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Training

How Grand Bay's water quality program is interacting with a phosphate spill in their estuary

Date

Thursday, August 8, 2013
10:00 AM - 11:00 AM
Elkhorn Slough Reserve
Watsonville
Lunch is not needed

COST: FREE

REGISTRATION FOR THIS PROGRAM IS CLOSED


Contact

Grey Hayes
grey@elkhornslough.org
831-274-8700

Sponsors

Description

See also: Science to Decision Making, Sustainable Human Systems

In April of 2005, levees preventing runoff from the phosphate processing facility along Grand Bay NERR’s western border were breached after extended rainfall. Several million gallons of phosphate-filled wastewater were released into upper Bangs Lake. The data sonde at Bangs Lake picked up a large, fast drop in pH: from 7 to 4 in just an hour. A massive algal bloom and potential phosphate toxicity caused a huge fish kill. Oyster populations and marsh vegetation were also severely impacted. Phosphate concentrations remained high for several months. Reserve staff and other MS Department of Marine Resources personnel assisted the MS Department of Environmental Quality (MDEQ) in follow-up biological monitoring in addition to providing water quality and nutrient data from regular SWMP sampling. These data contributions were useful in assessing impacts from the spill, determining the appropriate mitigation and enforcement actions, and leading to better regulatory oversight of the facility.

Documents and Publications

Contact List
We encourage participants to download the contact list to assist with arranging a rideshare or to get in contact with someone you met at the workshop. Those interested in sharing a ride to the event are marked on the contact list.

DOCUMENT AUTHOR / SOURCE
WORKSHOP MATERIALS
Collaborative Use of SWMP Data in the Aftermath of a Phosphate Spill
PDF, 2.7MB
Kim Cressman, SWMP Coordinator, Grand Bay NERR; David Ruple, Manager, Grand Bay NERR; Dr. Mark Woodrey, Research Coordinator, Grand Bay NERR
Grand Bay NERR
August 8, 2013

Links

Tracking the Impacts of a Phosphate Spill in the Grand Bay NERR
http://estuaries.noaa.gov/ScienceData/Default.aspx?ID=291

Webinar recording
https://mmancusa.webex.com/mmancusa/ldr.php?AT=pb&SP=MC&rID=55079122&rKey=d434e86fd07c625b

Questions and Answers

Submit a question on this subject and we'll provide an answer. info@elkhornsloughctp.org