Chlorate
Western Virginia Water Authority
Chlorate forms in drinking water as a byproduct of disinfection. Chlorate impairs thyroid function, making chlorate exposure most harmful during pregnancy and childhood. Read More.
In 2002, California scientists proposed an advisory value, called an action level, for chlorate at 200 parts per billion. Between 2013 and 2015, the EPA collected data through the Unregulated Contaminant Monitoring Rule program and found that over 15 percent of water tests from 38 percent of utilities had chlorate levels above a health-protective concentration, which federal scientists defined as 210 parts per billion, nearly equivalent to the California advisory value.
470
Samples
0
Samples exceeding legal limit (MCL)
28
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 46.9 ppb | 103 | 67 | ND - 917.0 ppb |
| 2015 | 38.5 ppb | 79 | 65 | ND - 150.0 ppb |
| 2016 | 56.3 ppb | 72 | 69 | ND - 410.0 ppb |
| 2017 | 84.1 ppb | 72 | 60 | ND - 520.0 ppb |
| 2018 | 71.8 ppb | 72 | 67 | ND - 480.0 ppb |
| 2019 | 74.6 ppb | 72 | 69 | ND - 460.0 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 210 ppb
The EWG Health Guideline of 210 ppb for chlorate was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against hormone disruption.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-14 | 2958244 | 34.0 ppb |
| 2014-01-14 | 2958242 | 28.0 ppb |
| 2014-01-15 | 2958243 | 39.0 ppb |
| 2014-01-15 | 2958239 | ND |
| 2014-01-15 | 2958240 | ND |
| 2014-01-15 | 2958241 | ND |
| 2014-02-11 | 201402120870 | 53.0 ppb |
| 2014-02-11 | 201402120872 | 53.0 ppb |
| 2014-02-11 | 201402120871 | 24.0 ppb |
| 2014-02-11 | 201402120874 | 21.0 ppb |
| 2014-02-11 | 201402120873 | 17.0 ppb |
| 2014-02-11 | 201402120875 | ND |
| 2014-03-05 | 2988458 | 51.0 ppb |
| 2014-03-05 | 2988456 | 47.0 ppb |
| 2014-03-05 | 2988460 | 22.0 ppb |
| 2014-03-06 | 2988457 | 51.0 ppb |
| 2014-03-06 | 2988459 | 19.0 ppb |
| 2014-03-06 | 2988461 | ND |
| 2014-04-09 | 14041425-001 | ND |
| 2014-04-14 | 3009482 | 12.0 ppb |
| 2014-04-15 | 3009484 | 27.0 ppb |
| 2014-04-16 | 3009483 | 37.0 ppb |
| 2014-04-16 | 3009485 | 20.0 ppb |
| 2014-04-16 | 3009487 | ND |
| 2014-04-16 | 3009486 | ND |
| 2014-04-18 | 14050506-002 | 102.0 ppb |
| 2014-04-21 | 14050504-001 | 74.7 ppb |
| 2014-04-21 | 14050504-002 | ND |
| 2014-04-22 | 14050506-001 | ND |
