this increase is primarily due to higher average debt balances , including additional borrowings incurred in late 2009 primarily to support our strategic plans , and higher costs related to the execution and maintenance of our revolving credit facility executed in june 2010 ; and net income attributable to waste management , inc. of $ 953 million , or $ 1.98 per diluted share for 2010 , as compared with $ 994 million , or $ 2.01 per diluted share in 2009. the comparability of our 2010 results with 2009 has been affected by certain items management believes are not representative or indicative of our performance . our 2010 results were affected by the following : the recognition of pre-tax charges aggregating $ 55 million related to remediation and closure costs at five closed sites , which had a negative impact of $ 0.07 on our diluted earnings per share ; the recognition of net tax charges of $ 32 million due to refinements in estimates of our deferred state income taxes and the finalization of our 2009 tax returns , partially offset by favorable tax audit settlements , all of which , combined , had a negative impact of $ 0.07 on our diluted earnings per share ; 26 the recognition of a net favorable pre-tax benefit of $ 46 million for litigation and associated costs , which had a favorable impact of $ 0.06 on our diluted earnings per share ; and the recognition of net pre-tax charges of $ 26 million as a result of the withdrawal of certain of our union bargaining units from an underfunded multiemployer pension plan , which had a negative impact of $ 0.03 on our diluted earnings per share . our 2009 results were affected by the following : the recognition of a tax benefit of $ 130 million due principally to favorable adjustments from the carry-back of a capital loss , the recognition of state net operating losses and tax credits , the finalization of our 2008 tax returns , the impact of tax audit settlements and the revaluation of deferred taxes due to canadian tax rate reductions . these items had a combined favorable impact of $ 0.26 on our diluted earnings per share ; the recognition of impairment charges totaling $ 83 million due primarily to the abandonment of revenue management software and a change in expectations for the future operations of an inactive landfill in california . these items had a negative impact of $ 0.10 on our diluted earnings per share ; and the recognition of pre-tax charges of $ 50 million related to our 2009 restructuring , primarily related to severance and benefit costs . these restructuring charges reduced diluted earnings per share for the year by $ 0.06. we are pleased about the lower rate of decline in internal revenue growth from volumes that we experienced during 2010. on the pricing front , our fourth quarter 2010 results were the strongest of the year . for both the fourth quarter and the full year of 2010 , we outpaced our long-term pricing objective of achieving price increases in the range of 50 to 100 basis points above the consumer price index , or cpi . in 2011 , we will remain committed to our pricing discipline . based on an anticipated cpi run-rate of 1.0 % , we expect our overall revenue growth from yield to be approximately 2.0 % . additionally , we expect our revenue growth from volumes to be flat to slightly positive . however , we are mindful of trends toward waste reduction at the source , diversion from landfills and customers seeking alternative methods of disposal . we will continue to implement measures that we believe will grow our business , improve our current operations performance and enhance and expand our services . free cash flow as is our practice , we are presenting free cash flow , which is a non-gaap measure of liquidity , in our disclosures because we use this measure in the evaluation and management of our business . we define free cash flow as net cash provided by operating activities , less capital expenditures , plus proceeds from divestitures of businesses ( net of cash divested ) and other sales of assets . we believe it is indicative of our ability to pay our quarterly dividends , repurchase common stock , fund acquisitions and other investments and , in the absence of refinancings , to repay our debt obligations . free cash flow is not intended to replace net cash provided by operating activities ,  which is the most comparable u.s. gaap measure . however , we believe free cash flow gives investors useful insight into how we view our liquidity . nonetheless , the use of free cash flow as a liquidity measure has material limitations because it excludes certain expenditures that are required or that we have committed to , such as declared dividend payments and debt service requirements . our calculation of free cash flow and reconciliation to net cash provided by operating activities is shown in the table below ( in millions ) , and may not be the same as similarly titled measures presented by other companies : replace_table_token_9_th 27 our free cash flow was consistent in both years , however our cash provided by operating activities decreased $ 87 million and our capital expenditures decreased $ 75 million . the decrease in cash provided by operating activities was primarily due to net unfavorable changes in working capital , increased interest payments and higher income tax payments . these decreases in operating cash flow were partially offset by a cash benefit of $ 77 million resulting from a litigation settlement that occurred in april 2010. payments made in 2009 related to severance and benefits costs associated with our 2009 restructuring also affected the comparability of our operating cash flow for the periods presented . story_separator_special_tag internally developed estimates are based on : management 's judgment and experience in remediating our own and unrelated parties ' sites ; information available from regulatory agencies as to costs of remediation ; the number , financial resources and relative degree of responsibility of other prps who may be liable for remediation of a specific site ; and the typical allocation of costs among prps unless the actual allocation has been determined . 