Is Martindale, TX Tap Water Safe to Drink?
Graded C+, with 28 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
66.2/100
waterverge.com Martindale, TX — Water Quality Report
Martindale's drinking water received a grade of C+ (66.2 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 3,102 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 111 violations on record, including 7 health-based violations. 28 remain unresolved.
What to know about Martindale's water
Martindale ranks #637 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.
As a small community water system, Martindale may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 9 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Martindale, TX water safe to drink?
Martindale's drinking water has significant quality concerns based on EPA testing data. With a grade of C+ (66.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 3,102 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Martindale
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Martindale's water quality assessment. Grade: C+ (66.2/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Chlorine, Consumer Confidence Rule.
Contaminants: Revised Total Coliform Rule, Public Notice.
Federal disaster declaration (FEMA DR-4781). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4332). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Martindale's water supply.
Well within EPA limits.
Violation history
Martindale's water system has 111 total violations on record, including 7 health-based violations. 28 remain unresolved. 9 violations were issued in the last 5 years.
Flood & environmental risk
Caldwell County has experienced 4 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 Marcos Rv At San Marcos, Blanco Rv Nr Kyle, Blanco Rv At San Marcos, San Marcos Rv Nr Martindale.
Where does Martindale's water come from?
Martindale's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 3,102 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include San Marcos Rv At San Marcos (river), Blanco Rv Nr Kyle (river), Blanco Rv At San Marcos (river), San Marcos Rv Nr Martindale (river).
What Martindale residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Martindale'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.
Martindale'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
Top industrial polluters within 10 miles of Martindale
Industrial polluters nearby
Reported releases to surface water by facilities near Martindale, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
COLLINS AEROSPACE SAN MARCOS SAN MARCOS, TX78666 | — | — | 6.7 mi |
CMC STEEL FABRICATORS INC. SAN MARCOS, TX78666 | — | — | 7.1 mi |
PAVESTONE - SAN MARCOS TX PLANT SAN MARCOS, TX78666 | — | — | 6.7 mi |
TXI-SAN MARCOS READY MIX SAN MARCOS, TX78666 | — | — | 6.0 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D3 — extreme droughtCaldwell County is currently in D3 (extreme 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
Caldwell County has experienced 4 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Martindale compares by contaminant
Explore where Martindale ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Martindale's water comes from
Martindale'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 3,102 people through 2 water systems.
Water bodies near Martindale
Martindale is located near 4 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Martindale
| System Name | PWSID | Population | Source |
|---|---|---|---|
| MARTINDALE WSC | TX0280013 | 3,045 | SWP |
| BLUE AGAVE MOBILE HOME PARK | TX1050105 | 57 | GW |
How Martindale compares
Full Texas rankings →Martindale's score of 66.2/100 is above the average of 46/100 among major Texas cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Texas rankings →About Martindale, TX
Learn more about your water
Guides and resources related to Martindale's water quality findings.
Explore water quality across Caldwell
Frequently asked questions
Is Martindale, TX tap water safe to drink?
Martindale's water quality earned a grade of C+ (66.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #637 out of 1067 cities tested in Texas.
What contaminants are in Martindale's water?
Lead was measured at 0.0 ppb (90th percentile). 111 violations are on record.
How is Martindale'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 Martindale?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Martindale's water come from?
Martindale's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 3,102 residents.
What health violations has Martindale's water system had?
Martindale has 7 health-based violations on record. The most recent violation was recorded in November 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 28 violations remain unresolved.
How does Martindale's water compare to other cities?
Martindale ranks #637 out of 1067 cities in Texas (better than 40% of state cities) and #11410 out of 15744 cities nationally (28th percentile). The grade of C+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.