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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Hutchinson, Kasey J. Keefe, Steffanie H. Duris, Joseph W. Bradley, Paul M. Kolpin, Dana W. Barber, Larry B. Hubbard, Laura E. |
| Copyright Year | 2016 |
| Abstract | Effluent-impacted surface water has the potential to transport not only water, but wastewater-derived contaminants to shallow groundwater systems. To better understand the effects of effluent discharge on in-stream and near-stream hydrologic conditions in wastewater-impacted systems, water-level changes were monitored in hyporheic-zone and shallow-groundwater piezometers in a reach of Fourmile Creek adjacent to and downstream of the Ankeny (Iowa, USA) wastewater treatment plant (WWTP). Water-level changes were monitored from approximately 1.5 months before to 0.5 months after WWTP closure. Diurnal patterns in WWTP discharge were closely mirrored in stream and shallow-groundwater levels immediately upstream and up to 3 km downstream of the outfall, indicating that such discharge was the primary control on water levels before shutdown. The hydrologic response to WWTP shutdown was immediately observed throughout the study reach, verifying the far-reaching hydraulic connectivity and associated contaminant transport risk. The movement of WWTP effluent into alluvial aquifers has implications for potential WWTP-derived contamination of shallow groundwater far removed from the WWTP outfall. |
| Starting Page | 864 |
| Ending Page | 874 |
| Page Count | 11 |
| File Format | HTM / HTML PDF |
| ISSN | 20531400 |
| Volume Number | 2 |
| Issue Number | 5 |
| Journal | Environmental Science: Water Research & Technology |
| DOI | 10.1039/c6ew00128a |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Fourmile Creek Ankeny Iowa USA Groundwater Wastewater |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Engineering Water Science and Technology |
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