SW4240703_O&M Agreement/Plan_20240730

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Dry Extended Detention Basin
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP 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 removal efficiency of the BMP.
The dry extended detention basin system is defined as the dry detention basin,outlet
structure,pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
- The drainage area will be managed to reduce the sediment load to the dry
extended detention basin.
- Immediately after the dry extended detention basin is established,the vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- No portion of the dry extended detention pond will be fertilized after the first
initial fertilization that is required to establish the vegetation.
- I will maintain the vegetation in and around the basin at a height of
approximately six inches.
- Once a year,a dam safety expert will inspect the embankment.
After the dry extended detention basin is established,it will be inspected once a quarter
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 will be kept in a known set
location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problem: How I will remediate the problem:
The entire BMP Trash/debris is present. Remove the trash/debris.
The perimeter of the dry Areas of bare soil and/or Regrade the soil if necessary to
extended detention erosive gullies have formed. remove the gully,and then plant a
basin ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Form SW401-Dry Detention O&M-Rev.3 Page 1 of 4

BMP element: Potential problem: How I will remediate the problem:
The inlet device: pipe or The pipe is clogged(if Unclog the pipe. Dispose of the
swale applicable). sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged(if
applicable).
Erosion is occurring in the Regrade the swale if necessary to
swale(if applicable). smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth possible. Remove the sediment and
(see diagram below). dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or Provide additional erosion
riprap is displaced. 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 pesticides are used,wipe
them on the plants rather than
spraying.
The main treatment area Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth possible. Remove the sediment and
(see diagram below). dispose of it in a location where it
will not cause impacts to streams or
the BMP. Revegetate disturbed
areas immediately with sod
(preferred)or seed protected with
securely staked erosion mat.
Water is standing more than Check outlet structure for clogging.
5 days after a storm event. If it is a design issue,consult an
appropriate professional.
Weeds and noxious plants are Remove the plants by hand or by
growing in the main wiping them with pesticide(do not
treatment area. spray).
Form SW401-Dry Detention O&M-Rev.3 Page 2 of 4

BMP element: Potential problem: How I will remediate the problem:
The embankment Shrubs or trees have started Remove shrubs or trees
to grow on the embankment. immediately.
Grass cover is unhealthy or Restore the health of the grass cover
eroding. -consult a professional if necessary.
Signs of seepage on the Consult a professional.
downstream face.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
beavers.
An annual inspection by an Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device Clogging has occurred. Clean out the outlet device. Dispose
of the sediment off-site.
The outlet device is damaged Repair or replace the outlet device.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality 401 Oversight Unit at 919-
outlet. 733-1786.
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.
When the basin depth reads 450.0 feet in the main pond,the sediment shall be removed.
When the basin depth reads 450.0 feet in the forebay,the sediment shall be removed.
BASIN DIAGRAM
Yin in the blanks)
0 Temporary Pool Elevation 455.5
Sediment Removal E 450.0 Te 1pora Pool emporary ooI
olume Sediment Removal Elevation 450.0 Volume
Bottom Elevatio 446.0 25%
Sediment Bottom Elevation 446.0 25% ediment
Storage Storage
FOREBAY MAIN POND
Form SW401-Dry Detention O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Cane Creek Subdivision- Phase 8
BMP drainage area number:1
Print name:James Christopher Reid
Title:Manager at Davidson Land Development. LLC
Address:896 Shiptontown Rd Lexington.NC 27292
Phone: [phone] C.�
Signature: .��� c 1&(A te— jC
Date: 6 ` 0-2-1
Note: The legally responsible party should not be a homeowners association unless more than 50%of
the lots have been sold and a resident of the subdivision has been named the president.
I, CYiSAn UAv�o�n( I6t(Yi►'0S , a Notary Public for the State of
lv fon ca rQ\1 1'1 GI , County of mvtoison , do hereby certify that
krrne c Delytc‘ocko Q.et Gi personally appeared before me this I2
day of -ni Yl e/ , /4-, and acknowledge the due execution of the
forgoing dry detention basin maintenance requirements. Witness my hand and official
seal, j
CRISTIAN LUVIANO BALDOVINO 3
NOTARY PUBLIC
DAVIDSON COUNTY
NORTH CAROLINA
MY COMMISSION EXPIRES NOV 23,2025
SEAL
My commission expires 1VOV '231 1,07-5
Form SW401-Dry Detention O&M-Rev.3 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Dry Extended Detention Basin
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP 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 removal efficiency of the BMP.
The dry extended detention basin system is defined as the dry detention basin,outlet
structure,pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— The drainage area will be managed to reduce the sediment load to the dry
extended detention basin.
— Immediately after the dry extended detention basin is established,the vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— No portion of the dry extended detention pond will be fertilized after the first
initial fertilization that is required to establish the vegetation.
— I will maintain the vegetation in and around the basin at a height of
approximately six inches.
— Once a year, a dam safety expert will inspect the embankment.
After the dry extended detention basin is established,it will be inspected once a quarter
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 will be kept in a known set
location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problem: How I will remediate the problem:
The entire BMP Trash/debris is present. Remove the trash/debris.
The perimeter of the dry Areas of bare soil and/or Regrade the soil if necessary to
extended detention erosive gullies have formed. remove the gully,and then plant a
basin ground cover and water until it is
established. Provide lime and a
one-time fertiliser application.
Form SW401-Dry Detention O&M-Rev.3 Page 1 of 4

