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City water profile

Water hardness in Inver Grove Heights

Find official utility reports, understand hardness, and check the water system serving your home in Inver Grove Heights, Minnesota.

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
1
Active health records
0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →
Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Inver Grove Heights

MN1190014 · Groundwater · 34,189 people served system-wide

A municipal system, in-state city, and served county all agree with this Census ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (3)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.003 mg/L
Action level
0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Combined Radium (-226 and -228)

EPA SDWIS reported health-based violation

Reported violation
Reported level
2.9 PCI/L
Maximum contaminant level
5 PCI/L

58% of the listed benchmark

Monitoring period: Oct 1, 2025 to Dec 31, 2025

Gross Alpha, Excl. Radon and U

EPA SDWIS reported health-based violation

Reported violation
Reported level
13.1 PCI/L
Maximum contaminant level
15 PCI/L

87% of the listed benchmark

Monitoring period: Oct 1, 2025 to Dec 31, 2025

Violation history (18)
Imported violation history for Inver Grove Heights
RuleStatusPeriod
Combined Radium (-226 and -228)Health-basedArchivedOct 1, 2025 to Dec 31, 2025
Gross Alpha, Excl. Radon and UHealth-basedArchivedOct 1, 2025 to Dec 31, 2025
Combined Radium (-226 and -228)Health-basedArchivedJul 1, 2025 to Sep 30, 2025
Gross Alpha, Excl. Radon and UHealth-basedArchivedJul 1, 2025 to Sep 30, 2025
Combined Radium (-226 and -228)Health-basedArchivedApr 1, 2025 to Jun 30, 2025
Gross Alpha, Excl. Radon and UHealth-basedArchivedApr 1, 2025 to Jun 30, 2025
Gross Alpha, Excl. Radon and UHealth-basedArchivedJan 1, 2025 to Mar 31, 2025
Combined Radium (-226 and -228)Health-basedArchivedJan 1, 2025 to Mar 31, 2025
Combined Radium (-226 and -228)Health-basedArchivedOct 1, 2024 to Dec 31, 2024
Gross Alpha, Excl. Radon and UHealth-basedArchivedOct 1, 2024 to Dec 31, 2024
Combined Radium (-226 and -228)Health-basedArchivedJul 1, 2024 to Sep 30, 2024
Combined Radium (-226 and -228)Health-basedArchivedApr 1, 2024 to Jun 30, 2024
Combined Radium (-226 and -228)Health-basedArchivedJan 1, 2024 to Mar 31, 2024
Combined Radium (-226 and -228)Health-basedArchivedOct 1, 2023 to Dec 31, 2023
Combined Radium (-226 and -228)Health-basedArchivedJul 1, 2023 to Sep 30, 2023
Combined Radium (-226 and -228)Health-basedArchivedApr 1, 2023 to Jun 30, 2023
Combined Radium (-226 and -228)Health-basedArchivedJan 1, 2023 to Mar 31, 2023
Combined Radium (-226 and -228)Health-basedArchivedOct 1, 2022 to Dec 31, 2022

City summary

What the indexed records say

Inver Grove Heights has 2 published ZIP profiles across Dakota County. The regional-evidence median is 336 PPM. The city does not meet the stricter comparison standard.

The 336–336.5 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
2.5 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Jul 14, 2016 to Aug 30, 2018.

ZIP directory

Water reports in Inver Grove Heights

Open a ZIP for site-level provenance and measurements.

ZIP code

55076

Very Hard

336.5 PPM

Nearest site
2.5 mi
Confidence
Low

View full ZIP evidence →

ZIP code

55077

Very Hard

336 PPM

Nearest site
2.5 mi
Confidence
Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Inver Grove Heights

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.