Is Keola Hana-Hotel Dho, HI Tap Water Safe to Drink?
Graded A, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓
94.3/100
waterverge.com Keola Hana-Hotel Dho, HI — Water Quality Report
Keola Hana-Hotel Dho's drinking water received a grade of A (94.3 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 816 residents using groundwater.
Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 8 violations on record, including 1 health-based violation. 1 remains unresolved.
What to know about Keola Hana-Hotel Dho's water
Keola Hana-Hotel Dho ranks #22 out of 66 cities in Hawaii for water quality, placing it mid-range in the state.
Keola Hana-Hotel Dho relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Keola Hana-Hotel Dho may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Keola Hana-Hotel Dho, HI water safe to drink?
Keola Hana-Hotel Dho's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (94.3/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 816 residents using groundwater (wells).
Recent water quality updates for Keola Hana-Hotel Dho
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Keola Hana-Hotel Dho's water quality assessment. Grade: A (94.3/100).
Federal disaster declaration (FEMA DR-4604). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3529). Hurricane event — may have impacted local water infrastructure.
Contaminants: Gross Alpha, Excl. Radon and U.
1 health-based. Contaminants: Coliform (TCR).
Contaminants: Coliform (Pre-TCR).
Key contaminant findings
Based on the most recent EPA sampling data for Keola Hana-Hotel Dho's water supply.
Well within EPA limits.
Violation history
Keola Hana-Hotel Dho's water system has 8 total violations on record, including 1 health-based violation. 1 remain unresolved.
Flood & environmental risk
Maui County has experienced 9 federally declared disasters since 1968. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Oheo Gulch At Dam Near Kipahulu, Maui, Hanawi Stream Near Nahiku, Maui.
Where does Keola Hana-Hotel Dho's water come from?
Keola Hana-Hotel Dho's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 816 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Oheo Gulch At Dam Near Kipahulu, Maui (river), Hanawi Stream Near Nahiku, Maui (river).
What Keola Hana-Hotel Dho residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Keola Hana-Hotel Dho's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Maui County has experienced 9 federally declared disasters since 1968. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Keola Hana-Hotel Dho compares by contaminant
Explore where Keola Hana-Hotel Dho ranks among all Hawaii cities for specific contaminants.
Water source & infrastructure
Where Keola Hana-Hotel Dho's water comes from
Keola Hana-Hotel Dho's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by private ownership and serves approximately 816 people through 1 water system.
Water bodies near Keola Hana-Hotel Dho
Keola Hana-Hotel Dho is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Keola Hana-Hotel Dho
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HANA WATER SYSTEMS - SOUTH | HI0000201 | 816 | GW |
How Keola Hana-Hotel Dho compares
Full Hawaii rankings →Keola Hana-Hotel Dho's score of 94.3/100 is on par with the average of 92/100 among major Hawaii cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Hawaii rankings →About Keola Hana-Hotel Dho, HI
Learn more about your water
Guides and resources related to Keola Hana-Hotel Dho's water quality findings.
Explore water quality across Maui
Frequently asked questions
Is Keola Hana-Hotel Dho, HI tap water safe to drink?
Keola Hana-Hotel Dho's water quality earned a grade of A (94.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #22 out of 66 cities tested in Hawaii.
What contaminants are in Keola Hana-Hotel Dho's water?
Lead was measured at 0.0 ppb (90th percentile). 8 violations are on record.
How is Keola Hana-Hotel Dho's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Keola Hana-Hotel Dho?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Keola Hana-Hotel Dho's water come from?
Keola Hana-Hotel Dho's water is sourced from Groundwater. The city has 1 water system serving approximately 816 residents.
What health violations has Keola Hana-Hotel Dho's water system had?
Keola Hana-Hotel Dho has 1 health-based violation on record. The most recent violation was recorded in January 2000. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.
Is Keola Hana-Hotel Dho's groundwater at risk of contamination?
Keola Hana-Hotel Dho uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 8 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Keola Hana-Hotel Dho's water compare to other cities?
Keola Hana-Hotel Dho ranks #22 out of 66 cities in Hawaii (better than 67% of state cities) and #550 out of 15744 cities nationally (97th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Keola Hana-Hotel Dho's small water system affect quality?
Keola Hana-Hotel Dho's system serves approximately 816 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 8 violations on record.