REGION: 9

BASIN:  SAN JUAN 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 Navajo River and the Little Navajo River, including all wetlands, tributaries, lakes and reservoirs, from the boundary of the South San Juan Wilderness Area to the Colorado/New Mexico border, except for specific listings in Segment 3.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02 (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 Navajo River from the Colorado/New Mexico border to the confluence with the San Juan River (Southern Ute Indian Reservation).	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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

Southern Ute Indian Reservation.	

3.	Mainstem of the Little Navajo River from the San Juan-Chama diversion to the confluence with the Navajo River; all tributaries to the Navajo River and the Little Navajo River, including all wetlands, lakes and reservoirs, from the San Juan-Chama  diversions to the confluence with the San Juan River.	
	
Aq Life Warm 2
Agriculture
Nov. 1 to April 30
Recreation N

May 1 to Oct. 31
Recreation P
	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=205/100ml	
CN(ac)=0.2
NO3(ac)=10
NO3(ch)=100

B(ch)=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)
Mn(ch)=200(Trec)

Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)

	

4.	All tributaries to the San Juan River, Rio Blanco, and Navajo River including all wetlands, lakes and reservoirs, which are within the Weminuche Wilderness area and South San Juan Wilderness Area.	

OW	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 the San Juan River and the East Fork and West Fork of the San Juan River, from the boundary of the Weminuche Wilderness Area (West Fork) and the source (East Fork) to the confluence with Fourmile Creek, including all wetlands, tributaries, lakes and reservoirs except for wetlands, tributaries, lakes, and reservoirs included in Segment 4.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

6a.	Mainstem of the San Juan River from the confluence with Fourmile Creek to Southern Ute Indian Reservation northern boundary.  Mainstem of Mill Creek from the source to the confluence with the San Juan River.  Echo Canyon Reservoir.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

6b.	Mainstem of San Juan River from the Southern Ute Indian Reservation northern boundary to Navajo Reservoir.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	
Southern Ute Indian Reservation.	

7.	Deleted.	

	

	

	

8.	Navajo Reservoir.	
	
Aq Life Warm 1
Recreation E
Water Supply
Agriculture	
D.O. = 5.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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: 9

BASIN:  SAN JUAN RIVER	
Desig	
Classifications	
	NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS

	
	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							

9a.	Mainstem of the Rio Blanco, including all tributaries, wetlands, lakes, and reservoirs, from the boundary of South San Juan Wilderness Area to the Southern Ute Indian Reservation boundary, except for specific listings in Segment 10.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

9b.	Mainstem of the Rio Blanco, including all tributaries, wetlands, lakes, and reservoirs, from the boundary of the Southern Ute Indian Reservation to the confluence with the San Juan River.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	
Southern Ute Indian Reservation.	

10.	Mainstem of the Rio Blanco River from Echo Ditch to the confluence with the Rio Blanco River.	

Aq Life Cold 2
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05
NO3=10
	
As(ac)=340
As(ch)=100(Trec)
Cd(ac)=TVS(tr)
Cd(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)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	

11a.	All tributaries to the San Juan River, including wetlands, lakes, and reservoirs, from Fourmile Creek to the Southern Ute Indian Reservation boundary except for the specific listings in Segments 1, 4, 5, 6a, 6b, 9a and 9b.	
	
Aq Life Warm 1
Agriculture 
Nov. 1 to April 30
Recreation N

May 1 to Oct. 31
Recreation E	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05
NO3=10
	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac)=TVS(tr)
Cd(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)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	
Temporary modification:
Fe(ch)=1100.
Expiration date of 12/31/11.	

11b.	All tributaries to the San Juan River, including wetlands, lakes and reservoirs from the Southern Ute Indian Reservation boundary to the Colorado/New Mexico border except for the specific listings in Segments 1, 4, 5, 6a, 6b, 7, 8, 9a and 9b.	
	
Aq Life Warm 1
Agriculture
Nov. 1 to April 30
Recreation N

May 1 to Oct. 31
Recreation E	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=126/100ml 	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05
NO3=10	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac)=TVS(tr)
Cd(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)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS	
Southern Ute Indian Reservation.	

12a.	All tributaries to the San Juan River in Archuleta County, including all wetlands, lakes and reservoirs, except for specific listings in Segments 1, 4, 5, 6a, 6b, 9a, 9b, 11a, 11b and 12b.	

	UP	
Aq Life Warm 2
Agriculture
Nov. 1 to April 30
Recreation N 
May 1 to Oct. 31
Recreation P	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=205/100ml	
CN(ac)=0.2
NO3(ac)=10
NO3(ch)=100

B(ch)=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)
Mn(ch)=200(Trec)	
Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)	

12b.	All tributaries to the San Juan River in Archuleta County within the Southern Ute Indian Reservation except for the specific listings in Segments 1, 4, 5, 6a, 6b, 9a, 9b, 11a and 11b.	

