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.
| Water System | Type | Measure | Violation | Effects | Begin Date |
|---|---|---|---|---|---|
| BETTERAVIA GAS & MART | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2018-02-20 |
| BETTERAVIA GAS & MART | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2018-02-20 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-07-01 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-07-01 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-07-01 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-07-01 |
| BONITA SCHOOL | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| BONITA SCHOOL | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| BONITA SCHOOL | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| BETTER COOLING PRODUCE | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| BONITA SCHOOL | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-04-01 |
| CENTRAL CITY COOLING | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-01-01 |
| CENTRAL CITY COOLING | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2017-01-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| SHEPHERD OF THE VALLEY | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2015-09-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-07-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-07-01 |
| PARADISE STORE | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2015-05-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-04-01 |
| MONTECITO WATER DIST | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-04-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-04-01 |
| MONTECITO WATER DIST | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-04-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-01-01 |
| AMERICAN WATER O&M, LLC - VAFB | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-01-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| RANCHO LA SCHERPA | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2013-10-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| EL CAPITAN MUTUAL WATER CO | Coliform (TCR) | MCL, Acute (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2013-09-01 |
| SAN MARCOS CHRISTIAN CAMP | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2013-07-01 |
| CARPINTERIA VALLEY WATER DISTRICT | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2013-07-01 |
| PARKER WINERY | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2013-07-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| LOS PRIETOS BOY'S CAMP/ACADEMY | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2013-07-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CARPINTERIA VALLEY WATER DISTRICT | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2013-07-01 |
| CARPINTERIA VALLEY WATER DISTRICT | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2013-04-01 |
| CARPINTERIA VALLEY WATER DISTRICT | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2013-04-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| BETTERAVIA GAS & MART | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2012-09-01 |
| BETTERAVIA GAS & MART | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2012-09-01 |
| HEALTH SANI SVCS RECY CTR | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2012-08-01 |
| HEALTH SANI SVCS RECY CTR | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2012-08-01 |
| HEALTH SANI SVCS RECY CTR | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2012-08-01 |
| HEALTH SANI SVCS RECY CTR | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2012-08-01 |
| HEALTH SANI SVCS RECY CTR | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2012-08-01 |
| HEALTH SANI SVCS RECY CTR | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2012-08-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| SANTA YNEZ RIVER WATER CONS. DIST. ID#1 | Coliform (TCR) | MCL, Acute (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2012-04-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| SAGEBRUSH ANNIE'S | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2011-11-01 |
| SAGEBRUSH ANNIE'S | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2011-11-01 |
| SAGEBRUSH ANNIE'S | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2011-11-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-11-01 |
| SAGEBRUSH ANNIE'S | Nitrate | MCL, Single Sample | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2011-11-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2011-11-01 |
| MELVILLE WINERY | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2011-10-01 |
| PAINTED CAVE MWC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2011-08-01 |
| PAINTED CAVE MWC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2011-08-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2011-06-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| FLOOD RANCH CO/RANCHO SISQUOC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-10-01 |
| FLOOD RANCH CO/RANCHO SISQUOC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-10-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-10-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| FLOOD RANCH CO/RANCHO SISQUOC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-07-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| FLOOD RANCH CO/RANCHO SISQUOC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-07-01 |
| FLOOD RANCH CO/RANCHO SISQUOC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-05-01 |
| FLOOD RANCH CO/RANCHO SISQUOC | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-05-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
| CUYAMA MUTUAL WATER CO. | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2010-02-01 |
| CUYAMA MUTUAL WATER CO. | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2010-02-01 |
| COMMUNITY CHRISTIAN SCHOOL | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-02-01 |
| CUYAMA MUTUAL WATER CO. | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2010-02-01 |
| CUYAMA MUTUAL WATER CO. | Coliform (TCR) | MCL, Monthly (TCR) | Maximum Contaminant Level Violation | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 | 2010-02-01 |
| CUYAMA MUTUAL WATER CO. | Nitrate | MCL, Average | Maximum Contaminant Level Violation | Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. | 2010-02-01 |
| CUYAMA COMMUNITY SERVICES DISTRICT | 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 |
