Arsenic
California Water Service - Stockton
Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.
442
Samples
0
Samples exceeding legal limit (MCL)
212
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 2.04 ppb | 83 | 83 | 0.1000 ppb - 7.31 ppb |
| 2015 | 2.60 ppb | 81 | 71 | ND - 8.85 ppb |
| 2016 | 1.24 ppb | 68 | 15 | ND - 7.96 ppb |
| 2017 | 1.33 ppb | 76 | 20 | ND - 8.43 ppb |
| 2018 | 1.02 ppb | 67 | 13 | ND - 6.52 ppb |
| 2019 | 0.795 ppb | 67 | 10 | ND - 6.74 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.004 ppb
The EWG Health Guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL) 10 ppb
The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-06 | 5701-131-1025 | 0.131 ppb |
| 2014-01-07 | 5701-028-1131 | 7.31 ppb |
| 2014-01-07 | 5701-069-1048 | 0.199 ppb |
| 2014-01-13 | 5701-131-0955 | 0.127 ppb |
| 2014-01-21 | 5701-131-1010 | 0.190 ppb |
| 2014-01-27 | 5701-131-1000 | 0.160 ppb |
| 2014-02-03 | 5701-028-1013 | 6.34 ppb |
| 2014-02-03 | 5701-069-0958 | 0.188 ppb |
| 2014-02-03 | 5701-131-0946 | 1.80 ppb |
| 2014-02-05 | 5810-013-1312 | 2.60 ppb |
| 2014-02-11 | 5701-131-1004 | 0.412 ppb |
| 2014-02-19 | 5701-131-0930 | 0.315 ppb |
| 2014-02-25 | 5701-131-1133 | 0.766 ppb |
| 2014-03-03 | 5701-131-1036 | 0.839 ppb |
| 2014-03-04 | 5701-028-1325 | 7.06 ppb |
| 2014-03-04 | 5701-069-0944 | 0.195 ppb |
| 2014-03-11 | 5701-131-0955 | 0.709 ppb |
| 2014-03-17 | 5701-131-0830 | 0.525 ppb |
| 2014-03-24 | 5701-131-1105 | 0.628 ppb |
| 2014-04-02 | 5810-015-1131 | 6.20 ppb |
| 2014-04-28 | 5810-013-1211 | 2.60 ppb |
| 2014-04-28 | 5810-050-1115 | 2.50 ppb |
| 2014-05-06 | 5701-131-0943 | 0.354 ppb |
| 2014-05-07 | 5810-055-1159 | 3.20 ppb |
| 2014-05-07 | 5701-069-1017 | 0.161 ppb |
| 2014-05-12 | 5701-131-1246 | 0.191 ppb |
| 2014-05-20 | 5701-131-0930 | 0.228 ppb |
| 2014-05-27 | 5701-131-0959 | 0.700 ppb |
| 2014-06-03 | 5701-131-1125 | 2.07 ppb |
| 2014-06-03 | 5701-132-1229 | 4.78 ppb |
| 2014-06-03 | 5810-132-1252 | 4.60 ppb |
| 2014-06-04 | 5810-058-1024 | 3.10 ppb |
| 2014-06-09 | 5701-131-1004 | 1.90 ppb |
| 2014-06-17 | 5701-131-1613 | 1.23 ppb |
| 2014-06-23 | 5701-131-1224 | 1.30 ppb |
| 2014-06-25 | 5701-028-0945 | 6.90 ppb |
| 2014-06-25 | 5701-069-1003 | 0.1000 ppb |
| 2014-07-01 | 5701-065-1055 | 2.35 ppb |
| 2014-07-01 | 5701-131-0950 | 2.40 ppb |
| 2014-07-02 | 5701-013-1400 | 4.18 ppb |
| 2014-07-07 | 5701-131-1057 | 0.200 ppb |
| 2014-07-08 | 5701-028-0956 | 7.16 ppb |
| 2014-07-08 | 5701-069-1040 | 0.161 ppb |
| 2014-07-15 | 5701-131-1030 | 0.115 ppb |
| 2014-07-21 | 5701-131-1146 | 0.700 ppb |
