HomeMy WebLinkAboutConstruction Notes - Consultant Review - 345 BOSTON STREET 8/9/2019 NORTIN
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PUBLIC HEALTH DEPARTMENT
Community Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 345 Boston Street (formerly Lot 12) MAP: LOT:
INSTALLER: Charles Todd
DESIGNER:
PLAN DATE: 3/20/05
BOH APPROVAL DATE ON PLAN: 4/8/05
INSPECTIONS
TANK INSPECTION:
DATE OF BED BOTTOM INSPECTION:
DATE OF FINAL CONSTRUCTION INSPECTION: 10/27/06
DATE OF FINAL GRADE INSPECTION:
SITE CONDITIONS
❑ Existing septic tank properly abandoned
® Internal plumbing all to one building sewer
❑ Topography not appreciably altered
Comments: Water line appears to run along front of house, cross the building sewer
line and be located within 10' of tanks and may be within 10' of SAS. No magnetic
marking tape.
SEPTIC TANK
❑ Bottom of tank hole has 6" stone base
® Weep hole plugged
® 1500 gallon tank has been installed
H-10 loading Monolithic construction
® Water tightness of tank has been achieved
(Visual or Vacuum Test or Water held for 24hrs)
1600 Osgood Street,North Andover,Massachusetts 01845
Phone 978.688.9540 Fax 978.688.8476 Web www.townofnorthandover.com
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PUBLIC HEALTH DEPARTMENT
Community Development Division
® Inlet tee installed, centered under access port
® Outlet tee (gas baffle or effluent filter) installed,
centered under access port
❑ 24" inch cover to within 6" of final grade installed over
one access port, must be over outlet of tank if effluent
filter is present
® Hydraulic cement around inlet & outlet
Comments: Effluent filter on plan was not installed. Instructed Mr. Todd to purchase
DEP-approved filter brand and to have manhole finished to grade. 10/27/06.
PUMP CHAMBER
❑ Bottom of tank hole has 6" stone base
❑ Weep hole plugged
❑ Combo Tank installed. Size:
® 1000 gallon Pump Chamber installed
H-10 loading Monolithic construction)
❑ Inlet tee installed, centered under access port
® Pump(s) installed on stable base
® Alarm float working
® Pump On/Off floats working
® Separate on/off floats
® Drain hole in pressure line
❑ 24" inch cover to within 6" of final grade installed over
pump access port
® Water tightness of tank has been achieved
Visual testing
® Hydraulic cement around inlet & outlet
Comments: Instructed Mr. Todd that manhole needs riser to within 6" of final grade.
10/27/06.
1600 Osgood Street,North Andover,Massachusetts 01845
Phone 978.688.9540 Fax 978.688.8476 Web www.townofnorthandover.com
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PUBLIC HEALTH DEPARTMENT
(ommunity Development Division
DISTRIBUTION-BOX
® Installed on stable stone base
® Inlet tee (if pumped or >0.08'/foot)
❑ Hydraulic cement around inlet & outlets
❑ Observed even distribution
❑ Speed levelers provided (not required)
Comments: Distribution box was leaking in at least three places. Required it to be
removed and replaced. 10/27/06.
SOIL ABSORPTION SYSTEM (General)
❑ Bottom of SAS excavated down to 6 in into 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
® Retaining wall (boulder/ concrete / timber/ block)
❑ Final cover as per plan
Comments: No observation ports on leach trenches. 10/27/06.
SOIL ABSORPTION SYSTEM (Gravel-less Chambers)
❑ Brand and Model of Chamber Infiltrator Quick 4
® Number of chambers per row 14
® Number of rows (trenches) 3
® Laterals installed and ends connected to header (and
vented if impervious material above)
® Elevations of laterals and chambers installed as on
approved plan
Comments: Changed from Standard model Infiltrator-brand chambers to Quick 4 model.
OK. 10/27/06.
1600 Osgood Street,North Andover,Massachusetts 01845
Phone 978.688.9540 Fax 978.688.8476 Web www.townofnorthandover.com
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PUBLIC HEALTH DEPARTMENT
Community Development Division
CONTROLPANEL
❑ Alarm & Pump are on separate circuits
® Alarm sounds when float is tripped
® Location of control panel: basement
❑ Rated for exterior if placed outside
® Alarm signal located inside
1600 Osgood Street,North Andover,Massachusetts 01845
Phone 978.688.9540 Fax 978.688.8476 Web www.townofnorthandover.com
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PUBLIC HEALTH DEPARTMENT
Community Development Division
SYSTEM ELEVATIONS
Comments:
Note that the benchmark on the Plan no longer exists. A new benchmark was
established as a nail in a tree. This generally appeared accurate when checked against
elevation of the road. 10/27/06.
INVERT IN FIELD PLAN INVERT ELEV.
Benchmark
Building Sewer OUT 210.29 210.25
Septic Tank IN 210.01 210.00
Septic Tank OUT 209.75 209.75
Pump Chamber IN 209.62 209.00
Pump Chamber OUT 209.47
Distribution Box IN 213.77
Distribution Box OUT 213.60
Lateral 1 INV 211.00 210.84
Lateral 1 TOP 211.22 211.30
Lateral INV 212.40 212.24
Lateral 2 TOP 212.59 212.70
Lateral 3 INV 213.69 213.54
Lateral 3 TOP 213.84 214.00
Top of wall 210.13
1600 Osgood Street,North Andover,Massachusetts 01845
Phone 978.688.9540 fox 978.688.8476 Web www.town0northandoverarn
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PUBLIC HEALTH DEPARTMENT
Community Development Division
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 --
Waterline 10 10 101
❑ Private drinking well 75 1001 50
❑ Irrigation well 75 100
❑ Surface Water 25 50
® Bordering Vegetated Wetland ,
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
1 Suction line 222(2)
Z 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
1600 Osgood Street,North Andover,Massachusetts 01845
Phone 978.688.9540 Fax 978.688.8476 Web www.townofnorthandover.com
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PUBLIC HEALTH DEPARTMENT
(ommunity Development Division
❑ Drains (Other)Foundation 10(5) 20(10)
❑ Drywells 20 25
1600 Osgood Street,North Andover,Massachusetts 01845
Phone 978.688.9540 Fax 978.688.8476 Web www.townofnorthandover.com