HomeMy WebLinkAboutMiscellaneous - 236 GRAY STREET 4/13/2004 k: A a_�
CHECKLIST FOR NORTH ANDOVER r S
Job
SEPTIC SYSTEM PLANS
The following is a checklist that incorporates all Title 5 and local regulations for septic plans.
Name of Applicant: :. / Name of Designer: f
el
Plan Date: Z3 C, Revision Date: Date of Review: 2 Zj -7�/C,
Property Address: / rJ ,� Map: d t Lot:
BOH Reviewer: �� e- Type of PIa ne or upgrade):
Number of Bedrooms: — gpd) Garbage Disposal Allowed:
General Information: N.A. =North Andover Septic Regulations Other numbers refer to Title 5
OK Problem N/A
Street number and map/lot-220(4)(u)
Maximum scale of 1 "=40'for plot plan -220(4)
Maximum scale of 1 "=20'for profile and component details-220(4)
1 Legal boundaries of the facility being served-220(4)(a)
Names of abutters from recent tax map- NA 8.02j
Number of bedrooms,design calcs.,-NA 8.02i
+— Name&address of record owner&applicant- NA 8.02k
Name&address of designer-NA 8.021
Holder and location of all easements-220(4)(b)
Date plan drawn&any revision date- NA 8.02m
All dwellings and buildings,existing and proposed-220(4)(c)
_ Location of all existing or proposed impervious areas-220(4)(d)
✓ All distances on site plan—NA 8.03a-c
Elevation,of proposed driveway-NA 8.02t
Location and elevation of foundation drain-NA 8.02y
Location and dimensions of the system incl. reserve(new const.)-220(4)(e)
Limits of excavation of leach area on site plan-NA 8.02z
Locus plan-220(4)(t) (Not to scale)
North arrow-220(4)(g)
Existing and proposed contours-220(4)(g)
Locations and logs of deep holes-220(4)(h)
Locations and logs of percolation tests-220(4)(i)
Date(s)of soil testing-220(4)(h)&(i)
Existing grade elevation of each deep hole-220(4)(h)
Elevation of percolation tests—N.A. 8.02n
Name of approving authority representative-220(4)(h)&(i)
Name of soil evaluator-220(4)0)
Soil logs and perc test logs match BOH records
Locations of waterlines, drains,and subsurface utilities-220(4)(m)
Observed and adjusted g.w. elevation in the vicinity of the system-220(4)(n)
Complete profile of the system to scale-220(4)(o),NA 8.02c
Cross section of leaching facility-NA 8.02w (Not to scale)
Location of benchmark(s)within 50-75 feet of facility-220(4)(q)
Note listing all variance requests with proper citations-220(4)(p)
�� Local upgrade approval request form submitted-403(1)
2
Original R.S./P.E. stamp, signature&date-220(1)&(2)
P.E., discipline specified within stamp. MGL C. 112 s. 81M
sfc. supplies(whn 400'),pub. wells(w/in 250'),pvt. wells(w/in 150')-220(4)(
_ Location of watercourses,wetlands,wells, etc.Win 150'of system—NA 8.02r
Wetland disclaimer—NA 8.02s
RLS plan reference&certification required(prop line setbacks)-220(3)
Plan contains designer's certification statement
Use approvals/standards checked for I/A system-DEP does.,
, - Perc rate>30 MPI-not allowed for new,LUA for upgrade-245(1)&('3)
- Perc rate> 60"1-must use modified tight tank or 11A technology-245(4)
Proposed system qualifies as"shared"system-002(definitions)
Flow is over 2,000 gpd-No RS. allowed-220(1)
Design flow was set in accordance with code-203
Existing system location and note on proper abandonment-354
Leaching facility at least 1' above Base Flood elevation—NA 9.05
All piping Sch 40 minimum—NA 10.01
Basement floor minimum V above groundwater elevation—NA 5.04
Foundation drain present with elevation—NA 8.02y
On-site Soil and Groundwater Review
OK Problem N/A
Proper deep observation hole logs on plan-220(4)(h)
All deep holes and peres shown, including aborted tests—NA 8.02n
Soil evaluation forms submitted within 60 days of field work-018(2)
Proper percolation test log-220(4)(i)
Ample deep observation holes in primary disposal area(minimum 2)- 102(2)
Ample deep observation holes in secondary disposal area(minimum 2)- 102(2)
Ample perc testing(one in each disposal area,3 in prim.>2,000 gpd)- 104(4)
Deep hole testing conducted within two years—NA 7.05
Hole Identification Numbers:
ground elevation el.
acceptable soil el.
