Lake Hopatcong Commission

Water Quality Monitoring

The water quality monitoring program is conducted by the Commission's Environmental Consultant, Princeton Hydro, LLC.  In-lake monitoring takes place during the growing season from May through September each year at eleven locations.  Beginning in 2006, supplemental monitoring will be done at three near shore, in-lake sampling stations to assess the water quality benefits associated with the Best Management Practices (BMP) structures to be installed as part of the Commission's 319(h) grant awarded by the NJ Department of Environmental Protection (NJDEP). 

Additionally in 2006, the Commission staff received approval through two Quality Assurance Protection Plans (QAPPs) from NJ DEP to collect baseline (non-storm events) water quality samples from tributaries that drain into Lake Hopatcong and to collect composite stormwater samples from locations that have been selected for the installation of specific BMPs. 

The water quality monitoring program is important for several reasons:

1. continue the baseline water quality monitoring database for the lake

2. identify long-term trends in water quality

3. quantify and objectively assess the success and potential impacts of lake restoration efforts

• Water Quality Monitoring Stations Map and Tributary Monitoring Sampling Locations

• Water Quality Monthly Monitoring Reports (2008)

  • May

  • June

  • July

  • August

  • September

• Water Quality Report (2007) and Water Quality Report (Mid-Year 2007)

• Water Quality Report (2006)

• Water Quality Monitoring Report (2005)

• Water Quality Monitoring Report (2004)

• Summary of Aquatic Plant Community

Hosting visitors from US EPA Region 2 and NJ DEP Watershed Management (9-26-07)

Tributary Monitoring Training (6-21-06)

Lake Monitoring across from Liffy Island in Woodport Cove (2005)

Lake Monitoring on August 13, 2004 at Station 2 Near Chestnut Point