HomeMy WebLinkAboutOperations & Maintenance Manual
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Operations and Maintenance Manual
for
Mike's Express Corwash - Michigan Road
Carmel, Indiana
Prepared for:
Mike's Express Carwash
10251 Hague Road
Indianapolis, IN 46256
"Jqr;J,LJ9ry 1 0, 2008
~f!yis~51, Fe.br~ary 1, 20p8
'*~
Architects + Engineers
7172 Graham Road Indionapolis, Indiana 46250 Telephone 317 842 6777 Facsimile 317 841 4798
www.cripe.biz
PIC: 070400-20000
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Operations and Maintenance Manual
For
Stormwater Treatment System
Mike's Express Carwash Store No. 35
Carmel, Indiana
TABLE OF CONTENTS
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1 .0 I ntrod ucti 0 n . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1
1.1 Project Description..........................................................................................1
1 .2 Purpose and Performance................................................................................. 1
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2.0 BMP Maintenance ........................................................................... 2
2.1 Maintenance and Inspections............................................ .............................2
2.2 Documentation .................... ..... .............................................. ...........................3
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Appendix A - Operation and Maintenance Recommended Guidelines
Appendix B - BMP Exhibit
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1.0 Introduction
The Hamilton County (the County) has adopted a policy that the control of stormwater
runoff quality will be based on the management of total suspended solids (T88). The
Water Quality Management Program is based on the performance of approved Best
Management Practices (BMP) to remove 80% of T8S.
1.1 Project Description
The stormwater treatment system for the Mike's Express Carwash construction project
consists of two Aqua Swirl A8-2 CFDs. This Operations and Maintenance (O&M)
Manual is supplemental to the Drainage Design Report issued for this project.
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lJ 1.2 Purposes and Performance
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To achieve the 80% target removal rate of T8S from the stormwater runoff associated
with the proposed improvements, the Aqua Swirl AS-2 was selected based on the
physical site characteristics and the available land area. The benefits of this type of
BMP are high pollutant removal rates. The BMPs are located prior to the release point
of a 24" Rep.
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o 2.0 BMP Maintenance
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As an element of the Water Quality Program, the Owner of the BMP shall adopt a
maintenance and inspection program. This O&M Manual documents that program.
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2.1 Maintenance and Inspections
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Routine inspections, maintenance, and the costs necessary for the maintenance and
repair of the BMP are the responsibility of the BMP Owner. The Owner shall send
copies of all inspection and maintenance reports at least annually to the Hamilton
County Surveyor's Office. The following is the recommended inspection items and
timeframes for the Water Quality Unit.
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Inspection Frequency: Quarterly and After Major Rainfall Events (4 inches or
more of rainfall in any 24 hour period)
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Date
March 1, 20091
Inspection Item: Sediment - remove sediment when the sediment volume
has reduced the storage area by 20% or if the depth of
sediment has reached approximately 25% of the diameter
of the structure. The system should be pumped clean using
a high velocity vacuum truck.
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Free-floating oil and floatable debris - use a high velocity
vacuum truck to clean the pollutants. After recording the
measurements on the Inspection Data Sheet (attached in
Appendix A), the vacuum hose is lowered through the
access opening and the floating debris and oil are
removed. Usually, confined space entry can be avoided by
inspecting from the manhole entrance and cleaning the
system by using a vacuum hose.
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2.2 Documentation
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The BMP Owner is required to maintain complete inspection reports and records and to
update the O&M manual as necessary for the BMP. The reports shall be made
available to Hamilton County (the County) upon request. Inspection reports should
utilize the Inspection Checklist provided in Appendix A.
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The City must be notified of any changes in Ownership of the BMP, any major repairs to
the BMP, or a failure of the BMP in writing within 30 days of the occurrence. All
correspondence shall be directed to:
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Hamilton County Surveyor's Office, Stormwater Division
1 Hamilton Co. Square, Suite 188
Noblesvllle, IN 46060
Attn: Bob Thompson
Phone: (317) 776-8495
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APPENDIX A
Operation and Maintenance Recommended
Guidelines
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AQUA-SWIRL ™ SPECIFICATION NOTES
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1. Manufacturer shall be responsible for
complete assembly of Swirl Concentrator.
2. Swirl Concentrator shall be fabricated from
high-density polyethylene (HDPE) ASTM F
714 cell class 345464C per ASTM D 3350.
