SU0000114 SSNL - Laserfiche WebLink

Home Browse Search

SOIL SUITABILITY STUDY MS-98-25 PARCEL NOS , 1 AND 2 below the ground surface with a hardpan or cemented layer at about 4 . 5 ft . below the ground surface . The University of California publication entitled "Soils of San Joaquin County , California" by Walter W . Weir , dated June 1952 , refers to the soil in this general area as "Hanford Sandy Loam, with calcareous subsoil or brown Hanford Sandy Loam" and good to excessive surface and subsurface drainage . The "Soil Survey of San Joaquin County , California , United States Department of Agriculture Soil Conservation Service" , issued October 1992 , lists the general soil type in this area as "Devries Sandy Loam" , drained with 0% to 2% slopes . By layers the soils are listed as follows : 0-13 feet below the ground surface - Sandy Loam, 14-28 feet below the ground surface - sandy or fine sandy loam, and 29-86 feet below the ground surface - silty indurated loam. Percolation Tests : The minimum water level drop of 1j2" recorded in a 30 minute period during the total test period was used to determine the reported percolation rate for Percolation Test Hole Nos . 1 and 2 . The two (2) tests resulted in percolation rates of 60 minutes per inch for each of the test holes . The water level drops for every half hour are shown on the attached "Field Percolation Data Sheet" . TEST RESULTS : Parcel No . Test Hole Percolation Rate Minimum Usable N0 . (Minutes Per Inch) Disposal Area (Square Ft . ) 2 1 60 12 , 000 2 2 60 12 , 000 The calculated minimum usable disposal areas are not recommended for design purposes , however , due to the high level of groundwater . RECOMMENDATIONS : Due to the closeness of the groundwater to the ground surface (4 . 0 ft . minimum to 5 . 0 ft maximum below the ground surface) the use of a leach field or seepage pit design is not acceptable . Instead , in any future development of this property involving the need for a septic system, a mound septic system design or a specially engineer designed septic system will be required . Well Water Analysis : The well water analysis on this subject property was performed by Far West Laboratories , Inc . and is shown on their attached letter dated October 5 , 1998 , which is attached to and made an integral part of this report . Two well locations are shown on the attached "Tentative Parcel Map" and Site Plans "A and B" . One well is located on Parcel No . 1 and the other on Parcel No . 2 . Only the well on Parcel No . 1 was tested because the laboratory DUNGAN FAMILY TRUST , 18913 JACOB BRACK ROAD , LODI , CA. 95242 3