Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Grand Forks

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.

 

195

Samples

0

Samples exceeding legal limit (MCL)

148

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.36 ppb32322.53 ppb - 4.76 ppb
20194.62 ppb32322.40 ppb - 6.80 ppb
20202.21 ppb3426ND - 3.87 ppb
20210.821 ppb3319ND - 2.46 ppb
20220.607 ppb3214ND - 1.94 ppb
20231.25 ppb3225ND - 2.29 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
2018-02-1318-S2482.82 ppb
2018-02-1318-S2512.89 ppb
2018-02-1318-S2443.05 ppb
2018-02-1318-S2453.37 ppb
2018-02-1318-S2492.53 ppb
2018-02-1318-S2472.92 ppb
2018-02-1318-S2462.71 ppb
2018-02-1318-S2503.01 ppb
2018-05-1418-S7363.14 ppb
2018-05-1418-S7303.16 ppb
2018-05-1418-S7332.67 ppb
2018-05-1418-S7354.32 ppb
2018-05-1418-S7373.60 ppb
2018-05-1418-S7344.76 ppb
2018-05-1418-S7324.31 ppb
2018-05-1418-S7313.38 ppb
2018-08-2118-S18364.53 ppb
2018-08-2118-S18423.30 ppb
2018-08-2118-S18413.59 ppb
2018-08-2118-S18403.88 ppb
2018-08-2118-S18393.55 ppb
2018-08-2118-S18373.57 ppb
2018-08-2118-S18354.73 ppb
2018-08-2118-S18383.77 ppb
2018-11-1318-S23512.75 ppb
2018-11-1318-S23553.16 ppb
2018-11-1318-S23562.84 ppb
2018-11-1318-S23503.25 ppb
2018-11-1318-S23493.13 ppb
2018-11-1318-S23522.72 ppb
2018-11-1318-S23543.01 ppb
2018-11-1318-S23532.99 ppb
2019-02-1119-S1102.67 ppb
2019-02-1119-S1112.63 ppb
2019-02-1119-S1123.07 ppb
2019-02-1119-S1092.70 ppb
2019-02-1119-S1082.68 ppb
2019-02-1119-S1132.68 ppb
2019-02-1119-S1152.61 ppb
2019-02-1119-S1142.40 ppb
2019-05-1319-S5664.71 ppb
2019-05-1319-S5594.74 ppb
2019-05-1319-S5655.32 ppb
2019-05-1319-S5634.48 ppb
2019-05-1319-S5624.90 ppb
2019-05-1319-S5644.52 ppb
2019-05-1319-S5614.70 ppb
2019-05-1319-S5604.81 ppb
2019-08-1919-S17064.85 ppb
2019-08-1919-S17055.12 ppb
2019-08-1919-S16995.32 ppb
2019-08-1919-S17005.64 ppb
2019-08-1919-S17044.87 ppb
2019-08-1919-S17034.22 ppb
2019-08-1919-S17024.82 ppb
2019-08-1919-S17015.55 ppb
2019-11-1219-S24185.70 ppb
2019-11-1219-S24195.89 ppb
2019-11-1219-S24166.80 ppb
2019-11-1219-S24155.55 ppb
2019-11-1219-S24175.42 ppb
2019-11-1219-S24136.43 ppb
2019-11-1219-S24146.17 ppb
2019-11-1219-S24125.93 ppb
2020-02-113611343.48 ppb
2020-02-113611353.29 ppb
2020-02-113611363.23 ppb
2020-02-113610693.16 ppb
2020-02-113610703.12 ppb
2020-02-113610713.37 ppb
2020-02-113610723.18 ppb
2020-02-113610733.34 ppb
2020-05-123646493.87 ppb
2020-05-123646483.37 ppb
2020-05-123646503.80 ppb
2020-05-123646473.60 ppb
2020-05-123646513.64 ppb
2020-05-123646523.73 ppb
2020-05-123646533.68 ppb
2020-05-123646543.54 ppb
