Challenge
A sump tank located at a facility had multiple underground inlet lines. A leak surfaced on location and the client needed to test and prove all lines were intact prior to recommissioning the facility.
Constraints
Not all inlet lines were owned by the client – a third-party line drained into the sump tank from an adjacent facility. All the lines had to be tested and proven tight prior to putting facility back to normal operations. Due to harsh weather conditions, several sample ports were covered with a thick layer of ice.
Solution
The sump tank was exposed to determine the orientation of a third-party line. We dosed the stagnant drain lines with a QTA (Quantifiable Tagging Agent), installed required monitoring wells, and sampled for the presence of QTA to determine if any line sections were leaking.
Results
Sampling was conducted on all drain lines owned by the client resulting in a pass certification. The third-party line was determined to be the cause of the leak, and the client’s site returned to normal operations.