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Effectiveness of Wastewater Collection System Rehabilitation to Reduce Infilration and Inflow Feb 2004
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Effectiveness of Wastewater Collection System Rehabilitation to Reduce Infilration and Inflow Feb 2004
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6/5/2009 11:15:22 AM
Creation date
6/1/2009 12:27:28 PM
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PW_Exec
PW_Division_Exec
Engineering
PWA_Project_Area
Wastewater
PW_Subject
Wastewater
Document_Date
2/29/2004
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E/S WPCF Basin ' <br />Pre- vs. Post-Rehabilitation Monitoring Results <br />450 <br /> <br />400 <br /> <br /> <br />350 <br /> <br />300 <br />..r <br />~ 250 <br /> <br /> <br />~ 200 <br /> <br /> <br />~ 150 <br /> <br />100 <br /> <br />50 <br /> <br />0 <br /> <br />0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 <br />Event + 7-Day Rainfall Volume (in) <br />Figure 4 - E/S WPCF pre- vs. post-rehabilitation event comparison (measured flow vs. event <br />+ 7-day rainfall) <br />E/S WPCF Basin <br />Pre- vs. Post-Rehabilitation Monitoring Results <br />450 <br /> <br />400 <br /> <br />350 <br /> <br />300 <br />... <br />~ 250 <br /> <br />3 <br />j 200 <br /> <br />~ 150 <br /> <br /> <br />100 <br /> <br /> <br />50 <br /> <br />0 <br /> <br />0.0 5.0 10.0 15.0 20.0 <br />Event + 30-Day Rainfall Volume (in) <br />Reduction = 11 <br />y = 44.46x y = 39.59x <br />® 0 <br />~ ~ <br />®Pre-Rehabilitation <br />® Post-Rehabilitation <br />Reduction = 8% <br />° <br />y = 20.92x <br />y = 19.28x <br />® v <br />0 <br />~ Pre-Rehabilitation <br />~ Post-Rehabilitation <br />
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