One way to reduce the risk of an ammonia leak is by monitoring for leakage through the analysis of the secondary coolant (often brine) for signs of ammonia. The secondary coolant in an indirect Ammonia system must be tested no less than twice a year. Information Paper IP-BPV-2021-08-01 outlines the requirements for a secondary coolant analysis that your TSASK inspector will enforce during your next inspection.
As this policy is effective immediately, do not delay and wait for the inspection, but consider completing the analysis as early as possible. Detection of ammonia in the secondary coolant may indicate a leak and should be further investigated to determine if it is a current leak or a past resolved leak. Monitoring of future results may also indicate a leak.