Arsenic
California Water Service (CWS) - Bakersfield
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.
586
Samples
1
Samples exceeding legal limit (MCL)
372
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 3.52 ppb | 84 | 68 | ND - 9.29 ppb |
| 2015 | 3.91 ppb | 91 | 77 | ND - 10.1 ppb |
| 2016 | 2.59 ppb | 88 | 59 | ND - 7.86 ppb |
| 2017 | 1.58 ppb | 77 | 36 | ND - 6.55 ppb |
| 2018 | 1.73 ppb | 114 | 62 | ND - 5.79 ppb |
| 2019 | 2.05 ppb | 132 | 70 | ND - 8.00 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 | 5810-026-1415 | ND |
| 2014-01-06 | 5701-055-1300 | 7.98 ppb |
| 2014-01-06 | 5701-250-1052 | 1.48 ppb |
| 2014-01-13 | 5701-250-1014 | 1.50 ppb |
| 2014-01-14 | 5810-002-1008 | ND |
| 2014-01-21 | 5701-250-1442 | 2.84 ppb |
| 2014-01-27 | 5701-250-1042 | 3.88 ppb |
| 2014-02-03 | 5701-250-1248 | 5.81 ppb |
| 2014-02-04 | 5810-009-0931 | ND |
| 2014-02-10 | 5701-250-1414 | 6.16 ppb |
| 2014-02-18 | 5701-250-1427 | 3.99 ppb |
| 2014-02-24 | 5701-250-0922 | 2.93 ppb |
| 2014-03-03 | 5701-143-1418 | 7.97 ppb |
| 2014-03-03 | 5701-250-1125 | 2.56 ppb |
| 2014-03-04 | 5810-253-0810 | ND |
| 2014-03-10 | 5701-250-1050 | 6.37 ppb |
| 2014-03-17 | 5701-250-0945 | 3.64 ppb |
| 2014-03-24 | 5701-131-1045 | 6.48 ppb |
| 2014-03-24 | 5701-163-1055 | 7.94 ppb |
| 2014-03-24 | 5701-250-1040 | 9.29 ppb |
| 2014-05-05 | 5701-250-0958 | 6.48 ppb |
| 2014-05-12 | 5701-250-1022 | 6.72 ppb |
| 2014-05-19 | 5701-250-1150 | 5.15 ppb |
| 2014-05-27 | 5701-250-0916 | 3.20 ppb |
| 2014-06-02 | 5701-250-1048 | 5.20 ppb |
| 2014-06-04 | 5701-131-0953 | 6.50 ppb |
| 2014-06-05 | 5810-005-1016 | ND |
| 2014-06-09 | 5701-250-1017 | 3.30 ppb |
| 2014-06-16 | 5701-250-0908 | 2.50 ppb |
| 2014-06-18 | 5701-163-1105 | 7.10 ppb |
| 2014-06-23 | 5701-250-1115 | 2.90 ppb |
| 2014-06-25 | 5810-018-1018 | ND |
| 2014-06-25 | 5810-020-0934 | ND |
| 2014-06-30 | 5810-021-1025 | ND |
| 2014-06-30 | 5701-250-0916 | 3.90 ppb |
| 2014-07-07 | 5806-011-1500 | ND |
| 2014-07-07 | 5701-055-1115 | 6.60 ppb |
| 2014-07-07 | 5701-250-1050 | 4.20 ppb |
| 2014-07-08 | 5701-005-1230 | 0.726 ppb |
| 2014-07-08 | 5701-091-1430 | 4.82 ppb |
| 2014-07-10 | 5806-031-1345 | ND |
| 2014-07-14 | 5701-250-0909 | 6.20 ppb |
| 2014-07-15 | 5701-129-1100 | 4.70 ppb |
| 2014-07-21 | 5701-250-1010 | 2.50 ppb |
| 2014-07-28 | 5701-250-0952 | 2.40 ppb |
| 2014-08-06 | 5806-024-1420 | ND |
| 2014-08-13 | 5806-015-1120 | ND |
| 2014-08-13 | 5701-250-1108 | 4.83 ppb |
| 2014-08-18 | 5701-250-1042 | 3.53 ppb |
| 2014-08-25 | 5701-250-1102 | 3.23 ppb |
| 2014-09-02 | 5701-250-0553 | 5.75 ppb |
| 2014-09-08 | 5701-250-1100 | 2.95 ppb |
| 2014-09-10 | 5701-129-1242 | 5.39 ppb |
| 2014-09-10 | 5701-143-1350 | 7.66 ppb |
| 2014-09-11 | 5701-131-1152 | 6.07 ppb |
| 2014-09-15 | 5701-250-1111 | 5.23 ppb |
| 2014-09-22 | 5701-250-0957 | 2.77 ppb |
| 2014-09-24 | 5701-143-1255 | 7.05 ppb |
| 2014-09-29 | 5701-250-0922 | 2.79 ppb |
| 2014-10-06 | 5701-006-1032 | 0.746 ppb |
