Trichloroacetic acid
City of Corpus Christi
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.
288
Samples
0
Samples exceeding legal limit (MCL)
268
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 3.64 ppb | 48 | 48 | 2.00 ppb - 6.80 ppb |
| 2015 | 6.05 ppb | 48 | 48 | 1.30 ppb - 14.1 ppb |
| 2016 | 2.89 ppb | 48 | 48 | 2.00 ppb - 5.30 ppb |
| 2017 | 2.44 ppb | 48 | 48 | 1.10 ppb - 4.90 ppb |
| 2018 | 1.24 ppb | 48 | 38 | ND - 2.10 ppb |
| 2019 | 2.13 ppb | 48 | 38 | ND - 4.00 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 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.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.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-24 | AC48212 | 3.90 ppb |
| 2014-03-24 | AC48208 | 3.40 ppb |
| 2014-03-24 | AC48214 | 3.70 ppb |
| 2014-03-24 | AC48210 | 3.80 ppb |
| 2014-03-24 | AC48225 | 3.30 ppb |
| 2014-03-24 | AC48211 | 3.00 ppb |
| 2014-03-24 | AC48215 | 3.70 ppb |
| 2014-03-24 | AC48209 | 3.70 ppb |
| 2014-03-24 | AC48216 | 3.80 ppb |
| 2014-03-24 | AC48207 | 3.70 ppb |
| 2014-03-24 | AC48213 | 3.60 ppb |
| 2014-03-24 | AC48226 | 3.10 ppb |
| 2014-05-21 | AC54959 | 3.10 ppb |
| 2014-05-21 | AC54963 | 2.80 ppb |
| 2014-05-21 | AC54968 | 3.00 ppb |
| 2014-05-21 | AC54969 | 2.60 ppb |
| 2014-05-21 | AC54974 | 2.30 ppb |
| 2014-05-21 | AC54958 | 3.50 ppb |
| 2014-05-21 | AC54961 | 3.10 ppb |
| 2014-05-21 | AC54960 | 2.90 ppb |
| 2014-05-21 | AC54957 | 3.10 ppb |
| 2014-05-21 | AC54973 | 2.60 ppb |
| 2014-05-21 | AC54970 | 2.80 ppb |
| 2014-05-21 | AC54962 | 2.50 ppb |
| 2014-08-07 | AC62633 | 6.80 ppb |
| 2014-08-07 | AC62642 | 4.60 ppb |
| 2014-08-07 | AC62634 | 5.60 ppb |
| 2014-08-07 | AC62650 | 5.10 ppb |
| 2014-08-07 | AC62644 | 5.10 ppb |
| 2014-08-07 | AC62647 | 3.50 ppb |
| 2014-08-07 | AC62658 | 4.80 ppb |
| 2014-08-07 | AC62632 | 6.50 ppb |
| 2014-08-07 | AC62646 | 4.90 ppb |
| 2014-08-07 | AC62649 | 4.40 ppb |
| 2014-08-07 | AC62660 | 5.10 ppb |
| 2014-08-07 | AC62630 | 6.10 ppb |
| 2014-11-14 | AC72154 | 2.80 ppb |
| 2014-11-14 | AC72123 | 3.20 ppb |
| 2014-11-14 | AC72155 | 2.00 ppb |
| 2014-11-14 | AC72127 | 2.90 ppb |
| 2014-11-14 | AC72152 | 3.00 ppb |
| 2014-11-14 | AC72156 | 2.60 ppb |
| 2014-11-14 | AC72187 | 3.60 ppb |
| 2014-11-14 | AC72178 | 2.90 ppb |
| 2014-11-14 | AC72126 | 3.40 ppb |
| 2014-11-14 | AC72125 | 2.90 ppb |
| 2014-11-14 | AC72188 | 3.10 ppb |
| 2014-11-14 | AC72153 | 2.80 ppb |
| 2015-02-17 | AC80688 | 2.70 ppb |
| 2015-02-17 | AC80685 | 3.30 ppb |
| 2015-02-17 | AC80683 | 3.50 ppb |
| 2015-02-17 | AC80679 | 3.60 ppb |
| 2015-02-17 | AC80689 | 2.40 ppb |
| 2015-02-17 | AC80686 | 3.50 ppb |
| 2015-02-17 | AC80697 | 3.30 ppb |
| 2015-02-17 | AC80696 | 4.50 ppb |
| 2015-02-17 | AC80690 | 2.60 ppb |
