Superfund Information Systems: Site Profile

Superfund Site:

COMMENCEMENT BAY, NEAR SHORE/TIDE FLATS
TACOMA, WA

Cleanup Progress

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Cleaning up Superfund sites is a complex, multi-phase process. Learn more:

Site Milestones

Milestone Date(s)
Initial Assessment Completed 11/01/1979
Proposed to the National Priorities List 12/30/1982
Finalized on the National Priorities List 09/08/1983
Remedial Investigation Started 07/07/1982
Remedy Selected 12/30/1987
Final Remedy Selected 03/24/1995
Remedial Action Started 09/30/1989
Construction Completed Not Yet Achieved
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 12/01/2014
Site Ready for Reuse and Redevelopment Not Yet Achieved

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Cleanup Schedule by Operable Unit

During cleanup, a site can be divided into a number of distinct areas depending on its complexity. These areas, called operable units (OUs), may address geographic areas, specific problems, or areas where a specific action is required. Examples of typical operable units include construction of a groundwater pump and treatment system or construction of a cap over a landfill.

Milestone OU Start Date Completion Date OU ID
Administrative Order of Consent (EPA Performed) OU 00 - SITEWIDE 07/24/2001 00
Consent Decree (EPA Performed) OU 00 - SITEWIDE 10/02/2006 00
Removal (PRP Performed, EPA Oversight) OU 00 - SITEWIDE 06/07/2002 03/31/2003 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/29/1998 00
Five-Year Review (PRP Performed, EPA Oversight) OU 00 - SITEWIDE 12/29/1999 00
Five-Year Review (PRP Performed, EPA Oversight) OU 00 - SITEWIDE 03/31/2000 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/25/2003 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 12/29/2004 00
Five-Year Review (PRP Performed, EPA Oversight) OU 00 - SITEWIDE 12/23/2009 00
Five-Year Review (PRP Performed, EPA Oversight) OU 00 - SITEWIDE 12/01/2014 00
Five-Year Review OU 00 - SITEWIDE Estimated Dec 2019 - Feb 2020 00
Consent Decree (EPA Performed) OU 01 - NS/TF SEDIMENT 11/02/1995 01
Combined Remedial Investigation/Feasibility Study (State Performed) OU 01 - NS/TF SEDIMENT 07/07/1982 09/30/1989 01
Record of Decision (EPA Performed) OU 01 - NS/TF SEDIMENT 09/30/1989 01
Explanation of Significant Differences (EPA Performed) OU 01 - NS/TF SEDIMENT 06/24/1993 01
Explanation of Significant Differences (EPA Performed) OU 01 - NS/TF SEDIMENT 07/28/1997 01
Explanation of Significant Differences (EPA Performed) OU 01 - NS/TF SEDIMENT 08/03/2000 01
Explanation of Significant Differences (EPA Performed) OU 01 - NS/TF SEDIMENT 02/04/2002 01
Explanation of Significant Differences (EPA Performed) OU 01 - NS/TF SEDIMENT 03/20/2003 01
Explanation of Significant Differences (EPA Performed) OU 01 - NS/TF SEDIMENT 09/30/2004 01
Partial NPL Deletion (EPA Performed) OU 01 - NS/TF SEDIMENT 10/29/1996 01
Remedial Design (State Oversight) OU 02 - OU 05 RA AREA: ST. PAUL SRC CNTRL (DELETED) 09/30/1989 09/30/1989 02
Remedial Action (State Oversight) OU 02 - OU 05 RA AREA: ST. PAUL SRC CNTRL (DELETED) 09/30/1989 09/28/1990 02
Remedial Design (State Oversight) OU 03 - OU 05 RA AREA: SITCUM SOURCE CONTROL 08/22/1990 12/06/1991 03
Remedial Action (State Oversight) OU 03 - OU 05 RA AREA: SITCUM SOURCE CONTROL 11/16/1990 09/23/1994 03
Remedial Design (State Oversight) OU 04 - OU 05 RA AREA: MOUTH OF HYLEBOS SOURCE CNTRL 06/28/1991 03/03/1993 04
Remedial Action (State Oversight) OU 04 - OU 05 RA AREA: MOUTH OF HYLEBOS SOURCE CNTRL 11/12/1991 06/29/2000 04
Combined Remedial Investigation/Feasibility Study (State Performed) OU 05 - NS/TF SOURCE CONTROL 07/07/1982 09/30/1989 05
Record of Decision (EPA Performed) OU 05 - NS/TF SOURCE CONTROL 09/30/1989 05
Remedial Design (State Oversight) OU 05 - NS/TF SOURCE CONTROL 09/30/1989 05/19/1993 05
