Know Your Environment. Protect Your Health.

Dichloroacetic acid

Metropolitan District Commission

Dichloroacetic 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)

283

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20189.70 ppb48482.05 ppb - 20.4 ppb
20198.93 ppb4847ND - 26.8 ppb
20206.55 ppb48480.513 ppb - 16.9 ppb
20217.22 ppb4846ND - 19.2 ppb
20228.23 ppb48480.550 ppb - 21.6 ppb
20237.41 ppb4846ND - 20.6 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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
2018-03-05AD89780GE8.50 ppb
2018-03-05AD89784GE16.0 ppb
2018-03-06AD89779GE13.0 ppb
2018-03-06AD89785GE12.0 ppb
2018-03-06AD89776GE12.0 ppb
2018-03-06AD89777GE15.0 ppb
2018-03-06AD89781GE16.0 ppb
2018-03-06AD89782GE9.50 ppb
2018-03-06AD89783GE11.0 ppb
2018-03-08AD89786GE10.00 ppb
2018-03-08AD89787GE6.40 ppb
2018-03-09AD89778GE14.0 ppb
2018-06-11DBP 2004977178.70 ppb
2018-06-11DBP 2004977163.70 ppb
2018-06-12DBP 20049771815.8 ppb
2018-06-12DBP 20049771914.9 ppb
2018-06-12DBP 2004977202.60 ppb
2018-06-13DBP 20049772119.9 ppb
2018-06-13DBP 20049772210.7 ppb
2018-06-13DBP 20049772315.2 ppb
2018-06-13DBP 2004977242.60 ppb
2018-06-14DBP 2004977257.70 ppb
2018-06-14DBP 2004977263.80 ppb
2018-06-15DBP 20049772714.3 ppb
2018-09-05AE06391GE2.06 ppb
2018-09-05AE06392GE2.73 ppb
2018-09-05AE06396GE13.5 ppb
2018-09-05AE06397GE10.9 ppb
2018-09-06AE06399GE6.83 ppb
2018-09-06AE06400GE9.21 ppb
2018-09-06AE06401GE11.2 ppb
2018-09-06AE06402GE2.20 ppb
2018-09-06AE06394GE5.35 ppb
2018-09-07AE06395GE3.60 ppb
2018-09-07AE06398GE10.4 ppb
2018-09-07AE06393GE14.7 ppb
2018-12-03AE14329GE4.01 ppb
2018-12-03AE14330GE4.32 ppb
2018-12-03AE14334GE12.9 ppb
2018-12-04AE14335GE13.8 ppb
2018-12-04AE14333GE19.4 ppb
2018-12-05AE14326GE5.01 ppb
2018-12-05AE14327GE6.70 ppb
2018-12-05AE14331GE3.86 ppb
2018-12-05AE14332GE8.23 ppb
2018-12-06AE14336GE8.81 ppb
2018-12-06AE14337GE2.05 ppb
2018-12-07AE14328GE20.4 ppb
2019-03-11AE22328GE17.7 ppb
2019-03-11AE22324GE6.50 ppb
2019-03-12AE22327GE18.2 ppb
2019-03-12AE22329GE22.9 ppb
2019-03-12AE22323GE7.74 ppb
2019-03-13AE22320GE6.82 ppb
2019-03-13AE22321GE24.9 ppb
2019-03-13AE22325GE26.8 ppb
2019-03-13AE22326GE13.8 ppb
2019-03-14AE22330GE7.12 ppb
2019-03-14AE22331GE6.83 ppb
2019-03-15AE22322GE17.6 ppb
2019-06-03AE30192GE3.22 ppb
2019-06-03AE30196GE7.48 ppb
2019-06-04AE30191GE1.47 ppb
2019-06-04AE30195GE17.8 ppb
2019-06-04AE30197GE9.97 ppb
2019-06-05AE30193GE18.6 ppb
2019-06-05AE30194GE8.12 ppb
2019-06-05AE30188GEND
2019-06-05AE30189GE26.3 ppb
2019-06-06AE30198GE9.29 ppb
2019-06-06AE30199GE3.35 ppb
2019-06-07AE30190GE17.4 ppb
2019-09-09DBP 2005488252.00 ppb
2019-09-09DBP 2005488265.10 ppb
2019-09-10DBP 2005488278.80 ppb
2019-09-10DBP 2005488293.80 ppb
2019-09-10DBP 2005488281.80 ppb
2019-09-10DBP 20054883014.5 ppb
2019-09-11DBP 2005488315.90 ppb
2019-09-11DBP 2005488328.40 ppb
2019-09-11DBP 2005488330.800 ppb
2019-09-12DBP 2005488348.70 ppb
