County · Maryland
Charles County, Maryland: drinking water records
Explore EPA records for 49 community water systems across 22 ZIP codes in Charles County, then find water-testing resources and available recent monitoring-station readings.
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 6 of the 49 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
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 49 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 | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Waldorf - Charles County DPW MD0080049 | 84,296 | 1,110 | 3 | 0 | 0 ppbbelow the action level |
| Town of la Plata MD0080025 | 11,535 | 270 | 0 | 0 | 0 ppbbelow the action level |
| Bryans Road MD0080033 | 6,260 | 240 | 0 | 0 | 0 ppbbelow the action level |
| Town of Indian Head MD0080020 | 4,100 | 180 | 0 | 0 | 0 ppbbelow the action level |
| Naval Support Facility, Indian Head MD0080058 | 3,321 | 240 | 0 | 0 | 5.7 ppbbelow the action level |
| Du Mar Estates Water Company MD0080010 | 150 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Independence Village MD0080019 | 88 | 0 | 0 | 1 | 1.2 ppbbelow the action level |
| Bellewood Water Association MD0080006 | 75 | 0 | 0 | 1 | 0 ppbbelow the action level |
| White Plains 2 Mhp/Jack Blair MD0080208 | 70 | 60 | 0 | 0 | 2.7 ppbbelow the action level |
| Thunderbird Motel MD0080069 | 60 | 0 | 0 | 1 | 2.4 ppbbelow the action level |
| Garden Estates Central Water MD0080015 | 55 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Laurel Water Supply MD0080026 | 50 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Potomac Heights MD0080038 | 1,800 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Swan Point MD0080046 | 945 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Cliffton on the Potomac MD0080009 | 744 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Hunters Brooke/Falcon Ridge Subd MD0080083 | 614 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Charles County Gardens Water MD0080008 | 551 | 0 | 0 | 0 | 1.8 ppbbelow the action level |
| Benedict MD0080062 | 376 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Kings Manor - White Plains Water Co, INC MD0080024 | 372 | 0 | 0 | 0 | 2.4 ppbbelow the action level |
| Idlewood Park MD0080205 | 320 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Bel Alton MD0080005 | 311 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Chapel Point Wds/ Jude House/ Comm Ctr MD0080064 | 280 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Aqualand Campground MD1081005 | 240 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Ellenwood MD0080057 | 229 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Red Hill Water Company, INC. MD0080040 | 200 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Mariellen Park MD0080028 | 184 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Oak Hill Water Company, LLC MD0080034 | 180 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Mount Carmel Woods MD0080030 | 175 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Newtown Village MD0080032 | 170 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pomfret Estates - Utilco, INC. MD0080037 | 150 | 0 | 0 | 0 | 1.5 ppbbelow the action level |
| Turkey Hill Water Company MD0080048 | 150 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pine Hill Water Company MD0080036 | 140 | 0 | 0 | 0 | 2.6 ppbbelow the action level |
| Trimac Water Company - Forest Park MD0080013 | 139 | 0 | 0 | 0 | 1.5 ppbbelow the action level |
| Green Meadows Water Company MD0080017 | 132 | 0 | 0 | 0 | 1.9 ppbbelow the action level |
| Beantown Park- Woodley Road MD0080004 | 127 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Pomonkey Water Company - Ford Heights MD0080012 | 125 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| Newtown Estates - Tip Hill Water Co. MD0080031 | 110 | 0 | 0 | 0 | 0.7 ppbbelow the action level |
| White Plains 1 Mhp/Smittys MD0080207 | 100 | 0 | 0 | 0 | 9 ppbbelow the action level |
| Spring Valley MD0080043 | 91 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Avon Crest MD0080002 | 79 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Banks Odee MD0080003 | 65 | 0 | 0 | 0 | 0.8 ppbbelow the action level |
| Southview Wise MD0080041 | 61 | 0 | 0 | 0 | 1.3 ppbbelow the action level |
| Hawthorne Water Supply, INC MD0080018 | 60 | 0 | 0 | 0 | 1.9 ppbbelow the action level |
| Parkway Subdivision Water Company MD0080035 | 50 | 0 | 0 | 0 | 0 ppbbelow the action level |
| West White Plains MD0080051 | 50 | 0 | 0 | 0 | 1.7 ppbbelow the action level |
| Matthews Manor MD0080027 | 45 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Oakwood MD0080055 | 45 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Thunderbird Apartments MD1080029 | 40 | 0 | 0 | 0 | 2.4 ppbbelow the action level |
| Pomunk Water Company Distribution System MD0080084 | 340 | 0 | 0 | 0 | not reported |
USGS · Monitoring stations
The water, more recently.
Available station readings in Charles 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.
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.
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.
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.
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 reportsResource 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 Charles County
22ZIP 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
- Benedict
- Bensville
- Bryans Road
- Bryantown
- Charlotte Hall
- Cobb Island
- Hughesville
- La Plata
- Pomfret
- Port Tobacco Village
- Rock Point
- Waldorf
View ZIP areas and understand coverage
- 20601Waldorf
- 20602Waldorf
- 20603Bensville
- 20611
- 20612Benedict
- 20616Bryans Road
- 20617Bryantown
- 20622Charlotte Hall
- 20625Cobb Island
- 20632
- 20637Hughesville
- 20640Bryans Road
- 20645
- 20646La Plata
- 20658
- 20661Cobb Island
- 20662
- 20664Rock Point
- 20675Pomfret
- 20677Port Tobacco Village
- 20693
- 20695Waldorf
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.
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.