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Willis Tap Water Quality Report
Willis's water has 1 contaminant above EPA MCLGs. Consider using a certified water filter for additional protection.
Other systems listed for Willis with results above guidelines: BEE CREEK ESTATES (1 above guidelines), ROGERS ROAD WATER SYSTEM (1 above guidelines)
People Served
6,378
Health-based violations since 2020
2
CITY OF WILLIS. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Dec 2025 · CITY OF WILLIS
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Willis Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Willis's water has 1 contaminant above EPA health-based guidelines (MCLGs).
CITY OF WILLIS, Willis's water system, serves 6,378 people. 2 other systems are listed for Willis. Each system's results are listed under its own name, never added to CITY OF WILLIS's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CITY OF WILLIS is from Dec 2025.
In EPA's 2023–2026 UCMR 5 testing, CITY OF WILLIS measured lithium at up to 199 µg/L, which EPA counts as above its health reference level of 10 µg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Texas
Willis Water Service Areas
What these numbers actually mean for Willis, TX
We read Willis, TX’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 1 contaminant above EPA MCLGs, 10 contaminants with an EPA health goal detected in some samples (no level on file) and 2 health-based EPA violations that began after the latest compliance result on file
- 220 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Willis's water
CITY OF WILLIS
PWSID TX1700003
CITY OF WILLIS reported 0.18 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
ROGERS ROAD WATER SYSTEM
PWSID TX1700590
ROGERS ROAD WATER SYSTEM reported 0.5 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
BEE CREEK ESTATES
PWSID TX1700685
BEE CREEK ESTATES reported 0.47 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
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Recommended Water Filters for Willis
Based on Willis's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Solventum Purification Inc.
3MRO401
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
Solventum Purification Inc.
3MRO301
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What Willis's water readings can explain
Utility-reported data for Willis includes iron, manganese and sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for Willis, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Willis? Public-water results do not apply to private wells. See Montgomery County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Willis
Willis's tap water measures 2.6 grains per gallon (44.7 mg/L) — soft on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for 2.6 gpg water in Willis — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For Texas as a whole, read water softener cost in Texas — priced against the plumber wage published for the state.
Frequently Asked Questions About Willis Tap Water
Willis's water has 1 contaminant above EPA MCLGs. We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. EPA records 2 health-based violations for CITY OF WILLIS that began after its latest compliance result on file (Jun 2022): Treatment Technique, Corrective/Expedited Actions (RTCR) (Revised Total Coliform Rule), which began on February 10, 2026; Maximum Contaminant Level Violation, E. coli (RTCR) (Revised Total Coliform Rule), which began on September 1, 2025. Every such result predates them; its later EPA UCMR 5 results (Dec 2025) screen for unregulated contaminants and cannot show the water met this standard, so this page does not call the water safe.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CITY OF WILLIS. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CITY OF WILLIS directly.
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