Question 1

Is Four Corners Power - APS water safe to drink?

Accepted Answer

Four Corners Power - APS (PWS ID: 093500333) has 28 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 595 people using Surface Water sources.

Question 2

How many people does Four Corners Power - APS serve?

Accepted Answer

EPA SDWIS reports that Four Corners Power - APS serves 595 people (this public water system's service population, not the municipal population of Fruitland or any other city). It is a Public/Private-owned system using Surface Water water sources with 20 service connections. The operator address is listed in Fruitland, EPA Region 9 — Tribal Water Systems.

Question 3

What type of violations does Four Corners Power - APS have?

Accepted Answer

Four Corners Power - APS has 28 total violations: 0 health-based violations (MCL exceedances or treatment failures), 13 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Four Corners Power - APS water?

Accepted Answer

No PFAS testing data is available for Four Corners Power - APS under the EPA's UCMR5 monitoring program.

Question 5

What water source does Four Corners Power - APS use?

Accepted Answer

Four Corners Power - APS uses Surface Water as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.

Question 6

Where does this data come from?

Accepted Answer

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Question 7

Where does Four Corners Power - APS sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Four Corners Power - APS ranks #26,654 of 29,740 by people served, and #121 of 129 in EPA Region 9 — Tribal Water Systems. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Four Corners Power - APS's violation count compare nationally?

Accepted Answer

Four Corners Power - APS has 28 recorded EPA SDWIS violations, fewer than 59% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 40% of that cohort has fewer violations than Four Corners Power - APS. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

Contaminant	Category	Count	Latest
LEAD AND COPPER RULE REVISIONS	RPT	3	2024
Thallium, Total	MR	2	2002
Arsenic	MR	1	2001
Chromium	MR	1	2001
CYANIDE	MR	1	2001
Fluoride	MR	1	2001
Mercury	MR	1	2001
Selenium	MR	1	2001
Antimony, Total	MR	1	2001
Coliform (TCR)	MR	1	2009
Barium	MR	1	2001
Beryllium, Total	MR	1	2001
Cadmium	MR	1	2001

Four Corners Power - APS

Four Corners Power - APS standing, mid SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Health-based violations on Four Corners Power - APS

Nationwide peers

Cross-state systems near this violation count

Cross-state systems with smaller service footprints