The projects were inaugurated by President Hassan Rouhani via videoconference on Tuesday.
The mentioned projects including new water treatment facilities and a power plant phase, worth 1.49 trillion rials (around $338 million), were put into operation in the provinces of Tehran, Qazvin, Gilan and Mazandaran.
The power plant project involved a new steam unit at the Caspian Combined-Cycle Power Plant in northern Mazandaran province, which added 150 megawatts of power to the national grid.
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