Know Your Environment. Protect Your Health.

Monochloroacetic acid

Panoche Water District

Monochloroacetic 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.

 

112

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.44 ppb74ND - 3.10 ppb
20191.48 ppb2614ND - 4.30 ppb
20201.41 ppb3518ND - 4.70 ppb
20211.63 ppb2212ND - 3.70 ppb
20222.65 ppb109ND - 4.10 ppb
20231.73 ppb128ND - 3.00 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic 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.a public health goal. This health guideline protects against change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-26CA1000345_DST_901-201803261300ND
2018-04-19CA1000345_DST_901-20180419NULND
2018-05-24CA1000345_DST_901-2018052411152.30 ppb
2018-09-27CA1000345_DST_901-2018092708502.70 ppb
2018-12-28CA1000345_DST_901-2018122806303.10 ppb
2018-12-28CA1000345_DST_902-201812280615ND
2018-12-28CA1000345_DST_903-2018122806102.00 ppb
2019-02-12CA1000345_DST_903-2019021213002.50 ppb
2019-02-12CA1000345_DST_901-2019021213303.40 ppb
2019-03-25CA1000345_DST_902-201903250900ND
2019-04-03CA1000345_DST_903-2019040313303.60 ppb
2019-04-03CA1000345_DST_901-2019040313103.70 ppb
2019-04-03CA1000345_DST_902-2019040313004.30 ppb
2019-05-20CA1000345_DST_901-2019052009002.10 ppb
2019-05-20CA1000345_DST_902-201905200820ND
2019-06-13CA1000345_DST_901-201906131230ND
2019-06-13CA1000345_DST_902-201906131200ND
2019-07-16CA1000345_DST_903-2019071610452.10 ppb
2019-07-16CA1000345_DST_902-201907161030ND
2019-08-28CA1000345_DST_902-201908281025ND
2019-08-28CA1000345_DST_903-201908281000ND
2019-08-28CA1000345_DST_901-2019082810152.20 ppb
2019-09-26CA1000345_DST_901-2019092610002.50 ppb
2019-09-26CA1000345_DST_902-2019092610152.20 ppb
2019-09-26CA1000345_DST_903-2019092609452.30 ppb
2019-10-22CA1000345_DST_901-201910220910ND
2019-10-22CA1000345_DST_903-201910220730ND
2019-10-22CA1000345_DST_902-201910220740ND
2019-11-25CA1000345_DST_901-2019112508252.00 ppb
2019-11-25CA1000345_DST_903-201911250810ND
2019-11-25CA1000345_DST_902-201911250800ND
2019-12-19CA1000345_DST_902-2019121907452.60 ppb
2019-12-19CA1000345_DST_901-2019121908553.00 ppb
2020-01-21CA1000345_DST_901-2020012109303.20 ppb
2020-01-21CA1000345_DST_902-2020012109152.90 ppb
2020-01-21CA1000345_DST_903-2020012109052.80 ppb
2020-02-19CA1000345_DST_901-2020021908002.30 ppb
2020-02-19CA1000345_DST_902-202002190750ND
2020-02-19CA1000345_DST_903-2020021908102.00 ppb
2020-03-23CA1000345_DST_903-202003230820ND
2020-03-23CA1000345_DST_901-202003230840ND
2020-03-23CA1000345_DST_902-202003230815ND
2020-04-27CA1000345_DST_902-202004271145ND
2020-04-27CA1000345_DST_903-2020042711502.00 ppb
2020-04-27CA1000345_DST_901-2020042713152.90 ppb
2020-05-19CA1000345_DST_902-202005191100ND
2020-05-19CA1000345_DST_901-2020051913152.50 ppb
2020-05-19CA1000345_DST_903-202005191030ND
2020-06-29CA1000345_DST_903-2020062910102.00 ppb
2020-06-29CA1000345_DST_901-2020062910402.70 ppb
