Date Printed: 10/13/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/12/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .014 4.8 12.4 7.5 01:00 .014 4.4 11.6 7.2 02:00 .011 4.4 13.3 8.9 03:00 .010 4.1 12.9 8.8 04:00 .008 4.0 12.6 8.6 05:00 .006 3.9 12.2 8.2 06:00 .004 3.8 13.2 9.3 07:00 .006 3.5 10.8 7.2 08:00 .017 2.1 6.7 4.5 09:00 .024 1.7 5.8 4.0 10:00 .031 1.5 4.7 3.2 11:00 .034 1.5 4.1 2.6 12:00 .036 1.5 6.1 4.5 13:00 .036 1.8 7.0 5.1 14:00 .037 1.2 5.0 3.7 15:00 .038 1.2 4.5 3.2 16:00 .038 1.3 3.8 2.5 17:00 .031 1.7 4.3 2.6 18:00 .022 3.5 7.7 4.2 19:00 .023 3.3 7.4 4.1 20:00 .022 3.6 8.3 4.6 21:00 .016 4.9 11.0 6.1 22:00 .011 C 5.4 14.0 8.5 23:00 B 4.8 12.6 7.8 Average .021 3.0 8.8 5.7 Max .038 5.4 14.0 9.3 Max Hour 16:00 22:00 22:00 06:00 Min .004 1.2 3.8 2.5 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 12-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 12-Oct-2026 22:50:00 23:50:00 0.069 0.07 -.94% Date Printed: 10/13/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/12/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .016 .1 2.8 2.9 .3 01:00 .013 .1 3.0 3.2 .2 02:00 .011 .1 3.1 3.3 .2 03:00 .009 .1 2.8 3.0 .2 04:00 .007 .3 4.0 4.4 .2 05:00 .006 1.4 6.1 7.5 .2 06:00 .010 .9 5.9 6.9 .2 07:00 .017 1.0 4.7 5.8 .2 08:00 .022 .8 2.7 3.6 .2 09:00 .026 .5 1.7 2.3 .2 10:00 .029 .5 1.6 2.2 .2 11:00 .032 .5 1.7 2.3 .2 12:00 .034 .4 1.7 2.2 .2 13:00 .036 .5 1.9 2.4 .2 14:00 .036 .4 2.0 2.5 .2 15:00 .036 .3 C 2.0 C 2.3 C .2 16:00 .036 C C C .3 17:00 .031 .2 C 8.3 C 8.5 C .3 18:00 .029 .1 9.2 9.4 .2 19:00 .021 .1 14.5 14.7 .2 C 20:00 .020 .1 13.8 14.0 C 21:00 .021 .2 11.8 12.0 .3 C 22:00 .009 C .4 13.2 13.7 .2 23:00 C .2 17.5 17.8 .2 Average .022 .4 5.9 6.3 .2 Max .036 1.4 17.5 17.8 .3 Max Hour 16:00 05:00 23:00 23:00 21:00 Min .006 .1 1.6 2.2 .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 12-Oct-2026 15:46:00 16:11:00 69.2 70 -1.13% GPT-PS 12-Oct-2026 15:46:00 16:18:00 0.4 0.0 .47 GPTZ 12-Oct-2026 15:46:00 16:38:00 224.4 225 -.26% GPT-PREC 12-Oct-2026 15:46:00 17:08:00 156.8 155 1.17% NO2 GPT-PREC 12-Oct-2026 15:46:00 17:08:00 68.1 70 -2.7% NO2 Precision NO2_Diff PRECDIFF 12-Oct-2026 17:15:00 17:15:05 67.5 68.112 -.76% NOx NOx_Auto NO-PREC 12-Oct-2026 15:46:00 16:11:00 69 70 -1.29% Ozone O3_Auto ZERO 12-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 12-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.57% SO2 SO2_Auto ZERO 12-Oct-2026 19:46:00 20:11:00 0.1 0.0 .15 SPAN 12-Oct-2026 19:46:00 20:36:00 87.3 90 -2.91% PREC 12-Oct-2026 19:46:00 21:01:00 38.7 40 -3.18% Date Printed: 10/13/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/12/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 4.7 11.5 6.6 01:00 4.6 12.5 7.8 02:00 4.5 12.3 7.6 03:00 4.3 12.4 7.9 04:00 4.0 12.7 8.6 05:00 3.9 10.8 6.9 06:00 2.5 8.2 5.6 07:00 1.6 6.6 4.8 08:00 1.5 7.0 5.4 09:00 1.6 8.1 6.2 10:00 1.4 9.1 7.4 11:00 1.3 6.9 5.3 12:00 1.5 7.9 6.0 13:00 1.1 4.8 3.4 14:00 1.1 6.1 4.7 15:00 1.3 5.9 4.3 16:00 1.2 5.1 3.7 17:00 3.2 7.2 3.8 18:00 2.8 7.5 4.5 19:00 4.5 12.7 8.0 20:00 4.3 10.1 5.7 21:00 3.9 10.2 6.2 22:00 4.9 11.2 6.3 23:00 5.8 13.9 8.1 Average 2.9 9.1 6.0 Max 5.8 13.9 8.6 Max Hour 23:00 23:00 04:00 Min 1.1 4.8 3.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.18% Date Printed: 10/13/2026 01:30 Daily Summary Report Site: Union Cross 10/12/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .015 732.7 62.9 61.5 01:00 .014 732.9 62.2 60.8 02:00 .012 732.8 61.4 60.4 03:00 .008 732.9 60.7 60.1 04:00 .008 733.3 60.2 59.8 05:00 .006 733.9 60.0 59.4 06:00 .008 734.5 60.6 58.8 07:00 .011 735.1 63.9 58.5 08:00 .023 735.5 69.3 58.7 09:00 .026 736.0 71.6 59.6 10:00 .030 736.2 74.2 60.6 11:00 .033 736.3 75.0 60.2 12:00 .035 736.2 76.4 60.8 13:00 .037 735.8 77.3 61.0 14:00 .037 735.4 78.2 61.3 15:00 .038 735.5 78.9 61.7 16:00 .037 735.4 78.6 61.7 17:00 .034 735.4 76.4 60.5 18:00 .029 735.7 73.3 59.1 19:00 .027 736.2 71.4 57.9 20:00 .027 736.3 69.6 56.1 21:00 .022 736.7 66.9 55.6 22:00 .020 C 736.9 64.9 54.8 23:00 C 737.2 63.9 53.5 Average .023 735.2 69.0 59.2 Max .038 737.2 78.9 61.7 Max Hour 15:00 23:00 15:00 16:00 Min .006 732.7 60.0 53.5 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 12-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 12-Oct-2026 22:50:00 23:50:00 0.069 0.07 -.75% 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