A multi-million dollar renovation of the Lincoln Memorial Reflecting Pool has encountered significant technical failures, characterized by the delamination of the basin floor and the proliferation of algae.

林肯紀念館反思池一項耗資數百萬美元的翻新工程遭遇嚴重技術失效，其特徵為池底脫層以及藻類大量滋生。

The refurbishment, executed as part of a broader administrative initiative to modify the aesthetic of Washington, D.C. prior to the United States' 250th anniversary, involved the application of a deep blue sealant designated as 'American Flag Blue.' This project, completed by Atlantic Industrial Coatings under a no-bid contract, saw costs escalate from an initial estimate of approximately $1.8 million to roughly $14.7 million. Shortly after the basin was refilled, the water exhibited a green discoloration due to an algae bloom. In response, the Department of the Interior deployed National Park Service personnel to administer hydrogen peroxide and implement a 'nano bubble' filtration system. This latter system was installed via a $1.7 million no-bid contract awarded to Green Water Solutions, a firm owned by John J. Cafaro, a donor to the current administration.

此次翻新是作為一項更廣泛行政計畫的一部分，旨在美國 250 週年紀念前修改華盛頓特區的美學風格，其中使用了被命名為「美國之旗藍」的深藍色密封劑。該項目由 Atlantic Industrial Coatings 透過一份不需競標的合約完成，成本從最初估計的約 180 萬美元攀升至約 1,470 萬美元。在水池重新注水後不久，水面因藻類暴發而呈現綠色。對此，內政部派遣國家公園管理局的人員使用過氧化氫並實施一套「奈米氣泡」過濾系統。後者是透過一份 170 萬美元的免競標合約授予 Green Water Solutions，該公司由現任政府的捐助者 John J. Cafaro 所擁有。

Technical analysis suggests the rapid deterioration of the sealant—which began peeling within two weeks of completion—may be attributed to a confluence of factors. Experts hypothesize that the dark pigment of the sealant acted as a heat sink, increasing the water temperature in the shallow basin and thereby facilitating algal growth. Furthermore, the introduction of concentrated oxidizing agents, such as hydrogen peroxide, may have compromised the chemical bond between the coating and the concrete substrate. Other potential catalysts include inadequate surface preparation, UV radiation, and the inherent biological stresses of an open-air water feature.

技術分析顯示，密封劑在完工兩週內即開始脫落，這種快速劣化可能歸因於多種因素的共同作用。專家假設，密封劑的深色色素起到了熱沉的作用，提高了淺水池的水溫，進而促進藻類生長。此外，引入濃縮氧化劑（如過氧化氫）可能損害了塗層與混凝土基底之間的化學鍵。其他潛在觸發因素包括表面準備不足、紫外線輻射以及露天水景固有的生物壓力。

These developments have precipitated legal and political friction. The Cultural Landscape Foundation has initiated litigation, asserting that the administration bypassed requisite preservation reviews and regulatory procedures in an effort to expedite the project. While the administration maintains that the alterations fall within its legal authority and that the current cleanup efforts are effective, critics characterize the project as a fiscal waste and a failure of professional oversight.

這些進展導致了法律與政治上的摩擦。文化景觀基金會已提起訴訟，指稱政府為了加速項目進度而繞過了必要的保育審查與監管程序。儘管政府堅持認為這些變更在其法律權限之內，且目前的清理工作有效，但批評者將該項目定性為財政浪費以及專業監督的失敗。

The Lincoln Memorial Reflecting Pool remains under maintenance as the administration attempts to rectify the sealant failure and biological contamination before the July 4 celebrations.

林肯紀念館反思池仍處於維護狀態，政府試圖在 7 月 4 日慶祝活動前修正密封劑失效與生物污染問題。