HomeMy WebLinkAboutSWG2025-00438 - SWG Application / Design - 11/4/2025 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584
` SHELTON:360-427-9670,EXT 400
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: SWG2025-00438
APPLICANT DAWN TREADER INVESTMENTS LLC Phone:
Address: 517 96TH LN SE OLYMPIA, WA 98501
OWNER DAWN TREADER INVESTMENTS LLC Phone:
Address: 517 96TH LN SE OLYMPIA, WA 98501
SEPTIC DESIGNER PAULA JOHNSON* Phone: 360-898-2255
Address: 171 E VUECREST DRIVE UNION, WA 98592
SEPTIC INSTALLER SHANE MAPLES* Phone: 360-463-8474
Address: 911 SE Arcadia Road SHELTON, WA 98584
Site Address: 171 N Kokanee Cove Way
Primary Parcel Number: 422165000083
Permit Description: Revision: Repair/Upgrade SFR 3-bedroom pressure system with
sand-lined bed drainfield
Permit Submitted Date: 11/04/2025
Permit Issued Date: 11/19/2025
Issued By: David Anderson
Current Permit Fees Paid: $995.00 (additional fees may be required upon installation of system).
Permit Expiration Date: 11/10/2026 (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.
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.
MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584
SHELTON:360-427-9670,EXT 400
BELFAIR:360-275-4467,EXT 400
--_ Public Health & Human Services ELMA:360-482-5269,EXT 400
FAX:360-427-7787
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.
- u ► s ov .
OFFICIAL USE ONLY
enil, MASON COUNTY DATE RECEIVED: Cn C CDn
AMOUNT RECEIVED: RECEIVED BY: ta• M Public Health & Human Services o m
≤
Environmental Health 360-427-9670,ext.400 or 360-275-4467,ext.400 , /f Cn o
415 N.6th Street-Shelton,WA 98584 S W G 2,02,5-- 0O U z m
ON-SITE SEWAGE SYSTEM APPLICATION
E
n
m
APPLICANT PHONE mr
Dawn Treader Investments, LL B\ Matthew Marshall (360)499-3594 a z
MAILING ADDRESS-STREET,CITY.STATE,ZIP CODE ::: g
V/ C
A-
517 96th Ln SE L Olympia WA 98501 CD 03
n 03
SITE ADDRESS-STREET,CITY,ZIP CODE
C '
171 N Kokanee Cove Way Hoodsport WA 98548 - 14'
NAME OF DESIGNER ITzEdfPHONE I N
Arrow Septic Designs, Inc Q (360) 898-2255
NAME OF INSTALLER O ` PHONE v I N
PERMIT TYPE(select one) -44�: DRINKING WATER SOURCE 0
(RESIDENTIAL OSS I]COMMUNITY OSS COMMERCIAL OSS t.j.PRIVATE INDIVIDUAL WELL E PRIVATE TWO-PARTY WELL Z I co
I PUBLIC WATER SYSTEM
TYPE OF WORK(select one)
1NEW CONSTRUCTION/UPGRADES irREPAIR/REPLACEMENT OTHER DETAILS(select all that apply) 0 TABLE X REPAIR CD 10'
SUBMITTALS 0 SURFACING SEWAGE RI EXISTING FAILURE 0 SHORELINE I,i W
t,IDESIGN FORM(REQUIRED) SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOT CREATED AFTER 4/1/2025? O
n I
WAIVER 3 BR .4 ac S)(IF APPLICABLE) O YES Q NO X I o
DIRECTIONS TO SITE AND SITE CONDITIONS:(ex.locked gate)
Take US-101 N toward Port Angeles and turn (L) onto N Lake Cushman Rd. Turn (L) onto I o
Cushman-Potlatch Rd/Lower Lake Rd. Turn (R) onto Lower Lake Rd. Turn (R) onto Dow I o
Creek Dr. Turn (L) onto N Kokanee Cove Way. Destination on (L). Address sign at driveway -4
(on ground). I o
co
SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED WITH TEST HOLE NUMBERS. I w
OFFICIAL USE ONLY BELOW THIS LINE
UPGRADE/FAILURE SOURCE(for reporting purposes)
❑VOLUNTARY ❑MAINTENANCE/PUMPING ❑BUILDING PERMIT ❑HOME SALE ❑COMPLAINT ❑OTHER:
INSPECTOR SOIL LOGS 70 X COMMENTS/CONDITIONS
0
2740" COO (Tyfc 0) 1° baffowl
lift-. a-10" 1,s
CO-Of " e(iCoa5 40 WitoM
RECORD DRAWING AND INSTALLATION REPORT
SOIL CODES:
V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REQUIRED FOR FINAL APPROVAL.