	UP	
Aq Life Warm 2
Agriculture
Nov. 1 to April 30
Recreation N 

May 1 to Oct. 31
Recreation P	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=205/100ml	
CN(ac)=0.2
NO3(ac)=10
NO3(ch)=100	
B(ch)=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)
Mn(ch)=200(Trec)	
Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)	
Southern Ute Indian Reservation.	

REGION: 9

BASIN:  PIEDRA 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 Piedra River, including all wetlands, lakes and reservoirs, which are within the Weminuche Wilderness Area.	

OW	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 Piedra River, including the East and Middle Forks, from the boundary of the Weminuche Wilderness Area to the confluence with Indian Creek, except for the specific listing in Segment 3.	
	
Aq Life Cold 1
Water Supply
Agriculture
Nov. 1 to March 31
Recreation N 

April 1 to Oct. 31
Recreation E	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
Nov. 1 to March 31
E.Coli=630/100ml

April 1 to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

3.	Mainstem of the East Fork of the Piedra River from the Piedra Falls Ditch to the confluence with Pagosa Creek.	
	
Aq Life Cold 1
Water Supply
Agriculture
Nov. 1 to March 31
Recreation N 

April 1 to Oct. 31
Recreation E	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
Nov. 1 to March 31
E.Coli=630/100ml

April to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

4a.	Mainstem of the Piedra River from the confluence with Indian Creek to  Southern Ute Indian Reservation.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

4b.	Mainstem of the Piedra River from the Southern Ute Indian Reservation boundary to Navajo Reservoir.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)
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	
Southern Ute Indian Reservation.	

5.	All tributaries to the Piedra River, including all wetlands, lakes and reservoirs, from the boundary of the Weminuche Wilderness Area to a point immediately below the confluence with Devil Creek.  Williams Creek Reservoir.	
	
Aq Life Cold 1
Water Supply
Agriculture
Nov. 1 to April 30
Recreation N 

May 1 to Oct. 31
Recreation E	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

6a.	All tributaries to the Piedra River, including all wetlands, lakes and reservoirs, from a point immediately below the confluence with Devil Creek to Southern Ute Indian Reservation boundary, except for the specific listings in Segments 2 and 7.	

UP	
Aq Life Warm 2
Recreation P
Water Supply
Agriculture	
D.O. = 5.0 mg/l
pH = 6.5-9.0
E.Coli=205/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02-10(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(ch)=WS(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	

REGION: 9

BASIN:  PIEDRA RIVER 	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							

6b.	All tributaries including wetlands, lakes and reservoirs to the Piedra River from the Southern Ute Indian Reservation boundary to Navajo Reservoir. 	

	UP	
Aq Life Warm 2
Recreation P
Water Supply
Agriculture	
D.O. = 5.0 mg/l
pH = 6.5-9.0
E.Coli=205/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.25
NO2=0.5
NO3=10
Cl=250
SO4=WS
	
As(ac)=340
As(ch)=0.02-10(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(ch)=WS(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	
Southern Ute Indian Reservation.	

7.	Hatcher Lake, Stevens Lake, Pagosa Lake, Village Lake and Forest Lake.	
	
Aq Life Warm 1
Water Supply
Agriculture
Dec. 1 to March 1
Recreation N

March 2 to Nov. 30
Recreation E	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Dec. 1 to March 1
E.Coli=630/100ml

March 2 to Nov. 30
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.25
NO2=0.5
NO3=10
Cl=250
SO4=WS	
As(ac)=340
As(ch)=0.02(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: 9

BASIN:  LOS PINOS 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 Los Pinos River, including all wetlands, lakes and reservoirs, which are within the Weminuche Wilderness Area.	

OW	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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.	Mainstem of the Los Pinos River from the boundary of the Weminuche Wilderness Area to the boundary of the Southern Ute Indian Reservation except for the specific listing in Segment 3.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

2b.	Mainstem of the Los Pinos River from the boundary of the Southern Ute Indian Reservation to the Colorado/New Mexico border.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	
Southern Ute Indian Reservation.	

3.	Vallecito Reservoir.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 the Los Pinos River and Vallecito Reservoir, including all wetlands, lakes and reservoirs, from the boundary of the Weminuche Wilderness Area to a point immediately below the confluence with Bear Creek (T35N, R7W), except for the specific listing in Segment 5; mainstems of Beaver Creek, Ute Creek, and Spring Creek from their sources to  the boundary of the Southern Ute Indian Reservation.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

4b.	Mainstems of Beaver Creek, Ute Creek and Spring Creek from the boundaries of the Southern Ute Indian Reservation to their confluences with the Los Pinos River.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	
Southern Ute Indian Reservation.	

5.	Mainstem of Vallecito Creek from the boundary of the Weminuche Wilderness Area to Vallecito Reservoir.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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.	All tributaries to the Los Pinos River, including all wetlands, lakes and reservoirs, from a point immediately below the confluence with Bear Creek (T35N, R7W) to the boundary of the Southern Ute Indian Reservation except for specific listings in Segment 4a.	
	
