Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2002 to June 30, 2003

Young, Stacie T. M.; Ball, Marcael T. J.

Abstract:

Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. This program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream. For this program, rainfall data was 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, 2002 to June 30, 2003. A total of 28 samples were collected over five storms during July 1, 2002 to June 30, 2003. For two of the five storms, five grab samples and three flow-weighted timecomposite samples were collected. Grab samples were collected nearly simultaneously at all five sites, and flow-weighted timecomposite samples were collected at the three sites equipped with automatic samplers. The other three storms were partially sampled, where only flow-weighted time-composite samples were collected and/or not all stations were sampled. 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/qualitycontrol samples, collected during storms and during routine maintenance, were also collected to verify analytical procedures and insure proper cleaning of equipment.

Genre:

USGS Numbered Series

ProdID:

51327

Citation Author:

Young, Stacie T. M.; Ball, Marcael T. J.

Citation Contributing Office:

USGS Pacific Islands Water Science Center

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Citation Language:

ENGLISH

Citation Larger Work Title:

Citation LatN:

0212800

Citation LatS:

0212000

Citation LonE:

-1574800

Citation LonW:

-1575800

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Citation Phsyical Description:

v, 30 p.

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Citation Public Comments:

Prepared in cooperation with the State of Hawaii Department of Transportation

Citation Publisher:

Geological Survey (U.S.)

Citation Series:

Open-File Report

Citation Series Code:

OFR

Citation Series Number:

2003-331

Citation Search Results Text:

Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2002 to June 30, 2003; 2003; OFR; 2003-331; Young, Stacie T. M.; Ball, Marcael T. J.