Is This In Your Water?
ZIP 21561 · Swanton, MD · EPA MD0110225

White Oak Mobile Home Park: water report for ZIP 21561

System name
White Oak Mobile Home Park
EPA PWS ID
MD0110225
Location
Swanton, MD
Population served
32
Water source
Ground water
Primary EPA source
EPA ECHO record for MD0110225

Make sure this is the system tied to your address before using these results to make a decision about your own water. A ZIP code is not a street address.

EPA lab monitoring (UCMR 5)

EPA has no UCMR 5 (PFAS and lithium) monitoring results on file for this system.

UCMR 5 results are monitoring data, not a compliance determination. PFAS compliance is governed by separate EPA drinking-water rules. Some PFAS rule changes are proposed for 2026 — see what's proposed.

Lead at customer taps

Lead at sampled customer taps, 90th percentile (Jan. 2017–Dec. 2019): 1.4 ppb. EPA's current action level is 15 ppb; its health goal (MCLG) is 0.

Lead is regulated with an action level rather than a standard MCL. EPA's lead action level is 15 ppb today; the Lead and Copper Rule Improvements lower it to 10 ppb starting Nov. 1, 2027.

Violations on the federal record

The EPA record shows 26 violations, 5 health-based.

TypeRule / contaminantSince
Record · other violationSurface Water Treatment2009
Record · other violationSurface Water Treatment2013
Record · missed required testing or reportingLead & Copper Rule2014
Health-based · exceeded a contaminant limitArsenic2015
Record · other violationSurface Water Treatment2011
Record · other violationSurface Water Treatment2012
Health-based · exceeded a contaminant limitArsenic2015
Record · other violationSurface Water Treatment2003
Health-based · exceeded a contaminant limitArsenic2016
Health-based · exceeded a contaminant limitArsenic2016
Record · other violationSurface Water Treatment2017
Record · other violationSurface Water Treatment2017

On a private well? EPA public-system data does not describe your individual well. Test your water directly.

What the numbers mean

EPA uses two different benchmarks: the legal limit (MCL) and the health goal (MCLG). They are not always the same number. Read EPA's explanation →

Open the interactive report →What the government says

Sources: U.S. EPA SDWIS (system record and violations, queried live) · EPA SDWIS lead & copper 90th-percentile results. EPA data can lag the latest tests.