SW3240304_O&M Agreement/Plan_20240311

Operation & Maintenance Agreement
Project Name: Waffle House - Lowesville, NC
Project Location: East of 7405 NC-73, Denver, NC 28037
Cover Page
Maintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location
Any deficient SCM elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can
affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the SCM(s).
The SCM(s) on this project include (check all that apply&corresponding O&M sheets will be added automatically):
Infiltration Basin Quantity: Location(s):
Infiltration Trench Quantity: Location(s):
Bioretention Cell Quantity: 1 Location(s): At the western boundary of the site
Wet Pond Quantity: Location(s):
Stormwater Wetland Quantity: Location(s):
Permeable Pavement Quantity: Location(s):
Sand Filter Quantity: Location(s):
Rainwater Harvesting Quantity: Location(s):
Green Roof Quantity: Location(s):
Level Spreader-Filter Strip Quantity: Location(s):
Proprietary System Quantity: Location(s):
Treatment Swale Quantity: Location(s):
Dry Pond Quantity: Location(s):
Disconnected Impervious Surface Present: No Location(s):
User Defined SCM Present: No Location(s):
Low Density Present: No Type:
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for
each SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to
the system or responsible party.
Responsible Party: Property Management
Title & Organization: Property Manager of Waffle House. Inc.
Street address: 5986 Financial Drive
City, state, zip: Norcross. GA 30071
Phone number(s): 770-729-5700
Email: propertymanagementewafflehouse.com
Signature: Date: March 4, 2024
I, BQ, 40L ESk2s , a Notary Public for the State of Georgia
County of Gwinnett , do hereby certify that Erik Haeffs
personally appeared before me this 4th day of March 2024 and
acknowledge the due execution of th _C,erations and IMjintenance Agreement
Witness my Nncj,yyid official seal,
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Version 1.5 O&M Agreement Page 1 of 1

Bioretention Maintenance Requirements
Important operation and maintenance procedures:
Immediately after the bioretention cell is established,the plants will be watered twice weekly if needed until
the plants become established(commonly six weeks).
- Snow,mulch or any other material will NEVER be piled on the surface of the bioretention cell.
- Heavy equipment will NEVER be driven over the bioretention cell.
- Special care will be taken to prevent sediment from entering the bioretention cell.
- Once a year,a soil test of the soil media will be conducted.
Remove top layer of fill media when the pool does not drain quickly. Based on the media specification,the
pool should drain within 24 hours.
After the bioretention cell is established,it will be inspected quarterly and within 24 hours after every storm event greater than
1.0 inches(or 1.5 inches if in a Coastal County.)Records of operation and maintenance shall be kept in a known set location
and shall be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately.
SCM element: Potential problem: How to remediate the problem:
The entire bioretention cell Trash/debris is present. Remove the trash/debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to remove the gully,plant ground cover
bioretention cell erosive gullies have formed, and water until it is established.Provide lime and a one-time fertilizer
application.
The structure is clogged. Unclog the structure and dispose of any sediment off-site.
The flow diversion structure
(if applicable) The structure is damaged. Make any necessary repairs or replace if the damage is too much for
repair.
The inlet pipe is clogged(if Unclog the pipe and dispose of any sediment in a location where it
applicable). will not cause impacts to streams or the SCM.
The inlet pipe is cracked or
otherwise damaged(if Repair or replace the pipe.
applicable).
The inlet device Regrade the swale if necessary and provide erosion control devices
Erosion is occurring in the such as reinforced turf matting or riprap to avoid future erosion
swale(if applicable).
problems.
Stone verge is clogged or
covered in sediment(if Remove sediment and clogged stone and replace with clean stone.
applicable).
Flow is bypassing Regrade if necessary to route all flow to the pretreatment area.
pretreatment area and/or
gullies have formed. Restabilize the area after grading.
Sediment has accumulated Search for the source of the sediment and remedy the problem if
to a depth greater than three possible. Remove the sediment and dispose of it in a location where
The pretreatment area inches. it will not cause impacts to streams or the SCM.
Erosion has occurred. Provide additional erosion protection such as reinforced turf matting
or riprap if needed to prevent future erosion problems.
Weeds are present. Remove the weeds,preferably by hand. If pesticide is used,wipe it
on the plants rather than spraying.

Bioretention Maintenance Requirements(continued)
SCM element: Potential problem: How to remediate the problem:
Best professional practices
show that pruning is needed Prune according to best professional practices.Maintain lines of sight
to maintain optimal plant between 2'-6'.
health.
Determine the source of the problem: soils,hydrology,disease,etc.
Plants are dead,diseased or Remedy the problem and replace plants. Provide a one-time fertilizer
application to establish the ground cover if a soil test indicates it is
Bioretention cell vegetation dying.
necessary. If sod was used,check to see that it was not grown on
clay or impermeable soils. Replace sod if necessary.
Weeds are present. Remove the weeds,preferably by hand. If pesticide is used,wipe it
on the plants rather than spraying.
Tree stakes/wires are
present six months after Remove tree stake/wires(which can kill the tree if not removed),
planting.
Spot mulch if there are only random void areas. Replace whole
Mulch is breaking down or mulch layer if necessary. Remove the remaining mulch and replace
has floated away. with triple shredded hard wood mulch at a maximum depth of four
inches.
Determine the extent of the clogging-remove and replace either just
Soils and/or mulch are the top layers or the entire media as needed.Dispose of the spoil in
Bioretention cell mulch and an appropriate off-site location. Use triple shredded hard wood
media clogged with sediment. mulch at a maximum depth of four inches.Search for the source of
the sediment and remedy the problem if possible.
An annual soil test shows Dolomitic lime shall be applied as recommended per the soil test
that pH has dropped or heavy and toxic soils shall be removed,disposed of properly and replaced
metals have accumulated in
the soil media. with new planting media.
Clogging has occurred. Wash out the underdrain system.
The underdrain,filter fabric Clogging has occurred. Clean out the drop inlet. Dispose of the sediment in a location where
element,and outlet system it will not cause impacts to streams or the SCM..
The drop inlet is damaged Repair or replace the drop inlet.
Erosion or other signs of
damage have occurred at the Repair the damage and improve the flow dissipation structure.
outlet.
The receiving water Discharges from the
Bioretention cell are causing Contact the local NCDEQ Regional Office.
erosion or sedimentation in
the receiving water.