Table 17C. Data for figure 18, measured compaction of subsurface material at Southwest extensometer. Cumulative compaction for Southwest extensometer LJ-65-21-226 USGS site number: 294338095270402 Measurement date "Compaction, in feet" 6/24/1980 0.003 7/23/1980 0.037 7/30/1980 0.045 8/19/1980 0.057 9/16/1980 0.083 10/14/1980 0.103 11/10/1980 0.115 12/9/1980 0.125 1/6/1981 0.137 2/5/1981 0.144 3/5/1981 0.15 3/31/1981 0.16 4/28/1981 0.176 5/26/1981 0.186 6/22/1981 0.197 7/20/1981 0.209 8/18/1981 0.237 9/15/1981 0.254 10/13/1981 0.276 11/13/1981 0.287 12/8/1981 0.293 1/6/1982 0.302 2/2/1982 0.31 3/3/1982 0.32 3/30/1982 0.331 4/28/1982 0.345 5/25/1982 0.353 6/22/1982 0.392 7/20/1982 0.423 8/17/1982 0.449 9/14/1982 0.484 10/14/1982 0.511 11/9/1982 0.524 12/7/1982 0.53 1/4/1983 0.529 2/1/1983 0.53 3/2/1983 0.527 3/29/1983 0.529 4/26/1983 0.538 5/24/1983 0.549 6/21/1983 0.568 7/19/1983 0.584 8/17/1983 0.598 9/13/1983 0.599 10/12/1983 0.617 11/8/1983 0.628 12/5/1983 0.627 1/3/1984 0.63 1/31/1984 0.635 2/28/1984 0.64 3/27/1984 0.643 4/24/1984 0.663 5/22/1984 0.68 6/19/1984 0.697 7/17/1984 0.717 8/14/1984 0.729 9/11/1984 0.742 10/10/1984 0.754 11/6/1984 0.758 12/5/1984 0.763 1/2/1985 0.768 1/29/1985 0.769 2/27/1985 0.766 3/27/1985 0.763 4/23/1985 0.774 5/21/1985 0.805 6/18/1985 0.833 7/16/1985 0.849 8/13/1985 0.877 9/10/1985 0.897 10/8/1985 0.921 11/5/1985 0.939 12/3/1985 0.947 12/19/1985 0.95 1/16/1986 0.955 2/13/1986 0.956 3/13/1986 0.963 4/10/1986 0.982 5/9/1986 0.993 6/5/1986 1.006 7/3/1986 1.011 7/8/1986 1.015 7/31/1986 1.049 8/28/1986 1.061 9/25/1986 1.076 10/23/1986 1.083 11/20/1986 1.077 12/17/1986 1.063 1/15/1987 1.046 2/12/1987 1.044 3/6/1987 1.042 4/2/1987 1.051 4/30/1987 1.093 5/28/1987 1.106 6/25/1987 1.103 7/23/1987 1.117 8/20/1987 1.149 9/17/1987 1.181 10/16/1987 1.205 11/12/1987 1.217 12/9/1987 1.216 1/7/1988 1.207 2/4/1988 1.198 3/3/1988 1.192 3/31/1988 1.184 4/28/1988 1.204 5/26/1988 1.216 6/23/1988 1.242 7/21/1988 1.268 8/18/1988 1.282 9/14/1988 1.301 10/13/1988 1.316 11/9/1988 1.32 12/8/1988 1.323 1/5/1989 1.322 2/2/1989 1.303 3/2/1989 1.292 3/29/1989 1.293 4/27/1989 1.312 5/25/1989 1.311 6/22/1989 1.338 7/20/1989 1.338 8/17/1989 1.349 9/14/1989 1.375 10/12/1989 1.395 11/8/1989 1.387 12/7/1989 1.367 1/5/1990 1.352 2/1/1990 1.34 3/2/1990 1.328 3/30/1990 1.33 4/26/1990 1.339 5/24/1990 1.345 6/21/1990 1.401 7/19/1990 1.436 8/16/1990 1.474 9/13/1990 1.5 10/11/1990 1.513 11/7/1990 1.511 12/6/1990 1.497 1/3/1991 1.487 1/31/1991 1.473 2/28/1991 1.459 3/27/1991 1.456 4/25/1991 1.448 5/23/1991 1.449 6/24/1991 1.45 7/18/1991 1.449 8/15/1991 1.471 9/13/1991 1.495 10/10/1991 1.52 11/7/1991 1.534 12/6/1991 1.509 1/2/1992 1.477 1/30/1992 1.445 2/27/1992 1.411 3/25/1992 1.396 4/23/1992 1.394 5/21/1992 1.389 6/18/1992 1.392 7/16/1992 1.43 8/13/1992 1.442 9/10/1992 1.464 10/8/1992 1.479 11/5/1992 1.451 12/3/1992 1.402 1/28/1993 