- EPA's UCMR 5 testing looked for 30 contaminants here and found none.
Public EPA test results
What EPA records show for Northshore Utility District
EPA WA5340800 · serves King County, WA · about 99,789 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Northshore Utility District (EPA WA5340800)
What EPA records show for Northshore Utility District, as of October 14, 2026
We found no health-based violations in EPA's records for this system (WA5340800) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Northshore Utility District (SDWIS). Data as of October 14, 2026.
This system buys water from Alderwood Water District (WA5301300), Bothell Water City of (WA5307900), Lake Forest Park Water District (WA5340950) and 3 more; see those systems' records.
Source: Alderwood Water District (WA5301300) report, Bothell Water City of (WA5307900) report, Lake Forest Park Water District (WA5340950) report, Woodinville Water District (WA5341600) report, Kirkland City of (WA5342250) report, Seattle Public Utilities (WA5377050) report. Data as of October 14, 2026.
EPA's UCMR 5 testing looked for 30 contaminants here and found none.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Northshore Utility District use chloramine?
We didn't find chloramine in Northshore Utility District's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.