HYDRO27537

• Permit No: C1980001
• IBM Index Class Name: Hydrology
• Doc Name: AUTHORIZATION TO DISCHARGE UNDER COLORADO DISCHARGE PERMIT SYSTEM
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

PART 1
Permit No. CO-0032638
Page No. 19
D. SPECIAL REQUIREMENTS
2. Stormwater Requirements (continued)
2) Request for Termination
When a site has been reclaimed in accordance with the CDMG requirements and the site has been released from
State reclamation requirements, or the above Termination Criteria have been met, the permittee may request
termination of stormwater coverage under this permit. The Division will consider termination of stormwater
coverage when:
a) the perminee has submitted a completed Inactivation Form as provided by the Division which summarizes
the work accomplished;
b) In the case of mine-waste remediation projects, the permittee has submitted photographic documentation of
the post remediation conditions at the mine site;
c) All stormwa[er discharges to state waters associated with mining activities have ceased and the permittee has
demonstrated to the Division the termination criteria have been met or the CDMG performance bond has
been released;
d) The Division finds that the petmittee has shown reasonable grounds consistent with the Federal and State
statutes and regulations for such termination; and
e) Fee requirements of Section 6.16.0 of State Discharge Permit System Regulations have been met.
Continued coverage may be required after reclamation or remediation has been completed if the Division has
shown or has reason to suspect that the stormwater discharge may contribute to a violation of a water quality
standard.
i. Stormwater Definitions
I . Best management practices (BMPs): schedules of activities, prohibitions of practices, maintenance
procedures, and other management practices to prevent or reduce the pollution of waters of the State. BMPs
also include treatment, operating procedures, and practices [o control site runoff, spillage or leaks, waste
disposal, or drainage from material storage. BMPs include structural and nonswcmral controls.
2. Operator: the individual who has day-to-day supervision and control of activities occurring at [he mine site.
3. Remediation, as used in this permit, means actions taken to reduce or eliminate the overall adverse
environmental impact associated with a pollutant source. The term includes actions such as re-routing of surface
flows, re-location or a pollutant source, the addition of pollutant neutralizing or immobilizing substances,
capping and re-vegetation.
4. Significant Materials include but are not limited [o: raw materials; fuels; materials such as metallic products;
hazardous substances designated under section 101(14) of CERCLA; fertilizers; pesticides; and waste products
such as ashes, slag and sludge that have the potential to be released with stormwater discharge.
E. GENERAL MONITORING, SAMPLING AND REPORTING REQUIREMENTS
I. Routine Retwrtine of Data
Reporting of the data gathered in compliance with Pan I.B.I shall be on a quarterly basis. Reporting of all data
gathered shall comply with the requirements of Pan I.E. (General Requirements). Monitoring results shall be
summarized for each calendar quaver and reported on Division approved discharge monitoring repon (DMR) forms
(EPA form 3320-1). One form shall be mailed to the Water Quality Control Division, as indicated below, so that
the DMR is received no later than the 28th day of [he month following the end of the quaver (for example, the
DMR for the first calendar quarter must be received by the Division by April 28th). If no discharge occurs during
the reponing period, "No Discharge" shall be reported.