Aq Life Cold 2
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
CN(ac)=0.2
NO2(ac)=10
NO3(ac)=100	
B(ch)=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)
Mn(ch)=200(Trec)	
Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)	

REGION: 9

BASIN:  LOS PINOS RIVER 	
Desig	
Classifications	
	NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC

mg/l	
METALS

ug/l		

Stream Segment Description							

6b.	All tributaries to the Los Pinos River, including all wetlands, lakes and reservoirs, from the Southern Ute Indian Reservation boundary to the Colorado/New Mexico border, except for the specific listing in Segment 4b.	
	
Aq Life Cold 2
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
CN(ac)=0.2
NO2(ac)=10
NO3(ac)=100	
B(ch)=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)
Mn(ch)=200(Trec)
	
Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)

Southern Ute Indian Reservation.	

7a.	All tributaries to the San Juan River in La Plata County except for specific listings in Segments 1, 2a, 2b, 4a, 4b, 5, 6a, 6b and 7b.	
	
Aq Life Cold 2
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(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.	All tributaries to the San Juan River in La Plata County within the Southern Ute Indian Reservation except for specific listings in Segments 1, 2a, 2b, 4a, 4b, 5, 6a, and 6b.	
	
Aq Life Cold 2
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	
Southern Ute Indian Reservation.	

REGION: 9

BASIN:  ANIMAS AND FLORIDA 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 Animas River and Florida River, including all wetlands, lakes and reservoirs, which are within the Weminuche Wilderness Area.	

OW	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 Animas River, including all tributaries and wetlands, from the outlet of Denver Lake to a point immediately above the confluence with Maggie Gulch, except for specific listings in Segment 6.	

UP	
Recreation E
Agriculture
	
D.O. = 3.0 mg/l
pH = 5.8-9.0
E.Coli=126/100ml	
CN(ac)=0.2
NO2(ac)=10
NO3(ch)=100	
B(ch)=0.75	
As(ch)=100(Trec)	CrVI(ch)=100(Trec)	Ni(ch)=200(Trec)
Be(ch)=100(Trec)	Cu(ch)=200(Trec)	Se(ch)=20(Trec)
Cd(ch)=10(Trec)	Pb(ch)=100(Trec)	Zn(ch)=2000(Trec)
CrIII(ch)=100(Trec)
The concentration of dissolved aluminum, cadmium, copper, iron, lead,manganese, and zinc that is directed toward maintaining and achieving water quality standards established for segments 3a, 4a and 4b.		
Temporary modification:  existing ambient quality for all metals.  Expiration date of 12/31/11.	

3a.	Mainstem of the Animas River, including wetlands, from a point immediately below the confluence with Maggie Gulch to immediately above the confluence with Cement Creek.	
	
Aq Life Cold 1
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75	
Al(ac/ch)=750(Trec)	CrVI(ac/ch)=TVS	Se(ac/ch)=TVS
As(ac)=340 
As(ch)=100(Trec)	Fe(ch)=1000(Trec)	Ni(ac/ch)=TVS	
Cd(ac)=TVS(tr)	Pb(ac/ch)=TVS	Ag(ac)=TVS
CrIII(ac/ch)=TVS	Hg(ch)=0.01(tot)	Ag(ch)=TVS(tr)	
Cu(ac/ch)=TVS
Standards for Cd, Mn and Zn are listed on Table 1.	
Aquatic life indicator
goal: Brook Trout.  Temporary  modifications for:
Cd(ch)=3.0 Mn(ch)=3203 Zn(ch)=862
Expiration date of 12/31/11.	

3b.	Mainstem of the Animas River, including wetlands, from a point immediately above the confluence with Cement Creek to a point immediately above the confluence with Mineral Creek. 	

UP	
Sept. 11 to May 14
Recreation N 

May 15 to Sept. 10
Recreation E	
D.O. = 3.0 mg/l 
pH = 6.0-9.0
Sept. 11 to May 14
E.Coli=630/100ml

May 15 to Sept. 10
E.Coli=126/100ml 	

The concentration of dissolved aluminum, cadmium, copper, iron, lead, manganese, and zinc that is directed toward maintaining and achieving water quality standards established for segments 4a and 4b.	
Temporary modification:  Existing ambient quality for all metals.  Expiration date of 12/31/11.	

3c.	Arrastra Gulch including all lakes, tributaries, and wetlands from the source to the confluence with the Animas River.	
UP
	
Aq Life Cold 2
Recreation E
Agriculture	
D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
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/ch)=TVS	
Temporary modifications:
Cu(ch)=6.6 
Zn(ch)=184
no Cu, Zn acute.
Expiration date of 12/31/11.	

4a.	Mainstem of the Animas River, including wetlands, from a point immediately above the confluence with Mineral Creek to a point immediately above the confluence with Deer Park Creek.	

