Unitod StatM
environmental Protection
Agency
Office of Water
and Standards
Washington, DC 20460
EPA 440/5-88-038
September 1988
State Water Quality
Standards Summary:
Colorado
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DISCLAIMER
the SI*
?
*' °* Battelle
responsibility or liablity fr anv u!!*' °* Battelle have .any
the information contained herein nor'd«1SUSS- ^ reliance upon
otherwise represent in inv w.v Ii S either warrant or
or aPPlicabi?ilyeof tS
of
State. Copi.. 0£ t w.vmJgU;9^'PPllcilblft to
state's
Additional information may also be obtained from the
Standards Branch
criteria and Standards Division (WH-585)
51!6 ? ater Re^lati°ns and Standards
U.S. Environmental Protection Agency
Washington, D.C. 20460
202-475-7315
Thi. 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: PB89-1417Q9
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COLORADO
• —
Responsible Agency
Colorado Departimt of Health
Hater Quality Control CoMinion
4210 East llth Avenue
Denver
303-331-4525
90220
„ ^
. n Contacts
Anderson
Hater fluality Control Division
Colorado Department of Health
«10 East 1 1th Avenue
Denver 80220
303-331-4571
Fro<"
Hater Quality Control Cooission
Colorado Departient of Health
4210 East llth Avenue, Root 319
Denver 80220
303-331-4525 Fee: varies Hailing List:
yes
'='
State Narrati
ve Language Fors Toxics
State Narrative Language For: Free From
of undesirable aquatic life; or
on shorelines.
State Narrative Language Fors Low Flow
TIOH exceptions lay be based on periodic or seasonal flow. The length of the periods .ill be
00-1 •-
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COLORADO
deteiined on'a case-by-case basis by the Division.
State Narrative Language For: Mixing Zones
wnirn ie Ha«3ninn fn ft.. ..._...>. • _j. r - "c iiiv.ict iBIBO man to a oeflrie
°ot
"*1U-
potential groundMter aquiftr contuination shall be considtred.
'"" by othtr concerns and documents. ^^
w
C02
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COLORADO
Classifications!
Priiary Contact
Recreation
Class 1
Secondary Contact
Recreation
Class 2
Cold Hater Aquatic
Life
Class 1
Han Hater Aquatic
Life
Class 1
Cold and Hari
Hater flquatic Lift
Class 2
Doiestic Hater Supp.
Agriculture
These are »aters that (1) currently are capable of sustaining a *ide variety of
co d water biota, including sensitive species, or (2) co u tl n sue? ot
but or correctable .ater quality conditions,' Haters shal
capable of sustaining such biota -here physical habitat, «ater
and Ntir quality conditions result in no substantial iipairant otte
abundance and diversity of species, w^™* OT in
These are .waters that (i) currently are capable of sustaining a «ide variety of
ar. «ter bio ,, including sensitive species, or (2) could usta sue ot
tat for correctable «ter quality condition,. Haters shall be considered
apable of sustaining such biota .here physical habitat, Mt.r flam or levels
and ,ater quality conditions result in no substantial iipair.ent of t!e
abundance and diversity of species.
thit '" not "W"* of "Staining a «„, variety of cold or
' inClUdin9 SMSitiVe spfcies' due to »"ni«l "ab tat, «ter
n " '-°r u"co:rKtaJ)le «ter ^'"ty conditions that result in
substantial tepairient of the abundance and diversity of sptcies.
These surface waters are suitable or intended to beco* suitable for potable
••tor supplies. After receiving treafent (defined as coagulat o fh ecu Ition
se station filtration, and disinfection .ith chlorine Ir S ^ «
d«n ll" T* ^ °r4d0 dr
aiendients, or suppleients thereto.
These .aters are suitable or intended
fo"
to becoie suitable for irrigation of
drinlting "ater
CO-3
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COLORADO
All
Classes
Priiary Contact Secondary Conta.. Cold Water Aqua,,
CI«s 1 - Class 2 Class 1
Physical
P»
Upper Value
Lexer Value
Dissolved Oxygen
Upper Value
Loner Value
Teiperature
Upper Value
Teiperature Change
Upper Value
Chlorides
Upper Value
Sulfates
Upper Value
Nutrients
Aionia
Upper Value
Nitrite
Upper Value
Toxic totals
.Arsenic
Upper
Cadiiut
Upper
Chroiiui -
Upper
Chroiiui -
Upper
Copper
Upper
Cyanide
Upper
Iron
Upper
Lead
Upper
Mercury
Upper
Zinc
Upper
Berylliui
Upper
Manganese
Upper
Nickel
Upper
Value
Value
Hexavalent
Value
Trivalent
Value
Value
Value
Value
Value
Value
Value
Value
Value
Value
9.0
6.5
Narr.
9.0
6.5
Narr.
250 «g/L
250 •g/l
0.05 ig/L
0.05 ig/L
.00005 ig/L
Nirr.
9.0
6.5
•g/L
7.0 ig/L
Narr.
3 C
0.02 ig/L as N
0.05 ng/L as N
0.05 ig/L
Narr.
0.025 ig/L
0.1 ig/L
Narr.
0.005 ig/L
1.0 ig/L
Narr.
Narr.
