HomeMy WebLinkAboutFull Septic Repair - Construction Notes - Consultant Review - 42 JAY ROAD 8/22/2023 North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 42 Jay Road MAP: 98A LOT: 4
INSTALLER: John Butt
DESIGNER: Vladimir Nemchenok
PLAN DATE: 1-10-23
BOH APPROVAL DATE ON PLAN:
INSPECTIONS
TANK INSPECTION: 05.24.2023 — B. LaGrasse
DATE OF BED BOTTOM INSPECTION: 06.06.2023 — B. LaGrasse
DATE OF FINAL CONSTRUCTION INSPECTION: 6/21/23 — I.DaRowe
DATE OF FINAL GRADE INSPECTION:
SITE CONDITIONS
N/A 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:
SEPTIC TANK
® Building sewer in continuous grade, on
compacted firm base
N/A 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
N/A 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
® effluent filter installed
® 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 24 inch diameter
® Pipe penetrations appear watertight using
rubber boots
Comments: 24" C.I. cover to within 6" of finish grade above inlet, 24" C.I. cover to
finish grade above outlet— I.DaRowe
Tank Base inspection 05.24.2023. All set to install tank and excavate field—B. LaGrasse
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: H-10 D-Box was installed instead of H-20 D-Box. Installer will contact
the designer to review if replacing cover with a H-20 cover is an option —
I.DaRowe
6-22-23 — Designer forwarded photograph of H-20 D-Box cover installed at this
site
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/A Retaining wall material, location and height if
specified on plan
Comments:
Bed was 35 x 60 Excavated A + B. no rocks over 6" looked good. Sand inspected 6.7 .2023 Looks
good. B. LaGrasse
BM = 100.00
HR = 1.51
HI = 101.51
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT 4.38 96.78 97.3
Septic Tank IN 4.55 96.61 96.65
Septic Tank OUT 4.88 96.28 96.40
Distribution Box IN 5.43 95.73 95.70
Distribution Box OUT 5.58 95.58 95.53
Lateral 1 BEGINNING 5.78 95.38 95.45
Lateral 1 END 6.01 95.15 95.20
Lateral 2 BEGINNING 5.75 95.41 95.45
Lateral 2 END 6.01 95.15 95.20
Lateral 3 BEGINNING 5.76 95.40 95.45
Lateral 3 END 6.01 95.15 95.20
Lateral 4 BEGINNING 5.73 95.43 95.45
Lateral 4 END 6.01 95.15 95.20
Lateral 5 BEGINNING 5.73 95.43 95.45
Lateral 5 END 6.01 95.15 95.20
Lateral 6 BEGINNING
Lateral 6 END
Bottom of Bed 6.83 94.68 94.70
FINAL GRADE
�] Final cover as per plan
Loamed
Seeded
[� Cover per plan
Comments: B. LaGrasse
completed 08.02.2023
DOCUMENTS NEEDED
Certification of Installation Form submitted
by designer and signed and dated by 6/ 9. /��� � Ms /P,r
designer and installer 66
�'-
As-Built Plan by designer