Appendix M: Installation Narrative Summaries - denix

„�����2w—����2g����2e��2ƒ�—���� f‚eg2IWWI
2ppshX
2ƒ���X
2w������X
2r‚ƒ2ƒ���X
2seq2ƒ�—���X
2g���—���—���X
2w���—2e������X
€�������2„�2h—��
In July 1991, the BRAC Commission recommended closure of
Tustin Marine Corps Air Station (MCAS) with retention of the
family housing and related personnel facilities to support El
Toro MCAS. In FY93, El Toro MCAS was recommended for
closure, which included those support facilities retained at
Tustin MCAS. A Restoration Advisory Board and a BRAC
cleanup team were formed in FY94. The Navy regularly
updated two administrative records and two information
repositories. The installation signed a federal facility agreement
(FFA) in August 1999 and issued a draft CERFA basewide
Environmental Baseline Survey in FY99.
Since FY85, studies have identified 16 CERCLA sites, 288
areas of concern (AOCs), 129 underground storage tank (UST)
sites, and 25 aboveground storage tank sites. The installation
has signed 5 Records of Decision (RODs) and transferred over
1,300 acres of property. The cleanup progress at Tustin MCAS
for FY02 through FY05 is detailed below.
In FY02, the installation coordinated interim actions at UST Site
222 and Operable Unit (OU) 1A. The installation issued the OU
1B proposed plan (PP). The installation finalized the OU 3
ROD, and drafted the long-term operation and management
(O&M) plan and land use control implementation and
certification plan (LUCICP) for agency review. Additional data
gathering was also conducted at low-risk sites to support the
OU 4 feasibility study (FS). The installation used over a decade
of environmental actions and data to support the economic
development conveyance (EDC) transfer of 1,152 acres to the
City of Tustin and the EDC transfer of 24 acres. Other support
was provided for the public sale of 235 acres. The Navy
completed an inventory for Military Munitions Response
Program (MMRP) sites. No MMRP sites were identified at this
installation.
In FY03, the installation issued the OU 1A FS supported by
data from the FY02 interim action and evaluated the permanent
remedy and the draft ROD, which included enhancement of the
interim groundwater removal action treatment system along
with a soil and groundwater hotspot removal. The installation
continued operations and explored opportunities for
enhancement of the UST Site 222 MTBE groundwater
treatment system. The installation issued the draft final version
Navy
geWIUQHPRUVQHH
IDTHQ2—���
ƒ��������2����—�����2��2���2„����2w—����2e���—��2‡���
xGe
ppe2������2��2e�����2IWWW
†yg�D2����������—��D2�������������D2„giD2„g€D2f„iˆD2
�—����—����D2���������2�����—�˜���D2����—�����������D2
w„fi
q������—���2—��2����
2p������2��2h—��X
62TPFR2�������
2i��F2g„g2@g���2‰�—�AX 62PUFH2�������@p‰2PHQTA
2s‚€Gww‚€2ƒ����2p��—�2‚s€G‚gX p‰2PHIIGx���
2p���E‰�—�2‚�����2ƒ�—���X €�—����
of the OU 1B ROD, which included a groundwater treatment
and soil removal remedy at two sites, after modifications to
incorporate the recent Navy/EPA Land Use Controls Principles
and Procedures Agreement. The installation implemented the
OU 3 O&M plan/LUCICP and completed the operating properly
and successfully (OP&S) certification. The installation
completed revising the remedy strategy at Site ST 16A/B to a
petroleum corrective action for polyaromatic hydrocarbons
(PAHs). It also completed developing the removal strategy at
the arsenic AOC site in partnership with redevelopment
activities by the City of Tustin. The installation also completed
sampling at several OU 4 sites to support a dual exit strategy
for these low-risk sites.
In FY04, Tustin MCAS obtained OP&S concurrence for the
Moffet Trenches landfill and OU 3. The installation also
completed additional soil removal and treatment system
enhancements at the UST Site 222 MTBE site. In addition, the
installation continued development of the OU 1B remedial
design (RD), completed the petroleum corrective action at Site
ST 16A/B, and initiated the removal action at the arsenic AOC
site. The Navy issued a draft RD for OU 1.
In FY05, Tustin MCAS completed a time-critical removal action
for OU 1A and issued a final ROD/remedial action plan (RAP).
The installation completed selected soil removal activities
associated with the OU 1A remedial action (RA). The Navy
issued the final ROD/RAP for OU 1B and completed a work
plan and field activities. Long-term management (LTM)
continued at OU 3. The installation issued a final No Further
Action ROD/RAP for OU 4A. The installation issued an FS for
OU 4B. The installation finalized the closure report for the
arsenic AOC. Tustin MCAS developed and obtained
concurrence from California Regional Water Quality Control
Board of closure criteria for the MTBE groundwater site. The
installation closed the last AOC in the compliance program.
p‰HT2s‚€2€�������
Tustin MCAS conducted a 5-year review at OU 3 for the
continued LTM phase of a landfill cap. In addition, the
installation completed soil removal activities at OUs 1A and 1B.
The Navy developed a tiered closure criteria for the MTBE
groundwater site.
The installation began a revised draft FS; however, regulatory
issues delayed the final FS and PP for OU 4B. In addition,
regulatory issues delayed the RD/RA work plan for groundwater
OUs 1A and 1B.
p‰HT2ww‚€2€�������
The Navy has identified no MMRP sites at this installation.
€�—�2��2e����
Plan of action items for Tustin Marine Corps Air Station are
grouped below according to program category.
22222s‚€
0 Complete the RD/RA work plan and field
activities for groundwater at OUs 1A and 1B
in FY07.
0 Finalize 5-year review and continue LTM at OU
3 in FY07.
0 Revise draft FS, complete PP, and conduct a
public meeting for OU 4B in FY07.
0 Continue MTBE groundwater site remediation in
FY07-FY08.
22222ww‚€
There are no MMRP actions scheduled for FY07 or
FY08.
„�����D2g—�������—
M-195