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OPCMIA Local 300

Local OPCM

Local 300 ยท Operative Plasterers' and Cement Masons'

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Contact

Mailing Address
Attn: Emilio Aldana, Business Manager/Financial Secretary 4495 Stoneridge DrivePleasanton, CA 94588

Officers 12

  • Greg F. Levy Sr.

    President/Business Agent

  • Emilio M. Aldana

    Business Manager/Financial Secretary

  • Miguel Duarte

    Vice President/Bus. Agent

  • Christopher D. Knerr

    Recording Secretary/Bus Agent

  • Steven Tumlinson

    Trustee

  • Alejandro Bervis

    Trustee

  • Caleb M. Matheny

    Trustee

  • Ismael Vega-Castillo

    Sergeant-at-Arms/B. Agent

  • Mark W. Johnson

    Business Agent

  • Walter E. Orellana

    Business Agent/E Board

  • Avel O. Quiroz Jr.

    Business Agent/E Board

  • Israel R. Raya-Vargas

    Business Agent

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

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Federal Filing

Members Reported
2,842
Last Report
2025
Form
LM-2
File Number
540512

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

NLRB cases for Local 300 Elections and unfair labor practice charges on LaborLab Search

Sources 2

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 Use Suggest an Edit above to tell us what's out of date.