379 Disposal System Design PROPOSED DOESTIC SUBSURFACE DISPOSAL SYSTEM DESIGN
Prepared For: R A L L I AI M o O M A I
Location: : 7 9 C Q S I nl G .` T ( I f i HO ; l Fj /A r-, f -1 C 'i
Number of Bedrooms: Garbage Disposal:
LEACH AREA DESIGN
.j Bedrooms x 2 persons/bedroom = & persons
n Persons x 55 gallons of wastewater/person/day = ., 2 0 total gallons of
wastewater/day. X I. 3 - A 9 .5—
Percolation Rate: .2 ,b min/inch
Gallon of wastewater/square feet of leach area for a Percolation Rate of:
2,0 min/inch = .2 . y-i7 Gal/SF Sidewall Area
_ ) -O Gal/SF Bottom Area
* If a leach bed is to be installed, no sidewall is allowed.
* If percolation rate exceeds 20 min/inch, no bottom area is allowed.
- SEPTIC TANK -
* WITHOUT GARBAGE DISPOSAL:
cat cis—
S Gallons of wastewater/day x 150% = 74 3
capacity of septic tank.
RECONOENDED: Ls-0 O Septic Tank
* In no case will the septic tank be less than 1,000 gallons (effective liquid capacity).
REQUIRED effective liquid
** FITH GARBAGE DISPOSAL:
Gallons of wastewater/day x 200% - REQUIRED effective liquid
capacity of septic tank. -
RECOMMENDED: Septic Tank
** In no case will the septic tank be less than 1,500 gallons (effective liquid capacity)
ALN1ER HUNTLEY, JR., & ASSOCIATES, INC.
LAND SURVEYORS - PROFESSIONAL ENGINEERS - LANDSCAPE ARCHITECTS
LEACHING FIELD DESIGN
USING BOTTOM AREA ONLY:
4 °1 C Gallons (Total Daily Flow) 7 ) gal/SF = 4g S SF Leaching Field
(REQUIRED)
* With Garbage Disposal:
SF Leaching Field x 1.5 - SF Leaching Field
(REQUIRED)
7 2 0 SF Leaching Field (Designed): 4o ' Long x ) F% ' Wide
SIDEWALL AREA:
LEACHING TRENCH DESIGN
Gal/SF x ' of effective depth x 1' length a 2 sides =
of trench (sidewall).
BOTTOM AREA:
Total of
trench
Gal/SF x
Gal/I.F
' wide x 1' length = Gal/LF of trench (bottom).
Gal/Day (flow)
* With Garbage Disposal:
Gal/LF (Sidewall)
Gal/LF (Bottom)
TOTAL Gal/LF of trench
Total Gal/Day/LF = LF of trench
(REQUIRED)
IF of trench x 1.5 = LF of trench
(REQUIRED)
LF of trench (Designed): Trenches, ' Wide x ' Long
with ' Effective Depth.
ALMER HUNTLEY, JR., E% ASSOCIATES, INC.
SURVEYORS • ENGINEERS • PLANNERS
5EPT/C TANK
O/S TR/SOTAvN ao: TO
aE SET LEPEL . SUNP
Ib Lee 6`
SEWER PIPE - S/ZE AS NOTED ON PLAN–
ALL ✓O/NTS TO CE P/ATERT/O/?-
SLOPE • IAA/PT (N/N) •
HEADER PIPES FROM' THE O.arR/80T/d4/
OOX 7V ESE NON-PERFORA7E0 ANO
LA/0 LEVEL FOR AT LEAST ONE
LENONT OF P/PE
/ALAN 11/EW
—J
,e% A/N ANSA/ 6RAOE7
Ad. 1v. !
•
1.4'PER/59R4760 P/PE - SLOPE -cooS/FT
EXIST/• G SWOONO
5/OE Y/EW
0077OM' OF FIELD TO at HORIZONTAL
4' N/N. TO 64OONO /PATER Oft /NPERY/O!/S DYER
E X(A(/N) F/N/SN 6leiaE
12'COVER (HW.)
7E27-NW
(6 IAX)
6°N/N. EFFECT/YE OEPTN
€D/A. PERF
p/PE
3/4' .V /%l WASHED STONE
SECT/ON — X
ALL WORK TO SE
LONE /N ACCORDANCE
WITH THE STATE
ENY/4ONAIENTAL
CODE - TITLE S.
ALMER HUNTLEY, JR. & ASSOCIATES, INC.
SURVEYORS - ENGINEERS - PLANNERS
125 PLEASANT STREET
NORTHAMPTON , MASS.
PROJECT NO.
(SHEET OF
310 CMR: DEPARTMENT OF ENVIRONMENTAL QUALITY ENGINEERING
15.02: continued
(19) a of S stem. Except as provided In 310 CMR 15.18, an
billy' ua sewage isposal system shall consist of a septic tank dis-
charging its effluent Co a suitable subsurface sewage disposal area as
tar described. Where buildings are served by more than one
system, each system shall consist of a septic tank discharging
uent to V suitable subsurface sewage disposal area. Separate
systems Sing its
u�aoeundry waste disposal are not recommended.
area w ere a no '�Mcindividual water ill accumullaate. Provision located In set
to minimize of surface water over the area. shall made
(16)—Cover Materiel. Earth materials used to cover subsurface sewage
earth, masonry, stumps, or froo construction stones, frozen dumps of
which may crush or disturb the. allgnment f pipe material. Machinery
system shall not be allowed on any part of the dlspposaal are. disposal
(T7)) !C constructs In FIE.o Where an individual sewage disposal system
ly placed and compacted to or
minimize settlement ore it shall be allowed to
settle for a minimum of 12 months whichever occurs firn. The fill
material shall •
smateri, mat m y be
a from washed
, fines,sand other matter,tiailY free from clay,
and waste cuory,construction, frozen clumps of earth, wood, tree branches.
less than 2 minutes material, and shall have a percolation rate of
fill V put in place,� sb fore and after placement. Before the
ma-
terials the area to be filled. Topsoil,brush, and and and other nova-
for a distance be removed from all areas beneath impervious and
25 feet in all dlr fate the leaching facility and
facility is above natural ground elevation �arepe�rn when the ]eachinu
be removed for 10 feet in all directions therefrom when°� a leaching
hing
facility is below natural ground elevation. No sewa sposal system
shall be constructed in fill placed upon impervious material Unless a the
requirements of 310 CMR 15.03(6) have been met.
(18) Muhl le Use. The use of a subsurface sewage disposal system
by more than one lot is prohibited.
(19) Maintenance. Every owner or disposal In which there
are any pnva en individual sewage systems, or
means of sewage disposal shall keep disposal systems in '
Proper operational condition and shall sewers such works cleaned or
repaiirred at such time as ordered by the Board of Health. u the
Board of iaege t of the premises fails to comply with such order, the
expenses N th may cause the works to be cleaned or repaired and all
shall De cur'red to be paid by the owner. Sewage disposal works
maintained in a manner that will not create objectionable
conditions or cause the works to become a source of pollution to any of
the waters of the Commonwealth.
(20) Dischar e to Surface of Ground. No sanitary
allowe to 'Sc arge or s r onto e sewage shop w
into any gutter, street,proadwa surface of the ground or ato such
material discharge onto any e' or public place; nor shall such
Y Private property,
(21) Flow Measurement. Meters, dosing counters, or other flow
measuring curter s a be Installed to record accurately the flow of
sewage when required by the Board of Health or the Department of
Environmental Quality Engineering.
(22) Reserve Area. A reserve area of at least equal capacity, suit-
able or sumsur ace sewage disposal and upon which no permanent