Flat Branch- Historical Data

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Ohio EPA has sampled Flat Branch subwatershed 11 times at a total of 5 sites since 1979.  Flat Branch is designated Modified Warm Water Habitat(MWH)a    Additional testing was done on Flat Branch during summer 2006.  It will be listed when the information becomes available.

Site #  Stream  River Mile  Date Sampled  Type 

Drainage Area (mi2) 

 IBIb (Fish)  Mod. Iwbc  ICId (Fish)  QHEIf 
1 Flat Branch  3.2 2001 Bugs  3.3 -  -  Ge  - 
1 Flat Branch  3.2 7/9/2001 Fish and Bugs  3.3 26 3.8 G  25.5
                   
2 Flat Branch  2.2 2001 Bugs  9.3 -  -  MG  - 
 
3 Trib. to Flat Branch (RM 1.50)  0.1 2001 Bugs  3.5 -  -  F  - 
 
4 Flat Branch  1.0/0.8  9/17/1997 Fish and Bugs  13.8 23 5.1 38 - 
4 Flat Branch  1.0/0.8  9/5/2001 Fish and Bugs  13.8 28 3.7 50 36.5
4 Flat Branch  0.9/0.8  7/5/1988 Fish and Bugs  13.9 28 5.3 F  28.5
4 Flat Branch  0.9 7/13/1989 Fish  14 32 4.9 -  - 
4 Flat Branch  0.8 6/18/1979 Fish  14 34 6.4 -  28.5
4 Flat Branch  0.6 5/16/1983 Fish  14 28 4.1 -  - 
 
-  Flat Branch  0.1 8/10/1993 Fish  14 40 6.7 -  60

a. Modified Warmwater Habitat(MWH) Criteria: IBI=24, Mod. Iwb=5.8 and  ICI=22

b. IBI=Index of Biotic Integrity

c. Mod. Iwb= Modified Index of Well-being

d. Narrative evaluation is used in lieu of Invertebrate Community Index(ICI) for qualitative samples:

    G= Good, MG=Marginally Good (a non-significant departure from WWH) and F=Fair

e. ICI ranges for narrative evaluations: Good(36-40), MG(32-34) and Fair(14-30)

f. QHEI=Qualitative Habitat Evaluation Index

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Last updated: May 14, 2008.