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STORM WATER MANAGEMENT OPERATIONS & MAINTENANCE MANUAL
Our Lady of Mount Carmel 14598 Oak Ridge Road, Carmel, Indiana 46032
July 2021 PREPARED FOR OUR LADY OF MOUNT CARMEL 14598 OAK RIDGE ROAD CARMEL, IN 46032
8365 Keystone Crossing, Suite 201 Indianapolis, Indiana 46240 Phone: (317) 202-0864 Fax: (317)202-0908
Our Lady of Mount Carmel
Our Lady of Mount Carmel
OPERATIONS & MAINTENANCE MANUAL
Table of Contents
1. BMP Owner
2. Definition of Best Management Practice (BMP)
3. Description of BMP
a. Xcelerator XC-3
4. Inspection and Maintenance
a. Xcelerator XC-3
5. Owner Acknowledgement Agreement
6. Operation, Maintenance and Management Inspection Checklists
7. BMP Location Map
8. BMP Details
a. Xcelerator XC-3
Our Lady of Mount Carmel
1. BMP OWNER
Name: Our Lady of Mount Carmel Parish
Attn. Mr. Glen Ritchey, Director of Finance and Administration
Address: 14598 Oak Ridge Road
Carmel, IN 46032
Phone: 317-663-4011
Email: ritcheyg@olmc1.org
2. DEFINITION OF A BEST MANAGEMENT PRACTICE (BMP)
A Best Management Practice (BMP) is defined as a structural measure (wetland, pond, vegetated
swale, sand filter, etc.) designed to benefit water quality and quantity. Storm water can easily
become polluted by grease, oil, sediment, chemicals, and other contaminants as it travels to an
inlet or receiving water. The purpose of a BMP is to improve storm water quality primarily through
the removal of Total Suspended Solids (TSS).
The City of Carmel has Right-of-Entry to the development to inspect and maintain the BMP as
necessary. Easement(s) have been provided around the BMPs for this development, with
implied access as needed.
3. DESCRIPTION OF BMPs:
Xcelerator: BMP #1, the Xcelerator XC-3 hydrodynamic swirl filter, is used to treat storm water
on this site. The Xcelerator filter provides treatment for the most contaminated first flush, while
the cleaner peak storm runoff is diverted through the main conveyance pipe. The operation begins
when storm water enters the Xcelerator through a tangential inlet pipe which produces a circular
(or vortex) flow pattern that causes contaminates to settle. Because storm water flow is
intermittent by nature, the Xcelerator Concentrator retains water between storm events providing
both dynamic and quiescent settling of inorganic solids. The dynamic settling occurs during each
storm event, while the quiescent settling takes place between successive storms. A combination
of gravitational and hydrodynamic drag forces encourages the solids to drop out of the flow and
migrate to the center of the chamber where velocities are the lowest.
4. INSPECTION AND MAINTENANCE
Xcelerator:
• BMP Owner must routinely inspect BMPs to verify that all BMP components are
functioning as designed and are not in danger of failing. All BMPs need maintenance to
function as water quality and quantity enhancements. Maintenance can range from
dredging/pumping sediment out of the treatment structures to repairing any damage that
has affected the structure’s integrity and function.
Our Lady of Mount Carmel
• BMP Owner is responsible for the maintenance of the BMP and any costs associated with
maintaining the BMP. BMP Owner is required to perform any maintenance tasks outlined
in this text.
• BMP Owner shall keep the BMP free from litter, floating pollutants, and sediment
accumulated above levels outlined in this text.
• Representatives from the City of Carmel have the right to enter this property to inspect the
BMPs. The BMP Owner shall be financially responsible for any maintenance, repairs, or
recommendations for modification as required by the City of Carmel or its representatives
during inspections.
• Refer to the checklists with this Manual for guidance on BMP inspections.
• Inspections must be documented on the inspection forms included in this manual.
