PlaceDossier / BC places / Aquifers / Rankings
Aquifers with the highest well yields
Median tested yield of the water-supply wells linked to each aquifer, aquifers with at least 10 tested. 542 aquifers ranked.
- 1Aquifer 146: West and northwest side of Williams Lake1,552 L/min 12 wells tested
- 2Aquifer 135: Semlin Valley946 L/min 13 wells tested
- 3Aquifer 1245: Beaver Cove852 L/min 12 wells tested
- 4Aquifer 289: Westwold757 L/min 81 wells tested
- 5Aquifer 352: Coldstream757 L/min 13 wells tested
- 6Aquifer 822: Logan Lake / SW of Kamloops757 L/min 11 wells tested
- 7Aquifer 193: Osoyoos West681 L/min 21 wells tested
- 8Aquifer 344: Ellison Lake to Wood Lake662 L/min 18 wells tested
- 9Aquifer 158: Grand Forks485 L/min 77 wells tested
- 10Aquifer 4: Aggasiz379 L/min 35 wells tested
- 11Aquifer 6: Chilliwack-Rosedale379 L/min 201 wells tested
- 12Aquifer 133: Cache Creek to Scottie Creek379 L/min 15 wells tested
- 13Aquifer 186: Lower Cowichan River A379 L/min 77 wells tested
- 14Aquifer 264: Okanagan Falls and east of Okanagan Falls379 L/min 28 wells tested
- 15Aquifer 935: Keremeos Creek Valley379 L/min 29 wells tested
- 16Aquifer 726: Canford303 L/min 16 wells tested
- 17Aquifer 254: Osoyoos Lake to southwest of Tug Lake284 L/min 47 wells tested
- 18Aquifer 314: Lumby - Lower Aquifer284 L/min 27 wells tested
- 19Aquifer 1150: O'Keefe Basal284 L/min 25 wells tested
- 20Aquifer 326: Pemberton265 L/min 10 wells tested
- 21Aquifer 8: Sardis-Vedder227 L/min 53 wells tested
- 22Aquifer 12: Nicomen Slough227 L/min 11 wells tested
- 23Aquifer 15: Abbotsford Shallow227 L/min 165 wells tested
- 24Aquifer 21: Sumas Prairie227 L/min 26 wells tested
- 25Aquifer 259: Similkameen River Aquifer227 L/min 299 wells tested
- 26Aquifer 265: Between OK Falls and Vaseux Lk227 L/min 17 wells tested
- 27Aquifer 477: Kettle R., eastward from Rock Ck.227 L/min 30 wells tested
- 28Aquifer 1029: North of Princeton227 L/min 25 wells tested
- 29Aquifer 1153: Spallumcheen Confined227 L/min 154 wells tested
- 30Aquifer 102: Hullcar Confined Aquifer212 L/min 52 wells tested
- 31Aquifer 236: Chase208 L/min 16 wells tested
- 32Aquifer 28: Northwest of Clearbrook189 L/min 132 wells tested
- 33Aquifer 98: Salmon River - Lower Aquifer189 L/min 38 wells tested
- 34Aquifer 234: Squilax189 L/min 14 wells tested
- 35Aquifer 255: North of Tug Lake to Vaseux Lake189 L/min 116 wells tested
- 36Aquifer 257: Meyers Flat189 L/min 53 wells tested
- 37Aquifer 302: Powers Ck Deltaic189 L/min 44 wells tested
- 38Aquifer 306: East of Westbank, parallel to Mt. Boucher189 L/min 17 wells tested
- 39Aquifer 310: Creighton189 L/min 24 wells tested
- 40Aquifer 353: Eagle Rock Aquifer189 L/min 29 wells tested
- 41Aquifer 464: Greater Kelowna Aquifer189 L/min 132 wells tested
- 42Aquifer 566: East Sechelt Delta189 L/min 11 wells tested
- 43Aquifer 1233: South of Aldergrove189 L/min 29 wells tested
- 44Aquifer 299: Fauder (Meadow Valley)174 L/min 12 wells tested
- 45Aquifer 228: Celista170 L/min 10 wells tested
- 46Aquifer 1025: Allison Lake170 L/min 12 wells tested
- 47Aquifer 345: Oyama161 L/min 16 wells tested
- 48Aquifer 1: Floods; Harrison; Hope151 L/min 36 wells tested
- 49Aquifer 109: Tuhok Confined Aquifer151 L/min 23 wells tested
- 50Aquifer 482: Kettle river Valley near Beaverdell151 L/min 13 wells tested
- 51Aquifer 728: Cherry Cr valley; SW of Kamloops151 L/min 21 wells tested
- 52Aquifer 1163: Agate Aquifer151 L/min 10 wells tested
- 53Aquifer 864: Trepanier Cr. and Jack Cr, N of Peachland136 L/min 11 wells tested
- 54Aquifer 920: Clinton Creek Lower Unconsolidated136 L/min 17 wells tested
- 55Aquifer 14: Hatzic Prairie133 L/min 18 wells tested
- 56Aquifer 103: Hullcar Unconfined Aquifer133 L/min 27 wells tested
- 57Aquifer 134: Cache Creek to north of Maiden Creek133 L/min 11 wells tested
- 58Aquifer 229: Scotch Creek133 L/min 50 wells tested
- 59Aquifer 261: Marron Valley northwest of Okanagan Falls133 L/min 21 wells tested
- 60Aquifer 286: Lower South Thompson River133 L/min 16 wells tested
- 61Aquifer 889: N end of Hatzic Valley133 L/min 21 wells tested
- 62Aquifer 1010: Tulameen133 L/min 25 wells tested
- 63Aquifer 1176: Fraser Canyon, Choate to Yale133 L/min 23 wells tested
- 64Aquifer 194: Osoyoos East123 L/min 12 wells tested
- 65Aquifer 356: Mouth of Deep Creek123 L/min 10 wells tested
- 66Aquifer 97: Salmon River - Upper Aquifer121 L/min 101 wells tested
- 67Aquifer 20: Columbia Valley114 L/min 41 wells tested
- 68Aquifer 256: Testalinden Creek to Reed Creek114 L/min 11 wells tested
- 69Aquifer 316: Lumby - Upper Aquifer114 L/min 109 wells tested
- 70Aquifer 348: Swan Lake Confined Aquifer114 L/min 18 wells tested
- 71Aquifer 385: 4.5 km. sw of McKenzie114 L/min 24 wells tested
- 72Aquifer 478: Midway114 L/min 19 wells tested