Remedial Action (State Oversight) OU 05 - NS/TF SOURCE CONTROL 01/16/1990 06/29/2000 05
Remedial Design (State Oversight) OU 06 - OU 05 RA AREA: WHEELER-OSGOOD SOURCE CONTROL 01/15/1993 08/03/1995 06
Remedial Action (State Oversight) OU 06 - OU 05 RA AREA: WHEELER-OSGOOD SOURCE CONTROL 12/17/1993 06/29/2000 06
Remedial Design (State Oversight) OU 07 - OU 05 RA AREA: HEAD OF THEA FOSS SOURCE CNTRL 01/30/1991 07/19/1995 07
Remedial Action (State Oversight) OU 07 - OU 05 RA AREA: HEAD OF THEA FOSS SOURCE CNTRL 04/11/1991 03/28/2003 07
Remedial Design (State Oversight) OU 08 - OU 05 RA AREA: MOUTH OF THEA FOSS SOURCE CNTL 09/30/1989 07/01/1993 08
Remedial Action (State Oversight) OU 08 - OU 05 RA AREA: MOUTH OF THEA FOSS SOURCE CNTL 09/30/1989 05/22/1997 08
Remedial Design (State Oversight) OU 09 - OU 05 RA AREA: MIDDLE WATERWAY SOURCE CONTROL 06/30/1992 02/25/1994 09
Remedial Action (State Oversight) OU 09 - OU 05 RA AREA: MIDDLE WATERWAY SOURCE CONTROL 07/31/1992 12/22/2000 09
Consent Decree (EPA Performed) OU 10 - OU 01 RA AREA: ST. PAUL SEDIMENTS (DELETED) 12/13/1991 10
Remedial Design (PRP Performed, EPA Oversight) OU 10 - OU 01 RA AREA: ST. PAUL SEDIMENTS (DELETED) 09/28/1990 03/11/1992 10
Remedial Action (PRP Performed, EPA Oversight) OU 10 - OU 01 RA AREA: ST. PAUL SEDIMENTS (DELETED) 03/20/1992 06/30/1993 10
Long-Term Response Action (PRP Performed, EPA Oversight) OU 10 - OU 01 RA AREA: ST. PAUL SEDIMENTS (DELETED) 06/30/1993 10/18/2004 10
Administrative Order of Consent (EPA Performed) OU 11 - OU 01 RA AREA: SITCUM SEDIMENTS 03/29/1991 11
Consent Decree (EPA Performed) OU 11 - OU 01 RA AREA: SITCUM SEDIMENTS 10/08/1993 11
Remedial Design (PRP Performed, EPA Oversight) OU 11 - OU 01 RA AREA: SITCUM SEDIMENTS 03/29/1991 10/07/1993 11
Remedial Action (PRP Performed, EPA Oversight) OU 11 - OU 01 RA AREA: SITCUM SEDIMENTS 06/25/1993 03/09/2017 11
Long-Term Response Action (PRP Performed, EPA Oversight) OU 11 - OU 01 RA AREA: SITCUM SEDIMENTS 11/03/1999 01/21/2009 11
Administrative Order of Consent (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 11/29/1993 12
Administrative Order of Consent (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 11/06/1997 12
Consent Decree (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 06/23/2000 12
Consent Decree (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 09/15/2003 12
Consent Decree (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 03/15/2005 12
Consent Decree (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 09/16/2005 12
Consent Decree (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 03/20/2009 12
Consent Decree (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 09/02/2009 12
Unilateral Administrative Order (EPA Performed) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 03/25/2002 12
Removal (PRP Performed, EPA Oversight) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 10/15/2002 02/01/2005* 12
Combined Remedial Investigation/Feasibility Study (PRP Performed, EPA Oversight) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 02/01/2005 * 12
Remedial Design (PRP Performed, EPA Oversight) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 05/18/1994 09/26/2008 12
Remedial Action (PRP Performed, EPA Oversight) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 07/23/2002 09/30/2013 12
Operation and Maintenance (PRP Performed, EPA Oversight) OU 12 - OU 01 RA AREA: MOUTH OF HYLEBOS SEDIMENTS 09/30/2013 12
Administrative Order of Consent (EPA Performed) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 03/23/1994 13
Administrative Order of Consent (EPA Performed) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 06/09/1999 13
Administrative Order of Consent (EPA Performed) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 09/14/2001 13
