HomeMy WebLinkAboutConstruction Notes - Consultant Review - 199 OLD CART WAY 11/15/2022
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 199 Old Cart Way MAP: 107.B LOT: 0108
INSTALLER: Blake Seale – 978-697-8773
DESIGNER: Vladimir Nemchenok / Bill Dufresne – 978-475-3555
PLAN DATE: 03.31.2022
BOH APPROVAL DATE ON PLAN: 05.04.2022
INSPECTIONS
TANK INSPECTION: 07.27.2022 S.Casey
DATE OF BED BOTTOM INSPECTION: 08.03.2022 S. Casey
DATE OF FINAL CONSTRUCTION INSPECTION:
DATE OF FINAL GRADE INSPECTION:
SITE CONDITIONS
Contractor reports any changes to design plan
Existing septic tank properly abandoned, if
present
Internal plumbing all to one building sewer
Topography not appreciably altered
Comments: 8/5/2022 – Leach field reconfigured due to ledge. Elevations on
design plan had errors. D. Ottenheimer
SEPTIC TANK
Building sewer in continuous grade, on
compacted firm base
Cleanouts per plan
Bottom of tank hole has 6” stone base
Tank size and loading per plan
Monolithic tank construction / 2-piece
(circle one)
If monolithic, water tightness of tank has been
achieved by visual testing
If 2-piece, water tightness of tank has been
achieved by water / vacuum test (circle one)
Inlet tee installed, centered under access port
Outlet tee installed, centered under access port
Gas baffle / effluent filter installed (circle one)
If effluent filter, riser to finished grade over filter
Riser with cover to within 6” of finish grade
installed over one access port
Manhole and riser minimum ___ inch diameter
Pipe penetrations appear watertight using
rubber boots / hydraulic cement (circle one)
Comments: 07.27.2022 Pass
DISTRIBUTION-BOX
Installed on stable stone base
H-20 D-Box
Inlet tee (if pumped or >0.08’/foot)
Hydraulic cement around inlet & outlets
Even distribution observed
Schedule 40 PVC Pipe
Comments:
SOIL ABSORPTION SYSTEM (General)
Bottom of SAS excavated down to specified
soil layer, as provided on plan
Size of SAS excavated as per plan
Sand installed, if specified on plan
Sand displays few fines when handled
40 Mil HDPE barrier installed, if specified on
design plan
Laterals installed and ends capped or
connected to header (and vented if impervious
material above)
Retaining wall material, location and height if
specified on plan
Comments: 08.03.2022 S.Casey Ledge hit (see image) designer to re-design
plan. 22 x 27 field gives 60 sq ft which is > 5 sq replaced
SOIL ABSORPTION SYSTEM (Other)
FINAL GRADE
Final cover as per plan
Loamed
Seeded
Cover per plan
Comments: 11.07.2022 seeded and loamed – S. Casey
DOCUMENTS NEEDED
Certification of Installation Form submitted
by designer and signed and dated by
designer and installer
As-Built Plan by designer
BM = 187.72
HR = 1.07
HI = 188.79
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT 3.10 185.36 186.35
Septic Tank IN 3.84 184.62 182.80
Septic Tank OUT 4.12 184.34 182.55
Distribution Box IN 5.70 182.76 182.30
Distribution Box OUT 5.88 182.58 182.13
Lateral 1 BEGINNING 5.96 182.50 182.10
Lateral 1 END 6.09 182.37 181.90
Lateral 2 BEGINNING 5.96 182.50 182.10
Lateral 2 END 6.09 182.37 181.90
Lateral 3 BEGINNING 5.96 182.50 182.10
Lateral 3 END 6.09 182.37 181.90
Lateral 4 BEGINNING 5.98 182.50 182.10
Lateral 4 END 6.09 182.37 181.90
Lateral 5 BEGINNING 5.96 182.50 181.10
Lateral 5 END 6.09 182.37 181.90