City water profile

Water hardness in Zionsville

Find official utility reports, understand hardness, and check the water system serving your home in Zionsville, Indiana.

Utility-reported hardness

Not yet available

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State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 3
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.

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Convert a hardness result →Test your tap →

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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.

Citizens Water - Whitestown

IN5206014 · Surface water · 5,880 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (2)

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: 3.3e-4 mg/L
Action level: 0.015 mg/L

2% of the listed benchmark

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

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 1.482 mg/L
Action level: 1.3 mg/L

114% of the listed benchmark

Monitoring period: Jan 1, 2011 to Dec 31, 2011

Violation history (1)

Imported violation history for Citizens Water - Whitestown
Rule	Status	Period
Consumer Confidence Rule	Resolved	Jul 1, 2025 to Nov 10, 2025

Pine Ridge

IN5206004 · Groundwater · 135 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

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: 0.0046 mg/L
Action level: 0.015 mg/L

31% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (1)

Imported violation history for Pine Ridge
Rule	Status	Period
Lead and Copper Rule	Resolved	Jan 1, 2024 to Jan 28, 2025

Zionsville Mhp Trust

IN5206002 · Groundwater · 57 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

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 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

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

Violation history (178)

Imported violation history for Zionsville Mhp Trust
Rule	Status	Period
Lead and Copper Rule	Resolved	Jan 1, 2026 to Mar 26, 2026
Radium-226	Archived	Jan 1, 2026 to Mar 31, 2026
Radium-228	Archived	Jan 1, 2026 to Mar 31, 2026
Gross Alpha, Excl. Radon and U	Archived	Jan 1, 2026 to Mar 31, 2026
Consumer Confidence Rule	Resolved	Oct 1, 2025 to Mar 30, 2026
Revised Total Coliform Rule	Resolved	Jul 1, 2025 to Jul 31, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2025 to Mar 30, 2026
Revised Total Coliform Rule	Resolved	Jun 1, 2025 to Jun 30, 2025
Revised Total Coliform Rule	Resolved	May 1, 2025 to May 31, 2025
Revised Total Coliform Rule	Resolved	Apr 1, 2025 to Apr 30, 2025
Revised Total Coliform Rule	Resolved	Mar 1, 2025 to Mar 31, 2025
Revised Total Coliform Rule	Resolved	Feb 1, 2025 to Feb 28, 2025
Endrin	Archived	Jan 1, 2025 to Dec 31, 2025
Methoxychlor	Archived	Jan 1, 2025 to Dec 31, 2025
Toxaphene	Archived	Jan 1, 2025 to Dec 31, 2025
Glyphosate	Archived	Jan 1, 2025 to Dec 31, 2025
OXAMYL	Archived	Jan 1, 2025 to Dec 31, 2025
Di(2-ethylhexyl) phthalate	Archived	Jan 1, 2025 to Dec 31, 2025
Dinoseb	Archived	Jan 1, 2025 to Dec 31, 2025
Hexachlorocyclopentadiene	Archived	Jan 1, 2025 to Dec 31, 2025
Carbofuran	Archived	Jan 1, 2025 to Dec 31, 2025
Atrazine	Archived	Jan 1, 2025 to Dec 31, 2025
Heptachlor	Archived	Jan 1, 2025 to Dec 31, 2025
