Fort Worth Water Quality Report 2026: What’s in Your Tap Water

QUICK SUMMARY:

Overall Rating: Fair
Top Contaminants of Concern: Naturally occurring arsenic, and a group of disinfection byproducts (trihalomethanes and haloacetic acids) formed when chloramine meets the organic matter in the city’s surface water
Recommended Filter Type: Reverse osmosis for drinking water — the one technology that reduces both arsenic and disinfection byproducts — with whole-house catalytic carbon for the chloramine taste and a softener for the hard water. See the best reverse osmosis systems and best whole house water filters guides.
Water Hardness: Hard — roughly 8 grains per gallon

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The City of Fort Worth Water Department serves more than 850,000 people, and in the most recent quarter assessed by the EPA it was in full compliance with federal health-based drinking water standards, with no Maximum Contaminant Level violations on record. That is the part most residents already assume, and it is accurate. It is also incomplete.

Here’s what the data actually shows. The EWG Tap Water Database, drawing on Fort Worth’s own reported testing, flags two distinct problems that the legal compliance figure hides. The first is arsenic, a naturally occurring carcinogen that EWG measures at roughly 264 times its health-based guideline. The second is a cluster of disinfection byproducts — trihalomethanes and haloacetic acids — that form during the treatment the city is required to perform. None of these is a legal violation. All of them sit far above the stricter, health-based benchmarks, and the gap between “legal” and “free of health concern” is exactly what a well-chosen filter is built to close.

Where Does Fort Worth Get Its Water?

Fort Worth is a surface-water city. Unlike Houston’s groundwater blend or the deep aquifers that feed parts of Texas, nearly all of Fort Worth’s supply is drawn from rivers and reservoirs across North Texas: Lake Worth (which the city owns), Eagle Mountain Lake, Lake Bridgeport, Cedar Creek Lake, and Richland-Chambers Reservoir (operated by the Tarrant Regional Water District), Benbrook Lake (managed by the US Army Corps of Engineers), and the Clear Fork of the Trinity River. That water is treated at several conventional surface-water plants before it reaches the distribution system.

The source matters because it shapes the contaminant list. Surface water is rich in dissolved organic matter — decaying leaves, algae, and runoff that rivers and lakes accumulate — which is harmless in itself but serves as the raw material for the disinfection byproducts discussed below. The region’s geology adds the second piece: as water moves through the limestone and chalk of the Trinity formation, it dissolves calcium and magnesium (which make the water hard) and picks up trace metals, including the arsenic that leads Fort Worth’s contaminant profile. The distinction matters: the arsenic is geological and present before treatment, while the byproducts are created by it.

How Fort Worth Disinfects: Chloramine

Fort Worth disinfects with chloramine, a compound formed by combining chlorine with a small amount of ammonia. Most people picture straight chlorine when they think of tap water, but a large share of US surface-water systems — Fort Worth among them — use chloramine instead, because it is more stable across a sprawling distribution network and, importantly, produces fewer of the regulated disinfection byproducts than free chlorine does.

That last point requires context. Chloramine reduces byproduct formation; it does not eliminate it. When any chlorine-based disinfectant contacts the organic matter in surface water, it forms trihalomethanes and haloacetic acids — the two byproduct groups that dominate Fort Worth’s health-guideline exceedances. Chloramine also carries one practical consequence worth knowing: it is harder to remove than free chlorine. An ordinary carbon filter that strips chlorine easily will not necessarily neutralize chloramine unless it uses catalytic carbon, a modified media designed for the job. Our explainer on chloramine vs chlorine in tap water covers why the disinfectant choice changes both the byproduct picture and the filter you need.

What Contaminants Are in Fort Worth Tap Water?

The table below draws on the EWG Tap Water Database, which compiles the City of Fort Worth’s own reported test data, alongside the utility’s annual Water Quality Report. One column needs explaining first. The EPA’s Maximum Contaminant Level (MCL) is the legal limit — the figure a utility cannot exceed without a violation. The EWG Health Guideline is a stricter, health-based benchmark, generally set at a one-in-one-million lifetime cancer risk and, in several cases here, derived from the California Office of Environmental Health Hazard Assessment’s public health goals. The gap between the two columns is where most of the meaningful risk lives, because several of these federal legal limits were set decades ago and have not been revisited since.

