Date Printed: 10/3/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/2/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 D 15.8 23.7 7.9 01:00 D 15.0 23.2 8.1 02:00 D 15.9 24.0 8.1 03:00 D 15.4 22.4 6.9 04:00 D 15.6 22.0 6.4 05:00 D 15.4 30.5 15.0 06:00 D 16.2 36.5 20.2 07:00 D 14.8 31.7 16.9 08:00 D 15.1 21.6 6.5 09:00 B 14.9 25.7 10.7 10:00 B 14.3 23.5 9.2 11:00 B 13.3 21.0 7.6 12:00 D 11.7 21.5 9.7 13:00 D 9.7 16.7 7.0 14:00 D 9.2 16.9 7.7 15:00 D 9.2 17.1 7.8 16:00 D 9.3 21.1 11.7 17:00 D 9.8 19.4 9.6 18:00 D 10.5 19.7 9.2 19:00 D 10.5 18.2 7.6 20:00 D 16.9 26.4 9.5 21:00 D 26.8 42.6 15.7 22:00 C 15.1 24.3 9.1 23:00 C 13.0 20.7 7.6 Average 13.8 23.7 9.8 Max D 26.8 42.6 20.2 Max Hour 21:00 21:00 06:00 Min D 9.2 16.7 6.4 Count 0 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 02-Oct-2026 22:50:00 23:20:00 -0.006 0.0 -.01 PREC 02-Oct-2026 22:50:00 23:50:00 0.06 0.07 -12.89% Date Printed: 10/3/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/2/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .020 .2 11.3 11.6 .2 01:00 .017 .2 11.7 12.0 .2 02:00 .010 .3 10.8 11.2 .2 03:00 .009 .4 10.2 10.6 .2 04:00 .004 2.0 10.7 12.7 .2 05:00 .008 .6 11.8 12.4 .2 06:00 .010 1.0 11.4 12.4 .2 07:00 .016 2.5 10.2 12.7 .2 08:00 .024 3.0 10.1 13.1 .3 09:00 .037 1.2 5.9 7.2 .3 10:00 .047 .7 4.3 5.1 .3 11:00 .053 .4 3.4 3.8 .3 12:00 .056 .2 2.8 3.1 .3 13:00 .053 .2 2.3 2.5 .3 14:00 .055 .1 1.8 2.0 .3 15:00 .054 .1 C 2.0 C 2.1 C .3 16:00 .050 C C C .3 17:00 .048 .1 C 4.0 C 4.2 C .3 18:00 .047 .0 7.6 7.6 .3 19:00 .043 .0 8.0 8.0 .3 C 20:00 .039 .1 9.0 9.1 C 21:00 .039 .1 7.3 7.4 .3 C 22:00 .039 C .1 7.4 7.5 .3 23:00 C .1 7.8 8.0 .2 Average .033 .5 7.4 8.1 .2 Max .056 3.0 11.8 13.1 .3 Max Hour 12:00 08:00 05:00 08:00 22:00 Min .004 .0 1.8 2.0 .2 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 02-Oct-2026 15:46:00 16:11:00 69.4 70 -.75% GPT-PS 02-Oct-2026 15:46:00 16:18:00 0.5 0.0 .51 GPTZ 02-Oct-2026 15:46:00 16:38:00 224.5 225 -.19% GPT-PREC 02-Oct-2026 15:46:00 17:08:00 157.1 155 1.4% NO2 GPT-PREC 02-Oct-2026 15:46:00 17:08:00 68.1 70 -2.65% NO2 Precision NO2_Diff PRECDIFF 02-Oct-2026 17:15:00 17:15:05 67.4 68.143 -1.09% NOx NOx_Auto NO-PREC 02-Oct-2026 15:46:00 16:11:00 69.5 70 -.67% Ozone O3_Auto ZERO 02-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 02-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.32% SO2 SO2_Auto ZERO 02-Oct-2026 19:46:00 20:11:00 0.1 0.0 .13 SPAN 02-Oct-2026 19:46:00 20:36:00 87.5 90 -2.78% PREC 02-Oct-2026 19:46:00 21:01:00 38.7 40 -3.13% Date Printed: 10/3/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/2/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 17.2 26.1 8.8 01:00 17.2 23.8 6.5 02:00 16.8 23.4 6.6 03:00 16.8 23.0 6.1 04:00 16.8 24.2 7.5 05:00 16.8 23.9 7.1 06:00 17.2 23.1 5.9 07:00 15.4 24.3 8.5 08:00 14.9 25.6 10.0 09:00 14.5 23.9 8.6 10:00 14.0 22.4 7.5 11:00 14.0 26.1 10.8 12:00 12.0 23.2 10.0 13:00 10.7 20.8 9.0 14:00 10.4 18.1 6.7 15:00 9.9 19.6 8.7 16:00 9.8 19.1 8.4 17:00 10.3 20.5 9.3 18:00 11.6 22.6 10.2 19:00 11.5 22.0 9.7 20:00 11.7 20.5 8.2 21:00 11.6 19.7 7.6 22:00 11.1 19.7 8.2 23:00 12.5 20.8 7.7 Average 13.5 22.3 8.2 Max 17.2 26.1 10.8 Max Hour 06:00 11:00 11:00 Min 9.8 18.1 5.9 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.13% Date Printed: 10/3/2026 01:30 Daily Summary Report Site: Union Cross 10/2/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .033 738.9 67.4 57.9 01:00 .025 738.5 63.6 57.6 02:00 .017 738.4 63.5 58.2 03:00 .018 738.2 63.9 58.0 04:00 .014 738.3 62.4 57.7 05:00 .006 738.4 60.0 57.7 06:00 .009 738.5 60.5 58.1 07:00 .014 738.8 63.7 59.1 08:00 .025 739.0 68.0 60.7 09:00 .036 739.0 73.3 62.5 10:00 .046 738.9 78.1 64.2 11:00 .048 738.7 81.7 66.2 12:00 .051 738.3 83.5 66.8 13:00 .050 737.7 85.1 67.3 14:00 .050 737.1 85.9 67.6 15:00 .050 736.8 86.4 67.7 16:00 .054 736.6 85.4 67.6 17:00 .056 736.5 82.8 67.2 18:00 .046 737.0 79.3 66.1 19:00 .040 737.4 77.5 65.1 20:00 .037 737.7 76.3 64.4 21:00 .032 737.9 75.0 64.3 22:00 .028 C 737.9 72.6 64.5 23:00 C 737.7 72.3 65.1 Average .034 738.0 73.6 62.9 Max .056 739.0 86.4 67.7 Max Hour 17:00 09:00 15:00 15:00 Min .006 736.5 60.0 57.6 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 02-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 02-Oct-2026 22:50:00 23:50:00 0.07 0.07 .96% 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