Addendum No. 1 Geotechnical Reports This

CITY OF GALVESTON – RFP # 19-29 ADDENDUM # 1 49TH STREET IMPROVEMENTS

Date: 8/22/2019

To: Prospective Proposers

Subject: Addendum No. 1 Geotechnical Reports

This addendum forms part of the proposal and contract documents and modifies the original solicitation documents dated 8/14/2019 Acknowledge receipt of this addendum in the space provided below. FAILURE TO DO SO WILL SUBJECT OFFEROR TO DISQUALIFICATION.

The Geotechnical Reports are attached; addendum must be acknowledged and included in the submittal.

I hereby certify receipt of this addendum and have incorporated its information or changes in preparation of my submittal.

______Authorized Signature Date

______Printed Name Company Name

A COPY OF THE ADDENDUM MUST BE SIGNED AND RETURNED WITH YOUR PROPOSAL

LIMITED PHASE I ENVIRONMENTAL SITE ASSESSMENT 49TH STREET PAVING IMPROVEMENTS FROM AVENUE ‘P’ TO AVENUE ‘S” 1/2 CITY OF GALVESTON, TEXAS

PROJECT NO. 18-104E

STANTEC CONSULTING SERVICES INC. HOUSTON, TEXAS

GEOTECH ENGINEERING AND TESTING

SERVICING

TEXAS, LOUISIANA, NEW MEXICO, OKLAHOMA

www.geotecheng.com

MARCH 2018

TEXAS BOARD OF PROFESSIONAL ENGINEERS REGISTRATION NUMBER F-001183

TABLE OF CONTENTS

Page

ABBREVIATIONS ...... 1

1.0 EXECUTIVE SUMMARY ...... 2

2.0 INTRODUCTION ...... 6 2.1 Purpose ...... 6 2.2 Detailed Scope-of-Services ...... 7 2.3 Credentials of Environmental Professionals ...... 8 2.4 Significant Assumptions ...... 8 2.5 Limitations and Exceptions of Assessment ...... 9 2.6 Special Terms and Conditions ...... 9 2.7 Reliance ...... 9

3.0 SITE DESCRIPTION ...... 10 3.1 Location and Legal Description ...... 10 3.2 Site and Vicinity Description ...... 10 3.3 Past and Current Uses of the Property ...... 10 3.4 Description of Structures ...... 10 3.5 Current Uses of the Adjoining Properties ...... 10

4.0 USER - PROVIDED INFORMATION ...... 11 4.1 Reason for Performing the Phase I ESA ...... 11

5.0 RECORDS REVIEW...... 11 5.1 Standard Environmental Record Sources, Federal and State ...... 11 5.1.1 RCRA Database (RCRIS List)...... 12 5.1.2 Leaking Petroleum Storage Tank (LPST) Site ...... 13 5.1.3 RCRA NonGen / NLR Site ...... 13 5.1.4 Formerly Used Defense Sites (FUDS) ...... 14 5.1.5 Unexploded Ordnance Site (UXO) ...... 15 5.1.6 TX Ind. Haz. Waste Site ...... 16 5.1.7 TX IHW CORR ACTION Site ...... 16 5.1.8 NY MANIFEST site ...... 17 5.1.9 WI MANIFEST site ...... 17 5.1.10 MN MANIFEST site...... 17 5.1.11 EDR Hist. Auto site ...... 17 5.2 Physical Setting Sources ...... 18 5.2.1 Topography ...... 18 5.2.2 Soils/Geology ...... 18 5.2.3 Surface Water Hydrology ...... 18 5.2.4 Hydrogeology ...... 18 5.3 Oil and Gas Wells ...... 19 5.4 Water Wells ...... 19 5.5 Flood Insurance Rate Map ...... 19 5.6 Historical Use Information on the Project Site and Adjoining Properties ...... 19

i GEOTECH ENGINEERING AND TESTING

5.6.1 Historical Aerial Photographs ...... 20 5.6.2 Historical Topographic Maps ...... 20 5.6.3 Sanborn Fire Insurance Maps ...... 21 5.6.4 Vapor Encroachment Screening Summary ...... 21 5.6.5 Historical Use Information Summary ...... 21 5.7 NEPA Search Description, Federal and State ...... 21

6.0 SITE RECONNAISSANCE ...... 22 6.1 Methodology and Limiting Conditions ...... 22 6.2 General Site Setting ...... 22 6.3 Exterior and Interior Observations ...... 22 6.3.1 Current Use(s) of the Property ...... 22 6.3.2 Hazardous Substances ...... 22 6.3.3 Storage Tanks...... 22 6.3.4 PCBs ...... 22 6.3.5 Wells ...... 23 6.3.6 Septic Systems ...... 23 6.3.7 Drums/Containers ...... 23 6.3.8 Odors ...... 23

7.0 INTERVIEWS ...... 23

8.0 FINDINGS ...... 24

9.0 CONCLUSIONS AND OPINIONS ...... 24

10.0 STANDARD OF CARE ...... 24

11.0 DEFINITIONS ...... 24

APPENDICES

Appendix A – Site Maps Appendix B – Site Photographs Appendix C – Regulatory Records Documentation – Executive Summary Appendix D – Physical Setting Information – Summary Appendix E – Historical Records Documentation E-1 – Historical Aerial Photographs E-2 – Historical Topographic Map E-3 – Historical Sanborn Fire Insurance Map E-4 – Vapor Encroachment Screen Appendix F – NEPA Search Description Appendix G – Interview Documentation Appendix H – Credentials of Environmental Professionals

ii GEOTECH ENGINEERING AND TESTING

ABBREVIATIONS

AOC Area of Concern CA Control Authority CERCLA Comprehensive Environmental Response, Compensation and Liability Act CERCLIS Comprehensive Environmental Response, Compensation and Liability Information System CERC-NFRAP Comprehensive Environmental Response, Compensation – No Further Remedial Action Planned CORRACTS Resource Conservation and Recovery Act, Corrective Action CREC Controlled Recognized Environmental Condition EPA Environmental Protection Agency ESA Environmental Site Assessment FEMA Federal Emergency Management Agency HREC Historical Recognized Environmental Conditions LPST Leaking Petroleum Storage Tank NPL National Priorities List PCB Polychlorinated Biphenyls PST Petroleum Storage Tank. Could also be used as AST (Above-ground Storage Tank) or UST (Underground Storage Tank) RAP Response Action Plan RCRA-CESQG Resource Conservation and Recovery Act – Conditionally Exempt Small Quantity Generator RCRA-LQG Resource Conservation and Recovery Act – Large Quantity Generator RCRA-NonGen Resource Conservation and Recovery Act – Non- Generator RCRA-SQG Resource Conservation and Recovery Act – Small Quantity Generator RCRA-TSDF Resource Conservation and Recovery Act – Treatment, Storage, and/or Disposal Facility REC Recognized Environmental Condition RFA RCRA Facility Assessment RFI RCRA Facility Investigation SWF/LF Solid Waste Facilities/Landfill Sites TCEQ Texas Commission on Environmental Quality US ENG CONTROLS Engineering Control Sites List US INST CONTROL Sites with Institutional Controls VCP Voluntary Cleanup Program VEC Vapor Encroachment Condition VES Vapor Encroachment Screening

Project No. 18-104E 1

1.0 EXECUTIVE SUMMARY

Project Description:

We have performed a Phase I Environmental Site Assessment (ESA) for the proposed 49th Street Paving Improvements from Avenue ‘P’ to Avenue ‘S’ ½ in the City of Galveston, Texas.

Location:

The project site is located at the 49th Street from Avenue ‘P’ to Avenue ‘S’½ in the City of Galveston, Texas. The length of paving improvement for the 49th Street is approximately 2,275± linear feet. The site vicinity map is shown on Plate A-1 in Appendix A.

Current/Historic Land Use:

Historically, based on our review of the aerial photograph from 1952 to 2014, project alignment was paved. Gradual development was observed in the vicinity of the project site from 1969. In general, residential and commercial facilities are located in the vicinity of the project site.

Records Review:

Our review of agency records and database indicates that there is one (1) SEMS-ARCHIVE site within ASTM Standard Search radius around the subject property.

 GALVESTON FEDERAL ARMORY– SEMS-ARCHIVE site - Located at 5301 AVENUE S; Galveston, TX, approximately 0.316 miles (1671-ft) to the Southwest of the project site.

Our review of agency records and database indicates that there is one (1) RCRA-SQG sites within ASTM Standard Search radius around the subject property.

 UNIV OF HOUSTON MARINE SCIENCE– RCRA-SQG, FINDS, ECHO - Located at 4700 AVENUE U; Galveston, TX, approximately 0.200miles (1056-ft) to the South-Southeast of the project site.

Our review of agency records and database indicates that there are four (4) TX LPST sites within ASTM Standard Search radius around the subject property.

 STEP N GO– TX LPST, TX UST, TX Financial Assurance - Located at 2427 53RD ST, Galveston, TX; approximately 0.277 miles (1464-ft) to the Southwest of the project site.

 ONE STOP MART– TX LPST, TX UST, TX Financial Assurance - Located at 1902 45TH ST, Galveston, TX; approximately 0.293 miles (1546-ft) to the Northeast of the project site.

 ICE BOX 7340– TX LPST - Located at 4502 SEAWALL BLVD, Galveston, TX; approximately 0.379 miles (2002-ft) to the Southwest of the project site. Project No. 18-104E 2

 ICE BOX 7340 GALVESTON– TX LPST, TX UST, TX Financial Assurance, TX GCC - Located at 4502 SEAWALL BLVD, Galveston, TX; approximately 0.379 miles (2002-ft) to the Southwest of the project site.

Our review of agency records and database indicates that there are two (2) RCRA NonGen / NLR sites within ASTM Standard Search radius around the subject property.

 US DEPARTMENT OF COMMERCE NOAA – RCRA NonGen / NLR - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– RCRA NonGen / NLR - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site.

Our review of agency records and database indicates that there are six (6) FUDS sites within ASTM Standard Search radius around the subject property.

 TEXAS A & M UNIVERSITY (CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.235 miles (1242-ft) to the South- Southeast of the project site.

 NATIONAL OCEANIC ATMOSPHERIC AGENCY (FT. CROC)– FUDS - No address, Galveston, TX; approximately 0.259 miles (1365-ft) to the South of the project site.

 FORT CROCKETT PRIVATE OWNERSHIPS)– FUDS - No address, Galveston, TX; approximately 0.339 miles (1791-ft) to the South- Southwest of the project site.

 CITY OF GALVESTON (CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.269 miles (1418-ft) to the Southwest of the project site.

 GALVESTON COUNTY(CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.420 miles (2217-ft) to the South- Southeast of the project site.

 GALVESTON INDEPEN SCHOOL DISTRICT (CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.430 miles (2269-ft) to the Southwest of the project site.

Project No. 18-104E 3

Our review of agency records and database indicates that there is five (5) UXO sites within ASTM Standard Search radius around the subject property.

 POTENTIAL OE– UXO - No address, Galveston, TX; approximately 0.235 miles (1242-ft) to the South- Southeast of the project site.

 CROCKETT PARK– UXO - No address, Galveston, TX; approximately 0.269 miles (1418-ft) to the Southwest of the project site.

 ARTILLERY LAND AND SKEET RANGE AREAS– UXO - No address, Galveston, TX; approximately 0.420 miles (2217-ft) to the South- Southeast of the project site.

 ARTILLERY RANGES WATER AREA– UXO - No address, Galveston, TX; approximately 0.420 miles (2217-ft) to the South- Southeast of the project site.

 BURNET SCHOOL– UXO - No address, Galveston, TX; approximately 0.430 miles (2269-ft) to the Southwest of the project site.

Our review of agency records and database indicates that there are three (3) TX Ind. Haz Waste sites within ASTM Standard Search radius around the subject property.

 MARINE SCIENCE INSTITUTE– TX Ind. Haz Waste - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site.

 US DEPARTMENT OF COMMERCE NOAA– TX Ind. Haz Waste - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– TX Ind. Haz Waste, TX NPDES - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site.

Our review of agency records and database indicates that there is one (1) TX IHW CORR ACTION site within ASTM Standard Search radius around the subject property.

 TEXAS A&M UNIVERSITY AT GALVESTON– TX ENF, TX IHW CORR ACTION - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site.

Project No. 18-104E 4

Our review of agency records and database indicates that there is one (1) NY MANIFEST site within ASTM Standard Search radius around the subject property.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– NY MANIFEST - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site.

Our review of agency records and database indicates that there is one (1) WI MANIFEST site within ASTM Standard Search radius around the subject property.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– WI MANIFEST - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site.

Our review of agency records and database indicates that there are two (2) MN MANIFEST site within ASTM Standard Search radius around the subject property.

 US DEPT OF COMMERCE NATL MARINE– MN MANIFEST - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site.

 TEXAS A & M UNIVERSITY– MN MANIFEST - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site.

Our review of agency records and database indicates that there is one (2) EDR Hist. Auto site within ASTM Standard Search radius around the subject property.

 GPY-GULF PRIDE FOR YOUTH INC– EDR Hist Auto - Located 4716 WOODROW AVENUE; Galveston, TX, approximately 0.099 miles (524-ft) to the Southeast of the project site.

 GULF SPRAY PRESSURE WASHING– EDR Hist Auto - Located at 4806 AVENUE Q 1/2; Galveston, TX, approximately 0.041 miles (219-ft) to the North-Northeast of the project site.

EDR NEPA Search Description:

Our review of agency records and database indicates that there are four (4) Threatened and Endangered Species sites within EDR NEPA Search radius around the subject property.

Project No. 18-104E 5

Site Visit:

Site reconnaissance was conducted on March 12, 2018 by Mr. Joseph Ali Ph. D., an environmental professional with Geotech Engineering and Testing (GET). The qualification of environmental professional is presented in Appendix H of this report. The project site is located at the located at 49th Street from Avenue ‘P’ to Avenue ‘S½’ in City of Galveston, Texas. The length of drainage improvement alignment for the 49th Street is approximately 2,275-ft. Currently, the project alignment is paved. In general, residential and commercial facilities are located in the vicinity of the subject site. No significant environmental hazardous products or conditions were observed at the time of our site visit.

Findings:

We have performed a Phase I Environmental Site Assessment (ESA) for the proposed 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S½’ in City of Galveston, Texas. This assessment was performed in general accordance with ASTM E1527-13 requirements. This Phase I ESA has revealed no evidence of recognized environmental conditions (REC), controlled recognized environmental condition (CREC) and historical recognized environmental conditions (HREC) in connection with the project site.

Conclusions and Opinions:

Based on our site reconnaissance and review of governmental agency database records, it is our opinion that the proposed 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S½’ in City of Galveston, Texas has low recognized environmental conditions (RECs). Therefore, it is our opinion that a Phase II ESA is not recommended for the subject site.

2.0 INTRODUCTION

We have performed a Phase I Environmental Site Assessment (ESA) for the proposed 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S½’ in City of Galveston, Texas. The project site is located at 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas. The length of paving improvement alignment for the 49th Street is approximately 2,275-ft. The site vicinity map is shown on Plate A-1 in Appendix A.

2.1 Purpose

The objective of the Phase I ESA was to identify “conditions indicative of releases or threatened releases” of hazardous substances or petroleum products at the project alignment, if such releases would pose a threat to human health or the environment. The objective of the Phase I ESA also includes evaluation of the current and historical conditions of the project alignment in an effort to identify recognized environmental conditions (REC), historical REC (HREC) and controlled REC (CREC) in connection with the project alignment.

Project No. 18-104E 6

The term recognized environmental condition (REC) means the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property due to release to the environment; under conditions indicative of a release to the environment or under conditions that pose a material threat of future release. Controlled Recognized Environmental Conditions (CREC’s) are defined as a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority, with hazardous substances or petroleum products allowed to remain in place subject to the implementation of required controls. Historical Recognized Environmental Conditions (HREC’s) are defined as a past release of any hazardous substances or petroleum products that has occurred in connection with the property and has been addressed to the satisfaction of the applicable regulatory authority or meeting unrestricted use criteria established by a regulatory authority, without subjecting the property to any required controls.

The terms are not intended to include de minimis conditions that generally do not present a material risk of harm to public health or the environmental and that generally would not be the subject of an enforcement action if brought to the attention of appropriate governmental agencies.

This assessment was performed to achieve the following objectives:

o Evaluate past and current land use of the project alignment, and adjacent properties, for indications of the generation, use, storage, transportation, and/or disposal of hazardous substances or petroleum products at the site.

o Evaluate the potential for soil and/or groundwater contamination due to the presence or potential presence of hazardous substances or petroleum products.

o Identify serious or potential serious threats to human health or the environment to reduce the risk to agents, employees, contractors and the general public.

o Recommend additional investigations as necessary to assess potential contamination of the project alignment, and to determine the nature, level and extent of such contamination if present.

2.2 Detailed Scope-of-Services

The following components comprise the fundamental scope under which this Phase I ESA was performed. This assessment was conducted in general accordance with Phase I ESA Process ASTM E 1527-13. In general, the scope of our work is as follows:

o Records Review in general accordance as per ASTM E 1527-13 − Review of records, both current and historical, that would help identify RECs in connection with the subject property.

o Site reconnaissance − Visual and physical observations of the subject site, and any structures located on the project site, to the extent not obstructed by bodies of water, adjacent buildings, or other obstacles.

Project No. 18-104E 7

o Interviews − Interviews with neighbors, owners or occupants along the project site, as well as local government officials that may have jurisdiction of the area in which the project site lie.

o Report – A document containing the findings and conclusions of the assessment, including methodologies, information sources, and other necessary documentation.

o A wetland study is not within the scope of our work.

o Asbestos or lead based paint study was not within the scope of our work.

Typically, a Phase I ESA does not include sampling or testing of air, soil, groundwater, surface water, or building materials. These activities would be carried out in a Phase II ESA, if required. For this Phase I ESA, no additions to the ASTM E 1527-13 Standard were made.

Some substances may be present on a project site in quantities and under conditions that may lead to contamination of the site, or nearby properties, but are not included in Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)’s definition of hazardous substances or do not otherwise present potential liability.

There may be environmental issues or conditions at project site that parties may wish to assess in connection with commercial real estate that are outside the scope of Practice. These issues and/or conditions are designated non-scope consideration or additional services. If, during the course of this assessment, such consideration or services are addressed in this report, they will be so designated.

2.3 Credentials of Environmental Professionals

The GET team includes personnel from a variety of environmental disciplines. Key personnel involved in this project included the following:

o Yongwan (Alex) Kwon, P.E. – Chief Engineer

o Joseph Ali Ph. D. – Project Manager

Detail information about the credentials of environmental professionals is shown in Appendix H.

2.4 Significant Assumptions

There is possibility that even with the proper application of these methodologies there may exist at the subject site conditions that could not be identified within the scope of the assessment or which were not reasonably identifiable from the available information. GET believes that the information obtained from the record review and the interviews concerning the site is reliable. However, GET cannot and does not warrant or guarantee that the information provided by these other sources is accurate or complete. The methodologies of this assessment are not intended to produce all-inclusive or comprehensive results, but rather to provide Stantec Consulting Services Inc. with information relating to the subject site.

Project No. 18-104E 8

2.5 Limitations and Exceptions of Assessment

The Phase I ESA report and the opinions expressed herein concerning the potential for environmental impairment liabilities from regulated sites, is partially based on published information. Undetectable environmental risks may be present and not documented by regulatory agency files. GET therefore does not warrant, guarantee, or certify the accuracy or completeness of such regulatory information. GET disclaims any and all liability for errors, omissions, or inaccuracies in such information and data, and for any and all inaccurate conclusions, inadvertent or otherwise, which may be based on such information and data.

2.6 Special Terms and Conditions

This Phase I ESA was authorized by Mr. Robert Moser, P.E. with Stantec Consulting Services Inc., and was prepared for client use in evaluating the potential environmental risks associated with the project site.

This environmental site assessment cannot wholly eliminate uncertainty regarding the potential for RECs in connection with the subject property. Performance of this practice is intended to reduce, but not eliminate, uncertainty regarding the potential for such conditions.

The primary concern of this Phase I ESA was to document significant environmental risks that could substantially impact the proposed subject property. The scope of work was not sufficiently detailed to address localized areas that may have been impacted.

A limited lead and asbestos survey was not included in this assessment. A limited lead and asbestos survey was outside the scope of this Phase I ESA. The limited Polychlorinated Biphenyls (PCBs) survey consisted of a visual survey of the subject property for presence of electrical transformers and evidence of the associated leakage of PCBs. No evidence of electrical transformer leakage was observed on the subject property. Again, it should be noted that our surveys were limited in nature and were confined to the areas surveyed.

The report is based on selected published information referenced in this report which may be present but not documented by regulatory agencies. Regulatory site evaluations for compliance violations and enforcement actions that may indicate potential impacts to the subject property were beyond the scope of our preliminary study. Evaluation of geologic surface faulting, designated flood plain areas and PCB-containing electrical transformers was not included.

This report does not constitute an appraisal of value or legal opinion and GET makes no representations or warranties of the fitness on the subject property for any specific use or value. GET assumes no responsibility for the customer’s, or a third party’s, use of this report. GET shall not be liable for any special consequential or exemplary damages resulting, in whole or in part, from customer’s use of the report.

2.7 Reliance

This report was prepared for the sole and exclusive use by our client, based on specific and limited objectives. All reports, data, maps and other documents prepared by GET as instruments of service shall remain the property of GET. Reuse of these documents is not permitted without written approval by GET. GET assumes no responsibility or obligation for the unauthorized use of this report by other parties and for purposes beyond the stated project objectives and work limitations.

Project No. 18-104E 9

3.0 SITE DESCRIPTION

3.1 Location and Legal Description

We have performed a Phase I Environmental Site Assessment (ESA) for the proposed 49th Street Paving Improvements from Avenue ‘P’ to Avenue ‘S½’ in the City of Galveston, Texas. The project site is located at 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S’ ½ in the City of Galveston, Texas. The length of paving improvement alignment for the 49th Street is approximately 2,275-ft. The site vicinity map is shown on Plate A-1 in Appendix A.

3.2 Site and Vicinity Description

Currently, the project site is vacant and covered with pavement. In general, residential facilities are located in the vicinity of the project site. No significant environmental hazardous products or conditions were observed at the time of our site visit.

3.3 Past and Current Uses of the Property

Historically, based on our review of the aerial photograph from 1952 to 2014, project site was paved. Gradual development was observed in the vicinity of the project site from 1952. In general, residential and commercial facilities are located in the vicinity of the project site.

3.4 Description of Structures

Currently the project site is vacant and covered with pavement.

3.5 Current Uses of the Adjoining Properties

During the site and vicinity reconnaissance, GET observed the following land use on properties in the immediate vicinity of the site:

Direction from Site Occupant / Use Comments North Residential development – South Residential development – East Residential development – West Residential development –

A site vicinity map and a site utility map are shown in Appendix A of this report. Pictures of the proposed project site and adjoining areas are shown in Appendix B of this report.

Project No. 18-104E 10

4.0 USER - PROVIDED INFORMATION

4.1 Reason for Performing the Phase I ESA

We have performed a Phase I Environmental Site Assessment (ESA) for the proposed 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S’ ½ in the City of Galveston, Texas. The project site is located at 49th Street from Avenue ‘P’ to Avenue ‘S’ ½ in City of Galveston, Texas. The length of paving improvement alignment for the 49th Street is approximately 2,275-ft. The purpose of this Phase I ESA was to identify existing or potential RECs (as defined by ASTM E 1527-13) in connection with the project site.

The ASTM Standard User Questionnaire was not submitted to the user since is not appropriate for this type of investigation.

5.0 RECORDS REVIEW

5.1 Standard Environmental Record Sources, Federal and State

A review of regulatory agency site listings (Appendix C) was conducted to evaluate the proximity of documented regulatory sites in reference to the project site being investigated. These agency-regulated sites may be facilities that store, transport, generate, or dispose of regulated waste materials. The listing of these sites does not imply that they impact the project site through undisclosed dumping, surface run-off, or subsurface migration, but are listed solely to show the proximity of the regulated sites to the project site. The locations of the sites are approximate, based on information filed with the respective agencies, and have not been field verified. The following is a list of regulatory agencies from which data was reviewed:

Regulatory Database Search Distance Target Site Total Sites (in mile) Listed Listed Comprehensive Environmental Response, Compensation and Liability Information System 0.5-mile No No (CERCLIS) Comprehensive Environmental Response, Compensation – No Further Remedial Action 0.5-mile No No Planned (CERC-NFRAP) National Priority List (NPL) 1.0-mile No No Resource Conservation and Recovery Act, 1.0-mile No No Corrective Action (CORRACTS) Resource Conservation and Recovery Act – Treatment, Storage, and/or Disposal Facility 0.5-mile No No (RCRA-TSDF) Resource Conservation and Recovery Act – Large 0.25-mile No No Quantity Generator (RCRA-LQG) Resource Conservation and Recovery Act – Small 0.25-mile No 1 Quantity Generator (RCRA-SQG) Resource Conservation and Recovery Act – Conditionally Exempt Small Quantity Generator 0.25-mile No No (RCRA-CESQG)

Project No. 18-104E 11

Regulatory Database Search Distance Target Site Total Sites (in mile) Listed Listed Resource Conservation and Recovery Act – Non- 0.25-mile No 2 Generator (RCRA-NonGen/NLR) Engineering Control Sites List (US ENG 0.5-mile No No CONTROLS) Sites with Institutional Controls (US INST 0.5-mile No No CONTROL) Leaking Petroleum Storage Tanks (LPST) 0.5-mile No 4 Underground Storage Tanks (UST) 0.25-mile No 3 Aboveground Storage Tanks (AST) 0.25-mile No No US MINES 0.25-mile No No Solid Waste Facilities/Landfill Sites (SWF/LF) 0.5-mile No No Sites that have institutional controls (AUL) 0.5-mile No No Voluntary Cleanup Program Database (VCP) 0.5-mile No No PRIORITY CLEANERS 0.5-mile No No DRYCLEANERS 0.25-mile No No SPILLS Target Property No No Industrial & Hazardous Waste Database (Ind. Haz 0.25-mile No 3 Waste) IHW CORR ACTION 0.25-mile No 1 Historical Auto Stations 0.25-mile No 2 Historical Cleaners 0.25-mile No No ROD 1.0-mile No No CONSENT 1.0-mile No No US Brownfields 0.5-mile No No SEMS-ARCHIVE 0.5-mile No 1 Formerly Used Defense Sites (FUDS) 1.0-mile No 6 Unexploded Ordnance (UXO) 1.0-mile No 5 Hazardous Waste From The Generator Through 0.25-mile No 1 Transporters to TSD Facility (NY MANIFEST) Hazardous Waste Manifest Information (WI 0.25-mile No 1 MANIFEST) Hazardous Waste Manifest Data (MN MANIFEST) 0.25-mile No 2

5.1.1 RCRA Database (RCRIS List)

The Resource Conservation and Recovery Act (RCRA) defines and regulates facilities that generate, treat, store or dispose of hazardous waste. Such facilities are listed in the RCRIS database which identifies large quantity generators (> 1000 kg/mo); small quantity generators (between 100 and 1000 kg/mo); transportation, storage, or disposal (TSD) facilities; violators.

Our review of agency records and database indicates that there is (1) SEMS-ARCHIVE site within ASTM Standard Search radius around the subject property.

 GALVESTON FEDERAL ARMORY – SEMS-ARCHIVE - Located at 5301 AVENUE S; Galveston, TX, approximately 0.316 miles (1671-ft) to the Southwest of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

Project No. 18-104E 12

Our review of agency records and database indicates that there is one (1) RCRA-SQG site within ASTM Standard Search radius around the subject property.

 UNIV OF HOUSTON MARINE SCIENCE– RCRA-SQG, FINDS, ECHO - Located at 4700 AVENUE U; Galveston, TX, approximately 0.200miles (1056-ft) to the South-Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.2 Leaking Petroleum Storage Tank (LPST) Site

Our review of agency records and database indicates that there are four (4) LPST sites within ASTM Standard Search radius around the subject property.

 STEP N GO – LPST Site - Located at 2427 53RD ST, Galveston, TX; approximately 0.277 miles (1464-ft) to the Southwest of the project site. - Located at a lower elevation. - This site in final concurrence issued, case closed. - This site should not pose REC to the project site.

 ONE STOP MART – LPST Site - Located at 1902 45TH ST, Galveston, TX; approximately 0.293 miles (1546-ft) to the Northeast of the project site. - Located at a lower elevation. - This site in final concurrence issued, case closed. - This site should not pose REC to the project site.

 ICE BOX 7340 – LPST Site - Located at 4502 SEAWALL BLVD, Galveston, TX; approximately 0.379 miles (2002-ft) to the Southeast of the project site. - Located at a higher elevation. - This site is in Monitoring. - This site should not pose REC to the project site.

 ICE BOX 7340 GALVESTON – LPST Site - Located at 4502 SEAWALL BLVD, Galveston, TX; approximately 0.379 miles (2002-ft) to the Southeast of the project site. - Located at a higher elevation. - This site in final concurrence issued, case closed. - This site should not pose REC to the project site.

5.1.3 RCRA NonGen / NLR Site

Our review of agency records and database indicates that there are two (2) RCRA NonGen / NLR sites within ASTM Standard Search radius around the subject property.

Project No. 18-104E 13

 US DEPARTMENT OF COMMERCE NOAA – RCRA NonGen / NLR - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– RCRA NonGen / NLR - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.4 Formerly Used Defense Sites (FUDS)

Our review of agency records and database indicates that there are six (6) FUDS sites within ASTM Standard Search radius around the subject property.

 TEXAS A & M UNIVERSITY (CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.235 miles (1242-ft) to the South- Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 NATIONAL OCEANIC ATMOSPHERIC AGENCY (FT. CROC)– FUDS - No address, Galveston, TX; approximately 0.259 miles (1365-ft) to the South of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 FORT CROCKETT PRIVATE OWNERSHIPS)– FUDS - No address, Galveston, TX; approximately 0.339 miles (1791-ft) to the South- Southwest of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 CITY OF GALVESTON (CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.269 miles (1418-ft) to the Southwest of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

Project No. 18-104E 14

 GALVESTON COUNTY(CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.420 miles (2217-ft) to the South- Southeast of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 GALVESTON INDEPEN SCHOOL DISTRICT (CROCKETT)– FUDS - No address, Galveston, TX; approximately 0.430 miles (2269-ft) to the Southwest of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.5 Unexploded Ordnance Site (UXO)

Our review of agency records and database indicates that there is five (5) UXO sites within ASTM Standard Search radius around the subject property.

 POTENTIAL OE– UXO - No address, Galveston, TX; approximately 0.235 miles (1242-ft) to the South- Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 CROCKETT PARK– UXO - No address, Galveston, TX; approximately 0.269 miles (1418-ft) to the Southwest of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 ARTILLERY LAND AND SKEET RANGE AREAS– UXO - No address, Galveston, TX; approximately 0.420 miles (2217-ft) to the South- Southeast of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 ARTILLERY RANGES WATER AREA– UXO - No address, Galveston, TX; approximately 0.420 miles (2217-ft) to the South- Southeast of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

Project No. 18-104E 15

 BURNET SCHOOL– UXO - No address, Galveston, TX; approximately 0.430 miles (2269-ft) to the Southwest of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.6 TX Ind. Haz. Waste Site

Our review of agency records and database indicates that there are three (3) TX Ind. Haz Waste sites within ASTM Standard Search radius around the subject property.

 MARINE SCIENCE INSTITUTE– TX Ind. Haz Waste - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 US DEPARTMENT OF COMMERCE NOAA– TX Ind. Haz Waste - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– TX Ind. Haz Waste, TX NPDES - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.7 TX IHW CORR ACTION Site

Our review of agency records and database indicates that there is one (1) TX IHW CORR ACTION site within ASTM Standard Search radius around the subject property.

 TEXAS A&M UNIVERSITY AT GALVESTON– TX ENF, TX IHW CORR ACTION - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

Project No. 18-104E 16

5.1.8 NY MANIFEST site

Our review of agency records and database indicates that there is one (1) NY MANIFEST site within ASTM Standard Search radius around the subject property.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– NY MANIFEST - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.9 WI MANIFEST site

Our review of agency records and database indicates that there is one (1) WI MANIFEST site within ASTM Standard Search radius around the subject property.

 TEXAS A&M UNIVERSITY FORT CROCKETT CAMPUS– WI MANIFEST - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.10 MN MANIFEST site

Our review of agency records and database indicates that there are two (2) MN MANIFEST site within ASTM Standard Search radius around the subject property.

 US DEPT OF COMMERCE NATL MARINE– MN MANIFEST - Located at 4700 AVENUE U, Galveston, TX; approximately 0.200 miles (1056-ft) to the South-Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 TEXAS A & M UNIVERSITY– MN MANIFEST - Located at 5007 AVENUE U, Galveston, TX; approximately 0.204 miles (1076-ft) to the South of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.1.11 EDR Hist. Auto site

Our review of agency records and database indicates that there is two (2) EDR Hist. Auto sites within ASTM Standard Search radius around the subject property.

Project No. 18-104E 17

 GPY-GULF PRIDE FOR YOUTH INC– EDR Hist Auto - Located 4716 WOODROW AVENUE; Galveston, TX, approximately 0.099 miles (524-ft) to the Southeast of the project site. - Located at a higher elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

 GULF SPRAY PRESSURE WASHING– EDR Hist Auto - Located at 4806 AVENUE Q 1/2; Galveston, TX, approximately 0.041 miles (219-ft) to the North-Northeast of the project site. - Located at a lower elevation. - No violation was found at this site before. - This site should not pose REC to the project site.

5.2 Physical Setting Sources

5.2.1 Topography

Based on EDR physical setting document, the project site is approximately 12-ft above mean sea level. Topographic maps also indicate the project site has general topographic gradient towards North-northwest.

A copy of the EDR physical setting document which includes the project site can be found in Appendix D of this report.

5.2.2 Soils/Geology

The subject property generally lies on fine sand soils. A copy of the soil/geology map which includes the project site can be found in Appendix D of this report.

5.2.3 Surface Water Hydrology

Based on topographic gradient, it is our opinion that the project site slope towards southwest. Therefore, the flow of surface water on the project site generally flows towards North-northwest.

5.2.4 Hydrogeology

The two principal fresh water aquifers, the Chicot and the Evangeline, underlie the subject property. These groundwater sources are encountered throughout much of the Texas Gulf Coast, including Harris County.

The Chicot Aquifer is broken into two productive units, designated the Upper and Lower Chicot Aquifers. The Upper Chicot unit, comprised of the water-bearing sands in the Beaumont and Upper Lissie Formations, extends to a depth of approximately 250-feet below surface. The lower Chicot unit, comprised of the water-bearing sands in the lower Lissie and the Willis Sand of the Willis Formation, occurs within the approximate depth interval of 250-feet to 600-feet below ground surface. The aquifers are noted for their high sand-clay ration and abundance of water. Use of the Chicot Aquifers in the Houston area is limited, other than as a water source for domestic or light industrial water supply uses.

