Northern Natural Gas Company
Fifth Revised Volume No. 1
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Table of Contents
DescriptionEffective DateFirst Revised Sheet No. 0 02/25/2006Sixth Revised Sheet No. 1 02/21/2009Seventh Revised Sheet No. 2 02/21/2009Ninth Revised Sheet No. 3 10/01/2007Tenth Revised Sheet No. 4 06/05/2003Ninth Revised Sheet No. 5 10/01/2001Ninth Revised Sheet No. 6 06/16/2003Fifth Revised Sheet No. 7 10/22/2001First Revised Sheet No. 8 10/01/2007Original Sheet No. 11 11/01/1993Original Sheet No. 12 11/01/1993First Revised Sheet No. 20 10/01/2007Second Revised Sheet No. 21 04/17/2010Original Sheet No. 22 11/01/1993First Revised Sheet No. 25 08/16/2010Third Revised Sheet No. 26 04/17/2010First Revised Sheet No. 27 11/01/1993Original Sheet No. 40 11/01/199379 Revised Sheet No. 50 04/01/201080 Revised Sheet No. 51 04/01/201043 Revised Sheet No. 52 04/01/201083 Revised Sheet No. 53 04/01/20101 Revised 35 Revised Sheet No. 54 09/01/201036 Revised Sheet No. 54 11/01/2010Eighth Revised Sheet No. 54A 04/17/2010Sixth Revised Sheet No. 54B 04/17/201012 Revised Sheet No. 55 11/01/2006Fourth Revised Sheet No. 55 12/31/9999Original Sheet No. 55A 06/01/200821 Revised Sheet No. 56 11/01/2006Sheet No. 57 06/01/200033 Revised Sheet No. 59 10/01/200917 Revised Sheet No. 59A 10/01/200938 Revised Sheet No. 60 04/01/201018 Revised Sheet No. 60A 04/01/201028 Revised Sheet No. 61 04/01/20101 Revised 30 Revised Sheet No. 62 09/01/201031 Revised Sheet No. 62 11/01/201028 Revised Sheet No. 63 11/01/200827 Revised Sheet No. 64 11/01/2008Second Revised Sheet No. 65 08/16/201053 Revised Sheet No. 66 09/01/201056 Revised Sheet No. 66A 12/01/200924 Revised Sheet No. 66B 09/01/201015 Revised Sheet No. 66C 02/15/200915 Revised Sheet No. 66D 02/15/2009Third Revised Sheet No. 66E 02/15/200917 Revised Sheet No. 66B.01 10/01/200914 Revised Sheet No. 66B.01a 05/01/2010Sixth Revised Sheet No. 66B.01B 05/01/2010Fifth Revised Sheet No. 66B.01c 09/01/201010 Revised Sheet No. 66B.02 09/01/2010Seventh Revised Sheet No. 66B.03 06/01/2009Eighth Revised Sheet No. 66B.04 06/01/2009Second Revised Sheet No. 66B.05 03/01/2009Third Revised Sheet No. 66B.06 02/03/2010Fifth Revised Sheet No. 66B.07 03/01/2009Second Revised Sheet No. 66B.08 03/01/2009Fifth Revised Sheet No. 66B.09 10/01/2009Original Sheet No. 66B.10 11/01/2008Third Revised Sheet No. 66B.11 06/01/2009First Revised Sheet No. 66B.12 03/01/2009Second Revised Sheet No. 66B.13 04/01/2009Second Revised Sheet No. 66B.13a 04/01/2009Sixth Revised Sheet No. 66B.14 05/01/2010Fourth Revised Sheet No. 66B.15 06/01/2009Second Revised Sheet No. 66B.16 04/17/2010Second Revised Sheet No. 66B.17 07/01/2009First Revised Sheet No. 66B.18 11/01/2009Second Revised Sheet No. 66B.19 07/01/2009First Revised Sheet No. 66B.20 05/01/2009Second Revised Sheet No. 66B.21 11/01/2009Original Sheet No. 66B.22 05/01/2009First Revised Sheet No. 66B.23 07/01/2009First Revised Sheet No. 66B.24 07/01/2009First Revised Sheet No. 66B.25 04/01/2010Second Revised Sheet No. 66B.26 09/01/2009First Revised Sheet No. 66B.27 04/01/2010First Revised Sheet No. 66B.28 05/01/2010First Revised