Maryland · ZIP 20859 · EPA FL6291988

Is this in Potomac's water?

Windward Knoll MHP · serves 208 people · groundwater · 155 connections
11
violations on the federal EPA record
0
health-based — a protective limit exceeded
208
people drink this water every day

On paper this system is compliant, but the EPA record shows 11 violations — mostly missed testing or reporting. What isn't measured can't be caught.

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
Haloacetic Acids (HAA5)

Haloacetic acids are disinfection byproducts formed when chlorine treats water; five are federally capped as a group.

Read the rule → EPA · Disinfection Byproducts Rules
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
Nitrate

Nitrate comes from fertilizer, septic and wastewater. Above the limit it can starve infants of oxygen and is linked to cancer risk.

Read the rule → EPA · Safe Drinking Water Act standards
Total Trihalomethanes (TTHM)

Total trihalomethanes are cancer-linked byproducts formed when chlorine disinfects water; federal rules cap them and require regular testing.

Read the rule → EPA · Disinfection Byproducts Rules

The federal record.

RECORDmissed required testing or reportingNitrate2022

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.

Nitrate: Nitrate comes from fertilizer, septic and wastewater. Above the limit it can starve infants of oxygen and is linked to cancer risk.

Read the rule → EPA · Safe Drinking Water Act standards
Who is responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required testing or reportingLead & Copper Rule2022

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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required testing or reporting2023

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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required monitoringColiform bacteria2023

Required monitoring wasn't performed on schedule. No data means no proof either way.

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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required testing or reportingHaloacetic Acids (HAA5)2023

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.

Haloacetic Acids (HAA5): Haloacetic acids are disinfection byproducts formed when chlorine treats water; five are federally capped as a group.

Read the rule → EPA · Disinfection Byproducts Rules
Who is responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required testing or reportingTotal Trihalomethanes (TTHM)2023

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.

Total Trihalomethanes (TTHM): Total trihalomethanes are cancer-linked byproducts formed when chlorine disinfects water; federal rules cap them and require regular testing.

Read the rule → EPA · Disinfection Byproducts Rules
Who is responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required monitoringColiform bacteria2024

Required monitoring wasn't performed on schedule. No data means no proof either way.

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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required testing or reporting2024

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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required monitoringColiform bacteria2025

Required monitoring wasn't performed on schedule. No data means no proof either way.

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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗
RECORDmissed required testing or reporting2025

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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, 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 responsibleWindward Knoll MHP · attn Winward Knolls Fl Mhc LLC · 202-838-6471 — the utility is required to answer questions about its record. Ask them about it.Their office: 10221 RIVER ROAD #59831, Potomac ↗

Source: U.S. EPA Safe Drinking Water Information System (SDWIS), system FL6291988. “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.