Plant name: Boral Bricks Inc. DIOXIN-FURAN PARTICLE CATCH DIOXIN-FURAN EMISSION CALCULATION Location: Salisbury, NC FACID: BORA-17 Test date: 9/22/2010 Equipment: Kiln 6BK Control device: DIFF Measured wt, pg Measured wt, ng Volum. Volum. Gas Gas Emission Emission Process Compound Mass (pg) Flag Mass (pg) Flag Mass (pg) Flag Congener Run 1 Run 2 Run 3 Run Test Flow rate, Flow rate, volume, volume, % Stack gas O2conc., Velocity, Mass, Run Concentration, rate, rate, rate, Emission factor,
Total TCDD 24.8BDL 38.8ADL 48ADL Total TCDD 0.0248 0.0388 0.048 Pollutant No. Method ACFM DSCFM DSCF DSCM Moisture temp., F % ft/sec ng Flag gr/dscf ng/dscm ng/dscm @7%O2 g/hr lb/hr ton/hr g/ton lb/ton Total PeCDD 6.86ADL 19ADL 8.17ADL Total PeCDD 0.00686 0.019 0.00817 CDD/CDF 1 M23 85,732 50,241 173.63 4.92 4.77 381 18.9 46.6 0.4306 DLL 3.83E-11 0.0876 0.597 7.48E-06 1.65E-08 20.26 3.69E-07 8.13E-10 Total HxCDD 13.8ADL 11.1 ADL 12.5ADL Total HxCDD 0.0138 0.0111 0.0125 2 87,824 50,706 175.42 4.97 5.62 387 19.1 47.7 0.3128 DLL 2.75E-11 0.0630 0.473 5.42E-06 1.20E-08 20.26 2.68E-07 5.90E-10 Total HpCDD 7.63ADL 18.4ADL 15BDL Total HpCDD 0.00763 0.0184 0.015 3 87,333 50,867 182.38 5.16 5.26 382 19.1 47.4 0.3390 DLL 2.87E-11 0.0656 0.4931 5.67E-06 1.25E-08 20.26 2.80E-07 6.17E-10 Total OCDD 82.3ADL 63.1 ADL 44.3ADL Total OCDD 0.0823 0.0631 0.0443 Average 86,963 50,605 177.14 5.02 5.22 383.4 19.0 47.2 3.15E-11 0.0721 0.521 6.19E-06 1.36E-08 20.3 3.06E-07 6.74E-10 Total dioxins 0.13539 0.1504 0.12797 TEQ 1 M23 85,732 50,241 173.63 4.92 4.77 381 18.9 46.6 0.006873 DLL 6.11E-13 0.001398 0.009524 1.19E-07 2.63E-10 20.26 5.89E-09 1.30E-11 Total TCDF 241 ADL 139ADL 154ADL Total TCDF 0.241 0.139 0.154 2 87,824 50,706 175.42 4.97 5.62 387 19.1 47.7 0.005279 DLL 4.64E-13 0.001063 0.007983 9.16E-08 2.02E-10 20.26 4.52E-09 9.96E-12 Total PeCDF 40ADL 11 ADL 31.6ADL Total PeCDF 0.04 0.011 0.0316 3 87,333 50,867 182.38 5.16 5.26 382 19.1 47.4 0.006298 DLL 5.33E-13 0.001219 0.009162 1.05E-07 2.32E-10 20.26 5.20E-09 1.15E-11 Total HxCDF 7.63ADL 3.97ADL 14ADL Total HxCDF 0.00763 0.00397 0.014 Average 86,963 50,605 177.14 5.02 5.22 383.4 19.0 47.2 5.36E-13 0.001227 0.008890 1.05E-07 2.32E-10 20.3 5.20E-09 1.15E-11 Total HpCDF 2.04ADL 4.74 BDL 5.3ADL Total HpCDF 0.00204 0.00474 0.0053 Total OCDF 4.54ADL 3.68ADL 6.11 ADL Total OCDF 0.00454 0.00368 0.00611 Total furans 0.29521 0.16239 0.21101 **TOTAL CDD/CDF** 0.4306 0.3128 0.3390

