Manganese
West Boylston Water District
Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.
645
Samples
0
Samples exceeding legal limit (MCL)
424
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 342.4 ppb | 50 | 50 | 2.20 ppb - 640.0 ppb |
| 2015 | 224.8 ppb | 125 | 113 | ND - 1,800.0 ppb |
| 2016 | 281.3 ppb | 113 | 104 | ND - 2,200.0 ppb |
| 2017 | 281.4 ppb | 126 | 105 | ND - 1,860.0 ppb |
| 2018 | 293.6 ppb | 119 | 113 | ND - 837.0 ppb |
| 2019 | 392.1 ppb | 112 | 111 | ND - 1,140.0 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 100 ppb
The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2014-01-15 | 84.0 ppb |
| 2014-01-15 | 300.0 ppb |
| 2014-01-15 | 520.0 ppb |
| 2014-01-15 | 310.0 ppb |
| 2014-02-12 | 68.0 ppb |
| 2014-02-12 | 350.0 ppb |
| 2014-02-12 | 370.0 ppb |
| 2014-02-12 | 370.0 ppb |
| 2014-03-11 | 44.0 ppb |
| 2014-03-11 | 350.0 ppb |
| 2014-03-11 | 200.0 ppb |
| 2014-03-11 | 340.0 ppb |
| 2014-04-08 | 100.0 ppb |
| 2014-04-08 | 360.0 ppb |
| 2014-04-08 | 270.0 ppb |
| 2014-04-08 | 360.0 ppb |
| 2014-05-13 | 380.0 ppb |
| 2014-05-13 | 400.0 ppb |
| 2014-05-21 | 100.0 ppb |
| 2014-05-21 | 180.0 ppb |
| 2014-06-10 | 90.0 ppb |
| 2014-06-10 | 420.0 ppb |
| 2014-06-10 | 290.0 ppb |
| 2014-06-10 | 420.0 ppb |
| 2014-07-08 | 520.0 ppb |
| 2014-07-08 | 400.0 ppb |
| 2014-07-08 | 590.0 ppb |
| 2014-08-12 | 120.0 ppb |
| 2014-08-12 | 380.0 ppb |
| 2014-08-12 | 570.0 ppb |
| 2014-08-12 | 390.0 ppb |
| 2014-09-09 | 320.0 ppb |
| 2014-09-09 | 380.0 ppb |
| 2014-09-09 | 590.0 ppb |
| 2014-09-09 | 390.0 ppb |
| 2014-10-15 | 390.0 ppb |
| 2014-10-15 | 350.0 ppb |
| 2014-10-15 | 610.0 ppb |
| 2014-10-15 | 360.0 ppb |
| 2014-11-13 | 410.0 ppb |
| 2014-11-13 | 420.0 ppb |
| 2014-11-13 | 2.20 ppb |
| 2014-11-13 | 340.0 ppb |
| 2014-11-13 | 350.0 ppb |
| 2014-11-13 | 640.0 ppb |
| 2014-11-13 | 380.0 ppb |
| 2014-12-08 | 590.0 ppb |
| 2014-12-08 | 370.0 ppb |
| 2014-12-08 | 210.0 ppb |
| 2014-12-08 | 370.0 ppb |
| 2015-01-12 | 110.0 ppb |
| 2015-01-12 | 2.20 ppb |
| 2015-01-12 | 29.0 ppb |
| 2015-01-12 | 26.0 ppb |
| 2015-01-12 | 180.0 ppb |
| 2015-01-12 | 250.0 ppb |
| 2015-01-12 | 260.0 ppb |
| 2015-01-12 | 390.0 ppb |
| 2015-01-12 | 530.0 ppb |
