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S T R A T

ASTRATAGRIDPRODUCT DATA Stratagrid is a geogrid that reinforces soil by interacting with soil particles creating a durable and lasting soil and geosynthecomposite. These high performance geogrids are constructed of high molecular weight and high tenacity polyester yarns thaprecision knitted into a dimensionally stable, uniform network of apertures providing superior tensile reinforcement. A proprUV stabilized coating provides further chemical and mechanical benefits. Stratagrid is engineered to be mechanically and chcally durable, in both the harsh construction installation phase and in aggressive soil environments (pH range from 2-10).

Design PropertiesMicrogrid

1,2SG150

1SG200 SG350 SG500 SG550 SG600 SG700ULTIMATE AND CREEP LIMITED TENSILE STRENGTHS

lbs/ft 2,000 1,875 3,500 4,900 6,400 8,150 9,100 11,700(kN/m) (29.2) (27.4) (51.1) (71.5) (93.4) (118.9) (132.8) (170.

lbs/ft 1,266 1,165 2,215 3,101 4,051 5,158 5,759 7,4(kN/m) (18.5) (17.0) (32.3) (45.3) (59.1) (75.3) (84.1) (108.

REDUCTION FACTORS FOR INSTALLATION DAMAGE AND DURABILITY

RF Inst. Damage (Sand, Silt & Clay, D50 < 0.6mm) 1.20 1.05 1.05 1.05 1.05 1.05 1.05 1.05

RF Inst. Damage (3/4" minus Angular Aggregate, D50 < 6mm) 1.30 1.10 1.10 1.10 1.10 1.10 1.10 1.1

RF Inst. Damage (1.5" minus Angular Aggregate, D50 < 20mm) 1.40 1.20 1.20 1.20 1.20 1.20 1.20 1.20

RF Durability 1.10 1.10 1.10 1.10 1.10 1.10 1.11.10

LONG-TERM DESIGN STRENGTH (LTDS or Tal) 4

lbs/ft 959 1,008 1,918 2,685 3,507 4,466 4,987 6,411(kN/m) (14.0) (14.7) (28.0) (39.2) (51.2) (65.2) (72.8) (93.6)

lbs/ft 885 962 1,831 2,563 3,348 4,263 4,760 6,120(kN/m) (12.9) (14.0) (26.7) (37.4) (48.9) (62.2) (69.5) (89.3)

lbs/ft 822 882 1,678 2,349 3,069 3,908 4,363 5,610(kN/m) (12.0) (12.9) (24.5) (34.3) (44.8) (57.0) (63.7) (81.9)

SOIL INTERACTION COEFFICIENTS FOR PULLOUT (Ci) AND DIRECT SLIDING (Cds)

0.6 - 0.7

0.7 - 0.8

0.8 - 0.9

0.9 - 1.0

Physical Properties

feet 8 x 225 6 x 150 6 x 300 6 x 300 6 x 300 6 x 300 6 x 300 6 x 30(m) (2.44 x 68.6) (1.83 x 45.7) (1.83 x 91.4) (1.83 x 91.4) (1.83 x 91.4) (1.83 x 91.4) (1.83 x 91.4) (1.8

Sq. yds 200 100 200 200 200 200 200 200(Sq. m.) (167.2) (83.6) (167.2) (167.2) (167.2) (167.2) (167.2) (167.2

lbs 85 45 110 130 155 170 180 210(kg) (38.6) (20.4) (49.9) (59.0) (70.3) (77.1) (81.6) (95.3)

1. Denotes both machine and cross-machine direction strength (biaxial strength).

2. MICROGRID ultimate tensile strength determined in accordance with ASTM D 4595.

3. Minimum Average Roll Values for machine direction unless otherwise noted (Lot Average minus 2 x Standard Deviation).4. LTDS or Tal = Tult / (RF creep x RF installation damage x RF durability).5. Special order roll sizes are available for SG product styles 12-ft. or 18-ft. widths and/or custom roll lengths.

7. STRATAGRID soil and segmental retaining wall unit interface properties are available upon request.8. Note: For Permanent walls the Tal needs to be factored for uncertainties; Typically RF uncertainties = 1.5 .

Sandy Silts & Clay (SC, GC)

Uniformly-Graded Sands, Silty Sand (GP, SP, SM)

Gravel, Sand Gravel Mix, Well-Graded Sand (SW, GW)

For Sand, Silt & Clay

For 3/4" minus Angular Aggregate

For 1.5" minus Angular Aggregate

Silts/Clay (ML, CL)

Ultimate Strength2,3 ASTM D 6637

Method A

Creep Limited Strength ASTM D 5262

Roll Dimensions5, 6

Area

Weight per Roll

Width x Length

This product specification supercedes all prior specifications for the products described and is not applicable to any products shipped prior to JANUARY 1, 2008.

380 Dahlonega Road, Suite 200, Cumming, GA 30040, USA (770) 888-6688 (800) 680-7750 Fax: (770) 888-6680

Email: strata@geogrid.com Website: www.geogrid.comSGRID_DATA_2008.06

Item Unit Spec.

Caboxyl End Group (CEG) Count (max.)

Molecular Weight (min.) g/mol 25,000

meq/kg 30

MOLECULAR PROPERTIES

12-foot and 18-foot roll widavailable upon reque

6. Roll weights are average values including shipping cores. Actual roll weights may vary.

Attachment 1

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380 Dahlonega Road, Suite 200, Cumming, GA 30040, USA Email: strata@geogrid.com Website: www.geogrid.com (770) 888-6688 (800) 680-7750 Fax: (770) 888-6680

G

E O G

RI D

Strata Systems, Inc. has refined the science of soil reinforcement. Our success is a direct result of the power of STRATAGRID performance and its ability to solve common civil engineering problems. STRATAGRID inter-acts with the soil particles to create a permanent composite soil/geosynthetic structure. These high performancegeogrids are constructed of high tenacity polyester yarn utilizing a complex knitting process to provide superiorengineering properties.

SEGMENTAL RETAINING WALLS REINFORCED STEEP SLOPES REINFORCED EMBANKMENTS OVER SOFT SOIL LANDSLIDE REPAIR REINFORCED FOUNDATIONS

Applications

Distributed by:

2008 by Strata Systems, Inc. The following are trademarks of Strata Systems, Inc.: STRATAGRID, STRATANET, STRATADRAIN, SLEEVE-IT. Specifications subject to change without notice. The products are specificdesigned for the applications listed herein. The sizing, use and selection of the products should be completed by a competent design professional. The performance data herein reflect Strata Systems, Inc. expectation basedon tests conducted in accordance with recognized standard methods. The sale of these products shall be subject to the Terms and Conditions as set forth in Strata Systems, Inc. sales forms. Such Terms and Conditions of Sale will provide that Strata Systems, Inc. will have no liability for consequence damages and will include certain limited express warranties concerning these products. All other express and implied warranties of merchantability and fitness for a particular purpose are disclaimed by Strata Systems, Inc. No agent, employee or representative of Strata Systems, Inc. is authorized to modify this disclaimer. Printed in U.S.A.

