HomeMy WebLinkAboutSWG2025-00318 - SWG Application / Design - 8/7/2025 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584
SHELTON:360-427-9670,EXT 400
a BELFAIR:360-275-4467,EXT 400
Public Health & Human Services ELMA:360-482-5269,EXT 400
FAX:360-427-7787
On-Site Sewage System Permit: SWG2025-00318
APPLICANT IMUS JASON R Phone:
Address: PO BOX 1912 BELFAIR, WA 98528
OWNER IMUS JASON•R Phone:
Address: PO BOX 1912 BELFAIR, WA 98528
SEPTIC DESIGNER Dave Ghylin -Dave's Septic Service Inc. Phone: 360-710-2449
Address: PO BOX 301 SEABECK, WA 98380
Site Address: 21 NE Lakeway Dr
Primary Parcel Number: 223107990802
Permit Description: New SFR 4-bedroom pressure system with trench drainfield
Permit Submitted Date: 08/07/2025
Permit Issued Date: 01/12/2026
Issued By: David Anderson
Current Permit Fees Paid: $555.00 (additional fees may be required upon installation of system).
Permit Expiration Date: 08/26/2028 (based on date of inspection)
Permit Conditions:
1 Approval of this septic permit does not approve the building location. Building location is
subject to approval from all applicable departments and regulations.
2 Proposed development subject to zoning requirements and approval by the planning
department staff per Mason County Title 17.
3 Permit must be installed by a Mason County Certified Installer unless prior written
authorization from Mason County is obtained.
4 Drainfield installation not to exceed designed upslope and downslope depth specified on
design form.
5 Installer is responsible for obtaining Mason County installation approval prior to backfill of
system components.
6 Installer is responsible for obtaining Septic Designer/Engineer installation approval prior to
backfill of system components.
7 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/health/environmental/onsite/oss-inspection-request.php or call:
360-427-9670, extension 400.
OFFICIAL USE ONLY
MASON DATE RECEIVED: nnozs
. >
�-- r AMOUNT RECEIVED: RECEIVED BY: W Co
,,r ,- Public Health & Human Services �SsS C� ® M
, - Environmental Health 360427-9670,ext.400 or 360-275-4467,ext.400 U1
VV
415 N.6th Street-Shelton,WA 98584 SG 1015
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ON-SITE SEWAGE SYSTEM APPLICATION m g
APPLICANT PHONE
I—
C
MAILING ADDRESS-STREET,CITY,STATE,ZIP CODE
111
SITE ADDRESS-STREET,CITY,ZIP CODE P
°2-1 JOE Lr4-4 w dIZ (6 eL5-ii- Wig- 9 S 5--Z e fst
NAME OF DESIGNER PHONE
$-�— &PI14 300 -7lo-Zy / 9 N
NAME OF INSTALLER PHONE
C
PERMIT TYPE(select one) DRINKING--U� WATER SOURCE
g RESIDENTIAL OSS f COMMUNITY OSS II]COMMERCIAL OSS _L_1 PRIVATE INDIVIDUAL WELL PRIVATE TWO-PARTY WELL Z
TYPE OF WORK(select one) �] PUBLIC WATER SYSTEM I
!L�NEW CONSTRUCTION/UPGRADES ❑ REPAIR/REPLACEMENT OTHER DETAILS(select all that apply) ❑ TABLE X REPAIR
NJ
SUBBMITTALS ❑ SURFACING SEWAGE ❑ EXISTING FAILURE O SHORELINE
Ca
11�S DESIGN FORM(REQUIRED) "SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOT CREATED AFTER 4/1/2025? or 1C)
(❑ WAIVER(S)(IF APPLICABLE) 1 Z5,0.6, 5 r YES WINO O t
DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gale)
3 ' DA) of L..�.Ff A-F1- - �N 12Sce 9/.) f F PE O
BL c .S t'I-h D1___ (Amy DR , QftA- bd oN ® coo
O
O &A- e
SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. y A' < I
OFFICIAL USE ONLY BELOWTHIS LINE V 'V
UPGRADE/FAILURE SOURCE(for reporting purposes)
❑VOLUNTARY ❑MAINTENANCE/PUMPING El BUILDING PERMIT ❑HOME SALE El COMPLAINT O OTHER: /� O1�,
INSPECTOR SOIL LOGS COMMENTS/CONDITIONS d
S$' 1'f2;0-36" Mc Chits`I)
Th Q4-36" ivr (NI
TEfz10-33" r45t �!Mat
a f 33"
0.) 1143: MG
tleffcif 3Z" v/ 1 of
SOIL CODES: RECORD DRAWING AND INSTALLATION REPORT
V=VERY G=GRAVELLY S=SAND L=LOAM SI=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINAL APPROVAL.
