88 West Farms RDA.pdfDan Zulawski
88 West Farms Road
Florence MA 01062
Owner:
Scale: 1 : 20'
HOMESTEAD INC.
Thomas S. Leue R.S.
1664 Cape St.
Ashfield, MA 01330
413-768-2968
Date:
Revision Date:
Except as Noted
Plan to Upgrade
Existing Septic System
Vegheat@gmail.com
7/10/2023
7/28/2023
Revisions: 7/28/23: raised field, clarified details. Added wetlands information.
41'1'1'8'Soil Observation Results
Date Conducted 6/1/23
Conducted By Ronald Laurin
Witnessed By Charlie Kaniecki
Test Pit 1 Surface Elevation:90 .9
Depths Soil Horizon Color Gravel/Cobbles Texture ESHWT
0 to 20 Fill fill
20 to 30 A 10YR 3/1 Loamy Sand
30 to 40 B 10YR 6/6 Loamy Sand
40 to 60 C1 10YR 7/6 Loamy Sand 44"
60 to 130 C2 10YR 6/4 Loamy Sand
SHGWT Elevation:87.2
Test Pit 2 Surface Elevation:90 .4
Depths Soil Horizon Color Gravel/Cobbles Texture ESHWT
0 to 15 Fill fill
15 to 25 A 10YR 3/1 Loamy Sand
25 to 35 B 10YR 6/6 Loamy Sand 35"
35 to 51 C1 10YR 7/6 Loamy Sand
51 to 95 C2 10YR 6/4 Loamy Sand
SHGWT Elevation:87.5
Shed
pr
opaneGASGASGASGA
S
GAS
Local Upgrade Approval:
Soils analysis in lieu of perc
test. 310 CMR 15.405 (1)(i).
deck over
porch
3-bedroom House
MECo 25
Assessors 35-021-001
1.56 acres
NORTH
CWCWCWCWCWCWCWCWCWCWCWCWCWCWCWCWCWCWCWCWSYSTEM CALCULATIONS Leach Field Basis
Single Family Dwelling 3 bedrooms Existing + Addition
Sewage Flow At Code Rate 330 gallons per day 310 CMR 15.203.2
Garbage Grinder not to be installed at this location.310 CMR 15.233.4
200% of Daily Flow 660 gallons 310 CMR 15.223.1a
Septic Tank Capacity 1500 gallons 310 CMR 15.223.1a
Measured Perc Rate 8 min. per inch from lab analysis
Design Perc Rate 8 min. per inch 310 CMR 15.242.1a
Soil Type Class I from Perc Test
Loading Rate 0.66 gallons/sq.ft./day 310 CMR 15.242.1
Leaching Area Required 500.0 square feet Flow/Loading Rate
Conventional Space Required 32.4 feet square Leaching Area + sand
Minimum Basal Area 300.0 square feet 40% reduction with Eljen
Infiltration Technology:Eljen GSF judgement
Model Used:B-43 Field Configuration judgement
Length of Chamber:48 in.specifications
Width of Chamber:36 in.specifications
Overall height:7 in.specifications
Invert height:7 in.specifications
Effective Leach Area/Chamber:26.72 sq. ft./module DEP X280580
# Modules required:20 Design Manual Page 14
# Modules provided:20 judgement
# of Rows:2 judgement
# Modules per Row:10 judgement
C33 Sand Between Rows:1.0 foot to meet minimum sq. ft.
C33 Sand Outside Rows:0.5 foot to meet minimum sq. ft.
Total Field Width:8.0 feet modules + sand
Total Field Length:41.0 feet modules + sand
Total Actual Basal Area:328.0 square feet Sand length x width
Net Calculated Capacity:330.0 gallons per day Manuafacurer's Rating
Owner Contact:
Dan Zulawski
88 West Farms Road
Florence MA 01062
danzulawski@comcast.net
413-658-8121
0 50 FTSCALE BAR
Local Upgrade Approval Applied for:
2 foot separation to groundwater. 310 CMR
15.405 (h), modified by DEP approval.
SYSTEM REQUIREMENTS AND SPECIFICATION
1.General
Board of Health approval required before licensed contractor installs system. Obtain Disposal Works Permit. All construction to be in accordance with Title 5 (310 CMR 1500) of the State Environmental Code.
