1,4-Dioxane
Irvine Ranch Water District
1,4-Dioxane is a solvent classified by the EPA as a likely human carcinogen. It contaminates groundwater in many states due to industrial wastewater discharges, plastic manufacturing runoff and landfill runoff. Read More.
Animal studies show that 1,4-dioxane can target the liver, kidneys and respiratory system, and that prenatal exposure can harm the developing fetus. The State of California has set a Public Heatlh Goal of no more than 1 part per billion of 1,4-dioxane in drinking water. The state of Massachusetts sets a legal limit of 0.3 ppb, and New Hampshire's limit is 3 parts per billion. There is no national drinking water standard for this contaminant.
617
Samples
0
Samples exceeding legal limit (MCL)
240
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.139 ppb | 12 | 5 | ND - 0.450 ppb |
| 2014 | 0.872 ppb | 98 | 22 | ND - 9.70 ppb |
| 2015 | 0.824 ppb | 83 | 15 | ND - 7.60 ppb |
| 2016 | 1.77 ppb | 87 | 36 | ND - 9.42 ppb |
| 2017 | 2.07 ppb | 90 | 40 | ND - 8.10 ppb |
| 2018 | 2.04 ppb | 122 | 66 | ND - 8.42 ppb |
| 2019 | 1.81 ppb | 125 | 60 | ND - 6.70 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.35 ppb
The EWG Health Guideline of 0.35 ppb for 1,4-dioxane was defined by the Environmental Protection Agency 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 |
|---|---|---|
| 2013-03-04 | 3010092817 | ND |
| 2013-03-05 | 3010092816 | 0.440 ppb |
| 2013-06-10 | 3010092817-2 | ND |
| 2013-06-10 | 3010092816-2 | ND |
| 2013-09-03 | 3010092817-3 | ND |
| 2013-09-03 | 3010092816-3 | 0.220 ppb |
| 2013-10-21 | 3J24056-07A | 0.450 ppb |
| 2013-10-21 | 3J24056-13A | 0.390 ppb |
| 2013-10-21 | 3J24056-11A | ND |
| 2013-10-21 | 3J24056-09A | ND |
| 2013-12-09 | 3010092817-4 | ND |
| 2013-12-09 | 3010092816-4 | 0.170 ppb |
| 2014-01-07 | 3010092802-1 | 0.240 ppb |
| 2014-01-08 | 3010092818-1A | ND |
| 2014-01-14 | 4417-066-0930 | ND |
| 2014-01-14 | 4417-067-1010 | ND |
| 2014-01-15 | 4417-006-1000 | ND |
| 2014-01-15 | 4417-017-1100 | ND |
| 2014-01-27 | 4A29064-01A | ND |
| 2014-01-28 | 4A29064-11A | 0.180 ppb |
| 2014-01-28 | 4A29064-07A | ND |
| 2014-01-29 | 4A29064-13A | ND |
| 2014-02-04 | 4317-052-1103 | ND |
| 2014-02-05 | 3010092809-1 | ND |
| 2014-02-11 | 4417-007-1215 | 6.10 ppb |
| 2014-02-11 | 4317-052-0956 | ND |
| 2014-02-11 | 4417-056-1305 | ND |
| 2014-02-19 | 4417-009-1115 | ND |
| 2014-02-19 | 4317-052-0940 | ND |
| 2014-02-25 | 4317-052-1012 | ND |
| 2014-02-26 | 4417-058-1020 | ND |
| 2014-02-26 | 4417-072-0945 | ND |
| 2014-03-10 | 4417-016-0810 | ND |
| 2014-03-10 | 4417-055-0850 | ND |
| 2014-03-11 | 4417-020-0930 | 5.40 ppb |
| 2014-03-11 | 4317-052-1028 | ND |
| 2014-03-18 | 4417-003-0825 | ND |
| 2014-03-18 | 4417-014-0845 | ND |
| 2014-03-18 | 4417-018-0800 | 1.20 ppb |
| 2014-03-18 | 4417-019-0915 | ND |
| 2014-03-18 | 4317-052-1001 | ND |
| 2014-03-25 | 4417-004-0845 | ND |
| 2014-03-25 | 4417-005-0815 | ND |
| 2014-04-08 | 4317-052-1202 | ND |
| 2014-04-15 | 4317-052-0955 | ND |
| 2014-04-16 | 4D17070-13A | ND |
| 2014-04-16 | 4D17070-11A | ND |
| 2014-04-22 | 4317-052-0916 | ND |
