ALUTRINT: Attachment 2 – ADM Updated Results

ALUTRINT: Attachment 2 – ADM Updated

Results

February 2007

Table A. Ambient Air Quality Standards

Pollutant Averaging Period Limit Value (g/m3) Source1,2

10 minutes 500 Trinidad Second Schedule

3 hours 13003,4 U.S. EPA NAAQS

24 hours 50 WHO guidelines for developing Countries

125 Trinidad Second Schedule 24 hours

3654 U.S. EPA NAAQS

50 Trinidad Second Schedule

SO2

Annual 805 U.S. EPA NAAQS

24 hours 200 Trinidad Second Schedule

40 Trinidad Second Schedule NOx Annual

1005,6 U.S. EPA NAAQS

1 hour 600 Health limit

1.0 Trinidad Second Schedule 24 hours

2.9 ALUTRINT Proposed Guidelines

30 days 0.84 ALUTRINT Proposed Guidelines

90 days 0.4 Trinidad Second Schedule

HF

Annual 0.4 ALUTRINT Proposed Guidelines

50 WHO guidelines

75 Trinidad Second Schedule 24 hours

1504 U.S. EPA NAAQS

50 Trinidad Second Schedule

PM10

Annual 505 U.S.EPA NAAQS

TSP 24 hours 150 Trinidad Second Schedule

BaP Annual 0.1 – 1.0 ng/m3 Trinidad Second Schedule

15 minutes 100,000 Trinidad Second Schedule

30 minutes 60,000 Trinidad Second Schedule

1 hour 30,000 Trinidad Second Schedule CO

8 hours 10,000 Trinidad Second Schedule

1 Trinidad Second Schedule received in the fax sent from Philip Julien to Irene Lee dated October 20, 2005.

Table 8.1. Point Source Parameters – Future Potential Emissions (Scenario 16)

Source Description

UTM3 Coord.

E (km)

UTM3 Coord.

N (km)

Stack

Ht. (m)

Base

Elev.

(m)

Stack

Diam. (m)

Exit

Veloc. (m/s)

Exit Temp.

(K)

HF Emiss. Rate (g/s)

PF Emiss. Rate (g/s)

SO2 Emiss. Rate (g/s)

TSP Emiss. Rate (g/s)

PM10 Emiss. Rate (g/s)

PAH Emiss. Rate (g/s)

NOx Emiss. Rate (g/s)

BaP Emiss. Rate (g/s)

CO Emiss. Rate (g/s)

VOC Emiss. Rate (g/s)

Fume Treatment #11 651.0785 130.0644 60.0 17 4.5 16.80 363 0.1 0.271 31.20 1.97 0.65 0.00045 --7 0.54E-055 71.354 --7

Fume Treatment #2 and Anode Butt Cooling1

651.3168 1129.9267 60.0 17 4.5 16.80 363 0.1 0.271 31.20 1.97 0.65 0.00045 --7 0.54E-055 71.354 --7

Anode Bake Furnace/ Alumina Scrubber1

650.8907 1129.8984 60.0 17 1.5 15.00 368 0.00874 0.01075 2.85 0.195 0.0615 0.039 --7 0.005 --7 --7

Green Mill/ Coke Scrubber1 651.0309 1129.8877 53.06 17 0.95 20.005 3536 --7 --7 --7 0.08 0.085 0.017 0.006 --7 --7 --7

