Total trihalomethanes (TTHMs)
City of Stockton
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 37.7 ppb | 76 | 75 | ND - 110.0 ppb |
2015 | 45.5 ppb | 76 | 71 | ND - 140.0 ppb |
2016 | 35.9 ppb | 76 | 76 | 1.60 ppb - 88.0 ppb |
2017 | 29.3 ppb | 76 | 76 | 1.000 ppb - 93.7 ppb |
2018 | 32.3 ppb | 76 | 76 | 14.0 ppb - 70.0 ppb |
2019 | 44.6 ppb | 95 | 94 | ND - 102.4 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 |
---|---|---|
2014-01-13 | 5810-900-0828 | 22.0 ppb |
2014-01-13 | 5810-901-0905 | 2.40 ppb |
2014-01-13 | 5810-902-1020 | 18.0 ppb |
2014-01-13 | 5810-907-1127 | 20.0 ppb |
2014-01-13 | 5810-913-1100 | 21.0 ppb |
2014-01-14 | 5810-914-0843 | 68.0 ppb |
2014-01-14 | 5810-915-0924 | 60.0 ppb |
2014-01-14 | 5810-916-0948 | 110.0 ppb |
2014-01-14 | 5810-917-1019 | 68.0 ppb |
2014-01-14 | 5810-918-1050 | 72.0 ppb |
2014-01-15 | 5810-903-0753 | 63.0 ppb |
2014-01-15 | 5810-904-0838 | 57.0 ppb |
2014-01-15 | 5810-905-0900 | 62.0 ppb |
2014-01-15 | 5810-906-0959 | 62.0 ppb |
2014-01-15 | 5810-908-0808 | 26.0 ppb |
2014-01-15 | 5810-909-0912 | 25.0 ppb |
2014-01-15 | 5810-910-0929 | 31.0 ppb |
2014-01-15 | 5810-911-1002 | 27.0 ppb |
2014-01-15 | 5810-912-0946 | 26.0 ppb |
2014-04-16 | 5810-900-0743 | 31.0 ppb |
2014-04-16 | 5810-901-0800 | 26.0 ppb |
2014-04-16 | 5810-902-0819 | 27.0 ppb |
2014-04-16 | 5810-903-0815 | 35.0 ppb |
2014-04-16 | 5810-904-0907 | 41.0 ppb |
2014-04-16 | 5810-905-0929 | 41.0 ppb |
2014-04-16 | 5810-906-0957 | 27.0 ppb |
2014-04-16 | 5810-907-1020 | 29.0 ppb |
2014-04-16 | 5810-908-1114 | 39.0 ppb |
2014-04-16 | 5810-909-1136 | 34.0 ppb |
2014-04-16 | 5810-910-1228 | 40.0 ppb |
2014-04-16 | 5810-911-1210 | 38.0 ppb |
2014-04-16 | 5810-912-1151 | 36.0 ppb |
2014-04-16 | 5810-913-0833 | 25.0 ppb |
2014-04-16 | 5810-914-0846 | 19.0 ppb |
2014-04-16 | 5810-915-0900 | 18.0 ppb |
2014-04-16 | 5810-916-0916 | 52.0 ppb |
2014-04-16 | 5810-917-0934 | 40.0 ppb |
2014-04-16 | 5810-918-0800 | 25.0 ppb |
2014-07-16 | 5810-900-0740 | 3.30 ppb |
2014-07-16 | 5810-901-0752 | ND |
2014-07-16 | 5810-902-0815 | 19.0 ppb |
2014-07-16 | 5810-903-0814 | 12.0 ppb |
2014-07-16 | 5810-904-0845 | 71.0 ppb |
2014-07-16 | 5810-905-0900 | 62.0 ppb |
2014-07-16 | 5810-906-0926 | 21.0 ppb |
2014-07-16 | 5810-907-1020 | 31.0 ppb |
2014-07-16 | 5810-908-0938 | 28.0 ppb |
2014-07-16 | 5810-909-1005 | 23.0 ppb |
2014-07-16 | 5810-910-1020 | 36.0 ppb |
2014-07-16 | 5810-911-1057 | 33.0 ppb |
