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Pretreatment Industrial Users <br />General Permit Conditions Page <br />3of14 <br />12. The permittee shall take all reasonable steps to minimize or correct any adverse impact <br />to the City of Stockton's wastewater collection system, Regional Wastewater Control <br />Facility or the environment resulting from noncompliance with this permit, including such <br />accelerated or additional monitoring as necessary to determine the nature of the <br />noncomplying discharge. <br />13. If other constituents of concern are identified as being present or potentially present in <br />wastewater discharged to the sanitary sewer under this permit, then this permit may be <br />revised and a new monitoring and reporting program issued to include monitoring <br />requirements for those constituents. This permit may be reopened and effluent limits may <br />be established for those constituents. If this permit is reopened and new and/or more <br />stringent effluent limits imposed, a phase-in period may be allowed for existing discharges, <br />if needed, to allow for adjustment of treatment processes. This will be determined on a <br />case-by-case basis. <br />14. Self -Monitoring Sampling Requirements: <br />a. Permittee is required to self -monitor wastewater generated on site for pollutants <br />specified by the City of Stockton in this permit. <br />b. Permittee shall monitor the final effluent wastewater discharge flow to the sanitary <br />sewer on a continuous basis using a digital totalizing meter and separate recorder <br />with 24-hour or 7 -day circular char#, unless otherwise specified in this permit. <br />C. Permittee shall monitor the final effluent wastewater discharge pH to the sanitary <br />sewer on a continuous basis using a digital meter with 2 -point calibration capability <br />and separate recorder with 24-hour or 7 -day circular chart, unless otherwise <br />specified in this permit. An audible alarm and automatic shut-off system for high <br />and low pH occurrences is required. <br />d. Permittee shall monitor the final effluent wastewater discharge temperature to the <br />sanitary sewer on a continuous basis using a digital meter and separate recorder <br />with 24-hour or 7 -day circular chart, if temperature monitoring is specified in this <br />permit. <br />e. Permittee shall monitor the final effluent wastewater lower explosive limit (LEL) to <br />the sanitary sewer on a continuous basis using a digital meter and separate <br />recorder with 24-hour or 7 -day circular chart, if LEL monitoring is specified in this <br />permit. <br />Permittee shall monitor the final effluent wastewater discharge to the sanitary <br />sewer on a continuous basis using a refrigerated, flow -based, 24-hour composite <br />sampler, unless otherwise specified in this permit. <br />g. Sampling procedures and handling must be approved by the City of Stockton and <br />- the laboratory utilized must be certified by the California State Water Resources <br />