Water Quality

Providing our customers with safe, high quality drinking water is a main priority of the Yorba Linda Water District. All the District’s water is safe and meets all quality standards set by both the State and Federal government. In accordance with the Safe Water Drinking Act of 1996, the District continues to monitor more than 100 compounds in your water supply. Additional information can be found in the latest version of the Consumer Confidence Report. Some local water agencies utilize non-potable water for landscaping needs. As the Yorba Linda Water District only has one set of “pipes”, all water provided by the District is of drinking water quality.

Not long ago detection of foreign matter in water in the parts-per-million range was considered state of the art. Today, parts-per-billion are measured on a routine basis and parts–per–trillion seems to be the prevailing inclination. The ability to measure possible contaminants at this minute level allows water agencies to carefully monitor water quality and ensure that public drinking water supplies remain safe and healthful. Our Water Quality staff continuously monitors the water supply, collecting more than 2,000 laboratory tests each year from water taken from 37 sample points and 10 wells throughout the District.

The District currently tests more than 140 water samples taken from homes, businesses, and other locations for potential microbial contaminants every month. The District’s groundwater wells are also tested on a regular basis for microbial, physical, and chemical contaminants. Water obtained from the Colorado River and northern California is tested by regional water importer Metropolitan Water District of Southern California to ensure that this water is also of the highest quality.

Orange County Water District, the agency charged with the maintenance of local groundwater, conducts a basin-wide water well monitoring program for toxic, organic, and inorganic contaminants. OCWD’s water quality laboratory provides YLWD and other groundwater producers access to high-quality lab resources for its well water monitoring program.

Metropolitan Water District is the regional agency that brings the Colorado River and Northern California to Southern California. Metropolitan continually tests samples of this water at its water quality laboratory. This laboratory is considered to be one of the finest of its kind in the world. Metropolitan treats all of the imported water it provides to us using a three-stage process. This ensures that this water always meets the same stringent water quality standards that our groundwater does.

Fluoride

While there is naturally occurring fluoride in our water, YLWD does not add fluoride to its drinking water supplies. The fluoride content in our groundwater averages 0.5 parts per million, while the level in water imported from the Colorado River and Northern California averages 0.8 parts per million.

Since YLWD’s water supply is made up of approximately 30% water from MWD and 70% groundwater, our water has fluoride levels in the range of 0.5 to 0.8 parts per million (milligrams per liter) depending on the source of water served in your area at any given time. Because YLWD’s wells already contain a level of fluoride close to the recommended amount, YLWD does not add additional fluoride to our water.