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Report Year: 2016
Hooper Area Pond, Warren County
Summary Data Table
Parameter5/23/20167/13/20168/21/20162016201520142013201220112010200920072006200520042003200220012000
Lake Depth (m)5.04.94.84.95.04.94.74.74.75.15.1--5.25.05.05.05.65.1
Thermocline Depth (m)2.82.82.5N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Secchi Disk Depth (m)1.40.70.70.91.31.61.40.91.00.90.8--0.81.22.21.41.11.1
Temperature(oC)19.727.325.924.321.124.324.724.024.925.625.1--26.623.724.426.524.424.7
Dissolved Oxygen (mg/L)11.68.44.48.18.18.19.98.78.812.86.9--10.49.79.19.212.38.1
Dissolved Oxygen Saturation (%)1271055495.490.095.9119.7104.7105.6156.783.9--129.9115.9109.7117.9150.597.7
Specific Conductivity (μS/cm)280.0190.0210.0226.7213.3243.3233.3243.3226.7210.0223.3--269.6256.4247.3285.9197.2244.8
Turbidity (NTU)2.47.78.66.210.24.75.19.910.110.29.3--17.415.49.019.829.98.8
Chlorophyll a (μg/L)32.633.18.824.824.417.111.845.338.932.123.3--129.639.422.232.822.321.3
Total Phosphorus as P (μg/L)37.579.188.568.4564343.142.861.963.173.2--8876587388-
SRP as P (μg/L)<2.8<2.84.7<2.8<4.3<5.6<14<10<11<8<9--<14.22.21.5--
TKN (mg/L)0.740.910.880.840.890.641.171.551.911.27---------
Total Dissolved Solids (g/L)0.20.10.10.10.10.20.20.20.2----------
Total Nitrogen as N (mg/L)----------1.3--1.631.641.040.892.351.29
(Phenate)Ammonia Nitrogen (NH3 + NH4+) as N (μg/L)12.90<0.6<0.6<0.6<26<262016<145<136298--------
(Phenate)Ammonia Nitrogen (NH3) as N (un-ionized)(μg/L)1-3-2-111<PRL<PQL<PQL<PQL<130--------
Nitrate + Nitrite (NO3 + NO2) as N (mg/L)<0.07<0.07<0.07<0.070.120.120<0.06<0.4<0.5---0.420.120.220.141.250.21
TN:TP ratio----------18--2220211649-
pH8.38.48.08.38.18.48.78.38.38.58.0--8.48.58.48.57.87.5
Alkalinity as CaCO3 (mg/L)103808589859610097988299--1121016710687141
Silica as Si (mg/L)-------------3.633.151.702.46--
Dissolved Organic Carbon (mg/L)23.6820.3222.1522.0511.2186.8716<7.6<6.4<6.2--8.3511.0411.3011.07--
Inorganic Suspended Solids (mg/L)352433<3.2<2<568--374465
Volatile Suspended Solids (mg/L)476653589<9<8--876734
Total Suspended Solids (mg/L)8128985610131212--111391089
Carlson Trophic State Index (Secchi)*5666666256535561606263--635849555959
Carlson Trophic State Index (Chl a)*6565526262585568676562--786761656161
Carlson Trophic State Index (TP)*5667696562585858646466--6967636669-
*Index values generally range between 0 and 100, with increasing values indicating more eutrophic conditions.
       
 
 
 
Water Column Profiles
5/23/20167/13/20168/21/2016

Contact Limnology Laboratory, Iowa State University