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r PQUIN 2 'R ar t THOMAS M.GAU P.O.BOX 1810-1810 E.HAZELTON AVENUE DIRECTOR S?OCKTON,CALIFORNIA 95201 (209)468-3000 FAX(209)468-2999 Q�/FA�a P www.sjgov.org/pubworks FRITZ BUCHMAN CEj\jE® DEPUTY DIRECTOR w,�,g for YOU RE MICHAEL SELLING +�+�+++ DEPUTY DIRECTOR IVO i ROGER JANES BUSINESS ADMINISTRATOR 840RONMEN7ALHEL October 29, 2012 ptFIWXISERVICE Ms Wendy S. Wyles, Supervisor Compliance and Enforcement Unit California Regional Water Quality Control Board 11020 Sun Center Drive, #200 Rancho Cordova, California 95670 SUBJECT: WORK PLAN IN ACCORDANCE WITH NOTICE OF VIOLATION ISSUED SEPTEMBER 26, 2012: CORRAL HOLLOW SANITARY LANDFILL Dear Ms. Wyles: Thank you for your time, and that of other Water Board staff members, at our meeting of October 17, 2012. 1 feel this was a productive meeting, allowing us to discuss the Notice of Violation (NOV) issued September 26, 2012 in light of the results of our Evaluation Monitoring Plan, and to increase the group's understanding of the situation at the Corral Hollow Sanitary Landfill. Please accept this letter and attachments as the Work Plan required by the NOV. This Work Plan incorporates the following activities: • Conducting a water supply well search within a one-mile radius of the site (Figure 1) • Installing two additional soil gas wells near the landfill property boundary (Figure 2) This schedule (Figure 3) shows the installation of the wells as soon as conditions permit in the spring. An important point regarding the schedule is that we must rely on other parties to complete some of the important tasks, such as review of the design of the LFG migration monitoring wells. For this reason, the schedule is tentative, but allows the planning of the activities involved. This letter also confirms our agreement that a fourth permanent off-site groundwater monitoring well is postponed indefinitely. This decision is based on: • The extent of the groundwater impact was sufficiently characterized by the data collected from the three off-site wells now in place. • The difficulty in obtaining permission from the owner of the property in which we would install the fourth well. • General concurrence between the County and Water Board staff that information obtained from that well would not change the fundamental approach to corrective action. I will continue to attempt to contact the owner of that property, and will send documentation of my attempts to your Unit. If we obtain permission to install that well, then the driller contract for the installation of the LFG migration monitoring wells can be used for this groundwater monitoring well.