20180831132139.pdfMarch 30, 2018
RE: Prospect Lane, Edmunds Washington
Dear Ben
THE MOST ADVANCED NAME IN WATER MANAGEMENT SOLUTIONS""
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0MG
Looking at the attached drawings, dropping the inlet 13" will not affect the operation of the BayFilter BF-72-2 that
was approved for this project. The key is that the standpipe overflow remains at the same height (426.010) and
provides the needed head to drive the filters. I double checked with our engineering department just to make sure.
Please check with the design engineer and make sure they have no issue with your new inlet elevation and let me
know if you need any further assistance.
Please contact me if you have any questions. Thank you.
Regards,
x
- NW -A
Jim Ficker
Water Quality Product Manager -West
Advanced Drainage Systems, Inc.
Jim.ficker@ads-pipe.com
Phone: 503-956-1031
ADVANCED DRAINAGE SYSTEMS, INC. 4640 TRUEMAN BOULEVARD, HILLIARD, OH 43026 TEL: 614 / 658-0050 800 / 733-7473
HTTP:11WWW.ADS-PIPE COM
PROJECT INFORMATION
ENGINEERED
TIM SNELL
PRODUCT
509-993-0813
MANAGER:
TIM.SNELL@ADS-PIPE.COM
DANNYJONES
ADS SALES REP:
559-253-9931
'T
DANNY,JONES@ADS-PIPE.COM
u�
PROJECT NO: -
�S 0 6 5"91
BAYSAVER BAYFILTER SPECIFICATIONS
�Iffib *.dL
LOVELL-SAUERLAND &AS OCIINITEG
DATE: 1 F
MIKIDS a Ji-3 / 2- �) - OY�
ADVANCED DRAINAGE SYSTEMS, INC.
PROSPECT LANE
EDMONDS, WASHINGTON
PRODUCTS
A . INTERNAL COMPONENTS ALL COMPONENTS INCLUDING CONCRETE STRUCTURE(S), PVC MANIFOLD PIPING AND FILTER CARTRIDGES,
SHALL BE PROVIDED BY BAYSAVER TECHNOLOGIES LLC, 1030 DEER HOLLOW DRIVE, MOUNT AIRY, MD (800,229.7283).
B. PVC MANIFOLD PIPING: ALL INTERNAL PVC PIPE AND FITTINGS SHALL MEET ASTM D1785. MANIFOLD PIPING SHALL BE PROVIDED TO THE
CONTRACTOR PARTIALLY PRE-CUT AND PRE -ASSEMBLED.
C. FILTER CARTRIDGES EXTERNAL SHELL OF THE FILTER CARTRIDGES SHALL BE SUBSTANTIALLY CONSTRUCTED OF POLYETHYLENE OR
EQUIVALENT MATERIAL ACCEPTABLE TO THE MANUFACTURER. FILTRATION MEDIA SHALL BE ARRANGED IN A SPIRAL LAYERED FASHION
TO MAXIMIZE AVAILABLE FILTRATION AREA. AN ORIFICE PLATE SHALL BE SUPPLIED WITH EACH CARTRIDGE TO RESTRICT THE FLOW RATE
TO A MAXIMUM OF 45 GPM.
D. FILTER MEDIA: FILTER MEDIA SHALL BE BY BAYSAVER TECHNOLOGIES LLC AND SHALL CONSIST OF THE FOLLOWING MIX: A BLEND OF
ZEOLITE, PERLITE AND ACTIVATED ALUMINA,
E. PRECAST CONCRETE VAULT: CONCRETE STRUCTURES SHALL BE PROVIDED ACCORDING TO ASTM C. THE MATERIALS AND STRUCTURAL
DESIGN OF THE DEVICES SHALL BE PER ASTM C478, C857 AND C858. PRECAST CONCRETE SHALL BE PROVIDED BY BAYSAVER
TECHNOLOGIES, LLC.
PERFORMANCE
A. THE STORMWATER FILTER SYSTEM SHALL BE AN OFFLINE DESIGN CAPABLE OF TREATING 100% OF THE REQUIRED TREATMENT FLOWAT
FULL SEDIMENT LOAD CONDITIONS.
B. THE STORMWATER FILTER SYSTEM'S CARTRIDGES SHALL HAVE NO MOVING PARTS.
C. THE STORMWATER TREATMENT UNIT SHALL BE DESIGNED TO REMOVE AT LEAST 85% OF SUSPENDED SOLIDS, 65% OF TOTAL
PHOSPHORUS, 65% OF TURBIDITY, 60% OF TOTAL COPPER, AND 60% OF TOTAL ZINC BASED ON FIELD DATA COLLECTED IN COMPLIANCE
WITH THE TECHNOLOGY ACCEPTANCE RECIPROCITY PARTNERSHIP TIER 11 TEST PROTOCOL.
D. THE STORMWATER FILTRATION SYSTEM SHALL REDUCE INCOMING TURBIDITY (MEASURED AS NTUs) BY 50% OR MORE AND SHALL NOT
HAVE ANY COMPONENTS THAT LEACH NITRATES OR PHOSPHATES.