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-150 Lot 1767 BB Roll 1767023TRI Log #: E2312-94-02

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 11.4

MD Maximum Strength (lbs) 213 203 208 218 211 203 209 6MD Maximum Strength (lbs/ft) 2433 2324 2380 2493 2411 2320 2393 67MD Maximum Strength (kN/m) 35.5 33.9 34.7 36.4 35.2 33.9 34.9 1.0

MD Strength @ 2% Strain (lbs) 37.4 38.1 35.8 37.1 34.0 37.6 36.7 1.5MD Strength @ 2% Strain (lbs/ft) 428 436 409 424 389 430 419 17MD Strength @ 2% Strain (kN/m) 6.24 6.36 5.97 6.18 5.68 6.28 6.12 0.25

MD Strength @ 5% Strain (lbs) 70.1 71.1 69.3 70.7 66.8 72.0 70.0 1.8MD Strength @ 5% Strain (lbs/ft) 801 812 792 808 763 823 800 21

MD Strength @ 5% Strain (kN/m) 11.7 11.9 11.6 11.8 11.1 12.0 11.7 0.3

MD Strength @ 10% Strain (lbs) 187 188 186 187 180 189 186 3MD Strength @ 10% Strain (lbs/ft) 2135 2148 2130 2139 2053 2157 2127 37MD Strength @ 10% Strain (kN/m) 31.2 31.4 31.1 31.2 30.0 31.5 31.1 0.5

MD Break Elongation (%) 12.4 11.5 12.0 13.1 12.8 11.1 12.1 0.7

TD - Number of Ribs per foot: 11.4

TD Maximum Strength (lbs) 216 219 217 218 223 218 219 3TD Maximum Strength (lbs/ft) 2468 2505 2480 2488 2550 2494 2498 29TD Maximum Strength (kN/m) 36.0 36.6 36.2 36.3 37.2 36.4 36.5 0.4

TD Strength @ 2% Strain (lbs) 32.8 33.4 32.9 31.8 33.4 33.9 33.0 0.7TD Strength @ 2% Strain (lbs/ft) 374 381 376 364 382 388 377 8TD Strength @ 2% Strain (kN/m) 5.46 5.56 5.49 5.31 5.58 5.66 5.51 0.12

TD Strength @ 5% Strain (lbs) 46.3 48.0 48.1 47.2 48.0 49.7 47.9 1.1TD Strength @ 5% Strain (lbs/ft) 529 549 550 539 548 568 547 13TD Strength @ 5% Strain (kN/m) 7.73 8.01 8.03 7.87 8.01 8.29 7.99 0.19

TD Strength @ 10% Strain (lbs) 139 145 153 146 146 148 146 4.6TD Strength @ 10% Strain (lbs/ft) 1586 1660 1749 1672 1671 1689 1671 52TD Strength @ 10% Strain (kN/m) 23.2 24.2 25.5 24.4 24.4 24.7 24.4 0.8

TD Break Elongation (%) 13.4 13.6 13.6 13.9 14.0 13.4 13.6 0.3

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

03-Sep-08

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

page 2 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

Attachment 2

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-150 Lot 1767 BB Roll 1767023TRI Log #: E2312-94-02

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 5MD Number of Ribs per foot: 11.4

MD Ultimate Strength (lbs) 1020 1016 1012 1016 4MD Ultimate Strength (lbs/ft) 2332 2323 2314 2323 9MD Ultimate Strength (kN/m) 34.0 33.9 33.8 33.9 0.1

MD Strength @ 2% Strain (lbs) 183 188 179 183 5MD Strength @ 2% Strain (lbs/ft) 417 429 408 418 10MD St rength @ 2% St rain (kN/m) 6.09 6.26 5.96 6.10 0.15

MD Strength @ 5% Strain (lbs) 357 359 355 357 2

MD Strength @ 5% Strain (lbs/ft) 817 820 811 816 5MD St rength @ 5% St rain (kN/m) 11.9 12.0 11.8 11.9 0.1

MD Strength @ 10% Strain (lbs) 932 926 915 925 9MD Strength @ 10% Strain (lbs/ft ) 2131 2118 2092 2113 20MD St rength @ 10% Strain (kN/m) 31.1 30.9 30.5 30.9 0.3

MD Break Elongation (%) 11.6 11.7 11.7 11.6 0.1

TD Number of Ribs per Specimen: 5TD Number of Ribs per foot : 11.4

TD Ultimate Strength (lbs) 956 874 961 930 49TD Ultim ate Strength (lbs/ft) 2184 1996 2196 2125 112

TD Ultimate Strength (kN/m) 31.9 29.1 32.1 31.0 1.6

TD Strength @ 2% Strain (lbs) 145 142 145 144 1TD Strength @ 2% Strain (lbs/ft) 331 325 331 329 3TD Strength @ 2% St rain (kN/m) 4.83 4.74 4.83 4.80 0.05

TD Strength @ 5% Strain (lbs) 205 201 202 203 2TD Strength @ 5% Strain (lbs/ft) 468 459 461 463 5TD Strength @ 5% St rain (kN/m) 6.83 6.70 6.73 6.76 0.07

TD Strength @ 10% Strain (lbs) 618 575 576 590 24TD Strength @ 10% Strain ( lbs/ft ) 1412 1313 1317 1347 56TD Strength @ 10% St rain (kN/m) 20.6 19.2 19.2 19.7 0.8

TD Break Elongation (%) 12.8 12.2 13.4 12.8 0.6

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 6.94 5.51 6.18 5.66 6.96 6.58 5.40 5.13 5.34 5.97 0.71

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTS

03-Sep-08

Strata SystemsQuality Control Testing

page 3 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-200 GR Lot 1743 BB Roll 1743151TRI Log #: E2312-52-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 14.3

MD Maximum Strength (lbs) 275 279 275 278 281 273 277 3MD Maximum Strength (lbs/ft) 3927 3985 3926 3970 4004 3888 3950 44MD Maximum Strength (kN/m) 57.3 58.2 57.3 58.0 58.5 56.8 57.7 0.6

MD Strength @ 2% Strain (lbs) 50.7 45.3 47.0 45.9 46.9 46.7 47.1 1.9MD Strength @ 2% Strain (lbs/ft) 723 647 670 655 668 666 672 27MD Strength @ 2% Strain (kN/m) 10.6 9.44 9.78 9.56 9.76 9.73 9.80 0.39

MD Strength @ 5% Strain (lbs) 112 81.0 84.8 81.0 83.6 82.9 87.6 12.1MD Strength @ 5% Strain (lbs/ft) 1599 1156 1210 1155 1192 1183 1249 173

MD Strength @ 5% Strain (kN/m) 23.3 16.9 17.7 16.9 17.4 17.3 18.2 2.5

MD Strength @ 10% Strain (lbs) 258 236 239 232 239 236 240 9MD Strength @ 10% Strain (lbs/ft) 3680 3369 3402 3311 3414 3373 3425 130MD Strength @ 10% Strain (kN/m) 53.7 49.2 49.7 48.3 49.8 49.2 50.0 1.9

MD Break Elongation (%) 11.5 12.9 12.3 13.0 12.9 12.1 12.4 0.6

TD - Number of Ribs per foot: 15.3

TD Maximum Strength (lbs) 132 133 146 137 8TD Maxim um Strength (lbs/ft) 2027 2041 2238 2102 118TD Maximum Strength (kN/m) 29.6 29.8 32.7 30.7 1.7

TD Strength @ 2% Strain (lbs) 24.7 24.9 28.5 26.0 2.1TD Strength @ 2% Strain (lbs/ft) 378 381 436 398 33TD Strength @ 2% St rain (kN/m) 5.52 5.56 6.37 5.82 0.48