| 2014-04-23 | 14050510-002 | 422.0 ppb |
| 2014-04-23 | 14050510-001 | ND |
| 2014-05-05 | 3020962 | ND |
| 2014-05-06 | 3020959 | 37.0 ppb |
| 2014-05-06 | 3020958 | 37.0 ppb |
| 2014-05-06 | 3020961 | 36.0 ppb |
| 2014-05-06 | 3020960 | 28.0 ppb |
| 2014-05-06 | 3020963 | 23.0 ppb |
| 2014-06-02 | 3037668 | 38.0 ppb |
| 2014-06-02 | 3037671 | 35.0 ppb |
| 2014-06-02 | 3037667 | 32.0 ppb |
| 2014-06-03 | 3037669 | 50.0 ppb |
| 2014-06-03 | 3037670 | 27.0 ppb |
| 2014-06-03 | 3037672 | ND |
| 2014-07-07 | 3057884 | 35.0 ppb |
| 2014-07-07 | 3057889 | 34.0 ppb |
| 2014-07-07 | 3057886 | 23.0 ppb |
| 2014-07-07 | 3057885 | 22.0 ppb |
| 2014-07-07 | 3057888 | ND |
| 2014-07-07 | 3057887 | ND |
| 2014-07-15 | 14080392-002 | ND |
| 2014-07-15 | 14080392-001 | ND |
| 2014-07-29 | 14082310-001 | 419.0 ppb |
| 2014-07-29 | 14082310-002 | 273.0 ppb |
| 2014-08-06 | 3076858 | 51.0 ppb |
| 2014-08-06 | 3076857 | 46.0 ppb |
| 2014-08-06 | 3076856 | 37.0 ppb |
| 2014-08-06 | 3076854 | 14.0 ppb |
| 2014-08-06 | 3076853 | ND |
| 2014-08-06 | 3076855 | ND |
| 2014-09-02 | 3096738 | 59.0 ppb |
| 2014-09-02 | 3096739 | 25.0 ppb |
| 2014-09-03 | 3096741 | 49.0 ppb |
| 2014-09-03 | 3096742 | 28.0 ppb |
| 2014-09-03 | 3096743 | 24.0 ppb |
| 2014-09-03 | 3096740 | ND |
| 2014-10-06 | 3117887 | 81.0 ppb |
| 2014-10-06 | 3117884 | 75.0 ppb |
| 2014-10-06 | 3117888 | 75.0 ppb |
| 2014-10-06 | 3117885 | 14.0 ppb |
| 2014-10-06 | 3117886 | ND |
| 2014-10-06 | 3117883 | ND |
| 2014-10-15 | 35159790001AM | ND |
| 2014-10-21 | 35160675003AM | 38.8 ppb |
| 2014-10-21 | 35160675001AM | 231.0 ppb |
| 2014-10-21 | 35160675005AM | ND |
| 2014-10-22 | 35160822001AM | ND |
| 2014-10-22 | 35160822003AM | 49.4 ppb |
| 2014-10-22 | 35160822007AM | ND |
| 2014-10-22 | 35160822005AM | ND |
| 2014-10-24 | 14111449-004 | 67.8 ppb |
| 2014-10-24 | 14111449-006 | 62.4 ppb |
| 2014-10-27 | 14111449-005 | ND |
| 2014-10-27 | 14111449-002 | ND |
| 2014-10-27 | 14111449-003 | ND |
| 2014-10-27 | 14111449-001 | 128.0 ppb |
| 2014-10-29 | 14111976-002 | ND |
| 2014-10-29 | 14111976-001 | 76.6 ppb |
| 2014-10-29 | 14111976-003 | ND |
| 2014-10-29 | 14111976-004 | ND |
| 2014-10-29 | 14111976-005 | ND |
| 2014-11-03 | 3133888 | 39.0 ppb |
| 2014-11-03 | 3133890 | 37.0 ppb |
| 2014-11-03 | 3133889 | 24.0 ppb |
| 2014-11-04 | 3133891 | 62.0 ppb |
