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. 
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 1996 TO SEPTEMBER 1997

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

  1       611      574      450      422      640      744      775      740      678      619      672      671
  2       602      574      436      378      640      716      756      751      660      636      667      655
  3       610      560      428      424      648      697      791      765      622      628      700      667
  4       622      541      463      445      658      731      779      747      611      597      710      736
  5       602      546      459      475      608      715      763      748      642      626      733      732
  6       594      543      468      419      608      734      758      767      674      637      765      725
  7       574      525      463      403      605      760      742      737      697      595      724      720
  8       578      519      460      410      630      779      817      752      694      603      703      655
  9       603      512      461      447      633      811      839      751      711      596      667      628
 10       592      512      473      449      593      806      827      756      704      615      663      650

 11       601      490      463      477      559      807      832      758      721      625      649      663
 12       603      503      440      528      557      793      852      730      750      597      672      655
 13       586      504      448      521      571      817      797      727      700      633      685      633
 14       606      516      463      510      580      834      804      732      654      619      720      643
 15       584      524      469      484      581      847      817      734      642      642      732      678
 16       591      499      451      476      568      798      828      712      641      675      717      767
 17       625      521      456      491      572      788      825      716      675      680      705      685
 18       586      538      474      507      589      814      829      715      674      686      700      677
 19       572      525      482      505      628      771      845      706      671      659      724      714
 20       562      499      473      502      663      774      848      721      673      633      720      713

 21       572      477      468      524      670      786      835      695      658      619      693      733
 22       553      478      449      527      685      778      786      716      642      643      703      715
 23       566      455      452      531      668      761      765      697      626      703      698      697
 24       560      448      471      527      696      749      771      659      611      756      667      706
 25       585      435      421      565      698      762      759      648      606      748      631      853
 26       568      434      389      581      698      787      764      651      606      704      627      998
 27       543      456      413      558      718      829      756      651      631      744      671     1020
 28       525      455      442      572      712      828      732      661      629      740      697      975
 29       532      438      429      589      ---      816      709      662      648      693      712      814
 30       536      467      450      604      ---      786      721      652      647      691      686      726
 31       565      ---      444      644      ---      728      ---      668      ---      679      692      ---

TOTAL   18009    15068    14008    15495    17676    24146    23722    22125    19798    20321    21505    21904
MEAN      581      502      452      500      631      779      791      714      660      656      694      730
MAX       625      574      482      644      718      847      852      767      750      756      765     1020
MIN       525      434      389      378      557      697      709      648      606      595      627      628
AC-FT   35720    29890    27780    30730    35060    47890    47050    43880    39270    40310    42660    43450



STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1943 - 1997, BY WATER YEAR (WY)                                 

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

MEAN      641      562      545      561      597      675      724      659      589      593      611      620
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      436      442      460      486
(WY)     1978     1965     1968     1978     1965     1965     1965     1964     1964     1964     1964     1970

SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1943 - 1997

ANNUAL TOTAL                      224905                     233777                                             
ANNUAL MEAN                          614                        640                        614                  
HIGHEST ANNUAL MEAN                                                                        741              1953
LOWEST ANNUAL MEAN                                                                         484              1965
HIGHEST DAILY MEAN                   865     Apr 28            1020     Sep 27            3000       Aug 17 1977
LOWEST DAILY MEAN                    389     Dec 26             378     Jan  2             150       Mar  7 1945
ANNUAL SEVEN-DAY MINIMUM             427     Dec 25             422     Jan  2             284       Mar  4 1945
ANNUAL RUNOFF (AC-FT)             446100                     463700                     445100                  
10 PERCENT EXCEEDS                   767                        786                        760                  
50 PERCENT EXCEEDS                   606                        651                        604                  
90 PERCENT EXCEEDS                   466                        463                        481