﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  623 
  

  

  3) 
  The 
  actual 
  runoff 
  of 
  the 
  stream 
  from 
  the 
  known 
  area 
  for 
  a 
  

   series 
  of 
  years, 
  and 
  a 
  deduction 
  therefrom 
  by 
  comparison 
  with 
  

   the 
  rainfall 
  and 
  temperature 
  records 
  of 
  the 
  amount 
  which 
  may 
  

   be 
  stored 
  in 
  the 
  year 
  of 
  minimum 
  rainfall 
  ; 
  also 
  the 
  relation 
  which 
  

   the 
  runoff 
  in 
  the 
  year 
  of 
  minimum 
  precipitation 
  bears 
  to 
  what 
  

   may 
  be 
  expected 
  in 
  the 
  average 
  year, 
  and 
  a 
  deduction 
  therefrom 
  

   of 
  the 
  proper 
  hight 
  of 
  flow 
  lines 
  for 
  full-capacity 
  development. 
  

  

  4) 
  The 
  areas 
  of 
  the 
  reservoirs 
  and 
  the 
  losses 
  therefrom 
  by 
  

   evaporation 
  which 
  may 
  be 
  reasonably 
  expected, 
  with 
  the 
  amount 
  

   of 
  effective 
  storage 
  which 
  may 
  be 
  gained 
  by 
  the 
  reservoir 
  system 
  

   when 
  developed 
  to 
  full 
  capacity. 
  

  

  5) 
  The 
  amount 
  of 
  water 
  now 
  diverted 
  for 
  the 
  use 
  of 
  Cham- 
  

   plain 
  canal, 
  and 
  the 
  amount 
  to 
  be 
  diverted 
  for 
  such 
  use 
  when 
  the 
  

   enlargement 
  is 
  completed; 
  also 
  the 
  proper 
  method 
  of 
  managing 
  

   the 
  system 
  of 
  reservoirs 
  in 
  order 
  to 
  secure 
  the 
  best 
  results 
  to 
  the 
  

   canal, 
  the 
  navigable 
  section, 
  and 
  the 
  waterpower. 
  

  

  6) 
  The 
  amount 
  of 
  waterpower 
  now 
  in 
  use 
  on 
  the 
  stream 
  and 
  

   the 
  effect 
  of 
  the 
  present 
  and 
  future 
  diversion. 
  

  

  7) 
  The 
  regimen 
  of 
  the 
  tidal 
  section, 
  and 
  the 
  effect 
  of 
  the 
  

   unregulated 
  fresh- 
  water 
  flow 
  and 
  of 
  the 
  construction 
  of 
  the 
  system 
  

   of 
  impounding 
  reservoirs. 
  

  

  8) 
  The 
  cost 
  of 
  the 
  reservoirs 
  and 
  the 
  relation 
  which 
  the 
  

   actual 
  cost 
  bears 
  to 
  the 
  amount 
  of 
  storage 
  gained. 
  This 
  latter 
  

   element 
  determines 
  the 
  commercial 
  feasibility 
  of 
  the 
  project. 
  

  

  Reservoir 
  sites. 
  The 
  surveys, 
  so 
  far 
  as 
  carried, 
  indicate 
  that 
  

   economical 
  reservoirs 
  controlling 
  the 
  entire 
  catchment 
  area 
  to 
  

   full 
  capacity 
  in 
  the 
  year 
  of 
  minimum 
  rainfall 
  may 
  be 
  constructed 
  

   in 
  the 
  Sacandaga, 
  main 
  Hudson 
  and 
  Schroon 
  valleys, 
  as 
  shown 
  

   by 
  the 
  following 
  paragraphs 
  : 
  

  

  The 
  Sacandaga 
  river 
  has 
  a 
  total 
  catchment 
  area 
  above 
  its 
  

   mouth 
  of 
  1040 
  square 
  miles. 
  The 
  catchment 
  areas 
  of 
  reservoir 
  

   sites 
  on 
  the 
  Sacandaga 
  river, 
  in 
  square 
  miles, 
  are 
  as 
  follows 
  : 
  

  

  Square 
  

   miles 
  

  

  Lakes 
  Pleasant 
  and 
  Sacandaga 
  45 
  

  

  Piseco 
  lake 
  55 
  

  

  Arietta 
  flow 
  40 
  

  

  Miscellaneous 
  ' 
  50 
  

  

  Total 
  190 
  

  

  