HomeMy WebLinkAboutCorrespondence - 350 FOREST STREET 4/14/2002 L,
25 Bridge Street, Suite 6, Billerica, MA 01821-1023
Voice (978) 667-9736 Fax (978) 671-9565
Email: nm @netway.com
Date m
Town of North Andover
Office of the Health Department
Community Development and Services Division
27 Charles Street
North Andover, MA 01845
RE: Subsurface Sewage Disposal System
Plan Review, 1770/ , ('; ,
......
Assessors Map b , Lot ;" ' Z_.
Dear Members of the Board,
Please be advised that Noonan & McDowell, Inc. has reviewed the plan dated ,
by
It is our opinion that the proposed design will meet the requirements of Title 5 and the North
Andover Board of Health `By-Laws" if the following is addressed:
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Respectfully,
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John L. Noonan, P.L.S.-P.E. u:,Fl. � - � � � a�..� _� � o..�
G:office/forms/tonarev
Land Surveyors Civil Engineers Environmental Planners
CHECKLIST FOR NORTH ANDOVER
SEPTIC SYSTEM PLANS
N&M lob 1770/
The following is a checklist that incorporates all Title 5 and local regulations for septic plans.
Name of Applicant: aL /v&: ,'> - 'J,'4 C 0 6 )Name of Designer:
.° ^ ,
Plan Date: ,N � Revision Date: Date of Review: "aw
Property Address Map: Lot: °
BOH Reviewer:'"'' Type of Plan new orgrade), °
Number of Bedrooms irt,Arssesser-as-Records: 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)
,r 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
zt 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)(0),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)
Original R.S./P.E. stamp,signature&date-220(1) &(2)
". if P.E.,discipline specified within stamp. MGL C. 112 s. 81M
sfc. supplies(w/in 400'),pub. wells(w/in 250'),pvt. wells(w/in 150') -220(4)(
Location of watercourses,wetlands,wells,etc, w/in 150'of system-NA 8.02r
Wetland disclaimer-NA 8.02s
RLS plan reference&certification required(prop line setbacks)-220(3)
m -PI"a`rt-contains-designers eerlifira�Cion
...... Use approvals/standards checked for I/A system-DEP does.,
2
Perc rate>30 MPI-not allowed for new,LUA for upgrade-245(1)&('3)
Perc rate>60 MPI-must use modified tight tank or I/A technology-245(4)
Proposed system qualifies as "shared" system-002(definitions)
Flow is over 2,000 gpd-No R.S.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 F above groundwater elevation—NA 5.04
Foundation drain present with elevation—NA 8A2y
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-01 8(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.
c.,
refusal el.
bottom of leach facility el.
thickness of acceptable soil
before&after soil R&R
separation to groundwater
separation to refusal
soil class
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
2
3
Inground pool 10 20
Slab foundation 10 10
Deck,on footings,etc. 5 10
( Waterline 10 10
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
w/o barrier
Building Sewer
OIL Problem N/A
..,, 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)
�.. Manhole at any 90 degree alignment change-222(8)
Invert elevation at building:
Invert elevation at septic tank:
Length of run:
Slope: (minimum of 0.01 -0.02 desired)-222(6)
10'offset to private well or suction line-222(2)
3
4
Septic 'Tank
OK Problem N/A
Tank is accessible-228(3)
�c 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)(f) &223)(1)(a)
2-3" drop from inlet to outlet-227(5)
Minimum of 4'liquid depth-223(2)
3"air space above tees/baffles(minimum)-227(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 compact)228(2)
3-20" manholes-228(2)
1 childproof,24" riser/manhole Win 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 compact. tank-223(1)(c)
Buoyancy talcs.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)
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
Distribution Box(Check here if not present: )
OK Problem N/A
... Inlet elevation:
Outlet elevation:
- 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 baffle/tee 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)
Top of box<=36" below grade-221(7)
~w Buoyancy calculations required if box is at or below water table-221(8)
Pump Chamber(Check here if not present: )
OK ,.,111A..`°.
Problem / °°
,. Volume specified: 220(4)(r)
Pump on elevation- 220(4)(x)
Pump
..off,e�,vatron..u.. _., ..`220(4)�r)
Alarm on elevation: 220(4)(r)
Number of cycles per day-220(4)(r)(also 254(1)(d) if gravity from d-box)
Minimum 2"delivery line to d-box if gravity-254(1)(c)
4
5
—"..
