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.
If the arsenic level in your well is above 10 Âµg/l (the federal standard) , stop drinking the water and use bottled water or water from another âsafeâ source (e.g., a public water supply known to have low arsenic levels).s many as 30,000 private wells in northeastern Wisconsin could contain arsenic levels in excess of 5 Âµg/l. Based on sampling results from public water systems, 73 wells serving the public exceed 10 Âµg/l. Arsenic levels between 5-10 Âµg/l warrant concern as there is a risk these levels may increase over time.