INSPECTO -G.ATURE DATE APPLICATION EXPIRATION DATE APPLICATI•'AP ROVED/ISSUED BY DATE
!(4 :' / , ( 2 6G°
THIS FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised:6/3/2025
DESIGN FORM—PAGE ONE Assessor's Parcel Number: L2 2 : 015!9 4 ,Q 8' a
A design will be reviewed when 3 copies of each of the following are submitted:
Completed design form that has been signed and dated. Scaled layout sketch,including all applicable items on checklist.
''Scaled plot plan,including all applicable items on checklist. ``Cross-section sketch,including all applicable items on checklist.
This form may be scanned and available for public view on the Mason County Web site.Maximum paper size: 11 X 17'
Permit Number: SWG 2075 '063/g Designer's Name: 6/Vats)J
Applicant's Name: 3"lk:i9nS -Tartu,$ Designer's Phone Number: 34,a--7 ID any9
Mailing Address: P_Of 5OX 9 q D'Z Designer's Address: F, O, 30i
Z'c -6-4z- 14A- 9,5-2$ City State Zip -7 -t 1-.. Gull- 98W'
City State Zip Designer's Email D $9fo99t Li,2$a,
asmair p -�+�
-r's ���: �..r
Treatment Device
0 Glendon O Sand Filter O Mound O Sand Lined Drainfield O Recirculating Filter O ATU ❑4/ft• 4
Treatment Level(check all that apply): ❑A O B 0c O BL1 O BL2 O BL3 E O N~�'''-, f 17,7 ..
Drainfield Type %:,',''. .k. (j��,�
O Gravity Pressure (Trench O Bed ❑Su ce Drip
Septic Tank/Drainfield Specifications Laterals
Number of Bedrooms q Schedule/Class 410 - \/
Daily Flow:Operating CapacityftA0 Zrail ' gpd Length tf/ f - ft
Daily Flow:.Design Flow 1t� gpd Diameter / i
in
Septic Tank Capacity(working) /20 O ' gal Number 6
Receiving Soil Type(1-6) •1/ Separation id i - ft
Receiving Soil Appl.Rate fr 6 f gpd/ft2 Orifices
Required Primary Area 6Q®.4 ^r2 ft Total Number of Orifices 72,
Designed Primary At
g Area ® 'ft2 Diameter 0 in
Designed Reserve Area /,y 'ft2 Spacing qg in
Trench/Bed Width S/ z ft Manifold
Trench/Bed Length q57. - ft Schedule/Class /1O
F
Elevation Measurements /- Length ft
d
Original Drainfield Area Slope 2--� ' % Diameter Z C in
New Slope,If Altered h! % Preferred manifold configuration used?/4/Yes O No
Depth of Excavation Up-slope r
p � in Transport Pipe i
from Original Grade Down-slope K f f in Schedule/Class ye,
Designed Vertical Separation 2y rp in Length /35- ft
Gravel-based Drainfield Required? O Yes ArNo p 8>1s ' Diameter _ 2 ai _ _ in
Pump Required? ,Yes O No Dosing and Pump Chamber
Pump/Siphon Specifications I
6 Number of doses/day
Dill.in Elevation Between Pump&Uppermost Orifice � ft Dose quantity '/0 gal
Drainfreld Squirt Height/Selected Residual(head) 5 i
ft_ Chamber Capacity(flood) /200 / gal
Uppermost Orifice igher ElLower than Pump Shutoff Pump controls:Please check those required.
