SW3091101_Recorded O&M_20231122

Project Name : CAMBRIDGE VILLAGE MULTIFAMILY
Project Location : Cresset Dellinger and N. Pilot Knob Rd.
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).
INPUT ADDITIONAL DATA ON INDIVIDUAL O&M
The SCM(s) on this project include (check all that apply & co sporidiing O&M sheets will be added automatically): PLAN SHEETS IF REQUIRED
Infiltration Basin Quantity: Location(s):
Infiltration Trendy Quantity: Location(s):
Bioretention Cell Quantity: Location(s):
Wet Pond Quantity: 2 Location(s): NE and SW Comers of the site ADDITIONAL DATA REQUIRED
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: Yes Location(s): French Drain - Buildinal 7 and parkina lot ADDITIONAL DATA REQUIRED
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: Tadd M. Millar
Title & Organization: Mn r. of 1111nor. of Mane er, Cambd a Commons NoWings, LLC
Street address: 460 Virginia Avenue
City, state, zip: "lndii= nQ§jMoM2O3
Phone numEmail: om
Signature: Date: Z ' Zs ' Z2
I , � � ewJ ,1 , a Notary loll' or the State of �IJD1 lrrwlA
County of t,v lArtaOrJ �f do hereby certify that 1 Ar O M . Mkt C&L
personally appeared before me this f, day of V:;� fi4L4^ #P*J r Z.CZ and
acknowledge the due execution of the rati ainte a Agr ment
Witness my hand and official
KRISTIN D. SMITH
Notary Public, State of Indiana
Johns n County
a Commissio #' NP0719286
e` My Comm i sicn Exppires
March 19, 2027
Seal My commission expires ' 19 ' Z�
l� °! BK 3205 PG 749 - 754 ( 6 )
J Picked up Kim Seagle This document presented and filed :
10/24/2022 09 : 52 - 24 AM
AGREEMENT
Fee $ 26 . 00 Transfer Tax : $ 0 . 00
659453 111111111111111111111111
Lincoln County North Carolina
Danny R . Hester , Register of Deeds
STORM-EZ
Version 1 .5 O&M Agreement age I of 1
g Page 1 of 1

BK 3205 PG 750 DOC# 659453
Important operation and maintenance procedures :
Immediately after the wet detention basin is established , the plants on the vegetated shelf and
- perimeter of the basin should be watered twice weekly if needed , until the plants become
established ( commonly six weeks ) .
_ No portion of the wet pond should be fertilized after the initial fertilization that is required to establish
the plants on the vegetated shelf.
_ Stable groundcover will be maintained in the drainage area to reduce the sediment load to the wet
pond .
_ If the pond must be drained for an emergency or to perform maintenance , the flushing of sediment
through the emergency drain will be minimized as much as possible .
_ At least once annually , a dam safety expert will inspect the embankment. Any problems that are
found will be repaired immediately.
_ The measuring device used to determine the sediment elevation shall be such that it will give an
accurate depth reading and not readily penetrate into accumulated sediments .
After the wet pond 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 wet pond Trash/debris is present . Remove the trash/debris .
The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to remove the gully , plant ground
pond erosive gullies have cover and water until it is established . Provide lime and a one-
formed . time fertilizer application .
The inlet pipe is clogged Unclog the pipe . Dispose of the sediment off-site .
( if applicable ) .
The inlet pipe is cracked
or otherwise damaged ( if Repair or replace the pipe .
The inlet device applicable ) .
is occurring in the Regrade the swale if necessary and provide erosion control
Erosion
Erosi applicable ) . devices such as reinforced turf matting or riprap to avoid future
swalproblems with erosion .
Sediment has
accumulated to a depth Search for the source of the sediment and remedy the problem
greater than the original if possible . Remove the sediment and dispose of it in a
design depth for sediment location where it will not cause impacts to streams or the SCM .
storage .
The forebay
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 .
L
SCM element : jPotential problem : How to remediate the problem :

