Middle St. Johns - Florida Department of Environmental Protection

Water Quality Assessment Report: Middle St. Johns 321
WBID
2893D
[Called
2893D
(&
2893C)
on 1998
303(d)
list]
2893D
[Called
2893D
(&
2893C)
on 1998
303(d)
list]
2893D
[Called
2893D
(&
2893C)
on 1998
303(d)
list]
2893D
[Called
2893D
(&
2893C)
on 1998
303(d)
list]
Waterbody
Segment Name
Waterbody
Type
Waterbody
Class
1998 303(d)
Parameters
of Concern
Parameters
Identified Using
the IWR
Lake Monroe Lake 3F Mercury (in fish
tissue)
Proposed
Status
Not
Impaired
Lake Monroe Lake 3F Nickel Not
Impaired
Lake Monroe Lake 3F Nutrients Nutrients (TSI) Verified
List
Lake Monroe Lake 3F Selenium Selenium Not
Impaired
Comments 3
Integrated Priority Projected
ment 2 ment 2
Report
Category 1
for
TMDL
Year for
TMDL
(# Exceedances/ # Samples)
PP= Planning Period VP= Verified
Develop-
Develop-
Period
2 Mercury (in fish tissue) is not
impaired under IWR assessment,
but need to confirm how data were
assessed.
2
5 Low 2008 Co-limitation of nitrogen and
phosphorus based on a TN/TP
median of 20 (389 values) in the PP
and a median of 20 (320 values) in
the VP. PP - 3 TSI annual means
exceeded 60 (1998-2000). VP - 4
TSI annual means exceeded 60
(1998-2001). 327 TN values,
median 1.51 mg/L. 321 TP values,
median 0.08 mg/L.
2 Delist. PP - 7/22 values exceed
criterion, range 0.001 - 113 ug/L.
VP - 3/23 values exceed criterion,
range 0 - 46.3 ug/L.