N2O_IDLEX N2O_STREX N2O_TOTEX ROG_RUNE XROG_IDLEX ROG_STREX ROG_TOTEX ROG_DIURN ROG_HOTS OROG_RUNLOROG_TOTAL TOG_RUNEX TOG_IDLEX TOG_STREX TOG_TOTEX TOG_DIURN TOG_HOTS OTOG_RUNLOTOG_TOTAL 0 3.265E ‐06 3.015E ‐05 0.0003048 0 7.437E ‐08 0.0003048 4.626E ‐05 1.376E ‐05 0.000124 0.0004888 0.0004447 0 8.143E ‐08 0.0004448 4.626E ‐05 1.376E ‐05 0.000124 0.0006288
0.0178929 0 0.3047129 0.0340733 0.0456767 0 0.0797499 0 0 0 0.0797499 0.0387898 0.0519994 0 0.0907892 0 0 0 0.0907892
0.0015319 0 0.0168463 0.0032868 0.0004101 0 0.0036969 0 0 0 0.0036969 0.1456597 0.0268978 0 0.1725575 0 0 0 0.1725575 0 0.1085206 0.2415507 0.2874295 0 1.1805851 1.4680145 1.0189699 0.3039284 0.7724181 3.563331 0.4192902 0 1.2925878 1.711878 1.0189699 0.3039284 0.7724181 3.8071945 0 0 0.0025002 0.0021837 0 0 0.0021837 0 0 0 0.0021837 0.002486 0 0 0.002486 0 0 0 0.002486 0000000000000000000
0 0.0043153 0.0046007 0.0010213 0 0.0607806 0.0618018 0.0070072 0.0025462 0.0022506 0.0736058 0.0014902 0 0.0665471 0.0680373 0.0070072 0.00254 62 0.0022506 0.0798412 0 0.0110787 0.0330019 0.0689755 0 0.1704096 0.2393851 0.1776878 0.0492259 0.1438867 0.6101855 0.1005774 0 0.1865761 0.2871535 0.1776878 0.04922 59 0.1438867 0.6579539 0 0 3.209E ‐05 0.0001475 0 0 0.0001475 0 0 0 0.0001475 0.000168 0 0 0.000168 0 0 0 0.000168 0000000000000000000
0 7.423E ‐06 7.906E ‐06 1.737E ‐06 0 0.000105 0.0001067 8.059E ‐06 2.783E ‐06 2.566E ‐06 0.0001201 2.534E ‐06 0 0.0001149 0.0001175 8.059E ‐06 2.783E ‐06 2.566E ‐06 0.0001309 0 0.0570185 0.132613 0.1507831 0 0.6235827 0.7743659 0.4368605 0.1249344 0.3278251 1.6639859 0.2199775 0 0.682744 0.9027215 0.4368605 0.1249344 0.3278251 1.7923416 0 0 0.0019757 0.0005587 0 0 0.0005587 0 0 0 0.0005587 0.0006361 0 0 0.0006361 0 0 0 0.0006361 0000000000000000000
0 0.0003836 0.0004086 8.985E ‐05 0 0.005423 0.0055128 0.0004619 0.0001539 0.0001458 0.0062745 0.0001311 0 0.0059375 0.0060686 0.0004619 0.0001539 0.0001458 0.0068303
6.401E‐05 0.0164311 0.0260518 0.0411647 0.0092666 0.0565102 0.1069415 0.0630245 0.0165885 0.0897952 0.2763497 0.0600674 0.0135219 0.0618715 0.135460 8 0.0630245 0.0165885 0.0897952 0.304869
0.0002216 0 0.0407939 0.0811067 0.0011454 0 0.0822521 0 0 0 0.0822521 0.0923346 0.001304 0 0.0936386 0 0 0 0.0936386
8.451E‐06 0.0021261 0.003322 0.0038767 0.001213 0.0071535 0.0122432 0.0075806 0.0020187 0.0107144 0.0325569 0.0056569 0.00177 0.0078322 0.0152591 0.0 075806 0.0020187 0.0107144 0.0355728
0.0001596 0 0.0226824 0.0331077 0.0005174 0 0.0336251 0 0 0 0.0336251 0.0376909 0.000589 0 0.0382799 0 0 0 0.0382799 0 0.0005855 0.0081878 0.2180205 0 0.0909481 0.3089686 0.1210659 0.2166017 0.2271719 0.873808 0.260713 0 0.0988642 0.3595772 0.1210659 0.2166017 0.2271719 0.9244166 0 0.0349117 0.0894271 0.1252452 0 0.4726346 0.5978797 0.2928004 0.0816558 0.2258933 1.1982292 0.1824704 0 0.5174707 0.6999411 0.2928004 0.08165 58 0.2258933 1.3002905 0 0 0.0062794 0.0011374 0 0 0.0011374 0 0 0 0.0011374 0.0012949 0 0 0.0012949 0 0 0 0.0012949 0000000000000000000
