Link to USGS home page.

Table 1. Increase of permitted septic systems
in Carson Valley over time


Date range Number of parcels
with septic systems
Increase

1851-1970 446  
1971-1980 1,591 1,145
1981-1990 2,760 1,169
1991-2001 4,064 1,304

Return to WRIR 03-4152.