North Slope Tundra Lakes Summary Statistics, 2009
ALWAS Senior Buoy                    
ALWAS Depth (m) Conductivity (mS/cm) Temperature (C)
Lake Min Max Mean SD Min Max Mean SD Min Max Mean SD
UAF S0902 0.0 1.7 0.7 0.300 0.195 0.214 0.197 0.002 13.6 14.9 14.1 0.323
ANWR 44 0.0 1.9 1.3 0.400 0.066 0.067 0.066 0.000 15.0 15.2 15.1 0.044
ANWR 55 0.0 0.9 0.8 0.092 0.038 0.042 0.038 0.001 14.7 15.2 15.0 0.102
ANWR 56 0.0 1.6 1.3 0.203 0.082 0.085 0.084 0.001 13.0 13.3 13.1 0.082
ANWR 63 0.0 1.9 0.9 0.259 0.025 0.031 0.027 0.001 17.2 17.7 17.5 0.100
ANWR 77 0.0 3.0 1.3 0.400 0.133 0.134 0.134 0.000 13.1 13.8 13.4 0.300
W4 0.0 1.6 1.2 0.300 0.109 0.110 0.109 0.000 9.8 10.0 9.9 0.000
W3 0.0 1.7 1.3 0.200 0.082 0.082 0.082 0.000 9.2 9.4 9.3 0.000
W2/Well7 0.0 2.2 1.5 0.500 0.053 0.053 0.053 0.000 9.4 9.8 9.5 0.100
I1 0.0 15.8 11.7 2.900 0.138 0.139 0.138 0.001 11.2 11.6 11.5 0.100
I3 0.0 1.8 0.9 0.100 0.152 0.154 0.153 0.000 11.4 12.0 11.8 0.100
I4 0.0 17.2 12.8 4.200 0.090 0.091 0.091 0.000 12.0 12.3 12.2 0.100
I6 0.0 3.5 2.0 0.900 0.070 0.070 0.070 0.000 12.6 12.9 12.7 0.100
I7 0.0 15.3 3.9 2.100 0.035 0.036 0.035 0.000 12.5 12.8 12.7 0.100
M1/1409 0.0 3.6 1.7 0.900 0.154 0.155 0.154 0.000 11.3 11.9 11.4 0.100
M2 0.0 13.7 8.2 5.100 0.215 0.217 0.216 0.000 10.0 11.6 10.2 0.400
M4 0.0 2.7 2.1 0.800 0.131 0.132 0.132 0.000 11.5 12.6 11.7 0.300
pH ORP (mV) Turbidity (NTU)
Lake Min Max Mean SD Min Max Mean SD Min Max Mean SD
UAF S0902 8.10 8.50 8.20 -- 122.2 139.6 135.5 3.000 0.0 26.3 1.7 4.300
ANWR 44 7.41 8.20 7.60 -- 35.5 145.3 70.2 25.400 3.4 15.8 7.9 3.977
ANWR 55 7.28 7.75 7.40 -- 72.3 123.1 105.7 20.500 0.6 7.4 2.5 1.993
ANWR 56 7.80 8.44 8.00 -- 118.0 133.8 129.2 4.200 1.4 2.6 1.8 0.264
ANWR 63 7.40 8.60 7.70 -- 6.5 124.9 76.7 39.700 1.2 9.1 2.5 1.700
ANWR 77 7.70 7.80 7.80 -- 144.1 148.6 147.2 1.100 18.5 22.2 20.6 1.000
W4 7.50 7.60 7.50 -- 184.4 240.4 211.1 13.700 0.5 4.0 1.0 0.700
W3 7.50 8.20 7.60 -- 134.0 171.1 159.5 9.700 0.4 70.3 1.7 5.800
W2/Well7 7.30 7.60 7.40 -- 210.9 248.7 230.3 9.900 0.1 1.3 0.6 0.200
I1 8.00 8.20 8.10 -- 176.8 212.6 190.8 10.100 0.0 4.4 0.2 0.700
I3 8.20 8.40 8.20 -- 148.0 178.9 157.5 6.500 0.0 0.9 0.2 0.200
I4 7.90 8.10 8.00 -- 168.7 189.6 176.9 5.800 0.0 0.8 0.2 0.200
I6 7.80 8.30 7.90 -- 153.4 228.5 185.7 21.100 0.0 2.6 0.6 0.400
I7 7.40 8.10 7.60 -- 185.0 215.8 199.3 8.800 0.0 2.4 0.4 0.300
M1/1409 7.40 8.10 7.90 -- 142.6 164.9 148.9 3.700 0.0 2.6 0.6 0.500
M2 8.11 8.20 8.20 -- 140.5 150.3 148.6 1.500 0.0 3.9 0.5 0.700
M4 8.10 8.30 8.10 -- 109.9 142.9 134.1 8.000 0.0 3.8 0.6 0.700
Chlorophyll (Turner Sensor) Dissolved Oxygen (mg/L)
Lake Min Max Mean SD Min Max Mean SD
UAF S0902 18 36 23 4.313 10.0 11.1 10.8 0.100
ANWR 44 34 52 42 4.200 9.6 9.7 9.7 0.044
ANWR 55 32 48 38 4.168 9.1 9.7 9.5 0.091
ANWR 56 50 845 211 264.400 10.6 10.9 10.7 0.100
ANWR 63 50 412 108 102.200 9.9 11.1 10.7 0.300
ANWR 77 41 58 46 4.400 10.0 10.3 10.1 0.100
