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will be followed up by phone with property owners to discuss the project and <br /> arrange a field visit. Upon the land owner's permission, LSCE will conduct a field <br /> inspection of wells to determine if the well is suitable for monitoring, document <br /> details concerning well location, construction, and accessibility. Following 1 <br /> sampling activities, results will be compiled and analyzed; and a letter containing <br /> individual results will be provided to land owners. Pending identification of <br /> j suitably constructed wells, LSCE may explore permission for use of an existing well <br /> for aquifer testing purposes. LSCE will prepare a map of the wells for inclusion in <br /> off-site monitoring network. Tabulated well construction data and water quality <br /> data. The analyses and results will be incorporated into the Existing Setting. <br /> Task 1 b Aquifer Testing(Optional) <br /> • LSCE .will, determine the nature of the underlying., aquifer(s), i.e., confined, <br /> giunconfined, "leaky confined;--an&their characteristics such-_as'tfansmissivity' <br /> storativity, and the nature of leakage. -,A select network-of pumped well and ' <br /> monitoring wells (on-site and possibly off-s.ite)ywill-be identified.. LSCE will install j <br /> electronic pressure transducers; conduct pretest; conduct aquifer test; analyze test I <br /> results within this network. Aquifer test results will' be used in Task 5 to assess <br /> *,,potential project impacts' <br /> Fit • Note: Costs estimated for this task assume that one aquifer test will be conducted i <br /> and a) a pump service will be called upon to install a test pump, b) a diesel <br /> generator will be rented to provide power, c) diesel will be delivered to the site <br /> -- regularly, d) extracted water will be disposed of on the quarry property, and e) the <br /> test duration is five days. The actual test duration will depend on the response <br /> observed in both the pumped well and monitoring well(s) during the test. <br /> F, i <br /> Task 1 c New Wel I Construction (If Necessary) <br /> I <br /> • This Task is included in the scope of work under the assumption that a) currently no <br /> -T suitable on-site extraction well(s) exist, and b) suitable off-site extraction well(s) are i <br /> either not identified, or access to such wells is not granted by well owners. 1 <br /> However, well construction cost is not included in the present cost estimate as it <br /> will be determined via a bid solicitation process at a later time. Since the project <br /> proposes groundwater extraction through wells on-site, LSCE would work with the <br /> project applicant constructing wells on the project site to ensure that the well <br /> j placement dovetails with the applicant's planned well locations for project <br /> operations. <br /> `� LSCE will install as necessary the facilities (likely one test well and one monitoring <br /> well) to conduct one or more aquifer tests. Facilities installed for purposes of <br /> determining aquifer characteristics and evaluating potential project impacts could <br /> F also be incorporated into the network of monitoring wells (or used as an on-site <br /> water supply well in the case of the test well). LSCE will oversee well design; bid <br /> solicitation; drilling oversight; collection and description .of drill cuttings; well <br /> { ; development; retrieval of baseline water quality samples; preparation of lithologic <br /> ' logs and as-built well drawings. Lithologic logs and as-built drawings will be <br /> prepared and incorporated into the Existing Setting. <br /> San Joa uin Counl Community Development Department LAMM <br /> ' <br /> 6 <br />