## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 1of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1740 Charlotte Harbor Proper 2065A CHARLOTT E HARBOR (UPPER SEGMENT) ESTUARY 2 Nutrients (Chlorophyll-a) Median TN = 0.729 (n=354), Median TP = 0.185 (n=302), No BOD data ≤ 11 μg/L 2 5 5 Impaired Medium 2003 (13.12 μg/L) 2006 (14.93 μg/L)Annual average Chl a (ug/L) values exceeded 11 ug/L in 2003 (13.12) and 2006 (14.93). TN median = 0.729 mg/L (354 observations) and TP median = 0.185 mg/L (302 observations). Waterbody is nitrogen limited based on the median TN/TP ratio of 4.03 (276 values). No BOD observations.

09-1741 Charlotte Harbor Proper 2071 NO. PRONG ALLIGATOR CR STREAM 1 Coliforms Fecal Coliform ≤ 400 Counts / 100 mL 3c 5 5 Impaired Low 10/25

09-1742 Charlotte Harbor Proper 2073 MANGROVE POINT CANAL ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1743 Charlotte Harbor Proper 2074 ALLIGATOR CREEK STREAM 1 Dissolved Solids < 500 mg/L monthly avg.;

1,000 max 3a 5 5 Impaired Medium 27/79

09-1744 Charlotte Harbor Proper 2087 DIRECT RUNOFF TO BAY ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1745 Charlotte Harbor Proper 2090 DIRECT RUNOFF TO BAY ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1746 Charlotte Harbor Proper 2092B GASPARILL A ISLAND ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1747 Lemon Bay 1983A LEMON BAY ESTUARY 2 Fecal Coliform ≤ 43 MPN/100 mL 2 5 5 Impaired Low 34/239

09-1748 Lemon Bay 1983A LEMON BAY ESTUARY 2 Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 2of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1749 Lemon Bay 1983A1NORTH LEMON BAY ESTUARY 3M Nutrients (Chlorophyll-a) Median TN = 0.54 (n=230), Median TP = 0.21 (n=230), and Median BOD =

1.4 (n=219) ≤ 11 μg/L N/A 5 5 Impaired Medium 2001 (11.41 μg/L) 2002 (9.23 μg/L) 2003 (7.45 μg/L) 2004 (6.69 μg/L) 2005 (11.07 μg/L) 2006 (6.11 μg/L) 2007 (4.42 μg/L) Annual average Chl a (ug/L) values exceeded 11 ug/L in 2001 (11.41) and 2005 (11.07). Nutrients are impaired with median values of [TN = 0.54 (230 observations), TP = 0.21 (230 observations), and BOD = 1.4 (219 observations)]. Waterbody is nitrogen limited based on the median TN/TP ratio of 2.14 (227 values).

09-1750 Lemon Bay 1983B LEMON BAY ESTUARY 2 Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1751 Lemon Bay 2021 DIRECT RUNOFF TO BAY ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1752 Lemon Bay 2030 ALLIGATOR CREEK TIDAL ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1753 Lemon Bay 2030 ALLIGATOR CREEK TIDAL ESTUARY 3M Nutrients Nutrients (Chlorophyll-a) median TN = 1.01 (n=93), median TP = 0.2 (n=94), and median BOD

= 3.45 (n=18) ≤ 11 μg/L 2 5 5 Impaired Medium 2003 (10.04 ug/L) 2004 (8.34 ug/L) 2005 (7.39 ug/L) 2006 (8.38 ug/L) 2007 (18.29 ug/L) Annual average Chl a (ug/L) values did not exceed 11 ug/L in 2003 (10.04), 2004 (8.34), 2005 (7.387) and 2006 (8.375), but did exceed in 2007 (18.29). Nutrients are impaired with median values of [TN = 1.01 (93 observations), TP = 0.2 (94 observations), and BOD = 3.45 (18 observations)]. Delisted in Cycle 1, EPA completed TMDL for this parameter with a 28.2 percent reduction of total nitrogen and 57.8 percent reduction of BOD.

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 3of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1754 Lemon Bay 2030A ALLIGATOR CREEK STREAM 3F Nutrients (Chlorophyll-a) median TN = 1.47 (n=6), median TP = 0.2 (n=6), and median BOD =

2.75 (n=6) ≤ 20 μg/L N/A 5 5 Impaired Medium 2007 (33.25 ug/L)Annual average Chl a (ug/L) values exceeded 20 ug/L in 2007 (33.25). Nutrients are impaired with median values of [TN = 1.47 (6 observations), TP = 0.02 (6 observations), and BOD = 2.75 (6 observations)]. Waterbody is nitrogen limited based on the median TN/TP ratio of 7.37 (6 values).