| 2014-04-29 | 4317-052-1029 | ND |
| 2014-04-30 | 4417-011-0845 | ND |
| 2014-04-30 | 4417-023-1010 | ND |
| 2014-04-30 | 4417-024-1035 | ND |
| 2014-05-07 | 4417-007-0810 | 9.70 ppb |
| 2014-05-07 | 4417-008-0835 | 1.70 ppb |
| 2014-05-07 | 4317-052-1454 | ND |
| 2014-05-13 | 4317-052-1122 | ND |
| 2014-05-15 | 4417-020-0910 | 5.00 ppb |
| 2014-05-20 | 4317-052-1154 | ND |
| 2014-05-28 | 4317-052-1135 | ND |
| 2014-06-03 | 4417-008-0730 | ND |
| 2014-06-03 | 4417-008-0745 | ND |
| 2014-06-04 | 4317-052-1151 | ND |
| 2014-06-10 | 4417-007-1015 | 4.70 ppb |
| 2014-06-10 | 4417-007-1025 | 6.70 ppb |
| 2014-06-10 | 4317-052-1144 | ND |
| 2014-06-17 | 4417-015-0945 | ND |
| 2014-06-17 | 4417-018-0900 | 1.50 ppb |
| 2014-06-18 | 4317-052-1144 | ND |
| 2014-06-25 | 4317-052-0901 | ND |
| 2014-07-02 | 4317-052-0843 | ND |
| 2014-07-09 | 3010092809-2 | ND |
| 2014-07-15 | 4317-052-0745 | ND |
| 2014-07-22 | 4317-052-0756 | ND |
| 2014-07-29 | 4G31058-01A | ND |
| 2014-07-29 | 4G31058-09A | ND |
| 2014-07-29 | 4G31058-11A | ND |
| 2014-07-30 | 4317-052-0807 | ND |
| 2014-08-06 | 4317-052-0752 | ND |
| 2014-08-13 | 4417-018-0745 | 2.40 ppb |
| 2014-08-13 | 4317-052-0755 | ND |
| 2014-08-20 | 4417-007-0825 | 7.00 ppb |
| 2014-08-20 | 4417-008-0840 | 1.10 ppb |
| 2014-08-20 | 4317-052-0812 | ND |
| 2014-08-27 | 4317-052-1056 | ND |
| 2014-08-28 | 4417-010-1045 | ND |
| 2014-08-28 | 4417-020-1025 | 4.50 ppb |
| 2014-09-04 | 4317-052-1003 | ND |
| 2014-09-10 | 4317-052-0822 | 1.10 ppb |
| 2014-09-17 | 4317-052-1215 | ND |
| 2014-09-24 | 4317-052-1510 | ND |
| 2014-10-01 | 4317-052-1139 | ND |
| 2014-10-07 | 4417-078-1300 | ND |
| 2014-10-08 | 4317-052-0833 | ND |
| 2014-10-22 | 4317-052-0808 | ND |
| 2014-10-29 | 4317-052-0831 | ND |
| 2014-11-04 | 4417-018-0940 | 4.90 ppb |
| 2014-11-05 | 4317-052-0911 | ND |
| 2014-11-12 | 4417-008-0815 | 1.70 ppb |
| 2014-11-12 | 4317-052-0853 | ND |
| 2014-11-19 | 4317-052-0820 | ND |
| 2014-11-25 | 4317-052-0806 | ND |
| 2014-12-03 | 4317-052-0958 | ND |
| 2014-12-10 | 4417-020-0920 | 4.60 ppb |
| 2014-12-10 | 4317-052-0945 | ND |
| 2014-12-17 | 4417-007-0900 | 7.30 ppb |
| 2014-12-17 | 4417-018-0915 | 4.30 ppb |
| 2014-12-17 | 4417-018-0930 | 4.10 ppb |
| 2014-12-17 | 4317-052-0939 | ND |
| 2014-12-23 | 4317-052-0833 | ND |
| 2014-12-31 | 4317-052-1024 | ND |
| 2015-01-07 | 4317-052-1024 | ND |
| 2015-01-12 | 4417-017-0940 | ND |
| 2015-01-12 | 4417-078-1120 | ND |
| 2015-01-14 | 4417-006-0945 | ND |
| 2015-01-14 | 4317-052-1103 | ND |
| 2015-01-21 | 4317-052-1014 | ND |
| 2015-01-26 | 4417-056-1035 | ND |
| 2015-01-26 | 4417-058-1105 | ND |
| 2015-01-26 | 4417-072-1145 | ND |
| 2015-01-27 | 4417-003-1015 | ND |
| 2015-01-27 | 4417-016-0930 | ND |
| 2015-01-28 | 4317-052-0854 | ND |
| 2015-01-28 | 4417-066-1000 | ND |
| 2015-01-28 | 4417-067-1025 | ND |
| 2015-02-04 | 4317-052-1009 | ND |
| 2015-02-09 | 4417-004-0940 | ND |
| 2015-02-11 | 4317-052-0820 | ND |
| 2015-02-18 | 4317-052-1243 | ND |
| 2015-02-23 | 4417-019-0905 | ND |
| 2015-02-24 | 4317-052-1044 | ND |
| 2015-03-03 | 4317-052-1032 | ND |
| 2015-03-11 | 4317-052-0802 | ND |
