BEFORE THE
ILLINOIS POLLUTION CONTROL BOARD
AMEREN ENERGY GENERATING
COMPANY,
Petitioner,
v.
)
)
)
)
)
)
ILLINOIS ENVIRONMENTAL PROTECTION )
AGENCY,
~
PCB 09-38
(Thermal Demonstration)
Respondent.
)
)
NOTICE OF FILING
TO:
J olrn Therriault, Assistant Clerk
Illinois Pollution Control Board
James
R. Thompson Center
Suite 11-500
100 West Randolph
Chicago, Illinois 60601
Joey Logan-Wilkey
Illinois Environmental Protection Agency
Division
of Legal Counsel
1021 North Grand Avenue, East
P.O.Box 19276
Springfield, Illinois 62794-9276
Carol Webb, Hearing
Officer
Illinois Pollution Control Board
1021 North Grand Avenue East
P.O.Box 19274
Springfield, Illinois 62794-9274
Webbc@ipcb.state.il.us
PLEASE TAKE NOTICE that I have electronically filed with the Office
of the Clerk of the
Pollution Control Board,
AMEREN'S RESPONSE TO THE RECOMMENDATION OF
THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY, ANSWERS TO
HEARING OFFICER QUESTIONS, PREFILED TESTIMONY
OF JAMES B.
McLAREN, Ph.D., ANNE SHORTELLE, Ph.D., AND JAMES
L.
WILLIAMS, JR., AND
APPEARANCE
OF GABRIEL M. RODRIGUEZ,
copies of which are herewith served upon
you.
Arneren Energy Generating Company
Electronic Filing - Received, Clerk's Office, May 12, 2009
Dated: May 12,2009
Amy Antoniolli
SCHIFF HARDIN
LLP
6600 Sears Tower
233 South Wacker Drive
Chicago, Illinois
60606
Tel: 312-258-5500
Email: aantoniolli@schiffhardin.com
CERTIFICATE OF SERVICE
I, the undersigned, certify that on this 12th day of May, 2009, I have served electronically
the attached
AMEREN'S RESPONSE TO THE RECOMMENDATION OF THE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY, ANSWERS TO HEARING
OFFICER QUESTIONS, PREFILED TESTIMONY OF JAMES B. McLAREN, Ph.D.,
ANNE SHORTELLE, Ph.D., AND JAMES
L. WILLIAMS,
JR.,
AND APPEARANCE OF
GABRIEL M. RODRIGUEZ,
upon the following persons:
John Therriault, Assistant Clerk
Illinois Pollution Control Board
James
R. Thompson Center
Suite 11-500
100 West Randolph
Chicago, Illinois 60601
therriauj@ipcb.state.i1.us
Joey Logan-Wilkey
Illinois Environmental Protection Agency
Division
of Legal Counsel
1021 North Grand Avenue, East
P.O.Box 19276
Springfield, Illinois 62794-9276
Joey.1ogan-wilkey@illinois.gov
May 12, 2009
Amy Antoniolli
SCHIFF HARDIN LLP
6600 Sears Tower
233 South Wacker Drive
Chicago, Illinois 60606
312-258-5500
Carol Webb, Hearing Officer
Illinois Pollution Control Board
1021 North Grand Avenue East
P.O.Box 19274
Springfield, Illinois 62794-9274
Webbc@ipcb.state.i1.us
BEFORE THE ILLINOIS POLLUTION CONTROL BOARD
AMEREN ENERGY GENERATING
COMPANY,
v.
ILLINOIS ENVIRONMENTAL
PROTECTION AGENCY
Petitioner,
)
)
)
)
)
)
)
)
)
)
Respondent. )
PCB 09-38
(Thermal Demonstration)
AMEREN'S RESPONSE TO THE RECOMMENDATION OF THE
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
NOW COMES AMEREN ENERGY GENERATING COMPANY ("Ameren" or "the
Petitioner"), by and through its attorneys, SCHIFF HARDIN, LLP, and pursuant to Section
106.208
ofthe Illinois Pollution Control Board's ("Board") procedural rules (35
Ill.
Adm. Code
106.208), and presents its response
to the Illinois Environmental Protection Agency's ("the
Agency") recommendation ("Agency Recommendation"). For the reasons provided herein,
Ameren disagrees with the recommendation and reasserts its petition
to modity the specific
thermal standard applicable to Ameren's heated effluent discharge
to Coffeen Lake.
On December 15, 2008, Ameren filed its Petition
to Modity Specific Thermal Standard
("Petition"). Pursuant to
35 Ill. Adm. Code 106.208, a recommendation was due to be filed on
February
13, 2009. On April 8, 2009, the Board Hearing Officer issued an order granting the
Agency until April 17,2009 to file the recommendation. The Agency filed the recommendation
on April 24, 2009.
I.
INTRODUCTION
Coffeen Station's discharge to Coffeen Lake is currently subject to a specific thermal
standard established
by the Board in CIPS v. IEPA, PCB 77-158, PCB 78-100 (consolidated)
(March 18, 1982). The thermal standard establishes monthly average and maximum thermal
limits in Coffeen Lake for specific monthly periods. Ameren has and currently operates under
these limits, which require that the lake temperature not exceed a monthly average
of 105
degrees Fahrenheit (HF") and a maximum of 112 F (for more than three percent of the hours)
during the calendar months
of June through September, and a lower monthly average of 89 F and
a lower maximum
of 94 F (for more than two percent of the hours) during the calendar months of
October through May.
In its Petition, Arneren seeks to modify
only
the thermal limits of the calendar months
May and October. Arneren's proposed modification does not seek revision
of thermal limits
during the summer months
of June through September. The months of May and October are
transitional months, insomuch as the ambient temperatures affecting lake temperature often
reflect summer temperatures rather than cooler winter temperatures. Arneren seeks to modify the
thermal limits during these transitional months
to provide for a more gradual change in lake
temperature like would otherwise naturally occur in a water-body not impacted
by thermal
discharge. Arneren does not anticipate that lake temperatures will even reach the limits
requested on a regular basis.
Under anticipated operating conditions, Arneren only expects to
exceed current temperature limits during unusually warm
Mayor October months. Accordingly,
the proposed modified thermal limits for May and October provide for transitional thermal
limits, requiring that Coffeen Lake not exceed a monthly average
of 96 F and a maximum of 102
F (for more than two percent
of the hours).
According
to the Agency Recommendation, Arneren is not entitled to relief in the form of
revised May and October limits.
It
appears to make three principal arguments. First, selectively
quoting from the SIUC Reports so as to highlight fish kills reported since 2000, the Agency
-2-
argues that the Petition does not address the potential impact of the proposed May/October limits
on fish habitat, specifically focusing on impacts to summer lake temperatures and dissolved
oxygen concentrations. The Agency acknowledges that the historic fish kills occurred in the
middle
of summer, but argues that increasing thermal loading in May may have a cumulative or
carry-over effect into summer months making summer conditions worse than have been seen in
the past. Second, noting that Coffeen Lake is impaired for phosphorous, the Agency asserts that
Ameren has not assessed whether increased thermal loading in May will result in greater
"internal loading"
of phosphorous. Third, it notes that the lake is subject to a mercury advisory
and that the Petition failed
to address whether increased thermal loading would result in an
increase in methyl mercury through the process
of methylation of mercury found in the lake.
The Agency Recommendation
of denial is flawed and should be disregarded. As noted
below, the Agency's assertion that the Petition fails to address the impact
of the proposed relief
on lake temperatures and habitat is simply wrong. The ASA Report and the SlUC studies focus
intently on the question
of the thermal regime and the health of the aquatic community. Both
ASA and SlUC concluded that RIS are propagating and thriving. Second, the assertion that
granting the proposed relief for May and October will have some sort
of carry-over or
cumulative adverse effect on lake temperature and dissolved oxygen is unsupported
by the data.
There is no evidence that sustained thermal temperatures will lead
to an increase in summer lake
temperatures or dissolved oxygen depletion over time.
See
Pre-filed Testimony of Dr. McLaren,
at par.
9, 10. Finally, the assertions that increasing the thermal limits in May and October will
lead to greater internal loading
of phosphorous or an increase in methylation of mercury in this
lake are also not supported
by the data.
See
Pre-filed Testimony of Dr. Shortelle, at par. 3, 5, 8.
The Petition and supporting testimony and reports do, in fact, address the impact that the
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Electronic Filing - Received, Clerk's Office, May 12, 2009
proposed limits will have on the aquatic community and demonstrate that the modification to the
May and October limits will
be environmentally acceptable to the lake.
II.
STATUTORY AND REGULATORY REQUIREMENTS DO NOT
REQUIRE A SHOWING OF
NO ENVIRONMENTAL IMPACT
At the outset, Arneren wishes to address the question of the appropriate standard in this
proceeding. The Agency makes much
of the fact that fish kills have occurred over the years in
Coffeen Lake.
It
selectively quotes from the SIUC reports to create the impression that fish kills
occur frequently and that the conditions in the lake are not capable
of sustaining fish, shellfish
and wildlife. The Agency's selective quotation
of the SIUC studies distorts the overall
conclusions
of the SIUC studies as well as the ultimate issue in this case: Whether
environmentally acceptable conditions will persist at Coffeen Lake with the discharge
as
proposed under the Petition.
Arneren is not requesting a new thermal standard. The Petition requests a modification
of
thermal limits at Coffeen Lake for the two transitional months, May and October. Section 28.1
of the Act permits the Board to grant an adjusted standard to persons who provide the required
justification. Accordingly, while Arneren is not seeking that the Board establish a specific new
standard, it has the burden
of demonstrating that it has satisfied the required justification for
thermal discharges to an artificial cooling lake.
Pursuant to 35 Ill. Adm. Code I06.200(a)(2)(A), Arneren must demonstrate that Coffeen
Lake will remain "environmentally acceptable and within the intent
of the Act" upon receiving
the heated effluent from Coffeen Station consistent with Ameren's proposed thermal limits in
May and October. Illinois regulations define
"environmentally acceptable and within the intent
of the Act" to mean that Coffeen Lake must remain
"capable of supporting
shellfish, fish and
wildlife, and recreational uses consistent with good management practices."
See
35 Ill. Adm.
-4-
Electronic Filing - Received, Clerk's Office, May 12, 2009
Code 106.202(b)(I)(A); 35
Ill.
Adm. Code 302.21 I (j)(3)(A) (emphasis added).
I
The Board
itself has noted that the lake need not have an acceptable fishery, but need only provide
conditions
capable a/supporting
a fishery and recreational uses.
In
the Matter of: Water Ouality
and Effluent Standards Amendments, R75-2 slip op. at 40 (Sept. 29,1975).
Notably absent from the federal and state thermal demonstration requirements is a duty
to
demonstrate an absence of environmental impact on the waterbody receiving the heated effluent.
Rather, the thermal limit must maintain conditions in the waterbody such that it remains capable
of supporting shellfish, fish and wildlife and a diverse biotic community capable of sustaining
itself through cyclic seasonal changes. Ameren's proposed modification
to the thermal limits in
May and October
do not impact Coffeen Lake's capacity to maintain a sustainable biotic
community.
In
fact, the proposed thermal limits allow for water temperatures that are lower than
those which are already permitted during the summer months
of June through September. As
such, the record is clear that the proposed temperatures for May and October will
be well
tolerated
by the lake and will not have any appreciable adverse impacts in May and October.
III.
THE AGENCY MISREPRESENTS THE EXTENT AND NATURE OF
THE HISTORIC IMPACT ON FISH AT COFFEEN LAKE
I
Further, any such demonstration may be undertaken consistent with Section 316(a) of the Clean Water Act
("CWA")
(33 USC § 1326(a».
See
35
Ill.
Adm. Code 106.202(b)(2)(C). Section 316(a) authorizes alternate
thermal conditions in NPDES permits where the effluent limitation is "more stringent than necessary to assure the
protection and propagation
of a balanced, indigenous population of shellfish, fish, and wildlife in and on the body of
water into which the discharge is to be made."
See also
40 CFR § 125.73. Federal regulations provide further
clarity to this requirement, deftning a balanced, indigenous population to mean "a biotic community typically
characterized by diversity, the capacity to sustain itself through cyclic seasonal changes, presence of necessary food
chain species and by a lack
of domination by pollution tolerant species."
See
40 CFR § 125.71 (c). That is, the
structure, function and cyclical patterns typical
of the waterbody's aquatic community should be maintained in the
presence
of the thermal discharge.
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Electronic Filing - Received, Clerk's Office, May 12, 2009
A.
The Amount and Nature of Historic Fish Kills are Misrepresented
The Agency's selective quotation of the
SIUe
reports does not provide a fair
representation
of the decade-long
slue
studies.
SIUe
identified three, possibly four, thennally-
induced fish kills during the
10 years it studied the impact ofthe discharge on the lake.
According to
SlUe,
two, possibly three, of these instances occurred in situations where sudden
changes in water temperature resulted in entrapment
of fish in coves near the discharge point.
These occurred in 2001 and 2002.
SIUe
indicated a third instance may have occurred in 2005.
2
SIUe
noted that a sudden increase in water temperature in the mixing zone main channel can
lead to entrapment
of small numbers of fish in coves in near the mixing zone. If high
temperatures persist in the main channel long enough, water temperatures in these coves will
increase until they are similar
to those in the main channel leading to what
SIUe
called "eroded
fish habitat." Again,
SIUe
identified two (2001, 2002) and possibly a third such event (2005) in
the
10 years of its study of the lake.
See
Pre-filed Testimony of Dr. McLaren, at par. 12.
SIUe
linked the 2001, 2002 and 2005 incidents to fish becoming trapped in coves near
the discharge because the fish kills were short-lived events that did not continue even where
extreme conditions persisted for prolonged periods. When temperatures increase in the eastern
arm
of the lake, fish move away from the eastem arm toward the western ann where
temperatures are typically
10 to 15 degrees cooler. Only those few fish trapped within the coves
by sudden temperature changes in the discharge become trapped.
3
See
Pre-filed Testimony of
Dr. McLaren at par. 12.
2 The most recent of these events - in 2005 -- involved a total of 19 channel catfish.
3 As Dr. McLaren has indicated, the proposed modification to the thermal limit would eliminate abrupt changes in
water temperatures in the area near the discharge, and would more realistically reflect the natural thennal
environment where temperatures would change more gradually. Moderating the thermal limit for May
to provide a
less abrupt change in the thermal discharge would likely result in even fewer incidents
of entrapment.
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Electronic Filing - Received, Clerk's Office, May 12, 2009
Apart from entrapment, SIUC did identify one other instance of a thermally-induced fish
kill.
In
July 1999, abnormal meteorological conditions
(e.g.,
prolonged heat and humidity,
reduced wind/waves, and overcast sky), coupled with unusually warm water temperatures, led
to
a limited fish kill
(e.g.,
approximately 200 or fewer fish recovered). With respect to this event,
however, SIUC also specifically noted that fish kills arising from extreme weather conditions are
to
be expected in this region of the country, whether in cooling or in ambient lakes. In the case
of the July 1999 incident, for example, similar fish kills were reported at other southern Illinois
lakes, including at least one ambient lake, according to the SIUC investigators. More important,
these kinds
of extreme weather conditions are not typical in May and October. Indeed, of the
three or four thermally-induced incidents described in the
10 years of studies done by SIUC, all
occurred in July or August.
See
Pre-filed Testimony
of Dr. McLaren at par. 13.
Since 1999, the Station has adopted several measures to avoid thermal conditions similar
to those that might have led to the 1999 fish event. These measures include installation of a 70-
acre supplemental cooling basin in 2000 and a 48-cell helper cooling tower structure in 2002, as
well as intensive monitoring
of water temperatures at several locations within the cooling loop.
Since the installation
of these enhancements, SIUC reported no cases of thermally-induced fish
kills, other than the possible 2005 event, and none in those years that did not involve entrapment.
The SIUC studies thus indicate that thermally-induced fish mortality is a rather infrequent
phenomenon.
Lastly, the Agency's suggestion that historic fish kills are prima facie evidence
of
environmentally unacceptable conditions is wrong. In the original 1977 proceeding for a specific
thermal standard for Coffeen Lake, the Board found Coffeen Lake environmentally acceptable
despite prior fish kills. The Board granted Central Illinois Public Service Co.,
("CIPS") the
-7-
requested specific thennallimit even though there had been three prior fish kills reported, the
worst
of which concerned 80-100 of one species of fish. Central Illinois Public Service Co.
(CIPS) v. !EPA, PCB 77-158, slip op. at 6 (Apr. 27,1978). The Board emphasized that it was
not necessary to "create and sustain a fishery in Coffeen Lake
but rather that Coffeen Lake be in
such a condition as to allow the presence of a fishery."
[d.
at 7.
As noted above, Coffeen Lake is supporting a healthy and propagating biotic system
primarily free
of thennally-induced fish kills even when lake temperatures exceed those
temperatures that might occur under Ameren's proposed
thennallimits. Moreover, historic fish
kills have not resulted
in significant long-tenn impacts to Coffeen Lake or the fish populations.
4
SIUC has noted that it found no significant difference in the health or condition of fish before
and after a fish kill.
See
Agency Recommendation, Exhibit 2, SIUC Draft Report February 2004
at
27.
In
fact, the March 2007 Annual Report noted that "[t]he number ofiargemouth bass that
died in Coffeen Lake and Newton Lake in 1999, relative to their abundance in the two lakes,
indicated no significant long-tenn negative effects on the two bass populations were
likely."
See
Agency Recommendation, Exhibit
I, SIUC Draft Annual Report March 2007 at 9. This
indicates that fish kills have not had a long-tenn detrimental effect
on the fish population in
Coffeen Lake.
B.
Fish Population and Relative Weight Indicate Environmentally
Acceptable Conditions at Coffeen Lake
4 As previously identified
in
Ameren's Petition, the ASA Report reached the same conclusion, and noted
that it was even less likely that detrimental effects on fish
could result from the proposed May and October thermal
limits.
See
Petition, Exhibit 11, ASA Report at p. 5-2. In fact, the ASA report was overly conservative on the
impacts to the fishery because the report made conclusions
based on current lake levels in Coffeen Lake. Ameren
anticipates raising water levels
in Coffeen Lake which will, in effect, further lessen any potential detrimental effect
on fish under Ameren's proposed thermal limits.
See
Answers to Hearing Officer Order, Attachment A.
-8-
IEPA briefly cited passages from IDNR's March 23,2007 Lake Management Status
Report ("IDNR Report") that address the status
of the largemouth bass population and other
species in 2006 with regard to relative weight (fish condition) and abundance (catch per unit
effort, or "CPUE"). The Agency's assertion that the IDNR Report suggests that Coffeen Lake
will not be able
to support Ameren's proposed thermal limits is not supported by the data.
A relative weight index ("Wr")
of 1 00 implies ecological and physiological optimality for
a population. While the 2006
Wr for largemouth bass declined from 102 in 2004 to 95 in 2006,
there was no sustained trend
of declining Wr during the seven-year period from 2000 through
2006. See
Petition, Exhibit 12, IDNR Report at
I.
In fact, all reported values (range 95-101) fell
within the Lake Management Program ("LMP") objective range
of 90-11 O. The annual
variability in Wr observed for largemouth bass since 2000 is typical for any fish population.
Additionally, a sustained decline in
Wr has not been observed for any other species, as
would be expected ifthere were continual thermal stress. As recently as 2003 and 2004, the Wr
for bluegill and redear sunfish was 88-89, i.e., very close to achieving the LMP objective
of90-
110 for this species, while white crappie consistently have achieved the LMP objective of90-11 0
for Wr.
See
Petition, Exhibit 12, IDNR Report at
2. Channel catfish in 2004 and 2006 did not
quite achieve the LMP objective for Wr. However, during these two most recent years
of data,
channel catfish abundance (CPU E) has doubled or tripled and the proportion of"quality-size
fish" ("PSD") in the population has approximately doubled or tripled.
See
Petition, Exhibit
12,
IDNR Report at 2.
IV.
HIGHER THERMAL LIMITS IN MAY AND OCTOBER WILL NOT
RESULT IN HABITAT EROSION DURING SUMMER MONTHS
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Electronic Filing - Received, Clerk's Office, May 12, 2009
While the Agency acknowledges that the proposed limits for May and October are lower
than temperatures the lake has experienced in the past, it asserts that increased thermal loading in
May and October under Ameren's proposed thermal limits could have a cumulative impact on
water temperatures or dissolved oxygen concentrations in the latter parts
of the summer season
leading to habitat erosion. The Agency states that Ameren has failed to adequately address the
environmental impacts
of increased heat loading in May on lower dissolved oxygen levels and
prolonged periods
oflake stratification throughout the remaining summer months.
The Agency's assertion is incorrect. As noted below, Ameren has in fact assessed
whether there is any carry-over or cumulative effect from increasing the therrnallimits in May
and October on temperature and dissolved oxygen concentrations in later months and found
no
such effect. There is no evidence demonstrating a cumulative impact on thermal loading from
higher May and October thermal limits, in the form
of higher lake temperatures or lower
dissolved oxygen concentrations during later summer months or other months in the year.
A.
Higher Thermal Limits in May and October Do Not Result in Higher
Lake Temperatures during Summer Months
As more thoroughly described in Ameren's Petition, Ameren relied upon a March 2008
evaluation
of the potential impacts of the proposed thermal limits conducted by ASA. ASA
examined data from the
SlUe studies conducted from 1997 through 2006.
It
found no
statistically significant relationship between higher water temperatures in May with warmer
temperatures throughout the remainder
of the season.
See
Petition, Exhibit 11, ASA Report at p.
2-4. In fact, the ASA Report noted that annual variability in metrological conditions appeared to
dictate historic monthly water temperatures.
See
Petition, Exhibit 11, ASA Report at p. 5-1.
Sargent
&
Lundy corroborated that there was no such cumulative impact through thermal
modeling. Sargent
&
Lundy evaluated the potential impacts of the proposed thermal limits under
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Electronic Filing - Received, Clerk's Office, May 12, 2009
near worse-case conditions in tenns of temperature increases and maximum station operation in
the lake during the months
of May and October.
See
Petition, Exhibit 11, ASA Report at p. 4-2.
It
compared mean daily temperatures in the lake for the May to October period for 1987 - a
particularly warm summer - with the predicted temperatures under the same conditions but with
higher thennalloading in May and October. The modeling showed that the mean daily lake
temperatures for the months
of June through September would be unaffected by thennalloading
in May, as mean lake temperatures would rapidly converge by early June.
See
Petition, Exhibit
11, ASA Report
at p. 4-3. The modeling indicates that increasing thennalloading in May,
consistent with Ameren's proposal, will not carryover to impact water temperature during the
summer months
of June through September.
The Agency questions the reliability
of the ASA Report in assessing the potential
cumulative impacts
ofthe proposed thennallimits. The Agency criticizes ASA's use of "degree-
days"
to evaluate potential cumulative thennal impacts as opposed to an evaluation of
temperature and dissolved oxygen related to depth. The use of degree-days, according to the
Agency, does not take into account varying temperatures and levels
of dissolved oxygen at depth
and therefore cannot accurately assess whether higher thennallimits in May and October will
have an impact on the critical summer months
of June through September.
The Agency's criticism, however, lacks merit.
If anything, ASA reliance on degree-days
resulted in an assessment that was overly-conservative. Degree-days,
as calculated by AS A, are
the cumulative daily mean near-surface water temperatures recorded at the boundary
of the
mixing zone. Temperatures
at the edge of the mixing zone represent the wannest exposure
temperatures in an artificial cooling lake, as temperatures decrease with distance from the
effluent discharge point. Thus, ASA's reliance on degree-days measured at the edge
of the mix
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Electronic Filing - Received, Clerk's Office, May 12, 2009
zone represents a near worst-case assessment on the question whether increasing thermal loading
in May would have a lasting or persistent carry-over affect into succeeding summer months.
In addition, degree-days are an appropriate mechanism and reliable index to assess
cumulative thermal impact because it accounts for annual variation in heat loading and
meteorological conditions.
See
Petition, Exhibit 11, ASA Report at p. 2-4. The SIUe studies
repeatedly highlight the significant impact that meteorological conditions have on lake biological
conditions, independent
of water temperature.
See
Agency Recommendation, Exhibit 1, SIUe
Draft Annual Report March 2007 at 8; Attachment 2, March 2006 Annual Report at 8 (attached
as Attachment 1), March 2005 Annual Report at 5 (attached as Attachment 2).
By taking into
consideration meteorological and heat loading variability and worse-case water temperature, the
use
of degree-days represents a stringent evaluation of the potential environmental impacts of the
proposed thermal limits. The Agency's assertion that the use
of degree-days is insufficient to
evaluate cumulative impact is therefore meritless. Ameren has demonstrated that thermal
loading in May and
October will not have a cumulative impact on lake conditions during the
summer months
of June through September.
B.
Higher Thermal Limits in May and October Will Not Have a
Cumulative
Impact on Dissolved Oxygen Levels in Succeeding
Summer Months
The Agency argues that increased heat loading in May and October may have an adverse
affect on dissolved oxygen levels and therefore lead
to erosion of habitat, and ultimately fish
kills.
It
offers no evidence - it simply asserts that the Petition failed to address this issue.
However, this concern is also unfounded.
First, years worth
of data show that temperatures warmer than those being proposed for
May and October have not adversely affected the aquatic community. Thus, the evidence
-12-
demonstrates that dissolved oxygen concentrations will be sufficient to sustain the aquatic
community even under the proposed
May and October limits.
As it did with temperature, however, the Agency argues that increased loading
in May
could have a cumulative effect
on dissolved oxygen levels in June through September. ASA has
examined the
SIUe data to determine whether the temperature and dissolved oxygen profiling
SIUe performed showed any such effect.
It
looked at the SIUe data with respect to dissolved
oxygen at depth in segments I and 2
of the lake to determine whether thermal loading from the
heated discharge exhibited any carry-over effect on oxygen concentrations as the summer wears
on.
It
plotted the depth at which Smg/I dissolved oxygen was first encountered in each week
during the summer months for the years 2001 through 2006.
It
plotted the data for both
segments I and
2. While the depth at which dissolved oxygen concentrations reached 5 mg/I
varied from week to
week throughout the summer; the data plots show no discernable pattern
that oxygen depletion is increasing as summers progress. This pattern (or lack thereof) is
evident in every year
SlUe performed dissolved oxygen and temperature profiling.
See
Pre-filed
Testimony
of Dr. McLaren, at par. 10. The data simply do not support the premise advanced by
the Agency.
In sum, the data do not indicate that the proposed modifications to thermal limits in May
and October will have a cumulative impact and result in warmer lake temperatures or decreased
dissolved oxygen levels in summer months or other months throughout the year. Absent
cumulative impact, the evaluation
of the potential impact of Ameren's proposed thermal limits
must focus on the impact
in May and October. As explained below, the Agency's concerns are
unwarranted and contrary to the available evidence.
V.
AN INCREASE IN LAKE TEMPERATURES IN MAY AND OCTOBER
FROM AMEREN'S PROPOSED THERMAL LIMITS WILL NOT
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IMPACT TOTAL PHOSPHOROUS AND MERCURY LOADING IN THE
LAKE
The Agency notes that Coffeen Lake is impaired for phosphorous, and asserts that
Ameren has not assessed whether increased thermal loading in May and October will result in
greater "internal loading"
of phosphorous, i.e., phosphorous released from sediments. The stated
concern is that higher temperatures in May and October may result in prolonged stratification
which, according
to the Agency, can increase phosphorus releases from sediments.
It
makes a
similar argument for mercury. These concerns are unwarranted.
Ameren retained Dr.
