CITY REPORT WI

Roberts, WI: 1 Violation — 70/100 (2026)

1 ZIP code · 2 water systems · Updated 2026-06-03

The water systems supplying Roberts show a track record of above-average compliance with federal standards — consistently among the better performers in WI.

How Roberts Compares

Roberts70/100
Wisconsin avg66/100
National avg67/100

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

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
B · 70
Avg Safety Score
Zone 1
Radon Risk (High)
$353K
Median Home Value
$2,400
Est. Remediation (0.7% of home value)

Key Facts for Roberts Residents

  • Your city's water systems recorded 1 violation in the past 5 years.
  • Average lead level: 0.001 mg/L.
  • Homes built before 1986: 31% — older plumbing may contain lead solder.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 11.96.

Roberts's Water Providers

Structurally, Roberts, WI's water supply is divided. Federal data identifies 2 water systems in the area, with 2 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.

Hammond Waterworks
Serves ~1,884 people · 1 violation
70
/100
Roberts Waterworks
Serves ~1,872 people · 1 violation
70
/100

Overview

We track water quality and home safety data for 1 ZIP code in Roberts, Wisconsin, covering 2 community water systems serving approximately 4,612 people.

1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.

Home Safety Score

Average Home Safety Score for Roberts: B (70/100)

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

Roberts water systems draw from: Groundwater.

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)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
54023 B 1 0 Roberts Waterworks

All ZIP Codes in Roberts

  • 54023 [B] — 1 violation

Data Sources

Updated daily.

Roberts Community Health Snapshot

10.4%
Asthma (US: 9.8%)
9.6%
Diabetes (US: 10.4%)
14.6%
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 10.4% ↑
Diabetes 9.6% ↓
Mental Health 14.6% ↓

Vertical line = national average. Above national · Below national

What's in Roberts's Water?

Surface Water Treatment Rule 2 violations
Treatment Technique
Pathogens may not be adequately removed

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

Roberts Infrastructure Age

2009
Median Build Year
31%
Built Before 1986
9%
Built Before 1970
PEX or Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Plumbing risk in residential housing tracks directly to construction era: pre-1986 homes may have lead-soldered copper joints; pre-1970 homes may have lead pipes outright. Roberts's median build year of 2009 places the city in a moderate risk zone where neither era dominates the housing inventory. Understanding which side of the 1986 threshold a specific property falls on — and whether it predates 1970 — is the most actionable starting point for a homeowner trying to assess their own tap water exposure.

2009
Median Year Built
31%
Pre-1986 (Lead Paint Risk)
9%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (9%) 1970–1986 (22%) Post-1986 (69%)

Most homes in Roberts 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 Roberts

For most homeowners in Roberts, the estimated cost of water and safety remediation represents a proportionally modest share of what properties are worth — placing this area in the lower tier of the remediation share scale.

Median Home Value
$352,500
Est. Remediation
$2,400
Remediation as % of home value 0.7%

Remediation costs in Roberts are relatively low compared to home values. The $1,600–$3,300 estimated range is a small fraction of median property value. Home values are 53% above the Wisconsin average.

Roberts: Lead Risk & Vulnerable Populations

31%
Homes Built Before 1986
0.001
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.

Even where utility-side monitoring meets Lead and Copper Rule requirements, the 31% pre-rule share in Roberts keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.

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

Roberts: Flood History & Water Damage Risk

Over the multi-decade window covered by the National Flood Insurance Program, Roberts has accumulated 7 claims — a total that suggests more than isolated flood exposure. With 100% of ZIP codes in designated flood zones, the water-quality implications of flooding move from hypothetical to periodically relevant: treatment intake can be compromised, wells can be infiltrated, and distribution backflow can occur.

7
Total FEMA Flood Claims
$5,017
Avg Claim Payout
100%
ZIPs in FEMA Flood Zones

Roberts has a moderate flood history with 7 FEMA claims averaging $5,017 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>$2,400</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.

Frequently Asked Questions

Is the water safe to drink in Roberts, WI?
Roberts has an average water safety score of 70/100 (Grade B). 1 EPA violation has been recorded. Check individual ZIP code reports for details specific to your neighborhood.
How many water violations does Roberts have?
Roberts water systems have a total of 1 EPA violation. Violations are tracked across 1 ZIP code.
Does Roberts water have lead?
The average 90th-percentile lead level in Roberts is 0.001 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 does Roberts compare to Wisconsin average?
Roberts has an average water safety score of 70/100, which is above the Wisconsin state average of 66/100.
How many water systems serve Roberts?
Roberts is served by 2 public water systems across 1 ZIP code, serving approximately 4,612 people.
How much does it cost to fix water issues in Roberts?
Estimated remediation costs in Roberts average $2,400 per household, ranging from $1,600 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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