Ramapo River at Pompton Lakes, Passaic County NJ (PPTN4)
Gage Location: Passaic County, New JerseySite Location: Passaic County, New Jersey
Latitude: 40.993Longitude: -74.279Elevation: 171.35 ft. MSLDrainage Area: 160 Sq. Mi.
Minor Stage: 11.5 ft. Moderate Stage: 13.5 ft.Major Stage: 14.5 ft.
First Flood: 1882-09-23Last Flood: 2011-09-08 Crest: 14.33 ft.Datum change: 2008-05-01Number of Floods: 97

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1882-09-23-999910500MissingC1 C9 G1
1896-02-06-99998730MissingC1 C9 G1
1902-03-02-99997050MissingC1 G1
1922-03-0712.375900MinorC1 C7 G1
1924-04-0712.586800MinorC1 C7 G1
1927-09-0212.687220MinorC1 C7 G1
1933-08-2412.335680MinorC1 C7 G1
1936-03-1213.5612300MissingC1 C7 G1
1938-09-2213.136620MissingC1 C7 G1
1945-07-2012.143890MinorC1 G1
1945-07-2313.458560MissingC1 C7 G1
1948-12-3112.655520MinorC1 C7 G1
1951-03-3113.558520MissingC1 C7 G1
1952-03-1212.54680MinorC1 G1
1952-04-06123190MinorC1 G1
1952-06-0212.534780MinorC1 C7 G1
1953-01-25123190MinorC1 C7 G1
1955-08-1412.414480MinorC1 G1
1955-08-1913.588570MissingC1 C7 G1
1955-10-1614.412000MissingC1 C7 G1
1957-12-2112.54750MinorC1 C7 G1
1958-02-2812.093550MinorC1 G1
1960-08-2012.093550MinorC1 C7 G1
1961-02-2612.233950MinorC1 C7 G1
1968-05-2913.829530MissingC1 C7 G1
1970-02-1112.053440MinorC1 G1
1970-04-0312.434540MinorC1 C7 G1
1971-08-2812.996420MinorC1 C7 G1
1971-09-1212.444570MinorC1 G1
1973-02-0312.755580MinorC1 C7 G1
1973-12-2113.177040MissingC1 C7 G1
1975-09-2712.033380MinorC1 C7 G1
1977-03-2312.635290MinorC1 C7 G1
1977-11-0814.0410300MissingC1 C7 G1
1978-03-2712.183810MinorC1 G1
1978-05-1512.23870MinorC1 G1
1979-01-2512.655130MinorC1 C7 G1
1979-03-0712.043380MinorC1 G1
1979-05-2512.163710MinorC1 G1
1980-03-2213.136700MissingC1 C7 G1
1980-04-1012.966120MinorC1 G1
1981-02-2112.133630MinorC1 C7 G1
1982-01-0511.732590MinorC1 G1 G3
1983-03-1912.665160MinorC1 G1
1983-04-1712.123600MinorC1 G1
1983-04-2511.82760MinorC1 G1
1983-12-1413.156770MissingC1 G1
1984-04-0515.2115400MissingC1 G1
1984-05-3013.056420MissingC1 G1
1984-07-0712.13540MinorC1 G1
1986-08-0311.82760MinorC1 G1
1987-04-0111.712540MinorC1 G1
1987-04-0513.076490MissingC1 G1
1989-05-0612.073460MinorC1 G1
1989-05-1712.775510MissingC1 G1
1989-10-2112.294070MinorC1 G1
1990-12-0511.722560MinorC1 G1
1993-03-2911.822810MinorC1 G1
1993-04-0211.712540MinorC1 G1
1995-11-1212.243930MinorC1 G1
1996-01-2012.745410MissingC1 G1
1996-01-2812.524740MinorC1 G1
1996-07-1412.13540MinorC1 G1
1996-10-2012.143650MinorC1 G1
1998-05-11123280MinorC1 G1
1999-03-2312.183760MinorC1 G1
1999-09-1614.914000MissingC1 G1
2003-10-3011.712539MissingC1 G1
2003-12-1212.314120MissingC1 G1
2003-12-2512.043385MissingC1 G1
2004-07-2312.23816MissingC1 G1
2004-08-1711.742615MissingC1 G1
2004-09-0912.322210MissingC1 G1
2004-09-1813.566390MissingC1 G1
2004-09-2912.783600MissingC1 G1
2005-01-1510.012650MissingC1 G1
2005-03-2910.583390MissingC1 G1
2005-04-0314.226360MajorC1 G1 G3
2005-10-0914.47130MajorC1 G1
2005-10-1313.665860MajorC1 G1
2005-12-019.61990MinorC1 G1
2005-12-169.311670MinorC1 G1
2006-01-049.011320MinorC1 G1
2006-01-159.131450MinorC1 G1
2006-01-199.882320MinorC1 G1
2006-05-129.131450MinorC1 G1
2006-06-089.091410MinorC1 G1
2006-06-289.161490MinorC1 G1
2006-11-0910.282760MinorC1 G1
2007-04-1616.999930MajorC1 F2 G1
2007-12-2413.025670MajorC1 F2 G1
2010-03-1418.0511000MajorC1 F2 G1
2011-08-2822.6117800MajorC1 F2 G1

Codes and description

C1|Crest information looks unreliable and incomplete and not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 08:00 PM May 28, 2014