The Swirl Concentrator wall (greater than 54"
OD) shall be fabricated from profile wall
HDPE ASTM F 894 RSC 250.
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3. HDPE stub outs and internal components
shall be extrusion welded using accepted
welding practices. Stub outs shall be
supplied by Manufacturer and welded on
inside and outside.
4. If lifting eyes disturb grade elevation (rim)
or concrete pad rebar alignment, they may
be cut in field after installation of Swirl
Concentrator by Contractor.
5. Manufacturer shall supply direct access to
Swirl Concentrator via 32-inch OD riser(s),
which can be field cut to match finished
grade by Contractor.
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6. Contractor shall supply pipe couplings to
and from Swirl Concentrator, which shall be
Fernco or Mission style neoprene boot with
stainless steel tension bands and shear
guard.
For corrugated plastic pipe, or pipe with a
diameter of 24// or larger, it is recommended
that Contractor use a Mar Mac coupling
(www.marmac.com)/ or equal, with adhesive
mastic and tightening bands to create a
watertight seal around the joint. The joint
shall then be immobilized with a concrete
collar with compacted base as described in
either Note 11 or 12 herein. Mar Mac, or
equal, couplings shall overlap the pipe joint a
minimum of 1 foot on either side.
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7. Contractor shall prepare excavation and
off"load Swirl Concentrator. Contractor is
responsible for bedding and backfill around
Swirl Concentrator as detailed on site plan.
(see notes 11 and 12)
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8. Manufacturer shall supply standard
manhole frame(s) and cover(s). (Traffic
rated H20)
9. Where traffic loading (H-20) is required or
anticipated, a reinforced concrete pad must
be placed over the entire Swirl Concentrator
per concrete design as calculated by
Engineer. Sample of typical concrete design
detail is available upon request.
10. Unless other traffic barriers are present,
bollards shall be placed around access risers
in non-traffic areas to prevent inadvertent
loading by maintenance vehicles. Sample of
typical bollard installation detail and
recommended locations of bollards around
the Swirl Concentrator can be provided upon
request.
11. Excavation and Bedding - The trench and
trench bottom shall. be constructed in
accordance with ASTM D-2321, Section 6,
Trench Excavation, and Section 7,
. Installation. The HOPE Swirl Concentrator
shall be installed on a stable base consisting
of 12-inches of Class I stone materials as
defined by ASTM D2321, Section 5,
Materials, and compacted to 95% proctor
density. All required safety precautions for
Swirl Concentrator installation are the
responsibility of the Contractor.
12. Backfill Requirements - Backfill materials
shall be Class I Stone or Class II materials
(well graded gravels, gravelly sands; contains
little or no fines), as defined by ASTM D2321,
Section 5, Materials, and compacted to 90%
proctor density. Class I stone is preferred.
Backfill and bedding materials shall be free of
debris. Backfilling shall conform to ASTM
F1759, Section 4.2, "Design Assumptions".
Backfill shall extend at least 42 inches
outward from Swirl Concentrator and for the
full height of the Swirl Concentrator
(including riser(s)) extending laterally to
undisturbed soils.
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A qua-Swirl ™
Operation, Maintenance, and Inspection Manual for BMP Owners
City of Carmel, Indiana
(Note: Attach certifications for local regulatory authority including any applicable fees.)
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Site Name:
Change in ownership since last inspection?
y
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Owner Address:
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Owner Phone Number:
Emergency Phone,Number:
U Location:
Date:
U Time
Inspector Name'
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Floatable Debris and Oil
1. Remove manhole lid to expose liquid surface of Aqua-Swirl™
2. Remove floatable debris with basket or net if any is present
3. If a hydrocarbon spill has occurred, (e.g. more than a sheen of oil or gas is present) the system should be cleaned immediately
(see "Cleaning" Figure 3),
Note: Water in an Aqua-Swirl™ can appear black like oil due to the dark body of the surrounding structure. Oil appears
darker than water in the system and is usually accompanied by debris (e.g. Styrofoam, etc.) with obvious signs of oil stains.
The depth of oil can be measured with an oil/water interface probe, a stadia rod with waterphylic paste,
a coliwasa, or by simply collecting a representative sample with a jar attached to a rod.
4. If hydrocarbon absorbant floc or pads are used, these should be inspected to determine whether they are loaded with
hydrocarbons. This will be indicated by a dark colaration of the pad or floc. Pads and/or floc should be removed and
disposed of in accordance with City of Indianapolis, and an applicable state and/or federai laws if they contain hydrocarbons.
