In Texas, water isn’t just “water” — it carries stories: of aquifers, treatment plants, pipes, and contaminants that vary by county. Many cities in Texas get a “Superior” rating from TCEQ (Texas Commission on Environmental Quality), but that doesn’t mean your tap is perfect for your home. For example, the City of Katy has earned a “Superior” water system rating for more than 30 years.
Still, whether your supply is municipal or well-based, many Texas families wrestle with issues like hardness (minerals like calcium and magnesium), chlorine (or chloramines), iron & manganese, sediment or turbidity, and increasingly PFAS (“forever chemicals”).
Add to that the recent discoveries: about 49 public water systems in Texas have reported exceeding the new federal limits for certain PFAS compounds.
Cities like Dallas have already shown PFAS levels above what EWG considers safe.
In short: yes, your water is probably legal by state standards — but legality ≠ ideal for your home, health, or appliances.
How These Contaminants Show Up (and Why You Should Care)
| Contaminant | Common in Texas? | What You Might Notice | Why It Matters |
|---|---|---|---|
| Hardness (Ca⁺² / Mg⁺²) | Very common across Texas | White scale on faucets, dull glassware, lower water pressure | Scale formation inside water heaters, reduced appliance lifespan, increased energy use, more detergent needed |
| Chlorine / Chloramines | Standard disinfectants | “Chlorine” smell, dry hair/skin, bleaches fabrics faster | Destroys rubber seals, contributes to byproduct formation (e.g. trihalomethanes), off taste |
| Iron & Manganese | Especially in well water or older pipes | Rust-colored stains in tubs/sinks, metallic taste, brown laundry | Clogs pipes, promotes bacterial growth, cosmetic damage |
| Sediment / Turbidity / Particles | After heavy rains, infrastructure issues | Cloudy water, grit at bottom of glass, increased filter clogging | Abrasive to faucets and appliances, carries other contaminants |
| PFAS (e.g. PFOA, PFOS) | Emerging concern across Texas | Little to no immediate sensory cue—taste or odor often unchanged | Long-term risks: cancer, liver damage, immune disruption; they accumulate in body over time |
| Nitrate / Arsenic / Lead / VOCs | Varies by region, wells, industrial sites | Strange taste, discoloration, “off” smell | Acute health effects on infants, kidneys, neurological systems |
Some regions enjoy relatively benign groundwater, but others — especially near industrial zones or heavily fertilized farmland — face elevated risk. The 2024 Texas groundwater assessment notes that ambient groundwater quality “varies among the state’s aquifers.”
Spotting Trouble: Your Home’s Clues That It’s Time to Test
You don’t always need a lab to suspect a problem. Keep an eye out for:
- White “scale” rings on glassware, shower doors, or around faucet aerators.
- Stains: rust/orange (iron), black (manganese), or brown rim in sinks and toilets.
- Cloudiness or grit in fresh glasses of water.
- Unpleasant smells or tastes — sometimes metallic or chlorine-like.
- Dry skin or dull hair, even when using “gentle” soaps.
- Frequent appliance issues (dishwashers, coffee makers, water heaters) that respond to “cleaning” more than repairs.
- High energy bills: scale build-up reduces efficiency of heaters.
- Strange reactions in sensitive users (young kids, elderly, immune-compromised) — unexplained stomach issues, allergies, etc.
When these signs show, it’s time to take water quality into your own hands — literally.
DIY Testing That Actually Tells You Something
Before you call in an expert, here’s how to get your hands dirty (not literally):
- Basic Test Strips / Kits
- Test for general hardness, chlorine, pH, total dissolved solids (TDS), iron, nitrate.
- They give ballpark numbers (e.g. “moderately hard”) and help you spot trouble zones before deeper testing.
- Portable Digital Meters
- TDS meter: gives a number (ppm) for total dissolved solids (not specific contaminants, but useful trend indicator).
- EC (electrical conductivity) meter: correlates loosely with ion content.
- Colorimeter kits or handheld units (for iron, manganese, nitrate) provide better precision than strip tests.
- Send to a Certified Lab
- For PFAS, lead, arsenic, VOCs, or when you need legal-grade proof – send samples to a state-certified or EPA-approved lab.
- Often ~ USD 50-200 depending on test panel.
- Be careful with sample collection (sterile bottles, avoid contamination, follow lab instructions precisely).
- Check Your Annual Water Quality / “Consumer Confidence Report”
- Municipal suppliers must publish it (like Katy does).
- Use it to spot contaminants already flagged for your area.
- But: it doesn’t cover your home plumbing or infiltration, and many newer contaminants (like PFAS) are only now being tracked rigorously.
Once you’ve got data, you can tailor your defense.
Tailored Solutions (Not One-Size-Fits-All)
Different problems demand different tools. Here’s a toolbox with relevant picks (and where Aquapure can quietly help).
