196 RECORD OF DEEP-WELL DRILLING FOR 1905. 
Feet. 
Rock 263 -263^ 
Greenish sandy clay with heavy gravel bed 263^-272 
Blue clay containing very fine sand , 272 -287 
Sand rock 287 -289 
Bed of shells, oysters, etc. ; living types 289 -290 
White clay 290 -294 
Sand with clay enough to hold it 294 -298 
Compact greenish sandy clay with streaks of nearly pure clay 298 -314 
Sand containing shells with just enough clay to hold them 314 -320 
Shells with scraps of fossil bone 320 -330 
Coquina rock 330 -331 
Clay 331 -340 
Blue clay and sand. 340 -350 
Sticky blue clay; very little sand 350 -358 
Clay with black gravel 358 -365 
Blue clay with gravel and shell casts 365 -368 
White clay with gravel 368 -375 
White mail with very little sand 375 -385 
Light-colored clay 385 -390 
Greenish clay 390 -400 
Greenish sandy clay 400 -410 
Sticky clay 410 -428 
Clay with very little sand 428 -434 
Nearly pure clay; very lighi when dry 434 -443 
Bluish sandy clay with gravel and streaks of sticky clay with some nodules of 
rock 443 -470 
Rock .470 -470) 
Greenish clay with fine sand above and coarse sand below; si nail flow of water 
at 487 feet 470^-487 
Rock bowlder (siliceous concretion) in blue sandy clay 487 -492 
Compact blue clay ~. 492 -496 
White clay 496 -497 
Conglomerate rock 497 -499 
Hard brownish rock 499 -504 
Very hard compact rock (siliceous limestone) 504 -510 
Soft white rock with some water 510 -519 
Hard compact rock 519 -524 
Very soft white rock in layers 1 to 5 feet thick wit h st rata of more compact rock 
3 to 12 inches thick; increase in the flow of water on breaking each haid 
stratum. Gaged flow at 632 feet 1,000,000 gallons in twenty-four hours 524 -727 
Compact brownish rock; no water 727 -758 
Alternate hard and soft strata of grayish rock with very little water 758 -865 
Soft white rock with hard brown layers 1 to 3 feet thick eveiy few feet; a slight 
increase of flow from each soft layer 865 -930 
Very hard brown rock 930 -935 
Soft brownish rock with hard layers, flow increasing as each hard layer is broken. 935 -95C 
Alternate layers of hard and soft rock: small increase in flow 950 -97C 
More compact rock; no water 970 -98( 
Total flow 2,000,000 gallons in twenty-four hours. Temperature of water from 524 I : 
727 feet, 76° to 77.5°; from 865 to 970 feet, 78° to 79° at well bottom; temperature 
flow at well mouth, 77\°. Static head +58 feet. This well is one of several supplyii ! 
the city Quality hard, sulphur bearing. 