Capacity @ Total ressure Head j,�� gpm ,. yil'imer yElapse Meter Event Counter
Calculated Total Pressure Head ft , If Tinier: Pump on 76) Sre�- ,Pump off Z Ala S
Comments
Revised:6/11/2025
DESIGN FORM—PAGE TWO Assessor's Parcel Numberffii!42.—DIENIE4--
Permit Number: SWG
k ' L j "c + Kt- i≥sr�Cl�T Yit+r igi r. J T - ' '� Y Y t F F 0 5 9y.. 5 9
..}:> . t .rf:.-,f , Nj ,� F `♦:.... atI _.r... ,, .,� tt ti,„„.{ _,_, ...-,x l,,, ..,.s.. _�. .( _A.f. ....? x. { ,,
Scaled Plot Plan caled Layout Sketch Cross-Section Sketch
Test hole locations1
Drainfield orientation and layout Reference depth from original grade:
Soi.l..logs Trench/bed dimensions and P. Septic tank
critical distances within layout ' P
Property lines Y 6Drainfield cover
Existing and proposed wells D-Box/Valve box locations Reference depth from original grade
within 100 ft of property ' Septic tank/pump chamber and restrictive strata:
Measurements to cuts,banks,and locations 4' Laterals,trench/bed,top and
surface water and critical areas Observation port location bottom
ill Location and orientation of Clean-out location O Curtain drain collector
curtain drain and all absorption Manifold placement O Sand augmentation
components Orifice placement Other cross-section detail:
[ Location and dimension of Lateral placement with distance O Observation ports/clean-outs
primary system and reserve area to edge of bed
4
Buildings Other Information
Audible/visual alarm referenced Yes No
Direction of slope indicator Scale of drawing shown on scale 0 lib esign staked out
Waterlines bar 0 iRecordedNotices attached
Roads,easements, driveways, Elevation benchmark and relative ❑ rj Waiver(s)attached
parking elevations of system components '.' ❑Pump curve attached
li North arrow and scale drawing 0 [ Evaluation of failure
shown on scale bar Non-re idential justification
❑ Waste strength
y, r 7�j �y3'' ❑ Flow
Y•"` 'SS .. StT.j" �._,, N f. S, . yl.. �r, l fn.'- ✓1t A`a 0 * �i"�-i-;� v'•i tta t zf j 2' .SM
_.�i .. _....r _, _ t.. L.,_. _ � £.,. �+7 i,..�_..., ., k ?:.y
The undersigned designer must be 'fled by installer at time of installation O Yes O No F
- f c
Signature of Designer Date 14,0 id; s-
The undersigned has reviewed this desi on behalf of Mason County Public Health and determined e in vo
compliance with state and local on-si gulations: #46-,0 /4 ' l
1 Ni/TOZC 4/coe,4,7), 4/7(.2
nvironmental Health Specialist ------ Date F,y`� ',6'
o f O4
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING C�r T
V The design is stamped"Approved"by Mason County Public Health. ����(7Zeito'` � _
The Onsite Sewage Permit has not expired,the Permit Expiration Date is:
V 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. Revised:6/11/2025
Mason County WA GIS Web Map
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O Tax Parcels (Zoom in to 1:30,000) Sources:Esd,HERE,Garmin,Intermap,Increment P Corp.,GEBCO,USGS,
FAO,NPS,NRCAN,GeoBase,ION,Kadaster NL,Ordnance Survey,Esri
Japan,METI,Esrt China(Hong Kong),(c)OpenStreetMap contributors,and
the GIS User Community
Mason County WA GIS Web MapAppGration
Mason County disclaims accuracy,reliability,or timeliness of website info,not liable for losses from reliance on it.https:/hvww.masoncountywagov/disctalmecphp
Dave's Septic Services, Inc.
P.O. Box 301
Seabeck, WA 98380
(360) 710-2449
Customer Information:
Date: 4/30/25
Applicants Name: Jason Imus
Tax ID #: 22310-79-90802
v ®
APpR
JAN 12 2026
DJA
h1ASON COUNTY ENVIRO
NMENTAL HEALTH
General Designer Notes App
11O1/Eb
Owner Name: Jason Imus ,/AN r
Reference: 22310-79-90802 M4s0A, �N 1)'ENV
2?026
N
#1 —Soil logs have been dug on this site and are the responsibility of the property owner or owner 4 gent to
have these soil logs buried after the inspection process has been completed.
#2—If during the construction process, soil conditions are found that may lead to premature failure of the
system, construction shall stop immediately and the designer shall be notified. Such soil conditions may
include but not limited to ground water, surface water, fill material, clay soil,bedrock, or excessively
permeable gravels.
#3 —Any substitutions or deviations from these plans shall be approved by the Health Department or the
designer prior to construction. All changes of the system components shall be documented by the designer
on the final As-built drawing.
#4—Peak design flow is 480 g.p.d., Recommended daily flow should not exceed 384 g.p.d.
or premature failure may occur.