TD Strength @ 5% Strain (lbs) 43.6 44.6 54.0 47.4 5.8TD Strength @ 5% Strain (lbs/ft) 668 683 828 726 88TD Strength @ 5% St rain (kN/m) 9.76 9.97 12.1 10.6 1.3

TD Strength @ 10% Strain (lbs) 129 130 144 134 8.2TD Strength @ 10% Strain ( lbs/ft ) 1976 1997 2203 2059 125TD Strength @ 10% St rain (kN/m) 28.9 29.2 32.2 30.1 1.8

TD Break Elongation (%) 10.3 10.2 10.4 10.3 0.1

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Strata SystemsQuality Control Testing

GEOGRID TEST RESULTS

11-Jul-08

page 2 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-200 GR Lot 1743 BB Roll 1743151TRI Log #: E2312-52-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 7MD Number of Ribs per foot: 14.3

MD Ultimate Strength (lbs) 1849 1854 1892 1865 23MD Ultimate Strength (lbs/ft) 3768 3778 3855 3800 47MD Ultimate Strength (kN/m) 55.0 55.2 56.3 55.5 0.7

MD Strength @ 2% Strain (lbs) 307 291 277 292 15MD Strength @ 2% Strain (lbs/ft) 625 593 564 594 31MD St rength @ 2% St rain (kN/m) 9.13 8.66 8.23 8.68 0.45

MD Strength @ 5% Strain (lbs) 532 502 518 518 15

MD Strength @ 5% Strain (lbs/ft ) 1084 1024 1056 1055 30MD St rength @ 5% St rain (kN/m) 15.8 14.9 15.4 15.4 0.4

MD St rength @ 10% Strain (lbs) 1581 1543 1587 1570 24MD Strength @ 10% Strain (lbs/ft ) 3222 3145 3233 3200 48MD St rength @ 10% Strain (kN/m) 47.0 45.9 47.2 46.7 0.7

MD Break Elongation (%) 11.9 12.2 12.3 12.1 0.2

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 7.50 7.51 7.16 6.93 7.01 7.98 8.27 7.97 7.77 7.57 0.47

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Quality Control Testing

11-Jul-08

Strata SystemsGEOGRID TEST RESULTS

page 3 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-200 GR Lot 1746 BB Roll 1745055TRI Log #: E2312-52-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 14.3

MD Maximum Strength (lbs) 273 281 285 274 279 279 278 4MD Maximum Strength (lbs/ft) 3895 4013 4070 3920 3979 3979 3976 63MD Maximum Strength (kN/m) 56.9 58.6 59.4 57.2 58.1 58.1 58.1 0.9

MD Strength @ 2% Strain (lbs) 44.1 46.6 45.8 45.8 45.5 45.6 45.5 0.8MD Strength @ 2% Strain (lbs/ft) 629 665 654 654 650 651 651 12MD Strength @ 2% Strain (kN/m) 9.19 9.71 9.55 9.55 9.49 9.50 9.50 0.17

MD Strength @ 5% Strain (lbs) 73.1 80.6 76.1 77.9 76.1 78.8 77.1 2.6MD Strength @ 5% Strain (lbs/ft) 1044 1152 1087 1113 1088 1125 1102 37

MD Strength @ 5% Strain (kN/m) 15.2 16.8 15.9 16.2 15.9 16.4 16.1 0.5

MD Strength @ 10% Strain (lbs) 217 234 225 227 218 230 225 7MD Strength @ 10% Strain (lbs/ft) 3097 3343 3216 3238 3119 3292 3218 96MD Strength @ 10% Strain (kN/m) 45.2 48.8 47.0 47.3 45.5 48.1 47.0 1.4

MD Break Elongation (%) 12.9 12.9 13.4 12.7 13.3 12.9 13.0 0.3

TD - Number of Ribs per foot: 15.4

TD Maximum Strength (lbs) 149 150 151 150 1TD Maxim um Strength (lbs/ft) 2297 2300 2322 2306 14TD Maximum Strength (kN/m) 33.5 33.6 33.9 33.7 0.2

TD Strength @ 2% Strain (lbs) 23.3 23.6 23.8 23.5 0.3TD Strength @ 2% Strain (lbs/ft) 358 363 365 362 4TD Strength @ 2% St rain (kN/m) 5.22 5.30 5.33 5.29 0.06

TD Strength @ 5% Strain (lbs) 32.3 34.3 33.6 33.4 1.0TD Strength @ 5% Strain (lbs/ft) 497 528 517 514 15TD Strength @ 5% St rain (kN/m) 7.26 7.70 7.55 7.50 0.23

TD Strength @ 10% Strain (lbs) 98.4 106 99.9 101 4TD Strength @ 10% Strain ( lbs/ft ) 1513 1629 1536 1559 62TD Strength @ 10% St rain (kN/m) 22.1 23.8 22.4 22.8 0.90

TD Break Elongation (%) 13.9 13.6 13.6 13.7 0.2

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

11-Jul-08

page 4 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-200 GR Lot 1746 BB Roll 1744090TRI Log #: E2312-52-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 7MD Number of Ribs per foot: 14.3

MD Ultimate Strength (lbs) 1845 1907 1893 1882 32MD Ultimate Strength (lbs/ft) 3766 3892 3863 3840 66MD Ultimate Strength (kN/m) 55.0 56.8 56.4 56.1 1.0

MD Strength @ 2% Strain (lbs) 289 292 285 289 3MD Strength @ 2% Strain (lbs/ft) 591 596 582 590 7MD St rength @ 2% St rain (kN/m) 8.63 8.71 8.50 8.61 0.10

MD Strength @ 5% Strain (lbs) 475 487 472 478 8

MD Strength @ 5% Strain (lbs/ft) 969 993 964 975 15MD St rength @ 5% St rain (kN/m) 14.2 14.5 14.1 14.2 0.2

MD St rength @ 10% Strain (lbs) 1445 1492 1324 1420 87MD Strength @ 10% Strain (lbs/ft ) 2949 3046 2702 2899 177MD St rength @ 10% Strain (kN/m) 43.1 44.5 39.4 42.3 2.6

MD Break Elongation (%) 12.4 12.8 13.4 12.9 0.5

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 9.01 8.85 8.41 8.26 8.47 9.41 9.52 9.55 8.73 8.91 0.49

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

11-Jul-08

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

page 5 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

10/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-200 Lot 1747 BB Roll 1747045TRI Log #: E2312-52-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 14.4

MD Maximum Strength (lbs) 277 277 271 275 272 272 274 3MD Maximum Strength (lbs/ft) 3991 3988 3904 3960 3906 3917 3944 41MD Maximum Strength (kN/m) 58.3 58.2 57.0 57.8 57.0 57.2 57.6 0.6

MD Strength @ 2% Strain (lbs) 50.3 48.7 46.8 48.2 46.9 47.7 48.1 1.3MD Strength @ 2% Strain (lbs/ft) 723 700 673 693 675 686 691 19MD Strength @ 2% Strain (kN/m) 10.6 10.2 9.82 10.1 9.85 10.0 10.1 0.3

MD Strength @ 5% Strain (lbs) 107 103 98.4 98.0 103 103 102 3MD Strength @ 5% Strain (lbs/ft) 1535 1474 1415 1409 1475 1484 1465 47

