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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
EPA records for DUNEDIN WATER SYSTEM • Updated September 2026
Grade B — based on EPA compliance records, lead testing and PFAS monitoring
DUNEDIN WATER SYSTEM is in good standing with EPA, with only minor deductions for monitoring paperwork, low-level PFAS or historical readings near a limit.
Yes — by EPA's records Dunedin, FL tap water is safe to drink and earns a B. The grade rests on arsenic averaging 7.9 ug/l against a 10 ug/l limit in 2012–2019 samples (6 over the limit). Lead from your own service line or plumbing is the main risk city-level data cannot see, so homes built before 1986 should still test at the tap.
Yes — by EPA's records Dunedin, FL tap water is safe to drink and earns a B. The grade rests on arsenic averaging 7.9 ug/l against a 10 ug/l limit in 2012–2019 samples (6 over the limit). Lead from your own service line or plumbing is the main risk city-level data cannot see, so homes built before 1986 should still test at the tap.
DUNEDIN WATER SYSTEM's most recent Lead and Copper Rule result (2023-01-01 to 2023-12-01) was 1.5 ppb at the 90th percentile, below EPA's 15 ppb action level. Because lead usually comes from service lines and household plumbing, homes built before 1986 should still test at the tap.
No. None of the 58 UCMR5 PFAS results for DUNEDIN WATER SYSTEM (2023-01-25 to 2023-07-17) were at or above the reporting limit of roughly 3–5 ppt.
DUNEDIN WATER SYSTEM has 24 violations on file since 2016: 0 health-based in the last five years and 22 monitoring or reporting violations in that window. Monitoring violations are paperwork lapses, not measured contamination.
DUNEDIN WATER SYSTEM reports groundwater as its primary source and serves about 46,161 people (EPA PWSID FL6520486).
Optional but sensible. The findings on this page are below federal limits; an NSF-certified pitcher or under-sink filter handles arsenic and improves taste.
Compare filter options for your Dunedin tap water
Historical monitoring (2012–2019) shows arsenic near or above the EPA limit in Dunedin.
Unsure which contaminants to treat? Compare home kits and certified lab testing before buying.
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DUNEDIN WATER SYSTEM · SDWIS records since 2016 · 5-year window starts 2021-09-13
EPA records no health-based violations for this system in the last five years. The 22 violations on file in that window are monitoring or reporting paperwork issues, not measured contaminant exceedances.
| Violation | Category | Compliance period | Status |
|---|---|---|---|
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2026-03-01 → 2026-03-31 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-12-01 → 2025-12-31 | Resolvedreturned 2025-12-31 |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-11-01 → 2025-11-30 | Resolvedreturned 2025-11-30 |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-09-01 → 2025-09-30 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-08-01 → 2025-08-31 | Archived |
| Consumer Confidence Report Complete Failure to ReportConsumer Confidence Rule | Other | 2025-07-01 | Resolvedreturned 2025-11-03 |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-07-01 → 2025-07-31 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-06-01 → 2025-06-30 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-05-01 → 2025-05-31 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-04-01 → 2025-04-30 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-03-01 → 2025-03-31 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2025-02-01 → 2025-02-28 | Archived |
| Monitoring and Reporting (DBP)Total Haloacetic Acids (HAA5) | Monitoring & reporting | 2025-01-01 → 2025-03-31 | Archived |
| Monitoring and Reporting (DBP)TTHM | Monitoring & reporting | 2025-01-01 → 2025-03-31 | Archived |
| Monitoring, RegularNitrate | Monitoring & reporting | 2025-01-01 → 2025-12-31 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2024-11-01 → 2024-11-30 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2024-09-01 → 2024-09-30 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2024-08-01 → 2024-08-31 | Archived |
| Consumer Confidence Report Inadequate ReportingConsumer Confidence Rule | Other | 2024-07-01 | Resolvedreturned 2024-07-01 |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2024-07-01 → 2024-07-31 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2024-06-01 → 2024-06-30 | Archived |
| Monitoring, Routine (RTCR)Revised Total Coliform Rule | Monitoring | 2024-03-01 → 2024-03-31 | Resolvedreturned 2024-03-31 |
| Monitoring and Reporting (DBP)Total Haloacetic Acids (HAA5) | Monitoring & reporting | 2024-01-01 → 2024-03-31 | Archived |
| Monitoring and Reporting (DBP)TTHM | Monitoring & reporting | 2024-01-01 → 2024-03-31 | Archived |
Source: ECHO SDWA bulk download (SDWA_VIOLATIONS_ENFORCEMENT.csv, SDWIS 2026Q2, file dated 2026-07-09, fetched 2026-09-13)
EPA Lead and Copper Rule 90th-percentile results reported by DUNEDIN WATER SYSTEM
Well below the 15 ppb action level. In the most recent monitoring period on file (2023-01-01 to 2023-12-01), 90% of the homes DUNEDIN WATER SYSTEM sampled had lead at or below 1.5 ppb.
