Dibromochloromethane
U.S. Navy San Clemente Island
Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
634
Samples
0
Samples exceeding legal limit (MCL)
601
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 6.62 ppb | 250 | 232 | ND - 24.0 ppb |
| 2015 | 6.86 ppb | 120 | 115 | ND - 34.0 ppb |
| 2016 | 8.10 ppb | 79 | 79 | 1.20 ppb - 30.0 ppb |
| 2017 | 16.2 ppb | 65 | 65 | 2.00 ppb - 53.0 ppb |
| 2018 | 5.74 ppb | 60 | 55 | ND - 16.0 ppb |
| 2019 | 4.61 ppb | 60 | 55 | ND - 20.0 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-22 | 2168-900-1010 | 9.50 ppb |
| 2014-01-22 | 2168-901-0645 | 10.00 ppb |
| 2014-01-22 | 2168-902-0825 | 13.0 ppb |
| 2014-01-22 | 2168-903-0730 | 14.0 ppb |
| 2014-01-22 | 2168-904-0925 | 3.10 ppb |
| 2014-02-12 | 2168-900-0915 | 7.10 ppb |
| 2014-02-12 | 2168-901-0855 | 2.80 ppb |
| 2014-02-12 | 2168-902-1010 | 6.20 ppb |
| 2014-02-12 | 2168-903-0940 | 8.70 ppb |
| 2014-02-12 | 2168-904-0820 | 1.40 ppb |
| 2014-03-05 | 2168-902-0942 | 5.20 ppb |
| 2014-03-05 | 2168-902-1020 | 11.0 ppb |
| 2014-03-06 | 2168-902-0943 | 3.60 ppb |
| 2014-03-08 | 2168-902-1555 | 12.0 ppb |
| 2014-03-08 | 2168-902-1635 | 5.30 ppb |
| 2014-03-12 | 2168-900-1120 | 4.80 ppb |
| 2014-03-12 | 2168-901-0955 | 3.70 ppb |
| 2014-03-12 | 2168-902-1100 | 4.70 ppb |
| 2014-03-12 | 2168-903-1030 | 9.60 ppb |
| 2014-03-12 | 2168-904-0930 | 3.60 ppb |
| 2014-03-18 | 2168-902-1135 | ND |
| 2014-03-18 | 2168-902-1200 | 14.0 ppb |
| 2014-03-24 | 2168-902-1035 | 1.20 ppb |
| 2014-03-24 | 2168-902-1055 | 12.0 ppb |
| 2014-03-31 | 2168-902-1050 | ND |
| 2014-03-31 | 2168-902-1128 | 14.0 ppb |
| 2014-04-06 | 2168-902-1420 | ND |
| 2014-04-06 | 2168-902-1450 | 22.0 ppb |
| 2014-04-08 | 2168-900-1505 | 7.10 ppb |
| 2014-04-08 | 2168-901-1445 | 10.00 ppb |
| 2014-04-08 | 2168-902-1605 | 8.40 ppb |
| 2014-04-08 | 2168-903-1530 | 7.90 ppb |
| 2014-04-09 | 2168-904-1110 | 4.00 ppb |
| 2014-04-14 | 2168-902-1625 | ND |
| 2014-04-14 | 2168-902-1650 | 17.0 ppb |
| 2014-04-18 | 2168-902-0845 | 2.90 ppb |
| 2014-04-18 | 2168-902-1130 | 12.0 ppb |
| 2014-04-20 | 2168-902-1005 | 3.20 ppb |
| 2014-04-21 | 2168-902-0830 | ND |
| 2014-04-21 | 2168-902-0910 | 21.0 ppb |
| 2014-04-22 | 2168-902-0820 | 3.10 ppb |
| 2014-04-24 | 2168-902-1305 | 1.50 ppb |
| 2014-04-25 | 2168-902-1153 | 1.50 ppb |
| 2014-04-25 | 2168-902-1530 | 8.10 ppb |
| 2014-04-27 | 2168-902-0715 | 1.70 ppb |
| 2014-04-28 | 2168-902-0718 | ND |
| 2014-04-28 | 2168-902-0815 | 18.0 ppb |
| 2014-04-28 | 2168-902-0900 | 2.20 ppb |
| 2014-04-30 | 2168-902-0740 | 2.10 ppb |
| 2014-04-30 | 2168-902-0817 | 16.0 ppb |
| 2014-05-01 | 2168-902-1545 | 2.00 ppb |
| 2014-05-02 | 2168-902-0905 | 1.90 ppb |
| 2014-05-02 | 2168-902-1120 | 3.30 ppb |
| 2014-05-03 | 2168-902-0810 | 1.50 ppb |
| 2014-05-03 | 2168-902-0855 | 20.0 ppb |
| 2014-05-04 | 2168-902-0730 | 3.10 ppb |
| 2014-05-06 | 2168-902-0815 | 1.90 ppb |
| 2014-05-08 | 2168-902-0835 | ND |
| 2014-05-08 | 2168-902-0919 | 11.0 ppb |
| 2014-05-08 | 2168-902-0941 | 1.50 ppb |
| 2014-05-10 | 2168-902-1039 | 1.10 ppb |
| 2014-05-10 | 2168-902-1349 | 5.10 ppb |
| 2014-05-13 | 2168-902-1130 | 2.40 ppb |
| 2014-05-14 | 2168-900-1000 | 5.80 ppb |
| 2014-05-14 | 2168-901-0655 | 11.0 ppb |
| 2014-05-14 | 2168-902-1020 | 4.30 ppb |
| 2014-05-14 | 2168-903-0740 | 14.0 ppb |
| 2014-05-14 | 2168-904-0845 | 4.70 ppb |
| 2014-05-15 | 2168-902-1515 | 2.20 ppb |
