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N.C. Department of Environment and Natural Resources

NC Department of Environment and Natural Resources
Water Quality - Intensive Survey Unit

Water Quality

Intensive Survey Unit

The Intensive Survey Unit (ISU) collects and interprets a variety of biological, chemical, and physical data that are incorporated in the DWQ basinwide planning concept. ISU monitoring programs include the Ambient Lake Monitoring Program, Lake TMDL Studies, and other Special Studies/Intensive Surveys as requested and resources allow. Specific monitoring activities include:

• Chemical sampling in water or sediment
• Physical measurements (temperature, pH, dissolved oxygen, conductivity)
• Flow/velocity/time-of-travel measurement
• Sediment oxygen demand and nutrient flux
• Channel morphology and lake bathymetry measurement
• Remote sampling

Lakes are valued for the multiple benefits they provide to the public, including recreational boating, fishing, drinking water, and aesthetic enjoyment. The ISU seeks to protect these waters through monitoring, pollution prevention and control, and restoration, and public education activities. Assessments have been made at many publicly accessible lakes, at lakes which supply domestic drinking water, and lakes (public or private) where water quality problems have been observed. Data are used to determine the trophic state of each lake, a relative measure of nutrient enrichment and productivity, and whether the designated uses of the lake have been threatened or impaired by pollution.

Lakes data are available online from the U.S. EPA's STORage and RETrieval (STORET) database.


 

Unit Number      919.743.8403

Staff Contacts

Unit Supervisor 
919.743.8496
Env. Specialist
919.743.8500
Env. Specialist
919.743.8499
NC Lakes Monitoring Program Coordinator
919.743.8495
Special Studies/Reclassifications
919.743.8506
Special Studies/Reclassifications
919.743.8498
Env. Specialist/Lakes Monitoring
919.743.8501
Env. Scientist/Special Studies
919.743.8497

 

Environmental Sciences Section 1621 Mail Service Center Raleigh, NC 27699-1621 919.743.8400

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