HomeMy WebLinkAboutSWG2008-00026 - SWG Application / Design - 2/4/2008 ONSITE SEWAGE SYSTEM APPLICATION
MASON couxTYtnlaLrc>�arTH Official Se only _
426 W.CEDAR STREET �-@�. •
PERMIT NUMBER: SWG �-' ... 4 0
PO BOX le88
SHELTON,WA 95584 DATE RECEIVED: } AMOUNT RECEIVED:! jr 0
(360)427-9670, Ext.352
APPLICANT DATE CHECK APPLICABLEnBUB •
(' O NEW SYSTEM 3
f W 0 REPAIR SYSTEM C
MAILINGDAYTIME PHONE O TABLE S REPAIR
O L TANK REPLACEMENT x�
O RV HOLDING TANK ONLY y
CITY SIATF ZIP (requires waiver) •
L 1 C�O O INSTALLATION PERMIT ONLY
SITE ADDRESS tl �SINOLE FAMILY =
/63? OTHER C
Please describe: gLL-fi� 3
4-191 NAM F DESIGNER U P NE NU BER Noft* 1�?
WILL / M Mro-37t AsbuWr r ap"fdr aII fnstelJ dmm Z`
NAME OF INSTALLER
STALR DRINKING WATER SOURCE Iry I La
0 PRIVATE INDIVIDUAL WELL0 YRIVATE TWO-PARTY WELL
p ITG
NUMBER OF BEDROOMS LOT SIZE: ACRES FT X 811'COMMUNITYYIIPUBLIC WATER SYSTEM Iw
Q `-O"P, SYSTEM WFI* IW
SYSTEM NAME I C
SPECIFIC DIRECTIONS FOR LOCATING SITE S
From Hoodsport go north past the Tides Restaurant and turn right on Canal View and •
then stay left on private road empty lot is at the end.
S ` from main road and test holes must be flacced with test hole numbers r
Official use only below this line �0
SOIL LOGS CONQAENTMONDTriONS Id
01We A
I-i
SOIL TEXTURE CODES:
V -very G-J=1V S=Sand L—loam SI=Gift C=dsv E_Oftemely
R 9I6 TURE DATE DESIGNBXPIRATION DATE DESIGN APPROVED BY DATE
CK-� i6��y 3 tU
DATE IN3rALATI BXPBtATION DATE INST TION
INSTTTON FEE PAID L
APP 15ATE
Revised 4/9/2007
MASON COUNTY
DEPARTMENT OF HEALTH SERVICES
June 10, 2008
Highland Excavation LLC
200 E Arellem Road
Union WA 98592
RE: Design for MCGRAW
Case No: SWG2008-00026
Parcel No: 323305106007
Your design for the above referenced parcel has been review and is APPROVED.
Please refer to the comments section of this letter for any additional information.
Please call me at (360) 427-9670, ext. 353 if you have any questions.
Sincerely,
Cindy Waite
Environmental Health
Mason County Health Services
COMMENTS:
6/10/2008 1 of 1 SWG2008-00026
William L Russell 200 E Arellem Rd. Union Wa 98592
360-898-3773 Fax 360-898-3774
WASTE WATER DESIGNS LIC.5100184
Jan. 31, 2008
Mason County Department of Health
426 W. Cedar Street
P O Box 1666
Shelton WA 98584 Parcel # 32330 5106007
Subject— Class A Waiver request for Michael McGraw.
NOTE this site already has an approved gravity system for a 3 bedroom
home that was installed in July 1980 and is almost in unused condition. And it
is just beyond the 50 foot set back line. See attached original plot plan
As part of the mitigation measures to help comply with the new
standards, please consider the following.
The bottom of existing drainfield is 3.5 feett down in the soil. This means
that it is just a short distance away from the underlying better sandy soil we
encountered on the day we dug the test hole. Hence the system is almost a
sand filter system now.
OPTION 1
Permit the installation of this bottomless sand filter design as a
replacement for the old system and allow the building permit application to
proceed. This new design is just beyond the 50 foot set back line.
Drainfield failure is not likely to happen, no matter what kind of aeration
device is installed. Due to the fact the aeration is the means that sand filters
are recovered, when they have failed from ordinary septic tank effluent. Since a
sand filter when properly built already meets treatment standard A it is only the
use of sub-standard or the lack of quality materials that is rated at standard B.
