Cedar Lake - Robins Nest
EPA ID: IN5245067 · 950 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Cedar Lake - Robins Nest (IN5245067): a lead 90th-percentile reading above the EPA action level. Looking at the EPA enforcement file for Cedar Lake - Robins Nest, 26 violations are listed in the dataset, and none is recorded as open for the 950 people in its service area.
Data: EPA SDWIS
Service Area Map
Coverage area for Cedar Lake - Robins Nest Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Cedar Lake - Robins Nest have a median household income of $78,659 and about 16,910 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 48% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 52% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). 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?
Cedar Lake - Robins Nest'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 Indiana
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
Cedar Lake - Robins Nest (EPA ID: IN5245067) is a community water system in Indiana that serves approximately 950 people from groundwater sources.
This system serves ZIP code 46303 in Cedar Lake.
Violation History
Status breakdown for accepted records with record years 2021-2026: 20 resolved, 6 archived, 0 addressed, and 0 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 |
|---|---|---|---|
| October 1, 2025 | Lead and Copper Rule | Non-health-based | Resolved |
| July 1, 2025 | Consumer Confidence Rule | Non-health-based | Resolved |
| July 1, 2025 | Consumer Confidence Rule | Non-health-based | Resolved |
| January 1, 2025 | TTHM | Non-health-based | Archived |
| January 1, 2025 | Total Haloacetic Acids (HAA5) | Non-health-based | Archived |
| October 7, 2024 | Consumer Confidence Rule | Non-health-based | Resolved |
| July 1, 2024 | Gross Alpha | Non-health-based | Resolved |
| July 1, 2024 | Radium-226 | Non-health-based | Resolved |
| July 1, 2024 | Radium-228 | Non-health-based | Resolved |
| January 1, 2024 | TTHM | Non-health-based | Archived |
| January 1, 2024 | Total Haloacetic Acids (HAA5) | Non-health-based | Archived |
| January 1, 2024 | Arsenic | Non-health-based | Resolved |
| January 1, 2024 | Barium | Non-health-based | Resolved |
| January 1, 2024 | Cadmium | Non-health-based | Resolved |
| January 1, 2024 | Chromium | Non-health-based | Resolved |
| January 1, 2024 | CYANIDE | Non-health-based | Resolved |
| January 1, 2024 | Fluoride | Non-health-based | Resolved |
| January 1, 2024 | Mercury | Non-health-based | Resolved |
| January 1, 2024 | Fluoride | Non-health-based | Resolved |
| January 1, 2024 | Antimony, Total | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 3 | No |
| TTHM | Monitoring & Reporting | 3 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 3 | No |
| Arsenic | Monitoring & Reporting | 1 | No |
| Arsenic | Monitoring & Reporting | 1 | No |
| Barium | Monitoring & Reporting | 1 | No |
| Cadmium | Monitoring & Reporting | 1 | No |
| CYANIDE | Monitoring & Reporting | 1 | No |
| Chromium | Monitoring & Reporting | 1 | No |
| Antimony, Total | Monitoring & Reporting | 1 | No |
| Chromium | Monitoring & Reporting | 1 | No |
| CYANIDE | Monitoring & Reporting | 1 | No |
| Antimony, Total | Monitoring & Reporting | 1 | No |
| Beryllium, Total | Other Violation | 1 | No |
| Thallium, Total | Other Violation | 1 | No |
Lead & Copper
Latest reported 90th-percentile lead result for this PWSID: 0.018 mg/L (2006-06-30).
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 IN or modeled from parcel and building-footprint data.
- 46303 - Cedar Lake
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Cedar Lake - Robins Nest (IN5245067) on EPA.gov.
Frequently Asked Questions
Is Cedar Lake - Robins Nest water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Cedar Lake - Robins Nest; its 26 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Cedar Lake - Robins Nest serve?
Cedar Lake - Robins Nest serves approximately 950 people across 1 ZIP code in Indiana.
Where does Cedar Lake - Robins Nest get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Cedar Lake - Robins Nest (IN): 26 EPA Violations. https://zipcheckup.com/water-system/in5245067/
@misc{zipcheckup-water-system-in5245067,
author = {{ZipCheckup}},
title = {{Cedar Lake - Robins Nest (IN): 26 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/in5245067/}
}
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
Cedar Lake - Robins Nest (EPA ID: IN5245067) - request the latest Consumer Confidence Report or ask about specific contaminants.