Dichloroacetic acid
Chester Water Authority
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 20.3 ppb | 32 | 32 | 12.1 ppb - 33.0 ppb |
| 2019 | 17.8 ppb | 96 | 96 | 8.00 ppb - 32.0 ppb |
| 2020 | 18.4 ppb | 96 | 96 | 8.50 ppb - 30.1 ppb |
| 2021 | 19.8 ppb | 96 | 96 | 8.20 ppb - 36.4 ppb |
| 2022 | 17.6 ppb | 96 | 96 | 6.30 ppb - 31.3 ppb |
| 2023 | 19.2 ppb | 96 | 96 | 10.5 ppb - 34.8 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 |
|---|---|---|
| 2018-09-07 | 2337327003 | 19.3 ppb |
| 2018-09-07 | 2337327002 | 31.6 ppb |
| 2018-09-07 | 2337327001 | 25.8 ppb |
| 2018-09-07 | 2337327005 | 28.7 ppb |
| 2018-09-07 | 2337327006 | 32.4 ppb |
| 2018-09-07 | 2337327008 | 33.0 ppb |
| 2018-09-07 | 2337327007 | 33.0 ppb |
| 2018-09-07 | 2337327004 | 30.2 ppb |
| 2018-10-10 | 2343959003 | 12.7 ppb |
| 2018-10-10 | 2343959002 | 20.7 ppb |
| 2018-10-10 | 2343959001 | 19.2 ppb |
| 2018-10-10 | 2343959005 | 16.2 ppb |
| 2018-10-10 | 2343959006 | 20.5 ppb |
| 2018-10-10 | 2343959008 | 21.6 ppb |
| 2018-10-10 | 2343959007 | 21.5 ppb |
| 2018-10-10 | 2343959004 | 18.6 ppb |
| 2018-11-07 | 2349357003 | 19.7 ppb |
| 2018-11-07 | 2349357002 | 21.6 ppb |
| 2018-11-07 | 2349357001 | 19.8 ppb |
| 2018-11-07 | 2349357006 | 20.8 ppb |
| 2018-11-07 | 2349357008 | 22.9 ppb |
| 2018-11-07 | 2349357007 | 20.0 ppb |
| 2018-11-07 | 2349357004 | 17.3 ppb |
| 2018-11-08 | 2349357005 | 16.1 ppb |
| 2018-12-11 | 3005508003 | 12.4 ppb |
| 2018-12-11 | 3005508002 | 14.1 ppb |
| 2018-12-11 | 3005508001 | 13.7 ppb |
| 2018-12-11 | 3005508005 | 13.5 ppb |
| 2018-12-11 | 3005508006 | 12.5 ppb |
| 2018-12-11 | 3005508008 | 12.1 ppb |
| 2018-12-11 | 3005508007 | 13.4 ppb |
| 2018-12-11 | 3005508004 | 13.5 ppb |
| 2019-01-08 | 3009895003 | 14.0 ppb |
| 2019-01-08 | 3009895002 | 11.8 ppb |
| 2019-01-08 | 3009895001 | 12.4 ppb |
| 2019-01-08 | 3009895005 | 13.5 ppb |
| 2019-01-08 | 3009895006 | 12.0 ppb |
| 2019-01-08 | 3009895008 | 13.3 ppb |
| 2019-01-08 | 3009895007 | 13.6 ppb |
| 2019-01-08 | 3009895004 | 11.9 ppb |
| 2019-02-12 | 3016801003 | 15.5 ppb |
| 2019-02-12 | 3016801002 | 9.70 ppb |
| 2019-02-12 | 3016801001 | 10.00 ppb |
| 2019-02-12 | 3016801005 | 10.7 ppb |
| 2019-02-12 | 3016801006 | 9.10 ppb |
| 2019-02-12 | 3016801008 | 9.40 ppb |
| 2019-02-12 | 3016801007 | 9.50 ppb |