Softening for Hardness
- Salt-based ion exchange softeners: classic solution. Swap Na⁺ for Ca²⁺/Mg²⁺ in water.
- Salt-free or template-assisted crystallization (TAC) systems: reduce scale without adding sodium (sometimes preferred for well water or people watching sodium).
- Dual-tank systems: useful when demand spikes (large households).
- Maintenance tip: clean brine tank, adjust regeneration schedule based on seasonal hardness.
Aquapure can design a custom water softener for your home’s hardness level and usage. [Link: water softener] Their model includes free installation and support, lifetime warranty, and flexible financing. Because scale damage hits appliances hard, this is often one of the best investments.
Filtration for Taste, Sediment, and Chemical Contaminants
- Sediment prefilters (5 µm or larger): protect downstream equipment from clogging.
- Carbon / activated carbon filters: excellent for chlorine, organics, certain VOCs, and some PFAS.
- KDF media: works alongside carbon to reduce metals (copper, lead) and control biological growth.
- Reverse osmosis (RO) under-sink units: for your drinking water; can eliminate many dissolved contaminants (including some PFAS, arsenic, nitrates).
- Whole-house (point-of-entry) filtration systems: when you want every faucet, shower, and machine to benefit.
- UV disinfection (if microbial contamination or well water is concern): kills bacteria and viruses, doesn’t alter chemistry.
Aquapure likewise offers home water filtration systems tailored to your household’s test results. [Link: water filtration] Their setup includes certified technician install, ongoing support, and optional financing ($0 down, pay over time).
PFAS — The “Forever” Problem
Since PFAS are persistent and tricky, removing them often demands a combination of:
- Granular activated carbon (GAC) filters dedicated for PFAS capture.
- Ion-exchange media designed for PFAS.
- Reverse osmosis systems (for drinking water taps).
- Periodic media replacement (PFAS filters saturate over time).
Because regulatory standards for PFAS are new, many water systems are scrambling to comply. That makes individual filtration even more important if you want extra protection.
Smart Design Tips
- Stage filtration: sediment → carbon → specialty media → RO (if used).
- Always oversize filters slightly — don’t run them at max flow.
- Maintain and replace media/filters on schedule.
- Install a monitor port or gauge to track pressure drops (indicator of clogging).
- Consider plumbing layout: have a bypass valve or isolation valves so service doesn’t cut off your whole house.
Combining softening (for scale) + filtration (for chemistry) gives the best protection for health, appliances, and peace of mind.
Putting It All Together — Sample Workflow for Your Home
- Baseline check with strips and TDS meter.
- Inspect fixtures and appliances for scale, stains, or frequent repair.
- Collect a lab sample with instructions if suspicious contaminants appear.
- Consult a water professional (like Aquapure) to interpret results.
- Design a solution: softener + carbon + specialized filters as needed.
- Schedule annual re-testing, especially for PFAS and lead.
Even if your water is “officially safe,” your home plumbing (pipes, fixtures, solder, seals) can introduce new elements. Your personal test results matter more than average city numbers.
Frequently Asked (Local) Questions
Is Katy’s tap water safe to drink?
Yes — the Katy water utility is repeatedly rated “Superior” by TCEQ, and recent EWG data show compliance with federal standards. However, “safe” doesn’t mean “perfect for your home” (plumbing, contaminants, personal sensitivities can still matter).
Do I need a water softener in Katy?
Likely yes — many areas around Houston/Katy have moderately hard water. Residents often report scale buildup and increased detergent usage. Even in cities with good water supply, softeners reduce wear on your dishwasher, water heater, faucets, and extend appliance life.
How much does this cost in Katy (or similar Texas suburbs)?
- Basic test strips: USD 10–30
- Lab panel (PFAS, heavy metals): USD 50–200
- Whole-house softener + install: USD 1,000–3,000 (varies by size, house usage)
- Whole-house filtration + RO add-on: USD 1,500–4,000+
- Aquapure offers $0 down financing, so you might be able to start with minimal out-of-pocket.
- Lifetime warranty (on qualifying systems) helps make that cost more comfortable in long run.
If my annual city water report is fine, is testing still necessary?
Yes — these reports average over many households and don’t capture what happens inside your plumbing or private well. They typically omit many emerging contaminants like PFAS or your lead fixtures. Always good to test at your tap.
How often should I test?
- For general parameters (hardness, pH, chlorine): every 1–2 years.
- For PFAS, lead, VOCs: every 2–5 years or after any nearby industrial work.
- After major plumbing changes, flooding, or a water main break.
Final Thoughts: Your Water, Your Responsibility
Water is intimate — it flows through your home, feeds your body, and interacts with your machines. In Texas, where mineral content, treatment regimes, and emerging contaminants like PFAS all play a role, relying on someone else’s “annual report” isn’t enough.
By testing yourself, paying attention to signs, and designing a custom system (softener + filtration) you protect not just your health, but your appliances, your wallet (less repair, better efficiency), and your peace of mind.

