Pompton River at Pompton Plains, Morris County NJ (PPPN4)
Gage Location: Passaic County, New JerseySite Location: Morris County, New Jersey
Latitude: 40.969Longitude: -74.282Elevation: 160 ft. MSLDrainage Area: 355 Sq. Mi.
Minor Stage: 16 ft. Moderate Stage: 18 ft.Major Stage: 19 ft.
First Flood: 1903-10-10Last Flood: 2011-09-08 Crest: 20.33 ft.Datum change: 1964-09-01Number of Floods: 46

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1903-10-10-999928340MissingC1 F1 F2 F3 F4
1945-07-2316.299690MinorC1 F2 G1
1951-03-3118.7513100ModerateC1 F2 G1
1952-06-0216.379790MinorC1 F2 G1
1955-10-1617.0615800MinorC1 F2 G1
1968-05-3022.1812300MajorF2
1970-02-1116.575770MinorF2
1970-04-0319.288520MajorF2
1971-08-2819.268610MajorF2
1971-09-1216.785980MinorF2
1972-06-2318.047240ModerateF2
1973-02-0320.3711500MajorF2
1973-06-3016.386020MinorF2
1973-12-2219.279730MajorF2
1975-03-2116.486150MinorF2
1976-01-2816.946670MinorF2
1977-03-2317.759000MinorC7 F1 F2
1977-11-0919.7111600MajorF2
1978-03-2717.488580MinorF2
1979-01-2518.179520ModerateF2
1979-05-2516.957890MinorF2
1980-03-2217.749300MinorF2
1980-04-1019.5612000MajorF2
1983-03-1918.2710100ModerateF2
1983-03-2216.287220MinorF2
1983-04-1717.348710MinorF2
1983-12-1417.247740MinorF2
1984-04-0624.4725400MajorF2
1984-05-3020.0111200MajorF2
1987-04-0518.9112600ModerateF2
1989-05-1718.8912500ModerateF2
1996-01-2816.969490MinorF2
1998-05-1216.328620MinorF2
1999-09-1721.0116400MajorC5 F2
2003-12-1216.779290MinorF2
2005-04-0320.4215300MajorF2
2005-10-0917.8610600MinorF2
2005-10-1317.5610500MinorF2
2007-04-1621.7218000MajorF2
2010-03-1422.7718900MajorF2
2010-03-3116.99030Minornone
2011-03-0720.3214400Majornone
2011-03-1122.1117700Majornone
2011-04-1719.8413600Majornone
2011-08-2925.2425000Majornone
2011-09-0820.3314300Majornone



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: 07:20 AM Nov 12, 2013