Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Cedar Lake, IN 46303
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Lake County.
No active health-based violation reported
- Largest possible serving system
- Cedar Lake Water Works
- Source water
- Groundwater
- County
- Lake 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
8 systems
Serves 4,600 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.
Cedar Lake Water Works
IN5245047 · Groundwater · 4,600 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
- 0.0011 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (53)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Dec 5, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Dec 5, 2025 |
| Groundwater RuleHealth-based | Resolved | Apr 29, 2025 to Aug 27, 2025 |
| Consumer Confidence Rule | Resolved | Oct 7, 2024 to Feb 25, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Sep 10, 2024 |
| Radium-226 | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| Radium-228 | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| Gross Alpha, Excl. Radon and U | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| TTHM | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2024 to Dec 31, 2024 |
| CYANIDE | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Mercury | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Nickel | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Antimony, Total | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Thallium, Total | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Beryllium, Total | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Selenium | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Endrin | Archived | Jan 1, 2024 to Dec 31, 2024 |
| BHC-GAMMA | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Toxaphene | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Glyphosate | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Di(2-ethylhexyl) adipate | Archived | Jan 1, 2024 to Dec 31, 2024 |
| OXAMYL | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Simazine | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Picloram | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Atrazine | Archived | Jan 1, 2024 to Dec 31, 2024 |
| LASSO | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Heptachlor epoxide | Archived | Jan 1, 2024 to Dec 31, 2024 |
| 2,4-D | Archived | Jan 1, 2024 to Dec 31, 2024 |
| 2,4,5-TP | Archived | Jan 1, 2024 to Dec 31, 2024 |
| 1,2-DIBROMO-3-CHLOROPROPANE | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Barium | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Chlordane | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Fluoride | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Arsenic | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Dalapon | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Di(2-ethylhexyl) phthalate | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Dinoseb | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Chromium | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Cadmium | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Methoxychlor | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Diquat | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2024 |
| Endothall | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Heptachlor | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Benzo(a)pyrene | Archived | Jan 1, 2024 to Dec 31, 2024 |
| HEXACHLOROBENZENE | Archived | Jan 1, 2024 to Dec 31, 2024 |
| ETHYLENE DIBROMIDE | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Carbofuran | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Hexachlorocyclopentadiene | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Pentachlorophenol | Archived | Jan 1, 2024 to Dec 31, 2024 |
| Revised Total Coliform Rule | Resolved | Feb 1, 2023 to Feb 28, 2023 |
| TTHM | Archived | Jan 1, 2023 to Dec 31, 2023 |
Lakeshore Subdivision Association, Inc.
IN5245053 · Groundwater · 265 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
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | Resolved | Jan 1, 2022 to Oct 17, 2024 |
Fairway Regional Water District
IN5245009 · Groundwater · 210 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 (5)
| Rule | Status | Period |
|---|---|---|
| Groundwater Rule | Unaddressed | Aug 23, 2025 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Nov 16, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Nov 16, 2024 |
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Aug 2, 2024 |
| Consumer Confidence Rule | Resolved | Jul 1, 2022 to Aug 17, 2022 |
Cedar Lake Mobile Home Park
IN5245005 · Groundwater · 200 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
- 1.0e-4 mg/L
- Action level
- 0.015 mg/L
1% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Cedar Lake Bible Conference Grounds
IN5245055 · Groundwater · 150 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
- 0.0046 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)
| Rule | Status | Period |
|---|---|---|
| Revised Total Coliform Rule | Resolved | Feb 1, 2021 to Feb 28, 2021 |
Noble Oaks Subdivision Water Association
IN5245054 · Groundwater · 70 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
- 0.0013 mg/L
- Action level
- 0.015 mg/L
9% 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.
Sunset Harbor Condominiums
IN5245028 · Groundwater · 40 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
- 0.0014 mg/L
- Action level
- 0.015 mg/L
9% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Aug 19, 2024 |
Cedar Gardens Mhp
IN5245050 · Groundwater · 34 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
- 3.0e-4 mg/L
- Action level
- 0.015 mg/L
2% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
Hardness meter
What does nearby environmental evidence show?
249
PPM as CaCO₃
Very Hard
PPM
249
GPG
14.6
Regional environmental evidence
USGS hardness classification scale
249 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
249
mg/L as CaCO₃ equivalent
Grains per gallon
14.6
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
28
Nearest site
10.3 mi
Observation range
Aug 3, 2020–Jun 30, 2021
Regional evidence confidence
Moderate
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: 32N8W-5.4b (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 46303 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Cedar Lake median
249 PPM
About the same1 indexed ZIP readings · Range 249–249 PPM
Indiana median
340 PPM
91 PPM lower290 indexed ZIP readings · Range 78.6–498 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
Use the current Consumer Confidence Report for treated-water results and official notices.
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 Cedar Lake
Is tap water safe in Cedar Lake?+
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.