| 2015-01-12 | 410.0 ppb |
| 2015-02-17 | 8.60 ppb |
| 2015-02-17 | 6.00 ppb |
| 2015-02-17 | 14.0 ppb |
| 2015-02-17 | 5.10 ppb |
| 2015-02-17 | 210.0 ppb |
| 2015-02-17 | 41.0 ppb |
| 2015-02-17 | 210.0 ppb |
| 2015-02-17 | 400.0 ppb |
| 2015-02-17 | 380.0 ppb |
| 2015-02-17 | 420.0 ppb |
| 2015-03-10 | 3.60 ppb |
| 2015-03-10 | 36.0 ppb |
| 2015-03-10 | 12.0 ppb |
| 2015-03-10 | 150.0 ppb |
| 2015-03-10 | 400.0 ppb |
| 2015-03-10 | 260.0 ppb |
| 2015-03-10 | 400.0 ppb |
| 2015-03-12 | 14.0 ppb |
| 2015-03-17 | 4.40 ppb |
| 2015-04-07 | 29.0 ppb |
| 2015-04-07 | 11.0 ppb |
| 2015-04-07 | 2.20 ppb |
| 2015-04-07 | 400.0 ppb |
| 2015-04-07 | 77.0 ppb |
| 2015-04-07 | 14.0 ppb |
| 2015-04-07 | 310.0 ppb |
| 2015-04-07 | 510.0 ppb |
| 2015-04-07 | 410.0 ppb |
| 2015-04-27 | 10.00 ppb |
| 2015-05-13 | 26.0 ppb |
| 2015-05-13 | 6.70 ppb |
| 2015-05-13 | ND |
| 2015-05-13 | ND |
| 2015-05-13 | 450.0 ppb |
| 2015-05-13 | 37.0 ppb |
| 2015-05-13 | 100.0 ppb |
| 2015-05-13 | 350.0 ppb |
| 2015-05-13 | 1,300.0 ppb |
| 2015-05-13 | 360.0 ppb |
| 2015-05-27 | 760.0 ppb |
| 2015-05-27 | 2.40 ppb |
| 2015-05-27 | 1,700.0 ppb |
| 2015-06-09 | 14.0 ppb |
| 2015-06-09 | 7.00 ppb |
| 2015-06-09 | 4.00 ppb |
| 2015-06-09 | 3.60 ppb |
| 2015-06-09 | 850.0 ppb |
| 2015-06-09 | 55.0 ppb |
| 2015-06-09 | 100.0 ppb |
| 2015-06-09 | 380.0 ppb |
| 2015-06-09 | 1,800.0 ppb |
| 2015-06-09 | 390.0 ppb |
| 2015-07-14 | 25.0 ppb |
| 2015-07-14 | 2.50 ppb |
| 2015-07-14 | 4.20 ppb |
| 2015-07-14 | 2.20 ppb |
| 2015-07-14 | 260.0 ppb |
| 2015-07-14 | 38.0 ppb |
| 2015-07-14 | 50.0 ppb |
| 2015-07-14 | 400.0 ppb |
| 2015-07-14 | 790.0 ppb |
| 2015-07-14 | 400.0 ppb |
| 2015-08-10 | 23.0 ppb |
| 2015-08-10 | ND |
| 2015-08-10 | 4.80 ppb |
| 2015-08-10 | ND |
| 2015-08-10 | 160.0 ppb |
| 2015-08-10 | 150.0 ppb |
| 2015-08-10 | 24.0 ppb |
| 2015-08-10 | 28.0 ppb |
| 2015-08-10 | 2.50 ppb |
| 2015-08-10 | 370.0 ppb |
| 2015-08-10 | 370.0 ppb |
| 2015-08-10 | 710.0 ppb |
| 2015-08-10 | 380.0 ppb |
| 2015-09-08 | 14.0 ppb |
| 2015-09-08 | ND |
| 2015-09-08 | 2.40 ppb |
| 2015-09-08 | ND |
| 2015-09-08 | 370.0 ppb |
| 2015-09-08 | 28.0 ppb |
| 2015-09-08 | 50.0 ppb |
| 2015-09-08 | 190.0 ppb |
