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Evaluation of Alternative Coatings for U.S. Geological Survey Water-Quality Samplers

Open-File Report 2025-1016
By:
https://doi.org/10.3133/ofr20251016

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Abstract

Each year, U.S. Geological Survey (USGS) personnel collect approximately 52,000 water-quality samples from rivers and streams across the United States. Several samplers are used by the USGS for water-quality sample collection in riverine environments. These samplers are coated with Plasti Dip to protect the exterior of the sampler; however, Plasti Dip is susceptible to fraying and wear, requiring maintenance. Alternative coatings were tested to determine if a different coating is better suited for the samplers. The alternative coatings included Raptor, powder coating, and DuraCoat; a fifth option was bare metal. Samplers with different coatings were evaluated based on initial coating application, equipment blank samples, a controlled wear test, blank sample collection with worn samplers, maintenance and re-coating of samplers, and field-use and wear tracking. The powder-coated sampler proved to be the top performer overall in the study.

Suggested Citation

Thornton, A.M., 2025, Evaluation of alternative coatings for U.S. Geological Survey water-quality samplers: U.S. Geological Survey Open-File Report 2025–1016, 15 p., https://doi.org/10.3133/ofr20251016.

ISSN: 2331-1258 (online)

Table of Contents

  • Abstract
  • Introduction
  • Methods
  • Results
  • Summary
  • Acknowledgments
  • References Cited
  • Appendix 1
Publication type Report
Publication Subtype USGS Numbered Series
Title Evaluation of alternative coatings for U.S. Geological Survey water-quality samplers
Series title Open-File Report
Series number 2025-1016
DOI 10.3133/ofr20251016
Publication Date April 16, 2025
Year Published 2025
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Virginia and West Virginia Water Science Center
Description Report: iv, 15 p.; Data Release
Online Only (Y/N) Y
Additional Online Files (Y/N) N
Additional publication details