HomeMy WebLinkAboutSWG2025-00156 - SWG Application / Design - 4/29/2025 MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98584
J` SHELTON:360-427-9670,EXT 400
BELFAIR:360-275-4467,EXT 400
Public Health & Human Services ELMA:360-482-5269,EXT400
FAX:360-427-7787
On-Site Sewage System Permit: SWG2025-00156
APPLICANT PAULA JOHNSON* Phone: 360-898-2255
Address: 171 E VUECREST DRIVE UNION, WA 98592
OWNER EMPIRE HOME CONSTRUCTION LLC Phone: 360-751-8062
Address: P 0 BOX 241 KELSO, WA 98626
OWNER APPLICANT EMPIRE HOME CONSTRUCTION LLC Phone: 360-751-8062
Address: PO BOX 241 KELSO,WA 98628
Site Address: 2371 E Crestview Dr
Primary Parcel Number: 320215401001
Permit Description: 3-bedroom new manufactured home
Permit Submitted Date: 04/29/2025
Permit Issued Date: 05/27/2025
Issued By: Jeff Wilmoth
Current Permit Fees Paid: $555.00 (additional fees may be required upon installation of system).
Permit Expiration Date: 05/20/2028 (based on date of Inspection)
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 from Mason County is obtained.
3 Drainfield installation not to exceed designed upsiope 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
backfill 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/health/environmentalionsiteloss-inspection-request.php or call:
360-427-9670, extension 400.
. FFICIAL USE ONLY
L MASON COUNTY DATE RECENEO f c
ON wow KCMG, RECCMD N '1 (/ RNl
. Public Health & Human Services irY��7C� z 6,5
` Environmental Health 360-427-9670,ext.400 or 360-275.4467,ext.400 S W G w .. �- T j� 1!\ / 7 0
415 N.601 Street•Shelton,WA 98584 �/O 0 v 1 J 1Et.�, 4.
Z cn
ON-SITE SEWAGE SYSTEM APPLICATION
m
PHONE (/) r'
APPLICANT
Empire Home Construction (360)751-8062 a, c
MAILING ADDRESS•STREET.CITY.STATE,ZIP CCDE WA 98626 _ I CI
P.O, Box 241 Kelso
SITE ADDRESS•STREET.CITY.ZIP CODE 2371 E Crestview Dr Shelton WA 98584 W
NAME OF DESIGNER PHONE a IV
Arrow Septic Designs, Inc (360) 898-2255 _
NAME OF INSTALLER PHONE p O
Mason County Excavating (360)490-4133 N N
PERMIT TYPE(s*Mct one) DRINKING WATER SOURCE C)
Mi RESIDENTIAL OSS FIiCOMMUNITYOSS R I:coMNERCIALoss PRIVATE INDIVIDUAL WELL PRIVATE T'AT.PARTY WELL Z __
rrI PUBLIC WATER SYSTEM I
TYtPEE OF WORK(teloG o',)
fill NEW CONSTRUCTION/UPGRADES f.:REPAIR f REPLACEMENT OTHER DETAILS(,. ct W:nal eppy) ❑ TABLE X REPAIR (JI
SUBMITTALS C7 ❑SURFACING SEWAGE El EXISTING FAILURE El SHORELINE
co
RDESIGN FORM(REQUIRED) li7�SEPTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE WAS LOTCREATEOAFTER CTd0 I257 r
I
E WAIVER(S)(IF APPLICABLE) 3 BR .21 ac ❑ YES Q NO — x I
DIRECTIONS TO SITE AND SITE CONDITIONS(e.fockedgate)
Go out Hwy 3 and turn (R) onto E Agate Rd. Turn (R)onto E Crestview Dr. Destination on
(L). Across from 21 E Cross Rd. Yellow sign: "Empire - Lot 1" o 0
-I
0
SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAODED WITH TEST HOLE NUMBERS
OFFICIAL USE ONLY BELOW THIS LINE ----- --—
UPGRADE!FAILURE SOURCE(for report rlq pwposes)
0 VOLUNTARY 0 MAINTENANCEIPUMPING Q BUILDING PERMIT CI HOME SALE El COMPLAINT 0 OTHER
INSPECTOR SOIL LOGS i Ta 6,4 +0 L COV.MENTS/CONDITIONS
3Y 3 L( )-Y ,5 Z
-
RECORD CRA\MIIOANO INSTALLATION REPORT
SOIL CODES:
V=VERY G=GRAVELLY S=SAND L+LOAN Si=SILT C•CLLY E=EXTREMELY R=ROOTS REQUIRED FOR FINAL APPROVAL
IN' +NATURE DATE APPLICATION EXPIRATION DATE APP TVPPROVEO'15SU EO BY DATE
40 „40.1,
,1 , S,�o-ems s', -�� �� �h 5 z�- 1
TN•FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised:014/2028
I
DESIGN FORM—PAGE ONE Assessor's Parcel Number: 3 2 0 2 1 — 5 4 — 0 1 0 0 1
A design will be reviewed when 3 copies of each of the following
are
submitted:
ubtt esdetch,including all applicable Items on checklist.
