HomeMy WebLinkAboutConstruction Notes - Consultant Review - 1761 SALEM STREET 10/2/2023
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 1761 Salem Street MAP: 106.B LOT: 0089
INSTALLER: Peter Nardone
DESIGNER: Thorsen Akerley – 978-539-8088
PLAN DATE: 11-24-21
BOH APPROVAL DATE ON PLAN: 12.05.2021
INSPECTIONS
TANK INSPECTION:
DATE OF BED BOTTOM INSPECTION: 10.06.2022 S.Casey
DATE OF FINAL CONSTRUCTION INSPECTION: 12-20-22 D. Ottenheimer
DATE OF FINAL GRADE INSPECTION: S. Casey
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: 12-20-22 – Building sewer was not where shown on design plan,
contractor adjusted tank location accordingly. Ok. 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
If monolithic, 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 installed
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
Comments: 12-20-22 – Installer to provide at least one riser with manhole cover
to within 6” of finished grade. 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
Even distribution observed
Schedule 40 PVC Pipe
Comments: 12-20-22 – One outlet from distribution box to Enviro-Septic bed. D.
Ottenheimer
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:
SOIL ABSORPTION SYSTEM (Other)
12-20-22 Enviro-Septic system installed. Size per plan. D. Ottenheimer
FINAL GRADE
Final cover as per plan
Loamed
Seeded
Comments: Cover to Grade – 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 = 107.57
HR = 3.05
HI = 110.62
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT 1.29 109.00 109.0
Septic Tank IN 2.97 107.32 107.17
Septic Tank OUT 3.20 107.09 106.92
Distribution Box IN 4.15 106.14 106.02
Distribution Box OUT 4.36 105.93 105.85
Lateral 1 IN 4.62 105.67 105.68
Lateral 1 TOP OF 4.53 106.09 106.10
ENVIRO-SEPTIC