Date Printed: 6/4/2026 01:30 Daily Summary Report Site: Clemmons Middle 6/3/2026 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .025 4.8 10.2 5.3 01:00 .019 4.8 10.6 5.8 02:00 .015 5.0 11.9 6.9 03:00 .011 5.3 12.7 7.4 04:00 .007 B 5.4 13.0 7.6 05:00 .005 5.6 11.0 5.4 06:00 .007 5.6 12.0 6.4 07:00 .015 5.0 11.9 6.8 08:00 .031 4.6 11.6 7.0 09:00 .041 4.3 10.7 6.3 10:00 .048 3.9 9.7 5.8 11:00 .050 3.9 10.5 6.5 12:00 .052 3.6 9.8 6.2 13:00 .054 B 9.5 14.8 5.3 14:00 .056 17.0 24.5 7.5 15:00 .052 7.2 13.8 6.6 16:00 .053 4.6 10.6 5.9 17:00 .053 4.4 10.9 6.5 18:00 .053 4.5 12.6 8.0 19:00 .047 4.6 10.4 5.7 20:00 .041 5.2 12.9 7.6 21:00 .029 B 5.5 15.0 9.5 22:00 .025 C 5.8 11.6 5.7 23:00 C 6.8 12.7 5.8 Average .034 5.7 12.3 6.5 Max .056 17.0 24.5 9.5 Max Hour 14:00 14:00 14:00 21:00 Min .005 3.6 9.7 5.3 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 03-Jun-2026 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 03-Jun-2026 22:50:00 23:50:00 0.068 0.07 -1.75% Date Printed: 6/4/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 6/3/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .034 .1 2.9 3.1 -.5 01:00 .032 .1 2.4 2.5 -.6 02:00 .031 .0 1.9 2.0 -.6 03:00 .028 .1 2.2 2.4 -.6 04:00 .022 .1 3.2 3.3 -.6 05:00 .013 .6 8.0 8.6 -.5 06:00 .010 5.4 11.6 17.1 -.5 07:00 .025 3.2 8.5 11.8 -.4 08:00 .037 1.6 5.4 7.0 -.3 09:00 .049 .3 1.8 2.2 -.5 10:00 .050 .1 1.2 1.4 -.5 11:00 .053 .2 1.6 1.8 -.5 12:00 .055 .4 2.5 2.9 -.4 D 13:00 .060 .3 2.9 3.3 D 14:00 .056 .1 1.9 2.1 -.4 D 15:00 .054 .3 C 2.2 C 2.6 C -.4 16:00 .056 C C C -.4 17:00 .056 .1 C 2.0 C 2.1 C -.5 18:00 .052 .2 4.0 4.2 -.3 19:00 .047 .0 4.5 4.6 -.4 C 20:00 .039 .9 9.0 9.9 C 21:00 .031 .1 9.3 9.5 -.3 C 22:00 .025 C .1 10.8 11.0 -.5 23:00 C .2 11.2 11.5 -.5 Average .039 .6 4.8 5.5 -.4 Max .060 5.4 11.6 17.1 -.3 Max Hour 13:00 06:00 06:00 06:00 21:00 Min .010 .0 1.2 1.4 -.6 Count 23 23 23 23 22 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 03-Jun-2026 15:46:00 16:11:00 66.4 70 -5.04% GPT-PS 03-Jun-2026 15:46:00 16:18:00 0.5 0.0 .53 GPTZ 03-Jun-2026 15:46:00 16:38:00 214.1 225 -4.83% GPT-PREC 03-Jun-2026 15:46:00 17:08:00 149.3 155 -3.67% NO2 GPT-PREC 03-Jun-2026 15:46:00 17:08:00 65.2 70 -6.79% NO2 Precision NO2_Diff PRECDIFF 03-Jun-2026 17:15:00 17:15:05 64.8 65.248 -.66% NOx NOx_Auto NO-PREC 03-Jun-2026 15:46:00 16:11:00 66.4 70 -5.07% Ozone O3_Auto ZERO 03-Jun-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 03-Jun-2026 22:50:00 23:50:00 0.067 0.07 -4.06% SO2 SO2_Auto ZERO 03-Jun-2026 19:46:00 20:11:00 -0.6 0.0 -.67 SPAN 03-Jun-2026 19:46:00 20:36:00 87.8 90 -2.36% PREC 03-Jun-2026 19:46:00 21:01:00 38.4 40 -3.91% Date Printed: 6/4/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 6/3/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 5.2 9.8 4.7 01:00 4.9 10.2 5.4 02:00 4.7 8.9 4.3 03:00 4.9 9.1 4.3 04:00 5.0 9.4 4.6 05:00 5.9 14.2 8.6 06:00 7.4 18.7 11.4 07:00 6.3 20.9 14.5 08:00 6.7 31.7 24.6 09:00 4.2 14.7 10.2 10:00 B B B 11:00 B B B 12:00 7.0 13.9 6.5 13:00 22.8 32.4 8.6 14:00 15.6 23.8 7.5 15:00 5.7 14.7 8.5 16:00 4.6 11.9 6.9 17:00 4.7 14.2 9.1 18:00 4.6 12.4 7.4 19:00 4.8 13.3 8.3 20:00 5.2 13.0 7.6 21:00 5.8 14.0 8.1 22:00 6.3 17.1 10.8 23:00 7.1 16.4 9.4 Average 6.7 15.6 8.6 Max 22.8 32.4 24.6 Max Hour 13:00 13:00 08:00 Min 4.2 8.9 4.3 Count 22 22 22 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.91% Date Printed: 6/4/2026 01:30 Daily Summary Report Site: Union Cross 6/3/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .023 742.5 57.3 48.0 01:00 .025 742.5 55.8 48.4 02:00 .022 742.6 54.2 49.4 03:00 .018 742.5 52.7 49.8 04:00 .014 742.6 52.0 49.6 05:00 .008 742.9 51.4 49.1 06:00 .008 743.3 55.6 49.9 07:00 .024 D 743.5 61.4 50.1 08:00 D 743.9 66.4 49.7 09:00 .049 744.0 69.7 47.2 10:00 .051 743.9 71.3 46.6 11:00 .049 743.5 72.9 47.2 12:00 .055 743.0 74.3 48.4 13:00 .055 742.6 75.3 49.6 14:00 .056 742.2 76.5 50.6 15:00 .056 741.8 77.1 51.6 16:00 .056 741.6 77.5 51.9 17:00 .056 741.3 77.3 52.0 18:00 .054 741.3 76.5 51.9 19:00 .045 741.4 73.4 50.2 20:00 .040 741.3 67.6 47.8 21:00 .036 741.6 64.4 46.7 22:00 .031 C 741.8 62.0 46.6 23:00 C 742.1 60.6 47.0 Average .037 742.4 65.9 49.1 Max .056 744.0 77.5 52.0 Max Hour 17:00 09:00 16:00 17:00 Min .008 741.3 51.4 46.6 Count 22 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 03-Jun-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 03-Jun-2026 22:50:00 23:50:00 0.07 0.07 1.5% 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