MD Strength @ 5% Strain (kN/m) 22.4 21.5 20.7 20.6 21.5 21.7 21.4 0.69

MD Strength @ 10% Strain (lbs) 259 254 250 249 253 254 253 3MD Strength @ 10% Strain (lbs/ft) 3724 3654 3600 3583 3634 3658 3642 50MD Strength @ 10% Strain (kN/m) 54.4 53.3 52.6 52.3 53.1 53.4 53.2 0.7

MD Break Elongation (%) 11.5 11.9 11.5 12.0 11.7 11.5 11.7 0.2

TD - Number of Ribs per foot: 15.2

TD Maximum Strength (lbs) 134 149 151 144 9TD Maxim um Strength (lbs/ft) 2041 2266 2299 2202 141TD Maximum Strength (kN/m) 29.8 33.1 33.6 32.1 2.05

TD Strength @ 2% Strain (lbs) 24.1 24.3 24.3 24.2 0.1TD Strength @ 2% Strain (lbs/ft) 367 370 371 369 2TD Strength @ 2% St rain (kN/m) 5.36 5.40 5.42 5.39 0.03

TD Strength @ 5% Strain (lbs) 34.3 33.5 34.1 34.0 0.4TD Strength @ 5% Strain (lbs/ft) 523 511 520 518 6TD Strength @ 5% St rain (kN/m) 7.63 7.46 7.59 7.56 0.09

TD Strength @ 10% Strain (lbs) 107 103 104 105 2TD Strength @ 10% Strain ( lbs/ft ) 1631 1576 1589 1599 29TD Strength @ 10% St rain (kN/m) 23.8 23.0 23.2 23.3 0.42

TD Break Elongation (%) 11.6 13.2 13.5 12.8 1.0

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Strata SystemsQuality Control Testing

11-Jul-08

GEOGRID TEST RESULTS

page 8 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

11/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-200 Lot 1747 BB Roll 1747045TRI Log #: E2312-52-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 7MD Number of Ribs per foot: 14.4

MD Ultimate Strength (lbs) 1833 1874 1868 1858 22MD Ultimate Strength (lbs/ft) 3766 3850 3838 3818 45MD Ultimate Strength (kN/m) 55.0 56.2 56.0 55.7 0.7

MD Strength @ 2% Strain (lbs) 339 331 334 335 4MD Strength @ 2% Strain (lbs/ft) 697 680 687 688 9MD St rength @ 2% St rain (kN/m) 10.2 9.92 10.0 10.0 0.1

MD Strength @ 5% Strain (lbs) 689 663 650 668 20

MD Strength @ 5% Strain (lbs/ft ) 1416 1362 1336 1372 41MD St rength @ 5% St rain (kN/m) 20.7 19.9 19.5 20.0 0.6

MD St rength @ 10% Strain (lbs) 1765 1737 1709 1737 28MD Strength @ 10% Strain (lbs/ft ) 3627 3568 3510 3569 58MD St rength @ 10% Strain (kN/m) 53.0 52.1 51.2 52.1 0.9

MD Break Elongation (%) 10.6 11.2 11.4 11.1 0.4

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 9.44 9.41 9.15 10.06 9.57 9.95 8.52 11.32 8.76 9.58 0.82

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

11-Jul-08

GEOGRID TEST RESULTS

Quality Control TestingStrata Systems

page 9 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

12/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-500 Lot 1573 BB Roll 1573015TRI Log #: E2302-20-10

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.1

MD Maximum Strength (lbs) 900 891 894 901 906 889 897 6.70MD Maximum Strength (lbs/ft) 7278 7203 7231 7284 7329 7188 7252 54.2MD Maximum Strength (kN/m) 106 105 106 106 107 105 106 0.79

MD Strength @ 2% Strain (lbs) 135 133 136 140 142 143 138 3.91MD Strength @ 2% Strain (lbs/ft) 1091 1075 1102 1133 1145 1153 1116 31.6MD Strength @ 2% Strain (kN/m) 15.9 15.7 16.1 16.5 16.7 16.8 16.3 0.46

MD Strength @ 5% Strain (lbs) 228 231 232 241 253 261 241 13.4MD Strength @ 5% Strain (lbs/ft) 1847 1867 1876 1952 2049 2112 1951 108

MD Strength @ 5% Strain (kN/m) 27.0 27.3 27.4 28.5 29.9 30.8 28.5 1.58

MD Strength @ 10% Strain (lbs) 695 704 684 718 734 758 715 27.1MD Strength @ 10% Strain (lbs/ft) 5618 5692 5535 5809 5938 6127 5787 219MD Strength @ 10% Strain (kN/m) 82.0 83.1 80.8 84.8 86.7 89.5 84.5 3.20

MD Break Elongation (%) 13.9 13.5 13.8 13.6 13.6 12.8 13.5 0.37

TD - Number of Ribs per foot: 3.8

TD Maximum Strength (lbs) 598 584 593 592 7.26TD Maxim um Strength (lbs/ft) 2291 2237 2272 2267 27.8TD Maximum Strength (kN/m) 33.5 32.7 33.2 33.1 0.41

TD Strength @ 2% Strain (lbs) 89.7 85.0 90.3 88.3 2.90TD Strength @ 2% Strain (lbs/ft) 344 326 346 338 11.1TD Strength @ 2% St rain (kN/m) 5.02 4.75 5.05 4.94 0.16

TD Strength @ 5% Strain (lbs) 129 124 130 128 3.56TD Strength @ 5% Strain (lbs/ft) 495 473 498 489 13.6TD Strength @ 5% St rain (kN/m) 7.22 6.91 7.28 7.13 0.20

TD Strength @ 10% Strain (lbs) 368 329 350 349 19.5TD Strength @ 10% Strain ( lbs/ft ) 1408 1259 1341 1336 74.7TD Strength @ 10% St rain (kN/m) 20.6 18.4 19.6 19.5 1.09

TD Break Elongation (%) 14.4 14.5 14.6 14.5 0.10

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

20-Dec-07

page 6 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

13/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-500 Lot 1573 BB Roll 1573015TRI Log #: E2302-20-10

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.1

MD Ultimate Strength (lbs) 2630 2692 2596 2640 48.6MD Ultimate Strength (lbs/ft) 7091 7258 7000 7116 131MD Ultimate Strength (kN/m) 104 106 102 104 1.91

MD Strength @ 2% Strain (lbs) 412 429 443 428 15.8MD Strength @ 2% Strain (lbs/ft ) 1110 1156 1195 1154 42.6MD St rength @ 2% St rain (kN/m) 16.2 16.9 17.4 16.8 0.62

MD Strength @ 5% Strain (lbs) 704 743 787 745 41.5

MD Strength @ 5% Strain (lbs/ft ) 1897 2004 2121 2007 112MD St rength @ 5% St rain (kN/m) 27.7 29.3 31.0 29.3 1.63

MD St rength @ 10% Strain (lbs) 2181 2241 2298 2240 58.3MD Strength @ 10% Strain (lbs/ft ) 5880 6043 6194 6039 157MD St rength @ 10% Strain (kN/m) 85.8 88.2 90.4 88.2 2.30

MD Break Elongation (%) 12.6 12.9 11.9 12.4 0.52

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 10.83 11.71 11.50 10.91 11.27 11.68 11.57 10.91 11.56 11.33 0.36

