USGS Water-Year Summary 2021
01377450 WOODCLIFF LAKE AT HILLSDALE, NJ
LOCATION - Lat 41°00'46", long 74°02'57" referenced to North American Datum of 1983, Hillsdale Borough, Bergen County, NJ, Hydrologic Unit 02030103, at Woodcliff Lake Dam on Pascack Brook, 0.7 mi north of Hillsdale, and 1.5 mi north of Westwood.
DRAINAGE AREA - 19.4 mi².
- WDR NJ-88-1: Capacity, WDR NJ-99-1: 1998 (elevation, contents).
PERIOD OF RECORD - Lake elevation and contents, water years 1929 to current year. Annual maximum, water years 1998 to current year. Prior to October 2007, month-end elevation and contents provided by SUEZ Water. Annual minimum, October 2007 to current year.
GAGE - Water-stage recorder with telemetry and crest-stage gage. Datum of gage is 0.00 ft above NGVD of 1929 (levels by United Water New Jersey).
COOPERATION - SUEZ Water.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 973,000,000 gal, Apr 16, 2007, gage height 96.8 ft; Minimum contents recorded, 46,800,000 gal, Sep 4, 2014, gage height, 74.05 ft; minimum contents observed from survey provided by Untied Water New Jersey (now SUEZ water), 26,000,000 gal, Aug 29, 2014, gage height, 72.50 ft, although contents may have been lower during period of dam construction Aug 27 – Sep 4, 2014.