Compliance record
Other contaminants detected
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 139.5 µg/L 11% of the EPA limit 1300 µg/L
worst single sample: 153 µg/L | 27/62 | SYR4 | 2012–2017 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 9/9 | LCR | 2023 |
| Bromodichloromethane | 2.77 µg/L No EPA limit set
worst single sample: 2.8 µg/L | 7/7 | SYR4 | 2013–2019 |
| Chloroform | 2.27 µg/L No EPA limit set
worst single sample: 2.3 µg/L | 7/7 | SYR4 | 2013–2019 |
| Dibromochloromethane | 3.47 µg/L No EPA limit set
worst single sample: 3.5 µg/L | 7/7 | SYR4 | 2013–2019 |
| TTHM | 9.27 µg/L 12% of the EPA limit 80 µg/L
worst single sample: 9.3 µg/L | 7/7 | SYR4 | 2013–2019 |
| Bromoform | 1.275 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 6/7 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 3.85 µg/L 6.4% of the EPA limit 60 µg/L
worst single sample: 4 µg/L | 6/7 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 1.56 µg/L No EPA limit set
worst single sample: 1.6 µg/L | 5/7 | SYR4 | 2013–2019 |
| Nitrate | 390 µg/L 3.9% of the EPA limit 10000 µg/L | 4/32 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 2.195 µg/L No EPA limit set
worst single sample: 2.3 µg/L | 4/7 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 1.29 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 3/7 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 390 µg/L 3.9% of the EPA limit 10000 µg/L | 2/16 | SYR4 | 2012–2019 |
| Lead | 8.29 µg/L 55% of the EPA limit 15 µg/L | 1/62 | SYR4 | 2012–2017 |
68 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Honomu
Is Honomu tap water safe to drink?
EPA monitoring detected 14 contaminants in Honomu's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Honomu's water?
EPA monitoring detected Copper, Lead, Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Honomu serve?
Honomu reports serving 645 people in Hawaii, per its EPA record.
Has Honomu had any water quality violations?
The EPA has no formal drinking-water violations on file for Honomu.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.