HomeMy WebLinkAboutSWG2024-00259 - SWG Application / Design - 6/11/2024 ® MASON COUNTY 415NfiSHELTONSTREET, 0427-9 70,EXT 400
SHELFAIR 360-2754467,EXT 400
BELFAIR'.360-2]SA46],EXT 400
Public Health & Human Services ELMA 360-482-5269,EXT 400
FAX 360127-7787
On-Site Sewage System Permit: SWG2024-00259
APPLICANT KELLY CRAIG J & DEBORAH L Phone:
Address: P O BOX 64315 UNIVERSITY PLACE, WA 98464
OWNER KELLY CRAIG J &DEBORAH L Phone:
Address: P O BOX 64315 UNIVERSITY PLACE, WA 98464
SEPTIC DESIGNER CINDY WAITE' Phone: 360-701-0205
Address: 80 E Pickering Lane SHELTON,WA 98584
Site Address: 481 W Nahwatzel Beach Or
Primary Parcel Number: 520045000043
Permit Description: Repair-2BR Oscar X02
Permit Submitted Date: 0 6/1 112 0 2 4
Permit issued Date: 06/20/2024
Issued By. Jeff Wilmoth
Current Permit Fees Paid. $805.00 (additional fees may be,egm,ed aren Installation of system).
Permit Expiration Date: 0 611 7/2 0 2 5 based on data oflnspecfnonl
Permit Conditions:
1 Proposed development subject to zoning requirements and approval by the planning
department staff per Mason County Title 17,
2 Permit must be installed by a Mason County Certified Installer unless prior written
authorization treat Mason County is obtained.
3 Drainfield installation not to exceed designed upstage and downsides 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
bacithil 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.govlhealth/environmental/onsiteloss-inspection-request.php or call:
360-427-9670,extension 400.
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ON-SITE SEWAGE SYSTEM APPLICATION
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APPLICANT PH..E m
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CRAIG/DEBORAH KELLY 253-389-1441 z
rwuNGADORFss STREET,cIn STATE SIR IS"
PO BOX 64315 UNIVERSITY PLACE WA 98464 ED
sGFmOREBS-STREET am nP cmE
481 W NAHWATZEL BEACH DR SHELTON WA 98584 CID
NAME OF OFSI GNES PHONE
CINDY WAITE 360-701-0205
NAME OF INSTALLER PHONE C>
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PER PF xIM oneJ DRINKING WATER SOURCE
pMITTY I
In RESIDENTIAL COSS IICOMMUNID(OSS HCOMMERCIALOSS F.I PRIVATE INDIVIDUAL WELL ❑ PRIVATE TWO-PARTY WELL Z A
TYPE OF VNRrclselananei D PUBLIC WATER SYSTEM
M NEW CONSTRUCTION!UPGRADE$ W REPAIR,REPLACEMENT OTHERDETA.SIEolr-ii lnalewl ' [I TABLE IN REPAIR LOT
❑ SURFACING SEWAGE [A EXISTING FAILURE ❑ SHORELINE
su DESIGN FORM(REQUIRED) iI SEPTIC DESIGN;REQUIRED) ELOSOQMS � LOTsm Wr
6 WAIVERL57 UFAPPUGABLE) 2 197'X62' 0
0
oIRFCTIONS To S I e ANO SITE EONmnoNs , ,CleA sere
GO TOWARDS MATLOCK, TURN RIGHT ONTO W NAHWATZEL BEACH DR, PRCEL IS 0
ON LEFT SIDE OF ROAD, SOIL LOGS ARE AT THE TOP OF THEIR PARCEL, NEXDT o o
TO THE ROAD.
IA
SITE MUST BE FLAGGED FFOM MAIN ROAD A.TEST HOLES MST BE FLAGGED WRH TESTXOLE NOMBERS. W
- OFF.CAL USE ON_Y SEA OWTHIS LINE --
UPGRADE I FAILURE SOURCE Lmr mnat'r9 0�✓Flarael
❑VOLUNTARY ❑MAINTENANCES PUMPING ❑BUILDINGPERMIT ❑HOMESALE ❑COMPLAINT ❑OTHER-
INSPECTOR SOIL LOGS LGMMtN I S I CONDITION
(� JUN 1 024
By
RECORD URAWwGAND NSTAI LATION REPORT
SOL CODES.
