Laserfiche WebLink
<br />.~ <br />COLOWYO COAL COMPANY L. P. <br />5737 Stale Highway 13 <br />Meeker, Colorado B16at <br />(970)824-1531 <br />{970 8_24-1598 FAX <br />WOL NNECOTT.COM <br />Kimberley A. Wolf <br />Environmental Engineer <br />October 19, 1998 <br />..:. .. . <br />~ ~ /~ Kennecott <br />/~ .Energy _, <br />Coloaryo Loaf ConrpanyL.P. '~ <br />Ms. Carla Lenkey <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division <br />4300 Cherry Creek Drive South <br />Denver, CO. 80222-1530 <br />ItE: COLOWYO COAT., COItiTPANY L.P. (COLOWYO); PEI2ivIIT NO. COG850017 <br />THIRD QUARTER 1998 DIVTR <br />Dear Ms. Lenkey, <br />Colowyo is submitting the Third Quarter 1998 Discharge Monitoring Report to the Colorado <br />Department of Public Health and Environment, Water Quality Control Division. Dischazges <br />occurred at Outfalls OOIA, 002A, 003A, 004A, OOSA, 007A, OO8A, OlOA. The self-monitoring <br />data provided on the enclosed DMRs indicate levels above specifc discharge permit conditions <br />as indicated and discussed in this letter. <br />Outfall Reported Permit <br />Number Parameter Da a Results Conditions <br /> ~~ <br />002A pH, s.u. 7/27/98 (max) 6.5 min - 9.0 max <br />OlOA TSS, mg/1 7/27/98 61 (30 day avg) 35 (30 day avg} <br />OO8A TSS, mg/1 8/11198 80 (30 day avg) 35 (30 day avg) <br /> 80 (daily max) 70 (daily max) <br />OOSA pH, s.u. 8/19/98 10.0 (max) 6.5 min - 9.0 max <br /> pH, s.u. 8/2/98 9.4 (min) 6.5 min - 9.0 max <br />The sediment control pond associated with outfal] 002A has received some inflow since the <br />beginning of the quarter. Outfall 002A discharged on July 27, 1998 and had a laboratory pH of <br />9.2 and a field pH of 9.0. The last laboratory analysis of the pH occurred on June 18 and was 8.6 <br />while the field pH measured 9.0. The elevated pH can be attributed to two factors, none of which <br />