HomeMy WebLinkAboutEngineer Plan - Updated Perc TestN
MASS COORDINATE SYSTEM
MAINLAND ZONE MERIDIAN
DETERMINED USING A
CARLSON BRx7 GPS RTK UNIT
COLLECTION DATE 09/27/2023
W I E
S
#164 ROUTE 28
MAP 37 PARCEL 82.1.1
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#18 TOWN BROOK AVENUE Yarmouth . th Department
MAP 37 PARCEL 89 gOV ED
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#17 WOODBINE AVENUE
MAP 37 PARCEL 95
CONCRETE `
WALL REMNANTS
(TO BE REMOVED)
H OF k'A4\
�o DONALD F.
BRACKEN JR.
No. 37071
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LA��0 �J�P.�` �j;J / o BRACKEN, JR.
i -L�i`PFp 0 l QQ`&PAY ���,, / / / j O/ 2 C)Q No.' 58438 Cl)
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N '�� ��, O• 0 yy,r PROPOSED INSPECTION 9°�ESS\o�P
// JI PORT (TYP.) 9N0 SURVE
S
� QO<
C
24x2
PR. 1,500 GALLON
SEPTIC TANK
PR. D-BOX
oy}// STONE LEACH TRENCH CROSS - SECTION
PROPOSED 3-BEDROOM NOT TO SCALE
4" SCH. 40 PVC INSPECTION PORT
SOIL ABSORPTION SYSTEM (PERFORATED WITHIN TRENCH)
SCREW CAP WITHIN 3" OF F.G.
(1 PER TRENCH)
TP
/ OO
#11 WOODBINE AVENUE FESTABLISH VEGETATIVE COVER
khk MAP 37PARCEL 93
++`+`�`++++<++12' MIN+to + `a++` +'+ + ,*+ + + + + + + .�+�++
/ 5 i NATIVE BACKFILL+ + + +++++ ++ +++ +_ t+
i +++`+++++++'+}+36"+� + +RL1ER`FAERIC +y.+.O +
VER TRENCH
PROPOSED 5' OVERDIG ------
i
x (SEE EXCAVATION NOTE) R
. 1 4 • SCH. `40
PERFORATED
9 WOODBINE AVENUE ; , p . z ...... :
# i ':...,:.'....;..,5. dP .. 'PVC PIPE.: ;.. .
MAP 37 PARCEL 92 3 4" TO 1 1 2'
(VACANT) >. : l5 .' ` :': :,' D/OUBLE WASHED STONE
PLAN SCALE
0 4 8 12 16 20 30 40 60
1 inch = 20 feet
FILL`' MATERIAL PER' ; , ... ; . _ .:.. •o�� `.'��l
310 CMR 15.255`OR .R
"%APPROVED, NATIVE
BACKFILL. MATERIAL"
05'
OVERDIG PRIMARY OVERDIG
24' DIA. CAST IRON
= 10' MIN SECURABLE ACCESS
COVER TO GRADE
F.G. =25.8t (MAIN HOUSE (WATERTIGHT)
MAIN HOUSE T.O.F.=26.6 F.G=25.3t(ACCESSORY APARTMENT)
RISERS
ACCESSORY TOY .= 26.0f WITHIN 6' F.G.= 24.9E
APARTMENT RISER RISER RISER
(MAIN HOUSE llt LF) 12' MIN.
(ACCESSORY APARTMENT 80t LF) TOP 36' MAX
4" SCH40 PVC PIPE 23.9E
S=2.00% MIN. _LIQUID LEVEL_ , _
= 5 10" MIN. '
INV.= 23.00 (MAIN HOUSE) INV.22.7
INV.= 24.30 (ACCESSORY APARTMENT) q, =INV22.50
NOTES
(1) ALL SYSTEM COMPONENTS TO BE MARKED
WITH MAGNETIC MARKING TAPE.
(2) ALL SYSTEM COMPONENTS WITHIN 10
FEET OF FOUNDATION ARE TO BE
INSTALLED BY A LICENSED PLUMBER.
(3) ALL SYSTEM COMPONENTS ARE TO BE
WITHIN 36" OF FINISHED GRADE, UNLESS
OTHERWISE NOTED.
