Trichloroacetic acid
Bossier City Water System
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 4.92 ppb | 64 | 60 | ND - 32.2 ppb |
| 2019 | 4.28 ppb | 64 | 64 | 0.700 ppb - 22.7 ppb |
| 2020 | 1.20 ppb | 32 | 32 | 0.660 ppb - 1.90 ppb |
| 2021 | 1.93 ppb | 32 | 31 | ND - 6.40 ppb |
| 2022 | 2.53 ppb | 32 | 32 | 0.700 ppb - 4.30 ppb |
| 2023 | 1.83 ppb | 32 | 32 | 0.750 ppb - 3.00 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.1 ppb
The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to reproduction and child development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-12 | 35373898001 | 1.50 ppb |
| 2018-02-12 | 35373898002 | 1.60 ppb |
| 2018-02-12 | 35373898003 | 1.60 ppb |
| 2018-02-12 | 35373898005 | 1.50 ppb |
| 2018-02-12 | 35373898006 | 1.60 ppb |
| 2018-02-12 | 35373898007 | 1.50 ppb |
| 2018-02-12 | 35373898008 | 1.60 ppb |
| 2018-02-12 | 35373898001 | 1.50 ppb |
| 2018-02-12 | 35373898002 | 1.60 ppb |
| 2018-02-12 | 35373898003 | 1.60 ppb |
| 2018-02-12 | 35373898005 | 1.50 ppb |
| 2018-02-12 | 35373898006 | 1.60 ppb |
| 2018-02-12 | 35373898007 | 1.50 ppb |
| 2018-02-12 | 35373898008 | 1.60 ppb |
| 2018-02-15 | 35375104001 | 0.670 ppb |
| 2018-02-15 | 35375104001 | 0.670 ppb |
| 2018-05-17 | 35393259001 | 32.2 ppb |
| 2018-05-17 | 35393259002 | 1.70 ppb |
| 2018-05-17 | 35393259003 | 1.50 ppb |
| 2018-05-17 | 35393259004 | 1.70 ppb |
| 2018-05-17 | 35393259005 | 32.0 ppb |
| 2018-05-17 | 35393259006 | 1.70 ppb |
| 2018-05-17 | 35393259007 | 2.00 ppb |
| 2018-05-17 | 35393259008 | 1.70 ppb |
| 2018-05-17 | 35393259001 | 32.2 ppb |
| 2018-05-17 | 35393259002 | 1.70 ppb |
| 2018-05-17 | 35393259003 | 1.50 ppb |
| 2018-05-17 | 35393259004 | 1.70 ppb |
| 2018-05-17 | 35393259005 | 32.0 ppb |
| 2018-05-17 | 35393259006 | 1.70 ppb |
| 2018-05-17 | 35393259007 | 2.00 ppb |
| 2018-05-17 | 35393259008 | 1.70 ppb |
| 2018-08-16 | 35412053001 | 1.50 ppb |
| 2018-08-16 | 35412053002 | 1.70 ppb |
| 2018-08-16 | 35412053003 | 1.50 ppb |
| 2018-08-16 | 35412053004 | 0.390 ppb |
| 2018-08-16 | 35412053005 | ND |
| 2018-08-16 | 35412053006 | 1.70 ppb |
| 2018-08-16 | 35412053007 | ND |
| 2018-08-16 | 35412053008 | 0.400 ppb |
| 2018-08-16 | 35412053001 | 1.50 ppb |
| 2018-08-16 | 35412053002 | 1.70 ppb |
| 2018-08-16 | 35412053003 | 1.50 ppb |
| 2018-08-16 | 35412053004 | 0.390 ppb |
| 2018-08-16 | 35412053005 | ND |
| 2018-08-16 | 35412053006 | 1.70 ppb |
| 2018-08-16 | 35412053007 | ND |
| 2018-08-16 | 35412053008 | 0.400 ppb |
| 2018-11-01 | 35428177001 | 4.00 ppb |
| 2018-11-01 | 35428177002 | 6.60 ppb |
| 2018-11-01 | 35428177003 | 7.00 ppb |
| 2018-11-01 | 35428177004 | 5.40 ppb |
| 2018-11-01 | 35428177005 | 17.4 ppb |
| 2018-11-01 | 35428177006 | 8.80 ppb |