| 2014-11-04 | 3133893 | 26.0 ppb |
| 2014-11-04 | 3133892 | ND |
| 2014-11-24 | 35165509001AM | 917.0 ppb |
| 2014-12-01 | 3148089 | 56.0 ppb |
| 2014-12-01 | 3148090 | 45.0 ppb |
| 2014-12-01 | 3148091 | 43.0 ppb |
| 2014-12-01 | 3148093 | 29.0 ppb |
| 2014-12-01 | 3148088 | 16.0 ppb |
| 2014-12-01 | 3148092 | ND |
| 2015-01-14 | 00127_EXP-EUROFI | 27.0 ppb |
| 2015-01-14 | 00127_EXP-EUROFI | 27.0 ppb |
| 2015-01-14 | 00127_EXP-EUROFI | 25.0 ppb |
| 2015-01-14 | 00127_EXP-EUROFI | 20.0 ppb |
| 2015-01-15 | 00127_EXP-EUROFI | 25.0 ppb |
| 2015-01-15 | 00127_EXP-EUROFI | 21.0 ppb |
| 2015-01-26 | 35173052003AM | ND |
| 2015-01-26 | 35173052001AM | ND |
| 2015-01-26 | 35173052005AM | ND |
| 2015-01-27 | 35173052007AM | ND |
| 2015-01-27 | 35173052009AM | 150.0 ppb |
| 2015-01-28 | 35173425001AM | ND |
| 2015-02-03 | 00127_EXP-EUROFI | 54.0 ppb |
| 2015-02-03 | 00127_EXP-EUROFI | 50.0 ppb |
| 2015-02-03 | 00127_EXP-EUROFI | 41.0 ppb |
| 2015-02-03 | 00127_EXP-EUROFI | 19.0 ppb |
| 2015-02-03 | 00127_EXP-EUROFI | ND |
| 2015-02-03 | 00127_EXP-EUROFI | ND |
| 2015-03-03 | 00127_EXP-EUROFI | 37.0 ppb |
| 2015-03-03 | 00127_EXP-EUROFI | 35.0 ppb |
| 2015-03-03 | 00127_EXP-EUROFI | 34.0 ppb |
| 2015-03-03 | 00127_EXP-EUROFI | 18.0 ppb |
| 2015-03-03 | 00127_EXP-EUROFI | 12.0 ppb |
| 2015-03-03 | 00127_EXP-EUROFI | ND |
| 2015-04-15 | 00127_EXP-EUROFI | 63.0 ppb |
| 2015-04-15 | 00127_EXP-EUROFI | 60.0 ppb |
| 2015-04-15 | 00127_EXP-EUROFI | 55.0 ppb |
| 2015-04-15 | 00127_EXP-EUROFI | 40.0 ppb |
| 2015-04-15 | 00127_EXP-EUROFI | 30.0 ppb |
| 2015-04-15 | 00127_EXP-EUROFI | 12.0 ppb |
| 2015-05-05 | 00127_EXP-EUROFI | 57.0 ppb |
| 2015-05-05 | 00127_EXP-EUROFI | 40.0 ppb |
| 2015-05-05 | 00127_EXP-EUROFI | 40.0 ppb |
| 2015-05-05 | 00127_EXP-EUROFI | 38.0 ppb |
| 2015-05-05 | 00127_EXP-EUROFI | 22.0 ppb |
| 2015-05-05 | 00127_EXP-EUROFI | 18.0 ppb |
| 2015-06-02 | 00127_EXP-EUROFI | 54.0 ppb |
| 2015-06-02 | 00127_EXP-EUROFI | 54.0 ppb |
| 2015-06-02 | 00127_EXP-EUROFI | 48.0 ppb |
| 2015-06-02 | 00127_EXP-EUROFI | 33.0 ppb |
| 2015-06-02 | 00127_EXP-EUROFI | 28.0 ppb |
| 2015-06-02 | 00127_EXP-EUROFI | 12.0 ppb |
| 2015-07-14 | 460275-EUROFINS | 76.0 ppb |
| 2015-07-14 | 460275-EUROFINS | 70.0 ppb |
| 2015-07-14 | 460275-EUROFINS | 70.0 ppb |
| 2015-07-14 | 460275-EUROFINS | 52.0 ppb |
