Mark Osmack
Democratic · MO
Mark Osmack is a Democratic candidate for the St. Louis County Council in District 3. He is a U.S. Army veteran who has previously run for federal office.
Track record
Environment and Public Health
· 3 records
Signed a coalition letter supporting Missouri HB 995 to require filtration and maintenance plans for lead-contaminated drinking water in schools.
April 14, 2025For
Source: wqa.org · researched July 23, 2026
Represented IAPMO at Missouri's Pipe Trades Industry Day to advocate plumbing standards, skilled trades, water quality, and public health.
March 25, 2025For
Source: iapmo.org · researched July 23, 2026
Signed a water-industry coalition letter supporting Wisconsin legislation intended to reduce lead exposure through certified drinking-water treatment systems.
April 15, 2024For
Source: wqa.org · researched July 23, 2026
Public Safety and Crime Control
· 1 record
Spoke in favor of South Dakota Plumbing Commission rule changes adopting the 2024 Uniform Plumbing Code.
October 7, 2025For
Source: mylrc.sdlegislature.gov · researched July 23, 2026
Social Programs and Welfare
· 1 record
Testified in favor of Missouri SB 1539, which would provide paid medical orders for National Guard members who become living organ donors.
March 3, 2026For
Source: senate.mo.gov · researched July 23, 2026
Public Infrastructure
· 1 record
Represented IAPMO at the Iowa Capitol in advocacy for plumbing codes, safe water, conservation, and responses to lead and PFAS contamination.
March 27, 2025For
Source: iapmo.org · researched July 23, 2026
General
· 2 records
Donated a kidney to a fellow Army veteran with whom he had served in Afghanistan.
May 22, 2025
Source: spectrumlocalnews.com · researched July 23, 2026
Served as an Army first lieutenant leading a combat patrol in Afghanistan.
January 15, 2011
Source: time.com · researched July 23, 2026
Elections
- County Council - District 3 · August 4, 2026 · St. Louis County, Missouri
Profile last researched July 17, 2026.