Sheet No. 66B.29 04/01/2010First Revised Sheet No. 66B.30 05/01/2010Original Sheet No. 66B.31 11/01/2009Original Sheet No. 66B.32 11/01/2009Original Sheet No. 66B.33 11/01/2009Original Sheet No. 66B.34 11/01/200917 Revised Sheet No. 66B.35 05/01/2010Third Revised Sheet No. 66B.36 09/01/2010First Revised Sheet No. 66B.37 09/01/2010First Revised Sheet No. 66B.38 09/01/2010First Revised Sheet No. 66B.39 09/01/2010First Revised Sheet No. 66B.40 09/01/2010Original Sheet No. 66B.41 05/01/2010Original Sheet No. 66B.42 09/01/2010Original Sheet No. 66B.43 09/01/2010Tenth Revised Sheet No. 67 10/25/2010Fifth Revised Sheet No. 67A 10/12/2010Second Revised Sheet No. 67B 10/25/2010Eighth Revised Sheet No. 68 11/01/1998First Revised Sheet No. 69 02/15/2009Original Sheet No. 80 02/15/2009Second Revised Sheet No. 80A 10/12/2010Seventh Revised Sheet No. 80B 10/25/2010Original Sheet No. 81 02/15/2009Third Revised Sheet No. 100 04/17/2010Tenth Revised Sheet No. 101 08/16/2010Fourth Revised Sheet No. 102 08/16/2010Seventh Revised Sheet No. 103 04/17/2010Sixth Revised Sheet No. 104 04/17/2010Fourth Revised Sheet No. 105 02/13/2003Fourth Revised Sheet No. 106 11/01/1998Sub Second Revised Sheet No. 107 11/01/1998First Revised Sheet No. 108 07/07/1996Eighth Revised Sheet No. 109 04/17/2010Third Revised Sheet No. 110 11/22/2003Fourth Revised Sheet No. 111 04/17/2010First Revised Sheet No. 112 04/01/1995First Revised Sheet No. 113 04/01/1995Sixth Revised Sheet No. 114 08/16/2010Ninth Revised Sheet No. 115 04/17/2010Sixth Revised Sheet No. 116 08/16/2010Sixth Revised Sheet No. 117 08/16/2010Fifth Revised Sheet No. 118 08/16/2010Seventh Revised Sheet No. 119 04/17/2010Third Revised Sheet No. 120 10/01/2007Second Revised Sheet No. 121 11/22/2003Original Sheet No. 122 11/01/1993Fourth Revised Sheet No. 123 08/01/2004Fourth Revised Sheet No. 124 06/01/1999Fifth Revised Sheet No. 125 04/17/2010Fourth Revised Sheet No. 125A 08/16/2010Original Sheet No. 125B 09/27/2000Second Revised Sheet No. 125B 08/16/2010Fifth Revised Sheet No. 125C 04/17/2010Original Sheet No. 125D 09/27/2000Third Revised Sheet No. 125D 04/17/2010Original Sheet No. 125E 09/27/2000Fourth Revised Sheet No. 125E 04/17/2010Original Sheet No. 125F 09/27/2000Fourth Revised Sheet No. 125F 04/17/2010Third Revised Sheet No. 126 10/01/2007Second Revised Sheet No. 127 11/28/2005Second Revised Sheet No. 128 08/16/2010Fourth Revised Sheet No. 129 04/17/2010Third Revised Sheet No. 130 06/11/2007Second Revised Sheet No. 131 08/01/2004Sixth Revised Sheet No. 132 06/01/1999Fourth Revised Sheet No. 133 04/17/2010Fourth Revised Sheet No. 134 06/01/200812 Revised Sheet No. 135 04/17/2010Eighth Revised Sheet No. 135A 04/17/2010Sixth Revised Sheet No. 135B 06/01/2008Sixth Revised Sheet No. 135C 06/01/200814 Revised Sheet No. 135D 09/26/200915 Revised Sheet No. 135D 04/17/2010Ninth Revised Sheet No. 136 05/24/2008Second Revised Sheet No. 137 09/01/2004Eighth Revised Sheet No. 138 06/07/2008Ninth Revised Sheet No. 138 04/17/2010Sixth Revised Sheet No. 139 06/07/2008Seventh Revised Sheet No. 139 04/17/2010Fifth Revised Sheet No. 140 08/01/2006Sixth Revised Sheet No. 