Record Details
Page 32
University of Arizona CONTENTdm Server Respository
| Field | Value |
|---|---|
| Title | Page 32 |
| Type | text |
| Identifier | su01163 http://server16127.contentdm.oclc.org/u?/udallmexwater,705 |
| Description | from Hoover Dam since 1941. With the closure of Hoover Dam in 1935, the monthly quality variations downstream were reduced as drastically as the monthly flow variations. For the Colorado River near Grand Canyon during the years 1926 through 1931, the average monthly minimum concentration was about 280 ppm and the average monthly maximum was 1150 ppm. After closure of Hoover Dam, the comparable values near Grand Canyon were 345 ppm and 1240 ppm for the 15-year period, 1941 through 1955.... Epson Perfection 4870 Photo, 400 dpi, 8 bit, 8,373,760 bytes |
