01The verdict: is Charlotte Amalie water safe?
Charlotte Amalie's drinking water has significant quality concerns based on EPA testing data. With a grade of B (77/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,060 residents using groundwater (wells).
6 unresolved violations on record
EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.
See what was cited ↓Lead is well under the limit
90th-percentile lead is 1.0 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.
See the trend ↓4 violations in the last five years
Recent compliance history is the best predictor of future problems — the year-by-year record is below.
See the record ↓Charlotte Amalie's drinking water received a grade of B (77 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,060 residents using groundwater.
Lead levels were measured at 1.0 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 10 violations on record, including 2 health-based violations. 6 remain unresolved.
Charlotte Amalie ranks #1 out of 2 cities in U.S. Virgin Islands for water quality, placing it one of the best in the state. Charlotte Amalie 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, Charlotte Amalie may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
02What's in Charlotte Amalie's water
Every contaminant flagged in Charlotte Amalie, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.
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. | 1.0 | 15 | ppb | Inorganic | Safe |
03Charlotte Amalie's ten-year track record
Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 10 violations on record, including 2 health-based violations. 6 remain unresolved.
9 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.
▼ Down 1.5 ppb since 2006. Latest reading: 1 ppb (2009) — 7% of the action level. Sampled at higher-risk homes (90th percentile).
04Where Charlotte Amalie's water comes from
Charlotte Amalie's drinking water is drawn from underground aquifers through wells.
Groundwater
Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.
Local treatment
Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.
2 systems
2 water systems, operated under private ownership.
1,060 people
Residents served across Charlotte Amalie's service area.
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 1,060 people through 2 water systems.
| System name | PWSID | Population | Source |
|---|---|---|---|
| Bovoni Housing Project I and II | VI0000029 | 960 | Groundwater |
| Burnett Towers | VI0000122 | 100 | Groundwater |
05How Charlotte Amalie compares
Scores for nearby U.S. Virgin Islands cities on one line, with the average marked.
dashed line = U.S. Virgin Islands average (61/100)
Charlotte Amalie scores 77/100 — above the U.S. Virgin Islands average of 61/100. It outscores 1 of 1 nearby cities.
Compare all cities in the county — grades, violations, and contaminant data side by side.→
06What to do at home
Steps matched to what testing actually found in Charlotte Amalie's water — not generic advice.
A basic carbon filter still helps
Charlotte Amalie's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.
Compare tested filters →Read your utility's annual report
Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.
How to read a CCR →Watch for Charlotte Amalie alerts
We refresh EPA data monthly and surface new violations, advisories, and boil-water notices for your county on this page.
All water alerts →Frequently asked questions
Is Charlotte Amalie, VI tap water safe to drink?
Charlotte Amalie's water quality earned a grade of B (77/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #1 out of 2 cities tested in U.S. Virgin Islands.
What contaminants are in Charlotte Amalie's water?
Lead was measured at 1.0 ppb (90th percentile). 10 violations are on record.
How is Charlotte Amalie'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 Charlotte Amalie?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Charlotte Amalie's water come from?
Charlotte Amalie's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,060 residents.
What health violations has Charlotte Amalie's water system had?
Charlotte Amalie has 2 health-based violations on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.
Is Charlotte Amalie's groundwater at risk of contamination?
Charlotte Amalie 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 10 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 Charlotte Amalie's water compare to other cities?
Charlotte Amalie ranks #1 out of 2 cities in U.S. Virgin Islands (better than 50% of state cities) and #9037 out of 15382 cities nationally (41th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.