Total trihalomethanes (TTHMs)
Santa Monica
Trihalomethanes are cancer-causing contaminants that form during water treatment with chlorine and other disinfectants. The total trihalomethanes group includes four chemicals: chloroform, bromodichloromethane, dibromochloromethane and bromoform. Read More.
Studies conducted in the U.S. and Europe have found that drinking tap water that carries disinfection byproducts increases the risk of developing bladder cancer. In animal studies, all trihalomethanes cause liver, kidney and intestinal tumors. Some human epidemiological studies also reported an association between disinfection byproducts and an increased risk of problems during pregnancy, including spontaneous miscarriage, cardiovascular defects, neural tube defects and low birth weight.
The health guideline of 0.15 parts per billion, or ppb, for the group of four trihalomethanes, or THM4/TTHM, was defined in a peer-reviewed scientific study by EWG and represents a one-in-one-million lifetime cancer risk level.
395
Samples
0
Samples exceeding legal limit (MCL)
333
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 5.62 ppb | 214 | 166 | ND - 55.0 ppb |
| 2015 | 7.68 ppb | 52 | 42 | ND - 44.4 ppb |
| 2016 | 14.3 ppb | 28 | 27 | ND - 39.9 ppb |
| 2017 | 16.0 ppb | 34 | 33 | ND - 50.4 ppb |
| 2018 | 15.8 ppb | 34 | 33 | ND - 40.2 ppb |
| 2019 | 12.3 ppb | 33 | 32 | ND - 41.7 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.15 ppb
The health guideline of 0.15 parts per billion, or ppb, for the group of four trihalomethanes, or THM4/TTHM, was defined in a peer-reviewed scientific study by EWG and represents a one-in-one-million lifetime cancer risk level.
EPA Maximum Contaminant
Level (MCL) 80 ppb
The legal limit for the group of four trihalomethanes, established in 1998, was based on the need for residual disinfectant levels in water served to customers and the cost of treatment. This limit does not fully protect against the risk of cancer due to exposure to trihalomethanes.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-05 | 9590-800-1310 | 7.20 ppb |
| 2014-03-05 | 9590-801-1252 | 21.0 ppb |
| 2014-03-05 | 9590-802-1245 | 3.70 ppb |
| 2014-03-05 | 9590-803-1300 | 8.30 ppb |
| 2014-03-05 | 9590-804-1258 | 4.10 ppb |
| 2014-03-05 | 9590-805-1239 | 30.0 ppb |
| 2014-03-05 | 9590-806-1320 | 4.80 ppb |
| 2014-03-05 | 9590-807-1312 | 4.10 ppb |
| 2014-03-10 | 9590-066-0827 | ND |
| 2014-03-10 | 9590-070-0617 | 4.90 ppb |
| 2014-03-10 | 9590-072-0607 | 8.90 ppb |
| 2014-03-17 | 9590-066-0825 | ND |
| 2014-03-17 | 9590-070-0620 | 2.30 ppb |
| 2014-03-17 | 9590-072-0613 | 6.40 ppb |
