Chloroform
California Water Service - Stockton
Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Read More.
In addition to tap water disinfection, chloroform pollution in the environment also comes from industrial discharges from pulp and paper mills, and from urban wastewater effluent. Human studies show that chloroform damages the kidneys, liver and central nervous system. In animals, chloroform causes infertility, birth defects and cancer.
525
Samples
0
Samples exceeding legal limit (MCL)
293
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 10.5 ppb | 116 | 60 | ND - 42.1 ppb |
| 2015 | 23.8 ppb | 102 | 58 | ND - 95.9 ppb |
| 2016 | 20.7 ppb | 72 | 39 | ND - 61.2 ppb |
| 2017 | 17.2 ppb | 83 | 43 | ND - 67.0 ppb |
| 2018 | 12.8 ppb | 77 | 46 | ND - 49.0 ppb |
| 2019 | 14.9 ppb | 75 | 47 | ND - 55.8 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.4 ppb
The EWG Health Guideline of 0.4 ppb for chloroform 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 |
|---|---|---|
| 2014-01-06 | 5701-069-0917 | 14.9 ppb |
| 2014-01-06 | 5701-131-0905 | 15.6 ppb |
| 2014-01-23 | 5701-007-1227 | 0.930 ppb |
| 2014-01-23 | 5701-013-1145 | ND |
| 2014-01-23 | 5701-028-1205 | ND |
| 2014-01-23 | 5701-064-1045 | ND |
| 2014-01-23 | 5701-065-1105 | ND |
| 2014-01-23 | 5701-067-1125 | ND |
| 2014-02-03 | 5701-069-0957 | 12.4 ppb |
| 2014-02-03 | 5701-131-0945 | 12.1 ppb |
| 2014-02-04 | 5701-063-1036 | ND |
| 2014-02-04 | 5701-125-1040 | ND |
| 2014-02-12 | 5701-063-0930 | ND |
| 2014-02-12 | 5701-125-0937 | ND |
| 2014-02-13 | 5701-131-1156 | 19.4 ppb |
| 2014-02-13 | 5701-900-1130 | 22.6 ppb |
| 2014-02-13 | 5701-901-0905 | 21.2 ppb |
| 2014-02-13 | 5701-902-1000 | 25.0 ppb |
| 2014-02-13 | 5701-903-0930 | 21.3 ppb |
| 2014-02-13 | 5701-904-1104 | 23.9 ppb |
| 2014-02-13 | 5701-905-1141 | 20.7 ppb |
| 2014-02-13 | 5701-906-1024 | 22.0 ppb |
| 2014-02-20 | 5701-062-1115 | 1.20 ppb |
| 2014-03-04 | 5701-069-0715 | 17.1 ppb |
| 2014-03-04 | 5701-131-0726 | 13.7 ppb |
| 2014-03-11 | 5701-063-1238 | ND |
| 2014-03-11 | 5701-125-1210 | ND |
| 2014-03-18 | 5701-130-1146 | 2.01 ppb |
| 2014-03-18 | 5701-132-1310 | 1.20 ppb |
| 2014-04-02 | 5701-069-0920 | 20.4 ppb |
| 2014-04-02 | 5701-131-0940 | 17.1 ppb |
| 2014-04-09 | 5701-063-1212 | ND |
| 2014-04-09 | 5701-125-1307 | ND |
| 2014-04-15 | 5701-007-1013 | ND |
| 2014-04-15 | 5701-013-1210 | ND |
| 2014-04-15 | 5701-018-1232 | 0.590 ppb |
| 2014-04-15 | 5701-028-1150 | ND |
| 2014-04-15 | 5701-065-1624 | ND |
| 2014-04-15 | 5701-067-1130 | ND |
| 2014-04-29 | 9590-018-1015 | ND |
| 2014-04-29 | 9590-018-1150 | ND |
| 2014-04-30 | 5701-050-1319 | ND |
| 2014-04-30 | 5701-052-1020 | ND |
| 2014-05-06 | 5701-069-0930 | 22.5 ppb |