| 2019-02-12 | 3016801004 | 10.00 ppb |
| 2019-03-07 | 3020744003 | 11.0 ppb |
| 2019-03-07 | 3020744002 | 8.80 ppb |
| 2019-03-07 | 3020744001 | 9.80 ppb |
| 2019-03-07 | 3020744005 | 9.40 ppb |
| 2019-03-07 | 3020744006 | 9.00 ppb |
| 2019-03-07 | 3020744008 | 9.60 ppb |
| 2019-03-07 | 3020744007 | 8.00 ppb |
| 2019-03-07 | 3020744004 | 9.90 ppb |
| 2019-04-10 | 3027870003 | 9.70 ppb |
| 2019-04-10 | 3027870002 | 9.90 ppb |
| 2019-04-10 | 3027870001 | 10.2 ppb |
| 2019-04-10 | 3027870005 | 10.6 ppb |
| 2019-04-10 | 3027870006 | 10.3 ppb |
| 2019-04-10 | 3027870008 | 11.3 ppb |
| 2019-04-10 | 3027870007 | 11.2 ppb |
| 2019-04-10 | 3027870004 | 10.8 ppb |
| 2019-05-16 | 3034622003 | 22.2 ppb |
| 2019-05-16 | 3034622002 | 26.3 ppb |
| 2019-05-16 | 3034622001 | 23.5 ppb |
| 2019-05-16 | 3034622005 | 23.3 ppb |
| 2019-05-16 | 3034622006 | 26.9 ppb |
| 2019-05-16 | 3034622008 | 24.0 ppb |
| 2019-05-16 | 3034622007 | 25.1 ppb |
| 2019-05-16 | 3034622004 | 25.0 ppb |
| 2019-06-07 | 3038500003 | 16.1 ppb |
| 2019-06-07 | 3038500002 | 14.1 ppb |
| 2019-06-07 | 3038500001 | 15.0 ppb |
| 2019-06-07 | 3038500005 | 17.8 ppb |
| 2019-06-07 | 3038500006 | 15.3 ppb |
| 2019-06-07 | 3038500008 | 14.1 ppb |
| 2019-06-07 | 3038500007 | 13.7 ppb |
| 2019-06-07 | 3038500004 | 15.9 ppb |
| 2019-07-09 | 3044794003 | 29.9 ppb |
| 2019-07-09 | 3044794002 | 27.1 ppb |
| 2019-07-09 | 3044794001 | 25.2 ppb |
| 2019-07-09 | 3044794005 | 28.6 ppb |
| 2019-07-09 | 3044794006 | 27.6 ppb |
| 2019-07-09 | 3044794008 | 24.9 ppb |
| 2019-07-09 | 3044794007 | 27.4 ppb |
| 2019-07-09 | 3044794004 | 26.7 ppb |
| 2019-08-07 | 3050926003 | 27.3 ppb |
| 2019-08-07 | 3050926002 | 26.6 ppb |
| 2019-08-07 | 3050926001 | 26.8 ppb |
| 2019-08-07 | 3050926005 | 26.8 ppb |
| 2019-08-07 | 3050926007 | 22.8 ppb |
| 2019-08-07 | 3050926006 | 31.8 ppb |
| 2019-08-07 | 3050926004 | 25.7 ppb |
| 2019-08-12 | 3051528001 | 30.4 ppb |
| 2019-09-11 | 3057607003 | 18.9 ppb |
| 2019-09-11 | 3057607002 | 19.8 ppb |
| 2019-09-11 | 3057607001 | 20.6 ppb |
| 2019-09-11 | 3057607005 | 20.6 ppb |
| 2019-09-11 | 3057607006 | 19.9 ppb |
| 2019-09-11 | 3057607008 | 17.4 ppb |
| 2019-09-11 | 3057607007 | 20.0 ppb |
| 2019-09-11 | 3057607004 | 18.9 ppb |
| 2019-10-08 | 3063042003 | 16.7 ppb |
| 2019-10-08 | 3063042002 | 15.9 ppb |
| 2019-10-08 | 3063042001 | 16.1 ppb |