Administrative Order of Consent (EPA Performed) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 03/21/2002 13
Consent Decree (EPA Performed) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 05/09/2003 13
Consent Decree (EPA Performed) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 12/17/2003 13
Unilateral Administrative Order (EPA Performed) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 09/30/2002 13
Remedial Design (PRP Performed, EPA Oversight) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 06/22/1994 11/10/2003 13
Remedial Action (PRP Performed, EPA Oversight) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 10/07/2002 12/16/2003* 13
Remedial Action (PRP Performed, EPA Oversight) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 12/17/2003* 09/29/2006 13
Operation and Maintenance (PRP Performed, EPA Oversight) OU 13 - OU 01 RA AREA: MOUTH THEA FOSS/WHEELER OSGOOD SED 09/26/2006 13
Consent Decree (EPA Performed) OU 14 - OU 01 RA AREA: HEAD OF THEA FOSS SEDIMENTS 05/09/2003 14
Remedial Design (PRP Performed, EPA Oversight) OU 14 - OU 01 RA AREA: HEAD OF THEA FOSS SEDIMENTS 09/29/2002 09/19/2003 14
Remedial Action (PRP Performed, EPA Oversight) OU 14 - OU 01 RA AREA: HEAD OF THEA FOSS SEDIMENTS 09/19/2003 03/20/2008 14
Operation and Maintenance (PRP Performed, EPA Oversight) OU 14 - OU 01 RA AREA: HEAD OF THEA FOSS SEDIMENTS 09/29/2006 14
Administrative Order of Consent (EPA Performed) OU 17 - OU 01 RA AREA: MOUTH OF MIDDLE WATERWAY SED.S 04/14/1997 17
Consent Decree (EPA Performed) OU 17 - OU 01 RA AREA: MOUTH OF MIDDLE WATERWAY SED.S 12/04/1998 17
Consent Decree (EPA Performed) OU 17 - OU 01 RA AREA: MOUTH OF MIDDLE WATERWAY SED.S 08/14/2003 17
Remedial Design (PRP Performed, EPA Oversight) OU 17 - OU 01 RA AREA: MOUTH OF MIDDLE WATERWAY SED.S 04/14/1997 07/28/2003 17
Remedial Action (PRP Performed, EPA Oversight) OU 17 - OU 01 RA AREA: MOUTH OF MIDDLE WATERWAY SED.S 07/28/2003 09/28/2018 17
Remedial Action (PRP Performed, EPA Oversight) OU 17 - OU 01 RA AREA: MOUTH OF MIDDLE WATERWAY SED.S 11/20/2012 05/13/2013 17
Operation and Maintenance (PRP Performed, EPA Oversight) OU 17 - OU 01 RA AREA: MOUTH OF MIDDLE WATERWAY SED.S 04/08/2005 17
Administrative Order of Consent (EPA Performed) OU 18 - OU 08 RA AREA: PUYALLUP LAND CLAIM 07/07/1992 18
Administrative Order of Consent (EPA Performed) OU 18 - OU 08 RA AREA: PUYALLUP LAND CLAIM 03/09/1993 18
Consent Decree (EPA Performed) OU 18 - OU 08 RA AREA: PUYALLUP LAND CLAIM 01/19/1995 18
Unilateral Administrative Order (EPA Performed) OU 18 - OU 08 RA AREA: PUYALLUP LAND CLAIM 02/14/1991 18
Removal (PRP Performed, EPA Oversight) OU 18 - OU 08 RA AREA: PUYALLUP LAND CLAIM 02/15/1991 02/13/1992 18
Removal (PRP Performed, EPA Oversight) OU 18 - OU 08 RA AREA: PUYALLUP LAND CLAIM 03/10/1993 01/20/1995 18
Removal (PRP Performed, EPA Oversight) OU 18 - OU 08 RA AREA: PUYALLUP LAND CLAIM 06/30/1995 18
Administrative Order of Consent (EPA Performed) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 10/04/1994 19
Unilateral Administrative Order (EPA Performed) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 03/05/2002 19
Removal OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER Estimated Sep - Nov 2019 Estimated Feb - Apr 2020 19
Feasibility Study (PRP Performed, EPA Oversight) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 01/23/1991 11/09/1992* 19
Feasibility Study (PRP Performed, EPA Oversight) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 10/04/1994 07/14/2000 19
Record of Decision (EPA Performed) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 07/14/2000 19
Remedial Design (EPA Performed) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 11/20/2009 19
Remedial Design (EPA Performed) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 10/31/2012 04/30/2016 19
