inyo, CA
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
Coliform (TCR)
Description
Coliforms are bacteria that are naturally present in the environment and used as an indicator that other, potentially harmful, bacteria may be present. Coliforms found in more samples than allowed is a warning of potential problems.
Health Effects
Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5
Fluoride
Description
Fluoride compounds are salts that form when the element, fluorine, combines with minerals in soil or rocks. Many communities add fluoride to their drinking water to promote dental health.
Health Effects
Bone disease (pain and tenderness of the bones); Children may get mottled teeth
Nitrate
Description
Nitrates and nitrites are nitrogen-oxygen chemical units which combine with various organic and inorganic compounds. The greatest use of nitrates is as a fertilizer. Once taken into the body, nitrates are converted to nitrites.
Health Effects
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.
All Incidents
| Water System | Type | Measure | Violation | Effects | Begin Date |
|---|---|---|---|---|---|
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-04-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-01-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-10-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-07-01 |
| SIERRA NORTH COMMUNITY SERVICE DISTRICT | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-07-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-04-01 |
| KATHERINA MULLER WATER SYSTEM | 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 | 2016-02-01 |
| KATHERINA MULLER WATER SYSTEM | 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 | 2016-02-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-01-01 |
| KATHERINA MULLER WATER SYSTEM | 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 | 2015-11-01 |
| CARTAGO MUTUAL WATER COMPANY | 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 | 2015-10-01 |
| KATHERINA MULLER WATER SYSTEM | 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 | 2015-10-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2015-10-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| CR BRIGGS | 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 | 2015-08-01 |
| VAN LOON WATER ASSOCIATION | 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 | 2015-07-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2015-07-01 |
| LAKE SABRINA BOAT LANDING | 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 | 2015-07-01 |
| KEELER COMMUNITY SERVICE DISTRICT | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2015-07-01 |
| BISHOP CREEK SYSTEM | 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 | 2015-07-01 |
| VAN LOON WATER ASSOCIATION | 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 | 2015-07-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2015-04-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| NORTH LONE PINE MUTUAL WATER COMPANY | 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 | 2015-03-01 |
| TUTTLE CREEK CAMPGROUND | 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 | 2015-03-01 |
| NORTH LONE PINE MUTUAL WATER COMPANY | 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 | 2015-03-01 |
| NORTH LONE PINE MUTUAL WATER COMPANY | 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 | 2015-03-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2015-01-01 |
| FOOTHILL MOBILE HOME PARK | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| FOOTHILL MOBILE HOME PARK | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-10-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| SIERRA NORTH COMMUNITY SERVICE DISTRICT | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-10-01 |
| TUTTLE CREEK CAMPGROUND | 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 | 2014-09-01 |
| KEELER COMMUNITY SERVICE 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 | 2014-09-01 |
| PLEASANT VALLEY CAMPGROUND | 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 | 2014-08-01 |
| PLEASANT VALLEY CAMPGROUND | 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 | 2014-08-01 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| FOOTHILL MOBILE HOME PARK | 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 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-07-01 |
| FOOTHILL MOBILE HOME PARK | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | 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 |
| KEELER COMMUNITY SERVICE DISTRICT | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-04-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-04-01 |
| FOOTHILL MOBILE HOME PARK | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-04-01 |
| FOOTHILL MOBILE HOME PARK | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-04-01 |
| KEELER COMMUNITY SERVICE DISTRICT | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-04-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-04-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-04-01 |
| KEELER COMMUNITY SERVICE DISTRICT | Arsenic | MCL, Average | Maximum Contaminant Level Violation | Skin damage or problems with circulatory systems, and may have increased risk of getting cancer | 2014-04-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-01-01 |
| FOOTHILL MOBILE HOME PARK | 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 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| KEELER COMMUNITY SERVICE 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 |
| FOOTHILL MOBILE HOME PARK | 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 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| FOOTHILL MOBILE HOME PARK | 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 |
| FOOTHILL MOBILE HOME PARK | 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 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| EASTERN SIERRA COLLEGE CENTER - BISHOP | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2014-01-01 |
| KEELER COMMUNITY SERVICE 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 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2014-01-01 |
| KEELER COMMUNITY SERVICE 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 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2013-12-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2013-12-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2013-12-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2013-12-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2013-12-01 |
| BIRD INDUSTRIAL COMPLEX | 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 | 2013-12-01 |
| FOOTHILL MOBILE HOME PARK | 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 |
| FOOTHILL MOBILE HOME PARK | 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 |
| KEELER COMMUNITY SERVICE 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 |
| FOOTHILL MOBILE HOME PARK | 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 |