Contractor responsible for verifying all dimensions, elevations and conditions. Contact System Designer immediately if discrepancies are found. Alternatives and clarifications to these specifications should be discussed with the System Designer in advance at 413-628-4533. The selected Contractor
to show documentation of official training in the Eljen system installation technology. Property lines are approximate, based on best available information. Any required tree cutting is the responsibility of the Contractor. All wells within 150' of system are shown on the drawing. This septic system is not
designed for a garbage grinder in the kitchen, do not connect one to the system or all implied warranties are voided. DEP Remedial Use Approval Updated 9/3/21. DEP Standard Conditions dated 3/5/2018. Design based on Geotextile Sand Filter Corporation. Design & Installation Manual 3/2021.
The Owner to register as an amendment to the deed this alternative technology statement, provided separately, by the conclusion of this project. The Board of Health requires documentation of this statement.
2.Septic Tank
The septic tank for this project is to be Title 5 compliant. Install an outlet filter without built-in check valve. Install plastic risers with sealed plastic covers to the final surface over all three access holes. All internal piping to be Schedule 40.
3.Piping
All piping from greywater and blackwater sources to be connected to building sewer in the basement. Piping from the building outlet to the septic tank to be 4” diameter Schedule 40. All piping from the septic tank to the end of the system shall be 4” diameter, SDR-35 or better, except as noted on the
drawings. Joints are to be sealed watertight. Place magnetic detectable warning tape pre-printed “Sewer Pipe Below” or similar wording approximately 6” above all new piping and other components installed on this project, other than leaching units. Distribution box outlet pipes to be inclined downward by
1%. Cross-over pipes are not perforated.
4.Leaching Facilities
Eljen GSF Model B43. Trench Configuration. All leaching facilities to be of the size, location and brand shown on the drawings. All fill materials within specified distances surrounding and below the leaching pads to be C-33 certified sand. All other fill within five feet horizontal of the leaching pads
and C-33 sand to be clean select bank run sandy fill without large cobbles. Do not excavate outside of the footprint of leaching pads at the specified depth. Sand characteristics to be documented. Supplier provided C33 Sand Analysis shall be less than one year old. Sand suppliers shall ensure that the
analysis provided to the Septic Installer is representative by following a written Quality Assurance Plan (QAP) which documents the method(s) used to ensure that a sample report represents the actual material being supplied for use. The System Designer may analyze a sample of the sand on-site to
confirm sand specifications. Manufacturer's filter fabric over all modules and distribution pipes.
5.Inspection
Two site inspections by the System Designer are required. Notify System Designer at least 24 hours in advance of completion of excavation and before addition of sand to certify site preparation. Photographic documentation may be acceptable.Notify System Designer at least 24 hours in advance of
completion of system construction and prior to backfill for final inspection. The System Designer shall verify the system was installed as designed and authorize the final grading. The Contractor responsible for notifying the local Board of Health for a final inspection. If the System Designer finds the system
is not ready for inspection after being called, or if serious deficiencies are discovered, the System Designer must be notified to return to the job site when it is complete. There will be a charge to the Installer of $50 for each return trip, payable directly to the System Designer at the time of the reinspection.
Inspection and project closeout forms are usually generated within 24 hours of final inspection by the System Designer, when all other requirements are met. Signed Certificate of Compliance forms and As-built Drawings are sent to the Installer for a signature and date. One set of forms are then returned
to the System Designer for final processing. The second set of forms are for the Contractor to keep as his project record.
6.Final Grading
At conclusion of work, loam and seed all disturbed areas to perennial grass mixture. Added loam may be required for adequate grass growth. Mulch slopes with hay, burlap or netting to minimize erosion. Surface over leaching facility shall be pitched so as to shed rainwater. Also pitch surface over all
tanks to shed rainwater from any exposed covers. Do not allow surface water to puddle over any tank or component. Systems built late in the year, where the grass cover does not have a chance to establish itself, requires the contractor to return after spring thaw and resurface final grades and add grass
seed cover as required to equalize and stabilize all disturbed areas.9'
Existing septic tank: Pump, remove risers and covers,
open top, fill with clean sand and backfill level.
Existing leach tank: estimated location. Locate,
pump, crush top and backfill with clean sand.
