SIERRA VISTA, AZ · Cochise County

NORTHERN SUNRISE WC SIERRA SUNSET Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of June 21, 2010. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Cochise County, AZ.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.

System facts

System ID (PWSID): AZ0402055
System type: Community Water System
Population served: 88
Service connections: 25
Ownership: public/private mix
Water source: groundwater (wells)

NORTHERN SUNRISE WC SIERRA SUNSET is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, formerly serving 88 people from groundwater.

EPA's federal records list this system as inactive in 2010; the record below is historical.

As of August 1, 2026, its federal record holds 11 entries between 1979 and 1988, all of which EPA lists as closed. Nothing has been added since 1988.

All 11 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals.

Violation history

Monitoring, Regular
—
Nitrate
May 31, 1988 – May 30, 1991
Archived
Monitoring, Regular
—
Chromium
May 31, 1988 – May 30, 1991
Archived
Monitoring, Regular
—
Cadmium
May 31, 1988 – May 30, 1991
Archived
Monitoring, Regular
—
Selenium
May 31, 1988 – May 30, 1991
Archived
Monitoring, Regular
—
Barium
May 31, 1988 – May 30, 1991
Archived
Monitoring, Regular
—
Arsenic
May 31, 1988 – May 30, 1991
Archived
Monitoring, Regular
—
Mercury
June 24, 1979 – June 23, 1982
Archived
Monitoring, Regular
—
Fluoride
June 24, 1979 – June 23, 1982
Archived
Monitoring, Regular
—
Barium
June 24, 1979 – June 23, 1982
Archived
Monitoring, Regular
—
Arsenic
June 24, 1979 – June 23, 1982
Archived
Monitoring, Regular
—
Nitrate
June 24, 1979 – June 23, 1982
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
May 31, 1988 – May 30, 1991	Monitoring, Regular	Nitrate	—	Archived
May 31, 1988 – May 30, 1991	Monitoring, Regular	Chromium	—	Archived
May 31, 1988 – May 30, 1991	Monitoring, Regular	Cadmium	—	Archived
May 31, 1988 – May 30, 1991	Monitoring, Regular	Selenium	—	Archived
May 31, 1988 – May 30, 1991	Monitoring, Regular	Barium	—	Archived
May 31, 1988 – May 30, 1991	Monitoring, Regular	Arsenic	—	Archived
June 24, 1979 – June 23, 1982	Monitoring, Regular	Mercury	—	Archived
June 24, 1979 – June 23, 1982	Monitoring, Regular	Fluoride	—	Archived
June 24, 1979 – June 23, 1982	Monitoring, Regular	Barium	—	Archived
June 24, 1979 – June 23, 1982	Monitoring, Regular	Arsenic	—	Archived
June 24, 1979 – June 23, 1982	Monitoring, Regular	Nitrate	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 6, 2006State Compliance achieved59 linked violations
December 6, 2006State Compliance achieved53 linked violations
December 6, 2006State Compliance achieved16 linked violations
December 6, 2006State Compliance achieved13 linked violations
September 24, 1980State Othergeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

NORTHERN SOUTHERN SUNRISE WC

520-458-5470

SIERRA VISTA, AZ 85635