Maryland · ZIP 20602 · EPA MD0080034

Is this in Waldorf's water?

Oak Hill Water Company, LLC · serves 180 people · groundwater · 55 connections
10
violations on the federal EPA record
0
health-based — a protective limit exceeded
180
people drink this water every day

On paper this system is compliant, but the EPA record shows 10 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
Ground Water Rule

The Ground Water Rule protects wells and aquifer-fed systems from fecal contamination through source-water monitoring and fixes.

Read the rule → EPA · Ground Water 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
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
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.

RECORDother violationSurface Water Treatment2007

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDlate or missing reportGround Water Rule2025

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

Ground Water Rule: The Ground Water Rule protects wells and aquifer-fed systems from fecal contamination through source-water monitoring and fixes.

Read the rule → EPA · Ground Water Rule
Who is responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDother violationSurface Water Treatment2008

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDmissed required testing or reportingLead & Copper Rule2017

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDmissed required testing or reportingTotal Trihalomethanes (TTHM)2015

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDmissed required testing or reportingHaloacetic Acids (HAA5)2015

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDmissed required testing or reportingNitrate2017

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDmissed required testing or reporting2016

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDmissed required testing or reportingLead & Copper Rule2020

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗
RECORDmissed required monitoringColiform bacteria2020

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 responsibleOak Hill Water Company, LLC · attn Crooks, Edward · 410-353-0383 — the utility is required to answer questions about its record. Ask them about it.Their office: WATER SERVICES, INC., Waldorf ↗

Source: U.S. EPA Safe Drinking Water Information System (SDWIS), system MD0080034. “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.