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

20-Dec-07

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

page 7 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

14/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-500 Lot 1788 BB Roll 1788020TRI Log #: E2317-40-01

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.3

MD Maximum Strength (lbs) 854 845 838 844 843 852 846 6MD Maximum Strength (lbs/ft) 7066 6988 6928 6977 6975 7046 6997 51MD Maximum Strength (kN/m) 103 102 101 102 102 103 102 1

MD Strength @ 2% Strain (lbs) 132 133 132 133 137 135 134 2MD Strength @ 2% Strain (lbs/ft) 1094 1097 1088 1098 1134 1120 1105 18MD Strength @ 2% Strain (kN/m) 16.0 16.0 15.9 16.0 16.6 16.3 16.1 0.3

MD Strength @ 5% Strain (lbs) 239 241 231 239 243 245 240 5MD Strength @ 5% Strain (lbs/ft) 1973 1995 1913 1979 2005 2028 1982 39

MD Strength @ 5% Strain (kN/m) 28.8 29.1 27.9 28.9 29.3 29.6 28.9 0.6

MD Strength @ 10% Strain (lbs) 718 717 693 714 719 726 715 11MD Strength @ 10% Strain (lbs/ft) 5934 5932 5734 5906 5948 6006 5910 92MD Strength @ 10% Strain (kN/m) 86.6 86.6 83.7 86.2 86.8 87.7 86.3 1.3

MD Break Elongation (%) 12.4 12.5 12.6 12.5 12.1 12.4 12.4 0.2

TD - Number of Ribs per foot: 3.8

TD Maximum Strength (lbs) 555 560 560 559 3TD Maxim um Strength (lbs/ft) 2125 2143 2143 2137 10TD Maximum Strength (kN/m) 31.0 31.3 31.3 31.2 0.2

TD Strength @ 2% Strain (lbs) 84.7 85.1 82.1 84.0 1.7TD Strength @ 2% Strain (lbs/ft) 324 326 314 321 6TD Strength @ 2% St rain (kN/m) 4.73 4.76 4.58 4.69 0.09

TD Strength @ 5% Strain (lbs) 124 124 121 123 2TD Strength @ 5% Strain (lbs/ft) 475 475 462 471 8TD Strength @ 5% St rain (kN/m) 6.94 6.94 6.74 6.87 0.11

TD Strength @ 10% Strain (lbs) 364 376 348 363 14TD Strength @ 10% Strain ( lbs/ft ) 1392 1440 1330 1387 55TD Strength @ 10% St rain (kN/m) 20.3 21.0 19.4 20.3 0.8

TD Break Elongation (%) 13.0 13.2 13.5 13.2 0.2

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Strata SystemsQuality Control Testing

GEOGRID TEST RESULTS

28-Aug-08

page 2 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

15/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-500 Lot 1788 BB Roll 1788020TRI Log #: E2317-40-01

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.3

MD Ultimate Strength (lbs) 2462 2465 2499 2475 20MD Ultimate Strength (lbs/ft) 6786 6796 6889 6824 56MD Ultimate Strength (kN/m) 99.1 99.2 101 99.6 0.8

MD Strength @ 2% Strain (lbs) 398 406 404 403 5MD Strength @ 2% Strain (lbs/ft ) 1096 1120 1113 1110 13MD St rength @ 2% St rain (kN/m) 16.0 16.4 16.3 16.2 0.2

MD Strength @ 5% Strain (lbs) 726 693 705 708 16

MD Strength @ 5% Strain (lbs/ft ) 2000 1911 1944 1952 45MD St rength @ 5% St rain (kN/m) 29.2 27.9 28.4 28.5 0.7

MD St rength @ 10% Strain (lbs) 2164 2107 2089 2120 39MD Strength @ 10% Strain (lbs/ft ) 5964 5807 5758 5843 108MD St rength @ 10% Strain (kN/m) 87.1 84.8 84.1 85.3 1.6

MD Break Elongation (%) 11.8 12.2 12.4 12.1 0.3

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 12.12 11.62 12.21 11.29 11.50 12.07 11.75 11.52 11.50 11.73 0.33

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Quality Control Testing

28-Aug-08

Strata SystemsGEOGRID TEST RESULTS

page 3 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

16/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-500 Lot 1790 BB Roll 1790072TRI Log #: E2317-40-01

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.2

MD Maximum Strength (lbs) 846 844 849 845 830 838 842 7MD Maximum Strength (lbs/ft) 6929 6913 6951 6918 6802 6861 6896 55MD Maximum Strength (kN/m) 101 101 101 101 99.3 100 101 1

MD Strength @ 2% Strain (lbs) 127 124 122 126 119 121 123 3MD Strength @ 2% Strain (lbs/ft) 1040 1014 996 1028 975 993 1008 24MD Strength @ 2% Strain (kN/m) 15.2 14.8 14.5 15.0 14.2 14.5 14.7 0.4

MD Strength @ 5% Strain (lbs) 211 206 200 212 195 201 204 7MD Strength @ 5% Strain (lbs/ft) 1730 1690 1642 1738 1599 1644 1674 55

MD Strength @ 5% Strain (kN/m) 25.3 24.7 24.0 25.4 23.4 24.0 24.4 0.8

MD Strength @ 10% Strain (lbs) 662 653 634 669 637 642 650 14MD Strength @ 10% Strain (lbs/ft) 5422 5349 5191 5477 5217 5260 5319 115MD Strength @ 10% Strain (kN/m) 79.2 78.1 75.8 80.0 76.2 76.8 77.7 1.7

MD Break Elongation (%) 13.0 13.1 13.4 13.0 12.9 13.2 13.1 0.2

TD - Number of Ribs per foot: 3.9

TD Maximum Strength (lbs) 552 544 538 545 7TD Maxim um Strength (lbs/ft) 2130 2100 2075 2102 28TD Maximum Strength (kN/m) 31.1 30.7 30.3 30.7 0.4

TD Strength @ 2% Strain (lbs) 86.0 79.7 72.0 79.3 7.0TD Strength @ 2% Strain (lbs/ft) 332 308 278 306 27TD Strength @ 2% St rain (kN/m) 4.84 4.49 4.06 4.46 0.39

TD Strength @ 5% Strain (lbs) 124 117 106 116 9TD Strength @ 5% Strain (lbs/ft) 478 451 409 446 35TD Strength @ 5% St rain (kN/m) 6.97 6.58 5.97 6.51 0.51

TD Strength @ 10% Strain (lbs) 383 345 289 339 47TD Strength @ 10% Strain ( lbs/ft ) 1478 1330 1114 1307 183TD Strength @ 10% St rain (kN/m) 21.6 19.4 16.3 19.1 2.7

TD Break Elongation (%) 13.4 13.4 14.1 13.6 0.4

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

28-Aug-08

page 6 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-500 Lot 1790 BB Roll 1790072TRI Log #: E2317-40-01

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.2

MD Ultimate Strength (lbs) 2467 2466 2465 2466 1MD Ultimate Strength (lbs/ft) 6735 6732 6730 6733 2MD Ultimate Strength (kN/m) 98.3 98.3 98.3 98.3 0.0

MD Strength @ 2% Strain (lbs) 365 368 384 373 10MD St rength @ 2% St rain (lbs/ ft ) 997 1005 1049 1017 28MD St rength @ 2% St rain (kN/m) 14.6 14.7 15.3 14.8 0.4

