HomeMy WebLinkAboutSWG2025-00029 - SWG Application / Design - 2/4/2025 WA
MASON COUNTY 415N 6 SHELTON: ,S427-96 , ,EXT 400
SHELTON:360427-4467,EXT 400
BELFAIR:360-2]5<48],EXT 400
Public Health & Human Services ELMA:360462-5269.EXT 400
FAX:360427-7787
On-Site Sewage System Permit: SWG2025-00029 C O d NT
FARRINGTON GEOFFREY A&JESSIE Phone:
APPLICANT L
Address: PO BOX 1247 SHELTON,WA 98584
OWNER FARRINGTON GEOFFREY A&JESSIE Phone:
L
Address: PO BOX 1247 SHELTON,WA 98584
SEPTIC DESIGNER CINDY WAITE` Phone: 360-701.0205
Address: 80 E PICKERING LANE SHELTON, WA 98584
Site Address: 15 E CHERRY PARK
Primary Parcel Number: 420125400015
Permit Description: Conforming repair 3bd sandlined bed
Permit Submitted Date: 02104/2025
Permit Issued Date: 02/1412026
Issued By: Rhonda Thompson
Current Permit Fees Paid: $825.00 (additional fees may be rewired upon installation d system).
Permit Expiration Dale: 02/1112026 (based on cote of inspection)
Pemtit Conditions:
1 Proposed development subject to zoning requirements and approval by the planning
department staflper Mason County Title 17.
2 Permit must be installed by a Mason County Certified Installer unless prior written
authorization from Mason County is obtained.
3 Drainffeld installation not to exceed designed upslope and downslope depth specified on
design form.
4 Installer is responsible for obtaining Mason County installation approval prior to backfill of
system components.
5 Installer is responsible for obtaining Septic Designer/Engineer installation approval prior to
bacli of system components.
6 Mason County Asbuilt Form, Record Drawing, and Installation fee must be submitted for
final installation approval.
THIS PERMIT MUST BE ONSITE DURING INSTALLATION OF OSS.
PROPERTY OWNERS ARE RESPONSIBLE FOR DETERMINING AND MARKING ALL PROPERTY LINE AND EASEMENT LOCATIONS.
THIS PERMIT MAY BE REVOKED IF THE SITE CONDITIONS HAVE CHANGED SINCE THE SITE WAS INSPECTED AND DESIGN APPROVED.
FINAL INSTALLATION APPROVAL IS REQUIRED PRIOR TO TEMPORARY OR FINAL OCCUPANCY OF ANY RELATED STRUCTURES.
For Final Inspection visit: masoncountywa.gov/healthlenvimnmentai/onsite/oss-inspection-mquest.php or call:
360-427-9670,extension 400.
OFFICIAL USE ONLY
an R,a�w:
MASON COUNTY
COMMUNITY SERVICES
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ON-SITE SEWAGE SYSTEM APPLICATION > z
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GEOFFREY FARRINGTON 253-720-0690 z
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PO BOX 1247 SHELTON WA 98584 p
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15 E CHERRY PARK SHELTON WA 98584 a
CINDY WAITE 60-701-0205 N'
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NEW CONSIRUCTIOXIUPGPADES �R�AUtIREPfAOBAENi OiIER GETALS(vaawev ftaPA9 OTABLEIXREFNR � N
SibpWrrNS OSURFACING SEWAGE 0Ei(ISTING FNUIRE OSHOREUNE
pi 0E5M.N FOlU1(REOUIREO) SEPTIC DESIGN(REOUIRED) SEOROOUS /J IAi SQf 0 0 I A
6WN'ERISI(F APPLICABLE) 7C Q
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GO NORTH ON SHELTON SPRINGS ROAD, PAST HIGHSCHOOL, TURN RIGHT ONTO p
ISLAND LAKE RD, TURN RIGHT ONTO CHERRY PARK, STAY STRAIGHT TO PARCEL c I p
ON THE LEFT. SOIL LOGS ARE IN THE BACK y
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OFFICIAL USE ONLY BELOW THIS LINE
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OVOLUNTARY QMNMENANCEPUMPING DBUWINGP IT DHOMESALE [I O NT QOTHER
mSiEctOR SOLtoGS COIYE"iSf LaDITIONs
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THIS FgIM MAY BE SCANNED AM AVARABLE FOR PUBJC VIEW ON THE MA50N COUNTY WEBSRE REVIS®tN/Ni5
DESIGN FORM—PAGE ONE Assessor's Parcel Number: 4 2 0 1 2 — 5 4 — 0 0 0 1 5
A design will be reviewed when 3 copies of each of the follow-mg are submitted: llceble Items on checklist
a Completed design form that has been signed and dated. Scaled layout sketch,including all app'
•Scaled plot plan,including all applicable items on checklist. v Cross-section sketch,including all applicable items on checklist.
