Nassau / St Marys Rivers (Group 4) - Verified ListHydrologic Units: Nassau River and St Marys RiverOGC CaseNumberPlanning UnitName WBIDWaterSegmentWaterbodyTypeWaterbodyClass11998 303(d)Parameters ofConcernParametersAssessed UsingThe ImpairedWaters RuleConcentrationCausing ImpairmentPriority For TMDLDevelopment2Projected Year ForTMDLDevelopment2CommentPP=Planning Period VP=Verified Period3(# Exceedances/# Samples)06-0562LOWER ST.MARYSRIVER 2140JACKSONCREEK ESTUARY 2MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0563NASSAURIVER 2156UNNAMEDBRANCH STREAM 3FDISSOLVEDOXYGEN <5.0 mg/LMEDIUM 2011VP - 15/22 EXCEEDANCES, VP MEDIAN = 4.25 mg/L, VPAVERAGE = 4.31 mg/L, VP MIN = 1.1 mg/L, VP MAX = 10. DATAFROM 2003, 2004. LINKED TO NUTRIENTS - VP TN = 2.016mg/L, VP TP = 1.2 mg/L. BOTH TN AND TP EXCEEDTHRESHOLDS. NO BOD DATA.06-0564NASSAURIVER 2156UNNAMEDBRANCH STREAM 3FCOLIFORMSFECALCOLIFORMS>400 colonies /100mLHIGH 2005VP - 7/22 EXCEEDANCES, VP MEDIAN = 292, VP AVERAGE =399, VP MIN = 13, VP MAX = 1,470. DATA FROM 2003, 2004.06-0565NASSAURIVER 2156UNNAMEDBRANCH STREAM 3FCOLIFORMSTOTALCOLIFORMS>2,400 colonies / 100mLHIGH 2005VP - 7/22 EXCEEDANCES, VP MEDIAN = 1,627, VP AVERAGE =2,296, VP MIN = 400, VP MAX = 6,400. ALL DATA FROM 2003,2004.06-0566NASSAURIVER 2174NASSAUSOUND ESTUARY 2MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0567NASSAURIVER 2198FORTGEORGERIVER ESTUARY 2MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0568NASSAURIVER 2140AJACKSONCREEK ESTUARY 2MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0569NASSAURIVER 2148BNASSAURIVER STREAM 3F IRON >1.0 mg/LMEDIUM 2011PP - 87/96 EXCEEDANCES, PP AVERAGE = 809 μg/L, PPMEDIAN = 722 μg/L, PP MAX = 1960 μg/L, PP MIN = 102 μg/L,DATA FROM 1994 - 1999. VP - 52/56 EXCEEDANCES, VPAVERAGE = 681 μg/L, VP MEDIAN = 557 μg/L, VP MAX = 1750μg/L, VP MIN = 1.2 μg/L, DATA FROM 1998-2005.06-0570NASSAURIVER 2149SOUTHAMELIARIVER ESTUARY 3MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0571NASSAURIVER 2153ALLIGATORCREEK STREAM 3FTOTALCOLIFORMS>2,400 colonies / 100mLMEDIUM 2011VP - 7/23 EXCEEDANCES, VP MEDIAN = 720, VP AVERAGE =1,870, VP MIN = 280, VP MAX = 7,400, DATA FROM 2001, 200406-0572NASSAURIVER 2157LITTLE MILLCREEK STREAM 3FCOLIFORMSTOTALCOLIFORMS>2,400 colonies / 100mLLOW 2010VP - 5/21 EXCEEDANCES, VP MEDIAN = 1,190, VP AVERAGE =1,825, VP MIN = 600, VP MAX = 4,800. ALL DATA FROM 2004.February 15, 20061 of 2 Florida Department of Environmental ProtectionNassau / St Marys Rivers (Group 4) - Verified ListHydrologic Units: Nassau River and St Marys RiverOGC CaseNumberPlanning UnitName WBIDWaterSegmentWaterbodyTypeWaterbodyClass11998 303(d)Parameters ofConcernParametersAssessed UsingThe ImpairedWaters RuleConcentrationCausing ImpairmentPriority For TMDLDevelopment2Projected Year