Date Printed: 10/7/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/6/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .013 5.4 11.3 5.8 01:00 .014 4.6 9.4 4.7 02:00 .013 4.6 10.1 5.4 03:00 .013 4.6 9.6 5.0 04:00 .022 4.6 10.4 5.7 05:00 .023 4.7 9.9 5.1 06:00 .023 4.7 10.5 5.8 07:00 .026 4.6 11.6 7.0 08:00 .028 4.3 11.8 7.4 09:00 .031 3.7 10.6 6.8 10:00 .035 3.4 9.2 5.7 11:00 .041 3.5 11.7 8.2 12:00 .045 3.7 12.3 8.5 13:00 .048 4.0 15.2 11.2 14:00 .052 4.2 14.8 10.6 15:00 .053 4.2 12.6 8.3 16:00 .052 4.3 13.1 8.7 17:00 .041 4.7 16.0 11.3 18:00 .021 5.0 18.2 13.1 19:00 .024 5.2 19.5 14.3 20:00 .012 5.8 14.1 8.3 21:00 .013 5.9 12.5 6.6 22:00 .008 C 6.0 12.2 6.1 23:00 C 6.2 12.7 6.5 Average .028 4.6 12.4 7.7 Max .053 6.2 19.5 14.3 Max Hour 15:00 23:00 19:00 19:00 Min .008 3.4 9.2 4.7 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 06-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 06-Oct-2026 22:50:00 23:50:00 0.069 0.07 -.68% Date Printed: 10/7/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/6/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .031 .5 3.3 3.8 .2 01:00 .025 .0 6.5 6.5 .2 02:00 .020 .0 8.5 8.6 .1 03:00 .030 .1 1.8 2.1 .2 04:00 .028 .1 1.6 1.7 .2 05:00 .026 .1 2.7 2.8 .2 06:00 .025 .4 4.0 4.5 .2 07:00 .025 1.0 3.8 4.9 .3 08:00 .029 1.1 3.4 4.5 1.0 09:00 .033 .6 2.0 2.7 .4 10:00 .037 .3 1.4 1.8 D 11:00 .040 .2 1.3 1.5 D 12:00 .044 .2 1.6 1.8 D 13:00 .048 .2 2.0 2.3 D 14:00 .051 .2 2.1 2.4 D 15:00 .053 P P P P P 16:00 .054 C C C .3 D 17:00 .048 .2 C 5.2 C 5.4 C .3 18:00 .032 .1 12.5 12.6 .3 19:00 .029 .1 11.1 11.2 .3 C 20:00 .029 .1 7.9 8.0 C 21:00 .025 .1 9.4 9.5 .2 C 22:00 .020 C .1 9.3 9.4 .2 23:00 C .2 8.6 8.8 .2 Average .034 .2 5.0 5.3 .2 Max .054 1.1 12.5 12.6 1.0 Max Hour 16:00 08:00 18:00 18:00 08:00 Min .020 .0 1.3 1.5 .1 Count 23 22 22 22 17 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 06-Oct-2026 15:46:00 16:11:00 69.6 70 -.56% GPT-PS 06-Oct-2026 15:46:00 16:18:00 0.5 0.0 .52 GPTZ 06-Oct-2026 15:46:00 16:38:00 224.4 225 -.26% GPT-PREC 06-Oct-2026 15:46:00 17:08:00 156.8 155 1.17% NO2 GPT-PREC 06-Oct-2026 15:46:00 17:08:00 68.4 70 -2.28% NO2 Precision NO2_Diff PRECDIFF 06-Oct-2026 17:15:00 17:15:05 67.6 68.402 -1.16% NOx NOx_Auto NO-PREC 06-Oct-2026 15:46:00 16:11:00 69.5 70 -.59% Ozone O3_Auto ZERO 06-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 06-Oct-2026 22:50:00 23:50:00 0.069 0.07 -1.52% SO2 SO2_Auto ZERO 06-Oct-2026 19:46:00 20:11:00 0.1 0.0 .13 SPAN 06-Oct-2026 19:46:00 20:36:00 87.4 90 -2.82% PREC 06-Oct-2026 19:46:00 21:01:00 38.5 40 -3.6% Date Printed: 10/7/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/6/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 4.1 8.4 4.4 01:00 4.3 8.8 4.6 02:00 4.6 9.0 4.5 03:00 4.3 10.0 5.8 04:00 4.4 10.0 5.8 05:00 4.6 9.8 5.3 06:00 4.8 10.4 5.8 07:00 4.9 12.3 7.6 08:00 4.0 9.2 5.2 09:00 3.5 10.8 7.3 10:00 3.4 9.7 6.2 11:00 3.4 10.9 7.5 12:00 3.5 12.3 8.6 13:00 3.7 13.1 9.2 14:00 3.8 12.6 8.6 15:00 4.1 13.9 9.5 16:00 4.3 14.9 10.4 17:00 4.6 16.0 11.2 18:00 5.3 18.1 12.7 19:00 5.9 16.7 10.9 20:00 5.5 13.9 8.5 21:00 5.6 13.8 8.3 22:00 5.9 12.3 6.6 23:00 6.8 15.6 9.1 Average 4.5 12.1 7.6 Max 6.8 18.1 12.7 Max Hour 23:00 18:00 18:00 Min 3.4 8.4 4.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.6% Date Printed: 10/7/2026 01:30 Daily Summary Report Site: Union Cross 10/6/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .023 739.4 57.4 47.9 01:00 .023 739.4 55.7 47.0 02:00 .025 739.3 54.8 46.5 03:00 .028 739.3 55.7 46.7 04:00 .026 739.5 56.1 47.4 05:00 .025 739.7 55.0 46.7 06:00 .023 740.1 54.5 46.1 07:00 .025 740.5 55.3 45.8 08:00 .028 741.0 57.1 44.2 09:00 .030 741.2 59.6 42.8 10:00 .034 741.2 62.0 43.6 11:00 .038 740.8 63.6 44.6 12:00 .042 740.1 65.6 46.1 13:00 .047 739.3 67.8 47.8 14:00 .050 738.7 68.4 48.6 15:00 .051 738.3 69.5 49.2 16:00 .052 738.1 69.1 49.1 17:00 .046 738.1 66.9 49.0 18:00 .034 738.1 61.8 47.7 19:00 .032 738.3 61.0 46.8 20:00 .026 738.5 59.1 46.8 21:00 .018 738.5 55.7 46.6 22:00 .018 C 738.5 56.1 45.9 23:00 C 738.3 55.6 45.5 Average .032 739.3 60.1 46.6 Max .052 741.2 69.5 49.2 Max Hour 16:00 10:00 15:00 15:00 Min .018 738.1 54.5 42.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 06-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 06-Oct-2026 22:50:00 23:50:00 0.07 0.07 .94% 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