ILLINOIS

POLLUTION

CONT~OL BOAP~D

May l~3,

1984

IN

THE

MATTER

OF:

PROPOSED

AMENDMENTS

TO

TITLE

35,

)

R83—6

(Docket

A)

SUBTITLE

D:

MINE

RELATED

WATER

POLLUTION,

CHAPTER

I,

)

PARTS

405

AND

406

PROPOSED RULE.

SECOND NOTICE

ORDER OF THE BOARD

(by J. Marlin):

On December

15,

1983 the Board adopted a Proposed

Opinion and Proposed Order amending

35 Iii. Mm.

Code 405

and 406.

The proposal appeared at

8 Ill,

Reg.

78, January 6,

1984.

On March

6,

1984 the Hearing Officer extended the

comment period and allowed an additional hearing.

A written

public comment was received in two pieces on March 20

and

26,

1984,

from the proponents acting through the Mine Related

Pollution Task Force.

A public hearing was held on April

13~,

1984,

at

which several witnesses testified on behalf of the

Mine

Related Pollution Task Force.

Following the hearing,

additional written comment was received from the Mine Related

Pol~~ution

Task Force.

The Board has modified the proposal

in response to this comment and testimony.

The complete

text of the proposal

as modified is attached to this Order.

Striking

and

underlining

reflects

changes

from

the

existing

text,

rather

than the first notice proposal.

The Board hereby

adopts

the

Order for Second Notice.

Because of its length,

this Order, will not be published, but will

be distributed to

participants~.

The Final Order

will

be

published

in

the

Opinion

‘7o1ux1~es

IT

IS

SO ORDERED.

Poard

~~ember

B. Forcade concurred,

I.

Christan

L,

Moffett,

Clerk

of

the Illinois Pollution

C~troi

Board,

her~y

certify

that

the

above

Order

was

~dopted

on

the

j~

day

o~

~

l9~4 by

a

~iote

of

~—ô

(,)

Illinois Pollution’

Board

58-159

---

ILLINOIS

REGISTER

POLLUTION

CONTROL

BOARD

TEXT

OF

ADOPTED

AMENDMENTS

FOR

CODIFICATION

TITLE

35:

ENVIRONMENTAL

PROTECTION

SUBTITLE

D:

MINE

RELATED

WATER

POLLUTION

CHAPTER

1:

POLLUTION

CONTROL

BOARD

PART

405

STATE AND NPDES PERMITS

Section

405.100

Preamble

405,101

Special Conditions;

Agency Guidance Document

405.102

Standard

for

Permit

Issuance

or

Certification

405.103

Permit

Modification

When

New

Regulations

Are

Adopted

405,104

Permit

Applications

405.105

Surface

Drainage Control

405.106

Refuse Disposal

405.107

Experimental

Permits for Refuse Disposal

4o5.:to8

Permit for Use of Acid Producing Mine Refuse

405,109

Abandonment Plan

405,110

Cessation,

Suspension or Abandonment

405,111

Emergency Procedures

to

Control Pollution

405k, 112

Mine

Entrances

405~1iT

Permit Area

~hy~e~e

AUTHORITY:

Implementing Sections

12 and

13

and authorized by Section 27 of

the

~

Environmental

Protection Act

(Ill.

Rev.

Stat~.~9~9

1983,

ch,

111

1/2,

pa~:~

1012~~

1013 and 1027) ~e~e—eeee~e~,

B~~~Ne~e

SOURCE:

Adopted in

R76-20,

.R77-10~~~196

~

i3. 1,

Reg.

~e-

34, p.

164, effective August

7,

1980;

~c~r1iiied

at

5

Ill.

Reg.

