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 except discharges during period of channel dredging (Jan. 30 to Feb. 28), which are fair.
   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:  June 24-30,
   1996.

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 1995 TO SEPTEMBER 1996
                                               DAILY MEAN VALUES

DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

  1       635      549      507      485      532      654      743      833      708      619      577      554
  2       636      561      521      462      530      634      728      840      692      622      583      543
  3       639      581      542      464      519      645      773      846      705      626      584      573
  4       602      551      551      497      506      656      777      834      700      637      611      587
  5       603      550      546      523      500      642      805      837      701      617      592      599

  6       616      511      543      543      534      648      766      803      697      623      592      618
  7       597      504      576      522      531      663      758      795      708      609      581      609
  8       616      500      564      471      538      715      749      790      716      625      591      626
  9       592      509      547      449      571      726      779      759      709      625      591      600
 10       565      491      542      449      630      735      778      766      699      609      598      567

 11       585      497      524      453      615      754      787      733      683      617      586      592
 12       619      493      511      463      607      762      785      745      648      618      581      601
 13       636      478      523      475      662      780      789      745      647      615      583      590
 14       617      488      518      508      658      747      772      734      634      610      565      578
 15       622      487      501      531      592      758      754      736      637      609      595      584

 16       597      495      533      539      579      753      769      755      670      601      613      585
 17       618      498      522      539      595      731      765      749      656      599      628      596
 18       633      499      503      526      594      709      756      748      664      607      617      621
 19       642      484      508      538      595      743      762      725      662      605      605      631
 20       616      484      545      539      602      775      796      701      648      602      607      634

 21       592      469      570      524      637      808      801      679      635      592      588      643
 22       594      476      586      522      666      787      794      693      630      607      581      624
 23       558      490      580      507      681      789      768      701      625      614      564      632
 24       562      478      536      510      676      797      759      690      583      625      567      642
 25       568      475      502      525      688      771      785      726      596      600      564      622

 26       580      485      463      538      701      758      790      724      615      618      576      625
 27       599      490      489      522      713      746      827      685      617      644      592      598
 28       594      494      522      516      683      779      865      710      623      662      586      637
 29       599      505      536      486      663      755      815      696      636      617      575      644
 30       583      507      536      486      ---      767      803      705      642      613      587      632
 31       558      ---      508      502      ---      755      ---      718      ---      585      562      ---

TOTAL   18673    15079    16455    15614    17598    22742    23398    23201    19786    19072    18222    18187
MEAN      602      503      531      504      607      734      780      748      660      615      588      606
MAX       642      581      586      543      713      808      865      846      716      662      628      644
MIN       558      469      463      449      500      634      728      679      583      585      562      543
AC-FT   37040    29910    32640    30970    34910    45110    46410    46020    39250    37830    36140    36070



                               10255550  NEW RIVER NEAR WESTMORLAND, CA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1943 - 1996, BY WATER YEAR (WY)

          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

MEAN      642      563      547      563      596      673      723      658      588      592      609      618
MAX       837      760      707      795      789      810      953      853      763      808      913      807
(WY)     1953     1954     1963     1944     1944     1954     1993     1953     1953     1979     1977     1963
MIN       471      408      386      387      458      516      541      485      435      442      460      486
(WY)     1978     1965     1968     1978     1965     1965     1965     1964     1964     1964     1964     1970

SUMMARY STATISTICS           FOR 1995 CALENDAR YEAR        FOR 1996 WATER YEAR           WATER YEARS 1943 - 1996

ANNUAL TOTAL                      233230                     228027
ANNUAL MEAN                          639                        623                        614
HIGHEST ANNUAL MEAN                                                                        741              1953
LOWEST ANNUAL MEAN                                                                         484              1965
HIGHEST DAILY MEAN                   875     Apr  2             865     Apr 28            3000       Aug 17 1977
LOWEST DAILY MEAN                    463     Dec 26             449     Jan  9             150       Mar  7 1945
ANNUAL SEVEN-DAY MINIMUM             479     Nov 19             467     Jan  8             284       Mar  4 1945
ANNUAL RUNOFF (AC-FT)             462600                     452300                     444700
10 PERCENT EXCEEDS                   774                        767                        760
50 PERCENT EXCEEDS                   636                        609                        603
90 PERCENT EXCEEDS                   507                        502                        481