Ann B. Shortelle to perform an evaluation of potential impacts
associated with modified thermal discharge during the months
of May and October, and to
quantity the potential for additional phosphorus release and anticipated impacts to surface water
quality due to the increase in thermal loading. She also assessed conditions associated with the
lake and mercury. The evaluation is provided as a report entitled "Evaluation
of Effects of
Revised Thermal Standards on Phosphorus and Mercury Cycling in Coffeen Lake," attached as
Attachment I to the Pre-Filed Testimony
of
Ann
B. Shortelle.
With respect
to phosphorous, Dr. Shortelle's analysis showed that any phosphorus
released from the sediment is not expected to reach the epilimnion, and is therefore unavailable
for biological production within Coffeen Lake. Moreover, even
if phosphorous releases from the
hypolimnion to the epilimnion, the total loading attributable to internal loading from sediment
release is so minute compared to loading from external sources
as to be unobservable. She
compared seasonal water quality data and saw no evidence that phosphorus released from
sediments was or is
an important component of surface water phosphorus loading within Coffeen
Lake. She concluded that future modifications
to thermal discharge limits from Coffeen Station
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Electronic Filing - Received, Clerk's Office, May 12, 2009
are unlikely to present significant phosphorus loads from sediment release to the epilimnion in
the future, and therefore are not a threat
to the existing water quality of Coffeen Lake.
With respect to mercury, the Agency states that periods
of stratification and low
dissolved oxygen in the lake will produce more methylmercury. Noting that methylmercury
bioaccumulates and is typically found in predatory fish, the Agency goes on to state that
if the
temperature
of the lake is higher in May and October, and the period of stratification is
lengthened, the levels
of mercury in the fish may also increase.
Dr. Shortelle considered this hypothesis in light
of the current understanding of mercury
and mercury dynamics in Coffeen Lake, and the incremental effect
of the change in the thermal
standard for May and October on mercury cycling in the lake. Based
on the available Coffeen
Lake data, she concluded that mercury concentrations appear to
be generally low in the lake
relative
to other lakes in Montgomery County, in the State of Illinois or across the nation. She
also notes that conditions in the lake
do not appear to be favorable for methylation. She
concludes
by noting that the proposed change in the thermal standard affecting May and October
conditions does not substantially change lake conditions, although thermal stratification may
persist for more days, on average, annually. That change, she noted, is minor and does not
represent a change that could or would significantly increase hypolimnetic mercury methylation
rates.
It
is anticipated that the change, if any, would be so small, that it would not result in
increased mercury in the biota.
Additionally, as the Board is well aware, Illinois has taken the lead in reducing the levels
of atmospheric deposition of mercury from electric generating utilities. In accordance with
Illinois mercury regulations, Ameren has and continues
to install pollution control equipment
that substantially curtails the release
of mercury from its facilities. Ameren's activities will
-15-
Electronic Filing - Received, Clerk's Office, May 12, 2009
likely result in a noticeable reduction in mercury levels in fish in Illinois lakes. During the 2006
Illinois mercury rulemaking proceedings, the Agency testified that a substantial reduction in the
atmospheric deposition
of mercury was expected to result in a similar reduction in mercury
levels in fish tissue within a period
of a few years.
See
In the Matter of: Proposed New 35 Ill.
Adm. Code 225 Control of Emissions From Large Combustion Sources (Mercury), R06-25,
Testimony
of Marcia Willhite, at 162-172 (June 14, 2006). The Agency cited to mercury studies
done in Florida and Massachusetts which found a direct correlation between a reduction in
mercury emissions into the atmosphere and a reduction in mercury levels in fish tissue.
V.
THE ALTERNATIVES TO THE REQUESTED RELIEF ARE
ECONOMICALLY UNREASONABLE
In its recommendation, the Agency states Ameren has not met its burden to show that the
alternatives investigated are not technically feasible and economically reasonable. The Agency
Recommendation supposes that based on the Sargent
&
Lundy Report, attached to the Petition as
Exhibit 15, the 175,000 gallon-per-minute ("gpm") helper cooling tower would be an
economically reasonable alternative for Arneren. Ameren explained in the Petition that
considering capital and operating and maintenance costs as well as time for commissioning,
Ameren would not recover its costs from this option until 2022. Petition at 30-32. More recent
analyses have confirmed that this option is economically prohibitive because Ameren would not
recoup costs expended
to realize this project during the operating life of the helper tower.
Since the original analyses in the Sargent
&
Lundy Report were performed in 2007,
market prices for electric capacity and energy have fallen considerably. Accordingly, Ameren
prepared
an updated analysis utilizing May 2009 capacity and energy prices. While conducting
this economic analysis, Ameren also refined and updated certain assumptions utilized in the
August
2007 analysis regarding the capital expenditures and revenue impacts associated with the
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Electronic Filing - Received, Clerk's Office, May 12, 2009
installation of enhanced cooling technologies. The result was a conclusion that the 2007 analysis
overstated the economic viability
of an $18 million investment required to potentially increase
the availability
ofthe Coffeen plant during two months of the year. The updated economic
analysis demonstrates that the additional capacity revenues and energy margins realized from
this increased availability do not recover the high up-front cost. The installation
of such
technology is, therefore, economically unreasonable.
VI.
CONCLUSION
Contrary to the Agency's assertions, Ameren has met its burden and sufficiently
demonstrated that the proposed modification to the thermal limits in May and October will not
impact the capability
of Coffeen Lake to support a diverse fish and biotic community capable of
sustaining itselfthrough cyclic seasonal changes. Accordingly, Ameren's proposed modification
is consistent with applicable regulatory requirements and its Petition should
be granted.
Dated:~
/1.- ,2009
Amy Antoniolli
SCHIFF HARDIN, LLP
6600 Sears Tower
233 South Wacker Drive
Chicago, Illinois 60606
312-258-5500
Fax: 312-258-2600
aantoniolli@schiffhardin.com
by:
Respectfully submitted,
AMEREN ENERGY GENERATING
COMPANY,
One
of Its Attorneys
-17-
Attachment
1
Electronic Filing - Received, Clerk's Office, May 12, 2009
Ameren Newton and Coffeen Lakes
Research and Monitoring
Project
Annual Report
Principal Investigators
Ronald C. Brooks
Roy
C. Heidinger
Researcher
Patrick Beck
Fisheries
&
Illinois Aquaculture Center
Southern Illinois University at Carbondale
March
2006
DRAFT
Table
of Contents
LIS
T OF TABLES ,
.... ,
.. .. . ,
.... . , .
.. ..... ", .... ......................... .
...... ........................ .. ......... .....
III
LIST OF FIGURES ... ".. ... .... ... ........ .......... .. .. .. ... ... .. .... .. ... ........ .... .... .... .. ... .... .. .... .. .. .. .... . VII[
ABSTRACT.. . ...................... .. .. .... ...................... ..... ...................... .....
VI
INTR
ODUCTION ... .... .. .... ... .. ... .. .. .... ..... .............................. .... .... .... .. ..
P
L
ANT OPERATIO
N IN RELA
TION TO DISCHARGE STANDARDS ... .. .. . , . . ,.,
2
HABITAT
Ternperaturel
O)(ygeniDepth Profiles .... . .. .... . , .......... , ... , .. .. ... , ..... ...... ,..
4
Water Levels.. . .... .... ..........
........ ... .... ....... . .. .... .... ... .. ..... ........... ... ..
7
FACTORS ASSOCIATED WITH FISH KILLS...... .. .. .. .. .. .............. .. .... ... .. ....
8
SUMMARy .. . ... .. ..... ...... ... .. . .. .... ...... .. .. . ... .. .. ........ ... .... . .. ... ... .. . .. . ... . ,',.
1
4
REFERENCES ... .......... .. .... . .......... ..... , ... .. .... ....... . .... , .. .. .. , . .. . , . .. .. . ,... .. .....
16
APPENDIX A Depth, Temperature, Oxygen Profile.......................... .. .. A-I - A-7S
APPENDIX B Extreme Habitat conditions i
n Newton Lake and Coffeen
Lake during
1999 ............... .... .......... .............................. .... .... B- 1 - B-7
APPENDIX C Newton Lake Contour Maps.. .. ........ .... .. ................ .... .. .................
C I -
ell
II
List of Tables
I
Ameren
Project's basic sampling schedule for data collected
concurrently from 1997 through
2004 .................................................................... 17
2
Comparison of summer and fall mean monthly temperatures (OF) at the outer
edge
of the discharge mixing
zones." ....
.... .... ......................... .. ...... .. .............................. ............. .. .
... ................ ............ 18
3
Hourly surface temperatures in 1999 that exceeded 111°F at the outer edge of
Newton Lake discharge mixing zone. Within a year total hours above 111°F
were not to exceed 110°F (3% of total number of hours during the period June-
October, 3,672 hours) ....................................................................................................
19
4
Hourly surface temperatures in 1999 that exceeded 112°F at the outer edge of
Coffeen Lake discharge mixing zone. Within a year total hours above 112°F
were not to exceed 132 (3% of total number of hours during the period May -
October
, 4,416 hours) .................................................................................................... 20
5
Percent habitat among segments at various temperatures and oxygen ranges in
Coffeen Lake during May-September 2005 Profiles were taken from 2:00 p.m
to 7:00 p.m ..................................................................................................................... 21
6
Percent habitat among segments at various temperatures and oxygen ranges in
Newton Lake during May-September 2005. Profiles were taken from 12:00 p.m.
to 6:30 p.
m ..................................................................................................................... 25
7
Table 7. Comparison of the three days in Coffeen Lake during 1998 through 2005
that had the worst habitat conditions. Comparisons are made at 3 ppm dissolved
for 4 temperatures.
Percent habitats were averaged for Segments land 2.
Percentages for Segments 3 and 4 are given in parentheses when the segments
were sampled from
2000 through 2005 ........................................................................ 29
8
Comparison of the three days in Newton Lake during 1998 through 2004 that had
the worst habitat conditions.
Comparisons are made at 3-ppm dissolved for 4
temperatures.
Percent habitats were averaged in all four segments ............................. 31
9
Numbers of dead and moribund fishes observed by SIU personnel in Coffeen
Lake in 1999 ................................................................................................................. .33
10
Number of dead and morbid fishes observed by SIU personnel in Newton Lake
in 1999 .......................................................................................................................... .34
II
Number and total length of dead and morbid fish observed by SIU personnel in
Coffeen Lake and Newton Lake in 2000 and 2001 ...................................................... .35
III
Electronic Filing - Received, Clerk's Office, May 12, 2009
12
Number and total length of dead and moribund fish estimated by IDNR personnel
in Coffeen Lake from 24 June through 4 July,
2002 .................................................... .3 7
IV
Electronic Filing - Received, Clerk's Office, May 12, 2009
List of Figures
Figure
Page
1
Newton Lake with four segments where sampling was conducted. Water
temperature and dissolved oxygen were sampled at each transect line from
August 1997 through
2005. Numbers represent locations of continuous
temperature recorders ....................................................................................................
38
2
Coffeen Lake with two segments where sampling was conducted for water
temperature and dissolved oxygen from August
1997 through 2005. Segments 3
and 4 were added in
2000. Sampling sites are represented by numbers inside
lake borders .................................................................................................................. .39
3
Mean daily temperatures during
2005 at four monitoring stations in Newton Lake
at a depth
of 1.5 meters. Segment one represents the discharge mixing area, and the
stations are spaced throughout the lake to Segments 4 which
is near the water
intake area ......................................................................................................................
40
4
Mean daily temperatures during 2005 in Newton Lake Segment 1. Lake bottom
is approximately 16.4 feeL ......................................................................................... 41
5
Mean daily temperatures in Segment I (mixing zone) during 2005 in Coffeen
Lake. Lake bottom
is approximately 18.0 feet... ......................................................... .42
6
Mean daily temperatures during 2005 at four monitoring stations in the Coffeen
Lake at a depth
of 1.5 meters. Segment one represents the discharge mixing area,
and the stations are spaced throughout the lake
to Segments 4 which is near the
water intake area ............................................................................................................
43
7
Water levels (feet) in relation to pool level in Newton Lake during 1997-2000 ......... .44
8
Water levels (feet) in relation to pool level in Newton Lake during 2001-2004 ......... .45
9
Water levels (feet) in relation to pool level in Newton Lake during 2005 .................... 46
10
Water levels (feet) in relation to pool level in Coffeen Lake during 1997-2000 ........ .47
II
Water levels (feet) in relation to pool level in Coffeen Lake during 2001-2004 ........ .48
12
Water levels (feet) in relation to pool level inCoffeen Lake during 2005 ................... .49
v
Electronic Filing - Received, Clerk's Office, May 12, 2009
ABSTRACT
Water temperatures in power-cooling reservoirs are often elevated to the point where summer
habitat is limited for most fishes. Occasionally, increases in water temperatures may be
responsible for stress-related fish kills.
Since 1997, three types of critical conditions that
resulted in fish kills have been recognized in Newton and Coffeen Lakes. The first type was
associated with severe summer ambient conditions, and lead to the most severe fish kills. The
largest fish kill
of mature largemouth bass in both Newton Lake and Coffeen Lake occurred in
1999 when elevated water temperatures associated with an experimental mixing zone surface
water temperature variance combined with summer weather conditions that caused particularly
low levels
of dissolved oxygen. Weather conditions that promoted a dissolved oxygen
reduction in the power-cooling reservoirs also caused fish kills in local ambient lakes.
Another type
of fish kill that likely occurred was habitat erosion, and we believe it accounted
for three smaller fish kills since 1997. In
2001 there was a temperature related fish kill on July
lOin Coffeen Lake and August 24 in Newton Lake. A small fish kill (124 fish) was observed
by
SIU personnel and estimated by IDNR between 24 June and 4 July, 2002 in Coffeen Lake. In
these cases, the small fish were probably trapped in a thermal refuge near or in the discharge
mixing zones.
Prolonged periods of heated discharge eventually eroded away the refuge. The
third type
of fish kill is angler related. During 2003 and 2004, few dead fish were observed
either lake, and the deaths appeared
to be angler related, it accounted for the most frequent
occurrences, but the least number
of deaths. In Newton Lake, no fish kills were observed during
2005. [n Coffeen Lake, 19 channel catfish were observed on 2 August, 2005, and habitat
conditions were the most critcal we observed throught the eight years
of this study. In each year
V
I
Electronic Filing - Received, Clerk's Office, May 12, 2009
of the study, a few largemouth bass and channel catfish are found dead or dying in both lakes.
The dead
or moribund fish are often in proximity of boat ramps or popular fishing areas. The
bass probably succumbed
to angling related stress. Such events were occasionally witnessed by
SIU personnel during the warmest periods. The deaths are usually delayed, and most anglers are
not aware
of the problem. The preponderance of the data collected during 2000 through 2005
suggests that there were no long-term negative effects of the fish kills in either of these lakes.
VII
Electronic Filing - Received, Clerk's Office, May 12, 2009
INTRODUCTION
This report includes 2005 water temperature and dissolved oxygen data collected in Newton
Lake and Coffeen Lake in Illinois. The data was collected using the same methods employed
annually since fall 1997 to facilitate comparison among years. Habitat availability was determined
by combining water temperature, dissolved oxygen, and depth; the limiting factors being water
temperature tolerances in conjunction with dissolved oxygen available to the fish.
The original project, which encompassed fall 1997 through fall 1999, monitored biotic
communities ranging from phytoplankton through major sportfish. The goal was to determine
conditions
of the biotic communities prior to a water temperature "Variance" initiated in 1999 and
compare those evaluations to the same parameters during and after the
"Variance". A fish kill
occurred during July, 1999 in both lakes (Appendix B) while the power plants were operating under
the new
"Variance" (Heidinger et al. 2000). As a result of the fish kills and other economic
considerations, the corporate decision was made to add additional cooling capacity
to the Newton
Lake and Coffeen Lake electrical generating stations. After summer 1999, the impetus
of the study
was to determine
if the 1999 fish kill and subsequent smaller fish kills in either lake adversely
affected three major sportfish populations in the lakes - channel catfish, largemouth bass, and
bluegill. Data presented
in this 2005 report will be used in conjunction with the previous years'
water quality data primarily to examine trends
of the abiotic parameters during potentially stressful
summer periods.
For sampling purposes, Newton Lake was divided into four segments (Figure I). From 1997
to 1999, Coffeen Lake was divided into two sampling segments. Beginning in
2000,
temperature/oxygen/depth profiles were taken in two additional Segments (3 and 4) in Coffeen Lake
(Figure 2). The basic sampling regime for data collected concurrently from
1997-2005 is outlined in
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table I . A full description of the methods can be found in Appendix A. The 2005 study was
approved and initiated at Newton Lake and Coffeen Lake during June. An additional component was
added to this year's report which included a bathymetry map
of Newton Lake from data collected in
previous years (Appendix C).
PLANT OPERATION
IN
RELATION TO DISCHARGE STANDARDS
Four months (June-September) potentially encompass the critical period when extremely
warm water temperatures may be lethal
to fish species, and extremely warm ambient temperatures
were prevalent throughout summer
2005. Water temperatures were correspondingly high in both
lakes. In Newton Lake, the June average water discharge temperature was
99.
0°F and higher than in
any previous study year (Table 2). However, hourly water discharge temperatures throughout the
study period were greater than
106.0°F on only 19 occasions (7-8 June) and were never higher than
106.5. These water discharge temperatures were not conducive of critical consequences to the biota
present in Newton lake. In fact, since 1999, neither mean monthly nor hourly temperatures have
approached the old "Variance" levels
of 102°F and 111°F, respectively. The highest monthly
average temperature
(l
04.1 OF) during this study was recorded during July 1999, and hourly
temperatures were consistently the highest recorded during this study exceeding
111 ° F on 100
occasions (Table 3). Therefore, despite the higher mean discharge temperature for June 2005,
hourly temperatures were not consistently high enough to cause excessive stress to the biota. Due to
extended periods of warm weather that persisted through September, the 2005 discharge water
temperatures (97.7°F) were also higher than in any previous year (Table 2). They were, however,
lower than the prior three months and not considered
to be critical.
Water temperatures typically cool considerably from the discharge mixing zone to our
Segment 4 station located near the intake (Figure I), but in Newton Lake, the most pronounced
2
Electronic Filing - Received, Clerk's Office, May 12, 2009
differences occurred from the Segment I station to our Segment 2 station (Figure 3). In Segment I,
the temperatures were usually much cooler at
3.0 m than near the surface or at 1.5 m (Figure 4). The
water temperature discrepancies among water depths were most pronounced
in Segment I and
gradually decreased as the water flowed towards the water intake (Appendix
A, Figures 22 - 25).
Coffeen Lake mixing zone water temperatures were recorded hourly at the edge
of the
mixing zone
in Segment I (Figure 2) either by Ameren or SIU-C for the past eight years. SIU-C's
temperature logger placement was located in direct proximity to the station used by Ameren for
measuring surface water temperatures in the mixing zone. However, the
SIU-C temperature loggers
were within 6 inches
of the surface, and the biostations used by AMEREN have sensors located near
the bottom
of the buoys (approximately 28 inches below the surface). Therefore, mean monthly
mixing zone water temperatures determined from
SIU-C temperature loggers for 200 I, July 2003,
and July-August 2004 are higher than would have been indicated for the deeper sensors on the
biostations. This is especially true
in Coffeen Lake where there can be a distinct drop in temperature
throughout the upper three meters
of water in that area of the lake (Figure 5). Hence, the discharge
water temperatures reported for July
2003 (104.3°F) and July-August 2004 (l05.0°F and 105.6°F)
were the highest among the eight years studied in Coffeen Lake (Table 2), but they were also slightly
elevated from the levels that would have been recorded at approximately one meter.
Given the slight corrections likely required for the previous two-years' data, it is likely that
June
- September 2005 water discharge temperatures (99.9 - 104.2°) averaged higher than any
previous year, and they were certainly higher than
in 1999 - year of the fish kill (Table 2). However,
the maximum water discharge temperature recorded
in 2005 was 111.3°F, and there were only 24
records where hourly temperatures exceeded
111°F . Those temperatures occurred during 27 and 29
June and on
31 JUly. Although these water temperatures were high, they were apparently infrequent
3
enough that the biota in Coffeen Lake did not succumb enmass to excessive thermal stress. When
fish kills occurred in 1999, the maximum hourly surface water temperatures were higher (115.4
OF)
and more frequent than in 2005 (Table 4). Additional weather-related factors in 1999 prolonged
conditions that limited the cooling capacity
of the lake water and resulted in temperatures that were
elevated at all depths and in all segments
of the lake (Appendix B). In 2005, water temperatures
cooled considerably as the distance increased from the discharge (Figure
6).
HABITAT
Temperature/Oxygen/Depth
Profiles
Seasonal temperature/oxygen /depth profiles were taken in Newton Lake and Coffeen Lake
from 1997 through
2005 (Appendix A). Exact periods of data collection varied somewhat by grant
time lines, but the historically, most stressful periods for the fish were usually encompassed.
We
estimated how much of the lake or lake segments were available to the fish as a percentage of the
depth
of the water that was below various temperatures
(87-96°
F) and above various dissolved
oxygen levels
(l-4ppm) (Heidinger et al. 2000). The mean percentage difference in habitat was
calculated at
1.0° F intervals from
87-97°
F at dissolved oxygen levels from 1-4ppm at Ippm
intervals.
During
2000-2005, we added two additional lake segments (Segments 3 and 4) to our
original two segments (Segments
I and 2) in Coffeen Lake. Segment 3 is the large arm on the west
side
of Coffeen Lake known as cemetery bay, and segment 4 is the area between the intake canal and
the railroad bridge. Both segment 3 and segment 4 are outside
of the normal cooling loop.
Habitat availability was recorded year around during the initial three years
of study. The
results indicated that potentially critical periods for fish existed in the power-cooling lakes between
4
Electronic Filing - Received, Clerk's Office, May 12, 2009
June and mid-September. Therefore, since 2000, water temperature, dissolved oxygen, and depth
profiles were monitored only during the summer periods when the grant time lines permitted.
Initially in the study period, habitat availability was compared between morning and
afternoon samples.
It appeared that afternoon temperature/oxygen/depth profiles gave a reasonable
estimate
of when the amounts of habitat available to the fish at various temperature and oxygen
levels were
at a minimum (Heidinger et at. 2001). Therefore, the afternoon samples would likely
best indicate times when fish would likely be exposed to maximum stress periods, and habitat
profiles used in this report were taken from the latest possible times recorded within a date for each
year
..
Habitat data (2005) complete with all temperature ranges (87 - 96°F), dissolved oxygen
levels
(1 - 4), segments (1 - 4) and sample dates are presented in Appendix
A.
Ancillary versions of
that appendix are given in Table 5 (Coffeen Lake) and Table 6 (Newton Lake). We also determined
the three days per year that had the smallest amount
of habitat from our samples from 1998 through
2005 for Coffeen Lake (Table 7) and Newton Lake (Table 8). In 2002, because
of the contract time
line, habitat monitoring formally started August
1. However, since there was a particularly warm
period in July, we took temperature, oxygen, and depth profiles
in Coffeen Lake on 6 and 8 July.
For Chapter I, habitat tables
(2005) were condensed to include only four temperatures (87, 90, 93,
and 96°F) , and tables with data providing dates with the most critical habitat conditions during 1998-
2005 were compiled using 3-ppm dissolved oxygen
as a minimum criterion for the biotic
communities at the same four temperatures. Habitat percentages represent means across all four
segments
in Newton Lake (Figure 1) and only segments one and two in Coffeen Lake (Figure 2).
During 2005 in Coffeen Lake, 28 June, 27 July, and 2 August were the three days when
water quality was measured and conditions appeared
to be extremely critical (Table 7). Those were
5
Electronic Filing - Received, Clerk's Office, May 12, 2009
days when habitat availability in the cooling loop (segments I and 2) was 0-3% at even 93°F. Even
in segments 3 and 4 (located outside the cooling loop) habitat availability only ranged from 0% to
7% on 28 June and 22 August. On 27 July, available habitat (at 93°F and 3 ppm dissolved oxygen)
in
Segements 3 and 4 was at 25% and 29%, respectively. At 93°F and 3 ppm dissolved oxygen, fish
would be compelled to locate some type of thermal refugia to avoid short-term thermal stress. Each
of those three days in 2005 represented the most critical conditions determined for the entire eight-
year period; however, dead or moribund fish were located only on 2 August, 2005 when 19 channel
catfish were found
in Segment 2 (across the lake from the water intake area). The fish had been
dead for a period of time that was indicative of mortality occurring more than several hours previous
to their detection. Given the water flow in Coffeen
Lake, it is likely that the fish did not die in the
immediate vicinity, but somewhere in
Segment 1.
It
is possible that the fish had been trapped in a
cove near the warm-water discharge area and succumbed
to excessive temperature erosion.
Similar critical habitat conditions have been apparent on seven other dates during the eight
years
of data collection (Table 7). Two of the seven dates occurred in 2005. No significant fish kills
occurred on any
of the other dates following the 1999 fish kill despite the fact that suitable habitat
was extremely limited. It is possible that in 1999, habitat conditions were worst after the sample
dates when fish kills were reported. Habitat conditions were as critical on 8 August,
200 I, 6 July
and 8 July,
2001, 20 August, 2003 and in all three of the dates in 2005 as they were on 23 July, 1999
-
just four days before the major portion of the fish kill occurred.
Average, lake wide habitat values do not necessarily give a complete indication
of how
stressful the habitat really is
to fish in specific sections of the lake. For example, most habitat values
in Coffeen Lake indicate more limited quality habitat
in Segment I than when both segments are
averaged. Extremely limited habitat was available
to fish in Coffeen Lake on the eight dates
6
Electronic Filing - Received, Clerk's Office, May 12, 2009
previously indicated (Table 7). Interestingly, and perhaps indicating more serious conditions, these
low levels usually occurred in both the cooling loop (Segments
I and 2) and outside of the cooling
loop (Segments 3 and
4) in 2005 (Table 5).
In
Newton Lake, the most critical periods prior to 2005 occurred on 24 July, 1999, 25 July
and 7 August 2001, and 2 August 2002 (Tables 8). On two of the 2005 dates (28 June and 26 July),
water quality was worst than all other dates sampled during the eight-year sampling period except 24
July, 1999. At
90° F, 0% habitat with 3-ppm oxygen occurred on 24 July 1999 and on 26 July 2005;
but on 25 July 2001 and 28 June 2005, only 2% habitat was available to fish (Table 8). To put this
in perspective,
if the lake depth averaged 5 m, 2% of that depth would mean only 0.1 m of water was
available to the fish on that date. Fish kills occurred within three days of the 1999 and 200
I
sampling dates. All four segments are in the cooling loop in Newton Lake. Segments I and 2
(discharge arm) tend to have less desirable habitat during the summer months than Segments 3 and
4
(intake arm) (Table 6). It is likely that most of the fish killed during the periods of critical habitat
were located well inside the discharge
arm when the potentially fatal conditions began. If this were
not true, then the fish kills would have involved much higher numbers of fish within and among
species. Despite the very critical conditions prevalent in summer
2005, no fish kills were detected in
Newton Lake.
Water
Levels
Water levels in power-cooling reservoirs are typically lower than pool. Effects of lower water
levels
on fish species are dependent on the extent of aquatic macrophyte habitats lost. In Newton
Lake, six
of the seven worst habitat conditions occurred when water levels were at least 1.5 feet
below pool level (Figures 7 - 9). The seventh occurred in 1999,
just prior to the water levels
dropping to
2.0 feet below pool. However, since there have been several summer periods when water
7
levels were similar to the aforementioned dates (including 2005), effects of low water levels on fish
stress are unclear at this time. Water levels occasionally are greater than pool over extended periods.
No attempt has been made to determine the extent
of spillway mortality in Newton or Coffeen lakes.
Given the amount
of movement of largemouth bass exhibit throughout all seasons, it is likely that
some do escape
over the spillway.
In
Coffeen Lake, water levels fluctuate more than in Newton Lake. The levels have dipped to
over 3 feet below pool during four extended periods over the last eight years (Figures 10-12).
Examination
of the most severe habitat conditions does not show any indication that low water
levels promote the poor habitat conditions. As one would expect, those periods when water levels
were over pool level often occurred during late spring or early summer. Since the higher water levels
were infrequent, spillway mortality was not considered to be a threat to sport species in the lake.
FACTORS ASSOCIATED WITH FISH KILLS
In
every reservoir or body of water where fish exist, one can find dead fish over the course of
a summer or year. The deaths may have been natural or induced by extraordinary events. As we have
discussed in this and previous reports, excessive water temperatures alone rarely cause massive fish
kills.
