Nitrate
California American Water Company - Suburban
Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.
373
Samples
0
Samples exceeding legal limit (MCL)
354
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 2.71 ppm | 74 | 68 | ND - 6.28 ppm |
| 2015 | 2.89 ppm | 61 | 58 | ND - 6.34 ppm |
| 2016 | 3.40 ppm | 39 | 37 | ND - 6.16 ppm |
| 2017 | 3.04 ppm | 71 | 68 | ND - 6.23 ppm |
| 2018 | 2.68 ppm | 70 | 66 | ND - 6.17 ppm |
| 2019 | 2.97 ppm | 58 | 57 | ND - 6.20 ppm |
ppm = parts per million
State and national drinking water standards and health guidelines
EWG Health Guideline 0.14 ppm
The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.
EPA Maximum Contaminant
Level (MCL) 10 ppm
The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.
ppm = parts per million
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-16 | 1225-009-0915 | 1.67 ppm |
| 2014-01-16 | 1225-023-0925 | 1.65 ppm |
| 2014-02-11 | 1225-009-0950 | 1.63 ppm |
| 2014-02-11 | 1225-023-1005 | 1.62 ppm |
| 2014-02-18 | 1225-048-1000 | 5.25 ppm |
| 2014-02-19 | 1225-007-0945 | 4.05 ppm |
| 2014-02-19 | 1225-008-1140 | 2.35 ppm |
| 2014-02-19 | 1225-012-0900 | 6.24 ppm |
| 2014-02-19 | 1225-051-1020 | 6.04 ppm |
| 2014-03-10 | 1233-009-1230 | 1.49 ppm |
| 2014-03-10 | 1233-023-1245 | 1.49 ppm |
| 2014-04-08 | 1225-009-1135 | 1.62 ppm |
| 2014-04-08 | 1225-023-1145 | 1.64 ppm |
| 2014-05-06 | 5810-001-1207 | 0.474 ppm |
| 2014-05-06 | 5810-004-1330 | 1.58 ppm |
| 2014-05-06 | 1225-007-1105 | 4.13 ppm |
| 2014-05-06 | 5810-007-1105 | 4.07 ppm |
| 2014-05-06 | 1225-009-1300 | 1.62 ppm |
| 2014-05-06 | 5810-011-1238 | 2.19 ppm |
| 2014-05-06 | 5810-013-1210 | 1.83 ppm |
| 2014-05-06 | 5810-016-1115 | 1.99 ppm |
| 2014-05-06 | 5810-017-0930 | 1.49 ppm |
| 2014-05-06 | 5810-019-1030 | 2.94 ppm |
| 2014-05-06 | 5810-020-0810 | 0.587 ppm |
| 2014-05-06 | 1225-023-1310 | 1.63 ppm |
| 2014-05-06 | 1225-048-0950 | 5.24 ppm |
| 2014-05-06 | 5810-048-0950 | 5.20 ppm |
| 2014-05-06 | 5810-049-1100 | 2.71 ppm |
| 2014-05-06 | 1225-051-1030 | 6.16 ppm |
| 2014-05-06 | 5810-051-1030 | 6.10 ppm |
| 2014-05-06 | 5810-052-1130 | 2.48 ppm |
| 2014-05-06 | 5810-053-1215 | ND |
| 2014-05-07 | 5810-006-1020 | 4.52 ppm |
| 2014-05-07 | 1225-008-0935 | 2.23 ppm |
| 2014-05-07 | 5810-008-0935 | 2.10 ppm |
| 2014-05-07 | 5810-009-1340 | 1.56 ppm |
