Table 4,—Drillers’ logs of selected wells and test borings in the ־־lower Androscoggin River basin (Thicknesses and depths below land surface are given in feet) Thick- Depth Thick- Depth Thick- Depth ness ness ness ANDROSCOGGIN COUNTY ANDROSCOGGIN COUNTY—Continued ANDROSCOGGIN COUNTY—Continued An. 7« Alt. about 190 ft. Log of public-supply well of Lisbon Water Dept. An 354. Alt. 258 ft. Log of test bor- An 363. Alt. 224 ft. Log of test bor- ing for Maine Turnpike Authority. ing for Maine Turnpike Authority. Marine deposits and ice-contact deposits: Marine deposits: Marine deposits: 2 2 Brown-gray, soft, moist clay .... 2 2 Gray-brown, moist, stiff clay, 10 12 Brown, moist, loose silty sand . . . ׳ 4 6 little sand 5 5 Ice-contact deposits: 35 Till: Gray, moist, very stiff clay, trace 10 23 Brown; dense, moist silty sand and of sand 5 10 45 fine gravel . . ; 5 11 Gray, moist, soft silt and clay . . 15 25 21 66 Gray-brown, very stiff, moist Marine deposits and till: Till: clay and gravel 15 26 Gray, moist, soft silt and brown 1 67 Gray, moist, very dense silty sand moist, loose silty sand and 30 Bedrock at 67 and gravel 20 46 gravel 5 Bedrock: An 8c. Alt. about 190 ft. Log of public- An 355. Alt. 265 ft. Log of test bor- White, hard, solid pegmatite . . . 10 40 supply well of Lisbon Water Dept. ing for Maine Turnpike Authority. An 364. Alt. 229 ft. Log of test bor- Marine deposits: 20 20 Dark-brown, wet, loose, inorganic ing for Maine Turnpike Authority. Clay * 35 55 silty sand 3 3 Marine deposits: Ice-contact deposits: Brown, very wet, loose sand .... 18 21 Topsoil ....... 2.5 2.5 15 70 Marine deposits: Brown-gray, dry, medium clay; 10 Gravel 3 73 Gray, wet, medium silty clay .... 4 25 moist from 8 to 10 7.5 73 An 365. Alt. 243 ft. Log of test bor- An 356. Alt. 234 ft. Log of test bor- An 348. Alt. 272 ft. Log of test boring ing for Maine Turnpike Authority. ing for Maine Turnpike Authority. for Maine Turnpike Authority. Marine deposits: Marine deposits: Brown-gray, hard, moist clay and Brown, moist, stiff silty clay; 10 10 Dark-brown, dry, loose, sandy loam 1 1 silt; very soft in lower part . . 30 30 boulder from 5 to 10 Rusty, dry, loose, silty sand . . . 3 4 Gray, moist, very wet, soft silt . . 7 37 Brown, moist, stiff clayey silt . . 3 13 Light-brown, moist, dense, fine sand 12 16 Gray, moist, very soft silt .... 5 42 Bedrock: 15 Brown, moist, very hard sandy silt Till: Decomposed bedrock . 2 and gravel 11 27 Gray, moist, loose silty sand and An 366. Alt. 248 ft. Log of test bor- 5 47 Boulders ... 1 28 ing for Maine Turnpike Authority. An 357. Alt. 288 ft. Log of test bor- Till: An 349. Alt. 222 ft. Log of test boring ing for Maine Turnpike Authority. Brown, wet sand and clay 3 3 for Maine Turnpike Authority. Till: Brown, wet, dense sand 3 6 Dark-brown, dry, soft silty sand . . 5 5 Light-brown, very wet, dense sand . 14 20 Light-brown, moist, soft sandy topsoil 1 1 Brown, moist, hard sand, little Blue-gray, very wet sand and silt . 6 26 Light-brown, moist, soft sand . . . 9 10 gravel 10 15 An 367. Alt. 236 ft. Log of test bor- Marine deposits: Blue-gray, very wet, soft clay. . . Gray, moist, very hard gravel . . . Gray, moist, very hard sand and 6 21 32 42 ing for Maine Turnpike Authority.־ Till (?): gravel 17 38 Marine deposits: Blue-gray, wet, dense sand .... 6 48 Gray, dry, very hard silty sand, 42 Tan, moist, medium silt ...... 