REGULATION NO. 36
CLASSIFICATIONS AND NUMERIC STANDARDS FOR
RIO GRANDE BASIN 
. . . .
36.6 	TABLES

STREAM CLASSIFICATIONS and WATER QUALITY STANDARDS
REGION: 8

BASIN: Alamosa River/La Jara Creek/Conejos River	Desig	Classifications	NUMERIC STANDARDS	TEMPORARY
MODIFICATIONS
AND
QUALIFIERS	
			PHYSICAL
and
BIOLOGICAL	INORGANIC
mg/l	METALS
ug/l		
Stream Segment Description							

3b.	Mainstem of the Alamosa River from immediately above the confluence with the Wightman Fork to immediately above the confluence with Fern Creek.	

UP	
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(tr)
Cd(ch)=TVS
CrIII(ac)=50(Trec)
CrVI(ac)/ch)=TVS

Seasonal Stds.
5/1-6/30
Al(ch)=3,000(Trec)
Al(ch)=41
Al(ac)=4,300(Trec)
Al(ac)=41
7/1-4/30
Al(ch)=3,000(Trec)
Al(ch)=317
Al(ac)=3,100(Trec)
Al(ac)=756	
Cu(ac)=TVS
Cu(ch)=30
Fe(ch)=12000(Trec)
Pb(ac/ch)=TVS
Mn(ac/ch)=TVS
Hg(ch)=0.01(Trec)	
Ni(ac/ch)=TVS
Se(ac/ch)=TVS
Ag(ac)=TVS
Ag(ch)=TVS(tr)
Zn(ac/ch)=TVS

	

36.32	STATEMENT OF BASIS SPECIFIC STATUTORY AUTHORITY AND PURPOSE DECEMBER 10, 2012 RULEMAKING; FINAL ACTION JANUARY 14, 2013 EFFECTIVE DATE JUNE 30, 2013
The provisions of C.R S. 25-8-202(1)(a), (b) and (2); 25-8-203; 25-8-204; and 25-8-402; provide the specific statutory authority for adoption of these regulatory amendments.  The Commission also adopted in compliance with 24-4-103(4) C.R.S. the following statement of basis and purpose.
BASIS AND PURPOSE
Pursuant to the requirements in the Basic Standards (at 31.7(3)), the Commission reviewed the status of Temporary Modifications scheduled to expire before December 31, 2014, to determine whether the Temporary Modification should be modified, eliminated or extended.  
Temporary Modifications of standards on two segments were reviewed.  The Basic Standards Statement of Basis for the 2010 hearing records the Commission’s intent regarding temporary modifications. (see 31.48 at I.A)
Since temporary modifications have no impact on other aspects of Colorado’s water quality management program such as the 303(d) list, the Non-point Source Program or the Total Maximum Daily Load (TMDL) Program, it is fitting that temporary modifications only be used where there are permitted discharges that would face unreasonable consequences in the absence of a temporary modification (e.g., a permit compliance schedule to meet a standard that is significantly uncertain).
Deleted:  The Temporary Modification on Alamosa segment 3b was deleted because there are no currently identified discharge permits on this segment.  
No action:  The Commission took no action on the Temporary Modification on Rio Grande segment 4, which is the receiving water for several CDPS permits.  The Temporary Modifications for standards on this segment will expire 12/31/2013.  The basin-wide review hearing is scheduled for June 2013 and it is anticipated that the remaining issues will be resolved in that hearing process.
PARTIES TO THE RULEMAKING HEARING
1.	City of Pueblo
2.	Seneca Coal Company
3.	Tri-State Generation and Transmission Association	
4.	Eagle River Water and Sanitation District
5.	Board of County Commissioners for the County of Gunnison, Colorado
6.	Colorado Parks and Wildlife
7.	High Country Citizens’ Alliance
8.	Bill Thiebaut, DA for 10th Judicial District and the Office of the DA for the 10th Judicial District
9.	City of Colorado Springs
10.	Town of Crested Butte
11.	Upper Gunnison River Water Conservancy District
12.	U.S. Energy Corp.
13.	Gunnison County Stockgrowers Association, Inc.
14.	Environmental Protection Agency
15.	Cherokee Metropolitan District
16.	Fountain Sanitation District
17.	Lower Fountain Metropolitan Sewage Disposal District
18.	Monument Sanitation District
19.	Palmer Lake Sanitation District
20.	Town of Monument
21.	Academy Water and Sanitation District
22.	Tri-Lakes Wastewater Treatment Facility
23.	Town of Palmer Lake
24.	Woodmoor Water and Sanitation District No. 1
25.	Upper Monument Creek Regional Wastewater Treatment Facility