Project No. 18-104E 18

The Evangeline Aquifer, corresponding to the Goliad Sand of the Willis and Fleming Formations, represents the principal subsurface water supply source for the Galveston County and surrounding communities. The aquifer is noted for its abundance of good quality ground water and is considered one of the most profiled aquifers in the Texas Coastal Plain. Individual sand beds are characteristically tens of feet thick. Public water supply wells completed within interval of 600-feet to 2,400-feet below ground surface.

5.3 Oil and Gas Wells

Information about oil and gas wells is made public by the Railroad Commission of Texas. EDR researched the oil and gas wells identified on county base maps at the Railroad Commission of Texas.

Our review of records indicates the presence of on oil and gas wells within the ASTM Standards Search distance around the project site. However, no oil and gas well is present within the project site. A copy of the oil and gas well map which includes the project site can be found in Appendix D of this report.

5.4 Water Wells

EDR Local/Regional Water Agency records provide water well information to assist the environmental professional in assessing sources that may impact groundwater flow direction, and in forming an opinion about the impact of contaminant migration on nearby drinking water wells.

Our review of records indicates the presence of sixty-six (66) water wells within the ASTM Standards Search distance around the project site. However, no water wells are present within the project site. A copy of the water well map which includes the project site can be found in Appendix D of this report.

5.5 Flood Insurance Rate Map

Flood Insurance Rate Maps (FIRMs) are the official map of a community on which the Federal Emergency Management Agency (FEMA) has delineated both the special flood hazard areas and the flood risk premium zones applicable to the community. FIRMs are published, maintained, and distributed by the FEMA for the purpose of displaying areas subject to flooding.

Communities participating in the National Flood Insurance Program have maps of their community showing the different flood zones. The maps are updated from time to time based on topographical changes or population growth in a map coverage area.

Our review of EDR Floodplains Map indicates that the project site is inside the 500 years floodplain zone. Copy of Floodplains Map is presented in Appendix C.

5.6 Historical Use Information on the Project Site and Adjoining Properties

Historical information identifying the past site use was obtained from a variety of sources as detailed in Appendix E of this report and includes aerial photographs.

Project No. 18-104E 19

5.6.1 Historical Aerial Photographs

A review of historical aerial photography, presented in Appendix E-1, was made to evaluate present and past land use, structure, improvements, surface anomalies, and historical development of the project site and surrounding properties. Photographic coverage was obtained from national and local aerials survey firms for the following years:

Year Source Type Scale Remarks 1952 USDA B & W 1" = 500′ Commercial and residential development in the vicinity of the project site. 1969 ASCS B & W 1" = 500′ No special changes. 1977 USDA B & W 1" = 500′ No special changes. 1982 USGS COLOR 1" = 500′ No special changes. 1995 USGS/DOQQ COLOR 1" = 500′ No special changes. 2005 USDA/NAIP COLOR 1" = 500′ No special changes. 2010 USDA/NAIP COLOR 1" = 500′ No special changes. 2014 USDA/NAIP COLOR 1" = 500′ No special changes.

A copy of the EDR historical topographic maps can be found in Appendix E-2 of this report.

5.6.2 Historical Topographic Maps

Based on historical topographic maps of 1925, 1930, 1933, 1952, 1954, 1969, 1974, 1994, and 2013 provided by EDR, the project site is approximately 4- ft above mean sea level. Topographic maps indicate that the project alignment has general topographic gradients towards North-northwest.

Year Name Type Scale Remarks Houston B & W th 1925 Heights 1" = 2,112’ No 49 Street exist. Houston COLOR Gradual residential developments to the west of the 1930 1" = 2,112’ Heights project site. Houston 1933 Heights COLOR 1" = 2,112’ No special changes. Houston 1952 Heights COLOR 1" = 2,112’ No special changes. Gradual residential and commercial developments to 1954 Houston COLOR 1" = 2,112’ Heights the west of the project site. Houston 1969 Heights COLOR 1" = 2,112’ No special changes. Houston 1974 Heights COLOR 1" = 2,112’ No special changes. Houston 1994 Heights COLOR 1" = 2,112’ No special changes. Houston 2013 Heights COLOR 1" = 2,112’ No special changes.

A copy of the EDR historical topographic maps, which includes the project alignment, can be found in Appendix E-2 of this report.

Project No. 18-104E 20

5.6.3 Sanborn Fire Insurance Maps

A review of Sanborn Fire Insurance Maps, presented in Appendix E-3, was made to evaluate present and past land use, structure, improvement and historical development of the project alignment and surrounding properties. Three (3) Sanborn Fire Insurance Maps, in the years of 1947, 1950, and 1986 were obtained and reviewed.

Based on the review of the furnished Sanborn Fire Insurance Maps, a railroad track was present along the project alignments and surrounding areas were occupied with residences and commercial facilities.

5.6.4 Vapor Encroachment Screening Summary

A review of records on Vapor Encroachment Condition (VEC), presented in Appendix E-4, was made to evaluate vapor encroachment condition of the project site and surrounding properties.

Based on the screening results, the sources do not appear to pose potential environmental threats to the site. Therefore, VECs can be ruled out.

5.6.5 Historical Use Information Summary

We reviewed historical aerial photographs, historical topographic maps and Vapor Encroachment Screen map to obtain the existing and previous land use information regarding environmental concern. Our review of historical use information indicated that no significant environmental hazardous concern to the project site.

5.7 NEPA Search Description, Federal and State

Our review of agency records and database indicates that there are four (4) Threatened and Endangered Species sites within EDR NEPA Search radius around the subject property. However, no threatened and endangered species are located at the project site. NEPA Search Description of threatened and endangered species are provided in Appendix F.

Project No. 18-104E 21

6.0 SITE RECONNAISSANCE

6.1 Methodology and Limiting Conditions

Site reconnaissance was conducted on March 12, 2018 by Mr. Joseph Ali Ph. D., an environmental professional with Geotech Engineering and Testing (GET). Weather condition at the time of the site reconnaissance was sunny. The methodology used to perform site reconnaissance included walking through the subject property and observing the subject property. Photographs of pertinent site features identified during the site reconnaissance are included in Appendix B.

6.2 General Site Setting

We have performed a Phase I Environmental Site Assessment (ESA) for the proposed 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S½’ in City of Galveston, Texas. The project site is located at 49th Street from Avenue ‘P’ to Avenue ‘S½’ in City of Galveston, Texas. The length of drainage improvement alignment for the 49th Street is approximately 2,275-ft. The site vicinity map is shown on Plate A-1 in Appendix A.

6.3 Exterior and Interior Observations

6.3.1 Current Use(s) of the Property

Currently, the project site is asphalt pavement. In general, residential facilities are located in the vicinity of the subject site.

6.3.2 Hazardous Substances

There were no findings of Hazardous Substance being stored, transported, disposed of or generated on the project site.

6.3.3 Storage Tanks

No above ground or below ground fuel storage tanks were observed on the subject site.

6.3.4 PCBs

Electrical transformers present the most common potential source of PCBs or PCB-containing substance. In the past, it was common for transformers to use PCBs as heat dispersants in their lubricating oils. Therefore, transformers are the primary focus of site inspection for PCBs.

All transformers on or adjacent to the project site were observed for oil signs of deterioration. The ground below the transformers was inspected for only oily residue or stressed vegetation. No signs of PCB leakage were detected.

Project No. 18-104E 22

We have contacted Reliant Energy in the past regarding their policy of PCB control and they have stated that they are in compliance with the Toxic Substance Control Act (TSCA) which regulates PCBs. All transformers purchased by Reliant Energy were manufactured after July 1, 1979 are of the “non-PCB” type. However, those manufactured prior to this time are considered contaminated unless testing proves otherwise. Regulations do not require Reliant Energy to conduct testing. Testing and replacement of transformers are at request and expense of the customer.

Site photographs documenting the conditions and structures described in this chapter are included in Appendix B of this report.

6.3.5 Wells

No water well was observed within the project site during the site reconnaissance.

6.3.6 Septic Systems

During the site reconnaissance, no septic systems were observed on the project site during the site reconnaissance.

6.3.7 Drums/Containers

No drums/containers were observed on the project site during the site reconnaissance.

6.3.8 Odors

No significant odors were noted at the subject site.

7.0 INTERVIEWS

We conducted an interview regarding the environmental concerns along the project site as follows:

Summary Name Affiliation Role Mr. Patrick 49th street House owner Mr. Richard 49th street House owner Ms. Samantha McDonalds Cashier Ms. Leona McDonalds Customer Mr. Walter 49th street House owner

GET identified no evidence of RECs based on the information obtained from the interview. Record of communication can be found in the interview section in Appendix G of this report.

Project No. 18-104E 23

8.0 FINDINGS

We have performed a Phase I Environmental Site Assessment (ESA) for the proposed 49th Street paving improvement from Avenue ‘P’ to Avenue ‘S’½ in the City of Galveston, Texas. The project site is located at 49th Street from Avenue ‘P’ to Avenue ‘S’½ in the City of Galveston, Texas. The length of paving improvement alignment for the 49th Street is approximately 2,275-ft. This study was conducted in general accordance with Phase I ESA Process ASTM E 1527-13. This Phase I ESA has revealed no evidence of recognized environmental conditions (REC), controlled recognized environmental condition (CREC) and historical recognized environmental conditions (HREC) in connection with the project site.

9.0 CONCLUSIONS AND OPINIONS

Based on our site reconnaissance and review of governmental agency database records, it is our opinion that the proposed 49th Street paving improvement from Avenue ‘P’ to Avenue ‘S½’ in City of Galveston, Texas has a low risk of recognized environmental conditions (RECs). Therefore, it is our opinion that a Phase II ESA is not recommended.

10.0 STANDARD OF CARE

The recommendations described herein were conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the environmental professional practicing contemporaneously under similar conditions in the locality of the project. No other warranty or guarantee, expressed or implied, is made other than the work was performed in a proper and workmanlike manner.

11.0 DEFINITIONS

Hazardous Substance – a substance defined as a hazard substance pursuant to CERCLA 42 USC 9601 (14), as interpreted by EPA regulations and the courts: “(A) any substance designated pursuant to section 132. (b) (2) (A) of Title 33, (B) any element, compound, mixture, solution, or substance designated pursuant to section 9602 of the title, (C) any hazardous waste having the characteristics identified under or listed pursuant to section 3001 of the Solid Waste Disposal Act (42 USC 6921) (but not including any waste the regulation of which under the Solid Waste Disposal Act (42 USC 6901 et seq.) Has been suspended by Act of Congress), (D) any toxic pollutant listed under section 1317 (a) of Title 33, (E) any hazardous air pollutant listed under section 112 of the Clean Air Act (42 USC 7412), and (F) any imminently hazardous chemical substance or mixture with respect to which the Administrator (of EPA) has taken action pursuant to section 2606 of Title 15. The term does not include petroleum, including crude oil or any fraction thereof which is not otherwise specifically listed or designated as a hazardous substance under subparagraphs (A) through (F) of this paragraph, and the term does not include natural gas, natural gas liquids, liquefied natural gas, or synthetic gas usable for fuel (or mixtures of natural gas and such synthetic gas)”.

Petroleum Products – those substance included within the meaning of the petroleum exclusion to CERCLA, 42 USC 9601 (14), as interpreted by courts and EPA, that is: petroleum, including crude oil or any fraction thereof which is not otherwise specifically listed or designated as a hazardous substance under Subparagraphs (A) through (F) of 42 USC 9601 (14), natural gas, natural gas liquids, liquefied natural gas, and synthetic gas usable for fuel (or mixtures of natural gas and such synthetic gas). (the word fraction refers to certain distillates of crude oil, including gasoline, kerosene, diesel oil, jet fuels, and fuel oil, pursuant to the Standard Definition of Petroleum Statistics, American Petroleum Institute.

Project No. 18-104E 24

APPENDIX A

Site Maps

GEOTECH ENGINEERING AND TESTING

PROJECT Alignment

SITE VICINITY MAP NORTH

PROJECT: Phase I Environmental Site Assessment for 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S½’ Montgomery County, Texas

SCALE: NOT TO SCALE DATE: MARCH 2018 PROJECT NO.: 18-104E

GEOTECH ENGINEERING AND TESTING PLATE A-1

Alamo Park Homestyle Mexican

Project Alignment

Academy Sports Outdoors

SITE PLAN NORTH

PROJECT: Phase I Environmental Site Assessment for 49th Street Paving Improvement from Avenue ‘P’ to Avenue ‘S½’ Montgomery County, Texas

SCALE: NOT TO SCALE DATE: MARCH 2018 PROJECT NO.: 18-104E

GEOTECH ENGINEERING AND TESTING PLATE A-2

APPENDIX B

Project Alignment Photographs

GEOTECH ENGINEERING AND TESTING

Picture #1 A View of the North of the Project Site

Picture #2 A View of the East of the Project Site

GEOTECH ENGINEERING AND TESTING

Picture #3 A View of the South of the Project Site

Picture #4 A View of the West of the Project Site

GEOTECH ENGINEERING AND TESTING

APPENDIX C

Regulatory Records Documentation

(CD)

GEOTECH ENGINEERING AND TESTING 49th Street 49th Street Galveston, TX 77551

Inquiry Number: 5191468.2s February 16, 2018

The EDR Radius Map™ Report with GeoCheck®

6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com

FORM-LBC-GXH TABLE OF CONTENTS

SECTION PAGE

Executive Summary ES1 Overview Map 2 Detail Map 3 Map Findings Summary 4 Map Findings 8 Orphan Summary 211 Government Records Searched/Data Currency Tracking GR-1

GEOCHECK ADDENDUM

Physical Setting Source Addendum A-1 Physical Setting Source Summary A-2 Physical Setting SSURGO Soil Map A-5 Physical Setting Source Map A-8 Physical Setting Source Map Findings A-10 Physical Setting Source Records Searched PSGR-1

Thank you for your business. Please contact EDR at 1-800-352-0050 with any questions or comments.

Disclaimer - Copyright and Trademark Notice This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE, ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLY LIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings, environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I Environmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for any property. Additionally, the information provided in this Report is not to be construed as legal advice. Copyright 2018 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission. EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners.

TC5191468.2s Page 1 EXECUTIVE SUMMARY

A search of available environmental records was conducted by Environmental Data Resources, Inc (EDR). The report was designed to assist parties seeking to meet the search requirements of EPA’s Standards and Practices for All Appropriate Inquiries (40 CFR Part 312), the ASTM Standard Practice for Environmental Site Assessments (E 1527-13), the ASTM Standard Practice for Environmental Site Assessments for Forestland or Rural Property (E 2247-16), the ASTM Standard Practice for Limited Environmental Due Diligence: Transaction Screen Process (E 1528-14) or custom requirements developed for the evaluation of environmental risk associated with a parcel of real estate.

TARGET PROPERTY INFORMATION

ADDRESS

49TH STREET GALVESTON, TX 77551

COORDINATES

Latitude (North): 29.2813000 - 29˚ 16’ 52.68’’ Longitude (West): 94.8180770 - 94˚ 49’ 5.07’’ Universal Tranverse Mercator: Zone 15 UTM X (Meters): 323381.9 UTM Y (Meters): 3240345.5 Elevation: 12 ft. above sea level

USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY

Target Property Map: 5935319 GALVESTON, TX Version Date: 2013

AERIAL PHOTOGRAPHY IN THIS REPORT

Portions of Photo from: 20141014 Source: USDA

TC5191468.2s EXECUTIVE SUMMARY 1 MAPPED SITES SUMMARY

Target Property Address: 49TH STREET GALVESTON, TX 77551

Click on Map ID to see full detail.

MAP RELATIVE DIST (ft. & mi.) ID SITE NAME ADDRESS DATABASE ACRONYMS ELEVATION DIRECTION 1 GULF SPRAY PRESSURE 4806 AVENUE Q 1/2 EDR Hist Auto Lower 219, 0.041, NNE 2 GPY-GULF PRIDE FOR Y 4716 WOODROW AVE EDR Hist Auto Higher 524, 0.099, SE A3 US DEPARTMENT OF COM 4700 AVENUE U RCRA NonGen / NLR Higher 1056, 0.200, SSE A4 MARINE SCIENCE INSTI 4700 AVENUE U TX Ind. Haz Waste Higher 1056, 0.200, SSE A5 US DEPARTMENT OF COM 4700 AVENUE U TX Ind. Haz Waste Higher 1056, 0.200, SSE A6 US DEPT OF COMMERCE 4700 AVE U GALVESTON MN MANIFEST Higher 1056, 0.200, SSE A7 UNIV OF HOUSTON MARI 4700 AVE U RCRA-SQG, FINDS, ECHO Higher 1056, 0.200, SSE B8 TEXAS A&M UNIVERSITY 5007 AVENUE U RCRA NonGen / NLR, WI MANIFEST, NY MANIFEST Higher 1076, 0.204, South B9 TEXAS A & M UNIVERSI 5007 AVENUE U MN MANIFEST Higher 1076, 0.204, South B10 TEXAS A&M UNIVERSITY 5007 AVENUE U TX Ind. Haz Waste, TX NPDES Higher 1076, 0.204, South B11 TEXAS A&M UNIVERSITY 5007 AVENUE U TX ENF, TX IHW CORR ACTION Higher 1076, 0.204, South C12 TEXAS A & M UNIVERSI FUDS Higher 1242, 0.235, SSE C13 POTENTIAL OE UXO Higher 1242, 0.235, SSE B14 NATIONAL OCEANIC ATM FUDS Higher 1365, 0.259, South D15 CITY OF GALVESTON (C FUDS Lower 1418, 0.269, SW D16 CROCKETT PARK UXO Lower 1418, 0.269, SW D17 STEP N GO 2427 53RD ST TX LPST, TX UST, TX Financial Assurance Lower 1464, 0.277, SW 18 ONE STOP MART 1902 45TH ST TX LPST, TX UST, TX Financial Assurance Lower 1546, 0.293, NE D19 GALVESTON FEDERAL AR 5301 AVENUE S SEMS-ARCHIVE Lower 1671, 0.316, SW 20 FORT CROCKETT PRIVAT FUDS Higher 1791, 0.339, SSW E21 ICE BOX 7340 4502 SEAWALL BLVD TX LPST Lower 2002, 0.379, SE E22 ICE BOX 7340 GALVEST 4502 SEAWALL BLVD TX LPST, TX UST, TX Financial Assurance, TX GCC Lower 2002, 0.379, SE F23 GALVESTON COUNTY(CRO FUDS Lower 2217, 0.420, SSE F24 ARTILLERY LAND AND S UXO Lower 2217, 0.420, SSE F25 ARTILLERY RANGES WAT UXO Lower 2217, 0.420, SSE G26 BURNET SCHOOL UXO Lower 2269, 0.430, SW G27 GALVESTON INDEPEN SC FUDS Lower 2269, 0.430, SW

5191468.2s Page 2 EXECUTIVE SUMMARY

TARGET PROPERTY SEARCH RESULTS

The target property was not listed in any of the databases searched by EDR.

DATABASES WITH NO MAPPED SITES No mapped sites were found in EDR’s search of available ("reasonably ascertainable ") government records either on the target property or within the search radius around the target property for the following databases:

STANDARD ENVIRONMENTAL RECORDS

Federal NPL site list NPL National Priority List Proposed NPL Proposed National Priority List Sites NPL LIENS Federal Superfund Liens

Federal Delisted NPL site list Delisted NPL National Priority List Deletions

Federal CERCLIS list FEDERAL FACILITY Federal Facility Site Information listing SEMS Superfund Enterprise Management System

Federal RCRA CORRACTS facilities list CORRACTS Corrective Action Report

Federal RCRA non-CORRACTS TSD facilities list RCRA-TSDF RCRA - Treatment, Storage and Disposal

Federal RCRA generators list RCRA-LQG RCRA - Large Quantity Generators RCRA-CESQG RCRA - Conditionally Exempt Small Quantity Generator

Federal institutional controls / engineering controls registries LUCIS Land Use Control Information System US ENG CONTROLS Engineering Controls Sites List US INST CONTROL Sites with Institutional Controls

Federal ERNS list ERNS Emergency Response Notification System

TC5191468.2s EXECUTIVE SUMMARY 3 EXECUTIVE SUMMARY

State- and tribal - equivalent NPL TX SHWS State Superfund Registry

State and tribal landfill and/or solid waste disposal site lists TX SWF/LF Permitted Solid Waste Facilities TX CLI Closed Landfill Inventory TX WasteMgt Commercial Hazardous & Solid Waste Management Facilities

State and tribal leaking storage tank lists INDIAN LUST Leaking Underground Storage Tanks on Indian Land

State and tribal registered storage tank lists FEMA UST Underground Storage Tank Listing TX AST Petroleum Storage Tank Database INDIAN UST Underground Storage Tanks on Indian Land

State and tribal institutional control / engineering control registries TX AUL Sites with Controls

State and tribal voluntary cleanup sites TX VCP Voluntary Cleanup Program Database INDIAN VCP Voluntary Cleanup Priority Listing

State and tribal Brownfields sites TX BROWNFIELDS Brownfields Site Assessments

ADDITIONAL ENVIRONMENTAL RECORDS

Local Brownfield lists US BROWNFIELDS A Listing of Brownfields Sites

Local Lists of Landfill / Solid Waste Disposal Sites TX SWRCY Recycling Facility Listing INDIAN ODI Report on the Status of Open Dumps on Indian Lands ODI Open Dump Inventory DEBRIS REGION 9 Torres Martinez Reservation Illegal Dump Site Locations IHS OPEN DUMPS Open Dumps on Indian Land

Local Lists of Hazardous waste / Contaminated Sites US HIST CDL Delisted National Clandestine Laboratory Register TX PRIORITYCLEANERS Dry Cleaner Remediation Program Prioritization List TX DEL SHWS Deleted Superfund Registry Sites US CDL National Clandestine Laboratory Register

TC5191468.2s EXECUTIVE SUMMARY 4 EXECUTIVE SUMMARY

Local Land Records TX HIST LIENS Environmental Liens Listing TX LIENS Environmental Liens Listing LIENS 2 CERCLA Lien Information

Records of Emergency Release Reports HMIRS Hazardous Materials Information Reporting System TX SPILLS Spills Database TX SPILLS 90 SPILLS 90 data from FirstSearch TX SPILLS 80 SPILLS 80 data from FirstSearch

Other Ascertainable Records DOD Department of Defense Sites SCRD DRYCLEANERS State Coalition for Remediation of Drycleaners Listing US FIN ASSUR Financial Assurance Information EPA WATCH LIST EPA WATCH LIST 2020 COR ACTION 2020 Corrective Action Program List TSCA Toxic Substances Control Act TRIS Toxic Chemical Release Inventory System SSTS Section 7 Tracking Systems ROD Records Of Decision RMP Risk Management Plans RAATS RCRA Administrative Action Tracking System PRP Potentially Responsible Parties PADS PCB Activity Database System ICIS Integrated Compliance Information System FTTS FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) MLTS Material Licensing Tracking System COAL ASH DOE Steam-Electric Plant Operation Data COAL ASH EPA Coal Combustion Residues Surface Impoundments List PCB TRANSFORMER PCB Transformer Registration Database RADINFO Radiation Information Database HIST FTTS FIFRA/TSCA Tracking System Administrative Case Listing DOT OPS Incident and Accident Data CONSENT Superfund (CERCLA) Consent Decrees INDIAN RESERV Indian Reservations FUSRAP Formerly Utilized Sites Remedial Action Program UMTRA Uranium Mill Tailings Sites LEAD SMELTERS Lead Smelter Sites US AIRS Aerometric Information Retrieval System Facility Subsystem US MINES Mines Master Index File ABANDONED MINES Abandoned Mines DOCKET HWC Hazardous Waste Compliance Docket Listing FUELS PROGRAM EPA Fuels Program Registered Listing TX AIRS Current Emission Inventory Data TX APAR Affected Property Assessment Report Site Listing TX ASBESTOS ASBESTOS TX COAL ASH Coal Ash Disposal Sites TX DRYCLEANERS Drycleaner Registration Database Listing TX ED AQUIF Edwards Aquifer Permits

TC5191468.2s EXECUTIVE SUMMARY 5 EXECUTIVE SUMMARY

TX IOP Innocent Owner/Operator Program TX MSD Municipal Settings Designations Database TX RWS Radioactive Waste Sites TX TIER 2 Tier 2 Chemical Inventory Reports TX UIC Underground Injection Wells Database Listing

EDR HIGH RISK HISTORICAL RECORDS

EDR Exclusive Records EDR MGP EDR Proprietary Manufactured Gas Plants EDR Hist Cleaner EDR Exclusive Historical Cleaners

EDR RECOVERED GOVERNMENT ARCHIVES

Exclusive Recovered Govt. Archives TX RGA HWS Recovered Government Archive State Hazardous Waste Facilities List TX RGA LF Recovered Government Archive Solid Waste Facilities List

SURROUNDING SITES: SEARCH RESULTS Surrounding sites were identified in the following databases.

Elevations have been determined from the USGS Digital Elevation Model and should be evaluated on a relative (not an absolute) basis. Relative elevation information between sites of close proximity should be field verified. Sites with an elevation equal to or higher than the target property have been differentiated below from sites with an elevation lower than the target property. Page numbers and map identification numbers refer to the EDR Radius Map report where detailed data on individual sites can be reviewed.

Sites listed in bold italics are in multiple databases.

Unmappable (orphan) sites are not considered in the foregoing analysis. STANDARD ENVIRONMENTAL RECORDS

Federal CERCLIS NFRAP site list SEMS-ARCHIVE: SEMS-ARCHIVE (Superfund Enterprise Management System Archive) tracks sites that have no further interest under the Federal Superfund Program based on available information. The list was formerly known as the CERCLIS-NFRAP, renamed to SEMS ARCHIVE by the EPA in 2015. EPA may perform a minimal level of assessment work at a site while it is archived if site conditions change and/or new information becomes available. Archived sites have been removed and archived from the inventory of SEMS sites. Archived status indicates that, to the best of EPA’s knowledge, assessment at a site has been completed and that EPA has determined no further steps will be taken to list the site on the National Priorities List (NPL), unless information indicates this decision was not appropriate or other considerations require a recommendation for listing at a later time. The decision does not necessarily mean that there is no hazard associated with a given site; it only means that. based upon available information, the location is not judged to be potential NPL site.

A review of the SEMS-ARCHIVE list, as provided by EDR, and dated 12/11/2017 has revealed that there

TC5191468.2s EXECUTIVE SUMMARY 6 EXECUTIVE SUMMARY

is 1 SEMS-ARCHIVE site within approximately 0.5 miles of the target property.

______Lower Elevation ______Address Direction______/ Distance _____Map ID _____Page GALVESTON FEDERAL AR 5301 AVENUE S SW 1/4 - 1/2 (0.316 mi.) D19 170

Federal RCRA generators list RCRA-SQG: RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Small quantity generators (SQGs) generate between 100 kg and 1,000 kg of hazardous waste per month.

A review of the RCRA-SQG list, as provided by EDR, and dated 12/11/2017 has revealed that there is 1 RCRA-SQG site within approximately 0.25 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page UNIV OF HOUSTON MARI 4700 AVE U SSE 1/8 - 1/4 (0.200 mi.) A7 17

State and tribal leaking storage tank lists TX LPST: The Leaking Petroleum Storage Tank Incident Reports contain an inventory of reported leaking petroleum storage tank incidents. The data come from the Texas Commission on Environmental Quality’s Leaking Petroleum Storage Tank Database.

A review of the TX LPST list, as provided by EDR, and dated 12/06/2017 has revealed that there are 4 TX LPST sites within approximately 0.5 miles of the target property.

______Lower Elevation ______Address Direction______/ Distance _____Map ID _____Page STEP N GO 2427 53RD ST SW 1/4 - 1/2 (0.277 mi.) D17 123 Status Code: FINAL CONCURRENCE ISSUED, CASE CLOSED LPST Id: 116381 CA Status: 6A - FINAL CONCURRENCE ISSUED Facility ID: 0035242 ONE STOP MART 1902 45TH ST NE 1/4 - 1/2 (0.293 mi.) 18 149 Status Code: FINAL CONCURRENCE ISSUED, CASE CLOSED LPST Id: 104867 CA Status: 6A - FINAL CONCURRENCE ISSUED Facility ID: 0035240 ICE BOX 7340 4502 SEAWALL BLVD SE 1/4 - 1/2 (0.379 mi.) E21 172 LPST Id: 119301 CA Status: 3 - MONITORING ICE BOX 7340 GALVEST 4502 SEAWALL BLVD SE 1/4 - 1/2 (0.379 mi.) E22 172 Status Code: FINAL CONCURRENCE ISSUED, CASE CLOSED LPST Id: 118895 LPST Id: 105501 CA Status: 6A - FINAL CONCURRENCE ISSUED Facility ID: 0069000 Facility ID: 0026681

TC5191468.2s EXECUTIVE SUMMARY 7 EXECUTIVE SUMMARY

ADDITIONAL ENVIRONMENTAL RECORDS

Other Ascertainable Records RCRA NonGen / NLR: RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do not presently generate hazardous waste.

A review of the RCRA NonGen / NLR list, as provided by EDR, and dated 12/11/2017 has revealed that there are 2 RCRA NonGen / NLR sites within approximately 0.25 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page US DEPARTMENT OF COM 4700 AVENUE U SSE 1/8 - 1/4 (0.200 mi.) A3 8 TEXAS A&M UNIVERSITY 5007 AVENUE U S 1/8 - 1/4 (0.204 mi.) B8 19

FUDS: The Listing includes locations of Formerly Used Defense Sites Properties where the US Army Corps Of Engineers is actively working or will take necessary cleanup actions.

A review of the FUDS list, as provided by EDR, and dated 01/31/2015 has revealed that there are 6 FUDS sites within approximately 1 mile of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page TEXAS A & M UNIVERSI SSE 1/8 - 1/4 (0.235 mi.) C12 120 NATIONAL OCEANIC ATM S 1/4 - 1/2 (0.259 mi.) B14 121 FORT CROCKETT PRIVAT SSW 1/4 - 1/2 (0.339 mi.) 20 171

______Lower Elevation ______Address Direction______/ Distance _____Map ID _____Page CITY OF GALVESTON (C SW 1/4 - 1/2 (0.269 mi.) D15 122 GALVESTON COUNTY(CRO SSE 1/4 - 1/2 (0.420 mi.) F23 208 GALVESTON INDEPEN SC SW 1/4 - 1/2 (0.430 mi.) G27 210

UXO: A listing of unexploded ordnance site locations

A review of the UXO list, as provided by EDR, and dated 09/30/2016 has revealed that there are 5 UXO sites within approximately 1 mile of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page POTENTIAL OE SSE 1/8 - 1/4 (0.235 mi.) C13 120

______Lower Elevation ______Address Direction______/ Distance _____Map ID _____Page CROCKETT PARK SW 1/4 - 1/2 (0.269 mi.) D16 122 ARTILLERY LAND AND S SSE 1/4 - 1/2 (0.420 mi.) F24 209 ARTILLERY RANGES WAT SSE 1/4 - 1/2 (0.420 mi.) F25 209 BURNET SCHOOL SW 1/4 - 1/2 (0.430 mi.) G26 210

TC5191468.2s EXECUTIVE SUMMARY 8 EXECUTIVE SUMMARY

TX Ind. Haz Waste: The Industrial and Hazardous Waste Database contains summary reports by waste handlers, generators and shippers in Texas.

A review of the TX Ind. Haz Waste list, as provided by EDR, and dated 12/05/2017 has revealed that there are 3 TX Ind. Haz Waste sites within approximately 0.25 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page MARINE SCIENCE INSTI 4700 AVENUE U SSE 1/8 - 1/4 (0.200 mi.) A4 9 Registration Number: 71398 US DEPARTMENT OF COM 4700 AVENUE U SSE 1/8 - 1/4 (0.200 mi.) A5 11 Registration Number: 67849 TEXAS A&M UNIVERSITY 5007 AVENUE U S 1/8 - 1/4 (0.204 mi.) B10 52 Registration Number: 75406

TX IHW CORR ACTION: Industrial hazardous waste facilities with corrective actions.

A review of the TX IHW CORR ACTION list, as provided by EDR, and dated 01/02/2018 has revealed that there is 1 TX IHW CORR ACTION site within approximately 0.25 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page TEXAS A&M UNIVERSITY 5007 AVENUE U S 1/8 - 1/4 (0.204 mi.) B11 63 RN NUM: RN102339561 Program Id: 75406 Status: INACTIVE

NY MANIFEST: Manifest is a document that lists and tracks hazardous waste from the generator through transporters to a TSD facility.

A review of the NY MANIFEST list, as provided by EDR, and dated 10/01/2017 has revealed that there is 1 NY MANIFEST site within approximately 0.25 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page TEXAS A&M UNIVERSITY 5007 AVENUE U S 1/8 - 1/4 (0.204 mi.) B8 19 EPA ID: TXD988026357

WI MANIFEST: Hazardous waste manifest information.

A review of the WI MANIFEST list, as provided by EDR, and dated 12/31/2016 has revealed that there is 1 WI MANIFEST site within approximately 0.25 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page TEXAS A&M UNIVERSITY 5007 AVENUE U S 1/8 - 1/4 (0.204 mi.) B8 19 EPA ID: TXD988026357

TC5191468.2s EXECUTIVE SUMMARY 9 EXECUTIVE SUMMARY

MN MANIFEST: Hazardous waste manifest data.

A review of the MN MANIFEST list, as provided by EDR, and dated 06/30/2016 has revealed that there are 2 MN MANIFEST sites within approximately 0.25 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page US DEPT OF COMMERCE 4700 AVE U GALVESTON SSE 1/8 - 1/4 (0.200 mi.) A6 16 TEXAS A & M UNIVERSI 5007 AVENUE U S 1/8 - 1/4 (0.204 mi.) B9 50

EDR HIGH RISK HISTORICAL RECORDS

EDR Exclusive Records EDR Hist Auto: EDR has searched selected national collections of business directories and has collected listings of potential gas station/filling station/service station sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include gas station/filling station/service station establishments. The categories reviewed included, but were not limited to gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches.

A review of the EDR Hist Auto list, as provided by EDR, has revealed that there are 2 EDR Hist Auto sites within approximately 0.125 miles of the target property.

______Equal/Higher Elevation ______Address Direction______/ Distance _____Map ID _____Page GPY-GULF PRIDE FOR Y 4716 WOODROW AVE SE 0 - 1/8 (0.099 mi.) 2 8

______Lower Elevation ______Address Direction______/ Distance _____Map ID _____Page GULF SPRAY PRESSURE 4806 AVENUE Q 1/2 NNE 0 - 1/8 (0.041 mi.) 1 8

TC5191468.2s EXECUTIVE SUMMARY 10 EXECUTIVE SUMMARY

There were no unmapped sites in this report.