V-VINI G-GRAVELLY S=SAND L-LOAD SI=SILT C=CLAY E=EXTREMELY N=ROOTS REQUIRED WR HNAL APPROVAL
INS BC R$IG AIURE GATE APPLIGAIION EXPIRATION DATE AB4LICATION APPROVED.'ISSVED BY GATE
T IS R MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE REVISED T2' P015
DESIGN FORM—PAGE ONE Assessors Parcel Number: 5 2 0 0 4 — 5 0 — 0 0 0 4 3
A design will be reviewed when 3 conics of each of the following are submitted:
Completed design form that has been signed and dated- e 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 maybe scanned and available for public view on the Mason County Web site.Marinnun paper size: 11"X IT
` / PARCEL IDENTIFICATION
Sl
Permit Number: SWG ID " lzy Designer s Nanic: CINDY WAITE
CRAIG/DEBORAH KELLY Designer's Phone Number _
Applicants Name: _ 360-701-0205
Mailing Address: PO BOX 64315 _ Designer's Address' 80 E PICKERING LANE
UNIVERSITY PL WA 98464 SHELTON WA 98594
Cit State Zip Ci[ State Zip
DESIGN PARAMETERS
Treatment Device
❑Glendon Biofilter ❑Sand Filter ❑ Mound ❑ Sand Lined Dminl'icld ❑ Izv&I,dating I*i lier'fppc:
❑Aerobic Uvit Make/Mudcl ❑ Disinfection Unit Makelvadd Other X02 TO OSCAR DF
Drainfield Type
❑Gravity ❑ Pressure El rench ❑ Bed ❑ Sub Surface Drip
Septic Tank/Drainfield Specifications Laterals
Number of Bedrooms 2 Schedule Class NETAFIM
Daily Flow: Operating Capacity 180 gpd Length 100 t2
Daily Flow: Design Flow 240 gpd Diameter in
Septic Tank Capacity(working) 1200 gal Number 2
Receiving Soil Type(1-6) 4 Separation 1.5 IF
Receiving Soil Appl. Rate .6 gpd/ft' Orifices
Required Primary Area 400 it' Tot ber of Orifices 6X50=300
Designed Primary Area 408 fit? eler, EMITTER in
Designed Reserve Area VERY LIMITED fi .5 in
Wot.u' m Trench/Bed Width 17 tt ry '_ ,{ Manifold
Trench/Bed Length 24 ff - ti h s� \rVOv 1 SCHEDULE 40
5 sl G Elevation Measurements c nD AITE 60(RETURN/SUPPLY) IF
Original Drainfield Area Slope >1 1 in
New Slope, If Altered / Preferred manifold configuration used? 0 Yes 0 No
Depth of Excavation UP-slope 0 in Transport Pipe
from Original Grade gown-slope 0 in Schedule/Class NA
Designed Vertical Separation 18 in Length ft
Gravelless Chambers Required? ❑ Yes 0 No 0 Optional Diameter in
Pump Required? EdYes 0No t+� p@ gs's Ep nd Pump Chamber
Pump/Siphon Specifications 7VFfinintlh6i'oR7Josiplsr I 360
Diff. in Elevation Between Pump& Uppermost Orifice 1 VNgTl UitCll/* .50 gal
Drainfield Squirt Height/Selected Residual(head) Chamber,Cap a4ua{fiuod�— 1200 gal
Uppermost Orifice Ef Higher ❑ Lower than Pump Shutoff �-hump cpptrols: Please check those required.
Capacity @ Total Pressure Head gpm imer li lapse Meter 11 Event Counter
Calculated Total Pressure Head �_ SQ. _ it If Timer: Pump on 30 SEC Pump off 3.5 MIN
Comments
INSTALLER TO NOTIFY DESIGNER PRIOR TO STARTING INSTALL. DRAINFIELD TO BE JUTED.
REFER TO THE X02 INSTALLER MANUAL. SET TIME FOR 180 GPD.
