Data and Information for the South OC Water Quality Improvement Plan (WQIP)

OC Public Works/Environmental Resources is seeking your help in providing data and information to support implementation of the Water Quality Improvement Plan (WQIP) for the South Orange County Watershed Management Area (WMA). 

We are working together with partner agencies and stakeholders to fulfill the commitments of the WQIP and achieve its goals of improving water quality throughout the WMA.  This effort includes continuing to collect data to inform status and trends of the chemical, physical and biological conditions of the watershed.

We would appreciate receiving any information you may have about the watersheds of south Orange County – specifically, any data you may have regarding measurements of water quality. The preference is to collect data in electronic form such as GIS layers and shape files, Adobe PDF or Excel format.  Ideally, large data sets should be accompanied by a summary report with recommendations for water quality priorities and strategies. 

Available, relevant and appropriately collected and analyzed water quality monitoring data would include, but not be limited to, data describing:

  • Chemical constituents,
  • Water quality parameters (i.e. pH, temperature, conductivity, etc.),
  • Toxicity Identification Evaluations for both water column and sediment,
  • Trash impacts,
  • Bioassessments, and
  • Physical habitat;

An extensive library of environmental monitoring data that has been used thus far in developing and implementing the South OC WQIP is available in the Regional Clearinghouse at the following link:

For questions or information regarding the submittal of environmental data for the South OC WQIP, please contact the South OC Monitoring & Assessment Section Chief, Bryan Pastor.