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HomeMy WebLinkAbout22.278 - Septic System UpgradeSOIL TEST PIT DATA NOT TO SCALE TEST PR TP -1 GRD. EL 78.3 SHGW EL 69.1 EL 77.3 EL 75.5 EL 74.1 EL 73.3 EL 69.1 EL 65.8 EL 653 A SANDY LOAM tOYR 2/2 B MEDIUM SAND 10YR 5/6 C-1 MED/FINE SAND 2.5Y 6/6 C-2 _ MED/FINE SAND 10YR 6/4 OBS-G.W 12" EL 77.0 TEST PR TP -2 GRD. EL 78.2 SHGW EL N/A A SANDY LOAM tOYR 2/2 B MEDIUM SAND 10YR 5/6 34" EL 75.1 C-1 MED/FINE SAND 50" 2.5Y 6/6 60" EL 73.0 110" C-2 MED/FINE SAND NO 1OYR 6/4 150" GROUNDWATER 156" E,. 68.2 OBSERVED LEGEND UNSUITABLE v- OBSERVED MATERIALS - GROUNDWATER (TO BE REMOVED) PERCOLATION v ESTIMATED TEST RANGE SEASONAL HIGH GROUNDWATER DISTRIBUTION BOX DETAIL iH-1 NOT TO SCALE REMOVABLE r 6' MAX. HDPE RISER 2' WALLS r- 9-1/2" 3. 15" 37'. 63" 120' (5) 5' DIA. 13" KNOCKOUTS ,I �• 11-1/2"IL • a L 2. - BOTTOM ONLEVEL 6" MINIMUM STABLE BASE PLAN VIEW TISEG ON M W 3/4" TO 1-1/2" NOTES: CRUSHED STONE 1. PROVIDE INLET TEE OR BAFFLE WHERE SLOPE OF PIPE EXCEEDS 0.08 F./FT OR IN PUMPED SYSTEM. 2. FIRST TWO FEET OF PIPE OUT OF DIST. BOX TO BE LAID LEVEL- 3. EVEL3. ALL PIPE CONNECTIONS AND CONCRETE CONSTRUCTION SHALL BE WATERTIGHT. 4. FILL ALL UNUSED KNOCKOUTS WITH MORTAR. 5. CONCRETE COVER SHALL BE RAISED TO WITHIN 6 INCHES OF FINISHED GRADE DESIGN CALCULATIONS DESIGN FLOW 4 BEDROOMS A 110 GPD/BEDROOM = 440 GPD REQUIRED SEPTIC TANK 440 GPD X 200% = 880 GALLONS USE 11,500 GALLON SEPTIC TANK SIZE OF REQUIRED LEACHING FACILITY DESIGN PERC. RATE: <2 MIN/INCH LONG (TERM APPL RATE: 0.74 GPD/SF 440 GPD + 0.74 GPD/SF = 596 SF SIZE OF LEACHING FACILITY PROVIDED USE (3) 500 GALLON CONCRETE LEACHING CHAMBERS IN TRENCH CONFIGURATION WITH 4' STONE ON ENDS AND 2.6' STONE ON SIDES. BOTTOM AREA: 40' X 10' = 400 S.F. SIDEWALL AREA: 2 X (2 X (40' + 10')) = 200 S.F. EFFECTIVE LEACHING AREA = 600 S.F. 600 S.F. X 0.74 GPD/S.F, = 444 GPD (INSTALLED CAPACITY) 444 GPD > 440 GPD (4 GPD RESERVE CAPACITY PROVIDED) SIZE OF RESERVE AREA PROVIDED BOTTOM AREA: 35' X 7' = 245 S.F. + 23' X 6' - 138 S.F. SIDEWALL AREA- 2 X 2 (35' + 7') - 168 S.F. + 1 X 2 X (23 + 6) s 58 S.F. EFFECTIVE LEACHING AREA - 667 S.F. 609 S.F X 0.74 GPD/S.F. - 450 GPD (RESERVE CAPACITY) NOT TO SCALE NOTES: 1. SEPTIC TANK SHALL BE STEEL REINFORCED CONCRETE. 2. SEPTIC TANK SHALL BE CAPABLE OF WITHSTANDING H-10 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 CEMENT. 10-s" 10'-0" - I1_ �:1►�l�irirj ONSITE SOIL_ EVALUATION DATE: AUGUST 7, 2014 TEST BY: BSC GROUP, INC. WITNESSED BY: AMY VON HONE, R.