Narr.
1.0 «g/L
Narr.
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COLORADO
Seleniui
Upper Value
Silver
Upper Value
Pesticides
Aldrin t Dieldrin
Upper Value
DDT
Upper Value
DDD
Upper Value
DOE
Upper Value
Dueton
Upper Value
Endosufan
Upper Value
Endrin
Upper Value
Suthion
Upper Value
Heptachlor
Upper Value
Lindane
Upper Value
Hetoxychlor
Upper Value
Hirex
Upper Value
Parathion
Upper Value
Toxaphene
Upper Value
Organics
Chlorophenol
Upptr Valw
Honohydric Phml*
Upper Valw
PCBs
Upper Valui
Bacteria
Fecal Colifore
Upper Value
All
Classes
Priiary Contact Secondary Conta.. Cold Hater flqua.
uuss l Class 2 Class 1
0.05 ig/L
Narr.
0.003
0.001 ug/L
0.001 ug/L
0.001 ug/L
0.1 ug/L
0.003 ug/L
0.004 ug/L
0.01 ug/L
0.001 ug/L
0.01 ug/L
0.03 ug/L
0.001 ug/L
0.04 ug/L
0.005 ug/L
0.001 ig/L
0.5 tg/L
0.001 ug/L
Narr.
Narr.
CO-5
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- .
COLORADO
Hari Mater Aqua.. Cold and Hare Do«stic Hater
Class 1 Class 2
Physical
PH
Upper Value
Loner Value
Dissolved Oxygen
Upper Value
Loiter Value
Teiperature
Upper Value
Teiperature Change
Upper Value
Turbidity
Upper Value
Nutrients
Auonia
Upper Value
Nitrate
Upper Valut
Nitrite
Upper Value
Toxic Metals
Arsenic
Upper Value
Cadiiut
Upper Value
Chrotiut - Hexavalent
Upper Value
Secondary Upper Litit
Chrotiut - Trivalent
Upper Value
Secondary Upper Litit
Copper
.Upper Valut
Cyanide
Upper Valut
Iron
Upper Value
Lead*
Upper Value
Mercury
Upper Value
Zinc
Upper Value
Biriut
Upper -Value
Beryl liut
Upper Value
9.0 , *
7. v
6.5 C ft
J.U
7.0 ig/L
6.0 ig/L
Narr.
3 C
1.0
0.06 §f/L as N o.5
10
0.50 ig/L as N i.o
0.05 §g/L Narr. 0.05
Marr. Narr. o.OlO
0.05
Narr.
0.1
Narr.
Narr. Is0
0.005 ig/L Narr. 0.2
1.0 ig/L Narr. 0.3
Narr. Ot05
0.002
5.0
Narr. i.o
Narr. Narr.
TPU
•g/L as N
•9/L
•9/L as N
•9/L
•9/L
•g/L
•g/L
•g/L
•g/L
tg/L
•g/L
•g/L
•9/L
•9/L
•g/L
•g/L
i.
•
. Agriculture
Marr.
100 tg/L tjb
10 M/L
0.1 ig/L
0.010 «g/L
0.1 ig/L
•g/L
0.1 ig/L
•g/L
0.2 ig/L
0.2 ig/L
0.1 ig/L
2.0 ig/L )fl|
A.I mi. It
CO6
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COLORADO
Boron
Upper Value
Manganese
Upper Value
Nickel
Upper Vaiue
Seleniui
Upper Value
Silver
Upper Value
Pesticides
Aldrifl
Upper Value
Chlordane
Upper Value
DDT
«»r. .later Aqua.. Cold and «ar. Domtic later .. ftgriculture
Class 1
1.0 ig/L
Narr.
0.05 tq/L
Narr.
0.003 ug/L
Class 2
Narr.
Narr.
Narr.
Narr.
Narr.
0.05 «g/L
0.01 eg/L
0.05 ig/L
0.004 ug/L
Upper Value
DDO
Upper Value
mw
DDE
Upper Value
Deieton
Upper Value
Endosulfan
Upper Value
Endrin
Upper Value
Guthion
Upper Value
Heptachlor
Upper Value
Lindane
Upper Value
Bethoxychlor
Upper Vaiue
Hirex
Upper Value
Parathion
Upper Value
Toxaphene
Upper Value
Organics
Chlorophenol
Upper Value
Honohydric Phenol
Upper Value
PCBs
Upper Value
0.001 ug/L
0.001 ug/L
0.001 ug/L
0.1 ug/L
0.003 ug/L
0.004 ug/L
0.01 ug/L
0.001 ug/L
0.01 ug/L
0.03 ug/L
0.001 ug/L
0.04 ug/L
V "•
0.005 ug/L
0.001 ig/L
0.5 ig/L
0.001 ug/L
0.02 eg/L
0.004 eg/L
0.1 ig/L
0.005 ig/L
0.001 ig/L
0.001 §g/L
Narr.
0.75 ag/L
0.2 eg/L
0.2 ig/l
0.02 tg/L
Bacteria
CO-7
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COLORADO
Fecal Colifort
Upper Value
Han Hater Aqua.. Cold and Hart
Class 1 Class 2
Ooiestic Hater .. Agriculture
Marr.
CO-8
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