07 Cornelius Monthly SCM Checklist

Structural Stormwater Control Measures Monthly Checklist
1

Operation and Maintenance Program for Wet Pond April 2021
Name of Project: Westmoreland Athletic Complex
Address: 8430 Westmoreland Road
Number of Stormwater Control Measures: 1
Responsible Party: Town of Cornelius
Address of Responsible Party: PO Box 399 Cornelius, NC 28031
Task Schedule Notes
Forebay inspection and
cleanout
Monthly inspection. Remove sediment
every 7 years or whenever the sediment
volume exceeds 50% of storage volume
Removed sediment from
Forebays in June 2020
Volume measurement Yearly – Dredging needed every 20 years
or when 25% of permanent pool volume
has been lost
Completed measurement
5/18/2020 277,153
gallons at mean level
Bank mowing and
inspection/stabilization of
eroded areas
Monthly Inspected
Outlet/inlet inspection and
cleanout
Monthly Inspected
Unwanted vegetation and
trash removal
Monthly Completed
Visual inspection of water
quality
Monthly Inspected
Inspect / exercise all
mechanical devices, valves,
etc.
Yearly Completed this month
Inspect for structural
damage, leaks, etc.
Yearly Completed
Rodent management As needed N/A
Security As needed N/A
See Foster Lake and Pond Management
Report
Attached

Structural Stormwater Control Measures Monthly Checklist
2

Operation and Maintenance Program for Dry Pond
Name of Project: Westmoreland Athletic Complex
Address: 8430 Westmoreland Road
Number of Stormwater Control Measures: 1
Responsible Party: Town of Cornelius
Address of Responsible Party: PO Box 399 Cornelius, NC 28031
Task Schedule NOTES
Forebay inspection and
cleanout
Monthly inspection. Remove sediment
every 7 years or when sediment volume
exceeds 50% of storage volume
Sediment removed in June
2020
Bank mowing and
inspection / stabilization
of eroded areas
Monthly (maintain 3 to 6-inch grass
height)
Inspected
Outlet / inlet inspection
and cleanout
Monthly Inspected
Unwanted vegetation and
trash removal
Monthly Trash removed
Inspect for structural
damage, leaks, etc.
Yearly Completed
Inspect / exercise all
mechanical devices,
valves, etc.
Yearly N/A
Evaluate sediment level
(remove as needed)
Yearly Removed June 2020
Security As needed N/A
Structural Stormwater Control Measures Monthly Checklist
3

Operation and Maintenance Program for Bioretention
Name of Project: Westmoreland Athletic Complex
Address: 8430 Westmoreland Road
Number of Stormwater Control Measures: 2
Responsible Party: Town of Cornelius
Address of Responsible Party: PO Box 399 Cornelius, NC 28031
Task Schedule Notes
Inspect banks and surrounding drainage areas
for erosion and stabilize if necessary.
Monthly Inspected
Inspect/Clean Inlets (sediment in pipe, damaged
pipe, blockage or erosion)
Monthly Inspected
Inspect/Clean Outlet (blockage, bypass, erosion
or damaged)
Monthly Inspected
Perimeter mowing (3 to 6-inch grass height) Monthly Inspected
Inspect for proper drawdown / clogging Monthly Inspected
Trash removal Monthly Completed
Pruning Yearly N/A
Mulch renewal Yearly N/A
Mulch replacement Every 3 years N/A
Inspect plants, replace as necessary Monthly N/A
Test Phosphorus Index of soil media and
replace if over 50
Every 2 years Bio1 P value- 19
Bio2 P value- 28
05/29/2020
Replace pea gravel diaphragm As needed N/A
Remove sediment or other organic material As needed N/A
Grassed Bioretention Cells only
Mow basin to recommended height in
alternating patterns to prevent compaction
Weekly to bi-weekly
during the growing
season, as needed other
times
Inspected
Light fertilizing to establish healthy roots Only during the first 2
years
Inspected
Aerate and dethatch basin floor Every 2 years Inspected