- 73Aquifer 496: Salmo River Overburden114 L/min 121 wells tested
- 74Aquifer 501: Castlegar Overburden114 L/min 77 wells tested
- 75Aquifer 543: Skookumchuk S.114 L/min 10 wells tested
- 76Aquifer 777: Deadman Valley NW of Kamloops114 L/min 13 wells tested
- 77Aquifer 1073: West side of Koocanusa Lake114 L/min 17 wells tested
- 78Aquifer 1125: Lemon Creek114 L/min 11 wells tested
- 79Aquifer 1128: Village of Nakusp114 L/min 21 wells tested
- 80Aquifer 1141: Kootenay and St. mary Rivers114 L/min 24 wells tested
- 81Aquifer 1225: Lower Shuswap River Confined114 L/min 14 wells tested
- 82Aquifer 1228: O Avenue Aquifer114 L/min 19 wells tested
- 83Aquifer 1157: Hullcar Perched114 L/min 10 wells tested
- 84Aquifer 1116: Rosebery106 L/min 25 wells tested
- 85Aquifer 9: Chilliwack River Shallow104 L/min 24 wells tested
- 86Aquifer 219: Nanoose Creek104 L/min 24 wells tested
- 87Aquifer 296: Little Fort104 L/min 12 wells tested
- 88Aquifer 575: Terrace - South104 L/min 12 wells tested
- 89Aquifer 1174: Stump Lake104 L/min 10 wells tested
- 90Aquifer 1296: Aldergrove Shallow104 L/min 14 wells tested
- 91Aquifer 810: East of Osoyoos102 L/min 39 wells tested
- 92Aquifer 370: Area west of Quesnel98.4 L/min 15 wells tested
- 93Aquifer 144: Southeast side of Williams Lake96.5 L/min 10 wells tested
- 94Aquifer 462: Bellevue fan aquifer96.5 L/min 42 wells tested
- 95Aquifer 100: Gleneden94.6 L/min 39 wells tested
- 96Aquifer 111: Spallumcheen Unconfined Aquifer94.6 L/min 74 wells tested
- 97Aquifer 172: Chemainus and Crofton94.6 L/min 13 wells tested
- 98Aquifer 190: Youbou94.6 L/min 12 wells tested
- 99Aquifer 283: North Thompson River north of Kamloops94.6 L/min 59 wells tested
- 100Aquifer 311: Upper Cherryville94.6 L/min 15 wells tested
- 101Aquifer 424: Bridge Lake Aquifer System94.6 L/min 39 wells tested
- 102Aquifer 487: Creston-Kootenay River Overburden94.6 L/min 71 wells tested
- 103Aquifer 502: Robson, N of Columbia R. & W of Castlegar94.6 L/min 12 wells tested
- 104Aquifer 664: Little Qualicum River94.6 L/min 22 wells tested
- 105Aquifer 811: North of Grand Forks94.6 L/min 14 wells tested
- 106Aquifer 993: Longbeach to Harrop Point, BC94.6 L/min 15 wells tested
- 107Aquifer 1193: Aldergrove Quadra94.6 L/min 33 wells tested
- 108Aquifer 1206: Chilliwack River Subtill94.6 L/min 44 wells tested
- 109Aquifer 1191: Central Kelowna Aquifer92.7 L/min 48 wells tested
- 110Aquifer 516: Willow Point87.1 L/min 11 wells tested
- 111Aquifer 160: Lower Cassidy85.2 L/min 22 wells tested
- 112Aquifer 659: Upper Bulkley Alluvial85.2 L/min 18 wells tested
- 113Aquifer 1194: Salmon River85.2 L/min 16 wells tested
- 114Aquifer 92: Lower Nechako River83.3 L/min 226 wells tested
- 115Aquifer 24: Glen Valley75.7 L/min 37 wells tested
- 116Aquifer 25: Miracle Valley75.7 L/min 74 wells tested
- 117Aquifer 27: Aldergrove AB75.7 L/min 178 wells tested
- 118Aquifer 53: Hazelmere Valley75.7 L/min 28 wells tested
- 119Aquifer 83: 10 kilometres northeast of Prince Georg75.7 L/min 26 wells tested
- 120Aquifer 161: Cassidy75.7 L/min 114 wells tested
- 121Aquifer 191: North Lake Cowichan75.7 L/min 31 wells tested
- 122Aquifer 225: Sicamous (Mara Lake)75.7 L/min 10 wells tested
- 123Aquifer 231: Sunnybrae75.7 L/min 10 wells tested
- 124Aquifer 232: Tappen75.7 L/min 57 wells tested
- 125Aquifer 293: North Thompson River; north of Barriere75.7 L/min 15 wells tested
- 126Aquifer 307: Eagle River75.7 L/min 50 wells tested
- 127Aquifer 318: Bessette Creek75.7 L/min 52 wells tested
- 128Aquifer 332: Prince George75.7 L/min 24 wells tested
- 129Aquifer 467: Mission Creek Aquifer75.7 L/min 75 wells tested
- 130Aquifer 492: Yahk75.7 L/min 13 wells tested
- 131Aquifer 519: Baynes Lake - East 175.7 L/min 65 wells tested
- 132Aquifer 521: Jaffray75.7 L/min 26 wells tested
- 133Aquifer 570: Terrace - SE; Jack Pine Flats75.7 L/min 97 wells tested
- 134Aquifer 571: E. of Terrace - Thornhill; E. of River75.7 L/min 25 wells tested
- 135Aquifer 585: Smithers - South; W. side of Bulkley River75.7 L/min 15 wells tested
- 136Aquifer 639: NW of Rose Prarie; N. of Blueberry R.75.7 L/min 59 wells tested
- 137Aquifer 788: SW of Terrace, northshore of Skeena River75.7 L/min 12 wells tested
- 138Aquifer 826: Nivek75.7 L/min 12 wells tested
- 139Aquifer 931: E. of Blueberry River, N. of Fort St John75.7 L/min 19 wells tested
- 140Aquifer 936: East of Osoyoos, Anarchist Mountain75.7 L/min 153 wells tested
- 141Aquifer 991: Harrop, BC75.7 L/min 23 wells tested
- 142Aquifer 1002: Rawlings Lake75.7 L/min 65 wells tested
- 143Aquifer 1028: Confluence of Hayes and Siwash Creeks75.7 L/min 20 wells tested
- 144Aquifer 1055: Salmon River Valley at Stowe Creek75.7 L/min 12 wells tested
- 145Aquifer 1098: East of Englishman River75.7 L/min 113 wells tested
