Erosion and Sediment Control
Schedule A | ||
|---|---|---|
Stormwater Management Practices Acceptable For Water Quality (From: New York State Stormwater Management Design Manual, Table 5.1) | ||
Group | Practice | Description |
Pond | Micropool extended detention pond (P-1) | Pond that treats the majority of the water quality volume through extended detention, and incorporates a micropool at the outlet of the pond to prevent sediment resuspension. |
Wet pond (P-2) | Pond that provides storage for the entire water quality volume in the permanent pool. | |
Wet extended detention pond (P-3) | Pond that treats a portion of the water quality volume by detaining storm flow above a permanent pool for a specified minimum detention time. | |
Multiple pond system (P-4) | A group of ponds that collectively treat the water quality volume. | |
Pocket pond (P-5) | A stormwater wetland design adapted for the treatment of runoff from small drainage areas that has little or no baseflow available to maintain water elevations and relies on groundwater to maintain a permanent pool. | |
Wetland | Shallow wetland (W-1) | A wetland that provides water quality treatment entirely in a shallow marsh. |
Extended detention wetland (W-2) | A wetland system that provides some fraction of the water quality volume by detaining storm flows above the marsh surface. | |
Pond/wetland system (W-3) | A wetland system that provides a portion of the water quality volume in the permanent pool of a wet pond that precedes the marsh for a specified minimum detention time. | |
Pocket wetland (W-4) | A shallow wetland design adapted for the treatment of runoff from small drain areas that has variable water levels and relies on groundwater for its permanent pool. | |
Infiltration | Infiltration trench (I-1) | An infiltration practice that stores the water quality volume in the void spaces of a gravel trench before it is infiltrated into the ground. |
Infiltration basin (I-2) | An infiltration practice that stores the water quality volume in a shallow depression before it is infiltrated into the ground. | |
Dry well (I-3) | An infiltration practice similar in design to the infiltration trench, and best suited for treatment of rooftop runoff. | |
Filtering Practices | Surface sand filter (F-1) | A filtering practice that treats stormwater by settling out larger particles in a sediment chamber, and then filtering stormwater through a sand matrix. |
Underground sand filter (F-2) | A filtering practice that treats stormwater as it flows through underground settling and filtering chambers. | |
Perimeter sand filter (F-3) | A filter that incorporates a sediment chamber and filter bed as parallel vaults adjacent to a parking lot. | |
Organic filter (F-4) | A filtering practice that uses an organic medium such as compost in the filter in place of sand. | |
Bioretention (F-5) | A shallow depression that treats stormwater as it flows through a soil matrix, and is returned to the storm drain system. | |
Open Channels | Dry swale (O-1) | An open drainage channel or depression explicitly designed to detain and promote the filtration of stormwater runoff into the soil media. |
Wet swale (O-2) | An open drainage channel or depression designed to retain water or intercept groundwater for water quality treatment. | |
Erosion and Sediment Control
Schedule A | ||
|---|---|---|
Stormwater Management Practices Acceptable For Water Quality (From: New York State Stormwater Management Design Manual, Table 5.1) | ||
Group | Practice | Description |
Pond | Micropool extended detention pond (P-1) | Pond that treats the majority of the water quality volume through extended detention, and incorporates a micropool at the outlet of the pond to prevent sediment resuspension. |
Wet pond (P-2) | Pond that provides storage for the entire water quality volume in the permanent pool. | |
Wet extended detention pond (P-3) | Pond that treats a portion of the water quality volume by detaining storm flow above a permanent pool for a specified minimum detention time. | |
Multiple pond system (P-4) | A group of ponds that collectively treat the water quality volume. | |
Pocket pond (P-5) | A stormwater wetland design adapted for the treatment of runoff from small drainage areas that has little or no baseflow available to maintain water elevations and relies on groundwater to maintain a permanent pool. | |
Wetland | Shallow wetland (W-1) | A wetland that provides water quality treatment entirely in a shallow marsh. |
Extended detention wetland (W-2) | A wetland system that provides some fraction of the water quality volume by detaining storm flows above the marsh surface. | |
Pond/wetland system (W-3) | A wetland system that provides a portion of the water quality volume in the permanent pool of a wet pond that precedes the marsh for a specified minimum detention time. | |
Pocket wetland (W-4) | A shallow wetland design adapted for the treatment of runoff from small drain areas that has variable water levels and relies on groundwater for its permanent pool. | |
Infiltration | Infiltration trench (I-1) | An infiltration practice that stores the water quality volume in the void spaces of a gravel trench before it is infiltrated into the ground. |
Infiltration basin (I-2) | An infiltration practice that stores the water quality volume in a shallow depression before it is infiltrated into the ground. | |
Dry well (I-3) | An infiltration practice similar in design to the infiltration trench, and best suited for treatment of rooftop runoff. | |
Filtering Practices | Surface sand filter (F-1) | A filtering practice that treats stormwater by settling out larger particles in a sediment chamber, and then filtering stormwater through a sand matrix. |
Underground sand filter (F-2) | A filtering practice that treats stormwater as it flows through underground settling and filtering chambers. | |
Perimeter sand filter (F-3) | A filter that incorporates a sediment chamber and filter bed as parallel vaults adjacent to a parking lot. | |
Organic filter (F-4) | A filtering practice that uses an organic medium such as compost in the filter in place of sand. | |
Bioretention (F-5) | A shallow depression that treats stormwater as it flows through a soil matrix, and is returned to the storm drain system. | |
Open Channels | Dry swale (O-1) | An open drainage channel or depression explicitly designed to detain and promote the filtration of stormwater runoff into the soil media. |
Wet swale (O-2) | An open drainage channel or depression designed to retain water or intercept groundwater for water quality treatment. | |