Completed design form that has been signed and dated. Scaledlayout
4 Scaled plot plan,including all applicable items on checklist. Cross-section sketch,including all applicable items on checklist.
This form may be sunned and available for public view on the Mason County Web alto.Maximum paper size: 11"X 17" r
Airlt(r : .' a { ,';:.• GCATIoN
Designers Name: Arrow Se tlo Desi na Inc
Permit Number: SWG sy �d `n4 Designer's Phone Number: (360)898-2255
Applicant's Name:
Empire Home Construction �'Box 241 Designer's Address: 71 E Vuacrest Dr
.
Mailing Address: P.O.
Kelso WA 98b84 City State Zip Union, WA 98592
bit/ State Zip Designer's Email paUlaj@hCtc.Com
• DESIGI,l itok.fRAMETERS
Treatment Device
0 Glendon 0 Sand Filler 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter 0 ATU Nuweter8NR•600 U Other
Treatment Level(check all that apply): 0 A 0 B 0 C 0 BL1 0 BL2 0 BL3 0 E El N
Drainfield Type 0 Sub Surface Drip
0 li Gi
Gravity 'Pressure 'Trench 0 Bed
Septic Tank/Dra infield Specifications Laterals
Number of Bedrooms 3 Schedule/Class 40
Daily Flow:Operating Capacity 270 gpd Length 40 J ft
Daily Flow: Design Flow 360 gpd Diameter 1.25 in
Septic Tank Capacity(working) NuWater BNR-500 gal Number 5 _
Receiving Soil Type(1-6) 4 Separation 9 ft
Receiving Soll Appi. Rate 0.6 gpd/ft2 Orifices
Required Primary Area 600 ft2 Total Number of Orifices 40
Designed Primary Area 600 ft2 , Diameter 3116 in
Designed Reserve Area 800 ft2 Spacing 60 in
Trench/Bed Width 3 ft Manifold
TrencIVBed Length 200 ft Schedule/Class 40
Elevation Measurements Length header ft
Original Drain field Area Slope 5 % Diameter 1.25 in
New Slope,If Altered 5 % Preferred manifold configuration used? tif'Yes 0 No
Depth of Excavation up•stope 10 Into native in Transport Pipe
from Original Grade Down•stope 8 Into native in Schedule/Class 40
Designed Vertical Separation 13+ in Length 130 ft
Gravel-based Drainfield Required? 0 Yes 0 No Diameter 2 in
Pump Required? Fe Yes 0 No Dosing and Pump Chamber
Pump/Siphon Specifications Number of doses/day 4
Diff,in Elevation Between Pump&Uppermost Orifice 12 ft Dose quantity 90 gal
Drainfield Squirt Height/Selected Residual(head) 2 fl Chamber Capacity(flood) Loon gat
Uppermost Orifice fie Higher 0 Lower than Pump Shutoff Pump controls:Please check those required.