DESIGN CALCULATIONS
SOIL TEXTURAL CLASS: CLASS I
PERC. RATE: < 2 MINUTES/INCH
NO. OF BEDROOMS: 3
DESIGN FLOW REQUIRED: 330 GPD
SEPTIC TANK REQUIRED: 1,500 GALLONS
SEPTIC TANK PROVIDED: 1,500 GALLONS
PRIMARY LEACHING SYSTEM: RESERVE LEACHING SYSTEM:
(1) STONE LEACHING TRENCH (4) LC-6 CONCRETE LEACHING CHAMBERS IN
3' WIDE x 64' LONG x 2' DEEP AN (10') WIDE x (30') LONG STONE BED
WITH 12 INCHES OF STONE BELOW CHAMBERS
EFFECTIVE LEACHING: EFFECTIVE LEACHING:
7 SF/LF x 64 LF = 448 SF 10' WIDE x 32 LONG x 29' BELOW INVERT
LOADING RATE = 0.74 GPD/SF BOTTOM AREA= 300 S.F.
FLOW PROVIDED: 332 GPD > 330 GPD SIDEWALL AREA= 160 S.F.
TOTAL= 460 S.F.
LOADING RATE = 0.74 GPD/SF
FLOW PROVIDED: 340 GPD > 330 GPD
SOIL LOGS
TP NO. 1
TP NO. 2
GRD. EL 24.6
GIRD. EL 23.4
GW. EL NONE TO 14.6
GW. EL NONE TO 13.4
0" 24.6
0.-23.4
SAND
LOAMY
a
16"
1OYR 3/3
,8
22.1
B
LOAMY SAND
W
> Q
28"
toYR s/s
w w
21.1
CLEAN
FILL
MEDIUM TO
0:
COARSE SAND
0
40"
2.5Y 7
20.1
Ix
67"
C1
MEDIUM SAND
2.5Y 6/6
19.0
C2
COARSE SAND
2.5Y 7/3
120" ' ' 14.6 120" I ' 13.4
NO WATER FOUND NO WATER FOUND
NO REDOX FOUND NO REDOX FOUND
DATE PERFORMED: NOVEMBER 30, 2023
SOIL EVALUATOR: DONALD F. BRACKEN, JR., PE
WITNESSED BY. BARRY LEWIS, ASST. HEALTH DIRECTOR
PERC. RATE: < 2 MPI
SOIL CLASS: CLASS 1
MAX.I GROUND WATER ELEV.: NONE TO 13.4E
METHOD OF DETERMINATION: NO WATER OR REDOX FOUND
(SEE SOIL REPORT FOR MORE DETAILED DESCRIPTION)
EXCAVATION NOTE:
THIS SYSTEM REQUIRES THE EXCAVATION & REMOVAL OF ALL UNSUITABLE SOIL WITHIN 5'
OF THE SOIL ABSORPTION SYSTEM. SOIL SHALL BE EXCAVATED TO THE EXISTING C1 SAND
LAYER, APPROXIMATELY 28" TO 68". ENGINEER TO CONFIRM SOIL DEPTH PRIOR TO
INSTALLATION. THE EXCAVATION SHALL BE INSPECTED BY THE DESIGN ENGINEER PRIOR TO
BACKFILLING. SOIL IS TO BE REPLACED WITH SAND CONFORMING TO 310 CMR 15.255,
CONSTRUCTION IN FILL CONTRACTOR IS RESPONSIBLE TO PROVIDE ENGINEER WITH SAND
SAMPLE FOR SIEVE ANALYSIS, UPON REQUEST.
20' MIN CELLAR WALL
VENT MATH
15' MIN CRAWLSPACE
M.
CHARCOAL FILTER
z_
J
IRRIGATION BOX COVER
10' MIN.
4' SCH 40 PVC INSPECTION PORT
D-BOX COVER
(PERFORATED WITHIN STONE)
°-
WITHIN 6" OF GRADE
24.6E
SCREW ON CAP WITHIN 3" OF F.G.
MIN. 2
ir
a.
F.G.
F.G.=24.9t to 24.6t
S.A.S.LOPE
12" MIN.
36" MAX.
FIRST 2' SET LEVEL
TOP
4' SCH. 40 PVC
(2t LF)
4" SCH. 40 P.V.C.
22.32
FILTER FABRIC
TOP
S=1.00% MIN.
22.00
(20t LF) INV.= 22.01
S=1.00% MIN.
I I
INV. = 21.50
a -fo.Qa
j.II
`
INV.= 21.84
6' COMPACTED STONE BOT. =19.50
BASE ON COMPACTED INV,=21.82 4" PERF. SCH. 40 P.V.C. BOTTOM SET LEVEL
a.a o.a a.,o�a o., o,a INSTALL A100 ZABEL FILTER SUBGRADE (TYP.)
(SEE MANF. INST.) PROPOSED DISTRIBUTION BOX " " S=0.5%
6" COMPACTED STONE PRE -CAST WATERTIGHT 3/4.TO 1 1 /2 DOUBLE 5' MIN.
