Seawater desalination operator Poseidon is poised to take over the Agua Hedionda Lagoon maintenance dredging that has been done by local power companies since 1954.

Permits are being obtained for the work to begin in November or early December with expectations to finish by mid-April, said Poseidon Senior Vice President Peter MacLaggan at a meeting earlier this month of the Carlsbad Beach Preservation Commission.

Sand from the dredging will be spread north of the lagoon inlet for the first time in about five years, MacLaggan said.

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