Public  Announcement
                                                              October 21, 2009
           U.S. ENVIRONMENTAL PROTECTION AGENCY, REGION 6
          U.S. ARMY CORPS OF ENGINEERS, GALVESTON DISTRICT
            TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
INTRODUCTION: Notice is hereby given of a Permit Evaluation Requirement Process
(Process) effective as of November 1, 2009 for all proposed and existing permits within the
identified Area of Concern until further notice. The Area of Concern and Process is summarized
in Attachment A.

BACKGROUND: On March 19, 2008, the EPA placed the San Jacinto River Waste Pits
Superfund Site (Site) on the National Priorities List.  This event marks the beginning of several
steps that the EPA will be taking to clean up the Site thru the Comprehensive Environmental
Response, Compensation, and Liability Act (CERCLA) process. The Site is comprised of an
area of land and an area of the San Jacinto River bottom, i.e., river sediment that is contaminated
with certain hazardous materials from released waste paper mill sludge in an area where the
Interstate Highway 10 Bridge crosses over the San Jacinto River.

Due to the Site being partially located in the San Jacinto River, area permitted activities, issued
under Section 404 of the Clean Water Act (CWA) and Section 10 of the Rivers & Harbors Act of
1899 (RHA) may impact the Site. Those permitted activities that impact the Site may expose
permittees to CERCLA liability. To minimize permittee exposure to CERCLA liability and to
continue to effectively evaluate proposed and permitted activities, an interagency workgroup
between U.S. Environmental Protection Agency (EPA), U.S. Army Corps of Engineers
(USAGE), and Texas Commission on Environmental Quality (TCEQ) developed a Process,
which all permit applicants and existing permittees within the area of concern must undertake.

In summary, as part of the Process, all permit applicants and existing permittees within the area
of concern must conduct certain sampling events to ensure that any activities conducted,
especially activities involving dredging or disposal of dredged materials, do not impact Site
investigation and cleanup.

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The verification of such sampling events and adherence to the Process will be completed by
TCEQ. The issuance of permits for work and/or activities regulated under Section 10 of the
RHA and/or Section 404 of the CWA, with any associated special conditions (if necessary), will
be completed by USAGE.

Questions concerning the Process should be addressed to: Mr. Stephen Ellis, Project Manager,
Superfund/SSDAP Section, Remediation Division, Texas Commission on Environmental
Quality, 12100 Park 35 Circle, Austin, TX 78753, phone: (512) 239-5337, email:
stellis@tceq.state.tx.us

Questions concerning the permits issuance should be addressed to: Ms. Felicity Dodson, Project
Manager, U.S. Army Corps of Engineers, Galveston District, 2000 Fort Point Road,  Galveston,
TX 77550, phone: (409) 766-3105, email: felicitv.a.dodson@usace.army.mil

Questions concerning the National Priorities List, the Site, or steps involved in a Superfund site
cleanup should be addressed to: Mr. Donn Walters, Regional Community Relations Liaison, U.S.
Environmental Protection Agency, 1445 Ross Ave, Dallas, TX 75202, phone: (214)  665-6483,
email: waiters. donn@epa.gov

Questions concerning CERCLA liability should be addressed to: Ms. Barbara Nann, Assistant
Regional Counsel, U.S. Environmental Protection Agency, 1445 Ross Ave, Dallas, TX 75202,
phone: (214) 665-2157, email: nann.barbara@epa.gov

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PERMIT PRE-CONDITIONS AND CONDITIONS PROCESS
I.
AREA OF CONCERN DESCRIPTION
                                                                      •j!|    Area of Concern
                                                                          San Jacinto Waste Pits
                                                                            Harris County, TX
                                                                              Area of Concern
                                                                              San Jacinto Waste Pits
                                                                          Sources:
                                                                          Imagery- ESRI
                                                                          Waste Pits - TCEQ/UofH
                                                                          */ea of Concern - TCEQ
                                                                            0  0.25  0.5
                                                                                 Miles
Horizontal Datum Name: NAD 83
Ellipsoid Name: GRS 80

SOUTH of:
longitude -95.063977  latitude 29.833028
(line perpendicular to river channel from approximately 20400 Rio Villa Drive)

NORTH of:
longitude -95.086488  latitude 29.761463
(line of sight bearing from DeZavalla Point to south terminal of Lynchburg Ferry, then along
ferry route to north terminal).

