Total trihalomethanes (TTHMs)
Cambridge Water Department (MWRA)
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 | 7.85 ppb | 1 | 1 | 7.85 ppb |
2015 | 9.40 ppb | 315 | 315 | 4.70 ppb - 15.5 ppb |
2016 | 11.5 ppb | 335 | 335 | 4.90 ppb - 31.0 ppb |
2017 | 12.1 ppb | 385 | 385 | 6.40 ppb - 21.1 ppb |
2018 | 13.5 ppb | 370 | 370 | 7.50 ppb - 21.8 ppb |
2019 | 13.8 ppb | 162 | 162 | 6.80 ppb - 23.0 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 | Result |
---|---|
2014-05-13 | 7.85 ppb |
2015-01-07 | 6.50 ppb |
2015-01-07 | 6.50 ppb |
2015-01-07 | 6.60 ppb |
2015-01-07 | 6.60 ppb |
2015-01-07 | 6.30 ppb |
2015-01-07 | 6.30 ppb |
2015-01-07 | 6.00 ppb |
2015-01-07 | 6.00 ppb |
2015-01-07 | 6.40 ppb |
2015-01-07 | 6.40 ppb |
2015-01-07 | 6.20 ppb |
2015-01-07 | 6.20 ppb |
2015-01-07 | 6.30 ppb |
2015-01-07 | 6.30 ppb |
2015-01-07 | 6.00 ppb |
2015-01-07 | 6.00 ppb |
2015-01-21 | 5.00 ppb |
2015-01-21 | 5.00 ppb |
2015-01-21 | 5.00 ppb |
2015-01-21 | 5.00 ppb |
2015-01-21 | 5.00 ppb |
2015-01-21 | 5.00 ppb |
2015-01-21 | 5.40 ppb |
2015-01-21 | 5.40 ppb |
2015-01-21 | 4.70 ppb |
2015-01-21 | 4.70 ppb |
2015-01-21 | 4.90 ppb |
2015-01-21 | 4.90 ppb |
2015-01-21 | 4.80 ppb |
2015-01-21 | 4.80 ppb |
2015-01-21 | 5.00 ppb |
2015-01-21 | 5.00 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.40 ppb |
2015-02-04 | 5.40 ppb |
2015-02-04 | 5.60 ppb |
2015-02-04 | 5.60 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.20 ppb |
2015-02-04 | 5.20 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.30 ppb |
2015-02-04 | 5.30 ppb |
2015-02-17 | 7.60 ppb |
2015-02-17 | 7.60 ppb |
2015-02-18 | 5.30 ppb |
2015-02-18 | 5.30 ppb |
2015-02-18 | 5.70 ppb |
2015-02-18 | 5.70 ppb |
2015-02-18 | 5.40 ppb |
2015-02-18 | 5.40 ppb |
2015-02-18 | 5.70 ppb |
2015-02-18 | 5.70 ppb |
2015-02-18 | 5.30 ppb |
2015-02-18 | 5.30 ppb |
2015-02-18 | 5.80 ppb |
2015-02-18 | 5.80 ppb |
2015-02-18 | 5.40 ppb |
2015-02-18 | 5.40 ppb |
2015-02-19 | 5.70 ppb |
2015-02-19 | 5.70 ppb |
2015-03-04 | 5.10 ppb |
2015-03-04 | 5.10 ppb |
2015-03-04 | 5.10 ppb |
2015-03-04 | 5.10 ppb |
2015-03-04 | 5.60 ppb |
2015-03-04 | 5.60 ppb |
2015-03-04 | 5.30 ppb |
2015-03-04 | 5.30 ppb |
2015-03-04 | 5.60 ppb |
2015-03-04 | 5.60 ppb |
2015-03-04 | 5.20 ppb |
2015-03-04 | 5.20 ppb |
2015-03-04 | 5.30 ppb |
2015-03-04 | 5.30 ppb |
2015-03-04 | 5.30 ppb |
2015-03-04 | 5.30 ppb |
2015-03-18 | 6.90 ppb |
2015-03-18 | 6.90 ppb |
2015-03-18 | 6.80 ppb |
2015-03-18 | 6.80 ppb |
2015-03-18 | 6.80 ppb |
2015-03-18 | 6.80 ppb |
2015-03-18 | 7.20 ppb |
2015-03-18 | 7.20 ppb |
2015-03-18 | 6.80 ppb |
2015-03-18 | 6.80 ppb |
2015-03-18 | 7.10 ppb |
2015-03-18 | 7.10 ppb |
2015-03-18 | 7.30 ppb |
2015-03-18 | 7.30 ppb |
2015-03-18 | 6.80 ppb |
2015-03-18 | 6.80 ppb |
2015-04-01 | 7.20 ppb |
2015-04-01 | 7.20 ppb |
2015-04-01 | 7.10 ppb |
2015-04-01 | 7.10 ppb |
2015-04-01 | 7.10 ppb |
2015-04-01 | 7.10 ppb |
2015-04-01 | 6.80 ppb |
2015-04-01 | 6.80 ppb |
2015-04-01 | 7.30 ppb |
2015-04-01 | 7.30 ppb |
2015-04-01 | 7.10 ppb |
2015-04-01 | 7.10 ppb |
2015-04-01 | 7.00 ppb |
2015-04-01 | 7.00 ppb |
2015-04-01 | 6.60 ppb |
2015-04-01 | 6.60 ppb |
2015-04-15 | 7.30 ppb |
2015-04-15 | 7.30 ppb |
2015-04-15 | 7.50 ppb |
2015-04-15 | 7.50 ppb |
2015-04-15 | 7.40 ppb |
2015-04-15 | 7.40 ppb |
2015-04-15 | 7.20 ppb |
2015-04-15 | 7.20 ppb |
2015-04-15 | 7.50 ppb |
2015-04-15 | 7.50 ppb |
2015-04-15 | 7.40 ppb |
2015-04-15 | 7.40 ppb |
2015-04-15 | 7.10 ppb |
2015-04-15 | 7.10 ppb |
2015-04-15 | 7.20 ppb |
2015-04-15 | 7.20 ppb |
2015-05-06 | 7.90 ppb |
2015-05-06 | 7.90 ppb |
2015-05-06 | 8.20 ppb |
2015-05-06 | 8.20 ppb |
2015-05-06 | 8.20 ppb |
2015-05-06 | 8.20 ppb |
2015-05-06 | 7.60 ppb |
2015-05-06 | 7.60 ppb |
2015-05-06 | 7.80 ppb |
2015-05-06 | 7.80 ppb |
2015-05-06 | 8.20 ppb |
2015-05-06 | 8.20 ppb |
2015-05-06 | 7.90 ppb |
2015-05-06 | 7.90 ppb |
2015-05-06 | 7.20 ppb |
2015-05-06 | 7.20 ppb |
2015-05-11 | 8.82 ppb |
2015-05-20 | 10.5 ppb |
2015-05-20 | 10.5 ppb |
2015-05-20 | 10.6 ppb |
2015-05-20 | 10.6 ppb |
2015-05-20 | 10.5 ppb |
2015-05-20 | 10.5 ppb |
2015-05-20 | 10.6 ppb |
2015-05-20 | 10.6 ppb |
2015-05-20 | 10.8 ppb |
2015-05-20 | 10.8 ppb |
2015-05-20 | 11.0 ppb |
2015-05-20 | 11.0 ppb |
2015-05-20 | 11.2 ppb |
2015-05-20 | 11.2 ppb |
2015-05-20 | 10.5 ppb |
2015-05-20 | 10.5 ppb |
2015-06-03 | 12.4 ppb |
2015-06-03 | 12.4 ppb |
2015-06-03 | 12.7 ppb |
2015-06-03 | 12.7 ppb |
2015-06-03 | 12.0 ppb |
2015-06-03 | 12.0 ppb |
2015-06-03 | 11.9 ppb |
2015-06-03 | 11.9 ppb |
2015-06-03 | 12.2 ppb |
2015-06-03 | 12.2 ppb |
2015-06-03 | 11.7 ppb |
2015-06-03 | 11.7 ppb |
2015-06-03 | 12.9 ppb |
2015-06-03 | 12.9 ppb |
2015-06-03 | 12.2 ppb |
2015-06-03 | 12.2 ppb |
2015-06-17 | 14.7 ppb |