| 2019-10-08 | 3063042005 | 14.9 ppb |
| 2019-10-08 | 3063042006 | 15.5 ppb |
| 2019-10-08 | 3063042008 | 16.4 ppb |
| 2019-10-08 | 3063042007 | 16.2 ppb |
| 2019-10-08 | 3063042004 | 16.5 ppb |
| 2019-11-07 | 3068994003 | 30.6 ppb |
| 2019-11-07 | 3068994002 | 32.0 ppb |
| 2019-11-07 | 3068994001 | 25.8 ppb |
| 2019-11-07 | 3068994005 | 25.1 ppb |
| 2019-11-07 | 3068994006 | 31.7 ppb |
| 2019-11-07 | 3068994008 | 29.5 ppb |
| 2019-11-07 | 3068994007 | 31.1 ppb |
| 2019-11-07 | 3068994004 | 26.9 ppb |
| 2019-12-10 | 3075060003 | 10.5 ppb |
| 2019-12-10 | 3075060002 | 10.4 ppb |
| 2019-12-10 | 3075060001 | 10.6 ppb |
| 2019-12-10 | 3075060005 | 12.2 ppb |
| 2019-12-10 | 3075060007 | 11.2 ppb |
| 2019-12-10 | 3075060006 | 12.5 ppb |
| 2019-12-10 | 3075060004 | 11.2 ppb |
| 2019-12-11 | 3075164001 | 12.2 ppb |
| 2020-01-08 | 23.2 ppb | |
| 2020-01-08 | 16.7 ppb | |
| 2020-01-08 | 14.8 ppb | |
| 2020-01-08 | 15.4 ppb | |
| 2020-01-08 | 17.3 ppb | |
| 2020-01-08 | 13.6 ppb | |
| 2020-01-08 | 17.3 ppb | |
| 2020-01-08 | 16.5 ppb | |
| 2020-02-11 | 22.1 ppb | |
| 2020-02-11 | 13.4 ppb | |
| 2020-02-11 | 13.4 ppb | |
| 2020-02-11 | 17.3 ppb | |
| 2020-02-11 | 13.8 ppb | |
| 2020-02-11 | 11.1 ppb | |
| 2020-02-11 | 14.4 ppb | |
| 2020-02-11 | 15.6 ppb | |
| 2020-03-10 | 9.90 ppb | |
| 2020-03-10 | 9.50 ppb | |
| 2020-03-10 | 9.00 ppb | |
| 2020-03-10 | 9.60 ppb | |
| 2020-03-10 | 9.80 ppb | |
| 2020-03-10 | 11.3 ppb | |
| 2020-03-10 | 9.60 ppb | |
| 2020-03-10 | 8.50 ppb | |
| 2020-04-07 | 11.6 ppb | |
| 2020-04-07 | 13.6 ppb | |
| 2020-04-07 | 11.7 ppb | |
| 2020-04-07 | 14.2 ppb | |
| 2020-04-07 | 13.8 ppb | |
| 2020-04-07 | 13.4 ppb | |
| 2020-04-07 | 13.9 ppb | |
| 2020-04-07 | 13.8 ppb | |
| 2020-05-08 | 17.8 ppb | |
| 2020-05-08 | 19.6 ppb | |
| 2020-05-08 | 20.5 ppb | |
| 2020-05-08 | 19.8 ppb | |
| 2020-05-08 | 18.7 ppb | |
| 2020-05-08 | 18.7 ppb | |
| 2020-05-08 | 19.1 ppb | |
| 2020-05-08 | 17.9 ppb | |
| 2020-06-10 | 19.4 ppb | |
| 2020-06-10 | 24.4 ppb | |
| 2020-06-10 | 22.0 ppb | |
| 2020-06-10 | 21.0 ppb | |
| 2020-06-10 | 21.5 ppb | |
| 2020-06-10 | 21.6 ppb | |
| 2020-06-10 | 21.5 ppb | |
| 2020-06-10 | 21.6 ppb | |
| 2020-07-08 | 20.7 ppb | |
| 2020-07-08 | 24.6 ppb | |
| 2020-07-08 | 23.6 ppb | |
| 2020-07-08 | 26.6 ppb | |
| 2020-07-08 | 24.8 ppb | |