Leach facility invert el.
ground water el.
refusal el.
bottom of leach facility el.
thickness of acceptable soil
before&after soil R&R
separation to groundwater
separation to refusal
soil class
2
3
perc rate
loading rate
septic tank below g.w. table (yes or no)
pump tank below g.w. table (yes or no)
l.f in fill -255(l)
Setback Distances(Given in feet) 15.21 1
YES NO Is the lot in the Lake Cochiewick Watershed? NA 6.00&5.02
OK Problem N/A
Septic Tank Leach Facility
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
c--"Private drinking well 75 100
Irrigation well 75 100
Wetlands 75 100
Public well 400 400
Wetlands bordering surface 150 150
water Supply or trib.
(in Watershed)
-' Trib. To Surface Water supply 325 325
Reservoirs 400 400
�---- 'Tributaries to reservoirs 200 200
Drains(wat. supply/trib.) 50 100
Drains(intercept g.w.) 25 50
Foundation drains 10 20
Drains(Other) 5 10
Drywells 20 25
Downhill slope 15'to 3:1 slope
3
4
w/o barrier
Building Sewer
OK Problem N/A
w ' Grease trap required for certain uses(check 230 for details)
Pipe diameter listed(4"minimum) 222(1)
Pipe schedule listed-222(3)
Pipe cast iron or Sch 40 PVC-NA 11.02
Watertight joints specified-222(3)&(4)
- Pipe laid on compact,fin base-222(5)
Pipe laid on continuous grade in straight line-222(7)@
�- Cleanouts precede all changes in alignment and grade-222(8)
Cleanout provided every 100 feet-222(8)
e Manhole at any 90 degree alignment change-222(8)
Invert elevation at building: ' ,1d. t--.z
Invert elevation at septic tank: 2.eD i
Length of run: /e '
Slope: r1 L (minimum of 0.01 -0.02 desired)-222(6)
10'offset to private well or suction line-222(2)
Septic Tank
OK Problem N/A
Tank is accessible-228(3)
�— No structures above tank-(228(3)
�-� Tank can accommodate both primary&reserve-NA 9.04
200%of flow(required&provided given. 1500 min.)-220(4)(fl&223)(1)(a)
2-3"drop from inlet to outlet-227(5)
=- Minimum of 4'liquid depth-223(2)
^ 3"air space above teesibaffles(minimum)-227(4)
4 9"air space above flow line(minimum)-227(4)
Tees are not to be replaced by baffles-227(1)
Tees extend 6"above flow line-227(1)
- Inlet tee extends 10"below flow line(minimum)-227(6)
Outlet tee extends 14"below flow line(more for deeper tanks)-227(6)
Gas baffle installed on outlet-227(4)
Access manhole cover above center of tank&each tee(except 2 compart)
228(2)
--'' 3-20"manholes-228(2)
�--� 1 childproof 24"riser/manhole w/in 6"of final grade if<1000gpd-228(2)
Inlet and outlet tees on center line-227(1)
Soil compaction below tank specified(if soil is non-native)-221(2)
6"of<=3/4"stone beneath tank specified-221(2)&22 8(1)
If> 1,000 gpd AND not a single fam. dwell.must be 2 tks or 2 comp.-223(1)(b)
If plan specifies disposal must be 2 tanks in series or 2 compart.tank-223(1)(c)
Buoyancy calcs.required if tank at or below water table-221(8)
Tank is watertight-221 (1)
9"of cover over tank(minimum)-228(1)
�- H- 10 loading(min.)-H-20 if traffic-226(3)
_t r Top of tank<=36"below grade-221(7)
-' All pumping to tank(if applies)in accordance with-229
Tank is set to keep old system in service during install if possible
4
5
Tight Tank(Check here if not present: )
OK Problem N/A
500%of design flow or 2000 gallons provided-260(2)(a)
3-20"manholes-228(2)
Soil compaction below tank specified(if soil non-native)-221(2)
6"of<=3/4"stone beneath tank'specified-221(2)&228(1)
Buoyancy calcs.Required if tank at or below water table-221(8)
Tank is watertight-221(1)
9"of cover over tank specified(minimum)-228(1)
H-10 loading(min.)-H-20 if traffic-226(3)
Top of tank<=36"below grade-221(7)
All pumping to tank(if applies)in accordance with-229
AN alarm set at 3/5 tank capacity-260(2)(c)
Min. 1-24"frame w/cover at finished grade-228(2)(f)
Year round access for pumping-228(2)(g)
Distribution Bog(Check here if not present: )
OK Problem N/A
Inlet elevation: `"- Y f
