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SAN JOAQUIN COUNTY ENVIRONMENTAL HEALTH DEPARTMENT 304 East Weber Avenue, Third Floor, Stockton, California 95202-2708 September 13,2006 0 To: San Joaquin County Community Development Department From: San Joaquin County Environmental Health Department Contact Person: Lisa Medina, Senior R.E.H.S.,Phone: (209)468-3455 RE: PA-0500467(SU) SU006219 Attention: Karla Kuhl 26618 North Lower Sacramento Road,Galt The same conditions apply as those in our prior memorandum dated July 31,2006. A. 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 submittal of tentative map(San Joaquin County Development Title, Section 9-905.12(a)(c)). NOTE: A Surface/Subsurface Contamination Report dated April 2006 and addendum dated May 2006,were reviewed by the Environmental Health Department. An additional addendum addressing outstanding issues shall be submitted to and approved by the Environmental Health Department before the report can be given final approval. 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 ofparcel/final map(San Joaquin County Development Title, Section 9- I I05.2(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: If percolation tests fail,then additional percolation tests are to be conducted in areas of proposed engineer-designed septic systems. All percolation tests are to be a minimum of 100-feet away from wetland boundary. 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 ander the San Joaquin County Sewage Standards,Section 10.3.4. D...... 4 -ell ..,,...