ORANGE, CA

Total Incidents:
5
Last Incident:
July 01, 2017

Note: Just because the latest incident is in 2017 or 2018 doesn't mean your water is free of contaminants! There is a considerable lag between when data is collected and when it is published by the EPA.

Contaminants

All Incidents

Water System Type Measure Violation Effects Begin Date
SANTA MARGARITA WATER DISTRICT-NICHOLS I TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2017-07-01
SANTA MARGARITA WATER DISTRICT-NICHOLS I TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2017-07-01
MIDWAY CITY MUTUAL WC Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2009-11-01
MIDWAY CITY MUTUAL WC Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2009-11-01
RANCHO MISSION VIEJO Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2009-08-01