2,4-D	Archived	Jan 1, 2025 to Dec 31, 2025
2,4,5-TP	Archived	Jan 1, 2025 to Dec 31, 2025
Pentachlorophenol	Archived	Jan 1, 2025 to Dec 31, 2025
ETHYLENE DIBROMIDE	Archived	Jan 1, 2025 to Dec 31, 2025
Chlordane	Archived	Jan 1, 2025 to Dec 31, 2025
Simazine	Archived	Jan 1, 2025 to Dec 31, 2025
Picloram	Archived	Jan 1, 2025 to Dec 31, 2025
BHC-GAMMA	Archived	Jan 1, 2025 to Dec 31, 2025
Endothall	Archived	Jan 1, 2025 to Dec 31, 2025
Benzo(a)pyrene	Archived	Jan 1, 2025 to Dec 31, 2025
1,2-DIBROMO-3-CHLOROPROPANE	Archived	Jan 1, 2025 to Dec 31, 2025
Dalapon	Archived	Jan 1, 2025 to Dec 31, 2025
HEXACHLOROBENZENE	Archived	Jan 1, 2025 to Dec 31, 2025
Diquat	Archived	Jan 1, 2025 to Dec 31, 2025
Di(2-ethylhexyl) adipate	Archived	Jan 1, 2025 to Dec 31, 2025
Heptachlor epoxide	Archived	Jan 1, 2025 to Dec 31, 2025
Revised Total Coliform Rule	Resolved	Jan 1, 2025 to Jan 31, 2025
Public Notice	Resolved	Jan 1, 2025 to Oct 7, 2025
LASSO	Archived	Jan 1, 2025 to Dec 31, 2025
Revised Total Coliform Rule	Resolved	Dec 1, 2024 to Dec 31, 2024
Revised Total Coliform Rule	Resolved	Nov 1, 2024 to Nov 30, 2024
LEAD AND COPPER RULE REVISIONS	Resolved	Oct 17, 2024 to Oct 7, 2025
LEAD AND COPPER RULE REVISIONSHealth-based	Resolved	Oct 17, 2024 to Oct 7, 2025
Consumer Confidence Rule	Resolved	Oct 10, 2024 to Mar 30, 2026
Revised Total Coliform Rule	Resolved	Oct 1, 2024 to Oct 31, 2024
Revised Total Coliform Rule	Resolved	Sep 1, 2024 to Sep 30, 2024
Revised Total Coliform Rule	Resolved	Aug 1, 2024 to Aug 31, 2024
Consumer Confidence Rule	Resolved	Jul 1, 2024 to Mar 30, 2026
Revised Total Coliform Rule	Resolved	Jul 1, 2024 to Jul 31, 2024
Revised Total Coliform Rule	Resolved	Jun 1, 2024 to Jun 30, 2024
Revised Total Coliform Rule	Resolved	May 1, 2024 to May 31, 2024
Revised Total Coliform Rule	Resolved	Apr 1, 2024 to Apr 30, 2024
Revised Total Coliform Rule	Resolved	Mar 1, 2024 to Mar 31, 2024
Revised Total Coliform Rule	Resolved	Feb 1, 2024 to Feb 29, 2024
Revised Total Coliform Rule	Resolved	Jan 1, 2024 to Jan 31, 2024
Lead and Copper Rule	Resolved	Jan 1, 2024 to Sep 26, 2025
1,2,4-Trichlorobenzene	Archived	Jan 1, 2024 to Dec 31, 2024
o-Dichlorobenzene	Archived	Jan 1, 2024 to Dec 31, 2024
p-Dichlorobenzene	Archived	Jan 1, 2024 to Dec 31, 2024
Vinyl chloride	Archived	Jan 1, 2024 to Dec 31, 2024
trans-1,2-Dichloroethylene	Archived	Jan 1, 2024 to Dec 31, 2024
1,2-Dichloroethane	Archived	Jan 1, 2024 to Dec 31, 2024
Tetrachloroethylene	Archived	Jan 1, 2024 to Dec 31, 2024
CHLOROBENZENE	Archived	Jan 1, 2024 to Dec 31, 2024
Benzene	Archived	Jan 1, 2024 to Dec 31, 2024
Ethylbenzene	Archived	Jan 1, 2024 to Dec 31, 2024
Arsenic	Archived	Jan 1, 2024 to Dec 31, 2024
Barium	Archived	Jan 1, 2024 to Dec 31, 2024
Cadmium	Archived	Jan 1, 2024 to Dec 31, 2024
Chromium	Archived	Jan 1, 2024 to Dec 31, 2024
CYANIDE	Archived	Jan 1, 2024 to Dec 31, 2024
Fluoride	Archived	Jan 1, 2024 to Dec 31, 2024
Nickel	Archived	Jan 1, 2024 to Dec 31, 2024
Thallium, Total	Archived	Jan 1, 2024 to Dec 31, 2024
Nitrate	Resolved	Jan 1, 2024 to Dec 31, 2024
1,2-Dichloropropane	Archived	Jan 1, 2024 to Dec 31, 2024
Mercury	Archived	Jan 1, 2024 to Dec 31, 2024
Styrene	Archived	Jan 1, 2024 to Dec 31, 2024
Antimony, Total	Archived	Jan 1, 2024 to Dec 31, 2024