| 2015-07-14 | 460275-EUROFINS | 29.0 ppb |
| 2015-07-15 | 460275-EUROFINS | ND |
| 2015-08-06 | 460275-EUROFINS | 90.0 ppb |
| 2015-08-06 | 460275-EUROFINS | 88.0 ppb |
| 2015-08-06 | 460275-EUROFINS | 77.0 ppb |
| 2015-08-06 | 460275-EUROFINS | 30.0 ppb |
| 2015-08-06 | 460275-EUROFINS | 26.0 ppb |
| 2015-08-06 | 460275-EUROFINS | ND |
| 2015-09-08 | 460275-EUROFINS | 84.0 ppb |
| 2015-09-08 | 460275-EUROFINS | 77.0 ppb |
| 2015-09-08 | 460275-EUROFINS | 72.0 ppb |
| 2015-09-08 | 460275-EUROFINS | 31.0 ppb |
| 2015-09-08 | 460275-EUROFINS | 26.0 ppb |
| 2015-09-08 | 460275-EUROFINS | ND |
| 2015-10-14 | 460275-EUROFINS | 82.0 ppb |
| 2015-10-14 | 460275-EUROFINS | 71.0 ppb |
| 2015-10-14 | 460275-EUROFINS | 67.0 ppb |
| 2015-10-14 | 460275-EUROFINS | 50.0 ppb |
| 2015-10-14 | 460275-EUROFINS | 22.0 ppb |
| 2015-10-14 | 460275-EUROFINS | ND |
| 2015-11-04 | 460275-EUROFINS | 96.0 ppb |
| 2015-11-04 | 460275-EUROFINS | 95.0 ppb |
| 2015-11-04 | 460275-EUROFINS | 70.0 ppb |
| 2015-11-04 | 460275-EUROFINS | 28.0 ppb |
| 2015-11-04 | 460275-EUROFINS | 18.0 ppb |
| 2015-11-05 | 460275-EUROFINS | 26.0 ppb |
| 2015-12-07 | 460275-EUROFINS | 62.0 ppb |
| 2015-12-07 | 460275-EUROFINS | 52.0 ppb |
| 2015-12-07 | 460275-EUROFINS | 51.0 ppb |
| 2015-12-07 | 460275-EUROFINS | 38.0 ppb |
| 2015-12-07 | 460275-EUROFINS | 20.0 ppb |
| 2015-12-07 | 460275-EUROFINS | ND |
| 2015-12-17 | 35222266001AM | ND |
| 2016-01-13 | 3386421 | 54.0 ppb |
| 2016-01-13 | 3386420 | 38.0 ppb |
| 2016-01-13 | 3386424 | 36.0 ppb |
| 2016-01-13 | 3386423 | 34.0 ppb |
| 2016-01-13 | 3386422 | 28.0 ppb |
| 2016-01-13 | 3386425 | 13.0 ppb |
| 2016-02-10 | 3399337 | 45.0 ppb |
| 2016-02-10 | 3399338 | 41.0 ppb |
| 2016-02-10 | 3399334 | 33.0 ppb |
| 2016-02-10 | 3399335 | 30.0 ppb |
| 2016-02-10 | 3399336 | 27.0 ppb |
| 2016-02-10 | 3399339 | ND |
| 2016-03-04 | 3411553 | 48.0 ppb |
| 2016-03-07 | 3411552 | 50.0 ppb |
| 2016-03-07 | 3411556 | 44.0 ppb |
| 2016-03-07 | 3411554 | 34.0 ppb |
| 2016-03-07 | 3411555 | 32.0 ppb |
| 2016-03-07 | 3411551 | 21.0 ppb |
| 2016-04-13 | 3431542 | 73.0 ppb |
| 2016-04-13 | 3431543 | 53.0 ppb |
| 2016-04-13 | 3431539 | 51.0 ppb |
| 2016-04-13 | 3431544 | 45.0 ppb |
| 2016-04-13 | 3431541 | 23.0 ppb |
| 2016-04-13 | 3431540 | 14.0 ppb |
| 2016-05-09 | 3444846 | 86.0 ppb |
| 2016-05-09 | 3444847 | 54.0 ppb |