| 2020-07-08 | 22.5 ppb | |
| 2020-07-08 | 25.0 ppb | |
| 2020-07-08 | 22.7 ppb | |
| 2020-08-07 | 25.6 ppb | |
| 2020-08-07 | 28.4 ppb | |
| 2020-08-07 | 25.4 ppb | |
| 2020-08-07 | 26.9 ppb | |
| 2020-08-07 | 27.7 ppb | |
| 2020-08-07 | 30.1 ppb | |
| 2020-08-07 | 28.2 ppb | |
| 2020-08-07 | 26.0 ppb | |
| 2020-09-10 | 20.2 ppb | |
| 2020-09-10 | 21.6 ppb | |
| 2020-09-10 | 19.9 ppb | |
| 2020-09-10 | 22.9 ppb | |
| 2020-09-10 | 20.5 ppb | |
| 2020-09-10 | 20.9 ppb | |
| 2020-09-10 | 22.9 ppb | |
| 2020-09-10 | 25.5 ppb | |
| 2020-10-08 | 18.9 ppb | |
| 2020-10-08 | 19.1 ppb | |
| 2020-10-08 | 20.2 ppb | |
| 2020-10-08 | 16.0 ppb | |
| 2020-10-08 | 17.8 ppb | |
| 2020-10-08 | 19.2 ppb | |
| 2020-10-08 | 18.4 ppb | |
| 2020-10-08 | 19.0 ppb | |
| 2020-11-12 | 20.6 ppb | |
| 2020-11-12 | 21.8 ppb | |
| 2020-11-12 | 17.7 ppb | |
| 2020-11-12 | 11.1 ppb | |
| 2020-11-12 | 18.3 ppb | |
| 2020-11-12 | 20.6 ppb | |
| 2020-11-12 | 19.9 ppb | |
| 2020-11-12 | 12.4 ppb | |
| 2020-12-11 | 18.2 ppb | |
| 2020-12-11 | 15.2 ppb | |
| 2020-12-11 | 16.3 ppb | |
| 2020-12-11 | 16.7 ppb | |
| 2020-12-11 | 14.8 ppb | |
| 2020-12-11 | 14.9 ppb | |
| 2020-12-11 | 15.1 ppb | |
| 2020-12-11 | 15.6 ppb | |
| 2021-01-12 | 17.5 ppb | |
| 2021-01-12 | 13.6 ppb | |
| 2021-01-12 | 14.0 ppb | |
| 2021-01-12 | 17.2 ppb | |
| 2021-01-12 | 12.7 ppb | |
| 2021-01-12 | 13.4 ppb | |
| 2021-01-12 | 15.0 ppb | |
| 2021-01-12 | 14.6 ppb | |
| 2021-02-09 | 9.20 ppb | |
| 2021-02-09 | 8.50 ppb | |
| 2021-02-09 | 8.20 ppb | |
| 2021-02-09 | 8.90 ppb | |
| 2021-02-09 | 8.50 ppb | |
| 2021-02-09 | 8.90 ppb | |
| 2021-02-09 | 8.50 ppb | |
| 2021-02-09 | 8.50 ppb | |
| 2021-03-09 | 13.8 ppb | |
| 2021-03-09 | 17.1 ppb | |
| 2021-03-09 | 16.2 ppb | |
| 2021-03-09 | 15.4 ppb | |
| 2021-03-09 | 15.6 ppb | |
| 2021-03-09 | 14.4 ppb | |
| 2021-03-09 | 16.5 ppb | |
| 2021-03-09 | 14.7 ppb | |
| 2021-04-09 | 28.0 ppb | |
| 2021-04-09 | 19.1 ppb | |
| 2021-04-09 | 20.5 ppb | |
| 2021-04-09 | 19.9 ppb | |
| 2021-04-09 | 19.3 ppb | |
| 2021-04-09 | 17.7 ppb | |
| 2021-04-09 | 21.2 ppb | |
| 2021-04-09 | 19.7 ppb | |
| 2021-05-07 | 12.9 ppb | |
| 2021-05-07 | 12.9 ppb | |
| 2021-05-07 | 14.6 ppb | |
| 2021-05-07 | 13.8 ppb | |
| 2021-05-07 | 13.6 ppb | |
| 2021-05-07 | 13.8 ppb | |
| 2021-05-07 | 13.7 ppb | |
| 2021-05-07 | 13.0 ppb | |