| 2018-11-01 | 35428177007 | 8.40 ppb |
| 2018-11-01 | 35428177008 | 6.60 ppb |
| 2018-11-01 | 35428177001 | 4.00 ppb |
| 2018-11-01 | 35428177002 | 6.60 ppb |
| 2018-11-01 | 35428177003 | 7.00 ppb |
| 2018-11-01 | 35428177004 | 5.40 ppb |
| 2018-11-01 | 35428177005 | 17.4 ppb |
| 2018-11-01 | 35428177006 | 8.80 ppb |
| 2018-11-01 | 35428177007 | 8.40 ppb |
| 2018-11-01 | 35428177008 | 6.60 ppb |
| 2019-02-21 | 35450242001 | 6.40 ppb |
| 2019-02-21 | 35450242002 | 12.2 ppb |
| 2019-02-21 | 35450242003 | 9.20 ppb |
| 2019-02-21 | 35450242004 | 22.7 ppb |
| 2019-02-21 | 35450242005 | 17.7 ppb |
| 2019-02-21 | 35450242006 | 13.0 ppb |
| 2019-02-21 | 35450242007 | 14.6 ppb |
| 2019-02-21 | 35450242008 | 11.8 ppb |
| 2019-02-21 | 35450242001 | 6.40 ppb |
| 2019-02-21 | 35450242002 | 12.2 ppb |
| 2019-02-21 | 35450242003 | 9.20 ppb |
| 2019-02-21 | 35450242004 | 22.7 ppb |
| 2019-02-21 | 35450242005 | 17.7 ppb |
| 2019-02-21 | 35450242006 | 13.0 ppb |
| 2019-02-21 | 35450242007 | 14.6 ppb |
| 2019-02-21 | 35450242008 | 11.8 ppb |
| 2019-05-10 | 35468309001 | 1.30 ppb |
| 2019-05-10 | 35468309002 | 1.30 ppb |
| 2019-05-10 | 35468309003 | 1.40 ppb |
| 2019-05-10 | 35468309004 | 1.30 ppb |
| 2019-05-10 | 35468309005 | 1.30 ppb |
| 2019-05-10 | 35468309006 | 1.30 ppb |
| 2019-05-10 | 35468309007 | 1.30 ppb |
| 2019-05-10 | 35468309008 | 1.30 ppb |
| 2019-05-10 | 35468309001 | 1.30 ppb |
| 2019-05-10 | 35468309002 | 1.30 ppb |
| 2019-05-10 | 35468309003 | 1.40 ppb |
| 2019-05-10 | 35468309004 | 1.30 ppb |
| 2019-05-10 | 35468309005 | 1.30 ppb |
| 2019-05-10 | 35468309006 | 1.30 ppb |
| 2019-05-10 | 35468309007 | 1.30 ppb |
| 2019-05-10 | 35468309008 | 1.30 ppb |
| 2019-08-02 | 35487184001 | 1.20 ppb |
| 2019-08-02 | 35487184002 | 1.80 ppb |
| 2019-08-02 | 35487184003 | 1.30 ppb |
| 2019-08-02 | 35487184004 | 1.30 ppb |
| 2019-08-02 | 35487184005 | 1.70 ppb |
| 2019-08-02 | 35487184006 | 1.60 ppb |
| 2019-08-02 | 35487184007 | 1.20 ppb |
| 2019-08-02 | 35487184008 | 1.50 ppb |
| 2019-08-02 | 35487184001 | 1.20 ppb |
| 2019-08-02 | 35487184002 | 1.80 ppb |
| 2019-08-02 | 35487184003 | 1.30 ppb |
| 2019-08-02 | 35487184004 | 1.30 ppb |
| 2019-08-02 | 35487184005 | 1.70 ppb |
| 2019-08-02 | 35487184006 | 1.60 ppb |
| 2019-08-02 | 35487184007 | 1.20 ppb |
| 2019-08-02 | 35487184008 | 1.50 ppb |
| 2019-11-05 | 35510527001 | 1.40 ppb |
| 2019-11-05 | 35510527002 | 0.730 ppb |
| 2019-11-05 | 35510527003 | 0.870 ppb |
| 2019-11-05 | 35510527004 | 0.870 ppb |
| 2019-11-05 | 35510527005 | 0.840 ppb |
| 2019-11-05 | 35510527006 | 0.850 ppb |
| 2019-11-05 | 35510527007 | 0.700 ppb |
| 2019-11-05 | 35510527008 | 0.890 ppb |
| 2019-11-05 | 35510527001 | 1.40 ppb |
