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<br />''l <br />COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale - Page 6. Permit No. CO-0024562. <br />2. State Sampling: State sampling results for Pike's Peak Mining <br />Company are summarized in Table V-2 for the period of June 1989 <br />through October 1991, <br />Table V-2 -- Summary of State Sampling Results <br />Parameter <br />Flow, MGD <br />TSS, mg/1 <br />pH, s.u. <br />Oil and Grease, mg/1 <br />Total Recoverable <br />Silver, mg/1 <br />Total Recoverable <br />Zinc, mg/1 <br />Total Recoverable <br />Cadmium, mg/1 <br />Total Recoverable <br />Lead, mg/1 <br />Total Recoverable <br />Copper, mg/1. <br />Total Mercury, mg/1 <br />Value <br />Mean Range No. of Samples <br />1.98 1.76-2.2 2 <br />all k10* NA 2 <br />7.94 7.89-8.0 2 <br />all k10 NA 2 <br />0.0002 NA 1 <br />0.014 0.010-0.018 2 <br />all k0.0003 NA 2 <br />all k0.0005 NA 2 <br />all k0.0005 NA 2 <br />all k0.0002 NA 2 <br />* k denotes less than <br />** These values represent violations of permit limits <br />B. Compliance with Terms and Conditions of Previous Permit <br />Inspections of the facility by Division representatives on June 12, <br />1989, September 12, 1990 and August 28, 1991 showed the following <br />minor compliance problems: <br />The permittee does not yet have a Class C operator. Their current <br />operator intends to pursue Class C Certification, but is now only <br />certified as a Class D operator. Problems with sediment buildup on <br />the Parshall Flume have been corrected as of the most recent <br />inspection. The inspection in 1990 raised the possibility that the <br />Roosevelt Tunnel may also have drainage that would require a discharge <br />permit. No discharge from the Roosevelt Tunnel was noted at the most <br />recent inspection and this permit requires the permittee to begin <br />visual inspections of the Roosevelt Tunnel in the event of new <br />underground activity in the Carlton Tunnel to assure that there is no <br />new or constant flow from the Roosevelt Tunnel as a result of resumed <br />mining activity. <br />