WaterVerge

Is Cambell Ranch, NV Tap Water Safe to Drink?

Graded D+, with 27 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

512 residents served 1 water system PWSID: 093200171
Overall Score
50 / 100
Violations
27 active
Last Updated
May 2026
Source
Groundwater
#56 of 66 in Nevada Top 84% nationally
Native American
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
D+GRADE
Water Quality Grade
50/100
waterverge.com
D+ 50/100

Cambell Ranch, NV — Water Quality Report

Cambell Ranch's drinking water received a grade of D+ (50 out of 100), indicating poor water quality. The city's 1 water system serves approximately 512 residents using groundwater.

Lead levels were measured at 2.0 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 204 violations on record, including 30 health-based violations. 27 remain unresolved.

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

What to know about Cambell Ranch's water

Cambell Ranch ranks #56 out of 66 cities in Nevada for water quality, placing it among the lowest-rated in the state.

Cambell Ranch 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, Cambell Ranch may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 30 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 2.0 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 Cambell Ranch, NV water safe to drink?

Concerns Identified

Cambell Ranch'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 1 water system serves approximately 512 residents using groundwater (wells).

27
Active Violations
2.0 ppb
Lead (90th %ile)
4 events
Disaster History

Recent water quality updates for Cambell Ranch

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

Update
Water quality data updated

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

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Arsenic.

Violation
2 drinking water violations recorded

1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
2 drinking water violations recorded

1 health-based. Contaminants: Arsenic, Public Notice.

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 Cambell Ranch's water supply.

Lead Within Limits
Detected: 2.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Cambell Ranch's water system has 204 total violations on record, including 30 health-based violations. 27 remain unresolved. 30 violations were issued in the last 5 years.

MCLTTRPTOtherMRMON
Most recent violations:
Jan 2025 Arsenic Resolved
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Jul 2024 Arsenic Resolved
Jul 2024 Public Notice Open

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 E Walker Rv Nr Mason, Walker, Walker Rvr.

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 Cambell Ranch's water come from?

Cambell Ranch's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 512 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include E Walker Rv Nr Mason (river), Walker (river), Walker Rvr (river).

What Cambell Ranch residents can do

Install a water filter

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

Cambell Ranch'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
2.0 ppb
EPA Action Level: 15 ppb · 13% of limit
Safe Level
Compliance Record

Violation summary

204
Total violations
30
Health-based
27
Active / unresolved
Jan 2025
Most recent violation
Compliance Record

Violations & advisories

204 Total
27 Active
30 Health-based
177 Resolved
Violations by category
Arsenic Rule
38
Volatile Organic Chemicals
37
Synthetic Organic Chemicals
32
Total Coliform Rule
32
Public Notice Rule and Revised PN Rule
11
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Jul 2024 Active
Public Notice
Other Violation 0
May 2023 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
May 2023 Active
Public Notice
Other Violation 0
May 2023 Active
Public Notice
Other Violation 0
Apr 2023 Active
Public Notice
Other Violation 0
Mar 2023 Active
Public Notice
Other Violation 0
Feb 2023 Active
Public Notice
Other Violation 0
Sep 2022 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Sep 2022 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Sep 2022 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Sep 2022 Active
Public Notice
Other Violation 0
Sep 2022 Active
Public Notice
Other Violation 0
Sep 2022 Active
Public Notice
Other Violation 0
Oct 2020 Active
Public Notice
Other Violation 0
Jul 2020 Active
Public Notice
Other Violation 0
Jul 2010 Active
Consumer Confidence Rule
Other Violation 0
Jul 2008 Active
Consumer Confidence Rule
Other Violation 0
Jan 2008 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Showing 20 of 204 violations
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) 2.0 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 increased by 1.0 ppb from 1999 (1.0 ppb) to 2025 (2.0 ppb).
Contaminant Rankings

See how Cambell Ranch compares by contaminant

Explore where Cambell Ranch ranks among all Nevada cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Native American
Population Served
512
Water Systems
1
Water Source

Where Cambell Ranch's water comes from

Groundwater

Cambell Ranch'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 native american ownership and serves approximately 512 people through 1 water system.

Local Hydrology

Water bodies near Cambell Ranch

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

E Walker Rv Nr Mason
river
Walker
river
Walker Rvr
river
Infrastructure

Water systems serving Cambell Ranch

System Name PWSID Population Source
Yerington (Campbell Ranch) 093200171 512 GW
Regional Comparison

How Cambell Ranch compares

Full Nevada rankings →

Cambell Ranch's score of 50/100 is below the average of 57/100 among major Nevada cities. It outscores 5 of 10 nearby cities.

Cambell Ranch (this city)
50
Las Vegas
39.8
Reno
29.3
Reno
72.2
Henderson
51.8
Nevada avg
57
City Profile

About Cambell Ranch, NV

Wikipedia →

Yerington is a city in Lyon County, Nevada, United States. The population was 3,121 at the 2020 census. It is the current county seat of Lyon County, with the first county seat having been established at Dayton on November 29, 1861. It is named after Henry M. Yerington, superintendent of the Virginia and Truckee Railroad from 1868 to 1910.

Economic Profile
$41,600
Median Income
$188,442
Median Home Value
$736/mo
Median Rent
5.1%
Unemployment
Community
55.3
Median Age
41
People / sq mi
16.7%
College Educated
71.5%
Homeownership
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Frequently asked questions

Is Cambell Ranch, NV tap water safe to drink?

Cambell Ranch's water quality earned a grade of D+ (50/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #56 out of 66 cities tested in Nevada.

What contaminants are in Cambell Ranch's water?

Lead was measured at 2.0 ppb (90th percentile). 204 violations are on record.

How is Cambell Ranch'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 Cambell Ranch?

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

Where does Cambell Ranch's water come from?

Cambell Ranch's water is sourced from Groundwater. The city has 1 water system serving approximately 512 residents.

What health violations has Cambell Ranch's water system had?

Cambell Ranch has 30 health-based violations on record. The most recent violation was recorded in January 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 27 violations remain unresolved.

Is Cambell Ranch's groundwater at risk of contamination?

Cambell Ranch 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 204 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 Cambell Ranch's water compare to other cities?

Cambell Ranch ranks #56 out of 66 cities in Nevada (better than 15% of state cities) and #13202 out of 15744 cities nationally (16th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Cambell Ranch's small water system affect quality?

Cambell Ranch's system serves approximately 512 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 204 violations on record.