| 2019-11-05 | 35510527002 | 0.730 ppb |
| 2019-11-05 | 35510527003 | 0.870 ppb |
| 2019-11-05 | 35510527004 | 0.870 ppb |
| 2019-11-05 | 35510527005 | 0.840 ppb |
| 2019-11-05 | 35510527006 | 0.850 ppb |
| 2019-11-05 | 35510527007 | 0.700 ppb |
| 2019-11-05 | 35510527008 | 0.890 ppb |
| 2020-02-05 | 35529340001 | 1.20 ppb |
| 2020-02-05 | 35529340002 | 1.30 ppb |
| 2020-02-05 | 35529340003 | 1.60 ppb |
| 2020-02-05 | 35529340004 | 1.70 ppb |
| 2020-02-05 | 35529340005 | 0.850 ppb |
| 2020-02-05 | 35529340006 | 0.770 ppb |
| 2020-02-05 | 35529340007 | 0.930 ppb |
| 2020-02-05 | 35529340008 | 1.000 ppb |
| 2020-05-18 | 35550987001 | 1.10 ppb |
| 2020-05-18 | 35550987002 | 1.20 ppb |
| 2020-05-18 | 35550987003 | 1.40 ppb |
| 2020-05-18 | 35550987004 | 1.90 ppb |
| 2020-05-18 | 35550987005 | 1.90 ppb |
| 2020-05-18 | 35550987006 | 1.30 ppb |
| 2020-05-18 | 35550987007 | 1.40 ppb |
| 2020-05-18 | 35550987008 | 1.60 ppb |
| 2020-08-11 | 35570402001 | 0.890 ppb |
| 2020-08-11 | 35570402002 | 0.890 ppb |
| 2020-08-11 | 35570402003 | 0.940 ppb |
| 2020-08-11 | 35570402004 | 0.870 ppb |
| 2020-08-11 | 35570402005 | 0.890 ppb |
| 2020-08-11 | 35570402006 | 0.660 ppb |
| 2020-08-11 | 35570402007 | 0.750 ppb |
| 2020-08-11 | 35570402008 | 0.700 ppb |
| 2020-11-02 | 35589235001 | 1.30 ppb |
| 2020-11-02 | 35589235002 | 1.50 ppb |
| 2020-11-02 | 35589235003 | 1.30 ppb |
| 2020-11-02 | 35589235004 | 1.30 ppb |
| 2020-11-02 | 35589235005 | 1.40 ppb |
| 2020-11-02 | 35589235006 | 1.30 ppb |
| 2020-11-02 | 35589235007 | 1.30 ppb |
| 2020-11-02 | 35589235008 | 1.20 ppb |
| 2021-02-24 | 35615349001 | 0.920 ppb |
| 2021-02-24 | 35615349002 | 1.20 ppb |
| 2021-02-24 | 35615349003 | 1.60 ppb |
| 2021-02-24 | 35615349004 | 1.20 ppb |
| 2021-02-24 | 35615349005 | 0.840 ppb |
| 2021-02-24 | 35615349006 | 0.980 ppb |
| 2021-02-24 | 35615349007 | 0.790 ppb |
| 2021-02-24 | 35615349008 | 0.840 ppb |
| 2021-05-11 | 35632788001 | 6.40 ppb |
| 2021-05-11 | 35632788002 | 4.00 ppb |
| 2021-05-11 | 35632788003 | 4.50 ppb |
| 2021-05-11 | 35632788004 | 3.70 ppb |
| 2021-05-11 | 35632788005 | 3.70 ppb |
| 2021-05-11 | 35632788006 | 3.60 ppb |
| 2021-05-11 | 35632788007 | 4.20 ppb |
| 2021-05-11 | 35632788008 | 4.40 ppb |
| 2021-08-17 | 35656440001 | ND |
| 2021-08-17 | 35656440002 | 1.70 ppb |
| 2021-08-17 | 35656440003 | 1.40 ppb |
| 2021-08-17 | 35656440004 | 1.70 ppb |
| 2021-08-17 | 35656440005 | 1.80 ppb |
| 2021-08-17 | 35656440006 | 1.80 ppb |
| 2021-08-17 | 35656440007 | 1.80 ppb |
| 2021-08-17 | 35656440008 | 1.60 ppb |
| 2021-11-03 | 35676703001 | 0.960 ppb |
| 2021-11-03 | 35676703002 | 0.800 ppb |
| 2021-11-03 | 35676703003 | 0.980 ppb |
| 2021-11-03 | 35676703004 | 0.980 ppb |
| 2021-11-03 | 35676703005 | 0.900 ppb |