| 2021-06-10 | 26.6 ppb | |
| 2021-06-10 | 18.8 ppb | |
| 2021-06-10 | 18.3 ppb | |
| 2021-06-10 | 20.2 ppb | |
| 2021-06-10 | 13.6 ppb | |
| 2021-06-10 | 10.9 ppb | |
| 2021-06-10 | 19.6 ppb | |
| 2021-06-10 | 19.1 ppb | |
| 2021-07-07 | 26.4 ppb | |
| 2021-07-07 | 26.5 ppb | |
| 2021-07-07 | 23.8 ppb | |
| 2021-07-07 | 26.9 ppb | |
| 2021-07-07 | 25.5 ppb | |
| 2021-07-07 | 22.4 ppb | |
| 2021-07-07 | 26.1 ppb | |
| 2021-07-07 | 25.7 ppb | |
| 2021-08-10 | 29.0 ppb | |
| 2021-08-10 | 27.4 ppb | |
| 2021-08-10 | 27.3 ppb | |
| 2021-08-10 | 30.8 ppb | |
| 2021-08-10 | 25.6 ppb | |
| 2021-08-10 | 21.4 ppb | |
| 2021-08-10 | 31.8 ppb | |
| 2021-08-10 | 29.0 ppb | |
| 2021-09-13 | 29.6 ppb | |
| 2021-09-13 | 34.7 ppb | |
| 2021-09-13 | 29.7 ppb | |
| 2021-09-13 | 36.4 ppb | |
| 2021-09-13 | 31.3 ppb | |
| 2021-09-13 | 22.9 ppb | |
| 2021-09-13 | 33.2 ppb | |
| 2021-09-13 | 30.9 ppb | |
| 2021-10-13 | 24.0 ppb | |
| 2021-10-13 | 23.0 ppb | |
| 2021-10-13 | 22.3 ppb | |
| 2021-10-13 | 25.3 ppb | |
| 2021-10-13 | 24.0 ppb | |
| 2021-10-13 | 21.2 ppb | |
| 2021-10-13 | 25.9 ppb | |
| 2021-10-13 | 26.4 ppb | |
| 2021-11-12 | 23.0 ppb | |
| 2021-11-12 | 22.5 ppb | |
| 2021-11-12 | 22.4 ppb | |
| 2021-11-12 | 16.4 ppb | |
| 2021-11-12 | 22.7 ppb | |
| 2021-11-12 | 23.2 ppb | |
| 2021-11-12 | 26.7 ppb | |
| 2021-11-12 | 24.1 ppb | |
| 2021-12-10 | 17.0 ppb | |
| 2021-12-10 | 14.8 ppb | |
| 2021-12-10 | 17.8 ppb | |
| 2021-12-10 | 15.9 ppb | |
| 2021-12-10 | 12.9 ppb | |
| 2021-12-10 | 14.2 ppb | |
| 2021-12-10 | 15.2 ppb | |
| 2021-12-10 | 13.1 ppb | |
| 2022-01-12 | 12.5 ppb | |
| 2022-01-12 | 13.2 ppb | |
| 2022-01-12 | 12.4 ppb | |
| 2022-01-12 | 13.7 ppb | |
| 2022-01-12 | 13.8 ppb | |
| 2022-01-12 | 13.7 ppb | |
| 2022-01-12 | 13.5 ppb | |
| 2022-01-12 | 12.1 ppb | |
| 2022-02-08 | 26.3 ppb | |
| 2022-02-08 | 29.0 ppb | |
| 2022-02-08 | 27.2 ppb | |
| 2022-02-08 | 26.4 ppb | |
| 2022-02-08 | 27.9 ppb | |
| 2022-02-08 | 31.3 ppb | |
| 2022-02-08 | 27.5 ppb | |
| 2022-02-08 | 27.2 ppb | |
| 2022-03-07 | 19.9 ppb | |
| 2022-03-07 | 15.8 ppb | |
| 2022-03-07 | 17.1 ppb | |
| 2022-03-07 | 19.2 ppb | |
| 2022-03-07 | 15.3 ppb | |
| 2022-03-07 | 17.9 ppb | |
| 2022-03-07 | 18.6 ppb | |
| 2022-03-07 | 19.4 ppb | |
| 2022-04-07 | 13.6 ppb | |
| 2022-04-07 | 14.2 ppb | |
| 2022-04-07 | 12.9 ppb | |