09-1755 Lemon Bay 2039 FORKED CREEK ESTUARY 3M Copper ≤ 3.7 μg/L 3a 5 5 Impaired Medium 5/24

09-1756 Lemon Bay 2039 FORKED CREEK ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1757 Lemon Bay 2039 FORKED CREEK ESTUARY 3M Nutrients Nutrients (Chlorophyll-a) median TN = 1.11 (n=56), median TP = 0.27 (n=56), and median BOD

= 4.3 (n=24) ≤ 11 μg/L 3c 5 5 Impaired Medium 2006 (13.93 ug/L) 2007 (31.54 ug/L) Annual average Chl a (ug/L) values exceeded 11 ug/L in 2006 (13.93) and 2007 (31.54). Nutrients are impaired with median values of [TN = 1.11 (56 observations), TP = 0.27 (56 observations), and BOD = 4.3 (24 observations)]. Waterbody is nitrogen limited based on the median TN/TP ratio of 4.28 (55 values). EPA completed TMDL for this parameter, with a 20.0 percent reduction of total nitrogen. DEP is currently reviewing EPA TMDL for this waterbody.

09-1758 Lemon Bay 2042 DIRECT RUNOFF TO BAY ESTUARY 3M Dissolved Oxygen Total Nitrogen median TN = 1.10 (n=24), median TP = 0.56 (n=24), and median BOD

= 1.95 (n=24) ≥ 4.0 mg/L N/A 5 5 Impaired Medium 12/24 Impaired based on IWR thresholds for total nitrogen, EPA completed a TMDL for this parameter, with a 54.7 percent reduction of total nitrogen.

09-1759 Lemon Bay 2042 DIRECT RUNOFF TO BAY ESTUARY 3M Fecal Coliform ≤ 400 Counts / 100 mL 3a 5 5 Impaired Low 9/21

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 4of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1760 Lemon Bay 2042 DIRECT RUNOFF TO BAY ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1761 Lemon Bay 2049 GOTTFRIED CREEK ESTUARY 3M Nutrients Nutrients (Chlorophyll-a) Median TN = 1.01 (n=73), Median TP = 0.25 (n=73), and Median BOD

= 2.2 (n=24) ≤ 11 μg/L 3c 5 5 Impaired High 2005 (4.29 μg/L) 2006 (9.95 μg/L) 2007 (8.47 μg/L) Planning Listed in Cycle 1. Although, there are three consecutive years that the annual means are below the threshold 11μg/L this waterbody will be placed on the verified list due to nutrients as the causative pollutant for dissolved oxygen in this same waterbody. EPA completed TMDL for this parameter, with a 2.0 percent reduction of total nitrogen.

09-1762 Lemon Bay 2049 GOTTFRIED CREEK ESTUARY 3M Dissolved Oxygen Dissolved Oxygen Total Nitrogen, Total Phosphorus, Biochemical Oxygen Demand median TN = 1.014 (n=73), median TP = 0.246 (n=73), and

median BOD =

2.2 (n=24) ≥ 4.0 mg/L 5 5 5 Impaired Medium 16/42 Impaired based on IWR thresholds for total nitrogen, total phosphorus and biochemical oxygen demand. EPA completed a TMDL for this parameter, with a 2.0 percent reduction of total nitrogen. Volunteer data has been removed from this WBID due to the sampling method not meeting QA/QC requirements.

09-1763 Lemon Bay 2049 GOTTFRIED CREEK ESTUARY 3M Fecal Coliform ≤ 400 Counts / 100 mL 3b 5 5 Impaired Low 16/52

09-1764 Lemon Bay 2049 GOTTFRIED CREEK ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1765 Lemon Bay 2051 DIRECT RUNOFF TO BAY ESTUARY 3M 

### Mercury (Based on fish consumption

advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1766 Lemon Bay 2052 ROCK CREEK ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 5of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1767 Lemon Bay 2067 OYSTER CREEK ESTUARY 3M 

### Mercury (Based on fish consumption

advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1768 Lemon Bay 2068 BUCK CREEK ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1769 Lemon Bay 2068 BUCK CREEK ESTUARY 3M Nutrients (Chlorophyll-a) median TN = 1.005 (n=96), median TP = 0.09 (n=99), and median BOD =

3.05 (n=24) ≤ 11 μg/L 2 5 5 Impaired Medium 2007 (20.66 μg/L)Annual average Chl a (ug/L) values exceeded 11 ug/L in 2007 (20.66). Nutrients are impaired with median values of [TN = 1.0 (96 observations), TP = 0.09 (99 observations), and BOD = 3.05 (24 observations)].

