DN Tanks Concrete Tank Services (CTS), a division of DN Tanks, offers the industry’s most reliable inspection, rehabilitation and retrofit services for all types of concrete tanks regardless of design or who built them. Whether your tank needs immediate attention, a scheduled inspection, or just a trained eye to consult on retrofit options; call the most experienced name in the business: DN Tanks CTS.


When was the last time your tank had a checkup?

Whether your tank has a specific issue or you just need to schedule a routine inspection to meet regulatory requirements, our CTS team will start with a thorough evaluation of your tank. Once the inspection is complete, we analyze the findings and present them in a comprehensive, bound Inspection Report that is certified by one of our engineers. Not only will it include our observations and recommendations, but the associated costs as well.


  • Complete Structural Evaluation
  • Code/Standards Compliance Testing
  • Coating Evaluations
  • Photographic and/or Video Documentation
  • Condition Assessment Reports


We’ll make your old tank look like new again – inside and out.

We provide rehabilitation services for all different types of concrete tanks. Whether the issue is cosmetic, structural, operational, safety-related or if your facility is simply due for an upgrade, you can count on DN Tanks to come in, provide you with an accurate assessment, budget and project plan.

Often, time is of the essence. Particularly if the rehabilitation is addressing a water quality issue. We are accustomed to tight deadlines and will work with you to make sure the job is done right and on time.

  • Epoxy Injection
  • Interior/Exterior Coatings
  • Structural Repairs
  • Crack Repair
  • Leak Remediation
  • Interior/Exterior Cleanings

Aston, PA

DN Tanks rehabilitated three concrete water storage tanks for Chester Water Authority including the installation of 30″ sidewall manways, exterior aesthetic rehabilitations, and internal mixing systems.

Chaleroi, PA

Interior/exterior rehabilitation of this rectangular, conventionally reinforced pre-sedimentation tank included an interior elastomeric waterproof coating and exterior architectural coating system.

Fort Belvoir, VA

Abandoned, rectangular, concrete settling basin rehabilitation included concrete repairs, elastomeric coating, and safety handrails for conversion to CSO tank. Read More »

Henniker, NH

This 0.50 MG rectangular concrete tank was constructed in 1914. Rehabilitation included new exterior roof coating, interior coating and roof access hatch.


Improve performance, ensure compliance & extend the life of your concrete tank.

If your concrete tank needs to be retrofitted in order to comply with new regulatory requirements or simply to improve performance and better manage demand, we have the experience to get it done right.

Every job requires some level of customization to ensure that it’s done correctly and will last for generations to come. From a simple safety handrail system to a complete seismic upgrade, we bring the same level of commitment and expertise to every job.

  • Seismic Upgrades
  • Automatic Wash-Down Systems
  • Additional Inlet/Outlet Pipes
  • Additional Overflow Capacity
  • Rerouting Overflows
  • Safety and Security Enhancements
  • Improved or Additional Roof or Wall Access
  • Instrumentation Requirements
  • Baffle Walls/Mixing Systems
  • Antennae Support Structures

Liverpool, NY

After many years of uninterrupted service, this prestressed concrete CSO tank was retrofitted with a new influent pipe and an automated washdown system.

Lubbock, TX

DN Tanks CTS completed the retrofit of 3 concrete tanks for the City of Lubbock. The scope of work included the design and installation of new supply line connections with TCEQ compliant air gaps to existing concrete tanks.

Irvine, CA (Baker WTP)

DN Tanks CTS designed and installed multiple penetrations in the sidewall of an existing 16.0 MG prestressed concrete tank. The scope included the installation of two (2) 24″ inlet pipes and one (1) 24″ overflow pipe.

Lewisville, TX

Water treatment plant expansion included full investigation of clearwell tanks prior to structural modifications, new baffle wall systems, through wall outlet pipes, and re-routing of existing outlets. Read More »



Improve and maintain water quality in your tank.


Recognize design inadequacies, faulty construction and poorly performed repairs.


Meet current safety and regulatory requirements.


Extend the life of your concrete tank.