Date Printed: 7/10/2026 01:30 Daily Summary Report Site: Clemmons Middle 7/9/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .030 4.7 9.7 5.0 01:00 .027 B 5.1 12.0 6.9 02:00 .019 5.1 11.6 6.5 03:00 .013 5.6 12.3 6.7 04:00 .011 5.7 13.8 8.0 05:00 .005 5.6 13.6 7.9 06:00 .012 5.5 17.2 11.6 07:00 .026 5.2 11.4 6.2 08:00 .038 B 5.8 10.8 4.9 09:00 .045 6.0 12.0 6.0 10:00 .050 6.5 10.9 4.4 11:00 .052 6.8 11.8 5.0 12:00 .052 6.5 10.7 4.1 13:00 .053 6.3 10.3 3.9 14:00 .052 6.4 10.8 4.3 15:00 .053 6.3 12.4 6.1 16:00 .055 6.7 12.1 5.3 17:00 .054 6.3 10.7 4.4 18:00 .051 5.9 9.7 3.8 19:00 .047 B 5.7 9.8 4.0 20:00 .041 6.1 10.5 4.4 21:00 .036 5.9 10.0 4.0 22:00 .034 C 5.8 10.3 4.5 23:00 C 6.2 10.5 4.3 Average .037 5.9 11.4 5.5 Max .055 6.8 17.2 11.6 Max Hour 16:00 11:00 06:00 06:00 Min .005 4.7 9.7 3.8 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 09-Jul-2026 22:50:00 23:20:00 -0.002 0.0 0.00 PREC 09-Jul-2026 22:50:00 23:50:00 0.067 0.07 -3.42% Date Printed: 7/10/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 7/9/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .017 .5 6.1 6.6 .1 01:00 .015 .9 6.5 7.4 .1 02:00 .013 1.6 6.8 8.5 .1 03:00 .010 1.0 5.1 6.1 .1 04:00 .008 .7 4.9 5.6 .1 05:00 .004 3.6 11.0 14.6 .1 06:00 .011 4.5 10.3 14.9 .2 07:00 .025 2.0 7.0 9.1 .1 08:00 .038 1.3 5.2 6.6 .1 09:00 .045 .8 3.1 3.9 .1 10:00 .048 .7 2.6 3.4 .1 11:00 .051 .5 2.4 2.9 .1 12:00 .053 .5 2.3 2.8 .1 13:00 .054 .4 2.1 2.6 .1 14:00 .053 .4 2.3 2.8 .1 15:00 .053 .4 C 2.6 C 3.0 C .1 16:00 .057 C C C .2 17:00 .054 .4 C 3.7 C 4.1 C .2 18:00 .052 .3 3.5 3.8 .1 19:00 .048 .2 5.1 5.3 .1 C 20:00 .047 .2 5.2 5.5 C 21:00 .044 .1 4.8 5.0 .2 C 22:00 .035 C .1 8.2 8.4 .1 23:00 C .2 9.3 9.6 .1 Average .036 .9 5.2 6.1 .1 Max .057 4.5 11.0 14.9 .2 Max Hour 16:00 06:00 05:00 06:00 21:00 Min .004 .1 2.1 2.6 .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 09-Jul-2026 15:46:00 16:11:00 66.2 70 -5.38% GPT-PS 09-Jul-2026 15:46:00 16:18:00 0.5 0.0 .55 GPTZ 09-Jul-2026 15:46:00 16:38:00 214.2 225 -4.76% GPT-PREC 09-Jul-2026 15:46:00 17:08:00 149.3 155 -3.61% NO2 GPT-PREC 09-Jul-2026 15:46:00 17:08:00 65.5 70 -6.36% NO2 Precision NO2_Diff PRECDIFF 09-Jul-2026 17:15:00 17:15:05 64.8 65.551 -1.02% NOx NOx_Auto NO-PREC 09-Jul-2026 15:46:00 16:11:00 66.5 70 -4.88% Ozone O3_Auto ZERO 09-Jul-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 09-Jul-2026 22:50:00 23:50:00 0.068 0.07 -2.45% SO2 SO2_Auto ZERO 09-Jul-2026 19:46:00 20:11:00 0 0.0 .03 SPAN 09-Jul-2026 19:46:00 20:36:00 90.6 90 .7% PREC 09-Jul-2026 19:46:00 21:01:00 40 40 .01% Date Printed: 7/10/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 7/9/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 6.9 16.3 9.0 01:00 7.2 17.0 9.4 02:00 7.4 17.1 9.2 03:00 7.8 20.0 11.6 04:00 8.0 18.1 9.7 05:00 7.9 19.9 11.5 06:00 6.9 17.7 10.2 07:00 6.4 15.0 8.0 08:00 7.0 14.7 6.9 09:00 7.0 13.2 5.4 10:00 7.0 13.6 5.8 11:00 7.4 14.4 6.0 12:00 7.4 13.0 4.7 13:00 6.9 12.4 4.6 14:00 6.6 13.4 5.9 15:00 6.7 12.8 5.3 16:00 7.4 14.1 5.8 17:00 7.2 13.3 5.3 18:00 6.8 12.3 4.8 19:00 6.0 12.9 6.1 20:00 6.3 P 12.8 P 5.9 P 21:00 8.2 13.2 4.4 22:00 7.2 14.7 6.9 23:00 7.2 13.8 6.1 Average 7.1 14.8 7.0 Max 8.2 20.0 11.6 Max Hour 21:00 03:00 03:00 Min 6.0 12.3 4.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 .01% Date Printed: 7/10/2026 01:30 Daily Summary Report Site: Union Cross 7/9/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .022 735.5 74.5 72.2 01:00 .024 735.4 73.3 71.9 02:00 .025 735.5 72.7 71.4 03:00 .023 735.6 72.3 71.2 04:00 .012 735.8 71.9 71.2 05:00 .008 736.2 71.5 71.1 06:00 .014 736.3 73.6 72.1 07:00 .032 736.5 77.6 70.8 08:00 .043 736.3 81.0 70.4 09:00 .048 736.2 84.2 70.8 10:00 .052 736.2 86.1 70.3 11:00 .055 736.2 87.1 69.9 12:00 .057 735.9 88.2 70.1 13:00 .057 735.4 89.4 70.5 14:00 .057 734.8 91.1 70.9 15:00 .057 734.5 89.6 70.7 16:00 .058 734.2 88.9 71.3 17:00 .057 734.2 89.7 71.3 18:00 .053 734.3 89.1 70.9 19:00 .050 734.6 87.6 68.9 20:00 .046 735.0 84.9 68.1 21:00 .039 735.3 82.1 67.7 22:00 .036 C 735.3 79.6 66.9 23:00 C 735.5 77.1 66.5 Average .040 735.4 81.7 70.2 Max .058 736.5 91.1 72.2 Max Hour 16:00 07:00 14:00 00:00 Min .008 734.2 71.5 66.5 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 09-Jul-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 09-Jul-2026 22:50:00 23:50:00 0.07 0.07 .27% 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