Arsenic
Irvine Ranch Water District
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.
533
Samples
0
Samples exceeding legal limit (MCL)
263
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.561 ppb | 54 | 11 | ND - 5.32 ppb |
| 2015 | 1.19 ppb | 74 | 36 | ND - 3.20 ppb |
| 2016 | 1.34 ppb | 104 | 55 | ND - 3.65 ppb |
| 2017 | 1.12 ppb | 104 | 46 | ND - 3.47 ppb |
| 2018 | 1.55 ppb | 97 | 65 | ND - 3.10 ppb |
| 2019 | 1.08 ppb | 100 | 50 | ND - 2.58 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 |
|---|---|---|
| 2014-01-11 | 4317-060-0825 | 4.45 ppb |
| 2014-01-13 | 4317-060-1230 | ND |
| 2014-01-20 | 4317-060-1411 | 5.32 ppb |
| 2014-01-27 | 4317-060-1335 | ND |
| 2014-01-27 | 4317-060-1340 | ND |
| 2014-02-03 | 4317-060-1323 | ND |
| 2014-02-10 | 4317-060-1230 | ND |
| 2014-02-18 | 4317-060-1237 | ND |
| 2014-02-24 | 4317-060-1304 | ND |
| 2014-03-04 | 4317-060-1335 | ND |
| 2014-03-11 | 4317-060-0823 | ND |
| 2014-03-19 | 4317-060-1339 | ND |
| 2014-03-24 | 4317-060-0818 | ND |
| 2014-03-31 | 4317-060-1252 | ND |
| 2014-04-09 | 4317-060-1205 | ND |
| 2014-04-14 | 4317-060-1014 | ND |
| 2014-04-21 | 4317-060-1445 | ND |
| 2014-04-30 | 4317-060-1329 | ND |
| 2014-05-05 | 4317-060-1218 | ND |
| 2014-05-12 | 4317-060-1359 | ND |
| 2014-05-19 | 4317-060-1357 | ND |
| 2014-05-27 | 4317-060-1410 | ND |
| 2014-06-02 | 4317-060-1155 | ND |
| 2014-06-09 | 4317-060-1252 | ND |
| 2014-06-16 | 4317-060-1459 | ND |
| 2014-06-23 | 4317-060-1303 | ND |
| 2014-06-30 | 4317-060-1403 | 2.07 ppb |
| 2014-07-08 | 4317-060-1340 | ND |
| 2014-07-14 | 4317-060-1348 | ND |
| 2014-07-21 | 4317-060-1323 | ND |
| 2014-07-29 | 4317-060-1130 | ND |
| 2014-08-06 | 4317-060-0955 | ND |
| 2014-08-11 | 4317-060-1500 | ND |
| 2014-08-12 | 4317-060-1430 | ND |
| 2014-08-18 | 4317-060-1251 | ND |
| 2014-08-25 | 4317-060-1410 | ND |
| 2014-09-02 | 4317-060-1423 | ND |
| 2014-09-08 | 4317-060-1430 | ND |
| 2014-09-15 | 4317-060-1411 | ND |
| 2014-09-23 | 4317-060-0805 | ND |
| 2014-09-30 | 4317-060-0950 | ND |
| 2014-10-06 | 4317-060-1314 | ND |
| 2014-10-15 | 4317-060-1400 | ND |
| 2014-10-20 | 4317-060-1250 | ND |
| 2014-10-27 | 4317-060-1352 | 2.97 ppb |
| 2014-11-04 | 4317-060-1405 | ND |
| 2014-11-10 | 4317-060-1150 | 2.31 ppb |
| 2014-11-17 | 4317-060-1212 | 2.18 ppb |
| 2014-11-24 | 4317-060-1340 | 2.28 ppb |
| 2014-12-03 | 4317-060-1006 | 2.13 ppb |
| 2014-12-09 | 4317-060-1025 | ND |
| 2014-12-15 | 4317-060-1052 | 2.18 ppb |
| 2014-12-23 | 4317-060-1251 | 2.16 ppb |
| 2014-12-30 | 4317-060-1406 | 2.24 ppb |
| 2015-01-05 | 4317-060-1400 | ND |
| 2015-01-12 | 4317-060-1409 | ND |
| 2015-01-19 | 4317-060-1403 | ND |
