Management Zone Implementation Plans

Is your drinking water from a private well?

Through a State Water Board order, management zones are required to provide free well testing to households in their service area to determine if their well has nitrate contamination levels above the legal limit of 10 mg/L (milligrams per liter). So far, only 9-12% of private wells identified as likely impacted by nitrate contamination have been tested in the management zones mapped below. These numbers do not include other private wells within the management zone's service area.

If test results return a nitrate level above the legal limit, the management zone must offer free monthly bottled water deliveries. As residents wait for their well test results, they also have access to free water kiosks in their management zone. 


What if my well has nitrates?

Nitrates have health risks, depending on the amount in your water and the duration of exposure. Consuming high levels of nitrates for even a brief period can lead to serious health risks in infants, diarrhea, vomiting, or pregnancy complications. Consuming high levels of nitrates over a long-term interval may lead to similar complications as well as low blood pressure or potential cancer risk.

If your well is tested and nitrates are found at a level above 10 mg/L, you are entitled to free monthly bottled water deliveries by your management zone.

Learn more about nitrate contamination by downloading this fact sheet.

Management Zones

If you live in one of the management zones below, you are eligible for free well testing to ensure you have access to safe drinking water


Kaweah Water Foundation

If you live within the map area below and would like more information, visit kaweahwater.org and fill out the Replacement Water Program Participation Formor call(559) 325-4463

Check out the map made by Kaweah Water Foundation Management Zone

Verify that you live in the Kaweah Water Foundation Management Zone HERE

If you live in the Kaweah Water Foundation Management Zone, you are eligible for free well testing to ensure you have access to safe drinking water

If you would like help completing the form or have any additional questions, please contact Kjia Rivers at kjia.rivers@communitywatercenter.org or (559) 733-0219

Drinking Water Fill Station locations:

Kaweah Water Foundation

  1. Farmersville

    2975 N. Farmersville Blvd., Farmersville, CA

  2. Okieville

    Southwest corner of Avenue 229 and Road 48 in Okieville, CA

In addition to providing interim solutions, Management Zones have submitted  Management Zone Implementation Plans this September for review and approval by the Central Valley Regional Water Quality Control Board. Learn more about the Management Zone Implementation Plans.

If you would like help completing the form or have any additional questions, please contact Kjia Rivers at kjia.rivers@communitywatercenter.org or (559) 733-0219


Kings Water Alliance

If you live within the shaded areas below and would like more information, visit kingswateralliance.org and fill out the “Residential Drinking Water Well Sampling Form” or call (559) 549-6747

Check out the map made by Kings Water Alliance Management Zone

“Residential Drinking Water Well Sampling Form” HERE

Verify that you live in the Kings Water Alliance HERE

If you live in the Kings Water Alliance Management Zone, you are eligible for free well testing to ensure you have access to safe drinking water

If you would like help completing the form or have any additional questions, please contact Kjia Rivers at kjia.rivers@communitywatercenter.org or (559) 733-0219

Drinking Water Fill Station locations:

Kings Water Alliance:

  1. Hanford, CA

    KART Transit Center

    504 W. 7th Street, Hanford, CA 93230

  2. Kerman, CA

    Kerman Community Center

    15101 W Kearney Blvd, Kerman, CA 93630

  3. Dinuba, CA

    Circle K

    517 W El Monte Way, Dinuba, CA 93618


Tule Basin Management Zone

If you live within the red outline below and would like more information, visit tulemz.com and fill out the “Safe Drinking Water Program Inquiry Form” or call 559-429-6970

Check out the map made by Tule Basin Management Zone

If you live in the Tule Basin Management Zone, you are eligible for free well testing to ensure you have access to safe drinking water

If you would like help completing the form or have any additional questions, please contact Kjia Rivers at kjia.rivers@communitywatercenter.org or (559) 733-0219

Drinking Water Fill Station locations:

Tule Basin Management Zone

  1. Corner of Avenue 96 and Road 236, just south of the post office, in Terra Bella, CA


Test Your Domestic Well for FREE!

Other Resources

Prueba de Pozos Domésticos