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High-Risk & Hazmat


High-Risk & Hazmat

Convert risk into results. Because Midco employs the most skilled divers in the nation, qualified to perform underwater operations that most companies are not, our high-risk commercial diving teams are able to deliver solutions for challenging problems in hazardous environments – all within a 24-hour response time.

Wastewater Plant Services

Midco offers a substantial list of hazmat or high-risk commercial diving services for wastewater plants, including cleaning, inspection, removal, and installation of malfunctioning parts, such as sluice gates, intakes, and outfalls. Midco is particularly efficient at clarifier repair and desludging, and we can quickly remove the hazardous solids that will eventually compromise the function of the clarifier.

Environmental remediation

Midco can help resolve the impacts of accidental or deliberate contamination. We specialize in the expert removal of barrels, hazardous waste, spills, and materials disposed in bodies of fresh or saltwater. We can even handle the elimination, or dredging, of contaminated sediments that pose hazardous or high-risk threats. Midco brings decades of experience to environmental remediation, and our hazmat divers are the best of the best.

Contaminated Water Diving

Whether the water contaminant is biological, chemical, or nuclear, Midco has the tools, team, and training to handle it. We offer a broad spectrum of services for situations where diving should be considered a last resort.

Our Experience
  • Clean-up of Hazardous Waste Sites
  • Handling And Disposal of Hazardous Waste
  • Treatment Facility Maintenance
  • Storage Facility Inspection
  • Environmental Remediation
  • Emergence Response
  • Nuclear Diving
  • High-Altitude Diving
  • Removal of Contaminated Sediment


Because we work in such extreme conditions, certifications are just the start. We start with the best of the best, and if we're not diving, we're drilling, retraining, and recertifying.


Commercial diving requires a special skill set: tradesmen who welcome the added challenge of working underwater, in some of the most demanding conditions on the planet. After nearly twenty years, we have what it takes to assemble the right team for your job.


Midco is the leading commercial diving operation in the United States because we go in where few others would. Our commitment to safety, process, and protocol gets the job done. In such harsh and challenging environments, experience makes all the difference.


At Midco Diving & Marine Services, we take on the toughest underwater conditions you can imagine. After nearly twenty years of commercial diving experience from underwater construction to municipal water tank repair – we’ve gone in where few others would even think. Highly contaminated water, confined work spaces, radiation, zero visibility, and high-altitude operations are all fair game. Whatever you’ve got in mind, we welcome the challenge.

Get in touch

Whether you're working through the details, or your deadline is set, we're interested in hearing from you. If you need to speak with us urgently, our dispatch line is staffed 24/7.

    CA General “A” Contractor License #1003247
    WA General Contractor License # MIDCODM825MT
    AZ General Contractor License # ROC350559


    We provide turnkey commercial diving services for unique industrial and municipal needs

    Our divers are experienced in underwater inspection, marine construction, repair projects, and so much more. From project design to execution and oversight, our staff of qualified and experienced project managers, DPICs, equipment operators, and certified commercial divers will complete your project safely, effectively, and efficiently. The scope of Midco’s commercial diving underwater service is substantial. Professional diving services include: