TABLE 1
Rico Residential and Recreational Soils Data
RESIDENTIAL SOILS DATA RECREATIONAL SOILS DATA
North Rico South Rico East Rico West Rico Silver Creek Alluvial Fan River Corridor
SAMPLE   Pb SAMPLE Pb SAMPLE Pb SAMPLE Pb SAMPLE Pb SAMPLE Pb
NUMBER (mg/kg) NUMBER (mg/kg) NUMBER (mg/kg) NUMBER (mg/kg) NUMBER (mg/kg) NUMBER (mg/kg)
Colluvium - Disturbed   Alluvial Fan Deposits - Disturbed         Talus/Slope Wash (West) - Undisturbed Silver Creek Alluvium - Disturbed   Dolores River Corridor  
926 1,630   RS24 1,000   927 67   RSS09 184 J RS21 3,400   RSS15 424  J
932 1,150   RSS27 677   928 210   RSS12 124 J RS22 2,000   RSS16 471  J
936 1,920   RSS36 825   BK11w 62   RSS13 78 J RS23 800   RS12 5,200  
940 1,390   RSS20 791 J BK10w 108 J BK07 66         RS19 12,000  
RSS3O 3,920   School lots 650   BK38w 84   BK08 57         RS20 2,000  
RSS3I 893   RS04 160   BK39w 96   BK09 141         RS27 500  
RSS23 851   RS02 1,500   BK01 206   BK10 108 J       RS25 1,200  
RSS24 2,100   RS18 1,400   BK02 412   BK11 64 J       RS26 1,600  
RSSO7 2,230   Lots 17-20 830   BK15 155   BK12 441 J       RS28 3,500  
      RS16 750   BK03 82   RSS14 (2) 115 J       RSS19 6,180 J
      RSS18 364 J RSS34 306   RSS10 (3) 143 J       RSS11 124  
      RSS17 1,150 J RSS02 112   RSS22 (3) 380         RSS35 146  
      RSS37 908   RSS03 105               RSS01 346  
      RSS26 675   RSS04 138                    
      RSS25 1,000   Group Tract 260                    
      RSS28 402   AdaNorth 77                    
      Trench2 230   RS01 100                    
            RSS06 (1) 240                    
N 9   N 17   N 18   N 12   N 3   N 13  
MIN 851   MIN 160   MIN 62   MIN 57   MIN 800   MIN 124  
MAX 3,920 MAX 1,500   MAX 412   MAX 441   MAX 3,400   MAX 12,000  
MEAN 1,790 MEAN 783   MEAN 157   MEAN 158   MEAN 2,070   MEAN 2,590  
GEOMEAN 1,600 GEOMEAN 680   GEOMEAN 134   GEOMEAN 127   GEOMEAN 1,760   GEOMEAN 1,100  
MEDIAN 1,630 MEDIAN 791   MEDIAN 110   MEDIAN 120   MEDIAN 2,000   MEDIAN 1,200  
STDEV 944 STDEV 371   STDEV 97   STDEV 124   STDEV 1,300   STDEV 3,450  
VARIANCE 8.91E+05 VARIANCE 1.37E+05   VARIANCE 9,350   VARIANCE 15,500   VARIANCE 1.69E+06   VARIANCE 1.19E+07  
T-VALUE 1.86 T-VALUE 1.746   T-VALUE 1.74   T-VALUE 1.796   T-VALUE 2.92   T-VALUE 1.782  
95% UCL 2,380 95% UCL 940   95%UCL 196   95%UCL 223   95% UCL 4,260   95% UCLM 4,300  
FREQUENCY 9/9   FREQUENCY 17/17   FREQUENCY 18/18   FREQUENCY 12/12   FREQUENCY 3/3   FREQUENCY 13/13  
U = Analyte not detected at or above detection limit. Value presented is one half the detection limit.
J = Analyte detected above instrument detection limit but below contract required detection limit.
NA = Not analyzed
(1) Sample RSS06 was disturbed by road construction.
(2) Sample RSS14 was disturbed by road construction.
(3) Samples RSS10 and RSS22 are from the Iron Draw Alluvial Fan Deposit.