
Hillsboro, Oregon | Municipal Water Utility Company | Public Service Announcement
Recent testing indicates that Hillsboro's municipal water supply may contain several concerning contaminants including Methyl ethyl ketone, trans-1,2-Dichloroethylene, Xylenes (total) and o-Xylene, alongside elevated water hardness levels. The City of Hillsboro provides residents with water sourced from purchased surface water supplies that require ongoing monitoring and treatment.
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City of Hillsboro Area Details

Service region:
Hillsboro, Oregon

Residents served:
81987

Water source:
Purchased surface water

Phone:
503-681-6100

Address:
150 E. Main Street, Hillsboro, OR 97123-4028

3date
Contaminants Detected In Hillsboro, Oregon
Chromium (hexavalent); Total trihalomethanes (TTHMs); Strontium; Vanadium; Barium; Nitrate; Nitrate and nitrite... more

Limited Time - Get the City of Hillsboro Water Score Report for Free.
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City of Hillsboro
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by City of Hillsboro
Tested But Not Detected:
1,1-Dichloroethane; 1,2,3-Trichloropropane; 1,3-Butadiene; 1,4-Dioxane; Bromochloromethane; Bromomethane; Chlorate; Chlorodifluoromethane; Chloromethane; Cobalt; Molybdenum; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA)

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Discover which contaminants exceed Legal and Health Guidelines in your water.
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City of Hillsboro
About Us
Hillsboro Municipal Water Department delivers surface water sourced from natural water bodies and reservoirs. Since 1940, the upper-Tualatin River has served as the city's primary winter water source. The Tualatin originates in Washington County's Tillamook State Forest and flows 83 miles to join the Willamette River near West Linn in Clackamas County.
During summer months, when river levels drop too low for municipal use, Hillsboro residents rely on stored water from two key reservoirs:
- Barney Reservoir: Located 1,640 feet above sea level in the Trask River Watershed, storing 20,000 acre-feet of water
- Scoggins Reservoir (Hagg Lake): Covers 1,132 acres and holds approximately 59,950 acre-feet when at capacity
An acre-foot represents the volume needed to cover one acre with water one foot deep. For more detailed information about Hillsboro's current water supply infrastructure and management, visit Hillsboro-Oregon.gov/Departments/Water/Your-Drinking-Water.

For more information on your municipal water, visit the U.S. Environmental Protection Agency:
City of Hillsboro Municipal Water Company and EPACity of Hillsboro Municipal Water Report Information
Our professional, customer-focused team stands ready to guide your project from concept to completion. We ensure all developments meet safety, sustainability, and accessibility standards whether you're planning a home addition or designing a commercial complex.
Working alongside leading technology companies, we utilize advanced digital tools and platforms to deliver efficient, responsive service. Our commitment to lean operations and sustainability helps maintain affordable fees while ensuring rapid turnaround times.
We value direct communication and personal interactions with customers to address concerns effectively. Our team takes pride in collaborating with contractors and design professionals to develop innovative, cost-effective solutions. We're adaptable, approachable, and dedicated to respectful partnerships with clients and colleagues. We'd be delighted to discuss becoming part of your project team.
Municipal Water Utility Company FAQ

For more information on your municipal water, visit the U.S. CDC:
City of Hillsboro Municipal Water Company and CDC.. ...

City of Hillsboro provides municipal water services to residents throughout Hillsboro and surrounding Oregon communities.
Free Official Water Safety Report for City of Hillsboro!

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