PISCATAQUA RIVER BASIN

                                    01073500 LAMPREY RIVER NEAR NEWMARKET, NH

LOCATION.--Lat 43°06'09", long 70°57'll", Rockingham County, Hydrologic Unit 01060003, on right bank, 200 ft upstream 
    from Packers Falls, 2 mi northwest of Newmarket, and 4.6 mi upstream from mouth.
DRAINAGE AREA.--183 mi².
PERIOD OF RECORD.--Discharge records:  July 1934 to current year. 
    Water-quality records:  Water year 1954.
REVISED RECORDS.--WSP 1231:  1936-37.
GAGE.--Water-stage recorder.  Datum of gage is 38.28 ft above sea level (revised).
REMARKS.--Records good except those for estimated daily discharges, which are fair.  Some regulation by Pawtuckaway and 
    Mendums Ponds.  These reservoirs have a usable capacity of about 600 million ft³.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 7,080 ft³/s  October 22, gage height, 14.59 ft; minimum daily discharge, 
    10 ft³/s, August 9-20.

                        DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                                                    DAILY MEAN VALUE
 
 DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
   1        33      433      428     e550     e240      521     1090      677      120       24       14      e16
   2        33      393      703     e525     e220      500     1020      576      110       21       13      e15
   3        31      358     1030      523     e210      487      914      494      101       22       12      e12
   4        27      327     1170      475     e210      454      862      527       92       27       12      e11
   5       e23      342      984      464     e260      412      891      516       83       25       11      e11
 
   6       e22      344      762      500      351      515      912      463       76       22       11      e13
   7       e24      317      648      492      368      586      897      388       78       21       11      e15
   8       e27      345      756     e550      335     e525      807      366       68       20       11      e17
   9       e70      380      889     e500      280     e420      700      336       63       23       10      e18
  10        95      439      837     e500     e230     e370      594      329       59       55       10      e18
 
  11        93      464      763     e490     e210     e340      504      329       55       81       10      e20
  12        84      433      683     e400     e180     e300      449      312       50       87       10      e41
  13        74      373      663     e370     e170     e280      524      288       54       73       10      e65
  14        65      325      680     e340     e160     e260      530      275       59       58       10      e65
  15        56     e300      713     e310      238      382      502      259       52       57      e10      e60
 
  16       e54     e280      720      331      237      465      452      269       48       55      e10      e51
  17       e52     e270      837      434      215      352      394      271       44       51      e10      e45
  18       e51      259     1120     e355      204     e300      725      253       45       51      e10      e41
  19       e52      266     1370     e300      247     e280     2100      247       59       48      e10      e37
  20       519      301     1510     e280      363     e270     2820      359       63       42      e10      e35
 
  21      3560      310     1350      263      417     e290     2560      404       60       38      e12      e34
  22      6310      289     1120      249      633     e300     1680      385       54       37      e38      e31
  23      6150      271      901      279      768     e300     1160      326       46       36       44      e27
  24      3320      256      760      254      819     e270      901      271       41       32       33      e25
  25     e1800      247      810      322      647     e250      727      249       37       29       26      e24
 
  26     e1300      350      819      415      505      471      619      245       35       26      e21      e22
  27      e930      537      803      365      461      640      547      223       34       22      e18      e22
  28      e715      572      704      357      501      699      595      198       31       21      e16      e21
  29       630      532      626      353      ---      716      775      177       26       19      e17      e21
  30       545      441      629      304      ---      898      769      156       23       17      e17       22
  31       489      ---      596      279      ---     1040      ---      134      ---       15      e18      ---
 
 TOTAL   27234    10754    26384    12129     9679    13893    28020    10302     1766     1155      475      855
 MEAN      879      358      851      391      346      448      934      332     58.9     37.3     15.3     28.5
 MAX      6310      572     1510      550      819     1040     2820      677      120       87       44       65
 MIN        22      247      428      249      160      250      394      134       23       15       10       11
 CFSM     4.80     1.96     4.65     2.14     1.89     2.45     5.10     1.82      .32      .20      .08      .16
 IN.      5.54     2.19     5.36     2.47     1.97     2.82     5.70     2.09      .36      .23      .10      .17
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1934 - 1997, BY WATER YEAR (WY)
 
 MEAN      131      267      339      288      304      604      702      354      178     95.0     73.7     72.4
 MAX       879      742      851      796      811     1866     1756     1400      717      599      621      650
 (WY)     1997     1952     1997     1956     1970     1936     1987     1954     1982     1938     1938     1954
 MIN      11.1     15.9     45.9     46.4     49.7      210      170      105     29.8     12.2     7.56     3.44
 (WY)     1948     1942     1942     1944     1980     1989     1985     1985     1964     1993     1965     1957

 SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1934 - 1997
 
 ANNUAL TOTAL                      166193.5                   142553                                             
 ANNUAL MEAN                          454                        391                        284                  
 HIGHEST ANNUAL MEAN                                                                        441              1984
 LOWEST ANNUAL MEAN                                                                         137              1965
 HIGHEST DAILY MEAN                  6310     Oct 22            6310     Oct 22            7360       Apr  7 1987
 LOWEST DAILY MEAN                      9.2   Aug 31            a 10     Aug  9              b .66    Jul 27 1994
 ANNUAL SEVEN-DAY MINIMUM              12     Sep  7              10     Aug  9               2.0     Sep 10 1995
 INSTANTANEOUS PEAK FLOW                                        7080     Oct 22            7570       Apr  7 1987
 INSTANTANEOUS PEAK STAGE                                         14.59  Oct 22              15.14    Apr  7 1987
 ANNUAL RUNOFF (CFSM)                   2.48                       2.13                       1.55               
 ANNUAL RUNOFF (INCHES)                33.78                      28.98                      21.05               
 10 PERCENT EXCEEDS                   951                        814                        656                  
 50 PERCENT EXCEEDS                   301                        275                        170                  
 90 PERCENT EXCEEDS                    27                         18                         24                  

   a  Also occurred on August 10-20.
   b  During refilling after repairs at Wiswall Dam.
   e  Estimated.

The URL for this page is: http://nh.water.usgs.gov/Publications/annual97/01073500.htm

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