Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Hays, KS 67601
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Ellis County.
Historical measurement record needs context
- Largest possible serving system
- Hays, City Of
- Source water
- Groundwater
- County
- Ellis County
- Profile updated
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 →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
9 systems
Serves 21,040 people system-wide
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
- 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
- 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)
| 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
- 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)
| 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
- 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)
| 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
- 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)
| 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
- 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
- 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)
| 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
- 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)
| 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
- 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)
| 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
- 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 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)
| 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 |
Hardness meter
What does nearby environmental evidence show?
707
PPM as CaCO₃
Very Hard
PPM
707
GPG
41.3
Regional environmental evidence
USGS hardness classification scale
707 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
707
mg/L as CaCO₃ equivalent
Grains per gallon
41.3
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
1
Nearest site
11.4 mi
Observation range
Aug 1, 2018–Aug 1, 2018
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: 15S 18W 26CDDA01 (Well).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 67601 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Hays median
707 PPM
About the same1 indexed ZIP readings · Range 707–707 PPM
Kansas median
291 PPM
416 PPM higher303 indexed ZIP readings · Range 70.9–796 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
A reported action-level record needs context. Check its monitoring period and the utility's current report.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
Water questions for Hays
Is tap water safe in Hays?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.