TC5191468.2s EXECUTIVE SUMMARY 11 N

a t u r a V l k 1 3 8 G a s

EDR Inc. EDR Inc. MAP FINDINGS SUMMARY

Search Distance Target Total Database (Miles) Property < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted

STANDARD ENVIRONMENTAL RECORDS

Federal NPL site list NPL 1.000 0 0 0 0 NR 0 Proposed NPL 1.000 0 0 0 0 NR 0 NPL LIENS TP NR NR NR NR NR 0 Federal Delisted NPL site list Delisted NPL 1.000 0 0 0 0 NR 0 Federal CERCLIS list FEDERAL FACILITY 0.500 0 0 0 NR NR 0 SEMS 0.500 0 0 0 NR NR 0 Federal CERCLIS NFRAP site list SEMS-ARCHIVE 0.500 0 0 1 NR NR 1 Federal RCRA CORRACTS facilities list CORRACTS 1.000 0 0 0 0 NR 0 Federal RCRA non-CORRACTS TSD facilities list RCRA-TSDF 0.500 0 0 0 NR NR 0 Federal RCRA generators list RCRA-LQG 0.250 0 0 NR NR NR 0 RCRA-SQG 0.250 0 1 NR NR NR 1 RCRA-CESQG 0.250 0 0 NR NR NR 0 Federal institutional controls / engineering controls registries LUCIS 0.500 0 0 0 NR NR 0 US ENG CONTROLS 0.500 0 0 0 NR NR 0 US INST CONTROL 0.500 0 0 0 NR NR 0 Federal ERNS list ERNS TP NR NR NR NR NR 0 State- and tribal - equivalent NPL TX SHWS 1.000 0 0 0 0 NR 0 State and tribal landfill and/or solid waste disposal site lists TX SWF/LF 0.500 0 0 0 NR NR 0 TX CLI 0.500 0 0 0 NR NR 0 TX WasteMgt TP NR NR NR NR NR 0 State and tribal leaking storage tank lists INDIAN LUST 0.500 0 0 0 NR NR 0 TX LPST 0.500 0 0 4 NR NR 4

TC5191468.2s Page 4 MAP FINDINGS SUMMARY

Search Distance Target Total Database (Miles) Property < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted

State and tribal registered storage tank lists FEMA UST 0.250 0 0 NR NR NR 0 TX UST 0.250 0 0 NR NR NR 0 TX AST 0.250 0 0 NR NR NR 0 INDIAN UST 0.250 0 0 NR NR NR 0 State and tribal institutional control / engineering control registries TX AUL 0.500 0 0 0 NR NR 0 State and tribal voluntary cleanup sites TX VCP 0.500 0 0 0 NR NR 0 INDIAN VCP 0.500 0 0 0 NR NR 0 State and tribal Brownfields sites TX BROWNFIELDS 0.500 0 0 0 NR NR 0

ADDITIONAL ENVIRONMENTAL RECORDS

Local Brownfield lists US BROWNFIELDS 0.500 0 0 0 NR NR 0 Local Lists of Landfill / Solid Waste Disposal Sites TX SWRCY 0.500 0 0 0 NR NR 0 INDIAN ODI 0.500 0 0 0 NR NR 0 ODI 0.500 0 0 0 NR NR 0 DEBRIS REGION 9 0.500 0 0 0 NR NR 0 IHS OPEN DUMPS 0.500 0 0 0 NR NR 0 Local Lists of Hazardous waste / Contaminated Sites US HIST CDL TP NR NR NR NR NR 0 TX PRIORITYCLEANERS 0.500 0 0 0 NR NR 0 TX DEL SHWS 1.000 0 0 0 0 NR 0 US CDL TP NR NR NR NR NR 0 Local Land Records TX HIST LIENS TP NR NR NR NR NR 0 TX LIENS TP NR NR NR NR NR 0 LIENS 2 TP NR NR NR NR NR 0 Records of Emergency Release Reports HMIRS TP NR NR NR NR NR 0 TX SPILLS TP NR NR NR NR NR 0 TX SPILLS 90 TP NR NR NR NR NR 0 TX SPILLS 80 TP NR NR NR NR NR 0 Other Ascertainable Records RCRA NonGen / NLR 0.250 0 2 NR NR NR 2

TC5191468.2s Page 5 MAP FINDINGS SUMMARY

Search Distance Target Total Database (Miles) Property < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted

FUDS 1.000 0 1 5 0 NR 6 DOD 1.000 0 0 0 0 NR 0 SCRD DRYCLEANERS 0.500 0 0 0 NR NR 0 US FIN ASSUR TP NR NR NR NR NR 0 EPA WATCH LIST TP NR NR NR NR NR 0 2020 COR ACTION 0.250 0 0 NR NR NR 0 TSCA TP NR NR NR NR NR 0 TRIS TP NR NR NR NR NR 0 SSTS TP NR NR NR NR NR 0 ROD 1.000 0 0 0 0 NR 0 RMP TP NR NR NR NR NR 0 RAATS TP NR NR NR NR NR 0 PRP TP NR NR NR NR NR 0 PADS TP NR NR NR NR NR 0 ICIS TP NR NR NR NR NR 0 FTTS TP NR NR NR NR NR 0 MLTS TP NR NR NR NR NR 0 COAL ASH DOE TP NR NR NR NR NR 0 COAL ASH EPA 0.500 0 0 0 NR NR 0 PCB TRANSFORMER TP NR NR NR NR NR 0 RADINFO TP NR NR NR NR NR 0 HIST FTTS TP NR NR NR NR NR 0 DOT OPS TP NR NR NR NR NR 0 CONSENT 1.000 0 0 0 0 NR 0 INDIAN RESERV 1.000 0 0 0 0 NR 0 FUSRAP 1.000 0 0 0 0 NR 0 UMTRA 0.500 0 0 0 NR NR 0 LEAD SMELTERS TP NR NR NR NR NR 0 US AIRS TP NR NR NR NR NR 0 US MINES 0.250 0 0 NR NR NR 0 ABANDONED MINES 0.250 0 0 NR NR NR 0 FINDS TP NR NR NR NR NR 0 DOCKET HWC TP NR NR NR NR NR 0 UXO 1.000 0 1 4 0 NR 5 ECHO TP NR NR NR NR NR 0 FUELS PROGRAM 0.250 0 0 NR NR NR 0 TX AIRS TP NR NR NR NR NR 0 TX APAR TP NR NR NR NR NR 0 TX ASBESTOS TP NR NR NR NR NR 0 TX COAL ASH 0.500 0 0 0 NR NR 0 TX DRYCLEANERS 0.250 0 0 NR NR NR 0 TX ED AQUIF TP NR NR NR NR NR 0 TX ENF TP NR NR NR NR NR 0 TX Financial Assurance TP NR NR NR NR NR 0 TX GCC TP NR NR NR NR NR 0 TX Ind. Haz Waste 0.250 0 3 NR NR NR 3 TX IHW CORR ACTION 0.250 0 1 NR NR NR 1 TX IOP TP NR NR NR NR NR 0 NY MANIFEST 0.250 0 1 NR NR NR 1 WI MANIFEST 0.250 0 1 NR NR NR 1 MN MANIFEST 0.250 0 2 NR NR NR 2

TC5191468.2s Page 6 MAP FINDINGS SUMMARY

Search Distance Target Total Database (Miles) Property < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted

TX MSD 0.500 0 0 0 NR NR 0 TX NPDES TP NR NR NR NR NR 0 TX RWS TP NR NR NR NR NR 0 TX TIER 2 TP NR NR NR NR NR 0 TX UIC TP NR NR NR NR NR 0

EDR HIGH RISK HISTORICAL RECORDS

EDR Exclusive Records EDR MGP 1.000 0 0 0 0 NR 0 EDR Hist Auto 0.125 2 NR NR NR NR 2 EDR Hist Cleaner 0.125 0 NR NR NR NR 0

EDR RECOVERED GOVERNMENT ARCHIVES

Exclusive Recovered Govt. Archives TX RGA HWS TP NR NR NR NR NR 0 TX RGA LF TP NR NR NR NR NR 0

- Totals -- 0 2 13 14 0 0 29

NOTES: TP = Target Property NR = Not Requested at this Search Distance Sites may be listed in more than one database

TC5191468.2s Page 7

APPENDIX D

Physical Setting Information

GEOTECH ENGINEERING AND TESTING GEOCHECK - PHYSICAL SETTING SOURCE ADDENDUM

TARGET PROPERTY ADDRESS

49TH STREET 49TH STREET GALVESTON, TX 77551

TARGET PROPERTY COORDINATES

Latitude (North): 29.2813 - 29˚ 16’ 52.68’’ Longitude (West): 94.818077 - 94˚ 49’ 5.08’’ Universal Tranverse Mercator: Zone 15 UTM X (Meters): 323381.9 UTM Y (Meters): 3240345.5 Elevation: 12 ft. above sea level

USGS TOPOGRAPHIC MAP

Target Property Map: 5935319 GALVESTON, TX Version Date: 2013

EDR’s GeoCheck Physical Setting Source Addendum is provided to assist the environmental professional in forming an opinion about the impact of potential contaminant migration.

Assessment of the impact of contaminant migration generally has two principal investigative components:

1. Groundwater flow direction, and 2. Groundwater flow velocity.

Groundwater flow direction may be impacted by surface topography, hydrology, hydrogeology, characteristics of the soil, and nearby wells. Groundwater flow velocity is generally impacted by the nature of the geologic strata.

TC5191468.2s Page A-1 GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY

GROUNDWATER FLOW DIRECTION INFORMATION Groundwater flow direction for a particular site is best determined by a qualified environmental professional using site-specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on other sources of information, such as surface topographic information, hydrologic information, hydrogeologic data collected on nearby properties, and regional groundwater flow information (from deep aquifers).

TOPOGRAPHIC INFORMATION Surface topography may be indicative of the direction of surficial groundwater flow. This information can be used to assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should contamination exist on the target property, what downgradient sites might be impacted.

TARGET PROPERTY TOPOGRAPHY General Topographic Gradient: General NNW

SURROUNDING TOPOGRAPHY: ELEVATION PROFILES 14 14 13 13 12 12 11 10 9 8 7 7 6 6 6 1 0 0 0 Elevation (ft) Elevation

North South TP 14 14 13 13 12 12 12 12 12 11 11 10 6 6 3 Elevation (ft) Elevation 0 0 0 0

West East TP 0 1/2 1 Miles Target Property Elevation: 12 ft.

Source: Topography has been determined from the USGS 7.5’ Digital Elevation Model and should be evaluated on a relative (not an absolute) basis. Relative elevation information between sites of close proximity should be field verified.

TC5191468.2s Page A-2 GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY

HYDROLOGIC INFORMATION Surface water can act as a hydrologic barrier to groundwater flow. Such hydrologic information can be used to assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should contamination exist on the target property, what downgradient sites might be impacted.

Refer to the Physical Setting Source Map following this summary for hydrologic information (major waterways and bodies of water).

FEMA FLOOD ZONE

Flood Plain Panel at Target Property FEMA Source Type

4854690022E FEMA FIRM Flood data

Additional Panels in search area: FEMA Source Type

4854690026E FEMA FIRM Flood data 4854690024E FEMA FIRM Flood data 4854690028E FEMA FIRM Flood data

NATIONAL WETLAND INVENTORY NWI Electronic NWI Quad at Target Property Data Coverage GALVESTON YES - refer to the Overview Map and Detail Map

HYDROGEOLOGIC INFORMATION Hydrogeologic information obtained by installation of wells on a specific site can often be an indicator of groundwater flow direction in the immediate area. Such hydrogeologic information can be used to assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should contamination exist on the target property, what downgradient sites might be impacted.

Site-Specific Hydrogeological Data*: Search Radius: 1.25 miles Status: Not found

AQUIFLOW

Search Radius: 1.000 Mile.

EDR has developed the AQUIFLOW Information System to provide data on the general direction of groundwater flow at specific points. EDR has reviewed reports submitted by environmental professionals to regulatory authorities at select sites and has extracted the date of the report, groundwater flow direction as determined hydrogeologically, and the depth to water table.

LOCATION GENERAL DIRECTION MAP ID FROM TP GROUNDWATER FLOW Not Reported

* ©1996 Site−specific hydrogeological data gathered by CERCLIS Alerts, Inc., Bainbridge Island, WA. All rights reserved. All of the information and opinions presented are those of the cited EPA report(s), which were completed under a Comprehensive Environmental Response Compensation and Liability Information System (CERCLIS) investigation. TC5191468.2s Page A-3 GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY

GROUNDWATER FLOW VELOCITY INFORMATION Groundwater flow velocity information for a particular site is best determined by a qualified environmental professional using site specific geologic and soil strata data. If such data are not reasonably ascertainable, it may be necessary to rely on other sources of information, including geologic age identification, rock stratigraphic unit and soil characteristics data collected on nearby properties and regional soil information. In general, contaminant plumes move more quickly through sandy-gravelly types of soils than silty-clayey types of soils.

GEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY Geologic information can be used by the environmental professional in forming an opinion about the relative speed at which contaminant migration may be occurring.

ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION

Era: Cenozoic Category: Stratifed Sequence System: Quaternary Series: Holocene Code: Qh (decoded above as Era, System & Series)

Geologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - a digital representation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS - 11 (1994).

TC5191468.2s Page A-4 1

0 1/16 1/8 1/4 Miles

EDR Inc. GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY

DOMINANT SOIL COMPOSITION IN GENERAL AREA OF TARGET PROPERTY

The U.S. Department of Agriculture’s (USDA) Soil Conservation Service (SCS) leads the National Cooperative Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns in a landscape. The following information is based on Soil Conservation Service SSURGO data.

Soil Map ID: 1

Soil Component Name: Galveston

Soil Surface Texture: fine sand

Hydrologic Group: Class D - Very slow infiltration rates. Soils are clayey, have a high water table, or are shallow to an impervious layer.

Soil Drainage Class: Hydric Status: Partially hydric

Corrosion Potential - Uncoated Steel: High

Depth to Bedrock Min: > 0 inches

Depth to Watertable Min: > 8 inches

Soil Layer Information Saturated Boundary Classification hydraulic Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil conductivity Soil Reaction micro m/sec (pH)

1 0 inches 20 inches fine sand Granular Not reported Max: 141 Max: 8.4 materials (35 Min: 42 Min: 5.6 pct. or less passing No. 200), Silty, or Clayey Gravel and Sand. 2 20 inches 59 inches fine sand Granular Not reported Max: 141 Max: 8.4 materials (35 Min: 42 Min: 5.6 pct. or less passing No. 200), Silty, or Clayey Gravel and Sand.

LOCAL / REGIONAL WATER AGENCY RECORDS

EDR Local/Regional Water Agency records provide water well information to assist the environmental professional in assessing sources that may impact ground water flow direction, and in forming an opinion about the impact of contaminant migration on nearby drinking water wells.

TC5191468.2s Page A-6 GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY

WELL SEARCH DISTANCE INFORMATION

DATABASE SEARCH DISTANCE (miles) Federal USGS 1.000 Federal FRDS PWS Nearest PWS within 1 mile State Database 1.000

FEDERAL USGS WELL INFORMATION LOCATION MAP ID WELL ID FROM TP No Wells Found

FEDERAL FRDS PUBLIC WATER SUPPLY SYSTEM INFORMATION LOCATION MAP ID WELL ID FROM TP No PWS System Found

Note: PWS System location is not always the same as well location.

STATE DATABASE WELL INFORMATION LOCATION MAP ID WELL ID FROM TP A1 TXPLU3000085380 1/4 - 1/2 Mile SW A2 TXMON3000296518 1/4 - 1/2 Mile SW B3 TXPLU3000003391 1/4 - 1/2 Mile ESE B4 TXPLU3000003392 1/4 - 1/2 Mile ESE 5 TXGH40000008042 1/2 - 1 Mile SSW C6 TXMON3000294566 1/2 - 1 Mile SE C7 TXMON3000294565 1/2 - 1 Mile SE C8 TXMON3000294564 1/2 - 1 Mile SE D9 TXPLU3000085379 1/2 - 1 Mile NW D10 TXMON3000296517 1/2 - 1 Mile NW C11 TXMON3000288491 1/2 - 1 Mile SE C12 TXMON3000288487 1/2 - 1 Mile SE C13 TXMON3000288485 1/2 - 1 Mile SE C14 TXMON3000344064 1/2 - 1 Mile SE C15 TXMON3000344065 1/2 - 1 Mile SE C16 TXMON3000344066 1/2 - 1 Mile SE C17 TXPLU3000086777 1/2 - 1 Mile SE C18 TXMON3000340342 1/2 - 1 Mile SE C19 TXMON3000344063 1/2 - 1 Mile SE 20 TXGH40000011431 1/2 - 1 Mile South 21 TXPLU3000032694 1/2 - 1 Mile West E22 TXPLU3000046482 1/2 - 1 Mile NNE E23 TXMON3000135853 1/2 - 1 Mile NNE E24 TXDOL2000061420 1/2 - 1 Mile NNE F25 TXPLU3000009959 1/2 - 1 Mile NNW

TC5191468.2s Page A-7 GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY

STATE DATABASE WELL INFORMATION LOCATION MAP ID WELL ID FROM TP F26 TXPLU3000009998 1/2 - 1 Mile NNW G27 TXPLU3000005062 1/2 - 1 Mile WSW H28 TXPLU3000087517 1/2 - 1 Mile North H29 TXPLU3000087518 1/2 - 1 Mile North H30 TXPLU3000087516 1/2 - 1 Mile North H31 TXPLU3000087514 1/2 - 1 Mile North H32 TXPLU3000087515 1/2 - 1 Mile North H33 TXMON3000307920 1/2 - 1 Mile North H34 TXMON3000308025 1/2 - 1 Mile North H35 TXMON3000307918 1/2 - 1 Mile North H36 TXMON3000307919 1/2 - 1 Mile North I37 TXPLU3000025579 1/2 - 1 Mile WSW I38 TXPLU3000025572 1/2 - 1 Mile WSW G39 TXMON3000066448 1/2 - 1 Mile WSW G40 TXMON3000066449 1/2 - 1 Mile WSW G41 TXMON3000066451 1/2 - 1 Mile WSW G42 TXDOL2000061841 1/2 - 1 Mile WSW G43 TXDOL2000061848 1/2 - 1 Mile WSW G44 TXDOL2000061849 1/2 - 1 Mile WSW I45 TXPLU3000025580 1/2 - 1 Mile WSW I46 TXPLU3000025578 1/2 - 1 Mile WSW I47 TXPLU3000025571 1/2 - 1 Mile WSW I48 TXPLU3000025573 1/2 - 1 Mile WSW H49 TXMON3000031562 1/2 - 1 Mile North H50 TXMON3000031563 1/2 - 1 Mile North H51 TXDOL2000062240 1/2 - 1 Mile North H52 TXDOL2000062241 1/2 - 1 Mile North I53 TXPLU3000025577 1/2 - 1 Mile WSW I54 TXPLU3000025570 1/2 - 1 Mile WSW J55 TXMON3000066441 1/2 - 1 Mile NNE J56 TXDOL2000061854 1/2 - 1 Mile NNE I57 TXPLU3000025576 1/2 - 1 Mile WSW I58 TXPLU3000025581 1/2 - 1 Mile WSW I59 TXPLU3000025574 1/2 - 1 Mile WSW I60 TXPLU3000025575 1/2 - 1 Mile WSW I61 TXPLU3000025582 1/2 - 1 Mile WSW K62 TXPLU3000019772 1/2 - 1 Mile WSW K63 TXPLU3000019774 1/2 - 1 Mile WSW K64 TXPLU3000019776 1/2 - 1 Mile WSW K65 TXPLU3000019775 1/2 - 1 Mile WSW K66 TXPLU3000019773 1/2 - 1 Mile WSW

TC5191468.2s Page A-8 TX

EDR Inc.

APPENDIX E

Historical Records Documentation

GEOTECH ENGINEERING AND TESTING

APPENDIX E-1

Historical Aerial Photographs

GEOTECH ENGINEERING AND TESTING 49th Street 49th Street Galveston, TX 77551

Inquiry Number: 5191468.9 February 20, 2018

The EDR Aerial Photo Decade Package

6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com EDR Aerial Photo Decade Package 02/20/18

Site Name: Client Name:

49th Street GeoTech Engineering & Testing 17407 US Highway 59 Galveston, TX 77551 Houston, TX 77396 EDR Inquiry # 5191468.9 Contact: Joseph Ali

Environmental Data Resources, Inc. (EDR) Aerial Photo Decade Package is a screening tool designed to assist environmental professionals in evaluating potential liability on a target property resulting from past activities. EDR’s professional researchers provide digitally reproduced historical aerial photographs, and when available, provide one photo per decade.

Search Results: Year Scale Details Source 2014 1"=500' Flight Year: 2014 USDA/NAIP 2010 1"=500' Flight Year: 2010 USDA/NAIP 2005 1"=500' Flight Year: 2005 USDA/NAIP 1995 1"=500' Acquisition Date: January 19, 1995 USGS/DOQQ 1982 1"=500' Flight Date: January 26, 1982 USGS 1977 1"=500' Flight Date: February 05, 1977 USDA 1969 1"=500' Flight Date: January 01, 1969 ASCS 1952 1"=500' Flight Date: March 27, 1952 USDA

When delivered electronically by EDR, the aerial photo images included with this report are for ONE TIME USE ONLY. Further reproduction of these aerial photo images is prohibited without permission from EDR. For more information contact your EDR Account Executive.

Copyright 2018 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission. EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners.

5191468 - 9 page 2 5191468.9

2014

= 500' 5191468.9

2010

= 500' 5191468.9

2005

= 500' 5191468.9

1995

= 500' 5191468.9

1982

= 500' 5191468.9

1977

= 500' 5191468.9

1969

= 500' 5191468.9

1952

= 500'

APPENDIX E-2

Historical Topographic Map

GEOTECH ENGINEERING AND TESTING 49th Street 49th Street Galveston, TX 77551

Inquiry Number: 5191468.4 February 16, 2018

EDR Historical Topo Map Report with QuadMatch™

6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com EDR Historical Topo Map Report 02/16/18

Site Name: Client Name: 49th Street GeoTech Engineering & Testing 17407 US Highway 59 Galveston, TX 77551 Houston, TX 77396 EDR Inquiry # 5191468.4 Contact: Joseph Ali

EDR Topographic Map Library has been searched by EDR and maps covering the target property location as provided by GeoTech Engineering & Testing were identified for the years listed below. EDR’s Historical Topo Map Report is designed to assist professionals in evaluating potential liability on a target property resulting from past activities. EDRs Historical Topo Map Report includes a search of a collection of public and private color historical topographic maps, dating back to the late 1800s.

Search Results: Coordinates:

P.O.# NA Latitude: 29.2813 29° 16' 53" North Project: Phase 1 ESA 49th Street Longitude: -94.818077 -94° 49' 5" West UTM Zone: Zone 15 North UTM X Meters: 323385.42 UTM Y Meters: 3240522.70 Elevation: 12.00' above sea level Maps Provided:

2013 1925 1994 1974 1969 1954 1952 1933 1930

5191468 - 4 page 2 Topo Sheet Key This EDR Topo Map Report is based upon the following USGS topographic map sheets.

2013 Source Sheets

Galveston 2013 7.5-minute, 24000

1994 Source Sheets

Galveston 1994 7.5-minute, 24000 Aerial Photo Revised 1987

1974 Source Sheets

Galveston 1974 7.5-minute, 24000 Aerial Photo Revised 1974

1969 Source Sheets

Galveston 1969 7.5-minute, 24000 Aerial Photo Revised 1969

5191468 - 4 page 3 Topo Sheet Key This EDR Topo Map Report is based upon the following USGS topographic map sheets.

1954 Source Sheets

Galveston 1954 7.5-minute, 24000 Aerial Photo Revised 1952

1952 Source Sheets

Galveston 1952 7.5-minute, 24000 Aerial Photo Revised 1942

1933 Source Sheets

Galveston 1933 7.5-minute, 31680

1930 Source Sheets

Galveston 1930 7.5-minute, 24000

5191468 - 4 page Topo Sheet Key This EDR Topo Map Report is based upon the following USGS topographic map sheets.

1925 Source Sheets

GALVESTON 1925 30-minute, 125000

5191468 - 4 page 5 Historical Topo Map 2013

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 2013, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 6 Historical Topo Map 1994

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 1994, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 7 Historical Topo Map 1974

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 1974, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 8 Historical Topo Map 1969

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 1969, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 9 Historical Topo Map 1954

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 1954, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 10 Historical Topo Map 1952

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 1952, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 11 Historical Topo Map 1933

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 1933, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 12 Historical Topo Map 1930

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, Galveston, 1930, 7.5-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 13 Historical Topo Map 1925

This report includes information from the following map sheet(s). 0 Miles 0.25 0.5 1 1.5

NW N NE TP, GALVESTON, 1925, 30-minute SITE NAME: 49th Street ADDRESS: Galveston, TX 77551 W E CLIENT: GeoTech Engineering & Testing

SW S SE 5191468 - 4 page 14

APPENDIX E-3

Historical Sanborn Fire Insurance Map

GEOTECH ENGINEERING AND TESTING 49th Street 49th Street Galveston, TX 77551

Inquiry Number: 5191468.3 February 16, 2018

Certified Sanborn® Map Report

6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com Certified Sanborn® Map Report 02/16/18 Site Name: Client Name: GeoTech Engineering & Testing 49th Street 17407 US Highway 59 Galveston, TX 77551 Houston, TX 77396 EDR Inquiry # 5191468.3 Contact: Joseph Ali

The Sanborn Library has been searched by EDR and maps covering the target property location as provided by GeoTech Engineering & Testing were identified for the years listed below. The Sanborn Library is the largest, most complete collection of fire insurance maps. The collection includes maps from Sanborn, Bromley, Perris & Browne, Hopkins, Barlow, and others. Only Environmental Data Resources Inc. (EDR) is authorized to grant rights for commercial reproduction of maps by the Sanborn Library LLC, the copyright holder for the collection. Results can be authenticated by visiting www.edrnet.com/sanborn.

The Sanborn Library is continually enhanced with newly identified map archives. This report accesses all maps in the collection as of the day this report was generated. Certified Sanborn Results:

Certification # 4E7C-4F82-8608 PO # NA Project Phase 1 ESA 49th Street

Maps Provided: Sanborn® Library search results 1986 Certification #: 4E7C-4F82-8608 1950 The Sanborn Library includes more than 1.2 million 1947 fire insurance maps from Sanborn, Bromley, Perris & Browne, Hopkins, Barlow and others which track historical property usage in approximately 12,000 American cities and towns. Collections searched:

Library of Congress University Publications of America

EDR Private Collection

The Sanborn Library LLC Since 1866™

Limited Permission To Make Copies

GeoTech Engineering & Testing (the client) is permitted to make up to FIVE photocopies of this Sanborn Map transmittal and each fire insurance map accompanying this report solely for the limited use of its customer. No one other than the client is authorized to make copies. Upon request made directly to an EDR Account Executive, the client may be permitted to make a limited number of additional photocopies. This permission is conditioned upon compliance by the client, its customer and their agents with EDR's copyright policy; a copy of which is available upon request.

5191468 - 3 page 2 Sanborn Sheet Key This Certified Sanborn Map Report is based upon the following Sanborn Fire Insurance map sheets.

1986 Source Sheets

Volume 2, Sheet 111 1986

1950 Source Sheets

Volume 2, Sheet 111 1950

1947 Source Sheets

Volume 2, Sheet 111 1947

5191468 - 3 page Certified Sanborn® Map 1986 4E7C-4F82-8608

Site Name: 49th Street

Address: 49th Street

City, ST, ZIP: Galveston, TX 77551

Client: GeoTech Engineering & Testing

EDR Inquiry: 5191468.3 Order Date: 02/16/2018 Certification # 4E7C-4F82-8608

5191468 - 3 page 4 Certified Sanborn® Map 1950 4E7C-4F82-8608

Site Name: 49th Street

Address: 49th Street

City, ST, ZIP: Galveston, TX 77551

Client: GeoTech Engineering & Testing

EDR Inquiry: 5191468.3 Order Date: 02/16/2018 Certification # 4E7C-4F82-8608

5191468 - 3 page 5 Certified Sanborn® Map 1947 4E7C-4F82-8608

Site Name: 49th Street

Address: 49th Street

City, ST, ZIP: Galveston, TX 77551

Client: GeoTech Engineering & Testing

EDR Inquiry: 5191468.3 Order Date: 02/16/2018 Certification # 4E7C-4F82-8608

5191468 - 3 page 6

APPENDIX E-4

Vapor Encroachment Screen

GEOTECH ENGINEERING AND TESTING

49th Street 49th Street Galveston, TX 77551 Inquiry Number: 5191468.2s February 19, 2018

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6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com TABLE OF CONTENTS

SECTION PAGE

Executive Summary ES1 Primary Map 2 Secondary Map 3 Map Findings 4 Record Sources and Currency GR-1

Thank you for your business. Please contact EDR at 1-800-352-0050 with any questions or comments.

Disclaimer - Copyright and Trademark Notice The EDR Vapor Encroachment Worksheet enables EDR's customers to make certain online modifications that effects maps, text and calculations contained in this Report. As a result, maps, text and calculations contained in this Report may have been so modified. EDR has not taken any action to verify any such modifications, and this report and the findings set forth herein must be read in light of this fact. Environmental Data Resources shall not be responsible for any customer's decision to include or not include in any final report any records determined to be within the relevant minimum search distances. This report contains information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANYSUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE, ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OR DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES.ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLY LIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this report "AS IS". Any analyses, estimates, ratings, or risk codes provided in this report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I Environmental Site Assessment performed by an environmental professional can produce information regarding the environmental risk for any property. Additionally, the information provided in this Report is not to be construed as legal advice. Copyright 2018 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission. EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners.

TC Page 1 EXECUTIVE SUMMARY

A search of available environmental records was conducted by EDR. The report was designed to assist parties seeking to meet the search requirements of the ASTM Standard Practice for Assessment of Vapor Encroachment into Structures on Property Involved in Real Estate Transactions (E 2600). 1/10 > 1/10

STANDARD ENVIRONMENTAL RECORDS Default Area of Concern (Miles)* property Federal NPL site list 1.0 0 0 0 Federal Delisted NPL site list 1.0 0 0 0 Federal CERCLIS list 0.5 0 0 0 Federal CERCLIS NFRAP site list 0.5 0 0 0 Federal RCRA CORRACTS facilities list 1.0 0 0 0 Federal RCRA non-CORRACTS TSD facilities list 0.5 0 0 0 Federal RCRA generators list 0.25 0 0 0 Federal institutional controls / engineering controls registries 0.5 0 0 0 Federal ERNS list property 0 - -

State- and tribal - equivalent NPL 1.0 0 0 0 State- and tribal - equivalent CERCLIS not searched --- State and tribal landfill and/or solid waste disposal site lists 0.5 0 0 0 State and tribal leaking storage tank lists 0.5 0 0 0 State and tribal registered storage tank lists 0.25 0 0 0 State and tribal institutional control / engineering control registries 0.5 0 0 0 State and tribal voluntary cleanup sites 0.5 0 0 0 State and tribal Brownfields sites 0.5 0 0 0

ADDITIONAL ENVIRONMENTAL RECORDS Local Brownfield lists 0.5 0 0 0 Local Lists of Landfill / Solid Waste Disposal Sites 0.5 0 0 0 Local Lists of Hazardous waste / Contaminated Sites 1.0 0 0 0 Local Lists of Registered Storage Tanks 0.25 0 0 0 Local Land Records property 0 - - Records of Emergency Release Reports property 0 - - Other Ascertainable Records 1.0 0 0 6

EDR Exclusive Records 1.0 0 2 2 Exclusive Recovered Govt. Archives property 0 - -

*The Default Area of Concern may be adjusted by the environmental professional using experience and professional judgement. Each category may include several databases, and each database may have a different distance. A list of individual databases is provided at the back of this report.

TC EXECUTIVE SUMMARY 1 EXECUTIVE SUMMARY

TARGET PROPERTY INFORMATION

ADDRESS

49TH STREET 49TH STREET GALVESTON, TX 77551

COORDINATES

Latitude (North): 29.2813 - 29° 16′ 52.678528″ Longitude (West): 94.818077 - 94° 49′ 5.0775146″ Elevation: 12 ft. above sea level

SEARCH RESULTS

Unmappable (orphan) sites are not considered in the foregoing analysis.

Name Address Dist/Dir Map ID Page GULF SPRAY PRESSURE WASHING 4806 AVENUE Q 1/2 <1/10 NNE ◆ 1 6 EDR Hist Auto

GPY-GULF PRIDE FOR YOUTH INC 4716 WOODROW AVE <1/10 SE ▲ 2 6 EDR Hist Auto

TEXAS A & M UNIVERSITY (CROCKETT) Not Reported 1/10 - 1/3 SSE ▲ B3 6 FUDS

POTENTIAL OE Not Reported 1/10 - 1/3 SSE ▲ B4 7 UXO

NATIONAL OCEANIC ATMOSPHERIC AGENCY (FT. Not Reported 1/10 - 1/3 S ▲ 5 8 CROC) FUDS

TC EXECUTIVE SUMMARY 2

BeginOC−start−Wetlands−BeginOC−startBeginOC−start−−BeginOC−end−BeginOC−end−−BeginOC−end−BeginOC−end−WetlandsBeginOC−start−Water−BeginOC−startBeginOC−end−BeginOC−end−WaterBeginOC−start−PowerBeginOC−end−BeginOC−end−PowerBeginOC−start−FloodBeginOC−end−BeginOC−end−FloodBeginOC−start−Streets−BeginOC−startBeginOC−end−BeginOC−end−StreetsBeginOC−start−Railroads−BeginOC−startBeginOC−end−BeginOC−end−RailroadsBeginOC−start−TargetBeginOC−end−BeginOC−end−TargetBeginOC−start−FederalBeginOC−end−BeginOC−end−FederalBeginOC−start−IndianBeginOC−end−BeginOC−end−IndianBeginOC−start−NationalBeginOC−end−BeginOC−end−NationalBeginOC−start−SearchBeginOC−end−BeginOC−end−Search StateNational500100 YearZones−BeginOC−start TransmissionReservationsPropertyRings−BeginOC−start Wetlands−BeginOC−startDOD Priority WetlandsZone−BeginOC−start Records−BeginOC−start Location−BeginOC−start StateNational500100List BIA−BeginOC−start LinesInventory−BeginOC−start YearZones Records−BeginOC−startTransmissionReservationsPropertyRings WetlandsDOD Priority WetlandsZone/ Oil Records Location &List Gas BIALinesInventory Records Pipelines−BeginOC−start / Oil & Gas Pipelines

B B

. Natural Gas

1 3 8 kV

BeginOC−start−Wetlands−BeginOC−startBeginOC−start−−BeginOC−end−BeginOC−end−−BeginOC−end−BeginOC−end−WetlandsBeginOC−start−Water−BeginOC−startBeginOC−end−BeginOC−end−WaterBeginOC−start−PowerBeginOC−end−BeginOC−end−PowerBeginOC−start−FloodBeginOC−end−BeginOC−end−FloodBeginOC−start−Streets−BeginOC−startBeginOC−end−BeginOC−end−StreetsBeginOC−start−Railroads−BeginOC−startBeginOC−end−BeginOC−end−RailroadsBeginOC−start−ContourBeginOC−end−BeginOC−end−ContourBeginOC−start−TargetBeginOC−end−BeginOC−end−TargetBeginOC−start−FederalBeginOC−end−BeginOC−end−FederalBeginOC−start−IndianBeginOC−end−BeginOC−end−IndianBeginOC−start−NationalBeginOC−end−BeginOC−end−NationalBeginOC−start−SearchBeginOC−end−BeginOC−end−Search StateNational500100 YearZones−BeginOC−start TransmissionReservationsPropertyRings−BeginOC−start Wetlands−BeginOC−startDOD Lines−BeginOC−startPriority WetlandsZone−BeginOC−start Records−BeginOC−start Location−BeginOC−start StateNational500100List BIA−BeginOC−start LinesInventory−BeginOC−start YearZones Records−BeginOC−startTransmissionReservationsPropertyRings WetlandsDOD LinesPriority WetlandsZone/ Oil Records Location &List Gas BIALinesInventory Records Pipelines−BeginOC−start / Oil & Gas Pipelines BeginOC−start−Contour Lines−OffBeginOC−start

A B B

. MAP FINDINGS

LEGEND

FACILITY NAME FACILITY ADDRESS, CITY, ST, ZIP EDR SITE ID NUMBER ASTM 2600 Record Sources found in this report. Each Direction Distance Range (Distance feet / miles) database searched has been assigned to one or more ◆ MAP ID# categories. For detailed information about categorization, Relative Elevation Feet Above Sea Level see the section of the report Records Searched and Currency. Worksheet:

Comments: Comments may be added on the online Vapor Encroachment Worksheet.