2014-07-16 | 5810-912-1040 | 31.0 ppb |
2014-07-16 | 5810-913-0830 | 10.00 ppb |
2014-07-16 | 5810-914-0852 | 13.0 ppb |
2014-07-16 | 5810-915-0908 | 74.0 ppb |
2014-07-16 | 5810-916-0940 | 88.0 ppb |
2014-07-16 | 5810-917-1003 | 91.0 ppb |
2014-07-16 | 5810-918-0800 | 73.0 ppb |
2014-10-15 | 5810-900-0802 | 31.0 ppb |
2014-10-15 | 5810-901-0906 | 47.0 ppb |
2014-10-15 | 5810-902-0850 | 36.0 ppb |
2014-10-15 | 5810-903-0829 | 34.0 ppb |
2014-10-15 | 5810-904-0849 | 58.0 ppb |
2014-10-15 | 5810-905-0905 | 43.0 ppb |
2014-10-15 | 5810-906-1045 | 27.0 ppb |
2014-10-15 | 5810-907-1106 | 25.0 ppb |
2014-10-15 | 5810-908-0948 | 29.0 ppb |
2014-10-15 | 5810-909-1022 | 32.0 ppb |
2014-10-15 | 5810-910-1049 | 42.0 ppb |
2014-10-15 | 5810-911-1042 | 35.0 ppb |
2014-10-15 | 5810-912-1031 | 40.0 ppb |
2014-10-15 | 5810-913-0815 | 38.0 ppb |
2014-10-15 | 5810-914-0921 | 24.0 ppb |
2014-10-15 | 5810-915-0935 | 20.0 ppb |
2014-10-15 | 5810-916-1017 | 33.0 ppb |
2014-10-15 | 5810-917-0955 | 46.0 ppb |
2014-10-15 | 5810-918-0801 | 41.0 ppb |
2015-01-14 | 5810-900-0750 | 41.0 ppb |
2015-01-14 | 5810-901-0813 | 20.0 ppb |
2015-01-14 | 5810-902-0832 | 45.0 ppb |
2015-01-14 | 5810-903-0817 | 43.0 ppb |
2015-01-14 | 5810-904-0844 | 61.0 ppb |
2015-01-14 | 5810-905-0915 | 61.0 ppb |
2015-01-14 | 5810-906-1050 | 37.0 ppb |
2015-01-14 | 5810-907-1117 | 48.0 ppb |
2015-01-14 | 5810-908-1003 | 47.0 ppb |
2015-01-14 | 5810-909-1040 | 52.0 ppb |
2015-01-14 | 5810-910-1115 | 60.0 ppb |
2015-01-14 | 5810-911-1210 | 38.0 ppb |
2015-01-14 | 5810-912-1140 | 48.0 ppb |
2015-01-14 | 5810-913-0854 | 41.0 ppb |
2015-01-14 | 5810-914-0919 | 62.0 ppb |
2015-01-14 | 5810-915-0939 | 62.0 ppb |
2015-01-14 | 5810-916-0952 | 81.0 ppb |
2015-01-14 | 5810-917-1021 | 88.0 ppb |
2015-01-14 | 5810-918-0749 | 70.0 ppb |
2015-04-15 | 5810-900-0820 | 7.80 ppb |
2015-04-15 | 5810-901-0842 | ND |
2015-04-15 | 5810-902-0914 | 11.0 ppb |
2015-04-15 | 5810-903-0850 | 24.0 ppb |
2015-04-15 | 5810-904-0945 | 39.0 ppb |
2015-04-15 | 5810-905-0930 | 38.0 ppb |
2015-04-15 | 5810-906-1157 | 25.0 ppb |
2015-04-15 | 5810-907-1221 | 30.0 ppb |
2015-04-15 | 5810-908-1035 | 72.0 ppb |
2015-04-15 | 5810-909-1155 | 29.0 ppb |
2015-04-15 | 5810-910-1140 | 54.0 ppb |
2015-04-15 | 5810-911-1105 | 38.0 ppb |
2015-04-15 | 5810-912-1120 | 30.0 ppb |
2015-04-15 | 5810-913-0957 | 2.10 ppb |
2015-04-15 | 5810-914-1022 | 22.0 ppb |