| 2015-09-08 | 770.0 ppb |
| 2015-09-08 | 370.0 ppb |
| 2015-10-13 | 400.0 ppb |
| 2015-10-13 | ND |
| 2015-10-13 | 2.50 ppb |
| 2015-10-13 | ND |
| 2015-10-13 | 260.0 ppb |
| 2015-10-13 | 20.0 ppb |
| 2015-10-13 | 32.0 ppb |
| 2015-10-13 | 350.0 ppb |
| 2015-10-13 | 810.0 ppb |
| 2015-10-13 | 370.0 ppb |
| 2015-11-10 | 64.0 ppb |
| 2015-11-10 | ND |
| 2015-11-10 | 2.30 ppb |
| 2015-11-10 | 2.80 ppb |
| 2015-11-10 | 270.0 ppb |
| 2015-11-10 | 32.0 ppb |
| 2015-11-10 | 45.0 ppb |
| 2015-11-10 | 350.0 ppb |
| 2015-11-10 | 840.0 ppb |
| 2015-11-10 | 360.0 ppb |
| 2015-12-08 | 14.0 ppb |
| 2015-12-08 | ND |
| 2015-12-08 | ND |
| 2015-12-08 | ND |
| 2015-12-08 | 600.0 ppb |
| 2015-12-08 | 37.0 ppb |
| 2015-12-08 | 60.0 ppb |
| 2015-12-08 | 360.0 ppb |
| 2015-12-08 | 830.0 ppb |
| 2015-12-08 | 370.0 ppb |
| 2016-01-12 | 20.0 ppb |
| 2016-01-12 | 2.10 ppb |
| 2016-01-12 | 7.70 ppb |
| 2016-01-12 | ND |
| 2016-01-12 | 400.0 ppb |
| 2016-01-12 | 57.0 ppb |
| 2016-01-12 | 84.0 ppb |
| 2016-01-12 | 370.0 ppb |
| 2016-01-12 | 940.0 ppb |
| 2016-01-12 | 370.0 ppb |
| 2016-02-17 | 23.0 ppb |
| 2016-02-17 | 3.40 ppb |
| 2016-02-17 | 19.0 ppb |
| 2016-02-17 | 15.0 ppb |
| 2016-02-17 | 680.0 ppb |
| 2016-02-17 | 80.0 ppb |
| 2016-02-17 | 130.0 ppb |
| 2016-02-17 | 390.0 ppb |
| 2016-02-17 | 850.0 ppb |
| 2016-02-17 | 400.0 ppb |
| 2016-03-08 | 150.0 ppb |
| 2016-03-08 | 2.50 ppb |
| 2016-03-08 | 42.0 ppb |
| 2016-03-08 | 3.70 ppb |
| 2016-03-08 | 230.0 ppb |
| 2016-03-08 | 27.0 ppb |
| 2016-03-08 | 150.0 ppb |
| 2016-03-08 | 440.0 ppb |
| 2016-03-08 | 880.0 ppb |
| 2016-03-08 | 440.0 ppb |
| 2016-04-20 | 12.0 ppb |
| 2016-04-20 | 3.00 ppb |
| 2016-04-20 | 3.30 ppb |
| 2016-04-20 | 3.00 ppb |
| 2016-04-20 | 120.0 ppb |
| 2016-04-20 | 37.0 ppb |
| 2016-04-20 | 28.0 ppb |
| 2016-04-20 | 520.0 ppb |
| 2016-04-20 | 590.0 ppb |
| 2016-04-20 | 460.0 ppb |
| 2016-05-10 | 11.0 ppb |
| 2016-05-10 | 25.0 ppb |
| 2016-05-10 | 2.20 ppb |
| 2016-05-10 | 2.30 ppb |
| 2016-05-10 | 90.0 ppb |
| 2016-05-10 | 18.0 ppb |
| 2016-05-10 | 130.0 ppb |
| 2016-05-10 | 440.0 ppb |
| 2016-05-10 | 420.0 ppb |
| 2016-05-10 | 440.0 ppb |
| 2016-06-17 | 2,200.0 ppb |
| 2016-06-17 | 2,100.0 ppb |
