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Report Year: 2016
Mariposa Lake, Jasper County
Summary Data Table
Parameter6/20/20168/8/20169/20/20162016201520142013201220112010200920072006200520042003200220012000
Lake Depth (m)3.12.92.52.82.92.92.82.02.93.13.03.33.13.33.42.93.03.63.6
Thermocline Depth (m)2.2NilNilN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Secchi Disk Depth (m)1.10.70.80.80.50.50.70.20.50.40.40.30.30.30.30.50.30.50.3
Temperature(oC)28.725.522.425.522.522.022.922.222.723.622.626.425.725.122.424.826.322.324.7
Dissolved Oxygen (mg/L)7.96.610.78.48.07.510.27.18.412.38.110.311.511.311.610.19.49.57.3
Dissolved Oxygen Saturation (%)10281123102.191.585.2119.980.795.4145.793.6128.6141.7138.0133.3122.3116.8103.587.4
Specific Conductivity (μS/cm)380.0340.0280.0333.3320.0286.7273.3326.7336.7316.7336.7304.1316.0326.4289.9301.4330.0303.1304.9
Turbidity (NTU)8.812.79.810.424.034.123.171.757.424.842.040.740.594.395.950.668.924.453.3
Chlorophyll a (μg/L)22.054.838.838.554.853.239.291.866.945.248.054.954.1150.2144.434.191.465.363.9
Total Phosphorus as P (μg/L)90.1219.7281.2197.0149189179.1326.1153.0135.6199.193108116160194175144-
SRP as P (μg/L)5.443.279.842.8<4.346.765.985.311.1<830.2<1<1<14.87.84.0--
TKN (mg/L)0.821.561.651.341.821.651.642.975.182.25---------
Total Dissolved Solids (g/L)0.30.20.20.20.20.20.20.20.2----------
Total Nitrogen as N (mg/L)----------2.03.082.553.644.483.931.363.892.66
(Phenate)Ammonia Nitrogen (NH3 + NH4+) as N (μg/L)4.7013.4084.753472<2643<14<145137204--------
(Phenate)Ammonia Nitrogen (NH3) as N (un-ionized)(μg/L)1212542<PRL<PQL<PQL<PQL<130--------
Nitrate + Nitrite (NO3 + NO2) as N (mg/L)<0.07<0.07<0.07<0.070.670.121<0.0611-1.350.871.932.081.880.442.291.28
TN:TP ratio----------133324383133949-
pH8.48.48.58.48.08.68.98.78.68.08.18.68.69.09.18.89.38.57.8
Alkalinity as CaCO3 (mg/L)1691551231491351211161281361411391291241191037996114146
Silica as Si (mg/L)-------------6.736.474.094.59--
Dissolved Organic Carbon (mg/L)33.0436.2434.5034.5925.4476.7510<7.6<6.475.265.804.035.949.7812.57--
Inorganic Suspended Solids (mg/L)457571263819111912126211618912
Volatile Suspended Solids (mg/L)599812151338231216131712391929818
Total Suspended Solids (mg/L)9141513192719764223352529196036481730
Carlson Trophic State Index (Secchi)*59656463707066807072737677777671787077
Carlson Trophic State Index (Chl a)*61706666707067757268697070807965757271
Carlson Trophic State Index (TP)*698285807680798877758070727377807976-
*Index values generally range between 0 and 100, with increasing values indicating more eutrophic conditions.
       
 
 
 
Water Column Profiles
6/20/20168/8/20169/20/2016

Contact Limnology Laboratory, Iowa State University