Capacity t✓Total Pressure Head 23.6 gpm of Timer 0 t apse Meter ❑v vent Counter
Calculated Total Pressure Head 16.39 ft if Timer: Pump on 2 minutes ,Pump off 6 hours
Comments
AP P Pt !!' Revised:4/14/2025
1 e>r°1 �lva,r
MAY 2 7 /�:�i A;i
MASON COUNTY FNtIIRONiciEN Ii\I.HE:\LT,.
JBIN
DESIGN FORM—PAGE TWO Assessor's Parcel Number:3 2 0 2 1 -- 5 4 -- 0 1 0 0 1
Permit Number: SWG
DESIGN CHECKLISTS
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
Test hole locations RI Drainfield orientation and layout Reference depth from original grade:
RIRI Soil logs Bl Trench/bed dimensions and RI Septic tank
critical distances within layout [if Drainfield cover
fill Property lines
❑ Existing and proposed wells
R D-Box/Vatve box locations Reference depth from original grade
within 100 ft of property RI Septic tank/pump chamber and restrictive strata:
❑ Measurements to cuts,banks,and locations Gd Laterals,trench/bed,top and
surface water and critical areas E Observation port location bottom
❑ Location and orientation of RI Clean-out location 0 Curtain drain collector
curtain drain and ail absorption0 Sand augmentation
p RI Manifold placement
components RI Orifice placement Other cross-section detail:
RI Location and dimension of RI Observation ports/clean-outs
lid Lateral placement with distance
primary system and reserve area to edge of bed Other Information
EA Buildings RI Audible/visual alarm referenced Yes No
O Direction of slope indicator RI Scale of drawing shown on scale CI ❑Design staked out
O Waterlines bar ❑ Fii Recorded Notices attached
RI Roads,easements,driveways, p Elevation benchmark and relative 0 C Waiver(s)attached
parking elevations of system components (2i ❑ Pump curve attached
RI North arrow and scale drawing El RI Evaluation of failure
shown on scale bar Non-residential justification
....1k ❑ RI Waste strength
$i'. $ ❑ ES Flow
D „:lyd ' U L
The undersigned designer must be notified , , e. ;. ofi ,ation 8I Yes 0 No
�3` .. E ,E+., 4-1-i-2,.a
Signatur ss` 4 ri >` 'iG4, 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- ' egulations:
5-27--25
Env' on nt Health Specialtt 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: ✓20—��
✓ 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 o he Mason County Wreb E site. Revised:4/14/2025
i
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9 1 O Audio-Visual Alarm
a. 02 Cleanout
""is O3 500 Gallon Pre-Trash tank
s Q 4 1�. I N0-1 needad �•, e,noie'te -4a wi“ J5e
�� pig �• O NuWater BNR-500 ATI)Tank
I 2.-ea).14))
•� , AM I O 1,000 Gallon Pump Chamber
4 \::
—.E G 2 S`1-v t�� % p R O Valve Cdttrol Box
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• +�':' PAULA JOY JOHNSONA
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MAY 2 1 2ilii I::
3 OF MASON COUN I ENVIRONMENTAL I iEr11 ii
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40' Ils
Valve Control Box with 1.25• Boll Vdvee
, . . . f . I, 3'
9
2' Trcnapart Lne
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1.25' Feeder Linea Typical Cleonw
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Typical Observe inn Parr
30* 1.25' lateral /
( 1 l 1 1 I I I I 0P✓f/
4 a
60' 1.0...—. 0 4 ,
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• 6iEQ'iArlonl OR1GIriRLJFINA� 6RRD6 D 'fiailed Drainfield Layo
e0RY sure: t • to'
I I I 1 �_
p1LL/ [ 1:to 12' 1!IO"FtLL/ 0. 10 20'
,. Sondy Loom fFOter Fobrk
CO s'f. "1--10 Cover ♦ Fie D1$T-VR5ED
' J�3i4' to
21, (5) 40• 1 .25" Schell. 40 _aferal.
l�ao 2-1.2' 1.25' Lalerol 10t'•1V11 0 (8) 3/ 16•� Orifices @ 60" O.C;.
