Is Hamilton, TX Tap Water Safe to Drink?
Graded C+, with 9 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
68.9/100
waterverge.com Hamilton, TX — Water Quality Report
Hamilton's drinking water received a grade of C+ (68.9 out of 100), indicating fair water quality. The city's 1 water system serves approximately 2,871 residents using purchased surface water.
Lead levels were measured at 2.0 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 19 violations on record, including 8 health-based violations. 9 remain unresolved.
What to know about Hamilton's water
Hamilton ranks #596 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, Hamilton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 10 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Hamilton, TX water safe to drink?
Hamilton's drinking water has significant quality concerns based on EPA testing data. With a grade of C+ (68.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,871 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Hamilton
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Hamilton's water quality assessment. Grade: C+ (68.9/100).
Federal disaster declaration (FEMA DR-4879). Flood event — may have impacted local water infrastructure.
Contaminants: Consumer Confidence Rule.
Contaminants: Lead and Copper Rule, Public Notice.
1 health-based. Contaminants: TTHM.
Federal disaster declaration (FEMA DR-4781). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Hamilton's water supply.
Well within EPA limits.
Violation history
Hamilton's water system has 19 total violations on record, including 8 health-based violations. 9 remain unresolved. 10 violations were issued in the last 5 years.
Flood & environmental risk
Hamilton County has experienced 3 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 Leon Rv Nr Hamilton.
Where does Hamilton's water come from?
Hamilton's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 2,871 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Leon Rv Nr Hamilton (river).
What Hamilton residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Hamilton'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.
Hamilton'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
Flood & disaster history
Hamilton County has experienced 3 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. | 2.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Hamilton compares by contaminant
Explore where Hamilton ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Hamilton's water comes from
Hamilton'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 2,871 people through 1 water system.
Water bodies near Hamilton
Hamilton is located near 1 notable water body. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Hamilton
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CITY OF HAMILTON | TX0970001 | 2,871 | SWP |
How Hamilton compares
Full Texas rankings →Hamilton's score of 68.9/100 is above the average of 46/100 among major Texas cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Texas rankings →About Hamilton, TX
Wikipedia →Hamilton is a city in and the county seat of Hamilton County, Texas, United States, located in the state's central region. Its population was 2,895 at the 2020 census.
Learn more about your water
Guides and resources related to Hamilton's water quality findings.
Explore water quality across Hamilton
Frequently asked questions
Is Hamilton, TX tap water safe to drink?
Hamilton's water quality earned a grade of C+ (68.9/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #596 out of 1067 cities tested in Texas.
What contaminants are in Hamilton's water?
Lead was measured at 2.0 ppb (90th percentile). 19 violations are on record.
How is Hamilton'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 Hamilton?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Hamilton's water come from?
Hamilton's water is sourced from Purchased surface water. The city has 1 water system serving approximately 2,871 residents.
What health violations has Hamilton's water system had?
Hamilton has 8 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.
How does Hamilton's water compare to other cities?
Hamilton ranks #596 out of 1067 cities in Texas (better than 44% of state cities) and #11003 out of 15744 cities nationally (30th percentile). The grade of C+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Hamilton's small water system affect quality?
Hamilton's system serves approximately 2,871 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 19 violations on record.