HomeMy WebLinkAboutConstruction Notes - Consultant Review - 46 WHITE BIRCH LANE 9/24/2024 North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 46 White Birch Lane MAP: 061.0 LOT: 94
INSTALLER: Peter Breen — mulch770C-yahoo.com 978-687-7774
DESIGNER:Vladimir Nemchenok/ Bill Dufresne (978) 502-6206 (978)475-3555 x-20
PLAN DATE: 12.27.23
BOH APPROVAL DATE ON PLAN: 02.19.2024
INSPECTIONS
TANK INSPECTION: 6 -7- 2-y
DATE OF BED BOTTOM INSPECTION: 7 3•;tV
DATE OF FINAL CONSTRUCTION INSPECTION: '7. 3•�Y
DATE OF FINAL GRADE INSPECTION:6/11/24 D. Ottenheimer
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:
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
❑ If 2-piece, water tightness of tank has been
achieved by water/ vacuum test (circle one)
M Inlet tee installed, centered under access port
M Outlet tee installed, centered under access port
M 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
M Pipe penetrations appear watertight using
rubber boots
Comments: 6/11/24 Existing building sewer re-used. Contractor to install
manhole to grade over effluent filter. D. Ottenheimer
DISTRIBUTION-BOX
❑ Installed on stable stone base
M H-20 D-Box
® Baffle wall
® Hydraulic cement around inlet & outlets
M 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
M Size of SAS excavated as per plan
M Sand installed, if specified on plan
M 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
❑ Retaining wall material, location and height if
specified on plan
Comments:
DOCUMENTS NEEDED
Certification of Installation Form submitted
by designer and signed and dated by
designer and installer
As-Built Plan by designer
BM = 164.40
HR = 1.20
HI = 165.60
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Building Sewer OUT
Septic Tank IN 4.00 161.27 161.25
Septic Tank OUT 4.27 161 .00 161.00
Distribution Box IN 4.40 160.87 160.45
Distribution Box OUT 4.50 100.77 160.28
Lateral 1 BEGINNING 5.09 160.18 160.20
Lateral 1 END 5.32 159.95 160.00
Lateral 2 BEGINNING 5.10 160.17 160.20
Lateral 2 END 5.33 159.94 160.00
Lateral 3 BEGINNING 5.10 160.17 160.20
Lateral 3 END 5.33 159.94 160.00