Contaminant	Detected Level	EPA MCL	EWG Guideline	Health Concern
Arsenic	~1.1 ppb	10 ppb	0.004 ppb	Cancer (bladder, lung, skin)
Total trihalomethanes (TTHMs)	~11.6 ppb	80 ppb	0.15 ppb	Cancer (bladder), fetal development
Haloacetic acids (HAA5)	~8.3 ppb	60 ppb	0.1 ppb	Cancer, reproductive harm
Bromodichloromethane	~3.4 ppb	— (in TTHM)	0.06 ppb	Cancer
Dibromochloromethane	~3.2 ppb	— (in TTHM)	0.1 ppb	Cancer
Chloroform	~3.7 ppb	— (in TTHM)	0.4 ppb	Cancer
Bromochloroacetic acid	~10 ppb	—	0.06 ppb	Cancer

Read the arsenic row first, because it is what sets Fort Worth apart from most surface-water cities. Arsenic is a naturally occurring element that leaches from the rock formations the city’s reservoirs and rivers draw from, and it is a potent carcinogen linked to bladder, lung, and skin cancers, with no comfortable safe threshold. Fort Worth’s reported level of roughly 1.1 part per billion is a small fraction of the 10 ppb federal limit — so there is no violation — but it runs about 264 times EWG’s very stringent 0.004 ppb health guideline. That guideline is set so low precisely because arsenic’s cancer risk has no clean cutoff. Arsenic is also the contaminant that drives filter selection here, because ordinary carbon filters do not reliably remove it; reverse osmosis does.

The disinfection byproducts come next, and they form a coherent group. Total trihalomethanes (TTHMs) — a family of four compounds, the largest here being chloroform, bromodichloromethane, and dibromochloromethane — run at about 11.6 ppb, comfortably under the 80 ppb legal ceiling but roughly 77 times the EWG guideline of 0.15 ppb. The haloacetic acids (HAA5) run at about 8.3 ppb against a 60 ppb legal limit, which EWG places at roughly 83 times its guideline. The individual species in the table are simply the components of those two groups, each carrying its own cancer association and each sitting well above its health-based guideline while staying within the law. This is the signature of a surface-water system disinfecting organic-rich water, and it is the part of Fort Worth’s profile that a quality carbon or reverse osmosis filter addresses most directly.

Two other contaminants deserve a brief, honest mention because they appear in Fort Worth’s broader EWG detection list without dominating it. Hexavalent chromium (chromium-6, the compound made famous by the Hinkley, California case) is detected; there is no separate federal limit for it, only a 100 ppb limit for total chromium, and reverse osmosis reduces it. Nitrate, largely from agricultural runoff, is also detected at levels within the federal 10 ppm limit. You can review the full contaminant list for the system at the EWG Tap Water Database entry for the City of Fort Worth. For the chemistry behind these two, see our guides to chromium-6 in drinking water and nitrate in drinking water.

A note on PFAS, the “forever chemicals” many readers now ask about: the City of Fort Worth has PFAS monitoring data on record, and its main system is not currently reporting PFAS above the enforceable limits the EPA finalized in 2024. Some smaller water systems in the broader Fort Worth area have shown higher detections in recent monitoring, so if you are served by a different utility than the City of Fort Worth, check your own system’s data rather than assuming the city figure applies.

What About Lead in Fort Worth?

Lead deserves a separate, brief note because it behaves differently from everything in the table above. The arsenic and the disinfection byproducts are in the water as it leaves the treatment plant. Lead is not — it enters water after treatment, by leaching from lead service lines, lead solder, and brass fixtures inside older buildings, and it does not appear in a system-wide average in a way that tells you what is happening at your own tap.

Fort Worth’s treated water leaves its plants essentially lead-free, and the city maintains corrosion-control treatment to keep the water from dissolving lead out of pipes along the way. But homes built before the 1986 federal ban on lead solder may still contain lead in their internal plumbing, and the only way to know your exposure is to test the water at your specific faucet. Our lead in drinking water guide covers the sources and the removal options, and the filter section below identifies units carrying genuine lead certification.

Fort Worth Water Hardness

Fort Worth’s water is hard. Reported hardness runs roughly 6 to 10 grains per gallon, averaging around 8 grains per gallon (about 137 milligrams per liter as calcium carbonate), a direct result of the calcium and magnesium the supply dissolves from North Texas limestone. Hardness is not a health concern — the EPA does not regulate it — but at this level the practical effects are real.