&, 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. HIGH GROUNDWATER COMPUTATION (BASED ON TP 1) DEPTH TO WATER 12,5' INDEX WELL MIW-29 WATER LEVEL RANGE ZONE B CURRENT DEPTHONDEX WELL(7/14) 9.0' WATER LEVEL ADJUSTMENT 3.3' DEPTH TO HIGH WATER 9.2' 16 1 MASSACHUSETTS AVE..7 NOT TO SCALE 5" DIA. KNOCKOUT (TYP.) 20" ACCESS COVER TO WITHIN 3 INCHES OF FINISH GRADE LOAM AND SEED ALL DISTURBED AREAS 1-1/2" TAPER 71 / M 0 m 12-36' COVER C] O m O O O � HDPE RISER D C] D D C] 1 LAYER 1/8- TO 00 00 000 OD C]O 0 x 1/2" DOUBLELE WASHED STONE ABOVE CROWN MIZI 34"O , OF PIPE 0C] OO O0O =1 OO EFFECTIVE O O O C7 O DEPTH / O o o O O 3/4' TO 1-1/2" DOUBLE WASHED STONE TO CROWN 8'-6" OF PIPE 4'-10" FRONT VIEW to' -O" 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. PANEL #25001-0588) DATED 7/16/2014 79.5 X\G � \ \ GENERAL NOTES \ \ 1. THIS PLAN IS ONLY INTENDED FOR THE PERMITTING AND CONSTRUCTION OF THE c, \ SEWAGE DISPOSAL FACILITIES AND THE NEW BUILDING Tpr pIPN f0ag 2 \ \ \ UAfp ," 8 88, �\ OUNpf� � D LOCUS INFORMATION CURRENT OWNER: MICHAEL A. FOREMAN 77.20 CINDY LEE FOREMAN TITLE REFERENCE: BOOK 18202, PAGE 277 PLAN REFERENCE: BOOK 25, PAGE 49 ASSESSORS MAP: 22 PARCELS: 278 ZONING DISTRICT: R-25 SETBACKS: FRONT 30'** REDUCED TO 19.8' ELEVATIONS AT LEACHING FACILITY: SIDE 15' REAR 20' MINIMUM LOT SIZE: 25,000± S.F. EXISTING LOT SIZE: 7,080± S.F. NITROGEN SENSITIVE ESTIMATED SEASONAL HIGH GROUNDWATER ZONE: NOT A ZONE II FEMA FLOOD ZONE DISTRICT: ZONE X, AS DEPICTED ON F.I.R.M. COMMUNITY kaca(fh`LEepal-rn,.._t , kP Name Date / LOT 261 fll�� 500 GALLON CONCRETE LEACHING CHAMBER TYPICAL LOT 260 �° REMOVE V TREE 4L EXISTING SEPTIC COMPONENTS TO BE PUMPED AND REMOVED FROM THE SITE IN ACCORDANCE WITH TITLE 5. PROPOSED 10' x 40' LEACHING SA.S. V OVERDIG TO G1 HORIZON RAISE AT LEAST ONE EXISTING COVER \ \ TO WITHIN 6' OF FINISHED GRADE \ THE RISER SHALL BE 18" HDPE PIPE \ _ r GDNC. COVER LOT 259 \ `- (PORTION OF) . � 4' e 10" 3' TT 4' MIN. !L LIQUID 74'-6" LOCATE DEPTH INLET TEE OUTLET TEE UNDER COVER W/GAS BAFFLE 3. �. 3' LROSS-SECTION VIEW LOT 259 (PORTION OF) 0w/oF•gL 2. ALL CONSTRUCTION METHODS AND MATERIALS SHALL CONFORM TO 310 CMR 15.000 79.0 �\ \ 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 OVERDfG IS SPECIFIED, REMOVE ALL TOPSOIL, SUBSOIL AND OTHER UNSUITABLE YX 79.5 MATERIALS. HOS% � 5. IF AN OVERDIG IS SPECIFIED, REPLACE ALL EXCAVATED MATERIALS WITHIN THE LIMIT OF EXCAVATION WITH CLEAN GRANULAR SAND, FREE FROM ORGANIC MATERIAL AND X 79.0 