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Ground-Water Hydrology of the Upper Klamath Basin, Oregon and ...

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Table 6 81<br />

Table 6. Estimated ground-water discharge to principal stream reaches in <strong>the</strong> upper <strong>Klamath</strong> <strong>Basin</strong>, <strong>Oregon</strong> <strong>and</strong> California.—Continued<br />

[Reach: River miles in Reach column are from <strong>Oregon</strong> <strong>Water</strong> Resources Department <strong>Klamath</strong> Drainage <strong>Basin</strong> Map, Map No. 14.6, 1971. Confidence level: Confidence levels represent a subjective assessment<br />

<strong>of</strong> <strong>the</strong> interval (plus or minus) that has a 95 percent probability <strong>of</strong> containing <strong>the</strong> true value. Confidence level categories are: 1, 10 percent; 2, 20 percent; 3, 30 percent; 4, 50 percent; 5, data insufficient to assess<br />

uncertainty. Subtotals rounded to two significant figures. Unless o<strong>the</strong>rwise noted, values were derived by taking <strong>the</strong> average <strong>of</strong> estimated discharge in <strong>the</strong> fall (Sept, Oct, Nov). USGS synoptic measurement<br />

data from Leonard <strong>and</strong> Harris (1974). Abbreviations: BOR, Bureau <strong>of</strong> Reclamation; CDWR, California Department <strong>of</strong> <strong>Water</strong> Resources; Cr, Creek; ft 3 /s, cubic feet per second; Hwy, Highway; mi, mile; NA,<br />

not applicable; NPS, National Park Service; OWRD, <strong>Oregon</strong> <strong>Water</strong> Resources Department; R, River; Res, Reservoir; RM, river mile; RR, rail road; USFS, U.S. Forest Service; USGS, U.S. Geological Survey]<br />

Number Stream name Reach<br />

Estimated gain<br />

(+) or loss (-)<br />

(ft 3 /s)<br />

Data source<br />

Period <strong>of</strong><br />

record<br />

Methods Remarks<br />

Confidence<br />

level<br />

59 Sevenmile<br />

Creek<br />

1 60 Crane Creek Headwaters to<br />

Sevenmile Road<br />

1 61 Mares Egg<br />

Spring<br />

62 Sevenmile<br />

Creek<br />

Headwaters to RM 17 18 USFS gage 10/1992–<br />

09/1997<br />

11 USGS<br />

measurements<br />

(3)<br />

Headwaters to mouth 12 OWRD<br />

RM 17 to Sevenmile<br />

Road<br />

63 Cherry Creek Headwaters to West<br />

Side Road Crossing<br />

64 Fourmile<br />

Creek<br />

Headwaters to West<br />

Side Road Crossing<br />

Subtotal for o<strong>the</strong>r upper <strong>Klamath</strong> Lake<br />

tributaries<br />

measurement<br />

(1)<br />

60 OWRD<br />

measurements<br />

(9)<br />

05/1905–<br />

08/1911<br />

Index regression to North Umpqua<br />

River above Copel<strong>and</strong> Cr near<br />

Toketee Falls, Oreg. (USGS Site<br />

14316500)<br />

OWRD site 61420303 2<br />

Average <strong>of</strong> all measurements 4<br />

10/1954 Four measurements averaged<br />

2.4 ft 3 /s during summer <strong>of</strong><br />

1992 <strong>and</strong> 1994<br />

10/1908–<br />

10/1959<br />

12 USFS gage 10/1992–<br />

09/1997<br />

120<br />

2 USGS gage 10/1964–<br />

09/1967<br />

Average Unknown upstream diversions.<br />

OWRD Site 21420393<br />

Index regression to Rogue R above<br />

Prospect, Oreg. (USGS<br />

Site 14328000)<br />

Index regression to Deer Cr above<br />

Crane Prairie Res, near La Pine,<br />

Oreg. (USGS Site 14052000)<br />

OWRD site 61420302 <strong>and</strong> site<br />

21420397<br />

USGS Site 11505600,<br />

regulated at Fourmile Lake<br />

4<br />

2<br />

2<br />

4<br />

65 <strong>Upper</strong> <strong>Klamath</strong><br />

Lake<br />

<strong>Upper</strong> <strong>Klamath</strong><br />

Lake<br />

Subtotal for upper <strong>Klamath</strong> Lake 350<br />

350 USGS gages 10/1964–<br />

09/1967<br />

Mass balance. Annual average<br />

(rounded).<br />

Published water balanced<br />

study from Hubbard (1970).<br />

Analysis used measured<br />

inflows, outflows, lake<br />

elevations, <strong>and</strong> evaporation<br />

estimates. Agrees with<br />

o<strong>the</strong>r estimates (Cooper,<br />

2004)<br />

3<br />

66 Clear Lake Drainage to Clear Lake<br />

Reservoir Dam (RM<br />

78)<br />

40 USGS gage,<br />

BOR data<br />

10/1904–<br />

09/1951<br />

Average 10/1904–05/1909 USGS gage,<br />

06/1909–09/1951 (Bureau<br />

<strong>of</strong> Reclamation, 1954)<br />

4

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