2015-04-15 | 5810-915-1034 | 31.0 ppb |
2015-04-15 | 5810-916-1118 | 46.0 ppb |
2015-04-15 | 5810-917-1059 | 43.0 ppb |
2015-04-15 | 5810-918-0830 | 40.0 ppb |
2015-07-15 | 5810-900-0748 | 23.0 ppb |
2015-07-15 | 5810-901-0812 | 24.0 ppb |
2015-07-15 | 5810-902-0841 | 60.0 ppb |
2015-07-15 | 5810-903-0827 | 69.0 ppb |
2015-07-15 | 5810-904-0843 | 87.0 ppb |
2015-07-15 | 5810-905-0902 | 87.0 ppb |
2015-07-15 | 5810-906-1048 | 60.0 ppb |
2015-07-15 | 5810-907-1108 | 50.0 ppb |
2015-07-15 | 5810-908-1125 | 68.0 ppb |
2015-07-15 | 5810-909-1105 | 32.0 ppb |
2015-07-15 | 5810-910-1046 | 64.0 ppb |
2015-07-15 | 5810-911-0948 | 49.0 ppb |
2015-07-15 | 5810-912-1020 | 39.0 ppb |
2015-07-15 | 5810-913-0902 | 70.0 ppb |
2015-07-15 | 5810-914-0930 | 52.0 ppb |
2015-07-15 | 5810-915-0954 | 45.0 ppb |
2015-07-15 | 5810-916-1020 | 69.0 ppb |
2015-07-15 | 5810-917-1120 | 99.0 ppb |
2015-07-15 | 5810-918-0810 | 68.0 ppb |
2015-10-14 | 5810-900-0825 | ND |
2015-10-14 | 5810-901-0900 | ND |
2015-10-14 | 5810-902-0915 | 0.500 ppb |
2015-10-14 | 5810-903-0815 | ND |
2015-10-14 | 5810-904-0848 | 74.0 ppb |
2015-10-14 | 5810-905-0920 | 59.0 ppb |
2015-10-14 | 5810-906-1105 | 1.40 ppb |
2015-10-14 | 5810-907-1045 | 2.00 ppb |
2015-10-14 | 5810-908-1000 | 48.0 ppb |
2015-10-14 | 5810-909-1022 | 27.0 ppb |
2015-10-14 | 5810-910-1048 | 54.0 ppb |
2015-10-14 | 5810-911-1106 | 41.0 ppb |
2015-10-14 | 5810-912-1129 | 36.0 ppb |
2015-10-14 | 5810-913-0930 | 0.900 ppb |
2015-10-14 | 5810-914-0945 | ND |
2015-10-14 | 5810-915-1000 | 110.0 ppb |
2015-10-14 | 5810-916-1015 | 140.0 ppb |
2015-10-14 | 5810-917-1030 | 100.0 ppb |
2015-10-14 | 5810-918-0750 | 66.0 ppb |
2016-01-28 | 5810-900-0732 | 39.0 ppb |
2016-01-28 | 5810-901-0751 | 59.0 ppb |
2016-01-28 | 5810-902-0809 | 25.0 ppb |
2016-01-28 | 5810-903-0828 | 22.0 ppb |
2016-01-28 | 5810-904-0954 | 66.0 ppb |
2016-01-28 | 5810-905-1015 | 64.0 ppb |
2016-01-28 | 5810-906-1048 | 20.0 ppb |
2016-01-28 | 5810-907-1030 | 5.20 ppb |
2016-01-28 | 5810-908-1200 | 76.0 ppb |
2016-01-28 | 5810-909-1135 | 62.0 ppb |
2016-01-28 | 5810-910-1115 | 81.0 ppb |
2016-01-28 | 5810-911-1040 | 88.0 ppb |
2016-01-28 | 5810-912-1100 | 66.0 ppb |
2016-01-28 | 5810-913-0828 | 36.0 ppb |
2016-01-28 | 5810-914-0851 | 61.0 ppb |
2016-01-28 | 5810-915-0910 | 61.0 ppb |
2016-01-28 | 5810-916-0932 | 74.0 ppb |
2016-01-28 | 5810-917-0954 | 66.0 ppb |
2016-01-28 | 5810-918-0810 | 63.0 ppb |
2016-04-13 | 5810-900-0800 | 26.0 ppb |
