2.7.2. Arlington River  About the Arlington River

Figure 2.24
Figure 2.25 The Arlington River Tributary (WBID 2265A).
  • East of downtown Jacksonville
  • Primary Land Use: Residential
  • Current TMDL reports:
    Nutrients, Mercury
  • Verified Impaired 2016 (final):
  • WBID Area: 1.6 sq. mi.
  • Beneficial Use: Class III M (Recreational – Marine) Data sources

Result data were downloaded from the FL STORET website (DEP 2010e) and filtered based on the stations (DEP 2010f) in the Arlington River WBID 2265A (DEP 2014d) shown above. The filtered dataset was used to generate Table 2.3. Discussion

Water quality data for the Arlington River are shown in Table 2.3. Average phosphorus levels were higher than the recently updated WQC (DEP 2015d; 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 2013e). The Arlington River is being delisted for chlorophyll-a as it has been addressed by the Nutrients TMDL (DEP 2016h).

Table 2.3 Water quality data for the Arlington River.
ParameterWater Quality Criteria (SW)ConcentrationSamplesSampling Period
Dissolved Oxygen (mg/L)≤ - 2008
Total Nitrogen (μg/L)<1.540.311.082.53651999 - 2008
Total Phosphorus (mg/L)< - 2008
Chlorophyll-a (μg/L)<1107.1444311999 - 2007
Arsenic (μg/L)≤500.751.742.7202007 - 2008
Cadmium (μg/L)≤ - 2008
Copper (μg/L)≤ - 2008
Lead (μg/L)≤ - 2008
Nickel (μg/L)≤8.30.310.672.36202007 - 2008
Silver (μg/L)≤0.92* - 2008
Zinc (μg/L)≤862.58.8923202007 - 2008
Fecal Coliform (log #/100 mL)< - 2007
Turbidity (NTU)<291.48.2834901999 - 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.