~e7—~4~-’p~

8527;

e~e~e—~—~y

~

~d~4inR83~-6Aat8i11.Re~

c.ffective ______________________

~tio~

405

~109

Abandonment

Plan

A state

or

NPDES

permit

shall include an abandon-

ment plan as a condition,

~

An

abandonment

plan

shall

he

incorporated

into

the

permit by reference if it~

Includes

a

time

schedule

establishing that

the abandonment plan will he executed and

completed within e~e-ye~—ae~e~

58-180

---

a

reasonable_Umeafterabandonmtcon~rinc

~

din

c

om

letion_of the

Ian

and the amount

i~

tired

carr

out the

tes

in

he

~~jon~~rJsassumedto

be

a

reasonable

~

ta

~

and

2)

Meets

the

standard

of Section 405,102;

and

~

~

discharge

to

remainafterabandonmentwill

meet the rrement

35

Ill.

Adm.

Code

406.106(b)an~jQ9~2rif~~mit

included wat~~ali~based_conditions_under

35111

.Adrn

~

mm ~

ments of 35

Iii. Adm. Code 406,106(b)

and

406,.203(c)(l)

and(c)(2) and

~

~

~~undment

s~,

whichwillremainafter

abandon-’

and which

will

no

t

meet

the

water

ualit

standards

of

35

Ill. Adm,

Code

302.204

or

~

of

35

Ill,

Adm,

Code

406,106(b)

and

406,203(c)(l)

c)

33

if ~

the abandonment ~

does not meet

the

standard of Section

405,102

the Agency may either

deny

the

permit

or

issue

it

with

an

abandonment

plan modified by conditions

subject

to

Section

405.101.

d)

43 The time

limit

provided by ?eetie~4OSw~O9

2!~!~2fl(b)(1)

is inapplicable to abandonment

plans for surface coal mines which are approved as

reclamation plans under the Surface Coal Mining

Land Conservation and Reclamation Act,

e+e) Any abandonment plan constituting a substantial

change from

the

permitted abandonment plan is a

revised

abandonment

plan.

d+f) A permittee shall apply

for

a

new

or

revised or

supplemental NPDES

or

state

permit prior to imple-’

mentation

of

a

revised

abandonment

plan

within

the

time

limits provided by

Bee~e~35

Ill.

Adm.

Code

403,104(c).

58-161

---

~donmanincorora~din~~mit

~ttoshowinunder35Ill,Adrc~.code4O6,2O3

~

1~Adm~

Code_406.203(e)(1)

and_(e)(2),

(Source:

Amended

at

8

Ill,

Reg.

,

effective

Section 405.110

Cessation,

Suspension

or

Abandonment

a)

A

permittee shall

notify the Agency in writing by

certified mail within

thirty days of any of the

following:

1)

Abandonment;

or

2)

Cessation or

suspension of active mining

for thirty days

or more unless caused by

a labor dispute.

b)

During

cessation or

suspension of active mining,

whether caused by a

labor dispute or not, the

permittee

shall provide

whatever interim impound—

ment, drainage

diversion and wastewater treatment

is

necessary to avoid

violations

of the Act or

?~~e

B7

?hap~e~

~

this

~

c)

Upon

abandonment

the

permittee

shall

execute

and

complete

the

permitted

abandonment

plan;

provided,

however,

that the

permittee need not execute and

complete

the

permitted

abandonment plan if the

abandonment

arises

solely

from

transfer

of

owner-

ship

to

a

responsible

party.

d)

A

responsible

party

is a person

who

holds

a

state

or NPDES

permit and

all

other

necessary

permits

for the

same

facility.

If

such

permit

is

issued

subsequent

to the

transfer

it

shall

relieve

the

transferor of the

obligation

of

further

executing

the

abandonment

plan,

e)

Upon

request

by the permittee

the

Agency

~hal1

issue

a certificate

of

abandonment

whenever

a~

armittee demon

trates

th at

:

58-162

---

-‘5-’

f)

1)

The abandonment plan

has

been

satisfactorily

executed; and

~

~uiremeutsof_Sections

405,109 (b~

and

(b)(4)

have

been

met,

Refusal

to

issue a certificate of abandonment is a

permit denial

for

purposes

of

appeal.

(Source:

Amended

at

8

Ill. Reg.

