HomeMy WebLinkAboutSeptic Construction Notes - Consultant Review - 160 CARLTON LANE 3/22/2021
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 160 Carlton Lane MAP: 107.A LOT: 0192
INSTALLER: Peter Nardone – Nardone Septic Inc 781-953-2720
DESIGNER: Thorsen Akerley, R.S. Williams & Sprages, LLC 978-539-8088
PLAN DATE: 06/06/2019 revision 7/10/2019
BOH APPROVAL DATE ON PLAN: 08/09/2019
INSPECTIONS
TANK INSPECTION:
DATE OF BED BOTTOM INSPECTION: 9/5/2019
DATE OF FINAL CONSTRUCTION INSPECTION: 9/30/2019 – B. LaGrasse
DATE OF FINAL GRADE INSPECTION: 9/30/2019
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: 9/20/19 – Contractor reports over-dig is smaller, septic tank was not
replaced per 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
(gas baffle/effluent filter)
24_____ inch cover to within 6” of finish grade
installed over one access port
Hydraulic cement around inlet & outlet
Comments: 9/20/19 – Inlet baffle confirmed to be intact. Outlet pipe penetration
was not water-tight.
09/27/2019 - Water Tight – B. LaGrasse
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: 9/20/19 – One distribution box outlet was not water-tight
09/27/2019 – Water Tight – B. LaGrasse
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:
FINAL GRADE
Loamed
Seeded
Cover per plan
Comments:
DOCUMENTS NEEDED
Certification of Installation Form submitted
By engineer and signed and dated by
Engineer and installer
As-Built Plan
BM = __172.06___
HR = __1.70____
HI = __173.76___
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Septic Tank OUT 2.08 171.35 171.16
Distribution Box IN 2.82 170.61 170.58
Distribution Box OUT 3.06/3.01 170.37/170.42 170.41
Lateral 1 Beg 3.14 170.29 170.35
Lateral 1 End 3.42 170.01 170.00
Lateral 2 Beg 3.10 170.33 170.35
Lateral 2 End 3.42 170.01 170.00