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NORTH CAROLINA GLOBAL TRANSPARK
STONYTON CREEK BASELINE WATER QUALITY MONITORING

Kinston, North Carolina
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The North Carolina Global TransPark (NCGTP) in Kinston, North Carolina has been conceived as a state-of-the-art facility integrating time-critical manufacturing concepts with seamless 21st Century transportation systems. The 15,726-acre site for the TransPark is centered around the Kinston Jetport, with land surrounding the airport targeted for future industrial and commercial development.

EcoScience Corporation (ESC) provided assistance and guidance with evaluation of all natural resource matters and project master planning at the site during preparation of the Environmental Impact Statement.  Subsequently, our firm was instrumental in assisting the TransPark Authority with development of a wetland mitigation plan and associated environmental stewardship program as part of the first phase of development (5,775 acres). 

As part of the NCGTP environmental commitment, baseline water quality monitoring was required to establish “pre-project” conditions within the NCGTP boundary.  The project involved land coverage analysis within four watersheds.  Seven sampling stations were established in area streams and monthly/bi-monthly sampling was undertaken for a two-year period.  Concentration measurements for ammonia, nitrate, TKN nitrogen, total phosphorus, total suspended solids, turbidity, and fecal coliform were taken.  Stream discharge information was based on stream velocity and water level (stage) data collected at three stations.  Velocity and stage data were recorded with 2150 ISCO flow modules at 15-minute intervals.  A stage-discharge relationship was developed.

 

North Carolina Global Transpark Site
NCGTP site

Stream Sampling – Stonyton Creek
Stream Sampling – Stonyton Creek

 

Since nutrient load information is the primary parameter of interest, ESC generated discharge-loading relationships through regression analysis.

Long term discharge averages were applied to the discharge-loading relationship to generate average nutrient loading rates.

A numeric model (MODGTP) was created using EXTEND software to produce export coefficient estimates for select nutrients (primarily total nitrogen) that would be applicable for calculating loads over the entire NCGTP boundary.  These results have been compared to in-situ sampling.  The baseline results will be used to compare “post project” loads in the future.

   
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