Effect of simulated tree canopy removal on a municipal wellfield in the Puget Sound aquifer system, Thurston County, Washington
Open-File Report
2013-1291
Prepared in cooperation with the Washington State Department of Natural Resources and the City of Olympia
By: Kenneth H. Johnson
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Abstract
Effects of tree canopy removal on a wellfield were simulated using a groundwater flow model characteristic of hydrogeologic settings in the Puget Sound aquifer system. Effects were estimated according to simulated changes in flow patterns that may result from tree canopy removal associated with varying degrees of residential development. The flow model used was a modified version of a model of the hydrogeologic setting in Thurston County, Washington; the wellfield was one planned for Olympia, Washington, and the canopy modifications spanned a range of possible land use change scenarios. The relative effects of tree canopy removal were estimated in terms of potential changes in capture zones for the wellfield and groundwater levels. Because of the depth of the wellfield and the dispersal of the effects from changes in recharge at ground surface, potential changes in wellfield capture zones and groundwater levels were discernible but small compared to other possible influences.
Suggested Citation
Johnson, K.H., 2013, Effect of simulated tree canopy removal on a municipal wellfield in the Puget Sound aquifer system, Thurston County, Washington: U.S. Geological Survey Open-File Report 2013-1291, vi, 32 p., https://doi.org/10.3133/ofr20131291.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Effect of simulated tree canopy removal on a municipal wellfield in the Puget Sound aquifer system, Thurston County, Washington |
| Series title | Open-File Report |
| Series number | 2013-1291 |
| DOI | 10.3133/ofr20131291 |
| Year Published | 2013 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Washington Water Science Center |
| Description | vi, 32 p. |
| Country | United States |
| State | Washington |
| County | Thurston County |
| City | Olympia |
| Other Geospatial | Puget Sound |
| Datum | North American Datum 1983 |
| Projection | Lambert Conformal Conic Projection |
| Scale | 24000 |
| Online Only (Y/N) | Y |