31 asset impairments our long-lived assets , including landfills and landfill expansions , are carried on our financial statements based on their cost less accumulated depreciation or amortization . we monitor the carrying value of our long-lived assets for potential impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable . these events or changes in circumstances are referred to as impairment indicators . if an impairment indicator occurs , we perform a test of recoverability by comparing the carrying value of the asset or asset group to its undiscounted expected future cash flows . if cash flows can not be separately and independently identified for a single asset , we will determine whether an impairment has occurred for the group of assets for which we can identify the projected cash flows . if the carrying values are in excess of undiscounted expected future cash flows , we measure any impairment by comparing the fair value of the asset or asset group to its carrying value . fair value is generally determined by considering ( i ) internally developed discounted projected cash flow analysis of the asset or asset group ; ( ii ) actual third-party valuations ; and or ( iii ) information available regarding the current market for similar assets . if the fair value of an asset or asset group is determined to be less than the carrying amount of the asset or asset group , an impairment in the amount of the difference is recorded in the period that the impairment indicator occurs and is included in the  ( income ) expense from divestitures , asset impairments and unusual items line item in our consolidated statement of operations . estimating future cash flows requires significant judgment and projections may vary from the cash flows eventually realized , which could impact our ability to accurately assess whether an asset has been impaired . there are other considerations for impairments of landfills and goodwill , as described below . landfills  certain impairment indicators require significant judgment and understanding of the waste industry when applied to landfill development or expansion projects . for example , a regulator may initially deny a landfill expansion permit application though the expansion permit is ultimately granted . in addition , management may periodically divert waste from one landfill to another to conserve remaining permitted landfill airspace . therefore , certain events could occur in the ordinary course of business and not necessarily be considered indicators of impairment of our landfill assets due to the unique nature of the waste industry . goodwill  at least annually , we assess our goodwill for impairment . we assess whether an impairment exists by comparing the fair value of each operating segment to its carrying value , including goodwill . we use a combination of two valuation methods , a market approach and an income approach , to estimate the fair value of our operating segments . fair value computed by these two methods is arrived at using a number of factors , including projected future operating results , economic projections , anticipated future cash flows , comparable marketplace data and the cost of capital . there are inherent uncertainties related to these factors and to our judgment in applying them to this analysis . however , we believe that these two methods provide a reasonable approach to estimating the fair value of our operating segments . the market approach estimates fair value by measuring the aggregate market value of publicly-traded companies with similar characteristics of our business as a multiple of their reported cash flows . we then apply that multiple to our operating segments ' cash flows to estimate their fair values . we believe that this approach is appropriate because it provides a fair value estimate using valuation inputs from entities with operations and economic characteristics comparable to our operating segments . the income approach is based on the long-term projected future cash flows of our operating segments . we discount the estimated cash flows to present value using a weighted-average cost of capital that considers factors such as the timing of the cash flows and the risks inherent in those cash flows . we believe that this approach is appropriate because it provides a fair value estimate based upon our operating segments ' expected long-term performance considering the economic and market conditions that generally affect our business . additional impairment assessments may be performed on an interim basis if we encounter events or changes in circumstances that would indicate that , more likely than not , the carrying value of goodwill has been impaired . see note 6 to the consolidated financial statements for additional information related to goodwill impairment considerations made during the reported periods . 32 deferred income taxes deferred income taxes are based on the difference between the financial reporting and tax basis of assets and liabilities . the deferred income tax provision represents the change during the reporting period in the deferred tax assets and deferred tax liabilities , net of the effect of acquisitions and dispositions . deferred tax assets include tax loss and credit carry-forwards and are reduced by a valuation allowance if , based on available evidence , it is more likely than not that some portion or all of the deferred tax assets will not be realized . significant judgment is required in assessing the timing and amounts of deductible and taxable items . we establish reserves for uncertain tax positions when ,

net cash used in investing activities  the most significant items affecting the comparison of our investing cash flows for the periods presented are summarized below : acquisitions  our spending on acquisitions increased from $ 280 million and $ 281 million during 2008 and 2009 , respectively , to $ 407 million in 2010. during the second quarter of 2010 , we paid approximately $ 150 million to acquire a waste-to-energy facility in portsmouth , virginia . we continue to focus on accretive acquisitions and growth opportunities that will contribute to improved future results of operations and enhance and expand our existing service offerings . capital expenditures  we used $ 1,104 million during 2010 for capital expenditures , compared with $ 1,179 million in 2009 and $ 1,221 million in 2008. net receipts from restricted funds  net cash received from our restricted trust and escrow accounts , which are largely generated from the issuance of tax-exempt bonds for our capital needs , contributed $ 48 million to our investing activities in 2010 compared with $ 196 million in 2009 and $ 178 million in 2008. the significant decrease in cash received from our restricted trust and escrow accounts during 2010 is due to a decrease in tax-exempt borrowings .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```net cash used in investing activities  the most significant items affecting the comparison of our investing cash flows for the periods presented are summarized below : acquisitions  our spending on acquisitions increased from $ 280 million and $ 281 million during 2008 and 2009 , respectively , to $ 407 million in 2010. during the second quarter of 2010 , we paid approximately $ 150 million to acquire a waste-to-energy facility in portsmouth , virginia . we continue to focus on accretive acquisitions and growth opportunities that will contribute to improved future results of operations and enhance and expand our existing service offerings . capital expenditures  we used $ 1,104 million during 2010 for capital expenditures , compared with $ 1,179 million in 2009 and $ 1,221 million in 2008. net receipts from restricted funds  net cash received from our restricted trust and escrow accounts , which are largely generated from the issuance of tax-exempt bonds for our capital needs , contributed $ 48 million to our investing activities in 2010 compared with $ 196 million in 2009 and $ 178 million in 2008. the significant decrease in cash received from our restricted trust and escrow accounts during 2010 is due to a decrease in tax-exempt borrowings .