DESIGN FORM-PAGE TWO Assessor's Parcel Number: 5 2 0 0 4 - 5 0 -- Q- 0 0 4 3
Permit Number: SWG
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
RJ Test hole locations Rf Drainfield orientation and layout Reference depth from original grade:
R1 Soil logs E6 Trench/bed dimensions and 56 Septic tank
0 Property lines critical distances within layout 6d Drainfield cover
m Existing and proposed wells 9f D-Box/Valve box locations Reference depth from original grade
within 100 ft of property E9 Septic tank'punip chamber and restrictive strata:
m Measurements to cuts,banks, and locations IZ Laterals,trench/bed,top and
edace water and critical areas 69� Observation port location bottom
cation and orientation of IdO Clean-out location r'� ❑ Curtain drain collector
curtain drain and all absorption 4WManifold placement r: - ❑ Sand augmentation
components , ''Oritice placement Other cross-section detail:
bb Location and dimension of 56 Lateral placement with distance if Observation ports/clean-outs
primary system and reserve area to edge of bed
g Other Information
lid Buildings 9f Audible/visual alarm referenced Yes No
la Direction of slope indicator R1 Scale of drawing shown on scale Rf ❑ Design staked out
0 Waterlines bar ❑ ❑ Recorded Notices attached
R1 Roads,easements,driveways, ❑ ❑ Waivers)attached
parking R e f- bs,�f. ❑ ❑ Pump curve attached
Ib North arrow and scale drawing "o ----- fd ❑ Evaluation of failure
i'Jq
shown on scale bar - � Non-residential justification
= ' e: �- ✓'P ❑ ❑ Waste strength
❑ ❑ Flow
DESIGN APPROVAL
The undersigned designer must be not ,ed by installer at time of installation 16 Yes ❑ No
_ Q S E ZOZy
Signo re of Designer 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'a`1 regulations:
Gn von a lealth Specialist Date
CAUTION: DESIGN APP OVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped" pp ..
by Mason County Public Health. t 25
✓ The Onsite Sewage Permit has not expired, the Permit Expiration Date is:
✓ Drainfield site conditions have not been altered to adversely affect conditions of design approval.
Please Note: The system must be install feed installer,
unless prior authorization is obtained fro �Lu lic Health.
Jl1N 0 [ii24 �,,,rr�` 7i11�
An Installation Fee is re wired. �lrso
This form may be scanned and available for public view on the Mason GCKW Web site.
Updated Date: 12/7/2015
,52
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I. Proposed RV
2. Storage/shower
3. Audio visual alarm
4. Clean out � y
5. 1200 AO2 tank
6. 1200 gallon pump tank j V V q
7. Supply and return 1" m
line I s
8. Head works — 6
9. Aerator
10. Drainfield
11 . Owners well
12. Neighbors well
13. Neighbors well
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TABLE 2
Hydraulic Layout
05-50 coils
c . e
�4 4 1 1.4 7.8 50,
� 5 5 1 1.75 9.75 50'
6 3 2 2.1 6.2 50'
�8 4 2 2.8 9.2 50'
8 4 2 2.8 9.2 50,
� 10 5 2 3.5 11.5 50'
TABLE 3
Hydraulic Layout
OS-100 coils
sm�� -
�G�2 2 1 1.4 4.6 50'
• '®3 3 1 2.1 6.9 50,
�4 4 1 2.8 9.2 50'
• 5 5 1 3.5 11.5
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TABLE 4 �; �s) ill
Minimum Shoulder Lengths o2 6WQy WAiTEA
OS-50 LICENSED DESIGNER
Design Flow
240 22.5
300 28
360 33.5
480 44.5
600 55.5
The dimensions in Table 4 represent the minimum required length of the outer
shoulder which include coils, spacing between coils, and shoulders. These lengths
can be extended to match site conditions. Minimum shoulder s i acing�c
between coils is 6 inches. See illustration below for example opd l ig Q1 a
1' r7
TABLE 5
Minimum Shoulder Lengths
OS-100
r
X240 14' 2 inches .
360 21' 4 inches
480 28' 4 inches
600 35' S inches
The dimensions in Table 5 represent the minimum required length of the shoulder
which include coils, spacing between coils, and shoulder. These lengths can be
extended to match site conditions. Minimum shoulder spacing is 6 inches. See
illustration below for example of shoulder length.
Basal Area:
The basal area is comprised of the total area where the C-33
in contact with the receiving soil. The minimum required basal ar
by dividing the design flow rate by the soil loading rate specifie 'W .7
(local codes may have differing loading rates). or cl 51004 1E m; 1
LICE DES NER C
L%W HES OSn6
Combining Hydraulic Layout and Basal Area Requirements:
To combine the coil layout and the basal area, start with the coil layout.
