How Mark DeSaulnier fought to save the Concord Naval cleanup

For decades, the Concord Naval Weapons Station stood as one of the largest industrial facilities in the San Francisco Bay Area, loading ammunition onto ships bound for the Pacific. When the U.S. Navy announced its closure in 2007, residents across Contra Costa County hoped the sprawling 12,800-acre site would become open space and clean industry. What they discovered instead was decades of buried munitions, chemical solvents, heavy metals, and radioactive material that had seeped into soil and groundwater. The cleanup that followed became a defining fight for Congressman Mark DeSaulnier.

DeSaulnier's familiarity with the site dates to his time on the Concord City Council in the 1990s, when he watched trains roll through town carrying weapons to the docks. By the time he reached Congress, contamination levels had been documented and cost estimates had ballooned into the hundreds of millions. Readers familiar with the conversion of Australian defence land around Sydney Harbour or the rehabilitation of the former Woomera range will recognise the same pattern: a site once considered strategic becomes a liability the moment the flag comes down.

Community pressure in Concord mirrored what residents in Adelaide's Elizabeth area or Brisbane's defence precincts have faced when legacy pollution from military training ranges comes to light. Both Australian and American regulators rely on detailed environmental impact statements, but the funding mechanisms often lag behind the science. DeSaulnier chose to make his stand in that gap, repeatedly pushing federal agencies to honour their commitments.

What followed was years of negotiation with the Navy, the Environmental Protection Agency, and successive White House budget offices. He framed the issue as both an environmental justice matter and a public health imperative, refusing to let the cleanup be delayed by shifting political winds. He also insisted that former workers and veterans deserve full disclosure of any hazards they encountered.

A base built for war, left behind for future generations

The Concord facility began operating in 1942 as a wartime ammunition depot and expanded rapidly during the Korean and Vietnam conflicts. At its peak, the base employed thousands of civilian workers and handled a significant share of the Pacific fleet's munitions. Many came from union households in Contra Costa County, and their families still remember solvent fumes drifting across neighbouring streets on hot afternoons.

The 2005 Defence Base Closure and Realignment Commission recommended the station be shuttered, and local officials began planning a massive redevelopment. Early visions included a regional park, a research campus, and mixed-use neighbourhoods connected to downtown Concord. The catch was the contamination: perchlorate from rocket propellant, trichloroethylene from industrial cleaning, lead from firing ranges, and fragments of unexploded ordnance. Independent scientists estimated full remediation would take decades and cost well over a billion dollars.

How DeSaulnier pushed Congress to act

Once elected to represent California's 11th Congressional District, DeSaulnier made the cleanup one of his signature issues. He introduced amendments to defence authorisation bills requiring the Navy to publish quarterly progress reports and to maintain a public docket of contaminants found on site. Those amendments drew bipartisan support because members from other districts recognised the national interest in cleaning up former military land.

He also worked with colleagues on the House Armed Services and Natural Resources Committees to ensure Base Realignment accounts could not be quietly redirected elsewhere. Veterans groups turned to DeSaulnier because many former service members had handled chemicals without adequate protective equipment. His broader work on healthcare priorities included pushing for toxic exposure screenings for those who served at Concord and other facilities across the country.

Workers and unions at the centre of the fight

The cleanup could not have advanced without the skilled trades who actually do the hazardous work. DeSaulnier met repeatedly with representatives from the building trades, sheet metal workers, operating engineers, and labour councils to ensure contracts included strong wage standards and domestic-content requirements. Those labour ties helped shape the political coalition that kept pressure on federal agencies year after year.

A formal union endorsement announcement recognised his record of standing with workers, giving his office additional leverage when negotiating contract terms. Australian readers will recognise the pattern: whether it is the CFMEU campaigning for safer conditions at Lucas Heights or the ACTU advocating for workers at the Alcoa smelter in Geelong, the relationship between unions and environmental remediation is often decisive in how quickly a site is cleaned up.

Environmental justice for surrounding communities

The neighbourhoods closest to the base in Concord, Pacheco, and Clyde have historically borne more than their share of industrial pollution. DeSaulnier framed the cleanup as a matter of fairness, working with local non-profits to ensure community voices were heard during the formal review process. He also pushed for independent sampling rather than relying solely on Navy contractors.

That insistence led to several rounds of expanded testing, revealing higher concentrations of contaminants than the original surveys had suggested. Community milestones helped drive the campaign forward:

Lessons for other base conversions

The Concord story has become a reference point for communities across the United States facing similar transitions. Researchers from Australian universities studying remediation projects in the Asia-Pacific region have reached out to DeSaulnier's office for briefings. The parallels with sites like HMAS Stirling in Perth or defence land around Holsworthy in Sydney are striking.

Several principles emerge from the Concord experience. Early and continuous community engagement prevents costly redesigns later in the process. Strong labour standards keep remediation work safe and politically sustainable over the long haul. Independent sampling builds public trust in the final result, particularly when contractors have an interest in downplaying the scale of contamination. Bipartisan framing protects funding across changes of administration, which is essential when remediation timelines stretch across decades.

What still remains to be done

The cleanup is far from finished. Groundwater treatment systems are still operating, and several parcels remain under active investigation for buried munitions and chemical plumes. Future phases will require sustained federal funding, and the next Congress must keep the pressure on the Department of Defense to honour its obligations.

Key priorities for the next phase include:

For families downwind of the old facility, the fight is personal. They want what any community wants when a polluting neighbour finally shuts its gates: clean soil, safe water, and a future their children can inherit without worry. Mark DeSaulnier gave them a champion who refused to let Washington forget that promise.