June 03, 2004 Keeping Your Drinking Water Safe After Area Storms

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Northwest La. Parishes – If you lost water pressure at your tap or if the water pressure was extremely low following recent storms in the area, Dr. Jimmy Guidry, State Health Officer, recommends that homeowners disinfect their water by any one of the following methods prior to consumption (including drinking, cooking, brushing teeth or preparing food):

Dr. Guidry noted that boiling is the most effective method of disinfection of water, particularly for people who have severely weakened immune systems (infected with HIV/AIDS, cancer and transplant patients taking immunosuppresive drugs, or people born with a weakened immune system) and for infants and elderly who wish to take extra precautions.

People obtaining water from a public water system (which is a system providing water to 15 homes and businesses or more) must continue to disinfect their drinking water by one of the above-listed methods until a public notice is issued by the water system stating the water is safe. This may take as long as two or three weeks before a water system is declared safe.

Continue to disinfect drinking water by one of the above-listed methods until such time as a parish health unit sanitarian reports that the sample results indicate the water to be safe. 

Owners and operators of all public water systems (those systems providing water to 15 homes and businesses or more) whose water pressure went down to 15 pounds per square inch or less are asked to batch chlorinate their system with a 50 milligram per liter (mg/L) slug leaving the plant or treatment site. Additionally, those systems having continuous disinfection capabilities are asked to boost their normal chlorine feed rate (following batch chlorination) so as to maintain a residual of at least two to three milligrams per liter (mg/L) once the system goes back on line.  Make arrangements with a parish health unit sanitarian to have water samples collected.

People who have been affected by loss of water service may expect some irregularities with their water while efforts are being made to ensure that the water is safe. It is expected that water may have an unusual chlorine odor as well as possible sediments appearing in the water while these special precautions are taking place.  Flushing household taps for a few minutes should fix this problem.

Contact:  Your Parish Health Unit. For a listing of health units in your area, please call 
(318) 676-7470.

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Surgeon General Ralph L. Abraham, M.D.

Interim Secretary Drew Maranto

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