As quoted from a person at the WOSSA meetings.
This system due to lack of space must be installed in the same area as
the gravity system. Meaning that the old septic tank will be removed and the
existing nearly new drainfield will be destroyed.
OPTION 2
Due to need to locate the tanks near the tide waters of Hood Canal every precaution
must be taken to have water proof tanks and connections to the tanks. Even though the
location of the bottom of the tanks will be above the high tide line. Hence the following
precautions shall be taken to water proof these tanks.
PROCEDURES TO WATER PROOF TANKS: At the point of manufacture have the
required tanks set aside without the lids installed.
First acquire a supply of Grancrete. This is the trade name for a none toxic cement that
was developed by NASA to in-case radio active material for permanent storage. It is
impervious to all known household cleaning products and including salt water. It has a
very high strength in that one inch thickness is equal to 4 inches of concrete. When
properly applied to cement it is absolutely water proof. Once it has taken a set, the only
way to remove it is to grind it off.it cannot be chilled off with ordinary tools.
This would be placed with a trowel, similar installing plaster to a depth of 3/8th of an
inch thick on the flat surface's with a'/4 inch fillet in all of the corners. This will not
only water proof the tank but also add tremendous strength to the tank.
OPTION 3
RESERVE DRIP LINE SET BACK FROM PROPERTY LINES FROM 5 FEET TO 2 FEET;
This is needed in order to obtain the maximum square footage that is needed in the
limited space available. The effluent will be pre treated to treatment standard B WITH
MORE THAN 24 INCHES OF VERTICLE SEPARATION.'
A test hole dug by this designer reveled 48 inches of really nice medium sand. I covered
this hole up due to the request of a neighbor.And was told that the route from above to
this part of the McGraw was over his property. So the only access to this area now is to
climb up the 73%slope.
Also it is possible to install a reserve area on the 73%slope with a 10 foot set back from
the water line.
Owner states that if the septic mitigation measures are meet (approved)
that the planning and buiking department will allow a reduced set back for the
proposed new building.
Thank you William L Russell
51
\ Li ENSED MslS
Q%PIR6812/��/d
On-Site Sewage Systems (Chapter 246-272 WAC)
Request for Waiver From State Regulations
(completed by applicant)
Local Iiaidth DepermtemJ
Name: (1) c / see instructt0rss
Address: �U. oy
4 Zq
�J )vu Pa gS-7o
Signature:
Property Identification: (3) 32- 3G^
ic,
ompleted by applicant)
WAC Number: (4) WAC Requitement: S) Wai r Sou
246-272 f�. ^ , ,, /t„L It l �
Subsection: G2I
Justification(mitigation measures to be provided): (7)
(completed by health officer)
Review Criteria: (g) Mitigation Measures(in addition to those proposed): (9)
Comments/Conditions: (10)
Type of W aiver. (11) Class ]Class B Class C Request DOH review before granting? Yes_ No
Neighbor Notification: (12)
Required? Yes_ No X if needed are agreements,easements, etc.properly filed? Yes _ No—
(completed by health offteer) .
This Request For Waiver From State Regulations has been reviewed according to the provisions of Chapter 246-272 WAC On-Site
Sewage Systems. The review criteria applied,and the mitigation measures proposed and/or required,have been evaluated for their ability
to provide public health protection at least equal to that provided by this chapter WAC.
] Denied A Approv rated—Subject to all comments,conditions and requirements noted in Sections B and III.
Local Health Officer (13) Date: u
MASON COUNTY R
PUBLIC HEALTH
.1 1,i! �- — -
PO BOX 1666 SHELTON,WA 98584
SHELTON (360)427-9670
FAX (360)427-8442
ELMA (360)482-5269
BELFAIR (360)2T5-4467
Application for Waiver/Appeal
Amount Paid•
ReceiptNumbe . I —
Instructions Swci,oOr_accw�
1. Complete Farb 1 and 2: No aerortmnetio 11 n can he made until these parts are gilts eonmlated
2. Snbmit completed applications arms to the health deparmrant for review.
3. Submit Waiver foe of 5110.IX1
p, Ca,vial i
PART 1: Applicant/Parcel Identification
Name of Applicant Date tz ��
Mailing Address , �oX �FR 9 Telephone-36L ZrY 6- �S
"/+/-,46 WA
Assessor's Parcel Number
Subdivision Name and Lot L t t " r i Au r Tr, 7 gk &4<S 6 /7., +13 t- LA� t[7ZL
PART 2: Nature of Waiver/Appeal.