| 2014-05-07 | 5810-010-0945 | 2.48 ppm |
| 2014-05-07 | 5810-014-1005 | ND |
| 2014-05-07 | 5810-015-0930 | 1.22 ppm |
| 2014-05-07 | 5810-021-1128 | 2.06 ppm |
| 2014-05-07 | 5810-044-1100 | 4.07 ppm |
| 2014-05-07 | 5810-047-1135 | 4.29 ppm |
| 2014-05-08 | 5810-005-0900 | 2.19 ppm |
| 2014-05-08 | 1225-012-1145 | 6.28 ppm |
| 2014-05-08 | 5810-012-1145 | 5.87 ppm |
| 2014-06-17 | 1225-018-1150 | 3.71 ppm |
| 2014-08-11 | 1225-001-1011 | 0.608 ppm |
| 2014-08-11 | 1225-005-1005 | 2.25 ppm |
| 2014-08-11 | 1225-006-1110 | 4.50 ppm |
| 2014-08-11 | 1225-008-1025 | 1.77 ppm |
| 2014-08-11 | 1225-010-1230 | 3.31 ppm |
| 2014-08-11 | 1225-011-0940 | 0.989 ppm |
| 2014-08-11 | 1225-014-0930 | ND |
| 2014-08-11 | 1225-015-0835 | 1.33 ppm |
| 2014-08-11 | 1225-016-1110 | 2.14 ppm |
| 2014-08-11 | 1225-017-1225 | 1.50 ppm |
| 2014-08-11 | 1225-019-1145 | 3.00 ppm |
| 2014-08-11 | 1225-020-0800 | 0.553 ppm |
| 2014-08-11 | 1225-021-1150 | 1.40 ppm |
| 2014-08-11 | 1225-044-1040 | 3.96 ppm |
| 2014-08-11 | 1225-049-1150 | 1.26 ppm |
| 2014-08-12 | 1225-004-1230 | 1.71 ppm |
| 2014-08-12 | 1225-007-1100 | 4.00 ppm |
| 2014-08-12 | 1225-013-0935 | 1.93 ppm |
| 2014-08-12 | 1225-047-1105 | 3.93 ppm |
| 2014-08-12 | 1225-048-1150 | 5.25 ppm |
| 2014-08-12 | 1225-051-1030 | 6.12 ppm |
| 2014-08-12 | 1225-052-0945 | 2.82 ppm |
| 2014-08-12 | 1225-053-0900 | ND |
| 2014-08-12 | 1225-062-0905 | ND |
| 2014-10-08 | 1225-008-0910 | 1.80 ppm |
| 2014-10-08 | 1225-048-0905 | 6.08 ppm |
| 2014-10-15 | 1225-051-0815 | 6.28 ppm |
| 2014-12-03 | 1225-007-1115 | ND |
| 2015-02-26 | 1225-008-0940 | 2.13 ppm |
| 2015-03-17 | 1225-007-1240 | 4.06 ppm |
| 2015-03-23 | 1225-048-0909 | 5.16 ppm |
| 2015-03-23 | 1225-051-1025 | 6.01 ppm |
| 2015-04-07 | 1225-007-1115 | 4.06 ppm |
| 2015-04-07 | 1225-008-1135 | 1.73 ppm |
| 2015-04-07 | 1225-051-1005 | 6.19 ppm |
| 2015-04-08 | 1225-012-0925 | 6.27 ppm |
| 2015-04-15 | 1225-048-0937 | 5.80 ppm |
| 2015-07-08 | 1225-004-0850 | 1.65 ppm |
| 2015-07-08 | 1225-004-0850 | 1.65 ppm |
| 2015-07-08 | 1225-006-0950 | 4.36 ppm |
| 2015-07-08 | 1225-006-0950 | 4.36 ppm |
| 2015-07-08 | 1225-008-0910 | 1.79 ppm |
| 2015-07-08 | 1225-008-0910 | 1.78 ppm |
| 2015-07-08 | 1225-010-1110 | 2.74 ppm |
| 2015-07-08 | 1225-010-1110 | 2.74 ppm |
| 2015-07-08 | 1225-013-1100 | 1.85 ppm |
| 2015-07-08 | 1225-013-1100 | 1.85 ppm |