2016-04-13 | 5810-901-0820 | 27.0 ppb |
2016-04-13 | 5810-902-0839 | 27.0 ppb |
2016-04-13 | 5810-903-0823 | 32.0 ppb |
2016-04-13 | 5810-904-0932 | 26.0 ppb |
2016-04-13 | 5810-905-0951 | 28.0 ppb |
2016-04-13 | 5810-906-1100 | 29.0 ppb |
2016-04-13 | 5810-907-1129 | 31.0 ppb |
2016-04-13 | 5810-908-0908 | 71.0 ppb |
2016-04-13 | 5810-909-0851 | 59.0 ppb |
2016-04-13 | 5810-910-1056 | 78.0 ppb |
2016-04-13 | 5810-911-1125 | 64.0 ppb |
2016-04-13 | 5810-912-1148 | 66.0 ppb |
2016-04-13 | 5810-913-0855 | 28.0 ppb |
2016-04-13 | 5810-914-0920 | 24.0 ppb |
2016-04-13 | 5810-915-0935 | 23.0 ppb |
2016-04-13 | 5810-916-0957 | 25.0 ppb |
2016-04-13 | 5810-917-1015 | 26.0 ppb |
2016-04-13 | 5810-918-0801 | 31.0 ppb |
2016-07-13 | 5867-900-0800 | 8.20 ppb |
2016-07-13 | 5867-901-0825 | 13.9 ppb |
2016-07-13 | 5867-902-0900 | 14.9 ppb |
2016-07-13 | 5867-903-0810 | 13.6 ppb |
2016-07-13 | 5867-904-0852 | 19.6 ppb |
2016-07-13 | 5867-905-0907 | 18.3 ppb |
2016-07-13 | 5867-906-1130 | 11.1 ppb |
2016-07-13 | 5867-907-1149 | 9.30 ppb |
2016-07-13 | 5867-908-0930 | 63.7 ppb |
2016-07-13 | 5867-909-0941 | 44.2 ppb |
2016-07-13 | 5867-910-0955 | 68.3 ppb |
2016-07-13 | 5867-911-1020 | 45.5 ppb |
2016-07-13 | 5867-912-1008 | 46.1 ppb |
2016-07-13 | 5867-913-0929 | 1.60 ppb |
2016-07-13 | 5867-914-0950 | 6.00 ppb |
2016-07-13 | 5867-915-1009 | 10.8 ppb |
2016-07-13 | 5867-916-1028 | 16.8 ppb |
2016-07-13 | 5867-917-1105 | 17.1 ppb |
2016-07-13 | 5867-918-0752 | 14.4 ppb |
2016-10-12 | 5867-900-0800 | 11.9 ppb |
2016-10-12 | 5867-901-0830 | 21.0 ppb |
2016-10-12 | 5867-902-0848 | 22.2 ppb |
2016-10-12 | 5867-903-0828 | 23.7 ppb |
2016-10-12 | 5867-904-0918 | 23.5 ppb |
2016-10-12 | 5867-905-0933 | 24.2 ppb |
2016-10-12 | 5867-906-1113 | 22.9 ppb |
2016-10-12 | 5867-907-1135 | 21.0 ppb |
2016-10-12 | 5867-908-1014 | 60.4 ppb |
2016-10-12 | 5867-909-1041 | 34.3 ppb |
2016-10-12 | 5867-910-1108 | 48.0 ppb |
2016-10-12 | 5867-911-1130 | 37.7 ppb |
2016-10-12 | 5867-912-1149 | 34.5 ppb |
2016-10-12 | 5867-913-0915 | 26.0 ppb |
2016-10-12 | 5867-914-0936 | 16.3 ppb |
2016-10-12 | 5867-915-0953 | 25.5 ppb |
2016-10-12 | 5867-916-1015 | 22.6 ppb |
2016-10-12 | 5867-917-1039 | 28.6 ppb |
2016-10-12 | 5867-918-0810 | 21.9 ppb |
2017-01-18 | 5867-900-0800 | 42.8 ppb |
2017-01-18 | 5867-901-0845 | 44.9 ppb |
2017-01-18 | 5867-902-0910 | 47.3 ppb |
2017-01-18 | 5867-903-0754 | 43.4 ppb |