| 2015-03-18 | 4417-005-0950 | ND |
| 2015-03-18 | 4417-007-1020 | 7.20 ppb |
| 2015-03-18 | 4417-014-0930 | ND |
| 2015-03-18 | 4317-052-0822 | ND |
| 2015-03-19 | 4417-018-0755 | 4.10 ppb |
| 2015-03-25 | 4417-009-1010 | ND |
| 2015-03-25 | 4417-020-0940 | 6.20 ppb |
| 2015-03-25 | 4317-052-0815 | ND |
| 2015-03-26 | 4417-008-0830 | 1.10 ppb |
| 2015-04-01 | 4317-052-0828 | ND |
| 2015-04-07 | 4317-052-0849 | ND |
| 2015-04-08 | 4417-078-1000 | ND |
| 2015-04-14 | 4317-052-0839 | ND |
| 2015-04-15 | 4317-052-1115 | ND |
| 2015-04-21 | 4317-052-1112 | ND |
| 2015-04-27 | 4417-023-1200 | ND |
| 2015-04-27 | 4417-024-1220 | ND |
| 2015-04-28 | 4317-052-1126 | ND |
| 2015-04-29 | 4417-011-0800 | ND |
| 2015-05-06 | 4417-020-0755 | 5.00 ppb |
| 2015-05-14 | 4417-018-0725 | 4.70 ppb |
| 2015-05-20 | 4417-077-0750 | ND |
| 2015-06-01 | 4417-055-1035 | ND |
| 2015-06-03 | 4417-008-0905 | 1.60 ppb |
| 2015-06-11 | 4417-007-0810 | 5.50 ppb |
| 2015-07-07 | 4317-052-1022 | ND |
| 2015-07-13 | 4417-077-1100 | ND |
| 2015-07-14 | 4417-078-0900 | ND |
| 2015-07-15 | 4317-052-1100 | ND |
| 2015-07-21 | 4317-052-1103 | ND |
| 2015-07-22 | 4317-075-1119 | ND |
| 2015-07-29 | 4317-052-1106 | ND |
| 2015-08-06 | 4317-052-0936 | ND |
| 2015-08-11 | 4317-052-1205 | ND |
| 2015-08-13 | 4417-007-0845 | 6.90 ppb |
| 2015-08-19 | 4317-052-0833 | ND |
| 2015-08-20 | 4417-008-0825 | 1.60 ppb |
| 2015-08-20 | 4417-010-0840 | ND |
| 2015-08-20 | 4417-020-0815 | 4.90 ppb |
| 2015-08-25 | 4317-052-0827 | ND |
| 2015-08-27 | 4417-018-0905 | 5.70 ppb |
| 2015-09-02 | 4317-052-1056 | ND |
| 2015-09-09 | 4317-052-0807 | ND |
| 2015-09-16 | 4317-052-0824 | ND |
| 2015-09-22 | 4317-052-0817 | ND |
| 2015-09-29 | 4317-052-0752 | ND |
| 2015-10-05 | 4417-077-0930 | ND |
| 2015-10-06 | 4317-052-1126 | ND |
| 2015-10-12 | 4417-008-0815 | ND |
| 2015-10-13 | 4317-052-1146 | ND |
| 2015-10-21 | 4317-052-1125 | ND |
| 2015-10-26 | 4417-020-0835 | 5.10 ppb |
| 2015-10-27 | 4317-052-1125 | ND |
| 2015-11-04 | 4317-052-1256 | ND |
| 2015-11-05 | 4417-007-0905 | 7.60 ppb |
| 2015-11-10 | 4317-052-1338 | ND |
| 2015-11-17 | 4317-052-1051 | ND |
| 2015-11-24 | 4317-052-1308 | 1.20 ppb |
| 2015-12-02 | 4317-052-1140 | ND |
| 2015-12-09 | 4317-052-1045 | ND |
| 2015-12-15 | 4317-052-0936 | ND |
| 2016-01-12 | 4417-006-0910 | ND |
| 2016-01-12 | 4417-017-0940 | ND |
| 2016-01-12 | 4417-077-1030 | ND |
| 2016-01-28 | 4417-011-0845 | ND |
| 2016-01-28 | 4417-016-0820 | ND |
| 2016-01-28 | 4417-056-1000 | ND |
| 2016-01-28 | 4417-058-1025 | ND |
| 2016-01-28 | 4417-072-0925 | ND |
| 2016-02-08 | 4417-009-0750 | ND |
| 2016-02-18 | 4417-005-0825 | ND |
| 2016-02-23 | 4417-003-0815 | ND |
| 2016-02-23 | 4417-004-0835 | ND |
| 2016-02-23 | 4417-020-0755 | 5.60 ppb |
| 2016-02-25 | 4417-066-0950 | ND |
| 2016-02-29 | 4417-008-0925 | ND |
| 2016-02-29 | 4417-019-0955 | ND |
| 2016-03-07 | 4417-007-1110 | 8.60 ppb |
| 2016-03-08 | 4317-052-0820 | ND |
| 2016-03-15 | 4317-052-0825 | ND |
| 2016-03-17 | 4417-014-1025 | ND |
| 2016-03-22 | 4317-052-0837 | ND |
| 2016-05-05 | 4417-055-0940 | ND |
| 2016-05-31 | 4417-023-0905 | ND |