| 2015-07-08 | 1225-016-1030 | 2.19 ppm |
| 2015-07-08 | 1225-016-1030 | 2.19 ppm |
| 2015-07-08 | 1225-019-0940 | 3.05 ppm |
| 2015-07-08 | 1225-019-0940 | 3.05 ppm |
| 2015-07-08 | 1225-020-1205 | 0.520 ppm |
| 2015-07-08 | 1225-020-1205 | 0.515 ppm |
| 2015-07-08 | 1225-021-1030 | 1.35 ppm |
| 2015-07-08 | 1225-021-1030 | 1.35 ppm |
| 2015-07-09 | 1225-001-0945 | 0.460 ppm |
| 2015-07-09 | 1225-001-0945 | 0.456 ppm |
| 2015-07-09 | 1225-017-1045 | 2.80 ppm |
| 2015-07-09 | 1225-017-1045 | 2.80 ppm |
| 2015-07-09 | 1225-020-1030 | 0.510 ppm |
| 2015-07-09 | 1225-020-1030 | 0.511 ppm |
| 2015-07-14 | 1225-011-1030 | 1.18 ppm |
| 2015-07-14 | 1225-011-1030 | 1.18 ppm |
| 2015-07-15 | 1225-007-0920 | 4.12 ppm |
| 2015-07-15 | 1225-007-0920 | 4.12 ppm |
| 2015-07-15 | 1225-052-1025 | 5.43 ppm |
| 2015-07-15 | 1225-052-1025 | 5.43 ppm |
| 2015-07-20 | 1225-014-0920 | 0.360 ppm |
| 2015-07-20 | 1225-014-0920 | ND |
| 2015-07-20 | 1225-049-1210 | 1.70 ppm |
| 2015-07-20 | 1225-049-1210 | 1.70 ppm |
| 2015-07-22 | 1225-044-0845 | 4.18 ppm |
| 2015-07-22 | 1225-044-0845 | 4.17 ppm |
| 2015-07-22 | 1225-051-1110 | 6.34 ppm |
| 2015-07-22 | 1225-051-1110 | 6.33 ppm |
| 2015-07-27 | 1225-018-1005 | 3.52 ppm |
| 2015-07-27 | 1225-018-1005 | 3.53 ppm |
| 2015-07-27 | 1225-053-1220 | ND |
| 2015-07-28 | 1225-048-0900 | 5.82 ppm |
| 2015-07-28 | 1225-048-0900 | 5.85 ppm |
| 2015-07-30 | 1225-015-1035 | 1.33 ppm |
| 2015-07-30 | 1225-015-1035 | 1.33 ppm |
| 2015-08-26 | 1225-005-0930 | 2.10 ppm |
| 2015-08-27 | 1225-047-0750 | 4.24 ppm |
| 2015-10-19 | 1225-007-1318 | 3.91 ppm |
| 2015-10-26 | 1225-008-1143 | 2.06 ppm |
| 2015-10-26 | 1225-018-1030 | 3.51 ppm |
| 2015-10-28 | 1233-048-1035 | 5.20 ppm |
| 2015-12-08 | 1225-062-1130 | ND |
| 2016-01-18 | 1225-007-1155 | 4.10 ppm |
| 2016-01-18 | 1225-018-1045 | 3.51 ppm |
| 2016-01-20 | 1225-008-1340 | 1.88 ppm |
| 2016-01-25 | 1225-048-1040 | 5.20 ppm |
| 2016-03-24 | 1225-051-0850 | 5.66 ppm |
| 2016-04-11 | 1233-018-0910 | 3.40 ppm |
| 2016-04-11 | 1233-048-1015 | 5.20 ppm |
| 2016-04-11 | 1233-051-1355 | 6.10 ppm |
| 2016-04-12 | 1225-007-1155 | 3.99 ppm |
| 2016-04-14 | 1225-008-1225 | 1.84 ppm |
| 2016-07-06 | 1225-001-0927 | 0.430 ppm |
| 2016-07-06 | 1225-016-1207 | 2.21 ppm |
| 2016-07-06 | 1225-017-1038 | 1.54 ppm |
| 2016-07-06 | 1225-018-0852 | 3.85 ppm |
