Date Printed: 8/7/2026 01:30 Daily Summary Report Site: Clemmons Middle 8/6/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .018 B 8.9 18.2 9.2 01:00 .020 9.1 18.3 9.2 02:00 .020 7.8 20.0 12.1 03:00 .021 7.0 24.2 17.2 04:00 .022 6.0 24.4 18.3 05:00 .024 B 5.2 22.2 16.9 06:00 .019 5.2 19.7 14.5 07:00 .022 5.0 14.3 9.2 08:00 .027 4.9 12.6 7.6 09:00 .034 4.8 11.5 6.7 10:00 .038 4.9 10.6 5.6 11:00 .038 4.6 10.1 5.4 12:00 .039 4.9 10.2 5.2 13:00 .046 5.7 11.5 5.8 14:00 .047 6.3 10.9 4.6 15:00 .051 6.8 12.1 5.2 16:00 .056 6.6 12.5 5.9 17:00 .045 6.4 12.8 6.4 18:00 .038 4.6 22.3 17.6 19:00 .030 3.7 18.8 15.0 20:00 .028 4.2 20.0 15.7 21:00 .022 4.3 17.7 13.4 22:00 .021 B 4.9 17.0 11.9 23:00 C 5.6 16.6 11.0 Average .031 5.7 16.1 10.4 Max .056 9.1 24.4 18.3 Max Hour 16:00 01:00 04:00 04:00 Min .018 3.7 10.1 4.6 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 06-Aug-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 06-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.19% Date Printed: 8/7/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 8/6/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .024 .2 3.2 3.4 .1 01:00 .022 .2 3.7 4.0 .1 02:00 .026 .2 2.1 2.3 .1 03:00 .026 .1 2.1 2.2 .1 04:00 .023 .2 2.5 2.7 .1 05:00 .024 .3 3.8 4.2 .0 06:00 .022 .6 4.8 5.4 .1 07:00 .025 1.2 4.1 5.2 .1 08:00 .028 1.5 3.7 5.4 .1 09:00 .037 .6 2.5 3.2 .1 10:00 .040 .4 2.4 2.8 .1 11:00 .046 .4 2.7 3.1 .2 12:00 .048 .3 1.8 2.1 .2 13:00 .049 .2 1.6 1.8 .1 14:00 .054 .2 1.9 2.1 .2 15:00 .055 .2 C 2.1 C 2.3 C .2 16:00 .057 C C C .2 17:00 .053 .2 C 2.7 C 2.9 C .2 18:00 .041 .1 2.4 2.6 .2 19:00 .036 .2 3.6 3.8 .1 C 20:00 .036 .1 3.2 3.3 C 21:00 .030 .2 3.7 4.0 .2 C 22:00 .027 C .2 4.2 4.4 .2 23:00 C .2 3.8 4.1 .1 Average .036 .3 2.9 3.3 .1 Max .057 1.5 4.8 5.4 .2 Max Hour 16:00 08:00 06:00 08:00 22:00 Min .022 .1 1.6 1.8 .0 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 06-Aug-2026 15:46:00 16:11:00 65.6 70 -6.27% GPT-PS 06-Aug-2026 15:46:00 16:18:00 0.4 0.0 .45 GPTZ 06-Aug-2026 15:46:00 16:38:00 212.9 225 -5.36% GPT-PREC 06-Aug-2026 15:46:00 17:08:00 148.5 155 -4.16% NO2 GPT-PREC 06-Aug-2026 15:46:00 17:08:00 65.1 70 -6.91% NO2 Precision NO2_Diff PRECDIFF 06-Aug-2026 17:15:00 17:15:05 64.3 65.164 -1.2% NOx NOx_Auto NO-PREC 06-Aug-2026 15:46:00 16:11:00 65.9 70 -5.8% Ozone O3_Auto ZERO 06-Aug-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 06-Aug-2026 22:50:00 23:50:00 0.067 0.07 -3.28% SO2 SO2_Auto ZERO 06-Aug-2026 19:46:00 20:11:00 0 0.0 -.01 SPAN 06-Aug-2026 19:46:00 20:36:00 90 90 0.00% PREC 06-Aug-2026 19:46:00 21:01:00 39.6 40 -.8% Date Printed: 8/7/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 8/6/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 9.3 17.6 7.9 01:00 10.2 22.6 11.8 02:00 8.7 22.9 13.7 03:00 7.5 28.7 20.7 04:00 7.2 28.9 21.2 05:00 5.8 28.8 22.6 06:00 5.7 23.8 17.8 07:00 7.9 22.3 13.9 08:00 7.1 16.1 8.6 09:00 5.3 11.5 5.8 10:00 5.4 13.1 7.3 11:00 5.7 13.3 7.1 12:00 6.0 12.8 6.2 13:00 6.3 12.7 5.8 14:00 7.0 13.8 6.1 15:00 7.7 14.6 6.2 16:00 7.4 16.1 7.9 17:00 7.2 16.0 8.1 18:00 5.9 24.3 17.6 19:00 4.9 17.6 12.2 20:00 3.9 14.6 10.3 21:00 4.3 18.8 14.1 22:00 5.5 15.0 9.2 23:00 5.8 17.7 11.6 Average 6.5 18.4 11.4 Max 10.2 28.9 22.6 Max Hour 01:00 04:00 05:00 Min 3.9 11.5 5.8 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -.8% Date Printed: 8/7/2026 01:30 Daily Summary Report Site: Union Cross 8/6/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .025 740.4 75.6 73.5 01:00 .024 739.9 75.0 72.7 02:00 .031 740.0 73.0 69.6 03:00 .030 740.1 71.9 69.0 04:00 .030 740.2 71.4 68.7 05:00 .028 740.5 70.3 68.7 06:00 .029 740.8 70.6 68.7 07:00 .029 741.2 72.8 69.2 08:00 .033 741.3 74.7 69.1 09:00 .040 741.3 77.7 69.6 10:00 .044 741.6 80.0 70.3 11:00 .044 741.7 80.9 71.0 12:00 .049 741.4 83.2 72.0 13:00 .055 740.9 84.5 73.1 14:00 .052 740.3 86.3 72.9 15:00 .050 739.9 87.3 72.9 16:00 .052 740.1 87.2 72.6 17:00 .050 740.3 85.6 72.6 18:00 .038 740.8 76.1 69.5 19:00 .026 740.3 72.6 69.7 20:00 .030 741.5 71.9 68.0 21:00 .028 741.8 70.8 68.1 22:00 .024 C 742.0 70.9 68.9 23:00 C 742.4 71.6 69.7 Average .036 740.8 76.7 70.4 Max .055 742.4 87.3 73.5 Max Hour 13:00 23:00 15:00 00:00 Min .024 739.9 70.3 68.0 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 06-Aug-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 06-Aug-2026 22:50:00 23:50:00 0.069 0.07 -.82% 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