﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  677 
  

  

  street 
  442 
  feet 
  deep, 
  which 
  yielded 
  44,000 
  gallons 
  per 
  day. 
  In 
  

   1834 
  the 
  city 
  increased 
  the 
  depth 
  of 
  the 
  Thirteenth 
  street 
  well 
  100 
  

   feet, 
  thereby 
  increasing 
  the 
  supply 
  from 
  this 
  source 
  to 
  21,000 
  gal- 
  

   lons 
  per 
  day. 
  Nevertheless, 
  the 
  supply 
  from 
  these 
  various 
  sources 
  

   was 
  so 
  very 
  limited 
  that 
  considerable 
  water 
  was 
  brought 
  in 
  daily 
  

   from 
  wells 
  in 
  the 
  country, 
  selling 
  at 
  an 
  average 
  price 
  of 
  $1.25 
  per 
  

   hogshead 
  ; 
  415 
  hogsheads 
  of 
  water 
  were 
  also 
  daily 
  imported 
  from 
  

   wells 
  in 
  Brooklyn 
  to 
  supply 
  shipping. 
  

  

  The 
  inadequacy 
  of 
  the 
  supply 
  led 
  to 
  examinations 
  for 
  the 
  intro- 
  

   duction 
  of 
  water 
  from 
  other 
  sources, 
  and 
  in 
  1835 
  a 
  plan 
  for 
  pro- 
  

   curing 
  water 
  from 
  the 
  Croton 
  river 
  was 
  adopted 
  by 
  the 
  Common 
  

   Council 
  and 
  later 
  ratified 
  by 
  a 
  popular 
  vote 
  of 
  17,330 
  in 
  favor 
  of, 
  

   to 
  5963 
  against. 
  The 
  work 
  of 
  construction 
  was 
  immediately 
  begun 
  

   and 
  water 
  was 
  introduced 
  into 
  the 
  city 
  through 
  the 
  Croton 
  

   aqueduct 
  in 
  June, 
  1842. 
  The 
  population 
  at 
  that 
  time 
  was 
  375,000. 
  

   The 
  aqueduct 
  then 
  constructed 
  is 
  still 
  available 
  for 
  use, 
  with 
  a 
  

   carrying 
  capacity, 
  after 
  sixty-two 
  years 
  of 
  service, 
  of 
  90,000,000 
  

   gallons 
  per 
  day. 
  

  

  For 
  twenty 
  years 
  after 
  the 
  introduction 
  of 
  the 
  Croton 
  water 
  the 
  

   natural 
  flow 
  of 
  the 
  Croton 
  river 
  assisted 
  by 
  the 
  storage 
  of 
  Croton 
  

   lake 
  of 
  2,000,000,000 
  gallons 
  (266,666,000 
  cubic 
  feet) 
  supplied 
  

   the 
  needs 
  of 
  the 
  city, 
  although 
  it 
  became 
  evident 
  at 
  an 
  early 
  date 
  

   that 
  ultimately 
  provision 
  would 
  have 
  to 
  be 
  made 
  for 
  storing 
  

   flood-flows. 
  In 
  1857 
  the 
  Croton 
  Aqueduct 
  Board 
  caused 
  a 
  topo- 
  

   graphical 
  survey 
  of 
  the 
  entire 
  Croton 
  catchment 
  area 
  to 
  be 
  made, 
  

   and 
  the 
  number 
  of 
  sites 
  for 
  storage 
  reservoirs 
  were 
  selected 
  at 
  

   that 
  time. 
  The 
  first 
  reservoir 
  constructed 
  was 
  at 
  Boyds 
  Corners, 
  

   in 
  Putnam 
  county, 
  finished 
  in 
  1872. 
  Since 
  that 
  time 
  five 
  other 
  

   storage 
  reservoirs 
  have 
  been 
  built, 
  and 
  another 
  is 
  now 
  building. 
  

   The 
  storage 
  capacity 
  of 
  these 
  several 
  reservoirs 
  is 
  given 
  on 
  

   page 
  380. 
  The 
  safe 
  capacity 
  of 
  the 
  Croton 
  catchment 
  area 
  is 
  esti- 
  

   mated 
  at 
  280,000,000 
  gallons 
  per 
  day. 
  

  

  Pending 
  the 
  decisions 
  relative 
  to 
  the 
  construction 
  of 
  the 
  new 
  

   aqueduct 
  on 
  Croton 
  river, 
  the 
  Department 
  of 
  Public 
  Works 
  intro- 
  

   duced 
  in 
  1884 
  a 
  supply 
  from 
  the 
  Bronx 
  and 
  Byram 
  rivers. 
  This 
  

   supply 
  is 
  conveyed 
  by 
  a 
  pipe-line 
  fifteen 
  miles 
  long 
  and 
  received 
  

   into 
  a 
  reservoir 
  at 
  Williams 
  Bridge, 
  in 
  the 
  Borough 
  of 
  Bronx, 
  

   at 
  an 
  elevation 
  of 
  190 
  feet 
  above 
  tide. 
  The 
  catchment 
  area 
  from 
  

  

  