This farm may be scanned and available for public view on the Mason Conn Web site.Maximum a r size: /I"X 17"
PARCEL 1DENTflqC TION
'7 n o.{-If2i 2 9 Designer's Name: OINDY WAITE
Permit Number: SWG 360401-0205
Applicanes Name: GEOFFREY FARRINGTON Designer's Phone Number:
PO BOX 1247 Designer's Address: 80 E PICKERING LANE
Mailing Address: SHELTON WA 98584
SHELTON WA 95554
Ci State 7.i city State Zi
Treatment Device
0 Glendon Biofilter ❑Sand Filter 0 Mound S(Sand Lined Dminfield ❑ Recirculating Filter,Type:
❑Aerobic Unit Make/Model
❑Disinfa9ion Unit MakelMode Other.
Draintield Type ❑Sub Surface Drip
❑Gravity Pressure O Trench �ed
Septic Taak/Drainfreld Specifications N L rals
Number of Bedrooms 3 Schedule/
m SCHEDULE40
Deily Flow:Opemdng Capacity �270 gpd Length (� LLJ
m36 ft
gpd Diameter 1.25 in
Daily Flow: Design Flow 4
Septic Tank capacity(working) 1537 gal Number � e m
Receiving Soil Type(1-6)
1 Separation2 ft
Receiving Soil Appl.Ante 1. ft2 Orifices
60
Required Primary Area 360 ft' Total Number rifle
3620 ti Diameter 3/16 in
Designed Primary Area 'n;s
360 ft, Spacing ' 30 in
Designed Reserve Area P
10 ft ifold
3
Trench/Bed width qq
3g ft Sche Classno��WAITE,
Trench/Bed Length LICENSED DESIGNER fl
Elevation Measurements Ly,.IULy Imo-
Original Dminfield Area Slope
<t % Diameter to
New Slope,If Altered % �,- Preferred manifold configuration used? O Yes �No
UP-sloNc 37 Transport Pipe
Depth oiginal Grade
- SCHEDULE40
from Original Grade powo-slope 37 in Schedule/Class
39 in Length 40 ft
Designed Vertical Separation 2 in
Diameter
Pump Required? 16 Yes 0 No Dosing and Pump Chamber
Pump/Siphon Specifications Number ofdosesiday 6
Diff.in Elevation Between Pump&Uppermost Orifice 10 A Dose quantity 45 gal
1287 gat 1Q
2 ft Chamber Capacity(flood) k V
Dminfield Squirt Height/Selected Residual(heed) Pump controls:Please check those required
Uppermost Orifice�Higher 0 Lower than Pump Shutoff RITimer 6(Elapse Meter gr Event Counter
Capacity Qa ToWI Pressure Head 36.4 gpm ,Dora off
Calculated Total Pressure Head 12.84 ft If Timer. Pump on P
Comments AT
GRAVEL BASE DRAINFIELD REQUIRED, COARSE SAND REQUIRED, CONTROLS TO BE SET
TIME OF INSTALLATION. 5-
r.1 G> r, .2 70 G Pp �i'N�f� ( -:�i �Jo tfe.af
Ja..rl,
DESIGN FORM—PAGE TWO Assessor's Parcel Number: 4 2 0 1 2 — 5 4 -- 0 0 0 1 5
Permit Number: SWG
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
16 Test hole locations G9 Drainfield orientation and layout Reference depth from original grade:
Id Soil logs 11 Trench/bed dimensions and if Septic tank
m Property lines critical distances within layout 19 Drainfield cover
RI Existingproposed wells D-Box/Valve box locations
and p p osed Reference depth from original grade
within 100 ft of property Ed Septic tank/pump chamber and restrictive strata:
l21 Measurements to cuts,banks,and locations 16 Laterals,trench/bed,top and
surface water and critical areas 56 Observation port location bottom
m Location and orientation of Z Clean-out location ❑ Curtain drain collector
curtain drain and all absorption R1 Manifold placement ❑ Sand augmentation
components E9 Orifice placement Other cross-section detail:
Ib Location and dimension of Ed Lateral placement with distance ❑ Observation ports/clean-outs
primary system and reserve area to edge of bed
8 Other Information
Eb Buildings 56 Audible/visual alarm referenced Yes No
Ib Direction of slope indicator It Scale of drawing shown on scale if ❑ Design staked out
Ea Waterlines bar ❑ ❑ Recorded Notices attached
16 Roads,easements,driveways, ❑ ❑ Waiver(s) attached
parking ❑ ❑ Pump curve attached
Es North arrow and scale drawing ❑ ❑ Evaluation of failure
shown on scale bar Non-residential justification
❑ ❑ Waste strength
❑ ❑ Flow
DESIGN APPROVAL
The undersigned designer must be notified b installer
at time of installation 21 Yes ❑ No
-� IN c,.b �� t3l 2, 2r
Signature of DAigner Date
The undersigned has reviewed this design on behalf of Mason County Public Health and determined it to be in
compliance with state and local on-site regulations:
Z f) `4 5
Environmental Health Specialist Date
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped"Approved'by Mason County Public Health. �,( '7
✓ The Onsite Sewage Permit has not expired,the Permit Expiration Date is: ` f ( I (it
✓ Drainfield site conditions have not been altered to adversely affect conditions of design approval.
