Helping treat mine water to meet stringent EPA standards
Market
Water
Key Services
Construction
Preconstruction
Self-Perform
Strategic Partnerships
Delivery Method
Progressive Design-Build (PDB)Capacity
68 MGDThe challenge
CAS Constructors, an Alberici enterprise, was engaged to construct five wastewater treatment plants for The Doe Run Company at mines across southeast Missouri, each adhering to the Environmental Protection Agency’s (EPA) strict mandates due to a consent order. With the EPA pressing for rapid compliance, the challenge was to execute a design-build solution that would construct these plants within an aggressive schedule while ensuring that Doe Run would not face penalties for non-compliance.
Key Facts
The total program included 5 wastewater treatment plants
Engineering Excellence Award – American Council of Engineering Companies, Missouri Chapter
Challenge met
In response to stringent EPA regulations and an aggressive timeline, CAS Constructors orchestrated a strategic design-build joint venture to construct five wastewater treatment plants for The Doe Run Company at mines in southeast Missouri. Implementing the innovative CoMag System, these plants, ranging from 7.2 MGD to 26 MGD capacity, met EPA requirements for removing heavy metals and contaminants from mining wastewater.
During the construction of the first plant, our team uncovered a potential to enhance processing capacity significantly. This led to a reevaluation of equipment and processes, doubling capacity without major capital increases. The team extended this approach to ready other plants for future expansion. Alberici and CAS Constructors utilized their equipment fleet to maintain the ambitious schedule when faced with unimproved sites and rock excavation. The team’s solutions ensured Doe Run’s compliance and avoided penalties, demonstrating our strategic planning and effective execution.
Recent Projects
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