City and town drinking water records

Water systems serving Marana, AZ

9 community water systems have a mapped service area in Marana, AZ. City of Tucson covers 18% of the area inside Marana's Census boundary and reports serving 732,906 people in all.

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

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

Their lead service line inventories list 0 lead lines, 341 galvanized lines that must be replaced and 141,319 lines of unknown material.

6 more systems are placed in Marana 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: 9
Systems with a health-based violation, last 10 years: 1
Systems with one unresolved: 1
Lead service lines in inventories: 0

Water systems serving Marana

9 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
City of Tucson	Covers 18% of Marana	732,906	Groundwater	0	0
Marana Municipal - Marana	Covers 7% of Marana	15,162	Groundwater	0	0
Marana Municipal - Picture Rocks	Covers 1% of Marana	5,278	Groundwater	0	0
Marana Municipal - Airline Lambert	Mapped area inside Marana	4,568	Groundwater	0	0
Marana Municipal - Hartman Vistas	Mapped area inside Marana	5,248	Groundwater	0	0
Oro Valley Water Countryside	Covers 1% of Marana	4,534	Groundwater	0	0
Rillito Water Users Assoc	Mapped area inside Marana	165	Groundwater	1	1
GW Saguaro Dist Water Co - Lyn Lee	Mapped area inside Marana	114	Groundwater	0	0
GW Saguaro Dist Water Co - Tortolita	Mapped area inside Marana	69	Groundwater	0	0

Systems placed by EPA's town record in Marana

6 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. 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
Marana DWID - Derringer	Town on record	1,950	Groundwater	2	0	No inventory
Marana Municipal - Silverbell Gateway	Town on record	750	Purchased groundwater	0	0	0
Marana DWID - Culver	Town on record	709	Groundwater	3	2	No inventory
Marana Municipal - Tortolita Mountain	Town on record	200	Purchased groundwater	0	0	No inventory
Rancho Tierra Blanca POA	Town on record	126	Groundwater	0	0	0
Marana Municipal - Palo Verde	Town on record	118	Groundwater	0	0	0

Other cities and towns in Pima County

38 places

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