| 2016-05-09 | 3444849 | 47.0 ppb |
| 2016-05-09 | 3444851 | 47.0 ppb |
| 2016-05-09 | 3444850 | 18.0 ppb |
| 2016-05-09 | 3444848 | 13.0 ppb |
| 2016-06-15 | 3473055 | 410.0 ppb |
| 2016-06-15 | 3473054 | 83.0 ppb |
| 2016-06-15 | 3473056 | 74.0 ppb |
| 2016-06-15 | 3473052 | 72.0 ppb |
| 2016-06-15 | 3473057 | 25.0 ppb |
| 2016-06-15 | 3473053 | 20.0 ppb |
| 2016-07-06 | 3486457 | 220.0 ppb |
| 2016-07-06 | 3486462 | 80.0 ppb |
| 2016-07-06 | 3486461 | 74.0 ppb |
| 2016-07-06 | 3486460 | 51.0 ppb |
| 2016-07-06 | 3486459 | 29.0 ppb |
| 2016-07-06 | 3486458 | ND |
| 2016-08-15 | 3522845 | 340.0 ppb |
| 2016-08-15 | 3522848 | 81.0 ppb |
| 2016-08-15 | 3522847 | 66.0 ppb |
| 2016-08-15 | 3522846 | 63.0 ppb |
| 2016-08-15 | 3522843 | 29.0 ppb |
| 2016-08-15 | 3522844 | 25.0 ppb |
| 2016-09-12 | 3543562 | 73.0 ppb |
| 2016-09-12 | 3543564 | 63.0 ppb |
| 2016-09-12 | 3543561 | 44.0 ppb |
| 2016-09-12 | 3543563 | 43.0 ppb |
| 2016-09-12 | 3543560 | 10.00 ppb |
| 2016-09-12 | 3543559 | ND |
| 2016-10-12 | 3564122 | 100.0 ppb |
| 2016-10-12 | 3564121 | 72.0 ppb |
| 2016-10-12 | 3564119 | 55.0 ppb |
| 2016-10-12 | 3564118 | 55.0 ppb |
| 2016-10-12 | 3564117 | 33.0 ppb |
| 2016-10-12 | 3564123 | 26.0 ppb |
| 2016-11-07 | 3580867 | 140.0 ppb |
| 2016-11-07 | 3580866 | 63.0 ppb |
| 2016-11-07 | 3580869 | 47.0 ppb |
| 2016-11-07 | 3580865 | 44.0 ppb |
| 2016-11-07 | 3580868 | 17.0 ppb |
| 2016-11-07 | 3580870 | 14.0 ppb |
| 2016-12-05 | 3598744 | 59.0 ppb |
| 2016-12-05 | 3598747 | 59.0 ppb |
| 2016-12-05 | 3598748 | 59.0 ppb |
| 2016-12-05 | 3598745 | 54.0 ppb |
| 2016-12-05 | 3598743 | 26.0 ppb |
| 2016-12-05 | 3598749 | 23.0 ppb |
| 2017-01-11 | 3620611 | 440.0 ppb |
| 2017-01-11 | 3620609 | 45.0 ppb |
| 2017-01-11 | 3620613 | 36.0 ppb |
| 2017-01-11 | 3620607 | 33.0 ppb |
| 2017-01-11 | 3620612 | ND |
| 2017-01-11 | 3620608 | ND |
| 2017-02-07 | 3634914 | 280.0 ppb |
| 2017-02-07 | 3634916 | 30.0 ppb |
| 2017-02-07 | 3634915 | 26.0 ppb |
| 2017-02-07 | 3634913 | 24.0 ppb |
| 2017-02-07 | 3634912 | 22.0 ppb |
| 2017-02-07 | 3634917 | 88.0 ppb |
| 2017-03-08 | 3651907 | 220.0 ppb |
| 2017-03-08 | 3651908 | 70.0 ppb |
| 2017-03-08 | 3651906 | 19.0 ppb |
| 2017-03-08 | 3651905 | 18.0 ppb |
| 2017-03-08 | 3651904 | ND |
| 2017-03-08 | 3651909 | ND |
| 2017-04-05 | 3669561 | 66.0 ppb |
| 2017-04-05 | 3669562 | 12.0 ppb |
