HomeMy WebLinkAboutConsultant Review - 60 DEER MEADOW ROAD 6/20/2018
North Andover Health Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 60 Deer Meadow Road MAP: 104.B LOT: 118
INSTALLER: Peter Breen
DESIGNER: Greg Hochmuth
PLAN DATE: 9/11/17 Rev: 10/3/17
BOH APPROVAL DATE ON PLAN:
INSPECTIONS
TANK INSPECTION:
DATE OF BED BOTTOM INSPECTION:
DATE OF FINAL CONSTRUCTION INSPECTION: 12/6/17
DATE OF FINAL GRADE INSPECTION: 06/20/2018
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:
SEPTIC TANK
Building sewer in continuous grade, on
compacted firm base
N/A 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 finish grade installed over
outlet access port
Plastic seals boots around inlet & outlet
Comments: Roth plastic tank installed per plan
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: (3) D-Boxes installed: (2) are velocity reducing and (1) is the D-Box
for the leach field
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
N/A40 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
N/ARetaining 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 = 133.54
HR = 2.25
HI = 135.79
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT 161.8+/- 161.8+/-
Septic Tank IN 153.54 152.33
Septic Tank OUT 153.26 152.08
Distribution Box #1 IN 1.53 133.91 134.67
Distribution Box #1 OUT 1.79 133.65 134.50
Distribution Box #2 IN 7.09 128.35 128.17
Distribution Box #2 OUT 7.27 128.17 128.00
Distribution Box #3 IN 8.22 Inv 127.57 127.54
Distribution Box #3 OUT 8.02 127.42 127.37
Lateral 1 TOP 8.14 / 8.40
Lateral 1 INVERT 127.30 / 127.04 127.26 / 127.00
Lateral 2 TOP 8.14 / 8.40
Lateral 2 INVERT 127.30 / 127.04 127.26 / 127.00
Lateral 3 TOP 8.14 / 8.40
Lateral 3 INVERT 127.30 / 127.04 127.26 / 127.00
Bottom of Bed 9.62 126.2 126.5
CRITICAL SETBACK DISTANCES
Mark those distances checked in the field against the design plan and regulatory
setback
Tank SAS Sewer
Property line 10 10 --
Cellar wall 10 20 --
Inground pool 10 20 --
Slab foundation 10 10 --
Deck, on footings, etc 5 10 --
1
Waterline 10 10 10
2
Private drinking well 75 100 50
Irrigation well 75 100
Surface Water 25 50
Bordering Vegetated Wetland ,
3
Salt Marsh, Inland / Coastal Bank 75 100
Wetlands bordering surface
water supply or trib. (in Watershed) 150 150
Trib. to surface water supply 325 325
Public well 400 400
Interim Wellhead Prot. Area
Reservoirs 400 400
Drains (wat. supply/trib.) 50 100
Drains (intercept g.w.) 25 50
Drains (Other) Foundation 10 (5) 20 (10)
Drywells 20 25
1
Suction line 222(2)
2
100 feet is a minimum acceptable distance and no variance is allowed for a lesser distance (NA 5.02).
3
As defined in 310 CMR 10.55, 10.32, 10.54, and 10.30, respectively, pursuant to 15.211(3), also by NA
wetland bylaws