UPDATE, 12:20 p.m.| Water samples taken Sunday have tested clean, according to a Mercer Island news release. This is the fourth day in a row that water samples have tested negative for E. coli contamination, but detective work on Mercer Island’s water pipes continue.
Seattle Public Utilities, which sends Mercer Island its water from the Cedar River watershed, has doubled the level of chlorine in the city’s water as it narrows down possible sites of contamination. The smell of chlorine can be removed from the water by boiling it, according to the city’s release.
The city says an investigation of 150 underground water vaults is nearly complete and that no abnormalities have surfaced so far.
ORIGINAL POST | Mercer Island remains under a boil-water advisory after water samples tested positive twice for E. coli since Sept. 27.
Samples taken Saturday came back clear of E. coli on Sunday, making that the third day of clear tests. Results from Sunday’s samples should be available around noon on Monday, according to the mercergov.org website. It’s unclear at what point the boil-water advisory will be lifted.
A child who became ill tested positive for E. coli on initial tests, but the state lab will need to confirm those reports, Public Health spokeswoman Hilary Karasz said Sunday. The child is not hospitalized and it’s not confirmed that the water system was the cause of the infection.
Mercer Island public schools are in session, using bottled water, portable hand-washing stations and heated meals.
Many restaurants are open on Mercer Island with limited menus, according to the city’s website: Toshi’s Teriyaki, Islander, Freshy’s Seafood Market, Sahara Pizza, Tully’s (7810 SE 27th St.), Yuzen Japanese Restaurant, Menchies, Mo’s Pizza, Zaw Pizza, Roberto’s Restaurant, QFC (Meat, Produce, Deli, Bakery, and AFC Sushi. Starbucks Kiosks are CLOSED), Baskin Robbins, Anise Thai Cuisine, Pon Proem Thai Restaurant, Albertson’s, Starbucks (8415 SE 68th St.), Starbucks (7620 SE 27th St.), Roanoke Inn, Phobulous, Qdoba Mexican Grill, Island Crust Cafe, Island Broiler, Mercer Island Sweets, Han’s Garden Restaurant, McDonalds, Bennett’s, Yo Mercer, Seven Star Chinese Restaurant and El Sombrero.