Davenport, IA: 90 Violations — 52/100 (2026)
9 ZIP codes · 7 water systems · Updated 2026-06-03
Systems across Davenport show elevated violation counts against IA benchmarks — the low safety grade reflects that ongoing compliance pattern.
How Davenport Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Davenport, IA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Davenport's 9 ZIP codes.
Key Facts for Davenport Residents
- Your city's water systems recorded 90 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 77% — older plumbing may contain lead solder.
- Estimated remediation: $2,933 per household.
- CDC health risk index: 13 — above typical levels.
Davenport's Water Providers
Water delivery in Davenport, IA is handled by 3 utilities rather than a single system — drawn from 7 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 9 ZIP codes in Davenport, Iowa (population ~103,543), covering 7 community water systems serving approximately 157,873 people region-wide.
9 of 9 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Davenport: D (52/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Davenport water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 9 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 60 | 9 |
| Contaminant 1052 | Other | 10 | 9 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 10 | 9 |
| Total Coliform | Microbiological | 10 | 9 |
| Lead and Copper Rule | Treatment Technique | 10 | 9 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 52801 | D | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52802 | D | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52803 | D | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52804 | D | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52805 | C | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52806 | D | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52807 | D | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52808 | C | 10 | 0 | Iowa-american Wtr Company-davenport |
| 52809 | C | 10 | 0 | Iowa-american Wtr Company-davenport |
All ZIP Codes in Davenport
- 52801 [D] — 10 violations
- 52802 [D] — 10 violations
- 52803 [D] — 10 violations
- 52804 [D] — 10 violations
- 52805 [C] — 10 violations
- 52806 [D] — 10 violations
- 52807 [D] — 10 violations
- 52808 [C] — 10 violations
- 52809 [C] — 10 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
Updated daily.
Davenport Community Health Snapshot
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
What's in Davenport's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Davenport Infrastructure Age
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
Because the majority of Davenport's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1947 reflects a city where lead-era plumbing materials are common rather than exceptional.
Over half of homes in Davenport 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.
How Remediation Costs Compare in Davenport
Looking at how documented remediation costs fit within Davenport property values, the equity share lands in the moderate tier — a finding that positions the household financial perspective between routine maintenance and a significant budget commitment, where most homeowners can successfully address documented issues by treating the expense as a planned financial priority rather than an unexpected one.
Remediation costs are moderate relative to home values in Davenport. The estimated $1,956–$4,000 range is manageable for most homeowners but still worth budgeting for. Home values are 4% below the Iowa average.
Davenport: Lead Risk & Vulnerable Populations
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.
When older housing represents 77% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Davenport address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Davenport: Flood History & Water Damage Risk
Unlike communities where NFIP data shows minimal flood history, Davenport's record documents 1124 claims and 89% of ZIP codes inside FEMA flood zones — a combination that moves flood-related water quality risk from the background into the foreground of any complete local water assessment. Flooding can overwhelm treatment capacity, contaminate wells, and trigger distribution backflow; at this level of exposure, those mechanisms have likely been activated during significant flood events.
Davenport has a significant flood history with 1,124 FEMA flood insurance claims on record, averaging $11,145 per claim. With 89% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
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. Flood damage can add significantly to the estimated <strong>$2,933</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Davenport
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Davenport's water.
- Check your home's plumbing. With 77% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Davenport, IA