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COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division <br />Rationale -Page 10, Permit No. CO-0000906 <br />. Table VI-7 - E uent Limitations at Out all 033A <br />30-Day Avg. 7=Day Avg. <br />Daily=Max. " Rattona`le <br />Parameter <br />Effective Until March 31.2010 <br />/ NA <br />Report a/ <br />Design Capacity <br /> <br />Report a <br />Flow, MGD <br />Report a/ Report a/ <br />NA <br />State Effluent Regulations <br />GODS, mg/1 <br />Report a/ Report a/ <br />NA <br />State Effluent Regulations <br />TSS, mg/1 <br />NA NA Report b/, c/ Water Quality Standards <br />pH, su <br />Ef)eetive Beeinnin Ayril 1, 2010 <br />Report a/ NA <br />Report a/ <br />Design Capacity <br />Flow, MGD <br />30 45 NA State Effluent Regulations <br />BOD5, mg11 <br />30 45 NA State Effluent Regulations <br />TSS, mg11 <br />NA NA 6.0 b/, 9.0 c/ State Effluent Regulations <br />pH, su <br />" In lieu of a limit, reporting is required <br />h/ These limits are instantaneous maximum limits <br />`i These limits are instantaneous minimum limits <br /> <br />Table VI-8 - Ground Water Monitoring Well 05" (Effective beginning 01/01/11 <br />Rationale <br />Parameter 30 Day Avg. Daily Max <br />Static Water Elevation in Well, ft above sea level Report ab/ Report Monitoring Well Guidance <br />Specific Conductance, dS/m Report ab/ NA Monitoring Well Guidance <br />° Report ab/ NA Monitoring Well Guidance <br />C <br />Temperature, <br />• NA Report, ac%ad/ Groundwater Protection <br />pH, s.u. (minimum-maximum) Report e/ Report b/ Groundwater Protection <br />Total Coliform, no1100 ml <br />Dissolved Nitrate plus Nitrite as N, mg11 Report b/ Report b/ Groundwater Protection <br />Dissolved Chloride, mg11 Report b/ NA Groundwater Protection <br />Dissolved Sulfate, mg/l Report b/ NA Groundwater Protection <br />Total Dissolved Solids, mg11 Report b/ Report b/ Groundwater Protection <br />Dissolved Arsenic, ug/1 Report b/ Report b/ Groundwater Protection <br />Dissolved Cadmium, ug/l Report b/ Report b/ Groundwater Protection <br />Dissolved Chromium (combined tri +3 and hex +6 forms), ug/1 Report b/ Report b/ Groundwater Protection <br />Dissolved Copper, ug/l Report b/ Report b/ Groundwater Protection <br />Dissolved Iron, ug/1 Report b/ Report b/ Groundwater Protection <br />Dissolved Lead, ug/1 Report b/ Report b/ Groundwater Protection <br />Dissolved Manganese, ug/1 Report b/ Report b/ Groundwater Protection <br />Dissolved Mercury, ug/1 Report b/ Report b/ Groundwater Protection <br />Dissolved Nickel, µg/l Report b/ Report b/ Groundwater Protection <br />Dissolved Selenium, ug/I Report b/ Report b/ Groundwater Protection <br />Dissolved Silver, ug/l Report b/ Report b/ Groundwater Protection <br />Dissolved Zinc, ug/1 Report b/ Report b/ Groundwater Protection <br />" Field Sample Analysis (See footnote in the permit) <br />ni In lieu of a limit, reporting is required <br />These values must be reported as instantaneous minim um values <br />These values must be reported as instantaneous maximum values <br />40 ei Multiple-Tube Fermentation Technique is used for analysis (see footnote in the permit)