2015-06-17 | 14.7 ppb |
2015-06-17 | 14.0 ppb |
2015-06-17 | 14.0 ppb |
2015-06-17 | 15.5 ppb |
2015-06-17 | 15.5 ppb |
2015-06-17 | 14.0 ppb |
2015-06-17 | 14.0 ppb |
2015-06-17 | 12.4 ppb |
2015-06-17 | 12.4 ppb |
2015-06-17 | 14.5 ppb |
2015-06-17 | 14.5 ppb |
2015-06-17 | 15.2 ppb |
2015-06-17 | 15.2 ppb |
2015-06-17 | 14.2 ppb |
2015-06-17 | 14.2 ppb |
2015-07-01 | 15.3 ppb |
2015-07-01 | 15.3 ppb |
2015-07-01 | 15.4 ppb |
2015-07-01 | 15.4 ppb |
2015-07-01 | 15.3 ppb |
2015-07-01 | 15.3 ppb |
2015-07-01 | 14.0 ppb |
2015-07-01 | 14.0 ppb |
2015-07-01 | 14.8 ppb |
2015-07-01 | 14.8 ppb |
2015-07-01 | 14.8 ppb |
2015-07-01 | 14.8 ppb |
2015-07-01 | 14.4 ppb |
2015-07-01 | 14.4 ppb |
2015-07-01 | 14.3 ppb |
2015-07-01 | 14.3 ppb |
2015-07-15 | 13.4 ppb |
2015-07-15 | 13.4 ppb |
2015-07-15 | 13.7 ppb |
2015-07-15 | 13.7 ppb |
2015-07-15 | 13.4 ppb |
2015-07-15 | 13.4 ppb |
2015-07-15 | 13.5 ppb |
2015-07-15 | 13.5 ppb |
2015-07-15 | 13.4 ppb |
2015-07-15 | 13.4 ppb |
2015-07-15 | 13.8 ppb |
2015-07-15 | 13.8 ppb |
2015-07-15 | 13.7 ppb |
2015-07-15 | 13.7 ppb |
2015-07-15 | 13.9 ppb |
2015-07-15 | 13.9 ppb |
2015-08-05 | 12.7 ppb |
2015-08-05 | 12.7 ppb |
2015-08-05 | 13.4 ppb |
2015-08-05 | 13.4 ppb |
2015-08-05 | 12.9 ppb |
2015-08-05 | 12.9 ppb |
2015-08-05 | 12.5 ppb |
2015-08-05 | 12.5 ppb |
2015-08-05 | 12.5 ppb |
2015-08-05 | 12.5 ppb |
2015-08-05 | 12.3 ppb |
2015-08-05 | 12.3 ppb |
2015-08-05 | 12.7 ppb |
2015-08-05 | 12.7 ppb |
2015-08-05 | 12.5 ppb |
2015-08-05 | 12.5 ppb |
2015-08-19 | 12.0 ppb |
2015-08-19 | 12.0 ppb |
2015-08-19 | 12.6 ppb |
2015-08-19 | 12.6 ppb |
2015-08-19 | 12.2 ppb |
2015-08-19 | 12.2 ppb |
2015-08-19 | 12.0 ppb |
2015-08-19 | 12.0 ppb |
2015-08-19 | 12.1 ppb |
2015-08-19 | 12.1 ppb |
2015-08-19 | 11.9 ppb |
2015-08-19 | 11.9 ppb |
2015-08-19 | 12.3 ppb |
2015-08-19 | 12.3 ppb |
2015-08-19 | 11.4 ppb |
2015-08-19 | 11.4 ppb |
2015-09-02 | 10.9 ppb |
2015-09-02 | 10.9 ppb |
2015-09-02 | 11.8 ppb |
2015-09-02 | 11.8 ppb |
2015-09-02 | 11.3 ppb |
2015-09-02 | 11.3 ppb |
2015-09-02 | 11.4 ppb |
2015-09-02 | 11.4 ppb |
2015-09-02 | 11.1 ppb |
2015-09-02 | 11.1 ppb |
2015-09-02 | 11.1 ppb |
2015-09-02 | 11.1 ppb |
2015-09-02 | 10.8 ppb |
2015-09-02 | 10.8 ppb |
2015-09-02 | 11.4 ppb |
2015-09-02 | 11.4 ppb |
2015-09-16 | 12.3 ppb |
2015-09-16 | 12.3 ppb |
2015-09-16 | 12.2 ppb |
2015-09-16 | 12.2 ppb |
2015-09-16 | 12.7 ppb |
2015-09-16 | 12.7 ppb |
2015-09-16 | 13.1 ppb |
2015-09-16 | 13.1 ppb |
2015-11-04 | 10.1 ppb |
2015-11-04 | 10.1 ppb |
2015-11-04 | 10.4 ppb |
2015-11-04 | 10.4 ppb |
2015-11-04 | 10.5 ppb |
2015-11-04 | 10.5 ppb |
2015-11-04 | 9.90 ppb |
2015-11-04 | 9.90 ppb |
2015-11-04 | 10.4 ppb |
2015-11-04 | 10.4 ppb |
2015-11-04 | 9.80 ppb |
2015-11-04 | 9.80 ppb |
2015-11-04 | 9.90 ppb |
2015-11-04 | 9.90 ppb |
2015-11-04 | 9.80 ppb |
2015-11-04 | 9.80 ppb |
2015-11-18 | 9.00 ppb |
2015-11-18 | 9.00 ppb |
2015-11-18 | 9.20 ppb |
2015-11-18 | 9.20 ppb |
2015-11-18 | 8.80 ppb |
2015-11-18 | 8.80 ppb |
2015-11-18 | 8.30 ppb |
2015-11-18 | 8.30 ppb |
2015-11-18 | 9.20 ppb |
2015-11-18 | 9.20 ppb |
2015-11-18 | 8.60 ppb |
2015-11-18 | 8.60 ppb |
2015-11-18 | 8.70 ppb |
2015-11-18 | 8.70 ppb |
2015-11-18 | 8.90 ppb |
2015-11-18 | 8.90 ppb |
2016-01-06 | 10.8 ppb |
2016-01-06 | 10.8 ppb |
2016-01-06 | 11.6 ppb |
2016-01-06 | 11.6 ppb |
2016-01-06 | 11.0 ppb |
2016-01-06 | 11.0 ppb |
2016-01-06 | 10.00 ppb |
2016-01-06 | 10.00 ppb |
2016-01-06 | 11.6 ppb |
2016-01-06 | 11.6 ppb |
2016-01-06 | 10.4 ppb |
2016-01-06 | 10.4 ppb |
2016-01-06 | 10.4 ppb |
2016-01-06 | 10.4 ppb |
2016-01-06 | 10.4 ppb |
2016-01-06 | 10.4 ppb |
2016-01-20 | 6.30 ppb |
2016-01-20 | 6.30 ppb |
2016-01-20 | 6.20 ppb |
2016-01-20 | 6.20 ppb |
2016-01-20 | 5.90 ppb |
2016-01-20 | 5.90 ppb |
2016-01-20 | 5.60 ppb |
2016-01-20 | 5.60 ppb |
2016-01-20 | 6.30 ppb |
2016-01-20 | 6.30 ppb |
2016-01-20 | 5.80 ppb |
2016-01-20 | 5.80 ppb |
2016-01-20 | 6.00 ppb |
2016-01-20 | 6.00 ppb |
2016-01-20 | 6.40 ppb |
2016-01-20 | 6.40 ppb |
2016-02-03 | 6.10 ppb |
2016-02-03 | 6.10 ppb |
2016-02-03 | 6.00 ppb |
2016-02-03 | 6.00 ppb |
2016-02-03 | 6.00 ppb |
2016-02-03 | 6.00 ppb |
2016-02-03 | 4.90 ppb |
2016-02-03 | 4.90 ppb |
2016-02-03 | 6.40 ppb |
2016-02-03 | 6.40 ppb |
2016-02-03 | 5.40 ppb |
2016-02-03 | 5.40 ppb |
2016-02-03 | 5.90 ppb |
2016-02-03 | 5.90 ppb |
2016-02-03 | 6.00 ppb |
2016-02-03 | 6.00 ppb |
2016-02-17 | 7.30 ppb |
2016-02-17 | 7.30 ppb |
2016-02-17 | 8.20 ppb |
2016-02-17 | 8.20 ppb |
2016-02-17 | 7.60 ppb |
2016-02-17 | 7.60 ppb |
2016-02-17 | 6.20 ppb |
2016-02-17 | 6.20 ppb |
2016-02-17 | 7.50 ppb |
2016-02-17 | 7.50 ppb |
2016-02-17 | 6.70 ppb |
2016-02-17 | 6.70 ppb |
2016-02-17 | 5.80 ppb |
2016-02-17 | 5.80 ppb |
