HomeMy WebLinkAboutStormwater Operation and Maintenance ManualHealth and Wellness Suites of Carmel
North Pennsylvania Street
Carmel, Indiana
Stormwater
Operation and Maintenance Manual
Including:
Site Information
Operation and Maintenance
Inspection Checklist
Owner:
Mainstreet Property Group, LLC
C/O Laurie Schultz
14390 Clay Terrace Boulevard
Carmel, IN 46032
317-420-0205
May 17, 2013
BMP Operations and Maintenance Manual
BMP Owner Name: Mainstreet Property Group, LLC
C/O Laurie Schultz
14390 Clay Terrace Boulevard
Carmel, IN 46032
Contact Information: Name: Laurie Schultz
Phone: 317-420-0205
Fax: 317-420-0206
Email: lschultz@mainstreetcap.net
General Information
The purpose of water quality Best Management Practices is to filter the first flush of rainwater
before it enters the downstream lakes and streams. Through the use of these Best Management
Practices, the sediment and pollutant load in stormwater runoff is reduced, and in many cases the
quantity of stormwater water runoff generated is also reduced. The use of Best Management
Practices also helps to reduce hydrocarbons, trash and debris from entering waterways.
Owner Responsibility
The BMP Owner shall be responsible for all maintenance and costs associated with the proposed
BMPs. In addition, it is the owner’s responsibility to perform and/or pay for inspections and
maintenance as recommended below.
Right of Entry
The City of Carmel representatives have the right to enter the property to inspect and, if required,
maintain the BMPs at any time.
Annual Inspection Reports
Annual inspection reports shall be submitted to the City of Carmel for each BMP. 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. If there are any deficiencies found during the inspection, these
should be addresses. 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 it any deficiencies included in the report are
not addressed in a timely manner, the BMP owner faces enforcement action from the City.
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 BMPs 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.
BMPs: ___________________________________________________
___________________________________________________
___________________________________________________
_______________________________ ________________________
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
AQUASWIRL
The site contains two AS-6 Aqua-Swirls located just east of the asphalt parking lot.
Swirl concentrators are designed to remove sediment, debris, and free oil from entering
the sewer system. After construction the swirl concentrator should be inspected every six
months and cleaned as needed or once a year regardless of whether it has reached full
pollutant storage capacity. Disposal of all sediment, in addition to local requirements,
must be in accordance with all federal and state requirements. See the attached O&M
Manual for the swirl concentrator for complete details of inspection and cleaning.
Inspection
Inspect the unit every six months. The inspection should determine sediment depth,
accumulation of trash and litter, and the specific maintenance and repairs needed.
Annually check for cracks large enough to let soil enter the vault, broken or defective
plates and baffles, and crushed or damaged pipes.
Cleaning
Remove trash and litter from the vault, inlet and piping when present. Remove sediment
when it accumulates to the manufacturer’s maximum recommended depth . Cleaning
should be performed in a way that ensures removed sediment and water is not discharged
back into the storm sewer.
Safety
Work inside underground structures requires special OSHA-required confined space
equipment and procedures
Materials Handling
Disposal of waste from maintenance of drainage facilities shall be conducted in
accordance with federal, state, and local regulations. Removed sediment must be
disposed in the garbage as solid waste. Water should be disposed of in a sanitary sewer
after oils are removed using oil absorbent materials or other mechanical means. Used oil
absorbents should be recycled or disposed according to the manufacturer's instructions.
Repairs
Repair any cracked or defective plates or baffles. Repair all security and access features
so they are fully functional. This includes locking lids, covers, and ladder rungs. Replace
broken parts or lids that rock or are moved by traffic.
Detention Pond
A master planned wet detention pond is located on the eastern portion of the site. It will
be used as a stormwater quality BMP for the area shown in the BMP Location Map.
Detention facilities are designed to hold and slowly release stormwater by use of a pond
and specially designed control structure. Styles vary greatly from well manicured to
natural appearing. Generally, more natural-appearing vegetation is preferred for reduced
maintenance and wildlife habitat. Some facilities are designed to appear as natural water
bodies or are in park-like areas.