Measured wt, ng TEQ, ng Congener Mass (pg) Flag Mass (pg) Flag Mass (pg) Flag Congener Run 1 Run 2 Run 3 Congener Run 1 Run 2 Run 3 TEF 2,3,7,8-TCDD 1.54 BDL 1.11 BDL 1.41 BDL 2,3,7,8 TCDD 0.00154 0.00111 0.00141 2,3,7,8 TCDD 0.0015 0.0011 0.0014 1 1,2,3,7,8-PeCDD 1.43BDL 1.32ADL 1.31 BDL 1,2,3,7,8 PeCDD 0.00143 0.00132 0.00131 1,2,3,7,8 PeCDD 0.0014 0.0013 0.0013 1 1,2,3,4,7,8-HxCDD 1.27BDL 0.84 BDL 1.2 BDL 1,2,3,4,7,8 HxCDD 0.00127 0.00084 0.0012 1,2,3,4,7,8 HxCDD 0.0001 8E-05 0.0001 0.1 1,2,3,6,7,8-HxCDD 1.25BDL 0.878BDL 1.17BDL 1,2,3,6,7,8 HxCDD 0.00125 0.00088 0.00117 1,2,3,6,7,8 HxCDD 0.0001 9E-05 0.0001 0.1 1,2,3,7,8,9-HxCDD 1.34 BDL 1.7ADL 2.76ADL 1,2,3,7,8,9 HxCDD 0.00134 0.0017 0.00276 1,2,3,7,8,9 HxCDD 0.0001 0.0002 0.0003 0.1 1,2,3,4,6,7,8-HpCDD 7.63ADL 7.64ADL 7.66ADL 1,2,3,4,6,7,8 HpCDD 0.00763 0.00764 0.00766 1,2,3,4,6,7,8 HpCDD 8E-05 8E-05 8E-05 0.01 OCDD 82.3ADL 63.1 ADL 44.3ADL Total OCDD 0.0823 0.0631 0.0443 Total OCDD 2E-05 2E-05 1E-05 0.0003 Total CDD congeners 0.09676 0.07659 0.05981 Total CDD congeners 0.0035 0.0029 0.0033 Measured wt, ng TEQ, ng 2,3,7,8-TCDF 14.1 ADL 9.28ADL 7.41 ADL 2,3,7,8 TCDF 0.0141 0.00928 0.00741 2,3,7,8 TCDF 0.0014 0.0009 0.0007 0.1 1,2,3,7,8-PeCDF 3.85ADL 2.68ADL 3.12ADL 1,2,3,7,8 PeCDF 0.00385 0.00268 0.00312 1,2,3,7,8 PeCDF 0.0001 8E-05 9E-05 0.03 2,3,4,7,8-PeCDF 3.42ADL 2.58ADL 4.01 ADL 2,3,4,7,8 PeCDF 0.00342 0.00258 0.00401 2,3,4,7,8 PeCDF 0.001 0.0008 0.0012 0.3 1,2,3,4,7,8-HxCDF 2.76ADL 2.04ADL 2.99ADL 1,2,3,4,7,8 HxCDF 0.00276 0.00204 0.00299 1,2,3,4,7,8 HxCDF 0.0003 0.0002 0.0003 0.1 1,2,3,6,7,8-HxCDF 2.9ADL 1.92ADL 2.6ADL 1,2,3,6,7,8 HxCDF 0.0029 0.00192 0.0026 1,2,3,6,7,8 HxCDF 0.0003 0.0002 0.0003 0.1 2,3,4,6,7,8-HxCDF 1.42ADL 0.934ADL 1.89ADL 2,3,4,6,7,8 HxCDF 0.00142 0.00093 0.00189 2,3,4,6,7,8 HxCDF 0.0001 9E-05 0.0002 0.1 1,2,3,7,8,9-HxCDF 0.957 BDL 0.892 BDL 1.05BDL 1,2,3,7,8,9 HxCDF 0.00096 0.00089 0.00105 1,2,3,7,8,9 HxCDF 1E-04 9E-05 0.0001 0.1 1,2,3,4,6,7,8-HpCDF 4.76ADL 3.89ADL 5.23ADL 1,2,3,4,6,7,8 HpCDF 0.00476 0.00389 0.00523 1,2,3,4,6,7,8 HpCDF 5E-05 4E-05 5E-05 0.01 1,2,3,4,7,8,9-HpCDF 1.23BDL 1.06 BDL 3.06ADL 1,2,3,4,7,8,9 HpCDF 0.00123 0.00106 0.00306 1,2,3,4,7,8,9 HpCDF 1E-05 1E-05 3E-05 0.01 OCDF 4.54ADL 3.68ADL 6.11 ADL Total OCDF 0.00454 0.00368 0.00611 Total OCDF 1E-06 1E-06 2E-06 0.0003 Total CDF congeners 0.03994 0.02896 0.03747 Total CDF congeners 0.0034 0.0024 0.003 TOTAL CDD/CDF 0.1367 0.10554 0.09728 **TOTAL CDD/CDF (TEQ)** ###### ###### ###### Run 1 Run 2 Run 3

Run 1 Run 2 Run 3

09000064819365e1 Sample 12/1/2014