| 2015-01-26 | 4317-060-1326 | ND |
| 2015-02-03 | 4317-060-1208 | 2.01 ppb |
| 2015-02-10 | 4317-060-1003 | 2.32 ppb |
| 2015-02-17 | 4317-060-1219 | 2.21 ppb |
| 2015-02-23 | 4317-060-1240 | 2.12 ppb |
| 2015-03-02 | 4317-060-1232 | ND |
| 2015-03-09 | 4317-060-1134 | ND |
| 2015-03-16 | 4317-060-1320 | ND |
| 2015-03-23 | 4317-060-1304 | 2.23 ppb |
| 2015-03-30 | 4317-060-1358 | 2.18 ppb |
| 2015-04-01 | 4317-052-0828 | ND |
| 2015-04-06 | 4317-060-1433 | 2.52 ppb |
| 2015-04-07 | 4317-052-0849 | ND |
| 2015-04-13 | 4317-060-1430 | 2.73 ppb |
| 2015-04-14 | 4317-052-0839 | 3.20 ppb |
| 2015-04-20 | 4317-060-1500 | 2.71 ppb |
| 2015-04-21 | 4317-052-1112 | 2.40 ppb |
| 2015-04-27 | 4317-060-1444 | 2.88 ppb |
| 2015-04-28 | 4317-052-1126 | 2.68 ppb |
| 2015-07-06 | 4317-060-1424 | ND |
| 2015-07-07 | 4317-052-1022 | ND |
| 2015-07-15 | 4317-052-1100 | 2.31 ppb |
| 2015-07-15 | 4317-060-1422 | ND |
| 2015-07-20 | 4317-060-1419 | ND |
| 2015-07-21 | 4317-052-1103 | 2.66 ppb |
| 2015-07-29 | 4317-052-1106 | 2.92 ppb |
| 2015-07-30 | 4317-060-1022 | ND |
| 2015-08-05 | 4317-052-1138 | 2.20 ppb |
| 2015-08-06 | 4317-060-0855 | ND |
| 2015-08-10 | 4317-060-1240 | ND |
| 2015-08-11 | 4317-052-1205 | ND |
| 2015-08-17 | 4317-060-1248 | ND |
| 2015-08-18 | 4317-052-0838 | 2.19 ppb |
| 2015-08-24 | 4317-060-1237 | ND |
| 2015-08-25 | 4317-052-0827 | 2.37 ppb |
| 2015-08-31 | 4317-060-1235 | ND |
| 2015-09-02 | 4317-052-1056 | 2.21 ppb |
| 2015-09-09 | 4317-052-0807 | 2.77 ppb |
| 2015-09-09 | 4317-060-1335 | 2.28 ppb |
| 2015-09-14 | 4317-060-1338 | 2.31 ppb |
| 2015-09-16 | 4317-052-0824 | 2.16 ppb |
| 2015-09-21 | 4317-060-1408 | ND |
| 2015-09-22 | 4317-052-0817 | 2.64 ppb |
| 2015-09-28 | 4317-060-1330 | ND |
| 2015-09-29 | 4317-052-0752 | 2.43 ppb |
| 2015-10-05 | 4317-060-1137 | 2.10 ppb |
| 2015-10-06 | 4317-052-1126 | ND |
| 2015-10-12 | 4317-060-1146 | 2.16 ppb |
| 2015-10-13 | 4317-052-1146 | 2.64 ppb |
| 2015-10-20 | 4317-060-0850 | ND |
| 2015-10-21 | 4317-052-1125 | 2.10 ppb |
| 2015-10-27 | 4317-052-1125 | 2.12 ppb |
| 2015-10-27 | 4317-060-0740 | ND |
| 2015-11-04 | 4317-052-1256 | 2.75 ppb |
| 2015-11-04 | 4317-060-1151 | ND |
| 2015-11-09 | 4317-060-1340 | ND |
| 2015-11-10 | 4317-052-1338 | ND |
| 2015-11-16 | 4317-060-1210 | ND |
| 2015-11-17 | 4317-052-1051 | 2.60 ppb |
| 2015-11-23 | 4317-060-1225 | ND |
| 2015-11-24 | 4317-052-1308 | 2.65 ppb |
| 2015-11-30 | 4317-060-1240 | ND |
| 2015-12-02 | 4317-052-1140 | ND |
| 2015-12-07 | 4317-060-1255 | ND |
| 2015-12-09 | 4317-052-1045 | 2.17 ppb |
| 2015-12-14 | 4317-060-1035 | ND |
| 2015-12-15 | 4317-052-0936 | 3.07 ppb |
| 2015-12-21 | 4317-060-0824 | ND |
