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COLORADO DEPARTMENT OF /IF,ALTH, Water Quality Control Division Rationale -Page 10, Permit 1Vo. CO-0034142 Table V-4 - St(/-Monitoring Results (Otr~all 024) ;`.;i lY Smnples.,;:..;:::.: Repoifal: Previous ::::: : ::.:.:::::Nq ;of :;.:::. . :.::..::>::oc:ltepoiting::. Condntiiofidns: : Peiitiit::.::':!.::,:'::'.:.+.Z~»rit".:;-. ': P.. Mods . ''.:.;' :.:...::. . ... Parttmeter ::.:....:. ::.: -:::::.....::::::::::.:f......:'::,.::::::.:::.:.:':t16g/iNiiiYMax Limit;:.::.:.Lrxcucsions:..:. Flow, MGD S2 0.234/0.08/0.48 3.225 nr 0 Oil & Grease, mg/l S2 0.0/0.0/0.0 10 at 0 TSS, mg/1 24 7.3/2/16 35/70 ar 0 pH, s. u. 52 8.4/7.7/9.0 6.0-9. T'r 0 TDS, mg/l 6 1234/1098/1340 Report ar NA Iron (7RJ, mg/! 13 0.15/0.04/0.37 1.0/2.Ot't 0 Zinc (7R), mg/1 24 0.029/0.01/0.11 0.23/0.46 0 a~ t't Limit reflects 30-day average and the combined flow from outfa[ls 003, 022, and 024 shall not exceed 2,240 gpm (3.225 MGDJ. Average, minimum, and maximum flows were determined from the 30-day average flows reported. The permiaee is alto required to report instaraaneous rnaximtons. Highest value reported was 0.481 MGD. nt Limit is an instauaneous maximum No analyser were run since no visual oil sheen wns observed. at Limit reflecu 30~day average/7-day average. Average, minimum, and maximum concentrations were determined from reported 30-day and 7-dgV average concentrations. t't Limit is a minimum/maxinuan. Average, minimum, and maximum concentrations were determined from reported minimum and maximum vr:lues. a' Permiuee required to report 90~ay average 7DS concentration. Average, minrmum, and maximum concentrations were determined from the reported 90-day outrage concentrations. t6j Limit reflects 30day avensge/daily maximum Average, minimum, and maximum concentrations were determined from the reported 30day average and daily maximum concentrations. 2. Stare Samoling -There are no state sampling results available for this facility. B. Compliance With Terms and Conditions of Previous Permit 1. Effluent Limitations - As shown in Table V-3 for Outfa/l 022, the permittee acceded the 30day average and 7day average TSS limitation once during the past year. As indicated in the permit file, no enforcement actions were taken during the period covered by the previous permit. 2. Other Permit Renuirements -The permiaee has been in compliance with all other terms and conditions of the permit.