SU0001114 SSNL - Laserfiche WebLink

Home Browse Search

File No. 20-3564-01 KLEINFELDER March 26, 1992 Reference is made to Plate I of this report which shows the location of the Pedro property. The majority of the site area consists of agricultural and pasture land with scattered residences. On March 3 , 1992 , a representative of our firm visited three residences located on Dove Road. The purpose of the visits was to obtain information on septic system use and to inquire about any problems known to exist with this method of sewage disposal. Two of the residents questioned reported having no problems with the performance of their septic systems and indicated that their private wells produced "good" quality water. No one was home at the third residence. ITEM C-2 • "The suitability of the soil for development utilizing septic systems; " On March 5, 1992 , a representative of our firm drilled and set-up one 3-foot deep percolation test hole on the proposed 4-acre parcel and one on the proposed 16-acre parcel. The test holes were drilled with hand drilling equipment using a 6-inch diameter, continuous-flight auger. Perforated PVC pipe was inserted into the test holes to prevent disturbance when adding water. The test holes were filled with relatively clean water and left to soak overnight. On March 6, 1992, our representative returned to the site to perform the percolation tests. As per San Joaquin County guidelines, the tests were performed for a period of 4 hours. The last 30 minutes of each test were used to calculate the percolation rates. In order to use standard leach lines, the County requires a percolation rate of 60 minutes per inch, or faster, at the 3-foot depth. Based on this criteria, failing tests were obtained for both of the 3-foot deep tests. On March 19, 1992 , representatives of our firm returned to the site and drilled and set-up one approximate 14-foot deep and one approximate 8- to 10-foot deep test hole on each of the two parcels. These test holes were drilled using a truck-mounted drill rig equipped with 6-inch diameter, continuous-flight augers The test holes were cased and presoaked as per County guidelines. On March 20, 1992, our representative returned to the site and performed the percolation tests. In order to use sump pits, the County requires a soil strata with a percolation rate of 30 Copyright 1992 Kleinfetder, Inc. Page 2 of 4