The Power of Information

National Drinking Water Database


Garden City (V) Utilities - Great Neck, NY


Serves 21,686 people

Trichloroethylene

Trichloroethylene is used to remove grease from fabricated metal parts and in the production of some textiles; this pollutant comes from metal degreasing sites, metal finishing and rubber processing industries.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
148 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)
81 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
259 days
Tests ConductedNumber of individual tests done for this contaminant
451 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
TrichloroethyleneTrichloroethylene is used to remove grease from fabricated metal parts and in the production of some textiles; this pollutant comes from metal degreasing sites, metal finishing and rubber processing industries.0.79 ppb
14.6 ppb
Yes
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
Yes
5 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 Trichloroethylene

Health Based Limits for Trichloroethylene

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
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.0.03 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.1.7 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.3 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.5 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.200 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.300 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-010.6 ppb100.6 ppb
2009-03-010 ppb110 ppb
2009-03-011.2 ppb101.2 ppb
2009-03-0147.8 ppb+210 to 95.6 ppb
2009-03-010 ppb110 ppb
2009-03-010 ppb110 ppb
2009-02-010 ppb110 ppb
2009-02-010 ppb110 ppb
2009-02-011.2 ppb101.2 ppb
2009-02-010 ppb110 ppb
2009-02-0132.08 ppb+420 to 97.7 ppb
2009-02-010 ppb220 ppb
2009-01-010 ppb220 ppb
2009-01-019.25 ppb210 to 18.5 ppb
2009-01-010.6 ppb100.6 ppb
2009-01-0118.35 ppb+210 to 36.7 ppb
2009-01-011.8 ppb101.8 ppb
2009-01-010 ppb110 ppb
2009-01-0146.6 ppb+201.4 to 91.8 ppb
2009-01-0148.75 ppb+210 to 97.5 ppb
2008-12-0139.58 ppb+420 to 88.2 ppb
2008-12-010.6 ppb100.6 ppb
2008-12-010 ppb220 ppb
2008-12-010 ppb110 ppb
2008-12-010.9 ppb100.9 ppb
2008-12-010 ppb110 ppb
2008-12-010 ppb110 ppb
2008-12-010 ppb220 ppb
2008-12-010 ppb110 ppb
2008-12-0130.37 ppb+320 to 91.1 ppb
2008-11-011.3 ppb101.3 ppb
2008-11-011.4 ppb101.4 ppb
2008-11-010 ppb220 ppb
2008-11-010 ppb110 ppb
2008-11-010 ppb110 ppb
2008-11-010 ppb110 ppb
2008-11-010 ppb110 ppb
2008-11-010 ppb110 ppb
2008-11-010 ppb110 ppb
2008-10-0150.05 ppb+201.6 to 98.5 ppb
2008-10-0111.13 ppb320 to 33.4 ppb
2008-10-0157.15 ppb+203.3 to 111 ppb
2008-10-0135.28 ppb+520 to 98.6 ppb
2008-10-0145.65 ppb+201.3 to 90 ppb
2008-10-010 ppb220 ppb
2008-10-011.2 ppb101.2 ppb
2008-10-010.6 ppb100.6 ppb
2008-10-011.3 ppb210 to 2.6 ppb
2008-10-010.6 ppb100.6 ppb
2008-09-010 ppb220 ppb
2008-09-0151.6 ppb+201.2 to 102 ppb