0 0.0002382 0.000253 5.407E ‐05 0 0.0034083 0.0034624 0.0003324 0.0001095 0.0001071 0.0040113 7.889E ‐05 0 0.0037317 0.0038106 0.0003324 0.0001095 0.0001071 0.0043595 0 1.196E ‐05 0.0008007 0.0025732 0 4.912E ‐05 0.0026223 0.0145198 0.0040667 9.397E ‐05 0.0213029 0.0037548 0 5.378E ‐05 0.0038086 0.0145198 0.0040667 9.397E ‐05 0.0224891 0 0 0.0017186 0.0012744 0 0 0.0012744 0 0 0 0.0012744 0.0014508 0 0 0.0014508 0 0 0 0.0014508
1.07E‐05 0.0010097 0.0033855 0.0086994 0.0015825 0.0092386 0.0195205 0.0052321 0.0012928 0.0105774 0.0366228 0.0126941 0.0023092 0.0101152 0.025118 5 0.0052321 0.0012928 0.0105774 0.0422207
0.0041128 0 0.0902133 0.024648 0.0032422 0 0.0278902 0 0 0 0.0278902 0.0280598 0.003691 0 0.0317508 0 0 0 0.0317508
9.892E‐05 0 0.0009805 4.475E ‐05 2.384E ‐05 0 6.859E ‐05 0 0 0 6.859E ‐05 0.0031964 0.0017029 0 0.0048992 0 0 0 0.0048992
2.71E‐06 0.0003192 0.0009895 0.0020253 0.0003867 0.0020247 0.0044366 0.0013286 0.0003497 0.0014838 0.0075988 0.0029553 0.0005642 0.0022168 0.005736 3 0.0013286 0.0003497 0.0014838 0.0088985
0.000237 0 0.0139572 0.00356 0.0004233 0 0.0039833 0 0 0 0.0039833 0.0040528 0.0004819 0 0.0045347 0 0 0 0.0045347
1.629E‐06 0 9.289E ‐05 4.64E ‐06 4.442E ‐07 0 5.085E ‐06 0 0 0 5.085E ‐06 0.0003315 3.173E ‐05 0 0.0003632 0 0 0 0.0003632
1.525E‐05 4.5E ‐05 0.0003058 0.0005305 0.0018792 0.0003017 0.0027114 0.0002672 7.672E ‐05 0.0001742 0.0032295 0.0007741 0.0027421 0.0003304 0.0038466 0.0002672 7.672E ‐05 0.0001742 0.0043646
0.0002585 0 0.0033447 0.0010367 0.0001286 0 0.0011654 0 0 0 0.0011654 0.0011802 0.0001464 0 0.0013267 0 0 0 0.0013267
2.057E‐05 0 0.0001872 3.234E ‐05 5.539E ‐06 0 3.787E ‐05 0 0 0 3.787E ‐05 0.0023097 0.0003956 0 0.0027053 0 0 0 0.0027053 0 1.677E ‐05 3.891E ‐05 3.347E ‐05 0 3.914E ‐05 7.261E ‐05 3.975E ‐05 1.31E ‐05 2.541E ‐05 0.0001509 4.885E ‐05 0 4.285E ‐05 9.17E ‐05 3.975E ‐05 1.31E ‐05 2.541E ‐05 0.00017 0 0 0.0093128 0.0037165 0 0 0.0037165 0 0 0 0.0037165 0.0042309 0 0 0.0042309 0 0 0 0.0042309 0000000000000000000
0 0 0.0013964 0.0003199 0 0 0.0003199 0 0 0 0.0003199 0.0228474 0 0 0.0228474 0 0 0 0.0228474 Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 1
CO_RUNEX CO_IDLEX CO_STREX CO_TOTEX SOx_RUNEX SOx_IDLEX SOx_STREX SOx_TOTEX NH3_RUNE X Fuel Consumption
0.0109894 0 6.011E ‐05 0.0110495 2.759E ‐06 0 4.143E ‐08 2.801E ‐06 4.604E ‐06 0.0298749
0.1359039 0.6312771 0 0.767181 0.017239 0.0010754 0 0.0183145 0.2210214 172.76937
0.7637066 0.0538126 0 0.8175192 0000 0.0447654 9.5517012
20.892496 0 11.338641 32.231137 0.0700106 0 0.0022421 0.0722527 0.8096317 770.67977
0.023704 0 0 0.023704 0.0001504 0 0 0.0001504 0.0002082 1.4175673 0000000000
0.1548329 0 0.4492321 0.604065 0.000992 0 5.722E ‐05 0.0010492 0.0137074 11.19152
3.3324563 0 1.6528703 4.9853266 0.0065556 0 0.0002413 0.006797 0.0696263 72.499586
