City and town drinking water records

Water systems serving Surprise, AZ

11 community water systems have a mapped service area in Surprise, AZ. Epcor - Agua Fria covers 25% of the area inside Surprise's Census boundary and reports serving 127,718 people in all.

3 of them (27%) had at least one health-based violation in the last 10 years. 2 systems still have one unresolved.

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

10 systems filed a lead service line inventory listing 0 lead lines, 0 galvanized lines that must be replaced and 5,352 lines of unknown material.

4 more systems are placed in Surprise 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: 11
Systems with a health-based violation, last 10 years: 3
Systems with one unresolved: 2
Lead service lines in inventories: 0

Water systems serving Surprise

11 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
Epcor - Agua Fria	Covers 25% of Surprise	127,718	Surface water	1	0	0
Surprise City of - Mountain Vista	Covers 18% of Surprise	40,007	Groundwater	0	0	0
Beardsley Water Company 1	Mapped area inside Surprise	10,263	Groundwater	0	0	0
City of El Mirage	Covers 1% of Surprise	39,884	Groundwater	0	1	0
West End Water Company - Wittman	Covers 1% of Surprise	1,200	Groundwater	0	0	0
Saguaro Acres CFD	Mapped area inside Surprise	175	Groundwater	1	2	No inventory
Epcor - Sun City	Covers 1% of Surprise	38,016	Groundwater	0	0	0
Saguaro View MGMT Company	Mapped area inside Surprise	400	Groundwater	0	0	0
Rancho Wells Inc	Mapped area inside Surprise	59	Groundwater	1	0	0
Epcor - North East Agua Fria	Covers under 1% of Surprise	14,723	Groundwater	0	0	0
Desert Oasis	Mapped area inside Surprise	23,963	Groundwater	0	0	0

Systems placed by EPA's town record in Surprise

4 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
Surprise, City of Buena Vista	Town on record	520	Groundwater	0	0	No inventory
Peak View Ranch	Town on record	508	Groundwater	0	1	0
White Tank Well Inc	Town on record	87	Groundwater	0	0	0
Two Tanks Community Well	Town on record	76	Groundwater	3	4	0

Other cities and towns in Maricopa County

40 places

Back to Maricopa 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