City water profile

Water hardness in Hays

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

Utility-reported hardness

Not yet available

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State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 9
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.

Hays, City Of

KS2005111 · Groundwater · 21,040 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, 2022 to Dec 31, 2024

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Ellis Co Rwd 6

KS2005122 · Groundwater · 383 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: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

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

Violation history (9)

Imported violation history for Ellis Co Rwd 6
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Jan 1, 2026
Consumer Confidence Rule	Unaddressed	Oct 2, 2023
Consumer Confidence Rule	Unaddressed	Jul 1, 2023
Public Notice	Unaddressed	Nov 6, 2022
Lead and Copper Rule	Resolved	Oct 31, 2022 to Aug 20, 2024
Consumer Confidence Rule	Unaddressed	Oct 2, 2022
Lead and Copper Rule	Resolved	Dec 30, 2021 to Aug 11, 2025
Lead and Copper Rule	Unaddressed	Dec 30, 2018
Lead and Copper Rule	Unaddressed	Apr 1, 2018

Ellis Co Rwd 1c

KS2005124 · Groundwater · 340 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, 2022 to Dec 31, 2024

Violation history (3)

Imported violation history for Ellis Co Rwd 1c
Rule	Status	Period
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
Revised Total Coliform Rule	Resolved	Jul 1, 2021 to Jul 31, 2021
Chlorine	Resolved	Jul 1, 2021 to Aug 30, 2021

Countryside Estates Mhp Hays Ks, Llc

KS2005107 · Groundwater · 300 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: 0.0111 mg/L
Action level: 0.015 mg/L

74% of the listed benchmark

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

Violation history (10)

Imported violation history for Countryside Estates Mhp Hays Ks, Llc
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Jan 1, 2026
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
Public Notice	Resolved	Oct 27, 2023 to Feb 26, 2024
Consumer Confidence Rule	Unaddressed	Oct 2, 2023
Revised Total Coliform Rule	Resolved	Sep 1, 2023 to Sep 30, 2023
Consumer Confidence Rule	Unaddressed	Jul 1, 2023
Chlorine	Resolved	Jul 1, 2023 to Sep 30, 2023
Lead and Copper Rule	Unaddressed	Oct 31, 2022
TTHM	Resolved	Oct 1, 2021 to Sep 30, 2022
Total Haloacetic Acids (HAA5)	Resolved	Oct 1, 2021 to Sep 30, 2022

Buffalo Hills Park

KS2005110 · 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: 0.0065 mg/L
Action level: 0.015 mg/L

43% of the listed benchmark

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

Violation history (2)

Imported violation history for Buffalo Hills Park
Rule	Status	Period
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
Lead and Copper Rule	Resolved	Jan 1, 2025 to Feb 7, 2025

Meadow Acres Mhp Hays Ks, Llc

KS2005108 · Groundwater · 134 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: 0 mg/L
Action level: 0.015 mg/L

0% 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: 1.712 mg/L
Action level: 1.3 mg/L

132% of the listed benchmark

Monitoring period: Jul 1, 1993 to Dec 31, 1993

Violation history (12)

Imported violation history for Meadow Acres Mhp Hays Ks, Llc
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Jan 1, 2026
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
Consumer Confidence Rule	Resolved	Oct 2, 2023 to Feb 26, 2024
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Mar 13, 2024
Public Notice	Unaddressed	Feb 22, 2023
Public Notice	Unaddressed	Feb 22, 2023
Public Notice	Unaddressed	Dec 15, 2022
Revised Total Coliform Rule	Resolved	Dec 1, 2022 to Dec 31, 2022
Chlorine	Resolved	Oct 1, 2022 to Dec 31, 2022
Chlorine	Resolved	Jan 1, 2022 to Feb 23, 2022
Revised Total Coliform Rule	Resolved	Jan 1, 2022 to Jan 31, 2022
Lead and Copper Rule	Unaddressed	Oct 1, 2021

Country View Mobile Home Park

KS2005121 · Groundwater · 125 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: 0.0027 mg/L
Action level: 0.015 mg/L

18% of the listed benchmark

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

Violation history (17)