Inspection
Identify and report pollutant sources to the facility. Inspect the facility for oil and other
pollutants and remove any pollutants greater in volume than a surface sheen.
Cleaning
Trash is removed when it exceeds 1 cubic foot per 1000 square feet. Remove sediment
when it accumulates to 10 percent designed pond depth.
Material Handling
Disposal of waste from maintenance of drainage facilities shall be conducted in
accordance with federal, state, and local regulations.
Vegetation Management
The detention facility banks and safety shelf have been planted with native vegetation
and signs indicating “Do not mow or Spray” have been placed around the perimeter of
the planted area. During the establishment of the vegetation, if weed growth exceeds 10
inches in height in seeded communities, mow at a height of 4 to 6 inches. Do not cut the
emergent community.
Stormwater control facilities are, in effect, water body buffers in which pesticides and
fertilizer are not used. Use mechanical methods to control weeds. Pesticides, herbicides
and fertilizers are not used in stormwater control facilities.
Trees should not be allowed to grow on emergency overflows and berms that are over 4
feet high. Trees can block flows and roots can lead to berm failure. Remove any trees.
Remove larger roots (where the base of the tree is greater than 4 inches) and restore the
berm.
Repairs
Repair and seed bare areas. Repair eroded slopes when rills form, where the cause of
damage is present, or there is potential for future erosion. Use cover BMPs on exposed
soils.
Rodent holes on a dam or berm can pipe water. Destroy the rodents, preferably by
trapping, and repair the darn or berm.
Repair the liner if it is visible and repair or replace where there are more than three holes
greater than ¼-inch diameter.
If berms or dams show signs of settlement or sinkholes, serious problems may be
occurring.
Consult a licensed professional engineer to determine the cause of the settlement or
sinkhole.
Site Name:Change in ownership since last inspection?YN
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 an 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. At a maximum, the sludge should not exceed 36" depth before maintenance. See Figures 1 and 2.
Figure 2Figure 1
Carmel, Indiana
Site and Owner Information
Aqua-Swirl TM
Inspection
Maintenance Items
Operation, Maintenance, and Inspection Manual for BMP Owners
(Note: Attach certifications for local regulatory authority including any applicable fees.)
36"
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.
Call a local vactor company 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.
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 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 capa
Second and Subsequent Years Post-Construction
If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Constructio
the system can be inspected once every six months and cleaned once annua
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 once every six months and cleaned as needed. The AquaSwirlTM should be cleaned
annually regardless of whether it reaches its sediment or floatable pollutant 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?YNWhere?
Any evidence of structural wear?YNWhere?
Odors present?YNDescribe:
Any plugging?YNDescribe:
Activity Log
Structural Conditions and Comments
Maintenance Company Information
Aqua-SwirlTM O and M Manual
Page 3
Additional Comments and/or Actions to Be TakenTime 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 123456789101112
Inspect and Clean as Needed XXXX
Inspect Bypass Structures XXXX
(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. In addition, the system should be cleaned at the end of construction regardless
of whether it has reach full pollutant storage capacity.
Activity 123456789101112
Inspect and Clean as Needed XXXX
Inspect Bypass Structures XXXX
(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.
Activity 123456789101112
Inspect and Clean as Needed*XX
Inspect Bypass Structures*XX
(if applicable) and Maintain
As Needed
Clean System*XX
*If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction,
the system can be inspected every six months and cleaned 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 (once every six months minimum)
and cleaned as needed. The AquaSwirlTM 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
AquaSwirlTM is inspected and maintained as needed.
Aqua-Swirl TM
TABULAR MAINTENANCE SCHEDULE
Second and Subsequent Years Post-Construction
Month
During Construction
Month
First Year Post-Construction
Month
Aqua-SwirlTM O and M Manual
Page 5
TABULAR MAINTENANCE SCHEDULE (Wet Detention Pond)
Date Construction Started:
Date Construction Ended:
During Construction
Month
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed X X X X
Inspect Outfall Structure X X X X
and Maintain As Needed
First Year Post-Construction
Month
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed X X X X
Inspect Outfall Structure X X X X
and Maintain as Needed
Second and Subsequent Years Post-Construction
Month
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed* X X
Inspect Outfall Structure X X
and Maintain as Needed