INSPECTOR SIGNATURE DATE APPLICATION EXPIRATION DATE APPLIC 'ON A PROVED/ISSUED BY DATE
I//(O/?ciz6 THIS F)cJl ((o (zo7c
M MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised:4/14/2025
DESIGN FORM—PAGE ONE Assessor's Parcel Number: 4 2 2 1 6 - 5 0 - 0 0 0 8 3
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 2025-00438 Designer's Name: Arrow Septic Designs, Inc
Applicant's Nam e: Dawn Treader Investments, LLC Designer's Phone Number: (360)898-2255
Mailing Address: 517 96th Ln SE Designer's Address: 171 E Vuecrest Dr
Olympia WA 98501 City State Zip Union, WA 98592
City State Zip Designer's Email
paulaj@hctc.com
m
t ; � `
E 4 K. .
.DESIGN A- E S. . , gi .1P , h,.... ;t
Treatment Device
❑Glendon O Sand Filter O Mound 0 Sand Lined Drainfield O Recirculating Filter O ATU Ll Other
Treatment Level(check all that apply): ❑A CI B 0 C O BL1 0 BL2 0 BL3 0 E ❑N
Drainfield Type
❑Gravity IRS Pressure O Trench G 'Bed O Sub Surface Drip
Septic Tank/Drainfield Specifications Laterals
'
Number of Bedrooms 3 - Schedule/Class 40
Daily Flow:Operating Capacity 270 gpd Length 45 / ft
Daily Flow:Design Flow 360 , gpd Diameter 1.25 in
Septic Tank Capacity(working) 1,200 gal Number 4
Receiving Soil Type(1-6) 3 Separation 2.5 ft
Receiving Soil Appl.Rate 0.8 gpd/ft2 Orifices
Required Primary Area 450 ft2 Total Number of Orifices 80
Designed Primary Area 450 ft2 Diameter "5/32" in
Designed Reserve Area 450 ft2 Spacing 28 in
Trench/13ed Width 10 - ft Manifold
Trench/Bed Length 45 - ft Schedule/Class 40
Elevation Measurements Length 7.5 ft
Original Drainfield Area Slope 0 - % Diameter 1.25 in
New Slope,If Altered 0 % Preferred manifold configuration used? 6'Yes O No
Depth of Excavation Up-slope 18+24=42 - in Transport Pipe
from Original Grade Down-slope 18+24=42 in Schedule/Class 40
Designed Vertical Separation 18+ in Length 40 ft
Gravel-based Drainfield Required? IIf Yes O No Diameter 2 in
Pump Required? I'Yes O No Dosing and Pump Chamber
Pump/Siphon Specifications _ Number of doses/day 4
Diff.in Elevation Between Pump&Uppermost Orifice 8 ft Dose quantity 90 gal
Drainfield Squirt Height/Selected Residual(head) 5 ft Chamber Capacity(flood) 1,000 gal
Uppermost Orifice Higher O Lower than Pump Shutoff Pump controls:Please check those required.
