HomeMy WebLinkAboutConstruction Notes - Septic Full Repair - Consultant Review - 250 ABBOTT STREET 2/14/2022
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 250 Abbott Street MAP: 038.0 LOT: 0159
INSTALLER: James Heider – 978-606-1435
DESIGNER: John M. Morin – 978-777-8586
PLAN DATE: 07.30.2021
BOH APPROVAL DATE ON PLAN: 08.30.2021
INSPECTIONS - Plan # 67868
TANK INSPECTION: 08.08.2022 S. Casey
DATE OF BED BOTTOM INSPECTION: 08.09.2022 S. Casey
DATE OF FINAL CONSTRUCTION INSPECTION: 09/06/22 I. DaRowe
DATE OF FINAL GRADE INSPECTION: 12/21/2022
SITE CONDITIONS
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: 9-6-22 By-pass vent was installed from D-box to septic tank to
replace high vent as proposed on the design plan. Change was approved by the
designer. I. DaRowe
SEPTIC TANK - Existing
N/A Building sewer in continuous grade, on
compacted firm base
N/A Cleanouts per plan
N/A Bottom of tank hole has 6” stone base
Tank size and loading per plan
N/A Monolithic tank construction / 2-piece
(circle one)
N/A 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 ___ inch diameter
Pipe penetrations appear watertight using
hydraulic cement (circle one)
Comments: 9-6-22 - (3) poly covers to finish grade. I. DaRowe
PUMP CHAMBER
(Delete if not present) Bottom of tank hole has 6" stone base
Weep hole plugged
1000 gallon Pump Chamber installed
H-10 loading
Monolithic tank construction
N/A Inlet tee installed, centered under access port
Pump(s) installed on stable base
Alarm float working
Pump On/Off floats working
Drain hole in pressure line
24” cover at final grade installed over pump
access port
Water tightness of tank has been achieved by
Visual
Hydraulic cement boots around inlet & outlet
Comments: 9-6-22 - No inlet tee installed per plan per the installer. I. DaRowe
CONTROL PANEL
(Delete if not present) Alarm & Pump are on separate circuits
Visual & audible alarm works as intended
Location of control panel: outside of southern
side of the house
Comments:
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: 9-6-22 - 2” x 4” transition per plan. I. DaRowe
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
N/A40 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: 08.09.2022 S.Casey – Size and depth good, clean up old test pits
and large rocks. Sand to be checked 08.10.2022
08.10.2022 – sand good, receipt attached.
SOIL ABSORPTION SYSTEM (Other)
Brand and Model: Presby Enviro-Septic
Number of units per row and number of rows
per design plan: 3.5 pipes x 9 lines
Elevations of laterals and chambers installed as on
approved plan
FINAL GRADE
Final cover as per plan
Loamed
Seeded
Cover per plan
Comments:
09.19.2022 – Rough grade building patio and walkway so will finish final grade
upon completion of those S.C.
DOCUMENTS NEEDED
Certification of Installation Form submitted
by designer and signed and dated by
designer and installer
As-Built Plan by designer
BM = 102.91
HR = 6.16
HI = 109.07
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT -----
Septic Tank IN -----
Septic Tank OUT 9.10 99.62 99.7+/-
Pump Chamber IN 9.50 99.22 99.54
Pump Chamber OUT 9.85 98.87 99.29
(4”) 2” x 4” coupling 7.39 101.33 101.41
Distribution Box IN 7.36 101.36 101.33
Distribution Box OUT 7.53 101.19 101.16
Presby Line 1 7.66 101.06 100.99
Line 2 7.66 101.06 100.99
Line 3 7.67 101.05 100.99
Line 4 7.67 101.05 100.99
Line 5 7.67 101.05 100.99
Line 6 7.66 101.06 100.99
Line 7 7.66 101.06 100.99
Line 8 7.66 101.06 100.99
Line 9 7.66 101.06 100.99
Bottom of sand 9.72 99.35 99.9
End manifold vent pipe 6.19 102.53
invert
By-pass vent pipe invert 6.92 101.80
Bottom of Presby pipe 100.46 - 100.47 100.40