HomeMy WebLinkAboutEngineer Certification Letter with As-Built Plan Nashob�Engineeru-�g Associates
6 Bea�rer Braok Road
Littl�ton,MA OS4G0
97fi.501.30Q�
johnffieldCaaol.cam
9-2-16
� � �
RE:10GQ RT2�YARMOUTH McDC�NALDS
REF PLaN:SDS ASBUILT PLAN 106Q YARMOUTH, PLAN 2016-Q09
To�vn c�f Yarmauth
Board of Health
Ta whom it rnay concern,
In aerordance with 31U CMR 1�.000 anc.-i t11e town of Yarmouth Board of�Iealth Regulations,I
hereby certify,to the best of my knowledge,information and belief, that the septic system
shoum on the pian by Nashava Engineering entitled, "Design of Subsurface Sewage Disposal
System in Yarmouth" fnr McDonalds USA,plan 2Q16-(}(}9,Iast revised 4/2J16, appxoved by the
Yarmouth 13aard af He�lt11 an 5J16/16 has been sixbstantially constructed in compliance with
s�id plazl and regualtions. �
Accolnpanying ttlis certification lett�r, ple�se also find the as-built plan entitled "As-Built P1an
af SuUstzxf�ce S�w�ge Disposal Systam in Yarmau#h" for McDonalds USA,plan 2016-009,last ,
revised 9-1-16.
Regards,
►�"►'�•
� ����1H 0�A�tq���� .
vi �'�' JOHN F. �'�
� �IE�{7 �
,�; o CIVIL �
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john F. �zeic�, .P.E.
4
Principal
Civil Engineering 6 Beaver Broak Littleton MA 0146Q
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SEPTICSYSTEM PROFILE
PUMP REQUIREMENTS
-A
W,TER
AN[M£
ELEVATION HEAD
3.03 FT
DYNAMIC LOSS
5.76 FT
BEST- HEAD
1.5 FT
TDTAL WORK
1228 FT
USE MYEPSV3WHV
D.P.'AT tB Fi
PUMP SETTINGS
(ELEV FROM DATUM, INCHES FROM BOTTOM OF
TANK
9-1-16
LOCA310111
NCHES
WI
MI
PUMP N W (OUCHES)
PUMPRUCHES)
0.38 4 9It8
PUMP
6.64 td tM
PUMPS OFF
et. I95R
6L40 P6
IGt1F �EI-
-A
W,TER
AN[M£
AMP/WL
FFMIFACR 300aS
WIOIH
4010100 FT
1l0p Ff
X�..MM LL VA
6PKIIw FTA.K
WpGI RTA.[
6008
92 iT
Ll FT
1.mFT
M
SLOee001B
TOTALW86NCY cMSEASASCILERGaUh
SL-LUOI
TANK WOYAXCYItTElalrta WATERMY1ACfa1
SLMiw LL
.
STARTOFBEG-, Ex0 RP .E �
Pu
1d
"
NOTES
PUMP CURVE
MYERS V3WHV
PUMP NOTES
PD LATERAL.
( IN FEET) A-100-A80012)MCASE/BALL
DATE INSP. COMMENT
1. STAKE OUT COMPONENTS
1 inch = 20'7=
HOUSING-POLYPROPYIFNE
2. BOTTOM OF EXCAVATION TANK AND LEACHING FAC.
5-27-16
BUSHING PVC „L T4 sw 40 Pw solm
WN
5-31-16
ssP WAVE[
BALL -HDPE
COLOR -GREY '"� TE E
�Iflf .l l-.. �.1)llII (�)IIu:r?SL'I11�S4,TI. :.'k1F0u,d:: LLQ_..
e
nR FAnc
+wren 6x[P oaeLE KA9,ED sravE
w +/.• urza.us
RBIeacw
9-1-16
PROVIDE 3000 GAL SMALL COMPARTMENT (24 HR DETENTION)
I
. s..0 Pas -T , +/.' sa .o 1A E ALs W...+/.' P[nFaAn- s Fra oancR
NNISH GRACE
BED CROSS SECTION
1. PUMPS AND ALARM SHALL BE ACTIVATED BY MERCURY FLOAT
A. BASIS 2 MIN./IN PERCOLATION RATE
2. SWITCHES AS SHOWN (3 FLOATS REQUIRED).
M EFFECTIVE AREA PROVIDED 2640 S.F.