DELETRIOUS SUBSTANCES. MIXTURES AND LAYERS OF DIFFERENT CLASSES OF SOIL I�� \ SHALL NOT BE USED. FILL SHALL NOT CONTAIN ANY MATERIAL LARGER THAN 2 I W\\INCHES. A SIEVE ANALYSIS USING A #4 SIEVE SHALL BE PERFORMED ON A \ \ REPRESENTATIVE SAMPLE OF FILL UP TO 45% BY WEIGHT MAY BE RETAINED ON THE f \ 1/4 SIEVE. SUCH ANALYSES MUST DEMONSTRATE THAT THE MATERIAL MEETS EACH OF THE FOLLOWING SPECIFICATIONS: 100% MUST PASS 1}14 SIEVE 10% MUST PASS #50 SIEVE 0-20% MUST PASS #100 SIEVE I 0-5% MUST PASS 1200 SIEVE / 6. EXISTING UTILITIES WHERE SHOWN ON THE PLANS ARE APPROXIMATE. THE ENGINEER / DOES NOT GUARANTEE THEIR ACCURACY OR THAT ALL SUBSURFACE STRUCTURES ARE G / SHOWN. CONTRACTOR SHALL VERIFY THE SIZE, LOCA71ON AND ELEVATION OF INVERTS 4Y 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. v 7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROPERLY COORDINATING THE N PROPOSED CONSTRUCTION ACTIVITIES WITH DIG -SAFE AND THE APPLICABLE UTILITY 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 n� 15.240(4). PROPOSED BULKHEAD TO BE PRECAST CONCRETE AND SLOPED TO FOUNDATION PROPOSED 1500 GALLON SEPTIC TANK LOT 263 PROPOSED TX 35'&6'X23' RESERVE AREA NOT TO SCALE SEPTIC TANK NOTE: MAGNETIC REFLECTIVE TAPE SHALL BE PROVIDED IN THE TRENCH OVER ALL PVC PIPING TOP OF FOUNDATION 81.50 A 4' INVERT AT BUILDING 77.20 B 4' INVERT AT SEPTIC TANK (IN) 76.95 C 4" INVERT AT SEPTIC TANK (OUT) 76.70 D 4' INVERT AT DIST. BOX (IN) 76.50 E 4' INVERT AT DIST. BOX (OUT) 76.33 F ELEVATIONS AT LEACHING FACILITY: 4" INV. AT LEACHING CHAMBERS 76.20 G (BRKOUT 77.0) BOTTOM OF LEACHING CHAMBERS 74.20 H ESTIMATED SEASONAL HIGH GROUNDWATER 69.10 J 4" SCH. 40 PVC L-15 FT. S=0.013 FIRST PIPE LENGTH TO BE SET LEVEL FOR MIN. FINISH GRADE 13'®S=0.011 /_ EL 78-78.3± 5.1' SEPARATION J I EST. HIGH GROUNDWATER 5' OVER DIG TO C-1 HORIZON =WfI kSILVER LEAF U N EMERALD AVE. a V) m LOCUS MAP NOT TO SCALE OF �y to RRI� N �o YERGATIAN � CIVIL �' � ,9 No.46208 C C Ess/ONALE�G BRIAR -10r YERGA DATE PROFESSIONAL ENGINEER SEPTIC SYSTEM UPGRADE 5 EMERALD AVENUE IN WEST YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) SITE PLAN OCTOBER 10, 2014 N0. DATE DESC. kaca(fh`LEepal-rn,.._t , kP Name Date / PREPARED FOR: MICHAEL FOREMAN 8 VALE TERRACE SOUTHBOROUGH, MA 01772 (774) 249-2302 { BSC GluUp 349 Route 28, Unit D W. Yarmouth, Massachusetts 02673 508 778 8919 © 2014 BSC Group, Inc. SCALE: 1" = 10' 0 5 10 20 rm FILE: P.- Pry' 4985900\Civil\-Drawings\49859DO-SEP.dwg DWG. N0: 6262-02 SHEET 1 OF 1 JOB. NO: 4-9859.00