Coronavirus (COVID-19): The health and safety of our staff and customers are top priority.  Please note the District offices will be closed to customers until further notice, and the Lake Casitas Recreation Area is closed until further notice. We are here to serve you, and we request that all business be conducted via Internet or phone.  More information is found here.


The District continues to work on important capital improvement and maintenance projects. Please visit the News section on the Home page for projects currently under construction.

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    Water Quality & Utility

Casitas Municipal Water District is committed to bringing you safe and good-tasting water. To accomplish this, Casitas has an extensive monitoring program that includes compliance monitoring, supplemental monitoring and lake management. The compliance monitoring program meets the requirements set by state and federal regulators. The supplemental monitoring program goes beyond what is required, and is designed to provide additional information about conditions found in the distribution system. The District's lake management efforts includes a sampling program for detecting potential problems in the watershed or lake before a problem is caused at the treatment plant or in the distribution system.



Learn how Casitas Municipal Water District treat and distribute water to its customers and how we monitor water quality to ensure we only deliver safe and tasty water. 

How we treat our water
How we distribute our water
How we monitor our water quality
Color and odor Problems?