Requirements regarding the submittal of annual inspection reports to the City of Carmel
Engineering Department:
The first report is due one year after construction is completed, with subsequent reports due
each year within the same month of the initial report, or on a schedule set by the City of Carmel.
If there are any deficiencies found during the inspection, these should be addressed. If the
inspection report is not received within the month it is due, if there are deficiencies which were
not included in the report, or if any deficiencies included in the report are not addressed in a
timely manner, the BMP owner faces enforcement action from the City.
Send to: City of Carmel Engineering Department
Storm Water O & M Program Manager
1 Civic Square
Carmel, IN 46032
This Operation and Maintenance Manual is submitted to the City of Carmel, IN with the intent of
insuring the longevity and adequate functioning of all BMPs. The BMP Owner noted is
responsible for any additional maintenance and/or repair activities noted in this text as required
by the City of Carmel, and any activities required to maintain the function and longevity of the
BMP, including, if necessary, measures and / or practices that are above and beyond what is
herein described.
Right of Entry to the City of Carmel
A permanent “Access & BMP Easement” shall be created which matches the one shown on the
plans. Right of Entry is hereby granted to the City of Carmel for access, inspection and
maintenance of the drainage facilities.
Our Lady of Mount Carmel
5. OWNER ACKNOWLEDGMENT AGREEMENT
Our Lady of Mount Carmel
Owner Acknowledgement Agreement ("Agreement)
For good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the undersigned owner (“Owner”) hereby submits this Operation and
Maintenance Manual (“Manual”) to the City of Carmel, Indiana (“City”) as a written
acknowledgement of Owner’s warranty and agreement to institute, maintain, and follow the
water quality Best Management Practices (“BMPs”) listed below, and to follow and abide by
the inspection schedule and maintenance activities listed in this Manual. The Owner also hereby
agrees to provide, at Owner’s cost, all additional maintenance, repair, and/or replacement
services reasonably necessary to maintain the function and longevity of the BMP from and
including the date this Agreement is executed by Owner to and including the date on which a
new Agreement is filed with the City by another party who assumes all of the obligations and
responsibilities of Owner as set forth herein. The City of Carmel is Granted Authority to access
the BMPs.
BMPs:_One (1) Xcelerator XC-3 (hydrodynamic swirl filter)_____
_______________________________ ____________________________temp
Owner Signature Date
_______________________________ ___________________________
Printed Name Company
STATE OF INDIANA )
) SS:
COUNTY OF HAMILTON )
BEFORE ME, the undersigned, a Notary Public in and for said County and State,
personally appeared _________________________________ Owner subscribed and
sworn before this ____ day of __________________, ________.
______________________________ ______________________________
County of Residence Signature
______________________________
Commission Expiration Date
______________________________
Printed Name
Our Lady of Mount Carmel
6. OPERATIONS, MAINTENANCE AND
MANAGEMENT CHECKLISTS
Our Lady of Mount Carmel
Xcelerator Inspection Check List
Site Name:Change in ownership since last inspection?Y N
Owner Name:
Owner Address:
Owner Phone Number:
Emergency Phone Number:
Location:
Date:
Time:
Inspector Name:
Floatable Debris and Oil
1.Remove manhole lid to expose liquid surface of Aqua-SwirlTM.
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-SwirlTM 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 water phylic 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 any applicable state and/or federal laws if they contain hydrocarbons.
Sediment Accumulation
Lower a dipstick tube equipped with a ball valve (e.g. Sludge Judge or similar device) into Aqua-SwirlTM through the service access provided.
Measure the depth of the sludge. The sludge should not exceed 12" depth before maintenance. See Figures 1 and 2.
12"
Figure 1 Figure 2
Aqua-Swirl TM XCelerator ®
Inspection
Maintenance Items
Operation, Maintenance, and Inspection Manual for BMP Owners
(Note: Attach certifications for local regulatory authority including any applicable fees.)
City of Carmel, Indiana
Site and Owner Information
Aqua-SwirlTM O and M Manual
Page 1
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.