| 2015-12-22 | 4317-052-1020 | ND |
| 2015-12-28 | 4317-060-1220 | ND |
| 2015-12-29 | 4317-052-0857 | ND |
| 2016-01-04 | 4317-060-1359 | ND |
| 2016-01-05 | 4317-052-0941 | ND |
| 2016-01-11 | 4317-060-1300 | ND |
| 2016-01-13 | 4317-052-1049 | ND |
| 2016-01-19 | 4317-052-1011 | 2.28 ppb |
| 2016-01-19 | 4317-060-1057 | ND |
| 2016-01-25 | 4317-060-1407 | ND |
| 2016-01-27 | 4317-052-1037 | 2.54 ppb |
| 2016-02-01 | 4317-060-1320 | ND |
| 2016-02-02 | 4317-052-1306 | ND |
| 2016-02-08 | 4317-060-1210 | ND |
| 2016-02-09 | 4317-052-1124 | 2.55 ppb |
| 2016-02-16 | 4317-060-1238 | ND |
| 2016-02-18 | 4317-052-1006 | 2.50 ppb |
| 2016-02-22 | 4317-060-1315 | ND |
| 2016-02-25 | 4317-052-1220 | ND |
| 2016-02-29 | 4317-060-1238 | ND |
| 2016-03-02 | 4317-052-0847 | 2.22 ppb |
| 2016-03-07 | 4317-060-1257 | ND |
| 2016-03-08 | 4317-052-0820 | ND |
| 2016-03-14 | 4317-060-1223 | ND |
| 2016-03-15 | 4317-052-0825 | ND |
| 2016-03-21 | 4317-060-1346 | ND |
| 2016-03-22 | 4317-052-0837 | 2.14 ppb |
| 2016-03-28 | 4317-060-1400 | ND |
| 2016-03-30 | 4317-052-0840 | 3.51 ppb |
| 2016-04-04 | 4317-060-1051 | ND |
| 2016-04-06 | 4317-052-0843 | 2.53 ppb |
| 2016-04-11 | 4317-060-1223 | ND |
| 2016-04-12 | 4317-052-1007 | 2.94 ppb |
| 2016-04-18 | 4317-060-0909 | ND |
| 2016-04-19 | 4317-052-1136 | 3.28 ppb |
| 2016-04-25 | 4317-060-1052 | ND |
| 2016-04-26 | 4317-052-0829 | 2.01 ppb |
| 2016-05-02 | 4317-060-1012 | ND |
| 2016-05-03 | 4317-052-0922 | 2.65 ppb |
| 2016-05-09 | 4317-060-0850 | ND |
| 2016-05-10 | 4317-052-0935 | 2.79 ppb |
| 2016-05-16 | 4317-060-0955 | ND |
| 2016-05-18 | 4317-052-0854 | ND |
| 2016-05-23 | 4317-060-0938 | ND |
| 2016-05-25 | 4317-052-1017 | 2.26 ppb |
| 2016-05-31 | 4317-060-1430 | ND |
| 2016-06-01 | 4317-052-1014 | 2.63 ppb |
| 2016-06-07 | 4317-052-1020 | 2.59 ppb |
| 2016-06-07 | 4317-060-1036 | ND |
| 2016-06-14 | 4317-052-1040 | 2.28 ppb |
| 2016-06-14 | 4317-060-1350 | 2.51 ppb |
| 2016-06-20 | 4317-060-1232 | ND |
| 2016-06-22 | 4317-052-0916 | 2.89 ppb |
| 2016-06-27 | 4317-060-1330 | ND |
| 2016-06-28 | 4317-052-0839 | 2.48 ppb |
| 2016-07-05 | 4317-060-1108 | ND |
| 2016-07-07 | 4317-052-1131 | 2.52 ppb |
| 2016-07-11 | 4317-060-0849 | ND |
| 2016-07-13 | 4317-052-1130 | ND |
| 2016-07-18 | 4317-060-1200 | 2.07 ppb |
| 2016-07-20 | 4317-052-0847 | 2.33 ppb |
| 2016-07-25 | 4317-060-0841 | ND |
| 2016-07-26 | 4317-052-1105 | 2.07 ppb |
| 2016-08-02 | 4317-052-1230 | ND |
| 2016-08-02 | 4317-060-0958 | 2.73 ppb |
| 2016-08-08 | 4317-060-1213 | ND |
| 2016-08-10 | 4317-052-1142 | 2.37 ppb |
| 2016-08-16 | 4317-060-0836 | ND |
| 2016-08-17 | 4317-052-1137 | 2.31 ppb |
| 2016-08-22 | 4317-060-1222 | ND |
