HomeMy WebLinkAboutConstruction Notes - Consultant Review - 115 OGUNQUIT ROAD 5/11/2022
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 115 Ogunquit Road MAP: 105.A LOT: 0001
INSTALLER: Robert Innis 978-663-6006 permit # 59894 vp
DESIGNER: John Morin 978-777-8586 permit submittal # 58042 vp
Ben Osgood 978-435-1324, bosgood@rangereng.com
PLAN DATE: final revision date – 03.22.2021
BOH APPROVAL DATE ON PLAN: 04.02.2021
INSPECTIONS
TANK INSPECTION: 9.21.2022
DATE OF BED BOTTOM INSPECTION:
DATE OF FINAL CONSTRUCTION INSPECTION: 10/19/21
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: 10/19/21 – House not yet constructed, foundation only. D.
Ottenheimer
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: 9.21.2021 S. Casey 6” stone ok, Tank Coming 9.25.2021 according
to installer 10/19/21 – Small bit of supporting material needs to be provided
beneath the building sewer pipe. Reviewed need for one riser to within 6” of
finished grade with contractor. Contractor will implement, no need for re-
inspection. D. Ottenheimer
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: 10/19/21 – Reviewed need for risers on d-box to within 6” of finished
grade. Contractor will implement, no need for re-inspection. D. Ottenheimer
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 and ends connected to
header (and vented if impervious material
above)
Elevations of laterals and chambers installed as on
approved plan
Retaining wall (boulder / concrete / timber/ block)
Final cover as per plan
Comments: L. Vlasuk inspected sand on 9.8.2021 and got receipts. Passed.
10/19/21 – One arm of leaching pipe was slightly off, contractor will adjust. No
need for re-inspection. D. Ottenheimer
FINAL GRADE
Loamed
Seeded
Cover per plan n/a within 6”grade
Comments:
DOCUMENTS NEEDED
Certification of Installation Form submitted
By engineer and signed and dated by
Engineer and installer
As-Built Plan
BM = 114.40
HR = 8.56
HI = 122.96
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT 3.40 119.23 118.20
Septic Tank IN 3.86 118.77 118.00
Septic Tank OUT 4.04 118.59 117.75
Distribution Box IN 5.86 116.77 116.73
Distribution Box OUT 6.05 116.58 116.55
Lateral 1 BEG 6.16 116.47 116.42
Lateral 1 END 6.32 116.31 116.23
Lateral 2 BEG 6.18 116.45 116.42
Lateral 2 END 6.42 116.21 116.23
Lateral 3 BEG 6.18 116.45 116.42
Lateral 3 END 6.45 116.18 116.23
Lateral 4 BEG 6.18 116.45 116.42
Lateral 4 END 6.45 116.18 116.23
Lateral 5 BEG 6.17 116.46 116.42
Lateral 5 END 6.48 116.15 116.23