_____

effective

TITLE

35:

ENVIRONMENTAL PROTECTION

SUBTITLE D:

MINE RELATED WATER POLLUTION

CHAPTER

I:

POLLUTION CONTROL BOARD

PART

406

MINE

WASTE

EFFLUENT AND WATER QUALITY STANDARDS

SUBPART

A:

?ENER~ EFFLUENT ANB-WA~ER

~

STANDARDS

Preamble

Averaging

Sampling, Reporting and Monitoring

Background Concentrations

Dilution

Violation of Water

Quality

Standards

(Renumbered)

Effluent

Standards

Offensive Discharges

Non—point Source Mine Discharges

SUBPART B:

B

?-‘BP??I

B—B

?N~—AN~

WATER

QUALITY STANDARDS~-’MP9R~-’RB~EB

Section

406,201

406

202

406,203

406

204

406.205

406..

207

406.208

406.209

Temporary

Exemption from

Section

406.105

(~~~d)

Violation_of

Water

Qualit

Standards

TDS

Related

Permit

Conditions

t3ood~nPr~tices

Contact

with Disturbed Areas

Retent

ion_and_Cont rol,

of

Ex

osed

Water

~

Unconventional Practices

~

Section

406.100

406,101

406.102

406,

103

406,104

406,105

40 6.106

406~l07

406.

108

58-163

---

-‘6-’

AUTHORITY:

Implementing Sections

12 and

13 and authorized

by Section 27 of the Environmental Protection Act

(Ill, Rev.

Stat. ~9~9 1983,

ch,

ill 1/2, pars.

1012,

1013 and 1027),

SOURCE:

Adopted ~

39PCB 196

at

4 Ill.

Reg.

34,

p.

164, effective August

7,

1980;

codified at

5

Ill.

Reg.

8527; emergency amendment in

R83-’6B

at

7 Ill,

Reg.

8386,

effective July 5,

1983,

for a maximum of 150 days;

amended in

R83-’6B at

7 Ill.

Reg.

14510, effective October 19,

1983;

amended in R83~6Aat

8

Ill, Reg

______,

effective

SUBPART A:

?EN?RA~ EFFLUENT AMB—WATEP.

~

STANDARDS

Section 406,104

Dilution

a)

Dilution of an effluent from a treatment works or

from any wastewater source is not acceptable as

a

method of treatment of wastes in order to meet

the

effluent standards set forth in this ~art.

Rather,

it shall

be the obligation of any person

discharging contaminants of any kind to the waters

of the State to provide the best degree of treatment

of wastewater consistent with technological

feasibility, economic reasonableness and sound

engineering judgment,

b)

in

making

determinations

as

to

what

kind of treat-’

ment is the best degree of treatment within the

meaning of this pe~ag~aphSection, the following

will

be considered:

1)

What degree

of

waste reduction

can

be achieved

by process change,

improved housekeeping and

recovery of individual waste components

for

reuse; and

2)

Whether

individual

process wastewater streams

should be segregated or combined.

c)

if

necessary the concentrations so measured shall

be recomputed

to

exclude the effect

of

any dilution

that

is improper under this Section.

(Source:

Amended

at

8

Ill. Reg.

____

,

effective

____

58-164

---

Section

406.105

Violation

of

Water

Quality

Standards

(Renumbered)

(Source:

Section

406,105

renumbered

to

Section

406.202 at

8 Ill. Reg.

,

effective

________

Section 406.106

Effluent Standards

a)

The

effluent

limitations

contained

in

Pe~

35

Ill,

Mm.

