Bella Vista Water District
EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the California State Water Resources Control Board, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the EPA (July 2017 - September 2017), tap water provided by this water utility was in compliance with federal health-based drinking water standards.
11
contaminants detected above health guidelines
8
other detected contaminants
Arsenic
cancer✕Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.004 ppbLEGAL LIMIT:
10 ppb1.30 ppb2.94 ppb6.50 ppb
ppb = parts per billion.Health risks of arsenic in excess of health guideline
The health guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
ABOVE LEGAL LIMIT
- Utility Average 2015: 6.50 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 6.50 ppb Yes No
Bromodichloromethane
cancer✕Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.06 ppb4.38 ppb3.53 ppb4.31 ppb
ppb = parts per billion.Health risks of bromodichloromethane in excess of health guideline
The health guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2015: 4.31 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 4.31 ppb Yes No
Bromoform
cancer✕Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.5 ppb1.77 ppb3.02 ppb1.15 ppb
ppb = parts per billion.Health risks of bromoform in excess of health guideline
The health guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2015: 1.15 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 1.15 ppb Yes No
Chloroform
cancer✕Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.4 ppb11.5 ppb8.02 ppb20.4 ppb
ppb = parts per billion.Health risks of chloroform in excess of health guideline
The health guideline of 0.4 ppb for chloroform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2015: 20.4 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 20.4 ppb Yes No
Chromium (hexavalent)
cancer✕Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.02 ppb0.782 ppb1.69 ppb0.257 ppb
ppb = parts per billion.Health risks of chromium (hexavalent) in excess of health guideline
The health guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2010-2015: 0.257 ppb
- Health Guideline Exceeded 2010-2015: Yes
- Legal Limit Exceeded 2010-2015: No
Utility
Average
2010-2015Health
Guideline
Exceeded
2010-2015Legal
Limit
Exceeded
2010-20152010 2011 2012 2013 2014 2015 0.257 ppb Yes No
Dibromochloromethane
cancer✕Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.1 ppb3.01 ppb3.85 ppb1.54 ppb
ppb = parts per billion.Health risks of dibromochloromethane in excess of health guideline
The health guideline of 0.1 ppb for dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2015: 1.54 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 1.54 ppb Yes No
Dichloroacetic acid
cancer✕Dichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.7 ppb6.07 ppb4.04 ppb7.33 ppb
ppb = parts per billion.Health risks of dichloroacetic acid in excess of health guideline
The health guideline of 0.7 ppb for dichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2015: 7.33 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 7.33 ppb Yes No
Manganese
harm to the brain and nervous system✕Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
100 ppb28.1 ppb52.4 ppb113.8 ppb
ppb = parts per billion.Health risks of manganese in excess of health guideline
The health guideline of 100 ppb for manganese was defined by Minnesota as a risk assessment advisory level, a non-enforceable guideline. This health guideline protects against harm to the brain and nervous system.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2015: 113.8 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 113.8 ppb Yes No
Radiological contaminants
cancer✕This utility detected Radium, combined (-226 & -228) & Radium-228.
Radiological contaminants leach into water from certain minerals and from mining. Drinking water contamination with radioactive substances increases the risk of cancer and may harm fetal development.
Total trihalomethanes (TTHMs)
cancer✕Trihalomethanes are cancer-causing contaminants that form during water treatment with chlorine and other disinfectants. The total trihalomethanes group includes four chemicals: chloroform, bromodichloromethane, dibromochloromethane and bromoform.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.8 ppbLEGAL LIMIT:
80 ppb23.7 ppb20.1 ppb36.0 ppb
ppb = parts per billion.Health risks of trihalomethanes in excess of health guideline
The health guideline of 0.8 ppb for trihalomethanes was defined by the California Office of Environmental Health Hazard Assessment as a draft public health goal, the level of drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
ABOVE LEGAL LIMIT
- Utility Average 2015: 36.0 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 36.0 ppb Yes No
Trichloroacetic acid
cancer✕Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
0.5 ppb4.96 ppb3.90 ppb11.4 ppb
ppb = parts per billion.Health risks of trichloroacetic acid in excess of health guideline
The health guideline of 0.5 ppb for trichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2015: 11.4 ppb
- Health Guideline Exceeded 2015: Yes
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 11.4 ppb Yes No
Includes chemicals detected in 2015 for which annual utility averages exceeded an EWG-selected health guideline established by a federal or state public health authority; chemicals detected under the EPA's Unregulated Contaminant Monitoring Rule (UCMR 3) program in 2013 to 2015, for which annual utility averages exceeded a health guideline established by a federal or state public health authority; radiological contaminants detected between 2010 and 2015.
Barium
✕Barium is a mineral present in rocks, soil and water. High concentrations of barium in drinking water increase the risk of cardiovascular disease and hypertension.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
