Chesapeake Bay Benthic Monitoring Program

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Estimated Areas Failing Restoration Goals, 1994-2015

Estimated tidal area (km2) failing to meet the Chesapeake Bay Benthic Community Restoration Goals in the Chesapeake Bay, Maryland, Virginia, and each of the ten sampling strata.  *In this table, the area of the mainstem deep trough is included in the estimates for the Severely Degraded portion of Chesapeake Bay, Maryland tidal waters, and Maryland mid-bay mainstem.

Region


Year Severely Degraded Marginal Total Percent Degraded* Failing Failing

Chesapeake Bay


1996 3,080 1,388 1,056 5,524 47.6 1997 2,941 2,093 856 5,890 50.7 1998 3,771 1,689 1,271 6,731 58.0 1999 3,164 1,660 1,020 5,844 50.3 2000 2,704 1,538 1,474 5,715 49.2 2001 3,123 1,187 1,749 6,060 52.2 2002 3,424 1,584 1,170 6,178 53.2 2003 3,351 2,537 964 6,852 59.0 2004 2,902 1,940 650 5,492 47.3 2005 4,664 1,550 614 6,829 58.8 2006 4,336 1,779 756 6,871 59.2 2007 4,120 1,529 1,064 6,713 57.8 2008 3,459 1,570 1,759 6,788 58.5 2009 3,164 898 1,032 5,094 43.9 2010 3,199 1,492 1,485 6,177 53.2 2011 3,686 1,534 1,132 6,353 54.7 2012 3,125 2,039 1,173 6,337 54.6 2013 3,650 1,760 800 6,210 53.5 2014 2,601 1,600 505 4,767 76.0 2015 2,595 1,485 349 4,428 38.0

Maryland Tidal Waters


1994 2,684 1,152 497 4,332 66.5 1995 2,872 605 182 3,659 58.6 1996 2,614 700 155 3,469 55.6 1997 2,349 719 462 3,529 56.5 1998 2,663 1,016 623 4,302 68.9 1999 2,423 1,137 374 3,935 63.0 2000 2,455 1,137 236 3,828 61.3 2001 2,313 582 644 3,538 56.7 2002 2,444 713 928 4,086 65.4 2003 2,571 1,288 228 4,086 65.4 2004 2,037 985 226 3,248 52.0 2005 2,771 1,014 295 4,080 65.3 2006 3,077 1,013 504 4,595 73.6 2007 3,088 851 513 4,452 71.3 2008 2,727 767 854 4,348 69.6 2009 2,484 580 540 3,605 57.7 2010 2,656 1,171 355 4,182 67.0 2011 2,320 1,027 703 4,050 64.9 2012 2,620 1,161 785 4,565 73.1 2013 2,549 1,269 184 4,001 64.1 2014 2,110 1,402 241 3,753 60.1 2015 1,997 1,071 254 3,322 53.0

Virginia Tidal Waters


1996 466 688 901 2,055 38.3 1997 592 1,375 394 2,361 44.0 1998 1,107 673 648 2,429 45.3 1999 741 523 646 1,909 35.6 2000 249 401 1,238 1,888 35.2 2001 810 606 1,106 2,522 47.0 2002 980 871 242 2,092 39.0 2003 780 1,249 736 2,766 51.6 2004 866 955 424 2,245 41.9 2005 1,893 536 319 2,748 51.2 2006 1,259 765 252 2,276 42.4 2007 1,031 678 552 2,261 42.2 2008 732 803 905 2,440 45.5 2009 680 318 491 1,489 27.8 2010 543 321 1,130 1,994 37.2 2011 1,366 508 429 2,303 42.9 2012 505 878 389 1,772 33.0 2013 1,101 491 616 2,208 41.2 2014 490 259 264 1,013 18.9 2015 598 413 95 1,106 21.0