2008-09-010 ppb220 ppb
2008-09-010 ppb110 ppb
2008-09-010 ppb110 ppb
2008-08-0155.9 ppb+202.8 to 109 ppb
2008-08-010 ppb220 ppb
2008-08-0157.9 ppb+201.8 to 114 ppb
2008-08-0150.05 ppb+420 to 114 ppb
2008-08-0156.35 ppb+203.7 to 109 ppb
2008-08-012.3 ppb102.3 ppb
2008-08-0150 ppb+201.4 to 98.6 ppb
2008-08-0125 ppb+420 to 96.8 ppb
2008-08-010 ppb110 ppb
2008-08-0151.5 ppb+203 to 100 ppb
2008-07-0135.78 ppb+420 to 84 ppb
2008-07-0119.3 ppb+310 to 57.3 ppb
2008-07-014.6 ppb104.6 ppb
2008-07-010 ppb220 ppb
2008-07-0151.2 ppb+201.4 to 101 ppb
2008-06-0153.3 ppb+401.6 to 105 ppb
2008-06-010 ppb110 ppb
2008-06-010 ppb110 ppb
2008-06-0144.85 ppb+420 to 106 ppb
2008-06-012.1 ppb102.1 ppb
2008-06-010 ppb220 ppb
2008-06-010 ppb110 ppb
2008-05-0130.23 ppb+640 to 90.7 ppb
2008-05-010 ppb220 ppb
2008-05-010.9 ppb100.9 ppb
2008-05-0146.55 ppb+201.1 to 92 ppb
2008-05-010 ppb220 ppb
2008-05-0154 ppb+210 to 108 ppb
2008-04-0135.55 ppb+210 to 71.1 ppb
2008-04-010 ppb110 ppb
2008-04-0125.55 ppb+210 to 51.1 ppb
2008-04-0110.95 ppb210 to 21.9 ppb
2008-04-010 ppb110 ppb
2008-04-0143.4 ppb+200.7 to 86.1 ppb
2008-04-010 ppb330 ppb
2008-04-010 ppb110 ppb
2008-04-010 ppb110 ppb
2008-04-0146.2 ppb+200.9 to 91.5 ppb
2008-03-010 ppb220 ppb
2008-03-010 ppb110 ppb
2008-03-010.6 ppb100.6 ppb
2008-03-0150.35 ppb+201 to 99.7 ppb
2008-03-010 ppb110 ppb
2008-02-010 ppb110 ppb
2008-02-010 ppb110 ppb
2008-02-010.6 ppb100.6 ppb
2008-02-011.2 ppb101.2 ppb
2008-02-010 ppb330 ppb
2008-02-010 ppb110 ppb
2008-01-0141.45 ppb+210 to 82.9 ppb
2008-01-0128.5 ppb+210 to 57 ppb
2008-01-010 ppb110 ppb
2008-01-0114.6 ppb210 to 29.2 ppb
2008-01-0151.3 ppb+200.6 to 102 ppb
2008-01-0137 ppb+201 to 73 ppb
2008-01-011.5 ppb101.5 ppb
2007-12-010.5 ppb200.5 ppb
2007-12-010.8 ppb100.8 ppb
2007-12-010 ppb220 ppb
2007-12-010 ppb440 ppb
2007-12-0124.47 ppb+620 to 72.3 ppb
2007-12-010 ppb440 ppb
2007-12-010 ppb220 ppb
2007-12-010.9 ppb200.9 ppb
2007-11-010.6 ppb200.6 ppb
2007-11-010 ppb440 ppb
2007-11-011.2 ppb201.2 ppb
2007-11-010 ppb440 ppb
2007-11-011.2 ppb201.2 ppb
2007-11-010 ppb440 ppb
2007-10-010.8 ppb100.8 ppb
2007-10-011.2 ppb101.2 ppb
2007-10-014.7 ppb104.7 ppb
2007-10-0144.45 ppb+401.5 to 87.4 ppb
2007-10-0128.1 ppb+640 to 99.6 ppb
2007-10-0142.1 ppb+420 to 84.2 ppb
2007-10-010.8 ppb100.8 ppb
2007-10-010 ppb110 ppb
2007-09-0150 ppb+401.5 to 98.5 ppb
2007-09-010 ppb110 ppb
2007-09-012.3 ppb202.3 ppb
2007-09-011.8 ppb101.8 ppb
2007-09-010.8 ppb100.8 ppb
2007-09-010 ppb220 ppb
2007-09-011.5 ppb101.5 ppb
2007-09-011.5 ppb101.5 ppb
2007-09-0178.9 ppb+2061.3 to 96.5 ppb
2007-09-010 ppb110 ppb
2007-09-013.1 ppb103.1 ppb
2007-09-010 ppb110 ppb
2007-08-010 ppb220 ppb
2007-08-013.6 ppb103.6 ppb
2007-08-011.4 ppb101.4 ppb
2007-08-010 ppb110 ppb
2007-08-0155.3 ppb+200.6 to 110 ppb
2007-08-0130.23 ppb+301.6 to 86.5 ppb
2007-08-011.4 ppb101.4 ppb
2007-08-010 ppb330 ppb
2007-08-0132.67 ppb+301.6 to 93.3 ppb
2007-07-010 ppb110 ppb
