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Tap water quality report

Arches National Park Hq

EPA monitoring tested this supplier for 24 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

24
contaminants tested
6
detected
116
people served
0
health-based violations
Utah rankingsLead in UtahPFAS in Utah
Water source
Ground water
Ownership
Federal government
Counties served
Grand

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
123
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Archived 2026-01-01 → 2026-03-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2024-07-01 → 2024-09-30
MR Monitoring Resolved 2024-07-01 → 2024-09-30
MR Monitoring Resolved 2024-07-01 → 2024-09-30
MR Monitoring Resolved 2023-10-01 → 2023-12-31
MR Monitoring Resolved 2023-10-01 → 2023-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate-Nitrite
8045.5 µg/L 80%
of the EPA limit 10000 µg/L
worst single sample: 8140 µg/L
10/10 SYR4 2012–2019
Nitrate
416 µg/L 4.2%
of the EPA limit 10000 µg/L
 4/4 SYR4 2012–2014
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 2/2 LCR 2026
Ethylbenzene
0.2200 µg/L 0%
of the EPA limit 700 µg/L
 1/3 SYR4 2015
Toluene
0.2000 µg/L 0%
of the EPA limit 1000 µg/L
 1/3 SYR4 2015
Xylenes, Total
0.7000 µg/L 0%
of the EPA limit 10000 µg/L
 1/3 SYR4 2015
18 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneBenzeneChlorobenzeneCarbon TetrachlorideDichloromethaneStyreneTetrachloroethyleneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SWENSON, CHRISTOPHER DEREK
Phone
435-259-4712
Email
[email protected]

Frequently asked questions about Arches National Park Hq

Is Arches National Park Hq tap water safe to drink?

EPA monitoring detected 6 contaminants in Arches National Park Hq's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Arches National Park Hq's water?

EPA monitoring detected Nitrate-Nitrite, Nitrate, Lead, Ethylbenzene, Toluene, and others. The full list with the level and data source for each is above.

How many people does Arches National Park Hq serve?

Arches National Park Hq reports serving 116 people in Utah, per its EPA record.

Has Arches National Park Hq had any water quality violations?

The EPA has 123 violations on file for Arches National Park Hq, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.