STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3 and 4
               
BASIN: Upper South Platte River	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l

Stream Segment Description							
1a.	Mainstem of the South Platte River from the source of the South and Middle Forks to a point immediately above the confluence with the North Fork of the South Platte River, including all mainstem reservoirs.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5 - 9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75 
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
1b.	All tributaries to the South Platte River, including lakes, reservoirs and wetlands within the Lost Creek and Mt. Evans Wilderness Areas.	
OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli.=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02 Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75 NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2a.	All tributaries to the South Platte River system, including all lakes, reservoirs and wetlands from the headwaters of the South and Middle Forks to a point immediately below the confluence with Tarryall Creek except for specific listings in Segment 1b, 2b and c.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2b.	Mainstem of Mosquito Creek from the confluence with South Mosquito Creek to its confluence with the Middle Fork of the South Platte River.	
UP	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ch)=220	Temporary modification:  Zn(ch)= 283g/l (dis), based on uncertainty.  Expiration date 2/28/07	
2c.	South Mosquito Creek from the source to confluence with Mosquito Creek and No Name Creek from the source to the confluence with South Mosquito Creek.	
UP	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS  	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ch)=280	Temporary modifications Cd(ch)=3.3 g/l (dis), Zn(ch)=400 g/l (dis) based on uncertainty.
Expiration date 2/28/07.	
3.	All tributaries to the South Platte River, including all lakes, reservoirs and wetlands from a point immediately below the confluence with Tarryall Creek to a point immediately above the confluence with the North Fork of the South Platte River, except for specific listings in Segment 1b.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
4.	Mainstem of the North Fork of the South Platte River, including all tributaries, lakes, reservoirs and wetlands from the source to the confluence with the South Platte River, except for specific listings in Segments 1b, 5a, 5b, and 5c.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.= 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli-200/100ml 
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modifications:  Hall Valley to confluence with Geneva Creek: Cu(ch)=26 µg/l (dis), Zn(ch)=26 µg/l (dis). Expiration date of 2/28/10.	
5a.	Mainstem of Geneva Creek from the source to the confluence with Scott Gomer Creek.	
	Aq Life Cold 1
Recreation 1a
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 3.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
NO2=0.05
	As(ch)=100(Trec)
Cd(ch)=2
CrIII(ch)=100
CrVI(ch)=25
Cu(ch)=18(dis)	Fe(ch)=1200
Pb(ch)=4
Mn(ch)=530(dis)
Hg(ch)=0.05
Ni(ch)=50	Se(ch)=4.6
Ag(ch)=1
Zn(ch)=190(dis)	All Metals Trec unless 
otherwise noted.	

	STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3 and 4
               
BASIN: Upper South Platte River	
Desig	
Classifications	
NUMERIC STANDARDS	TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
5b.	Mainstem of Geneva Creek from the confluence with Scott Gomer Creek to the confluence with the North Fork of the South Platte River; all tributaries of Geneva Creek including lakes, reservoirs and wetlands from source to confluence with the North Fork of the South Platte River.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011	CN=0.005
S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis) 
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modifications: Geneva Creek
Zn(ch)=82 g/l.
Expiration date of 2/28/10.	
5c.	Mainstem of Gooseberry Gulch and all tributaries from source to confluence with Elk Creek.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS 	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis) Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
6a.	Mainstem of the South Platte River from a point immediately above the confluence with the North Fork of the South Platte River to the inlet of Chatfield Reservoir.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
6b. 	Chatfield Reservoir.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS 	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Mean total phosphorous P=0.027 mg/L measured throughout the water column in Chatfield Reservoir only for months of July, August and September.	
6c. 	Mainstem of the South Platte River from the outlet of Chatfield Reservoir to Bowles Avenue.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS 	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS*	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac)=TVS
Mn(ch)=90g/l(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	*Cu (ac/ch) = TVS *2.7 below the confluence with Marcy Gulch to Bowles Avenue.	
7.	All tributaries to the South Platte River, including all lakes, and reservoirs and wetlands from a point immediately below the confluence with the North Fork of the South Platte River to the outlet of Chatfield Reservoir except for specific listings in Segments 8, 9, 10, 11, 12, and 13.	
UP	Aq Life Cold 2
Recreation 1a
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
	As(ch)=100(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
Cr III(ac)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
8.	Mainstems of East and West Plum Creek from the source to the boundary of National Forest lands, including all tributaries, lakes, reservoirs and wetlands within the Plum Creek drainage which are on National Forest Lands, except for the specific listing in Segments 9 and 10b.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
9.	Mainstem of Bear Creek, including all tributaries, lakes, and reservoirs, and wetlands from the source to the inlet of Perry Park Reservoir (Douglas County).	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
10a.	Mainstem of East and West Plum Creek and Plum Creek from the boundary of National Forest lands to Chatfield Reservoir, except for specific listings in Segment 10b.	
UP	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.= 5.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS*	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis) 	Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	*Cu (ac/ch) = TVS *2.4 on East Plum Creek and Plum Creek below the Plum Creek Wastewater Authority Discharge.	

	STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 2,3 & 4
               
BASIN: Upper South Platte River	
Desig	
Classifications	
NUMERIC STANDARDS		TEMPORARY
	MODIFICATIONS
	AND
	QUALIFIERS

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
10b.	Mainstem of West Plum Creek including all tributaries, lakes, reservoirs, and wetlands from its source to Perry Park Pond.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
 CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
11a.	All tributaries to the East Plum Creek system, including all lakes, reservoirs and wetlands which are not on national forest lands.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
11b.	All tributaries to the West Plum Creek system, including all lakes, reservoirs and wetlands, which are not on national forest lands, except for specific listings in Segments 9 and 12.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
12.	Mainstem of Garber Creek and Jackson Creek from the boundary of National Forest lands to the confluence with West Plum Creek.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02 
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
13.	Mainstem of Deer Creek, including the North and South Forks, from the source to Chatfield Reservoir.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
14.	Mainstem  of the South Platte River from Bowles Avenue in Littleton, Colorado, to the Burlington Ditch diversion in Denver, Colorado.	
	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS*2.8
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ch)=190(dis)
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
15.	Mainstem of the South Platte River from the Burlington Ditch diversion in Denver, Colorado, to a point immediately below the confluence with Big Dry Creek.	
UP	Aq Life Warm 2 
Recreation 1a
Water Supply
Agriculture	D.O.*
pH = 6.5-9.0**
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=1.0
NO3=10
Cl=250
S04=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS*2.3
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ch)=400(dis)
Mn(ac/ch)=TVS
Hg(ac)=2.4(dis)
Hg(ch)=0.4(dis)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	*See attached table for site-specific Dissolved Oxygen standards.
**pH=6.0-9.0 from 64th Ave. downstream 2 miles.  Temporary modifications:  F. Coli=existing quality; E.Coli=existing quality.  Expiration date of 2/28/10.	
16a.	Mainstem of Sand Creek from the confluence of Murphy and Coal Creek in Arapahoe County to the confluence with the South Platte River.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.1
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS*	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac)=TVS
Se(ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modifications: 
Se(ch)= 19.3 g/l
Se(ac)=no acute standard. Expiration date of 2/28/10.