2017-01-18 | 5867-904-0850 | 45.9 ppb |
2017-01-18 | 5867-905-0909 | 39.2 ppb |
2017-01-18 | 5867-906-1255 | 36.8 ppb |
2017-01-18 | 5867-907-1330 | 38.4 ppb |
2017-01-18 | 5867-908-0958 | 68.4 ppb |
2017-01-18 | 5867-909-1021 | 12.7 ppb |
2017-01-18 | 5867-910-1100 | 93.7 ppb |
2017-01-18 | 5867-911-1154 | 73.5 ppb |
2017-01-18 | 5867-912-1131 | 37.6 ppb |
2017-01-18 | 5867-913-0935 | 52.0 ppb |
2017-01-18 | 5867-914-0955 | 45.4 ppb |
2017-01-18 | 5867-915-1025 | 44.8 ppb |
2017-01-18 | 5867-916-1045 | 44.2 ppb |
2017-01-18 | 5867-917-1135 | 38.1 ppb |
2017-01-18 | 5867-918-0741 | 44.6 ppb |
2017-04-19 | 5867-900-0802 | 18.0 ppb |
2017-04-19 | 5867-901-0821 | 28.0 ppb |
2017-04-19 | 5867-902-0838 | 22.0 ppb |
2017-04-19 | 5867-903-0850 | 29.0 ppb |
2017-04-19 | 5867-904-1020 | 30.0 ppb |
2017-04-19 | 5867-905-1045 | 21.0 ppb |
2017-04-19 | 5867-906-1140 | 27.0 ppb |
2017-04-19 | 5867-907-1206 | 26.0 ppb |
2017-04-19 | 5867-908-1255 | 55.0 ppb |
2017-04-19 | 5867-909-1220 | 1.000 ppb |
2017-04-19 | 5867-910-1155 | 19.0 ppb |
2017-04-19 | 5867-911-1115 | 2.00 ppb |
2017-04-19 | 5867-912-1135 | 2.00 ppb |
2017-04-19 | 5867-913-0900 | 26.0 ppb |
2017-04-19 | 5867-914-0923 | 21.0 ppb |
2017-04-19 | 5867-915-0950 | 20.0 ppb |
2017-04-19 | 5867-916-1023 | 26.0 ppb |
2017-04-19 | 5867-917-1113 | 20.0 ppb |
2017-04-19 | 5867-918-0825 | 29.0 ppb |
2017-07-26 | 5867-900-0740 | 20.0 ppb |
2017-07-26 | 5867-901-0815 | 25.0 ppb |
2017-07-26 | 5867-902-0845 | 20.0 ppb |
2017-07-26 | 5867-903-0757 | 18.0 ppb |
2017-07-26 | 5867-904-0814 | 22.0 ppb |
2017-07-26 | 5867-905-0838 | 24.0 ppb |
2017-07-26 | 5867-906-1215 | 16.0 ppb |
2017-07-26 | 5867-907-1245 | 18.0 ppb |
2017-07-26 | 5867-908-1001 | 23.0 ppb |
2017-07-26 | 5867-909-1032 | 43.0 ppb |
2017-07-26 | 5867-910-1051 | 45.0 ppb |
2017-07-26 | 5867-911-1109 | 50.0 ppb |
2017-07-26 | 5867-912-1129 | 50.0 ppb |
2017-07-26 | 5867-913-0915 | 16.0 ppb |
2017-07-26 | 5867-914-0945 | 22.0 ppb |
2017-07-26 | 5867-915-1015 | 17.0 ppb |
2017-07-26 | 5867-916-1045 | 24.0 ppb |
2017-07-26 | 5867-917-1130 | 26.0 ppb |
2017-07-26 | 5867-918-0739 | 25.0 ppb |
2017-10-18 | 5867-900-0755 | 15.0 ppb |
2017-10-18 | 5867-901-0825 | 18.0 ppb |
2017-10-18 | 5867-902-0855 | 21.0 ppb |
2017-10-18 | 5867-903-0823 | 18.0 ppb |
2017-10-18 | 5867-904-0842 | 16.0 ppb |
2017-10-18 | 5867-905-0904 | 19.0 ppb |
2017-10-18 | 5867-906-1135 | 12.0 ppb |
2017-10-18 | 5867-907-1155 | 18.0 ppb |