Refer to Tables 4 or 5 for minimum shoulder lengths. Zero to 5 percent slopes
(0-5% slope) are considered flat for basal area calculations and set back
considerations. It may be advisable to place the coils on the up side of the basal
area when the slope is 2 % or more. On flat sites, the coils should be placed in the
center of the basal area. The coils will be arranged in a single line, although the
line can be curved to match site contours. Also, no emitter shall be placed within
6 inches of the C-33 sand media shoulder.
On sloping sites (>5 to 20% slope) the coils will be placed parallel to the
contour and one edge of the coils must be placed about 12 inches from the
upslope basal boundary. There must be at least 6 inches separation added between
the drip tubing in different OS-50 coils. With the OS-100 coils the spacing is t1 "
already included with the 85 inch (7.1 foot) area. Side slopes of the C-33 sand
media is at least a 1 to 1 slope. Add the minimum coil length to the side slopes to
determine the minimum basal area length. Divide the total sa r a square
footage by the minimum basal length to calculate the basa eAih( f 9 ,
e + N
JUN
XO2 Tanks
213 t
I
7000 W1km 1000 W11m '
v3 113
II
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3 ae+s 9
Treatment tank Discharge toIN
Illustration 1 0 LI I, E IGNER L
Introduction:
The OSCAR-XO2 treatment system is comprised of two technologies: the X02(4
chambers: septic, aeration, clarifier, and pump chambers) and the OSCAR: drip tubing coils,
C-33 sand, reverse flush headworks, and control equipment.
Wastewater is collected in the septic chamber where gross solids are separated.The
waste stream is then aerated in the aeration chamber. Aerated effluent passes through the
clarifier then into the pump chamber.The expected waste strength from the XO2 will be 30 f
mg/I CBODS and 5 mg/I TSS. Effluent is dosed through a 120 mesh disc filter to OSCAR coils,
installed in ASTM C-33 sand. Effluent discharged from the coils is treated by the sand prior
to infiltrating into the receiving soil.The treatment level in the final discharge is expected to
reach 2 mg/I CBOD, 1 mg/I TSS, and 36 FC/100 ml, meeting Treat ntPv0 7hgXV c
only be used with the OSCAR. �/ �I SLSd R��t itll 3
JUN 2 f?
Table 1-2"`
Design Septic Aeration Clarifier* Pump Aerators Suggest tank sizs,'
Flow
5009Pd 670 330 330 <- -,
1,000 gal. trea/tmgy�i�BC�gal. discharge
750 gpd 1,00 500 1,0001,50 ment3t 1,SOO discharge
1500 gpd 2,010 9903,000 treatment, 3,0' discharge
2000 gpd 2,680 1,320 03k& 1500 treatment&3k& 1500 discharge
2250 gpd 3,000 1,500 1 3k&1500 treatment&3k&1500 discharge
3,000 gpd 4,000 2,0 2,000use multiple tanks to meet volume needs
3,600 gpd 4,700 2,310 2,310se multiple tanks to meet volume needs
'Min' m liquid volume needed.
cal health jurisdictions may rk volumes.
'"Table 1-2 is a quick reference guide.
Aerator:
For each 500 gpd design flow one aerator will be needed. Round up the
design flow to the next 500 gpd value. For instance, a 600 gpd design flow will
need 2 aerators (600 gal. rounded up to 1000 gal. needs 2 aerators).
The aerator box must be installed so that the bottom of the aerator box is
at the same elevation or higher than the top of the tank risers, see Illustration 3.
If the site is sloped the aerator box can be buried, upslope from the tanks. The
sides of the aerator box lid must not be buried. Aerators can be installed up to
several hundred feet away from the diffusors. The line between aerator and
diffusors must slope toward diffusors.
Aesthetic concerns should be considered when placing the aerator box.
Place the aerator away from house windows, doors, and areas where people tend
to congregate, such as patios areas and barbecues.
eaeo L,c
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Illustration 3 CWDYIiCENSED E y
6 pE51G�R
Headworks: HWN-.7-RF
'/< inches Arkal disc filter, mesh, 130 micron
'/< inches Arad flow meter
Three oil filled pressure gauges (0-100 psi)
5 Netafim normally closed solenoid valves (Model 80)
v
OSCAR-XO2 Parts list (500 gpd).