| 2014-05-06 | 5701-131-0947 | 22.7 ppb |
| 2014-05-12 | 5701-131-1141 | 23.8 ppb |
| 2014-05-12 | 5701-901-1237 | 3.36 ppb |
| 2014-05-12 | 5701-905-1130 | 3.18 ppb |
| 2014-05-12 | 5701-906-1010 | 26.0 ppb |
| 2014-05-13 | 5701-063-1000 | ND |
| 2014-05-13 | 5701-125-0925 | ND |
| 2014-05-13 | 5701-900-1311 | 26.8 ppb |
| 2014-05-13 | 5701-902-1233 | 31.8 ppb |
| 2014-05-13 | 5701-903-1215 | 28.4 ppb |
| 2014-05-13 | 5701-904-1248 | 29.8 ppb |
| 2014-05-21 | 5701-053-1015 | ND |
| 2014-05-21 | 5701-062-1125 | 0.660 ppb |
| 2014-06-03 | 5701-069-1117 | 17.9 ppb |
| 2014-06-03 | 5701-131-2112 | 15.7 ppb |
| 2014-06-04 | 5701-063-1144 | ND |
| 2014-06-04 | 5701-125-1059 | ND |
| 2014-06-23 | 5701-130-0954 | ND |
| 2014-06-23 | 5701-132-1020 | ND |
| 2014-07-03 | 5701-069-1035 | 29.1 ppb |
| 2014-07-03 | 5701-131-1052 | 22.9 ppb |
| 2014-07-07 | 5701-063-0918 | ND |
| 2014-07-07 | 5701-125-0921 | ND |
| 2014-07-22 | 5701-007-1532 | ND |
| 2014-07-22 | 5701-013-1512 | ND |
| 2014-07-22 | 5701-028-1026 | ND |
| 2014-07-22 | 5701-065-0914 | ND |
| 2014-07-22 | 5701-067-1001 | ND |
| 2014-07-30 | 5701-029-1140 | ND |
| 2014-08-12 | 5810-069-1325 | 26.0 ppb |
| 2014-08-12 | 5810-131-1340 | 28.0 ppb |
| 2014-08-13 | 5810-063-1029 | ND |
| 2014-08-13 | 5810-125-0955 | ND |
| 2014-08-14 | 5701-131-0950 | 25.3 ppb |
| 2014-08-14 | 5701-900-1152 | 31.6 ppb |
| 2014-08-14 | 5701-901-1012 | 5.16 ppb |
| 2014-08-14 | 5701-902-1047 | 42.1 ppb |
| 2014-08-14 | 5701-903-1120 | 29.9 ppb |
| 2014-08-14 | 5701-904-1013 | 41.7 ppb |
| 2014-08-14 | 5701-905-0935 | 28.6 ppb |
| 2014-08-14 | 5701-906-1032 | 28.4 ppb |
| 2014-08-27 | 5701-062-1228 | 0.550 ppb |
| 2014-09-16 | 5701-069-0950 | 36.4 ppb |
| 2014-09-16 | 5701-131-0937 | 35.5 ppb |
| 2014-09-17 | 5701-063-1156 | ND |
| 2014-09-17 | 5701-125-1200 | ND |
| 2014-09-30 | 5701-132-1144 | ND |
| 2014-10-13 | 9590-063-1550 | ND |
| 2014-10-13 | 9590-125-1318 | ND |
| 2014-10-27 | 5701-028-1330 | ND |
| 2014-10-27 | 5701-065-1150 | ND |
| 2014-10-27 | 5701-067-1208 | ND |
| 2014-10-29 | 5701-007-1240 | ND |
| 2014-10-29 | 5701-013-1145 | ND |
| 2014-11-04 | 5701-069-0932 | 22.8 ppb |
| 2014-11-04 | 5701-131-0944 | 18.0 ppb |
| 2014-11-05 | 5701-063-1027 | ND |
| 2014-11-05 | 5701-125-1033 | ND |
| 2014-11-12 | 5701-131-1504 | 23.6 ppb |
| 2014-11-12 | 5701-900-1435 | 27.9 ppb |
| 2014-11-12 | 5701-901-1522 | ND |
| 2014-11-12 | 5701-902-1352 | 32.8 ppb |
| 2014-11-12 | 5701-903-1338 | 25.6 ppb |
| 2014-11-12 | 5701-904-1423 | 38.8 ppb |
| 2014-11-12 | 5701-905-1453 | 0.770 ppb |
| 2014-11-12 | 5701-906-1407 | 25.3 ppb |
| 2014-11-18 | 5701-062-1332 | 0.530 ppb |
| 2014-12-09 | 5701-063-1050 | ND |
| 2014-12-09 | 5701-125-1026 | ND |