In
most instances, there are other factors acting in concert with water temperatures to cause fish
kills.
In
reservoirs, prolonged calm, cloudy weather patterns during warm periods can cause oxygen
depletions that
result in fish kills of a larger magnitude. Characteristically, few fish species are
spared, but mortality among the species is dependent upon their tolerance to low levels
of dissolved
oxygen.
Such a weather pattern occurred during July, 1999 when fish kills occurred in Newton and
Coffeen lakes - as well as in ambient lakes such as East Fork Lake near Olney, Illinois. Personnel
from
SIU-C observed 121 largemouth bass and 8 dead or morbid channel catfish in Coffeen Lake
8
Electronic Filing - Received, Clerk's Office, May 12, 2009
(Table 9). In Newton Lake, 227 largemouth bass and 70 channel catfish were observed dead or
dying (Table
10).
Under
the high thermal loading parameters in Newton Lake, no differences in net primary
productivity
or chlorophyll were observed in July and August (1999) as compared to July and
August (1998). Some
of the fauna such as zooplankton, benthos number, benthos weight, and
phytomacrobenthos actually increased (Heidinger et al.
2000). Thus, the data did not suggest long-
term perturbation
of the primary biota in the lakes. Examination of the fish indices resulted in similar
conclusions.
The number
of largemouth bass that died in Coffeen Lake and Newton Lake in 1999, relative
to their abundance in the two lakes, indicated no significant long-term negative effects on the two
bass popUlations were likely. In Coffeen Lake, assuming that only
50% of the largemouth bass that
died were counted, then 242 bass died (0.22 per acre).
If there were 20 bass per acre in Coffeen
Lake
(1100 acres), then the death of242 bass represented only 1% of the population. Although we
have no recent creel data for Coffeen Lake, 242 bass is probably well below what is removed by
anglers each year. Also, to place the I % mortality due to the fish kill in perspective, the average
total annual mortality rate for largemouth bass in Coffeen Lake from
1997-2004 is approximately
42% (Brooks
2005). In Newton Lake, assuming 20 largemouth bass per acre (1,750 acres), there
were
35,000 bass in the lake before the kill. If anything, this was an underestimate, considering that
from
02116/98 through 12/31/98 the creel indicated that 60,187 bass were caught (Heidinger et al.
2002). In other words, if there were 35 ,000 bass in the lake, each bass on average was caught 1.7
times. Based on an estimate of 454 bass killed during the 1999 event and a population of 35,000
bass, the death of 454 (0.26 per acre) bass in Newton Lake would equal only 1 % of the population.
9
Again, to place the I
%
of dead bass in perspective, average total annual mortality for bass in Newton
Lake from 1997-2004 is approximately 57% .
The 1999 fish kills were likely induced by a combination
of elevated, discharge water
temperatures, prolonged periods
of relatively hot air temperatures (which reduced the cooling
capacity
of the lakes and increased water temperatures at most depths throughout the lakes), and
low levels
of dissolved oxygen due to atmospheric conditions (which also induced fish kills in local
ambient lakes). Habitat availability was extremely low for extended periods during late July 1999 in
both lakes (Heidinger et al.
2000). A combination of factors caused the 1999 fish kills; but the kills
were relatively insignificant to the sportfish populations.
Fish kills
of smaller magnitudes also occurred in the two reservoirs during the study. Those
kills were likely more directly associated with water mixing zone temperatures. Water currents
associated with power-cooling discharges cause the biota behavior to be more characteristic
of slow-
moving rivers than
of reservoirs. As a result, fish movement increases over that of ambient
reservoirs. The movement is, in large part, dictated by forage abundance and locality.
In
power-
cooling reservoirs, forage species often inhabits water temperatures near their thermal maximums
because their food supply is more abundant there.
If
a sudden pulse of lethally hot water is pushed
through, and some fish happen to be located
in a cove away from the main water flow, the fish can
be forced to stay in the cove until the slug
of hot water passes.
If
lethally hot water temperatures
persist in the main channel long enough, water temperatures in the coves will increase until they are
similar to those in the main channel. This phenomenon, described as eroded fish habitats, results in
smaller but more frequent fish kills such as occurred
in 200 I, 2002, and perhaps in Coffeen Lake in
August 2005.
10
Electronic Filing - Received, Clerk's Office, May 12, 2009
On July 10,2001 , in Coffeen Lake, 546 channel catfish (2-7 in TL), 513 Lepomis spp. (2-6 in
TL) and
65 largemouth bass (2-7 in TL) were estimated to have died (Table II). Mixing zone
surface water temperatures began a prolonged increase where mean temperatures were at least
!OO°F
on July 7 in 2001 (Heidinger and Brooks 2002). Prior to that date, although maximum water
temperatures had increased to over
100°F, minimum temperatures were low enough to provide the
fish with relief within a several-hour period. Minimum water temperatures increased to nearly
!OO°F
after July 7 and did not decrease until mid-August. As postulated earlier, the prolonged nature of the
high water temperatures after July 7 likely caused
an eroding of cove habitat in the discharge mixing
zone which resulted
in the July 10 fish kill. Mean water temperatures were also high to a depth on
m which was the depth at which dissolved oxygen was limiting at that time.
In Newton Lake on August 28,
2001, we estimated that 10,765 three-inch gizzard shad were
killed (Table
II). Again, maximum temperatures in the mixing zone prior to that time had been at
least as high as
on the day of the fish kill; but as in Coffeen Lake, Newton Lake mid-August water
temperatures were increasing from summer lows, and by August 28, the temperatures stabilized at
mean at over
100°F for several days. The prolonged high temperatures most likely caused fish
mortality in a relatively small cove where the fish's thermal refuge was broken down
..
Two additional fish kills detected during this study; that were likely a result of eroding
habitat.
One occuned in Coffeen Lake during late June and early July 2002, and the other just prior
to 2 August
2005. In 2002, Forty two largemouth bass, 64 striped bass, and small amounts of five
other species were found dead by
SIU-C Personnel during the period (Table 12). In 2005, 19
channel catfish were discovered near the water intake. The fish were too decomposed to takes
measurements, but were estimated to be about
12 to IS inches TL. The abiotic circumstances in both
II
Electronic Filing - Received, Clerk's Office, May 12, 2009
years were very similar to the previous two fish kills in that water temperatures were increasing from
summer lows, and the temperatures increased until late June (Heidinger and Brooks
2003).
It
is likely these fish kills were associated with eroding of thermal refuge areas because, in
Newton Lake, one particular area near the discharge mixing zone that draws many fish
is the cove
that receives spillage from the small ash pond. Water pouring
in from the ash pond is generally
cooler than the surrounding lake, and this cove typically is
"stacked" with fish. This could be an area
of concern if the water coming into the cove from the ash pond is warm and has relatively little
oxygen at the same time when the surrounding lake water suddenly becomes very hot with low
dissolved oxygen. Alternatively,
if water discharge temperatures are not excessive, there are many
small coves in the upper portion
of Segment 1 that fish could use and eventually get trapped if the
discharge water became suddenly hot and remained hot for extended periods.
Coffeen Lake also has
cove habitats in the discharge area where fish could be trapped.
In particular, there is a cove located
immediately adjacent to the discharge area where fish could easily congregate during less severe
discharge temperatures and get trapped during a sudden increase
of temperatures.
The magnitude
of kills associated with habitat erosion should be relatively small.
Identification
of particularly suspect areas may be possible, but we are not certain at this time of
whether the problem can be eradicated. We would need more information concerning fish use of the
habitat at various water temperatures to further address this issue.
Beyond the previously described kills, very small numbers
of dead fish have been observed
by
SIU-C personnel each year. The causes of death for these fish may be natural or associated with
angling.
In
waters where fishing is popular, fish can be lethally hooked and released or stressed from
capture and subsequent handling beyond their ability to recover. Stress-induced fish mortality from
angling is primarily dependent upon water temperatures that, when relatively high, will increase the
12
likelihood of stress-induced death. The extent of these fish kills are further dependent upon fish
species, the
number of fish hooked, where the fish were hooked, depth the fish were residing when
hooked, and handling time. Fishing tournaments can cause higher numbers
of stress related deaths
not only because
of the sheer numbers of fish caught, but also because of the additional stress the
fish must endure from time spent in anglers' live wells and the extra handling during the weigh-in
process. Fish killed by angling do not usually die
at the time of capture or release; the mortality is
delayed. The amount
of delay is dependent upon the intensity of trauma inflicted on the fish during
capture, time in captivity, or conditions
of release.
In
2000, only four largemouth bass and two channel catfish were observed dead or dying in
Coffeen Lake. In Newton Lake only two dead largemouth bass and two dead gizzard shad were
observed in
2000. During 200 I in Coffeen Lake, except for the kill on July 7, 200 I, only one dead
striped bass, two white crappie, one largemouth bass and two channel catfish were observed by
SIU
personnel. In Newton Lake during 2001, only 10 dead fish were observed except for the kill of shad
on August 28,2001. Anglers reported several dead largemouth bass on August 21, 2002, but an
exploratory visit to Newton Lake on the following day did not confirm this. We observed only two
other dead channel catfish and three largemouth bass during
2002. However, due to the timing of the
funding, we did not begin regular monitoring
of the lakes until August. Throughout 2003, we only
observed ten dead or dying fish in Newton Lake; and only two were observed in
2004. In both cases
in
2004, the dead largemouth bass were observed at the west boat ramp. Only seven fish were
observed dead
or dying in Coffeen Lake during 2003, and three channel catfish were found dead in
2004. Since None of the deaths in 2004 were suspected to have resulted from water temperatures or
dissolved oxygen.
13
SUMMARY
The data collected since 2000 represents a small, but specific portion of the data collected
during 1997 through 1999. The high cost
of field data collection, laboratory work, and data analyses
is often prohibitive to researchers attempting to answer field-related questions concerning fish
populations and the interaction between abiotic and biotic entities. In order to circumvent the
problem
of costs, biologists attempt to examine trends in conjunction with traditional indices. Water
quality data collected since
2000 was used as a continuation of the data previously collected to
examine habitat quality.
Mean monthly water temperatures in Newton Lake during the annual study periods
were, for
the most part, cooler following 1999. In Coffeen Lake, the temperatures were actually warmer in
2003,2004, and 2005 than in 1999. However, in both Newton Lake and Coffeen Lake, maximum
hourly water temperatures at the outer edge
of the mixing zone in June, July and August were cooler
in every year since 1999. Weather patterns (and not water temperatures) in 2000 - 2005 likely were
responsible the lack
of fish kills versus 1999. In 1999, temperatures remained very hot for a number
of weeks. In 2000 - 2004, very hot weather was followed for a few days by cooler weather, and in
some cases, heavy rain events. These rain events are reflected in the summer water levels of Newton
Lake through
2004. Weather patterns were mild through most of summer 2003 and 2004, and at
least in Newton Lake, water temperatures were somewhat indicative
of the weather. During 2005,
the lack of extended periods of cloud cover most likely spared the lakes of fish kills despite the high
water temperatures.
It
is likely that an extended period of cloud cover would have reduced the
already critically limited habitat and caused fish kill as was witnessed in 1999.
14
The higher 2003 - 2004 mean mixing zone, surface water temperatures in Coffeen Lake
reflected the stable increase
in power production in that power plant. During 2005, the same habitat
quality that persisted in Newton Lake due
to ambient conditions were present in Coffeen Lake,
except water temperatures were warmer
in Coffeen Lake. Based on the water quality and the fact
that a few fish succumbed to the water conditions, it is likely that adequate habitat in Coffeen Lake
was very nearly exhausted during several periods
in 2005. Based on water quality data, a timely
period
of cloud cover would most likely have induced one or more fish kills. However, given the
very warm summer ambient temperatures,
It
is just as likely that the same could have been reported
for unheated lakes in the region since there was very little precipitation.
In Coffeen Lake,
temperature /oxygen profiles have indicated that cemetery cove and the area between the railroad
bridge and the intake canal could serve as refuges for at least part
of the fish community during
heavy thermal loading and/or low oxygen events. However, during extremely critical periods, even
those areas would likely have critically low quality habitat.
In power-cooling ponds, a second condition that can contribute to fish kills is an eroding
refuge. A sudden increase
of power output and concurring increase in water discharge temperatures
can cause some fish to move to an immediate, nearby cove for refuge.
If that refuge becomes
secluded from inhabitable water by a significant distance (such as is likely
if it would occur nearer
the discharge mixing zone
in either lake), then the refuge can be depleted over time from
continuously high discharge temperatures. Fish inhabiting the cove will eventually succumb to heat
ifthey must travel too far in find cooler water. In such instances, the fish kill would likely be
relatively small since not all fish would react
to the sudden increase in temperatures in the same
manner (i.e. some would move to the cooler end
of the lakes at the time increased temperatures were
15
Electronic Filing - Received, Clerk's Office, May 12, 2009
initially perceived). Based on information collected since 1997, this entrapment likely occurred on
three occasions in the two lakes; the second highest frequency in terms
of fish kills since 1997.
Low-level angler mortality is likely the most frequently cited kill factor. When epilimnion
temperatures are very hot, detrimental effects
of stress induced from increased activity and
consequential increase
in lactic acid from hooking and handling by anglers is compounded and likely
causes incidental mortality that is witnessed every year in both lakes. The number
of dead or
moribund fish observed at specific areas frequented or recently vacated by anglers is usually small,
but witnessed
or not, this type of mortality most certainly occurs throughout summer. During the
once-per-week sampling effort completed during summer
2000,2003, and 2004 very few dead or
dying fish were observed in either Newton Lake or Coffeen Lake. The few largemouth bass
observed were found near boat docks and popular angler fishing areas. Since, in
2000, a number of
boats were present at the dock when bass were observed, the bass may have been caught in a club
tournament and released at the dock.
References
Brooks, R. C.
2005. Ameren Newton and Coffeen Lakes Project. Report to Ameren covering
research from
5/0212003-11130/2003 by Fisheries and Illinois Aquaculture Center, Southern Illinois
University at Carbondale.
Heidinger,
R. C., R. Sheehan, and R. Brooks. 2000. Ameren Newton Lake Project. Report to
Ameren covering research from 8/15/97-8/30/99
by Fisheries Research Laboratory and Illinois
Aquaculture Center, Southern Illinois University at Carbondale. Vol. I and II.
Heidinger, R. C.,
R. Sheehan, and R. Brooks. 200\. Ameren Newton and Coffeen Lakes Research
and Monitoring
Project. Report to Ameren covering research from
1104/2000-12/30/2000
by
Fisheries and Illinois Aquaculture Center, Southern Illinois University at Carbondale.
Heidinger, R. C. and
R. Brooks. 2003. Ameren Newton and Coffeen Lakes Project. Report to
Ameren covering research from 4/06/2002-10/3112002 by Fisheries and Jllinois Aquaculture Center,
Southern Illinois University at Carbondale.
16
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table I. Ameren Project's basic sampling schedule for data collected concurrently from 1997 through 2005.
Oct
Nov
Dec
4 samples
per date: midway between
segment borders;
112 meter intervals to
Temo/DO
0
0
0
0
0
4
4
4
4
0
0
o
I
bottom.
Coffeen Lake
I
4 samples per date: midway between
segment borders;
112 meter intervals to
TemEIDO
0
0
0
0
0
4
4
4
4
0
0
o
I
bottom
1
/ Starting dates for sampling were contingent upon grant approval.
17
Table 2. Comparison of summer and fall mean monthly temperatures (OF) at the outer edge of the discharge
. .
,
mlxmg zones.
Year
Month
1997
1998
1999
2000
2001"
2002
2003
2004
2005
Newton Lake
May
89.8
88.4
82.5
91.7
84.8
84.6
93.2
91.4
June
95.9
96.3
97.0
94.2
94.5
97.4
90.8
96.7
99.0
July
101.7
101.7
104.1
98.0
100.1
99.1
96.9
96.8
99.
3
August
96.
2
102.3
99.7
97.5
99.4
96.6
98.3
95.3
99.
3
September
94.9
94.6
93.1
92.8
92.9
94.0
92.7
93.3
97.7
October
86.3
87.5
85.4
84.9
84.8
86.3
84.8
84.2
86.9
Coffeen Lake
May
77.7
90.
8
86.4
88.0
84.7
83.5
86.3
88.4
83.7
June
87.9
94.9
90.5
93.9
86.6
82.2
96.
7
100.
8
99.9
July
100.
8
102.4
103.
9
99.2
101.3
96.9
104.3
8
105.0
a
104.2
August
98.7
100.1
101.5
99.2
102.4
100.4
102.2
105.6'
102.6
September
88.7
96.1
94.8
93.5
93.2
100.4
97.2
102.9
100.5
October
81.6
79.9
83.6
83.4
64.2
99.1
81.8
85.3
84.
2
a
t Hourly temperature data was provided by Ameren except for Coffeen Lake in 2001 and
temperatures with superscripts in 2003 and 2004 which were obtained from
SIU temperature
recorders.
18
Table 3. Hourly surface temperatures in 1999 that exceeded 111°F at the outer edge of
Newton Lake discharge mixing zone. Within a year total hours above 111°F were not to
exceed 110°F (3% oftolal number of hours during the period June-October, 3,672 hours).
Surface
Surface
Surface
Date
Time
temp.
Date
Time
temp.
Date
Time
temp.
7/22/1999
13:34:28 111.22
7/24/1999
20:34:28 111.47
7/28/1999 0:34:28
7122/1999
14:34:28 111.39
7/2411999
21:34:28 111.18
7/29/1999 12:34:28
7/22/1999
15:34:28 111.48
7124/1999
22:34:28 111.01
7129/1999 \3:34:28
7/22/1999
16:34:28 111.65
7/25/1999
13 :34:28 111.53
7/29/1999 14:34:28
7/2211999
17:34:28 111.84
7/25/1999
14:34:28 111.5
7/29/1999 15:34:28
7/2211999
18:34:28 112.03
7/25/1999
15:34:28 111.71
7/29/1999 16:34:28
7/22/1999
19:34:28 112.09
7/25/1999
16:34:29 111.77
7/2911999 17:34:28
7/2211999
20:34:29 112.06
7/25/1999
17:34:28 112.03
7/29/1999 18:34:28
7/2211999
21:34:28 111.93
7/25/1999
18:34:28 112.\3
7129/1999 19:34:28
7/2211999
22:34:28 111.85
7125/1999
19:34:28 112.
06
7/2911999 20:34:
28
7/2211999
23:34:28 111.74
7/25/1999
20:34:28 112.11
7/29/1999 21:34:28
7/23/1999
0:34:28 111.48
7/2511999
21:34:28 112.44
7/29/1999 22:34:28
712311999
10:34:28 111.59
7/25/1999
22:34:28 112.53
7129/1999 23:34:28
7/2311999
11 :34:29 112.01
7/25/1999
23:34:28 112.32
7/30/1999 0:34:28
7/23/1999
12:34:28 112.32
7/26/1999
11:34:28 111.15
7/30/1999 11:34:28
7/23/1999
\3:34:28 112.53
7/26/1999
12:18:32 111.28
7/30/1999 12:34:28
7/2311999
14:34:28 111.93
7/2611999
16:34:28 111.35
7/3011999 14:34:28
7/23/1999
15:34:28 112.06
7/26/1999
17:34:28 112.57
7130/1999 15:34:28
7/23/1999
16:34:28 112.05
7/2611999
18:34:28 112.46
7/30/1999 16:34:28
7/23/1999
17:34:28 111.98
7/26/1999
19:34:28 112.47
7/30/1999 17:34:28
7/23/1999
18:34:28 111.84
7/2611999
20:34:29 112.34
7/3011999 18:34:28
7/2311999
19:34:28 111.77
7/26/1999
21:34:28 112.31
7/30/1999 19:34:28
7/2311999
20:34:28 111.73
7126/1999
22:34:28 112.33
7/30/1999 20:34:28
712311999
21:34:28 111.79
7126/1999
23:34:29 112.29
7/3011999 21:34:28
7/23/1999
22:34:28 111.75
7/27/1999
0:34:28 112.23
7/30/1999 22:34:28
7/23/1999
23:34:28 111.49
7/27/1999
14:34:28 111.37
7130/1999 23:34:28
7124/1999
11:34:28111.54
7/27/1999
15:34:28111.54
7/3111999 0:34:28
7/24/1999
12:34:28 111.96
7/27/1999
16:34:28 111.71
7/3111999 1
:
34:28
7/24/1999
13:34:28 112.18
7/27/1999
17:34:28 111.82
7/3111999 2:34:28
7/2411999
14:34:28 112.27
7/27/1999
18:34:28 111.78
7/31/1999 3:
34:28
7/2411999
15:34:28 112.09
7/2711999
19:34:28 111.57
7/24/1999
16:34:28 112.05
7/2711999
20:34:29 111.59
7124/1999
17:34:28 111.77
7/2711999
21:34 :
28 111.7
7/24/1999
18:34:28 111.7
7/27/1999
22:34:28 111.71
7/24/1999
19:34:28 111.75
7/27/1999
23 :
34:28 111.6
111.36
111.33
Ill.
79
111.99
111.87
111.99
112.31
111.43
112.61
112.
85
1\3
112.39
112.
85
112.79
111.81
111.85
112.99
113.
31
113.27
113.35
113.37
113.51
113.56
113.63
113.
66
113.64
113.48
Ill.
98
112.8
112.
67
TOTAL HOURS 100
19
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 4. Hourly surface temperatures in 1999 that exceeded 112°F at the outer edge of
Coffeen Lake discharge mixing zone. Within a year total hours above 112°F were not to
exceed 132
(3% of total number of hours during the period May - October, 4,416 hours).
Surface
Surface
Surface
Date
Time
teml2'
Date
Time
teml2.
Date
Time
teml2'
712311999 16:00:00
112
7/28/1999
16:00:00
112.95
7/3111999
14:00:00 113.02
7/2311999
17:00:00
112.5
7/28/1999
17:00:00 113.17
7/3111999
15:00:00
112.88
712311999
18:00:00
112.21
7/28/1999
18:00:
00
113.86
7/3111999
18:00:00 113.29
712311999 19:00:00
112.59 7/28/1999 19:00:00
113.91
7/3111999
19:00:00 113.83
7/23/1999 20:00:00
112.16 712811999 20:00:00
113.58
7/3111999
20:
00:00
114.09
7/2511999 14:00:00 112.09 7/28/2002
21 :00:00
113.37
7/3111999
21 :00:00
114.2
7/25/1999 15:00:00
112.72
7/28/2002 22:00:00
112.17
7/3111999
22:00:00 113.68
7/2511999 16:00:00
112.72
7/29/1999 13 :
00 :
00
112.89
7/31/1999
23:00:00
112.83
712511999 17:00:00
112.43
7/29/1999 14:00:00
114.24
9/7/1999
14:00:
00 120.27
7/25/1999 18:00:00
113.34
7/29/1999 15:00:00
114.04 9/7/1999
15:00:00 120.08
7/2511999 19:00:00
112.95
7129/1999 16:00:00
114.14 9/7/1999 16:00:00 122.49
712511999
20 :
00:00
112.
2
7/2911999 17:
00:00
114.56
712511999
23 :00:00 112.8
7129/1999 18:00:00
114.67
7/26/1999 12:00:00
113.01
7/29/1999 19:00:
00
114.19
7
/2611999
13 :00:00
113.48
7/29/1999 20:00:00
114.21
7126/1999 14:00:00
113.75
7/29/1999
21 :
00:
00
113.6
7/26/1999 15 :
00:00
113.87
7129/1999 22:00:00
114
7/2611999 16:00:00
112.19
7/29/1999 23:00:00
113.89
7/2611999 18:00:00
112.36
7/30/1999
1:00:00 113.24
7/26/1999 19:00:00
113.4
7/30/1999
2:00:00
113.9
7/26/1999 20 :
00:00
114.35
7/30/1999
3:
00:
00 113.11
7/26/1999 21:00:00
112.96
7/30/1999
4:00:00 112.34
7/2611999 22:00:00
114.17
7/30/1999 12:00:00
112.74
7
/2611999 23:00:00
113.93
7
/30/1999
13 :00:00 114.
2
7127/1999
0:
00:00
112.9
7/30/1999 14:00:
00
114.3
7/27/1999 14:00:00
113.62
7/30/1999 15:00 :
00
114.65
7/2711999 15:00:00
113.22
7/30/1999 16:00:00
114.88
7
/27/1999 16:
00:00
113.81
7/30/1999 17:00:00
115.05
7/27/1999 17:00:
00
113 .31
7/30/1999 18:00:
00
115.39
7/27/1999 18:00:00
113.68
7
/3011999 19:00:00
114.06
7/27/1999 19:
00:00
113.43
7/30/1999 20:00:00
113.44
7
/27/1999 20 :
00:00
113 .81
7/30/1999
21 :00:00 113.52
7127/1999
21 :00:00
114
7/30/1999 22:00 :
00
112.95
7
/27/1999 22:00:00
113.29
7
/3011999
23 :00:00
113.64
7/2711999 23:00:00
112.91
7/3111999
1:00:00 112.54
7/28/1
999 15 :00:00
112.41 7/31/1 999 2:00:00 112.31
Total Hours
83
20
Table 5. Percent habitat among segments at various temperatures and oxygen ranges in Coffeen Lake during
June-September
2005. Profiles were taken from 2:00 p.
m. to 7:00 p.
m.
Date
06/03/05
06/03/05
06/03/05
06/03/05
06/
08/05
06/08/05
06/08/05
06/
08/05
06/16/05
06/16/05
06/
16/05
06/16/05
06/21/05
06/21105
06/
21105
06/21/05
061281
05
06/28/
05
06/28/05
06/28/05
I ppm
Temperature
Segment
(OF)
I
2
3
4
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
14 18 29 27
17 18 29 27
17 18 29 27
17 18 29 27
10 9
8
15
10 II 25 26
10 17 25 26
10 17 25 26
8
16
30 28
12 21 30 30
18 21 30 30
18 21 30 30
5
8
14 12
7
II 20 21
8
\3 27 23
8
18 27 29
o 0
0
0
o 3
4
0
4
6
4
2
12 12 17 16
Dissolved Oxygen
2 ppm
3 ppm
4 ppm
Segment
I
234
II 14 29 25
15 14 29 25
15 14 29 25
15 14 29 25
10
8
6
10
10
9
23 20
10 15 23 20
10
15 23 20
6
15 30 28
II 19 30 30
16 19 30 30
16 19 30 30
4
7
14 12
6
9
20 21
7
12 27 23
7
17 27 29
o
0
0
0
o 140
444 2
12 10 17 16
Segment
Segment
I
2
3 4
I
234
10 13 27 23
8 12 21 23
\3 13 27 23
12 12 21 23
13 \3 27 23
12 12 21 23
\3 \3 27 23
1
2 12 21 23
9 7
9 8
9 14
9 14
4
10
21 20
21 20
21 20
2 13 29 28
6 18 29 30
11
18 29 30
11 18 29 30
4
5
14 12
6
8
20 21
7
11
27 23
7 15 27 29
9
7
2
8
9
8
19 18
9 14 19 18
9 14 19 18
2 13 29 28
6 18 29 30
11 18 29 30
11 18 29 30
2
5
4
7
10
9
16 19
6
9
23
21
6 14 23 27
00000000
o 0
3
3
10 9
4
0
4
0
17 14
o 0
I
3
9 9
2
0
2
0
15 14
2 1
Table 5. Continued.
