Tap Water Results

City of Dublin water quality

Dublin, TX · serves 3,388 people (1,711 connections) · Purchased surface water · Local government · EPA ID TX0720001

Data: U.S. EPA · How we read the data · How we check it

Buys water from Upper Leon River Municipal Water District. Treated water bought from another system can carry that system's contaminants.

Summary

PFAS above the 2024 federal limits. Systems have until 2029 to meet the PFAS limits.

Is it an emergency? No: PFAS limits are about years of exposure, not a glass of water, and nothing in EPA's data calls for you to stop drinking the water today. If your utility ever issues a boil-water or do-not-drink notice, follow it.

PFAS
Above limitPFOS above the federal limit in EPA's 2023–2025 testing (PFOS 4.3 ppt vs a limit of 4 ppt, where ppt = parts per trillion).
Lead
Below action level3.53 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period Jan 2024 – now, still in progress (results reported so far). Your home's pipes can make yours higher.
Violations
Resolved7 health-based violations since 2016, most recently Oct 2024.
What you can do
  • Pregnant, or mixing baby formula with tap water? Babies drink more water for their size, so PFAS exposure matters more for them. Consider bottled water or a filter certified for PFAS for formula, and ask your doctor. Health effects.
  • To lower your PFAS exposure now, a home filter certified for PFAS reduction works (reverse osmosis, or activated carbon certified to NSF/ANSI 53 or 58). Filters for these results.
  • Built before 1986, or not sure what your service line is made of? Check your service line and test your tap. Utility data can't show your pipes.
  • Tested your own tap? Compare your result with these numbers. Moving? Compare this system with another.
  • Read City of Dublin's annual water quality report (Consumer Confidence Report). It lists every regulated contaminant tested and is usually on the utility's website or mailed with your bill, and you can also request it at (254) 445-3331. EPA: how to find it.

PFAS (“forever chemicals”)

EPA UCMR 5: 1 entry point tested Mar 2023 to Mar 2024. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.

ContaminantHighest averageHighest resultLimitStatus
PFOA
Not detected
Limit 4 ppt
––4 pptNot detected
PFOS
Above limit
Limit 4 ppt
4.3 ppt
1.07× the limit
9.8 ppt4 pptAbove limit
PFHxS
Not detected
Limit 10 ppt
––10 pptNot detected
PFNA
Not detected
Limit 10 ppt
––10 pptNot detected
HFPO-DA (GenX)
Not detected
Limit 10 ppt
––10 pptNot detected
Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit)
Not detected
Limit 1
––1Not detected
PFBS
Not detected
Guideline 2,000 ppt
––2,000 ppt guidelineNot detected
PFBA
Detected, below limit
Guideline 6,000 ppt
9.35 ppt18.7 ppt6,000 ppt guidelineDetected, below limit
PFHxA
Not detected
Guideline 3,000 ppt
––3,000 ppt guidelineNot detected

For context: the PFOS average is higher than at 97% of the Texas systems EPA tested.

29 PFAS tested, 2 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.

Lithium

Not detected in 4 samples (reporting limit 9 ppb). About lithium.

Lead and copper

Latest 90th percentile: 3.53 ppb lead (Jan 2024 – now (in progress)). Below action level

Highest since 2016: 3.99 ppb (Dec 2023).

Monitoring periodLead (90th pct.)
Jan 2024 – now (in progress)3.53 ppb
Jan 2021 – Dec 20233.99 ppb
Jan 2020 – Dec 20200 ppb
Earlier results (9)
Jan 2016 – Dec 20162.8 ppb
Jan 2010 – Dec 20122.4 ppb
Jan 2007 – Dec 20091.77 ppb
Jan 2004 – Dec 20062.2 ppb
Jan 2001 – Dec 20031.7 ppb
Jan 1997 – Dec 19990.9 ppb
Jan 1994 – Dec 19962.4 ppb
Jan 1995 – Dec 19951.8 ppb
Jan 1994 – Jun 19945.2 ppb

Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.

Violations

7
Health-based since 2016
10
Monitoring/reporting since 2016
0
Health-based unresolved now (plus 1 paperwork)
61
Total ever recorded, incl. paperwork
WhenWhat happenedStatus
Oct 2024The system did not publish the required inventory of lead service lines (due October 2024). It says nothing about lead levels in the water.
EPA record: Lead and copper rule revisions · LSL Inventory
Resolved
Resolved
Apr 2023 – Jul 2024
6 times
The running annual average for TTHM was above the legal limit.
EPA record: TTHM · Maximum Contaminant Level Violation, Average · measured 0.098 mg/l (limit 0.080 mg/L)
Resolved
Resolved

1 unresolved monitoring or reporting violation: Consumer Confidence Rule.

Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.

Earlier EPA testing (2013–2020)

ContaminantHighestGuidelineDetectedTested
Manganese7.9 ppb300 ppb4 of 4UCMR 4 (2018)

Where it serves

Dublin

ZIP codes the system reported serving: 76446

Nearby utilities

Questions

Is City of Dublin water safe to drink?

City of Dublin had 7 health-based violations since 2016, all since resolved. EPA testing found PFAS above the 2024 federal limits, which systems must meet by 2029. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.

Does City of Dublin water have PFAS?

Yes. EPA's 2023–2025 testing of City of Dublin found 2 PFAS at least once. The highest entry-point averages were above the federal limit for PFOS: PFOS 4.3 ppt (limit 4 ppt for PFOA and PFOS, 10 ppt for the others).

What is the lead level in City of Dublin water?

The most recent 90th-percentile lead result for City of Dublin is 3.53 ppb, for the monitoring period that began Jan 2024 (still in progress). The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.

Check these numbers yourself

Every figure on this page comes from public EPA records. You don't have to take our word for it:

Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.