| 2014-12-15 | 9590-069-1032 | 28.0 ppb |
| 2014-12-17 | 5701-130-1120 | ND |
| 2014-12-17 | 5701-132-1159 | ND |
| 2015-01-12 | 5701-069-1027 | 37.7 ppb |
| 2015-01-12 | 5701-131-1039 | 36.2 ppb |
| 2015-01-15 | 5701-063-0955 | ND |
| 2015-01-15 | 5701-125-0959 | ND |
| 2015-01-20 | 5701-069-1014 | 27.4 ppb |
| 2015-01-20 | 5701-131-1029 | 28.5 ppb |
| 2015-01-22 | 5701-054-1244 | 0.790 ppb |
| 2015-01-26 | 5701-069-1105 | 23.5 ppb |
| 2015-01-26 | 5701-131-1120 | 22.6 ppb |
| 2015-01-28 | 5701-013-1154 | ND |
| 2015-01-28 | 5701-065-1205 | ND |
| 2015-01-28 | 5701-067-1140 | 3.23 ppb |
| 2015-02-02 | 5701-069-1241 | 23.1 ppb |
| 2015-02-02 | 5701-131-1232 | 16.1 ppb |
| 2015-02-12 | 5701-063-0938 | ND |
| 2015-02-12 | 5701-125-0942 | ND |
| 2015-02-24 | 5701-013-1126 | ND |
| 2015-02-24 | 5701-045-1100 | ND |
| 2015-02-24 | 5701-062-1142 | 0.550 ppb |
| 2015-02-25 | 5701-069-1000 | 87.0 ppb |
| 2015-02-25 | 5701-131-1049 | 89.1 ppb |
| 2015-02-25 | 5701-900-1126 | 95.9 ppb |
| 2015-02-25 | 5701-901-1109 | 2.03 ppb |
| 2015-02-25 | 5701-902-1210 | 82.4 ppb |
| 2015-02-25 | 5701-903-1230 | 86.6 ppb |
| 2015-02-25 | 5701-904-1146 | 94.3 ppb |
| 2015-02-25 | 5701-905-1028 | 64.8 ppb |
| 2015-02-25 | 5701-906-1244 | 89.2 ppb |
| 2015-03-03 | 5701-069-0804 | 58.4 ppb |
| 2015-03-03 | 5701-131-0805 | 41.6 ppb |
| 2015-03-10 | 5701-063-1345 | ND |
| 2015-03-10 | 5701-069-0926 | 41.2 ppb |
| 2015-03-10 | 5701-125-1325 | ND |
| 2015-03-10 | 5701-131-0926 | 41.6 ppb |
| 2015-03-16 | 5701-069-0847 | 48.1 ppb |
| 2015-03-16 | 5701-131-0848 | 49.9 ppb |
| 2015-03-23 | 5701-069-0830 | 47.9 ppb |
| 2015-03-23 | 5701-131-0831 | 49.5 ppb |
| 2015-03-30 | 5701-069-0957 | 54.6 ppb |
| 2015-03-30 | 5701-131-1017 | 56.0 ppb |
| 2015-04-08 | 5701-051-1223 | 0.690 ppb |
| 2015-04-14 | 5701-063-1150 | ND |
| 2015-04-14 | 5701-125-1130 | ND |
| 2015-04-15 | 5701-065-1035 | ND |
| 2015-05-12 | 9590-063-1035 | ND |
| 2015-05-12 | 9590-125-1020 | ND |
| 2015-05-13 | 5701-131-0854 | 41.3 ppb |
| 2015-05-13 | 5701-900-0854 | 54.5 ppb |
| 2015-05-13 | 5701-901-0854 | ND |
| 2015-05-13 | 5701-902-0854 | 53.7 ppb |
| 2015-05-13 | 5701-903-0854 | 49.8 ppb |
| 2015-05-13 | 5701-904-0854 | 62.0 ppb |
| 2015-05-13 | 5701-905-0854 | 44.6 ppb |
| 2015-05-13 | 5701-906-0854 | 47.0 ppb |
| 2015-05-21 | 5701-007-1650 | ND |
| 2015-05-21 | 5701-028-1240 | ND |
| 2015-05-21 | 5701-062-1325 | 0.510 ppb |
| 2015-06-09 | 5701-063-0954 | ND |
| 2015-06-09 | 5701-125-1025 | ND |
| 2015-06-16 | 5701-055-1406 | 1.03 ppb |
| 2015-06-16 | 5701-058-1535 | 3.46 ppb |
| 2015-06-16 | 5701-069-1030 | 57.0 ppb |
| 2015-06-16 | 5701-131-1040 | 55.6 ppb |
| 2015-06-16 | 5701-132-1348 | ND |
| 2015-07-14 | 5701-063-1030 | ND |
