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HomeMy WebLinkAbout36.66.2 Septic System Design PlanSOIL TEST PIT DATA NOT TO SCALE TEST PIT TP -2A( 1) DATE 10-8-14 GRD. EL 18.8 SHGW EL N/A EL 17.8 EL 16.6 EL 15.1 / 0/A TP -2B( 2) SANDY LOAM j10YR 3/2 1: B LOAMY SAND 10YR 5/6 C COARSE SAND 10YR 4/6 NO GROUNDWATER OBSERVED !• EL 17.2 26' EL 16.2 44 - TEST PR TP -2B( 2) DATE 10-8-14 GRD. EL 17.7 SHGW EL 9.0 EL 9.0 EL 7 7 20 . V ADJUSTED GROUNDWATER LOW POINT IN STREET, ELEVATION 9.0 PER BOH AGENT OA SANDY LOAM j10YR 3/2 / B / LOAMY SAND 10YR 5/6 C COARSE SAND 10YR 4/6 NO GROUNDWATER OBSERVED 6' 18• 104- 120 - ONSITE SOIL EVALUATION DATE: OCTOBER 8, 2014 TEST BY: BSC GROUP, INC. WITNESSED BY. AMY VON HONE, R.S., CHO LICENSED SOIL EVALUATOR: KIERAN J. HEALY, PLS PERCOLATION RATE: < 2 MINS./INCH SOIL CLASS: CLASS 1 LT.A.R.: 0.74 GPD/S.F. LEGEND UNSUITABLE SETBACKS: FRONT 30' ** SIDE 25' ** LjMATERIALS (TO BE REMOVED) REAR 20' ** PERCOLATION Z ESTIMATED T - SEASONAL HIGH EST RANGE GROUNDWATER 1 (6) 5- DIAMETER B. KNOCKOUTS (TYP.I f REMOVABLE 1 COVER 5• \ 40- O O 240 I I COVER DIA 7� 3 ' BOTTOM ON LEVEL STABLE BASE 6' MINIMUM 3/4- TO 1-1/2- --- 24' -� cFrnON VIEW CRUSHED STONE PLAN VIEW / NOTES (\ 1. DISTRIBUTION BOX TO WITHSTAND H-20 LOADING. ! i 2. ALL PIPE CONNECTIONS AND CONCRETE CONSTRUCTION SHALL BE WATERTIGHT. .q„ 3. FIRST TWO FEET OF PIPES OUT OF DISTRIBUTION BOX SHALL BE WD LEVEL. 4. FILL ALL UNUSED KNOCKOUTS WITH MORTAR. 5. CONCRETE COVER SHALL BE SET WITHIN 6 INCHES OF FINISHED GRADE. DESIGN CALCULATIONS DESIGN FLOW 3 BEDROOMS O 110 GPD/BEDROOM = 330 GPD 330 GPD X 2007 = 660 GALLONS USE 1,500 GALLON SEPTIC TANK S17E OF REOUIRED t L6Q9 FACILItY DESIGN PERC. RATE: <2 MIN/NCH LONG TERM APPL RATE. 0.74 GPD/SF 330 GPD + 0.74 GPD/SF = 446 SIF SIZE OF LEACHING FACILITY PROVIDED USE (3) 500 GALLON CONCRETE LEACHING CHAMBERS IN TRENCH CONFIGURATION WITH 3' STONE ON ENDS AND 1.5' STONE ON SIDES. BOTTOM AREA 36.0' X 8.0' a 288 S.F. SIDEWALL AREA: 2 X (2 X (36' + 81) - 176 S.F. EFFECTIVE LEACHING AREA 464 S.F. 464 S.F. X 0.74 GPD/S.F. = 343 GPD (INSTALLED CAPACITY) 343 GPD > 330 GPD (13 GPD RESERVE CAPACITY PROVIDED) NOT TO SCALE NOTES 1. SEPTIC TANK SHALL BE STEEL REINFORCED CONCRETE 2. SEPTIC TANK SHALL BE CAPABLE OF WITHSTANDING H-20 LOADING. 3. ALL PIPE CONNECTIONS AND CONCRETE CONSTRUCTION SHALL BE WATERTIGHT. 4. TEES SHALL BE SCH. 40 PVC AND SHALL BE LOCATED WITHIN 12" OF TANK WALL AND ACCESSIBLE FROM TANK COVER. 