2016-03-02 | 7.50 ppb |
2016-03-02 | 7.50 ppb |
2016-03-02 | 7.70 ppb |
2016-03-02 | 7.70 ppb |
2016-03-02 | 7.60 ppb |
2016-03-02 | 7.60 ppb |
2016-03-02 | 6.40 ppb |
2016-03-02 | 6.40 ppb |
2016-03-16 | 6.90 ppb |
2016-03-16 | 6.90 ppb |
2016-03-16 | 7.60 ppb |
2016-03-16 | 7.60 ppb |
2016-03-16 | 7.70 ppb |
2016-03-16 | 7.70 ppb |
2016-03-16 | 6.50 ppb |
2016-03-16 | 6.50 ppb |
2016-03-16 | 6.80 ppb |
2016-03-16 | 6.80 ppb |
2016-03-16 | 6.50 ppb |
2016-03-16 | 6.50 ppb |
2016-03-16 | 6.70 ppb |
2016-03-16 | 6.70 ppb |
2016-03-16 | 7.00 ppb |
2016-03-16 | 7.00 ppb |
2016-05-04 | 12.0 ppb |
2016-05-04 | 12.0 ppb |
2016-05-04 | 15.0 ppb |
2016-05-04 | 15.0 ppb |
2016-05-04 | 12.0 ppb |
2016-05-04 | 12.0 ppb |
2016-05-04 | 18.0 ppb |
2016-05-04 | 18.0 ppb |
2016-05-04 | 12.0 ppb |
2016-05-04 | 12.0 ppb |
2016-05-04 | 11.0 ppb |
2016-05-04 | 11.0 ppb |
2016-05-04 | 9.60 ppb |
2016-05-04 | 9.60 ppb |
2016-05-04 | 31.0 ppb |
2016-05-04 | 31.0 ppb |
2016-05-18 | 11.0 ppb |
2016-05-18 | 11.0 ppb |
2016-05-18 | 12.0 ppb |
2016-05-18 | 12.0 ppb |
2016-05-18 | 12.0 ppb |
2016-05-18 | 12.0 ppb |
2016-05-18 | 14.0 ppb |
2016-05-18 | 14.0 ppb |
2016-05-18 | 11.0 ppb |
2016-05-18 | 11.0 ppb |
2016-05-18 | 11.0 ppb |
2016-05-18 | 11.0 ppb |
2016-05-18 | 12.0 ppb |
2016-05-18 | 12.0 ppb |
2016-05-18 | 20.0 ppb |
2016-05-18 | 20.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 13.0 ppb |
2016-06-01 | 13.0 ppb |
2016-06-01 | 13.0 ppb |
2016-06-01 | 13.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 11.0 ppb |
2016-06-01 | 11.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 12.0 ppb |
2016-06-01 | 14.0 ppb |
2016-06-01 | 14.0 ppb |
2016-06-15 | 12.3 ppb |
2016-06-15 | 12.3 ppb |
2016-06-15 | 12.1 ppb |
2016-06-15 | 12.1 ppb |
2016-06-15 | 11.9 ppb |
2016-06-15 | 11.9 ppb |
2016-06-15 | 11.6 ppb |
2016-06-15 | 11.6 ppb |
2016-06-15 | 11.3 ppb |
2016-06-15 | 11.3 ppb |
2016-06-15 | 9.50 ppb |
2016-06-15 | 9.50 ppb |
2016-06-15 | 11.7 ppb |
2016-06-15 | 11.7 ppb |
2016-06-15 | 14.8 ppb |
2016-06-15 | 14.8 ppb |
2016-06-28 | 12.3 ppb |
2016-07-06 | 15.4 ppb |
2016-07-06 | 15.4 ppb |
2016-07-06 | 16.6 ppb |
2016-07-06 | 16.6 ppb |
2016-07-06 | 15.0 ppb |
2016-07-06 | 15.0 ppb |
2016-07-06 | 14.8 ppb |
2016-07-06 | 14.8 ppb |
2016-07-06 | 14.8 ppb |
2016-07-06 | 14.8 ppb |
2016-07-06 | 12.8 ppb |
2016-07-06 | 12.8 ppb |
2016-07-06 | 12.4 ppb |
2016-07-06 | 12.4 ppb |
2016-07-06 | 16.8 ppb |
2016-07-06 | 16.8 ppb |
2016-07-20 | 14.2 ppb |
2016-07-20 | 14.2 ppb |
2016-07-20 | 15.2 ppb |
2016-07-20 | 15.2 ppb |
2016-07-20 | 14.8 ppb |
2016-07-20 | 14.8 ppb |
2016-07-20 | 15.1 ppb |
2016-07-20 | 15.1 ppb |
2016-08-03 | 15.2 ppb |
2016-08-03 | 15.2 ppb |
2016-08-03 | 16.0 ppb |
2016-08-03 | 16.0 ppb |
2016-08-03 | 16.0 ppb |
2016-08-03 | 16.0 ppb |
2016-08-03 | 14.5 ppb |
2016-08-03 | 14.5 ppb |
2016-08-03 | 15.6 ppb |
2016-08-03 | 15.6 ppb |
2016-08-03 | 16.7 ppb |
2016-08-03 | 16.7 ppb |
2016-08-03 | 15.8 ppb |
2016-08-03 | 15.8 ppb |
2016-08-03 | 16.8 ppb |
2016-08-03 | 16.8 ppb |
2016-08-17 | 14.9 ppb |
2016-08-17 | 14.9 ppb |
2016-08-17 | 15.1 ppb |
2016-08-17 | 15.1 ppb |
2016-08-17 | 14.8 ppb |
2016-08-17 | 14.8 ppb |
2016-08-17 | 14.1 ppb |
2016-08-17 | 14.1 ppb |
2016-08-17 | 15.2 ppb |
2016-08-17 | 15.2 ppb |
2016-08-17 | 15.0 ppb |
2016-08-17 | 15.0 ppb |
2016-08-17 | 14.9 ppb |
2016-08-17 | 14.9 ppb |
2016-08-17 | 14.5 ppb |
2016-08-17 | 14.5 ppb |
2016-09-07 | 14.2 ppb |
2016-09-07 | 14.2 ppb |
2016-09-07 | 13.8 ppb |
2016-09-07 | 13.8 ppb |
2016-09-07 | 14.3 ppb |
2016-09-07 | 14.3 ppb |
2016-09-07 | 13.8 ppb |
2016-09-07 | 13.8 ppb |
2016-09-07 | 14.1 ppb |
2016-09-07 | 14.1 ppb |
2016-09-07 | 12.7 ppb |
2016-09-07 | 12.7 ppb |
2016-09-07 | 14.6 ppb |
2016-09-07 | 14.6 ppb |
2016-09-07 | 13.7 ppb |
2016-09-07 | 13.7 ppb |
2016-09-21 | 17.2 ppb |
2016-09-21 | 17.2 ppb |
2016-09-21 | 18.8 ppb |
2016-09-21 | 18.8 ppb |
2016-09-21 | 17.0 ppb |
2016-09-21 | 17.0 ppb |
2016-09-21 | 16.6 ppb |
2016-09-21 | 16.6 ppb |
2016-09-21 | 16.5 ppb |
2016-09-21 | 16.5 ppb |
2016-09-21 | 16.9 ppb |
2016-09-21 | 16.9 ppb |
2016-09-21 | 17.0 ppb |
2016-09-21 | 17.0 ppb |
2016-09-21 | 16.7 ppb |
2016-09-21 | 16.7 ppb |
2016-10-05 | 16.6 ppb |
2016-10-05 | 16.6 ppb |
2016-10-05 | 16.9 ppb |
2016-10-05 | 16.9 ppb |
2016-10-05 | 16.5 ppb |
2016-10-05 | 16.5 ppb |
2016-10-05 | 16.0 ppb |
2016-10-05 | 16.0 ppb |
2016-10-05 | 16.9 ppb |
2016-10-05 | 16.9 ppb |
2016-10-05 | 15.9 ppb |
2016-10-05 | 15.9 ppb |
2016-10-05 | 16.3 ppb |
2016-10-05 | 16.3 ppb |
2016-10-05 | 16.3 ppb |
2016-10-05 | 16.3 ppb |
2016-10-19 | 9.40 ppb |
2016-10-19 | 9.40 ppb |
2016-10-19 | 9.80 ppb |
2016-10-19 | 9.80 ppb |
2016-10-19 | 8.10 ppb |
2016-10-19 | 8.10 ppb |
2016-10-19 | 15.6 ppb |
