WINDWARD KNOLL MHP

POTOMAC, MD · ~208 people served

Check your exact address → POTOMAC overview

100

Excellent

PurityRadar safety score

PWSID

FL6291988

State

Maryland

City

POTOMAC

Population served

208

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Unaddressed

Monitoring & reporting · EPA contaminant 3014 began Apr 2025 Resolved

Monitoring · Lead & Copper Rule began Apr 2025 Resolved

Monitoring · Lead & Copper Rule began Dec 2024 Resolved

Monitoring & reporting · EPA contaminant 3014 began Dec 2024 Resolved

Monitoring · Lead & Copper Rule began Nov 2023 Resolved

Monitoring & reporting · EPA contaminant 3014 began Nov 2023 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2023 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2022 Resolved

Monitoring & reporting · Nitrate began Jan 2022 Resolved

Monitoring & reporting · Gross alpha began Jan 1987 Resolved

Recent enforcement actions

State action · SOX Jun 2025
State action · SIF Jun 2025
State action · SIA May 2025
State action · SIE May 2025
State action · SOX Mar 2025
State action · SIF Feb 2025
State action · SOX Feb 2025
State action · SIA Jan 2025

This profile is built from EPA public records for system FL6291988 — 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.