| Whole Effluent Toxicity Test Results (April 2012) | |
| Test Species | Measured LC50 / NOEC |
| Amphipod - Melita longidactyla | 34.60% |
| Fish - Lutjanus malabaricus | 69.10% |
| Barnacle larvae - Balanus amphitrite | 27.40% |
| Shrimp - Metapenaeus ensis | 44.20% |
| Diatom - Skeletonema costatum | 2.5% (NOEC) |