SCUA Bylas

PWSID: 090400110 · San Carlos, AZ · Serves 3,160 people

According to EPA Safe Drinking Water Information System (SDWIS), SCUA Bylas (PWSID 090400110) in San Carlos, AZ is listed as a CWS water system covering about 3,160 people. The same extract lists 34 health-based violation records spanning 2016-2025. Those 34 health-based rows for SCUA Bylas cover contaminants such as Revised Total Coliform Rule, Groundwater Rule, Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.

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Health-Based Records

SCUA Bylas has 34 health-based violation records in this historical extract. Monitoring and reporting records are not included.

Population Served
3,160
Health-Based Violation Records
34
Distinct Contaminant Codes
3
Source Type
Groundwater

PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Revised Total Coliform Rule, Groundwater Rule, Surface Water Treatment Rule. Recorded violations span 2016–2025. Day-to-day primacy enforcement for this system runs through the Arizona drinking-water program, not EPA directly.

A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Arizona state drinking-water program's public portal.

System Details

EPA ID (PWSID)
090400110
System Type
CWS
Water Source
Groundwater
Location
San Carlos, AZ
Population Served
3,160
Health Violations
Yes (34)

What contaminants are in this water system?

Violation History (34)

Contaminant Health Date
Groundwater Rule Yes Oct 10, 2025
Surface Water Treatment Rule Yes May 28, 2025
Revised Total Coliform Rule Yes Aug 1, 2024
Revised Total Coliform Rule Yes Aug 1, 2024
Revised Total Coliform Rule Yes Aug 1, 2024
Revised Total Coliform Rule Yes May 1, 2023
Revised Total Coliform Rule Yes May 1, 2023
Revised Total Coliform Rule Yes May 1, 2023
Revised Total Coliform Rule Yes May 1, 2023
Revised Total Coliform Rule Yes May 1, 2023
Revised Total Coliform Rule Yes May 1, 2023
Revised Total Coliform Rule Yes May 1, 2023
Revised Total Coliform Rule Yes May 1, 2023
Groundwater Rule Yes Mar 4, 2023
Groundwater Rule Yes Mar 4, 2023
Groundwater Rule Yes Mar 4, 2023
Groundwater Rule Yes Mar 4, 2023
Groundwater Rule Yes Mar 4, 2023
Groundwater Rule Yes Mar 4, 2023
Groundwater Rule Yes Mar 4, 2023
Groundwater Rule Yes Mar 4, 2023
Revised Total Coliform Rule Yes Feb 1, 2023
Groundwater Rule Yes Sep 1, 2022
Groundwater Rule Yes Sep 1, 2022
Groundwater Rule Yes Sep 1, 2022
Revised Total Coliform Rule Yes Sep 30, 2018
Revised Total Coliform Rule Yes Sep 30, 2018
Revised Total Coliform Rule Yes Sep 30, 2018
Revised Total Coliform Rule Yes Jul 1, 2017
Revised Total Coliform Rule Yes Jul 1, 2017
Revised Total Coliform Rule Yes Jul 1, 2017
Revised Total Coliform Rule Yes Aug 1, 2016
Revised Total Coliform Rule Yes Aug 1, 2016
Revised Total Coliform Rule Yes Aug 1, 2016

Frequently Asked Questions

What does EPA SDWIS list for SCUA Bylas?
SCUA Bylas has 34 health-based violation records in this historical extract. Monitoring and reporting records are not included. The system uses groundwater water as its source.
How many people does SCUA Bylas serve?
SCUA Bylas serves 3,160 people in San Carlos, AZ. It is classified as a CWS water system.
What violations does SCUA Bylas have?
SCUA Bylas has 34 health-based violation records in PlainEnviro's extract spanning 2016–2025. Monitoring and reporting records are not included.
What contaminants have been found in SCUA Bylas water?
Violations have been recorded for 3 contaminants. The most frequent: Revised Total Coliform Rule, Groundwater Rule, Surface Water Treatment Rule.

Compare beyond Arizona

Nationwide peers by violations & population served

Cross-state SDWIS systems nearest SCUA Bylas on cumulative violation count (34) and EPA-reported population served (3,160). Violation-count peers include SCAMMON BAY WATER SYSTEM, SHISHMAREF WATER SYSTEM, SWIFTON WATERWORKS. Population peers include NEW CASTLE CORRECTIONAL FACILITY, MARTINSBURG MUNI AUTH, CARBON HILL UTILITIES BOARD.

About This Data

SCUA Bylas (090400110) is drawn from EPA SDWIS. Nearby county systems in this extract include PAYSON TOWN OF; WMATUA Miner Flat; SCUA Upper Seven Mile; PINE STRAWBERRY WID. Health-based rows (34 MCL/TT) are historical registry state, not a current drinkability score.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

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