| 2016-08-24 | 4317-052-1109 | ND |
| 2016-08-31 | 4317-052-0800 | 2.60 ppb |
| 2016-08-31 | 4317-060-1140 | 3.34 ppb |
| 2016-09-06 | 4317-060-1222 | ND |
| 2016-09-07 | 4317-052-0853 | ND |
| 2016-09-12 | 4317-060-1248 | 2.23 ppb |
| 2016-09-14 | 4317-052-0922 | ND |
| 2016-09-19 | 4317-060-1242 | 2.24 ppb |
| 2016-09-21 | 4317-052-0923 | ND |
| 2016-09-26 | 4317-060-1240 | 2.80 ppb |
| 2016-09-27 | 4317-052-1225 | ND |
| 2016-10-04 | 4317-052-0828 | 2.41 ppb |
| 2016-10-04 | 4317-060-0923 | 2.16 ppb |
| 2016-10-10 | 4317-060-1355 | 2.25 ppb |
| 2016-10-11 | 4317-052-0805 | 2.27 ppb |
| 2016-10-17 | 4317-060-1327 | ND |
| 2016-10-18 | 4317-052-0830 | 2.21 ppb |
| 2016-10-24 | 4317-060-1320 | 3.29 ppb |
| 2016-10-25 | 4317-052-0830 | 3.65 ppb |
| 2016-11-01 | 4317-052-0815 | 2.61 ppb |
| 2016-11-01 | 4317-060-1345 | ND |
| 2016-11-07 | 4317-060-1005 | 2.39 ppb |
| 2016-11-08 | 4317-052-1020 | 2.28 ppb |
| 2016-11-15 | 4317-052-0755 | 2.99 ppb |
| 2016-11-16 | 4317-060-1342 | 2.26 ppb |
| 2016-11-21 | 4317-060-1350 | 2.48 ppb |
| 2016-11-22 | 4317-052-0800 | 2.25 ppb |
| 2016-11-29 | 4317-052-0810 | 2.54 ppb |
| 2016-11-29 | 4317-060-0808 | 2.12 ppb |
| 2016-12-06 | 4317-060-1019 | 2.90 ppb |
| 2016-12-07 | 4317-052-0845 | 2.73 ppb |
| 2016-12-12 | 4317-060-0856 | 3.08 ppb |
| 2016-12-13 | 4317-052-1230 | 2.35 ppb |
| 2016-12-20 | 4317-052-1123 | 2.07 ppb |
| 2016-12-20 | 4317-060-1348 | 2.41 ppb |
| 2016-12-27 | 4317-060-0830 | 2.72 ppb |
| 2016-12-28 | 4317-052-1103 | ND |
| 2017-01-03 | 4317-060-1032 | 3.27 ppb |
| 2017-01-04 | 4317-052-1030 | ND |
| 2017-01-11 | 4317-052-1055 | ND |
| 2017-01-12 | 4317-060-1241 | 3.14 ppb |
| 2017-01-16 | 4317-060-0958 | 3.13 ppb |
| 2017-01-17 | 4317-052-1059 | 2.49 ppb |
| 2017-01-25 | 4317-052-1412 | ND |
| 2017-01-25 | 4317-060-1348 | 2.82 ppb |
| 2017-01-30 | 4317-060-0948 | 2.98 ppb |
| 2017-01-31 | 4317-052-1240 | 2.74 ppb |
| 2017-02-06 | 4317-060-1237 | 2.70 ppb |
| 2017-02-07 | 4317-052-1018 | ND |
| 2017-02-13 | 4317-060-1210 | 2.65 ppb |
| 2017-02-14 | 4317-052-0947 | ND |
| 2017-02-21 | 4317-060-1220 | 2.47 ppb |
| 2017-02-22 | 4317-052-0937 | ND |
| 2017-02-28 | 4317-052-0953 | 2.65 ppb |
| 2017-03-01 | 4317-060-1325 | 3.08 ppb |
| 2017-03-06 | 4317-060-1400 | 2.76 ppb |
| 2017-03-07 | 4317-052-0820 | ND |
| 2017-03-13 | 4317-060-1400 | 2.54 ppb |
| 2017-03-14 | 4317-052-1211 | ND |
| 2017-03-20 | 4317-060-0855 | 2.72 ppb |
| 2017-03-21 | 4317-052-0956 | ND |
| 2017-03-27 | 4317-060-1408 | 2.81 ppb |
| 2017-03-29 | 4317-052-0830 | ND |
| 2017-04-04 | 4317-052-1315 | ND |
| 2017-04-05 | 4317-060-0945 | 3.14 ppb |
| 2017-04-10 | 4317-060-1328 | 2.83 ppb |
