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HomeMy WebLinkAboutApproved Septic Plan 2025SO~l 7rlES7r lOG DATE: OCTOBER 21, 2025 SOIL EVALUATOR: DAVID D. COUGHANOWA. ASE #461 WITNESSED BY: BARAY LEWIS. HEAL TH DEPT. TEST PIT l NO GAOUNDWA TEA ENCOUNTERED PEAC AT 60 in -2 MIN/INCH IN C SOILS ELEVA TIO N DEPTH SOIL USDA SO IL SOIL COLOR SOIL OTHER INCHES HORIZON TEXTURE IMUNSELLI MOTTLES 30.25 0-7 Ap SANDY LOAM 10 YA 3/2 NONE FRIABLE 27.75 18.75 -7-30 Bw LOAMY SAND 10 YA 5/8 NONE LOOSE 30-138 C MEDIUM SAND 10 YA 6/4 NONE LOOSE TEST PIT 2 NO GAOUNDWA TEA ENCOUNTERED PEAC AT 60 in -2 MIN/INCH IN C SOILS ELEVA TIO N DEPTH SO IL USDA SOIL SOIL COLOR SO IL OTHER INCHES HORIZON TEXTURE IMUNSELLI MOTTLES 30.40 0-6 Ap SANDY LOAM 10 YA 3/2 NONE FRIABLE 27.73 18.90 -6-32 Bw LOAMY SAND 10 YA 5/8 NONE LOOSE 32-138 C MEDIUM SAND 10 YA 6/4 NONE LOOSE 1/5<0<0 GAIL/LON SE!PuUC u ANK DIMENSIONS & DETAIL USE SHOREY S T-15 00-H-10 © INLET COVER 48 in LIQUID LEVEL NOT TO SCALE 5 ft- 8 in \0 OUTLET COVER 6 in STONE BASE SEPARATION BETWEEN INLET & OUTLET TEES NO LESS THAN LIQUID DEPTH CROSS SECTION VIEW DUSu~U~UuUON ~ox ugi_~H~JgY DIMENSIONS PIPES EXITING D-BOX TO RUN LEVEL AND DETAIL FOR 2 FEET BEFORE PITCHING DOWN l 0 _J£ ~~n:lL FR0111 -£ .!: -TANK lO lO fTDO --=-0: r-,:~ SAS 6 in STONE BASE CROSS SECTION VIEW w p TOP OF FOUND A Tl EL = 31.09 +- COVERS TO WITHIN OF FINAL GRADE '¥ t t DESIGN FLOW: 4 BEDROOMS X 110 GPD = 440 GPD SEPTIC TANK: 440 GPD X 2 DAYS = 880 GALLONS INSTALL NEW 1500 GALLON SEPTIC TANK. DISTRIBUTION BOX: INSTALL UNIT DEPICTED SOIL ABSORBTION SYSTEM: THE LONG TEAM ACCEPTANCE AA TE FOR A CLASS ONE SOIL WITH A PERCOLATION RATE BELOW 5 MINUTES PEA INCH = 0.74 GALLONS PEA DAY PEA SQUARE FOOT. THE .L. SHAPED LEACHING GALLERY DEPICTED BELOW CAN LEACH: BOTTOM AREA = (12.83 x (25+8.5) = 429.8 sq. ft. SIDEWALL AREA = 2x PERIMETER = 185.3 so. ft. TOTAL AREA = 615.1 sq. ft. FLOW CAPACITY = 0.74 x 615.1 = 455.l gal/da8 INSTALL THE "L. SHAPED LEACHING GALLERY AS CONFIGURED BELOW. FLOW CAPACITY = 455.1 gal/day WHICH EXCEEDS THE 440 galldoy REQUIRED FOR A FOUR BEDROOM DESIGN. fSOU!L A/8JfSOR!PTUON fS YfS TIEM CONSTRUCTION DETAIL USE SHOREY PRECAST 500 GALLON LEACHING DRYWELL DRYWELL 12 .83 ft PERIMETER = UNIT +' 12.83 -+8.50 0 +12.17 LI) +12.83 12.17 ft CX) +25.0 +' +21.33 -o.., (") si-+' -=92.67 (") C'l • • (") N ~~ CX) 'I' N o.., si- STONE 4 ft 8.5 ft 8.5 ft 4 ft 25 ft 500 GALLON DRY WELL DIMENSIONS & DETAIL INSTALL ONE INSPECTION 0 RISER TO WITHIN THREE INCHES OF FINAL GRADE & IND/CA TE LOCATION ON AS-BUILT 36 in CROSS SECTION VIEW 28] ,n 1 INSTALL AN APPROVED GEOTEXTILE FABRIC OVER STONE ■ ■ 3/4 in TO ■ 24 in ■ 3/4 in TO 1-112 in GRAVEL ■ EFFECTIVE■ 1-112 in GRAVEL ■ DEPTH ■ 48 in ~ .. 58 in ~ .. 48 in 154 in ALL STONE TO BE DOUBLE WASHED AND FREE OF IRONS. DUST AND FINES IN PLACE 0 l ALL PIPE TO BE 4 in SCH. 40 PVC : AND TO PITCH AT 1/8 in/ft MIN :_ 30.50 '¥ '¥ :t [E I ~NS7rAll 15(0)(0) GAllON SIEIPT~C T ANIK ~~ ~ 26.75 3· MAX 26.20 ===1 26.00 26.17 25.7 3 ft 9 ft PRECAST DRYW ELL SO~l A~SOIRIP7r~01Nl +' <R'~<R'"iFIEli.\lil -REFER TO <+- g u g u l.!;;U\Y/U DETAIL BOX q l{) NO GAOUNDWA TEA BELOW 23.15 MOTTLING OBSERVED -=-18.75 I SEWAGE DISPOSAL SYSTEM PLAN I I 19 MAINE A VENUE YARMOUTH. MA II OCTOBER 27, 202511 ETE-4840II PG 2,21