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93.4.18 - Septic System Design (2)DISTRIBUTION BOX "DB -6" (H-20) LOCUS INFORMATION 4 /@ NOT TO SCALE:\� EAS ENT m (6) 5' DIA. CURRENT OWNER: JAMES A. ROBERTSON MIN LOT AREA: 40,000 S.F. / ` EN 8' KNOCKOUTS LIVING TRUST EXISTING LOT AREA: 43,702± S.F. i REMOVABLE COVER 5' TITLE REFERENCE: DEED 21465-9 FEMA FLOOD 85 / FRO ND 4' "r. ' • �PLAN REFERENCE: PLAN 620-27 ZONE DISTRICT: "C" DATED 6/17/86 :• PANEL # 250015 0003 C 11' I '.I I ASSESSORS MAP: 93 PROP. BLD. COVERAGE: 3,200± S.F. (7 %) 500 rAL_CONC.-tEACHING / OO 24" I I I PARCEL: -4.18 CHAMBER �3" R ZONING DISTRICT: R-40 $A 82 SETBACKS: FRONT 30' 12" DIA. COVER SIDE 20' BRESERVE AREA 3"IT REAR 20' / 42.0'xt2.e�' L BOTTOM ON LEVEL ' STABLE BASE 6" MINIMUM TCH HIGHPOINT IN ROAD / ` 1 3/4' TO 1-1/2' t 24' � NITROGEN SENSITIVE TP �,� fie?_ / MEW EW CRUSHED STONE PLAN VIEW ZONE: ZONE II / / / /3g~'Z �l NOSES / N, 1. CONTRACTOR SHALL INSTALL A SCH. 40 PVC INLET TEE INSIDE THE DISTRIBUTION BOX. PRO ED / '9\ \ CBDH 2. DISTRIBUTION BOX SHALL BE CAPABLE OF WITHSTANDING H-20 LOADING. l / 3 OVERLAY DISTRICTS: O.K.H. ALL PIPE CONNECTIONS AND CONCRETE CONSTRUCTION SHALL BE WATERTIGHT. / HED � N H 4. FIRST TWO FEET OF PIPES OUT OF DISTRIBUTION BOX SHALL BE LAID LEVEL E 5. FILL ALL UNUSED KNOCKOUTS WITH MORTAR. / OT i(I 797 O x 7g/4^� \ 00 6. CONCRETE COVER SHALL BE SET WITHIN 6 INCHES OF FINISHED GRADE. LOT `i 7 A VARIANCES REQUESTED LOT 15 TITLE 5: NONE TOWN OF YARMOUTH: / i \ TO ALLOW THE TOP OF FOUNDATION TO BE 1' BELOW THE HIGH POINT IN ROAD IN LIEU OF 2' ABOVE. 1,500 GALLON SEPTIC TANK %H-10) (BENCHMARK TAG BOLT ON HYDRANT. ELEV=84.70 ASS CONCRETE BOUND WITH DRILLHOLE FOUND AND HELD (CBDH) NOT TO SCALE / PROPOSED / U) X00 CD .1 OX " J \ C&/ O / \ \ ,� 79.\ m \ S \ CBDH PROPO x 81. \ (/ � 500 SN TAN s\ \ \ < Ire^ B I I \ CBDH \ m V, x-_87 TP# LO ' PO T �_ L O I ` 1 x 81.4 ` ELE 72.8 \ ss Z W� 0' 702± .F. j I i - 76, i m 1 NOTES MIN. 20' DIA. COVER, TYP. `ro O O 1 -77 ` \ 1. SEPTIC TANK SHALL BE STEEL REINFORCED CONCRETE. RAISE (2) TO WITHIN 6' OF FlN13HE� �3� ' 1 _ W 2. SEPTIC TANK SHALL BE CAPABLE OF WITHSTANDING H-20 GRADE USING SEWER BRICK AND W LOADING. MORTAR AS NECESSARY \ , 3. ALL PIPE CONNECTIONS AND CONCRETE CONSTRUCTION D PROP. PROPOSED W SHALL BE WATERTIGHT. 6" MAX 0 OOM\ 4. TEES SHALL BE SCH. 40 PVC AND SHALL BE LOCATED 1 1 EL=8� 1 -- ZWELU 1 WITHIN 12" OF TANK WALL AND ACCESSIBLE FROM TANK \\ -BASE_ 75. COVER. I \ ` $ \ 5. FILL ALL UNUSED KNOCKOUTS WITH HYDRAULIC CEMENT. 4" 1 82 83FFE.=88400 \ \ \ I _ \ x 81. \ m 10'-0' 10' j ��� 85 \ \ OO 03 ` x 82. \ Ila O D 3 -7 a\ RAINAGE F_ - - - I LIQUID 5,_8. 