                                            1

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II.     PRE-CONDITIONS AND CONDITIONS PROCESS
II.A.   PERMIT PRE-CONDITIONS PROCESS

       TCEQ shall verify the fulfillment of the pre-conditions process (sections II.A.l. to II.A.4.) and
       certify to USAGE the resulting conditions to be integrated into the permit (section II.A.5.).

    II.A.l.     Required Sampling Procedures

           •   SOP 1.4- Management of IDW
           •   SOP 1.5-Decontamination
           •   SOP 6.1-Documentation
           •   SOP 6.2- Homogenization of Soil Samples
           •   SOP 6.4- Sample Handling and Control
           •   SOP 8.1- Surface Water Sampling Using the Direct Method
           •   SOP 9.1-Sediment Sampling
           •   SOP 17.1-GPS Data Collection and Submission

    II.A.2.     Required State of Texas Lab Certification

           •   NELAC standard and accreditation process:
               http://www.nelac-institute.org/docs/2003nelacstandard.pdf

           •   Current list of accredited labs:
              http://www.tceq.state.tx.us/assets/public/compliance/compliance  support/qa/txnelap lab
               list.pdf

    II.A.3.     Required Sample Number & Distribution

           II.A.3.1.   Sample Number: A minimum of two samples (one vertical composite sample and
                  one post-dredged surface sample) shall be submitted per 5,000 cubic yards of total
                  planned dredged volume (including any planned overdredges or advanced
                  maintenance).

              •   Post-dredged surface sample (ie- representing the sediment to be exposed by the
                  dredging) equates to one discrete sample that represents the 6" section immediately
                  below the planned dredged depth in the same location(s) as determined in section
                  II.A.3.2.

           II.A.3.2.   Sample Distribution:  Samples identified in section II.A.3.1. shall be distributed
                  evenly across the total planned dredged area.

    II.A.4.     Required Sample Analysis

           •   Laboratory sample analysis shall be via EPA 1613, EPA 8280b, or EPA 8290a.
           •   Laboratory results shall be reported as TEQ and TCDD organic carbon normalized or
              TCDD non-organic carbon normalized.
           •   Laboratory shall use WHO 2005 TEF to calculate TEQ.

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    II.A.5.     Conditions Determination

           •  If sample >1000 ppt TEQ, then disposal of sample's representative volume (or dredged
              materials) shall be in a hazardous waste landfill.

           •  If sample >33 ppt TCDD organic carbon normalized and <1000 TEQ; or, >0.45 ppt
              TCDD non-organic carbon normalized and <1000 TEQ, then disposal of sample's
              representative volume (or dredged materials) shall be in a hazardous waste landfill or
              upland confined disposal area.

           •  If sample <33 ppt TCDD organic carbon normalized; or, <0.45 ppt TCDD non-organic
              carbon normalized, then no restrictions on disposal location of sample's representative
              volume (or dredged materials).

II.B.   PERMIT CONDITIONS PROCESS:

       After the TCEQ's evaluation of Section II.A. is submitted to the USAGE Galveston District, the
       USAGE will review the information and will add special conditions to Department of the Army
       permits when such conditions are necessary to satisfy legal requirements under the Clean Water
       Act and Rivers and Harbors Act of 1899 to otherwise satisfy the public interest requirement.  The
       USAGE will only be responsible for enforcing those conditions that are specifically tied to
       Section 404 of the Clean Water Act and Section 10 of the Rivers and Harbors Act of 1899.

       In addition, the permit shall contain the following language:

       "By accepting this permit, the permittee agrees to accept potential liability for both response costs
       and natural resource damages, to the same extent as would be inherent under the Comprehensive
       Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) as amended (42
       U.S.C. 9601  et. Seq.). Further, the permittee agrees that this permit does not exclude the
       permittee from liability under the CERCLA, nor does the permit waive any liability for response
       costs, damages, and any other costs that may be assessed under the CERCLA."

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