0.0007886 0 0 0.0007886 1.93E ‐06 0 0 1.93E ‐06 1.519E ‐06 0.0181965 0000000000
0.0002633 0 0.0007758 0.0010391 1.687E ‐06 0 1.069E ‐07 1.794E ‐06 2.571E ‐05 0.0191341
10.498461 0 5.8566022 16.355063 0.0386562 0 0.0012913 0.0399476 0.3788349 426.09898
0.0051991 0 0 0.0051991 0.0001188 0 0 0.0001188 0.0001215 1.1201986 0000000000
0.0136215 0 0.0400815 0.053703 8.727E ‐05 0 5.952E ‐06 9.322E ‐05 0.0013258 0.9943713
0.9995877 0.0786478 0.9409396 2.0191751 0.0068766 2.518E ‐05 7.981E ‐05 0.0069816 0.0342589 74.46913
0.2310973 0.0094936 0 0.2405909 0.0024401 1.333E ‐05 0 0.0024535 0.0630257 23.129776
0.103692 0.0102628 0.1255766 0.2395313 0.0009901 3.784E ‐06 1.043E ‐05 0.0010043 0.0044268 10.712138
0.0879931 0.0042882 0 0.0922813 0.0013546 9.599E ‐06 0 0.0013642 0.0319196 12.860695
2.7287212 0 0.475804 3.2045253 0.0003405 0 3.251E ‐05 0.000373 0.0015634 3.9782274
6.752752 0 3.5900598 10.342812 0.0246845 0 0.000853 0.0255375 0.1990566 272.39463
0.0194359 0 0 0.0194359 0.0003777 0 0 0.0003777 0.0002962 3.5603668 0000000000
0.0081971 0 0.0251909 0.033388 5.252E ‐05 0 4.575E ‐06 5.709E ‐05 0.0008003 0.6089849
0.0689154 0 0.001102 0.0700174 0.0004908 0 9.256E ‐08 0.0004909 0.0011355 5.2361236
0.004284 0 0 0.004284 0.0001034 0 0 0.0001034 0.0014518 0.9744271
0.1843897 0.023655 0.2050533 0.4130981 0.0013737 8.433E ‐06 1.5E ‐05 0.0013971 0.0034314 14.901957
0.079701 0.0817413 0 0.1614423 0.005175 0.0002472 0 0.0054222 0.0927304 51.150074
0.0129074 0.002842 0 0.0157494 0000 0.0045736 0.5559561
0.0457805 0.0029932 0.042787 0.0915607 0.0004258 1.972E ‐06 3.3E ‐06 0.0004311 0.0010719 4.5977896
0.0119505 0.0067748 0 0.0187253 0.0008246 1.425E ‐05 0 0.0008389 0.0141616 7.9135799
0.0013622 3.88E ‐
05 0 0.001401 0000 0.0004585 0.0526663
0.01359 0.0145271 0.0075786 0.0356957 7.113E ‐05 4.574E ‐06 4.136E ‐07 7.612E ‐05 0.0003948 0.81189
0.0031535 0.0032779 0 0.0064315 0.0001855 1.553E ‐05 0 0.000201 0.0023828 1.8964114
0.0077662 0.0004835 0 0.0082497 0000 0.0006758 0.1061229
0.0030068 0 0.0010986 0.0041054 5.081E ‐05 0 7.579E ‐08 5.089E ‐05 0.0002373 0.542784
0.0042621 0 0 0.0042621 0.0005601 0 0 0.0005601 0.0100836 5.2802941 0000000000
0.2585785 0 0 0.2585785 0000 0.005115 0.7917684
Greystar General Plan Amendment Construction HRA Attachment 1 MIG Memorandum May 11 2022
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Greystar General Plan Amendment Construction HRA Attachment 2 MIG Memorandum May 11, 2022
Attachment 2
AERMOD Output Files
Greystar General Plan Amendment Construction HRA Attachment 2 MIG Memorandum May 11, 2022
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Greystar General Plan Amendment Construction HRA Attachment 2 MIG Memorandum May 11, 2022
Attachment 2: AERMOD Output Files is comprised of 3,100 pages. It is on file with the City of Santa Clara and available in electronic format upon request.
