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" Chemically Enhanced Treatment Wetland to Improve Water Quality and Mitigate Land Subsidence in the Sacramento‒San Joaquin Delta: Cost and Design Considerations "
Bachand, Philip A. M.; Kraus, Tamara E. C.; Horwarth, William R.; Hatch, Nathan R.; Bachand, Sandra M.
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AL
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| Record Number
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927125
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LA968934w3
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| Language of Document
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English
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| Main Entry
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Bachand, Philip A. M.; Kraus, Tamara E. C.; Horwarth, William R.; Hatch, Nathan R.; Bachand, Sandra M.
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| Title & Author
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Chemically Enhanced Treatment Wetland to Improve Water Quality and Mitigate Land Subsidence in the Sacramento‒Sannbsp;Joaquin Delta: Cost and Design Considerations [Article]\ Bachand, Philip A. M.; Kraus, Tamara E. C.; Horwarth, William R.; Hatch, Nathan R.; Bachand, Sandra M.
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| Title of Periodical
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San Francisco Estuary and Watershed Science
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17/3
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| Date
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2019
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| Abstract
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Water quality impairment and land surface subsidence threaten the viability of the Sacramento–San Joaquin Delta (Delta), a critical component of California’s water conveyance system. Current-day irrigation drainage through Delta island peat soils affects drinking water treatment and is linked to mercury transport, potentially posing both ecological and public health concerns. To cost-effectively treat agricultural drainage water from subsided Delta islands to reduce the export of drinking Water Quality Constituents of Concern and mitigate land subsidence through accretion, we studied hybrid coagulation-treatment wetland systems, termed Chemically Enhanced Treatment Wetlands (CETWs). We provide cost estimates and design recommendations to aid broader implementation of this technology. Over a 20-year horizon using a Total Annualized Cost analysis, we estimate treatment costs of
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