WaterVerge

Is Merkel, TX Tap Water Safe to Drink?

Graded C+, with 22 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

7K residents served 3 water systems PWSID: TX2210015
Overall Score
68.2 / 100
Violations
22 active
Last Updated
May 2026
Source
Purchased surface water
#604 of 1067 in Texas Top 71% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
C+GRADE
Water Quality Grade
68.2/100
waterverge.com
C+ 68.2/100

Merkel, TX — Water Quality Report

Merkel's drinking water received a grade of C+ (68.2 out of 100), indicating fair water quality. The city's 3 water systems serve approximately 6,871 residents using purchased surface water.

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 88 violations on record, including 47 health-based violations. 22 remain unresolved.

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

What to know about Merkel's water

Merkel ranks #604 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.

Quality Breakdown

Water quality score

See methodology →
68.2 out of 100 Grade C+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
22.2/45
D
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
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Merkel, TX water safe to drink?

Concerns Identified

Merkel's drinking water has significant quality concerns based on EPA testing data. With a grade of C+ (68.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 6,871 residents using surface water (rivers, lakes, or reservoirs).

22
Active Violations
0.0 ppb
Lead (90th %ile)
1 event
Disaster History

Recent water quality updates for Merkel

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Merkel's water quality assessment. Grade: C+ (68.2/100).

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: TTHM.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

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 Merkel's water supply.

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

Well within EPA limits.

Violation history

Merkel's water system has 88 total violations on record, including 47 health-based violations. 22 remain unresolved. 3 violations were issued in the last 5 years.

MONMROtherMCL
Most recent violations:
Nov 2024 Revised Total Coliform Rule Resolved
Apr 2022 TTHM Open
Jul 2021 Public Notice Open
Jan 2020 Chlorine Resolved
Jan 2020 TTHM Resolved

Flood & environmental risk

Taylor County has experienced 1 federally declared disaster 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.

HURRICANE RITA
Hurricane FEMA DR-1606

Where does Merkel's water come from?

Merkel's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 3 water systems serving approximately 6,871 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.

What Merkel residents can do

Install a water filter

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

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

88
Total violations
47
Health-based
22
Active / unresolved
Nov 2024
Most recent violation
Compliance Record

Violations & advisories

88 Total
22 Active
47 Health-based
66 Resolved
14 SNC
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
25
Stage 2 Disinfectants and Disinfection Byproducts Rule
23
Total Coliform Rule
17
Public Notice Rule and Revised PN Rule
8
Lead and Copper Rule
7
Apr 2022 Active
TTHM
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2021 Active
Public Notice
Other Violation 0
Oct 2018 Active
Public Notice
Other Violation 0
Dec 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Feb 2017 Active
Public Notice
Other Violation 0
Dec 2016 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2016 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2016 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2015 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2012 Active
Public Notice
Other Violation 0
Oct 2010 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2008 Active
Public Notice
Other Violation 0
May 2008 Active
Public Notice
Other Violation 0
Jan 2008 Active
Public Notice
Other Violation 0
Apr 2006 Active
Public Notice
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jul 2003 Active
Consumer Confidence Rule
Other Violation 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Showing 20 of 88 violations
Industrial pollution

Top industrial polluters within 10 miles of Merkel

Industrial polluters nearby

Reported releases to surface water by facilities near Merkel, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
WESTERN MARKETING INC.
Petroleum Bulk Terminals · RELADYNE LLC
TYE, TX79563
9.4 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D1 — moderate drought

Taylor 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)
2
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

1
Declared disasters
Sep 2005
Most recent
Hurricane
Most common type

Taylor County has experienced 1 federally declared disaster since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE RITA
Hurricane FEMA #1606

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 6.4 ppb from 1993 (6.4 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
6,871
Water Systems
3
Water Source

Where Merkel's water comes from

Purchased Surface Water

Merkel'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 6,871 people through 3 water systems.

Infrastructure

Water systems serving Merkel

System Name PWSID Population Source
SUN WSC TX2210015 3,420 SWP
CITY OF MERKEL TX2210002 2,494 SWP
BLAIR WSC TX2210024 957 SWP
Regional Comparison

How Merkel compares

Full Texas rankings →

Merkel's score of 68.2/100 is above the average of 46/100 among major Texas cities. It outscores 8 of 10 nearby cities.

Merkel (this city)
68.2
Houston
27.8
Austin
31.2
Dallas
36.2
Fort Worth
34.5
Texas avg
46
City Profile

About Merkel, TX

Economic Profile
$67,159
Median Income
$108,390
Median Home Value
$988/mo
Median Rent
1.9%
Unemployment
Community
31.7
Median Age
365
People / sq mi
15%
College Educated
73.9%
Homeownership
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Frequently asked questions

Is Merkel, TX tap water safe to drink?

Merkel's water quality earned a grade of C+ (68.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #604 out of 1067 cities tested in Texas.

What contaminants are in Merkel's water?

Lead was measured at 0.0 ppb (90th percentile). 88 violations are on record.

How is Merkel'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 Merkel?

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

Where does Merkel's water come from?

Merkel's water is sourced from Purchased surface water. The city has 3 water systems serving approximately 6,871 residents.

What health violations has Merkel's water system had?

Merkel has 47 health-based violations on record. The most recent violation was recorded in November 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 22 violations remain unresolved.

How does Merkel's water compare to other cities?

Merkel ranks #604 out of 1067 cities in Texas (better than 43% of state cities) and #11112 out of 15744 cities nationally (29th percentile). The grade of C+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.