UP	
Aq Life Cold 2
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
E.Coli=126/100ml
Standards for pH are listed on Table 1.	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
	
As(ch)=100(Trec)
As(ac)=340
Cu(ac/ch)=TVS	Se(ac/ch)=TVS
Cd(ac)=TVS(tr)	Pb(ac/ch)=TVS	Ag(ac)=TVS
Cd(ch)=TVS		Mn(ac/ch)=TVS	Ag(ch)=TVS(tr)
CrIII(ac/ch)=TVS	Hg(ch)=0.01(tot)
CrVI(ac/ch)=TVS	Ni(ac/ch)=TVS
Standards for Al, Fe and Zn are listed on Table 1.	
Aquatic life indicator
goal: Brook Trout
Temporary modifications:
Al(ch)=2523(Trec)
Fe(ch)=4204(Trec)
Zn(ch)=730
Cu(ch)=20
Cd(ch)=2.5
pH=5.3
Expiration date of 12/31/11.	

Region: 9

BASIN:  ANIMAS AND FLORIDA RIVER	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS

ug/l		

Stream Segment Description							

4b.	Mainstem of the Animas River, including wetlands, from a point immediately above  the confluence with Deer Park Creek to Bakers Bridge.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml
	
NH3(ac/ch)=TVS
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	
Al(ac/ch)=TVS
As(ch)=0.02(Trec)
As(ac)=340
Cd(ac)=TVS(tr)
Cd(ch)=TVS
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(ch)=WS(dis)
Mn(ac/ch)=TVS
Ni(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
	
Temporary modification:
Zn(ch)=184
Expiration date of 12/31/11.	

5a.	Mainstem of the Animas River, including wetlands, from Bakers Bridge to the Southern Ute Indian Reservation boundary.  	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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	
Al(ac/ch)=TVS
As(ac)=340
As(ch)=0.02(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	

5b.	Mainstem of the Animas River, including wetlands, from the Southern Ute Indian Reservation boundary to the Colorado/New Mexico border.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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	
Al(ac/ch)=TVS
As(ac)=340
As(ch)=0.02(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	
Southern Ute Indian Reservation.	

6.	Mainstem of the Animas River from the source to the outlet of Denver Lake.  Mainstem, including all tributaries, wetlands, lakes and reservoirs of Cinnamon Creek, Grouse Creek,  Picayne Gulch, and Minnie Gulch.  All tributaries including the tributaries’ wetlands, lakes and reservoirs to the Animas River from immediately above Maggie Gulch to Elk Park except for those listed under segments 3c, 7, 8 and 9.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 Cement Creek, including all tributaries, wetlands, lakes, and reservoirs, from the source to the confluence with the Animas River.	

UP	
Recreation E
Agriculture	
D.O. = 3.0 mg/l
pH = 3.7-9.0
E.Coli=126/100ml	
CN(ac)=0.2
NO2(ac)=10
N03(ac)=100	
B(ch)=0.75	
As(ch)=100(Trec)	CrVI(ch)=100(Trec)	Ni(ch)=200(Trec)
Be(ch)=100(Trec)	Cu(ch)=200(Trec)	Se(ch)=20(Trec)
Cd(ch)=10(Trec)	Pb(ch)=100(Trec)	Zn(ch)=2000(Trec)
CrIII(ch)=100(Trec)		
The concentration of dissolved aluminum, cadmium, copper, iron, lead, manganese, and zinc that is directed toward maintaining and achieving water quality standards established for segments 4a and 4b.	
Temporary modification:  existing ambient quality for all metals.  Expiration date of 12/31/11.	

8.	Mainstem of Mineral Creek, including wetlands, from the source to a point immediately above the confluence with South Mineral Creek.  All tributaries on the east side of this segment of Mineral Creek including wetlands, lakes and reservoirs except for Big Horn Creek.  Mainstem of the Middle Fork of Mineral Creek including all tributaries, wetlands, lakes and reservoirs from the source to the confluence with Mineral Creek except for Crystal Lake and its exiting tributary to confluence with Middle Fork of Mineral Creek.	

UP	
Recreation E
Agriculture	
D.O. = 3.0 mg/l
pH = 4.5 - 9.0
E.Coli=126/100ml	
CN(ac)=0.2
NO2(ac)=10
N03(ac)=100	
B(ch)=0.75	
As(ch)=100(Trec)	CrVI(ch)=100(Trec)	Ni(ch)=200(Trec)
Be(ch)=100(Trec)	Cu(ch)=200(Trec)	Se(ch)=20(Trec)
Cd(ch)=10(Trec)	Pb(ch)=100(Trec)	Zn(ch)=2000(Trec)
CrIII(ch)=100(Trec)		
The concentration of dissolved aluminum, cadmium, copper, iron, lead, manganese, and zinc that is directed toward maintaining and achieving water quality standards established for segments 4a and 4b.	
Temporary modification: existing ambient quality for all metals.  Expiration date of 12/31/11.	

9.	Mainstem of Mineral Creek, including wetlands, from immediately above the confluence with South Mineral Creek to the confluence with the Animas River.	

