Download - TIME LINE SOME BACKGROUND REASONS TO SUPPORT
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Environmental Protection CommissionEnvironmental Protection Commissionof Hillsborough Countyof Hillsborough County
Extending Piney Point Emergency PermitExtending Piney Point Emergency PermitNovember 3, 2003November 3, 2003
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• TIME LINE
• SOME BACKGROUND
• REASONS TO SUPPORT
EXTENSION REQUESTEXTENSION REQUEST
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September 11, 2003 - Piney Point Update Agency on Bay Management
September 18, 2003 - EPC voted unanimously to send a letter to FDEP Secretary Struhs requesting they explore extending the EPA Emergency Permit
September 29, 2003 – EPC Chairman sent request letter to Secretary Struhs
EXTENSION REQUEST EXTENSION REQUEST TIME LINE TIME LINE
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October 13, 2003 – Secretary Struhs contacted EPC Chairman Platt and advised that FDEP would formally request EPA extend the Emergency Permit
October 16, 2003 - EPC voted unanimously to send a letter to EPA Region 4 Administrator Palmer urging approval of the permit extension request from FDEP
TIME LINE TIME LINE
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October 21, 2003 – FDEP sent letter to EPA formally requesting an extension of the Emergency Permit
October 21, 2003 - EPC sent a letter to EPA urging approval of the extension request from FDEP
November 3, 2003 – Consideration of ABM support for FDEP Extension Request
TIME LINE TIME LINE
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• Reduce Inventory of Process Water and Initiate Closure Activities
• Long Term Water Management Plan (WMP)
• Closure Plan – Dewater, Line, Isolate, and Close Pond Storage Compartments
PRIMARY OBJECTIVE PRIMARY OBJECTIVE Piney PointPiney Point Closure Closure
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• Site has Received Excessive Rainfall during the last 12 months
• Average Rainfall Adds 160 MGal to the Site each year
• Closure Activities Delayed
• 2004 Dry Season Closure Plan – Close one stack compartment and prepare to close two additional compartments
MEETING WMP OBJECTIVEMEETING WMP OBJECTIVE
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• 600 MGal Ponded Process Water
• 600 MGal Pore Water
• Increase Storage so that Significant Closure Work can be Accomplished Prior to the 2004 Rainy Season
• Must Discharge “Double-Lime” Treated Water
WATER MANAGEMENT WATER MANAGEMENT CHALLENGE CHALLENGE
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• Water Balance Model Recalibrated
• Increase Target Wastewater Removal Rates (2 MGD to Over 4 MGD)
• Time Period – Minimum 3 to 5 Months
• Increase Storage so that Significant Closure Work can be Initiated
AMENDED WMP AMENDED WMP
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• Double Amount of Water Removed From 2 MGD to 4 MGD
• Increase Amount of Reverse Osmosis Water 0.6 MGD to a Minimum of 1.0 MGD (By 10/15/2003)
• Increase Amount of Double-lime Aeration Water Minimum of 3.0 MGD (By 10/15/2003)
• Resumption of Double-lime Aeration Water to Bishop Harbor
• Target Ammonia Nitrogen Loading Rates (WQ Modeling Report)
– 308 Pounds Per Day (15 Day Rolling Average)
– 600 Pounds Per Day (Maximum)
EMERGENCY ORDEREMERGENCY ORDERFIFTH MODIFICATION SEPTEMBER 5, 2003FIFTH MODIFICATION SEPTEMBER 5, 2003
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Potential Bishop Harbor Load
LTB Load Reduction Target
Overall Tampa Bay Load Reduction Target
N L
oad
(p
ou
nd
s p
er
day)
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• Risk of a Catastrophic Accident Remains until Site is Permanently Closed
• Immediate need to Reduce Water On-Site to Initiate Closure Activities
• RO is not the only Solution
• “Double – Lime” Treated Water must be Discharged somewhere
REASONS TO SUPPORT REASONS TO SUPPORT EXTENSION REQUEST EXTENSION REQUEST
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• Only Current High-Volume Alternative to Discharge to Bishop Harbor is Gulf Dispersion
• Extension will Reduce Discharges and Nitrogen Loading to Bishop Harbor
• Extending the Permit Removes an Additional 70 to 75 MGal per month from the Site
• Additional Water off-site improves Water Balance, Dam Safety and Minimizes the Risk of Accidental Discharges
REASONS TO SUPPORT REASONS TO SUPPORT EXTENSION REQUEST EXTENSION REQUEST
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• FDEP has met Current Conditions of Emergency Permit
• No Adverse Environmental Impacts to Marine Water Quality or Marine Life
• Continued Ocean Dispersal should be Part of a Multi-Faceted Treated Wastewater Reduction Plan
REASONS TO SUPPORT REASONS TO SUPPORT EXTENSION REQUEST EXTENSION REQUEST
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SHARE THE LOAD…
USE OTHER HIGH VOLUME ALTERNATIVES AS LONG AS POSSIBLE…
MINIMIZE THE LOAD TO BISHOP HARBOR AND TAMPA BAY !!!!
BOTTOM LINEBOTTOM LINE
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Environmental Protection CommissionEnvironmental Protection Commissionof Hillsborough Countyof Hillsborough County
Extending Piney Point Emergency PermitExtending Piney Point Emergency PermitNovember 3, 2003November 3, 2003