June 17, 2026
Nitrates in Maryland Drinking Water 2026
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Nitrates in Maryland Drinking Water 2026
Nitrates contamination has been detected in drinking water systems across Maryland. High nitrate levels cause methemoglobinemia (blue baby syndrome) in infants. EPA MCL is 10 mg/L. Our analysis of Maryland water quality reports found Nitrates present in 354 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse Nitrates filters at PureWaterGuys.
Cities in Maryland with Nitrates Detected
The following 354 water systems in Maryland reported Nitrates in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| Aberdeen Md Water Quality Report 2026 | View Report |
| Aberdeen Proving Ground Md Water Quality Report 2026 | View Report |
| Abingdon Md Water Quality Report 2026 | View Report |
| Abingdoo Md Water Quality Report 2026 | View Report |
| Accident Md Water Quality Report 2026 | View Report |
| Accokeek Md Water Quality Report 2026 | View Report |
| Alexandria Md Water Quality Report 2026 | View Report |
| Allen Md Water Quality Report 2026 | View Report |
| Andrews Afb Md Water Quality Report 2026 | View Report |
| Andrewws Air Force Base Md Water Quality Report 2026 | View Report |
| Annaplis Md Water Quality Report 2026 | View Report |
| Annapolis Md Water Quality Report 2026 | View Report |
| Arnold Md Water Quality Report 2026 | View Report |
| Avenue Md Water Quality Report 2026 | View Report |
| Ba Toud Md Water Quality Report 2026 | View Report |
| Bainbridge Md Water Quality Report 2026 | View Report |
| Baltimore Md Water Quality Report 2026 | View Report |
| Barton Md Water Quality Report 2026 | View Report |
| Beantown Md Water Quality Report 2026 | View Report |
| Bel Air Md Water Quality Report 2026 | View Report |
| Bel Alton Md Water Quality Report 2026 | View Report |
| Belcamp Md Water Quality Report 2026 | View Report |
| Belle Mead Md Water Quality Report 2026 | View Report |
| Berlin Md Water Quality Report 2026 | View Report |
| Berwyn Md Water Quality Report 2026 | View Report |
| Bethesda Md Water Quality Report 2026 | View Report |
| Betterton Md Water Quality Report 2026 | View Report |
| Bishopville Md Water Quality Report 2026 | View Report |
| Bloomington Md Water Quality Report 2026 | View Report |
| Blue Ridge Summit Md Water Quality Report 2026 | View Report |
| Boonsboro Md Water Quality Report 2026 | View Report |
| Bowie Md Water Quality Report 2026 | View Report |
| Brandywine Md Water Quality Report 2026 | View Report |
| Broadneck Md Water Quality Report 2026 | View Report |
| Brunswick Md Water Quality Report 2026 | View Report |
| Bryan Road Md Water Quality Report 2026 | View Report |
| Bryans Rd Md Water Quality Report 2026 | View Report |
| Bryans Road Md Water Quality Report 2026 | View Report |
| Bwi Airport Md Water Quality Report 2026 | View Report |
| California Md Water Quality Report 2026 | View Report |
| Cambridge Md Water Quality Report 2026 | View Report |
| Camp Spring Md Water Quality Report 2026 | View Report |
| Camp Springs Md Water Quality Report 2026 | View Report |
| Cape St Clair Md Water Quality Report 2026 | View Report |
| Cascade Md Water Quality Report 2026 | View Report |
| Cecilton Md Water Quality Report 2026 | View Report |
| Centerville Md Water Quality Report 2026 | View Report |
| Centreville Md Water Quality Report 2026 | View Report |
| Centrevll Md Water Quality Report 2026 | View Report |
| Charlestown Md Water Quality Report 2026 | View Report |
| Charlotte Hall Md Water Quality Report 2026 | View Report |
| Cheltenham Md Water Quality Report 2026 | View Report |