| 2016-07-06 | 1225-019-1136 | 3.06 ppm |
| 2016-07-06 | 1225-020-0816 | 0.580 ppm |
| 2016-07-06 | 1225-051-1200 | 5.90 ppm |
| 2016-07-06 | 1225-052-1228 | 5.73 ppm |
| 2016-07-11 | 1225-004-1000 | 1.66 ppm |
| 2016-07-11 | 1225-006-1300 | 4.33 ppm |
| 2016-07-11 | 1225-013-1150 | 1.85 ppm |
| 2016-07-11 | 1225-021-1225 | 1.45 ppm |
| 2016-07-21 | 5810-007-0848 | 3.30 ppm |
| 2016-07-21 | 5810-008-1203 | 1.50 ppm |
| 2016-07-21 | 5810-014-0812 | ND |
| 2016-07-21 | 5810-047-1100 | 4.00 ppm |
| 2016-07-21 | 5810-053-1000 | ND |
| 2016-07-27 | 1225-005-0945 | 2.32 ppm |
| 2016-07-27 | 1225-011-0943 | 2.19 ppm |
| 2016-07-27 | 1225-044-1052 | 4.21 ppm |
| 2016-08-01 | 1225-048-1340 | 6.16 ppm |
| 2016-10-11 | 1225-012-1130 | 5.71 ppm |
| 2016-10-12 | 1225-007-0900 | 4.25 ppm |
| 2016-10-12 | 1225-008-1010 | 1.89 ppm |
| 2016-10-13 | 1225-018-0935 | 3.82 ppm |
| 2016-10-13 | 1225-051-1040 | 5.37 ppm |
| 2016-10-19 | 1225-048-1100 | 5.65 ppm |
| 2016-10-24 | 1225-012-0930 | 5.55 ppm |
| 2016-10-27 | 1225-049-1105 | 3.05 ppm |
| 2017-02-13 | 1225-012-1205 | 5.12 ppm |
| 2017-02-14 | 1225-007-1025 | 4.08 ppm |
| 2017-02-14 | 1225-018-1230 | 3.60 ppm |
| 2017-02-14 | 1225-051-1020 | 5.04 ppm |
| 2017-02-16 | 1225-010-1000 | 3.28 ppm |
| 2017-02-27 | 1225-048-1058 | 5.46 ppm |
| 2017-05-08 | 1225-012-0910 | 4.47 ppm |
| 2017-05-08 | 1225-018-0830 | 3.56 ppm |
| 2017-05-08 | 1225-048-1015 | 5.42 ppm |
| 2017-05-10 | 1225-007-0925 | 4.18 ppm |
| 2017-06-16 | 1233-007-1245 | 3.90 ppm |
| 2017-08-02 | 1225-004-0955 | 1.63 ppm |
| 2017-08-02 | 1225-013-1210 | 1.81 ppm |
| 2017-08-02 | 1225-016-1140 | 2.23 ppm |
| 2017-08-02 | 1225-017-1035 | 1.55 ppm |
| 2017-08-02 | 1225-018-1005 | 3.25 ppm |
| 2017-08-02 | 1225-019-1115 | 3.16 ppm |
| 2017-08-02 | 1225-020-0920 | 0.590 ppm |
| 2017-08-02 | 1225-044-1235 | 4.29 ppm |
| 2017-08-02 | 1225-049-1125 | 1.53 ppm |
| 2017-08-02 | 1225-051-1205 | 6.23 ppm |
| 2017-08-03 | 1225-001-0850 | 0.460 ppm |
| 2017-08-03 | 1225-005-1015 | 2.44 ppm |
| 2017-08-03 | 1225-006-1047 | 4.86 ppm |
| 2017-08-03 | 1225-008-1010 | 1.77 ppm |
| 2017-08-03 | 1225-011-0943 | 1.21 ppm |
| 2017-08-03 | 1225-021-1105 | 1.54 ppm |
| 2017-08-03 | 1225-048-1100 | 5.39 ppm |
| 2017-08-21 | 1225-012-0920 | 5.46 ppm |
| 2017-08-21 | 1225-052-1120 | 2.53 ppm |
| 2017-08-22 | 1225-053-0945 | ND |
