The Power of Information

National Drinking Water Database


California Water Service - Livermore Utilities - Oakland, CA


Serves 53,540 people

Vinyl chloride

Vinyl chloride is a chemical used for production of PVC plastic; it contaminates drinking water due to leaching from PVC pipes and discharges from plastics manufacturing.
 
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
114 days
Tests ConductedNumber of individual tests done for this contaminant
377 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Vinyl chlorideVinyl chloride is a chemical used for production of PVC plastic; it contaminates drinking water due to leaching from PVC pipes and discharges from plastics manufacturing.0 ppb
0 ppb
No
MCLGA 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.: 0 ppb
No
2 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 Vinyl chloride

Health Based Limits for Vinyl chloride

StandardDescriptionLevel
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.0 ppb
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.0.02 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.0.05 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.2 ppb
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.2 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.2 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.100 ppb
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.3000 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.3000 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-250 ppb220 ppb
2009-03-040 ppb660 ppb
2009-02-050 ppb660 ppb
2009-01-070 ppb660 ppb
2008-12-030 ppb660 ppb
2008-11-180 ppb110 ppb
2008-11-050 ppb660 ppb
2008-10-290 ppb220 ppb
2008-10-220 ppb110 ppb
2008-10-210 ppb110 ppb
2008-10-080 ppb770 ppb
2008-10-070 ppb660 ppb
2008-09-180 ppb14140 ppb
2008-09-040 ppb330 ppb
2008-09-030 ppb330 ppb
2008-08-190 ppb110 ppb
2008-08-050 ppb660 ppb
2008-08-040 ppb110 ppb
2008-07-240 ppb220 ppb
2008-07-090 ppb880 ppb
2008-07-080 ppb220 ppb
2008-07-070 ppb220 ppb
2008-06-300 ppb110 ppb
2008-06-250 ppb770 ppb
2008-06-240 ppb14140 ppb
2008-06-100 ppb110 ppb
2008-06-030 ppb660 ppb
2008-05-270 ppb330 ppb
2008-05-080 ppb330 ppb
2008-05-050 ppb330 ppb
2008-04-150 ppb330 ppb
2008-04-080 ppb110 ppb
2008-04-020 ppb330 ppb
2008-03-050 ppb660 ppb
2008-02-130 ppb110 ppb
2008-02-070 ppb330 ppb
2008-01-150 ppb110 ppb
2008-01-090 ppb660 ppb
2007-12-040 ppb660 ppb
2007-11-060 ppb990 ppb
2007-10-170 ppb330 ppb
2007-10-090 ppb110 ppb
2007-10-040 ppb330 ppb
2007-09-170 ppb220 ppb
2007-09-050 ppb330 ppb
2007-08-280 ppb440 ppb
2007-08-070 ppb330 ppb
2007-07-250 ppb330 ppb
2007-07-100 ppb330 ppb
2007-06-050 ppb220 ppb
2007-06-040 ppb330 ppb
2007-05-070 ppb330 ppb
2007-04-100 ppb220 ppb
2007-04-030 ppb330 ppb
2007-03-060 ppb330 ppb
2007-02-070 ppb330 ppb
2007-01-220 ppb220 ppb
2007-01-100 ppb330 ppb
2006-12-050 ppb110 ppb
2006-12-040 ppb330 ppb
2006-11-080 ppb330 ppb
2006-10-180 ppb330 ppb
2006-10-030 ppb330 ppb
2006-09-060 ppb330 ppb
2006-08-080 ppb330 ppb
2006-07-180 ppb550 ppb
2006-07-120 ppb550 ppb
2006-06-060 ppb330 ppb
2006-05-030 ppb330 ppb
2006-04-180 ppb110 ppb
2006-04-130 ppb440 ppb
2006-04-040 ppb330 ppb
2006-03-070 ppb330 ppb
2006-02-070 ppb330 ppb
2006-01-190 ppb440 ppb
2006-01-100 ppb330 ppb
2005-12-130 ppb110 ppb
2005-12-060 ppb330 ppb
2005-11-220 ppb220 ppb
2005-11-080 ppb330 ppb
2005-10-190 ppb110 ppb
2005-10-040 ppb330 ppb
2005-09-200 ppb330 ppb
2005-08-160 ppb440 ppb
2005-08-090 ppb330 ppb
2005-07-260 ppb220 ppb
2005-07-120 ppb330 ppb
2005-06-210 ppb330 ppb
2005-05-240 ppb440 ppb
2005-05-110 ppb440 ppb
2005-04-120 ppb330 ppb
2005-03-160 ppb330 ppb
2005-02-140 ppb330 ppb
2005-02-080 ppb550 ppb
2005-01-100 ppb330 ppb
2004-12-150 ppb330 ppb
2004-11-180 ppb330 ppb
2004-11-030 ppb330 ppb
2004-10-200 ppb220 ppb
2004-10-180 ppb330 ppb
2004-09-200 ppb440 ppb
2004-08-190 ppb110 ppb
2004-08-180 ppb330 ppb
2004-08-100 ppb330 ppb
2004-08-060 ppb110 ppb
2004-07-210 ppb330 ppb
2004-07-130 ppb330 ppb
2004-06-090 ppb110 ppb
2004-05-250 ppb220 ppb
2004-04-130 ppb440 ppb
2004-03-030 ppb110 ppb
2004-03-020 ppb110 ppb
2004-02-180 ppb330 ppb
2004-01-220 ppb330 ppb