Markesan Tap Water Quality Report
Markesan's water quality record shows 11 results on file for MARKESAN WATERWORKS, none above EPA's health goals or legal limits.
Water system
MARKESAN WATERWORKS
People Served
1,496
Health-based violations since 2020
0
MARKESAN WATERWORKS. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Is Markesan Tap Water Safe to Drink?
Markesan's tap water has 11 results on file for MARKESAN WATERWORKS, none above EPA's health goals or legal limits. On that record the water is considered safe to drink, though some people may still prefer filtered water for taste or extra protection.
MARKESAN WATERWORKS, Markesan's water system, serves 1,496 people. Water quality testing is conducted regularly and reported to the EPA.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Wisconsin
What these numbers actually mean for Markesan, Wisconsin
We read Markesan, Wisconsin’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.
- No result above EPA's health goals or legal limits
- 11 results on file
- No PFAS results on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Markesan's water
MARKESAN WATERWORKS
PWSID WI4240218
MARKESAN WATERWORKS reported 0.11 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
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General-Purpose Water Filters for Markesan
Markesan's results show no result above EPA's health goals or legal limits, so these are general-purpose NSF/ANSI 53 certified filters, not chosen for any contaminant.
Pentair Residential Filtration, LLC
Everpure Residential H-300-NXT
NSF Certified:
Capacity
3001 gal
Filter Life
10 mo
Flow Rate
0.5 gpm
Removes 5 contaminants:
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
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Verify Your Water at Your Own Tap
This system met every enforceable federal limit in its latest published results. Those are taken in the distribution system, not at your tap — independent testing is what covers your own plumbing and the substances nobody sampled.
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 Markesan's water readings can explain
Utility-reported data for Markesan includes iron and sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for Markesan, 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 Markesan? Public-water results do not apply to private wells. See Green Lake County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Markesan
Markesan's tap water has an estimated 13.4 grains per gallon (229.0 mg/L, county sampling in Green Lake County) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 13.4 gpg water in Markesan — 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 Wisconsin as a whole, read water softener cost in Wisconsin — priced against the plumber wage published for the state.
Frequently Asked Questions About Markesan Tap Water
Markesan's tap water has 11 results on file for MARKESAN WATERWORKS, none above EPA's health goals or legal limits. On that record the water is considered safe to drink, though some people may still prefer filtered water for taste or extra protection.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach MARKESAN WATERWORKS. For a problem with your water now (discolored water, no water, low pressure, a leak), contact MARKESAN WATERWORKS directly.
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