HomeMy WebLinkAboutBLD2026-00405 - BLD CD Environmental Health Review - 8/17/2026 A
SCALD 1 INCH = 40 FEET
0 5 10 20 40
PROPOSED ECOLOGY BLOCK WALL.
SEE DETAILS,
PROPERTY LINE
EXISTING DRIVEWAY
c,J �3F EXISTING DRAINFIELD
EXISTING SEPTIC TANK
SEPTIC RESERVE AREA
A
OIT
EXISTING HOUSE �i a
/"
EH APPROVED
Rhonda Thompson 08/17/2026
EH Setbacks
A.) Drainfield/Reserve requires 10' setback from footing/foundations CLYD PROJECT/ OWNER/ LOCATION,
Septic tank(s) requires 5' setback from all footing/foundations
PAGAC RETAINING WALL
B.
P q 9 DESIGN
C.) No foundation/Perimeter Drains within 30ft, downgradient of PAGAC
Drainfield/Reserve area 51 NE ALLEN COURT
No Cut Bank(s) (greater than 5ft and over 45 degrees)within PARCEL 22336-53-00047
D.
g ) MASON COUNTY WASHINGTON
50ft, down gradient of Drainfield/Reserve area r 43O45 ENGINEER:
E.) Use approved mitigation from section C1-9 of the department of :r�, -�ts-rea� \r' ENVIROTECH ENGINEERING
ecology's "Criteria For Sewage Works Design," when sewer
PSS,ONALF'''u BO FA ROX 9 84
EL WASHINGTON 98528
transport lines are within 1 Oft of water supply lines. 360-275-9374
s/lo/26 SITE PLAN - SH 1 OF 3
2'X2'X4' MIN
CONCRETE
MODULAR BLOCK
WITH
INTERLOCKING
COMPONENTS LEVEL BACKFILL
e a.
m. .. 4
a < 4
NATIVE
° e e SANDY
° ° S❑ILS
a
°e 4
IIMlIMl
C❑MPACTED 6" LEVELING
COARSE OVER UNYILDING,
UNDISTURBED SUBGRADE
6FT MAX MODULAR BLOCK WALL
G CLYbE PROJECT/ OWNER/ LOCATION
NOT TO SCALE � `LYD s� PAGAC RETAINING WALL
DESIGN
PAGAC
� 51 NE ALLEN COURT
PARCEL 22336-53-00047
MASON COUNTY WASHINGTON
4O45 r ENGINEER:
Q. ( -V ENVIROTECH ENGINEERING
�Sq�t BE BOX 984
BELFAIR, WASHINGTON 98528
360-275-9374
6/26/26 DETAILS - SH 2 OF 3
N❑TES:
1, BL❑CKS SHALL BE MIN SIZE AS SH❑WN,
EXCEPT 2 BL❑CKS MAY BE USED WHERE
NECESSARY ❑N T❑P ❑F WALL AND ENDS, 4
INTERL❑CKING C❑MP❑NENTS REQUIRED.
2. LEVEL BACKFILL BEHIND WALL IS REQUIRED
AS SH❑WN,
3. ALL W❑RK SHALL C❑MPLY WITH APPR❑PRIATE
IBC, STATE AND L❑CAL C❑DES INCLUDING
SAFETY FENCING AS NECESSARY.
4. DAMAGED BL❑CKS SHALL N❑T BE USED.
ASSEMBLY ❑F M❑DULAR BL❑CK SYSTEM SHALL
BE IN ACC❑RDANCE WITH THE
MANUFACTURER'S REC❑MMENDATI❑NS.
5. BACKFILL SH❑ULD BE C❑MPACTED AS T❑ N❑T
DISL❑DGE BL❑CKS.
6. BASE LEVELING C❑URSE SH❑ULD BE USED
AND SHALL N❑T EXCEED 6 INCHES IN DEPTH,
AND BE C❑MPACTED WITH HEAVY
C❑NSTRUCTI❑N EQUIPMENT.
7. VEHICLES SHALL BE N❑T CL❑SER THAN 10
FEET FR❑M EDGE ❑F WALL WITHIN THE
BACKFILL,
8. DRAINAGE ❑UTLETS ❑R INFILTRATI❑N
FACILITIES ARE N❑T PERMITTED WITHIN AT
LEAST 15 FEET BEHIND THE RETAINING WALL.
9. ALL MATERIALS, QUANTITIES, AND L❑CATI❑NS
SHALL BE VERIFIED BY THE ❑WNER/
C❑NTRACT❑R PRI❑R T❑ C❑NSTRUCTI❑N.
PR❑P❑SED WALL MUST BE STAKED ❑UT AND
UTILITIES L❑CATED PRI❑R T❑ C❑NSTRUCTI❑N.
ANY DISCREPENCIES SHALL BE REP❑RTED T❑
THE ENGINEER PRI❑R T❑ C❑NSTRUCTI❑N.
a�L C LYO,F.ST
PROJECT/ OWNER/ LOCATION:
PAGAC RETAINING WALL
DESIGN
6/26/26 PAGAC
51 NE ALLEN COURT
PARCEL 22336-53-00047
MASON COUNTY WASHINGTON
ENGINEER:
ENVIROTECH ENGINEERING
PO BOX 984
BELFAIR, WASHINGTON 98528
360-275-9374
DETAILS & N❑TES- SH 3 ❑F 3