Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Minot

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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

35

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.213 ppb163ND - 1.21 ppb
2019ND160ND
20200.603 ppb165ND - 2.49 ppb
20211.25 ppb1611ND - 2.37 ppb
20220.780 ppb169ND - 1.81 ppb
20230.869 ppb167ND - 2.40 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
2018-01-1618-S36ND
2018-01-1618-S35ND
2018-01-1618-S37ND
2018-01-1618-S38ND
2018-04-1618-S5261.21 ppb
2018-04-1618-S529ND
2018-04-1618-S528ND
2018-04-1618-S5271.14 ppb
2018-07-1618-S10971.06 ppb
2018-07-1618-S1095ND
2018-07-1618-S1094ND
2018-07-1618-S1096ND
2018-10-1818-S2298ND
2018-10-1818-S2295ND
2018-10-1818-S2297ND
2018-10-1818-S2296ND
2019-01-1419-S37ND
2019-01-1419-S34ND
2019-01-1419-S36ND
2019-01-1419-S35ND
2019-04-1619-S439ND
2019-04-1619-S442ND
2019-04-1619-S440ND
2019-04-1619-S441ND
2019-07-1619-S1193ND
2019-07-1619-S1191ND
2019-07-1619-S1192ND
2019-07-1619-S1190ND
2019-10-1419-S2310ND
2019-10-1419-S2308ND
2019-10-1419-S2309ND
2019-10-2119-S2333ND
2020-01-15360287ND
2020-01-15360286ND
2020-01-15360285ND
2020-01-15360284ND
2020-04-133630741.10 ppb
2020-04-13363073ND
2020-04-13363072ND
2020-04-13363071ND
2020-07-21369619ND
2020-07-21368564ND
2020-07-21368563ND
2020-07-21369620ND
2020-10-123723522.01 ppb
2020-10-123723552.49 ppb
2020-10-123723542.12 ppb
2020-10-123723531.92 ppb
2021-01-123759062.36 ppb
2021-01-123759071.95 ppb
2021-01-123759052.24 ppb
2021-01-123759082.28 ppb
2021-04-07378767ND
2021-04-07378768ND
2021-04-07378769ND
2021-04-07378770ND
2021-07-203834001.26 ppb
2021-07-203834021.47 ppb
2021-07-203834031.22 ppb
2021-07-203834011.30 ppb
2021-10-113891072.37 ppb
2021-10-11389108ND
2021-10-113891061.86 ppb
2021-10-113891051.67 ppb
2022-01-103911821.55 ppb
2022-01-103911841.48 ppb
2022-01-103911831.75 ppb
2022-01-103911851.81 ppb
2022-04-203942311.16 ppb
2022-04-20394232ND
2022-04-20394230ND
2022-04-20394233ND
2022-07-183984121.21 ppb
2022-07-183984131.06 ppb
2022-07-183984101.26 ppb
2022-07-18398411ND
2022-10-03402547ND
2022-10-034025451.20 ppb
2022-10-03402548ND
2022-10-03402546ND
2023-01-09405822ND
2023-01-09405819ND
2023-01-09405821ND
2023-01-09405820ND
2023-04-114100721.97 ppb
2023-04-11410071ND
2023-04-114100701.48 ppb
2023-04-114100692.10 ppb
2023-07-24415069ND
2023-07-24414973ND
2023-07-24415070ND
2023-07-24414974ND
2023-10-094179171.96 ppb
2023-10-094186191.87 ppb
2023-10-094186182.12 ppb
2023-10-094186202.40 ppb