| 2017-04-12 | 4317-052-1047 | ND |
| 2017-04-18 | 4317-060-1158 | ND |
| 2017-04-19 | 4317-052-0815 | 2.15 ppb |
| 2017-04-24 | 4317-060-1235 | ND |
| 2017-04-25 | 4317-052-0840 | 2.00 ppb |
| 2017-05-02 | 4317-052-1144 | ND |
| 2017-05-06 | 4317-060-1335 | ND |
| 2017-05-09 | 4317-052-1135 | ND |
| 2017-05-09 | 4317-060-1015 | 2.38 ppb |
| 2017-05-15 | 4317-060-0922 | ND |
| 2017-05-16 | 4317-052-1258 | ND |
| 2017-05-23 | 4317-052-1257 | 2.07 ppb |
| 2017-05-23 | 4317-060-1310 | ND |
| 2017-05-30 | 4317-060-1320 | 2.17 ppb |
| 2017-06-01 | 4317-052-1016 | 2.24 ppb |
| 2017-06-07 | 4317-052-0830 | 2.33 ppb |
| 2017-06-07 | 4317-060-0837 | ND |
| 2017-06-12 | 4317-060-0823 | ND |
| 2017-06-13 | 4317-052-0955 | ND |
| 2017-06-20 | 4317-052-0810 | 2.97 ppb |
| 2017-06-20 | 4317-060-0804 | ND |
| 2017-06-27 | 4317-052-0822 | 3.47 ppb |
| 2017-06-27 | 4317-060-1000 | 2.15 ppb |
| 2017-07-03 | 4317-060-1330 | ND |
| 2017-07-05 | 4317-052-1127 | 2.65 ppb |
| 2017-07-10 | 4317-060-1313 | 2.06 ppb |
| 2017-07-11 | 4317-052-1200 | 2.22 ppb |
| 2017-07-17 | 4317-060-1245 | ND |
| 2017-07-18 | 4317-052-1008 | ND |
| 2017-07-24 | 4317-060-1310 | ND |
| 2017-07-25 | 4317-052-1132 | ND |
| 2017-08-01 | 4317-052-0905 | ND |
| 2017-08-01 | 4317-060-1046 | ND |
| 2017-08-07 | 4317-060-0935 | ND |
| 2017-08-09 | 4317-052-0825 | ND |
| 2017-08-15 | 4317-060-0926 | ND |
| 2017-08-16 | 4317-052-1026 | ND |
| 2017-08-21 | 4317-060-1340 | 2.18 ppb |
| 2017-08-22 | 4317-052-0743 | ND |
| 2017-08-29 | 4317-052-0811 | ND |
| 2017-08-29 | 4317-060-1012 | 2.40 ppb |
| 2017-09-05 | 4317-060-1300 | ND |
| 2017-09-06 | 4317-052-0830 | ND |
| 2017-09-12 | 4317-052-0818 | ND |
| 2017-09-13 | 4317-060-1243 | ND |
| 2017-09-18 | 4317-060-1320 | ND |
| 2017-09-19 | 4317-052-0939 | ND |
| 2017-09-25 | 4317-060-1300 | 2.14 ppb |
| 2017-09-27 | 4317-052-0830 | ND |
| 2017-10-02 | 4317-060-1429 | 2.00 ppb |
| 2017-10-04 | 4317-052-0745 | ND |
| 2017-10-09 | 4317-060-1415 | 2.11 ppb |
| 2017-10-10 | 4317-052-0830 | ND |
| 2017-10-17 | 4317-052-0922 | ND |
| 2017-10-17 | 4317-060-1142 | ND |
| 2017-10-24 | 4317-052-0955 | ND |
| 2017-10-24 | 4317-060-1250 | 2.17 ppb |
| 2017-10-30 | 4317-060-1400 | 2.05 ppb |
| 2017-11-01 | 4317-052-1028 | ND |
| 2017-11-07 | 4317-052-1132 | ND |
| 2017-11-08 | 4317-060-1257 | 3.03 ppb |
| 2017-11-13 | 4317-060-0910 | 3.13 ppb |
| 2017-11-14 | 4317-052-0837 | ND |
| 2017-11-20 | 4317-060-0945 | 2.37 ppb |
| 2017-11-21 | 4317-052-1101 | ND |
| 2017-11-27 | 4317-060-1152 | 2.33 ppb |
| 2017-11-29 | 4317-052-1305 | ND |
| 2017-12-04 | 4317-060-1343 | 2.29 ppb |
| 2017-12-06 | 4317-052-1300 | ND |
| 2017-12-11 | 4317-060-0823 | 2.43 ppb |
