Category Archives: Tributary

2.7.2. Arlington River

2.7.2.1.  About the Arlington River

Figure 2.24
Figure 2.29 The Arlington River Tributary (WBID 2265A).
  • East of downtown Jacksonville
  • Primary Land Use: Residential
  • Current TMDL reports:
    Nutrients, Mercury
  • Verified Impaired 2016 (final):
    None
  • WBID Area: 1.6 sq. mi.
  • Beneficial Use: Class III M (Recreational – Marine)

2.7.2.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Arlington River WBID 2265A (DEP 2014c) shown above. No water quality data for the selected parameters discussed below for the Arlington River were available in STORET for 2016-2017.  The filtered dataset was used to generate Table 2.3.

2.7.2.3. Discussion

Water quality data for the Arlington River are presented in Table 2.3. Average phosphorus levels were higher than the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k) and the tributary has thus been identified as impaired for nutrients. Elevated levels of phosphorus may be a result of effluent from the Monterey WWTF that is discharged into the river, fertilizer runoff from the surrounding residential area, or other unidentified sources. A TMDL report for nutrients was finalized in 2009 (Magley 2009c).

The Arlington River was identified as being impaired for mercury, based on elevated levels of mercury in fish tissue; however, this is being delisted (DEP 2016h) as it has been addressed by the statewide mercury TMDL (DEP 2013c). The Arlington River is being delisted for chlorophyll-a as it has been addressed by the Nutrients TMDL (DEP 2016h).

Historical water quality data for the Arlington River are available in previous versions of the River Report.

Table 2.3 Water quality data for Arlington River.

 Water QualityAverage and Number of Samples º
ParameterCriteria (SW)201620172018
Dissolved Oxygen (mg/L)≥4.0Not availableNot available7.07
(0 of 13 samples)
Total Nitrogen (mg/L)<1.54Not availableNot available1.07
(0 of 10 samples)
Total Phosphorus (mg/L)<0.12Not availableNot available0.11
(1 of 10 samples)
Chlorophyll-a (µg/L)<5.4Not availableNot available6.93
(6 of 10 samples)
Arsenic (µg/L)≥50Not availableNot available1.65
(0 of 10 samples)
Cadmium (µg/L)≥8.8Not availableNot available0.02
(0 of 10 samples)
Copper (µg/L)≥3.7Not availableNot available1.42
(0 of 10 samples)
Lead (µg/L)≥8.5Not availableNot available1.04
(0 of 10 samples)
Nickel (µg/L)≥8.3Not availableNot available0.58
(0 of 10 samples)
Silver (µg/L)≥0.92Not availableNot available0.01
(0 of 10 samples)
Zinc (µg/L)≥86Not availableNot available6.50
(0 of 10 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available380
(2 of 10 samples)
Turbidity (NTU)<29Not availableNot available7.87
(0 of 10 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard..

2.7.3. Big Fishweir Creek

2.7.3.1. About Big Fishweir Creek

Figure 2.25
Figure 2.30 Big Fishweir Creek (WBID 2280).

• West of Downtown, South of I-10
• Primary Land Use: Residential
• Current TMDL reports: Fecal Coliform with BMAP (2009)
• Verified Impaired 2016 (final):
Iron (2280A med)
• WBID Area: 3.7 sq. mi.
• Beneficial Use: Class III F (Recreational – Freshwater)

2.7.3.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Big Fishweir Creek WBID 2280, 2280A (freshwater), and 2280B (saltwater/marine) (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.4.

2.7.3.3. Discussion

Water quality data for Big Fishweir Creek are shown in Table 2.4. Big Fishweir Creek has been listed as Impaired for high levels of iron (DEP 2016j).  A TMDL report (Wainwright and Hallas 2009a) was released in 2009 to address Fecal coliform, and Big Fishweir Creek has been delisted from the Impaired Waters list (DEP 2016h) (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Subsequently, a BMAP to address this issue was legally adopted (DEP 2009b). Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

The last Annual Progress Report for this BMAP was published in 2016 and listed 16 active, ongoing projects underway by FDOT and JEA to address the BMAP in the Big Fishweir Creek watershed (DEP 2017c). FDEP reported improvement in the frequency of fecal coliform exceedances in the marine segment of Big Fishweir Creek, but recent fecal coliform measurements continue to show significant fecal coliform concentrations.

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

·       Arsenic

·       Cadmium

·       Copper

·       Lead

·       Nickel

·       Silver

·       Zinc

Historical water quality data for Big Fishweir Creek are available in previous versions of the River Report.

Table 2.4 Water quality data for Big Fishweir Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≤34% sat. (≤3.0)5.17
(0 of 14 samples)
5.23
(0 of 8 samples)
6.18
(0 of 12 samples)
Nitrate-nitrite N (mg/L)§<1.540.59
(0 of 12 samples)
Not availableNot available
Total Phosphorus (mg/L)<0.120.08
(0 of 23 samples)
0.08
(0 of 13 samples)
0.11
(3 of 23 samples)
Chlorophyll-a (µg/L)<201.70
(0 of 13 samples)
1.68
(0 of 7 samples)
0.65
(0 of 12 samples)
Arsenic (µg/L)≥501.13
(0 of 12 samples)
0.99
(0 of 7 samples)
1.97
(0 of 12 samples)
Cadmium (µg/L)≥0.30.03
(0 of 12 samples)
0.01
(0 of 7 samples)
0.02
(0 of 12 samples)
Copper (µg/L)≥9.31.11
(0 of 12 samples)
0.85
(0 of 7 samples)
1.52
(0 of 12 samples)
Lead (µg/L)≥3.20.42
(0 of 12 samples)
0.39
(0 of 7 samples)
0.59
(0 of 12 samples)
Nickel (µg/L)≥520.51
(0 of 12 samples)
0.44
(0 of 7 samples)
1.36
(0 of 12 samples)
Silver (µg/L)≥0.070.00
(0 of 12 samples)
0.01
(0 of 7 samples)
0.04
(1 of 12 samples)
Zinc (µg/L)≥1205.91
(0 of 12 samples)
3.39
(0 of 7 samples)
9.58
(0 of 12 samples)
Turbidity (NTU)≥4002.45
(0 of 13 samples)
2.63
(0 of 6 samples)
20
(0 of 1 sample)
<294.45
(0 of 12 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

 

2.7.4. Black Creek

2.7.4.1. About Black Creek

Figure 2.26
Figure 2.31 The Black Creek Tributary (WBID 2415A/B/C).
  • West of the St Johns River at the Clay/Duval county line
  • Primary Land Use: Forested
  • Current TMDL reports:
    Lead (2415B/C), Mercury (2415A/B/C)
  • Verified Impaired 2016 (final): None
  • WBID Area: 15.4 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.4.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Black Creek WBID 2415A/B/C (DEP 2014c) shown above. The aggregate (all three WBIDs) filtered dataset was used to generate Table 2.5.

2.7.4.3. Discussion

Water quality data for Black Creek are shown in Table 2.5. As compared to other tributaries in the LSJRB, Black Creek is less impacted for the majority of the assessed water quality parameters. Lead has been identified as impaired in Black Creek and a TMDL report was published in 2009 (Lewis and Mandrup-Poulsen 2009) to address this issue.  Other metals, such as copper, nickel, and silver were detected previously at higher concentrations.  Water quality data from recent years had suggested that the concentrations of these metals have been reduced and controlled, but there was an increase in the concentrations of some of these metals in 2018.

Historical water quality data for Black Creek are available in previous versions of the River Report.

Table 2.5 Water quality data for Black Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≤34% sat. (≤3.0)5.17
(0 of 14 samples)
5.23
(0 of 8 samples)
6.18
(0 of 12 samples)
Nitrate-nitrite N (mg/L)§<1.540.59
(0 of 12 samples)
Not availableNot available
Total Phosphorus (mg/L)<0.120.08
(0 of 23 samples)
0.08
(0 of 13 samples)
0.11
(3 of 23 samples)
Chlorophyll-a (µg/L)<201.70
(0 of 13 samples)
1.68
(0 of 7 samples)
0.65
(0 of 12 samples)
Arsenic (µg/L)≥501.13
(0 of 12 samples)
0.99
(0 of 7 samples)
1.97
(0 of 12 samples)
Cadmium (µg/L)≥0.30.03
(0 of 12 samples)
0.01
(0 of 7 samples)
0.02
(0 of 12 samples)
Copper (µg/L)≥9.31.11
(0 of 12 samples)
0.85
(0 of 7 samples)
1.52
(0 of 12 samples)
Lead (µg/L)≥3.20.42
(0 of 12 samples)
0.39
(0 of 7 samples)
0.59
(0 of 12 samples)
Nickel (µg/L)≥520.51
(0 of 12 samples)
0.44
(0 of 7 samples)
1.36
(0 of 12 samples)
Silver (µg/L)≥0.070.00
(0 of 12 samples)
0.01
(0 of 7 samples)
0.04
(1 of 12 samples)
Zinc (µg/L)≥1205.91
(0 of 12 samples)
3.39
(0 of 7 samples)
9.58
(0 of 12 samples)
Turbidity (NTU)≥4002.45
(0 of 13 samples)
2.63
(0 of 6 samples)
20
(0 of 1 sample)
<294.45
(0 of 12 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.5. Broward River

2.7.5.1. About the Broward River

Figure 2.29
Figure 2.32 The Broward River Tributary (WBID 2191A/B).
  • Between downtown and Jacksonville International Airport (JIA)
  • Primary Land Use: Residential/Forested
  • Current TMDL reports: Mercury
  • Verified Impaired 2016 (final): Fecal Coliform (2191B low)
  • WBID Area: 14.4 sq. mi.
  • Beneficial Use: Class III M/ F (Marine – 2191B, Freshwater – 2191A)

2.7.5.2. Data sources

Result data were downloaded from the FL STORET website (DEP 2010e) and filtered based on the stations (DEP 2010f) in Broward River WBID 2191A/B (DEP 2014c) shown above. No water quality data for the selected parameters discussed below for the Broward River were available in STORET for 2015-2017.

2.7.5.3. Discussion

Water quality data for the Broward River are shown in Table 2.6. Historically, average phosphorus levels were higher than the 2010 updated WQC (DEP 2015c; DEP 2016e; DEP 2016k). Historical maximum fecal coliform level at times exceeded the WQC of 400 colony-forming-units per 100 mL, and as a result, WBID 2191B is considered impaired for fecal coliform.  However, the last fecal coliform measurements reported for the Broward River date back to 2008, and no more recent data were available. The Broward River was identified as being impaired for mercury, based on elevated levels of mercury in fish tissue; however, it is being delisted (DEP 2016h) as it has been addressed by the statewide mercury TMDL (DEP 2013c).

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Total nitrogen

Historical water quality data for the Broward River are available in previous versions of the River Report.

Table 2.6 Water quality data for the Broward River.