| 2014-10-06 | 5701-055-0914 | 6.35 ppb |
| 2014-10-06 | 5701-250-0947 | 3.86 ppb |
| 2014-10-07 | 5701-091-1000 | 5.23 ppb |
| 2014-10-08 | 5701-050-0955 | 0.798 ppb |
| 2014-10-08 | 5806-050-1013 | ND |
| 2014-10-09 | 5806-004-1326 | ND |
| 2014-10-13 | 5701-250-0956 | 2.32 ppb |
| 2014-10-20 | 5806-006-1125 | ND |
| 2014-10-20 | 5701-250-0858 | 2.14 ppb |
| 2014-10-27 | 5701-250-0848 | 2.10 ppb |
| 2014-11-03 | 5701-250-1202 | 3.83 ppb |
| 2014-11-12 | 5701-250-1010 | 2.22 ppb |
| 2014-11-17 | 5701-250-0934 | 2.15 ppb |
| 2014-11-24 | 5701-250-0859 | 1.97 ppb |
| 2014-12-01 | 5701-250-1029 | 3.81 ppb |
| 2014-12-08 | 5701-143-1345 | 7.81 ppb |
| 2014-12-08 | 5701-163-1420 | 7.67 ppb |
| 2014-12-08 | 5701-250-0935 | 2.49 ppb |
| 2014-12-09 | 5701-129-1425 | 5.77 ppb |
| 2014-12-09 | 5701-131-1348 | 6.41 ppb |
| 2014-12-15 | 5701-250-1031 | 2.15 ppb |
| 2014-12-16 | 5810-003-2240 | ND |
| 2014-12-21 | 5701-250-0747 | 1.26 ppb |
| 2014-12-29 | 5701-250-1034 | 1.57 ppb |
| 2015-01-05 | 5701-250-1118 | 3.98 ppb |
| 2015-01-08 | 5701-072-1412 | 0.619 ppb |
| 2015-01-12 | 5701-055-1000 | 7.44 ppb |
| 2015-01-12 | 5701-091-1015 | 5.94 ppb |
| 2015-01-12 | 5701-250-1006 | 4.24 ppb |
| 2015-01-20 | 5701-250-1420 | 3.56 ppb |
| 2015-01-26 | 5701-250-1033 | 1.54 ppb |
| 2015-02-02 | 5701-250-1051 | 2.61 ppb |
| 2015-02-09 | 5701-250-1040 | 2.13 ppb |
| 2015-02-17 | 5701-250-0915 | 3.04 ppb |
| 2015-02-23 | 5701-250-1026 | 3.80 ppb |
| 2015-03-02 | 5701-143-1526 | 7.08 ppb |
| 2015-03-02 | 5701-250-1306 | 6.83 ppb |
| 2015-03-04 | 5806-051-1130 | ND |
| 2015-03-04 | 5806-072-1215 | ND |
| 2015-03-09 | 5701-250-0923 | 2.95 ppb |
| 2015-03-11 | 5701-131-1510 | 6.62 ppb |
| 2015-03-16 | 5701-250-1100 | 3.43 ppb |
| 2015-03-19 | 5806-253-0735 | 2.60 ppb |
| 2015-03-23 | 5701-250-1007 | 4.22 ppb |
| 2015-03-30 | 5701-250-1121 | 7.52 ppb |
| 2015-04-06 | 5701-250-0914 | 3.50 ppb |
| 2015-04-13 | 5701-250-1036 | 3.99 ppb |
| 2015-04-20 | 5806-053-1307 | ND |
| 2015-04-20 | 5701-250-1122 | 5.22 ppb |
| 2015-04-21 | 5806-038-1450 | ND |
| 2015-04-27 | 5701-250-0925 | 3.52 ppb |
| 2015-05-04 | 5701-055-1000 | 5.67 ppb |
| 2015-05-04 | 5701-250-1125 | 4.06 ppb |
| 2015-05-11 | 5806-096-1025 | ND |
| 2015-05-11 | 5806-105-1331 | ND |
| 2015-05-11 | 5806-156-0938 | 3.80 ppb |
| 2015-05-11 | 5701-250-0930 | 3.37 ppb |
| 2015-05-18 | 5810-250-1029 | ND |
| 2015-05-26 | 5701-250-0917 | 3.06 ppb |
| 2015-06-01 | 5701-250-0940 | 3.45 ppb |
| 2015-06-08 | 5701-250-1130 | 3.81 ppb |
| 2015-06-10 | 5701-143-1015 | 7.65 ppb |
| 2015-06-15 | 5701-250-0944 | 3.87 ppb |
| 2015-06-16 | 5701-129-1258 | 5.75 ppb |
| 2015-06-22 | 5701-250-1017 | 4.30 ppb |
| 2015-06-29 | 5701-250-0853 | 3.84 ppb |
| 2015-07-06 | 5701-250-1008 | 4.72 ppb |
| 2015-07-08 | 5701-055-1300 | 7.17 ppb |
| 2015-07-08 | 5806-059-1410 | ND |
| 2015-07-08 | 5806-068-1132 | ND |
| 2015-07-13 | 5701-250-1051 | 4.67 ppb |
| 2015-07-20 | 5701-250-0847 | 1.21 ppb |
| 2015-07-27 | 5701-250-1020 | 3.52 ppb |