P
2640 S.F. X .74 GPD/S.F.= 1953.6 GPD
AND TIED TO A 3/4' SOHO 40 Pvc PIPE WITH S.S HOSE
POLTLOK A10O EFFLUENT FILTER ELeaW ENCASEB
40 PVc PERF _ cwcxETOEY.
CLEANOUT -DISTAL END
D. TOTAL S0. FT. PROVIDED 2640
OBSERVATION PORT
NO SCALE
H -o -A SWITCH
NO SCALE
SET ON MORTARED CONCRETE BLOCK
4. 88%30X.5 LEACH BED PRESSURE DISTRIBUTION
ACCESS TO GRADE
RING COVER AND RUBBER GASKET
4- CLEANOUT OPEN TO BOTTOM OF STONE
LESARON FOUNDRY LAOSO OR EQUAL NOT ER MTMY eE RE LOCEIEo TO A LESSCCN flNW AAREA
SET ON MORTARED CONCRETE BLOCK
HOT TOP 1/8" DRILL HOLE
IN TOP OF 1 t/4' CLEANOUT
TO THE LEACH FACLiY Au VETHI NT PPE 4 SW 10 PVC
GRADED GRAVEL
VARIANCES REQUIRED
HOT TOP -, . . -" 1 '•'. 4• PERF SDR 35 To EXTEND FROM
NO KNOWN TITLE 5 VARIANCES PROPOSED
VARIANCE REQUEST OF .75' OF ADJUSTMENT
1. FO CE MAN SHALL HAW A CONTINUOUS PITCH.
IF COVERED LESS THAN 24' PROVIDE 2' RIGID INSULATION.
GRADE BOTTOM OF LEACH BED VENT %T DET•1I%
1 1/4' PO LATERAL
VARIANCE REQUEST - SINGLE PUMP DISTRIBUTION PUMP
GRADED GRAVEL WRAP PIPE IN FILTER FABRIC I Y fi �J
IP
FILTER FABRIC INCLUDING BOTTOM. DO N INSTALL rv0T t0 SCALE
CRUSHEO
STONE
POLYETHYLENE, Y PER 21
-
1 1/4- PD LATERAL CAP AT BOTTOM.
LEACH BED
TEST PIT DATA SOIL TESTING
CRUSHED
ATONE
WITNESSED BY :
RATE <2 MPI
LEACH BED
1d
"
NOTES
PUMP CURVE
MYERS V3WHV
DATE TEST PERFORMED:
PUMP NOTES
INSPECTION SCHEDULE DESIGNER
DATE INSP. COMMENT
1. STAKE OUT COMPONENTS
5-9-16
2. BOTTOM OF EXCAVATION TANK AND LEACHING FAC.
5-27-16
ILL IN PL CE
5-31-16
4. SYS7E CO PLETE
3. ALL WORK AND MATERIALS TO CONFORM WITH STATE AND LOCAL
CODES.
5. PUMP TEST
6-1-16
6. FINAL FILL AND GRADE
9-1-16
DATE TEST PERFORMED:
PUMP NOTES
DESIGN CRITERIA
GENERAL:
RESTAURANT USE -(92 SEATS AT 20 GPD/SEAT) 1840 GPD
1. ALL PIPING, CONTROLS k PUMPS SHALL BE APPROVED BY THE
ENGINEER.
