RBF_Cover (for eps) - National Water Research Institute

Leakance (inverse days)
10
1
0.1
10/1/1999 3/31/2000 9/30/2000 3/31/2001 9/30/2001 3/31/2002 9/30/2002
favorable improvements in water quality compared to the Ohio River source (Wang et al., 2002),
including:
• Lower turbidity.
• Lower TOC.
• Increased minimum temperature.
• Reduced microbial contaminants.
Date
Figure 5. Measured leakance values corrected to 68-degrees Fahrenheit (October 1999).
Table 1 summarizes typical water quality from the collector well compared to local groundwater
and Ohio River sources.
Table 1. Characteristics of River Water and Groundwater in the Project Area
Infiltrated Bedrock
Parameters River Water Groundwater Groundwater
pH 1 7.7 to 7.9 7.4 to 7.5 7.2 to 7.3
Total Hardness (mg/L) 1 90 to 205 280 to 290 530 to 582
Total Alkalinity (mg/L) 1 50 to 110 235 to 250 260 to 280
TOC (mg/L) 1 2.1 to 4.9 0.3 to 0.6 0.4 to 0.7
Turbidity (ntu) 1 2 to 1,500 5.0