| 2016-07-12 | 120.0 ppb |
| 2016-07-12 | 6.70 ppb |
| 2016-07-12 | 3.70 ppb |
| 2016-07-12 | 3.30 ppb |
| 2016-07-12 | 840.0 ppb |
| 2016-07-12 | 340.0 ppb |
| 2016-07-12 | 120.0 ppb |
| 2016-07-12 | 380.0 ppb |
| 2016-07-12 | 1,100.0 ppb |
| 2016-07-12 | 370.0 ppb |
| 2016-08-09 | 540.0 ppb |
| 2016-08-09 | 7.10 ppb |
| 2016-08-09 | 13.0 ppb |
| 2016-08-09 | 3.00 ppb |
| 2016-08-09 | 750.0 ppb |
| 2016-08-09 | 77.0 ppb |
| 2016-08-09 | 79.0 ppb |
| 2016-08-09 | 320.0 ppb |
| 2016-08-09 | 1,300.0 ppb |
| 2016-08-09 | 320.0 ppb |
| 2016-09-13 | 22.0 ppb |
| 2016-09-13 | 22.0 ppb |
| 2016-09-13 | ND |
| 2016-09-13 | ND |
| 2016-09-13 | 525.0 ppb |
| 2016-09-13 | 68.0 ppb |
| 2016-09-13 | 36.0 ppb |
| 2016-09-13 | 325.0 ppb |
| 2016-09-13 | 938.0 ppb |
| 2016-09-13 | 339.0 ppb |
| 2016-10-11 | 93.0 ppb |
| 2016-10-11 | ND |
| 2016-10-11 | ND |
| 2016-10-11 | ND |
| 2016-10-11 | 416.0 ppb |
| 2016-10-11 | 78.0 ppb |
| 2016-10-11 | 106.0 ppb |
| 2016-10-11 | 343.0 ppb |
| 2016-10-11 | 897.0 ppb |
| 2016-10-11 | 352.0 ppb |
| 2016-11-15 | 33.0 ppb |
| 2016-11-15 | 39.0 ppb |
| 2016-11-15 | 40.0 ppb |
| 2016-11-15 | 43.0 ppb |
| 2016-11-15 | 419.0 ppb |
| 2016-11-15 | 82.0 ppb |
| 2016-11-15 | 207.0 ppb |
| 2016-11-15 | 451.0 ppb |
| 2016-11-15 | 901.0 ppb |
| 2016-11-15 | 472.0 ppb |
| 2016-12-13 | 150.0 ppb |
| 2016-12-13 | 18.0 ppb |
| 2016-12-13 | ND |
| 2016-12-13 | ND |
| 2016-12-13 | 136.0 ppb |
| 2016-12-13 | 297.0 ppb |
| 2016-12-13 | 956.0 ppb |
| 2016-12-13 | 441.0 ppb |
| 2016-12-19 | 561.0 ppb |
| 2016-12-19 | ND |
| 2016-12-19 | 430.0 ppb |
| 2017-01-10 | 21.0 ppb |
| 2017-01-10 | 71.0 ppb |
| 2017-01-10 | 37.0 ppb |
| 2017-01-10 | 36.0 ppb |
| 2017-01-10 | 389.0 ppb |
| 2017-01-10 | 102.0 ppb |
| 2017-01-10 | 231.0 ppb |
| 2017-01-10 | 390.0 ppb |
| 2017-01-10 | 576.0 ppb |
| 2017-01-10 | 445.0 ppb |
| 2017-02-14 | 35.0 ppb |
| 2017-02-14 | 10.00 ppb |
| 2017-02-14 | 53.0 ppb |
| 2017-02-14 | 38.0 ppb |
| 2017-02-14 | 306.0 ppb |
| 2017-02-14 | 79.0 ppb |
| 2017-02-14 | 214.0 ppb |
| 2017-02-14 | 419.0 ppb |
| 2017-02-14 | 683.0 ppb |
| 2017-02-14 | 453.0 ppb |
| 2017-03-13 | 90.3 ppb |
| 2017-03-13 | 12.1 ppb |
| 2017-03-13 | 14.4 ppb |
| 2017-03-13 | ND |