 Water QualityAverage and Number of Samples º
ParameterCriteria201620172018
Dissolved Oxygen (mg/L)≤34% sat. (≤3.0) FWNot availableNot available5.63
(1 of 3 samples)
≤4.0 SWNot availableNot available8.35
(0 of 4 samples)
Total Phosphorus (mg/L)<0.12Not availableNot available0.24
(1 of 1 sample)
Chlorophyll-a (µg/L)<20 FWNot availableNot available2.10
(0 of 1 sample)
Arsenic (µg/L)≥50Not availableNot available1.31
(0 of 1 sample)
Cadmium (µg/L)≥0.3 FWNot availableNot available0.01
(0 of 2 samples)
Copper (µg/L)≥9.3 FWNot availableNot available2.65
(0 of 1 sample)
Lead (µg/L)≥3.2 FWNot availableNot available.91
(0 of 1 sample)
Nickel (µg/L)≥52 FWNot availableNot available1.02
(0 of 1 sample)
Silver (µg/L)≥0.07 FWNot availableNot available0.01
(0 of 1 sample)
Zinc (µg/L)≥120 FWNot availableNot available2.50
(0 of 1 sample)
Fecal Coliform (CFU/100 mL)<400Not availableNot available1550
(3 of 5 samples)
Turbidity (NTU)<29Not availableNot available12
(0 of 1 sample)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.6. Butcher Pen Creek

2.7.6.1. About Butcher Pen Creek

Figure 2.30
Figure 2.33 Butcher Pen Creek (WBID 2322).
  • A tributary of the Cedar River
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform with BMAP (2009)
  • Verified Impaired 2016 (final): None
  • WBID Area: 1.31 sq. miles
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.6.2. Data sources

Result data were downloaded from the FL STORET website (DEP 2010e) and filtered based on the stations (DEP 2010f) in Butcher Pen Creek WBID 2322 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.5.

2.7.6.3. Discussion

Water quality data for Butcher Pen Creek are shown in Table 2.7. Historical phosphorus levels were higher than the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k), but recent phosphorus data are lacking in STORET. The average fecal coliform level exceeded the WQC of 400 colony-forming-units per 100 mL in each of the last three years (Table 2.7). As a result, a TMDL report was published in 2005 (Wainwright 2005a) to address this issue. Subsequently, a BMAP to address this issue was legally adopted (DEP 2009b). The last Annual Progress Report for this BMAP was published in 2016 and listed 16 active, ongoing projects underway by FDOT and JEA to address the BMAP in the Butcher Pen Creek watershed (DEP 2017c). Despite these efforts, fecal coliform levels have remained high over the past three years. Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

Butcher Pen Creek was previously impaired for chlorophyll-a, but annual levels have fallen below the nutrient threshold, and it has been delisted for chlorophyll-a (DEP 2016h).

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Lead
  • Zinc
  • Cadmium
  • Nickel
  • Total nitrogen
  • Copper
  • Silver

Historical water quality data for Butcher Pen Creek are available in previous versions of the River Report.

Table 2.7 Water quality data for Butcher Pen Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)3.67
(8 of 21 samples)
4.06
(5 of 16 samples)
5.68
(1 of 11 samples)
Total Phosphorus (mg/L)<0.12Not available0.19
(2 of 2 samples)
0.14
(7 of 9 samples)
Chlorophyll-a (µg/L)<20Not available1.68
(0 of 7 samples)
16.76
(2 of 10 samples)
Fecal Coliform (CFU/100 mL)<4001700
(15 of 22 samples)
3900
(11 of 12 samples)
2100
(11 of 11 samples)
Turbidity (NTU)<29Not available4.90
(0 of 2 samples)
7.29
(0 of 10 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.7. Cedar River

2.7.7.1. About the Cedar River

Figure 2.31
Figure 2.32 The Cedar River Tributary (WBID 2262 and 2213P2).
  • At the I-10/I-295 Interchange
  • Primary Land Use: Residential/Forested
  • Current TMDL reports: Fecal/Total Coliform – 2262
  • Verified Impaired 2016 (final): Iron (2213P2, 2262B med)
  • WBID Area: 22.8 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.7.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Cedar River WBID 2262 and 2213P2 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.8.

2.7.7.3. Discussion

Water quality data for the Cedar River are shown in Table 2.8. The Cedar River feeds into the Ortega River and thus is not directly a tributary of the St. Johns River. Even so, the Cedar River is tidal in nature, varying in height by ~1 ft over the course of a day (SJRWMD 2010d). Salinity levels, as influenced by tidal movement, are relatively low indicating that the Ortega River buffers the Cedar River significantly from marine water intrusion. Average dissolved oxygen levels were above the WQC over the past three years. Average total phosphorus levels have been near to or higher than the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k). Heavy metal concentrations increased in 2018, with several water samples exceeding the WQC for cadmium and silver.

In 2004, Cedar River was identified as being impaired for both fecal and total coliforms (i.e., levels significantly above 400 CFU/100 mL) and as a result, a TMDL report was finalized in 2006 (Magley 2006b). (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Currently, a Basin Management Action Plan (BMAP) to address this impairment is under development, but the timeframe for its release is currently unknown.

Historical water quality data for the Cedar River are available in previous versions of the River Report.

Table 2.8 Water quality data for the Cedar River.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)7.40
(0 of 6 samples)
8.09
(0 of 3 samples)
7.10
(1 of 21 samples)
Total Nitrogen (mg/L)<1.540.73
(0 of 5 samples)
Not availableNot available
Total Phosphorus (mg/L)<0.120.10
(4 of 10 samples)
0.14
(4 of 6 samples)
0.09
(2 of 12 samples)
Chlorophyll-a (µg/L)<2014.11
(1 of 6 samples)
18.68
(2 of 3 samples)
26.69
(1 of 6 samples)
Arsenic (µg/L)≤501.87
(0 of 6 samples)
1.64
(0 of 3 samples)
4.10
(0 of 5 samples)
Cadmium (µg/L)≤0.30.01
(0 of 6 samples)
0.01
(0 of 3 samples)
0.31
(3 of 5 samples)
Copper (µg/L)≤9.32.28
(0 of 6 samples)
1.97
(0 of 3 samples)
4.40
(0 of 5 samples)
Lead (µg/L)≤3.21.09
(0 of 6 samples)
0.93
(0 of 3 samples)
1.72
(1 of 5 samples)
Nickel (µg/L)≤520.56
(0 of 6 samples)
0.57
(0 of 3 samples)
1.70
(0 of 5 samples)
Silver (µg/L)≤0.070.00
(0 of 6 samples)
0.02
(1 of 3 samples)
0.31
(3 of 5 samples)
Zinc (µg/L)≤1207.44
(0 of 6 samples)
5.98
(0 of 3 samples)
24.00
(0 of 5 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available1100
(9 of 16 samples)
Turbidity (NTU)<293.01
(0 of 6 samples)
4.94
(0 of 3 samples)
5.14
(0 of 7 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.8. Deep Creek

2.7.8.1. About Deep Creek

Figure 2.33
Figure 2.35 The Deep Creek Tributary (WBID 2549 and 2589).
  • East of the St. Johns at Palatka
  • Primary Land Use: Forested, Row Crop Agriculture
  • Current TMDL reports: Dissolved Oxygen – 2589
  • Verified Impaired 2016 (final): Iron (2589 med)
  • WBID Area: 60.5 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.8.2. Data sources

Data were downloaded from the FL STORET and WIN websites (DEP 2010f, NEW DEP 2018) and filtered based on the stations (DEP 2010g) in Deep Creek WBIDs 2549 and 2589 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.9.

2.7.8.3. Discussion

Water quality data for Deep Creek are shown in Table 2.9. Deep Creek is a tributary of the LSJR that drains the eastern banks around Hastings and Spuds, and thus receives substantial agricultural inputs, such as nutrients. Historical concentrations of total nitrogen were elevated but not above the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k), but recent data regarding nitrogen concentrations in the Deep Creek watershed are not available in STORET.  Levels of total phosphorus were significantly above the recommended WQC (Figure 2.31). Non-point source rainwater runoff is likely the major cause of the elevated nitrogen/phosphorus concentrations in this area. Chlorophyll-a has been removed from the recent verified impaired list, as the annual geometric mean chlorophyll-a concentrations have not exceeded the WQC (20 μg/L) more than once over the past three years, but there appears to be an increasing trend in chlorophyll-a concentrations.

In addition to nutrients, organic matter, temperature, and community structure (i.e., number and types of plants and animal species), among other biotic factors, may contribute to the lower dissolved oxygen concentrations in these tributaries. As a consequence of the above factors/conditions, a TMDL report for dissolved oxygen was published in 2009 (Magley 2009d) for WBID 2589 (Sixteen Mile Creek). Elevated concentrations of cadmium, copper, nickel, and silver were measured previously in Deep Creek, as compared to the Class III WQC for metals. Recent data indicate that these concentrations have remained below the WQC, but metal concentrations increased in 2018 compared to 2016 and 2017.

No recent measurements were available in WIN or STORET from 2016 to 2018 for the following parameters:

  • Fecal Coliform

Historical water quality data for Deep Creek are available in previous versions of the River Report.

Table 2.9 Water quality data for Deep Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)4.13
(8 of 17 samples)
4.65
(2 of 9 samples)
4.98
(1 of 9 samples)
Total Nitrogen (mg/L)<1.541.00
(1 of 16 samples)
3.46
(2 of 10 samples)
0.96
(0 of 2 samples)
Total Phosphorus (mg/L)<0.120.27
(26 of 34 samples)
0.22
(11 of 17 samples)
0.18
(10 of 17 samples)
Chlorophyll-a (µg/L)<203.11
(0 of 17 samples)
7.86
(1 of 9 samples)
8.67
(1 of 9 samples)
Arsenic (µg/L)≤501.03
(0 of 17 samples)
0.72
(0 of 8 samples)
2.13
(0 of 8 samples)
Cadmium (µg/L)≤0.30.01
(0 of 17 samples)
0.07
(0 of 8 samples)
0.09
(1 of 8 samples)
Copper (µg/L)≤9.31.21
(0 of 17 samples)
1.06
(0 of 8 samples)
2.44
(0 of 8 samples)
Lead (µg/L)≤3.2Not availableNot available0.50
(0 of 8 samples)
Nickel (µg/L)≤520.43
(0 of 17 samples)
0.46
(0 of 8 samples)
1.19
(0 of 8 samples)
Silver (µg/L)≤0.070.00
(0 of 17 samples)
0.01
(1 of 8 samples)
0.06
(1 of 8 samples)
Zinc (µg/L)≤1209.01
(0 of 17 samples)
7.56
(0 of 8 samples)
11.88
(0 of 8 samples)
Turbidity (NTU)<29Not availableNot available8.64
(0 of 9 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.9. Doctors Lake

2.7.9.1. About Doctors Lake

Figure 2.38
Figure 2.36 The Doctors Lake Tributary (WBID 2389 and 2410).
  • West of the St. Johns River in Clay County
  • Primary Land Use: Forested
  • Current TMDL reports: Nutrient – 2389 (draft), DO/Nutrient – 2410 (draft), Silver – 2389/2410
  • Verified Impaired 2016 (final): Nutrients (Chlorophyll-a 2389 med), Nutrients (Total P 2389 med)
  • WBID Area: 8.4 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.9.2. Data sources

Result data was downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Doctors Lake WBIDs 2389 and 2410 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.10, with freshwater stream WQC’s reported. These should be regarded as guidelines only because Swimming Pen creek (2410) is accessed as a stream, Doctors Lake (2389) is accessed as a lake and has different WQC’s.

