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State: Virgin Islands
Waterbody ID: VI-STT-13
Location: STT-16B Mandahl Bay Entrance, STT-16C Mandahl Point Entrance
State Waterbody Type: Ocean
EPA Waterbody Type: Ocean and Near Coastal
Water Size: .0131
Units: square miles
Watershed Name:
On This Page
- Water Quality Assessment Status
- Causes of Impairment
- Probable Sources Contributing to Impairments
- TMDLs That Apply to This Waterbody
- Previous Causes of Impairment Now Attaining All Uses
State: Virgin Islands
Waterbody ID: VI-STT-13
Location: STT-16B Mandahl Bay Entrance, STT-16C Mandahl Point Entrance
State Waterbody Type: Ocean
EPA Waterbody Type: Ocean and Near Coastal
Water Size: .0131
Units: square miles
Watershed Name:
Data are also available for these years: 2008 2006 2004 2002
2010 Waterbody Report for Mandahl Bay (Marina)
Click on the waterbody for an interactive map
Features
- About This Database (Integrated Report)
- Assessing Water Quality (Questions and Answers)
- Integrated Reporting Guidance
- Previous National Water Quality Reports
- EnviroMapper for Water
- AskWATERS
- EPA WATERS Homepage
- Exchange Network
- Assessment Database
- Statewide Statistical Surveys
- How's My Waterway Local Search tool
- Pollution Categories Summary Document
Water Quality Assessment Status for Reporting Year 2010
The overall status of this waterbody is Impaired.
Description of this table
| Designated Use | Designated Use Group | Status |
|---|---|---|
| Aquatic Life Use | Fish, Shellfish, And Wildlife Protection And Propagation | Impaired |
| Primary Contact Recreation | Recreation | Impaired |
Causes of Impairment for Reporting Year 2010
Description of this table
| Cause of Impairment | Cause of Impairment Group | Designated Use(s) | State TMDL Development Status |
|---|---|---|---|
| Dissolved Oxygen | Organic Enrichment/Oxygen Depletion | Aquatic Life Use, Primary Contact Recreation | TMDL needed |
| Enterococcus Bacteria | Pathogens | Primary Contact Recreation, Aquatic Life Use | TMDL needed |
| Fecal Coliform | Pathogens | Primary Contact Recreation, Aquatic Life Use | TMDL needed |
| Secchi Disk Transparency | Turbidity | Primary Contact Recreation, Aquatic Life Use | TMDL needed |
| Turbidity | Turbidity | Aquatic Life Use, Primary Contact Recreation | TMDL needed |
| pH | pH/Acidity/Caustic Conditions | Aquatic Life Use, Primary Contact Recreation | TMDL needed |
Probable Sources Contributing to Impairment for Reporting Year 2010
Description of this table
| Probable Source | Probable Source Group | Cause(s) of Impairment |
|---|---|---|
| Changes In Tidal Circulation/Flushing | Hydromodification | Dissolved Oxygen; Enterococcus Bacteria; Fecal Coliform; Secchi Disk Transparency; Turbidity; pH |
| Other Marina/Boating On-Vessel Discharges | Recreational Boating And Marinas | Dissolved Oxygen; Enterococcus Bacteria; Fecal Coliform; Secchi Disk Transparency; Turbidity; pH |
| Other Recreational Pollution Sources | Recreation And Tourism (Non-Boating) | Dissolved Oxygen; Enterococcus Bacteria; Fecal Coliform; Secchi Disk Transparency; Turbidity; pH |
TMDLs That Apply to this waterbody
No TMDL data have been recorded by EPA for this waterbody.
Previous Causes of Impairments Now Attaining All Uses
Description of this table
| Cause of Impairment | Cycles Listed | WQS Attainment Date | WQS Attainment Reason | WQS Attainment Comments |
|---|---|---|---|---|
| Transparency | 2004, 2006, 2008, 2010 | Jul-20-2006 | Applicable WQS attained; original basis for listing was incorrect. |