| 2014-05-16 | 2168-902-0715 | 14.0 ppb |
| 2014-05-17 | 2168-902-1330 | 6.40 ppb |
| 2014-05-20 | 2168-902-0945 | 7.90 ppb |
| 2014-05-20 | 2168-902-1005 | 7.10 ppb |
| 2014-05-20 | 2168-902-1025 | 16.0 ppb |
| 2014-05-23 | 2168-902-0735 | 1.10 ppb |
| 2014-05-23 | 2168-902-1118 | 12.0 ppb |
| 2014-05-24 | 2168-902-1525 | 5.10 ppb |
| 2014-05-27 | 2168-902-0950 | ND |
| 2014-05-27 | 2168-902-1105 | 1.70 ppb |
| 2014-05-27 | 2168-902-1256 | 24.0 ppb |
| 2014-05-30 | 2168-902-0820 | 3.20 ppb |
| 2014-05-30 | 2168-902-1005 | 4.80 ppb |
| 2014-05-31 | 2168-902-1435 | 4.20 ppb |
| 2014-06-03 | 2168-902-0855 | 4.70 ppb |
| 2014-06-03 | 2168-902-0935 | 4.90 ppb |
| 2014-06-03 | 2168-902-1040 | ND |
| 2014-06-06 | 2168-902-0930 | 1.10 ppb |
| 2014-06-06 | 2168-902-1130 | 17.0 ppb |
| 2014-06-07 | 2168-902-0755 | 6.60 ppb |
| 2014-06-10 | 2168-902-1340 | 5.40 ppb |
| 2014-06-10 | 2168-902-1415 | 1.40 ppb |
| 2014-06-10 | 2168-902-1425 | 18.0 ppb |
| 2014-06-11 | 2168-900-0700 | 10.00 ppb |
| 2014-06-11 | 2168-901-0620 | 15.0 ppb |
| 2014-06-11 | 2168-902-0945 | 6.40 ppb |
| 2014-06-11 | 2168-903-0905 | 15.0 ppb |
| 2014-06-11 | 2168-904-0745 | 5.00 ppb |
| 2014-06-14 | 2168-902-0855 | 2.60 ppb |
| 2014-06-14 | 2168-902-0925 | 4.50 ppb |
| 2014-06-14 | 2168-902-1045 | 9.10 ppb |
| 2014-06-17 | 2168-902-0955 | 3.60 ppb |
| 2014-06-17 | 2168-902-1030 | 7.80 ppb |
| 2014-06-17 | 2168-902-1145 | 4.00 ppb |
| 2014-06-20 | 2168-902-1025 | 3.80 ppb |
| 2014-06-20 | 2168-902-1325 | 12.0 ppb |
| 2014-06-21 | 2168-902-1040 | 7.40 ppb |
| 2014-06-24 | 2168-902-0857 | 6.80 ppb |
| 2014-06-24 | 2168-902-0921 | 3.00 ppb |
| 2014-06-24 | 2168-902-1001 | 15.0 ppb |
| 2014-06-27 | 2168-902-0845 | 3.10 ppb |
| 2014-06-27 | 2168-902-1025 | 11.0 ppb |
| 2014-06-28 | 2168-902-1005 | 7.00 ppb |
| 2014-07-01 | 2168-902-0840 | 6.10 ppb |
| 2014-07-01 | 2168-902-0910 | 10.00 ppb |
| 2014-07-01 | 2168-902-0950 | 8.40 ppb |
| 2014-07-04 | 2168-902-1100 | 4.40 ppb |
| 2014-07-04 | 2168-902-1230 | 10.00 ppb |
| 2014-07-05 | 2168-902-1130 | 7.20 ppb |
| 2014-07-07 | 2168-902-1535 | 1.50 ppb |
| 2014-07-07 | 2168-902-1600 | 20.0 ppb |
| 2014-07-08 | 2168-902-0945 | 9.50 ppb |
| 2014-07-08 | 2168-902-1625 | 7.00 ppb |
| 2014-07-15 | 2168-900-1515 | 7.60 ppb |
| 2014-07-15 | 2168-901-0740 | 16.0 ppb |
| 2014-07-15 | 2168-902-1005 | 2.70 ppb |
| 2014-07-15 | 2168-902-1025 | 18.0 ppb |
| 2014-07-15 | 2168-902-1115 | 10.00 ppb |
| 2014-07-15 | 2168-902-1435 | 5.90 ppb |
| 2014-07-15 | 2168-903-1150 | 13.0 ppb |
| 2014-07-16 | 2168-904-1045 | 7.10 ppb |
| 2014-07-19 | 2168-902-0715 | 2.40 ppb |
| 2014-07-19 | 2168-902-0801 | 8.20 ppb |
| 2014-07-19 | 2168-902-1600 | 14.0 ppb |
| 2014-07-21 | 2168-902-1352 | ND |
| 2014-07-21 | 2168-902-1421 | 24.0 ppb |
| 2014-07-22 | 2168-902-0900 | 8.60 ppb |
| 2014-07-22 | 2168-902-0955 | 2.40 ppb |
| 2014-07-25 | 2168-902-1400 | 2.50 ppb |
| 2014-07-25 | 2168-902-1625 | 5.50 ppb |
| 2014-07-26 | 2168-902-1500 | 8.20 ppb |
| 2014-07-28 | 2168-902-1045 | 9.30 ppb |
| 2014-07-28 | 2168-902-1230 | 8.90 ppb |
| 2014-07-28 | 2168-902-1600 | 9.20 ppb |
| 2014-07-28 | 2168-902-1630 | 7.30 ppb |
| 2014-08-01 | 2168-902-0900 | 2.10 ppb |
| 2014-08-01 | 2168-902-1330 | 4.70 ppb |
| 2014-08-02 | 2168-902-1100 | 8.10 ppb |
| 2014-08-05 | 2168-902-0810 | 3.40 ppb |
| 2014-08-05 | 2168-902-0840 | ND |
