WaterVerge

Is Palm Valley, TX Tap Water Safe to Drink?

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

1K residents served 1 water system PWSID: TX0310027
Overall Score
87.8 / 100
Violations
5 active
Last Updated
May 2026
Source
Purchased surface water
#105 of 1067 in Texas Top 24% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
87.8/100
waterverge.com
A- 87.8/100

Palm Valley, TX — Water Quality Report

Palm Valley's drinking water received a grade of A- (87.8 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,310 residents using purchased surface water.

Lead levels were measured at 1.1 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 12 violations on record, including 4 health-based violations. 5 remain unresolved.

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

What to know about Palm Valley's water

Palm Valley ranks #105 out of 1067 cities in Texas for water quality, placing it one of the best 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.

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

Quality Breakdown

Water quality score

See methodology →
87.8 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.8/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.1 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Palm Valley, TX water safe to drink?

Concerns Identified

Palm Valley's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (87.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,310 residents using surface water (rivers, lakes, or reservoirs).

5
Active Violations
1.1 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Palm Valley

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Palm Valley's water quality assessment. Grade: A- (87.8/100).

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4871). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE BERYL

Federal disaster declaration (FEMA DR-4798). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Key contaminant findings

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

Lead Within Limits
Detected: 1.1 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Palm Valley's water system has 12 total violations on record, including 4 health-based violations. 5 remain unresolved.

MROtherMCL
Most recent violations:
Dec 2014 Lead and Copper Rule Open
Feb 2009 Public Notice Open
Dec 2008 Public Notice Open
Oct 2008 Public Notice Open
Oct 2008 Coliform (TCR) Resolved

Flood & environmental risk

Cameron County has experienced 10 federally declared disasters since 2008. 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 Rio Grande Nr Mercedes.

SEVERE STORMS AND FLOODING
Flood FEMA DR-4871
HURRICANE BERYL
Hurricane FEMA DR-4798
TROPICAL STORMS MARCO AND LAURA
Hurricane FEMA DR-3540

Where does Palm Valley's water come from?

Palm Valley's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,310 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Rio Grande Nr Mercedes (river).

What Palm Valley residents can do

Install a water filter

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

Palm Valley'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
1.1 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
Compliance Record

Violation summary

12
Total violations
4
Health-based
5
Active / unresolved
Dec 2014
Most recent violation
Compliance Record

Violations & advisories

12 Total
5 Active
4 Health-based
7 Resolved
Violations by category
Total Coliform Rule
7
Public Notice Rule and Revised PN Rule
4
Lead and Copper Rule
1
Dec 2014 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Feb 2009 Active
Public Notice
Other Violation 0
Dec 2008 Active
Public Notice
Other Violation 0
Oct 2008 Active
Public Notice
Other Violation 0
Apr 2005 Active
Public Notice
Other Violation 0
Oct 2008 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2008
Sep 2008 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 2008
Sep 2008 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2008
Sep 2008 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 2008
Feb 2005 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Feb 2005
Feb 2005 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 2005
Dec 2004 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 2004
Industrial pollution

Top industrial polluters within 10 miles of Palm Valley

Industrial polluters nearby

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

FacilityTop chemicalTo surface water (lbs/yr)Distance
EMERSON AUTOMATION SOLUTIONS
Fabricated Metals · EMERSON ELECTRIC CO
HARLINGEN, TX78550
7.5 mi
ASPHALT PRODUCTS INC.
Petroleum · NA
HARLINGEN, TX78550
7.6 mi
PENN ALUMINUM
Primary Metals · PENN ALUMINUM INTERNATIONAL
HARLINGEN, TX78550
7.2 mi
TITAN FUEL TERMINALS HARLINGEN LLC
Petroleum Bulk Terminals · TITAN FUEL TERMINALS HARLINGEN LLC
HARLINGEN, TX78550
9.6 mi
TITAN FUEL TERMINALS HARLINGEN LLC
Petroleum Bulk Terminals · TITAN FUEL TERMINALS HARLINGEN LLC
HARLINGEN, TX78550
9.5 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D2 — severe drought

Cameron County is currently in D2 (severe 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.

13
Weeks at D2+ (current streak)
15.1%
Months in D2+ (last 30y)
13
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

10
Declared disasters
May 2025
Most recent
Hurricane
Most common type

Cameron County has experienced 10 federally declared disasters since 2008. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

May 2025
SEVERE STORMS AND FLOODING
Flood FEMA #4871
Jul 2024
HURRICANE BERYL
Hurricane FEMA #4798
Aug 2020
TROPICAL STORMS MARCO AND LAURA
Hurricane FEMA #3540
Jul 2020
HURRICANE HANNA
Hurricane FEMA #3530
Jul 2019
SEVERE STORMS AND FLOODING
Flood FEMA #4454
Jul 2018
SEVERE STORMS AND FLOODING
Flood FEMA #4377

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.1 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 2.5 ppb from 1993 (3.6 ppb) to 2023 (1.1 ppb).
Contaminant Rankings

See how Palm Valley compares by contaminant

Explore where Palm Valley ranks among all Texas cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
1,310
Water Systems
1
Water Source

Where Palm Valley's water comes from

Purchased Surface Water

Palm Valley'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 1,310 people through 1 water system.

Local Hydrology

Water bodies near Palm Valley

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

Rio Grande Nr Mercedes
river
Infrastructure

Water systems serving Palm Valley

System Name PWSID Population Source
CITY OF PALM VALLEY TX0310027 1,310 SWP
Regional Comparison

How Palm Valley compares

Full Texas rankings →

Palm Valley's score of 87.8/100 is above the average of 46/100 among major Texas cities. It outscores 10 of 10 nearby cities.

Palm Valley (this city)
87.8
Houston
27.8
Austin
31.2
Dallas
36.2
Fort Worth
34.5
Texas avg
46
City Profile

About Palm Valley, TX

Economic Profile
$69,773
Median Income
$267,000
Median Home Value
$1,123/mo
Median Rent
4.2%
Unemployment
Community
45
Median Age
1,212
People / sq mi
38.6%
College Educated
79.2%
Homeownership
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Frequently asked questions

Is Palm Valley, TX tap water safe to drink?

Palm Valley's water quality earned a grade of A- (87.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #105 out of 1067 cities tested in Texas.

What contaminants are in Palm Valley's water?

Lead was measured at 1.1 ppb (90th percentile). 12 violations are on record.

How is Palm Valley'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 Palm Valley?

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

Where does Palm Valley's water come from?

Palm Valley's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,310 residents.

What health violations has Palm Valley's water system had?

Palm Valley has 4 health-based violations on record. The most recent violation was recorded in December 2014. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.

How does Palm Valley's water compare to other cities?

Palm Valley ranks #105 out of 1067 cities in Texas (better than 90% of state cities) and #3831 out of 15744 cities nationally (76th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Palm Valley's small water system affect quality?

Palm Valley's system serves approximately 1,310 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 12 violations on record.