Is Carthage, TX tap water safe?
The short answer
5 of the 6 utilities serving Carthage have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: City of Carthage, Hollands Quarter WSC, Rehobeth WSC and 2 more.
City of Carthage, which serves the most people here, has 2 results above the legal limit. The worst: Haloacetic acids (HAA5) at 61.8 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 Carthage’s ZIP codes, from EPA’s estimates.
- Open report
City of Carthage
Texas · serves 6,770 people · about 210 in Carthage
2 results above the legal limit. The worst: Haloacetic acids (HAA5) at 61.8 ppb, above the legal limit.
10 health-based violations since 2016
- Open report
Hollands Quarter WSC
Texas · serves 1,605 people · under 100 in Carthage
2 results above the legal limit. The worst: Total trihalomethanes (TTHM) at 81.4 ppb, above the legal limit.
5 health-based violations since 2016
- Open report
Deadwood WSC
Texas · serves 1,176 people · under 100 in Carthage
1 result above the health goal. The worst: Lead at 0.89 ppb, above the health goal.
No health-based violations since 2016
- Open report
Rehobeth WSC
Texas · serves 1,095 people · under 100 in Carthage
2 results above the legal limit. The worst: Haloacetic acids (HAA5) at 55.4 ppb, above the legal limit.
5 health-based violations since 2016
- Open report
Riderville WSC
Texas · serves 837 people · under 100 in Carthage
1 result above the legal limit. The worst: Haloacetic acids (HAA5) at 65.4 ppb, above the legal limit.
5 health-based violations since 2016
- Open report
A & P WSC Pump 1
Texas · serves 645 people · under 100 in Carthage
2 results above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 65.9 ppb, above the legal limit.
5 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 City of Carthage’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana Clean Water Machine (AQ-CWM2)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM)
Brita Hub Countertop Water Filter System (87340)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM)
Ninja HydraSense Countertop Water Filtration System (WF1001)
Countertop
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM)
Water testing near Carthage
The 3 labs Texas certifies closest to Carthage, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Southern Petroleum Laboratories (SPL), Inc. (FKA Ana-Lab Corporation)
Kilgore, TX · about 39 miles
Certified for bacteria, lead and copper
Eastex Environmental Lab, Inc.-Nacogdoches
Nacogdoches, TX · about 42 miles
Certified for bacteria
Environmental Monitoring Lab
Winona, TX · about 54 miles
Certified for bacteria
Texas Well Owner Network, Texas A&M AgriLife Extension: Well Informed screening events, where well owners bring in water samples to be screened for common contaminants, followed by an hour-long session explaining the results. Upcoming events are on the network's calendar. Trainings, Texas Well Owner Network.
All 80 certified labs for TexasZIP codes in Carthage
Which ZIP codes are in Carthage: 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. Certified labs: TCEQ, drinking water laboratories approved for public water system samples; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Carthage
Towns nearby with a page of their own.
What to do next
- Read City of Carthage’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Haloacetic acids (HAA5)What it does to health, where it comes from, and the certification claim that addresses it.About Haloacetic acids (HAA5)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water