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USGS KENTUCKY LABORATORY
Fine Sediment Separation Results
Results include determination of fine material (<0.063 mm) mass for each SLQA study. A highlighted value exceeds study's
control limits, for a specific size class. Laboratories analyze 9 samples in each study. Target values are determined 
gravimetrically during sample preparation.Median percent differences are calculated using all submitted analyses by 
participants for each sample class. Upper and lower control limits are +/-3 f-pseudosigma from median, respectively. 
F-pseudosigma = (Interquartile range)/1.349. 
Reported laboratory results percent difference = (((Reported value - Target value)/(Target value)) * 100).
    Fine Material Mass Results
Class Sample Id Target Fine Median Percent  Lower Control Reported Laboratory  Upper Control
  Mass Difference  Limit  Results Percent  Limit 
    Mass (g) (%) (%) Difference (%) (%)
Study 1, 1997 (Jul - Aug)  
1 A1004 0.058 -5.93 -14.51 -8.59 2.65
1 B1136 0.058 -5.93 -14.51 -6.10 2.65
1 C1260 0.058 -5.93 -14.51 -9.22 2.65
2 A1004 0.116 -6.33 -15.27 -9.06 2.61
2 B1136 0.116 -6.33 -15.27 -6.33 2.61
2 C1260 0.116 -6.33 -15.27 -3.88 2.61
3 A0704 2.300 -1.67 -6.36 -3.21 3.02
3 B0836 2.300 -1.67 -6.36 -3.40 3.02
3 C6060 2.700 -1.67 -6.36 -3.13 3.02
   
Study 2, 1997 (Nov - Dec)  
1 A208 0.058 -6.60 -16.30 -4.13 3.09
1 B2136 0.058 -6.60 -16.30 -6.60 3.09
1 C2264 0.058 -6.60 -16.30 -4.37 3.09
2 A208 0.116 -6.73 -17.41 -6.24 3.96
2 B2136 0.116 -6.73 -17.41 -4.63 3.96
2 C2264 0.116 -6.73 -17.41 -4.74 3.96
3 A208 2.300 -2.00 -3.58 -1.64 -0.41
3 B2136 2.300 -2.00 -3.58 -1.00 -0.41
3 C2264 2.700 -2.00 -3.58 -1.97 -0.41
   
Study 1, 1998 (May - Jun)  
1 A5620 0.058 -7.80 -17.43 -5.42 1.83
1 B5753 0.058 -7.80 -17.43 -8.81 1.83
1 C5876 0.058 -7.80 -17.43 -8.00 1.83
2 A7325 0.116 -7.21 -14.04 -7.00 -0.38
2 B7248 0.116 -7.21 -14.04 -7.96 -0.38
2 C7181 0.116 -7.21 -14.04 -7.76 -0.38
3 A4820 2.300 -2.11 -11.15 -2.46 6.94
3 B6353 2.700 -2.11 -11.15 -2.48 6.94
3 C6476 2.700 -2.11 -11.15 -8.85 6.94
   
Study 2, 1998 (Oct - Dec)  
1 A5620 0.061 -6.19 -24.59 -3.84 12.21
1 B5759 0.061 -6.19 -24.59 -2.78 12.21
1 C5876 0.061 -6.19 -24.59 -4.71 12.21
2 A7325 0.120 -4.82 -15.52 -3.82 5.88
2 B7248 0.120 -4.82 -15.52 -1.10 5.88
2 C7181 0.120 -4.82 -15.52 -2.53 5.88
3 A1220 2.400 -2.61 -9.15 -4.42 3.94
3 B6353 2.600 -2.61 -9.15 -1.53 3.94
3 C6476 2.600 -2.61 -9.15 -0.91 3.94
   
Study 1, 1999 (Apr - May)  
1 A0807 0.061 -7.01 -18.45 -4.59 4.43
1 B0936 0.061 -7.01 -18.45 -1.83 4.43
1 C4473 0.058 -7.01 -18.45 -2.47 4.43
2 A4647 0.116 -5.46 -12.10 -0.26 1.18
2 B4778 0.116 -5.46 -12.10 -3.67 1.18
2 C0561 0.120 -5.46 -12.10 -9.17 1.18
3 A2166 2.400 -3.25 -10.36 -2.75 3.86
3 B0807 2.400 -3.25 -10.36 -3.38 3.86
3 C3974 2.300 -3.25 -10.36 -1.15 3.86
   
