California's Contaminated Groundwater
Is the State Minding the Store?
Drinking Water Sources That Exceed Maximum Contaminant Levels
This map displays the location of drinking water sources (groundwater wells only) with at least one contaminant that exceeded a state drinking water standard, as reported to the Department of Health Services, between October 1999 and October 2000.
Source: Data from the Department of Health Services (DHS) Drinking Water Database (October 1999October 2000); compiled by LFR Levine-Fricke; mapped by NRDC.
Sign up for NRDC's online newsletter
Water on Switchboard
NRDC experts write about water efficiency, green infrastructure and climate on the NRDC blog.
Recent Water Posts
- State Attorneys General Express Strong Support for Clean Water Protection Rule
- posted by Becky Hammer, 9/16/14
- New groundwater policy brings California into the 21st century
- posted by Marcus Griswold, 9/16/14
- China Environmental News Alert - September 12, 2014
- posted by Greenlaw from NRDC China, 9/12/14
NRDC Gets Top Ratings from the Charity Watchdogs
- Charity Navigator awards NRDC its 4-star top rating.
- Worth magazine named NRDC one of America's 100 best charities.
- NRDC meets the highest standards of the Wise Giving Alliance of the Better Business Bureau.