Capacity @ Total Pressure Head 51.2 gpmElf Timer O Elapse Meter ❑iEvent Counter
Calculated Total Pressure Head 18.24 ft If Timer: Pump on 1.5 minutes ,pump off 6 hours
Comments
Revised:4/14/2025
Lsify-AD
• V
DESIGN FORM—PAGE TWO Assessor's Parcel Number:4 2 2 1 6 - 5 0 -- 0 0 0 8 3
Permit Number: SWG 2025-00438
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
It Test hole locations 6Z! Drainfield orientation and layout Reference depth from original grade:
g Soil logs Ig Trench/bed dimensions and g Septic tank
EA. Property lines critical distances within layout Qf Drainfield cover
❑ Existing and proposed wells 0 D-Box/Valve box locations Reference depth from original grade
within 100 ft of property fig Septic tank/pump chamber and restrictive strata:
66 Measurements to cuts, banks,and locations 6g Laterals,trench/bed,top and
surface water and critical areas g Observation port location bottom
❑ Location and orientation of lZI Clean-out location 0 Curtain drain collector
curtain drain and all absorption It Manifold placement 121 Sand augmentation
components
6g Orifice placement Other cross-section detail:
6 I Location and dimension of Lateral placement with distance g Observation ports/clean-outs
primary system and reserve area to edge of bed
g Other Information
g Buildings
Bi Audible/visual alarm referenced Yes No
Direction of slope indicator Gi Scale of drawing shown on scale It 0 Design staked out
g Waterlines bar 0 El Recorded Notices attached
g Roads,easements, driveways, p Elevation benchmark and relative 0 I21 Waiver(s)attached
parking elevations of system components 61 0 Pump curve attached
gNorth arrow and scale drawing g 0 Evaluation of failure
shown on scale bar Non-residential justification
❑ el strength
' � 0 11f Flow
D . ";f:VAL
The undersigned designer must be notified by,'
`Vr r .�... t. lation g Yes 0 No
aw
O; PAULA JOY JOHN S.N.4.L is) `E le
Signatures l i.-' gf Nra•• ' Date
EXPIRES 11 41.--,,
The undersigned has reviewed this design on behalf of Mason County Public Health and determibmittSto be in
compliance with state and local on-site re a • ns: frOfr
//?o/ ?oZ6 4,4„4, o JgN3o FO
Enviro tal Health Specialist Date UST 2026,
?6'
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING COOT:
✓ The design is stamped"Approved"by Mason County Public Health. / lO �LV yFA�P
✓ The Onsite Sewage Permit has not expired,the Permit Expiration Date is: / ( y
✓ 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:4/14/2025
Arrow Septic Designs
171 E.Vuecrest Dr.
Union, WA 98592
January 9, 2026(revised to 3BR)
Mason County Department of Health Services
415N 6th St
Shelton,WA 98584
RE: Dawn Treader Investments, LLC Property(Parcel#42216-50-00083)Evaluation of Failure/Upgrade
Dear Inspector:
Attached is a septic tank permit for a property located at 171 N Kokanee Cove Way, Hoodsport, WA
98548. The existing septic system was installed with a permit in 1972. It has a 750-gallon septic tank
followed by a 40' drainfield trench. The existing septic was recently inspected for a home sale.The
pumper did a flow test on the drainfield and it did not accept water. The old tank is to be
decommissioned or removed and the old drainfield is to be abandoned.
Proposed is a new 1,200-gallon 2-compartment septic tank with effluent filter, a 1,000 gallon pump
chamber and a 10' x 45' (450 s.f.) sand-lined pressure bed. This is a compliant 3-bedroom repair/
replacement septic system. All septic components are over 100' from the creek at the back of the
property. We have designated a full reserve drainfield area.
The property owner's contact information is as follows:
Dawn Treader Investments,LLC
Matthew Marshall
517 96th Ln SE
Olympia, WA 98501
Phone: (360)499-3594
If you need further information,please contact my office at(360) 898-2255.
I�p
Sincerely,
PO 1,
SAN
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Licensed Onsite Wastewater Treatment System Designer
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• LAKE CUSHMAN NO. 9 II
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1 0 QQ { Zf>�. O 1000 Gallon Pump Chamber
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+\ \ / O°(0 S Lo PE a Sleeve waterline when within/ p''''er-'''':42;.,,
of septic transport line. Maintain +17
1OA-T=210'53 1
10' minimum between water
_N 6',A N E E coy P to line and septic tanks/drainfield.
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5 DEGREE ELBOW OR Co.UNTyENV
•TL SWEEP ING 9U NOTE,
O=OBSERVAT10N PORTS--TO) M�L]N
END O£. PVC PIPE PROM BOTTOM O
DIT TO FINISHED GRADE. REMOVP.BLE
'
� DETAIL CAP SHALL BE INSTALLED •
CLEAN OUT ON OBSERVATION PORT PIPE.