| 2016-05-31 | 4417-024-0835 | ND |
| 2016-05-31 | 4417-067-1020 | ND |
| 2016-06-01 | 4317-052-1014 | 1.30 ppb |
| 2016-06-02 | 4417-007-0750 | 7.10 ppb |
| 2016-06-07 | 4317-052-1020 | ND |
| 2016-06-08 | 4417-020-0740 | 5.30 ppb |
| 2016-06-14 | 4317-052-1040 | ND |
| 2016-06-22 | 4317-052-0916 | ND |
| 2016-06-23 | 4417-008-0835 | 2.30 ppb |
| 2016-06-27 | 4417-077-0820 | ND |
| 2016-06-28 | 4317-052-0839 | ND |
| 2016-07-07 | 4317-008-1000 | 2.50 ppb |
| 2016-07-07 | 4317-052-1131 | ND |
| 2016-07-13 | 4317-007-0747 | 7.00 ppb |
| 2016-07-13 | 4317-052-1130 | ND |
| 2016-07-20 | 4317-052-0847 | ND |
| 2016-07-26 | 4417-008-0820 | 2.40 ppb |
| 2016-07-26 | 4417-008-0830 | 2.00 ppb |
| 2016-07-26 | 4317-008-0943 | 1.60 ppb |
| 2016-07-26 | 4417-010-0900 | ND |
| 2016-07-26 | 4317-020-0930 | 2.90 ppb |
| 2016-07-26 | 4317-052-1105 | ND |
| 2016-07-28 | 4417-078-1200 | ND |
| 2016-08-02 | 4317-007-0948 | 6.80 ppb |
| 2016-08-02 | 4317-052-1230 | ND |
| 2016-08-09 | 4417-020-0935 | 4.90 ppb |
| 2016-08-10 | 4317-020-0935 | 3.50 ppb |
| 2016-08-10 | 4317-052-1142 | ND |
| 2016-08-17 | 4317-008-1004 | 1.20 ppb |
| 2016-08-17 | 4317-052-1137 | ND |
| 2016-08-24 | 4317-008-0936 | 2.50 ppb |
| 2016-08-24 | 4317-052-1109 | ND |
| 2016-08-31 | 4317-008-1015 | 2.40 ppb |
| 2016-08-31 | 4317-020-1010 | 5.00 ppb |
| 2016-08-31 | 4317-052-0800 | ND |
| 2016-09-07 | 4317-007-0949 | 7.70 ppb |
| 2016-09-07 | 4317-008-1024 | 2.10 ppb |
| 2016-09-07 | 4317-052-0853 | 1.000 ppb |
| 2016-09-12 | 4417-007-0740 | 7.80 ppb |
| 2016-09-14 | 4317-052-0922 | ND |
| 2016-09-21 | 4317-008-1006 | 2.30 ppb |
| 2016-09-21 | 4317-020-0949 | 5.00 ppb |
| 2016-09-21 | 4317-052-0923 | ND |
| 2016-09-27 | 4317-008-1014 | 2.20 ppb |
| 2016-09-27 | 4317-020-0948 | 5.00 ppb |
| 2016-09-27 | 4317-052-1225 | ND |
| 2016-10-04 | 4317-052-0828 | ND |
| 2016-10-05 | 4417-007-0915 | 7.70 ppb |
| 2016-10-06 | 4417-008-0915 | 2.40 ppb |
| 2016-10-11 | 4317-052-0805 | ND |
| 2016-10-12 | 4417-020-0815 | 4.50 ppb |
| 2016-10-18 | 4317-008-0943 | 2.62 ppb |
| 2016-10-18 | 4317-052-0830 | ND |
| 2016-10-25 | 4317-007-0938 | 9.42 ppb |
| 2016-10-25 | 4317-052-0830 | ND |
| 2016-11-01 | 4317-020-0919 | 4.89 ppb |
| 2016-11-01 | 4317-052-0815 | ND |
| 2016-11-08 | 4317-008-1218 | 1.78 ppb |
| 2016-11-08 | 4317-052-1020 | ND |
| 2016-11-15 | 4317-007-0945 | 8.78 ppb |
| 2016-11-15 | 4317-052-0755 | ND |
| 2016-11-22 | 4317-020-0915 | 4.19 ppb |
| 2016-11-22 | 4317-052-0800 | ND |
| 2016-11-29 | 4317-052-0810 | ND |
| 2017-01-09 | 4417-017-0920 | ND |
| 2017-01-17 | 4417-011-0835 | ND |
| 2017-01-17 | 4417-016-0805 | ND |
| 2017-01-17 | 4417-077-1040 | ND |
| 2017-01-19 | 4417-058-0940 | ND |
| 2017-01-19 | 4417-067-0830 | ND |
| 2017-01-23 | 4417-003-0950 | ND |
| 2017-01-23 | 4417-005-1055 | ND |
| 2017-01-23 | 4417-006-0850 | ND |
| 2017-01-23 | 4417-014-1015 | ND |
| 2017-01-23 | 4417-019-1040 | ND |
| 2017-01-26 | 4417-007-0830 | 5.90 ppb |
| 2017-02-14 | 4417-004-0820 | ND |
| 2017-02-14 | 4317-020-1057 | 5.92 ppb |
| 2017-02-14 | 4417-020-1340 | 4.50 ppb |
| 2017-02-14 | 4317-052-0947 | ND |
| 2017-02-14 | 4417-066-0925 | ND |