- 146Aquifer 1117: Glade Overburden75.7 L/min 354 wells tested
- 147Aquifer 1126: Village of Slocan75.7 L/min 15 wells tested
- 148Aquifer 1149: Ashton Creek Unconfined75.7 L/min 26 wells tested
- 149Aquifer 1159: Lower Cherryville75.7 L/min 45 wells tested
- 150Aquifer 1168: Middle Merritt75.7 L/min 11 wells tested
- 151Aquifer 1182: Masset75.7 L/min 15 wells tested
- 152Aquifer 1265: Sheridan Lake75.7 L/min 19 wells tested
- 153Aquifer 1284: Beaver Creek Overburden75.7 L/min 44 wells tested
- 154Aquifer 1297: Abbotsford Shallow West75.7 L/min 72 wells tested
- 155Aquifer 94: Hart Highlands71.9 L/min 28 wells tested
- 156Aquifer 131: Watson Creek Valley Aquifer System71.9 L/min 36 wells tested
- 157Aquifer 426: Bradley Creek Valley Aquifer System71.9 L/min 22 wells tested
- 158Aquifer 812: North of Grand Forks71.9 L/min 10 wells tested
- 159Aquifer 86: Pineview68.1 L/min 98 wells tested
- 160Aquifer 129: Southern Horse Lake Aquifer System68.1 L/min 26 wells tested
- 161Aquifer 130: Upper Bridge Creek Valley Aquifer System68.1 L/min 143 wells tested
- 162Aquifer 139: Missioner Creek Valley68.1 L/min 36 wells tested
- 163Aquifer 246: South Vanderhoof Unconsolidated68.1 L/min 112 wells tested
- 164Aquifer 416: Thames River to Maplegaurd Point68.1 L/min 39 wells tested
- 165Aquifer 91: Northwest of Beaverley66.2 L/min 12 wells tested
- 166Aquifer 910: East Williston Lake66.2 L/min 10 wells tested
- 167Aquifer 347: South Vernon Confined Aquifer63.2 L/min 18 wells tested
- 168Aquifer 1269: Northern Halfway Beatton Bedrock62.5 L/min 26 wells tested
- 169Aquifer 489: Canyon Overburden60.6 L/min 55 wells tested
- 170Aquifer 793: East shore of Lakelse Lake60.6 L/min 14 wells tested
- 171Aquifer 1223: Sandspit - Haida Gwaii60 L/min 11 wells tested
- 172Aquifer 33: West of Aldergrove58.7 L/min 582 wells tested
- 173Aquifer 32: Beaver River56.8 L/min 63 wells tested
- 174Aquifer 50: South of Hopington56.8 L/min 116 wells tested
- 175Aquifer 52: Langley Upland Intertill56.8 L/min 52 wells tested
- 176Aquifer 90: Beaverley56.8 L/min 132 wells tested
- 177Aquifer 128: Lower Bridge Creek Valley Aquifer System56.8 L/min 82 wells tested
- 178Aquifer 185: Deerholm, South Duncan56.8 L/min 45 wells tested
- 179Aquifer 222: Sorrento / Notch Hill56.8 L/min 11 wells tested
- 180Aquifer 242: Nechako Buried Valley56.8 L/min 191 wells tested
- 181Aquifer 249: Duck Range / Pritchard / Monte Lake56.8 L/min 13 wells tested
- 182Aquifer 292: Louis Creek and North Thompson confluence56.8 L/min 11 wells tested
- 183Aquifer 319: Trinity Valley56.8 L/min 83 wells tested
- 184Aquifer 412: Oyster River56.8 L/min 25 wells tested
- 185Aquifer 491: Southern area of the Moyie R.56.8 L/min 11 wells tested
- 186Aquifer 520: Baynes Lake - East 256.8 L/min 50 wells tested
- 187Aquifer 532: Elk River56.8 L/min 58 wells tested
- 188Aquifer 573: Terrace - North56.8 L/min 94 wells tested
- 189Aquifer 828: Dease Lake56.8 L/min 19 wells tested
- 190Aquifer 884: Northshore Hayward Lake to Stave Lake56.8 L/min 78 wells tested
- 191Aquifer 888: Steelhead Valley56.8 L/min 27 wells tested
- 192Aquifer 1044: 18 km southeast of Golden56.8 L/min 10 wells tested
- 193Aquifer 1145: northeast of Terrace56.8 L/min 26 wells tested
- 194Aquifer 1161: Falkland Perched56.8 L/min 17 wells tested
- 195Aquifer 1192: Aldergrove CD56.8 L/min 62 wells tested
- 196Aquifer 1230: Border B56.8 L/min 53 wells tested
- 197Aquifer 1234: Sperling56.8 L/min 21 wells tested
- 198Aquifer 1279: Kitchener Creek Overburden56.8 L/min 52 wells tested
- 199Aquifer 1287: Paldi - Deep56.8 L/min 19 wells tested
- 200Aquifer 599: Sooke R floodplain, west to Kemp Lk54.9 L/min 29 wells tested
- 201Aquifer 590: Groundbirch Buried Valley53 L/min 16 wells tested
- 202Aquifer 1270: Montney Halfway Beatton Bedrock53 L/min 41 wells tested
- 203Aquifer 1274: Blueberry-Aitken Bedrock53 L/min 10 wells tested
- 204Aquifer 603: Invermere 3km N and S51.1 L/min 56 wells tested
- 205Aquifer 1231: Campbell River A51.1 L/min 18 wells tested
- 206Aquifer 540: Wasa Lake49.2 L/min 44 wells tested
- 207Aquifer 900: Malcolm Island49.2 L/min 36 wells tested
- 208Aquifer 57: White Rock47.3 L/min 24 wells tested
- 209Aquifer 668: Stellako Unconsolidated47.3 L/min 10 wells tested
- 210Aquifer 1090: South of Hosmer47.3 L/min 10 wells tested
- 211Aquifer 660: Bulkley Buried Channel46.2 L/min 24 wells tested
- 212Aquifer 51: Murrayville AC45.4 L/min 70 wells tested
- 213Aquifer 197: Cherry Point45.4 L/min 562 wells tested
- 214Aquifer 221: Parksville45.4 L/min 15 wells tested
- 215Aquifer 240: Sinkut Mountain North Surficial45.4 L/min 35 wells tested
- 216Aquifer 294: Lower Barriere River Valley45.4 L/min 13 wells tested
- 217Aquifer 384: 150 Mile House, B. C.45.4 L/min 85 wells tested