| 2014-08-05 | 2168-902-1005 | 7.10 ppb |
| 2014-08-05 | 2168-902-1035 | 20.0 ppb |
| 2014-08-08 | 2168-902-1020 | 1.90 ppb |
| 2014-08-08 | 2168-902-1420 | 4.60 ppb |
| 2014-08-09 | 2168-902-1255 | 5.60 ppb |
| 2014-08-11 | 2168-902-1525 | 7.30 ppb |
| 2014-08-11 | 2168-902-1600 | 11.0 ppb |
| 2014-08-11 | 2168-902-1620 | 3.30 ppb |
| 2014-08-12 | 2168-900-1510 | 9.40 ppb |
| 2014-08-12 | 2168-901-1540 | 9.40 ppb |
| 2014-08-12 | 2168-902-0755 | 2.80 ppb |
| 2014-08-12 | 2168-902-1450 | 8.90 ppb |
| 2014-08-12 | 2168-903-1415 | 11.0 ppb |
| 2014-08-13 | 2168-904-0945 | 7.40 ppb |
| 2014-08-15 | 2168-901-0833 | 2.20 ppb |
| 2014-08-15 | 2168-901-1033 | 14.0 ppb |
| 2014-08-16 | 2168-900-0731 | 5.20 ppb |
| 2014-08-18 | 2168-902-0708 | ND |
| 2014-08-18 | 2168-902-1100 | 19.0 ppb |
| 2014-08-19 | 2168-900-0706 | 5.30 ppb |
| 2014-08-19 | 2168-903-0740 | 3.90 ppb |
| 2014-08-22 | 2168-901-1100 | 2.50 ppb |
| 2014-08-22 | 2168-901-1345 | 6.60 ppb |
| 2014-08-23 | 2168-900-1000 | 5.50 ppb |
| 2014-08-26 | 2168-900-1040 | 5.50 ppb |
| 2014-08-26 | 2168-902-0935 | 1.60 ppb |
| 2014-08-26 | 2168-902-1010 | 20.0 ppb |
| 2014-08-26 | 2168-903-1245 | 1.50 ppb |
| 2014-08-30 | 2168-900-1155 | 6.10 ppb |
| 2014-08-30 | 2168-901-1122 | 1.30 ppb |
| 2014-08-30 | 2168-901-1715 | 9.70 ppb |
| 2014-09-01 | 2168-902-1548 | 1.10 ppb |
| 2014-09-01 | 2168-902-1651 | 21.0 ppb |
| 2014-09-02 | 2168-900-0925 | 5.90 ppb |
| 2014-09-02 | 2168-903-1006 | 1.20 ppb |
| 2014-09-05 | 2168-901-0700 | 1.60 ppb |
| 2014-09-05 | 2168-901-0845 | 6.10 ppb |
| 2014-09-06 | 2168-900-1500 | 5.90 ppb |
| 2014-09-08 | 2168-900-1000 | 11.0 ppb |
| 2014-09-08 | 2168-901-1025 | 13.0 ppb |
| 2014-09-08 | 2168-902-0840 | 16.0 ppb |
| 2014-09-08 | 2168-903-0920 | 13.0 ppb |
| 2014-09-09 | 2168-900-0830 | 6.60 ppb |
| 2014-09-09 | 2168-902-0925 | 4.80 ppb |
| 2014-09-09 | 2168-902-0950 | 12.0 ppb |
| 2014-09-09 | 2168-903-0750 | 4.80 ppb |
| 2014-09-10 | 2168-904-0950 | 3.40 ppb |
| 2014-09-12 | 2168-901-1200 | 3.40 ppb |
| 2014-09-12 | 2168-901-1424 | 1.30 ppb |
| 2014-09-13 | 2168-900-0800 | 6.20 ppb |
| 2014-09-13 | 2168-902-0702 | ND |
| 2014-09-13 | 2168-902-1010 | 18.0 ppb |
| 2014-09-15 | 2168-900-1549 | 6.20 ppb |
| 2014-09-15 | 2168-903-1534 | 7.30 ppb |
| 2014-09-19 | 2168-901-1415 | ND |
| 2014-09-19 | 2168-901-1525 | 3.60 ppb |
| 2014-09-20 | 2168-900-1130 | 5.10 ppb |
| 2014-09-22 | 2168-900-1525 | 4.70 ppb |
| 2014-09-22 | 2168-903-1500 | 4.70 ppb |
| 2014-09-23 | 2168-902-1025 | 3.30 ppb |
| 2014-09-23 | 2168-902-1055 | 8.40 ppb |
| 2014-09-26 | 2168-901-0840 | ND |
| 2014-09-26 | 2168-901-1330 | 4.00 ppb |
| 2014-09-27 | 2168-900-1135 | 4.70 ppb |
| 2014-09-30 | 2168-900-0945 | 2.30 ppb |
| 2014-09-30 | 2168-900-1200 | 4.50 ppb |
| 2014-09-30 | 2168-902-0830 | ND |
| 2014-09-30 | 2168-902-0910 | 14.0 ppb |
| 2014-10-07 | 2168-900-0755 | 3.80 ppb |
| 2014-10-07 | 2168-901-0715 | 1.60 ppb |
| 2014-10-07 | 2168-901-0940 | 4.80 ppb |
| 2014-10-07 | 2168-902-0825 | 4.30 ppb |
| 2014-10-07 | 2168-902-0850 | 13.0 ppb |
| 2014-10-07 | 2168-903-0915 | 7.60 ppb |
| 2014-10-21 | 2168-900-1320 | 5.10 ppb |
| 2014-10-21 | 2168-901-1350 | 4.60 ppb |
| 2014-10-21 | 2168-902-1015 | 4.60 ppb |
| 2014-10-21 | 2168-903-1245 | 3.70 ppb |
| 2014-10-22 | 2168-904-1010 | 3.40 ppb |
| 2014-11-02 | 2168-901-0905 | ND |
| 2014-11-02 | 2168-901-1045 | 6.50 ppb |
