Date Printed: 10/31/2026 01:30 Daily Summary Report Site: Clemmons Middle 10/30/2026 Interval: 001h O3 PM2.5 PM10 LC PM Coarse Time ppm ug/m3 ug/m3 ug/m3 00:00 .002 11.3 23.5 12.1 01:00 .002 10.5 19.5 9.0 02:00 .002 10.4 17.4 7.0 03:00 .006 10.7 17.1 6.3 04:00 .004 10.8 18.8 8.0 05:00 .003 10.6 18.1 7.5 06:00 .002 11.9 32.5 20.5 07:00 .002 12.8 51.7 38.8 08:00 .008 10.7 30.6 19.9 09:00 .022 B 9.6 17.7 8.1 10:00 .042 9.1 16.8 7.7 11:00 .055 9.2 17.6 8.3 12:00 .058 9.2 19.9 10.7 13:00 .059 9.1 17.8 8.7 14:00 .061 9.7 21.7 11.9 15:00 .059 8.1 19.0 10.8 16:00 .053 8.0 21.5 13.5 17:00 .038 8.4 20.9 12.5 18:00 .036 7.3 18.0 10.6 19:00 .032 B 7.8 15.5 7.7 20:00 .030 8.5 17.6 9.1 21:00 .022 8.7 17.0 8.3 22:00 .020 C 10.1 18.3 8.2 23:00 C 9.9 17.1 7.1 Average .026 9.6 21.0 11.3 Max .061 12.8 51.7 38.8 Max Hour 14:00 07:00 07:00 07:00 Min .002 7.3 15.5 6.3 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error O3 O3_Auto ZERO 30-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 30-Oct-2026 22:50:00 23:50:00 0.069 0.069 .05% Date Printed: 10/31/2026 01:30 Daily Summary Report Site: Hattie Avenue (A) 10/30/2026 Interval: 001h Ozone NO NO2 NOx SO2 Time ppm ppb ppb ppb ppb 00:00 .002 8.0 19.4 27.4 .3 01:00 .003 4.8 16.8 21.7 .2 02:00 .005 2.1 15.5 17.6 .2 03:00 .020 .3 7.6 8.0 .1 04:00 .013 .3 8.9 9.2 .1 05:00 .009 .8 11.3 12.1 .1 06:00 .003 7.0 15.9 22.9 .2 07:00 .004 27.3 13.2 40.6 .5 08:00 .012 11.8 12.2 24.1 .3 09:00 .037 1.8 7.6 9.4 .2 10:00 .047 1.1 5.1 6.2 .3 11:00 .055 .5 3.5 4.0 .3 12:00 .060 .3 3.1 3.6 .3 13:00 .059 .2 2.7 2.9 .4 14:00 .061 .1 2.4 2.5 .4 15:00 .059 .1 C 2.6 C 2.8 C .4 16:00 .057 C C C .4 17:00 .051 .1 C 5.1 C 5.2 C .2 18:00 .048 .0 6.5 6.5 .2 19:00 .050 .0 3.9 3.9 .2 C 20:00 .045 .0 6.3 6.4 C 21:00 .043 .0 6.3 6.3 .2 C 22:00 .038 C .0 6.8 6.9 .2 23:00 C .0 5.6 5.7 .1 Average .033 2.8 8.1 11.1 .2 Max .061 27.3 19.4 40.6 .5 Max Hour 14:00 07:00 00:00 07:00 07:00 Min .002 .0 2.4 2.5 .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 30-Oct-2026 15:46:00 16:11:00 68.9 70 -1.52% GPT-PS 30-Oct-2026 15:46:00 16:18:00 0.6 0.0 .62 GPTZ 30-Oct-2026 15:46:00 16:38:00 223.3 225 -.73% GPT-PREC 30-Oct-2026 15:46:00 17:08:00 155.7 155 .52% NO2 GPT-PREC 30-Oct-2026 15:46:00 17:08:00 68.1 70 -2.7% NO2 Precision NO2_Diff PRECDIFF 30-Oct-2026 