Study 2, 1999 (Sep - Oct)  
1 A1041 0.060 -4.30 -16.72 -6.78 8.11
1 B1171 0.060 -4.30 -16.72 -1.17 8.11
1 C1514 0.060 -4.30 -16.72 3.34 8.11
2 A1013 0.150 -4.90 -11.96 1.59 2.16
2 B1134 0.150 -4.90 -11.96 -1.18 2.16
2 C1264 0.150 -4.90 -11.96 -2.70 2.16
3 A1210 2.500 -1.40 -6.87 0.15 4.08
3 B1336 2.500 -1.40 -6.87 -0.27 4.08
3 C1466 2.500 -1.40 -6.87 0.02 4.08
   
Study 1, 2000 (May - Jun)  
1 A0404 0.080 -4.49 -13.45 -5.87 4.46
1 B3434 0.080 -4.49 -13.45 -3.22 4.46
1 C6464 0.080 -4.49 -13.45 -2.24 4.46
2 A0404 -3.10 -11.51 5.32
2 B3434 0.200 -3.10 -11.51 -4.49 5.32
2 C6464 0.200 -3.10 -11.51 -2.15 5.32
3 A0808 2.200 0.21 -3.65 -0.39 4.07
3 B3434 2.200 0.21 -3.65 -0.36 4.07
3 C6464 2.200 0.21 -3.65 0.70 4.07
   
Study 2, 2000 (Oct - Nov)  
1 A0707 0.100 14.84 -126.98 -1.40 156.66
1 B3434 0.100 14.84 -126.98 78.10 156.66
1 C6464 0.100 14.84 -126.98 16.73 156.66
2 A1919 0.220 1.74 -49.81 10.07 53.30
2 B3434 0.220 1.74 -49.81 -1.72 53.30
2 C6464 0.220 1.74 -49.81 -2.22 53.30
3 A0404 2.500 -1.25 -6.34 -1.04 3.83
3 B3434 2.500 -1.25 -6.34 -1.13 3.83
3 C6464 2.500 -1.25 -6.34 -0.19 3.83
   
Study 1, 2001 (Jul - Sep)  
1 A0909 0.100 -3.85 -9.98 5.21 2.29
1 B3939 0.100 -3.85 -9.98 5.19 2.29
1 C6969 0.100 -3.85 -9.98 -1.10 2.29
2 A2211 0.300 -2.74 -7.03 2.36 1.55
2 B3947 0.300 -2.74 -7.03 2.06 1.55
2 C8283 0.300 -2.74 -7.03 -0.46 1.55
3 A1022 2.400 -1.45 -6.51 0.05 3.60
3 B5644 2.400 -1.45 -6.51 0.15 3.60
3 C8581 2.400 -1.45 -6.51 -0.18 3.60
   
Study 2, 2001 (Oct - Jan)  
1 A2302 0.080 -3.97 -30.28 10.89 22.34
1 B4134 0.080 -3.97 -30.28 23.40 22.34
1 C8366 0.080 -3.97 -30.28 31.17 22.34
1 A0520 0.080 -3.97 -30.28 -0.44 22.34
1 B3539 0.080 -3.97 -30.28 9.92 22.34
1 C6688 0.080 -3.97 -30.28 4.78 22.34
2 A0520 0.250 -3.79 -13.27 3.17 5.69
2 B4139 0.250 -3.79 -13.27 8.22 5.69
2 C8665 0.250 -3.79 -13.27 10.60 5.69
2 A1114 0.250 -3.79 -13.27 -1.49 5.69
2 B3545 0.250 -3.79 -13.27 -1.59 5.69
2 C8071 0.250 -3.79 -13.27 8.26 5.69
3 A2621 2.200 -1.46 -6.53 1.02 3.62
3 B5353 2.200 -1.46 -6.53 -0.02 3.62
3 C6871 2.200 -1.46 -6.53 0.99 3.62
3 A3024 2.200 -1.46 -6.53 -0.06 3.62
3 B3951 2.200 -1.46 -6.53 0.53 3.62
3 C7273 2.200 -1.46 -6.53 0.40 3.62
   
Study 1, 2002 (Jul - Sep)  
1 A0327 0.060 -2.71 -18.16 4.00 12.74
1 B4342 0.060 -2.71 -18.16 -4.83 12.74
1 C7571 0.060 -2.71 -18.16 3.48 12.74
2 A2125 0.128 -3.75 -9.71 -1.80 2.21
2 B3955 0.128 -3.75 -9.71 -2.43 2.21
2 C7375 0.128 -3.75 -9.71 -4.04 2.21
3 A0530 2.185 -1.17 -4.14 -0.60 1.81
3 B4749 2.185 -1.17 -4.14 -0.75 1.81
3 C7669 2.185 -1.17 -4.14 -0.79 1.81
   
