HomeMy WebLinkAboutSWG2023-00285 - SWG Application / Design - 7/3/2023 584
MASON COUNTY 415 N 6TH STREET,SHELTON,WA 98 400
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: SWG2023-00285
APPLICANT HAMAR REVOCABLE LIVING TRUST Phone: 360.620.7130
Address: 8740 NW HOLLY RD BREMERTON, WA 98312
ENGINEER MICHAEL STATEN Phone: 360-275-9374
Address: PO BOX 984 BELFAIR, WA 98528
OWNER HAMAR REVOCABLE LIVING TRUST Phone: 360.620.7130
Address: 8740 NW HOLLY RD BREMERTON, WA 98312
Site Address: 20 E Olyview PI
Primary Parcel Number: 221212190011
Permit Description: New SFR - 3BR Gravity
Permit Submitted Date: 07/03/2023
Permit Issued Date: 08/04/2023
Issued By: Jeff Wilmoth
Current Permit Fees Paid: $525.00 (additional fees may be required upon installation of system).
Permit Expiration Date: 07/27/2026 (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 upslope 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/environmental/onsiteloss-inspection-request.php or call:
360-427-9670, extension 400.
/
OFFICIAL USE ONLY
MASON COUNTY DATE RECEIVED: / ��
—�1 `/ cn D
COMMUNITY SERVICES C u)
ANOI RECEIVED: RECEIVED BY, a In
ro
Public Health(Community Health:Environmental Health) Z (43
415 N Oth ta:gal.40SF 1,an,or A 98594 azl.400 `AIG� /D -T — „ram gi O
�ISN oth:;hec; iFel:on,WA 985N< S�/{/`J �^,(`/1/�"J11 J( U
v �Zz 6
13
ON-SITE SEWAGE SYSTEM APPLICATION >
m n
APPLICANT PHONE m
0P,Qta � _ Ha,NANc.. 3 � 0 � 0 7130 Z
c
MAILING ADDRESS-STREET.CITY,STATE,ZIP CODE
CO
? 7 '-‘o N W t-\ 0LL_y P-o gc�EV,A .t2._t-t>fv WAL a8 31.A m
m
SITE ADDRESS-STREET.CITY,ZIP CODE , '��'
L ,T 1 b‘-y;•tsw PL , - (e n t� � i l - a� .-- q ec ` , 14�
NAME OF DESIGNER �-, Jr) li-IONE I l
—)
p�_ K 1 tcreA\S jjj JUL Q3 2023 bHONEc 0 - sZ�]-5 _NAME OF INSTALLER
• PERMIT PE(select one) ��y DRINKING WATER SOURCE „it-.I. 0��8% I O I�
RESIDENTIAL OSS COMMUNITY OSS n COMMERCIAL OSS P-IV TE INDIVIDUAL WELL// E:PRIVATE TWO-PARTYWELL Z
TYPE O�F WORK(select one) UBLIC WATER SYSTEM ii7R U%AR p
W(NEW CONSTRUCTION/UPGRADES REPAIR/REPLACEMENT OTHER DETAILS!select an that apply) ❑ TABLE IX REPAIR I
❑ SURFACING SEWAGE 0 EXISTING FAILURE 0 SHORELINE
SUBMITTALS �� Q] —f
(yj DESIGN FORM(REQUIRED) SEDTIC DESIGN(REQUIRED) BEDROOMS LOT SIZE r
6WAIVER(S)(IF APPLICABLE) 3 a,q AG- O I- )
DIRECTIONS TO SITE AND SITE CONDITIONS.(ex locked gate)
F-R17 sI<-cor7Il4„oN5•CZ 3- LEi%T pn) Id'.
