Is Gladstone, OR tap water safe?
The short answer
2 of the 3 utilities serving Gladstone have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: City of Gladstone and Oak Lodge Water Services.
City of Gladstone, which serves the most people here, has 2 results above the legal limit and 1 result above the health goal. The worst: Haloacetic acids (HAA5) at 36.5 ppb, above the legal limit.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Gladstone’s ZIP codes, from EPA’s estimates.
- Open report
City of Gladstone
Oregon · serves 12,121 people · about 10,900 in Gladstone
2 results above the legal limit and 1 result above the health goal. The worst: Haloacetic acids (HAA5) at 36.5 ppb, above the legal limit.
8 health-based violations since 2016
- Open report
Clackamas River Water
Oregon · serves 29,918 people · about 640 in Gladstone
1 result above the health goal. The worst: Lead at 1.7 ppb, above the health goal.
No health-based violations since 2016
- Open report
Oak Lodge Water Services
Oregon · serves 30,000 people · about 370 in Gladstone
1 result above the health goal. The worst: Lead at 2.7 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Gladstone’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana Clean Water Machine (AQ-CWM2)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead
Brita Hub Countertop Water Filter System (87340)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead
Ninja HydraSense Countertop Water Filtration System (WF1001)
Countertop
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead
Water testing near Gladstone
The 3 labs Oregon certifies closest to Gladstone, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Clackamas River Water Drinking Water Quality Laboratory
Clackamas, OR · about 3 miles
Certified for bacteria
Clackamas Water Environment Services-Water Quality Laboratory
Oregon City, OR · about 5 miles
Certified for bacteria
Rose City Laboratories
Portland, OR · about 7 miles
Certified for bacteria, nitrate, lead and copper, metals, PFAS
Oregon State University Extension Well Water Program: Nitrate screening of well water at many of its groundwater education events. The screening is free. Water Testing Guidance for Private Wells, OSU Well Water Program.
All 91 certified labs for OregonZIP codes in Gladstone
Which ZIP codes are in Gladstone: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Oregon Environmental Laboratory Accreditation Program, drinking water labs, as listed in TNI LAMS; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Gladstone
Other towns in Clackamas County with a page of their own.
What to do next
- Read City of Gladstone’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Haloacetic acids (HAA5)What it does to health, where it comes from, and the certification claim that addresses it.About Haloacetic acids (HAA5)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water