Maryland · ZIP 20814 · EPA MD0030204

Is this in Bethesda's water?

Granite Mobile Home Park · serves 96 people · groundwater · 52 connections
11
violations on the federal EPA record
0
health-based — a protective limit exceeded
96
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.

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 Rule2008

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDother violationSurface Water Treatment2013

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDother violationSurface Water Treatment2011

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDother violationSurface Water Treatment2012

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDother violationSurface Water Treatment2012

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDmissed required testing or reportingLead & Copper Rule2015

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDmissed required testing or reportingLead & Copper Rule2005

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDother violationSurface Water Treatment2003

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
RECORDother violationSurface Water Treatment2009

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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗
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 responsibleGranite Mobile Home Park · attn Cronin, Christian P. · 202-754-0705 — the utility is required to answer questions about its record. Ask them about it.Their office: El Rancho MHC, LLC, Bethesda ↗

Source: U.S. EPA Safe Drinking Water Information System (SDWIS), system MD0030204. “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.