Potomac River


1994 793 330 0 1,123 60.7 1995 510 153 51 714 56.0 1996 714 51 0 765 60.0 1997 561 204 102 867 68.0 1998 561 510 102 1,173 92.0 1999 663 153 102 918 72.0 2000 612 255 0 867 68.0 2001 612 357 51 1,020 80.0 2002 561 204 153 918 72.0 2003 867 153 0 1,020 80.0 2004 663 153 0 816 64.0 2005 867 255 0 1,122 88.0 2006 867 153 102 1,122 88.0 2007 816 153 51 1,020 80.0 2008 561 153 51 765 60.0 2009 510 204 0 714 56.0 2010 459 357 51 867 68.0 2011 663 306 102 1,071 84.0 2012 510 408 204 1,122 88.0 2013 561 306 0 867 68.0 2014 714 255 0 969 76.0 2015 510 459 51 1,020 80.0

Patuxent River


1995 51 10 5 67 52.0 1996 41 20 0 61 48.0 1997 20 5 10 36 28.0 1998 31 26 5 61 48.0 1999 20 10 10 41 32.0 2000 51 26 10 87 68.0 2001 56 15 20 92 72.0 2002 36 26 20 82 64.0 2003 51 46 0 97 76.0 2004 15 67 0 82 64.0 2005 51 36 5 92 72.0 2006 51 41 10 102 80.0 2007 41 36 15 92 72.0 2008 61 10 20 92 72.0 2009 61 41 5 108 84.0 2010 41 31 26 97 76.0 2011 51 31 5 87 68.0 2012 61 36 15 113 88.0 2013 61 20 15 97 76.0 2014 61 31 0 92 72.0 2015 36 21 5 61 48.0

Maryland Upper Western Tributaries


1995 58 47 23 129 44.0 1996 117 47 0 164 56.0 1997 105 23 12 140 48.0 1998 94 23 12 129 44.0 1999 117 47 12 175 60.0 2000 140 70 0 211 72.0 2001 70 12 47 129 44.0 2002 94 47 47 187 64.0 2003 47 105 23 175 60.0 2004 70 117 0 187 64.0 2005 140 47 0 187 64.0 2006 187 47 12 246 84.0 2007 94 35 12 140 48.0 2008 94 23 12 129 44.0 2009 94 35 0 129 44.0 2010 152 70 0 222 76.0 2011 35 70 0 105 36.0 2012 199 23 23 246 84.0 2013 70 23 23 117 40.0 2014 70 70 23 164 56.0 2015 105 35 12 152 52.0

Maryland Eastern Tributaries


1995 107 128 0 235 44.0 1996 21 150 21 192 36.0 1997 43 86 0 128 24.0 1998 21 64 64 150 28.0 1999 43 150 86 278 52.0 2000 64 150 21 235 44.0 2001 128 64 86 278 52.0 2002 64 107 64 235 44.0 2003 128 214 0 342 64.0 2004 86 107 21 214 40.0 2005 86 64 86 235 44.0 2006 86 128 43 257 48.0 2007 150 86 128 363 68.0 2008 86 86 64 235 44.0 2009 192 64 64 321 60.0 2010 150 171 43 363 68.0 2011 86 86 86 257 48.0 2012 128 128 0 257 48.0 2013 64 150 43 257 48.0 2014 86 64 21 171 32.0 2015 64 86 21 171 32.0

Maryland Upper Bay Mainstem


1995 345 63 0 408 52.0 1996 126 126 31 283 36.0 1997 126 94 31 251 32.0 1998 157 188 31 377 48.0 1999 188 63 63 314 40.0 2000 94 126 0 220 28.0 2001 157 31 31 220 28.0 2002 94 126 31 251 32.0 2003 188 157 0 345 44.0 2004 220 31 0 251 32.0 2005 31 0 0 31 4.0 2006 188 31 31 251 32.0 2007 188 31 0 220 28.0 2008 126 188 94 408 52.0 2009 31 31 63 126 16.0 2010 157 31 31 220 28.0 2011 94 126 0 220 28.0 2012 126 157 31 314 40.0 2013 94 157 0 251 32.0 2014 94 63 94 251 32.0 2015 94 63 63 220 28.0