Code

304

eB-’Se-’?~-’-’Water—Pe~ian

shall not apply to mine discharges or non—point

source mine discharges.~

b)

No

person

shall

cause or allow a mine discharge

effluent

to

exceed the following

levels of con-’

taminants:

c)

~

~

Nnot

subject

to

averaging.

d)

9Theammon~nit~~~tandardis

Aapp 1 icabl e

only

to

an

operator

utilizing

ammonia

in

waste—

water

treatment,

e)

3Any overflow,

increase

in volume of a discharge

o,r discharge from a by—pass system caused by

precipitation or snowmelt shall not be subject

to

Storet

Number

Constituent

00435

Concentration

(total acidity

shall not exceed

total alkalinity)

Iron

(total)3

01045

3.5 mg/I

Lead

(total)3

01051

1

mg/I

Ammonia

Nitrogen

(as

N)273

00610

5 mg/I

PH~T8

00400

(range

6

to

9)

Zinc

(total)3

01092

5

mg/l

Fluoride

(total)3

00951

15 mg/i

Total

suspended

solids3

00530

35

mg/i

Man~n~e

01055

2.0

~jjj~

---

—8—

the

limitations

of

this

Section

eevere~—by-’th~

feeteete.

This

exenption

shall

be available only

if

the

ei~ity

sedimentation

basin

or

treatment

works

is

designed,

constructed

and

maintained

to

contain

or

treat

the

volume

of

water

which

would

fall

on

the

areas

eevefe4-

-~h4e

~bpert

~~~tar

~

during a 10-year,

24-hour or larger precipitation event

(or snowmelt of

equivalent

volume).

The

operator

shall

have

the

burden

of

demonstrating

that

the

prerequisites

to

an

exemption

set

forth

in

this

subsection

have

been

met,

f)

~

neefflentlimitationis

ap~~ble

2~~isch~rges frorn facilities

where

chemical

ion is re uired to

me et

the

ir on

or

H

effluent

limitations.

The

~

H

shall

be

10

~

lwith~nanese~tatH9,

is not alic ab

le

tomine

dis char

which

are

associated

with

areas

where

no

active

oce s

~

s

taken

~ince

Ma

13,

1976

(Source:

Amended

at

8

Ill.

Reg.

______

,

effective

SUBPART

B:

SITE

SPEBIPIG

EPP~ENT AWE

WATER

QUALITY STANDARDS; !EMP9RARY-RE~EB

Section 406,201

Temporary Exemption from Section 406.105

a3

!ke-Ageney-’may—hy—peem-’p~eve-a-~&--~ine

eeha~ge-eka—be-exeMpt-’eM-’the-’~-eq4feM~--~

~

aed—manganeee~

h3

A-peemittee-

~

e+

~

the—~?eewg—ee—a~e—met~

58-166

---

~i~h’~

-~

~aev eet-’demee—ethgnt~~

!‘4~th

~—eeee4venei--wate~

~3

The ~

ee4~-at--the--dee~e-’wI-’~et-’advereeIy

?e-aey—p~Iie-’wate~-pp3yt-’an~

33

The —peem±teee-ek~bms-’te-the-Age!~ey—p~e&f

that—i—

g—geed—miaie~-pfaetieee

desigeed— te-’

me-±5ehaege—e~—t~e-’pa~affi—

etere

te-’he—exempted-~

~3

~

?emieaee-’with-the-eo8e-’e~-gee~-mi—p~&e~ieee

she

e—peima-daeie—eve~ee--~he-peemittee

is-ut

e—geed-miai-’p~ae~4eee-’within-the

meaeiae—ed—euhpeeageaph-’fe++3+~

e+

Whecevee—the

Ageaey—iues—a-’pefmi~—exe~~--e

peemit~’ee-’em-Eeetiea-’4B?7-’-’ss~l-I—i~eIude

ia—the—perr et—eueh—eeioss—ae—mayThe—seeeseaey

te-~eae~ue—thet--the-

pee

ee—iIiees-’gee~—m±ag

eeteees—desigaed~--te—m4e4me-’~isehaege—e~—the

pasametere

ewemptedT

B3

Thtee-~

u±j—37—84y—the-’exep~iea—evi~ed-’~n—this

beeui

~ -4~

4 ~99i

-ehall-teemimatey

Pepea?e~ a~

