HomeMy WebLinkAboutCertificate of Compliance - 280 GRAY STREET 8/16/2005 Town of North Andover
Office of the Health Department
a �
Community Development and Services Division
400 OSGOOD STREET
North Andover,Massachusetts 01845 9'�ss
gcwus
Susan Y. Sawyer,REHS/RS 978.688.9540-Phone
Public Health Director 978.688.8476-Fax
so
. uqust 16, 2005
This is to certify that
the individuarsubsurface disposarsystem
Repaired ® TuCCS'ysterrz�f�
by
Cram WaeCty
At
.Got 1 Gray Street
North Andover, WA 01845
9fas been installed in accordance with the provisions of Titre V of the State Sanitary Code and
with the North Andover Woard of 3-fearth regulations.
The Issuance of this certificate shalt not be construed as a guarantee that the system will
function satisfactoriry.
/ v
S � Sawer,Y y 1�,f lqu
public Yfearth(Director
BOARD OF APPEALS 688-9541 BUILDING 688-9545 CONSERVATION 688-9530 HEALTH 688-9540 PLANNING 688-9535
TOWN OF NORTH ANDOVER SEWAGE DISPOSAL SYSTEM
INSTALLATION CERTIFICATION
The undersigned hereby certify that the Sewage Disposal System constructed;
( )repaired;
by �• � �
located at
was installed in conformance with the North Andover Board of Health approved plan,
System Design Permit# , plan dated , with a design flow
of gallons per day. The materials used were in conformance with those specified
on the approved plan; the system was installed in accordance with the provisions of 310
CMR 15.000, Title S and local regulations, and the final grading agrees substantially with
the approved plan. All work is accurately represented on the As-built which has been
submitted to the Board of Health.
Bed inspection date:
Engineer Representative
Final inspection date:
Engineer Representative
Installer: /U
A—
Lic.#: Date:
Engineer: Date:
'TOWN OFNORTH ANDOVER
4,
Office of("OMMUNFIN DEVE'LOKMENT AND SERVICES
1-1EA1,11-1 DEPARI'IWENT'
400 OSGOOD STREE,r
NOI�'I'llANI)()VER, MASSA(.,'II(JSE-1"I-SO1845 SAC U.
Susan Y. Sawyer, REHS/RS 9 78.68 .9540 Mime
I'Liblic Health Director 978A8,9542 FAX
SEPTIC SYSTEM CONSTRUCTION NOTES
ADDRESS: Lot 1 Gray Street MAP: LOT:
INSTALLER: Skip Waeltv 978.664.2126
DESIGNER: Joe Serwatka
PLAN DATE: 5/3/05
BOH APPROVAL DATE ON PLAN: 6/6/05
DATE OF BED BOTTOM INSPECTION: 6/22/05
DATE OF FINAL CONSTRUCTION INSPECTION: f.
DATE OF FINAL GRADE INSPECTION:
SELECT SYSTEM TYPE
DGRAVITY DISTRIBUTION
PRESSURE DISTRIBUTION
PRESSURE DOSING
HOLDING TANK
ADVANCED TREATMENT
OTHER
COMPONENT SUMMARY FROM PLAN
DGALLON TANK = 1500
LOADING OF SEPTIC TANK
GALLON PUMP CHAMBER =
LOADING OF PUMP CHAMBER
TYPE OF SAS =
DDIMENSIONS AND DETAILS OF SAS:- 60x28 — Infiltrator Trenches
SITE CONDITIONS
El Existing septic tank properly abandoned
1:1 Internal plumbing all to one building sewer
El Topography not appreciably altered
Comments:
Page 1 of 4
TOWN OFNORT'll ANDOVER
Office of COMMUNITY DEVEL011MENT AND SERVICES
I-IFALI'll DEPARTMENI'
400 OSGOOD STREET
z;
NORTH ANDOVE.R, MASSACHUSEITTS W845 & ..