| 2017-04-06 | 3669558 | 140.0 ppb |
| 2017-04-06 | 3669559 | 59.0 ppb |
| 2017-04-06 | 3669557 | 47.0 ppb |
| 2017-04-06 | 3669560 | 14.0 ppb |
| 2017-05-09 | 3691758 | 300.0 ppb |
| 2017-05-09 | 3691755 | 60.0 ppb |
| 2017-05-09 | 3691753 | 12.0 ppb |
| 2017-05-10 | 3691756 | 140.0 ppb |
| 2017-05-10 | 3691754 | 50.0 ppb |
| 2017-05-10 | 3691757 | ND |
| 2017-06-07 | 3709516 | 110.0 ppb |
| 2017-06-07 | 3709519 | 100.0 ppb |
| 2017-06-07 | 3709515 | 65.0 ppb |
| 2017-06-07 | 3709520 | 62.0 ppb |
| 2017-06-07 | 3709518 | ND |
| 2017-06-07 | 3709517 | ND |
| 2017-07-10 | 3731432 | 520.0 ppb |
| 2017-07-11 | 3731435 | 120.0 ppb |
| 2017-07-11 | 3731431 | 64.0 ppb |
| 2017-07-11 | 3731434 | 64.0 ppb |
| 2017-07-11 | 3731433 | ND |
| 2017-07-11 | 3731436 | ND |
| 2017-08-08 | 3752768 | 220.0 ppb |
| 2017-08-08 | 3752771 | 150.0 ppb |
| 2017-08-08 | 3752769 | 68.0 ppb |
| 2017-08-08 | 3752770 | 50.0 ppb |
| 2017-08-08 | 3752766 | 28.0 ppb |
| 2017-08-08 | 3752767 | 27.0 ppb |
| 2017-09-11 | 3778324 | 230.0 ppb |
| 2017-09-11 | 3778320 | 120.0 ppb |
| 2017-09-11 | 3778322 | 44.0 ppb |
| 2017-09-11 | 3778321 | 10.00 ppb |
| 2017-09-11 | 3778323 | ND |
| 2017-09-13 | 3778319 | 74.0 ppb |
| 2017-10-03 | 3793131 | 260.0 ppb |
| 2017-10-03 | 3793134 | 110.0 ppb |
| 2017-10-03 | 3793133 | 57.0 ppb |
| 2017-10-03 | 3793132 | 51.0 ppb |
| 2017-10-03 | 3793130 | ND |
| 2017-10-03 | 3793129 | ND |
| 2017-11-06 | 3816453 | 440.0 ppb |
| 2017-11-06 | 3816456 | 140.0 ppb |
| 2017-11-06 | 3816454 | 74.0 ppb |
| 2017-11-06 | 3816457 | 67.0 ppb |
| 2017-11-06 | 3816452 | 17.0 ppb |
| 2017-11-06 | 3816455 | 10.00 ppb |
| 2017-12-05 | 3833743 | 200.0 ppb |
| 2017-12-05 | 3833746 | 130.0 ppb |
| 2017-12-05 | 3833744 | 41.0 ppb |
| 2017-12-05 | 3833741 | 38.0 ppb |
| 2017-12-05 | 3833745 | 27.0 ppb |
| 2017-12-05 | 3833742 | 19.0 ppb |
| 2018-01-04 | 3851176 | 12.0 ppb |
| 2018-01-04 | 3851177 | 290.0 ppb |
| 2018-01-04 | 3851178 | 35.0 ppb |
| 2018-01-04 | 3851179 | 110.0 ppb |
| 2018-01-09 | 3851174 | 11.0 ppb |
| 2018-01-09 | 3851175 | 47.0 ppb |
| 2018-02-06 | 3868531 | 120.0 ppb |
| 2018-02-06 | 3868532 | 12.0 ppb |
| 2018-02-06 | 3868533 | 36.0 ppb |
| 2018-02-07 | 3868534 | 33.0 ppb |
| 2018-02-07 | 3868535 | 210.0 ppb |
| 2018-02-07 | 3868536 | 12.0 ppb |
| 2018-03-05 | 3887046 | 130.0 ppb |