141 07/09/2007Seventh Revised Sheet No. 141 06/07/2008Ninth Revised Sheet No. 142 07/09/2007Fourth Revised Sheet No. 142A 07/09/2007Second Revised Sheet No. 142B 07/09/2007Original Sheet No. 142B 12/31/9999Eighth Revised Sheet No. 142C 09/26/2009Ninth Revised Sheet No. 142C 04/17/2010Original Sheet No. 142C 12/31/9999First Revised Sheet No. 142D 04/17/2010Original Sheet No. 142E 01/01/2004Fifth Revised Sheet No. 143 02/21/200920 Revised Sheet No. 144 09/26/200921 Revised Sheet No. 144 04/17/2010Fourth Revised Sheet No. 145 02/21/2009Tenth Revised Sheet No. 146 07/09/2007Third Revised Sheet No. 146A 04/17/2010Sixth Revised Sheet No. 147 07/09/2007Third Revised Sheet No. 148 11/22/2003Second Revised Sheet No. 149 11/01/2003First Revised Sheet No. 150 11/01/1994First Revised Sheet No. 151 11/01/1994Second Revised Sheet No. 152 01/29/2000Third Revised Sheet No. 153 04/01/2008Substitute Ninth Revised Sheet No. 154 08/16/2010Seventh Revised Sheet No. 154 12/31/9999Substitute Fourth Revised Sheet No. 155 08/16/2010Second Revised Sheet No. 156 09/24/2006First Revised Sheet No. 157 09/24/2006Second Revised Sheet No. 158 09/24/2006First Revised Sheet No. 159 09/24/2006Second Revised Sheet No. 160 09/24/2006Second Revised Sheet No. 161 09/24/2006Second Revised Sheet No. 162 09/24/2006Fourth Revised Sheet No. 163 09/24/2006First Revised Sheet No. 164 09/24/2006Original Sheet No. 165 08/01/2007Original Sheet No. 166 08/01/2007First Revised Sheet No. 167 04/17/2010Sheet No. 168 08/01/200710 Revised Sheet No. 200 04/17/201014 Revised Sheet No. 201 04/17/2010First Revised Sheet No. 201A 09/24/2006First Revised Sheet No. 201B 09/24/2006Original Sheet No. 201C 02/25/2006Second Revised Sheet No. 202 11/01/2003Fourth Revised Sheet No. 203 11/01/2007Twelfth Revised Sheet No. 204 02/25/2006Sixth Revised Sheet No. 205 09/29/2010First Revised Sheet No. 205A 07/09/2007Seventh Revised Sheet No. 206 02/21/2009Fifth Revised Sheet No. 206A 11/01/2007Original Sheet No. 207 11/01/1993First Revised Sheet No. 208 04/17/2010Original Sheet No. 209 11/01/1993First Revised Sheet No. 210 11/01/2003First Revised Sheet No. 211 11/01/1995Substitute Second Revised Sheet No. 212 07/05/2005Fifth Revised Sheet No. 213 04/17/2010First Revised Sheet No. 214 11/22/2003Fifth Revised Sheet No. 215 04/17/2010Fourth Revised Sheet No. 216 02/21/2009Original Sheet No. 217 11/01/1993Original Sheet No. 218 11/01/1993Eighth Revised Sheet No. 219 04/17/2010Seventh Revised Sheet No. 220 02/21/2009Seventh Revised Sheet No. 221 04/17/2010Eighth Revised Sheet No. 222 04/17/2010First Revised Sheet No. 222A 04/17/2010Sheet No. 223 05/01/2002Original Sheet No. 224 11/01/1993Original Sheet No. 225 11/01/1993Substitute Eighth Revised Sheet No. 226 06/01/2008Sixth Revised Sheet No. 226 12/31/9999First Revised Sheet No. 226A 08/01/1996Substitute Fifth Revised Sheet No. 227 06/01/2008Fourth Revised Sheet No. 228 02/25/2006Original Sheet No. 228A 11/22/2003First Revised Sheet No. 229 11/22/2003First Revised Sheet No. 230 02/25/2006First Revised Sheet No. 231 04/01/1995First Revised Sheet No. 232 04/01/1995Third Revised Sheet No. 233 04/17/2010Sheet