2.7.9.3. Discussion

Water quality data for Doctors Lake are shown in Table 2.10. The average total phosphorus concentration has hovered around the criterion value for colored lakes (0.05 mg/L) the past three years.  Average dissolved oxygen levels are well above the SSAC. Doctors Lake has been identified as being impaired for nutrients (chlorophyll-a and total phosphorus) (DEP 2016j), and the final TMDL report to address this has been published (Magley 2009e). Recent water samples continue to show elevated phosphorus concentrations.

Elevated maximum arsenic, cadmium, copper, nickel, silver, and zinc concentrations were previously measured in Doctors Lake, and as a result, EPA has published a Silver TMDL (EPA 2010a). Doctors Lake is largely used for recreational activities such as boating, fishing, and waterskiing. These activities could account for some of the copper, nickel, and zinc contamination; however, the source of the other contamination is not clear. Recent data show that concentrations of these contaminants have remained roughly steady over the past three years.

No recent measurements were available in WIN or STORET from 2016 to 2018 for the following parameters:

  • Fecal Coliform

Historical water quality data for Doctors Lake are available in previous versions of the River Report. 

Table 2.10 Water quality data for Doctors Lake.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)8.34
(0 of 27 samples)
7.90
(1 of 20 samples)
6.23
(4 of 28 samples)
Total Nitrogen (mg/L)<1.541.00
(0 of 7 samples)
Not availableNot available
Total Phosphorus (mg/L)<0.050.06
(7 of 16 samples)
0.07
(7 of 14 samples)
0.10
(15 of 16 samples)
Chlorophyll-a (µg/L)<2023.59
(4 of 9 samples)
117.02
(5 of 8 samples)
14.63
(3 of 8 samples)
Arsenic (µg/L)≤501.56
(0 of 9 samples)
2.40
(0 of 6 samples)
2.75
(0 of 8 samples)
Cadmium (µg/L)≤0.30.00
(0 of 9 samples)
0.06
(0 of 6 samples)
0.03
(0 of 8 samples)
Copper (µg/L)≤9.31.00
(0 of 9 samples)
0.95
(0 of 6 samples)
2.75
(0 of 8 samples)
Lead (µg/L)≤3.2Not availableNot available0.54
(0 of 8 samples)
Nickel (µg/L)≤520.38
(0 of 9 samples)
0.22
(0 of 6 samples)
0.56
(0 of 8 samples)
Silver (µg/L)≤0.070.00
(0 of 9 samples)
0.00
(0 of 6 samples)
0.06
(1 of 8 samples)
Zinc (µg/L)≤1201.39
(0 of 9 samples)
1.29
(0 of 6 samples)
2.50
(0 of 8 samples)
Turbidity (NTU)<29Not availableNot available4.38
(0 of 7 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.10. Dunns Creek/Crescent Lake

2.7.10.1. About Dunns Creek/Crescent Lake

Figure 2.40
Figure 2.37 The Dunns Creek/Crescent Lake Tributary (WBID 2606A/B).
  • East of the St. Johns River in Flagler County
  • Primary Land Use: Forested/Wetlands
  • Current TMDL reports: Mercury – 2606B, Nutrients – 2606B (draft)
  • Verified Impaired 2016 (final): Fecal Coliform (2606A low), Nutrients (Chlorophyll-a, Total P 2606B med)
  • WBID Area: 585 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.10.2. Data sources

Result data was downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Dunns Creek/Crescent Lake WBIDs 2606A/B (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.11, with freshwater stream WQC’s reported. These should be regarded as guidelines only because Dunns Creek (2606A) is accessed as a stream, Crescent Lake (2606B) is accessed as a lake and has different WQC’s.

2.7.10.3. Discussion

Water quality data for Dunns Creek/Crescent Lake are shown in Table 2.11. Dunns Creek (WBID 2606A) was identified as being impaired for mercury, based on elevated levels of mercury in fish tissue, however this is being delisted (DEP 2016h) as it has been addressed by the statewide mercury TMDL (DEP 2013c).

This tributary is a significant non-point-source contributor to nutrient levels in the St. Johns River (Magley and Joyner 2008), and a TMDL for Nutrients was adopted (DEP 2017a) for Crescent Lake based on its Trophic State Index (TSI), calculated from the total nitrogen (TN), total phosphorus (TP), and chlorophyll-a levels. Crescent Lake is listed on the final verified list for chlorophyll-a and total phosphorus (DEP 2016j).  Data for total phosphorus concentrations were available for Crescent Lake (2606B) for the past three years, but no new measurements of total phosphorus in Dunns Creek were available in STORET after 2014. The average total phosphorus concentration in Crescent Lake has hovered around the criterion value for colored lakes (0.05 mg/L) from 2015 to 2017, but all of the water samples in 2018 exceeded the total phosphorus WQC.

No recent measurements were available in WIN or STORET from 2016 to 2018 for the following parameter:

  • Fecal Coliform

Historical water quality data for Dunns Creek/Crescent Lake are available in previous versions of the River Report.

Table 2.11 Water quality data for Dunns Creek/Crescent Lake.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)7.62
(1 of 45 samples)
7.38
(0 of 18 samples)
6.80
(1 of 37 samples)
Total Nitrogen (mg/L)<1.541.11
(1 of 17 samples)
Not availableNot available
Total Phosphorus (mg/L)<0.050.06
(19 of 33 samples)
0.04
(6 of 16 samples)
0.10
(20 of 20 samples)
Chlorophyll-a (µg/L)<2017.98
(5 of 20 samples)
24.96
(5 of 8 samples)
5.48
(0 of 11 samples)
Arsenic (µg/L)≤500.88
(0 of 17 samples)
0.92
(0 of 8 samples)
242
(0 of 11 samples)
Cadmium (µg/L)≤0.30.00
(0 of 17 samples)
0.06
(0 of 8 samples)
0.05
(0 of 11 samples)
Copper (µg/L)≤9.30.84
(0 of 17 samples)
0.76
(0 of 8 samples)
2.79
(0 of 11 samples)
Lead (µg/L)≤3.20.41
(0 of 17 samples)
0.36
(0 of 8 samples)
1.07
(0 of 11 samples)
Nickel (µg/L)≤520.30
(0 of 17 samples)
0.47
(0 of 8 samples)
1.20
(0 of 11 samples)
Silver (µg/L)≤0.070.00
(0 of 17 samples)
0.01
(0 of 8 samples)
0.04
(1 of 11 samples)
Zinc (µg/L)≤1201.29
(0 of 17 samples)
1.21
(0 of 8 samples)
4.77
(0 of 11 samples)
Turbidity (NTU)<294.33
(0 of 19 samples)
8.67
(0 of 7 samples)
4.90
(0 of 11 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.11. Durbin Creek

2.7.11.1. About Durbin Creek

Figure 2.42
Figure 2.43 The Durbin Creek Tributary (WBID 2365).
  • East of the St. Johns River South of I-295
  • Primary Land Use: Forested
  • Current TMDL reports: Fecal Coliform, Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 26.2 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.11.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Durbin Creek WBID 2365 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.13.

2.7.11.3. Discussion

Water quality data for Durbin Creek are shown in Table 2.13. Historically, average dissolved oxygen levels in Durbin Creek were relatively low when compared to other tributaries of the LSJRB. However, no causative pollutant (specific environmental condition) has been identified, and thus no TMDL report is required as it is the “natural condition” of the water body (DEP 2009c). A TMDL report is available for fecal coliform in Durbin Creek (Magley 2006a). (Note: the data analyses in the TMDL are based on different criteria than that used in this report).

Historical water quality data for Durbin Creek are available in previous versions of the River Report.

Table 2.13 Water quality data for Durbin Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)3.67
(2 of 7 samples)
5.93
(0 of 3 samples)
5.57
(0 of 6 samples)
Total Nitrogen (mg/L)<1.540.97
(0 of 5 samples)
Not availableNot available
Total Phosphorus (mg/L)<0.120.09
(1 of 9 samples)
0.06
(0 of 6 samples)
0.11
(1 of 6 samples)
Chlorophyll-a (µg/L)<200.73
(0 of 6 samples)
0.61
(0 of 3 samples)
1.50
(0 of 3 samples)
Arsenic (µg/L)≤500.41
(0 of 5 samples)
0.41
(0 of 3 samples)
1.92
(0 of 3 samples)
Cadmium (µg/L)≤0.30.03
(0 of 5 samples)
0.03
(0 of 3 samples)
0.03
(0 of 3 samples)
Copper (µg/L)≤9.30.49
(0 of 5 samples)
0.27
(0 of 3 samples)
2.75
(0 of 3 samples)
Lead (µg/L)≤3.20.46
(0 of 5 samples)
0.26
(0 of 3 samples)
0.93
(0 of 3 samples)
Nickel (µg/L)≤520.50
(0 of 5 samples)
1.06
(0 of 3 samples)
2.75
(0 of 3 samples)
Silver (µg/L)≤0.070.00
(0 of 5 samples)
0.00
(0 of 3 samples)
0.03
(0 of 3 samples)
Zinc (µg/L)≤1206.74
(0 of 5 samples)
3.82
(0 of 3 samples)
19.17
(0 of 3 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available72
(0 of 3 samples)
Turbidity (NTU)<296.83
(0 of 6 samples)
4.98
(0 of 3 samples)
34.91
(1 of 3 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.12. Ginhouse Creek

2.7.12.1. About Ginhouse Creek

Figure 2.43
Figure 2.44 The Ginhouse Creek Tributary (WBID 2248).
  • South of the St. Johns River just west of Craig Airfield
  • Primary Land Use: Residential
  • Current TMDL reports: Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 2.0 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.12.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Ginhouse Creek WBID 2248 (DEP 2014c) shown above. No water quality data for the selected parameters discussed below for Ginhouse Creek were available in STORET for 2015-2017.

2.7.12.3. Discussion

No water quality data are available for Ginhouse Creek after 2014, and no data for arsenic, cadmium, copper, lead, nickel, silver, and zinc were available in WIN or STORET going back to 2005. Average fecal coliform levels were elevated and above the WQC as of 2013, but Ginhouse Creek is not currently identified as impaired.  No current data regarding Fecal Coliform are available in WIN or STORET.

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Dissolved oxygen
  • Cadmium
  • Zinc
  • Nitrate-nitrite nitrogen
  • Copper
  • Fecal Coliform
  • Total phosphorus
  • Lead
  • Turbidity
  • Chlorophyll-a
  • Nickel
  • Arsenic
  • Silver

Historical water quality data for these parameters in Ginhouse Creek are available in previous versions of the River Report.

2.7.13. Goodbys Creek

2.7.13.1. About Goodbys Creek

Figure 2.44
Figure 2.45 The Goodbys Creek Tributary (WBID 2326).
  • East of the St. Johns River opposite NAS Jacksonville
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform with BMAP (2009), Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 5.1 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.13.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Goodbys Creek WBID 2326, 2326A (freshwater), and 2326B (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.14.