| 2017-02-14 | 4417-078-1010 | ND |
| 2017-02-22 | 4417-008-1130 | 1.70 ppb |
| 2017-02-28 | 4317-007-1059 | 5.79 ppb |
| 2017-02-28 | 4317-052-0953 | ND |
| 2017-03-01 | 4417-020-0755 | 6.10 ppb |
| 2017-03-14 | 4417-056-1210 | ND |
| 2017-03-23 | 4417-055-1000 | ND |
| 2017-04-03 | 4417-017-1100 | 1.000 ppb |
| 2017-04-06 | 4317-020-1350 | 4.32 ppb |
| 2017-04-06 | 4317-052-1347 | ND |
| 2017-04-12 | 4317-008-1153 | 2.25 ppb |
| 2017-04-12 | 4317-052-1047 | ND |
| 2017-04-25 | 4317-020-0958 | 5.30 ppb |
| 2017-04-25 | 4317-052-0840 | ND |
| 2017-04-27 | 4417-017-0740 | ND |
| 2017-04-27 | 4417-017-0755 | ND |
| 2017-05-02 | 4417-008-1320 | ND |
| 2017-05-02 | 4417-010-0910 | ND |
| 2017-05-02 | 4417-017-0955 | ND |
| 2017-05-02 | 4417-023-0800 | ND |
| 2017-05-02 | 4417-024-0850 | ND |
| 2017-05-09 | 4417-007-0820 | 8.10 ppb |
| 2017-05-09 | 4317-007-1034 | 7.89 ppb |
| 2017-05-09 | 4317-052-1135 | ND |
| 2017-05-16 | 4317-008-1123 | 2.78 ppb |
| 2017-05-16 | 4317-052-1258 | ND |
| 2017-05-17 | 4417-020-1140 | 4.70 ppb |
| 2017-05-17 | 4417-020-1155 | 4.90 ppb |
| 2017-05-23 | 4317-008-1119 | 2.02 ppb |
| 2017-05-23 | 4317-052-1257 | ND |
| 2017-05-25 | 4417-055-1000 | ND |
| 2017-06-01 | 4317-052-1016 | ND |
| 2017-06-01 | 4417-058-1100 | ND |
| 2017-06-01 | 4417-078-1030 | ND |
| 2017-06-07 | 4317-052-0830 | 1.12 ppb |
| 2017-06-13 | 4317-008-1022 | 1.27 ppb |
| 2017-06-13 | 4317-052-0955 | ND |
| 2017-06-20 | 4317-007-1002 | 4.83 ppb |
| 2017-06-20 | 4317-052-0810 | ND |
| 2017-06-27 | 4317-008-1009 | 1.12 ppb |
| 2017-06-27 | 4317-052-0822 | ND |
| 2017-07-05 | 4317-008-0955 | 1.91 ppb |
| 2017-07-05 | 4317-020-0938 | 4.48 ppb |
| 2017-07-05 | 4317-052-1127 | ND |
| 2017-07-11 | 4317-007-0930 | 6.58 ppb |
| 2017-07-11 | 4317-008-0952 | 1.91 ppb |
| 2017-07-11 | 4317-052-1200 | ND |
| 2017-07-13 | 4417-017-0750 | ND |
| 2017-08-01 | 4417-018-0830 | 5.90 ppb |
| 2017-08-01 | 4317-018-1000 | 6.11 ppb |
| 2017-08-22 | 4417-006-0910 | ND |
| 2017-08-22 | 4417-007-0800 | 7.20 ppb |
| 2017-08-22 | 4317-007-0905 | 7.56 ppb |
| 2017-08-22 | 4417-008-0830 | 3.00 ppb |
| 2017-08-22 | 4317-008-0855 | 3.26 ppb |
| 2017-08-22 | 4317-052-0743 | ND |
| 2017-08-29 | 4417-020-0805 | 5.40 ppb |
| 2017-08-29 | 4417-020-0820 | 6.00 ppb |
| 2017-09-12 | 4317-018-1030 | 6.48 ppb |
| 2017-09-12 | 4317-052-0818 | ND |
| 2017-09-12 | 4417-072-1100 | ND |
| 2017-10-16 | 4417-017-0910 | ND |
| 2017-11-08 | 4417-007-0805 | 7.80 ppb |
| 2017-11-08 | 4417-008-0825 | 3.00 ppb |
| 2017-11-08 | 4417-008-0835 | 2.80 ppb |
| 2017-11-08 | 4417-018-0745 | 6.30 ppb |
| 2017-11-08 | 4417-018-0750 | 6.30 ppb |
| 2017-11-09 | 4417-020-1030 | 6.30 ppb |
| 2017-11-09 | 4417-020-1040 | 6.30 ppb |
| 2017-11-14 | 4417-006-0810 | ND |
| 2017-11-14 | 4417-015-0925 | ND |
| 2017-11-14 | 4417-015-0935 | ND |
| 2017-12-04 | 4417-009-0820 | ND |
| 2018-02-01 | 4317-008-1124 | 3.04 ppb |
| 2018-02-01 | 4317-020-1100 | 8.42 ppb |
| 2018-02-01 | 4317-052-1415 | 1.34 ppb |
| 2018-02-06 | 4417-006-0800 | ND |
| 2018-02-06 | 4317-008-1235 | 2.43 ppb |
| 2018-02-06 | 4417-017-0720 | ND |
| 2018-02-06 | 4317-018-1252 | 5.29 ppb |