No. 234 05/01/2002Original Sheet No. 235 11/01/1993Original Sheet No. 236 11/01/1993Original Sheet No. 237 11/01/1993Original Sheet No. 237A 03/01/1996Original Sheet No. 237B 03/01/1996Original Sheet No. 237C 03/01/1996Sheet No. 238 11/22/2003Original Sheet No. 239 11/01/1993First Revised Sheet No. 240 11/01/1993Original Sheet No. 241 11/01/1993First Revised Sheet No. 242 12/27/1994Original Sheet No. 243 11/01/1993Original Sheet No. 244 11/01/1993Fifth Revised Sheet No. 245 04/01/1998Second Revised Sheet No. 246 04/01/1998Second Revised Sheet No. 247 11/01/1998Third Revised Sheet No. 248 11/01/1998Second Revised Sheet No. 249 11/01/1998Substitute First Revised Sheet No. 250 11/01/1998Seventh Revised Sheet No. 251 04/17/2010Fifth Revised Sheet No. 252 02/21/2009Seventh Revised Sheet No. 253 06/11/2007Third Revised Sheet No. 253A 06/11/2007Fourth Revised Sheet No. 254 06/11/2007Fifth Revised Sheet No. 255 02/21/2009Sixth Revised Sheet No. 256 04/17/2010Third Revised Sheet No. 256 12/31/9999Sixth Revised Sheet No. 257 04/17/2000Fifth Revised Sheet No. 257 10/01/2002Original Sheet No. 257A 04/17/200011 Revised Sheet No. 258 09/29/201013 Revised Sheet No. 259 09/29/2010Third Revised Sheet No. 259A 09/29/2010First Revised Sheet No. 259B 09/29/2010Ninth Revised Sheet No. 260 09/29/2010Fifth Revised Sheet No. 260A 04/17/2010Second Revised Sheet No. 260A 12/31/9999Third Revised Sheet No. 260A 12/31/9999Fourth Revised Sheet No. 261 02/21/2009Second Revised Sheet No. 262 07/09/2007Tenth Revised Sheet No. 263 04/17/20101 Rev Sub Sixth Revised Sheet No. 263A 02/21/2009Fourth Revised Sheet No. 263B 11/01/2001Fourth Revised Sheet No. 263C 11/01/2003Fourth Revised Sheet No. 263D 11/01/2003First Revised Sheet No. 263E 11/01/1997Sixth Revised Sheet No. 263F 11/01/2010Sixth Revised Sheet No. 263G 11/01/201015 Revised Sheet No. 263H 11/01/2010Third Revised Sheet No. 263I 11/01/201012 Revised Sheet No.263H.1 11/01/200914 Revised Sheet No. 263H.1 11/01/2010Eighth Revised Sheet No. 264 04/17/2010Tenth Revised Sheet No. 265 04/17/2010Second Revised Sheet No. 265A 04/17/2010Fifth Revised Sheet No. 266 04/17/2010Original Sheet No. 266A 01/01/1997Eighth Revised Sheet No. 267 11/22/2003Substitute Original Sheet No. 267A 11/22/2003Ninth Revised Sheet No. 268 04/17/2010Third Revised Sheet No. 268A 04/17/2010Eighth Revised Sheet No. 269 07/16/2005Third Revised Sheet No. 269A 11/22/2003Fourth Revised Sheet No. 269B 04/17/2010Original Sheet No. 269C 11/01/2003Third Revised Sheet No. 270 04/17/2010Third Revised Sheet No. 271 02/21/2009Second Revised Sheet No. 272 08/01/2004Second Revised Sheet No. 273 08/01/2004Original Sheet No. 274 11/01/1993Second Revised Sheet No. 275 07/09/2007Original Sheet No. 276 11/01/1993Original Sheet No. 277 11/01/1993Second Revised Sheet No. 278 11/22/2003First Revised Sheet No. 279 05/10/1996First Revised Sheet No. 280 05/10/1996Fifth Revised Sheet No. 281 08/01/2004Third Revised Sheet No. 282 11/01/1998Third Revised Sheet No. 283 11/22/2003Second Revised Sheet No. 284 02/23/2003Third Revised Sheet No. 284 02/21/2009Seventh Revised Sheet No. 285 04/17/2010Fourth Revised Sheet No. 