Oak Valley
EPA ID: IA5784311 · 100 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Oak Valley (IA5784311): 1 violation recorded with unresolved status in the SDWIS data used. Oak Valley | open status in EPA data: 1 violation | people served: about 100.
Data: EPA SDWIS
Service Area Map
Coverage area for Oak Valley Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Oak Valley have a median household income of $164,972 and about 8,357 residents live in those ZIP codes (Census; not the number of people this system supplies).
💧 Where Does Your Water Come From?
Oak Valley's water is classified in EPA records as a groundwater source. 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.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Iowa
System Overview
Oak Valley (EPA ID: IA5784311) is a community water system in Iowa that serves approximately 100 people from groundwater sources.
This system serves ZIP code 52411 in Cedar Rapids.
Violation History
Status breakdown for accepted records with record years 2021-2026: 10 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| December 1, 2025 | Lead and Copper Rule | Non-health-based | Resolved |
| March 6, 2025 | Public Notice | Non-health-based | Resolved |
| October 22, 2024 | Public Notice | Non-health-based | Resolved |
| July 1, 2024 | Nitrate | Non-health-based | Resolved |
| June 16, 2024 | E. COLI | Non-health-based | Resolved |
| December 1, 2022 | Lead and Copper Rule | Non-health-based | Resolved |
| October 12, 2022 | Public Notice | Non-health-based | Resolved |
| August 1, 2022 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| August 1, 2022 | TTHM | Non-health-based | Resolved |
| July 13, 2022 | Public Notice | Non-health-based | Unaddressed (current) |
| July 1, 2022 | Consumer Confidence Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Public Notice | Other (notice or report rule) | 4 | No |
| Public Notice | Monitoring & Reporting | 2 | No |
| Nitrate | Monitoring & Reporting | 1 | No |
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 1 | No |
| TTHM | Monitoring & Reporting | 1 | No |
| E. COLI | Monitoring & Reporting | 1 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.002 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by IA or modeled from parcel and building-footprint data.
- 52411 - Cedar Rapids
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Oak Valley (IA5784311) on EPA.gov.
Frequently Asked Questions
Is Oak Valley water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Oak Valley serve?
Oak Valley serves approximately 100 people across 1 ZIP code in Iowa.
Where does Oak Valley get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Oak Valley (IA): 11 EPA Violations. https://zipcheckup.com/water-system/ia5784311/
@misc{zipcheckup-water-system-ia5784311,
author = {{ZipCheckup}},
title = {{Oak Valley (IA): 11 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ia5784311/}
}
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
Oak Valley (EPA ID: IA5784311) - request the latest Consumer Confidence Report or ask about specific contaminants.