Study 2, 2002 (Nov - Dec)  
1 A2416 0.065 -2.46 -10.34 -4.00 5.42
1 B3831 0.065 -2.46 -10.34 -1.85 5.42
1 C8367 0.065 -2.46 -10.34 -1.38 5.42
2 A0410 0.105 -3.37 -10.32 -4.09 3.58
2 B6058 0.105 -3.37 -10.32 -3.42 3.58
2 C6461 0.105 -3.37 -10.32 -2.10 3.58
3 A2701 2.222 -0.79 -4.26 -1.30 2.67
3 B5456 2.222 -0.79 -4.26 -0.81 2.67
3 C8164 2.222 -0.79 -4.26 -1.03 2.67
   
Study 1, 2003 (Jun - Aug)  
1 A2754 0.090 -5.14 -12.32 -5.17 2.04
1 B5725 0.090 -5.14 -12.32 -6.34 2.04
1 C1838 0.090 -5.14 -12.32 -5.28 2.04
2 A4236 0.185 -3.36 -8.25 -2.83 1.53
2 B1026 0.185 -3.36 -8.25 -3.87 1.53
2 C2639 0.185 -3.36 -8.25 -3.29 1.53
3 A1933 2.700 -1.03 -3.14 -0.92 1.08
3 B2838 2.700 -1.03 -3.14 -0.63 1.08
3 C0806 2.700 -1.03 -3.14 -2.59 1.08
   
Study 2, 2003 (Dec - Feb)  
1 A4149 0.050 -2.70 -13.09 -3.20 7.70
1 B4328 0.050 -2.70 -13.09 -4.74 7.70
1 C5615 0.050 -2.70 -13.09 -3.38 7.70
2 A2723 0.280 -2.32 -6.05 -3.67 1.41
2 B1511 0.280 -2.32 -6.05 -3.14 1.41
2 C0416 0.280 -2.32 -6.05 -3.42 1.41
3 A3541 2.800 -0.44 -2.61 -0.49 1.73
3 B0408 2.800 -0.44 -2.61 2.62 1.73
3 C5115 2.800 -0.44 -2.61 -0.55 1.73
   
Study 1, 2004 (Jun - Jul)  
1 A4018 0.090 -3.86 -11.17 -2.60 3.44
1 B5819 0.090 -3.86 -11.17 -3.44 3.44
1 C0942 0.090 -3.86 -11.17 -2.95 3.44
2 A4036 0.300 -2.06 -5.87 -2.06 1.75
2 B5413 0.300 -2.06 -5.87 -1.29 1.75
2 C5047 0.300 -2.06 -5.87 -3.04 1.75
3 A1430 2.200 -0.81 -4.23 -0.86 2.61
3 B5558 2.200 -0.81 -4.23 -0.22 2.61
3 C5757 2.200 -0.81 -4.23 -0.21 2.61
   
Study 2, 2004 (Nov - Dec)  
1 A6904 0.060 -4.41 -11.97 -3.18 3.14
1 B6462 0.060 -4.41 -11.97 -4.51 3.14
1 C5467 0.060 -4.41 -11.97 -4.03 3.14
2 A6152 0.250 -3.45 -8.36 -2.72 1.46
2 B4903 0.250 -3.45 -8.36 -2.43 1.46
2 C4630 0.250 -3.45 -8.36 -0.21 1.46
3 A2658 2.400 -1.51 -4.31 -1.36 1.30
3 B3061 2.400 -1.51 -4.31 -1.01 1.30
3 C3947 2.400 -1.51 -4.31 -1.06 1.30
   
Study 1, 2005 (May - Jul)  
1 A7113 0.100 -7.38 -22.51 -4.98 7.75
1 B4815 0.100 -7.38 -22.51 -6.29 7.75
1 C1827 0.100 -7.38 -22.51 -5.69 7.75
2 A2030 0.200 -8.95 -31.95 -5.45 14.05
2 B6757 0.200 -8.95 -31.95 -5.89 14.05
2 C3801 0.200 -8.95 -31.95 -3.75 14.05
3 A5472 3.000 -1.90 -6.25 -0.47 2.46
3 B3844 3.000 -1.90 -6.25 -0.09 2.46
3 C4027 3.000 -1.90 -6.25 -1.90 2.46
   