| 2015-08-03 | 5701-250-1122 | 5.89 ppb |
| 2015-08-05 | 5806-099-1400 | 3.40 ppb |
| 2015-08-10 | 5806-098-1035 | 3.30 ppb |
| 2015-08-10 | 5701-250-0902 | 3.48 ppb |
| 2015-08-13 | 5806-160-0934 | 4.20 ppb |
| 2015-08-17 | 5701-250-1003 | 3.63 ppb |
| 2015-08-24 | 5701-250-1044 | 3.91 ppb |
| 2015-08-31 | 5701-250-0931 | 3.83 ppb |
| 2015-09-02 | 5701-143-0945 | 10.1 ppb |
| 2015-09-08 | 5701-250-0937 | 4.23 ppb |
| 2015-09-10 | 5806-092-1437 | ND |
| 2015-09-14 | 5701-250-1058 | 4.19 ppb |
| 2015-09-21 | 5701-250-1011 | 4.40 ppb |
| 2015-09-28 | 5701-250-0952 | 3.32 ppb |
| 2015-09-29 | 5701-091-1501 | 6.07 ppb |
| 2015-09-29 | 5701-129-1430 | 6.86 ppb |
| 2015-10-05 | 5806-079-1335 | ND |
| 2015-10-05 | 5806-091-1205 | 6.00 ppb |
| 2015-10-05 | 5701-250-1054 | 3.91 ppb |
| 2015-10-06 | 5701-055-1330 | 5.76 ppb |
| 2015-10-06 | 5806-058-1050 | ND |
| 2015-10-06 | 5701-091-1145 | 6.27 ppb |
| 2015-10-13 | 5701-250-0917 | 4.34 ppb |
| 2015-10-19 | 5701-250-0930 | 4.82 ppb |
| 2015-10-26 | 5701-250-1025 | 4.63 ppb |
| 2015-10-27 | 5806-056-1205 | ND |
| 2015-11-02 | 5701-250-1120 | 3.29 ppb |
| 2015-11-09 | 5701-250-0914 | 5.00 ppb |
| 2015-11-16 | 5701-250-1015 | 6.02 ppb |
| 2015-11-23 | 5701-250-0950 | 3.85 ppb |
| 2015-11-30 | 5701-250-1000 | 3.84 ppb |
| 2015-12-02 | 5701-129-1415 | 6.32 ppb |
| 2015-12-02 | 5701-131-1349 | 7.10 ppb |
| 2015-12-07 | 5701-143-1155 | 8.27 ppb |
| 2015-12-07 | 5701-250-1318 | 9.53 ppb |
| 2015-12-09 | 5806-106-1300 | ND |
| 2015-12-09 | 5806-163-1203 | 7.00 ppb |
| 2015-12-10 | 5806-094-1315 | 2.70 ppb |
| 2015-12-14 | 5701-250-0938 | 4.53 ppb |
| 2015-12-15 | 5806-108-1015 | 4.20 ppb |
| 2015-12-21 | 5701-250-1438 | 3.76 ppb |
| 2015-12-28 | 5701-250-1110 | 3.97 ppb |
| 2016-01-04 | 5806-106-0905 | ND |
| 2016-01-04 | 5806-107-0905 | ND |
| 2016-01-04 | 5701-250-1059 | 3.11 ppb |
| 2016-01-11 | 5701-250-1103 | 4.88 ppb |
| 2016-01-19 | 5701-250-0926 | 2.25 ppb |
| 2016-01-25 | 5701-250-1100 | 2.28 ppb |
| 2016-02-01 | 5701-250-1045 | 2.15 ppb |
| 2016-02-08 | 5701-250-1105 | ND |
| 2016-02-10 | 5806-122-1321 | ND |
| 2016-02-16 | 5701-250-0855 | 2.21 ppb |
| 2016-02-22 | 5701-250-1000 | 2.01 ppb |
| 2016-02-29 | 5701-250-1025 | ND |
| 2016-03-02 | 5701-143-2100 | 5.02 ppb |
| 2016-03-07 | 5701-250-1105 | 2.33 ppb |
| 2016-03-14 | 5701-250-1001 | ND |
| 2016-03-16 | 5806-253-1025 | 2.00 ppb |
| 2016-03-20 | 5701-250-1150 | 2.56 ppb |
| 2016-03-28 | 5701-250-1215 | ND |
| 2016-04-04 | 5701-250-1021 | 3.73 ppb |
| 2016-04-11 | 5701-250-1145 | ND |
| 2016-04-18 | 5701-250-1211 | 7.86 ppb |
| 2016-04-25 | 5701-250-1201 | ND |
| 2016-05-02 | 5701-250-1230 | 7.00 ppb |
| 2016-05-04 | 5806-124-1235 | 4.30 ppb |
| 2016-05-05 | 5806-118-1350 | ND |
| 2016-05-09 | 5701-250-1200 | 3.03 ppb |
| 2016-05-16 | 5701-250-1224 | 3.28 ppb |
| 2016-05-20 | 5806-110-1350 | ND |
| 2016-05-20 | 5806-126-1250 | ND |
| 2016-05-23 | 5701-250-1218 | ND |
| 2016-05-31 | 5701-250-0930 | ND |
| 2016-06-06 | 5701-250-1004 | 3.13 ppb |