Greystar General Plan Amendment Construction HRA Attachment 2 MIG Memorandum May 11, 2022
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Greystar General Plan Amendment Construction HRA Attachment 3 MIG Memorandum May 11, 2022
Attachment 3
AERMOD PM2.5 Exhaust Emissions Dispersion Figures
Greystar General Plan Amendment Construction HRA Attachment 3 MIG Memorandum May 11, 2022
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Greystar General Plan Amendment
Figure 1: Construction HRA Y ear 1 San Jose International Airport Legend
0.00058
0.0009
0.001
0.003
0.005
0.009
0.01 0.03
0.05 MEIR/PMI
Project Site
1000 ft
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Greystar General Plan Amendment
Figure 2: Construction HRA Y ear 2 San Jose International Airport Legend
0.00124
0.003
0.005
0.008
0.01 0.03
0.05 0.08
0.1 MEIR/PMI
Project Site
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Greystar General Plan Amendment
Figure 3: Construction HRA Y ear 3 San Jose International Airport Legend
0.00198
0.003
0.005
0.008
0.01 0.03
0.05 0.08
0.1 MEIR/PMI
Project Site
1000 ft
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Greystar General Plan Amendment
Figure 4: Construction HRA Y ear 4 San Jose International Airport Legend
0.00319
0.005
0.007
0.01 0.03
0.05 0.07
0.1 0.3
MEIR/PMI
Project Site
1000 ft
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Greystar General Plan Amendment
Figure 5: Construction HRA Y ear 1 Moffett Federal Airfield Legend
0.00072
0.001
0.002
0.005
0.007
0.01 0.02
0.05 0.07
MEIR/PMI
Project Site
1000 ft
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Greystar General Plan Amendment
Figure 6: Construction HRA Y ear 2 Moffett Federal Airfield Legend
0.00147
0.003
0.005
0.008
0.01 0.03
0.05 0.08
0.1 MEIR/PMI
Project Site
1000 ft
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Greystar General Plan Amendment
Figure 7: Construction HRA Y ear 3 Moffett Federal Airfield Legend
0.00241
0.005
0.006
0.01 0.02
0.05 0.06
0.1 0.2
MEIR/PMI
Project Site
1000 ft
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Greystar General Plan Amendment
Figure 8: Construction HRA Y ear 4 Moffett Federal Airfield Legend
0.00446
0.005
0.006
0.008
0.01 0.02
0.04 0.05
0.06 0.08
0.1 0.2
0.4 MEIR/PMI
Project Site
1000 ft
N➤➤
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Gr
eystar General Plan Amendment Construction HRA Attachment 4 MIG Memorandum May 11, 2022
Attachment 4
Health Risk Assessment Calculations
Greystar General Plan Amendment Construction HRA Attachment 4 MIG Memorandum May 11, 2022
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Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Attachment 4: Construction Health Risk Assessment Calculations (DPM) Greystar General Plan Amendment HRA
Residential Health Risk Calculations - Moffett Federal Airfield Met Data
METHODOLOGY
Dose (Air) = Cair x DBR x A x EF x CF
Where: Cair Chemical concentration in air (µg/m3)
DBR: Daily breathing rate (L/kg-day)
A: Inhalation adsorption factor (unitless)
EF: Exposure Frequency, days at home / days in year (unitless) CF: 10^-6 Conversion Factor (m3/L and mg/µg)
Cancer Risk (per million) = Dose (Air) x CPF x ASF x (ED/AT) x FAH x 1,000,000 Where: Dose: Dose of chemical in the air (µg/m3)