NN No uy - L - -row c,sA Te_c.L./Avz Ran-auvP ,Ty or) Le_RT
b
%,V'1_z -+► ‘1.6.474 Stkc.L S�&NS - T fin) L 4. PT UcJ_ QL-y u=,rJ AL,
Pm\< Gam) Lf..cT — WALK PmST W a -t- 1-a ou.e= _Oo,.,.?N____E1/4Ou&N I------
o S•o C.N-T Z&O C +-tea Q zN(T - 5 oS 1_ 1-0. S To "I'N IE. LE F r
w H�I%) ACiT.NEf". Nr,&Ti-►
SITE MUST BE FLAGGED FROM MAIN ROAD AND TEST HOLES MUST BE FLAGGED W7TH TEST HOLE NUMBERS,
— — OFFICIAL USE ONLY BELOW THIS LINE —
UPGRADE/FAILURE SOURCE(for reporting purposes)
❑VOLUNTARY ❑MAINTENANCEIPUMPING ❑BUILDING PERMIT ❑HOME SALE ❑COMPLAINT ['OTHER
INSPECTOR SOIL LOGS ` i COMMENTS;CONDITIONS
9, `I
2 L-N1'
RECORD DRAWING AND INSTALLATION REPORT
SOIL CODES:
V=VERY G=GRAVELLY S=SAND L=LOAM Si=SILT C=CLAY E=EXTREMELY R=ROOTS REOUIR I FOR FINAL APPRDVAL
1 CTOR SIGNATURE DATE APPLICATION EXPIRATION DATE
FOR PUBLIC VIEW ON THE MASON COUNTYy WEBSITE APP e N .PROVED/ SSUED BY DATE
4/tieZ1( ,y_;,..)_3
TH F4 (,),1,.---,---1 _,--7,3
AY BE SCANNED AND AVAILABLERC'ISED 12:7'2015
DESIGN FORM—PAGE ONE Assessor's Parcel Number: 2 2 1 2 1 — 2 1 — 9 0 0 1 1
A design will be reviewed when 3 conies 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 ma be scanned and available for . blic view on the Mason Coun Web site.Maximum ,a,er size: 11 X l7
Permit Number: SWG 2.0,2-3—00 2. iS Designer's Name: Envirotech Engineering PLLC
. Applicant's Name:
Dana Hamar <� Fhoriz (360)275-9374
Mailing Address:
8740 NW HolltE
y Road ,� � ner's Adaiess: PO Box 984
Bremerton WA 98312 I JUL t' "LUt3 Belfair 8 WA 9 528
City State Zi' k Ct State Zi.
Trea . 4nt Device ----
. 0 Glendon Biofilter 0 Sand Filter 0 Mound 0 Sand Lined Drainfield 0 Recirculating Filter,Type:
0 Aerobic Unit Make/Model 0 Disinfection Unit Make/Model Other:
Drainfield Type
['Gravity 0 Pressure Gi'Trench 0 Bed 0 Sub Surface Drip
Septic Tank/Drainfield Specifications Laterals
Number of Bedrooms 3 Schedule!Class ASTM 2729
Daily Flow:Operating Capacity 360 gpd Length 45 ft
Daily Flow: Design Flow 270 gpd Diameter 4 in
Septic Tank Capacity 'c 1200 gal • Number 4
f 10 ft
Receiving Soil Type(1-6) �� 3,4, 5 t Separation
Receiving Soil Appl.Rate ,�.�61 4.68 P Ggpd/—ft2 Orifices
Required Primary Area e ,it' ft2 Total Number of Orifices ""perforated""
• Designed Primary Area 540 ft2 Diameter - in
Designed Reserve Area 540 ft2 Spacing - in
Trench/Bed Width 3 ft Manifold
Trench/Bed Length 180 . ft Schedule./Class -
Elevation Measurements Length - ft
Original Drainfield Area Slope 2-10 % Diameter - in
New Slope, If Altered Not Altered % Preferred manifold configuration used? 0 Yes 0 No
Depth of Excavation Up-slops 24 in Transport Pipe
from Original Grade Down-slope 24-28 in Schedule/Class astm 3034
Designed Vertical Separation 36+ in Length 5+ ft
Gravelless Chambers Required? 0 Yes 0 No 61f Optional Diameter 4 in
Pump Required? 0 Yes 'No Dosing and Pump Chamber
Pump/Siphon Specifications Number of doses/day -
Difference in Elevation Between Pump Shutoff and Uppermost Dose quantity - gal
Orifice - ft Chamber Capacity - gal
Uppermost Orifice 0 Higher 0 Lower than Pump Shutoff Pump controls:Please check those required.
Capacity L Total Pressure Head - gpm ❑Timer ❑Elapse Meter 0 Event Counter
• Calculated Total Pressure Head - ft p.T er: Pump on ,Pump offComments Q V E
AUG 0 4 2023
MA' I COUNTY LNVIRON�IENTAL ryEALTN
JBW
DESIGN FORM—PAGE TWO Assessor's Parcel Number: 2 2 1 2 1 -- 2 1 -- 9 0 0 1 1
Permit Number: SWG
. DESIGN CHECKLISTS .