| 2015-07-14 | 5701-125-1015 | ND |
| 2015-07-22 | 5701-056-1112 | ND |
| 2015-07-22 | 5701-065-1145 | ND |
| 2015-08-11 | 5701-131-0655 | 45.5 ppb |
| 2015-08-11 | 5701-900-0655 | 57.0 ppb |
| 2015-08-11 | 5701-901-0655 | 49.6 ppb |
| 2015-08-11 | 5701-902-0655 | 61.8 ppb |
| 2015-08-11 | 5701-903-0655 | 59.3 ppb |
| 2015-08-11 | 5701-904-0655 | 66.1 ppb |
| 2015-08-11 | 5701-905-0655 | 53.6 ppb |
| 2015-08-11 | 5701-906-0655 | 52.4 ppb |
| 2015-08-16 | 1610-133-1900 | ND |
| 2015-08-26 | 5701-063-1300 | ND |
| 2015-08-26 | 5701-125-1303 | ND |
| 2015-08-30 | 5701-062-1138 | ND |
| 2015-09-09 | 5701-063-1018 | ND |
| 2015-09-09 | 5701-125-1021 | ND |
| 2015-10-15 | 5701-060-1235 | ND |
| 2015-10-15 | 5701-063-1154 | ND |
| 2015-10-15 | 5701-125-1150 | ND |
| 2015-10-27 | 5701-050-1026 | ND |
| 2015-10-27 | 5701-065-0930 | ND |
| 2015-11-04 | 5701-063-1123 | ND |
| 2015-11-04 | 5701-125-1103 | ND |
| 2015-11-19 | 5810-059-1048 | ND |
| 2015-11-20 | 5810-131-1200 | 13.0 ppb |
| 2015-11-20 | 5810-900-1025 | 14.0 ppb |
| 2015-11-20 | 5810-901-1135 | ND |
| 2015-11-20 | 5810-902-1245 | 32.0 ppb |
| 2015-11-20 | 5810-903-1117 | 16.0 ppb |
| 2015-11-20 | 5810-904-1046 | 23.0 ppb |
| 2015-11-20 | 5810-905-0948 | ND |
| 2015-11-20 | 5810-906-1100 | 14.0 ppb |
| 2015-12-07 | 5701-062-1103 | ND |
| 2015-12-08 | 5701-063-1206 | ND |
| 2015-12-08 | 5701-125-1215 | ND |
| 2015-12-09 | 5701-018-0535 | 0.850 ppb |
| 2016-01-13 | 5701-063-0956 | ND |
| 2016-01-13 | 5701-125-0949 | ND |
| 2016-01-20 | 5701-065-1305 | ND |
| 2016-02-03 | 5701-063-1215 | ND |
| 2016-02-03 | 5701-125-1200 | ND |
| 2016-02-17 | 5701-131-0725 | 33.9 ppb |
| 2016-02-17 | 5701-900-0725 | 45.7 ppb |
| 2016-02-17 | 5701-901-0725 | 32.5 ppb |
| 2016-02-17 | 5701-902-0725 | 54.6 ppb |
| 2016-02-17 | 5701-903-0725 | 35.1 ppb |
| 2016-02-17 | 5701-904-0725 | 55.0 ppb |
| 2016-02-17 | 5701-905-0725 | 1.71 ppb |
| 2016-02-17 | 5701-906-0725 | 40.1 ppb |
| 2016-02-23 | 5701-013-1306 | ND |
| 2016-02-23 | 5701-061-1135 | ND |
| 2016-02-23 | 5701-062-1347 | 0.510 ppb |
| 2016-03-09 | 5701-063-1024 | ND |
| 2016-03-09 | 5701-125-1004 | ND |
| 2016-04-12 | 5701-063-1324 | ND |
| 2016-04-12 | 5701-125-1304 | ND |
| 2016-04-13 | 5701-051-1140 | 2.70 ppb |
| 2016-04-13 | 5701-065-1115 | ND |
| 2016-05-10 | 5701-063-1037 | ND |
| 2016-05-10 | 5701-125-1042 | ND |
| 2016-05-10 | 5701-131-0724 | 39.4 ppb |
| 2016-05-10 | 5701-900-0724 | 52.4 ppb |
| 2016-05-10 | 5701-901-0724 | 23.6 ppb |
| 2016-05-10 | 5701-902-0724 | 56.1 ppb |
| 2016-05-10 | 5701-903-0724 | 57.4 ppb |
| 2016-05-10 | 5701-904-0724 | 61.2 ppb |
| 2016-05-10 | 5701-905-0724 | 7.84 ppb |
| 2016-05-10 | 5701-906-0724 | 50.6 ppb |
