North Liberty Tap Water Quality Report
North Liberty's water has 4 contaminants above EPA MCLGs. We recommend using a certified water filter.
Water system
NORTH LIBERTY WATER SUPPLY
1 other system also serves parts of North Liberty. See its figures
People Served
20,491
Health-based violations since 2020
0
NORTH LIBERTY WATER SUPPLY. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Oct 2025 · NORTH LIBERTY WATER SUPPLY
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is North Liberty Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: North Liberty's water has 4 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in North Liberty's water.
NORTH LIBERTY WATER SUPPLY, North Liberty's water system, serves 20,491 people. 1 other system also serves parts of North Liberty. Each system's results are listed under its own name, never added to NORTH LIBERTY WATER SUPPLY's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for NORTH LIBERTY WATER SUPPLY is from Oct 2025.
In EPA's 2023–2026 UCMR 5 testing, NORTH LIBERTY WATER SUPPLY measured lithium at up to 78 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 Iowa
North Liberty Water Service Areas
What these numbers actually mean for North Liberty, IA
We read North Liberty, IA’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 MCLGs and 4 contaminants with an EPA health goal detected in some samples (no level on file)
- 75 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for North Liberty
Based on North Liberty'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
Verify Your Water Quality with Independent Testing
With 4 contaminants above EPA MCLGs and 4 contaminants with an EPA health goal detected in some samples (no level on file), 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 North Liberty's water readings can explain
Utility-reported data for North Liberty includes a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for North Liberty, 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 North Liberty? Public-water results do not apply to private wells. See Johnson County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in North Liberty
North Liberty's tap water measures 2.9 grains per gallon (49.0 mg/L) — soft on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for 2.9 gpg water in North Liberty — 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 Iowa as a whole, read water softener cost in Iowa — priced against the plumber wage published for the state.
Frequently Asked Questions About North Liberty Tap Water
North Liberty's water has 4 contaminants above EPA MCLGs. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in North Liberty's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach NORTH LIBERTY WATER SUPPLY. For a problem with your water now (discolored water, no water, low pressure, a leak), contact NORTH LIBERTY WATER SUPPLY directly.
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