2.7.5. Broward River About the Broward River

Figure 2.29
Figure 2.30 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) 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 2014d) shown above. The aggregate (both WBIDs) filtered dataset was used to generate Table 2.6. Discussion

Water quality data for the Broward River are shown in Table 2.6. Due to recent split of WBID 2191 into a marine (2191B) and a freshwater (2191A) WBIDs the data is an aggregate of the and thus both FW and SW WQC’s are included in the table. Average phosphorus levels were higher than the 2010 updated WQC (DEP 2015d; DEP 2016e; DEP 2016k). The maximum fecal coliform level at times exceeded the WQC of 2.6, which is the logarithm of the state maximum of 400 colony-forming-units per 100 mL (Table 2.6), and as a result WBID 2191B is considered impaired for fecal coliform. The Broward 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 2013e).

Table 2.6 Water quality data for Broward River.
ParameterWater Quality Criteria (SW)LowAverageHighSamplesSampling Period
Dissolved Oxygen (mg/L)34% sat. FW ‡4.0 SW0.35.0916.11891999 - 2012
Total Nitrogen (mg/L)<1.54‡0.380.971.63341999 - 2008
Total Phosphorus (mg/L)<0.12‡ - 2008
Chlorophyll-a (μg/L)<20‡ FW <11‡ SW0.4310.2252242000 - 2007
Arsenic (μg/L)‡50 FW ‡50 SW0.521.542.6271999 - 2007
Cadmium (μg/L)‡0.3 FW ‡8.8 SW0.010.635281999 - 2007
Copper (μg/L)‡9.3 FW ‡3.7 SW0.381.655281999 - 2007
Lead (μg/L)‡3.2 FW ‡8.5 SW0.13.3420271999 - 2008
Nickel (μg/L)‡52 FW ‡8.3 SW0.381.9510281999 - 2007
Silver‡0.07 FW ‡0.92* SW0.010.615271999 - 2007
Zinc (μg/L)‡120 FW ‡86 SW2.57.3320281999 - 2007
Fecal Coliform (log #/100 mL)<2.6‡0.952.44.31611999 - 2012
Turbidity (NTU)<291.89.427461999 - 2007
Note: Hardness-dependent freshwater criteria for cadmium, copper, lead, nickel, and zinc were generated based on a hardness concentration of 100 mg/L.
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.