| 2014-07-30 | 5810-029-1109 | 4.00 ppb |
| 2014-08-05 | 5701-028-1124 | 6.42 ppb |
| 2014-08-05 | 5701-069-1023 | 0.194 ppb |
| 2014-08-12 | 5701-131-1350 | 0.287 ppb |
| 2014-08-19 | 5701-131-1056 | 0.161 ppb |
| 2014-08-26 | 5701-131-1018 | 0.358 ppb |
| 2014-09-02 | 5701-131-1150 | 1.36 ppb |
| 2014-09-10 | 5701-131-1225 | 0.276 ppb |
| 2014-09-15 | 5701-131-1051 | 0.448 ppb |
| 2014-09-16 | 5701-028-0942 | 6.79 ppb |
| 2014-09-16 | 5701-069-1008 | 0.174 ppb |
| 2014-09-23 | 5701-131-1321 | 0.950 ppb |
| 2014-09-29 | 5701-131-1022 | 0.281 ppb |
| 2014-09-30 | 5701-132-1148 | 4.70 ppb |
| 2014-10-07 | 5701-131-1120 | 0.933 ppb |
| 2014-10-14 | 5701-131-1058 | 0.196 ppb |
| 2014-10-20 | 5701-131-0954 | 1.22 ppb |
| 2014-10-27 | 5701-131-1210 | 1.60 ppb |
| 2014-10-28 | 5701-028-1242 | 6.53 ppb |
| 2014-10-28 | 5701-069-1250 | 0.408 ppb |
| 2014-11-03 | 5701-131-0927 | 1.10 ppb |
| 2014-11-04 | 5701-028-1344 | 6.74 ppb |
| 2014-11-04 | 5701-069-0930 | 0.209 ppb |
| 2014-11-12 | 5701-131-0732 | 0.209 ppb |
| 2014-11-18 | 5810-062-1326 | 2.20 ppb |
| 2014-11-18 | 5701-131-0945 | 0.196 ppb |
| 2014-11-24 | 5701-131-0930 | 1.24 ppb |
| 2014-12-01 | 5701-131-1011 | 1.19 ppb |
| 2014-12-08 | 5701-131-1033 | 4.40 ppb |
| 2014-12-10 | 5701-132-1424 | 4.18 ppb |
| 2014-12-15 | 5701-131-1048 | 0.192 ppb |
| 2014-12-17 | 5701-069-1820 | 0.177 ppb |
| 2014-12-21 | 5701-131-1120 | 0.182 ppb |
| 2014-12-29 | 5701-131-0900 | 0.228 ppb |
| 2014-12-30 | 5701-058-1418 | 3.78 ppb |
| 2014-12-30 | 5701-063-0945 | 6.29 ppb |
| 2014-12-30 | 5701-064-1155 | 5.89 ppb |
| 2014-12-30 | 5701-067-1115 | 3.61 ppb |
| 2015-01-05 | 5701-069-1128 | 0.212 ppb |
| 2015-01-05 | 5701-131-1138 | 3.65 ppb |
| 2015-01-12 | 5701-131-1043 | 0.248 ppb |
| 2015-01-20 | 5701-131-1031 | 0.286 ppb |
| 2015-01-22 | 5701-054-1239 | 5.43 ppb |
| 2015-01-22 | 5810-054-1248 | 4.80 ppb |
| 2015-01-26 | 5701-131-1116 | 0.256 ppb |
| 2015-02-02 | 5701-131-1229 | 2.69 ppb |
| 2015-02-09 | 5701-131-0923 | 0.270 ppb |
| 2015-02-11 | 5701-069-0946 | 0.295 ppb |
| 2015-02-17 | 5701-131-1112 | 4.12 ppb |
| 2015-02-23 | 5701-131-0931 | 0.346 ppb |
| 2015-03-02 | 5701-131-1017 | 4.93 ppb |
| 2015-03-10 | 5701-131-1215 | 0.559 ppb |
| 2015-03-11 | 5701-018-1257 | 2.78 ppb |
| 2015-03-16 | 5701-131-1030 | 0.458 ppb |
| 2015-03-23 | 5701-131-1032 | 0.529 ppb |
| 2015-03-30 | 5701-131-1019 | 0.515 ppb |
| 2015-04-06 | 5701-131-1021 | 1.20 ppb |
| 2015-04-07 | 5701-028-1347 | 6.60 ppb |
| 2015-04-08 | 5810-051-1231 | 4.20 ppb |
| 2015-04-13 | 5701-131-0956 | 0.542 ppb |
