Is Clarksville City, TX tap water safe?
The short answer
2 of the 7 utilities serving Clarksville City 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 Gladewater and Starrville Friendship WSC.
City of Longview, which serves the most people here, has 1 result above the health goal. The worst: Arsenic at 0.33 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
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 Clarksville City’s ZIP codes, from EPA’s estimates.
- Open report
City of Longview
Texas · serves 83,236 people · about 1,300 in Clarksville City
1 result above the health goal. The worst: Arsenic at 0.33 ppb, above the health goal.
No health-based violations since 2016
- Open report
City of White Oak
Texas · serves 6,469 people · about 700 in Clarksville City
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
City of Gladewater
Texas · serves 6,441 people · about 230 in Clarksville City
1 result above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 88.8 ppb, above the legal limit.
28 health-based violations since 2016
- Open report
Liberty City WSC
Texas · serves 6,540 people · under 100 in Clarksville City
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 23.3 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Union Grove WSC
Texas · serves 3,198 people · under 100 in Clarksville City
1 result above the health goal. The worst: Lead at 1.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Starrville Friendship WSC
Texas · serves 2,121 people · under 100 in Clarksville City
1 result above the legal limit. The worst: Total trihalomethanes (TTHM) at 66.7 ppb, above the legal limit.
5 health-based violations since 2016
- Open report
City of Clarksville City
Texas · serves 972 people · under 100 in Clarksville City
Nothing in its records is above a health goal.
No 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 Longview’s water, which serves the most people here. Another utility’s report names what handles its own results.
Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money
Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
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: 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: Arsenic
Water testing near Clarksville City
The 3 labs Texas certifies closest to Clarksville City, 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 9 miles
Certified for bacteria, lead and copper
Environmental Monitoring Lab
Winona, TX · about 13 miles
Certified for bacteria
Northeast Texas Public Health District Laboratory
Tyler, TX · about 28 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 TexasWhich ZIP codes are in Clarksville City: 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 Clarksville City
Towns nearby with a page of their own.
What to do next
- Read City of Longview’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water