Remedial Action (EPA Performed) OU 19 - OU 06 ASARCO SEDIMENT AND GROUNDWATER 02/25/2016 Estimated Jun - Aug 2020 19
Administrative Order of Consent (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 09/10/1986 20
Consent Decree (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 01/03/1997 20
Consent Decree (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 06/01/2003 20
Consent Decree (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 10/23/2006 20
Consent Decree (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 06/24/2014 20
Removal (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 09/10/1986 02/10/1988 20
Combined Remedial Investigation/Feasibility Study (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 09/10/1986 03/24/1995 20
Record of Decision (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 03/24/1995 20
Explanation of Significant Differences (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 07/02/1996 20
Explanation of Significant Differences (EPA Performed) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 09/27/2018 20
Remedial Design (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 07/11/1996 06/25/2008 20
Remedial Design (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 12/19/2000 09/30/2004 20
Remedial Design (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 06/15/2015 09/26/2018 20
Remedial Action (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 09/17/1998 06/26/2006* 20
Remedial Action (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 06/26/2006* 20
Remedial Action (PRP Performed, EPA Oversight) OU 20 - OU 02 ASARCO SMELTER REMEDIATION 08/15/2016 Estimated Mar - May 2021 20
Consent Decree (EPA Performed) OU 21 - OU 07 ASARCO SMELTER DEMOLITION 05/18/1992 21
Combined Remedial Investigation/Feasibility Study (PRP Performed, EPA Oversight) OU 21 - OU 07 ASARCO SMELTER DEMOLITION 09/10/1986 12/31/1990 21
Record of Decision (EPA Performed) OU 21 - OU 07 ASARCO SMELTER DEMOLITION 12/31/1990 21
Remedial Design (PRP Performed, EPA Oversight) OU 21 - OU 07 ASARCO SMELTER DEMOLITION 02/13/1992 01/04/1993 21
Remedial Action (PRP Performed, EPA Oversight) OU 21 - OU 07 ASARCO SMELTER DEMOLITION 06/25/1992 07/21/1995 21
Administrative Order of Consent (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 09/29/1988 22
Administrative Order of Consent (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 03/08/1989 22
Consent Decree (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 05/02/1995 22
Consent Decree (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 06/05/2009 22
Unilateral Administrative Order (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 10/23/1991 22
Unilateral Administrative Order (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 08/09/1993 22
Removal (PRP Performed, EPA Oversight) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 09/29/1988 03/07/1994 22
Removal (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 08/19/2005 08/20/2005 22
Combined Remedial Investigation/Feasibility Study (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 09/27/1989 06/16/1993 22
Record of Decision (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 06/16/1993 22
Explanation of Significant Differences (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 11/29/1993 22
Remedial Design (PRP Performed, EPA Oversight) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 10/28/1993 12/21/1993 22
Remedial Action (PRP Performed, EPA Oversight) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 12/21/1993 09/08/2009* 22
Remedial Action (EPA Performed) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 09/08/2009* 08/27/2013 22
Operation and Maintenance (State Oversight) OU 22 - OU 04 RUSTON/NORTH TACOMA YARD REMEDIATION 08/27/2013 22
Administrative Order of Consent (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 11/01/1984 23