E. THE STORMWATER FILTRATION CARTRIDGE SHALL BE EQUIPPED WITH A HYDRODYNAMIC BACKWASH MECHANISM TO EXTEND THE
FILTER'S LIFE AND OPTIMIZE ITS PERFORMANCE.
F. THE STORMWATER FILTRATION SYSTEM SHALL BE DESIGNED TO REMOVE A MINIMUM OF 65% OF THE INCOMING TOTAL PHOSPHORUS
(TP) LOAD.
G. THE STORMWATER FILTRATION SYSTEM'S CARTRIDGES SHALL HAVE A TREATED SEDIMENT CAPACITY FOR 80% TSS REMOVAL BETWEEN
150-350 LBS.
BAYFILTER MAINTENANCE
6C APPROVED
El APPPOV,'-..D AS NOTED
El REVISE-` &RESUBMIT
[I NOT APPROVED
APPROVAL OF THESE DOCUMEN FS DOES NOT RELIEVE
CONTRACTOR OF THEIR RESPONSIBILITY IN REFERENCE TO
FIELD VERIFICATIONS OF All DIMENSIONS; JOBSITE CONDIT101INS
AND REQUIRENIFNTS; COORDINATION WITH ALL TRADES- VIV
COMPLYING WITH ALL. STATE AND CITY ORDINANCES 06 'c'
l".QUIREM'c" NTS ANO CONTRACT DOCUMENTS.
Evilalao"I'll
THE BAYFILTER SYSTEM REQUIRES PERIODIC MAINTENANCE TO CONTINUE OPERATING AT ITS PEAK EFFICIENCY DESIGN. THE MAINTENANCE
PROCESS COMPRISES THE REMOVAL AND REPLACEMENT OF EACH BAYFILTER CARTRIDGE AND THE CLEANING OF THE VAULT OR MANHOLE WITH A
VACUUM TRUCK, FOR BEST RESULTS, BAYFILTER MAINTENANCE SHOULD BE PERFORMED BY A CERTIFIED MAINTENANCE CONTRACTOR. A QUICK
CALL TO AN ADS ENGINEER OR CUSTOMER SERVICE REPRESENTATIVE WILL PROVIDE YOU WITH A LIST OF RELIABLE CONTRACTORS IN YOUR AREA.
WHEN BAYFILTER IS INITIALLY INSTALLED, WE RECOMMEND THAT AN INSPECTION BE PERFORMED ON THE SYSTEM IN THE FIRST SIX (6) MONTHS.
AFTER THAT, THE INSPECTION CYCLE TYPICALLY FALLS INTO A BIANNUAL PATTERN GIVEN NORMAL STORM OCCURRENCE AND ACTUAL SOLIDS
LOADS.
WHEN BAYFILTER EXHIBITS FLOWS BELOW DESIGN LEVELS, THE SYSTEM SHOULD BE INSPECTED AND MAINTAINED AS SOON AS PRACTICAL.
REPLACING A BAYFILTER CARTRIDGE SHOULD BE CONSIDERED AT OR ABOVE THE LEVEL OF THE MANIFOLD.
MAINTENANCE PROCEDURES
1. REMOVE THE MANHOLE COVERS AND OPEN ALL ACCESS HATCHES.
2. BEFORE ENTERING THE SYSTEM MAKE SURE THE AIR IS SAFE PER OSHA STANDARDS OR USE A BREATHING APPARATUS. USE LOW 02, HIGH
CO. OR OTHER APPLICABLE WARNING DEVICES PER REGULATORY REQUIREMENTS.
3. USING A VACUUM TRUCK, REMOVE ANY LIQUID AND SEDIMENTS THAT CAN BE REMOVED PRIOR TO ENTRY.
4. USING A SMALL LIFT OR THE BOOM OF THE VACUUM TRUCK, REMOVE THE USED CARTRIDGES BY LIFTING THEM OUT
5. ANY CARTRIDGES THAT CANNOT BE READILY LIFTED CAN BE EASILY SLID ALONG THE FLOOR TO A LOCATION THEY CAN BE LIFTED VIA A BOOM
LIFT.
6. WHEN ALL THE CARTRIDGES HAVE BEEN REMOVED, IT IS NOW PRACTICAL TO REMOVE THE BALANCE OF THE SOLIDS AND WATER. LOOSEN THE
STAINLESS CLAMPS ON THE FERNCO COUPLINGS FOR THE MANIFOLD AND REMOVE THE DRAINPIPES AS WELL. CAREFULLY CAP THE MANIFOLD
AND THE FERNCO'S AND RINSE THE FLOOR, WASHING AWAY THE BALANCE OF ANY REMAINING COLLECTED SOLIDS.