Outlet elevation: �5 , e
0.17'drop from inlet to outlet(minimum)-232(3)(b)
6"sump(minimum)-232(3)(e)
.... All outlets at same elevation-232(3)(b)
Outlet pipes laid level for first 2 ft. -232(3)(c)
Pipe Sch 40-NA 10.01
Number of outlets: Number of laterals:
Size of outlets:
Inlet baffleltee min. 1"over outlet invert for all d-boxes-232(3)(a),
`? Soil compaction below distribution box specified(if soil is non-native)-221(2)
6"of stone beneath distribution box specified-221(2)
Box is watertight-221 (1)
6 Top of box<=36"below grade-221(7)
Buoyancy calculations required if box is at or below water table-221(8)
Pump Chamber(Check here if not present: )
OK Problem N/A
Volume specified: 220(4)(r)
Pump on elevation- 220(4)(r)
Pump off elevation: 220(4)(r)
Alarm on elevation: 220(4)(r)
Number of cycles per day-220(4)(r)(also 254(l)(d)if gravity from d-box)
Minimum 2"delivery line to d-box if gravity-254(1)(c)
Pressure dosed l.f if flow>=2,000 gpd-254(1)(a)&254(2)(a)
Cycles per day is consistent with chamber volume-23 1
Volume calculations include flowback volume-2') 1(2)
5
6
24 hour storage capacity above pump on elevation-231(2)
Number of pumps: 2 if system serves>2 dwelling units-231(6)
Capacity of pump(s)- gpm @ 'TDH-220(4)(r)
Pump can pass 1 1/4"solids(minimum)-231(7)
Pump controls specified-220(4)(r)
Alarm equipment specified-231(2)
Alarm is in building and powered on separate circuit from pump-2') 1(9)
Pump sequence correct(off-lead on-lag on-alan-n on)-231(8)
Pump performance curves included-220(4)(r)
Manual operating switch-NA 12.01
Check valve,bleeder hole-NA 12.01
1 childproof;24"riser/manhole to final grade-231(5),
Soil compaction beneath pump chamber specified(if soil is non-native)-221(2)
6"of<=3/4"stone beneath chmbr. specified-221(2)&228(1),
Buoyancy calculations if chamber is at or below water table-221(8)@
9"of cover over chamber(minimum)-228(1)
H 10 loading(min.)-H-20 if traffic-226(')),
Chamber is watertight-221 (1)
Top of chamber<=36"below grade-221(7)
Leaching Facility(general-complete for all designs)
OK Problem N/A
50%larger if garbage disposal-240(4)
Trenches to be used whenever possible-240(6)
No vehicle or imperv. area above 1.£unless unavoidable-240(7);NA 13.02
4. Vented if under impervious cover-241 (1)
Vented through same pipes as distribution system-241 (1)(a)
c Vent protected from precipitation/animal entry-241 (1)(b)
-' Vent is placed beyond traffic or impervious area-24 1 (1)(c)
All lines connected to vent if bed or trenches-241(1)(d)
9"cover over peastone-240(9)
Reserve area provided(new construction)-248(1)
Reserve 4' from primary leach area—NA 9.04
4'(5'if perc rate<=2 MPI)separation to g.w. -212(a)&(b)
` 4'(down to 2'with variance or I/A-upgrades only)of natural soil under 11
GW separation is adjusted to highest existing grade if facility cuts into a hillside
Pipe slope minimum of 0.005-251(9)
Require 5'removal and replacement if in fill-255(5)
Top of leach facility<=36"below grade-221(7)
Final grade over It minimum 0.02 ft/ft-240(10)
Surface&subsurface drainage away from 11 -240(1 1)&245(5)
Minimum design flow 440 gpd without deed restriction—NA 13.01
✓� 3:1 slope where grading required-255(2)
Toe of fill slope stops 5' from property line or swale installed-255(2)
Impermeable barrier if<3:1 slope or< 15 feet to—3:lslope-255(2)
Impermeable barrier/retaining wall poured concrete—NA 9.02
Retaining wall stamped by P.E.-255(2)(b)
�- Top of retaining wall>=top of peastone elevation-255(2)(0
10'offset from edge of leach facility to edge of ret.wall-255(2)(g)
v, Pere test(s)done in most restrictive layer- 104(2)
Pere test 4' below leaching elevation—NA 7.06
Design flow listed and required/provided leach area given-220(4)(f)
Leach pipes SCH40 PVC—NA 10.01
Leach pipes minimum 4"diameter except for dosed system—NA 14.04
6
7
Leach lines capped,vented, or connected together-251(9) "!
