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Legal, Environmental and Other Contingencies (Tables)
6 Months Ended
Mar. 31, 2022
Legal, Environmental and Other Contingencies  
Schedule of expected maturities of post-closure monitoring and maintenance activities (discounted)

Expected maturities of post-closure monitoring and maintenance activities (discounted)

    

 

Year Ending September 30,

2023

$

68

2024

 

89

2025

 

67

2026

68

2027 and thereafter

 

204

$

496