` I" N; acesM of c.,13SOWATtoLi prier.
NOTE, CLEANOUT TO BE FROM 0 TO 6 TOTAL OF lif IN SYSTEM.
INCHES BELOW FINISHED GRADE. t21 7'' 1S3S7Ru. A1 et( S`b aM C•33 SAtsD
MARX ENDS WITH• REBAR. CLEAN OUT **LATERALS ARE TO BE CENTERED
REQUIRED AT END OF EACH LATERAL. IN TRENCHES.
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Length Length Orifice # Distance from Distance from
Lateral# (In.) (Ft.) Spacing Orifices Feeder Line (In.) Cleanout (In.)
1 540 45 28 20 4 4
2 540 45 28 20 4 4
3 540 45 28 20 4 4
4 540 45 28 20 4 4
Total Lateral Length 180
Total#Orifices 80 I GPM = 51.2
(with 5/32 orifices)
Dynamic Head Calculations
Selected residual pressure: 5 ft.
Length (Ft.) #Orifices
Transport Pipe 40 80 1.44 ft.
Feeder Total
Lateral Line Length
Lateral#1 45 4 49 20 0.97 ft.
Lateral#2 45 2 47 20 0.93 ft.
Lateral#3 45 2 47 20 0.93 ft.
Lateral#4 45 4 49 20 0.97 ft.
Total Elevation Liftfrg\ 8.00 ft.
Total Dynamic Head 1 18.24 ft.
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Pump Specifications
FL50 Series 1 /2 hp
Effluent Pump
Submersible p
D[ ezVttlf‘LENT ... Lam, ra j
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Flow(Liters Per Minute)
0 38 76 114 151 189 227 265 303 341 379
60 I 1 ' f 1 1 1 1 1 1 18
50 - 15
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40 12
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30 iI 9 2
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0 10 20 30 40 50 60 70 80 90 100
0J4 £N'4 y�A�TH Flow(GPM)
FL50 Pl R8/2/2017 CCopyright 2017 Liberty Pumps Inc. All rights reserved. Specifications subject to change without nonce. libegii
FL50-Series Electrical Data
FULL THERMAL STATOR CORD
MODEL HP VOLTAGE PHASE LOAD LOCKED OVERLOAD WINDING LENGTH DISCHARGE AUTOMATIC WGT.
AMPS RAMPS TEMP CLASS FT
FL51A 1/2 115 1 12 48.6 120°C 248°F B 10 1 '/2 OR 2" YES 62 lbs.
FL51A-2 1/2 115 1 12 48.6 120°C 248°F B 25 1 %OR 2" YES 64 lbs.
FL51A-3 1/2 115 1 12 48.6 120°C 248°F B 35 1 1/2 OR 2" YES 66 lbs.
FL51M 1/2 115 1 12 48.6 120°C 248°F B 10 1 '/2 OR 2" NO 61 lbs.
FL51M-2 1/2 115 1 12 48.6 120'C 248°F B 25 1 '/2 OR 2" NO 62 lbs.
FL51M-3 1/2 115 1 12 48.6 120°C 248°F B 35 1 '/2 OR 2" NO 63 lbs.
FL51M-5 1/2 115 1 12 48.6 120'C 248°F B 50 1 '/2 OR 2" NO 65 lbs.
FL52A 1/2 208-230 1 6.5 24.1 ; 120°C 248°F B 10 1 '/2 OR 2" YES 62 lbs.
FL52A-2 1/2 208-230 1 6.5 24.1 120°C 248°F B 25 1 1/2 OR 2" YES 64 lbs.
FL52A-3 1/2 208-230 1 6.5 24.1 120°C 248'F B 35 1 '/2 OR 2" YES 66 lbs.
FL52M 1/2 208-230 1 6.5 24.1 120°C 248°F B 10 1 '/2 OR 2" NO 61 lbs.
FL52M-2 1/2 208-230 1 6.5 24.1 120°C 248°F B 25 1 '/2 OR 2" NO 62 lbs.
FL52M-3 1/2 208-230 1 6.5 24.1 120°C 248°F B 35 1 1/2 OR 2" NO 63 lbs.
FL52M-5 1/2 208-230 1 6.5 24.1 120°C 248°F B 50 1 %OR 2" NO 65 lbs.
