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BOXES DRAINING GRAVEL
NW 1/4 SECTION 17, TOWNSHIP 23 N, RANGE 5 W, W.M.
BA SSA NO MUL TI=FA MIL Y
NOTES:
1. ALL DOUBLE CHECK VALVE ASSEMBLIES (DCVA's) MUST BE LISTED ON LATEST LIST OF "BACKFLOW PREVENTION
ASSEMBLIES APPROVED FOR INSTALLATION IN WASHINGTON STATE", PUBLISHED BY STATE OF WASHINGTON
DEPARTMENT OF HEALTH.
2. THE OWNER/APPLICANT MUST OBTAIN A SEPARATE CITY OF RENTON PLUMBING PERMIT FOR THE INSPECTION
OF THE INSTALLATION OF THE DCVA AND PIPING. THE OWNER SHALL FURNISH, INSTALL AND MAINTAIN THE
DCVA AND ALL PIPING AND APPURTENANCES SHOWN ON THIS PLAN.
3. THE DCVA MUST BE TESTED BY A STATE CERTIFIED BACKFLOW ASSEMBLY TESTER AFTER ITS INITIAL
INSTALLATION, AFTER REPAIRS AND ANNUALLY THEREAFTER AT OWNER'S EXPENSE. A COPY OF THE TEST
REPORT SHALL BE SENT OR FAXED TO CITY OF RENTON WATER UTILITY ENGINEERING DEPT., ATTN: WATER
UTILITY CROSS —CONNECTION CONTROL SPECIALIST, FAX NO. 425-430-7241.
4. DCVA AND METER BOX SHALL BE LOCATED ON PRIVATE PROPERTY AND AS NEAR AS POSSIBLE TO THE
WATER METER.
Y
34" TO 2" DOUBLE CHECK VALVE STD. PLAN - 340.8
+ e PUBLIC WORKS ASSEMBLY FOR IRRIGATION OR
- DEPARTMENT RESIDENTIAL FIRE SPRINKLER
N�o MARCH 2O10
AS -BUILT
NO AS -BOIL T INFORMA 71ON ON THIS SHEET.
I/ CER7IFY THAT 7HE /NFORMA77ON SHOWN HEREON WHICH WAS
AS -BUILT BY D.R. STRONG, AND MAY INCLUDE LOCATIONS,
ELEVATIONS, DEPTHS, PIPE SIZES, AND AS -BUILT COMMENTS,
ACCURATELY REFLECTB EXIS77NG FIELD COND177ONS AS DETERMINED BY
ME OR UNDER MY DIRECT SUPERVISION ON THIS DATE: 912412025.
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Call 2 Working Days Before You Dig
811
Utilities Underground Location Center
(ID,MT,ND,OR,WA)
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NOTES:
1.
WHERE PIV IS LOCATED INSIDE THE VAULT, THE VAULT LID SHALL BE CORE DRILLED WITH LINK SEAL OR GROUT TO SEAL THE PIPE
PENETRATION. ALTERNATIVE
PIV LOCATION SHALL BE APPROVED BY THE FIRE MARSHAL.
2.
MINIMUM CLEARANCE OF 6" SHALL BE MAINTAINED BETWEEN VALVES, FITTINGS, AND VAULT WALL.
3.
ALL PIPE JOINTS SHALL BE
RESTRAINED AND CONCRETE BLOCKING IS REQUIRED AT CHANGES IN DIRECTION.
4.
CORE DRILL (O.D. +2") CONCRETE
VAULT IF KNOCK -OUTS ARE NOT PROVIDED.