ressure dosed l.f. if flow>=2,000 gpd-254(l)(a)&254(2)(a)
. �"" Cycles per day is consistent with chamber volume-23 1
_ Volume calculations include flowback volume-2') 1(2)
24 hour storage capacity above pump on elevation-231(2)
x
Number of pumps; 2 if system serves>2 dwelling units-231(6)
"
Capacity of um
(s
gpm @ 'TDH-220(4)(r)
Pump pass 1 I/4" solid s(minimum)
-231(7)
Pump controls'specified-220(4)(r)
Alarm, equipment specified-231(2)
Nafin 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
p Y' r specified P pump grade,
1 childproof,24 riser/manhole to final
Soil compaction beneath um c�a�15e� p (if soil is non-native) -221(2)
6'of<=3/4 stone beneath, br�specified-221(2)&228(.1),
Buoyancy calcula4ons"if chamber is at or below water table-221(8)@
9" of cover,,,over chamber(minimum)-228(1)
H- 1Q,.lo"6°8ing(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 l.f.unless unavoidable-240(7);NA 13.02
Vented if under impervious cover-241 (1)
Vented through same pipes as distribution system-241 (1)(a)
Vent protected from precipitation/animal entry-241 (1)(b)
Vent is placed beyond traffic or impervious area-24 1 (1)(c)
-7777 All lines connected to vent if bed or trenches-241(1)(d)
9" cover over peastone-240(9)&° "K '�_"s^Z r 6:.°.. 0 v11 rc11'/ /t''„
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 sail under l.f.
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)
t."°°°'` Top of leach facility<=36" below grade-221(7)
m7" Final grade over 11 minimum 0.02 ft/ft-240(10)
Surface&subsurface drainage away from 11 -240(1 1) &245(5)
X'f 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–3:1slope-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)(f)
10'offset from edge of leach facility to edge of ret. wall-255(2)(g)
Perc test(s)done in most restrictive layer- 104(2)
Perc 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
Leach lines capped,vente 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)
5
6
Leaching Trenches(Check here if not present: )
OK Problem N/A
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.): -251 (1)(b)
Length of trenches(100'max.): -25 1 (1)(a)
" Trenches are vented(when>50')-251 (11)
Trenches follow contour lines-251(2)
f Trench spacing 3 times effective width or depth minimum-251 (1)(d)
In
Availa trenches,
able leach area given(Mine500 s f)n -NA 14.01& 14.03
-NA 9.01(2)
Bottom=L x W x# — s.f.
°r Sidewall=L x D x# x 2=
s.f.
7 Effective leach area given
Loading factor:
Effective area=total area s.f. x LTAR = g/day
Effective area is>=design flow of facility being served
2"of 1/8"- 1/2"2x washed peastone.-247(2)
All ,.~ Trench depth of 3/4" to 1 1/2"double washed stone-247(l)
Leach Fields(Check here if not present: )
OK Problem N/A Number of fields-,,- � (ne„�....�
ed dosing chamber if> 1,231 (1))
Length�l
00"max.): -252(2)(b)
Widtl%
Totit'l'area:L x W = s. f.
,-"Minimum 900 square feet-NA 9.01(1)
Distribution lines connected with solid pipe,".,-l^d"A 15.01 �
Effective leach area given
Loading factor:
Effective arearea s =tota'
desian a s.f x LTAR = g/dav
— g flow of facility being served
'
Minimum um ration 48"distribution lines-252(2)(a)
Cline
n(max.) -252(2)(d)
YOseparation l ne-252(2)(e)
minimum between ad leach
fields-252(2)(f)
Between 6"and 12”of 3/4-1-f/ '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 f:/office/forms/tonackitr.doe
6
N&M Jab number 1770/
TOWN OF NORTH ANDOVER.
INSPECTION CHECKLIST FOR SEPTIC SYSTEM
site �' ���'�,�� . : .� _ Final Date:
Tel:,?,�
Ihstaller: �e a
Date Yes No Initials
A. Bottom of Bed
1. Excavation to proper depth
2. With trenches, sides of excavation are beneath B horizon
1 Edge of excavation specified distance from foundation, etc.
Comments: (Use back of sheet for diagrams.)
B. Retaining Wall
1. Wall height and width as specified
2. Waterproofed
3. Wall minimum 10' to beaching facility
4. Wall meets specifications of plan
Comments:
C. Building diameter minimum 4"
2.3. Inlet Schedule
o tank.cemented
4. Slope minimum 0.01 or 1/8"per foot minimum
5. Pipe properly set on compact firm base ,, .......
6. Pipe laid on continuous grade in straight line ,.,...
7. Cleanouts precede all change in alignment and grade ~° µ
8. Manholes at any 90°change �_,_.....,.
9. 10'minimum offset to water line
Comments:
D. Septic Tank. c
1. Level °
2. 1,500 gal minimum "
3. Gas baffle present on outlet f
Q
4. Manhole to w/in 6 y, grade
ade Q,,
5. Manholes over center and each tee —e'7A 5
6. 3-20"manholes
7. Outlet line cemented
8. 2"–3" drop from inlet to outlet . .,
9. Pipe set
10. Compact base with 6"of 3/"crushed stone under tank .
11. Tank is watertight
12. Tees 12" off side of tank ,,,Mme"
N&M Job number 1770/
Comments: Date Yes No Initials
E. Pump Chamber
1.