2016-10-19 | 15.6 ppb |
2016-10-19 | 7.70 ppb |
2016-10-19 | 7.70 ppb |
2016-10-19 | 9.10 ppb |
2016-10-19 | 9.10 ppb |
2016-10-19 | 7.70 ppb |
2016-10-19 | 7.70 ppb |
2016-10-19 | 16.1 ppb |
2016-10-19 | 16.1 ppb |
2016-11-02 | 12.1 ppb |
2016-11-02 | 12.1 ppb |
2016-11-02 | 12.6 ppb |
2016-11-02 | 12.6 ppb |
2016-11-02 | 12.2 ppb |
2016-11-02 | 12.2 ppb |
2016-11-02 | 12.2 ppb |
2016-11-02 | 12.2 ppb |
2016-11-02 | 11.5 ppb |
2016-11-02 | 11.5 ppb |
2016-11-02 | 11.7 ppb |
2016-11-02 | 11.7 ppb |
2016-11-02 | 12.4 ppb |
2016-11-02 | 12.4 ppb |
2016-11-02 | 12.2 ppb |
2016-11-02 | 12.2 ppb |
2016-11-16 | 6.30 ppb |
2016-11-16 | 6.30 ppb |
2016-11-16 | 10.4 ppb |
2016-11-16 | 10.4 ppb |
2016-11-16 | 6.30 ppb |
2016-11-16 | 6.30 ppb |
2016-11-16 | 11.4 ppb |
2016-11-16 | 11.4 ppb |
2016-11-16 | 6.50 ppb |
2016-11-16 | 6.50 ppb |
2016-11-16 | 6.60 ppb |
2016-11-16 | 6.60 ppb |
2016-11-16 | 5.80 ppb |
2016-11-16 | 5.80 ppb |
2016-11-16 | 11.5 ppb |
2016-11-16 | 11.5 ppb |
2016-12-07 | 7.80 ppb |
2016-12-07 | 7.80 ppb |
2016-12-07 | 8.90 ppb |
2016-12-07 | 8.90 ppb |
2016-12-07 | 8.00 ppb |
2016-12-07 | 8.00 ppb |
2016-12-07 | 8.30 ppb |
2016-12-07 | 8.30 ppb |
2016-12-07 | 8.60 ppb |
2016-12-07 | 8.60 ppb |
2016-12-07 | 8.10 ppb |
2016-12-07 | 8.10 ppb |
2016-12-07 | 7.00 ppb |
2016-12-07 | 7.00 ppb |
2016-12-07 | 8.80 ppb |
2016-12-07 | 8.80 ppb |
2016-12-14 | 8.80 ppb |
2016-12-14 | 8.80 ppb |
2016-12-14 | 8.90 ppb |
2016-12-14 | 8.90 ppb |
2016-12-14 | 8.60 ppb |
2016-12-14 | 8.60 ppb |
2016-12-14 | 8.80 ppb |
2016-12-14 | 8.80 ppb |
2016-12-14 | 8.90 ppb |
2016-12-14 | 8.90 ppb |
2016-12-14 | 8.70 ppb |
2016-12-14 | 8.70 ppb |
2016-12-14 | 9.00 ppb |
2016-12-14 | 9.00 ppb |
2016-12-14 | 8.90 ppb |
2016-12-14 | 8.90 ppb |
2017-01-04 | 9.10 ppb |
2017-01-04 | 9.10 ppb |
2017-01-04 | 9.10 ppb |
2017-01-04 | 9.10 ppb |
2017-01-04 | 9.20 ppb |
2017-01-04 | 9.20 ppb |
2017-01-04 | 8.60 ppb |
2017-01-04 | 8.60 ppb |
2017-01-04 | 9.40 ppb |
2017-01-04 | 9.40 ppb |
2017-01-04 | 8.50 ppb |
2017-01-04 | 8.50 ppb |
2017-01-04 | 9.50 ppb |
2017-01-04 | 9.50 ppb |
2017-01-04 | 9.00 ppb |
2017-01-04 | 9.00 ppb |
2017-01-18 | 6.60 ppb |
2017-01-18 | 6.60 ppb |
2017-01-18 | 7.20 ppb |
2017-01-18 | 7.20 ppb |
2017-01-18 | 6.90 ppb |
2017-01-18 | 6.90 ppb |
2017-01-18 | 6.70 ppb |
2017-01-18 | 6.70 ppb |
2017-01-18 | 6.90 ppb |
2017-01-18 | 6.90 ppb |
2017-01-18 | 6.40 ppb |
2017-01-18 | 6.40 ppb |
2017-01-18 | 6.60 ppb |
2017-01-18 | 6.60 ppb |
2017-01-18 | 6.80 ppb |
2017-01-18 | 6.80 ppb |
2017-02-01 | 6.60 ppb |
2017-02-01 | 6.60 ppb |
2017-02-01 | 7.10 ppb |
2017-02-01 | 7.10 ppb |
2017-02-01 | 6.50 ppb |
2017-02-01 | 6.50 ppb |
2017-02-01 | 6.80 ppb |
2017-02-01 | 6.80 ppb |
2017-02-01 | 6.90 ppb |
2017-02-01 | 6.90 ppb |
2017-02-01 | 6.70 ppb |
2017-02-01 | 6.70 ppb |
2017-02-01 | 6.80 ppb |
2017-02-01 | 6.80 ppb |
2017-02-01 | 6.50 ppb |
2017-02-01 | 6.50 ppb |
2017-02-15 | 6.70 ppb |
2017-02-15 | 6.70 ppb |
2017-02-15 | 6.90 ppb |
2017-02-15 | 6.90 ppb |
2017-02-15 | 7.80 ppb |
2017-02-15 | 7.80 ppb |
2017-02-15 | 10.7 ppb |
2017-02-15 | 10.7 ppb |
2017-02-15 | 7.60 ppb |
2017-02-15 | 7.60 ppb |
2017-02-15 | 9.60 ppb |
2017-02-15 | 9.60 ppb |
2017-02-15 | 8.30 ppb |
2017-02-15 | 8.30 ppb |
2017-02-15 | 8.70 ppb |
2017-02-15 | 8.70 ppb |
2017-03-01 | 7.50 ppb |
2017-03-01 | 7.50 ppb |
2017-03-01 | 7.90 ppb |
2017-03-01 | 7.90 ppb |
2017-03-01 | 7.40 ppb |
2017-03-01 | 7.40 ppb |
2017-03-01 | 7.00 ppb |
2017-03-01 | 7.00 ppb |
2017-03-01 | 7.20 ppb |
2017-03-01 | 7.20 ppb |
2017-03-01 | 7.00 ppb |
2017-03-01 | 7.00 ppb |
2017-03-01 | 7.40 ppb |
2017-03-01 | 7.40 ppb |
2017-03-01 | 6.90 ppb |
2017-03-01 | 6.90 ppb |
2017-03-15 | 8.00 ppb |
2017-03-15 | 8.00 ppb |
2017-03-15 | 8.00 ppb |
2017-03-15 | 8.00 ppb |
2017-03-15 | 7.70 ppb |
2017-03-15 | 7.70 ppb |
2017-03-15 | 7.70 ppb |
2017-03-15 | 7.70 ppb |
2017-03-15 | 7.90 ppb |
2017-03-15 | 7.90 ppb |
2017-03-15 | 7.60 ppb |
2017-03-15 | 7.60 ppb |
2017-03-15 | 8.10 ppb |
2017-03-15 | 8.10 ppb |
2017-03-15 | 8.10 ppb |
2017-03-15 | 8.10 ppb |
2017-04-05 | 7.30 ppb |
2017-04-05 | 7.30 ppb |
2017-04-05 | 7.20 ppb |
2017-04-05 | 7.20 ppb |
2017-04-05 | 7.30 ppb |
2017-04-05 | 7.30 ppb |
2017-04-05 | 7.40 ppb |
2017-04-05 | 7.40 ppb |
2017-04-05 | 7.40 ppb |
2017-04-05 | 7.40 ppb |
2017-04-05 | 7.20 ppb |
2017-04-05 | 7.20 ppb |
2017-04-05 | 7.00 ppb |
2017-04-05 | 7.00 ppb |
2017-04-05 | 7.30 ppb |
2017-04-05 | 7.30 ppb |
2017-04-19 | 8.50 ppb |
2017-04-19 | 8.50 ppb |
2017-04-19 | 9.30 ppb |
2017-04-19 | 9.30 ppb |
2017-04-19 | 9.10 ppb |
2017-04-19 | 9.10 ppb |
2017-04-19 | 8.40 ppb |
2017-04-19 | 8.40 ppb |
2017-04-19 | 9.20 ppb |
2017-04-19 | 9.20 ppb |
2017-04-19 | 8.60 ppb |
2017-04-19 | 8.60 ppb |