Date
07/07/05
07/07/
05
07/07/05
07/07/05
07/13/05
07113/05
07113105
07113/05
07/20
1
05
07120
1
05
07120105
07/20/05
07/27/05
07/27/05
07/27/
05
07
/27/05
08/02/05
08/02/05
08/02/05
08/02/05
1 ppm
Temperature
Segment
(OF)
1
2
3
4
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
o 0 0 0
3
6
7
2
6
13 29 23
10 21 29 29
o 3
4
0
o 12 29 30
3 24 29 30
7 24 29 30
o 0
1
0
3
6
8
2
9
9
10 14
11 13 30 27
000 0
o 0
0
0
o 3 29 29
10 21 29 29
000 0
o 0
4
0
2
3
7
4
8
8
29 17
Dissolved Oxygen
2 ppm
3 ppm
4 ppm
Segment
Segment
Segment
12341234
1 2
3
4
o 000
o 6
7
2
2
13 29 23
5
21 29 29
o
0
2
0
o 9 27 30
o 21 27 30
4
21 27 30
o 0
0
0
3
4
7
2
9
7
9
14
11
12 29 27
o 0
0
0
o 0
0
0
o
1 25 29
10 20 25 29
o 0
0
0
o 0
4
0
o 3
7
2
6
8
29 IS
00000000
04720170
o 12 29 23
0
9
29 21
3 20 29 29
2 17 29 27
o 0
2
0
0
o 4 27 26
0
o 15 27 26
0
4 15 27 26
2
o 0
17 IS
17 IS
17 IS
00000000
23200120
8
6
4
12
5
4
4
12
9 10 25 25
6
9
25 25
00000000
00000000
o
1 25 29
0
1 23 29
6 20 25 29
5 20 23 29
00000000
o 0
4
0
o 0
0
0
o 0
7
2
o 0
0
2
5
6
29
15
2
6
23 15
22
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 5. Continued.
Date
08/09/05
08/09/05
08/09/05
08/09/05
08118105
08118/05
08118/05
08118/05
08/23/05
08/23/05
08/23/05
08/23/05
08/31/05
08/31/05
08/31/05
08/31105
09/08/05
09/08/05
09/08/05
09/08/05
1 ppm
Temperature
Segment
(OF)
1
2
3
4
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
o 0
0
0
033 0
10
10 10 12
11 15 30 29
o 3
0
0
8
14
8
13
11 25 29 29
11 25 29 29
o 0
0
0
o 6
I
1
7
12 30 30
8 22 30 30
o 12 30 19
9
26 30 30
9
26 30 30
13 26 30 30
3
9
8
4
11 15 20 22
12 22
30 30
14 25 30 30
Dissolved Oxygen
2 ppm
3 ppm
4 ppm
Segment
Segment
Segment
123412341234
000 0
002 0
6
6
9
12
8
10 29 29
020 0
5
12
8
13
8
24 29 29
8
24 29 29
o 0
0
0
o 5
1
1
5
11 30 30
7
21 30 30
o 11 30 19
9
24 30 30
9
24 30 30
13 24 30 30
287 4
9
14 19 22
11 21 29 30
12 24 29 30
00000000
00200020
56992499
6 10 29 27
3
9
29 27
00000000
o 11
8
13
0
8
8
13
o 22 29 29
0 19 29 29
o 22 29 29
0 19 29 29
o 0
0
0
o 0
0
0
o 3
1
1
o 2
1
1
3
9
30 30
2
8
30 30
5 19 30 30
3 18 30 30
o 9
30 19
0
9
29 19
7 23 30 30
5 23 29 30
7 23 30 30
5 23 29 30
11 23 30 30
9 23 29 30
o 3
7
3
8
9
19 20
9 16 29 29
11 19 29 29
o 2
7
3
8
8
19 20
9 14 29 29
11 18 29 29
23
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 5. Continued.
Dissolved
Oxxgen
I EEm
2EEm
3 ppm
4PEm
Temperature
Segment
Segment
Segment
Segment
Date
eF)
1 2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
09114/05
87
8
9
5
3
3
7
4
2
1 0
2
0
1 0
2
0
09/14/05
90
18 20
30
30
9
18
29 29
4
11 27 27
1 10
27
27
09/14/05
93
23
30 30
30
14 29
29
29
9
22 27 27
6 20
27
27
09/14/05
96
25
30 30 30
16 29
29
29
11 22 27 27
8 20 27
27
09/21/05
87
10 17
8
15
5
17
8
15
0
17
8
15
0 14
8
13
09/21105
90
11 23 30 29
6 23 30 29
2 23
30 29
0 20 30
27
09/21105
93
11 25
30
29
6
25 30 29
2
25 30 29
0
22 30
27
09/21105
96
13 25
30
29
8 25
30 29
3
25 30 29
2
22 30
27
09/29/05
87
18 26
30
30
13 26 30 30
6 26
30 30
0 24 30
30
09/29105
90
19 30 30 30
14 30 30 30
8 30 30
30
2 28 30
30
09/29105
93
21
30 30 30
16
30 30 30
10 30 30 30
3
28 30
30
09/29105
96
23
30 30 30
18
30 30 30
12 30
30 30
6
28 30
30
24
Table 6. Percent habitat among segments at various temperatures and oxygen ranges in Newton Lake during JW1e-September
2005. Profiles were taken from 12:00 p.m. to 6:30 p.m.
Date
06/02/05
06/02/05
06/02/05
06/02/05
06/07/05
06/07/05
06/07/05
06/07/05
06/14/05
06114105
06/14/05
06114105
06/21105
06121105
06121105
06/21105
06128/05
06/28/05
06/28/05
06/28/05
Dissolved Oxygen
1 ppm
2 ppm
3 ppm
4 ppm
Temperature
Segment
Segment
Segment
Segment
(OF) 1234123412341234
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
15
29
29
29
8
II
19
27
18
19
27
18
19
27
18
19
27
8
\3
30
8
8
19
30
8
10
19
30
19
17
19
30
o
o
4
8
6
16
30
6
16
30
10
16
30
19
16
30
o
6
II
27
4
8
21
27
11
12
21
27
25
17
21
27
o
4
8
8
023
249
2
14
29
10
14
29
15
10
19
24
29
16
19
24
29
16 19
24
29
16
19
24
8
8
11
30
8
8
17
30
8
10
17
30
19
17
17
30
o
2
14
30
o
2
14
30
4
6
14
30
8
15
14
30
o
4
9
27
o
6
19
27
8
10
19
27
21
15
19
27
o
0
0
0
4
2
2
6
8
2
12
26
8
10 12
26
11
10
25
16
25
16
25
16
18
22
18
22
18
22
18
22
o
4
11
30
o
4
17
30
o
6
17
30
II
13
17
30
o
0
14
30
o
0
14
30
4
4
14
30
8
\3
14
30
11
8
18
19
25
14
18
19
25
14
18
19
25
14
18
19
o
4
9
30
o
4
15
30
o
6
15
30
11
\3
15
30
o
0
13
30
o
0
13
30
o
4
\3
30
4
\3
13
30
o
4
9
27
0
2
7
27
o
6
19
27
0
4
17
27
8
10
19
27
8
8
17
27
21
15
19
27
21
\3
17
27
o
o
4
4
o
0
0
o
0
6
o
10 26
8
10
26
o
0
0
0
o
0
0
3
4
0
10
23
4
8
10
23
25
Table 6 Continued
I ppm
Temperature
Segment
Date
07/05/05
07105/05
07/05/05
07/05/05
07112/05
07112/05
07/12/05
07112105
07119/05
07119/05
07119/05
07/19/05
07/26/05
07/26/05
07126/05
07126/05
08/02/05
08/02/05
08/02/05
08/02/05
(O
F)
I
2
3
4
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
o
2
2
0
o
2
20
30
3
9
20
30
22
18
20
30
o
2
22
30
o
14
22
30
o
25
22
30
20
25
22
30
o
o
4
4
o
o
o
o
o
o
o
5
4
4
0
7
15
25
9
19
30
15
22
30
000
000
o
30
29
2
30
29
000
o
6
17
5
11
30
12
18
30
Dissolved Oxygen
2 ppm
3 ppm
4 ppm
Segment
Segment
Segment
I
2
3
4
I
2
3
4
1
234
o
0
0
0
o
0
0
0
o
0
0
0
o
0
18
29
o
0
18
29
o
0
18
29
o
7
18
29
o
7
18
29
o
5
18 29
19
15
18
29
19
15
18
29
19
13
18
29
o
0 22
29
o
0
20
22
o
0
18
12
o
9
22
29
0
5
20
22
o
0
18
12
o
20 22
29
0
15
20
22
o
6
18
12
20
20 22
29
20
15
20
22
9
6
18
12
o
2
2
0
o
0
2
0
o
0
2
0
o
4
13
25
o
2
13
25
o
2
13
25
4
7
17
30
4
4
17
30
o
4
17
30
4
13 20
30
4
11
20
30
o
11
20
30
o
0
0
0
o
0
0
0
o
0
0
0
o
0
0
0
o
0
0
0
o
0
0
0
o
0
30
29
o
0
30
26
o
0
30
24
o
0
30
29
o
0
30
26
o
0
30
24
o
0
0
0
o
0
0
0
o
0
0
0
o
0
6
15
o
0
4
15
o
0
4
15
o
2
II
29
o
2
10 29
o
2
10 29
5
9
18
29
5
9
16
29
5
9
16
29
26
Table 6. Continued.
1
ppm
Temperature
Segment
Date
08/09/05
08/09/05
08/09/05
08/09/05
08/
16
/05
08/16/05
08/16/05
08/16/05
08/23/05
08/23/05
08/23/05
08/23/05
08/31105
08/31105
08/31/05
08/31105
09/08/05
09/08/05
09/08/05
09/08/05
(OF)
1
2
3
4
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
87
90
93
96
o
o
o
4
o
o
9
35
o
o
o
28
o
o
3
8
o
o
7
7
o
o
5
14
o
9
42
42
o
5
22
22
2
6
12
19
9
II
13
?"
_J
o
0
8
\3
16
30
21
30
4
15
52
59
52
59
52
59
o
22
25
30
25
30
25
30
17
30
30
30
30
30
30
30
II
8
19
30
26
30
26
30
Dissolved Oxygen
2 ppm
3 ppm
Segment
Segment
1
2
3
4
1
2
3
4
o
o
o
4
o
o
9
35
o
o
o
28
o
o
3
8
o
o
7
7
o
0
0
o
8
13
2
16
30
12
21
30
o
0
15
9
49
59
42
49
59
42
49
59
o
0
22
5
23
30
22
23
30
22
23
30
2
16
30
4
29
30
10
29
30
17
29
30
4
8
8
7
15
30
9
22
30
19
22
30
o
o
o
4
o
o
9
35
o
o
o
28
o
o
3
8
o
o
4
4
o
o
2
12
o
4
38
38
o
o
18
18
o
2
8
15
o
o
2
12
o
0
4
13
12
30
17
30
o
15
49
59
49
59
49
59
o 22
23
30
23
30
23
30
16
30
29
30
29
30
29
30
6
7
13
29
20
29
20
29
4 ppm
Segment
1
2
3
4
o
o
o
o
o
o
9
35
o
o
o
28
o
o
3
8
o
o
o
o
000
o
2
11
o
10 29
9
15
29
o
0
15
o
45
59
34
45
59
34
45
59
o
0
20
o
23
29
18
23
29
18
23
29
o
14 29
o 27
29
6
27
29
13
27
29
047
o
II
29
2
18
29
12
18
29
27
lab)!:: 6 CllDliDll!::d
Dissolved Oxygen
1 EEm
2EEm
3 Epm
4Epm
Temperature
Segment
Segment
Segment
Segment
Date
(OF)
1
2
3
4
I
2
3
4
1
2
3
4
1
2
3
4
09/14/05
87
0
13
29
30
0
2
28
29
0
0
24
29
0
0
24
29
09/14/05
90
0
15
30
30
0
5
29
29
0
2
25
29
0
0
25
29
09114105
93
0
20
30
30
0
9
29
29
0
7
25
29
0
5
25
29
09114/05
96
30
30
30
30
30
20
29
29
28
18
25
29
28
15
25
29
09/22/05
87
0
0
30
30
0
0
28
28
0
0
24
28
0
0
24
28
09/22/05
90
0
2
30
30
0
2
28
28
0
2
24
28
0
0
24
28
09/22/05
93
3
5
30
30
3
5
28
28
3
5
24
28
0
3
24
28
09/22/05
96
20
14
30
30
20
14
28
28
20
14
24
28
17
12
24
28
09/29/05
87
0
22
30
30
0
20 30
30
0
20
30
30
0
18
30
30
09/29/05
90
30
22
30
30
30
20
30
30
30
20
30
30
30
18
30
30
09/29/05
93
30
22
30
30
30
20 30
30
30
20
30
30
30
18
30
30
09/29/05
96
30
22
30
30
30
20 30
30
30
20
30
30
30
18
30
30
28
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 7. Comparison of the three days in Coffeen Lake during 1998 through 2005 that had the worst habitat conditions.
Comparisons are made at 3 ppm dissolved for 4 temperatures.
Percent habitats were averaged for Segments land 2. Percentages for
Segments 3 and 4 are given in parentheses when the segments were sampled from
2000 through 2005.
Temperature
1998
1999
2000
(OF)
3-Jul
24-Jul
28-Aug
23-Jul
6-Aug
19-Aug
18-Jul
IS-Aug
4-Sep
87
0
0
0
0
0
0
0(0)
3 (9)
0(0)
90
2
0
5
0
0
33
5 (15)
39 (78)
3 (4)
93
14
16
24
10
21
42
30 (100)
44 (99)
24 (83)
96
34
41
36
27
25
47
42
(100)
50 (99)
43 (83)
2001
2QQ2
a
2003
10-Jul
24-Jul
8-Aug
6-Jul
8-Jul
I-Aug
8-Jul
20-Aug
27-Aug
87
0(14)
0(7)
0(0)
0(0)
0(0)
0(0)
0(0)
0(0)
0(4)
90
17(21)
2 (20)
0(0)
0(0)
0(0)
3 (13)
0(4)
0(11)
3 (15)
93
29 (59)
18(44)
0(7)
3 (10)
0(24)
24 (52)
12 (54)
7 (84)
21 (54)
96
33 (62)
25 (90)
21 (40)
42 (83)
17 (80)
31 (82)
25 (88)
30 (96)
29 (96)
29
Table 7. Continued.
Temperature
2004
2005
n)
16-Jun
30-Jun
7-Jul
28-Jun
27-Jul
2-Aug
87
0(4)
2 (II)
0(24)
0(0)
0(0)
0(0)
90
9 (69)
10 (38)
33 (85)
0(2)
0(0)
0(2)
93
27 (87)
14 (77)
35 (85)
3 (2)
0(27)
0(5)
96
31 (87)
21 (87)
42 (85)
10 (16)
\3
~27)
6 (22)
af In 2002, due to the timing of funding, temperature, oxygen and depth profiles were not formally started until August. However,
profiles were taken on July 6 and July 8,
2002.
30
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 8. Comparison of the three days in Newton Lake during 1998 through 2005 that had the worst habitat conditions.
Comparisons are made at 3 ppm dissolved for 4 temperatures. Percent habitats were averaged in all four segments.
Temperature
1998
1999
2000
(OF)
26-Jun
ll-Jul
24-Aug
24-JlIl
5-Aug
18-Aug
13-Jul
28-Jul
I-Sep
87
0
0
0
0
1
31
2
31
4
90
18
22
29
0
21
41
15
41
21
93
29
29
40
7
44
42
30
46
3S
96
33
29
43
32
48
52
40
57
44
2001
2002'
2003
18-Jun
25-Jul
7-Aug
2-Alig
21-Aug
29-Aug
2-Jul
9-Jul
28-AuQ:
87
"
~
0
0
0
34
47
15
0
2
90
37
2
9
9
53
57
26
31
28
93
44
24
26
27
72
69
39
41
40
96
56
32
39
34
79
85
50
53
45
31
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 8. Continued.
Temperature
2004
2005
(OF)
15-Jun
13-Jul
3-Aug
28-Jun
26-Jul
2-Aug
87
1\
0
9
0
0
0
90
34
7
22
2
0
5
93
34
26
32
10
14
10
96
42
30
39
12
14
IS
" In 2002, due to the timing of funding, temperature, oxygen and depth profiles were not formally started until August.
32
Table 9. Numbers of dead and morbid fishes observed by SIU personnel in
Coffeen Lake
in 1999.
Largemouth
Channel
Date
bass
Lepomis
catfish
Morone
Crappie
Carp
Shad
4/911999
0
0
2
0
0
1
0
6/211999
0
0
0
0
0
0
0
6/3/1999
0
0
0
0
0
0
0
6/8/1999
0
0
0
0
0
0
0
6/15/1999
0
0
0
0
0
0
0
6/16/1999
0
0
0
0
0
0
0
6/2911999
0
0
0
0
0
0
0
6/29/1999
0
0
0
0
0
0
0
6/30/1999
0
0
0
0
0
0
0
7/8/1999
1
0
0
0
0
0
0
7/9/1999
0
0
0
0
0
0
0
7/13/1999
0
0
0
0
0
0
0
7/16/1999
0
0
0
0
0
0
0
7/2111999
0
0
0
1
1
0
0
7123/1999
0
0
0
0
0
0
0
7/2711999
15
31
0
0
0
0
5
7/2811999
105
0
5
11
0
0
7
8/111999
0
0
0
0
0
0
0
8/211999
0
0
0
0
0
0
0
8/611999
0
0
0
0
0
0
0
8/10/1999
0
0
1
0
1
0
0
8/1111999
0
0
0
0
0
0
0
8/19/1999
0
0
0
0
0
0
0
812011999
0
0
0
0
0
0
0
8/24/1999
0
0
0
0
0
0
0
8/25/1999
0
0
0
0
0
0
0
8/2611999
0
0
0
0
0
0
0
8/27/1999
Q
Q
Q
Q
Q
Q
Q
Total
121
31
8
12
2
1
12
33
Table 10. Number of dead and morbid fishes observed by SIU personnel in
Newton Lake
in 1999.
Largemouth
Channel
Date
bass
Leeomis
catfish
Morone
Carp
Shad
3/23/1999
1
0
0
0
0
0
5/20/1999
1
0
0
0
0
6/1/1999
0
0
0
0
0
0
6/2/1999
0
0
0
0
0
0
6/3/1999
0
0
0
0
0
0
6/4/1999
0
0
0
0
0
0
6/8/1999
0
0
0
0
0
0
6/9/1999
27
0
0
0
0
0
6114/1999
0
0
0
0
0
0
611511999
0
0
0
0
0
0
6/19/1999
0
0
0
0
0
0
6/22/1999
4
0
0
0
0
0
6/23/1999
0
0
0
0
0
0
6/2411999
0
0
0
0
0
0
6/29/1999
0
0
0
0
0
0
7/611999
0
0
0
0
0
0
71711999
1
0
0
0
0
0
7/8/1999
0
0
0
0
0
0
7/14/1999
0
0
0
0
0
0
7/1511999
0
0
0
0
0
0
711611999
0
0
0
0
0
0
7/2011999
0
0
1
0
0
7/21/1999
0
0
0
0
0
0
7/23/1999
0
0
0
0
0
0
7/2411999
0
0
0
0
0
0
7/27/1999
18
22
1
8
7/29/1999
60
4
36
1
0
15
713011999
5
0
0
0
0
0
7/3111999
0
0
0
0
0
0
8/511999
3
0
9
0
0
2
8/911999
3
0
2
0
0
0
8
/ 10/1999
0
0
0
0
0
0
811111999
20
0
0
0
0
35
8118/1999
24
0
2
0
0
8/1911999
18
0
0
0
0
0
8
/
2411999
6
0
0
0
0
0
8/2511999
9
0
0
0
0
0
8/2611999
14
0
0
0
0
0
8/2711999
11
0
0
0
0
0
8/3111999
1
Q
Q
Q
Q
Q
Total
227
5
70
5
59
34
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table II. Number and total length of dead and morbid fish observed by SIU
personnel in Coffeen Lake and Newton Lake in
2000 and 2001.
Length
Locationl
Date
Species.
Number
(in.)
Status
Segment
Coffeen Lake
711812000
LMB
18
Dying
Boat
Ramp
LMB
16
Dying
Boat
I
Ramp
LMB
21
Dying
Boat
Ramp
CCF
16
Dead
Boat
Ramp
7/25/2000
CCF
14
Dead
Boat
1
Ramp
7/ 1012001
CCF
2 (11)b
2
Dead
1
CCF
15 (85)
3
Dead
1
CCF
37 (210)
4
Dead
1
CCF
20 (114)
5
Dead
1
CCF
14 (80)
6
Dead
I
CCF
8 (46)
7
Dead
I
Lepomis
spp.
20 (1l3)
2
Dead
1
Lepomis
spp.
47 (265)
3
Dead
1
Lepomis
spp.
22 (124)
4
Dead
1
Lepomis
spp.
1 (7)
5
Dead
1
Lepomis
spp.
I (7)
6
Dead
1
LMB
5 (36)
2
Dead
1
LMB
4 (29)
3
Dead
1
LMB
1 (7)
7
Dead
1
7/12/2001
STPB
1
26.5
Dead
3
WC
1
7
Dead
8/212001
CCF
1
15
Dead
4
CCF
I
14.5
Dead
4
LMB
1
16
Dead
3
WC
9
Dead
35
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 11 . Continued.
Length
Location!
Date
Species'
Number
(in.)
Status
Segment
Newton Lake
7
/2112000
LMB
1
19
Dead
3
LMB
I
16
Dead
3
8
/ 17/2000
GS
I
8
Dead
GS
I
8
Dead
7/20/2001
BC
I
12
Dead
4
WHB
I
17
D
ying
3
7/25/2001
GZ
I
12.
5
Dying
4
Lepomis
spp.
I
7
Dead
2
WHB
I
13
Dead
4
8
/1/2001
WHB
I
15
Dead
4
81712001
LMB
1
20.
5
Dead
4
8
/14/2001
CCF
1
Dead
3
GZ
1
12.5
Dead
2
8/22/2001
LMB
1
12
Dead
1
LMB
1
16.
5
Dead
4
WC
I
11.5
Dead
4
8
/28/2001
GZ
175 (lO,765l
3
Dead
1
al
LMB = Largemouth bass ; CCF = channel catfish; GZ = gizzard shad; WC =
white crappie; BC = black crappie; HSB = hybrid striped bass; STPB = striped
bass; WHB
= white bass
b
l
The number in parenthesis represents the prorated number of fish killed in
each size group based on the extrapolated estimate. See appendix G and H for
the extrapolation procedure.
36
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table 12. Number and total length of dead and moribund fish estimated
b:z: IDNR Eersonnel in Coffeen Lake from 24 June through 4
Jul~,
2002.
SEecies
Number
Length (in.)
Largemouth
bass
I
8
2
1
2
6
14
10
15
8
16
6
17
2
18
42
Bluegill
2
7
2
8
4
White crappie
2
7
1
8
3
Channel catfish
2
14
1
16
3
Gizzard shad
4
3
6
1
9
7
Threadfin shad
2
Striped bass
5
17
6
18
8
19
II
24
19
25
12
26
64
Total
124
37
Electronic Filing - Received, Clerk's Office, May 12, 2009
S~menll
Discharac
e
Intake
""
Segment 3
t
N
Figure
l.
Newton Lake with four segments where sampling was conducted. Water
temperature and dissolved oxygen were sampled at each transect line from August 1997
through
2005. Numbers represent locations of continuous temperature recorders.
38
Electronic Filing - Received, Clerk's Office, May 12, 2009
Figure 2. Coffeen Lake with two segments where sampling was conducted for water
temperature and dissolved oxygen from August 1997 through 2005. Segments 3 and 4 were
added in 2000. Sampling sites are represented by numbers inside lake borders.
39
s
OIl
~
8
-Segment 1
-
-Segment2
• • • Segment 3
-
Segment4
105 ,'------
100
I
PO •
J-\
1-\1---,'
,.
V
V
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/-r.
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Depth
=
1.5 meters
'
\'
80
,
,
,
75 -~,
I
---.----r---,.----r--~----,_--~----,_--~----~--_.---~--_.----~--~-
~
~
~
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#
~
4
~
#
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~
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#
#
#
Figure 3. Mean daily temperatures during 2005 at four monitoring stations in Newton Lake at a depth of 1.5 meters. Segment one
represents discharge mixng area, and the stations a spaced throughout the lake to Segment 4 which is near the water intake area.
40
G:'
~
~
'"
e
~
Cl
105
1
100
I
95
9
0
85
-Surface
-
-1 .5m
- - - 3.0
m
\ J
J
II.,
," ,;
'
:.- :\
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, ••
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t
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4.5m
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r-
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"
'b
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~
"
o,~
o
i~
0,
\
"
"
o, ~
'"
o,
<.f'
Figure 4. Mean daily temperatures during 2005 in Newton Lake Segment
I.
Lake bottom is approximately 16.4 feet.
41
-Surface
--l.5rn
- - - 3.0 rn
-
4.5rn
115 ,----------------------------------------------------------------------------------
110
I
~l
~~,_~-/~~\
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~ -----------------------------
s
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,
85
,
80 +,,~------------------------------------------------------------------
75 +1----r----r---,----~--~----r_--~---T----~--_.----._--~--~----._--_r--~r_--~
~
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o
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~
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~6"
~
-%
-%
6"
~..;>
~
1)
Figure 5. Mean daily temperatures in Segment I (mixing zone) during 2005 in Coffeen Lake. Lake bottom is approximately 18.0
feet.
42
Electronic Filing - Received, Clerk's Office, May 12, 2009
S
~
1!
OJ)
Cl "
-Segment I
-
Segment2
- - - Segment 3
-
Segment4
115 ,---
110
I
p!!\
.------
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--
---
--
--
----
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105
;
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M,
-----
100
95
90
85
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Ir
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Depth 1.5 meters
,li-"
\
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==-_ ~
'
:::-;:=-
__
=~
80
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~
o
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ct.,
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-c-6'
?
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~
t:>
Figure 6. Mean daily temperatures during 2005 at four monitoring stations in Coffeen Lake at a depth of 1.5 meters. Segment one
represents discharge mixng area, and the stations a spaced throughout the lake to
Segment 4 which is near the water intake area.
43
5
f
4
3
2
~I
<l::
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0;
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3:_
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-5
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"I
,', ;', j ,----,.-.. • • ,', , ', ', [
Aug- Oct- Dec- Feb- Apr- Jun- Aug- Oct- Dec- Feb- Apr- Jun- Aug- Oct- Dec- Feb- Apr- Jun- Aug- Oct-
97
97
97
98
98
98
98
98
98
99
99
99
99
99
99
00
00
00
00
00
Figure 7. Water levels (feet) in relation to pool level in Newton Lake during 1997-2000.
44
Electronic Filing - Received, Clerk's Office, May 12, 2009
5 ,-----
4 -1-
1---
3
2
2'
I
~
0:;
....l
.,
>
0
~
.,
:;;
:s
-I
-2
-3
-4
-5
Jan- Mar- May- Jul- Sep- Nov- Jan- Mar- May- Jul- Sep- Nov- Jan- Mar- May- Jul- Sep- Nov- Jan- Mar- May- Jul- Sep- Nov-
O I
0 I
0 I
0 I
0 I
0 I
02
02
02
02
02
02
03
03
03
03
03
03
04
04
04
04
04
04
Figure 8. Water levels (feet) in relation to pool level in Newton Lake during 2001-2004.
45
5 .,--
- --
--
4 +1--
-----
----------
--
----------------
--
3 +
1
----
----
------------
---
----------------
------------
2 +1
- --------
-
--
~ 1 17
1 /\£~ ~
~
~
0
IL----
i _\ .
~"---_
------=======-
-2 LI
-
-
-
-3 +1----
---
----------
----
------------
----------
---------------------
-4 +1--
----
----------
------
----------
----------
------------
-----------
-5
~
I ------
----
~
__
--------
--~--
--------~------
------~--
--------_.-----------
Jan-OS
Mar-OS
May-OS
Jul-OS
Sep-OS
Nov-OS
Figure 9_ Water levels (feet) in relation to pool level in Newton Lake during 2005 _ Water levels after August 2005 were reported only
as less than
2_7 feet below pool.
46
Electronic Filing - Received, Clerk's Office, May 12, 2009
~
<B
~
"
""ij
>
...l
"
~
1;j
"
~
5
4
3
2 -
1 •• -
0
-I
-2
-H
I,
'.