2.7.13.3. Discussion

Water quality data for Goodbys Creek are shown in Table 2.14. Previous average phosphorus levels in Goodbys Creek exceeded the recently updated WQC (EPA 2010b), but recent data suggest that the average phosphorus levels have held roughly steady near the WQC.  Average dissolved oxygen in the freshwater portion of Goodbys Creek (2326A) is above the WQC, and measurements in the saltwater portion (2326B) indicate improving dissolved oxygen levels over the past three years.  Similarly, chlorophyll-a concentrations in the freshwater portion of Goodbys Creek were within acceptable limits, but average chlorophyll-a concentrations in the marine portion exceeded the WQC.  There are limited data in WIN or STORET regarding water quality in general in the marine portion of Goodbys Creek.

The fecal coliform level, averaged over all the stations in Goodbys Creek, is below the critical level of 2.6, which is the logarithm of the state maximum of 400 colony-forming-units per 100 mL. A TMDL report is available for fecal coliform in Goodbys Creek (Wainwright 2005b). (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Subsequently, a BMAP for Goodbys Creek was legally adopted in 2009 (DEP 2009b).  The last Annual Progress Report for this BMAP was published in 2016 and listed 18 active, ongoing projects underway by FDOT and JEA to address the BMAP in the Goodbys Creek watershed (DEP 2017c). FDEP reported improvement in the frequency of fecal coliform exceedances in the marine segment of Goodbys Creek, and recent fecal coliform measurements had agreed with this assessment. Average fecal coliform concentrations appear to be trending downward and were around the WQC in 2017 but rose again in 2018. Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

Historical water quality data for Goodbys Creek are available in previous versions of the River Report.

Table 2.14 Water quality data for Goodbys Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0) FW5.02
(3 of 12 samples)
5.14
(0 of 9 samples)
5.91
(0 of 12 samples)
≥4.0 SW2.40
(1 of 1 samples)
4.06
(2 of 4 samples)
6.66
(0 of 12 samples)
Total Nitrogen (mg/L)<1.54Not available0.74
(0 of 9 samples)
0.73
(0 of 20 samples)
Total Phosphorus (mg/L)<0.12Not available0.13
(0 of 6 samples)
0.09
(7 of 20 samples)
Chlorophyll-a (µg/L)<20 FWNot available1.70
(0 of 2 samples)
2.41
(0 of 12 samples)
<5.4 SWNot available12.43
(3 of 4 samples)
24.19
(8 of 8 samples)
Arsenic (µg/L)≤50 FWNot available4.18
(0 of 2 samples)
3.07
(0 of 12 samples)
Cadmium (µg/L)≤0.3 FWNot available0.01
(0 of 2 samples)
0.01
(0 of 12 samples)
Copper (µg/L)≤9.3 FWNot available0.40
(0 of 2 samples)
0.81
(0 of 12 samples)
Lead (µg/L)≤3.2 FWNot available0.10
(0 of 2 samples)
0.15
(0 of 12 samples)
Nickel (µg/L)≤52 FWNot available0.35
(0 of 2 samples)
0.53
(0 of 12 samples)
Silver (µg/L)≤0.07 FWNot available0.01
(0 of 2 samples)
0.01
(0 of 12 samples)
Zinc (µg/L)≤120 FWNot available2.50
(0 of 2 samples)
2.50
(0 of 12 samples)
Fecal Coliform (CFU/100 mL)<400530
(7 of 13 samples)
380
(2 of 6 samples)
1900
(14 of 23 samples)
Turbidity (NTU)<29Not available5.97
(0 of 6 samples)
7.90
(7 of 20 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.14. Greenfield Creek

2.7.14.1. About Greenfield Creek

Figure 2.46
Figure 2.47 Greenfield Creek (WBID 2240A/B).
  • West of the Intracoastal Waterway
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform with BMAP (2010), Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 2.9 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.14.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Greenfield Creek WBID 2240A (marine) and 2240B (freshwater) (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.15.

2.7.14.3. Discussion

Water quality data for Greenfield Creek are shown in Table 2.15. Average phosphorus levels were historically higher than the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k), but data from 2017 and 2018 indicate that average concentrations of phosphorus and dissolved oxygen were within acceptable limits.  Limited recent sampling suggest that chlorophyll-a concentrations are decreasing.  However, only limited data are available in WIN and in STORET for these parameters, and these measurements are all taken from the marine portion of Greenfield Creek (2240A).  Dissolved oxygen had been removed from the verified impaired list (DEP 2016j) in Greenfield Creek. Greenfield Creek was verified impaired for mercury (DEP 2016j), but this has been addressed in the statewide mercury TMDL already in place (DEP 2013c).

A TMDL report (Wainwright and Hallas 2009a) was released to address fecal coliform, and a BMAP for Greenfield Creek (DEP 2010a) was legally adopted in August 2010. It describes sources of fecal coliform in the watershed, and completed and ongoing activities conducted by state and local agencies that are anticipated to reduce fecal coliform loading in the tributary. The Greenfield Creek watershed does not contain any permitted point sources for industrial wastewater. It contains the Girvin Road Landfill, which has been inactive since 1992; this landfill received not only solid waste, but sludge from the Neptune Beach Sewage Treatment Plant. The watershed also contains numerous outfalls for stormwater discharge. The last Annual Progress Report for this BMAP was published in 2016 and listed 20 active, ongoing projects underway by FDOT and JEA to address the BMAP in the Greenfield Creek watershed (DEP 2017c). FDEP reported improvement in the frequency of fecal coliform exceedances in the freshwater segment of Greenfield Creek, but the last fecal coliform measurements in Greenfield Creek before 2018 date back to 2008.  Recent measurements indicate ongoing issues with fecal coliform concentrations. Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Lead
  • Zinc
  • Cadmium
  • Nickel
  • Copper
  • Silver

Historical water quality data for these parameters in Greenfield Creek are available in previous versions of the River Report.

Table 2.15 Water quality data for Greenfield Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0) FWNot availableNot available7.10
(0 of 15 samples)
≥4.0 SWNot available4.87
(0 of 4 samples)
4.27
(5 of 14 samples)
Total Nitrogen (mg/L)<1.54Not availableNot available0.92
(0 of 11 samples)
Total Phosphorus (mg/L)<0.12Not available0.07
(0 of 4 samples)
0.07
(0 of 12 samples)
Chlorophyll-a (µg/L)<20 FWNot availableNot available2.42
(0 of 7 samples)
<5.4 SWNot available6.58
(3 of 4 samples)
1.97
(1 of 5 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available760
(10 of 26 samples)
Turbidity (NTU)<29 SWNot available8.45
(0 of 4 samples)
5.11
(0 of 12 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.15. Hogan Creek

2.7.15.1. About Hogan Creek

Figure 2.47
Figure 2.48 The Hogan Creek Tributary (WBID 2252).
  • Downtown Jacksonville
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform with BMAP (2009), Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 3.4 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.15.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Hogan Creek WBID 2252 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.16.

2.7.15.3. Discussion

Water quality data for Hogan Creek are shown in Table 2.16.  No data were available in STORET for 2016, only two measurements were performed in 2017, and no metal data were available for 2018, limiting the utility of these measurements in assessing the water quality in Hogan Creek.  Historical average phosphorus levels were higher than the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k), and the average phosphorus level in 2017 was near the WQC. Chlorophyll-a and dissolved oxygen concentrations appear to be within acceptable limits.

A TMDL for fecal coliform in Hogan Creek was finalized in 2006 (Wainwright 2006d). (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Subsequently, a BMAP for Hogan Creek was legally adopted in December 2009 (DEP 2009b). Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2. The last Annual Progress Report for this BMAP was published in 2016 and listed 21 active, ongoing projects underway by FDOT and JEA and 2 projects completed in 2016 (pump station rebuilding by JEA, flood improvements by COJ)  to address the BMAP in the Hogan Creek watershed (DEP 2017c). FDEP reported improvement in the frequency of fecal coliform exceedances in the freshwater segment of Hogan Creek, but the last fecal coliform measurements in Hogan Creek available in STORET prior to 2018 date back mainly to 2008, with a single measurement in 2011.  Recent measurements suggest ongoing issues with fecal coliform concentrations.

In 2012, COJ worked with the US Army Corps of Engineers to investigate the potential to remediate and restore the aquatic ecosystem through removal of accumulated sediment, removal of exotic vegetation, and creation of wetland habitats.  Fourteen sites within the Hogan Creek watershed were under consideration for restoration, but sampling of ten of these sites in 2003 revealed hazardous, toxic, and radioactive waste contamination in both the creek itself and the adjacent lands.  Ash deposits dating back to the early 20th century can be found in the Hogan Creek watershed, and these are known sources of hazardous and toxic waste. Removal of these hazardous materials would prevent them from leaching into the creek and being taken up by plants and animals, but this (potentially extensive) work would need to be performed and paid for by either COJ or an organization contracted by COJ to do so.  The USACE elected not to proceed with any work or action until these hazardous materials were removed, after which the project could be reconsidered (USACE 2012a).

Historical water quality data for Hogan Creek are available in previous versions of the River Report.

Table 2.16 Water quality data for Hogan Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)Not available3.75
(0 of 2 samples)
6.46
(0 of 43 samples)
Total Nitrogen (mg/L)<1.54Not available0.78
(0 of 2 samples)
0.97
(0 of 10 samples)
Total Phosphorus (mg/L)<0.12Not available0.11
(0 of 2 samples)
0.12
(4 of 12 samples)
Chlorophyll-a (µg/L)<20Not available8.15
(0 of 2 samples)
5.42
(1 of 12 samples)
Arsenic (µg/L)≤50Not available1.62
(0 of 2 samples)
Not available
Cadmium (µg/L)≤0.3Not available0.02
(0 of 2 samples)
Not available
Copper (µg/L)≤9.3Not available1.68
(0 of 2 samples)
Not available
Lead (µg/L)≤3.2Not available1.90
(0 of 2 samples)
Not available
Nickel (µg/L)≤52Not available0.46
(0 of 2 samples)
Not available
Silver (µg/L)≤0.07Not available0.01
(0 of 2 samples)
Not available
Zinc (µg/L)≤120Not available7.80
(0 of 2 samples)
Not available
Fecal Coliform (CFU/100 mL)<400Not availableNot available2400
(14 of 38 samples)
Turbidity (NTU)<29Not available4.60
(0 of 2 samples)
4.67
(0 of 12 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.16. Intracoastal Waterway

2.7.16.1. About the Intracoastal Waterway

Figure 2.48
Figure 2.49 The Intracoastal Waterway Tributary (WBID 2205C).
  • Near the mouth of the St. Johns River
  • Primary Land Use: Marsh/Wetland (Land Cover)
  • Current TMDL reports: Mercury
  • Verified Impaired 2016 (final): Fecal Coliform (low), Iron (med)
  • WBID Area: 23.9 sq. mi.
  • Beneficial Use: Class III M (Recreational – Marine)

2.7.16.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Intracoastal Waterway (ICW) WBID 2205C (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.17.

2.7.16.3. Discussion

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Intracoastal Waterway (ICW) WBID 2205C (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.17.

Table 2.17 Water quality data for the Intracoastal Waterway.

