Bexar County is seeking competitive bids for Countywide Stormwater Pond Maintenance services on an as needed basis. Inspection and Installation Guidelines; Ensure that the surface of the sand filter bed is level. Determine if a vegetative cover has been established on the surface of the sand filter bed. Remove trash or debris accumulating within the sand filter bed. Remove sediment when it reaches a depth of 6 inches. Ensure that any sediment removed from sediment basins is being stockpiled or redistributed to an area that is protected from erosion. Ensure that underground pipe is accessible for cleaning purposes. Check to see if the sand exhibits discoloration or clogging. Repair areas that exhibit any signs of damage to structural components (pipes, concrete drainage structures, retaining walls, etc.). Mow vegetative cover of the filter bed to a height of 4 to 6 inches. Maintenance Guidelines; Reseed, mow, and irrigate vegetation. Remove trash, debris, and sediment. Replace sand every 3 to 5 years. Repair structural components as necessary.
