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Report Year: 2016
Snyder Bend, Woodbury County
Summary Data Table
Parameter5/17/20166/28/20168/17/20162016201520142013201220112010200920072006200520042003200220012000
Lake Depth (m)1.31.01.51.31.41.81.31.51.9--1.91.9------
Thermocline Depth (m)NilNilNilN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Secchi Disk Depth (m)0.30.30.30.30.30.40.30.21.3--0.91.1------
Temperature(oC)15.027.127.823.318.322.923.622.516.7--26.224.3------
Dissolved Oxygen (mg/L)14.112.611.012.610.78.19.07.19.4--8.910.5------
Dissolved Oxygen Saturation (%)140158140145.9113.693.3105.082.796.6--110.2124.6------
Specific Conductivity (μS/cm)710.0860.0950.0840.0850.0763.3786.7853.3710.0--747.2673.8------
Turbidity (NTU)60.9-25.443.230.624.342.561.67.5--16.626.9------
Chlorophyll a (μg/L)127.793.419.380.141.335.826.448.712.7--21.813.0------
Total Phosphorus as P (μg/L)198.1150.7121.7156.8122101129.9181.373.4--6454------
SRP as P (μg/L)<2.8<2.8<2.8<2.8<4.3<5.6<14<10<11--<1<1------
TKN (mg/L)1.801.730.921.481.140.791.121.500.51----------
Total Dissolved Solids (g/L)0.50.60.60.50.60.50.50.60.5----------
Total Nitrogen as N (mg/L)-----------0.880.99------
(Phenate)Ammonia Nitrogen (NH3 + NH4+) as N (μg/L)289.05165.65<0.6145711408421<145----------
(Phenate)Ammonia Nitrogen (NH3) as N (un-ionized)(μg/L)2442-42141315<PQL<PQL----------
Nitrate + Nitrite (NO3 + NO2) as N (mg/L)<0.070.38<0.0700.120.12<0.14<0.06<0.4--0.120.54------
TN:TP ratio-----------1520------
pH8.58.78.68.68.48.38.58.38.3--8.48.5------
Alkalinity as CaCO3 (mg/L)131146126134143149141170181--157135------
Silica as Si (mg/L)-------------------
Dissolved Organic Carbon (mg/L)28.1325.1829.7027.6714.8954.876<7.6--16.943.38------
Inorganic Suspended Solids (mg/L)3925162725194270<5--56------
Volatile Suspended Solids (mg/L)1621161813131921<8--76------
Total Suspended Solids (mg/L)55463244383261917--1212------
Carlson Trophic State Index (Secchi)*807778797874798556--6258------
Carlson Trophic State Index (Chl a)*787560746766636956--6156------
Carlson Trophic State Index (TP)*807673777371747966--6462------
*Index values generally range between 0 and 100, with increasing values indicating more eutrophic conditions.
       
 
 
 
Water Column Profiles
5/17/20166/28/20168/17/2016

Contact Limnology Laboratory, Iowa State University