700 ppbLEGAL LIMIT:
2,000 ppb68.2 ppb44.4 ppb160.0 ppb
ppb = parts per billion.Health risks of barium in excess of health guideline
The health guideline of 700 ppb for barium was defined by the Environmental Protection Agency as a children's health-based limit for 10-day exposure, a non-enforceable federal health advisory. This health guideline protects against harm to internal organs.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
ABOVE LEGAL LIMIT
- Utility Average 2015: 160.0 ppb
- Health Guideline Exceeded 2015: No
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 160.0 ppb No No
Chlorate
✕Chlorate forms in drinking water as a byproduct of disinfection. Chlorate impairs thyroid function, making chlorate exposure most harmful during pregnancy and childhood.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
210 ppb114.0 ppb128.7 ppb71.1 ppb
ppb = parts per billion.Health risks of chlorate in excess of health guideline
The health guideline of 210 ppb for chlorate was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against hormone disruption.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2010-2015: 71.1 ppb
- Health Guideline Exceeded 2010-2015: No
- Legal Limit Exceeded 2010-2015: No
Utility
Average
2010-2015Health
Guideline
Exceeded
2010-2015Legal
Limit
Exceeded
2010-20152010 2011 2012 2013 2014 2015 71.1 ppb No No
Chromium (total)
✕Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.
STATE
NATIONAL
THIS UTILITY
How your levels compare
LEGAL LIMIT:
100 ppb0.637 ppb1.54 ppb0.139 ppb
ppb = parts per billion.Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE LEGAL LIMIT
- Utility Average 2010-2015: 0.139 ppb
- Health Guideline Exceeded 2010-2015: No
- Legal Limit Exceeded 2010-2015: No
Utility
Average
2010-2015Health
Guideline
Exceeded
2010-2015Legal
Limit
Exceeded
2010-20152010 2011 2012 2013 2014 2015 0.139 ppb No No
Dibromoacetic acid
✕Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
STATE
NATIONAL
THIS UTILITY
How your levels compare
1.15 ppb1.96 ppb0.419 ppb
ppb = parts per billion.Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
- Utility Average 2015: 0.419 ppb
- Health Guideline Exceeded 2015: No
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 0.419 ppb No No
Haloacetic acids (HAA5)
✕Haloacetic acids are formed when disinfectants such as chlorine are added to tap water. The group of five haloacetic acids regulated by federal standards includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid.
STATE
NATIONAL
THIS UTILITY
How your levels compare
LEGAL LIMIT:
60 ppb12.9 ppb11.0 ppb21.7 ppb
ppb = parts per billion.Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE LEGAL LIMIT
- Utility Average 2015: 21.7 ppb
- Health Guideline Exceeded 2015: No
- Legal Limit Exceeded 2015: No
Utility
Average
2015Health
Guideline
Exceeded
2015Legal
Limit
Exceeded
20152010 2011 2012 2013 2014 2015 21.7 ppb No No
Molybdenum
✕Molybdenum is a metal that occurs naturally in soil, minerals and water. People who ingest large amounts can have increased levels of uric acid and gout-like symptoms.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
40 ppb1.61 ppb4.12 ppb0.572 ppb
ppb = parts per billion.Health risks of molybdenum in excess of health guideline
The health guideline of 40 ppb for molybdenum was defined by the Environmental Protection Agency as a lifetime health-based limit for effects other than cancer. This health guideline protects against an increased risk of gout.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2010-2015: 0.572 ppb
- Health Guideline Exceeded 2010-2015: No
- Legal Limit Exceeded 2010-2015: No
Utility
Average
2010-2015Health
Guideline
Exceeded
2010-2015Legal
Limit
Exceeded
2010-20152010 2011 2012 2013 2014 2015 0.572 ppb No No
Strontium
✕Strontium is a metal that accumulates in the bones. Radioactive strontium-90 can cause bone cancer and leukemia, and any form of strontium at high doses can harm bone health.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
1,500 ppb357.2 ppb443.1 ppb125.6 ppb
ppb = parts per billion.Health risks of strontium in excess of health guideline
The health guideline of 1,500 ppb for strontium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against harm to bones.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2010-2015: 125.6 ppb
- Health Guideline Exceeded 2010-2015: No
- Legal Limit Exceeded 2010-2015: No
Utility
Average
2010-2015Health
Guideline
Exceeded
2010-2015Legal
Limit
Exceeded
2010-20152010 2011 2012 2013 2014 2015 125.6 ppb No No
Vanadium
✕Vanadium is a metal used in steels and other alloys. People are commonly exposed to vanadium in water and food. Excessive exposure can be toxic during pregnancy and childhood.
STATE
NATIONAL
THIS UTILITY
How your levels compare
HEALTH GUIDELINE:
21 ppb1.98 ppb7.27 ppb2.16 ppb
ppb = parts per billion.Health risks of vanadium in excess of health guideline
The health guideline of 21 ppb for vanadium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against change in blood chemistry.
Testing summary by quarter
NOT TESTED
NOT DETECTED
DETECTED
ABOVE HEALTH GUIDELINE
- Utility Average 2010-2015: 2.16 ppb
- Health Guideline Exceeded 2010-2015: No
- Legal Limit Exceeded 2010-2015: No
Utility
Average
2010-2015Health
Guideline
Exceeded
2010-2015Legal
Limit
Exceeded
2010-20152010 2011 2012 2013 2014 2015 2.16 ppb No No
Includes chemicals detected in 2015 for which annual utility averages were lower than an EWG-selected health guideline established by a federal or state public health authority; chemicals detected under the EPA's Unregulated Contaminant Monitoring Rule (UCMR 3) program in 2013 to 2015, for which annual utility averages were lower than an EWG-selected health guideline established by a federal or state public health authority.
Pollution sources
Click on each pollution source to see from which source contaminants come.

