Is Zavalla, TX Tap Water Safe to Drink?
Graded F — but Lead and Copper were detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
27.5/100
waterverge.com Zavalla, TX — Water Quality Report
Zavalla's drinking water received a grade of F (27.5 out of 100), indicating failing water quality. The city's 4 water systems serve approximately 1,244 residents using ground water under influence.
Lead levels were measured at 29.4 ppb (90th percentile), which exceeds the EPA action level of 15 ppb. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 290 violations on record, including 83 health-based violations. 114 remain unresolved.
What to know about Zavalla's water
Zavalla ranks #1066 out of 1067 cities in Texas for water quality, placing it among the lowest-rated in the state.
Zavalla 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.
Lead levels exceed the EPA action level of 15 ppb, which typically indicates aging lead service lines or lead solder in the distribution system. An NSF 53-certified filter is strongly recommended for drinking and cooking water.
As a small community water system, Zavalla may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 113 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Zavalla, TX water safe to drink?
Zavalla's drinking water has significant quality concerns based on EPA testing data. With a grade of F (27.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 4 water systems serve approximately 1,244 residents using groundwater (wells).
Recent water quality updates for Zavalla
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Zavalla's water quality assessment. Grade: F (27.5/100).
Contaminants: TTHM, Total Haloacetic Acids (HAA5).
Contaminants: Interim Enhanced Surface Water Treatment Rule.
1 health-based. Contaminants: Lead and Copper Rule.
Federal disaster declaration (FEMA DR-4798). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3540). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Zavalla's water supply.
Exceeds EPA action level. Lead service line replacement and point-of-use filtration recommended.
Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.
Violation history
Zavalla's water system has 290 total violations on record, including 83 health-based violations. 114 remain unresolved. 113 violations were issued in the last 5 years.
Flood & environmental risk
Angelina County has experienced 7 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 Neches Rv Nr Rockland.
Where does Zavalla's water come from?
Zavalla's drinking water comes from groundwater (wells), supplied by 4 water systems serving approximately 1,244 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Neches Rv Nr Rockland (river).
What Zavalla residents can do
Recommended: NSF 53-certified pitcher or under-sink filter. This addresses the specific contaminants found in Zavalla's water.
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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Zavalla'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.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Drought conditions
D2 — severe droughtAngelina 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.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Angelina County has experienced 7 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Zavalla's water supply, we recommend the following filter types.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 29.4 | 15 | ppb | Inorganic | Over Limit |
| Copper (90th percentile) CopperInorganic A metal that enters drinking water mainly through corrosion of copper plumbing. Small amounts are essential for health, but excess levels are harmful. Health EffectsGastrointestinal distress (nausea, vomiting, diarrhea) at short-term high levels; liver and kidney damage from long-term exposure. EPA Limit1.3 mg/L action level Common SourcesCorrosion of copper household plumbing, erosion of natural deposits. | 1.50 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level (90th percentile)
Latest reading: 1.500 mg/L (2024)
EPA action level: 1.3 mg/L
See how Zavalla compares by contaminant
Explore where Zavalla ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Zavalla's water comes from
Zavalla'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 1,244 people through 4 water systems.
Water bodies near Zavalla
Zavalla is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Zavalla
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CITY OF ZAVALLA | TX0030030 | 880 | GU |
| TX AIRSTREAM HARBOR WATER | TX0030053 | 236 | GW |
| SUN N FUN WATER SUPPLY CORPORATION | TX0030100 | 65 | GWP |
| RAYLAKE WSC | TX0030010 | 63 | GW |
How Zavalla compares
Full Texas rankings →Zavalla's score of 27.5/100 is below the average of 46/100 among major Texas cities. 10 of 10 nearby cities score higher.
Nearby cities
View Texas rankings →About Zavalla, TX
Wikipedia →Zavalla is a city in Angelina County, Texas, United States. The population was 603 at the 2020 census. The town is named for Lorenzo de Zavala, a Mexican rancher, politician, and signer of the Texas Declaration of Independence who served as the first Vice-President of the Republic of Texas. Its city limits stretch several miles south of town into a heavily wooded area.
Learn more about your water
Guides and resources related to Zavalla's water quality findings.
Explore water quality across Angelina
Frequently asked questions
Is Zavalla, TX tap water safe to drink?
Zavalla's water quality earned a grade of F (27.5/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #1066 out of 1067 cities tested in Texas.
What contaminants are in Zavalla's water?
Lead was measured at 29.4 ppb (90th percentile). 290 violations are on record.
How is Zavalla'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 Zavalla?
Yes — lead levels exceed the EPA action level of 15 ppb. We recommend an NSF 53-certified filter or reverse osmosis system. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Zavalla's water come from?
Zavalla's water is sourced from Ground water under influence. The city has 4 water systems serving approximately 1,244 residents.
What health violations has Zavalla's water system had?
Zavalla has 83 health-based violations on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 114 violations remain unresolved.
Is Zavalla's groundwater at risk of contamination?
Zavalla 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 290 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 Zavalla's water compare to other cities?
Zavalla ranks #1066 out of 1067 cities in Texas (better than 0% of state cities) and #15729 out of 15744 cities nationally (0th percentile). The grade of F reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.