2017-04-19 | 8.70 ppb |
2017-04-19 | 8.70 ppb |
2017-04-19 | 9.20 ppb |
2017-04-19 | 9.20 ppb |
2017-05-03 | 10.2 ppb |
2017-05-03 | 10.2 ppb |
2017-05-03 | 10.1 ppb |
2017-05-03 | 10.1 ppb |
2017-05-03 | 10.5 ppb |
2017-05-03 | 10.5 ppb |
2017-05-03 | 9.70 ppb |
2017-05-03 | 9.70 ppb |
2017-05-03 | 9.90 ppb |
2017-05-03 | 9.90 ppb |
2017-05-03 | 10.5 ppb |
2017-05-03 | 10.5 ppb |
2017-05-03 | 10.2 ppb |
2017-05-03 | 10.2 ppb |
2017-05-03 | 10.3 ppb |
2017-05-03 | 10.3 ppb |
2017-05-08 | 9.96 ppb |
2017-05-17 | 10.5 ppb |
2017-05-17 | 10.5 ppb |
2017-05-17 | 11.5 ppb |
2017-05-17 | 11.5 ppb |
2017-05-17 | 10.9 ppb |
2017-05-17 | 10.9 ppb |
2017-05-17 | 10.3 ppb |
2017-05-17 | 10.3 ppb |
2017-05-17 | 11.0 ppb |
2017-05-17 | 11.0 ppb |
2017-05-17 | 11.0 ppb |
2017-05-17 | 11.0 ppb |
2017-05-17 | 11.1 ppb |
2017-05-17 | 11.1 ppb |
2017-05-17 | 10.3 ppb |
2017-05-17 | 10.3 ppb |
2017-06-07 | 12.6 ppb |
2017-06-07 | 12.6 ppb |
2017-06-07 | 13.3 ppb |
2017-06-07 | 13.3 ppb |
2017-06-07 | 12.9 ppb |
2017-06-07 | 12.9 ppb |
2017-06-07 | 12.9 ppb |
2017-06-07 | 12.9 ppb |
2017-06-07 | 13.3 ppb |
2017-06-07 | 13.3 ppb |
2017-06-07 | 13.3 ppb |
2017-06-07 | 13.3 ppb |
2017-06-07 | 13.2 ppb |
2017-06-07 | 13.2 ppb |
2017-06-07 | 13.0 ppb |
2017-06-07 | 13.0 ppb |
2017-06-21 | 14.0 ppb |
2017-06-21 | 14.0 ppb |
2017-06-21 | 13.9 ppb |
2017-06-21 | 13.9 ppb |
2017-06-21 | 14.8 ppb |
2017-06-21 | 14.8 ppb |
2017-06-21 | 14.3 ppb |
2017-06-21 | 14.3 ppb |
2017-06-21 | 14.3 ppb |
2017-06-21 | 14.3 ppb |
2017-06-21 | 14.1 ppb |
2017-06-21 | 14.1 ppb |
2017-06-21 | 13.6 ppb |
2017-06-21 | 13.6 ppb |
2017-06-21 | 14.5 ppb |
2017-06-21 | 14.5 ppb |
2017-07-06 | 17.0 ppb |
2017-07-06 | 17.0 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.7 ppb |
2017-07-06 | 17.7 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.4 ppb |
2017-07-06 | 17.0 ppb |
2017-07-06 | 17.0 ppb |
2017-07-06 | 17.7 ppb |
2017-07-06 | 17.7 ppb |
2017-07-19 | 16.4 ppb |
2017-07-19 | 16.4 ppb |
2017-07-19 | 17.0 ppb |
2017-07-19 | 17.0 ppb |
2017-07-19 | 17.1 ppb |
2017-07-19 | 17.1 ppb |
2017-07-19 | 17.2 ppb |
2017-07-19 | 17.2 ppb |
2017-07-19 | 16.1 ppb |
2017-07-19 | 16.1 ppb |
2017-07-19 | 16.0 ppb |
2017-07-19 | 16.0 ppb |
2017-07-19 | 16.8 ppb |
2017-07-19 | 16.8 ppb |
2017-07-19 | 17.1 ppb |
2017-07-19 | 17.1 ppb |
2017-08-02 | 18.6 ppb |
2017-08-02 | 18.6 ppb |
2017-08-02 | 18.2 ppb |
2017-08-02 | 18.2 ppb |
2017-08-02 | 17.6 ppb |
2017-08-02 | 17.6 ppb |
2017-08-02 | 16.8 ppb |
2017-08-02 | 16.8 ppb |
2017-08-02 | 17.4 ppb |
2017-08-02 | 17.4 ppb |
2017-08-02 | 16.9 ppb |
2017-08-02 | 16.9 ppb |
2017-08-02 | 17.7 ppb |
2017-08-02 | 17.7 ppb |
2017-08-02 | 16.8 ppb |
2017-08-02 | 16.8 ppb |
2017-08-16 | 18.0 ppb |
2017-08-16 | 18.0 ppb |
2017-08-16 | 17.9 ppb |
2017-08-16 | 17.9 ppb |
2017-08-16 | 18.2 ppb |
2017-08-16 | 18.2 ppb |
2017-08-16 | 17.3 ppb |
2017-08-16 | 17.3 ppb |
2017-08-16 | 17.1 ppb |
2017-08-16 | 17.1 ppb |
2017-08-16 | 17.4 ppb |
2017-08-16 | 17.4 ppb |
2017-08-16 | 18.2 ppb |
2017-08-16 | 18.2 ppb |
2017-08-16 | 17.8 ppb |
2017-08-16 | 17.8 ppb |
2017-09-06 | 20.4 ppb |
2017-09-06 | 20.4 ppb |
2017-09-06 | 20.8 ppb |
2017-09-06 | 20.8 ppb |
2017-09-06 | 20.5 ppb |
2017-09-06 | 20.5 ppb |
2017-09-06 | 20.5 ppb |
2017-09-06 | 20.5 ppb |
2017-09-06 | 20.7 ppb |
2017-09-06 | 20.7 ppb |
2017-09-06 | 20.9 ppb |
2017-09-06 | 20.9 ppb |
2017-09-06 | 21.1 ppb |
2017-09-06 | 21.1 ppb |
2017-09-06 | 20.2 ppb |
2017-09-06 | 20.2 ppb |
2017-09-20 | 14.4 ppb |
2017-09-20 | 14.4 ppb |
2017-09-20 | 14.7 ppb |
2017-09-20 | 14.7 ppb |
2017-09-20 | 13.9 ppb |
2017-09-20 | 13.9 ppb |
2017-09-20 | 14.0 ppb |
2017-09-20 | 14.0 ppb |
2017-09-20 | 14.5 ppb |
2017-09-20 | 14.5 ppb |
2017-09-20 | 13.8 ppb |
2017-09-20 | 13.8 ppb |
2017-09-20 | 14.0 ppb |
2017-09-20 | 14.0 ppb |
2017-09-20 | 14.2 ppb |
2017-09-20 | 14.2 ppb |
2017-10-04 | 18.0 ppb |
2017-10-04 | 18.0 ppb |
2017-10-04 | 17.4 ppb |
2017-10-04 | 17.4 ppb |
2017-10-04 | 17.9 ppb |
2017-10-04 | 17.9 ppb |
2017-10-04 | 16.8 ppb |
2017-10-04 | 16.8 ppb |
2017-10-04 | 17.0 ppb |
2017-10-04 | 17.0 ppb |
2017-10-04 | 16.6 ppb |
2017-10-04 | 16.6 ppb |
2017-10-04 | 17.1 ppb |
2017-10-04 | 17.1 ppb |
2017-10-04 | 16.9 ppb |
2017-10-04 | 16.9 ppb |
2017-10-18 | 14.1 ppb |
2017-10-18 | 14.1 ppb |
2017-10-18 | 14.3 ppb |
2017-10-18 | 14.3 ppb |
2017-10-18 | 14.7 ppb |
2017-10-18 | 14.7 ppb |
2017-10-18 | 14.7 ppb |
2017-10-18 | 14.7 ppb |
2017-10-18 | 14.4 ppb |
2017-10-18 | 14.4 ppb |
2017-10-18 | 13.8 ppb |
2017-10-18 | 13.8 ppb |
2017-10-18 | 14.9 ppb |
2017-10-18 | 14.9 ppb |
2017-10-18 | 13.8 ppb |
2017-10-18 | 13.8 ppb |
2017-11-08 | 12.4 ppb |
2017-11-08 | 12.4 ppb |
2017-11-08 | 12.6 ppb |
2017-11-08 | 12.6 ppb |
2017-11-08 | 12.0 ppb |