-3
I
"' .. d
I~
'l
<:11------
-4
I
I""-,..-,-J.c.-
" -----
-5
J_M.~Ju~~N_~M.~Jul·~_~~~~~_~M.M~J~~_
97
97
97
97
97
97
98
98
98
98
98
98
99
99
99
99
99
99
00
00
00
00
00
00
Figure! O. Water levels (feet) in relation to pool level in Coffeen Lake during 1997-2000.
47
5.0 -,----
-----
---
--------
-
4.
0
3
.
0 +1-
-----
--
------
----
----
-----------
--
----
------
--
2.0-,----------------,---------------------------
1.0
~
v
>
'"
-: 0
.
0
~
~
-1.0
I
\j
nUL
f
-2.0
I
I,
,rtIJ
y-~
-3.0
I
111::-------
-4 .
0
I
"~f1-I-l.d
\--I+--f--I ---------
-5.0
J_~~fu~~~~M.~fu~~~~~~~~~~~~Ju~S~~
":-~~~~~~::-:::-:=-~~~~~~~~.--~-.--r-~-.--=--.-~--.-~-~-.--
01
01
01
01
01
01
02
02
02
02
02
02
03
03
03
03
03
03
04
04
04
04
04
04
Figure 11. Water levels (feet) in relation to pool level in Coffeen Lake during 2001-2004.
48
Electronic Filing - Received, Clerk's Office, May 12, 2009
6.0
~. ------
--------
--·----
------
----------
------
------------
------
------
----
------
--
5
.
0
--
----
------
------
--
----
------
----
------
----
------
----
------
----
----------
--
4.0 .,------
--
------
-
3.0 ,-
------
--
------
----
------
--
--------
----
------
------
------
----
--------
--
--
------
2.0 +1--
--
----
------
----
--
------
----
--------
----
--------
--
--------
--------
-------
i
1.0
I
I
~
0.0
_
~ -1~
~==[:~
:L~
~
UC~
--~
~~
--
_, . --------
------
----------
----
---------
~
"
~
-----
----
------
----
--------
----
------~
~~
~-- ~
~----
----
----------
----
------------------
--
~
-1.0
-2.0 - - --
- --
- --
- --
-4/..::J
\-
- --
- --
- - --
-3.0
~_-
-
---
-
--
-
--
_ _ _
l
~
- ---
----
_
4.0
(
-5.0
I
-6.0
+.
-----
--
-_-----
--
-_-
---
---..,.--
---
--~
""\J
----.
Jan-OS
Mar-OS
May-OS
Jul-OS
Sop-OS
N
ov-OS
Figure 12. Water levels (feet) in relation to pool level in Coffeen Lake during 2005.
49
Appendix A. Depth, Temperature, Oxygen Profile
Materials and Methods:
Methods used in 2005 to determine temperature and temperature, oxygen and
depth profiles were the same as methods used during previous years
of this study (1997-
2004). The timeline was slightly different among the years due to the grant
confirmations in each year. Temperature and oxygen were sampled in weekly during
2005 beginning in June Newton and Coffeen lakes, and sampling continued through
September
2005. In order to compare the eight years of data, temperature, oxygen, and
depth profiles were taken in the same four stations Newton Lake (Figure
FI) and Coffeen
Lake (Figures F2) during
2005 as in the previous years .. Two probes from YSI Model
550A temperature/oxygen meters were used in tandem for sampling. Mt!aSurements were
taken at
0.5-m intervals from the surface to the bottom; therefore, the final reading taken
each sample date is within
0.5 - m of the bottom of the lake. Measurements were taken
at the midpoint
of each of four segments of each lake. Oxygen membranes were
changed frequently. Graphs depicting the temperature and depth profiles taken are given
in this appendix.
In Newton Lake, temperature loggers were set for continuous readings (I-hr
intervals) at three of Ameren' biostations in Newton Lake (Figure A-I) beginning in
June. The temperature loggers were programmed to measure temperature every 2
minutes, and the mean
of these measurements was recorded every I hour to determine the
hourly temperature.
We had an additional station on the buoy line near the intake.
Loggers were set at the surface and at 1.5-m intervals to a maximum
of 4.5 m at each
A-I
Electronic Filing - Received, Clerk's Office, May 12, 2009
station. Thus, temperature loggers were set at the surface, 1.5 m (4.9 ft.), 3.0 m (9.8 ft.),
and 4.5 m (\4.8 ft.) in Segments 1-4 of Newton Lake.
In Coffeen Lake, temperature loggers were set at the same depth intervals as
described for Newton Lake in four stations located at on either Ameren' biostations or
buoys. The loggers were set at biostations at the mixing zone, near the dam, and near the
intake (Figure F2). Additional loggers were set outside
of the immediate cooling loop on
a buoy provided by
IDNR
near the railroad bridge.
In both lakes, mean daily temperature and maximum daily temperature was
determined from the hourly readings. Monthly mean temperature was determined by
averaging the mean daily temperatures each month. Table A-I gives mean monthly
temperatures recorded
by Ameren' s recorders located at the biostations in the mixing
zones
of Newton Lake during 1997 through 2005. Similar data is given for Coffeen Lake
mixing zone temperatures
in Table A-2.
Weekly temperature, oxygen, and depth profiles were used to estimate the
amount
of habitat available to the fish during the study periods. Combinations of
temperature (range 87 to 97
0
F) and oxygen (range from I to 4 ppm) were used to
determine percent
of habitat available. For any combination of temperature and oxygen,
each
0.5 - m stratum was examined to determine if that stratum had water warmer than
the given temperature provided in the tables or oxygen levels lower than the given
oxygen provided in the tables.
If either of these criteria were met, the stratum was
considered unavailable
as habitat for fish. Summing all unavailable strata for a given
sampling date in a given segment and then dividing by the depth
of the segment gave an
A-
2
estimate ofthe percent of habitat that was unavailable to the fish. Subtraction from 100%
gave the percent habitat which was available. For example, if the water we
re \0 - m
deep in a particular segment on a sampling date, and for a given set
of temperature and
oxygen criteria only 2.5 m was available as fish habitat; the percent habitat available
would have been 25%.
The above method was calculated in two dimensions to provide an estimate
of
percent available habitat based upon ass
umptions of rectangular basin shape. Preliminary
investigations suggest that even extreme changes in basin shape have little effect on the
value calculated for percent available habitat.
A-3
Table A-I. Mean monthly water surface temperatures at the outer edge of the
Newton Lake mixing zone. Mean temperatures were calculated from hourly
temperature data
Erovided by Ameren.
Number
Surface temperature monthly
Year
Month
of days
average
1997
June
27
95.
9
1997
July
31
101.7
1997
August
31
96.2
1997
September
30
94.
9
1997
October
31
86.3
1997
November
21
69.5
1997
December
31
71.3
1998
January
31
62.6
1998
February
28
63.8
1998
March
31
67
1998
April
30
79.7
1998
May
31
89.8
1998
June
30
96.3
1998
July
31
101.7
1998
August
31
102.3
1998
September
30
94.
6
1998
October
31
87.
5
1998
November
30
72.4
1998
December
31
69.
8
1999
January
31
54
1999
February
28
67
1999
March
31
72.3
1999
April
30
77.3
1999
May
31
88.4
1999
June
30
97
1999
July
31
104.1
1999
August
31
99.
7
1999
September
30
93 .1
1999
October
31
85.4
1999
November
16
80.9
1999
December
24
72.7
A-4
Table A-I. Continued.
Number Surface temperature monthly
Year
Month
of days
average
2000
January
27
67.7
2000
February
19
74.9
2000
March
31
76.7
2000
April
30
71.6
2000
May
19
82.5
2000
June
29
94.2
2000
July
31
98
2000
August
31
97.5
2000
September
30
92.8
2000
October
31
84.9
2000
November
30
75.8
2000
December
31
65.
9
2001
January
--
a
a
2001
February
20
70.7
2001
March
17
73.6
2001
April
2
78.2
2001
May
31
91.7
2001
June
30
94.5
2001
July
31
100.1
2001
August
31
99.4
2001
September
30
92.9
2001
October
31
84.8
2001
November
30
75.
0
2001
December
31
70.1
2002
January
30
70.9
2002
February
28
73.5
2002
March
31
72.5
2002
April
30
82.9
2002
May
31
84.8
2002
June
30
97.4
2002
July
31
99.1
2002
August
31
96.6
2002
September
30
94.0
2002
October
31
86.3
2002
November
30
79.2
2002
December
31
69.5
A-S
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-I. Continued.
Number
Surface temperature monthly
Year
Month
of days
average
2003
January
31
68.9
2003
February
28
68.8
2003
March
31
76.3
2003
April
30
75.3
2003
May
31
84.6
2003
June
30
90.8
2003
July
31
96.9
2003
August
31
98.3
2003
September
24
92.
7
2003
October
23
84.
8
2003
November
30
77.8
2003
December
31
69.3
2004
January
31
68.0
2004
February
28
72.6
2004
March
31
•
2004
April
30
81.5
2004
May
31
93.2
2004
June
30
96.
7
2004
July
31
96.8
2004
August
31
95.3
2004
September
24
93.
3
2004
October
23
84.2
2004
November
30
75.3
2004
December
31
67.2
2005
January
31
66.9
2005
February
28
73.2
2005
March
31
74.2
2005
April
30
82.5
2005
May
31
91.4
2005
June
30
99.
0
2005
July
31
99.3
2005
August
31
99.3
2005
September
30
97.7
2005
October
31
86.
9
2005
November
30
77.6
2005
December
31
70.9
aj No data available.
A-6
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-2. Mean monthly water surface temperatures at the outer edge of the Coffeen Lake
mixing zone.
Mean temperatures were calculated from hourly temperature data provided by
Ameren.
Surface temperature monthly
Year
Month
Number of days
average
1996
September
6
92.4
1996
October
19
83.2
1996
November
30
80.5
1996
December
31
76.6
1997
January
31
71.6
1997
February
28
69.6
1997
March
26
76.1
1997
April
15
70.2
1997
May
31
77.7
1997
June
30
87.9
1997
July
31
100.8
1997
August
31
98.7
1997
September
30
88.7
1997
October
31
81.6
1997
November
30
76
1997
December
31
73.3
1998
January
23
68.2
1998
February
,
,
1998
March
,
a
1998
April
15
82.8
1998
May
31
90.8
1998
June
30
94.9
1998
July
31
102.4
1998
August
31
100.1
1998
September
28
96.1
1998
October
31
79.9
1998
November
30
68.1
1998
December
25
66.4
1999
January
26
67.8
1999
February
24
64.9
1999
March
31
73.1
1999
April
18
85.5
1999
May
31
86.4
1999
June
30
90.5
1999
July
31
103.9
1999
August
31
101.5
1999
September
30
94.8
1999
October
31
83.6
1999
November
30
75.3
1999
December
12
70.8
A-7
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-2. Continued.
Number
of days
Surface temperature monthly
Year
Month
average
2000
January
31
65.2
2000
February
29
76.3
2000
March
31
79.9
2000
April
30
81.2
2000
May
31
88
2000
June
30
93.9
2000
July
31
99.2
2000
August
31
99.2
2000
September
30
93.5
2000
October
6
83.4
2000
November
24
70.7
2000
December
31
70.3
2001
January
31
67.0
2001
February
28
71.1
2001
March
31
68.7
2001
April
30
82.4
2001
May
31
84.7
2001
June
30
86.6
2001
July
31
10l.3
2001
August
31
102.4
2001
September
30
93.2
2001
October
31
64.2
2001
November
30
62.4
2001
December
31
71.0
2002
January
31
71.0
2002
February
12
75.9
2002
March
24
75.3
2002
April
30
81.8
2002
May
31
82.2
2002
June
30
96.9
2002
July
31
100.4
2002
August
31
100.4
2002
September
30
99.2
2002
October
31
80.8
2002
November
30
76.6
2002
December
31
68.4
A-8
Table A-2. Continued.
Number
of days
Surface temperature monthly
Year
Month
average
2003
January
31
72.9
2003
February
28
74.6
2003
March
31
62.4
2003
April
30
84.0
2003
May
31
86.3
2003
June
30
96.7
2003
July
31
a
2003
August
31
102.2
2003
September
24
97.2
2003
October
23
81.8
2003
November
30
78.2
2003
December
31
72.5
2004
January
31
75.0
2004
February
28
75.3
2004
March
31
72.1
2004
April
30
81.5
2004
May
31
88.4
2004
June
30
100.8
2004
July
31
a
2004
August
31
a
2004
September
24
102.9
2004
October
23
85.3
2004
November
30
a
2004
December
31
a
2005
January
31
63.1
2005
February
28
48.4
2005
March
31
57.9
2005
April
30
74.2
2005
May
31
83.7
2005
June
30
99.9
2005
July
31
104.2
2005
August
31
\02.6
2005
September
30
100.5
2005
October
31
84.2
2005
November
30
77.8
2005
December
31
71.6
aj
No data available.
A-9
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-3. Estimated percent habitat available in Newton Lake at 1100 hours on 2 June 2005.
Habitat was considered available if it contained no less than the minimum oxygen or no more
than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel;t outside discharse mixuns; zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox;tsen (EEm)
temEerature (OF)
Sesment
I
Sesment 2 Sesment 3 Sesment 4 Mean
4
87
II
8
18
19
14
4
88
II
10
18
19
15
4
89
17
14
18
19
17
4
90
25
14
18
19
19
4
91
25
14
18
19
19
4
92
25
14
18
19
19
4
93
25
14
18
19
19
4
94
25
14
18
19
19
4
95
25
14
18
19
19
4
96
25
14
18
19
19
4
97
25
14
18
19
19
3
87
II
10
18
22
15
3
88
II
II
18
22
16
3
89
17
16
18
22
18
3
90
25
16
18
22
20
3
91
25
16
18
22
20
3
92
25
16
18
22
20
3
93
25
16
18
22
20
3
94
25
16
18
22
20
3
95
25
16
18
22
20
3
96
25
16
18
22
20
3
97
25
16
18
22
20
2
87
15
10
19
24
17
2
88
15
II
19
24
17
2
89
21
16
19
24
20
2
90
29
16
19
24
22
2
91
29
16
19
24
22
2
92
29
16
19
24
22
2
93
29
16
19
24
22
2
94
29
16
19
24
22
2
95
29
16
19
24
22
2
96
29
16
19
24
22
2
97
29
16
19
24
22
I
87
15
II
19
27
18
88
15
13
19
27
19
89
21
18
19
27
21
90
29
18
19
27
23
91
29
18
19
27
23
92
29
18
19
27
23
93
29
18
19
27
23
94
29
18
19
27
23
95
29
18
19
27
23
96
29
18
19
27
23
97
29
18
19
27
23
A-IO
Table A-4. Estimated percent habitat available in Newton Lake at 1000 hours on 7 June 2005.
Habitat was considered available if it contained no less than the minimum oxygen or no more
than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox:tgen
(~~m)
tem~rature
(OF)
Segment
I
Segment 2 Segment 3 Segment 4
Mean
4
87
0
4
9
30
II
4
88
0
4
9
30
II
4
89
0
4
14
30
12
4
90
0
4
15
30
12
4
91
0
4
15
30
12
4
92
0
4
15
30
12
4
93
0
6
15
30
13
4
94
0
6
15
30
13
4
95
4
9
15
30
15
4
96
11
13
15
30
17
4
97
21
13
15
30
20
3
87
0
4
11
30
11
3
88
0
4
11
30
11
3
89
0
4
16
30
13
3
90
0
4
17
30
13
3
91
0
4
17
30
13
3
92
0
4
17
30
13
3
93
0
6
17
30
13
3
94
0
6
17
30
13
3
95
4
9
17
30
15
3
96
11
13
17
30
18
3
97
21
13
17
30
20
2
87
8
8
11
30
14
2
88
8
8
11
30
14
2
89
8
8
16
30
16
2
90
8
8
17
30
16
2
91
8
8
17
30
16
2
92
8
8
17
30
16
2
93
8
10
17
30
16
2
94
8
iO
17
30
16
2
95
II
13
17
30
18
2
96
19
17
17
30
21
2
97
29
17
17
30
23
87
8
8
13
30
15
88
8
8
13
30
15
89
8
8
18
30
16
90
8
8
19
30
16
91
8
8
19
30
16
92
8
8
19
30
16
93
8
10
19
30
17
94
8
10
19
30
17
95
II
13
19
30
18
96
19
17
19
30
21
97
29
17
19
30
24
A-II
Table A-5 , Estimated percent habitat available in Newton Lake at 1200 hours on 14 June
2005 , Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated,
Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone (I) to intake area (4),
Percent habitat available
Minimum
Maximum
ox~gen
(22m)
tem2erature (OF)
Segment I Segment 2 Sellment 3
Sellment 4
Mean
4
87
0
0
13
30
II
4
88
0
0
13
30
II
4
89
0
0
13
30
II
4
90
0
0
13
30
II
4
91
0
2
13
30
II
4
92
0
2
13
30
II
4
93
0
4
13
30
12
4
94
0
4
13
30
12
4
95
4
13
13
30
15
4
96
4
13
13
30
15
4
97
25
13
13
30
20
3
87
0
0
14
30
II
3
88
0
0
14
30
II
3
89
0
0
14
30
II
3
90
0
0
14
30
II
3
91
0
2
14
30
12
3
92
0
2
14
30
12
3
93
4
4
14
30
13
3
94
4
4
14
30
13
3
95
8
13
14
30
16
3
96
8
13
14
30
16
3
97
29
13
14
30
22
2
87
0
2
14
30
12
2
88
0
2
14
30
12
2
89
0
2
14
30
12
2
90
0
2
14
30
12
2
91
0
4
14
30
12
2
92
0
4
14
30
12
2
93
4
6
14
30
14
2
94
4
6
14
30
14
2
95
8
15
14
30
17
2
96
8
15
14
30
17
2
97
29
15
14
30
22
87
0
6
16
30
13
88
0
6
16
30
13
89
0
6
16
30
13
90
0
6
16
30
13
91
0
8
16
30
14
92
0
8
16
30
14
93
4
10
16
30
15
94
4
10
16
30
15
95
8
19
16
30
18
96
8
19
16
30
18
97
29
19
16
30
24
A- 12
Table A-6. Estimated percent habitat available in Newton Lake at 1100 hours on 21 lune
2005 . Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediately outside discharge mixung zone (11 to intake area (4).
Percent habitat available
Minimum
Maximum
oXl::!len (Epm)
temEerature
(OF1
Segment I Segment 2 Segment 3 Segment 4
Mean
4
87
0
2
7
27
9
4
88
0
2
13
27
II
4
89
0
4
17
27
12
4
90
0
4
17
27
12
4
91
0
4
17
27
12
4
92
0
6
17
27
13
4
93
8
8
17
27
15
4
94
17
10
17
27
18
4
95
21
13
17
27
20
4
96
21
13
17
27
20
4
97
21
13
17
27
20
3
87
0
4
9
27
10
J
"
88
0
4
14
27
II
"
J
89
0
6
19
27
13
3
90
0
6
19
27
13
3
91
0
6
19
27
13
3
92
0
8
19
27
14
"
J
93
8
10
19
27
16
"
J
94
17
12
19
27
19
J
"
95
21
15
19
27
21
J
"
96
21
15
19
27
21
"
J
97
21
15
19
27
21
2
87
0
4
9
27
10
2
88
0
4
14
27
II
2
89
0
6
19
27
13
2
90
0
6
19
27
13
2
91
0
6
19
27
13
2
92
0
8
19
27
14
2
93
8
10
19
27
16
2
94
17
12
19
27
19
2
95
21
15
19
27
21
2
96
21
15
19
27
21
2
97
21
15
19
27
21
87
0
6
II
27
II
88
0
6
16
27
12
89
4
8
21
27
15
90
4
8
21
27
15
91
4
8
21
27
15
92
4
10
2 1
27
16
93
II
12
21
27
18
94
21
14
21
27
21
95
25
17
21
27
23
96
25
17
21
27
23
97
25
17
21
27
23
A-13
Table A-7. Estimated percent habitat available in Newton Lake at 1000 hours on 28 June
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
ox~gen (~~m)
tem~erature
(OF)
Segment I Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
0
0
3
4
91
0
0
0
9
2
4
92
0
0
9
23
8
4
93
4
0
10
23
9
4
94
4
0
10
23
9
4
95
4
2
10
23
10
4
96
4
8
10
23
11
4
97
8
12
10
23
13
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
3
3
90
0
0
0
6
2
3
91
0
0
0
12
3
3
92
0
0
9
26
9
3
93
4
0
10
26
10
3
94
4
0
10
26
10
3
95
4
2
10
26
11
3
96
4
8
10
26
12
3
97
8
12
10
26
14
2
87
0
0
0
0
0
2
88
0
0
2
0
2
89
4
0
2
3
2
2
90
4
2
2
6
4
2
91
4
2
2
12
5
2
92
4
2
10
26
11
2
93
8
2
12
26
12
2
94
8
2
12
26
12
2
95
8
4
12
26
13
2
96
8
10
12
26
14
2
97
II
14
12
26
16
87
0
0
2
3
88
0
0
4
3
2
89
4
0
4
6
4
90
4
2
4
9
5
91
4
2
4
15
6
92
4
2
12
29
12
93
8
2
14
29
13
94
8
2
14
29
13
95
8
4
14
29
14
96
8
10
14
29
15
97
11
14
14
29
17
A-14
Table A-8. Estimated percent habitat available in Newton Lake at 1100 hours on 5 July 2005.
Habitat was considered available if it contained no less than the minimum oxygen or no more
than the maximum temperature indicated. Segment numbers correspond
to areas sampled
immediatel~
outside discharse mixung zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
o X~!len
(~~m)
tem~erature
(O
F)
Sel1.ment I Sel!ment 2 Sel1.ment 3 Segment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
9
29
10
4
89
0
0
18
29
12
4
90
0
0
18
29
12
4
91
0
2
18
29
12
4
92
0
2
18
29
12
4
93
0
5
18
29
13
4
94
3
13
18
29
16
4
95
19
13
18
29
20
4
96
19
13
18
29
20
4
97
19
13
18
29
20
,
,
87
0
0
0
0
0
3
88
0
0
9
29
10
,
,
,
89
0
0
18
29
12
,
,
,
90
91
0
0
5
0
18
18
29
29
13
12
3
92
0
5
18
29
13
3
93
0
7
18
29
14
3
94
,
,
15
18
29
16
3
95
19
15
18
29
20
,
96
19
15
,
,
97
19
18
29
20
15
,
18
29
20
2
87
0
0
0
0
0
2
88
0
0
9
29
10
2
89
0
0
18
29
12
2
90
0
0
18
29
12
2
91
0
5
18
29
13
2
92
0
5
18
29
13
2
93
0
7
18
29
14
2
94
3
15
18
29
16
2
95
19
15
18
29
20
2
96
19
15
18
29
20
2
97
19
15
18
29
20
87
0
2
2
0
88
0
2
10
30
II
89
0
2
20
30
13
90
0
2
20
30
13
91
,
,
7
20
30
15
92
3
7
20
30
15
93
3
9
20
30
16
94
7
18
20
30
19
95
22
18
20
30
23
96
22
18
20
30
23
97
22
18
20
30
23
A-IS
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-9. Estimated percent habitat available in Newton Lake at 1400 hours on 12 July
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated.
Segment numbers correspond to areas sampled
immediatell: outside dischar!le mixun!l zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
oX~!len
(eem)
temeerature (OF)
Segment I Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
18
12
8
4
88
0
0
18
12
8
4
89
0
0
18
12
8
4
90
0
0
18
12
8
4
91
0
0
18
12
8
4
92
0
4
18
12
9
4
93
0
6
18
12
9
4
94
4
6
18
12
10
4
95
4
6
18
12
10
4
96
9
6
18
12
II
4
97
9
6
18
12
II
3
87
0
0
20
22
II
3
88
0
0
20
22
11
3
89
0
0
20
22
II
3
90
0
5
20
22
12
3
91
0
7
20
22
12
3
92
0
13
20
22
14
3
93
0
15
20
22
14
3
94
II
15
20
22
17
3
95
15
15
20
22
18
3
96
20
15
20
22
19
3
97
20
15
20
22
19
2
87
0
0
22
29
13
2
88
0
0
22
29
13
2
89
0
2
22
29
13
2
90
0
9
22
29
15
2
91
0
12
22
29
16
2
92
0
18
22
29
17
2
93
0
20
22
29
18
2
94
II
20
22
29
21
2
95
15
20
22
29
22
2
96
20
20
22
29
23
2
97
20
20
22
29
23
87
0
2
22
30
14
88
0
5
22
30
14
89
0
7
22
30
15
90
0
14
22
30
17
91
0
16
22
30
17
92
0
22
22
30
19
93
0
25
22
30
19
94
II
25
22
30
22
95
15
25
22
30
23
96
20
25
22
30
24
97
20
25
22
30
24
A-16
Electronic Filing - Received, Clerk's Office, May 12, 2009
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-IO. Estimated percent habitat available in Newton Lake at 1500 hours on 19 July
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharse mixuns zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox~sen (~~m)
temEerature (OF)
Segment I Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
2
0
I
4
88
0
0
10
17
7
4
89
0
2
13
21
9
4
90
0
2
13
25
10
4
91
0
2
15
25
11
4
92
0
4
15
30
12
4
93
0
4
17
30
13
4
94
0
7
20
30
14
4
95
0
9
20
30
15
4
96
0
11
20
30
15
4
97
4
13
20
30
17
3
87
0
0
2
0
1
3
88
0
0
10
17
7
3
89
0
2
13
21
9
3
90
0
2
13
25
10
3
91
4
2
15
25
12
3
92
4
4
15
30
13
3
93
4
4
17
30
14
3
94
4
7
20
30
15
3
95
4
9
20
30
16
3
96
4
11
20
30
16
3
97
9
13
20
30
18
2
87
0
2
2
0
1
2
88
0
2
10
17
7
2
89
0
4
13
21
10
2
90
0
4
13
25
11
2
91
4
4
15
25
12
2
92
4
7
15
30
14
2
93
4
7
17
30
15
2
94
4
9
20
30
16
2
95
4
11
20
30
16
2
96
4
13
20
30
17
2
97
9
15
20
30
19
87
0
4
4
0
2
88
0
4
11
17
8
89
0
7
15
21
11
90
0
7
15
25
12
91
4
7
17
25
13
92
4
9
17
30
15
93
4
9
19
30
16
94
4
11
22
30
17
95
4
13
22
30
17
96
4
15
22
30
18
97
9
17
22
30
20
A-17
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-II. Estimated percent habitat available in Newton Lake at 1500 hours .
on 26 July
2005. Habitat was considered available ifit contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside dischar!!e mixun!! zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox~!!en
(EEm)
temEerature (OF)
Se!!ment I Se!!ment 2 Se!!ment 3
Segment 4
Mean
4
87
0
0
Q
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
O
.
