A series of groundwater technical procedures documents (GWPDs) has been released by the U.S. Geological Survey, Water-Resources Discipline, for general use by the public. These technical procedures were written in response to the need for standardized technical procedures of many aspects of groundwater science, including site and measuring-point establishment, measurement of water levels, and measurement of well discharge. The techniques are described in the GWPDs in concise language and are accompanied by necessary figures and tables derived from cited manuals, reports, and other documents. Because a goal of this series of procedures is to remain current with the state of the science, and because procedures change over time, this report is released in an online format only. As new procedures are developed and released, they will be linked to this document.

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov/ or call 1-888-ASK-USGS.For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod/ To order this and other USGS information products, visit http://store.usgs.gov/ Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.Suggested citation: Barlow, P.M., Cunningham, W.L., Zhai, Tong, and Gray, Mark, 2015, U.S. Geological Survey Groundwater Toolbox, a graphical and mapping interface for analysis of hydrologic data (version 1.0)-User guide for estimation of base flow, runoff, and groundwater recharge from streamflow data: U.S. Geological Survey Techniques and Methods, book 3, chap. B10, 27 p., http://dx.doi.org/10.3133/tm3B10. ISSN 2328-7055 (online) iii Preface This report is a user guide for the streamflow-hydrograph analysis methods provided with version 1.0 of the U.S. Geological Survey Groundwater Toolbox. These include six hydrograph-separation methods to determine the groundwater-discharge (base-flow) and surface-runoff components of streamflow-the Base-Flow Index (BFI; Standard and Modified), HYSEP (Fixed Interval, Sliding Interval, and Local Minimum), and PART hydrograph-separation methods-and the RORA recession-curve displacement method and supporting RECESS program to estimate groundwater recharge from streamflow data. The performance of the program has been tested in a variety of applications, some of which are documented in this report. Future applications, however, might reveal errors that were not detected in the test simulations. Users are requested to notify the U.S. Geological Survey (USGS) of any errors found in this report or the computer program.Although this computer program has been written and used by the USGS, no warranty, expressed or implied, is made by the USGS or the U.S. Government as to the accuracy and functionality of the program and related program material, nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. The Groundwater Toolbox and other groundwater programs are available online from the USGS at http://water.usgs.gov/software/lists/groundwater/. Information on how to download and install the program can be found at that Web site. AcknowledgmentsWe thank our U.S. Geological Survey (USGS) colleagues David Nelms and Richard Healy for their review of the Groundwater (GW) Toolbox and an earlier draft of this report. We also thank Leslie DeSimone and Anna Glover, USGS, for their editorial comments on the draft report. David Nelms and Ronald Sloto of the USGS and T...

The concentration of free epinephrine and norepinephrine in plasma and 24-hr urine samples, collected from members of the Dutch Monte Rosa expedition (July 1963) was investigated during 17 days at various altitudes up to 4,560 m. The results indicate that the levels of both plasma and urine catecholamines were elevated during the expedition, the plasma levels reaching a maximum towards the end of the 12 days sojourn at 4,560 m. In general there was a twofold increase in total catecholamine concentration in the samples collected at high altitude as compared to control values at sea level. This difference was due to a significant increase in the norepinephrine concentration; there was little change in epinephrine level. epinephrine and norepinephrine; sympathoadrenal activity Submitted on September 2, 1964

Discharge to surfacewater bodies and evapotranspiration: 4,500 cfs Natural and induced recharge 13,400 cfs Natural and induced recharge 4,500 cfs Discharge to surface-water bodies and evapotranspiration: 1,600 cfs Pumpage 13,500 cfs ������������������� ������������������ Predevelopment conditions Development conditions (1985) Aquifer system Aquifer system An aquifer can be compared to a bank account, and ground water occurring in an aquifer is analogous to the money in the account.