2009-03-06_PERMIT FILE - C1981012A ‎(6)‎

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 3/6/2009
• Section_Exhibit Name: Exhibit 22 NPDES Permit
• Media Type: D
• Archive: Yes

COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division
Rationale - Page 26, Permit No. CO-0000906
J. Policy Concerning Escherichia coli versus Fecal Coli orm Colorado Department of Public Health and Environment, Water
• Control Division, effective July 20, 2005
Quality --A-n) ruidance. Colorado
K. Antide radation Si ni icance Determination or ivetiv ur 1r-1 µ??.•
Department of Public Health and Environment, Water Quality Control Division, effective December 20
L. Memorandum Re: First U date to Antide radation7 GuidanLe ersion 1.0 Colorado Department of Public Health and
Environment, Water Quality Control Division, effective Apri1 23, 2002.
_. L 1
M. Determination o the Requirement to Include Water uan 3tannuru?-mound Environment,
Procedural Guidance Colorado Department of Public Health and , Water Quality Control Division,
effective December 2002.
N. The Colorado Mixin Zone Implementation Guidance Colorado Department of Public Health and Environment, Water
Quality Control Division, effective April 2002.
0. Water-Quality-Limited Segments Re uir•in Tot lM aximu mmissio D efaily fective Ap 'l ul ation No. 93 Colorado Department of Public
Health and Environment, Water Quality Control 30, 008.
P. Colorado's Monitoring and Evaluation List Re ulation No. 94 Colorado Department of'Public Health and Environment,
Water Quality Control Commission, effective April 30, 2008.
Q. Water and Wastewater Facility O erators Certification Requirements Regulation No. 100 Colorado Department of Public
Health and Environment, Water Quality Control Division, effective April 30, 2006.
nd Environment, Water Permits Quakty Control Protection of Crops, ?0 2008.olorado
R. Implementing Narrative Standards
• Department of Public Health a
S. Code of Federal Regulations (40 CFR Part 434, Coal Mining Point Source Category), Office of the Federal egister,
Government Printing Office, last updated January 23, 2002.
VIII. PUBLIC NOTICE COMMENTS
Written comments were received from the permittee during the public notice period. Copies of these comments will be made
available upon written request. Topical summaries of the comments and the response of the Division are provided below.
Comment 1: The Company offices have moved (new address given).
Response 1: This has been updated.
Comment 2: New Elk Coal Company (NECC) requests a quarterly reporting cycle for Ponds 004, 007 and 008 as frequency of
discharge does not warrant monthly reporting. Pond 004 has not discharged since at least 1991, and 007 and 008 discharge
only during major precipitation events.
Response 2: The DMR submittal has been changed from monthly to quarterly.
Comment 3: Mine wetter treatment Pond 1: Initially, water will be pumped from the mine at a rate of 2000 gpm, and if
necessary, additional pumps will be used to increase flows up to 4000 gpm. The renewal application projected a maximum
discharge of 6000 gpm, which will not be implemented.
Response 3: Note that in additional conversation with the permittee regarding the flow rates and the Na limit, it was determined
that the facility will only discharge at a maximum rate of 2500 gpm, as the facility will be unable to meet the Na limit at the
40 higher flow rate. The permittee has submitted an official request for the 2500 gprn maximum limitation and it can be found
attached to the public notice comments in the permit file.
Nhave een ote t that the updated only perm lima mgd (250 'ons that were)affas the ected duel dichanscharge rate. This has changed the
in design flow were EC and Na,
The permit documents
WQBELs in the e W Q