Susan Y. Sawyer, RFAIS/RS 978.6W954 Phone
Public Health Director 978,6W9542 FAX
SEPTIC TANK
DBottom of tank hole has 6" stone base
❑ Weep hole plugged
[D 1500 gallon tank has been installed
(H-10 or H-20) (monolithic or 2 piece)
❑ Water tightness of tank has been achieved
(Visual or Vacuum Test or Water held for 24hrs)
El Inlet tee installed, under access port
El Outlet tee (gas baffle or effluent filter) installed, under
access port
❑ 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:
PUMP CHAMBER
El Bottom of tank hole has 6" stone base
❑ Weep hole plugged
❑ gallon Pump Chamber installed
(H-10 or H-20) (monolithic or 2 piece)
1:1 Inlet tee installed, under access port
❑ Pump(s) installed on stable base
❑ Alarm float working
❑ Pump On/Off float working
❑ Drain hole in pressure line
inch cover to within 6" of final grade installed over
one access port
❑ Water tightness of tank has been achieved
Visual or Vacuum Test or Water held for 24 hrs
1:1 Hydraulic cement around inlet & outlet
Comments:
Page 2 of 4
TOWN OF NORTH ANDOVER
Office ol'COMMUNITY DEVE1,011MEVI" AND SERVICES
1-11;,'AUF11 DEP.AR1'ME'dN1"'
400 OS(,,001) STREET
NORTH ANDOVER, MASSACHUSFITTS 01845 CH.
Susan Y. Sawyer, RF14S/RS 978.688,9540 Phone
Public I lealth Director 978.669542 FAX
D-BOX
❑ Installed on stable stone base
❑ Inlet tee (if pumped or >0.08'/foot)
1:1 Hydraulic cement around inlet & outlets
❑ Observed even distribution
❑ Speed levelers provided (not required)
Comments:
SOIL ABSORPTION SYSTEM
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
❑ 3/4-1 Y2" double washed stone installed
❑ 1/8-1/2" (peastone) double washed stone installed
El laterals installed and ends connected to header (and
vented if impervious material above)
❑ Orifices @ 5 & 7 o'clock positions
❑ Gravelless disposal systems: type, number and
location as per plan
❑ Elevations of laterals installed as on approved plan
El 40 Mil HIDPE barrier installed
El Retaining wall (boulder/ concrete /timber/ block)
❑ Final cover as per plan
Comments:
PRESSURE DISTRIBUTION
❑ inch manifold
laterals installed with end sweeps
size:
material:
El Squirt test ft in height
❑ Equal distribution to all laterals
❑ orifice size inch as per plan
Comments:
Page 3 of 4
=7�,
TOWN OF NORTH ANDOVER 00! f6
Office, ol'(20MMUNFTY DEVE1,01)MEXI' AND SERVICE'd S
11EA1,111 DEPAwrMEN'T
'001) STREET
4000S(w
N )RTI I ANDOVER, MASSAC1IUSE-11-S 01845
Susan Y. Sawyer, REIIS/RS 978M8�9540 Phone
Public I lealth Director 9'78.688.9542— FAX
CONTROL PANEL
Alarm & Pump are on separate circuits
El Alarm sounds when float is tripped
Location of control panel:
Rated for exterior if placed outside
Comments:
SYSTEM ELEVATIONS
Benchmark:
Rod at Benchmark:
Height of Instrument:
INVERT ON DESIGN PLAN ELEV@ TOP OFPIPE INVERT ELEVATION
Building Sewer OUT
Septic Tank IN
Septic Tank OUT
Pump Chamber IN
Pump Chamber OUT
Distribution Box IN
D-Box OUT Manifold
Lateral 1 HIGH
Lateral 1 LOW
Lateral 2 HIGH
Lateral 2 LOW
Lateral 3 HIGH
Lateral 3 LOW
Lateral 4 HIGH
Lateral 4 LOW
Lateral 5 HIGH
Lateral 5 LOW
Page 4 of 4
♦ „t" R.^;"a fry C �,,;.,v �` � �` '
AS-BUILT CHECKLIST
LOT NUMBER, STREET NAME
ASSESSORS MAP & PARCEL NUMBER
LOT LINES & LOCATION OF DWELLINGS
LOCATIONS & DIMENSIONS OF SYSTEM,
INCLUDING RESERVE
TIES TO LOT LINES &DWELLING, WELLS
a. FROM SEPTIC TANK.
