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Tap water quality report

City of Berwick

EPA monitoring tested this supplier for 44 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
15
detected
5,024
people served
1
health-based violations
Water source
SWP
Ownership
Local government
Counties served
St. Mary Parish

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

1
health-based violations
14
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
MON Monitoring Resolved 2019-04-01 → 2019-05-01
MON Monitoring Resolved 2019-04-01 → 2019-05-01
MON Monitoring Resolved 2019-04-01 → 2019-05-01
MON Monitoring Resolved 2019-04-01 → 2019-05-01
MON Monitoring Resolved 2019-02-01 → 2019-02-28
MON Monitoring Resolved 2019-02-01 → 2019-02-28
MON Monitoring Resolved 2019-02-01 → 2019-02-28
MON Monitoring Resolved 2019-02-01 → 2019-02-28

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0063 µg/L 2/4 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
13 µg/L
No EPA limit set
34/34 SYR4 2015–2019
Chloroform
29 µg/L
No EPA limit set
34/34 SYR4 2015–2019
TTHM
45.2 µg/L 57%
of the EPA limit 80 µg/L
34/34 SYR4 2015–2019
Dibromochloromethane
4.3 µg/L
No EPA limit set
33/34 SYR4 2015–2019
Dichloroacetic Acid
22 µg/L
No EPA limit set
31/34 SYR4 2015–2019
Total Haloacetic Acids (HAA5)
40.1 µg/L 67%
of the EPA limit 60 µg/L
31/34 SYR4 2015–2019
Trichloroacetic Acid
17 µg/L
No EPA limit set
31/34 SYR4 2015–2019
Dibromoacetic Acid
2.2 µg/L
No EPA limit set
28/34 SYR4 2015–2019
Copper
3600 µg/L 277%
of the EPA limit, in the worst sample — 1300 µg/L
19/40 SYR4 2016–2019
Lead
10 µg/L 67%
of the EPA limit 15 µg/L
6/40 SYR4 2016–2019
Monobromoacetic Acid
5.1 µg/L
No EPA limit set
6/34 SYR4 2015–2019
Monochloroacetic Acid
2.7 µg/L
No EPA limit set
6/34 SYR4 2015–2019
Lead
0.00070 mg/L 4.7%
of the EPA limit 0.0150 mg/L
4/4 LCR 2025
Bromoform
0.3500 µg/L
No EPA limit set
2/34 SYR4 2015–2019
29 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
ARTHUR, DUVAL
Phone
985-384-8858
Email
duval@townofberwick.org

Frequently asked questions about City of Berwick

Is City of Berwick tap water safe to drink?

EPA monitoring detected 15 contaminants in City of Berwick's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in City of Berwick's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Dibromochloromethane, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does City of Berwick serve?

City of Berwick reports serving 5,024 people in Louisiana, per its EPA record.

Has City of Berwick had any water quality violations?

The EPA has 14 violations on file for City of Berwick, of which 1 is health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.