HYDRO31106

• Permit No: C1981019
• IBM Index Class Name: Hydrology
• Doc Date: 9/8/1998
• Doc Name: REQUEST FOR ALTERNATE LIMITS DUE TO SNOWMELT
• From: DMG
• To: WQCD
• Permit Index Doc Type: DMR’s
• Media Type: D
• Archive: No

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STATE iii iiiiiiiiniiiiii
999

OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Dcparimenl of Natural Rewurces
1311 Sherman 51., Room 215 r

Denver, Colorado 80'03 I
~~~

Phone: [phone] I
FAX [phone]?-8101,
f~EPARTMEIVT OF
NATURAL
September 8, 1998 RESOURCES
Ms Cazla Lenke c; e°~~ `
y
Colorado Department of public Health and Environment Ia~,e> s L~~nne~d
Water Quality control division e.ea~~~,e o~~e~~~,~

4300 Cherry Creek Drive South michael B. Lo~ti
D~~~s~o„ oveUnr
Denver, CO 80222-1530
Re: Request for Altemate Limits Due to Snowmelt
CDPS Permit No.: COG-850017; Outfall 007A
Moffat County
References:
a) Colowyo Coal Company L.P. letter of April 20, 1998, Re: Colorado Wastewater
Discharge Permit System Number COG-850017; Discharge Monitoring Report First
Quarter; 1998, Wolf to Lenkey
b) Colowyo Coal Company L.P. letter of July 14, 1998, Re: Request for Alternate Limits
Due to Snowmelt, Additional Information CDPS Permit COG-850017; Moffat County,
Kiger to Lenkey
c) Colorado Department of Public Health and Environment letter of August 19, 1998, Re:
same as [his letter, Lenkey to Kiger
d) Telephone calls between Kubic and Lenkey [Colorado Department of Public Health and
Environment (CDPHE)] and Gorham and Walker [Colorado Division of Minerals and
Geology(CDMG)], September 8, 1998, where by CDMG was asked to provide
information on water levels in Prospect Pond (NPDES discharge point 007) on March 23,
1998, and an explanation of the SEDCAD model of the pond
Dear Ms. Lenkey:
With regard to reference d), the Division did not inspect the pond on March 23, 1998. The pond
was inspected by the Division on March 17, 1998 (a routine inspection). On that date, the
inspection record is that Prospect Pond was inspected, along with all other ponds at the mine site;
and that of those, Gulch A Pond (NPDES discharge point 004) had "muddy inflow from snow
melt, and clear but slightly stained dischazge". No direct or specific information on water levels
in, or dischazges from, Prospect Pond (NPDES 007) were recorded.