Maryland · ZIP 20854 · EPA SC3260059

Is this in Potomac's water?

Mcgregor Downs MHP (Sc3260059) · serves 626 people · groundwater · 232 connections
9
violations on the federal EPA record
1
health-based — a protective limit exceeded
626
people drink this water every day

This system has 1 health-based violation on the EPA record — involving Coliform bacteria, Lead & Copper Rule, Surface Water Treatment. A limit meant to protect health, exceeded.

Coliform bacteria

The Revised Total Coliform Rule tracks coliform bacteria — an indicator that disease-causing organisms could be getting into the water.

Read the rule → EPA · Coliform Rule
Lead & Copper Rule

The Lead & Copper Rule requires utilities to test water at customer taps for lead and copper — metals that enter water from pipes and plumbing, not the source. Lead harms brain development in children; no level is considered safe.

Read the rule → EPA · Lead & Copper Rule
Surface Water Treatment

The Surface Water Treatment Rules require utilities using surface water (or groundwater under its influence) to filter and disinfect against microbes like Giardia, Legionella and viruses.

Read the rule → EPA · Surface Water Treatment Rules

The federal record.

RECORDmissed required testing or reportingLead & Copper Rule1994

The utility didn't complete required testing or paperwork on time. The water wasn't necessarily bad — but what isn't measured can't be caught.

Lead & Copper Rule: The Lead & Copper Rule requires utilities to test water at customer taps for lead and copper — metals that enter water from pipes and plumbing, not the source. Lead harms brain development in children; no level is considered safe.

Read the rule → EPA · Lead & Copper Rule
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
RECORDother violationSurface Water Treatment2005

A violation on the federal record outside the standard categories.

Surface Water Treatment: The Surface Water Treatment Rules require utilities using surface water (or groundwater under its influence) to filter and disinfect against microbes like Giardia, Legionella and viruses.

Read the rule → EPA · Surface Water Treatment Rules
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
RECORDmissed required testing or reportingLead & Copper Rule2013

The utility didn't complete required testing or paperwork on time. The water wasn't necessarily bad — but what isn't measured can't be caught.

Lead & Copper Rule: The Lead & Copper Rule requires utilities to test water at customer taps for lead and copper — metals that enter water from pipes and plumbing, not the source. Lead harms brain development in children; no level is considered safe.

Read the rule → EPA · Lead & Copper Rule
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
RECORDmissed required testing or reportingLead & Copper Rule2010

The utility didn't complete required testing or paperwork on time. The water wasn't necessarily bad — but what isn't measured can't be caught.

Lead & Copper Rule: The Lead & Copper Rule requires utilities to test water at customer taps for lead and copper — metals that enter water from pipes and plumbing, not the source. Lead harms brain development in children; no level is considered safe.

Read the rule → EPA · Lead & Copper Rule
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
RECORDmissed required testing or reporting2019

The utility didn't complete required testing or paperwork on time. The water wasn't necessarily bad — but what isn't measured can't be caught.

Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
RECORDother violationSurface Water Treatment2024

A violation on the federal record outside the standard categories.

Surface Water Treatment: The Surface Water Treatment Rules require utilities using surface water (or groundwater under its influence) to filter and disinfect against microbes like Giardia, Legionella and viruses.

Read the rule → EPA · Surface Water Treatment Rules
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
HEALTHexceeded a contaminant limitColiform bacteria2026

The water tested above a federal legal limit for this contaminant — the line the law itself draws.

Coliform bacteria: The Revised Total Coliform Rule tracks coliform bacteria — an indicator that disease-causing organisms could be getting into the water.

Read the rule → EPA · Coliform Rule
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
RECORDmissed required testing or reportingLead & Copper Rule2025

The utility didn't complete required testing or paperwork on time. The water wasn't necessarily bad — but what isn't measured can't be caught.

Lead & Copper Rule: The Lead & Copper Rule requires utilities to test water at customer taps for lead and copper — metals that enter water from pipes and plumbing, not the source. Lead harms brain development in children; no level is considered safe.

Read the rule → EPA · Lead & Copper Rule
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗
RECORDlate or missing reportColiform bacteria2026

A required report to regulators or the public was late or missing.

Coliform bacteria: The Revised Total Coliform Rule tracks coliform bacteria — an indicator that disease-causing organisms could be getting into the water.

Read the rule → EPA · Coliform Rule
Who is responsibleMcgregor Downs MHP (Sc3260059) · attn Magurne, Natalie · 762-333-5128 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD, Potomac ↗

Source: U.S. EPA Safe Drinking Water Information System (SDWIS), system SC3260059. “Compliant” means clearing federal limits — many unchanged for ~20 years. Health guidelines from independent scientists are often stricter. Results vary by home, plumbing and date.

Fix it, honestly.

Dissolved metals · nitrate

Reverse osmosis

NSF-58 certified under-sink RO — the only tech that broadly removes dissolved contaminants at the tap.

Chlorine · taste · odor

Catalytic carbon

NSF-42 whole-house carbon cuts chlorine, chloramine and the pool-water taste.

First step

Filter bottle

Certified grab-and-go protection while you decide on the whole-home fix.