| 2017-08-23 | 1225-047-0935 | 4.95 ppm |
| 2017-08-30 | 1225-007-1113 | 4.26 ppm |
| 2017-09-19 | 5810-010-1420 | 2.60 ppm |
| 2017-09-19 | 5810-064-1520 | ND |
| 2017-09-19 | 5810-066-1520 | ND |
| 2017-09-26 | 5810-010-1328 | 2.80 ppm |
| 2017-09-26 | 5810-064-1343 | 2.30 ppm |
| 2017-09-26 | 5810-066-1348 | 2.50 ppm |
| 2017-10-03 | 5810-010-0730 | 2.80 ppm |
| 2017-10-03 | 5810-064-0745 | 3.00 ppm |
| 2017-10-03 | 5810-066-0750 | 3.00 ppm |
| 2017-10-10 | 5810-010-1442 | 2.70 ppm |
| 2017-10-10 | 5810-064-1500 | 2.80 ppm |
| 2017-10-10 | 5810-066-1505 | 2.90 ppm |
| 2017-10-12 | 1225-050-1230 | 4.38 ppm |
| 2017-10-17 | 5810-010-1342 | 2.70 ppm |
| 2017-10-24 | 5810-010-1350 | 2.70 ppm |
| 2017-10-24 | 5810-064-1405 | 2.80 ppm |
| 2017-10-24 | 5810-066-1410 | 2.80 ppm |
| 2017-10-31 | 5810-010-1228 | 2.70 ppm |
| 2017-10-31 | 5810-064-1243 | 2.70 ppm |
| 2017-10-31 | 5810-066-1248 | 2.80 ppm |
| 2017-11-06 | 1225-018-1005 | 3.62 ppm |
| 2017-11-07 | 5810-010-0915 | 2.60 ppm |
| 2017-11-07 | 5810-064-0930 | 2.70 ppm |
| 2017-11-07 | 5810-066-0935 | 2.70 ppm |
| 2017-11-08 | 1225-007-0938 | 4.26 ppm |
| 2017-11-14 | 5810-010-1226 | 2.60 ppm |
| 2017-11-14 | 5810-064-1241 | 2.60 ppm |
| 2017-11-14 | 5810-066-1246 | 2.60 ppm |
| 2017-11-21 | 5810-010-1118 | 2.50 ppm |
| 2017-11-21 | 5810-064-1133 | 2.50 ppm |
| 2017-11-21 | 5810-066-1138 | 2.60 ppm |
| 2017-11-28 | 5810-010-1337 | 2.50 ppm |
| 2017-11-28 | 5810-064-1352 | 2.50 ppm |
| 2017-11-28 | 5810-066-1357 | 2.50 ppm |
| 2017-11-29 | 1225-048-1020 | 5.18 ppm |
| 2017-11-29 | 1225-051-1120 | 6.02 ppm |
| 2017-11-30 | 1225-012-0845 | 5.06 ppm |
| 2017-12-06 | 1225-014-1140 | 0.320 ppm |
| 2018-02-13 | 1225-010-1146 | 2.80 ppm |
| 2018-02-13 | 1225-012-0835 | 4.49 ppm |
| 2018-02-13 | 1225-018-0805 | 3.62 ppm |
| 2018-02-13 | 1225-048-0955 | 5.23 ppm |
| 2018-02-13 | 1225-051-1115 | 6.15 ppm |
| 2018-02-14 | 1225-007-0948 | 4.25 ppm |
| 2018-02-20 | 5810-010-1030 | 2.80 ppm |
| 2018-02-20 | 5810-063-1045 | 2.60 ppm |
| 2018-02-20 | 5810-064-1050 | 2.70 ppm |
| 2018-02-20 | 5810-065-1055 | 2.60 ppm |
| 2018-02-20 | 5810-066-1100 | 2.70 ppm |
| 2018-03-12 | 5810-010-0936 | 2.30 ppm |
| 2018-03-12 | 5810-063-0950 | 2.40 ppm |
| 2018-03-12 | 5810-064-0955 | 2.40 ppm |
| 2018-03-12 | 5810-065-1000 | 2.40 ppm |
| 2018-03-12 | 5810-066-1005 | 2.40 ppm |