*Cu (ac/ch) = TVS *2.6 below the Sand Creek Water Reuse Facility outfall.	

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 2,3 & 4
               
BASIN: Upper South Platte River	
Desig	
Classifications	
NUMERIC STANDARDS		TEMPORARY
	MODIFICATIONS
	AND
	QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

16b. Aurora Reservoir.	
	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100m
E. Coli=126l/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
16c.	All tributaries to the South Platte River, including all lakes, reservoirs and wetlands, from the outlet of Chatfield Reservoir, to a point immediately below the confluence with Big Dry Creek, except for specific listings in the subbasins of the South Platte River, and in Segments 16a, 16b, 16d, 16e, 16f, 16g, 17a, 17b, and 17c.	
	UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Fish Ingestion Organics
Temporary modifications:  East & West Toll Gate Creeks, Toll Gate Creek Se(ch)=18g/l(dis), Se(ac)=no acute standard.  Expiration date of 2/28/10.  	
16d. Second Creek from the source to the O’Brian Canal. 	UP 	Aq Life Warm 2 
Recreation 1a 
Agriculture 	D.O. (ch)=3.3 mg/l1
pH=6.5-9.0 
F.Coli=200/100ml 
E. Coli=126/100ml 	NH3(ac)=TVS 
NH3(ch)=0.06 
Cl2(ac)=0.019 
Cl2(ch)=0.011 
CN=0.005 	S=0.002 
B=0.75 
NO2=0.5 	As(ch)=100(Trec) 
Cd(ac/ch)=TVS 
CrIII(ac/ch)=TVS 
CrVI(ac/ch)=TVS 
Cu(ac/ch)=TVS 	Fe(ch)=1000(Trec) 
Pb(ac/ch)=TVS 
Mn(ac/ch)=TVS 
Hg(ch)=0.01(Tot) 
Ni(ac/ch)=TVS 	Se(ac/ch)=TVS 
Ag(ac/ch)=TVS 
Zn(ac/ch)=TVS 	1 15th percentile of D.O. measurements collected between 6:30 a.m. and 6:30 p.m. 	
16e. Third Creek from the source to the O’Brian Canal. 	UP 	Aq Life Warm 2 
Recreation 1a 
Agriculture 	D.O. (ch)=4.0 mg/l1
pH=6.5-9.0 
F.Coli=200/100ml 
E. Coli=126/100ml 	NH3(ac)=TVS 
NH3(ch)=0.06 
Cl2(ac)=0.019 
Cl2(ch)=0.011 
CN=0.005 	S=0.002 
B=0.75 
NO2=0.5 	As(ch)=100(Trec) 
Cd(ac/ch)=TVS 
CrIII(ac/ch)=TVS 
CrVI(ac/ch)=TVS 
Cu(ac/ch)=TVS 	Fe(ch)=1000(Trec) 
Pb(ac/ch)=TVS 
Mn(ac/ch)=TVS 
Hg(ch)=0.01(Tot) 
Ni(ac/ch)=TVS 	Se(ac/ch)=TVS 
Ag(ac/ch)=TVS 
Zn(ac/ch)=TVS 	1 15th percentile of D.O. measurements collected between 6:30 a.m. and 6:30 p.m. 	
16f. Barr Lake Tributary from the source to the Denver Hudson Canal. 	UP 	Aq Life Warm 2 
Recreation 1a 
Agriculture 	D.O. (ch)= 1
pH=6.5-9.0 
F.Coli=200/100ml 
E. Coli=126/100ml 	NH3(ac)=TVS 
NH3(ch)=0.06 
Cl2(ac)=0.019 
Cl2(ch)=0.011 
CN=0.005 	S=0.002 
B=0.75 
NO2=0.5 	As(ch)=100(Trec) 
Cd(ac/ch)=TVS 
CrIII(ac/ch)=TVS 
CrVI(ac/ch)=TVS 
Cu(ac/ch)=TVS 	Fe(ch)=1000(Trec) 
Pb(ac/ch)=TVS 
Mn(ac/ch)=TVS 
Hg(ch)=0.01(Tot) 
Ni(ac/ch)=TVS 	Se(ac/ch)=TVS 
Ag(ac/ch)=TVS 
Zn(ac/ch)=TVS 	1When water is present, D.O. concentrations shall be maintained at levels that protect classified uses. 	
16g. Marcy Gulch from, including all lakes, reservoirs, and wetlands from the source to the confluence with the South Platte.	UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E. Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS*	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	*Cu (ac/ch) = TVS *2.4 below the Centennial Wastewater Treatment Facility outfall 	
17a. 	Washington Park Lakes, City Park Lake, Rocky Mountain Lake, Berkely Lake.	
	UP	Aq Life Warm 1
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	  	
17b.	Sloan’s Lake.	
	Aq Life Warm 1
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS
		
17c.	Bowles Lake, a.k.a. Patrick Reservoir or Bow Mar Lake.	
	Aq Life Warm 1
Recreation 1a
Agriculture	D.O.=5.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	Al(ac/ch)=TVS
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	

UPPER SOUTH PLATTE RIVER SEGMENT 15
Site-Specific Minimum Dissolved Oxygen Standards

UNDERLYING STANDARDS
	
Early Life Stage Protection Period (April 1 through July 31)
1-Day1,5,6			3.0 mg/L (acute)

7-Day Average 1.2.,4		5.0 mg/L

Older Life Stage Protection Period (August 1 through March 31)
1-Day 1,5			2.0 mg/L (acute)

7-Day Mean of Minimums1,3	2.5 mg/L

30-Day Average 1.2.		4.5 mg/L

TEMPORARY MODIFICATION

During the period until October 31, 2001, the Segment 15 dissolved oxygen standards from 88th Avenue north to the end of the Segment shall be the currently existing ambient conditions as monitored in 1992, 1993, and 1994 by the Division and by the Metro District.  Beginning November 1, 2001, the standards shall apply to all sections of Segment 15 south of the Brighton Ditch diversion.  The standards north of the Brighton Ditch diversion shall continue to be the ambient conditions existing in 1992, 1993, and 1994.  Beginning November 1, 2004, the standards shall apply to all sections of Segment 15.

Footnotes

1.	For the purposes of determining compliance with the standards, dissolved oxygen measurements shall only be taken in the flowing portion of the stream at mid-depth, and at least six inches above the bottom of the channel.  All sampling protocols and test procedures shall be in accordance with procedures and protocols approved by the Division.

	2.	A minimum of four independent daily means must be used to calculate the average for the 7-Day Average standard.  A minimum of eight independent daily means must be used to calculate the average for the 30-Day Average standard.  The four days and the eight days must be representative of the 7-Day and the 30-Day periods respectively.  The daily means shall be the mean of the daily high and low values.  In calculating the mean values, the dissolved oxygen saturation value shall be used in place of any dissolved oxygen measurements which exceed saturation.

	3.	The 7-Day Mean minimum is the average of the daily minimums measured at the location on each day during any 7-Day period.