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 Suspicious Activity Report : this increase is primarily due to higher average debt balances , including additional borrowings incurred in late 2009 primarily to support our strategic plans , and higher costs related to the execution and maintenance of our revolving credit facility executed in june 2010 ; and net income attributable to waste management , inc. of $ 953 million , or $ 1.98 per diluted share for 2010 , as compared with $ 994 million , or $ 2.01 per diluted share in 2009. the comparability of our 2010 results with 2009 has been affected by certain items management believes are not representative or indicative of our performance . our 2010 results were affected by the following : the recognition of pre-tax charges aggregating $ 55 million related to remediation and closure costs at five closed sites , which had a negative impact of $ 0.07 on our diluted earnings per share ; the recognition of net tax charges of $ 32 million due to refinements in estimates of our deferred state income taxes and the finalization of our 2009 tax returns , partially offset by favorable tax audit settlements , all of which , combined , had a negative impact of $ 0.07 on our diluted earnings per share ; 26 the recognition of a net favorable pre-tax benefit of $ 46 million for litigation and associated costs , which had a favorable impact of $ 0.06 on our diluted earnings per share ; and the recognition of net pre-tax charges of $ 26 million as a result of the withdrawal of certain of our union bargaining units from an underfunded multiemployer pension plan , which had a negative impact of $ 0.03 on our diluted earnings per share . our 2009 results were affected by the following : the recognition of a tax benefit of $ 130 million due principally to favorable adjustments from the carry-back of a capital loss , the recognition of state net operating losses and tax credits , the finalization of our 2008 tax returns , the impact of tax audit settlements and the revaluation of deferred taxes due to canadian tax rate reductions . these items had a combined favorable impact of $ 0.26 on our diluted earnings per share ; the recognition of impairment charges totaling $ 83 million due primarily to the abandonment of revenue management software and a change in expectations for the future operations of an inactive landfill in california . these items had a negative impact of $ 0.10 on our diluted earnings per share ; and the recognition of pre-tax charges of $ 50 million related to our 2009 restructuring , primarily related to severance and benefit costs . these restructuring charges reduced diluted earnings per share for the year by $ 0.06. we are pleased about the lower rate of decline in internal revenue growth from volumes that we experienced during 2010. on the pricing front , our fourth quarter 2010 results were the strongest of the year . for both the fourth quarter and the full year of 2010 , we outpaced our long-term pricing objective of achieving price increases in the range of 50 to 100 basis points above the consumer price index , or cpi . in 2011 , we will remain committed to our pricing discipline . based on an anticipated cpi run-rate of 1.0 % , we expect our overall revenue growth from yield to be approximately 2.0 % . additionally , we expect our revenue growth from volumes to be flat to slightly positive . however , we are mindful of trends toward waste reduction at the source , diversion from landfills and customers seeking alternative methods of disposal . we will continue to implement measures that we believe will grow our business , improve our current operations performance and enhance and expand our services . free cash flow as is our practice , we are presenting free cash flow , which is a non-gaap measure of liquidity , in our disclosures because we use this measure in the evaluation and management of our business . we define free cash flow as net cash provided by operating activities , less capital expenditures , plus proceeds from divestitures of businesses ( net of cash divested ) and other sales of assets . we believe it is indicative of our ability to pay our quarterly dividends , repurchase common stock , fund acquisitions and other investments and , in the absence of refinancings , to repay our debt obligations . free cash flow is not intended to replace net cash provided by operating activities ,  which is the most comparable u.s. gaap measure . however , we believe free cash flow gives investors useful insight into how we view our liquidity . nonetheless , the use of free cash flow as a liquidity measure has material limitations because it excludes certain expenditures that are required or that we have committed to , such as declared dividend payments and debt service requirements . our calculation of free cash flow and reconciliation to net cash provided by operating activities is shown in the table below ( in millions ) , and may not be the same as similarly titled measures presented by other companies : replace_table_token_9_th 27 our free cash flow was consistent in both years , however our cash provided by operating activities decreased $ 87 million and our capital expenditures decreased $ 75 million . the decrease in cash provided by operating activities was primarily due to net unfavorable changes in working capital , increased interest payments and higher income tax payments . these decreases in operating cash flow were partially offset by a cash benefit of $ 77 million resulting from a litigation settlement that occurred in april 2010. payments made in 2009 related to severance and benefits costs associated with our 2009 restructuring also affected the comparability of our operating cash flow for the periods presented . story_separator_special_tag internally developed estimates are based on : management 's judgment and experience in remediating our own and unrelated parties ' sites ; information available from regulatory agencies as to costs of remediation ; the number , financial resources and relative degree of responsibility of other prps who may be liable for remediation of a specific site ; and the typical allocation of costs among prps unless the actual allocation has been determined . 