Date Printed: 10/16/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/15/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .009 11.7 21.4 9.7 01:00 .005 13.2 24.1 10.8 02:00 .004 12.6 22.6 10.0 03:00 .003 12.1 21.3 9.1 04:00 .003 12.1 23.4 11.2 05:00 .002 12.4 22.5 10.1 06:00 .002 12.4 25.9 13.4 07:00 .004 11.9 23.4 11.5 08:00 .007 B B B 09:00 .016 10.4 20.2 9.7 10:00 .031 10.5 17.6 7.1 11:00 .046 11.2 19.3 8.1 12:00 .059 11.0 22.1 11.0 13:00 .059 9.8 17.5 7.7 14:00 .053 8.0 14.1 6.0 15:00 .056 8.1 15.7 7.5 16:00 .058 B 9.1 18.5 9.4 17:00 .044 8.9 17.1 8.2 18:00 .035 8.7 16.8 8.0 19:00 .025 9.6 18.1 8.4 20:00 .022 11.2 21.2 9.9 21:00 .015 12.6 21.2 8.6 22:00 .013 C 12.9 20.5 7.5 23:00 C 13.1 20.5 7.4 Average .024 11.0 20.2 9.1 Max .059 13.2 25.9 13.4 Max Hour 13:00 01:00 06:00 06:00 Min .002 8.0 14.1 6.0 Count 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 15-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 15-Oct-2026 22:50:00 23:50:00 0.068 0.07 -1.33% Date Printed: 10/16/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/15/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .022 .2 10.6 10.9 .2 01:00 .020 .3 9.7 10.1 .2 02:00 .020 .2 7.6 7.8 .2 03:00 .016 .2 7.7 8.0 .2 04:00 .009 .5 8.9 9.4 .2 05:00 .005 1.3 10.7 12.1 .2 06:00 .002 14.0 15.1 29.2 .3 07:00 .004 17.8 9.7 27.5 .4 08:00 .008 23.7 13.9 37.7 .6 09:00 .020 6.3 9.9 16.2 .3 10:00 .040 .6 2.6 3.2 .3 11:00 .045 .2 2.0 2.3 .3 12:00 .053 .2 2.1 2.3 .3 13:00 .056 .1 2.1 2.3 .3 14:00 .060 .1 2.3 2.5 .3 15:00 .063 .1 C 3.0 C 3.1 C .3 16:00 .061 C C C .4 17:00 .050 -.1 C 4.5 C 4.3 C .3 18:00 .038 .0 11.3 11.3 .3 19:00 .030 .1 12.4 12.6 .3 C 20:00 .026 .2 11.8 12.1 C 21:00 .027 .2 5.0 5.3 .3 C 22:00 .026 C .1 3.6 3.8 .2 23:00 C .1 3.4 3.5 .2 Average .030 2.8 7.3 10.3 .2 Max .063 23.7 15.1 37.7 .6 Max Hour 15:00 08:00 06:00 08:00 08:00 Min .002 -.1 2.0 2.3 .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 15-Oct-2026 15:46:00 16:11:00 69.3 70 -.98% GPT-PS 15-Oct-2026 15:46:00 16:18:00 0.4 0.0 .48 GPTZ 15-Oct-2026 15:46:00 16:38:00 224.8 225 -.08% GPT-PREC 15-Oct-2026 15:46:00 17:08:00 157.1 155 1.42% NO2 GPT-PREC 15-Oct-2026 15:46:00 17:08:00 68.3 70 -2.43% NO2 Precision NO2_Diff PRECDIFF 15-Oct-2026 17:15:00 17:15:05 67.6 68.302 -1% NOx NOx_Auto NO-PREC 15-Oct-2026 15:46:00 16:11:00 69.4 70 -.75% Ozone O3_Auto ZERO 15-Oct-2026 22:50:00 23:20:00 0.001 0.0 0.00 PREC 15-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.45% SO2 SO2_Auto ZERO 15-Oct-2026 19:46:00 20:11:00 0.1 0.0 .12 SPAN 15-Oct-2026 19:46:00 20:36:00 87.3 90 -2.93% PREC 15-Oct-2026 19:46:00 21:01:00 38.5 40 -3.73% Date Printed: 10/16/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/15/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 12.2 20.5 8.1 01:00 12.5 20.5 7.8 02:00 12.7 21.7 8.8 03:00 12.4 20.9 8.3 04:00 12.7 22.4 9.5 05:00 13.0 22.0 8.9 06:00 12.1 23.3 11.1 07:00 12.4 24.6 11.9 08:00 13.9 29.7 15.1 09:00 11.5 29.7 17.3 10:00 9.6 18.5 8.2 11:00 10.0 18.4 7.6 12:00 9.4 19.2 8.9 13:00 8.5 16.6 7.3 14:00 8.7 18.1 8.4 15:00 9.2 17.2 7.1 16:00 9.1 19.5 9.5 17:00 9.0 17.4 7.6 18:00 10.2 18.5 7.7 19:00 11.0 19.5 7.9 20:00 11.7 21.9 9.6 21:00 11.2 19.7 8.1 22:00 11.7 19.9 7.8 23:00 12.5 19.6 6.7 Average 11.1 20.8 9.1 Max 13.9 29.7 17.3 Max Hour 08:00 09:00 09:00 Min 8.5 16.6 6.7 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.73% Date Printed: 10/16/2026 01:30 Daily Summary Report Site: Union Cross 10/15/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .036 737.7 68.6 61.1 01:00 .030 737.8 67.3 61.3 02:00 .026 737.9 66.5 61.4 03:00 .022 737.6 65.8 61.3 04:00 .013 737.5 63.9 61.4 05:00 .010 737.7 63.2 61.5 06:00 .005 738.3 07:00 .003 738.9 65.6 62.2 08:00 .007 739.1 73.5 65.1 09:00 .020 739.1 79.0 67.4 10:00 .041 739.1 79.5 67.5 11:00 .047 739.0 82.0 68.7 12:00 .055 738.6 83.6 68.7 13:00 .062 737.9 85.6 69.6 14:00 .074 737.3 86.8 70.5 15:00 .064 737.4 85.9 69.6 16:00 .057 737.4 86.2 69.4 17:00 .045 737.4 83.9 68.8 18:00 .037 737.7 79.6 67.0 19:00 .042 737.9 77.4 66.1 20:00 .035 737.9 75.2 65.3 21:00 .024 737.8 72.1 65.9 22:00 .023 C 737.9 71.3 68.1 23:00 C 737.5 70.1 68.7 Average .033 738.0 75.3 65.9 Max .074 739.1 86.8 70.5 Max Hour 14:00 10:00 14:00 14:00 Min .003 737.3 63.2 61.1 Count 23 24 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 15-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 15-Oct-2026 22:50:00 23:50:00 0.069 0.07 -.33% 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