WEST FARMS ROAD
Blacktop Driveway
TBM: nail near base of 36" maple tree.
Elevation: 100.00'
New outlet sewer by licensed
plumber. Exit at floor level.
PL
PL
PL
INVERT ELEVATIONS and LENGTHS:
Letter Code Elevation Notes and Slopes
A House outlet invert 95.50
B Sched. 40 pipe 16 ft.3.1% slope
C Septic Inlet 95.00
D Septic Outlet 94.75
E SDR-35 pipe 24 ft.
H Leach Field Area High Contour 93.50 Reference Point
I SHWT Separation 2 ft.with LUA
G Depth to Groundwater 35 in.from Perc Test
J High Groundwater Contour 90.58
T Excavation of Topsoil 16 in.
T Excavation Elevation 92.17 Tapers Down
K C33 Sand Base Level 92.17
F D-box Inlet 93.93 Baffled Inlet
L D-box Outlet 93.77 with speed levellers
M Eljen Top 93.67
K Eljen Base 93.08 0.0% slope
N Final Grade 94.67
O Breakout Barrier Top 94.00
P Breakout Barrier Base 89.00
Q Inspection Port Length:24 in.
V Vent 3 ft. above final grade
Distribution Box
System Low Vent
Inspection Port
Seal old exit sewer10"18"8"Inlet Outlet
Distribution Box Detail
6" washed stone
NOTES: 12" dia. sealed riser
to final grade. Glue horizontal
tee on inlet interior.
Inspection Port Detail
ground surface 4" screw cap,
terminate at surface.
Scale 1": 10'
4" perf. pipe inserted
to base of sand.
12" bury depth
Leach Modules
C-33 Sand
36" height
above grade
System Low Vent Cap
4" Sched-40 ABS black pipe
Leach modules
ground surface
Scale 1": 10'
12" bury depth 4" distribution pipe
Drill 12x3/8" holes in top of
standpipe for ventilation.
Cross Section Line
40-mil Poly Breakout Barrier: 3 sides
Original Surface
+45+30+45+60 +60 +75
ModulesD-box
C33 Sand
Groundwater
Scale: Vertical 3X HorizontalSYSTEM PROFILE
92
96
94
90
88
86
84 2'5'Septic TankVent
Breakout Barrier
Bank Run FillC33 or Title 5 Sand
SEPTIC TANK ASSEMBLY
3 access covers required. Install sealed risers to final surface on all 3 covers.
Install on minimum of 6" compacted crushed stone base
Septic Tank to be H-10 loading rated.
Gas baffle on section outlet. Removable filter on tank outlet.
Tank Requirements:
5000 psi concrete @ 28 days.4'-7"4'-4"5'-8"10'-6"
1500 gallon tank 19"10"Displaces 29 gal/inch immersion
95
9 6
10'
New 1500-gallon Title 5
septic tank with outlet filter.
93
92
91
90
89
94BUILDING WALL6" washed stone under tanks. D-box with inlet baffle or
tee. Riser to final grade. 6" sump depth. "Sewer Pipe
Below" or similar metallic warning tape required.
Risers to final grade over all covers. Outlet
filter with gas baffle required. Tees 6" above
flow line, 3" airspace, and min. 15" below outlet invert.
V
Elevations and Lengths
Use C33 or Title 5 sand for all
additional fill under chambers. Use
select fill without large rocks or roots
for all other fill requirements.
Install Inspection Port near distal
end of each trench. Use 4" black
ABS pipe for vent. Plant with
perennial grass seed and mulch.
Septic Tank
A B C D E F I T
C33 Sand
Encase Vent Base in 1 cu. ft. Concrete
Q
Not to Scale
L J
O
P
NMK
Select sandy fill for all
other fill requirements.
H
Breakout Barrier
G
T5 or C33 Sand
D-box
41'1'1'8'Eljen Field Detail Scale 1" : 10'5'Breakout barrierC33 SandFill
1
2
50'
5
0'
Seasonal Stream
100 ft. of 9" biodegradable wattle siltation barrier.
94.9
97.4
102.4
98.0
96.2
95.3
95.8
94.5
94.6
90.9
90.4
88.9
91.4
92.5
95.5
98.3
92.6
101.1
87.2
88
89
90
91
92
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94
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102
87