text: **Selected Balance Sheet Accounts**
  
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              [html]<thead><tr><td></td><td></td><td>post - closure and remeduation habitites and accrued sect - smoarance during the years ended December 31.2002.2003 and 2004 ( in millions ):</td><td>Allowance for < underline > Doubtful Accounts </ underline ></td><td>Closure, Post - Closure and Remediation</td></tr></thead><tbody><tr><td>Self - Insurance</td><td>Balance, December 31.2001</td><td>$ 19.0</td><td>$ 239.5</td><td>$</td></tr><tr><td>57.6</td><td>Additions charged to expense</td><td>11.2</td><td>26.1</td><td>138.1</td></tr><tr><td>Additions due to acquisitions, net of divestitures</td><td>. 2</td><td>5.0</td><td>—</td><td>Payments or usage.........................................................................................................................................................................................</td></tr><tr><td>_ ( 11.4 )</td><td>_ ( 14.8 )</td><td>_ ( 120.7 )</td><td>Balance, December 31.2002</td><td>19.0</td></tr><tr><td>255.8</td><td>75.0</td><td>Current portion</td><td>19.0</td><td>22.1</td></tr><tr><td>33.9</td><td>Long - term portion</td><td>Single</td><td>$ 233.7</td><td>$ __41.1</td></tr><tr><td>Allowance for Doubtful Accounts</td><td>Final Capping, Closure and Post - Closure</td><td>< underline > Remediation </ underline ></td><td>Self - Insurance</td><td>Balance, December 31.2002</td></tr><tr><td></td><td>$ 19.0</td><td>$ 196.9</td><td>$ 58.9</td><td>$</td></tr><tr><td>75.0</td><td>Cumulative effect of change in accounting</td><td>principle...............................................................................................................................................................................................</td><td>—</td><td>( 14.5 )</td></tr><tr><td>−</td><td>—</td><td>Non - cash asset additions</td><td>—</td><td>17.9</td></tr><tr><td>—</td><td>—</td><td>Accretion expense</td><td>—</td><td>12.7</td></tr><tr><td>—</td><td>—</td><td>Other additions charged to expense</td><td>10.4</td><td>—</td></tr><tr><td>—</td><td>189.5</td><td>Payments or usage......................................................................................................................................</td><td>__ ( 8.3 )</td><td>_ ( 4.2 )</td></tr><tr><td>_ ( 142.3 )</td><td>Balance, December 31.2003</td><td>19.0</td><td>204.7</td><td>54.7</td></tr><tr><td>122.2</td><td>Current portion</td><td>19.0</td><td>29.5</td><td>4.4</td></tr><tr><td>47.6</td><td>Long - term portion.........................</td><td>$ 175.2</td><td>$ 50.3</td><td>$ __74.6</td></tr><tr><td>Allowance for Doubtful Accounts</td><td>Final Capping, Closure and Post - Closure</td><td>Remediation</td><td>Self - Insurance</td><td>Balance, December 31.2003</td></tr><tr><td></td><td>$ 19.0</td><td>$ 204.7</td><td>$ 54.7</td><td>$ 122.2</td></tr><tr><td>Non - cash asset additions</td><td>—</td><td>19.6</td><td>−</td><td>−</td></tr><tr><td>Revisions in estimates of future cash flows recorded as non - cash asset additions...</td><td>—</td><td>( 4.3 )</td><td>—</td><td>—</td></tr><tr><td>Accretion expense</td><td>—</td><td>13.7</td><td>—</td><td>—</td></tr><tr><td>Other additions charged to expense</td><td>8.0</td><td>—</td><td>1.7</td><td>165.3</td></tr><tr><td>Additions due to acquisitions</td><td>—</td><td>. 6</td><td>—</td><td>—</td></tr><tr><td>Payments or usage</td><td>( 9.0 )</td><td>_ ( 17.5 )</td><td>_ ( 2.4 )</td><td>( 143.7 )</td></tr><tr><td>Balance, December 31.2004</td><td>18.0</td><td>216.8</td><td>54.0</td><td>143.8</td></tr><tr><td>Current portion.......................................................................................................................................</td><td>Table</td><td>14.6</td><td>2.7</td><td>_47.4</td></tr><tr><td>Long - term portion....................................</td><td>$ ___</td><td>$ 202.2</td><td>$ 51.3</td><td>$ 96.4</td></tr></tbody>
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