Scientific Investigations Report 2006–5305

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5305

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Table 15. Estimates of ground-water inflow to Carson Valley, Nevada and California using the water-yield and chloride-balance methods.

Inflow source and method Ground-water inflow estimates, in acre-feet per year
Average Low range High range
Clear Creek and northern Carson Valley
Ground-water inflow from Eagle Valley1 1,450 400 2,500
Precipitation on Quaternary gravel and aeolian fan deposits2 250 200 300
Subtotal 1,700 600 2,800
Carson Range and western alluvial fans
Precipitation on western alluvial fans3 500 300 700
Subsurface inflow from perennial stream drainages4 2,300 2,300 2,300
Infiltration of ephemeral streamflow5 8,000 4,000 12,000
Subtotal–water-yield method (rounded) 11,000 7,000 15,000
Ground-water inflow from chloride-balance method6 (rounded) 27,000 10,000 40,000
Pine Nut Mountains and eastern alluvial fans
Subsurface inflow from perennial drainages4 4,300 4,300 4,300
Infiltration of ephemeral streamflow5 5,000 3,200 6,800
Subtotal–water-yield method (rounded) 9,000 8,000 11,000
Ground-water inflow from chloride–balance method7 (rounded) 11,000 6,700 15,000
Total for Carson Valley
Total–water-yield method (rounded) 22,000 16,000 29,000
Total–chloride-balance method (rounded) 40,000 17,000 58,000

1 From Maurer and Thodal (2000, p. 33–34).

2 From table 7.

3 From table 6.

4 From table 11.

5 From table 14.

6 From table 12.

7 From table 13.

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