Community Water System · PWS MS0060008
Town of Duncan
Operator location Duncan, Mississippi - smaller served population (≤ 999) at 341 people served; 346 SDWIS violations on record from groundwater sources.
- 341
- People served (this PWS)
- 346
- EPA violations (this PWS)
- 20
- Health-based (this PWS)
- No PFAS
- UCMR5 (this PWS)
Town of Duncan standing, high SDWIS violation third
341 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 6% is middle-third health share (≤ 23%). UCMR5: UCMR5 tested, none detected.
The verdict
Town of Duncan sits in the upper third of the sitemap cohort by violation count (346), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (341; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 6% (middle-third health share (≤ 23%)). UCMR5 tested this system and reported no PFAS above the minimum reporting level.
- 346
- Total EPA violations on record
- 6%
- Health-based (MCL / treatment failure)
- 341
- People served by this PWS (SDWIS)
- 0
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 129
- County
- Bolivar
- School/Daycare
- No
- MCL Violations
- 20
- Monitoring Violations
- 310
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MR | 86 | 2012 |
| Radium-226 | MR | 64 | 2012 |
| Radium-228 | MR | 64 | 2012 |
| Gross Alpha, Excl. Radon and U | MR | 28 | 2008 |
| Combined Radium (-226 and -228) | MR | 28 | 2008 |
| TTHM | MCL | 20 | 2021 |
| TTHM | MR | 14 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 14 | 2023 |
| Nitrate-Nitrite | MR | 4 | 2024 |
| Nitrate | MR | 4 | 2024 |
| Nitrite | MR | 4 | 2024 |
| Public Notice | Other | 2 | 2023 |
Violation Count vs. the National Corpus
Town of Duncan has 346 recorded EPA violations, 92% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 8% carry more. 6% of this system's own violations are health-based (20 of 346), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
346 Higher than most more violations than 92% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 87 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFBS | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 7/1/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 7/1/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 7/1/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 7/1/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 9Cl-PF3ONS | 7/1/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHpA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 7/1/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 7/1/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 7/1/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTA | 7/1/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHxS | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 7/1/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| ADONA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 7/1/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFEESA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 7/1/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 7/1/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 7/1/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 7/1/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 7/1/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 7/1/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NFDHA | 7/1/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHxA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 3/18/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 3/18/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 3/18/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFUnA | 3/18/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 8:2 FTS | 3/18/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDoA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 3/18/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 3/18/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 3/18/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 3/18/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFMPA | 3/18/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 3/18/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
Population served record for Town of Duncan
EPA SDWIS lists 341 people served and 129 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
346 violations · 341 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Town of Duncan
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Mississippi compares on the same EPA violation measures. Mississippi systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.