- 218Aquifer 423: Northern Lac la Hache Aquifer System45.4 L/min 27 wells tested
- 219Aquifer 449: West of Sooke at Orveas Bay45.4 L/min 56 wells tested
- 220Aquifer 528: Wardner45.4 L/min 48 wells tested
- 221Aquifer 949: East shore of Mesachie Lake45.4 L/min 22 wells tested
- 222Aquifer 984: West Arrow Creek Overburden45.4 L/min 43 wells tested
- 223Aquifer 1078: W side of Elk R Valley45.4 L/min 26 wells tested
- 224Aquifer 1249: North side of Little Qualicum River45.4 L/min 26 wells tested
- 225Aquifer 346: South Vernon Unconfined Aquifer44.7 L/min 26 wells tested
- 226Aquifer 75: Joeyaska Deep41.6 L/min 14 wells tested
- 227Aquifer 201: Heather Bank41.6 L/min 24 wells tested
- 228Aquifer 331: Prince George41.6 L/min 10 wells tested
- 229Aquifer 1240: Quadra Central Bedrock41.6 L/min 16 wells tested
- 230Aquifer 1283: Brilliant Bedrock41.6 L/min 16 wells tested
- 231Aquifer 382: Soda Cr. 26 km north of Williams Lake40.9 L/min 61 wells tested
- 232Aquifer 843: Cortes Island39.7 L/min 10 wells tested
- 233Aquifer 26: Kanaka/Whonnock Creek37.9 L/min 94 wells tested
- 234Aquifer 35: Hopington AB37.9 L/min 220 wells tested
- 235Aquifer 37: Fort Langley AC37.9 L/min 115 wells tested
- 236Aquifer 41: Brookswood37.9 L/min 183 wells tested
- 237Aquifer 59: Clayton Heights37.9 L/min 96 wells tested
- 238Aquifer 61: Newton Upland37.9 L/min 77 wells tested
- 239Aquifer 108: Tuhok Unconfined Aquifer37.9 L/min 80 wells tested
- 240Aquifer 151: Frost Creek37.9 L/min 21 wells tested
- 241Aquifer 152: South of Williams Lake on Dog Creek Road37.9 L/min 14 wells tested
- 242Aquifer 157: Fulford Aquifer37.9 L/min 13 wells tested
- 243Aquifer 178: Skutz Falls, Lake Cowichan, Paldi37.9 L/min 43 wells tested
- 244Aquifer 183: West Duncan37.9 L/min 24 wells tested
- 245Aquifer 189: Honeymoon Bay & Mesachie Lake37.9 L/min 19 wells tested
- 246Aquifer 192: North Lake Cowichan37.9 L/min 20 wells tested
- 247Aquifer 199: Fairbridge37.9 L/min 78 wells tested
- 248Aquifer 206: Mill Bay37.9 L/min 123 wells tested
- 249Aquifer 209: Errington; Morison Creek area37.9 L/min 47 wells tested
- 250Aquifer 215: Lantzville37.9 L/min 55 wells tested
- 251Aquifer 239: Fort Fraser Bedrock37.9 L/min 34 wells tested
- 252Aquifer 243: South Nechako Terrace Bedrock37.9 L/min 229 wells tested
- 253Aquifer 273: Rose Hill / Barnhartvale / Shumway Lake37.9 L/min 27 wells tested
- 254Aquifer 335: Hixon37.9 L/min 18 wells tested
- 255Aquifer 339: North of Prince George37.9 L/min 38 wells tested
- 256Aquifer 373: Rt. St. James at mouth of Stuart L37.9 L/min 14 wells tested
- 257Aquifer 408: Comox-Merville37.9 L/min 754 wells tested
- 258Aquifer 458: Fairmont Hotsprings; W. side of R.37.9 L/min 25 wells tested
- 259Aquifer 513: North Castlegar Bedrock37.9 L/min 310 wells tested
- 260Aquifer 523: Cranbrook S., B. R.37.9 L/min 113 wells tested
- 261Aquifer 524: Cranbrook37.9 L/min 32 wells tested
- 262Aquifer 525: Cranbrook - West St. Mary River37.9 L/min 81 wells tested
- 263Aquifer 526: Cranbrook - East37.9 L/min 45 wells tested
- 264Aquifer 527: Bull River37.9 L/min 11 wells tested
- 265Aquifer 536: Wycliffe37.9 L/min 146 wells tested
- 266Aquifer 559: Sakinaw Lake; Mixel Lake37.9 L/min 39 wells tested
- 267Aquifer 560: Gibsons/SCRD Granthams Landing/Elphinstone37.9 L/min 15 wells tested
- 268Aquifer 581: S of Telkwa & Bulkley R. confluence37.9 L/min 17 wells tested
- 269Aquifer 634: Taylor; S. of Peace River37.9 L/min 15 wells tested
- 270Aquifer 650: North Nechako Terrace Bedrock37.9 L/min 65 wells tested
- 271Aquifer 661: Spider Lk nr Horne Lk37.9 L/min 19 wells tested
- 272Aquifer 663: Upper reaches of Whisky Creek37.9 L/min 29 wells tested
- 273Aquifer 764: Port McNeill West Unconsolidated37.9 L/min 66 wells tested
- 274Aquifer 769: Clearwater North of Kamloops37.9 L/min 28 wells tested
- 275Aquifer 841: S Cortes Island37.9 L/min 18 wells tested
- 276Aquifer 881: NE of Mission City37.9 L/min 30 wells tested
- 277Aquifer 944: Jordan River to Uglow Creek, Vancouver37.9 L/min 72 wells tested
- 278Aquifer 970: South of Grant Hill37.9 L/min 10 wells tested
- 279Aquifer 999: North of Cranbrook37.9 L/min 11 wells tested
- 280Aquifer 1034: Cridland Creek Bedrock37.9 L/min 17 wells tested
- 281Aquifer 1047: 30 km southeast of Golden37.9 L/min 13 wells tested
- 282Aquifer 1057: Elko, west side of Elk River37.9 L/min 11 wells tested
- 283Aquifer 1069: East side of Lake Koocanusa37.9 L/min 21 wells tested
- 284Aquifer 1137: City of Kimberly and Kimberly Highway37.9 L/min 62 wells tested
- 285Aquifer 1144: Hopington C37.9 L/min 318 wells tested
- 286Aquifer 1166: Paul's Basin37.9 L/min 11 wells tested
- 287Aquifer 1180: Tlell37.9 L/min 15 wells tested
- 288Aquifer 1246: West Cluculz Lake Bedrock37.9 L/min 13 wells tested
