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Alderwood Water District

Published drinking-water records and contacts for Alderwood Water District. System WA5301300. Review sources and dates; not a real-time water assessment.

System ID
WA5301300
State or territory
WA
Published population served
245715
System type (source code)
CWS

Published records and dates

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Read the provider’s annual water quality report

Report link listed: 2026-10-15. This is not the report’s sampling date.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
SubstancePublished resultReporting limitSample dateSampling location
11Cl-PF3OUdS< 0.005 µg/L0.005 µg/L2023-11-15Everett Intertie / EP001
4:2 FTS< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
6:2 FTS< 0.005 µg/L0.005 µg/L2023-11-15Everett Intertie / EP001
8:2 FTS< 0.005 µg/L0.005 µg/L2023-11-15Everett Intertie / EP001
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2023-11-15Everett Intertie / EP001
ADONA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
HFPO-DA< 0.005 µg/L0.005 µg/L2023-11-15Everett Intertie / EP001
NEtFOSAA< 0.005 µg/L0.005 µg/L2023-11-15Everett Intertie / EP001
NFDHA< 0.02 µg/L0.02 µg/L2023-11-15Everett Intertie / EP001
NMeFOSAA< 0.006 µg/L0.006 µg/L2023-11-15Everett Intertie / EP001
PFBA< 0.005 µg/L0.005 µg/L2023-11-15Everett Intertie / EP001
PFBS< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFDA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFDoA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFEESA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFHpA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFHpS< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFHxA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFHxS< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFMBA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFMPA< 0.004 µg/L0.004 µg/L2023-11-15Everett Intertie / EP001
PFNA< 0.004 µg/L0.004 µg/L2023-11-15Everett Intertie / EP001
PFOA< 0.004 µg/L0.004 µg/L2023-11-15Everett Intertie / EP001
PFOS< 0.004 µg/L0.004 µg/L2023-11-15Everett Intertie / EP001
PFPeA< 0.003 µg/L0.003 µg/L2023-11-15Everett Intertie / EP001
PFPeS< 0.004 µg/L0.004 µg/L2023-11-15Everett Intertie / EP001
PFTA< 0.008 µg/L0.008 µg/L2023-11-15Everett Intertie / EP001
PFTrDA< 0.007 µg/L0.007 µg/L2023-11-15Everett Intertie / EP001
PFUnA< 0.002 µg/L0.002 µg/L2023-11-15Everett Intertie / EP001
lithium< 9 µg/L9 µg/L2023-08-16Everett Intertie / EP001

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
SubstancePublished 90th percentileMonitoring periodSource quarter
Lead (PB90) 0.028 mg/L1992-01-01 – 1992-06-302026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
PFMBABelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
HFPO-DABelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
PFDABelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
PFPeSBelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
PFDoABelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
PFHxSBelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
9Cl-PF3ONSBelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
PFHpSBelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
PFHxABelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
ADONABelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
PFMPABelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results
11Cl-PF3OUdSBelow a limit; numeric threshold unavailable ng/L2023-11-1501 / Washington DOH PFAS test results

State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.

Download state records with source notes (CSV)

Published compliance history

5 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / recordPeriodRecorded statusHealth-based (EPA classification)Source quarter
Total Coliform Rule / Monitoring, Routine Minor (TCR)1992-12-01 – 1992-12-31ArchivedNo2026Q3
Total Coliform Rule / Monitoring, Repeat Minor (TCR)1992-11-01 – 1992-11-30ArchivedNo2026Q3
Total Coliform Rule / Monitoring, Repeat Minor (TCR)1992-10-01 – 1992-10-31ArchivedNo2026Q3
Total Coliform Rule / Monitoring, Repeat Minor (TCR)1992-08-01 – 1992-08-31ArchivedNo2026Q3
Total Coliform Rule / Monitoring, Repeat Minor (TCR)1991-12-01 – 1991-12-31ArchivedNo2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records