| 2017-03-13 | 398.0 ppb |
| 2017-03-13 | 95.3 ppb |
| 2017-03-13 | 225.0 ppb |
| 2017-03-13 | 491.0 ppb |
| 2017-04-11 | 47.0 ppb |
| 2017-04-11 | ND |
| 2017-04-11 | ND |
| 2017-04-11 | ND |
| 2017-04-11 | 1,170.0 ppb |
| 2017-04-11 | 67.0 ppb |
| 2017-04-11 | 143.0 ppb |
| 2017-04-11 | 1,000.0 ppb |
| 2017-04-21 | 403.0 ppb |
| 2017-04-21 | 416.0 ppb |
| 2017-05-09 | 648.0 ppb |
| 2017-05-09 | 104.0 ppb |
| 2017-05-09 | 35.0 ppb |
| 2017-05-09 | ND |
| 2017-05-09 | 798.0 ppb |
| 2017-05-09 | 76.0 ppb |
| 2017-05-09 | 157.0 ppb |
| 2017-05-09 | 754.0 ppb |
| 2017-05-09 | 1,860.0 ppb |
| 2017-05-09 | 515.0 ppb |
| 2017-05-17 | 106.0 ppb |
| 2017-05-17 | 1,180.0 ppb |
| 2017-05-17 | 461.0 ppb |
| 2017-05-17 | 1,590.0 ppb |
| 2017-05-17 | 476.0 ppb |
| 2017-06-14 | 68.0 ppb |
| 2017-06-14 | 37.0 ppb |
| 2017-06-14 | ND |
| 2017-06-14 | ND |
| 2017-06-14 | 252.0 ppb |
| 2017-06-14 | 37.0 ppb |
| 2017-06-14 | 123.0 ppb |
| 2017-06-14 | 456.0 ppb |
| 2017-06-14 | 570.0 ppb |
| 2017-06-14 | 466.0 ppb |
| 2017-07-12 | 20.0 ppb |
| 2017-07-12 | ND |
| 2017-07-12 | ND |
| 2017-07-12 | ND |
| 2017-07-12 | ND |
| 2017-07-12 | 18.0 ppb |
| 2017-07-12 | 172.0 ppb |
| 2017-07-12 | 424.0 ppb |
| 2017-07-12 | 329.0 ppb |
| 2017-07-12 | 441.0 ppb |
| 2017-08-16 | 107.0 ppb |
| 2017-08-16 | 29.0 ppb |
| 2017-08-16 | ND |
| 2017-08-16 | ND |
| 2017-08-16 | 81.0 ppb |
| 2017-08-16 | ND |
| 2017-08-16 | 209.0 ppb |
| 2017-08-16 | 449.0 ppb |
| 2017-08-16 | 294.0 ppb |
| 2017-08-16 | 455.0 ppb |
| 2017-09-13 | 132.0 ppb |
| 2017-09-13 | 147.0 ppb |
| 2017-09-13 | 13.0 ppb |
| 2017-09-13 | ND |
| 2017-09-13 | 195.0 ppb |
| 2017-09-13 | 69.0 ppb |
| 2017-09-13 | 167.0 ppb |
| 2017-09-13 | 408.0 ppb |
| 2017-09-13 | 406.0 ppb |
| 2017-09-13 | 418.0 ppb |
| 2017-10-04 | 596.0 ppb |
| 2017-10-04 | 196.0 ppb |
| 2017-10-04 | ND |
| 2017-10-04 | ND |
| 2017-10-04 | 659.0 ppb |
| 2017-10-04 | 492.0 ppb |
| 2017-10-04 | 18.0 ppb |
| 2017-10-04 | 541.0 ppb |
| 2017-10-04 | 940.0 ppb |
| 2017-10-04 | 375.0 ppb |
| 2017-11-07 | 238.0 ppb |
| 2017-11-07 | 25.0 ppb |
| 2017-11-07 | ND |
| 2017-11-07 | ND |
| 2017-11-07 | 539.0 ppb |
| 2017-11-07 | 317.0 ppb |
| 2017-11-07 | 154.0 ppb |