CPF: Cancer Potency Factor (mg/kg-day)-1
ASF: Age Sensitivity Factor
ED: Exposure Duration (years)
AT: Averaging Time for lifetime cancer risks
FAH: Fraction of daily time spent at home / school
Risk Parameter Values by Age Bin
0-2 Years 2-16 Years 16-30 Years 16-70 Years
DBR 1090 572 261 233
A 1 1 1 1
EF 0.96 0.96 0.96 0.96
CF 1.00E-06 1.00E-06 1.00E-06 1.00E-06
CPF 1.1 1.1 1.1 1.1
ASF 10 3 1 1
ED 2 14 14 54
AT 70 70 70 70
FAH 1 1 0.73 0.73
Scenario 1 (EIR; Tier III and IV): AERMOD Modeled DPM Concentrations (PMI/MEIR) Conc. X Y Conc. X Y
Year 1 0.0625 591291.00 4137942.00 0.0065 591165.00 4137730.00 Year 2 0.1371 591216.00 4137942.00 0.0130 591165.00 4137730.00 Year 3 0.22471 591216.00 4137942.00 0.0208 591165.00 4137730.00 Year 4 0.25458 591291.00 4138242.00 0.0115 591165.00 4137730.00
PMI MEIR
1 Variable Residential Age Bin
3rd Trimester
361
1 0.96
1.00E-06
1.1 10
0.25 70
Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Scenario 1: Risk Assessment Year 1 MEIR
Scenario
Year 1
Year 2
Year 3
Year 4
Scenario 1: Year 1 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.00649 361 1 0.96 1.00E-06 = 2.25E-06
0-2 Years 0.00649 1090 1 0.96 1.00E-06 = 6.78E-06
2-16 Years 0.00649 572 1 0.96 1.00E-06 = 3.56E-06
16-30 Years 0.00649 261 1 0.96 1.00E-06 = 1.62E-06
30-70 Years 0.00649 233 1 0.96 1.00E-06 = 1.45E-06
Scenario 1: Year 1 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 2.25E-06 1.1 10 0.25 70 1 1,000,000 0.1
0-2 Years 6.78E-06 1.1 10 1.00 70 1 1,000,000 1.1
2-16 Years 3.56E-06 1.1 3 1.00 70 1 1,000,000 0.2
16-30 Years 1.62E-06 1.1 1 1.00 70 0.73 1,000,000 0.0
30-70 Years 1.45E-06 1.1 1 1.00 70 0.73 1,000,000 0.0
Scenario 1: Year 2 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.01297 361 1 0.96 1.00E-06 = 4.49E-06
0-2 Years 0.01297 1090 1 0.96 1.00E-06 = 1.36E-05
2-16 Years 0.01297 572 1 0.96 1.00E-06 = 7.11E-06
16-30 Years 0.01297 261 1 0.96 1.00E-06 = 3.25E-06
30-70 Years 0.01297 233 1 0.96 1.00E-06 = 2.90E-06
Scenario 1: Year 2 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 4.49E-06 1.1 10 0.25 70 1 1,000,000 0.2
0-2 Years 1.36E-05 1.1 10 1.00 70 1 1,000,000 2.1
2-16 Years 7.11E-06 1.1 3 1.00 70 1 1,000,000 0.3
16-30 Years 3.25E-06 1.1 1 1.00 70 0.73 1,000,000 0.0
30-70 Years 2.90E-06 1.1 1 1.00 70 0.73 1,000,000 0.0
Scenario 1: Year 3 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.0208 361 1 0.96 1.00E-06 = 7.20E-06
0-2 Years 0.0208 1090 1 0.96 1.00E-06 = 2.17E-05
2-16 Years 0.0208 572 1 0.96 1.00E-06 = 1.14E-05
16-30 Years 0.0208 261 1 0.96 1.00E-06 = 5.21E-06
30-70 Years 0.0208 233 1 0.96 1.00E-06 = 4.65E-06
Scenario 1: Year 3 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 7.20E-06 1.1 10 0.25 70 1 1,000,000 0.3
0-2 Years 2.17E-05 1.1 10 1.00 70 1 1,000,000 3.4
2-16 Years 1.14E-05 1.1 3 1.00 70 1 1,000,000 0.5
16-30 Years 5.21E-06 1.1 1 1.00 70 0.73 1,000,000 0.1
30-70 Years 4.65E-06 1.1 1 1.00 70 0.73 1,000,000 0.1
0.0208 0.00416
0.0115 0.00230
0.00259
AERMOD DPM Conc. Chronic Hazard Quotient
0.0065 0.00130
0.0130
Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Scenario 1: Year 4 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.01151 361 1 0.96 1.00E-06 = 3.98E-06
