Conrady Consultant Services  is a nationwide professional  water storage tank and pipeline inspection company specializing in ROV inspection, ROV water tank inspection, ROV pipeline inspection, other ROV tank inspection, underwater tank inspection, and drained tank inspection.  We do both drained inspection and underwater inspection of all types and sizes of storage tanks except for petroleum  and chemical products.  We inspect inground, groundlevel, and elevated tanks constructed out of poured in place reinforced concrete, prestressed concrete, welded steel, riveted steel, bolted steel, glass lined bolted steel, fiberglass, and hydropneumatic tanks.

Low Cost Limited Elevated Tank Inspection

We offer you a very competitively priced elevated tank inspection whereby our inspector will view what can be seen of the tank interior from the upper access hatch without the inspector or an ROV entering the tank.  The tank remains in service and bacteriological testing is not required by any regulatory authority since the tank is not entered and the tank is not drained.  This inspection is advantageous in states that require bacteriological testing after anything enters the tank, even with a disinfected ROV which is generally accepted by almost all health authorities as not being able to contaminate the tank water as long as it was disinfected according to AWWA Standards.  It is also a low cost inspection alternative for utilities or companies that are willing to accept an inspection whereby not all of the tank is observed and the recommendations are based on the areas of the tank that could be observed from the upper access hatch.

Drained Inspections

The client is to have the tank drained prior to the arrival of the inspection team by using as much water as practical and then opening the drain and wasting the remaining water.   On elevated tanks that have a lower access hatch in the riser pipe, or a shell manhole on the balcony catwalk, the client is to have these opened prior to the arrival of the inspection team.   On groundlevel tanks, the client is to have the lower access hatch or shell manhole opened prior to the arrival of the inspection team.  The client and inspection team must meet all OSHA confined space requirements.  The client may wish to pressure wash the silt from the tank interior at the same time as the inspection or contract for this service with an other company.   After the inspection is completed, the tank is to disinfected according to their preferred method of AWWA Standard C652.  After the tank is disinfected, bacteriological samples must be taken by the client and delivered for analysis.  The tank can be placed back into service after negative results are obtained.

This is a drained inspection of a groundlevel welded steel tank.	This is a drained inspection of an elevated riveted steel tank.	Our P.E. inspector measuring the depth into metal of the pitting corrosion in a drained welded steel tank.

Pipeline Interior Inspections

Our ROV can inspect clean pipelines with water in them as small as 12" in diameter as long as they are not excessively corroded and up to 500' in length as long as there is a location or access where the ROV can be inserted into the pipe.  Our ROV can inspect larger diameter pipes that are excessively corroded.

Our reasonably priced pipeline inspections include the ROV video recorded onto a DVD and digital photos recorded onto a CD.

Our ROV being lowered into a clearwell at a water treatment plant for a pipeline interior inspection.	Our ROV inside a pipeline.  Note that the depth of water indicates that this pipe is buried 14' underground.	Our ROV pipe inspection determined that this valve was open and working.

Critical Phase And Final Acceptance Inspections

Please consider us for your critical phase and final acceptance inspections.  Although we have limited time for these inspections since we inspect 150 or so tanks nationwide each year, we occasionally have time to do these and it is always good to have an inspector see if anything was missed and if everything meets the specification requirements.

Our inspector testing the paint thickness during an interior recoat.	The contractor must repair this defect in the interior paint application.	Our inspector testing the paint application for holidays with a wet sponge tester during an interior recoat.

Warranty Inspections

After water has been inside a newly constructed tank or a tank that has been recoated for at least 8 months, all of the defects that will occur would have shown up and be detected by an inspection.  It is vitally important to have this inspection done before the end of the warranty period to locate, document, and describe all of the coating defects, both on the interior and exterior, for which the contractor is responsible to: pay you to drain the tank, fix all the defects at no expense, disinfect the tank, and pay you to refill the tank.  Not doing a warranty inspection at all is stupid.  Why gamble with the utility's money that everything was done right when the odds are heavily against it and the contractor has to pay to fix the defects at no cost to the utility?  If we find anything at all, it was well worth the expense.  The money spent by the utility for the inspection is insignificant compared to the expense of the repairs, should the utility have had to pay for them.

We do both ROV or drained warranty inspections, whichever the client desires.  All of the defects are documented, described, and located as necessary to the engineer or client so that a decision can be made as to if corrective actions should be made by the contractor.  Pictures only will be taken for a drained inspection.  Pictures and video will be taken of the interior and pictures will be taken of the exterior for an ROV inspection.