2017-10-18 | 5867-908-1012 | 28.0 ppb |
2017-10-18 | 5867-909-1039 | 42.0 ppb |
2017-10-18 | 5867-910-1100 | 39.0 ppb |
2017-10-18 | 5867-911-1120 | 28.0 ppb |
2017-10-18 | 5867-912-1141 | 29.0 ppb |
2017-10-18 | 5867-913-0915 | 17.0 ppb |
2017-10-18 | 5867-914-0935 | 15.0 ppb |
2017-10-18 | 5867-915-1005 | 14.0 ppb |
2017-10-18 | 5867-916-1025 | 24.0 ppb |
2017-10-18 | 5867-917-1100 | 12.0 ppb |
2017-10-18 | 5867-918-0801 | 21.0 ppb |
2018-01-17 | 5867-900-0800 | 60.0 ppb |
2018-01-17 | 5867-901-0830 | 47.0 ppb |
2018-01-17 | 5867-902-0900 | 59.0 ppb |
2018-01-17 | 5867-903-0823 | 56.0 ppb |
2018-01-17 | 5867-904-0858 | 50.0 ppb |
2018-01-17 | 5867-905-0926 | 49.0 ppb |
2018-01-17 | 5867-906-1125 | 51.0 ppb |
2018-01-17 | 5867-907-1150 | 49.0 ppb |
2018-01-17 | 5867-908-1104 | 28.0 ppb |
2018-01-17 | 5867-909-1209 | 34.0 ppb |
2018-01-17 | 5867-910-1230 | 33.0 ppb |
2018-01-17 | 5867-911-1303 | 32.0 ppb |
2018-01-17 | 5867-912-1249 | 30.0 ppb |
2018-01-17 | 5867-913-0920 | 48.0 ppb |
2018-01-17 | 5867-914-0940 | 49.0 ppb |
2018-01-17 | 5867-915-1000 | 43.0 ppb |
2018-01-17 | 5867-916-1020 | 62.0 ppb |
2018-01-17 | 5867-917-1040 | 53.0 ppb |
2018-01-17 | 5867-918-0755 | 58.0 ppb |
2018-04-18 | 9590-900-0737 | 16.0 ppb |
2018-04-18 | 9590-901-0802 | 17.0 ppb |
2018-04-18 | 9590-902-0841 | 17.0 ppb |
2018-04-18 | 9590-903-0825 | 18.0 ppb |
2018-04-18 | 9590-904-0900 | 19.0 ppb |
2018-04-18 | 9590-905-0930 | 17.0 ppb |
2018-04-18 | 9590-906-1104 | 15.0 ppb |
2018-04-18 | 9590-907-1123 | 17.0 ppb |
2018-04-18 | 9590-908-1040 | 56.0 ppb |
2018-04-18 | 9590-909-1110 | 55.0 ppb |
2018-04-18 | 9590-910-1140 | 70.0 ppb |
2018-04-18 | 9590-911-1225 | 70.0 ppb |
2018-04-18 | 9590-912-1205 | 64.0 ppb |
2018-04-18 | 9590-913-0858 | 15.0 ppb |
2018-04-18 | 9590-914-0916 | 14.0 ppb |
2018-04-18 | 9590-915-0936 | 14.0 ppb |
2018-04-18 | 9590-916-0956 | 16.0 ppb |
2018-04-18 | 9590-917-1021 | 21.0 ppb |
2018-04-18 | 9590-918-0755 | 17.0 ppb |
2018-07-18 | 9590-900-0727 | 22.0 ppb |
2018-07-18 | 9590-901-0756 | 24.0 ppb |
2018-07-18 | 9590-902-0834 | 21.0 ppb |
2018-07-18 | 9590-906-1147 | 20.0 ppb |
2018-07-18 | 9590-907-1218 | 20.0 ppb |
2018-07-18 | 9590-913-0857 | 26.0 ppb |
2018-07-18 | 9590-914-0918 | 23.0 ppb |
2018-07-18 | 9590-915-0937 | 19.0 ppb |
2018-07-18 | 9590-916-1025 | 32.0 ppb |
2018-07-18 | 9590-917-1100 | 27.0 ppb |
2018-07-25 | 9590-903-0838 | 32.0 ppb |
2018-07-25 | 9590-904-0948 | 25.0 ppb |
