WaterVerge

Is Parowan, UT Tap Water Safe to Drink?

Graded D+, with 34 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

4K residents served 3 water systems PWSID: UTAH11010
Overall Score
50 / 100
Violations
34 active
Last Updated
May 2026
Source
Groundwater
#135 of 177 in Utah Top 83% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
D+GRADE
Water Quality Grade
50/100
waterverge.com
D+ 50/100

Parowan, UT — Water Quality Report

Parowan's drinking water received a grade of D+ (50 out of 100), indicating poor water quality. The city's 3 water systems serve approximately 4,352 residents using groundwater.

Lead levels were measured at 2.4 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 676 violations on record, including 20 health-based violations. 34 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Parowan's water

Parowan ranks #135 out of 177 cities in Utah for water quality, placing it among the lowest-rated in the state.

Parowan relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

The system has seen 16 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
50 out of 100 Grade D+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
0/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 2.4 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Parowan, UT water safe to drink?

Concerns Identified

Parowan's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (50/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 4,352 residents using groundwater (wells).

34
Active Violations
2.4 ppb
Lead (90th %ile)
3 events
Disaster History

Recent water quality updates for Parowan

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Parowan's water quality assessment. Grade: D+ (50/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
2 drinking water violations recorded

Contaminants: LEAD AND COPPER RULE REVISIONS, Consumer Confidence Rule.

Violation
2 drinking water violations recorded

Contaminants: Lead and Copper Rule.

Disaster
FLOODING

Federal disaster declaration (FEMA DR-4752). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3223). Coastal Storm event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Parowan's water supply.

Lead Within Limits
Detected: 2.4 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Parowan's water system has 676 total violations on record, including 20 health-based violations. 34 remain unresolved. 16 violations were issued in the last 5 years.

OtherRPTMRMONMCLTT
Most recent violations:
Oct 2025 Consumer Confidence Rule Open
Jul 2025 LEAD AND COPPER RULE REVISIONS Open
Jul 2025 Consumer Confidence Rule Open
Mar 2025 Lead and Copper Rule Open
Mar 2025 Lead and Copper Rule Open

Flood & environmental risk

Iron County has experienced 3 federally declared disasters since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

FLOODING
Flood FEMA DR-4752
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA DR-3223
FLOODING AND LANDSLIDES
Flood FEMA DR-1598

Where does Parowan's water come from?

Parowan's drinking water comes from groundwater (wells), supplied by 3 water systems serving approximately 4,352 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Parowan residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Parowan's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Parowan's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
2.4 ppb
EPA Action Level: 15 ppb · 16% of limit
Safe Level
Compliance Record

Violation summary

676
Total violations
20
Health-based
34
Active / unresolved
Oct 2025
Most recent violation
Compliance Record

Violations & advisories

676 Total
34 Active
20 Health-based
642 Resolved
Violations by category
Volatile Organic Chemicals
231
Synthetic Organic Chemicals
197
Inorganic Chemicals
73
Radionuclides and Revised Rad Rule
56
Total Coliform Rule
38
Oct 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Mar 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Mar 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2023 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Nov 2023 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2023 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2021 Active
Consumer Confidence Rule
Other Violation 0
Oct 2019 Active
Consumer Confidence Rule
Other Violation 0
Jul 2019 Active
Consumer Confidence Rule
Other Violation 0
Oct 2017 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Oct 2017 Active
Revised Total Coliform Rule
Other Violation 0
Oct 2017 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
May 2016 Active
Revised Total Coliform Rule
Reporting
Reporting 0
May 2016 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Mar 2016 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Mar 2016 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Mar 2016 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Sep 2015 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Showing 20 of 676 violations
Environmental Risk

Drought conditions

D3 — extreme drought

Iron County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

7
Weeks at D2+ (current streak)
26.4%
Months in D2+ (last 30y)
7
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

3
Declared disasters
Dec 2023
Most recent
Flood
Most common type

Iron County has experienced 3 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Dec 2023
FLOODING
Flood FEMA #4752
Sep 2005
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA #3223
Aug 2005
FLOODING AND LANDSLIDES
Flood FEMA #1598

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.4 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 11.6 ppb from 1993 (14.0 ppb) to 2025 (2.4 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
4,352
Water Systems
3
Water Source

Where Parowan's water comes from

Groundwater

Parowan's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 4,352 people through 3 water systems.

Infrastructure

Water systems serving Parowan

System Name PWSID Population Source
PAROWAN CITY WATER SYSTEM UTAH11010 3,000 GW
BRIAN HEAD TOWN WATER SYSTEM UTAH11001 1,038 GW
HARMONY FARMS WATER USERS UTAH27079 314 GW
Regional Comparison

How Parowan compares

Full Utah rankings →

Parowan's score of 50/100 is on par with the average of 50/100 among major Utah cities. It outscores 7 of 10 nearby cities.

Parowan (this city)
50
Orem
40.7
Sandy
39.5
Lehi
44.9
Utah avg
50
City Profile

About Parowan, UT

Wikipedia →

Parowan is a city in and the county seat of Iron County, Utah, United States. The population was 2,996 at the 2020 census.

Economic Profile
$47,974
Median Income
$258,553
Median Home Value
$1,002/mo
Median Rent
8.2%
Unemployment
Community
34
Median Age
170
People / sq mi
21.4%
College Educated
62.7%
Homeownership
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Frequently asked questions

Is Parowan, UT tap water safe to drink?

Parowan's water quality earned a grade of D+ (50/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #135 out of 177 cities tested in Utah.

What contaminants are in Parowan's water?

Lead was measured at 2.4 ppb (90th percentile). 676 violations are on record.

How is Parowan's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Parowan?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Parowan's water come from?

Parowan's water is sourced from Groundwater. The city has 3 water systems serving approximately 4,352 residents.

What health violations has Parowan's water system had?

Parowan has 20 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 34 violations remain unresolved.

Is Parowan's groundwater at risk of contamination?

Parowan uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 676 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Parowan's water compare to other cities?

Parowan ranks #135 out of 177 cities in Utah (better than 24% of state cities) and #13072 out of 15744 cities nationally (17th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.