Please Note: The system must be installed by a certified installer,//
unless prior authorization is obtained from Mason County Public Health.
An Installation Fee is required.
This form may be scanned and available for public view on the Mason County Web site.
Updated Date: 1217/2015
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ORIFICE SPACING 2.5
Lateral# Length Length Orifice # Distance from Distance from end Length#
# (Feet) (Inches) Spacing" Orifices feeder line of end of lateral
1 36 432 30 15 0.5 0.5 36
2 36 432 30 15 0.5 0.5 36
3 36 432 30 15 0.5 0.5 36
4 36 432 30 15 0.5 0.5 36
0
0
1441 1 60 147.5
TRANS LENGTH 40
GPM z+" d ' 5,
K (2" SCHEDULEN 40)
FRICTION LOSS
S uirt 2
Elevation difference 10
TDH 12.846572
dda l7r�,N� (i FEB 14 2025
MASON COUNTY ENV RONMENTAL HEALTH
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TRENCH CROSS SECTION LI 9 1
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DRAINFIELD LAYOUT
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4-
XI=CLEANOUT/OBS PORTS J,
X2=D BOXNALVE BOX .4!r 43 0
X3=Check Valves d p/ my *j.
X4=Flow Control Valves N ,p,f v4,1 J_r J a
X5=Soil Logs fey t��9� 3 CINDr°E�j
LICENSED DESIGNER
v u m_5 JY:W
APPROVED y �
FEB 14 2025
MASON COUNTY ENVIRONMENTAL HEALTH
RET
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s;E.,a
LICENSED GEYE SIONER
T
THREADED CAP OR PLUG
P'+ ✓Qu(+ 6" PVC
LAST ORIFICE;WITH
ORIFICE SHIELDS IF
ORIFICE ORIENTATION IS
BACKFILL UPWARD
MATERIAL \ \ \`
00 O PRESSURE LATERAL
�\\/p00 0 000 AS SPECIFIED
PVC HOSE OR �\ °O G �oCloo
LONG SWEEP jo o / �\p�
ELBOW \ DRAIN ROCK;6"MIN.
BELOWPIPE
UNDISTUR SOIL J
6"PVC WITH DRAIN
HOLES; EXTEND TO
BOTTOM OF GRAVEL TO
�• �'"` �' MONITOR PONDING
INFILTRATIVE SURFACE
cl I1E
ICE SIGNER
ICE , w„y11 ITORINGICLEANOUT PORT
(EXAMPLE)
APPROVED (O `
MASON COUNTY ENVIRONMENTAL HEALTH
RET
1/rINFILTRA'I ( -�" :�°�/ °��' ' IM-1530
tanks
Features & Benefits
The Infiltrator IM-1530 is a lightweight strong and Strong injection molded
durable septic tank. This watertight tank design is polypropylene construction
offered with Infiltrator's line of custom-fit risers • Lightweight plastic construction
and heavy-duty lids. Infiltrator injection and inboard lifting lugs allow for
molded tanks provide a revolutionary easy delivery and handling
improvement in plastic septic • Integral heavy-duty green lids that
tank design, offering long-term interconnect with TWTM risen; and
exceptional strength and pipe riser solutions
watertightness. • Structurally reinforced access
ports eliminate distortion during
installation and pump-outs
Reinforced structural ribbing
and fiberglass bulkheads offer
additional strength
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• Can be installed with 6"to 48"
• ^.� ✓ of cover
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N` g Can be pumped dry during
pump-outs
CIaD a Suitable for use as a septic tank,
A P P LICENSED • pump tank, or rainwater
ex,raes ss,o (non-potable)tank
FEB 14 2025 Inlet Side • No special water filling
TAJdVft1 '7 ENVIRONMENTAL requirements are necessary
REi sya� • The tank may be backfilled with
suitable native soil. See installation
instructions for guidance.
