WILLIAMS CITY OF
PWSID: AZ0403026 · Williams, AZ · Serves 3,145 people
According to EPA Safe Drinking Water Information System (SDWIS), WILLIAMS CITY OF (PWSID AZ0403026) in Williams, AZ is listed as a CWS water system covering about 3,145 people. The same extract lists 21 health-based violation records spanning 2017-2025. Those 21 health-based rows for WILLIAMS CITY OF cover contaminants such as Interim Enhanced Surface Water Treatment Rule, CARBON, TOTAL, Arsenic; they remain historical EPA registry entries, not a current compliance or drinkability score.
WILLIAMS CITY OF has 21 health-based violation records in this historical extract. Monitoring and reporting records are not included.
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 Interim Enhanced Surface Water Treatment Rule, CARBON, TOTAL, Arsenic. Recorded violations span 2017–2025. 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)
- AZ0403026
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Williams, AZ
- Population Served
- 3,145
- Health Violations
- Yes (21)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | 12 | 12 |
| CARBON, TOTAL | 8 | 8 |
| Arsenic | 1 | 1 |
Violation History (21)
Frequently Asked Questions
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Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest WILLIAMS CITY OF on cumulative violation count (21) and EPA-reported population served (3,145). Violation-count peers include NEW STUYAHOK WATER SYSTEM, MOUNTAIN VILLAGE WATER SYSTEM, DOUBLE SPRINGS, TOWN OF W&S BOARD. Population peers include COTTONWOOD MUTUAL, FOLLANSBEE MUNICIPAL, BEAVER LAKE ASSOCIATION INC.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
WILLIAMS CITY OF (AZ0403026) is drawn from EPA SDWIS. Nearby county systems in this extract include FLAGSTAFF CITY OF; GRAND CANYON NATIONAL PARK; DONEY PARK WATER; PAGE CITY OF. Health-based rows (21 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.