SUMMARY OF RESULTS EPA METHOD 29 Determination of PM & Chromium Emissions Guardian Fiberglass Inwood, WV Line 1 Melter Baghouse Stack Run Number 1 2 3 Avg Date: 02/21/12 02/21/12 02/22/12 ---  Net Time of Test, minutes 240 240 240 --- Tstart Test Start Time 756 1210 802 --- Tend Test End Time 1159 1613 1206 --- P b ar Barometric Pressure, in. Hg 29.58 29.40 29.15 29.38 P g Static Pressure, in. Hg 0.019 0.019 0.019 0.019 P S Stack Pressure, Absolute, in. Hg 29.599 29.419 29.169 29.396 V M Actual Meter Volume Sampled, cu. ft. 221.955 238.524 221.900 227.460  H Avg. Delta H, in. H 2 0 2.44 2.81 2.39 2.55
T M Avg. Gas Meter Temp., Deg. F 52.0 57.5 59.5 56.3
 Dry Gas Meter Correction Factor 0.959 0.959 0.959 0.959 V STD Volume Sampled at Stand. Cond., cu. ft. 218.33 230.94 211.99 220.42 V STD M Volume Sampled at Stand. Cond., cu.m 6.18 6.54 6.00 6.24 V C Volume of Water Collected, ml 93.3 95.2 86.3 91.6 V WC Volume of Water Vapor at Std. Cond.,SCF 4.39 4.48 4.06 4.31 B WS Moisture Content of Gas Stream 0.020 0.019 0.019 0.019 P MV Percent Moisture in Stack 2.0 1.9 1.9 1.9 M FD Mole Fraction of Dry Gas 0.980 0.981 0.981 0.981 M d Mole. Wt. Stack Gas, Dry Basis, lb/lb mole 29 29 29 29 M S Mole. Wt. Stack Gas, Wet Basis, lb/lb mol e 28.626 28.634 28.636 28.632 C p Pitot Tube Constant 0.84 0.84 0.84 0.84  PS Avg. Sqrt. Delta P, in. H20 0.825 0.839 0.815 0.826 T S Avg. Stack Temp., Deg. F 105.7 109.7 116.0 110.5 V S Avg. Stack Velocity, ft/sec 48.4 49.5 48.6 48.9 A Area Stack, ft 2 3.976 3.976 3.976 3.976 Q SD Gas Volume Flow, Dry Std. Cond. CFM 10,454 10,565 10,167 10,396 Q A Actual Gas Volume Flow, CFM 11,550 11,819 11,595 11,655SUMMARY OF RESULTS EPA METHOD 29 Determination of PM & Chromium Emissions Guardian Fiberglass Inwood, WV Line 1 Melter Baghouse Stack Q SW Gas Volume Flow, Wet Std. Cond., CFM 10,665 10,770 10,362 10,599 D n Sample Nozzle Diameter, inches 0.252 0.256 0.252 0.253 A n Area of Nozzle, ft 2 0.00035 0.00036 0.00035 0.00035 I Percent Isokinetic 99.9 101.4 99.8 100.4 PPR Process Pull Rate, lbs/hr 6,826 6,822 6,823 6,824 PPRS Process Pull Rate, tons/hr 3.41 3.41 3.41 3.41SUMMARY OF RESULTS EPA METHOD 29 Determination of PM & Chromium Emissions Guardian Fiberglass Inwood, WV Line 1 Melter Baghouse Stack
Front-Half Analysis Particulate Matter Concentration and Emission Rates

mn Particulate Catch, mg 6.4 4.8 1.8 4.3 C s Particulate Concentration, gr/dscf 0.0004 0.0003 0.0001 0.0003 C a Particulate Concentration, mg/dscm 1.03 0.73 0.29 0.68 C AW Particulate Emission Rate, lbs/hr 0.040 0.029 0.011 0.027 E Particulate Emission Rate, lbs/TGP 0.012 0.009 0.003 0.008 Chromium (Cr +3 ) Concentration and Emission Rates

mn Chromium Catch, ug 2.20 1.70 1.53 1.81 C s Chromium Concentration, gr/dscf 1.56E-07 1.14E-07 1.11E-07 1.27E-07 C a Chromium Concentration, mg/dscm 0.00036 0.00026 0.00025 0.00029 C AW Chromium Emission Rate, lbs/hr 1.39E-05 1.03E-05 9.71E-06 1.13E-05 E Emission Rate, lbs/TGP 4.08E-06 3.02E-06 2.84E-06 3.31E-06 Back-Half Analysis Chromium (Cr +3 ) Concentration and Emission Rates

