Is Falls City, TX Tap Water Safe to Drink?
Graded B, with 12 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
77.5/100
waterverge.com Falls City, TX — Water Quality Report
Falls City's drinking water received a grade of B (77.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 514 residents using groundwater.
Lead levels were measured at 1.0 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 22 violations on record, including 1 health-based violation. 12 remain unresolved.
What to know about Falls City's water
Falls City ranks #430 out of 1067 cities in Texas for water quality, placing it mid-range in the state.
Falls City 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, Falls City may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Falls City, TX water safe to drink?
Falls City's drinking water has significant quality concerns based on EPA testing data. With a grade of B (77.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 514 residents using groundwater (wells).
Recent water quality updates for Falls City
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Falls City's water quality assessment. Grade: B (77.5/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Lead and Copper Rule.
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
Federal disaster declaration (FEMA DR-4332). Hurricane event — may have impacted local water infrastructure.
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 Falls City's water supply.
Well within EPA limits.
Violation history
Falls City's water system has 22 total violations on record, including 1 health-based violation. 12 remain unresolved. 6 violations were issued in the last 5 years.
Flood & environmental risk
Karnes 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 San Antonio Rv Nr Falls City, Cibolo Ck Nr Falls City.
Where does Falls City's water come from?
Falls City's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 514 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include San Antonio Rv Nr Falls City (river), Cibolo Ck Nr Falls City (river).
What Falls City residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Falls City'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.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Falls City
Industrial polluters nearby
Reported releases to surface water by facilities near Falls City, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
EOG RESOURCES INC LYSSY HUB HOBSON, TX78117 | — | — | 4.6 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D2 — severe droughtKarnes 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
Karnes 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.
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. | 1.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Falls City compares by contaminant
Explore where Falls City ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Falls City's water comes from
Falls City'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 514 people through 1 water system.
Water bodies near Falls City
Falls City is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Falls City
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CITY OF FALLS CITY | TX1280004 | 514 | GW |
How Falls City compares
Full Texas rankings →Falls City's score of 77.5/100 is above the average of 46/100 among major Texas cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Texas rankings →About Falls City, TX
Wikipedia →Falls City is a city in Karnes County, Texas, United States. The population was 514 at the 2020 census. Falls City is near the location of a uranium tailings disposal cell, completed in 1994 under the terms of the 1978 Uranium Mill Tailings Radiation Control Act. The early settlers, predominantly Polish Catholics, founded the Holy Trinity Catholic Church in 1902.
Learn more about your water
Guides and resources related to Falls City's water quality findings.
Explore water quality across Karnes
Frequently asked questions
Is Falls City, TX tap water safe to drink?
Falls City's water quality earned a grade of B (77.5/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #430 out of 1067 cities tested in Texas.
What contaminants are in Falls City's water?
Lead was measured at 1.0 ppb (90th percentile). 22 violations are on record.
How is Falls City'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 Falls City?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Falls City's water come from?
Falls City's water is sourced from Groundwater. The city has 1 water system serving approximately 514 residents.
What health violations has Falls City's water system had?
Falls City has 1 health-based violation on record. The most recent violation was recorded in June 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 12 violations remain unresolved.
Is Falls City's groundwater at risk of contamination?
Falls City 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 22 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 Falls City's water compare to other cities?
Falls City ranks #430 out of 1067 cities in Texas (better than 60% of state cities) and #8993 out of 15744 cities nationally (43th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Falls City's small water system affect quality?
Falls City's system serves approximately 514 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 22 violations on record.