BK 3205 PG 751 DOC# 659453
Sediment has
accumulated to a depth Search for the source of the sediment and remedy the problem
greater than the original if possible . Remove the sediment and dispose of it in a
design sediment storage location where it will not cause impacts to streams or the SCM .
depth .
The main treatment area Algal growth covers over Consult a professional to remove and control the algal growth .
50 % of the area . p g
Cattails , phragmites or
other invasive plants Remove the plants by wiping them with pesticide (do not
cover 50 % of the basin spray) .
surface .
Best professional
practices show that
pruning is needed to Prune according to best professional practices .
maintain optimal plant
health .
The vegetated shelf Determine the source of the problem : soils , hydrology ,
Plants are dead , diseased disease , etc . Remedy the problem and replace plants .
or dying . Provide a one-time fertilizer application to establish the ground
cover if a soil test indicates it is necessary.
Weeds are present . Remove the weeds , preferably by hand . If pesticide is used ,
wipe it on the plants rather than spraying .
Shrubs have started to Remove shrubs immediately .
grow on the embankment .
Evidence of muskrat or Consult a professional to remove muskrats or beavers and
beaver activity is present . repair any holes or erosion .
The embankment A tree has started to grow Consult a dam safety specialist to remove the tree .
on the embankment .
An annual inspection by
an appropriate
professional shows that Make all needed repairs immediately .
the embankment needs
repair.
Clogging has occurred . Clean out the outlet device and dispose of any sediment in a
The outlet device location where it will not cause impacts to streams or the SCM .
The outlet device is Repair or replace the outlet device .
damaged .
Weeds or volunteer trees Remove the weeds or trees .
are growing on the mat .
Floating wetland island
( if applicable ) The anchor cable is
damaged , disconnected or Restore the anchor cable to its design state .
missing .
SCM element : Potential problem : How to remediate the problem :
Erosion or other signs of
damage have occurred at Repair the damage and improve the flow dissipation structure ,
the outlet .

BK 3205 PG 752 DOC# 659453
The receiving water Discharges from the wet
pond are causing erosion Contact the local NCDEQ Regional Office .
or sedimentation in the
receiving water.

BK 3205 PG 753 DOC# 659453
ling
Wet Pond Diagram
WET POND ID FOREBAY MAIN POND
1 Permanent Pool El . 787. 5 Permanent Pool El . 787.5
Temporary Pool El : 788.5 Temporary Pool El : 788. 5
Pretreatment other Clean Out Depth : 3. 5 Clean Out Depth : 5 . 5
than forebay? NO Sediment Removal E 784 Sediment Removal E 782
Has Veg . Filter? No Bottom Elevation : 783 Bottom Elevation : 781
WET POND ID FOREBAY MAIN POND
2 Permanent Pool EI , 777 Permanent Pool EI , 777
Temporary Pool El : 778 .3 Temporary Pool El : 778.3
Pretreatment other Clean Out Depth : 4 Clean Out Depth : 7
than forebay? NO Sediment Removal E 773 Sediment Removal E 770
Has Veg . Filter? Bottom Elevation : 772 Bottom Elevation : 769
ATTACH ADDITIONAL SHEETS IF NECESSARY

BK 3205 PG 754 DOC# 659453
Section 1
Important operation and maintenance procedures :
- The french drain system is defined as the pipes and stormwater inlet passively collecting and Add/Delete Row
- transmitting- Jtransmltting drainage from Building 7 and the parking lot to the wet pond .
Inspect opering on pipe to ensure free flow of drainage from building and parking lot.
Regularly fegularly clean the pipes and drain inlet by manually removing debris.
- Inspect stormwater inlet drain and surrounding area to assess base flow.
The system will be inspected at least quarterly. Records of operation and maintenance will be kept in a known set
location and will be available upon request.
Section 2
Inspection activities shall be performed as follows . Any problems that are found shall be repaired immediately.
SCM element : Potentialproblem : How to remediate theproblem :
French drain system Base flow too high . Evaluate flow impact to wet pond SCM ; if base flow prevents Add/Delete Row
temporary pool elevation from returning to the permanent pool
elevation with 5 days , remediate as needed .
Drain inlet/outlet pipes Pipes are clogged , Unclog the pipe , Dispose of the sediment off-site .
Stonnwater inlet drain Sediment/debris in inlet . Remove the sediment/debris . Dispose of the sediment off-site .