| 2017-12-12 | 4317-052-1225 | ND |
| 2017-12-18 | 4317-060-0816 | 2.15 ppb |
| 2017-12-19 | 4317-052-0927 | ND |
| 2017-12-26 | 4317-060-0942 | 2.29 ppb |
| 2017-12-28 | 4317-052-1125 | ND |
| 2018-01-02 | 4317-060-1300 | 2.43 ppb |
| 2018-01-03 | 4317-052-1020 | ND |
| 2018-01-09 | 4317-052-1050 | ND |
| 2018-01-09 | 4317-060-1255 | 2.17 ppb |
| 2018-01-15 | 4317-060-1235 | 2.08 ppb |
| 2018-01-16 | 4317-052-1010 | ND |
| 2018-01-22 | 4317-060-1220 | 2.60 ppb |
| 2018-01-24 | 4317-052-1205 | ND |
| 2018-01-30 | 4317-060-1225 | 2.48 ppb |
| 2018-02-01 | 4317-052-1415 | ND |
| 2018-02-06 | 4317-052-1408 | ND |
| 2018-02-14 | 4317-052-0835 | ND |
| 2018-02-21 | 4317-052-0822 | ND |
| 2018-02-27 | 4317-052-0825 | 2.06 ppb |
| 2018-03-05 | 4317-060-1433 | ND |
| 2018-03-06 | 4317-052-1045 | ND |
| 2018-03-12 | 4317-060-1331 | 2.51 ppb |
| 2018-03-13 | 4317-052-0951 | ND |
| 2018-03-19 | 4317-060-1312 | 2.60 ppb |
| 2018-03-20 | 4317-052-0913 | 2.08 ppb |
| 2018-03-26 | 4317-060-1306 | 2.50 ppb |
| 2018-03-27 | 4317-052-1022 | 2.02 ppb |
| 2018-04-03 | 4317-052-1100 | ND |
| 2018-04-03 | 4317-060-1000 | 2.57 ppb |
| 2018-04-09 | 4317-060-0930 | 2.00 ppb |
| 2018-04-11 | 4317-052-1055 | ND |
| 2018-04-17 | 4317-052-1233 | 2.17 ppb |
| 2018-04-19 | 4317-060-0950 | 2.11 ppb |
| 2018-04-25 | 4317-052-1349 | 2.14 ppb |
| 2018-04-25 | 4317-060-1300 | 2.47 ppb |
| 2018-04-30 | 4317-060-0911 | 2.32 ppb |
| 2018-05-01 | 4317-052-1036 | 2.26 ppb |
| 2018-05-08 | 4317-052-1220 | 2.75 ppb |
| 2018-05-09 | 4317-060-1147 | 2.84 ppb |
| 2018-05-16 | 4317-052-1110 | 2.29 ppb |
| 2018-05-16 | 4317-060-0910 | 3.10 ppb |
| 2018-05-23 | 4317-052-1052 | ND |
| 2018-05-24 | 4317-060-0943 | 2.41 ppb |
| 2018-05-31 | 4317-052-1118 | 2.45 ppb |
| 2018-05-31 | 4317-060-1051 | 2.16 ppb |
| 2018-06-05 | 4317-060-0945 | 2.19 ppb |
| 2018-06-07 | 4317-052-0858 | 2.26 ppb |
| 2018-06-11 | 4317-060-1254 | 2.11 ppb |
| 2018-06-13 | 4317-052-1023 | 2.41 ppb |
| 2018-06-18 | 4317-060-1035 | 2.09 ppb |
| 2018-06-19 | 4317-052-1020 | 2.29 ppb |
| 2018-06-25 | 4317-060-0847 | ND |
| 2018-06-26 | 4317-052-1002 | 2.59 ppb |
| 2018-07-02 | 4317-060-1302 | 2.51 ppb |
| 2018-07-03 | 4317-052-0852 | 2.09 ppb |
| 2018-07-10 | 4317-052-0902 | 2.11 ppb |
| 2018-07-17 | 4317-052-0835 | ND |
| 2018-07-24 | 4317-052-0929 | ND |
| 2018-08-01 | 4317-052-0915 | 2.02 ppb |
| 2018-08-01 | 4317-060-0935 | ND |
| 2018-08-08 | 4317-060-1015 | ND |
| 2018-08-09 | 4317-052-1233 | ND |
| 2018-08-13 | 4317-060-0936 | ND |
| 2018-08-16 | 4317-052-0905 | 2.11 ppb |
| 2018-08-20 | 4317-060-0940 | 2.11 ppb |
| 2018-08-22 | 4317-052-0848 | 2.44 ppb |
