The American Water Works Association currently recommends inspection of drinking water tanks every 3 years. The frequency of cleaning is dependent on sediment accumulation and the requirements of your state and local regulatory agencies.
Compared to draining operations, in-service work allows for minimal water loss, sustained fire suppression capacity and no interruptions to your normal procedures and system operations.
LEC is in recognized compliance with every state’s regulatory agency and exceeds the national standards. We are in constant contact with all state agencies and are an on-going resource for local, regional and national regulatory authorities.
Absolutely not. LEC has worked with State and Federal agencies, most notably the American Water Works Association Water Research Foundation (formerly AWWARF), to research the benefits of cleaning water tanks in-service. In each test, there was no significant turbidity created during the cleaning and inspection processes. In each case, water quality parameters actually improved upon completion of LEC cleaning the water tank.
Yes. Diving is an approved method for inspection and cleaning of water storage tanks while they remain on line and in-service.
No. Our professional Dive Maintenance Technicians are totally encapsulated during the entire process. At no time do they come in contact with the water column. In addition, all of the cleaning and testing equipment entering your tank is strictly dedicated to potable use and is thoroughly disinfected in accordance with AWWA standards prior to use.
Most routine maintenance and repairs can be performed while the tank remains in-service. Leak detection and repair, coating and crack repair and plumbing modifications are routinely completed.