Partition
baffle wall
HEAVY DUTY LID
CUTAWAY
Reinforced
24"structural
access port
Structural
bulkheads
MID-SEAM CUTAWAY
Reinforced water tight mid-seam
gasketed connection I13
Protecting the Environment with Innovative Wastewater Treatment solutions INFILTRATOR'
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IM-1530 General Specifications
and Illustrations
The IM-1530 is an injection molded two piece mid- LL,1«o.,M.ma L1Fl1H0Lbit M P.g-rP'
seam plastic tank.The IM-1530 injection molded ,,,_.}�., r.,P,„G 4 ,.4,�,.2r., a; •--
plastic design allows for a mid-seam joint that has
precise dimensions for accepting an engineered
EPDM gasket. Infiltrator's gasket design utilizes Ile
technology from the water industry to deliver
proven means of maintaining a watertight seal. III -iz
1
The two-piece design is permanently fastened
using a series of non-corrosive plastic alignment -
dowels and locking seam clips. The IM-1530 is _ „Sa NAml Errtwaa LexP1" -
assembled and sold through a network of certified
Infiltrator distributors.
TOP VIEW
Must be bacMillad and installed in accordance
with Infiltrator Water Technologies, Infiltrator O V ES
AP IM-Series Septic Tank General Installation PR
Instructions and for shallow ground water ED .` �'1-��;'LiSst.
conditions reference the Infiltrator IM-Series FEB 14 2025
Tank Buoyancy Control Guidance. c n.e
Y Y MA„ON COUNTY ENVIRONMENT * '' ,`x"m"pK
Please visit www.infiltratorwateccom/images/ RET m*I
pdf/ManualsGuides/TANK01.pdf for the latest
information.
WarNng Capacity 1637 gal(5818 L)
Total Capacity 1787 gal(6705U erumwA aawar
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Airspace 16.8% "�'^�: m,wn FaaaoN,aT
Length 176"(4460 mm) t awasAee
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Width 1(1567 mm)
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Length-to-Width Ratio 2.8 to 1 )- 4is >_ TIN:f.M99
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Height 1(1384 mm) "''
Liquid!Level
46"(1118 mm) ^__: realarMt
Invert Drop 3'(76"
Fiberglass Supports 4 - SIDE VIEW
Canpartments 1or2
Maximum Burial Depth 48"(121g mm) _ coxTlxuaus
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Minlmum Burial Depth 6^(152 mm) eia�V 4 K9 CASKET
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Mezknum Poe Dielneter 4"(100 mml W� g 15 TANK 1�
WeipM 501 lbs(228 kg) .t INTENOR Ti SEMI CLIP
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septic ta..
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• Strang Injection molded polypropylene
construction
• Lightweight plastic construction and
inboard lifting hugs allow for easy
delivery and handling
• Integral heavy-duty green lids that
Interconnect with T -risers and pipe
riser solutions
• Structurally reinforced access ports
eliminate distortion during installation
mid pump-outs
• Reinforced structural ribbing and
fiberglass bulkheads offer additional
strength
• Can be installed with 6-to 48"
of cover
The Infiltrator IM-1060 is a lightweight strong and durable septic tank. Can be pumped dry during
This watertight tank design is offered with Infiltrator's line of custom-fit pump-outs
risers and heavy-duty lid filtrator Injection molded tanks provide a Suitable for use as a septic tank,pump
revolutionary improvem i lastic septic tank design, offering long-tsr} tank, or rainwater(non-potable)tank
exceptional strength wat 'ghtness. No special water filling requirements
Inlet Side I are necessary
m3s�'i s4 o for 1 The tank may be backfilled with suitable
TANK CUTAWAY ,� native loll.See installation instructions
se` for guidance.
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41ROVED
rural FEB 14 2025
MID-SEAM I�A"Aj'i ENVIRONMENTAL HEALTH
Reinforced water tight mid-28AET
gae%W connection
INFILTRATOR'
Protecting the Environment with lnnovathre thg'mitnitar itrwflmd ellte
i
IM-1060 General Specifications and Illustrations
The IM-1060 is an injection molded two piece mid-seam
plastic tank.The IM-1060 injection molded plastic design
allows for a mid-seam joint that has precise dimensions A A
for accepting an engineered EPDM gasket.Infiltrator's °a °o
gasket design utilizes technology from the water industry
to deliver proven means of maintaining a watertight seal. °
The two-piece design is permanently fastened using a
series of noncorrosive plastic alignment dowels and
locking seam clips.The IM-1060 is assembled and sold
through a network of certified Infiltrator distributors. ,nnoaafmamuxaTx
Must be backfilled and installed in accordance with TOP VIEW
Infiltrator Water Technologies, Infiltrator IM-Series Septic a
Tank General Installation Instructions and for shallow
ground water conditions reference the Infiltrator IM-
Series Tank Buoyancy Control Guidance. L
Please visit www.infiltmtomater.com/images/pclf/ 1�!
