City and town drinking water records

Water systems serving Herculaneum, MO

3 community water systems have a mapped service area in Herculaneum, MO. Herculaneum PWS covers 69% of the area inside Herculaneum's Census boundary and reports serving 4,227 people in all.

None of them had a health-based violation in the last 10 years.

1 relies mainly on groundwater and 2 on surface water, counting water bought from other systems.

Their lead service line inventories list 2 lead lines, 18 galvanized lines that must be replaced and 7,157 lines of unknown material.

1 more system is placed in Herculaneum 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

3

Systems with a health-based violation, last 10 years

0

Systems with one unresolved

0

Lead service lines in inventories

2

Water systems serving Herculaneum

3 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
Herculaneum PWS	Covers 69% of Herculaneum	4,227	GUP	0	0	0
Jefferson County PWSD 7	Covers 27% of Herculaneum	6,100	Groundwater	0	0	0
Festus PWS	Covers 6% of Herculaneum	12,054	GUP	0	0	2

Systems placed by EPA's town record in Herculaneum

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
Jefferson County Water Authority	Town on record	25	Groundwater under direct influence	0	0	0

Other cities and towns in Jefferson County

24 places

• Arnold
• Barnhart
• Briarwood Estates
• Byrnes Mill
• Cedar Hill
• Cedar Hill Lakes
• Crystal City
• De Soto
• Festus
• High Ridge
• Hillsboro
• Horine
• Imperial
• Kimmswick
• LaBarque Creek
• Lake Tekakwitha
• Murphy
• Olympian Village
• Parkdale
• Peaceful Village
• Pevely
• Raintree Plantation
• Scotsdale
• Summer Set

Back to Jefferson County, MO

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