SU0005931_SSNL - Laserfiche WebLink

Home Browse Search

28155 7/10176 X 24 28660 7/17/78 X 22 29001 5/18/93 X 0 29001 1110/08 Not hooked up until 1110/08 2 The history of the area appears to be satisfactory, but there is no large scale development. It may be 10 years before the lots are sold. Mountain Counties are moving more and more towards pressure systems. Gravity flow septic systems may work on this site but it depends on where the owner places the home. The large lots (80 acres) provide adequate room for any system. GROUNDWATER INFORMATION The map Lines of Equal Depth to Groundwater, SJC, does not show any data for the site. Map included in this report. Estimated depth is 90' +. The well permit for 29001 Hwy 26 shows 100'to water. (Copy included) SOIL PROFILE INFORMATION No pit was excavated. All shallow(42") holes were hand excavated. All holes except one contained small rocks that had to be removed in order to proceed to the desired depth, 42". All holes were 4" to 6" diameter. Many holes were started but refusal occurred prior to 42". On 'y� Parcel 1 and 3 refusal occurred between 18" and 30" on all holes. ( Six on each lot)A layer of rock exists of unknown thickness and efforts to break thru the rock were unsuccessful. The rock has broken over the years and if the breaks could be located it would be possible to dig deeper than 42". See description of the soil in Soil Survey of San Joaquin County included . The soil description is Number 17, Pentz-Pardee-Keyes. Portions of Soil Type 18 may also exist in this area. This location is in the Red Zone as categorized by SJ County,EHD. This requires pits or a strata that has an acceptable percolation rate. Some test holes contained black silty sand, others silty clay. All but one hole contained rocks. PERCOLATION TEST INFORMATION The tests conformed to SJC Policy EHD 02-02. All holes were shallow holes. See schematic C�.S drawing showing test hole configuration as it applies to shallow holes. Mr. Mike Escotto, REHS of San Joaquin County was present for all critical readings. All field forms were signed and are �\\ included in this report and include the location(GPS readings)of the test hole.No field forms 'f exist for Parcel 1 and 3. 2. }