| Cheltenhm Md Water Quality Report 2026 | View Report |
| Chesapeake Bch Md Water Quality Report 2026 | View Report |
| Chesapeake Beach Md Water Quality Report 2026 | View Report |
| Chesapeake City Md Water Quality Report 2026 | View Report |
| Chester Md Water Quality Report 2026 | View Report |
| Chestertown Md Water Quality Report 2026 | View Report |
| Chevy Chase Md Md Water Quality Report 2026 | View Report |
| Childs Md Water Quality Report 2026 | View Report |
| Chrisfield Md Water Quality Report 2026 | View Report |
| Church Hill Md Water Quality Report 2026 | View Report |
| Claiborne Md Water Quality Report 2026 | View Report |
| Clairborne Md Water Quality Report 2026 | View Report |
| Claireborne Md Water Quality Report 2026 | View Report |
| Clarksburg Md Water Quality Report 2026 | View Report |
| Clarksville Md Water Quality Report 2026 | View Report |
| Clear Sprg Md Water Quality Report 2026 | View Report |
| Clinton Md Water Quality Report 2026 | View Report |
| Cmp Sprgs Md Water Quality Report 2026 | View Report |
| Cockeysville Md Water Quality Report 2026 | View Report |
| Colora Md Water Quality Report 2026 | View Report |
| Columbia Md Water Quality Report 2026 | View Report |
| Conowingo Md Water Quality Report 2026 | View Report |
| Cordova Md Water Quality Report 2026 | View Report |
| Corriganville Md Water Quality Report 2026 | View Report |
| Corriganyville Md Water Quality Report 2026 | View Report |
| Crellin Md Water Quality Report 2026 | View Report |
| Cresaptown Md Water Quality Report 2026 | View Report |
| Crisfield Md Water Quality Report 2026 | View Report |
| Crofton Md Water Quality Report 2026 | View Report |
| Crownsville Md Water Quality Report 2026 | View Report |
| Crownsvll Md Water Quality Report 2026 | View Report |
| Crumton Md Water Quality Report 2026 | View Report |
| Cumberland Md Water Quality Report 2026 | View Report |
| Darlington Md Water Quality Report 2026 | View Report |
| Deep Creek Md Water Quality Report 2026 | View Report |
| Delmar Md Water Quality Report 2026 | View Report |
| Dunkirk Md Water Quality Report 2026 | View Report |
| Durham Md Water Quality Report 2026 | View Report |
| Earlesville Md Water Quality Report 2026 | View Report |
| Earleville Md Water Quality Report 2026 | View Report |
| Earlville Md Water Quality Report 2026 | View Report |
| East Greenville Md Water Quality Report 2026 | View Report |
| East New Market Md Water Quality Report 2026 | View Report |
| Easton Md Water Quality Report 2026 | View Report |
| Eckhart Md Water Quality Report 2026 | View Report |
| Eden Md Water Quality Report 2026 | View Report |
| Edgewater Md Water Quality Report 2026 | View Report |
| Eilicot City Md Water Quality Report 2026 | View Report |
| Elicott City Md Water Quality Report 2026 | View Report |
| Elkton Md Md Water Quality Report 2026 | View Report |
| Elkton Md Water Quality Report 2026 | View Report |
| Ellicott City Md Water Quality Report 2026 | View Report |
| Emmitsburg Md Water Quality Report 2026 | View Report |
| Ewell Md Water Quality Report 2026 | View Report |
| Farmington Hills Md Water Quality Report 2026 | View Report |
| Federalsburg Md Water Quality Report 2026 | View Report |
| Finkburg Md Water Quality Report 2026 | View Report |
| Finksburg Md Water Quality Report 2026 | View Report |
| Fintsburg Md Water Quality Report 2026 | View Report |
| Forest Hill Md Water Quality Report 2026 | View Report |
| Fort Meade Md Water Quality Report 2026 | View Report |
| Frederick Md Water Quality Report 2026 | View Report |
| Fredrick Md Water Quality Report 2026 | View Report |
| Freeland Md Water Quality Report 2026 | View Report |