ManualsGuides/TANKOt.pcif for the latest information. eelr
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Working Capacity 1094 gal(4141 L) n»lu
lolal Capacity 1287 gal(4872 U END VIEW
Airspace 16.5%
Length 127"(3228 mm) mxnau 'aaalafrpssorewmvmx,maeinsIn
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Pump Specifications
280 Series 1l2 hp �
Submersible Effluent Pump
LITERS PER MINUTE
■■■■■■■■■■■■■■
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30
All
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20
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GALLON8 PER MINUTE
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Installation Notes
i
Sand Augmented Pressure Distribution System:
42012-54-00015 15 E Cherry Park
1. The prepared site plan is not a survey. It's the owner's responsibility to verify property
lines, utility lines (water, sewer, power, phone and gas) prior to installation.
2. Pump controls to be set at time of installation 270 GPD
3. Install system during dry weather with acceptable soil conditions
4. Gravel based drainfield required.
5. Clean Course sand to be used.
6. Install 30 mil liner down 6" into sand layer
7. The tanks may be moved as necessary to accommodate building requirements. Septic
tank location must meet all required setbacks.
8. Keep wheeled vehicles off the drainfield area before, during and after installation.
Tracked equipment only,
9. All ground, surface water and roof drains must be diverted away from the septic tanks
and drainfield. Ensure the final grade slopes away from these areas and water doesn't
collect on or around them. Use swales, berms, catch basin and tight lines, curtain drains,
etc. to divert all waters.
10. Curtain drains can be no closer than 10' upgradient and 30' down gradient of the
drainfield
11. Exposed restrictive layers, cuts, banks, etc, can be no closer than 50' downhill from the
drainfield.
12. Install access risers on the septic tanks, valve box and ends of laterals.
13. Make sure septic tank risers are epoxied or caulked to cast in riser rings on tank.
14. Lids must form a water and gas tight seal with the access risers
15. Install effluent filter specified in this design at the septic tank outlet.
16. This system must be installed by a Mason County Certified installer.
17. Deviation from this design without prior approval from the designer and Mason County
Health Department will make this design null and void.
18. This design was sized per Washington Administrative CodeWAC246-272A-0230. The
operating capacity is based on 45 gallons per day per capita with two persons per
bedroom. The minimum design flow per bedroom per day is the operating capacity of
ninety gallons multiplied by 1.33. This results in a minimum design flow of one hundred
twenty gallons per day. This creates a surge factor of 33% but anticipated flow is ninety
gallons per bedroom per day.
19. Install laterals with contour of the ground
20. Install trench bottoms level and always maintain a minimum of six inches into native soil
21. Install locator tape on top of all drainfield laterals.
22. Install threaded clean outs at the ends of all laterals (caps m e nd to within six
inches of finish grade and be in a valve box as shown on di m.,
23. Install audio/visual alarm 11
24. Filter fabric required over drain rock prior to backfillin9 1 Mends above
the original grade, run the filter fabric at least 2 inches n c I.
APPROVED y 5,0,0418 ^�
FEB 14 21)25 �. `EIS °
MASON COUNTY ENVIRONMENTAL HEALTH
RET
I
3
i
System Owner Responsibilities:
1. Operation and Maintenance is required by Washington State Department of Health and
Mason County Health Department.
2. The septic tank and pump tank should be pumped every three to five years or as
needed.
3. System owners are responsible for having maintenance performed annually.
4. System owners are responsible for responding to septic issues in a timely manner.
5. System owners shall not at any time change or alter settings in the control box.
6. System owner agrees to read and abide by information regarding their system in the
User Manual provided by Mason County Public Health.
7. Keep the flow of sewage at or below the approved design operating capacity.
8. Keep waste strength at residential waste strength parameters.
9. Spread loads of laundry through the week.
10. Do not use excessive bleach or detergents with added whiteners.
11. Do not shower, do laundry and dishwasher at the same time
12.Antibiotics can kill or impair the biological process in the septic tank.
13. Leaky plumbing can hydraulic overload your on-site septic system.
AI
w 110111
APPROVED
FEB 14 2025
MASON COUNTY ENVIRONMENTAL HEALTH
RET
1
a