| Water Quality - Excessive Sediment in Surface Water | $126,076 |
| Water Quality - Excess Pathogens and Chemicals from Manure, Bio-solids or Compost Applications in Surface Water | $98,140 |
| Water Quality - Nutrients in Surface water | $54,304 |
| Water Quality - Pesticides in Surface Water | $45,005 |
| Water Quality - Petroleum, Heavy Metals and Other Pollutants Transported to Surface Water | $31,785 |
| Water Quality - Salts in Surface Water | $12,781 |
| Water Quality - Elevated Water Temperature | $11,086 |
| Water Quality - Pesticides in Groundwater | $7,701 |
| Water Quality - Nutrients in Groundwater | $7,487 |
| Water Quality - Excess Pathogens and Chemicals from Manure, Bio-solids or Compost Applications in Groundwater | $4,948 |
| Water Quality - Petroleum, Heavy Metals and Other Pollutants Transported to Groundwater | $662 |
Fooling Ourselves
Boondoggle:
Iowa's Low Hanging Fruit:
Washout Revisited:
Broken Stream Banks:
Pumped up: