Lodi, WI: Lead Above EPA Limits — 43/100 (2026)
1 ZIP code · 7 water systems · Updated 2026-06-03
If you're researching Lodi, WI tap water quality, the baseline finding is below average — health-based violations are documented in several service areas, and verifying the specific system at your address is the right next step.
How Lodi Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Lodi Residents
- Your city's water systems recorded 8 violations in the past 5 years.
- Average lead level: 0.018 mg/L — exceeds the EPA action level of 0.015 mg/L.
- Homes built before 1986: 46% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
- CDC health risk index: 12.72 — above typical levels.
Lodi's Water Providers
Lodi, WI draws its residential water from 3 separate providers among the 7 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
Overview
We track water quality and home safety data for 1 ZIP code in Lodi, Wisconsin, covering 7 community water systems serving approximately 8,708 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 7 health-based violations documented.
Home Safety Score
Average Home Safety Score for Lodi: D (43/100)
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
Lodi water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0180 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 ZIP code 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 |
|---|---|---|---|
| Barium | Inorganic | 8 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 4 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 53555 | D | 8 | 7 | Lodi Waterworks |
All ZIP Codes in Lodi
- 53555 [D] — 8 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.
Lodi 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 Lodi's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Lodi Infrastructure Age
With 46% 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
Prohibited from residential plumbing since 1986, lead solder divides Lodi's housing stock along a timeline that the median build year of 1998 straddles. A meaningful share of homes predates the ban — a configuration that places moderate aggregate pressure on plumbing-related lead risk, distributed unevenly across neighborhoods.
Most homes in Lodi 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.
How Remediation Costs Compare in Lodi
When remediation costs are measured against Lodi home values, the resulting ratio is in the low tier — addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.
Remediation costs in Lodi are relatively low compared to home values. The $1,100–$4,100 estimated range is a small fraction of median property value. Home values are 56% above the Wisconsin average.
Lodi: 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.
Throughout the multi-year monitoring window under Lead and Copper Rule sampling, citywide samples for Lodi have moved past the regulatory action mark, and 46% of local stock comes from the pre-rule era. Both the housing inventory and the system data support active household-level reads as a practical step.
<strong>1 ZIP code</strong> (100% of the city) exceeds the EPA lead action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Lodi: Flood History & Water Damage Risk
NFIP records stretching across multiple decades show Lodi accumulating 28 claims and carrying 100% of its ZIP codes inside FEMA flood zones — evidence of meaningful exposure that extends beyond isolated incidents. The mechanisms linking flooding to water quality haven't changed: treatment facilities can be overwhelmed, wells can be infiltrated, and distribution systems can experience backflow. For a community at this exposure level, those mechanisms shift from hypothetical to periodically relevant.
Lodi has a moderate flood history with 28 FEMA claims averaging $5,296 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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>$2,200</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 Lodi
- Test your water at home. City-level data shows averages — your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for Barium can reduce the most common contaminant found in Lodi's water.
- Check your home's plumbing. With 46% 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 Lodi, WI