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Sediment Accumulation
Lower a dipstick tube equipped with a ball valve (e,g, Sludge Judge or similar device) into Aqua-Swirl™ through the service access provided,
Measure the depth of the sludge. At a maximum, the sludge should not exceed 36" depth before maintenance, See Figures 1 and 2.
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36"
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Figure 2
Figure 1
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Aqua-Swirl™ 0 and M Manual
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Diversion Structures
If an external diversion structure is present on the ,site, this should be inspected for the following items,
1, Inspect weir or other structure for structural decay or damage, Weirs are more susceptible to damage than off-set piping and should
be checked to confirm that they are not.crumbling or decaying,
2, Inspect diversion structure and by-pass piping for signs of structural damage or blockage from debris or sediment accumulation.
3. Measure elevations on diversion weir or piping to ensure it is consistent with site plan design.
4. Inspect downstream structure in diversion system for signs of blockage or structural failure.
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Call a local vactorcompany to remove sediments, oils and other
floatable pollutants with a vactor. Dispose of all waste in
accordance with City of Indianapolis and any applicable state,
and/or federal requirements
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Oil should be pumped and removed with any liquids and
sediments that have been trapped in the system.
These liquids should be taken to an industrial waste water
treatment facility for treatment Liquids and solids pumped from
the AquaSwirl™ should not be dumped back into the
stormwater system or into a sanitary sewer.
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Figure 3
Note: The AquaSwirl™ is designed so that entry to the system is not necessary for inspection or maintenance, If, however,
you wish to enter the system, this is an OSHA confined space entry and OSHA confined space entry procedures should be followed
to enter the system.
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During Constr.uction
Inspect the AquaSwirl™ every three months (minimum) and clean the system as needed. The AquaSwirl™ should be inspected and
cleaned at the end of construction regardless of whether it has reached its sediment or oil storage capacity.
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First Year Post-Construction
Inspect the AquaSwirl™ every three months and clean the system as needed.
Inspect and clean the system once annually regardless of whether it has reached its sediment or floatable pollutant storage capacity,
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Second and Subsequent Years Post~Construction
If the AquaSwirl""did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction,
the system can be inspected once every six months and cleaned once annually.
If the AquaSwirl™ reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction,
the system should be inspected once every six months and cleaned as needed, The AquaSwirl™ should be cleaned
annually regardless of whether it reaches its sediment or floatable pollutant capacity,
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Bypass Structures
Bypass structures.should be inspected whenever the AquaSwirl™ is inspected and maintained as needed.
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Aqua_Swirl™ 0 and M Manual
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Company Name:
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SIreet Address:
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City, State, Zip
Contact:
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Offic:e Phone:
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Mobile Phone:
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Pager:
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Dale of cleaning:
(Next inspection should be 3 months from this date for the first year).
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Time of cleaning:
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Date of next inspection:
Floatable debris present (Y/N)?
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Oil present (Y/N)?
Oil depth (inches):
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Any structural damage?
Y
N
Where?
Any evidence of structural wear?
Y
N
Where?
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Odors present?
y
N
Describe:
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Any plugging?
y
N
Describe:
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Aqua-Swirl™ 0 and M Manual
Page 3
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Additional Comments and/or Actions to Be Taken
Time Frame
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NOTES:
1. Attach site plan showing Aqua-Swirl™ location..
2. Attach detail drawing showing Aqua-Swirl™ dimensions and model number.
3. If a diversion structure is used, attached details showing basic design and elevations.
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Aqua-Swirl™ 0 and M Manual
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. ....,.. ~qua-StlllirJ ™ . ..... .... .
TABUL.'ARMAINTENANCESCHEDOLE.;'i' '
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Date Construction Started:
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Date Construction Ended:
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Activity
Inspect and Clean as Needed
2
3
X
4
5
8
9
X
10
11
12
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Inspect Bypass Structures
(if applicable) and Maintain
As Needed
x
X
X
x
Clean System~
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, The AquaSwirl™ should be cleaned once a year regardless of whether it has reached full pollutant
storage capacity. In addition, the system should be cleaned at the end of construction regardless
of whether it has reach full pollutant storage capacity.
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Activity
Inspect and Clean as Needed
2
3
X
4
5
Month
6 7
X
8
9
X
10
11
12
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Inspect Bypass Structures
(if applicable) and Maintain
As Needed
x
x
x
x
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Clean System~
X'
~ The AquaSwirl™ should be cleaned once a year regardless of whether it has reached full pollutant
storage capacity.