| 2016-06-08 | 5806-148-1230 | 2.30 ppb |
| 2016-06-13 | 5701-250-1000 | ND |
| 2016-06-15 | 5806-131-1045 | 6.60 ppb |
| 2016-06-15 | 5701-131-1100 | 6.09 ppb |
| 2016-06-16 | 5701-055-1015 | 5.27 ppb |
| 2016-06-16 | 5806-055-1025 | 6.40 ppb |
| 2016-06-17 | 5806-151-1015 | 5.50 ppb |
| 2016-06-20 | 5701-143-1530 | 6.30 ppb |
| 2016-06-20 | 5701-250-1025 | ND |
| 2016-06-27 | 5701-250-1215 | ND |
| 2016-07-06 | 5701-250-0938 | ND |
| 2016-07-11 | 5701-250-0859 | ND |
| 2016-07-14 | 5806-109-1200 | 2.70 ppb |
| 2016-07-18 | 5701-055-1134 | 6.33 ppb |
| 2016-07-18 | 5701-250-1016 | 2.61 ppb |
| 2016-07-25 | 5701-250-1023 | 2.80 ppb |
| 2016-08-01 | 5701-250-0940 | 2.78 ppb |
| 2016-08-08 | 5806-149-1240 | 7.40 ppb |
| 2016-08-08 | 5806-154-0945 | 3.00 ppb |
| 2016-08-10 | 5701-250-0856 | 2.49 ppb |
| 2016-08-15 | 5806-125-1013 | ND |
| 2016-08-15 | 5701-250-1019 | 2.85 ppb |
| 2016-08-18 | 5806-069-1051 | 2.40 ppb |
| 2016-08-18 | 5806-150-1153 | ND |
| 2016-08-22 | 5701-250-1150 | 2.72 ppb |
| 2016-08-29 | 5701-250-1016 | 3.12 ppb |
| 2016-09-06 | 5701-250-1428 | 2.35 ppb |
| 2016-09-07 | 5806-119-1120 | ND |
| 2016-09-07 | 5701-143-1130 | 5.36 ppb |
| 2016-09-08 | 5806-052-1120 | ND |
| 2016-09-12 | 5806-143-1015 | 5.50 ppb |
| 2016-09-12 | 5806-146-1055 | ND |
| 2016-09-12 | 5701-250-0952 | 2.68 ppb |
| 2016-09-19 | 5701-250-0928 | 2.00 ppb |
| 2016-09-22 | 5806-117-0930 | ND |
| 2016-09-26 | 5701-250-1025 | 2.09 ppb |
| 2016-10-03 | 5701-250-1032 | 3.30 ppb |
| 2016-10-11 | 5701-129-1509 | 5.72 ppb |
| 2016-10-11 | 5701-129-1510 | 5.74 ppb |
| 2016-10-11 | 5806-129-1519 | 5.90 ppb |
| 2016-10-11 | 5701-250-1132 | 2.46 ppb |
| 2016-10-17 | 5701-250-0947 | ND |
| 2016-10-24 | 5701-250-0915 | ND |
| 2016-10-31 | 5701-250-0920 | ND |
| 2016-11-07 | 5701-250-1110 | 2.60 ppb |
| 2016-11-14 | 5701-250-0920 | 2.46 ppb |
| 2016-11-21 | 5701-250-0912 | ND |
| 2016-11-28 | 5701-250-0955 | 2.01 ppb |
| 2016-12-05 | 5701-250-1022 | 2.87 ppb |
| 2016-12-07 | 5701-129-1120 | 6.17 ppb |
| 2016-12-07 | 5701-131-1030 | 6.41 ppb |
| 2016-12-12 | 5701-143-0835 | 5.56 ppb |
| 2016-12-12 | 5701-250-1015 | 3.00 ppb |
| 2016-12-14 | 5701-091-1400 | 6.69 ppb |
| 2016-12-19 | 5701-250-1250 | 2.11 ppb |
| 2016-12-28 | 5701-250-0948 | 2.09 ppb |
| 2017-01-03 | 5701-250-1012 | 2.26 ppb |
| 2017-01-09 | 5701-250-0912 | 3.58 ppb |
| 2017-01-10 | 5806-002-1025 | ND |
| 2017-01-17 | 5701-250-0820 | ND |
| 2017-01-19 | 5806-026-0949 | ND |
| 2017-01-23 | 5701-250-1240 | ND |
| 2017-01-30 | 5701-250-0916 | ND |
| 2017-02-06 | 5701-250-0920 | ND |
| 2017-02-13 | 5701-250-0920 | ND |
| 2017-02-21 | 5701-250-0825 | ND |
| 2017-02-27 | 5701-250-0900 | 3.46 ppb |
| 2017-03-06 | 5701-250-1028 | ND |
| 2017-03-13 | 5701-143-0825 | 5.01 ppb |
| 2017-03-13 | 5701-250-0930 | ND |
| 2017-03-14 | 5806-253-0850 | ND |
| 2017-03-20 | 5701-250-1127 | ND |
| 2017-03-23 | 5806-021-0904 | ND |
| 2017-03-27 | 5701-250-0910 | ND |
| 2017-03-29 | 5701-131-1146 | 5.81 ppb |
