The Power of Information

National Drinking Water Database


United Water Idaho Inc Utilities - Boise, ID


Serves 185,787 people

Barium (total)

Barium is a mineral that enters drinking water through drilling and mining waste runoff, discharges from chemical industries and erosion of natural deposits.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
0 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
48 days
Tests ConductedNumber of individual tests done for this contaminant
75 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Barium (total)Barium is a mineral that enters drinking water through drilling and mining waste runoff, discharges from chemical industries and erosion of natural deposits.14.41 ppb
130 ppb
No
700 ppb
No
2000 ppb
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for Barium (total)

Health Based Limits for Barium (total)

StandardDescriptionLevel
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.700 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.700 ppb
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.1000 ppb
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.2000 ppb
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.2000 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.2000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.7000 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2008-08-260 ppb110 ppb
2008-08-200 ppb220 ppb
2008-08-150 ppb110 ppb
2008-07-310 ppb330 ppb
2008-07-1515 ppb420 to 40 ppb
2008-07-110 ppb110 ppb
2008-07-100 ppb110 ppb
2008-07-080 ppb110 ppb
2008-07-0330 ppb210 to 60 ppb
2008-07-010 ppb110 ppb
2007-11-290 ppb110 ppb
2007-07-300 ppb110 ppb
2007-07-240 ppb110 ppb
2007-07-230 ppb440 ppb
2007-07-200 ppb110 ppb
2007-07-190 ppb110 ppb
2007-07-1320 ppb1020 ppb
2007-07-110 ppb220 ppb
2007-07-0540 ppb3020 to 70 ppb
2007-07-03130 ppb10130 ppb
2006-08-110 ppb110 ppb
2006-08-090 ppb330 ppb
2006-07-310 ppb110 ppb
2006-07-250 ppb220 ppb
2006-07-240 ppb110 ppb
2006-07-1930 ppb210 to 60 ppb
2006-07-13130 ppb10130 ppb
2006-07-110 ppb220 ppb
2006-07-070 ppb110 ppb
2005-08-310 ppb110 ppb
2005-08-190 ppb110 ppb
2005-08-040 ppb220 ppb
2005-08-030 ppb110 ppb
2005-08-010 ppb110 ppb
2005-07-2166.67 ppb3060 to 70 ppb
2005-07-200 ppb110 ppb
2005-07-140 ppb110 ppb
2005-07-130 ppb330 ppb
2005-03-160 ppb110 ppb
2004-11-2380 ppb1080 ppb
2004-09-010 ppb220 ppb
2004-08-3130 ppb210 to 60 ppb
2004-08-130 ppb110 ppb
2004-08-100 ppb110 ppb
2004-08-06120 ppb10120 ppb
2004-08-040 ppb110 ppb
2004-08-030 ppb220 ppb
2004-07-260 ppb220 ppb