| 2015-02-17 | AC80684 | 3.00 ppb |
| 2015-02-17 | AC80695 | 2.40 ppb |
| 2015-02-17 | AC80687 | 3.20 ppb |
| 2015-04-21 | AC89004 | 12.7 ppb |
| 2015-04-21 | AC88996 | 14.1 ppb |
| 2015-04-21 | AC89002 | 11.6 ppb |
| 2015-04-21 | AC89001 | 12.3 ppb |
| 2015-04-21 | AC89000 | 10.5 ppb |
| 2015-04-21 | AC88992 | 12.2 ppb |
| 2015-04-21 | AC88994 | 12.5 ppb |
| 2015-04-21 | AC88995 | 13.3 ppb |
| 2015-04-21 | AC88997 | 13.6 ppb |
| 2015-04-21 | AC88998 | 11.2 ppb |
| 2015-04-21 | AC88999 | 13.0 ppb |
| 2015-04-21 | AC88993 | 11.0 ppb |
| 2015-08-13 | AD04040 | 6.70 ppb |
| 2015-08-13 | AD04084 | 8.80 ppb |
| 2015-08-13 | AD04085 | 5.40 ppb |
| 2015-08-13 | AD04039 | 8.20 ppb |
| 2015-08-13 | AD04055 | 6.40 ppb |
| 2015-08-13 | AD04044 | 7.30 ppb |
| 2015-08-13 | AD04043 | 6.60 ppb |
| 2015-08-13 | AD04042 | 7.10 ppb |
| 2015-08-13 | AD04041 | 7.30 ppb |
| 2015-08-13 | AD04054 | 7.40 ppb |
| 2015-08-13 | AD04047 | 6.90 ppb |
| 2015-08-13 | AD04045 | 7.90 ppb |
| 2015-11-30 | AD14713 | 1.30 ppb |
| 2015-11-30 | AD14711 | 1.40 ppb |
| 2015-11-30 | AD14696 | 2.00 ppb |
| 2015-11-30 | AD14716 | 1.50 ppb |
| 2015-11-30 | AD14719 | 1.40 ppb |
| 2015-11-30 | AD14710 | 1.30 ppb |
| 2015-11-30 | AD14718 | 1.60 ppb |
| 2015-11-30 | AD14717 | 1.60 ppb |
| 2015-11-30 | AD14715 | 1.50 ppb |
| 2015-11-30 | AD14697 | 2.00 ppb |
| 2015-11-30 | AD14712 | 1.50 ppb |
| 2015-11-30 | AD14714 | 1.50 ppb |
| 2016-02-10 | AD22991 | 2.50 ppb |
| 2016-02-10 | AD22985 | 2.50 ppb |
| 2016-02-10 | AD22986 | 2.00 ppb |
| 2016-02-10 | AD22989 | 2.80 ppb |
| 2016-02-10 | AD22988 | 2.60 ppb |
| 2016-02-10 | AD22987 | 2.40 ppb |
| 2016-02-10 | AD22993 | 2.40 ppb |
| 2016-02-10 | AD22992 | 2.40 ppb |
| 2016-02-10 | AD22983 | 2.50 ppb |
| 2016-02-10 | AD22982 | 2.70 ppb |
| 2016-02-10 | AD22984 | 2.10 ppb |
| 2016-02-10 | AD22990 | 2.40 ppb |
| 2016-04-14 | AD33147 | 2.30 ppb |
| 2016-04-14 | AD33150 | 2.40 ppb |
| 2016-04-14 | AD33156 | 2.50 ppb |
| 2016-04-14 | AD33149 | 2.50 ppb |
| 2016-04-14 | AD33148 | 2.50 ppb |
| 2016-04-14 | AD33152 | 2.50 ppb |
| 2016-04-14 | AD33155 | 2.60 ppb |
| 2016-04-14 | AD33151 | 2.30 ppb |
| 2016-04-14 | AD33153 | 2.50 ppb |
| 2016-04-14 | AD33146 | 2.50 ppb |
| 2016-04-14 | AD33154 | 2.70 ppb |
| 2016-04-14 | AD33145 | 2.50 ppb |
| 2016-09-14 | AD49369 | 3.30 ppb |
| 2016-09-14 | AD49366 | 2.80 ppb |
| 2016-09-14 | AD49370 | 3.50 ppb |
| 2016-09-14 | AD49359 | 3.40 ppb |
| 2016-09-14 | AD49362 | 3.50 ppb |
| 2016-09-14 | AD49368 | 3.10 ppb |
| 2016-09-14 | AD49363 | 3.20 ppb |
| 2016-09-14 | AD49367 | 3.30 ppb |
| 2016-09-14 | AD49360 | 2.50 ppb |
| 2016-09-14 | AD49365 | 3.40 ppb |
| 2016-09-14 | AD49361 | 3.30 ppb |
| 2016-09-14 | AD49364 | 3.20 ppb |
| 2016-11-08 | AD57061 | 3.20 ppb |
