PCL-Stantec team awarded $552M contract for South Bay wastewater plant expansion

The U.S. section of the International Boundary and Water Commission issued a revised contract award to PCL Construction and Stantec for $552 million to expand the South Bay International Wastewater Treatment Plant's primary treatment facilities to 50 million gallons per day, with substantial completion scheduled for May 2031.

“The revised contract increases PCL's award to $552 million for expansion of the plant's primary treatment facilities, with substantial completion scheduled for 2031.”enr.com

• 1 source
• enr.com$552M Award Advances San Diego Border Wastewater Plant Expansion | Engineering News-RecordJeff YodersOct 16, 2026

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