| 2016-05-17 | 5701-007-1123 | ND |
| 2016-05-17 | 5701-028-1107 | ND |
| 2016-05-17 | 5701-062-1144 | ND |
| 2016-06-14 | 5701-063-1253 | ND |
| 2016-06-14 | 5701-125-1235 | ND |
| 2016-06-21 | 5701-069-1030 | 27.0 ppb |
| 2016-06-21 | 5701-131-1050 | 28.3 ppb |
| 2016-06-21 | 5701-132-1300 | ND |
| 2016-07-05 | 5701-063-1450 | ND |
| 2016-07-05 | 5701-125-1434 | ND |
| 2016-07-26 | 5701-018-1225 | 0.840 ppb |
| 2016-08-09 | 5810-063-1050 | ND |
| 2016-08-09 | 5810-125-1030 | ND |
| 2016-08-15 | 5701-131-1040 | 40.4 ppb |
| 2016-08-15 | 5701-900-1040 | 48.8 ppb |
| 2016-08-15 | 5701-901-1040 | 47.7 ppb |
| 2016-08-15 | 5701-902-1040 | 50.0 ppb |
| 2016-08-15 | 5701-903-1040 | 43.7 ppb |
| 2016-08-15 | 5701-904-1040 | 58.1 ppb |
| 2016-08-15 | 5701-905-1040 | 44.6 ppb |
| 2016-08-15 | 5701-906-1040 | 44.6 ppb |
| 2016-08-30 | 5701-062-1410 | ND |
| 2016-09-13 | 5701-063-1244 | ND |
| 2016-09-13 | 5701-125-1226 | ND |
| 2016-10-13 | 5701-063-1332 | ND |
| 2016-10-13 | 5701-125-1330 | ND |
| 2016-11-08 | 5701-063-1126 | ND |
| 2016-11-08 | 5701-125-1122 | ND |
| 2016-11-16 | 5701-062-1150 | 1.21 ppb |
| 2016-11-17 | 5701-131-0855 | 40.6 ppb |
| 2016-11-17 | 5701-900-0855 | 48.2 ppb |
| 2016-11-17 | 5701-901-0855 | 42.8 ppb |
| 2016-11-17 | 5701-902-0855 | 56.8 ppb |
| 2016-11-17 | 5701-903-0855 | 51.2 ppb |
| 2016-11-17 | 5701-904-0855 | 56.8 ppb |
| 2016-11-17 | 5701-905-0855 | 49.7 ppb |
| 2016-11-17 | 5701-906-0855 | 45.8 ppb |
| 2016-12-06 | 5810-015-1014 | 11.0 ppb |
| 2016-12-14 | 5701-063-1349 | ND |
| 2016-12-14 | 5701-125-1406 | ND |
| 2017-01-12 | 5701-063-1110 | ND |
| 2017-01-12 | 5701-125-1055 | ND |
| 2017-01-18 | 5701-064-1008 | ND |
| 2017-02-14 | 5701-063-1045 | ND |
| 2017-02-14 | 5701-125-1030 | ND |
| 2017-02-17 | 5810-131-0945 | 56.0 ppb |
| 2017-02-17 | 5810-900-1320 | 65.0 ppb |
| 2017-02-17 | 5810-901-1020 | 62.0 ppb |
| 2017-02-17 | 5810-902-1145 | 67.0 ppb |
| 2017-02-17 | 5810-903-1130 | 61.0 ppb |
| 2017-02-17 | 5810-904-1305 | 65.0 ppb |
| 2017-02-17 | 5810-905-0930 | 25.0 ppb |
| 2017-02-17 | 5810-906-1035 | 52.0 ppb |
| 2017-02-21 | 5701-062-1320 | 0.810 ppb |
| 2017-03-08 | 5810-063-1115 | ND |
| 2017-03-08 | 5810-125-1050 | ND |
| 2017-04-06 | 5701-063-1323 | ND |
| 2017-04-06 | 5701-125-1305 | ND |
| 2017-04-17 | 5701-051-1110 | 0.510 ppb |
| 2017-04-17 | 5701-052-1155 | ND |
| 2017-04-18 | 5701-133-1122 | ND |
| 2017-05-02 | 5701-052-1302 | ND |
| 2017-05-03 | 5701-063-1028 | ND |
| 2017-05-03 | 5701-125-1045 | ND |
| 2017-05-12 | 5701-131-0903 | 28.0 ppb |
| 2017-05-12 | 5701-900-0903 | 53.2 ppb |
| 2017-05-12 | 5701-901-0903 | 32.6 ppb |
| 2017-05-12 | 5701-902-0903 | 42.6 ppb |
| 2017-05-12 | 5701-903-0903 | 39.9 ppb |