| 2022-04-07 | 12.7 ppb | |
| 2022-04-07 | 15.1 ppb | |
| 2022-04-07 | 13.2 ppb | |
| 2022-04-07 | 15.4 ppb | |
| 2022-04-07 | 14.5 ppb | |
| 2022-05-09 | 17.7 ppb | |
| 2022-05-09 | 14.6 ppb | |
| 2022-05-09 | 14.0 ppb | |
| 2022-05-09 | 15.1 ppb | |
| 2022-05-09 | 14.3 ppb | |
| 2022-05-09 | 13.4 ppb | |
| 2022-05-09 | 15.0 ppb | |
| 2022-05-09 | 15.5 ppb | |
| 2022-06-07 | 24.8 ppb | |
| 2022-06-07 | 24.3 ppb | |
| 2022-06-07 | 22.9 ppb | |
| 2022-06-07 | 23.3 ppb | |
| 2022-06-07 | 24.2 ppb | |
| 2022-06-07 | 21.3 ppb | |
| 2022-06-07 | 22.5 ppb | |
| 2022-06-07 | 25.5 ppb | |
| 2022-07-07 | 21.8 ppb | |
| 2022-07-07 | 19.4 ppb | |
| 2022-07-07 | 18.5 ppb | |
| 2022-07-07 | 21.0 ppb | |
| 2022-07-07 | 22.3 ppb | |
| 2022-07-07 | 21.2 ppb | |
| 2022-07-07 | 19.3 ppb | |
| 2022-07-07 | 19.7 ppb | |
| 2022-08-09 | 17.9 ppb | |
| 2022-08-09 | 17.3 ppb | |
| 2022-08-09 | 18.3 ppb | |
| 2022-08-09 | 18.8 ppb | |
| 2022-08-09 | 18.2 ppb | |
| 2022-08-09 | 18.5 ppb | |
| 2022-08-09 | 18.7 ppb | |
| 2022-08-09 | 16.2 ppb | |
| 2022-09-08 | 15.5 ppb | |
| 2022-09-08 | 14.7 ppb | |
| 2022-09-08 | 14.4 ppb | |
| 2022-09-08 | 12.2 ppb | |
| 2022-09-08 | 14.5 ppb | |
| 2022-09-08 | 9.00 ppb | |
| 2022-09-08 | 15.5 ppb | |
| 2022-09-08 | 13.3 ppb | |
| 2022-10-11 | 13.1 ppb | |
| 2022-10-11 | 17.6 ppb | |
| 2022-10-11 | 15.9 ppb | |
| 2022-10-11 | 6.30 ppb | |
| 2022-10-11 | 16.3 ppb | |
| 2022-10-11 | 18.2 ppb | |
| 2022-10-11 | 17.2 ppb | |
| 2022-10-11 | 15.9 ppb | |
| 2022-11-08 | 16.0 ppb | |
| 2022-11-08 | 18.3 ppb | |
| 2022-11-08 | 15.2 ppb | |
| 2022-11-08 | 15.7 ppb | |
| 2022-11-08 | 19.2 ppb | |
| 2022-11-08 | 17.2 ppb | |
| 2022-11-08 | 18.7 ppb | |
| 2022-11-08 | 17.8 ppb | |
| 2022-12-08 | 9.70 ppb | |
| 2022-12-08 | 17.2 ppb | |
| 2022-12-08 | 15.3 ppb | |
| 2022-12-08 | 13.7 ppb | |
| 2022-12-08 | 20.2 ppb | |
| 2022-12-08 | 17.4 ppb | |
| 2022-12-08 | 18.0 ppb | |
| 2022-12-08 | 17.0 ppb | |
| 2023-01-10 | 11.8 ppb | |
| 2023-01-10 | 17.9 ppb | |
| 2023-01-10 | 17.3 ppb | |
| 2023-01-10 | 18.8 ppb | |
| 2023-01-10 | 18.7 ppb | |
| 2023-01-10 | 18.2 ppb | |
| 2023-01-10 | 21.3 ppb | |
| 2023-01-10 | 20.7 ppb | |
| 2023-02-07 | 18.3 ppb | |
| 2023-02-07 | 18.4 ppb | |
| 2023-02-07 | 17.9 ppb | |
| 2023-02-07 | 19.5 ppb | |
| 2023-02-07 | 18.3 ppb | |
