The city's temporary fix to stop Tuolumne River water from entering and overwhelming Modesto's sewer system is holding, and city crews are working to reinforce and strengthen it.
Crews built a temporary barrier around a section of sewer trunk line along the riverbank Thursday to keep river water from entering a hole in the trunk line and the city's sewer system. That section of the trunk line was submerged under the rising river.
Utilities Director Larry Parlin said there remains a 90 percent chance that within several weeks Modesto will have to release partially treated waste-water that poses a risk to public health into the San Joaquin River because the sewer system is reaching its storage capacity.
But he said in addition to delaying the release of waste-water, the temporary fix means less waste-water would need to be released.
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Parlin said the city will have to wait until the river recedes and conditions along the riverbank improve before crews can make a permanent fix.