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Attachment B Water Quality Duration Curves for the Lower Eel River Watershed. Eel River at SR 67 Bridge Fixed Station Site WQ Duration Curve (1991-2001 Monitoring Data) Site: #31 (WWE090-0001). Low Flows. High Flows. Moist Conditions. Mid-range Flows. Dry Conditions. - PowerPoint PPT Presentation
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Attachment BWater Quality Duration Curves for the
Lower Eel River Watershed
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Eel River at SR 67 Bridge Fixed Station Site
WQ Duration Curve (1991-2001 Monitoring Data)
Site: #31 (WWE090-0001)
1,208 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean of the 2001 Data = 639.80
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Eel River Including Connelly DitchWQ Duration Curve (1996 & 2001 Monitoring Data)
Site: #14 (WWE090-0004)
1060 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean of 2001 Data = 915.03
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Eel River Including Splunge CreekWQ Duration Curve (2001 Monitoring Data)
Site: #4 (WWE090-0014)
998 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 487.83
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Birch Cr above Crooked Cr and Brush Cr at SR 46
WQ Duration Curve (1991-2001 Flow Data & 1996 E. coli Data)
Site: #1 (WWE080-0003)
39.2 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Birch Cr below Crooked Cr and Brush Cr at CR300S
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #2 (WWE080-0009)
64.8 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily LoadGeometric Mean = 252.29
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Splunge Cr at mouth on CR535W-CR550WWQ Duration Curve (1991-2001 Flow Data & 1996 E. coli Data)
Site: #3 (WWE090-0002)
46.1 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Unnamed Trib. #1 to Connelly Ditch
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #05 (WWE090-0033)
3.12 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 305.58
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Unnamed Trib. #2 to Connelly Ditch at CR500S & CR100E
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #06 (WWE090-0034)
1.56 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily LoadGeometric Mean = 678.20
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Connelly Ditch at CR50EWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #07 (WWE090-0035)
6.24 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 1004.31
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Connelly Ditch at CR600SWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #08 (WWE090-0036)
12.48 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily LoadGeometric Mean = 192.65
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Connelly Ditch upstream of Clay City Trib. on SR 246
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #09 (WWE090-0038)
15.6 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 63.90
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Connelly Ditch at CR1100SWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #11 (WWE090-0039)
28.08 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 85.50
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Connelly Ditch near mouth at CR1200S
WQ Duration Curve (1991-2001 Flow Data & 1996 & 2001 E. coli Data)
Site: #12&13 (WWE090-0003 & WWE090-0040)
31.2 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean of 1996 Data = 246.76
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Connelly Ditch at CR400S near River Road
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #15 (WWE090-0032)
4.68 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 203.16
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
White Oak Cr at CR1250SWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #16 (WWE090-0021)
9.6 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 218.16
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Lagoon Creek at CR850SWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #21 (WWE090-0023)
23.9 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 285.09
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Eel River Above Turkey Creek at SR 157
WQ Duration Curve (1991 - 2001 Flow Data)
Site: #23 (WWE090-0024)
1,131 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 816.93
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Lick Creek at CR150S, East of Bond Rd
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #24 (WWE090-0025)
8.16 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 150.47
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Lick Creek at CR300SWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #25 (WWE090-0026)
19.525 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 147.28
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Hauser Creek a Trib. of Lick Creek at CR350S
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #26 (WWE090-0027)
7.875 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 106.20
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Lick Creek at CR450SWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #27 (WWE090-0028)
32.2 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 342.69
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Lick Creek above Beech Creek (Need Ditch-Beach Creek) at CR750S
WQ Duration Curve (1991-2001 Flow Data & 1996 E. coli Data)
Site: #28 (WWE090-0006)
38.8 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Beech Creek (Need Ditch-Beach Creek) on Arney Rd
WQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #29 (WWE090-0029)
6.01 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily LoadGeometric Mean = 674.23
1
1 0
1 0 0
1 0 0 0
1 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0
F low D ur a t ion I nt e r va l (% )
E. C
oli
(#/1
00 m
L)
S ing le
(W Q S = 2 3 5 / 1 0 0 m l)G e o M e a n
(W Q S = 1 2 5 / 1 0 0 m l)A ll D a t a (S ing le )
A pr - O c t
> 5 0 % S F
Brush Creek at CR700SWQ Duration Curve (1991-2001 Flow Data & 2001 E. coli Data)
Site: #30 (WWE090-0030)
3.09 square milesIDEM Data & USGS Gage Duration Interval
High Flows
Moist Conditions
Mid-range Flows
Dry Conditions
Low Flows
Office of Water Quality
Total Maximum Daily Load
Geometric Mean = 295.33
