CITY REPORT WI

Forestville, WI: High Radon Risk — 53/100 (2026)

1 ZIP code · 1 water system · Updated 2026-06-03

Systems across Forestville show elevated violation counts against WI benchmarks — the low safety grade reflects that ongoing compliance pattern.

How Forestville Compares

Forestville53/100
Wisconsin avg66/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
D · 53
Avg Safety Score
Zone 1
Radon Risk (High)
$187K
Median Home Value
$3,000
Est. Remediation (1.6% of home value)

Forestville Water: The Quick Version

  • Homes built before 1986: 69% — older plumbing may contain lead solder.
  • Estimated remediation: $3,000 per household.
  • CDC health risk index: 14.01 — above typical levels.

Water Systems Serving Forestville

Supply infrastructure in Forestville, WI runs through a single dominant provider — the main entity among 1 tracked system through which rate decisions, infrastructure work, and federal compliance are managed.

MAPLEWOOD SANITARY DIST 1
Serves ~122 people
53
/100

Overview

We track water quality and home safety data for 1 ZIP code in Forestville, Wisconsin, covering 1 community water system serving approximately 1,473 people.

No EPA violations recorded across any ZIP codes in Forestville — an excellent indicator of water quality.

Home Safety Score

Average Home Safety Score for Forestville: D (53/100)

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

Forestville water systems draw from: Groundwater.

Lead & Copper

  • Lead data: not yet available for Forestville
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High 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
54213 D MAPLEWOOD SANITARY DIST 1 122

All ZIP Codes in Forestville

Data Sources

Updated daily.

CDC Health Data for Forestville

10.5%
Asthma (US: 9.8%)
13%
Diabetes (US: 10.4%)
13%
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 10.5% ↑
Diabetes 13% ↑
Mental Health 13% ↓

Vertical line = national average. Above national · Below national

How Old Is Forestville's Housing Stock?

1977
Median Build Year
69%
Built Before 1986
45%
Built Before 1970
Copper
Likely Pipe Material

With 69% 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

Housing age is one of the most reliable proxies for plumbing-era lead risk, because two federal milestones — the widespread use of lead pipes before 1970 and the continued use of lead solder until 1986 — define the highest-risk tiers of the residential housing stock. With a median build year of 1977, Forestville falls squarely within the older range — meaning a large fraction of the housing was built under the plumbing standards of those earlier eras. The distribution above captures where that risk concentrates, and why older neighborhoods warrant particular attention from residents concerned about tap water quality.

1977
Median Year Built
69%
Pre-1986 (Lead Paint Risk)
45%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (45%) 1970–1986 (24%) Post-1986 (31%)

Over half of homes in Forestville 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.

Forestville: Remediation Cost in Perspective

The equity impact of remediation in Forestville sits at a moderate level — real enough to plan for, within reach for most.

Median Home Value
$186,500
Est. Remediation
$3,000
Remediation as % of home value 1.6%

Remediation costs are moderate relative to home values in Forestville. The estimated $2,000–$4,000 range is manageable for most homeowners but still worth budgeting for. Home values are 19% below the Wisconsin average.

Protecting Children from Lead in Forestville

69%
Homes Built Before 1986

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.

Older interior plumbing shapes the local picture: 69% of Forestville homes predate the federal solder ban, and aggregate sampling either approaches or crosses the action benchmark. That mix makes a single-home draw a standard pre-purchase or pre-occupancy step.

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

Climate-Related Water Risk for Forestville

2 FEMA flood insurance claims are on file for Forestville, and 100% of local ZIP codes fall within federally designated flood zones — enough to put flood exposure on the planning radar, though short of the concentrated-risk threshold where treatment-system vulnerability becomes a primary consideration.

2
Total FEMA Flood Claims
$24,514
Avg Claim Payout
100%
ZIPs in FEMA Flood Zones

Forestville has a moderate flood history with 2 FEMA claims averaging $24,514 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>$3,000</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 Forestville

  1. 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.
  2. Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
  3. Check your home's plumbing. With 69% of homes built before 1986, lead solder is a real possibility.
  4. Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.

Frequently Asked Questions

Is the water safe to drink in Forestville, WI?
Forestville has an average water safety score of 53/100 (Grade D). No EPA violations on record. Check individual ZIP code reports for details specific to your neighborhood.
How does Forestville compare to Wisconsin average?
Forestville has an average water safety score of 53/100, which is below the Wisconsin state average of 66/100.
How many water systems serve Forestville?
Forestville is served by 1 public water system across 1 ZIP code, serving approximately 1,473 people.
How much does it cost to fix water issues in Forestville?
Estimated remediation costs in Forestville average $3,000 per household, ranging from $2,000 to $4,000. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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