| 2021-11-03 | 35676703006 | 0.790 ppb |
| 2021-11-03 | 35676703007 | 0.800 ppb |
| 2021-11-03 | 35676703008 | 0.910 ppb |
| 2022-02-08 | 35695548001 | 2.20 ppb |
| 2022-02-08 | 35695548002 | 3.00 ppb |
| 2022-02-08 | 35695548003 | 2.60 ppb |
| 2022-02-08 | 35695548004 | 2.90 ppb |
| 2022-02-08 | 35695548005 | 4.00 ppb |
| 2022-02-08 | 35695548006 | 3.10 ppb |
| 2022-02-08 | 35695548007 | 3.20 ppb |
| 2022-02-08 | 35695548008 | 3.00 ppb |
| 2022-05-10 | 35717136001 | 2.50 ppb |
| 2022-05-10 | 35717136002 | 2.40 ppb |
| 2022-05-10 | 35717136003 | 2.70 ppb |
| 2022-05-10 | 35717136004 | 3.50 ppb |
| 2022-05-10 | 35717136005 | 3.00 ppb |
| 2022-05-10 | 35717136006 | 2.70 ppb |
| 2022-05-10 | 35717136007 | 2.70 ppb |
| 2022-05-10 | 35717136008 | 2.60 ppb |
| 2022-08-02 | 35736243001 | 3.50 ppb |
| 2022-08-02 | 35736243002 | 4.30 ppb |
| 2022-08-02 | 35736243003 | 3.90 ppb |
| 2022-08-02 | 35736243004 | 3.20 ppb |
| 2022-08-02 | 35736243005 | 4.20 ppb |
| 2022-08-02 | 35736243006 | 3.40 ppb |
| 2022-08-02 | 35736243007 | 2.80 ppb |
| 2022-08-02 | 35736243008 | 3.20 ppb |
| 2022-11-01 | 35757085001 | 0.750 ppb |
| 2022-11-01 | 35757085002 | 0.700 ppb |
| 2022-11-01 | 35757085003 | 0.810 ppb |
| 2022-11-01 | 35757085004 | 0.750 ppb |
| 2022-11-01 | 35757085005 | 0.760 ppb |
| 2022-11-01 | 35757085006 | 0.950 ppb |
| 2022-11-01 | 35757085007 | 0.790 ppb |
| 2022-11-01 | 35757085008 | 0.760 ppb |
| 2023-02-06 | 35777795001 | 1.50 ppb |
| 2023-02-06 | 35777795002 | 2.20 ppb |
| 2023-02-06 | 35777795003 | 1.90 ppb |
| 2023-02-06 | 35777795004 | 2.20 ppb |
| 2023-02-06 | 35777795005 | 3.00 ppb |
| 2023-02-06 | 35777795006 | 2.10 ppb |
| 2023-02-06 | 35777795007 | 2.50 ppb |
| 2023-02-06 | 35777795008 | 1.70 ppb |
| 2023-05-09 | 35798480001 | 2.40 ppb |
| 2023-05-09 | 35798480002 | 2.20 ppb |
| 2023-05-09 | 35798480003 | 2.30 ppb |
| 2023-05-09 | 35798480004 | 2.20 ppb |
| 2023-05-09 | 35798480005 | 2.30 ppb |
| 2023-05-09 | 35798480006 | 2.40 ppb |
| 2023-05-09 | 35798480008 | 2.30 ppb |
| 2023-05-11 | 35799397001 | 2.70 ppb |
| 2023-08-15 | 35821320001 | 1.60 ppb |
| 2023-08-15 | 35821320002 | 1.70 ppb |
| 2023-08-15 | 35821320003 | 1.80 ppb |
| 2023-08-15 | 35821320004 | 1.90 ppb |
| 2023-08-15 | 35821320005 | 2.10 ppb |
| 2023-08-15 | 35821320006 | 1.80 ppb |
| 2023-08-15 | 35821320007 | 2.10 ppb |
| 2023-08-15 | 35821320008 | 2.00 ppb |
| 2023-11-07 | 35840060001 | 1.90 ppb |
| 2023-11-07 | 35840060002 | 0.800 ppb |
| 2023-11-07 | 35840060003 | 0.830 ppb |
| 2023-11-07 | 35840060004 | 1.000 ppb |
| 2023-11-07 | 35840060005 | 0.890 ppb |
| 2023-11-07 | 35840060006 | 0.820 ppb |
| 2023-11-07 | 35840060007 | 0.750 ppb |
| 2023-11-07 | 35840060008 | 0.820 ppb |