|
Unit
|
Geometric
Mean
|
90th Percentile
|
|
|
FC
|
EC
|
FC
|
EC
|
|
|
Recreation
Standard
|
1000
|
126a
|
336b
|
2000
|
298a
|
626b
|
|
|
Upper
Big Darby (Headwaters to downstream Sugar Run) [05060001
190] (FC n=167, EC n=139)
|
850.2
|
1131.9
|
1131.9
|
6901
|
8802
|
8802
|
|
|
Upper
Big Darby Creek RM 82.5-52.0 (mainstem only)
(FC n=52, EC n=43)
|
855.4
|
1282.1
|
1282.1
|
7844
|
12250
|
12250
|
|
|
Flat
Branch and tribs incl.Little Darby (Logan Co.)
(FC
n=30, EC n=24)
|
906.9
|
1475.8
|
1475.8
|
22000
|
30027
|
30027
|
|
|
Flat
Branch and tribs. (FC n=20, EC n=16)
|
1418.9
|
2810.1
|
2810.1
|
22616
|
35986
|
35986
|
|
|
Little
Darby (Logan Co.) (FC n=10, EC n=8)
|
370.4
|
407.1
|
407.1
|
1231
|
1265
|
1265
|
|
|
Spain
Creek incl. Pleasant Run and U.T. to BDC at RM
74.91(FC
n=30, EC n=24)
|
1058.8
|
994.1
|
994.1
|
3936
|
4612
|
4612
|
|
|
Spain
Creek (FC n=15, EC n=12)
|
1208.4
|
1249.8
|
1249.8
|
4692
|
4736
|
4736
|
|
|
Pleasant
Run (FC n=10, EC n=8)
|
902.4
|
754.9
|
754.9
|
3010
|
2586
|
2586
|
|
|
Hay
Run incl. U.T. to BDC at RM 69.40 (FC n=10, EC
n=8)
|
780.4
|
618.1
|
618.1
|
2209
|
1726
|
1726
|
|
|
Buck
Run (FC n=20, EC n=16)
|
684.1
|
1133.3
|
1133.3
|
8009
|
6970
|
6970
|
|
|
Robinson
Run incl. Sweeney Run (FC n=14, EC n=12)
|
655.8
|
825.1
|
825.1
|
3843
|
5963
|
5963
|
|
|
Sugar
Run (n=16)
|
405
|
361
|
361
|
1470
|
740
|
740
|
|
|
Middle
Big Darby (Sugar Run to Little
Darby
Creek
) [050600001
200] (n=28)
|
324.6
|
300.5
|
300.5
|
1704
|
790
|
790
|
|
|
Middle
Big Darby Creek RM 49.5-34.1 (mainstem)
(n=12)
|
138.4
|
146.5
|
146.5
|
494
|
562
|
562
|
|
|
Ballenger-Jones
Ditch and
Worthington
Ditch (n=8)
|
368.3
|
301.9
|
301.9
|
1858
|
704
|
704
|
|
|
Fitzgerald
Ditch and Yutzy Ditch (n=8)
|
659.9
|
609.0
|
609.0
|
2274
|
3749
|
3749
|
|
|
Ballenger-Jones,
Worthington
, Fitzgerald,
and Yutzy Ditches (n=16)
|
493.0
|
428.8
|
428.8
|
1897
|
1810
|
1810
|
|
|
Little
Darby
Creek
(headwaters to
Big
Darby
Creek
) [050600001
210] (n=132)
|
476.5
|
430.0
|
430.0
|
3790
|
3723
|
3723
|
|
|
Little
Darby
Creek
(mainstem) (n=49)
|
207.5
|
158.6
|
158.6
|
967
|
928
|
928
|
|
|
Clover
Run,
Lake
Run
, Jumping Run (n=15)
|
782.1
|
842.6
|
842.6
|
4282
|
3363
|
3363
|
|
|
Treacle
Creek incl. Howard Run and Proctor Run
(n=40)
|
641.0
|
522.3
|
522.3
|
3329
|
2708
|
2708
|
|
|
Howard
Run and Proctor Run (n=20)
|
600.0
|
530.5
|
530.5
|
4029
|
4273
|
4273
|
|
|
Howard
Run (n=5)
|
833.9
|
806.7
|
806.7
|
1097
|
1720
|
1720
|
|
|
Proctor
Run (n=15)
|
537.6
|
461.3
|
461.3
|
7075
|
6750
|
6750
|
|
|
Treacle
Creek (n=20)
|
684.8
|
514.3
|
514.3
|
1864
|
2300
|
2300
|
|
|
Spring
Fork incl. Bales Ditch and Barron Creek
(n=28)
|
1025.0
|
988.0
|
988.0
|
17108
|
12741
|
12741
|
|
|
Spring
Fork incl. Bales Ditch (n=23)
|
526.3
|
553.5
|
553.5
|
4733
|
5258
|
5258
|
|
|
Barron
Creek (n=5)
|
21999.7
|
14203.1
|
14203.1
|
40166
|
39952
|
39952
|
|
|
Lower
Big
Darby
Creek
(Little
Darby
Creek
to the Mouth)
[05060001 220] (n=122)
|
340.6
|
315.3
|
315.3
|
1690
|
1202
|
1202
|
|
|
Lower
Big Darby Creek RM 27.0-3.1 (mainstem) (n=30)
|
104.3
|
116.6
|
116.6
|
292
|
221
|
221
|
|
|
Smith
Ditch and tribs. (n=10)
|
377.1
|
352.1
|
352.1
|
955
|
851
|
851
|
|
|
Hellbranch
Run and tribs. incl. Springwater Run
(n=54)
|
602.2
|
514.0
|
514.0
|
2200
|
2606
|
2606
|
|
|
Hellbranch
Run and tribs. (n=49)
|
541.8
|
506.3
|
506.3
|
2038
|
2457
|
2457
|
|
|
Springwater
Run (n=5)
|
1694.6
|
382.3
|
382.3
|
6534
|
1565
|
1565
|
|
|
Unnamed
Trib. at RM 20.20 (n=5)
|
606.1
|
548.1
|
548.1
|
1739
|
1477
|
1477
|
|
|
Georges
Run and Greenbrier Creek (n=13)
|
335.3
|
280.6
|
280.6
|
730
|
679
|
679
|
|
|
FC
= Fecal Coliform bacterial standard found in the Ohio Water Quality
Standards (WQS), (OAC 3745-1)
EC
= E. coli bacteria
a
= The current E. coli primary
contact recreation (PCR) standard found in the Ohio WQS
b
= A target E. coli value under
evaluation as a more appropriate concentration for streams designated PCR
n
= # of observations
boldface
type indicates non-attainment of the recreational use, or a value
exceeding the target
|
