Cedar Grove, WI Water Safety: 73/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Tap water monitoring data for Cedar Grove shows a consistently clean picture in WI — few violations on record, compliance well above the median.
How Cedar Grove Compares
Data: EPA SDWIS Last verified: 2026-06-03
Cedar Grove Water: The Quick Version
- Average lead level: 0.0089 mg/L.
- Homes built before 1986: 61% — older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 12.99 — above typical levels.
Water Systems Serving Cedar Grove
Residential water in Cedar Grove, WI is supplied by 3 separate utilities — not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 3 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track water quality and home safety data for 1 ZIP code in Cedar Grove, Wisconsin (population ~3,692), covering 3 community water systems serving approximately 7,816 people region-wide.
No EPA violations recorded across any ZIP codes in Cedar Grove — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Cedar Grove: B (73/100)
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
Cedar Grove water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0089 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 53013 | B | Cedar Grove Waterworks | 2,213 |
All ZIP Codes in Cedar Grove
- 53013 [B]
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.
CDC Health Data for Cedar Grove
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
How Old Is Cedar Grove's Housing Stock?
With 61% 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 Cedar Grove, where the median build year is 1975, 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.
Over half of homes in Cedar Grove 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.
Cedar Grove: Remediation Cost in Perspective
Within the Cedar Grove market, estimated remediation claims a small portion of typical property equity — the financial burden is proportionally low.
Remediation costs in Cedar Grove are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 8% above the Wisconsin average.
Protecting Children from Lead in Cedar Grove
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.
Locally, 61% of Cedar Grove homes carry interior plumbing from the era when lead solder was still permitted in new builds, and citywide monitoring approaches or crosses the EPA action benchmark. Households can find a draw-test kit and certified filtration through verified retailers.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Cedar Grove
Although Cedar Grove's flood history doesn't reach high-severity thresholds, NFIP data documents 3 claims and FEMA maps place 100% of ZIP codes in designated flood zones — a combined profile that makes flood-related water quality considerations a reasonable planning baseline.
Cedar Grove has a moderate flood history with 3 FEMA claims averaging $4,688 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>$1,600</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.
Deep Dive Reports
Detailed analysis for Cedar Grove, WI