17:15:00 17:15:05 67.5 68.11 -.82% NOx NOx_Auto NO-PREC 30-Oct-2026 15:46:00 16:11:00 68.9 70 -1.52% Ozone O3_Auto ZERO 30-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 30-Oct-2026 22:50:00 23:50:00 0.068 0.07 -2.31% SO2 SO2_Auto ZERO 30-Oct-2026 19:46:00 20:11:00 0 0.0 .08 SPAN 30-Oct-2026 19:46:00 20:36:00 86.4 90 -3.92% PREC 30-Oct-2026 19:46:00 21:01:00 38.1 40 -4.58% Date Printed: 10/31/2026 01:30 Daily Summary Report Site: Hattie Avenue (B) 10/30/2026 Interval: 001h PM2.5 PM10 STP PM Coarse Time ug/m3 ug/m3 ug/m3 00:00 12.1 19.4 7.7 01:00 12.7 19.8 7.5 02:00 12.2 19.2 7.3 03:00 12.0 19.6 7.9 04:00 11.2 18.0 7.1 05:00 11.0 17.6 7.0 06:00 11.6 18.0 6.8 07:00 12.0 20.8 9.3 08:00 12.9 30.2 17.2 09:00 9.1 23.3 13.8 10:00 8.9 23.0 13.5 11:00 9.1 23.2 13.4 12:00 9.0 21.4 11.8 13:00 9.4 27.8 17.4 14:00 8.8 21.8 12.1 15:00 8.7 19.4 10.0 16:00 8.9 21.1 11.6 17:00 6.4 17.8 11.0 18:00 5.7 16.2 10.3 19:00 5.9 13.6 7.6 20:00 17.2 41.6 24.4 21:00 5.0 10.4 5.4 22:00 5.7 12.9 7.3 23:00 7.1 14.4 7.5 Average 9.6 20.4 10.6 Max 17.2 41.6 24.4 Max Hour 20:00 20:00 20:00 Min 5.0 10.4 5.4 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -4.58% Date Printed: 10/31/2026 01:30 Daily Summary Report Site: Union Cross 10/30/2026 Interval: 001h Ozone Barometric Pres. Temperature (°F) Dew Point (°F) Time ppm mmHg DegF DegF 00:00 .015 740.5 55.8 52.1 01:00 .012 740.3 55.1 52.0 02:00 .009 740.1 53.7 51.8 03:00 .009 740.5 52.3 50.6 04:00 .007 740.4 52.5 50.1 05:00 .005 740.5 51.3 50.0 06:00 .003 740.7 50.3 49.5 07:00 .004 741.1 51.0 49.4 08:00 .016 741.6 58.6 49.1 09:00 .030 741.4 65.6 50.7 10:00 .048 741.4 70.7 50.5 11:00 .054 741.2 74.5 52.0 12:00 .059 740.7 76.4 53.0 13:00 .063 740.3 77.5 54.5 14:00 .064 740.1 78.8 56.1 15:00 .060 740.1 78.8 56.8 16:00 .056 740.5 78.7 57.2 17:00 .049 740.8 75.3 52.8 18:00 .045 741.3 72.0 48.6 19:00 .044 742.0 70.2 46.4 20:00 .041 742.3 67.1 44.5 21:00 .035 742.7 64.2 43.2 22:00 .036 C 743.2 61.8 42.3 23:00 C 743.1 61.2 41.3 Average .033 741.1 64.7 50.1 Max .064 743.2 78.8 57.2 Max Hour 14:00 22:00 15:00 16:00 Min .003 740.1 50.3 41.3 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 30-Oct-2026 22:50:00 23:20:00 0 0.0 0.00 PREC 30-Oct-2026 22:50:00 23:50:00 0.07 0.07 .84% 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