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Water Quality

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Source Water Quality
IID annually coordinates with a state certified laboratory for the collection and analysis of Title 22 (of the California Code of Regulations) source water samples as a service to local public water treatment systems to facilitate the annual production of Consumer Confidence Reports. The data and a share of the incurred costs are forwarded to all of the participants in association with the Title 22 Joint Watershed Monitoring Program.

The All-American Canal and three main supply canals (East Highline, Central Main, and Westside Main) are sampled each year for numerous constituents as required by law and in coordination with the State Water Resources Control Board – Division of Drinking Water, formerly known as the Drinking Water Field Operations Branch of the California Department of Health Services.

An enhanced monitoring program was implemented in 2018 under the direction of the Division of Drinking Water. The revised program includes 21 additional sampling locations which will be monitored annually over a period of four years to help characterize the raw source water to meet state requirements.

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2019 All-American Canal Drop 4 [PDF]
East Highline Canal [PDF]
Central Main Canal [PDF]
Westside Main Canal [PDF]
Map Title 22 Sampling Sites [PDF]
Enhanced Monitoring Program Data

2019 IID Title 22 Enhanced Allied-Rose [PDF]

2019 IID Title 22 Enhanced Brawley-Mansfield [PDF]

2019 IID Title 22 Enhanced CalEnergy-Vail4 [PDF]

2019 IID Title 22 Enhanced Calexico-AAC [PDF]

2019 IID Title 22 Enhanced DHS-Alamitos [PDF]

2019 IID Title 22 Enhanced El Centro-Dahlia1 [PDF]

2019 IID Title 22 Enhanced El Centro-S Date [PDF]

2019 IID Title 22 Enhanced Gateway-Alamo [PDF]

2019 IID Title 22 Enhanced GSWC-C W-38 [PDF]

2019 IID Title 22 Enhanced Heber-CM [PDF]

2019 IID Title 22 Enhanced Heber-Dogwood [PDF]

2019 IID Title 22 Enhanced Holtville-CM [PDF]

2019 IID Title 22 Enhanced Imperial-Dahlia [PDF]

2019 IID Title 22 Enhanced IVC-Dogwood [PDF]

2019 IID Title 22 Enhanced Magnolia-Osage [PDF]

2019 IID Title 22 Enhanced McCabe-CM [PDF]

2019 IID Title 22 Enhanced Meadows-Acacia [PDF]

2019 IID Title 22 Enhanced Mulberry-Mulberry [PDF]

2019 IID Title 22 Enhanced Pine-Township [PDF]

2019 IID Title 22 Enhanced Seeley-Elder [PDF]

2019 IID Title 22 Enhanced Westmorland-Trif5 [PDF]

For past Title 22 reports, please visit the Water Quality section of the IID water library.

Drainage Water Quality
For information on drainage water quality, click here.

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