Consent Decree (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 05/10/1991 23
Consent Decree (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 10/19/1991 23
Consent Decree (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 02/11/1992 23
Unilateral Administrative Order (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 09/30/1988 23
Combined Remedial Investigation/Feasibility Study (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 09/23/1983 11/01/1984* 23
Combined Remedial Investigation/Feasibility Study (PRP Performed, EPA Oversight) OU 23 - OU 03 TACOMA TAR PITS 11/01/1984* 12/30/1987 23
Record of Decision (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 12/30/1987 23
Explanation of Significant Differences (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 11/01/1991 23
Explanation of Significant Differences (EPA Performed) OU 23 - OU 03 TACOMA TAR PITS 05/09/1995 23
Remedial Design (PRP Performed, EPA Oversight) OU 23 - OU 03 TACOMA TAR PITS 02/03/1989 08/16/1993 23
Remedial Action (PRP Performed, EPA Oversight) OU 23 - OU 03 TACOMA TAR PITS 05/15/1992 09/27/1995 23
Remedial Action (PRP Performed, EPA Oversight) OU 23 - OU 03 TACOMA TAR PITS 09/26/2001 02/21/2003 23
Operation and Maintenance (PRP Performed, EPA Oversight) OU 23 - OU 03 TACOMA TAR PITS 02/21/2003 23
Administrative Order of Consent (EPA Performed) OU 25 - OU 01 RA AREA: HEAD OF HYLEBOS SEDIMENTS 10/13/1998 25
Consent Decree (EPA Performed) OU 25 - OU 01 RA AREA: HEAD OF HYLEBOS SEDIMENTS 09/15/2004 25
Unilateral Administrative Order (EPA Performed) OU 25 - OU 01 RA AREA: HEAD OF HYLEBOS SEDIMENTS 03/25/2002 25
Removal (PRP Performed, EPA Oversight) OU 25 - OU 01 RA AREA: HEAD OF HYLEBOS SEDIMENTS 10/13/1998 09/28/1999 25
Remedial Design (PRP Performed, EPA Oversight) OU 25 - OU 01 RA AREA: HEAD OF HYLEBOS SEDIMENTS 05/18/1994 04/14/2004 25
Remedial Action (PRP Performed, EPA Oversight) OU 25 - OU 01 RA AREA: HEAD OF HYLEBOS SEDIMENTS 04/24/2003 08/31/2011 25
Operation and Maintenance (PRP Performed, EPA Oversight) OU 25 - OU 01 RA AREA: HEAD OF HYLEBOS SEDIMENTS 08/31/2011 25
Consent Decree (EPA Performed) OU 26 - OU 01 RA AREA: A & B MIDDLE WATERWAY SEDIMENT 08/14/2003 26
Remedial Design (PRP Performed, EPA Oversight) OU 26 - OU 01 RA AREA: A & B MIDDLE WATERWAY SEDIMENT 04/14/2003 04/07/2004 26
Remedial Action (PRP Performed, EPA Oversight) OU 26 - OU 01 RA AREA: A & B MIDDLE WATERWAY SEDIMENT 07/16/2004 09/12/2005 26
Operation and Maintenance (PRP Performed, EPA Oversight) OU 26 - OU 01 RA AREA: A & B MIDDLE WATERWAY SEDIMENT 09/12/2005 26

*NOTE: This date may not reflect the actual start or actual completion of the milestone. Either the lead for this activity changed, the project was phased, or the project did not fit the normal definitions of activities tracked in this table.

NOTE: Dates and estimated dates will not display for all milestones. Estimated dates only display for milestones planned within the next three fiscal years. Estimated dates and start dates will not display for the following enforcement milestones: Administrative Order of Consent, Consent Decree and Unilateral Administrative Order. Start dates will not display for the following document milestones: Five-Year Review, Record of Decision, Record of Decision Amendment, Explanation of Significant Differences and Partial NPL Deletion.

DISCLAIMER: The data on this page are derived from the Superfund Enterprise Management System and are solely for informational purposes. The data cannot be relied upon to create any substantive or procedural rights or requirements enforceable by any party in litigation with any member of the public, states, tribes, the United States or any federal agency. EPA reserves the right to change these data at any time without public notice.

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