I am a student at the Ohio State College of Public Health in Columbus, Ohio, and the facilitator and organizer of the Ohio Legionella Prevention Initiative.
To date, I have sent out email letters to over 600 Ohio school superintendents regarding legionella prevention. In these emails I included information to be used as guidance by school districts to develop water safety programs. They received the just released CDC Tool Kit on legionella prevention, a copy of The Ohio State University Hospitals anti-legionella plan, a link to the New York State cooling tower inspection and registration law, and a copy of an actual water safety plan sent to me by an Ohio school system.
The next step on the agenda is to tackle the major causes of legionella growth leading to Legionnaires Disease – chief among these causes are hot water heating tanks. Besides causing a great waste of energy, hot water tanks promote legionella growth by having different temperature levels inside the tanks.
Tankless hot water systems are clearly the answer for energy conservation, and for bacteria growth. Tankless water heaters can be arranged in banks to handle the hot water needs of schools. Recirculating pumps, built into some models, guarantee that the water left in the connecting pipe systems is kept at the proper temperature. Tankless water heaters also last longer than hot water tanks and take up much less space.
As the Ohio School Facilities Commission is now merged into your organization, you are nowthe issuer of Qualified School Cosntruction Bonds that were designed to provide funding for necessary upgrades such as tankless water heaters.
Can you please put me in touch with this office? These bonds can also be used for new construction, and it would be very important from a public health persspective that tankless systems be designed into new school buildings.
The Ohio State University
College of Public Health
Ohio Legionella Prevention Initiative
Legionella Water Safety Plan
1. Public Schools personnel drain, power wash and vacuum the cooling tower annually before start-up.
2. Once the cooling tower is filled Environmental Water will shock the tower with Towerchlor based on system volume.
3. The cooling towers are on a biocide program that is administered through a water treatment controller. The treatments used are a non-oxidizing biocide (Ultrakleen #1), and an oxidizing biocide (Stabrom 909) to control bacteria levels in the cooling tower. Monthly visits with XYZ Company testing for bacteria levels are performed and adjustments are made accordingly with reports.
4. Legionella testing is being initialized this July and will be tested by XYZ Laboratory.
The new statewide regulations require registration, testing, inspection, and certification of cooling towers. View the regulations; Register your cooling tower