8

112,

Reg.

_____,

effective

—~

Section

40C,202

~o~a~ior

of

Water

Quality

Standards

ir ~ciditiontc

-i

o~~r

requirements

of

this

Part,

no

mine

Aisci

.rge

~r

~r)r—qo

ut

surce

mine

discharge

shall,

alone

or

in

c~biuatiin

w~-A

other

sources,

cause

a

vrolation

of

any

ate.

quality

;

andard~s of

?uhtitle_?y_?haptee_I*__Watee

~

~

When

the

Agency

finds

that

a

‘~L~c.

~arge

wAtch

would

comply

with

effluent

standards

contcL~

d

~n

this

Part

would

cause

or

is

causing

~i

vioUtioc

of

w&er

quality

standards,

the

Agency

shall

take

app~opr1atE

c

~Fion

t~der

Section

31

or

39

of

the

FnvironmentaJ

Protection

Act

to

require

the

discharge

to

meet

what~er

effluent

limits

are

necessary

to

ensure

coaplicnce

wito

Ihe

~te~:

quality

standards,

When

such

a

violation

i~s

causcd

oy

the

cumulative

effect

of

more

than

one

source1

sevrtal

sources

may

be

joined

in

an

enforcement

or

variance

proceedin~

arid

neasures

for

necessary

effluent

---

reductions

wil

he

det?~rined

on

the

basis

of

technical

feasibility,

ec~vmi~.reasonableness

and

fairness

to

all

dischargers

~P~iee-’te-’eed±iieatiea~-

~

(Source:

Renumbered

from

Section

406,105 and amended at

8

111, Reg.

,

effective

~

Section

406,203

TDS

Related

Permit

Conditions

~

~

~t-basedermitcondjtjonsfortotaidisso1ved

~ds

~ride

and

sulfate ma

be established

~enc,Theseroceduresalinsteadof

~tior406.202wheneveraermitalicantelects

~ce

e~de

r

this

Sect I

on

A

armittee mus

t

~

for

total

dissolved

solids

ch1orid~lf~~ei~o

~ishad

ursuant to this Section

instead

of

~

~nt

to

35

Iii,

Adm

Code

309.

115

b)

~~pi

~

~uiredinformationa~~f

a

aew

or

re~ we

lementais

~

~2aLa~ic~

~

~

~

1)

$hedJl~cubmjh~enc~deuate

aroo

~hat

di soher

a

ill

not

can se

an

~dVPTbC

effect

on

the environment

in

and

aro~jn

~the~,~ivinstreambeither:

A

~

ritain

a

concentration

less_than

or

eq~ato35QQ~~u1fateand1O0O~ji

ch

orid~j~r

~

~ouhactuai

stream

stud ice

if

the

~

aoo~e these

levels.

58-168

---

i~ntsubmdtstotheA~cy~~te

~

I

~.

2

the

di ~gflarewiU

not

adversejj

iir~

~biicwaters~p~d

3)

~ie a-~)icant s

ubmits

t9~en~~proof

2hat

H~is~izinoodmininL~ractices

docncd~j1inimiz~isch~9~ftotal

dt~sc.-ied4ds~~orid~j~ifateiron

d)

~

405,161(c)

a

co

odniati

ces

consistent

with

the

~

~th

ode

of

ood

mm

in

actices

hall

he

ima

~

~

3U

a)

~henevaro

i~

~

this

Sectirn,

it

shall

include

such

conditions

~m~be~ecess~arto

ensure

that:

1)

There

IS

no

adverse effect

on_the

environment

a

a~~here2!i~instr~

2

U~e

cc ~

:~

caa~l;~d

3)

a

~e~rmi~

cc ~a

~ed

to~

nimizedischareof

total

~ed

solids,

chloride,

sulfate,

iron

and

f)

Whenever

the

~cissue~2~tu~suantto

inclu de

as

a

ondit ion

a

r~er

that

rmittee_submit to the

eit luent

data

for

total

dissolved

sol ide

,

cbL.

a

i thtc~on

and man.a~nese.

~rJ, Rag0

___

,

effective

2

c4

~nin~

Practices

IndetermiJ~

