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Owner Acknowledgement Agreement:............................................................................... 3
Owner Information: ............................................................................................................ 4
Operation and Maintenance Requirements: ........................................................................ 4
During Construction Inspection Requirements: ............................................................. 4
Post Construction Inspection Requirements: .................................................................. 4
Appendix “A” – Location Exhibits ..................................................................................... 7
Project Vicinity Map ................................................................................................... 8
Appendix ”B” – .................................................................................................................. 9
BMP Location Map & details ................................................................................... 10
BMP & Diversion Structure Details ......................................................................... 14
Appendix “C” – Outlet Structure ...................................................................................... 16
Outlet Structure Details ............................................................................................. 17
Appendix “D” – Inspection Forms ................................................................................... 19
BMP O&M Manual
Stormwater Facility Location:
County: Hamilton Nearest Town: Carmel
Section: 24 Township: 18 North Range: 3 East
See Appendix “A’ for project Vicinity Map
Owner Information:
Owner: ECL Development, LLC Phone # 317-699-6209
Address: 12965 Old Meridian St Other Phone #
Carmel, IN 46032 Fax #
Contact: Roger Foster Emergency Phone #
Email: RogerFoster@estridge.net
Operation and Maintenance Requirements:
During Construction Inspection Requirements:
During construction the underground detention, water quality swale and dry detention
basin are to be inspected as a part of the required weekly erosion control inspections.
Inspection of the outfall protection should note the signs of sediment travel, piping,
overtopping and any other sign that the outlet protection is not working as intended.
Post Construction Inspection Requirements:
The underground detention, water quality swale and dry detention basin are to have
annual inspection. A qualified inspector should make a complete investigation of the
water quality features and surrounding area and prepare a written report. The checklist
can be found within this manual.
The ultimate responsibility for inspection and reporting lies with the underground
underground detention, water quality swale and dry detention basin owner. Written
reports made during these inspections are to be kept on file with the owner. Copies are to
be made available to the local storm water utility or division of local, state or federal
government with in forty-eight hours of request.
All storm structures and pipes shall be cleaned as necessary to remove build up of
sediment within the system.
Project Name: Rolling Hills Townhomes
BMP O&M Manual
Inspections Points:
During this inspection the presence of the following should be noted. The following is
only a partial list.
1. Sediment accumulation at points where storm sewer system discharges
2. Animal burrows
3. Excessive nutrient levels
o Spike in algae or other aquatic vegetation
4. Debris accumulation
5. Sign underground detention level has been above planned level for extended
period.
o Submerged outfall structure
o Staining of outfall structure
Suggested corrective measure to be taken:
1. Investigate the point up stream where storm water enters the sewer system. Make
appropriate repairs or notify up stream owners and make accommodations to
reduce sediment loading to the underground detention facility and hydrodynamic
separator.
2. Remove nuisance animals and fill burrows. A qualified wildlife technician is to
remove all pests in accordance to all existing regulations and in an accepted
manner.
3. Reduction of fertilizers in the upstream drainage area, physical removal of
vegetative materials, chemical treatment. Chemical treatment is the least
desirable method and only treats the problem. The other treatments suggested
will treat the cause and offer more long-term solution.
4. Collect debris and remove from site.
5. Inspect the outfall structure for obstructions and remove any debris found.
o Refer to details in Appendix “C” for any under water portions of the
outfall system.
o Use a drain “snake” to remove debris from underwater drains if
applicable. (See Appendix “C” for details of outfall structure).
A written report noting these points or other concerns is to be made during each
inspection. Corrective measures are to be suggested on the report and brought to the
attention of the owner of the underground detention facility, water quality swale and dry
detention basin. The owner should schedule appropriate repairs in a timely manner.
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 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.
Description of BMP’s:
Underground Detention – The underground detention system utilizes a series of chambers
that are encased in stone and geotextile fabric to provide the required stormwater
detention and allow for the controlled release of stormwater from the site in a manner that
meets the City’s requirement. With the system there is a sediment strip that is designed
to filer out sediment as well as any floatables that may make their way into the system.
