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ENVIRONMENTAL HEALTH DEPARTMENT SAN JOAQUIN COUNTY Unit Supervisors Donna K.Heran.R.E.H.S. 304 East Weber Avenue, Third Floor Carl n.R.E.H.S. Director Mike Huggins. R.E.H.S., R.D.I. Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W. Wilson. R.E.H.S. • cq;r .�w • Program Managtr Telephone: (209) 468-3420 Margaret Lagorio.R.E.H.S. FOA Laurie A.Cotulla.R.E.H.S. Robert McClellon.R.E.H.S. Program Manager Fax: (209) 464-0138 Mark Barcellos.R.E.H.S. November 10, 2004 TO: San Joaquin County Community Development Department FROM: San Joaquin County Environmental Health Department CONTACT PERSON: Raymond Borges,Lead Senior R.E.H.S., R.D.I. 0� gy PHONE NUMBER: (209) 468-3284 RE: PA-04-650 (GP,Pre-application), Attention: John Funderburg 2611 East Liberty Road, Galt The Environmental Health Department has the following concerns on this pre-application that need to be addressed: A. Prior to acceptance of application, a qualified environmental professional shall prepare a surface and subsurface contamination report, identifying any potential source of surface or subsurface contamination caused by past or current land uses. The report shall include evaluation of non-point source of hazardous materials, including agricultural chemical residues, as well as potential point sources, such as fuel storage tanks, septic systems, or chemical storage areas. If the report indicates there is contamination, corrective action shall be taken, as recommended in the report and concurred with by Environmental Health prior to Final Map Approval (San Joaquin County Development Title, Section 9-905.12(a)(c)). B. Environmental Health Department requires a_Soil Suitability/Nitrate Loading Study indicating that the area is suitable for septic tank usage. This must be performed prior to recordation of parcel/final map (San Joaquin County Development Title, Section 9- 1105.2(d)). A Nitrate Loading Study is required, and a review fee of$465.00 must be paid at time of submittal to Environmental Health Department. The sewage disposal system shall comply with the on site sewage standards of San Joaquin County prior to approval. A percolation test that meets absorption rates of the manual of septic tank practice or E.P.A. Design Manual for onsite wastewater treatment and disposal system is required for each parcel. A permit fee of$93.00 per percolation hole is required. NOTE: All percolation tests are to be conducted in areas of proposed engineer-designed septic systems. All percolation tests art to be a minimum of 100-feet away from wetland and open space areas boundaries. Prior to approval of percolation tests, a Parcel Map shall be submitted to the Environmental Health Department with dimensions of Septage area required by percolation tests'under the San Joaquin County Sewage Standards,Section 10.3.4. RM Page 1 of3