HomeMy WebLinkAboutO&M Manual 11-18-19OPERATIONS AND MAINTENANCE MANUAL
for
WATERFRONT OF WEST CLAY
SECTION 5B
4455 W. 121st Street
Zionsville, Indiana
Project #W16-0409-5B
Prepared for:
Waterfront Homes
11731 Cold Creek Court
Zionsville, IN 46077
Contact: Paul Shoopman
Telephone (317) 714-2406
E-mail: paul@shoopmanhomes.com
Prepared By: Brittany Hansen
Checked By: Travis P. Gaither, P.E.
Date:
November 18, 2019
10505 N. College Ave | Indianapolis, IN 46280 | .www.weihe.net | (317) 846-6611 | (800) 452-6408 | Fax: (317) 843-0546
Allan H. Weihe, P.E., L.S. - Founder
Operation and Maintenance Manual
Prepared For:
Waterfront of West Clay Section 5B
Carmel, Indiana
Project #W16-0409-5B
TABLE OF CONTENTS
Operation and Maintenance Manual
1.Project Narrative
2.Definitions
3. Owner Acknowledgement
4. Location Maps
5.Checklists and Maintenance Activities
•Sump Structure and Snout Guard
•Stormwater Infrastructure
PROJECT NARRATIVE
Operation and Maintenance Manual
Prepared For:
Waterfront of West Clay Section 5B
Carmel, Indiana
Project #W16-0409-5B
Project Narrative
Waterfront Homes is proposing to develop Section 5B in the “Waterfront of West Clay”
subdivision on approximately 19+ acres of land in Carmel, Indiana. Section 5B will develop 27
single family residential lots. The overall development is located between 116th Street and 121st
Street, approximately 0.6 miles east of US 421 (Michigan Road). Section 5B is east of Section 2C
and north of Section 5A in the overall development.
The proposed development is on a site at a Latitude of N 39° 57' 42" and Longitude W 86° 13' 58",
falling within Carmel, Indiana. The site is generally located in the Southwest Quarter of Section
31, Township 18 North, Range 3 East, Clay Township, Hamilton County, Indiana.
The stormwater runoff will be routed to two (2) existing wet BMP detention basins to meet the
Water Quality Requirements described in Chapter 700 of the Stormwater Manual. Additionally,
BMP sump structures with snout Oil and Debris Guards will be installed to pretreat runoff prior to
entering the ponds.
This O&M manual is for the inspection and maintenance of the BMP sump structures with snout
Oil and Debris Guards and stormwater infrastructures associated with Waterfront of West Clay
Section 5B. Refer to Figure 2. Pond maintenance requirements and activities have been covered in
previous Waterfront of West Clay O&M Manuals.
Site Information
Deed of Record:
Refer to Recorded Plat for Waterfront of West Clay Section 5B
Owner:
Waterfront Homes
11731 Cold Creek Court
Zionsville, IN 46077
BMP Owner Contact Information:
Waterfront of West Clay Homeowner Association, Inc.
11731 Cold Creek Court
Zionsville, IN 46077
Telephone (317) 714-2406
Contact: Paul Shoopman
DEFINITIONS
Definitions
BMP:
Best Management Practices refer to structural or non-structural measures designed for the
benefit of water quality and quantity.
BMP Owner:
The owner of the BMPs is typically the Homeowner Association. The BMP owner may
also be the lessee of the property in the case of long-term leases of commercial and
industrial zoned properties. The lessee is considered the BMP owner only if the lease
specifically states that construction by the lessee must meet applicable local codes and
regulations.
Wet Detention Basin:
A Wet Detention Basin is a facility, which removes sediment, biochemical oxygen demand
(BOD), organic nutrients, and trace metals from stormwater runoff. This is accomplished by
slowing down stormwater using an in-line permanent pool or pond affection settling
pollutants. The wet pond is similar to a dry pond, except that a permanent volume of water
is incorporated into the design. The drainage area should be such that as adequate base flow
is maintained in the pond. Biological processes occurring in the permanent pond pool aid in
reducing the amount of soluble nutrients present in the water such as nitrate and ortho-
phosphorus.
Best Management Practice (BMP)
Urban stormwater runoff contains many types and forms of pollutants. When compared to
stormwater run-off from pre-developed conditions, high concentrations of some contaminants that
are not naturally present in surface runoff from undeveloped local lands are found. Runoff from
undeveloped watersheds contains metals, nutrients, sediment particles, oxygen-demanding
compounds, and other constituents. Once developed, constituent loads increase because surface
runoff volumes increase and the sources of many of these pollutants also increase. Supplemental
applications of compounds, such as fertilizers, also tend to increase the availability of some
pollutants to stormwater runoff.
