Legionella Remediation

Discovering Legionella in your facility’s water system can be greatly distressing with ensuing legal and financial consequences.  Blue Earth Products has experience developing and implementing custom remediation and prevention programs ideal for getting your system into compliance and staying in compliance with local governmental agencies.  Call today for a confidential consultation.

For example Blue Earth Products assisted a research hospital with a major Legionella contamination problem within their drinking water system. The goal of the remediation was to clear Legionella from the system wile having little or no adverse effects on the facility’s infrastructure and water quality. Therefore, distal points within the hospital distribution system were measured weekly for four weeks prior to the beginning of the Clearitas treatment program. The following metrics were measured at each point: bacterial, pH, copper levels, lead levels, Langelier and Ryznar Indices and disinfection by-products.

The hospital’s incoming water had an acceptable free chlorine disinfectant residual, therefore only the addition of Clearitas was needed, and was dosed at a rate of 1 gallon of Clearitas to 2,000 gallons of incoming water supply. Both the hot and cold water distribution systems were measured during the course of the remediation. Prior to the addition of Clearitas, the hospital had regular and lasting Legionella issues. Two weeks after beginning the Clearitas treatment program, Legionella counts went down and stayed very low throughout the remediation and chlorine residuals improved.

Overall, the addition of Clearitas to this hospital’s water supply had a rapid, impactful effect on the Legionella problem within the water distribution system. After two weeks, the Legionella counts went down to near undetectable levels and the chlorine residual within the hospital went up significantly. Moreover, the other water chemistries seem to be unchanged by the addition of Clearitas during this remediation. Little or no change occurred for pH, metal levels, corrosion, etc. Where changes were observed in this data, the numbers are relatively small and well below EPA guidelines. Thus, municipalities and facilities can use a Clearitas treatment program for both Legionella prevention and Legionella remediation. For specific values and measurements of the above mentioned metrics, please view the full case study provided in the downloads section of this website.