Robert William Park Water Association Inc.
EPA ID: WI2410589 · 1,065 people served · 42 ZIP codes
Looking at the EPA enforcement file for Robert William Park Water Association Inc., 10 violations are listed as unresolved — those findings cover the utility's service area of approximately 1,065 people and remain open in the federal compliance system, awaiting formal corrective action documentation.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Robert William Park Water Association Inc. Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Robert William Park Water Association Inc. serves a community with a median household income of $62,176 and an estimated 785,981 residents across its service area. Approximately 85% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 49% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Robert William Park Water Association Inc.'s water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 2% of homes in Milwaukee County, Wisconsin rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Robert William Park Water Association Inc. compares to EPA limits
What This Means For You
Lead at 1 mg/L (action level) exceeds the EPA maximum of 0.015 mg/L (action level). Brain damage in children, kidney & blood pressure in adults. Consider reverse osmosis filtration.
Consumer Confidence Report Rule at 15 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 8 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 6 mg/L exceeds the EPA maximum of mg/L.
Stage 2 DBP Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Lead was detected in this water system. reverse osmosis filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Robert William Park Water Association Inc. (EPA ID: WI2410589) is a community water system in Wisconsin that serves approximately 1,065 people from groundwater sources.
This system provides water to 42 ZIP codes across 1 community.
Average Home Safety Score: B (75/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Lead and Copper Rule | Monitoring | Unresolved |
| October 1, 2024 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| July 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| June 1, 2024 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| May 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| February 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2023 | Gross Alpha | Monitoring | Unresolved |
| July 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 15 | No |
| Lead and Copper Rule | Treatment Failure | 8 | No |
| Surface Water Treatment Rule | Treatment Failure | 6 | No |
| Stage 2 DBP Rule | Treatment Failure | 4 | Yes |
| Stage 1 DBP Rule | Treatment Failure | 3 | No |
| Total Coliform | Microbiological | 2 | No |
| Lead | Inorganic | 1 | No |
| Contaminant 2356 | Other Violation | 1 | No |
| Gross Alpha | Radionuclides | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 53225 | 0.0053 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 1 ZIP code confirmed via EPA Community Water System Service Area Boundaries v3 plus 41 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
This system serves 42 ZIP codes:
53201 · 53202 · 53203 · 53204 · 53205 53206 · 53207 · 53208 · 53209 · 53210 53211 · 53212 · 53213 · 53214 · 53215 53216 · 53217 · 53218 · 53219 · 53220 53221 · 53222 · 53223 · 53224 · 53225 53226 · 53227 · 53228 · 53233 · 53234 53237 · 53244 · 53259 · 53263 · 53267 53268 · 53274 · 53278 · 53288 · 53290 53293 · 53295
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Robert William Park Water Association Inc. (WI2410589) on EPA.gov.
Frequently Asked Questions
Is Robert William Park Water Association Inc. water safe to drink?
Robert William Park Water Association Inc. has recorded 2 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Robert William Park Water Association Inc. serve?
Robert William Park Water Association Inc. serves approximately 1,065 people across 42 ZIP codes in Wisconsin.
Where does Robert William Park Water Association Inc. get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Robert William Park Water Association Inc. (EPA ID: WI2410589) — request the latest Consumer Confidence Report or ask about specific contaminants.