United States
Environmental Protection
Agency
Office of Water
Regulations and Standards
Washington, DC 20460
EPA 440/5-88-061
September 1988
———————••——^__
State Water Quality
Standards Summary:
Montana
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DISCLAIMER
This oublication was T
the
This publication was prepared by Battelle under contract to
U.S. Environmental Protection Agency (Contract 68-03-3534^
h?rj inforrti0n 8°UrCeS Were U*ed to compile data presentld
^ ^cument. Each State was given an opportunity tl review
o event R£0?Tnt^0n a draft of this information documen? In
no event shall either the United States or Battelle have anv
tne^Jnfori1^ ^ "^"j £«* ™* «••• »!•«••. or reliant upSn
otL™ co^tained herein, nor does either warrant or
otherwise represent in any way the accuracy, adequacy efficacv
or applicability of the contents hereof. ^acY. etticacy,
The reader should consult the water quality standards of a
particular State for exact regulatory language applicab" to tha?
State Water <3ualitV standards may be obtained
P°llution C<»*rol Agency or its
Additional information may also be obtained from the
Standards Branch
Criteria and Standards Division (WH-585)
Office of Water Regulations and Standards
U.S. Environmental Protection Agency
Washington, D.C. 20460
202-475-7315
This document may be obtained only from the National Technical
Information Service (NTIS) at the following address:
National Technical Information Service
5285 Front Royal Road
Springfield, Virginia 22161
703-487-4650
The NTIS order number is: PB89-I41931
r
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MONTANA
Responsible Agency: Sta*-« r> «-
Montana State Dipt, of Health and Env. Science at«t:e Contact!
Capital Station
Helena 59601
406-449-2406
Standards Available From: State C«rH-*i-+.
Steven Pilicher, Chief, Water Quality Bureau stat. Contact:
Dept. of Health and Envir. Sciences
Capitol Station
Helena 59*01
406-449-2406 Fee: Hailing List: no
State Narrative Language For: Toxics
State Narrative Language Fors Free From
or
to
lit!r"1S *"* '" ««lc =r l»r.fu, u, h,™, «„,. ,,„, „
E. Create conditions which produce undesirable aquatic life.
For: Low Fl
ow
State Narrative Language Fori Mixing Zones
' """ - — -' ..... '
MT-1
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MONTANA
Classifications:
A-Closed
Classification
fl-i Classification
•"-• — - -
B-l Classification
B-2 Classification
B-3 Classification
C-l Classification
C-2 Classification
C-3 Classification
MT-2
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Physical
pH
Upper Value
Lower Value
Dissolved Oxygen
Loner Value
Teaperature
Upper Value
Teiperature Change
Upper Value
Secondary Upper Litit
Turbidity
Upper Value
Nutrients
Toxic Hetals
Arsenic
Upper Value
Cadiiui
Upper Value
Iron
Upper Value
Pesticides
Qrganics
Bacteria
Fecal Cdlifori
Upper Value
Total Colifori
Upper Value
All
Classes
MONTANA
A-Clcised
Narr.
Narr. site-spec.
Narr. site-spec.
Narr.
ft-i Classificat.. B-l Classificat.
8.S
6.5
7.0 ig/1
Narr.
1
0.5
Narr.
8.5
6.5
7.0 ig/L
Narr.
i
0.5
Narr.
Narr.
Narr.
Narr.
MT-3
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MONTANA
Physical
PH
Upper Value
Loxer Value
Dissolved Oxygen
Lower Value
Teiperature
Upper Value
Teiperature Change
Upper Value
Secondary Upper Liiit
Turbidity
Upper Value
Nutrients
Toxic Hetals
Pesticides
Organics
Bacteria
Fecal Colifort
Upper Value
B-2 Classified. B-3Classificat.. C-l Classificat.. C-
2 Classificat.
9.0
6.1
7.0
Narr.
1
0.5
•g/L
F
F
9.0
6.5
5.0
Narr.
3
0.5
•g/L
F
F
8.5
6.5
7.0 ,
Narr.
1
0.5
•g/L
F
F
9.0
6.5
7.0
Narr.
1
0.5
•g/L
F
F
Narr.
Narr.
Narr.
Narr.
Warr.
Narr.
Narr.
Narr.
WT-4
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MONTANA
C-3 Classificat.,
Physical
pH
Upper Value
Lower Value
Dissolved Oxygen
Lower Value
Teiperature
Upper Value
Teiperature Change
Upper Value
Secondary Upper Liiit
Turbidity
Upper Value
Nutrients
Toxic Metals
Pesticides
Organics
Bacteria
Fecal Colifon
Upper Value
9.0
6.5
5.0 ig/L
Narr.
3
0.5
Narr.
Narr.
MT-5
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