Scaled Plot Plan Scaled Layout Sketch Cross-Section Sketch
EA Test hole locations 91 Drainfield orientation and layout Reference depth from original grade:
0 Soil logs 0 Trench/bed dimensions and 0 Septic tank
0 Property lines critical distances within layout Di Drainfield cover
O Existingand proposed wells D-BoxNalve box locations
Reference depth from original grade
within 100 ft of property 0 Septic tanklpump chamber and restrictive strata:
0 Measurements to cuts,banks,and locations 0 Laterals,trench/bed.top and
surface water and critical areas 6d Observation port location bottom
O Location and Orientation of 60 Clean-out location 0 Curtain drain collector
curtain drain and all absorption iif Manifold placement 0 Sand augmentation
components 0 Orifice placement Other cross-section detail:
Location and dimension of 0 Lateral placement with distance 0 Observation ports/clean-outs
primary system and reserve area to edge of bed
g Other Information
6/1 Buildings •
0 Audible/visual alarm referenced Yes No
• Direction of'slope indicator El Scale of drawing shown on scale 0 Ef Design staked out
0 Waterlines iii ❑ 0 Recorded Notices attached
fi2j Roads,easements,driveways, P P R ® V E ❑❑ Q(P 0P uaiverlcusrv)atteachedattached
parking mp
6Li North arrow and scale drawing
A AUG 202� Elg Evaluation of failure
shown on scale bar '40 Non-residential justification
MASON COUNTY ENVIRONMENTAL HEALT,+ ❑ 0 Waste strength
J131 ❑ g Flow
DESIGN APPROVAL , ., :.
The undersigned designer must be notified by;installer at time of installation 0 Yes 0 , ` ,v cLxr,E
�- ff n w..cf, ,gp9?
% Mort '.``' E;. �
6/22/23 4 ti
Signature of Designer Date
C7k��IK
The undersigned has reviewed this design on behalf of Mason County Public Health and tcl: ' 45�'tcik/
• compliance with state and local °ripe regulations: f's'S�oN ALO"`"
•
\-...? L1)tktAlq $ C.f . . -3
En), ro tal 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: !-�- 2_7 -az
✓ 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.
Updated Date: 12i7;2015
p>
SCALE 1 INCH• 60 FEET
A 60
{ PROPERTY LINE
I 355 FT ±
L.
PROPOSED PRIMARY AND
{ N RESERVE SEPTIC 30 FT
{ DRAINFIELD AREA (SEE
N{ DRAINFIELD DETAILS)
N DISTRIBUTION BOX T T T to r.±
{ N 4' ASTM 3034 R T P1
OR BETTER SOLID I I _I
{ { N TRANSPORT PIPE P2
FROM SEPTIC TANKN
-
{ { L WATER
LINES PROPOSED 1200
in TO BE GAL SEPTIC TANK 10FT MIN
{ o .WITHIN 10 FT OF Nr `{ SEWER LINES N PROPOSED I
•
{ 4 BD
£ I BUILDING CLEANOUT
-13 PROPOSED DRIVEWAY
f FOOTPRINT
^
{ {
{ { L
Fi
{ EXISTING EASEMENT LINE
I WATER -N)
—\
{ WELLS
I
L
100 FT WELL RADIUS
CENTER NE RD
.• 378FTt APPROVED
SOIL LOGS AUG 0 4 2023
• TP1 0-26' SILT LOAM, TYPE 5
26'-60' GRAVELLY MEDIUM SAND, TYPE 3 MASON COUNTY ENVIRONMENTAL HEALTH
60'-72' GRAVELLY FINE SAND, TYPE 4
TP2 0-68' SANDY LOAM, TYPE 4 PROJECT/ OVNER/ LOCATION.
68'-86' VERY GRAVELLY MEDIUM SAND, TYPE 3
SEPTIC SYSTEM DESIGN
C LY DE
1�� 4p DANA HAMAR
`, QF til`l�yl.�. 9T LOT 1, ❑LYVIEW PLACE
,C �C' j. C Z PARCEL NO. 22121 21 90011
• 21 MASON COUNTY, WASHINGTON
NOTES, ,f # 7/`
DESIGNER,
1) THERE ARE NO CRITICAL CUTS, EMBANKMENTS, .� ENVIROTECH ENGINEERING
OR CRITICAL SLOPES WITHIN 300 FEET OF THE d' 43045 «, PO BOX 984
PROPERTY LINES. r�� 'EC15TE,-" �� BELFAIR, WASHINGTON 98528
2) THERE ARE NO SURFACE WATERS WITHIN 300 S „., 360 275 9374
FEET OF THE PROPERTY LINES. S jD'�,�L� v cz<g z.
