Page 187 - 1915, Springs of CA.

CARBONATED SPRINGS. 171
issue consists of the crushed sediments that cover a large part of the
region.

CARBONATED SPRING NEAE BOONVILLE (MENDOCINO 26).
A small carbonated spring rises on the Hotel ranch, near Boonville,
about 25 miles northwest of Cloverdale. It has not been improved,
however, and has been used only occasionally for drinking.
SINGLEYS SODA SPRING (MENDOCINO 27).
Singleys Soda Spring is 'on the main road between Ukiah and
Boonville, about 5 miles northeast of the latter place. There has
been a roadhouse near the spring for a number of years and the place
is well known to travelers through this region. The spring has been
improved only for drinking.

VICHY SPRINGS (MENDOCINO 24).
Vichy Springs form a resort that has been established for many
years on Sulphur Creek, 3 miles northeast of Ukiah. In 1909 a small
hotel and several cottages provided accommodations for 50 guests,
and tub baths were supplied by the two principal springs, which
rise on the southern side of the creek, about 200 yards southeast of the
hotel. One of them, known as Ardeche Spring, rises in a cemented
basin about 5 by 15 feet in size and 2 feet deep and supplies half a
dozen tubs in a bathhouse beside it. Many bubbles rise with the
water, which is slightly clouded as if by a small precipitate of iron,
and a slight deposit, probably of calcium carbonate, forms on its
surface. The water is noticeably carbonated and slightly alkaline in
taste. Its discharge is about 8 gallons a minute, and the temperature
is 90°.
About 45 yards southeastward, upstream from Ardeche Spring,
Vichy Spring rises in a pool of irregular shape, about 6 by 10 feet
in size, in a natural grotto of lime carbonate. It is said to have
formerly issued at a point 3 or 4 yards farther west but changed to
its present outlet at the time of a small earthquake. The earthquake
of April 18, 1906, is said not to have affected it, however. When
visited, the water of Vichy Spring was somewhat clearer than that of
Ardeche Spring, but a more noticeable deposit of iron was formed.
Its recorded temperature was 88°, being slightly lower than that of
Ardeche Spring, but its discharge was approximately twice as great.
Because of the temperature of the waters of these main springs they
are shown on the map (PL III, in pocket) as thermal-carbonated,
but they are best known for their carbonated character.
The water of Vichy Spring is kept flowing through tubs in a bath-
house beside it, when they are in use. A tingling sensation that is
caused by small bubbles of carbon dioxide which collect on the bather