| 2014-11-03 | 2168-900-1010 | 3.70 ppb |
| 2014-11-03 | 2168-902-1345 | ND |
| 2014-11-03 | 2168-902-1410 | 12.0 ppb |
| 2014-11-03 | 2168-903-0945 | 1.50 ppb |
| 2014-11-13 | 2168-900-1005 | 5.10 ppb |
| 2014-11-13 | 2168-901-0905 | 2.70 ppb |
| 2014-11-13 | 2168-902-1145 | 3.70 ppb |
| 2014-11-13 | 2168-903-1240 | 1.40 ppb |
| 2014-11-13 | 2168-904-0935 | 2.70 ppb |
| 2014-12-04 | 2168-900-0830 | 3.40 ppb |
| 2014-12-04 | 2168-901-1030 | 1.10 ppb |
| 2014-12-04 | 2168-902-0900 | 1.40 ppb |
| 2014-12-04 | 2168-903-0945 | 3.20 ppb |
| 2014-12-06 | 2168-901-0800 | 1.60 ppb |
| 2014-12-09 | 2168-902-0845 | 9.00 ppb |
| 2014-12-16 | 2168-900-0955 | 4.80 ppb |
| 2014-12-16 | 2168-901-0830 | 18.0 ppb |
| 2014-12-16 | 2168-902-0940 | 1.90 ppb |
| 2014-12-16 | 2168-903-0910 | 5.40 ppb |
| 2014-12-17 | 2168-904-1010 | 2.10 ppb |
| 2015-01-06 | 2168-900-1125 | 3.80 ppb |
| 2015-01-06 | 2168-902-0930 | ND |
| 2015-01-06 | 2168-902-0955 | 12.0 ppb |
| 2015-01-06 | 2168-903-0900 | ND |
| 2015-01-09 | 2168-901-0810 | 1.10 ppb |
| 2015-01-09 | 2168-901-0830 | 2.90 ppb |
| 2015-01-14 | 2168-902-1005 | 4.10 ppb |
| 2015-01-14 | 2168-904-0830 | 2.40 ppb |
| 2015-01-15 | 2168-900-1015 | 4.70 ppb |
| 2015-01-15 | 2168-901-1035 | 1.70 ppb |
| 2015-01-15 | 2168-903-0830 | 4.40 ppb |
| 2015-02-06 | 2168-901-0900 | 3.40 ppb |
| 2015-02-06 | 2168-901-0925 | ND |
| 2015-02-10 | 2168-900-0845 | 3.20 ppb |
| 2015-02-10 | 2168-900-1050 | 3.40 ppb |
| 2015-02-10 | 2168-901-0910 | 2.20 ppb |
| 2015-02-10 | 2168-902-0830 | 3.30 ppb |
| 2015-02-10 | 2168-902-1140 | 3.40 ppb |
| 2015-02-10 | 2168-903-0810 | 3.30 ppb |
| 2015-02-10 | 2168-903-0900 | 2.20 ppb |
| 2015-02-11 | 2168-904-0845 | 2.00 ppb |
| 2015-03-10 | 2168-900-0955 | 4.40 ppb |
| 2015-03-10 | 2168-901-1015 | 4.20 ppb |
| 2015-03-10 | 2168-902-1105 | 5.20 ppb |
| 2015-03-10 | 2168-903-1045 | 4.50 ppb |
| 2015-03-10 | 2168-904-0935 | 4.30 ppb |
| 2015-04-10 | 2168-901-0625 | ND |
| 2015-04-10 | 2168-901-0830 | 9.90 ppb |
| 2015-04-11 | 2168-900-0820 | 6.70 ppb |
| 2015-04-11 | 2168-903-0745 | 2.90 ppb |
| 2015-04-13 | 2168-900-0745 | 16.0 ppb |
| 2015-04-13 | 2168-901-0810 | 12.0 ppb |
| 2015-04-13 | 2168-902-0700 | 13.0 ppb |
| 2015-04-13 | 2168-902-1410 | 2.10 ppb |
| 2015-04-13 | 2168-902-1450 | 22.0 ppb |
| 2015-04-13 | 2168-903-0620 | 9.80 ppb |
| 2015-04-15 | 2168-904-0930 | 4.30 ppb |
| 2015-05-05 | 2168-900-0700 | 8.90 ppb |
| 2015-05-05 | 2168-901-0905 | 5.00 ppb |
| 2015-05-05 | 2168-901-0915 | 4.80 ppb |
| 2015-05-05 | 2168-902-0830 | 8.70 ppb |
| 2015-05-05 | 2168-902-0835 | 8.80 ppb |
| 2015-05-05 | 2168-903-0815 | 8.80 ppb |
| 2015-05-19 | 2168-900-1050 | 5.40 ppb |
| 2015-05-19 | 2168-901-1035 | 5.60 ppb |
| 2015-05-19 | 2168-902-1010 | 7.60 ppb |
| 2015-05-19 | 2168-903-0940 | 7.20 ppb |
| 2015-05-20 | 2168-904-1150 | 5.80 ppb |
| 2015-06-02 | 2168-900-1500 | 5.80 ppb |
| 2015-06-02 | 2168-901-1400 | 7.80 ppb |
| 2015-06-02 | 2168-901-1415 | 7.80 ppb |
| 2015-06-02 | 2168-902-1525 | 6.60 ppb |
| 2015-06-02 | 2168-902-1535 | 6.70 ppb |
| 2015-06-02 | 2168-903-1330 | 5.00 ppb |
| 2015-07-03 | 2168-900-1325 | 7.10 ppb |
| 2015-07-03 | 2168-901-0720 | 2.00 ppb |
| 2015-07-03 | 2168-901-1100 | 8.80 ppb |
| 2015-07-03 | 2168-903-1435 | 3.00 ppb |
| 2015-07-04 | 2168-902-1550 | 2.70 ppb |
| 2015-07-04 | 2168-902-1620 | 25.0 ppb |
| 2015-07-08 | 2168-900-1318 | 13.0 ppb |
