WaterVerge

Is Nocona, TX Tap Water Safe to Drink?

Graded C, with 17 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

4K residents served 2 water systems PWSID: TX1690002
Overall Score
62.1 / 100
Violations
17 active
Last Updated
May 2026
Source
Surface water
#678 of 1067 in Texas Top 76% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
CGRADE
Water Quality Grade
62.1/100
waterverge.com
C 62.1/100

Nocona, TX — Water Quality Report

Nocona's drinking water received a grade of C (62.1 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 3,770 residents using surface water.

Lead levels were measured at 10.1 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 29 violations on record, including 8 health-based violations. 17 remain unresolved.

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

What to know about Nocona's water

Nocona ranks #678 out of 1067 cities in Texas for water quality, placing it below average in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

Hexavalent chromium (chromium-6) was detected at 0.11 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.

While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.

The system has seen 12 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
62.1 out of 100 Grade C
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
23.6/45
D
Historical violation record including health-based and monitoring violations.
Lead & Copper
13/20
C
Lead at 10.1 ppb (90th percentile).
Contaminants
18.5/20
A
PFAS + legacy contaminant analysis.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Surface water.
Water Safety

Is Nocona, TX water safe to drink?

Concerns Identified

Nocona's drinking water has significant quality concerns based on EPA testing data. With a grade of C (62.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 3,770 residents using surface water (rivers, lakes, or reservoirs).

17
Active Violations
10.1 ppb
Lead (90th %ile)
2 events
Disaster History

Recent water quality updates for Nocona

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Nocona's water quality assessment. Grade: C (62.1/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
2 drinking water violations recorded

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

Disaster
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING

Federal disaster declaration (FEMA DR-4781). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE RITA

Federal disaster declaration (FEMA DR-1606). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Elevated
Detected: 10.1 ppb Limit: 15 ppb (EPA Action Level)

Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.

Violation history

Nocona's water system has 29 total violations on record, including 8 health-based violations. 17 remain unresolved. 12 violations were issued in the last 5 years.

OtherTTRPTMRMONMCL
Most recent violations:
Jul 2025 Consumer Confidence Rule Open
May 2025 Public Notice Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Jul 2024 Consumer Confidence Rule Open

Flood & environmental risk

Montague County has experienced 2 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. Local water sources include Lk Nocona Nr Nocona.

SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING
Flood FEMA DR-4781
HURRICANE RITA
Hurricane FEMA DR-1606

Where does Nocona's water come from?

Nocona's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 3,770 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Lk Nocona Nr Nocona (lake).

What Nocona residents can do

Install a water filter

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

Flush your taps

Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.

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
Near Limit
10.1 ppb
EPA Action Level: 15 ppb · 67% of limit
Near LimitFilter: NSF-53
Chromium-6 (Hexavalent Chromium)
Inorganic
Detected
0.11 µg/L
CA MCL (no federal MCL): 10 µg/L · 1% of limit
DetectedUCMR 3 Data
Strontium
Inorganic
Detected
323.0 µg/L
EPA Health Ref Level: 1,500 µg/L · 22% of limit
DetectedUCMR 3 Data
Vanadium
Inorganic
Detected
0.35 µg/L
EPA Short-term HA: 21 µg/L · 2% of limit
DetectedUCMR 3 Data
Molybdenum
Inorganic
Detected
4.40 µg/L
EPA Lifetime HA: 40 µg/L · 11% of limit
DetectedUCMR 3 Data
Compliance Record

Violation summary

29
Total violations
8
Health-based
17
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

29 Total
17 Active
8 Health-based
12 Resolved
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
10
Lead and Copper Rule
5
Consumer Confidence Rule
4
Public Notice Rule and Revised PN Rule
4
Lead and Copper Rule Revisions
2
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
May 2025 Active
Public Notice
Other Violation 0
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
Consumer Confidence Rule
Other Violation 0
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Feb 2024 Active
Public Notice
Other Violation 0
Oct 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2023 Active
Consumer Confidence Rule
Other Violation 0
Oct 2022 Active
Public Notice
Other Violation 0
Dec 2018 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2016 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Apr 2015 Active
Public Notice
Other Violation 0
Dec 2013 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Jan 2023 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Jan 2023
Apr 2021 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2021
Jan 2015 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2015
Showing 20 of 29 violations
Environmental Risk

Drought conditions

D1 — moderate drought

Montague 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.

14.2%
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

2
Declared disasters
May 2024
Most recent
Flood
Most common type

Montague County has experienced 2 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

May 2024
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING
Flood FEMA #4781
Sep 2005
HURRICANE RITA
Hurricane FEMA #1606

Recommended water filters

Based on contaminants detected in Nocona's water supply, we recommend the following filter types.

🚰
For Lead
Reverse Osmosis or NSF 53-Certified Pitcher
Lead detected at 10.1 ppb
Read our guide →

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 10.1 15 ppb Inorganic Near Limit
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has increased by 2.3 ppb from 1993 (7.8 ppb) to 2025 (10.1 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Surface Water
Operator
Local Government
Population Served
3,770
Water Systems
2
Source breakdown
Surface Water
1
Groundwater
1
Water Source

Where Nocona's water comes from

Surface Water

Nocona's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 3,770 people through 2 water systems.

Local Hydrology

Water bodies near Nocona

Nocona is located near 1 notable water body. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Lk Nocona Nr Nocona
lake
Infrastructure

Water systems serving Nocona

System Name PWSID Population Source
CITY OF NOCONA TX1690002 3,170 SW
NOCONA HILLS WSC TX1690009 600 GW
Regional Comparison

How Nocona compares

Full Texas rankings →

Nocona's score of 62.1/100 is above the average of 46/100 among major Texas cities. It outscores 8 of 10 nearby cities.

Nocona (this city)
62.1
Houston
27.8
Austin
31.2
Dallas
36.2
Fort Worth
34.5
Texas avg
46
City Profile

About Nocona, TX

Economic Profile
$42,104
Median Income
$94,710
Median Home Value
$668/mo
Median Rent
15.7%
Unemployment
Community
32.5
Median Age
415
People / sq mi
14%
College Educated
69%
Homeownership
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Frequently asked questions

Is Nocona, TX tap water safe to drink?

Nocona's water quality earned a grade of C (62.1/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #678 out of 1067 cities tested in Texas.

What contaminants are in Nocona's water?

Lead was measured at 10.1 ppb (90th percentile). 29 violations are on record.

How is Nocona'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 Nocona?

While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.

Where does Nocona's water come from?

Nocona's water is sourced from Surface water. The city has 2 water systems serving approximately 3,770 residents.

What health violations has Nocona's water system had?

Nocona has 8 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 17 violations remain unresolved.

How does Nocona's water compare to other cities?

Nocona ranks #678 out of 1067 cities in Texas (better than 36% of state cities) and #11916 out of 15744 cities nationally (24th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.