Date Printed: 8/14/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/13/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .006 9.4 23.0 13.5 01:00 .012 9.1 19.3 10.2 02:00 .008 9.5 21.6 12.1 03:00 .004 10.2 25.7 15.5 04:00 .003 10.2 25.7 15.4 05:00 .002 9.7 24.6 14.9 06:00 .003 9.5 23.7 14.2 07:00 .012 8.7 18.3 9.6 08:00 .026 7.5 15.2 7.7 09:00 .037 B B B B 10:00 .041 B B B 11:00 .040 7.0 12.6 5.5 12:00 .039 7.3 15.1 7.7 13:00 .036 7.3 14.7 7.4 14:00 .038 7.3 14.5 7.2 15:00 .039 7.3 13.5 6.2 16:00 .037 6.8 13.1 6.2 17:00 .035 7.2 14.1 6.8 18:00 .030 7.8 16.2 8.4 19:00 .030 8.6 16.2 7.6 20:00 .025 9.4 19.3 9.9 21:00 .023 9.8 19.2 9.3 22:00 .021 C 8.5 16.8 8.3 23:00 C 8.4 17.0 8.6 Average .023 8.4 18.1 9.6 Max .041 10.2 25.7 15.5 Max Hour 10:00 04:00 04:00 03:00 Min .002 6.8 12.6 5.5 Count 23 22 22 22 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 13-Aug-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 13-Aug-2026 22:50:00 23:50:00 0.066 0.07 -4.02% Date Printed: 8/14/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/13/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .031 .1 3.5 3.6 .1 01:00 .032 .1 3.7 3.8 .1 02:00 .030 .1 3.6 3.7 .2 03:00 .019 .2 5.0 5.2 .1 04:00 .015 .2 7.7 8.0 .1 05:00 .016 .7 7.4 8.1 .1 06:00 .016 1.3 7.8 9.2 .1 07:00 .021 3.7 7.1 11.0 .2 08:00 .031 1.3 5.1 6.5 .2 09:00 .040 .5 3.0 3.5 .2 10:00 .045 .2 1.6 1.9 .1 11:00 .043 .2 1.8 2.1 .1 12:00 .040 .3 2.0 2.3 .2 13:00 .037 .4 2.8 3.2 .1 14:00 .040 .3 1.9 2.2 .2 15:00 .044 .2 C 1.9 C 2.2 C .2 16:00 .042 C C C .2 17:00 .038 .3 C 2.5 C 2.8 C .2 18:00 .035 .1 2.9 3.1 .2 19:00 .033 .1 4.5 4.6 .2 C 20:00 .032 .1 3.5 3.6 C 21:00 .031 .1 3.2 3.4 .2 C 22:00 .031 C .1 3.3 3.4 .1 23:00 C .1 3.6 3.8 .1 Average .032 .4 3.8 4.4 .1 Max .045 3.7 7.8 11.0 .2 Max Hour 10:00 07:00 06:00 07:00 21:00 Min .015 .1 1.6 1.9 .1 Count 23 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 13-Aug-2026 15:46:00 16:11:00 65.8 70 -5.96% GPT-PS 13-Aug-2026 15:46:00 16:18:00 0.5 0.0 .53 GPTZ 13-Aug-2026 15:46:00 16:38:00 213.3 225 -5.19% GPT-PREC 13-Aug-2026 15:46:00 17:08:00 148.8 155 -3.94% NO2 GPT-PREC 13-Aug-2026 15:46:00 17:08:00 64.9 70 -7.18% NO2 Precision NO2_Diff PRECDIFF 13-Aug-2026 17:15:00 17:15:05 64.4 64.972 -.82% NOx NOx_Auto NO-PREC 13-Aug-2026 15:46:00 16:11:00 65.8 70 -5.94% Ozone O3_Auto ZERO 13-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 13-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.77% SO2 SO2_Auto ZERO 13-Aug-2026 19:46:00 20:11:00 0 0.0 .06 SPAN 13-Aug-2026 19:46:00 20:36:00 89.6 90 -.36% PREC 13-Aug-2026 19:46:00 21:01:00 39.6 40 -.77% Date Printed: 8/14/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/13/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 7.1 13.3 5.8 01:00 7.2 14.1 6.4 02:00 7.2 14.8 7.1 03:00 7.8 14.9 6.6 04:00 8.0 16.8 8.3 05:00 8.0 14.3 5.9 06:00 8.1 17.6 9.0 07:00 14.1 34.4 18.9 08:00 7.9 18.7 9.9 09:00 6.5 14.8 7.5 10:00 6.5 12.6 5.4 11:00 6.7 14.0 6.5 12:00 7.8 15.3 6.7 13:00 8.1 17.6 8.6 14:00 8.0 15.7 6.8 15:00 7.9 17.0 8.1 16:00 7.5 15.5 7.1 17:00 7.3 17.0 8.7 18:00 8.2 17.6 8.4 19:00 9.3 19.3 9.1 20:00 8.5 18.2 8.9 21:00 8.1 17.7 8.9 22:00 7.7 14.7 6.5 23:00 7.7 16.3 8.1 Average 7.9 16.7 8.0 Max 14.1 34.4 18.9 Max Hour 07:00 07:00 07:00 Min 6.5 12.6 5.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -.77% Date Printed: 8/14/2026 01:30 Daily Summary Report Site: Union Cross 8/13/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .021 734.9 73.7 68.8 01:00 .019 734.7 74.0 68.0 02:00 .017 734.3 72.6 67.8 03:00 .012 734.1 71.0 67.9 04:00 .008 734.5 70.5 68.3 05:00 .004 734.7 70.4 68.2 06:00 .007 735.4 71.3 68.5 07:00 .012 736.0 75.8 69.3 08:00 .026 736.3 80.0 70.0 09:00 .042 736.6 82.7 68.7 10:00 .049 736.6 84.8 69.0 11:00 .052 736.6 86.0 71.0 12:00 .047 736.7 85.7 71.9 13:00 .043 736.4 86.5 72.2 14:00 .045 735.9 87.9 73.4 15:00 .046 735.5 87.4 73.6 16:00 .045 735.5 88.1 73.8 17:00 .041 735.6 87.2 73.4 18:00 .037 735.8 85.4 73.7 19:00 .035 735.9 83.3 73.9 20:00 .034 736.4 81.1 73.7 21:00 .033 737.1 79.3 72.9 22:00 .030 C 737.5 77.7 72.2 23:00 C 737.2 76.6 71.5 Average .030 735.8 79.9 70.9 Max .052 737.5 88.1 73.9 Max Hour 11:00 22:00 16:00 19:00 Min .004 734.1 70.4 67.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 13-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 13-Aug-2026 22:50:00 23:50:00 0.069 0.07 -.85% Flags T Out of Control A Arithmetic Error (math calculation error) t Out of Control (Partial) S Site Visit s Site Activity > Some Data Missing + Max Exceeded - Min Exceeded < Logger Invalid ? Suspect a Audit B Bad Status C Calibration c Ceiling Limit D Channel Disabled E Edited e Site Malfunction f Floor Limit H High-High Alarm h High Alarm I Invalidated By Edit J High Rate of Change Exceeded L Low-Low Alarm l Low Alarm M Maintenance m Marked Maint by edit O Overrange o Other P Power Failure p Precision Check Q Quality Assured R Rate of Change Exceeded V Dig Info#1 W Dig Info#2 X Dig Info#3 Y Dig Info#4 Z Dig Info#5 z Zero Adjusted F Boiler Offline j Low Rate of Change Exceeded