DATABASE ACRONYM: Applicable categories (A hoverbox with database description).

GULF SPRAY PRESSURE WASHING 4806 AVENUE Q 1/2, GALVESTON, TX, 77551 1021495004

NNE <1/10 (219 ft. / 0.041 mi.) EDR Exclusive Records ◆ 1 1 ft. Lower Elevation 11 ft. Above Sea Level

Worksheet:

EDR Hist Auto: EDR Exclusive Records

Year: Name: / Type: 2010: GULF SPRAY PRESSURE WASHING / Gasoline Service Stations, NEC

GPY-GULF PRIDE FOR YOUTH INC 4716 WOODROW AVE, GALVESTON, TX, 77551 1021902054

SE <1/10 (524 ft. / 0.099 mi.) EDR Exclusive Records ▲ 2 1 ft. Higher Elevation 13 ft. Above Sea Level

Worksheet:

EDR Hist Auto: EDR Exclusive Records

Year: Name: / Type: 2011: GPY-GULF PRIDE FOR YOUTH INC / Gasoline Service Stations, NEC 2012: GPY-GULF PRIDE FOR YOUTH INC / Gasoline Service Stations, NEC 2013: GPY-GULF PRIDE FOR YOUTH INC / Gasoline Service Stations, NEC 2014: GPY-GULF PRIDE FOR YOUTH INC / Gasoline Service Stations, NEC

TEXAS A & M UNIVERSITY (CROCKETT) Not Reported, GALVESTON, TX, 1010309855

TC Page 6 MAP FINDINGS

SSE 1/10 - 1/3 (1242 ft. / 0.235 mi.) Other Ascertainable Records ▲ B3 2 ft. Higher Elevation 14 ft. Above Sea Level

Worksheet:

FUDS: Other Ascertainable Records

EPA Region: 06 Congressional District: 14 FUDS Number: K06TX1002 State: TX Facility Name: TEXAS A & M UNIVERSITY (CROCKETT) Fiscal Year: 2013 City: GALVESTON Federal Facility ID: TX9799F8079 Telephone: 817-886-1312 INST ID: 58364 County: GALVESTON RAB: Not Reported **CORPS_DIST**: Fort Worth District (SWF) NPL Status: Not Listed CTC: 7 Current Owner: State Government Future Prog: Not Reported Description: 3.0374 acres Current Program: Not Reported History: Site was used as part of the former Fort Crockett, which was a coastal harbor and defense installation during WWI and WWII. The site was used for troop barracks, latrines, and a gas meter house, all of which is now owned and used by Texas A&M. This area was not used as a traget area, maneuver area, bombing range or impact area. The site is situated away from where the coastal batteries were. There is no evidence of ordnance and explosives at this site. Latitude Degree: 29 Latitude Minute: 17 Latitude Second: 30 Latitude Direction: N Longitude Degree: -94 Longitude Minute: 49 Longitude Second: 57 Longitude Direction: E

POTENTIAL OE Not Reported, GALVESTON, TX, 1018150519

SSE 1/10 - 1/3 (1242 ft. / 0.235 mi.) Other Ascertainable Records ▲ B4 2 ft. Higher Elevation 14 ft. Above Sea Level

Worksheet:

UXO: Other Ascertainable Records

DoD Component: FUDS Installation Name: FT MC COMB

TC Page 7 MAP FINDINGS

POTENTIAL OE, Not Reported, GALVESTON, TX (Continued)

Facility Address 2: Not Reported Site ID: 01OEW Site Type: Medium/Large Caliber Latitude: 30.065001 Longitude: -89.804398

DoD Component: FUDS Installation Name: TEXAS A & M UNIVERSITY (CROCKETT) Facility Address 2: Not Reported Site ID: 01OEW Site Type: Medium/Large Caliber Latitude: 29.275000 Longitude: -94.815833

NATIONAL OCEANIC ATMOSPHERIC AGENCY (FT. CROC) Not Reported, GALVESTON, TX, 1009484715

S 1/10 - 1/3 (1365 ft. / 0.259 mi.) Other Ascertainable Records ▲ 5 2 ft. Higher Elevation 14 ft. Above Sea Level

Worksheet:

FUDS: Other Ascertainable Records

EPA Region: 06 Congressional District: 14 FUDS Number: K06TX1004 State: TX Facility Name: NATIONAL OCEANIC ATMOSPHERIC AGENCY (FT. CROC) Fiscal Year: 2013 City: GALVESTON Federal Facility ID: TX9799F8083 Telephone: 817-886-1312 INST ID: 58360 County: GALVESTON RAB: Not Reported **CORPS_DIST**: Fort Worth District (SWF) NPL Status: Not Listed CTC: 7 Current Owner: Other Federal Government Future Prog: Not Reported Description: 8.28 ACRES Current Program: Not Reported History: The former Fort Crockett Administration Buildings were located in Galveston, Texas. The site was used for barracks for housing of Prisoners-of-war during WWII. Other Government improvements included an administrative building, latrines, mess hall, post exchange, service club, and bowling alley. The size of the proerty is 8.28 acres. The Deaprtment of the Army on 29 March 1954 discontinue the site for use. Latitude Degree: 29 Latitude Minute: 16 Latitude Second: 28 Latitude Direction: N

TC Page 8 MAP FINDINGS

NATIONAL OCEANIC ATMOSPHERIC AGENCY (FT. CROC), Not Reported, GALVESTON, TX (Continued)

Longitude Degree: -94 Longitude Minute: 49 Longitude Second: 1 Longitude Direction: E

TC Page 9 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING

St Acronym Full Name Government Agency Gov Date Arvl. Date Active Date

ENVIRONMENTAL RECORDS

Federal NPL site list US NPL National Priority List EPA 12/11/2017 12/22/2017 01/05/2018 US Proposed NPL Proposed National Priority List Sites EPA 12/11/2017 12/22/2017 01/05/2018 US NPL LIENS Federal Superfund Liens EPA 10/15/1991 02/02/1994 03/30/1994

Federal CERCLIS list US SEMS Superfund Enterprise Management System EPA 12/11/2017 12/22/2017 01/12/2018

Federal RCRA CORRACTS facilities list US CORRACTS Corrective Action Report EPA 12/11/2017 12/26/2017 02/09/2018

Federal RCRA TSD facilities list US RCRA-TSDF RCRA - Treatment, Storage and Disposal Environmental Protection Agency 12/11/2017 12/26/2017 02/09/2018

Federal RCRA generators list US RCRA-LQG RCRA - Large Quantity Generators Environmental Protection Agency 12/11/2017 12/26/2017 02/09/2018 US RCRA-SQG RCRA - Small Quantity Generators Environmental Protection Agency 12/11/2017 12/26/2017 02/09/2018 US RCRA-CESQG RCRA - Conditionally Exempt Small Quantity Generators Environmental Protection Agency 12/11/2017 12/26/2017 02/09/2018

Federal institutional controls / engineering controls registries US LUCIS Land Use Control Information System Department of the Navy 05/22/2017 06/13/2017 09/15/2017 US US ENG CONTROLS Engineering Controls Sites List Environmental Protection Agency 11/13/2017 11/27/2017 02/09/2018 US US INST CONTROL Sites with Institutional Controls Environmental Protection Agency 11/13/2017 11/27/2017 02/09/2018

Federal ERNS list US ERNS Emergency Response Notification System National Response Center, United States Coast 09/18/2017 09/21/2017 10/13/2017

State and tribal - equivalent NPL TX SHWS State Superfund Registry Texas Commission on Environmental Quality 09/30/2017 10/13/2017 12/11/2017

State and tribal landfill / solid waste disposal TX SWF/LF Permitted Solid Waste Facilities Texas Commission on Environmental Quality 10/27/2017 11/01/2017 12/11/2017 TX CLI Closed Landfill Inventory Texas Commission on Environmental Quality 08/30/1999 09/28/2000 10/30/2000 TX CAPCOG LI Capitol Area Landfill Inventory Capital Area Council of Governments 01/06/2017 01/10/2017 03/15/2017 TX NCTCOG LI North Central Landfill Inventory North Central Texas Council of Governments 01/03/2018 01/05/2018 02/13/2018 TX H-GAC CLI Houston-Galveston Closed Landfill Inventory Houston-Galveston Area Council 10/31/2017 11/01/2017 12/11/2017 TX WASTEMGT Commercial Hazardous & Solid Waste Management Facilities Texas Commission on Environmental Quality 07/07/2016 10/07/2016 12/07/2016

TC5191468.2s Page GR-1 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING

St Acronym Full Name Government Agency Gov Date Arvl. Date Active Date

State and tribal leaking storage tank lists US INDIAN LUST R5 Leaking Underground Storage Tanks on Indian Land EPA, Region 5 04/26/2017 07/27/2017 10/13/2017 US INDIAN LUST R1 Leaking Underground Storage Tanks on Indian Land EPA Region 1 04/14/2017 07/27/2017 10/06/2017 US INDIAN LUST R4 Leaking Underground Storage Tanks on Indian Land EPA Region 4 10/14/2016 01/27/2017 05/05/2017 US INDIAN LUST R6 Leaking Underground Storage Tanks on Indian Land EPA Region 6 04/24/2017 07/27/2017 10/06/2017 US INDIAN LUST R7 Leaking Underground Storage Tanks on Indian Land EPA Region 7 04/14/2017 07/27/2017 10/06/2017 US INDIAN LUST R8 Leaking Underground Storage Tanks on Indian Land EPA Region 8 05/01/2017 07/27/2017 10/13/2017 US INDIAN LUST R9 Leaking Underground Storage Tanks on Indian Land Environmental Protection Agency 04/13/2017 07/27/2017 10/13/2017 US INDIAN LUST R10 Leaking Underground Storage Tanks on Indian Land EPA Region 10 04/25/2017 11/07/2017 12/08/2017 TX LPST Leaking Petroleum Storage Tank Database Texas Commission on Environmental Quality 12/06/2017 12/22/2017 02/13/2018

State and tribal registered storage tank lists TX UST Petroleum Storage Tank Database Texas Commission on Environmental Quality 12/11/2017 12/26/2017 02/12/2018 TX AST Petroleum Storage Tank Database Texas Commission on Environmental Quality 12/11/2017 12/26/2017 02/12/2018 US INDIAN UST R6 Underground Storage Tanks on Indian Land EPA Region 6 04/24/2017 07/27/2017 12/08/2017 US INDIAN UST R5 Underground Storage Tanks on Indian Land EPA Region 5 04/26/2017 07/27/2017 10/06/2017 US INDIAN UST R4 Underground Storage Tanks on Indian Land EPA Region 4 10/14/2016 01/27/2017 05/05/2017 US INDIAN UST R1 Underground Storage Tanks on Indian Land EPA, Region 1 04/14/2017 07/27/2017 10/06/2017 US INDIAN UST R7 Underground Storage Tanks on Indian Land EPA Region 7 05/02/2017 07/27/2017 10/06/2017 US INDIAN UST R8 Underground Storage Tanks on Indian Land EPA Region 8 05/01/2017 07/27/2017 10/13/2017 US INDIAN UST R10 Underground Storage Tanks on Indian Land EPA Region 10 04/25/2017 07/27/2017 10/13/2017 US INDIAN UST R9 Underground Storage Tanks on Indian Land EPA Region 9 04/13/2017 07/27/2017 10/13/2017 US FEMA UST Underground Storage Tank Listing FEMA 05/15/2017 05/30/2017 10/13/2017

State and tribal institutional control / engineering control registries TX AUL Sites with Controls Texas Commission on Environmental Quality 12/20/2017 01/05/2018 02/13/2018

State and tribal voluntary cleanup sites US INDIAN VCP R1 Voluntary Cleanup Priority Listing EPA, Region 1 07/27/2015 09/29/2015 02/18/2016 US INDIAN VCP R7 Voluntary Cleanup Priority Lisitng EPA, Region 7 03/20/2008 04/22/2008 05/19/2008 TX VCP RRC Voluntary Cleanup Program Sites Railroad Commission of Texas 10/25/2017 01/04/2018 02/13/2018 TX VCP TCEQ Voluntary Cleanup Program Database Texas Commission on Environmental Quality 01/04/2018 01/09/2018 02/13/2018

State and tribal Brownfields sites TX BROWNFIELDS Brownfields Site Assessments TCEQ 01/02/2018 01/02/2018 02/13/2018

Other Records US CONSENT Superfund (CERCLA) Consent Decrees Department of Justice, Consent Decree Library 09/30/2017 11/10/2017 01/12/2018 US ROD Records Of Decision EPA 12/11/2017 12/22/2017 01/12/2018 US LIENS 2 CERCLA Lien Information Environmental Protection Agency 12/11/2017 12/22/2017 01/12/2018 TX DEL SHWS Deleted Superfund Registry Sites Texas Commission on Environmental Quality 09/30/2017 10/13/2017 12/11/2017 US DEBRIS REGION 9 Torres Martinez Reservation Illegal Dump Site Locations EPA, Region 9 01/12/2009 05/07/2009 09/21/2009 TX SWRCY Recycling Facility Listing TCEQ 11/10/2017 11/10/2017 01/05/2018 US FUSRAP Formerly Utilized Sites Remedial Action Program Department of Energy 12/23/2016 12/27/2016 02/17/2017 US PCB TRANSFORMER PCB Transformer Registration Database Environmental Protection Agency 05/24/2017 11/30/2017 12/15/2017 US 2020 COR ACTION 2020 Corrective Action Program List Environmental Protection Agency 04/22/2013 03/03/2015 03/09/2015

TC5191468.2s Page GR-2 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING

St Acronym Full Name Government Agency Gov Date Arvl. Date Active Date US LEAD SMELTER 1 Lead Smelter Sites Environmental Protection Agency 10/10/2017 11/03/2017 12/15/2017 US LEAD SMELTER 2 Lead Smelter Sites American Journal of Public Health 04/05/2001 10/27/2010 12/02/2010 US US HIST CDL National Clandestine Laboratory Register Drug Enforcement Administration 01/19/2018 01/24/2018 02/09/2018 US SCRD DRYCLEANERS State Coalition for Remediation of Drycleaners Listing Environmental Protection Agency 01/01/2017 02/03/2017 04/07/2017 US COAL ASH EPA Coal Combustion Residues Surface Impoundments List Environmental Protection Agency 07/01/2014 09/10/2014 10/20/2014 US COAL ASH DOE Steam-Electric Plant Operation Data Department of Energy 12/31/2005 08/07/2009 10/22/2009 US US AIRS (AFS) Aerometric Information Retrieval System Facility Subsystem ( EPA 10/12/2016 10/26/2016 02/03/2017 US US AIRS MINOR Air Facility System Data EPA 10/12/2016 10/26/2016 02/03/2017 US US FIN ASSUR Financial Assurance Information Environmental Protection Agency 10/17/2017 11/01/2017 12/08/2017 US EPA WATCH LIST EPA WATCH LIST Environmental Protection Agency 08/30/2013 03/21/2014 06/17/2014 US Delisted NPL National Priority List Deletions EPA 12/11/2017 12/22/2017 01/05/2018 US SEMS-ARCHIVE Superfund Enterprise Management System Archive EPA 12/11/2017 12/22/2017 01/12/2018 US RCRA NonGen / NLR RCRA - Non Generators / No Longer Regulated Environmental Protection Agency 12/11/2017 12/26/2017 02/09/2018 US HMIRS Hazardous Materials Information Reporting System U.S. Department of Transportation 09/21/2017 09/21/2017 10/13/2017 US DOT OPS Incident and Accident Data Department of Transporation, Office of Pipeli 07/31/2012 08/07/2012 09/18/2012 US US CDL Clandestine Drug Labs Drug Enforcement Administration 01/09/2018 01/24/2018 02/09/2018 US US BROWNFIELDS A Listing of Brownfields Sites Environmental Protection Agency 01/19/2018 01/19/2018 02/09/2018 US DOD Department of Defense Sites USGS 12/31/2005 11/10/2006 01/11/2007 US FEDLAND Federal and Indian Lands U.S. Geological Survey 12/31/2005 02/06/2006 01/11/2007 US FUDS Formerly Used Defense Sites U.S. Army Corps of Engineers 01/31/2015 07/08/2015 10/13/2015 US UMTRA Uranium Mill Tailings Sites Department of Energy 06/23/2017 10/11/2017 11/03/2017 US ODI Open Dump Inventory Environmental Protection Agency 06/30/1985 08/09/2004 09/17/2004 US US MINES Mines Master Index File Department of Labor, Mine Safety and Health A 10/29/2017 11/28/2017 01/12/2018 US US MINES 2 Ferrous and Nonferrous Metal Mines Database Listing USGS 12/05/2005 02/29/2008 04/18/2008 US US MINES 3 Active Mines & Mineral Plants Database Listing USGS 04/14/2011 06/08/2011 09/13/2011 US PRP Potentially Responsible Parties EPA 10/25/2013 10/17/2014 10/20/2014 US TRIS Toxic Chemical Release Inventory System EPA 12/31/2016 01/10/2018 01/12/2018 US TSCA Toxic Substances Control Act EPA 12/31/2016 06/21/2017 01/05/2018 US FTTS FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fu EPA/Office of Prevention, Pesticides and Toxi 04/09/2009 04/16/2009 05/11/2009 US FTTS INSP FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fu EPA 04/09/2009 04/16/2009 05/11/2009 US HIST FTTS FIFRA/TSCA Tracking System Administrative Case Listing Environmental Protection Agency 10/19/2006 03/01/2007 04/10/2007 US HIST FTTS INSP FIFRA/TSCA Tracking System Inspection & Enforcement Case Lis Environmental Protection Agency 10/19/2006 03/01/2007 04/10/2007 US SSTS Section 7 Tracking Systems EPA 12/31/2009 12/10/2010 02/25/2011 US ICIS Integrated Compliance Information System Environmental Protection Agency 11/18/2016 11/23/2016 02/10/2017 US PADS PCB Activity Database System EPA 06/01/2017 06/09/2017 10/13/2017 US MLTS Material Licensing Tracking System Nuclear Regulatory Commission 08/30/2016 09/08/2016 10/21/2016 US RADINFO Radiation Information Database Environmental Protection Agency 10/02/2017 10/05/2017 10/13/2017 US FINDS Facility Index System/Facility Registry System EPA 07/23/2017 09/06/2017 09/15/2017 US RAATS RCRA Administrative Action Tracking System EPA 04/17/1995 07/03/1995 08/07/1995 US RMP Risk Management Plans Environmental Protection Agency 11/02/2017 11/17/2017 12/08/2017 US BRS Biennial Reporting System EPA/NTIS 12/31/2015 02/22/2017 09/28/2017 US PWS Public Water System Data EPA 12/17/2013 01/09/2014 10/15/2014 US INDIAN RESERV Indian Reservations USGS 12/31/2014 07/14/2015 01/10/2017 US INDIAN ODI Report on the Status of Open Dumps on Indian Lands Environmental Protection Agency 12/31/1998 12/03/2007 01/24/2008 TX AIRS Current Emission Inventory Data Texas Commission on Environmental Quality 01/11/2018 01/12/2018 02/13/2018 TX APAR Affected Property Assessment Report Site Listing Texas Commission on Environmental Quality 01/09/2018 01/19/2018 02/13/2018 TX ASBESTOS Asbestos Notification Listing Department of State Health Services 01/05/2018 01/16/2018 02/13/2018

TC5191468.2s Page GR-3 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING

St Acronym Full Name Government Agency Gov Date Arvl. Date Active Date TX COAL ASH Coal Ash Disposal Sites Texas Commission on Environmental Quality 10/03/2017 11/03/2017 12/11/2017 TX DRYCLEANERS Drycleaner Registration Database Listing Texas Commission on Environmental Quality 11/03/2017 11/29/2017 01/05/2018 TX ED AQUIF Edwards Aquifer Permits Texas Commission on Environmental Quality, Au 01/04/2018 01/11/2018 02/13/2018 TX ENFORCEMENT Notice of Violations Listing Texas Commission on Environmental Quality 10/19/2017 10/19/2017 12/12/2017 TX Financial Assurance 1 Financial Assurance Information Listing Texas Commission on Environmental Quality 12/27/2017 12/28/2017 02/13/2018 TX Financial Assurance 2 Financial Assurance Information Listing Texas Commission on Environmental Quality 12/11/2017 12/26/2017 02/13/2018 TX GCC Groundwater Contamination Cases Texas Commission on Environmental Quality 12/31/2016 09/08/2017 09/11/2017 TX HIST LIENS Environmental Liens Listing Texas Commission on Environmental Qualilty 03/23/2007 03/23/2007 05/02/2007 TX Ind. Haz Waste Industrial & Hazardous Waste Database Texas Commission on Environmental Quality 12/05/2017 01/18/2018 02/13/2018 TX IHW CORR ACTION IHW CORR ACTION Texas Commission on Environmental Quality 01/02/2018 01/02/2018 02/13/2018 TX IOP Innocent Owner/Operator Program Texas Commission on Environmental Quality 01/02/2018 01/02/2018 02/13/2018 TX LIENS Environmental Liens Listing Texas Commission on Environmental Quality 12/20/2017 01/05/2018 02/13/2018 TX MSD Municipal Settings Designations Database Texas Commission on Environmental Quality 10/30/2017 10/31/2017 12/11/2017 TX NPDES NPDES Facility List Texas Commission on Environmental Quality 11/14/2017 11/16/2017 01/09/2018 TX PRIORITY CLEANERS Dry Cleaner Remediation Program Prioritization List Texas Commisision on Environmenatl Quality 09/22/2017 12/06/2017 01/05/2018 TX RWS Radioactive Waste Sites Texas Commission on Environmental Quality 07/24/2006 12/14/2006 01/23/2007 TX SPILLS Spills Database Texas Commission on Environmental Quality 02/01/2018 02/02/2018 02/14/2018 TX SPILLS 80 SPILLS80 data from FirstSearch FirstSearch 05/15/2005 01/03/2013 03/07/2013 TX SPILLS 90 SPILLS90 data from FirstSearch FirstSearch 10/23/2012 01/03/2013 03/07/2013 TX TIER 2 Tier 2 Chemical Inventory Reports Department of State Health Services 12/31/2012 06/07/2013 07/22/2013 TX UIC Underground Injection Wells Database Listing Texas Commission on Environmental Quality 10/05/2017 10/06/2017 12/11/2017 US FUELS PROGRAM EPA Fuels Program Registered Listing EPA 11/20/2017 11/20/2017 01/12/2018 US ECHO Enforcement & Compliance History Information Environmental Protection Agency 09/02/2017 09/06/2017 10/20/2017 US UXO Unexploded Ordnance Sites Department of Defense 09/30/2016 10/31/2017 01/12/2018 US IHS OPEN DUMPS Open Dumps on Indian Land Department of Health & Human Serivces, Indian 04/01/2014 08/06/2014 01/29/2015 US ABANDONED MINES Abandoned Mines Department of Interior 09/25/2017 09/26/2017 10/20/2017 US DOCKET HWC Hazardous Waste Compliance Docket Listing Environmental Protection Agency 06/27/2017 11/21/2017 01/12/2018

HISTORICAL USE RECORDS US EDR MGP EDR Proprietary Manufactured Gas Plants EDR, Inc. US EDR Hist Auto EDR Exclusive Historical Auto Stations EDR, Inc. US EDR Hist Cleaner EDR Exclusive Historical Cleaners EDR, Inc. TX RGA HWS Recovered Government Archive State Hazardous Waste Facilitie Texas Commission on Environmental Quality 07/01/2013 12/26/2013 TX RGA LF Recovered Government Archive Solid Waste Facilities List Texas Commission on Environmental Quality 07/01/2013 01/13/2014

TC5191468.2s Page GR-4 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING

St Acronym Full Name Government Agency Gov Date Arvl. Date Active Date

COUNTY RECORDS TX HIST UST AUSTIN Historic Tank Records Department of Planning & Development Review 06/25/2012 06/29/2012 08/23/2012

STREET AND ADDRESS INFORMATION

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TC5191468.2s Page GR−5

APPENDIX F

NEPA Search Description

GEOTECH ENGINEERING AND TESTING 49th Street 49th Street Galveston, TX 77551

Inquiry Number: 5191468.11s February 16, 2018

tropeR paM ™hcraeSAPEN RDE ™hcraeSAPEN paM tropeR

6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com

FORM-GXH TABLE OF CONTENTS

SECTION______PAGE_____ EDR NEPASearch Description...... 1

Map Findings Summary...... 2

Natural Areas...... 3

Historic Sites...... 21

Flood Plain...... 31

Wetlands...... 33

Wetlands Classification System...... 35

FCC & FAA Sites...... 39

Key Contacts and Government Records Searched...... 49

Thank you for your business. Please contact EDR at 1-800-352-0050 with any questions or comments.

The National Environmental Policy Act of 1969 (NEPA) requires that Federal agencies include in their decision-making processes appropriate and careful consideration of all environmental effects and actions, analyze potential environmental effects of proposed actions and their alternatives for public understanding and scrutiny, avoid or minimize adverse effects of proposed actions, and restore and enhance environmental quality as much as possible. The EDR NEPASearch Map Report provides information which may be used, in conjunction with additional research, to determine whether a proposed site or action will have significant environmental effect.

TARGET PROPERTY ADDRESS

49TH STREET Inquiry #: 5191468.11s 49TH STREET Date: 2/16/18 GALVESTON, TX 77551

TARGET PROPERTY COORDINATES

Latitude (North): 29.281300 - 29˚ 16’ 52.7’’ Longitude (West): 94.818077 - 94˚ 49’ 5.1’’ Universal Tranverse Mercator: Zone 15 UTM X (Meters): 323381.9 UTM Y (Meters): 3240345.5

The report provides maps and data for the following items (where available). Search results are provided in the Map Findings Summary on page 2 of this report.

Section Regulation Natural Areas Map • Federal Lands Data: - Officially designated wilderness areas 47 CFR 1.1307(1) - Officially designated wildlife preserves, sanctuaries 47 CFR 1.1307(2) and refuges - Wild and scenic rivers 40 CFR 6.302(e) - Fish and Wildlife 40 CFR 6.302 • Threatened or Endangered Species, Fish 47 CFR 1.1307(3); 40 CFR 6.302 and Wildlife, Critical Habitat Data (where available)

Historic Sites Map • National Register of Historic Places 47 CFR 1.1307(4); 40 CFR 6.302 • State Historic Places (where available) • Indian Reservations

Flood Plain Map • National Flood Plain Data (where available) 47 CFR 1.1307(6); 40 CFR 6.302

Wetlands Map • National Wetlands Inventory Data (where available) 47 CFR 1.1307(7); 40 CFR 6.302

FCC & FAA Map • FCC antenna/tower sites, FAA Markings and 47 CFR 1.1307(8) Obstructions, Airports, Topographic gradient

Key Contacts and Government Records Searched

TC5191468.11s Page 1 of 56 MAP FINDINGS SUMMARY

The databases searched in this report are listed below. Database descriptions and other agency contact information is contained in the Key Contacts and Government Records Searched section on page 49 of this report.

Search Distance Within Within Applicable Regulation from 47 CFR/FCC Checklist Database (Miles) Search 1/8 Mile

NATURAL AREAS MAP 1.1307a (1) Officially Designated Wilderness Area US Federal Lands 1.00 NO NO US Wilderness Preservation 1.00 NO NO 1.1307a (2) Officially Designated Wildlife Preserve US Federal Lands 1.00 NO NO US Critical Water Habitat 1.00 NO NO US Scenic River 1.00 NO NO US NCED 1.00 NO NO US Critical Land Habitat 1.00 NO NO US ACEC 1.00 NO NO TX Wildlife Management Areas 1.00 NO NO 1.1307a (3) Threatened or Endangered Species or US Endangered Species County YES N/A Critical Habitat 1.1307a (3) Threatened or Endangered Species or TX Endangered Species 1.00 YES YES Critical Habitat

HISTORIC SITES MAP 1.1307a (4) Listed or eligible for National Register Natchez Trace National Scenic 1.00 NO NO 1.1307a (4) Listed or eligible for National Register TX National Reg Districts 1.00 YES NO 1.1307a (4) Listed or eligible for National Register TX Cemeteries 1.00 YES NO 1.1307a (4) Listed or eligible for National Register TX Historic Sites 1.00 NO NO 1.1307a (4) Listed or eligible for National Register TX National Reg Properties 1.00 YES NO 1.1307a (4) Listed or eligible for National Register TX Historical Markers 1.00 YES NO 1.1307a (4) Listed or eligible for National Register Potomac Heritage National Scen 1.00 NO NO Indian Reservations 1.00 NO NO 1.1307a (4) Listed or eligible for National Register US Trails 1.00 NO NO 1.1307a (4) Listed or eligible for National Register National Register of Hist. Pla 1.00 YES NO

FLOODPLAIN MAP 1.1307 (6) Located in a Flood Plain FLOODPLAIN 1.00 YES YES

WETLANDS MAP 1.1307 (7) Change in surface features (wetland fill) NWI 1.00 YES NO TX COASTAL ZONE 20.00 YES YES

FCC & FAA SITES MAP Cellular 1.00 NO NO Antenna Structure Registration 1.00 YES NO AM Antenna 1.00 NO NO FM Antenna 1.00 NO NO FAA DOF 1.00 YES NO Airports 1.00 YES --- Power Lines 1.00 YES ---

TC5191468.11s Page 2 of 56 TC5191468.11s Page 3 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for GALVESTON County Group:Birds

Common Name: Sprague’s pipit Scientific Name: Anthus spragueii Status: Candidate

Common Name: Piping Plover Scientific Name: Charadrius melodus Status: Threatened

Common Name: Eskimo curlew Scientific Name: Numenius borealis Status: Endangered

Common Name: Red knot Scientific Name: Calidris canutus rufa Status: Threatened

Group:Mammals

Common Name: West Indian Manatee Scientific Name: Trichechus manatus Status: Endangered

Group:Reptiles

Common Name: Loggerhead sea turtle Scientific Name: Caretta caretta Status: Threatened

Common Name: Green sea turtle Scientific Name: Chelonia mydas Status: Threatened

Common Name: Kemp’s ridley sea turtle Scientific Name: Lepidochelys kempii Status: Endangered

Common Name: Leatherback sea turtle Scientific Name: Dermochelys coriacea Status: Endangered

Common Name: Hawksbill sea turtle Scientific Name: Eretmochelys imbricata Status: Endangered

Federal Endangered Species from the U.S. Fish and Wildlife for TX State Group:Amphibians

Common Name: Black-spotted newt Scientific Name: Notophthalmus meridionalis Status: Under Review

Common Name: Cascade Caverns salamander Scientific Name: Eurycea latitans Status: Under Review

Common Name: Rio Grande lesser siren Scientific Name: Siren intermedia texana Status: Species of Concern

Common Name: Comal blind salamander Scientific Name: Eurycea tridentifera Status: Under Review

Common Name: Texas salamander Scientific Name: Eurycea neotenes Status: Under Review

Group:Birds

Common Name: Migrant loggerhead shrike Scientific Name: Lanius ludovicianus migrans Status: Species of Concern

TC5191468.11s Page 4 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Northern gray hawk Scientific Name: Buteo nitidus maximus Status: Species of Concern

Common Name: Audubon’s oriole Scientific Name: Icterus graduacauda audubonii Status: Species of Concern

Common Name: Brownsville common yellowthroat Scientific Name: Geothlypis trichas insperata Status: Species of Concern

Common Name: Sennett’s hooded oriole Scientific Name: Icterus cucullatus sennetti Status: Species of Concern

Common Name: Southwestern willow flycatcher Scientific Name: Empidonax traillii extimus Status: Endangered

Common Name: Golden-winged warbler Scientific Name: Vermivora chrysoptera Status: Under Review

Common Name: Yellow-billed Cuckoo Scientific Name: Coccyzus americanus Status: Threatened

Common Name: Black Rail Scientific Name: Laterallus jamaicensis Status: Under Review

Common Name: Texas olive sparrow Scientific Name: Arremonops rufivirgatus rufivirgatus Status: Species of Concern

Common Name: Mexican hooded oriole Scientific Name: Icterus cucullatus cucullatus Status: Species of Concern

Common Name: Tropical parula Scientific Name: Parula pitiayumi nigrilora Status: Species of Concern

Common Name: Texas Botteri’s sparrow Scientific Name: Aimophila botterii texana Status: Species of Concern

Group:Clams

Common Name: False spike Scientific Name: Quincuncina mitchelli Status: Under Review

Common Name: Texas heelsplitter Scientific Name: Potamilus amphichaenus Status: Under Review

Common Name: Salina mucket Scientific Name: Disconaias salinasensis Status: Species of Concern

Common Name: Mexican fawnsfoot Scientific Name: Truncilla cognata Status: Under Review

Group:Crustaceans

Common Name: Texas cave shrimp Scientific Name: Palaemonetes antrorum Status: Species of Concern

Common Name: Kisatchie Painted crayfish Scientific Name: Orconectes maletae

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Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Status: Under Review

Common Name: Bifurcated cave amphipod Scientific Name: Stygobromus bifurcatus Status: Species of Concern

Common Name: Long-legged cave amphipod Scientific Name: Stygobromus longipes Status: Species of Concern

Common Name: Balcones cave amphipod Scientific Name: Stygobromus balconis Status: Species of Concern

Common Name: Ezell’s Cave amphipod Scientific Name: Stygobromus flagellatus Status: Species of Concern

Group:Ferns and Allies

Common Name: Rock quillwort Scientific Name: Isoetes lithophila Status: Species of Concern

Common Name: Hall’s Pocket moss Scientific Name: Fissidens hallii Status: Under Review

Group:Fishes

Common Name: Arkansas River speckled chub Scientific Name: Macrhybopsis aestivalis tetranemus Status: Species of Concern

Common Name: Chihuahua shiner Scientific Name: Notropis chihuahua Status: Species of Concern

Common Name: Conchos pupfish Scientific Name: Cyprinodon eximius Status: Species of Concern

