Z09482950                       USGS 
H09482950       3212481105645000404019SW150503012.30           2430.            
N09482950       RAILROAD WASH AT TUCSON,ARIZONA
Y09482950       
309482950       19700720    642C               4.22                      
309482950       19710719   1590C                                         
309482950       19720812   1280C               7.00                      
309482950       19730727    220C               2.43                      
309482950       19740718    482C               3.65                      
309482950       19760711    312C               3.15                      
309482950       19770910    300C               4.00                      
309482950       19771006    223C               3.42                      
309482950       19781021    243C               3.58                      
309482950       19800823    222C               3.95                      
309482950       19810625    1626C              3.42                      
309482950       19820725    4216C              5.62                      
309482950       19830129    1066C              2.82