﻿614 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Hudson 
  river 
  data 
  are, 
  in 
  the 
  absence 
  of 
  extended 
  gagings 
  of 
  

   Salmon 
  river, 
  taken 
  as 
  applying 
  to 
  this 
  stream. 
  

  

  In 
  the 
  following 
  tabulation 
  we 
  have 
  the 
  evaporation 
  for 
  the 
  

  

  months 
  of 
  a 
  water 
  year 
  as 
  computed 
  in 
  inches 
  on 
  the 
  Salmon 
  

   river 
  catchment 
  area 
  for 
  the 
  actual 
  reserToir 
  area 
  : 
  

  

  December 
  0.043 
  

  

  January 
  0.020 
  

  

  February 
  0.021 
  

  

  March 
  0.053 
  

  

  April 
  ; 
  0.104 
  

  

  May 
  0.182 
  

  

  June 
  0.221 
  

  

  July 
  0.192 
  

  

  August 
  0.212 
  

  

  September 
  . 
  . 
  0.160 
  

  

  October 
  0.115 
  

  

  November 
  '. 
  . 
  057 
  

  

  In 
  designing 
  a 
  storage 
  reservoir 
  the 
  stream 
  is 
  entitled 
  to 
  some 
  

   water 
  at 
  all 
  seasons 
  of 
  the 
  year, 
  and 
  computations 
  of 
  effective 
  

   storage 
  should 
  be 
  made 
  with 
  reference 
  to 
  allowing 
  a 
  definite 
  

   quantity 
  of 
  water 
  to 
  go 
  constantly 
  to 
  the 
  stream. 
  From 
  this 
  

   point 
  of 
  view 
  it 
  is 
  necessary 
  to 
  decide 
  on 
  some 
  mean 
  flow 
  below 
  

   which 
  the 
  stream 
  shall 
  never 
  be 
  allowed 
  to 
  fall. 
  This 
  is 
  done 
  

   in 
  the 
  interests 
  of 
  water-power 
  plants 
  already 
  located 
  on 
  the 
  

   stream, 
  fisheries, 
  etc. 
  In 
  the 
  Hudson 
  report 
  the 
  quantity 
  fixed 
  

   upon 
  for 
  storage 
  in 
  the 
  upper 
  Hudson 
  catchment 
  area 
  is 
  0.5 
  

   inch 
  per 
  month. 
  In 
  cubic 
  feet 
  this 
  amounts 
  to 
  0.45 
  cubic 
  foot 
  

   per 
  second 
  per 
  square 
  mile 
  for 
  a 
  month 
  of 
  thirty 
  days. 
  This 
  

   quantity 
  may 
  be 
  used 
  in 
  the 
  case 
  of 
  the 
  Salmon 
  river 
  reservoir. 
  

   With 
  0.45 
  cubic 
  foot 
  per 
  second 
  per 
  square 
  mile 
  always 
  flowing 
  

   away 
  from 
  the 
  regulated 
  catchment 
  area, 
  we 
  would 
  have 
  in 
  the 
  

   stream 
  just 
  below 
  the 
  Salmon 
  river 
  dam 
  about 
  87 
  to 
  88 
  cubic 
  feet 
  

   per 
  second, 
  which 
  was 
  approximately 
  the 
  observed 
  low-water 
  flow 
  

   in 
  the 
  summer 
  of 
  1898. 
  1 
  

  

  2 
  Also 
  see 
  a 
  statement 
  on 
  a 
  following 
  page 
  in 
  regard 
  to 
  uniform 
  supply 
  

   allowed 
  to 
  flow 
  from 
  the 
  Hudson 
  reservoirs. 
  

  

  