ForTMDLDevelopment2CommentPP=Planning Period VP=Verified Period3(# Exceedances/# Samples)06-0573NASSAURIVER 2174A SOUTH END ESTUARY 3MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0574NASSAURIVER 2198AMARINA BAYAT FORT GEO ESTUARY 3MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0575NASSAUSOUND 8127NASSAUSOUNDOCEAN 1 ESTUARY 3MSHELLFISH(COLIFORMS)EXCEEDS SEASTHRESHOLDSMEDIUM 2011VERIFIED DUE TO DOWNGRADE IN SHELLFISH HARVESTINGCLASSIFICATION BASED ON WATER QUALITY06-0576ST. MARYSRIVER 2106LITTLE ST.MARYSRIVER STREAM 3FMERCURY (INFISH TISSUE)Exceeds DOHthreshold (>0.43mg/kg)LOW 2011BASED ON LARGE MOUTH BASS, 19 SAMPLES WITHAVERAGE TOTAL Hg OF 0.91 μg. FROM 2004. ANY TMDL FORMERCURY IN FISH TISSUE WILL APPLY TO THE WHOLEWATERBODY.06-0577ST. MARYSRIVER 2097D - KST. MARYSRIVER STREAM 3FMERCURY (INFISH TISSUE)Exceeds DOHthreshold (>0.43mg/kg)LOW 2011BASED ON LARGE MOUTH BASS, 19 SAMPLES WITHAVERAGE TOTAL Hg OF 0.91 μg. FROM 2004. ANY TMDL FORMERCURY IN FISH TISSUE WILL APPLY TO THE WHOLEWATERBODY. APPLIES TO 2097D, 2097E, 2097F, 2097G,2097H, 2097I, 2097J, AND 2097K.06-0578UPPER ST.MARYSRIVER 2211MIDDLEPRONG ST.MARYS STREAM 3F IRON >1.0 mg/LMEDIUM 2011PP - 19/56 EXCEEDANCES, PP MEDIAN = 766 μg/L, PP MAX =2,600 μg/L, PP MIN = 36 μg/L, DATA FROM 1994-2002. VP -17/47 EXCEEDANCES, VP MEDIAN = 637 μg/L, VP MAX = 2,600μg/L, VP MIN = 236 μg/L, DATA FROM 1998-2005.06-0579UPPER ST.MARYSRIVER 2339 OCEAN POND LAKE 3FMERCURY (INFISH TISSUE)Exceeds DOHthreshold (>0.43mg/kg)LOW 2011BASED ON LARGE MOUTH BASS, 20 SAMPLES WITH ANAVERAGE TOTAL Hg OF 0.83 ug/L FROM 2002.06-0580NASSAU / STMARYS 8998ATLANTICCOAST ESTUARY 3M MERCURY-FISHMERCURY (INFISH TISSUE)Exceeds DOHthreshold (>0.43mg/kg)LOW 2011APPLIES TO WBIDs 2124, 2149, 2174, 2174A, 2097A, 2827,8127A, 8127B, 8127C, 8128, 8128A, 8128B, 8128C, 8128D,8129, 8129A, 8129B, 8129C, AND 8129D. 87 King Mackerelaveraged 0.67 mg/Kg in 2002.BULL SHARK TISSUE MERCURYCONCENTRATIONS EXCEEDED 0.43 mg/kg. DATACOLLECTED IN 2003 - 2004.1Florida's waterbody classifications are defined as:1- Potable water supplies,2- Shellfish propagation or harvesting,3F- Recreation, propagation, and maintenance of a healthy, well-balanced in fresh water,3M - Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife in marine water, 4 -Agricultural water supplies, population of fish and wildlife 5 - Navigation, utility, and industrial use.2Priorities and schedule for TMDL development are only provided for waters in Category 5. Priorities set under the EPA Consent Decree were retained. Medium priority is used for newly listed waters identified under the IWR.3PP = PLANNING PERIOD (JANUARY 1, 1993 - DECEMBER 31, 2002); VP = VERIFIED PERIOD (JANUARY 1, 1998 - JUNE 30, 2005)February 15, 20062 of 2 Florida Department of Environmental Protection