Obtaining a Stormwater Permit
The Environmental Protection Agency has identified sedimentation from land disturbance activities and polluted runoff from land development and redevelopment as major sources of water pollution, impacting drinking water supplies, natural habitats, and recreational resources.
Any activity which will disturb 3,000 square feet or more of land or involve the movement of 100 cubic yards or more of soil is required to obtain a permit under the Natick Stormwater Management & Erosion Control Bylaw. There are two Stormwater Permit types:
- Any Land Disturbance greater than 3,000 square feet, but not exceeding 20,000 square feet.
- The construction of a new Drainage Facility or alteration of an existing Drainage Facility greater than 3,000 square feet, but not exceeding 20,000 square feet.
- The addition, on-Site redistribution, or export of greater than or equal to 100 cubic yards, but not exceeding 750 cubic yards of Soil.
- Any Land Disturbance greater than 20,000 square feet.
- The construction of a new Drainage Facility or alteration of an existing Drainage Facility greater than 20,000 square feet.
- The addition, on-Site redistribution, or export of more than 750 cubic yards of Soil.
Stormwater Permit Process
While reviewing applications, the Town will consider whether a project implements best practices in regards to handling stormwater. These stormwater standards or best practices are included in the MA Stormwater Handbook and Appendix A of the Natick Stormwater Regulations. The following are some best practices to utilize:
- Environmentally sensitive site design
- Minimizing impervious surfaces (driveways) and capturing as much stormwater on-site naturally (such as through vegetation)
- Minimizing grading
- Retaining as much natural vegetation as possible
- Use of rain gardens, bioswales, rain barrels, green roofs, etc.
- Avoiding construction within the floodplain
- Utilizing appropriate erosion and sedimentation tools during construction
Click here to learn more about what the Town is doing in regards to stormwater.