UP	
Aq Life Cold 2
Recreation E
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
E.Coli=126/100ml
Standards for pH are listed on Table 1.	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ch)=100(Trec)
As(ac)=340	Cu(ac)=TVS	Ni(ac/ch)=TVS
Cd(ac/ch)=TVS(tr)	Pb(ac/ch)=TVS	Se(ac/ch)=TVS
CrIII(ac/ch)=TVS	Mn(ac/ch)=TVS	Ag(ac)=TVS
CrVI(ac/ch)=TVS	Hg(ch)=0.01(tot)	Ag(ch)=TVS(tr)
Zn(ac)=TVS
Standards for Al, Cu, Fe and Zn are listed on Table 1.	
Temporary modifications:
Al(ch)=3544(Trec)
Cu(ch)=22
Fe(ch)=5023(Trec)
Zn(ac/ch)=340
Expiration date of 12/31/11.
Aquatic Life indicator goal:  Macroinvertebrates; Brook Trout corridor 	

REGION: 9

BASIN:  ANIMAS AND FLORIDA RIVER 	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS

ug/l		

Stream Segment Description							

10.	Mainstem of the Florida River from the boundary of the Weminuche Wilderness Area to the Florida Farmers Canal Headgate, except for the specific listings in Segment 12b.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O.=6.0 mg/l
D.O.= 7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac/ch)=TVS
Cu(ac/cu)=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 
Zn (ch)=TVS(sc)

11a.	Mainstem of the Florida River from the Florida Farmers Canal Headgate to the Southern Ute Indian Reservation boundary.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	

11b.	Mainstem of the Florida River from the Southern Ute Indian Reservation boundary to the confluence with the Animas River.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	
Southern Ute Indian Reservation.	

12a.	All tributaries to the Animas River, including all lakes and reservoirs from a point immediately above the confluence with Elk Cr. to a point immediately below the confluence with Hermosa Cr. except for specific listings in Segments 12b, 12c and 15.  All tributaries to the Florida River including all lakes and reservoirs from the source to the outlet of Lemon Reservoir except the specific listing in Segment 1.  Mainstems of True, Red and Shearer Creeks from their sources to their confluences with the Florida River.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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		

12b.	Lemon Reservoir.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	

12c.	Hermosa Creek, including all tributaries, from the source to immediately below the confluence with Long Hollow, except for the East Fork of Hermosa Creek.	

OW	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 Junction Creek including all tributaries, from U.S. Forest Boundary to confluence with Animas River.	

Aq Life Cold 2
Recreation E
Agriculture	
D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=7.6(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/ch)=TVS	
Fish Ingestion Standards	

13b.	 All tributaries to the Animas River, including all lakes and reservoirs, from a point immediately below the confluence with Hermosa Creek to the  Southern Ute Indian Reservation boundary except for the specific listings in Segments 13a and 14; all tributaries to the Florida River, including all lakes and reservoirs, from the outlet of Lemon Reservoir to the Southern Ute Indian Reservation boundary, except for specific listings in Segment 12a.	

Aq Life Cold 2
Recreation E
Water Supply
Agriculture	
D.O.= 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 Standards	

REGION: 9

BASIN:  ANIMAS AND FLORIDA RIVER	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS
ug/l		

Stream Segment Description							

13c.	All tributaries to the Animas River, including all lakes and reservoirs, from the  Southern Ute Indian Reservation boundary to the Colorado/New Mexico border, except for Segments 10, 11, 12a, 12b, 13a, and 14; all tributaries to the Florida River from the Southern Indian Reservation boundary to the confluence with the Animas River, except for Segment 12a.	

Aq Life Cold 2
Recreation E
Water Supply
Agriculture	
D.O.= 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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 Standards. Southern Ute Indian Reservation.	

14.	Mainstem of Lightner Creek from the source to the confluence with the Animas River.	

Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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.	Mainstem of Purgatory Creek from source to Cascade Creek, Goulding Creek from the source to Elbert Creek, and Nary Draw from the source to Haviland Lake.	

Aq Life Cold 2
Recreation E
Water Supply
Agriculture	
D.O.= 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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: 9

BASIN:  LA PLATA RIVER, MANCOS RIVER, McELMO CREEK, AND SAN JUAN RIVER IN MONTEZUMA COUNTY AND DOLORES COUNTY	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS
ug/l		

Stream Segment Description							

1.	Mainstem of the La Plata River, including all wetlands, tributaries, lakes, and reservoirs, from the source to the Hay Gulch diversion south of Hesperus.	
	
Aq Life Cold 1
Recreation P
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=205/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

2a.	Mainstem of the La Plata River from the Hay Gulch diversion south of Hesperus to the boundary of Southern Ute Indian Reservation.	
	
Aq Life Cold 2
Agriculture
Nov. 1 to April 30
Recreation N 

May 1 to Oct. 31
Recreation E	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct.. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(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)=TVS 
Zn(ch)= TVS(sc)	
Fish Ingestion Standards	

2b.	Mainstem of the La Plata River from the boundary of the Southern Ute Indian Reservation to the Colorado/New Mexico border.	

