City and town drinking water records

Water systems serving Sioux City, IA

2 community water systems have a mapped service area in Sioux City, IA. Sioux City Water Supply covers 43% of the area inside Sioux City's Census boundary and reports serving 85,791 people in all.

1 of them had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.

1 relies mainly on groundwater and 1 on surface water, counting water bought from other systems.

Their lead service line inventories list 4,274 lead lines, 1 galvanized line that must be replaced and 2,785 lines of unknown material.

1 more system is placed in Sioux City by EPA's town record because it has no service area map that lines up with its own records, so it is listed apart and not counted here.

Community water systems: 2
Systems with a health-based violation, last 10 years: 1
Systems with one unresolved: 0
Lead service lines in inventories: 4,274

Water systems serving Sioux City

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
Sioux City Water Supply	Covers 43% of Sioux City	85,791	Groundwater under direct influence	4	0	4,271
Sergeant Bluff Water Supply	Covers 2% of Sioux City	5,015	Groundwater	0	0	3

Systems placed by EPA's town record in Sioux City

1 system

EPA has no service area map for this system. It is placed by EPA's town record (EPA lists it serving this town), and without a map it is not counted in the figures above.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Berea Heights Inc	Town on record	33	Groundwater	0	0	0

Other cities and towns in Woodbury County

14 places

Back to Woodbury County, IA

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