PLOT PLAN
C C A
A z
GlW A.m. AGt
N
` j+ a? a2
' SD G f��t= mD
T 1 m mi
O 0 O `r r N
v D m m C
m t^ r— V-..--: CI
I o I I I Ar 2 . to
N ❑ IN N N m
N" I PI 0
mA7 I
+ 1 7c
71
•
•
x.
iai ` mr •�•: : . oI m . . ,• i . D
N• Z H — N C W .� �• .o I Om m I73 \ 0'Z'2 2.•.....
i I ,F.1 x I X 1.' I \ > r) —
•
• 4
:':C •• • •• •
. R r tom 1-0
„, _ \k
1.3
•
•
•
.,•• • .,Izm'6 I Am DI' I ox A At• iot-•''-..,.. ` as m_ '-'m x p m —9 rr O.
r ' u -i e _mm o e ^ NaAZ m7 --r D 7 nil`zD I \ — Or - �mClS I I Ay • m q Aj -� p'1rn 7 W ri 0) m m Ir _y I D
CO
_71 il
_ + Z --I'� m
\ I m+ I �A 0
m
mo r cis
1 A' CI
m
o
a MI
73
o Z<
I o < I �I m
a
z j
IO A I I I 0-4
x a=
17 A
m
p C O D
Z12 All
N m
r A ,�
'Or
.
0 6. C
o
cl z D
o D lL �
rn
A_cam
1m,^ ;
a •Z 'N
r 71
A Z =pGDtom o❑ rNCto.
�� zA crrz
DZ CO NAAA P P R p CI
ma� E JN "M.
0❑ D� e
2ma
73
ri
o
NA r"A� AUG 0 4 2023 J _ " DNo MASON COUNTY ENVIRONMENTAL t7 ' .''��rH - :I,. 1.•JBW _
-ocrvE�r z 0 *::•ir •• ..
0p7.tovm to svra v zg�ma.�. —- rm ••��•� �� •
brpG N NA�Z a 1Cm•-7 ri~z .4 73 —- Nt7 1�.••�1 :1.:7,'., r
JDOQ cQ Zm;-- en
a N m �n.<Om 0-0_r7 ON 7_ = :.•:.,0 i.
t7 U -1 m n r'o D f'l 7^a -~I > — t••••• •j•', ate".. ;'
•
1D-1 vaax z�<A ram-. Oda f�i �CZr N �r. = t.,:.!o .� ..','...�:��,' H# A
+,N m Irv.. C7 L �> ti�� r �„77.�v Cil= d ^ ••,ail• t•-':;.,', ' 1 d
rl z �ru£ A y^� �O 'f �=A='�°r < _ i:•t. �•i :�tie:,`,71 N' co
fT1 N z8 3 0a Zr�� ,�`,Y ���tirZ ��• .� ��..'•': '.-±`' y� 71
co
[[�..\��1 = -in N N u Z
Z 4 in
rr,t as
+ p
m-t O
• ❑m t72 4 cm
Cm a
7
N !-- Z
A r1r 1 fl P1
N
P1213m o'U N
Cf tin ,
m DnD DID
or rr
r-D D y O D
Z
im In,
d=cc O D
D D A A D
x c�r 3 m Z r,-v,"'I fn
m mCO z M..< •z�m Am
aM ,-43D
• P �..1 fi722 rCly a1 C1
<=z mr d-= Arma m ,I1I
rw D C
.r.rr1 mr "2( 12 3Kr'rI. z C <r-i Ams�. ��
CI�1 a mey ADO
I-in ra
m Dl7 Z3
rro -Z
-iy'ro 22
= me
9Zz
D S
LNI
m t70 2q _ 'f
r) D r 2
D Cf m y
r -I -I x
rn
ci
A C m A
o < Z C
.C. H CO Z p m
A x .. �r ,
\\\*1-1
z 9 r mi
2 n m
-I 2
m
Y Cr)
-I H
o H
8 - J _
> > -
ey t
IV 0
> DC E l a x
m�
P PR
m-a r) a
m N
l \\\ N
N u
H 2
N -I
L��� Mks:, ` D
r
S
!� AY fi r �o,.7w n d==
-,z t l f y " r
Q�
NN
"- i m W+
�C m to
� 4 .a�i y -I�I
I-
r
w r a m m m
• 32xo -II —
I
Nit
AIDE 'o
",z,
m
Off.MI P102 P DSOD A OD,Zb1d
<_. r
0 D N N (+`7
(/) V DXO 2 r^2 rrir C7 r�IA
�I cri AOD n CO<D - �0�
CJDA2 z• <A H p
+� _rn �c Z Z GI A-i 2f z
Z 2
z.m m-1 ,7C ro zo 0APPROVE
co Z N AUG 20?3 1 ;