Runoff water quality in urban areas can be extremely detrimental to local habitat. Paved surfaces
and standing water bodies for stormwater management control elevate the temperature of water
entering streams. Chemicals in standing water and ponds are oxidized, resulting in depressed levels
of dissolved oxygen. Increased runoff volumes and rates create scour and deposition damage to
instream habitat. Activities in urbanized areas, such as vehicular traffic, deposit pollutants such as
heavy metals and oil & grease on paved surfaces where they easily wash off into the streams.
Best management practices (BMPs), both structural and non-structural, can reduce the amount of
pollutants in stormwater.
Stormwater Infrastructure:
Storm water infrastructure and structures refers to structural or non-structural measures designed for
the benefit of storm water conveyance. Storm water is the rainfall/ snowmelt that flows over our
yards, streets, parking lots, and buildings and either enters the storm drain system or runs directly
into a lake or stream.
Owners of storm water infrastructure and structures are typically the property owner. The storm
water infrastructure owner may also be the lessee of the property in the case of long-term leases of
commercial and industrial zoned properties. The lessee is considered the owner only if the lease
specifically states that construction by the lessee must meet applicable local codes and regulations
Catch basins:
Catch basin/inlet cleaning and repair has traditionally been performed to respond to localized
flooding problems in streets. Catch basins are inlets at the curb with a small trap (usually six inches
to one foot deep) below the sewer pipe. These devices help to clean storm water because particles in
street runoff settle into the trap before the water enters the storm sewers. Catch basins require
regular cleaning of the sediment trap to be. The inlets do not trap sediments and don’t need cleaning
unless they are plugged. Cleaning for either catch basins or inlets can be done by hand (e.g., with a
clamshell or shovel) or with a vacuum truck.
Conveyance Storm Pipes:
A good rule of thumb is to conduct inspection of storm drain inlets, ditches, channels, ponds and
other treatment facilities at least once a year, prior to the beginning of the rainy season. Complete
inspections early enough so that repairs can be made during dry weather. Catch basins should be
inspected at least once every six months. Some storm water treatment devices, such as oil/water
separators, may require more frequent inspection. For these, check the manufacturer’s specification
or other design guidance handbooks. Sewer pipes and culverts should be inspected every three to
five years, or in response to a reported problem. Most agencies inspect their sewer pipes six inches
or larger with a TV camera, and pipes 36 inches or larger with a walk-through inspection. All other
parts of the system are inspected visually.
Look for excessive silt build-up, erosion, unusual algal growth, cracked or collapsed pipes,
misaligned joints, and other signs of problems such as a sheen on the water surface, discolored
water, or an unpleasant odor. Check with product manufacturers or storm water handbooks for
advice on what to look for when inspecting more sophisticated treatment devices such as flow
splitters and diverters. When a problem is noted, take steps to correct the problem, or route this
information immediately to the appropriate individual(s) in your organization who can respond. If
needed, develop a good response plan to ensure quick follow-up in the future.
Sump Structure:
A sump is a standard catch basin or manhole constructed with part of the structure located below
the outlet, creating a permanent pool of water in the bottom of the structure. The sumps allow for
sediment and debris to settle out of the water flowing through the structures. Catch basins and
manholes are not made for pretreatment of storm water; however, they can potentially function as
pretreatment structures when the bottom of the structure is significantly below the invert of the
outlet pipe. Similar to the proprietary hydrodynamic devices, standard catch basins and manholes
with deep sumps have a smaller footprint than an underground storage structure. Sumps are
generally less expensive and more readily available than the hydrodynamic separators.
Snout Guard:
This is the most basic application. This system combines a sumped catch basin with a hood. It is
useful for capturing trash and floatables, and modest levels of free oils, and sediment. These
structures can be inlet-only, or in-line with other structures. To increase oil retention, oil absorbent
booms can be placed in the structure. This application has limitations based primarily on the
volume and sump depth of the structure itself. To minimize resuspension of finer captured solids, a
deep sump with a minimum depth of 4 feet, or a depth equal to 3 times the outlet pipe inside
diameter is recommended.
Inspections
The first inspection shall be performed immediately after construction is completed. If any
deficiencies are found during the inspection, these should be addressed in a timely manner.
The submittal of annual inspection reports to the City of Carmel Engineering Department is
required. 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.