4	North of the Lupton Bottoms Ditch diversion, the ELS 7-Day average standards for the period July 1 – June 31 shall be 4.6 mg/L.

5.	During a 24 hour day dissolved oxygen levels are likely to be lower during the nighttime when there is no photosynthesis.  The dissolved oxygen levels should not drop below the acute standard (ELS acute standard of 3.0 mg/L or the  OLS standards of 2.0 mg/L).  However, if during the ELS period multiple measurements are below 3.0 mg/L during the same nighttime period, the multiple measurements shall be considered a single exceedance of the acute standard.  For measurements below 2.0 mg/L during either the ELS or the OLS periods, each hourly measurement below 2.0 mg/L shall be considered an exceedance of the acute standards.

6.	In July, the dissolved oxygen level in Segment 15 may be lower than the 3.0 mg/L acute standard for up to 14 exceedances in any one year and up to a total of 21 exceedances in three years before there is a determination that the acute dissolved oxygen standards is not being met.  Exceedances shall be counted as described in Footnote 5.

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3 and 4
               
BASIN: Cherry Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	Mainstem of Cherry Creek from the source of East and West Cherry Creek to the inlet of Cherry Creek Reservoir.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
2.	Cherry Creek Reservoir.	
	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
Season mean chlorophyll a = 15 g/l measured in the upper three meters of the water column for the months of July through September	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
3.	Mainstem of Cherry Creek from the outlet of Cherry Creek Reservoir to the confluence with the South Platte River.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
4.	All tributaries to Cherry Creek, including all lakes, reservoirs and wetlands, from the source of East and West Cherry Creeks to the confluence with the South Platte River, except for specific listings in Segment 2.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3

BASIN: Bear Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1a.	Mainstem of Bear Creek from the source to Harriman Ditch, including all mainstem reservoirs.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
1b.	Mainstem of Bear Creek from Harriman Ditch to the inlet of Bear Creek Reservoir.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics	
1c.	Bear Creek Reservoir, and Soda Lakes.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	*See narrative phosphorus standard below.	
2.	Mainstem of Bear Creek from the outlet of Bear Creek Reservoir to the confluence with the South Platte River.	
UP	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml

	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	
	
3.	All tributaries to Bear Creek, including all lakes, reservoirs and wetlands, from the source to a point immediately below the confluence with Cub Creek.  Except for specific listings in Segment 7.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
4a.	All tributaries to Bear Creek, including all lakes, reservoirs and wetlands, from a point immediately below the confluence with Cub Creek to the confluence with the South Platte River, except for specific listing in Segments 4b, 4c, 5 and 6.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Water + Fish Organics	
4b.	Swede Gulch, including all ponds, lakes, reservoirs and wetlands, from its headwaters to its confluence with Kerr Gulch.	
	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics	

*Narrative Phosphorus Standard for Segment 1c of Bear Creek.  Concentrations of total phosphorus in Bear Creek Reservoir shall be limited to the extent necessary to prevent stimulation of algal growth to protect beneficial uses.  Sufficient dissolved oxygen shall be present in the upper half of the reservoir hypolimnion layer to provide for the survival and growth of cold water aquatic life species.  Attainment of this standard shall, at a minimum, require shifting the reservoir trophic state from a eutrophic and hypertrophic condition to a eutrophic and mesotrophic condition.

 STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3

BASIN: Bear Creek	
Desig	
Classifications	
NUMERIC STANDARDS
	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
4c.	Swede Gulch, including all ponds, lakes, reservoirs and wetlands, from its confluence with Kerr Gulch to its confluence with Bear Creek.		Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics	
5.	Sawmill, Troublesome, and Cold Springs Gulches, and mainstem of Turkey Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the confluence with Bear Creek, except for specific listing in Segment 6.	
	UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics	
6.	Mainstem of North Turkey Creek, from the source to the confluence with Turkey Creek.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
7.	All tributaries to Bear Creek, including lakes, reservoirs and wetlands, within the Mt. Evans Wilderness Area.	
OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3
               
BASIN: Clear Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	
			
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		
Stream Segment Description							
1.	Mainstem of Clear Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the I-70 bridge above Silver Plume.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2.	Mainstem of Clear Creek, including all tributaries, lakes, reservoirs and wetlands, from the I-70 bridge above Silver Plume to the Argo Tunnel discharge, except for specific listings in Segments 3 through 10.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli-=200/100ml 
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005
	S=0.002
B=0.75
NO2=0.05 SO4=WS
NO3=10
Cl=250
	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS
Se(ac/ch)=TVS	Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac)=TVS
Zn(ch)=200	Temporary modifications:
Cu(ch)=8.1 g/l (dis), 
Mn(ch)=106 g/l (dis),
Zn(ch)=257 g/l (dis), based on uncertainty.  Expiration date of 2/28/10.	
3a.	Mainstem of South Clear Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the confluence with Clear Creek, except for the specific listing in 3b and 19.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml 
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)	Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modification: Zn(ch)=100 g/l (dis).
Expiration date of 2/28/10.	
3b.	Mainstem of Leavenworth Creek from source to confluence with South Clear Creek.		Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml 
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modifications:
Pb(ch)=l.7 g/l (dis);
Zn(ch)=220 g/l (dis).
Expiration date of 2/28/10.	
4.	Mainstem of West Clear Creek from the source to the confluence with Woods Creek.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
5.	Mainstem of West Clear Creek from the confluence with Woods Creek to the confluence with Clear Creek.	
	UP	Aq Life Cold 1
Recreation 1a
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
	As(ch)=100(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)

	
							Zn(ac)=e0.8404[ln(hardness)]+1.8810
Zn(ch)=e08404[ln(hardness)]+1.5127
		
6.	All tributaries to West Clear Creek, including all lakes, reservoirs and wetlands, from the source to the confluence with Clear Creek, except for specific listings in Segments 7 and 8.	
		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modification:
Zn(ch)=38 g/l (dis).
Expiration date of 2/28/10.	
7.	Mainstem of Woods Creek from the outlet of Upper Urad Reservoir to the confluence with West Clear Creek.	
UP	Aq Life Cold 2
Recreation 2	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.0-9.0
F.Coli=2000/100ml
E.Coli=630/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
NO2=0.05	WQSWC = ((QWC  + QWFCC) X WQSWFCC - (QWFCC X CWFCC))/QWC
	WQSWC = Water Quality Standards for Woods Creek
	QWC = Flow for Woods Creek
	QWFCC = Flow for West Fork Clear Creek
	WQSWFCC = Water Quality Standards for West Fork Clear Creek
CWFCC = Ambient Concentration in West Fork Clear Creek	Standards shall be applied using the Segment 7 equation.	
8.	Mainstem of Lion Creek from the source to the confluence with West Clear Creek.	
UP	Aq Life Cold 2
Recreation 1a	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 3.0-9.0
F.Coli=200/100ml E.Coli=126/100ml					
*REFER TO STATEMENT OF BASIS AND PURPOSE

. STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3 
               
BASIN: Clear Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
9a.	Mainstem to the Fall River, including all tributaries, lakes., reservoirs and wetlands, from the source to the confluence with Clear Creek.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modification:
Cu(ch)=11 g/l (dis), based on uncertainty.  Expiration date of 2/28/10.	
9b. 	Mainstem of Trail Creek, including all tributaries, lakes, reservoirs, and wetlands from the source to the confluence with Clear Creek.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli-=200/100ml 
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005
	S=0.002
B=0.75
NO2=0.05 SO4=WS
NO3=10
Cl=250
	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS
Se(ac/ch)=TVS	Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac)=TVS
Zn(ch)=200	Temporary modifications: Cd(ch)=4.6 g/l, Cu(ch)=148 ug/l, Pb(ch)=7.6 g/l l, Mn(ch)=548, Zn(ch)=1068 g/l., based on uncertainty.  
Expiration date of 2/28/10.	
10.	Mainstem of Chicago Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the confluence with Clear Creek, except for specific listings in Segment 19.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
11.	Mainstem of Clear Creek from the Argo Tunnel discharge to the Farmers Highline Canal diversion in Golden, Colorado.	
UP	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ch)=17
	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ch)=300	Temporary modification:
Zn(ch)=339 g/l (dis),
Mn(ch)=861 g/l (dis), based on uncertainty.  
Expiration date of 2/28/10.	
12.	All tributaries to Clear Creek, including all lakes. reservoirs and wetlands, from the Argo Tunnel discharge to the Farmers Highline Canal diversion in Golden, Colorado, except for specific listings in Segments 13a and 13b.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS 	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
13a.	Mainstem of North Clear Creek and Four Mile Gulch including all tributaries, lakes, reservoirs and wetlands from their sources to the lowest water supply intake located in each stream and Chase Gulch including all tributaries, lakes, reservoirs and wetlands from its source to the confluence with North Clear Creek.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05 NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS	Cu(ac/ch)=TVS Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS 
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
13b..	Mainstem of North Clear Creek including all tributaries, lakes, reservoirs and wetlands from the source to the confluence with Clear Creek, except for the specific listings in segment 13a.	
UP	Aq Life Cold 2
Recreation 1a
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
	As(ac)=100(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
	Cu(ch)=64
Fe(ch)=5400(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ch)=740	Temporary modifications: 
Cd(ch)=6.0 g/l (dis),
Mn(ch)=5,293 g/l (dis),
Zn(ch)=1,864 g/l (dis), based on uncertainty.  Expiration date of 2/28/10.	
14a.	Mainstem of Clear Creek from the Farmers Highline Canal diversion in Golden, Colorado to the Denver Water conduit #16 crossing.	
UP	Aq Life Warm 2
Recreation 2
Water Supply
Agriculture	D.O.= 5.0 mg/l
pH = 6.5-9.0
F.Coli=2000/100ml 
E.Coli=630/00ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVSX3.66*	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ch)=500 Hg(ch)=0.01(tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVSX1.57*		
14b.	Mainstem of Clear Creek from the Denver Water conduit #16 crossing to Youngfield Street in Wheat Ridge, Colorado.	UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.= 5.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVSX3.66*	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ch)=500 Hg(ch)=0.01(tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVSX1.57*		

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 3 
               
BASIN: Clear Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
15.	Mainstem of Clear Creek from Youngfield Street in Wheat Ridge, Colorado, to the confluence with the South Platte River.	
UP	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVSx3.66*	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Trec)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVSx1.57*	Aquatic life warm 1 goal qualifier.  

Temporary modification:
E.Coli=261/100 ml.
Expiration date of 2/28/10.	
16a.	Mainstem of Lena Gulch including all tributaries, lakes, reservoirs and wetlands from its source to the outlet of Maple Grove Reservoir.	
	UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS
		
16b.All tributaries to Clear Creek from the Farmers Highline Canal diversion in Golden, Colorado to the confluence with the South Platte River, except for specific listings in Segments 16a, 17a, 17b, 18a and 18b.	
UP	Aq Life Warm 2
Recreation 2
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml 
E.Coli=630/100ml 	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
17a.	Arvada Reservoir.	
	UP	Aq Life Cold 2
Recreation 2
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS
	Water + Fish Organics	
17b.	Mainstem of Ralston Creek from the source to the inlet of Arvada Reservoir, including Ralston Reservoir, and Upper Long Lake.	
	UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli-200/100ml 
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
	Fe(ch)=WS(dis) Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS
	Water + Fish Organics	
18a.	Mainstem of Ralston Creek, including all lakes and reservoirs, from the outlet of Arvada Reservoir to the confluence with Clear Creek.	
	UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O. = 5.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis) Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
18b.	Mainstem of Leyden Creek and Van Bibber Creek from their source to their confluence with Ralston Creek.  Mainstem of Little Dry Creek from its source to its confluence with Clear Creek.	
	UP	Aq Life Warm 2
Recreation 2
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml E.Coli=630/100ml 	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis) Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
19.	All tributaries to Clear Creek, including lakes, reservoirs and wetlands, within the Mt. Evans Wilderness Area.	
	OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250 
SO4=250	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		

      * TVS x (times) the FWER (final water effect ratio) = site-specific standard.
REGION: 3
               
BASIN: Big Dry Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
	TEMPORARY
	MODIFICATIONS
	AND
	QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	`
METALS

ug/l		

Stream Segment Description							
1.	Mainstem of Big Dry Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the confluence with the South Platte River, except for specific listing in Segment 2, 3, 4a, 4b, 5 and 6.	
UP
	Aq Life Warm 2
Recreation 1b
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=325/100ml E.Coli=205/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=4.5	As(ac)=100(Trec)
Be(ch)=100
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS	Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modifications:
F.Coli=380/100ml
E.Coli=401/100ml
Se(ch)=11g/l (dis).
Expiration date of 2/28/10.	
2.	Standley Lake.	
	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS
Be(ch)=4	See attached Table 2 for additional standards for segment 2.  See * for narrative standard.	
3.	Great Western Reservoir.	
UP	Aq Life Warm 2
Recreation 2
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml 
E.Coli=630/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=2.7	As(ac)=100(Trec)
Be(ch)=100
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
	Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	See attached Table 2 for additional standards for segment 3.  	
4a.	Mainstem and all tributaries to Woman and Walnut Creeks from sources to Standley Lake and Great Western Reservoir except for specific listings in Segments 4b and 5.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml

	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10	As(ac)=50(Trec)
Be(ch)=4
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ac)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	See attached Table 2 for additional standards for segment 4a. 	
4b.	North and South Walnut Creek and Walnut Creek, from the outlet of ponds A-4 and B-5 to Indiana Street.	
UP	Aq Life Warm 2
Recreation 2
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml
E.Coli=630/100ml
	Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005
S=0.002
B=0.75	NO2=0.5
NO3=10
	As(ac)=50(Trec)
Be(ch)=4
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ac)=0.01(Tot)
	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	See attached Table 2 for additional standards for segment 4b. 	
5.	Mainstems of North and South Walnut Creek, including all tributaries, lakes, reservoirs and wetlands, from their sources to the outlets of ponds A-4 and B-5, on Walnut Creek, and Pond C-2 on Woman Creek.  All three ponds are located on Rocky Flats property.	
UP	Aq Life Warm 2
Recreation 2
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml
E.Coli=630/100ml
	Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10

	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS
Be(ch)=4	See attached Tables 2 and 3 for additional standards and temporary modifications for seg 5.  Goal qualifier for all use classifications, expires 12/31/09. 	
6.	Upper Big Dry Creek and South Upper Big Dry Creek, from their source to Standley Lake.	
UP	Aq Life Warm 2
Recreation 2
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml
E.Coli=630/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS
	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
*Narrative standard for Segment 2, Big Dry Creek, Standley Lake.  The trophic status of Standley Lake shall be maintained as mesotrophic as measured by a combination of common indicator parameters such as total phosphorus, chlorophyll a, secchi depth, and dissolved oxygen.  Implementation of this narrative standard shall only be by Best Management Practices and controls implemented on a voluntary basis.

