Understanding a Cooling Tower MPP Series: Part 5

Corrective Action

As part of an MPP it is required to denote how corrective action will be carried out as per DOH requirements shown in tables 8-1 and 8-2 of RCNY Chapter 8. The following items are categories that need to be monitored and have corrective action taken if necessary.

  • Bacteria dip slides that come back with a result greater than 10,000 cfu will require a corrective action which varies based on the level of the result, and if there are consecutive weeks of high results.
  • Positive Legionella concentrations greater than 10 cfu will also require differing forms of corrective action depending on the level.
  • Finally pH, Conductivity, Total Chlorine, and Inhibitor levels can also require corrective action if there is a pattern of being either below or above the recommended level limits.

Documenting these actions is crucial to ensure that proper necessary action is taken when a cooling tower returns what could be a dangerous result. Having this information contained within an MPP will allow the Department of Health to ensure that proper results exist as laid out within the plan. Below is a copy of the NYC tables outlining necessary corrective action.


MPP Series Part 1: https://metrogroupinc.com/understanding-mpp-series/

MPP Series Part 2: https://metrogroupinc.com/understanding-mpp-series-part-2/

MPP Series Part 3: https://metrogroupinc.com/understanding-cooling-tower-mpp-series-risk-assessment/#respond

MPP Series Part 4: https://metrogroupinc.com/understanding-cooling-tower-mpp-series-part-4/

For more information on cooling tower compliance: https://metrogroupinc.com/cooling-tower-compliance/