4 4 Blue-gray, clayey, wet gravel and little gravel . . 4 Bedrock: sand, boulders in lower part , . 17 65 Black and white, hard, broken 21 25 Light-brown, moist, dense sand . . 5 70 An 358. Alt. 227 ft. Log of test bor- quartzite . . Brown-gray, wet, dense gravel and ing for Maine Turnpike Authority. An 368. Alt. 201 ft. Log of test bor- Rand 5 ; 75 Till: Light-brown, wet, dense, sand and Topsoil 1 1 ing for Maine Turnpike Authority. gravel 2 77 Gray-brown, moist, very dense sand, Marine deposits: little gravel 4 5 Topsoil 3 3 An 350. Alt. 194 ft. Log of test boring Gray, dry, hard clay 3 8 Brown-gray, moist, medium clay . . 7 10 for Maine Turnpike Authority. Refusal at 8 Brown-gray, wet, soft clay .... 5 15 Outwash: Topsoil 2 2 An 359. Alt. 260 ft. Log of test bor- An 369. Alt. 137 ft. Log of test bor- Dark-brown, wet, dense silty fine ing for Maine Turnpike Authority. ing for Maine Turnpike Authority. 5 7 Marine deposits: Till: Refusal at 7 Topsoil ... 2 2 Topsoil, dark-brown, moist, soft Brown-gray, moist medium clay • • • 5 7 sand and gravel, boulder 7 7 An 351. Alt. 218 ft. Log of test boring Gray-brown, moist, loose clay . . . 2 9 Bedrock: for Maine Turnpike Authority. Gray-brown, wet, loose clayey sand . 4 13 Light, blue-gray, very hard granite 10 17 Outwash: Gray, moist, stiff clay 5 18 and quartz Black, dry, loose sand and gravel . 5 5 Refusal at 18 An 370. Alt. 105.5 ft. Log of test Brown, wet, loose silty sand . . . 6 11 Gray, wet, loose, sandy clayey silt 2 13 An 360. Alt. 248 ft. Log of test bor- boring for Maine Turnpike Authority. 16 16 Till (?): ing for Maine Turnpike Authority. Water (Androscoggin River) Brown, gray, wet, dense silty sand Dune sand: Alluvium: 25.5 and gravel 15 28 Yellow, dry, loose sandy silt . . . 5 5 Dark-gray, wet, loose sand (coarse) 9.5 Bedrock: Brown, moist, loose sandy silt . . . 5 10 Gray, moist, loose sand ...... 9.5 35 Dark-gray, hard, broken gneiss . . 4 32 Gray-brown, moist, loose silty sand, Gray, moist, medium silt 5 40 Hard, white, solid pegmatite . . . 1 33 trace of clay 10 20 Till (?): 49 Red-brown, moist, loose silty sand . 5 25 Gray, moist, dense silty sand (fine) 9 An 352. Alt. 227 ft. Log of test boring Brown-gray, moist, loose silty sand 5 30 Bedrock: for Maine Turnpike Authority. Marine deposits: Gray, hard, solid granite and 55 Outwash: Gray, moist, soft silty clay .... 9 39 quartzite 6 Light-brown, moist, loose silty sand Marine deposits (?): 12 12 Gray, wet, very soft silty clay . . Bedrock: 35 74 An 371. Alt. 163 ft. Log of test bor- Gray-brown, moist, medium silty clay 8 20 Hard, gray-black, unlaminated peg- ing for Maine Turnpike Authority. matite 4 78 Outwash: An 353. Alt. 261 ft. Log of test boring Dark-brown, moist, fine topsoil . . 1 1 for Maine Turnpike Authority. An 361. Alt. 273 ft. Log of test bor- Light-brown, moist, fine silty sand 2 3 Dune sand: ing for Maine Turnpike Authority. Brown, moist, fine sand, traces of 8 Light-brown, moist, fine sand ... 12 12 Till: gravel 5 Till (?): Brown, moist, loose, organic silty Marine deposits: 12 Brown-gray, moist, medium sandy clay 10 22 5 5 Gray-brown, moist, fine sandy clay 4 Gray, wet, very sense silty sand . . 11 16 Gray, moist, soft clay, trace of 15 Bedrock: sand 3 White, hard, solid pegmatite .... 3 19 An 362. Alt. 229 ft. Log of test bor- ing for Maine Turnpike Authority. Dune sand: Topsoil 1 1 Brown, moist sand (fine) 3 4 Gray-brown, very wet silty sand . . 1 5 9 k6~