HomeMy WebLinkAboutOnsite wastewater system construction notes - Consultant Review - 37 WELLINGTON WAY 8/8/2019 •
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 37 Wellington Way (Lot 6) MAP:105C LOT: 22
INSTALLER: David Maynard — Maynard Construction
DESIGNER: Christiansen & Sergi, Inc
PLAN DATE: 5/20/16 REV 12/22/16
BOH APPROVAL DATE ON PLAN: 1/11/2017
INSPECTIONS
TANK INSPECTION: 6/8/2017
DATE OF BED BOTTOM INSPECTION:6/13/2017
DATE OF FINAL CONSTRUCTION INSPECTION: 6/20/17
DATE OF FINAL GRADE INSPECTION:
SITE CONDITIONS
❑ Contractor reports any changes to design plan
❑ Existing septic tank properly abandoned-
® Internal plumbing all to one building sewer
® Topography not appreciably altered
Comments:
SEPTIC TANK
® Building sewer in continuous grade, on
compacted firm base
❑ Cleanouts per plan
® Bottom of tank hole has 6" stone base
® Weep hole plugged
® 1500 gallon tank has been installed
H-10 loading
® Monolithic tank construction
® Water tightness of tank has been achieved by
visual testing
® Inlet tee installed, centered under access port
® Outlet tee installed, centered under access port
(gas baffle)
❑ inch cover to within 6" of finish grade
installed over one access port
® Boots around inlet & outlet
Comments: 6/13/17 Tank was 16' from the house — Michele Grant
DISTRIBUTION-BOX
❑ Installed on stable stone base
® H-20 D-Box
❑ Inlet tee (if pumped or>0.08'/foot)
® Hydraulic cement around inlet & outlets
® Observed even distribution
❑ Speed levelers provided (not required)
® Schedule 40 PVC Pipe
Comments:
SOIL ABSORPTION SYSTEM (General)
® Bottom of SAS excavated down to C soil layer,
as provided on plan
® Size of SAS excavated as per plan
® Title 5 sand installed, if specified on plan
❑ 40 Mil HDPE barrier installed
® Laterals installed
® Elevations of laterals and chambers installed as on
approved plan
❑ Retaining wall (boulder/concrete /timber/ block)
❑ Final cover as per plan
Comments: 6/13/2017
The Bottom of the Bed was approximately 15' down to the "C" layer 55' width x
29 ' length — Michele Grant
FINAL GRADE
❑ l
Loamed
❑ Seeded .
❑ Cover per plan C
0,1
0001
Comments:
DOCUMENTS NEEDED �1el
❑ Certification of Installation Form submitted
By engineer and signed and dated by
Engineer and installer
[� As-Built Plan
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BM = 128.42
H R = 9.30
HI = 137.72
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT 3.70 133.69 133.05
Septic Tank IN 4.59 132.80 132.72
Septic Tank OUT 4.76 132.63 132.47
Pump Chamber IN
Pump Chamber OUT
Distribution Box IN 5.18 132.21 132.22 j
Distribution Box OUT 5.35 132.04 132.05
Lateral 1 Beg 5.38 132.01 131.95
Lateral 1 End 5.64 131.75 131.75 j
Lateral 2 Beg 5.40 131.99 131.95 j
Lateral 2 End 5.64 131.75 131.75
Lateral 3 Beg 5.43 131.96 131.95
Lateral 3 End 5.64 131.75 131.75
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Bottom of Bed/Chamber 7.46 130.26
SKETCH PLAN
CRITICAL SETBACK DISTANCES
Mark those distances checked in the field against the design plan and regulatory
setback
Tank SAS Sewer
® Property line 10 10 --
® Cellar wall 10 20 --
® Inground pool 10 20 --
® Slab foundation 10 10 --
® Deck, on footings, etc 5 10 --
Waterline 10 10 10'
® Private drinking well 75 1002 50
® Irrigation well 75 100
® Surface Water 25 50
® Bordering Vegetated Wetland j
Salt Marsh,Inland/Coastal Bank' 75 100
® Wetlands bordering surface
water supply or trib. (in Watershed) 150 150
® Trib. to surface water supply 325 325
® Public well 400 400
® Interim Wellhead Prot. Area
® Reservoirs 400 400
® Drains (wat. supply/trib.) 50 100
® Drains (intercept g.w.) 25 50
® Drains (Other)Foundation 10(5) 20(10)
® Drywells 20 25
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Suction line 222(2)
2 100 feet is a minimum acceptable distance and no variance is allowed for a lesser distance(NA 5.02).
3 As defined in 310 CMR 10.55, 10.32, 10.54,and 10.30,respectively,pursuant to 15.211(3),also by NA
wetland bylaws
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6/29/20V, Town of North Andover Mail-Lot 6#t37 Wellington Way
4
NaR BAN OVER
Massachuserbis, .__ Michele Grant<mgrant@northandoverma.gov>
Lot 6 #37 Wellington Way
1 message
Marylee Messina <messinanewhomes@gmail.com> Thu, Jun 29, 2017 at 10:15 AM
To: Michele Grant <Mgrant@northandoverma.gov>
Hi Michele, Bob asked me to email you to let you know that Messina Development Co.,
Inc. will be responsible for the final grading and seeding over the septic system at lot 6
#37 Wellington Way.
If you need additional information, please let me know. Thanks, Marylee
Pyo
i
https://mai 1.google.com/mai I/ca/u/O/?ui=2&ik=d4458df3d9&jsver=l EZPUTRTBd.en.&view=pt&search=inbox&th=15cf4352a6d1 ccl8&si ml=15cf4352a6d1 cc18 1/1
PUBLIC HEALTH DEPARTMENT
(ommunity&Economic Development
TOWN OF NORTH ANDOVER
SEPTIC DISPOSAL SYSTEM—INSTALLATION CERTIFICATION
The undersigned hereby certify that the Sewage Disposal System(constructed;( )repaired;
By:
(Print Na
Located at: a
(Installation dress)
Was installed in conformance with the North Andover Board of Health approved plan,originally dated
and last revised on /;2 z Z — /lp ,with a design flow of
L/ y V gallons per day. The materials used were in conformance with those specified on the
approved plan;the system was installed in accordance with the provisions of 310. CMR 15.000,Title 5 and local
regulations,and the final grading agrees substantially with the approved plan.All work is accurately represented on
the As-built which has been submitted to the Board of Health.
Bottom of Bed Inspection Date:
Engineer Representative(Signature)
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And—Print Name
Final Construction Inspection Date:
Engineer Representative(Signature)
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And—Print Name
Installer: (Signature) Date:
And—Print Name
Engineer: (Signature) Date:
And—Print Name
120 Main Street, North Andover, Massachusetts 01845
Phone 978.688.9540 Fax 978.688.9542 Web http://www.northandoverma.gov