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e� THE <br /> nmental SOURCE GROUP, INC. <br /> May 15, 2008 <br /> Ms. Amy Terrell <br /> California Regional Water Quality Control Board <br /> Central Valley District <br /> 11020 Sun Center Drive#200 <br /> Rancho Cordova, CA 95670-6114 <br /> Subject: Well Installation Scope of Work <br /> 938 Frontage Road, Ripon, California <br /> Dear Ms. Terrell: <br /> The Source Group, Inc. (SGI) presents this detailed scope of work for the installation of a total <br /> of seven monitoring wells, including five shallow wells and two deeper wells, near the above <br /> referenced Site. SGI is presenting this scope of work on behalf of Herum Crabtree Brown. This <br /> scope of work is being proposed to assist with the delineation of nitrates present in <br /> groundwater, including potential source identification. The scope of work presented herein will <br /> support the delineation activities. <br /> SCOPE OF WORK <br /> Activities will include installing five shallow monitoring wells (three onsite, two offsite) and two <br /> deeper offsite monitoring wells to assess the presence of nitrate in groundwater. The <br /> investigation will include permitting, drilling, soil sampling, well installation, development, <br /> surveying, and groundwater sampling and analysis. <br /> Pre-field Activities <br /> The Source Group will perform pre-field activities including preparation of a site-specific Health <br /> and Safety Plan (HASP), submittal of a Drilling Permit Application, and utility locating for <br /> selecting final well locations. <br /> The site-specific HASP will comply with federal OSHA regulations (29 CFR, Section 1910.120). <br /> All SGI personnel and subcontractors associated with the project will be required to be familiar <br /> and comply with all provisions of the HASP. <br /> 3451-C Vincent Road Telephone:(925)944-2856 <br /> Pleasant Hill,California 94523 Facsimile:(925)944-2859 <br /> Scap Letler SJCEHD.dm <br />