| 2014-03-24 | 9590-066-0754 | ND |
| 2014-03-24 | 9590-070-0624 | 2.90 ppb |
| 2014-03-24 | 9590-072-0616 | 7.00 ppb |
| 2014-03-24 | 9590-073-0840 | ND |
| 2014-03-31 | 9590-066-0738 | ND |
| 2014-03-31 | 9590-070-0630 | 3.50 ppb |
| 2014-03-31 | 9590-071-0634 | 4.10 ppb |
| 2014-03-31 | 9590-072-0616 | 7.80 ppb |
| 2014-04-07 | 9590-066-0717 | ND |
| 2014-04-07 | 9590-070-0614 | 4.20 ppb |
| 2014-04-07 | 9590-071-0621 | 4.40 ppb |
| 2014-04-07 | 9590-072-0604 | 8.70 ppb |
| 2014-04-14 | 9590-066-0718 | ND |
| 2014-04-14 | 9590-070-0620 | 3.80 ppb |
| 2014-04-14 | 9590-071-0616 | 4.50 ppb |
| 2014-04-14 | 9590-072-0610 | 8.20 ppb |
| 2014-04-21 | 9590-066-0809 | ND |
| 2014-04-21 | 9590-070-0623 | 3.30 ppb |
| 2014-04-21 | 9590-071-0823 | 3.80 ppb |
| 2014-04-21 | 9590-072-0615 | 6.60 ppb |
| 2014-04-28 | 9590-066-0802 | ND |
| 2014-04-28 | 9590-068-0900 | 9.50 ppb |
| 2014-04-28 | 9590-070-0621 | 3.50 ppb |
| 2014-04-28 | 9590-071-0850 | 5.10 ppb |
| 2014-04-28 | 9590-072-0606 | 7.90 ppb |
| 2014-04-28 | 9590-073-0752 | ND |
| 2014-05-05 | 9590-066-1331 | ND |
| 2014-05-05 | 9590-070-0620 | 5.30 ppb |
| 2014-05-05 | 9590-071-1818 | 4.80 ppb |
| 2014-05-05 | 9590-072-0611 | 9.00 ppb |
| 2014-05-12 | 9590-066-0810 | ND |
| 2014-05-12 | 9590-070-0610 | 3.60 ppb |
| 2014-05-12 | 9590-071-0809 | 2.70 ppb |
| 2014-05-12 | 9590-072-0600 | 7.00 ppb |
| 2014-05-19 | 9590-066-0721 | 1.30 ppb |
| 2014-05-19 | 9590-070-0611 | 4.50 ppb |
| 2014-05-19 | 9590-071-0609 | 3.80 ppb |
| 2014-05-19 | 9590-072-0600 | 8.60 ppb |
| 2014-05-27 | 9590-066-0823 | 0.620 ppb |
| 2014-05-27 | 9590-070-0558 | 4.40 ppb |
| 2014-05-27 | 9590-071-0605 | 1.50 ppb |
| 2014-05-27 | 9590-072-0601 | 8.40 ppb |
| 2014-05-27 | 9590-073-0852 | ND |
| 2014-06-02 | 9590-066-0735 | 16.0 ppb |
| 2014-06-02 | 9590-070-0614 | 6.70 ppb |
| 2014-06-02 | 9590-071-0611 | 4.10 ppb |
| 2014-06-02 | 9590-072-0604 | 15.0 ppb |
| 2014-06-02 | 9590-800-0800 | 47.0 ppb |
| 2014-06-02 | 9590-801-0724 | 30.0 ppb |
| 2014-06-02 | 9590-802-0837 | 9.00 ppb |
| 2014-06-02 | 9590-803-0739 | 32.0 ppb |
| 2014-06-02 | 9590-804-0819 | 8.60 ppb |
| 2014-06-02 | 9590-805-0648 | 55.0 ppb |
| 2014-06-02 | 9590-806-0620 | 11.0 ppb |
| 2014-06-02 | 9590-807-0735 | 16.0 ppb |
| 2014-06-09 | 9590-066-1316 | ND |
| 2014-06-09 | 9590-070-0621 | 3.70 ppb |
| 2014-06-09 | 9590-071-0848 | 4.20 ppb |
| 2014-06-09 | 9590-072-0611 | 7.00 ppb |
| 2014-06-16 | 9590-066-1339 | ND |
| 2014-06-16 | 9590-070-0607 | 3.40 ppb |
| 2014-06-16 | 9590-071-0751 | 2.90 ppb |
| 2014-06-16 | 9590-072-0558 | 6.20 ppb |
| 2014-06-23 | 9590-066-0655 | 30.0 ppb |
| 2014-06-23 | 9590-070-0612 | 2.80 ppb |
| 2014-06-23 | 9590-071-0843 | 3.00 ppb |
| 2014-06-23 | 9590-072-0603 | 6.60 ppb |
| 2014-06-23 | 9590-073-0831 | ND |
| 2014-06-30 | 9590-066-0645 | ND |
| 2014-06-30 | 9590-070-0606 | 5.30 ppb |
| 2014-06-30 | 9590-071-0755 | 5.30 ppb |
| 2014-06-30 | 9590-072-0557 | 9.50 ppb |
| 2014-07-07 | 9590-066-0902 | ND |
| 2014-07-07 | 9590-070-0607 | 5.10 ppb |
| 2014-07-07 | 9590-071-0607 | 4.90 ppb |
| 2014-07-07 | 9590-072-0556 | 7.40 ppb |
| 2014-07-14 | 9590-066-1333 | ND |
| 2014-07-14 | 9590-070-0557 | 6.10 ppb |
| 2014-07-14 | 9590-071-0808 | 6.90 ppb |
| 2014-07-14 | 9590-072-0608 | 8.60 ppb |
| 2014-07-21 | 9590-066-0727 | 0.590 ppb |
| 2014-07-21 | 9590-070-0612 | 4.20 ppb |
| 2014-07-21 | 9590-071-0608 | 4.20 ppb |
| 2014-07-21 | 9590-072-0602 | 7.70 ppb |
| 2014-07-28 | 9590-066-0726 | ND |
| 2014-07-28 | 9590-068-0619 | 8.30 ppb |
| 2014-07-28 | 9590-070-0615 | 3.50 ppb |
| 2014-07-28 | 9590-071-0627 | 3.20 ppb |
| 2014-07-28 | 9590-072-0602 | 6.50 ppb |
| 2014-07-28 | 9590-073-0832 | ND |
| 2014-08-04 | 9590-066-0731 | ND |
| 2014-08-04 | 9590-070-0613 | 3.80 ppb |
| 2014-08-04 | 9590-071-0612 | 3.70 ppb |
| 2014-08-04 | 9590-072-0605 | 7.70 ppb |
| 2014-08-11 | 9590-066-0725 | ND |
| 2014-08-11 | 9590-070-0616 | 6.30 ppb |
| 2014-08-11 | 9590-071-0606 | 4.60 ppb |
| 2014-08-11 | 9590-072-0607 | 7.90 ppb |
| 2014-08-18 | 9590-066-1313 | ND |
| 2014-08-18 | 9590-070-0847 | 3.90 ppb |
| 2014-08-18 | 9590-071-0845 | 4.70 ppb |
| 2014-08-18 | 9590-072-0617 | 7.60 ppb |
| 2014-08-25 | 9590-066-0758 | ND |
| 2014-08-25 | 9590-070-0616 | 4.00 ppb |
| 2014-08-25 | 9590-071-0950 | 4.80 ppb |
| 2014-08-25 | 9590-072-0605 | 7.50 ppb |
| 2014-08-25 | 9590-073-0814 | ND |
| 2014-09-02 | 9590-066-0745 | ND |
| 2014-09-02 | 9590-070-0609 | 2.80 ppb |
| 2014-09-02 | 9590-071-0619 | 3.00 ppb |
| 2014-09-02 | 9590-072-0600 | 6.50 ppb |
| 2014-09-02 | 9590-800-0757 | 12.0 ppb |
| 2014-09-02 | 9590-801-0719 | 27.0 ppb |
| 2014-09-02 | 9590-802-0828 | 5.40 ppb |
| 2014-09-02 | 9590-803-0736 | 32.0 ppb |
| 2014-09-02 | 9590-804-0800 | 5.70 ppb |
| 2014-09-02 | 9590-805-0641 | 29.0 ppb |
| 2014-09-02 | 9590-806-0713 | 5.30 ppb |
| 2014-09-02 | 9590-807-0724 | 5.10 ppb |
| 2014-09-08 | 9590-066-1333 | ND |
| 2014-09-08 | 9590-070-0613 | 3.20 ppb |
| 2014-09-08 | 9590-071-0637 | 3.60 ppb |
| 2014-09-08 | 9590-072-0602 | 6.20 ppb |
| 2014-09-15 | 9590-066-0827 | ND |
| 2014-09-15 | 9590-070-0616 | 3.90 ppb |
| 2014-09-15 | 9590-071-0635 | 4.20 ppb |
| 2014-09-15 | 9590-072-0606 | 7.20 ppb |
| 2014-09-22 | 9590-066-0841 | ND |