| 2015-04-20 | 5701-131-0906 | 0.602 ppb |
| 2015-04-27 | 5810-050-1210 | 4.00 ppb |
| 2015-04-27 | 5701-131-0920 | 0.720 ppb |
| 2015-05-04 | 5701-131-1144 | 1.39 ppb |
| 2015-05-11 | 5701-131-0955 | 0.695 ppb |
| 2015-05-12 | 5810-018-0655 | ND |
| 2015-05-18 | 5810-131-0951 | ND |
| 2015-05-20 | 5810-007-1145 | 3.10 ppb |
| 2015-05-20 | 5810-028-1020 | 7.80 ppb |
| 2015-05-25 | 5701-028-0944 | 7.58 ppb |
| 2015-05-25 | 5701-069-0949 | 0.870 ppb |
| 2015-05-26 | 5701-051-1100 | 5.11 ppb |
| 2015-05-26 | 5701-131-0923 | 1.18 ppb |
| 2015-06-01 | 5701-131-1127 | 0.580 ppb |
| 2015-06-03 | 5701-028-1150 | 7.87 ppb |
| 2015-06-09 | 5701-131-1356 | 0.651 ppb |
| 2015-06-16 | 5701-131-1006 | 0.620 ppb |
| 2015-06-23 | 5701-131-1338 | 0.731 ppb |
| 2015-06-29 | 5701-131-0946 | 1.07 ppb |
| 2015-07-06 | 5701-131-1302 | 3.83 ppb |
| 2015-07-13 | 5701-131-1125 | 0.683 ppb |
| 2015-07-14 | 5810-056-1420 | 3.80 ppb |
| 2015-07-15 | 5701-028-1109 | 7.11 ppb |
| 2015-07-21 | 5701-131-1050 | 0.817 ppb |
| 2015-07-27 | 5701-131-0936 | 1.24 ppb |
| 2015-08-03 | 5701-131-1055 | 0.932 ppb |
| 2015-08-10 | 5701-131-0917 | 0.775 ppb |
| 2015-08-16 | 1610-133-1900 | 4.60 ppb |
| 2015-08-19 | 5701-131-1104 | 1.66 ppb |
| 2015-08-24 | 5701-131-0943 | 1.99 ppb |
| 2015-08-25 | 5701-028-1030 | 6.49 ppb |
| 2015-08-25 | 5701-069-1022 | 1.69 ppb |
| 2015-08-26 | 5701-051-1156 | 5.07 ppb |
| 2015-08-31 | 5701-131-1031 | ND |
| 2015-09-02 | 5701-028-1318 | 8.85 ppb |
| 2015-09-09 | 5701-131-0946 | ND |
| 2015-09-14 | 5701-131-1031 | ND |
| 2015-09-21 | 5701-131-1033 | ND |
| 2015-09-28 | 5701-131-1152 | 2.07 ppb |
| 2015-10-06 | 5701-131-1111 | 3.58 ppb |
| 2015-10-13 | 5701-131-1029 | 2.96 ppb |
| 2015-10-19 | 5701-131-0937 | 3.16 ppb |
| 2015-10-26 | 5701-131-1112 | 3.29 ppb |
| 2015-10-27 | 5701-028-1130 | 7.38 ppb |
| 2015-11-02 | 5701-131-1040 | 2.67 ppb |
| 2015-11-05 | 5701-028-0800 | 7.74 ppb |
| 2015-11-05 | 5701-051-1330 | 5.74 ppb |
| 2015-11-05 | 5701-069-0810 | 2.95 ppb |
| 2015-11-09 | 5701-131-0948 | 3.30 ppb |
| 2015-11-16 | 5701-131-0911 | 5.94 ppb |
| 2015-11-24 | 5701-131-1302 | 2.35 ppb |
| 2015-11-30 | 5701-131-0929 | ND |
| 2015-12-07 | 5701-131-1026 | 2.13 ppb |
| 2015-12-09 | 5810-018-0523 | ND |
| 2015-12-15 | 5701-028-1055 | 7.70 ppb |
| 2015-12-15 | 5701-131-1143 | ND |
| 2015-12-21 | 5701-131-0920 | 2.63 ppb |
| 2015-12-29 | 5701-062-0958 | 5.75 ppb |
| 2015-12-29 | 5701-131-1035 | ND |
| 2016-01-04 | 5701-131-1004 | 4.90 ppb |
| 2016-01-11 | 5701-131-0935 | ND |
| 2016-01-19 | 5701-131-1150 | ND |
