a. Remove east settling basin from service and drain. Plant operates off west settling basin. b. Install new orifice and collection header in east sedimentation basin. c. Isolate south filter gallery and drain down. Plant operates off north filter gallery. d. Install new tee and isolation valve in south filter gallery influent header. e. Return south filter gallery to service. f. Complete piping connection between the east settling basin and the south filter gallery influent header. g. Return south filter gallery to service. OWNER to operate south filter gallery off of new collection header only. h. After 1 week of successful operation, remove settled water effluent duct and north filters from service. i. Complete flume lining in settled water effluent duct. Complete concrete repairs in settled water effluent duct. j. Return settled water effluent duct to service. k. Construction that removes filters from operation shall be conducted between October 15, 2024, and May 15, 2025.
