City and town drinking water records

Water systems serving Chico, CA

2 community water systems have a mapped service area in Chico, CA. Cal-Water Service Co.-Chico covers 67% of the area inside Chico's Census boundary and reports serving 114,925 people in all.

1 of them had at least one health-based violation in the last 10 years. 1 system still has one unresolved.

2 rely mainly on groundwater, counting water bought from other systems.

Their lead service line inventories list 0 lead lines, 0 galvanized lines that must be replaced and 19,550 lines of unknown material.

Community water systems: 2
Systems with a health-based violation, last 10 years: 1
Systems with one unresolved: 1
Lead service lines in inventories: 0

Water systems serving Chico

2 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Cal-Water Service Co.-Chico	Covers 67% of Chico	114,925	Groundwater	0	0	0
Almond Grove Mobile Park	Mapped area inside Chico	253	Groundwater	1	2	0

Other cities and towns in Butte County

19 places

Back to Butte County, CA

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations