Table 1 Water quality index (WQI) values, number of sampling locations, pollution sources, and parameter rating for Third Fork Creek Watershed between 2010 and 2020
From: Growth and chemotaxis of nematodes reduced upon exposure to Third Fork Creek surface water
Watershed | Year | Average WQI | Number of sampling locations | Pollution sources | Bacteria | Nutrients | Turbidity | Aquatic Life | References |
|---|---|---|---|---|---|---|---|---|---|
Third Fork Creek | 2010 | 71 | 7 | Cooking grease and food oil Erosion and sedimentation Improper disposal of yard waste illicit mobile car washing Private sewer overflow Public sanitary sewer over flow Sanitary sewer line breaks | Poor | – | Good | Poor | City of Durham Stormwater and GIS Services [38] |
Third Fork Creek | 2012 | 73 | 7 | Cooking grease and food oil Erosion and sedimentation Improper disposal of yard waste Illicit mobile car washing Private sewer overflow Public sanitary sewer over flow Sanitary sewer line breaks | Poor | – | Good | – | City of Durham Stormwater and GIS Services [6] |
Third Fork Creek | 2014 | 71 | – | – | – | – | – | – | City of Durham Stormwater and GIS Services [8] |
Third Fork Creek | 2016 | 76 | 7 | Cooking grease Erosion and sedimentation Illicit mobile car washing Improper disposal of yard waste Paint spills Petroleum spills Private sewer overflow Public sanitary sewer over flow Sanitary sewer line breaks | Poor | Fair | Fair | Poor | City of Durham Stormwater and GIS Services [8] |
Third Fork Creek | 2018 | 66 | 7 | Cooking grease Erosion and sedimentation Petroleum spills Private sewer overflow Public sanitary sewer over flow | Poor | Fair | Fair | Poor | City of Durham Stormwater and GIS Services [10] |
Third Fork Creek | 2020 | 75 | 7 | Poor | Fair | Good | Poor | City of Durham Stormwater and GIS Services [13] |