0
0
0
0
4
91
0
0
0
0
0
4
92
0
0
3
8
3
4
93
0
0
30
24
14
4
94
0
0
30
24
14
4
95
0
0
30
24
14
4
96
0
0
30
24
14
4
97
0
0
30
24
14
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
0
0
3
90
0
0
0
0
0
3
91
0
0
0
0
0
3
92
0
0
3
II
4
3
93
0
0
30
26
14
3
94
0
0
30
26
14
3
95
0
0
30
26
14
3
96
0
0
30
26
14
3
97
0
0
30
26
14
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
0
0
0
2
90
0
0
0
0
0
2
91
0
0
0
3
2
92
0
0
3
14
4
2
93
0
0
30
29
15
2
94
0
0
30
29
15
2
95
0
0
30
29
15
2
96
0
0
30
29
15
2
97
0
0
30
29
15
87
0
0
0
0
0
88
0
0
0
0
0
89
0
0
0
0
0
90
0
0
0
0
0
91
0
0
0
3
I
92
0
0
3
14
4
93
0
0
30
29
15
94
0
0
30
29
15
95
0
2
30
29
15
96
0
2
30
29
15
97
0
2
30
29
15
A-18
Table A-12. Estimated percent habitat available in Newton Lake at 1600 hours on 2 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
irnmediatel~
outside discharlle mixunll zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
oxygen
(~~m)
tem~erature
(OF)
Sei\ment I Segment 2 Sei\ment 3
Sellment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
2
II
3
4
90
0
0
4
15
5
4
91
0
0
10
19
7
4
92
0
0
10
23
8
4
93
0
2
10
29
10
4
94
0
5
10
29
II
4
95
5
7
16
29
14
4
96
5
9
16
29
15
4
97
5
15
16
29
16
3
87
0
0
0
0
0
3
88
0
0
0
0
0
,
,
89
0
0
2
II
3
3
90
0
0
4
15
5
3
91
0
0
10
19
7
,
,
,
92
0
0
10
23
8
,
93
0
2
10
29
10
3
94
0
5
10
29
11
,
95
5
,
7
16
29
14
3
96
5
9
16
29
15
,
,
97
5
15
16
29
16
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
4
11
4
2
90
0
0
6
15
5
2
91
0
0
II
19
8
2
92
0
0
11
23
9
2
93
0
2
II
29
II
2
94
0
5
II
29
II
2
95
5
7
18
29
15
2
96
5
9
18
29
15
2
97
5
15
18
29
17
87
0
0
0
0
0
88
0
0
0
2
89
0
0
4
13
4
90
0
0
6
17
6
91
0
0
II
21
8
92
0
2
II
25
10
93
0
5
11
30
12
94
0
7
11
30
12
95
5
9
18
30
16
96
5
12
18
30
16
97
5
18
18
30
18
A-19
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-13. Estimated percent habitat available in Newton Lake at 1300 hours on 9 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment nllmbers correspond to areas sampled
immediatel;t outside discharse mixuns zone
~Il
to intake area
~41.
Percent habitat available
Minimum
Maximum
ox;tsen
~EEml
temEerature
~oFI
Sesment I Sesment 2 Sesment 3
Sesment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
0
2
II
3
4
91
0
0
4
19
6
4
92
0
0
10
29
10
4
93
0
0
10
29
10
4
94
0
2
15
29
12
4
95
0
7
15
29
13
4
96
0
9
15
29
13
4
97
0
9
15
29
13
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
2
3
90
0
0
4
13
4
3
91
0
0
6
21
7
3
92
0
0
12
30
II
3
93
0
2
12
30
II
3
94
4
5
17
30
14
3
95
4
9
17
30
15
3
96
4
12
17
30
16
3
97
4
12
17
30
16
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
4
2
2
2
90
0
0
8
13
5
2
91
0
0
10
21
8
2
92
0
0
16
30
12
2
93
0
2
16
30
12
2
94
4
5
21
30
15
2
95
4
9
21
30
16
2
96
4
12
21
30
17
2
97
4
12
21
30
17
87
0
0
0
0
0
88
0
0
0
0
0
89
0
0
4
2
2
90
0
0
8
13
5
91
0
2
10
21
8
92
0
2
16
30
12
93
0
5
16
30
13
94
4
7
21
30
16
95
4
12
21
30
17
96
4
14
21
30
17
97
4
14
21
30
17
A-20
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-14. Estimated percent habitat available in Newton Lake at 1500 hours on 16 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel:z: outside
dischar~e
mixung zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
ox:z:~en
(eem)
temeerature (OF)
Se~ment
I Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
0
15
4
4
88
0
0
4
59
16
4
89
0
0
45
59
26
4
90
0
0
45
59
26
4
91
0
9
45
59
28
4
92
0
34
45
59
35
4
93
9
34
45
59
37
4
94
17
34
45
59
39
4
95
26
34
45
59
41
4
96
35
34
45
59
43
4
97
35
34
45
59
43
3
87
0
0
0
15
4
3
88
0
0
8
59
17
3
89
0
0
49
59
27
3
90
0
4
49
59
28
3
91
0
13
49
59
30
3
92
0
38
49
59
37
3
93
9
38
49
59
39
3
94
17
38
49
59
41
3
95
26
38
49
59
43
3
96
35
38
49
59
45
3
97
35
38
49
59
45
2
87
0
0
0
15
4
2
88
0
0
8
59
17
2
89
0
0
49
59
27
2
90
0
9
49
59
29
2
91
0
17
49
59
31
2
92
0
42
49
59
38
2
93
9
42
49
59
40
2
94
17
42
49
59
42
2
95
26
42
49
59
44
2
96
35
42
49
59
46
2
97
35
42
49
59
46
87
0
0
4
15
5
88
0
0
II
59
18
89
0
0
52
59
28
90
0
9
52
59
30
91
0
17
52
59
32
92
0
42
52
59
38
93
9
42
52
59
41
94
17
42
52
59
43
95
26
42
52
59
45
96
35
42
52
59
47
97
35
42
52
59
47
A-21
Table A-IS. Estimated percent habitat available in Newton Lake at 1300 hours on 23 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated.
Segment numbers correspond to areas sampled
immediately outside
discharge mixunll zone
(I~
to intake area (4).
Percent habitat available
Minimum
Maximum
oX~i1en (~~m)
tem~erature
(OF)
Segment I Se/;lment 2 Sesment 3 Sesment 4
Mean
4
87
0
0
0
20
5
4
88
0
0
0
29
7
4
89
0
0
2
29
8
4
90
0
0
23
29
13
4
91
0
5
23
29
14
4
92
0
9
23
29
IS
4
93
0
18
23
29
18
4
94
4
18
23
29
19
4
95
9
18
23
29
20
4
96
28
18
23
29
25
4
97
28
18
23
29
25
3
87
0
0
0
22
6
3
88
0
0
0
30
8
3
89
0
0
2
30
8
3
90
0
0
23
30
13
3
91
0
5
23
30
IS
3
92
0
9
23
30
16
3
93
0
18
23
30
18
3
94
4
18
23
30
19
3
95
9
18
23
30
20
3
96
28
18
23
30
25
3
97
28
18
23
30
25
2
87
0
0
0
22
6
2
88
0
0
0
30
8
2
89
0
0
2
30
8
2
90
0
5
23
30
IS
2
91
0
9
23
30
16
2
92
0
14
23
30
17
2
93
0
22
23
30
19
2
94
4
22
23
30
20
2
95
9
22
23
30
21
2
96
28
22
23
30
26
2
97
28
22
23
30
26
87
0
0
0
22
6
88
0
0
2
30
8
89
0
0
4
30
9
90
0
5
25
30
15
91
0
9
25
30
16
92
0
14
25
30
17
93
0
22
25
30
19
94
4
22
25
30
20
95
9
22
25
30
22
96
28
22
25
30
26
97
28
22
25
30
26
A-22
Table A-16. Estimated percent habitat available in Newton Lake at 1800 hours on 31 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside dischar!!e mixun!! zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
oXY/;len (22m)
tem2erature (OF)
Segment I Se/;lment 2 Segment 3 Se!!ment 4
Mean
4
87
0
0
14
29
11
4
88
0
0
18
29
12
4
89
0
0
27
29
14
4
90
0
0
27
29
14
4
91
0
4
27
29
15
4
92
3
6
27
29
16
4
93
3
6
27
29
16
4
94
3
13
27
29
18
4
95
3
13
27
29
18
4
96
8
13
27
29
19
4
97
13
13
27
29
21
3
87
0
0
16
30
12
3
88
0
0
20
30
13
3
89
0
2
29
30
15
3
90
0
2
29
30
15
3
91
0
6
29
30
16
3
92
3
8
29
30
18
3
93
3
8
29
30
18
3
94
3
15
29
30
19
3
95
3
15
29
30
19
3
96
8
15
29
30
21
3
97
13
15
29
30
22
2
87
0
2
16
30
12
2
88
0
2
20
30
13
2
89
0
4
29
30
16
2
90
0
4
29
30
16
2
91
0
8
29
30
17
2
92
3
10
29
30
18
2
93
3
10
29
30
18
2
94
3
17
29
30
20
2
95
3
17
29
30
20
2
96
8
17
29
30
21
2
97
13
17
29
30
22
87
0
2
17
30
12
88
0
4
21
30
14
89
0
6
30
30
17
90
0
6
30
30
17
91
0
10
30
30
18
92
3
12
30
30
19
93
3
12
30
30
19
94
3
19
30
30
21
95
3
19
30
30
21
96
8
19
30
30
22
97
13
19
30
30
23
A-23
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-17. Estimated percent habitat available in Newton Lake at 1800 hours on 8
September 2005. Habitat was considered available if it contained no less than the minimum
oxygen
or no more than the maximum temperature indicated. Segment numbers correspond to
areas samE led immediately outside
discharge mixung zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
oxygen (EEm)
temEerature (OF) Segment I Sellment 2 Segment 3 Sellment 4
Mean
4
87
0
0
4
7
3
4
88
0
0
8
14
6
4
89
0
0
8
29
9
4
90
0
0
11
29
10
4
91
0
0
18
29
12
4
92
0
2
18
29
12
4
93
0
2
18
29
12
4
94
0
4
18
29
13
4
95
0
4
18
29
13
4
96
0
12
18
29
15
4
97
4
12
18
29
16
3
87
0
0
6
7
3
3
88
0
0
10
14
6
3
89
0
0
10
29
10
3
90
0
0
13
29
II
3
91
4
0
20
29
13
3
92
4
2
20
29
14
3
93
4
2
20
29
14
3
94
4
4
20
29
14
3
95
4
4
20
29
14
3
96
4
12
20
29
16
3
97
9
12
20
29
18
2
87
0
4
8
8
5
2
88
0
7
II
15
8
2
89
0
7
II
30
12
2
90
0
7
15
30
13
2
91
7
7
22
30
17
2
92
7
9
22
30
17
2
93
7
9
22
30
17
2
94
7
II
22
30
18
2
95
7
II
22
30
18
2
96
7
19
22
30
20
2
97
II
19
22
30
21
87
0
9
II
8
7
88
0
II
15
15
10
89
0
II
15
30
14
90
0
II
19
30
15
91
7
II
26
30
19
92
7
13
26
30
19
93
7
13
26
30
19
94
7
15
26
30
20
95
7
15
26
30
20
96
7
23
26
30
22
97
II
23
26
30
23
A-24
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-18. Estimated percent habitat available in Newton Lake at 1000 hours on 14
September 2005. Habitat was considered available if it contained no less than the minimum
oxygen or no more than the maximum temperature indicated. Segment numbers correspond to
areas same led
immediatel~
outside discharge mixung zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox~gen
(eem)
temeerature (OF)
Sel:\ment I Sesment 2 Segment 3
Segment 4
Mean
4
87
0
0
24
29
13
4
88
0
0
25
29
14
4
89
0
0
25
29
14
4
90
0
0
25
29
14
4
91
0
0
25
29
14
4
92
0
5
25
29
15
4
93
0
5
25
29
15
4
94
0
7
25
29
15
4
95
28
9
25
29
23
4
96
28
15
25
29
24
4
97
28
15
25
29
24
3
87
0
0
24
29
13
3
88
0
0
25
29
14
3
89
0
0
25
29
14
,
90
0
2
25
,
,
91
0
2
25
29
14
,
,
,
,
92
0
7
25
29
29
15
14
93
0
7
25
,
29
15
3
94
0
9
25
29
16
3
95
28
12
25
29
24
3
96
28
18
25
29
25
3
97
28
18
25
29
25
2
87
0
2
28
29
15
2
88
0
2
29
29
15
2
89
0
2
29
29
15
2
90
0
5
29
29
16
2
91
0
5
29
29
16
2
92
0
9
29
29
17
2
93
0
9
29
29
17
2
94
0
12
29
29
18
2
95
30
14
29
29
26
2
96
30
20
29
29
27
2
97
30
20
29
29
27
87
0
13
29
30
18
88
0
13
30
30
18
89
0
13
30
30
18
90
0
15
30
30
19
91
0
15
30
30
19
92
0
20
30
30
20
93
0
20
30
30
20
94
0
22
30
30
21
95
30
25
30
30
29
96
30
30
30
30
30
97
30
30
30
30
30
A-25
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-19. Estimated percent habitat available in Newton Lake at 1700 hours on 21
September 2005. Habitat was considered available ifit contained no less than the minimum
oxygen
0 no more than the maximum temperature indicated. Segment numbers correspond to
areas
same led
immediatel~
outside discharge mixung zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
ox~gen ~eem)
temeerature (OF) .
Segment 1 Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
24
28
13
4
88
0
0
24
28
13
4
89
0
0
24
28
13
4
90
0
0
24
28
13
4
91
0
0
24
28
13
4
92
0
2
24
28
14
4
93
0
3
24
28
14
4
94
3
12
24
28
17
4
95
7
12
24
28
18
4
96
17
12
24
28
20
4
97
20
12
24
28
21
3
87
0
0
24
28
13
3
88
0
0
24
28
13
3
89
0
0
24
28
13
3
90
0
2
24
28
14
3
91
0
2
24
28
14
3
92
3
4
24
28
15
3
93
3
5
24
28
15
3
94
7
14
24
28
18
3
95
10
14
24
28
19
3
96
20
14
24
28
22
3
97
24
14
24
28
23
2
87
0
0
28
28
14
2
88
0
0
28
28
14
2
89
0
0
28
28
14
2
90
0
2
28
28
15
2
91
0
2
28
28
15
2
92
3
4
28
28
16
2
93
3
5
28
28
16
2
94
7
14
28
28
19
2
95
10
14
28
28
20
2
96
20
14
28
28
23
2
97
24
14
28
28
24
87
0
0
30
30
15
88
0
0
30
30
15
89
0
0
30
30
15
90
0
2
30
30
16
91
0
2
30
30
16
92
3
4
30
30
17
93
3
5
30
30
17
94
7
14
30
30
20
95
10
14
30
30
21
96
20
14
30
30
24
97
24
14
30
30
25
A-26
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-20. Estimated percent habitat available in Newton Lake at 1100 hours on 29
September 2005. Habitat as considered available if it contained no less than the minimum
oxygen 0 no more than the maximum temperature indicated. Segment numbers correspond to
areas samEled
immediatel~
outside discharse mixuns zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
ox~sen
(EEm)
temEerature (OF)
Sesment 1 Sesment 2 Sesment 3 Sesment 4
Mean
4
87
0
18
30
30
20
4
88
7
18
30
30
21
4
89
30
18
30
30
27
4
90
30
18
30
30
27
4
91
30
18
30
30
27
4
92
30
18
30
30
27
4
93
30
18
30
30
27
4
94
30
18
30
30
27
4
95
30
18
30
30
27
4
96
30
18
30
30
27
4
97
30
18
30
30
27
3
87
0
20
30
30
20
3
88
7
20
30
30
22
3
89
30
20
30
30
28
3
90
30
20
30
30
28
3
91
30
20
30
30
28
3
92
30
20
30
30
28
3
93
30
20
30
30
28
3
94
30
20
30
30
28
3
95
30
20
30
30
28
3
96
30
20
30
30
28
3
97
30
20
30
30
28
2
87
0
20
30
30
20
2
88
7
20
30
30
22
2
89
30
20
30
30
28
2
90
30
20
30
30
28
2
91
30
20
30
30
28
2
92
30
20
30
30
28
2
93
30
20
30
30
28
2
94
30
20
30
30
28
2
95
30
20
30
30
28
2
96
30
20
30
30
28
2
97
30
20
30
30
28
87
0
22
30
30
21
88
7
22
30
30
22
89
30
22
30
30
28
90
30
22
30
30
28
91
30
22
30
30
28
92
30
22
30
30
28
93
30
22
30
30
28
94
30
22
30
30
28
95
30
22
30
30
28
96
30
22
30
30
28
97
30
22
30
30
28
A-27
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-21. Estimated percent habitat available in Coffeen Lake at 1100 hours on 3 June
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharlle mixunll zone
(I
~
to intake area
(4~.
Percent habitat available
Minimum
Maximum
ox~gen (~~m~
tem~erature (OF~
Sellment
I
Segment 2 Segment 3
Segment 4
Mean
4
87
8
12
21
23
16
4
88
10
12
21
23
17
4
89
12
12
21
23
17
4
90
12
12
21
23
17
4
91
12
12
21
23
17
4
92
12
12
21
23
17
4
93
12
12
21
23
17
4
94
12
12
21
23
17
4
95
12
12
21
23
17
4
96
12
12
21
23
17
4
97
12
12
21
23
17
3
87
10
13
27
23
18
3
88
II
13
27
23
19
3
89
13
13
27
23
19
3
90
13
!3
27
23
19
3
91
!3
13
27
23
19
3
92
13
13
27
23
19
3
93
13
13
27
23
19
3
94
!3
13
27
23
19
3
95
13
13
27
23
19
3
96
13
13
27
23
19
3
97
13
13
27
23
19
2
87
II
14
29
25
20
2
88
12
14
29
25
20
2
89
15
14
29
25
21
2
90
15
14
29
25
21
2
91
15
14
29
25
21
2
92
15
14
29
25
21
2
93
15
14
29
25
21
2
94
15
14
29
25
21
2
95
15
14
29
25
21
2
96
15
14
29
25
21
2
97
15
14
29
25
21
87
14
18
29
27
22
88
15
18
29
27
22
89
17
18
29
27
23
90
17
18
29
27
23
91
17
18
29
27
23
92
17
18
29
27
23
93
17
18
29
27
23
94
17
18
29
27
23
95
17
18
29
27
23
96
17
18
29
27
2
3
97
17
18
29
27
23
A-28
Table A-22. Estimated percent habitat available in Coffeen Lake at 1200 hours on 8 June
2005. Habitat was considered available ifit contained no less than the minimum oxygen or no
more than the maximum temperature indicated.
Segment numbers correspond to areas sampled
immediately outside
discharlle mixunll zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
ox:tll
en
(ee
m)
temeerature (OF)
Sellment I Sellment 2 Sellment 3 Sellment 4
Mean
4
87
9
7
2
8
7
4
88
9
7
6
10
8
4
89
9
7
19
18
13
4
90
9
8
19
18
14
4
91
9
9
19
18
14
4
92
9
9
19
18
14
4
93
9
14
19
18
15
4
94
9
14
19
18
15
4
95
9
14
19
18
15
4
96
9
14
19
18
15
4
97
10
14
19
18
15
3
87
9
7
4
10
8
3
88
9
7
8
II
9
3
89
9
7
21
20
14
3
90
9
8
21
20
15
3
91
9
9
21
20
15
3
92
9
9
21
20
15
3
93
9
14
21
20
16
3
94
9
14
21
20
16
3
95
9
14
21
20
16
3
96
9
14
21
20
16
3
97
10
14
21
20
16
2
87
10
8
6
10
9
2
88
10
8
10
II
10
2
89
10
8
23
20
15
2
90
10
9
23
20
16
2
91
10
II
23
20
16
2
92
10
II
23
20
16
2
93
10
15
23
20
17
2
94
10
15
23
20
17
2
95
10
15
23
20
17
2
96
10
15
23
20
17
2
97
12
15
23
20
18
87
10
9
8
15
II
88
10
9
12
17
12
89
10
9
25
26
18
90
10
II
25
26
18
91
10
12
25
26
18
92
10
12
25
26
18
93
10
17
25
26
20
94
10
17
25
26
20
95
10
17
25
26
20
96
10
17
25
26
20
97
12
17
25
26
20
A-29
Table A-23. Estimated percent habitat available in Coffeen Lake at 1300 hours on 16 June
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone (1) to intake area (4).
Percent habitat available
Minimum
Maximum
oX~Ben
(EEm)
temEerature (OF)
Se!lment I Se!lment 2 Se!lment 3
Se!lment 4
Mean
4
87
2
13
29
28
18
4
88
3
15
29
30
19
4
89
5
18
29
30
21
4
90
6
18
29
30
21
4
91
6
18
29
30
21
4
92
8
18
29
30
21
4
93
I 1
18
29
30
22
4
94
I I
18
29
30
22
4
95
I I
18
29
30
22
4
96
I I
18
29
30
22
4
97
I I
18
29
30
22
3
87
2
13
29
28
18
3
88
3
15
29
30
19
3
89
5
18
29
30
21
3
90
6
18
29
30
21
3
91
6
18
29
30
21
3
92
8
18
29
30
21
3
93
I I
18
29
30
22
3
94
I I
18
29
30
22
3
95
I I
18
29
30
22
3
96
I I
18
29
30
22
3
97
I I
18
29
30
22
2
87
6
IS
30
28
20
2
88
8
16
30
30
21
2
89
9
19
30
30
22
2
90
I I
19
30
30
23
2
91
I I
19
30
30
23
2
92
12
19
30
30
23
2
93
16
19
30
30
24
2
94
16
19
30
30
24
2
95
16
19
30
30
24
2
96
16
19
30
30
24
2
97
16
19
30
30
24
87
8
16
30
28
21
88
9
17
30
30
22
89
I I
21
30
30
23
90
12
21
30
30
23
91
12
21
30
30
23
92
14
21
30
30
24
93
18
21
30
30
25
94
18
21
30
30
25
95
18
21
30
30
25
96
18
21
30
30
25
97
18
21
30
30
25
A-30
Table A-24. Estimated percent habitat available in Coffeen Lake at 1500 hours on 21 June
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone (I) to intake area
~4).
Percent habitat available
Minimum
Maximum
ox~gen
(22m)
tem2erature
(OF)
Segment I Segment 2 Segment 3 Segment 4
Mean
4
87
2
4
10
9
6
4
88
4
5
10
12
8
4
89
5
5
12
14
9
4
90
5
7
16
19
12
4
91
5
7
18
19
12
4
92
6
8
23
21
15
4
93
6
9
23
21
15
4
94
6
9
23
23
15
4
95
6
12
23
27
17
4
96
6
14
23
27
18
4
97
6
14
23
27
18
3
87
4
5
14
12
9
3
88
5
7
14
14
10
3
89
6
7
16
16
11
3
90
6
8
20
21
14
3
91
6
8
22
21
14
3
92
7
9
27
23
17
3
93
7
11
27
23
17
3
94
7
11
27
26
18
3
95
7
13
27
29
19
3
96
7
15
27
29
20
3
97
7
15
27
29
20
2
87
4
7
14
12
9
2
88
5
8
14
14
10
2
89
6
8
16
16
12
2
90
6
9
20
21
14
2
91
6
9
22
21
15
2
92
7
11
27
23
17
2
93
7
12
27
23
17
2
94
7
12
27
26
18
2
95
7
15
27
29
20
2
96
7
17
27
29
20
2
97
7
17
27
29
20
87
5
8
14
12
10
88
6
9
14
14
II
89
7
9
16
16
12
90
7
11
20
21
15
91
7
II
22
21
15
92
8
12
27
23
18
93
8
13
27
23
18
94
8
13
27
26
19
95
8
16
27
29
20
96
8
18
27
29
21
97
8
18
27
29
21
A-3\
Table A-25. Estimated percent habitat available in Coffeen Lake at 1600 hours on 28 June
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox~gen
(eem)
temeerature (OF) Segment I Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
0
2
0
4
91
0
0
2
0
4
92
0
I
2
0
I
4
93
3
2
0
2
4
94
4
6
4
5
5
4
95
7
7
9
12
9
4
96
9
9
15
14
12
4
97
9
to
21
22
16
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
2
0
3
90
0
0
4
0
3
91
0
0
4
0
3
92
I
4
0
2
3
93
3
3
4
0
3
3
94
6
6
7
5
6
3
95
9
7
II
12
10
3
96
10
9
17
14
13
3
97
10
10
23
22
16
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
2
0
2
90
0
4
0
2
91
0
4
2
2
2
92
3
3
4
2
3
2
93
4
4
4
2
4
2
94
7
7
7
7
7
2
95
10
9
II
14
II
2
96
12
to
17
16
14
2
97
12
12
23
25
18
87
0
0
0
0
0
88
0
0
0
0
89
0
2
0
90
0
3
4
0
2
91
0
3
4
2
2
92
3
4
4
2
3
93
4
6
4
2
4
94
7
9
7
7
8
95
10
10
II
14
II
96
12
12
17
16
14
97
12
13
23
25
18
A-32
Table A-26. Estimated percent habitat available in Coffeen Lake at 1600 hours on 7 July
2005 . Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel):: outside discharse mix un!! zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox)::sen (EEm)
temeer.ture (OF)
Sellment
I
Sellment 2 Sellment 3 Sesment4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
I
7
0
2
4
91
0
6
19
7
8
4
92
0
7
23
14
I I
4
93
0
9
29
21
15
4
94
0
10
29
27
17
4
95
0
17
29
27
18
4
96
2
17
29
27
19
4
97
2
17
29
27
19
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
0
0
3
90
0
4
7
2
3
3
91
0
9
19
9
9
3
92
0
10
23
16
12
3
93
0
12
29
23
16
3
94
2
13
29
29
18
3
95
2
20
29
29
20
3
96
3
20
29
29
20
3
97
3
20
29
29
20
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
0
0
2
90
0
6
7
2
4
2
91
0
10
19
9
10
2
92
0
12
23
16
13
2
93
2
13
29
23
17
2
94
3
15
29
29
19
2
95
3
21
29
29
21
2
96
5
21
29
29
21
2
97
5
21
29
29
21
87
0
0
0
0
0
88
0
0
0
0
0
89
0
0
0
0
90
3
6
7
2
5
91
5
10
19
9
I I
92
5
12
23
16
14
93
6
13
29
23
18
94
8
15
29
29
20
95
8
21
29
29
22
96
10
21
29
29
22
97
10
21
29
29
22
A-33
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-27. Estimated percent habitat available in Coffeen Lake at 1400 hours on 13 July
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
olltside discharge mixung zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
ox~gen
(eem)
temEerature (OF) Segment 1 Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
17
0
4
4
89
0
0
17
15
8
4
90
0
0
17
15
8
4
91
0
0
17
15
8
4
92
0
0
17
15
8
4
93
0
0
17
15
8
4
94
0
0
17
15
8
4
95
0
0
17
15
8
4
96
2
0
17
15
9
4
97
9
0
17
15
10
3
87
0
0
2
0
1
3
88
0
0
27
9
9
3
89
0
3
27
26
14
3
90
0
4
27
26
14
3
91
0
15
27
26
17
3
92
0
15
27
26
17
3
93
0
15
27
26
17
3
94
0
15
27
26
17
3
95
2
15
27
26
18
3
96
4
15
27
26
18
3
97
10
15
27
26
20
2
87
0
0
2
0
2
88
0
I
27
13
10
2
89
0
6
27
30
16
2
90
0
9
27
30
17
2
91
0
21
27
30
20
2
92
0
21
27
30
20
2
93
0
21
27
30
20
2
94
0
21
27
30
20
2
95
2
21
27
30
20
2
96
4
21
27
30
21
2
97
10
21
27
30
22
87
0
3
4
0
2
88
0
4
29
13
12
89
0
9
29
30
17
90
0
12
29
30
18
91
0
24
29
30
21
92
2
24
29
30
21
93
3
24
29
30
22
94
3
24
29
30
22
95
5
24
29
30
22
96
7
24
29
30
23
97
14
24
29
30
24
A-34
Table A-28. Estimated percent habitat available in Coffeen Lake at 1200 hours on 20 July
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatell outside discharge mixung zone
~I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox~en!eem)
temeerature (OF)
Segment
I
Segment 2 Segment 3 Segment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
2
0
4
91
0
2
0
4
92
5
4
2
5
4
4
93
5
4
4
12
6
4
94
6
6
13
16
10
4
95
6
7
17
19
12
4
96
6
9
25
25
16
4
97
6
9
25
25
16
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
0
0
3
90
2
3
2
0
2
3
91
3
3
2
0
2
3
92
8
6
2
5
5
3
93
8
6
4
12
8
3
94
9
7
13
16
II
3
95
9
9
17
19
14
3
96
9
10
25
25
17
3
97
9
10
25
25
17
2
87
0
0
0
0
0
2
88
0
0
2
0
2
89
0
4
0
2
90
3
4
7
2
4
2
91
5
4
7
2
5
2
92
9
7
7
7
8
2
93
9
7
9
14
10
2
94
II
9
17
19
14
2
95
II
10
22
21
16
2
96
II
12
29
27
20
2
97
II
12
29
27
20
87
0
0
I
0
0
88
0
0
3
0
89
0
3
5
0
2
90
3
6
8
2
5
91
5
6
8
2
5
92
9
9
8
7
8
93
9
9
10
14
II
94
II
10
19
19
15
95
I I
12
23
21
17
96
II
13
30
27
20
97
II
13
30
27
20
A-35
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-29. Estimated percent habitat available in Coffeen Lake at 1200 hours on 27 July
2005. Habitat was considered available ifit contained no less than the minimum oxygen 01' no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharse mixunll zone (1) to intake area (4).
