Montgomery County Water Services 2 Public Water System water quality
Trotwood, OH · serves 83,033 people (32,220 connections) · Purchased surface water · Local government · EPA ID OH5701503
Data: U.S. EPA · How we read the data · How we check it
Buys water from Dayton Public Water System. Treated water bought from another system can carry that system's contaminants.
Summary
No federal limits exceeded in EPA data.
- PFAS
- Detected, below limit5 of 29 PFAS found at least once. All averages below the federal limits.
- Lead
- Below action level0 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 ending Dec 2025. Your home's pipes can make yours higher.
- Violations
- Resolved2 health-based violations since 2016, most recently Jan 2017.
- 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.
- Want to reduce what was found? Filters for these results.
- Tested your own tap? Compare your result with these numbers. Moving? Compare this system with another.
- Read Montgomery County Water Services 2 Public Water System'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 (937) 781-2662. EPA: how to find it.
PFAS (“forever chemicals”)
EPA UCMR 5: 1 entry point tested Jul 2023 to May 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.
| Contaminant | Highest average |
|---|---|
| PFOA Not detected Limit 4 ppt | – |
| PFOS One sample above limit Limit 4 ppt | 3.45 ppt 86% of the limit |
| PFHxS Detected, below limit Limit 10 ppt | 4.13 ppt 41% of the limit |
| PFNA Not detected Limit 10 ppt | – |
| HFPO-DA (GenX) Not detected Limit 10 ppt | – |
| Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit) Detected, below limit Limit 1 | 0.41 |
| PFBS Detected, below limit Guideline 2,000 ppt | 0.75 ppt |
| PFBA Not detected Guideline 6,000 ppt | – |
| PFHxA Detected, below limit Guideline 3,000 ppt | 1.3 ppt |
| PFPeA Detected, no limit | 1.78 ppt |
29 PFAS tested, 5 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: 0 ppb lead (Jan 2025 – Dec 2025). Below action level
1 reported result in EPA's records is far above anything physically plausible (likely a unit or data-entry error) and is not used in the summary.
Highest since 2016: 4.54 ppb (Dec 2017).
| Monitoring period | Lead (90th pct.) |
|---|---|
| Jan 2025 – Dec 2025 | 0 ppb |
| Jan 2024 – Dec 2024 | 0 ppb |
| Jan 2023 – Dec 2023 | 3 ppb |
Earlier results (9)
| Jan 2022 – Dec 2022 | 0 ppb |
| Jan 2021 – Dec 2021 | 0 ppb |
| Jan 2020 – Dec 2020 | 0 ppb |
| Jan 2019 – Jun 2019 | 0 ppb |
| Jul 2018 – Dec 2018 | 0 ppb |
| Jan 2015 – Dec 2017 | 4.54 ppb |
| Jan 2012 – Dec 2014 | 0 ppb |
| Jan 2009 – Dec 2011 | 0 ppb |
| Jan 2008 – Dec 2010 | 6 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
| When | What happened |
|---|---|
| Jul 2016 – Jan 2017 2 times | The water chemistry that keeps lead from dissolving out of pipes was outside the range the state set. EPA record: Lead and Copper Rule · WQP Entry Point/Tap Treatment Technique Non-Compliance (limit TT ) Resolved |
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)
| Contaminant | Highest | Guideline |
|---|---|---|
| Chromium-6 | 0.13 ppb | – |
| Molybdenum | 5.7 ppb | 40 ppb |
| Strontium | 0.87 ppm | 1.5 ppm |
| 1,4-Dioxane | 2.1 ppb | 0.35 ppb |
Where it serves
Trotwood, Beavercreek
ZIP codes the system reported serving: 45309, 45414, 45416, 45417, 45431, 45432
Nearby utilities
- Dayton Public Water System Dayton · 6 mi · PFAS above limit
- Dayton VA Bldg 410 Water System Dayton · 6 mi · PFAS above limit
- Montgomery County Water Services 1 Public Water System Kettering · 11 mi · PFAS above limit
- Wright-Patterson AFB Area A Public Water System Wright-Patterson AFB · 15 mi · PFAS above limit
- Wright-Patterson AFB Area B Public Water System Wright-Patterson AFB · 15 mi · PFAS above limit
- Bellbrook Water Works Bellbrook · 16 mi · PFAS above limit
Questions
Is Montgomery County Water Services 2 Public Water System water safe to drink?
Montgomery County Water Services 2 Public Water System had 2 health-based violations since 2016, all since resolved. EPA testing found no PFAS above the federal limits. 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 Montgomery County Water Services 2 Public Water System water have PFAS?
Yes. EPA's 2023–2025 testing of Montgomery County Water Services 2 Public Water System found 5 PFAS at least once. None of the averages were above the federal limits.
What is the lead level in Montgomery County Water Services 2 Public Water System water?
The most recent 90th-percentile lead result for Montgomery County Water Services 2 Public Water System is 0 ppb, for the period ending Dec 2025. 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:
- EPA's own report for OH5701503: violations, enforcement and inspections, straight from EPA.
- EPA UCMR 5 data: the PFAS and lithium results (search the file for PWSID OH5701503).
- EPA SDWIS download: the lead results, population and violation records we use.
- The utility's annual water quality report (Consumer Confidence Report): ask Montgomery County Water Services 2 Public Water System at (937) 781-2662, or see EPA's guide to finding 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.