MD Strength @ 5% Strain (lbs) 591 607 636 611 22

MD Strength @ 5% Strain (lbs/ft ) 1615 1657 1736 1669 61MD St rength @ 5% St rain (kN/m) 23.6 24.2 25.3 24.4 0.9

MD St rength @ 10% Strain (lbs) 1906 1954 2025 1961 60MD Strength @ 10% Strain (lbs/ft ) 5203 5333 5528 5355 164MD St rength @ 10% Strain (kN/m) 76.0 77.9 80.7 78.2 2.4

MD Break Elongation (%) 12.9 12.7 12.6 12.7 0.2

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 11.20 11.06 11.44 10.96 11.00 11.71 12.29 12.19 12.57 11.60 0.61

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Quality Control Testing

GEOGRID TEST RESULTSStrata Systems

28-Aug-08

page 7 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-550 Lot 1718 BB Roll 1718012TRI Log #: E2310-86-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.1

MD Maximum Strength (lbs) 983 1001 1009 1000 1017 999 1001 11MD Maximum Strength (lbs/ft) 8003 8146 8211 8145 8283 8134 8154 93MD Maximum Strength (kN/m) 117 119 120 119 121 119 119 1

MD Strength @ 2% Strain (lbs) 160 164 162 162 162 157 161 2MD Strength @ 2% Strain (lbs/ft) 1307 1337 1315 1321 1322 1279 1313 20MD Strength @ 2% Strain (kN/m) 19.1 19.5 19.2 19.3 19.3 18.7 19.2 0.3

MD Strength @ 5% Strain (lbs) 282 281 279 286 276 280 281 4MD Strength @ 5% Strain (lbs/ft) 2299 2289 2269 2329 2244 2281 2285 29

MD Strength @ 5% Strain (kN/m) 33.6 33.4 33.1 34.0 32.8 33.3 33.4 0.42

MD Strength @ 10% Strain (lbs) 831 822 825 843 815 829 828 10MD Strength @ 10% Strain (lbs/ft) 6763 6690 6720 6865 6635 6751 6737 78MD Strength @ 10% Strain (kN/m) 98.7 97.7 98.1 100 96.9 98.6 98.4 1.1

MD Break Elongation (%) 12.1 12.5 12.7 12.3 13.2 12.5 12.5 0.4

TD - Number of Ribs per foot: 7.6

TD Maximum Strength (lbs) 332 333 330 332 1TD Maxim um Strength (lbs/ft) 2517 2521 2504 2514 9TD Maximum Strength (kN/m) 36.8 36.8 36.6 36.7 0.13

TD Strength @ 2% Strain (lbs) 51.6 51.2 50.8 51.2 0.4TD Strength @ 2% Strain (lbs/ft) 391 388 385 388 3TD Strength @ 2% St rain (kN/m) 5.71 5.66 5.62 5.67 0.04

TD Strength @ 5% Strain (lbs) 73.2 74.2 74.3 73.9 0.6TD Strength @ 5% Strain (lbs/ft) 555 562 563 560 4TD Strength @ 5% St rain (kN/m) 8.10 8.21 8.22 8.18 0.06

TD Strength @ 10% Strain (lbs) 196 207 204 202 6TD Strength @ 10% Strain ( lbs/ft ) 1488 1568 1546 1534 42TD Strength @ 10% St rain (kN/m) 21.7 22.9 22.6 22.4 0.61

TD Break Elongation (%) 14.8 14.5 14.5 14.6 0.2

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Strata SystemsQuality Control Testing

30-May-08

GEOGRID TEST RESULTS

page 7 of 8GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

19/27

TRI / Environmental, Inc.A Texas Research International Company

Material: SG-550 Lot 1718 BB Roll 1718012TRI Log #: E2310-86-04

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.1

MD Ultimate Strength (lbs) 3033 3030 2951 3005 47MD Ultimate Strength (lbs/ft) 8231 8223 8009 8154 126MD Ultimate Strength (kN/m) 120 120 117 119 2

MD Strength @ 2% Strain (lbs) 501 493 472 489 15MD Strength @ 2% Strain (lbs/ft ) 1360 1338 1280 1326 41MD St rength @ 2% St rain (kN/m) 19.9 19.5 18.7 19.4 0.6

MD Strength @ 5% Strain (lbs) 912 898 855 888 30

MD Strength @ 5% Strain (lbs/ft ) 2475 2436 2320 2410 81MD St rength @ 5% St rain (kN/m) 36.1 35.6 33.9 35.2 1.2

MD St rength @ 10% Strain (lbs) 2587 2597 2528 2570 37MD Strength @ 10% Strain (lbs/ft ) 7021 7047 6859 6976 102MD Strength @ 10% Strain (kN/m ) 103 103 100 102 1

MD Break Elongation (%) 12.5 12.4 12.0 12.3 0.3

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 13.16 13.64 14.28 13.87 13.60 14.47 14.46 13.94 13.52 13.88 0.45

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

30-May-08

GEOGRID TEST RESULTS

Quality Control TestingStrata Systems

page 8 of 8GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

8/8/2019 Typical Test Cert Fro Strata Grids

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-550 Lot 1793 BB Roll 1793029TRI Log #: E2317-42-07

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.8

MD Maximum Strength (lbs) 1061 1053 1049 1039 1055 1031 1048 11MD Maximum Strength (lbs/ft) 9359 9289 9250 9159 9302 9088 9241 100MD Maximum Strength (kN/m) 137 136 135 134 136 133 135 1

MD Strength @ 2% Strain (lbs) 167 169 159 165 161 158 163.2 4.7MD Strength @ 2% Strain (lbs/ft) 1473 1494 1402 1457 1419 1391 1439 41MD Strength @ 2% Strain (kN/m) 21.5 21.8 20.5 21.3 20.7 20.3 21.02 0.60

MD Strength @ 5% Strain (lbs) 347 347 308 333 321 316 329 16.3MD Strength @ 5% Strain (lbs/ft) 3060 3058 2716 2937 2831 2787 2898 144

MD Strength @ 5% Strain (kN/m) 44.7 44.7 39.7 42.9 41.3 40.7 42.3 2.1

MD Strength @ 10% Strain (lbs) 943 948 910 927 925 920 929 14MD Strength @ 10% Strain (lbs/ft) 8318 8364 8024 8173 8160 8115 8192 127MD Strength @ 10% Strain (kN/m) 121 122 117 119 119 118 120 2

MD Break Elongation (%) 12.2 11.9 12.1 11.8 12.1 11.6 11.9 0.2

TD - Number of Ribs per foot: 7.6

TD Maximum Strength (lbs) 326 327 330 328 2TD Maxim um Strength (lbs/ft) 2472 2479 2505 2485 18TD Maximum Strength (kN/m) 36.1 36.2 36.6 36.3 0.3

TD Strength @ 2% Strain (lbs) 54.3 52.3 53.1 53.2 1.0TD Strength @ 2% Strain (lbs/ft) 412 396 402 404 8TD Strength @ 2% St rain (kN/m) 6.02 5.79 5.88 5.89 0.12

TD Strength @ 5% Strain (lbs) 87.2 85.2 84.5 85.6 1.4TD Strength @ 5% Strain (lbs/ft) 662 646 641 650 11TD Strength @ 5% St rain (kN/m) 9.66 9.44 9.36 9.48 0.16

