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Streamflow Measurements for the Nation


USGS 011020308 SAWMILL BROOK NEAR ROCKPORT, MA


Essex County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°38'18", Longitude  70°36'37" NAD27
Drainage area 0.53  square miles
Contributing drainage area 0.53  square miles
Gage datum 40 feet above NGVD29
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Meas.
Number
  Date       Time Time
Datum
Measurement
Used?
  Who Measuring
Agency
Stream
flow
(ft3/s)
Gage
Height
(ft)
GH
Change
(ft)
Meas.
Duration
(hr)
Meas.
Rated
  Control Flow
Adjust.
Code
 
202000-11-08 13:00ESTYesjswUSGS0.432.080.000.50Fair NONE
192000-09-07 14:30EDTYesjswUSGS0.051.24-0.010.30PoorClearNONE
182000-07-18 09:30EDTYesrssUSGS0.271.550.040.40FairDebrisModerateNONE
172000-06-12 15:00EDTYesjswUSGS0.651.800.000.50GoodClearNONE
162000-05-05 12:15EDTYesjswUSGS0.761.810.000.50GoodClearNONE
152000-03-23 13:30ESTYesjswUSGS0.891.780.000.50GoodClearNONE
142000-02-15 14:45ESTYesjswUSGS1.992.080.000.50Good NONE
132000-02-14 13:38ESTYesGGGUSGS16.12.590.020.50GoodClearNONE
121999-12-28 12:15ESTYesjswUSGS0.151.430.000.20PoorIceShoreNONE
111999-10-28 10:46EDTYesJSWUSGS0.541.580.000.50PoorClearNONE
101999-07-23 12:05EDTYesJLZUSGS0.001.10 Unspecified NONE
91999-06-28 09:45EDTYesjfwUSGS0.001.120.000.10FairClearNONE
81999-05-11 12:30EDTYesJLZUSGS0.491.600.000.50FairClearNONE
71999-03-04 10:15ESTYesjfwUSGS4.522.120.001.00GoodClearNONE
61999-03-03 09:12ESTYesJLZUSGS13.92.530.000.50GoodClearNONE
51999-02-03 09:12ESTYesJLZUSGS18.32.62-0.040.50GoodClearNONE
41999-01-24 15:15ESTYesCRLUSGS4.832.240.020.50GoodClearNONE
31999-01-16 11:05ESTYesCRLUSGS6.752.26-0.010.50FairClearNONE
21999-01-04 10:30ESTYesgggUSGS2.502.070.000.80ExcellentClearNONE
11998-12-10 12:18ESTYesJLZUSGS0.251.460.000.50PoorClearNONE