UP	
Aq Life Warm 2
Agriculture
Nov. 1 to April 30
Recreation P

May 1 to Oct. 31
Recreation E	
D.O.=5.0 mg/l
pH = 6.5-9.0
Nov. 1 to March 31
F.Coli=325/100ml
E.Coli=205/100ml

April 1 to Oct.. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS
	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	
Southern Ute Indian Reservation.	

3a.	All tributaries to the La Plata River, including all wetlands, lakes and reservoirs, from the Hay Gulch diversions south of Hesperus to the Southern Ute Indian Reservation boundary.	

UP	
Aq Life Warm 2
Recreation N 
Agriculture	
D.O. = 5.0 mg/l
pH = 6.5-9.0
E.Coli=630/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(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:
Fe(ch)=1920.
Expiration date of 12/31/11.	

3b.	All tributaries to the La Plata River, including all wetlands, lakes and reservoirs, from the boundary of the Southern Ute Indian Reservation to the Colorado/New Mexico border.	

UP	
Aq Life Warm 2
Recreation N 
Agriculture	
D.O. = 5.0 mg/l
pH = 6.5-9.0
E.Coli=630/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	
Southern Ute Indian Reservation.	

4a.	Mainstem of the Mancos River, including all wetlands, tributaries, lakes, and reservoirs, from the source of the East, West and Middle Forks to Hwy 160, except for the specific listing in segment 4b.	

Aq Life Cold 1
Water Supply
Agriculture
Nov. 1 to April 30
Recreation N 

May 1 to Oct. 31
Recreation E	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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.	Mancos Revervoir (Jackson Gulch Reservoir)		
Aq Life Cold 1
Water Supply
Agriculture
Recreation E	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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	

5a.	Mainstem of the Mancos River from Hwy 160 to the boundary of the Ute Mountain Indian Reservation and mainstem of Weber Canyon from source to confluence with Mancos River.	
	
Aq Life Warm 2
Agriculture
Nov. 1 to April 30
Recreation N 
May 1 to Oct. 31
Recreation E	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
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 Modifcation:
NH3=old TVS.  Expiration date 12/31/2011.	

REGION: 9

BASIN:  LA PLATA RIVER, MANCOS RIVER, McELMO CREEK, AND SAN JUAN RIVER IN MONTEZUMA COUNTY AND DOLORES COUNTY	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS
ug/l		

Stream Segment Description							

5b.	Mainstem of the Mancos River from the boundary of the Ute Mountain Indian Reservation to the Colorado/New Mexico border.	
	
Aq Life Warm 2
Agriculture
Nov. 1 to April 30
Recreation N

May 1 to Oct. 31
Recreation E	
D.O. = 5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
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	
Ute Mountain Indian Reservation.	

6a.	All tributaries to the Mancos River, including all wetlands, lakes and reservoirs, from Hwy 160 to the boundary of the Ute Mountain Indian Reservation, except for specific listing in segment 5a and 6c.	

Aq Life Warm 2 
Agriculture
Nov. 1 to April 30
Recreation N 

May 1 to Oct. 31
Recreation P	
D.O.=5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=205/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	

6b.	All tributaries to the Mancos River, including all wetlands, lakes and reservoirs, from the boundary of the Ute Mountain Indian Reservation to the Colorado/New Mexico border.	
	
Aq Life Warm 2
Agriculture
Nov. 1 to April 30
Recreation N

May 1 to Oct. 31
Recreation P	
D.O.=5.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=205/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	
Ute Mountain Indian Reservation.	

6c.	All tributaries to the Mancos River located in Mesa Verde National Park.	
OW	
Aq Life Warm 1 
Agriculture
Recreation E	
D.O.=5.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS		

7a.	Mainstem of McElmo Creek from the source to the Colorado/Utah border, except for the specific listings in Segment 7b. Mainstem of Yellow Jacket Creek, including all tributaries, wetlands, lakes and reservoirs, from the source to the confluence with McElmo Creek. 	
	
Aq Life Warm 1
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	
Fe(ch)=2200(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 Modifcations:
NH3=old TVS, 
Expiration date of 12/31/2011.	

7b.	Mainstem of McElmo Creek within Ute Mountain Indian Reservation.	
	
Aq Life Warm 1
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS
Cu(ac/ch)=TVS	
Fe(ch)=1000
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	
Ute Mountain Indian Reservation.	

8a.	All tributaries to McElmo Creek, including all wetlands, lakes and reservoirs, from the source to the Colorado/Utah border, except for specific listings in Segments 7a, 8b, 8c and 11.	
UP	
Aq Life Warm 2
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH=6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(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 Modifcation:
NH3=old TVS, Fe(ch)=1500(trec)
expiration date 12/31/2011.

8b.	All tributaries to McElmo Creek, including all wetlands, lakes and reservoirs, within the Ute Mountain Indian Reservation.	
UP	
Aq Life Warm 2
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH=6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac/ch)=TVS	
Ute Mountain Indian Reservation.	

