HomeMy WebLinkAboutConstruction Notes - Consultant Review - 137 FOREST STREET 8/30/2019
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 137 Forest Street MAP: 106.A LOT: 175
INSTALLER: Peter Breen – 978-687-7774
DESIGNER: John D. Sullivan – 781-854-8644
PLAN DATE: June 6, 2019
BOH APPROVAL DATE ON PLAN: 6/27/2019
INSPECTIONS
TANK INSPECTION:
DATE OF BED BOTTOM INSPECTION: 7/24/2019
DATE OF FINAL CONSTRUCTION INSPECTION: 8/6/19
DATE OF FINAL GRADE INSPECTION:
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: 8/6/19 – Existing tanks, pumps and covers remained undisturbed.
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
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: 45’x40’ area excavated 60” deep @ Test Hole 1, 45” deep @ Test
Hole 2
SOIL ABSORPTION SYSTEM (Gravel-less Chambers)
Brand and Model of Chamber: Standard Quick
4 Plus Low Profile Infiltrator Chambers
Number of chambers per row: 6
Number of rows (trenches): 12
Comments: Total Chambers = 72
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 = 97.82
HR = 2.07
HI = 99.89
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Distribution Box IN 3.20 96.52 96.39
Distribution Box OUT 3.33 96.23 96.22
Lateral INLET 3.38 96.18 96.15
Top of Chamber 3.34 96.55 96.57
Bottom of Bed 4.03 95.86 95.90
SKETCH PLAN