mn Chromium Catch, ug 0.62 1.18 0.74 0.84 C s Chromium Concentration, gr/dscf 4.37E-08 7.89E-08 5.36E-08 5.87E-08 C a Chromium Concentration, mg/dsc m 0.00010 0.00018 0.00012 0.00013 C AW Chromium Emission Rate, lbs/hr 3.91E-06 7.14E-06 4.67E-06 5.24E-06 E Emission Rate, lbs/TGP 1.15E-06 2.09E-06 1.37E-06 1.54E-06 Total Chromium (Front & Back Half)

mn Chromium Catch, ug 2.82 2.88 2.27 2.65 C s Chromium Concentration, gr/dscf 1.99E-07 2.04E-07 1.60E-07 1.88E-07 C a Chromium Concentration, mg/dsc m 0.00046 0.00047 0.00037 0.00043 C AW Chromium Emission Rate, lbs/hr 1.78E-05 1.84E-05 1.40E-05 1.67E-05 E Emission Rate, lbs/TGP 5.23E-06 5.40E-06 4.09E-06 4.90E-06SUMMARY OF RESULTS EPA METHOD 29 Determination of PM & Chromium Emissions Guardian Fiberglass Inwood, WV Line 1 Melter Baghouse Stack Example Calculations Run 1 Due to rounding, hand calculated values may vary slightly Stack Pressure, Absolute, in. Hg P S = P bar + P g = 29.599 Volume Sampled at Stand. Cond., cu. ft. 17.647 * V M * Y * (P b ar +  H / 13.6) V STD = -------------------------------------------------- = 218.3 T M + 460 Volume of Water Vapor at Std. Cond.,SCF V WC = 0.04709 * V C = 4.39 Moisture Content of Gas Stream V WC B WS = ---------------------------------- = 0.020 V STD + V WC Percent Moisture in Stack 100 * V WC P MV= --------------------------- = 2.0 V STD + V WC Mole Fraction of Dry Gas 100 - P MV M FD = ----------------------- = 0.980 100 Mole. Wt. Stack Gas, Dry Basis, lb/lb mole M d= 0.44 * %CO 2 + 0.32 * %O 2 + 0.28 * (100 - %CO 2 - %O 2 ) = 28.840 Mole. Wt. Stack Gas, Wet Basis, lb/lb mole M S = M d* (1 - B ws ) + 18.0 * B ws = 28.626 Avg. Stack Velocity, ft/sec (T S + 460) V S = 85.49 * C P *  PS * SQRT ------------------------- = 48.4 (P S * M s )SUMMARY OF RESULTS EPA METHOD 29 Determination of PM & Chromium Emissions Guardian Fiberglass Inwood, WV Line 1 Melter Baghouse Stack Gas Volume Flow, Dry Std. Cond. CFM 1058.82 * V S * A * P S * (1 - B ws ) Q SD = --------------------------------------------------- = 10454 T S + 460 Actual Gas Volume Flow, CFM Q A= V S * A * 60 = 11550 Gas Volume Flow, Wet Std. Cond., CFM Q SW= Q SD * [1/(1-B WS )] = 10665 Area of Nozzle, ft 2 A n= ((D n/ 2) ^2 * 3.14159)/144 = 0.00035 Percent Isokinetic 0.0945 * (T S + 460) * V STD I = ----------------------------------------------- = 99.9  * V S * P S * (1 - B ws ) * A n Pollutant Concentration, gr/dscf (Particulate used) (At Standard Conditions) C S = 0.0154 * mn/ V STD = 4.49E-04 Pollutant Concentration, mg/dscm (Particulate used) (At Standard Conditions) C a= mn* 0.001 / V STD M = 1.03 Pollutant Emission Rate, lb/hr (Particulate used) (At Standard Conditions) C AW= 0.00857 * C s * Q SD = 0.04021 Pollutant Emission Rate, lb/TGP (Particulate used) (At Standard Conditions) E= C AW/ PPRS = 0.012 Standard Conditions 68 Deg. F, 29.92 in. Hg