City and town drinking water records

Water systems serving Oro Valley, AZ

3 community water systems have a mapped service area in Oro Valley, AZ. Oro Valley Water Utility covers 83% of the area inside Oro Valley's Census boundary and reports serving 42,316 people in all.

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

3 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 8,330 lines of unknown material.

1 more system is placed in Oro Valley 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

1

Lead service lines in inventories

0

Water systems serving Oro Valley

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
Oro Valley Water Utility	Covers 83% of Oro Valley	42,316	Groundwater	0	0	0
Metropolitan DWID	Covers 5% of Oro Valley	45,570	Groundwater	0	1	No inventory
La Cholla Airpark	Mapped area inside Oro Valley	250	Purchased groundwater	0	0	0

Systems placed by EPA's town record in Oro Valley

1 system

The service area map EPA has for this system does not line up with its own records. 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
Oro Valley Water Countryside	Town on record	4,534	Groundwater	0	0	0

Other cities and towns in Pima County

38 places

• Ajo
• Ali Chukson
• Ali Molina
• Arivaca
• Arivaca Junction
• Avra Valley
• Casas Adobes
• Catalina
• Catalina Foothills
• Comobabi
• Corona de Tucson
• Cowlic
• Drexel Heights
• Elephant Head
• Flowing Wells
• Green Valley
• Kleindale
• Marana
• Nelson
• Picture Rocks
• Pisinemo
• Rillito
• Rincon Valley
• Sahuarita
• Sells
• South Tucson
• Summerhaven
• Summit
• Tanque Verde
• Three Points
• Topawa
• Tucson
• Tucson Estates
• Tucson Mountains
• Vail
• Valencia West
• Ventana
• Why

Back to Pima County, AZ

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