09-1770 Lemon Bay 2072 DIRECT RUNOFF TO BAY ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1771 Lemon Bay 2075A MANASOTA KEY ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1772 Lemon Bay 2075B BARRIER ISLAND ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1773 Lemon Bay 2075C BARRIER ISLAND ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 6of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1774 Lemon Bay 2075D BARRIER ISLAND ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1775 Lemon Bay 2076 DIRECT RUNOFF TO BAY ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1776 Lemon Bay 2078A CORAL CREEK ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1777 Lemon Bay 2078B CORAL CREEK (EAST BRANCH) ESTUARY 3M Dissolved Oxygen Dissolved Oxygen Biochemical Oxygen Demand Median TN = 0.78 (n=24), Median TP = 0.05 (n=24),

Median BOD =

2.35 (n=24) ≥ 4.0 mg/L 3c 5 5 Impaired High 12/28 Impaired based on IWR thresholds and biochemical oxygen demand identified as the causative pollutant. Chl-a is being delisted for this waterbody due to a flaw in the cycle 1 assessment.

09-1778 Lemon Bay 2078B CORAL CREEK (EAST BRANCH) ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1779 Pine Island 2065E PINE ISLAND SOUND (UPPER SEGMENT) ESTUARY 2 Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1780 Pine Island 2065F MATLACHA PASS ESTUARY 2 Mercury (In Fish Tissue)Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1781 Pine Island 2065G PINE ISLAND SOUND LOWR ESTUARY 2 Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 7of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1782 Pine Island 2065H SAN CARLOS BAY ESTUARY 2 Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1783 Pine Island 2082C GATOR SLOUGH CANAL STREAM 3F Dissolved Oxygen Biochemical Oxygen Demand median TN = 0.6 (n=334), median TP = 0.016 (n=332) and median BOD

= 2.4 (n=327) ≥ 5.0 mg/L 3c 5 5 Impaired Medium 94/279 Impaired based on IWR thresholds for biochemical oxygen demand.



## 09-1784Pine Island 2082C GATOR SLOUGH CANAL STREAM 3F Nutrients (Hist. Chlorophyll-a) 50% above historic Chl-a value 4.05 μg/L N/A 5 5 Impaired Medium 2002 (3.75 μg/L) 2003 (9.75 μg/L) 2004 (4.68 μg/L) 2005 (3.35 μg/L) 2006 (2.21 μg/L) 2007 (5.21 μg/L) Annual average Historic Chl a (ug/L) values exceeded 50% above the 2.5 ug/L threshold for two consecutive years in 2003 and 2004.



## 09-1785Pine Island 2082C1WEST URBAN CAPE CORAL ESTUARY 3M Nutrients (Hist. Chlorophyll-a) 50% above historic Chl-a value 4.13 μg/L 3a 5 5 Impaired Medium 2002 (3.10 μg/L) 2003 (7.42 μg/L) 2005 (2.70 μg/L) 2006 (4.68 μg/L) 2007 (5.30 μg/L) Annual average historic Chl-a valuesexceeded 50% above the historic chla value of 2.75 μg/L for two consecutive years in 2006 (4.68 μg/L) and 2007 (5.30 μg/L)

09-1786 Pine Island 2092C NORTH CAPTIVA ISLAND ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1787 Pine Island 2092D CAPTIVA ISLAND ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1788 Pine Island 2092E PINE ISLAND ESTUARY 2 Fecal Coliform (3) ≤ 14 MPN/100 mL 3a 5 5 Impaired Medium 30/467 Exceeds Class 2 Criteria for shellfish waters.

09-1789 Pine Island 2092E PINE ISLAND ESTUARY 2 Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 8of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1790 Pine Island 2092F SANIBEL RIVER BASIN (formerly Sanibel Island) STREAM 3F Dissolved Oxygen Total Nitrogen, Biochemical Oxygen Demand median TN = 2.959 (n=24), median TP = 0.1

(n=24), and median BOD =

5.2 (n=24) ≥ 5.0 mg/L N/A 5 5 Impaired Medium 18/22 Impaired based on IWR thresholds for total nitrogen and biochemical oxygen demand.

09-1791 Pine Island 2092F SANIBEL RIVER BASIN (formerly Sanibel Island) STREAM 3F Nutrients (Chlorophyll-a) median TN = 2.959 (n=24), median TP = 0.1

(n=24), and median BOD =

5.2 (n=24) ≤ 20 μg/L N/A 5 5 Impaired Medium 2007 (37.53 μg/L)Cycle 1 impairment for TSI was adopted in error because assessment call was based on LakeWatch data, the waterbody is still impaired based on FDEP South District data for corrected chlorophyll-a. Annual average Chl a (ug/L) values exceeded 20 ug/L in 2007 (37.53). TN median = 2.55 mg/L (18 observations), TP median = 0.08 mg/L (18 observations), and BOD median = 4.3 mg/L (18 observations). Waterbody is phosphorus limited based on the median TN/TP ratio of 31.67 (18 values).

