WESTLAKE, LA (KPLC) - For the next week or so, residents driving on Sampson Street may notice some bright green water in the ditches near Phillips 66. Don't worry; the water is harmless. officials said.
Carol Collins, spokeswoman, said the refinery is doing a "routine hydrostatic test" on one of its storage tanks.
"The tank is thoroughly cleaned of product, filled with water and a non-hazardous biodegradable dye, similar to food coloring, is added," Collins said in a news release. "The tank is then drained. The use of color water makes it easier to detect leaks and make repairs before the tank is put back in service."
Collins reiterated that "there is no cause for concern."
"The discharge process will take about seven days; the water should return to its normal clear color within a few days of being exposed to sunlight," she said.
This test is permitted and approved by the Louisiana Department of Environmental Quality.
For more information, visit www.phillips66.com.