egret marsh stormwater park · floway, polishing ponds, and wetland system total nitrogen total...
TRANSCRIPT
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EGRET MARSH STORMWATER PARK
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10 MGD FROM LATERAL D CANAL
PUMP STATION
4.58 ACRE ALGAL TURF SCRUBBER
PRIMARY POLISHING POND
INTERMEDIATE POLISHING POND
FINAL POLISHING POND
WOOD STORK HABITAT
LATERAL C CANAL
HARVEST WATER POND
POLISHING POND RECYCLE PUMP STATION
TO INDIAN RIVER LAGOON
EGRET MARSH STORMWATER PARK FLOW SCHEMATIC
HARVESTED ALGAESCREENED ALGAE
SETTLED ALGAE
DECANT WATER
TREATED WATER Capacity: 10 MGD
Construction Cost ~ $7.28 Million
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APRIL 2009
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INTERMEDIATE POLISHING POND
FINAL POLISHING POND
WOOD STORK HABITAT AREA
COMPOST PAD
HARVEST WATER POND
DUCK & MOORHEN NURSERY
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NUTRIENTS REMOVED BY EGRET MARSH FLOWAY(Nutrient Reduction by Polishing Pond and Wetland Systems Not Included)
Total Nitrogen Total Phosphorus12,146 Pounds 2,891 Pounds6.07 Tons 1.45 Tons
April 13, 2010 startup** Floway taken out of service for repairs between 8-16-2012 and 2-5-2013
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TOTAL EGRET MARSH NUTRIENT REMOVALFLOWAY, POLISHING PONDS, AND WETLAND SYSTEM
Total Nitrogen Total Phosphorus23,150 Pounds 5,782 Pounds11.58 Tons 2.89 Tons
April 13, 2010 startup** Floway taken out of service for repairs between 8-16-2012 and 2-5-2013
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SUMMARY OF NUTRIENTS REMOVED THROUGH OCTOBER 9, 2013 forPC MAIN AND EGRET
MARSH
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POUNDS NITROGEN REMOVED
EGRET MARSH FLOWAY AND PC MAIN
TOTAL NITROGEN : 21,579 Pounds10.79 Tons
EQUIVALENT BAGS OF FERTILIZER: 5,395 Bags*
TOTAL INCLUDING REMOVALS BY EGRET MARSH POLISHING POND AND WETLAND SYSTEM:
TOTAL NITROGEN: 32,583 Pounds16.30 Tons
EQUIVALENT BAGS OF FERTILIZER: 8,146 Bags*
*based on a 40 pound bag of 10-5-10 (N-P-K) fertilizer
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POUNDS PHOSPHORUS REMOVEDEGRET MARSH FLOWAY AND PC MAIN
TOTAL PHOSPHORUS : 5,567 Pounds2.78 Tons
EQUIVALENT BAGS OF FERTILIZER: 2,784 Bags*
TOTAL INCLUDING REMOVALS BY EGRET MARSH POLISHING POND AND WETLAND SYSTEM
TOTAL PHOSPHORUS: 8,458 Pounds4.23 Tons
EQUIVALENT BAGS FERTILIZER: 4,229 Bags*
*based on a 40 pound bag of 10-5-10 (N-P-K) fertilizer
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$$ PER POUND OF POLLUTANT REMOVED
NITROGEN
EGRET MARSH $60 $35 $22
PC MAIN $154 $37 $37
PHOSPHORUS
EGRET MARSH $239 $140 $88
PC MAIN $541 $130 $130
CAPITAL COST OMITTED – O&M
ONLYINCLUDING
CAPITAL COSTINCLUDING
GRANT FUNDING
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INDIAN RIVER COUNTY’SEGRET MARSH REGIONAL STORMWATER PARK
WILDLIFE
INDIAN RIVER COUNTY STORMWATER DIVISION