09-1792 Pine Island 3240A3HORSESHO E HERMOSA CANALS STREAM 3F Dissolved Oxygen Biochemical Oxygen Demand median TN = 0.41 (n=528), median TP = 0.01

(n=11) median value BOD = 2.4 (n=524) ≥ 5.0 mg/L N/A 5 5 Impaired Medium 27/187 DO exceeds IWR threshold. Biochemical oxygen demand identified as the causative pollutant.

09-1793 Pine Island 3240O PUNTA RASA COVE ESTUARY 2 Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1794 Pine Island 3240S SOUTH URBAN CAPE CORAL ESTUARY 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1795 Pine Island 8057 GULF OF MEXICO (LEE COUNTY: CAPTIVA ISLAND) COASTAL 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

## Charlotte Harbor Group 2 Basin: Draft Verified List Hydrologic Unit: Charlotte Harbor

May 14, 2009 9of9 Florida Department of Environmental Protection OGC Case Number Planning Unit WBID Water Segment

Name Waterbody Type Waterbody Class1 1998 303(d) Param. Of Concern Parameters Assessed Using

the Impaired Surface Waters

Rule (IWR) Dissolved Oxygen/Biology

Pollutant of

Concern DO / Nutrient / Biology - TN, TP, BOD Median Values (mg/L)2Concentration of Criterion or Threshold Not Met Previous EPA Integrated

Report Category†-

Cycle 1 Assessment3 Current EPA Integrated Report Category
†- Cycle 2 Assessment4 Current Integrated Category - Final

Assessment Current Assessment Status Priority for TMDL Development5 Verified Period (# of Exceedances/ # of Samples)6 Comments

09-1796 Pine Island 8058 GULF OF MEXICO (LEE COUNTY: SANIBEL ISLAND) COASTAL 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

09-1797 Pine Island 8058B BOWMANS BEACH BEACH 3M Bacteria (Beach Advisories) ≥ 21 days of beach advisories 2 5 5 Impaired High 2007 (21 days) Beach advisories≥ 21 days/yr in 2007.

09-1798 Pine Island 8059 GULF OF MEXICO (LEE COUNTY: SANIBEL ISLAND) COASTAL 3M Mercury (Based on fish consumption advisory) Exceeds DoH threshold (> 0.3 mg/kg) N/A 5 5 Impaired High N/A Confirmed recent data from 2002, 2003/2004 for coastal fish advisory for King Mackerel and Bull Shark with average Hg levels of 0.67 and 1.85 ug/L, respectively.

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 population of fish and wildlife 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 5 - Navigation, utility, and industrial use

2n is equal to the number of samples. When samples are collected at the same location less than 4 days apart, the median of those results represents a single sample for the purpose of determining n.

3The Cycle 1 assessment was done in 2003 and included data from that Verified Period (January 1, 1996 through June 30, 2003).

4The Cycle 2 assessment is the current assessment and includes data from the Verified Period (January 1, 2001 through June 30, 2008). †EPA's Integrated Report Category: 5 - Water quality standards are not attained and a TMDL is required.

5Where a parameter was 1998 303(d) listed the priority for TMDL development is the year provided and is assigned based on the consent decree schedule. Where a parameter was only identified as impaired under the IWR, a priority of “medium” was assigned. Exceptions are waters where the impairment poses a threat to potable water or human health, which have been assigned a “high” priority, and fecal coliform impairments, which have been assigned a “low” priority. All other listings as of this cycle are prioritized based on the following: it is our intent that listings with a "High" priority be addressed within the next 5 years, listings with a "Medium" priority be addressed within 5-10 years as resources allow, and listings with a "Low" priority be addressed within the next 10 years.

6VP- Verified Period (January 1, 2001 through June 30, 2008)

*A statewide TMDL for mercury, that will address this waterbody, is scheduled to be completed in 2012. Beach advisories are based on FL Dept of Health Enterococcus criterion of >103 CFU/100mL or Fecal Coliform criterion of≥400 CFU/100ml.

Beach advisory data is based on "2006 Beach Advisories" file created 04/16/2007 by Barbara Donner of FDEP. Fish advisory data is based on "2007 Fish Advisories" file created 07/11/2006 and updated 11/05/2007 by Barbara Donner of FDEP. The Group 2 Charlotte Harbor Master list is based on IWR Run 35_2.