FL50-Series Technical Data
IMPELLER MULTI-VANE CAST IRON
PAINT I POWDER COAT
SOLIDS HANDLING 3/4>>
CAPABILITY
40°C 100°F CONTINUOUS DUTY
MAX LIQUID TEMP 60°C 140°F INTERMITENT
MAX STATOR TEMP 130"C 266'F
THERMAL OVERLOAD 120°C 248°F
POWER CORD TYPE SJTW(1-PH)or SEOOW(3-PH),
or SJOOW(35',AND 50'-1 PH) dqPiez
MOTOR HOUSING CLASS 25 CAST IRON
VOLUTE CLASS 25 CAST IRON ® R �,
IMPELLER CLASS 25 CAST IRON 4/Q 14 ;,�'
SHAFT STAINLESS s0'vCpUN N30?O Z,,,,, ••••.,..,,
HARDWARE STAINLESS ryF t6
MECHANICAL SEAL UNITIZED CERAMIC CARBON i4 z
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FLSO_P3 R8/2/2017 COCopyright 2017 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. big*
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INSTALLATION & MAINTENANCE •
Pressure Distribution Systems—Sand Lined Bed ;ln"•
• •' 5100349 �
y JQ PAULA JOY JOHNSON..7‘)),)‘
1. Install Laterals with contour of the ground. • LICF tM�ti't) � ��
EXPIRES15� �+
2. Install bed bottom level. EXPIRES
3. Ensure sand is clean and meets C-33 standards. I—1`Z-Go
4. Install locator tape or rebar at each end of all drainfield laterals.
5. Install observation ports as indicated on the plot plan. One required in each corner of the
bed. Two with bottom extending to the bottom of the drainrock and two extending to the
sand/native soil interface. Glue "T"to bottom so Observation Port cannot be easily
removed from ground. Install removable cap on top of port at final grade level.
6. Install drainfield during dry weather and soil conditions; any soil smearing must be
eliminated by hand raking.
7. Install threaded clean-outs at the end of all laterals (cap must extend to within six inches
of finished grade and be marked with locator tape or rebar).
8. Install audio/visual high water level alarm.
9. Install 1/8"mesh non-corrosive pump screen(min. 12 sq. ft. surface area,not to interfere
with controls or floats.) Or pump screen may be substituted with Bio-Tube in septic tank
and block under pump. Pull bio-tube every 6-12 months and flush back into tank.
10. Install check valve in pump outlet line to prevent system from draining back into the
pump chamber.
11. Tee to Tee construction between laterals and manifold with orifices oriented at 6 o'clock.
Install laterals to the manifold with the orifices at 12 o'clock, (do not glue), after pressure
test and Environmental Health Dept. approval, turn orifices down (6 o'clock) and glue
laterals to manifold. Orifice shields may be used with orifices in the 12 o'clock position
in lieu of turning the orifices down to the 6 o'clock position.
12. Filter fabric required over drain rock prior to back filling. If the drain rock extends above
natural grade, run the filter fabric at least 2 inches down the trench wall.
13. Waterlines must be a minimum of 10' to any tank or drainfield(a reduction to 5' may be
obtained with a State waiver on lots that meet minimum lot size). Encase all water lines
within 10' of septic transport lines and under any driveway/parking areas.
14. Divert all storm water runoff away from on-site sewage system.
15.No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge
of the drainfield and reserve area.
16. Have the septic tank and pump chamber pumped or inspected every 3 years minimum.
17.No vehicular traffic over drainfield area or tanks.
18. Inspect floats, clean filters, and test high water level alarm every 6-12 months as needed.
19. All materials and workmanship must meet County and State regulations.
20. Deviation from this design without prior approval from the Designer and Mason County
Environmental Health Department will make this design null and void.
21. All manhole lids and access, sampling or inspection ports must have locking covers and
be located at ground level.
22. All pressure systems with a pump chamber outlet higher than the drainfield must have an
anti-siphon valve or a 1/8"hole drilled in the discharge pipe above the pump to prevent
siphoning. Ensure anti-siphon hole sprays down/away from tank opening.
23. Homeowner is responsible for all property lines and easements.