Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Robert B. Thomas; Rand E. Eads
    Date: 1983
    Source: Water Resources Research 19(2): 436-440.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (99 KB)

    Description

    Automatic discrete sample pumping systems used to monitor water quality should deliver to storage all materials pumped in a given cycle. If they do not, successive samples will be contaminated, a severe problem with highly variable suspended sediment concentrations in small streams. The cross-contamination characteristics of two small commonly used portable pumping samplers are compared to each other and to reference measurements under conditions of sudden and severe changes in suspended sediment concentrations. The pressure-vacuum sampler showed greater cross contamination, especially when changing from high to zero concentrations, than the peristaltic sampler. Both samplers, however, cross-contaminated to some degree. The contamination was primarily due to the sand size particles rather than to the finer sizes

    Publication Notes

    • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Thomas, Robert B.; Eads, Rand E. 1983. Contamination of successive samples in portable pumping systems. Water Resources Research 19(2): 436-440.

    Keywords

    PSW4351, watershed, sample pumping systems, monitoring, suspended sediment, measuremen

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page