#5 —Backfill sewage disposal system immediately after final inspection process, cover soils should be
loamy sand or better. Seed final cover with grass or shallow rooting ground cover.
#6—Keep all maintenance access lids and ports accessible to ground surface.
#7—Installer should rake the finished grade smooth and slope it to divert all surface water runoff away from
tank and drainfield areas.
#8—Setbacks from house foundation to drainfields and reserve areas are 10', septic tanks 5' and transport
lines 2' unless otherwise stated within the design.
#9—Driveways and parking areas must stay 5' from drainfield areas. Tanks may be located within parking
area and driveways if approved for this application.
#10—Sewage waste strength should meet the following criteria or be lower Bod-5 = 130-174 mg/1, TSS =
47-71 mg/1,FOG= 10-20 mg/1, PH=6.5-7.2 with microscopic life forms present.
#11 —Installer must adhere to all manufacturer installation requirements for all products used.
#12—The attached septic design does not represent a survey nor does it purport to show all easements or
encroachments, if any. Designer recommends property lines be located prior to any final installation occurs.
Surveys may be required to accomplish this.
#13 —Property lines and corners have been represented by owner or owner's agent,the designer is not
responsible for errors due to inaccurate measurements from property lines or corners that are inaccurate. a'
#14—If a curtain drain is required with this design it must meet all Health Department installation
requirements.
#15 —Developers,homeowners and installers, installations of on-site sewage disposal system should always
be installed in dry weather conditions. Irreparable soil damage may occur if systems are installed in wet
conditions. Planning the installation of system is very important and should be done as early in the building
development stage as possible. Wet weather conditions have caused delays in final approval dates.
#16—Maintenance is required will all sewage disposal systems. Owners will receive details of this in the
designer manual with the final approval of the application.
#17—Adhere to all designer notes located on design layout page.
#18 —If development exceeds 10,000 square feet of impervious surface an engineered drainage plan may
need to be submitted. Options are available to reduce square footage requirements, such as wagon wheel
driveways, contact DCD for further details. Owners are responsible for any fee for redesigns or revisions
that may be needed after BSA submittal not due to designer error.
#19—Low flow water fixtures are recommended within the home to help lower the hydraulic load to the
system.
#20—Watertight components are a must for all onsite sewage systems. Installers are required to ensure all
components are watertight, extreme care should be used during backfilling of these components to prevent
settling and or water intrusion issues. If leaking components are not fixed in a timely manner,the designers
warranty may be void.
#21 —Installation of this design must meet all Health Department regulations and all adopted policies by the
Health Department that may apply. Installer is required to be versed in these regulations, if any questions
contact designer.
#22—All components used must be on State Department of Health approved products list for use with
residential waste.
#23 —Installer must inspect all tanks used at time of delivery and any tanks with defects must be rejected
and not used. When using any existing tank,the installer must due a 24 hour leak test to ensure all tanks
used are watertight.
#24—All plumbing must be routed into the new sewage system that has been designed. It is the property
owners responsibility to show the designer all plumbing stub outs and all gray and black water discharge
points. A plumber may be needed on old homes to ensure that all stub out locations are connected to the
new proposed sewage disposal system. An inside pump basin may be needed in some cases where
plumbing is located in basements and elevations for a gravity discharge cannot be maintained.
#25 —Do not use low profile chambers or the system will be red tagged. All lateral lines must be a
minimum of 6" off the infiltrative surface. Lateral ends must be secured at the cleanout and must be in the
center of the port.
#26—Gravel trenches are recommended, but Arc 36" chambers are allowed.
Specific Designer Notes:
#1-This application is for a new 4-Bedroom home.
#2-A new pressure system is proposed with 270' of drainfield.
#3-Any large stumps holes to be filled with sand filter sand.
#4-Extreme caution must be taken on clearing drainfield area.Native soil can't be damaged
Recommended to be done by septic installer. ��
#5- O/M is required. �®
#6-A timed dose panel is required.
JAN 12 2026
JASONCCUNryEA/000E,,
0JA NrAL HEAL pH
SL1- 0-36" Lt brown fine sandy loam with some gravel to restrictive layer. Soil
type 4
SL1- 0-32" Lt brown fine sandy loam with some gravel to restrictive layer. Soil
type 4
SL1- 0-32" Lt brown fine sandy loam with some gravel to restrictive layer. Soil
type 4
,..„.•:**,)
31CA731
Pump Selection for ai Pressurized System-Single Family Residence Project
Parameters
Discharge Assembly Size 1.50 inches 300 I_I—__-j` 1
P3015
Transport Length 135 feet 7.-7-.
