Date Printed: 10/2/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/1/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .003 9.8 17.3 7.4 01:00 .001 9.5 16.2 6.7 02:00 .000 9.4 15.2 5.8 03:00 .000 10.0 16.8 6.7 04:00 .000 8.7 15.6 6.8 05:00 .001 9.2 15.0 5.8 06:00 .001 9.9 24.8 14.7 07:00 .001 9.5 25.9 16.5 08:00 .010 D 10.3 B 18.8 B 8.5 B 09:00 D B B B 10:00 B 12.6 20.6 8.0 11:00 B 12.6 21.2 8.5 12:00 D 12.7 21.9 9.1 13:00 D 13.5 21.8 8.3 14:00 D 13.9 21.6 7.6 15:00 D 13.2 21.8 8.5 16:00 B 12.4 21.2 8.7 17:00 D 12.8 20.8 8.0 18:00 D 14.4 24.6 10.2 19:00 D 15.8 36.8 20.9 20:00 D 15.2 31.4 16.2 21:00 D 14.5 26.2 11.6 22:00 C 15.3 26.5 11.1 23:00 C 16.4 28.5 12.1 Average .001 12.2 22.1 9.9 Max .010 16.4 36.8 20.9 Max Hour 08:00 23:00 19:00 19:00 Min .000 8.7 15.0 5.8 Count 9 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 01-Oct-2026 22:50:00 23:20:00 -0.01 0.0 -.01 PREC 01-Oct-2026 22:50:00 23:50:00 0.056 0.07 -18.15% Date Printed: 10/2/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/1/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .009 .6 9.6 10.2 .2 01:00 .014 .3 9.1 9.4 .2 02:00 .005 .9 9.1 10.1 .2 03:00 .003 1.2 8.7 10.0 .2 04:00 .003 2.6 13.2 15.8 .2 05:00 .003 3.2 12.8 16.1 .2 06:00 .002 10.5 9.1 19.6 .3 07:00 .003 26.4 11.8 38.3 .5 08:00 .014 24.1 18.1 42.1 .7 09:00 .033 4.1 12.7 16.7 .4 10:00 .050 .8 5.0 5.8 .3 11:00 .054 .3 2.6 2.9 .4 12:00 .055 .2 2.2 2.5 .4 13:00 .057 .1 2.1 2.2 .4 14:00 .061 .1 2.3 2.5 .3 15:00 .064 .1 C 2.4 C 2.5 C .4 16:00 .061 C C C .3 17:00 .056 .1 C 5.4 C 5.6 C .3 18:00 .050 .0 7.8 7.9 .3 19:00 .034 .2 16.0 16.3 .2 C 20:00 .024 .3 21.1 21.5 C 21:00 .022 .2 16.7 16.9 .3 C 22:00 .014 C .9 17.2 18.1 .2 23:00 C .3 15.4 15.8 .2 Average .030 3.3 10.0 13.4 .3 Max .064 26.4 21.1 42.1 .7 Max Hour 15:00 07:00 20:00 08:00 08:00 Min .002 .0 2.1 2.2 .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 01-Oct-2026 15:46:00 16:11:00 69.2 70 -1.04% GPT-PS 01-Oct-2026 15:46:00 16:18:00 0.5 0.0 .51 GPTZ 01-Oct-2026 15:46:00 16:38:00 224.4 225 -.24% GPT-PREC 01-Oct-2026 15:46:00 17:08:00 156.7 155 1.16% NO2 GPT-PREC 01-Oct-2026 15:46:00 17:08:00 68.1 70 -2.66% NO2 Precision NO2_Diff PRECDIFF 01-Oct-2026 17:15:00 17:15:05 67.6 68.138 -.69% NOx NOx_Auto NO-PREC 01-Oct-2026 15:46:00 16:11:00 69.3 70 -.96% Ozone O3_Auto ZERO 01-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 01-Oct-2026 22:50:00 23:50:00 0.067 0.07 -3.7% SO2 SO2_Auto ZERO 01-Oct-2026 19:46:00 20:11:00 0 0.0 .07 SPAN 01-Oct-2026 19:46:00 20:36:00 87.5 90 -2.68% PREC 01-Oct-2026 19:46:00 21:01:00 38.9 40 -2.73% Date Printed: 10/2/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/1/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 12.5 19.1 6.6 01:00 12.0 19.2 7.2 02:00 12.1 18.2 6.1 03:00 12.6 20.6 8.1 04:00 13.4 22.1 8.9 05:00 13.4 21.2 7.9 06:00 12.4 21.2 8.9 07:00 12.7 22.9 10.2 08:00 16.1 38.6 21.8 09:00 13.1 26.3 12.5 10:00 13.9 23.4 8.6 11:00 13.1 23.3 9.3 12:00 12.7 22.8 9.1 13:00 12.8 22.6 8.8 14:00 13.4 22.5 8.1 15:00 14.0 22.8 7.8 16:00 12.6 21.1 7.7 17:00 13.3 22.9 8.9 18:00 14.0 21.5 7.0 19:00 15.3 24.2 8.4 20:00 17.0 26.7 9.3 21:00 18.6 27.1 8.2 22:00 18.5 28.2 9.5 23:00 19.4 30.5 10.9 Average 14.1 23.7 9.1 Max 19.4 38.6 21.8 Max Hour 23:00 08:00 08:00 Min 12.0 18.2 6.1 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -2.73% Date Printed: 10/2/2026 01:30 Daily Summary Report Site: Union Cross 10/1/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .021 739.1 66.4 57.4 01:00 .020 738.9 65.2 56.7 02:00 .018 738.9 61.9 56.4 03:00 .011 738.8 60.1 56.8 04:00 .011 738.9 58.5 56.8 05:00 .008 739.3 58.3 57.5 06:00 .005 739.8 58.1 57.9 07:00 .006 740.0 62.6 60.3 08:00 .028 740.3 68.4 60.2 09:00 .039 740.6 72.8 61.6 10:00 .051 740.6 76.6 62.0 11:00 .056 740.4 79.0 62.6 12:00 .056 739.8 13:00 .060 B 739.2 82.0 63.9 14:00 .064 738.9 82.6 64.0 15:00 .062 738.7 83.0 63.8 16:00 .058 738.5 82.1 62.4 17:00 .054 738.5 80.0 61.8 18:00 .046 738.8 76.2 60.7 19:00 .038 739.0 72.7 59.8 20:00 .045 739.1 72.0 59.6 21:00 .045 739.1 70.5 59.1 22:00 .042 C 739.0 69.3 58.9 23:00 C 739.0 68.9 58.3 Average .036 739.3 70.7 59.9 Max .064 740.6 83.0 64.0 Max Hour 14:00 10:00 15:00 14:00 Min .005 738.5 58.1 56.4 Count 23 24 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 01-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 01-Oct-2026 22:50:00 23:50:00 0.07 0.07 -.12% 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