CITY REPORT KS 2 HEALTH VIOLATIONS

Oswego, KS: 13 Violations - Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$86K
Median Home Value
$2,500
Est. Remediation (2.9% of home value)

What You Should Know About Oswego Water

  • Your city's water systems recorded 13 violations in the past 5 years.
  • Average lead level: 0.0032 mg/L.
  • Homes built before 1986: 80% - older plumbing may contain lead solder.
  • Estimated remediation: $2,500 per household.
  • CDC health risk index: 15.16 - above typical levels.

Who Supplies Your Water in Oswego

Residential water service in Oswego, KS is divided among 3 separate utilities, drawn from 5 systems on file with federal regulators.

Overview

We track home safety data for 1 ZIP code in Oswego, Kansas (population ~2,693), covering 5 community water systems serving approximately 7,394 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. 2 health-based violations appear in the available health breakdown.

Water Sources

Oswego water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0032 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
Stage 2 DBP Rule Treatment Technique 6 1
E. coli Microbiological 6 1
Contaminant 1009 Other 2 1
Chlorite Disinfection Byproducts 2 1
Stage 1 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
67356 13 2 City of Oswego,

All ZIP Codes in Oswego

  • 67356 - 13 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Oswego

10.7%
Asthma (US: 9.8%)
13.4%
Diabetes (US: 10.4%)
17.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.7% ↑
Diabetes 13.4% ↑
Mental Health 17.1% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Oswego Water

Stage 2 DBP Rule 6 violations
Treatment Technique
Disinfection byproduct exposure risk
E. coli 6 violations
Microbiological
Gastrointestinal illness, potentially fatal
Contaminant 1009 2 violations
Other

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Oswego

1964
Median Build Year
80%
Built Before 1986
44%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 80% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Federal plumbing rules changed in two stages - lead pipes were phased out before 1970, and lead solder was banned in 1986 - but in Oswego, where the median build year is 1964, most of the housing was already in place before those rules took effect. The materials installed under older standards remain embedded in a substantial portion of the residential inventory today.

1964
Median Year Built
80%
Pre-1986 (Lead Paint Risk)
44%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (44%) 1970–1986 (36%) Post-1986 (20%)

Over half of homes in Oswego were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Oswego Homeowners

Within the Oswego market, documented remediation claims a significant slice of typical equity - the financial weight here is material.

Median Home Value
$86,400
Est. Remediation
$2,500
Remediation as % of home value 2.9%

At 2.9% of home value, remediation costs in Oswego represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,350–$3,900. Home values here are 43% below the Kansas average.

Lead Exposure Risk for Children in Oswego

80%
Homes Built Before 1986
0.0032
mg/L Avg Lead (Limit: 0.015)

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.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 80% of Oswego stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Oswego

4
Total FEMA Flood Claims
$58,057
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Oswego contains 4 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $58,057. 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>$2,500</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.

Frequently Asked Questions

How many water violations does Oswego have?
Oswego water systems have a total of 13 EPA violations, including 2 health-based violations. Violations are tracked across 1 ZIP code.
Does Oswego water have lead?
The average 90th-percentile lead level in Oswego is 0.0032 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Oswego?
Oswego is served by 5 public water systems across 1 ZIP code, serving approximately 2,693 people.
How much does it cost to fix water issues in Oswego?
Estimated remediation costs in Oswego average $2,500 per household, ranging from $1,350 to $3,900. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesKansas → Oswego, KS

How to cite this page

APA ZipCheckup. (2026). Oswego, KS: 13 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ks/oswego/
BibTeX
@misc{zipcheckup-cities-ks-oswego,
  author = {{ZipCheckup}},
  title  = {{Oswego, KS: 13 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ks/oswego/}
}

Page version: August 2026.

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