r pipe p A? of'/4"stone underneath
Ifs from om tank compact base with
2. Minimum 2 i e to d-box if gravity system
3. 20"access manhole
4. Tank Ievel
5. Watertight
6. Tank size agrees witii,pian specification
7. Manhole to ade
8. Check valve and"', hole present
9. Alarm in building on separate circuit '
10. Alarm btions
11. Man operating switch
12. Pump delivers liquid to d-box
Comments:
F. Distribution B ,
1. D-box level ..,..,,..,
2. Minimum 0.17"(2") drop from inlet to outlet
3. Minimum 6"sump
4. Outlet pipes show equal distribution .
5. Compact base with 6"of stone beneath box .
6. Box is watertight
7. All lines cemented with hydraulic cement ...r
8. Schedule 40 pipe
9. First 2' from box laid level
Comments:
G. Soil Absorption system
1. All stone double-washed—'/4"— 1 '/2" ..,..,w.,
. .
Bucket test lane?-pea stone �,,
2. Minimum 2"of pea stone above distribution lines m� ......
3. Minimum 6"stone beneath pipe %" °" ,......
4. Distribution lines capped or connected together
5. Toe of slope stops minimum 5' from edge of property;
5a. if not, then swale,
Comments:
i
i
N&M Jab number 1770/ e,?" t7 "
Date Yes No
XWmmInitials
H. Leach Trenches �..
1. Minimum 2 trenches X„..
2. Length of trenches agrees with plan. (Max. length 1001)
3. Width of trenches agrees with plan—Minimum 2';maximum—4'.
4. Vent present if>50 feet or specified ;'
5. Minimum distance between trenches 10' ”`
6. Pipe slope minimum 0.005 or 6"per 100' �� °'
7. Depth of trenches below outlet invert minimum of 6", .. ".....
8. Pipes set on stable base.
Comments:
f{ "Q�,µ... Pr../' - Ww"WW,rn w4.i...,P F +...,M...............I,/ ,,,..._ .✓/ ,.G=L
1. Leach Field
1. Maximum length of fieldw"100'
1 2, Pipe slope minimum,,0'.'605 or 6"per 100'
3. Separation betyuen pipes 6' maximum "
m�,et�fed at end&vent enArised
4, Pipes co .
5. Separ,,t9on between adjace t�" elds 10'minimum �
6. P�pLS set on stable base""
7. Maximum 4' sepafration from edge of field to first lid....
8. Minimum two distribution lines w"°' —
Comments:
J. Leaching Pits
1. Minimum inlet e 4 7 "
2. Pits of concr
3. Sidewal tween 12"and 48"wide '"
4. Acc manholes on each pit m
5. Pips s cemented with hydraulic cement"" i
6. �.
Comments:
I , Final Grade
1. Slope over soil absorption system minimum 0.02
2. All system components covered by at least 9"soil
3. Cover soil free of stones larger than 6"
4. Grading slopes away from dwelling
5. No areas over system that may pond
6. Grading meets 3:1 slope
7. Minimum of 9" of fill graded over system
Project Request Record
Town of North Andover
Date:
Client Id:ToNA Card Id:ToNA Client/Company Name:Board of Health
Card Type-Client
Contact Name: Ms. Sandra Starr Phone: 978-688-9540
Title:Director Fax: 978-688-9542'
Address: 27 Charles Street Email: sstarr @townofnorthandover"corn
Notes
Town: North Andover
State: MA Zip Code: 01845
Other contacts if applicable:ie En nstall r�
Name: e A."6w�._ �. �w,� Phone: ��� des" � �� �"� ,..� 1 l
Title: Fax:
Address: Email:
Notes:
Town:
State: Zip Code:
Project:
Project Id: 1770 Project Title: Town of North Andover Board of Health
(JOB NO) (PROJECT NAME&STREET ADDRESS)
Manager:NOW Billing Group: 'mj-' 0' Billing Cod J:Fixed Fee."
Contract Inf ro Description far each billing grop BG/ k ur Applicant
Assessors Map Lot �"Z� Street
7..
Type ,gym
T e Of service
Office/forms/j brqutona
Town of North Andover, Massachusetts Form No.3
e HpRTH BOARD OF HEALTH /
0* ,,,4o /I .
o
DISPOSAL WORKS CONSTRUCTION PERMIT
1SSACHUSE�
Applicant I'l/eze-
l
NAME ADDRESS TELEPHONE
Site Location
Permission is hereby granted to Construct ( ) or Repair (16n Individual Soil Absorption
Sewage Disposal System as shown on the Design Approval S.S. No.
CHAIRMAN,BOARD OF HEALTH
Fee ` 'C� D.W.C. No. /21