
Montgomery And Prince George Counties, Maryland | Municipal Water Utility Company | Public Service Announcement
The neighborhood tap water of Washington Suburban Sanitary Commission may be contaminated with various toxins including Dieldrin, Mercury (inorganic), N-Nitrosodimethylamine (NDMA) and Caffeine, and may struggle with elevated levels of water hardness. Washington Suburban Sanitary Commission provides this county with municipal water sourced primarily from Surface water.
What's in your tap water?
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Washington Suburban Sanitary Commission Details

Area served:
Montgomery And Prince George Counties, Maryland

Population served:
1800319

Water source:
Surface water

Phone:
301-206-4001

Address:
14501 Sweitzer Lane, Laurel, MD 20707

3date
Contaminants Detected In Montgomery And Prince George Counties, Maryland
Bromodichloromethane; Chloroform; Chromium (hexavalent); Dibromochloromethane; Total trihalomethanes (TTHMs); Bromodichloromethane; Arsenic; Nitrite; … more

Limited Time - Get the Washington Suburban Sanitary Commission Water Score Report for Free.
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Washington Suburban Sanitary Commission
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by Washington Suburban Sanitary Commission
Tested But Not Detected:
1,1,1,2-Tetrachloroethane; 1,1,1-Trichloroethane; 1,1,2,2-Tetrachloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 1,1-Dichloroethylene; 1,1-Dichloropropene; 1,2,3-Trichlorobenzene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2,4-Trimethylbenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3,5-Trimethylbenzene; 1,3-Butadiene; 1,3-Dichloropropane; 1,3-Dichloropropene; 1,4-Dioxane; 17-beta-Estradiol; 2,2-Dichloropropane; 2,3,7,8-TCDD (Dioxin); 2,4,5-T; 2,4,5-TP (Silvex); 2,4-D; 2,4-DB; 3-Hydroxycarbofuran; 4-Androstene-3,17-dione; Alachlor (Lasso); Aldicarb; Aldicarb sulfone; Aldicarb sulfoxide; Aldrin; Antimony; Atrazine; Benzene; Benzo[a]pyrene; Beryllium; Bromobenzene; Bromochloromethane; Bromomethane; Butachlor; Cadmium; Carbaryl; Carbofuran; Carbon tetrachloride; Chlordane; Chlorodifluoromethane; Chloroethane; Chloromethane; cis-1,2-Dichloroethylene; Cobalt; Dalapon; Dechlorobiphenyl; Di(2-ethylhexyl) adipate; Di(2-ethylhexyl) phthalate; Dibromomethane; Dicamba; Dichlorodifluoromethane; Dichloromethane (methylene chloride); Dieldrin; Dinoseb; Diquat; Endothall; Endrin; Equilin; Estriol; Estrone; Ethinyl estradiol; Ethylbenzene; Ethylene dibromide; Glyphosate; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorobutadiene; Hexachlorocyclopentadiene; Isopropylbenzene; Lindane; m-Dichlorobenzene; m-Xylene; Mercury (inorganic); Methomyl; Methoxychlor; Metolachlor; Metribuzin; Molybdenum; Monochlorobenzene (chlorobenzene); MTBE; n-Butylbenzene; n-Propylbenzene; Naphthalene; o-Chlorotoluene; o-Dichlorobenzene; o-Xylene; Oxamyl (Vydate); p-Chlorotoluene; p-Dichlorobenzene; p-Isopropyltoluene; p-Xylene; Pentachlorophenol; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Polychlorinated biphenyls (PCBs); Propachlor; sec-Butylbenzene; Simazine; Styrene; tert-Butylbenzene; Testosterone; Tetrachloroethylene (perchloroethylene); Toluene; Toxaphene; trans-1,2-Dichloroethylene; Trichloroethylene; Trichlorofluoromethane; Tritium; Vinyl chloride; Xylenes (total)

What's in your tap water?