- 289Aquifer 1250: Morningstar Creek to Grodon Creek37.9 L/min 59 wells tested
- 290Aquifer 1251: Between Qualicum River and Nile Creek37.9 L/min 34 wells tested
- 291Aquifer 1252: Between Englishman and River and Morrison Creek37.9 L/min 17 wells tested
- 292Aquifer 1271: Charlie Halfway Beatton Bedrock37.9 L/min 331 wells tested
- 293Aquifer 1278: Nelson Overburden37.9 L/min 17 wells tested
- 294Aquifer 260: Marron Valley northwest of Okanagan Falls36 L/min 36 wells tested
- 295Aquifer 584: Smithers - North; E. side of Bulkley River36 L/min 68 wells tested
- 296Aquifer 838: Powell River36 L/min 20 wells tested
- 297Aquifer 1014: Owl Ridge Aquifer35 L/min 10 wells tested
- 298Aquifer 55: Grandview34.1 L/min 18 wells tested
- 299Aquifer 217: Qualicum34.1 L/min 88 wells tested
- 300Aquifer 349: Northeast of Vernon along BX Creek34.1 L/min 54 wells tested
- 301Aquifer 622: South of Pouce Coupe34.1 L/min 19 wells tested
- 302Aquifer 1036: Columbia River Valley at Spillimacheen34.1 L/min 18 wells tested
- 303Aquifer 445: NW of Cranbrook; near Hospital Ck32.2 L/min 30 wells tested
- 304Aquifer 36: Fort Langley B30.3 L/min 11 wells tested
- 305Aquifer 85: West of south end of Tabor Lake30.3 L/min 59 wells tested
- 306Aquifer 104: 1 kilometre northwest of Hullcar30.3 L/min 10 wells tested
- 307Aquifer 216: Parksville30.3 L/min 172 wells tested
- 308Aquifer 269: Ellis Creek30.3 L/min 79 wells tested
- 309Aquifer 337: 111 Mile Creek Valley Aquifer System30.3 L/min 17 wells tested
- 310Aquifer 383: Dugan Lake, 7km north of 150 Mile House30.3 L/min 14 wells tested
- 311Aquifer 444: Fort St. John Overburden Aquifer System30.3 L/min 51 wells tested
- 312Aquifer 451: Central Halfway-Beatton Bedrock Aquifer30.3 L/min 115 wells tested
- 313Aquifer 493: Salmo River Bedrock30.3 L/min 110 wells tested
- 314Aquifer 511: Blewett Bedrock30.3 L/min 208 wells tested
- 315Aquifer 530: Rosen Lake - North30.3 L/min 18 wells tested
- 316Aquifer 537: Kimberley, B.R.30.3 L/min 60 wells tested
- 317Aquifer 591: East Pine - Groundbirch Bedrock Aquifer30.3 L/min 20 wells tested
- 318Aquifer 595: Sunset Prairie Bedrock Aquifer30.3 L/min 51 wells tested
- 319Aquifer 662: Between Big & Little Qualicum Rivers30.3 L/min 184 wells tested
- 320Aquifer 776: Egmont30.3 L/min 11 wells tested
- 321Aquifer 791: South of Terrace, near Terrace Airport30.3 L/min 13 wells tested
- 322Aquifer 807: N Thompson River30.3 L/min 14 wells tested
- 323Aquifer 834: Savary Island30.3 L/min 57 wells tested
- 324Aquifer 863: N Trepanier Creek Valley N of Peachland30.3 L/min 15 wells tested
- 325Aquifer 979: Quesnel, east side of the Fraser River30.3 L/min 92 wells tested
- 326Aquifer 995: Longbeach and Fraser30.3 L/min 13 wells tested
- 327Aquifer 998: Bednorski Lake30.3 L/min 11 wells tested
- 328Aquifer 1103: Silverdale30.3 L/min 40 wells tested
- 329Aquifer 1130: West of Invermere, south of Toby Creek30.3 L/min 19 wells tested
- 330Aquifer 1281: Trail/Warfield Bedrock29.3 L/min 76 wells tested
- 331Aquifer 577: E. of Smithers; E. side of Bulkley River28.4 L/min 12 wells tested
- 332Aquifer 799: Valemont28.4 L/min 11 wells tested
- 333Aquifer 880: Silverdale Cr, W of Mission City28.4 L/min 20 wells tested
- 334Aquifer 561: Kleindale27.3 L/min 27 wells tested
- 335Aquifer 138: Upper Missioner/Minton Creek Valleys26.5 L/min 52 wells tested
- 336Aquifer 149: Chimney Creek Valley26.5 L/min 12 wells tested
- 337Aquifer 180: Sahtlam26.5 L/min 45 wells tested
- 338Aquifer 363: NW of Quesnel and north of Bouchie Lake26.5 L/min 19 wells tested
- 339Aquifer 418: South bank at Oyster-Little R. confluence26.5 L/min 13 wells tested
- 340Aquifer 453: Windermere; E. side of Windermere LK.26.5 L/min 178 wells tested
- 341Aquifer 486: Montrose Bedrock26.5 L/min 75 wells tested
- 342Aquifer 552: Langdale/Hopkins26.5 L/min 25 wells tested
- 343Aquifer 612: Keating26.5 L/min 14 wells tested
- 344Aquifer 751: South Quadra Unconsolidated26.5 L/min 152 wells tested
- 345Aquifer 808: Anarchist Mountain26.5 L/min 84 wells tested
- 346Aquifer 928: Farrel Creek Bedrock Aquifer26.5 L/min 11 wells tested
- 347Aquifer 1024: Princeton26.5 L/min 79 wells tested
- 348Aquifer 1101: North Kanata Creek26.5 L/min 14 wells tested
- 349Aquifer 1280: West Creston26.5 L/min 95 wells tested
- 350Aquifer 441: Lynx Ck.; 7 km NE of Hudson Hope25.5 L/min 14 wells tested
- 351Aquifer 535: Cranbrook Northwest25.5 L/min 272 wells tested
- 352Aquifer 1110: Water Dog Lake to McCuddy Creek Road25.5 L/min 12 wells tested
- 353Aquifer 839: Powell River24.6 L/min 28 wells tested
- 354Aquifer 878: Wilmer24.6 L/min 21 wells tested
- 355Aquifer 1082: Sparwood24.6 L/min 10 wells tested
- 356Aquifer 1195: Murrayville B24.6 L/min 16 wells tested