| 2016-01-20 | 5701-028-1211 | 7.82 ppb |
| 2016-01-25 | 5701-131-0955 | ND |
| 2016-02-01 | 5701-131-1117 | ND |
| 2016-02-08 | 5701-131-1406 | ND |
| 2016-02-09 | 5701-051-1320 | 5.72 ppb |
| 2016-02-10 | 5701-069-0735 | ND |
| 2016-02-16 | 5701-131-0930 | 2.53 ppb |
| 2016-02-22 | 5810-052-0736 | 7.00 ppb |
| 2016-02-22 | 5810-067-0916 | 3.40 ppb |
| 2016-02-22 | 5701-131-1015 | ND |
| 2016-02-29 | 5701-131-1034 | ND |
| 2016-03-07 | 5701-131-0920 | ND |
| 2016-03-14 | 5701-131-1246 | ND |
| 2016-03-20 | 5701-131-0835 | ND |
| 2016-03-28 | 5701-131-0935 | ND |
| 2016-04-04 | 5701-028-0930 | 7.96 ppb |
| 2016-04-04 | 5701-131-0900 | 3.44 ppb |
| 2016-04-11 | 5701-131-1057 | ND |
| 2016-04-19 | 5701-131-1240 | ND |
| 2016-04-25 | 5701-131-0929 | ND |
| 2016-05-02 | 5701-131-1155 | ND |
| 2016-05-09 | 5701-131-1113 | ND |
| 2016-05-10 | 5701-069-1106 | ND |
| 2016-05-11 | 5701-051-1145 | 5.60 ppb |
| 2016-05-16 | 5701-131-1012 | ND |
| 2016-05-23 | 5701-131-1133 | ND |
| 2016-05-31 | 5701-131-1005 | ND |
| 2016-06-06 | 5701-131-1005 | ND |
| 2016-06-13 | 5701-131-0915 | ND |
| 2016-06-20 | 5701-131-0940 | ND |
| 2016-06-27 | 5701-131-1218 | ND |
| 2016-07-05 | 5701-028-1310 | 7.73 ppb |
| 2016-07-05 | 5701-131-1250 | ND |
| 2016-07-11 | 5701-131-1225 | ND |
| 2016-07-19 | 5701-131-1105 | ND |
| 2016-07-25 | 5701-131-1353 | ND |
| 2016-08-02 | 5701-069-1115 | ND |
| 2016-08-02 | 5701-131-1125 | ND |
| 2016-08-03 | 5701-051-1606 | 5.48 ppb |
| 2016-08-08 | 5701-131-1000 | ND |
| 2016-08-15 | 5701-131-0954 | ND |
| 2016-08-22 | 5701-131-1125 | ND |
| 2016-08-31 | 5701-131-1416 | ND |
| 2016-09-06 | 5701-131-0950 | ND |
| 2016-09-13 | 5701-131-1059 | ND |
| 2016-09-19 | 5701-131-0750 | ND |
| 2016-09-27 | 5701-131-0954 | ND |
| 2016-10-03 | 5701-131-1313 | ND |
| 2016-10-11 | 5701-131-1125 | ND |
| 2016-10-17 | 5701-131-1255 | ND |
| 2016-10-18 | 5701-028-0953 | 7.44 ppb |
| 2016-10-19 | 5810-064-1200 | 5.90 ppb |
| 2016-10-24 | 5701-131-0900 | ND |
| 2016-10-31 | 5701-131-1018 | ND |
| 2016-11-08 | 5701-051-1430 | 5.04 ppb |
| 2016-11-08 | 5810-063-1145 | 4.70 ppb |
| 2016-11-08 | 5701-131-1040 | ND |
| 2016-11-10 | 5701-069-1315 | ND |
| 2016-11-14 | 5701-131-1045 | ND |
| 2016-11-21 | 5701-131-1056 | ND |
| 2016-11-28 | 5701-131-0735 | ND |
| 2016-12-05 | 5701-131-1008 | ND |
| 2016-12-12 | 5701-131-0930 | ND |
| 2016-12-20 | 5701-131-1112 | ND |
| 2016-12-27 | 5701-131-1115 | ND |
| 2017-01-03 | 5701-131-1050 | ND |
| 2017-01-06 | 5701-028-1220 | 8.43 ppb |
| 2017-01-09 | 5701-131-1040 | ND |
| 2017-01-17 | 5701-131-1035 | ND |
