Description:

The City of Pocatello (17040208) storm drains were sampled during a winter snowmelt period and during a summer rainstorm. Chemical analyses of the drain water indicated levels of suspended solids, total solids, Chemical Oxygen Demand, sodium, potassium, chloride, fluoride, arsenic, cadmium, hexavalent chromium, copper, iron, lead, manganese, and zinc higher than any of the 3 major NPDES discharges to the Portneuf River. Data results indicate storm drains are a major contributor of pollutants to the Portneuf river, especially during summer rainstorms when the majority of the river flow is diverted for irrigation uses. 1980. Water Quality Summary No. 24. Department of Health and Welfare, Division of Environment, Boise, ID. 6 pp.

Record Details:

Record Type:DOCUMENT

Product Published Date:10/17/1997

Record Last Revised:12/10/2002

Record ID: 5918

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Geographic Areas:

Title :POCATELLO STORM DRAIN STUDY, BANNOCK COUNTY, IDAHO - 1979

Version :1.0

State :ID

Quality Assurance:

Title :POCATELLO STORM DRAIN STUDY, BANNOCK COUNTY, IDAHO - 1979

Data Use & Constraints :All samples were obtained by the grab methods. Samples were preserved according to Standard Method techniques. Laboratory analyses were performed according to Standard Methods. All samples were taken from the drains at the point of entry to the river. Four stations were sampled in February and one in June during a storm event.