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Maryland · ZIP 20678 · EPA MD0040035

Is this in Prince Frederick's water?

Walnut Creek · serves 158 people · groundwater · 56 connections
3
violations on the federal EPA record
0
health-based — a protective limit exceeded
158
people drink this water every day

On paper this system is compliant, but the EPA record shows 3 violations — mostly missed testing or reporting. 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
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.

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 responsibleWalnut Creek · attn Hall, Christopher · 410-535-1600 — the utility is required to answer questions about its record. Ask them about it.Their office: CALVERT COUNTY DPW WATER AND SEWERAGE, Prince Frederick ↗
RECORDmissed required testing or reportingLead & Copper Rule2014›

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 responsibleWalnut Creek · attn Hall, Christopher · 410-535-1600 — the utility is required to answer questions about its record. Ask them about it.Their office: CALVERT COUNTY DPW WATER AND SEWERAGE, Prince Frederick ↗
RECORDmissed required testing or reportingLead & Copper Rule2011›

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 responsibleWalnut Creek · attn Hall, Christopher · 410-535-1600 — the utility is required to answer questions about its record. Ask them about it.Their office: CALVERT COUNTY DPW WATER AND SEWERAGE, Prince Frederick ↗

Source: U.S. EPA Safe Drinking Water Information System (SDWIS), system MD0040035. “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.

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