Draft 2025 Urban Water Management Plan

OCWD Management Area

SECTION 15 PROTOCOLS FOR MODIFYING MONITORING PROGRAMS

Protocols that trigger a change in a monitoring program include:

• a recommendation by the GWRS Independent Advisory Panel for resampling or increased monitoring of a particular constituent of concern; • a recommendation by the Independent Advisory Panel that reviews OCWD use of Santa Ana River water for groundwater recharge and related water quality;

• a change in regulation or anticipation of a change in regulation;

• a constituent in a sample approaches or exceeds a regulatory water quality limit or Maximum Contaminant Level, notification level, or first-time detection of a constituent; • the computer program built by OCWD to validate water quality data prior to transfer to the WRMS data base flags a variation in historical data that may indicate a statistically significant change in water quality; • analysis of water quality trends conducted by water quality, hydrogeology, or recycled water production staff indicate a need to change monitoring; or • OCWD initiates a special study, such as quantifying the removal of contaminants using treatment wetlands or testing the infiltration rate of a proposed new recharge basins.

BASIN 8-1 ALTERNATIVE 2022 UPDATE

Protocols for Monitoring Programs 15-1

Appendix F - 197

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