BOARD00154 ‎(2)‎

• Board Meeting Date: 3/13/2007
• Description: ISF Section - Notice of 2008 Instream Flow Recommendations and Summary of ISF Workshop
• Board Meetings - Doc Type: Memo

Table 4. Results of USGS StreatmStats analysis bf Arapaho Creek. Because StreamStats did not calculate
all cell value, some cells are blank. No data havelbeen deleted, though month names have been added and
e~T_Ii~~)s;~~~oved to make the table easier to read.
J. -'J IJk,." )l.-."
. ~ ~ . ./'. t 1 J. \ \. J
I :.': ~ ;':_':.:',r"{..:" : - i: r;~:",; I

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Date: Thu Feb 8 2007 14:49:56
Site Location: Colorado
latitude: 40.1050
Longitude: -105.7321
Drainage Area: 17.4 ml2

Max

94
0.55

Low Flow Basin Characteristics I
100% Mountain Realon Low Flow (17.4 mill
Parameter Value Mln Max
Drainaoe Area (sauare miles) 17.' , 1 1151
Mean Basin Elevation (teet) 10700 I 8400 12200
Mean Annual PreciDltatlon (inches) 28., I 17.5 39.'

Streamflow Statistics I
Standard ElTOf Equivalent years of gO-Percent Prediction Interval
Statistic Flow Cft'/s I (oercentl record Minimum Maximum
PK2 25 ~ 60
PK5 33 , 4~
PK10 38 , 45
PK25 44 , 42
PKSO 48 i 4
PK100 52 I 43
PK200 56 1 45
PKSOO 61 I 4~

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Streamflow Statistics ,
Estimation Error EqUivalent years of gO-Percent Prediction Interval
Statistic Flow (ft'/s l ("""""ntl record Minimum Maximum
Ql -- January 2.a I 4~
Q2 -- February 2. I 4!
Q3 -- Mardi 3.0 ! 43
Q4 -- April 7.9 i 51:
Q5 -- May 41. I 58
Q6 -- June 92. I 510
Q7 -- July 38. I 63
Q8 -- August 13. i 70
Q9 -- September 8.11 I 63
Ql0 -- October 6.3 I SO
Q11 -- November 4.51 I 43
Q12 -- December 3.31 I 45
QA -- Annual 20. I 43
I
Low-Flow Statistics
M7D2Y I 1.9211 621 I I
M7Dl0Y I 1.1111 1001 I I
M7DSOY I 0.7'111 1601 I I

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