Construction Completion Type of Inspection Inspection Due Date Subsequent Due Dates
Date: Storm Structures 1 year after construction
completion date
Annually, within same month as
initial report
Date: Sump Structure and Snout 1 year after construction
completion date
After every rain event
>1 inch over a 24 hour
period
Annually, within same month as
initial report
Routine inspections are the responsibility of the BMP owner. Maintenance is also the responsibility
of the owner. The BMP owner shall be financially responsible for any maintenance or repairs
required by the City or its representatives during the City’s inspections. The approval maintenance
plan and inspection forms provided with this manual should be used as guidance for performing
maintenance activities. Completed inspection forms must be maintained by the BMP owner and
produced upon request by the City. The City must be notified of any changes in BMP ownership,
major repairs or BMP failure in writing within 30 days. The letter should be addressed to:
City of Carmel
Carmel Engineering Department Storm Water
One Civic Square
Carmel, IN 46032
The City and/or its representatives have the right to enter the property to inspect BMPs. In the event
that the City finds a BMP in need of maintenance or repair, the City will notify the BMP owner of
the necessary maintenance or repairs and give the landowner a timeframe for completing the
maintenance or repairs. If the maintenance or repairs are not completed within the designated
timeframe, the City shall perform the maintenance or repairs and bill the landowner for the actual
costs for the work.
Inspection & Maintenance Activities
Refer to the checklist provided with this manual for operation, maintenance and inspection of BMP
and storm water infrastructure. The checklist is for the use of the BMP owner in performing routine
inspections. The developer/owner is responsible for the cost of maintenance. The BMP owner must
maintain and update the BMP operations and maintenance plan. At a minimum, the operations and
maintenance plan must include, but is not limited to:
1.Visual inspection and removal of debris from all storm structures including the sumped
structures and Snout Guards.
BMP owners 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 sediment out of the treatment
area to mowing grass.
The BMP owner agrees to the maintenance and inspection programs attached with this manual.
Inspections must be documented on the inspection forms included in this Operation and
Maintenance Manual.
A self-monitoring program by the project site owner is required during construction and during a
maintenance schedule of any project described. A trained individual employed or retained by the
project site owner shall prepare and maintain a written evaluation of the project site by the end of
the next business day following each measurable rain event.
Inspection during construction should be after a storm event and at a minimum, one (1) time a
week.
OWNER ACKNOWLEDGEMENT
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 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: Sumped inlets with Snout Guards – Storm structures 38 and 41.
__________________________________ ____________
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
LOCATION MAPS
LOCATION MAP
Date: November 14, 2019FIGURE 1.1
WEIHE weihe.net
Indianapolis, Indiana 46280
10505 N. College Avenue
317 | 846 - 6611E N G I N E E R S
PROJECT LOCATION
WATERFRONT OF WEST CLAY
SECTION 5B
CARMEL, IN
NP = 898.832 YR = 899.05EXISTING PONDTOP OF BANK = 900.1SPILLWAY=899.710 YR = 899.25100 YR = 899.60STONE LAKEDRIVE 66656463626157565554PRAIRIE FALCONDRIVENP = 898.832 YR = 899.05EXISTING PONDTOP OF BANK = 900.1SPILLWAY=899.710 YR = 899.25100 YR = 899.6053676869707172156157158**BLOCK "B"159160161162163164165166167179180181178177176175182183184168169170171172173174185FIGURE 2
WATER QUALITY
LOCATION EXHIBIT
Date: November 14, 2019
WEIHE weihe.net
Indianapolis, Indiana 46280
10505 N. College Avenue
317 | 846 - 6611E N G I N E E R S
WATERFRONT OF WEST CLAY
SECTION 5B
CARMEL, INEX. SUMP STRUCTUREWITH SNOUTEX. WET DETENTION BASINSUMP STRUCTUREWITH SNOUT
CHECKLISTS AND MAINTENANCE
ACTIVITIES
Site Name:
Owner Name:
Owner Address:
Owner Phone Number:
Emergency Phone Number:
Location:
Date:
Time:
Inspector:
Change in ownership since last
inspection?
Maintenance Item Maintenance (1 or 2)* Maintenance is needed: Comments
Trash or debris which is located immediately in
front of the catch basin opening or is blocking
inletting capacity of the basin by more than 10%
Trash or debris (in the basin) that exceeds 60
percent of the sump depth as measured from the
bottom of basin to invert of the lowest pipe into
or out of the basin, but in no case less than a
minimum of six inches clearance from the debris
surface to the invert of the lowest pipe.
Trash or debris in any inlet or outlet pipe
blocking more than 1/3 of its height.
Dead animals or vegetation that could generate
odors that could cause complaints or dangerous
gases (e.g., methane).
