Page 330 - 1915, Springs of CA.

310 SPRINGS OF CALIFORNIA.

The following analyses show that they are essentially primary saline
and secondary alkaline waters, the upper spring having the higher
salinity:
ArMlyses of water from Mendenhall Springs, Alameda County, Cal.
[Constituents are in parts per million.]
1L 2 if

14° C . (58° F.).
Properties of reaction:
35 31 42
0 0 18
0 0 0
8 1 0
57 (' 5 68 40
54 32
By Reacting By Reacting By Reacting
Constituents.
weight. values. weight. values. weight. values.
136 5.91 4.16 148 6 43
5.5 .14 ^P-ra/Hi
95 4.72 106 5.30 104 5.17
41 3.36 44 3.61 46 3.77
3.3 .37 3.6 40
Sulphate (SO<)... . ........................ 178 3.70 144 3 nn 37il 7.78
Chloride (01).............................. 42 1.18 38 1.08 52 1.48
278 9.25 97ft Q QQ 183 6.11
Silica ( S iO 2) ............................... 7.2 .24 7.2 Q i .32
786.0 705.2 ' 920.0
164 7.45 79 3.58
18 1.06
1. Lower Spring. Analyst and authority, Winslow Anderson (1888).
2. Lower Spring. Analyst, FaLkenau and Reese. Authority, 8th Cal.
3. Upper Spring. Analyst and authority, Winslow Anderson (1889).
The water is apparently of surface origin and has become some-
what mineralized from the materials through which it percolates.
The tunnels are driven into thin-bedded cherts and crushed shales
that belong to the Franciscan group.
The property has been improved as a mountain resort for a num-
ber of years. In 1909 accommodations for 75 people were provided
by several cottages and by a dining room in the main building.
SWEET SPRINGS (ALAMEDA 6).
Another group of magnesic springs that are associated with ser-
pentinous rock rise at the border of a small meadow on a low saddle
between two ravines 18 miles southeast of Livermore. The group,
which is known as Sweet Springs, includes 10 that issue for a space
of 200 yards along the southern side of the meadow and 4 others that
issue on its eastern side. They range in size from mere seepages to
flows of 6 or 8 gallons a minute, the total yield being perhaps 30
gallons a minute. The water has a distinctly sweet taste. The
locality has been used by range stock as a watering place.