Hard water leaves scale on fixtures and inside water heaters, shortens the working life of appliances that heat water, and forces you to use more soap to get the same lather. At roughly 8 grains per gallon Fort Worth is firmly in “hard” territory, though not as extreme as some Texas groundwater systems that run past 15. Whether a whole-house softener is worth the cost depends on your appliances and your tolerance for spotting and scale; our hard water guide and solutions walks through when the math favors one. Keep the two problems separate, though: a softener fixes hardness, but it does not remove arsenic or disinfection byproducts. For those, you still want a drinking-water filter.

Best Water Filters for Fort Worth Residents

Fort Worth’s profile points to a clear priority. The two dominant issues are arsenic and disinfection byproducts — and arsenic is not reliably reduced by carbon alone. That combination makes reverse osmosis the most complete single answer for drinking water in Fort Worth, supported by whole-house treatment for the chloramine taste that reaches every tap and, optionally, a softener for the hard water.

The options below are matched to that profile, not copied from a default list. Each carries third-party certification to a specific NSF/ANSI standard from an accredited certifier. Certification is listed by model, not by brand, so verify the exact model in the certifier’s database before buying.

Reverse Osmosis: Waterdrop G3P800

Reverse osmosis is the strongest match for Fort Worth because the semipermeable RO membrane rejects dissolved contaminants broadly — which is what lets it reduce arsenic, the one Fort Worth contaminant that carbon leaves behind, alongside the trihalomethanes and haloacetic acids. The Waterdrop G3P800 is certified by IAPMO R&T to NSF/ANSI Standards 58, 42, 53, and 372 — Standard 58 being the reverse osmosis standard that governs total dissolved solids reduction, and Standard 372 covering lead-free materials. IAPMO R&T is an accredited certifier to the NSF/ANSI standards; because the certification is IAPMO’s rather than NSF International’s, it is a genuine certification but will not appear in NSF’s own database. Its tankless design fits under a standard sink and produces water faster than older tank-based units.

The trade-offs are inherent to the technology, not flaws in this model. Reverse osmosis strips beneficial minerals along with contaminants, so the water tastes flat to some people; it sends a portion of feed water to the drain as concentrate, a real consideration on Fort Worth’s metered supply; and it needs an electrical outlet under the sink. One installation note worth following: connect the drain and feed line with compression fittings rather than a self-piercing saddle valve, which a growing number of local plumbing codes now discourage because of long-term leak risk. Consumer Reports’ testing consistently ranks reverse osmosis highest for breadth of contaminant removal, and this model’s certifications can be confirmed in the IAPMO R&T product database rather than taken from marketing copy. For comparisons, see our best reverse osmosis systems guide.

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Countertop Reverse Osmosis: AquaTru Classic

For renters and households that cannot or do not want to modify their plumbing, a countertop reverse osmosis unit delivers the same breadth of reduction without an installation — and the AquaTru Classic is an unusually exact fit for Fort Worth. It is certified by IAPMO R&T to NSF/ANSI Standards 42, 53, 58, and 401, and its certified contaminant list specifically names arsenic, hexavalent chromium, nitrate, lead, PFOA, PFOS, and fluoride. That matters here because arsenic, chromium-6, and nitrate are all on Fort Worth’s documented detection list, and relatively few certified consumer units name those contaminants explicitly. To be precise about the label: this is an IAPMO certification, not an NSF International one, so it will not appear in NSF’s own database even though it is a genuine certification to the NSF/ANSI standards.

The limitations are real. The AquaTru is a countertop appliance with a footprint to match, so it occupies counter space and holds a finite reservoir rather than plumbing into your faucet. Like all reverse osmosis, it produces some wastewater, and its filters carry a recurring replacement cost that is higher per gallon than a simple carbon pitcher. For households weighing other no-plumbing options, our best countertop water filters guide covers the category.

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Whole House: SpringWell CF+

Because Fort Worth’s chloramine and disinfection byproducts reach every tap, a whole-house carbon system has more justification here than in many cities. The SpringWell CF+ uses catalytic carbon, the modified media specifically suited to reducing chloramine — an important detail, since Fort Worth chloraminates and ordinary activated carbon handles chloramine poorly. It treats the water as it enters the home, so showers and every faucet benefit from improved taste and odor, not just the kitchen. Its components are certified to NSF/ANSI 61 and 372 (the materials-safety and lead-free-materials standards); the complete system is tested to NSF standards for performance rather than holding a system-level performance certification, so the honest framing is “tested to,” not “certified” for contaminant removal. That is an accurate description of where SpringWell’s documentation stands, and it is a different and lesser claim than the model-specific certifications behind the two reverse osmosis picks above.