�^,a.'t-t•SQ S Rock — 6' heti\de Per Lateral. 1 st 8 Last Orifice
�'O1 I 1/ 30 From End of Trench
36' ik Screw-On CCP
I3} 45 Degree Elbow
Littoral
Restrictive Layer
End of.
Oitcn --- —_-
Droinfieid Cross-Section View \46.11{ Detail - Cloon Out
Not To Scale
Note, Cleonoul to be from 0 l0 6 inc'es below
Note: 0 Observation poll l's Flnbhed Grads. Mork ends with Rebor. CM•in OutTo Be 4' PVC P e from Bottom of Trench Required at the End of Eoch Lateral.
To Finished Grade. Removable Cop shall be o a rf�
Instilled on Obeorvallon Port Pipe. Anchor � 1 �r+A� •
On Bottom with Glued-On Tee. •, . ` t�' •)a Arrow Septic Design .
Minirntm of 5 Total Required system 17
. C 3 6 0) 8 9 8- 2 �� 5 F
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A"��' PAULA JOY JOHNSON '•;S
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Length Length Orifice # Distance from Distance from
Lateral# (In.) (Ft.) Spacing Orifices Feeder Line(In.) Cleanout(In.)
1 480 40 60 8 30
0
2 480 40 60 _ 8 30 30
3 480 - 40 60 8 30 30
4 J 480 40 60 8 30 30
6 480 40 60 8 30 30
Total Lateral Length 200
Total#Orifices 40 GPM= 23.6
Dynamic Head Calculations
Selected residual pressure: 2 ft.
Length(Ft.) #Orifices
Transport Pipe 130 40 1.30 ft.
Feeder Total
Lateral Line Length
Lateral#1 40 2 42 8 0.15 ft.
Lateral#2 40 11 51 8 0.19 ft.
Lateral#3 40 20 60 8 0.22 ft.
Lateral#4 40 29 69 8 0.25 ft.
Lateral#5 40 38 78 8 0.28 ft.
Total Elevation Lift p p R O V �a 12.00 ft.
Total Dynamic Head MAY 2 7 2025 V. . 16.39 ft.
'".' () j COUN1�'ENVIRONMENTAL.HE ALT ,
SECURED LID1wiTH tw��p 6'a SEAL THREADED UNION
24'DIAMETER
ACCESS RiEER •
f1NIt3HGRADE SOME
4-- _ VALVE• .
` / ('i.
MOM SEPTIC • ,- ' Y • =---�►TO GRAINFIELD
TAti1� m
EMERGENCY STORAGE I ANTI SIPHON
HIGH WATER ALARM LEVEL ► - — .. VALVE•
NORMAL Off LEVEL WORKING VOLUME ` pLC1At
/ "�`--► FOR FLOAT
[ • ' MOilfiTlf�IO
SEDIMENT SHROUD• - .!- __ I .CHECK VALVE• 1
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SEDMR14Ts_ jt9 !lint
`��:• 610•248 I ' PUMP CHAMBER
PUMP
PAUCA JOY JOHNSON 'A
P: _ E ! Ea �`S b AS NEEDED
Septic Tanks s eet standards required by WAC chapter 246-272C and FIGURE 2
manufacturer must be on Dept of Health list of registered sewage tanks.
u►►t7r)H Publication 0337-022 •Page 35 of 65 • • 7
5 of 1
t • Bronze construction available(139 series)
� 1,1 , •;} ,;-• • High head version available(145 series)
:-dl;:i..a.';i
• Double shaft seal versions available for added protection
Flow-Mate on models 140/145.
For more Inform atton,see Technical Data Sheets FM2781,FM2783.