| 2017-01-23 | 5701-131-1155 | ND |
| 2017-01-30 | 5701-131-0938 | ND |
| 2017-02-02 | 5701-051-1120 | 4.98 ppb |
| 2017-02-06 | 5701-069-0935 | ND |
| 2017-02-06 | 5701-131-0945 | ND |
| 2017-02-14 | 5701-131-1410 | ND |
| 2017-02-21 | 5701-131-1127 | ND |
| 2017-03-01 | 5701-131-1340 | ND |
| 2017-03-06 | 5701-131-1030 | ND |
| 2017-03-13 | 5701-131-1245 | ND |
| 2017-03-20 | 5701-131-1125 | ND |
| 2017-03-27 | 5701-131-0926 | ND |
| 2017-04-04 | 5701-131-0925 | ND |
| 2017-04-11 | 5701-131-1335 | ND |
| 2017-04-17 | 5701-131-1005 | ND |
| 2017-04-18 | 5810-015-1348 | 5.30 ppb |
| 2017-04-18 | 5701-028-1406 | 6.47 ppb |
| 2017-04-24 | 5810-007-1010 | 4.00 ppb |
| 2017-04-26 | 5701-131-1057 | ND |
| 2017-05-01 | 5701-069-1247 | ND |
| 2017-05-01 | 5701-131-1302 | ND |
| 2017-05-03 | 5701-007-1516 | 6.35 ppb |
| 2017-05-03 | 5701-051-1306 | 5.16 ppb |
| 2017-05-03 | 5701-055-1427 | 4.31 ppb |
| 2017-05-08 | 5701-131-0931 | ND |
| 2017-05-15 | 5810-055-1508 | 4.00 ppb |
| 2017-05-15 | 5701-131-1055 | ND |
| 2017-05-22 | 5701-131-0850 | ND |
| 2017-05-24 | 5810-018-1052 | 2.90 ppb |
| 2017-05-30 | 5701-131-1300 | ND |
| 2017-06-06 | 5701-131-1530 | ND |
| 2017-06-08 | 5810-058-1152 | 3.20 ppb |
| 2017-06-12 | 5701-131-1015 | ND |
| 2017-06-12 | 5810-132-1026 | 2.80 ppb |
| 2017-06-20 | 5701-131-0922 | ND |
| 2017-06-27 | 5701-131-1135 | ND |
| 2017-07-05 | 5701-131-1440 | ND |
| 2017-07-10 | 5701-131-1415 | ND |
| 2017-07-17 | 5701-131-1324 | ND |
| 2017-07-18 | 5701-028-1322 | 8.38 ppb |
| 2017-07-24 | 5701-131-1237 | ND |
| 2017-07-25 | 5701-015-1155 | 4.49 ppb |
| 2017-08-01 | 5701-131-1330 | ND |
| 2017-08-07 | 5701-069-1000 | ND |
| 2017-08-07 | 5701-131-1010 | ND |
| 2017-08-10 | 5701-051-1208 | 5.01 ppb |
| 2017-08-14 | 5701-131-0927 | ND |
| 2017-08-15 | 5810-029-1255 | 5.20 ppb |
| 2017-08-21 | 5701-131-1335 | ND |
| 2017-08-28 | 5701-131-1204 | ND |
| 2017-09-05 | 5701-131-1255 | ND |
| 2017-09-11 | 5701-131-1120 | ND |
| 2017-09-18 | 5701-131-1152 | ND |
| 2017-09-25 | 5701-131-1530 | ND |
| 2017-10-02 | 5701-131-1340 | ND |
| 2017-10-10 | 5701-131-1045 | ND |
| 2017-10-16 | 5701-028-1142 | 6.72 ppb |
| 2017-10-16 | 5701-131-0929 | ND |
| 2017-10-23 | 5701-131-1119 | ND |
| 2017-10-30 | 5701-131-1340 | ND |
| 2017-11-06 | 5701-069-0947 | ND |
| 2017-11-06 | 5701-131-0956 | ND |
| 2017-11-08 | 5810-062-1455 | 3.90 ppb |
| 2017-11-13 | 5701-131-1235 | ND |
| 2017-11-16 | 5701-051-1150 | 5.53 ppb |
| 2017-11-20 | 5701-131-0930 | ND |
| 2017-11-28 | 5701-131-1248 | ND |
| 2017-12-04 | 5701-131-1114 | ND |
