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DocuSign Envelope ID: AEC27949-971E-40CF-9AG jD95FB29AA6 TSS Agreement No. 0016 Page 6 of 13 1— CEQA and Site Clearances DWR will assess the proposed well location prior to commencing any construction. DWR's site evaluation may include a review of information provided by the GSA, independent on-site review, or both. If DWR determines that an on-site review is required, the GSA shall make the site accessible to DWR staff or contractors. If DWR determines that no exceptions exist to the project being exempt from the California Environmental Quality Act, DWR will file a Notice of Exemption (NOE) with the Office of Planning and Research. If DWR determines that filing a NOE is not appropriate, the GSA may propose another well location, however DWR will not undertake any construction unless DWR determines that the site provided is eligible for a NOE. DWR will contact Underground Service Alert North (81 1) and conduct utility locating, as needed, to ensure safe execution of the project's construction. 2 — Permitti.ng Site Entry The project is to be located on property owned by Stockton East Water District (SEWD), a public agency and the GSA, which has agreed to enter into a land use agreement with DWR providing enough area.and accessibility for DWR to construct the monitoring wells and the GSA to operate and maintain groundwater monitoring equipment as described herein for the useful life of the project. Other A well drilling and construction permit will be obtained by the GSA. DWR will not make reimbursements for any permit fees. 3 —Construction Activities Dust or Noise Mitigation Vehicles driven on unpaved roads will travel at speeds that minimize dust. If reducing traveling speeds on unpaved roads is not enough to control dust, then the roads used by work crews will be sufficiently sprayed with water at the beginning of each day. Wetting will occur more frequently during the day or night as needed to prevent the occurrence of dust nuisance. Drilling and Well Construction Work crews will mobilize to the work site with all equipment necessary to construct the project improvements. On the first and every day of field work, a minimum 10 -minute safety meeting will be conducted by work crews to review, discuss, and sign a daily Job Hazard Analysis sheet. The following details outline the general project construction: 1. The work site will be set-up for efficient execution of work tasks. 2. Direct mud -rotary drilling, drill fluid conditioning, and drill cuttings containment will be performed to: a. Drill an 8- or 10 -inch -diameter pilot hole to a total depth of approximately 1,650 feet below the ground surface. b. Conduct geophysical logging to the total borehole depth including: natural gamma ray; spontaneous potential; short -normal, long -normal, and lateral (point) electrical resistivity, and; caliper logs. c. Construct a sing le -co mpletion monitoring well in the pilot hole for the deepest target zone. d. Step -over at least 10 feet and drill a second boring to construct a quadruple -completion monitoring well (e.g., four well casings in a single borehole) for the four additional targeted zones. 3. All of the following tasks will be completed under the direction of a Professional Geologist: a. Supervision of the drilling, well construction, and well development operations. ID. Examination of drill cuttings during drilling and creation of a lithologic log of the boring.