Rod Mill Stack/ Emission Point 12

650.746 1130.537 16.1 17 1.7 0.84 420 1.0E-09 --7 0.002 0.02 0.0002 --7 0.264 --7 --7 --7


650.740 1130.526 16.1 17 1.7 0.84 420 1.0E-09 --7 0.002 0.02 0.0002 --7 0.264 --7 --7 --7


650.733 1130.514 16.1 17 1.7 0.84 420 1.0E-09 --7 0.002 0.02 0.0002 --7 0.264 --7 --7 --7


650.743 1130.517 16.1 17 1.7 0.73 420 1.0E-09 --7 0.002 0.017 0.0002 --7 0.229 --7 --7 --7


650.728 1130.502 16.0 17 1.1 0.83 420 1.0E-09 --7 0.001 0.009 0.0009 --7 0.115 --7 --7 --7


650.724 1130.495 16.0 17 1.1 0.83 420 1.0E-09 --7 0.001 0.009 0.0009 --7 0.115 --7 --7 --7


650.738 1130.496 16.0 17 1.1 0.5 420 1.0E-09 --7 0.0007 0.005 0.0005 --7 0.069 --7 --7 --7


650.746 1130.491 16.0 17 1.1 0.5 420 1.0E-09 --7 0.0007 0.005 0.0005 --7 0.069 --7 --7 --7


650.742 1130.484 16.0 17 1.1 0.5 420 1.0E-09 --7 0.0007 0.005 0.0005 --7 0.069 --7 --7 --7

SCENARIO 16, a review of Scenario 12b

1 Emissions data and stack parameters are from spreadsheet “Aluminium Complex - PointSourceParametersTemplate - August 15 2005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 15, 2005. Note: New HF Emission rates for Fume stacks are provided in the e-mail from Philip Julien to Joe Scire dated November 30, 2006 (0.1 g/s in lieu of 0.0874 g/s used in the previous Scenario 12b).

2 Emissions data and stack parameters are from spreadsheet “rev 2 - Aluminium Complex - PointSourceParametersTemplate - August 17 2005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 17, 2005.

3 UTM Coordinates obtained from “rev 2 - Aluminium Complex - PointSourceParametersTemplate - August 17 2005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 17, 2005, except for the two Fume stacks, anode bake furnace and Green Mill bake furnace are from the excel spreadsheet “CMEC Update – Air Dispersion Model Template – Aluminum Complex – Nov 30 2006.xls” sent to Joe Scire on November 30, 2006.

4 Based on an emission rate of 330 kg CO per ton of aluminum produced transmitted in the email from Philip Julien to Joe Scire dated November 22, 2005 with a smelter capacity of 125,000 tons of aluminum per year and a 90% - 10% respective split between the Fume Stacks and Potroom Roof Vents. The New CO Emission rates for Fume Stacks are provided in the e-mail from Philip Julien to Joe Scire on November 27, 2006 (40kg/t in lieu of 330 kg/t used previously).

5 Emissions data and stack parameters are from spreadsheet “rev 1 - Aluminium Complex - Building Heights and Emission Estimates - August 172005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 17, 2005.

6 Emissions data is from the email from Philip Julien to Joe Scire dated November 22, 20057 No emissions data available

Table 1. (cont’d). Point Source Parameters and Emissions Data (Scenario 16)

Source Description

UTM3 Coord.

E (km)

UTM3 Coord.

N (km)

Stack

Ht. (m)

Base

Elev.

(m)

Stack

Diam. (m)

Exit

Veloc. (m/s)

Exit Temp.

(K)


PF Emiss. Rate (g/s)



PM10 Emiss. Rate (g/s)


NOx Emiss. Rate (g/s)




Continuous Bar Stack/ Emission Point 12

650.770 1130.562 16.0 17 1.1 0.66 420 1.0E-09 --7 0.001 0.007 0.0007 --7 0.092 --7 --7 --7


650.776 1130.559 16.0 17 1.1 0.52 420 1.0E-09 --7 0.0008 0.005 0.0005 --7 0.072 --7 --7 --7


650.762 1130.550 16.0 17 1.1 0.66 420 1.0E-09 --7 0.001 0.007 0.0007 --7 0.092 --7 --7 --7


650.769 1130.546 16.0 17 1.1 0.52 420 1.0E-09 --7 0.0008 0.005 0.0005 --7 0.072 --7 --7 --7


650.855 1130.497 13.6 17 0.55 0.48 350 1.0E-09 --7 0.0004 0.003 0.0003 --7 0.037 --7 --7 --7

1 Emissions data and stack parameters are from spreadsheet “Aluminium Complex - PointSourceParametersTemplate - August 15 2005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 15, 2005. Note: New HF Emission rates for Fume stacks are provided in the e-mail from Philip Julien to Joe Scire dated November 30, 2006 (0.1 g/s in lieu of 0.0874 g/s used in the previous Scenario 12b).

2 Emissions data and stack parameters are from spreadsheet “rev 2 - Aluminium Complex - PointSourceParametersTemplate - August 17 2005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 17, 2005.

3 UTM Coordinates obtained from “rev 2 - Aluminium Complex - PointSourceParametersTemplate - August 17 2005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 17, 2005, except for the two Fume stacks, anode bake furnace and Green Mill bake furnace are from the excel spreadsheet “CMEC Update – Air Dispersion Model Template – Aluminum Complex – Nov 30 2006.xls” sent to Joe Scire on November 30, 2006.

