Laserfiche WebLink
Page 2 <br /> San Joaquin County Public Health Services <br /> Subject: Minor Subdivision Application No. MS 01-20 Soil Suitability Study <br /> IV. SOIL PROFILE <br /> The topographic soils map prepared by the United States Department of Agriculture, Soils <br /> Conservation Service, indicates the soil at this site is primarily Bruella Sandy Loam and San <br /> Joaquin Loam. Visual inspection of the soil strata from the percolation test holes confirms the <br /> soils are a medium density soil with moderate cohesive properties. <br /> The latest San Joaquin County Water Conservation District Maps reveals the standing water <br /> level of the subject site to be at a depth of approximately one hundred twenty feet (120'). This <br /> relates to a groundwater elevation of approximately negative twenty-five feet (-25'). The <br /> existing domestic/irrigation well draws water from approximately one hundred eight feet <br /> (180'). Water samples drawn from the well at 4:05 p.m. on October 8, 2001 were tested for <br /> nitrates and dibromochloropropane (DBCP) at a State certified laboratory. A copy of the test <br /> results is attached. The nitrate and DBCP levels were both below the Maximum Contaminate <br /> Level (MCL). <br /> V. PERCOLATION TESTS <br /> Percolation tests were performed on October 8, 2001, according to the testing criteria <br /> established by San Joaquin County Environmental Health. The observed percolation rates for <br /> the four (4) test holes were 50 minutes per inch, 41.67 minutes per inch, 16.67 minutes per <br /> inch, and 25 minutes per inch, respectively. Attached is a copy of the test log and soil boring <br /> location map. <br /> VI. CONCLUSION <br /> Based upon the soil profile and the results of the percolation tests, it is the opinion of the <br /> undersigned that the soil conditions are suitable for the purpose of the subject application, <br /> which is to create three (3) five (5) acre sites and one (1) 4.97-acre site. No statement is being <br /> made at this time as to the recommended septic area, as the future use for these proposed <br /> parcels is unknown. <br /> Our professional opinion is that the above findings and statements do not constitute either an <br /> expressed or an implied guarantee of warranty. <br /> Very truly yours, <br /> Siegfried Engineering, Inc. <br /> Lie A. Corrales, P.E. #21447 <br /> enclosures <br /> cc: Mr. David Long <br /> f.\044271Soi1Suitability.doc i I N I-NfER---A <br /> LfNG inc <br />