Category Archives: Council District 8

District Information

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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.

2.7.25. 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.

2.7.29. 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.