285A 04/17/2010Second Revised Sheet No. 285B 04/17/2010Substitute 11 Revised Sheet No. 286 12/26/200813 Revised Sheet No. 287 04/17/2010Sixth Revised Sheet No. 287A 09/29/2010Ninth Revised Sheet No. 288 02/21/2009Substitute 11 Revised Sheet No. 289 02/21/2009Original Sheet No. 289A 07/01/2003First Revised Sheet No. 289B 09/29/2010Original Sheet No. 289C 09/29/2010Fourth Revised Sheet No. 290 02/21/2009Original Sheet No. 290A 11/01/2003Seventh Revised Sheet No. 291 04/01/2005First Revised Sheet No. 291A 11/01/2003Sixth Revised Sheet No. 292 02/25/2006Fourth Revised Sheet No. 292A 08/19/2004Second Revised Sheet No. 292A 12/31/9999First Revised Sheet No. 293 04/01/1995Fourth Revised Sheet No. 296 11/01/2003Substitute Sixth Revised Sheet No. 297 12/30/2004Third Revised Sheet No. 298 02/25/2006Fifth Revised Sheet No. 299 02/25/2006Substitute Fifth Revised Sheet No. 299A 08/01/2004Fifth Revised Sheet No. 300 02/21/2009Fourth Revised Sheet No. 300A 10/01/2007Sixth Revised Sheet No. 301 06/01/2002Sixth Revised Sheet No. 301A 10/01/2007Third Revised Sheet No. 301B 11/07/2005Fourth Revised Sheet No. 301C 11/07/2005Fifth Revised Sheet No. 302 02/21/2009First Revised Sheet No. 302A 11/07/2005Tenth Revised Sheet No. 303 05/15/2005Fifth Revised Sheet No. 304 04/17/2010Fifth Revised Sheet No. 305 06/11/2007Second Revised Sheet No. 305 12/31/9999Substitute Fourth Revised Sheet No. 305A 09/22/2007Original Sheet No. 305A 12/31/9999Fourth Revised Sheet No. 305A 12/31/9999First Revised Sheet No. 305B 09/01/2004Original Sheet No. 305B 12/31/9999Fourth Revised Sheet No. 306 04/17/2010Original Sheet No. 306 12/31/9999Original Sheet No. 307 11/01/2003Seventh Revised Sheet No. 308 04/17/2010Sixth Revised Sheet No. 309 06/01/2008Sheet No. 310 11/22/2003Seventh Revised Sheet No. 400 02/21/2009Sixth Revised Sheet No. 400 12/31/9999Fifth Revised Sheet No. 400A 02/21/2009Fourth Revised Sheet No. 400A 12/31/9999Sixth Revised Sheet No. 401 02/21/2009Fifth Revised Sheet No. 401 12/31/9999Fifth Revised Sheet No. 402 02/21/2009Fourth Revised Sheet No. 402 12/31/9999Eighth Revised Sheet No. 403 04/17/2010Sixth Revised Sheet No. 403 12/31/9999Ninth Revised Sheet No. 403A 04/17/2010Sixth Revised Sheet No. 403A 12/31/9999Fourth Revised Sheet No. 404 02/21/2009Third Revised Sheet No. 404 12/31/9999Second Revised Sheet No. 405 09/24/2006Fourth Revised Sheet No. 406 02/21/2009Third Revised Sheet No. 406 12/31/9999Second Revised Sheet No. 406A 02/21/2009First Revised Sheet No. 406A 12/31/9999Third Revised Sheet No. 407 02/21/2009Second Revised Sheet No. 407 12/31/9999Fourth Revised Sheet No. 408 02/21/2009Third Revised Sheet No. 408 12/31/9999Second Revised Sheet No. 408A 02/21/2009First Revised Sheet No. 408A 12/31/9999Fourth Revised Sheet No. 409 02/21/2009Third Revised Sheet No. 409 12/31/9999Second Revised Sheet No. 409A 02/21/2009First Revised Sheet No. 409A 12/31/9999Second Revised Sheet No. 410 09/01/2004Second Revised Sheet No. 412 08/01/1997First Revised Sheet No. 413 12/01/1995Third Revised Sheet No. 414 09/27/2000Fourth Revised Sheet No. 414 02/21/2009Second Revised Sheet No. 415 09/27/2000Third Revised Sheet No. 