❑ On-Site Sewage Requirements ❑ Food sanitation Requirements
❑ Building permit review policies ❑ solid Waste Requirements
❑ Zocaawk WAC 246-272-09501 ❑ Group B Water Syarmn Requireateab
❑ §0,*ng mark WAC 246-272-11501 ❑ Water Adequacy Req�rirements
m/On-Sire Standards ❑ Bnfomemant Timelines
❑ Contractor cermfeaeaion requirements 0 De m m ental Determinations
(installer,Pumper,O&MSpecialiso
Deacnption of Waiver/Appeal(include justification,additional material may be attached):
e line
2 Re' *� n_tin tankn s t b-rk of SO feet d toy ,�,$ptl iioh
tide fine.
3. Reduce the setback of 5 feet down to 2 feet from the property lines or the
reserve p uneg.
See attwdlednThIgErtiOlt
Applicant Signature: Dam'
Updated:01-9.20019
Pap 1 of 2
PART 3: Health Department Evaluation(Staff Use Only)
IA. Type of Determination Required: 1B. Type of On-Site Waiver(if applicable):
❑Appeal Pmaiver ❑None required Class A ❑Class B R Class C
2. Identification of Specific Code/StandardMetermination(include date of determination or latest code/swidmd
revision):
" q4--z7
3. 6Nq[uire Of Appet fd�
� r fI � ai
CJ3) ,Gr hr -Iv 2r I. Ior
4. Hearing Official:
❑Board of Heath ❑Health Officer
❑Pollution Control Hearing Board ❑Health Services Director
❑ Certified Contractor Review Board R Envirwtmeatal Health Manager
.
5 Mitii�tirug Factors: S oh,l
`
!
b / alums /
,AJ ✓ f
6. �1 have ew watv4:r-4 ce re�sr.It is c4jmplete,andmingation required by stare and local poficy
has been submined. JJ
Staff: Date �1 �
PART 4: Determination of the Hearing Official
The heating official has determined that approval of this request will not adversely affect public heath and is
hereby granted This decision is based on the following findings and conditions:
❑ The hearing official has determined that approval of this request could potentially have um adversely affect
public heath and is hereby denied. This decision is based on the following findings:
Hearing Official 9 fit-` ° '— -` Dater
0 T`�'t'� I � � updated:01-9.2008
Pop 2 of 2
DESIGN FORM—PAGE ONE Assessor's Parcel Number:32330 5106007
A design NV be reviewed when 3 cooler of each ofthe foBowing are submitted:
Completed design form that has been signed and dated. Scaled layout sketch,including all applicable items on checklist
10 S f ted plot plan,including all applicable items on checklist. Cross-section sketch,including all applicable items on chemist.