5. FILL ALL UNUSED KNOCKOUTS WITH HYDRAULIC CEMEN . ss. INSTALL 32' LONG POST & RAIL FINCE BETWEEN ADJACENT PROPERTIES WITH 3 -CONSERVATION ROSES (TYP.) / ED s S 'F 100' BUFFER TO BOG AND WETLANDS (BOG DRY) MIN. 20" DIA. COVER. TYP. RAISE (2) TO WITHIN 6- OF FINISHED GRADE USING SEWER BRICK AND MORTAR AS NECESSARY 6' MAX \ gzor- ad 6 3p p• = g lu LIQUID 6 - - - LOCATE DEPTH INLET TEE OUTLET TEE O O UNDER COVER CUTLET BAFFLE 6 -2- - 6. B" !• 6- MINIMUM pl AN VIEW 3/4' To 1-1/2" CROSS-SECTION VIEW CRUSHED STONE NOT TO SCALE 4" PERFORATED PVC 20" ACCESS COVER WITHINTO W/SCREW CAP TO EXTEND DOWN OF FINISH GRADE TO NATURAL SUBGRADE LOAM AND SEED 5- DIA. KNOCKOUT (TYP.) I FALL DISTURBED AREAS 1-1/2- TAPER i C12-36*CO.VER C� C� OO �C� --77 HDPE RISER C� T 00 00 000 00 0o I ®o o J O� C�� �= 0O �O. 36' � C� C� 0 0 o EFFECTIVE� oDEPTH i� C� 17-71-10" FRONT VIEW 8'-0" NOTES: SIDE VIEW 1. ONE ACCESS COVER PER SYSTEM SHALL BE RAISED TO FINISH GRADE. 2. CHAMBERS SHALL BE 500 GALLON LEACHING DRYWELL, MANUFACTURED BY SHOREY OR APPROVED EQUAL 3. GEOTEXTILE FABRIC MAY BE USED IN LIEU OF DOUBLE WASHED STONE. CONCRETE BOUND /DRILL HOLE ,FOUND & HELD Ii / / N/F / MARYELLEN MICHAELS ASSESSORS MAP 36 PARCEL 53 2" LAYER OF 1/8- TO 1/2- DOUBLE WASHED STONE ABOVE.CROWN OF PIPE 3/4' TO 1 -1/2 - DOUBLE WASHED STONE TO CROWN OF PIPE 1 EX. FIRE \ HYDRANT oy� \ \ LOCUS INFORMATION CURRENT OWNER: HABITAT FOR HUMANITY Z Z r N OF CAPE COD, INC. TITLE REFERENCE: DEED 28050, PAGE 152 PLAN REFERENCE: PLAN 422, PAGE 58 ASSESSORS MAP: 36 PARCEL: 65 & 66 ZONING DISTRICT: B-1 SETBACKS: FRONT 30' ** SIDE 25' ** PROFESSIONAL ENGINEER REAR 20' ** MINIMUM LOT SIZE: 25,000 S.F. ** LOT AREA: 8,472± S.F. NITROGEN SENSITIVE MASSACHUSETTS ZONE: NOT A ZONE II FEMA FLOOD NO. ZONE DISTRICT: "X" DATED 7/16/2014 PANEL #25001CO569J (ABOVE 500 YEAR FLOOD ZONE) OVERLAY DISTRICT: NONE ** REDUCED BY COMPREHENSIVE PERMIT SEE ZBA REC. DECISION 28050-176 GENERAL NOTES 1. THIS PLAN IN ONLY INTENDED FOR THE PERMITTING AND CONSTRUCTION OF THE SEWAGE DISPOSAL FACILITIES AND THE NEW DWELLING. 2. ALL CONSTRUCTION METHODS AND MATERIALS SHALL CONFORM TO 310 CMR 15.000 AND YARMOUTH BOARD OF HEALTH REGULATIONS. 3. THERE ARE NO KNOWN OR PROPOSED PRIVATE WELLS LOCATED WITHIN 150 FT. OF THE PROPOSED LEACHING FACILITY. 4. IF AN OVERDIG IS SPECIFIED, REMOVE ALL TOPSOIL, SUBSOIL AND OTHER UNSUITABLE MATERIALS. 5. IF AN OVERDIG IS SPECIFIED, REPLACE ALL EXCAVATED MATERIALS WITHIN THE LIMIT OF EXCAVATION WITH CLEAN GRANULAR SAND, FREE FROM ORGANIC MATERIAL AND DELETRIOUS SUBSTANCES. MIXTURES AND LAYERS OF DIFFERENT CLASSES OF SOIL SHALL NOT BE USED. FILL SHALL NOT CONTAIN ANY MATERIAL LARGER THAN 2 INCHES. A SIEVE ANALYSIS USING A X14 SIEVE SHALL BE PERFORMED ON A REPRESENTATIVE SAMPLE OF FILL UP TO 45% BY WEIGHT MAY BE RETAINED ON THE #4 SIEVE. SUCH ANALYSES MUST DEMONSTRATE THAT THE MATERIAL