| 2018-08-27 | 4317-060-0807 | 2.21 ppb |
| 2018-08-29 | 4317-052-1058 | 2.53 ppb |
| 2018-09-05 | 4317-060-1328 | ND |
| 2018-09-06 | 4317-052-1140 | ND |
| 2018-09-10 | 4317-060-1320 | ND |
| 2018-09-12 | 4317-052-0922 | ND |
| 2018-09-17 | 4317-060-1342 | 2.07 ppb |
| 2018-09-18 | 4317-052-0937 | 2.12 ppb |
| 2018-09-25 | 4317-060-1126 | 2.50 ppb |
| 2018-09-27 | 4317-052-1117 | 2.12 ppb |
| 2018-10-02 | 4317-052-1138 | ND |
| 2018-10-02 | 4317-060-1030 | 2.67 ppb |
| 2018-10-08 | 4317-060-1133 | 2.25 ppb |
| 2018-10-09 | 4317-052-1200 | 2.28 ppb |
| 2018-10-16 | 4317-052-1127 | ND |
| 2018-10-19 | 4317-060-0902 | 2.03 ppb |
| 2018-10-23 | 4317-052-0940 | ND |
| 2018-10-23 | 4317-060-1000 | 2.16 ppb |
| 2018-10-30 | 4317-052-1204 | 2.24 ppb |
| 2018-10-31 | 4317-060-0945 | 2.56 ppb |
| 2018-11-05 | 4317-060-0847 | 2.14 ppb |
| 2018-11-06 | 4317-052-1120 | 2.10 ppb |
| 2018-11-12 | 4317-060-0900 | 2.40 ppb |
| 2018-11-13 | 4317-052-1203 | 2.29 ppb |
| 2018-11-19 | 4317-060-1010 | 2.49 ppb |
| 2018-11-20 | 4317-052-1009 | 2.02 ppb |
| 2018-11-26 | 4317-060-1015 | ND |
| 2018-11-27 | 4317-052-1131 | 2.41 ppb |
| 2018-12-03 | 4317-060-0957 | 2.80 ppb |
| 2018-12-04 | 4317-052-1119 | ND |
| 2018-12-10 | 4317-060-0810 | 2.51 ppb |
| 2018-12-11 | 4317-052-1000 | 2.32 ppb |
| 2018-12-18 | 4317-052-1115 | 2.10 ppb |
| 2018-12-18 | 4317-060-0832 | 2.05 ppb |
| 2018-12-26 | 4317-060-0711 | ND |
| 2018-12-27 | 4317-052-0930 | ND |
| 2019-01-02 | 4317-060-1200 | 2.10 ppb |
| 2019-01-03 | 4317-052-1349 | ND |
| 2019-01-07 | 4317-060-1225 | 2.21 ppb |
| 2019-01-08 | 4317-052-1236 | 2.14 ppb |
| 2019-01-14 | 4317-060-1258 | 2.20 ppb |
| 2019-01-16 | 4317-052-1306 | ND |
| 2019-01-21 | 4317-060-1205 | 2.58 ppb |
| 2019-01-22 | 4317-052-1211 | 2.45 ppb |
| 2019-01-29 | 9588-052-1241 | 2.10 ppb |
| 2019-01-29 | 9588-060-1105 | 2.00 ppb |
| 2019-02-04 | 9588-060-1037 | ND |
| 2019-02-12 | 4317-052-1215 | ND |
| 2019-02-20 | 4317-052-1227 | ND |
| 2019-02-26 | 4317-052-1138 | 2.05 ppb |
| 2019-03-04 | 4317-060-1236 | ND |
| 2019-03-06 | 4317-052-1129 | ND |
| 2019-03-12 | 4317-052-1004 | ND |
| 2019-03-12 | 4317-060-1353 | ND |
| 2019-03-18 | 4317-060-1232 | ND |
| 2019-03-19 | 4317-052-1146 | ND |
| 2019-03-25 | 4317-060-1247 | ND |
| 2019-03-27 | 4317-052-1254 | ND |
| 2019-04-02 | 4317-052-1200 | ND |
| 2019-04-02 | 4317-060-1232 | 2.10 ppb |
| 2019-04-08 | 4317-060-1109 | 2.06 ppb |
| 2019-04-09 | 4317-052-1049 | 2.00 ppb |
| 2019-04-16 | 4317-052-1030 | ND |
| 2019-04-16 | 4317-060-1035 | 2.33 ppb |
| 2019-04-23 | 4317-052-1003 | 2.11 ppb |
| 2019-04-23 | 4317-060-1030 | 2.25 ppb |
| 2019-04-29 | 4317-060-1325 | 2.36 ppb |
| 2019-05-01 | 4317-052-1313 | ND |
