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d <br /> San Joaquin County DIRECTOR <br /> ° ° Environmental Health Department Donna Heran, RENS <br /> ASSISTANT DIRECTOR <br /> N 600 East Main Street Laurie Cotulla, REHS <br /> # Y Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> c `':•; c Carl Borgman,REHS <br /> Q�'fip�a` Mike Huggins, RENS, RDI <br /> Website; www,sjgov.org/ehd Margaret Lagorio,REHS <br /> Phone: (209) 468-3420 Robert McClellon, REHS <br /> Fax: (209) 464-0138 Jeff Carruesco, REHS,RDI <br /> Kaley Foley, REHS <br />' May 21,.2007 <br /> Kevin Swanson <br /> I San Joaquin County Community Development Department C(DPY <br /> 18 1.0 E.Hazelton Avenue <br /> Stockton,California 95205 <br /> RIE: DRAFT ENVIRONMENATL IMPACT REPORT VERNALIS WEST AND <br /> EAST PROJECT <br /> In accordance with the existing groundwater related conditions of the Permit No.QX-91-5 the <br /> following comment(s)are directed to Section 4.1 Water Resources. <br /> I) As a basis for initial and ongoing monitoring of water quality and groundwater levels in the <br /> vicinity of the quarry,the applicant shall annually submit to the Environmental Health I <br /> Department a report on the status of water supply wells around the general perimeter of the <br /> permitted mining area. A copy of the annual report shall be submitted to the Development <br /> Services Division and affected property owners. The number and location of monitoring <br /> wells shall be determined by the Environmental Health Department,provided there shall be a <br /> minimum of ten monitoring wells for groundwater levels and five monitoring wells for water <br /> quality(two shall be up-gradient from the project site, two shall be down-gradient from the <br /> project site, and one shall be on the site). <br /> 4 <br /> 2) In the event the applicant is unable to obtain or retain the required water wells for water + <br /> quality testing, the applicant shall procure new wells for monitoring purposes at locations <br /> acceptable to the Environmental Health Department. The wells to be tested for groundwater <br /> quality shall, at a minimum, be tested for general minerals and nitrates. In addition,tested <br /> ir <br /> wells that are used for domestic purposes shall also be tested for bacteria. The applicant shall <br /> pay a$450.00 fee to the Environmental Health Department to cover the cost of reviewing the <br /> annual water quality reports. The fee shall be based upon the Environmental Health <br /> Department's hourly billing rate of$95.00 per hour. <br /> Should you have any questions,please call Rod Estrada,Lead Senior R.E.H.S. of my staff at <br /> (209)468-0331. <br /> Donna Heran, R.E.H.S.; Director <br /> Mike Huggins, Program Coordinator,R.E.H.S.,R.D.I. <br /> Environmental Health Department <br /> MH: tl <br />