Saint John, IN: 6 Violations - Home Safety 73/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Saint John: B.
This ZIP looks solid, with a few items worth a quick check.
Unlike many cities its size in IN, Saint John keeps health-based violation rates low - systems here score at or above the state average for tap water safety, with no systemic concerns flagged in the current data set.
How Saint John Compares
Data: EPA SDWIS
Saint John Water: The Quick Version
- Your city's water systems recorded 6 violations in the past 5 years.
- Average lead level: 0.0099 mg/L.
- Homes built before 1986: 29% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 14.49 - above typical levels.
Water Systems Serving Saint John
3 independent water providers serve Saint John, IN - 5 systems appear in federal records.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Saint John, Indiana (population ~18,509), covering 5 community water systems serving approximately 103,850 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Saint John: B (73/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Saint John water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0099 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 4 | 1 |
| Consumer Confidence Report Rule | Reporting | 4 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 46373 | B | 6 | 0 | St. John Municipal Water Utility |
All ZIP Codes in Saint John
- 46373 [B] - 6 violations
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Saint John
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Saint John
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Saint John's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Although a small portion of Saint John's homes predate 1986, the median build year of 1991 indicates the majority of the city's residential plumbing was installed after lead solder was banned - which tends to reduce the plumbing-related component of lead exposure at the household level.
Most homes in Saint John were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Saint John: Remediation Cost in Perspective
Across Saint John, the equity share taken up by estimated remediation is small - a favorable ratio for most property owners.
Remediation costs in Saint John are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 110% above the Indiana average.
Protecting Children from Lead in Saint John
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
In Saint John, the older-stock footprint runs at 29% - a contained slice - and aggregate utility readings land safely under the EPA action mark. That keeps lead off the local priority list, with a one-faucet draw remaining the only direct read on a specific address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Saint John
Historical NFIP data for Saint John contains 6 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $8,367. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$1,600</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Saint John, IN