| 2015-07-08 | 2168-901-1300 | 3.60 ppb |
| 2015-07-08 | 2168-902-1235 | 11.0 ppb |
| 2015-07-08 | 2168-903-1211 | 13.0 ppb |
| 2015-07-08 | 2168-904-1248 | 3.20 ppb |
| 2015-07-31 | 2168-901-0635 | 2.60 ppb |
| 2015-07-31 | 2168-901-0920 | 7.10 ppb |
| 2015-08-01 | 2168-900-1010 | 8.50 ppb |
| 2015-08-01 | 2168-903-1035 | 4.40 ppb |
| 2015-08-02 | 2168-902-1425 | 1.40 ppb |
| 2015-08-02 | 2168-902-1530 | 29.0 ppb |
| 2015-09-11 | 2168-901-0745 | 3.20 ppb |
| 2015-09-11 | 2168-901-1035 | 12.0 ppb |
| 2015-09-11 | 2168-903-1505 | 2.40 ppb |
| 2015-09-12 | 2168-900-1550 | 9.70 ppb |
| 2015-09-13 | 2168-902-1020 | 2.60 ppb |
| 2015-09-13 | 2168-902-1045 | 34.0 ppb |
| 2015-09-16 | 2168-900-1310 | 13.0 ppb |
| 2015-09-16 | 2168-901-1337 | 3.70 ppb |
| 2015-09-16 | 2168-902-1248 | 4.90 ppb |
| 2015-09-16 | 2168-903-1215 | 12.0 ppb |
| 2015-09-16 | 2168-904-1346 | 3.40 ppb |
| 2015-10-06 | 2168-900-0900 | 20.0 ppb |
| 2015-10-06 | 2168-901-0955 | 21.0 ppb |
| 2015-10-06 | 2168-901-1005 | 22.0 ppb |
| 2015-10-06 | 2168-902-1015 | 2.20 ppb |
| 2015-10-06 | 2168-902-1025 | 2.10 ppb |
| 2015-10-06 | 2168-903-0920 | 21.0 ppb |
| 2015-10-14 | 2168-900-1020 | 13.0 ppb |
| 2015-10-14 | 2168-901-0945 | 3.20 ppb |
| 2015-10-14 | 2168-902-1040 | 15.0 ppb |
| 2015-10-14 | 2168-903-1120 | 9.80 ppb |
| 2015-10-14 | 2168-904-0925 | 3.70 ppb |
| 2015-10-29 | 2168-900-1635 | 8.20 ppb |
| 2015-10-29 | 2168-901-1535 | 3.00 ppb |
| 2015-10-29 | 2168-901-1700 | 2.70 ppb |
| 2015-10-29 | 2168-902-1200 | 1.70 ppb |
| 2015-10-29 | 2168-902-1240 | 19.0 ppb |
| 2015-10-29 | 2168-903-0950 | 2.90 ppb |
| 2015-11-07 | 2168-900-0731 | 8.30 ppb |
| 2015-11-07 | 2168-901-0704 | 1.20 ppb |
| 2015-11-07 | 2168-901-1250 | 6.70 ppb |
| 2015-11-07 | 2168-902-0800 | 1.20 ppb |
| 2015-11-07 | 2168-902-0835 | 19.0 ppb |
| 2015-11-07 | 2168-903-1010 | 5.70 ppb |
| 2015-11-18 | 2168-900-1120 | 8.00 ppb |
| 2015-11-18 | 2168-901-1104 | 2.60 ppb |
| 2015-11-18 | 2168-902-1140 | 3.50 ppb |
| 2015-11-18 | 2168-903-1207 | 4.50 ppb |
| 2015-11-18 | 2168-904-1055 | 2.90 ppb |
| 2015-12-16 | 2168-900-1140 | 3.10 ppb |
| 2015-12-16 | 2168-901-1112 | 2.90 ppb |
| 2015-12-16 | 2168-902-1200 | 4.80 ppb |
| 2015-12-16 | 2168-903-1230 | 6.90 ppb |
| 2015-12-18 | 2168-900-0740 | 4.30 ppb |
| 2015-12-18 | 2168-901-0700 | 1.80 ppb |
| 2015-12-18 | 2168-901-0935 | 5.50 ppb |
| 2015-12-18 | 2168-903-0810 | ND |
| 2015-12-21 | 2168-902-1400 | 1.10 ppb |
| 2015-12-21 | 2168-902-1435 | 11.0 ppb |
| 2016-01-13 | 2168-900-1100 | 3.90 ppb |
| 2016-01-13 | 2168-901-1042 | 5.40 ppb |
| 2016-01-13 | 2168-902-1120 | 3.10 ppb |
| 2016-01-13 | 2168-903-1155 | 4.30 ppb |
| 2016-01-14 | 2168-904-0900 | 2.20 ppb |
| 2016-01-15 | 2168-900-0810 | 3.40 ppb |
| 2016-01-15 | 2168-901-0730 | 2.00 ppb |
| 2016-01-15 | 2168-901-1000 | 2.60 ppb |
| 2016-01-15 | 2168-903-0915 | 1.30 ppb |
| 2016-01-17 | 2168-902-1110 | 9.90 ppb |
| 2016-01-17 | 2168-902-1130 | 9.60 ppb |
| 2016-02-04 | 2168-902-1630 | 3.10 ppb |
| 2016-02-04 | 2168-903-1300 | 2.90 ppb |
| 2016-02-05 | 2168-900-0940 | 6.30 ppb |
| 2016-02-05 | 2168-901-1010 | 1.80 ppb |
| 2016-02-10 | 2168-904-0900 | 2.40 ppb |
| 2016-02-12 | 2168-900-0900 | 4.30 ppb |
| 2016-02-12 | 2168-901-0825 | 2.10 ppb |
| 2016-02-12 | 2168-901-1010 | 6.70 ppb |
| 2016-02-12 | 2168-903-0940 | 1.20 ppb |
| 2016-02-14 | 2168-902-0745 | 1.20 ppb |
| 2016-02-14 | 2168-902-0810 | 16.0 ppb |
