Southwest Region BECOS TO 2 PWS Attch 2 - Base Specific Req George Dft 20 SEP 19 v3.0.docx

FA4890-06-R-9999

Attachment 1

APRIL XX, 2009

- final –

BECOS TO 2

ATTACHMENT 2

20 September 2019

1.1 Scope

The former George Air Force Base (AFB) is located in the City of Victorville, San Bernardino County, California, approximately 70 miles northeast of Los Angeles. The former base is located in the Victor Valley portion of the Upper Mojave River Basin, on top of the Mojave River Bluffs on the west side of the Mojave River. The former base covers 5,062 acres and was officially closed on 15 December 1992.

The former George AFB is listed on the National Priorities List (NPL) and has a Federal Facility Agreement (FFA) in place. The restoration program at former George AFB is currently managed under Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and California State Water Resources Control Board. Regulatory oversight is provided by the United States Environmental Protection Agency Region 9 (USEPA) and the State of California, Regional Water Quality Control Board (RWQCB), Lahontan Region. Remedial activities at CERCLA sites are being performed in accordance with the existing Records of Decision (RODs) for Operable Units (OUs) 1, and 3; presumptive remedies are ongoing at the two OU 5 soil vapor extraction (SVE) sites, and several other sites as Non-CERCLA sites. Property transfer is expected to be completed by 2024 and must be preceded by a demonstration of OU 1 In-Situ Remedy Optimization Study, OU 1 Record of Decision Amendment (RODA), and Operating Properly and Successfully (OPS) of the OU 1, Site CG070, Trichlorethene (TCE) groundwater plume.

The Final OU 1 ROD was published in March 1994 and documented the pump and treat (P&T) remedy for Site CG070, the approximately 680-acre TCE plume, which has spread from the Upper to the Lower Aquifer (off-site). The P&T remedy was discontinued in March 2003 and is currently being evaluated In-Situ Remedy Optimization study along with natural attenuation. Groundwater monitoring for Site CG070 is ongoing.

The Final OU 3 ROD was published in November 1998. Ongoing activities include operation and maintenance (O&M) of SVE systems at Sites FT019a and c; groundwater monitoring at Sites OT069 and LF044; and Long-Term Monitoring and Maintenance (LTMM), Version 4 and Land Use Control (LUC)/Institutional Control (IC) review and inspections at Landfill Sites DP003, DP004, LF007, LF012, and LF014. Current LTMM activities these landfill sites involve periodic groundwater monitoring, Desert Tortoise survey, cap inspection and repair and maintenance. The Annual Monitoring and Maintenance Report documents rain event observations, erosion study results, geotechnical results, and includes a topographical survey.

The Final OU 5 ROD for the three Sheet Ranges (AR # 460689) was completed on 24 June 2015. This ROD indicates a No Further Action (NFA) preferred alternative for Sites OT072, OT073, and OT074. These sites were transferred by the Air Force to the Southern California Logistics Airport Authority (SCLAA) between 2002 and 2006. The deeds included provisions for access to the sites for remedial activities, but did not include specific land use restrictions. O&M of SVE systems had been ongoing at OU 5 Sites FT082 and SS083 since summer 2006. These SVE systems were re-started in August 2011 due to systems failure to meet compliance requirements. Final remedies for these sites are to be documented in the OU 5 ROD, which is under preparation. The Final OU 5 FFS (AR #2381) and other OU 5 documents can be viewed/downloaded from the Air Force Real Property Agency (AFRPA) Administrative Records (AR) at https://afrpaar.lackland.af.mil/ar/docsearch.aspx and PBR reference website.

Remedial activities at non-CERCLA sites involve groundwater monitoring at Sites SS030, ST067b, and OT071; free-product recovery at Sites SS030, ST067b, and SS084; and SVE systems O&M at Sites SS030 (ST054, ST057 and SS084) ST067b. Draft versions of the Pesticides Corrective Action Plan (PCAP) for Site OT071 and Petroleum Sites Corrective Action Plan (PSCAP) for the non-CERCLA Sites SS030, ST054, ST057 and SS084 (Flightline), and Site ST067b (Part 2) can be viewed/downloaded from the PBR reference website. Regulatory comments received on the Draft PCAP and PSCAP (Flightline and Part 2) will be posted in the PBR reference website.

