<plaintext>
                                             THAMES RIVER BASIN

                                  01120800 NATCHAUG RIVER AT CHAPLIN, CT

LOCATION.--Lat 4148'03", long 7207'07", Windham County, Hydrologic Unit 01100002, on left bank at upstream side
   of bridge on Bear Hill Road, northeast of Chaplin.
DRAINAGE AREA.--67.9 mi2.
                                           WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--Discharge:  March 6, 1998 to September 30, 1998. 
Water-quality records:  Water years 1962-64, 1995 to present.
GAGE.--Water-stage recorder.
REMARKS.--Records fair.

                   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       ---      ---      ---      ---      ---      ---      113       66       96     1030     39       15  
   2       ---      ---      ---      ---      ---      ---      254      103       70      432     31       12  
   3       ---      ---      ---      ---      ---      ---      219      110       96      202     27       10  
   4       ---      ---      ---      ---      ---      ---      157      102       71      123     23        9.9
   5       ---      ---      ---      ---      ---      ---      128      117       54       95     20        9.8
 
   6       ---      ---      ---      ---      ---       97      108      200       45       77     19       10  
   7       ---      ---      ---      ---      ---       95       94      270       41       68     18       10  
   8       ---      ---      ---      ---      ---       91       92      159       41       64     18       14  
   9       ---      ---      ---      ---      ---    e1000       94      165       47       65     16       15  
  10       ---      ---      ---      ---      ---    e2900      292      538       41       58     15       11  
 
  11       ---      ---      ---      ---      ---     1010      182      759       36       52     11        9.6
  12       ---      ---      ---      ---      ---      563      125      537       35       46     11        9.1
  13       ---      ---      ---      ---      ---      383       99      298      271       42     11        8.8
  14       ---      ---      ---      ---      ---      284       90      191      894       37     10        8.8
  15       ---      ---      ---      ---      ---      246       83      144      622       34      9.6      8.8
 
  16       ---      ---      ---      ---      ---      206       80      119      312       32      9.6     11  
  17       ---      ---      ---      ---      ---      178       98      103      187       30     12       16  
  18       ---      ---      ---      ---      ---      165      152       98      198       29     16       11  
  19       ---      ---      ---      ---      ---      521      112       82      345       26     17        9.6
  20       ---      ---      ---      ---      ---      737      191       73      236       25     17        9.2
 
  21       ---      ---      ---      ---      ---      459      155       67      249       26     16        8.9
  22       ---      ---      ---      ---      ---      343      112       59      113       26     15       12  
  23       ---      ---      ---      ---      ---      264       99       54       90       53     14       15  
  24       ---      ---      ---      ---      ---      235      139       49       83      141      9.8     15  
  25       ---      ---      ---      ---      ---      222      114       47       72       77      9.6     15  
 
  26       ---      ---      ---      ---      ---      202       99       48       61       57     15       13  
  27       ---      ---      ---      ---      ---      201      101       43       67       47     17       13  
  28       ---      ---      ---      ---      ---      179       86       38       68       40     17       14  
  29       ---      ---      ---      ---      ---      154       77       37       58       37     16       11  
  30       ---      ---      ---      ---      ---      135       70       47      604       34     15        8.5
  31       ---      ---      ---      ---      ---      122      ---       43      ---       35     15        ---
 
 TOTAL     ---      ---      ---      ---      ---      ---     3815     4766     5203     3140    509.6    344.0
 MEAN      ---      ---      ---      ---      ---      ---      127      154      173      101     16.4     11.5
 MAX       ---      ---      ---      ---      ---      ---      292      759      894     1030       39       16
 MIN       ---      ---      ---      ---      ---      ---       70       37       35       25      9.6      8.5
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 1998, BY WATER YEAR (WY)                                 
 
 MEAN      ---      ---      ---      ---      ---      ---      127      154      173      101     16.4     11.5
 MAX       ---      ---      ---      ---      ---      ---      127      154      173      101     16.4     11.5
 (WY)      ---      ---      ---      ---      ---      ---     1998     1998     1998     1998     1998     1998
 MIN       ---      ---      ---      ---      ---      ---      127      154      173      101     16.4     11.5
 (WY)      ---      ---      ---      ---      ---      ---     1998     1998     1998     1998     1998     1998
  
   e  Estimated.