| 2018-03-05 | 3887047 | 32.0 ppb |
| 2018-03-05 | 3887048 | 44.0 ppb |
| 2018-03-05 | 3887049 | 48.0 ppb |
| 2018-03-06 | 3887051 | 99.0 ppb |
| 2018-03-07 | 3887050 | 26.0 ppb |
| 2018-04-02 | 3904318 | 55.0 ppb |
| 2018-04-02 | 3904319 | 37.0 ppb |
| 2018-04-02 | 3904320 | 41.0 ppb |
| 2018-04-02 | 3904321 | 14.0 ppb |
| 2018-04-02 | 3904322 | 73.0 ppb |
| 2018-04-02 | 3904323 | 13.0 ppb |
| 2018-05-02 | 3929559 | ND |
| 2018-05-02 | 3929560 | 10.00 ppb |
| 2018-05-02 | 3929561 | 240.0 ppb |
| 2018-05-02 | 3929562 | 40.0 ppb |
| 2018-05-02 | 3929563 | 68.0 ppb |
| 2018-05-02 | 3929564 | 43.0 ppb |
| 2018-06-05 | 3958199 | 24.0 ppb |
| 2018-06-05 | 3958200 | 480.0 ppb |
| 2018-06-05 | 3958201 | 26.0 ppb |
| 2018-06-05 | 3958202 | 43.0 ppb |
| 2018-06-05 | 3958203 | 96.0 ppb |
| 2018-06-05 | 3958204 | 45.0 ppb |
| 2018-07-10 | 3987944 | ND |
| 2018-07-10 | 3987945 | ND |
| 2018-07-10 | 3987946 | 65.0 ppb |
| 2018-07-11 | 3987947 | 120.0 ppb |
| 2018-07-11 | 3987948 | 45.0 ppb |
| 2018-07-11 | 3987949 | 72.0 ppb |
| 2018-08-09 | 4017838 | 140.0 ppb |
| 2018-08-09 | 4017839 | 68.0 ppb |
| 2018-08-09 | 4017840 | 23.0 ppb |
| 2018-08-09 | 4017841 | 23.0 ppb |
| 2018-08-09 | 4017842 | 300.0 ppb |
| 2018-08-09 | 4017843 | 78.0 ppb |
| 2018-09-11 | 4054031 | 120.0 ppb |
| 2018-09-11 | 4054032 | 92.0 ppb |
| 2018-09-11 | 4054033 | 19.0 ppb |
| 2018-09-11 | 4054034 | 96.0 ppb |
| 2018-09-11 | 4054035 | 92.0 ppb |
| 2018-09-11 | 4054036 | 18.0 ppb |
| 2018-10-23 | 4101946 | ND |
| 2018-10-23 | 4101947 | 70.0 ppb |
| 2018-10-23 | 4101948 | 78.0 ppb |
| 2018-10-23 | 4101949 | ND |
| 2018-10-23 | 4101950 | 97.0 ppb |
| 2018-10-23 | 4101951 | 220.0 ppb |
| 2018-11-13 | 4125248 | 21.0 ppb |
| 2018-11-13 | 4125249 | 110.0 ppb |
| 2018-11-13 | 4125250 | 140.0 ppb |
| 2018-11-13 | 4125251 | 62.0 ppb |
| 2018-11-13 | 4125252 | 25.0 ppb |
| 2018-11-13 | 4125253 | 33.0 ppb |
| 2018-12-03 | 4141858 | 56.0 ppb |
| 2018-12-03 | 4141859 | 94.0 ppb |
| 2018-12-04 | 4141860 | 20.0 ppb |
| 2018-12-04 | 4141861 | 53.0 ppb |
| 2018-12-05 | 4141862 | 46.0 ppb |
| 2018-12-05 | 4141863 | 21.0 ppb |
| 2019-01-07 | 4168091 | 15.0 ppb |
| 2019-01-07 | 4168092 | 30.0 ppb |
| 2019-01-07 | 4168093 | 210.0 ppb |
| 2019-01-07 | 4168094 | 27.0 ppb |
| 2019-01-07 | 4168095 | 83.0 ppb |
| 2019-01-07 | 4168096 | 13.0 ppb |
| 2019-02-06 | 4194487 | 38.0 ppb |
