Columbia gas of maryland proposes further investments in safety through replacing and upgrading aging infrastructure

Plan creates jobs, supports economic development, promotes sustainability canonsburg, pa. , may 13, 2022 /prnewswire/ -- columbia gas of maryland, inc., a subsidiary of nisource inc. (nyse: ni), filed a request today with the maryland public service commission (psc) to approve revised rates for further upgrading and replacing portions of the company's underground natural gas distribution pipelines.
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