Community Water System · PWS LA1101014
Town of Berwick
Operator location Berwick, Louisiana - UCMR5 detected 1 PFAS compound (lower-third PFAS panel (≤ 2 compounds)) on this PWS; SDWIS lists 14 violations and 5,898 people served.
- 5,898
- People served (this PWS)
- 14
- EPA violations (this PWS)
- 1
- Health-based (this PWS)
- 1 PFAS
- UCMR5 (this PWS)
Town of Berwick standing, low SDWIS violation third
UCMR5 detected 1 PFAS compound - lower-third PFAS panel (≤ 2 compounds). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 7% is middle-third health share (≤ 23%). UCMR5: lower-third PFAS panel (≤ 2 compounds). Population rank #6,923 of 29,740 among systems serving 500+.
The verdict
Town of Berwick is in the lower third by violation count (14; lower-third violation load (≤ 21 violations)). A low count does not mean the system is unmonitored - monitoring and reporting violations still appear in SDWIS. Population served is large (5,898; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 7% (middle-third health share (≤ 23%)). UCMR5 detected 1 PFAS compound (lower-third PFAS panel (≤ 2 compounds)).
- #6,923 of 29,740
- Population · /systems
- #154 of 707
- Population · LA
- 14
- Total EPA violations on record
- 7%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,002
- County
- St. Mary Parish
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 12
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 8 | 2019 |
| Surface Water Treatment Rule | MR | 4 | 2019 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
Violation Count vs. the National Corpus
Town of Berwick has 14 recorded EPA violations, 24% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 75% carry more. 7% of this system's own violations are health-based (1 of 14), and it ranks #6,923 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
14 Among the lowest violation counts fewer violations than 75% 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. 2 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 9/17/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| NMeFOSAA | 9/17/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 9/17/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 9/17/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| ADONA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 6/4/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 6:2 FTS | 6/4/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMBA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 6/4/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NFDHA | 6/4/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/4/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFUnA | 6/4/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 6/4/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 6/4/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTA | 6/4/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 6/4/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFBA | 6/4/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 6/4/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOS | 6/4/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 6/4/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 6/4/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 6/4/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 6/4/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDoA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/4/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 4/9/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 4/9/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 4/9/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTA | 4/9/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| 9Cl-PF3ONS | 3/5/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFEESA | 3/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 3/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 3/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 3/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 3/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 3/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 3/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 3/5/2024 | 6.30 ppt | 5.00 ppt | Detected |
| NFDHA | 3/5/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| ADONA | 3/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 3/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 3/5/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
UCMR5 PFAS record for Town of Berwick
Open EPA SDWIS federal reports for PWS LA1101014 to cross-check UCMR5 detections and violation codes; state primacy agencies enforce the Safe Drinking Water Act locally.
Sources: EPA SDWIS
Nationwide peers
14 violations · 5,898 served: nearest cross-state SDWIS matches.
Cross-state systems with similarly light violation ledgers
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Town of Berwick
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Louisiana compares on the same EPA violation measures. Louisiana 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.