Percent habitat available
Minimum
Maximum
ox~sen (~~m)
tem~rature
(OF)
Sellment 1 Sellment 2 Sellment 3 Sellment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
0
0
0
0
4
91
0
0
0
0
0
4
92
0
0
0
7
2
4
93
0
23
29
13
4
94
0
10
23
29
16
4
95
2
15
23
29
17
4
96
5
20
23
29
19
4
97
6
20
23
29
20
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
0
0
3
90
0
0
0
0
0
3
91
0
0
0
0
0
3
92
0
0
2
7
2
3
93
0
25
29
14
3
94
0
10
25
29
16
3
95
3
15
25
29
18
3
96
6
20
25
29
20
3
97
8
20
25
29
21
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
0
0
0
2
90
0
0
0
0
0
2
91
0
0
0
0
0
2
92
0
0
2
7
2
2
93
0
25
29
14
2
94
0
10
25
29
16
2
95
6
15
25
29
19
2
96
10
20
25
29
21
2
97
II
20
25
29
21
87
0
0
0
0
0
88
0
0
0
0
0
89
0
0
0
0
0
90
0
0
0
0
0
91
0
2
0
92
0
I
7
7
4
93
0
3
29
29
15
94
0
12
29
29
18
95
6
17
29
29
20
96
10
21
29
29
22
97
II
21
29
29
23
A-36
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-30. Estimated percent habitat available in Coffeen Lake at 1300 hours on 2 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment
numbers correspond to areas sampled
immediatel~
outside discharge mixun& zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox~gen
(EEm)
temE:rature
(OF)
Segment
I
Se&ment 2 Segment 3
Se&ment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
0
0
0
0
4
91
0
0
0
0
0
4
92
0
0
0
0
0
4
93
0
0
0
2
4
94
0
2
4
2
4
95
2
4
7
13
7
4
96
2
6
23
15
12
4
97
3
13
23
23
16
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
0
0
3
90
0
0
4
0
3
91
0
0
4
0
3
92
0
0
4
0
3
93
0
0
7
2
2
3
94
3
I
9
4
4
3
95
5
4
13
13
9
3
96
5
6
29
15
14
3
97
6
13
29
23
18
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
0
0
0
2
90
0
0
4
0
2
91
0
0
4
0
2
92
0
0
4
0
I
2
93
0
3
7
2
3
2
94
5
4
9
4
6
2
95
6
7
13
13
10
2
96
6
8
29
15
15
2
97
8
16
29
23
19
87
0
0
0
0
0
88
0
0
0
0
0
89
0
0
0
0
0
90
0
0
4
0
91
0
0
4
0
I
92
0
0
4
2
2
93
2
3
7
4
4
94
6
4
9
7
7
95
8
7
13
15
II
96
8
8
29
17
16
97
9
16
29
25
20
A-37
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-31. Estimated percent habitat available in Coffeen Lake at 1600 hours on 9 August
2005 . Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated.
Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone (1) to intake area (4).
Percent
habitat available
Minimum
Maximum
oxygen (EEm)
temEerature (OF)
Sellment I Sellment 2 Sellment 3 Se!i.ment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
2
0
4
90
0
0
2
0
4
91
0
0
4
0
I
4
92
0
3
7
2
3
4
93
2
4
9
9
6
4
94
3
6
II
16
9
4
95
3
9
15
19
12
4
96
3
9
29
27
17
4
97
5
10
29
27
18
3
87
0
0
0
0
0
3
88
0
0
0
0
0
,
,
,
89
0
0
2
0
,
90
0
0
2
0
3
91
0
0
4
0
I
3
92
0
4
7
2
3
3
93
5
6
9
9
7
3
94
6
7
II
16
10
3
95
6
10
15
19
13
,
96
6
10
29
,
27
18
3
97
8
12
29
27
19
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
2
0
2
90
0
0
2
0
I
2
91
0
0
4
2
2
2
92
2
4
7
5
5
2
93
6
6
9
12
8
2
94
8
7
II
19
II
2
95
8
10
15
21
14
2
96
8
10
29
29
19
2
97
10
12
29
29
20
87
0
0
0
0
0
88
0
0
89
0
3
3
0
2
90
0
3
,
,
0
2
91
0
4
5
2
3
92
5
9
8
5
7
93
10
10
10
12
11
94
II
12
12
19
14
95
II
15
16
21
16
96
II
15
30
29
21
97
13
16
30
29
22
A-38
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-32. Estimated percent habitat available in Coffeen Lake at 1200 hours on 18 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond
to areas sampled
immediatel~
outside discharge mixuns zone (11 to intake area (4).
Percent habitat available
Minimum
Maximum
oX~!len
(eem)
temeerature (
O
F)
Sellment I
Se~ment
2 Segment 3 Segment 4
Mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
2
2
2
2
4
90
0
8
8
13
7
4
91
0
9
29
29
17
4
92
0
12
29
29
18
4
93
0
19
29
29
19
4
94
0
19
29
29
19
4
95
0
19
29
29
19
4
96
0
19
29
29
19
4
97
2
19
29
29
20
,
~
87
0
0
0
0
0
3
88
0
2
0
0
I
3
89
0
5
2
2
2
3
90
0
II
8
13
8
,
91
0
12
29
29
18
~
3
92
0
15
29
29
18
,
93
0
22
~
29
29
20
,
94
0
22
29
~
29
20
3
95
0
22
29
29
20
,
96
0
22
29
29
20
~
~
,
97
2
22
29
29
21
2
87
0
2
0
0
2
88
0
3
0
0
I
2
89
0
6
2
2
3
2
90
5
12
8
13
10
2
91
6
14
29
29
20
2
92
8
17
29
29
21
2
93
8
24
29
29
23
2
94
8
24
29
29
23
2
95
8
24
29
29
23
2
96
8
24
29
29
23
2
97
10
24
29
29
23
87
0
~
0
0
0
88
0
5
0
0
89
0
8
2
2
3
90
8
14
8
13
II
91
10
15
29
29
21
92
II
18
29
29
22
93
II
25
29
29
24
94
II
25
29
29
24
95
II
25
29
29
24
96
II
25
29
29
24
97
13
25
29
29
24
A-39
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-33. Estimated percent habitat available in Coffeen Lake at 1700 hours on 23 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
more than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel~
outside discharge mixung zone (I) to intake area (4).
Percent
habitat available
Minimum
Maximum
ox~gen
(EEm)
temEerature
CF)
Segment I Seament 2 Se&ment 3 Se&ment 4 Mean
4
87
0
0
0
0
0
4
88
0
0
I
0
0
4
89
0
0
0
0
4
90
0
2
I
4
91
0
5
8
4
4
4
92
0
8
30
30
17
4
93
2
8
30
30
18
4
94
2
14
30
30
19
4
95
3
18
30
30
20
4
96
~
-
18
30
30
20
4
97
5
18
30
30
21
~
-
87
0
0
0
0
0
~
-
88
0
0
0
0
3
89
0
0
0
0
3
90
0
~
-
I
3
91
0
6
8
4
5
3
92
2
9
30
30
18
3
93
~
-
9
30
30
18
3
94
~
-
16
30
30
20
3
95
5
19
30
30
21
3
96
5
19
30
30
21
3
97
7
19
30
30
22
2
87
0
0
0
0
0
2
88
0
0
0
0
2
89
0
0
0
0
2
90
0
5
I
2
2
91
0
8
8
4
5
2
92
3
II
30
30
19
2
93
5
II
30
30
19
2
94
5
18
30
30
21
2
95
7
21
30
30
22
2
96
7
21
30
30
22
2
97
8
21
30
30
22
87
0
0
0
0
0
88
0
0
0
0
89
0
2
0
I
90
0
6
I
I
2
91
2
9
8
4
6
92
5
12
30
30
19
93
7
12
30
30
20
94
7
19
30
30
22
95
8
22
30
30
23
96
8
22
30
30
23
97
10
22
30
30
23
A-40
Table A-34. Estimated percent habitat available in Coffeen Lake at 1400 hours on 31 August
2005. Habitat was considered available if it contained no less than the minimum oxygen or no
mOre than the maximum temperature indicated. Segment numbers correspond to areas sampled
immediatel;t outside dischar&e mixun& zone (I) to intake area (4).
Percent
habitat available
Minimum
Maximum
oX:i&en
(~~m)
tem~rature
(OF)
Se&ment I Se&ment 2 Sesment 3 Sellment 4
Mean
4
87
0
9
29
19
14
4
88
2
15
29
22
17
4
89
5
18
29
30
21
4
90
5
23
29
30
22
4
91
5
23
29
30
22
4
92
5
23
29
30
22
4
93
5
23
29
30
22
4
94
5
23
29
30
22
4
95
5
23
29
30
22
4
96
9
23
29
30
23
4
97
15
23
29
30
24
3
87
0
9
30
19
15
3
88
4
15
30
22
18
3
89
7
18
30
30
21
3
90
7
23
30
30
23
3
91
7
23
30
30
23
3
92
7
23
30
30
23
3
93
7
23
30
30
23
3
94
7
23
30
30
23
3
95
7
23
30
30
23
3
96
II
23
30
30
24
3
97
17
23
30
30
25
2
87
0
II
30
19
IS
2
88
5
17
30
22
19
2
89
9
20
30
30
22
2
90
9
24
30
30
23
2
91
9
24
30
30
23
2
92
9
24
30
30
23
2
93
9
24
30
30
23
2
94
9
24
30
30
23
2
95
9
24
30
30
23
2
96
13
24
30
30
24
2
97
19
24
30
30
26
I
87
0
12
30
19
15
88
5
18
30
22
19
89
9
21
30
30
23
90
9
26
30
30
24
91
9
26
30
30
24
92
9
26
30
30
24
93
9
26
30
30
24
94
9
26
30
30
24
95
9
26
30
30
24
96
13
26
30
30
25
97
19
26
30
30
26
A-41
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-35. Estimated pel'cent habitat available in Coffeen Lake at 1400 hours on 8
September 2005. Habitat was considered available if it contained no less than the minimum
oxygen
or no more than the maximum temperature indicated. Segment numbers correspond to
areas samE!led
immediatel~
outside discharl!e
mixun~
zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
oX~llen
(E!E!m)
tem!:!!:r'ture (OF)
Se~ment
I
Se~ment
2 Sellment 3 Sel!ment 4
Mean
4
87
0
2
7
3
3
4
88
5
5
12
10
8
4
89
6
6
12
15
10
4
90
8
8
19
20
14
4
91
8
9
26
23
17
4
92
9
12
29
27
19
4
93
9
14
29
29
20
4
94
9
18
29
29
21
4
95
II
18
29
29
22
4
96
II
18
29
29
22
4
97
II
18
29
29
22
3
87
0
3
7
3
3
3
88
5
6
12
10
8
3
89
6
8
12
15
10
3
90
8
9
19
20
14
3
91
8
II
26
23
17
3
92
9
14
29
27
20
3
93
9
16
29
29
21
3
94
9
19
29
29
22
3
95
II
19
29
29
22
3
96
II
19
29
29
22
3
97
II
19
29
29
22
2
87
2
8
7
4
5
2
88
6
II
12
II
10
2
89
8
12
12
17
12
2
90
9
14
19
22
16
2
91
9
15
26
24
19
2
92
II
18
29
28
22
2
93
II
21
29
30
23
2
94
II
24
29
30
24
2
95
12
24
29
30
24
2
96
12
24
29
30
24
2
97
12
24
29
30
24
87
3
9
8
4
6
88
8
12
13
II
II
89
9
14
13
17
13
90
II
15
20
22
17
91
II
17
27
24
20
92
12
20
30
28
23
93
12
22
30
30
24
94
12
25
30
30
24
95
14
25
30
30
25
96
14
25
30
30
25
97
14
25
30
30
25
A-42
Table A-36. E
stimated percent habitat available in Coffeen Lake at 1400 hours on 14
September 2005 . Habitat was considered available if it contained no less than the minimum
oxygen or
no more than the maximum temperature indicated. Segment numbers correspond to
areas samEled
irnmediatel~
outside
dischaq~e
mixung zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
ox~!!en
(EEm)
tem~rature
(OF)
SeGment
I
Segment 2 Sesment 3 Segment 4
Mean
4
87
I
0
2
0
I
4
88
2
8
9
5
4
89
5
27
13
12
4
90
I
10
27
27
16
4
91
3
12
27
27
17
4
92
4
20
27
27
20
4
93
6
20
27
27
20
4
94
8
20
27
27
21
4
95
8
20
27
27
21
4
96
8
20
27
27
21
4
97
II
20
27
27
21
3
87
0
2
0
3
88
I
3
8
9
5
3
89
3
6
27
13
12
3
90
4
II
27
27
17
3
91
6
14
27
27
19
3
92
8
22
27
27
21
3
93
9
22
27
27
21
3
94
II
22
27
27
22
3
95
II
22
27
27
22
3
96
II
22
27
27
22
3
97
14
22
27
27
23
2
87
3
7
4
2
4
2
88
3
10
10
II
9
2
89
8
14
29
15
17
2
90
9
18
29
29
21
2
91
II
21
29
29
23
2
92
13
29
29
29
25
2
93
14
29
29
29
25
2
94
16
29
29
29
26
2
95
16
29
29
29
26
2
96
16
29
29
29
26
2
97
19
29
29
29
27
87
8
9
5
3
6
88
1 I
12
1 I
12
12
89
16
15
30
16
19
90
18
20
30
30
25
91
19
22
30
30
25
92
21
30
30
30
28
93
23
30
30
30
28
94
25
30
30
30
29
95
25
30
30
30
29
96
25
30
30
30
29
97
28
30
30
30
30
A-43
Table A-37. Estimated percent habitat available in Coffeen Lake at 1700 hours on 21
September 2005. Habitat was considered available if it contained no less than the minimum
oxygen
0 no more than the maximum temperature indicated. Segment numbers correspond to
areas
sam~led
immedialelx outside discharge mixung zone
(I)
to intake area (4).
Percent habitat available
Minimum
Maximum
oxxgen
(~~m)
lem~rature
(OF)
Segment I Sellment 2 Segment 3 Segment 4
Mean
4
87
0
14
8
13
9
4
88
0
14
16
19
12
4
89
0
17
30
27
19
4
90
0
20
30
27
19
4
91
0
22
30
27
20
4
92
0
22
30
27
20
4
93
0
22
30
27
20
4
94
2
22
30
27
20
4
95
2
22
30
27
20
4
96
2
22
30
27
20
4
97
3
22
30
27
21
3
87
0
17
8
15
10
3
88
2
17
16
21
14
3
89
2
20
30
29
20
3
90
2
23
30
29
21
3
91
2
25
30
29
22
3
92
2
25
30
29
22
3
93
2
25
30
29
22
3
94
3
25
30
29
22
3
95
3
25
30
29
22
3
96
3
25
30
29
22
3
97
5
25
30
29
22
2
87
5
17
8
15
11
2
88
6
17
16
21
15
2
89
6
20
30
29
21
2
90
6
23
30
29
22
2
91
6
25
30
29
23
2
92
6
25
30
29
23
2
93
6
25
30
29
23
2
94
8
25
30
29
23
2
95
8
25
30
29
23
2
96
8
25
30
29
23
2
97
10
25
30
29
24
87
10
17
8
15
13
88
11
17
16
21
16
89
11
20
30
29
23
90
11
23
30
29
23
91
11
25
30
29
24
92
"
25
30
29
24
93
11
25
30
29
24
94
13
25
30
29
24
95
13
25
30
29
24
96
13
25
30
29
24
97
14
25
30
29
25
A-44
Electronic Filing - Received, Clerk's Office, May 12, 2009
Table A-38. Estimated percent habitat available in Coffeen Lake at 1600 hours on 29
September 2005. Habitat as considered available ifit contained no less than the minimum
oxygen
0 no more than the maximum temperature indicated. Segment numbers correspond to
areas samE led immediately outside discharlle mixunll zone (I) to intake area (4).
Percent habitat available
Minimum
Maximum
oXl:llen (Epm)
temEerature (OF)
Sellment I Sellment 2 Sellment 3 Sellment 4
Mean
4
87
0
24
30
30
21
4
88
0
28
30
30
22
4
89
2
28
30
30
23
4
90
2
28
30
30
23
4
91
2
28
30
30
23
4
92
3
28
30
30
23
4
93
,
0
28
30
30
23
4
94
3
28
30
30
23
4
95
3
28
30
30
23
4
96
6
28
30
30
24
4
97
7
28
30
30
24
3
87
6
26
30
30
23
,
0
88
6
30
30
30
24
3
89
8
30
30
30
25
3
90
8
30
30
30
25
3
91
8
30
30
30
25
3
92
10
30
30
30
25
,
0
93
10
30
30
30
25
3
94
10
30
30
30
25
3
95
10
30
30
30
25
3
96
12
30
30
30
26
3
97
14
30
30
30
26
2
87
13
26
30
30
25
2
88
13
30
30
30
26
2
89
14
30
30
30
26
2
90
14
30
30
30
26
2
91
14
30
30
30
26
2
92
16
30
30
30
27
2
93
16
30
30
30
27
2
94
16
30
30
30
27
2
95
16
30
30
30
27
2
96
18
30
30
30
27
2
97
20
30
30
30
28
87
18
26
30
30
26
88
18
30
30
30
27
89
19
30
30
30
27
90
19
30
30
30
27
91
19
30
30
30
27
92
21
30
30
30
28
93
21
30
30
30
28
94
21
30
30
30
28
95
21
30
30
30
28
96
23
30
30
30
28
97
25
30
30
30
29
A-45
Discharge
Segment 1
Segment 3
t
N
Figure A--I. Four segments in Newton Lake where water temperature and dissolved oxygen
were sampled. Data were collected weekly at each transect line from June
2005 through
September
2005 . Numbers in lake boundaries represent locations of continuous temperature
recorders set during same periods.
A-46
Figure A-2. Four segments in Coffeen Lake where water temperature and dissolved oxygen
were sampled. Data were collected weekly at each segment number from June
2005 through
September
2005. Numbers in lake boundaries represent locations of continuous temperature
recorders set during same periods.
A-47
Segment 1
D,III'IQILI
•
•
"
0.
0
•
;,
u
•
;,
Newton Lake, June 2, 2005
Segment 2
o,(mgll)
•
•
"
0.
0
r--~-
•
.--~
,
.
,
..
...
..
•
•
•
•
,"
•
Segment 3
O,(mgIL)
0.
•
•
"
0
r-
- ---
__
~
••
Segment 4
O,lmglL)
•
•
"
0.0 , ---
::--:
. :--
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;,
,;
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0.",
••
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Dept,. 13. I
(fl.)
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13.1
(h.)
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11 :10
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13.1 •
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II066n7814 90
Temperalure,F)
Segment 1
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•
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io
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10:
30
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n
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11 :28
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66
n
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Temperalurl/"
co,
•
23
.
0:
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11 :
55
211 . ,'~~
____
~
806en78U90
Temperalute IFI
Newton Lake, June 7, 2005
Segment 2
Segment 3
0J(mgfL)
O,(mgIL)
..
•
•
•
"
..
0
•
•
"
•
"
0
,
.
,
,;
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••
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t.
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13.1
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10:
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"
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1
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1
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60Mn7884to
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Segment 4
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•
•
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•
•
•
•
,
"
,;
•
"
11:15
..
"
T~
"
"'
..
lfl
"
"
.
Figure A.3, Temperature and dissolved oxygen profiles in 4 segments of Newton Lake,
Triangles represent temperature (F) and squares represent oxygen (mg
I
L),
A48
"'"
1"-
'
Segment I
OJ{mgfLI
0
•
•
"
0.0
•
,;
"
,;
•
••
•
•
it
,_
•
11 :
35
" " L- ~
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.
,
e5
n
7t
as
93
lOG
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Segment 1
O,(mg/L)
•
•
•
,;
•
,;
,;
•
"
u
._
•
10
:
45
-
(I.'
Newton Lake, June 14,2005
00
,.,
••
I.
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.s .
• _
•
\lui
•
Segment 2
O/(lI'OglLI
•
•
"
.'
•
•
•
•
•
,.
..
.'
•
23.
0"
11:45
L...-__ .
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Segment 3
O,(mg/L)
00
•
•
"
••
n
DeclIh 13
.1
.'
(I.,
•
U
I
.
<I
•
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"
IS
72
"
8G
In
100
TtllOlpe1' ..... (fJ
Newton Lake, June 21, 2005
-
Segment 2
"
.o r---~--
•• --
..
-"
•
13
•
..
••
.'
(I, 13.'
•
W
115 .
...
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•
..
23.0'
•
10:
55
Segment 3
O,(mgllj
•
•
"
0.
0
r---------.:;.--
"
••
Depth
13.1
(I.
,
111.4
._
'517 :
23.0.
•
•
11:10
.,.'"
(I.
,
0.,.,
,
..
0
.
'
"
...
..
'"
Segment 4
O,(mIl/L
0
.
"
0.0
,
.
,
..
..
'"
If
.•
'"
,;
•
•
12:
20
U7:711851)11)O
Ttn'IJ»I .....
IfJ
Segment 4
o,(mglll
•
•
"
,;
•
;,
;,
,;
,;
,;
..
,;
lU
•• '
13.1.
L ..---,
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11:25
__ _
2$,J ,
191 •
L.....---__ ...--_
"S
12
711
815
93
100
T eMpefalu •• I
F)
65
72
79
116
"3
100
T CtnPelf(U" (F)
85
12
19
116
93
100
6$
72
111
M
113
100
T...,pe,alUfe IF)
'....,"",.lu'
. (F)
Figure A-4, Temperature and dissolved oxygen profiles in 4 segments of Newton Lake,
Triangles represent temperature (F) and squares represent oxygen (mg /
L),
A-49
....
'"
....
III.)
Segment 1
0,1"'11
1
1,.)
..
0
•
~
•
"
•
u
oi
•
..
•
..
O.
.
'
; .
i
10:15
1)1.
I
..
"
"
..
"
Temptl'aI ... e IF,
,
..
Segment 1
O,(mg/LI
0
•
•
"
0.0
~
,;
"
,;
,;
...
..
ri
u
1
:.-
•
I
13.
,.
~
,
" "
" "
..
"
Te"'peraluf' I
F)
Newton Lake,
June
28, 2005
Segment 2
Segment 3
Segment 4
O,lmglL)
O,(mgIL)
O,lmglLI
0
•
•
"
0
•
•
"
0
•
•
00
•
..
•
00
,;
•
"
,;
,
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,;
,
•
•
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,;
...
•
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o.
.......•
...
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111 Ii
ri
~I:tl
.....
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10
18.4
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,
11
.7 t
11.
4 •
,
•
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13.1
23.0 •
191
t
10:30
10:
4,
-
II.)
23.0'
",
"
n
Temper_e
"
..
(f')
"
""
..
"
T .mpeI'~e(F
"
..
I
"
Newton Lake,
July
5, 2005
Segment 2
Segment 3
o,l-.g/lj
0
•
•
:: I
•
..
••
.. '
••
...
~
•
..
Ii
•
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,
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11.1.
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Tempe,.ureIF
" "
l
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11 :
35
..
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o
O,I..g/l)
•
0
00
•
3.3
III
•
u
•
•
•
IU
•
~13.1
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llU • •.•
.
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UI,7 :
no.
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11:55
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------+-----
6511 n lJt!l9$
r
~''''e
( f)
~.
""
"
"
'''''''''''''''elf)
"
..
"
Segment 4
o,(mglll
0
•
•
"
0.
0
•
•
"
•
,;
o:;"u
•
,;
"
.
'" l ...
. .
..
"
,
,0
6511
11
13
119!lS
r."'PII"_e(F)
"
,
..
Figure A-5. Temperature and dissolved oxygen profiles in 4 segments of Newton Lake,
Triangles represent temperature
(F)
and squares represent oxygen (mg
I
L).
A-50
,.",
(ft.,
"''''
(fl.'
Newton Lake, July 12,2005
Segment
1
Segment 2
Segment 3
O,lmglL)
~(mgIL)
o,(mg/lJ
00
•
•
"
•
•
"
0
•
•
"
00
•
0.0
•
~
io
•
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•
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(fI_1
13.1
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16 .•
•
•
16.4
Ii
•
197 .
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•
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23.0.
•
14:00
19.7.
14:35
•
15:00
•
•
•
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"
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To:mperalufe
"
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IF)
"
"0
" "
TemperatUfo
" "
(F)
"
'00
" "
Te
"
..
"
".
mpelatUfe If)
Newton Lake, July 19,2005
Segment 1
Segment 2
Segment 3
O,I"'IIIL)
a , lmg lL)
O,(mg/L)
0
•
•
"
•
•
"
•
•
"
00
0.0
0.0
~
•
"
...
"
"
•
•
Depth
,
..
.
••
(11.1
~13.'
••
•
•
16,
13,'
••
"
..
•
19,7
" .
•
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...
•
19.7
•
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23.0
•
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•
14:38
/0
15:42
•
15:50
230'
".,
65
73
81
89
97
105
65
73
81
89
97
105
65
73
61
89
91
105
Temperature IF)
Temperalure IF)
Temperature{F)
0","
(It.,
0.",
(1t_1
00
"
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•••
13,1
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0.0
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•••
••
13.1
Segment 4
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~
•
•
•
•
..
•
,;
,;
,;
15:40
n
"
..
"
'00
Temperme(F)
Segment 4
O,(mgIL)
"
8
12
,.
•
"
•
Ii
,;
16:20
65
73
81
89
97
105
Temperature IF)
Figure A-6, Temperature and dissolved oxygen profiles in 4 segments of Newton Lake,
Triangles represent temperature (F) and squares represent oxygen (mg / L),
A
-51
Newton Lake,
July
26, 2005
Segment 1
Segment 2
Segment 3
Segment 4
O.(mgIL)
O,(mgIL)
•
•
"
•
•
•
"
"
o
"
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0
0.
0
0
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1-4:
00
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Segment 1
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16:
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18.1.
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Tempera/III. IF]
"
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19.7
23.0
15;00
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15:
30
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"
"
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IO.
"
8'
17
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911
105
Te...peralure (
F j
T
ltlllperalUla IF)
Newton Lake, August 2, 2005
Segment 2
Segment 3
0,1",, 1\)
O,(mgll)
•
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•
•
,
"
0
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;,
,;
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•
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16:15
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50
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..
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}
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"
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.
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15:10
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.... \FI
,,.
Figure
A-7.
Temperature and dissolved oxygen profiles in 4 segments of Newton Lake.
Triangles represent temperature (F) and squares represent oxygen (mg /
L).
A.52
Electronic Filing - Received, Clerk's Office, May 12, 2009
Newton Lake, August 9, 2005
Segment I
Segment 2
Segment 3
Segment 4
O,(mglL)
O,lmglLI
O,lmgll)
O,ltrogllj
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Newton Lake, August 16,2005
Segment I
Segment 2
Segment 3
Segment 4
O,lmg/L)
O,lmglL)
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O,lmo/l)
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T~r"ur.IFI
Figure A-8, Temperature and dissolved oxygen profiles in 4 segments of Newton Lake,
Triangles represent temperature (F) and squares represent oxygen (mg / L),
A-53
Newton Lake, August 23, 2005
Segment 1
Segment 2
Segment 3
Segment 4
O.{mg/L)
O,{mg/L)
O,(mg/L)
O, {
mgIL)
...
