Maintenance Practices
Operation and Maintenance Plan for Wet Detention Facilities
The purpose of detention ponds is the prevention of direct discharge of stormwater runoff to the surrounding receiving waters. The water quality treatment system uses a design water pool in association with water-tolerant vegetation to remove pollutants through settling, absorption of soils, and nutrient uptake by vegetation. To maintain an operational stormwater detention system, Leon County’s Mosquito Control Division will maintain County-owned and County-maintained wet detention ponds according to the following plan:
Mowing, removal of undesirable plants from the littoral zone, and removal of large debris will be conducted three times annually. Grass clippings will NOT be removed.
Slopes will be inspected annually and repaired as needed.
Structures will be inspected annually and repaired as needed.
Sediment will be removed from the pond as needed following annual inspection.
Complaints will be investigated as needed and necessary corrective action scheduled.
Operation and Maintenance Plan for Retention Ponds
The purpose of retention ponds is the prevention of direct discharge of stormwater runoff into the surrounding receiving waters. Examples are systems that discharge through percolation, exfiltration and evaporation processes and that usually have residence time of less than three days. To maintain an operational stormwater retention system, Leon County’s Mosquito Control Division will maintain County-owned and County-maintained retention ponds according to the following plan:
Mowing and removal of large debris will be conducted three times annually. Grass clippings will NOT be removed.
Slopes will be inspected annually and repaired as needed.
Structures will be inspected annually and repaired as needed.
Sediment will be removed from the pond as needed following annual inspection.
Maintenance of the pond bottom to improve percolation will be done as needed following annual inspection.
Complaints will be investigated as needed and necessary corrective action scheduled.
Operation and Maintenance Plan for Filter Ponds
Filter ponds are retention or detention ponds which have filter facilities that require special maintenance. Leon County’s Mosquito Control Division will maintain County-owned and County-maintained filter ponds according to the following plan:
Mowing and large debris removal will be conducted three times annually. Grass clippings will NOT be removed.
Slopes will be inspected for erosion and repaired annually.
Structures and pond bottom will be inspected and repaired annually.
Sediment will be removed from the pond as needed.
The sand filter will be inspected annually.
The top six inches of the filter will be cleared as needed.
The filter will be replaced as needed.
Complaints will be investigated as needed and necessary corrective action scheduled.
Operation of Maintenance Plan for Swale Ditches with Swale Blocks
The purpose of swale ditches with swale blocks is to prevent roadside ditch erosion from sedimenting the surrounding receiving waters due to stormwater runoff. In addition, the roadside swales are grassed to provide water quality treatment. To maintain an operational roadside stormwater system, Leon County’s Operations Division will maintain swale ditches with swale blocks along County roads and County-maintained road according to the following plan:
Mowing and removal of large debris will be conducted three times annually. Grass clippings will NOT be removed.
Erosion of slopes will be inspected annually and repaired as needed.
Sediment buildup resulting from swale blocks will be removed as needed following annual inspections of swale block integrity.
Swales with undermined swale blocks will be reshaped and the swale blocks reconstructed as needed following annual inspections.
Complaints will be investigated as needed and necessary corrective action scheduled.