| 2017-11-07 | 374.0 ppb |
| 2017-11-07 | 793.0 ppb |
| 2017-11-07 | 375.0 ppb |
| 2017-11-14 | 459.0 ppb |
| 2017-11-14 | ND |
| 2017-11-14 | 402.0 ppb |
| 2017-12-12 | 196.0 ppb |
| 2017-12-12 | 94.0 ppb |
| 2017-12-12 | 12.0 ppb |
| 2017-12-12 | ND |
| 2017-12-12 | 736.0 ppb |
| 2017-12-12 | 262.0 ppb |
| 2017-12-12 | 314.0 ppb |
| 2017-12-12 | 399.0 ppb |
| 2017-12-12 | 627.0 ppb |
| 2017-12-12 | 410.0 ppb |
| 2018-01-09 | 31.0 ppb |
| 2018-01-09 | 19.0 ppb |
| 2018-01-09 | ND |
| 2018-01-09 | 14.0 ppb |
| 2018-01-09 | 231.0 ppb |
| 2018-01-09 | 180.0 ppb |
| 2018-01-09 | 179.0 ppb |
| 2018-01-09 | 376.0 ppb |
| 2018-01-09 | 447.0 ppb |
| 2018-01-09 | 405.0 ppb |
| 2018-02-13 | 151.0 ppb |
| 2018-02-13 | 85.0 ppb |
| 2018-02-13 | 12.0 ppb |
| 2018-02-13 | ND |
| 2018-02-13 | 585.0 ppb |
| 2018-02-13 | 183.0 ppb |
| 2018-02-13 | 232.0 ppb |
| 2018-02-13 | 405.0 ppb |
| 2018-02-13 | 368.0 ppb |
| 2018-02-13 | 384.0 ppb |
| 2018-03-20 | 136.0 ppb |
| 2018-03-20 | 100.0 ppb |
| 2018-03-20 | 26.0 ppb |
| 2018-03-20 | ND |
| 2018-03-20 | 119.0 ppb |
| 2018-03-20 | 151.0 ppb |
| 2018-03-20 | 382.0 ppb |
| 2018-03-20 | 475.0 ppb |
| 2018-03-20 | 151.0 ppb |
| 2018-03-20 | 488.0 ppb |
| 2018-04-10 | 187.0 ppb |
| 2018-04-10 | 104.0 ppb |
| 2018-04-10 | 23.3 ppb |
| 2018-04-10 | 22.0 ppb |
| 2018-04-10 | 361.0 ppb |
| 2018-04-10 | 201.0 ppb |
| 2018-04-10 | 458.0 ppb |
| 2018-04-10 | 526.0 ppb |
| 2018-04-10 | 376.0 ppb |
| 2018-04-10 | 555.0 ppb |
| 2018-05-08 | 109.0 ppb |
| 2018-05-08 | 145.0 ppb |
| 2018-05-08 | 35.0 ppb |
| 2018-05-08 | 26.0 ppb |
| 2018-05-08 | 166.0 ppb |
| 2018-05-08 | 147.0 ppb |
| 2018-05-08 | 399.0 ppb |
| 2018-05-08 | ND |
| 2018-05-08 | 470.0 ppb |
| 2018-05-08 | 312.0 ppb |
| 2018-05-08 | 466.0 ppb |
| 2018-06-19 | 171.0 ppb |
| 2018-06-19 | 188.0 ppb |
| 2018-06-19 | ND |
| 2018-06-19 | ND |
| 2018-06-19 | 282.0 ppb |
| 2018-06-19 | 236.0 ppb |
| 2018-06-19 | 292.0 ppb |
| 2018-06-19 | 484.0 ppb |
| 2018-06-19 | 455.0 ppb |
| 2018-06-19 | 627.0 ppb |
| 2018-07-10 | 442.0 ppb |
| 2018-07-10 | 165.0 ppb |
| 2018-07-10 | 80.8 ppb |
| 2018-07-10 | 71.0 ppb |
| 2018-07-10 | 837.0 ppb |
| 2018-07-10 | 418.0 ppb |
| 2018-07-10 | 433.0 ppb |
