ZipCheckup grade for 46556: D.
Federal records show several conditions worth reviewing.
Your top priority: see the breakdown below and consider a certified water filter. Check your ZIP → NSF certified filters
Notre Dame, IN (46556): PFAS Above 2029 MCL Level - 49/100
EPA data combined for 2 water systems mapped to this ZIP (largest mapped system: South Bend Water Works)
EPA records for the water systems mapped to 46556 in Notre Dame, IN contain 4 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 4 violations (non-health) (since 2021).
- Lead The reported 90th-percentile lead result of 0.0047 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
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One critical finding sits on record for Notre Dame (46556), unaccompanied by high-priority items.
Score Breakdown
Overall Home Safety Score: 49/100
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 (7) HIGH
Your Water System
ZIP code 46556 in Notre Dame, Indiana is mapped to the water system South Bend Water Works (EPA ID: IN5271014). This system provides water to approximately 115,000 people from groundwater sources.
There are 2 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| South Bend Water Works | IN5271014 | 115,000 | Groundwater |
| University of Notre Dame | IN5271020 | 7,400 | 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
- 46617 (South Bend) - 1 mi - 4 violations recorded for mapped water systems
- 46616 (South Bend) - 1 mi - 1 violation recorded for mapped water systems
- 46604 (South Bend) - 2 mi
- 46626 (South Bend) - 2 mi
- 46635 (South Bend) - 2 mi - 1 violation recorded for mapped water systems
- 46637 (South Bend) - 2 mi - 5 violations recorded for mapped water systems
- 46601 (South Bend) - 2 mi - 1 violation recorded for mapped water systems
- 46615 (South Bend) - 2 mi - 1 violation recorded for mapped water systems
- 46628 (South Bend) - 3 mi - 1 violation recorded for mapped water systems
- 46613 (South Bend) - 3 mi - 1 violation 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 South Bend Water Works (IN5271014) 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.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 46556. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFPeA, PFHxS, PFBA, PFHxA, PFOA, PFBS, PFHpA, PFPeS.
Highest measured level: 0.0397 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Environmental Hazards (10) HIGH
Home & Infrastructure (6) OK
Cost & Community (6) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Frequently Asked Questions
Is the tap water in 46556 safe to drink?
EPA SDWIS records 4 violations since 2021 across the water systems mapped to ZIP 46556 (primary system: South Bend Water Works), 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 46556's water come from?
The recorded water source for South Bend Water Works, a system mapped to ZIP code 46556, is Groundwater. This system serves approximately 115,000 people.
How does Notre Dame water compare to the national average?
Notre Dame's Home Safety Score ranks lower than 94% of U.S. ZIP codes, and lower than 91% of ZIP codes within Indiana.
How can I get my water tested in Notre Dame?
If South Bend 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 46556 tap water?
The Lead and Copper Rule record selected for 46556 reports a 90th-percentile lead result of 0.0047 mg/L for a water system mapped to this ZIP (record date 2025-12-31). 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 46556?
46556 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in St. Joseph County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 46556's water?
Yes, PFAS have been detected in samples from water systems mapped to 46556. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Notre Dame, IN (46556): PFAS Above 2029 MCL Level - 49/100. https://zipcheckup.com/report/46556/
@misc{zipcheckup-report-46556,
author = {{ZipCheckup}},
title = {{Notre Dame, IN (46556): PFAS Above 2029 MCL Level - 49/100}},
year = {2026},
url = {https://zipcheckup.com/report/46556/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 46556
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 46617 | South Bend, IN | 1.1 mi | D | 4 |
| 46616 | South Bend, IN | 1.5 mi | D | 1 |
| 46604 | South Bend, IN | 1.5 mi | N/A | 0 |
| 46626 | South Bend, IN | 1.7 mi | N/A | 0 |
| 46635 | South Bend, IN | 1.9 mi | D | 1 |
| 46637 | South Bend, IN | 2.1 mi | D | 5 |
| 46601 | South Bend, IN | 2.1 mi | D | 1 |
| 46615 | South Bend, IN | 2.3 mi | D | 1 |
| 46628 | South Bend, IN | 2.9 mi | D | 1 |
| 46613 | South Bend, IN | 3.2 mi | D | 1 |
Nearby ZIP Code Reports
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