By STEFAN MODRICH
The city of Rosenberg said in a news release Friday it has begun reintroducing surface water into its water supply after independent lab test results indicated that water received from the Brazosport Water Authority (BWA) and the city was free of the brain-eating amoeba known as Naegleria Fowleri.
On Sept. 25, the city switched to groundwater following a temporary “Do Not Use” water alert issued by the Texas Commission on Environmental Quality (TCEQ) for the BWA surface water supply. The amoeba had been detected in Lake Jackson’s water supply and caused the death of a 6-year-old boy, according to multiple news reports.
Rosenberg said it plans to restore its original water supply, a blend of approximately 50 percent groundwater and 50 percent surface water from the BWA. The use of surface water is mandated by the Fort Bend Subsidence District.
The city activated all groundwater wells and began flushing the BWA water to isolate it from its water distribution system in response to the potential threat of Naegleria Fowleri on Sept. 25
TCEQ rescinded the “Do Not Use” order on Sept. 26 after determining the water incident was isolated to the city of Lake Jackson, which had a water boil notice in place until earlier this week.
Rosenberg remained on groundwater as an additional precaution and used an independent lab to verify that the amoeba was not present in its water supply, according to the city.
Samples were taken from the BWA surface water delivery point to the city and multiple locations around Rosenberg, the city said. Each sample returned negative and clear of amoeba, according to the city.
Rosenberg said the city’s water supply is currently rated “Superior” by TCEQ for meeting or exceeding all state standards.