4 Based on an emission rate of 330 kg CO per ton of aluminum produced transmitted in the email from Philip Julien to Joe Scire dated November 22, 2005 with a smelter capacity of 125,000 tons of aluminum per year and a 90% - 10% respective split between the Fume Stacks and Potroom Roof Vents. The New CO Emission rates for Fume Stacks are provided in the e-mail from Philip Julien to Joe Scire on November 27, 2006 (40kg/t in lieu of 330 kg/t used previously).

5 Emissions data and stack parameters are from spreadsheet “rev 1 - Aluminium Complex - Building Heights and Emission Estimates - August 172005.xls” transmitted in the email from Philip Julien to Joe Scire dated August 17, 2005.

6 Emissions data is from the email from Philip Julien to Joe Scire dated November 22, 20057 No emissions data available

Table 2. Line Source (Potroom) Future Potential1 Emissions Data (Scenario 16, Scenario12b, 15 review)

Source Description

UTM2 Coord.

Begin. E (km)

UTM2 Coord.

Begin. N (km)

UTM2 Coord.

Ending E (km)

UTM2 Coord.

Ending N (km)

Exit Ht. (m)

Base Elev

. (m)

Exit Temp.

(K)


PF

Emiss. Rate (g/s)



PM10

Emiss. Rate (g/s)


NOx

Emiss. Rate (g/s)




Potroom Roof Vent #1

651.0168 1130.0607 651.5267 1129.7662 19.5 17 319.05 0.55 0.28 0.8 1.86 0.2 0.001 --4 0.8E-05 7.933 --4

Potroom Roof Vent #2

651.0553 1130.1274 651.5651 1129.8330 19.5 17 319.05 0.55 0.28 0.8 1.86 0.2 0.001 --4 0.8E-05 7.933 --4

Note: In blue, changes from previous scenario 12b 1 Emissions data and source parameters are from spreadsheet “rev 1 - Aluminium Complex - Building Heights and Emission Estimates - August 172005.xls” transmitted in the email from Philip Julien to

Joe Scire dated August 17, 2005. HF emission was reevaluated from 0.76 g/s to 0.60 g/s (see e-mail from Philip Julien to Joe Scire on November 27, 2006, “Request for Finalisation of Alutrint Air Dispersion Model”). Itwas already used in Scenario 12. Then, HF emission rate reevaluate from 0.60g/s to 0.55g/s (PF change from 0.38g/s to 0.28g/s) because of the increase of the hooding efficiency of the potrooms (E-mail from Joe Scire January 24, 2007).

2 UTM Coordinates obtained from “emission location master (by nec).dwg” transmitted on CD-ROM to Joe Scire August 16, 2005. (Datum = NAP). The new location of the line were estimated from information provided in “CMEC Update – Air Dispersion Model Template – Aluminum Complex – Nov 30, 2006xls” and “generallayout2-11[1][1][1]/08.dwg”.

3 Assuming an emission rate of 330 kg CO per ton of aluminum produced with a smelter capacity of 125,000 tons of aluminum per year and a 90% - 10% respective split between the Fume Stacks and Potroom Roof Vents. The New CO Emission rates for lines as well as the fume stacks are provided in the e-mail from Philip Julien to Joe Scire on November 27, 2006 (40kg/t in lieu of 330 kg/t used previously), 10% emitted by potroom roof vents.

4 No emissions data available.

Potroom dimensions: Building length = 588.7 m

Building height (HB) = 21 m

Building width (WB) = 27 m

Line source (roof monitor) length (L) = 573 m (used in “airflwcalculation.doc”)

Line source (roof monitor) width (WM) = 2.7 m

Separation between buildings (δx)= 50 m

T (Ts-Ta) = 13.4C or 15.11C

Average Air Temperature (Ta) = 28C = 301 K Exit Temperature (Ts) = 41.4C or 43.11C

Table 3. Point Source Parameters added to Scenario 16 for Cumulative Analysis

Source Description

UTM1 Coord.

E (km)

UTM1 Coord.

N (km)

Stack1

Ht. (m)

Base3

Elev.

(m)

Stack1

Diam.

