HomeMy WebLinkAboutConstruction Notes - Consultant Review - 125 BOSTON STREET 8/1/2023
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 125 Boston St MAP: 107B LOT: 43
INSTALLER: Chad Jablonski
DESIGNER: Clayton Morin
PLAN DATE: 11/4/22
BOH APPROVAL DATE ON PLAN: 11/10/22
INSPECTIONS
TANK INSPECTION:
DATE OF BED BOTTOM INSPECTION: 03.15.2023
DATE OF FINAL CONSTRUCTION INSPECTION: 3/27/23 – I. DaRowe
DATE OF FINAL GRADE INSPECTION: 6/14/2023
SITE CONDITIONS
N/A Contractor reports any changes to design plan
N/A Existing septic tank properly abandoned, if
present
Internal plumbing all to one building sewer
Topography not appreciably altered
Comments: Existing septic tank remained from recent installation
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: Existing septic tank remained from recent installation. New 4” PVC
pipe was connected about 4’-6’ after the outlet end of the septic tank.
DISTRIBUTION-BOX
Installed on stable stone base
H-20 D-Box
N/A 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)
N/ARetaining wall material, location and height if
specified on plan
Comments:
SOIL ABSORPTION SYSTEM (Other)
FINAL GRADE
Final cover as per plan
Loamed
Seeded
Cover per plan
Comments: Brian LaGrasse - completed
DOCUMENTS NEEDED
Certification of Installation Form submitted
by designer and signed and dated by
designer and installer
As-Built Plan by designer
BM = 103.42
HR = 1.65
HI = 105.07
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT
Existing Septic Tank IN
Existing Septic Tank 6.79 97.93 97.37
OUT
Distribution Box IN 6.89 97.83 97.77
Distribution Box OUT 7.05 97.67 97.60
Lateral 1 BEGINNING 7.10 97.62 97.50
Lateral 1 END 7.24 97.48 97.35
Lateral 2 BEGINNING 7.10 97.62 97.50
Lateral 2 END 7.25 97.47 97.35
Lateral 3 BEGINNING 7.05 97.67 97.50
Lateral 3 END 7.26 97.46 97.35
Lateral 4 BEGINNING 7.08 97.64 97.50
Lateral 4 END 7.26 97.46 97.35
Bottom of Bed 8.18 96.89 96.85