Date Printed: 8/16/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/15/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .002 8.1 20.7 12.6 01:00 .002 8.3 20.9 12.6 02:00 .000 8.3 21.4 13.1 03:00 .000 8.7 25.0 16.3 04:00 .001 9.3 28.7 19.3 05:00 .001 8.5 23.8 15.3 06:00 .003 7.9 20.8 12.9 07:00 .023 B 7.9 14.5 6.6 08:00 .034 7.4 14.1 6.6 09:00 .046 7.5 13.7 6.2 10:00 .057 8.0 14.6 6.6 11:00 .062 8.5 15.3 6.8 12:00 .067 8.8 16.5 7.6 13:00 .072 B 8.9 17.0 8.0 14:00 .056 8.7 17.0 8.2 15:00 .042 5.3 20.5 15.1 16:00 .032 5.2 13.0 7.7 17:00 .029 5.4 12.6 7.2 18:00 .023 5.7 12.7 6.9 19:00 .012 7.8 15.4 7.6 20:00 .008 6.2 14.9 8.6 21:00 .006 6.2 15.3 9.0 22:00 .004 C 6.3 15.6 9.2 23:00 C 6.4 18.3 11.8 Average .025 7.4 17.5 10.0 Max .072 9.3 28.7 19.3 Max Hour 13:00 04:00 04:00 04:00 Min .000 5.2 12.6 6.2 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 15-Aug-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 15-Aug-2026 22:50:00 23:50:00 0.066 0.07 -3.75% Date Printed: 8/16/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/15/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .016 .3 5.4 5.8 .1 01:00 .014 .3 4.9 5.2 .1 02:00 .010 .3 5.9 6.3 .1 03:00 .006 .5 6.1 6.6 .1 04:00 .003 1.1 7.4 8.5 .1 05:00 .008 .8 4.0 4.8 .1 06:00 .018 .6 2.9 3.5 .1 07:00 .028 .4 2.0 2.5 .1 08:00 .035 1.6 5.1 6.7 .3 09:00 .043 1.6 5.9 7.5 .3 10:00 .049 2.0 7.8 9.9 .4 11:00 .047 2.9 10.8 13.7 .4 12:00 .055 1.4 8.8 10.2 .3 13:00 .071 .4 4.7 5.2 .3 14:00 .062 .1 3.2 3.4 .2 15:00 .044 .3 C 2.7 C 3.0 C .1 16:00 .037 C C C .2 17:00 .041 .5 C 4.6 C 5.2 C .1 18:00 .035 .3 4.0 4.4 .1 19:00 .030 .2 4.2 4.5 .1 C 20:00 .022 .3 6.2 6.5 C 21:00 .015 .4 8.1 8.5 .2 C 22:00 .014 C .4 9.9 10.4 .1 23:00 C .5 9.1 9.7 .1 Average .030 .7 5.8 6.6 .1 Max .071 2.9 10.8 13.7 .4 Max Hour 13:00 11:00 11:00 11:00 11:00 Min .003 .1 2.0 2.5 .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 15-Aug-2026 15:46:00 16:11:00 65.6 70 -6.21% GPT-PS 15-Aug-2026 15:46:00 16:18:00 0.5 0.0 .54 GPTZ 15-Aug-2026 15:46:00 16:38:00 212.7 225 -5.46% GPT-PREC 15-Aug-2026 15:46:00 17:08:00 148.3 155 -4.31% NO2 GPT-PREC 15-Aug-2026 15:46:00 17:08:00 64.6 70 -7.64% NO2 Precision NO2_Diff PRECDIFF 15-Aug-2026 17:15:00 17:15:05 64.3 64.653 -.4% NOx NOx_Auto NO-PREC 15-Aug-2026 15:46:00 16:11:00 65.6 70 -6.17% Ozone O3_Auto ZERO 15-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 15-Aug-2026 22:50:00 23:50:00 0.067 0.07 -2.82% SO2 SO2_Auto ZERO 15-Aug-2026 19:46:00 20:11:00 0 0.0 .02 SPAN 15-Aug-2026 19:46:00 20:36:00 89.6 90 -.42% PREC 15-Aug-2026 19:46:00 21:01:00 39.5 40 -1.06% Date Printed: 8/16/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/15/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 7.9 15.1 6.6 01:00 8.0 15.6 7.1 02:00 8.2 16.8 8.1 03:00 8.2 16.6 7.9 04:00 8.2 17.1 8.5 05:00 8.0 15.0 6.6 06:00 8.6 16.8 7.7 07:00 8.1 16.3 7.6 08:00 7.6 14.4 6.3 09:00 7.9 15.6 7.0 10:00 7.9 17.1 8.3 11:00 7.9 17.1 8.3 12:00 8.2 16.7 7.6 13:00 8.3 16.1 6.9 14:00 8.2 16.7 7.7 15:00 6.4 15.7 8.8 16:00 6.8 15.7 8.3 17:00 6.7 14.7 7.5 18:00 6.0 12.5 6.1 19:00 8.0 13.9 5.5 20:00 7.0 13.8 6.5 21:00 7.1 13.7 6.2 22:00 7.5 14.7 6.8 23:00 7.0 14.9 7.5 Average 7.6 15.5 7.3 Max 8.6 17.1 8.8 Max Hour 06:00 11:00 15:00 Min 6.0 12.5 5.5 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -1.06% Date Printed: 8/16/2026 01:30 Daily Summary Report Site: Union Cross 8/15/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .013 738.9 77.8 74.9 01:00 .011 738.8 76.9 75.1 02:00 .005 738.7 76.2 75.1 03:00 .004 738.8 75.4 74.8 04:00 .002 738.9 74.8 74.5 05:00 .003 739.0 74.8 74.3 06:00 .019 739.4 75.4 71.4 07:00 .030 739.7 77.6 71.4 08:00 .040 739.9 80.1 71.7 09:00 .047 740.1 83.0 72.2 10:00 .052 740.4 85.3 72.7 11:00 .051 740.4 86.7 72.8 12:00 .052 740.0 87.8 73.5 13:00 .059 739.2 88.4 73.8 14:00 .063 739.0 89.1 74.1 15:00 .046 739.2 78.9 72.8 16:00 .038 739.5 77.5 74.1 17:00 .042 739.7 79.6 73.3 18:00 .037 739.2 79.3 73.0 19:00 .023 739.2 77.4 73.5 20:00 .018 739.5 76.1 73.6 21:00 .010 739.8 75.5 73.8 22:00 .008 C 739.9 75.2 73.8 23:00 C 739.7 74.8 73.7 Average .029 739.4 79.3 73.4 Max .063 740.4 89.1 75.1 Max Hour 14:00 11:00 14:00 02:00 Min .002 738.7 74.8 71.4 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 15-Aug-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 15-Aug-2026 22:50:00 23:50:00 0.069 0.07 -1.03% 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