MATERIALS
OA
BACKFLOW ASSEMBLY
DCDA PER STD PLAN 350.3, POSITIONED WITHIN ACCESS HATCH TO ALLOW FOR VERTICAL REMOVAL
OB
PIPE
CLASS 53 DI PIPE (PExFL OR FLxFL)
OC
POST INDICATOR VALVE
PIV BETWEEN LAST VALVE ON BACKFLOW ASSEMBLY AND FDC, IN ONE OF TWO POSITIONS SHOWN
OD
TEE
TEE (FLxFL)
OE
ADAPTER
ADAPTER (FLxMJ)
OF
BEND
90° BEND (FLxFL)
OG
VALVE
CHECK VALVE (FLxFL)
OFIRE
DEPARTMENT
FDC PER RRFA REQUIREMENTS, LOCATED DOWNSTREAM OF BACKFLOW ASSEMBLY, INSTALLED ON THE SIDE
CONNECTION
OF THE VAULT WITH THE LARGEST AVAILABLE SPACE AS SHOWN
OI
CONCRETE VAULT
OLDCASTLE PRECAST VAULT OR EQUAL, SIZED TO ACCOMMODATE FDC, PIV, AND CHECK VALVE INSIDE THE
VAULT AND MAINTAIN REQUIRED MINIMUM CLEARANCES
TWO LOCKING HINGED ALUMINUM DOORS, TRAFFIC -RATED, WITH SLIP RESISTANT TREATMENT, MARKED
JD
ACCESS HATCH
"WATER", LW PRODUCTS OR EQUAL
OK
LADDER
GALVANIZED STEEL LADDER SECURED TO VAULT PER STD PLAN 370.5
OL
WALL FLANGE
MIDSPAN PIPE RESTRAINT WITH CONCRETE BLOCKING PER STD PLAN 370.4, SEAL PIPE PENETRATIONS WITH
WATER -TIGHT GROUT
OM
PIPE PENETRATION
SEAL PIPE PENETRATION WITH WATER -TIGHT GROUT
FLOOR DRAIN, MINIMUM 6" PVC, SLOPED TO STORM SEWER OR DAYLIGHT TO DRAINAGE DITCH WITH WIRE
ON
DRAIN
MESH RODENT SCREEN AT DRAIN OUTLET, SEAL PIPE PENETRATION WITH WATER -TIGHT GROUT
OO
BLOCKING
CONCRETE BLOCKING PER STD PLAN 330.1
FDC AND CHECK VALVE
PUBLIC WORKS 0 DEPARTMENT ROUTED THROUGH
BACKFLOW ASSEMBLY VAULT
2 CITY COMMENTS 7.3.24
D.R. STRONG 3 CITY COMMENTS 9.10.24
CONSUL TING ENGINEERS 4 STORM REVISION DUE TO DUCT BANK CONFLICT
ENGINEERS PLANNERS SURVEYORS 5 UTILITY REVISION
6 UTILITY REVISION
620 - 7th AVENUE KIRKLAND, WA 98033
0425.8273063 F 425.827.2423 N 0. REVISION
YLP
08.23.241
YLP
SURVEYED:
DJC
YLP
09.19.24
YLP
DESIGNED:
YLP
YLP
12.13.24
YLP
YLP
01.10.25
YLP
DRAWN:
GLB
YLP
01.24.25
YLP
CHECKED:
YLP
BY
DATE
APPR
APPROVE
STD. PLAN - 370.3
, Pastu,,h.
Works Administrator
SCALE:
OA WALL FLANGE
OB BLOCKING
OC PIPE PENETRATION
IJ GRAVEL
DRnGII I:
24"
MIN
MIDSPAN PIPE RESTRAINT, EBAA IRON SERIES 110OSDB MEGALUG OR EQUAL, WRAP WITH POLYETHYLENE
ENCASEMENT PRIOR TO PLACEMENT OF CONCRETE BLOCKING
CONCRETE THRUST BLOCKING, CAST -IN -PLACE CONCRETE (MINIMUM 3,000 PSI), TO BE SIZED BY DESIGN
ENGINEER (MINIMUM 24"x24"x6")
CORE DRILL (O.D. +2") VAULT IF KNOCKOUTS ARE NOT PROVIDED, SEAL PIPE PENETRATION WITH
WATER -TIGHT GROUT
FOUNDATION GRAVEL PER WSDOT STANDARD SPECIFICATIONS, 12" MINIMUM ALL DIRECTIONS
•. PUBLIC WORKS CONCRETE BLOCKING
8/2023 DEPARTMENT ADJACENT TO VAULT
DATE
VERTICAL: NAVD 1988
AS NOTED HORIZONTAL: NAD 1983/1991
ONE INCH DATUM
AT FULL SCALE DATUM
IF NOT ONE INCH
SCALE ACCORDINGLY
STD. PLAN - 370.4
DATE
W-417608
R-417615
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
Avftk BASSANO MULTI -FAMILY DATE:11.20.20
pj�
C TY OF STANDARD WATER DETAILS AND NOTES
FIELDBOOK:
RENTON PAGE:
DRAWING NO:
Planning/Building/Public Works Dept. 117 WELLS AVENUE S C 15
RENTON, WASHINGTON 98057 SHEET: OF:
15 20
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DRS PROJECT NO. 20070