﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  711 
  

  

  ceding 
  estimates 
  of 
  cost 
  would 
  be 
  modified 
  to 
  the 
  extent 
  of 
  sub- 
  

   stituting 
  the 
  expenditures 
  necessary 
  to 
  secure 
  the 
  Rondout 
  

   water 
  for 
  those 
  required 
  to 
  secure 
  the 
  Jansen 
  kill 
  water. 
  The 
  

   commission 
  believes 
  that 
  this 
  procedure 
  will 
  be 
  found 
  to 
  be 
  

   preferable; 
  but 
  the 
  impossibility 
  of 
  completing 
  the 
  Rondout 
  sur- 
  

   veys 
  does 
  not 
  permit 
  accurate 
  estimates 
  to 
  be 
  made 
  for 
  securing 
  

   the 
  Rondout 
  water. 
  

  

  In 
  regard 
  to 
  a 
  supply 
  for 
  the 
  Boroughs 
  of 
  Brooklyn, 
  Queens 
  

   and 
  Richmond, 
  the 
  abstract 
  of 
  the 
  final 
  report 
  of 
  the 
  commis- 
  

   sion 
  states 
  as 
  follows: 
  

  

  For 
  Brooklyn 
  and 
  Queens, 
  an 
  immediate 
  development 
  of 
  the 
  

   ground-water 
  sources 
  of 
  Queens 
  and 
  Nassau 
  counties 
  is 
  recom- 
  

   mended, 
  and 
  that 
  all 
  surface 
  supplies 
  be 
  filtered; 
  also 
  that 
  ulti- 
  

   mately 
  these 
  Long 
  Island 
  sources 
  be 
  supplemented 
  by 
  a 
  branch 
  

   conduit 
  from 
  the 
  proposed 
  500,000,000-gallon 
  aqueduct 
  from 
  the 
  

   north 
  of 
  Manhattan. 
  

  

  For 
  Richmond, 
  the 
  commission 
  has 
  approved 
  of 
  a 
  ten-year 
  

   contract 
  with 
  a 
  private 
  company 
  for 
  the 
  immediate 
  introduction 
  

   of 
  filtered 
  water 
  from 
  New 
  Jersey. 
  

  

  Queens, 
  the 
  commission 
  says, 
  already 
  urgently 
  needs 
  more 
  

   water 
  and 
  the 
  Borough 
  of 
  Brooklyn 
  has 
  also 
  reached 
  that 
  point 
  

   where 
  it 
  must 
  have 
  additional 
  water 
  of 
  good 
  quality. 
  It 
  has 
  

   already 
  begun 
  to 
  filter 
  its 
  present 
  surface 
  supplies, 
  which 
  are 
  

   more 
  or 
  less 
  polluted 
  by 
  the 
  increasing 
  population 
  of 
  the 
  south- 
  

   ern 
  portion 
  of 
  Nassau 
  county. 
  

  

  The 
  following 
  are 
  the 
  catchment 
  areas 
  of 
  the 
  several 
  reservoirs 
  

   proposed 
  for 
  construction 
  by 
  the 
  commission 
  in 
  their 
  report 
  

   of 
  1903 
  : 
  

  

  Square 
  miles 
  

  

  Fishkill 
  creek 
  : 
  Above 
  Storm 
  ville 
  dam 
  49 
  

  

  Above 
  Billings 
  dam 
  32 
  

  

  81 
  

  

  Wappinger 
  creek 
  : 
  Above 
  Hibernia 
  dam 
  90 
  

  

  Above 
  Clinton 
  Hollow 
  dam 
  26 
  

  

  ■ 
  116 
  

  

  Roeliff 
  Jansen 
  kill 
  : 
  Above 
  Silvernails 
  dam 
  149 
  

  

  Esopus 
  creek 
  : 
  Above 
  Ashokan 
  dam 
  255 
  

  

  Rondout 
  creek 
  : 
  Above 
  dam 
  131 
  

  

  Grand 
  total 
  732 
  

  

  