0-2 Years 0.01151 1090 1 0.96 1.00E-06 = 1.20E-05
2-16 Years 0.01151 572 1 0.96 1.00E-06 = 6.31E-06
16-30 Years 0.01151 261 1 0.96 1.00E-06 = 2.88E-06
30-70 Years 0.01151 233 1 0.96 1.00E-06 = 2.57E-06
Scenario 1: Year 4 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 3.98E-06 1.1 10 0.25 70 1 1,000,000 0.2
0-2 Years 1.20E-05 1.1 10 1.00 70 1 1,000,000 1.9
2-16 Years 6.31E-06 1.1 3 1.00 70 1 1,000,000 0.3
16-30 Years 2.88E-06 1.1 1 1.00 70 0.73 1,000,000 0.0
30-70 Years 2.57E-06 1.1 1 1.00 70 0.73 1,000,000 0.0
Scenario 1: Total Excess Risk at MEIR (Exposure Year 1 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 1 1.2 1.1 0.2 0.0 0.0
Year 2 2.1 0.3 0.3 0.0 0.0
Year 3 0.5 0.5 0.5 0.1 0.1
Year 4 0.3 0.3 0.3 0.03 0.0
Total 4.1 2.2 1.3 0.1 0.1
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 1 Scneario 1: Total Excess Risk at MEIR (Exposure Year 2 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 2 2.3 2.1 0.3 0.0 0.0
Year 3 3.4 0.5 0.5 0.1 0.1
Year 4 0.3 0.3 0.3 0.03 0.0
Total 6.0 3.0 1.2 0.1 0.1
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 2 Scneario 1: Total Excess Risk at MEIR (Exposure Year 3 and 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 3 3.7 3.4 0.5 0.1 0.1
Year 4 1.9 0.3 0.3 0.03 0.0
Total 5.6 3.7 0.8 0.1 0.1
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 3 Scaling Factors for Scenario 2 Risks
Year 1
Year 2
Year 3
Year 4
Risks Presented by Age at Time of Construction Initiation Risks Presented by Age at Time of Construction Initiation
2.83 1.01
0.74 Risks Presented by Age at Time of Construction Initiation
0.57 Scaling Factors
Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Scenario 2: Risk Assessment MEIR
Scenario
Year 1
Year 2
Year 3
Year 4
Scenario 2: Total Excess Risk at MEIR (Exposure Year 1 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 1 3.3 3.0 0.5 0.1 0.0
Year 2 2.2 0.3 0.3 0.0 0.0
Year 3 0.4 0.4 0.4 0.0 0.0
Year 4 0.2 0.2 0.2 0.0 0.0
Total 6.0 3.9 1.4 0.2 0.1
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 1 Scenario 2: Total Excess Risk at MEIR (Exposure Year 2 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 2 2.3 2.2 0.3 0.0 0.0
Year 3 2.5 0.4 0.4 0.0 0.0
Year 4 0.2 0.2 0.2 0.0 0.0
Total 5.0 2.7 0.9 0.1 0.1
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 2 Scneario 2: Total Excess Risk at MEIR (Exposure Year 3 and 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 3 2.7 2.5 0.4 0.0 0.0
Year 4 1.1 0.2 0.2 0.0 0.0
Total 3.8 2.7 0.6 0.1 0.1
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 3 Risks Presented by Age at Time of Construction Initiation Risks Presented by Age at Time of Construction Initiation Risks Presented by Age at Time of Construction Initiation AERMOD DPM Conc. Chronic Hazard Quotient
0.0184 0.0037
0.0131 0.0026
0.0153 0.0031
0.0065 0.0013
Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Attachment 4: Construction Health Risk Assessment Calculations (DPM) Greystar General Plan Amendment HRA
Residential Health Risk Calculations - San Jose International Airport Met Data
METHODOLOGY
Dose (Air) = Cair x DBR x A x EF x CF
Where: Cair Chemical concentration in air (µg/m3)
DBR: Daily breathing rate (L/kg-day)
A: Inhalation adsorption factor (unitless)