- 357Aquifer 933: Cecil Lake, North Peace River23.7 L/min 24 wells tested
- 358Aquifer 58: Nicomekl-Serpentine22.7 L/min 148 wells tested
- 359Aquifer 84: North and west of Tabor Lake22.7 L/min 37 wells tested
- 360Aquifer 115: Northeast of Quesnel22.7 L/min 882 wells tested
- 361Aquifer 124: Fraser Plateau Lava22.7 L/min 146 wells tested
- 362Aquifer 143: Southwest side of Williams Lake22.7 L/min 33 wells tested
- 363Aquifer 147: Hill southwest of Williams Lake townsite22.7 L/min 17 wells tested
- 364Aquifer 177: East Duncan - Maple Bay22.7 L/min 37 wells tested
- 365Aquifer 298: Naramata22.7 L/min 116 wells tested
- 366Aquifer 361: East of Milburn Lake and nw of Quesnel22.7 L/min 11 wells tested
- 367Aquifer 365: NW of Quesnel and E shoreline of Bouchie L22.7 L/min 91 wells tested
- 368Aquifer 488: East Creston Bedrock22.7 L/min 306 wells tested
- 369Aquifer 529: Wardner22.7 L/min 50 wells tested
- 370Aquifer 593: Valley View - Dawson Creek Bedrock Aquifer22.7 L/min 25 wells tested
- 371Aquifer 633: Sweetwater Bedrock Aquifer22.7 L/min 10 wells tested
- 372Aquifer 678: S. & SW of Francois Lk.; W. of Fraser Lk.22.7 L/min 10 wells tested
- 373Aquifer 680: Wark-Colquitz22.7 L/min 736 wells tested
- 374Aquifer 681: Willis Point, SE side of Saanich Inlet22.7 L/min 123 wells tested
- 375Aquifer 763: Port McNeill West Bedrock22.7 L/min 15 wells tested
- 376Aquifer 932: Northwest Halfway-Beatton Bedrock22.7 L/min 44 wells tested
- 377Aquifer 1134: Wycliffe, North of St.Mary River22.7 L/min 12 wells tested
- 378Aquifer 1293: East of Comox Lake, south of Courtenay22.7 L/min 13 wells tested
- 379Aquifer 223: Celista21.8 L/min 30 wells tested
- 380Aquifer 125320.9 L/min 14 wells tested
- 381Aquifer 176: East Duncan - Maple Bay20.8 L/min 20 wells tested
- 382Aquifer 500: South Castlegar Bedrock20.8 L/min 58 wells tested
- 383Aquifer 1018: Crescent Bay20.8 L/min 10 wells tested
- 384Aquifer 1266: Lower Lac la Hache Valley Bedrock20.8 L/min 48 wells tested
- 385Aquifer 121: Kersley18.9 L/min 21 wells tested
- 386Aquifer 126: Upper Lac la Hache Valley Bedrock18.9 L/min 74 wells tested
- 387Aquifer 140: North side of lower Missioner Creek Valley18.9 L/min 27 wells tested
- 388Aquifer 141: Between Williams Lake and Missioner Creek18.9 L/min 70 wells tested
- 389Aquifer 142: Southwest side of Williams Lake18.9 L/min 33 wells tested
- 390Aquifer 148: Between Chimney Creek and Williams Lake18.9 L/min 229 wells tested
- 391Aquifer 173: Maple Mountain, Crofton - Maple Bay18.9 L/min 27 wells tested
- 392Aquifer 203: Shawnigan Lake/Cobble Hill/Mill Bay18.9 L/min 946 wells tested
- 393Aquifer 205: Shawnigan Lake18.9 L/min 33 wells tested
- 394Aquifer 208: Malahat Ridge18.9 L/min 228 wells tested
- 395Aquifer 218: Nanoose Hill18.9 L/min 19 wells tested
- 396Aquifer 224: Eagle Bay18.9 L/min 25 wells tested
- 397Aquifer 272: North-east of Kamloops18.9 L/min 17 wells tested
- 398Aquifer 350: NE of Vernon and to the south of BX Creek18.9 L/min 17 wells tested
- 399Aquifer 359: Quesnel, west side of Fraser River18.9 L/min 36 wells tested
- 400Aquifer 371: E of Quesnel Airport and S of Ten Mile L.18.9 L/min 96 wells tested
- 401Aquifer 372: Northwest of Ten Mile Lake, Quesnel18.9 L/min 25 wells tested
- 402Aquifer 446: Booth Creek, NW of Cranbrook18.9 L/min 15 wells tested
- 403Aquifer 555: Roberts Creek18.9 L/min 79 wells tested
- 404Aquifer 562: West Sechelt18.9 L/min 29 wells tested
- 405Aquifer 608: North Central Saanich18.9 L/min 414 wells tested
- 406Aquifer 614: Karmutsen18.9 L/min 131 wells tested
- 407Aquifer 688: E. of Chetwynd; N. of Pine R.18.9 L/min 29 wells tested
- 408Aquifer 737: Saturna Island - west18.9 L/min 56 wells tested
- 409Aquifer 879: Lillian Lake, NW of Wilmer Creek18.9 L/min 59 wells tested
- 410Aquifer 886: E of Hayward Lake, N of Hairsine Creek18.9 L/min 109 wells tested
- 411Aquifer 945: North-eastern shore of Cowichan Lake18.9 L/min 11 wells tested
- 412Aquifer 1065: 3 km south of Grasmere18.9 L/min 15 wells tested
- 413Aquifer 1189: Eastern Kawkawa Lake18.9 L/min 10 wells tested
- 414Aquifer 1268: Upper Bridge Creek Bedrock18.9 L/min 817 wells tested
- 415Aquifer 93: Cranbrook Hill18.5 L/min 68 wells tested
- 416Aquifer 771: Clearwater North of Kamloops18.2 L/min 37 wells tested
- 417Aquifer 473: Mission, Daves & Cardinal Ck area18 L/min 34 wells tested
- 418Aquifer 844: Cortes Island17.4 L/min 13 wells tested
- 419Aquifer 351: NE of Vernon and to the north of BX Creek17 L/min 99 wells tested
- 420Aquifer 436: Shingle Spit-Phipps Point, Hornby Island17 L/min 60 wells tested
- 421Aquifer 558: Halfmoon Bay17 L/min 48 wells tested
- 422Aquifer 619: Mayne Island17 L/min 50 wells tested
- 423Aquifer 736: Saturna Island - north17 L/min 19 wells tested
- 424Aquifer 800: South Valemont17 L/min 10 wells tested