1840 GPD.
2. THE MANUFACTURERS LITERATURE SHALL BE SECURELY FASTENED
1. PERCOLATION RATES - - - - (<2MIN./INCH)
TO ABOARD ADJACENT To ALARM.
2. FLOWS: 1840 GPD.
3. ALL WORK AND MATERIALS TO CONFORM WITH STATE AND LOCAL
CODES.
3. SEPTIC TANK REQUIRED. 6000 GAL 2 COMPARTMENT
4. ALL ELECTRIAL WORK AND MATERIALS SHALL BE BY ELECTRICA PERMIT
EXISTING 6000 ALL LARGE COMPARTMENT (75 HR DETENTION)
FILL
PROVIDE 3000 GAL SMALL COMPARTMENT (24 HR DETENTION)
3-42-
FILL
CONTROLS:
6'-120
1. PUMPS AND ALARM SHALL BE ACTIVATED BY MERCURY FLOAT
A. BASIS 2 MIN./IN PERCOLATION RATE
2. SWITCHES AS SHOWN (3 FLOATS REQUIRED).
M EFFECTIVE AREA PROVIDED 2640 S.F.
FLOATS AND PUMP POWER CABLE ARE TO BE SUSPENDED FROM
2640 S.F. X .74 GPD/S.F.= 1953.6 GPD
AND TIED TO A 3/4' SOHO 40 Pvc PIPE WITH S.S HOSE
C. TOTAL GPD PROVIDED FOR 1853
CLAMPS
3 GLOATS SHALL BE READILY ACCESSIBLE FROM HATCH.
D. TOTAL S0. FT. PROVIDED 2640
a CONTROLS AND PUMP r0 BE ON A SEPARATE CIRCUIT WITH
F. SOIL CLASS SAND - CLASS 1
H -o -A SWITCH
G. LONG TERM APPLICATION RATE 0.74 GPD/SF
5. CONTROL PANEL TO BE LOCATED ADJECENT TO THE TANKAGE IN A
NEMA TYPE ENCLOSURE WITH AN AUDIO ALARM.
4. 88%30X.5 LEACH BED PRESSURE DISTRIBUTION
6. THE ALARM IS TO BE ON A SEPARATE CIRCUIT AND A SIGN
10 RM 88 FT LONG 1 1/4" LATERALS
SHOULD BE PLACED NEXT TO IT INDICATING THE SOURCE OF THE
WITH 1/4" PERF 6 FT ON CENTER
ALARM, lHE PUMP INFORMATION, AND THE SUPPLIER.
7. WIRING SHALL BE CONTINUOUS TO THE BUILDING WITH THE USE OF
PERC TESTING
A THERMOPLASTIC UNCTON BOX IN THE PUMP CHAMBER.
VARIANCES REQUIRED
H ls IN UDE. WIRING FOR THE PUMP AND THE FLOATS.
FORCE MAIN:
NO KNOWN TITLE 5 VARIANCES PROPOSED
VARIANCE REQUEST OF .75' OF ADJUSTMENT
1. FO CE MAN SHALL HAW A CONTINUOUS PITCH.
IF COVERED LESS THAN 24' PROVIDE 2' RIGID INSULATION.
INSTEAD OF 2.4' OF ADJUSTMENT
2. FORCE MAN SHALL HAVE 6' BE00 NC IN SANG.
VARIANCE REQUEST - SINGLE PUMP DISTRIBUTION PUMP
3. PIPE SHALL BE HIGH DENSm, HIGH MOLECULAR WEIGHT, 20D PSI
INSTEAD OF DUAL PUMP
POLYETHYLENE, Y PER 21
4. INSTALLATION SHALL BE PER MANUFACTURERS
RECOMMENDATIONS APPROPRIATE FITTINGS AND
TEST PIT DATA SOIL TESTING
.
