Laserfiche WebLink
February 27, 1998 <br />WQCD Letter <br />Page 6 <br />C. Colowyo's September 30, 1997 "Comments on Draft CDPES Permit and Rationale" <br />We pointed out in January 12, 1998 letter that manual discharges from Colowyo's <br />ponds are not designed to meet any effluent limitations. Colowyo concurred with <br />this in their February 9, 1998 letter. No further comments from WQCD to DMG are <br />necessary. Thank you. <br />2. We pointed out what appeared to be a discrepancy with the language in Colowyo's <br />September 20, 1997 memo with regard to pit pumping. Colowyo has resolved our <br />concern with their February 9, 1998 letter. <br />No further comment from WQCD to DMG is necessary. Thank you. <br />4. Colowyo addressed our concerns. No further comment from WQCD to DMG is <br />necessary. Thank you. <br />5. Colowyo addressed our concerns. No further comment from WQCD to DMG is <br />necessary. Thank you. <br />6. This item was again a request by DMG to WQCD for consideration of requiring <br />every manual dischazge to be sampled to demonstrate compliance with applicable <br />effluent limitations. WQCD responded,. stating it would evaluate our request. As <br />mentioned eazlier, we would appreciate being informed of WQCD's decision. <br />7. Our comment in this item was an attempt to clazify the issue that nine of Colowyo's <br />ten ponds have both manual and automatic dewatering structures, but that discharges <br />through automatic spillways are the only discharges that have been modeled to meet <br />an effluent limit. No further comments from WQCD to DMG is necessary. Thank <br />you. <br />8. The issue as to whether the water quality exceedances reported by Colowyo were <br />violations of the CDPS general permit is a matter for WQCD to decide. No further <br />comment from WQCD to DMG is necessary. Thank you. <br />9. Since transmitting our January 9, 1998 letter, we have become aware of why <br />language in the draft WQCD permit reflecting both manual and automatic <br />dischazges. If the new individual permit is issued with only automatic dewatering <br />scenarios being considered, then language pertaining to the necessity of having to <br />manually restore a ponds capacity is unnecessary, as automatic dewatering structures <br />will automatically restore the pond's capacity. <br />10. We commented that we did not have a problem with Colowyo's proposal to revise <br />language describing the exemption from primary limits at Outfalls 002b, 004b, 007b, <br />008b, 009b and OIOb when those discharges contain pit pumpage or washwater. We <br />