| 2018-05-01 | 5810-010-1145 | 2.30 ppm |
| 2018-05-01 | 1225-018-0815 | 3.61 ppm |
| 2018-05-01 | 5810-063-1200 | 2.30 ppm |
| 2018-05-01 | 5810-064-1205 | 2.30 ppm |
| 2018-05-01 | 5810-065-1210 | 2.30 ppm |
| 2018-05-01 | 5810-066-1215 | 2.30 ppm |
| 2018-05-02 | 1225-007-1130 | 4.25 ppm |
| 2018-05-08 | 1225-012-1015 | 4.73 ppm |
| 2018-05-16 | 1225-051-1235 | 6.14 ppm |
| 2018-08-06 | 1233-005-0810 | 2.10 ppm |
| 2018-08-06 | 1233-014-1055 | ND |
| 2018-08-06 | 1233-018-0915 | 3.10 ppm |
| 2018-08-06 | 1233-020-1240 | ND |
| 2018-08-06 | 1233-051-1230 | 4.60 ppm |
| 2018-08-08 | 1233-007-0945 | 3.90 ppm |
| 2018-08-08 | 1233-011-1305 | 1.50 ppm |
| 2018-08-08 | 1233-044-1110 | 3.50 ppm |
| 2018-08-08 | 1233-047-1230 | 4.10 ppm |
| 2018-08-09 | 1233-004-0905 | 1.50 ppm |
| 2018-08-09 | 1233-006-1300 | 4.00 ppm |
| 2018-08-09 | 1233-016-0815 | 2.00 ppm |
| 2018-08-09 | 1233-049-1100 | 2.30 ppm |
| 2018-08-09 | 1233-052-1250 | 2.60 ppm |
| 2018-08-13 | 1233-001-0850 | 0.590 ppm |
| 2018-08-13 | 1233-010-1140 | 2.50 ppm |
| 2018-08-13 | 1233-013-1015 | 1.50 ppm |
| 2018-08-13 | 1233-017-0900 | 1.30 ppm |
| 2018-08-13 | 1233-019-1015 | 2.80 ppm |
| 2018-08-13 | 1233-021-1020 | 1.40 ppm |
| 2018-08-14 | 5810-010-1415 | 2.70 ppm |
| 2018-08-14 | 1233-012-1130 | 4.00 ppm |
| 2018-08-14 | 1233-053-0905 | ND |
| 2018-08-14 | 1233-062-0840 | ND |
| 2018-08-14 | 5810-063-1425 | 2.50 ppm |
| 2018-08-14 | 5810-064-1430 | 2.40 ppm |
| 2018-08-14 | 5810-065-1435 | 2.50 ppm |
| 2018-08-14 | 5810-066-1440 | 2.40 ppm |
| 2018-09-11 | 1233-009-0845 | 2.70 ppm |
| 2018-10-17 | 1233-008-1030 | 1.60 ppm |
| 2018-10-17 | 1233-009-1115 | 2.60 ppm |
| 2018-10-17 | 1233-022-1115 | 2.40 ppm |
| 2018-10-17 | 1233-023-1115 | 2.10 ppm |
| 2018-11-05 | 1233-018-1000 | 3.30 ppm |
| 2018-11-06 | 5810-010-1030 | 2.20 ppm |
| 2018-11-06 | 1225-012-0940 | 3.26 ppm |
| 2018-11-06 | 1225-051-1110 | 6.17 ppm |
| 2018-11-06 | 5810-063-1035 | 2.20 ppm |
| 2018-11-06 | 5810-064-1040 | 2.20 ppm |
| 2018-11-06 | 5810-065-1045 | 2.20 ppm |
| 2018-11-06 | 5810-066-1050 | 2.20 ppm |
| 2018-11-14 | 1225-009-1120 | 3.04 ppm |
| 2018-11-14 | 1225-022-1125 | 1.84 ppm |
| 2018-11-14 | 1225-023-1130 | 0.810 ppm |
| 2018-12-12 | 1225-009-0915 | 3.08 ppm |
| 2019-02-06 | 1225-009-1300 | 3.08 ppm |
| 2019-02-07 | 1225-051-1155 | 5.98 ppm |