| Friendsville Md Water Quality Report 2026 | View Report |
| Frostburg Md Water Quality Report 2026 | View Report |
| Fruitland Md Water Quality Report 2026 | View Report |
| Ft Lauderdale Md Water Quality Report 2026 | View Report |
| Fullerton Md Water Quality Report 2026 | View Report |
| Funkstown Md Water Quality Report 2026 | View Report |
| Galena Md Water Quality Report 2026 | View Report |
| Gambrills Md Water Quality Report 2026 | View Report |
| Garrison Md Water Quality Report 2026 | View Report |
| Germantown Md Water Quality Report 2026 | View Report |
| Gilmore Md Water Quality Report 2026 | View Report |
| Glen Arm Md Water Quality Report 2026 | View Report |
| Glen Bornie Md Water Quality Report 2026 | View Report |
| Glen Burnie Md Water Quality Report 2026 | View Report |
| Gleniburnie Md Water Quality Report 2026 | View Report |
| Glenn Burnie Md Water Quality Report 2026 | View Report |
| Grantsville Md Water Quality Report 2026 | View Report |
| Grasonville Md Water Quality Report 2026 | View Report |
| Great Mills Md Water Quality Report 2026 | View Report |
| Greencastle Md Water Quality Report 2026 | View Report |
| Greensboro Md Water Quality Report 2026 | View Report |
| Hagerstown Md Water Quality Report 2026 | View Report |
| Hampstead Md Water Quality Report 2026 | View Report |
| Hancock Md Water Quality Report 2026 | View Report |
| Hanover Md Water Quality Report 2026 | View Report |
| Harwood Md Water Quality Report 2026 | View Report |
| Havre De Grace Md Water Quality Report 2026 | View Report |
| Hebron Md Water Quality Report 2026 | View Report |
| Henryton Md Water Quality Report 2026 | View Report |
| Herndon Md Water Quality Report 2026 | View Report |
| Hollywood Md Water Quality Report 2026 | View Report |
| Hughesville Md Water Quality Report 2026 | View Report |
| Huntingtown Md Water Quality Report 2026 | View Report |
| Hurlock Md Water Quality Report 2026 | View Report |
| Hyattsville Md Water Quality Report 2026 | View Report |
| Ilchester Md Water Quality Report 2026 | View Report |
| Indian Head Md Water Quality Report 2026 | View Report |
| Jefferson Md Water Quality Report 2026 | View Report |
| Jessup Md Water Quality Report 2026 | View Report |
| Jessups Md Water Quality Report 2026 | View Report |
| Keedysville Md Water Quality Report 2026 | View Report |
| Kelton Md Water Quality Report 2026 | View Report |
| Kennedyville Md Water Quality Report 2026 | View Report |
| Kingston Md Water Quality Report 2026 | View Report |
| Kingsville Md Water Quality Report 2026 | View Report |
| Knoxville Md Water Quality Report 2026 | View Report |
| La Plata Md Water Quality Report 2026 | View Report |
| Lancaster Md Water Quality Report 2026 | View Report |
| Landover Md Water Quality Report 2026 | View Report |
| Lapeer Md Water Quality Report 2026 | View Report |
| Laplata Md Water Quality Report 2026 | View Report |
| Laurel Md Water Quality Report 2026 | View Report |
| Lavale Md Water Quality Report 2026 | View Report |
| Lavrel Md Water Quality Report 2026 | View Report |
| Lenoard Town Md Water Quality Report 2026 | View Report |
| Leonardtown Md Water Quality Report 2026 | View Report |
| Lexington Park Md Water Quality Report 2026 | View Report |
| Lexington Pk Md Water Quality Report 2026 | View Report |
| Linkwood Md Water Quality Report 2026 | View Report |
| Linthicum Heights Md Water Quality Report 2026 | View Report |
| Linthicum Hghts Md Water Quality Report 2026 | View Report |
| Linthicum Md Water Quality Report 2026 | View Report |
| Linthieon Md Water Quality Report 2026 | View Report |
| Lonaconing Md Water Quality Report 2026 | View Report |