(m)

Exit1

Veloc. (m/s)

Exit1

Temp. (K)

HF2 (g/s)

PF2 (g/s)

SO2 2 (g/s)

TSP2 (g/s)

PM10 2 (g/s)

PAH 2 (g/s)

NOx 2 (g/s)

BaP 2 (g/s)

CO2 (g/s)

VOC2 (g/s)

NH31

(g/s)

Power Plant

Stk. #14.5 650.3394 1129.6856 42.7 17.0 6.1 13.09 361.7 --6 --6 0.09 --6 0.97 --6 18.52 --6 11.38 0.41 --6

Power Plant

Stk.. #24.5 650.3059 1129.6856 42.7 17.0 6.1 13.09 361.7 --6 --6 0.09 --6 0.97 --6 18.52 --6 11.38 0.41 --6

Power Plant

Stk.. #34.5 650.2724 1129.6856 42.7 17.0 6.1 13.09 361.7 -6 -6 0.09 -6 0.97 -6 18.52 -6 11.38 0.41 --6

Power Plant

Stk. #44.5 650.2389 1129.6856 42.7 17.0 6.1 13.09 361.7 --6 --6 0.09 --6 0.97 --6 18.52 --6 11.38 0.41 --6

Site A 1 649.4151 1128.6952 103.94 7.5 0.06 20.0 1,272.59 --6 --6 1.26E-05 --6 --6 --6 3.53E-04 --6 3.02E0-03 1.26E-06 --6

Site A 2 649.3058 1128.736 41.15 7.5 3.94 9.66 443.15 --6 --6 0.166 --6 --6 --6 8.84 --6 - 0.0832 --6

Site A 3 649.1462 1128.7539 12.19 7.5 0.06 20.0 1,272.59 --6 --6 1.26E-05 --6 --6 --6 3.53E-04 --6 3.02E0-3 1.26E-06 --6

Site A 4 649.5717 1128.7222 50.29 7.5 1.42 35.05 420.37 --6 --6 --6 --6 --6 --6 1.86 --6 --6 --6 --6

Site A 5 649.5598 1128.6635 30.48 7.5 0 .7 9.14 343.15 --6 --6 --6 --6 --6 --6 --6 --6 --6 --6 0.0290

Site A 6 649.3325 1128.7411 36.58 7.5 2.0 8.6 453.15 -6 -6 -6 -6 --6 -6 1.88 -6 1.54 -6 ---6

Site A 7 649.3675 1128.6990 3.05 7.5 0.001 0.001 100.0 --6 --6 --6 --6 --6 --6 --6 --6 --6 --6 0.204

Site A 8 649.5406 1128.6639 3.05 7.5 0.001 0.001 100.0 --6 --6 --6 --6 --6 --6 --6 --6 --6 --6 0.126

Site A 9 649.3361 1128.7240 3.05 7.5 0.001 0.001 100.0 --6 --6 --6 --6 --6 --6 --6 --6 --6 --6 0.0315

Site A 10 649.5707 1128.7123 3.05 7.5 0.001 0.001 100.0 --6 --6 --6 --6 --6 --6 --6 --6 --6 --6 0.0126

Site A 11 649.1892 1128.7589 3.05 7.5 0.001 0.001 100.0 --6 --6 --6 --6 --6 --6 --6 --6 --6 --6 0.219

1 UTM Coordinates (Datum = NAP) and source parameters from Table 2-1 in “Modeling Report.pdf” transmitted in the email from Philip Julien to Joe Scire dated October 17, 2005.

2 Emissions information from Table 2-2 in “Modeling Report.pdf” transmitted in the email from Philip Julien to Joe Scire dated October 17, 2005.3 Base elevation from Section 2.3 Terrain in “Modeling Report.pdf” transmitted in the email from Philip Julien to Joe Scire dated October 17, 2005.4 Emissions data and stack parameters for Power Plant Stacks #1-4 are from the email from Philip Julien to Joe Scire dated November 30, 20065 UTM Coordinates obtained from “EMISSION CONTROL MASTER.JPG” transmitted in the email from Philip Julien to Joe Scire dated October 10, 20056 Emission not provided

Table 9.4. Background Ambient Air Concentrations

Species

Averaging Period

Maximum 24hr Average Ambient Air

Concentration 1

(g/m3)

Scaling Factor 2, 3

Ambient Air Concentration

(g/m3)