TD Strength @ 10% Strain (lbs) 261 263 253 259 6TD Strength @ 10% Strain ( lbs/ft ) 1983 1994 1916 1964 42TD Strength @ 10% St rain (kN/m) 29.0 29.1 28.0 28.7 0.6

TD Break Elongation (%) 12.5 12.5 12.9 12.6 0.2

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

03-Sep-08

page 3 of 8GeosyntheticTesting.com

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-550 Lot 1793 BB Roll 1793029TRI Log #: E2317-42-07

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.8

MD Ultimate Strength (lbs) 3080 3059 3088 3076 15MD Ultimate Strength (lbs/ft) 9052 8992 9076 9040 43MD Ultimate Strength (kN/m) 132 131 133 132 1

MD Strength @ 2% Strain (lbs) 481 488 481 483 4MD Strength @ 2% Strain (lbs/ft ) 1413 1435 1413 1421 13MD St rength @ 2% St rain (kN/m) 20.6 21.0 20.6 20.7 0.2

MD Strength @ 5% Strain (lbs) 942 968 916 942 26

MD Strength @ 5% Strain (lbs/ft ) 2768 2844 2693 2768 76MD St rength @ 5% St rain (kN/m) 40.4 41.5 39.3 40.4 1.1

MD St rength @ 10% Strain (lbs) 2708 2699 2642 2683 36MD Strength @ 10% Strain (lbs/ft ) 7958 7933 7766 7886 105MD Strength @ 10% Strain (kN/m ) 116 116 113 115 2

MD Break Elongation (%) 12.0 11.9 12.2 12.1 0.2

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 14.74 13.71 14.09 14.20 13.99 14.48 14.39 13.96 13.98 14.17 0.32

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

03-Sep-08

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

page 4 of 8GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-600 Lot 1798 BB Roll 1798076TRI Log #: E2317-51-01

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.2

MD Maximum Strength (lbs) 1148 1145 1142 1144 1151 1155 1148 5MD Maximum Strength (lbs/ft) 9400 9378 9354 9370 9427 9463 9398 40MD Maximum Strength (kN/m) 137 137 137 137 138 138 137 1

MD Strength @ 2% Strain (lbs) 184 179 188 186 181 179 183 4MD Strength @ 2% Strain (lbs/ft) 1504 1465 1539 1524 1484 1464 1497 31MD Strength @ 2% Strain (kN/m) 22.0 21.4 22.5 22.3 21.7 21.4 21.9 0.5

MD Strength @ 5% Strain (lbs) 366 355 369 373 355 351 362 9MD Strength @ 5% Strain (lbs/ft) 2998 2909 3023 3055 2910 2876 2962 73

MD Strength @ 5% Strain (kN/m) 43.8 42.5 44.1 44.6 42.5 42.0 43.2 1.1

MD Strength @ 10% Strain (lbs) 1036 1026 1032 1044 1013 1012 1027 13MD Strength @ 10% Strain (lbs/ft) 8486 8403 8454 8547 8296 8287 8412 104MD Strength @ 10% Strain (kN/m) 124 123 123 125 121 121 123 2

MD Break Elongation (%) 11.7 11.7 11.5 11.5 12.0 12.0 11.8 0.2

TD - Number of Ribs per foot: 3.8

TD Maximum Strength (lbs) 624 600 614 612 12TD Maxim um Strength (lbs/ft) 2374 2285 2337 2332 45TD Maximum Strength (kN/m) 34.7 33.4 34.1 34.0 0.7

TD Strength @ 2% Strain (lbs) 94.9 91.9 93.8 93.5 1.5TD Strength @ 2% Strain (lbs/ft) 361 350 357 356 6TD Strength @ 2% St rain (kN/m) 5.27 5.11 5.22 5.20 0.08

TD Strength @ 5% Strain (lbs) 142 136 142 140 3TD Strength @ 5% Strain (lbs/ft) 539 519 542 533 12TD Strength @ 5% St rain (kN/m) 7.87 7.58 7.91 7.79 0.18

TD Strength @ 10% Strain (lbs) 432 410 446 429 18TD Strength @ 10% Strain ( lbs/ft ) 1647 1563 1696 1635 67TD Strength @ 10% St rain (kN/m) 24.0 22.8 24.8 23.9 1.0

TD Break Elongation (%) 13.6 13.2 13.2 13.3 0.2

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

02-Sep-08

page 6 of 9GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-600 Lot 1798 BB Roll 1798076TRI Log #: E2317-51-01

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.2

MD Ultimate Strength (lbs) 3360 3241 3419 3340 91MD Ultimate Strength (lbs/ft) 9172 8848 9333 9118 247MD Ultimate Strength (kN/m) 134 129 136 133 4

MD Strength @ 2% Strain (lbs) 559 539 548 548 10MD Strength @ 2% Strain (lbs/ft ) 1525 1471 1495 1497 27MD St rength @ 2% St rain (kN/m) 22.3 21.5 21.8 21.9 0.4

MD St rength @ 5% St rain (lbs) 1134 1101 1154 1130 27

MD Strength @ 5% Strain (lbs/ft ) 3095 3006 3150 3084 73MD St rength @ 5% St rain (kN/m) 45.2 43.9 46.0 45.0 1.1

MD St rength @ 10% Strain (lbs) 3131 3072 3130 3111 34MD Strength @ 10% Strain (lbs/ft ) 8546 8386 8544 8492 92MD Strength @ 10% Strain (kN/m ) 125 122 125 124 1

MD Break Elongation (%) 11.1 10.8 11.5 11.1 0.3

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 13.15 12.89 13.15 13.87 14.35 13.95 13.69 12.90 13.24 13.46 0.52

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Quality Control Testing

GEOGRID TEST RESULTSStrata Systems

02-Sep-08

page 7 of 9GeosyntheticTesting.com

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-700 Lot 1731 BB Roll 1731011TRI Log #: E2312-22-08

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.1

MD Maximum Strength (lbs) 1552 1530 1541 1546 1547 1529 1541 10MD Maximum St rength (lbs/ ft ) 12507 12330 12423 12458 12472 12322 12419 77MD Maximum Strength (kN/m) 183 180 181 182 182 180 181 1

MD Strength @ 2% Strain (lbs) 207 213 223 219 222 219 217 6MD Strength @ 2% Strain (lbs/ft) 1667 1713 1794 1761 1786 1766 1748 49MD Strength @ 2% Strain (kN/m) 24.3 25.0 26.2 25.7 26.1 25.8 25.5 0.7

MD Strength @ 5% Strain (lbs) 420 450 425 414 423 422 426 12MD Strength @ 5% Strain (lbs/ft) 3387 3623 3427 3340 3408 3399 3431 99

MD Strength @ 5% Strain (kN/m) 49.4 52.9 50.0 48.8 49.8 49.6 50.1 1.4

MD Strength @ 10% Strain (lbs) 1278 1310 1278 1243 1269 1264 1274 22MD Strength @ 10% Strain (lbs/ft ) 10302 10557 10302 10021 10231 10184 10266 176MD Strength @ 10% Strain (kN/m) 150 154 150 146 149 149 150 3

