WaterVerge

Is Wellington, NV Tap Water Safe to Drink?

Graded B+, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 1 water system PWSID: NV0000239
Overall Score
82.7 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#33 of 66 in Nevada Top 44% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
82.7/100
waterverge.com
B+ 82.7/100

Wellington, NV — Water Quality Report

Wellington's drinking water received a grade of B+ (82.7 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,545 residents using groundwater.

Lead levels were measured at 0.0 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 103 violations on record, including 6 health-based violations. 5 remain unresolved.

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

What to know about Wellington's water

Wellington ranks #33 out of 66 cities in Nevada for water quality, placing it mid-range in the state.

Wellington 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.

As a small community water system, Wellington may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
82.7 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
30.7/45
C
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Wellington, NV water safe to drink?

Concerns Identified

Wellington's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (82.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,545 residents using groundwater (wells).

5
Active Violations
0.0 ppb
Lead (90th %ile)
4 events
Disaster History

Recent water quality updates for Wellington

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Wellington's water quality assessment. Grade: B+ (82.7/100).

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
2 drinking water violations recorded

1 health-based. Contaminants: Groundwater Rule, Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Chlorine.

Disaster
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4708). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3243). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Wellington's water system has 103 total violations on record, including 6 health-based violations. 5 remain unresolved. 6 violations were issued in the last 5 years.

MONTTMRMCL
Most recent violations:
Mar 2024 Revised Total Coliform Rule Resolved
Feb 2024 Groundwater Rule Open
Feb 2024 Revised Total Coliform Rule Resolved
Dec 2023 Chlorine Resolved
Nov 2023 Chlorine Resolved

Flood & environmental risk

Lyon County has experienced 4 federally declared disasters since 1965. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Topaz Canal, Topaz Lake Nr Topaz, W Walker.

SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4708
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3243
SEVERE STORMS & FLOODING
Flood FEMA DR-759

Where does Wellington's water come from?

Wellington's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,545 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Topaz Canal (stream), Topaz Lake Nr Topaz (lake), W Walker (river).

What Wellington residents can do

Install a water filter

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

Wellington'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
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

103
Total violations
6
Health-based
5
Active / unresolved
Mar 2024
Most recent violation
Compliance Record

Violations & advisories

103 Total
5 Active
6 Health-based
98 Resolved
2 SNC
Violations by category
Volatile Organic Chemicals
61
Radionuclides and Revised Rad Rule
12
Total Coliform Rule
8
Stage 1 Disinfectants and Disinfection Byproducts Rule
6
Nitrate Rule
5
Feb 2024 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Oct 2004 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 1994 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 1994 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Mar 2024 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Mar 2024
Feb 2024 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Feb 2024
Dec 2023 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2023
Nov 2023 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2023
Oct 2023 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2023
Jan 2019 Resolved
Nitrate
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jul 2017 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2017
Jan 2017 Resolved
Arsenic
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Nitrite
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Oct 2016 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Sep 2017
Oct 2016 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Sep 2017
Mar 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Mar 2014
Oct 2010 Resolved
Trichloroethylene
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2007 Resolved
Combined Radium (-226 and -228)
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2007
Jan 2007 Resolved
Radium-226
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2007
Showing 20 of 103 violations
Environmental Risk

Drought conditions

D1 — moderate drought

Douglas County is currently in D1 (moderate 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.

26.7%
Months in D2+ (last 30y)

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

Environmental Risk

Flood & disaster history

4
Declared disasters
Apr 2023
Most recent
Flood
Most common type

Lyon County has experienced 4 federally declared disasters since 1965. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Apr 2023
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4708
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3243
Feb 1986
SEVERE STORMS & FLOODING
Flood FEMA #759
Jan 1965
SEVERE STORMS, HEAVY RAINS & FLOODING
Flood FEMA #187

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 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 6.0 ppb from 1996 (6.0 ppb) to 2025 (0.0 ppb).
Contaminant Rankings

See how Wellington compares by contaminant

Explore where Wellington ranks among all Nevada cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,545
Water Systems
1
Water Source

Where Wellington's water comes from

Groundwater

Wellington'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 1,545 people through 1 water system.

Local Hydrology

Water bodies near Wellington

Wellington is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Topaz Canal
stream
Topaz Lake Nr Topaz
lake
W Walker
river
Infrastructure

Water systems serving Wellington

System Name PWSID Population Source
TOPAZ RANCH ESTATES GID AND WATER CO NV0000239 1,545 GW
Regional Comparison

How Wellington compares

Full Nevada rankings →

Wellington's score of 82.7/100 is above the average of 57/100 among major Nevada cities. It outscores 9 of 10 nearby cities.

Wellington (this city)
82.7
Las Vegas
39.8
Reno
29.3
Reno
72.2
Henderson
51.8
Nevada avg
57
City Profile

About Wellington, NV

Wikipedia →

Wellington is an unincorporated town in southwestern Lyon County, Nevada, United States. It lies along State Route 208, southwest of the city of Yerington, the county seat of Lyon County. Wellington has a post office with the ZIP code 89444,

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Frequently asked questions

Is Wellington, NV tap water safe to drink?

Wellington's water quality earned a grade of B+ (82.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #33 out of 66 cities tested in Nevada.

What contaminants are in Wellington's water?

Lead was measured at 0.0 ppb (90th percentile). 103 violations are on record.

How is Wellington'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 Wellington?

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

Where does Wellington's water come from?

Wellington's water is sourced from Groundwater. The city has 1 water system serving approximately 1,545 residents.

What health violations has Wellington's water system had?

Wellington has 6 health-based violations on record. The most recent violation was recorded in March 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.

Is Wellington's groundwater at risk of contamination?

Wellington 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 103 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 Wellington's water compare to other cities?

Wellington ranks #33 out of 66 cities in Nevada (better than 50% of state cities) and #6827 out of 15744 cities nationally (57th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Wellington's small water system affect quality?

Wellington's system serves approximately 1,545 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 103 violations on record.