10 minutes x 2.702 7.709

24 hours x 1.0 2.853 SO2

Annual

2.853 (Site II)

x 0.473 1.349

1 hour X 1.888 3.502

24 hours x 1.0 1.855 NOx

Annual

1.855 (Site VI)

x 0.473 0.877

24 hours --- 0

30 days --- 0

90 days --- 0 HF

Annual

Not detected 4

--- 0

24 hours x 1.0 44.810 PM10

Annual

44.810 (Site I) x 0.473 21.197

TSP 24 hours 105.603 (Site IV)

x 1.0 105.603

BaP Annual --- 5 --- ---

24 hours x 1.0 23.526 VOC

Annual

23.526 (Site VI) x 0.473 11.128

15 minutes x 2.491 39.206

30 minutes x 2.169 34.130

1 hour x 1.888 29.712 CO

8 hours

15.736 (Site III)

x 1.246 19.603

1 Values obtained from Table 1A in “REAL_AQM_Report_final draft.doc” received in the email sent from Ahmad Khan to Philip Julien dated December 12, 2005.

2 Factor used to scale the received 24hr average ambient air concentration data values to averaging periods of different length.

3 The annual average scaling factor was obtained by comparing the maximum 24hr average off-site concentration value to the maximum annual average off-site concentration value for SO2, NOx, and PM10, and then taking the maximum of these three scaling factors. This conservative approach was used in order to capture the predominant northeasterly flow of the region. For the shorter term averaging periods, a more appropriate power law formula was used (ex. 10 min. averaging period: scaling factor = [1440 min./10 min.]^0.2).

4 Informed that HF was not detected at any of the ambient air monitoring stations during a conference call with Philip Julien and Ahmad Khan on December 20, 2005.

5 Data not available.

BACKGROUND Ambient Air Concentrations

649.0 649.5 650.0 650.5 651.0 651.5 652.0

UTM Easting (km )

1128.5

1129.0

1129.5

1130.0

1130.5

1131.0

1131.5

UT

M N

ort

hing

(km

)

[ Coordinate System = UTM : D atum = N AP (Naparim a), Zone = 20, Hem isphere = N ]

RECEPTORS LOCATION50m resolution on buffer zone + approximately 50m on villages boudaries

100m inner domain; 250m middle domain and 500m outer domainA TOTAL of 4715 receptors

high school

Site A

PowerPlant

Vessigny V illage

Sobo V illage

Union V illage

Pollutant Averaging1

Period Limit Value

(g/m3)

Off-Site3 Exceedance (YES/NO)

Maximum4 Number of

Exceedances

Maximum3

Concentration Value

(g/m3)

Coordinates5 (km)

Ending Date/Time6

(YYYY, DDD, HH)

H2H Concentration

(g/m3)

Background (g/m3)

Maximum concentration + Background

(g/m3)

10 minutes 500 No 0 470.75 651.143, 1130.529

2000, 057, 18 414.27 7.709 478.459

24 hours 125 No 0 24.44 650.065, 1129.864

2000, 058, 00 22.65 2.853 27.293

24 hours 50 No 0 24.44 650.065, 1129.864

2000, 058, 00 22.65 2.853 27.293 SO2

Annual 50 No 0 8.04 650.051, 1129.796

2001, 001, 00 n/a 1.349 9.389

1 hour 200 (NO2) No(ref SENES)