| 2014-09-22 | 9590-070-0616 | 3.40 ppb |
| 2014-09-22 | 9590-071-0636 | 3.90 ppb |
| 2014-09-22 | 9590-072-0606 | 6.30 ppb |
| 2014-09-22 | 9590-073-0818 | ND |
| 2014-09-29 | 9590-066-0844 | ND |
| 2014-09-29 | 9590-070-0625 | 2.80 ppb |
| 2014-09-29 | 9590-071-0640 | 3.10 ppb |
| 2014-09-29 | 9590-072-0616 | 5.60 ppb |
| 2014-10-06 | 9590-066-0829 | ND |
| 2014-10-06 | 9590-070-0617 | 3.00 ppb |
| 2014-10-06 | 9590-071-0645 | 3.80 ppb |
| 2014-10-06 | 9590-072-0603 | 5.30 ppb |
| 2014-10-13 | 9590-066-0834 | ND |
| 2014-10-13 | 9590-070-0616 | 2.70 ppb |
| 2014-10-13 | 9590-071-0648 | 3.30 ppb |
| 2014-10-13 | 9590-072-0606 | 5.80 ppb |
| 2014-10-20 | 9590-066-0807 | ND |
| 2014-10-20 | 9590-070-0620 | 3.40 ppb |
| 2014-10-20 | 9590-072-0626 | 8.00 ppb |
| 2014-10-21 | 9590-071-0658 | 4.40 ppb |
| 2014-10-27 | 9590-066-0835 | ND |
| 2014-10-27 | 9590-068-1051 | 10.00 ppb |
| 2014-10-27 | 9590-070-0635 | 3.30 ppb |
| 2014-10-27 | 9590-071-1115 | 3.30 ppb |
| 2014-10-27 | 9590-072-0621 | 6.60 ppb |
| 2014-10-27 | 9590-073-0845 | ND |
| 2014-11-03 | 9590-066-0838 | ND |
| 2014-11-03 | 9590-070-0618 | 3.10 ppb |
| 2014-11-03 | 9590-071-0615 | 3.20 ppb |
| 2014-11-03 | 9590-072-0608 | 6.20 ppb |
| 2014-11-10 | 9590-066-0938 | ND |
| 2014-11-10 | 9590-070-0611 | 4.20 ppb |
| 2014-11-10 | 9590-071-0627 | 4.40 ppb |
| 2014-11-10 | 9590-072-0600 | 7.70 ppb |
| 2014-11-17 | 9590-066-0830 | ND |
| 2014-11-17 | 9590-070-0608 | 2.20 ppb |
| 2014-11-17 | 9590-071-0633 | 2.50 ppb |
| 2014-11-17 | 9590-072-0620 | 3.70 ppb |
| 2014-11-24 | 9590-066-0836 | ND |
| 2014-11-24 | 9590-070-0603 | 3.60 ppb |
| 2014-11-24 | 9590-071-0605 | 4.40 ppb |
| 2014-11-24 | 9590-072-0612 | 7.20 ppb |
| 2014-11-24 | 9590-073-0845 | ND |
| 2014-12-01 | 9590-066-0844 | ND |
| 2014-12-01 | 9590-070-0603 | 3.50 ppb |
| 2014-12-01 | 9590-071-0610 | 4.20 ppb |
| 2014-12-01 | 9590-072-0611 | 6.30 ppb |
| 2014-12-01 | 9590-800-0809 | 9.70 ppb |
| 2014-12-01 | 9590-801-0736 | 19.0 ppb |
| 2014-12-01 | 9590-802-0858 | 4.60 ppb |
| 2014-12-01 | 9590-803-0750 | 12.0 ppb |
| 2014-12-01 | 9590-804-0836 | 5.40 ppb |
| 2014-12-01 | 9590-805-0656 | 26.0 ppb |
| 2014-12-01 | 9590-806-0734 | 4.50 ppb |
| 2014-12-01 | 9590-807-0744 | 4.70 ppb |
| 2014-12-08 | 9590-066-0948 | ND |
| 2014-12-08 | 9590-070-0606 | 3.40 ppb |
| 2014-12-08 | 9590-071-0639 | 3.80 ppb |
| 2014-12-08 | 9590-072-0618 | 5.30 ppb |
| 2014-12-15 | 9590-066-0838 | ND |
| 2014-12-15 | 9590-070-0608 | 2.20 ppb |
| 2014-12-15 | 9590-071-0637 | 3.00 ppb |
| 2014-12-15 | 9590-072-0616 | 5.50 ppb |
| 2014-12-22 | 9590-066-0857 | ND |