~

~aer

~

~ctices~eaigae

~tomthimizedischar1~tal~isso1ved

solids,

oh: or rUe

in

a~

58-169

---

—12--

shall consader .be~re~2risu~i1i~j~he

~winq~pod

r. at ~

~

further

defined

in

the

Sections_mdi ~a4

a)

Pract ~s

w’ c

~too~inimi~,~ater

from ccmin~into contact with

di s

turbed areas

(Section 406,205);

b)

Retenti~c~nd ~ontrol within the site of waters

~

disturbed materials

(Section 406,206)

~

Control and treatment of

waters

dischar

ed

from

the site

I Section~~j

~

Unconventional ~

(Source:

Added at ~ 211

Peg.

_______,

effective

Section 406205

C’

act with

Disturbed

Areas

~siderir~

~orisutilizinractices

ir

r

rLfromc2~ini~~onta2~

with disturbed aaaac

~

to which the

eia~

-

is

u~J~izin~rosion

controls, inc1udir~gj

a)

DivercLc~

S

a

~s~ec~n~onve

aoua~I~th~toarecei~instr~m

waers

that would otherwise flow

over or

thon A d~sturbed_areas,

2)

C

-~

~s

to

conve

water

around

or

ov~

~

~

are~

undermined

areas

a

A

the

surface,

3j

I

a

lOt diversions to

isolate

on—site

A

Cc

-

~

~oi ~

~qja

~~ccess

roads,

I

Staqina ~

~

~n

~

concurre~~traction~~ra—

i

~,

and a minimum disturbed surface area

S e~oseQ~ne

time,

58-170

---

13—

2)

~e-soi;

a~ad~ents

and inclines to the active

a..

‘nort as~ossib1ein order to minimize

2

~

coT

~

IL

~

reve~Lioa

~

tial

or

exoos

in

material

!ch

ma

roduo a

total

dissolved

solids,

4)

Sea lir~

rbo~~ac~nasc~duits

allow

rag~

~heuncont

roiled

entrance

of

water

to

under ~

~

of

surface

mines,

5)

~

~~uiLicien

t

barrier

s

wheneve rmIn~p~

t

~

tnat~yj3e

inundated

with

water.

6)

~po

~

mater

3~

~sossibieia~sthat

will~r

hibit

or

minimize

contact

with

surface

an~qr

U :awater,

7)

Cov~~

~rodu0aa-~

materials

so

as

to

minimize

adverse

effer~

~9,~eruali~~,

8)

Seal

~c

a

~ieldi~r~re

zones

ear

S

durinq

iindenrrmi~~

ound

mm

in

to

is

ar~ilpwofhih total dissoived

so lid. ~

succ~

—

s

ml

sea

gand whcn the flow

from

thea

c~

~ezonecontributess~~fica~

tofu-

~a~al

dissolved solids load_in the

mi

~

(Source:

Addea

~

keg,

,

effective

---

Section

6

~

~S2~~derin

whether

a

i ~

j~nt~~etertho~

o

2

control

within

the site of

~

consider

the

extent

tow

sthe~

rat2L

is utilizin

a)

Eras

ion

Contro Is-

~

of

disturbedril

surfaces to reduce and

detain

runoff,

b)

Sedimentation

~nt.

~

~~g~tio~r

combination

of

wastewater

and

mine

runoff

waterth

~iaimizeapyeffecj~eivi~

~mualit.

c)

Reuse

of ~

concentrations

~

p~ssi

hie,

includ iqg~j~

1)

RecircuiaLi~

sto

rec

cle

water to the

~

~

2)

Recircdd

icr~~orovid~aterf2~

tI dust

control,

IL

Holth

i~

~

to

ree lamed

jand

an

dL2r

ad

~acent

op land

with

tc~erances~~~~

hi

her

concentrations

of

t(tc

i~,olved

solids,

d)

mm~mEx~~ureofWaters

to

Disturbed

Materials:

1)

~~ic~-i

cooS

~man~mentracti~g~s

either

a

~

in

order

co

minimize

water

contact

with

disturo~

aeterials.

2)

Preieathcn

ot

accumulation

of_waters in

active

~r

s

aches

tar races