Pressure dosing guidance followed if pressure distribution-254(2)(c),
Pressure dosing required over 2,000 gpd or with I/A remedial use-231(1)
Leaching Trenches(Check here if not present: )
OK Problem NIA ,
` K Number of trenches:
Minimum of 2'trenches''-NA 9.01(2
Depth of trenches(max'eff.2'): -247(l)
Width of trenches(2'min.,4'max.):_31 ,s -251 (1)(b)
Length of trenches(100'max.): 5 5 1 (1)(a)
Trenches are vented(when>50')-251 (11)
Trenches follow contour lines-251(2)
Trench spacing 3 times effective width or depth minimum-251 (1)(d)
In fill or reserve between trenches, 10' min.-NA 14.01& 14.03
Available leach area given(Min. 500 s.f.)-NA 9.01(2)
Bottom=L S 5 x W '3, x# _ 3 J'S s.f.
Sidewall=Lam_x D I x# '2_.. x 2= z- a s. f.
{� Effective leach area given
Loading factor: 17 `Y O
Effective area=total area G 6
4 s.f.x LTAR ,'7`` _ /V T g/day
Effective area is>=design flow of facility being served
2"of 1/8"- 1/2"2x washed peastone.-247(2)
Trench depth of 3/4"to 1 1/2"double washed stone-247(1)
Leaching Pits(Check here if not present: )
OK Problem N/A
#of pits/pit systems: (dosing chamber if>1,231 (1))
Dimensions of each pit or system: L W D
Depth of pits(max eff.2'): -253(1)(a)
Available leach area given
Bottom=L x W x#of systems= s.f.
Sidewall=L+W x D x 2 x#of systems= s.f
Total area=bottom +sidewall = s.f.
Effective leach area given
Loading factor:
Effective area=total area s.f.x LTAR
Effective area is>=design flow of facility being served
Minimum of pits at least 13'X16' —NA 9.01(3)
Distribution for galleries/chmbrs. in trench config. -pipe every 20'-253(6)
Distribution for galleries/chmbrs. in bed config.-ea.pipe serves<=40 s.f-253(6)
Spacing-2 times the effective width or depth(the greater)-253(1)(c)
2"of 1/8"- 1/2"2x washed peastone.-247(2)
3/4"to 1 1/2"double washed stone-247(1)
Each pit has at least one 20"access cover.24"Cl to grade over 2,000 gpd
-253(3)
Surrounding aggregate thickness between 1'(min.)and 4'(max.)-253(1)(b)
Vents,if necessary,extend under covers of pit(s)-241 (e)
Leach Fields(Check here if not present: )
OK Problem N/A
Number of fields: (need dosing chamber if> 1,231 (1))
7
8
Length(100' max.): -252(2)(b)
Width:
Total area: L x W = s. f.
Minimum 900 square feet-NA 9.01(1)
Distribution lines connected with solid pipe—NA 15.01
Effective leach area given
Loading factor:
Effective area=total area s.f x LTAR = g/dav
Effective area is>=design flow of facility being served
Minimum of two distribution lines-252(2)(a)
6'line separation(max.)-252(2)(d)
4'maximum separation from edge of field to line-252(2)(e)
10'minimum separation between adjacent leach fields-252(2)(f)
Between 6"and 12"of 3/4- 1 1/2"stone beneath field-252(2)(g)&247(2)
2"of 1/8"-1/2"2x washed peastone.-247(2)
Final Grading
OK Problem N/A
Slope over leach area minimum of 0.02 feet/foot—240(10)
Grading shall divert drainage away from leach area—240(l 1)
Grading slopes away from dwelling
5/24/01
8