Common Name: Rio Grande shiner Scientific Name: Notropis jemezanus Status: Species of Concern

Common Name: Chihuahua catfish Scientific Name: Ictalurus sp. Status: Species of Concern

Common Name: Widemouth blindcat Scientific Name: Satan eurystomus Status: Under Review

Common Name: prairie chub Scientific Name: Macrhybopsis australis Status: Under Review

Common Name: Mexican stoneroller Scientific Name: Campostoma ornatum Status: Species of Concern

Common Name: Plains minnow Scientific Name: Hybognathus placitus Status: Species of Concern

Common Name: Bluehead shiner Scientific Name: Pteronotropis hubbsi Status: Status Undefined

Common Name: Blotched gambusia Scientific Name: Gambusia senilis Status: Species of Concern

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Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Rio Grande darter Scientific Name: Etheostoma grahami Status: Species of Concern

Common Name: Guadalupe bass Scientific Name: Micropterus treculii Status: Species of Concern

Common Name: Proserpine shiner Scientific Name: Cyprinella proserpina Status: Species of Concern

Common Name: Toothless blindcat Scientific Name: Trogloglanis pattersoni Status: Under Review

Group:Flowering Plants

Common Name: Rough-seeded fameflower Scientific Name: Talinum rugospermum Status: Species of Concern

Common Name: Hinckley’s columbine Scientific Name: Aquilegia chrysantha hinckleyana Status: Species of Concern

Common Name: White column cory cactus Scientific Name: Escobaria albicolumnaria Status: Species of Concern

Common Name: Slender spiderflower Scientific Name: Cleome multicaulis Status: Species of Concern

Common Name: Sonora fleabane Scientific Name: Erigeron versicolor Status: Species of Concern

Common Name: [Unnamed] indian paintbrush Scientific Name: Castilleja wootonii Status: Species of Concern

Common Name: Correll’s false dragon-head Scientific Name: Physostegia correllii Status: Under Review

Common Name: Two-bristle rock-daisy Scientific Name: Perityle bisetosa bisetosa Status: Species of Concern

Common Name: No common name Scientific Name: Coursetia glabella Status: Species of Concern

Common Name: [Unnamed] bush-pea Scientific Name: Genistidium dumosum Status: Under Review

Common Name: Slender gay-feather Scientific Name: Liatris tenuis Status: Species of Concern

Common Name: No common name Scientific Name: Chrysothamnus nauseosus texensis Status: Species of Concern

Common Name: Runyon huaco Scientific Name: Manfreda longiflora Status: Species of Concern

Common Name: Flat dune sedge Scientific Name: Cyperus onerosus Status: Species of Concern

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Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: [Unnamed] lady’s-slipper Scientific Name: Cypripedium kentuckiense Status: Species of Concern

Common Name: Maravillas milkwort Scientific Name: Polygala maravillasensis Status: Species of Concern

Common Name: Gypsum scalebroom Scientific Name: Lepidospartum burgessii Status: Species of Concern

Common Name: Trans-Pecos maidenbush Scientific Name: Phyllanthopsis arida Status: Species of Concern

Common Name: Duncan’s cory cactus Scientific Name: Coryphantha duncanii Status: Species of Concern

Common Name: Hardtoe seepweed Scientific Name: Suaeda nigra Status: Species of Concern

Common Name: Sandhill four-o’clock Scientific Name: Mirabilis nyctaginea Status: Species of Concern

Common Name: No common name Scientific Name: Physostegia longisepala Status: Species of Concern

Common Name: [Unnamed] milkweed Scientific Name: Asclepias prostrata Status: Under Review

Common Name: Lilia de los llanos Scientific Name: Echeandia chandleri Status: Species of Concern

Common Name: Guadalupe smooth aster Scientific Name: Aster laevis guadalupensis Status: Species of Concern

Common Name: White blanketflower Scientific Name: Gaillardia aestivalis winkleri Status: Species of Concern

Common Name: Terlingua bricklebush Scientific Name: Brickellia brachyphylla terlinguensis Status: Species of Concern

Common Name: Scarlet catchfly Scientific Name: Silene subciliata Status: Species of Concern

Common Name: Big red sage Scientific Name: Salvia penstemonoides Status: Species of Concern

Common Name: Bog coneflower Scientific Name: Rudbeckia scabrifolia Status: Species of Concern

Common Name: Cliff bedstraw Scientific Name: Galium correllii Status: Species of Concern

Common Name: Roughseed sea-purslane Scientific Name: Sesuvium trianthemoides Status: Species of Concern

Common Name: No common name Scientific Name: Chrysothamnus parryi hinckleyi Status: Species of Concern

TC5191468.11s Page 8 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Falfurrias anglepod Scientific Name: Matelea radiata Status: Species of Concern

Common Name: Big Bend hop hornbeam Scientific Name: Ostrya chisosensis Status: Species of Concern

Common Name: Alamo beardtongue Scientific Name: Penstemon alamosensis Status: Species of Concern

Common Name: Wright’s water-willow Scientific Name: Justicia wrightii Status: Species of Concern

Common Name: Stairstep two-bristle rock-daisy Scientific Name: Perityle bisetosa scalaris Status: Species of Concern

Common Name: McKittrick snowberry Scientific Name: Symphoricarpos guadalupensis Status: Species of Concern

Common Name: Warner hawthorn Scientific Name: Crataegus warneri Status: Species of Concern

Common Name: Paper-spined cactus Scientific Name: Sclerocactus papyracanthus Status: Species of Concern

Common Name: Runyon’s water-willow Scientific Name: Justicia runyonii Status: Species of Concern

Common Name: Livermore sweet-cicely Scientific Name: Osmorhiza mexicana bipatriata Status: Species of Concern

Common Name: Comal snakewood Scientific Name: Colubrina stricta Status: Species of Concern

Common Name: Canyon mock orange Scientific Name: Philadelphus ernestii Status: Species of Concern

Common Name: Welder machearanthera Scientific Name: Psilactis heterocarpa Status: Species of Concern

Common Name: Dimmit sunflower Scientific Name: Helianthus praecox hirtus Status: Species of Concern

Common Name: Pale phacelia Scientific Name: Phacelia pallida Status: Species of Concern

Common Name: Edwards’ brasil Scientific Name: Condalia hookeri edwardsiana Status: Species of Concern

Common Name: Chaffey’s cory cactus Scientific Name: Coryphantha chaffeyi Status: Species of Concern

Common Name: Withered wooly milk-vetch Scientific Name: Astragalus mollissimus marcidus Status: Species of Concern

Common Name: Desert night-blooming cereus Scientific Name: Peniocereus greggii greggii Status: Species of Concern

TC5191468.11s Page 9 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: No common name Scientific Name: Thalictrum arkansanum Status: Species of Concern

Common Name: Tissue sedge Scientific Name: Carex hyalina Status: Species of Concern

Common Name: Small-headed pipewort Scientific Name: Eriocaulon kornickianum Status: Under Review

Common Name: Broad-pod rushpea Scientific Name: Caesalpinia brachycarpa Status: Species of Concern

Common Name: Hall’s bullrush Scientific Name: Schoenoplectus hallii Status: Under Review

Common Name: Sabinal prairie-clover Scientific Name: Dalea sabinalis Status: Species of Concern

Common Name: [Unnamed] bluegrass Scientific Name: Poa strictiramea Status: Species of Concern

Common Name: Edwards’ Plateau cornsalad Scientific Name: Valerianella texana Status: Species of Concern

Common Name: Texas greasebush Scientific Name: Glossopetalon texense Status: Species of Concern

Common Name: Wild, Hill Country mercury Scientific Name: Argythamnia aphoroides Status: Species of Concern

Common Name: Thieret’s skullcap Scientific Name: Scutellaria thieretii Status: Species of Concern

Common Name: Lindheimer’s tickseed Scientific Name: Desmodium lindheimeri Status: Species of Concern

Common Name: Texas trumpets Scientific Name: Acleisanthes crassifolia Status: Species of Concern

Common Name: Texas windmill grass Scientific Name: Chloris texensis Status: Species of Concern

Common Name: Houston tansyaster Scientific Name: Rayjacksonia aurea Status: Species of Concern

Common Name: Hester’s cory cactus Scientific Name: Escobaria hesteri Status: Species of Concern

Common Name: Texas wolfberry Scientific Name: Lycium texanum Status: Species of Concern

Common Name: Bushy wild-buckwheat Scientific Name: Eriogonum suffruticosum Status: Species of Concern

Common Name: Sandhill goosefoot Scientific Name: Chenopodium cycloides Status: Species of Concern

TC5191468.11s Page 10 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Sand prickly-pear Scientific Name: Opuntia arenaria Status: Species of Concern

Common Name: Auriculate false-foxglove Scientific Name: Agalinis auriculata Status: Species of Concern

Common Name: Sand sacahuista Scientific Name: Nolina arenicola Status: Species of Concern

Common Name: Edge Falls anemone Scientific Name: Anemone edwardsiana petraea Status: Species of Concern

Common Name: Drummond’s yellow-eyed grass Scientific Name: Xyris drummondii Status: Species of Concern

Common Name: Swallow spurge Scientific Name: Chamaesyce golondrina Status: Species of Concern

Common Name: Silver cholla Scientific Name: Opuntia imbricata argentea Status: Species of Concern

Common Name: Marble-seeded, few-spined prickly-pear Scientific Name: Opuntia engelmannii flexospina Status: Species of Concern

Common Name: Golden wave tickseed Scientific Name: Coreopsis intermedia Status: Species of Concern

Common Name: Glass Mountain coral-root Scientific Name: Hexalectris nitida Status: Species of Concern

Common Name: Comanche-peak prairie-clover Scientific Name: Dalea reverchonii Status: Species of Concern

Common Name: Slender dodder Scientific Name: Cuscuta attenuata Status: Species of Concern

Common Name: Bailey’s ballmoss Scientific Name: Tillandsia baileyi Status: Species of Concern

Common Name: Chisos coral-root Scientific Name: Hexalectris revoluta Status: Under Review

Common Name: Nickel’s cory cactus Scientific Name: Coryphantha sulcata nickelsiae Status: Species of Concern

Common Name: Texas trillium Scientific Name: Trillium pusillum texanum Status: Under Review

Common Name: No common name Scientific Name: Coryphantha dasyacantha dasyacantha Status: Species of Concern

Common Name: Mat leastdaisy Scientific Name: Chaetopappa hersheyi Status: Species of Concern

Common Name: Texas screwstem Scientific Name: Bartonia texana Status: Under Review

TC5191468.11s Page 11 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Umbrella sedge Scientific Name: Cyperus grayoides Status: Species of Concern

Common Name: Young’s snowbell Scientific Name: Styrax platanifolius ssp. youngiae Status: Species of Concern

Common Name: Purple, Texas spike Scientific Name: Hexalectris warnockii Status: Species of Concern

Common Name: Chisos agave Scientific Name: Agave glomeruliflora Status: Species of Concern

Common Name: Hinckley’s jacob’s ladder Scientific Name: Polemonium pauciflorum hinckleyi Status: Species of Concern

Common Name: Wilkinson’s whitlow-wort Scientific Name: Paronychia wilkinsonii Status: Species of Concern

Common Name: Incised groovebur Scientific Name: Agrimonia incisa Status: Species of Concern

Common Name: Golden-spined hedgehog cactus Scientific Name: Echinocereus viridiflorus cylindricus Status: Species of Concern

Common Name: Sierra Vieja brickellia Scientific Name: Brickellia viejensis Status: Species of Concern

Common Name: Houston meadowrue Scientific Name: Thalictrum texanum Status: Species of Concern

Common Name: Three-tongued spurge Scientific Name: Chamaesyce chaetocalyx triligulata Status: Species of Concern

Common Name: Few-flowered jewelflower Scientific Name: Streptanthus sparsiflorus Status: Species of Concern

Common Name: Long spur columbine Scientific Name: Aquilegia longissima Status: Species of Concern

Common Name: Rough-stemmed aster Scientific Name: Aster puniceus scabricaulis Status: Under Review

Common Name: Barbed rattlesnake root Scientific Name: Prenanthes barbata Status: Species of Concern

Common Name: Standley whitlow-grass Scientific Name: Draba standleyi Status: Species of Concern

Common Name: Little-leaf brongniartia Scientific Name: Brongniartia minutifolia Status: Species of Concern

Common Name: Shinner’s sunflower Scientific Name: Helianthus occidentalis ssp. plantagineus Status: Under Review

Common Name: Mathis spiderling Scientific Name: Boerhavia mathisiana Status: Species of Concern

TC5191468.11s Page 12 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Old Blue mock pennyroyal Scientific Name: Hedeoma pilosum Status: Species of Concern

Common Name: Heather leaf-flower Scientific Name: Phyllanthus ericoides Status: Species of Concern

Common Name: [Unnamed] evening-primrose Scientific Name: Oenothera pilosella sessilis Status: Species of Concern

Common Name: No common name Scientific Name: Thelocactus bicolor flavidispinus Status: Species of Concern

Common Name: Tharp blue-star Scientific Name: Amsonia tharpii Status: Under Review

Common Name: Small papillosus Scientific Name: Echinocereus papillosus angusticeps Status: Species of Concern

Common Name: Saiya Scientific Name: Amoreuxia gonzalezii Status: Under Review

Common Name: Tiny bog buttons Scientific Name: Lachnocaulon digynum Status: Species of Concern

Common Name: Robert’s stonecrop Scientific Name: Sedum robertsianum Status: Species of Concern

Common Name: Cutler’s twistflower Scientific Name: Streptanthus cutleri Status: Species of Concern

Group:Insects

Common Name: Disjunct crawling water beetle Scientific Name: Haliplus nitens Status: Species of Concern

Common Name: Texas cave diving beetle Scientific Name: Haideoporus texanus Status: Under Review

Common Name: Black lordithon rove beetle Scientific Name: Lordithon niger Status: Species of Concern

Common Name: Bonita diving beetle Scientific Name: Deronectes neomexicana Status: Species of Concern

Common Name: Monarch buttefly Scientific Name: Danaus plexippus plexippus Status: Under Review

Common Name: Texas minute moss beetle Scientific Name: Limnebius texanus Status: Species of Concern

Common Name: Los Olmos tiger beetle Scientific Name: Cicindela nevadica olmosa Status: Species of Concern

Common Name: Florida oxyethiran micro caddisfly Scientific Name: Oxyethira florida Status: Species of Concern

TC5191468.11s Page 13 of 56 NATURAL AREAS MAP FINDINGS

Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: [Unnamed] noctuid moth Scientific Name: Schinia indiana Status: Species of Concern

Common Name: Cazier’s tiger beetle Scientific Name: Cicindela cazieri Status: Species of Concern

Common Name: Superb grasshopper Scientific Name: Eximacris superbum Status: Species of Concern

Common Name: Balmorhea saddle-case caddisfly Scientific Name: Protoptila balmorhea Status: Species of Concern

Common Name: Texas austrotinodes caddisfly Scientific Name: Austrotinodes sp. Status: Species of Concern

Common Name: Texas asaphomyian tabanid fly Scientific Name: Asaphomyia texanus Status: Species of Concern

Common Name: Wabash belted skimmer Scientific Name: Macromia taeniolata Status: Species of Concern

Common Name: Tibial scarab Scientific Name: Anomala tibialis Status: Species of Concern

Common Name: Morse’s Little Plain Brown sedge Scientific Name: Lepidostoma morsei Status: Under Review

Common Name: Smyth’s tiger beetle Scientific Name: Cicindela chlorocephala smythi Status: Species of Concern

Common Name: Balmorhea damselfly Scientific Name: Argia sp. Status: Species of Concern

Common Name: Neojuvenile tiger beetle Scientific Name: Cicindela obsoleta neojuvenilis Status: Species of Concern

Common Name: Subtropical blue-black tiger beetle Scientific Name: Cicindela nigrocoerulea subtropica Status: Species of Concern

Common Name: Big Thicket emerald dragonfly Scientific Name: Somatochlora margarita Status: Under Review

Group:Mammals

Common Name: Desert pocket gopher Scientific Name: Geomys bursarius arenarius Status: Species of Concern

Common Name: Cave myotis Scientific Name: Myotis velifer Status: Species of Concern

Common Name: Guadalupe southern pocket gopher Scientific Name: Thomomys umbrinus guadalupensis Status: Species of Concern

Common Name: Palo Duro mouse Scientific Name: Peromyscus truei comanche Status: Species of Concern

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Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Pecos River muskrat Scientific Name: Ondatra zibethicus ripensis Status: Species of Concern

Common Name: Mexican long-tongued bat Scientific Name: Choeronycteris mexicana Status: Species of Concern

Common Name: Spotted bat Scientific Name: Euderma maculatum Status: Species of Concern

Common Name: Carrizo Springs Texas pocket gopher Scientific Name: Geomys personatus streckeri Status: Species of Concern

Common Name: Aransas short-tailed shrew Scientific Name: Blarina hylophaga plumbea Status: Species of Concern

Common Name: Davis Mountains cottontail rabbit Scientific Name: Sylvilagus floridanus robustus Status: Species of Concern

Common Name: Limpia southern pocket gopher Scientific Name: Thomomys umbrinus limpiae Status: Species of Concern

Common Name: Southeastern myotis Scientific Name: Myotis austroriparius Status: Species of Concern

Common Name: Limpia Creek pocket gopher Scientific Name: Thomomys umbrinus texensis Status: Species of Concern

Common Name: Occult little brown bat Scientific Name: Myotis lucifugus occultus Status: Species of Concern

Common Name: Texas kangaroo rat Scientific Name: Dipodomys elator Status: Under Review

Common Name: Maritime Texas pocket gopher Scientific Name: Geomys personatus maritimus Status: Species of Concern

Common Name: Coues’ rice rat Scientific Name: Oryzomys couesi aquaticus Status: Species of Concern

Common Name: Louisiana black bear Scientific Name: Ursus americanus luteolus Status: Threatened

Common Name: Greater western mastiff-bat Scientific Name: Eumops perotis californicus Status: Species of Concern

Common Name: Big Thicket hog-nosed skunk Scientific Name: Conepatus mesoleucus telmalestes Status: Species of Concern

Common Name: Presidio mole Scientific Name: Scalopus aquaticus texanus Status: Species of Concern

Common Name: Gray-footed Chipmunk Scientific Name: Tamias canipes Status: Species of Concern

Common Name: Yellow-nosed cotton rat Scientific Name: Sigmodon ochrognathus Status: Species of Concern

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Federal Endangered Species from the U.S. Fish and Wildlife for TX State (Continued...) Common Name: Baker’s Llano pocket gopher Scientific Name: Geomys texensis bakeri Status: Species of Concern

Common Name: Arizona black-tailed prairie dog Scientific Name: Cynomys ludovicianus arizonensis Status: Species of Concern

Group:Reptiles

Common Name: Big Bend mud turtle Scientific Name: Kinosternon hirtipes murrayi Status: Species of Concern

Common Name: Spot-tailed earless lizard Scientific Name: Holbrookia lacerata Status: Under Review

Common Name: Reticulate collared lizard Scientific Name: Crotaphytus reticulatus Status: Under Review

Common Name: Gray-checkered whiptail Scientific Name: Cnemidophorus dixoni Status: Species of Concern

Common Name: Texas diamondback terrapin Scientific Name: Malaclemys terrapin littoralis Status: Species of Concern

Common Name: Texas garter snake Scientific Name: Thamnophis sirtalis annectens Status: Species of Concern

Group:Snails

Common Name: Palmetto pillsnail Scientific Name: Euchemotrema cheatumi Status: Species of Concern

Common Name: Mimic cavesnail Scientific Name: Phreatodrobia imitata Status: Under Review

Common Name: Franklin Mountain wood snail Scientific Name: Ashmunella pasonis Status: Species of Concern

Common Name: Horseshoe liptooth Scientific Name: Polygyra hippocrepis Status: Species of Concern

Common Name: Franklin Mountain talussnail Scientific Name: Sonorella metcalfi Status: Species of Concern

Common Name: Davis County springsnail Scientific Name: Fontelicella davisi Status: Species of Concern

Common Name: Presidio County springsnail Scientific Name: Fontelicella metcalfi Status: Species of Concern

TC5191468.11s Page 16 of 56 NATURAL AREAS MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

1 North TXESP0000024060 0-1/8 mi TX Endangered Species 0 Common Name: Grand Prairie evening primrose Scientific Name: Oenothera pilosella ssp. sessilis Global Rank: G5T2 State Rank: SH Element Occurrence ID: 3193 EO Rank: Historical

2 WNW TXESP0000024118 1/8-1/4 mi TX Endangered Species 899 Common Name: Grand Prairie evening primrose Scientific Name: Oenothera pilosella ssp. sessilis Global Rank: G5T2 State Rank: SH Element Occurrence ID: 3193 EO Rank: Historical

Common Name: plains spotted skunk Scientific Name: Spilogale putorius interrupta Global Rank: G4T4 State Rank: S3 Element Occurrence ID: 12553 EO Rank: Historical

3 ENE TXESP0000024513 1/2-1 mi TX Endangered Species 3666 Common Name: Not Reported Scientific Name: Migratory Songbird Fallout Site Global Rank: G3 State Rank: SNR Element Occurrence ID: 529 EO Rank: Not Reported

Common Name: Grand Prairie evening primrose Scientific Name: Oenothera pilosella ssp. sessilis Global Rank: G5T2 State Rank: SH Element Occurrence ID: 3193

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EO Rank: Historical

4 North TXESP0000024643 1/2-1 mi TX Endangered Species 5262 Common Name: Grand Prairie evening primrose Scientific Name: Oenothera pilosella ssp. sessilis Global Rank: G5T2 State Rank: SH Element Occurrence ID: 3193 EO Rank: Historical

Common Name: plains spotted skunk Scientific Name: Spilogale putorius interrupta Global Rank: G4T4 State Rank: S3 Element Occurrence ID: 12553 EO Rank: Historical

Common Name: Not Reported Scientific Name: Rookery Global Rank: G5 State Rank: SNR Element Occurrence ID: 4838 EO Rank: Not Reported

TC5191468.11s Page 18 of 56 Endangered Species Codes

Global Imperilment Rank Codes - GRANK: Priority rank (1-5) based on number of occurrences through element’s range.

G1 - Critically imperiled globally because of extreme rarity (5 or fewer occurrences or very few remaining individuals or acres) or because of some factor(s) making it especially vulnerable to extinction. G2 - Imperiled globally because of rarity (6-20 occurrences or few remaining individuals or acres) or because of some factor(s) making it especially vulnerable to extinction. G3 - Vulnerable. Either very rare and local throughout its range or found locally (even abundantly at some of its locations) in a restricted range. (e.g., a single western state, a physiographic region in the East) or because of other factors making it vulnerable to extinction throughout its range; in terms of occurrences, in the range of 21 - 100. G4 - Apparently secure globally, though it may be quite rare in parts of its range, especially at the periphery. G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. GH - Possibly extinct or eliminated. Of historical occurrence throughout its range, i.e., formerly part of the established biota, with the expectation that it may be rediscovered (e.g., Bachman’s Warbler). For historic and ecological communities, no likelihood for rediscovery, but possibility of restoration (e.g., American Chestnut Forest). GNA - Not applicable to the element at a global level. Includes Hybrids, Invasive species, species of Domestic Origin, Cultural communities, and communities that have been managed. GNR - Rank not assigned. GU - Unrankable. Possibly in peril range-wide but status uncertain; more information is needed. GX - Believed to be extinct throughout range (e.g., Passenger Pigeon) with virtually no likelihood that it will be rediscovered. For an ecological community, no restoration potential. G#G# - Rank with a range. Used to show the range of uncertainty, will not skip more than 1 rank. T-RANKS - T subranks are given to global ranks when a subspecies, variety, or race is considered at the state level. The subrank is made up of a "T" plus a number or letter (1, 2, 3, 4, 5, H, U, X) with the same ranking rules as a full species.

State Rank Codes - SRANK: Priority rank (1-5) based on number of occurrences through element’s range.

S1 - Critically imperiled, Extremely rare. Typically 5 or fewer estimated occurrences in the state, or only a few remaining individuals, may be especially vulnerable to extirpation. S2 - Imperiled, very rare. Typically between 5 and 20 estimated occurrences or with many individuals in fewer occurrences, often susceptible to becoming extirpated. S3 - Vulnerable, rare to uncommon. Typically between 21 and 100 estimated occurrences, may have fewer occurrences but with large number of individuals in some populations, may be susceptible to large-scale disturbances. S4 - Common, apparently secure under present conditions. Typically 100 or more estimated occurrences, but may be fewer with many large populations, may be restricted to only a portion of the state, usually not susceptible to immediate threats. S5 - Demonstrably widespread, common, and secure in the state and essentially ineradicable under present conditions. SA - Accidental. SH - Historically known from the state, but not verified for an extended period, usually 15 years. SU - Unrankable, not assessed. Possibly in peril in the state, but status uncertain, more information is needed. When possible, the most likely rank is assigned and a question mark is added to show uncertainty. SX - Apparently extirpated from state. SNR - Unranked. The state rank not yet assessed. SRF - Reported falsely in the state. SE - Exotic for local area. SZ - Birds that migrate through the state but have no identifiable location. S#S# - State level of G#G#.

TC5191468.11s Page 19 of 56 Endangered Species Codes, (Continued...)

General Ranking Notes

Q - A "Q" in the global rank indicates the element’s taxonomic classification as a species is a matter of conjecture among scientists. A - Accidental - far outside usual range C - Captive or Cultivated only HYB - Element represents an interspecific hybrid, not a species R - Reported but not confirmed Z - Zero Occurrences

Breeding Status Qualifiers (animals only) B - Breeding population of the element N - Nonbreeding population of the element M - Migrant population

TC5191468.11s Page 20 of 56 TC5191468.11s Page 21 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

A1 Denver Court Historic District SSE Roughly bounded by Aves. S1/2 and U1/2, 43rd and 52nd Sts. USHDCNP00017439 1/8-1/4 mi Galveston, TX National Register of Hist. Places 820 Ref #: 01001471 Multiple Property Name: Not Reported County: Galveston Restricted: Not Reported Certification: LISTED IN THE NATIONAL REGISTER Certification Date: 20020114 Type: District # of Contrib Bldgs: 389 # of Contrib Sites: Not Reported # of Contrib Objects: Not Reported # of Contrib Structs: Not Reported Documents: https://npgallery.nps.gov/AssetDetail/NRIS/01001471

A2 Denver Court Historic District SSE Roughly bounded by Aves. S1/2 and U1/2, 43rd and 52nd Sts. TXP201600000462 1/8-1/4 mi Galveston, TX TX National Reg Districts 825 Ref #: 01001471 County: Galveston Multiple Property Name: Not Reported Date Listed: 20020114

B3 Cedar Lawn Historic District North Bounded by 45th. St., 48th St., Ave. L, and Ave. N, TXP201600000460 1/4-1/2 mi Galveston, TX TX National Reg Districts 2511 Ref #: 02001570 County: Galveston Multiple Property Name: Not Reported Date Listed: 20021220

B4 Cedar Lawn Historic District North Bounded by 45th. St., 48th St., Ave. L, and Ave. N, USHDCNP00017437 1/4-1/2 mi Galveston, TX National Register of Hist. Places 2517

TC5191468.11s Page 22 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

Ref #: 02001570 Multiple Property Name: Not Reported County: Galveston Restricted: Not Reported Certification: LISTED IN THE NATIONAL REGISTER Certification Date: 20021220 Type: District # of Contrib Bldgs: 98 # of Contrib Sites: Not Reported # of Contrib Objects: Not Reported # of Contrib Structs: Not Reported Documents: https://npgallery.nps.gov/AssetDetail/NRIS/02001570

5 Burnet, David G. SW Not Reported TXHM20160001787 1/2-1 mi GALVESTON, TX 77551 TX Historical Markers 3487 Atlas #: 5167000261

C6 Young, Rev. Henry P. SW Not Reported TXHM20160000113 1/2-1 mi GALVESTON, TX 77551 TX Historical Markers 3527 Atlas #: 5167011598

C7 Austin, William Tennant SW Not Reported TXHM20160006310 1/2-1 mi GALVESTON, TX 77551 TX Historical Markers 3527 Atlas #: 5167009927

8 Lakeview SW Not Reported TXC201600010095 1/2-1 mi Not Reported TX Cemeteries 3558

TC5191468.11s Page 23 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

Cemetery ID: GV-C007 Type: cemetery Additional Info: Not Reported

9 Nicholas D. Labadie NNE Not Reported TXHM20160010278 1/2-1 mi GALVESTON, TX 77550 TX Historical Markers 4018 Atlas #: 5167012908

D10 Hebrew Benevolent NNE Not Reported TXC201600010063 1/2-1 mi Not Reported TX Cemeteries 4185 Cemetery ID: GV-C032 Type: Cemetery Additional Info: Not Reported

E11 Galveston Municipal SW Not Reported TXC201600010100 1/2-1 mi Not Reported TX Cemeteries 4197 Cemetery ID: GV-C005 Type: cemetery Additional Info: Not Reported

D12 Old Hitchcock NNE Not Reported TXC201600010062 1/2-1 mi Not Reported TX Cemeteries 4301 Cemetery ID: GV-C015 Type: Not Reported Additional Info: Not Reported

TC5191468.11s Page 24 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

G13 Catholic Cemetery,.Old NNE Not Reported TXC201600010061 1/2-1 mi Not Reported TX Cemeteries 4413 Cemetery ID: GV-C051 Type: Not Reported Additional Info: Not Reported

D14 Evergreen NNE Not Reported TXC201600010059 1/2-1 mi Not Reported TX Cemeteries 4453 Cemetery ID: GV-C053 Type: Not Reported Additional Info: Not Reported

F15 Greek SW Not Reported TXC201600010097 1/2-1 mi Not Reported TX Cemeteries 4566 Cemetery ID: GV-C003 Type: Not Reported Additional Info: Not Reported

16 Beth Jacob SW Not Reported TXC201600010102 1/2-1 mi Not Reported TX Cemeteries 4566 Cemetery ID: GV-C004 Type: cemetery Additional Info: Not Reported

G17 City NNE Not Reported TXC201600010057 1/2-1 mi TX Cemeteries 4614

TC5191468.11s Page 25 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

Not Reported

Cemetery ID: GV-C006 Type: cemetery Additional Info: Not Reported

18 Borden, Thomas Henry NE Not Reported TXHM20160001897 1/2-1 mi GALVESTON, TX 77550 TX Historical Markers 4615 Atlas #: 5167000226

G19 Episcopal Cemetery Galveston NNE Not Reported TXC201600010060 1/2-1 mi Not Reported TX Cemeteries 4634 Cemetery ID: GV-C025 Type: Not Reported Additional Info: Not Reported

E20 Hebrew Cemetery #1 SW Not Reported TXC201600010106 1/2-1 mi Not Reported TX Cemeteries 4670 Cemetery ID: GV-C031 Type: cemetery Additional Info: Not Reported

E21 Congregation B’nai Israel SW Not Reported TXC201600010105 1/2-1 mi Not Reported TX Cemeteries 4671 Cemetery ID: GV-C061 Type: cemetery Additional Info: Not Reported

TC5191468.11s Page 26 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

I22 City NNE Not Reported TXC201600010058 1/2-1 mi Not Reported TX Cemeteries 4691 Cemetery ID: GV-C006 Type: cemetery Additional Info: Not Reported

Evergreen Not Reported Not Reported

Cemetery ID: GV-C053 Type: Not Reported Additional Info: Not Reported

F23 Calvary Catholic WSW Not Reported TXC201600010092 1/2-1 mi Not Reported TX Cemeteries 4700 Cemetery ID: GV-C002 Type: Not Reported Additional Info: Not Reported

H24 Baden-Sproule House ENE Not Reported TXHM20160001877 1/2-1 mi GALVESTON, TX 77550 TX Historical Markers 4791 Atlas #: 5167000058

25 Smith, John, House NE Not Reported TXHM20160006125 1/2-1 mi GALVESTON, TX 77550 TX Historical Markers 4802 Atlas #: 5167007187

26 SW TXHM20160005419 1/2-1 mi TX Historical Markers 4957

TC5191468.11s Page 27 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

Italian Vault, The Not Reported GALVESTON, TX 77551

Atlas #: 5167007497

H27 Williams, Samuel May, House ENE 361 Ave. P TXX201600000577 1/2-1 mi Galveston, TX 77550 TX National Reg Properties 4977 Multiple Property Name: Not Reported

I28 Sherman, Catherine Isabel Cox NNE Not Reported TXHM20160000734 1/2-1 mi GALVESTON, TX 77550 TX Historical Markers 5149 Atlas #: 5167007182

29 Trueheart, John Overton NNE Not Reported TXHM20160009662 1/2-1 mi GALVESTON, TX 77550 TX Historical Markers 5160 Atlas #: 5167011583

J30 Williams-Tucker House NE Not Reported TXHM20160000093 1/2-1 mi GALVESTON, TX 77550 TX Historical Markers 5249 Atlas #: 5167011596

J31 NE TXHM20160000073 1/2-1 mi TX Historical Markers 5249

TC5191468.11s Page 28 of 56 HISTORIC SITES MAP FINDINGS

Map ID Direction Distance EDR ID Distance (ft.) Database

Williams, Samuel May Not Reported GALVESTON, TX 77550

Atlas #: 5167011594

TC5191468.11s Page 29 of 56 UNMAPPABLE HISTORIC SITES

Due to poor or inadequate address information, the following sites were not mapped: Status EDR ID Database

SS SELMA (steamship) Unmappable Address Restricted 93001449 Galveston, TX National Register of Hist. Places

Ref #: 93001449 Multiple Property Name: Not Reported County: Galveston Restricted: X Certification: LISTED IN THE NATIONAL REGISTER Certification Date: 19940105 Type: Site # of Contrib Bldgs: 0 # of Contrib Sites: 1 # of Contrib Objects: 0 # of Contrib Structs: 0 Documents: https://npgallery.nps.gov/AssetDetail/NRIS/93001449

USS HATTERAS (41GV68) Unmappable Address Restricted 77001567 Galveston, TX National Register of Hist. Places

Ref #: 77001567 Multiple Property Name: Not Reported County: Galveston Restricted: X Certification: LISTED IN THE NATIONAL REGISTER Certification Date: 19770128 Type: Site # of Contrib Bldgs: 0 # of Contrib Sites: 1 # of Contrib Objects: 1 # of Contrib Structs: 0 Documents: https://npgallery.nps.gov/AssetDetail/NRIS/77001567

TC5191468.11s Page 30 of 56 TC5191468.11s Page 31 of 56 FLOOD PLAIN MAP FINDINGS

Source: FEMA FIRM Flood Data, FEMA Q3 Flood Data

Flood Panel Number FEMA Source Type

Flood Plain panel at target property: 4854690022E (FEMA FIRM Flood data)

Additional Flood Plain panel(s) in search area: 4854690026E (FEMA FIRM Flood data) 4854690024E (FEMA FIRM Flood data) 4854690028E (FEMA FIRM Flood data)

TC5191468.11s Page 32 of 56 55

11 33 66

TC5191468.11s Page 33 of 56 WETLANDS MAP FINDINGS

Source: Fish and Wildlife Service NWI data

NWI hardcopy map at target property: Galveston Additional NWI hardcopy map(s) in search area: Not reported in source data

Map ID Direction Distance Distance (ft.) Code and Description* Database

1 M2USP NWI SSE [M] Marine [2] Intertidal [US] Unconsolidated Shore [P] Irregularly Flooded 1/2-1 mi 3101 Lat/Lon: 29.274206 / -94.812683

2 M2USN NWI SSE [M] Marine [2] Intertidal [US] Unconsolidated Shore [N] Regularly Flooded 1/2-1 mi 3142 Lat/Lon: 29.273893 / -94.813004

3 M1UBL NWI SSE [M] Marine [1] Subtidal [UB] Unconsolidated Bottom [L] Subtidal 1/2-1 mi 3231 Lat/Lon: 29.273531 / -94.813148

4 M2USP NWI ESE [M] Marine [2] Intertidal [US] Unconsolidated Shore [P] Irregularly Flooded 1/2-1 mi 3434 Lat/Lon: 29.276363 / -94.808891

5 M2USP NWI ESE [M] Marine [2] Intertidal [US] Unconsolidated Shore [P] Irregularly Flooded 1/2-1 mi 4047 Lat/Lon: 29.278067 / -94.805923

6 PEM1Fx NWI SSW [P] Palustrine [EM] Emergent [1] Persistent [F] Semipermanently Flooded [x] Excavated 1/2-1 mi 4111 Lat/Lon: 29.271437 / -94.824387

7 M2USP NWI SSW [M] Marine [2] Intertidal [US] Unconsolidated Shore [P] Irregularly Flooded 1/2-1 mi 5044 Lat/Lon: 29.268171 / -94.823181

*See Wetland Classification System for additional information. TC5191468.11s Page 34 of 56 WETLANDS CLASSIFICATION SYSTEM

National Wetland Inventory Maps are produced by the U.S. Fish and Wildlife Service, a sub-department of the U.S. Department of the Interior. In 1974, the U.S. Fish and Wildlife Service developed a criteria for wetland classification with four long range objectives:

· to describe ecological units that have certain homogeneous natural attributes, · to arrange these units in a system that will aid decisions about resource management, · to furnish units for inventory and mapping, and · to provide uniformity in concepts and terminology throughout the U.S.