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 2 and 3
               
BASIN: Boulder Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	All tributaries to Boulder Creek, including all lakes, reservoirs and wetlands, within the Indian Peaks Wilderness Area.	
OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2.	Mainstem of Boulder Creek, including all tributaries, lakes, reservoirs and wetlands, from the boundary of the Indian Peaks Wilderness Area to a point immediately above the confluence with South Boulder Creek, except for the specific listings in Segment 3 and 12.  	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml 
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modification:
E.coli=150/100ml in lower portion below Broadway Street in Boulder.  Expiration date of 2/28/10.	
3.	Mainstem of Middle Boulder Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the outlet of Barker Reservoir, except for specific listing on Segment 1.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS
	Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
4a.	Mainstem of South Boulder Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the outlet of Gross Reservoir.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
4b.	Mainstem of South Boulder Creek, including all tributaries, lakes, reservoirs and wetlands, from the outlet of Gross Reservoir to South Boulder Road, except for specific listings in Segments 4c and 4d.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml E.Coli=126/100ml
	
NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
4c.	Mainstem of Cowdrey Drainage from the source below Cowdrey Reservoir #2 to the Davidson Ditch.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS 		
4d.	Mainstem of Cowdrey Drainage from immediately downstream of the Davidson Ditch to the confluence with South Boulder Creek.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
5.	Mainstem of South Boulder Creek from South Boulder Road to the confluence with Boulder Creek.	
UP	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
6.	Mainstem of Coal Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to highway 93.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS
	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		

REGION: 2 and 3
               
BASIN: Boulder Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
7a.	Mainstem of Coal Creek from highway 93 to highway 36 (Boulder Turnpike).	
UP	Aq Life Warm 1
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
7b.	Mainstem of Coal Creek from Highway 36 to the confluence with Boulder Creek.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modification:
E-Coli=525/100ml.
Expiration date of 2/28/10.	
8.	All tributaries to South Boulder Creek, including all lakes, reservoirs and wetlands from South Boulder Road to the confluence with Boulder Creek and all tributaries to Coal Creek, including all lakes, reservoirs and wetlands from Highway 93 to the confluence with Boulder Creek.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture
	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=250	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
9.	Mainstem of Boulder Creek from a point immediately above the confluence with South Boulder Creek to the confluence with Coal Creek.		Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)
	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
10.	Mainstem of Boulder Creek from the confluence with Coal Creek to the confluence with St. Vrain Creek.	
UP	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
	Ni(ac/ch)=TVS 
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modification:
E-Coli=214/100ml.
Expiration date of 2/28/10.	
11.	All tributaries to Boulder Creek, including all lakes, reservoirs, and wetlands from a point immediately above the confluence with South Boulder Creek to the confluence with St. Vrain Creek, except for specific listings in Segments 5 7a and 7b.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS 	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
12.	Deleted.  										

REGION: 2 and 3
               
BASIN: St. Vrain Creek	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	All tributaries to St. Vrain Creek, including all lakes, reservoirs and wetlands, which are within the Indian Peaks Wilderness Area and Rocky Mountain National Park.	
OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2.	Mainstem of St. Vrain Creek, including all tributaries, lakes, reservoirs and wetlands, from the boundary of the Indian Peaks Wilderness Area and Rocky Mountain National Park to Hygiene Road.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
3.	Mainstem of St. Vrain Creek from Hygiene Road to the confluence with the South Platte River and Barbour Ponds.	

UP	Aq Life Warm 1
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
4a.	Mainstem of Left Hand Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to highway 36 except for specific listings in Segment 4b.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
4b.	Mainstem of James Creek, including all tributaries, lakes, reservoirs and wetlands, from the source to the confluence with Left Hand Creek.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modifications:
Cu(ch)=27.2g/l (dis)
Pb(ch)=2.2g/l (dis).
Expiration date of 2/28/10.	
5.	Mainstem of Left Hand Creek, including all tributaries, lakes, reservoirs and wetlands from highway 36 to the confluence with St. Vrain Creek.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrIII(ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
6.	All tributaries to St. Vrain Creek, including lakes, reservoirs and wetlands from Hygiene Road to the confluence with the South Platte River, except for specific listings in the Boulder Creek subbasin and in segments 4a, 4b and 5.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modification:
Se(ch)=6.6g/l (dis).
Expiration date of 2/28/10.	
7.	Boulder Reservoir, Coot Lake, and Left Hand Valley Reservoir.		Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		

REGION: 2
               
BASIN: Middle South Platte River	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

Ug/l		

Stream Segment Description							
1a.	Mainstem of the South Platte River from a point immediately below the confluence with Big Dry Creek to the confluence with St. Vrain Creek.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.*
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrIII(ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS*2.2	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	*See attached table for site-specific Dissolved Oxygen standards.

Fish Ingestion Organics	
1b. 	Mainstem of the South Platte River from a point immediately below the confluence with St. Vrain Creek to the Weld/Morgan County Line.	UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrIII(ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Fish Ingestion Organics

Temporary modification:
NH3(ch)=0.12 mg/l below confluence with Cache La Poudre River.
Expiration date of 2/28/10.	
2.	Deleted.
										