2018-07-25 | 9590-905-0915 | 22.0 ppb |
2018-07-25 | 9590-908-1120 | 26.0 ppb |
2018-07-25 | 9590-909-1200 | 24.0 ppb |
2018-07-25 | 9590-911-1332 | 32.0 ppb |
2018-07-25 | 9590-912-1259 | 24.0 ppb |
2018-07-25 | 9590-918-0801 | 25.0 ppb |
2018-08-22 | 9590-910-0843 | 52.0 ppb |
2018-10-17 | 9590-900-0816 | 29.0 ppb |
2018-10-17 | 9590-901-0830 | 29.0 ppb |
2018-10-17 | 9590-902-0924 | 30.0 ppb |
2018-10-17 | 9590-903-0923 | 27.0 ppb |
2018-10-17 | 9590-904-1032 | 29.0 ppb |
2018-10-17 | 9590-905-1004 | 27.0 ppb |
2018-10-17 | 9590-906-1221 | 27.0 ppb |
2018-10-17 | 9590-907-1242 | 27.0 ppb |
2018-10-17 | 9590-908-1106 | 21.0 ppb |
2018-10-17 | 9590-909-1124 | 23.0 ppb |
2018-10-17 | 9590-910-1300 | 37.0 ppb |
2018-10-17 | 9590-911-1241 | 25.0 ppb |
2018-10-17 | 9590-912-1202 | 23.0 ppb |
2018-10-17 | 9590-913-0948 | 27.0 ppb |
2018-10-17 | 9590-914-1016 | 25.0 ppb |
2018-10-17 | 9590-915-1040 | 25.0 ppb |
2018-10-17 | 9590-916-1101 | 33.0 ppb |
2018-10-17 | 9590-917-1136 | 30.0 ppb |
2018-10-17 | 9590-918-0834 | 28.0 ppb |
2019-01-16 | 1610-900-0740 | 66.9 ppb |
2019-01-16 | 1610-901-0815 | 68.3 ppb |
2019-01-16 | 1610-902-0841 | 79.3 ppb |
2019-01-16 | 1610-903-0809 | 85.0 ppb |
2019-01-16 | 1610-904-0840 | 90.1 ppb |
2019-01-16 | 1610-905-0911 | 102.4 ppb |
2019-01-16 | 1610-906-1144 | 85.1 ppb |
2019-01-16 | 1610-907-1120 | 89.8 ppb |
2019-01-16 | 1610-908-1014 | 78.3 ppb |
2019-01-16 | 1610-909-1052 | 82.8 ppb |
2019-01-16 | 1610-910-1115 | 82.0 ppb |
2019-01-16 | 1610-911-1143 | 78.3 ppb |
2019-01-16 | 1610-912-1212 | 77.7 ppb |
2019-01-16 | 1610-913-0903 | 64.3 ppb |
2019-01-16 | 1610-914-0927 | 68.6 ppb |
2019-01-16 | 1610-915-0941 | 68.2 ppb |
2019-01-16 | 1610-916-1004 | 75.4 ppb |
2019-01-16 | 1610-917-1026 | 95.8 ppb |
2019-01-16 | 1610-918-0740 | 76.8 ppb |
2019-01-30 | 5810-900-0750 | 0.580 ppb |
2019-01-30 | 5810-901-0808 | ND |
2019-01-30 | 5810-902-0832 | 12.0 ppb |
2019-01-30 | 5810-903-0827 | 9.10 ppb |
2019-01-30 | 5810-904-0857 | 83.0 ppb |
2019-01-30 | 5810-905-1003 | 81.0 ppb |
2019-01-30 | 5810-906-1100 | 95.0 ppb |
2019-01-30 | 5810-907-1129 | 100.0 ppb |
2019-01-30 | 5810-908-1037 | 52.0 ppb |
2019-01-30 | 5810-909-1111 | 47.0 ppb |
2019-01-30 | 5810-910-1126 | 78.0 ppb |
2019-01-30 | 5810-911-1147 | 77.0 ppb |
2019-01-30 | 5810-912-1209 | 45.0 ppb |
2019-01-30 | 5810-913-0853 | 78.0 ppb |
2019-01-30 | 5810-914-0911 | 79.0 ppb |
