LIST OF TABLES

 

 

CHAPTER 1

 

TABLE   1.      Itemized summary of 1991-1992 recreational activities at Clear Lake, from Bachmann et al. (1994). 

                        

TABLE   2.      Total visits and camping activities at Clear Lake State Park and McIntosh Woods State Park, 1996-2000.  

 

TABLE   3.      Comparison of 2000 recreational use of Clear Lake’s state parks with other state parks within an 80 km radius (Jim Scheffler, IDNR, pers. comm.).

 

TABLE   4.      Comparison of 1991-1992 recreational use of Clear Lake with other lakes within an 80 km radius. 

 

TABLE   5.      Itemized summary of 1994-2001 hotel/motel tax receipts and calculated annual impact of tourism for Clear Lake. 

 

CHAPTER 2

 

TABLE   1.      Average number of trips by time period.

 

TABLE   2.      Average number of trips taken to other lakes and reservoirs.

 

CHAPTER 3

 

TABLE   1.      Statistics for original flux measurements.

 

TABLE   2.      Descriptive statistics using adjusted 1999 flux measurements.

 

TABLE   3.      Estimates of groundwater discharge to Clear Lake based on seepage meter data.

 

TABLE   4.      Values of groundwater discharge estimated from Darcy’s Law.

 

TABLE   5.      Comparison of groundwater discharge values estimated by the three methods.

 

CHAPTER 5

 

TABLE   1.      Summary of historical nutrient data collected on Clear Lake.

 

TABLE   2.      Summary table of measurements made on all Clear Lake sampling stations during the diagnostic study, July 1998 - September 2000. 

 

TABLE   3.      Summary table of measurements made on the Little Lake Site in Clear Lake during the diagnostic study between July 1998 and September 2000. 

 

TABLE   4.      Summary table of measurements made on the Central Lake Site in Clear Lake during the diagnostic study between July 1998 and September 2000. 

 

TABLE   5.      Summary table of measurements made on the East Lake Site in Clear Lake during the diagnostic study between July 1998 and September 2000. 

 

TABLE   6.      Summary table of summer measurements made on Clear Lake during study period (1998-2000), during the 1990 and 2000 state lake surveys, and on all Iowa lakes during the 1990 and 2000 state lake surveys.

 

TABLE   7.      Fraction of total biomass composed of different algae taxa in Clear Lake, Iowa, during 1999 and 2000. 

 

TABLE   8.      Hydraulic budget for Clear Lake.

 

TABLE   9.      Tabular representation of the usual changes in aquatic ecosystems corresponding with alterations in the phosphorus concentrations of freshwater lakes.

 

CHAPTER 6

 

TABLE   1.      Analytical results from tests of water collected from thirty storm drain sites in the City of Clear Lake, Iowa, on September 23, 1998. 

 

CHAPTER 7

 

TABLE   1.      The area (m2) of the bottom subject to wave velocities capable of resuspension and the total % of the bottom capable of resuspension and, for the prevailing wind axis (*), the % bottom capable of resuspending particles of increasing diameters. 

 

CHAPTER 8

 

TABLE   1.      Statistics for original flux measurements. 

 

TABLE   2.      Descriptive statistics using adjusted 1999 flux measurements.

 

TABLE   3.      Estimates of groundwater discharge to Clear Lake based on seepage meter data.

 

TABLE   4.      Values of groundwater discharge estimated from Darcy’s Law.

 

TABLE   5.      Comparison of groundwater discharge values estimated by the three methods.

 

TABLE   6.      Statistics for Total P, Total N, and SiO2 concentrations in groundwater from 32 piezometers.

TABLE   7.      Summary calculations of nutrient and contaminant load to Clear Lake.

 

CHAPTER 9

 

TABLE   1.      Results of gill netting surveys on Ventura Marsh. 

 

CHAPTER 10

 

TABLE   1.      Summary table of measurements made on all tributaries to Clear Lake during the diagnostic study, July 1998 - September 2000.

 

TABLE   2.      Summary table of measurements made on individual tributaries to Clear Lake during the diagnostic study, July 1998 - September 2000. 

 

TABLE   3.      Summary table of measurements made on the northwestern tributary (sites 12-17), during the diagnostic study, July 1998 - September 2000. 

 

TABLE   4.      Summary table of measurements made on tributaries to Ventura Marsh (sites 19, 20) during the diagnostic study, July 1998 - September 2000. 

 

TABLE   5.      Summary table of measurements made at the outfall of Ventura Marsh (site 18) to Clear Lake during the diagnostic study, July 1998 - September 2000. 

 

TABLE   6.      Summary table of measurements made on urban storm drains to Clear Lake during the diagnostic study, July 1998 - September 2000. 

 

TABLE   7.      Results of tributary caffeine analyses during the diagnostic study, July 1998 - September 2000. 

 

TABLE   8.      1998-1999 nutrient and sediment influx and efflux from Clear Lake.

 

TABLE   9.      1999-2000 nutrient and sediment influx and efflux from Clear Lake.

 

TABLE  10.     1998-1999 nutrient and sediment loading from different areas of the Clear Lake watershed.

 

TABLE  11.     1999-2000 nutrient and sediment loading from different areas of the Clear Lake watershed.

 

TABLE  12.     Annual lake loading and watershed loss of selected nutrients for Clear Lake.

 

TABLE  13.     Comparison of phosphorus and nitrogen loadings among Iowa natural lakes.

 

TABLE  14.     1999 subbasin nutrient and sediment loss from different area in the Clear Lake watershed.

 

TABLE  15.     2000 subbasin nutrient and sediment loss from different area in the Clear Lake watershed.

 

TABLE  16.     Land use characteristics of Clear Lake watershed drainage basin.

 

TABLE  17.     Selected input parameters for AGNPS modeling.

 

TABLE  18.     Calculated sediment and nutrient inputs to Clear Lake from single storm event modeling present conditions.

 

CHAPTER 11

 

TABLE   1.      Summary of the field history information.

 

TABLE   2.      Amount of P extracted by five soil P tests and soil pH for 332 soil samples collected throughout the Clear Lake watershed.

 

TABLE   3.      Correlation coefficients between amounts of P extracted by five soil P tests from 332 soil samples collected throughout the Clear Lake watershed.

 

CHAPTER 13

 

TABLE   1.      Criteria for chemical constituents, for water with Class B (LW) use designations.

 

TABLE   2.      Criteria for ammonia nitrogen, for warm water streams and lakes.

 

TABLE   3.      Substances of concern in lake water and sediment elutriate water.

 

CHAPTER 14

 

TABLE   1.      Calculated sediment and nutrient inputs to Clear Lake following a two-inch rain event.

 

TABLE   2.      Results from the Wisconsin Lake Modeling Suite 3.1.1.

 

TABLE   3.      Estimated sizes and phosphorus reduction capacity (from PONDNET) for nutrient retention wetlands in the Clear Lake watershed.

 

TABLE   4.      Suggested activities for lake restoration.

 

TABLE   5.      Preliminary estimate of the total cost of lake restoration.

 

TABLE   6.      Estimated costs of land purchased, site preparation, vegetative plantings, and water control structure for nutrient retention wetlands in the Clear Lake watershed.