HomeMy WebLinkAboutSeptic Construction Notes - Consultant Review - 597 FOSTER STREET 1/13/2021
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 597 Foster Street MAP: 104.B LOT: 50
INSTALLER: Daniel Fonzi 978-375-5663, bfconstructioninc@gmail.com
DESIGNER: Thad Berry – 978-500-8419, thadberry2@verizon.net
PLAN DATE: 08.10.2020
BOH APPROVAL DATE ON PLAN: 11.16.2020
INSPECTIONS
TANK INSPECTION: 11.20.2020 10am S. Casey
DATE OF BED BOTTOM INSPECTION: 11/24/2020 9:30am S.Casey
DATE OF FINAL CONSTRUCTION INSPECTION: 12/2/2020 &12/3/2020
D.Ottenheimer
DATE OF FINAL GRADE INSPECTION: 1/4/2021 – S. Casey
SITE CONDITIONS
Contractor reports any changes to design plan
Existing septic tank properly abandoned
Internal plumbing all to one building sewer
Topography not appreciably altered
Comments: 12/2/20 – Existing septic tank not yet abandoned. Internal plumbing
changes not yet completed. Grading between septic tank and street modified to
be a retaining wall instead of fill material shown on plan
SEPTIC TANK
Building sewer in continuous grade, on
compacted firm base
Cleanouts per plan
Bottom of tank hole has 6” stone base
Weep hole plugged
1500 gallon tank has been installed
H-10 loading
Monolithic tank construction
Water tightness of tank has been achieved by
visual testing
Inlet tee installed, centered under access port
Outlet tee installed, centered under access port
(effluent filter)
20 inch cover to within 6” of finish grade
installed over one access port
Rubber boots around inlet & outlet
Comments: Inspection 11.20.2020 @9:30pm for tank hole. Tank coming @ 1pm
– will send pictures of tank in hole.
DISTRIBUTION-BOX
Installed on stable stone base
H-20 D-Box
Inlet tee (if pumped or >0.08’/foot)
Hydraulic cement around inlet & outlets
Observed even distribution
Speed levelers provided (not required)
Schedule 40 PVC Pipe
Comments: 12/2/20 – Hydraulic cement needed around pipe penetrations
SOIL ABSORPTION SYSTEM (General)
Bottom of SAS excavated down to C soil layer,
as provided on plan
Size of SAS excavated as per plan
Title 5 sand installed, if specified on plan
40 Mil HDPE barrier installed
Laterals installed and ends connected to
header (and vented if impervious material
above)
Elevations of laterals and chambers installed as on
approved plan
Retaining wall (boulder / concrete / timber/ block)
Final cover as per plan
Comments: 22 x 51’, sand good, C-layer visible
12/2/20 – 38’ x 12’ measured, pipes 4’ o.c. Leach stone not clean,
to be removed
FINAL GRADE
Loamed
Seeded
Cover per plan
Comments: S. Casey – 1/4/2021
DOCUMENTS NEEDED
Certification of Installation Form submitted
By engineer and signed and dated by
Engineer and installer
As-Built Plan
BM = 100.00
HR = 5.50
HI = 105.50
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT
Septic Tank IN 3.01 102.16 102.07
Septic Tank OUT 3.21 101.96 101.82
Distribution Box IN 3.52 101.65 101.62
Distribution Box OUT 3.68 101.49 101.45
Lateral 1 BEG 3.72 101.45 101.44
Lateral 1 END 3.89 101.28 101.25
Lateral 2 BEG 3.70 101.47 101.45
Lateral 2 END 3.89 101.28 101.26
Lateral 3 BEG 3.72 101.45 101.44
Lateral 3 END 3.89 101.28 101.25
12/2/20 – Could not measure pipe out of house due to location of survey equipment
setup, visually apparent pitch exists however.