Colfax Tap Water Quality Report
Colfax's water has 8 MCL violations on record — an enforceable limit was exceeded, which is a different thing from a result sitting above a health goal.
Utilities
4 Utilities
People Served
421
MCL Violations
9
Last Updated
Is Colfax Tap Water Safe to Drink?
Colfax's water has 8 MCL violations on record at one of its 4 water systems. A violation means an enforceable limit was actually exceeded, which is a different thing from a result sitting above a health goal — it is the case where the number genuinely matters, and a certified filter matched to the finding is worth considering.
The data below shows test results from 4 water utilities serving 421 people in the Colfax area. Water quality testing is conducted regularly and reported to the EPA. This report was last updated 2022-08-15.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Wisconsin
Colfax Water Service Areas
What these numbers actually mean for Colfax, WI
We read Colfax, WI’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.
- 4 contaminants above EPA health goals at its most-affected system
- 358 results across 4 water systems
- No PFAS results on record
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Recommended Water Filters for Colfax
Based on Colfax's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Whirlpool Corporation
W11569861
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.52 gpm
Removes 22 contaminants:
+17 more
Atrazine, Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Styrene, Tetrachloroethylene, Toxaphene, Trichloroethylene, Turbidity
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
Verify Your Water Quality with Independent Testing
With 4 contaminants above EPA health guidelines, independent laboratory testing provides a second opinion and can track changes over time.
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.
With 4 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Colfax's water readings can explain
We publish a city-level hardness figure for Colfax, 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 Colfax? Public-water results do not apply to private wells. See Dunn County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
What a water softener costs for Colfax's water
Colfax's tap water measures 13.3 grains per gallon (228.2 mg/L) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 13.3 gpg water in Colfax — 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.
Frequently Asked Questions About Colfax Tap Water
Colfax's water has 8 MCL violations on record at one of its 4 water systems. A violation means an enforceable federal limit was actually exceeded, which is a different thing from a result sitting above a health goal — it is the case where the number genuinely matters, and a filter certified for the contaminant involved is worth considering.
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