Passaic River near Millington, Morris County NJ (MILN4)
Gage Location: Somerset County, New Jersey	Site Location: Morris County, New Jersey
Latitude: 40.68	Longitude: -74.529	Elevation: 215.6 ft. MSL	Drainage Area: 55 Sq. Mi.
Minor Stage: 8 ft.	Moderate Stage: 9 ft.	Major Stage: 9.8 ft.
First Flood: 1924-04-07	Last Flood: 2011-09-08 Crest: 8.04 ft.	Datum change: 1925-07-04	Number of Floods: 22

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Date of Flood Crest(ft) Streamflow(cfs) Category Code 1924-04-07 8 1100 Minor *** (5) 1936-03-12 9.18 1800 Moderate none 1938-09-22 8.11 1040 Minor none 1942-08-14 8.57 1360 Minor none 1948-12-31 8.71 1520 Minor none 1968-05-29 8.04 1070 Minor none 1971-08-29 9.73 2170 Moderate none 1971-09-14 8.39 1200 Minor none 1972-06-23 8.02 1070 Minor none 1972-11-09 8.14 1090 Minor none 1975-09-27 8.81 1580 Minor none 1979-01-25 8.73 1530 Minor none 1979-02-26 8.19 1080 Minor none 1983-12-14 8.23 1140 Minor none 1984-04-05 8.87 1620 Minor none 1986-04-18 8.04 1080 Minor none 1996-10-20 9.89 2290 Major none 1999-09-17 8.91 1590 Minor none 2007-04-17 9.35 1870 Moderate none 2010-03-15 9.38 1900 Moderate none 2011-08-29 10.26 2610 Major none 2011-09-08 8.04 1040 Minor none

MARFC Codes
Code Description
(!!!) Datum changed during this year.
(1) Backwater Effect.
(2) 15.77 ft also occurred on 11/25/1950 but only counted as one flood.
(3) Estimated from currrent USGS rating table.
(4) Estimated height from the USGS.
(5) Gage height at a different site and/or datum
(6) Discharge affected by Regulation or Diversion
(7) Due to changes, prior floods were based on present flood stage. Therefore, flood data could possibly be incomplete.
(8) Gage is a staff gage and not the offical USGS gage. Therefore, some floods may be missing from our study.
(9) Discharge effected by snow-melt, ice jam or debris jam break up
(A) Discharge affected to unknown degree by regulation or diversion.
(B) Month or day of occurrence is unknown or not exact.
(C) All or part of the record affected by urbanization, mining, agricultural changes, channelization, or other factors.
(D) Crest height adjusted to current datum.
(E) Estimated discharge.
(F) Only annual maximum peak available for this year.
(O) This flood occurred at a previous flood stage that is lower than the current flood stage. This is only a historical flood.
** Crest information looks reasonable despite potential problems. This data was used in our study.
*** Crest information looks unreliable and incomplete and was not used in our flood frequency study.
**** Gauge was discontinued in 2004. 2004 and later was not used in our study.
none No code

Updated: 08:58 AM Jun 28, 2012