| 2017-04-03 | 5701-250-0933 | 3.66 ppb |
| 2017-04-10 | 5806-009-1125 | ND |
| 2017-04-10 | 5701-250-1215 | 2.33 ppb |
| 2017-04-17 | 5701-250-1033 | ND |
| 2017-04-19 | 5806-004-1145 | ND |
| 2017-04-24 | 5701-250-0913 | ND |
| 2017-05-01 | 5701-250-0935 | ND |
| 2017-05-08 | 5701-250-0955 | 2.61 ppb |
| 2017-05-18 | 5701-250-0945 | ND |
| 2017-05-22 | 5701-250-1003 | 3.22 ppb |
| 2017-05-30 | 5701-250-0917 | ND |
| 2017-06-05 | 5701-250-0910 | ND |
| 2017-06-07 | 5701-143-1340 | 5.50 ppb |
| 2017-06-12 | 5806-050-1135 | ND |
| 2017-06-12 | 5701-250-1035 | ND |
| 2017-06-13 | 5701-005-1135 | ND |
| 2017-06-19 | 5806-018-0936 | ND |
| 2017-06-19 | 5701-250-1044 | ND |
| 2017-06-20 | 5806-005-1035 | ND |
| 2017-06-20 | 5806-015-1019 | 2.00 ppb |
| 2017-06-26 | 5806-006-0947 | ND |
| 2017-06-26 | 5701-250-1040 | ND |
| 2017-06-28 | 5701-131-0953 | 6.55 ppb |
| 2017-07-05 | 5701-250-1002 | 3.58 ppb |
| 2017-07-10 | 5701-250-0930 | 4.02 ppb |
| 2017-07-12 | 5806-003-0741 | ND |
| 2017-07-17 | 5701-250-0903 | ND |
| 2017-07-18 | 5806-031-1100 | 2.90 ppb |
| 2017-07-24 | 5701-250-0917 | ND |
| 2017-07-31 | 5701-250-0847 | 2.25 ppb |
| 2017-08-07 | 5701-250-1156 | 2.65 ppb |
| 2017-08-14 | 5701-250-0905 | 2.50 ppb |
| 2017-08-21 | 5701-250-0855 | 2.38 ppb |
| 2017-08-23 | 5806-024-1337 | ND |
| 2017-08-28 | 5701-250-1105 | 3.59 ppb |
| 2017-09-05 | 5701-250-0855 | 3.00 ppb |
| 2017-09-06 | 5701-131-0926 | 6.51 ppb |
| 2017-09-11 | 5701-143-1105 | 5.43 ppb |
| 2017-09-11 | 5701-250-0945 | 2.24 ppb |
| 2017-09-18 | 5701-250-0925 | 2.20 ppb |
| 2017-09-25 | 5701-250-0853 | 2.32 ppb |
| 2017-10-02 | 5701-250-0925 | 2.37 ppb |
| 2017-10-10 | 5701-250-0830 | 2.34 ppb |
| 2017-10-16 | 5701-250-1020 | 3.61 ppb |
| 2017-10-23 | 5701-250-0845 | 2.15 ppb |
| 2017-10-30 | 5701-250-0915 | ND |
| 2017-11-06 | 5806-011-1027 | ND |
| 2017-11-06 | 5701-250-1000 | ND |
| 2017-11-13 | 5701-250-0937 | ND |
| 2017-11-20 | 5701-250-1120 | 2.02 ppb |
| 2017-11-29 | 5701-250-1215 | 2.16 ppb |
| 2017-12-04 | 5701-250-0905 | ND |
| 2017-12-06 | 5701-143-1145 | 5.26 ppb |
| 2017-12-11 | 5701-250-0855 | 2.02 ppb |
| 2017-12-13 | 5701-129-1104 | 6.13 ppb |
| 2017-12-18 | 5701-250-1115 | 2.04 ppb |
| 2017-12-26 | 5701-250-0900 | ND |
| 2017-12-28 | 5806-020-1010 | ND |
| 2018-01-02 | 5701-250-0937 | ND |
| 2018-01-08 | 5701-250-1020 | ND |
| 2018-01-16 | 5701-250-1420 | ND |
| 2018-01-22 | 5701-250-1020 | 2.22 ppb |
| 2018-01-25 | 5701-267-1426 | ND |
| 2018-01-29 | 5701-250-1010 | ND |
| 2018-02-06 | 5701-250-1015 | ND |
| 2018-02-12 | 5701-250-0910 | ND |
| 2018-02-20 | 5701-250-0835 | 2.03 ppb |
| 2018-02-26 | 5701-250-0915 | ND |
| 2018-03-05 | 5701-250-0850 | ND |
| 2018-03-12 | 5701-250-1010 | 2.18 ppb |
| 2018-03-14 | 5806-051-1140 | ND |
| 2018-03-14 | 5806-072-1250 | ND |
| 2018-03-14 | 5701-143-1135 | 5.32 ppb |
| 2018-03-19 | 5701-250-0950 | 2.08 ppb |
| 2018-03-22 | 5806-253-0800 | ND |
| 2018-03-26 | 5701-250-1052 | 2.21 ppb |