�- III
Transport Pipe Class 40
Transport Line Size 2.00 inches -- I '■;
Distributing Valve Model None
Max Elevation Lift 20 feet 250 I -
Manifold Length 35 feet _ I I
Manifold Pipe Class 40 I I ri____
PF3010ii
Manifold Pipe Size 1.00 inches
Number of Laterals per Cell 6 I_I l'''-'
_^l_,-L-I —
Lateral Length 45 feet I 1 —
Lateral Pipe Class 40 200
Lateral Pipe Size 1.00 inches w I PF3007I �, I
m -J
Orifice Size 1/8 inches j , -___ I I I I � fl ill
Orifice Spacing 4 feet p I I I``-4-1-.. I I \I I i (—
Residual Head 5 feet - I I rll ''IN
I ,I
Flow Meter None inches —
d
'Add-on'Friction Losses 0 feet I 150 Ill i,
1 IE
_
Calculations col I I I I �, ■�,��
›' '1 PF3005
I I I ` I I Il
Minimum Flow Rate per Orifice 0.43 gpm CI
Number of Orifices per Zone 72 To I i I ,��, I
o
Total Flow Rate per Zone 31.4 gpm H 100 I ,
Number of Laterals per Zone 6 I I I ,
%Flow Differential 1st/Last Orifice 2.4 %
Transport Velocity 3.0 fps J „ I I 1 , I 'h\
Frictional Head Losses I
Loss through Discharge 2.9 feet 50 • _ (_". -.. _I
-
Loss in Transport 2.3 feet -._ -'= -1- - ``I LAM ri
Loss through Valve 0.0 feet
��� ��
Loss in Manifold 4.4 feet ��� JJ I I•I1 I
Loss in Laterals 0.3 feet
Loss through Flowmeter 0.0 feet 0 It I I P
'Add-on'Friction Losses 0.0 feet 0 5 10 15 20 25 30 35 40
Net Discharge(gpm)
Pipe Volumes
Vol of Transport Line 23.5 gals
Vol of Manifold 1.6 gals
Vol of Laterals per Zone 12.1 gals PumpData 0( r QU q I Legend
Total Volume 37.2 gals PF3005 High Head Effluent Pump System Curve:®
30 GPM,1/2HP
Minimum Pump Requirements 115/230V 10 60Hz,200V 30 60Hz Pump Curve:'=—'
Design Flow Rate 31.4 gpm PF3007 High Head Effluent Pump Pump Optimal Range:
Total Dynamic Head 34.9 feet 30 GPM,3/4HP
230V 10 60Hz,200/460V 30 60Hz Operating Point:O
PF3010 High Head Effluent Pump Design Point:
r T •` 30 GPM,IHP
C -'\ 230V 10 60Hz,200/460V 30 60Hz
i. . 14\1:...;.1
4. .4 .-q PF3015 High Head Effluent Pump
30 GPM,1-1/2HP I-- 4 %.1111,eb
Orenco 230V 10 60Hz,200/230/460V 30 60Hz
s v s r c m s JA
MA SO
C �i 1 2 2026
rco; s,YMrwot.cswxm
oUN ENV/RpNMENTgS
GRAVITY ON-SITE SEWAGE SYSTEM WORKSHEET . .
TYPICAL TWO CHAMBER SEPTIC TANK .y
MINIMUM TANK SIZE FOR PROJECT: 1,:2oo GALLONS ti �,
0 0ri
CID
0 O 0
+ 1 1 1. STUB OUT FROM HOME ELEVATION
INDICATED ON SEPTIC DESIGN
2. DOUBLE SWEEP CLEANOUT
0 ,,,'. _ I________ O 3. RISER TO FINISH GRADE WITH SLIP
`� CAP
®.___.. 4. 24"DIAMETER RISER TO FINISHED
• '. • ... `.. 0 GRADE WITH LOCKING SCREWS
5. OUTLET BAFFLE FILTER(OPTIONAL)
6. SEPTIC TANK STUB OUT TO
1:-... y# �i ALTERNATIVE TREATMENT UNIT
•-, . "`_ ':. �- _ •.-' NTS (ATU)/PUMP TANK OR DRAINFIELD
x
ic)
APPLICANT'S NAME: ,' DAVE'S SEPTIC SERVICES, INC. ��
Jason Imus l', P.O. BOX 301 �� ��\`
: j %C\O �<cl.'