Study 2, 2005 (Nov - Dec)  
1 A1406 0.050 -11.25 -42.95 -12.00 20.44
1 B2459 0.050 -11.25 -42.95 -13.52 20.44
1 C6939 0.050 -11.25 -42.95 -9.40 20.44
2 A5125 1.350 -9.06 -54.76 -4.31 36.64
2 B6856 1.350 -9.06 -54.76 -3.36 36.64
2 C0839 1.350 -9.06 -54.76 -3.99 36.64
3 A2661 4.000 -2.07 -7.40 -1.50 3.26
3 B6127 4.000 -2.07 -7.40 -0.50 3.26
3 C3958 4.000 -2.07 -7.40 -1.29 3.26
   
Study 1, 2006 (May - Jun)  
1 A2855 0.070 -9.10 -30.60 -10.53 12.50
1 B4808 0.070 -9.10 -30.60 -13.86 12.50
1 C0920 0.070 -9.10 -30.60 -7.17 12.50
2 A2669 0.900 -7.30 -48.60 -5.74 34.00
2 B1508 0.900 -7.30 -48.60 -4.60 34.00
2 C1448 0.900 -7.30 -48.60 -4.21 34.00
3 A5046 4.200 -1.60 -6.90 -0.65 3.70
3 B0961 4.200 -1.60 -6.90 0.37 3.70
3 C8133 4.200 -1.60 -6.90 0.93 3.70
   
Study 2, 2006 (Oct - Nov)  
1 A4281 0.062 -8.30 -26.70 -6.62 10.00
1 B3808 0.062 -8.30 -26.70 -5.93 10.00
1 C3347 0.062 -8.30 -26.70 -4.59 10.00
2 A1310 0.600 -6.80 -24.20 -2.58 10.70
2 B2848 0.600 -6.80 -24.20 -2.82 10.70
2 C7202 0.600 -6.80 -24.20 -2.76 10.70
3 A3411 4.000 -0.50 -6.60 -0.81 5.60
3 B4969 4.000 -0.50 -6.60 0.31 5.60
3 C6027 4.000 -0.50 -6.60 0.66 5.60
   
Study 1, 2007 (Apr - May)  
   
1 A6568 0.075 -3.87 -8.31 -3.10 0.57
1 B1929 0.075 -3.87 -8.31 -2.99 0.57
1 C4713 0.075 -3.87 -8.31 -4.33 0.57
2 A3162 1.700 -0.77 -2.46 -0.55 0.93
2 B0522 1.700 -0.77 -2.46 -0.69 0.93
2 C3510 1.700 -0.77 -2.46 -0.59 0.93
3 A4060 4.100 -1.22 -4.92 0.90 2.48
3 B3766 4.100 -1.22 -4.92 2.36 2.48
3 C1673 4.100 -1.22 -4.92 1.68 2.48
   
Study 2, 2007 (Nov - Dec)  
   
1 A3460 0.055 -6.83 -23.39 -7.34 9.73
1 B6864 0.055 -6.83 -23.39 -6.37 9.73
1 C3801 0.055 -6.83 -23.39 -7.30 9.73
2 A0606 0.500 -3.40 -11.08 -2.92 4.28
2 B5142 0.500 -3.40 -11.08 -2.30 4.28
2 C5846 0.500 -3.40 -11.08 -2.56 4.28
3 A7223 4.150 -0.48 -2.73 1.66 1.77
3 B2637 4.150 -0.48 -2.73 1.50 1.77
3 C1549 4.150 -0.48 -2.73 0.38 1.77
   
Study 1, 2008 (May - Jun)  
   
1 A1373 0.045 -5.25 -17.09 -4.25 6.60
1 B5059 0.045 -5.25 -17.09 -2.33 6.60
1 C3316 0.045 -5.25 -17.09 -3.34 6.60
2 A5969 0.400 -2.02 -5.82 -1.46 1.80
2 B2940 0.400 -2.02 -5.82 -1.40 1.80
2 C2673 0.400 -2.02 -5.82 -1.42 1.80
3 A2128 4.250 -0.22 -2.99 2.21 2.55
3 B1929 4.250 -0.22 -2.99 1.53 2.55
3 C0647 4.250 -0.22 -2.99 0.68 2.55
KY Sand Separation KY Sediment Mass Results KY Suspended Sediment Concentration