| 2017-05-12 | 5701-904-0903 | 50.9 ppb |
| 2017-05-12 | 5701-905-0903 | 31.0 ppb |
| 2017-05-12 | 5701-906-0903 | 36.8 ppb |
| 2017-05-15 | 5701-007-1100 | ND |
| 2017-05-15 | 5701-062-1255 | ND |
| 2017-05-16 | 5701-028-1410 | ND |
| 2017-05-16 | 5701-053-1540 | 4.57 ppb |
| 2017-05-24 | 5701-018-1035 | 0.700 ppb |
| 2017-06-14 | 5701-052-1000 | ND |
| 2017-06-14 | 5701-130-1222 | ND |
| 2017-06-14 | 5701-132-1116 | ND |
| 2017-06-15 | 5701-069-1240 | 26.5 ppb |
| 2017-06-15 | 5701-131-1250 | 27.6 ppb |
| 2017-06-20 | 5701-063-1025 | ND |
| 2017-06-20 | 5701-125-1012 | ND |
| 2017-07-11 | 5701-052-1230 | ND |
| 2017-07-11 | 5701-063-1524 | ND |
| 2017-07-11 | 5701-125-1511 | ND |
| 2017-07-25 | 5701-029-1014 | ND |
| 2017-07-25 | 5701-133-1420 | ND |
| 2017-08-02 | 5701-052-1310 | 1.02 ppb |
| 2017-08-08 | 5701-063-1140 | 1.65 ppb |
| 2017-08-08 | 5701-125-1143 | ND |
| 2017-08-16 | 5810-131-1446 | 31.0 ppb |
| 2017-08-16 | 5810-900-1124 | 36.0 ppb |
| 2017-08-16 | 5810-901-1302 | 38.0 ppb |
| 2017-08-16 | 5810-902-1336 | 54.0 ppb |
| 2017-08-16 | 5810-903-1358 | 39.0 ppb |
| 2017-08-16 | 5810-904-1050 | 59.0 ppb |
| 2017-08-16 | 5810-905-1426 | 39.0 ppb |
| 2017-08-16 | 5810-906-1150 | 43.0 ppb |
| 2017-08-17 | 5701-062-1135 | 1.84 ppb |
| 2017-09-06 | 5701-052-1429 | ND |
| 2017-09-07 | 5701-063-1348 | 1.74 ppb |
| 2017-09-07 | 5701-125-1344 | ND |
| 2017-10-11 | 5701-052-1020 | ND |
| 2017-10-12 | 5701-063-1210 | 1.44 ppb |
| 2017-10-12 | 5701-125-1200 | ND |
| 2017-10-16 | 5701-133-1115 | ND |
| 2017-11-06 | 5701-063-1523 | ND |
| 2017-11-06 | 5701-125-1521 | ND |
| 2017-11-08 | 5810-052-0930 | ND |
| 2017-11-13 | 5810-131-1013 | 24.0 ppb |
| 2017-11-13 | 5810-900-1058 | 30.0 ppb |
| 2017-11-13 | 5810-901-1236 | 25.0 ppb |
| 2017-11-13 | 5810-902-1137 | 37.0 ppb |
| 2017-11-13 | 5810-903-1314 | 30.0 ppb |
| 2017-11-13 | 5810-904-1118 | 52.0 ppb |
| 2017-11-13 | 5810-905-1033 | 26.0 ppb |
| 2017-11-13 | 5810-906-1257 | 26.0 ppb |
| 2017-11-28 | 5701-062-0955 | ND |
| 2017-11-28 | 5701-067-1033 | ND |
| 2017-12-05 | 5701-063-1120 | ND |
| 2017-12-05 | 5701-125-1100 | ND |
| 2018-01-03 | 5701-063-1143 | 0.710 ppb |
| 2018-01-03 | 5701-125-1132 | ND |
| 2018-01-24 | 5701-133-1520 | ND |
| 2018-02-06 | 5701-063-1004 | 1.27 ppb |
| 2018-02-06 | 5701-125-1001 | ND |
| 2018-02-14 | 5810-131-1530 | 19.0 ppb |
| 2018-02-14 | 5810-900-0955 | 22.0 ppb |
| 2018-02-14 | 5810-901-1410 | 19.0 ppb |
| 2018-02-14 | 5810-902-1045 | 39.0 ppb |
| 2018-02-14 | 5810-903-1109 | 26.0 ppb |
| 2018-02-14 | 5810-904-1015 | 36.0 ppb |
| 2018-02-14 | 5810-905-1516 | 21.0 ppb |
| 2018-02-14 | 5810-906-1355 | 22.0 ppb |
| 2018-02-20 | 5701-045-1000 | ND |
| 2018-02-20 | 5701-062-1320 | 0.980 ppb |
