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WASTE DISCHARGE REQUIREMENTS GENERAL ORDER NO. R5-2015-0012 <br />12 <br />IN-SITU GROUNDWATER REMEDIATION <br />AND DISCHARGE OF TREATED GROUNDWATER TO LAND <br />Discharger is responsible for, in excess of the values found in Table 1. For <br />constituents that are not the responsibility of the Discharger, the concentrations shall <br />not exceed background values as established under Monitoriing and Reporting <br />Program R5-2015-0012. <br />Table 1: Effluent Limits for groundwater discharged to land (above or below ground <br />surface: <br />Constituent Effluent <br />Limit <br />trichloroethene 0.5 pg/L <br />tetrachlorethene 0.5 pg/L <br />vinyl chloride 0.5 pg/L <br />cis 1,2-dichlorethene 0.5 pg/L <br />1,2-dichlorethene 0.5 pg/L <br />1,2-dichloroethane 0.4 pg/L <br />1,1-dichloroethene 0.5 pg/L <br />1,1-dichloroethane 0.5 pg/L <br />1,2,3-trichloropropane 0.5pg/L <br />0.5 pg/L 1,2-dichloropropane <br />1-chloropropane 0.5 pg/L <br />propene 28 pg/L <br />perchlorate 6 ug/L <br />carbon tetrachloride 0.5 pg/L <br />cyanide 10 pg/L <br />dieldrin 0.0022 pg/L <br />5. In the case of application of extracted groundwater to land as part of a <br />phytoremediation project, then the discharge shall not contain concentrations of <br />pollutants that are not targeted for phytoremediation in excess of those in Table 1. <br />For pollutants not found in Table 1, the concentrations shall not exceed background <br />concentrations as established under Monitoring and Reporting Program R5-2015- <br />0012. In addition, if the phytoremediation project is for the remediation of nitrogen, <br />then the discharge shall not be excess of the value detemined to be needed for plant <br />growth as specified in the Notice of App licablity. <br />F. GROUNDWATER LIMITATIONS <br />The discharge shall not cause the pH of the groundwater at the compliance points, <br />downgradient and outside the treatment and transition zones, to shift outside the <br />range of 6.5 to 8.5. <br />The release, injection, discharge, or addition of amendments from a remediation <br />system shall not cause the groundwater at the compliance wells listed in Table 1 of <br />the Monitoring and Reporting Program, which is attached to the Notice of <br />Applicability, and any revisions thereto, to contain concentrations of chemical <br />constituents, including the amendments and by-products of the in-situ treament <br />process, in amounts that exceed the Water Quality Objectives listed in Finding No. <br />18.