colusa, CA
Total Incidents:
77
Last Incident:
April 01, 2018
Note: Just because the latest incident is in 2017 or 2018 doesn’t mean your water is free of contaminants! There is a considerable lag between when data is collected and when it is published by the EPA.
Contaminants
Arsenic
Description
Arsenic is a semi-metal element in the periodic table. It is odorless and tasteless. It enters drinking water supplies from natural deposits in the earth or from agricultural and industrial practices. Approximately 90 percent of industrial arsenic in the U.S. is currently used as a wood preservative, but arsenic is also used in paints, dyes, metals, drugs, soaps, and semi-conductors. Agricultural applications, mining, and smelting also contribute to arsenic releases in the environment.
Health Effects
Skin damage or problems with circulatory systems, and may have increased risk of getting cancer
All Incidents
| Water System | Type | Measure | Violation | Effects | Begin Date |
|---|---|---|---|---|---|
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2018-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2018-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2017-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2017-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2017-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2017-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2016-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2016-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2016-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2016-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2015-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2015-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2015-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2015-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2015-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2013-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2012-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-07-01 |
| DEL ORO WATER CO.-WALNUT RANCH | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-07-01 |
| DEL ORO WATER CO.-WALNUT RANCH | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-10-01 |
| DEL ORO WATER CO.-WALNUT RANCH | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-07-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-07-01 |
| DEL ORO WATER CO.-WALNUT RANCH | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-07-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-07-01 |
| DEL ORO WATER CO.-WALNUT RANCH | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-04-01 |
| DEL ORO WATER CO.-WALNUT RANCH | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-04-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-04-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-04-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-01-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-01-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2010-01-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-10-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-10-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-07-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-07-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-07-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-07-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-04-01 |
| COLUSA CO. WWD #2 - PRINCETON | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-04-01 |
| COLUSA CO. WWD #1 - GRIMES | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2009-04-01 |