Dalam penyaliran atau drainage berbicara tentang pengontrolan air tanah dan air permukaan bumi yang biasanya mengganggu aktifitas tambang batubara. Faktor-faktor yang diperlukan dalam sistem pengontrolan penyaliran air tambang antara lain Sump terdiri dari sumur dalam atau sumur pompa, curah hujan rata-rata, debit air least-maksimum, kualitas air d

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