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Report Year: 2016
Lake Icaria, Adams County
Summary Data Table
Parameter6/13/20168/2/20169/12/20162016201520142013201220112010200920072006200520042003200220012000
Lake Depth (m)7.97.67.67.78.07.77.67.67.78.28.0--7.89.98.99.19.59.0
Thermocline Depth (m)4.94.4NilN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Secchi Disk Depth (m)2.00.70.81.11.00.90.90.60.70.60.7--2.30.91.41.10.80.7
Temperature(oC)25.226.521.324.424.421.423.124.125.124.323.8--24.122.223.523.323.125.5
Dissolved Oxygen (mg/L)6.07.45.66.36.76.97.17.87.06.28.2--7.75.48.88.76.27.9
Dissolved Oxygen Saturation (%)72926375.980.477.081.892.386.674.096.0--91.561.9102.8101.470.296.3
Specific Conductivity (μS/cm)270.0210.0240.0240.0246.7230.0243.3260.0223.3226.7260.0--340.5294.5293.5292.5239.0281.0
Turbidity (NTU)2.225.415.614.410.616.615.919.517.817.813.1--7.619.110.814.224.322.0
Chlorophyll a (μg/L)11.372.030.738.032.018.729.853.634.828.644.7--16.96.826.419.123.212.6
Total Phosphorus as P (μg/L)25.980.881.262.6466251.666.254.176.866.8--3753624666-
SRP as P (μg/L)<2.8<2.85.5<2.8<4.314.0<14<10<11<8<9--7.19.61.22.5--
TKN (mg/L)<0.51.381.240.951.091.551.211.320.81<0.5---------
Total Dissolved Solids (g/L)0.20.10.20.20.20.20.20.20.1----------
Total Nitrogen as N (mg/L)----------1.2--3.403.001.411.492.841.43
(Phenate)Ammonia Nitrogen (NH3 + NH4+) as N (μg/L)<0.6<0.6333.701098124811465199<136<130--------
(Phenate)Ammonia Nitrogen (NH3) as N (un-ionized)(μg/L)0-114465<PRL<PQL<PQL<PQL<130--------
Nitrate + Nitrite (NO3 + NO2) as N (mg/L)1.63<0.07<0.0710.720.6510<0.4<0.5---2.431.660.440.582.280.30
TN:TP ratio----------20--10457253544-
pH8.68.88.08.58.27.78.18.18.37.98.1--8.28.08.28.18.07.8
Alkalinity as CaCO3 (mg/L)12194106107110951021169494112--1321178611488125
Silica as Si (mg/L)-------------3.894.021.571.50--
Dissolved Organic Carbon (mg/L)23.0823.7127.1024.6312.1565.535<7.6<6.4<6.2--5.903.999.887.96--
Inorganic Suspended Solids (mg/L)36653649687--91398119
Volatile Suspended Solids (mg/L)312776669<8<910--397845
Total Suspended Solids (mg/L)618131210111118131617--122216161514
Carlson Trophic State Index (Secchi)*5065645860616267656764--486156586365
Carlson Trophic State Index (Chl a)*5473646665596470656468--584963606155
Carlson Trophic State Index (TP)*5167686459646165626765--5661645965-
*Index values generally range between 0 and 100, with increasing values indicating more eutrophic conditions.
       
 
 
 
Water Column Profiles
6/13/20168/2/20169/12/2016

Contact Limnology Laboratory, Iowa State University