ZipCheckup grade for 46303: C.
A mixed picture - some signals here are worth your attention.
Cedar Lake, IN (46303): 2 Health-Based Violations Recorded for Mapped Water Systems - 59/100
EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Cedar Lake Water Works)
Health-based violation records by water system:
EPA records for the water systems mapped to 46303 in Cedar Lake, IN contain 81 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 2 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 2 health-based violations and 79 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.0145 mg/L is below the EPA action level, but EPA's health goal for lead is zero; filtration is advisable.
- Radon EPA Zone 2 - county-level radon potential, not a home measurement.
- Flood 6 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
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Score Breakdown
Overall Home Safety Score: 59/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (6) CRITICAL
Your Water System
ZIP code 46303 in Cedar Lake, Indiana is mapped to the water system Cedar Lake Water Works (EPA ID: IN5245047). This system provides water to approximately 4,600 people from groundwater sources.
There are 5 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Cedar Lake Water Works | IN5245047 | 4,600 | Groundwater |
| St. John Municipal Water Utility | IN5245043 | 25,700 | Groundwater |
| Cedar Lake - Robins Nest | IN5245067 | 950 | Groundwater |
| Aqua Indiana Water Company | IN5245017 | 1,350 | Groundwater |
| Indiana American Water - Lowell | IN5245029 | 11,908 | Surface water |
Other Water Quality Reports in Indiana
- 46001 (Alexandria) - 6 violations recorded for mapped water systems
- 46011 (Anderson) - 10 violations recorded for mapped water systems
- 46012 (Anderson) - 4 violations recorded for mapped water systems
- 46013 (Anderson) - 8 violations recorded for mapped water systems
- 46014 (Anderson)
- 46015 (Anderson)
- 46016 (Anderson) - 4 violations recorded for mapped water systems
- 46017 (Anderson) - 5 violations recorded for mapped water systems
- 46018 (Anderson)
- 46030 (Arcadia) - 8 violations recorded for mapped water systems
- 46031 (Atlanta)
- 46032 (Carmel) - 4 violations recorded for mapped water systems
- 46033 (Carmel) - 4 violations recorded for mapped water systems
- 46034 (Cicero) - 8 violations recorded for mapped water systems
- 46035 (Colfax)
- 46036 (Elwood) - 2 violations recorded for mapped water systems
- 46037 (Fishers) - 1 violation recorded for mapped water systems
- 46038 (Fishers)
- 46039 (Forest)
- 46040 (Fortville) - 1 violation recorded for mapped water systems
Nearby Water Quality Reports
- 46373 (Saint John) - 5 mi - 6 violations recorded for mapped water systems
- 46308 (Crown Point) - 7 mi
- 46356 (Lowell) - 7 mi - 1 violation recorded for mapped water systems
- 46307 (Crown Point) - 7 mi - 89 violations recorded for mapped water systems
- 60401 (Beecher, IL) - 7 mi - 20 violations recorded for mapped water systems
- 60417 (Crete, IL) - 8 mi - 22 violations recorded for mapped water systems
- 46325 (Hammond) - 8 mi
- 46411 (Merrillville) - 8 mi
- 46375 (Schererville) - 8 mi - 1 violation recorded for mapped water systems
- 46311 (Dyer) - 9 mi - 2 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Cedar Lake Water Works (IN5245047) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
Compliance History
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 46303 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) OK
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Cedar Lake
Based on local data for ZIP 46303, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Cedar Lake has 6 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Gutter Installation & Repair
The median home in 46303 was built around 1981. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
The median build year of homes in Cedar Lake is 1981; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Active weather alerts in Indiana increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 46303 safe to drink?
EPA SDWIS records 81 violations since 2021 across the water systems mapped to ZIP 46303 (primary system: Cedar Lake Water Works), including 2 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 46303's water come from?
The recorded water source for Cedar Lake Water Works, a system mapped to ZIP code 46303, is Groundwater. This system serves approximately 4,600 people.
How does Cedar Lake water compare to the national average?
Cedar Lake's Home Safety Score ranks lower than 82% of U.S. ZIP codes, and lower than 66% of ZIP codes within Indiana.
How can I get my water tested in Cedar Lake?
If Cedar Lake Water Works supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 46303 tap water?
The Lead and Copper Rule record selected for 46303 reports a 90th-percentile lead result of 0.0145 mg/L for a water system mapped to this ZIP (record date 2027-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 46303?
46303 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Lake County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 46303?
FEMA records contain 6 flood insurance claims filed in ZIP code 46303; the recorded rated-zone value (the most frequent one if there are several claims) is A, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Cedar Lake, IN (46303): 2 Health-Based Violations Recorded for Mapped Water Systems - 59/100. https://zipcheckup.com/report/46303/
@misc{zipcheckup-report-46303,
author = {{ZipCheckup}},
title = {{Cedar Lake, IN (46303): 2 Health-Based Violations Recorded for Mapped Water Systems - 59/100}},
year = {2026},
url = {https://zipcheckup.com/report/46303/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 46303
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 46373 | Saint John, IN | 5.4 mi | B | 6 |
| 46308 | Crown Point, IN | 6.6 mi | N/A | 0 |
| 46356 | Lowell, IN | 6.7 mi | B | 1 |
| 46307 | Crown Point, IN | 7.2 mi | C | 89 |
| 60401 | Beecher, IL | 7.2 mi | B | 20 |
| 60417 | Crete, IL | 8.0 mi | B | 22 |
| 46325 | Hammond, IN | 8.2 mi | N/A | 0 |
| 46411 | Merrillville, IN | 8.2 mi | N/A | 0 |
| 46375 | Schererville, IN | 8.4 mi | B | 1 |
| 46311 | Dyer, IN | 8.5 mi | B | 2 |
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