2 \ \ \ - 78 SEMENT - - - 4'-6' LOCATE DEPTH LOT 16) 90 8 x 8 8 / ko 0 INLET TEE OUTLET TEE � 1 � UNDER COVER CBDH / , 0 5'-8• lO O W/GAS BAFFLE r 3' ROPO D _ - 0 3" L / n 8\ E N LAB 92.2 -----� ° \ II N 6" MINIMUM J PLAN VIEW 3/a' r0 1-1/2' CROSS-SECTION VIEW' 1 I CRUSHED STONE �� \ ROPOSED 1 / DRIVEWAY r' HIGH POINT BITUMINOUS 5:1 SYSTEM PROFILE ELEV=94.1 \ / m NOT TO SCALE 40 PVC PROPOSED STONE WALL L=14 FT.WSTALL-WHEN REQUIRED, .W 6 EL=A S=0.015 I \ ?T 7. p x 81. TOP FOUNDATION FIRST PIPE LENGTH LOT 17 TO BE SET LEVEL 1 EL-82.Ot 4' SCH. 40 PVC FOR MIN. 2' L=14 FT. FINISH GRADE 0 1 rn \ \ : 5=0.02 4" SCH. ao PVC EL= 79.7 - 79.4 SCHEDULE OF ELEVATIONS } LEACHING CHAMBER CRAWLo 0 0 o c o 0 0 0 SPACE I=B G c o 0 0 0 0 0 0 0 o TOP Of OF FOUNDATION 83.00 A 1=D o000000OOO I=C 1=E I=F H 4" INVERT AT BUILDING 77.13 B 1 D SBOXTH JO 9.1' SEPARATION4' INVERT AT SEPTIC TANK (IN) ZS2 $5 C 1 //� CBDH 1,500 GAL.1 4" INVERT AT SEPTIC TANK (OUT) 76.60 D SEPTIC TANK J 1 EST. HIGH GROUNDWATER 4" INVERT AT D -BOX (IN) 76.38 E NO OBSERVED GROUNDWATER / N4IE, 4' INVERT AT D -BOX (OUT) 76.21 F /A� MAGNETIC REFLECTIVE TAPE SHALL BE PROVIDED IN THE TRENCH OVER ALL PVC PIPING. ELEVATIONS AT LEACHING FACILITY: �EASEI / EASEL�ENT 4" INV. AT LEACHING CHAMBERS 76.00 G (BRKOUT 76.8) / @ // CAT H BOTTOM OF LEACHING CHAMBERS 74.20 H BASIN \ 5.10 CATCH, \ ESTIMATED SEASONAL HIGH GROUNDWATER 6 J \ BASINV9 NOT TO SCALE TEST PIT TP -1 GRD. EL 75.1 SHGW EL 65.1 EL 74.4 EL 71.5 EL 65.1 A / LOAMY SAND / 10YR 3/1 B / / LOAMY SAND j 10YR 5/6 Cl MEDIUM SAND 10YR 6/4 20% BOULDERS NO G.WATER S. EL 81.2 44' EL 78.7 120" EL 68.7 TEST PIT TP -2 GRD. EL 81.7 SHGW EL A LOAMY SAND 10YR 3/1 / B X / LOAMY SAND / 10YR 5/6 Cl MEDIUM SAND 10YR 6/4 10% BOULDERS NO G.WATER 6' EL 79.5 36' EL 77.1 68" 156' EL 69.6 TEST PIT TP -3 GRD. EL 79.6 SHGW EL AMY VON HONE LOAMY SAND j tOYR 3/1 / jB / / LOAMY SAND 10YR 5/6 % Cl MEDIUM SAND tOYR 6/4 10% BOULDERS NO G.WATER 6' EL 78.9 30' EL 76.9 120' EL 69.4 TEST PIT TP -4 GRD. EL 79.4 SHGW EL A LOAMY SAND 10YR 3/1 / j / B j / / LOAMY SAND / tOYR 5/6 Cl MEDIUM SAND 10YR 6/4 10% BOULDERS NO G.WATER LEGEND 6' UNSUITABLE MATERIALS (TO BE REMOVED) 30" PERCOLATION TEST RANGE ESTIMATED SEASONAL HIGH GROUNDWATER OBSERVED GROUNDWATER 120' ONSITE SOIL EVALUATION DATE: SEPTEMBER 4, 2013 TEST BY: BSC GROUP, INC. WITNESSED BY. AMY VON HONE LICENSED SOIL EVALUATOR: KIERAN J. HEALY, PLS SE PERCOLATION RATE: < 2 MINS./INCH SOIL CLASS: CLASS 1 LT.A.R.: 0.74 GPD/S.F. SEASONAL HIGH GROUNDWATER ADJUSTMENT DEPTH TO BOTTOM OF TH#1 10.0 NOT TO SCALE CATCH 9ASIN 1-1/2' TAPER I / CBDH 5' DIA. KNOCKOUT (TYP.) GENERAL NOTES 1. THIS PLAN IN ONLY INTENDED FOR THE DESIGN AND CONSTRUCTION OF THE DWELLING & SEWAGE DISPOSAL FACILITIES. 2. AU. CONSTRUCTION METHODS AND MATERIALS SHALL CONFORM TO 310 CMR 15.000 AND BARNSTABLE BOARD OF HEALTH REGULATIONS. 