2017-11-08 | 12.0 ppb |
2017-11-08 | 12.3 ppb |
2017-11-08 | 12.3 ppb |
2017-11-08 | 12.2 ppb |
2017-11-08 | 12.2 ppb |
2017-11-08 | 12.2 ppb |
2017-11-08 | 12.2 ppb |
2017-11-08 | 12.6 ppb |
2017-11-08 | 12.6 ppb |
2017-11-08 | 12.1 ppb |
2017-11-08 | 12.1 ppb |
2017-11-21 | 9.80 ppb |
2017-11-21 | 9.80 ppb |
2017-11-21 | 9.90 ppb |
2017-11-21 | 9.90 ppb |
2017-11-21 | 9.90 ppb |
2017-11-21 | 9.90 ppb |
2017-11-21 | 9.70 ppb |
2017-11-21 | 9.70 ppb |
2017-11-21 | 10.00 ppb |
2017-11-21 | 10.00 ppb |
2017-11-21 | 9.70 ppb |
2017-11-21 | 9.70 ppb |
2017-11-21 | 9.70 ppb |
2017-11-21 | 9.70 ppb |
2017-11-21 | 9.90 ppb |
2017-11-21 | 9.90 ppb |
2017-12-06 | 11.5 ppb |
2017-12-06 | 11.5 ppb |
2017-12-06 | 11.4 ppb |
2017-12-06 | 11.4 ppb |
2017-12-06 | 11.7 ppb |
2017-12-06 | 11.7 ppb |
2017-12-06 | 11.3 ppb |
2017-12-06 | 11.3 ppb |
2017-12-06 | 11.3 ppb |
2017-12-06 | 11.3 ppb |
2017-12-06 | 11.2 ppb |
2017-12-06 | 11.2 ppb |
2017-12-06 | 11.6 ppb |
2017-12-06 | 11.6 ppb |
2017-12-06 | 11.0 ppb |
2017-12-06 | 11.0 ppb |
2017-12-13 | 10.8 ppb |
2017-12-13 | 10.8 ppb |
2017-12-13 | 11.0 ppb |
2017-12-13 | 11.0 ppb |
2017-12-13 | 10.8 ppb |
2017-12-13 | 10.8 ppb |
2017-12-13 | 10.6 ppb |
2017-12-13 | 10.6 ppb |
2017-12-13 | 10.7 ppb |
2017-12-13 | 10.7 ppb |
2017-12-13 | 10.5 ppb |
2017-12-13 | 10.5 ppb |
2017-12-13 | 10.8 ppb |
2017-12-13 | 10.8 ppb |
2017-12-13 | 9.90 ppb |
2017-12-13 | 9.90 ppb |
2018-01-03 | 8.20 ppb |
2018-01-03 | 8.20 ppb |
2018-01-03 | 9.10 ppb |
2018-01-03 | 9.10 ppb |
2018-01-03 | 8.50 ppb |
2018-01-03 | 8.50 ppb |
2018-01-03 | 8.60 ppb |
2018-01-03 | 8.60 ppb |
2018-01-03 | 8.20 ppb |
2018-01-03 | 8.20 ppb |
2018-01-03 | 8.40 ppb |
2018-01-03 | 8.40 ppb |
2018-01-03 | 8.50 ppb |
2018-01-03 | 8.50 ppb |
2018-01-03 | 7.90 ppb |
2018-01-03 | 7.90 ppb |
2018-01-17 | 8.80 ppb |
2018-01-17 | 8.80 ppb |
2018-01-17 | 8.30 ppb |
2018-01-17 | 8.30 ppb |
2018-01-17 | 8.30 ppb |
2018-01-17 | 8.30 ppb |
2018-01-17 | 8.20 ppb |
2018-01-17 | 8.20 ppb |
2018-01-17 | 8.50 ppb |
2018-01-17 | 8.50 ppb |
2018-01-17 | 8.00 ppb |
2018-01-17 | 8.00 ppb |
2018-01-17 | 8.60 ppb |
2018-01-17 | 8.60 ppb |
2018-01-17 | 8.20 ppb |
2018-01-17 | 8.20 ppb |
2018-02-07 | 9.40 ppb |
2018-02-07 | 9.40 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 9.20 ppb |
2018-02-07 | 9.20 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 9.20 ppb |
2018-02-07 | 9.20 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 9.50 ppb |
2018-02-07 | 8.60 ppb |
2018-02-07 | 8.60 ppb |
2018-02-21 | 9.00 ppb |
2018-02-21 | 9.00 ppb |
2018-02-21 | 8.60 ppb |
2018-02-21 | 8.60 ppb |
2018-02-21 | 8.40 ppb |
2018-02-21 | 8.40 ppb |
2018-02-21 | 8.30 ppb |
2018-02-21 | 8.30 ppb |
2018-02-21 | 8.30 ppb |
2018-02-21 | 8.30 ppb |
2018-02-21 | 8.60 ppb |
2018-02-21 | 8.60 ppb |
2018-02-21 | 8.60 ppb |
2018-02-21 | 8.60 ppb |
2018-02-21 | 8.10 ppb |
2018-02-21 | 8.10 ppb |
2018-03-07 | 9.90 ppb |
2018-03-07 | 9.90 ppb |
2018-03-07 | 10.00 ppb |
2018-03-07 | 10.00 ppb |
2018-03-07 | 9.40 ppb |
2018-03-07 | 9.40 ppb |
2018-03-07 | 8.80 ppb |
2018-03-07 | 8.80 ppb |
2018-03-07 | 9.30 ppb |
2018-03-07 | 9.30 ppb |
2018-03-07 | 9.40 ppb |
2018-03-07 | 9.40 ppb |
2018-03-07 | 9.40 ppb |
2018-03-07 | 9.40 ppb |
2018-03-07 | 9.50 ppb |
2018-03-07 | 9.50 ppb |
2018-03-20 | 8.70 ppb |
2018-03-20 | 8.70 ppb |
2018-03-20 | 8.60 ppb |
2018-03-20 | 8.60 ppb |
2018-03-20 | 8.50 ppb |
2018-03-20 | 8.50 ppb |
2018-03-20 | 8.30 ppb |
2018-03-20 | 8.30 ppb |
2018-03-20 | 8.50 ppb |
2018-03-20 | 8.50 ppb |
2018-03-20 | 8.90 ppb |
2018-03-20 | 8.90 ppb |
2018-03-20 | 8.60 ppb |
2018-03-20 | 8.60 ppb |
2018-03-20 | 8.30 ppb |
2018-03-20 | 8.30 ppb |
2018-04-04 | 8.50 ppb |
2018-04-04 | 8.50 ppb |
2018-04-04 | 8.40 ppb |
2018-04-04 | 8.40 ppb |
2018-04-04 | 8.60 ppb |
2018-04-04 | 8.60 ppb |
2018-04-04 | 8.40 ppb |
2018-04-04 | 8.40 ppb |
2018-04-04 | 8.40 ppb |
2018-04-04 | 8.40 ppb |
2018-04-04 | 8.50 ppb |
2018-04-04 | 8.50 ppb |
2018-04-04 | 8.70 ppb |
2018-04-04 | 8.70 ppb |
2018-04-04 | 8.30 ppb |
2018-04-04 | 8.30 ppb |
2018-04-18 | 7.90 ppb |
2018-04-18 | 7.90 ppb |
2018-04-18 | 8.40 ppb |
2018-04-18 | 8.40 ppb |
2018-04-18 | 7.80 ppb |
2018-04-18 | 7.80 ppb |
2018-04-18 | 7.50 ppb |
2018-04-18 | 7.50 ppb |
2018-04-18 | 8.50 ppb |
2018-04-18 | 8.50 ppb |
2018-04-18 | 7.80 ppb |
2018-04-18 | 7.80 ppb |
2018-04-18 | 8.00 ppb |
2018-04-18 | 8.00 ppb |
2018-04-18 | 7.60 ppb |
2018-04-18 | 7.60 ppb |
2018-05-02 | 9.20 ppb |
2018-05-02 | 9.20 ppb |
2018-05-02 | 8.90 ppb |
2018-05-02 | 8.90 ppb |
2018-05-02 | 9.50 ppb |
2018-05-02 | 9.50 ppb |
2018-05-02 | 9.30 ppb |
2018-05-02 | 9.30 ppb |
2018-05-02 | 8.90 ppb |
2018-05-02 | 8.90 ppb |
2018-05-02 | 9.20 ppb |
2018-05-02 | 9.20 ppb |