In high head dewatering or effluent
applications where pumping
performance is critical, this robust ;`. Rn®itRFOAAVNf.E CURVE
family of pumps is known for reliability, "0DC"t''"a"S
durability and performance. These I- � ,1MM'■01111111111111
pumps are especially suited for harsh • ,p■■.■■■.
environments.Zoelters coot run design { • i� " Y .q■■■...■
and corrosion-resistant,powder coated
epoxy finish add up to a long-lasting, u
�'��������
trouble-free product. �����������
APPLICATIONS:
1,, ,, S'•••■■■•■ 1, -
• STEP or onsite applications sja". ` ■�,�'■•■•■• !,
• Water transfer v.-
• Light commercial dewatering ; v ••■•,•■•■• / . Q':;
SPECIFICATIONS: , �� ,_ „ IHEIlI
"
• Available In automatic or nonautomatic �SiIiPHAAtAfNU M1 �MMEM"M'I�
• Model 137,139,140:1/2"(12 mm)spherical solids ■■■■.II.■�®
capacity with vortex impeller ' M m
• Model 145:3/4"(19 mm)spherical solids capacity with N , „ u
vortex Impeller ,,..,,w„ ;;�,
krF ,`T 4 1
•
_ : ;li At N1' r4'��'( PUMP PERFORMANCE CURVE
Dose-Mate MODEL 151/152/163
This Is our fastest growing tine of effluent u- 45 191
pumps.The 150 series Is trulyaworkhorse
designed for reliability under extreme i2_ 40
conditions in an effluent environment.
150 series pump curves cover a wide range to- 15 162
of applications. They are well suited to u 10
applications with low pressure pipe(LPP)
and enhanced flow STEPsystems.Zoeller's 8 a- is 151 .
cool run design and corrosion-resistant, 5
powder coated epoxy finish, in addition °" Zo
to the hermetically sealed,oil-filled motor ,s (�;
and non-clogging vortex impeller add up to 4-
: : :::: 0u1e4tee
product. -
s
• STEP or onsite applications r-+�MAD ]�'�►1r1/~� 0—
• Light commercial dewatering 81111ivateturstwnn GALLONS 70 20 30 'o so w 20 87 9� r°°
E3 PECIFI CATI DNS: LITE0s o eo w' ,M Igo 200 2lt0 2d0 2� 360
• 1-1/2"NPT discharge 4* FLOW PER MINUTE ,�t5,-6
• 3/10 HP through 1/2 HP �ri
• Available in nonautomatic or with a variable level
piggyback mechanical switch
• 1/2"(12 mm)spherical solids capacity with vortex
thermoplastic impeller
t�t� �'f7
For more information,see Technical Data Sheet FM2784. 1,,,, p„ , ,0D Aft rights reserved. ZOELLER PUMP CO. 1 502.778-2731 18O 8- 7pot (ps. m l 9
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MAY2f •
6 0 F 9 ar 1ENTAL HEALTH
W,S(YA CCL\';N EN`lIRC,41
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DUAL PORT AERATOR-I
WATERI}GkT LID VENT OP)
RISERS(TIP)
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PVC(TYP) a //"" 1/2"PVCI
1 AIRLINE/ MASTIC
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4 6 REDUCER --1, 6.
2'TEE 1I` 1'PVC RETURNLNDEE
2'PVC
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TRASH CHAMBER DIGESTER CHAMBER CLARIFIER
OPERATING CAPACITY;417 GALLONS I OPERATING CAPACITY:421 GALLONS CHAMBER •
FLOOD CAPACITY: FLOODCAPACFLOOD:191 GA.
TTY:494GALLONS iaoo*GALLONS
6 . i 68* r
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It?A OV COUNTY ENVIRONMENTAL HEACTH • • DIFFUSE TBAR BNK ARS
4-
JSyy 't SLUDGE RETURN ��
T`•I.4 h // 1 S'TAPER -
DEV VIEW
STONE-FREE NATIVE SOIL
OR COMPACTED SAND
INSTALLATION INSTRUCTIONS OVER STONY SOIL
1)Excavate tank hole with vertical walls to 1 foot larger than
tank on all sides.
2)If bottom of hole is stony,install 3'of compact sand&level d' a-2` -
out with screed.
3}Install lank In center of hole,keeping 1 ft void space on j_ __ _ _ _ _ _(— _ _
al sides. 24'BLOWER
r I
24'RISERS P)
4)As tank Is filling with water,fill In void space with compactOVSING CAS• •
granular est(sandy)soli tree of largeers to a oses.