1,1-Dichloroethylene	Archived	Jan 1, 2024 to Dec 31, 2024
Carbon tetrachloride	Archived	Jan 1, 2024 to Dec 31, 2024
1,1,1-Trichloroethane	Archived	Jan 1, 2024 to Dec 31, 2024
DICHLOROMETHANE	Archived	Jan 1, 2024 to Dec 31, 2024
Xylenes, Total	Archived	Jan 1, 2024 to Dec 31, 2024
Trichloroethylene	Archived	Jan 1, 2024 to Dec 31, 2024
1,1,2-Trichloroethane	Archived	Jan 1, 2024 to Dec 31, 2024
Toluene	Archived	Jan 1, 2024 to Dec 31, 2024
Beryllium, Total	Archived	Jan 1, 2024 to Dec 31, 2024
Selenium	Archived	Jan 1, 2024 to Dec 31, 2024
cis-1,2-Dichloroethylene	Archived	Jan 1, 2024 to Dec 31, 2024
Revised Total Coliform Rule	Resolved	Dec 1, 2023 to Dec 31, 2023
Revised Total Coliform Rule	Resolved	Nov 1, 2023 to Nov 30, 2023
Revised Total Coliform RuleHealth-based	Resolved	Oct 21, 2023 to Nov 14, 2025
Revised Total Coliform Rule	Resolved	Oct 1, 2023 to Oct 31, 2023
Revised Total Coliform RuleHealth-based	Resolved	Sep 16, 2023 to Nov 12, 2025
E. COLI	Resolved	Sep 15, 2023 to Aug 25, 2025
Revised Total Coliform Rule	Resolved	Sep 1, 2023 to Sep 30, 2023
E. COLI	Resolved	Aug 12, 2023 to Aug 25, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Mar 30, 2026
Gross Alpha, Excl. Radon and U	Archived	Jan 1, 2023 to Mar 31, 2023
Lead and Copper Rule	Resolved	Jan 1, 2023 to Sep 26, 2025
Consumer Confidence Rule	Resolved	Jan 1, 2023 to Mar 30, 2026
Radium-226	Archived	Jan 1, 2023 to Mar 31, 2023
Radium-228	Archived	Jan 1, 2023 to Mar 31, 2023
Nitrate	Resolved	Jan 1, 2023 to Dec 31, 2023
Lead and Copper Rule	Resolved	Oct 1, 2022 to Sep 26, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Sep 21, 2022
BHC-GAMMA	Archived	Jan 1, 2022 to Dec 31, 2022
Endrin	Archived	Jan 1, 2022 to Dec 31, 2022
Toxaphene	Archived	Jan 1, 2022 to Dec 31, 2022
Dalapon	Archived	Jan 1, 2022 to Dec 31, 2022
Diquat	Archived	Jan 1, 2022 to Dec 31, 2022
Glyphosate	Archived	Jan 1, 2022 to Dec 31, 2022
Di(2-ethylhexyl) adipate	Archived	Jan 1, 2022 to Dec 31, 2022
OXAMYL	Archived	Jan 1, 2022 to Dec 31, 2022
Di(2-ethylhexyl) phthalate	Archived	Jan 1, 2022 to Dec 31, 2022
Hexachlorocyclopentadiene	Archived	Jan 1, 2022 to Dec 31, 2022
Carbofuran	Archived	Jan 1, 2022 to Dec 31, 2022
2,4-D	Archived	Jan 1, 2022 to Dec 31, 2022
Pentachlorophenol	Archived	Jan 1, 2022 to Dec 31, 2022
Chlordane	Archived	Jan 1, 2022 to Dec 31, 2022
2,4,5-TP	Archived	Jan 1, 2022 to Dec 31, 2022
HEXACHLOROBENZENE	Archived	Jan 1, 2022 to Dec 31, 2022
Methoxychlor	Archived	Jan 1, 2022 to Dec 31, 2022
Atrazine	Archived	Jan 1, 2022 to Dec 31, 2022
Picloram	Archived	Jan 1, 2022 to Dec 31, 2022
Heptachlor	Archived	Jan 1, 2022 to Dec 31, 2022
ETHYLENE DIBROMIDE	Archived	Jan 1, 2022 to Dec 31, 2022
Simazine	Archived	Jan 1, 2022 to Dec 31, 2022
Benzo(a)pyrene	Archived	Jan 1, 2022 to Dec 31, 2022
Heptachlor epoxide	Archived	Jan 1, 2022 to Dec 31, 2022
Endothall	Archived	Jan 1, 2022 to Dec 31, 2022
1,2-DIBROMO-3-CHLOROPROPANE	Archived	Jan 1, 2022 to Dec 31, 2022
Dinoseb	Archived	Jan 1, 2022 to Dec 31, 2022
LASSO	Archived	Jan 1, 2022 to Dec 31, 2022
Lead and Copper Rule	Resolved	Oct 1, 2021 to Sep 26, 2025
Revised Total Coliform RuleHealth-based	Resolved	Aug 20, 2021 to Nov 14, 2025
E. COLI	Resolved	Jul 15, 2021 to Jul 30, 2021
