HILO
PWSID: HI0000101 · Hilo, HI · Serves 39,477 people
According to EPA Safe Drinking Water Information System (SDWIS), HILO (PWSID HI0000101) in Hilo, HI is listed as a CWS water system covering about 39,477 people. The same extract lists 1 health-based violation record spanning 2000-2000. Those 1 health-based row for HILO cover contaminants such as Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
HILO has 1 health-based violation record in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including Surface Water Treatment Rule. Recorded violations span 2000–2000. Day-to-day primacy enforcement for this system runs through the Hawaii drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Hawaii state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- HI0000101
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Hilo, HI
- Population Served
- 39,477
- Health Violations
- Yes (1)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Surface Water Treatment Rule | 1 | 1 |
Violation History (1)
| Contaminant | Health | Date |
|---|---|---|
| Surface Water Treatment Rule | Yes | Jan 1, 2000 |
Frequently Asked Questions
What does EPA SDWIS list for HILO?
How many people does HILO serve?
What violations does HILO have?
What contaminants have been found in HILO water?
Compare beyond Hawaii
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest HILO on cumulative violation count (1) and EPA-reported population served (39,477). Violation-count peers include CHOCTAW - CONEHATTA, CHOCTAW - PEARL RIVER, CHOCTAW - TUCKER. Population peers include DOVER WATER DEPARTMENT, WESTERN WATER COMPANY, BELLA VISTA POA.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
HILO (HI0000101) is drawn from EPA SDWIS. Nearby county systems in this extract include NORTH KONA; WAIKOLOA; SOUTH KOHALA; KAANAPALI. Health-based rows (1 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.