Date Printed: 8/8/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/7/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .010 6.0 20.3 14.2 01:00 .006 6.3 21.3 15.0 02:00 .007 6.9 20.5 13.5 03:00 .007 7.0 19.6 12.5 04:00 .006 6.9 21.3 14.3 05:00 .004 7.5 18.7 11.1 06:00 .006 7.3 16.2 8.9 07:00 .010 7.0 16.3 9.3 08:00 .021 5.1 12.4 7.3 09:00 .029 5.1 12.8 7.6 10:00 .034 5.4 12.6 7.1 11:00 .036 5.3 11.9 6.6 12:00 .038 5.0 10.8 5.8 13:00 .040 5.2 11.9 6.6 14:00 .047 5.3 12.0 6.6 15:00 .044 B 5.4 12.5 7.0 16:00 .037 5.2 12.3 7.0 17:00 .032 5.0 10.7 5.6 18:00 .024 5.0 11.7 6.6 19:00 .017 5.3 12.5 7.1 20:00 .015 6.0 14.7 8.7 21:00 .010 6.2 14.8 8.5 22:00 .009 C 6.8 15.3 8.4 23:00 C 7.2 15.8 8.6 Average .021 5.9 14.9 8.9 Max .047 7.5 21.3 15.0 Max Hour 14:00 05:00 04:00 01:00 Min .004 5.0 10.7 5.6 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 07-Aug-2026 22:50:00 23:20:00 -0.002 0.0 0.00 PREC 07-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.74% Date Printed: 8/8/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/7/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .024 .2 4.2 4.4 .1 01:00 .020 .2 4.4 4.7 .1 02:00 .018 .2 3.8 4.0 .1 03:00 .015 .3 4.2 4.6 .1 04:00 .014 .3 4.2 4.5 .1 05:00 .009 .5 6.5 7.1 .1 06:00 .010 1.8 7.2 9.1 .1 07:00 .018 2.0 5.4 7.5 .2 08:00 .025 1.5 4.3 5.8 .1 09:00 .031 1.2 3.8 5.0 .2 10:00 .041 .6 3.0 3.7 .2 11:00 .043 .3 2.0 2.4 .2 12:00 .040 .3 1.5 1.8 .1 13:00 .042 .3 1.4 1.8 .2 14:00 .045 .2 1.6 1.8 .2 15:00 .051 .2 C 2.0 C 2.3 C .2 16:00 .045 C C C .2 17:00 .037 .4 C 3.3 C 3.7 C .1 18:00 .039 .2 2.4 2.6 .1 19:00 .030 .2 3.5 3.7 .1 C 20:00 .019 .2 6.3 6.5 C 21:00 .013 .2 10.9 11.2 .2 C 22:00 .013 C .2 9.0 9.3 .1 23:00 C .2 5.6 5.8 .1 Average .027 .5 4.3 4.9 .1 Max .051 2.0 10.9 11.2 .2 Max Hour 15:00 07:00 21:00 21:00 21:00 Min .009 .2 1.4 1.8 .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 07-Aug-2026 15:46:00 16:11:00 65.6 70 -6.28% GPT-PS 07-Aug-2026 15:46:00 16:18:00 0.5 0.0 .57 GPTZ 07-Aug-2026 15:46:00 16:38:00 213 225 -5.32% GPT-PREC 07-Aug-2026 15:46:00 17:08:00 149.3 155 -3.62% NO2 GPT-PREC 07-Aug-2026 15:46:00 17:08:00 64.4 70 -7.99% NO2 Precision NO2_Diff PRECDIFF 07-Aug-2026 17:15:00 17:15:05 63.6 64.405 -1.18% NOx NOx_Auto NO-PREC 07-Aug-2026 15:46:00 16:11:00 66 70 -5.69% Ozone O3_Auto ZERO 07-Aug-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 07-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.9% SO2 SO2_Auto ZERO 07-Aug-2026 19:46:00 20:11:00 0 0.0 .05 SPAN 07-Aug-2026 19:46:00 20:36:00 89.9 90 -.05% PREC 07-Aug-2026 19:46:00 21:01:00 39.6 40 -.9% Date Printed: 8/8/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/7/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 5.7 15.0 9.0 01:00 6.1 15.0 8.6 02:00 6.6 18.5 11.6 03:00 6.6 17.5 10.7 04:00 6.6 17.7 10.8 05:00 6.9 17.8 10.6 06:00 6.7 14.9 8.0 07:00 6.1 13.8 7.3 08:00 5.5 13.6 7.6 09:00 5.6 14.9 8.7 10:00 6.1 14.3 7.7 11:00 6.4 16.7 9.5 12:00 5.8 13.3 6.8 13:00 5.5 12.9 6.7 14:00 5.7 12.7 6.3 15:00 6.1 15.0 8.2 16:00 6.1 12.8 6.1 17:00 5.9 16.8 10.5 18:00 4.8 21.4 16.2 19:00 4.6 18.4 13.4 20:00 6.0 17.3 10.9 21:00 7.3 21.3 13.6 22:00 7.3 18.8 11.1 23:00 7.1 20.6 13.1 Average 6.1 16.2 9.7 Max 7.3 21.4 16.2 Max Hour 22:00 18:00 18:00 Min 4.6 12.7 6.1 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -.9% Date Printed: 8/8/2026 01:30 Daily Summary Report Site: Union Cross 8/7/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .017 742.1 71.4 70.1 01:00 .017 741.4 70.9 69.6 02:00 .011 741.2 70.1 69.4 03:00 .009 741.1 69.7 69.6 04:00 .008 741.1 69.5 69.4 05:00 .009 741.4 69.1 69.1 06:00 .011 741.8 69.5 69.5 07:00 .015 742.1 71.8 70.7 08:00 .025 742.2 75.9 69.6 09:00 .034 742.1 78.9 70.0 10:00 .040 742.2 81.5 70.8 11:00 .039 742.0 83.6 71.4 12:00 .041 741.5 85.5 71.7 13:00 .048 740.8 85.6 72.8 14:00 .045 740.4 85.1 72.7 15:00 .044 740.4 85.2 73.0 16:00 .039 740.1 84.9 73.0 17:00 .038 740.0 84.7 71.9 18:00 .036 740.2 80.2 71.8 19:00 .027 740.1 77.9 71.7 20:00 .020 740.2 77.4 71.4 21:00 .021 740.5 77.7 71.1 22:00 .019 C 740.6 76.6 71.4 23:00 C 740.4 75.5 71.2 Average .026 741.0 77.4 70.9 Max .048 742.2 85.6 73.0 Max Hour 13:00 10:00 13:00 16:00 Min .008 740.0 69.1 69.1 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 07-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 07-Aug-2026 22:50:00 23:50:00 0.07 0.07 .99% 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