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12 Working Days Before You Dig
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lea Underground Location Center
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OUTLET
' SUMP
F_=LY �.0 OUTLET A
INLET ,
STORMFILTER DESIGN NOTES
STORMFILTER TREATNIENTCAPACITY IS A FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OF CARTRIDGES. THE STANDARD MANHOLE
STYLE IS SHOWN WITH THE MAXIMUM NUMBER OF CARTRIDGES (7). VOLUME SYSTEM IS ALSO AVAILABLE WITH MAXIMUM 7 CARTRIDGES.
072" MANHOLE STORMFILTER PEAK HYDRAULIC CAPACITY IS 1.5 CFS. 10 THE SITE CONDITIONS EXCEED 1.5 CFS AN UPSTREAM BYPASS STRUCTURE IS
REQUIRED. ,
CARTRIDGE SELECTION ,
CARTRIDGE HEIGHT
27"
18"
LOW DROP
RECOMMENDED HYDRAULIC DROP (H)
SPECIFIC FLOW RATE (gpm/sf)
2 9Pm
m/ft'
2 9PT
m/ft2
2 gpm/ftz
1 gpm/ft'
CARTRIDGE FLOW RATE (gpm)
22.5
1 11.2
15
1 7.5
10
5
r 4
O O l.1„
00.
.� 60" 1.D. MANHOLE
TRUCTURE
TOP SLAB ACCESS
SEE FRAME AND
PLAN
"
VIEW 72 O,D.
COVER DETAIL
STANDARD OUTLET RISER
FLOWKI T.•
41A
-340 n
CONTRACTOR TO GROUT
Q
TO FINISHED GRATE
GRADE RING/RISERS
,.;.._..:
,3
_ ...,
FRAME AND COVER
STEPS
FLOATABLES
(DIAMETER VARIES)
A.
BAFFLE
N. T, S
SITE SPECIFIC
DATA REQUIREMENTS
STRUCTURE ID
CB 13
WATER QUALITY FLOW RATE (cfs)
0.045
PEAK FLOW RATE (cfs)
0.608
RETURN PERIOD OF PEAK FLOW (m)
100
# OF CARTRIDGES REQUIRED
4
CARTRIDGE FLOW RATE
5
MEDIA TYPE (CSF, PERLITE, ZPG, GAC; PHS)
ZPG
PIPE DATA:
I.E.
MATERIAL
DIAMETER
INLET PIPE #1
9. 1 i 349.57
LCPE
181.
INLET PIPE #2
NIA
NIA
N/A
OUTLET PIPE
. 347.77
LCPE
181.
RIM ELEVATION 460-44359.40
ANTI -FLOTATION BALLAST
WIDTH
THEIGHT
NIA
N/A
NOTESISPECIAL REQUIREMENTS:
" PER ENGINEER OF RECORD
INLET PIPE
INSIDE HEIGHT
L ...... _. m ._.. 6' TYPICAL GENERAL NOTES
1. CONTECH TO PROVIDE ALL MATERIALS UNLESS NOTED OTHERWISE.
2. DIMENSIONS MARKED WITH O ARE REFERENCE DIMENSIONS. ACTUAL DIMENSIONS MAY VARY,
FILTER _ HYDRAULIC DROP 3. FOR SITE SPECIFIC DRAWINGS WITH DETAILED VAULT DIMENSIONS AND WEIGHTS, PLEASE CONTACT YOUR CONTECH ENGINEERED SOLUTIONS
LLC REPRESENTATIVE. www.contechES.com
CARTRIDGE
O INLET INV. ON CONTAINED THIS
.4.'STORMFILTER WATER QUALITY STRUCTURE SHALL BE IN ACCORDANCE WITH ALL DESIGN DATA AND INFORM
TO OUTLET INV. DRAWING: .
5. STRUCTURE SHALL MEET AASHTO HS20 LOAD RATING, ASSUMING EARTH COVER OF 0' - 5' AND GROUNDWATER ELEVATION AT, OR BELOW, THE '
a: OUTLET PIPE INVERT ELEVATION. ENGINEER OF RECORD TO CONFIRM ACTUAL GROUNDWATER ELEVATION. CASTINGS SHALL MEETAASHTO .
