Algae turns pond water pink
Published: October 30, 2012
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ST. THOMAS - A salt pond in the Cabrita Point area has turned bright pink.
Department of Planning and Natural Resources Division of Environmental Protection Director David Simon said Monday the unusual color is the result of an algae bloom coupled with high salinity water.
A nearby condominium complex has a reverse osmosis plant to make potable water from sea water. Simon said the plant discharges salty water into the pond, a process that is properly permitted by DPNR.
The condominium complex also has an irrigation system, which they have recently moved without informing DPNR. The runoff from the irrigation system is now ending up in the pond as well, creating a nutrient rich environment for algae.
The blooming algae in the high salinity water causes the bright pink water color, Simon said.
DPNR is investigating the situation and may issue a citation to the condominium complex for moving the irrigation system without notifying the agency.
- Contact reporter Aldeth Lewin at 714-9111 or email alewin@dailynews.vi.
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