HomeMy WebLinkAboutConstruction Notes - Consultant Review - 1995 SALEM STREET 7/6/2020 North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 1995 Salem Street MAP: 106.13 LOT: 247
INSTALLER: Dave Maynard — 978-375-7228
DESIGNER: T.J. - Christiansen and Sergi —978-373-0310
PLAN DATE: May 5, 2017, rev Aug 14 2017
BOH APPROVAL DATE ON PLAN: 8/24/2017
INSPECTIONS
TANK INSPECTION: 9/10/2019
DATE OF BED BOTTOM INSPECTION:9/10/2019
DATE OF FINAL CONSTRUCTION INSPECTION: 9/19/19
DATE OF FINAL GRADE INSPECTION: I,l Ic,
SITE CONDITIONS E/ Contractor reports any changes to design plan
-8� Existing septic tank properly abandoned
® Internal plumbing all to one building sewer
® Topography not appreciably altered
Comments: 9/19/19 — New benchmark established, need confirmation from
designer that it is correct.
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
® Watertightness of tank has been achieved by
visual testing
® Inlet tee installed, centered under access port
® Outlet tee installed, centered under access port
(gas baffle)
® 24 inch cover to within 6" of finish grade
installed over one access port
❑ Hydraulic cement around inlet & outlet
Comments: 9/19/19 — Rubber boots on tank pipe penetrations. Risers and
manhole covers at site, to be installed.
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: 9/19/19 — Distribution box riser at site, to be installed.
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: Bottom of Bed ok 9/10/2019 — B. LaGrasse
FINAL GRADE
L—�// Loamed
Seeded
L Cover per plan
Comments:
DOCUMENTS NEEDED
Certification of Installation Form submitted
By engineer and signed and dated by
Engineer and installer
VAs-Built Plan
6�
Z
BM = 125.01
H R = 1.39
HI = 126.40
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Building Sewer OUT 2.62 123.45 122.75
Septic Tank IN 3.48 122.59 122.55
Septic Tank OUT 3.72 122.35 122.30
Distribution Box IN 6.19 119.88 119.83
Distribution Box OUT 6.38 119.69 119.66
Lateral 1 beginning 6.44 119.63 119.56
Lateral 1 end 6.70 119.37 119.33
Lateral 2 beginning 6.45 119.62 119.56
Lateral 2 end 6.70 119.37 119.33
Lateral 3 beginning 6.45 119.62 119.56
Lateral 3 end 6.68 119.39 119.33
Lateral 4 beginning 6.46 119.61 119.56
Lateral 4 end 6.71 119.36 119.33
Bottom of Bed/Chamber 7.58 118.82 118.83
SKETCH PLAN