BMP element: Potential problem: How I will remediate the problem:
The inlet device: pipe or The pipe is clogged(if Unclog the pipe. Dispose of the
swale applicable). sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged(if
applicable).
Erosion is occurring in the Regrade the swale if necessary to
swale(if applicable). smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth possible. Remove the sediment and
(see diagram below). dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or Provide additional erosion
riprap is displaced. 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 pesticides are used,wipe
them on the plants rather than
spraying.
The main treatment area Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth possible. Remove the sediment and
(see diagram below). dispose of it in a location where it
will not cause impacts to streams or
the BMP. Revegetate disturbed
areas immediately with sod
(preferred)or seed protected with
securely staked erosion mat.
Water is standing more than Check outlet structure for clogging.
5 days after a storm event. If it is a design issue,consult an
appropriate professional.
Weeds and noxious plants are Remove the plants by hand or by
growing in the main wiping them with pesticide(do not
treatment area. spray).
Form SW401-Dry Detention O&M-Rev.3 Page 2 of 4

BMP element: Potential problem: How I will remediate the problem:
The embankment Shrubs or trees have started Remove shrubs or trees
to grow on the embankment. immediately.
Grass cover is unhealthy or Restore the health of the grass cover
eroding. -consult a_professional if necessary.
Signs of seepage on the Consult a professional.
downstream face.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
beavers.
An annual inspection by an Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device Clogging has occurred. Clean out the outlet device. Dispose
of the sediment off-site.
The outlet device is damaged Repair or replace the outlet device.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality 401 Oversight Unit at 919-
outlet. 733-1786.
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.
When the basin depth reads 472.0 feet in the main pond,the sediment shall be removed.
When the basin depth reads 472.0 feet in the forebay,the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
0 Temporary Pool Elevation 476.0
Sediment Removal E 472.0 I Te /pora Pool emporary ool
olume Sediment Removal Elevation 472.00 Volume
Bottom Elevatioi 470.5 25%
Sediment Bottom Elevation 470.5 125% ediment
Storage Storage
FOREBAY MAIN POND
Form SW401-Dry Detention O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Cane Creek Subdivision - Phase 8
BMP drainage area number:2
Print name:James Christopher Reid
Title:Manager at Davidson Land Development. LLC
Address:896 Shiptontown Rd Lexington,NC 27292
Phone: [phone]
Signature: atetitiL�`� LILY
Date: (s- ic9—2y
Note: The legally responsible party should not be a homeowners association unless more than 50%of
the lots have been sold and a resident of the subdivision has been named the president.
I, CA c"V\an Umiton GoitI 6tOVIY I,,,D a Notary Public for the State of
N ors CC'YQ\l hci , County of Ch\id con , do hereby certify that
James Chv 1 s\-opYlei( Qel d personally appeared before me this ,g
day of SVIYTe , 20 -4 , and acknowledge the due execution of the
forgoing dry detention basin intenance requirements. itness my hand and official
�
seal, G
CRISTIAN LUVIANO BALDOVINOS
NOTARY PUBLIC
DAVIDSON COUNTY
NORTH CAROLINA
MY COMMISSION EXPIRES NOV 23,2025
SEAL
My commission expires 1 v PL-3 1 2015
Form SW401-Dry Detention O&M-Rev.3 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Dry Extended Detention Basin
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP 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 removal efficiency of the BMP.
The dry extended detention basin system is defined as the dry detention basin, outlet
structure, pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— The drainage area will be managed to reduce the sediment load to the dry
extended detention basin.
— Immediately after the dry extended detention basin is established,the vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— No portion of the dry extended detention pond will be fertilized after the first
initial fertilization that is required to establish the vegetation.
— I will maintain the vegetation in and around the basin at a height of
approximately six inches.
— Once a year,a dam safety expert will inspect the embankment.
After the dry extended detention basin is established,it will be inspected once a quarter
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 will be kept in a known set
location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problem: How I will remediate the problem:
The entire BMP Trash/debris is present. Remove the trash/debris.
The perimeter of the dry Areas of bare soil and/or Regrade the soil if necessary to
extended detention erosive gullies have formed. remove the gully,and then plant a
basin ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Form S W401-Dry Detention O&M-Rev.3 Page 1 of 4