| 2018-04-11 | 9590-051-1340 | ND |
| 2018-04-11 | 9590-133-1035 | ND |
| 2018-05-08 | 5701-007-1040 | ND |
| 2018-05-08 | 5701-054-1140 | ND |
| 2018-05-08 | 5701-062-1115 | 0.710 ppb |
| 2018-05-09 | 5701-063-1040 | 1.70 ppb |
| 2018-05-09 | 5701-125-1054 | ND |
| 2018-05-15 | 5810-131-0902 | 17.0 ppb |
| 2018-05-15 | 5810-900-1111 | 29.0 ppb |
| 2018-05-15 | 5810-901-1020 | 19.0 ppb |
| 2018-05-15 | 5810-902-1327 | 29.0 ppb |
| 2018-05-15 | 5810-903-1305 | 25.0 ppb |
| 2018-05-15 | 5810-904-1145 | 38.0 ppb |
| 2018-05-15 | 5810-905-0944 | 20.0 ppb |
| 2018-05-15 | 5810-906-1225 | 22.0 ppb |
| 2018-06-14 | 5810-059-1510 | ND |
| 2018-06-14 | 5810-060-1515 | ND |
| 2018-06-14 | 5810-069-1340 | 20.0 ppb |
| 2018-06-14 | 5810-131-1355 | 20.0 ppb |
| 2018-06-26 | 5701-055-1205 | ND |
| 2018-06-26 | 5701-058-1040 | 1.11 ppb |
| 2018-06-26 | 5701-063-1117 | 2.04 ppb |
| 2018-06-26 | 5701-125-1121 | ND |
| 2018-06-26 | 5701-132-1505 | 0.900 ppb |
| 2018-07-10 | 5810-063-1250 | ND |
| 2018-07-10 | 5810-125-1230 | ND |
| 2018-07-17 | 5701-056-1210 | ND |
| 2018-07-17 | 5701-133-1350 | ND |
| 2018-08-06 | 5701-063-1407 | 2.05 ppb |
| 2018-08-06 | 5701-125-1354 | ND |
| 2018-08-06 | 5701-125-1357 | ND |
| 2018-08-16 | 5701-062-1015 | 0.910 ppb |
| 2018-08-16 | 5701-131-1011 | 32.6 ppb |
| 2018-08-16 | 5701-900-1011 | 37.2 ppb |
| 2018-08-16 | 5701-901-1011 | 35.1 ppb |
| 2018-08-16 | 5701-902-1011 | 49.0 ppb |
| 2018-08-16 | 5701-903-1011 | 38.8 ppb |
| 2018-08-16 | 5701-904-1011 | 42.9 ppb |
| 2018-08-16 | 5701-905-1011 | 35.2 ppb |
| 2018-08-16 | 5701-906-1011 | 37.0 ppb |
| 2018-09-06 | 5701-063-1315 | ND |
| 2018-09-06 | 5701-125-1321 | ND |
| 2018-09-06 | 5701-125-1338 | ND |
| 2018-10-02 | 5701-063-1400 | 0.500 ppb |
| 2018-10-02 | 5701-125-1406 | ND |
| 2018-10-02 | 5701-125-1424 | 0.980 ppb |
| 2018-10-16 | 5810-133-1155 | ND |
| 2018-10-24 | 5810-050-1425 | ND |
| 2018-11-07 | 5701-063-1032 | ND |
| 2018-11-07 | 5701-125-1039 | ND |
| 2018-11-07 | 5701-125-1055 | ND |
| 2018-11-13 | 5701-131-0936 | 19.1 ppb |
| 2018-11-13 | 5701-900-0936 | 31.0 ppb |
| 2018-11-13 | 5701-901-0936 | 20.7 ppb |
| 2018-11-13 | 5701-902-0936 | 37.2 ppb |
| 2018-11-13 | 5701-903-0936 | 26.0 ppb |
| 2018-11-13 | 5701-904-0936 | 39.0 ppb |
| 2018-11-13 | 5701-905-0936 | 23.4 ppb |
| 2018-11-13 | 5701-906-0936 | 21.0 ppb |
| 2018-11-26 | 5810-062-1305 | ND |
| 2018-12-04 | 5810-063-1305 | ND |
| 2018-12-04 | 5810-125-1315 | ND |
| 2019-01-08 | 5810-063-1018 | ND |
| 2019-01-08 | 5810-125-1030 | ND |
| 2019-01-22 | 5810-061-1012 | 8.60 ppb |
| 2019-01-22 | 5810-133-1200 | ND |
| 2019-02-12 | 5701-051-1335 | ND |
| 2019-02-12 | 5701-063-1010 | 0.620 ppb |
| 2019-02-12 | 5701-125-1020 | ND |