| Lothian Md Water Quality Report 2026 | View Report |
| Luke Md Water Quality Report 2026 | View Report |
| Lusby Md Water Quality Report 2026 | View Report |
| Lxington Park Md Water Quality Report 2026 | View Report |
| Manchester Md Water Quality Report 2026 | View Report |
| Marbury Md Water Quality Report 2026 | View Report |
| Mardela Springs Md Water Quality Report 2026 | View Report |
| Mardella Md Water Quality Report 2026 | View Report |
| Marlboro Meadows Md Water Quality Report 2026 | View Report |
| Marriotsville Md Water Quality Report 2026 | View Report |
| Marydel Md Md Water Quality Report 2026 | View Report |
| Marydel Md Water Quality Report 2026 | View Report |
| Mcdonough Md Water Quality Report 2026 | View Report |
| Mchenery Md Water Quality Report 2026 | View Report |
| Mchenry Md Water Quality Report 2026 | View Report |
| Middleton Md Water Quality Report 2026 | View Report |
| Middletown Md Water Quality Report 2026 | View Report |
| Midlothian Md Water Quality Report 2026 | View Report |
| Millersville Maryland Md Water Quality Report 2026 | View Report |
| Millersville Md Water Quality Report 2026 | View Report |
| Millington Md Water Quality Report 2026 | View Report |
| Mount Airy Md Water Quality Report 2026 | View Report |
| Mountain Lake Park Md Water Quality Report 2026 | View Report |
| Mt Airy Md Water Quality Report 2026 | View Report |
| Mt Lake Park Md Water Quality Report 2026 | View Report |
| Mt Savage Md Water Quality Report 2026 | View Report |
| Mt Savage Md Water Quality Report 2027 | View Report |
| Mt Savage Md Water Quality Report 2028 | View Report |
| Myersville Md Water Quality Report 2026 | View Report |
| Nanjemoy Md Water Quality Report 2026 | View Report |
| New Berg Md Water Quality Report 2026 | View Report |
| New Castle Md Water Quality Report 2026 | View Report |
| New Windsor Md Water Quality Report 2026 | View Report |
| Newark Md Water Quality Report 2026 | View Report |
| Newburg Md Water Quality Report 2026 | View Report |
| North Beach Md Water Quality Report 2026 | View Report |
| North East Md Water Quality Report 2026 | View Report |
| Oakland Md Water Quality Report 2026 | View Report |
| Ocean City Md Water Quality Report 2026 | View Report |
| Ocean Pines Md Water Quality Report 2026 | View Report |
| Odenton Md Water Quality Report 2026 | View Report |
| Oldtown Md Water Quality Report 2026 | View Report |
| Olney Md Water Quality Report 2026 | View Report |
| Owings Md Water Quality Report 2026 | View Report |
| Owings Mills Md Water Quality Report 2026 | View Report |
| Owlings Md Water Quality Report 2026 | View Report |
| Oxford Md Water Quality Report 2026 | View Report |
| Oxon Hill Md Water Quality Report 2026 | View Report |
| Parsonburg Md Water Quality Report 2026 | View Report |
| Parsonsburg Md Water Quality Report 2026 | View Report |
| Pasadena Md Water Quality Report 2026 | View Report |
| Patuxent River Md Water Quality Report 2026 | View Report |
| Perry Hall Md Water Quality Report 2026 | View Report |
| Perry Point Md Water Quality Report 2026 | View Report |
| Perryman Md Water Quality Report 2026 | View Report |
| Perryville Md Water Quality Report 2026 | View Report |
| Piney Point Md Water Quality Report 2026 | View Report |
| Piney Pt Md Water Quality Report 2026 | View Report |
| Pinto Md Water Quality Report 2026 | View Report |
| Pittsford Md Water Quality Report 2026 | View Report |
| Pittsville Md Water Quality Report 2026 | View Report |
| Pocomoke City Md Water Quality Report 2026 | View Report |
| Pocomoke Md Water Quality Report 2026 | View Report |
| Pomfret Md Water Quality Report 2026 | View Report |