8c.	Unnamed tributary to Ritter Draw.	

UP	
Aq Life Warm 2
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH=6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=100(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(c/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=1000(Trec)
Mn(ac/ch)=TVS
Pb(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 Modifcation:
NH3=existing quality. Expiration date 12/31/2013.	

REGION: 9

BASIN:  LA PLATA RIVER, MANCOS RIVER, McELMO CREEK, AND SAN JUAN RIVER IN MONTEZUMA COUNTY AND DOLORES COUNTY	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS
ug/l		

Stream Segment Description							

9.	Mainstem of the San Juan River in Montezuma County.	
	
Aq Life Warm 1
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH=6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.5	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac/ch)=TVS
CrIII(ac/ch)=TVS
CrVI(ac/ch)=TVS	
Cu(ac/ch)=TVS
Fe(ch)=2200(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	
Ute Mountain Indian Reservation.	

10a.	All tributaries to the San Juan River in Montezuma and Dolores Counties, including all wetlands, lakes and reservoirs, except for the specific listings in Segments 2 through 8b and Segments 10b and 11.	

UP	
Aq Life Warm 2
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH=6.5-9.0
E.Coli=126/100ml	
CN(ac)=0.2
NO3(ac)=10
NO3(ch)=100	
B(ch)=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)
Mn(ch)=200(Trec)	
Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)

	

10b.	All tributaries to the San Juan River in Montezuma County within the Ute Mountain Indian Reservation, including all wetlands, lakes and reservoirs, except for the specific listings in Segments 2 through 8b and Segment 11.	

UP	
Aq Life Warm 2
Recreation E
Agriculture	
D.O. = 5.0 mg/l
pH=6.5-9.0
E.Coli=126/100ml	
CN(ac)=0.2
NO3(ac)=10
NO3(ch)=100	
B(ch)=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)
Mn(ch)=200(Trec)	
Ni(ch)=200(Trec)
Se(ch)=20(Trec)
Zn(ch)=2000(Trec)
	
Ute Mountain Indian Reservation.	

11.	Narraguinnep, Puett and Totten Reservoirs.	
	
Aq Life Warm 1
Recreation E
Water Supply
Agriculture	
D.O. = 5.0 mg/l
pH=6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(Trec)
Cd(ac/ch)=TVS
CrIII(ch)=100(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: 9

BASIN:  DOLORES RIVER	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS
ug/l		

Stream Segment Description							

1.	 ll tributaries to the Dolores River and West Dolores River, including all wetlands, tributaries, lakes, and reservoirs, which are within the Lizard Head Wilderness area.	
OW	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

2.	Mainstem of the Dolores River from the source to a point immediately above the confluence with Horse Creek.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ch)=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)=TVS 
Zn(ch)= TVS(sc)		

3.	Mainstem of the Dolores River from a point immediately above the confluence with Horse Creek to a point immediately above the confluence with Bear Creek.	
	
Aq Life Cold 1
Recreation E
Agriculture	
D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac)=TVS
Cd(ch)=TVS
CrIII(ch)=100(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		

4a.	Mainstem of the Dolores River from a point immediately above the confluence with Bear Creek to the bridge at Bradfield Ranch (Forest Route 505, near Montezuma/Dolores County Line).	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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.	McPhee Reservoir and Summit Reservoir.		
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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.	All tributaries to the Dolores River and West Dolores River, including all wetlands, lakes and reservoirs, from the source to a point immediately below the confluence with the West Dolores River except for specific listings in Segments 1 and 6 through 10; mainstem of Beaver Creek (including Plateau Creek) from the source to the confluence with the Dolores River. Groundhog Reservoir.		
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	Chronic zinc sculpin standard applies to Silver Creek and Fish Creek.	

6.	Mainstem of the Slate Creek and Coke Oven Creek, from the Lizard Head Wilderness Area boundary  to their confluences with the Dolores River.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml
	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(Trec)
Cd(ac/ch)=TVS
CrIII(ch)=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 Coal Creek from the boundary of the Lizard Head Wilderness Area to the confluence with the Dolores River.

Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=TVS 
Zn(ch)= TVS(sc)	

8.	Mainstem of Horse Creek from the source to the confluence with the Dolores River.	
	
Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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: 9

BASIN:  DOLORES RIVER	
Desig	
Classifications	
NUMERIC STANDARDS	
TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	

	
PHYSICAL
and
BIOLOGICAL	
INORGANIC
mg/l	
METALS
ug/l		

Stream Segment Description							

9.	Mainstem of Silver Creek from a point immediately below the Town of Rico's water supply diversion to the confluence with the Dolores River.	
	
