Historical Compliance Records NV 21 HEALTH-BASED VIOLATIONS ON RECORD

Silver Knolls Mutual Water Company

EPA ID: NV0004021 ยท 120 people served ยท 2 ZIP codes

ZipCheckup's reading of EPA records for Silver Knolls Mutual Water Company (NV0004021): 21 health-based violations recorded since 2021. Within the EPA violation records on file, Silver Knolls Mutual Water Company accumulated 22 violations, and every finding is recorded as resolved; the utility supplies water to approximately 120 people. Resolution of past violations is not a statement about current water quality.

Data: EPA SDWIS

120
People Served
2
ZIP Codes Served
22
Violations (since 2021)
Groundwater
Water Source
Below the reporting limit
Most recent lead 90th percentile on record (monitoring period ending 2024-12-31)
2
Contaminants Flagged
$404K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Silver Knolls Mutual Water Company Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$88,212
Median Household Income
59,944
Population of ZIP Codes Served (Census)
26%
Disadvantaged Population
40th
Poverty Percentile
30th
Energy Burden Percentile
29%
Pre-1986 Housing

The ZIP codes associated with Silver Knolls Mutual Water Company have a median household income of $88,212 and about 59,944 residents live in those ZIP codes (Census; not the number of people this system supplies).

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Silver Knolls Mutual Water Company'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.

Elevated Risk
Source Contamination Risk
20th
Wastewater Discharge Proximity
20th
Superfund Site Proximity

Infrastructure Risk

26 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
42 yr
Est. Remaining Life
Stable
Decay Status
Installed 38% of expected lifespan used (estimate) End of life

PFAS in ZIP Codes This System Serves

PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 16 detections recorded. 6 detections are above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.

Health concern: Exposure to certain PFAS has been associated with some cancers and with immune and developmental effects; effects differ by compound. Many PFAS break down very slowly in the environment.
Recommended filter: An activated carbon filter certified under NSF/ANSI 53 or a reverse osmosis system certified under NSF/ANSI 58 for the PFAS listed in its certification. Find the right filter โ†’

Comparable Water Systems

Similar-sized systems in Nevada

3 violations
Pleasant Valley
110 people
27 violations
Old Washoe Estates
135 people
0 violations
Sunset Mhp
90 people
1 violation
Sunrise Estates
90 people
0 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Water Filtration PFAS Treatment
Water Filtration $600
PFAS Treatment $600
Total Estimated Cost $1,200

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.

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $1,500

Annual per household (ZipCheckup estimate)

Estimated Property Value Decline $20,185

5% of median home value (ZipCheckup estimate)

PFAS Exposure - Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$17,760
10 years
$35,520
20 years
$71,040

Compare: Estimated remediation cost is $1,200 (one-time) vs. $35,520 in estimated inaction costs over 10 years.

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

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

No current noncompliance in the accepted 2026Q2 snapshot. The 22 records in the 2021-2026 window are classified as resolved or archived, not current.

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 Arsenic Health-based Archived
October 1, 2025 Arsenic Health-based Archived
July 1, 2025 Arsenic Health-based Archived
April 1, 2025 Arsenic Health-based Archived
January 1, 2025 Arsenic Health-based Archived
October 1, 2024 Arsenic Health-based Archived
July 1, 2024 Arsenic Health-based Archived
April 1, 2024 Arsenic Health-based Archived
January 1, 2024 Arsenic Health-based Archived
October 1, 2023 Arsenic Health-based Archived
July 1, 2023 Arsenic Health-based Archived
April 1, 2023 Arsenic Health-based Archived
January 1, 2023 Arsenic Health-based Archived
October 1, 2022 Arsenic Health-based Archived
July 1, 2022 Arsenic Health-based Archived
April 1, 2022 Arsenic Health-based Archived
January 1, 2022 Arsenic Health-based Archived
October 1, 2021 Arsenic Health-based Archived
July 1, 2021 Arsenic Health-based Archived
April 1, 2021 Arsenic Health-based Archived

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Arsenic MCL Violation 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
Below the reporting limit No 2024-12-31

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 $20โ€“$50 (DIY kit) ยท Professional inspection: $150โ€“$400

Find the Right Water Filter

Free 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 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 available EPA compliance records 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

Should I use a water filter? ▼
Given 22 recorded violations, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does Silver Knolls Mutual Water Company serve? ▼
Silver Knolls Mutual Water Company serves approximately 120 people with drinking water across 2 ZIP codes.
What is Silver Knolls Mutual Water Company's water source? ▼
Silver Knolls Mutual Water Company draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Silver Knolls Mutual Water Company's water? ▼
The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero. This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with Silver Knolls Mutual Water Company? ▼
The ZIP codes mapped to Silver Knolls Mutual Water Company have a median household income of $88,212 (Census ZIP-code estimate). Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does Silver Knolls Mutual Water Company get its water? ▼
Silver Knolls Mutual Water Company'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. The available violation history and environmental indicators place this system in the elevated review category; they do not measure current source contamination.

How to cite this page

APA ZipCheckup. (n.d.). Silver Knolls Mutual Water Company: 21 Health Violations. https://zipcheckup.com/water-system/nv0004021/
BibTeX
@misc{zipcheckup-water-system-nv0004021,
  author = {{ZipCheckup}},
  title  = {{Silver Knolls Mutual Water Company: 21 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/nv0004021/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

Silver Knolls Mutual Water Company (EPA ID: NV0004021) - request the latest Consumer Confidence Report or ask about specific contaminants.

Home › Water Systems › Nevada › Silver Knolls Mutual Water Company

Get safety alerts for Silver Knolls Mutual Water Company, Nevada

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Violations found - check filter options Free tool - no phone call required.