 Water QualityAverage and Number of Samples º
ParameterCriteria (SW)201620172018
Dissolved Oxygen (mg/L)≥4.06.36
(0 of 6 samples)
5.66
(1 of 14 samples)
6.20
(0 of 24 samples)
Total Nitrogen (mg/L)<1.540.50
(0 of 3 samples)
Not availableNot available
Total Phosphorus (mg/L)<5.42.59
(0 of 3 samples)
4.20
(2 of 9 samples)
0.10
(1 of 22 samples)
Chlorophyll-a (µg/L)<112.59
(0 of 3 samples)
4.20
(0 of 9 samples)
4.57
(5 of 11 samples)
Arsenic (µg/L)≤5018.19
(0 of 6 samples)
10.99
(0 of 10 samples)
6.36
(0 of 22 samples)
Cadmium (µg/L)≤8.80.09
(0 of 6 samples)
0.18
(0 of 10 samples)
0.50
(0 of 22 samples)
Copper (µg/L)≤3.71.19
(0 of 6 samples)
1.36
(0 of 10 samples)
4.36
(17 of 22 samples)
Lead (µg/L)≤8.50.14
(0 of 6 samples)
0.11
(0 of 10 samples)
0.50
(0 of 22 samples)
Nickel (µg/L)≤8.30.54
(0 of 6 samples)
0.58
(0 of 10 samples)
1.00
(0 of 22 samples)
Silver (µg/L)≤0.92*0.03
(0 of 6 samples)
0.01
(0 of 10 samples)
0.50
(0 of 22 samples)
Zinc (µg/L)≤862.70
(0 of 6 samples)
3.02
(0 of 10 samples)
5.00
(0 of 22 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available1100
(1 of 1 sample)
Turbidity (NTU)<293.96
(0 of 3 samples)
6.98
(0 of 9 samples)
6.13
(0 of 10 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.17. Julington Creek

2.7.17.1. About Julington Creek

Figure 2.49
Figure 2.50 The Julington Creek Tributary (WBID 2351).
  • East of the St. Johns River at the I-95/I-295/9A intersection
  • Primary Land Use: Marsh/Wetland (Land Cover)
  • Current TMDL reports: Fecal Coliform, Mercury
  • Verified Impaired 2016 (final): Iron (med)
  • WBID Area: 20.4 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.17.2. Data sources

Result data was downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Julington Creek WBID 2351 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.18.

2.7.17.3. Discussion

Water quality data for Julington Creek are shown in Table 2.18, but the data available in WIN and STORET for Julington Creek are extremely limited, with no measurements reported for 2017. Julington Creek was identified as being impaired for iron (DEP 2016j).

The fecal coliform level, averaged over all the stations in Julington Creek, were historically higher than the WQC of 400 colony-forming-units (CFU) per 100 mL. Thus, a TMDL for fecal coliform was published in 2009 (Rhew 2009d). (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Limited measurements from 2016 and 2018 indicate fecal coliform levels that are near or slightly higher than the WQC.

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Total nitrogen

Historical water quality data for Julington Creek are available in previous versions of the River Report.

Table 2.18 Water quality data for Julington Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)7.54
(0 of 4 samples)
Not available6.97
(0 of 13 samples)
Total Phosphorus (mg/L)<0.12Not availableNot available0.05
(0 of 1 sample)
Chlorophyll-a (µg/L)<20Not availableNot available2.90
(0 of 1 sample)
Arsenic (µg/L)≤50Not availableNot available1.32
(0 of 1 sample)
Cadmium (µg/L)≤0.3Not availableNot available0.01
(0 of 1 sample)
Copper (µg/L)≤9.3Not availableNot available2.49
(0 of 1 sample)
Lead (µg/L)≤3.2Not availableNot available0.13
(0 of 1 sample)
Nickel (µg/L)≤52Not availableNot available0.50
(0 of 1 sample)
Silver (µg/L)≤0.07Not availableNot available0.01
(0 of 1 sample)
Zinc (µg/L)≤120Not availableNot available2.50
(0 of 1 sample)
Fecal Coliform (CFU/100 mL)<400400
(2 of 4 samples)
Not available590
(7 of 12 samples)
Turbidity (NTU)<29Not availableNot available4.00
(0 of 1 sample)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.18. McCoy Creek

2.7.18.1. About McCoy Creek

Figure 2.50
Figure 2.51 The McCoy Creek Tributary (WBID 2257).
  • West of the St. Johns River Downtown
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform, Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 5.34 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.18.2. Data sources

Result data was downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in McCoy Creek WBID 2257 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.19.

2.7.18.3. Discussion

Water quality data for McCoy Creek are shown in Table 2.19. The fecal coliform level, averaged over all the stations in McCoy Creek, was historically above the WQC of 400 colony-forming-units (CFU) per 100 mL. Thus, a TMDL for fecal coliform was published in 2009 (Rich-Zeisler and Kingon 2009). (Note: the data analysis in the TMDL is based on different criteria than that used in this report). Subsequently, a BMAP for McCoy Creek was legally adopted in 2010 (DEP 2010a). The last Annual Progress Report for this BMAP was published in 2016 and listed 20 active, ongoing projects underway by COJ, FDOT, and JEA and one completed project in 2016 (wet detention pond by COJ) to address the BMAP in the McCoy Creek watershed (DEP 2017c). Measurements from the past three years suggest that progress is being made.  Average fecal coliform concentrations remain above the WQC, although the average has decreased over the past three years. Roughly half of the fecal coliform measurements exceed the WQC. Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

Average dissolved oxygen (DO) levels are above the SSAC of 4.0 mg/L for DO in the mainstem and tributaries (DEP 2014b), and the average DO concentration increased in 2018 following a three-year period of decreases.

While ample data are available for dissolved oxygen, fecal coliform, and turbidity levels in McCoy Creek, limited data can be found in STORET for phosphorus and chlorophyll-a prior to 2018.  No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Lead
  • Zinc
  • Cadmium
  • Nickel
  • Copper
  • Silver

Historical water quality data for these parameters in McCoy Creek are available in previous versions of the River Report.

Table 2.19 Water quality data for McCoy Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)4.09
(8 of 24 samples)
4.03
(11 of 35 samples)
4.65
(7 of 54 samples)
Total Nitrogen (mg/L)<1.54Not available0.67
(0 of 5 samples)
3.23
(1 of 10 samples)
Total Phosphorus (mg/L)<0.12Not available0.08
(0 of 2 samples)
0.15
(6 of 14 samples)
Chlorophyll-a (µg/L)<20Not available5.55
(0 of 2 samples)
7.05
(1 of 15 samples)
Fecal Coliform (CFU/100 mL)<4001800
(18 of 24 samples)
1100
(17 of 33 samples)
890
(32 of 52 samples)
Turbidity (NTU)<2910.81
(1 of 24 samples)
6.67
(0 of 35 samples)
5.22
(0 of 47 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.19. Mill Creek

2.7.19.1. About Mill Creek

Figure 2.51
Figure 2.52 The Mill Creek Tributary (WBID 2460).
  • East of the St. Johns River feeding into Sixmile Creek
  • Primary Land Use: Wetlands/forest
  • Current TMDL reports: Fecal Coliform, DO/Nutrient, Mercury
  • Verified Impaired 2016 (final): Iron (high)
  • WBID Area: 11.6 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.19.2. Data sources

Result data was downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Mill Creek WBID 2460 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.20.

2.7.19.3. Discussion

Water quality data for Mill Creek are shown in Table 2.20. Historically, the fecal coliform level, averaged over all the stations in Mill Creek, was above the WQC of 400 colony-forming-units (CFU) per 100 mL. Thus, a TMDL for fecal coliform was published in 2009 (Rhew 2009c). (Note: the data analyses in the TMDL are based on different criteria than those used in this report). Limited sampling in 2018 show fecal coliform concentrations below the WQC.

In addition, Mill Creek has been identified as impaired for dissolved oxygen and associated nutrients and a TMDL addressing this was published in 2010 (Magley 2010). Limited measurements in 2017 and 2018 indicate elevated total phosphorus concentrations. Iron has been added in the recent revised verified impaired list (DEP 2016j) for Mill Creek and is potentially a natural condition, common in Florida blackwater streams such as this.

Water quality data for Mill Creek are extremely limited in WIN and STORET.  Only three measurements were reported in 2017 and five measurements reported in 2018.  No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Lead
  • Zinc
  • Cadmium
  • Nickel
  • Copper
  • Silver

Historical water quality data for these parameters in Mill Creek are available in previous versions of the River Report.

Table 2.20 Water quality data for Mill Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0) FWNot available1.45
(0 of 2 samples)
6.56
(0 of 5 samples)
Total Nitrogen (mg/L)<1.54Not available1.51
(2 of 3 samples)
1.37
(1 of 5 samples)
Total Phosphorus (mg/L)<0.12Not available0.18
(2 of 2 samples)
0.24
(4 of 5 samples)
Chlorophyll-a (µg/L)<20 FWNot available1.45
(0 of 2 samples)
9.62
(1 of 5 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available140
(0 of 5 samples)
Turbidity (NTU)<29Not available4.40
(0 of 2 samples)
3.58
(0 of 5 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.20. Moncrief Creek

2.7.20.1. About Moncrief Creek

Figure 2.52
Figure 2.53 The Moncrief Creek Tributary (WBID 2228).
  • North of downtown Jacksonville
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal/Total Coliform with BMAP (2010), Mercury
  • Verified Impaired 2016 (final): Copper (2228A med), Iron (2228A med), Nutrients (Chlorophyll-a 228A med)
  • WBID Area: 5.9 sq. mi.
  • Beneficial Use: Class III F (Recreational – Marine)

2.7.20.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Moncrief Creek WBID 2228 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.21.

2.7.20.3. Discussion

Water quality data for Moncrief Creek are shown in Table 2.21. Historical average phosphorus levels were higher than the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k), and the average phosphorus levels have remained slightly above the WQC over the past three years. Dissolved oxygen concentrations were within acceptable limits.  Average chlorophyll-a concentrations were higher in 2017 and 2018.

A TMDL report for fecal coliform was published for Moncrief Creek in 2006 (Wainwright 2006b). (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Subsequently, a BMAP for Moncrief Creek (DEP 2010a) was released in August 2010. It describes sources of fecal coliform in the watershed, and completed and ongoing activities conducted by state and local agencies that are anticipated to reduce fecal coliform loading in the tributary. Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

In the 2016 Annual Progress Report, 59% of Moncrief Creek fecal coliform measurements over a 7.5 year period ending June 30, 2016 exceeded the water quality criterion (400 CFU/100 mL) (DEP 2017c). While Moncrief Creek remains impaired for fecal coliform, the size of the exceedances has decreased since implementation of the BMAP; the median exceedance has decreased from 2,600 CFU/100 mL in the TMDL report to 1,300 CFU/100 mL in the first phase of the BMAP (2010-2014). (DEP 2016b).  Fecal coliform measurements from the past three years show improvements in the average fecal coliform concentration as well as in the frequency of measurements that exceed the fecal coliform WQC.  Average fecal coliform concentrations continued to decrease from 2016 to 2018, as did the percentage of measurements that exceeded the WQC. There were 28 projects either planned or currently underway in 2016 by COJ, JEA, and FDOT to address the BMAP in the Moncrief Creek watershed (DEP 2017c).