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.
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 AquaSwirlTM should not be dumped back into the
stormwater system or into a sanitary sewer.
Figure 3
Note: The AquaSwirlTM 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.
During Construction
Inspect the AquaSwirlTM every three months (minimum) and clean the system as needed. The AquaSwirlTM should be inspected and
cleaned at the end of construction regardless of whether it has reached its sediment or oil storage capacity.
First Year Post-Construction
Inspect the AquaSwirlTM every six months and clean the system as needed.
Second and Subsequent Years Post-Construction
If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction,
the system can be inspected once annually and cleaned as needed or bi-annually at a minimum.
If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction,
the system should be inspected at least once every six months and cleaned as needed. If site monitoring indicates that trapped sediment
hardens over time, the AquaSwirlTM should be cleaned prior to sediment hardening regardless of whether it has reached its sediment storage capac
Bypass Structures
Bypass structures should be inspected whenever the AquaSwirlTM is inspected and maintained as needed.
Cleaning
Inspection (continued)
Maintenance Schedule
Aqua-SwirlTM O and M Manual
Page 2
Company Name:
Street Address:
City, State, Zip:
Contact:
Office Phone:
Mobile Phone:
Pager:
Date of cleaning:(Next inspection should be 3 months from this date for the first year).
Time of cleaning:
Date of next inspection:
Floatable debris present (Y/N)?
Oil present (Y/N)?Oil depth (inches):
Any structural damage?Y N Where?
Any evidence of structural wear?Y N Where?
Odors present?Y N Describe:
Any plugging?Y N Describe:
Activity Log
Structural Conditions and Comments
Maintenance Company Information
Aqua-SwirlTM O and M Manual
Page 3
Additional Comments and/or Actions to Be Taken Time Frame
NOTES:
1. Attach site plan showing Aqua-SwirlTM location.
2. Attach detail drawing showing Aqua-SwirlTM dimensions and model number.
3. If a diversion structure is used, attached details showing basic design and elevations.
NOTES
Aqua-SwirlTM O and M Manual
Page 4
Date Construction Started:
Date Construction Ended:
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed X X X X
Inspect Bypass Structures X X X X
(if applicable) and Maintain
As Needed
Clean System*X*
* The AquaSwirlTM should be cleaned once a year regardless of whether it has reached full pollutant storage capacity during the construction
phase of the project.
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed X X
Inspect Bypass Structures X X
(if applicable) and Maintain
As Needed
Clean System*X*
* The AquaSwirlTM should be cleaned at the end of the first year post construction if it is at or near its pollutant storage capcacity.
Otherwise, the system can be cleaned at a later date depending on how quickly the sediment starts to harden.
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed*X X
Inspect Bypass Structures*X X
(if applicable) and Maintain
As Needed
Clean System*
*If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction, the system can be inspected
once annually. If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year
Post-Construction, the system should be inspected as frequently as past history warrants and cleaned as needed.
Regardless of whether the AquaSwirlTM reaches full sediment or floatable storage capacity, it should be cleaned
frequently enough to prevent captured sediments from hardening. Normally, cleaning once every two to three years should be sufficient to
prevent sediments from hardening.
*The bypass system should be inspected with each AquaSwirlTM inspection and maintained as needed.
Second and Subsequent Years Post-Construction
Month
During Construction
Month
First Year Post-Construction
Month
Aqua-Swirl TM
TABULAR MAINTENANCE SCHEDULE
Aqua-SwirlTM O and M Manual
Page 5
Aqua-SwirlTM O and M Manual
Page 6
city.
Aqua-SwirlTM O and M Manual
Page 7
Our Lady of Mount Carmel
7. BMP LOCATION MAP
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BMP
LOCATION MAPWQ11"= 80'OUR LOADY OF MOUNT CARMEL
Our Lady of Mount Carmel
8. BMP DETAILS