| Poolesville Md Water Quality Report 2026 | View Report |
| Port Deposit Md Water Quality Report 2026 | View Report |
| Port Republic Md Water Quality Report 2026 | View Report |
| Potomac Md Water Quality Report 2026 | View Report |
| Potomac Park Md Water Quality Report 2026 | View Report |
| Preston Md Water Quality Report 2026 | View Report |
| Prince Frederick Md Water Quality Report 2026 | View Report |
| Prince Fredrick Md Water Quality Report 2026 | View Report |
| Princess Anne Md Water Quality Report 2026 | View Report |
| Private Md Water Quality Report 2026 | View Report |
| Prnc Fredrick Md Water Quality Report 2026 | View Report |
| Quantico Md Water Quality Report 2026 | View Report |
| Queen Anne Md Water Quality Report 2026 | View Report |
| Queenstown Md Water Quality Report 2026 | View Report |
| Randallstown Md Water Quality Report 2026 | View Report |
| Randalstown Md Water Quality Report 2026 | View Report |
| Rawlings Allegany Md Water Quality Report 2026 | View Report |
| Rawlings Md Water Quality Report 2026 | View Report |
| Reading Md Water Quality Report 2026 | View Report |
| Reisterstown Md Water Quality Report 2026 | View Report |
| Reistertown Md Water Quality Report 2026 | View Report |
| Reliance Md Water Quality Report 2026 | View Report |
| Rhodes Point Md Water Quality Report 2026 | View Report |
| Ridgely Md Water Quality Report 2026 | View Report |
| Ripley Md Water Quality Report 2026 | View Report |
| Rising Sun Md Water Quality Report 2026 | View Report |
| Risingsun Md Water Quality Report 2026 | View Report |
| Riva Md Water Quality Report 2026 | View Report |
| Rochester Md Water Quality Report 2026 | View Report |
| Rock Hall Md Water Quality Report 2026 | View Report |
| Rockville Md Water Quality Report 2026 | View Report |
| Rumbley Md Water Quality Report 2026 | View Report |
| Sacramento Md Water Quality Report 2026 | View Report |
| Salisbury Md Water Quality Report 2026 | View Report |
| Sandy Spring Md Water Quality Report 2026 | View Report |
| Scotland Md Water Quality Report 2026 | View Report |
| Scraggsville Md Water Quality Report 2026 | View Report |
| Seaford Md Water Quality Report 2026 | View Report |
| Secretary Md Water Quality Report 2026 | View Report |
| Seven Md Water Quality Report 2026 | View Report |
| Severn Md Md Water Quality Report 2026 | View Report |
| Severn Md Water Quality Report 2026 | View Report |
| Severn Way Md Water Quality Report 2026 | View Report |
| Severna Park Md Water Quality Report 2026 | View Report |
| Severna Pk Md Water Quality Report 2026 | View Report |
| Shalimar Md Water Quality Report 2026 | View Report |
| Shalmar Md Water Quality Report 2026 | View Report |
| Sharpsburg Md Water Quality Report 2026 | View Report |
| Sharptown Md Water Quality Report 2026 | View Report |
| Sherwood Forest Md Water Quality Report 2026 | View Report |
| Showell Md Water Quality Report 2026 | View Report |
| Silver Sprg Md Water Quality Report 2026 | View Report |
| Silver Spring Md Water Quality Report 2026 | View Report |
| Smithsburg Md Water Quality Report 2026 | View Report |
| Snow Hill Md Water Quality Report 2026 | View Report |
| Solomons Md Water Quality Report 2026 | View Report |
| Southington Md Water Quality Report 2026 | View Report |
| Sparrows Point Md Water Quality Report 2026 | View Report |
| Springfield Md Water Quality Report 2026 | View Report |
| St Charles Md Water Quality Report 2026 | View Report |
| St Leonard Md Water Quality Report 2026 | View Report |
| St Leonards Md Water Quality Report 2026 | View Report |
| St Marys City Md Water Quality Report 2026 | View Report |