5)Install rest of system,&affix risers to adapters with , I
waterproof adhesive. C I >0 4'8'
6)Perform watertightness test in field as required by local
)urladiction. I u RISER 1• I
7)Upon approval to backfl 1,carefully backfu with native I;
soils over top of tank. TRASH CHAMBER I (/GESTER IIGLMLEI581
8)Final grade the surface to avoid chase/ling surface L L__ ._ _.____I f __J
water toward tank. `l
TOP MEIN
r-•24a
.::;;; A,.f a o.,t :., AEROBIC TREATMENT TANK DETAIL FOR
4 ` Nu WA TER BNR-500 TREATMENT UNIT
Eli I.�`R�+
,.� ENVIRO-FLO, INC. REVISED:
,� - Wastewater Treatment Technologies 3/01/12
"� : P.O.BOX 321161,Flowood,MS 39232
- �>• a SCALE
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PARTS LIST NuWater NR Assembly Diagram V I
A DUAL PORT AERATOR M.POLY DIFFUSER BAR(2 t ('
B 3/d'RUBBER 00'Wr CLAMPS(2) N r PVC(3 1,2-SECTION)
III
C.3/8'BARBED ADAPTOR X 1!2'NPi(2) 0 t'SLIP CAP 0
D.117'SLIP X 1/2"NPT ADAPTOR P ins-CLEAR PVC HOSE(OPTIONAL 5') A
P 1'STREET X 11T NPT BUSHING(3) O 1/2'PVC PIPE(BY INSTALLERI giro
'or 90'ELBOW(3) R.1' PVC PIPE(BY INSTALLER)
G.r X r X 1/2'TEE S.T PVC PIPE(BY INSTALLER) [1,„_4 Ai;.
H rp0'ELBOW(3) T. 118`BARBED ADAPTOR TO 1/4'NPT(2)
2 X 1-BUSHING U.1/2-STREET X 1/4-NPT BUSHING(2) iy
1 2'SANITARY TEE V 1v2"PVC COUPLER(2)
< r PVC CROSS W 2-COUPLER(BY INSTALLER)
t-COUPLER(SY INSTALLER) ,
Revised 2/25/12
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a ww Septic De/Ji em, J nc. i ':
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NuWater BNR Pretreatment _r� '�'ti°t . �f
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INSTALLATION& MAINTENANCE
Pressure Distribution Systems 6100 ,
e PAULA JOY JOUNSONc NPa.
1. Install Laterals with contour of the ground. ra
EXPIRES
2. Install trench bottoms level.
3. Install locator tape or rebar at each end of all drainfield laterals.
4. Install observation ports as indicated on the plot plan. One required at distal end of each
lateral in drainfield with bottom extending to the drainrock/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.
5. Install drainfield during dry weather and soil conditions; any soil smearing must be
eliminated by hand raking.
6. 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).
7. Install audio/visual high water level alarm. Redundant off switch not required.
8. Install check valve in pump outlet line to prevent system from draining back into the
pump chamber.
9. 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.
10. 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.
11. 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.
12. Divert all storm water runoff away from on-site sewage system.
13. No curtain drains allowed within 10' of the up-slope edge or 30' of the down-slope edge
of the drainfield and reserve area.
14. No vehicular traffic over drainfield area or tanks.
15. Inspect floats,clean filters, and test high water level alarm every 6-12 months as needed.
16. All materials and workmanship must meet County and State regulations.
17. Deviation from this design without prior approval from the Designer and Mason County
Environmental Health Department will make this design null and void.
18. All manhole lids and access, sampling or inspection ports must have locking covers and
be located at ground level.
19, 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.
20. All transport lines under driveways or parking areas must be encased to prevent crushing.
21. Homeowner is responsible for all property lines and easements,
22. Please Note: When you begin using your septic system, contact your septic installer to
discuss setting up a schedule for your required Operation & Maintenance on your
NuWater pretreatment system.