| 2014-12-22 | 9590-070-0605 | 2.40 ppb |
| 2014-12-22 | 9590-071-0645 | 2.90 ppb |
| 2014-12-22 | 9590-072-0605 | 4.40 ppb |
| 2014-12-22 | 9590-073-0817 | ND |
| 2014-12-29 | 9590-066-0747 | ND |
| 2014-12-29 | 9590-070-0609 | 4.10 ppb |
| 2014-12-29 | 9590-071-0647 | 3.80 ppb |
| 2014-12-29 | 9590-072-0618 | 5.30 ppb |
| 2015-01-05 | 9590-066-0856 | ND |
| 2015-01-05 | 9590-070-0615 | 3.50 ppb |
| 2015-01-05 | 9590-071-0646 | 3.60 ppb |
| 2015-01-05 | 9590-072-0623 | 6.50 ppb |
| 2015-01-12 | 9590-066-0840 | 0.570 ppb |
| 2015-01-12 | 9590-070-0612 | 3.90 ppb |
| 2015-01-12 | 9590-071-0655 | 4.60 ppb |
| 2015-01-12 | 9590-072-0620 | 7.00 ppb |
| 2015-01-20 | 9590-066-0847 | ND |
| 2015-01-20 | 9590-070-0615 | 3.60 ppb |
| 2015-01-20 | 9590-071-0651 | 4.00 ppb |
| 2015-01-20 | 9590-072-0622 | 8.00 ppb |
| 2015-01-26 | 9590-066-1141 | ND |
| 2015-01-26 | 9590-068-0657 | 8.10 ppb |
| 2015-01-26 | 9590-070-0614 | 4.50 ppb |
| 2015-01-26 | 9590-071-0650 | 4.80 ppb |
| 2015-01-26 | 9590-072-0623 | 8.50 ppb |
| 2015-01-26 | 9590-073-0814 | ND |
| 2015-02-02 | 9590-066-0849 | ND |
| 2015-02-02 | 9590-070-0617 | 3.00 ppb |
| 2015-02-02 | 9590-071-0640 | 3.50 ppb |
| 2015-02-02 | 9590-072-0605 | 7.30 ppb |
| 2015-02-09 | 9590-066-0906 | ND |
| 2015-02-09 | 9590-070-0616 | 4.00 ppb |
| 2015-02-09 | 9590-071-0643 | 4.60 ppb |
| 2015-02-09 | 9590-072-0605 | 7.20 ppb |
| 2015-02-17 | 9590-066-0838 | ND |
| 2015-02-17 | 9590-070-0612 | 3.40 ppb |
| 2015-02-17 | 9590-071-0657 | 4.30 ppb |
| 2015-02-17 | 9590-072-0602 | 7.00 ppb |
| 2015-03-02 | 2975-800-0820 | 6.90 ppb |
| 2015-03-02 | 2975-801-0735 | 11.1 ppb |
| 2015-03-02 | 2975-802-0809 | 5.20 ppb |
| 2015-03-02 | 2975-803-0755 | 11.7 ppb |
| 2015-03-02 | 2975-804-0751 | 7.50 ppb |
| 2015-03-02 | 2975-805-0635 | 26.5 ppb |
| 2015-03-02 | 2975-806-0704 | 5.40 ppb |
| 2015-03-02 | 2975-807-0712 | 4.80 ppb |
| 2015-04-15 | 9590-066-0655 | ND |
| 2015-04-15 | 9590-070-0710 | 7.30 ppb |
| 2015-04-15 | 9590-071-0730 | 9.00 ppb |
| 2015-04-15 | 9590-072-0715 | 14.0 ppb |
| 2015-04-21 | 9590-066-0850 | ND |
| 2015-04-21 | 9590-070-0835 | 3.90 ppb |
| 2015-04-21 | 9590-071-0833 | 5.60 ppb |
| 2015-04-21 | 9590-072-0841 | 10.00 ppb |
| 2015-06-01 | 2975-801-0718 | 32.8 ppb |
| 2015-06-01 | 2975-805-0634 | 44.4 ppb |
| 2015-08-24 | 9590-071-1111 | 4.00 ppb |
| 2015-08-24 | 9590-073-0802 | ND |
| 2015-12-01 | 2975-801-0945 | 34.4 ppb |
| 2015-12-01 | 2975-805-0935 | 39.6 ppb |
| 2016-03-01 | 2975-801-0717 | 20.0 ppb |
| 2016-03-01 | 2975-805-0707 | 21.4 ppb |
| 2016-06-01 | 2975-800-0735 | 24.4 ppb |
| 2016-06-01 | 2975-801-0718 | 9.70 ppb |
