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ENVIRONMENTAL HEALTAEPARTMENT
<br /> SAN JOAQUIN COUNTY
<br /> Unit Supervisors
<br /> Q.
<br /> Donna K xersa,R.E.H.S. 304 East Weber Avenue, Third Floor Carl Borgman,R.E.H.S.
<br /> Director
<br /> - - A]Olsen,RE.H.S. Stockton, California 95202-2708 Mike Huggins,R.E.H.S.,R.D.I.
<br /> • 6q..... ....N�P. S.
<br /> Program Manager Telephone: 209 468-3420 Douglas t Wilson,R.E.H.S.
<br /> i F o a Laurie A.Cotulla,RE.H.S. p ( ) Margaret Lagorio,R.E.H.S.
<br /> Fax: (209) 464-0138 Robert McClellon,R.E.H.S.
<br /> Program Manager Mark Barcellos,R.E.H.S.
<br /> September 23,2004
<br /> Pegasus MH Ventures I ��
<br /> Attn: Mr.Michael Clevenger O
<br /> 4900 Hopyard Road, Suite 202
<br /> Pleasanton, CA 94588
<br /> RE: 23577 Mountain House Parkway,Mountain House,California
<br /> Mr. Clevenger:
<br /> San Joaquin County Environmental Health Department(EHD)has received and reviewed the Revised Workplan/
<br /> Scope of Work, dated September 2, 2004,prepared by your consultant Kleinfelder. The EHD comments are as follows:
<br /> 1. Regional Water Quality Control Board(RWQCB) should be contacted to assess any ground water
<br /> contamination issues.
<br /> 2. If clean up goal of Not Detected(N.D.)level can not be achieved or there is any contaminated soil will be left
<br /> on site or underground,risk assessment from Department of Toxic Substance(DTSC)is recommended.
<br /> 3. Address in detail how to remove and sample he contaminated soil at,near and under Chevron and PG&E
<br /> pipelines. In addition, health and safety is ould be addressed near pipelines,which did not appear to be
<br /> addressed in detail in this plan.
<br /> 4. Address in detail of the backfilling, conon,and source of backfill material.
<br /> 5. Address the existing onsite contaml 11 stockpile and final disposition of this material.
<br /> 6. Provide documentation indicatin4ewposal arrangement.
<br /> 7. Provide Subcontractor informationW certification for Hazardous Waste/Material Handling.
<br /> Please note that the EHD in the beginning of this project indicated that if all contamination was removed to N.D. level,
<br /> the need for risk assessment would not be warranted nor any signoff would be needed. The present plan will leave
<br /> contamination in place,and due to recent rain, groundwater may have been impacted and exceed above the indicated
<br /> sample information;therefore, a risk assessment and signoff by DTSC with conjunction with RWQCB would be
<br /> appropriated.
<br /> If you have any questions,please contact Steven C. Shih at(209)468-9850.
<br /> Thanks,
<br /> DRAFT
<br /> Steven C. Shih, Senior R.E.H.S. Doug Wilson, Supervising R.E.H.S.
<br /> c.c.: Doug Heard,R.G.,REA-I,2825 E Myrtle Street, Stockton, CA 95205-4794
<br /> Gabriel E.Karam, 11 S. San Joaquin Street, 7th Floor, Stockton, CA 95202
<br /> DTSC—P.O. Box 806, 10011 Street, Sacramento,CA 95812-0806
<br /> CRWQCB— 11020 Sun Center Drive#200,Rancho Cordova,CA 95670-6114
<br /> 23577 Mountain House Parkway Page 1 of 1
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