| 2023-02-07 | 19.2 ppb | |
| 2023-02-07 | 18.3 ppb | |
| 2023-02-07 | 18.1 ppb | |
| 2023-03-07 | 11.4 ppb | |
| 2023-03-07 | 11.1 ppb | |
| 2023-03-07 | 10.5 ppb | |
| 2023-03-07 | 11.7 ppb | |
| 2023-03-07 | 13.7 ppb | |
| 2023-03-07 | 14.3 ppb | |
| 2023-03-07 | 12.0 ppb | |
| 2023-03-07 | 12.1 ppb | |
| 2023-04-11 | 15.2 ppb | |
| 2023-04-11 | 16.5 ppb | |
| 2023-04-11 | 14.1 ppb | |
| 2023-04-11 | 15.2 ppb | |
| 2023-04-11 | 17.0 ppb | |
| 2023-04-11 | 16.6 ppb | |
| 2023-04-11 | 16.5 ppb | |
| 2023-04-11 | 15.0 ppb | |
| 2023-05-07 | 32.8 ppb | |
| 2023-05-07 | 34.8 ppb | |
| 2023-05-07 | 20.8 ppb | |
| 2023-05-07 | 32.7 ppb | |
| 2023-05-07 | 30.2 ppb | |
| 2023-05-07 | 29.0 ppb | |
| 2023-05-08 | 30.0 ppb | |
| 2023-05-08 | 32.1 ppb | |
| 2023-06-12 | 19.9 ppb | |
| 2023-06-12 | 17.7 ppb | |
| 2023-06-12 | 15.2 ppb | |
| 2023-06-12 | 18.4 ppb | |
| 2023-06-12 | 19.4 ppb | |
| 2023-06-12 | 17.8 ppb | |
| 2023-06-12 | 18.5 ppb | |
| 2023-06-12 | 15.7 ppb | |
| 2023-07-10 | 26.3 ppb | |
| 2023-07-10 | 21.0 ppb | |
| 2023-07-10 | 19.9 ppb | |
| 2023-07-10 | 23.3 ppb | |
| 2023-07-10 | 21.1 ppb | |
| 2023-07-10 | 17.5 ppb | |
| 2023-07-10 | 23.4 ppb | |
| 2023-07-10 | 23.5 ppb | |
| 2023-08-08 | 18.4 ppb | |
| 2023-08-08 | 21.3 ppb | |
| 2023-08-08 | 21.4 ppb | |
| 2023-08-08 | 19.5 ppb | |
| 2023-08-08 | 18.5 ppb | |
| 2023-08-08 | 18.1 ppb | |
| 2023-08-08 | 19.8 ppb | |
| 2023-08-08 | 17.3 ppb | |
| 2023-09-11 | 21.2 ppb | |
| 2023-09-11 | 21.5 ppb | |
| 2023-09-11 | 20.0 ppb | |
| 2023-09-11 | 19.1 ppb | |
| 2023-09-11 | 19.7 ppb | |
| 2023-09-11 | 17.7 ppb | |
| 2023-09-11 | 21.4 ppb | |
| 2023-09-11 | 17.9 ppb | |
| 2023-10-10 | 28.1 ppb | |
| 2023-10-10 | 21.1 ppb | |
| 2023-10-10 | 25.8 ppb | |
| 2023-10-10 | 18.7 ppb | |
| 2023-10-10 | 26.3 ppb | |
| 2023-10-10 | 22.9 ppb | |
| 2023-10-10 | 23.2 ppb | |
| 2023-10-10 | 22.7 ppb | |
| 2023-11-07 | 16.7 ppb | |
| 2023-11-07 | 17.4 ppb | |
| 2023-11-07 | 14.9 ppb | |
| 2023-11-07 | 16.8 ppb | |
| 2023-11-07 | 15.7 ppb | |
| 2023-11-07 | 17.2 ppb | |
| 2023-11-07 | 17.3 ppb | |
| 2023-11-07 | 15.8 ppb | |
| 2023-12-07 | 17.7 ppb | |
| 2023-12-07 | 16.6 ppb | |
| 2023-12-07 | 16.5 ppb | |
| 2023-12-07 | 16.7 ppb | |
| 2023-12-07 | 19.0 ppb | |
| 2023-12-07 | 16.8 ppb | |
| 2023-12-07 | 16.4 ppb | |
| 2023-12-07 | 16.4 ppb |