7. CLEAN THE MANIFOLD PIPES, INSPECT, AND REINSTALL.
8. INSTALL THE EXCHANGE CARTRIDGES AND CLOSE ALL COVERS.
9. THE USED CARTRIDGES MUST BE SENT BACK TO ADS FOR EXCHANGE/RECYCLING AND CREDIT ON UNDAMAGED UNITS.
BAYFILTER INSTALLATION NOTES
1. CONTACT UTILITY LOCATOR TO MARK ANY NEARBY UNDERGROUND UTILITIES AND MAKE SURE IT IS SAFE TO EXCAVATE.
2. REFERENCE THE SITE PLAN AND STAKE OUT THE LOCATION OF THE BAYFILTER VAULT.
3. EXCAVATE THE HOLE, PROVIDING ANY SHEETING AND SHORING NECESSARY TO COMPLY WITH ALL FEDERAL, STATE AND LOCAL SAFETY
REGULATIONS.
4. LEVEL THE SUB —GRADE TO THE PROPER ELEVATION. VERIFY THE ELEVATION AGAINST THE MANHOLE DIMENSIONS, THE INVERT ELEVATIONS,
AND THE SITE PLANS, ADJUST THE BASE AGGREGATE, IF NECESSARY.
5. HAVE THE SOIL BEARING CAPACITY VERIFIED BY A LICENSED/ENGINEER FOR THE REQUIRED LOAD BEARING CAPACITY. ON SOLID SUB —GRADE,
SET THE FIRST SECTION OF THE BAYFILTER PRE —CAST VAULT.
6. CHECK THE LEVEL AND ELEVATION OF THE FIRST SECTION TO ENSURE IT IS CORRECT BEFORE ADDING ANY RISER SECTIONS.
7. IF ADDITIONAL SECTION(S) ARE REQUIRED, ADD A WATERTIGHT SEAL TO THE FIRST SECTION OF THE BAYFILTER VAULT, SET ADDITIONAL
SECTION(S) OF THE VAULT, ADDING A WATERTIGHT SEAL TO EACH JOINT,
S. INSTALL THE PVC OUTLET MANIFOLD,
9. INSTALL THE PVC OUTLET PIPE IN BAYFILTER VAULT.
10, INSTALL THE INLET PIPE TO THE BAYFILTER VAULT.
11. AFTER THE SITE IS STABILIZED, REMOVE ANY ACCUMULATED SEDIMENT OR DEBRIS FROM THE VAULT AND INSTALL THE FLOW DISKS,
DRAINDOWN MODULES (IF APPLICABLE), AND THE BAYFILTER CARTRIDGES,
12. PLACE FULL SET OF HOLD DOWN BARS AND BRACKETS INTO PLACE.
02013 ADS, INC,
A
PRELIMINARY SIZING SUMMARY I
BAYFILTER TREATMENT SYSTEM BF-72-2
PROJECT
8713 - 236TH STREET
SlW.
LOCATION
EDMONDS,WA
WATER QUALITY FLOW
0.0613 CFS
DRAINAGE AREA
CARTRIDGE DESIGN FLOW RATE
22.6 GP
# BAYFILTER CARTRIDGES
2
THE BAYFILTER STORMWATER MANAGEMENT SYSTEM IS
A STORMWATER FILTRATION DEVICE DESIGNED TO
REMOVE FINE SEDIMENTS. HEAVY METALS, AND
PHOSPORUS. THE SAYFILTER SYSTEM RELIES ON A
SPIRAL WOUND MEDIA FILTER CARTRIDGE WITH
APPROXIMATELY 45 SQUARE FEET OF FILTRATION AREA.
THE FILTER CARTRIDGES ARE HOUSED IN A CONCRETE
STRUCTURE THAT EVENLY DISTRIBUTES THE FLOW
BETWEEN CARTRIDGES. THE SYSTEM IS OFFLINE WITH AN
EXTERNAL BYPASS THAT ROUTES HIGH INTENSITY
STORMS AROUND THE SYSTEM. THE FILTER CARTRIDGES
REMOVE POLLUTANTS FROM RUNOFF BY FILTRATION
(INCEPTIONIATTACHMENT) AND ABSORPTION.
522 CARTRIDGE (TYP)
3" OUTLET MANIFOLD
3" FERNCO COUPLER
OVERFLOW STANDPIPE
12"0 OUTLET PIPE
2C
INVERT AT BOTTOM OF VAULT
36" SOLID LID
072" MANHOLE
STEPS
DDMV
12"0 INLET PIPE
173'
CP:r'Tlr'tKl A -A
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LOVELL-SAUERLAND &AS MATEO
DATE: 0�2 BY:
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f-1 APPROVED AS NOTED
FI ffiVISE R RESUBMIT
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(' OlslTnAG rOR OF Tl IFIR RE,3PON^rj!l-]'rY IN REFERENCL T"'.
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AND REQUIREM�il%fll'&, COOFIDINATION WITH ALL TRADES;
COMPLYING %-ViTH ALL STA 12 AND CITY ORDINANCE'S AND
PF( UICEW417` AND CONTRACT DOCUMENTS.
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