Using the lagoon cost figure in Table 2-8 and the effectiveness estimates in Table

2-4, we can now estimate the cost-effectiveness of lagoon cost-sharing relative to

nutrient losses from excess application of wastes. This process is complicated by

the fact that we have measured the effectiveness of lagoons in terms of nutrient

hectare *of land application *while we have measured lagoon costs in

dollars *per cubic foot of lagoon. * is therefore necessary to convert the cost

figures to be based on equivalent area of land application. The following equation

was used to convert the cost figures:

As would be expected, the parameters in the above equation are different for

swine and poultry. Table 2-9 summarizes these figures and the per- hectare cost

results for lagoons. Calculation details are presented in Appendix 6.

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