| 2018-07-10 | 486.0 ppb |
| 2018-07-10 | 639.0 ppb |
| 2018-07-10 | 511.0 ppb |
| 2018-08-14 | 388.0 ppb |
| 2018-08-14 | 356.0 ppb |
| 2018-08-14 | 40.0 ppb |
| 2018-08-14 | 21.0 ppb |
| 2018-08-14 | 578.0 ppb |
| 2018-08-14 | 485.0 ppb |
| 2018-08-14 | 281.0 ppb |
| 2018-08-14 | 429.0 ppb |
| 2018-08-14 | 579.0 ppb |
| 2018-08-14 | 471.0 ppb |
| 2018-09-11 | 307.0 ppb |
| 2018-09-11 | 187.0 ppb |
| 2018-09-11 | 53.0 ppb |
| 2018-09-11 | 14.0 ppb |
| 2018-09-11 | 570.0 ppb |
| 2018-09-11 | 366.0 ppb |
| 2018-09-11 | 416.0 ppb |
| 2018-09-11 | 427.0 ppb |
| 2018-09-11 | 674.0 ppb |
| 2018-09-11 | 424.0 ppb |
| 2018-10-09 | 98.0 ppb |
| 2018-10-09 | 237.0 ppb |
| 2018-10-09 | 178.0 ppb |
| 2018-10-09 | 45.0 ppb |
| 2018-10-09 | 147.0 ppb |
| 2018-10-09 | 222.0 ppb |
| 2018-10-09 | 419.0 ppb |
| 2018-10-09 | 477.0 ppb |
| 2018-10-09 | 465.0 ppb |
| 2018-10-09 | 493.0 ppb |
| 2018-11-14 | 467.0 ppb |
| 2018-11-14 | 269.0 ppb |
| 2018-11-14 | 78.0 ppb |
| 2018-11-14 | 526.0 ppb |
| 2018-11-14 | 270.0 ppb |
| 2018-11-14 | 419.0 ppb |
| 2018-11-14 | 472.0 ppb |
| 2018-11-14 | 571.0 ppb |
| 2018-11-14 | 543.0 ppb |
| 2018-12-11 | 235.0 ppb |
| 2018-12-11 | 166.0 ppb |
| 2018-12-11 | 100.0 ppb |
| 2018-12-11 | 415.0 ppb |
| 2018-12-11 | 301.0 ppb |
| 2018-12-11 | 391.0 ppb |
| 2018-12-11 | 490.0 ppb |
| 2018-12-11 | 636.0 ppb |
| 2018-12-11 | 522.0 ppb |
| 2019-01-15 | 132.0 ppb |
| 2019-01-15 | 180.0 ppb |
| 2019-01-15 | 43.0 ppb |
| 2019-01-15 | 194.0 ppb |
| 2019-01-15 | 194.0 ppb |
| 2019-01-15 | 318.0 ppb |
| 2019-01-15 | 393.0 ppb |
| 2019-01-15 | 332.0 ppb |
| 2019-01-15 | 380.0 ppb |
| 2019-02-11 | 116.0 ppb |
| 2019-02-11 | 138.0 ppb |
| 2019-02-11 | 55.0 ppb |
| 2019-02-11 | 162.0 ppb |
| 2019-02-11 | 193.0 ppb |
| 2019-02-11 | 340.0 ppb |
| 2019-02-11 | 489.0 ppb |
| 2019-02-11 | 303.0 ppb |
| 2019-02-11 | 456.0 ppb |
| 2019-03-12 | 454.0 ppb |
| 2019-03-12 | 316.0 ppb |
| 2019-03-12 | 74.0 ppb |
| 2019-03-12 | 522.0 ppb |
| 2019-03-12 | 417.0 ppb |
| 2019-03-12 | 324.0 ppb |
| 2019-03-12 | 419.0 ppb |
| 2019-03-12 | 811.0 ppb |
| 2019-03-12 | 441.0 ppb |
| 2019-04-09 | 444.0 ppb |
| 2019-04-09 | 280.0 ppb |
| 2019-04-09 | 99.0 ppb |