BMP O&M Manual
Water Quality Swale – Water Quality Swales, also called Vegetative Swales, are shallow
vegetated channels to convey stormwater where pollutants are removed by filtration
through grass and infiltration through soil. They look similar to, but are wider than a
ditch that is sized only to transport flow. They require shallow slopes and soils that drain
well. Vegetated swale designs have achieved mixed performance in pollutant removal
efficiency. Vegetated swales are often used as a pretreatment measure for other
downstream BMPs. Native vegetation is planted in the bottom of the swale and should
not be mowed or sprayed.
Dry Detention Basin - Dry detention basins are depressed basins that temporarily store a
portion of stormwater runoff following a storm event. The extended dry detention basins
normally do not have a permanent water pool between storm events. The objective of
these systems is to remove particulate pollutants and to reduce maximum runoff values
associated with development to their pre-development levels. Native vegetation is
planted in the bottom of the swale and should not be mowed or sprayed.
Owner’s Responsibility:
The Owner(s) shall be solely responsible for the installation, maintenance and repair of
the stormwater management practices, drainage easements and associated landscaping
identified in this manual.
Right of Entry:
The City of Carmel or its designee is authorized to access the property as necessary to
conduct inspections of the stormwater management practices or drainage easements to
ascertain compliance with the intent of the stormwater quality measures and the
activities prescribed in this manual.
BMP O&M Manual
Appendix “A” – Location Exhibits
146th STREET
SITE
GRAPHIC SCALE
N
3961 Perry Boulevard Whitestown, IN 46075
Ph. 317-769-2916 www.innovativeeci.com
ENGINEERING & CONSULTING
ROLLING HILLS
VICINITY MAP
BMP O&M Manual
Appendix “B” – Water Quality Structure Details
EX
5
2
3
4
1
EX
101
103
108
107
110
111
104
106
112
113
105
103a
114
115
109
102
REVISIONS:3961 Perry Boulevard Whitestown, IN 46075Ph. 317-769-2916 www.innovativeeci.comENGINEERING & CONSULTINGC103 Grading PlanKnow what's
Call
below.
before you dig.
GRAPHIC SCALE
N
19122Rolling HillsTownhomesCarmel, IndianaECL Development, LLC12965 Old Meridian StreetCarmel, IN 46032317-669-6209LEGEND
101
1
DO
NOT
MOW
BMP O&M Manual
Appendix ”C” – Outlet Structures
BMP O&M Manual
Appendix “D” – Inspection Forms
SEDIMENT STRIP INSPECTION AND MAINTENANCE
Step 1) Inspect Sediment Strip for Sediment
A. Inspection Ports (If Present)
A.1. Remove/ Open Lid over inspection port.
A.2. Using a flashlight and stadia rod, measure the depth of sediment and
record on a maintenance log.
A.3 Lower a camera into the Sediment Strip for visual inspection of
sediment levels (Optional)
A.4 If sediment is at or above 3” proceed to step 2. If not, proceed to step
3.
B. All Sediment Strips
B.1 Remove cover from structure at upstream end of Sediment Strip.
B.2 Using a Flashlight, inspect down the Sediment Strip through outlet pipe.
i) Mirrors on poles or cameras may be used to avoid a confined
space entry.
ii) Follow OSHA regulations for confined space entry if entering
manhole.
B.3 If sediment is at or above 3” proceed to step 2. If not proceed to step 3.
Step 2) Clean out Sediment Strip using the JetVac Process
A. A fixed culvert cleaning nozzle with rear facing spread of 48” or more is
preferred.
B. Apply multiple passes of JetVac until backflush water is clean
C. Vacuum structure sump as required.
Step 3) Replace all covers, grates, filters, and lids. Record observations and actions.
Step 4) Inspect and clean basins and manholes upstream of the StormKeeper System.
NOTES
1. Inspect every 6 months during the first year of operation. Adjust the inspection interval based
on previous observations of sediment accumulation and high water elevations.
2. Conduct jetting and vactoring annually or when inspection shows that maintenance is required.
Underground Detention Maintenance Log
Project Name:
Location:
Stadia Rod Readings
Date Fixed point to chamber
bottom (1)
Fixed point to top of
sediment (2)
Sediment Depth
(1) - (2)Observations / Actions Inspector
Stormwater Technical Standards – Maintenance Inspection Checklists - Page 9 of 12
Bioswale, Filter Strip Inspection Checklist*
Project Location: ______________________________________________________________________________
Date/Time: ___________________________________________________________________________________
Inspector: ____________________________________________________________________________________
Maintenance Item Satisfactory/
Unsatisfactory
Recommended
Inspection
Frequency
Comments
Inlet/Outlet
Structural integrity of inlet/outlet A
Inlet/outlet clear of debris M
Pretreatment / Energy Dissipaters
No evidence of flow going around structures A
No evidence of erosion A
Device functioning to trap sediment A
Remove accumulated sediment A
BMP surface
Area free of debris?M
No evidence of erosion A
Does sediment accumulation currently require
removal?