| 2018-04-02 | 5701-250-1401 | 2.32 ppb |
| 2018-04-09 | 5701-250-0955 | 2.02 ppb |
| 2018-04-12 | 5701-267-1523 | ND |
| 2018-04-16 | 5806-156-1057 | 5.00 ppb |
| 2018-04-16 | 5701-250-1010 | 2.16 ppb |
| 2018-04-17 | 5806-053-1400 | ND |
| 2018-04-17 | 5806-105-0930 | ND |
| 2018-04-23 | 5806-094-1107 | 2.40 ppb |
| 2018-04-23 | 5701-250-0905 | 2.02 ppb |
| 2018-04-25 | 5806-096-0930 | ND |
| 2018-04-26 | 5806-038-1145 | ND |
| 2018-04-30 | 5701-250-1100 | ND |
| 2018-05-07 | 5701-250-1208 | 3.60 ppb |
| 2018-05-14 | 5701-250-1046 | 3.12 ppb |
| 2018-05-16 | 5701-267-1037 | ND |
| 2018-05-21 | 5701-250-1115 | ND |
| 2018-05-21 | 5701-267-1025 | ND |
| 2018-05-29 | 5701-250-1043 | ND |
| 2018-05-29 | 5701-267-1059 | ND |
| 2018-06-07 | 5701-267-0855 | ND |
| 2018-06-08 | 5701-143-1120 | 5.06 ppb |
| 2018-06-08 | 5701-250-1448 | 2.19 ppb |
| 2018-06-11 | 5701-267-0851 | ND |
| 2018-06-12 | 5701-250-0940 | 2.68 ppb |
| 2018-06-15 | 9590-026-0945 | ND |
| 2018-06-18 | 5701-250-1411 | 2.95 ppb |
| 2018-06-18 | 5701-267-0908 | ND |
| 2018-06-25 | 5701-091-0909 | 5.72 ppb |
| 2018-06-25 | 5701-250-1055 | ND |
| 2018-06-26 | 5701-267-0940 | ND |
| 2018-07-02 | 5701-250-1205 | ND |
| 2018-07-02 | 5701-267-0725 | ND |
| 2018-07-09 | 5701-250-0952 | 2.82 ppb |
| 2018-07-09 | 5701-267-0946 | ND |
| 2018-07-10 | 5701-091-1005 | 5.79 ppb |
| 2018-07-11 | 5806-068-1118 | 3.20 ppb |
| 2018-07-11 | 5806-092-1400 | ND |
| 2018-07-11 | 5806-106-1431 | ND |
| 2018-07-12 | 5806-056-1444 | 2.20 ppb |
| 2018-07-16 | 5701-250-1008 | ND |
| 2018-07-17 | 5701-267-0845 | ND |
| 2018-07-23 | 5701-250-0902 | 3.17 ppb |
| 2018-07-23 | 5701-267-0817 | ND |
| 2018-07-24 | 5806-059-1414 | ND |
| 2018-07-24 | 5806-091-0850 | 5.40 ppb |
| 2018-07-30 | 5701-250-0902 | 3.63 ppb |
| 2018-07-30 | 5701-267-0809 | ND |
| 2018-08-06 | 5701-250-1207 | 3.80 ppb |
| 2018-08-07 | 5701-267-1122 | ND |
| 2018-08-13 | 5806-099-0950 | 4.30 ppb |
| 2018-08-13 | 5701-250-1158 | 2.20 ppb |
| 2018-08-13 | 5701-267-0927 | ND |
| 2018-08-20 | 5701-250-1055 | 2.58 ppb |
| 2018-08-20 | 5701-267-0854 | ND |
| 2018-08-21 | 5806-098-0942 | 3.40 ppb |
| 2018-08-27 | 5806-160-1221 | 4.50 ppb |
| 2018-08-27 | 5701-250-1101 | 2.94 ppb |
| 2018-08-27 | 5701-267-0914 | ND |
| 2018-09-05 | 5701-267-0915 | ND |
| 2018-09-06 | 5701-250-1319 | 2.26 ppb |
| 2018-09-10 | 5701-143-1032 | 5.04 ppb |
| 2018-09-10 | 5701-250-1201 | ND |
| 2018-09-13 | 5806-058-0955 | 2.00 ppb |
| 2018-09-20 | 5806-069-1025 | 2.70 ppb |
| 2018-09-24 | 5810-250-1515 | 2.20 ppb |
| 2018-09-24 | 5810-267-0836 | ND |
| 2018-10-01 | 5810-250-1234 | 3.10 ppb |
| 2018-10-01 | 5810-267-0909 | 2.50 ppb |
| 2018-10-04 | 5701-091-1010 | 4.87 ppb |
| 2018-10-08 | 5701-250-1120 | 2.47 ppb |
| 2018-10-10 | 5701-267-0854 | ND |
| 2018-10-15 | 5701-250-1100 | 2.13 ppb |
| 2018-10-15 | 5701-267-0951 | ND |
| 2018-10-22 | 5701-250-1031 | 3.53 ppb |
| 2018-10-22 | 5701-267-0933 | 2.51 ppb |
| 2018-10-25 | 5806-058-1144 | ND |
| 2018-10-29 | 5701-250-0944 | ND |
