SU0006441 SSNL - Laserfiche WebLink

Home Browse Search

lk� ..1 18 May 2007 AGE-NC-07-1528 Page 4 of 5 The final 30-minute interval was observed by Ms. Lisa Medina of the SJCEHD. After completion of the test Ms. Medina reviewed the field data and signed the required SJCEHD Percolation Test Rate form. Based on the field measurements collected, the percolation rate for the parcel was calculated and summarized in Table 2 below; field measurements recorded during the test are included on the Percolation Test Rate Field Sheet provided in Appendix B. The SJCEHD Onsite Wastewater Treatment System Permit for the percolation test for test hole TH-1 is included as Appendix B. Table 2 TEST HOLE PERCOLATION RATES Test No. Diameter of Hole Depth of Hole Percolation Rate (inches) (inches) (min/in) TH-1 4 42 16.67 7.0. CONCLUSION Based on the data collected from the site, AGE concludes: • The procedures used to the conduct percolation test for test hole TH-1 conformed to SJCEHD Policy 02-02. • The soil sample collected from TH-1 consisted of soils classified as clays with sand. • The data collected from the percolation test indicates a suitable percolation rate of 16.67 minutes per inch (min/in). Based on the data there are areas within the parcel (e.g., in the vicinity of the percolation test)that should be suitable for onsite sewage disposal systems. Based on the approximated depth to ground water in the area, and the size of the parcel, it is our opinion that a properly installed and maintained septic system should not adversely affect the quality of the ground water in the area. 8.0. LMTATIONS Our professional services were performed using that degree of care and skill ordinarily exercised by environmental consultants practicing in this or similar localities. The findings were based on field testing results. Evaluations of the hydrogeologic conditions at the site for the purpose of this Advanced GeoEnviroamental,Inc.