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Ontario, Oregon | Municipal Water Utility Company | Public Service Announcement
The municipal water supply in Ontario may contain various contaminants including Antimony, Dichloromethane (methylene chloride) and Copper, while also exhibiting significant mineral hardness levels. City of Ontario provides residents with water sourced primarily from Surface water reservoirs.
What's in your tap water?
Limited Time: Free Official Water Safety Report for City of Ontario!
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City of Ontario Area Details
Area served:
Ontario, Oregon
Population served:
15018
Water source:
Surface water
Phone:
541-889-7684
Address:
444 Sw 4th Street, Ontario, OR 97914
3date
Contaminants Detected In Ontario, Oregon
Chromium (hexavalent); Total trihalomethanes (TTHMs); Chromium (hexavalent); Arsenic; Barium; Fluoride; Nitrate and nitrite; Selenium; Di(2-ethylhexyl… more
Limited Time: Free Official Water Safety Report for City of Ontario!
DISCOVER THE TRUTH & SAFEGUARD YOUR FAMILY!
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City of Ontario
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by City of Ontario
Tested But Not Detected:
1,1,1-Trichloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 1,1-Dichloroethylene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3-Butadiene; 1,4-Dioxane; 2,4,5-TP (Silvex); 2,4-D; Alachlor (Lasso); Antimony; Asbestos; Atrazine; Benzene; Benzo[a]pyrene; Beryllium; Bromochloromethane; Bromomethane; Cadmium; Carbofuran; Carbon tetrachloride; Chlordane; Chlorodifluoromethane; Chloromethane; cis-1,2-Dichloroethylene; Cobalt; Cyanide; Dalapon; Di(2-ethylhexyl) adipate; Dichloromethane (methylene chloride); Dinoseb; Diquat; Endothall; Endrin; Ethylbenzene; Ethylene dibromide; Glyphosate; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorocyclopentadiene; Lindane; Mercury (inorganic); Methoxychlor; Monochlorobenzene (chlorobenzene); Nitrite; o-Dichlorobenzene; Oxamyl (Vydate); p-Dichlorobenzene; Pentachlorophenol; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Polychlorinated biphenyls (PCBs); Radium; combined (-226 & -228); Simazine; Styrene; Tetrachloroethylene (perchloroethylene); Thallium; Toluene; Toxaphene; trans-1,2-Dichloroethylene; Trichloroethylene; Vinyl chloride; Xylenes (total)
What's in your tap water?
Discover which contaminants exceed Legal and Health Guidelines in your water.
DISCOVER THE TRUTH & SAFEGUARD YOUR FAMILY!
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City of Ontario
About Us
Ontario's municipal water undergoes a comprehensive "treatment train" process including several key steps: coagulation, flocculation, sedimentation, filtration, and disinfection.
In coagulation, special chemicals attract dust and suspended particles forming "floc" clusters. During flocculation, gentle mixing helps small floc particles combine into larger ones. These heavier particles naturally settle in sedimentation basins.
The clarified water then passes through sand, gravel, and charcoal filters that capture even smaller impurities. Finally, controlled chlorination eliminates harmful bacteria and microorganisms before the water enters the community distribution system.
Regarding Cryptosporidium monitoring: This microbial pathogen appears in surface waters throughout the United States. While filtration significantly reduces cryptosporidium presence, no filtration method guarantees 100% removal. Testing confirms these organisms exist in our source water, though current methods cannot determine if they remain viable and disease-causing.
If ingested, cryptosporidium may cause gastrointestinal illness with symptoms including nausea, diarrhea, and abdominal discomfort. Most healthy individuals recover within weeks, but immunocompromised persons face higher risks of serious complications. We strongly encourage immunocompromised residents to consult healthcare providers about additional precautions.
For more information on your municipal water, visit the U.S. Environmental Protection Agency:
City of Ontario Municipal Water Company and EPACity of Ontario Municipal Water Report Info
The Ontario City Council consists of a Mayor and six Councilors elected at-large from the city. Elections are conducted on a non-partisan basis, with each member serving a 4-year term. After elections, the Council selects a President to lead meetings in the Mayor's absence.
Each Council member serves as a liaison to external committees, commissions, or boards, including the Planning Commission and Parks and Recreation Board. These appointments undergo annual review each January following elections.
The City Council convenes on the third Tuesday monthly at 7:00 pm in the Council Chambers at Ontario City Hall. If additional meetings are needed, they occur on the fourth Tuesday. Study sessions are held the Thursday before Council meetings at noon to review agenda items, also in the Council Chamber.
Municipal Water Utility Company FAQ
For more information on your municipal water, visit the U.S. CDC:
City of Ontario Municipal Water Company and CDC- How is Ontario's municipal water treated?
- What contaminants are regularly tested in our water supply?
- How often is water quality testing performed?
- Who should I contact with water quality concerns?
- Are there special precautions for immunocompromised residents?
City of Ontario provides municipal water services to the residents of Ontario and surrounding areas in Oregon.
Get the City of Ontario Official Water Score Report for Free (limited time offer).
DISCOVER THE TRUTH & SAFEGUARD YOUR FAMILY!
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