Islands Trust Area Groundwater Recharge Potential Mapping Appendices, 2021

· Islands Trust Area · Reports & Publications · 2021

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Topics: Fresh water & aquifers · First Nations & reconciliation · Transportation & ferries · Governance & budget · Climate & environment — our classification, not the Trust's.

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October 18, 2021 
  Project No.20-18 
 
 
 
GW Solutions Inc. 
Suite 24 – 4800 Island Hwy, Nanaimo, BC, V9T 1W6 
Tel. (250) 756-4538   *   abarroso@gwsolutions.ca 
 
APPENDIX 2: Groundwater Management Regions 
 
Table 1. Groundwater management regions of the Study Islands 
Study Island 
Groundwater Region 
Name 
Groundwater 
Region ID 
Groundwater Region 
Area (km
2
) 
Total Area 
(km
2
) 
GW Region 
Count 
Denman Island 
BOYLE BL 2.38 
51.58 11 
HENRY HY 3.84 
HORNBY_1 H1 1.12 
HORNBY_2 H2 3.60 
KOMAS KS 8.32 
CENTRAL CL 11.14 
SOUTH SU 1.33 
DENMAN_1 D1 5.43 
DENMAN_2 D2 5.64 
GRAHAM LAKE GL 5.63 
The MADDIGAN MN 3.15 
Hornby Island 
Dunloo Point DP 6.97 
29.92 7 
Spray Point SY 6.10 
Shields Point SL 4.50 
Whaling Station Bay WS 4.09 
Maning Point MP 2.90 
Shingle Spit SS 2.90 
Norman Point NP 2.50 
Gabriola Island 
North Degnen Bay Region ND 2.22 
52.65 11 
West Degnen Bay WD 2.77 
Gabriola Region GR 12.30 
False Narrow Region FN 6.18 

Groundwater Recharge Potential Mapping for Study Islands  October 18, 2021  
   
 
Page 2 of 10  
Project No.20-18 
 
 
Study Island 
Groundwater Region 
Name 
Groundwater 
Region ID 
Groundwater Region 
Area (km
2
) 
Total Area 
(km
2
) 
GW Region 
Count 
Lock Bay Region LB 8.30 
Hoggan Lake Region HL 9.02 
Sand Region SR 3.65 
Descanso Bay Region DB 3.03 
Northumberland Channel Region NC 1.22 
South Descanso Bay Region SD 1.74 
Silva Bay Region SB 2.22 
Galiano Island 
North Galiano Spanish Hills GAL01 2.29 
58.15 21 
Dionisio Point GAL02 1.73 
North Georgia Strait GAL03 1.46 
North Trincomali Channel GAL04 4.66 
West Galiano GAL05 1.92 
East Galiano GAL06 3.63 
Greig Creek GAL07 2.38 
Central Georgia Strait GAL08 3.36 
Quadra Hill East GAL09 3.15 
Quadra Hill West GAL10 5.04 
South Trincomali Channel GAL11 1.07 
Cook Cove GAL12 3.23 
Finlay Lake GAL13 3.32 
Montague Harbour GAL14 3.17 
Winstanley Point GAL15 0.62 
Sutil Mountain GAL16 2.11 
Georgeson Bay GAL17 1.90 
Matthews Point GAL18 0.53 
South Galiano GAL19 3.75 
Cain Peninsula GAL20 0.54 
Murchison- Whaler Bay GAL21 8.29 
South Pender I SP01 2.69 9.12 4 

Groundwater Recharge Potential Mapping for Study Islands  October 18, 2021  
   
 
Page 3 of 10  
Project No.20-18 
 
 
Study Island 
Groundwater Region 
Name 
Groundwater 
Region ID 
Groundwater Region 
Area (km
2
) 
Total Area 
(km
2
) 
GW Region 
Count 
South Pender 
Island 
South Pender II SP02 3.80 
South Pender III SP03 0.48 
South Pender IV SP04 2.15 
North Pender 
Island 
North Pender I NP01 2.65 
27.09 8 
North Pender II NP02 7.95 
North Pender III NP03 2.34 
North Pender IV NP04 6.15 
North Pender V NP05 0.23 
North Pender VI NP06 2.00 
North Pender VII NP07 4.33 
North Pender VIII NP08 1.44 
Saturna Island 
Boot Cove SAT01 2.66 
34.25 5 
Brown Ridge SAT02 6.70 
Lyall Harbour SAT03 10.39 
Narvaez Bay SAT04 5.94 
Tumbo Channel SAT05 6.56 
Mayne Island 
Navy Channel Westside MAY06 3.00 
23.36 7 
Navy Channel_Eastside MAY07 0.86 
Center1_East MAY02 4.28 
Center1_West MAY03 3.91 
Center2_East M

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