Fragile Water Systems in Oregon

12 community drinking-water systems in Oregon currently rated Fragile (MISI 41–60).

Systems in the Fragile band (MISI 41–60) face meaningful structural challenges across multiple risk families. Typical patterns include concurrent operational stress and capital pressure, or revenue fragility paired with governance risk.

SystemPop. ServedMISIBand

PORTLAND WATER BUREAU666K50.721Fragile

TUALATIN VALLEY WATER DISTRICT225K46.104Fragile

BEAVERTON, CITY OF88K46.467Fragile

TIGARD, CITY OF63K46.104Fragile

SUNRISE WATER AUTHORITY50K40.294Fragile

LAKE OSWEGO MUNICIPAL WATER40K49.387Fragile

CLACKAMAS RIVER WATER - CLACKAMAS30K46.911Fragile

MILWAUKIE, CITY OF21K42.340Fragile

SHERWOOD, CITY OF20K44.147Fragile

MOLALLA, CITY OF10K44.494Fragile

KERNVILLE-GLENEDEN-LINC BCH WD6K43.191Fragile

RIVERGROVE WATER DISTRICT4K40.345Fragile