2020-07-093668431.58 ppb
2020-07-273685741.69 ppb
2020-08-103701402.20 ppb
2020-08-103701412.01 ppb
2020-08-103701422.28 ppb
2020-08-103701391.61 ppb
2020-08-103701432.15 ppb
2020-08-103701442.35 ppb
2020-08-103701451.65 ppb
2020-08-103701462.20 ppb
2020-11-09373150ND
2020-11-09373151ND
2020-11-09373152ND
2020-11-09373153ND
2020-11-09373154ND
2020-11-09373155ND
2020-11-09373156ND
2020-11-09373157ND
2021-02-16376777ND
2021-02-16376778ND
2021-02-16376779ND
2021-02-16376780ND
2021-02-16376781ND
2021-02-16376782ND
2021-02-16376783ND
2021-02-16376784ND
2021-05-103803211.62 ppb
2021-05-10380322ND
2021-05-103803232.46 ppb
2021-05-103803241.51 ppb
2021-05-103803251.32 ppb
2021-05-103803261.52 ppb
2021-05-103803271.51 ppb
2021-05-103803281.53 ppb
2021-08-093843171.06 ppb
2021-08-093843181.13 ppb
2021-08-09384319ND
2021-08-093843211.08 ppb
2021-08-093843201.12 ppb
2021-08-093843221.01 ppb
2021-08-093843231.09 ppb
2021-08-09384324ND
2021-11-083885411.58 ppb
2021-11-083885422.22 ppb
2021-11-083885431.40 ppb
2021-11-083885441.13 ppb
2021-11-083885451.59 ppb
2021-11-083885461.21 ppb
2021-11-08388547ND
2021-11-08388548ND
2021-12-06389195ND
2022-02-08392026ND
2022-02-08392027ND
2022-02-08392025ND
2022-02-08392024ND
2022-02-08392020ND
2022-02-08392022ND
2022-02-08392023ND
2022-02-08392021ND
2022-05-093953271.16 ppb
2022-05-093953281.30 ppb
2022-05-093953291.71 ppb
2022-05-093953301.81 ppb
2022-05-093953311.94 ppb
2022-05-093953321.32 ppb
2022-05-09395333ND
2022-05-09395334ND
2022-08-09399556ND
2022-08-093995571.20 ppb
2022-08-093995581.29 ppb
2022-08-093995591.49 ppb
2022-08-093995601.94 ppb
2022-08-093995611.01 ppb
2022-08-093998111.20 ppb
2022-08-09399812ND
2022-11-08403924ND
2022-11-08403925ND
2022-11-084039261.03 ppb
2022-11-08403927ND
2022-11-08403928ND
2022-11-08403929ND
2022-11-084039301.02 ppb
2022-11-08403931ND
2023-02-06407550ND
2023-02-06407553ND
2023-02-06407552ND
2023-02-06407551ND
2023-02-06407557ND
2023-02-064075561.03 ppb
2023-02-06407555ND
2023-02-06407554ND
2023-05-084111301.99 ppb
2023-05-084111282.14 ppb
2023-05-084111291.60 ppb
2023-05-084111381.31 ppb
2023-05-084111391.56 ppb
2023-05-084111402.01 ppb
2023-05-084111412.29 ppb
2023-05-314117471.73 ppb
2023-08-074150251.26 ppb
2023-08-074150261.18 ppb
2023-08-074150271.31 ppb
2023-08-074150281.18 ppb
2023-08-074150291.24 ppb
2023-08-074150301.37 ppb
2023-08-074150311.37 ppb
2023-08-074150321.19 ppb
2023-11-134190651.94 ppb
2023-11-134190671.74 ppb
2023-11-134190711.96 ppb
2023-11-134190721.63 ppb
2023-11-134190691.63 ppb
2023-11-134190681.61 ppb
2023-11-134190701.68 ppb
2023-11-134190661.89 ppb