High altitude infrared photographs, soil maps, topographic maps and site visits are the methods used to gather data for the productions of these maps. In the infrared photos, wetlands appear as different colors and these wetlands are then classified by type. Using a hierarchical classification, the maps identify wetland and deepwater habitats according to:

· system · subsystem · class · subclass · modifiers

(as defined by Cowardin, et al. U.S. Fish and Wildlife Service FWS/OBS 79/31. 1979.)

The classification system consists of five systems:

1. marine 2. estuarine 3. riverine 4. lacustrine 5. palustrine

The marine system consists of deep water tidal habitats and adjacent tidal wetlands. The riverine system consists of all wetlands contained within a channel. The lacustrine systems includes all nontidal wetlands related to swamps, bogs & marshes. The estuarine system consists of deepwater tidal habitats and where ocean water is diluted by fresh water. The palustrine system includes nontidal wetlands dominated by trees and shrubs and where salinity is below .5% in tidal areas. All of these systems are divided in subsystems and then further divided into class.

National Wetland Inventory Maps are produced by transferring gathered data on a standard 7.5 minute U.S.G.S. topographic map. Approximately 52 square miles are covered on a National Wetland Inventory map at a scale of 1:24,000. Electronic data is compiled by digitizing these National Wetland Inventory Maps.

TC5191468.11s Page 35 of 56 SYSTEM MARINE

SUBSYSTEM 1 - SUBTIDAL 2 - INTERTIDAL

CLASS RB-ROCK UB-UNCONSOLIDATED AB-AQUATIC BED RF-REEF OW-OPEN WATER / AB-AQUATIC BED RF-REEF RS-ROCKY SHORE US-UNCONSOLIDATED BOTTOM BOTTOM Unknown Bottom SHORE

Subclass 1 Bedrock 1 Cobble-Gravel 1 Algal 1 Coral 1 Algal 1 Coral 1 Bedrock 1 Cobble-Gravel 2 Rubble 2 Sand 3 Rooted Vascular 3 Worm 3 Rooted Vascular 3 Worm 2 Rubble 2 Sand 3 Mud 5 Unknown 5 Unknown Submergent 3 Mud 4 Organic Submergent 4 Organic

SYSTEM E - ESTUARINE

SUBSYSTEM 1 - SUBTIDAL

CLASS RB-ROCK UB-UNCONSOLIDATED AB-AQUATIC BED RF-REEF OW-OPEN WATER / BOTTOM BOTTOM Unknown Bottom

Subclass 1 Bedrock 1 Cobble-Gravel 1 Algal 2 Mollusk 2 Rubble 2 Sand 3 Rooted Vascular 3 Worm 3 Mud 4 Floating Vascular 4 Organic 5 Unknown Submergent 6 Unknown Surface SUBSYSTEM 2 - INTERTIDAL

CLASS AB-AQUATIC BED RF-REEF SB - STREAMBED RS-ROCKY SHORE US-UNCONSOLIDATED EM-EMERGENT SS-SCRUB SHRUB FO-FORESTED SHORE

TC5191468.11s Page36 of56 Subclass 1 Algal 2 Mollusk 1 Cobble- Gravel 1 Bedrock 1 Cobble- Gravel 1 Persistent 1 Broad-Leaved 1 Broad-Leaved 3 Rooted Vascular 3 Worm 2 Sand 2 Rubble 2 Sand 2 Nonpersistent Deciduous Deciduous 4 Floating Vascular 3 Mud 3 Mud 2 Needle-Leaved 2 Needle-Leaved 5 Unknown Submergent 4 Organic 4 Organic Deciduous Deciduous 6 Unknown Surface 3 Broad-Leaved 3 Broad-Leaved Evergreen Evergreen 4 Needle-Leaved 4 Needle-Leaved Evergreen Evergreen 5 Dead 5 Dead 6 Deciduous 6 Deciduous 7 Evergreen 7 Evergreen SYSTEM R - RIVERINE

SUBSYSTEM 1 - TIDAL 2 - LOWER PERENNIAL 3 - UPPER PERENNIAL 4 - INTERMITTENT 5 - UNKNOWN PERENNIAL

CLASS RB-ROCK UB-UNCONSOLIDATED *SB-STREAMBED AB-AQUATIC BED RS-ROCKY US-UNCONSOLIDATED **EM-EMERGENT OW-OPEN WATER/ BOTTOM BOTTOM SHORE SHORE Unknown Bottom

Subclass 1 Bedrock 1 Cobble-Gravel 1 Bedrock 1 Algal 1 Bedrock 1 Cobble-Gravel 2 Nonpersistent 2 Rubble 2 Sand 2 Rubble 2 Aquatic Moss 2 Rubble 2 Sand 3 Mud 3 Cobble-Gravel 3 Rooted Vascular 3 Mud 4 Organic 4 Sand 4 Floating Vascular 4 Organic 5 Mud 5 Unknown Submergent 5 Vegetated 6 Organic 6 Unknown Surface 7 Vegetated

* STREAMBED is limited to TIDAL and INTERMITTENT SUBSYSTEMS, and comprises the only CLASS in the INTERMITTENT SUBSYSTEM. **EMERGENT is limited to TIDAL and LOWER PERENNIAL SUBSYSTEMS.

SYSTEM L - LACUSTRINE

SUBSYSTEM 1 - LIMNETIC

CLASS RB-ROCK UB-UNCONSOLIDATED AB-AQUATIC BED OW-OPEN WATER/ BOTTOM BOTTOM Unknown Bottom Subclass 1 Bedrock 1 Cobble-Gravel 1 Algal 2 Rubble 2 Sand 2 Aquatic Moss 3 Mud 3 Rooted Vascular 4 Organic 4 Floating Vascular 5 Unknown Submergent 6 Unknown Surface

SUBSYSTEM 2 - LITTORAL TC5191468.11s Page37 of56

CLASS RB-ROCK UB-UNCONSOLIDATED AB-AQUATIC RS-ROCKY US-UNCONSOLIDATED EM-EMERGENT OW-OPEN WATER/ BOTTOM BOTTOM BED SHORE SHORE Unknown Bottom

Subclass 1 Bedrock 1 Cobble-Gravel 1 Algal 1 Bedrock 1 Cobble-Gravel 2 Nonpersistent 2 Rubble 2 Sand 2 Aquatic Moss 2 Rubble 2 Sand 3 Mud 3 Rooted Vascular 3 Mud 4 Organic 4 Floating Vascular 4 Organic 5 Unknown Submergent 5 Vegetated 6 Unknown Surface

SUBSYSTEM P - PALUSTRINE

CLASS RB--ROCK UB--UNCONSOLIDATED AB-AQUATIC BED US--UNCONSOLIDATED ML--MOSS- EM--EMERGENT SS--SCRUB-SHRUB FO--FORESTED OW-OPEN WATER/ BOTTOM BOTTOM SHORE LICHEN Unknown Bottom

Subclass 1 Bedrock 1 Cobble-Gravel 1 Algal 1 Cobble-Gravel 1 Moss 1 Persistent 1 Broad-Leaved 1 Broad-Leaved 2 Rubble 2 Sand 2 Aquatic Moss 2 Sand 2 Lichen 2 Nonpersistent Deciduous Deciduous 3 Mud 3 Rooted Vascular 3 Mud 2 Needle-Leaved 2 Needle-Leaved 4 Organic 4 Floating Vascular 4 Organic Deciduous Deciduous 5 Unknown 5 Vegetated 3 Broad-Leaved 3 Broad-Leaved Submergent Evergreen Evergreen 6 Unknown Surface 4 Needle-Leaved 4 Needle-Leaved Evergreen Evergreen 5 Dead 5 Dead 6 Deciduous 6Deciduous 7 Evergreen 7 Evergreen

MODIFIERS

In order to more adequately describe wetland and deepwater habitats one or more of the water regime, water chemistry, soil, or special modifiers may be applied at the class or lower level in the hierarchy. The farmed modifier may also be applied to the ecological system.

WATER REGIME WATER CHEMISTRY SOIL SPECIAL MODIFIERS

Non-Tidal Tidal Coastal Halinity Inland Salinity pH Modifiers for all Fresh Water A Temporarily Flooded H Permanently Flooded K Artificially Flooded *S Temporary-Tidal 1 Hyperhaline 7 Hypersaline g Organic b Beaver B Saturated J Intermittently Flooded L Subtidal *R Seasonal-Tidal 2 Euhaline 8 Eusaline a Acid n Mineral d Partially Drained/Ditched C Seasonally Flooded K Artificially Flooded M Irregularly Exposed *T Semipermanent -Tidal 3 Mixohaline (Brackish) 9 Mixosaline t Circumneutral f Farmed D Seasonally Flooded/ W Intermittently N Regularly Flooded V Permanent -Tidal 4 Polyhaline 0 Fresh i Alkaline h Diked/Impounded Well Drained Flooded/Temporary P Irregularly Flooded U Unknown 5 Mesohaline r Artificial Substrate E Seasonally Flooded/ Y Saturated/Semipermanent/ 6 Oligohaline s Spoil Saturated Seasonal 0 Fresh x Excavated F Semipermanently Z Intermittently *These water regimes are only used in Flooded Exposed/Permanent tidally influenced, freshwater systems. G Intermittently U Unknown

TC5191468.11s Page38 of56 Exposed

Source: U.S. Department of the Interior Fish and Wildlife Service National Wetlands Inventory 1 38 kV

TC5191468.11s Page 39 of 56 FCC & FAA SITES MAP FINDINGS TOWERS

Map ID Direction Distance EDR ID Distance (ft.) Database

1 DOF161200280291 NW FAA DOF 1/4-1/2 mi 1498

Obstacle #: 48-001334 Obstacle Type: TOWER Quantity: 1 Ft Above Ground: 170 Ft Above Sea Level: 177 Verification Status: Verified Lighting: Unknown Horizontal Accuracy: Unknown Vertical Accuracy: Unknown Markings: Unknown Action: Change Action Date: 2014138

2 ANT130000069136 NE ANTREG 1/4-1/2 mi 1842

Registration #: 1221180 File #: A0744092 Issue Date: 12/13/2011 Entity: STC Two LLC Height: 45.7 Address: 4411 1/2 Avenue P 1/2 B FAA Study: 2009-ASW-4069-OE FAA Circular: Not Reported License ID: L01050823 Contact Name: Not Reported Contact Address: 6391 Sprint Parkway Contact City: Overland Park Contact State: KS Contact Zip: 66251 ASR Search: http://wireless2.fcc.gov/UlsApp/AsrSearch/asrRegistrationSearch.jsp

This record is for a license, and it may or may not indicate a site which has been built.

TC5191468.11s Page 40 of 56 FCC & FAA SITES MAP FINDINGS TOWERS

Map ID Direction Distance EDR ID Distance (ft.) Database

3 DOF161200280293 NNE FAA DOF 1/4-1/2 mi 2402

Obstacle #: 48-006105 Obstacle Type: TOWER Quantity: 1 Ft Above Ground: 166 Ft Above Sea Level: 176 Verification Status: Unverified Lighting: Unknown Horizontal Accuracy: Not Reported Vertical Accuracy: Not Reported Markings: Unknown Action: Add Action Date: 1976053

4 DOF161200280275 SSW FAA DOF 1/4-1/2 mi 2431

Obstacle #: 48-001201 Obstacle Type: BLDG Quantity: 1 Ft Above Ground: 151 Ft Above Sea Level: 166 Verification Status: Verified Lighting: Unknown Horizontal Accuracy: +/- 250 ft Vertical Accuracy: +/- 50 ft Markings: Unknown Action: Change Action Date: 2014138

TC5191468.11s Page 41 of 56 FCC & FAA SITES MAP FINDINGS TOWERS

Map ID Direction Distance EDR ID Distance (ft.) Database

5 DOF161200280300 NNE FAA DOF 1/2-1 mi 3151

Obstacle #: 48-005656 Obstacle Type: TOWER Quantity: 1 Ft Above Ground: 160 Ft Above Sea Level: 170 Verification Status: Verified Lighting: None Horizontal Accuracy: +/- 500 ft Vertical Accuracy: +/- 50 ft Markings: None Action: Change Action Date: 2014138

TC5191468.11s Page 42 of 56 FCC & FAA SITES MAP FINDINGS AIRPORTS

EDR ID Database

ARPT015377 AIRPORTS Landing Facility Name: SAN LUIS RESORT Type: HELIPORT Owner Name: LANDRY’S INC. Owner Address: 1510 WEST LOOP SOUTH HOUSTON, TX 77027 Manager Name: TRACY E. VINCENT Manager Address: 8251 TRAVELAIR ST HOUSTON, TX 77061 Manager Phone: 713-515-1456 Elevation (ft): 10 Aeronautical Chart: HOUSTON

TC5191468.11s Page 43 of 56 FCC & FAA SITES MAP FINDINGS POWERLINES

EDR ID Database

2545 POWERLINES Voltage: 138 Range: Not Reported Hi voltage: 0 Volt cat: 70-138 kV Type: Alternating current Status: Active Corridor: Single line Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 4.0278418199999999

13767 POWERLINES Voltage: 69 Range: Not Reported Hi voltage: 0 Volt cat: 0-69 kV Type: Alternating current Status: Active Corridor: Multiple lines Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 2.2184591600000001

27206 POWERLINES Voltage: 69 Range: Not Reported Hi voltage: 0 Volt cat: 0-69 kV Type: Alternating current

TC5191468.11s Page 44 of 56 FCC & FAA SITES MAP FINDINGS POWERLINES

EDR ID Database

Status: Active Corridor: Multiple lines Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 2.3827885700000002

27208 POWERLINES Voltage: 138 Range: Not Reported Hi voltage: 0 Volt cat: 70-138 kV Type: Alternating current Status: Active Corridor: Multiple lines Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 4.7379821099999999

27079 POWERLINES Voltage: 138 Range: Not Reported Hi voltage: 0 Volt cat: 70-138 kV Type: Alternating current Status: Active Corridor: Multiple lines Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE

TC5191468.11s Page 45 of 56 FCC & FAA SITES MAP FINDINGS POWERLINES

EDR ID Database

Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 4.7379821099999999

2617 POWERLINES Voltage: 138 Range: Not Reported Hi voltage: 0 Volt cat: 70-138 kV Type: Alternating current Status: Active Corridor: Single line Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 1.93643853

2618 POWERLINES Voltage: 138 Range: Not Reported Hi voltage: 0 Volt cat: 70-138 kV Type: Alternating current Status: Active Corridor: Multiple lines Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: .14251511

TC5191468.11s Page 46 of 56 FCC & FAA SITES MAP FINDINGS POWERLINES

EDR ID Database

2619 POWERLINES Voltage: 138 Range: Not Reported Hi voltage: 0 Volt cat: 70-138 kV Type: Alternating current Status: Active Corridor: Multiple lines Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: .14251511

2544 POWERLINES Voltage: 69 Range: Not Reported Hi voltage: 0 Volt cat: 0-69 kV Type: Alternating current Status: Active Corridor: Single line Owner: Not Reported Owner id: Not Reported Num owners: Single Owner Operator: Not Reported Operator id: Not Reported Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 1.5881642499999999

2767 POWERLINES Voltage: 138 Range: Not Reported Hi voltage: 0 Volt cat: 70-138 kV Type: Alternating current

TC5191468.11s Page 47 of 56 FCC & FAA SITES MAP FINDINGS POWERLINES

EDR ID Database

Status: Active Corridor: Single line Owner: CenterPoint Energy Owner id: CENTRPNT Num owners: Single Owner Operator: CenterPoint Energy Houston Electric LLC Operator id: CPEHE Last owner: Not Reported Last own id: Not Reported Last oper: Not Reported Last oper id: Not Reported Mileage: 1.8511516100000001

TC5191468.11s Page 48 of 56 KEY CONTACTS & GOVERNMENT RECORDS SEARCHED

Various Federal laws and executive orders address specific environmental concerns. NEPA requires the responsible offices to integrate to the greatest practical extent the applicable procedures required by these laws and executive orders. EDR provides key contacts at agencies charged with implementing these laws and executive orders to supplement the information contained in this report.

NATURAL AREAS Wilderness Areas Government Records Searched in This Report FED_LAND: Federal Lands Source: USGS Telephone: 703-648-5094 Federal data from Bureau of Land Management, National Park Service, Forest Service, and Fish and Wildlife Service. - National Parks - Forests - Monuments - Wildlife Sanctuaries, Preserves, Refuges - Federal Wilderness Areas. Date of Government Version: 12/31/2005

US NWP: National Wilderness Preservation System This map layer consists of National Wilderness Preservation System areas of 320 acres or more, in the United States, Puerto Rico, and the U.S. Virgin Islands. Some established wilderness areas which are larger than 320 acres are not included in this map layer because their boundaries were not available from the owning or administering agency. Source: U.S. Geological Survey. Telephone: 888-275-8747

Federal Contacts for Additional Information National Park Service, Intermountain Region 12795 Alameda Parkway Denver, CO 80225 303-969-2500

USDA Forest Service, Southern 1720 Peachtree Road, N.W. Atlanta, GA 30367 404-347-2384

BLM- New Mexico State Office 1474 Rodeo Road Santa Fe, NM 87502-0115 505-438-7400

Fish & Wildlife Service, Fish & Wildlife Region 2 P.O. Box 1306 500 Gold Ave., S.W. Albuquerque, NM 87103 505-248-6925

TC5191468.11s Page 49 of 56 KEY CONTACTS & GOVERNMENT RECORDS SEARCHED

Wildlife Preserves, Sanctuaries and Refuges Government Records Searched in This Report FED_LAND: Federal Lands Source: USGS Telephone: 703-648-5094 Federal data from Bureau of Land Management, National Park Service, Forest Service, and Fish and Wildlife Service. - National Parks - Forests - Monuments - Wildlife Sanctuaries, Preserves, Refuges - Federal Wilderness Areas. Date of Government Version: 12/31/2005

TX Wildlife Management Areas: Wildlife Management Areas Wildlife management area locations in the state Source: Texas Parks and Wildlife Department. Telephone: 512-389-8744

US Critical Water Habitat: US Critical Water Habitat When a species is proposed for listing as endangered or threatened under the Endangered Species Act, the U.S. Fish and Wildlife Service must consider whether there are areas of habitat believed to be essential the species conservation. Those areas may be proposed for designation as critical habitat. Critical habitat is a term defined and used in the Act. Source: US Fish & Wildlife Services. Telephone: 970-226-9468

US ACEC: Areas of Critical Environmental Concern Designated Polygons The designated ACECs are "areas within the public lands where special management attention is required to protect and prevent irreparable damage to important historic, cultural, or scenic values, fish and wildlife resources or other natural systems of processes, or to protect life and safety from natural hazards Source: Bureau of Land Management. Telephone: 202-912-7352

US Critical Land Habitat: US Critical Land Habitat When a species is proposed for listing as endangered or threatened under the Endangered Species Act, the U.S. Fish and Wildlife Service must consider whether there are areas of habitat believed to be essential the species conservation. Those areas may be proposed for designation as critical habitat. Critical habitat is a term defined and used in the Act. Source: US Fish & Wildlife Services. Telephone: 970-226-9468

US NCED: National Conservation Easement Database NCED shows a comprehensive picture of privately owned conservation easement lands in the U.S. The NCED will allow better strategic planning for conservation and development by merging data on land protection with biodiversity and resources, improving ecological and economic plans and investments. Source: U.S Endowment for Forestry and Communities. Telephone: 202-621-1647

US Scenic River: National Wild and Scenic River System National Wild and Scenic Rivers System Source: USGS National Atlas and the Interagency Wild and Scenic River Coordinating Council. Telephone: 509-546-8333

Federal Contacts for Additional Information Fish & Wildlife Service, Fish & Wildlife Region 2 P.O. Box 1306 500 Gold Ave., S.W. Albuquerque, NM 87103 505-248-6925

State Contacts for Additional Information Dept. of Parks and Wildlife 512-389-4802

TC5191468.11s Page 50 of 56 KEY CONTACTS & GOVERNMENT RECORDS SEARCHED

Wild and scenic rivers Government Records Searched in This Report FED_LAND: Federal Lands Source: USGS Telephone: 703-648-5094 Federal data from Bureau of Land Management, National Park Service, Forest Service, and Fish and Wildlife Service. - National Parks - Forests - Monuments - Wildlife Sanctuaries, Preserves, Refuges - Federal Wilderness Areas. Date of Government Version: 12/31/2005

Federal Contacts for Additional Information Fish & Wildlife Service, Fish & Wildlife Region 2 P.O. Box 1306 500 Gold Ave., S.W. Albuquerque, NM 87103 505-248-6925

Endangered Species

Government Records Searched in This Report TX Endangered Species: TX Endangered Species Listing and recovery of endangered species in Texas is coordinated by the Wildlife Diversity Program. The Department Permitting Section is responsible for the issuance of permits for the handling of listed species. The listing includes those species which have been designated as threatened or endangered in Texas. The locations are referenced by Texas natural regions Source: Texas Parks and Wildlife. Telephone: 512-912-7011

Federal Endangered Species by County: Threatened and Endangered Species Listing Endangered, Threatened, Emergency Listing (Endangered), Emergency Listing (Threatened), Experimental Population (Essential), Experimental Population (Non-Essential), Similarity of Appearance (Endangered), Similarity of Appearance (Threatened). Source: US Fish and Wildlife Services. Telephone: 800-344-9453

Federal Contacts for Additional Information Fish & Wildlife Service, Fish & Wildlife Region 2 P.O. Box 1306 500 Gold Ave., S.W. Albuquerque, NM 87103 505-248-6925

State Contacts for Additional Information Conservation Data Center, The Nature Conservancy of Texas 210-224-8774

LANDMARKS, HISTORICAL, AND ARCHEOLOGICAL SITES Historic Places Government Records Searched in This Report National Register of Historic Places: The National Register of Historic Places is the official federal list of districts, sites, buildings, structures, and objects significant in American history, architecture, archeology, engineering, and culture. These contribute to an understanding of the historical and cultural foundations of the nation.

TC5191468.11s Page 51 of 56 KEY CONTACTS & GOVERNMENT RECORDS SEARCHED

The National Register includes: - All prehistoric and historic units of the National Park System; - National Historic Landmarks, which are properties recognized by the Secretary of the Interior as possessing national significance; and - Properties significant in American, state, or local prehistory and history that have been nominated by State Historic Preservation Officers, federal agencies, and others, and have been approved for listing by the National Park Service. Date of Government Version: 07/19/2015

TX Historic Markers: Historic Landmarks Historical markers commemorate diverse topics - from the history and architecture of houses, commercial and public buildings, religious congregations and events that changed the course of local and state history, to individuals who have made lasting contributions to our state, community organizations and businesses, military sites, etc. Source: Texas Historical Commission. Telephone: 512-463-6100

TX Cemeteries: Historic Landmarks This dataset includes cemeteries surveyed by the Texas Historical Commission (THC) and those recorded by USGS. Cemeteries are among the most valuable of historic resources. They are reminders of various settlement patterns, such as villages, rural communities, urban centers and ghost towns. Source: Texas Historical Commission. Telephone: 512-463-6100

TX Historic Sites: Historic Landmarks The database includes historic sites in Texas Source: Texas Historical Commission. Telephone: 512-463-6100

TX National Reg Properties: Historic Landmarks This data contains the Texas Historical Commission database of properties in Texas listed in the National Register of Historic Places Source: Texas Historical Commission. Telephone: 512-463-6100

TX National Reg Districts: Historic Landmarks This directory contains the Texas Historical Commission database of districts in Texas listed in the National Register of Historic Places Source: Texas Historical Commission. Telephone: 512-463-6100

Indian Reservations: Indian Reservations This map layer portrays Indian administered lands of the United States that have any area equal to or greater than 640 acres. Source: USGS. Telephone: 202-208-3710

Natchez Trace National Scenic Trail: Natchez Trace National Scenic Trail Source: Natchez Trace Parkway. Telephone: 800-305-7417

Potomac Heritage National Scenic Trail: Potomac Heritage National Scenic Trail Source: Potomac Heritage NST Office. Telephone: 304-535-4014

US Trails: US Trails This dataset contains a baseline inventory and condition assessment of all non-motorized trails on U.S. Fish and Wildlife Service lands as part of the National Trails Inventory Program conducted by the US Dept. of Transportation, Federal Highway Administration, Federal Lands Highway Division. Source: U.S. Fish and Wildlife. Telephone: 703-358-2205

TC5191468.11s Page 52 of 56 KEY CONTACTS & GOVERNMENT RECORDS SEARCHED

Federal Contacts for Additional Information Park Service; Advisory Council on Historic Preservation 1849 C Street NW Washington, DC 20240 Phone: (202) 208-6843

State Contacts for Additional Information Texas Historical Commission 512-463-6100

Indian Religious Sites Government Records Searched in This Report Indian Reservations: This map layer portrays Indian administrated lands of the United States that have any area equal to or greater than 640 acres. Source: USGS Phone: 888-275-8747 Date of Government Version: 12/31/2005

Federal Contacts for Additional Information Department of the Interior- Bureau of Indian Affairs Office of Public Affairs 1849 C Street, NW Washington, DC 20240-0001 Office: 202-208-3711 Fax: 202-501-1516

National Association of Tribal Historic Preservation Officers 1411 K Street NW, Suite 700 Washington, DC 20005 Phone: 202-628-8476 Fax: 202-628-2241

State Contacts for Additional Information A listing of local Tribal Leaders and Bureau of Indian Affairs Representatives can be found at: http://www.doi.gov/bia/areas/agency.html

FLOOD PLAIN, WETLANDS AND COASTAL ZONE

Flood Plain Management Government Records Searched in This Report Flood Zone Data: This data was obtained from the Federal Emergency Management Agency (FEMA). It depicts 100-year and 500-year flood zones as defined by FEMA. It includes the National Flood Hazard Layer (NFHL) which incorporates Flood Insurance Rate Map (FIRM) data and Q3 data from FEMA in areas not covered by NFHL. Source: FEMA Phone: 877-336-2627 Date of Government Version: 2003, 2015

Federal Contacts for Additional Information Federal Emergency Management Agency 877-3362-627

State Contacts for Additional Information Dept. of Public Safety, Div. Of Emergency Management 512-424-2138

TC5191468.11s Page 53 of 56 KEY CONTACTS & GOVERNMENT RECORDS SEARCHED

Wetlands Protection Government Records Searched in This Report NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002, 2005, 2010, and 2015 from the U.S. Fish and Wildlife Service. Source: U.S. Fish and Wildlife Service. Phone: 608-238-9333 Date of Government Version: 05/28/2015

State Wetlands Data: Wetland Inventory Source: Texas General Land Office Telephone: 512-463-0745

Federal Contacts for Additional Information Fish & Wildlife Service 813-570-5412

State Contacts for Additional Information Dept. of Parks & Wildlife 512-389-4802

Coastal Zone Management Government Records Searched in This Report CAMA Management Areas Dept. of Env., Health & Natural Resources 919-733-2293

Federal Contacts for Additional Information Office of Ocean and Coastal Resource Management N/ORM, SSMC4 1305 East-West Highway Silver Spring, Maryland 20910 301-713-3102

State Contacts for Additional Information General Land Office, Coastal Division 512-463-5054

Government Records Searched in This Report TX Coastal Zone Boundary General Land Office 512-463-5144

FCC & FAA SITES MAP For NEPA actions that come under the authority of the FCC, the FCC requires evaluation of Antenna towers and/or supporting structures that are to be equipped with high intensity white lights which are to be located in residential neighborhoods, as defined by the applicable zoning law.

Government Records Searched in This Report Cellular Federal Communications Commission 445 12th Street, SW Washington, DC 20554 888-225-5322

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Antenna Structure Registration Federal Communications Commission 445 12th Street, SW Washington, DC 20554 888-225-5322

AM Antenna Federal Communications Commission 445 12th Street, SW Washington, DC 20554 888-225-5322

FM Antenna Federal Communications Commission 445 12th Street, SW Washington, DC 20554 888-225-5322

FAA Digital Obstacle File Federal Aviation Administration (FAA) 1305 East-West Highway, Station 5631 Silver Sprinng, MD 20910-3281 Telephone: 301-713-2817 Describes known obstacles of interest to aviation users in the US. Used by the Federal Aviation Administration (FAA) and the National Oceanic and Atmospheric Administration to manage the National Airspace System.

Airport Landing Facilities Federal Aviation Administration Telephone (800) 457-6656 Private and public use landing facilities.

Electric Power Transmission Line Data PennWell Corporation This map includes information copyrighted by PennWell Corporation. This information is provided on a best effort basis and PennWell Corporation does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of PennWell.

Excessive Radio Frequency Emission For NEPA actions that come under the authority of the FCC, Commission actions granting construction permits, licenses to transmit or renewals thereof, equipment authorizations or modifications in existing facilities, require the determination of whether the particular facility, operation or transmitter would cause human exposure to levels of radio frequency in excess of certain limits.

Federal Contacts for Additional Information Office of Engineering and Technology Federal Communications Commission 445 12th Street SW Washington, DC 20554 Phone: 202-418-2470

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OTHER CONTACT SOURCES

NEPA Single Point of Contact State Contacts for Additional Information State Grants Team Governor’s Office of Budget & Planning P.O. Box 12428 Austin, TX 78711 512-305-9415

STREET AND ADDRESS INFORMATION

(c) 2015 TomTom North America, Inc. All rights reserved. This material is proprietary and the subject of copyright protection and other intellectual property rights owned by or licensed to TomTom North America, Inc. The use of this material is subject to the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material.

TC5191468.11s Page 56 of 56

APPENDIX G

Interview Documentation

GEOTECH ENGINEERING AND TESTING CONFIRMATION OF DISCUSSION OR TELEPHONE CONVERSATION RECORD GEOTECH ENGINEERING AND TESTING 17407 US Highway 59 Phone: 713-699-4000 Houston, Texas 77396 Fax: 713-699-9200

Job No.: 18-104E Date: March 12, 2018 Job Description: Phase I Environmental Site Assessment 49th Street paving improvement from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas

Person Telephone Calling Person Called Phone: E-Mail Fax No.: Person’s Name: Mr. Patrick Sanchez Fax: Yes No Company Name and Address: 49th Street/ residence

Subject: Environmental Concerns Regarding the Subject Project Site

Items Discussed: Mr. Patrick Sanchez lives in the area since 15 years ago. Mr. Patrick Sanchez mentioned that to the best of his knowledge, he has never heard of any environmental incidents or contamination at and/or around the project site.

By: Joseph Ali Signature: Circulate: Copies To:

Administrative Form No. 114 Revision: 12-11-03 File: Word\Data\Telephone CONFIRMATION OF DISCUSSION OR TELEPHONE CONVERSATION RECORD GEOTECH ENGINEERING AND TESTING 17407 US Highway 59 Phone: 713-699-4000 Houston, Texas 77396 Fax: 713-699-9200

Job No.: 18-104E Date: March 12, 2018 Job Description: Phase I Environmental Site Assessment 49th Street paving improvement from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas

Person Telephone Calling Person Called Phone: E-Mail Fax No.: Person’s Name: Mr. Richard Brentwood Fax: Yes No Company Name and Address: 49th Street/ residence

Subject: Environmental Concerns Regarding the Subject Project Site

Items Discussed: Mr. Richard Brentwood lives in the area. Mr. Richard Brentwood mentioned that to the best of his knowledge, he has never heard of any environmental incidents or contamination at and/or around the project site.

By: Joseph Ali Signature: Circulate: Copies To:

Job No.: 18-104E Date: March 12, 2018 Job Description: Phase I Environmental Site Assessment 49th Street paving improvement from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas

Person Telephone Calling Person Called Phone: E-Mail Fax No.: Person’s Name: Ms. Samantha Force Fax: Yes No Company Name and Address: Mc Donald’s 5223 Broadway Avenue J, Galveston Subject: Environmental Concerns Regarding the Subject Project Site

Items Discussed: Ms. Samantha Force is the cashier in Mc Donald’s. Ms. Samantha Force mentioned that to the best of her knowledge, she has never heard of any environmental incidents or contamination at and/or around the project site.

By: Joseph Ali Signature: Circulate: Copies To:

Job No.: 18-104E Date: March 12, 2018 Job Description: Phase I Environmental Site Assessment 49th Street paving improvement from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas

Person Telephone Calling Person Called Phone: E-Mail Fax No.: Person’s Name: Ms. Leona Reed Fax: Yes No Company Name and Address: Mc Donald’s 5223 Broadway Avenue J, Galveston Subject: Environmental Concerns Regarding the Subject Project Site

Items Discussed: Ms. Leona Reed is the regular consumer in Galveston Mc Donald’s. Ms. Leona Reed mentioned that to the best of her knowledge, she has never heard of any environmental incidents or contamination at and/or around the project site.