| St Michael Md Md Water Quality Report 2026 | View Report |
| St Michaels Md Water Quality Report 2026 | View Report |
| Stevenson Md Water Quality Report 2026 | View Report |
| Stevensville Md Water Quality Report 2026 | View Report |
| Street Md Water Quality Report 2026 | View Report |
| Stuart Md Water Quality Report 2026 | View Report |
| Sudlersville Md Water Quality Report 2026 | View Report |
| Suitland Md Water Quality Report 2026 | View Report |
| Sunderland Md Water Quality Report 2026 | View Report |
| Swanton Md Water Quality Report 2026 | View Report |
| Sykesville Md Md Water Quality Report 2026 | View Report |
| Sykesville Md Water Quality Report 2026 | View Report |
| Taneytown Md Water Quality Report 2026 | View Report |
| Texas Md Water Quality Report 2026 | View Report |
| Thurmont Md Water Quality Report 2026 | View Report |
| Timonium Md Water Quality Report 2026 | View Report |
| Towson Md Water Quality Report 2026 | View Report |
| Trappe Md Water Quality Report 2026 | View Report |
| Tylerton Md Water Quality Report 2026 | View Report |
| Tysons Md Water Quality Report 2026 | View Report |
| Union Bridge Md Water Quality Report 2026 | View Report |
| Upper Marl Md Water Quality Report 2026 | View Report |
| Upper Marlboro Md Water Quality Report 2026 | View Report |
| Valley Lee Md Water Quality Report 2026 | View Report |
| Vienna Md Water Quality Report 2026 | View Report |
| Virginia Beach Md Water Quality Report 2026 | View Report |
| Waldorf Md Water Quality Report 2026 | View Report |
| Walkersville Md Water Quality Report 2026 | View Report |
| Washington Dc Md Water Quality Report 2026 | View Report |
| Washington Md Water Quality Report 2026 | View Report |
| Waterview Nanticoke Md Water Quality Report 2026 | View Report |
| Westernport Md Water Quality Report 2026 | View Report |
| Westminster Md Water Quality Report 2026 | View Report |
| Westover Md Water Quality Report 2026 | View Report |
| White Marsh Md Water Quality Report 2026 | View Report |
| White Plains Md Water Quality Report 2026 | View Report |
| Wildewood Md Water Quality Report 2026 | View Report |
| Willards Md Water Quality Report 2026 | View Report |
| Williamsburg Md Water Quality Report 2026 | View Report |
| Williamsport Md Water Quality Report 2026 | View Report |
| Willow Street Md Water Quality Report 2026 | View Report |
| Woodbine Md Water Quality Report 2026 | View Report |
| Woodbridge Md Water Quality Report 2026 | View Report |
| Woodline Md Water Quality Report 2026 | View Report |
| Woodsboro Md Water Quality Report 2026 | View Report |
| Woodstock Md Water Quality Report 2026 | View Report |
| Worton Md Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting Nitrates in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. Reverse osmosis is the most effective method for removing nitrates from drinking water.
Our recommendation: View Nitrates filters certified for Maryland water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter Nitrates From Your Maryland Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce Nitrates and other contaminants found in Maryland water.
Shop Nitrates Filters Take the Water QuizFrequently Asked Questions
What is Nitrates?
High nitrate levels cause methemoglobinemia (blue baby syndrome) in infants. EPA MCL is 10 mg/L.
Is Maryland tap water safe to drink?
Water quality varies by city. Of the Maryland systems we analyzed, 354 detected Nitrates. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes Nitrates from tap water?
Reverse osmosis is the most effective method for removing nitrates from drinking water. See our Nitrates filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.