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