Moncrief Creek has been identified as impaired for copper and iron (DEP 2014e), but it has been delisted for lead (DEP 2016h). It was identified as being impaired for mercury, based on elevated levels of mercury in fish tissue; however, this is being delisted (DEP 2015a) as it has been addressed by the statewide mercury TMDL (DEP 2013c).  Concentrations of the heavy metals presented in Table 2.21 all decreased in 2018, while these same metal concentrations increased in some of the other tributaries.

COJ has chosen Moncrief Creek as a focus watershed to monitor progress in the reduction of pollution from stormwater flows.  Stormwater is the main source of the headwaters of Moncrief Creek, and there were 22 stormwater treatment ponds in the Moncrief Creek watershed in 2017.  COJ plans to sample Moncrief Creek quarterly with respect to its effectiveness in stormwater treatment pollution reduction (COJ 2017).

Historical water quality data for Moncrief Creek are available in previous versions of the River Report.

Table 2.21 Water quality data for Moncrief Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (SW)201620172018
Dissolved Oxygen (mg/L)≥4.04.70
(15 of 36 samples)
5.33
(7 of 27 samples)
7.52
(2 of 44 samples)
Total Nitrogen (mg/L)<1.540.75
(0 of 3 samples)
0.74
(0 of 3 samples)
0.77
(1 of 30 samples)
Total Phosphorus (mg/L)<0.120.13
(4 of 6 samples)
0.14
(5 of 10 samples)
0.13
(7 of 45 samples)
Chlorophyll-a (µg/L)<5.47.02
(2 of 4 samples)
10.76
(3 of 7 samples)
10.45
(20 of 47 samples)
Arsenic (µg/L)≤5011.55
(0 of 4 samples)
7.31
(0 of 7 samples)
1.55
(0 of 13 samples)
Cadmium (µg/L)≤8.80.22
(0 of 4 samples)
0.09
(0 of 7 samples)
0.01
(0 of 13 samples)
Copper (µg/L)≤3.72.90
(1 of 4 samples)
4.01
(2 of 7 samples)
0.84
(0 of 13 samples)
Lead (µg/L)≤8.51.27
(0 of 4 samples)
2.18
(0 of 7 samples)
0.38
(0 of 13 samples)
Nickel (µg/L)≤8.30.90
(0 of 4 samples)
0.87
(0 of 7 samples)
0.67
(0 of 13 samples)
Silver (µg/L)≤0.92*0.03
(0 of 4 samples)
0.02
(0 of 7 samples)
0.01
(0 of 13 samples)
Zinc (µg/L)≤8610.92
(0 of 4 samples)
10.30
(0 of 7 samples)
7.12
(0 of 13 samples)
Fecal Coliform (CFU/100 mL)<4001900
(18 of 32 samples)
810
(10 of 21 samples)
620
(13 of 47 samples)
Turbidity (NTU)<295.57
(0 of 4 samples)
17.07
(1 of 7 samples)
9.36
(3 of 49 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.21. Open Creek

2.7.21.1. About Open Creek

Figure 2.54
Figure 2.55 Open Creek (WBID 2299A/B).
  • West of the Intracoastal Waterway
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform with BMAP (2009), Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 6.5 sq. mi.
  • Beneficial Use: Class III M & F (Marine – 2299A, Freshwater – 299B)

2.7.21.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Open Creek WBID 2299A (marine) and 2299B (freshwater) (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.22.

2.7.21.3. Discussion

Water quality data for Open Creek are shown in Table 2.22, but the number of measurements reported in STORET is very limited. Total phosphorus, dissolved oxygen, and turbidity were in the normal range in 2017. Open Creek has been identified as impaired for mercury (DEP 2016j) and is addressed in the statewide mercury TMDL already in place (DEP 2013c).

Fecal coliform levels, averaged over all the stations in Open Creek, remain around the WQC. However, there is some variation in the levels dependent on the location. A TMDL report (Wainwright and Hallas 2009b) was released in 2009 to address fecal coliform. (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Subsequently, a BMAP to address this issue was legally adopted (DEP 2009b). Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.  The last Annual Progress Report for this BMAP was published in 2016 and listed 18 active, ongoing projects underway by FDOT and JEA to address the BMAP in the Open Creek watershed (DEP 2017c).

No recent measurements were available in WIN or STORET between 2015 and 2017 for the following parameters:

  • Arsenic
  • Cadmium
  • Copper
  • Lead
  • Nickel
  • Silver
  • Zinc

Historical water quality data for these parameters in Open Creek are available in previous versions of the River Report.

Table 2.22 Water quality data for Open Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0) FW5.78
(0 of 9 samples)
5.69
(0 of 8 samples)
6.41
(0 of 6 samples)
≥4.0 SW6.00
(0 of 3 samples)
6.29
(0 of 4 samples)
5.79
(1 of 5 samples)
Total Nitrogen (mg/L)<1.54Not availableNot available0.79
(0 of 12 samples)
Total Phosphorus (mg/L)<0.12Not available0.05
(0 of 4 samples)
0.06
(0 of 10 samples)
Chlorophyll-a (µg/L)<20 FWNot availableNot available3.88
(0 of 6 samples)
<5.4 SWNot available3.20
(0 of 4 samples)
3.31
(0 of 4 samples)
Fecal Coliform (CFU/100 mL)<400650
(9 of 12 samples)
380
(2 of 7 samples)
410
(3 of 6 samples)
Turbidity (NTU)<29Not available2.70
(0 of 4 samples)
4.04
(0 of 10 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.22. Ortega River

2.7.22.1. About the Ortega River

Figure 2.56
Figure 2.57 The Ortega River Tributary (WBID 2213P1 and 2249A).
  • West of NAS Jacksonville
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform – 2213P1 DO/Nutrient   2213P1
  • Verified Impaired 2016 (final): None
  • WBID Area: 29.0 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.22.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Ortega River WBID 2213P1 and 2249A (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.23.

2.7.22.3. Discussion

Water quality data for the Ortega River are shown in Table 2.23. Average total phosphorus and dissolved oxygen concentrations were within acceptable limits. Average chlorophyll-a concentrations have remained lower than the WQC, but there was a sharp increase in the average concentration in 2017. Concentrations of metals in the Ortega River had generally decreased from 2015 to 2017, although the concentration of many of the metals shown in Table 2.23 rose in 2018.

No valid fecal coliform measurements were available in STORET between 2013 and 2017, but measurements were reported in WIN in 2018.  The fecal coliform level, averaged over all the sampling sites in the Ortega River, was historically below the WQC of 400 colony-forming-units per 100 mL. The TMDL reports for fecal coliform (Rhew 2009f) and DO/Nutrients (Magley 2009b) published in 2009 referred to WBID 2213P, of which WBID 2213P1 is a subset as a result of changes to the WBID boundaries.

Historical water quality data for the Ortega River are available in previous versions of the River Report.

Table 2.23 Water quality data for the Ortega River.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)4.51
(2 of 7 samples)
4.78
(3 of 7 samples)
6.68
(1 of 25 samples)
Total Nitrogen (mg/L)<1.540.67
(0 of 6 samples)
0.95
(0 of 5 samples)
1.03
(0 of 5 samples)
Total Phosphorus (mg/L)<0.120.05
(0 of 11 samples)
0.09
(3 of 10 samples)
0.07
(1 of 18 samples)
Chlorophyll-a (µg/L)<200.57
(0 of 7 samples)
7.69
(1 of 7 samples)
6.88
(1 of 14 samples)
Arsenic (µg/L)≤500.65
(0 of 7 samples)
0.61
(0 of 3 samples)
2.75
(0 of 5 samples)
Cadmium (µg/L)≤0.30.03
(0 of 7 samples)
0.03
(0 of 3 samples)
0.13
(0 of 5 samples)
Copper (µg/L)≤9.31.37
(0 of 7 samples)
0.81
(0 of 3 samples)
2.75
(0 of 5 samples)
Lead (µg/L)≤3.20.46
(0 of 7 samples)
0.38
(0 of 3 samples)
0.50
(0 of 5 samples)
Nickel (µg/L)≤520.42
(0 of 7 samples)
0.34
(0 of 3 samples)
0.25
(0 of 5 samples)
Silver (µg/L)≤0.070.00
(0 of 7 samples)
0.00
(0 of 3 samples)
0.13
(2 of 5 samples)
Zinc (µg/L)≤1205.44
(0 of 7 samples)
4.04
(0 of 3 samples)
7.50
(0 of 5 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available360
(3 of 10 samples)
Turbidity (NTU)<291.45
(0 of 7 samples)
3.25
(1 of 7 samples)
4.56
(0 of 14 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.23. Peters Creek

2.7.23.1. About Peters Creek

Figure 2.57
Figure 2.58 The Peters Creek Tributary (WBID 2444).
  • Flows into Black Creek
  • Primary Land Use: Forest/agriculture
  • Current TMDL reports: Lead, Fecal Coliform, Mercury
  • Verified Impaired 2016 (final):None
  • WBID Area: 20.5 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.23.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in Peters Creek WBID 2444 (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.24.

2.7.23.3. Discussion

Water quality data for Peters Creek are shown in Table 2.24, but the small number of samples limits any conclusions that can be drawn. Average total phosphorus, dissolved oxygen and chlorophyll-a concentrations were within acceptable limits. Historical fecal coliform levels, averaged over all the sampling sites in the Peters Creek, were above the WQC of 400 colony-forming-units (CFU) per 100 mL. As a consequence, a TMDL report was published in 2009 to address this impairment (Rhew 2009b). However, the last fecal coliform measurements available in STORET prior to 2018 date back to 2007. The average fecal coliform concentration in 2018 was lower than the WQC.

Lead has been identified as impaired (high percentage of exceedances) in Peters Creek and a TMDL report was published in 2009 (Lewis and Mandrup-Poulsen 2009) to address this issue.  While no lead data were available in 2016 and 2017, measurements from 2018 are below the WQC with no exceedances reported.

Historical water quality data for Peters Creek are available in previous versions of the River Report.

Table 2.24 Water quality data for Peters Creek (2015-2017).

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)6.30
(0 of 1 sample)
7.34
(0 of 2 samples)
6.89
(0 of 10 samples)
Total Nitrogen (mg/L)<1.540.32
(0 of 1 sample)
0.31
(0 of 1 sample)
0.46
(0 of 9 samples)
Total Phosphorus (mg/L)<0.120.05
(0 of 1 sample)
0.04
(0 of 1 sample)
0.02
(0 of 9 samples)
Chlorophyll-a (µg/L)<200.55
(0 of 1 sample)
0.93
(0 of 1 sample)
0.30
(0 of 10 samples)
Arsenic (µg/L)≤50Not availableNot available0.2
(0 of 10 samples)
Cadmium (µg/L)≤0.3Not availableNot available0.01
(0 of 10 samples)
Copper (µg/L)≤9.3Not availableNot available0.28
(0 of 10 samples)
Lead (µg/L)≤3.2Not availableNot available0.28
(0 of 10 samples)
Nickel (µg/L)≤52Not availableNot available0.55
(0 of 10 samples)
Silver (µg/L)≤0.07Not availableNot available0.01
(0 of 10 samples)
Zinc (µg/L)≤120Not availableNot available2.50
(0 of 10 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available160
(1 of 10 samples)
Turbidity (NTU)<291.30
(0 of 1 sample)
1.30
(0 of 1 sample)
1.90
(0 of 10 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.24. Pottsburg Creek

2.7.24.1. About Pottsburg Creek

Figure 2.58
Figure 2.59 The Pottsburg Creek Tributary (WBID 2265B).
  • East of the St. Johns River at the Butler Blvd./I-95 interchange
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal coliform with BMAP (2010), Mercury
  • Verified Impaired 2016 (final): Iron (med)
  • WBID Area: 9.1 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.24.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Pottsburg Creek WBID 2265B, 2265C (freshwater), and 2265D (marine) (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.25.

