Skip Links

USGS - science for a changing world

Open-File Report 2004-1275

State of Hawaii Department of Transportation

Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2003 to June 30, 2004

By Stacie T.M. Young and Marcael T.J. Ball

Thumbnail of cover and link to download report PDF (1.9 MB)

Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Storm-water Monitoring Program. This program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream. For this program, rainfall data were collected at two sites, continuous streamflow data at three sites, and water-quality data at five sites, which include the three streamflow sites. This report summarizes rainfall, streamflow, and water-quality data collected between July 1, 2003 and June 30, 2004.

A total of 30 samples was collected over four storms during July 1, 2003 to June 30, 2004. In general, an attempt was made to collect grab samples nearly simultaneously at all five sites, and flow-weighted time-composite samples were collected at the three sites equipped with automatic samplers. However, all four storms were partially sampled because either not all stations were sampled or only grab samples were collected. Samples were analyzed for total suspended solids, total dissolved solids, nutrients, chemical oxygen demand, and selected trace metals (cadmium, copper, lead, and zinc). Grab samples were additionally analyzed for oil and grease, total petroleum hydrocarbons, fecal coliform, and biological oxygen demand. Quality-assurance/quality-control samples, collected during storms and during routine maintenance, were also collected to verify analytical procedures and check the effectiveness of equipment-cleaning procedures.

For additional information contact:

District Chief
U.S. Geological Survey
677 Ala Moana Blvd., Suite 415
Honolulu, HI 96813

http://hi.water.usgs.gov/

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.


Suggested citation:

Young, Stacie T.M. and Ball, Marcael T.J., 2004, Rainfall, streamflow, and water-quality data during stormwater monitoring, Halawa Stream drainage basin, Oahu, Hawaii, July 1, 2003 to June 30, 2004: U.S. Geological Survey Open-File Report 2004-1275, 22 p.



Contents

Abstract

Introduction

Data-Collection Network

Water-Quality Sampling Techniques

Rainfall and Streamflow Data

Stormwater Sampling: Conditions and Results

Quality Assurance

References Cited

Appendix A: Discharge Reporting and Load Calculation Methods

Appendix B (Excel File): Physical properties, concentrations, and loads for all samples collected from Halawa Stream drainage basin during the period from July 1, 2003 to June 30, 2004, Oahu, Hawaii


Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/2004/1275/
Page Contact Information: Contact USGS
Page Last Modified: Saturday, January 12, 2013, 11:20:49 PM