2007-07-013.1 ppb103.1 ppb
2007-07-011.15 ppb210 to 2.3 ppb
2007-07-013.2 ppb103.2 ppb
2007-07-010.4 ppb210 to 0.8 ppb
2007-07-010 ppb110 ppb
2007-06-011.3 ppb210 to 2.6 ppb
2007-06-010.8 ppb210 to 1.6 ppb
2007-06-011.4 ppb101.4 ppb
2007-06-0117.75 ppb+620 to 99.9 ppb
2007-05-010 ppb110 ppb
2007-05-011 ppb101 ppb
2007-05-010 ppb110 ppb
2007-05-010 ppb110 ppb
2007-04-011.4 ppb101.4 ppb
2007-04-010.55 ppb210 to 1.1 ppb
2007-04-010 ppb110 ppb
2007-03-011.5 ppb101.5 ppb
2007-03-010 ppb110 ppb
2007-03-010 ppb110 ppb
2007-03-010.9 ppb100.9 ppb
2007-02-010 ppb110 ppb
2007-02-010 ppb110 ppb
2007-02-011.1 ppb101.1 ppb
2007-02-011.3 ppb101.3 ppb
2007-02-011.5 ppb101.5 ppb
2007-01-010.7 ppb100.7 ppb
2007-01-0146.2 ppb+201.1 to 91.3 ppb
2007-01-0116.95 ppb+210 to 33.9 ppb
2007-01-010 ppb110 ppb
2006-12-010 ppb110 ppb
2006-12-010 ppb110 ppb
2006-12-011.2 ppb101.2 ppb
2006-12-011.7 ppb101.7 ppb
2006-12-010 ppb220 ppb
2006-11-010 ppb220 ppb
2006-11-010 ppb110 ppb
2006-11-010 ppb110 ppb
2006-11-011.2 ppb201 to 1.4 ppb
2006-10-0139.45 ppb+200.6 to 78.3 ppb
2006-10-0147.2 ppb+200.6 to 93.8 ppb
2006-10-0152.8 ppb+202.6 to 103 ppb
2006-10-010 ppb110 ppb
2006-10-010 ppb110 ppb
2006-10-011.4 ppb101.4 ppb
2006-10-010 ppb110 ppb
2006-10-011.1 ppb101.1 ppb
2006-10-0155.1 ppb+201.2 to 109 ppb
2006-09-010 ppb110 ppb
2006-09-011.5 ppb101.5 ppb
2006-09-018.7 ppb310 to 24.8 ppb
2006-09-0138.35 ppb+210 to 76.7 ppb
2006-09-010 ppb110 ppb
2006-08-010 ppb110 ppb
2006-08-010.45 ppb210 to 0.9 ppb
2006-08-010 ppb110 ppb
2006-08-0155.9 ppb+201.8 to 110 ppb
2006-07-010 ppb110 ppb
2006-07-010 ppb110 ppb
2006-07-0157 ppb+1057 ppb
2006-07-010 ppb110 ppb
2006-07-0150 ppb+210 to 100 ppb
2006-07-0155.85 ppb+201.7 to 110 ppb
2006-06-0155.49 ppb+200.98 to 110 ppb
2006-06-010 ppb110 ppb
2006-06-010 ppb110 ppb
2006-06-0137.86 ppb+501.1 to 93 ppb
2006-06-010 ppb110 ppb
2006-05-0124.67 ppb+310 to 37 ppb
2006-05-010.61 ppb100.61 ppb
2006-05-0162.43 ppb+301.3 to 93 ppb
2006-05-010 ppb110 ppb
2006-05-0128.67 ppb+310 to 43 ppb
2006-05-010.92 ppb100.92 ppb
2006-05-010 ppb110 ppb
2006-05-010 ppb110 ppb
2006-04-010 ppb220 ppb
2006-04-0140.5 ppb+210 to 81 ppb
2006-04-0140.5 ppb+210 to 81 ppb
2006-04-011.4 ppb101.4 ppb
2006-04-010 ppb110 ppb
2006-04-010 ppb110 ppb
2006-04-0165.33 ppb+310 to 98 ppb
2006-04-010 ppb110 ppb
2006-03-0141 ppb+210 to 82 ppb
2006-03-010.7 ppb100.7 ppb
2006-03-010 ppb110 ppb
2006-03-0149.5 ppb+210 to 99 ppb
2006-03-010 ppb220 ppb
2006-03-0146.44 ppb+200.87 to 92 ppb
2006-03-0141.29 ppb+200.57 to 82 ppb
2006-03-010 ppb110 ppb
2006-02-0141 ppb+210 to 82 ppb
2006-02-010 ppb110 ppb
2006-02-010 ppb110 ppb
2006-02-0120 ppb+320 to 60 ppb
2006-02-0139.95 ppb+200.9 to 79 ppb
2006-02-010 ppb220 ppb
2006-01-010 ppb110 ppb
2006-01-0147.8 ppb+200.6 to 95 ppb
2006-01-010 ppb220 ppb
2006-01-0142.5 ppb+210 to 85 ppb
2006-01-010 ppb110 ppb
2006-01-0130 ppb+210 to 60 ppb
2006-01-010 ppb110 ppb
2006-01-0143 ppb+210 to 86 ppb