| 2019-02-06 | 4194488 | 50.0 ppb |
| 2019-02-06 | 4194489 | 240.0 ppb |
| 2019-02-06 | 4194490 | 19.0 ppb |
| 2019-02-06 | 4194491 | 19.0 ppb |
| 2019-02-06 | 4194492 | 52.0 ppb |
| 2019-03-12 | 4226514 | 20.0 ppb |
| 2019-03-12 | 4226515 | 20.0 ppb |
| 2019-03-12 | 4226516 | 240.0 ppb |
| 2019-03-12 | 4226517 | 47.0 ppb |
| 2019-03-12 | 4226518 | 78.0 ppb |
| 2019-03-12 | 4226519 | 47.0 ppb |
| 2019-04-08 | 4256447 | 25.0 ppb |
| 2019-04-08 | 4256448 | 93.0 ppb |
| 2019-04-08 | 4256449 | 21.0 ppb |
| 2019-04-09 | 4256450 | 53.0 ppb |
| 2019-04-09 | 4256451 | 71.0 ppb |
| 2019-04-09 | 4256452 | 23.0 ppb |
| 2019-05-06 | 4291919 | 20.0 ppb |
| 2019-05-07 | 4291918 | 90.0 ppb |
| 2019-05-08 | 4291914 | 210.0 ppb |
| 2019-05-08 | 4291915 | 19.0 ppb |
| 2019-05-08 | 4291916 | 49.0 ppb |
| 2019-05-08 | 4291917 | 21.0 ppb |
| 2019-06-10 | 4323626 | 61.0 ppb |
| 2019-06-10 | 4323627 | 58.0 ppb |
| 2019-06-10 | 4323628 | 25.0 ppb |
| 2019-06-11 | 4323629 | 140.0 ppb |
| 2019-06-11 | 4323630 | 24.0 ppb |
| 2019-06-11 | 4323631 | 56.0 ppb |
| 2019-07-16 | 4356744 | 140.0 ppb |
| 2019-07-16 | 4356746 | 10.00 ppb |
| 2019-07-16 | 4356747 | 12.0 ppb |
| 2019-07-16 | 4356748 | 73.0 ppb |
| 2019-07-16 | 4356749 | 31.0 ppb |
| 2019-07-17 | 4356745 | 54.0 ppb |
| 2019-08-12 | 4387633 | 21.0 ppb |
| 2019-08-12 | 4387634 | 29.0 ppb |
| 2019-08-12 | 4387635 | 83.0 ppb |
| 2019-08-13 | 4387636 | 84.0 ppb |
| 2019-08-13 | 4387637 | 17.0 ppb |
| 2019-08-13 | 4387638 | 78.0 ppb |
| 2019-09-04 | 4411181 | 26.0 ppb |
| 2019-09-04 | 4411182 | 28.0 ppb |
| 2019-09-04 | 4411183 | 110.0 ppb |
| 2019-09-04 | 4411184 | 250.0 ppb |
| 2019-09-04 | 4411185 | 220.0 ppb |
| 2019-09-04 | 4411186 | 260.0 ppb |
| 2019-10-15 | 4457888 | 120.0 ppb |
| 2019-10-15 | 4457889 | 120.0 ppb |
| 2019-10-15 | 4457890 | 21.0 ppb |
| 2019-10-15 | 4457891 | 160.0 ppb |
| 2019-10-16 | 4457887 | 22.0 ppb |
| 2019-10-16 | 4457892 | 120.0 ppb |
| 2019-11-05 | 4478066 | ND |
| 2019-11-05 | 4478067 | ND |
| 2019-11-05 | 4478068 | 210.0 ppb |
| 2019-11-05 | 4478069 | 63.0 ppb |
| 2019-11-05 | 4478070 | 67.0 ppb |
| 2019-11-05 | 4478071 | 65.0 ppb |
| 2019-12-03 | 4504319 | 16.0 ppb |
| 2019-12-03 | 4504320 | 32.0 ppb |
| 2019-12-03 | 4504321 | 31.0 ppb |
| 2019-12-04 | 4504318 | 460.0 ppb |
| 2019-12-04 | 4504322 | ND |
| 2019-12-04 | 4504323 | 33.0 ppb |