| 2017-12-11 | 5701-131-1035 | ND |
| 2017-12-13 | 5810-050-1050 | 3.70 ppb |
| 2017-12-18 | 5701-131-1305 | ND |
| 2017-12-26 | 5701-131-1108 | ND |
| 2018-01-02 | 5701-131-1253 | ND |
| 2018-01-04 | 5701-028-1108 | 6.04 ppb |
| 2018-01-09 | 5701-131-1010 | ND |
| 2018-01-16 | 5701-131-1101 | ND |
| 2018-01-22 | 5701-131-0940 | ND |
| 2018-01-29 | 5701-131-1502 | ND |
| 2018-02-05 | 5701-069-1450 | ND |
| 2018-02-05 | 5701-131-1500 | ND |
| 2018-02-12 | 5701-131-0952 | ND |
| 2018-02-20 | 5701-131-0920 | ND |
| 2018-02-26 | 5701-131-1109 | ND |
| 2018-03-05 | 5701-131-1510 | ND |
| 2018-03-12 | 5701-131-1140 | ND |
| 2018-03-19 | 5701-131-0955 | ND |
| 2018-03-26 | 5701-131-1058 | ND |
| 2018-04-02 | 5701-131-1015 | ND |
| 2018-04-03 | 5701-028-1055 | 6.14 ppb |
| 2018-04-09 | 5701-131-0925 | ND |
| 2018-04-11 | 5810-051-1335 | 5.10 ppb |
| 2018-04-12 | 5701-133-1005 | 3.38 ppb |
| 2018-04-16 | 5701-131-1525 | ND |
| 2018-04-24 | 5701-131-0920 | ND |
| 2018-04-30 | 5701-131-0955 | ND |
| 2018-05-01 | 5810-054-1330 | 5.80 ppb |
| 2018-05-03 | 5701-051-1545 | 5.34 ppb |
| 2018-05-07 | 5701-069-1200 | ND |
| 2018-05-07 | 5701-131-1210 | ND |
| 2018-05-15 | 5701-131-0902 | ND |
| 2018-05-21 | 5701-131-1020 | ND |
| 2018-05-30 | 5701-131-0850 | ND |
| 2018-06-04 | 5701-131-0940 | ND |
| 2018-06-11 | 5701-131-0940 | ND |
| 2018-06-18 | 5701-131-1005 | ND |
| 2018-06-25 | 5701-131-0930 | ND |
| 2018-07-02 | 5701-131-1155 | ND |
| 2018-07-09 | 5701-131-0945 | ND |
| 2018-07-17 | 5701-131-1255 | ND |
| 2018-07-18 | 5810-056-1225 | 4.10 ppb |
| 2018-07-23 | 5701-131-0917 | ND |
| 2018-07-30 | 5701-131-1544 | ND |
| 2018-08-06 | 5701-069-1250 | ND |
| 2018-08-06 | 5701-131-1310 | ND |
| 2018-08-13 | 5701-131-0945 | ND |
| 2018-08-15 | 5810-133-1335 | 3.00 ppb |
| 2018-08-20 | 5701-131-1045 | ND |
| 2018-08-23 | 5701-051-1130 | 5.06 ppb |
| 2018-08-27 | 5701-131-1107 | ND |
| 2018-08-28 | 5810-028-1130 | 6.10 ppb |
| 2018-09-04 | 5701-131-1108 | ND |
| 2018-09-24 | 5810-131-1250 | ND |
| 2018-10-01 | 5810-131-1215 | ND |
| 2018-10-08 | 5701-131-1003 | ND |
| 2018-10-09 | 5810-028-1205 | 5.90 ppb |
| 2018-10-09 | 5701-028-1209 | 5.69 ppb |
| 2018-10-15 | 5701-131-0930 | ND |
| 2018-10-22 | 5701-131-1400 | ND |
| 2018-10-29 | 5701-131-1030 | ND |
| 2018-11-05 | 5701-069-1050 | ND |
| 2018-11-05 | 5701-131-1120 | ND |
| 2018-11-13 | 5701-051-1325 | 6.52 ppb |
| 2018-11-13 | 5810-131-1000 | ND |
| 2018-11-19 | 5810-131-1120 | ND |
| 2018-11-26 | 5701-131-1030 | ND |
| 2018-12-03 | 5701-131-1320 | ND |
| 2018-12-10 | 5701-131-1225 | ND |
