Normal View    Print View

    

Report Year: 2016
Summit, Union County
Summary Data Table
Parameter6/13/20168/1/20169/13/20162016201520142013201220112010200920072006200520042003200220012000
Lake Depth (m)3.23.23.13.23.23.12.8--2.63.23.13.0------
Thermocline Depth (m)2.32.7NilN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Secchi Disk Depth (m)0.70.50.60.60.81.02.2--0.40.50.30.9------
Temperature(oC)26.324.721.824.322.820.623.3--24.323.726.224.1------
Dissolved Oxygen (mg/L)15.02.47.28.27.85.25.3--5.76.68.68.1------
Dissolved Oxygen Saturation (%)186298198.790.458.662.0--67.277.6106.796.6------
Specific Conductivity (μS/cm)240.0220.0250.0236.7223.3296.7366.7--260.0276.7257.5378.3------
Turbidity (NTU)18.819.427.822.022.611.25.7--41.263.043.321.4------
Chlorophyll a (μg/L)76.948.763.463.041.621.818.2--29.717.360.921.8------
Total Phosphorus as P (μg/L)110.6485.4363.1319.7288417382.6--331.1110.412455------
SRP as P (μg/L)<2.8261.6172.3145.0145.4302.2291.5--248.719.01.8<1------
TKN (mg/L)0.952.041.591.531.612.601.33--<0.26---------
Total Dissolved Solids (g/L)0.20.10.20.20.10.20.2------------
Total Nitrogen as N (mg/L)----------1.92.242.36------
(Phenate)Ammonia Nitrogen (NH3 + NH4+) as N (μg/L)<0.6242.1010.20826634542--292499--------
(Phenate)Ammonia Nitrogen (NH3) as N (un-ionized)(μg/L)-246015316<PRL--<PQL<130--------
Nitrate + Nitrite (NO3 + NO2) as N (mg/L)<0.07<0.07<0.07<0.070.580.491--1-0.751.05------
TN:TP ratio----------172043------
pH8.88.68.08.58.47.77.4--8.08.28.38.7------
Alkalinity as CaCO3 (mg/L)989510910190126148--106112104142------
Silica as Si (mg/L)-------------------
Dissolved Organic Carbon (mg/L)21.6526.6130.5126.2613.0188.42--<6.4<6.26.376.98------
Inorganic Suspended Solids (mg/L)165495<3.2--1712226------
Volatile Suspended Solids (mg/L)10101612873--15<8108------
Total Suspended Solids (mg/L)1116201617113--32193215------
Carlson Trophic State Index (Secchi)*66696968636049--74697662------
Carlson Trophic State Index (Chl a)*73697171676159--64597161------
Carlson Trophic State Index (TP)*72938987869190--88727462------
*Index values generally range between 0 and 100, with increasing values indicating more eutrophic conditions.
       
 
 
 
Water Column Profiles
6/13/20168/1/20169/13/2016

Contact Limnology Laboratory, Iowa State University