Sediment Sediment (in the basin) that exceeds 60 percent
of the sump depth as measured from the bottom
of basin to invert of the lowest pipe into or out of
the basin, but in no case less than a minimum of
6 inches clearance from the sediment surface to
the invert of the lowest pipe.
Top slab has holes larger than 2 square inches or
cracks wider than 1/4 inch (Intent is to make sure
no material is running into basin).
Frame not sitting flush on top slab, i.e.,
separation of more than 3/4 inch of the frame
from the top slab. Frame not securely attached
Maintenance person judges that structure is
unsound.
Grout fillet has separated or cracked wider than
1/2 inch and longer than 1 foot at the joint of any
inlet/outlet pipe or any evidence of soil particles
entering catch basin through cracks.
Settlement/Misalignment If failure of basin has created a safety, function,
or design problem.
Vegetation growing across and blocking more
than 10% of the basin opening.
Vegetation growing in inlet/outlet pipe joints
that is more than six inches tall and less than six
inches apart.
Contaminants and Pollution Any evidence of oil, gasoline, contaminants or
other pollutants (Coordinate removal/cleanup
with local water quality response agency).
Inspection and Maintenance Checklist
Catch Basins, Manholes, and Inlets
Vegetation
Fractures or Cracks in Basin
Walls/Bottom
Structure Damage to Frame and/or
Top Slab
Trash & Debris
Y OR N
Cover is missing or only partially in place. Any
open catch basin requires maintenance.
Mechanism cannot be opened by one
maintenance person with proper tools. Bolts into
frame have less than 1/2 inch of thread.
One maintenance person cannot remove lid after
applying normal lifting pressure (Intent is to
keep cover from sealing off access to
maintenance).
Ladder Ladder is unsafe due to missing rungs, not
securely attached to basin wall, misalignment,
rust, cracks, or sharp edges.
Metal Grates Trash and debris that is blocking more than 20%
of grate surface inletting capacity.
*Maintenance: Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.
Catch Basin Cover
Site Name:
Owner Name:
Owner Address:
Owner Phone Number:
Emergency Phone Number:
Location:
Date:
Time:
Inspector:
Change in ownership since
last inspection?
Maintenance Item Maintenance (1 or 2)* Maintenance is needed: Comments
Sediment & Debris Accumulated sediment exceeds buildup 1/4" of the
pipe diameter up to maximum of 6"
Vegetation Vegetation that reduces free movement of water
through the pipes
Protective coating is damaged; rust is causing more
than 50% deterioration to any part of the pipe
Any dent that decreases the cross section area of pipe
by more than 20% or puncture that impacts
performance
*Maintenance: Enter 1 if maintenance is need and include WO#. Enter 2 if maintenance was performed same day.
Inspection and Maintenance Checklist
Y OR N
Damaged Pipe
Conveyance Stormwater Pipe
1" PV C ANTI-SIPHON
PIPE ADAPTER� 10.00"
r REMOVABLE WATERTIGHT
ACCESS PORT, 10" OPENING
2.00"
024.00"
i--1-------26.00" ----------i[
�-----30.00" _____ _-i
FRONT
PLAN
DESIGNED TO FIT
48"-60" DIAM. STRUCTURES
FOR STRUCTURE 41
12.00"
20.00"
16.00"
34.00"
I �15.00"�
� 18 .00"----1
SIDE
18.00"
U.S.PATENT #6126817ADDITIONAL PATENTS PENDING
BMP, INC.
53 MT. ARCHER ROAD, LYME, CT. 06371
(800)504-8008 FAX: (860)434-3195
DESCRIPTION DATE SCALE
24R SNOUT OIL 09/13/99 NONE
& DEBRIS STOP DRAWINGNUMBER
24R
1" PVC ANTI-SIPHON
PIPE ADAPTER
39 .00"
I .
R16.00"
R18.00"
2.00"
10.00"
32.00"
36.00"
FRONT
0
PLAN
DESIGNED TO FIT
60"-72" DIAM.
STRUCTURES
. I
REMOVABLE WATERTIGHT
ACCESS PORT, 10" OPENING
R15.00"
15.00"
41 .00"
24.00"
t=6.00"
18.00"
22.25"
SIDE
4.25"
• I
22.25"
18.00"
U.S.PATENT #6126817 ADDITIONAL PATENTS PENDING
BMP, INC.
53 MT. ARCHER ROAD, LYME, CT. 06371
(800)504-8008 FAX: (860)434-3195
DESCRIPTION DATE SCALE
30R SNOUT 01 L i--10_10_41_99__.__NO_N _E
---1
& DEBRIS STOP DRAWING NUMBER 30R FOR STRUCTURE 38