New Jersey lake levels

2 lakes, each read from the agency gauge that runs it.

Lake Hopatcong NJDEP (dam and water level plan); USGS gauge

9.22 ft 0.2 ft above full pool — on the high side for mid-August as of August 14, 2026
Greenwood Lake NJDEP Division of Parks and Forestry (dam); USGS gauge

618.50 ft Current reading shown; this gauge's public record is too short for seasonal comparisons. as of August 15, 2026