- EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
- PFBA (a PFAS): found in 2 of 4 samples, average 3.4 ppt, highest 8.2 ppt (EPA UCMR 5 testing, Nov 2023–Aug 2024)
- Lead: 9 in 10 homes tested came in at or below 0 ppb, at or below EPA's 15 ppb action level (latest EPA result for a testing period that ran on or after July 1, 2021: Jan 1, 2023–Dec 31, 2025). This is one number for the whole water system, from homes the utility tested. It isn't a result for your home.
- Health-standard violation: Surface Water Treatment Rules, Interim Enhanced Surface Water Treatment Rule, Jan 2026–Mar 2026 (EPA SDWIS)
- Health-standard violation: Surface Water Treatment Rules, Interim Enhanced Surface Water Treatment Rule, from Jan 2026, with no return-to-compliance action in EPA records (EPA SDWIS)
- Health-standard violation: Surface Water Treatment Rules, Long Term 2 Enhanced Surface Water Treatment Rule, Jan 2026–Apr 2026 (EPA SDWIS)
- Health-standard violation: Lead and Copper Rule, LEAD AND COPPER RULE REVISIONS, Oct 2024–Jan 2025 (EPA SDWIS)
Public EPA test results
Can you drink Monroe tap water? What EPA records show
EPA system ID LA1073031 · serves Ouachita Parish County, LA · about 57,000 people (EPA records)
Here's what EPA has on file for this water system: its testing for newer contaminants like PFAS (UCMR 5), lead testing and violations. It's not a test of your tap, and there's no Water Score here.
Public EPA test results
City of Monroe Water System (EPA LA1073031)
ScoreYourWater.com gives no verdict on your tap water; it shows what the public records say, as of October 14, 2026. For Monroe's main utility, City of Monroe Water System: 4 health-standard violations since July 1, 2021 in EPA records (EPA SDWIS). PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
What EPA records show for City of Monroe Water System, as of October 14, 2026
4 health-standard violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead: 9 in 10 homes tested came in at or below 0 ppb, at or below EPA's 15 ppb action level (latest EPA result for a testing period that ran on or after July 1, 2021: Jan 1, 2023–Dec 31, 2025). This is one number for the whole water system, from homes the utility tested. It isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does City of Monroe Water System use chloramine?
EPA treatment records (state-reported) list chloramines for City of Monroe Water System. EPA record
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)
Source: EPA SDWIS (ECHO SDWA bulk download), data as of Oct 14, 2026
Source: EPA UCMR 5 occurrence data, data as of Oct 15, 2026
These are EPA's public records for this water system, shown as of October 14, 2026. If you represent this utility, or think a record here is wrong, tell us: Report an error. If the error is in EPA's own records, your state drinking water program can correct it there, and this page updates at our next data refresh.
Sources
- EPA ECHO detailed facility report: City of Monroe Water System (LA1073031), July to September 2026 extract
- EPA SDWIS (ECHO SDWA bulk download), July to September 2026 extract
- EPA UCMR 5 occurrence data, samples through June 2026
Questions people ask
Is Monroe tap water safe to drink?
We don't give a safe or unsafe verdict. Here is what the public data shows: EPA records for Monroe's main utility, City of Monroe Water System, as of October 14, 2026. 4 health-standard violations since July 1, 2021 in EPA records (EPA SDWIS). PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing. A guideline and a legal limit are different things, and this is public data, not a test of your tap.
Which utility supplies water in Monroe?
City of Monroe Water System is the main utility for Monroe in EPA's records (EPA LA1073031), serving about 57,000 people (EPA SDWIS). Your water bill names your utility.
Does Monroe tap water contain PFAS?
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing. This is public data, not a test of your tap.
How recent is this data?
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026. Data may be one to three years old and may not reflect the water at your tap. If you want your own tap tested, use a state-certified laboratory.
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