Date Printed: 6/29/2026 01:30 Daily Summary Report Site: Clemmons Middle 6/28/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .003 5.5 21.1 15.6 01:00 .002 5.3 16.8 11.5 02:00 .002 3.9 10.3 6.3 03:00 .001 4.4 13.2 8.7 04:00 .001 5.4 18.6 13.2 05:00 .002 5.1 13.2 8.0 06:00 .002 5.8 17.0 11.2 07:00 .004 6.4 17.9 11.5 08:00 .010 6.1 15.9 9.7 09:00 .019 4.8 12.3 7.5 10:00 .023 4.8 11.9 7.1 11:00 .029 4.5 10.2 5.7 12:00 .029 5.3 12.5 7.1 13:00 .029 6.2 14.0 7.7 14:00 .029 6.5 13.0 6.4 15:00 .028 B 5.4 11.7 6.2 16:00 .028 4.8 10.7 5.9 17:00 .029 4.0 8.8 4.8 18:00 .031 3.9 8.3 4.3 19:00 .029 3.9 11.1 7.2 20:00 .024 4.3 21.5 17.2 21:00 .018 4.9 23.2 18.2 22:00 .011 C 5.0 19.2 14.2 23:00 C 5.1 18.6 13.5 Average .016 5.0 14.6 9.5 Max .031 6.5 23.2 18.2 Max Hour 18:00 14:00 21:00 21:00 Min .001 3.9 8.3 4.3 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 28-Jun-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 28-Jun-2026 22:50:00 23:50:00 0.067 0.07 -3.97% Date Printed: 6/29/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 6/28/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .013 1.1 6.2 7.3 -.5 01:00 .011 1.0 6.0 7.0 -.5 02:00 .009 1.1 6.0 7.2 -.5 03:00 .010 1.2 5.2 6.5 -.5 04:00 .010 .9 4.7 5.7 -.5 05:00 .006 1.1 5.5 6.6 -.5 06:00 .006 2.0 4.9 7.0 -.5 07:00 .011 1.8 3.6 5.4 -.5 08:00 .018 1.2 3.0 4.3 -.5 09:00 .023 .8 2.3 3.1 -.5 10:00 .026 .7 2.1 2.8 -.5 11:00 .030 .6 1.7 2.4 -.5 12:00 .030 .7 2.0 2.7 -.4 13:00 .031 .5 2.1 2.7 -.5 14:00 .030 .5 2.4 3.0 -.5 15:00 .029 .5 C 2.2 C 2.8 C -.5 16:00 .029 C C C -.5 17:00 .029 .6 C 2.1 C 2.7 C -.5 18:00 .032 .5 1.9 2.5 -.5 19:00 .032 .4 2.8 3.3 -.5 C 20:00 .024 .5 4.5 5.1 C 21:00 .022 .8 5.1 5.9 -.5 C 22:00 .018 C .6 5.4 6.1 -.5 23:00 C .6 7.0 7.6 -.5 Average .020 .8 3.8 4.7 -.4 Max .032 2.0 7.0 7.6 -.4 Max Hour 19:00 06:00 23:00 23:00 12:00 Min .006 .4 1.7 2.4 -.5 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 28-Jun-2026 15:46:00 16:11:00 66.4 70 -5.01% GPT-PS 28-Jun-2026 15:46:00 16:18:00 0.5 0.0 .58 GPTZ 28-Jun-2026 15:46:00 16:38:00 214.8 225 -4.52% GPT-PREC 28-Jun-2026 15:46:00 17:08:00 149.7 155 -3.4% NO2 GPT-PREC 28-Jun-2026 15:46:00 17:08:00 65.7 70 -6.11% NO2 Precision NO2_Diff PRECDIFF 28-Jun-2026 17:15:00 17:15:05 65.1 65.722 -.95% NOx NOx_Auto NO-PREC 28-Jun-2026 15:46:00 16:11:00 66.4 70 -5.01% Ozone O3_Auto ZERO 28-Jun-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 28-Jun-2026 22:50:00 23:50:00 0.067 0.07 -3.39% SO2 SO2_Auto ZERO 28-Jun-2026 19:46:00 20:11:00 -0.7 0.0 -.7 SPAN 28-Jun-2026 19:46:00 20:36:00 86.9 90 -3.36% PREC 28-Jun-2026 19:46:00 21:01:00 38.1 40 -4.72% Date Printed: 6/29/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 6/28/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 6.7 18.7 11.6 01:00 6.9 22.0 14.6 02:00 7.1 19.8 12.2 03:00 7.5 20.4 12.4 04:00 7.6 20.9 12.8 05:00 7.5 21.3 13.4 06:00 7.3 18.8 11.1 07:00 6.9 18.0 10.5 08:00 6.1 14.9 8.2 09:00 4.9 12.7 7.3 10:00 4.7 13.3 8.0 11:00 4.2 11.5 6.6 12:00 4.3 11.0 6.1 13:00 5.5 12.6 6.4 14:00 6.8 14.6 7.1 15:00 5.7 13.5 7.1 16:00 5.1 11.7 5.9 17:00 4.7 11.0 5.8 18:00 4.6 11.5 6.4 19:00 4.3 17.4 12.5 20:00 3.9 15.6 11.2 21:00 4.4 14.2 9.3 22:00 4.8 14.1 8.9 23:00 5.1 15.5 10.0 Average 5.6 15.6 9.3 Max 7.6 22.0 14.6 Max Hour 04:00 01:00 01:00 Min 3.9 11.0 5.8 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -4.72% Date Printed: 6/29/2026 01:30 Daily Summary Report Site: Union Cross 6/28/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .011 736.2 69.3 68.9 01:00 .011 736.0 69.3 69.2 02:00 .010 735.4 69.5 69.5 03:00 .008 735.3 69.3 69.3 04:00 .007 735.5 69.3 69.3 05:00 .006 735.6 69.5 69.5 06:00 .007 735.7 69.9 69.8 07:00 .009 735.9 71.6 70.4 08:00 .016 735.9 75.2 69.8 09:00 .023 735.7 78.1 69.3 10:00 .029 735.7 80.3 70.0 11:00 .033 735.7 83.0 70.3 12:00 .034 735.3 84.7 70.8 13:00 .032 735.0 84.0 71.5 14:00 .032 734.8 82.8 71.8 15:00 .034 734.6 83.0 72.0 16:00 .034 734.5 84.6 71.9 17:00 .031 734.5 84.9 71.7 18:00 .032 734.8 83.3 71.0 19:00 .037 735.5 74.5 69.4 20:00 .029 735.9 74.7 69.3 21:00 .023 736.3 73.5 69.6 22:00 .020 C 736.3 72.2 69.1 23:00 C 736.3 71.3 69.1 Average .022 735.5 76.1 70.1 Max .037 736.3 84.9 72.0 Max Hour 19:00 23:00 17:00 15:00 Min .006 734.5 69.3 68.9 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 28-Jun-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 28-Jun-2026 22:50:00 23:50:00 0.07 0.07 .32% 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