LIST OF TABLES 



Table 3.1. Location of sampling stations 13 



Table 4.1. Toxicity of porewater to Ceriodaphnia dubi'a 30 



Table 4.2. Results of treating sediment porewater 1990 31 



Table 4.3. Toxicity and ammonia concentrations 33 



Table 4.4. Results of treating sediment porewater 1991 34 



Table 4.5. Results of treating sediment porewater with zeolite... 35 



Table 4.6. Toxicity of sediment porewater 37 



Table 4.7. Toxicity of extracts from sediment porewater 38 



Table 4.8. Constituents of elutriates 39 