Maximum slse: 11"X 17"
PARCEL IDENTIFICATION
Permit Number: SWG 200&M26 Designer's Name: William L Russell
Applicant's Name: Michael R McGraw Designer's Phone Number: 36041911J773
Mailing Address: P O Box 429 Designer's Address: 200 E Arellem Rd
Onalaska WA 99570 Union WA 9"2
city State zip
DESIGN PARAMETERS
Treatment Device
O Glendon 0 Sand Filter O Mood Sand Lined Drainfield O Recirculating Filter,
Biof ltar Type:
O Aerobic Unit Mak&MoM TRD1000 500 Di cifa don Unit Makr/Model Advanced Septic Treatment Systems TRD 1000
1400-7 , DrainAdd
p Gravity o Pressuh O Trench TYIK X Bed O Sub Surface Drip
Septic Tank/Drainfield Spedftcatlons Laterals
Number of Bedrooms 2 Schedule/Clan 5<H Lfy
Daily Flow:Operating Capacity I N O gpd Length 1 aF '`0""' 2Lq ft
Daily Flow:Design Flow / V a gpd Diameter ( in
Septic Tank CapacityPy N.SETS, 1100 gal Number S�
Receiving Soil Type(1-6) 3 Separation
Receiving Sod Appl.Rate (I,Uri Orifitxs
Required Square Footage Afo ft Total Number of Orifices 6 5
Designed Square Footage 2.70 fit Diameter i/Y in
Percent Reduction Taken p % Spacing ;Z Y in
TrenclnBed Width /D ft Manifold
Trench/Bed Length .17 ft Schedule/Class UGH '-Py>
Elevation Measurements Length $ ft
Original Drainfield Area Slope / % Diameter /yr, in
New Slope,If Altered / % Preferred manifold configuration used? O Yes O No
Depth of Excavation Upalope y$ in Transport Pipe
from Original Grade y g in Schedule/Class SG If yU
Designed Vertical Separation A t in Length JA f� ft
Gravelless Chambers Required? O Yes %No ❑Optional Diameter DJ f T 200f /j,/ in
Pump Required? N Yes O No DosWA Pomp Chamber
Pump/Siphon Specifications Number of doses/day A.- g
Difference in Elevation Between Pump Shutoff and Uppermost Dose quantity / 8 C ;fa&$ .2't,] gal
Orifice 413 ft Chamber Capacity FVOM Al STS TaNrc Bel
Uppermost Orifice 12 Higher 0 L.ower than Pump Shutoff Pump s:Please c those required.
Capacity @ Total Pressure Head 2.$1 y spin Lintimer se Meter l3}�veM Counter
Calculated Total Pressure Head 1 ?. ft If Timer: Pump on 2?5 e c Pump off •3 it&S
DESIGN FORM—PAGE TWO Assessor's Parcel Number. ..?1 " 3 _O _- j 1 -_ _p( OCj7
Permit Number: SWG :LOOS 0067-6
DESIGN CEM rSTS
Sealed Plot Plan Scaled Layout Sketch Cross-Section Sketch
❑ Test hole locations ❑ Draintield orientation and layout Reference depth from original grade:
❑ Soil logs ❑ Trench/bed dimensions and ❑ Septic tank
❑ Property lines critical distances within layout ❑ Dra afield cover
❑ Existing and proposed wells ❑ D-BoxNalve 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 ❑ Laterals,trench/bed,top and
surface water and critical areas ❑ Observation port location bottom
❑ Location and orientation of ❑ Clean-out location ❑ Curtain drain collector
curtain drain and all absorption ❑ Manifold placement ❑ Sand augmentation
components ❑ Orifice placement Other cross-section detail:
❑ Location and dimension of ❑ Lateral placement with distance ❑ Observation ports/clean-outs
primary system and reserve area
to edge of bed Other Information
❑ Buildings ❑ Audible/visual alarm referenced Yes No
❑ Direction of slope indicator ❑ Scale of on scale ❑ ❑Design staked out
❑ Waterlines bar ❑ ❑Recorded Notices attached
❑ Roads,easements,driveways, P ❑ ❑Waiver(s)attached
ping 1 ❑ ❑Pump curve attached
❑ North arrow and scale drawing 3j3 t: ❑ ❑Evaluation of failure
shown on scale bar 5 s+6aA Non-raidmtial Justiftention
Li E a D DESIGNER ❑ ❑WastC Strength
EXPIRES 13/IN ❑ ❑Flow
DESIGN APPROVAL
The undersigned designer must be notified by installer at time of installation L9 Yes ❑ No
Signature of Desigil I Date
The undersigned has reviewed this design on behalf of Maser County Public Health and determined it to be in
compliance with state and local on-=,:Ij
Environinentil Health Specialist Date
CAUTION: DESIGN APPROVAL IS VALID ONLY UNDER THE FOLLOWING CONDITION:
✓ The design is stamped"Approved"by Mason County Public Health.
✓ The Onsite Sewage Permit has not expired,the Permit Expiration Date is: -?I f, I
✓ Drawf eld 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.
