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2018 ANNUAL GROUNDWATER MONITORING REPORT FORMER KEARNEY—KPF FACILITY-STOCKTON,CALIFORNIA <br /> period. Monthly effluent samples were not collected between January 3, 2018, and April 4, 2018, because no <br /> groundwater was treated and discharged to the infiltration basin. <br /> The treatment system was restarted on April 4, 2018. On April 19, 2018, a sulfuric acid leak was encountered at the <br /> sulfuric acid port on the effluent line.The system was shut down and the sulfuric acid line port was repaired.After the <br /> line was repaired,the system was restarted and the leak ceased.The sulfuric acid was treated by applying a mixture <br /> of 32 pounds of baking soda and water to the saturated ground. <br /> The treatment system was temporarily shut down on May 22, 2018, to replace lamps in the ultraviolet reactors. <br /> The system was restarted on May 22, 2018.The treatment system then ran continuously until the second planned <br /> shutdown period, which began on July 6, 2018. The treatment system was shut down from July 6, 2018, until <br /> October 4, 2018. <br /> The treatment system was restarted on October 4, 2018, and ran continuously through Q4 2018. Table 2.2-1 <br /> summarizes the downtime of the treatment system in 2018. <br /> Table 2.2-1. Treatment System Downtime in 2018 <br /> Date Status Notes <br /> 1/3/18 Shut down System was shut down for planned Q1 shutdown period <br /> 4/4/18 Restarted System was restarted for planned Q2 runtime <br /> 4/19/18 Shut down and Sulfuric acid line re-secured to the effluent line <br /> resta rted <br /> 5/22/18 Shut down and Replaced lamps in ultraviolet reactors <br /> resta rted <br /> 7/6/2018 Shut down System was shut down for planned Q3 shutdown period <br /> 10/4/2018 Restarted System was restarted for planned Q4 runtime <br /> The annual inspection records are included in Appendix A,Sampling and Inspection Forms, 2018. <br /> D U D E K 10886-1 <br /> 6 March 2019 <br />