Dames & Moore, 1999 - USDA Forest Service

TABLE 4.3ba
AVERAGE MONTHLY WATER BUDGET FOR RAILROAD CREEK WATERSHED ABOVE LUCERNE
HOLDEN MINE RIIFS
DAMES a MOORE JOB NO. 1769340~19
Month
January
February
March
April
MaY
June
JulV
August
September
October
November
December
Total
Average Precipitation'
(inches)
8.94
6.4
3.79
2.16
1.25
1.5
. 1.03
1.5
2.19
4.6
8.77
9.98
52.1 1
Average streamflowb
(inches)
0.91
0.76
1.03
3.17
9.14
10.83
7.15
3.42
1.84
1.57
1.52
1.23
Notes:
(a) - Monthly average Precipitation estimated from Holden Village data
(b) -Monthly average streamflow runoff from period of record. USGS station at Lucerne
(c) - Potential evapotranspiration estimated from temperature data for basin.
(d) -Actual evapotranspiration assumed equal to PET unless Precipilation is less than PET, then equal to precipitation.
(e) - Glacial melt runoff based on basin estimate from Pelto (1993)
(I) - computed from S = (P)-(Q)-AET+(G) vhere S is the basin change in storage
including groundwater rechargeldischarge and snow accumulationlmelt.
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42.57
Potential EvapotranspirationC
(inches)
0.19
0.33
0.67
1.06
1.73
2.26
3.41
3.02
1.71
0.8
0.3
0.16
Actual Evapotransplration''
(inches)
0.19
0.33
0.67
1.06
1.25
1.5
1.03
1.5
1.71
0.8
0.3
0.16
10.5
Glacial Melt Runorf
(inches)
0
0
0
0
0
0
0.37
0.38
0.37
0
0
0
1.12
Basin change'
(inches)
7.84
5.31
2.09
-2.07
-9.14
-10.83
-6.78
-3.04
-0.99
2.23
6.95
8.59
0.16
L