WaterVerge

Is Kawela, HI Tap Water Safe to Drink?

Graded A+ with no contaminants above EPA limits. Here's everything we tested and how Kawela ranks. What to do next ↓

553 residents served 1 water system PWSID: HI0000248
Overall Score
97 / 100
Violations
None active
Last Updated
May 2026
Source
Groundwater
#12 of 66 in Hawaii Top 1% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A+GRADE
Water Quality Grade
97/100
waterverge.com
A+ 97/100

Kawela, HI — Water Quality Report

Kawela's drinking water received a grade of A+ (97 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 553 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 1 violation on record, including 0 health-based violations. All violations have been resolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Kawela's water

Kawela ranks #12 out of 66 cities in Hawaii for water quality, placing it above average in the state.

Kawela 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, Kawela may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
97 out of 100 Grade A+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
45/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Kawela, HI water safe to drink?

Generally Safe

Based on EPA testing data, Kawela's tap water is generally safe to drink. The water system earned a grade of A+ (97/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 553 residents using groundwater (wells).

None
Violations
0.0 ppb
Lead (90th %ile)
9 events
Disaster History

Recent water quality updates for Kawela

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Kawela's water quality assessment. Grade: A+ (97/100).

Disaster
SEVERE STORMS, FLOODING, AND LANDSLIDES

Federal disaster declaration (FEMA DR-4604). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE DOUGLAS

Federal disaster declaration (FEMA DR-3529). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Gross Alpha, Excl. Radon and U.

Key contaminant findings

Based on the most recent EPA sampling data for Kawela's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Kawela's water system has 1 total violation on record, including 0 health-based violations. All violations have been resolved.

MR
Most recent violations:
Jan 2000 Gross Alpha, Excl. Radon and U Resolved

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 Waikolu Str Blw Pipe Nr Kalaupapa, Molokai, Waihanau Stream Nr Kalaupapa, Molokai, Kaunakakai Gulch At Altitude 75 Feet, Molokai, Ef Kawela Gulch Nr Kamalo, Molokai, Kawela Gulch Near Moku, Molokai.

SEVERE STORMS, FLOODING, AND LANDSLIDES
Flood FEMA DR-4604
HURRICANE DOUGLAS
Hurricane FEMA DR-3529
HURRICANE LANE
Hurricane FEMA DR-4395

Where does Kawela's water come from?

Kawela's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 553 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Waikolu Str Blw Pipe Nr Kalaupapa, Molokai (river), Waihanau Stream Nr Kalaupapa, Molokai (river), Kaunakakai Gulch At Altitude 75 Feet, Molokai (river), Ef Kawela Gulch Nr Kamalo, Molokai (river), Kawela Gulch Near Moku, Molokai (river).

What Kawela residents can do

Request your utility's CCR

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.

Monitor alerts during storms

Kawela'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.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

1
Total violations
0
Health-based
0
Active / unresolved
Jan 2000
Most recent violation
Compliance Record

Violations & advisories

1 Total
0 Active
0 Health-based
1 Resolved
Jan 2000 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2003
Environmental Risk

Flood & disaster history

9
Declared disasters
May 2021
Most recent
Hurricane
Most common type

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.

May 2021
SEVERE STORMS, FLOODING, AND LANDSLIDES
Flood FEMA #4604
Jul 2020
HURRICANE DOUGLAS
Hurricane FEMA #3529
Sep 2018
HURRICANE LANE
Hurricane FEMA #4395
Sep 2018
TROPICAL STORM OLIVIA
Hurricane FEMA #3404
Aug 2018
HURRICANE LANE
Hurricane FEMA #3399
Sep 1992
HURRICANE INIKI
Hurricane FEMA #961

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 5.0 ppb from 2009 (5.0 ppb) to 2022 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
553
Water Systems
1
Water Source

Where Kawela's water comes from

Groundwater

Kawela'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 553 people through 1 water system.

Local Hydrology

Water bodies near Kawela

Kawela is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Waikolu Str Blw Pipe Nr Kalaupapa, Molokai
river
Waihanau Stream Nr Kalaupapa, Molokai
river
Kaunakakai Gulch At Altitude 75 Feet, Molokai
river
Ef Kawela Gulch Nr Kamalo, Molokai
river
Kawela Gulch Near Moku, Molokai
river
Infrastructure

Water systems serving Kawela

System Name PWSID Population Source
KAWELA PLANTATION HI0000248 553 GW
Regional Comparison

How Kawela compares

Full Hawaii rankings →

Kawela's score of 97/100 is on par with the average of 92/100 among major Hawaii cities. It outscores 9 of 10 nearby cities.

Kawela (this city)
97
Wailuku
91.4
Hawaii avg
92
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Frequently asked questions

Is Kawela, HI tap water safe to drink?

Kawela's water quality earned a grade of A+ (97/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #12 out of 66 cities tested in Hawaii.

What contaminants are in Kawela's water?

Lead was measured at 0.0 ppb (90th percentile). 1 violation is on record.

How is Kawela'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 Kawela?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Kawela's water come from?

Kawela's water is sourced from Groundwater. The city has 1 water system serving approximately 553 residents.

Is Kawela's groundwater at risk of contamination?

Kawela 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 1 violation 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 Kawela's water compare to other cities?

Kawela ranks #12 out of 66 cities in Hawaii (better than 82% of state cities) and #119 out of 15744 cities nationally (99th percentile). The grade of A+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Kawela's small water system affect quality?

Kawela's system serves approximately 553 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 1 violation on record.