County · Maryland

Calvert County, Maryland: drinking water records

Name: Drinking water records for Calvert County, Maryland
Creator: U.S. Environmental Protection Agency
License: https://www.usa.gov/government-works

Explore EPA records for 30 community water systems across 12 ZIP codes in Calvert County, then find water-testing resources and available recent monitoring-station readings.

In focus30Community water systems

Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 4 of the 30 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

systems in EPA's PFAS survey

systems where PFAS was found

systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses

systems that have reached the lead action level

systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 30 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water system	People served	PFAS survey results	Health-based violations	Lead, 9 in 10 homes at or below
Chesapeake Ranch Estates MD0040004	9,500	240	0	0 ppbbelow the action level
Town of Chesapeake Beach MD0040003	5,000	180	0	0 ppbbelow the action level
Prince Frederick MD0040011	4,371	120	0	0 ppbbelow the action level
Solomons MD0040027	3,811	120	0	0 ppbbelow the action level
Town of North Beach MD0040030	3,000	0	1	0 ppbbelow the action level
The Calverton School MD1040022	461	0	1	0 ppbbelow the action level
Regency Manor Mobile Home Park MD0040202	224	0	1	0 ppbbelow the action level
B&l Mobile Home Park MD0040209	65	0	1	6.5 ppbbelow the action level
Pine Trailer Park MD0040210	65	0	1	0 ppbbelow the action level
Beaches Water Co-Operative MD0040009	2,000	0	0	1.5 ppbbelow the action level
Scientists Cliffs MD0040014	1,425	0	0	0 ppbbelow the action level
Chesapeake Heights (Bayside Forest) MD0040018	1,190	0	0	3 ppbbelow the action level
Summit/Highlands MD0040026	1,108	0	0	0 ppbbelow the action level
Cross Point Subdivision MD0040052	434	0	0	0 ppbbelow the action level
Cavalier Country MD0040002	381	0	0	0 ppbbelow the action level
Shores of Calvert MD0040015	361	0	0	0 ppbbelow the action level
Calvert Beach - Decatur Street MD0040024	350	0	0	0 ppbbelow the action level
St. Leonard MD0040013	350	0	0	0 ppbbelow the action level
Kenwood Beach MD0040007	338	0	0	0 ppbbelow the action level
Marley Run MD0040053	290	0	0	0 ppbbelow the action level
Paris Oaks / Days End MD0040010	251	0	0	0 ppbbelow the action level
Lakewood MD0040008	203	0	0	0 ppbbelow the action level
Western Shores MD0040016	200	0	0	0 ppbbelow the action level
Walnut Creek MD0040035	158	0	0	0 ppbbelow the action level
Hunting Hills MD0040006	124	0	0	0 ppbbelow the action level
Calvert Beach / Forest Trail MD0040020	100	0	0	2.4 ppbbelow the action level
White Sands MD0040017	82	0	0	0.8 ppbbelow the action level
Calvert Mobile Home Park MD0040206	80	0	0	9 ppbbelow the action level
Tara Subdivision MD0040034	68	0	0	0 ppbbelow the action level
Tapestry North MD0040205	60	0	0	4 ppbbelow the action level

USGS · Monitoring stations

The water, more recently.

Available station readings in Calvert County, Maryland. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-05

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-11

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-09-09

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed 2026-09-15

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in Calvert County

12ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

Broomes Island
Chesapeake Beach
Chesapeake Ranch Estates
Dunkirk
Huntingtown
Owings
Prince Frederick
Solomons
St. Leonard

Explore water-system records Find water-testing resources

View ZIP areas and understand coverage

20615Broomes Island
20629Solomons
20639Huntingtown
20657Chesapeake Ranch Estates
20676St. Leonard
20678Prince Frederick
20685St. Leonard
20688Solomons
20689Chesapeake Beach
20732Chesapeake Beach
20736Owings
20754Dunkirk

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASReading PFAS survey resultsWhat a detection, a reporting level and a yearly average mean in EPA’s PFAS survey records.LeadChoosing a lead filter2 systems here have reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near Calvert County

All Maryland counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.