GRAND CANYON NATIONAL PARK
PWSID: AZ0403702 · Grand Canyon, AZ · Serves 16,590 people
According to EPA Safe Drinking Water Information System (SDWIS), GRAND CANYON NATIONAL PARK (PWSID AZ0403702) in Grand Canyon, AZ is listed as a CWS water system covering about 16,590 people. The same extract lists 13 health-based violation records spanning 1992-2024. Those 13 health-based rows for GRAND CANYON NATIONAL PARK cover contaminants such as Groundwater Rule, TTHM, LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
GRAND CANYON NATIONAL PARK has 13 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. 4 distinct EPA contaminant codes appear in this system's record, including Groundwater Rule, TTHM, LEAD AND COPPER RULE REVISIONS. Recorded violations span 1992–2024. 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)
- AZ0403702
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Grand Canyon, AZ
- Population Served
- 16,590
- Health Violations
- Yes (13)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Groundwater Rule | 6 | 6 |
| TTHM | 4 | 4 |
| LEAD AND COPPER RULE REVISIONS | 2 | 2 |
| Surface Water Treatment Rule | 1 | 1 |
Violation History (13)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| Groundwater Rule | Yes | Jul 1, 2022 |
| Groundwater Rule | Yes | Jul 1, 2022 |
| Groundwater Rule | Yes | Jun 1, 2022 |
| Groundwater Rule | Yes | Jun 1, 2022 |
| Groundwater Rule | Yes | Mar 1, 2022 |
| Groundwater Rule | Yes | Dec 1, 2021 |
| Surface Water Treatment Rule | Yes | Jan 1, 1992 |
Frequently Asked Questions
What does EPA SDWIS list for GRAND CANYON NATIONAL PARK?
How many people does GRAND CANYON NATIONAL PARK serve?
What violations does GRAND CANYON NATIONAL PARK have?
What contaminants have been found in GRAND CANYON NATIONAL PARK water?
Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest GRAND CANYON NATIONAL PARK on cumulative violation count (13) and EPA-reported population served (16,590). Violation-count peers include BETHEL HEIGHTS WATER SYSTEM, JASPER WATERWORKS, BALD KNOB WATERWORKS. Population peers include OLIVEHURST PUBLIC U.D., NAVAL AIR STATION/WHIDBEY ISLAND, PHOENIXVILLE WATER DEPT.
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
GRAND CANYON NATIONAL PARK (AZ0403702) is drawn from EPA SDWIS. Nearby county systems in this extract include FLAGSTAFF CITY OF; DONEY PARK WATER; PAGE CITY OF; GOLDEN SHORES WATER COMPANY. Health-based rows (13 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.