TAX ID#: f►R SEABECK, WA 98380 `�
22310-79-90802 lit.Z. 'S i4s (360) 710-2449 C ' <
6
F "-
Septic Design Review for Typical 1 , 2Q0 Gallon Pump Tank
om
2. 3. v N
47:i1 •"�a , r. 6
6"MIN C OVER 6"MIN. COVER 0 I Q
�.
Too IS optional 0 421) — 0
14
O O 1. Secure lid with gas tight seal S‘~ 10
s (24"diameter access riser)to
u, _ S' finish grade
t ® _ �' :,a- 2. Anti siphon valve if pumping I... 11.
*3'! �,, - n= . downhill
t�s) =''' t .Y E"Ni �i 3_ Threaded union lip OA 12
4. Service valve
5_ Check valve — 13.
6. Electric box
1. Inlet from septic tank or alternative unit(ATU) 7. Float tree anchor 14
2. Final cover over tank(Not to exceed 36")from top of tank 8. Pressure flow to drainfield or l =
3. Pump chamber access alternative system (NTS)
4. Emergency storage area in tank 9. Float tree �� Z
10. High water alarm co Q
5. Normal working volume and On/Off level N
11. On/Off float ® �,
6. Sediment area in pump chamber 12. Redundant off float(optional) c-,,,
7. Pressure pipe to drainfield or alternative unit 13. Enclosed pump sediment shroud A Q
8. All floats to be set by designer 14_ Submersible centrifugal pump = .-,-
15. All floats to be set by designer Oa Q'
j
Sr o
O
Applicant's Name: `'t�tt Dave's Septic Services, Inc.
Jason Imus r" >'� P.O. Box 301
Tax ID#: N , rkF.k, Seabecic, WA 98380
22310-79-90802 ...--,,,-.....-1,_.,,,,,,,,,,
ltr. (360) 710-2449
Typical Header Manifold and Valve _=.ox
Nie*
FLOW .
CONTROL 0��.
VALVES N 1,1:1 51"
MPS
TO DRAINFIELD • o � cs'
�►�� _,tea �«��,,
PRESSURE: `•-�-aL�°-i — TRANSPORTATION PIPE
LATERALS '��'e '� ,®"'s'°`` FROM PUMP CHAMBER.
_ .";L'-' ?` arm i
000p �_
:RISER WITH LOCKING LID
TOP VIEW
NUMBER OF PIPES FROM VALVE.BOX . 1 B t([`� FLOW Hi
MAY VARY SEE DESIGN FOR DETAILS f--�,,,I �=ti, CONTROL
Ili la. l (NTS)
1 T; III _ ia :6...
PRESSURE
FLOW PRESSURE
Illy-ILc i} �7I�
FLOW
WASHED ROCK DRAIN SUMP
SIDE VIEW
Applicant's Name: ,'' . Dave's Septic Services, Inc.
Jason Imus �`" a '�4 P.O. Box 301
Tax ID#: Seabeck, WA 98380
22310-79-90802 (360) 710-2449
GfYIRE:6 le:V
Gravelless Pressi r` Cht.,mber
3. - g)
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r ,. ,,.:,.....: :_.._...€.:....:....: ..r.:.._ .._..._..::-.._...:.: ...E �.-₹€ ;...,.,
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t ,_ w,... __..,. ....._„ ......_.!:......... �:,:...._ x:•::::::::..:1 4 i yi lid- -,y r
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cat1. . ,,_ ,_ ,... ,:...__, .,... _,. a .. : . ........ .. ..._..... :. _.. ,, .__ �. _ _._ - .,�• - -- - -2-1-n ;
4 IM
(NTS) PRESSURE LATERAL AS SPECIFIED
ON DESIGN
1. Observation port 4" to 6"with 6" pit box ;. . ti,,CD
2. Backfill: See design for depth of cover 's ` £`4_ ,; w ^'-
•
3. Threaded removable screw cap BACKFILL MATERIAL .,,, y.../. ' `°" '
4. Native soil ,..-.. �� z
Designer recommends filter fabric over louvers to help preve≥I; p pROVED 4, 36"
soil migration
JAN 122026
DJ A
MASON COUNTY ENVIRONMENTAL HEALTH
Applicant's Name: Dave's Septic Services, Inc.
•Jason ImusT - F P.O. Box 301
Tax ID#: - ¢,t' • �; Seabeck, WA 98380
•22310-79-90802 tlfi$''`t°4 ' (360) 710-2449
Gravel Trench Pressure Distribution Drainfield
1. Undisturbed soil
2. Infiltrative surface
3. 6" PVC with drain holes, extended to the bottom of grave to monitor ponding
4. Drain rock: 6" minimum below pipe
5. Drain rock: 6" minimum above pipe
6. Drain tile (PVC): 1"typical pipe set level pressure line
7. Cover soil as specified on design (6"-24")
8. Inspection port minimum 6"
�
9. Pvc long sweep 90° schedule 80 APE s t
10. Threading removable screw end cap
11. Orifices to be up down at distance required on pump curve JAN 1 Z 2026
12. Filter fabric: *Designer recommends filter fabric over louvers to help prevent soil migration.
13. See design for lateral lengths MASON COUNTY ENVIRONMENTAL HEALTH
*Orifice shields are required, if orifice orientation is upwards at distance required on pump DJA
curve
P. 9.
10.
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36"
(NTS)
Applicant's Name: Dave's Septic Services, Inc.
Jason lmus ti ,s=;, P.O. Box 301
Tax ID#: Seabeck, WA 98380
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22310-79-90802 ` . •• (360) 710-2449
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Do not Damage Or Disturb Soils NOTE:
When Clearing Drainfield Area ADDITIONAL FEES ARE REQUIRED CONTACT
DESIGNER FOR DETAILS.
NO WELLS WITHIN 100'o
ALL COVER TO BE s 5 MIN/INCH
*Pump is required DIVERT ALL SURFACE WATER AWAY
*Pump alarm is required
X•' INSTALLER TO ENSURE FROM DRAINFIELD AREA.
J .
ALL ON-SITE SEWAGE PREPARE SITE&INSTALL DRAINFIELD
TANKS/COMPONENTS MUST BE
WATERTIGHT TO SURFACE DURING DRY CONDITIONS
(470 . �„ Normal usage must meet the following
DISCLAIMER
` cn This map does not represent a survey criteria or be lower
--r nor does it purport to show all easements
or encroachments,if any. Biochemical oxygen demand 130-174 MG/L
Additional Drains May Be Required TSS: 47-71 MG/L
A To Divert Surface Or Subsurface Water Problems
FOG: 10-20 MG/L
z _4<' INSTALLER MAY USE GRAVEL OR SUBSTITUTE DO: 0-1.0 MG/I.
0o O WITH INFILTRATORS
FOOT FOR FOOT.SEE ATTACHED NOTES! PH: 6.5-7.2
'•� SEPTIC TANK TEMP: 48-70*
STUMP SPLITTING OR STUMP
PUMP TANK GRINDING IS RECOMMENDED *With microscopic life forms present
,:-.*-1 FOR TREES GREATER THAN 12"
x !o IN DIAMETER WITHIN DRAINFIELD **Higher waste strengths will result in
h AREA.PROTECT SOILS WHEN CLEARING
"' /O premature failure of the septic system.
Building envelope area
• location and size may vary.
ROPOSED 60'x 60' Do not cross no building
4-BEDROOM AN MADE POND rr zone lines with buildings
HOME APPROX. 16'x 35' rmI.,
ci)
U -O
(465 g
m -4/),„,„,/VALVE BOX Z
or••••
RISER V\' Oise
4140 '144
O(480 U'N
,I —y �' 16
FMi�,_ ‘ 02,31
—y '
9
2 k 44ife
., 406, N
o o ,
(475
346+-` ids _
)-/ A .
6)45'PRESSURE LINES (470 15'Et
ON 6'CENTERS 2'+/-P/LEMINNE •
0' 50' 100'
OWNER: -; SCALE:
r#� DAVE'S SEPTIC-SERVICES INC. I" = 50
IMUS JASON R. DATE:
21 NE LAKEWAY DR .-= - P.O. BOX 301 02/13/2025
BELFAIR, WA 98528 SEABECK, WA 98380 REVISION:
TAX ID: 22310-79-90802 360$� • �'� 710-2449 4/27/2025-
:•_� � ( )
��• .. ' ,�� REVISION:
BMW 1....`• "":`' 5/1/2025