Residents of Fischer’s Place Mobile Home Park near Nyssa are relying on bottled water after Oregon regulators found arsenic in the park’s well at levels nearly six times the federal drinking-water standard. People living at the park say they were slow to receive clear warnings and that limited bottled-water supplies are not enough for their families. The Oregon Health Authority issued a Do Not Drink advisory on Sept. 14 after a routine sample showed 57.7 parts per billion of arsenic, compared with the federal limit of 10 parts per billion. A follow-up sample showed 35 parts per billion, agency spokesperson Jonathan Modie said. The park, just outside Nyssa near the Oregon-Idaho border, is home to about 37 households, many of them primarily Spanish-speaking. Residents said some first learned the water was unsafe from a county emergency manager’s Facebook post on Sept. 16, before receiving a text from the park manager. Alexandra Anaya, who lives at Fischer’s Place with her five children, said her 14-year-old daughter’s hair has been falling out. Hair loss can be associated with prolonged arsenic exposure, but the available information does not establish that the water caused her daughter’s symptoms. Arsenic exposure can raise the risk of cancer and other health problems, according to the health authority. Anaya said the bottled water provided to residents is insufficient for her household of seven. Several residents said the park manager told them to take no more than five packs a week. Community organizations and county emergency staff have delivered water, including seven pallets supplied by the Oregon Food Bank after an initial delivery of 30 cases. Food bank community organizer Eddie Melendrez said he and other workers went door to door with county staff and a farmworker aid group to explain the arsenic risk in Spanish. He said some families did not know free bottled water was available. Arsenic has been detected in Fischer’s Place well water 26 times since 2004, according to state records. Since the park’s owner, Todd Pentrack, bought it in 2019, tests have found elevated arsenic six times. Pentrack told OPB he had been in contact with state health officials since Sept. 14, disputing the agency spokesperson’s account that it had not heard directly from him. He said he believed residents had been supplied with bottled water and that the on-site manager was handling the response. Pentrack said he would make changes to the water system if needed. Modie said arsenic can be removed with specialized filtration, but the property owner is responsible for installing and maintaining a safe system. Mobile home parks can struggle to meet drinking-water standards when they lack trained staff to operate their systems, he said. Fischer’s Place is one of three Malheur County mobile home parks currently under Do Not Drink advisories. One has been under an advisory since 2015 because of arsenic; another has faced one since last year because of high nitrate levels. Modie described the problem as statewide. County Emergency Manager Rich Harriman warned residents not to boil the water, which does not make arsenic-contaminated water safe. The continuing advisory leaves families dependent on delivered water while they wait for a lasting fix and more reliable communication.