- 425Aquifer 817: NE of Edgewater, Columbia River Valley17 L/min 18 wells tested
- 426Aquifer 805: West of Mabel Lake East of Enderby15.9 L/min 11 wells tested
- 427Aquifer 1267: Lower Bridge Creek Valley Bedrock15.9 L/min 105 wells tested
- 428Aquifer 18: Mission15.1 L/min 57 wells tested
- 429Aquifer 81: 14 kilometres northeast of Prince George15.1 L/min 13 wells tested
- 430Aquifer 122: Sardine Flats15.1 L/min 45 wells tested
- 431Aquifer 165: South Wellington15.1 L/min 157 wells tested
- 432Aquifer 170: Panorama Ridge, Chemainus15.1 L/min 33 wells tested
- 433Aquifer 202: Koksilah River Valley15.1 L/min 172 wells tested
- 434Aquifer 211: Nanaimo15.1 L/min 161 wells tested
- 435Aquifer 213: Lantzville15.1 L/min 46 wells tested
- 436Aquifer 248: Spotted Lake, Osoyoos15.1 L/min 13 wells tested
- 437Aquifer 320: Galiano Island15.1 L/min 581 wells tested
- 438Aquifer 367: Northwset of Quesnel15.1 L/min 11 wells tested
- 439Aquifer 379: Horsefly, B.C.15.1 L/min 11 wells tested
- 440Aquifer 534: Fernie S. B. R.15.1 L/min 20 wells tested
- 441Aquifer 548: Keats Island15.1 L/min 13 wells tested
- 442Aquifer 549: Southwestern portion of Gambier Island15.1 L/min 61 wells tested
- 443Aquifer 702: McCoy Lake; W of Port Alberni15.1 L/min 36 wells tested
- 444Aquifer 709: Gabriola; excluding northern portion15.1 L/min 223 wells tested
- 445Aquifer 722: North-Central Salt Spring Island15.1 L/min 272 wells tested
- 446Aquifer 723: South Salt Spring Island15.1 L/min 170 wells tested
- 447Aquifer 735: Saturna Island - east15.1 L/min 57 wells tested
- 448Aquifer 740: Denman Island15.1 L/min 91 wells tested
- 449Aquifer 745: Bowen Island - North15.1 L/min 54 wells tested
- 450Aquifer 887: E of Stave Falls, Steelhead Creek15.1 L/min 13 wells tested
- 451Aquifer 950: Wood Mountain and Mount Washington15.1 L/min 14 wells tested
- 452Aquifer 964: Cassidy Nanaimo Airport15.1 L/min 34 wells tested
- 453Aquifer 1004: White Valley area15.1 L/min 13 wells tested
- 454Aquifer 1076: W side of Elk R Valley15.1 L/min 10 wells tested
- 455Aquifer 1108: Willowbrook and Oliver15.1 L/min 49 wells tested
- 456Aquifer 1142: North of Fort Steele15.1 L/min 17 wells tested
- 457Aquifer 1147: South-Central Salt Spring Island15.1 L/min 263 wells tested
- 458Aquifer 579: E. of Smithers; E. side of Bulkley River14.4 L/min 28 wells tested
- 459Aquifer 447: Georgina Pt - Hall Hill, Mayne Island N.14.2 L/min 26 wells tested
- 460Aquifer 712: North Pender; Port Browning14.2 L/min 78 wells tested
- 461Aquifer 578: E. of Smithers; E. side of Bulkley River13.2 L/min 36 wells tested
- 462Aquifer 701: Eagle Point SW of Kleecoot13.2 L/min 14 wells tested
- 463Aquifer 727: Cherry Cr valley; SW of Kamloops13.2 L/min 38 wells tested
- 464Aquifer 1032: Osprey Lake13.2 L/min 20 wells tested
- 465Aquifer 1053: 2 km south of Fernie13.2 L/min 10 wells tested
- 466Aquifer 1109: Willowbrook13.2 L/min 12 wells tested
- 467Aquifer 355: West of Deep Creek, NW of Armstrong12.3 L/min 38 wells tested
- 468Aquifer 943: Jordan River to Rosemond Creek, Vancouver12.3 L/min 36 wells tested
- 469Aquifer 987: Sumas Mountain12.3 L/min 22 wells tested
- 470Aquifer 68: Belcarra11.4 L/min 55 wells tested
- 471Aquifer 89: Vanway South11.4 L/min 56 wells tested
- 472Aquifer 107: Gardom Lake to Enderby11.4 L/min 36 wells tested
- 473Aquifer 154: NW of Whonnock Lake11.4 L/min 37 wells tested
- 474Aquifer 164: Harewood Lake11.4 L/min 91 wells tested
- 475Aquifer 198: Cowichan Bay11.4 L/min 159 wells tested
- 476Aquifer 214: Madrona Point / Parksville11.4 L/min 13 wells tested
- 477Aquifer 220: Errington11.4 L/min 223 wells tested
- 478Aquifer 226: Scotch Creek to Anglemont11.4 L/min 11 wells tested
- 479Aquifer 233: Blind Bay / White Lake11.4 L/min 23 wells tested
- 480Aquifer 238: Spotted Lake, Osoyoos11.4 L/min 33 wells tested
- 481Aquifer 250: Pinantan Lake / Pritchard11.4 L/min 65 wells tested
- 482Aquifer 304: West side of Okanagan Lk, west of Kelowna11.4 L/min 120 wells tested
- 483Aquifer 368: 2 km. north of Quesnel11.4 L/min 25 wells tested
- 484Aquifer 386: Miocene, Northeast of 150 Mile House11.4 L/min 47 wells tested
- 485Aquifer 438: Mt. Geoffrey, Hornby Island11.4 L/min 323 wells tested
- 486Aquifer 472: Southeast of Ellison Lake11.4 L/min 90 wells tested
- 487Aquifer 607: North end of Saanich Peninsula11.4 L/min 84 wells tested
- 488Aquifer 620: Mayne Island11.4 L/min 42 wells tested
- 489Aquifer 632: Navy Channel, S. Mayne Is.11.4 L/min 23 wells tested
- 490Aquifer 673: South Fraser Lake Bedrock11.4 L/min 41 wells tested
- 491Aquifer 711: North Pender; northern area11.4 L/min 117 wells tested
- 492Aquifer 731: Thetis Island11.4 L/min 34 wells tested
- 493Aquifer 968: De Courcy Island11.4 L/min 47 wells tested
