Water Quality Reports

We take water quality very seriously. When it comes to complying with strict federal regulations for delivering clean, quality drinking water, we’ve consistently scored among the highest of all water companies. Currently, we score greater than 99% in drinking water compliance – a fact that we are immensely proud of.

In the past several years, and all over the country, we’ve received more than 150 awards for superior water quality from state regulators, industry organizations, individual communities, and governmental and environmental agencies. Visit our Accolades section to view some of our recent awards.

View your most recent California American Water Water Quality Report:

Ambler Park District (2008)
Antelope District (2008)
Arden District (2008)
Baldwin Hills District (2008)
Bishop District (2008)
Chualar District-English (2008)
         Chualar District-Spanish (2008)
Coronado District (2008)
Descanso District (2008)
Duarte District (2008)
East Palo Alto District (2008)
Hidden Hills District (2008)
Isleton District (2008)
Larkfield District (2008)
Las Posas District (2008)
Lincoln Oaks District (2008)
Monterey District (2008)
Parkway District (2008)
Rosemont District (2008)
      Rosemont customers: You recently received an annual Water Quality Report (CCR) from California American Water in the mail. Due to a typographical error in the "Regulated Substances" table of that report, the Maximum Contaminant Level (MCL) for arsenic was shown as ".10" parts per billion (ppb). The MCL for arsenic is actually 10 (ppb). As shown in the table, the range of detections (2 ppb to 4 ppb) and average (2.4 ppb) for the Rosemont system are correct and well below the MCL for arsenic.

We apologize for any inconvenience or misunderstanding that this may have caused.

Ryan Ranch District (2008)
San Marino District (2008)
Security Park (2008)
Suburban District (2008)
Thousand Oaks/Newbury Park District (2008)
Toro (2008)
Walnut Grove District (2008)
West Placer District (2008)