presentation for water resources commission · presentation for water resources commission by p.r....
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Design and Engineering considerations for the installation of a coupler-well to mitigate saltwater
encroachment in the Baton Rouge area
Presentation For
Water Resources Commission
By P.R. (Randy) Hollis, P.E.
& Roy A. Waggenspack, P.E. 7/30/14
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July 29, 2014 Presentation
• Background
• Analysis
• Physical construction of the scavenger well
• Startup
• Data, chloride concentration and flow for the well couple
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• Objective: To intercept salt water in the 1,500 ft aquifer that is migrating northward from the Baton Rouge fault toward the Lula, North 45th,and Government Street potable water well fields.
July 29, 2014 Presentation
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July 29, 2014 Presentation
• Premise: The construction of a fresh water well pulling fresh water from the upper part of an aquifer in combination with a salt water well pulling salt water from the lower part of an aquifer will allow for a much greater capture of salt water than the installation of a single salt water well in this same aquifer.
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Scavenger Project Baseline Chloride Discrete Sample Results
Depth North St North St Progress Park
in Feet Production Well Scavenger Well Observation Well
2/5/2014 2/6/2014 2/7/2014
G.Elev. 59' G.Elev. 59' G.Elev. 60'
1570 TOS 1572
1575 135
1580
1585 129
1590
1595 129
1600 TOS 1605
1605 125 55
1610
1615 BOS1616 124 55
1620
1625 179
1630 TOS 1634.7
1635 573 340
1640
1645 570 373
1650
1655 608 1171
1660
1665 BOS1664.7 1491 BOS1665 1008
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