THE Port of Tacoma has completed preliminary work and obtained permits for a 50-acre container terminal - the West Blair Terminal. This facility could be expanded to 100 acres and will also have a 4,000-foot intermodal rail yard. 'This has the potential to be one of the premier container terminals on the West Coast,' said John Terpstra, executive director of the Port of Tacoma. The port is marketing the terminal and can complete the project within 18 months of a commitment from a customer. The port handled 1.02 million teus last year, compared with 1.07 million teus in 1993. Last year's 4.3 per cent decline was largely the product of a Teamsters Union's strike at the Sea-Land Terminal in April. However, during the second half of 1994 the port saw a moderate growth trend and throughput projection is 1.07 million teus for this year.