CEMENT SHALL BE USED INSIDE FiF CHAMBER AND AT THE
MANIFOLD
WITNESSED BY :
RATE <2 MPI
BRUCE MURPHY, DIRECTOR OF HEALTH, YARMOUTH
PUMP CHAMBER:
LOCUS
1. THE CHAMBER SHALL BE A S -EA PRECAST REINFORCED
SOIL EVALUATOR:
CONCRETE 3000 GALLON SEPTIC TANK.
(SHEA TK-3GDCH-20 OR EQUAL)
JOHN FIELD
2. THE TOP SHALL BE MT WITH THREE 20' DIA OPENINGS. WITH
DATE TEST PERFORMED:
1-14-16
DEPTH OF 66" AND REPLACED WITH CLEAN FILL IN ACCORDANCE
TP -1
TP -2
ELEV=12.30
ELEV=11.57
V-4"
HOT TOP
0--4'
HOT TOP
SHOWN ON THIS
3-66-
FILL
3-42-
FILL
6'-120
C S
COURSE SAN.
42-60'
Bw S
FINE SAND
BY: CONTROL PONT ASSOCIATES, INC
2,5W/6
THE DEPARTMENT OF ENVIRONMENTAL PROTECTION AND THAT
10YR5
S
352 TURNPIKE ROAD, SOUTHBOROUGH, MA 01772
"
ANALYSIS
6o-110'
C
2.577/6
COURSE SAND
NO REFUSAL
NO WEEPING
NO REFUSAL
WEEPING96V
ESHGW @102" ELEV ESHGW - 3.79
ESHGW WV ELEV ESHGW = 4.40
PERC TESTING
DATE 1/14/16
DEPTH 74"
PT -2
SOAK
SOAK 1216
12"
12 1231
9" 1235
CONTRACTOR TO VERIFY AND ESTABLISH ADDITIONAL
6" 1237
RATE
RATE <2 MPI
A 24' CAST IRON MEDIUM DUTY FRAME AND COVER TO 6' OF
GRADE TO ALLOW REMOVAL OF THE PUMP.
3. THE CHAMBER SHOULD BE VENTED WA THE BUILDING PLUMBING
SYSTEM .
PIPING:
1. PIPING THROUGH PUMP CHAMBER WALL TO THE MANIFOLD SHALL
BE CONTINUOUS WITH APPROVED JOINTS. PIPING INSIDE THE CHAMBER
TO BE SCHD 80 AND EOUAL TO THE PUMP DISCHARGE.
2. LIFTING 'T' AND UNION SHALL BE READILY ACCESSIBLE FROM
HATCH.
3, PIPING SHALL BE SLEEVED WHERE IT PASSES THROUGH THE
CHAMBER WALL AND BE SECURED WITH RISER CLAMPS
4. DRAIN HOLE TO BE INSTALLED BEYOND THE CHECK VALVE TO
ALLOW DRAIN BACK OF THE FORCE MAN
DISTRIBUTION PUMP :
L THE PUMP SHALL BE NON -CLOG. SUBMERSIBLE SEWAGE PUMP
CAPABLE OF PASSING A 3' DIAMETER SOLID AND STRINGY
MATERIAL.
2. PUMP SHALL BE MADE SPECIALLY FOR PUMPING RAW SEWAGE.
3. PUMP SHALL BE CAPABLE OF PUMPING 50 GPM AGAINST A
TDH OF 20 FEET.
4. PUMP SHALL BE A MYERS 13.1 OR EQUAL.
5. SOL ABSORPTION SYSTEM SHALL BE DOSED
AT A FREQUENCY OF 8 TIMES PER DAY.
RECYCLE PUMP:
I. THE PUMP SHALL BE NON -CLOG. SUBMERSIBLE SEWAGE PUMP
CAPABLE OF PASSING A 2' DIAMETER SOLID AND STRINGY
MATERIAL.
2. PUMP SHALL BE A MYERS ME45 OR EQUAL. FORCE MAIN, 2' SUR 21
3. IF EFFLUENT STRENGTH WARRANTS, RECYCLE SYSTEM SHALL BE DOSED
BY A INTERMATIC OR EQUAL TIMER SWITCH UP TO 12 TIMES DAILY.
