ILLINOIS POLLUTION CONTROL !3OARD
May
1,
1980
VILLAGE OF HARTSBURG,
Petitioner,
v.
)
PCB 80—26
ENVIRONMENTAL
PROTECTION AGENCY,
)
Respondent.
OPINION AND ORDER OF
THE
BOARD
(by Dr. Satchell)
This matter comes before the Board upon a petition for variance
filed February 11, 1980 by the Village of Hartsburg.
The petition
requests for public water supply zeolite softening backwash a
variance from the requirements of Rule 203 of Chapter
3:
Water
Pollution
(Chapter
3)
as they apply to total dissolved solids
(TDS)
and
chloride.
On March 24,
1980 the Environmental Protection Agency
(Agency)
recommended that,
in addition, Hartsburg be granted a vari-
ance from the effluent standard for TDS contained in Rule 408(b)
of
Chapter
3.
The
hearing was waived and no public comment has been
received.
Hartsburg operates a public water supply serving a population
of about 363 persons
in Logan County.
The supply draws water from
two wells.
Treatment includes
zeolite softening.
The softener is
backwashed daily resulting in a discharge
of 2500 gallons
(9500
1)
throuqh a
120 foot tile to the point of discharge into an unnamed
ditch along the Illinois Central Gulf Railroad right of way.
The
ditch, 2.8 miles downstream,enters Sugar Creek, which
is tributary
to Salt Creek and the Sangamon River.
Hartsburg possesses NPDES permit No.
IL 0053082
for the
backwash discharge.
This permit expired December 31, 1979 and
is
not renewable in part because of violations of standards by the
backwash discharge
(Pet.
3, Ex.
III,
p.
3;
Rec.
1).
Grab samples
of the backwash have ranged from 1000 to 2870 mq/l TDS and 140 to
680 mg/i chloride,
in excess of the water quality standards of
1000 mg/i TDS and 500 mg/l chloride of Rule 203 of Chapter
3
(Pet.
Ex.
II).
Rule 402 of Chapter
3 provides that effluent not cause
water quality violations.
Since the railroad ditch is an inter-
mittent stream,
this
discharge constitutes its entire flow at times,
necessitating
a variance
from the water ouality standards
(Pet,
5)
The Agency had monitoring stations which were apparently eight
miles upstream and eight miles downstream of the point where the
unnamed ditch enters Sugar Creek.
From 1975 through
1977 these
showed 23 to 62 mg/l chloride upstream and 26 to 80 mg/l downstream.
This
is well within the Rule 203(f) water standard of 500 mg/l
chloride and indicates probable compliance with the TDS standard.
Hartsburg alleges that elimination of the softening unit would
be impractical because
the water would be undrinkable.
The un—
softened water would result in pipe corrosion, mineral deposits and
increased soap use.
This last could also cause septic tank problems
(Pet.
3)
No sanitary sewer
is available or anticipated which could re-
ceive the backwash
(Pet.
2).
Treatment for TDS and chloride would
involve either reverse osmosis or flash distillation which are
economically unrealistic
(Pet.
9).
Furthermore,
these treatment
techniques would produce concentrated brines requiring disposal.
Hartsburg’s point of discharge
is
77 and 140 feet from its
wells
(Pet.
3)
.
Since 1972 the chloride and TDS concentrations
in
Hartsburg’s raw water have increased considerably.
The Agency be-
lieves
the discharge point may be in the pumping cone of the wells
and therefore
a contributing factor to this increase
(Rec.
2).
In
the petition Hartshurg proposed to move its point of discharge 300
feet southeast.
The Agency believes this will still be
in the
pumping cone and asks that Hartsburg be ordered to consult with the
State Water Survey and submit a relocation plan for Agency approval
within ninety days.
Hartsburg proposes to begin regenerating its zeolite more
frequently, twice instead of once per day,
to reduce its discharge
levels
(Pet.
4).
The Agency contends that this would result in
more efficient softener operation and actually increase the amount
of solids discharged
in the backwash
(Rec.
2).
Since the effects
would be mixed the Board will neither require nor prohibit the
regeneration twice daily.
Although Uartshurq has not requested
it, the Agency recommends
a variance from the 3500 mg/i TDS effluent standard of Rule 408 (h)
(Rec.
2)
.
However,
of thirty-three samples,
none exceeded 2900
mg/l TDS.
Only one exceeded 2000 mq/l
(Pet.
Ex.
II).
The Agency’s
request that the Board grant a variance from Rule 408(h) will be
denied.
The Board will reciuire that Hartsburg’s discharge not cause
the water in
the receiving stream to exceed 2000 mg/l TDS.
—3—
Jiartsburcj’s discharge ranges
from 140 mq/1
to 680 mg/i chlor-
ide.
The second highest chloride concentration reported of thirLy—
four samples was 620 mq/l.
The Board will require that Hartsburg’s
effluent not cause the receiving stream to exceed 650 mg/l chloride.
This Opinion constitutes the Board’s findings of fact and
conclusions of law in this matter.
ORDEH
Petitioner, the Village of Hartsburq,
is granted
a variance
from the water quality standards for chloride and total dissolved
solids
(TDS)
found in Rule 203(f)
of Chapter
3:
Water Pollution,
as these apply to its discharge of zeolite softener backwash, sub-
ject to the following conditions:
1.
This variance will expire on March 31,
1985.
2.
Petitioner shall not cause the water quality in the
unnamed ditch to exceed 2000 mq/l TDS or 650 mg/l
chloride.
3.
Petitioner shall consult with the Illinois State Water
Survey concerning relocation of its discharge to a point
outside the pumping cone of its wells.
Within ninety
days of
the date of this Order, Petitioner shall present
to the Environmental Protection Agency for approval
a
plan for such relocation.
4.
Petitioner
shall stay abroast of current treatment
technology
for TDS and chloride and submit to the Agency
annual progress reports.
5.
Within forty-five days of the date of this Order, Peti-
tioner shall execute and forward to the Illinois Environ-
mental Protection Agency, Variance Section,
2200 Churchill
Road,
Soringfield,
Illinois 62706, a Certificate of
Acceptance and Agreement to be bound to all terms and
conditions of this variance.
This forty-five day period
shall be held in abeyance for any period this matter is
being appealed.
The form of the Certificate shall be
as
follows:
CERTIFICATION
I,
(We)
,
_________________________________,
having
fully read and understanding the Order in PCB 80-26,
hereby accept that Order and agree to be bound by all
of its terms and conditions.
—4—
IT
IS SO ORDERED.
SIGNED
TITLE
DATE
I, Christan
L.
Moffett, Clerk of the Illinois Pollution
Control Board, he ~by
certify the above Opinion and Order were
ado ted on the
‘~
day of
(Y\
,
1980 by a vote
of
_______.
Illinois Pollution Co t ol Board