Page 65 - 1915, Springs of CA.

HOT SPRINGS. 61

The springs at this place were known to the Catholic mission
fathers, who at one time lived here. Their extensive modern use
dates back more than 20 years, and their accessibility has made
them an objective point for automobile parties. In 1908 accommo-
dations were provided in hotels and cottages for about 200 guests,
while tub and plunge baths at the Soda and the Sulphur springs, and
a swimming plunge that was also supplied by these springs, gave
ample opportunity for use of the waters. Analyses of the springs,
made a number of years ago, are available and are here presented in
the standard form.

Analyses of water from Paraiso Hot Springs, Monterey County, Cal.
[Constituents are in parts per million.]
1 2 3 4 5

Temperature. ................ 48°C.(118°F.) 48°C.(118°F.) 46°C. (114°F.) 21°C. (70°F.) 21°C. (70°F.)
Properties of reaction:
81 85 69 51 82
Secondary salinity. ...... 2 0 10 0 17
0 0 0 0 1
Primary alkalinity. . ..... 0 2 0 11 0
Secondary alkalinity ..... 17 13 21 38 0
Tertiary alkalinity. ...... 22 12 39 28 51
By
By
weight. R e a values. weight. R e a ting values. By weight. R e a ting values. weight. R e a ting values. weight. R e a ting values.
By
By
c
c ting
c
c
c
Constituents.
Sbdium (Na).. ............... 253 11.00 252 10.96 233 10.13 234 10-18 179 7.78
Potassium (K)............... 2.9 .07 3.1 .08 6.4 .16 80 2.05 58 1.48
Calcium (Ca)....... .......... 41 2.04 32 1.60 28 1.40 30 1.50 23 1.15
7.5 .62 38 3.13 74 6.09 9.8 .81
Iron (Fe).. .................. 7.3 .26 }» .35 .43 3.9 .14
Aluminum ( Al) .............. 5.1 .56 .68 9.7 12
Sulphate (SO4).. ............. 493 10.27 463 9.64 520 10.83 23 .48 22 .46
Chloride (Cl). ....... ......... 38 1.07 39 1.10 29 .82 342 9.65 387 10.92
79 2.63 56 1.87 94 3.13 304 10.13
Arsenate ( AsOi) ............. "so"" ~"l"66" "45"" "i.'ig" ""44"" "i."46" Trace. -Trace. "176"" ""5." 84
Silica (Si02) ............... 156 5.18
976.8 909.1 1,002.1 1,255 ....... 858.7 .......
Carbon dioxide (CO2). ....... 25 1.14 (a) (a) 17 .77 (a) (0)
60 3.52
a Present. t
1. Hot Soda Spring. Analyst and authority, Winslow Anderson, 1889.
2. Hot Soda Spring. Analyst, A. Cihi, 1871. Authority, U. S. Geol. Survey Bull. 32.
3. Hot Sulphur Spring. Analyst and authority, Winslow Anderson, 1889.
4. Arsenic Spring. Analyst, A. Cihi (?). Authority, advertising matter.
5. Iron Spring No. 2. Analyst, A. Cihi (?). Authority, advertising matter.
The Hot Soda Spring is primary saline in character with secondary
alkalinity as a subdominant property. The name "Soda," given
to this spring, is a misnomer, as the word usually applies to primary
alkaline waters. The Hot Sulphur Spring differs from the Hot Soda
Spring chiefly by reason of higher secondary salinity and its con-
tent of hydrogen sulphide. The analyses of the Arsenic and Iron
springs are of doubtful authenticity. It is of interest that only a
trace of arsenic was found in the Arsenic Spring and very little iron