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Water Tank Inspection


Municipal Water Tank Inspections

Maintenance is the key to keeping a municipal drinking water source healthy and safe for consumption. Like most industrial systems, the breakdown of a single component can lead to an overall weakness in the entire system. A functioning potable water system has many different subsystems and components that require inspection, general maintenance, and timely repair, and this is what Midco has been doing for nearly twenty years. Stay Operational with Midco.

The Challenge

Keeping potable water tanks and towers clean is important to health and safety but it often gets overlooked. A surprising number of public drinking water tanks lead straight to the tap – keep your tanks clean to prevent the transfer of pathogens, waterborne illness, or contaminating poisons, such as high concentrations of fluoride.

Our Approach

Our tank cleaning services are an indispensable part of keeping your potable water system safe and operational. Whether it's an on-grade, below grade, clearwell, pedestal, standpipe, or tower, Midco’s tank cleaning divers and equipment, used solely in potable water storage systems, will remove sand, sediment, flocculated material, lime and silt from your storage system. The divers themselves wear specialized suits, so at no time does the body come in contact with the stored water. Where divers can’t go, we send in our ROV. It’s a process we’ve refined over the last two decades, and our expertise is why Midco continues to be the leading provider year after year.

The Midco Difference

Midco has been providing potable water services and support for nearly twenty years, and that experience is just another one of the reasons we continue to be the leading potable water service provider in the nation. Regardless of the type of tank, or the issue, your first call should be Midco.

Key Maintenance Points
  • Raw Water Intake
  • Trash Rack
  • Fire Protection Systems
  • Traveling Water Screen
  • Air Burst and Chemical Systems
  • Valve and Gate
  • Leak Detection & Repair
  • Clearwell
  • Coating
  • Baffle Wall Curtain

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: