Appendix C, Program Effectiveness Assessments (PEA)

* Please note that the reports below are prepared on behalf of municipalities within the Santa Ana Region Water Quality Control Board jurisdiction of Orange County. For reports on progress in south Orange County (San Diego Regional Water Quality Control Board jurisdiction of Orange County), see the following page of our website: South OC Water Quality Improvement Plan Annual Reports


The Unified Annual Progress Report Program Effectiveness Assessment is compiled based on information provided by each Permittee within the individual Program Effectiveness Assessment reports. It highlights certain program measures compiled on a countywide scale to help evaluate the effectiveness of the programs collectively.

Orange County Stormwater Program 2019-20 Unified PEA (Santa Ana Region)

The Permittees also prepare individual Program Effectiveness Assessment reports to help evaluate the effectiveness of the programs on a jurisdictional basis. For information on obtaining other individual PEAs, please consult the appropriate city website.            

Archived PEA Reports (2015-16 through 2018-19 reporting periods)