Deer Creek – Sugar Creek Steering Committee Meeting IX – September 25, 2013
Draft Goals
I
Problem:
Potential Causes:
L-THIA Modeling
Total Nitrogen
Phosphorous
Nutrient concentrations exceed target values set by this project.
Area streams have nutrient levels exceeding the suggested target
levels of 1.0 mg/L for nitrate-nitrogen and 0.08 mg/L of total
phosphorus.
Modeled Current Load Target Load
Reduction Load
Reduction %
696,170 lb/yr
166,685 lb/yr
529,483 lb/yr
76%
203,960 lb/yr
50,005 lb/yr
153,954 lb/yr
76%
Ultimate Goal (Draft):
Reduce nitrate-nitrogen inputs from 696,170 pounds per year to
166,685 pounds per year (76% reduction) and reduce phosphorous
inputs from 203,960 pounds per year to 50,005 pounds per year
(76% reduction) in the Deer Creek-Sugar Creek Watershed by 2064.
II
Problem:
Area streams are cloudy and turbid.
Potential Causes:
Turbidities exceed target standards of 15.0 mg/L.
L-THIA Modeling Modeled Current Load Target Load
Reduction Load
Total Suspended 16,786,644 lb/yr
2,500,281 lb/yr
14,286,362 lb/yr
Solids
Reduction %
85%
Ultimate Goal (Draft):
Reduce soil erosion and sediment inputs to waterways in the Deer
Creek-Sugar Creek watershed by 14,286,362 pounds per year (85%
reduction) by 2064.
Problem:
Potential Causes:
Targets:
Habitat is limited within watershed streams.
Impaired biotic communities occur within the watershed.
Qualitative Habitat Evaluation Index > 51, according to IDEM
Macroinvertebrate Index of Biotic Integrity >36, according to IDEM
Index of Biotic Integrity >36, according to IDEM
Restore natural aquatic habitat in the Deer Creek-Sugar Creek
watershed so that streams meet their aquatic life use designation
by 2064.
III
Ultimate Goal (Draft):
IV
Problem:
Potential Causes:
Target:
Ultimate Goal (Draft):
Area streams are listed by IDEM as impaired for recreational contact.
E. coli concentrations exceed target values and the state standard.
Maximum of 235 CFU/100 mL in a single sample, according to IAC.
Reduce E. coli concentrations so that they do not exceed the state
standard by 2064.
Deer Creek – Sugar Creek Steering Committee Meeting IX – September 25, 2013
V
Problem:
Potential Causes:
Ultimate Goal (Draft):
A unified education plan is not currently in place, and individuals lack
knowledge of about what they can do to improve the watershed.
Individuals lack knowledge of their impact on the watershed, and a
targeted implementation program is lacking
Increase public awareness and knowledge about the waterways in
the Deer Creek-Sugar Creek watershed and what individuals and
communities can do to improve the quality of those waterways by
2064.