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)
  • 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 website (DEP 2010e) and filtered based on the stations (DEP 2010f) 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

Historically, average total phosphorus, dissolved oxygen and chlorophyll-a concentrations were within acceptable limits. 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 2016 Annual Progress Report for this BMAP 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.  However, no recent fecal coliform data are available as the last fecal coliform measurements in STORET date back to 2012.

No recent measurements were available in STORET between 2015 and 2017 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 Wills Branch are available in previous versions of the River Report.