| 2019-02-12 | 5701-125-1033 | ND |
| 2019-02-19 | 5701-131-0837 | 27.7 ppb |
| 2019-02-19 | 5701-900-0837 | 34.0 ppb |
| 2019-02-19 | 5701-901-0837 | 30.1 ppb |
| 2019-02-19 | 5701-902-0837 | 49.3 ppb |
| 2019-02-19 | 5701-903-0837 | 36.8 ppb |
| 2019-02-19 | 5701-904-0837 | 55.8 ppb |
| 2019-02-19 | 5701-905-0837 | 31.3 ppb |
| 2019-02-19 | 5701-906-0837 | 34.7 ppb |
| 2019-02-26 | 5810-062-1150 | ND |
| 2019-03-18 | 5701-063-1432 | ND |
| 2019-03-18 | 5701-125-1439 | ND |
| 2019-03-18 | 5701-125-1450 | ND |
| 2019-04-01 | 5701-063-1348 | 0.600 ppb |
| 2019-04-01 | 5701-125-1356 | ND |
| 2019-04-15 | 5810-050-1335 | ND |
| 2019-04-15 | 5810-133-1155 | ND |
| 2019-04-17 | 5701-051-1305 | ND |
| 2019-05-13 | 5701-063-0935 | ND |
| 2019-05-13 | 5701-125-1007 | ND |
| 2019-05-14 | 5701-131-0927 | 21.3 ppb |
| 2019-05-14 | 5701-900-0927 | 26.8 ppb |
| 2019-05-14 | 5701-901-0927 | 23.9 ppb |
| 2019-05-14 | 5701-902-0927 | 28.7 ppb |
| 2019-05-14 | 5701-903-0927 | 25.7 ppb |
| 2019-05-14 | 5701-904-0927 | 37.2 ppb |
| 2019-05-14 | 5701-905-0927 | 24.4 ppb |
| 2019-05-14 | 5701-906-0927 | 24.9 ppb |
| 2019-05-21 | 5701-007-1120 | ND |
| 2019-05-21 | 5701-028-1000 | 1.25 ppb |
| 2019-05-21 | 5701-062-1100 | ND |
| 2019-06-05 | 5701-063-1246 | 1.23 ppb |
| 2019-06-05 | 5701-125-1310 | ND |
| 2019-06-17 | 5701-069-0945 | 26.5 ppb |
| 2019-06-17 | 5701-131-1030 | 27.2 ppb |
| 2019-06-19 | 5701-132-1020 | 1.42 ppb |
| 2019-07-08 | 5701-063-1101 | 1.19 ppb |
| 2019-07-08 | 5701-125-1040 | ND |
| 2019-07-16 | 5701-133-1335 | ND |
| 2019-08-13 | 5701-063-1403 | 1.55 ppb |
| 2019-08-13 | 5701-125-1350 | ND |
| 2019-08-14 | 5701-062-1238 | ND |
| 2019-08-15 | 5701-131-1145 | 23.2 ppb |
| 2019-08-15 | 5701-900-0950 | 29.7 ppb |
| 2019-08-15 | 5701-901-1320 | 25.3 ppb |
| 2019-08-15 | 5701-902-1110 | 34.9 ppb |
| 2019-08-15 | 5701-903-1045 | 32.7 ppb |
| 2019-08-15 | 5701-904-1015 | 37.0 ppb |
| 2019-08-15 | 5701-905-1410 | 26.5 ppb |
| 2019-08-15 | 5701-906-1345 | 28.2 ppb |
| 2019-09-10 | 5701-063-1327 | 1.66 ppb |
| 2019-09-10 | 5701-125-1308 | ND |
| 2019-10-08 | 5701-063-1359 | 1.45 ppb |
| 2019-10-08 | 5701-125-1418 | ND |
| 2019-10-15 | 5701-133-1220 | ND |
| 2019-11-06 | 5701-063-1346 | 1.32 ppb |
| 2019-11-06 | 5701-125-1330 | 20.1 ppb |
| 2019-11-14 | 5701-131-1405 | 28.0 ppb |
| 2019-11-14 | 5701-900-1315 | 32.4 ppb |
| 2019-11-14 | 5701-901-1425 | 29.9 ppb |
| 2019-11-14 | 5701-902-1220 | 37.2 ppb |
| 2019-11-14 | 5701-903-1455 | 35.2 ppb |
| 2019-11-14 | 5701-904-1250 | 42.3 ppb |
| 2019-11-14 | 5701-905-1340 | 31.8 ppb |
| 2019-11-14 | 5701-906-1025 | 31.2 ppb |
| 2019-11-20 | 5701-062-1332 | ND |
| 2019-12-11 | 5701-063-1401 | 2.28 ppb |
| 2019-12-11 | 5701-125-1355 | ND |