2018-05-02 | 9.60 ppb |
2018-05-02 | 9.60 ppb |
2018-05-02 | 9.40 ppb |
2018-05-02 | 9.40 ppb |
2018-05-07 | 10.4 ppb |
2018-05-16 | 13.5 ppb |
2018-05-16 | 13.5 ppb |
2018-05-16 | 13.2 ppb |
2018-05-16 | 13.2 ppb |
2018-05-16 | 13.2 ppb |
2018-05-16 | 13.2 ppb |
2018-05-16 | 13.7 ppb |
2018-05-16 | 13.7 ppb |
2018-05-16 | 13.4 ppb |
2018-05-16 | 13.4 ppb |
2018-05-16 | 12.8 ppb |
2018-05-16 | 12.8 ppb |
2018-05-16 | 13.3 ppb |
2018-05-16 | 13.3 ppb |
2018-05-16 | 13.0 ppb |
2018-05-16 | 13.0 ppb |
2018-06-01 | 13.5 ppb* |
2018-06-13 | 15.0 ppb |
2018-06-13 | 15.0 ppb |
2018-06-13 | 15.0 ppb |
2018-06-13 | 15.0 ppb |
2018-06-13 | 15.1 ppb |
2018-06-13 | 15.1 ppb |
2018-06-13 | 15.2 ppb |
2018-06-13 | 15.2 ppb |
2018-06-13 | 15.3 ppb |
2018-06-13 | 15.3 ppb |
2018-06-13 | 14.8 ppb |
2018-06-13 | 14.8 ppb |
2018-06-13 | 15.1 ppb |
2018-06-13 | 15.1 ppb |
2018-06-13 | 14.4 ppb |
2018-06-13 | 14.4 ppb |
2018-06-20 | 15.5 ppb |
2018-06-20 | 15.5 ppb |
2018-06-20 | 15.6 ppb |
2018-06-20 | 15.6 ppb |
2018-06-20 | 15.2 ppb |
2018-06-20 | 15.2 ppb |
2018-06-20 | 15.3 ppb |
2018-06-20 | 15.3 ppb |
2018-06-20 | 15.1 ppb |
2018-06-20 | 15.1 ppb |
2018-06-20 | 15.5 ppb |
2018-06-20 | 15.5 ppb |
2018-06-20 | 15.7 ppb |
2018-06-20 | 15.7 ppb |
2018-06-20 | 15.6 ppb |
2018-06-20 | 15.6 ppb |
2018-07-05 | 14.2 ppb |
2018-07-05 | 14.2 ppb |
2018-07-05 | 14.6 ppb |
2018-07-05 | 14.6 ppb |
2018-07-05 | 14.0 ppb |
2018-07-05 | 14.0 ppb |
2018-07-05 | 13.5 ppb |
2018-07-05 | 13.5 ppb |
2018-07-05 | 14.2 ppb |
2018-07-05 | 14.2 ppb |
2018-07-05 | 14.3 ppb |
2018-07-05 | 14.3 ppb |
2018-07-05 | 14.7 ppb |
2018-07-05 | 14.7 ppb |
2018-07-05 | 13.2 ppb |
2018-07-05 | 13.2 ppb |
2018-07-18 | 16.0 ppb |
2018-07-18 | 16.0 ppb |
2018-07-18 | 15.8 ppb |
2018-07-18 | 15.8 ppb |
2018-07-18 | 15.8 ppb |
2018-07-18 | 15.8 ppb |
2018-07-18 | 16.0 ppb |
2018-07-18 | 16.0 ppb |
2018-07-18 | 16.1 ppb |
2018-07-18 | 16.1 ppb |
2018-07-18 | 15.9 ppb |
2018-07-18 | 15.9 ppb |
2018-07-18 | 16.2 ppb |
2018-07-18 | 16.2 ppb |
2018-07-18 | 15.7 ppb |
2018-07-18 | 15.7 ppb |
2018-08-01 | 21.1 ppb |
2018-08-01 | 21.1 ppb |
2018-08-01 | 21.1 ppb |
2018-08-01 | 21.1 ppb |
2018-08-01 | 20.4 ppb |
2018-08-01 | 20.4 ppb |
2018-08-01 | 20.3 ppb |
2018-08-01 | 20.3 ppb |
2018-08-01 | 19.4 ppb |
2018-08-01 | 19.4 ppb |
2018-08-01 | 20.0 ppb |
2018-08-01 | 20.0 ppb |
2018-08-01 | 20.8 ppb |
2018-08-01 | 20.8 ppb |
2018-08-01 | 18.9 ppb |
2018-08-01 | 18.9 ppb |
2018-09-05 | 16.8 ppb |
2018-09-05 | 16.8 ppb |
2018-09-05 | 17.3 ppb |
2018-09-05 | 17.3 ppb |
2018-09-05 | 16.1 ppb |
2018-09-05 | 16.1 ppb |
2018-09-05 | 16.8 ppb |
2018-09-05 | 16.8 ppb |
2018-09-05 | 17.4 ppb |
2018-09-05 | 17.4 ppb |
2018-09-05 | 17.3 ppb |
2018-09-05 | 17.3 ppb |
2018-09-05 | 17.3 ppb |
2018-09-05 | 17.3 ppb |
2018-09-05 | 16.9 ppb |
2018-09-05 | 16.9 ppb |
2018-09-20 | 21.6 ppb |
2018-09-20 | 21.6 ppb |
2018-09-20 | 21.8 ppb |
2018-09-20 | 21.8 ppb |
2018-09-20 | 21.2 ppb |
2018-09-20 | 21.2 ppb |
2018-09-20 | 32.0 ppb |
2018-09-20 | 32.0 ppb |
2018-09-20 | 21.1 ppb |
2018-09-20 | 21.1 ppb |
2018-09-20 | 21.1 ppb |
2018-09-20 | 21.1 ppb |
2018-09-20 | 21.3 ppb |
2018-09-20 | 21.3 ppb |
2018-09-20 | 19.9 ppb |
2018-09-20 | 19.9 ppb |
2018-10-03 | 18.9 ppb |
2018-10-03 | 18.9 ppb |
2018-10-03 | 18.9 ppb |
2018-10-03 | 18.9 ppb |
2018-10-03 | 18.8 ppb |
2018-10-03 | 18.8 ppb |
2018-10-03 | 18.7 ppb |
2018-10-03 | 18.7 ppb |
2018-10-03 | 19.2 ppb |
2018-10-03 | 19.2 ppb |
2018-10-03 | 17.4 ppb |
2018-10-03 | 17.4 ppb |
2018-10-03 | 19.0 ppb |
2018-10-03 | 19.0 ppb |
2018-10-03 | 19.0 ppb |
2018-10-03 | 19.0 ppb |
2018-10-17 | 17.7 ppb |
2018-10-17 | 17.7 ppb |
2018-10-17 | 17.2 ppb |
2018-10-17 | 17.2 ppb |
2018-10-17 | 17.8 ppb |
2018-10-17 | 17.8 ppb |
2018-10-17 | 17.2 ppb |
2018-10-17 | 17.2 ppb |
2018-10-17 | 17.7 ppb |
2018-10-17 | 17.7 ppb |
2018-10-17 | 17.7 ppb |
2018-10-17 | 17.7 ppb |
2018-10-17 | 18.2 ppb |
2018-10-17 | 18.2 ppb |
2018-10-17 | 18.4 ppb |
2018-10-17 | 18.4 ppb |
2018-11-07 | 17.9 ppb |
2018-11-07 | 17.9 ppb |
2018-11-07 | 17.8 ppb |
2018-11-07 | 17.8 ppb |
2018-11-07 | 17.6 ppb |
2018-11-07 | 17.6 ppb |
2018-11-07 | 16.8 ppb |
2018-11-07 | 16.8 ppb |
2018-11-07 | 17.3 ppb |
2018-11-07 | 17.3 ppb |
2018-11-07 | 17.5 ppb |
2018-11-07 | 17.5 ppb |
2018-11-07 | 17.6 ppb |
2018-11-07 | 17.6 ppb |
2018-11-07 | 16.7 ppb |
2018-11-07 | 16.7 ppb |
2018-11-14 | 15.7 ppb |
2018-11-14 | 15.7 ppb |
2018-11-14 | 15.7 ppb |
2018-11-14 | 15.7 ppb |
2018-11-14 | 14.8 ppb |
2018-11-14 | 14.8 ppb |
2018-11-14 | 14.5 ppb |
2018-11-14 | 14.5 ppb |
2018-11-14 | 14.8 ppb |
2018-11-14 | 14.8 ppb |
2018-11-14 | 14.5 ppb |
2018-11-14 | 14.5 ppb |
2018-11-14 | 14.8 ppb |
2018-11-14 | 14.8 ppb |
2018-11-14 | 15.1 ppb |
