Is Danbury, TX Tap Water Safe to Drink?
Graded B, with 29 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
79.4/100
waterverge.com Danbury, TX — Water Quality Report
Danbury's drinking water received a grade of B (79.4 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,673 residents using groundwater.
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 52 violations on record, including 11 health-based violations. 29 remain unresolved.
What to know about Danbury's water
Danbury ranks #383 out of 1067 cities in Texas for water quality, placing it mid-range in the state.
Danbury 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, Danbury may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Danbury, TX water safe to drink?
Danbury's drinking water has significant quality concerns based on EPA testing data. With a grade of B (79.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,673 residents using groundwater (wells).
Recent water quality updates for Danbury
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Danbury's water quality assessment. Grade: B (79.4/100).
Federal disaster declaration (FEMA DR-4798). Hurricane event — may have impacted local water infrastructure.
Contaminants: Consumer Confidence Rule.
Contaminants: Revised Total Coliform Rule.
Contaminants: Revised Total Coliform Rule.
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 Danbury's water supply.
Well within EPA limits.
Violation history
Danbury's water system has 52 total violations on record, including 11 health-based violations. 29 remain unresolved. 3 violations were issued in the last 5 years.
Flood & environmental risk
Brazoria County has experienced 10 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 Chocolate Bayou Nr Alvin, Austin Bayou At Sh 35 Nr Liverpool, Oyster Ck At Cr 290 Nr Angleton.
Where does Danbury's water come from?
Danbury's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,673 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Chocolate Bayou Nr Alvin (river), Austin Bayou At Sh 35 Nr Liverpool (river), Oyster Ck At Cr 290 Nr Angleton (river).
What Danbury residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Danbury'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.
Danbury'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 Danbury
Industrial polluters nearby
Reported releases to surface water by facilities near Danbury, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
3M ANGLETON ANGLETON, TX77515 | — | — | 5.7 mi |
ALLIED PETROCHEMICAL PLANT ALVIN, TX77511 | — | — | 8.4 mi |
ALLEGHENY PETROLEUM PRODUCTS CO. ANGLETON, TX77515 | — | — | 6.8 mi |
INEOS OLIGOMERS CHOCOLATE BAYOU ALVIN, TX77511 | — | — | 9.6 mi |
POLYMER CHEMISTRY CHOCOLATE BAYOU LLC ALVIN, TX77511 | — | — | 7.8 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D2 — severe droughtBrazoria 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
Brazoria County has experienced 10 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 Danbury compares by contaminant
Explore where Danbury ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Danbury's water comes from
Danbury'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 1,673 people through 1 water system.
Water bodies near Danbury
Danbury is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Danbury
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CITY OF DANBURY | TX0200011 | 1,673 | GW |
How Danbury compares
Full Texas rankings →Danbury's score of 79.4/100 is above the average of 46/100 among major Texas cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Texas rankings →About Danbury, TX
Wikipedia →Danbury is a city in Brazoria County, Texas, United States. It is located northeast of Angleton along the Union Pacific Railroad and County Road 171. The city boasts its own school district. Its population was 1,671 at the 2020 census.
Learn more about your water
Guides and resources related to Danbury's water quality findings.
Explore water quality across Brazoria
Frequently asked questions
Is Danbury, TX tap water safe to drink?
Danbury's water quality earned a grade of B (79.4/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #383 out of 1067 cities tested in Texas.
What contaminants are in Danbury's water?
Lead was measured at 0.0 ppb (90th percentile). 52 violations are on record.
How is Danbury'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 Danbury?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Danbury's water come from?
Danbury's water is sourced from Groundwater. The city has 1 water system serving approximately 1,673 residents.
What health violations has Danbury's water system had?
Danbury has 11 health-based violations on record. The most recent violation was recorded in July 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 29 violations remain unresolved.
Is Danbury's groundwater at risk of contamination?
Danbury 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 52 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 Danbury's water compare to other cities?
Danbury ranks #383 out of 1067 cities in Texas (better than 64% of state cities) and #8272 out of 15744 cities nationally (48th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Danbury's small water system affect quality?
Danbury's system serves approximately 1,673 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 52 violations on record.