Maryland Mid-Bay Mainstem


1995 1,799 204 102 2,106 65.2 1996 1,595 306 102 2,004 62.1 1997 1,493 306 306 2,106 65.2 1998 1,799 204 408 2,412 74.7 1999 1,391 715 102 2,208 68.4 2000 1,493 510 204 2,208 68.4 2001 1,289 102 408 1,799 55.7 2002 1,595 204 613 2,412 74.7 2003 1,289 613 204 2,106 65.2 2004 983 510 204 1,697 52.6 2005 1,595 613 204 2,412 74.7 2006 1,697 613 306 2,616 81.0 2007 1,799 510 306 2,616 81.0 2008 1,799 306 613 2,718 84.2 2009 1,595 204 408 2,208 68.4 2010 1,697 510 204 2,412 74.7 2011 1,391 408 510 2,310 71.5 2012 1,595 408 510 2,514 77.9 2013 1,697 613 102 2,412 74.7 2014 1,085 919 102 2,106 65.2 2015 1,187 408 102 1,697 52.6

Virginia Mainstem


1996 165 494 824 1,483 36.0 1997 165 1,154 330 1,648 40.0 1998 824 330 494 1,648 40.0 1999 494 165 494 1,154 28.0 2000 0 165 1,154 1,318 32.0 2001 494 330 989 1,813 44.0 2002 659 659 165 1,483 36.0 2003 494 824 659 1,977 48.0 2004 659 659 330 1,648 40.0 2005 1,483 330 165 1,977 48.0 2006 824 494 165 1,483 36.0 2007 494 330 494 1,318 32.0 2008 330 494 659 1,483 36.0 2009 330 0 330 659 16.0 2010 165 165 989 1,318 32.0 2011 824 165 330 1,318 32.0 2012 165 659 165 989 24.0 2013 494 330 494 1,318 32.0 2014 165 0 165 330 8.0 2015 330 165 0 494 12.0

Rappahannock River


1996 119 60 0 179 48.0 1997 149 74 15 238 64.0 1998 60 134 45 238 64.0 1999 89 89 74 253 68.0 2000 149 104 15 268 72.0 2001 30 60 60 149 40.0 2002 134 45 0 179 48.0 2003 89 104 0 194 52.0 2004 60 89 30 179 48.0 2005 253 60 30 343 92.0 2006 223 15 45 283 76.0 2007 209 104 15 328 88.0 2008 179 60 45 283 76.0 2009 119 104 45 268 72.0 2010 209 45 45 298 80.0 2011 134 119 30 283 76.0 2012 179 60 30 268 72.0 2013 194 30 60 283 76.0 2014 89 104 30 223 60.0 2015 60 89 30 179 48.0

York River


1996 45 52 22 120 64.0 1997 60 37 22 120 64.0 1998 60 45 0 105 56.0 1999 75 22 22 120 64.0 2000 45 22 15 82 44.0 2001 67 52 30 150 80.0 2002 22 30 22 75 40.0 2003 60 75 22 157 84.0 2004 37 15 37 90 48.0 2005 75 37 15 127 68.0 2006 75 37 15 127 68.0 2007 82 52 15 150 80.0 2008 60 30 37 127 68.0 2009 67 22 7 97 52.0 2010 60 30 15 105 56.0 2011 52 60 15 127 68.0 2012 52 22 30 105 56.0 2013 112 22 7 142 76.0 2014 45 45 15 105 56.0 2015 45 22 37 105 48.0

James River


1996 137 82 55 273 40.0 1997 219 109 27 355 52.0 1998 164 164 109 437 64.0 1999 82 246 55 383 56.0 2000 55 109 55 219 32.0 2001 219 164 27 410 60.0 2002 164 137 55 355 52.0 2003 137 246 55 437 64.0 2004 109 191 27 328 48.0 2005 82 109 109 301 44.0 2006 137 219 27 383 56.0 2007 246 191 27 465 68.0 2008 164 219 164 547 80.0 2009 164 191 109 465 68.0 2010 109 82 82 273 40.0 2011 355 164 55 574 84.0 2012 109 137 164 410 60.0 2013 301 109 55 465 68.0 2014 191 109 55 355 52.0 2015 164 137 27 328 48.0

 

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Revised: Sept 1, 2016