Date Printed: 8/1/2026 01:30 Daily Summary Report Site: Clemmons Middle 7/31/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .018 5.0 11.2 6.1 01:00 .017 5.4 12.1 6.7 02:00 .014 5.5 13.1 7.5 03:00 .011 5.5 12.5 6.9 04:00 .010 5.6 12.3 6.6 05:00 .006 5.6 13.1 7.5 06:00 .006 6.1 13.0 6.9 07:00 .014 6.4 13.6 7.1 08:00 .026 6.6 13.3 6.7 09:00 .042 6.6 13.2 6.6 10:00 .052 6.6 14.0 7.3 11:00 .050 6.0 12.2 6.1 12:00 .046 B 5.6 11.9 6.2 13:00 .044 B 5.0 9.9 4.8 14:00 .045 5.8 11.6 5.7 15:00 .046 6.3 12.3 5.9 16:00 .048 6.1 11.8 5.6 17:00 .049 6.2 13.0 6.7 18:00 .044 8.5 41.9 33.4 19:00 .036 10.0 47.2 37.1 20:00 .029 8.5 29.7 21.2 21:00 .021 9.9 30.7 20.7 22:00 .016 C 8.9 20.5 11.6 23:00 C 8.3 18.0 9.7 Average .030 6.6 17.1 10.4 Max .052 10.0 47.2 37.1 Max Hour 10:00 19:00 19:00 19:00 Min .006 5.0 9.9 4.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 31-Jul-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 31-Jul-2026 22:50:00 23:50:00 0.067 0.07 -2.42% Date Printed: 8/1/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 7/31/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .019 .2 10.6 10.8 .2 01:00 .020 .1 7.9 8.1 .1 02:00 .017 .1 7.8 8.0 .1 03:00 .006 2.1 14.1 16.3 .1 04:00 .013 .3 9.5 9.9 .1 05:00 .010 .6 9.6 10.2 .1 06:00 .006 6.3 9.9 16.2 .2 07:00 .018 6.0 10.6 16.7 .3 08:00 D 1.5 5.1 6.7 .4 09:00 D 2.1 6.9 9.0 .4 10:00 D 1.3 5.8 7.2 .4 11:00 .058 .4 3.4 3.9 .3 12:00 .058 .2 2.2 2.5 .3 13:00 .053 .2 2.0 2.2 .3 14:00 .048 .2 1.6 1.9 .2 15:00 .048 .2 1.7 2.0 .2 16:00 .050 .2 2.0 2.2 .2 17:00 .052 .1 C 1.9 C 2.0 C .3 18:00 .051 C C C .2 19:00 .046 .0 C 6.4 C 6.4 C .2 C 20:00 .036 .1 8.2 8.3 C 21:00 .029 .1 9.7 9.9 .2 C 22:00 .017 C .3 11.6 11.9 .1 23:00 C .3 11.4 11.8 .2 Average .032 .9 6.9 8.0 .2 Max .058 6.3 14.1 16.7 .4 Max Hour 12:00 06:00 03:00 07:00 10:00 Min .006 .0 1.6 1.9 .1 Count 20 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 31-Jul-2026 17:46:00 18:11:00 65.9 70 -5.82% GPT-PS 31-Jul-2026 17:46:00 18:18:00 0.6 0.0 .65 GPTZ 31-Jul-2026 17:46:00 18:38:00 213.6 225 -5.05% GPT-PREC 31-Jul-2026 17:46:00 19:08:00 148.7 155 -4.03% NO2 GPT-PREC 31-Jul-2026 17:46:00 19:08:00 65.5 70 -6.34% NO2 Precision NO2_Diff PRECDIFF 31-Jul-2026 20:15:00 20:15:05 64.8 65.564 -1.03% NOx NOx_Auto NO-PREC 31-Jul-2026 17:46:00 18:11:00 65.8 70 -5.88% Ozone O3_Auto ZERO 31-Jul-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 31-Jul-2026 22:50:00 23:50:00 0.068 0.07 -1.35% SO2 SO2_Auto ZERO 31-Jul-2026 19:46:00 20:11:00 0 0.0 .07 SPAN 31-Jul-2026 19:46:00 20:36:00 90.5 90 .56% PREC 31-Jul-2026 19:46:00 21:01:00 39.9 40 -.24% Date Printed: 8/1/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 7/31/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 5.8 14.5 8.5 01:00 5.9 13.8 7.8 02:00 7.8 27.2 19.1 03:00 6.3 13.6 7.2 04:00 6.3 14.4 7.9 05:00 6.1 12.6 6.4 06:00 6.9 18.9 11.8 07:00 8.2 21.9 13.0 08:00 6.2 13.3 6.6 09:00 5.7 11.2 5.1 10:00 6.0 12.7 6.2 11:00 6.2 15.2 8.3 12:00 6.3 13.5 6.4 13:00 6.5 15.6 8.3 14:00 6.1 14.6 7.6 15:00 5.6 11.7 5.5 16:00 6.2 14.8 7.8 17:00 6.7 13.9 6.5 18:00 6.7 14.4 7.1 19:00 7.8 14.6 6.3 20:00 8.1 15.9 7.3 21:00 13.4 23.8 9.8 22:00 12.0 20.9 8.4 23:00 10.3 18.6 7.9 Average 7.2 15.9 8.2 Max 13.4 27.2 19.1 Max Hour 21:00 02:00 02:00 Min 5.6 11.2 5.1 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -.24% Date Printed: 8/1/2026 01:30 Daily Summary Report Site: Union Cross 7/31/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .020 736.7 67.4 57.1 01:00 .015 736.5 65.2 57.4 02:00 .012 736.4 65.0 57.3 03:00 .009 736.3 63.0 57.8 04:00 .007 736.2 61.0 O 58.2 O 05:00 .004 736.3 60.3 O 58.3 O 06:00 .005 736.8 63.8 59.0 07:00 .015 737.1 69.0 59.6 08:00 .029 737.3 74.0 59.3 09:00 .045 737.1 77.3 60.4 10:00 .052 737.1 79.5 61.6 11:00 .061 736.9 81.5 62.6 12:00 .061 736.6 83.2 62.2 13:00 .059 736.4 84.1 62.5 14:00 .052 736.3 84.6 62.9 15:00 .050 735.9 85.0 62.6 16:00 .050 735.7 85.1 63.3 17:00 .049 735.6 84.7 63.9 18:00 .046 735.3 82.5 63.1 19:00 .034 735.3 79.1 62.2 20:00 .029 735.4 75.8 61.5 21:00 .023 735.7 71.7 61.6 22:00 .020 C 735.7 72.3 60.2 23:00 C 735.7 72.4 60.1 Average .032 736.2 74.4 60.6 Max .061 737.3 85.1 63.9 Max Hour 12:00 08:00 16:00 17:00 Min .004 735.3 60.3 57.1 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 31-Jul-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 31-Jul-2026 22:50:00 23:50:00 0.069 0.07 -.64% 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