3. THERE ARE NO KNOWN OR PROPOSED PRIVATE WELLS LOCATED WITHIN 150 FEET 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 {W SIEVE SHALL BE PEF'FORMED 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 WERE 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 UTILITY COMPANIES, AND SHALL COMPLETE THE PROPOSED WORK WITHOUT ANY INTERRUPTIONS 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 PRCPERTY IS NOT ALLOWED PER 310 CMR 15.240(4). DESIGN CALCULATIONS DESIGN _LOW 4 BEDROOMS 0 110 GPD/BEDROOM = 440 GPD REQUIRED SEPTIC TANK 440 GPD X 200% _ 580 GALLONS USE 1,500 GALLON SEPTIC TANK SIZE QE-_ REQUIRED LEACHING FACILITY DESIGN PERC. RATE: <2 MIN/INCH LONG TERM APPL. RATE: 0.74 GPD/SF 440 GFD = 0.74 GPD/SF = 595 SF SIZE OF LEACHING FACILITY PROVIDED USE (4) 500 GALLON CONCRETE LEACHING CHAMBERS IN TRENCH CONFIGURATION WITH 4' STONE SURROUNDING. BOTTOM AREA: 42' X 12.83' = 538.8 S.F. SIDEWALL AREA: 2 X (2 X (42' + 12.83')) = 219.3 S.F. EFFECTIVE LEACHING AREA = 758 S.F. 758 S.F. X 0.74 GPD/S.F. = 560 GPD (INSTALLED) 560 GPD > 440 GPD (120 GPD RESERVE CAPACITY) 20" ACCESS COVER SET A MAX. OF 3" BELOW FINISH GRADE 12-36' COVERLOAM AND SEED ISTURBED AREAS ,777 11'111111111111111177777 CONC. RISER 12'-10" EMIT VIEW SIDE VIEW NOTES 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 2LAYER OF 1/8' TO 1/2" DOUBLE WASHED STONE ABOVE CROWN OF PIPE (SEE NOTE 3) 3/4' TO 1-1/2' DOUBLE WASHED STONE TO CROWN OF PIPE L o 10 Dr x zl� u! 0 19: Ln �+ n > D mlx Z 1 m i DESERT SAND'z U` HAMSTEAD LANE 1 LOCO-""' SISTERS CIRCLE 6 1 I LOCUS MAP: NOT TO SCALE 1 4/:1,1 PROFESSIONAL ENGINEER � DESIGN �•� �� 1N YARMOUTH PORT MASSACHUSETTS (BARNSTABLE COUNTY) SITE PLAN SEPTEMBER 9, 2013 RFVIqIONq- NO. � � DESC. � � II�1 PREPARED FOR: - YARMOUTH PORT, MA 02675 5 BSC GROUP 349 Route 28, Unit D W. Yarmouth, Massachusetts 02673 508 778 8919 © 2013 BSC Group, Inc. SCALE: 1 " = 20' 0 10 20 40 FEET FILE: CNIL\DRAWINGS\4979000-SP.DWG DWG. NO: 6212-01 SHEER 1 OF 1 JOB. N0: 4-9790.00 12'-10" EMIT VIEW SIDE VIEW NOTES 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 2LAYER OF 1/8' TO 1/2" DOUBLE WASHED STONE ABOVE CROWN OF PIPE (SEE NOTE 3) 3/4' TO 1-1/2' DOUBLE WASHED STONE TO CROWN OF PIPE L o 10 Dr x zl� u! 0 19: Ln �+ n > D mlx Z 1 m i DESERT SAND'z U` HAMSTEAD LANE 1 LOCO-""' SISTERS CIRCLE 6 1 I LOCUS MAP: NOT TO SCALE 1 BRIAN G. YERGATIAN DATE PROFESSIONAL ENGINEER SEPTIC SYSTEM DESIGN 94 SISTERS CIRCLE 1N YARMOUTH PORT MASSACHUSETTS (BARNSTABLE COUNTY) SITE PLAN SEPTEMBER 9, 2013 RFVIqIONq- NO. DATE DESC. PREPARED FOR: SUNFLOWER SCHOOL YARMOUTH PORT, MA 02675 5 BSC GROUP 349 Route 28, Unit D W. Yarmouth, Massachusetts 02673 508 778 8919 © 2013 BSC Group, Inc. SCALE: 1 " = 20' 0 10 20 40 FEET FILE: CNIL\DRAWINGS\4979000-SP.DWG DWG. NO: 6212-01 SHEER 1 OF 1 JOB. N0: 4-9790.00