EF: Exposure Frequency, days at home / days in year (unitless) CF: 10^-6 Conversion Factor (m3/L and mg/µg)
Cancer Risk (per million) = Dose (Air) x CPF x ASF x (ED/AT) x FAH x 1,000,000 Where: Dose: Dose of chemical in the air (µg/m3)
CPF: Cancer Potency Factor (mg/kg-day)-1
ASF: Age Sensitivity Factor
ED: Exposure Duration (years)
AT: Averaging Time for lifetime cancer risks
FAH: Fraction of daily time spent at home / school
Risk Parameter Values by Age Bin
0-2 Years 2-16 Years 16-30 Years 16-70 Years
DBR 1090 572 261 233
A 1 1 1 1
EF 0.96 0.96 0.96 0.96
CF 1.00E-06 1.00E-06 1.00E-06 1.00E-06
CPF 1.1 1.1 1.1 1.1
ASF 10 3 1 1
ED 2 14 14 54
AT 70 70 70 70
FAH 1 1 0.73 0.73
Scenario 1 (EIR; Tier III and IV): AERMOD Modeled DPM Concentrations (PMI/MEIR) Conc. X Y Conc. X Y
Year 1 0.0583 591291.00 4138017.00 0.0005 591165.00 4137730.00 Year 2 0.1177 591291.00 4138092.00 0.0011 591165.00 4137730.00 Year 3 0.19844 591291.00 4138017.00 0.0017 591165.00 4137730.00 Year 4 0.25833 591291.00 4138317.00 0.0009 591165.00 4137730.00
PMI MEIR
1 Variable Residential Age Bin
3rd Trimester
361
1 0.96
1.00E-06
1.1 10
0.25 70
Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Scenario 1: Risk Assessment Year 1 MEIR
Scenario
Year 1
Year 2
Year 3
Year 4
Scenario 1: Year 1 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.00053 361 1 0.96 1.00E-06 = 1.83E-07
0-2 Years 0.00053 1090 1 0.96 1.00E-06 = 5.54E-07
2-16 Years 0.00053 572 1 0.96 1.00E-06 = 2.91E-07
16-30 Years 0.00053 261 1 0.96 1.00E-06 = 1.33E-07
30-70 Years 0.00053 233 1 0.96 1.00E-06 = 1.18E-07
Scenario 1: Year 1 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 1.83E-07 1.1 10 0.25 70 1 1,000,000 0.0
0-2 Years 5.54E-07 1.1 10 1.00 70 1 1,000,000 0.1
2-16 Years 2.91E-07 1.1 3 1.00 70 1 1,000,000 0.0
16-30 Years 1.33E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
30-70 Years 1.18E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
Scenario 1: Year 2 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.00105 361 1 0.96 1.00E-06 = 3.63E-07
0-2 Years 0.00105 1090 1 0.96 1.00E-06 = 1.10E-06
2-16 Years 0.00105 572 1 0.96 1.00E-06 = 5.76E-07
16-30 Years 0.00105 261 1 0.96 1.00E-06 = 2.63E-07
30-70 Years 0.00105 233 1 0.96 1.00E-06 = 2.35E-07
Scenario 1: Year 2 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 3.63E-07 1.1 10 0.25 70 1 1,000,000 0.0
0-2 Years 1.10E-06 1.1 10 1.00 70 1 1,000,000 0.2
2-16 Years 5.76E-07 1.1 3 1.00 70 1 1,000,000 0.0
16-30 Years 2.63E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
30-70 Years 2.35E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
Scenario 1: Year 3 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.00168 361 1 0.96 1.00E-06 = 5.82E-07
0-2 Years 0.00168 1090 1 0.96 1.00E-06 = 1.76E-06
2-16 Years 0.00168 572 1 0.96 1.00E-06 = 9.21E-07
16-30 Years 0.00168 261 1 0.96 1.00E-06 = 4.20E-07
30-70 Years 0.00168 233 1 0.96 1.00E-06 = 3.75E-07
Scenario 1: Year 3 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 5.82E-07 1.1 10 0.25 70 1 1,000,000 0.0
0-2 Years 1.76E-06 1.1 10 1.00 70 1 1,000,000 0.3
2-16 Years 9.21E-07 1.1 3 1.00 70 1 1,000,000 0.0
16-30 Years 4.20E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
30-70 Years 3.75E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