Imported violation history for Country View Mobile Home Park
Rule	Status	Period
Revised Total Coliform Rule	Resolved	May 1, 2025 to May 31, 2025
Revised Total Coliform Rule	Resolved	Jun 1, 2024 to Jun 30, 2024
Chlorine	Resolved	Jun 1, 2024 to Jun 30, 2024
Revised Total Coliform Rule	Resolved	Nov 1, 2023 to Nov 30, 2023
Revised Total Coliform Rule	Resolved	Sep 1, 2023 to Sep 30, 2023
Revised Total Coliform Rule	Resolved	Dec 1, 2022 to Dec 31, 2022
Revised Total Coliform Rule	Resolved	Nov 1, 2022 to Nov 30, 2022
Consumer Confidence Rule	Resolved	Oct 2, 2022 to Jun 30, 2023
Revised Total Coliform Rule	Resolved	Oct 1, 2022 to Oct 31, 2022
Chlorine	Resolved	Oct 1, 2022 to Dec 31, 2022
Public Notice	Resolved	Jul 20, 2022 to Nov 28, 2023
Public Notice	Resolved	Jun 22, 2022 to Nov 28, 2023
Public Notice	Resolved	Jun 22, 2022 to Nov 28, 2023
Public Notice	Resolved	Jul 31, 2021 to Nov 28, 2023
Revised Total Coliform Rule	Resolved	Jun 1, 2021 to Jun 30, 2021
Revised Total Coliform Rule	Resolved	May 1, 2021 to May 31, 2021
Chlorine	Resolved	Apr 1, 2021 to Jun 30, 2021

Sunset Valley Mhp Hays Ks, Llc

KS2005101 · Groundwater · 60 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, 2023 to Dec 31, 2023

Violation history (13)

Imported violation history for Sunset Valley Mhp Hays Ks, Llc
Rule	Status	Period
Chlorine	Resolved	Feb 1, 2025 to Feb 28, 2025
Revised Total Coliform Rule	Resolved	Feb 1, 2025 to Feb 28, 2025
Public Notice	Unaddressed	Nov 25, 2023
Public Notice	Unaddressed	Oct 28, 2023
Consumer Confidence Rule	Resolved	Oct 2, 2023 to Feb 26, 2024
Revised Total Coliform RuleHealth-based	Resolved	Sep 9, 2023 to Nov 7, 2023
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Mar 13, 2024
Public Notice	Unaddressed	Mar 12, 2023
Nitrate	Resolved	Jan 1, 2023 to Dec 31, 2023
Lead and Copper Rule	Unaddressed	Oct 31, 2022
Total Haloacetic Acids (HAA5)	Resolved	Oct 1, 2021 to Sep 30, 2022
TTHM	Resolved	Oct 1, 2021 to Sep 30, 2022
Atrazine	Resolved	Jan 1, 2021 to Dec 31, 2021

Hays Suburban Estates

KS2005116 · Groundwater · 38 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: 0.0044 mg/L
Action level: 0.015 mg/L

29% of the listed benchmark

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

Nitrate

EPA SDWIS reported health-based violation

Reported violation

Reported level: 11 MG/L
Maximum contaminant level: 10 MG/L

110% of the listed benchmark

Monitoring period: Jan 1, 2026 to Mar 31, 2026

Violation history (12)

Imported violation history for Hays Suburban Estates
Rule	Status	Period
NitrateHealth-based	Archived	Jan 1, 2026 to Mar 31, 2026
NitrateHealth-based	Archived	Oct 1, 2025 to Dec 31, 2025
NitrateHealth-based	Archived	Jul 1, 2025 to Sep 30, 2025
Lead and Copper Rule	Resolved	Jan 1, 2025 to Feb 13, 2025
NitrateHealth-based	Resolved	Apr 1, 2024 to Jun 30, 2024
Consumer Confidence Rule	Unaddressed	Oct 2, 2023
NitrateHealth-based	Resolved	Oct 1, 2023 to Dec 31, 2023
Consumer Confidence Rule	Unaddressed	Jul 1, 2023
Consumer Confidence Rule	Resolved	Oct 2, 2022 to Jul 21, 2022
Revised Total Coliform Rule	Resolved	Sep 1, 2022 to Sep 30, 2022
Chlorine	Resolved	Jul 1, 2022 to Sep 30, 2022
Lead and Copper Rule	Resolved	Dec 30, 2021 to Jul 15, 2021

City summary

What the indexed records say

Hays has 1 published ZIP profile across Ellis County. The regional-evidence median is 707 PPM. The city does not meet the stricter comparison standard.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community. 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 hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 11.4 miles
Profiles with evidence: 1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Aug 1, 2018 to Aug 1, 2018.

ZIP directory

Water reports in Hays

Open a ZIP for site-level provenance and measurements.

ZIP code

67601

Very Hard

707 PPM

Nearest site: 11.4 mi
Confidence: Low

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 Kansas communities

Ellis

Ellis County

483 PPM median

Schoenchen

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707 PPM median

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707 PPM median

Gorham

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— No median

Albert

Rush County

707 PPM median

Bison

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707 PPM median

Search all 485 Kansas cities →

Questions people ask

About water in Hays

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.