0 369.32 650.036, 1129.712

2000, 322, 10 309.75 3.502 372.822

24 hours 200 No 0 41.65 649.000, 1128.500

2000, 180, 00 40.23 1.855 43.505 NOx

Annual 40 No 0 10.80 649.000, 1128.750

2001, 001, 00 n/a 0.877 11.677

24 hours 1.0 No 0 0.95 651.754, 1130.094

2000, 251, 00 0.73 - 0.95

30 days2 0.84 No 0 0.37 649.800, 1129.400

2000, 121, 00 0.31 - 0.37

90 days 0.4 No 0 0.30 650.036, 1129.712

2000, 181, 00 0.24 - 0.30 HF

Annual2 0.4 No 0 0.23 649.800, 1129.400

2001, 001, 00 n/a - 0.23

24 hours 50 No 0 23.38 649.800, 1125.500

2000, 171, 00 varies varies PM10

Annual 50 No 0 6.84 649.800, 1129.400

2001, 001, 00 n/a 1.197 1.917

TSP 24 hours 150 No 0 4.0 649.800, 1129.400

2000, 158, 00 n/a 105.603 109.603

BaP Annual 0.1 – 1.0 ng/m3 No 0 0.00398 ng/m3 649.800, 1129.400

2001, 001, 00 n/a - 0.00398 ng/m3

VOC Annual 0.1873 649.800, 1129.500

2001, 001, 00 n/a 11.128 11.3153

15 minutes 100,000 No 0 1,756.4 651.137, 1130.475

2000, 057, 18 955.00 39.206 1,795.606

30 minutes 60,000 No 0 1,529.0 651.137, 1130.475

2000, 057, 18 831.38 34.130 1,563.13

1 hour 30,000 No 0 1,331.1 651.137, 1130.475

2000, 057, 18 723.76

29.712 1,360.812 CO

8 hours 10,000 No 0 194.53 651.137, 1130.475

2000, 058, 00 155.30 19.603 214.133

1 Trinidad Second Schedule received in the fax sent from Philip Julien to Irene Lee dated October 20, 2005. 2 ALUTRINT Proposed Guidelines received in the email sent from Philip Julien to Joe Scire dated August 11, 2005. 3 Defined as occurring on or outside the outer border of the yellow Buffer Zone as depicted on “UESK0010 – ALUTRINT MAP FOR CEC APPLICATION.pdf” received in the

email sent from Philip Julien to Joe Scire dated November 29, 2006. 4 Occurring at any one off-site receptor. 5 Of the off-site receptor with the maximum concentration value. [UTM: Zone = 20, Hemisphere = N, Datum = NAP (Naparima)] 6 Of the averaging period with the maximum concentration value. [DDD = Julian Day]

Summary Results for Scenario 16 – cumulative analysis

Note: In blue, maximums which changes from the standalone run of Scenario 16


Period Limit Value

(g/m3) Exceedance

(YES/NO)

Maximum4 Number of

Exceedances

Maximum3

Concentration Value (g/m3)

Coordinates5 (km)

Ending Date/Time6

(YYYY, DDD, HH)

10 minutes 500 No 0 85.29 649.839, 1129.831 2000, 083, 16

24 hours 125 No 0 21.83 649.839, 1129.831 2000, 109, 00

24 hours 50 No 0 21.83 649.839, 1129.831 2000, 109, 00 SO2

Annual 50 No 0 6.76 649.839, 1129.831 2001, 001, 00

1 hour 278.5 649.839, 1129.831 2000, 295, 08

24 hours 200 No 0 19.1 649.839, 1129.831 2000, 232, 00 NOx

Annual 40 No 0 4.61 649.839, 1129.831 2001, 001, 00

24 hours 75 No 0 2.16 649.839, 1129.831 2000, 146, 00 PM10

Annual 50 No 0 0.46 649.839, 1129.831 2001, 001, 00

15 minutes 100,000 No 0 224.9 649.839, 1129.831 2000, 295, 08

30 minutes 60,000 No 0 195.8 649.839, 1129.831 2000, 295, 08

1 hour 30,000 No 0 170.5 649.839, 1129.831 2000, 295, 08 CO

8 hours 10,000 No 0 101.9 649.839, 1129.831 2000, 161, 16

1 Trinidad Second Schedule received in the fax sent from Philip Julien to Irene Lee dated October 20, 2005. 2 ALUTRINT Proposed Guidelines received in the email sent from Philip Julien to Joe Scire dated August 11, 2005. 3 Defined as occurring on or outside the outer border of the yellow Buffer Zone as depicted on “UESK0010 – ALUTRINT MAP FOR CEC APPLICATION.pdf” received in the email sent

from Philip Julien to Joe Scire dated November 29, 2006. 4 Occurring at any one off-site receptor. 5 Of the off-site receptor with the maximum concentration value. [UTM: Zone = 20, Hemisphere = N, Datum = NAP (Naparima)] 6 Of the averaging period with the maximum concentration value. [DDD = Julian Day]

Note: In blue, maximums which changes from the standalone run of Scenario 16 Note: Only pollutants with a cumulative effect from power plant and UAN Facility are summarized in this table

High School Receptor - Summary Results for Scenario 16 – cumulative analysis


Period Limit Value

(g/m3) Exceedance

(YES/NO)

Maximum4 Number of

Exceedances

Maximum3


Coordinates5 (km)

