According to the DFO’s bivalve shellfish biotoxin notice, Area 4 and 5 are closed for all bivalve molluscs.
Area 4 (Northern Part of Porcher Island)
| Area | Biotoxin Closure | Sanitary Closure |
| 4-2.B (Welcome Harbour) | Closed for All Bivalve | |
| 4-3 (Oval Bay, West side of Porcher Island) | Closed for All Bivalve | |
| 4-4 (Edye Passage) | Closed for All Bivalve | |
| 4-9.B (Refuge Bay and Hunt Inlet) | Closed for All Bivalve | Closed (Hunt Inlet) |
| 4-12 (Chismore Passage and Kelp Passage) | Closed for All Bivalve | Closed (Humpback Bay) |
Area 5 (Southern Part of Porcher Island)
| Area | Biotoxin Closure | Sanitary Closure |
| 5-2 (Ogden Channel) | Closed for All Bivalve | |
| 5-3 (Kitkatla Channel) | Closed for All Bivalve | Closed (Kitkatla) |
| 5-4 (Kitkatla Inlet) | Closed for All Bivalve | |
| 5-5, 6, 7, 8 (Gurd Inlet) | Closed for All Bivalve | |
| 5-9 (Porcher Inlet) | Closed for All Bivalve | |
| 5-10 (Dolphin Island and Spicer Island) | Closed for All Bivalve | Closed (Kitkatla) |
| 5-11 (Southern Shore of Goschen Island) | Closed for All Bivalve | |
| 5-12 (Freeman Passage) | Closed for All Bivalve |