| 2016-06-01 | 2975-802-0650 | 6.00 ppb |
| 2016-06-01 | 2975-803-0726 | 28.0 ppb |
| 2016-06-01 | 2975-804-0723 | 10.9 ppb |
| 2016-06-01 | 2975-805-0655 | 27.1 ppb |
| 2016-06-01 | 2975-806-0705 | 5.60 ppb |
| 2016-06-01 | 2975-807-0712 | 5.00 ppb |
| 2016-08-22 | 9590-071-1018 | 2.10 ppb |
| 2016-08-22 | 9590-073-0839 | ND |
| 2016-09-01 | 2975-800-0712 | 30.9 ppb |
| 2016-09-01 | 2975-801-0702 | 17.3 ppb |
| 2016-09-01 | 2975-802-0713 | 3.60 ppb |
| 2016-09-01 | 2975-803-0720 | 36.5 ppb |
| 2016-09-01 | 2975-804-0704 | 14.3 ppb |
| 2016-09-01 | 2975-805-0653 | 33.7 ppb |
| 2016-09-01 | 2975-806-0641 | 3.80 ppb |
| 2016-09-01 | 2975-807-0650 | 3.70 ppb |
| 2016-12-01 | 2975-800-0721 | 18.7 ppb |
| 2016-12-01 | 2975-801-0701 | 10.7 ppb |
| 2016-12-01 | 2975-802-0736 | 3.50 ppb |
| 2016-12-01 | 2975-803-0713 | 39.9 ppb |
| 2016-12-01 | 2975-804-0724 | 3.50 ppb |
| 2016-12-01 | 2975-805-0649 | 12.7 ppb |
| 2016-12-01 | 2975-806-0703 | 3.70 ppb |
| 2016-12-01 | 2975-807-0711 | 3.90 ppb |
| 2017-03-01 | 2975-801-0721 | 28.5 ppb |
| 2017-03-01 | 2975-803-0727 | 31.5 ppb |
| 2017-03-01 | 2975-805-0704 | 22.2 ppb |
| 2017-03-01 | 2975-806-0742 | 3.20 ppb |
| 2017-03-01 | 2975-807-0735 | 2.90 ppb |
| 2017-03-02 | 2975-800-1003 | 23.2 ppb |
| 2017-03-02 | 2975-802-1027 | 6.30 ppb |
| 2017-03-02 | 2975-804-1017 | 17.7 ppb |
| 2017-06-01 | 2975-800-0710 | 40.9 ppb |
| 2017-06-01 | 2975-801-0655 | 27.0 ppb |
| 2017-06-01 | 2975-802-0721 | 5.30 ppb |
| 2017-06-01 | 2975-803-0702 | 26.9 ppb |
| 2017-06-01 | 2975-804-0706 | 11.0 ppb |
| 2017-06-01 | 2975-805-0644 | 26.5 ppb |
| 2017-06-01 | 2975-806-0639 | 4.50 ppb |
| 2017-06-01 | 2975-807-0650 | 4.60 ppb |
| 2017-08-28 | 9590-071-0625 | 2.80 ppb |
| 2017-08-28 | 9590-073-0748 | ND |
| 2017-09-06 | 2975-800-0722 | 17.5 ppb |
| 2017-09-06 | 2975-801-0748 | 21.7 ppb |
| 2017-09-06 | 2975-802-0814 | 4.40 ppb |
| 2017-09-06 | 2975-803-0733 | 37.1 ppb |
| 2017-09-06 | 2975-804-0757 | 13.1 ppb |
| 2017-09-06 | 2975-805-0805 | 25.3 ppb |
| 2017-09-06 | 2975-806-0735 | 4.00 ppb |
| 2017-09-06 | 2975-807-0743 | 3.80 ppb |
| 2017-12-05 | 2975-800-0743 | 22.5 ppb |
| 2017-12-05 | 2975-801-0719 | 11.9 ppb |
| 2017-12-05 | 2975-802-0758 | 5.20 ppb |
| 2017-12-05 | 2975-803-0731 | 50.4 ppb |
| 2017-12-05 | 2975-804-0742 | 13.3 ppb |
| 2017-12-05 | 2975-805-0707 | 18.2 ppb |
| 2017-12-05 | 2975-806-0716 | 4.60 ppb |
| 2017-12-05 | 2975-807-0726 | 5.00 ppb |
| 2018-03-06 | 2975-800-0742 | 37.4 ppb |
| 2018-03-06 | 2975-801-0718 | 27.8 ppb |
| 2018-03-06 | 2975-802-0757 | 5.60 ppb |
| 2018-03-06 | 2975-803-0731 | 22.0 ppb |
| 2018-03-06 | 2975-804-0739 | 18.1 ppb |