W4 21 37 26 4.700 11.1 11.3 11.2 0.100
W3 13 38 26 4.300 11.4 11.7 11.6 0.000
W2/Well7 19 50 25 5.500 11.4 11.7 11.6 0.100
I1 18 38 23 4.500 11.1 11.2 11.2 0.000
I3 17 52 22 4.500 10.9 11.2 11.0 0.000
I4 18 35 24 4.100 10.1 11.0 10.9 0.100
I6 20 47 35 4.900 9.7 10.9 10.5 0.100
I7 24 41 31 4.500 10.0 10.8 10.7 0.100
M1/1409 18 31 23 4.100 10.7 11.2 11.0 0.100
M2 15 30 20 4.000 11.0 11.4 11.3 0.100
M4 22 40 27 4.500 10.1 11.4 11.1 0.200
ALWAS Junior Buoy                      
ALWAS Depth (m) Conductivity (mS/cm) Temperature (C)
Lake Min Max Mean SD Min Max Mean SD Min Max Mean SD
W4 0.0 3.4 1.1 0.500 0.027 0.145 0.137 0.010 7.1 8.0 7.8 0.200
W3 0.0 3.6 1.1 0.400 0.027 0.124 0.114 0.017 6.0 7.5 6.7 0.300
W2/Well7 0.0 2.9 1.3 0.300 0.027 0.086 0.077 0.014 6.6 7.9 7.3 0.300
Helmericks Lake 0.0 5.1 3.4 0.844 0.303 0.357 0.321 0.009 5.4 12.7 8.8 1.241
I1 0.0 21.8 14.2 4.800 0.151 0.159 0.156 0.001 9.6 11.0 9.9 0.001
I3 0.0 4.1 1.9 1.200 0.145 0.610 0.210 0.110 9.4 11.8 11.5 0.600
I4 0.0 20.7 14.4 5.600 0.109 0.113 0.112 0.001 9.3 10.0 9.8 0.200
I6 0.0 4.1 2.7 1.000 0.068 0.086 0.080 0.004 11.5 12.0 11.7 0.100
M1/1409 0.0 3.3 1.4 0.700 0.147 0.153 0.147 0.001 10.6 12.0 11.3 0.200
M2 0.0 3.0 2.4 0.400 0.209 0.211 0.210 0.001 9.9 11.4 10.4 0.400
M4 0.0 2.5 2.1 0.600 0.124 0.126 0.125 0.000 11.5 12.8 11.8 0.300
Coleville River 0.0 10.8 5.4 2.058 0.274 0.340 0.294 0.009 8.8 12.4 10.2 0.624
pH ORP (mV) Turbidity (NTU)
Lake Min Max Mean SD Min Max Mean SD Min Max Mean SD
W4 -- -- -- -- -- -- -- -- 0.0 7.5 0.0 0.900
W3 -- -- -- -- -- -- -- -- 0.0 4.8 0.0 0.700
W2/Well7 -- -- -- -- -- -- -- -- 0.0 0.0 0.0 0.000
Helmericks Lake -- -- -- -- -- -- -- -- 0.0 27.6 3.1 6.406
I1 -- -- -- -- -- -- -- -- 0.0 0.0 0.0 0.000
I3 -- -- -- -- -- -- -- -- 0.0 7.4 0.3 0.700
I4 -- -- -- -- -- -- -- -- 0.0 0.0 0.0 0.000
I6 -- -- -- -- -- -- -- -- 0.0 1.1 0.3 0.300
M1/1409 7.50 7.90 7.80 -- 138.4 186.8 166.0 10.700 0.0 2.2 0.2 0.300
M2 7.90 8.20 8.10 -- 164.9 196.7 180.1 9.000 0.0 4.1 0.2 0.500
M4 8.00 8.30 8.10 -- 185.4 191.8 189.8 1.500 0.0 6.2 1.1 1.900
Coleville River -- -- -- -- -- -- -- -- 0.1 246.2 16.6 51.380
Chlorophyll (YSI Sensor)
Lake Min Max Mean SD
W4 0.0 14.3 4.4 3.200
W3 0.0 12.0 4.9 3.200
W2/Well7 0.0 12.1 3.7 3.200
Helmericks Lake 0.0 7.0 1.0 1.418
I1 0.0 14.0 4.0 3.300
I3 0.0 10.6 3.4 3.200
I4 0.0 10.3 3.9 2.400
I6 0.0 14.4 4.8 3.000
M1/1409 0.0 15.8 3.4 3.400
M2 0.0 57.2 8.0 12.700
M4 0.0 25.1 5.4 5.600
Coleville River 0.0 7.0 1.2 1.717
BathyBoat        
BathyBoat Depth (m)
Lake Min Max Mean SD
UAF S0902 -- 3.6 1.4 0.513
BP Demo -- 2.4 0.3 0.474
ANWR 44 -- 4.4 1.4 1.438
ANWR 55 -- 1.8 1.0 0.445
ANWR 56 -- 1.4 0.8 0.173
ANWR 63 -- 2.8 0.6 0.521
ANWR 77 -- 1.5 0.8 0.279
W4 -- 2.9 1.5 1.093
W3 -- 2.8 1.5 0.781
W2/Well7 -- 2.6 1.4 0.705
Helmericks Lake -- 4.6 3.1 1.029
I1 -- 20.1 9.9 6.719
I2 -- 4.4 1.3 1.401
I3 -- 21.8 8.3 7.741
I4 -- 25.8 17.1 9.023
I7 -- 6.9 2.6 1.875