1.404 2/26/1993 1.377 3/25/1993 1.356 4/23/1993 1.347 5/20/1993 1.34 6/16/1993 1.353 7/16/1993 1.379 8/12/1993 1.437 9/10/1993 1.494 10/7/1993 1.535 11/5/1993 1.542 12/3/1993 1.529 12/29/1993 1.49 1/27/1994 1.473 2/24/1994 1.453 3/24/1994 1.438 4/21/1994 1.448 5/19/1994 1.446 6/17/1994 1.446 7/13/1994 1.452 8/11/1994 1.482 9/8/1994 1.482 10/5/1994 1.48 11/3/1994 1.467 12/1/1994 1.459 12/29/1994 1.45 1/26/1995 1.433 2/23/1995 1.424 3/24/1995 1.416 4/20/1995 1.423 5/18/1995 1.422 6/15/1995 1.43 7/12/1995 1.441 8/11/1995 1.446 9/8/1995 1.452 10/4/1995 1.459 11/3/1995 1.449 11/30/1995 1.443 1/3/1996 1.435 1/25/1996 1.429 2/22/1996 1.426 3/21/1996 1.431 4/18/1996 1.457 5/16/1996 1.452 6/13/1996 1.454 7/11/1996 1.458 8/8/1996 1.469 9/5/1996 1.467 10/3/1996 1.463 10/30/1996 1.459 11/27/1996 1.457 12/23/1996 1.448 1/24/1997 1.439 2/19/1997 1.434 3/20/1997 1.423 4/17/1997 1.419 5/15/1997 1.419 6/12/1997 1.415 7/11/1997 1.417 8/8/1997 1.431 9/3/1997 1.441 10/2/1997 1.448 10/30/1997 1.445 11/25/1997 1.443 12/22/1997 1.438 1/21/1998 1.432 2/18/1998 1.425 3/18/1998 1.422 4/14/1998 1.422 5/13/1998 1.425 6/13/1998 1.434 7/9/1998 1.448 8/6/1998 1.469 9/4/1998 1.478 10/2/1998 1.479 10/27/1998 1.476 11/25/1998 1.471 12/17/1998 1.468 1/16/1999 1.461 2/11/1999 1.459 3/15/1999 1.455 4/9/1999 1.452 5/6/1999 1.457 6/4/1999 1.46 6/29/1999 1.459 7/30/1999 1.462 8/26/1999 1.47 9/27/1999 1.487 10/25/1999 1.499 11/23/1999 1.503 12/21/1999 1.522 1/11/2000 1.513 2/9/2000 1.53 3/9/2000 1.538 4/6/2000 1.535 5/8/2000 1.52 5/31/2000 1.521 6/29/2000 1.521 7/26/2000 1.522 8/25/2000 1.527 9/20/2000 1.543 10/19/2000 1.546 11/16/2000 1.539 12/15/2000 1.531 1/15/2001 1.529 2/9/2001 1.527 3/9/2001 1.531 4/6/2001 1.523 5/4/2001 1.53 5/31/2001 1.525 6/28/2001 1.52 7/25/2001 1.522 8/22/2001 1.527 9/19/2001 1.53 10/18/2001 1.529 11/14/2001 1.544 12/14/2001 1.558 1/9/2002 1.553 2/8/2002 1.539 3/7/2002 1.532 4/4/2002 1.526 5/1/2002 1.522 5/31/2002 1.524 6/26/2002 1.526 7/25/2002 1.527 8/23/2002 1.523 9/19/2002 1.525 10/16/2002 1.523 11/14/2002 1.517 12/11/2002 1.534 1/8/2003 1.533 2/5/2003 1.53 3/7/2003 1.522 4/4/2003 1.525 5/1/2003 1.525 5/30/2003 1.53 6/27/2003 1.536 7/23/2003 1.537 8/21/2003 1.536 9/18/2003 1.535 10/17/2003 1.535 11/14/2003 1.539 12/10/2003 1.535 1/8/2004 1.528 2/6/2004 1.517 3/4/2004 1.509 4/1/2004 1.504 4/29/2004 1.503 5/27/2004 1.501 6/24/2004 1.5 7/21/2004 1.499 8/19/2004 1.503 9/15/2004 1.504 10/12/2004 1.508 11/8/2004 1.506 12/7/2004 1.505 1/4/2005 1.506 2/3/2005 1.503 3/1/2005 1.497 3/28/2005 1.493 4/28/2005 1.497 5/25/2005 1.498 6/22/2005 1.51 7/18/2005 1.532 8/17/2005 1.531 9/21/2005 1.538 10/19/2005 1.568 11/15/2005 1.588 12/13/2005 1.585 1/5/2006 1.585 2/9/2006 1.573 3/8/2006 1.565 4/6/2006 1.558 5/4/2006 1.554 5/30/2006 1.556 6/29/2006 1.561 7/28/2006 1.558 8/24/2006 1.558 9/26/2006 1.559 10/23/2006 1.555 11/15/2006 1.573 12/16/2006 1.56