| 2018-10-29 | 5701-267-1116 | 2.74 ppb |
| 2018-11-05 | 5701-250-1102 | 3.10 ppb |
| 2018-11-05 | 5701-267-0921 | 2.95 ppb |
| 2018-11-13 | 5810-267-0920 | 3.30 ppb |
| 2018-11-14 | 5810-250-1001 | 2.70 ppb |
| 2018-11-16 | 5806-048-1128 | ND |
| 2018-11-19 | 5810-250-1059 | ND |
| 2018-11-19 | 5810-267-0913 | 3.00 ppb |
| 2018-11-26 | 5701-250-1018 | 2.81 ppb |
| 2018-11-26 | 5701-267-0929 | 3.42 ppb |
| 2018-12-03 | 5701-250-1030 | 2.28 ppb |
| 2018-12-03 | 5701-267-0859 | 3.41 ppb |
| 2018-12-10 | 5701-143-1500 | 5.66 ppb |
| 2018-12-10 | 5701-250-1411 | 2.85 ppb |
| 2018-12-10 | 5701-267-0942 | 3.99 ppb |
| 2018-12-17 | 5701-250-1002 | 2.56 ppb |
| 2018-12-17 | 5701-267-0855 | 3.80 ppb |
| 2018-12-26 | 5701-250-0938 | 2.69 ppb |
| 2018-12-26 | 5701-267-0910 | 4.02 ppb |
| 2019-01-02 | 5701-250-1002 | 2.04 ppb |
| 2019-01-03 | 5701-267-1135 | ND |
| 2019-01-07 | 5701-091-0910 | 6.00 ppb |
| 2019-01-07 | 5701-250-0954 | ND |
| 2019-01-09 | 5806-107-1109 | ND |
| 2019-01-09 | 5701-267-1158 | ND |
| 2019-01-14 | 5701-250-0955 | 3.63 ppb |
| 2019-01-14 | 5701-267-1437 | ND |
| 2019-01-22 | 5701-250-0905 | ND |
| 2019-01-22 | 5701-267-1035 | ND |
| 2019-01-28 | 5701-250-1010 | ND |
| 2019-01-28 | 5701-267-1035 | ND |
| 2019-02-04 | 5701-250-1118 | ND |
| 2019-02-05 | 5701-267-1018 | ND |
| 2019-02-11 | 5701-267-1112 | ND |
| 2019-02-12 | 5701-250-1407 | ND |
| 2019-02-13 | 5806-122-1021 | ND |
| 2019-02-19 | 5701-250-0932 | ND |
| 2019-02-19 | 5701-267-1047 | ND |
| 2019-02-25 | 5701-250-1035 | 2.03 ppb |
| 2019-02-25 | 5701-267-1037 | 2.02 ppb |
| 2019-03-04 | 5701-250-1043 | ND |
| 2019-03-05 | 5701-143-1058 | 5.51 ppb |
| 2019-03-05 | 5701-267-1135 | ND |
| 2019-03-11 | 5701-250-1105 | ND |
| 2019-03-11 | 5701-267-0923 | ND |
| 2019-03-18 | 5701-250-1015 | ND |
| 2019-03-18 | 5701-267-1053 | ND |
| 2019-03-25 | 5701-250-0945 | ND |
| 2019-03-25 | 5701-267-1025 | ND |
| 2019-03-26 | 5806-253-1055 | ND |
| 2019-04-01 | 5701-250-1120 | 2.12 ppb |
| 2019-04-01 | 5701-267-0908 | 2.63 ppb |
| 2019-04-08 | 5701-250-1000 | 4.84 ppb |
| 2019-04-08 | 5701-267-0954 | 2.28 ppb |
| 2019-04-09 | 5701-091-0845 | 6.22 ppb |
| 2019-04-15 | 5701-250-0935 | ND |
| 2019-04-15 | 5701-267-0915 | 2.46 ppb |
| 2019-04-22 | 5701-250-1250 | ND |
| 2019-04-23 | 5701-267-0827 | 2.50 ppb |
| 2019-04-29 | 5701-250-0940 | ND |
| 2019-04-30 | 5701-267-0920 | 2.98 ppb |
| 2019-05-06 | 5701-250-0945 | ND |
| 2019-05-06 | 5701-267-0917 | 2.70 ppb |
| 2019-05-13 | 5810-250-0940 | ND |
| 2019-05-13 | 5810-267-0844 | 2.90 ppb |
| 2019-05-14 | 5806-125-0840 | ND |
| 2019-05-14 | 5806-126-0920 | ND |
| 2019-05-15 | 5806-118-1330 | ND |
| 2019-05-20 | 5810-250-0900 | ND |
| 2019-05-22 | 5810-267-0807 | 2.60 ppb |
| 2019-05-28 | 5810-250-0830 | ND |
| 2019-05-29 | 5806-110-1130 | ND |
| 2019-05-29 | 5806-124-0930 | 5.40 ppb |
| 2019-05-29 | 5810-267-1122 | 2.70 ppb |
| 2019-06-03 | 5701-250-0830 | ND |
| 2019-06-03 | 5701-267-1007 | 3.12 ppb |