| 2019-02-11 | 1225-018-1140 | 4.02 ppm |
| 2019-02-12 | 5810-010-1100 | 2.10 ppm |
| 2019-02-12 | 5810-063-1105 | 2.10 ppm |
| 2019-02-12 | 5810-064-1110 | 2.10 ppm |
| 2019-02-12 | 5810-065-1115 | 2.10 ppm |
| 2019-02-12 | 5810-066-1120 | 2.10 ppm |
| 2019-02-19 | 1225-012-1330 | 4.31 ppm |
| 2019-03-13 | 1225-009-1415 | 3.00 ppm |
| 2019-04-16 | 1225-009-1400 | 3.04 ppm |
| 2019-05-14 | 2435-010-0940 | 2.50 ppm |
| 2019-05-15 | 1225-018-1540 | 3.73 ppm |
| 2019-05-15 | 1225-051-1415 | 6.20 ppm |
| 2019-05-20 | 1225-009-1300 | 3.11 ppm |
| 2019-06-20 | 1225-012-1410 | 4.74 ppm |
| 2019-08-07 | 1225-014-1200 | 0.410 ppm |
| 2019-08-07 | 1225-017-1050 | 1.42 ppm |
| 2019-08-07 | 1225-019-1105 | 3.02 ppm |
| 2019-08-07 | 1225-052-1440 | 2.31 ppm |
| 2019-08-07 | 1225-053-1545 | ND |
| 2019-08-08 | 1225-004-1500 | 1.64 ppm |
| 2019-08-08 | 1225-005-1415 | 2.45 ppm |
| 2019-08-08 | 1225-008-1110 | 1.88 ppm |
| 2019-08-08 | 1225-011-1230 | 1.09 ppm |
| 2019-08-08 | 1225-016-1025 | 2.17 ppm |
| 2019-08-08 | 1225-018-1440 | 3.46 ppm |
| 2019-08-08 | 1225-020-1120 | 0.600 ppm |
| 2019-08-08 | 1225-021-1200 | 1.50 ppm |
| 2019-08-08 | 1225-047-1320 | 4.80 ppm |
| 2019-08-08 | 1225-051-1200 | 5.98 ppm |
| 2019-08-12 | 1225-001-1200 | 0.500 ppm |
| 2019-08-12 | 1225-006-1410 | 4.62 ppm |
| 2019-08-12 | 1225-012-1200 | 4.97 ppm |
| 2019-08-12 | 1225-013-1240 | 1.70 ppm |
| 2019-08-12 | 1225-015-1215 | 1.39 ppm |
| 2019-08-12 | 1225-015-1230 | 1.38 ppm |
| 2019-08-12 | 1225-044-1250 | 3.96 ppm |
| 2019-08-12 | 1225-050-1445 | 4.63 ppm |
| 2019-08-14 | 1225-007-1115 | 4.51 ppm |
| 2019-08-14 | 1225-010-1230 | 2.86 ppm |
| 2019-08-14 | 1225-063-1235 | 2.87 ppm |
| 2019-08-14 | 1225-064-1240 | 2.90 ppm |
| 2019-08-14 | 1225-065-1245 | 2.87 ppm |
| 2019-08-14 | 1225-066-1250 | 2.89 ppm |
| 2019-09-18 | 1225-009-1545 | 3.32 ppm |
| 2019-09-18 | 1225-049-1200 | 2.86 ppm |
| 2019-10-16 | 1225-009-1430 | 3.12 ppm |
| 2019-11-04 | 1225-010-1222 | 2.67 ppm |
| 2019-11-04 | 1225-063-1237 | 2.69 ppm |
| 2019-11-04 | 1225-064-1247 | 2.74 ppm |
| 2019-11-04 | 1225-065-1304 | 2.85 ppm |
| 2019-11-04 | 1225-066-1320 | 2.69 ppm |
| 2019-11-11 | 1225-012-1220 | 4.56 ppm |
| 2019-11-11 | 1225-018-1505 | 3.29 ppm |
| 2019-11-11 | 1225-051-1305 | 6.17 ppm |
| 2019-11-12 | 1225-009-1430 | 3.18 ppm |
| 2019-12-12 | 1225-009-1235 | 3.07 ppm |