415 02/21/2009Second Revised Sheet No. 416 09/27/2000Third Revised Sheet No. 416 02/21/2009Second Revised Sheet No. 424 08/01/1997First Revised Sheet No. 425 12/01/1995First Revised Sheet No. 426 12/01/1995Original Sheet No. 427 11/01/1993Original Sheet No. 428 11/01/1993Original Sheet No. 429 11/01/1993First Revised Sheet No. 430 11/01/1993Seventh Revised Sheet No. 431 02/21/2009Sixth Revised Sheet No. 431 12/31/9999Second Revised Sheet No. 431A 02/21/2009First Revised Sheet No. 431A 12/31/9999Fourth Revised Sheet No. 432 02/21/2009Third Revised Sheet No. 432 12/31/9999Sheet No. 433 11/01/2003Seventh Revised Sheet No. 441 02/21/2009Sixth Revised Sheet No. 441 12/31/9999Second Revised Sheet No. 441A 02/21/2009First Revised Sheet No. 441A 12/31/9999Seventh Revised Sheet No. 442 02/21/2009Fifth Revised Sheet No. 442 12/31/9999Fourth Revised Sheet No. 442A 02/21/2009Third Revised Sheet No. 442A 12/31/9999Fourth Revised Sheet No. 442B 02/21/2009Second Revised Sheet No. 442B 12/31/9999Third Revised Sheet No. 442C 05/24/2008Second Revised Sheet No. 442C 12/31/9999Original Sheet No. 442A.01 02/21/2009Sixth Revised Sheet No. 443 02/21/2009Second Revised Sheet No. 443 12/31/9999Fifth Revised Sheet No. 443 12/31/9999Second Revised Sheet No. 443A 02/21/2009First Revised Sheet No. 443A 12/31/9999Fourth Revised Sheet No. 444 02/21/2009First Revised Sheet No. 444 12/31/9999Third Revised Sheet No. 444 12/31/9999Fifth Revised Sheet No. 445 02/21/2009Third Revised Sheet No. 445 12/31/9999Seventh Revised Sheet No. 446 02/21/2009Sixth Revised Sheet No. 446 12/31/9999Second Revised Sheet No. 446A 02/21/2009First Revised Sheet No. 446A 12/31/9999Fifth Revised Sheet No. 447 02/21/2009Third Revised Sheet No. 448 02/21/2009First Revised Sheet No. 449 09/14/2007Third Revised Sheet No. 452 02/21/2009Second Revised Sheet No. 452 12/31/9999Fourth Revised Sheet No. 453 02/21/2009Third Revised Sheet No. 453 12/31/9999Second Revised Sheet No. 454 09/24/2006Third Revised Sheet No. 454 12/31/9999Fourth Revised Sheet No. 455 04/17/2010Second Revised Sheet No. 455 12/31/9999First Revised Sheet No. 456 11/22/2003Second Revised Sheet No. 456 12/31/9999Second Revised Sheet No. 457 02/21/2009First Revised Sheet No. 457 12/31/9999Fifth Revised Sheet No. 458 02/21/2009Fourth Revised Sheet No. 458 12/31/9999Second Revised Sheet No. 458A 02/21/2009First Revised Sheet No. 458A 12/31/9999Third Revised Sheet No. 459 09/24/2006First Revised Sheet No. 459A 09/24/2006First Revised Sheet No. 460 09/24/2006Fourth Revised Sheet No. 461 04/17/2010Second Revised Sheet No. 462 02/21/2009Sheet No. 463 06/01/2000Sheet No. 479 11/22/2003Original Sheet No. 480 11/01/1993Original Sheet No. 481 11/01/1993Original Sheet No. 482 11/01/1993Original Sheet No. 483 11/01/1993Original Sheet No. 484 11/01/1993Original Sheet No. 485 11/01/1993Sheet No. 486 04/01/2003First Revised Sheet No. 487 04/01/1995First Revised Sheet No. 488 04/01/1995First Revised Sheet No. 489 04/01/1995Sheet No. 490 11/22/2003First Revised Sheet No. 491 11/01/1993First Revised Sheet No. 492 10/28/2002Sheet No. 493 10/28/2002Substitute Third Revised Sheet No. 510 04/17/2010