| 2019-06-10 | 5701-143-1135 | 7.70 ppb |
| 2019-06-10 | 5806-148-1100 | 3.10 ppb |
| 2019-06-10 | 5806-151-1059 | 7.00 ppb |
| 2019-06-10 | 5701-250-1040 | ND |
| 2019-06-10 | 5701-267-0904 | 4.56 ppb |
| 2019-06-17 | 5701-250-1005 | ND |
| 2019-06-17 | 5701-267-0840 | 4.20 ppb |
| 2019-06-24 | 5701-250-0925 | ND |
| 2019-06-25 | 5701-267-0917 | 3.92 ppb |
| 2019-06-26 | 5701-143-1035 | 6.60 ppb |
| 2019-07-01 | 5701-250-0915 | ND |
| 2019-07-01 | 5701-267-0827 | 3.64 ppb |
| 2019-07-02 | 5701-091-1030 | 5.86 ppb |
| 2019-07-08 | 5701-250-1017 | 2.11 ppb |
| 2019-07-09 | 5701-267-0826 | 3.96 ppb |
| 2019-07-15 | 5701-250-0942 | ND |
| 2019-07-17 | 5701-267-0837 | 4.13 ppb |
| 2019-07-18 | 5806-109-0955 | 2.80 ppb |
| 2019-07-22 | 5701-250-0940 | ND |
| 2019-07-22 | 5701-267-0824 | 4.54 ppb |
| 2019-07-29 | 5701-250-0915 | 3.49 ppb |
| 2019-07-30 | 5701-267-0959 | 4.23 ppb |
| 2019-08-05 | 5701-250-1016 | 4.47 ppb |
| 2019-08-05 | 5701-267-0853 | 4.38 ppb |
| 2019-08-12 | 5806-117-1130 | ND |
| 2019-08-12 | 5806-149-1054 | 8.00 ppb |
| 2019-08-12 | 5806-154-1259 | 3.40 ppb |
| 2019-08-12 | 5701-250-1010 | ND |
| 2019-08-12 | 5701-267-1016 | 4.16 ppb |
| 2019-08-19 | 5701-250-0935 | 2.29 ppb |
| 2019-08-19 | 5701-267-0950 | 4.25 ppb |
| 2019-08-26 | 5701-250-1301 | 2.45 ppb |
| 2019-08-26 | 5701-267-0846 | 4.16 ppb |
| 2019-09-03 | 5701-250-0945 | ND |
| 2019-09-03 | 5701-267-1001 | 5.29 ppb |
| 2019-09-04 | 5701-143-0850 | 5.35 ppb |
| 2019-09-09 | 5701-250-1145 | 2.41 ppb |
| 2019-09-10 | 5806-146-0836 | ND |
| 2019-09-11 | 5806-143-0920 | 5.30 ppb |
| 2019-09-16 | 5701-250-0945 | 2.22 ppb |
| 2019-09-23 | 5701-250-1042 | 2.15 ppb |
| 2019-09-24 | 5806-055-1330 | 5.80 ppb |
| 2019-09-30 | 5701-250-0920 | ND |
| 2019-10-07 | 5701-055-0915 | 6.25 ppb |
| 2019-10-07 | 5701-091-1000 | 5.46 ppb |
| 2019-10-07 | 5701-250-0950 | ND |
| 2019-10-14 | 5701-250-1404 | 2.60 ppb |
| 2019-10-16 | 5806-052-1150 | ND |
| 2019-10-21 | 5701-250-0959 | ND |
| 2019-10-22 | 5701-267-1032 | ND |
| 2019-10-23 | 5701-018-0940 | ND |
| 2019-10-28 | 5806-150-1135 | ND |
| 2019-10-28 | 5701-250-0950 | ND |
| 2019-11-04 | 5701-250-1010 | ND |
| 2019-11-12 | 5701-250-1031 | ND |
| 2019-11-13 | 5810-267-1231 | 2.40 ppb |
| 2019-11-18 | 5701-250-1000 | 2.13 ppb |
| 2019-11-18 | 5701-267-1036 | 2.52 ppb |
| 2019-11-20 | 5806-108-0835 | 4.50 ppb |
| 2019-11-25 | 5701-250-1007 | 2.12 ppb |
| 2019-11-25 | 5701-267-1026 | 2.60 ppb |
| 2019-12-02 | 5701-143-1030 | 5.68 ppb |
| 2019-12-02 | 5701-250-1030 | 2.38 ppb |
| 2019-12-02 | 5701-267-1425 | 2.80 ppb |
| 2019-12-09 | 5810-250-1030 | ND |
| 2019-12-10 | 5806-119-0845 | ND |
| 2019-12-10 | 5810-267-1001 | ND |
| 2019-12-16 | 5701-250-0950 | 2.73 ppb |
| 2019-12-16 | 5701-267-1006 | 2.86 ppb |
| 2019-12-22 | 5806-098-0800 | 5.50 ppb |
| 2019-12-22 | 5806-099-0802 | ND |
| 2019-12-22 | 5806-250-0807 | 5.20 ppb |
| 2019-12-22 | 5806-267-0820 | 4.80 ppb |
| 2019-12-30 | 5810-250-1402 | ND |
| 2019-12-31 | 5701-267-1346 | 2.88 ppb |