Date Printed: 7/7/2026 01:30 Daily Summary Report Site: Clemmons Middle 7/6/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .002 10.0 23.8 13.8 01:00 .002 10.2 25.2 15.0 02:00 .003 10.6 27.9 17.2 03:00 .002 11.1 30.4 19.2 04:00 .000 11.0 31.7 20.7 05:00 .000 10.6 29.4 18.7 06:00 .003 9.4 26.1 16.7 07:00 .013 9.4 19.5 10.1 08:00 .025 9.0 18.5 9.5 09:00 .042 9.1 15.3 6.1 10:00 .047 9.3 14.8 5.5 11:00 .048 B 9.1 14.6 5.4 12:00 .054 9.5 17.1 7.6 13:00 .058 10.1 16.1 5.9 14:00 .056 10.0 17.5 7.5 15:00 .051 9.0 20.1 11.1 16:00 .054 4.8 27.6 22.6 17:00 .059 4.4 9.6 5.1 18:00 .052 5.5 10.9 5.4 19:00 .040 6.1 11.6 5.5 20:00 .048 6.3 14.4 8.1 21:00 .044 5.6 12.7 7.0 22:00 .035 C 7.5 17.5 9.9 23:00 C 7.6 16.8 9.2 Average .032 8.5 19.5 10.9 Max .059 11.1 31.7 22.6 Max Hour 17:00 03:00 04:00 16:00 Min .000 4.4 9.6 5.1 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 06-Jul-2026 22:50:00 23:20:00 -0.002 0.0 0.00 PREC 06-Jul-2026 22:50:00 23:50:00 0.067 0.07 -3.9% Date Printed: 7/7/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 7/6/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .012 1.1 9.5 10.7 .1 01:00 .013 .9 8.1 9.0 .1 02:00 .011 1.1 9.6 10.8 .1 03:00 .014 2.5 8.1 10.6 .1 04:00 .008 1.6 8.2 9.8 .1 05:00 .005 2.8 8.1 10.9 .1 06:00 .009 6.0 10.3 16.3 .2 07:00 .022 3.5 8.8 12.4 .4 08:00 .041 1.2 5.6 6.9 .4 09:00 .052 1.0 6.5 7.6 .4 10:00 .064 .7 5.8 6.5 .5 11:00 .065 .5 4.3 4.8 .3 12:00 .062 .5 3.4 3.9 .2 13:00 .053 .7 2.9 3.6 .2 14:00 .054 .7 3.0 3.8 .2 15:00 .053 .5 C 3.8 C 4.4 C .2 16:00 .053 C C C .3 17:00 .054 .8 C 7.3 C 8.2 C .2 18:00 .052 .3 6.5 6.9 .2 19:00 .036 .8 13.4 14.3 .2 C 20:00 .039 .5 8.6 9.2 C 21:00 .045 .5 4.9 5.4 .1 C 22:00 .037 C .4 4.6 5.0 .1 23:00 C .5 6.0 6.6 .1 Average .037 1.2 6.8 8.1 .2 Max .065 6.0 13.4 16.3 .5 Max Hour 11:00 06:00 19:00 06:00 10:00 Min .005 .3 2.9 3.6 .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 06-Jul-2026 15:46:00 16:11:00 66.5 70 -4.86% GPT-PS 06-Jul-2026 15:46:00 16:18:00 0.5 0.0 .57 GPTZ 06-Jul-2026 15:46:00 16:38:00 214.7 225 -4.58% GPT-PREC 06-Jul-2026 15:46:00 17:08:00 149.4 155 -3.59% NO2 GPT-PREC 06-Jul-2026 15:46:00 17:08:00 66.9 70 -4.31% NO2 Precision NO2_Diff PRECDIFF 06-Jul-2026 17:15:00 17:15:05 65.2 66.986 -2.56% NOx NOx_Auto NO-PREC 06-Jul-2026 15:46:00 16:11:00 69.6 70 -.47% Ozone O3_Auto ZERO 06-Jul-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 06-Jul-2026 22:50:00 23:50:00 0.067 0.07 -3.76% SO2 SO2_Auto ZERO 06-Jul-2026 19:46:00 20:11:00 0 0.0 .03 SPAN 06-Jul-2026 19:46:00 20:36:00 90.8 90 .9% PREC 06-Jul-2026 19:46:00 21:01:00 40.2 40 .54% Date Printed: 7/7/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 7/6/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 12.6 28.8 15.4 01:00 15.5 35.4 19.1 02:00 14.7 33.5 18.0 03:00 13.3 30.8 16.8 04:00 13.2 31.3 17.4 05:00 13.9 35.1 20.5 06:00 12.3 27.2 14.1 07:00 11.5 22.0 9.6 08:00 11.0 18.5 6.6 09:00 11.9 20.0 7.1 10:00 12.6 22.5 8.8 11:00 12.2 22.3 8.7 12:00 12.1 20.0 6.7 13:00 10.7 18.4 6.5 14:00 10.9 19.1 6.9 15:00 11.6 19.2 6.4 16:00 8.1 49.1 39.0 17:00 6.8 43.5 34.8 18:00 6.0 25.8 18.7 19:00 6.3 28.4 20.9 20:00 9.0 22.1 12.2 21:00 8.7 21.6 12.1 22:00 12.3 23.9 10.9 23:00 11.2 18.8 7.1 Average 11.1 26.5 14.3 Max 15.5 49.1 39.0 Max Hour 01:00 16:00 16:00 Min 6.0 18.4 6.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 .54% Date Printed: 7/7/2026 01:30 Daily Summary Report Site: Union Cross 7/6/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .007 734.6 71.3 71.1 01:00 .009 734.7 71.1 70.9 02:00 .011 734.6 70.9 70.6 03:00 .008 734.7 70.6 70.2 04:00 .004 735.1 70.4 70.2 05:00 .003 735.5 70.3 70.3 06:00 .010 735.8 72.1 71.7 07:00 .022 736.1 75.2 71.9 08:00 .035 736.3 79.2 72.4 09:00 .048 736.3 82.3 72.8 10:00 .056 736.2 84.1 72.5 11:00 .053 736.1 86.5 73.1 12:00 .055 735.5 88.6 72.6 13:00 .059 735.1 90.3 73.0 14:00 .064 734.6 91.4 73.0 15:00 .059 734.1 88.0 72.2 16:00 .052 734.6 74.1 68.4 17:00 .047 734.5 78.4 71.4 18:00 .032 734.4 79.3 73.1 19:00 .020 734.9 77.8 74.0 20:00 .036 735.4 78.1 72.5 21:00 .041 736.1 77.0 69.8 22:00 .039 C 736.0 73.2 70.5 23:00 C 735.8 72.8 71.6 Average .033 735.2 78.0 71.6 Max .064 736.3 91.4 74.0 Max Hour 14:00 09:00 14:00 19:00 Min .003 734.1 70.3 68.4 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 06-Jul-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 06-Jul-2026 22:50:00 23:50:00 0.069 0.07 -.41% 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