By: Joseph Ali Signature: Circulate: Copies To:

Job No.: 18-104E Date: March 12, 2018 Job Description: Phase I Environmental Site Assessment 49th Street paving improvement from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas

Person Telephone Calling Person Called Phone: E-Mail Fax No.: Person’s Name: Mr. Walter Collins Fax: Yes No Company Name and Address: 49th Street/ residence

Subject: Environmental Concerns Regarding the Subject Project Site

Items Discussed: Mr. Walter Collins lives in the area. Mr. Walter Collins mentioned that to the best of his knowledge, he has never heard of any environmental incidents or contamination at and/or around the project site.

By: Joseph Ali Signature: Circulate: Copies To:

Administrative Form No. 114 Revision: 12-11-03 File: Word\Data\Telephone

APPENDIX H

Credentials of Environmental Professionals

GEOTECH ENGINEERING AND TESTING YONGWAN (ALEX) KWON, P.E. CHIEF ENGINEER

SUMMARY

Mr. Kwon is an engineering manager at Geotech Engineering and Testing (GET) with the responsibility for daily operations of the environmental and geotechnical engineering department. He is involved in data analyses and the preparation of reports and recommendations. He has over 13 years of experience in the field of environmental and geotechnical engineering. His environmental engineering experience is related to residential and commercial developments, educational facilities, roads, parks, underground utilities, buildings, flood control channels, community centers, and airports. His other experience includes groundwater and soil contamination modeling.

PROFESSIONAL REGISTRATION

Licensed Professional Engineer

EDUCATION

2009 M.S. – University of Florida, Gainesville, Florida

1998 M.S. – Hanyang University, Seoul, Korea

1996 B.S. – Hanyang University, Seoul, Korea

EXPERIENCE

2000 – 2007 Korea Institute Construction Technology

2010 – Present Geotech Engineering and Testing – Houston, Texas Engineering Manager

AMMAR (JOSEPH) ALI. Ph. D. PROJECT MANAGER

SUMMARY

Mr. Ammar (Joseph) Ali is a project manager at Geotech Engineering and Testing (GET) with the responsibility for the daily operations of environmental and geotechnical explorations, data analysis and the preparation of report recommendations. His environmental engineering experience is related to public infrastructure residential, commercial developments, educational facilities, roads, underground utilities and buildings. In addition, he has experience in groundwater flow modeling and contamination transport modelling. Mr. Ali actively involved in environmental site assessment projects, including Phase I Environmental Site Assessment Studies.

EDUCATION

2018 Doctors of Science (Ph. D.) in Civil Engineering – New Mexico State University, Las Cruces, New Mexico

2011 Masters of Science (M.S.) in Civil Engineering – University Technology of Malaysia, Johor, Malaysia

2004 Bachelors of Science (B. Sc.) in Civil Engineering – University of Technology, Baghdad, Iraq

EXPERIENCE

2017 – Present Geotech Engineering and Testing – Houston, Texas Project Manager

GEOTECH ENGINEERING AND TESTING

DESKTOP GEOLOGIC FAULT STUDY AND GEOTECHNICAL STUDY 49TH STREET PAVING IMPROVEMENTS FROM AVENUE ‘P’ TO AVENUE ‘S½’ CITY OF GALVESTON, TEXAS

PROJECT NO. 18-105E

STANTEC CONSULTING SERVICES INC. HOUSTON, TEXAS

GEOTECH ENGINEERING AND TESTING

SERVICING

TEXAS, LOUISIANA, NEW MEXICO, OKLAHOMA

www.geotechen g.com

MAY 2018

TEXAS BOARD OF PROFESSIONAL ENGINEERS REGISTRATION NUMBER F-001183

ACCREDITED CERTIFICATE #0075-01 GEOTECH ENGINEERING and TESTING #0075-02

Geotechnical, Environmental, Construction Materials, and Forensic Engineering

Stantec Consulting Services, Inc. Project No. 18-105E 580 Westlake Park Boulevard, Suite 1000 Report No. 1 Houston, Texas 77079 Report Type: 24C May 21, 2018 Attention: Mr. Robert Moser, P.E.

DESKTOP GEOLOGIC FAULT STUDY AND GEOTECHNICAL STUDY 49TH STREET PAVING IMPROVEMENTS FROM AVENUE ‘P’ TO AVENUE ‘S½’ CITY OF GALVESTON, TEXAS

Gentlemen:

Submitted here is Geotech Engineering and Testing (GET) geotechnical study of subsurface condition for the above referenced project. The planned paving improvements were discussed in detail with Mr. Robert Moser, P.E. in order to plan a study that would provide the necessary design and construction recommendations. This study was conducted in general accordance with GET Proposal No. P17-237, dated November 14, 2017 and authorized by Mr. Robert Moser, P.E. on February 14, 2018.

This report presents the results of our geotechnical field exploration and laboratory testing together with recommendations for the design and construction of the proposed 49th Street Paving Improvements project. Our recommendations are in general accordance with the City of Galveston Standard Construction Specifications.

17407 US Highway 59 North • Houston, Texas 77396 • Tel.: 713-699-4000 • Fax: 713-699-9200 Texas • Louisiana • New Mexico • Oklahoma Website: www.geotecheng.com

TABLE OF CONTENTS

Page

1.0 EXECUTIVE SUMMARY ...... 1

2.0 INTRODUCTION ...... 3

3.0 DESKTOP GEOLOGIC FAULT STUDY ...... 3

4.0 FIELD EXPLORATION ...... 3 4.1 Pavement Coring ...... 3 4.2 Drilling and Sampling ...... 4

5.0 LABORATORY TESTS ...... 4 5.1 General ...... 4 5.2 Classification Tests ...... 4 5.3 Soil Sample Storage ...... 5

6.0 SITE GEOLOGY ...... 5

7.0 GENERAL SOILS AND DESIGN CONDITIONS ...... 5 7.1 Site Conditions ...... 5 7.2 Soil Stratigraphy ...... 5 7.3 Soil Properties ...... 6 7.4 Water-Level Measurements ...... 6

8.0 UNDERGROUND UTILITIES ...... 7 8.1 General ...... 7 8.2 Open Excavation Method ...... 7 8.3 Augering and Augering Pits Method ...... 8 8.3.1 Sewer Lines ...... 8 8.4 Groundwater Control ...... 8 8.4.1 General ...... 8 8.4.2 Dewatering Technique ...... 8 8.5 OSHA Soil Classifications ...... 9 8.6 Excavations ...... 9 8.7 Lateral Earth Pressures ...... 9 8.8 Backfilling...... 9 8.8.1 Backfilling for Open-Excavation ...... 9 8.8.2 Backfilling for Auger Pits and Auger Holes ...... 10 8.9 Loads Imposed on Buried Pipes ...... 10 8.9.1 General ...... 10 8.9.2 Loads Due to Overburden Pressure ...... 10 8.9.3 Piping System Thrust Restraint ...... 11

9.0 PAVEMENT DESIGN ...... 11 9.1 General ...... 11

i GEOTECH ENGINEERING AND TESTING

9.2 Traffic Information ...... 12 9.3 Subgrade Stabilization ...... 12 9.4 Recommended Subgrade Design Values ...... 12 9.5 Flexible Pavement ...... 12

10.0 CONSTRUCTION CONSIDERATIONS ...... 13 10.1 Site Preparation ...... 13 10.2 Suitability of On-Site Soils for Use as Fill ...... 14 10.2.1 General ...... 14 10.2.2 Select Structural Fill ...... 15 10.2.3 Structural Fill...... 15 10.2.4 General Fill ...... 15 10.2.5 On-Site Fill Soil Classification ...... 15 10.3 Surface Water Drainage ...... 15 10.4 Earthwork ...... 16 10.4.1 General ...... 16 10.4.2. Improving Drainage ...... 16 10.4.3. Subgrade Drying ...... 16 10.4.4. Removal and Replacement ...... 16 10.4.5. Modification/Stabilization ...... 16 10.5 Construction Surveillance ...... 17

11.0 RECOMMENDED ADDITIONAL STUDIES ...... 18

12.0 STANDARD OF CARE ...... 18

13.0 REPORT DISTRIBUTION ...... 18

14.0 REFERENCE ...... 18

ii GEOTECH ENGINEERING AND TESTING

ILLUSTRATIONS

Plate

Site Vicinity Map 1 Proposed Alignment for 49th Street Paving Improvement 2 Faults in the Galveston and Harris County Area 3 Existing Pavement Thickness 4 Lateral Earth Pressure Diagram 5 Thrust Forces Acting on a Bend 6

APPENDICES

Appendix A – Plan of Borings, Soil Stratigraphy Profile, Logs of Borings, Key to Log Terms and Symbols and Summary of Laboratory Test Results Appendix B – Project Site Pictures Appendix C – OSHA Soil Classification Appendix D – Pavement Design Computations

iii GEOTECH ENGINEERING AND TESTING

1.0 EXECUTIVE SUMMARY

It is planned for paving improvements along 49th Street from Avenue ‘P’ to Avenue ‘S½’ in the City of Galveston, Texas. The length of paving improvement alignment for the 49th Street is approximately 2,275-ft. A site vicinity map is presented on Plate 1. We understand that the proposed paving improvement will consist of milling and replacing the existing asphalt pavement with asphalt pavement.

The subsoils and groundwater conditions were evaluated by conducting five (5) soil test borings (B-1 through B-5) along the project alignment to a depth of 25-ft below the existing grade. Results of our field investigation and engineering analyses are summarized below:

1. In general, based on our field exploration and laboratory testing data, the soil stratigraphy along the project alignment generally appears to be relative uniform. The soil stratigraphy along the project alignment is summarized as follows:

Stratum Range of No. Depth, ft. Soil Type ASPHALT PAVEMENT (2.0- to 3.0-inch in thickness) I 0.2 – 2 FILL: SILTY SAND (SM), brown, light brown, light gray, gray, with root fibers, gravels, shell II 2 – 25 SILTY SAND (SM), loose to dense, light brown, light gray, gray, with root fibers to 6’, shell, gravels

2. Depth to groundwater will be important for design and construction of the proposed storm sewers. Water level observations were made during and after about 0.5-hour of drilling. Our short-term field exploration indicates that groundwater was encountered at depths ranging between 6- to 8-ft during and after drilling in Borings B-1 through B-5.

3. We understand that open cut excavation or augering construction techniques will be used for the construction of underground utilities (storm sewers) installations. The bedding and backfill recommendations for the construction of the proposed underground utilities are also presented in this report.

4. In order to prevent intolerable movement and overstressing of the pipe, suitable thrust restraint should be provided. Use of restrained joints or thrust blocks is the typical methods of providing reaction for the thrust restraint.

5. The bedding and backfill for the auger pits should be conducted in accordance with the City of Galveston Standard Specifications, Section 02227 – Excavation and Backfill for Utilities and Section 02252 – Cement Stabilized Sand for backfill and bedding, respectively.

6. We understand that pavement will be used on this project. The pavement was designed on the basis of 1993 AASHTO Guide for Design of Pavement Structures as well as the City of Galveston Standard Specifications Section 02510, for the Approved and Acceptance of Infrastructure. Furthermore, the pavement will be designed as a major thoroughfare. A design ESAL of 0.6 × 106 was used in design for the proposed asphalt pavement. The recommended pavement component thicknesses are summarized as follows:

Project No. 18-105E 1 GEOTECH ENGINEERING AND TESTING

Base Course Subgrade Design, Design Asphalt (Crushed Stabilization ESAL x Structural Pavement Concrete) Thickness, 6 10 Number, SN Thickness, inch Thickness, inch inch

0.6 3.48 3.0 6.0 8.0

7. The type of subgrade stabilization will depend on the final grade elevation. Furthermore, the type and amount of stabilization should be evaluated once the final grade is reached. Subgrade preparation in pavement areas should specify compaction of the upper eight-inches to at least 95% of maximum standard Proctor density (ASTM D 698) at a moisture content with ±2% of optimum. Our field and laboratory tests indicate that the surficial soils consist of sandy silt soils. Depending on the type of soils encountered, lime-fly ash stabilization of the surficial soils should most likely be performed. The upper eight-inches of the soils should be lime-fly ash stabilized, using 2% lime and 8% fly-ash by dry weight. The application rates corresponding to these additive amounts would be 12 pounds of lime and 48 pounds of fly-ash per square yard, for eight-inches of compacted thickness. The amounts presented here in are estimate only. Higher amounts of lime-fly ash may have to be used if higher densities of subgrade soils are excavated at the time of construction. City of Galveston Specification Section 02242 can be used as a procedural guide for placing, mixing and compacting lime-fly ash stabilizer and soils.

In the event lime-fly ash is not available, cement can be used to stabilize the subgrade soils. Subgrade preparation using cement stabilization in pavement areas should specify compaction of the upper eight-inches to at least 95% of maximum standard Proctor density (ASTM D 698) at a moisture content between ±2% of the optimum value. The ratio of cement to soil will be based on dry material weight and shall be established by the Geotechnical Engineer in the field to provide the desired stability. The ratio of cement to soil should be generally about 8% percent by dry weight. City of Galveston Specification Section 02252 can be used as a procedural guide for placing, mixing and compacting cement stabilized soils. Higher amounts of cement may have to be used if higher densities of subgrade soils are excavated at the time of construction.

Project No. 18-105E 2 GEOTECH ENGINEERING AND TESTING

2.0 INTRODUCTION

It is planned for the paving improvements along 49th Street from Avenue ‘P’ to Avenue ‘S½’ in the City of Galveston, Texas. The length of paving improvement alignment for the 49th Street is approximately 2,275-ft. A site vicinity map is presented on Plate 1 and plate A-1 in Appendix A. The proposed alignment for paving improvements and underground utilities are presented on Plate 2. The specific project information is as follows:

Project Remarks Water/Storm Sewers The underground utilities will consist of water lines and storm sewer lines. We understand that the depth of the underground utilities will be less than 15-ft deep. The construction method will be either open excavation or augering. Paving The roadway will be about 2,275-ft long asphalt paving.

The scope of our work consisted of conducting a geotechnical study for the project alignment and developing recommendations with respect to design and construction of the pavement and underground utilities. Furthermore, the proposed paving improvement and underground utilities will be constructed in accordance to The City of Galveston Specifications (Ref. 1).

This report briefly describes the field exploration and laboratory testing followed by our engineering analyses and recommendations.

3.0 DESKTOP GEOLOGIC FAULT STUDY

Many faults have been observed within the Gulf Coast Region of Texas. In general, faults are caused by groundwater and oil removal from the underlying surface. Faults originate several thousand feet below the ground surface and can often cause displacement of the ground surface, causing broken pavement, ruptured utility lines, and damage to residential and commercial structures. A geologic fault map of the area is presented on Plate 3.

Our review of fault map indicates that there are no major active faults located at the project alignment. However, faults may be present that are absent from the published maps. The closest known fault to the project alignment is located approximately 11.0-miles to northwest of the project alignment. No special study of movement rates for any of this fault was attempted. A Phase I Geologic Fault study was not within the scope of this study.

4.0 FIELD EXPLORATION

4.1 Pavement Coring

The existing pavement was cored prior to drilling and sampling. The results of pavement coring show that the existing pavements generally consist of asphalt pavement. The existing pavement thicknesses are presented on Plate 4, and respective boring logs, Plates A-4 through A-8 in Appendix A. The pavement core locations were patched with Quickcrete.

Project No. 18-105E 3 GEOTECH ENGINEERING AND TESTING

4.2 Drilling and Sampling

The soil conditions were explored by conducting five (5) borings along the project alignment. During sampling, Locations of the borings were decided based on the discussion with Mr. David R. Frisbey (City of Galveston representative) and presented in Plate A-2, in Appendix A. Five (5) pavement corings were conducted prior to drilling and sampling in all the borings. Soil samples were obtained continuously at each boring location from the ground surface to 10-ft and at five-ft intervals thereafter to the completion depth of the borings at 25-ft.

Cohesionless soils were generally sampled with a split-spoon sampler driven in general accordance with the Standard Penetration Test (SPT), ASTM D 1586. This test is conducted by recording the number of blows required for a 140-pound weight falling 30-inches to drive the sampler 12-inches into the soil. Driving resistance for the SPT, expressed as blows per foot of sampler resistance (N), is tabulated on the boring logs.

Soil samples were examined and classified in the field. This data, together with a classification of the soils encountered and strata limits, is presented on the soil stratigraphy profile, Plate A-3 in Appendix A. The logs of borings are presented on Plates A-4 through A-8 in Appendix A. A key to log terms and symbols is shown on Plate A-9 in Appendix A.

Depth to groundwater will be important for design and construction of the proposed underground utility lines. For this reason, borings were drilled dry and the depth at which groundwater was first encountered was recorded. Water level observations made during and 0.5-hr after drilling in the borehole are indicated at the bottom portion of the individual logs. The boreholes were grouted with non-shrink grout using tremie method after the completion of the field work.

5.0 LABORATORY TESTS

5.1 General

Soil classifications and shear strengths were further evaluated by laboratory tests on representative samples of the major strata. The laboratory tests were performed in general accordance with ASTM Standards. Specifically, ASTM D 2487 is used for classification of soils for engineering purposes. Furthermore, summary of test results are presented in Plates A-10 through A-14 in Appendix A.

5.2 Classification Tests

As an aid to visual soil classifications, physical properties of the soils were evaluated by classification tests. The tests were conducted in general accordance with ASTM standards. These tests consisted of natural moisture content tests (ASTM D 4643), percent finer than the No. 200 sieve tests (ASTM D 1140). Similarity of these properties is indicative of uniform strength and compressibility characteristics for soils of essentially the same geological origin. Results of these tests are tabulated on the boring logs at respective sample depths.

Project No. 18-105E 4 GEOTECH ENGINEERING AND TESTING

5.3 Soil Sample Storage

Soil samples tested or not tested in the laboratory will be stored for a period of fourteen days subsequent to submittal of the final report. The samples will be discarded after this period, unless we are instructed otherwise.

6.0 SITE GEOLOGY

According to the soil survey of Harris County, Texas (prepared by the U.S. Department of Agriculture Soil and Conservation Service (1976), geologically the project areas at the proposed project alignment lies on the soil of BBBX – Bb – Beaches (BBBX).

BBBX – Bb – Beaches (BBBX) – This is in broad, nearly level to undulating, and nonsaline to extremely saline. It mainly consists of sandy marine deposits and varied amounts of shell fragments. It is reworked by both the tide and wind. It is barren. The lower areas are inundated daily by high tides. The higher areas are inundated regularly by spring tides. A high-water table is at or near the surface throughout the year.

It is on the land area immediately adjacent to the Gulf of Maxico from the mean tide to the back of the coastal dunes. The surface is plane in front of the dunes and is undulating within the dune area. The slopes range from as low as 0.2 percent in the area in front of the dunes to as high as about 15 percent on the side slopes of a few of the dunes. The mapped areas are long and narrow and range from 10 acres to about 100 acres.

7.0 GENERAL SOILS AND DESIGN CONDITIONS

7.1 Site Conditions

The project alignment is generally flat. Currently, the project alignment is asphalt paved. In general, the vicinity of the project alignment consists of residential facilities. Pictures of the project alignment were taken during our site visit. These pictures are presented on cover page and Appendix B.

7.2 Soil Stratigraphy

In general, based on our field exploration and laboratory testing data, the soil stratigraphy along the project alignment generally appears to be relative uniform. Details of subsoil conditions at each boring location along the project alignment are presented on the respective boring logs. In general, the soils can be grouped into two (2) major strata with depth limits and characteristics as follows:

Project No. 18-105E 5 GEOTECH ENGINEERING AND TESTING

Stratum Range of No. Depth, ft. Soil Description* ASPHALT PAVEMENT (2.0- to 5.0-inch in thickness) I 0.2 – 2 FILL: SILTY SAND (SM), brown, light brown, light gray, gray, with root fibers, gravels, shell II 2 – 25 SILTY SAND (SM), medium dense to dense, light brown, light gray, gray, with root fibers to 6’, shell, gravels

* Classification in general accordance with the modified Unified Soil Classification System (ASTM D 2487)

7.3 Soil Properties

Soil strength and how they relate to storm sewers and pavement design are summarized as follows:

Stratum No. Soil Type #200 Passing SPT Soil Expansivity Remarks I Fill: Silty Sand (SM) 11 – 24 – Non-Expansive Moisture Sensitive

II Silty Sand (SM) 02 – 45 11 – 38 Non-Expansive Moisture Sensitive

Legend: SPT = Standard Penetration Test

7.4 Water-Level Measurements

The soil borings were first drilled dry to evaluate the presence of perched or free-water conditions. The levels where free water was encountered in the open boreholes during and about 0.5-hour after drilling are shown on the boring logs. Our groundwater measurements are summarized below:

Groundwater Depth, ft. Groundwater Depth, ft. Boring Numbers (s) at the time of Drilling at 0.5 Hour Later B-1, B-2, and B-5 8 8 B-3 8 6 B-4 10 8

Fluctuations in groundwater generally occur as a function of seasonal moisture variation, temperature, groundwater withdrawal and future construction activities that may alter the surface drainage and subdrainage characteristics of this site.

An accurate evaluation of the hydrostatic water table in the relatively impermeable clays and low permeable silts/sands requires long term observation of monitoring wells and/or piezometers. It is not possible to accurately predict the pressure and/or level of groundwater that might occur based upon short-term site exploration.

We recommend that GET be immediately notified if a noticeable change in groundwater occurs from that mentioned in our report. We would be pleased to evaluate the effect of any groundwater changes on our design and construction sections of this report. Project No. 18-105E 6 GEOTECH ENGINEERING AND TESTING

8.0 UNDERGROUND UTILITIES

8.1 General

We understand that underground utilities installation along the alignment will include storm sewer lines. Furnished information indicated that the maximum invert depth of the underground utilities will be less than 15-ft. We understand that either open excavation or augering methods of construction will be used for the underground utility installations. Furthermore, the proposed underground utilities will be constructed in accordance to The City of Galveston Specifications (Ref. 1).

8.2 Open Excavation Method

The storm sewer lines shall be installed in accordance with The City of Galveston Specifications, Section 02720 – Storm Sewers.

The results of our field exploration and laboratory testing indicate that unsatisfactory soils for excavation, such as cohesionless soils exist in the borings. A summary of the unsatisfactory soils locations and depths are as follows:

Boring(s) Depth Range, ft. B-1 through B-5 0.2 to 25

If these conditions are encountered during the time of construction, suitable groundwater control measures should be implemented in accordance with The City of Galveston Specifications, Section 01563 – Control of Groundwater and Surface Water. Furthermore, the contractor may have to over excavate an additional 6 inches and remove unstable or unsuitable materials with approval by geotechnical engineer, then place an equal depth of cement stabilized sand.

Due to potential variability of the on-site soils, unstable trench conditions may still exist in the areas where we did not conduct borings. If these conditions are encountered during the time of construction, a stable trench should be provided to allow proper bedding and installation.

Sand backfill used in the cement-stabilized sand and sand backfill should be free of clay lumps, organic materials, or other deleterious substances, and with a PI less than 4 for the cement- stabilized sand and less than 7 for the sand backfill, and not more than 15% passing the No. 200 sieve. Cement stabilized sand should conform to The City of Galveston Specifications, Section 02252 – Cement Stabilized Sand.

Due to the presence of silty sands, relatively shallow groundwater table of corresponding hydrostatic pressure, the pipe should be restrained against movements by strapping over the pipe. The straps should be flat and strong enough to withstand the upward flow.

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8.3 Augering and Augering Pits Method

8.3.1 Sewer Lines

We understand that augering method is considered for the underground utility installations. The augering should be conducted in accordance with The City of Galveston Standard Specifications, Section 02317 – Augering Pipe for Water Lines. Augering should be started from approved pit locations. Excavation for pits and shoring installation should confirm The City of Galveston Standard Specifications, Section 02227 – Excavation and Backfill for Utilities. If the augering zone is within the cohesionless soils or caving soils, install casing as required by The City of Galveston Standard Specifications, Section 02317 – Augering Pipe for Water Lines. The augering near existing structures or utility lines should be conducted in accordance with The City of Galveston Standard Specifications.

Diameter of auger hole should not exceed pipe bell diameter plus 2 inches. The receiving pit distance should conform to the aforementioned City of Galveston Standard Specifications. A minimum spacing of 6-inch should be provided between the pipe and walls of bore pit. The maximum allowable width of pit shall be 5-ft unless approved by the engineer. Width of pit at surface shall not be less than the pit width at the bottom.

8.4 Groundwater Control

8.4.1 General

The invert depths for the underground utilities will be less than 15-ft. Our short-term field exploration indicates that groundwater was encountered at the time of drilling. Therefore, groundwater dewatering may be required. Fluctuations in groundwater can occur as a function of seasonal moisture variations. Groundwater control recommendations are presented in the following report sections.

8.4.2 Dewatering Technique

It is our opinion that groundwater should be lowered to a depth of at least three-ft below the deepest excavation grade in order to provide dry working conditions and firm bedding. Any minor water inflow in cohesive soil layers can probably be removed using a sump-pump or trench sump-pump. Wellpoint system can be used in the area where silty sand soils are present. The selection and proper implementation of an effective groundwater control system is the responsibility of the contractor. Due to the presence of silty sand soils and the hydrostatic pressures, blow up may occur if an effective dewatering system is not in place at the time of construction.

Design of a wellpoint system should consider the amount of groundwater to be lowered and the permeability of the affected soils. The selection and proper implementation of an effective groundwater control system is the responsibility of the contractor. The design of groundwater and surface water should be in accordance with The City of Galveston Specifications, Section 01563 – Control of Groundwater and Surface Water.

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8.5 OSHA Soil Classifications

The subsoils can be classified in accordance with Occupational Safety and Health Administration (OSHA) Standards, dated October 31, 1989 of the Federal Register. OSHA classification system categorizes the soil and rock in four types based on shear strength and stability. The description of four (4) types in classification system is summarized in the Appendix C

Based on our geotechnical exploration and laboratory test results, details of soil classifications at each boring are summarized in the OSHA Soil Classification and Trench Safety Recommendations, presented in Appendix C.

8.6 Excavations

Each side of an excavation or trench which is five-ft or deeper must be protected by sheeting/bracing shoring or sloped. Based on soil strength data and OSHA soil classifications, temporary (less than 24 hours) open-trenched, non-surcharged, and unsupported excavations should be made on slopes of about 1.5(h):1(v). Vertical cuts can be constructed, provided shoring and bracing are used for the excavation wall stability. Benched excavation can also be used with average slopes of about 1(h):1(v) and steps should not be higher than five-ft. In all cases, excavations should conform to OSHA guidelines. Flatter slopes may have to be used if large amounts of sand need to be excavated for deep installations. Specifications should require that no water be allowed to pond in the excavations. The surface slopes should be protected from deterioration and weathering if they are to be left open for more than 24 hours.

Excavations should be performed with equipment capable of providing a relatively clean bearing area. Excavation equipment should not disturb the soil beneath the design excavation bottom and should not leave large amounts of loose soil in the excavation.

8.7 Lateral Earth Pressures

In the event that open excavations are not used, the proposed underground utilities can be installed using trench sheeting. The sheeting can be constructed in the form of cantilever sheeting or with bracing. Lateral earth pressures for each method used are summarized on Plate 5. The trenching and shoring operations should follow OSHA Standards. We recommend a geotechnical engineer monitor all phases of trench excavation and bracing to assure trench safety. Furthermore, a letter for trench safety recommendation is provided separately.

8.8 Backfilling

8.8.1 Backfilling for Open-Excavation

Sand backfill used in the cement-stabilized sand and sand backfill section should be free of clay lumps, organic materials, or other deleterious material, and should have a PI less than 4 for cement-stabilized sand and less than 7 for the sand backfill, and not more than 15% passing the No. 200 sieve. Cement stabilized sand should conform to The City of Galveston Specifications, Section 02252 – Cement Stabilized Sand.

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Random fill for zones above pipe bedding should be placed in loose lifts not exceeding eight- inch and compacted to 100% of the natural soil density. This value will be on the order of 95% of standard density (ASTM D 698) at a moisture content between optimum and +3% of optimum. These values should be verified by testing during construction.

8.8.2 Backfilling for Auger Pits and Auger Holes

Sand used in backfill sections should be free of clay lumps, organic materials, or other deleterious substances, and should have a PI less than 7, and not more than 15% passing the No. 200 sieve.

Backfill should be placed in accordance with The City of Galveston Specifications, Section 02227 – Excavation and Backfill for Utilities.

8.9 Loads Imposed on Buried Pipes

8.9.1 General

The loads on an underground pipe depend principally upon the weight of overburden soils, roadway and loads due to surcharges. For design of concrete pressure pipe, linear load due to overburden can be determined based on the design tables and charts presented in the “AWWA Manual of Water Supply Practices Concrete Pressure Pipe (AWWA M9)” developed by the American Concrete Pipe Association. Overburden pressure for the buried pipes at the project alignments are estimated by using the soil density (γ) and the height of the soil over the pipe (H).

8.9.2 Loads Due to Overburden Pressure

Overburden or prism load for buried pipes is given by the following equation:

P = γH

Where: P = Load due to weight of soils at depth, psf γ = Total Unit weight of soil, 125 pcf H = Height of the soil over the pipe, ft

Loadings per linear foot of pipe:

2 We = Cd γ(Bd) (Marston Equation)

 H    2ku'  1 e  Bd  C  d 2ku'

Where: We = Load, pounds per linear foot (lb/ft) Bd = Trench width (ft)

Cd = Load Coefficient k = Friction angle between backfill and soil u´ = Coefficient of friction between fill material and sides of trench ku´ = for sand = 0.165 for clay = 0.130 for saturated clay = 0.110 Project No. 18-105E 10 GEOTECH ENGINEERING AND TESTING

8.9.3 Piping System Thrust Restraint

Fittings on underground pipes are subject to thrust forces inherited from the fluid pressure in the pipe and are directly proportional to the fluid pressure. Unbalance thrust forces will be developed in pressure pipelines due to changes in direction, cross-sectional areas, or when the pipe is terminated. These forces may cause joints to disengage if not adequately restrained. There will be a slight loss of head due to turbulence friction in bends of the pipes. This loss will cause a pressure change across the bend, but it is usually small enough to be neglected.

The thrust force may require more reaction than is available just from the pipe bearing against the backfill. In order to prevent intolerable movement and overstressing of the pipe, suitable buttressing should be provided. In general, thrust blocks, restrained joints and tie rods are common methods of providing reaction for the thrust restraint design. The thrust restraint design provisions described in this section are based on the American Water Works Association Manual M9 (1996)-Concrete Pressure Pipe.

The force diagram shown on Plate 6 illustrates the thrust force generated by flow at a bend in the pipe. The equations for computing this thrust force are also given on this plate. The values of thrust force for a surge pressure of 50 psi were computed for a bend angle of 90 degrees. Once the size of the thrust is determined, a thrust block size can be calculated based on the bearing capacity of the soil. The area of block required is equal to the thrust force (lb) divided by the safe bearing value of the soil (psf). In cohesive soils, the safe bearing value is equal to 2/3 of the average shear strength of the soil adjacent to the block which includes a factor of safety of 3. We believe that a factor of safety of 3 is appropriate in order to limit deflections required to mobilize the passive resistance within tolerable values.

For granular soil encountered at this site, a safe bearing value for thrust blocks can be taken as 90% of the effective overburden pressure at the mid height of the thrust block which includes a factor of safety of 3. The effective overburden pressure can be calculated based on the effective unit weight of the soil above the mid-height of the thrust block.

Geotechnical design parameters for designing the necessary buttressing are as follows:

γ : = Wet unit weight of soil − above water level : 125 pcf Submerged unit weight of soil − below water level : 60 pcf c : = Cohesion = 1000 psf (for clay)  = Angle of internal friction = 30 degrees (for sand)

9.0 PAVEMENT DESIGN

9.1 General

It is planned to improve approximately 2,275-ft± linear feet of 49th Street from Avenue ‘P’ to Avenue ‘S½’, in City of Galveston, Texas. We understand that the new roadway structure will be a major thoroughfare consisting of a 2-lane undivided flexible roadway with concrete curbs and gutter boulevard. The pavement design in this study is generally in accordance with ASSHTO 1993 Guide of Design of Pavement Structures (Ref.2). Furthermore, our site preparation and soil stabilization recommendations are generally developed on the basis of the City of Galveston Specifications (Ref. 1). Project No. 18-105E 11 GEOTECH ENGINEERING AND TESTING

9.2 Traffic Information

We understand that the proposed flexible roadway will be designed as a major thoroughfare. Based on the information provided by the client, a design ESAL of 0.6 × 106 was used for the proposed flexible roadway for a 20 year deign period.

9.3 Subgrade Stabilization

The type of subgrade stabilization for the asphalt pavement areas will depend on the final grade elevation. Subgrade preparation in pavement areas should specify compaction of the upper eight- inches to at least 95% of maximum standard Proctor density (ASTM D 698) at a moisture content with ±2% of optimum. Our field and laboratory tests indicate that the surficial soils consist of sandy silt soils. Depending on the type of soils encountered, lime-fly ash stabilization of the surficial soils should most likely be performed. The upper eight-inches of the soils should be lime-fly ash stabilized, using 2% lime and 8% fly-ash by dry weight. The application rates corresponding to these additive amounts would be 12 pounds of lime and 48 pounds of fly-ash per square yard, for eight-inches of compacted thickness. City of Galveston Specification Section 02242 can be used as a procedural guide for placing, mixing and compacting lime-fly ash stabilizer and soils.

Our recommendations on subgrade stabilization are preliminary. The actual depth and type of stabilization should be determined in the field at the time of construction just after site stripping and proofrolling. Furthermore, the type and amount of the stabilizer may vary depending on the final grade elevation and the soil type encountered.

9.4 Recommended Subgrade Design Values

Results of our laboratory tests indicate that subgrade soils are silty sand (SM) soils based on unified soils classification system (ASTM D 2487). The recommended design parameters for California Bearing Ratio (CBR) and Resilient Modulus (MR) values are 4 and 6,000 psi, respectively.

9.5 Flexible Pavement

The following design parameters (based on 1993 AASHTO Guide for Design of Pavement Structures, Ref. 2) were used in the asphalt pavement design for the proposed project alignment.

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AASHTO Design Parameter Design Value Reliability, R 95%

Overall Standard Deviation, S0 0.45

Drainage Coefficient, mi 1.3 Design Serviceability Loss, Δ psi 2.0 California Bearing ratio (CBR) 4

Subgrade Resilient Modulus (MR) in psi 6,000 Structural Layer Coefficients Hot-Mixed Hot-Laid Asphalt Surface Material 0.44 Crushed recycled Concrete (or Raw Limestone) 0.14 Lime-Stabilized or Lime-Fly Ash Stabilized Earth 0.11

Based on the above design parameters, the recommendations for the minimum asphalt pavement section thickness are as follows:

Base Course Subgrade Design, Design Asphalt (Crushed Stabilization ESAL x Structural Pavement Concrete) Thickness, 6 10 Number, SN Thickness, inch Thickness, inch inch

0.6 3.48 3.0 6.0 8.0

Detailed Pavement Design Computations are presented on Plate D-1 in Appendix D. Our asphalt designs also consider excellent drainage is provided near the pavement structures, assuming the pavement are exposed to moisture levels approaching saturation from 1 to 5 percent of the time.

