City and town drinking water records

Water systems serving Longmont, CO

1 community water system has a mapped service area in Longmont, CO. City of Longmont covers 79% of the area inside Longmont's Census boundary and reports serving 102,866 people in all.

It had no health-based violation in the last 10 years.

Its lead service line inventory lists no lead lines, no galvanized lines that must be replaced and no lines of unknown material.

2 more systems are placed in Longmont by EPA's town record because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems

1

Systems with a health-based violation, last 10 years

0

Systems with one unresolved

0

Lead service lines in inventories

0

Water systems serving Longmont

1 system

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
City of Longmont	Covers 79% of Longmont	102,866	Surface water	0	0	0

Systems placed by EPA's town record in Longmont

2 systems

EPA has no service area map for these systems. They are placed by EPA's town record (EPA lists them serving this town), and without a map they are not counted in the figures above.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Countryside of Longmont	Town on record	775	Purchased surface water	0	1	0
St Vrain MHP LLC	Town on record	544	Purchased surface water	0	0	0

Other cities and towns in Boulder County

17 places

• Allenspark
• Altona
• Boulder
• Eldorado Springs
• Gunbarrel
• Jamestown
• Lafayette
• Lazy Acres
• Leyner
• Louisville
• Lyons
• Nederland
• Niwot
• Paragon Estates
• Pine Brook Hill
• Superior
• Ward

Back to Boulder County, CO

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