MS4 regulations include six minimum measures operators (municipalities and other entities) of systems are required to meet. Stream bioassessment analysis and water quality educational and training programs that WAA provides can address many of the "minimum measures" required in the MS4 regulations.

Minimum measure I
Public Education and Outreach

Educational programs provide hands-on experience for children and adults, reaching a diverse audience and creating broader public support for the municipality's MS4 program.


Minimum measure II
Public Participation and Involvement

Stream biomonitoring technical training programs are geared towards training volunteers who may establish water quality monitoring groups, which are a cost effective means of collecting water quality data that can be used to measure the effectiveness of an MS4 program.


Minimum measure III
Illicit Discharge Detection and Elimination

Watershed and stream bioassessments are a cost-effective method for detecting illicit discharges. Results from a stream bioassessment can provide the degree and most likely source of water quality impact.


Minimum measure IV and V
Construction Site Runoff Control and Post-Construction Runoff Control

The effectiveness and compliance of pre- and post-construction prevention measures can be assessed through pre- and post-construction stream bioassessments.



Minimum measure VI
Pollution Prevention/Good Housekeeping

Stream bioassessments can measure the water quality of a water body that is receiving discharges from municipal and facility operations, and determine if lapses in treatment have occurred or if maintenance or upgrades may be required, as well as determine the likely source of an impact.





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