EPA's action level is 15 ppb (dropping to 10 ppb under the 2024 Lead and Copper Rule Improvements). There is no safe level of lead; the 90th-percentile figure describes the system, not your tap — homes with lead service lines or pre-1986 plumbing can be higher.
| Monitoring period | Lead 90th percentile | vs 15 ppb action level |
|---|---|---|
| 2023-01-01 → 2023-12-01 | 1.5 ppb | Well below the 15 ppb action level |
| 2020-01-01 → 2020-12-01 | 1.2 ppb | Well below the 15 ppb action level |
| 2017-01-01 → 2017-12-01 | 1.4 ppb | Well below the 15 ppb action level |
| 2014-01-01 → 2014-12-01 | 0.6 ppb | Well below the 15 ppb action level |
| 2011-01-01 → 2011-12-01 | 0.8 ppb | Well below the 15 ppb action level |
| 2008-01-01 → 2008-12-01 | 2.6 ppb | Well below the 15 ppb action level |
| 2002-01-01 → 2002-12-31 | 1.1 ppb | Well below the 15 ppb action level |
| 1999-01-01 → 1999-12-31 | 2.6 ppb | Well below the 15 ppb action level |
| 1996-01-01 → 1996-12-31 | 5.4 ppb | Below the action level, but detectable |
| 1995-01-01 → 1995-12-31 | 1 ppb | Well below the 15 ppb action level |
| 1993-07-01 → 1993-12-31 | 8 ppb | Below the action level, but detectable |
| 1993-01-01 → 1993-06-30 | 7 ppb | Below the action level, but detectable |
Source: ECHO SDWA bulk download (SDWA_LCR_SAMPLES.csv, SDWIS 2026Q2, file dated 2026-07-09, fetched 2026-09-13)
EPA UCMR5 monitoring, 2023-01-25 to 2023-07-17 · 58 PFAS results at entry points to the distribution system
No PFAS detected. None of the 58 UCMR5 PFAS results for DUNEDIN WATER SYSTEM were at or above the method reporting limit. Reporting limits are about 3–5 ppt, so “not detected” means below that threshold — not proven zero.
| Compound | Detects / samples | Max (ppt) | Reporting limit | EPA MCL |
|---|---|---|---|---|
| PFOA | 0 / 2 | < 4 | 4 ppt | 4 ppt |
| PFOS | 0 / 2 | < 4 | 4 ppt | 4 ppt |
| PFHxS | 0 / 2 | < 3 | 3 ppt | 10 ppt |
| PFNA | 0 / 2 | < 4 | 4 ppt | 10 ppt |
| HFPO-DA | 0 / 2 | < 5 | 5 ppt | 10 ppt |
| PFBS | 0 / 2 | < 3 | 3 ppt | hazard index only |
“< 4 ppt” means below the laboratory reporting limit, not zero. ppt = parts per trillion (ng/L). Results are for finished water leaving the treatment plant.
What PFAS are and how to remove them →
Source: UCMR5 occurrence data, EPA Data Summary July 2026 (UCMR5_All.txt)
EPA Six-Year Review 4 compliance samples for DUNEDIN WATER SYSTEM · finished water only · dated data, released 2024
These are the regulated-contaminant samples DUNEDIN WATER SYSTEM reported to its state between 2012 and 2019 — the most recent nationwide sample-level dataset EPA has published. Arsenic, Total trihalomethanes (TTHM) are flagged below; the status column explains why. Treat this as history, not today's tap water.
| Contaminant | Samples | Average | Max | EPA limit | Status |
|---|---|---|---|---|---|
| Arsenic | 16 | 7.888 µg/L | 21 µg/L | 10 µg/LMCL | 6 of 16 samples over MCL |
| Nitrate (as N) | 94 detects | 0.052 mg/L | 0.28 mg/L | 10 mg/LMCL | Within MCL |
| Fluoride | 83 | 0.664 mg/L | 0.9 mg/L | 4 mg/LMCL | Within MCL |
| Chromium (total) | 91 detects | 0.333 µg/L | 3 µg/L | 100 µg/LMCL | Within MCL |
| Uranium (combined) | 43 detects | 0.183 µg/L | 0.298 µg/L | 30 µg/LMCL | Within MCL |
| Total trihalomethanes (TTHM) | 146 | 53.993 µg/L | 113 µg/L | 80 µg/LMCL (LRAA) | 16 single samples over MCL; average within limit |
| Haloacetic acids (HAA5) | 146 | 8.982 µg/L | 23.5 µg/L | 60 µg/LMCL (LRAA) | Within MCL |
| Lead (tap samples) | 90 detects | 0 µg/L | ND | 15 µg/Laction level (90th percentile) | Reported, not scored (compliance is on the 90th percentile) |
| Copper (tap samples) | 94 detects | 0.389 µg/L | 1.6 µg/L | 1300 µg/Laction level (90th percentile) | Reported, not scored (compliance is on the 90th percentile) |
Averages count non-detects as zero. TTHM and HAA5 limits are locational running annual averages, so a single high sample is not a violation — we grade those on the average only. Lead and copper rows are individual tap samples and are shown for context; compliance (and our score) uses the 90th-percentile result above. LRAA = locational running annual average; ND = not detected.