31 asset impairments our long-lived assets , including landfills and landfill expansions , are carried on our financial statements based on their cost less accumulated depreciation or amortization . we monitor the carrying value of our long-lived assets for potential impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable . these events or changes in circumstances are referred to as impairment indicators . if an impairment indicator occurs , we perform a test of recoverability by comparing the carrying value of the asset or asset group to its undiscounted expected future cash flows . if cash flows can not be separately and independently identified for a single asset , we will determine whether an impairment has occurred for the group of assets for which we can identify the projected cash flows . if the carrying values are in excess of undiscounted expected future cash flows , we measure any impairment by comparing the fair value of the asset or asset group to its carrying value . fair value is generally determined by considering ( i ) internally developed discounted projected cash flow analysis of the asset or asset group ; ( ii ) actual third-party valuations ; and or ( iii ) information available regarding the current market for similar assets . if the fair value of an asset or asset group is determined to be less than the carrying amount of the asset or asset group , an impairment in the amount of the difference is recorded in the period that the impairment indicator occurs and is included in the  ( income ) expense from divestitures , asset impairments and unusual items line item in our consolidated statement of operations . estimating future cash flows requires significant judgment and projections may vary from the cash flows eventually realized , which could impact our ability to accurately assess whether an asset has been impaired . there are other considerations for impairments of landfills and goodwill , as described below . landfills  certain impairment indicators require significant judgment and understanding of the waste industry when applied to landfill development or expansion projects . for example , a regulator may initially deny a landfill expansion permit application though the expansion permit is ultimately granted . in addition , management may periodically divert waste from one landfill to another to conserve remaining permitted landfill airspace . therefore , certain events could occur in the ordinary course of business and not necessarily be considered indicators of impairment of our landfill assets due to the unique nature of the waste industry . goodwill  at least annually , we assess our goodwill for impairment . we assess whether an impairment exists by comparing the fair value of each operating segment to its carrying value , including goodwill . we use a combination of two valuation methods , a market approach and an income approach , to estimate the fair value of our operating segments . fair value computed by these two methods is arrived at using a number of factors , including projected future operating results , economic projections , anticipated future cash flows , comparable marketplace data and the cost of capital . there are inherent uncertainties related to these factors and to our judgment in applying them to this analysis . however , we believe that these two methods provide a reasonable approach to estimating the fair value of our operating segments . the market approach estimates fair value by measuring the aggregate market value of publicly-traded companies with similar characteristics of our business as a multiple of their reported cash flows . we then apply that multiple to our operating segments ' cash flows to estimate their fair values . we believe that this approach is appropriate because it provides a fair value estimate using valuation inputs from entities with operations and economic characteristics comparable to our operating segments . the income approach is based on the long-term projected future cash flows of our operating segments . we discount the estimated cash flows to present value using a weighted-average cost of capital that considers factors such as the timing of the cash flows and the risks inherent in those cash flows . we believe that this approach is appropriate because it provides a fair value estimate based upon our operating segments ' expected long-term performance considering the economic and market conditions that generally affect our business . additional impairment assessments may be performed on an interim basis if we encounter events or changes in circumstances that would indicate that , more likely than not , the carrying value of goodwill has been impaired . see note 6 to the consolidated financial statements for additional information related to goodwill impairment considerations made during the reported periods . 32 deferred income taxes deferred income taxes are based on the difference between the financial reporting and tax basis of assets and liabilities . the deferred income tax provision represents the change during the reporting period in the deferred tax assets and deferred tax liabilities , net of the effect of acquisitions and dispositions . deferred tax assets include tax loss and credit carry-forwards and are reduced by a valuation allowance if , based on available evidence , it is more likely than not that some portion or all of the deferred tax assets will not be realized . significant judgment is required in assessing the timing and amounts of deductible and taxable items . we establish reserves for uncertain tax positions when ,