Revision Data 8/1&M
Highland Excavation 200 E Arellem Rd. Union Wa 98592
360-898-3773 Fax 360-898-3774
wrusseV hctC.Com
DESIGNER COMMENTS
By William L Russell
LIC.51O0184
For Michael McGraw
1. PROPERTY LINES: The designer is using property lines as indicated by others. The
property owner is responsible for establishing necessary property lines to assure
proper placement of the system.
2. UTILITIES: Property owner is responsible for the location of all utility lines (water,
sewer, power, phone, and gas) before the installation of the system begins. Note: any
water lines within IO feet of the system must be encased with a second pipe(see code).
3. SEWER PIPE: Sewer delivery pipe to septic tank must be ASTM 3034 PVC PIPE, and
shall have 1/8th' or more fall per foot. Pipe bedding shall be placed under pipe, so as
to prevent deflection of the pipe when backfill is place on it. Install sewer line clean
out at about 2 feet from building.
4. OLD DRAINFIELD: The following is recommended. When excavating on this site and
the old trenches are encountered and exposed that the old drain rock be removed and
C-33 sand be used to replace the drain rock.
5. OLD SEPTIC TANK: Decommission as per code. This site will require that it be
completely removed.
6. SEPTIC TANK: Use 1200 gallon unit as per TRD 1000 specifications
7 puW CHAMBER. The TRD 1000 is the pump chamber. Location of tanks still must
meet all set back requirements. See waiver request.
8. TANKS: Should be carefully sealed. As a high water table is expected on this site.
9. FILTRATION: is provided by the TRD 1000
10.SAND LINED BOTTOMLESS DRAINFIELD: Because this design includes the TRD 1000
that meets treatment standard A,plus BOD and TSS will be less than 10- 10 and will
provide highly oxygenated effluent that is odorless. Hence this combination will meet
the higher loading rate that is allowed in the RS&G (page 16) for sand lined trenches
and beds. Also this combination will provide the highest level of treatment that this
designer knows of. Therefore this combination will meet the highest standards that
are required for any mitigation measures that could possibly be required.
11.WATER SUPPLY:'a Public well serves this property. And its source is over 100R from
the tanks and drainfiekl part of this system.
12.DESIGN CRITERIA: This design requires approved waivers in order to meet all of the
State of Washington and Mason County rules and guidelines.
13.Because the designer cannot control how the system is used, the designer assumes
no responsibility for the absorption properties of the soil and assumes no
responsibility for the life of the system. If any changes are made to the design without
approval of the Designer and Mason County this design shall become null and void.
14.ELECTRICAL REQUIREMENTS; The TRD 1000 will come delivered with UL approved
controls and only needs to be connected to an electrical source by a licensed
electrician.
I5.NOTE: By law the installisS contractor is not to perform any electrical
connections,unless that contractor is also licensed to do so.
[JUm : 0
16.SITE CLEARING: N/A for this site
17.LAYOUT: Designer has established approximate contours and location of the system.
The installer and designer will do actual layout of the system, before installation.
I&EQUIPMENT USED: Prefer an excavator with enough reach to place back fill without
ever being on the drainfield area. And or a gravel shooter truck can be used.
19.STORM WATER: Storm water shall be diverted away from the absorption and tank
areas.Although this should not be a problem on this site.
20.CHECK VALVE: Check valve is to be installed so as to prevent effluent from draining
back into the pump chamber. Check valve must be accessible to O/M people for
maintenance.
21.CURTAIN DRAINS: N/A on this job
22.WELL TO TRANSPORT LINES: N/A this job
23.QUALIFIED INSTALLERS: A list of qualified installers is available from Mason County
Department of Health, and only licensed installers shall be used. If a homeowner
attempts to install this system, this designer considers this design to be null and void.
ni n 1
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EXPMS I V 1710
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Sand Lined Trench Systems—Ra ommmded Standards and Guidance
Effective Data:Ady 1,2007
4.4.4. Excavation Depth: The infiltrative surface at the bottom of the filter media(the
bottom of the excavation)must be installed at least 6 inches into original,
undisturbed soil,except where the original soil is Soil Type 1. The maximum
excavation depth for filter media placement shall not exceed ten feet from
finished grade.
