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Non-Transient Non-Community Water System · PWS UTAH13063

Grand Staircase Water Company

Prescott Valley, Utah 86315 - drinking water served from groundwater sources to 145 people, tracked in EPA SDWIS and UCMR5.

145
People served
375
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 375 drinking-water violations at Grand Staircase Water Company - above the Utah per-system average.

375
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
145
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Grand Staircase Water Company

Grand Staircase Water Company is a private-owned non-transient non-community water system that delivers drinking water to 145 residents in Prescott Valley, Utah (Kane County) through 3 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 375 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 345 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 24 violations (RPT). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Utah, EPA tracks 1,068 public water systems serving 3,870,776 people, with 169,784 cumulative violations and 10,671 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 159 violations. Statewide, 91 of 129 UCMR5-tested systems have reported PFAS detections (70.5%).

Grand Staircase Water Company's 375 violations sit above the Utah average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
145
Total Violations
375
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
3
County
Kane
School/Daycare
No
MCL Violations
0
Monitoring Violations
345
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule RPT 24 2020
Coliform (TCR) MR 14 2015
Revised Total Coliform Rule MON 12 2020
trans-1,2-Dichloroethylene MR 11 2012
1,2-Dichloroethane MR 11 2012
Carbon tetrachloride MR 11 2012
Trichloroethylene MR 11 2012
1,1,2-Trichloroethane MR 11 2012
Tetrachloroethylene MR 11 2012
CHLOROBENZENE MR 11 2012
Benzene MR 11 2012
1,2,4-Trichlorobenzene MR 11 2012
Toluene MR 11 2012
Ethylbenzene MR 11 2012
cis-1,2-Dichloroethylene MR 11 2012
p-Dichlorobenzene MR 11 2012
Vinyl chloride MR 11 2012
Styrene MR 11 2012
DICHLOROMETHANE MR 11 2012
Xylenes, Total MR 11 2012
o-Dichlorobenzene MR 11 2012
1,1,1-Trichloroethane MR 11 2012
1,2-Dichloropropane MR 11 2012
1,1-Dichloroethylene MR 11 2012
Nitrate MR 7 2015
Lead and Copper Rule MR 6 2012
Di(2-ethylhexyl) phthalate MR 3 2014
Dinoseb MR 3 2014
Hexachlorocyclopentadiene MR 3 2014
Carbofuran MR 3 2014

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Grand Staircase Water Company.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID UTAH13063 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Utah Drinking Water Authority

Utah's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find UT regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2020 Revised Total Coliform Rule RPT 24 SDWIS / UTAH13063 / 8000
2020 Revised Total Coliform Rule MON 12 SDWIS / UTAH13063 / 8000
2017 Revised Total Coliform Rule Other 3 SDWIS / UTAH13063 / 8000
2015 Coliform (TCR) MR 14 SDWIS / UTAH13063 / 3100
2015 Nitrate MR 7 SDWIS / UTAH13063 / 1040
2014 Di(2-ethylhexyl) phthalate MR 3 SDWIS / UTAH13063 / 2039
2014 Dinoseb MR 3 SDWIS / UTAH13063 / 2041
2014 Hexachlorocyclopentadiene MR 3 SDWIS / UTAH13063 / 2042
2014 Carbofuran MR 3 SDWIS / UTAH13063 / 2046
2014 LASSO MR 3 SDWIS / UTAH13063 / 2051
2014 Heptachlor MR 3 SDWIS / UTAH13063 / 2065
2014 2,4-D MR 3 SDWIS / UTAH13063 / 2105
2014 HEXACHLOROBENZENE MR 3 SDWIS / UTAH13063 / 2274
2014 Benzo(a)pyrene MR 3 SDWIS / UTAH13063 / 2306
2014 Total Polychlorinated Biphenyls (PCB) MR 3 SDWIS / UTAH13063 / 2383

How Grand Staircase Water Company Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Grand Staircase Water Company Utah avg Federal benchmark
Total violations 375 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 70.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 145 3,624 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,068 regulated public water systems in Utah.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Grand Staircase Water Company water safe to drink? ▼
Grand Staircase Water Company (PWS ID: UTAH13063) has 375 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 145 people using Groundwater sources.
How many people does Grand Staircase Water Company serve? ▼
Grand Staircase Water Company serves 145 people in Prescott Valley, Utah. It is a Private-owned system using Groundwater water sources with 3 service connections.
What type of violations does Grand Staircase Water Company have? ▼
Grand Staircase Water Company has 375 total violations: 0 health-based violations (MCL exceedances or treatment failures), 345 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Grand Staircase Water Company water? ▼
No PFAS testing data is available for Grand Staircase Water Company under the EPA's UCMR5 monitoring program.
What water source does Grand Staircase Water Company use? ▼
Grand Staircase Water Company uses Groundwater 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.
Where does this data come from? ▼
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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.