| 2018-02-06 | 4317-020-1120 | 4.57 ppb |
| 2018-02-06 | 4317-052-1408 | 1.11 ppb |
| 2018-02-07 | 4417-011-0810 | ND |
| 2018-02-07 | 4417-016-1000 | ND |
| 2018-02-07 | 4417-018-0715 | 4.80 ppb |
| 2018-02-08 | 4417-005-0800 | ND |
| 2018-02-08 | 4417-008-0730 | ND |
| 2018-02-08 | 4417-019-0840 | ND |
| 2018-02-14 | 4317-007-1002 | 5.51 ppb |
| 2018-02-14 | 4317-052-0835 | ND |
| 2018-02-15 | 4417-007-0805 | 5.80 ppb |
| 2018-02-15 | 4417-014-0835 | ND |
| 2018-02-15 | 4417-067-0915 | ND |
| 2018-02-20 | 4417-003-1220 | ND |
| 2018-02-20 | 4417-009-0810 | ND |
| 2018-02-20 | 4417-015-0845 | ND |
| 2018-02-20 | 4417-056-1045 | ND |
| 2018-02-20 | 4417-058-1115 | ND |
| 2018-02-20 | 4417-072-1005 | ND |
| 2018-02-21 | 4317-052-0822 | ND |
| 2018-02-27 | 4317-008-0958 | 1.24 ppb |
| 2018-02-27 | 4317-052-0825 | ND |
| 2018-03-01 | 4417-077-1025 | ND |
| 2018-03-08 | 4417-066-0945 | ND |
| 2018-03-20 | 4317-008-1414 | 2.65 ppb |
| 2018-03-26 | 4417-020-1110 | 5.70 ppb |
| 2018-04-09 | 4417-006-0930 | ND |
| 2018-04-11 | 4317-008-0939 | 2.07 ppb |
| 2018-04-11 | 4317-052-1055 | ND |
| 2018-04-18 | 4417-007-0910 | 6.20 ppb |
| 2018-04-25 | 4317-020-1106 | 4.64 ppb |
| 2018-04-25 | 4317-052-1349 | ND |
| 2018-04-30 | 4417-023-0825 | ND |
| 2018-04-30 | 4417-024-0810 | ND |
| 2018-04-30 | 4417-055-1305 | ND |
| 2018-04-30 | 4417-078-0925 | ND |
| 2018-05-08 | 4317-008-1102 | 2.00 ppb |
| 2018-05-08 | 4317-052-1220 | ND |
| 2018-05-23 | 4317-008-1002 | 2.29 ppb |
| 2018-05-23 | 4317-052-1052 | ND |
| 2018-05-24 | 4417-008-0805 | 1.70 ppb |
| 2018-05-31 | 4317-007-0941 | 6.01 ppb |
| 2018-05-31 | 4317-052-1118 | ND |
| 2018-06-11 | 4417-020-1110 | 4.70 ppb |
| 2018-06-19 | 4417-018-0755 | 5.20 ppb |
| 2018-07-03 | 4317-018-1007 | 5.40 ppb |
| 2018-07-03 | 4317-052-0852 | ND |
| 2018-07-10 | 4317-018-1002 | 5.64 ppb |
| 2018-07-10 | 4317-052-0902 | ND |
| 2018-07-17 | 4317-007-1003 | 5.71 ppb |
| 2018-07-17 | 4317-018-0929 | 5.05 ppb |
| 2018-07-17 | 4317-052-0835 | ND |
| 2018-07-19 | 4417-007-0945 | 6.60 ppb |
| 2018-07-19 | 4417-018-1000 | 5.70 ppb |
| 2018-07-24 | 4317-007-1001 | 5.45 ppb |
| 2018-07-24 | 4317-008-0930 | 1.59 ppb |
| 2018-07-24 | 4317-018-1018 | 4.60 ppb |
| 2018-07-24 | 4317-052-0929 | ND |
| 2018-07-25 | 4417-008-0745 | 2.00 ppb |
| 2018-08-01 | 4417-020-0855 | 5.80 ppb |
| 2018-08-02 | 4317-052-0915 | ND |
| 2018-08-09 | 4317-008-1033 | 1.53 ppb |
| 2018-08-09 | 4317-018-1049 | 4.41 ppb |
| 2018-08-09 | 4317-052-1233 | ND |
| 2018-08-16 | 4317-008-1022 | 1.50 ppb |
| 2018-08-16 | 4317-018-0944 | 4.46 ppb |
| 2018-08-16 | 4317-052-0905 | ND |
| 2018-08-22 | 4317-007-0958 | 4.79 ppb |
| 2018-08-22 | 4317-008-1020 | 1.42 ppb |
| 2018-08-22 | 4317-052-0848 | ND |
| 2018-08-29 | 4317-008-0938 | 3.93 ppb |
| 2018-08-29 | 4317-008-0948 | 1.34 ppb |
| 2018-08-29 | 4317-052-1058 | ND |
| 2018-09-06 | 4317-008-1017 | 1.36 ppb |
| 2018-09-06 | 4317-018-1046 | 3.98 ppb |
| 2018-09-06 | 4317-052-1140 | ND |
| 2018-09-12 | 4317-008-1008 | 1.31 ppb |
| 2018-09-12 | 4317-018-0955 | 3.71 ppb |
| 2018-09-12 | 4317-052-0922 | ND |
| 2018-09-18 | 4317-008-1011 | 1.47 ppb |