1,2,4-Trichlorobenzene	Archived	Jan 1, 2021 to Dec 31, 2021
Xylenes, Total	Archived	Jan 1, 2021 to Dec 31, 2021
p-Dichlorobenzene	Archived	Jan 1, 2021 to Dec 31, 2021
1,1-Dichloroethylene	Archived	Jan 1, 2021 to Dec 31, 2021
1,1,1-Trichloroethane	Archived	Jan 1, 2021 to Dec 31, 2021
1,2-Dichloropropane	Archived	Jan 1, 2021 to Dec 31, 2021
Trichloroethylene	Archived	Jan 1, 2021 to Dec 31, 2021
1,1,2-Trichloroethane	Archived	Jan 1, 2021 to Dec 31, 2021
Benzene	Archived	Jan 1, 2021 to Dec 31, 2021
Toluene	Archived	Jan 1, 2021 to Dec 31, 2021
Ethylbenzene	Archived	Jan 1, 2021 to Dec 31, 2021
Barium	Archived	Jan 1, 2021 to Dec 31, 2021
Cadmium	Archived	Jan 1, 2021 to Dec 31, 2021
Chromium	Archived	Jan 1, 2021 to Dec 31, 2021
Fluoride	Archived	Jan 1, 2021 to Dec 31, 2021
Antimony, Total	Archived	Jan 1, 2021 to Dec 31, 2021
Tetrachloroethylene	Archived	Jan 1, 2021 to Dec 31, 2021
Mercury	Archived	Jan 1, 2021 to Dec 31, 2021
cis-1,2-Dichloroethylene	Archived	Jan 1, 2021 to Dec 31, 2021
Vinyl chloride	Archived	Jan 1, 2021 to Dec 31, 2021
CHLOROBENZENE	Archived	Jan 1, 2021 to Dec 31, 2021
Arsenic	Archived	Jan 1, 2021 to Dec 31, 2021
Styrene	Archived	Jan 1, 2021 to Dec 31, 2021
Selenium	Archived	Jan 1, 2021 to Dec 31, 2021
Thallium, Total	Archived	Jan 1, 2021 to Dec 31, 2021
Beryllium, Total	Archived	Jan 1, 2021 to Dec 31, 2021
Carbon tetrachloride	Archived	Jan 1, 2021 to Dec 31, 2021
o-Dichlorobenzene	Archived	Jan 1, 2021 to Dec 31, 2021
trans-1,2-Dichloroethylene	Archived	Jan 1, 2021 to Dec 31, 2021
DICHLOROMETHANE	Archived	Jan 1, 2021 to Dec 31, 2021
CYANIDE	Archived	Jan 1, 2021 to Dec 31, 2021
1,2-Dichloroethane	Archived	Jan 1, 2021 to Dec 31, 2021
Nickel	Archived	Jan 1, 2021 to Dec 31, 2021
Consumer Confidence Rule	Addressed	Oct 1, 2014
Consumer Confidence Rule	Addressed	Jul 1, 2014
Lead and Copper Rule	Addressed	Jan 1, 2014
Consumer Confidence Rule	Addressed	Jul 1, 2013

City summary

What the indexed records say

Zionsville has 2 published ZIP profiles across Hamilton County and Boone County. The regional-evidence median is 248 PPM. The city does not meet the stricter comparison standard.

The 248–248 PPM range shows how much the available ZIP estimates vary within the city label.

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: 18.7 miles
Profiles with evidence: 2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: Jul 17, 2018 to Jan 5, 2021.

ZIP directory

Water reports in Zionsville

Open a ZIP for site-level provenance and measurements.

ZIP code

46069

Very Hard

248 PPM

Nearest site: 18.7 mi
Confidence: Moderate

View full ZIP evidence →

ZIP code

46077

Very Hard

248 PPM

Nearest site: 7.8 mi
Confidence: Moderate

View full ZIP evidence →

Practical next steps

Move from index to evidence

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

Continue comparing

Other Indiana communities

Arcadia

Hamilton County

355 PPM median

Atlanta

Hamilton County

355 PPM median

Carmel

Hamilton County

340 PPM median

Cicero

Hamilton County

352 PPM median

Noblesville

Hamilton County

371 PPM median

Westfield

Hamilton County

340 PPM median

Search all 386 Indiana cities →

Questions people ask

About water in Zionsville

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.