Trump’s $14.2 Million Reflecting Pool Renovation Sparks Algae Concerns and Cost Scrutiny

The Lincoln Memorial Reflecting Pool was refilled on June 4, 2026, after a renovation that began in April and was declared complete the week of June 9. Within days, thin green films of algae were observed on the World War II Memorial side, prompting on-site cleaning of the pool bottom.

Politico

The pool opened in 1922 and underwent a $34 million overhaul in 2012 under President Barack Obama, which added an ozone filtration system but still experienced post-renovation algae. President Donald Trump announced a new “big project” in April 2026, calling the pool “filthy” and promising a rapid fix ahead of the nation’s 250th anniversary.

Politico

• Donald Trump – former President, project sponsor, and public promoter.

Global News

• Katie Martin – spokesperson for the U.S. Interior Department.

The Guardian

• National Park Service (NPS) – overseeing maintenance and procurement.

Fact Check

• Atlantic Industrial Coatings Ltd. – awarded $14.2 million to line the basin in “American Flag Blue.”

Newser

• Green Water Solutions – received $1.7 million for a state-of-the-art ozone nanobubbler filtration system.

Newser

• Contract awards: $14.2 million (Atlantic Industrial Coatings) + $1.7 million (Green Water Solutions).

Politico

• Total reported cost: $14.2 million, up from Trump’s initial estimate of $1.5–$2 million.

Newser

• Pool dimensions: 2,030 feet long, holding approximately 6.75 million gallons of water.

Politico

• Algae source: supply lines dormant for eight weeks during construction.

Politico

The Interior Department described the algae as “residual” and part of the “normal startup process,” noting that the nanobubbler system will maintain an algae-free pool. The White House’s X account highlighted that the water is “ON” and the reflecting pool is “reflecting,” framing the project as a visual improvement for Washington, D.C.

CNN

Visitors expressed mixed reactions: Lara Harvey praised the reflection, while Kyra Brown said the pool “doesn’t look that much different.” Senator Richard Blumenthal warned that the project’s scale and cost reveal “troubling patterns of waste, fraud and abuse.” Fact-checkers noted Trump’s claim that Obama and Biden spent “hundreds of millions” was inaccurate; Obama’s 2012 renovation cost about $35 million, and no major work occurred under Biden.

Fact Check

CNN and local media captured workers skimming algae from the pool bottom on Wednesday. Residents noted that the dark “American Flag Blue” coating reduced the pool’s brightness, and some observed bird droppings and duck families near the water.

CNN

• Cost Estimates: Trump cited $1.5–$2 million; contracts show $14.2 million.

Newser

• Previous Spending: Trump claimed “hundreds of millions” by Obama and Biden; records indicate $35 million under Obama and negligible work under Biden.

Fact Check

• Algae Removal Timeline: Interior officials said removal would be completed “tomorrow,” but no definitive schedule was provided.

CNN

• “It was originally opened in 1922, but never functioned properly — now it does!” — Donald Trump, former President

New York Times

• “What you are seeing is residual algae from the supply lines, which have been sitting dormant for eight weeks while construction has been taking place.” — Katie Martin, Interior Department spokesperson

CNN

• “President Donald J. Trump is an expert builder who has fixed the reflecting pool for good unlike the failed and extremely costly attempt by Obama and Biden,” — Katie Martin, Interior Department spokesperson

Politico

• “I’m impressed, to be honest. It reflects beautifully,” — Lara Harvey, New Zealand resident

The Guardian

• “It doesn’t look that much different, honestly, to me.” — Kyra Brown, Washington, D.C. resident

CNN

• “While it is important that we maintain our national landmarks as they age, the scale, cost and permanence of these projects has revealed troubling patterns of waste, fraud and abuse across these episodes” — Senator Richard Blumenthal

The New Zealand Herald

The NPS will continue monitoring algae levels with the nanobubbler system, and federal oversight committees are expected to review the contracting process. Legal challenges concerning historic preservation and the pool’s reversible alterations remain pending.

CNN