| 2018-09-18 | 4317-018-1000 | 3.78 ppb |
| 2018-09-18 | 4317-052-0937 | ND |
| 2018-09-27 | 4317-008-0919 | 1.23 ppb |
| 2018-09-27 | 4317-018-0935 | 3.48 ppb |
| 2018-09-27 | 4317-052-1117 | ND |
| 2018-10-02 | 4317-052-1138 | ND |
| 2018-10-09 | 4317-052-1200 | ND |
| 2018-10-11 | 4417-006-1100 | ND |
| 2018-10-16 | 4317-020-1010 | 4.40 ppb |
| 2018-10-16 | 4317-052-1127 | ND |
| 2018-10-23 | 4317-020-1017 | 3.66 ppb |
| 2018-10-23 | 4317-052-0940 | ND |
| 2018-10-29 | 4417-020-0850 | 4.60 ppb |
| 2018-10-30 | 4317-020-1046 | 3.80 ppb |
| 2018-10-30 | 4317-052-1204 | ND |
| 2018-11-06 | 4417-008-1000 | 1.70 ppb |
| 2018-11-06 | 4317-008-1001 | 1.36 ppb |
| 2018-11-06 | 4417-018-0935 | 6.00 ppb |
| 2018-11-06 | 4317-052-1120 | ND |
| 2018-11-13 | 4317-007-1052 | 5.35 ppb |
| 2018-11-13 | 4317-008-1043 | 1.47 ppb |
| 2018-11-13 | 4317-052-1203 | ND |
| 2018-11-15 | 4417-007-0930 | 5.50 ppb |
| 2018-11-20 | 4317-018-0920 | 3.87 ppb |
| 2018-11-20 | 4317-020-0906 | 3.52 ppb |
| 2018-11-20 | 4317-052-1009 | ND |
| 2018-11-27 | 4317-008-1026 | 1.15 ppb |
| 2018-11-27 | 4317-018-1039 | 3.90 ppb |
| 2018-11-27 | 4317-052-1408 | ND |
| 2018-12-04 | 4317-052-1119 | ND |
| 2018-12-18 | 4317-008-0954 | 2.00 ppb |
| 2018-12-18 | 4317-020-0945 | 5.76 ppb |
| 2018-12-18 | 4317-052-1115 | ND |
| 2018-12-27 | 4317-020-1046 | 6.48 ppb |
| 2018-12-27 | 4317-052-0930 | ND |
| 2019-01-03 | 4317-018-1213 | 6.44 ppb |
| 2019-01-04 | 4317-052-1100 | ND |
| 2019-01-07 | 4417-006-0940 | ND |
| 2019-01-08 | 4317-008-1110 | 2.17 ppb |
| 2019-01-08 | 4317-018-1133 | 5.54 ppb |
| 2019-01-08 | 4317-052-1236 | ND |
| 2019-01-09 | 4417-056-0935 | ND |
| 2019-01-09 | 4417-067-1000 | ND |
| 2019-01-09 | 4417-078-0910 | ND |
| 2019-01-16 | 4317-007-1133 | 5.89 ppb |
| 2019-01-16 | 4317-052-1306 | ND |
| 2019-01-22 | 4417-003-1130 | ND |
| 2019-01-22 | 4417-005-0915 | ND |
| 2019-01-22 | 4417-009-0850 | ND |
| 2019-01-22 | 4417-011-0830 | ND |
| 2019-01-22 | 4417-014-0940 | ND |
| 2019-01-22 | 4417-016-1010 | ND |
| 2019-01-29 | 4317-008-1115 | 1.35 ppb |
| 2019-01-29 | 4317-052-1241 | ND |
| 2019-02-06 | 4417-024-0920 | ND |
| 2019-02-06 | 4317-052-1143 | ND |
| 2019-02-12 | 4317-008-1009 | 1.55 ppb |
| 2019-02-12 | 4317-052-1215 | ND |
| 2019-02-20 | 4317-052-1227 | ND |
| 2019-02-21 | 4417-007-1155 | 6.70 ppb |
| 2019-02-21 | 4417-008-1220 | 2.40 ppb |
| 2019-02-21 | 4417-015-1105 | ND |
| 2019-02-21 | 4417-018-1130 | 5.80 ppb |
| 2019-02-21 | 4417-020-1250 | 4.50 ppb |
| 2019-02-21 | 4417-058-1015 | ND |
| 2019-02-21 | 4417-072-1030 | ND |
| 2019-02-21 | 4417-077-0940 | ND |
| 2019-02-26 | 4317-020-1004 | 4.61 ppb |
| 2019-02-26 | 4317-052-1138 | ND |
| 2019-03-06 | 4417-017-0835 | ND |
| 2019-03-06 | 4317-052-1129 | ND |
| 2019-03-12 | 4317-052-1004 | ND |
| 2019-03-19 | 4317-018-1106 | 4.77 ppb |
| 2019-03-19 | 4317-018-1113 | 2.03 ppb |
| 2019-03-19 | 4317-052-1146 | ND |
| 2019-03-25 | 4417-066-1110 | ND |
| 2019-03-27 | 4317-018-1107 | ND |
| 2019-03-27 | 4317-018-1122 | 5.35 ppb |
| 2019-03-27 | 4317-052-1254 | ND |
| 2019-04-02 | 4317-007-1025 | 5.61 ppb |
| 2019-04-02 | 4317-052-1200 | ND |
