10255550 NEW RIVER NEAR WESTMORLAND, CA

LOCATION.-Lat 33°06'17", long 115°39'49", in SW 1/4 SW 1/4 sec.19, T.12 S., R.13 E., Imperial County, Hydrologic Unit 18100200, on right bank 3.5 mi upstream from mouth and 5.2 mi northwest of Westmorland. 
PERIOD OF RECORD.-January 1943 to current year.  (Monthly discharge only, January 1943 to September 1960 published in WSP 1734; daily discharge available in files of the U.S. Geological Survey.) 
GAGE.-Water-stage recorder.  Elevation of gage is 220 ft below sea level, from topographic map. 
REMARKS.-Records good.  Discharge mainly represents seepage and return flow from irrigated areas.  See schematic diagram of Salton Sea Basin. 
COOPERATION.-Gage height record provided by Imperial Irrigation District for the following dates:  July 15-28.
EXTREMES FOR PERIOD OF RECORD.-Maximum daily discharge, 3,000 ft3/s, Aug. 17, 18, 1977, estimated by Imperial Irrigation District; minimum daily, 150 ft3/s, Mar. 7, 1945. 

                  DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                                               DAILY MEAN VALUES
DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
  1       639      684      536      540      593      671      850      829      638      620      702      628
  2       607      714      534      517      574      681      879      817      654      637      696      603
  3       620      710      537      544      595      736      918      816      654      627      664      582
  4       620      695      545      532      585      705      926      784      681      626      660      583
  5       607      672      556      534      564      742      902      759      667      637      696      603
  6       583      667      576      559      563      753      824      771      674      676      729      617
  7       603      691      587      584      595      788      857      770      665      681      717      608
  8       604      688      562      614      645      752      915      787      657      688      713      596
  9       634      662      542      630      684      758      929      783      647      690      710      592
 10       648      631      563      637      656      811      928      758      634      692      742      581
 
 11       620      625      628      595      633      794      918      815      662      701      788      576
 12       593      630      681      530      632      839      906      828      637      700      725      592
 13       583      617      688      526      622      870      841      768      641      674      688      621
 14       586      600      640      534      623      884      801      754      636      666      684      602
 15       619      599      625      544      646      935      835      734      625      663      714      571
 16       615      574      652      558      630      858      888      767      612      678      687      602
 17       653      585      626      567      628      800      911      776      583      689      704      585
 18       659      595      628      603      607      770      942      759      613      706      744      580
 19       666      578      613      609      574      825      931      745      630      682      747      598
 20       668      571      613      601      577      834      877      738      620      693      743      621
 
 21       655      564      634      596      601      888      915      736      642      702      727      639
 22       668      571      626      610      600      949      905      755      615      715      711      601
 23       694      540      624      650      582      904      919      726      620      686      702      584
 24       700      554      615      649      603      909      912      708      608      702      684      603
 25       677      558      554      635      615      901      899      698      624      724      687      605
 26       669      528      566      608      636      931      871      710      605      726      705      614
 27       665      491      603      629      662      943      842      661      619      706      697      629
 28       669      486      612      657      679      926      829      673      648      726      688      654
 29       680      528      625      627      ---      871      816      668      615      701      674      672
 30       681      540      617      616      ---      841      831      653      611      681      656      640
 31       675      ---      604      614      ---      844      ---      657      ---      683      640      ---
 
TOTAL   19860    18148    18612    18249    17204    25713    26517    23203    19037    21178    21824    18182
MEAN      641      605      600      589      614      829      884      748      635      683      704      606
MAX       700      714      688      657      684      949      942      829      681      726      788      672
MIN       583      486      534      517      563      671      801      653      583      620      640      571
AC-FT   39390    36000    36920    36200    34120    51000    52600    46020    37760    42010    43290    36060



STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1943 - 1998, BY WATER YEAR (WY)                                 
 
          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
MEAN      641      563      546      562      597      678      727      661      590      595      613      620
MAX       837      760      707      795      789      829      953      853      763      808      913      807
(WY)     1953     1954     1963     1944     1944     1998     1993     1953     1953     1979     1977     1963
MIN       471      408      386      387      458      516      541      485      436      442      460      486
(WY)     1978     1965     1968     1978     1965     1965     1965     1964     1964     1964     1964     1970
 
SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1943 - 1998
 
ANNUAL TOTAL                      243312                     247727                                             
ANNUAL MEAN                          667                        679                        616                  
HIGHEST ANNUAL MEAN                                                                        741              1953
LOWEST ANNUAL MEAN                                                                         484              1965
  HIGHEST DAILY MEAN                  1020     Sep 27             949     Mar 22            3000       Aug 17 1977
  LOWEST DAILY MEAN                    378     Jan  2             486     Nov 28             150       Mar  7 1945
  ANNUAL SEVEN-DAY MINIMUM             422     Jan  2             520     Nov 26             284       Mar  4 1945
ANNUAL RUNOFF (AC-FT)             482600                     491400                     445900                  
10 PERCENT EXCEEDS                   786                        843                        762                  
50 PERCENT EXCEEDS                   667                        656                        605                  
90 PERCENT EXCEEDS                   554                        573                        481