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t <br /> according to the frequencies below. Each of these sites will be monitored for the following <br /> parameters: dissolved zinc, dissolved iron, dissolved aluminum, dissolved manganese, <br /> dissolved cadmium, dissolved copper, sulfate, hardness and pH. Analysis of these parameters <br /> will be conducted using methods capable of detecting concentrations at or below the following: <br /> dissolved zinc: 10 ug/l; dissolved iron: 50 ug/l; dissolved aluminum: 50 ug/l; dissolved <br /> manganese: 50 ug/l; dissolved cadmium: 1.0 ug/1; dissolved copper: 5 ug/l; sulfate: 5 mg/1. <br /> The monitoring requirements of this Consent Decree are separate and in addition to any <br /> monitoring requirements of SGC's CDPS permits and MLR permit. <br /> a. SGC Permitted Area <br /> (i). American Tunnel Influent to Wastewater Treatment Facility - <br /> Sampled monthly until no flow exists or permits are terminated. Weekly flow measurements <br /> will be taken until no flow exists or permits are terminated. <br /> (ii). Cement Creek Influent to Wastewater Treatment Facility - <br /> Sampled monthly while Cement Creek is diverted. Weekly flow measurements will be taken <br /> until the diversion stops. <br /> (iii). American Tunnel Treatment Facility Effluent (CDPS Permit No. <br /> CO-0027529 Outfall 004A) - Sampled monthly. <br /> (iv). Cement Creek below its confluence with the American Tunnel <br /> effluent (known as water quality monitoring station C-20) - Sampled monthly until Cement <br /> Creek diversion and treatment of American Tunnel waters ceases. <br /> 38911-3 512196 16 <br />