The morning call. [volume] (San Francisco [Calif.]) 1878-1895, 1892-04-25
IT'S OVER AT LAST.
Summary of the Tests at the Proposed
Postoffice Site.

For five long months the Government in
vestigation respecting the suitability of the
proposed postoffice site at the corner oil
Mission and Seventh streets has been con-
tinuousIy prosecuted, ceasing on Saturday
evening.
Special Agent Gibson was sent here from
Washington in November TO inquire into
the availability of the location recommended
by the commission, and for over TWO months
conducted secret examination regarding
the character and value OF the property in
QueS ton.
During the past two months the investi-
Cation as been public, and during the
greater portion Of this period has been car
ried on IN conjunction with Special Agent
Brooks. Opinions, under oath, have been
obtained from scores of citizens as to the
value and s0liiity of the site, and on the
30th ult. a series of boring experiments
were Instituted, continuing until the 23d
inst
Special Agents Gibson and Brooks have
prepared reports in accordance with the evil
dence, oral and optical, which has been
elected and they leave this morning for
Washington, accompanied by carload of
atfidavits, and specimens of the soil OBJ
tanned at the site.
The result Of the boring experiments is
subIolned:
"Wednesday March 80.
brown sand; 10 feet OF dark sand with debris
OF glass. twigs and other natter feet OF
tough, hbrous organic matter. then bog; feet
OF black seGlmeatary SAND; 3 feet of coarse
clean sand; feet 81 sand and clay impreg-
mated with vegetable matter
Thursday. March 3l-snrface water IL feet
inches.
80 feet inches-lI feet yellow sand and
clay; feet inches yellow sand. feet.6
inches coarse dark (waterl sand; II feet
inches DARK sand
Friday. April l.
Rainy day; no work at boring
Surface at IL feet inches-So feet-5
feet inches sand, impregnateo with clay;
sand 3 feet inches; sand and blue clay =
inches; blue clay. small quantity OF rotten
wood In II, feet 3 inches: coarse, yellow
sand feet inches dsrk sand feet.
Monday. Apri! +-Surfaee water Is feet inches.
feet only, IN consequence OF pipe shifting on
us. inches Of quicksand and feet inches
of dark sand.
Tuesday, April 5~Cleanins hole and pipe
No boring done.
II feet OF sand in finch pIpe-lI f6et-dark
ThnrsJaV hrrif3
? feet inches dark sAnd-2I feet-1 foot 3
feetof dark sand
Friday April 3.
feet-Dark sand; drying out dark gray.
Hole 2.
Saturday. April 9-Sirnck water at s feet 6 inches
so feet-i5 feet s inches brown sand; Is fcet-
a DARK sand: = feet q inches coarse dark
sand; feet very dark sand: feet inches
black sand impfegaated with vegetable mat.
ter: Get s inches sand blue clay and praty
stun; 7 feet yellow sand an clay in three
Monday April Il-wster level IA fee; 2 Inches
3lTeeJ-2~feet inches yellow saad and clay;
Changing rom yellow 10 dark sand. with
evidences OF QuickSand; feet dark sand.
with evidences OF quicksaud; 5 feet same
Kind 4 sand very troublesome, aHing up the
pipes as fast as il is taken out
TUESDAY. ApfA I'll , feet Of sandin pine
clay; 8 feet OF b'Ge clay. fecked vita white;
II feet Of blue sand and clay.
Hole 3.
Wednesday, April I3-worked haif day.
p ieet-COmmencCd with yellow sand. grow
Ing darker until depth OF / feet was reached;
Gark. WEI sand = feet.
- feet ! inches Dark sand 70 ia feet; very
coarse sand feet; stratum Of bog. with dark
selimeHtlry sand feet inches; sediment
AIRY clay feet; so.t. yellow sand 10 feet;
feet inches.
Friday. April IS.
Is feet 8 iuches-Yellow sand: sedtmentary,
mixed with clay, ieet : inches; dark wet
sand. teet; coarse yellow sand, u feet.
Then quicksaHd came mp in pipe following
pus,p 81 the rate OF l inch per minute.
Saturday. April 1911 feet inches dark sand il
10 feet inches-Dark sand. feet yellow
sand With clay. feet; yellow sand. unmixed.
8 f-et blue sand. mixed with clay. 2 feet:
bus clay feet inches; balance OF day
tnuea, let OF sand In pipe
Mondsg, April Is.
TO a depth Of l47.7 feel, when underlying
quicksaRd rushed up and hour was occupied
In fesculng Tools.
Hole L.
Tus sday april l9
81 teet-Dark yellow saud to So feet. black
sand 3 feet
wednesday, AprIl 20.
81 feet-BItck peat, feet; green clay AID
sand. feet: cOsTse, yellow sand, 4 feet: the
sand up In pipe; continuing quick feet;
DARK sand, req ulring auger, II feet.
! Thursday, ApTI zl--R2in: only worked half Z day.
10 feet-Liquid sand feet; dark sand. more
compact feet
Friday April 2 10 feet OF sand in pipe.
u feer-Nct sand feet. stratum OF yellow
clay 3 inches: dark sand feet inches: vel.
low sand feet; dark sand ? fee.
Saturday, 4 prIi %.
80 feet q inches-Dark sand compact, feet;
blue sand. mixed with lumpy cay. 2 feet;
stratum OF biue clay feet; mixed clay and
saud feet: blue ssnd, clay, feet: pure
blue clay q feet d inches At This depth, lao
feet inches. the boring operations ceased.