- 494Aquifer 1016: Owl Creek11.4 L/min 17 wells tested
- 495Aquifer 1022: Ribbleworth Creek11.4 L/min 20 wells tested
- 496Aquifer 1184: Skidgate/Queen Charlotte11.4 L/min 22 wells tested
- 497Aquifer 1187: Ucluelet Peninsula11.4 L/min 11 wells tested
- 498Aquifer 110: Grandview Bench11 L/min 22 wells tested
- 499Aquifer 106: Southwest of Leduc Creek10.4 L/min 12 wells tested
- 500Aquifer 697: East side of Alberni Valley10.4 L/min 36 wells tested
- 501Aquifer 1020: East face of Sugarloaf Mountain10.4 L/min 24 wells tested
- 502Aquifer 360: West of Bouchie Lake, northwest of Quesnel9.5 L/min 39 wells tested
- 503Aquifer 411: Nanaimo Group, Campbell River to Courtney9.5 L/min 96 wells tested
- 504Aquifer 706: Gabriola; Northern area9.5 L/min 75 wells tested
- 505Aquifer 937: Keremeos Creek Valley9.5 L/min 17 wells tested
- 506Aquifer 957: Shuttle Bay to the Malaspina Peninsula9.5 L/min 24 wells tested
- 507Aquifer 1185: Mount Ozzard, Bedrock Southeast9.5 L/min 24 wells tested
- 508Aquifer 1220: Eastern slope of Mount Elphinstone9.5 L/min 17 wells tested
- 509Aquifer 1242: North Campbell River Bedrock9.5 L/min 16 wells tested
- 510Aquifer 182: Paldi - Sahtlam8.5 L/min 40 wells tested
- 511Aquifer 471: West of Ellison Lake8.5 L/min 55 wells tested
- 512Aquifer 550: Carmelo Point, Gambier Island8.5 L/min 70 wells tested
- 513Aquifer 729: South Thetis Island8.5 L/min 14 wells tested
- 514Aquifer 938: Hayman Mtn, S of Lambly Ck8.5 L/min 20 wells tested
- 515Aquifer 19: Grant Hill7.6 L/min 121 wells tested
- 516Aquifer 162: Cedar, Yellow Point, N. Oyster (Ladysmith)7.6 L/min 568 wells tested
- 517Aquifer 175: North Duncan7.6 L/min 38 wells tested
- 518Aquifer 210: Nanoose Bay7.6 L/min 31 wells tested
- 519Aquifer 212: Parksville7.6 L/min 13 wells tested
- 520Aquifer 435: Whaling Station Bay, Hornby Island7.6 L/min 74 wells tested
- 521Aquifer 606: Sooke-Metchosin7.6 L/min 988 wells tested
- 522Aquifer 658: Houston Bedrock7.6 L/min 23 wells tested
- 523Aquifer 721: North Salt Spring Island7.6 L/min 415 wells tested
- 524Aquifer 732: Thetis Island7.6 L/min 25 wells tested
- 525Aquifer 754: Quadra South Bedrock7.6 L/min 76 wells tested
- 526Aquifer 775: North Houston Bedrock7.6 L/min 13 wells tested
- 527Aquifer 890: Mount Tom Bedrock7.6 L/min 17 wells tested
- 528Aquifer 1003: North of Lumby7.6 L/min 12 wells tested
- 529Aquifer 1026: Hayes Creek, N of Finnegan Ck7.6 L/min 14 wells tested
- 530Aquifer 1043: southeast of Golden7.6 L/min 45 wells tested
- 531Aquifer 720: North Pender; southern portioin7 L/min 36 wells tested
- 532Aquifer 946: North-eastern shore of Cowichan Lake6.6 L/min 19 wells tested
- 533Aquifer 437: Ford Cove-Norman Point, Hornby Island5.7 L/min 12 wells tested
- 534Aquifer 551: Northeast portion of Gambier Island5.7 L/min 56 wells tested
- 535Aquifer 710: South Pender5.7 L/min 144 wells tested
- 536Aquifer 1127: Greater Nakusp Area4.7 L/min 40 wells tested
- 537Aquifer 861: Lower Peachland Creek watershed4.3 L/min 12 wells tested
- 538Aquifer 963: Nanaimo River Road near Berkley Creek4.2 L/min 56 wells tested
- 539Aquifer 618: Port Renfrew, south side of San Juan River3.8 L/min 11 wells tested
- 540Aquifer 730: South East Thetis Island3.8 L/min 22 wells tested
- 541Aquifer 787: Sidney Island, South End3.8 L/min 11 wells tested
- 542Aquifer 967: Reid Island3.8 L/min 11 wells tested
The province maps aquifers where wells and studies give enough to go on, mostly in settled valleys; most of BC isn't mapped, and a lot outside every outline can still have groundwater. Outlines are drawn from geology and well logs at the scale of the study, so an edge can be well off on the ground, and one aquifer can lie under another. Wells are linked to an aquifer by provincial staff from the driller's log: not every well inside an outline is linked, and well depths and yields are as the driller reported them, often from a short test.
These are mapped ratings and drillers' records, not a test of any one lot. Before you buy a property on a well, or plan to drill, ask a qualified hydrogeologist or a registered well driller what this aquifer gives where you are, and test the water.
Sources: Ground Water Aquifers, Water Protection and Sustainability Branch, Province of BC and Groundwater Wells (GWELLS), Province of BC, as published on October 1, 2026 (Open Government Licence – British Columbia); ratings explained after Berardinucci and Ronneseth (2002), Guide to Using the BC Aquifer Classification Maps for the Protection and Management of Groundwater, BC Ministry of Water, Land and Air Protection. Summaries by PlaceDossier.
Other rankings: aquifers with the most wells, largest aquifers, aquifers with the deepest wells, highly vulnerable aquifers with the most wells, aquifers with the most flowing wells.