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~` <br />~ P¢rma Mining Corporai~-i <br />A Perma R¢sourc¢s Company <br />I I' I I I I" I I' I II III . <br />January 28, 1983 <br />Colorado Department of Health <br />Water Quality Control Division <br />Monitoring and Enforcement Section <br />4210 East 11th Avenue <br />Denver, CO 80220 <br />Re: Annual Report NPDES CO-0037214 <br />To Whom It May Concern: <br />Discharge from sediment retention 005 occurred on September <br />2, 1982. Discharge was required due to numerous smaller <br />storm events. A pump was used to discharge the water in <br />order to maintain the 10 year-24 hour storm event retention <br />volume. It did not occur as a result of a 10 year-24 hour <br />storm. <br />The results of sampling are described on the attachment. All <br />samples were collected as grab samples from the surface of <br />the pond at approximately 3:00 P.M. on the date specified <br />above. The pH of the discharge was measured at 7.8 in the <br />field using a colormetric wheel. <br />If any additional information is required, please don't <br />hesitate to contact us. <br />/~Gl~6G( ~!!i~ <br />Rade H. Orell <br />Environmental Supervisor <br />Sincerely, <br />RHO/sm <br />Attachment <br />cc: U.S. Environmental Protection Agency <br />105 East Kiowa. Sult¢ 200. P.O. Box 2679. Colorado Springs. Colorado 80901-2679 (303) 475-7005 <br />Tel¢x 45-0440. Answer Back, Perma Res Enal <br />