St. Helens Chronicle. The St. Helens woman has been missing for two weeks. Her boyfriend, currently in the Lane County jail for other offenses, is now considered a person of interest. Police are currently searching for St. Helens woman, Cheryl Hart, who has been missing for nearly two weeks.
First, there are typically two varieties, or species, of arsenic in water: arsenic 3 and arsenic 5.. This is significant because arsenic 3 is very difficult to remove from water and must be changed or oxidized to arsenic 5 before it can be removed.
The levels of arsenic and other regulated chemicals in public drinking water are published by water systems and readily available to consumers. In most states, the Department of Environmental Protection or its equivalent will also test an individualâs sample of private well water for arsenic and other chemicals.This study raises a couple of issues. First, we have to think again about whether 10 ppb arsenic as a U.S. drinking water standard is safe and protective of human health,â says Hamilton, who is the MBLâs chief academic and scientific officer and a senior scientist in the MBL Bay Paul Center.