2020-06-29CA1000345_DST_902-202006291000ND
2020-07-20CA1000345_DST_901-2020072007503.80 ppb
2020-07-20CA1000345_DST_902-2020072007152.90 ppb
2020-07-20CA1000345_DST_903-2020072007053.20 ppb
2020-08-18CA1000345_DST_903-2020081807252.50 ppb
2020-08-18CA1000345_DST_902-2020081807152.30 ppb
2020-08-18CA1000345_DST_901-2020081808154.70 ppb
2020-09-28CA1000345_DST_901-202009281245ND
2020-09-28CA1000345_DST_902-202009281240ND
2020-09-28CA1000345_DST_903-202009281230ND
2020-10-21CA1000345_DST_901-2020102113002.30 ppb
2020-10-21CA1000345_DST_903-202010211240ND
2020-10-21CA1000345_DST_902-202010211245ND
2020-11-23CA1000345_DST_902-202011231115ND
2020-11-23CA1000345_DST_903-2020112311102.30 ppb
2020-12-29CA1000345_DST_901-202012291350ND
2020-12-29CA1000345_DST_902-202012291410ND
2020-12-29CA1000345_DST_903-202012291400ND
2021-01-12CA1000345_DST_902-202101121345ND
2021-01-12CA1000345_DST_901-202101121400ND
2021-01-12CA1000345_DST_903-202101121330ND
2021-02-24CA1000345_DST_903-2021022412303.30 ppb
2021-02-24CA1000345_DST_901-2021022413003.60 ppb
2021-02-25CA1000345_DST_902-2021022514353.70 ppb
2021-03-16CA1000345_DST_901-2021031608102.60 ppb
2021-03-16CA1000345_DST_903-202103160730ND
2021-03-16CA1000345_DST_902-2021031607353.50 ppb
2021-04-27CA1000345_DST_903-2021042710502.80 ppb
2021-04-27CA1000345_DST_901-2021042711303.30 ppb
2021-04-27CA1000345_DST_902-202104271045ND
2021-05-25CA1000345_DST_902-202105251235ND
2021-05-25CA1000345_DST_901-202105251250ND
2021-05-25CA1000345_DST_903-202105251230ND
2021-06-24CA1000345_DST_902-202106241315ND
2021-07-28CA1000345_DST_901-2021072807452.80 ppb
2021-07-28CA1000345_DST_902-202107280710ND
2021-07-28CA1000345_DST_903-2021072807152.50 ppb
2021-08-30CA1000345_DST_901-2021083008002.60 ppb
2021-10-28CA1000345_DST_901-2021102813302.70 ppb
2021-10-28CA1000345_DST_903-2021102813052.40 ppb
2022-01-19CA1000345_DST_901-2022011914002.80 ppb
2022-01-19CA1000345_DST_903-2022011913003.00 ppb
2022-01-19CA1000345_DST_902-202201191310ND
2022-04-26CA1000345_DST_903-2022042609503.50 ppb
2022-04-26CA1000345_DST_901-2022042610304.10 ppb
2022-07-13CA1000345_DST_903-2022071313102.50 ppb
2022-07-13CA1000345_DST_901-2022071313202.70 ppb
2022-10-12CA1000345_DST_901-2022101206453.10 ppb
2022-10-12CA1000345_DST_902-2022101206352.40 ppb
2022-10-12CA1000345_DST_903-2022101206302.40 ppb
2023-01-12CA1000345_DST_901-2023011211352.30 ppb
2023-01-12CA1000345_DST_902-202301121128ND
2023-01-12CA1000345_DST_903-202301121130ND
2023-04-12CA1000345_DST_902-2023041211052.50 ppb
2023-04-20CA1000345_DST_903-2023042012572.50 ppb
2023-04-20CA1000345_DST_901-2023042013102.90 ppb
2023-07-26CA1000345_DST_902-202307261030ND
2023-07-26CA1000345_DST_903-2023072610353.00 ppb
2023-07-26CA1000345_DST_901-2023072610402.90 ppb
2023-10-04CA1000345_DST_902-202310041050ND
2023-10-04CA1000345_DST_901-2023100410552.60 ppb
2023-10-04CA1000345_DST_903-2023100410452.10 ppb