Professional. Qualified. Experienced.

Providing underwater inspections, construction, cleaning and maintenance of inland water tanks, towers, marinas and reservoirs.

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About Us

Advanced Diving Services

Advanced Diving Services is an inland commercial dive company. James M. Nilsson, a VIP lifetime member of the Biltmore Who's Who, started the company in April 2000 in Mesquite Nevada. His determination, knowledge, detailed comprehension of underwater construction, inspection and maintenance projects have earned contracts with N.A.S.A., the Environmental Protection Agency, the U.S. Air Force, the National Parks Service, public and private power and water Corporations and agencies from Washington State to Florida. Advanced Diving Services provides exceptional service and safety in underwater and confined space environments. We follow American Water Works Association AWWA, Association of Diving Contractors International ADCI, and OSHA standards, providing safe and experienced service for a wide range of tasks and client needs.

Call us at 866-237-3483

Our Services

A Wide Range of Services

Click the Advance Diving Services INC services below to learn more about what we do.

Hidden Bacteria

Bacteria and other contaminates can get a foothold in the sediment out of reach of the chlorine or other treatment chemicals entering the tank. Hidden in the sediment the bacteria can then grow and flourish creating a health risk. A nitrate eating bacteria can even deplete your chlorine levels leaving you at even greater risk.

Maintain a Healthy Water System

Removing the sediment and keeping your tank clean is the best way to maintain a healthy water system. The traditional method of cleaning tanks involves taking the tank out of service for several days while the sediment is removed with buckets and shovels. Dewatering the sediment often results in a much harder substance to remove requiring it to be broken up and chipped away often at the expense of the painted floor of the tank. Using our modern technology, potable water storage tanks may now be cleaned while they remain full of water with little disruption in service saving you time and money.

Keeping Your Tanks Clean

Keeping your water storage tanks clean may be one of the most overlooked maintenance procedures in the drinking water industry. Out of sight and out of mind, sediment in the bottom of your water storage tanks is never seen and rarely thought of. The sediment that builds up in almost all potable water tanks can be a habitat for bacteria and other contaminates like cryptosporidium that devastated the city of Milwaukee in the spring of 1993.

Contact us today! Clean and Safe drinking water is too important to wait another day.

Is this what your tanks are hiding?
Your tank should look like this!
  • Tank Inspection Services

Do you DRAIN your tanks to have them inspected or cleaned?

With Advanced Diving Services you don't have to!

When we inspect your tank, we do so with the utmost care and concern. We use both digital photos and narrated DVD to show you the conditions inside and outside the tank, both above and below water. We inspect the cathodic protection component, do pit and blister analysis, corrosion estimates, and we also inspect hatch, vent and ladder conditions. We cover all points per state regulations and follow all AWWA standards closely. When the inspection is complete, we provide you with the digital pictures, narrated DVD, and a written report on conditions and recommendations to remedy any problems. Remember, Advanced Diving Services can take care of any of your tank needs WITHOUT draining your tank, saving you both time and money!

Tank Cleaning

Because Advanced Diving Services has developed advanced methods for removing sediments and debris from water tanks, we are able to provide the client, YOU, with a cost effective solution with absolutely NO down time! Our patent pending Hydro-Vac produces no turbidity while the diver is in the process of cleaning the tanks and removing sediment. This process saves you money, water and time! Paul Walker states, "It's the most effective way to remove sediment from water storage facilities" and "their process actually removes protozoa spores that can deplete chlorine reserves and potentially cause other, more severe, health problems." So keep your community and your own family safe by cleaning and inspecting your tanks regular!

Every customer receives a DVD and a written report detailing the R.O.V. Inspection.

  • Potable/Non-Potable Water Storage Tank Inspections
  • Archaeological Research
  • Diver Assistance
  • Dam Installation
  • Oil Field : Platform & Sea Line
  • Power Plant Tank Inspections

The ROV (Remotely Operated Vehicle) is very effective for inspecting potable water tanks. The submersible unit "swims" through the tank via propellers and surveys the roof, seams, standpipes, and cables. Its camera captures footage while robotic grippers can take samples of corrosion. The ROV makes tank inspections safer, more affordable and, therefore, can be done more frequently. The ROV performs with the same inspection quality as would the services of a diver. The ROV is submersed into disinfectant as per AWWA regulations and guidelines before being lowered into the potable water tank or standpipe. It uses a 250-300 foot tether and is manipulated through the water by a trained ROV operator.

We are familiar with several kinds of public water feature repairs and services...

  • Expansion Joint Repairs
  • Stain Removal
  • Epoxy & Grout Repairs
  • Concrete Lamination Repairs
  • Leak Detection
  • Inspections
  • Inspect and Clean golf course ponds, removing algae and other invaders that can damage water systems.

Pool Inspections, Repairs, and Leak Testing

No draining of pool required.

  • Dye Testing
  • Epoxy & Grout Repairs
  • Special chemical and water resistant expansion grout that will expand to 7 times its original size.

Advanced Diving is specialized in servicing & maintaining underwater wildlife habitats. Advanced Diving has the ability to customize the work we do to fit each environments' specific needs.

Possessing state of the art equipment we are able to provide services such as...

  • Digital underwater colored photographs
  • Diver narrated underwater DVD etc.
  • Our certified commercial divers are skilled and trained.

Advanced Diving Services has been listed among the top 5 hazmat diving companies for the past several years. When it comes to hazmat diving, our clients can't take chances on using a fly by night diving company. That's why they choose us.

We're committed to delivering unparalleled results, no matter what the job. Combining our high standards of excellence, top notch equipment, and thorough procedures, we make sure our clients are well taken care of.

When it comes to hazmat diving, we offer 24 hour service provided by a trained team of professionals. We can do chemical and nuclear plant diving services, sludge removal services, and inspections, maintenance and repairs in wastewater treatment plants. We have state-of-the-art fully self-contained diving equipment and are able to adapt to any situation, no matter how extreme. We also use state-of-the-art video equipment to provide you with a real time view of our diving team at work.

Remember, Advanced Diving Services can take care of any of your hazmat diving needs!

Advanced Diving Services can do it all!

Whether your project is just off shore or out at sea, Advanced Diving provides a 24 hour a day emergency relief team to assist you in whatever task is at hand. Our team of highly experienced and qualified divers will take the time to research the problem, understand your unique situation, and get you back up and running again with minimal downtime.

We clean, inspect and repair hydroelectric dams, pipelines, intakes, stems and valves. We provide narrated DVDs and digital photographs of our work. We are certified at underwater welding and burning, offer ROV services when necessary, and do underwater diamond coring from a diameter of 1/2" up to 6". We also do steel and concrete cutting, epoxy injection into steel and concrete, and traveling water screens.

Advanced Diving Services is the right company when it comes to your underwater work!

Tank Cleaning, Inspection, Repair Quote Request

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Areas Serviced

Our crew provides Nationwide underwater R.O.V inspection Services

Advanced Diving Services INC offers experienced and certified commercial diving services in the following locations:

Call us at

We offer 24Hrs Emergency Services

We offer 24/7 Hrs Emergency Service

Contact Info


946 E 400 S
New Harmony, UT 84757


Washington State Contractor License # ADVANDS817P3

CA Public Works Registration # 1000006736