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empe,atwe If)
Temper;l(ure{F)
TempeI'alu.e IF)
Newton Lake, August 31, 2005
Segment 1
Segment 2
Segment 3
Segment 4
0, (mg/L)
~(mgIL)
O,(mg/l)
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If)
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Tempe<a1U1'I! IF )
Tempefllture If)
Figure A-9, Temperature and dissolved oxygen profiles in 4 segments of Newton Lake,
Triangles represent temperature (F) and squares represent oxygen (mg / L),
A-54
Electronic Filing - Received, Clerk's Office, May 12, 2009
Segment
1
O,{mgILI
•
•
"
00
~
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(II,)
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30
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mg lll
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10:00
75
80
85
90
95
100
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Newton Lake, September 8, 2005
Segment 2
Segment 3
0, (mglL)
O,tmg/L)
00
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17:50
18:
10
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emperature IF)
Temperature IF)
Newton Lake, September 14,2005
Segment 2
0, (mglLI
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Segment 4
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75 80
85
90
95
100
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T emperalur. IF)
Temperalure IF)
Figure A-lO. Temperature and dissolved oxygen profiles in 4 segments of Newton Lake.
Triangles represent temperature (F) and squares represent oxygen (mg / L).
A
-5
5
Electronic Filing - Received, Clerk's Office, May 12, 2009
Newton Lake, September 22, 2005
Segment
I
Segment 2
Segment 3
Segment 4
0""",/1.]
O,(mg/l)
°limg/lJ
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GO
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Newton Lake, September 29, 2005
Segment 2
O,(mgIL)
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757'8'8<181 '0
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Figure A-II. Temperature and dissolved oxygen profiles in 4 segments of Newton Lake,
Triangles represent temperature (F) and squares represent oxygen (mg /
L).
A-56
Segment 1
°limglL)
•
•
•
•
3.
•
•
3
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30
55
55
75
15
g.s
105
TempelllUlelF,
Coffeen Lake, June 3, 2005
Segment 2
Segment 3
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Coffeen Lake, June 8, 2005
Segment 2
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IS
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lOS
T
• ...".'.Iu'.'"
Figure A-12. Temperature and dissolved oxygen profiles in 4 segments of Coffeen Lake.
Triangles represent temperature (F) and squares represent oxygen (mg / L).
A-57
Electronic Filing - Received, Clerk's Office, May 12, 2009
Coffeen Lake, June 16, 2005
Segment I
•
"
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--..-'
"
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Coffeen Lake, June 21, 2005
•
Segment I
O:t (Ing I L)
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Temper.wr.
(F)
Figure A-I3, Temperature and dissolved oxygen profiles in 4 segments of Coffeen Lake,
Triangles represent temperature (F) and squares represent oxygen (mg / L),
A-58
Electronic Filing - Received, Clerk's Office, May 12, 2009
Segment I
O,(mgIL)
oo r----
•
"
3.3
.. ,
, ..
131
•
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16..
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16:30
60
70
80
90
100
110
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Segment I
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r--~--;
•
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29.S.
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1
6:55
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60
68
76
8.
92
100
TemperatU/eIF)
Coffeen Lake, June 28, 2005
Segment 2
" r---.---.",
3.3
...
, ..
>1,
Depth 16 .•
(ft.)
19.7
",
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26.3 •
29.S.
•
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32.S.
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15
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70
so
90
100
110
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00
,
•
O,(mg/L)
•
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;-
"
"
;,
;,
,.
;,
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Ii
Ii
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13.1
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15:50
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1!50
70
80
go
100
110
T
empe<~lUre
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Coffeen Lake, July 7, 2005
Segment 2
,
°l(mgll)
0.0
•
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3.3
•
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6.6
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Oeplh
13.1
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32.6.
16:31
60
6&
76
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92
100
Tempe.atu.e {F)
,...
(ft.,
Segment 3
,
•
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1
(mg/l)
•
"
"
"
.,
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•
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(ft.)
Segment 4
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13.1
16 .•
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~(mg/L)
•
•
"
•
•
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15:30
60
70
eo
90
100
110
D
00
"
"
Tempefllure (F)
Segment 4
~lmgllJ
•
•
•
Ii
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D
(ft.,
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16,4
19.7
.
'
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•
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•
,;
•
15:25
----
60
58
76
84
92
100
Tempe/aMa IF)
Figure A-I4, Temperature and dissolved oxygen profiles in 4 segments of Coffeen Lake,
Triangles represent temperature (F) and squares represent oxygen (mg / L),
A-59
Electronic Filing - Received, Clerk's Office, May 12, 2009
Segment I
~(mgIL'
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A-60
Electronic Filing - Received, Clerk's Office, May 12, 2009
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Triangles represent temperature (F) and squares represent oxygen (mg /
L).
A-6J
Coffeen Lake, August 9, 2005
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Triangles represent temperature (F) and squares represent oxygen (mg / L),
A -
62
Coffeen Lake, August 23, 2005
Segment
I
Segment 2
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Triangles represent temperature (F) and squares represent oxygen (mg / L).
A-64
Electronic Filing - Received, Clerk's Office, May 12, 2009
Coffeen Lake, September 21, 2005
Segment 1
Segment 2
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Triangles represent temperature (F) and squares represent oxygen (mg / L),
A
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65
Electronic Filing - Received, Clerk's Office, May 12, 2009
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o,~
0,\,<-'
0,'1'-'">
o,fl'
Figure A-22. Mean daily temperatures during 2005 in Newton Lake Segment I. Lake bottom is approximately 16.4 fee
t.
A -67
Electronic Filing - Received, Clerk's Office, May 12, 2009
r;
3
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bIl
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-
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Figure A-23. Mean daily temperatures during 2005 in Newton Lake Segment 2. Lake bottom is approximately 32.8 feet.
A-68
Electronic Filing - Received, Clerk's Office, May 12, 2009
~
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-
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-
-1.5
m
- - - 3.0
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<tf"
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Figure A-24. Mean daily temperatures during 2005 in Newton Lake Segment 3. Lake bottom is approximately 32.8 feet.
A-69
E
~
"
o
~
-Surface
-
-1.5
m
- - - 3.0
m
-
4.
5m
100 , -- ---
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95
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Figure A-25. Mean daily temperatures during 2005 in Newton Lake Segment 4. Lake bottom is approximately 29.5 feet.
A-70
Figure A-26. Mean daily temperatures during 2005
in
the Coffeen Lake discharge. Lake bottom is approximately 18.0 feet.
A-71
Electronic Filing - Received, Clerk's Office, May 12, 2009
G:'
~
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u
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0
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6"
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Figure A-27. Mean daily temperatures in Segment 1 (mixing zone) during 2005 in Coffeen Lake. Lake bottom is
approximately 18.0 feet.
-%
o
A-72
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()
Figure A-28. Mean daily temperatures during 2005, Coffeen Lake at the dam. Lake bottom is approximately 42.6 feet.
A-73
Electronic Filing - Received, Clerk's Office, May 12, 2009
G:"
~
~
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o
-Surface
-
-1.5rn
- - - 3.
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%
o
Figure A-29. Mean daily temperatures during 2005, Coffeen Lake at the intake. Lake bottom is approximately 26.2 feet.
A-74
Electronic Filing - Received, Clerk's Office, May 12, 2009
100 1
I
95
1
90
t-
1t
85
+-1'
I
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t
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to
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.9?
%
~
f5'
~.J
Figure A-30. Mean daily temperatures during 2005, Coffeen Lake located near the railroad bridge. Lake bottom is
approximately 24.7 feet.
'%
rJ
A-75
Appendix B: Extreme Habitat Conditions in Newton Lake and Coffeen Lake During 1999
Habitat conditions are given for periods
in 1999 when summer fish kills occured in Newton and
Coffeen Lake.
B-1
Appendix B-1 . Estimated percent habitat available in Newton Lake, July 24, 1999 (Segment 1
=
9:20 AM, Segment 2
=
!0:33AM, Segment 3
=
12: 12 PM, Segment 4
=
1 :36 PM). Habitat was
considered available ifit contained no less than the minimum oxygen or no more than the
maximum temperature indicated.
Minimum
Maximum
%
Habitat Available
Oxygen (ppm)
Temperature (OF)
Segment I
Segment 2
Segment 3
Segment 4
mean
4
87
0
0
0
0
0
4
88
0
0
0
0
0
4
89
0
0
0
0
0
4
90
0
0
0
0
0
4
91
0
0
0
0
0
4
92
0
0
0
10
3
4
93
0
0
6
20
7
4
94
0
0
18
50
17
4
95
0
0
24
80
26
4
96
0
0
38
85
31
4
97
0
0
38
85
31
3
87
0
0
0
0
0
3
88
0
0
0
0
0
3
89
0
0
0
0
0
3
90
0
0
0
0
0
3
91
0
0
0
0
0
3
92
0
0
0
10
3
3
93
0
0
6
20
7
3
94
0
0
18
50
17
3
95
0
0
24
80
26
3
96
0
6
38
85
32
3
97
0
6
38
85
32
2
87
0
0
0
0
0
2
88
0
0
0
0
0
2
89
0
0
0
0
0
2
90
0
0
0
0
0
2
91
0
0
0
0
0
2
92
0
0
0
10
3
2
93
0
6
6
20
8
2
94
0
6
18
50
19
2
95
0
6
24
80
28
2
96
0
13
38
85
34
2
97
0
13
38
85
34
87
0
0
0
0
0
88
0
0
0
0
0
89
0
0
0
0
0
90
0
0
0
0
0
91
13
0
6
0
5
92
13
0
6
10
7
93
13
6
12
20
13
94
25
6
24
50
26
95
25
6
29
80
35
96
25
13
44
85
42
97
25
13
44
85
42
B-2
Appendix 8-2. Estimated percent habitat available in Newton Lake, July 29, 1999 (all segments = between
I
:00 PM and 5 :00 PM). Habitat was considered available if it contained no less than the minimum oxygen
or no more than the maximum temperature indicated.
Minimum
Maximum
% Habitat Available
Oxygen (ppm)
Temperature
(OF)
Segment 3
Segment 3-4 border
Segment 4
4
87
0
0
0
4
88
0
0
0
4
89
0
0
0
4
90
0
0
0
4
91
0
0
0
4
92
14
17
0
4
93
29
17
50
4
94
43
33
50
4
95
43
33
50
4
96
43
33
75
4
97
57
33
75
3
87
0
0
0
3
88
0
0
0
3
89
0
0
0
3
90
0
0
0
3
91
0
0
0
3
92
14
17
0
3
93
29
17
50
3
94
43
33
50
3
95
43
33
50
3
96
43
33
75
3
97
57
33
75
2
87
0
0
0
2
88
0
0
0
2
89
0
0
0
2
90
0
0
0
2
91
0
0
0
2
92
14
17
0
2
93
29
17
50
2
94
43
33
50
2
95
43
33
50
2
96
43
33
75
2
97
57
33
75
87
14
17
0
88
14
17
0
89
14
17
0
90
14
17
0
91
14
17
0
92
29
33
13
93
43
33
63
94
57
50
63
95
57
50
63
96
57
50
88
97
71
50
88
B-3
Appendix B-3. Estimated percent habitat available in Newton Lake, July 30, 1999 (Segment 4a = 4:30 PM,
Segment 4b
=
6:
30 PM). Habitat was considered available if it contained no less than the minimum oxygen
or
no more than the maximum temperature indicated.
Minimum
Maximum
% Habitat Available
Ox
ygen (ppm) Temperature (OF) Segment 4a Segment 4b
4
87
0
0
4
88
0
0
4
89
0
0
4
90
0
0
4
91
0
0
4
92
13
0
4
93
13
0
4
94
13
20
4
95
13
40
4
96
38
40
4
97
38
40
3
87
0
0
3
88
0
0
3
89
0
0
3
90
0
0
3
91
0
0
3
92
13
0
3
93
13
0
3
94
13
20
3
95
13
40
3
96
38
40
3
97
38
40
2
87
0
0
2
88
0
0
2
89
0
0
2
90
0
0
2
91
0
0
2
92
13
0
2
93
13
0
2
94
13
20
2
95
13
40
2
96
38
40
2
97
38
40
87
0
10
88
0
10
89
0
10
90
0
10
91
0
10
92
13
10
93
13
10
94
13
30
95
13
50
96
38
50
97
38
50
B-4
Electronic Filing - Received, Clerk's Office, May 12, 2009
Appendix B-4. Estimated percent habitat available in Newton Lake, August 5, 1999
(Segment 1 = 3:50 PM, Segment 2 = 4:05 PM, Segment 3 = 4:20 PM, Segment 4 = 4:40
PM). Habitat was considered available if it contained no less than the minimum oxygen or
no more than the maximum temperature indicated.
Minimum
Maximum
% Habitat Available
Ox
ygen (ppm)
Temperature
(OF)
Segment I
Segment 2
Segment 3
Segment 4
mean
4
87
0
0
0
5
4
88
0
0
0
25
6
4
89
0
0
11
55
17
4
90
0
0
11
65
19
4
91
0
6
33
100
35
4
92
0
6
58
100
41
4
93
0
13
58
100
43
4
94
0
13
58
100
43
4
95
0
13
58
100
43
4
96
0
13
58
100
43
4
97
0
25
58
100
46
3
87
0
0
0
5
I
3
88
0
0
0
25
6
3
89
0
6
II
55
18
3
90
0
6
11
65
21
3
91
0
13
33
100
37
3
92
0
13
58
100
43
3
93
0
19
58
100
44
3
94
0
19
58
100
44
3
95
0
19
58
100
44
3
96
13
19
58
100
48
3
97
13
31
58
100
51
2
87
0
0
0
5
I
2
88
0
0
0
25
6
2
89
0
13
II
55
20
2
90
0
13
11
65
22
2
91
0
19
33
100
38
2
92
0
19
58
100
44
2
93
0
25
58
100
46
2
94
0
25
58
100
46
2
95
0
25
58
100
46
2
96
13
25
58
100
49
2
97
13
38
58
100
52
87
0
0
6
5
3
88
0
6
6
25
9
89
0
19
17
55
23
90
0
19
17
65
25
91
13
25
39
100
44
92
13
25
64
100
51
93
13
31
64
100
52
94
13
31
64
100
52
95
13
31
64
100
52
96
25
31
64
100
55
97
25
44
64
100
58
B-5
Appendix B-5. Estimated percent habitat available in Newton Lake, August 18, 1999 (Segment I
=
3:
40 PM, Segment 2
=
3:50 PM, Segment 3
=
4:05 PM, Segment 4
=
4:25 PM). Habitat was
considered available if
it contained no less than the minimum oxygen or no more than the
maximum temperature indicated.
Minimum
Maximum
% Habitat Avai lable
Oxygen (ppm)
Temperature (OF)
Segment I
Segment 2
Segment 3
Segment 4
mean
4
87
0
0
24
95
30
4
88
0
6
24
95
31
4
89
0
6
35
95
34
4
90
0
6
56
95
39
4
91
0
12
56
95
41
4
92
0
12
56
95
41
4
93
0
12
56
95
41
4
94
0
12
56
95
41
4
95
13
18
56
95
46
4
96
13
38
56
95
51
4
97
25
38
56
95
54
3
87
0
0
29
95
31
3
88
0
6
29
95
33
3
89
0
6
41
95
36
3
90
0
6
62
95
41
3
91
0
12
62
95
42
3
92
0
12
62
95
42
3
93
0
12
62
95
42
3
94
0
12
62
95
42
3
95
13
18
62
95
47
3
96
13
38
62
95
52
3
97
25
38
62
95
55
2
87
0
12
35
95
36
2
88
0
18
35
95
37
2
89
0
18
47
95
40
2
90
0
18
68
95
45
2
91
0
24
68
95
47
2
92
0
24
68
95
47
2
93
0
24
68
95
47
2
94
0
24
68
95
47
2
95
13
29
68
95
51
2
96
13
50
68
95
57
2
97
25
50
68
95
60
87
a
18
41
100
40
88
0
24
41
100
41
89
a
24
53
100
44
90
a
24
74
100
50
91
a
29
74
100
51
92
0
29
74
100
51
93
0
29
74
100
51
94
0
29
74
100
51
95
13
35
74
100
56
96
13
56
74
100
61
97
25
56
74
100
64
B
-6
Appendix 8-6. Estimated percent habitat available in Newton Lake, August 3 I, 1999 (Segment I
= 5: I 0 PM, Segment 2 = 4:51 PM, Segment 3 = 4:33 PM, Segment 4 = 4:08 PM). Habitat was
considered available ifit contained no less than the minimum oxygen or no more than the
maximum
tem~rature
indicated.
Minimum
Maximum
% Habitat Available
Oxygen (ppm)
Temperature (OF)
Segment I
Segment 2
Segment 3
Segment 4
mean
4
87
0
19
66
100
46
4
88
0
25
66
100
48
4
89
0
25
66
100
48
4
90
0
38
66
100
51
4
91
0
59
66
100
56
4
92
25
59
66
100
63
4
93
25
59
66
100
63
4
94
38
59
66
100
66
4
95
50
59
66
100
69
4
96
50
59
66
100
69
4
97
63
59
66
100
72
3
87
0
31
66
100
49
3
88
13
38
66
100
54
3
89
13
38
66
100
54
3
90
13
50
66
100
57
3
91
13
72
66
100
63
3
92
38
72
66
100
69
3
93
38
72
66
100
69
3
94
50
72
66
100
72
3
95
63
72
66
100
75
3
96
63
72
66
100
75
3
97
75
72
66
100
78
2
87
0
38
66
100
51
2
88
13
44
66
100
56
2
89
13
44
66
100
56
2
90
13
56
66
100
59
2
91
13
78
66
100
64
2
92
38
78
66
100
71
2
93
38
78
66
100
71
2
94
50
78
66
100
74
2
95
63
78
66
100
77
2
96
63
78
66
100
77
2
97
75
78
66
100
80
87
6
38
78
100
56
88
19
44
78
100
60
89
19
44
78
100
60
90
19
56
78
100
63
91
19
78
78
100
69
92
44
78
78
100
75
93
44
78
78
100
75
94
56
78
78
100
78
95
69
78
78
100
81
96
69
78
78
100
81
97
81
78
78
100
84
B-7
Electronic Filing - Received, Clerk's Office, May 12, 2009
Appendix B-7. Estimated percent habitat available outside of Coffeen Lake cooling loop, July
21,1999 (time unknown). Data was obtained by Ameren. Habitat was considered available ifit
contained no less than the minimum oxygen or no more than the maximum temperature indicated.
Minimum
Maximum
% Habitat Available
Oxygen (ppm)
Temperature
(OF)
Location
FI
Location F2
Location G
4
87
0
0
4
88
0
0
4
89
0
0
4
90
0
0
4
91
0
0
4
92
0
0
4
93
0
0
4
94
6
0
4
95
6
0
4
96
36
100
4
97
53
100
3
87
0
0
3
88
0
0
3
89
0
0
3
90
0
0
3
91
0
0
3
92
6
0
3
93
II
0
3
94
17
0
3
95
17
0
3
96
47
100
3
97
64
100
2
87
0
0
2
88
0
0
2
89
0
0
2
90
II
0
2
91
17
0
2
92
22
0
2
93
28
0
2
94
33
0
2
95
33
0
2
96
64
100
2
97
81
100
87
0
0
88
0
0
89
6
0
90
17
0
91
22
0
92
28
0
93
33
0
94
39
0
95
39
0
96
69
100
97
86
100
B
-
8
Appendix B-8. Estimated percent habitat available in Coffeen Lake, July 23, 1999 (Segment 1 =
3: 1 0 PM, Segment 2 = 2:50 PM). Habitat was considered available if it contained no less than the
minimum oxygen 01' no more than the maximum temperature indicated.
Minimum
Maximum
% Habitat Available
Oxygen (ppm)
Temperature
(OF)
Segment I
Segment 2
4
87
0
0
4
88
0
0
4
89
0
0
4
90
0
0
4
91
0
0
4
92
0
0
4
93
5
0
4
94
10
5
4
95
14
10
4
96
19
20
4
97
24
25
3
87
0
0
3
88
0
0
3
89
0
0
3
90
0
0
3
91
0
5
3
92
5
5
3
93
10
10
3
94
14
15
3
95
19
20
3
96
24
30
3
97
29
35
2
87
0
0
2
88
0
0
2
89
0
0
2
90
0
10
2
91
5
15
2
92
10
15
2
93
14
20
2
94
19
25
2
95
24
30
2
96
29
40
2
97
33
45
87
0
0
88
0
5
89
5
5
90
10
15
91
14
20
92
19
20
93
24
25
94
29
30
95
33
35
96
38
45
97
43
50
B
-
9
Appendix 8-9. Estimated percent habitat available in Coffeen Lake, July 3 I, 1999, at the discharge
(upstream from segment
I midpoint) and dam (border of segments I and 2) temperature monitor
buoys (Discharge = 4:00 AM, Dam = ca. 4:00 AM). Habitat was considered available if it
contained no less than the minimum
ox~gen
or no more than the maximum temperature indicated.
Minimum
Maximum
% Habitat Available
Oxygen (ppm)
Temperature
(OF)
discharge
dam
4
87
0
0
4
88
0
0
4
89
0
0
4
90
0
0
4
91
0
0
4
92
0
0
4
93
0
0
4
94
0
0
4
95
0
0
4
96
0
0
4
97
0
17
3
87
0
0
3
88
0
0
3
89
0
0
3
90
0
0
3
91
0
0
3
92
0
0
3
93
0
0
3
94
0
0
3
95
0
0
3
96
17
17
3
97
17
33
2
87
0
0
2
88
0
0
2
89
0
0
2
90
0
0
2
91
0
0
2
92
0
0
2
93
0
0
2
94
0
8
2
95
0
8
2
96
25
25
2
97
25
42
87
0
0
88
0
0
89
0
0
90
0
0
91
0
0
92
0
0
93
0
0
94
0
8
95
0
8
96
25
25
97
25
42
B-10
Electronic Filing - Received, Clerk's Office, May 12, 2009
Appendix 8-10. Estimated percent habitat available in Coffeen Lake, August I, 1999, at the
discharge (upstream
from segment 1 midpoint) and dam (border of segments I and 2) temperature
monitor buoys (Discharge = I :45 AM, Dam = ca. 2:00 AM). Habitat was considered available if it
contained no less than the minimum oxygen or no more than the maximum temperature indicated.
Minimum
Maximum
% Habitat Available
Oxygen (ppm) Temperature (OF)
Segment I
Segment 2
4
87
0
0
4
88
0
0
4
89
0
0
4
90
0
0
4
91
0
0
4
92
0
0
4
93
0
0
4
94
0
0
4
95
0
0
4
96
0
14
4
97
0
29
3
87
0
0
3
88
0
0
3
89
0
0
3
90
0
0
3
91
0
0
3
92
0
0
3
93
0
0
3
94
0
0
3
95
0
0
3
96
0
21
3
97
10
36
2
87
0
0
2
88
0
0
2
89
0
0
2
90
0
0
2
91
0
0
2
92
0
0
2
93
0
0
2
94
0
0
2
95
0
14
2
96
0
36
2
97
10
50
87
0
0
88
0
0
89
0
0
90
0
0
91
0
0
92
0
0
93
0
0
94
0
0
95
0
14
96
0
36
97
10
50
B-II
Electronic Filing - Received, Clerk's Office, May 12, 2009
Appendix B-II. Estimated percent habitat available in Coffeen Lake, August 6, 1999 (Segment I
= II :50 AM, Segment 2 = 12: I 0 PM). Habitat was considered available if it contained no less
than the minimum oX.l;:gen or no more than the maximum temEerature indicated.
Minimum
Maximum
% Habitat Available
Oxygen (ppm)
Temperature (OF)
Segment I
Segment 2
4
87
0
0
4
88
0
0
4
89
0
0
4
90
0
0
4
91
0
0
4
92
0
9
4
93
0
36
4
94
0
45
4
95
0
45
4
96
0
45
4
97
0
66
3
87
0
0
3
88
0
0
3
89
0
0
3
90
0
0
3
91
0
5
3
92
0
14
3
93
0
41
3
94
0
50
3
95
0
50
3
96
0
50
3
97
6
70
2
87
0
0
2
88
0
0
2
89
0
0
2
90
0
0
2
91
0
9
2
92
0
18
2
93
0
45
2
94
0
55
2
95
0
55
2
96
0
55
2
97
6
75
87
0
0
88
0
0
89
0
5
90
0
5
91
0
14
92
0
23
93
6
50
94
1 1
59
95
17
59
96
17
59
97
22
80
B- 12
Electronic Filing - Received, Clerk's Office, May 12, 2009
--
u.
Q)
~
-
:::::I
CIS
~
Q)
0-
E
Q)
I-
110
100
90
80
70
60
50
Coffeen Lake - Discharge
(
,..,
,
I \
.
'
~
., v
:,'
.\'/
......
\."
-i.:-',
• to
...
\'
,.,
..
J..,
•
~
f
•
I
\
.\1
~
.,,
'
'v.l
~.
"
..
(
,
"
I;
'v"
;,~
;
,"
.
,;
r, (
•
l~~
~.I
..
.. t'
.
.
.
.:
'r
:
,
. "
.
.r"'V"'~·
):i
,~
..
:::~
,
\;
40 +1 --~--~r---~--
~--~---r---'---.----r-
--~--~
--~---r--~
21-
21-
20-
19-
21-
20-
20-
19-
19-
18-
17-
17-
16-
16-
15-
Nov Dec Jan Feb Mar Apr May Jun
Jul
Aug Sep Oct Nov Dec Jan
~
--Oft
1 ----·14~ft
l
Figure B-1. Mean daily temperature during 1999 at the Coffeen Lake discharge mixing zone. Lake bottom is approximately 42 .6 feet.
B-13
Coffeen lake - Dam
1
110
1
1
100
I
~
90 1
Al/~~
Q)
~
-
:::s
~
Q)
Q.
E
Q)
~
•
80
70
60
50
40
+1---.---.---.---.---.---.---.---.---.---.---.---.---.---.---.
21- 21- 20-
19- 21-
20- 20-
19-
19-
18-
17-
17- 16- 16- 15-
14-
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb
Figure B-2. Mean daily temperature during 1999 at the Coffeen Lake dam. Lake bottom is approximately 42.6 feet.
1 =~4ft~ft . 1
8 -14
Electronic Filing - Received, Clerk's Office, May 12, 2009
--
LL
-
e
::J
...
Q)
ns
Q,
....
E
Q)
Coffeen Lake - Intake
110
100
90 1
~.~
I \
• ,..I
,
(},
I \'
v,
I !
\,.
"-
80
70
60
50
40 +1 --~--
~--~--
~--'---'---
r---
r--''--'
--~
--~--
-r--
~--~
21-
21-
20-
Nov Dec Jan
19-
21-
20-
20-
19-
Feb Mar Apr May Jun
1~
1~
1~
1~
1~
1~
1~
1~
Jul Aug Sep Oct Nov Dec Jan Feb
Figure B-3. Mean daily temperature during 1999 at the Coffeen Lake intake. Lake bottom is approximately 42.6 feet.
1 =~4ft~
ft
.
I
8-15
Legend
_
0 - 1.232407888
D 1.
232407889 - 2.464815776
D
2.464815777 - 3 697223663
D
3.
697223684-4 .
929631551
D 4.
929631552 - 6.
162039439
D 6.
16203944-7.
394447327
7.
39444 7328 - 8.
626855214
D 8.
626855215 - 9.
859263102
0
9.
859263103
- 11 .
09167099
Figure C-I . Contour map of Newton Lake during 2003. Depth is indicated in meters.
C-I
1
2
3
5
0- 1.
232407888
\I 1- *
~".....-jI-
_
_
_
.1.L.
",=, 1.
232407889 - 2.464815776
D
2.
464815777 - 3.
697223663
D
3.697223664 - 4.929631551
D 4 .
929631552 - 6.162039439
0
6.16203944-7.
394447327
4
7.
394447328 - 8.626855214
D
8.
626855215 - 9.
859263102
D 9.
859263103 - 11.09167099
Figure
C-2.
Contour map
of Newton
Lake during
2003
showing plates illustrated in
following
figures.
C-2
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Electronic Filing - Received, Clerk's Office, May 12, 2009
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