2019-09-12DBP 2005488351.10 ppb
2019-09-13DBP 2005488369.40 ppb
2019-12-02DBP 2005592563.80 ppb
2019-12-02DBP 2005592553.30 ppb
2019-12-03DBP 2005592579.00 ppb
2019-12-03DBP 2005592585.40 ppb
2019-12-03DBP 2005592591.50 ppb
2019-12-04DBP 2005592604.20 ppb
2019-12-04DBP 2005592618.00 ppb
2019-12-04DBP 2005592623.50 ppb
2019-12-04DBP 2005592632.50 ppb
2019-12-05DBP 2005592646.30 ppb
2019-12-05DBP 2005592651.80 ppb
2019-12-06DBP 2005592669.30 ppb
2020-03-02AE52330GE3.47 ppb
2020-03-02AE52331GE6.78 ppb
2020-03-02AE52332GE16.9 ppb
2020-03-02AE52333GE12.5 ppb
2020-03-02AE52334GE9.99 ppb
2020-03-02AE52335GE9.88 ppb
2020-03-02AE52336GE12.9 ppb
2020-03-03AE53110GE4.84 ppb
2020-03-03AE53111GE14.6 ppb
2020-03-03AE53112GE9.39 ppb
2020-03-03AE53113GE5.86 ppb
2020-03-03AE53114GE5.13 ppb
2020-06-01AE60029GE2.08 ppb
2020-06-01AE60030GE9.77 ppb
2020-06-01AE60033GE2.42 ppb
2020-06-01AE60034GE11.0 ppb
2020-06-01AE60035GE0.513 ppb
2020-06-01AE60037GE6.63 ppb
2020-06-01AE60038GE11.2 ppb
2020-06-02AE60039GE6.23 ppb
2020-06-02AE60040GE2.70 ppb
2020-06-02AE60036GE10.3 ppb
2020-06-02AE60031GE12.2 ppb
2020-06-02AE60032GE2.84 ppb
2020-09-08AE67031GE1.40 ppb
2020-09-08AE67032GE3.00 ppb
2020-09-08AE67035GE8.10 ppb
2020-09-08AE67036GE6.00 ppb
2020-09-08AE67037GE7.00 ppb
2020-09-08AE67038GE9.10 ppb
2020-09-09AE67033GE7.90 ppb
2020-09-09AE67034GE9.60 ppb
2020-09-09AE67028GE0.800 ppb
2020-09-09AE67029GE2.20 ppb
2020-09-10AE67030GE9.40 ppb
2020-09-10AE67039GE1.50 ppb
2020-12-01AE73075GE8.20 ppb
2020-12-01AE73076GE4.60 ppb
2020-12-01AE73077GE9.40 ppb
2020-12-01AE73078GE1.10 ppb
2020-12-01AE73081GE5.30 ppb
2020-12-01AE73082GE11.2 ppb
2020-12-01AE73083GE4.00 ppb
2020-12-01AE73084GE3.40 ppb
2020-12-01AE73085GE1.60 ppb
2020-12-01AE73086GE4.80 ppb
2020-12-01AE73087GE1.40 ppb
2020-12-01AE73088GE3.20 ppb
2021-03-01AE79601GE9.60 ppb
2021-03-01AE79604GE6.70 ppb
2021-03-02AE79687GE11.2 ppb
2021-03-02AE79692GE4.90 ppb
2021-03-02AE79694GE11.8 ppb
2021-03-03AE79775GE15.7 ppb
2021-03-03AE79776GE3.10 ppb
2021-03-03AE79779GE15.8 ppb
2021-03-03AE79780GE3.40 ppb
2021-03-03AE79821GE1.11 ppb
2021-03-03AE79822GE6.90 ppb
2021-03-04AE79871GE6.60 ppb
2021-06-01AE86386GE14.7 ppb
2021-06-01AE86387GE18.4 ppb
2021-06-01AE86388GE2.47 ppb
2021-06-01AE86389GE15.7 ppb
2021-06-01AE86390GE1.27 ppb
2021-06-01AE86392GE5.22 ppb
2021-06-01AE86393GE8.15 ppb
2021-06-02AE86482GE2.98 ppb
2021-06-02AE86484GE13.7 ppb
2021-06-02AE86485GE2.30 ppb
2021-06-02AE86487GE13.1 ppb
2021-06-02AE86489GE5.27 ppb
2021-09-07AE94495GEND
2021-09-07AE94496GE1.49 ppb
2021-09-07AE94499GE11.5 ppb
2021-09-07AE94500GE2.68 ppb
2021-09-07AE94501GE3.36 ppb
2021-09-07AE94502GE8.29 ppb
2021-09-08AE94497GE5.75 ppb
2021-09-08AE94498GE3.69 ppb
2021-09-08AE94503GE1.12 ppb
2021-09-08AE94492GEND
2021-09-08AE94493GE9.06 ppb
2021-09-08AE94494GE9.08 ppb
2021-12-07AF01258GE1.61 ppb
2021-12-07AF01259GE4.59 ppb
2021-12-07AF01262GE19.2 ppb
2021-12-07AF01264GE10.2 ppb