| 2019-05-07 | 4317-060-1010 | 2.00 ppb |
| 2019-05-08 | 4317-052-1048 | ND |
| 2019-05-13 | 4317-060-0909 | 2.01 ppb |
| 2019-05-15 | 4317-052-1303 | ND |
| 2019-05-20 | 4317-060-1100 | 2.08 ppb |
| 2019-05-22 | 4317-052-1240 | ND |
| 2019-05-28 | 4317-060-0908 | 2.21 ppb |
| 2019-05-29 | 4317-052-1009 | ND |
| 2019-06-04 | 4317-052-1217 | ND |
| 2019-06-04 | 4317-060-0845 | 2.28 ppb |
| 2019-06-10 | 4317-060-1257 | 2.14 ppb |
| 2019-06-11 | 4317-052-1349 | ND |
| 2019-06-17 | 4317-060-1235 | 2.11 ppb |
| 2019-06-18 | 4317-052-1409 | ND |
| 2019-06-25 | 4317-052-1357 | ND |
| 2019-06-25 | 4317-060-1401 | ND |
| 2019-07-02 | 4317-060-1025 | ND |
| 2019-07-03 | 4317-052-0939 | ND |
| 2019-07-08 | 4317-060-0811 | 2.09 ppb |
| 2019-07-09 | 4317-052-1323 | ND |
| 2019-07-16 | 4317-052-1253 | 2.02 ppb |
| 2019-07-16 | 4317-060-0911 | 2.32 ppb |
| 2019-07-22 | 4317-060-0905 | 2.36 ppb |
| 2019-07-23 | 4317-052-1237 | 2.08 ppb |
| 2019-07-30 | 4317-052-1232 | ND |
| 2019-07-31 | 4317-060-1400 | 2.31 ppb |
| 2019-08-06 | 4317-052-1212 | 2.00 ppb |
| 2019-08-06 | 4317-060-1418 | ND |
| 2019-08-12 | 4317-060-1342 | ND |
| 2019-08-13 | 4317-052-1313 | 2.00 ppb |
| 2019-08-20 | 4317-052-1245 | 2.00 ppb |
| 2019-08-20 | 4317-060-0828 | 2.29 ppb |
| 2019-08-26 | 4317-060-1414 | 2.32 ppb |
| 2019-08-28 | 4317-052-1355 | 2.03 ppb |
| 2019-09-03 | 4317-060-0938 | 2.14 ppb |
| 2019-09-04 | 4317-052-1335 | ND |
| 2019-09-09 | 4317-060-0925 | 2.06 ppb |
| 2019-09-11 | 4317-052-1054 | ND |
| 2019-09-16 | 4317-060-0959 | 2.21 ppb |
| 2019-09-18 | 4317-052-1220 | ND |
| 2019-09-23 | 4317-060-0929 | 2.24 ppb |
| 2019-09-25 | 4317-052-1111 | ND |
| 2019-10-01 | 4317-060-0950 | 2.15 ppb |
| 2019-10-02 | 4317-052-1332 | ND |
| 2019-10-07 | 4317-052-0913 | ND |
| 2019-10-08 | 4317-060-0958 | 2.00 ppb |
| 2019-10-14 | 4317-060-1023 | ND |
| 2019-10-16 | 4317-052-1111 | ND |
| 2019-10-21 | 4317-060-1012 | ND |
| 2019-10-23 | 4317-052-1330 | ND |
| 2019-10-28 | 4317-060-0855 | 2.26 ppb |
| 2019-10-30 | 4317-052-0912 | ND |
| 2019-11-04 | 4317-060-1004 | 2.06 ppb |
| 2019-11-07 | 4317-052-1028 | ND |
| 2019-11-11 | 4317-060-1056 | ND |
| 2019-11-12 | 4317-052-0931 | ND |
| 2019-11-19 | 4317-052-1315 | ND |
| 2019-11-20 | 4317-060-1149 | 2.19 ppb |
| 2019-11-26 | 4317-060-1329 | 2.06 ppb |
| 2019-12-02 | 4317-060-1221 | 2.05 ppb |
| 2019-12-04 | 4317-052-1035 | ND |
| 2019-12-09 | 4317-060-1332 | 2.49 ppb |
| 2019-12-13 | 4317-052-1049 | ND |
| 2019-12-16 | 4317-060-1011 | 2.41 ppb |
| 2019-12-17 | 4317-052-1321 | ND |
| 2019-12-23 | 4317-052-1114 | ND |
| 2019-12-23 | 4317-060-0935 | 2.14 ppb |
| 2019-12-30 | 4317-060-0809 | 2.22 ppb |