FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

4.3 Septic Soil Sampling and New Tank Placement On April 14, 2006 the St. Francis Motel septic tank was excavated and exposed. The lines leading into and out of the septic tank were also exposed. The liquid contents of the septic tank were removed by Frank Jr by pumping. Approximately 3,180 gallons of liquid waste were pumped from the tank and transported to the Stockton Regional Waste Control Facility (SRWCF) located in Stockton, California under manifests#20501 and 20502. Copies of these manifests are provided in Appendix 1. The septic tank was pumped dry and it was steam cleaned by a Hotsy steam cleaning system. The rinsate was pumped out along with the other liquid. The tank was allowed to dry and the floor was inspected. Numerous cracks were found to be present on the west end of the septic tank floor. Based on the crack pattern in the floor of the septic tank, Mr. Patel determined that the best way to complete the investigation was to remove the septic tank altogether. On April 20, 2006 the septic tank was pumped dry again by Frank Jr. and the tank steam cleaned. Approximately 3,180 gallons of liquid waste were transported to the SRWCF site under manifests#20509 and 20510. A hole was cut in the floor of the west end of the septic tank so a soil sample could be collected. A 2" diameter hand auger and soil sampling device was placed into the hole cut out of the bottom of the septic tank. Two undisturbed soil samples were collected from a depth of 0.5 and 3.0 feet below the base of the tank and designated as SFM-SB 1-05 and-3.0. These samples had a total depth of 8.0 and 11.0 feet below ground surface(bgs). Once the soil samples were collected the septic tank was demolished and removed. The soil sample SFM-SB1-0.5 was analyzed by GeoAnalytical Laboratories using the following USEPA Test Methods: (1)pH using USEPA Test Method 9045; (2) iodine using USEPA Test Method SM4500-I BM; (3)chlorides using USEPA Test Method 300.0 and; (4)organic volatile compounds using USEPA Test Method 8260B. Soil sample SFM-SB 1-3.0 was placed on hold pending analytical results from the 0.5 foot sample. MainTnvironmental\St.FrancisMotel\Report\Report05252006.wpd 10