| 2019-04-09 | 4317-052-1049 | ND |
| 2019-04-15 | 4417-006-1025 | ND |
| 2019-04-15 | 4417-017-1120 | ND |
| 2019-04-15 | 4417-023-1310 | ND |
| 2019-04-16 | 4417-008-0805 | 1.50 ppb |
| 2019-04-16 | 4317-008-0920 | 1.73 ppb |
| 2019-04-16 | 4317-052-1030 | ND |
| 2019-04-23 | 4317-008-0849 | 1.93 ppb |
| 2019-04-23 | 4317-052-1003 | ND |
| 2019-05-01 | 4417-007-1005 | 2.50 ppb |
| 2019-05-01 | 4417-020-0800 | 4.50 ppb |
| 2019-05-01 | 4317-020-1136 | 4.86 ppb |
| 2019-05-01 | 4317-052-1313 | ND |
| 2019-05-08 | 4317-052-1048 | ND |
| 2019-05-15 | 4317-007-1045 | 5.43 ppb |
| 2019-05-15 | 4317-052-1303 | ND |
| 2019-05-22 | 4317-020-0859 | 4.25 ppb |
| 2019-05-22 | 4317-052-1240 | ND |
| 2019-05-30 | 4317-052-0750 | ND |
| 2019-06-04 | 4317-008-1009 | 1.54 ppb |
| 2019-06-04 | 4317-052-1217 | ND |
| 2019-06-11 | 4317-007-0851 | 5.93 ppb |
| 2019-06-11 | 4317-008-0954 | 1.62 ppb |
| 2019-06-11 | 4317-052-1544 | ND |
| 2019-06-18 | 4317-008-1047 | 1.67 ppb |
| 2019-06-18 | 4317-052-1409 | ND |
| 2019-06-19 | 4417-018-0900 | 4.50 ppb |
| 2019-06-25 | 4317-008-1052 | 1.28 ppb |
| 2019-06-25 | 4317-018-1228 | 3.78 ppb |
| 2019-06-25 | 4317-020-1104 | 3.40 ppb |
| 2019-06-25 | 4317-052-1357 | ND |
| 2019-06-27 | 4417-010-0745 | ND |
| 2019-07-03 | 4317-008-0917 | 1.11 ppb |
| 2019-07-03 | 4317-018-0931 | 3.59 ppb |
| 2019-07-03 | 4317-020-0903 | 3.64 ppb |
| 2019-07-03 | 4317-052-0939 | ND |
| 2019-07-09 | 4317-007-1200 | 4.26 ppb |
| 2019-07-09 | 4317-008-1145 | 1.49 ppb |
| 2019-07-09 | 4417-017-0910 | 1.10 ppb |
| 2019-07-09 | 4317-052-1323 | ND |
| 2019-07-16 | 4317-007-1043 | 5.68 ppb |
| 2019-07-16 | 4317-008-1025 | 1.53 ppb |
| 2019-07-16 | 4317-052-1253 | ND |
| 2019-07-17 | 4417-007-0730 | 5.40 ppb |
| 2019-07-23 | 4317-007-1021 | 5.58 ppb |
| 2019-07-23 | 4317-052-1237 | ND |
| 2019-07-30 | 4317-020-1100 | 4.83 ppb |
| 2019-07-30 | 4317-052-1232 | ND |
| 2019-08-01 | 4417-017-0950 | 1.10 ppb |
| 2019-08-01 | 4417-017-1000 | 1.10 ppb |
| 2019-08-01 | 4417-018-0920 | 4.60 ppb |
| 2019-08-01 | 4417-020-0935 | 4.60 ppb |
| 2019-08-01 | 4417-058-1040 | ND |
| 2019-08-06 | 4317-020-0940 | 3.61 ppb |
| 2019-08-06 | 4317-052-1212 | ND |
| 2019-08-13 | 4317-018-1203 | 3.90 ppb |
| 2019-08-13 | 4317-020-1045 | 3.35 ppb |
| 2019-08-13 | 4317-052-1313 | ND |
| 2019-08-20 | 4317-007-1041 | 4.39 ppb |
| 2019-08-20 | 4317-018-1136 | 3.67 ppb |
| 2019-08-20 | 4317-052-1245 | ND |
| 2019-08-27 | 4317-020-1004 | 4.75 ppb |
| 2019-08-28 | 4317-020-1210 | 5.46 ppb |
| 2019-08-28 | 4317-052-1355 | ND |
| 2019-09-04 | 4317-007-1205 | 5.02 ppb |
| 2019-09-04 | 4317-018-1222 | 4.33 ppb |
| 2019-09-04 | 4317-052-1335 | ND |
| 2019-09-05 | 4417-055-1405 | ND |
| 2019-09-11 | 4317-052-1054 | ND |
| 2019-09-18 | 4417-004-1030 | ND |
| 2019-09-18 | 4317-052-1220 | ND |
| 2019-09-25 | 4317-052-1111 | ND |
| 2019-10-07 | 4417-007-1025 | 5.10 ppb |
| 2019-10-07 | 4417-017-1130 | ND |
| 2019-10-07 | 4417-018-1015 | 4.90 ppb |
| 2019-10-07 | 4417-020-0835 | 5.00 ppb |
| 2019-11-12 | 9588-007-1045 | 3.90 ppb |
| 2019-11-12 | 9588-018-1029 | 4.50 ppb |
| 2019-11-12 | 9588-052-0931 | ND |