Agriculture


Industry


Treatment
byproducts


Runoff &
sprawl


Naturally
occuring

- Arsenic
- Chlorate
- Arsenic
- Chlorate
- Barium
- Chromium (total)
- Manganese
- Strontium
- Chromium (hexavalent)
- Molybdenum
- Vanadium
- Radium, combined (-226 & -228)
- Radium-228
- Arsenic
- Barium
- Chromium (total)
- Manganese
- Strontium
- Chromium (hexavalent)
- Molybdenum
- Vanadium
- Radium, combined (-226 & -228)
- Radium-228
- Chlorate
- Dichloroacetic acid
- Trichloroacetic acid
- Dibromoacetic acid
- Haloacetic acids (HAA5)
- Chloroform
- Bromoform
- Bromodichloromethane
- Dibromochloromethane
- Total trihalomethanes (TTHMs)
Bella Vista Water District compliance with legally mandated federal standards
- From October 2014 to September 2017, Bella Vista Water District was in violation of health-based drinking water standards: No
Other contaminants tested
✕Contaminants detected between 2010 and 2014 and were not part of EPA's UCMR-3 testing program:
Fluoride, Monochloroacetic acid
Chemicals tested for but not detected from 2010 to 2015:
1,1,1,2-Tetrachloroethane, 1,1,1-Trichloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane, 1,1-Dichloroethane, 1,1-Dichloroethylene, 1,1-Dichloropropene, 1,2,3-Trichlorobenzene, 1,2,3-Trichloropropane, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2-Dibromo-3-chloropropane (DBCP), 1,2-Dichloroethane, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 1,3-Butadiene, 1,3-Dichloropropane, 1,3-Dichloropropene, 1,4-Dioxane, 2,2-Dichloropropane, 2-Chloroethylvinyl ether, Aluminum, Antimony, Benzene, Beryllium, Bromobenzene, Bromochloromethane, Bromomethane, Cadmium, Carbon tetrachloride, Chlorodifluoromethane, Chloroethane, Chloromethane, cis-1,2-Dichloroethylene, Cobalt, Dibromomethane, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Ethyl tert-butyl ether, Ethylbenzene, Hexachlorobutadiene, Isopropyl ether, Isopropylbenzene, m- & p-Xylene, m-Dichlorobenzene, m-Xylene, Mercury (inorganic), Monobromoacetic acid, Monochlorobenzene (chlorobenzene), MTBE, n-Butylbenzene, n-Propylbenzene, Naphthalene, Nitrate, Nitrite, o-Chlorotoluene, o-Dichlorobenzene, o-Xylene, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, p-Xylene, Perchlorate, Perfluorobutane sulfonate (PFBS), Perfluoroheptanoic acid (PFHPA), Perfluorohexane sulfonate (PFHXS), Perfluorononanoic acid (PFNA), Perfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA), sec-Butylbenzene, Selenium, Silver, Styrene, tert-Amyl methyl ether, tert-Butyl alcohol, tert-Butylbenzene, Tetrachloroethylene (perchloroethylene), Thallium, Toluene, trans-1,2-Dichloroethylene, Trichloroethylene, Trichlorofluoromethane, Trichlorotrifluoroethane, Vinyl chloride, Xylenes (total)