Date Printed: 10/12/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/11/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .037 1.7 4.0 2.2 01:00 .036 1.8 5.1 3.2 02:00 .034 1.3 3.9 2.6 03:00 .032 1.3 3.1 1.7 04:00 .029 1.3 2.5 1.2 05:00 .028 1.3 4.3 3.0 06:00 .027 1.8 4.8 2.9 07:00 .025 2.1 5.0 2.9 08:00 .021 1.5 5.1 3.5 09:00 .020 1.2 4.1 2.8 10:00 .020 1.1 4.1 2.9 11:00 .021 1.7 4.8 3.0 12:00 .028 2.8 6.7 3.9 13:00 .034 4.4 8.6 4.2 14:00 .037 4.7 8.6 3.9 15:00 .035 B 4.5 9.1 4.6 16:00 .034 5.3 9.8 4.5 17:00 .031 5.5 10.6 5.1 18:00 .029 4.2 8.1 3.8 19:00 .025 4.6 9.1 4.5 20:00 .025 B 4.6 9.7 5.1 21:00 .021 4.9 9.8 4.9 22:00 .018 C 5.1 11.4 6.2 23:00 C 5.0 11.1 6.1 Average .028 3.0 6.8 3.6 Max .037 5.5 11.4 6.2 Max Hour 14:00 17:00 22:00 22:00 Min .018 1.1 2.5 1.2 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 11-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 11-Oct-2026 22:50:00 23:50:00 0.069 0.07 -1.24% Date Printed: 10/12/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/11/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .038 .0 .6 .7 .2 01:00 .038 .0 .6 .6 .2 02:00 .035 .0 .7 .7 .2 03:00 .033 .0 .9 .9 .2 04:00 .030 .1 .9 1.0 .2 05:00 .029 .0 .7 .8 .2 06:00 .027 .0 1.0 1.1 .2 07:00 .025 .1 1.3 1.5 .2 08:00 .023 .1 1.9 2.0 .2 09:00 .021 .4 2.3 2.7 .2 10:00 .021 .8 1.5 2.4 .2 11:00 .020 .8 1.7 2.5 .2 12:00 .023 .6 1.5 2.1 .3 13:00 .029 .3 1.6 2.0 .3 14:00 .033 .3 1.5 1.8 .2 15:00 .033 .2 C 1.7 C 1.9 C .2 16:00 .032 C C C .3 17:00 .028 .1 C 2.6 C 2.7 C .3 18:00 .026 .1 2.7 2.9 .2 19:00 .024 .1 2.5 2.6 .2 C 20:00 .023 .1 2.3 2.5 C 21:00 .022 .1 2.6 2.8 .3 C 22:00 .020 C .1 2.8 3.0 .3 23:00 C .1 3.4 3.5 .3 Average .027 .1 1.7 1.9 .2 Max .038 .8 3.4 3.5 .3 Max Hour 01:00 11:00 23:00 23:00 23:00 Min .020 .0 .6 .6 .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 11-Oct-2026 15:46:00 16:11:00 69.3 70 -.91% GPT-PS 11-Oct-2026 15:46:00 16:18:00 0.5 0.0 .59 GPTZ 11-Oct-2026 15:46:00 16:38:00 225.1 225 .08% GPT-PREC 11-Oct-2026 15:46:00 17:08:00 157.6 155 1.74% NO2 GPT-PREC 11-Oct-2026 15:46:00 17:08:00 68 70 -2.72% NO2 Precision NO2_Diff PRECDIFF 11-Oct-2026 17:15:00 17:15:05 67.4 68.094 -.89% NOx NOx_Auto NO-PREC 11-Oct-2026 15:46:00 16:11:00 69.4 70 -.81% Ozone O3_Auto ZERO 11-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 11-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.05% SO2 SO2_Auto ZERO 11-Oct-2026 19:46:00 20:11:00 0.2 0.0 .22 SPAN 11-Oct-2026 19:46:00 20:36:00 87.5 90 -2.76% PREC 11-Oct-2026 19:46:00 21:01:00 38.8 40 -2.98% Date Printed: 10/12/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/11/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 1.6 4.3 2.5 01:00 2.0 5.6 3.5 02:00 2.0 5.3 3.2 03:00 1.4 3.4 1.9 04:00 1.2 3.1 1.9 05:00 1.2 4.0 2.7 06:00 1.7 4.3 2.6 07:00 1.1 3.0 1.8 08:00 .6 2.5 1.7 09:00 .8 3.0 2.2 10:00 1.3 3.2 1.8 11:00 2.5 5.8 3.1 12:00 2.9 6.6 3.4 13:00 3.9 8.9 4.6 14:00 5.4 11.1 5.3 15:00 4.7 10.7 5.7 16:00 5.3 10.5 4.9 17:00 5.9 12.3 6.1 18:00 4.9 10.1 5.0 19:00 4.5 9.6 4.9 20:00 4.7 10.0 5.1 21:00 4.5 10.3 5.6 22:00 4.8 11.2 6.2 23:00 4.8 11.4 6.4 Average 3.0 7.0 3.8 Max 5.9 12.3 6.4 Max Hour 17:00 17:00 23:00 Min .6 2.5 1.7 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -2.98% Date Printed: 10/12/2026 01:30 Daily Summary Report Site: Union Cross 10/11/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .037 736.9 66.9 66.9 01:00 .036 736.4 67.4 67.4 02:00 .035 735.9 67.9 67.9 03:00 .033 735.6 68.4 68.4 04:00 .031 735.4 68.7 68.7 05:00 .028 735.3 69.1 69.1 06:00 .026 735.3 69.2 69.3 07:00 .024 734.7 69.5 69.5 08:00 .021 734.3 70.1 70.1 09:00 .019 734.3 71.2 71.2 10:00 .020 733.5 73.9 72.6 11:00 .022 732.7 77.1 71.6 12:00 .025 731.9 77.6 70.2 13:00 .033 731.6 76.8 65.7 14:00 .038 731.8 73.3 60.8 15:00 .036 732.1 70.5 58.8 16:00 .033 732.0 69.5 59.5 17:00 .031 732.2 68.2 59.8 18:00 .028 732.4 67.4 60.5 19:00 .026 732.6 66.2 61.0 20:00 .023 732.8 65.5 61.3 21:00 .020 732.9 65.1 61.3 22:00 .019 C 732.9 64.7 61.5 23:00 C 732.9 64.1 61.9 Average .028 733.6 69.5 65.6 Max .038 736.9 77.6 72.6 Max Hour 14:00 00:00 12:00 10:00 Min .019 731.6 64.1 58.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 11-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 11-Oct-2026 22:50:00 23:50:00 0.07 0.07 .47% 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