M306 AND BE CAST WITH THE CONTECH LOGO.
6. FILTER CARTRIDGES SHALL BE MEDIA -FILLED, PASSIVE, SIPHON ACTUATED, RADIAL FLOW, AND SELF CLEANING. RADIAL MEDIA DEPTH SHALL
7-INCHES. `TI
ME SHALL BE AT LEAST 39 SECONDS.
BE FIL ER CONTACT
7. SPECIFIC FLOW RATE IS EQUAL TO THE FILTER TREATMENT CAPACITY (gpm) DIVIDED BY THE FILTER CONTACT SURFACE AREA (sq ft).
FLOW KIT INSTALLATION NOTES
1. ANY SUB -BASE, BACKFILL DEPTH, ANDIOR ANTI -FLOTATION PROVISIONS ARE SITE -SPECIFIC DESIGN CONSIDERATIONS AND SHALL BE
OUTLET SUMP SPECIFIED BY ENGINEER OF RECORD.
HDPE OUTLET RISER 2. CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE STORMFILTER STRUCTURE
(LIFTING CLUTCHES PROVIDED).
3 CONTRACTOR TO INSTALL JOINT SEALANT BETWEEN ALL STRUCTURE SECTIONS AND ASSEMBLE STRUCTURE.
4. CONTRACTOR TO PROVIDE, INSTALL, AND GROUT INLET PIPE(S).
SECTION A -A
5. CONTRACTOR TO PROVIDE AND INSTALL CONNECTOR TO THE OUTLET RISER STUB. STORMFILTER EQUIPPED WITH A DUAL DIAMETER HDPE
OUTLET STUB AND SAND COLLAR. IF OUTLET PIPE IS LARGER THAN 8 INCHES, CONTRACTOR TO REMOVE THE 8 INCH OUTLET STUB AT MOLDED
IN CUT LINE. COUPLING BY FERNCO OR EQUAL AND PROVIDED BY CONTRACTOR.
6. CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION -RELATED EROSION RUNOFF.
60" 0 STORMFILTER MANHOLE
NTs
R-392225
ASAPPROVEDBULLT
FOR CONSTRUCTION N
SUBJECT TO ERRORS AND OMISSIONS
C'7
"I CERTIFY THAT THE INFORMATION SHOWN THEREON WHICH WAS
AS -BUILT BY D.R. STRONG, AND MAY INCLUDE LOCATIONS,
ELEVA BONS, DEPTHS, PIPE SIZES, AND AS-BUIL T COMMENTS, ACCURATELY REFLECTS EXIS77NG FIELD COND177ONS AS DETERMINED BY: DATE:
U
BY ME OR UNDER MY DIRECT SUPERVISION ON THIS DATE.•
W
1211012018. " BY: DATE:
O
BY. DATE:
BY: DATE:
1.1.1
ax ., z------------ a^+,. DATE:. '
. - SURVEYED. SCALE. .� -
_' VERTICAL: NAVD 1988 •.
s,ls 12.1018
HORRRTICA NAD 1983/1981 AVANA RIDGE P U D
r,E D.R. STRONG : AS NOTED
CITY' OF
DESIGNED.
FlELDBOOK:
D gs' STORMFILTER DETAILS
CONSULTING ENGINEERS � '
ENGINEERS PLANNERS SURVEYORS
DRAWN:
R E N TO N PAGE: Q
CEN DATUM
AT t
ONE INCH 6N'1VM DRAWING N0. Z
620 - 7th AVENUE KIRKLAND, WA 98033
PIOnnIn Buildln Pub►Ic Works Dept.
10615 SE 172ND ST RENTON WA C24 Q
CHECKED AT FULL SCALE CJ/ (�/ p 1 f
A
0425.827.3063 J F425.827.2423 IF NOT ONE INCH
l _ NO. REVISION BY DATE AP P R APPROVED: SCALEACCORDINGLY -C 15008868 B 15008865 B 15008867 SHEET: OF:
MAJ 24 26 Q.
ORS. PROJECT NO. 1.5088