Find out which contaminants are found above Legal and Health Guidelines.
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Washington Suburban Sanitary Commission
About Us
Municipal water, including bottled options, naturally contains small amounts of certain contaminants. The presence of these substances doesn't necessarily indicate a health risk. However, some individuals are more sensitive to water contaminants than the general population.
Immunocompromised individuals—such as cancer patients undergoing chemotherapy, organ transplant recipients, people with HIV/AIDS, elderly residents, and infants—may face increased infection risks and should consult healthcare providers about their water consumption. The EPA and CDC provide guidelines on reducing Cryptosporidium and microbial contamination risks through their Safe Drinking Water Hotline (1-800-426-4791) and website.
WSSC regularly updates water quality information on wsscwater.com, and residents can contact their testing laboratory at 301-206-7575 with questions. Spanish translations, previous reports, and informational videos are available at wsscwater.com/waterquality.
The public is welcome to attend project and policy-related hearings throughout the year. Commission meetings typically occur on the third Wednesday monthly at noon, with Capital Improvements Program hearings in September and Operating Budget hearings in early February.
To ensure tap water safety, EPA regulations limit contaminant levels in public water systems. WSSC treats water to meet or exceed these standards through a comprehensive process:
- Coagulation and flocculation (binding particles and microorganisms)
- Sedimentation (removing these bound materials)
- Filtration (capturing remaining particles)
- Chlorination (disinfection)
- Lime addition (reducing lead solder dissolution)
- Fluoridation (preventing tooth decay)
- Orthophosphate addition (minimizing lead corrosion and copper pipe pinhole leaks)
WSSC recently completed EPA-mandated Cryptosporidium monitoring (March 2015-February 2017), finding their Potomac and Patuxent sources unaffected. For extra protection, they've installed UV disinfection at the Potomac Plant with Patuxent Plant upgrades scheduled for Fall 2018.
WSSC sources water from the Patuxent and Potomac rivers. Patuxent water is stored in Triadelphia and T. Howard Duckett reservoirs before treatment, while Potomac water is drawn directly from the river. Some areas receive blended water from both plants.
Regarding water hardness, Potomac water tends to be hard (140-150 mg per liter), while Patuxent water is softer (70-80 mg per liter).
Lead exposure can be reduced by flushing taps for 30 seconds to 2 minutes after water has been sitting. WSSC's 2017 testing showed 90% of homes had lead levels below 1.05 ppb, well under the EPA's 15 ppb threshold.

For more information on your drinking water, visit the U.S. Environmental Protection Agency:
Washington Suburban Sanitary Commission Drinking Water Company and EPAWashington Suburban Sanitary Commission Municipal Water Report Info
The Washington Suburban Sanitary Commission (WSSC) was established on May 1, 1918, though the concept of a bi-county water/sewer utility was initially proposed in 1912. This came after complaints from the District of Columbia about stream contamination from Montgomery and Prince George's Counties.
While public health officials and civic activists conceived the idea, it took dedicated efforts from leaders like E. Brooke Lee (Montgomery County politician) and T. Howard Duckett (Prince George's County attorney and entrepreneur, often called WSSC's "founding father") to transform vision into reality.
Among the early contributors was renowned engineer Abel Wolman, widely recognized as modern sanitary engineering's father. His development of chlorination techniques revolutionized waterborne disease prevention, particularly against typhoid and cholera.
WSSC faced immediate pressure to deliver results from day one. On May 15, 1918, the charter Commissioners—William T.S. Curtis, Emory H. Bogley, and Mr. Duckett—held their first meeting, establishing several firsts:
- Mr. Curtis became the first WSSC Chairman
- Arthur Williams of Kensington was appointed Secretary/Treasurer and first paid employee ($50 monthly)
- Robert B. Morse became the first Chief Engineer
- Office space was secured for $18 monthly
In July 1918, WSSC issued its first bonds ($50,000) and authorized Chief Engineer Morse to "buy $190 worth of supplies and a new Ford with removable rims." The Commission immediately began acquiring existing water and sewerage systems within its 95-square-mile service area, which then served 30,000 residents with an assessed property value under $20 million.
In 2016, WSSC achieved another milestone when Carla A. Reid became its first female General Manager and CEO. Learn more about WSSC's century of community service at Beyond the Pipes.
Municipal Water Utility Company FAQ

For more information on your drinking water, visit the U.S. CDC:
Washington Suburban Sanitary Commission Drinking Water Company and CDC.. ...

Washington Suburban Sanitary Commission provides municipal water services to the public of Laurel and Montgomery And Prince George Counties, Maryland.
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