Wahiawa

Published drinking-water records and contacts for Wahiawa. System HI0000333. Review sources and dates; not a real-time water assessment.

System ID: HI0000333
State or territory: HI
Published population served: 23348
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 120 — 2023-03-09 – 2023-09-20
Lead and copper monitoring summaries: 9 — 1992-07-01 – 2018-12-31

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

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
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
ADONA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
NFDHA	< 0.02 µg/L	0.02 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFBA	< 0.005 µg/L	0.005 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFBS	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFDA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFDoA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFEESA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFHpA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFHpS	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFHxA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFHxS	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFMBA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFMPA	< 0.004 µg/L	0.004 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFNA	< 0.004 µg/L	0.004 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFOA	< 0.004 µg/L	0.004 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFOS	< 0.004 µg/L	0.004 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFPeA	< 0.003 µg/L	0.003 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFPeS	< 0.004 µg/L	0.004 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
PFTA	< 0.008 µg/L	0.008 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFTrDA	< 0.007 µg/L	0.007 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI
PFUnA	< 0.002 µg/L	0.002 µg/L	2023-09-20	Wahiawa Wells 2 / 333WAHIAWAWELLSII
lithium	< 9 µg/L	9 µg/L	2023-09-20	Wahiawa Wells 1 / 333WAHIAWAWELLSI

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
Substance	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0 mg/L	2016-01-01 – 2018-12-31	2026Q3
Lead (PB90)	0.0013 mg/L	2013-01-01 – 2015-12-31	2026Q3
Lead (PB90)	0.0012 mg/L	2010-01-01 – 2012-12-31	2026Q3
Lead (PB90)	0.0026 mg/L	2007-01-01 – 2009-12-31	2026Q3
Lead (PB90)	0.0016 mg/L	2004-01-01 – 2006-12-31	2026Q3
Lead (PB90)	0 mg/L	2001-01-01 – 2003-12-31	2026Q3
Lead (PB90)	0 mg/L	2001-01-01 – 2003-12-31	2026Q3
Lead (PB90)	0 mg/L	1998-01-01 – 2000-12-31	2026Q3

Published compliance history

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

Source dates and refresh checks

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

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17

Administrative contact (EPA filing)

Kawata, Erwin: 808-748-5080

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