HNL-WINDWARD-PEARL HARBOR
HI · PWS ID HI0000331 · Community water system
114
contaminants tested
23
detected
631,389
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0030 ug/L | 1/90 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 2400 UG/L | 804/848 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 2400 UG/L | 355/374 | SYR4 | 2012–2019 |
| Bromoform | 17 UG/L | 158/293 | SYR4 | 2012–2019 |
| TTHM | 17 UG/L | 158/293 | SYR4 | 2012–2019 |
| Chromium | 6.1 UG/L | 133/140 | SYR4 | 2012–2019 |
| Barium | 20 UG/L | 113/139 | SYR4 | 2012–2019 |
| Fluoride | 84 UG/L | 79/417 | SYR4 | 2012–2019 |
| COPPER, FREE | 180 UG/L | 71/140 | SYR4 | 2012–2019 |
| Chlordane | 0.6000 UG/L | 71/387 | SYR4 | 2012–2019 |
| Heptachlor epoxide | 0.0280 UG/L | 26/489 | SYR4 | 2012–2019 |
| Dibromochloromethane | 1.6 UG/L | 24/292 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0025 mg/L | 13/13 | LCR | 2018 |
| Gross Beta Particle Activity | 5.4 PCI/L | 9/96 | SYR4 | 2012–2019 |
| Lead | 2.5 UG/L | 9/141 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 1.5 UG/L | 8/166 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 5.4 PCI/L | 7/96 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.3 UG/L | 4/166 | SYR4 | 2012–2019 |
| Arsenic | 1.8 UG/L | 3/141 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 3.8 UG/L | 3/461 | SYR4 | 2012–2019 |
| Selenium | 8 UG/L | 2/140 | SYR4 | 2012–2019 |
| Antimony, Total | 1.5 UG/L | 1/139 | SYR4 | 2012–2019 |
| Combined Uranium | 2.086 UG/L | 1/96 | SYR4 | 2012–2019 |
91 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalBromodichloromethaneCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChloroformCombined Radium (-226 and -228)DICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
HONOLULU-WINDWARD-PEARLHARBOR