D. v CQNNT V ENVIRp ;.
•
r ci Je Mf N"L HEALTH
o ^ z
NOTES FOR qN-SITE SEWAGE GRAVITY DISTRIBUTI❑N SYSTEM
SEPTIC TANK
1. PUMP AND PUMP CHAMBER IS NOT EXPECTED FOR THIS SITE IF EFFLUENT PUMPING IS REQUIRED, THEN ALL PUMP CHAMBER
COMPONENTS AND ACCESSORIES RELATING TO EFFLUENT PUMPING MUST BE INSTALLED PER WASHINGTON STATE AND/ OR
PREVAILING COUNTY REQUIREMENTS.
2. SEPTIC TANK SHALL ADHERE TO THE GENERAL SEPTIC TANK DETAILS IF THIS DESIGN, AND SPECIFIC REQUIREMENTS OF
THE PREVAILING HEALTH OFFICIAL.
TRENCH
1. EXCAVATE TRENCHES ALONG THE CONTOUR OF THE EXISTING GRADE.
2. TRENCHES SHALL BE EXCAVATED SO THAT THE TRENCH BUTTON IS LEVEL, ±0.5 INCHES.
3 INSTALL OBSERVATION PORTS AS SHOWN IN THE DRAINFIELD DETAILS.
4. THE BOTTOM AND SIDES OF ALL TRENCHES MUST NOT BE SMEARED. INSTALL DRAINFIELD DURING DRY WEATHER.
ANY SOIL SMEARING MUST BE REMOVED WITH HAND TOOLS.
DRAINFIELD LATERALS AND TRANSPORT LIMES
1. INSTALL LATERALS PARALLEL TO THE NATURAL GROUND CONTOUR.
2. PLACE LOCATOR TAPE,ABOVE ALL LATERALS.
a INSTALL CLEAN-OUT PORTS AT ALL DISTAL ENDS OF THE DRAINFIELD. SEE THE DRAINFIELD DETAILS.
4. TRANSPORT LINES BENEATH DRIVEWAYS OR OTHER TRAVELLED WAYS SHALL BE ENCASED.
FILTER FABRIC
1. PLACE FILTER FABRIC OVER DRAIN ROCK PRIOR TO BACKFILL.
2. FILTER FABRIC SHALL CONFORM TO THE FOLLOWING SPECIFICATIONS, AND AT LEAST MEET WASHINGTON STATE AND/ OR COUNTY STANDARDS.
PROPERTY REQUIREMENT TEST METHOD
GRAB STRENGTH 80 LBS ASTM D4632
PUNCTURE STRENGTH 25 LBS ASTM D4833
TRAPEZOID TEAR 25 LBS ASTM D4533
APPARENT OPENING ACE ( 0297 rn, OR *50 US STANDARD SIEVE ASTM D4751
SIZE > *50 US STANDARD SEIVE
PERMEABILITY 0.4 CM/SEC FOR SOIL TYPES 1 AND 2 ASTM D4491
0.004 CM/SEC FOR SOIL TYPES 2, 3, 4, 5 AND 6
DISTRIBUTION BOX
L ALL OUTLETS SHALL BE UNOBSTRUCTED AND VIEWABLE \WITHIN THE DISTRIBUTION BOX.
• a FOR INSTANCES WHEN THE OUTLET IS LOCATED DIRECTLY ACROSS FROM THE INLET, THE INLET MUST BE DIVERTED DOWNWARD
• IN ORDER TO PREVENT SHORT-CIRCUTING EFFLUENT ACROSS THE DISTRIBUTION BOX.
3. PLACE LOCATOR TAPE, OR EQUIVALENT, DIRECTLY ABOVE THE DISTRIBUTION BOX.
INSPECTION AND MAINTENANCE
L ON-SITE SEWAGE SYSTEM SHALL BE PUMPED OR INSPECTED EVERY 3 YEARS.
