Cedar Lake - Robins Nest
EPA ID: IN5245067 · 950 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Cedar Lake - Robins Nest (IN5245067): 26 EPA violations in the last five years. Over the past five years, Cedar Lake - Robins Nest recorded 26 violations, all subsequently resolved through the EPA enforcement process - the supplier currently operates in good standing, with no active actions on file for its 950 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Cedar Lake - Robins Nest Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Cedar Lake - Robins Nest serves a community with a median household income of $78,659 and an estimated 16,910 residents across its service area. Approximately 48% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 52% 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?
Cedar Lake - Robins Nest'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.
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
Detected Contaminants
How Cedar Lake - Robins Nest compares to EPA limits
What This Means For You
Mercury at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Kidney damage, neurological impairment. Consider activated carbon (GAC) filtration.
Cadmium at 1 mg/L exceeds the EPA maximum of 0.005 mg/L. Kidney damage accumulating over lifetime; probable carcinogen. Consider reverse osmosis filtration.
Haloacetic Acids (HAA5) at 3 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 3 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Selenium at 1 mg/L exceeds the EPA maximum of 0.05 mg/L. Hair & nail loss, nerve damage, liver & kidney damage. Consider reverse osmosis filtration.
Mercury was detected in this water system. activated carbon (GAC) 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
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 | Stage 1 DBP Rule | Non-health-based | Resolved |
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| January 1, 2025 | Haloacetic Acids (HAA5) | Non-health-based | Archived |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Non-health-based | Archived |
| October 7, 2024 | Surface Water Treatment 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 | Haloacetic Acids (HAA5) | Non-health-based | Archived |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Non-health-based | Archived |
| 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 | Fluoride | Non-health-based | Resolved |
| January 1, 2024 | Selenium | Non-health-based | Resolved |
| January 1, 2024 | Nickel | Non-health-based | Resolved |
| January 1, 2024 | Nitrite | Non-health-based | Resolved |
| January 1, 2024 | Contaminant 1036 | Non-health-based | Resolved |
| January 1, 2024 | Mercury | 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 Trihalomethanes (TTHM) | Disinfection Byproducts | 3 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 3 | No |
| Surface Water Treatment Rule | Treatment Failure | 3 | No |
| Barium | Inorganic | 1 | No |
| Cadmium | Inorganic | 1 | No |
| Chromium | Inorganic | 1 | No |
| Fluoride | Inorganic | 1 | No |
| Selenium | Inorganic | 1 | No |
| Nickel | Inorganic | 1 | No |
| Nitrite | Inorganic | 1 | No |
| Contaminant 1036 | Other Violation | 1 | No |
| Contaminant 1045 | Other Violation | 1 | No |
| Mercury | Inorganic | 1 | No |
| Contaminant 1075 | Other Violation | 1 | No |
| Contaminant 1085 | Other Violation | 1 | No |
Lead & Copper
No reported lead measurement appears for this PWSID in the accepted LCR snapshot. Absence of a reported measurement is not a measured zero.
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: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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 the full compliance record 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/
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author = {{ZipCheckup}},
title = {{Cedar Lake - Robins Nest (IN): 26 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/in5245067/}
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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.