Page 173 - 1915, Springs of CA.
P. 173

CARBONATED  SPRINGS.                  157
    as  1878  the  locality  was  resorted  to  for  use  of  this  water.  In
    1887  it  was  put  on  the  market  for  table  use,  and since  that time
    the  property has  been  extensively  improved.  There  are  extensive
    grounds  in  which  are  grouped .several  cottages,  clubhouse,  recep-
    tion hall,  and  dining hall;  and  a  bathhouse and a swimming plunge
    have been erected beside the creek.  The place is within  an easy ride
    from  St.  Helena  by  automobile  stage,  over  a  graveled  and  well-
    graded  road.
      The  Tunnel  Spring  is  no  longer  used,  but  on  the  southern  bank
    of the creek two similar springs,  known as  the Summerhouse and  the
    American  Ems, have been surrounded by  cemented  basins  and pro-
    tected  by a spring  house.  The  two  springs  that furnish  the  water
    for  bottling  are  situated  in  open  land  about  700  and  800  yards,
    respectively,  northeast  of  those  at  the  creek,  at  places  that  were
    formerly tule grown.  The  more  distant  is  known  as  the Potassium
    Spring  and  is  the  one  whose  water  is  chiefly bottled;  the  other is
    called I-ador-a Spring.
      The water of  all  five  of the springs now used  is  carbonated,  tastes
    distinctly mineralized,  and is noticeably thermal, but as they are best
    known for their carbonated character they are more properly described
    under this heading.  Summerhouse and American Ems springs are the
    warmest,  their  recorded  temperature  in  1909  being  92°.  Analyses
    of  all  the  springs,  including  the  Tunnel  Spring,  have  been  made,
    and  are here reproduced in  standard form.
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