Ending Date/Time6

(YYYY, DDD, HH)

10 minutes 500 No 0 122.7 650.088, 1130.431 2000, 084,00

24 hours 125 No 0 23.7 650.016, 1129.870 2000, 109, 00

24 hours 50 No 0 23.7 650.016, 1129.870 2000, 109, 00 SO2

Annual 50 No 0 7.41 650.016, 1129.870 2001, 001, 00

1 hour 302.2 650.064, 1129.918 2000, 275, 12

24 hours 200 No 0 23.4 649.968, 1129.831 2000, 232, 00 NOx

Annual 40 No 0 5.72 650.088, 1130.431 2001, 001, 00

24 hours 75 No 0 3.24 50.064, 1129.918 2000, 227, 00 PM10

Annual 50 No 0 0.49 649.943, 1129.825 2001, 001, 00

15 minutes 100,000 No 0 379.4 650.070, 1129.961 2000, 275, 12

30 minutes 60,000 No 0 330.3 650.070, 1129.961 2000, 275, 12

1 hour 30,000 No 0 287.6 650.070, 1129.961 2000, 275, 12 CO

8 hours 10,000 No 0 107.4 650.016, 1129.870 2000, 108, 16




Vessigny Village (Highest Peak) - Summary Results for Scenario 16 – cumulative analysis


Period Limit Value

(g/m3) Exceedance

(YES/NO)

Maximum4 Number of

Exceedances

Maximum3


Coordinates5 (km)

Ending Date/Time6

(YYYY, DDD, HH)

10 minutes 500 No 0 99.44 649.822, 1129.049 2000, 238, 16

24 hours 125 No 0 18.15 649.897, 1129.142 2000, 103, 00

24 hours 50 No 0 18.15 649.897, 1129.142 2000, 103, 00 SO2

Annual 50 No 0 4.68 649.897, 1129.142 2001, 001, 00

1 hour 308.6 649.412, 1128.920 2000, 300, 14

24 hours 200 No 0 24.4 649.897, 1129.142 2000, 010, 00 NOx

Annual 40 No 0 4.54 649.247, 1128.973 2001, 001, 00

24 hours 75 No 0 22.6 649.443, 1128.906 2000, 146, 00 PM10

Annual 50 No 0 1.75 649.275, 1128.948 2001, 001, 00

15 minutes 100,000 No 0 235.6 649.482, 1128.923 2000, 286, 12

30 minutes 60,000 No 0 205.1 649.482, 1128.923 2000, 286, 12

1 hour 30,000 No 0 178.5 649.482, 1128.923 2000, 286, 12 CO

8 hours 10,000 No 0 98.6 649.897, 1129.142 2000, 148, 16




Union Village (Highest Peak) - Summary Results for Scenario 16 – cumulative analysis


Period Limit Value

(g/m3) Exceedance

(YES/NO)

Maximum4 Number of

Exceedances

Maximum3


Coordinates5 (km)

Ending Date/Time6

(YYYY, DDD, HH)

10 minutes 500 No 0 470.75 651.143, 1130.529 2000, 057, 18

24 hours 125 No 0 20.17 651.114, 1130.530 2000, 276, 00

24 hours 50 No 0 20.17 651.114, 1130.530 2000, 276, 00 SO2

Annual 50 No 0 0.942 650.389, 1131.035 2001, 001, 00

1 hour 133.0 651.023, 1130.743 2000, 167, 15

24 hours 200 No 0 9.31 651.047, 1130.603 2000, 235, 00 NOx

Annual 40 No 0 0.82 650.389, 1131.035 2001, 001, 00

24 hours 75 No 0 0.906 651.047, 1130.603 2000, 227, 00 PM10

Annual 50 No 0 0.058 650.389, 1131.035 2001, 001, 00

15 minutes 100,000 No 0 966.1 651.143, 1130.529 2000, 057, 18

30 minutes 60,000 No 0 841.0 651.143, 1130.529 2000, 057, 18

1 hour 30,000 No 0 732.1 651.143, 1130.529 2000, 057, 18 CO

8 hours 10,000 No 0 116.5 651.114, 1130.530 2000, 058, 00




Sobo Village (Highest Peak) - Summary Results for Scenario 16 – cumulative analysis

ALUTRINT: Attachment 2 – ADM Updated Results

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