HOT TOP, FILL AND B LAYER TO BE REMOVED TO A
DEPTH OF 66" AND REPLACED WITH CLEAN FILL IN ACCORDANCE
T�
SURVEY PLAN REFERENCE:
WITH 310 CMR15.255(3). UNSUITABLE SOIL TO BE REMOVED TO A
DISTANCE OF 5' BEYOND THE LIMITS OF THE SAS.
PROPERTY LINES AND TOPOGRAPHICAL INFORMATION
DRAWING TAKEN FROM A DRAWING ENTITLED
SHOWN ON THIS
' BOUNDARY ANDTOPOGRAPHIC SURVEY
I CERTIFY THAT ON APRIL, 1998 1 HAVE PASSED THE EXAMINATION
DATED: 1/26/16 , SCALE 1-=20'
APPROVED BY
BY: CONTROL PONT ASSOCIATES, INC
THE DEPARTMENT OF ENVIRONMENTAL PROTECTION AND THAT
THE ABOVE
352 TURNPIKE ROAD, SOUTHBOROUGH, MA 01772
"
ANALYSIS
SURVEYOR: GERRY L HOLDRIGHT, PUS
HAS BEEN PERFORMED BY ME CONSISTENT WITH THE REQUIRED
TRAINING,
DEED REFERENCE BK. 6994 P. 293
ASSESSOR'S REFERENCE MAP 50 LOT 101
EXPERTISE
AND EXPERIENCE DESCRIBED IN 310 CMR 15,0111
CONTRACTOR TO VERIFY AND ESTABLISH ADDITIONAL
JOHN FIELD
BENCHMARES ON SITE, PRIOR TO CONSTRUCTION. STREET:
LEGEND
LOCUS
APPLICANT:
ADDRESS:
/C •' ^NyJ, 3g
PHONE
SEPTIC TANK ST PUMP CHAMBER PC
6Nmd sl 0 S `
DESIGNED BY: IF
'-
PROPOSED WELL ® _
-g SI g�
%f
CHECKED BY: JFF
COMPS: -
WATER SERVICE W
EDGE OF PAVEMENT
4tR 3"
FIELD BOOK: NEA 2DI6
100 FT. WETLAND BUFFER - � - ¢
EDGE OF VEGETATED WETLAND - -
�C
F j�e MAsewcMnwlh 2S
PLAN REF:
EXISTING CONTOUR - -120- •.IiHI/
'
d,pydln9e
PROPOSED CONTOUR 122
I�r•„y.
TEST PIT ®
PERCOLATION TEST O oPBMwp=
€ /...'
SEWER LINE S
/..
2 9/1/16 AS -BUILT PLAN
PROPERTY
1 4/2/16 VENT. ELEVATIONS
DATE I DESCRIPTION
GENERAL NOTES:
1. This plan was prepared for the design of the subsurface
wage tlisposal system only and is based on the subsurface
exploration and percolation tests listed.
2. System was designed only to accommodate sanitary sewage
as .icted with normal domestic usage, consisting of water
carrying putresc ble Waste, and for the flows est mated
by the design criteria
3 The system as not designed for garbage grind,,, and must
be vented through the bu'Id'ng s plumbing n accordance with
applicable codes.
4 Topography property Ines and building location are the result of a
survey referenced below.
6 Plans show only those features that were vi..ally apparent on
the date of topography and the absence of subsurface structures,
unities eto.,hove not been verYetl not intended implied.
lied.
7. Contractor to determine if site condition, are suitable for
proposed constructan antl inform the design eng neer and owner,
n writing, promptly of any plan deficiencies. unforeseen
subsurface conditions. or required changes.
B Alt -tion, are NOT proposed vi thin 100 feet of a bordering
wetland (pond brook swamp, etc.
