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EXHIBIT 99.1
WASTE CONNECTIONS, INC. AND PREDECESSORS
SCHEDULE II -- VALUATION AND QUALIFYING ACCOUNTS
Years Ended December 31, 1997, 1998 and 1999
(in thousands)
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Additions
-------------------------- Deductions
Balance at Charged to Charged (Write-offs, Balance
Beginning Costs and to Other Net of at End
Description of Period Expenses Accounts Collections) of Period
----------- ----------- ----------- ----------- ----------- -----------
<S> <C> <C> <C> <C> <C>
Deducted from asset accounts:
Allowance for doubtful accounts:
Predecessors combined:
Nine months ended September 30, 1997 $ 81 $ 139 $ - $ (97) $ 123
Waste Connections, Inc.:
Year ended December 31, 1997 244 136 - (48) 332
Year ended December 31, 1998 332 696 - (209) 819
Year ended December 31, 1999 819 1,549 5 (913) 1,460
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