CITY REPORT IL 1 HEALTH VIOLATIONS

Ottawa, IL: 12 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
$157K
Median Home Value
$1,800
Est. Remediation (1.1% of home value)

Ottawa Water: The Quick Version

  • Your city's water systems recorded 12 violations in the past 5 years.
  • Average lead level: 0.005 mg/L.
  • Homes built before 1986: 77% - older plumbing may contain lead solder.
  • Estimated remediation: $1,800 per household.
  • CDC health risk index: 13.79 - above typical levels.

Water Systems Serving Ottawa

Ottawa, IL is covered by 2 major water utilities out of 2 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.

Overview

We track home safety data for 1 ZIP code in Ottawa, Illinois, covering 2 community water systems serving approximately 23,999 people. 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. 1 health-based violation appear in the available health breakdown.

Water Sources

Ottawa water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0050 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 8 1
Haloacetic Acids (HAA5) Disinfection Byproducts 8 1
Gross Beta Radionuclides 6 1
Stage 2 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
61350 12 1 Ottawa

All ZIP Codes in Ottawa

  • 61350 - 12 violations ⚠

Data Sources

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

CDC Health Data for Ottawa

10.3%
Asthma (US: 9.8%)
12.4%
Diabetes (US: 10.4%)
17%
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 10.3% ↑
Diabetes 12.4% ↑
Mental Health 17% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Ottawa

Total Trihalomethanes (TTHM) 8 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 8 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Gross Beta 6 violations
Radionuclides · EPA limit: 50 pCi/L

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

How Old Is Ottawa's Housing Stock?

1951
Median Build Year
77%
Built Before 1986
52%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 77% 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

When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Ottawa's median build year of 1951 places it squarely in that category.

1951
Median Year Built
77%
Pre-1986 (Lead Paint Risk)
52%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (52%) 1970–1986 (25%) Post-1986 (23%)

Over half of homes in Ottawa 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.

Ottawa: Remediation Cost in Perspective

Remediation costs in Ottawa represent a moderate share of typical home values - worth budgeting for carefully, though within reach for most homeowners who plan ahead.

Median Home Value
$157,100
Est. Remediation
$1,800
Remediation as % of home value 1.1%

Remediation costs are moderate relative to home values in Ottawa. The estimated $1,100–$3,300 range is manageable for most homeowners but still worth budgeting for. Home values are 15% below the Illinois average.

Protecting Children from Lead in Ottawa

77%
Homes Built Before 1986
0.005
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.

Routinely in Ottawa, where 77% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.

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

Historical Flood-Claim Evidence for Ottawa

241
Total FEMA Flood Claims
$19,385
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Ottawa contains 241 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $19,385. 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>$1,800</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 Ottawa have?
Ottawa water systems have a total of 12 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Ottawa water have lead?
The average 90th-percentile lead level in Ottawa is 0.005 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 Ottawa?
Ottawa is served by 2 public water systems across 1 ZIP code, serving approximately 23,999 people.
How much does it cost to fix water issues in Ottawa?
Estimated remediation costs in Ottawa average $1,800 per household, ranging from $1,100 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Ottawa, IL

How to cite this page

APA ZipCheckup. (2026). Ottawa, IL: 12 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/il/ottawa/
BibTeX
@misc{zipcheckup-cities-il-ottawa,
  author = {{ZipCheckup}},
  title  = {{Ottawa, IL: 12 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/ottawa/}
}

Page version: August 2026.

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