**Appendix D: Summary of Statistical, Fuel, and Measurement Detection Level Variability for Existing Sources Statistical**  **Variability Measurement Detection** 

**Level Variability**

**March 21st Final Rule Floor**  **UPL 99% Confidence**  **Level 3x RDL**  **Max Ratio (all data outliers removed,**  **fuel-specific) 99% Combined** 

**Variance * Max Ratio** **(all data outliers removed, fuel**  **specific)**

**Solid Fuel** 4.6E-06 Log-normal 

### 3.1E-06 **3.04E-06** 8.60E-07 11.45 1.20E-05 **Liquid** 3.5E-06 Log-normal **2.6E-05** 2.49E-05 4.64E-07 1.04 **2.59E-05 Process Gas**  1.3E-05 Tie **7.9E-06 7.85E-06**  4.35E-07

**Solid Fuel** 3.5E-02 Log-normal **2.2E-02 2.13E-02**  1.91E-04 3.66 7.81E-02 **Liquid** All Liquids w/Fuel Analysis3.3E-04 Tie **1.2E-03** 4.89E-04 1.38E-04 2.46 **1.20E-03 Process Gas**  1.7E-03 Tie **1.7E-03 1.67E-03**  6.30E-05

**Biomass** Dutch Oven/ Pile Burner N/A Log-normal **2.4E-04 2.31E-04**  1.27E-05
FB N/A Log-normal **1.2E-03 1.19E-03**  5.21E-05 Fuel Cell N/A Tie **4.9E-05 1.83E-01**  7.82E-05 Suspension Burner N/A Tie **1.1E-03 1.04E-03**  1.58E-05 Suspension/Grate N/A Tie **4.9E-04** 4.75E-04 **4.82E-04** Wet Biomass StokerN/A Tie **5.7E-05 5.62E-05**  3.70E-05 Dry Biomass StokerN/A Tie **4.0E-03 3.97E-03**  N/A **Coal** FB N/A Tie **1.7E-05** 1.19E-05 1.42E-05 1.14 **1.62E-05** PC N/A Tie **5.9E-05 5.85E-05**  4.86E-05 Stoker/OtherN/A Log-normal **8.3E-05 8.21E-05**  4.80E-05 **Heavy Liquid** N/A Tie **2.5E-04** 2.19E-04 3.01E-06 1.13 **2.48E-04**(b) **Light Liquid** N/A Normal **4.1E-04** 1.59E-04 **4.02E-04** (b) **Non-Continental** N/A Tie **6.2E-04** 4.08E-04 3.29E-05 1.13 **6.12E-04**(b) **Process Gas** N/A Tie **2.4E-04 2.33E-04**  1.11E-04

**Biomass** Dutch Oven/ Pile Burner3.9E-02 Tie **3.60E-02 3.58E-02**  1.51E-03
FB3.9E-02 Log-normal **1.1E-01 1.04E-01**  1.32E-03 Fuel Cell3.9E-02 Log-normal **3.30E-02 3.28E-02**  2.43E-03 Suspension Burner3.9E-02 Log-normal **5.1E-02 5.06E-02**  3.18E-03 Suspension/Grate3.9E-02 Log-normal **4.4E-01 4.37E-01**  2.86E-03 Wet Biomass Stoker3.9E-02 Log-normal **2.9E-02 2.84E-02**  1.38E-03 Dry Biomass Stoker3.9E-02 Tie **3.2E-01 3.19E-01**  1.39E-03 **Coal** FB3.9E-02 Log-normal **8.8E-02 8.78E-02**  2.48E-03 PC3.9E-02 Log-normal **4.4E-02 4.33E-02**  1.38E-03 Stoker/Other3.9E-02 Log-normal **2.8E-02 2.79E-02**  1.42E-03 **Heavy Liquid** 7.5E-03 Tie **6.2E-02 6.15E-02**  7.07E-04 **Light Liquid** 7.5E-03 Log-normal **3.4E-03 3.34E-03**  8.96E-04 **Non-Continental** 7.5E-03 Tie **8.0E-03 7.93E-03**  1.19E-03 **Process Gas** 4.3E-02 Tie **6.7E-03 6.67E-03**  5.25E-04

**Biomass** Dutch Oven/ Pile BurnerN/A - switched

subcategorization Log-normal 

### 810 **804**
FB 430 Log-normal **370 364**  Fuel Cell 690 Tie 

### 1500 **1,468** Suspension BurnerN/A - switched

subcategorization Tie **58 58**  Suspension/Grate3500 Log-normal **3900 3,857**  Wet Biomass Stoker490 Log-normal **790 783**  Dry Biomass Stoker490 Tie **250 242**  **Coal** FB 82 Tie **56 56**  PC 160 Tie **41 40.2**  Stoker/Other270 Log-normal **220 220**  **Heavy Liquid** 10 Tie **10 9.6**  **Light Liquid** 7 Log-normal **7 6.05**  **Non-Continental** 10 Log-normal **18 18.0**  **Process Gas** 4 Tie **4 3.57** 
Represents the variability selected as the MACT floor emission limit for the subcategory. Non-continental data in blue underline is represented by #6 Oil data. (a) The maximum fuel variability factor is less than 1 so it is not used in the analysis. (b) The TSM8 values were not selected for light, heavy, and non-continental liquid but the calculations are shown here for reference.3x RDL Not Applicable for CO No Data No Data No Data

**PM (lb/mmBtu)**

**CO (ppm @ 3% O2) Notes** 

No Data N/A (a)

N/A (a)

No Data No Data

No Data No Data No Data No Data **Subcategory Distribution (Normal, Lognormal**  **or Tie)** (Lognormal or Ties default to lognormal distribution using Bhaumik and Gibbons approach for lognormal distributions. Normal distributions use proposed UPL

approach.) **Hg (lb/mmBtu)**

**HCl (lb/mmBtu)**

**TSM (lb/mmBtu) Fuel Variability** 

No Data **MACT Floor (Rounded to two**  **Sig Figs)**