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South Leigh Creek Summary
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Year2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024
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Date9/11/20009/7/20019/5/20029/2/20039/22/20049/22/200510/13/200610/12/20079/3/20089/23/20099/21/20109/19/20119/13/20129/19/201310/7/20149/17/20159/14/20169/13/20178/29/20189/25/20199/?/20209/15/20219/1/20229/18/202310/24/2024
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Bank height - left side (ft)2.562.721.952.102.222.672.272.252.222.322.302.452.593.411.801.72.12.02.522.72.303.502.13.3
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Bank height - right side (ft)2.153.592.582.402.633.182.412.512.412.422.612.673.12.932.5022.62.62.62.52.92.405.402.93.6
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Bank width - left side (ft)6.4911.747.938.884.0511.907.295.685.647.684.644.867.029.573.863.67.24.35.24.24.94.406.104.94.6
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Bank width - right side (ft)4.9910.706.402.954.044.202.364.116.802.573.373.704.584.821.193.22.43.22.83.67.84.305.102.95.1
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Bank slope - left side (degrees)4115412216432230323333020304431272849306544219.439.7
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Bank slope - right side (degrees)242122252039-2354025211642454243442540402135414443.3
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Bank full width (ft)37.7824.8348.1639.5043.6342.6841.9241.6437.7610.2538.7736.3739.2831.2326.6337.536.541.935.634.133.139.2036.4038.337.7
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Stream width (ft)23.5321.5033.9130.4930.1329.1932.5430.0828.3131.0931.0528.3728.9524.3926.3430.627.829.127.229.926.828.4027.4031.130.6
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Average stream depth (ft)1.101.070.670.670.841.350.560.780.540.680.680.890.741.121.530.70.70.81.41.10.91.001.0011.4
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Average stream velocity (ft/sec)2.602.582.222.842.062.171.851.652.341.252.812.314.291.972.8121.61.42.82.21.62.103.001.82.2
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Volume (cubic ft/sec)67.3059.3550.4458.0252.1437.4833.7138.7135.7726.4359.3358.3383.9928.9979.0338.427.329.798.17536.951.6071.9052.794.7
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Gradient (rise/100 ft)352322224342433433.54.44.144.13.84.33.2
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Percent of pools313525517342310161910173726221443282822404945%33%17%
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Percent of riffles4158468673544625333539444261665041405859414543%58%69%
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Percent of bank covered by vegetation5665487278716250825867616670746563607284787278%74%81%
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Percent of bank not covered by vegetation
4434522822293850184233393430263537412816222723%26%23%
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Percent of bank stable5057237155707040444055455946665363605864536562%68%72%
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Percent of bank unstable5057772945303060566045554151344737404237483138%35%28%
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Percent of embeddedness32193134032433413035343931254224312533294529%26%37%
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Percent of canopy cover573033345555630245255387565764637276751726159%75%69%
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Percent of artificial bank protection050140000000660305101022%3%3%
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Large woody debrisOccCommCommOccCommCommOccNoneOccOccOccOccOccOccOccOcccomcomcomcomcomcomOcccomOcc
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Percent of silt/clay/mud2%3%1%3%2%1%1%0%0%2%0%1%2%2%1%3311251%5%1%1%
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Percent of sand5%3%5%3%3%2%5%2%3%3%3%2%3%6%2%1323212%4%3%4%
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Percent of gravel16%15%22%17%23%15%15%13%14%15%20%15%18%17%13%91112139915%15%18%12%
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Percent of cobbles44%48%48%47%54%43%40%55%49%42%41%50%45%43%45%42404141494140%38%40%41%
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Percent of boulders33%31%23%30%17%36%39%30%33%38%32%32%30%30%33%41404342384442%38%38%39%
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Percent of bedrock0%0%1%0%1%3%0%0%0%0%4%0%2%1%6%5301100%0%0%3%
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Total Percent for Substrate100%100%100%100%100%100%100%100%99%100%100%100%100%99%100%100100100100100100100%100%100%100%
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Number of Plecopteras378949473426311620503646565346235764317239751348266
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Number of Ephemeropteras25314922219117219411823621016521522815015719327222323313076144155210187230
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Number of Trichopteras323943581324362844872960844450444465142968766474656
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Number of Others19193775382846123477302748921618283622386066142442
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Total Number of Organisms341296351371257272231292308379310361338347306356352398324282330362404340394
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Percent of Plecopteras11%30%14%13%6%9%13%5%6%13%12%13%17%15%15%7%16%18%9%23%12%21%25%25%17%
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Percent of Ephemeropteras74%50%63%51%69%72%51%81%68%44%69%63%44%45%63%75%63%56%41%29%42%44%57%56%57%
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Percent of Trichopteras9%13%12%16%8%8%16%10%14%23%9%17%25%13%16%12%13%17%44%34%27%18%12%13%14%
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Percent of Others6%7%11%20%17%11%20%4%11%20%10%7%14%27%5%5%8%9%6%14%19%17%6%6%11%
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Total Percent 100%100%100%100%100%100%100%100%99%100%100%100%100%100%99%100%100%100%100%100%100%100%100%100%100%
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Number of kicks taken12122222223223222223333.34
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Turbidity (NTUs)2.660.940.690.931.653.290.930.772.071.001.281.381.143.031.792.740.981.391.311.6810.851.041.971.43
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Air temp (F)71.0045.5470.9270.9546.6055.6060.7655.4064.8066.2063.1459.5860.4157.7363.2955.2459.266.764.861.471.562.36364.157.9
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Air temp (Cel)21.677.5221.6221.648.0013.1215.9813.0018.2019.0017.3015.3215.3114.3917.3512.9115.619.520.615.72216.817.219.414.6
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Water temp (F)43.7043.6848.4548.3442.8048.1345.9142.0846.0046.4044.2943.2144.0143.7245.5144.7343.951.044.845.446.445.246.446.545.2
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Water temp (Cel)6.506.499.149.086.008.277.735.607.808.006.836.235.8411.097.427.067.19.39.07.48.27.57.910.17.3
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DO (mg/L)111110101110111110111110111010109910101111101010
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Nigtrate (mg/L)0.982.443.301.601.454.933.001.403.802.001.521.482.304.541.822.221.131.501.751.641.21.343.961.571.31
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Phosphate (mg/L)0.481.160.170.140.010.560.690.360.561.000.270.580.430.680.260.220.360.221.020.960.220.950.900.710.32
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pH8.408.838.608.638.428.538.588.708.809.068.638.908.58.79.18.78.608.058.378.898.828.69.68.687.86
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Hardness (mg/L)221201165165128165156150170178138166165240148178171210303159162181203178153
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TDS (ppm)1012241271148913011793107124108115131132981161551441239814414214313287
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Alkalinity (mg/L)224144145126741101489212113512014314014113212416415414611616913215412493
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Sulfate (mg/L)1.153.503.606.001.006.333.005.006.003.003.003.282.9217.003.00
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