2.7.24.3. Discussion

Water quality data for Pottsburg Creek are shown in Table 2.25, but only a handful of measurements are available in STORET for these parameters between 2015 and 2017. Average phosphorus levels were higher than the WQC in 2017 (DEP 2015c; DEP 2016e; DEP 2016k) and near the WQC in 2018.  The percentage of measurements exceeding the WQC dropped sharply in 2018. Historically, average dissolved oxygen and chlorophyll-a were within limits, although chlorophyll-a concentrations in the marine/estuarine regions of Pottsburg Creek exceeded the WQC in 2017 and 2018.

Average fecal coliform concentrations from 1999-2012 were well above the WQC, and fecal coliform levels in this residential tributary were identified as impaired in 2004. Consequently, a TMDL for fecal coliform was published (Rhew 2009d).  A BMAP for Pottsburg Creek (DEP 2010a) was legally adopted in August 2010. It describes sources of fecal coliform in the watershed, and completed and ongoing activities conducted by state and local agencies that are anticipated to reduce fecal coliform loading in the tributary. Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

Annual Progress Reports for this BMAP were published annually between 2011 and 2016, listing repairs, inspections, evaluations, and other improvements conducted by JEA, the Duval County Health Department, COJ, and FDOT. In the 2016 Annual Progress Report, 34% of Pottsburg Creek fecal coliform measurements over a 7.5 year period ending June 30, 2016 exceeded the water quality criterion (400 CFU/100 mL) (DEP 2017c). Pottsburg Creek remains impaired for fecal coliform, and the size of the exceedances has increased since implementation of the BMAP; the median exceedance increased from 800 CFU/100 mL in the TMDL report to 1,532 CFU/100 mL in the first phase of the BMAP (2010-2014) (DEP 2016b). No fecal coliform data were available in STORET between 2007 and 2017, but measurements from 2018 show decreases in fecal coliform levels compared to what was reported in the BMAP documents. As of 2016, there were 24 projects either planned or currently underway by COJ, JEA, and FDOT to address the BMAP in the Pottsburg Creek watershed (DEP 2017c).

Historical water quality data for Pottsburg Creek are available in previous versions of the River Report.

Table 2.25 Water quality data for Pottsburg Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0) FWNot availableNot available6.22
(0 of 14 samples)
≥4.0 SWNot availableNot available6.42
(4 of 19 samples)
Total Nitrogen (mg/L)<1.54Not available0.89
(0 of 5 samples)
0.84
(0 of 23 samples)
Total Phosphorus (mg/L)<0.12Not available0.15
(3 of 4 samples)
0.10
(1 of 24 samples)
Chlorophyll-a (µg/L)<20 FWNot availableNot available2.10
(0 of 1 sample)
<5.4 SWNot available9.75
(1 of 4 samples)
10.45
(11 of 15 samples)
Arsenic (µg/L)≤50Not availableNot available1.28
(0 of 21 samples)
Cadmium (µg/L)≤0.3 FWNot availableNot available0.01
(0 of 10 samples)
≤8.8 SWNot availableNot available0.01
(0 of 11 samples)
Copper (µg/L)≤9.3 FWNot availableNot available1.23
(0 of 10 samples)
≤3.7 SWNot availableNot available1.63
(0 of 11 samples)
Lead (µg/L)≤3.2 FWNot availableNot available0.21
(0 of 10 samples)
≤8.5 SWNot availableNot available1.25
(0 of 11 samples)
Nickel (µg/L)≤52 FWNot availableNot available1.11
(0 of 10 samples)
≤8.3 SWNot availableNot available0.62
(0 of 11 samples)
Silver (µg/L)≤0.07 FWNot availableNot available0.01
(0 of 10 samples)
≤0.92 SWNot availableNot available0.01
(0 of 11 samples)
Zinc (µg/L)≤120 FWNot availableNot available3.50
(0 of 10 samples)
≤86 SWNot availableNot available5.23
(0 of 11 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available200
(4 of 28 samples)
Turbidity (NTU)<29Not available3.45
(0 of 4 samples)
5.48
(0 of 24 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.25. Ribault River

2.7.25.1. About the Ribault River

Figure 2.59
Figure 2.60 The Ribault River Tributary (WBID 2224).
  • Northwest of downtown Jacksonville
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform, Mercury
  • Verified Impaired 2016 (final): Iron (med)
  • WBID Area: 9.7 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.25.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Ribault River WBID 2224 (DEP 2014c) shown above. No water quality data for the selected parameters discussed below for the Ribault River were available in STORET for 2015-2017.

2.7.25.3. Discussion

Water quality data for the Ribault River are presented in Table 2.26. No water quality data were available in STORET for the Ribault River between 2012 and 2017, and the last measurements of metals date back to 2007.  The average total phosphorus concentration is near the WQC.  The Ribault River is located in a highly residential area and has historically been a contributor to elevated levels of phosphorus found in the tributary. High levels of chlorophyll-a were measured previously and again in 2018 (although the average did not exceed the WQC), but Ribault River has not been designated impaired (DEP 2016h). The Ribault River has been added to the verified impaired list for iron (DEP 2016j).

Historical fecal coliform levels, averaged over all the sampling sites in the Ribault River, were elevated. A TMDL report for fecal coliform in the Ribault River was published in 2006 (Wainwright 2006a), and a BMAP is under development. (Note: the data analyses in the TMDL are based on different criteria than that used in this report).  In 2014, the City of Jacksonville implemented a monitoring program for the Ribault River as part of a bacteria pollution control plan in concert with efforts related to stormwater management (COJ 2017).  Fecal coliform measurements from 2018 show elevated levels, with over half of the measurements exceeding the WQC.

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Cadmium
  • Copper
  • Lead
  • Nickel
  • Silver
  • Zinc

Historical water quality data for these parameters in the Ribault River are available in previous versions of the River Report.

Table 2.26 Water quality data for the Ribault River.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)Not availableNot available6.29
(0 of 71 samples)
Total Nitrogen (mg/L)<1.54Not available0.81
(0 of 5 samples)
0.87
(0 of 11 samples)
Total Phosphorus (mg/L)<0.12Not availableNot available0.11
(4 of 12 samples)
Chlorophyll-a (µg/L)<20Not availableNot available18.65
(4 of 11 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available2100
(19 of 35 samples)
Turbidity (NTU)<29Not availableNot available8.89
(0 of 12 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.27. Sixmile Creek

2.7.27.1. About the Sixmile Creek

Figure 2.61
Figure 2.62 The Sixmile Creek Tributary (WBID 2411).
  • East of the St. Johns River in St. Johns County
  • Primary Land Use: Forested/Wetland
  • Current TMDL reports: Fecal Coliform, Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 59.5 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.27.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Ribault River WBID 2224 (DEP 2014c) shown above. No water quality data for the selected parameters discussed below for the Ribault River were available in STORET for 2015-2017.

2.7.27.3. Discussion

Water quality data for the Ribault River are presented in Table 2.26. No water quality data were available in STORET for the Ribault River between 2012 and 2017, and the last measurements of metals date back to 2007.  The average total phosphorus concentration is near the WQC.  The Ribault River is located in a highly residential area and has historically been a contributor to elevated levels of phosphorus found in the tributary. High levels of chlorophyll-a were measured previously and again in 2018 (although the average did not exceed the WQC), but Ribault River has not been designated impaired (DEP 2016h). The Ribault River has been added to the verified impaired list for iron (DEP 2016j).

Historical fecal coliform levels, averaged over all the sampling sites in the Ribault River, were elevated. A TMDL report for fecal coliform in the Ribault River was published in 2006 (Wainwright 2006a), and a BMAP is under development. (Note: the data analyses in the TMDL are based on different criteria than that used in this report).  In 2014, the City of Jacksonville implemented a monitoring program for the Ribault River as part of a bacteria pollution control plan in concert with efforts related to stormwater management (COJ 2017).  Fecal coliform measurements from 2018 show elevated levels, with over half of the measurements exceeding the WQC.

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Cadmium
  • Copper
  • Lead
  • Nickel
  • Silver
  • Zinc

Historical water quality data for these parameters in Sixmile Creek are available in previous versions of the River Report.

2.7.26. Rice Creek

2.7.26.1. About the Rice Creek

Figure 2.60
Figure 2.61 The Rice Creek Tributary (WBID 2567A/B).
  • West of Palatka
  • Primary Land Use: Forested/Wetland
  • Current TMDL reports: None
  • Verified Impaired 2016 (final): None
  • WBID Area: 31.1 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.26.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Rice Creek WBID 2567A/B (DEP 2014c) shown above. The filtered dataset was used to generate Table 2.27.

2.7.26.3. Discussion

Water quality data for Rice Creek are shown in Table 2.27, although the frequency of sampling was sharply lower in 2017. Rice Creek is predominantly surrounded by wetlands, forests including The Rice Creek Wildlife Management Area and a pulp mill (Georgia-Pacific). Dissolved oxygen, total phosphorus, chlorophyll-a, and turbidity levels are within normal levels; chlorophyll-a concentrations in Rice Creek have fallen by more than half over the past three years. Levels of metals, including copper and nickel, had decreased between 2015 and 2017, although some of these concentrations rose in 2018.  Rice Creek was identified as being impaired for dioxin (DEP 2014e), but it is no longer listed as such.

Historical water quality data for Rice Creek are available in previous versions of the River Report.

Table 2.27 Water quality data for Rice Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)5.38
(4 of 87 samples)
5.54
(0 of 30 samples)
4.98
(10 of 77 samples)
Total Nitrogen (mg/L)<1.541.00
(1 of 28 samples)
0.89
(2 of 12 samples)
0.96
(0 of 24 samples)
Total Phosphorus (mg/L)<0.120.05
(0 of 46 samples)
0.07
(1 of 16 samples)
0.08
(4 of 40 samples)
Chlorophyll-a (µg/L)<207.50
(5 of 30 samples)
4.23
(0 of 11 samples)
2.69
(1 of 30 samples)
Arsenic (µg/L)≤500.68
(0 of 18 samples)
0.58
(0 of 6 samples)
1.39
(0 of 22 samples)
Cadmium (µg/L)≤0.30.00
(0 of 18 samples)
0.01
(0 of 6 samples)
0.04
(0 of 22 samples)
Copper (µg/L)≤9.30.99
(0 of 18 samples)
0.86
(0 of 6 samples)
1.21
(0 of 22 samples)
Lead (µg/L)≤3.20.26
(0 of 18 samples)
0.29
(0 of 6 samples)
0.37
(0 of 22 samples)
Nickel (µg/L)≤520.60
(0 of 18 samples)
0.49
(0 of 6 samples)
1.54
(0 of 22 samples)
Silver (µg/L)≤0.070.00
(0 of 18 samples)
0.02
(1 of 6 samples)
0.01
(0 of 22 samples)
Zinc (µg/L)≤1202.12
(0 of 18 samples)
2.55
(0 of 6 samples)
5.91
(0 of 22 samples)
Fecal coliform (CFU / 100 mL)<400Not availableNot available190
(0 of 1 sample)
Turbidity (NTU)<292.79
(0 of 29 samples)
3.29
(0 of 11 samples)
4.64
(0 of 29 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.28. Strawberry Creek

2.7.28.1. About the Strawberry Creek

Figure 2.62
Figure 2.63 The Strawberry Creek Tributary (WBID 2239).
  • Flows into the Arlington River
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal Coliform, Mercury
  • Verified Impaired 2016 (final): None
  • WBID Area: 4.6 sq. mi.
  • Beneficial Use: Class III F (Recreational – Freshwater)

2.7.28.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Strawberry Creek WBID 2239 (DEP 2014c) shown above. No water quality data for the selected parameters discussed below for Strawberry Creek were available in STORET for 2015-2017.