| 2016-11-08 | AD57069 | 5.30 ppb |
| 2016-11-08 | AD57056 | 3.50 ppb |
| 2016-11-08 | AD57063 | 3.50 ppb |
| 2016-11-08 | AD57062 | 3.20 ppb |
| 2016-11-08 | AD57065 | 3.20 ppb |
| 2016-11-08 | AD57068 | 3.20 ppb |
| 2016-11-08 | AD57060 | 2.80 ppb |
| 2016-11-08 | AD57059 | 2.90 ppb |
| 2016-11-08 | AD57057 | 3.20 ppb |
| 2016-11-08 | AD57055 | 3.60 ppb |
| 2016-11-08 | AD57064 | 3.30 ppb |
| 2017-01-18 | AD65327 | 3.20 ppb |
| 2017-01-18 | AD65326 | 2.80 ppb |
| 2017-01-18 | AD65325 | 3.10 ppb |
| 2017-01-18 | AD65324 | 4.90 ppb |
| 2017-01-18 | AD65337 | 2.70 ppb |
| 2017-01-18 | AD65336 | 3.00 ppb |
| 2017-01-18 | AD65335 | 3.30 ppb |
| 2017-01-18 | AD65350 | 3.10 ppb |
| 2017-01-18 | AD65351 | 3.20 ppb |
| 2017-01-18 | AD65328 | 3.30 ppb |
| 2017-01-18 | AD65331 | 3.50 ppb |
| 2017-01-18 | AD65333 | 3.40 ppb |
| 2017-05-16 | AD84432 | 2.60 ppb |
| 2017-05-16 | AD84426 | 2.20 ppb |
| 2017-05-16 | AD84429 | 2.40 ppb |
| 2017-05-16 | AD84424 | 2.80 ppb |
| 2017-05-16 | AD84422 | 2.30 ppb |
| 2017-05-16 | AD84423 | 2.20 ppb |
| 2017-05-16 | AD84427 | 2.40 ppb |
| 2017-05-16 | AD84433 | 2.40 ppb |
| 2017-05-16 | AD84425 | 2.40 ppb |
| 2017-05-16 | AD84430 | 2.10 ppb |
| 2017-05-16 | AD84431 | 2.50 ppb |
| 2017-05-16 | AD84428 | 2.20 ppb |
| 2017-08-23 | AD93942 | 1.50 ppb |
| 2017-08-23 | AD93937 | 1.10 ppb |
| 2017-08-23 | AD93940 | 1.60 ppb |
| 2017-08-23 | AD93944 | 1.80 ppb |
| 2017-08-23 | AD93952 | 1.70 ppb |
| 2017-08-23 | AD93950 | 1.80 ppb |
| 2017-08-23 | AD93938 | 1.20 ppb |
| 2017-08-23 | AD93936 | 1.20 ppb |
| 2017-08-23 | AD93948 | 1.80 ppb |
| 2017-08-23 | AD93946 | 1.70 ppb |
| 2017-08-23 | AD93941 | 1.60 ppb |
| 2017-08-23 | AD93953 | 1.50 ppb |
| 2017-11-14 | AE04715 | 2.10 ppb |
| 2017-11-14 | AE04731 | 3.00 ppb |
| 2017-11-14 | AE04734 | 2.40 ppb |
| 2017-11-14 | AE04733 | 2.50 ppb |
| 2017-11-14 | AE04724 | 2.40 ppb |
| 2017-11-14 | AE04723 | 3.00 ppb |
| 2017-11-14 | AE04721 | 2.60 ppb |
| 2017-11-14 | AE04735 | 2.70 ppb |
| 2017-11-14 | AE04716 | 2.40 ppb |
| 2017-11-14 | AE04722 | 2.80 ppb |
| 2017-11-14 | AE04714 | 2.30 ppb |
| 2017-11-14 | AE04732 | 2.30 ppb |
| 2018-02-06 | AE12469 | 1.70 ppb |
| 2018-02-06 | AE12475 | 1.50 ppb |
| 2018-02-06 | AE12484 | 2.10 ppb |
| 2018-02-06 | AE12483 | 2.00 ppb |
| 2018-02-06 | AE12488 | 1.80 ppb |
| 2018-02-06 | AE12470 | 1.40 ppb |
| 2018-02-06 | AE12473 | 1.60 ppb |
| 2018-02-06 | AE12482 | 1.60 ppb |
| 2018-02-06 | AE12485 | 1.90 ppb |
| 2018-02-06 | AE12471 | 1.60 ppb |
| 2018-02-06 | AE12472 | 1.60 ppb |
| 2018-02-06 | AE12477 | 1.50 ppb |
| 2018-04-24 | AE23704 | 1.70 ppb |
| 2018-04-24 | AE23702 | 1.50 ppb |
| 2018-04-24 | AE23700 | 1.50 ppb |
| 2018-04-24 | AE23706 | 2.10 ppb |
| 2018-04-24 | AE23708 | ND |
