13 2026 02 12 Crestmont CC Stormwater O and M Manual

rated to meet heavy-duty H-20 traffic loading requirements. Precast storm manhole structures and inlet box sizes are to be sized to accommodate the largest proposed pipe connections, and polypropylene steps shall be provided for maintenance access. Precast concrete headwalls are proposed at the outfall pipe to Small-Scale Bioretention Basin 1 (SSBB-1) and at an outfall pipe to Small-Scale Bioretention Basin 2 (SSBB-2). Precast concrete outlet control structures are proposed at the small-scale bioretention basins and the porous asphalt pavement system. 5.0 INSPECTION AND MAINTENANCE PROCEDURES The owner is responsible for maintenance identified in the maintenance manual and shall maintain a detailed log of all preventative and corrective maintenance for the structural stormwater system measures incorporated into the design of the development, including a record of all inspections and copies of all maintenance-related work orders. The owner is to evaluate the effectiveness of the maintenance plan at least once per year and adjust the plan as needed. Maintenance and inspection access to all proposed stormwater BMPs shall be maintained at all times. All components of the stormwater management measures must be readily accessible; trees, shrubs, and ornamental grasses must be pruned or trimmed as necessary to maintain access, and areas adjacent to these BMPs shall be made clear during scheduled maintenance activities to allow for ease of access for maintenance vehicles. 5.1 Preventative Maintenance Measures The frequency and type of preventative maintenance prescribed is adopted from the New Jersey Best Management Practices Manual. 5.1.1 Conveyance Networks The conveyance systems, including inlets, manholes, and pipes are expected to receive and/or accumulate debris and sediment. These systems shall be inspected for clogging and sediment accumulation at least bi-annually, and shall be inspected for trash and debris removal at least quarterly, and may require cleaning to prevent the loss of discharge capacity storage volume. Sediment removal should take place when all runoff has drained from the pipe networks and the systems are reasonably dry. Disposal of debris, trash, sediment, and other waste material should be done at suitable disposal/recycling sites and in compliance with all applicable local, state, and federal waste regulations.

s, trash, sediment, and other waste material should be done at suitable disposal/recycling sites and in compliance with all applicable local, state, and federal waste regulations. 5