Page 341 - 1915, Springs of CA.

AETESIAN SPRINGS. 321

Analyses of water from Blackrock Spring, Inyo County, Cal.
[Authority, records of Los Angeles aqueduct. Constituents are in parts per million.]

1 2 3
Properties of reaction:
31 21 34
0 13 31
0 0 0
41 0 0
28 66 35
11 12 74
By Reacting By Reacting By Reacting
Constituents. weight. values. weight. values. weight. values.

36 1.55 9.3 .40 11 .46
Trace. Trace. Trace. Trace.
7.2 .36 20 1.04
3.0 .24 5.4 .45 > » .90
Iron (Fe)............ .....................
} 3.0 .11 Trace. Trace.
Sulphate ( SO4) ............................ 21 .44 20 .42 40 .83
Chloride (Cl). ............................. 7.8 .22 8.3 .23 1.8 .05
45 1.49 37 1.24 14 .48
Silica (SiO2) ............................... 7.0 .23 6.8 .23 30 1.00
*, 130.0 106.8 114.8
1. Analyst, L. J. Stabler (1906).
2. Analyst, G. E. Colby (1905).
3. Analyst, Wade & Wade (1905).
LITTLE BLACKROCK SPRING (INYO 7).
Little Blackrock Spring, which rises at the valley edge half a mile
west of north from Blackrock Spring, forms a pool a few yards in
diameter at the edge of a lava flow and also forms part of the supply
for the Los Angeles aqueduct. Its normal discharge is about 7 sec-
ond-feet (3,140 gallons a minute), but its flow is said to increase when
that of Blackrock Spring is decreased by the closing of an irrigation
head gate.
HINES SPRING (INYO 5).
Hines Spring rises in a marshy and tule-grown area at the southern
base of a lava ridge 8 or 10 feet high that is 3J miles north of Black-
rock Spring. Its water had not been made use of when the spring
was visited in 1908, and it formed a sluggish stream about 3 feet wide.
SEELYS SPRING (INYO 4).
Seelys Spring is about 1\ miles north of Hines Spring. It rises at the
south base of a low lava ridge 75 yards from the west bank of Owens
River, into which it flows directly. It yields 1J second-feet (600
gallons a minute)1 of good water that has a temperature of 61°.
1 Measurement made with current meter Nov. 15,: S, by A. T. Barrows, jr.
35657° WSP 338 15 21