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- Water-resources investigations report[remove]1,537
- A contribution of the Regional Aquifer-System Analysis Program4
- Louisiana hydrologic atlas map4
- Contribution of the Regional Aquifer System Analysis Program3
- Regional aquifer-system analysis3
- Water-quality study of the Conestoga River Headwaters, Pennsylvania2
- A Contribution of the Regional Aquifer System Analysis Program1
- A contribution of the Regional Aquifer-System Analyses Program1
- A contribution of the Regional Aquifer-Systems Analysis Program1
- Arizona Department of Environmental Quality open-file report1
- Contribution of the Regional Aquifer-System Analysis Program1
- Michigan Basin regional aquifer-system analysis1
- National Water Quality Assessment Program1
- Regional aquifer system analysis1
- Scientific investigations report1
- U.S. Geological Survey water-resources investigations report1