Table 3: Comparative costs of alternatives evaluated

* In fact, sediment mitigation costs were found to be much lower than originally anticipated

Refurbishment and continued operation Partial removal Full removal
Total Cost (US$1999) Engineering/environmental mitigation costs(%) Total cost (US$1999) Engineering/environmental mitigation costs(%) Total cost (US$1999) Engineering/environmental mitigation costs (%) Sediment mitigation costs (%)
269,000 10 170,000 19 300,000 35 42*