10254970 NEW RIVER AT INTERNATIONAL BOUNDARY, AT CALEXICO, CA

LOCATION.-Lat 32°39'57", long 115°30'08", in SW 1/4 SE 1/4 sec.14, T.17 S., R.14 E., Imperial County, Hydrologic Unit 18100200, on left bank 200 ft downstream from bridge on Second Street and 0.2 mi downstream from International Boundary in Calexico. 
PERIOD OF RECORD.-October 1979 to current year.  October 1945 to September 1979, in files of Imperial Irrigation District. 
  CHEMICAL DATA: Water years 1969-71, 1973-85. 
  BIOLOGICAL DATA: Water years 1973-81. 
  SPECIFIC CONDUCTANCE: Water years 1974-81. 
  WATER TEMPERATURE: Water years 1974-81. 
  SEDIMENT DATA: Water years 1975-85. 
GAGE.-Water-stage recorder.  Elevation of gage is 35 ft below sea level, from topographic map. 
REMARKS.-Records good.  Discharge represents seepage and return flow from irrigated areas.  See schematic diagram of Salton Sea Basin. 
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 833 ft3/s, Dec. 9, 1982, Sept. 25, 1997, gage height, 14.73 ft; minimum daily,  98 ft3/s, Nov. 23, 28-29, 1996.

                  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       261      217      199      267      232      276      368      266      213      219      220      204
  2       251      205      208      260      235      270      371      247      224      215      214      209
  3       223      220      219      254      262      285      360      232      225      206      212      212
  4       204      241      224      254      293      292      344      232      216      202      218      211
  5       197      253      216      257      320      296      328      230      214      195      224      207
  6       197      268      224      249      375      300      335      234      213      196      216      200
  7       190      260      223      240      395      290      331      235      203      202      211      200
  8       192      254      282      235      402      293      337      226      202      205      204      198
  9       187      242      374      226      384      297      332      232      216      205      216      222
 10       180      238      397      220      390      304      334      225      230      208      227      228
 
 11       175      230      388      228      371      321      329      229      247      205      232      239
 12       172      215      355      253      340      336      323      228      239      201      241      243
 13       174      203      336      289      314      335      330      229      236      207      264      216
 14       181      207      344      319      317      361      375      221      226      213      284      219
 15       187      209      337      322      342      344      384      229      223      223      296      206
 16       193      201      327      304      309      364      380      233      211      236      397      187
 17       192      198      306      295      318      396      361      229      208      223      359      183
 18       206      187      297      272      347      412      353      237      213      220      303      182
 19       223      182      297      270      348      440      344      248      220      213      290      183
 20       235      178      293      256      327      408      336      243      218      211      300      187
 
 21       245      185      321      257      307      386      342      240      214      221      299      182
 22       244      182      358      250      309      378      344      236      213      228      295      182
 23       237      177      318      241      310      366      331      233      216      230      287      197
 24       217      163      381      239      309      356      306      229      216      232      276      202
 25       221      162      392      238      302      343      279      225      217      232      264      189
 26       220      176      398      234      291      344      260      216      219      224      258      175
 27       217      195      388      227      283      338      259      218      213      215      252      175
 28       214      195      365      225      277      329      268      217      212      206      233      183
 29       217      190      340      227      ---      329      279      226      224      203      218      197
 30       213      189      306      233      ---      354      280      222      220      207      215      190
 31       229      ---      280      232      ---      363      ---      212      ---      215      211      ---
 
TOTAL    6494     6222     9693     7873     9009    10506     9903     7159     6561     6618     7936     6008
MEAN      209      207      313      254      322      339      330      231      219      213      256      200
MAX       261      268      398      322      402      440      384      266      247      236      397      243
MIN       172      162      199      220      232      270      259      212      202      195      204      175
AC-FT   12880    12340    19230    15620    17870    20840    19640    14200    13010    13130    15740    11920


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1980 - 1998, BY WATER YEAR (WY)                                 
 
          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
MEAN      223      213      256      259      267      282      289      265      222      231      265      246
MAX       370      334      374      366      375      395      452      389      321      394      441      399
(WY)     1984     1985     1987     1987     1987     1986     1986     1984     1984     1984     1984     1983
MIN       126      108      112      162      179      190      188      177      154      139      139      152
(WY)     1997     1997     1997     1996     1991     1995     1996     1990     1992     1994     1996     1992
 
SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1980 - 1998
 
ANNUAL TOTAL                       79305                      93982                                             
ANNUAL MEAN                          217                        257                        251                  
HIGHEST ANNUAL MEAN                                                                        362              1986
LOWEST ANNUAL MEAN                                                                         181              1996
  HIGHEST DAILY MEAN                   560     Sep 25             440     Mar 19             735       Dec  9 1982
  LOWEST DAILY MEAN                    108     Jan  1             162     Nov 25              98       Nov 23 1996
  ANNUAL SEVEN-DAY MINIMUM             116     Jan  1             175     Nov 20              99       Nov 23 1996
  INSTANTANEOUS PEAK FLOW                                         764     Aug 16             833       Dec  9 1982
  INSTANTANEOUS PEAK STAGE                                         14.22  Aug 16              14.73    Dec  9 1982
ANNUAL RUNOFF (AC-FT)             157300                     186400                     182100                  
10 PERCENT EXCEEDS                   283                        354                        367                  
50 PERCENT EXCEEDS                   209                        233                        233                  
90 PERCENT EXCEEDS                   156                        195                        158