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Water system · PWSID NV0004021

SILVER KNOLLS MUTUAL WATER COMPANY

RENO, NV · ~120 people served

Check your exact address → RENO overview
100
Excellent
PurityRadar safety score

PWSID

NV0004021

State

Nevada

City

RENO

Population served

120

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

174

Violations on record

1

Unaddressed

7

Health-based

166

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Mar 2018 Unaddressed
Reporting · Lead & Copper Rule began Mar 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2015 Resolved
Monitoring & reporting · Total coliform began Jun 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2015 Resolved
Other began Jan 2015 Resolved
Monitoring & reporting · Total coliform began Aug 2014 Resolved

Recent enforcement actions

  • State action · SIF Jan 2026
  • State action · SIF Oct 2025
  • State action · SIF Jan 2025
  • State action · SIF Oct 2023
  • State action · SIF Jul 2023
  • State action · SIF Apr 2023
  • State action · SIF Jul 2022
  • State action · SIF Apr 2022

This profile is built from EPA public records for system NV0004021 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.