b. FROM LEACH AREA
LOCATIONS OF DEEP HOLES &PERC
TESTS
ELEVATIONS OF DISPOSAL SYSTEM
TOP OF FDN ELEVATION
LOCATIONS OF WELLS, DRAINS, WATERCOURSES
WITHIN 150' OF SYSTEM
LOCATION OF WATER, GAS, ELECTRIC LINES, CABLE
/ DISTANCES FROM CORNERS OF HOUSE TO CENTER OF
j TANK & D-BOX
ORIGINAL STAMP & SIGNATURE
l
IMPERVIOUS AREAS - DRIVEWAYS , T�
NORTH ARROW
LOCATION & ELEVATIONS OF BEN(
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r r f l
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a. d.✓
r
Ap
/ em
�mn ,
DelleChiaie, Pamela
From: DelleChiaie, Pamela
Sent: Tuesday, August 02, 2005 3:42 PM
To: Serwatka Joe (E-mail)
Subject: Lot 1 Gray Street
Joe,
I think Susan already spoke with you about some missing information on the As Built:
Missing
C.D.E.
No Benchmark
Map & Lot#'s
Your fax number never seems to work, so I have been mailing you the letters, etc. The message says busy/no response.
gas!Ragwads,
PwiyaBw DBBBBG�liiA!¢
Health Department Assistant
Town of North Andover
400 Osgood Street
North Andover,MA o1845
978.688.9540-Phone
978.688.8476-Fax
http://www.townofnorthandover.com
healthdept @townofnorthandover.com
t
CHECKLIST FOR NORTH ANDOVER
SEPTIC SYSTEM PLANS
.Sob
The following is a checklist that incorporates all Title 5 and local regulations for septic plans.
Name of Applicant: Name of Designer:
Plan Date: Revision Date: Date of Review:
Property Address: Map: Lot:
BOH Reviewer: Type of PIan(new 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)
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. 8 1 M
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)
Plan contains designer's certification statement
Use approvals/standards checked for I/A system-DEP does.,
Pere rate>30 MPI-not allowed for new,LUA for upgrade-245(1)&('3)
Perc rate> 60 MIT-must use modified tight tank or F-4 technology-245(4)
,Proposed system qualifies as"shared"system-002(definitions)
Flow is over 2;000 gpd-No KS. 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 F above Base Flood elevation—NA 9.05
All piping Sch 40 minimum—NA 10.01
Basement floor minimum 1' 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 LakeCochiewick 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
Private drinking well 75 100
Irrigation well 75 100
Wetlands 75 100
Public well 400 400
Wetlands bordering surface 150 150
water Supply or Crib..
(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
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
Watertight3oints specified.-22-2(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)
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)0&223)(1)(a)
2-3"drop from inlet to outlet-227(5)
Minimum of 4'liquid depth-223(2)
3"air space above teesibaffies(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 compart)
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 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)
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 Tanis(Check here if not present: )
OK Problem N/A
500%of design flow'ot 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#ank'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:
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 baffiehee 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)
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(1)(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 swifch-NA 12.0.1
Check valve;bleeder hole-NA 12.01
1 childpropt,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 11 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)
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 1.£
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 11 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)(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
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 N/A
Number of-trenches:
Minitnun:of 2 trenches'-NA 9.01(2)
Depth of trenches(mak'eff 2'): 247(1)
Width of trenches(2''min.,4'max.). -251 (1)(b)
Length of trenches 0`00'max.) -25 1 (1)(a)
Trenches are vented(when>50')-251 (11)
T 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 x W X# = s.f.
_ Sidewall=L x D x# x2= s. f.
Effective leach area given
Loading factor:
Effective area=total area s.f.x LTAR Q _ 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'): -25
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 = g/day
Effective area is>=design flow of facility being served
Minimum of 2 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 P(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: r. )
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(11)
Grading slopes away from dwelling
5/24/01
8