Fragile Water Systems in California

16 community drinking-water systems in California 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

LOS ANGELES-CITY, DEPT. OF WATER & POWER3.9M41.397Fragile

SFPUC CITY DISTRIBUTION DIVISION848K42.049Fragile

LONG BEACH-CITY, WATER DEPT.467K40.633Fragile

IRVINE RANCH WATER DISTRICT445K46.510Fragile

CITY OF ANAHEIM349K41.899Fragile

SAN GABRIEL VALLEY WATER CO.-EL MONTE248K41.860Fragile

CORONA, CITY OF169K52.677Fragile

PASADENA-CITY, WATER DEPT.164K41.107Fragile

EAST VALLEY WATER DISTRICT109K40.643Fragile

CARMICHAEL WATER DISTRICT41K43.081Fragile

NORCO, CITY OF25K43.520Fragile

PICO WD22K41.028Fragile

LINDSAY, CITY OF13K40.641Fragile

CITY OF NEWMAN-WATER DEPARTMENT12K40.296Fragile

CASITAS MUNICIPAL WATER DIST11K40.641Fragile

CITY OF GRIDLEY7K42.741Fragile