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UA Local 398

Local 398 ยท United Association of Plumbers and Pipefitters

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Contact

Mailing Address
Attn: William Steiner, Business Manager/Finance Secretary 8590 Utica Ave, Suite 200Rancho Cucamonga, CA 91730

Officers 12

  • Jaime Valdivia

    President

  • William F. Steiner

    Business Manager/Finance Secretary

  • Raymond Le Vangie III

    Vice President

  • Andres Valdivia

    Recording Secretary

  • David C. Hanson

    Business Agent/Exam Boar

  • Carl Segura

    Executive Board

  • Mike Marietti

    Executive Board

  • Anthony Flores

    Executive Board

  • Duane Wright

    Executive Board

  • Jerry Kaliher

    Finance Committee

  • Richard Sneed

    Finance Committee

  • Sean Gaudreault

    Finance Committee

From the 2025 LM-2 report (opens in new tab)

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Federal Filing

Members Reported
1,012
Last Report
2025
Form
LM-2
File Number
4066

Members as the union reported them on its 2025 LM-2 report. Counts may include retirees and associate members.

NLRB cases for Local 398 Elections and unfair labor practice charges on LaborLab Search

Listings come from public filings with the U.S. Department of Labor and from the organizations' own websites, as of the dates under Sources. Details change, and we may have them wrong. Check with the organization before you rely on them. Use Suggest an Edit above to tell us what's out of date.