Source: SYR4 Six-Year Review compliance monitoring data 2012–2019 (released 2024-03)
DUNEDIN WATER SYSTEM · 14,509 service lines inventoried · Q2 2026 snapshot
DUNEDIN WATER SYSTEM reports no lead or galvanized-requiring-replacement service lines and has classified 100% of its 14,509 lines as non-lead. Lead can still come from pre-1986 plumbing and fixtures inside a home.
Source: EPA SDWIS Service Line Inventory (Q2 2026) · PWS ID FL6520486 · See all Florida lead service lines. We may earn a commission from filters and test kits, at no extra cost to you.
Groundwater systems draw from wells; naturally occurring arsenic, nitrate, radium and uranium are the readings to watch, along with PFAS near industrial or military sites.
How to test your tap water and the treatment options that actually fit Dunedin homes
The most reliable way to know what is actually coming out of your tap is a certified mail-in lab test. City-wide EPA data (like the report above) reflects the water leaving the treatment plant, but contaminants such as lead and copper can be picked up from your own service line and household plumbing — so the water at your Dunedin faucet can differ from the system average. A state-certified lab measures dozens of contaminants at once with results you can trust; you can also find one near you through the EPA's certified-lab list at epa.gov/dwlabcert. Hardware-store test strips are cheaper and instant, but they only screen for a few basics (chlorine, hardness, pH, and a rough lead pass/fail) and are far less accurate — treat them as a first look, not a diagnosis.
Match the treatment to what your test finds. Reverse osmosis (RO) removes the widest range of contaminants — lead, arsenic, nitrate, PFAS, and dissolved solids — which makes an under-sink reverse osmosis system the most thorough choice for Dunedin households with heavy-metal or PFAS concerns. If your main issue is taste, odor, or chlorine, an activated carbon filter (pitcher, faucet, or under-sink) is simpler and cheaper and handles chlorine and many organic compounds well, though carbon alone does not remove arsenic, nitrate, or most PFAS. NSF-certified pitchers rated for lead reduction are the easiest way to start today while you decide on a permanent setup.
We may earn a commission from testing kits and filters purchased through these links, at no extra cost to you.
What Dunedin residents measured at their own tap (ZIPs 34698). All reader results →
Reader submissions are unverified and shown separately from EPA data. They reflect one tap on one day, not the utility's compliance record.
No reader results for Dunedin yet - yours would be the first. A hardness or TDS number from a $10 strip kit is enough to start the map.
Help build the first reader-sourced water map. Enter whatever your test strip, TDS pen or lab report shows - one number is enough.
Dunedin ranks #40 of 87 graded Florida cities.
Deep-dive guides for the specific contaminants EPA data flagged in Dunedin's water, with removal options for each.
Yes — by EPA's records Dunedin, FL tap water is safe to drink and earns a B. The grade rests on arsenic averaging 7.9 ug/l against a 10 ug/l limit in 2012–2019 samples (6 over the limit). Lead from your own service line or plumbing is the main risk city-level data cannot see, so homes built before 1986 should still test at the tap.
DUNEDIN WATER SYSTEM's most recent Lead and Copper Rule result (2023-01-01 to 2023-12-01) was 1.5 ppb at the 90th percentile, below EPA's 15 ppb action level. Because lead usually comes from service lines and household plumbing, homes built before 1986 should still test at the tap.
No. None of the 58 UCMR5 PFAS results for DUNEDIN WATER SYSTEM (2023-01-25 to 2023-07-17) were at or above the reporting limit of roughly 3–5 ppt.
DUNEDIN WATER SYSTEM has 24 violations on file since 2016: 0 health-based in the last five years and 22 monitoring or reporting violations in that window. Monitoring violations are paperwork lapses, not measured contamination.
DUNEDIN WATER SYSTEM reports groundwater as its primary source and serves about 46,161 people (EPA PWSID FL6520486).
Optional but sensible. The findings on this page are below federal limits; an NSF-certified pitcher or under-sink filter handles arsenic and improves taste.
Historical monitoring (2012–2019) shows arsenic near or above the EPA limit in Dunedin.
Best for Arsenic Removal
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Reverse osmosis removes arsenic to safe levels — the EPA-recommended treatment for arsenic (carbon pitchers don't remove it).
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Filters rated for arsenic reduction
Waterdrop's arsenic collection — arsenic needs RO-class treatment, and these are the systems built for it.
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Whole-house system — treats every tap at the source
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Test your tap water first, so you filter for what's actually in it.
Shop Home Water Test Kits →We may earn a commission from Amazon and Waterdrop when you purchase through our links, at no extra cost to you.
Based on contaminants detected in your water, these resources may be helpful:
Find the right filter for your Dunedin water quality needs:
Tap water is one piece of the picture — our sister sites cover the rest for Dunedin, FL.
County radon prediction and EPA zone for homes around Dunedin.
Arsenic and nitrate risk for homes on a well instead of city water.
Understand your water better with our in-depth guides on contaminants, filtration, and water safety.