MD Break Elongation (%) 12.9 12.5 12.9 13.3 13.1 12.8 12.9 0.3

TD - Number of Ribs per foot: 3.8

TD Maximum Strength (lbs) 607 599 591 599 8TD Maxim um Strength (lbs/ft) 2307 2276 2249 2277 29TD Maximum Strength (kN/m) 33.7 33.2 32.8 33.2 0.4

TD Strength @ 2% Strain (lbs) 94.5 93.0 95.8 94.4 1.4TD Strength @ 2% Strain (lbs/ft) 359 353 364 359 5TD Strength @ 2% St rain (kN/m) 5.25 5.16 5.31 5.24 0.08

TD Strength @ 5% Strain (lbs) 141 140 143 141 1TD Strength @ 5% Strain (lbs/ft) 536 533 544 538 5TD Strength @ 5% St rain (kN/m) 7.82 7.79 7.94 7.85 0.08

TD Strength @ 10% Strain (lbs) 414 406 422 414 8TD Strength @ 10% Strain ( lbs/ft ) 1575 1545 1603 1574 29TD Strength @ 10% St rain (kN/m) 23.0 22.6 23.4 23.0 0.42

TD Break Elongation (%) 14.1 13.7 13.1 13.6 0.5

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

Quality Control Testing

12-Jun-08

GEOGRID TEST RESULTSStrata Systems

page 6 of 7GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-700 Lot 1731 BB Roll 1731011TRI Log #: E2312-22-08

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.1

MD Ultimate Strength (lbs) 4539 4651 4494 4561 81MD Ultimate Strength ( lbs/ft ) 12195 12494 12073 12254 217MD Ultimate Strength (kN/m) 178 182 176 179 3

MD Strength @ 2% Strain (lbs) 674 695 697 689 13MD Strength @ 2% Strain (lbs/ft ) 1812 1868 1873 1851 34MD St rength @ 2% St rain (kN/m) 26.5 27.3 27.3 27.0 0.5

MD St rength @ 5% St rain (lbs) 1482 1366 1317 1388 85

MD Strength @ 5% Strain (lbs/ft ) 3982 3670 3538 3730 228MD St rength @ 5% St rain (kN/m) 58.1 53.6 51.7 54.5 3.3

MD St rength @ 10% Strain (lbs) 4061 3974 3884 3973 89MD Strength @ 10% Strain (lbs/ft) 10910 10677 10434 10674 238MD Strength @ 10% Strain (kN/m ) 159 156 152 156 3

MD Break Elongation (%) 11.7 12.7 12.1 12.1 0.5

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 16.07 16.76 17.05 16.64 16.47 15.58 15.23 15.80 15.92 16.17 0.60

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

12-Jun-08

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

page 7 of 7GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-700 Lot 1761 BB Roll 1761028TRI Log #: E2312-70-05

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Single Rib Tensile Properties (ASTM D 6637, Method A)

MD - Number of Ribs per foot: 8.1

MD Maximum Strength (lbs) 1513 1488 1474 1485 1492 1520 1495 18MD Maximum St rength (lbs/ ft ) 12193 11997 11881 11969 12023 12254 12053 142MD Maximum Strength (kN/m) 178 175 173 175 176 179 176 2

MD Strength @ 2% Strain (lbs) 211 227 232 230 239 233 228 10MD Strength @ 2% Strain (lbs/ft) 1699 1826 1866 1854 1924 1880 1841 77MD Strength @ 2% Strain (kN/m) 24.8 26.7 27.2 27.1 28.1 27.4 26.9 1.1

MD Strength @ 5% Strain (lbs) 447 487 488 455 498 495 478 22MD Strength @ 5% Strain (lbs/ft) 3605 3929 3936 3664 4016 3986 3856 176

MD Strength @ 5% Strain (kN/m) 52.6 57.4 57.5 53.5 58.6 58.2 56.3 2.6

MD Strength @ 10% Strain (lbs) 1321 1343 1344 1297 1353 1346 1334 21MD Strength @ 10% Strain (lbs/ft ) 10647 10824 10831 10453 10901 10846 10750 169MD Strength @ 10% Strain (kN/m) 155 158 158 153 159 158 157 2

MD Break Elongation (%) 12.1 11.8 11.5 12.2 11.6 12.0 11.9 0.3

TD - Number of Ribs per foot: 3.8

TD Maximum Strength (lbs) 590 599 590 593 5TD Maxim um Strength (lbs/ft) 2247 2279 2247 2258 18TD Maximum Strength (kN/m) 32.8 33.3 32.8 33.0 0.3

TD Strength @ 2% Strain (lbs) 99.9 102 102 101 1TD Strength @ 2% Strain (lbs/ft) 380 387 390 386 5TD Strength @ 2% St rain (kN/m) 5.55 5.65 5.70 5.63 0.07

TD Strength @ 5% Strain (lbs) 178 178 184 180 3TD Strength @ 5% Strain (lbs/ft) 676 677 699 684 13TD Strength @ 5% St rain (kN/m) 9.88 9.89 10.2 9.99 0.18

TD Strength @ 10% Strain (lbs) 535 538 543 539 4TD Strength @ 10% Strain ( lbs/ft ) 2037 2046 2068 2051 16TD Strength @ 10% St rain (kN/m) 29.7 29.9 30.2 29.9 0.23

TD Break Elongation (%) 11.4 11.3 11.1 11.3 0.1

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test m ethod listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor m akes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

23-Jul-08

page 10 of 11GeosyntheticTesting.com

9063 Bee Caves Road / Austin, TX 78733 / 512 263 2101 / fax: 512 263 2558

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TRI / Environmental, Inc.A Texas Research International Company

Material: SG-700 Lot 1761 BB Roll 1761028TRI Log #: E2312-70-05

STD.PARAMETER TEST REPLICATE NUMBER MEAN DEV.

1 2 3 4 5 6 7 8 9

Wide Width Tensile Properties (ASTM D 6637, Method B)

MD Number of Ribs per Specimen: 3MD Number of Ribs per foot: 8.1

MD Ultimate Strength (lbs) 4360 4479 4409 4416 60MD Ultimate Strength ( lbs/ft ) 11714 12033 11846 11864 160MD Ultimate Strength (kN/m) 171 176 173 173 2

MD Strength @ 2% Strain (lbs) 703 733 758 731 28MD Strength @ 2% Strain (lbs/ft ) 1888 1969 2037 1964 74MD St rength @ 2% St rain (kN/m) 27.6 28.7 29.7 28.7 1.1

MD St rength @ 5% St rain (lbs) 1511 1630 1638 1593 71

MD Strength @ 5% Strain (lbs/ft ) 4060 4379 4400 4280 190MD St rength @ 5% St rain (kN/m) 59.3 63.9 64.2 62.5 2.8

MD St rength @ 10% Strain (lbs) 4037 4185 4084 4102 76MD Strength @ 10% Strain (lbs/ft) 10844 11244 10973 11020 204MD Strength @ 10% Strain (kN/m ) 158 164 160 161 3

MD Break Elongation (%) 11.5 11.5 11.5 11.5 0.0

Mass/Unit Area (ASTM D 5261)

Mass/unit area (oz/sq.yd) 15.96 15.80 16.09 15.69 16.08 16.13 16.15 16.30 16.08 16.03 0.19

MD - Machine Direction TD - Transverse/Cross Machine Direction

The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not applyto samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.

GEOGRID TEST RESULTSStrata Systems

Quality Control Testing

23-Jul-08