SR0080103 SSNL - Laserfiche WebLink

Home Browse Search

• NOTES 1. Refer to Chesney Consulting Nitrate Loading Mitigation Report, dated January 17, 2019, Report No. NLMR02.19. 2. Septic tank excavation must be re-excavated to original and proper depth and elevation. The top of the tank should be as close to final elevational grade as possible. 3. Trenches for the Infiltrator Chambers must be re-excavated to original depth and elevation, and prepared for organic material. After excavations, add one-inch of sawdust/compost organic material and rake into the top two inches of soil at the soil-effluent interface the entire lengths of the Chamber trenches. Total volume of sawdust/compost needed= 82 cubic ft. Call for EHD inspection (209) 468-3420 upon completion. 4. The 100% replacement area filter bed must be located to the south of the residential structure, as illustrated (1"=20'). Run 4" tightline from septic tank at 0.125 ft/ft for 20 ft to nine (9) hole Tuf-Tite D-box, Part No. B3-RL-IP. Run 4" tightlines at 0.125 ft/ft to 4" perforated laterals that run level N-S through filter bed. Cap ends of perforated laterals. 5. Grades: Septic tank at grade; invert= 10" Travel through tank= 2" Travel 20' tightline to D-box = 2.5" Travel through D-box = 2" Travel 40' (Max. Distance)through tightline to per£ Lateral = 5" Grade drop= 21.5" 6. Filter bed detail: Native soil cover over filter bed= 16" 2" drain rock above 4 inch perforated pipe with filter fabric. 4" perforated pipe 12" drain rock Total depth of filter bed= 34" 7. As with the Chamber leachlines, one inch of a sawdust/compost organic material must be placed on the floor of the replacement filter bed and raked into the top two inches of soil-effluent interface soil before the importation of drain rock. Total volume of sawdust/compost needed= 140 cubic ft.