2018-11-14 | 15.1 ppb |
2018-12-05 | 11.0 ppb |
2018-12-05 | 11.0 ppb |
2018-12-05 | 10.9 ppb |
2018-12-05 | 10.9 ppb |
2018-12-05 | 10.4 ppb |
2018-12-05 | 10.4 ppb |
2018-12-05 | 10.2 ppb |
2018-12-05 | 10.2 ppb |
2018-12-05 | 10.6 ppb |
2018-12-05 | 10.6 ppb |
2018-12-05 | 10.6 ppb |
2018-12-05 | 10.6 ppb |
2018-12-05 | 10.8 ppb |
2018-12-05 | 10.8 ppb |
2018-12-05 | 10.7 ppb |
2018-12-05 | 10.7 ppb |
2018-12-12 | 9.30 ppb |
2018-12-12 | 9.30 ppb |
2018-12-12 | 9.80 ppb |
2018-12-12 | 9.80 ppb |
2018-12-12 | 9.50 ppb |
2018-12-12 | 9.50 ppb |
2018-12-12 | 9.00 ppb |
2018-12-12 | 9.00 ppb |
2018-12-12 | 9.20 ppb |
2018-12-12 | 9.20 ppb |
2018-12-12 | 9.10 ppb |
2018-12-12 | 9.10 ppb |
2018-12-12 | 8.80 ppb |
2018-12-12 | 8.80 ppb |
2018-12-12 | 8.90 ppb |
2018-12-12 | 8.90 ppb |
2019-01-02 | 10.00 ppb |
2019-01-02 | 10.00 ppb |
2019-01-02 | 10.2 ppb |
2019-01-02 | 10.2 ppb |
2019-01-02 | 9.80 ppb |
2019-01-02 | 9.80 ppb |
2019-01-02 | 9.00 ppb |
2019-01-02 | 9.00 ppb |
2019-01-02 | 9.60 ppb |
2019-01-02 | 9.60 ppb |
2019-01-02 | 10.00 ppb |
2019-01-02 | 10.00 ppb |
2019-01-02 | 9.30 ppb |
2019-01-02 | 9.30 ppb |
2019-01-02 | 9.20 ppb |
2019-01-02 | 9.20 ppb |
2019-01-16 | 7.50 ppb |
2019-01-16 | 7.50 ppb |
2019-01-16 | 8.10 ppb |
2019-01-16 | 8.10 ppb |
2019-01-16 | 7.80 ppb |
2019-01-16 | 7.80 ppb |
2019-01-16 | 7.70 ppb |
2019-01-16 | 7.70 ppb |
2019-01-16 | 7.50 ppb |
2019-01-16 | 7.50 ppb |
2019-01-16 | 7.70 ppb |
2019-01-16 | 7.70 ppb |
2019-01-16 | 8.00 ppb |
2019-01-16 | 8.00 ppb |
2019-01-16 | 7.40 ppb |
2019-01-16 | 7.40 ppb |
2019-02-06 | 7.00 ppb |
2019-02-06 | 7.00 ppb |
2019-02-06 | 7.70 ppb |
2019-02-06 | 7.70 ppb |
2019-02-06 | 8.00 ppb |
2019-02-06 | 8.00 ppb |
2019-02-06 | 7.50 ppb |
2019-02-06 | 7.50 ppb |
2019-02-06 | 6.90 ppb |
2019-02-06 | 6.90 ppb |
2019-02-06 | 7.60 ppb |
2019-02-06 | 7.60 ppb |
2019-02-06 | 7.50 ppb |
2019-02-06 | 7.50 ppb |
2019-02-06 | 7.40 ppb |
2019-02-06 | 7.40 ppb |
2019-02-20 | 7.40 ppb |
2019-02-20 | 7.40 ppb |
2019-02-20 | 7.70 ppb |
2019-02-20 | 7.70 ppb |
2019-02-20 | 7.50 ppb |
2019-02-20 | 7.50 ppb |
2019-02-20 | 7.10 ppb |
2019-02-20 | 7.10 ppb |
2019-02-20 | 7.40 ppb |
2019-02-20 | 7.40 ppb |
2019-02-20 | 7.50 ppb |
2019-02-20 | 7.50 ppb |
2019-02-20 | 7.40 ppb |
2019-02-20 | 7.40 ppb |
2019-02-20 | 7.00 ppb |
2019-02-20 | 7.00 ppb |
2019-03-06 | 7.67 ppb |
2019-03-06 | 7.67 ppb |
2019-03-06 | 7.80 ppb |
2019-03-06 | 7.80 ppb |
2019-03-06 | 7.97 ppb |
2019-03-06 | 7.97 ppb |
2019-03-06 | 7.79 ppb |
2019-03-06 | 7.79 ppb |
2019-03-06 | 7.41 ppb |
2019-03-06 | 7.41 ppb |
2019-03-06 | 7.62 ppb |
2019-03-06 | 7.62 ppb |
2019-03-06 | 7.03 ppb |
2019-03-06 | 7.03 ppb |
2019-03-06 | 7.30 ppb |
2019-03-06 | 7.30 ppb |
2019-03-20 | 8.30 ppb |
2019-03-20 | 8.30 ppb |
2019-03-20 | 8.05 ppb |
2019-03-20 | 8.05 ppb |
2019-03-20 | 8.08 ppb |
2019-03-20 | 8.08 ppb |
2019-03-20 | 7.98 ppb |
2019-03-20 | 7.98 ppb |
2019-03-20 | 7.61 ppb |
2019-03-20 | 7.61 ppb |
2019-03-20 | 7.78 ppb |
2019-03-20 | 7.78 ppb |
2019-03-20 | 8.61 ppb |
2019-03-20 | 8.61 ppb |
2019-03-20 | 8.18 ppb |
2019-03-20 | 8.18 ppb |
2019-05-09 | 7.41 ppb |
2019-06-01 | 13.8 ppb* |
2019-07-10 | 16.8 ppb |
2019-07-10 | 16.8 ppb |
2019-07-10 | 16.2 ppb |
2019-07-10 | 16.2 ppb |
2019-07-10 | 17.8 ppb |
2019-07-10 | 17.8 ppb |
2019-07-10 | 17.8 ppb |
2019-07-10 | 17.8 ppb |
2019-07-10 | 17.1 ppb |
2019-07-10 | 17.1 ppb |
2019-07-10 | 16.6 ppb |
2019-07-10 | 16.6 ppb |
2019-07-10 | 17.2 ppb |
2019-07-10 | 17.2 ppb |
2019-07-10 | 15.7 ppb |
2019-07-10 | 15.7 ppb |
2019-07-24 | 22.9 ppb |
2019-07-24 | 22.9 ppb |
2019-07-24 | 22.3 ppb |
2019-07-24 | 22.3 ppb |
2019-07-24 | 22.0 ppb |
2019-07-24 | 22.0 ppb |
2019-07-24 | 22.9 ppb |
2019-07-24 | 22.9 ppb |
2019-07-24 | 21.6 ppb |
2019-07-24 | 21.6 ppb |
2019-07-24 | 22.6 ppb |
2019-07-24 | 22.6 ppb |
2019-07-24 | 22.7 ppb |
2019-07-24 | 22.7 ppb |
2019-07-24 | 21.8 ppb |
2019-07-24 | 21.8 ppb |
2019-08-07 | 21.4 ppb |
2019-08-07 | 21.4 ppb |
2019-08-07 | 21.8 ppb |
2019-08-07 | 21.8 ppb |
2019-08-07 | 20.0 ppb |
2019-08-07 | 20.0 ppb |
2019-08-07 | 20.0 ppb |
2019-08-07 | 20.0 ppb |
2019-08-07 | 21.3 ppb |
2019-08-07 | 21.3 ppb |
2019-08-07 | 18.6 ppb |
2019-08-07 | 18.6 ppb |
2019-08-07 | 21.4 ppb |
2019-08-07 | 21.4 ppb |
2019-08-07 | 20.4 ppb |
2019-08-07 | 20.4 ppb |
2019-08-21 | 22.1 ppb |
2019-08-21 | 22.1 ppb |
2019-08-21 | 22.3 ppb |
2019-08-21 | 22.3 ppb |
2019-08-21 | 21.4 ppb |
2019-08-21 | 21.4 ppb |
2019-08-21 | 23.0 ppb |
2019-08-21 | 23.0 ppb |
2019-08-21 | 21.2 ppb |
2019-08-21 | 21.2 ppb |
2019-08-21 | 22.9 ppb |
2019-08-21 | 22.9 ppb |
2019-08-21 | 22.8 ppb |
2019-08-21 | 22.8 ppb |
2019-08-21 | 21.9 ppb |
2019-08-21 | 21.9 ppb |
* Sample result is taken from the system's CCR report.