| 2016-03-05 | 2168-900-1515 | 8.90 ppb |
| 2016-03-05 | 2168-901-1645 | 9.70 ppb |
| 2016-03-05 | 2168-902-1430 | 6.80 ppb |
| 2016-03-05 | 2168-903-0920 | 3.70 ppb |
| 2016-03-10 | 2168-904-0900 | 6.40 ppb |
| 2016-03-12 | 2168-900-0845 | 5.90 ppb |
| 2016-03-12 | 2168-901-0715 | 3.10 ppb |
| 2016-03-12 | 2168-901-1040 | 9.70 ppb |
| 2016-03-12 | 2168-903-0930 | 1.70 ppb |
| 2016-03-14 | 2168-902-1425 | 1.50 ppb |
| 2016-03-14 | 2168-902-1445 | 15.0 ppb |
| 2016-04-01 | 2168-900-1250 | 8.90 ppb |
| 2016-04-01 | 2168-901-1430 | 4.00 ppb |
| 2016-04-01 | 2168-902-1220 | 6.70 ppb |
| 2016-04-01 | 2168-903-1115 | 7.50 ppb |
| 2016-04-07 | 2168-904-1015 | 4.00 ppb |
| 2016-04-08 | 2168-900-1350 | 7.30 ppb |
| 2016-04-08 | 2168-901-1300 | 10.00 ppb |
| 2016-04-08 | 2168-901-1325 | 6.30 ppb |
| 2016-04-08 | 2168-902-1430 | 2.50 ppb |
| 2016-04-08 | 2168-902-1605 | 19.0 ppb |
| 2016-04-08 | 2168-903-1525 | 2.80 ppb |
| 2016-05-11 | 2168-904-1125 | 1.70 ppb |
| 2016-05-12 | 2168-900-1535 | 8.40 ppb |
| 2016-05-12 | 2168-901-1555 | 2.50 ppb |
| 2016-05-12 | 2168-902-1450 | 6.10 ppb |
| 2016-05-12 | 2168-903-1240 | 10.00 ppb |
| 2016-06-03 | 2168-902-1645 | 6.20 ppb |
| 2016-06-03 | 2168-903-1600 | 12.0 ppb |
| 2016-06-08 | 2168-900-0805 | 9.50 ppb |
| 2016-06-08 | 2168-901-0845 | 7.20 ppb |
| 2016-06-08 | 2168-904-1230 | 3.90 ppb |
| 2016-07-05 | 2168-900-0840 | 18.0 ppb |
| 2016-07-05 | 2168-901-1005 | 9.00 ppb |
| 2016-07-05 | 2168-902-0820 | 30.0 ppb |
| 2016-07-05 | 2168-903-0920 | 21.0 ppb |
| 2016-07-06 | 2168-904-0915 | 3.00 ppb |
| 2016-08-22 | 2168-900-1010 | 15.0 ppb |
| 2016-08-22 | 2168-901-1030 | 6.50 ppb |
| 2016-08-22 | 2168-902-0950 | 22.0 ppb |
| 2016-08-22 | 2168-903-0900 | 8.20 ppb |
| 2016-08-24 | 2168-904-0910 | 6.70 ppb |
| 2016-09-01 | 2168-900-1105 | 14.0 ppb |
| 2016-09-01 | 2168-901-1125 | 9.20 ppb |
| 2016-09-01 | 2168-902-1045 | 14.0 ppb |
| 2016-09-01 | 2168-903-0915 | 6.40 ppb |
| 2016-09-07 | 2168-904-0805 | 5.40 ppb |
| 2016-10-23 | 2168-900-0920 | 6.60 ppb |
| 2016-10-23 | 2168-901-1030 | 5.50 ppb |
| 2016-10-23 | 2168-902-0757 | 9.80 ppb |
| 2016-10-23 | 2168-903-1000 | 6.50 ppb |
| 2016-10-26 | 2168-904-0930 | 6.40 ppb |
| 2016-12-05 | 2168-900-0930 | 19.0 ppb |
| 2016-12-05 | 2168-901-0840 | 19.0 ppb |
| 2016-12-05 | 2168-902-0821 | 20.0 ppb |
| 2016-12-05 | 2168-903-0800 | 18.0 ppb |
| 2016-12-07 | 2168-904-0730 | 26.0 ppb |
| 2017-01-16 | 2168-900-0745 | 8.90 ppb |
| 2017-01-16 | 2168-901-0935 | 2.00 ppb |
| 2017-01-16 | 2168-902-0710 | 8.60 ppb |
| 2017-01-16 | 2168-903-1005 | 5.80 ppb |
| 2017-01-18 | 2168-904-1030 | 4.10 ppb |
| 2017-02-04 | 2168-900-1310 | 13.0 ppb |
| 2017-02-04 | 2168-901-1215 | 8.60 ppb |
| 2017-02-04 | 2168-902-1415 | 13.0 ppb |
| 2017-02-04 | 2168-903-1500 | 8.70 ppb |
| 2017-02-08 | 2168-904-0845 | 2.20 ppb |
| 2017-03-05 | 2168-900-1435 | 13.0 ppb |
| 2017-03-05 | 2168-901-1550 | 9.60 ppb |
| 2017-03-05 | 2168-902-1200 | 19.0 ppb |
| 2017-03-05 | 2168-903-1500 | 9.40 ppb |
| 2017-03-08 | 2168-904-0805 | 8.90 ppb |
| 2017-04-02 | 2168-900-1510 | 29.0 ppb |
| 2017-04-02 | 2168-902-1430 | 35.0 ppb |
| 2017-04-03 | 2168-903-1610 | 24.0 ppb |
| 2017-04-04 | 2168-901-1145 | 35.0 ppb |
| 2017-04-05 | 2168-904-0745 | 8.10 ppb |
| 2017-05-08 | 2168-900-1315 | 49.0 ppb |
| 2017-05-08 | 2168-901-1100 | 51.0 ppb |
| 2017-05-08 | 2168-902-1020 | 50.0 ppb |