| 2019-04-09 | 907.0 ppb |
| 2019-04-09 | 541.0 ppb |
| 2019-04-09 | 364.0 ppb |
| 2019-04-09 | 474.0 ppb |
| 2019-04-09 | 809.0 ppb |
| 2019-04-09 | 427.0 ppb |
| 2019-05-14 | 766.0 ppb |
| 2019-05-14 | 551.0 ppb |
| 2019-05-14 | 24.0 ppb |
| 2019-05-14 | 954.0 ppb |
| 2019-05-14 | 707.0 ppb |
| 2019-05-14 | 328.0 ppb |
| 2019-05-14 | 473.0 ppb |
| 2019-05-14 | 1,140.0 ppb |
| 2019-05-14 | 432.0 ppb |
| 2019-06-11 | 597.0 ppb |
| 2019-06-11 | 546.0 ppb |
| 2019-06-11 | 60.0 ppb |
| 2019-06-11 | 59.0 ppb |
| 2019-06-11 | 694.0 ppb |
| 2019-06-11 | 791.0 ppb |
| 2019-06-11 | 381.0 ppb |
| 2019-06-11 | 412.0 ppb |
| 2019-06-11 | 1,000.0 ppb |
| 2019-06-11 | 423.0 ppb |
| 2019-07-09 | 503.0 ppb |
| 2019-07-09 | 388.0 ppb |
| 2019-07-09 | 63.0 ppb |
| 2019-07-09 | 478.0 ppb |
| 2019-07-09 | 543.0 ppb |
| 2019-07-09 | 573.0 ppb |
| 2019-07-09 | 364.0 ppb |
| 2019-07-09 | ND |
| 2019-07-09 | 470.0 ppb |
| 2019-07-09 | 498.0 ppb |
| 2019-07-09 | 684.0 ppb |
| 2019-07-09 | 512.0 ppb |
| 2019-08-20 | 197.0 ppb |
| 2019-08-20 | 256.0 ppb |
| 2019-08-20 | 153.0 ppb |
| 2019-08-20 | 556.0 ppb |
| 2019-08-20 | 333.0 ppb |
| 2019-08-20 | 405.0 ppb |
| 2019-08-20 | 425.0 ppb |
| 2019-08-20 | 485.0 ppb |
| 2019-08-20 | 483.0 ppb |
| 2019-09-10 | 316.0 ppb |
| 2019-09-10 | 176.0 ppb |
| 2019-09-10 | 47.0 ppb |
| 2019-09-10 | 443.0 ppb |
| 2019-09-10 | 309.0 ppb |
| 2019-09-10 | 370.0 ppb |
| 2019-09-10 | 402.0 ppb |
| 2019-09-10 | 512.0 ppb |
| 2019-09-10 | 438.0 ppb |
| 2019-10-15 | 205.0 ppb |
| 2019-10-15 | 124.0 ppb |
| 2019-10-15 | 46.0 ppb |
| 2019-10-15 | 586.0 ppb |
| 2019-10-15 | 314.0 ppb |
| 2019-10-15 | 292.0 ppb |
| 2019-10-15 | 385.0 ppb |
| 2019-10-15 | 513.0 ppb |
| 2019-10-15 | 441.0 ppb |
| 2019-11-12 | 443.0 ppb |
| 2019-11-12 | 278.0 ppb |
| 2019-11-12 | 37.0 ppb |
| 2019-11-12 | 723.0 ppb |
| 2019-11-12 | 334.0 ppb |
| 2019-11-12 | 319.0 ppb |
| 2019-11-12 | 422.0 ppb |
| 2019-11-12 | 574.0 ppb |
| 2019-11-12 | 453.0 ppb |
| 2019-12-10 | 225.0 ppb |
| 2019-12-10 | 132.0 ppb |
| 2019-12-10 | 32.5 ppb |
| 2019-12-10 | 514.0 ppb |
| 2019-12-10 | 306.0 ppb |
| 2019-12-10 | 353.0 ppb |
| 2019-12-10 | 462.0 ppb |
| 2019-12-10 | 640.0 ppb |
| 2019-12-10 | 496.0 ppb |