roads

r2ces-’

~g~area:

s~a~deressionsandunder-’

c

~

dissoliri.

ri of contaminants

will

be

facilitated.

II

RemovaL~I

~t9~i~sionsandaroria~e

~

additior~

1caS~~

of total

dissolved

sol ide,

(Source:

Added

at

8

T1j.~

teg.

effective

---

Section

406.207

(a

~cc~~Waters

sid~in~hettht

-

.eratorj~ut~zinractices

l~ntocon~troi

~

from

the site

containin~e~~

levels_of

total

dissolved

solids,

ch 1 or

ideor

~

I

i‘~p

~1~~aUconsiderthe

extent

to

which

the

end~

oriu~ILzi~aj

a)

~~tipp

2

d1sch~henoth~~2ntr2Lm~hods

are

insuffith

rt

aid

chemical

treatment

is

economi—

~rifea

~

~udin:

1)

Requlatn

~

total

iAcsthsed

solids in accordance with

fluctuati

p

~~ermitt~tr~m

flows

so

that

tOe

concentration of total dissolved

solids

~eaiarns

within established

water

r

ndards;

or

2)

Peqiac

r

-

f5e

flow

or

fl uctuationof

race iv—

by~~ei din2

her

e

of

water

f

exis

c

~j~oundments

which

have_suitable

disc~0

u

“cotrol

structures.

b)

ReroutJ1.c

a~

involvinc

-

thg2h~e~ndcon~einthem

to

mores

t~r

~

di~

ech

ho

ldi~

2

2

o

~d’acen~o

more suitable

~2~vin

a

r

where

dilution

and/or water

-.

(Source:

Added

at

8

~L.

Peg.

___,

effective

_________

Section_406,208

ertional

Practices

~~iderir:whe

t

:‘

~

srato~J~~iiizinunco~ventionai

practices

to

~ycot

tJ~~discharej2felev~ted

levels

of

total

di s~

-?

I

al

~~loridean~jsulfate,the

~

ball

cons a~

tent

to_whndht~~ratoris

utUizi~

~j

Diversica

iwate

interce

tin

the

flow

-

inac~~u!iderr2~nd

mine

when

IL

th~rminedbth~in~eratorto

beeconoai~c

~.

I I ~

pre~cab1e~otreatinj~9ntami~1ated

water

aft~

~ses~~uh

amine,

b)

Dewaterin~’~

;es

that

remove_clean

formation

water

be f~

~

anco ~i

ric toxic and_total

di ssolved

---

—16--

~p~4dsro~

~

theoretic~.

e~h

~ues

which

cart

be

em Ia ad to

ea

aç~u~3tiei~~s

1nor

der~

r

toreduce

the

amountofw&a’m

~te~in

amine.

c)

~y~itiona

practices

which

the

operator

demon-

strates

to

be

effective

in reducin

els

of

total

disso~vsd

solids,

chloride,

sulfate

iron and

~

(Source:

Added

at

8

Ll

keg.

_______,

effective

Section 406.209

Exj~irationofFo

rmerExert~jons

a)

~

pt.

0

iom the

water

gualitj~ standards_granted

~

to

the

effective

date

of

Section

406.203

shall

continie unt

of

the following events

occurs:

1)

~~a-eorNPDES~erm

it

for

the

facility

~

r

is

revokedL

renewed

or

reissued;

2)

~

for

the

facility is

modifie,

unless

the Agenqy expressly continues

the

exenpcion~p~nding

review

pursuant

to

3)

~p~p

cAi~~eriod

set

pursuant

to para—

4)

The

Ace

nay

~

Sect2c~ 4~e~203; or

5)

January

1

-

987,

the

final

date

for

continuation

of

fo

a

exe~~ons.

~

~

ccg~pp~icat

ions

for

review

a

40~20~~notifin~

individual

~

~ettin

a

date

for

a

lication not

less

than

15

~

~J

~~oa~aJ

th

the

Board

is filed,

exemptions

continue

unt

~

t-e

Board enters a final

order

a

(Source:

Added

at

6

And,

_____,

effective

_________