Austin Water Quality Credit

The water quality credit system presented in this section sets forth a method for designers to achieve full credit or partial credit for innovative controls that are either undersized or capture runoff from only a portion of the developed site. The objective of the water quality credit system is to provide flexibility for meeting the City’s water quality requirements. For example, in many cases full water quality credit can be met through the use of a single control located at the downstream end of the developed site. Alternatively, water quality credit can be achieved through green stormwater quality infrastructure controls distributed throughout a developed site and integrated into the landscape.