Was designed to standards that have become outdated compared to modern Act 167 and the Department of Environmental Protection model stormwater ordinances.
The Canterbury Estates Water Quality Basin project involves the modification of the existing detention basin outlet structure to improve the facility’s ability to reduce the peak rate of stormwater runoff downstream, increase the stormwater retention volume, and inclusion of water quality enhancement features.
A significant amount of stormwater runoff currently bypasses the stormwater facility and creates flooding conditions downstream.
A secondary earthen berm will be constructed downstream of the existing detention basin to manage stormwater runoff from an expanded drainage area.
The secondary facility will reduce the total sediment, nitrogen, and phosphorus pollutant loads currently being discharged downstream.
Would require a General Permit for Bank Rehabilitation (GP-3) and could be graded from the overbank and stabilized with erosion matting and native vegetation.
Proposed plantings or live staking would be utilized to encourage further stabilization and habitat creation.
The restoration approach at the McCormick Park site would roughly resemble the Concept Rendering shown in Figure 1, only along the left bank of the reach paralleling McCormick Rd.
Additional coordination with DEP outside of the scope of this study is recommended to confirm that this minor bank work would be applicable towards the load reduction requirements of the township’s PRP prior to moving forward.