0.0011 0.00021
0.0017 0.00034
0.0009 0.00018
AERMOD DPM Conc. Chronic Hazard Quotient
0.0005 0.00011
Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Scenario 1: Year 4 Dose @ MEIR
Age Group Cair x BR A EF CF Dose
3rd Trimester 0.00092 361 1 0.96 1.00E-06 = 3.18E-07
0-2 Years 0.00092 1090 1 0.96 1.00E-06 = 9.62E-07
2-16 Years 0.00092 572 1 0.96 1.00E-06 = 5.05E-07
16-30 Years 0.00092 261 1 0.96 1.00E-06 = 2.30E-07
30-70 Years 0.00092 233 1 0.96 1.00E-06 = 2.06E-07
Scenario 1: Year 4 Excess Risk at MEIR
Age Group Dose CPF ASF ED AT FAH Conversion Risk
3rd Trimester 3.18E-07 1.1 10 0.25 70 1 1,000,000 0.0
0-2 Years 9.62E-07 1.1 10 1.00 70 1 1,000,000 0.2
2-16 Years 5.05E-07 1.1 3 1.00 70 1 1,000,000 0.0
16-30 Years 2.30E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
30-70 Years 2.06E-07 1.1 1 1.00 70 0.73 1,000,000 0.0
Scenario 1: Total Excess Risk at MEIR (Exposure Year 1 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 1 0.1 0.1 0.0 0.0 0.0
Year 2 0.2 0.0 0.0 0.0 0.0
Year 3 0.0 0.0 0.0 0.0 0.0
Year 4 0.0 0.0 0.0 0.00 0.0
Total 0.3 0.2 0.1 0.0 0.0
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 1 Scneario 1: Total Excess Risk at MEIR (Exposure Year 2 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 2 0.2 0.2 0.0 0.0 0.0
Year 3 0.3 0.0 0.0 0.0 0.0
Year 4 0.0 0.0 0.0 0.00 0.0
Total 0.5 0.2 0.1 0.0 0.0
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 2 Scneario 1: Total Excess Risk at MEIR (Exposure Year 3 and 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 3 0.3 0.3 0.0 0.0 0.0
Year 4 0.2 0.0 0.0 0.00 0.0
Total 0.4 0.3 0.1 0.0 0.0
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 3 Scaling Factors for Scenario 2 Risks
Year 1
Year 2
Year 3
Year 4
0.74 0.57
1.01 Risks Presented by Age at Time of Construction Initiation Risks Presented by Age at Time of Construction Initiation Risks Presented by Age at Time of Construction Initiation Scaling Factors
2.83 Greystar General Plan Amendment
Construction Health Risk Assessment Memorandum Attachment 4
Scenario 2: Risk Assessment MEIR
Scenario
Year 1
Year 2
Year 3
Year 4
Scenario 2: Total Excess Risk at MEIR (Exposure Year 1 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 1 0.3 0.2 0.0 0.0 0.0
Year 2 0.2 0.0 0.0 0.0 0.0
Year 3 0.0 0.0 0.0 0.0 0.0
Year 4 0.0 0.0 0.0 0.0 0.0
Total 0.5 0.3 0.1 0.0 0.0
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 1 Scenario 2: Total Excess Risk at MEIR (Exposure Year 2 through 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 2 0.2 0.2 0.0 0.0 0.0
Year 3 0.2 0.0 0.0 0.0 0.0
Year 4 0.0 0.0 0.0 0.0 0.0
Total 0.4 0.2 0.1 0.0 0.0
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 2 Scneario 2: Total Excess Risk at MEIR (Exposure Year 3 and 4) Infant Child (1-2) Child 2<x<16Adult 16<x<30Adult 30<x<70 Year 3 0.2 0.2 0.0 0.0 0.0
Year 4 0.1 0.0 0.0 0.0 0.0
Total 0.3 0.2 0.0 0.0 0.0
Note: Infant exposure includes 3rd trimester (0.25 years) and child (1 year exposure) in Year 3 Risks Presented by Age at Time of Construction Initiation Risks Presented by Age at Time of Construction Initiation Risks Presented by Age at Time of Construction Initiation
0.0011 0.0002
0.0012 0.0002
0.0005 0.0001
AERMOD DPM Conc. Chronic Hazard Quotient
0.0015 0.0003