| 2018-04-24 | AE23698 | 1.70 ppb |
| 2018-04-24 | AE23699 | 2.00 ppb |
| 2018-04-24 | AE23709 | 1.80 ppb |
| 2018-04-24 | AE23707 | 1.90 ppb |
| 2018-04-24 | AE23705 | 1.80 ppb |
| 2018-04-24 | AE23701 | 1.80 ppb |
| 2018-04-24 | AE23703 | 1.60 ppb |
| 2018-07-25 | AE34477 | 1.10 ppb |
| 2018-07-25 | AE34479 | 1.20 ppb |
| 2018-07-25 | AE34458 | 1.40 ppb |
| 2018-07-25 | AE34448 | 1.40 ppb |
| 2018-07-25 | AE34461 | 1.10 ppb |
| 2018-07-25 | AE34446 | 1.60 ppb |
| 2018-07-25 | AE34484 | 1.30 ppb |
| 2018-07-25 | AE34442 | 1.40 ppb |
| 2018-07-25 | AE34445 | 1.40 ppb |
| 2018-07-25 | AE34438 | 1.60 ppb |
| 2018-07-25 | AE34483 | 1.000 ppb |
| 2018-07-25 | AE34485 | 1.20 ppb |
| 2018-10-17 | AE43784 | 1.30 ppb |
| 2018-10-17 | AE43776 | ND |
| 2018-10-17 | AE43774 | ND |
| 2018-10-17 | AE43782 | 1.60 ppb |
| 2018-10-17 | AE43777 | ND |
| 2018-10-17 | AE43781 | ND |
| 2018-10-17 | AE43773 | ND |
| 2018-10-17 | AE43783 | 1.30 ppb |
| 2018-10-17 | AE43779 | ND |
| 2018-10-17 | AE43780 | ND |
| 2018-10-17 | AE43778 | ND |
| 2018-10-17 | AE43775 | ND |
| 2019-01-23 | AE50899 | 3.60 ppb |
| 2019-01-23 | AE50910 | 3.50 ppb |
| 2019-01-23 | AE50908 | 3.70 ppb |
| 2019-01-23 | AE50901 | 3.00 ppb |
| 2019-01-23 | AE50907 | 3.60 ppb |
| 2019-01-23 | AE50906 | 3.90 ppb |
| 2019-01-23 | AE50903 | 3.70 ppb |
| 2019-01-23 | AE50904 | 4.00 ppb |
| 2019-01-23 | AE50905 | 3.90 ppb |
| 2019-01-23 | AE50902 | 3.50 ppb |
| 2019-01-23 | AE50909 | 4.00 ppb |
| 2019-01-23 | AE50900 | 4.00 ppb |
| 2019-04-17 | AE62730 | 3.20 ppb |
| 2019-04-17 | AE62732 | 2.90 ppb |
| 2019-04-17 | AE62733 | 3.60 ppb |
| 2019-04-17 | AE62731 | 3.40 ppb |
| 2019-04-17 | AE62728 | 3.20 ppb |
| 2019-04-17 | AE62737 | 3.00 ppb |
| 2019-04-17 | AE62736 | 3.60 ppb |
| 2019-04-17 | AE62734 | 3.40 ppb |
| 2019-04-17 | AE62729 | 3.40 ppb |
| 2019-04-17 | AE62727 | 3.60 ppb |
| 2019-04-17 | AE62735 | 3.40 ppb |
| 2019-04-17 | AE62738 | 3.40 ppb |
| 2019-07-30 | AE76387 | 1.70 ppb |
| 2019-07-30 | AE76400 | 1.000 ppb |
| 2019-07-30 | AE76388 | 1.50 ppb |
| 2019-07-30 | AE76401 | 1.10 ppb |
| 2019-07-30 | AE76398 | 1.20 ppb |
| 2019-07-30 | AE76396 | 1.10 ppb |
| 2019-07-30 | AE76399 | 1.20 ppb |
| 2019-07-30 | AE76385 | 1.50 ppb |
| 2019-07-30 | AE76402 | 1.10 ppb |
| 2019-07-30 | AE76397 | 1.30 ppb |
| 2019-07-30 | AE76389 | 1.70 ppb |
| 2019-07-30 | AE76395 | 1.20 ppb |
| 2019-11-19 | AE89945 | ND |
| 2019-11-19 | AE89957 | ND |
| 2019-11-19 | AE89948 | 1.000 ppb |
| 2019-11-19 | AE89944 | ND |
| 2019-11-19 | AE89959 | ND |
| 2019-11-19 | AE89960 | 1.20 ppb |
| 2019-11-19 | AE89949 | ND |
| 2019-11-19 | AE89953 | ND |
| 2019-11-19 | AE89956 | ND |
| 2019-11-19 | AE89947 | ND |
| 2019-11-19 | AE89951 | ND |
| 2019-11-19 | AE89952 | ND |