NO portions f the project fall under the Wetland Protection
Act (M.G L. C131 S40)
9 There a e no Water supply Wells within 150 FT__ of the proposed leaching
s ( 150 FT of the septic tank)
10. System shall be inspected yearlyand p...... a.. reported to the
Town of YARMOUTH DOH Ata 'nim , water ter usage condition of
PD LEACHFIELD and pump cycles shall um me
reported and recorded annually.
11 Any deviation in construction from this plan or from the design
ora ntenance conditions shall be deemed to void any
certifications or representations made relative to the system.
TECHNICAL NOTES:
1 Building sew shall be n accordance with slate plumbing code
and have a m n'mum of 4' of cover 'n landscape areas, and
1' of cover or be sleeved in areas subject to vehicular traffic-
2,
raffic
2Septc tank shall be of approved design and made waterproof at the
factory, prior to installation. Manholes shall extend to final grade.
3 Inlet lee shall extend a minimum of 10 inches below the flow
line and the depth of the outlet tee, below the flow liho. shall
conform to the following table
LIQUID DEPTH DEPTH OF TEE
q 4'
5'
6' 9
24'
4. Tees shall have 3" of air space obove them, extend a minsmum
of 6' above the flow line and be at the centerline of the tank.
5. Septic tank shall be suitable for HS -20 loading.
fi Pip, from septic tank to distribution box shall be laid true
to line and grade and in accordance With manufacturers
spec'ficol ons. Cover shall be 1' (minimum) f over 100 feet
7 Changes in slope or direction, other than joint deflections,
shall be at a cleanout.
S. Gravity piping outside (Iter stone Shall be sold, 4' schd 40 pvc and
be water tight.
Pping within stone shall be perforated 4' SDR 35 pvc
and laid true to grade
9 Distribution box shall best on 6"c
shed tone with all outlets to be
at the same elevation and level far the first 2 feet. Install a
solvent welded tee cul off 1' above the outlet on the 2" fo... main
10. For this project, remove all hot top fill TO C horizon AND to 5'
around leach area. Replace with title 5 approved sand
11 Filter stone, if required, shall be double washed stone free from 'r n, fines,
Stan, shall be laced n leaching reo on do
and excavation. place St p g a y
ofso
12. All natural 'I or fill interfaces shall be scarfed prior to
placement of stone or chambers.
13. Install SILTSACK silt barrier at any catchbasins Within project
This project will require siltation/,tormw. ter barriers as shown.
14. Fill shall be comprised of clean granular sand, free from organic matter
and deleterious substances. Mixtures and layers of different classes of
sail shall not be used. The fill shall not contain any moteriol larger than
than 2 inches. A sieve anclysis employing procedures a outlined in
310 CMR 15.255(3) shall be performed o representative sample of the
fill to dam onstrate the material meet specifications contained in 310 CMR
15.255(3).
15. Cover material shall be suitable far backfll and compaction to m
959. compaction. Place and compact in m See detail.
x. 8" lifts. Provide compaction
nayl is prior to finish hot top is instolled.
16 Finished Surface over leaching area shall insure runoff - 2 % min.
for landscapes a
17. All disturbed urfaces shall be maintained to prevent erosion and
be properly stabilized after construction
18. Any portion of the exstng septic system encountered shall be removed
and disposed of in accordance with 31OCMR15.354
AS -BUILT PLAN OF
SUBSURFACE SEWAGE DISPOSAL SYSTEM
IN
YARMOUTH, MA
DESIGNED FOR
McDONALD'S USA, LLC
SCALE: AS NOTED JANUARY, SEPTEMBER 2016
NASHOBA ENGINEERING GROUP
6 BEAVER BROOKROAD, LITTLETON, MASS. 01460
TEL: (978)-501-3007
FILE: 1060YARMOUTH SHEET 1 OF 1 PLAN NO.: 2016-009