Date Printed: 8/15/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/14/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .011 9.0 20.4 11.4 01:00 .009 9.6 20.3 10.6 02:00 .005 B 9.5 21.9 12.4 03:00 .005 9.5 22.2 12.7 04:00 .003 9.8 23.7 13.9 05:00 .001 9.5 22.9 13.3 06:00 .001 9.2 23.6 14.2 07:00 .005 8.8 21.3 12.5 08:00 .009 8.6 18.1 9.5 09:00 .029 9.0 18.7 9.6 10:00 .039 8.6 17.3 8.6 11:00 .042 8.4 16.7 8.2 12:00 .040 8.9 18.3 9.3 13:00 .038 7.9 19.7 11.7 14:00 .035 5.6 14.2 8.5 15:00 .038 4.6 11.2 6.5 16:00 .032 5.0 11.2 6.1 17:00 .027 5.5 12.3 6.8 18:00 .029 6.0 12.5 6.4 19:00 .018 B 6.4 13.5 7.1 20:00 .010 6.9 14.8 7.8 21:00 .006 7.2 15.7 8.4 22:00 .004 C 7.5 17.7 10.1 23:00 C 7.9 19.9 11.9 Average .018 7.8 17.8 9.8 Max .042 9.8 23.7 14.2 Max Hour 11:00 04:00 04:00 06:00 Min .001 4.6 11.2 6.1 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 14-Aug-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 14-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.64% Date Printed: 8/15/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/14/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .024 .1 4.6 4.8 .1 01:00 .021 .2 4.6 4.9 .1 02:00 .019 .2 4.4 4.7 .1 03:00 .015 .3 5.5 5.8 .1 04:00 .008 .5 7.9 8.5 .1 05:00 .007 .7 7.9 8.7 .1 06:00 .005 3.9 9.3 13.3 .2 07:00 .012 6.9 9.3 16.2 .2 08:00 .033 1.0 3.7 4.8 .2 09:00 .042 .5 3.1 3.7 .2 10:00 .049 .3 2.0 2.3 .2 11:00 .048 .2 1.8 2.0 .2 12:00 .047 .2 1.6 1.9 .2 13:00 .038 .2 2.9 3.1 .2 14:00 .038 .6 4.6 5.3 .1 15:00 .048 .9 C 4.3 C 5.2 C .1 16:00 .046 C C C .2 17:00 .038 .3 C 3.2 C 3.6 C .2 18:00 .034 .2 3.5 3.8 .1 19:00 .031 .1 5.0 5.2 .1 C 20:00 .026 .2 5.7 6.0 C 21:00 .024 .2 5.9 6.1 .2 C 22:00 .019 C .3 7.6 7.9 .2 23:00 C .2 6.3 6.6 .1 Average .029 .7 4.9 5.8 .1 Max .049 6.9 9.3 16.2 .2 Max Hour 10:00 07:00 07:00 07:00 22:00 Min .005 .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 14-Aug-2026 15:46:00 16:11:00 65.6 70 -6.18% GPT-PS 14-Aug-2026 15:46:00 16:18:00 0.4 0.0 .49 GPTZ 14-Aug-2026 15:46:00 16:38:00 213.1 225 -5.28% GPT-PREC 14-Aug-2026 15:46:00 17:08:00 148.4 155 -4.2% NO2 GPT-PREC 14-Aug-2026 15:46:00 17:08:00 65.3 70 -6.69% NO2 Precision NO2_Diff PRECDIFF 14-Aug-2026 17:15:00 17:15:05 64.6 65.319 -1.07% NOx NOx_Auto NO-PREC 14-Aug-2026 15:46:00 16:11:00 65.9 70 -5.79% Ozone O3_Auto ZERO 14-Aug-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 14-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.02% SO2 SO2_Auto ZERO 14-Aug-2026 19:46:00 20:11:00 0 0.0 .06 SPAN 14-Aug-2026 19:46:00 20:36:00 89.7 90 -.27% PREC 14-Aug-2026 19:46:00 21:01:00 39.5 40 -1.13% Date Printed: 8/15/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/14/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 8.2 16.8 8.1 01:00 8.5 17.8 8.8 02:00 8.7 17.4 8.2 03:00 9.1 17.9 8.3 04:00 9.2 17.3 7.6 05:00 9.1 19.1 9.5 06:00 8.9 19.5 10.0 07:00 9.5 22.5 12.0 08:00 9.4 20.5 10.1 09:00 8.7 23.7 13.8 10:00 9.2 23.6 13.1 11:00 9.1 25.8 15.2 12:00 9.4 23.5 12.7 13:00 8.9 22.1 12.1 14:00 6.8 15.6 8.2 15:00 6.2 13.1 6.2 16:00 7.4 14.6 6.4 17:00 8.1 17.1 8.0 18:00 7.7 19.3 10.8 19:00 7.3 16.9 8.8 20:00 7.1 14.7 7.0 21:00 7.7 16.2 7.8 22:00 7.9 15.5 7.1 23:00 7.9 15.8 7.3 Average 8.3 18.5 9.4 Max 9.5 25.8 15.2 Max Hour 07:00 11:00 11:00 Min 6.2 13.1 6.2 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -1.13% Date Printed: 8/15/2026 01:30 Daily Summary Report Site: Union Cross 8/14/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .020 736.4 75.4 71.3 01:00 .015 736.4 74.6 71.4 02:00 .014 736.7 73.9 71.6 03:00 .009 736.6 73.6 71.6 04:00 .004 736.9 72.9 71.6 05:00 .002 737.5 73.3 71.9 06:00 .003 737.9 74.0 72.0 07:00 .010 738.2 77.3 72.8 08:00 .021 738.4 82.3 73.4 09:00 .037 738.8 86.1 73.8 10:00 .054 738.9 87.8 73.3 11:00 .054 738.8 89.6 73.2 12:00 .054 738.4 90.9 74.4 13:00 .044 738.2 88.5 74.5 14:00 .040 738.0 82.3 73.1 15:00 .046 738.0 87.1 75.4 16:00 .052 737.7 89.1 75.3 17:00 .044 737.9 86.8 74.8 18:00 .037 737.7 84.2 75.1 19:00 .032 738.2 81.5 74.3 20:00 .028 738.6 80.1 74.4 21:00 .019 738.8 79.5 74.6 22:00 .014 C 738.7 78.7 74.6 23:00 C 738.9 78.1 74.7 Average .028 737.9 81.1 73.4 Max .054 738.9 90.9 75.4 Max Hour 12:00 23:00 12:00 15:00 Min .002 736.4 72.9 71.3 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 14-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 14-Aug-2026 22:50:00 23:50:00 0.069 0.07 -.24% 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