Aq Life Cold 2
Agriculture
Nov. 1 to April 30
Recreation N

May 1 to Oct. 31
Recreation E	
D.O. = 6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
Nov. 1 to April 30
E.Coli=630/100ml

May 1 to Oct. 31
E.Coli=126/100ml	
NH3(ac/ch)=TVS
Cl2(ac)=0.019
Cl2(ch)=0.011
CN=0.005	
S=0.002
B=0.75
NO2=0.05	
As(ac)=340
As(ch)=7.6(Trec)
Cd(ac)=TVS(tr)
Cd(ch)=TVS
CrIII(ch)=100(Trec)
CrVI(ac/ch)=TVS	
Cu(ac/ch)=TVS
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	

Fish Ingestion	

10.	Mainstem of the West Dolores River from the Lizard Head Wilderness Area boundary to the confluence with the Dolores River.	

Aq Life Cold 1
Recreation E
Water Supply
Agriculture	
D.O. = 6.0 mg/l
D.O. (sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)=50(dis)
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.	All tributaries to the Dolores River, including all wetlands, lakes and reservoirs, from a point immediately below the confluence of the West Dolores River, to the bridge at Bradfield Ranch (Forest Route 505, near Montezuma/Dolores County Line), except for the specific listing in Segments 4 and 5.	
	
Aq Life Cold 2
Recreation E
Water Supply
Agricultur
	
D.O.=6.0 mg/l
D.O.(sp)=7.0 mg/l
pH = 6.5-9.0
E.Coli=126/100ml	
NH3(ac/ch)=TVS
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)=340
As(ch)=0.02(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)
Mn(ac/ch)=TVS
Hg(ch)=0.01(tot)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac/ch)=TVS
Zn(ac)=TVS 
Zn(ch)= TVS(sc)	
Water + Fish Standards	

TABLE 1

ANIMAS RIVER BASIN 
AQUATIC LIFE INDICATOR GOAL: BROOK TROUT

Segment 3a
Acute Standards

JAN	
FEB	
MAR	
APR	
MAY	
JUNE	
JULY	
AUG	
SEPT	
OCT	
NOV	
DEC	

Zn	
720	
780	
1060	
1200	
760	
410	
280	
340	
380	
440 	
510	
590	

Chronic Standards

JAN	
FEB	
MAR	
APR	
MAY	
JUNE	
JULY	
AUG	
SEPT	
OCT	
NOV	
DEC	

Cd	
TVS	
TVS	
TVS	
3.5	
2.2	
TVS	
TVS	
TVS	
TVS 	
TVS	
TVS	
TVS	

Mn	
TVS	
TVS	
2571	
2179	
TVS	
TVS	
TVS	
TVS	
TVS	
TVS	
TVS	
TVS	

Zn	
720	
780	
1060	
1200	
760	
410	
280	
340	
380	
440	
510	
590	

Segment 4a

Acute Standards

	
JAN	
FEB	
MAR	
APR	
MAY	
JUNE	
JULY	
AUG	
SEPT	
OCT	
NOV	
DEC	

Al(Trec)	
3100	
3550	
2800	
2020	
1010	
740	
700	
1360	
1490	
1610	
2280	
2570	

Zn	
460	
520	
620	
570	
430	
250	
170	
240	
290	
340 	
380	
420	

Chronic Standards

	
JAN	
FEB	
MAR	
APR	
MAY	
JUNE	
JULY	
AUG	
SEPT	
OCT	
NOV	
DEC	

pH	
5.9-9.0	
5.7-9.0	
6.2-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
5.9-9.0	

Al(Trec)	
3100	
3550	
2800	
2020	
1010	
740	
700	
1360	
1490	
1610 	
2280	
2570	

Fe	
3473	
2961	
3776	
3404	
2015	
1220	
1286	
1830	
1623	
2258	
2631	
3511	

Zn	
460	
520	
620	
570	
430	
250	
170	
240	
290	
340	
380	
420	

Segment 9

Acute Standards

	
JAN	
FEB	
MAR	
APR	
MAY	
JUNE	
JULY	
AUG	
SEPT	
OCT	
NOV	
DEC	

Al(Trec)	
4680	
4950	
4560	
3800	
1390	
1350	
1290	
2040	
2570	
2680	
3450	
4050	

Chronic Standards

	
JAN	
FEB	
MAR	
APR	
MAY	
JUNE	
JULY	
AUG	
SEPT	
OCT	
NOV	
DEC	

pH	
4.9-9.0	
4.8-9.0	
4.9-9.0	
5.9-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.5-9.0	
6.2-9.0	
5.4-9.0	

Al(Trec)	
4680	
4950	
4560	
3800	
1390	
1350	
1290	
2040	
2570	
2680	
3450	
4050	

Cu	
TVS	
TVS	
TVS	
18	
20	
TVS	
TVS	
TVS	
TVS	
TVS	
TVS	
TVS	

Fe	
3420	
3800	
4370	
3370	
3150	
2210	
2275	
2280	
3020	
3580	
3620	
3490	

Zn	
TVS	
TVS	
TVS	
TVS	
230	
TVS	
TVS	
TVS	
TVS	
TVS	
TVS	
TVS