2011-06-17_PERMIT FILE - C1981018

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PART 1 Page No. 17 Permit No.: CO- 0038024 Nothing herein contained shall be construed as allowing any discharge to waters of the State other. than through the discharge • points specifically authorized in this permit. Nothing herein contained shall be construed as excusing any liability the permittee might have, civil or criminal, for any spill. The submittal of a Spill Prevention Control and Countermeasure Plan (SPCC Plan) as required by 40 CFR Part 112 may satisfy all or part of this requirement. Should additional materials exist on site which are not addressed in the SPCC Plan, addressing those materials as per the above is required. 1 / If there is no such material present at the site, this shall be indicated in writing and submitted to the Division for review. 2/ If there is material present but the permittee feels there is not a reasonable probability of a spill impacting waters of the State, this shall be documented in writing and submitted to the Division for review. This documentation shall include; 1) distance to nearest surface waters, and; 2) a detailed description of any structure which prohibits the release of material onto the ground or into a conveyance system. 2. Stormwater Requirements Stormwater — Stormwater from active or mining operations that has been contaminated by contact with any overburden, raw material, intermediate products, finished products, byproducts or waste products located on the site of such operations is required to be covered by a Colorado Discharge Permit System (CDPS) permit in order to be discharged to State waters. This coverage must be obtained under a CDPS Stormwater Discharge Permit. Stormwater permitting issues for this facility will be handled separately by the Division's Stormwater Group. E. GENERAL MONITORING, SAMPLING AND REPORTING REQUIREMENTS 1. Routine Reporting of Data iReporting of the data gathered in compliance with Part I.B.1 shall be on a quarterly basis. Reporting of all data gathered shall comply with the requirements of Part I.E. (General Requirements). Monitoring results shall be summarized for each calendar month and reported on Division approved discharge monitoring report (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 the following month (for example, the DMR for the first calendar quarter must be received by the Division by April 28th). If no discharge occurs during the reporting period; "No Discharge" shall be reported. The DMR forms consist of four pages - the top "original" copy, and three attached no- carbon - required copies. After the DMR form has been filled out and signed, the four copies must be separated and distributed as follows: The first original signed copy of each discharge monitoring report (DMR) shall be submitted to the Division at the following address: Colorado Department of Public Health and Environment Water Quality Control Division WQCD -P -B2 4300 Cherry Creek Drive South Denver, Colorado 80246 -1530 Additional copies are for the permittee records. The Discharge Monitoring Report forms shall be filled out accurately and completely in accordance with requirements of.this permit and the instructions on the forms. They shall be signed by an authorized person as identified in Part I.E.6: - -- Calculations for all limitations which require the averaging of measurements shall utilize an arithmetic mean unless otherwise specified by the Division in the permit • 2. Representative Sampling Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored discharge. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified, before