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Activity
Inspect and Clean.as Needed'
2
3
4
5
Month
6 7
X
8
9
10
11
12
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Inspect Bypass Structures'
(if applicable) and Maintain
As Needed
x
x
Clean System"
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"If the AquaSwirl™ did not reach full sediment or floatable pollutant capacity in the First Year Post-Construc::tion,
the system can be: inspected every six months and cleaned once annually.
If the AquaSwirl™ reached full sediment or floatable pollutant capacity in less than 12 months in the First Year
Post-Construction, the system should be inspected asfrequently as past history warrants (once every six months minimum)
and cleaned as needed. The AquaSwirl™ should be cleaned annually regardless of whether it
reaches its sediment or floatable pollutant capacity. External bypass structures, if present, should be inspected whenever the
AquaSwirl™ is inspected and maintained as needed.
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Aqua_Swirl™ 0 and M Manual
Page 5
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APPENDIX B
BMP Exhibit
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STANDARD NOTE:
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System shall be designed for the following capacities:
Swirl Treatment Flow: 1.1 cfs
Swirl Sediment Storage: 10 ft3
Swirl Oil/Debris Storage: 37 gal.
* Please see accompanied Aqua~Swirl
specification notes.
* See Site Plan for actual system orientation.
.
Pipe coupling
by Contractor.
12" long Stub-out
by Manufacturer.
Manhole Frame and ~
Cover by ~anufacturer._ ~ _ ~32"_QD
(Se-e-OetaJlt----- - - I
42"
38"
Rim elevations to match finished
I ~ f- - g~l!9~.~OPE r~se. ~~ can be field
- - cut by Contractor.
t
Varies
f
12 3/4" 00 MAX
t
42"
Octagonal Base Plate
Swirl Inlet/Outlet
Arched Baffles
60"
...
Arched
Baffles
Plan View
Sollards shall be placed around access
riser(s) in non-traffic areas to prevent
inadvertent loading by maintenance
vehicles.
12"
TR~ATI-o'lI'!:""''T eOL.,UTIClNEL
Document: AS-2 STD
Drawn 8; JTD
Scale; i: 20
Date: 04!18/06
U.S. Patent No. 6524473 and other Patent Pending
Manhole !Frame & Cover Detail
for Non-Traffic Areas Onlv
NTS
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Section A-A
Aqua-Swirl Concentrator ModeJ AS-2 CFD Standard D~tail
,
Place small amount of
concrete to support and
level manhole frame. DO
NOT allow manhole frame
to rest upon HOPE riser.
cover~
. . . . . Soil . . . ,,~r""""''''''..C,'cl4;;;'}.E"J'-~i~,'''\4;&1!:i ... Soil . . . .. 1"
1/2"J
1/2"
:sShield
l3 Kanasita Drive, Suite B, Chattanooga, TN 37343
Phone (883) 344-9044 Fax (423) 826-2112
www.aauashielclinc.com
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APPENDIX C
Water Quality Calculations
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Type. . .. Master Network summary Page 1.01
Name.... Watershed
File.... O:\2007\070400\20000\calcs\Engr\Storm\AQUASW1RLS1ZING_01-07-06.PPW
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MASTER DESIGN STORM SUMMARY
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Net~ork Storm Collection: Hamilton County
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Return Event
Total
Depth
in
Rainfall
Type
RNF ID
100
1.0000
Synthetic Curve
Hamilton County
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MASTER NETWORK SUMMARY
SCS Unit Hydrograph Method
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(*Node=Outfall; +Node=Diversion;)
(Trun~ HYG Truncation: Blank~None; L=Left; R~Rt; LR~Left&Rt)
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Max
Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage
Node 1D Type Event ae-ft Trun hrs cis ft ac-ft
--~~---~--------- -------~~~ --------- -------- -------- ------------
"8TR 701 JeT 100 .028 11 . 8500 .14
"STR 706 JCT 100 .031 11 . 9500 .16
WQ_ NORT;H AREA 100 .031 11 . 9500 .16
I~Q SOUTH AREA 100 .028 11.8500 .14
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SIN: F21BOSA2E1C9
PondPack Vel". 9.0046
Paul I. Cr~?e Inc
Time: 12:48 PM
Date: 2/4/2008