2021-12-08AF01260GE2.90 ppb
2021-12-08AF01255GE2.95 ppb
2021-12-08AF01261GE8.89 ppb
2021-12-09AF01263GE4.92 ppb
2021-12-09AF01265GE7.98 ppb
2021-12-09AF01266GE1.63 ppb
2021-12-10AF01256GE6.51 ppb
2021-12-10AF01257GE19.0 ppb
2022-03-07AF07835GE10.8 ppb
2022-03-07AF07839GE4.31 ppb
2022-03-08AF07840GE19.9 ppb
2022-03-08AF07838GE16.3 ppb
2022-03-08AF07834GE6.68 ppb
2022-03-09AF07836GE18.5 ppb
2022-03-09AF07837GE8.88 ppb
2022-03-09AF07831GE5.38 ppb
2022-03-10AF07841GE5.80 ppb
2022-03-10AF07842GE6.61 ppb
2022-03-11AF07832GE21.3 ppb
2022-03-11AF07833GE16.3 ppb
2022-06-06AF13657GE15.2 ppb
2022-06-06AF13658GE5.81 ppb
2022-06-06AF13659GE2.08 ppb
2022-06-06AF13660GE1.18 ppb
2022-06-06AF13661GE10.6 ppb
2022-06-06AF13662GE9.16 ppb
2022-06-06AF13663GE21.6 ppb
2022-06-06AF13664GE17.9 ppb
2022-06-06AF13665GE0.550 ppb
2022-06-06AF13666GE16.7 ppb
2022-06-06AF13667GE11.1 ppb
2022-06-06AF13668GE1.40 ppb
2022-09-06AF20649GE14.3 ppb
2022-09-06AF20650GE3.22 ppb
2022-09-06AF20651GE4.21 ppb
2022-09-06AF20652GE9.46 ppb
2022-09-06AF20645GE3.96 ppb
2022-09-06AF20646GE3.24 ppb
2022-09-07AF20647GE9.20 ppb
2022-09-07AF20648GE4.36 ppb
2022-09-07AF20642GE1.96 ppb
2022-09-07AF20643GE2.66 ppb
2022-09-08AF20644GE8.72 ppb
2022-09-08AF20653GE3.00 ppb
2022-12-05AF27777GE4.42 ppb
2022-12-05AF27781GE3.86 ppb
2022-12-06AF27776GE4.05 ppb
2022-12-06AF27780GE10.7 ppb
2022-12-06AF27782GE5.68 ppb
2022-12-07AF27778GE9.86 ppb
2022-12-07AF27779GE4.71 ppb
2022-12-07AF27773GE3.10 ppb
2022-12-08AF27783GE7.25 ppb
2022-12-08AF27784GE3.50 ppb
2022-12-09AF27774GE5.93 ppb
2022-12-09AF27775GE9.71 ppb
2023-03-06AF33278GE12.7 ppb
2023-03-06AF33279GE17.8 ppb
2023-03-06AF33280GE12.5 ppb
2023-03-06AF33281GE6.22 ppb
2023-03-06AF33282GE2.04 ppb
2023-03-06AF33283GE5.18 ppb
2023-03-07AF33357GE8.03 ppb
2023-03-07AF33358GE4.95 ppb
2023-03-07AF33360GE13.6 ppb
2023-03-07AF33361GE3.14 ppb
2023-03-07AF33362GE13.3 ppb
2023-03-07AF33363GE9.92 ppb
2023-06-05AF39761GE15.4 ppb
2023-06-05AF39762GE2.65 ppb
2023-06-05AF39763GE1.22 ppb
2023-06-05AF39764GE9.03 ppb
2023-06-06AF39874GE20.6 ppb
2023-06-06AF39875GE2.35 ppb
2023-06-06AF39876GE14.7 ppb
2023-06-06AF39877GE10.3 ppb
2023-06-07AF40081GEND
2023-06-07AF40082GE15.2 ppb
2023-06-07AF40083GE7.68 ppb
2023-06-07AF40084GE1.32 ppb
2023-09-11AF47036GE6.82 ppb
2023-09-11AF47037GE10.2 ppb
2023-09-11AF47038GE2.37 ppb
2023-09-11AF47039GE2.42 ppb
2023-09-12AF47143GE2.88 ppb
2023-09-12AF47144GE12.5 ppb
2023-09-12AF47145GE4.90 ppb
2023-09-12AF47146GE9.09 ppb
2023-09-12AF47147GE0.860 ppb
2023-09-13AF47230GE3.40 ppb
2023-09-13AF47231GE11.6 ppb
2023-09-13AF47232GE4.77 ppb
2023-12-04AF53197GE3.14 ppb
2023-12-04AF53198GE2.42 ppb
2023-12-04AF53199GE6.50 ppb
2023-12-04AF53200GE0.670 ppb
2023-12-05AF53315GE15.2 ppb
2023-12-05AF53316GE1.52 ppb
2023-12-05AF53317GE17.3 ppb
2023-12-05AF53318GE6.47 ppb
2023-12-06AF53376GEND
2023-12-06AF53377GE4.76 ppb
2023-12-06AF53378GE11.8 ppb
2023-12-06AF53379GE4.02 ppb