ZipCheckup grade for 46311: B.
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Dyer, IN (46311): 2 Violations Recorded for Mapped Water Systems - 75/100
EPA data combined for 4 water systems mapped to this ZIP (largest mapped system: Dyer Water Department)
EPA records for the water systems mapped to 46311 in Dyer, IN contain 2 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 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 violations (non-health) (since 2021).
- Lead The reported 90th-percentile lead result of 0.0099 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 162 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
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Score Breakdown
Overall Home Safety Score: 75/100
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) MODERATE
Your Water System
ZIP code 46311 in Dyer, Indiana is mapped to the water system Dyer Water Department (EPA ID: IN5245011). This system provides water to approximately 16,800 people from surface water sources.
There are 4 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Dyer Water Department | IN5245011 | 16,800 | Surface water |
| St. John Municipal Water Utility | IN5245043 | 25,700 | Groundwater |
| Schererville Water Department | IN5245041 | 30,000 | Surface water |
| Aqua Indiana Water Company | IN5245017 | 1,350 | Groundwater |
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
- 46375 (Schererville) - 3 mi - 1 violation recorded for mapped water systems
- 46373 (Saint John) - 3 mi - 6 violations recorded for mapped water systems
- 60411 (Chicago Heights, IL) - 4 mi - 144 violations recorded for mapped water systems
- 46321 (Munster) - 4 mi - 11 violations recorded for mapped water systems
- 46322 (Highland) - 5 mi
- 46319 (Griffith) - 5 mi - 4 violations recorded for mapped water systems
- 60438 (Lansing, IL) - 5 mi - 17 violations recorded for mapped water systems
- 60417 (Crete, IL) - 6 mi - 22 violations recorded for mapped water systems
- 46324 (Hammond) - 6 mi - 11 violations recorded for mapped water systems
- 60425 (Glenwood, IL) - 6 mi - 14 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 Dyer Water Department (IN5245011) 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.
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 46311 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 (8) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Dyer
Based on local data for ZIP 46311, 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 Dyer has 162 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)
Service 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 46311 safe to drink?
EPA SDWIS records 2 violations since 2021 across the water systems mapped to ZIP 46311 (primary system: Dyer Water Department), including 0 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 46311's water come from?
The recorded water source for Dyer Water Department, a system mapped to ZIP code 46311, is Surface water. This system serves approximately 16,800 people.
How does Dyer water compare to the national average?
Dyer's Home Safety Score ranks better than 51% of U.S. ZIP codes, and at or above 81% within Indiana.
How can I get my water tested in Dyer?
If Dyer Water Department 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 46311 tap water?
The Lead and Copper Rule record selected for 46311 reports a 90th-percentile lead result of 0.0099 mg/L for a water system mapped to this ZIP (record date 2026-12-31). 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 46311?
46311 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 46311?
FEMA records contain 162 flood insurance claims filed in ZIP code 46311; the recorded rated-zone value (the most frequent one if there are several claims) is B, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Dyer, IN (46311): 2 Violations Recorded for Mapped Water Systems - 75/100. https://zipcheckup.com/report/46311/
@misc{zipcheckup-report-46311,
author = {{ZipCheckup}},
title = {{Dyer, IN (46311): 2 Violations Recorded for Mapped Water Systems - 75/100}},
year = {2026},
url = {https://zipcheckup.com/report/46311/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 46311
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 46375 | Schererville, IN | 2.6 mi | B | 1 |
| 46373 | Saint John, IN | 3.4 mi | B | 6 |
| 60411 | Chicago Heights, IL | 4.3 mi | C | 144 |
| 46321 | Munster, IN | 4.3 mi | C | 11 |
| 46322 | Highland, IN | 4.9 mi | B | 0 |
| 46319 | Griffith, IN | 5.4 mi | B | 4 |
| 60438 | Lansing, IL | 5.4 mi | C | 17 |
| 60417 | Crete, IL | 6.0 mi | B | 22 |
| 46324 | Hammond, IN | 6.4 mi | C | 11 |
| 60425 | Glenwood, IL | 6.5 mi | C | 14 |
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