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Granda Del Mar

PWS ID: VI0000342 · US Virgin Islands

Granda Del Mar serves 40 people in US Virgin Islands using Groundwater water sources. It has 8 recorded EPA violations, including 1 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: Granda Del Mar

Granda Del Mar is a private-owned community water system that delivers drinking water to 40 residents in US Virgin Islands (St. Croix Island County) through 36 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 8 total violations for this system , of which 1 (13%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 2 violations (Other). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across US Virgin Islands, EPA tracks 256 public water systems serving 122,604 people, with 1,317 cumulative violations and 236 health-based violations on record. About 84% of systems in the state carry at least one violation, and state-wide the average per system is 5.1 violations. Granda Del Mar's 8 violations sit above the US Virgin Islands average. Statewide, 1 of 3 UCMR5-tested systems have reported PFAS detections (33.3%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
40
Total Violations
8
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
36
County
St. Croix Island
School/Daycare
No
MCL Violations
0
Monitoring Violations
0
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 2 1999
LEAD AND COPPER RULE REVISIONS RPT 1 2024
LEAD AND COPPER RULE REVISIONS TT 1 2024

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Granda Del Mar.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID VI0000342 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

US Virgin Islands Drinking Water Authority

US Virgin Islands's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find VI regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / VI0000342 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / VI0000342 / 5200
1999 Consumer Confidence Rule Other 2 SDWIS / VI0000342 / 7000

How Granda Del Mar Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Granda Del Mar US Virgin Islands avg Federal benchmark
Total violations 8 5.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 1 0.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 40 479 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 256 regulated public water systems in US Virgin Islands.

Federal MCL reference — Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Granda Del Mar water safe to drink?
Granda Del Mar (PWS ID: VI0000342) has 8 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 40 people using Groundwater sources.
How many people does Granda Del Mar serve?
Granda Del Mar serves 40 people in US Virgin Islands. It is a Private-owned system using Groundwater water sources with 36 service connections.
What type of violations does Granda Del Mar have?
Granda Del Mar has 8 total violations: 1 health-based violations (MCL exceedances or treatment failures), 0 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Granda Del Mar water?
No PFAS testing data is available for Granda Del Mar under the EPA's UCMR5 monitoring program.
What water source does Granda Del Mar use?
Granda Del Mar uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial