288 RECORD OF DEEP- WELL DRILLING FOR 1905. 
1797. Well at Fort Flagler, Jefferson County. 
[Well begun June 15, 1900; completed May 8, 1903. Authority, Capt. George H. Penrose, constructing 
quartermaster. No samples.] 
Fort Flagler is in the northeast corner of Jefferson County, on a point of land projecting 
into Admiralty Inlet, the entrance to Puget Sound. The well is about 300 feet from the 
inlet . The surface materials are clay and sand of glacial origin, and the log shows the great 
depth of the deposits. The underlying bed rock is of Tertiary age. 
Record of well at Fort Flagler. 
Feet, j 
Clay 0- 4 
Sand, bottom of 4- by 6-foot pit at 32 feet 4- 00 
Hardpan 60- 64 
Coarse sand with salt water. _- 64- 123 
Fine blue sand. 123- 130 
Hardpan clay 130- 156 
Coarse sand with salt water 156- 160 
Blue clay 160- 164 I 
Sand and gravel with salt water 164- 178 I 
Clay 178- 183 
Sand and gravel with salt water . . 183- 186 
Sandy clay; end of 8-inch casing at 188 feet 186- 188 
Fine blue sand 188- 217 
Blue clay 217- 412 
Hardpan clay 412- 420 
Fine-grained, smooth blue clay; end of 6-inch casing at 560 feet 420- 663 
Hardpan and gravel 663- 666 
Hardpan and bowlders 666- 673 
Bowlders, gravel, and quicksand 673- 703 
Hardpan and gravel 703- 721 1 
Blue clay 721 735 
Clay, gravel, and sand 735- 746 
Hardpan, 14 feet; hard clay with gravel, 19 feet. 746- 76£ Ij 
Fine sand and gravel 765- 77C 
Blue clay 770- 874 
"Soapstone clay" 874- 90C 
Blue clay 900-1, 15C 
Cement clay 1, 150-1, \§l 
Fine sand 1, 165-1, 171 
Hard sandy clay with bowlders at bottom 1, 171-1, 26( 
Sandy clay 1, 260-1, 3L 
Sand with pieces of wood. 1, 312-1, 3L 
Sandy clay with pebbles . 1, 314-1, 39( 
Sandy cement clay 1, 390-1 , 44' 
Quicksand containing water 1, 448-1, 45< 
Very hard sandy clay; end of 4^-mch. casing at 1,458 feet 1, 456-1, 461 1 
Water in quicksand at 1,448 to 1,456 feet rises to about 60 feet below surface. It I 
fresh and enters well at the rate of about 1 gallon per minute. 