Inspection frequency key — A = Annual, M = Monthly, S = After major storm
* Prior to field inspection, it is recommended to review the as-built plans.
Stormwater Technical Standards – Maintenance Inspection Checklists - Page 10 of 12
Maintenance Item Satisfactory/
Unsatisfactory
Recommended
Inspection
Frequency
Comments
Overall functionality
Ensure swale is functioning properly
(professional civil engineer is recommended)A
Optional considerations
Inspect BMP for invasive species.A
Qualified professional applicator selectively
herbicide invasive species A
Increase plant diversity by planting additional
vegetation A
Complaints from residents (note on back) A
Inspection frequency key — A = Annual, M = Monthly, S = After major storm
* Prior to field inspection, it is recommended to review the as-built plans.
Summary
Inspector’s remarks:
_______________________________________________________________________________________________
_______________________________________________________________________________________________
Overall condition of facility (acceptable or unacceptable): ____________________________________________
Dates any maintenance must be completed by: _____________________________________________________
Detention BMP Inspection Checklist*
Project Location:______________________________________________________________________________
Date/Time: __________________________________________________________________________________
Maintenance Item Satisfactory/
Unsatisfactory
Recommended
Inspection
Frequency
Comments
Inlet/Outlet Pipes
Structural integrity of inlet/outlet (Are
any inlet pipes broken, crumbling,
separated?)
List Approximate Diameter and Type of
Material of Inlet Pypes
Inlet Pipe 1________________________
Inlet Pipe 2________________________
Inlet Pipe 3________________________
Outlet Pipe Size/Type_______________
A
Riprap at inlet pipe (Is the riprap still
present? Is it visible and not covered with
sediment?
A
Stone around outlet pipe (Is the stone
clogged with debris and/or sediment?) A
Trash or debris blocking inlet/outlet
(Inspect to ensure no major obstructions
hindering general functionality)
M
Inspect/clean catch basin upstream of the
BMP if accessible. A
Inspect inlets and outlet for erosion (Are
there eroded areas around the pipes?) A
Inspect overflow spillway for signs of
erosion.
Pretreatment (if applicable). This might include sediment forebay, upstream catch basin, bioswale, rain garden, swirl
concentrator
Device functioning to trap/collect
sediment
Remove accumulated sediment as
appropriate for the pretreatment device.
forebay
A
Detention Pond A
Inspection frequency key — A = Annual, M = Monthly, S = After major storm
* It is recommended to review and inspect the basin with the engineering as-built plans.
Maintenance Item Satisfactory/
Unsatisfactory
Recommended
Inspection
Frequency
Comments
Inspect side slopes, berms and emergency
overflow for erosion A
Reestablish permanent native vegetation on
eroded slopes As Needed
Inspect for excess sediment accumulation in
pond if not pretreatment device is present A
Overall functionality
Ensure pond is functioning properly
(Professional Civil Engineer is
recommended)
A
Ensure the outlet is functioning properly
(Professional Civil Engineer is
recommended)
A
Optional/Enhancements
Maintain 15-20 feet “no mow and chemical
free” zone A
Mow (or burn) the “no mow” zone A
Inspect basin and “no mow” zone for
invasive species. A
Qualified professional applicator
selectively herbicide invasive species A
Increase plant diversity by planting
additional vegetation in and around pond. A
Complaints from residents (note on back) S
Encroachment on pond/no- mow zone. A
Unauthorized plantings A
Aesthetics (e.g., graffiti, unkempt
maintenance) A
Inspection frequency key — A = Annual, M = Monthly, S = After major storm
* It is recommended to review and inspect the basin with the engineering as-built plans.
Summary
Inspector’s remarks:
_______________________________________________________________________________________________
_______________________________________________________________________________________________
Overall condition of facility (acceptable or unacceptable): ____________________________________________
Dates any maintenance must be completed by: _____________________________________________________