BMP element: Potential problem: How I will remediate the problem:
The inlet device: pipe or The pipe is clogged(if Unclog the pipe. Dispose of the
swale applicable). sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged(if
applicable).
Erosion is occurring in the Regrade the swale if necessary to
swale(if applicable). smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth possible. Remove the sediment and
(see diagram below). dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or Provide additional erosion
riprap is displaced. 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 pesticides are used,wipe
them on the plants rather than
spraying.
The main treatment area Sediment has accumulated Search for the source of the
and reduced the depth to 75% sediment and remedy the problem if
of the original design depth possible. Remove the sediment and
(see diagram below). dispose of it in a location where it
will not cause impacts to streams or
the BMP. Revegetate disturbed
areas immediately with sod
(preferred)or seed protected with
securely staked erosion mat.
Water is standing more than Check outlet structure for clogging.
5 days after a storm event. If it is a design issue,consult an
appropriate professional.
Weeds and noxious plants are Remove the plants by hand or by
growing in the main wiping them with pesticide(do not
treatment area. spray).
Form SW401-Dry Detention O&M-Rev.3 Page 2 of 4

BMP element: Potential problem: How I will remediate the problem:
The embankment Shrubs or trees have started Remove shrubs or trees
to grow on the embankment. immediately.
Grass cover is unhealthy or Restore the health of the grass cover
eroding. -consult a professional if necessary.
Signs of seepage on the Consult a professional.
downstream face.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
beavers.
An annual inspection by an Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device Clogging has occurred. Clean out the outlet device. Dispose
of the sediment off-site.
The outlet device is damaged Repair or replace the outlet device.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality 401 Oversight Unit at 919-
outlet. 733-1786.
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.
When the basin depth reads 478.0 feet in the main pond,the sediment shall be removed.
When the basin depth reads 478.0 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
0 t Temporary Pool Elevation 482.0
Sediment Removal E 478.0 1 Te pora •Pool emporary ool
olume Sediment Removal Elevation 478.0 Volume
Bottom Elevatiot 475.5 25%
Sediment Bottom Elevation 475.5 t 25% ediment
Storage Storage
FOREBAY MAIN POND
Form SW401-Dry Detention O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Cane Creek Subdivision- Phase 8
BMP drainage area number:3
Print name:James Christopher Reid
Title:Manager at Davidson Land Development. LLC
Address:896 Shiptontown Rd Lexington, NC 27292
Phone: [phone]
Signature: -- ; 4.•u� `' `-_
Date: -—l b-2 )/
Note: The legally responsible party should not be a homeowners association unless more than 50%of
the lots have been sold and a resident of the subdivision has been named the president.
I, CV\ (\ \an LW Imo RciI ttL J RrVc, a Notary Public for the State of
O COIVO1 t n01 , County of Oavi(Aron , do hereby certify that Ibrne c CANCAN (\o+ ' v R-er d personally appeared before me this le
day of SUne ,1 fji4', and acknowledge the due execution of the
forgoing detention basin intenance requirement . Witness my hand and official
seal, (14a0 0
CRISTIAN LUVIANO BALDOVINO6 \I
NOTARY PUBLIC
DAVIDSON COUNTY
NORTH CAROLINA
MY COMMISSION EXPIRES NOV 23,2025
SEAL
My commission expires Wtht\rn0 231 10 2-5
Form SW401-Dry Detention O&M-Rev.3 Page 4 of 4