| 2017-05-08 | 2168-903-0930 | 49.0 ppb |
| 2017-05-10 | 2168-904-0830 | 53.0 ppb |
| 2017-05-24 | 2168-900-1430 | 21.0 ppb |
| 2017-05-24 | 2168-901-1405 | 21.0 ppb |
| 2017-05-24 | 2168-902-1327 | 23.0 ppb |
| 2017-05-24 | 2168-903-1300 | 7.90 ppb |
| 2017-05-24 | 2168-904-1220 | 22.0 ppb |
| 2017-06-05 | 2168-903-1504 | 21.0 ppb |
| 2017-06-06 | 2168-900-1107 | 23.0 ppb |
| 2017-06-06 | 2168-901-1308 | 17.0 ppb |
| 2017-06-06 | 2168-902-1137 | 22.0 ppb |
| 2017-06-07 | 2168-904-0740 | 14.0 ppb |
| 2017-07-03 | 2168-900-0801 | 7.40 ppb |
| 2017-07-03 | 2168-901-1217 | 27.0 ppb |
| 2017-07-03 | 2168-902-1141 | 16.0 ppb |
| 2017-07-03 | 2168-903-1100 | 7.90 ppb |
| 2017-07-06 | 2168-904-0910 | 3.50 ppb |
| 2017-08-07 | 2168-900-1300 | 21.0 ppb |
| 2017-08-07 | 2168-901-1115 | 16.0 ppb |
| 2017-08-07 | 2168-902-1330 | 12.0 ppb |
| 2017-08-07 | 2168-903-1410 | 15.0 ppb |
| 2017-08-09 | 2168-904-0900 | 12.0 ppb |
| 2017-09-04 | 2168-900-1135 | 15.0 ppb |
| 2017-09-04 | 2168-901-1150 | 15.0 ppb |
| 2017-09-04 | 2168-902-1116 | 14.0 ppb |
| 2017-09-04 | 2168-903-1000 | 16.0 ppb |
| 2017-09-06 | 2168-904-0740 | 13.0 ppb |
| 2017-10-01 | 2168-900-1005 | 9.50 ppb |
| 2017-10-01 | 2168-901-1020 | 6.50 ppb |
| 2017-10-01 | 2168-902-0940 | 9.90 ppb |
| 2017-10-01 | 2168-903-0850 | 8.80 ppb |
| 2017-10-03 | 2168-904-0910 | 16.0 ppb |
| 2017-11-03 | 2168-902-1135 | 11.0 ppb |
| 2017-11-03 | 2168-903-1045 | 9.80 ppb |
| 2017-11-04 | 2168-900-1345 | 6.50 ppb |
| 2017-11-04 | 2168-901-1410 | 3.70 ppb |
| 2017-11-08 | 2168-904-1030 | 2.30 ppb |
| 2017-12-01 | 2168-900-1015 | 21.0 ppb |
| 2017-12-01 | 2168-901-1445 | 5.30 ppb |
| 2017-12-01 | 2168-902-1300 | 14.0 ppb |
| 2017-12-01 | 2168-903-1100 | 6.60 ppb |
| 2017-12-06 | 2168-904-0805 | 3.30 ppb |
| 2018-01-08 | 2168-900-0955 | 6.10 ppb |
| 2018-01-08 | 2168-901-1015 | 5.80 ppb |
| 2018-01-08 | 2168-902-0935 | 13.0 ppb |
| 2018-01-08 | 2168-903-0720 | 16.0 ppb |
| 2018-01-11 | 2168-904-0930 | 4.40 ppb |
| 2018-02-04 | 2168-900-0920 | 14.0 ppb |
| 2018-02-04 | 2168-901-0910 | 14.0 ppb |
| 2018-02-04 | 2168-902-0830 | 14.0 ppb |
| 2018-02-04 | 2168-903-0800 | 14.0 ppb |
| 2018-02-06 | 2168-904-0810 | 2.30 ppb |
| 2018-03-06 | 2168-900-0925 | 8.70 ppb |
| 2018-03-06 | 2168-901-0745 | 11.0 ppb |
| 2018-03-06 | 2168-902-0900 | 4.10 ppb |
| 2018-03-06 | 2168-903-0825 | 6.80 ppb |
| 2018-03-07 | 2168-904-0808 | 4.00 ppb |
| 2018-04-02 | 2168-900-0930 | 8.50 ppb |
| 2018-04-02 | 2168-901-0850 | 8.70 ppb |
| 2018-04-02 | 2168-902-0815 | 9.10 ppb |
| 2018-04-02 | 2168-903-0740 | 9.50 ppb |
| 2018-04-04 | 2168-904-0900 | 10.00 ppb |
| 2018-05-03 | 2168-900-1250 | 4.60 ppb |
| 2018-05-03 | 2168-901-1520 | 5.10 ppb |
| 2018-05-03 | 2168-902-1440 | 6.20 ppb |
| 2018-05-03 | 2168-903-1355 | 14.0 ppb |
| 2018-05-09 | 2168-904-0810 | 1.40 ppb |
| 2018-06-03 | 2168-900-1100 | 2.80 ppb |
| 2018-06-03 | 2168-901-1010 | 9.30 ppb |
| 2018-06-03 | 2168-902-1120 | 5.20 ppb |
| 2018-06-03 | 2168-903-0930 | 4.30 ppb |
| 2018-06-06 | 2168-904-0810 | ND |
| 2018-07-09 | 2168-900-1630 | 4.00 ppb |
| 2018-07-09 | 2168-901-1645 | 3.10 ppb |
| 2018-07-09 | 2168-902-1550 | ND |
| 2018-07-09 | 2168-903-1515 | 9.10 ppb |
| 2018-07-11 | 2168-904-0900 | 1.50 ppb |
| 2018-08-08 | 2168-900-0730 | 3.80 ppb |
| 2018-08-08 | 2168-901-0850 | 1.10 ppb |
| 2018-08-08 | 2168-902-0750 | 6.30 ppb |
| 2018-08-08 | 2168-903-0820 | 5.90 ppb |