MEETS EACH OF THE FOLLOWING SPECIFICATIONS: 100% MUST PASS #4 SIEVE 10% MUST PASS #50 SIEVE 0-20% MUST PASS #100 SIEVE 0-5% MUST PASS #200 SIEVE 6. EXISTING UTILITIES WHERE SHOWN ON THE PLANS ARE APPROXIMATE. THE ENGINEER DOES NOT GUARANTEE THEIR ACCURACY OR THAT ALL SUBSURFACE STRUCTURES ARE SHOWN. CONTRACTOR SHALL VERIFY THE SIZE, LOCATION AND ELEVATION OF INVERTS OF UTILITIES AND STRUCTURES, WITHIN THE LIMIT OF WORK, PRIOR TO THE START OF CONSTRUCTION. IF ANY DISCREPANCIES ARE DISCOVERED OR FIELD CHANGES REQUIRED, THE CONTRACTOR SHALL NOTIFY THE ENGINEER IMMEDIATELY. 7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROPERLY COORDINATING THE PROPOSED CONSTRUCTION ACTIVITIES WITH DIG -SAFE AND THE APPLICABLE U11UTY COMPANIES, AND SHALL COMPLETE THE PROPOSED WORK WITHOUT ANY INTERUPTIONS IN SERVICE. 8. CONTRACTOR IS REQUIRED TO NOTIFY DIG -SAFE, PER MASS. STATUTE CHAPTER 82, SECTION 40 (1-888-344-7233) A MINIMUM OF 72 HOURS PRIOR TO THE START OF CONSTRUCTION. 9. THIS SYSTEM IS NOT DESIGNED FOR THE USE OF A GARBAGE GRINDER. INSTALLATION OR USE OF A GARBAGE GRINDER AT THIS PROPERTY IS NOT ALLOWED PER 310 CMR 15.240(4). SCHEDULE OF ELEVATIONS N•srl of MAsss TOP OF FOUNDATION 20_00 A �o� cyo 4" INVERT AT BUILDING 17.00 B � KIERAN t a 4" INVERT AT SEPTIC TANK (IN) 16.78 C HEALY G NO. {8795 4- INVERT AT SEPTIC TANK (OUT) 16_53 D o - "o� 4- INVERT AT DIST. BOX (IN) 16_50 E �`rS QFC/STERE�JpJ� 4- INVERT AT DIST. BOX (OUT) 16_33 F NAC LAND S n ELEVATIONS AT LEACHING FACILITY: V> / 4" INV. AT LEACHING CHAMBERS 16_20 G (BRKOUT 17.2) BOTTOM OF LEACHING CHAMBERS 14,20 H ESTIMATED SEASONAL HIGH GROUNDWATER 9_00 J TYPICAL SYSTEM PROFILE NOT TO SCALE SEPTIC TANK NOTE: MAGNETIC REFLECTIVE TAPE SHALL BE PROVIDED IN THE TRENCH OVER ALL PVC PIPING 4' SCH. 40 PVC L=211 IN. S=0.017 FIRST PIPE LENGTH TO BE SET LEVEL FOR MIN. 2' FINISH GRADE EL 18.0-18.6± 5.2' SEPARATION J 1 EST. HIGH GROUNDWATER 28 0 �c S Z Z r N O O Lm 03 Z yy Y Z 0 Y _ � LOCUS MAP NOT TO SCALE VSW OF &%'p 0 G BRIAN G. OZ YERGATIAN CIVIL •0 9No.46208� m¢ Fess /ON AL ENS'\ BRIAN G. YE I N, DATE PROFESSIONAL ENGINEER SEPTIC SYSTEM DESIGN PLAN LOT 2 VIRGINIA STREET IN WEST YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) SITE PLAN DECEMBER 12,2014 NO. DATE DESC. ,. zwuthpHealth �D�eepaBrrtmc hd5/p* C PFJIUy` «'u:ne L°a1c PREPARED FOR: HABITAT FOR HUMANITY, C.C. INC. 411 MAIN STREET, SUITE 6 YARMOUTH PORT, MA 02673 (508) 362-3559 } BSC GROUP 349 Route 28, Unit D W. Yarmouth, Massachusetts 02673, 508 778 8919 © 2014 BSC Group, Inc. SCALE: 1" = 20' 0 10 20 40 Fw FILE: P:\prA4975000\Civil\-Drawings\4975000-SP.dwg DWG. NO: 6187-04 SHEET 1 OF 1 JOB. NO: 4-9750.00