Two real limitations. First, a carbon system reduces chloramine and improves taste but does not remove arsenic, and it does not soften water — so in Fort Worth it is best paired with a reverse osmosis unit at the kitchen sink for arsenic in drinking water, and with a softener if the hardness is a nuisance. Second, whole-house systems require installation on your main line and periodic media service, which is a larger commitment than a point-of-use filter. SpringWell sells its own salt-based softener that can be installed alongside the CF+, which is the logical pairing for Fort Worth’s hard water; our best whole house water filters guide covers sizing and the combined setup.

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How to Test Your Fort Worth Tap Water

The City of Fort Worth’s Water Quality Report is a system-wide picture, measured at the plants and across the distribution network. It is the right tool for understanding the source water and the utility’s treatment performance, and the wrong tool for understanding your specific tap — especially for hardness, which varies across the service area, and for lead, which forms inside your own plumbing. The system-wide figures above are averages across hundreds of thousands of connections, not a measurement at your kitchen sink.

A certified home test closes that gap. For a broad screen, Tap Score (run by SimpleLab) sends samples to accredited laboratories and returns results you can read against the same EPA and health benchmarks used here, including arsenic, which most hardware-store test strips cannot detect. If you live in a home built before 1986, a lead-specific test is also worth running. Our how to test your water at home guide explains the options and what the results mean.

Get a Tap Score Test

Frequently Asked Questions

Is Fort Worth tap water safe to drink?

The City of Fort Worth’s water meets all federal drinking water standards and had no Maximum Contaminant Level violations in the most recent EPA-assessed period. That said, “compliant” is not the same as “free of all contaminants.” Naturally occurring arsenic and a group of disinfection byproducts run well above health-based guidelines while staying within legal limits. For most households the water is acceptable to drink, but a reverse osmosis filter meaningfully reduces the contaminants that remain — particularly arsenic, which ordinary carbon filters do not address.

Does Fort Worth water have arsenic?

Yes. Arsenic occurs naturally in the rock formations that feed Fort Worth’s reservoirs and rivers, and the City of Fort Worth’s reported level is roughly 1.1 part per billion. That is well under the 10 ppb federal limit but about 264 times EWG’s stricter 0.004 ppb health guideline, which is set that low because arsenic is a carcinogen with no comfortable safe threshold. Arsenic is not removed by ordinary carbon filters; reverse osmosis is the most reliable household method for reducing it, which is why the picks above lead with RO.

How hard is Fort Worth water?

Hard — reported at roughly 6 to 10 grains per gallon and averaging around 8, because the supply dissolves calcium and magnesium from North Texas limestone. Hardness is not a health risk, but at this level it causes scale on fixtures and water heaters and reduces soap performance. Whether a whole-house softener is worth the cost depends on your appliances; it is a closer call in Fort Worth than in the harder groundwater systems of central and south Texas. Note that a softener fixes hardness only — it does not remove arsenic or disinfection byproducts.

Do I need a water filter in Fort Worth?

For the broadest protection, a reverse osmosis system certified to NSF/ANSI 58 addresses Fort Worth’s two main drinking-water issues — arsenic and disinfection byproducts — in one unit, and a certified countertop RO does the same for renters with no plumbing changes. A whole-house catalytic carbon system improves the chloramine taste at every tap, and a softener handles the hard water, but neither removes arsenic. The most efficient setup for most Fort Worth homes is reverse osmosis for drinking water, plus whole-house carbon or softening if taste and scale are concerns.

Sources Cited

EWG Tap Water Database — City of Fort Worth Water Department (PWSID TX2200012): https://www.ewg.org/tapwater/system.php?pws=TX2200012
City of Fort Worth Water Department — annual Drinking Water Quality Report (Consumer Confidence Report): https://www.fortworthtexas.gov/departments/water
Tarrant Regional Water District — source water and reservoir information: https://www.trwd.com/resource/water-quality/
US EPA, National Primary Drinking Water Regulations — Stage 2 Disinfectants and Disinfection Byproducts Rule (MCLs for trihalomethanes and haloacetic acids); arsenic MCL; total chromium MCL
US EPA, Unregulated Contaminant Monitoring Rule (UCMR5) and 2024 PFAS National Primary Drinking Water Regulation
US EPA Enforcement and Compliance History (ECHO) — SDWIS compliance record, City of Fort Worth
Consumer Reports, water filter testing
NSF International certified product listings (info.nsf.org) and IAPMO R&T product database (pld.iapmo.org)

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