| 2018-08-08 | 2168-904-0900 | ND |
| 2018-09-04 | 2168-900-0940 | 3.50 ppb |
| 2018-09-04 | 2168-901-1005 | 6.50 ppb |
| 2018-09-04 | 2168-902-0910 | 2.80 ppb |
| 2018-09-04 | 2168-903-0845 | 9.30 ppb |
| 2018-09-05 | 2168-904-0730 | 1.10 ppb |
| 2018-10-02 | 2168-900-0845 | 3.80 ppb |
| 2018-10-02 | 2168-901-0915 | 3.80 ppb |
| 2018-10-02 | 2168-902-0820 | 5.60 ppb |
| 2018-10-02 | 2168-903-0725 | 3.40 ppb |
| 2018-10-03 | 2168-904-0730 | ND |
| 2018-11-05 | 2168-900-1610 | 5.20 ppb |
| 2018-11-05 | 2168-901-1550 | 7.40 ppb |
| 2018-11-05 | 2168-902-1530 | 4.50 ppb |
| 2018-11-05 | 2168-903-1455 | 3.70 ppb |
| 2018-11-07 | 2168-904-0710 | ND |
| 2018-12-01 | 2168-900-0955 | 1.40 ppb |
| 2018-12-01 | 2168-901-0930 | 3.80 ppb |
| 2018-12-01 | 2168-902-1025 | 2.50 ppb |
| 2018-12-01 | 2168-903-1400 | 2.80 ppb |
| 2018-12-05 | 2168-904-0930 | 1.30 ppb |
| 2019-01-02 | 2168-900-1515 | 3.00 ppb |
| 2019-01-02 | 2168-902-1455 | 4.10 ppb |
| 2019-01-02 | 2168-903-1415 | 1.90 ppb |
| 2019-01-03 | 2168-901-0655 | 2.00 ppb |
| 2019-01-03 | 2168-904-0730 | 1.70 ppb |
| 2019-02-07 | 2168-904-1330 | ND |
| 2019-02-12 | 2168-900-0855 | 1.50 ppb |
| 2019-02-12 | 2168-901-0910 | 1.80 ppb |
| 2019-02-12 | 2168-902-0830 | 1.70 ppb |
| 2019-02-12 | 2168-903-0715 | 2.10 ppb |
| 2019-03-05 | 2168-900-0710 | 2.60 ppb |
| 2019-03-05 | 2168-901-0730 | 2.50 ppb |
| 2019-03-05 | 2168-902-0650 | 1.10 ppb |
| 2019-03-05 | 2168-903-0620 | 2.40 ppb |
| 2019-03-06 | 2168-904-0720 | ND |
| 2019-04-08 | 2168-900-0830 | 3.10 ppb |
| 2019-04-08 | 2168-901-0730 | 3.30 ppb |
| 2019-04-08 | 2168-902-0715 | ND |
| 2019-04-08 | 2168-903-0755 | 1.60 ppb |
| 2019-04-11 | 2168-904-0725 | 4.40 ppb |
| 2019-05-14 | 2168-900-0815 | 9.60 ppb |
| 2019-05-14 | 2168-901-0845 | 7.30 ppb |
| 2019-05-14 | 2168-902-0755 | 1.60 ppb |
| 2019-05-14 | 2168-903-0715 | 7.60 ppb |
| 2019-05-15 | 2168-904-0720 | 1.60 ppb |
| 2019-06-03 | 2168-900-1015 | 5.80 ppb |
| 2019-06-03 | 2168-901-1000 | 7.90 ppb |
| 2019-06-03 | 2168-902-1030 | 2.90 ppb |
| 2019-06-03 | 2168-903-1100 | 3.50 ppb |
| 2019-06-05 | 2168-904-1230 | 2.00 ppb |
| 2019-07-01 | 2168-900-1410 | 8.30 ppb |
| 2019-07-01 | 2168-901-1430 | 7.80 ppb |
| 2019-07-01 | 2168-902-1345 | 1.70 ppb |
| 2019-07-01 | 2168-903-1315 | 13.0 ppb |
| 2019-07-02 | 2168-904-0805 | 8.20 ppb |
| 2019-08-05 | 2168-903-1635 | 8.20 ppb |
| 2019-08-06 | 2168-900-1425 | 4.40 ppb |
| 2019-08-06 | 2168-901-1510 | 4.00 ppb |
| 2019-08-06 | 2168-902-1230 | 1.50 ppb |
| 2019-08-07 | 2168-904-0715 | 1.90 ppb |
| 2019-09-10 | 2168-900-1355 | 4.10 ppb |
| 2019-09-10 | 2168-901-1415 | 9.40 ppb |
| 2019-09-10 | 2168-902-1300 | ND |
| 2019-09-10 | 2168-903-1327 | 2.90 ppb |
| 2019-09-10 | 2168-904-0800 | 1.10 ppb |
| 2019-10-08 | 2168-900-1055 | 7.20 ppb |
| 2019-10-08 | 2168-901-1025 | 13.0 ppb |
| 2019-10-08 | 2168-902-1035 | 6.80 ppb |
| 2019-10-08 | 2168-903-1010 | 1.90 ppb |
| 2019-10-09 | 2168-904-0925 | 4.10 ppb |
| 2019-11-04 | 2168-900-0950 | 2.50 ppb |
| 2019-11-04 | 2168-901-1100 | 20.0 ppb |
| 2019-11-04 | 2168-902-1010 | ND |
| 2019-11-04 | 2168-903-1035 | 4.60 ppb |
| 2019-11-05 | 2168-904-0745 | 2.60 ppb |
| 2019-12-06 | 2168-903-1000 | 16.0 ppb |
| 2019-12-07 | 2168-900-1410 | 6.30 ppb |
| 2019-12-07 | 2168-902-1140 | 7.80 ppb |
| 2019-12-10 | 2168-901-1635 | 9.80 ppb |
| 2019-12-11 | 2168-904-0815 | 6.90 ppb |