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Scientific Investigations Report 2007-5268

Prepared in cooperation with the Standing Rock Sioux Reservation

Water, Bed-Sediment, and Fish-Tissue Quality within the Standing Rock Sioux Reservation, North Dakota and South Dakota, September 2006

By William C. Damschen and Robert F. Lundgren

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Scientific Investigations Report
2007-5268 PDF (786 kB)
Abstract

During September 2006, samples from public water-delivery systems, ground water, surface water, bed-sediment, and fish-tissue sources were collected at 32 locations within the Standing Rock Sioux Reservation and analyzed to aid in the evaluation of any immediate water-quality concerns. Samples were collected from Solen, Selfridge, and Fort Yates, North Dakota, water-delivery systems and included raw water samples and treated water samples from water users on the water-delivery systems. Samples from the Solen and Selfridge systems were analyzed for dissolved major inorganic and dissolved minor and trace inorganic concentrations. Samples from the Fort Yates system were analyzed for dissolved major inorganic concentrations, dissolved minor and trace inorganic concentrations, total and dissolved nutrient concentrations, total and dissolved organic carbon concentrations, and volatile organic compound concentrations. Water samples were collected from ground-water wells throughout the reservation only in North Dakota and analyzed for dissolved major inorganic concentrations and dissolved minor and trace inorganic concentrations. Water samples were collected at locations on the Missouri River and its major tributaries within the reservation and analyzed for dissolved major inorganic concentrations and dissolved minor and trace inorganic concentrations; bed sediment was collected at these sites and analyzed for minor and trace inorganic concentrations. Fish-tissue and liver samples were collected from several species on the Missouri River near Fort Yates and analyzed for minor and trace inorganic concentrations. Results of the water-quality analysis revealed very little of concern, with the exception of elevated boron concentrations in the drinking water and ground water in the area of Selfridge and Solen and minor exceedences of total trihalomethanes in the Fort Yates water-delivery system.

Version 1.0

Posted January 2008


Suggested citation:

Damschen, W.C., and Lundgren, R.F., 2007, Water, bed-sediment, and fish-tissue quality within the Standing Rock Sioux Reservation, North Dakota and South Dakota, September 2006: U.S. Geological Survey Scientific Investigations Report 2007–5268, 29 p.



Contents

Abstract

Introduction

Purpose and Scope

Study Area

Methods

Data Collection Network

Public Drinking-Water Supply

Solen Water-Delivery System

Selfridge Water-Delivery System

Fort Yates Water-Delivery System

Ground Water

Surface Water and Bed Sediment

Fish Tissue

Established Water-Quality Standards and Health-Based Screening Levels

U.S. Environmental Protection Agency Maximum Contaminant Levels

U.S. Environmental Protection Agency Secondary Maximum Contaminant Levels

U.S. Environmental Protection Agency Health Advisories

U.S. Environmental Protection Agency Maximum Contaminant Level Goal

U.S. Geological Survey Health-Based Screening Levels

U.S. Environmental Protection Agency Screening Values for Contaminants in Fish Tissue

Water, Bed-Sediment, and Fish-Tissue Quality

Major Inorganic and Minor and Trace Inorganic Constituents in Water

Volatile Organic Compounds in Water

Minor and Trace Inorganic Constituents in Bed Sediment

Minor and Trace Inorganic Constituents in Fish Tissue and Livers

Summary

References Cited

Supplement. Analytical data for water, bed sediment, and fish tissue within the Standing Rock Sioux Reservation



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