BASE ON COMPACTED PROPOSED 1,500 GALLON " WASHED STONE
6 MIN. SUMP
SUBGRADE (TYP.) PRECAST SEPTIC TANK - WATERTIGHT 12" MAX. DEPTH 64'
(H-10 LOADING)
TANK TO BE EMBOSSED WITH SYSTEM PROFILE (H-10 LOADING) NO GROUND WATER
PROPOSED SOIL ABSORPTION SYSTEM TO GROUND
13.4E
ASTM STANDARD C 1227-93 SEAL NOT TO SCALE ACME-SHOREY ITEM#DB5 (1) - STONE TRENCH (3' WIDE x 64' LONG x 2' DEEP)
OR EQUAL
Notes
1. BENCHMARK: ELEVATION = 23.56 (NAVD88)
TOP OF CONCRETE BOUND DISK
2. ALL CONSTRUCTION METHODS AND MATERIALS TO
CONFORM TO TITLE 5 AND THE TOWN OF YARMOUTH
BOARD OF HEALTH REGULATIONS.
3. ALL SYSTEM COMPONENTS SHALL BE MARKED WITH
MAGNETIC TAPE OR A COMPARABLE MEANS IN ORDER
TO LOCATE THEM ONCE BURIED.
4. NO FIELD MODIFICATION TO THE SYSTEM SHALL BE
MADE WITHOUT PRIOR WRITTEN APPROVAL OF THE
DESIGN ENGINEER AND BOARD OF HEALTH.
5. ALL JOINTS AND COVERS TO BE WATERTIGHT.
6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR
VERIFYING THE ACTUAL LOCATION OF ANY EXISTING
UTILITIES.
7. A CERTIFICATE OF COMPLIANCE MUST BE OBTAINED
PRIOR TO BACKFILLING SYSTEM.
8. OWNER/APPLICANT
CHRISTOPHER M. ROBERTS and LINDA M. ROBERTS
Trustees of 12 TOWN BROOK ROAD REALTY TRUST
13 MILESTONE CROSSING
NANTUCKET, MA 02554
9. DEED REFERENCE: Deed Bk: 35658 Pg:317
10. PLAN REFERENCE: Plan Bk: 16 Pg: 75
(Lots 8, 9, & PORTION OF 10)
11. THE DESIGN IS INTENDED TO MEET TITLE 5 AND OTHER
APPLICABLE REQUIREMENTS. THIS PLAN DOES NOT
GUARANTEE THAT THE SYSTEM WILL BE INSTALLED AS
DESIGNED, NOR DOES THIS PLAN GUARANTEE THE
OPERATION OF THE SYSTEM.
12. THIS SYSTEM IS NOT DESIGNED NOR INTENDED FOR USE
WITH A GARBAGE GRINDER.
13. THE SYSTEM OWNER SHALL BE RESPONSIBLE TO PUMP
THE SEPTIC TANK AT LEAST ONCE EVERY THREE
YEARS.
14. LOCUS DOES FALL WITHIN A DESIGNATED OR POTENTIAL
NATURAL RESOURCE AREA: NITROGEN SENSITIVE AREAS
(NSA) FOR LEWIS BAY & HALLS CREEK.
15. LOCUS DOES NOT FALL WITHIN A ZONE II WELLHEAD
PROTECTION AREA.
16. LOCUS DOES NOT FALL WITHIN AN NHESP ESTIMATED
HABITAT OF RARE WILDLIFE and A PRIORITY HABITAT
OF RARE SPECIES.
17. LOCUS DOES NOT FALL WITHIN A SPECIAL FLOOD
HAZARD ZONE PER FIRM MAP 25001C-0567-J, dated
7/16/14.
18. CONTRACTOR TO COORDINATE PLACEMENT OF VENT
WITH THE HOMEOWNER PRI
JN�IALJ�#J1C]N
DEC 1 12023
HEALTH DEPT.
Prepared By.
RACKEN
49 HERRING POND ROAD 19 OLD SOUTH ROAD
BUZZARDS BAY, MA 02532 NANTUCKET, MA 02554
(tel) 608.833.0070 (tel) 508.326.0044
(fax) 608.833.2282 www.brackeneng.com
PROPOSED SUBSURFACE
SEWAGE DISPOSAL SYSTEM
IN WEST YARMOUTH, MASSACHUSETTS
Prepared For:
12 TOWN BROOK ROAD REALTY TRUST
#12 TOWN BROOK ROAD
MAP 37 PARCEL 90
1 12/07/23 1 REVISE TEST PITS TO NEW SOIL INFORMATION ERC
No. Date I Revision Description By
Date: Drawn: Checked: Sheet:
NOVEMBER 10, 2023 ERC/BEI1DFB/AMGj 1 of 1