| 2018-03-06 | 2975-805-0706 | 28.6 ppb |
| 2018-03-06 | 2975-806-0725 | 4.70 ppb |
| 2018-03-06 | 2975-807-0731 | 4.50 ppb |
| 2018-06-05 | 2975-800-0720 | 31.6 ppb |
| 2018-06-05 | 2975-801-0705 | 12.9 ppb |
| 2018-06-05 | 2975-802-0732 | 12.1 ppb |
| 2018-06-05 | 2975-803-0713 | 22.1 ppb |
| 2018-06-05 | 2975-804-0757 | 15.4 ppb |
| 2018-06-05 | 2975-805-0929 | 17.8 ppb |
| 2018-06-05 | 2975-806-0706 | 5.40 ppb |
| 2018-06-05 | 2975-807-0714 | 5.30 ppb |
| 2018-08-06 | 9590-071-0632 | 8.20 ppb |
| 2018-08-06 | 9590-073-0645 | ND |
| 2018-09-05 | 2975-800-0732 | 16.3 ppb |
| 2018-09-05 | 2975-801-0706 | 18.0 ppb |
| 2018-09-05 | 2975-802-0735 | 7.70 ppb |
| 2018-09-05 | 2975-803-0714 | 16.5 ppb |
| 2018-09-05 | 2975-804-0722 | 13.1 ppb |
| 2018-09-05 | 2975-805-0653 | 22.0 ppb |
| 2018-09-05 | 2975-806-0701 | 6.40 ppb |
| 2018-09-05 | 2975-807-0710 | 6.70 ppb |
| 2018-12-04 | 2975-800-0742 | 40.2 ppb |
| 2018-12-04 | 2975-801-0719 | 29.9 ppb |
| 2018-12-04 | 2975-802-0803 | 5.80 ppb |
| 2018-12-04 | 2975-803-0730 | 33.2 ppb |
| 2018-12-04 | 2975-804-0750 | 8.10 ppb |
| 2018-12-04 | 2975-805-0708 | 23.8 ppb |
| 2018-12-04 | 2975-806-0724 | 6.00 ppb |
| 2018-12-04 | 2975-807-0733 | 5.60 ppb |
| 2019-03-05 | 2975-800-0727 | 16.0 ppb |
| 2019-03-05 | 2975-801-0709 | 10.1 ppb |
| 2019-03-05 | 2975-802-0728 | 5.70 ppb |
| 2019-03-05 | 2975-803-0718 | 10.7 ppb |
| 2019-03-05 | 2975-804-0714 | 6.40 ppb |
| 2019-03-05 | 2975-805-0656 | 6.70 ppb |
| 2019-03-05 | 2975-806-0654 | 5.80 ppb |
| 2019-03-05 | 2975-807-0702 | 5.60 ppb |
| 2019-06-04 | 2975-800-0644 | 22.8 ppb |
| 2019-06-04 | 2975-801-0626 | 15.4 ppb |
| 2019-06-04 | 2975-802-0641 | 7.20 ppb |
| 2019-06-04 | 2975-803-0635 | 17.7 ppb |
| 2019-06-04 | 2975-804-0658 | 9.90 ppb |
| 2019-06-04 | 2975-805-0614 | 16.0 ppb |
| 2019-06-04 | 2975-806-0630 | 7.30 ppb |
| 2019-06-04 | 2975-807-0708 | 7.00 ppb |
| 2019-08-05 | 9590-071-1125 | 4.70 ppb |
| 2019-08-05 | 9590-073-0828 | ND |
| 2019-09-04 | 2975-800-0750 | 16.6 ppb |
| 2019-09-04 | 2975-801-0720 | 14.9 ppb |
| 2019-09-04 | 2975-802-0736 | 27.4 ppb |
| 2019-09-04 | 2975-803-0740 | 12.8 ppb |
| 2019-09-04 | 2975-804-0723 | 13.6 ppb |
| 2019-09-04 | 2975-805-0700 | 41.7 ppb |
| 2019-09-04 | 2975-806-0704 | 6.30 ppb |
| 2019-09-04 | 2975-807-0713 | 6.20 ppb |
| 2019-12-03 | 2975-800-0730 | 15.9 ppb |
| 2019-12-03 | 2975-802-0800 | 18.1 ppb |
| 2019-12-03 | 2975-803-0720 | 11.5 ppb |
| 2019-12-03 | 2975-804-0742 | 21.5 ppb |
| 2019-12-03 | 2975-805-0657 | 14.0 ppb |
| 2019-12-03 | 2975-806-0715 | 4.50 ppb |
| 2019-12-03 | 2975-807-0725 | 4.50 ppb |