2019-01-30 | 5810-915-0929 | 78.0 ppb |
2019-01-30 | 5810-916-0954 | 88.0 ppb |
2019-01-30 | 5810-917-1014 | 100.0 ppb |
2019-01-30 | 5810-918-0753 | 88.0 ppb |
2019-04-10 | 1610-900-0801 | 20.0 ppb |
2019-04-10 | 1610-901-0821 | 18.7 ppb |
2019-04-10 | 1610-902-0843 | 19.2 ppb |
2019-04-10 | 1610-903-0823 | 19.8 ppb |
2019-04-10 | 1610-904-0852 | 21.1 ppb |
2019-04-10 | 1610-905-0916 | 34.4 ppb |
2019-04-10 | 1610-906-1117 | 16.3 ppb |
2019-04-10 | 1610-907-1141 | 12.2 ppb |
2019-04-10 | 1610-908-1040 | 50.2 ppb |
2019-04-10 | 1610-909-1115 | 48.2 ppb |
2019-04-10 | 1610-910-1143 | 64.1 ppb |
2019-04-10 | 1610-911-1209 | 46.7 ppb |
2019-04-10 | 1610-912-1236 | 47.4 ppb |
2019-04-10 | 1610-913-0911 | 16.6 ppb |
2019-04-10 | 1610-914-0939 | 11.3 ppb |
2019-04-10 | 1610-915-0954 | 11.0 ppb |
2019-04-10 | 1610-916-1020 | 19.3 ppb |
2019-04-10 | 1610-917-1051 | 33.7 ppb |
2019-04-10 | 1610-918-0750 | 19.4 ppb |
2019-07-10 | 1610-900-0749 | 18.4 ppb |
2019-07-10 | 1610-901-0817 | 22.5 ppb |
2019-07-10 | 1610-902-0838 | 26.4 ppb |
2019-07-10 | 1610-903-0821 | 25.0 ppb |
2019-07-10 | 1610-904-0934 | 29.4 ppb |
2019-07-10 | 1610-905-0958 | 30.0 ppb |
2019-07-10 | 1610-906-1105 | 26.5 ppb |
2019-07-10 | 1610-907-1135 | 22.5 ppb |
2019-07-10 | 1610-908-1026 | 39.0 ppb |
2019-07-10 | 1610-909-1049 | 45.5 ppb |
2019-07-10 | 1610-910-1109 | 49.5 ppb |
2019-07-10 | 1610-911-1131 | 38.5 ppb |
2019-07-10 | 1610-912-1153 | 38.5 ppb |
2019-07-10 | 1610-913-0851 | 5.09 ppb |
2019-07-10 | 1610-914-0908 | 18.8 ppb |
2019-07-10 | 1610-915-0931 | 27.2 ppb |
2019-07-10 | 1610-916-0953 | 28.1 ppb |
2019-07-10 | 1610-917-1017 | 32.9 ppb |
2019-07-10 | 1610-918-0755 | 26.2 ppb |
2019-10-16 | 1610-900-0755 | 25.3 ppb |
2019-10-16 | 1610-901-0832 | 18.6 ppb |
2019-10-16 | 1610-902-0851 | 16.6 ppb |
2019-10-16 | 1610-903-0815 | 19.7 ppb |
2019-10-16 | 1610-904-0914 | 24.9 ppb |
2019-10-16 | 1610-905-0934 | 24.3 ppb |
2019-10-16 | 1610-906-1138 | 20.3 ppb |
2019-10-16 | 1610-907-1159 | 14.7 ppb |
2019-10-16 | 1610-908-1008 | 34.1 ppb |
2019-10-16 | 1610-909-1040 | 28.9 ppb |
2019-10-16 | 1610-910-1101 | 32.1 ppb |
2019-10-16 | 1610-911-1140 | 34.8 ppb |
2019-10-16 | 1610-912-1121 | 29.6 ppb |
2019-10-16 | 1610-913-0910 | 22.5 ppb |
2019-10-16 | 1610-914-0932 | 21.5 ppb |
2019-10-16 | 1610-915-0953 | 20.5 ppb |
2019-10-16 | 1610-916-1012 | 20.1 ppb |
2019-10-16 | 1610-917-1054 | 24.6 ppb |
2019-10-16 | 1610-918-0750 | 22.7 ppb |