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.