Each OSCAR-XOz unit will include:
LFi P-RF-AR or LFi P-RF-ARA control panel y� siooa, Nm eL�
LOT-30, 1/2 hp, 120 volt pump LICEsvr e 'TNE�1
Hi-Blow Aerator, HB-80 (80 liter/minute) cz
Hi-Blow diffusers 1, - -
• OS-50 or OS-100 Coils
• PVC fittings and drip tubing adapters
• HWN-.7-RF automatic headworks
• Solid Yx inches poly tubing for connections /
• 2 float switches tD `I•�
ppR 0 ar 01
JUN 9
1 I
Manifolds • . PVC
Y•y
Irk ' FR
min
Manifold and blank tech line adapter and connection.
LICENSEE DESIGNER
Blank tech liner
• Bioline connection with internal coupling
1.
A
JUN
Inspection ports.
EScrew Type Cap -
---- or Slip Cap - - < Screw Type Cap
or Slip Cap
F--4" PVC Pipe
4"PVC Pipe (Length NVen'e
)
(Length Varies)
_ 1/4 x 4" Long
" Slats(4)@ 90'Apart
r < "Toilet Icing
4" PVC Tee
OSCAR Cover Options.
There may be a desire to cover the OSCAR with something additional to the
specified ASTM C-33 sand. The intent is not to have too much additional cover over
the final C-33 sand layer that would prevent the sand from accessing oxygen from
the atmosphere. Placing too much cover will inhibit plant root growth. Because
the C-33 sand is sub-surface irrigated, grass and other ground cover will grow
rapidly, forming a firm protective cover over the OSCAR. At the end of the first
growing season the C-33 sand layer will be as firm as native soil to walk on.
Options include:
• Landscaping jute mat with grass seed or ground cover plantings
• A thin layer of mineral soil low in organic content (<10% organics)
• Thin layer of crushed or washed rock for wind erosion protection.
• Thin layer of bark to wood chips.
• Aggregates the size of rip-rap (5-6 inch diameter) can be "placed" on the OSCAR
for protection from deer or elk traffic. These larger sized aggregates must be
placed, not dropped, on the OSCAR to prevent breakage o iping and other
materials.
• Wire mess can be installed over the sand to prevent er on d allow for grass
to grow. eF v
Do Not Cover C-33 Sand with: �g q•
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LICENSED DESIGNER
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• organic mix (manufactured top soil from compost)
• filter fabric
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Installation Notes
Oscar-XO2 Treatment System
481 W Nahwatzel 710 SE State Rt 3 52004-50-00043
1. The on-site septic system has failed. Drainfield is corrugated black pipe that is
filled with roots,
2. Installer refer to X02 install manual.
3. Oscar drainfield: ASTM C-33 sand media as per Washington Department of
Health's Recommended Standards and Guidance for Intermittent Sand Filter.
4. Concrete tanks required as per page#8
5. 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.
6. Minimum of 6" of sand throughout out the lateral area, must be level.
7. The tanks may be moved as necessary to accommodate building requirements.
B. Septic tank location must meet all required setbacks.
9. Keep wheeled vehicles off the drainfield area before, during and after installation.
10. Tracked equipment only
11. ,All ground, surface water and roof drains must be diverted away from the septic tanks
and drainfield.
12. 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
13. Curtain drains can be no closer than 10' upgradient and 30' down gradient of the
drainfield
14. Exposed restrictive layers, cuts, banks, etc. can be no closer than 50' downhill from the
drainfield.
15. Install access risers on all tanks, valve box and ends of laterals.
16. Make sure septic tank risers are epoxied or caulked to cast in riser rings on tank.
17. Lids must form a water and gas tight seal with the access risers.
16. This system must be installed by a Mason County Certified installer.
19. Deviation from this design without prior approval from the designer and Mason County
Health Department will make this design null and void.
20. 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. he minimum design flow per bedroom per day is the operating capacity of
ninety g s multiplied by 1.33. This results in a minimum design Flow of one hundred
twenty Ilo per day. This creates a surge factor of 33% but anticipated flow is ninety
gallo A,per oom per day.
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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. Leaky plumbing can hydraulic overload your on-site septic system
9. Keep waste strength at residential waste strength parameters.
10. Spread loads of laundry through the week.
11. Do not use excessive bleach or detergents with added whiteners.
12. Do not shower, do laundry and dishwasher at the same time
13. Antibiotics can kill or impair the biological process in the septic tank.
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