2.7.28.3. Discussion

Water quality data for Strawberry Creek are presented in Table 2.28. No water quality data were available in WIN or STORET for metals since 2007. Historical fecal coliform levels, averaged over all the sampling sites in Strawberry Creek, were above the WQC of 400 colony-forming-units per 100 mL. Thus, a TMDL report for fecal coliform in Strawberry Creek was published in 2009 (Rhew 2009e). (Note: the data analyses in the TMDL are based on different criteria than that used in this report). No new fecal coliform measurements were reported in STORET between 2012 and 2017, but measurements in 2018 indicate continued elevated fecal coliform levels.  In 2018, the City of Jacksonville planned to implement a monitoring program for Strawberry Creek as part of a bacteria pollution control plan in concert with efforts related to stormwater management (COJ 2017).

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Cadmium
  • Copper
  • Lead
  • Nickel
  • Silver
  • Zinc

Historical water quality data for these parameters in Strawberry Creek are available in previous versions of the River Report.

Table 2.28 Water quality data for Strawberry Creek.

 Water QualityAverage and Number of Samples º
ParameterCriteria (FW)201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)Not availableNot available6.85
(1 of 13 samples)
Total Nitrogen (mg/L)<1.54Not available0.93
(0 of 2 samples)
1.07
(0 of 8 samples)
Total Phosphorus (mg/L)<0.12Not availableNot available0.07
(0 of 11 samples)
Chlorophyll-a (µg/L)<20Not availableNot available1.56
(0 of 11 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available1200
(10 of 12 samples)
Turbidity (NTU)<29Not availableNot available2.61
(0 of 9 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.29. Trout River

2.7.29.1. About the Trout River

Figure 2.63
Figure 2.64 The Trout River Tributary (WBIDs 2203/2203A/2223).
  • North of downtown Jacksonville
  • Primary Land Use: Residential/Wetland Current TMDL reports: Fecal coliform with BMAP (2010) DO/Nutrients (2203B), Mercury
  • Verified Impaired 2016 (final): Chlorophyll-a (2203A, med)
  • Beneficial Use: Class III M/F (Marine 2203A, Freshwater 2203/2233)

2.7.29.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Trout River WBIDs 2203/2203A/2203B/2223 (DEP 2014c) shown above. The filtered dataset was used to Table 2.29.

2.7.29.3. Discussion

Water quality data for the Trout River are shown in Table 2.29. Historically, overall (all WBIDs) average phosphorus levels were higher than the recently updated WQC (DEP 2015c; DEP 2016e; DEP 2016k).  No phosphorus data were available in STORET from 2014 to 2016, and the average phosphorus concentration in both 2017 and 2018 were at or near the WQC, with a number of measurements in 2018 exceeding the WQC.  Dissolved oxygen concentrations were within acceptable limits and improved in 2018. Nutrient levels have been found to be, on average, higher than the WQC for WBID 2203 and a TMDL report to address this issue was published in 2009 (Magley 2009a). The Trout River has been listed as impaired for chlorophyll-a (DEP 2016j).

The fecal coliform level, averaged over all the stations in the Trout River (Table 2.29), has been higher than the WQC of 400 colony-forming-units (CFU) per 100 mL.  A TMDL for fecal coliform was published in 2009 (Wainwright and Hallas 2009c) for WBIDs 2203 and 2203A in the Trout River. (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Subsequently, a BMAP for the Trout River (DEP 2010a) was legally adopted in August 2010. It describes sources of fecal coliform in the watershed, and completed and ongoing activities conducted by state and local agencies that are anticipated to reduce fecal coliform loading in the tributary. The BMAP describes two WBIDS: the middle Trout River (2203), and the lower Trout River (2203A). Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.

Annual Progress Reports for this BMAP were published annually between 2011 and 2016, listing repairs, inspections, evaluations, and other improvements conducted by JEA, the Duval County Health Department, COJ, and FDOT. In the 2016 Annual Progress Report, 32% of lower Trout River fecal coliform measurements over a 7.5 year period ending June 30, 2016 exceeded the water quality criterion (400 CFU/100 mL) (DEP 2017c). While the lower Trout River remains impaired for fecal coliform, the size of the exceedances has decreased since implementation of the BMAP; the median exceedance decreased from 1,000 CFU/100 mL in the TMDL report to 721 CFU/100 mL in the first phase of the BMAP (2010-2014) (DEP 2016b). However, fecal coliform concentrations over the past three years have remained high (although limited sampling was performed in 2017). As of 2016, there were 42 projects either planned or currently underway by COJ, JEA, and FDOT to address the BMAP in the Trout River watershed (DEP 2017c).

The Trout River (lower reach) was identified as being impaired for mercury based on elevated levels of mercury in fish tissue; however, this is being delisted (DEP 2016h), as it has been addressed by the statewide mercury TMDL (DEP 2013c). Chlorophyll-a has been added to the verified impaired list (DEP 2016j), although reported measurements in 2018 were all below the WQC.

Historical water quality data for the Trout River are available in previous versions of the River Report.

Table 2.29 Water quality data for the Trout River.

 Water QualityAverage and Number of Samples º
ParameterCriteria201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0) FW4.96
(4 of 15 samples)
4.67
(2 of 7 samples)
7.04
(0 of 25 samples)
≥4.0 SW4.58
(4 of 12 samples)
4.83
(4 of 12 samples)
6.67
(2 of 33 samples)
Total Nitrogen (mg/L)<1.54Not available1.06
(0 of 10 samples)
0.91
(0 of 35 samples)
Total Phosphorus (mg/L)<0.12Not available0.12
(2 of 6 samples)
0.11
(12 of 38 samples)
Chlorophyll-a (µg/L)<20 FWNot availableNot available0.98
(0 of 24 samples)
<5.4 SWNot available7.45
(2 of 6 samples)
4.73
(0 of 13 samples)
Arsenic (µg/L)≤50Not availableNot available0.63
(0 of 15 samples)
Cadmium (µg/L)≤0.3 FWNot availableNot available0.01
(0 of 15 samples)
Copper (µg/L)≤9.3 FWNot availableNot available0.75
(0 of 15 samples)
Lead (µg/L)≤3.2 FWNot availableNot available0.80
(0 of 15 samples)
Nickel (µg/L)≤52 FWNot availableNot available0.59
(0 of 15 samples)
Silver (µg/L)≤0.07 FWNot availableNot available0.01
(0 of 15 samples)
Zinc (µg/L)≤120 FWNot availableNot available11.83
(0 of 15 samples)
Fecal Coliform (CFU/100 mL)<400330
(2 of 12 samples)
1500
(2 of 3 samples)
820
(10 of 34 samples)
Turbidity (NTU)<29Not available5.90
(0 of 6 samples)
4.72
(0 of 37 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.

2.7.30. Wills Branch

2.7.30.1.  About the Wills Branch

Figure 2.64
Figure 2.65 The Wills Branch Tributary (WBIDs 2282).
  • West of downtown Jacksonville Flows into the Cedar River
  • Primary Land Use: Residential
  • Current TMDL reports: Fecal and Total Coliform with BMAP (2010), Mercury
  • Verified Impaired 2016 (final): None
  • Beneficial Use: Class III  F (Recreational – Freshwater)

2.7.30.2. Data sources

Result data were downloaded from the FL STORET and WIN websites (DEP 2010f; DEP 2018h) and filtered based on the stations (DEP 2010g) in the Wills Branch WBID 2282 (DEP 2014c) shown above. No water quality data for the selected parameters discussed below for Wills Branch were available in STORET for 2015-2017.

2.7.30.3. Discussion

Water quality data for Wills Branch are presented in Table 2.30.  Historically, average total phosphorus, dissolved oxygen and chlorophyll-a concentrations were within acceptable limits, and reported measurements from 2018 continue this trend.

The fecal coliform level, averaged over all the stations in Wills Branch, were historically above the WQC of 400 colony-forming-units (CFU) per 100 mL. As a result, a TMDL for total and fecal coliform was published in 2006 (Wainwright 2006c) for Wills Branch. (Note: the data analyses in the TMDL are based on different criteria than that used in this report). Subsequently, a BMAP for Wills Branch was legally adopted in 2010 (DEP 2010a). Additional information about fecal coliform in the tributaries can be found in Section 2.6 and Table 2.2.  The last Annual Progress Report for this BMAP was published in 2016 and listed 20 active, ongoing projects underway by FDOT and JEA to address the BMAP in the Wills Branch watershed (DEP 2017c); two pump station projects were completed by JEA in 2016.  No fecal coliform measurements were reported in STORET from 2013 to 2017, and measurements from 2018 showed elevated fecal coliform levels.

No recent measurements were available in WIN or STORET between 2016 and 2018 for the following parameters:

  • Arsenic
  • Cadmium
  • Copper
  • Lead
  • Nickel
  • Silver
  • Zinc

Historical water quality data for these parameters in Wills Branch are available in previous versions of the River Report.

Table 2.30 Water quality data for Wills Branch.

 Water QualityAverage and Number of Samples º
ParameterCriteria201620172018
Dissolved Oxygen (mg/L)≥34% sat. (≥3.0)Not availableNot available7.24
(0 of 18 samples)
Total Nitrogen (mg/L)<1.54Not availableNot available0.96
(0 of 8 samples)
Total Phosphorus (mg/L)<0.12Not availableNot available0.06
(0 of 9 samples)
Chlorophyll-a (µg/L)<20Not availableNot available1.41
(0 of 9 samples)
Fecal Coliform (CFU/100 mL)<400Not availableNot available1100
(17 of 18 samples)
Turbidity (NTU)<29Not availableNot available3.61
(0 of 9 samples)
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
° = Number of samples below Water Quality Criteria for Dissolved Oxygen; Number of samples above Water Quality Criteria for all other parameters.
FW = freshwater; SW = saltwater (marine). Values denoted with (*) indicate a proposed criterion, which has not yet been adopted.
Values denoted with (‡) are reference values based on EPA criteria (EPA 2010b), but the water body is not regulated by this standard.