Date Printed: 8/11/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/10/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .014 8.7 16.9 8.2 01:00 .019 7.4 16.0 8.5 02:00 .016 7.6 17.1 9.4 03:00 .014 7.3 16.8 9.4 04:00 .009 7.2 16.5 9.2 05:00 .007 7.1 17.0 9.8 06:00 .007 6.7 16.2 9.4 07:00 .009 5.9 14.2 8.2 08:00 .018 5.2 11.5 6.3 09:00 .026 5.1 11.9 6.8 10:00 .030 5.5 12.0 6.4 11:00 .034 6.3 12.1 5.7 12:00 .036 B 6.8 14.1 7.3 13:00 .037 6.9 15.2 8.3 14:00 .037 7.2 15.5 8.2 15:00 .036 7.6 15.0 7.3 16:00 .033 8.1 18.2 10.0 17:00 .036 10.3 19.2 8.8 18:00 .031 12.3 23.1 10.7 19:00 .024 12.6 26.4 13.7 20:00 .012 12.5 24.4 11.9 21:00 .008 12.2 22.6 10.4 22:00 .004 C 12.4 25.0 12.6 23:00 C 11.1 24.1 12.9 Average .021 8.3 17.5 9.1 Max .037 12.6 26.4 13.7 Max Hour 14:00 19:00 19:00 19:00 Min .004 5.1 11.5 5.7 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 10-Aug-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 10-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.49% Date Printed: 8/11/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/10/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .026 .1 3.2 3.4 .1 01:00 .022 .2 3.3 3.6 .1 02:00 .019 .2 2.7 3.0 .1 03:00 .018 .2 2.8 3.0 .1 04:00 .018 .2 3.5 3.8 .1 05:00 .009 .5 7.4 7.9 .1 06:00 .010 1.7 8.0 9.7 .1 07:00 .013 1.3 5.5 6.8 .1 08:00 .018 1.6 4.8 6.5 .1 09:00 .030 .9 2.8 3.8 .1 10:00 .035 .4 1.7 2.1 .1 11:00 .035 .2 1.0 1.3 .1 12:00 .038 .2 1.1 1.3 .1 13:00 .040 .2 1.3 1.5 .2 14:00 .039 .2 1.4 1.7 .2 15:00 .039 .2 C 1.5 C 1.8 C .1 16:00 .035 C C C .1 17:00 .037 .3 C 2.8 C 3.1 C .1 18:00 .042 .1 3.3 3.4 .1 19:00 .040 .0 5.0 5.1 .1 C 20:00 .032 .1 6.6 6.8 C 21:00 .028 .1 5.8 6.0 .2 C 22:00 .023 C .2 6.2 6.4 .1 23:00 C .2 4.4 4.7 .1 Average .028 .4 3.7 4.2 .1 Max .042 1.7 8.0 9.7 .2 Max Hour 18:00 06:00 06:00 06:00 21:00 Min .009 .0 1.0 1.3 .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 10-Aug-2026 15:46:00 16:11:00 65.8 70 -5.91% GPT-PS 10-Aug-2026 15:46:00 16:18:00 0.4 0.0 .46 GPTZ 10-Aug-2026 15:46:00 16:38:00 213.3 225 -5.2% GPT-PREC 10-Aug-2026 15:46:00 17:08:00 148.9 155 -3.92% NO2 GPT-PREC 10-Aug-2026 15:46:00 17:08:00 65.2 70 -6.86% NO2 Precision NO2_Diff PRECDIFF 10-Aug-2026 17:15:00 17:15:05 64.3 65.201 -1.27% NOx NOx_Auto NO-PREC 10-Aug-2026 15:46:00 16:11:00 66 70 -5.58% Ozone O3_Auto ZERO 10-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 10-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.63% SO2 SO2_Auto ZERO 10-Aug-2026 19:46:00 20:11:00 0 0.0 .05 SPAN 10-Aug-2026 19:46:00 20:36:00 89.7 90 -.26% PREC 10-Aug-2026 19:46:00 21:01:00 39.5 40 -1.04% Date Printed: 8/11/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/10/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 9.3 20.6 10.8 01:00 9.3 22.0 12.1 02:00 8.9 21.5 12.2 03:00 7.6 19.3 11.3 04:00 7.1 17.0 9.5 05:00 7.9 19.3 11.0 06:00 7.3 17.7 10.0 07:00 6.4 15.1 8.3 08:00 6.1 14.6 8.0 09:00 5.5 14.2 8.0 10:00 5.9 13.9 7.3 11:00 6.8 14.7 7.1 12:00 7.2 15.3 7.2 13:00 7.3 16.2 7.9 14:00 7.8 15.5 6.8 15:00 7.9 15.8 7.0 16:00 8.3 16.6 7.5 17:00 8.6 15.7 6.3 18:00 11.8 21.0 8.4 19:00 12.6 21.6 8.2 20:00 11.9 21.2 8.6 21:00 10.8 20.6 9.1 22:00 10.9 22.4 10.9 23:00 10.7 24.1 12.8 Average 8.4 18.1 9.0 Max 12.6 24.1 12.8 Max Hour 19:00 23:00 23:00 Min 5.5 13.9 6.3 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -1.04% Date Printed: 8/11/2026 01:30 Daily Summary Report Site: Union Cross 8/10/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .032 738.9 73.4 68.7 01:00 .032 738.3 72.3 68.8 02:00 .022 738.1 71.4 69.0 03:00 .016 738.2 71.1 69.6 04:00 .013 738.4 70.9 69.8 05:00 .012 738.7 70.3 69.7 06:00 .010 739.4 71.5 70.2 07:00 .013 739.9 73.1 70.0 08:00 .017 740.0 75.8 70.3 09:00 .030 739.8 80.3 70.4 10:00 .040 739.7 83.8 70.5 11:00 .043 739.3 86.2 71.4 12:00 .042 738.8 86.9 72.1 13:00 .042 738.1 87.7 72.5 14:00 .043 737.9 88.4 73.2 15:00 .041 737.8 88.5 73.3 16:00 .038 737.9 88.0 73.0 17:00 .035 737.9 85.2 73.0 18:00 .041 737.7 81.1 69.4 19:00 .036 738.2 78.0 67.9 20:00 .033 738.4 76.8 68.3 21:00 .026 738.6 75.9 69.0 22:00 .022 C 738.5 75.4 70.1 23:00 C 738.4 74.8 71.4 Average .029 738.6 78.6 70.4 Max .043 740.0 88.5 73.3 Max Hour 14:00 08:00 15:00 15:00 Min .010 737.7 70.3 67.9 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 10-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 10-Aug-2026 22:50:00 23:50:00 0.069 0.07 .09% 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