Is Richwood, LA tap water safe?
The short answer
2 of the 2 utilities serving Richwood have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Gowc South Monroe WS and Prairie Road Water District.
Gowc South Monroe WS, which serves the most people here, has 1 result above the legal limit and 2 results above the health goal. The worst: Total trihalomethanes (TTHM) at 55 ppb, above the legal limit.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Richwood’s ZIP codes, from EPA’s estimates.
- Open report
Gowc South Monroe WS
Louisiana · serves 7,335 people · about 430 in Richwood
1 result above the legal limit and 2 results above the health goal. The worst: Total trihalomethanes (TTHM) at 55 ppb, above the legal limit.
12 health-based violations since 2016
- Open report
Prairie Road Water District
Louisiana · serves 2,598 people · under 100 in Richwood
1 result above the legal limit and 2 results above the health goal. The worst: Total trihalomethanes (TTHM) at 100 ppb, above the legal limit.
26 health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Gowc South Monroe WS’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead, Arsenic
Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Total trihalomethanes (TTHM), Lead, Arsenic
Water testing near Richwood
No lab Louisiana certifies is within 75 miles of Richwood on the state’s list. Some take samples by mail; the state’s page lists them all.
All 48 certified labs for LouisianaZIP codes in Richwood
Which ZIP codes are in Richwood: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology.
Near Richwood
Towns nearby with a page of their own.
What to do next
- Read Gowc South Monroe WS’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Total trihalomethanes (TTHM)What it does to health, where it comes from, and the certification claim that addresses it.About Total trihalomethanes (TTHM)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water