| 2018-12-18 | 5701-131-1335 | ND |
| 2018-12-26 | 5701-131-1110 | ND |
| 2019-01-02 | 5701-131-1020 | ND |
| 2019-01-07 | 5701-131-1004 | ND |
| 2019-01-10 | 5701-028-1131 | 5.89 ppb |
| 2019-01-14 | 5701-131-1055 | ND |
| 2019-01-22 | 5701-131-1040 | ND |
| 2019-01-28 | 5701-131-1140 | ND |
| 2019-02-04 | 5701-131-1054 | ND |
| 2019-02-05 | 5701-051-1339 | 5.43 ppb |
| 2019-02-11 | 5701-069-1030 | ND |
| 2019-02-11 | 5701-131-1045 | ND |
| 2019-02-13 | 5810-052-1252 | 4.10 ppb |
| 2019-02-13 | 5810-067-1349 | 2.60 ppb |
| 2019-02-19 | 5701-131-1242 | ND |
| 2019-02-25 | 5701-131-1015 | ND |
| 2019-03-04 | 5701-131-1215 | ND |
| 2019-03-11 | 5701-131-0940 | ND |
| 2019-03-18 | 5701-131-1341 | ND |
| 2019-03-25 | 5701-131-1337 | ND |
| 2019-04-01 | 5701-131-1103 | ND |
| 2019-04-08 | 5701-131-1340 | ND |
| 2019-04-15 | 5701-131-1010 | ND |
| 2019-04-22 | 5701-131-1118 | ND |
| 2019-04-23 | 5701-028-1445 | 6.53 ppb |
| 2019-04-29 | 5701-131-1145 | ND |
| 2019-05-06 | 5701-069-0935 | ND |
| 2019-05-06 | 5701-131-0935 | ND |
| 2019-05-08 | 5701-051-1155 | 6.19 ppb |
| 2019-05-13 | 5810-131-1023 | ND |
| 2019-05-20 | 5810-131-1024 | ND |
| 2019-05-28 | 5810-131-1110 | ND |
| 2019-06-03 | 5701-131-1020 | ND |
| 2019-06-10 | 5701-131-0846 | ND |
| 2019-06-17 | 5701-131-1015 | ND |
| 2019-06-24 | 5701-131-0941 | ND |
| 2019-07-01 | 5701-131-0915 | ND |
| 2019-07-08 | 5701-131-1350 | ND |
| 2019-07-10 | 5701-028-1320 | 6.74 ppb |
| 2019-07-17 | 5701-131-1445 | ND |
| 2019-07-22 | 5701-131-1433 | ND |
| 2019-07-29 | 5701-131-1222 | ND |
| 2019-08-05 | 5701-131-1105 | ND |
| 2019-08-06 | 5701-069-1020 | ND |
| 2019-08-12 | 5701-131-1128 | ND |
| 2019-08-19 | 5701-131-1310 | ND |
| 2019-08-26 | 5701-131-1105 | ND |
| 2019-09-03 | 5701-131-1130 | ND |
| 2019-09-09 | 5701-131-0909 | ND |
| 2019-09-16 | 5701-131-1150 | ND |
| 2019-09-23 | 5701-131-1127 | ND |
| 2019-09-30 | 5701-131-1330 | ND |
| 2019-10-02 | 5701-028-1251 | 6.14 ppb |
| 2019-10-07 | 5701-131-1337 | ND |
| 2019-10-14 | 5701-131-1340 | ND |
| 2019-10-21 | 5701-131-1254 | ND |
| 2019-10-28 | 5701-131-0915 | ND |
| 2019-11-04 | 5701-069-1118 | ND |
| 2019-11-04 | 5701-131-1130 | ND |
| 2019-11-12 | 5810-063-1115 | 4.10 ppb |
| 2019-11-12 | 5701-131-1023 | ND |
| 2019-11-18 | 5701-131-1313 | ND |
| 2019-11-25 | 5701-051-1000 | 5.57 ppb |
| 2019-11-25 | 5701-131-1202 | ND |
| 2019-12-02 | 5701-131-1158 | ND |
| 2019-12-09 | 5810-131-0925 | ND |
| 2019-12-16 | 5701-131-1132 | ND |
| 2019-12-22 | 5810-131-1315 | ND |
| 2019-12-30 | 5810-131-1055 | ND |