Silver Knolls Mutual Water Company
EPA ID: NV0004021 · 120 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Silver Knolls Mutual Water Company (NV0004021): 21 past health-based violations, since resolved. A total of 22 EPA violations spanning the past five monitoring years sit on Silver Knolls Mutual Water Company's record - every finding has been officially cleared, and the supplier now holds current compliance status for its service population of approximately 120 people, with no outstanding enforcement of any kind.
Data: EPA SDWIS
Service Area Map
Coverage area for Silver Knolls Mutual Water Company Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Silver Knolls Mutual Water Company serves a community with a median household income of $88,212 and an estimated 59,944 residents across its service area.
💧 Where Does Your Water Come From?
Silver Knolls Mutual Water Company'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.
Infrastructure Risk
Detected Contaminants
How Silver Knolls Mutual Water Company compares to EPA limits
What This Means For You
Barium at 21 mg/L exceeds the EPA maximum of 2 mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 16 detections recorded. 6 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Comparable Water Systems
Similar-sized systems in Nevada
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
Silver Knolls Mutual Water Company (EPA ID: NV0004021) is a community water system in Nevada that serves approximately 120 people from groundwater sources.
This system provides water to 2 ZIP codes across 1 community.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 21 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 |
|---|---|---|---|
| January 1, 2026 | Barium | Health-based | Archived |
| October 1, 2025 | Barium | Health-based | Archived |
| July 1, 2025 | Barium | Health-based | Archived |
| April 1, 2025 | Barium | Health-based | Archived |
| January 1, 2025 | Barium | Health-based | Archived |
| October 1, 2024 | Barium | Health-based | Archived |
| July 1, 2024 | Barium | Health-based | Archived |
| April 1, 2024 | Barium | Health-based | Archived |
| January 1, 2024 | Barium | Health-based | Archived |
| October 1, 2023 | Barium | Health-based | Archived |
| July 1, 2023 | Barium | Health-based | Archived |
| April 1, 2023 | Barium | Health-based | Archived |
| January 1, 2023 | Barium | Health-based | Archived |
| October 1, 2022 | Barium | Health-based | Archived |
| July 1, 2022 | Barium | Health-based | Archived |
| April 1, 2022 | Barium | Health-based | Archived |
| January 1, 2022 | Barium | Health-based | Archived |
| October 1, 2021 | Barium | Health-based | Archived |
| July 1, 2021 | Barium | Health-based | Archived |
| April 1, 2021 | Barium | Health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Barium | Inorganic | 21 | Yes |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
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 NV or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Silver Knolls Mutual Water Company (NV0004021) on EPA.gov.
Frequently Asked Questions
Is Silver Knolls Mutual Water Company water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Silver Knolls Mutual Water Company; its 22 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Silver Knolls Mutual Water Company serve?
Silver Knolls Mutual Water Company serves approximately 120 people across 2 ZIP codes in Nevada.
Where does Silver Knolls Mutual Water Company get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Silver Knolls Mutual Water Company: 21 Health Violations. https://zipcheckup.com/water-system/nv0004021/
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author = {{ZipCheckup}},
title = {{Silver Knolls Mutual Water Company: 21 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nv0004021/}
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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
Silver Knolls Mutual Water Company (EPA ID: NV0004021) - request the latest Consumer Confidence Report or ask about specific contaminants.