| Whole Effluent Toxicity Test Results (December 2011) | |
| Test Species | Measured LC50 / NOEC |
| Amphipod - Melita longidactyla | 46.90% |
| Fish - Lutjanus malabaricus | 70.30% |
| Barnacle larvae - Balanus amphitrite | 30.50% |
| Shrimp - Metapenaeus ensis | 50.60% |
| Diatom - Skeletonema costatum | 2.5% (NOEC) |