3a.	All tributaries to the South Platte River, including all lakes, reservoirs and wetlands, from a point immediately below the confluence with Big Dry Creek to the Weld/Morgan County line, except for specific listings in the subbasins of the South Platte River, and in Segments 3b, 4, 5a, 5b, 5c, and 6. 	UP 	Aq Life Warm 2 
Recreation 1a 
Agriculture 	D.O.=5.0 mg/l 
pH=6.5-9.0 
F.Coli=200/100ml 
E.Coli=126/100ml 	NH3(ac)=TVS 
NH3(ch)=0.10 
Cl2(ac)=0.019 
Cl2(ch)=0.011 
CN=0.005 	S=0.002 
B=0.75 
NO2=0.5 	As(ch)=100(Trec) 
Cd(ac/ch)=TVS 
CrIII(ac/ch)=TVS 
CrVI(ac/ch)=TVS 
Cu(ac/ch)=TVS 	Fe(ch)=1000(Trec) 
Pb(ac/ch)=TVS 
Mn(ac/ch)=TVS 
Hg(ch)=0.01(Tot) 
Ni(ac/ch)=TVS 	Se(ac/ch)=TVS 
Ag(ac/ch)=TVS 
Zn(ac/ch)=TVS 	Fish Ingestion Organics 	
3b. 	Hayesmount Tributaries including the Upper Hayesmount Tributary from the source to the confluence with Box Elder Creek and the Lower Hayesmount Tributaries from the source to the Denver Hudson Canal. 	UP 	Aq Life Warm 2 
Recreation 1a 
Agriculture 	D.O. (ch)=1
pH=6.5-9.0 
F.Coli=200/100ml 
E.Coli=126/100ml 	NH3(ac)=TVS 
NH3(ch)=0.10 
Cl2(ac)=0.019 
Cl2(ch)=0.011 
CN=0.005 	S=0.002 
B=0.75 
NO2=0.5 	As(ch)=100(Trec) 
Cd(ac/ch)=TVS 
CrIII(ac/ch)=TVS 
CrVI(ac/ch)=TVS 
Cu(ac/ch)=TVS 	Fe(ch)=1000(Trec) 
Pb(ac/ch)=TVS 
Mn(ac/ch)=TVS 
Hg(ch)=0.01(Tot) 
Ni(ac/ch)=TVS 	Se(ac/ch)=TVS 
Ag(ac/ch)=TVS 
Zn(ac/ch)=TVS 	1When water is present, D.O. concentrations shall be maintained at levels that protect classified uses. 	
4.	Barr Lake and Milton Reservoir.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrIII(ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Fish Ingestion Organics	
5a. 	Mainstems of Lone Tree Creek, Crow Creek and Box Elder Creek from their sources to their confluences with the South Platte River, except for specific listings in Segment 5b..	UP	Aq Life Warm 2
Recreation 2
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml
E.Coli=630/100ml
	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modification: Lone Tree Creek
NH3(ch)=0.26 mg/l.
Expiration date of 2/28/10.	
5b.	Mainstem of Boxelder Creek from the confluence with Coyote Run to the Denver Hudson Canal. 	UP 	Aq Life Warm 2 
Recreation 2 
Agriculture 	D.O. (ch)=4.7 mg/l1
pH=6.5-9.0 
F.Coli=2000/100ml 
E.Coli=630/100ml 	NH3(ac)=TVS 
NH3(ch)=0.10 
Cl2(ac)=0.019 
Cl2(ch)=0.011 
CN=0.005 	S=0.002 
B=0.75 
NO2=10
NO3=100	As(ch)=100(Trec) 
Cd(ac/ch)=TVS 
CrIII(ac/ch)=TVS 
CrVI(ac/ch)=TVS 
Cu(ac/ch)=TVS 	Fe(ch)=1000(Trec) 
Pb(ac/ch)=TVS 
Mn(ac/ch)=TVS 
Hg(ch)=0.01(Tot) 
Ni(ac/ch)=TVS 	Se(ac/ch)=TVS 
Ag(ac/ch)=TVS 
Zn(ac/ch)=TVS 	115th percentile of D.O. measurements collected between 6:30 a.m. and 6:30 p.m.	

REGION: 2
               
BASIN: Middle South Platte River	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

Ug/l		

Stream Segment Description							
6. 	Lost Creek from Interstate 76 south, including all its tributaries, stock ponds and wetlands.	UP	Aq Life Warm 2 
Recreation 2 
Agriculture 	D.O.=5.0 mg/l 
pH=6.5-9.0 
F.Coli=2000/100ml
E. Coli=630/100ml	NO3=100 
N02=10 
CN=0.2 	S=0.002 
B=0.75 
	As=100(Trec) 
Be(ch)=100(Trec)
Cd=10(Trec) 
CrIII=100(Trec) 
CrVI=100(Trec) 
Cu=200(Trec) 	Pb=100(Trec) 
Mn=200(Trec) 
Ni=200(Trec) 
Se=20(Trec) 	Zn=2000(Trec) 		

Site-Specific Minimum Dissolved Oxygen Standards for Middle South Platte segment 1a
 
STANDARDS 
Early Life Stage Protection Period (April 1 through July 31) 
1-Day 1.4,5 3.0 mg/L (acute) 
7-Day Average 1.2 5.0 mg/L 
Older Life Stage Protection Period (August 1 through March 31) 
1-Day 1.4 2.0 mg/L (acute) 
7-Day Mean of Minimums 1.3. 2.5 mg/L 
30-Day Average 1.2. 4.5 mg/L 

Footnotes 

1.	For the purpose of determining compliance with the standards, dissolved oxygen measurements shall only be taken in the flowing portion of the stream at mid-depth, and at least six inches above the bottom of the channel. All sampling protocols and test procedures shall be in accordance with procedures and protocols approved by the Division. 

2. 	A minimum of four independent daily means must be used to calculate the average for the 7-Day Average standard. A minimum of eight independent daily means must be used to calculate the average for the 30-Day Average standard. The four days and the eight days must be representative of the 7-Day and the 30-Day periods respectively. The daily mean shall be the mean of the daily high and low values. In calculating the mean values, the dissolved oxygen saturation value shall be used in place of any dissolved oxygen measurements which exceed saturation. 

3. 	The 7-Day Mean Minimum is the average of the daily minimums measured at a location on each day during any 7-Day period. 

	4. 	During a 24 hour day, dissolved oxygen levels are likely to be lower during the nighttime when there is no photosynthesis. The dissolved oxygen levels should not drop below the acute standard (ELS acute standard of 3.0 mg/L or the OLS standard of 2.0 mg/L). However, if during the ELS period multiple measurements are below 3.0 mg/L during the same nighttime period, the multiple measurements shall be considered a single exceedance of the acute standard. For measurements below 2.0 mg/L during either the ELS or the OLS periods, each hourly measurement below 2.0 mg/L shall be considered an exceedance of the acute standard. 

	5. 	In July, the dissolved oxygen level in Segment 1a may be lower than the 3.0 mg/L acute standard for up to 14 exceedances in any one year and up to a total of 21 exceedances in three years before there is a determination that the acute dissolved oxygen standards is not being met. Exceedances shall be counted as described in Footnote 4. 

  STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 2 
               
BASIN: Big Thompson River	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	All tributaries to the Big Thompson River system, including all lakes, reservoirs and wetlands, which are within Rocky Mountain National Park, except for specific listings in Segment 2.	
OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2.	Mainstem of the Big Thompson River, including all tributaries, lakes, reservoirs, and wetlands from the boundary of Rocky Mountain National Park to the Home Supply Canal diversion, except for the specific listing in Segment 7; mainstem of Black Canyon Creek and Glacier Creek below Estes Park water treatment plant.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml 
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Temporary modifications: 
D.O., E. coli, NH3, NO3, B, Cd, Cu, Pb, Hg, Ni, Se, Ag, Zn = existing quality.  Wapiti Meadow wetlands at the toe of Lake Estes Dam
Expiration date of 12/31/2009	
3.	Mainstem of the Big Thompson River from the Home Supply Canal diversion to the Big Barnes Ditch diversion.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics	
4a.	Mainstem of the Big Thompson  from the Big Barnes Ditch diversion to the Greeley-Loveland Canal diversion.	
UP	Aq Life Cold 2
Water Supply
Agriculture

5/1 – 10/15
Recreation 1a

10/16 – 4/30
Recreation 2	D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0

5/1 - 10/15
F.Coli=200/100ml
E.Coli=126/100ml

10/16 – 4/ 30
F.Coli=2000/100ml
E.Coli=630/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics
	
4b.	Mainstem of the Big Thompson  from the Greeley-Loveland Canal diversion to County Road 11H.	
UP	Aq Life Warm 2
Agriculture

5/1 – 10/15
Recreation 1a

10/16 – 4/30
Recreation 2	D.O. = 5.0 mg/l
pH = 6.5-9.0

5/1 – 10/15
F.Coli=200/100ml
E.Coli=126/100ml

10/16 – 4/30
F.Coli=2000/100ml
E.Coli=630/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)-TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Fish Ingestion Organics
Temporary modification:
Se(ch)=5.5g/l (dis).
Expiration date of 2/28/10.	
4c.	Mainstem of the Big Thompson from County Road 11H to I-25.	
UP	Aq Life Warm 2
Agriculture

5/1 – 10/15
Recreation 1a

10/16 – 4/30
Recreation 2	D.O. = 5.0 mg/l
pH = 6.5-9.0

5/1 – 10/15
F.Coli=200/100ml
E.Coli=126/100ml

10/16 – 4/30
F.Coli=2000/100ml
E.Coli=630/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch )=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)-TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Fish Ingestion Organics  	
5.	Mainstem of The Big Thompson River from I-25 to the confluence with the South Platte River.	
UP	Aq Life Warm 2
Agriculture

5/1 – 10/15
Recreation 1b

10/16 – 4/30
Recreation 2	D.O. = 5.0 mg/l
pH = 6.5-9.0

5/1 – 10/15
F.Coli=325/100ml
E.Coli=205/100ml

10/16 – 4/30
F.Coli=2000/100ml
E.Coli=630/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modifications:
Se(ch)=8. 
Expiration date of 2/28/10. 	
6.	All tributaries to the Big Thompson River, including all lakes, reservoirs and wetlands, from the Home Supply Canal diversion to the confluence with the South Platte River, except for specific listings in Segments 12.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O. = 5.0 mg/l
pH = 6.5-9.0
F.Coli-200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)-TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Fish Ingestion Organics	
STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 2 
               
BASIN: Big Thompson River 	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
7.	Mainstem of the North Fork of the Big Thompson River from the boundary of Rocky Mountain National Park to the confluence with the Big Thompson River; mainstem of Buckhorn Creek from the source to the confluence with the Big Thompson River.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)-TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
8.	Mainstem of the Little Thompson River, including all tributaries, lakes, reservoirs and wetlands, from the source to the Culver Ditch diversion.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)-TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
9.	Mainstem of the Little Thompson River from the Culver Ditch diversion to the confluence with the Big Thompson River.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modifications:
E.Coli=504/100ml
Se(ch)=12g/l (dis).
Expiration date of 2/28/10.	
10.	All tributaries to the Little Thompson River, including all lakes, reservoirs and wetlands, from the Culver ditch diversion to the Big Thompson River, except for specific listings in Segments 11 and 13.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100mg
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modification:
Se(ch)=7g/l (dis).
Expiration date of 2/28/10.	
11.	Carter Lake.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
12.	Lake Loveland, Horseshoe Lake, Boyd Lake.	
	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O. = 5.0 mg/l
pH = 6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
13.	Berthoud Reservoir, Johnstown Reservoir.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture 	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS 	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
14.	Welch Reservoir, Lonetree Reservoir, Boedecker Lake, Lon Hagler Reservoir.		Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

                            
REGION: 2
               
BASIN: Cache La Poudre River	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	Mainstem of the Cache La Poudre River, and all tributaries, including lakes, reservoirs and wetlands, within Rocky Mountain National Park and the Rawah, Neota, Comanche Peak, and Cache La Poudre Wilderness Areas.	
OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(c)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS 	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2.	Mainstem of the Cache La Poudre River and all tributaries, including lakes, reservoirs and wetlands from the boundaries of Rocky Mountain National Park, and the Rawah, Neota, Comanche Peak, and Cache La Poudre Wilderness Areas to the Monroe Gravity Canal/North Poudre Supply canal diversion.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml 
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
3.	Deleted.										
4.	Deleted.										
5.	Deleted.										
6.	Mainstem of the North Fork of the Cache La Poudre River, including all tributaries, lakes, reservoirs and wetlands, from the source to the inlet of Halligan Reservoir.		Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml 
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
7.	Mainstem of the North Fork of the Cache La Poudre River from the inlet of Halligan Reservoir to the confluence with the Cache La Poudre River.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics	
8.	All tributaries to the North Fork of the Cache La Poudre River, including all lakes, reservoirs and wetlands from, the inlet of Halligan Reservoir to the confluence with the Cache La Poudre River, except for specific listings in Segment 9.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS 	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics
	
9.	Mainstem of Rabbit Creek and Lone Pine Creek from the source to the confluence with the North Fork of the Cache La Poudre River.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
10.	Mainstem of the Cache La Poudre River from the Monroe Gravity Canal/North Poudre Supply Canal diversion to Shields Street in Ft. Collins, Colorado.	
UP	Aq Life Cold 2
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	Water + Fish Organics	
11.	Mainstem of the Cache La Poudre River from Shields Street in Ft. Collins to a point immediately above the confluence with Boxelder Creek.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=2.7	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Nitrite as a 30 day average.  Fish Ingestion Organics

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 2 
               
BASIN: Cache La Poudre River	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
12.	Mainstem of the Cache La Poudre River from a point immediately above the confluence with Boxelder Creek to the confluence with the South Platte River.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=2.7	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Nitrite as a 30 day average.  

Fish Ingestion Organics

Temporary modification: E.Coli=146/100ml in lower portion below Eaton Draw in Greeley. Expiration date of 2/28/10.	
13a.	All tributaries to the Cache La Poudre River, including all lakes reservoirs and wetlands, from a point immediately above the confluence with the North Fork of the Cache La Poudre River to the confluence with the South Platte River, except for specific listings in Segments 13b, 14, 15 and 16.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
13b.	Mainstem of Boxelder Creek from its source to the confluence with the Cache la Poudre River.	
UP	Aq Life Warm 2

5/15-9/15
Recreation 1b

9/16-5/14
Recreation 2

Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0

5/15-9/15
F.Coli=325/100ml
E.Coli=205/100ml 

9/16-5/14
F.Coli=2000/100ml
E.Coli=630/100ml	NH3(ac)=TVS
NH3(ch)=0.1
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
14.	Horsetooth Reservoir.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
As(ch)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS	Cu(ac/ch)=TVS
Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
	Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
15.	Watson Lake.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
16.	Reservoir #4 (T 9 N, R 68 W), Water Supply Reservoir #3 (T 8 N, R 68 W), Claymore Lake, College Lake, Dixon Reservoir, Robert Benson Lake, Black Hollow Reservoir, Seeley Lake.	
UP	Aq Life Warm 1
Recreation1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

         
REGION: 2 
              
BASIN: Laramie River	
Desig	
Classifications	
NUMERIC STANDARDS	TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	All tributaries to the Laramie River, including all lakes, reservoirs and wetlands, which are within the Rawah Wilderness Area.	
OW	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
2.	Mainstem of the Laramie River, including all tributaries, lakes, reservoirs and wetlands, from the source to the Colorado/Wyoming border, except for specific listing in Segment 1.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 1
               
BASIN: Lower South Platte River	
Desig	
Classifications	
NUMERIC STANDARDS	TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	Mainstem of the South Platte River from the Weld/Morgan County line to the Colorado/Nebraska border.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.10
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modifications:
Se(ch)=6.3g/l (dis)
NO3(ch)=24.2 mg/l.
Expiration date of 2/28/10.	
2a	All tributaries to the South Platte River, including all lakes, reservoirs and wetlands, from the Weld/Morgan County line to the Colorado/Nebraska border, except for the specific listings in Segments 2b and 3.	
UP	Aq Life Warm 2
Recreation 2
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml
E.Coli=630/100ml	CN=0.2
NO2=10
NO3=100
	B=0.75
	As(ch)=100(Trec)
Be(ch)=100(Trec)
Cd(ch)=10(Trec)
CrIII(ch)=100(Trec)	CrVI(ch)=100(Trec)
Cu(ch)=200(Trec)
Pb(ch)=100(Trec)	Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)		
2b.	All tributaries to the South Platte River, including all lakes, reservoirs and wetlands, north of the South Platte River and below 4,500 feet in elevation in Morgan County, north of the South Platte River in Washington County, north of the South Platte River and below 4,200 feet in elevation in Logan County, north of the South Platte River and below 3,700 feet in elevation in Sedgwick County, and the mainstems of Beaver Creek, Bijou Creek and Kiowa Creek from their sources to the confluence with the South Platte River.	
UP	Aq Life Warm 2
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	Temporary modifications:
Springdale Creek
Se(ch)=9.1 g/l (dis);
Beaver Creek
Se(ch)=7.0g/l (dis),
E.Coli=425/100ml.
Expiration date of 2/28/10.	
3.	Jackson Reservoir, Prewitt Reservoir, North Sterling Reservoir, Jumbo (Julesburg), Riverside Reservoir, Empire Reservoir, and Vancil Reservoir.	
UP	Aq Life Warm 1
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS

REGION: 1 and 5
               
BASIN: Republican River	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							
1.	Mainstem of the South Fork of the Republican River from a point 10 miles above Bonny Reservoir to the Colorado-Kansas border.	
UP	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
2.	Bonny Reservoir, Stalker Lake.	
	Aq Life Warm 1
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)
	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
3.	Mainstem of the North Fork of the Republican River from the source to the Colorado/Nebraska border and the mainstem of Chief Creek.	
	Aq Life Cold 1
Recreation 1a
Water Supply
Agriculture	D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.02
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.05
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=WS(dis)
Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)	Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS		
4.	Mainstem of the Arikaree River from the confluence of the North and South Forks to the Colorado/Kansas border.	
	Aq Life Warm 1
Recreation 1a
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5	As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
5.	Mainstem of the Black Wolf Creek from the source to the confluence with the Arikaree River.	
UP	Aq Life Warm 2
Recreation 1a
Water Supply
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=200/100ml
E.Coli=126/100ml
	NH3(ac)=TVS
NH3(ch)=0.06
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	S=0.002
B=0.75
NO2=0.5
NO3=10
Cl=250
SO4=WS	As(ac)=50(Trec)
Cd(ac/ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS
Fe(ch)=WS(dis)	Fe(ch)=1000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Mn(ch)=WS(dis)
Hg(ch)=0.01(Tot)
Ni(ac/ch)=TVS	Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		
6.	All tributaries to the Republican River system in Colorado, including all lakes, reservoirs and wetlands, except for specific listings in Segments 1 through 5.	
UP	Aq Life Warm 2
Recreation 2
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml
E.Coli=630/100ml
	CN=0.2
NO2=10
NO3=100
	B=0.75
	As(ch)=100(Trec)
Be(ch)=100(Trec)
Cd(ch)=10(Trec)
CrIII(ch)=100(Trec)	CrVI(ch)=100(Trec)
Cu(ch)=200(Trec)
Pb(ch)=100(Trec)	Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)		
7.	Mainstem of the North Fork of the Smoky Hill River and mainstem of the Smoky Hill River, including all tributaries, lakes, reservoirs and wetlands, from the source to the Colorado/Kansas border.	
UP	Aq Life Warm 2
Recreation 2
Agriculture	D.O.=5.0 mg/l
pH=6.5-9.0
F.Coli=2000/100ml
E.Coli=630/100ml
	CN=0.2
NO2=10
NO3=100
	B=0.75
	As(ch)=100(Trec)
Be(ch)=100(Trec)
Cd(ch)=10(Trec)
CrIII(ch)=100(Trec)	CrVI(ch)=100(Trec)
Cu(ch)=200(Trec)
Pb(ch)=100(Trec)	Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)		

Table 2
SITE SPECIFIC RADIONUCLIDE STANDARDS*
(in Picocuries/Liter)

The radionuclides listed below shall be maintained at the lowest practical level and in no case shall they be increased by any cause attributable to municipal, industrial, or agricultural practices to exceed the site specific numeric standards.

A.	Ambient based site-specific standards:	

Segment 2 

Standley
Lake       	
Segment 3
Great
Western
Reservoir	
Segment 4a
Segment 5
Woman 
Creek     	
Segment 4a
Segment 4b
Segment 5
Walnut
Creek

Gross Alpha	
6	
5	
7	
11	

Gross Beta	
9 	
12	
8	
19	

Plutonium	
.03	
.03	
0.15** ***	
0.15** ***	

Americium	
.03	
.03	
0.15** ***	
0.15** ***	

Tritium	
500	
500	
500	
500	

Uranium	
3	
4	
11	
10	

B.  Other site-specific standard applicable to segments 2,3,4a, 4b, and 5.	

Curium	
60	
60	
60	
60	

Neptunium	
30	
30	
30	
30	

*Statewide standards also apply for radionuclides not listed above.
**0.15pCi/l Statewide Basic Standards.

***For plutonium and americium measurements in Segment 5 in Woman Creek and Segment 5 in Walnut Creek, attainment will be assessed based on the results of a 12-month flow-weighted rolling average concentration (computed monthly). 

Table 3
Temporary Modifications
Big Dry Creek, Segment 5

Effective until December 31, 2009 for the Walnut Creek portions of segment 5:

Parameter	mg/l

Nitrate 	100
Nitrite	4.5

Effective until December 31, 2009 for all of segment 5:

Parameter	mg/l

Benzene	0.005
Carbon tetrachloride	0.005
1,2-Dichloroethane	0.005
1,1-Dichloroethene	0.007
Tetrachloroethylene	0.005
Trichloroethylene	0.005
All other organic and radiologic parameters are covered by the Basic Standards