10.0 CONSTRUCTION CONSIDERATIONS

10.1 Site Preparation

The project site has the potential for construction problems related to the surficial layer of silty sand (SM) fill soils. The surficial silty sand (SM) fill soils could become extremely soft when wet, and must be stabilized, aerated, or replaced. In the event that the surficial silty sand (SM) fill soils become wet, they will experience rutting and pumping. Therefore, these soils should be improved. The depth of the improvement is generally to the bottom of the surficial granular layer. Our recommendations on subgrade improvements are presented in the earthwork section of this report. Site preparation for the proposed development should be conducted in accordance with The City of Galveston Specifications, Section 02105 – Site Preparations. In general, our recommendations for site preparations in the floor slab and pavement areas are summarized below:

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1. In general, remove all vegetation, tree roots, organic topsoil, existing foundations, paved areas and any undesirable materials from the construction area. Tree trunks and tree roots under the floor slabs should be removed to a root size of less than 0.5-inch. We recommend that the stripping depth be evaluated at the time of construction by a soil technician.

2. Any on-site fill soils, encountered in the structure and pavement areas during construction, must have records of successful compaction tests signed by a licensed professional engineer that confirms the use of the fill and record of construction and earthwork testing. These tests must have been performed on all the lifts for the entire thickness of the fill. In the event that no compaction test results are available, the fill soils must be removed, processed and recompacted in accordance with our site preparation recommendations. Excavation should extend at least two-feet beyond the structure and pavement area. Alternatively, the existing fill soils should be tested comprehensively to evaluate the degree of compaction in the fill soils.

3. The subgrade areas should then be proofrolled with a loaded dump truck or similar pneumatic-tired equipment with loads not be less than 25-tons. The proofrolling serves to compact surficial soils and to detect any soft or loose zones. The proofrolling should be conducted in accordance with The City of Galveston Specifications. Any soils deflecting excessively under moving loads should be undercut to firm soils and recompacted. Any subgrade stabilization should be conducted after site proofrolling is completed and approved by the geotechnical engineer. The proofrolling operations should be observed by an experienced geotechnician.

4. The backfill soils in the trench/underground utility areas and tree root excavation areas should consist of selected structural fill, compacted per City of Galveston Specifications. In the event of compaction difficulties, the trenches should be backfilled with cement- stabilized sand or other materials approved by the geotechnical engineer. Due to high permeability of sands and potential surface water intrusion, bank sands should not be used as backfill material in the trench/underground utility areas and tree root excavation areas.

5. In cut areas, the soils should be excavated to grade and the surface soils proofrolled and scarified to a minimum depth of six-inch and recompacted to the previously mentioned density and moisture content.

6. Positive site drainage should be developed at the beginning of the project to limit construction difficulties with wet surface soils.

10.2 Suitability of On-Site Soils for Use as Fill

10.2.1 General

Fill requirements should be in accordance with The City of Galveston Specifications Section 02226 –Excavation and Backfill for Structures, Section 02227 – Excavation and Backfill for Utilities and Section 02229 – Utility Backfill Materials. The on-site soils can be used as fill materials as described in the following report sections.

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10.2.2 Select Structural Fill

This is the type of fill that can be used for the underground utilities. These soils should consist of lean clays, free of root organics, with plasticity indices between 7 and 20 and amount of passing No. 200 sieve greater than 50 percent.

10.2.3 Structural Fill

This type does not meet the Atterberg limit requirements for select structural fill. This fill should consist of lean clays or fat clays. They can be used for the underground utilities backfill after treatment.

10.2.4 General Fill

This type of fill consists of sands and silts. These soils are moisture sensitive and are difficult to compact in a wet condition (they may pump). These soils can be used as structural fill with the understating that they can erode easily and if they get wet, they are difficult to compact (they may pump). These soils can result in a perched water table. The owner and the civil engineer must be aware of these potential issues.

10.2.5 On-Site Fill Soil Classification

Based on Borings B-1 and B-2, the on-site soils can be used as fill materials as described below:

Use as Fill Stratum Select Structural General No.(1) Soil Type Structural Fill Fill Fill Notes I Fill: Silty Sand (SM) – –  2, 3 II Silty Sand (SM) – –  2, 3

Notes: 1. See soil stratigraphy and design conditions sections of this report for strata description. 2. All fill soils should be free of organics, roots, etc. 3. The on-site cohesionless soils are moisture sensitive and erode easily. These soils will pump when they get wet. Compaction difficulties will occur in these soils in a wet condition.

10.3 Surface Water Drainage

In order to minimize pounding of surface water, site drainage should be established early in project construction so that this condition will be controlled.

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10.4 Earthwork

10.4.1 General

Difficult access and workability problems will most likely occur in the surficial silty sand fill soils due to poor site drainage, wet season, or site geohydrology. Considering the soils stratigraphy, the construction of this project should be conducted during the dry season to avoid major earthwork problems. The subgrade soils should be improved if they become wet and experience pumping problems. This condition can be improved by (a) improving drainage, (b) opening up to dry up (c) removing and replacing with dry cohesive soils or (d) chemically modifying or stabilizing the soils. These alternatives are discussed in the following report sections.

10.4.2. Improving Drainage

The project site drainage in the pumping soils can be accomplished by placing several shallow bleeder ditches (about 18-inches ±) in the surficial cohesionless soils. These bleeder ditches should be directed to a low area, such as a hole (detention pond) or another ditch in the lowest elevation area of the site. This will allow the surficial soils to drain the water and make the drying process faster. The hole/low area should not be under the building areas. The excess water can be pumped out of the hole and moved off-site.

10.4.3. Subgrade Drying

The on-site wet soils can be opened up so that it would dry up. However, opening up the surficial cohesionless soils for drying purposes may not be practical, due to cyclic rainfall in the Gulf-Coast area.

10.4.4. Removal and Replacement

The surficial cohesionless soils can be removed and replaced with select structural fill. The actual depth of removal and replacement should be evaluated in the field, but it can be whole thickness of surficial cohesionless soils. This procedure will include removal of the surficial cohesionless soils, proofrolling and compacting the subgrade cohesive soils to a minimum of 95 percent standard Proctor density (ASTM D 698). The site can then be backfilled with select structural fill, compacted to a minimum of 95 percent of standard Proctor density. The proofrolling should be in accordance with the site preparation section of this report. All of the fill soils should be placed and tested in accordance with the site preparation section of this report.

10.4.5. Modification/Stabilization

We recommend that the on-site cohesionless soils be modified (to dry up), using 5 to 10 percent fly ash by dry weight. The fly ash stabilization should be in accordance to City of Galveston Standard Specification, 02242 – Lime/Fly Ash Stabilized Subgrade. The estimated amounts of fly ash per depth of modification are as follows:

Project No. 18-105E 16 GEOTECH ENGINEERING AND TESTING

Fly Ash Weight Range, Modification lbs. per Square Yard Depth, in. 5% 10%

6 23 45 12 46 90 18 69 135 24 92 180

We recommend that five percent fly ash be used if the surficial soils are relatively moist at the time of application. Higher levels (10 percent) of fly ash should be used if wet and soggy subgrade soils are encountered.

The subgrade soils should be removed to a depth of 24-inch (or more) below existing grade. These soils should be stockpiled. The soils below a depth of 24-inch should be modified to a depth of 12-inch. These soils should be compacted to a minimum of 95 percent of standard Proctor density (ASTM D 698). The stockpiled soils should then be modified and replaced in six-inch lifts and compacted to 95 percent of maximum dry density as determined by ASTM D 698 at moisture contents within ±2 percent of optimum.

Due to poor drainage and the depth of the cohesionless soils, the depth of stabilization may be as deep as depth of cohesionless soils. A test section can be implemented for this purpose. The subgrade soils should be modified in six-inch lifts and compacted within four hours of mixing and placement. All of the subgrade soils should be compacted to a minimum of 95 percent of the standard Proctor density at the moisture content with optimum. The degree of compaction for the lifts, below a depth of 24-inch can be relaxed to 90 percent of maximum dry density to ease the construction procedures.

The subcontractor who will be doing the subgrade modification or stabilization should be experienced with stabilization procedures and methods. Furthermore, all of the earthwork at this project should be monitored by our geotechnician to assure compliance with the project specifications.

Once the subgrade is constructed, the soils at the top of subgrade should be slicked and the subgrade needs to be crowned such that the all surface water would drain away. No low areas should be left within the subgrade areas, since these areas would hold water and destroy the subgrade structure.

10.5 Construction Surveillance

Construction surveillance and quality control tests should be planned to verify materials and placement in accordance with the specifications. The recommendations presented in this report were based on a discrete number of soil test borings. Soil type and properties may vary across the site. As a part of quality control, if this condition is noted during the construction, we can then evaluate and revise the design and construction to minimize construction delays and cost overruns. We recommend the following quality control procedures be followed by a qualified engineer or technician during the construction of the facilities:

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o Monitor all phases of trench safety (if trench is used).

o Observe the site stripping and proofrolling.

o Verify the type, depth and amount of stabilizer.

o Verify the compaction of subgrade soils and backfill soils.

o Evaluate the quality of fill and monitor the fill compaction for all lifts.

o Monitor and test the excavations for strength, cleanness, depth, size, etc.

o Observe all excavation operations.

11.0 RECOMMENDED ADDITIONAL STUDIES

This report has been based on assumed conditions/characteristics of the proposed development where specific information was not available. It is recommended that civil engineer along with any other design professionals involved in this project carefully review these assumptions to ensure they are consistent with the actual planned development. When discrepancies exist, they should be brought to our attention to ensure they do not affect the conclusions and recommendations provided herein. We recommend that GET be retained to review the plans and specifications to ensure that the geotechnical related conclusions and recommendations provided herein have been correctly interpreted as intended.

12.0 STANDARD OF CARE

The recommendations described herein were conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the geotechnical engineering profession practicing contemporaneously under similar conditions in the locality of the project. No other warranty or guarantee, expressed or implied, is made other than the work was performed in a proper and workmanlike manner.

13.0 REPORT DISTRIBUTION

This report was prepared for the sole and exclusive use by our client and owner, based on specific and limited objectives. All reports, boring logs, field data, laboratory test results, maps and other documents prepared by GET as instruments of service shall remain the property of GET. GET assumes no responsibility or obligation for the unauthorized use of this report by other parties and for purposes beyond the stated project objectives and work limitations.

14.0 REFERENCES

1. “City of Galveston Specifications”, City of Galveston.

2. AASHTO Specifications, “Guide for Design of Pavement Structures”, American Association of State Highway and Transportation Officials, 1993.

Project No. 18-105E 18 GEOTECH ENGINEERING AND TESTING

PROJECT Alignment

SITE VICINITY MAP NORTH

PROJECT: Desktop Geologic Fault Study and Geotechnical Study, 49th Street from Avenue ‘P’ to Avenue ‘S½’ Galveston County, Texas

SCALE: NOT TO SCALE DATE: MAY 2018 PROJECT NO.: 18-105E

GEOTECH ENGINEERING AND TESTING PLATE 1

PROPOSED ALIGNMENTS AND BORING NUMBERS FOR 49th STREET PAVING IMPROVEMENTS FROM AVENUE ‘P’ TO AVENUE ‘S½’

Alignment Boring No. From To 49th Street B-1 Avenue P Avenue P ½ 49th Street B-2 Avenue P ½ Avenue Q 49th Street B-3 Avenue Q ½ Avenue R 49th Street B-4 Avenue R ½ Avenue S 49th Street B-5 Avenue S Avenue S ½

GEOTECH ENGINEERING AND TESTING PLATE 2

Project Site

FAULTS IN THE HARRIS COUNTY AREA (Project Site location is approximate) NORTH PROJECT: Desktop Geologic Fault Study and Geotechnical Study, 49th Street from Avenue ‘P’ to Avenue ‘S½’ Galveston County, Texas

SCALE: NOT TO SCALE DATE: MAY 2018 PROJECT NO.: P18-105E

PLATE 3 EXISTING PAVEMENT THICKNESS

Pavement Thickness, inches Boring Locations Asphalt B-1 2 B-2 2 B-3 2 B-4 2 B-5 2

GEOTECH ENGINEERING AND TESTING PLATE 4

LATERAL EARTH PRESSURE DIAGRAM

Legend: Braced Excavation (stiff clays) * * * * * * * * * * * * * Braced Excavation (sands) Cantilivered sheeting

Active Pressure: (a) Braced Excavation (stiff clays) = 0.5q + 30H + 62.4H (b) Braced Excavation (sands) = 0.4q + 18H + 62.4H (c) Cantilivered sheeting = 0.7q + 42H + 62.4H

where: q = surcharge load, psf H = wall height, ft.

Notes: 1. The above Active Pressure Equations account for the groundwater at the surface. 2. The final lateral pressures should be reviewed prior to construction. 3. Trench excavation and construction should be observed by a geotechnical engineer. 4. The means and methods for a safe excavation is the responsibility of the contractor.

GEOTECH ENGINEERING AND TESTING PLATE 5

THRUST FORCES ACTING ON BEND

PA V

PA Tx X V Δ

Tx = PA (1-cos θ) T Ty = PA sin θ

T = 2 PA sin θ/2 T y

Δ = (90 – θ/2)

Where:

T = Resultant Thrust Force on the Bend Tx = Component of Thrust Force in X-Direction Ty = Component of Thrust Force in Y-Direction P = Maximum Sustained Pressure A = Pipe Cross Sectional Area θ = Bend Deflection Angle V = Fluid Velocity

Δ = Angle between T and X-axis D = Inside Diameter of the Pipe

Sample Calculation:

Given P = 50 psi, D = 12-inch A = πd2/4 = 113.1 in2

For θ = 90° T = 2 PA sin θ/2 = 2 * 50 * 113.1 * sin (90/2) = 7997.4 lb = 7.99 kips Tx = PA (1 - cos θ) = 50 * 113.1 * (1 – cos 90°) = 5.66 kips Ty = PA sin θ = 50 * 113.1 * sin 90° = 5.66 kips

GEOTECH ENGINEERING AND TESTING PLATE 6

APPENDIX A

Plate

Site Vicinity Map A-1 Plan of Borings A-2 Soil Stratigraphy Profile A-3 Logs of Borings A-4 – A-8 Key to Log Terms and Symbols A-9 Summary of Laboratory Test Results A-10 – A-14

GEOTECH ENGINEERING AND TESTING

PROJECT Alignment

SITE VICINITY MAP NORTH

PROJECT: Desktop Geologic Fault Study and Geotechnical Study, 49th Street from Avenue ‘P’ to Avenue ‘S½’ Galveston County, Texas

SCALE: NOT TO SCALE DATE: MAY 2018 PROJECT NO.: 18-105E

GEOTECH ENGINEERING AND TESTING PLATE A-1

B-1

B-2

B-3

B-4

B-5

PLAN OF BORINGS (boring dimensions and locations are approximate) NORTH

ROJECT: Desktop Geologic Fault Study and Geotechnical Study, 49TH St. from Avenue P to Avenue S 1/2 Galveston County, Texas

SCALE: NOT TO SCALE DATE: MAY 2018 PROJECT NO.: 18-105E

GEOTECH ENGINEERING AND TESTING PLATE A-2

SUMMARY OF LABORATORY TEST RESULTS PROJECT NAME: Desktop Geologic Fault Study and G/S for 49th Street paving improvements from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas Geotechnical Consultant's Name: Geotech Engineering and Testing CONSULTANT PROJECT NUMBER: 18-105E

SAMPLE ATTERBERG LIMITS SHEAR STRENGTH (TSF)

DEPTH (FT) WATER DRY PERCENT UNCONFINED UU TEST POCKET BORING CONTENT( DENSITY LL PL PI PASSING COMPRESSION (CONFINING PENETRO NO. NO. Top Bottom TYPE SPT %) (pct) (%) (%) (%) SIEVE 200 (%) TEST PRESSURE. TSF) TORVANE METER TYPE OF MATERIAL B-1 1 0 0.2 UD Asphast Pavement (2-inch in thickness) 2 0.2 2 UD 15 13 FILL: Silty Sand (SM) 3 2 4 UD 12 21 45 Silty Sand (SM) 4 4 6 UD 14 25 34 Silty Sand (SM) 5 6 8 UD 24 24 31 Silty Sand (SM) 6 8 10 UD 26 24 Silty Sand (SM) 7 13 15 UD 28 24 Silty Sand (SM) 8 18 20 UD 28 32 Silty Sand (SM) 9 23 25 UD 33 27 Silty Sand (SM) NOTES: UD = UNDISTURBED SAMPLE, EXTRUDED IN FIELD LL = LIQUID LIMIT

SS = SPLIT SPOON SAMPLE PL = PLASTIC LIMIT LEGEND: AG = AUGER CUTTINGS PI = PLASTIC INDEX

SPT = STANDARD PENETRATION TEST UU = TRIAXIAL COMPRESSION PLATE A-10 SUMMARY OF LABORATORY TEST RESULTS PROJECT NAME: Desktop Geologic Fault Study and G/S for 49th Street paving improvements from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas Geotechnical Consultant's Name: Geotech Engineering and Testing CONSULTANT PROJECT NUMBER: 18-105E

SAMPLE ATTERBERG LIMITS SHEAR STRENGTH (TSF)

DEPTH (FT) WATER DRY PERCENT UNCONFINED UU TEST POCKET BORING CONTENT( DENSITY LL PL PI PASSING COMPRESSION (CONFINING PENETRO NO. NO. Top Bottom TYPE SPT %) (pct) (%) (%) (%) SIEVE 200 (%) TEST PRESSURE. TSF) TORVANE METER TYPE OF MATERIAL B-2 1 0 0.2 UD Asphast Pavement (2-inch in thickness) 2 0.2 2 UD 14 5 FILL: Silty Sand (SM) 3 2 4 UD 13 24 13 Silty Sand (SM) 4 4 6 UD 16 21 13 Silty Sand (SM) 5 6 8 UD 26 24 13 Silty Sand (SM) 6 8 10 UD 26 22 Silty Sand (SM) 7 13 15 UD 32 20 Silty Sand (SM) 8 18 20 UD 32 21 Silty Sand (SM) 9 23 25 UD 35 24 Silty Sand (SM) NOTES: UD = UNDISTURBED SAMPLE, EXTRUDED IN FIELD LL = LIQUID LIMIT

SS = SPLIT SPOON SAMPLE PL = PLASTIC LIMIT LEGEND: AG = AUGER CUTTINGS PI = PLASTIC INDEX

SPT = STANDARD PENETRATION TEST UU = TRIAXIAL COMPRESSION PLATE A-11 SUMMARY OF LABORATORY TEST RESULTS PROJECT NAME: Desktop Geologic Fault Study and G/S for 49th Street paving improvements from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas Geotechnical Consultant's Name: Geotech Engineering and Testing CONSULTANT PROJECT NUMBER: 18-105E

SAMPLE ATTERBERG LIMITS SHEAR STRENGTH (TSF)

DEPTH (FT) WATER DRY PERCENT UNCONFINED UU TEST POCKET BORING CONTENT( DENSITY LL PL PI PASSING COMPRESSION (CONFINING PENETRO NO. NO. Top Bottom TYPE SPT %) (pct) (%) (%) (%) SIEVE 200 (%) TEST PRESSURE. TSF) TORVANE METER TYPE OF MATERIAL B-3 1 0 0.2 UD Asphast Pavement (2-inch in thickness) 2 0.2 2 UD 19 11 FILL: Silty Sand (SM) 3 2 4 UD 11 15 Silty Sand (SM) 4 4 6 UD 16 26 5 Silty Sand (SM) 5 6 8 UD 22 26 Silty Sand (SM) 6 8 10 UD 28 26 Silty Sand (SM) 7 13 15 UD 30 25 Silty Sand (SM) 8 18 20 UD 31 26 24 Silty Sand (SM) 9 23 25 UD 38 23 34 Silty Sand (SM) NOTES: UD = UNDISTURBED SAMPLE, EXTRUDED IN FIELD LL = LIQUID LIMIT

SS = SPLIT SPOON SAMPLE PL = PLASTIC LIMIT LEGEND: AG = AUGER CUTTINGS PI = PLASTIC INDEX

SPT = STANDARD PENETRATION TEST UU = TRIAXIAL COMPRESSION PLATE A-12 SUMMARY OF LABORATORY TEST RESULTS PROJECT NAME: Desktop Geologic Fault Study and G/S for 49th Street paving improvements from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas Geotechnical Consultant's Name: Geotech Engineering and Testing CONSULTANT PROJECT NUMBER: 18-105E

SAMPLE ATTERBERG LIMITS SHEAR STRENGTH (TSF)

DEPTH (FT) WATER DRY PERCENT UNCONFINED UU TEST POCKET BORING CONTENT( DENSITY LL PL PI PASSING COMPRESSION (CONFINING PENETRO NO. NO. Top Bottom TYPE SPT %) (pct) (%) (%) (%) SIEVE 200 (%) TEST PRESSURE. TSF) TORVANE METER TYPE OF MATERIAL B-4 1 0 0.2 UD Asphast Pavement (2-inch in thickness) 2 0.2 2 UD 14 24 FILL: Silty Sand (SM) 3 2 4 UD 13 13 15 Silty Sand (SM) 4 4 6 UD 16 20 11 Silty Sand (SM) 5 6 8 UD 25 21 4 Silty Sand (SM) 6 8 10 UD 26 25 Silty Sand (SM) 7 13 15 UD 30 24 Silty Sand (SM) 8 18 20 UD 32 23 Silty Sand (SM) 9 23 25 UD 32 24 Silty Sand (SM) NOTES: UD = UNDISTURBED SAMPLE, EXTRUDED IN FIELD LL = LIQUID LIMIT

SS = SPLIT SPOON SAMPLE PL = PLASTIC LIMIT LEGEND: AG = AUGER CUTTINGS PI = PLASTIC INDEX

SPT = STANDARD PENETRATION TEST UU = TRIAXIAL COMPRESSION PLATE A-13 SUMMARY OF LABORATORY TEST RESULTS PROJECT NAME: Desktop Geologic Fault Study and G/S for 49th Street paving improvements from Avenue ‘P’ to Avenue ‘S½’ City of Galveston, Texas Geotechnical Consultant's Name: Geotech Engineering and Testing CONSULTANT PROJECT NUMBER: 18-105E

SAMPLE ATTERBERG LIMITS SHEAR STRENGTH (TSF)

DEPTH (FT) WATER DRY PERCENT UNCONFINED UU TEST POCKET BORING CONTENT( DENSITY LL PL PI PASSING COMPRESSION (CONFINING PENETRO NO. NO. Top Bottom TYPE SPT %) (pct) (%) (%) (%) SIEVE 200 (%) TEST PRESSURE. TSF) TORVANE METER TYPE OF MATERIAL B-5 1 0 0.2 UD Asphast Pavement (2-inch in thickness) 2 0.2 2 UD 18 7 FILL: Silty Sand (SM) 3 2 4 UD 11 20 5 Silty Sand (SM) 4 4 6 UD 15 26 2 Silty Sand (SM) 5 6 8 UD 20 27 4 Silty Sand (SM) 6 8 10 UD 24 25 Silty Sand (SM) 7 13 15 UD 30 25 Silty Sand (SM) 8 18 20 UD 36 24 Silty Sand (SM) 9 23 25 UD 38 23 Silty Sand (SM) NOTES: UD = UNDISTURBED SAMPLE, EXTRUDED IN FIELD LL = LIQUID LIMIT

SS = SPLIT SPOON SAMPLE PL = PLASTIC LIMIT LEGEND: AG = AUGER CUTTINGS PI = PLASTIC INDEX

SPT = STANDARD PENETRATION TEST UU = TRIAXIAL COMPRESSION PLATE A-14

APPENDIX B

Project Alignments Pictures

GEOTECH ENGINEERING AND TESTING PROJECT PICTURES Project No. 18-105E

P-1 (A View of Project Alignment along 49th Street)

P-2 (A View of Project Alignment along 49th Street)

GEOTECH ENGINEERING AND TESTING PROJECT PICTURES Project No. 18-105E

P-3 (A View of Coring Operation)

P-4 (A View of Drilling Operation)

GEOTECH ENGINEERING AND TESTING

APPENDIX C

OSHA Soil Classification and Trench Safety Recommendations

GEOTECH ENGINEERING AND TESTING ACCREDITED CERTIFICATE #0075-01 GEOTECH ENGINEERING and TESTING #0075 -02

Geotechnical, Environmental, Construction Materials, and Forensic Engineering

OSHA SOIL CLASSIFICATION AND TRENCH SAFETY RECOMMENDATIONS

General

Occupational Safety and Health Administration (OSHA) requires a trench protective system for trenches deeper than five-ft. Trenches that are deeper than five-ft, should be shored, sheeted, braced or laid back to a stable slope, or some other appropriate means of protection should be provided where workers might be exposed to moving ground or caving. OSHA developed a soil classification system to be used as a guideline in determining protective requirements for trench excavations.

OSHA classification system categorizes the soil and rock in four types based on shear strength and stability. These classifications are summarized in the following report sections.

Stable Rock means natural solid mineral matter that can be excavated with vertical sides and remain intact while exposed.

Type A Soil means cohesive soils with an unconfined compressive strength of 1.5-ton per square foot (tsf) or greater. Examples of cohesive soils are: clay, silty clay, sandy clay, clay loam, silty clay loam, sandy clay loam, caliche and hardpan. No soil is Type A if: o The soil is fissured; or o The soil is subject to vibration from heavy traffic, pile driving or similar effects; or o The soil has been previously disturbed; or o The soil is part of a slope, layered system where the layers dip into the excavation on a slope of 4(h): 1(v) or greater; or o The material is subject to other factors that would require it to be classified as a less stable material.

Type B Soil o Cohesive soil with an unconfined compressive strength greater than 0.5 tsf but less than 1.5 tsf; or o Granular cohesionless soils including: angular gravel, silt, silt loam, sandy loam, and in some case, silty clay loam and sandy clay loam; or o Previously disturbed soils except those which would otherwise be classified as Type C soil; or o Soil that meets the unconfined compressive strength or cementation requirements for Type A, but is fissured or subject to vibration; or

17407 US Highway 59 • Houston, Texas 77396 • Tel.: 713-699-4000 • Fax: 713-699-9200 Texas • Louisiana • New Mexico • Oklahoma Website: www.geotecheng.com o Dry rock that is not stable; or

o Material that is part of a sloped, layered system where the layers dip into the excavation on a slope less steep than 4(h): 1(v), but only if the material would otherwise be classified as Type B.

Type C Soil

o Cohesive soil with an unconfined compressive strength of 0.5 tsf or less; or

o Granular soils including gravel, sand, and loamy sand; or

o Submerged soil or soil from which water is freely seeping; or

o Submerged rock that is not stable; or

o Materials in a sloped, layered system where the layers dip into the excavation on a slope 4 (h) : 1(v) or steeper.

Under the assumption that appropriate groundwater control measures are carried out, and the groundwater table, if present, is lowered and maintained at least 3-ft below the excavation depths, the stable cohesive soils (CL) and (CH), with unconfined compressive strength greater than 0.5 tsf, are classified as OSHA soil Type “B”. The granular soils, which are less stable, are classified as OSHA soil Type “C”.

Based on our geotechnical exploration and laboratory test results, details of soil classifications at the boring locations are summarized below:

Depth Boring No. Range (1), ft Soil Type OSHA Soil Classification B-1 through B-5 0 – 2 Fill: Silty Sand (SM) C 2 – 25 Silty Sand (SM) C

Note: 1. Refer to each boring log of soils stratigraphy

Stockpiling of excavated materials may not be allowed near the banks of excavated areas. Generally, a distance of one-half the excavation depth on both sides of the trench should be kept clear of any excavated material.

Underground utility trenches should be provided with proper trench support system. The trench should be provided with a temporary shoring system on excavations deeper than five-ft. The trenches can be made using shored, sheeted and braced, laid back stable slope or other means of appropriate protection system should be provided where workers are exposed to moving ground or caving. The slopes may be constructed in accordance with Table B-1 and shoring may be constructed in accordance with Table C- 1.1, Table C-1.2 and Table C-1.3 of 29 CFR Part 1926 of OSHA.

Project No. 18-105E 2 GEOTECH ENGINEERING AND TESTING In the event that trench sheeting is used, the sheeting can be constructed in the form of cantilever sheeting or with bracing. Lateral earth pressures for each method used are summarized on Plate D-1. The trenching and shoring operations should follow OSHA Standards. We recommend that a geotechnical engineer monitor all phases of trench excavation and bracing to assure trench safety.

Timber shoring as outlined in 29 CFR Part 1926 of OSHA recommendation may be used in the construction of trench supporting system.

For trench excavation, it is necessary to maintain the stability of the sides and base and not to disturb the soil below the excavation grade. In braced cuts, if the sheeting is terminated at the base of the cut, the bottom of the excavation can become unstable under certain conditions. The stability of the trench bottom is governed by the shear strength of the soils and the differential hydrostatic head. For cuts in cohesive soils (such as fat clay and lean clay), stability of the bottom can be evaluated in accordance with the procedure outlined on Plate D-2. However, due to presence of cohesionless subsoils (i.e., sandy silt) encountered at the site, dewatering may be required to prevent bottom blowup if the groundwater is encountered during construction. Design soil parameters presented on Plate D-3 can be used for design.

Groundwater Control

We understand that the depths of underground utilities will be less than 15-ft deep. Our short-term field exploration indicates that groundwater was encountered at depths ranging from 4- to 5-ft during drilling and 0.5-hour of after drilling. Therefore, groundwater dewatering may be required. Fluctuations in groundwater can occur as a function of seasonal moisture variation. Groundwater control recommendations are presented in the following report sections.

It is our opinion that groundwater should be lowered to a depth of at least three-ft below the deepest excavation grade in order to provide dry working conditions and firm bedding. Any minor water inflow in cohesive soil layers can probably be removed using a sump-pump or trench sump-pump. Wellpoint system can be used in the area where cohesionless (i.e. sandy silt) soils are present. Due to the presence of silty sand and the hydrostatic pressures, blow up may occur if an effective dewatering system is not in place at the time of construction.

Piezometers should be installed near the excavation area to further evaluate groundwater levels in the area prior to construction. The piezometers should be left in place during construction to monitor groundwater levels and effectiveness of the dewatering system.

Design of a wellpoint system should consider the amount of groundwater to be lowered and the permeability of the affected soils. The selection and proper implementation of an effective groundwater control system is the responsibility of the contractor. The design of groundwater and surface water should be in accordance with the City of Galveston Specifications, Section 01563 – Control of Groundwater and Surface Water.

The results of our field exploration and laboratory testing indicate that unsatisfactory soils for excavation, such as cohesionless (i.e. sandy silt and silty sand) soils exist in the borings. A summary of the unsatisfactory soils locations and depths are as follows:

Boring(s) Depth, ft.

B-1 through B-5 0 to 25

Project No. 18-105E 3 GEOTECH ENGINEERING AND TESTING If these conditions are encountered during the time of construction, suitable groundwater control measures should be implemented in accordance with The City of Galveston Specifications, Section 01563 – Control of Groundwater and Surface Water. Furthermore, the contractor may have to over excavate an additional 6 inches and remove unstable or unsuitable materials with approval by geotechnical engineer, then place an equal depth of cement stabilized sand.

Our recommendation on trench safety at the project site does not address the effects of excavations on existing buildings/facilities at the project site. This study was outside the scope of our work.

Project No. 18-105E 4 GEOTECH ENGINEERING AND TESTING LATERAL EARTH PRESSURE DIAGRAM

Legend: Braced Excavation (stiff clays) * * * * * * * * * * * * * Braced Excavation (sands) Cantilevered sheeting

Active Pressure: (a) Braced Excavation (stiff clays) = 0.5q + 30H + 62.4H (b) Braced Excavation (sands) = 0.4q + 18H + 62.4H (c) Cantilevered sheeting = 0.7q + 42H + 62.4H

where: q = surcharge load, psf: A value of 250 psf can be assumed. H = wall height, ft.

GEOTECH ENGINEERING AND TESTING PLATE C-1 CUT IN COHESIVE SOIL, DEPTH OF COHESIVE SOIL UNLIMITED (T > 0.7 Bd) L= LENGTH OF CUT

XXXX XXXX γ , C

H1 2 H1 Bd 90° PH

If sheeting terminates at base of cut:

Ncc Safety Factor, F=s γH + q

Nc = Bearing capacity factor, which depends on dimensions of the excavation: Bd, L and H (use Nc from graph below) c = Undrained shear strength of clay in failure zone beneath and surrounding base of cut γ = Wet unit weight of soil q = Surcharge (assumed q = 250psf)

If safety factor is less than 1.5, sheeting or soldier piles must be carried below the base of cut to insure stability – (see note)

Bd H1 = Buried length = ≥ 5 feet 2 Note: If soldier piles are used, the center to center spacing should not exceed 3 times the width or diameter of soldier pile.

Force on buried length, PH:

2 Bd If H1H > , P = 0.7 (γHB d - 1.4CH - πcB d ) in lbs/linear foot 3 2

2 Bd 1.4CH If H1 < , P H1 = 1.5H (γH - - πc) in lbs/linear foot 3B2 d

For Trench Excavations For Square Pit or Circle Shaft STABILITY OF BOTTOM FOR BRACED CUT

GEOTECH ENGINEERING AND TESTING PLATE C-2 SOIL DESIGN PARAMETERS

(BASED ON BORINGS B-1)

Soil Type Depth Range, ft. γ, pcf c, psf φ FILL: SILTY SAND (SM) 0 – 2 125 – 28 SILTY SAND (SM) 2 – 18 125 – 30 SILTY SAND (SM) 18 – 25 125 30

(BASED ON BORING B-2)

Soil Type Depth Range, ft. γ, pcf c, psf φ FILL: SILTY SAND (SM) 0 – 2 125 – 28 SILTY SAND (SM) 2 – 18 125 – 30 SILTY SAND (SM) 18 – 25 125 30

(BASED ON BORING B-3)

Soil Type Depth Range, ft. γ, pcf c, psf φ FILL: SILTY SAND (SM) 0 – 2 125 – 28 SILTY SAND (SM) 2 – 18 125 – 30 SILTY SAND (SM) 18 – 25 125 30

(BASED ON BORING B-4)

Soil Type Depth Range, ft. γ, pcf c, psf φ FILL: SILTY SAND (SM) 0 – 2 125 – 28 SILTY SAND (SM) 2 – 18 125 – 30 SILTY SAND (SM) 18 – 25 125 30

(BASED ON BORING B-5)

Soil Type Depth Range, ft. γ, pcf c, psf φ FILL: SILTY SAND (SM) 0 – 2 125 – 28 SILTY SAND (SM) 2 – 18 125 – 30 SILTY SAND (SM) 18 – 25 125 30

GEOTECH ENGINEERING AND TESTING PLATE C-3

APPENDIX D

Pavement Design Computations

GEOTECH ENGINEERING AND TESTING

48 3. n Structural Number Structural n Desig

)

624,403 (18kip ESAL

18 Solution: W Flexible Pavement

Design Chart for

0 = 2.

10 2.2 - × 2

00psi

0 , 0.6 6 =

= 0.45

18 R 0 PSI = 4. Calculation: W 95% R = S M Δ

GEOTECH ENGINEERING AND TESTING PLATE D – 1