HomeMy WebLinkAboutConstruction Notes - Septic - Consultant Review - 300 FOSTER STREET 7/2/2020
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 300 Foster Street MAP: 104.B LOT: 0002
INSTALLER: Todd Bateson 978-815-2703
DESIGNER: Jack Sullivan 781-854-8644
PLAN DATE:11/19/2019
BOH APPROVAL DATE ON PLAN: final revision 1/8/2020, received 5/12/2020
Expiration Date – 05/12/2023
INSPECTIONS
TANK INSPECTION:
DATE OF BED BOTTOM INSPECTION: 5/28/2020 S. Casey
DATE OF FINAL CONSTRUCTION INSPECTION: 6/2/2020
DATE OF FINAL GRADE INSPECTION: 6/3/2020 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: 6/2/20 – Existing 1500 gal. septic tank to remain per design 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)
_____ inch cover to within 6” of finish grade
installed over one access port
Hydraulic cement around inlet & outlet
Comments: 6/2/20 – Effluent filter installed on existing septic tank outlet and
centered under access port.
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:
SOIL ABSORPTION SYSTEM (General)
Bottom of SAS excavated down to C soil layer,
as provided on plan
Size of SAS excavated as per plan 20’ x 30’
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: 31 x20 ½ leach field in kind replacement. Per plan 5 ft over dig
already completed and not needed for inspection
FINAL GRADE S. Casey 6/03/2020 4:00pm
Loamed
Seeded
Cover per plan
Comments: Cover to Grade
DOCUMENTS NEEDED
Certification of Installation Form submitted
By engineer and signed and dated by
Engineer and installer
As-Built Plan
BM = _131.59__
HR = _6.82____
HI = __7.15___
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark 6.82 131.59 131.59
Septic Tank OUT 6.82 131.59 131.59
Distribution Box IN 6.91 131.83 131.50
Distribution Box OUT 7.09 131.65 131.33
Lateral 1 INVERT 7.46 131.28 131.26
Lateral 2 INVERT 7.46 131.28 131.26
Lateral 3 INVERT 7.48 131.26 131.26
Lateral 4 INVERT 7.47 131.27 131.26