2. THE EFFLUENT FILTER SHALL BE CLEANED ONCE PER YEAR. THE USE CV GARBAGE DISPOSALS SHALL WARRANT MORE FREQUENT
CLEANING.
MISCELLANEOUS
I. ENCASE ALL WATER LINES WITHIN 10 FEET OF SEPTIC AND DRAINFIELD AREAS.
2 STORMWATER RUNOFF SHALL BE DIVERTED AWAY FROM THE SEPTIC AND DRAINFIELD SYSTEM.
3. CURTAIN DRAINS SHALL NOT BE PERMITTED \WITHIN 10 FEET UPSLOPE AND 30 FEET DOWNSLOPE FROM THE EDGE OF THE DRAINFIELD
AND DRAINFIELD RESERVE AREA.
4. ALL MANHOLE LIDS AND PORTS FOR ACCESS, SAMPLING OR INSPECTION MUST HAVE LOCKING COVERS.
5. INSTALL ALL TANKS, CHAMBERS AND BOXES ON FIRM, INDISTURBED NATIVE SOIL OR RE-COMPACTED NATIVE OR FILL SOILS.
6. A SURVEY WAS NOT PERFORMED BY THE SEPTIC DESIGNER. IT IS THE OWNER/ CONTRACTORS' RESPONSIBILITY TO LOCATE ALL PROPERTY
LINES, AND CONSTRUCT THE SEPTIC SYSTEM BEYOND PROPERTY LINE, WATER LINES, WELLS AND BUILDING MINIMUM SETBACKS THAT ARE
REQUIRED IN WASHINGTON STATE AND/ OR COUNTY REQUIREMENTS.
7. ALL SEPTIC SYSTEM COMPONENTS, MATERIALS AND WORKMANSHIP MUST MEET OR EXCEED WASHINGTON STATE AND/ OR COUNTY REQUIREMENTS.
8. DEVIATION FROM THIS DESIGN \WITHOUT PRIOR WRITTEN APPROVAL FROM THE SEPTIC DESIGNER AND THE COUNTY HEALTH DEPARTMENT WILL
INVALIDATE THIS ON-SITE SEWAGE DESIGN SYSTEM.
9. SOIL CONDITIONS MAY BE DIFFERENT, SUCH AS DIFFERING VERTICAL SEPARATIONS OR CHANGE IN SOIL TEXTURE, WITHIN THE SUBGRADE
IMMEDIATELY SURROUNDING THE EXCAVATED TEST PITS. THIS COULD EFFECT THE
DESIGN AND OPERATION OF THE ON-SITE SEWAGE SYSTEM. ENVIROTECH SHOULD BE NOTIFIED TO RE-EVALUATE THIS DESIGN, IF SIGNIFICANT
SOIL CHANGES OCCUR.
PPROVE
DESIGN SOIL. 45X TYPE 3
50% TYPE 4 0 4 2023
5Y.. TYPE5 mAsofv -
WEIGHTED APPLICATION RATE �'OtJ`V 1 ENV/RONIl9ENT PROJECT/ OWNER/ LOCATION.0.Q5(D.4G/SF/D>+0.5(0.6G/SF/D)+0.45(0.8G/SF/D) = 0.68, Jey hE4LThi
• DESIGN FLOW SEPTIC SYSTEM DESIGN
ASSUME 120 aVbedroon/da I CRITERIA. 3 BEDROOMS DATA HAMAR
g Y CLYD LOT 1, OLYVIEW PLACE
(120ga0(3 bedrooms) = 360 gpd E� f
aP W.\ 9 PARCEL NO. 22121 21 90011
DRAINFIELD AREA 'TEeF h!L, y MASON COUNTY, VASHINGTON
•
A = (DESIGN FLOW/ APPLICATION RATE) ." DESIGNER.
= (360 gpd/ 0.68 (gpd/ft)^2) = 529.4 se (USE 540 sf) ENVIROTECH ENGINEERING
FOR 3 FT VIDE TRENCH. (5403f/ 3ft> = 180 LINEAR FEET a $' BE BOX 984
4300
BE BOX
WASHINGTON 98528
FIR 4 LATERALSJ <180 if/ 4 laterals) = 45 FT PER LATERA d��e K.TSg pt� 360-275-9374
4's101VA.1 Bahl DESIGN NOTES