Table 1. Loading Rates for Sand Lined Trenches
A B C
Soil Type Septic Tank Sand lined
Effluent Trench
Application Application
Rate Rate
GPD/f? GPD/fit=
Soil Type 1:(Gravelly and very gravelly coarse sands,all extremely
gravelly soils excluding soil types 5&6,all soil types with greater 1.0' 1.0'
than or equal 90a/o rockfragments)
Soil Type 2: Coarse sands 1.01 1.0
Soil Type 3: (Medium sands,loamy coarse sands,loamy medium 0.8 1.0'
sands
Soil Type 4: (Fine sands loamy fine sands foams loams 0.6 1.0
Soil Type 5: [Very fine sands,loamy very fine sands;or silt loams,
sandy clay loams,clay loams,and silty clay loams with a moderate 0.4 0.62
or strong structure(excluding a Play structure
Soil Type 6: (Other silt looms,sandy clay loams,silty clay loams, 0.2 0.3=
and clay loamy
Soil Type 7: (Sandy clay,clay, silty clay,and strongly cemented
firm soils,soils with a moderate or strong platy structure,any soils Not suitable Not suitable
with a massive structure,any soils with appreciable amounts of
expanding clays)
'A loading rate of 1.0 gpd/ft2 for ASTM C-33 send may be too No for long term service.Concern has been
expressed with premature failure and/or clogging of sand lased vench systems with ASTM C-33 send as the filter
media. Several possible contributing factors have been discussed such as;a)the ASTM C-33 specification allows for
too large of a percentage of fine material(passing a No. 100 sieve)which may cause the finer material to become
suspended in the filter causing an impermeable barrier near the top of the filter,b)loading rates of 1.0 gaMday are
inappropriate and should be reduced. While the Technical Review Committee recognizes the concerns,the
committee feels that the data presented is inconclusive at this time To address premature clogging of ASTM C-33
sand,the following suggestions are provided:reduce loading rates applied to sand lined trench systems to no more
than 0.8- 1.0 gaMday incorporate into the system deal pn methods of improving oxvaar +ccbao�within the filter
such as;increasing the dose frequency and/or including a veining system in the Slier with versa extended to the
atmosphere. Vents may need to include an odor scouring device such as an activated carbo""qWthe
end of the vent.
r.
This design includes the TRD1000 that meets treatment standard A and will provide higltl
effluent that is odorless. Hence this combination will meet the higher loading rate plus meet the
requirements of the 50 foot shoreline setback waiver. 0�4/
WA DOH publication#337-013 Page 16 of 28
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Inpul,parameters Calculation Size Pump For
• Orifice Size 1/8 . kwhes NnImum Flow Rob per F 0.43 gpm Design Flow RateF 28.2 gpo
Residual Heed at last Od&x F5—o-o--,-1 feet Number of OdRces per Zone F 65 Total Dynanilc How F 12.8 feat
'Oakss{lscktg 20 i feet TdWf: WRab'WZdne F28.2 'OOM
Number of Laterals per Ce F 5 Number of Laterals per Zom r 5 AcWW
Lateral Length 24.0 feet %Flow Merentlel 1st and Last 1.6 % dwb n kW ls.meter Of TypkFMDW h
' ' diatrlbutlon labrab. Typical hrdues
ieihpeftbirhR/S to174".
Cabral PipsClwaBdhedul
'Lelsraf'Lins&a 1.00
ONklbraing Valve Mode Ndne • LIRlo men"m 25 bet
MsniloM Long& 6.0 fast Reaidual Head at Lot Odlloa F 5.00 feet
&UnN M Pipe Claas/Scheduh 40
ManbW Line Size 1.50 • Inches : Prictional head Losses
LflttonAw&M 25 feet FMddLona*Labrab 0.2 feat Calclete
Transport Length 1ZO feet HodLossthroughDlsMbuft f 0.0 feet
Transport Pipe ClaoBcheduk 40 . Head Low in MenRoM 0.1 het
Traeapo t Line Size 1.50 . Inches Head Loss In Transport Pipe 0.6 het
bbclisrya Adesra*Stze 1.50 E mdm Head Lde4 90digh&AdNamd 24 feet
Flow Meter None . inches Hod Low through Flow 0.0 fad
'Addcn'Fdctlon Laves 2.0 fed 'Add-on'FrkAon Loves 20 tad
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