The City of Suffolk requires the submittal of a Water Quality Impact Assessment (WQIA) for any proposed development within the CBPA. A WQIA must demonstrate that land development will not increase the amount of nonpoint source pollution in stormwater runoff. Treating nonpoint source pollution can be managed by installing a Best Management Practice (BMP). A BMP functions by trapping stormwater and holding it for a designed time period or by allowing stormwater to filter into the soil. Examples include a retention or detention pond, infiltration structures such as dry-wells or trenches, and bioswales. In addition, the planting of low maintenance native landscaping in a mulched bed can be used to remove pollutants from runoff. Completing a WQIA will determine the best type of BMP required for your particular project.