The Final 2017 Basewide Annual Monitoring and Operations Report for CERCLA and Non-CERCLA Sites (AR # 575264 through 575264.7), dated June 2018, and the Final Fourth Five-Year Review Report (AR # 541919), dated September 2016, contains the most recent data on restoration activities at the Former George AFB.

In addition to the requirements presented in this PWS, this scope includes the following:

· None

Contractors are not responsible for the following:

· Response complete for military munitions surface clearance for Military Munition Response Program (MMRP) Site XU400.

· Disposal of munition debris (MD) stored in 60, 5-gallon buckets in bunker (Building) 753.

1.3 Applicable Documents

Key Documents

AR # 739

March 1994

AR # 1294

November 1998

AR # 2112

December 2006

AR # 2236

May 2008

AR # 2252

May 2008

Significant Difference (ESD) Reference Website

September 2008

(AQMD) Permits for Sites SS084, ST054, ST057, and ST067b Reference Website

Website

1990-2008

1.4 Work Ramp-Up and Transition

Transition of Work

Complete Reporting Complete

1.5 Remedial System Components

· See Attachment 1 regarding remedial system components.

2.6.1 Meeting/Teleconference Support

· The BRAC Cleanup Team (BCT) Meetings are held on a two to three month basis at alternating locations between Sacramento, CA and Victorville, CA. However, PBR contractor conference calls with AFCEC are held on a biweekly basis, and BCT conference calls with the regulatory agencies are held on a bimonthly basis.

2.6.2 Public Meetings and Hearings

· The Restoration Advisory Board (RAB) has been adjourned since 2007. Therefore, no RAB meetings are needed. However, a Public Notice Meeting will be held on an “as needed basis”. The meeting location will be in the City of Victorville vicinity.

2.6.5 Site Access: Permits, Easements, and Work Site Access

· The PBR contractor will be responsible to obtain/maintain the following permits as needed for the eight SVE systems and for the two Site CG070 monitoring wells NZ-135b/NZ-135c and P-03. The permits are listed below:

i. Mojave Desert Air Quality Management District (MDAQMD), Permit to Operate C008549 for Site ST054 (SS030), which expires 11/30/2020,

ii. MDAQMD, Permit to Operate C008547 for Site ST057 (SS030), which expires 11/30/2020,

iii. MDAQMD, Permit to Operate C009031 for Site ST067b – 250 scfm, which expires 11/30/2020,

iv. MDAQMD, Permit to Operate C010742 for Site ST067b – 500 scfm, which expires 11/30/2020,

v. County of San Bernardino, Department of Public Works, Permit No P-042009033 for monitoring wells NZ-135b/NZ-135c and P-03.

· The PBR contractor will also be responsible for maintaining the following ingress/egress easements for Air Force monitoring wells located on private property. The following is a list of monitoring wells:

i. NZ-49 and NZ-136 with the Helendale 40 LLC,

ii. NZ-50 and NZ-137 with the Camp and Julia Second Family LTD,

iii. NZ-24 easement to be established under current PBR by end of POP,

iv. NZ-36 easement to be established under current PBR by end of POP,

v. NZ-39 easement to be established under current PBR by end of POP,

vi. NZ-72 easement to be established under current PBR by end of POP,

vii. NZ-93 easement to be established under current PBR by end of POP,

viii. NZ-97 easement to be established under current PBR by end of POP,

ix. NZ-98 easement to be established under current PBR by end of POP,

x. NZ-99 easement to be established under current PBR by end of POP,

xi. NZ-101 easement to be established under current PBR by end of POP,

xii. NZ-102 easement to be established under current PBR by end of POP,

xiii. NZ-103 easement to be established under current PBR by end of POP,

xiv. NZ-105R easement to be established under current PBR by end of POP.

2.9 Contractor Documentation

· All RWQCB submissions from the Air Force need to be uploaded into the State of CA, GeoTracker data base.

3.4 Computer Aided Design Drawing (CADD) and Geographic Information Systems (GIS) Updates

· No base-specific requirements.

6.14 Land Use Controls (LUC)

· No State of California executed land use covenants (LUC) exist at the former George AFB.

6.15 Five-Year Reviews

· The Final Fourth Five-Year Review was issued on September 2016 with an assessment of protectiveness of remedial actions implemented at the former George AFB. Therefore, the Fifth Five-Year Review will be due by September 2021.