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Summary of Findings and Corrective Actions Red Canyon Quarry COG500809 Corrective Action CDPS permit COG500809 was issued for storm water discharges only. The discharge that occurred in late Apri] and early May 1999 was composed of stormwater which had been Rocky Mountain Materials and Asphalt must ensure that any discharge that occurs from its facility is composed of storm water only. in contact with the quarry area, and was therefore process water. This discharge occurred in violation of the CDPS permit. The facility did not notify the Colorado Department of Public Health and Environment or EPA of the discharge of storm water and process water that occurred in late April and early May 1999. This failure to notify is a violation of CDPS permit COG500809. Rocky Mountain Materials and Asphalt must give CDPHE a 24-hour verbal notification of any violation of its permit, as well as a five (5) day written notification as described in Part II.A.3 of permit COG500809. The Storm Water Management Plan (SWMP) required by Part I.C.2 of permit COG500809 indicates that any discharges which occur from the sediment basin will be sampled or evaluated for non-storm water components. Once the permittee develops its SWMP, it becomes part of the enforceable requirements of the storm water permit. Failure to meet the requirements of the SWMP becomes a violation of the permit. No sampling or evaluation records were available for the discharge that occurred in late April and early May 1999. The SWMP has not been updated since it was developed in 1994. Changes have occurred at this site including increased area of impact from mining operations and changes to BMPs within the quarry. As stated in Part I.C.4(b) of permit COG500309, the SWMP should be periodically updated to reflect changes in the operations at the quarry. Rocky Mountain Materials and Asphalt must update the SWMP and submit the updated SWMP to both CDPHE and EPA at the addresses listed in the inspection letter. Section LC.9 of CDPS permit COG500809 requires an employee education program relating to storm water management. The SWMP does not address any educational Rocky Mountain Materials and Asphalt should develop an education program and outline the program in the updated SWMP.