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Open-File Report 2013–1029

Prepared in cooperation with the National Park Service

Water-Quality Data Collected to Determine the Presence, Source, and Concentration of Lead in the Drinking Water Supply at Pipe Spring National Monument, Northern Arizona

By Jamie P. Macy, David Sharrow, and Joel Unema

Thumbnail of and link to report PDF (1.9 MB)Abstract

Pipe Spring National Monument in northern Arizona contains historically significant springs. The groundwater source of these springs is the same aquifer that presently is an important source of drinking water for the Pipe Spring National Monument facilities, the Kaibab Paiute Tribe, and the community of Moccasin. The Kaibab Paiute Tribe monitored lead concentrations from 2004 to 2009; some of the analytical results exceeded the U.S. Environmental Protection Agency action level for treatment technique for lead of 15 parts per billion. The National Park Service and the Kaibab Paiute Tribe were concerned that the local groundwater system that provides the domestic water supply might be contaminated with lead. Lead concentrations in water samples collected by the U.S. Geological Survey from three springs, five wells, two water storage tanks, and one faucet were less than the U.S. Environmental Protection Agency action level for treatment technique. Lead concentrations of rock samples representative of the rock units in which the local groundwater resides were less than 22 parts per million.

First posted February 13, 2013

For additional information contact:
Director, Arizona Water Science Center
U.S. Geological Survey
520 N. Park Avenue
Tucson, AZ 85719
http://az.water.usgs.gov/

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Suggested citation:

Macy, J.P., Sharrow, D., and Unema, J., 2013, Water-quality data collected to determine the presence, source, and concentration of lead in the drinking water supply at Pipe Spring National Monument, northern Arizona. U.S. Geological Survey Open-File Report 2013-1029, 16 p.



Contents

Abstract

Introduction

Description of Study Area

Methods

Water-Quality Results

Rock Composition Results

Summary

References Cited


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Page Last Modified: Wednesday, February 13, 2013, 01:17:12 PM