HomeMy WebLinkAboutBLD2026-00260 - BLD CD Environmental Health Review - 4/7/2026 1 as - 3�k• c 0c c tc jj3caLc -
04/02/2026 a�'aCoO
APPROVED EASEMENT/FRONT
ADV202600031- FRONT 1 MIN FROM All setbacks are measured from the furthest
MASON COUNTY DCD PLANNING EASEME SETBACK
seorrPZu�yaiep u3 projection of the building.
\ S EXISTING 4 BDRM RES
Ni N\\ O EXISTING SHOP!GARAGE
EH APPROVED
L_. O3 WELL EXISTING DRIVE
,SCALE-1 1,=60 -0" �% ; \\ WELL O4 EXISTING SEPTIC TANK(PER 1976 PERMIT/INSTALLATION)FAILED(ABANDON PER CODE) Rhonda Thompson 04/07/2026
5O EXISTING D.F.(FAILED DUE TO AGE)-ABANDON
\'I NOTES:
\
\ O PROPOSED 3 BDRM ADU(ADU NOT INSTALLED YET-UNDER SEPARATE PERMIT) RESTRICTIVE LAYER BELOW 48'
r \ O7 DRIVE -FIVE TIMES RULE MET
\ -NO WELLS WITHIN 100'OF DRAINFIELD
\\ ft 8 ADU CLEANOUT/SEPTIC TANK!PUMP CHAMBER -ELAPSE TIME METER AND EVENT COUNTER REQUIRED
\ RISERS TO SURFACE REQUIRED OVER ALL TANK LIDS
\ Og EXISTING STUBOUT/CLEANOUT FOR PRIMARY RES(IE.-88.0)
Water NN\ 10 PROPOSED 1200GAL.SEPTIC TANK(IN.EL.-875/OUT EL.-87.2) SOIL LOGS
RBM IS GROUND EL.@ SHOP C RNER(RBM=100. ) \\ 11 PROPOSED 1200GAL.PUMP CHAMBER(PUMP EL.-84.0) 1) LOAMY MED.SAND 0 26"
7 _ 12 900F2 DRIP DRAINFIELD(25FTX36FT)-4 LATERALS-15OFT EACH(IE.-107.5) VERY GRAVELLY LOAMY MED SAND 26-54"
\N\ \\ � `, •1 2) SANDY LOAM 0-36"
13 900FT2 DRIP R/A
\ j •, /� MEDIUM SAND WITH FAINT MOTTLING 36"+
5 \ \
\ 3) SANDY LOAM 0-36"
\
\ MEDIUM SAND WITH FAINT MOTTLING 36"+
N '•I \ � 2 . \ 4) SANDY LOAM 0-30"
\
i
cP o \
BLD2026-00260 VERY GRAVELLY MEDIUM SAND 30-48"
u: � � li N 5) LOAMY MED SAND 0-30"
i v \
\ VERY GRAVELLY MEDIUM SAND 30-48"
O� I \\ EH Setbacks TANK DETAIL-NO SCALE
12 ADU DRIP DRAINFIELD D
1'' \ \ \.; \\ A.) Drainfield/Reserve requires 10 setback from footing/foundations
\ \ B.)Septic tank(s)requires 5'setback from all footing/foundations
\ C.)No foundation/Perimeter Drains within 30ft,downgradient of
115 120 \ Drainfield/Reserve area
125 D.)No Cut Bank(s)(greater than 5ft and over 45 degrees)within
50ft,down gradient of Drainfield/Reserve area
i' E.)Use approved mitigation from section C1-9 of the department of
ecology's"Criteria For Sewage Works Design,"when sewer
transport lines are within 1 Oft of water supply lines.
II SEE DETAIL \
AA
;• \ \ u 1 0' 02/24/26
�
Front Yard Setback. 25'. HEADWORKS(SEE DETAIL PG 2) �tio J J ' n"
ADALI J.IIUNTCR _
Side & Rear Yard Setbacks. Residential dwell
PUMP CHAMBER(�YPICAL�
and accessory structures is 20'. ( / 9
//
OR 10% width of lot if not more than 100' wide 11
THIS IS NOT A SURVEY:
OR approved ADV SITE FEATURES,TOPOGRAPHY,ELEVATIONS AND BENCHMARKS ARE BASED ON ASSUMED DATUM
/ PROVIDED BY THE OWENER AND COUNTY PLANNING RECORDS AND ARE INTENDED ONLY FOR THE
2 REVIEW AND CONSTRUCTION OF THE PROPOSED SEPTIC SYSTEM DESIGN.JIM HUNTER&ASSOCIATES
RECOMMENDS THAT A LICENSED PROFESSIONAL LAND SURVEYOR ALWAYS BE USED TO SET CORNER,
ESTABLISH LOT LINES,DETERMINE ELEVATIONS AND TOPOGRAPHY AND/OR PROVIDE A LEGAL SITE PLAN.
NAVD88 IS UNKNOWN
12 CONDUCTED TOPOGRAPHIC ANALYSIS OF SITE,DETERMINED TRENCH DEPTH IS SUITABLE GIVEN SITE CONDITIONS.
A FEE MAY BE CHARGED AFTER INSTALLATION FOR FINAL INSPECTION&RECORD DRAWING
\ HWY 302 TO A LEFT ON QUAIL HILL JIM HUNTER AND ASSOCIATES
220'-1"SCH40 SUPPLY/RETURN LI ES TO SITE ON THE RIGHT. P.O.BOX 162,OLY,WA 98507 753-1226 JH SOASSDCIATESQHDTMAILCDM
F DESIGNER-ADAM HUNTER
SEPTIC SYSTEM DESIGN FOR-
13
Disclaimer: Mason County does not re uire a , \,,\ ' ", q,�N MIKE YOUNG
\ w I44 SITEADDR-
survey to obtain a building permit. Asa `result, Site \ N 90EQUAILHILLRD(PRIMARYRES)
36' LEGAL- 1 OF 2
plans may not reflect accurate data. It i ''tk� 5
SCALE-1"=60'-0 TP# 122093490090 SITES
applicant's responsibility to comply with setback
requirements.