Table 1. Estimating Veolia's Operating Parameter Limits (OPLs) Updated: 6/22/2012

Unit # Metal

Metal 

Feed 

Rates 

During 

2008 

Testing 

(lb/hr)a

Highest 12-

hr Rolling 

Average 

Metal Feed 

Rate 7/1/04-

1/1/08 

(lb/hr)

Highest 12-hr 

Rolling 

Average Metal 

Feedrate 

(lbs/hr), from 

June 7, 2012

Test Feed 

Rate As a % 

of the 

Highest 12-

hr Rolling 

Average of 

Historical 

Values

Was Testing 

Done at ≥ 

Highest 12-

hr 

Historical 

Rates?b

Was Testing 

Done at ≥ 

Median 12-

hr 

Historical 

Rates?b

Veolia’s 

3/2/10 

Proposed 

Extrapolated 

Feedrate 

(lb/hr)c

EPA’s 

Proposed 

OPLs (lb/hr)d

Est. 

Stack 

Conc. @ 

Veolia's 

Proposed 

OPLs 

(μg/dscm 

@ 7% O2)

e

Est. Stack 

Conc. @ 

EPA's 

Proposed 

OPLs 

(μg/dscm @ 

7% O2)

e

HWC MACT 

Limit (40 

C.F.R. § 

63.1219); 

μg/dscm @ 

7% O2 

Hg 0.00165 0.0054 0.0064 31% No Yes 0.0057 0.00165 183 53 130

LVM 47.2 84.5 68.5 56% No Yes 140 68.5 20 10 92

SVM 63.6 50.6 91.0 126% No Yes 189 91.0 65 31 230

Hg 0.0018 0.00545 0.0059 33% No Yes 0.0057 0.0018 181 57 130

LVM 47.7 77.3 77.8 62% No Yes 143 77.8 70 38 92

SVM 64.3 72.1 81.6 89% No Yes 193 81.6 173 73 230

Hg 0.0214 0.05981 0.060 36% No Yes 0.078 0.021 89 24 130

LVM 50.3 69.9 77.3 72% No Yes 151 77.3 30 15 92

SVM 63.6 58.4 98.1 109% No Yes 191 98.1 81 42 230

Notes

a. Feed rate calculated by EPA in March 2010 using calculated Hg spike composition & offsite waste feed concentrations.

b. In general, feed rates that fall within the top 10-25% of historical 12-hour rolling average rates may be considered 

for extrapolation.

c. Calculated by escalating the metal feed rate during testing by a factor of 3.

d. No extrapolation is recommended for Hg because the test feed rates were too low (< 50% of the highest historical rate). 

For Unit 4, EPA needs an acceptable analysis of the corresponding activated carbon injection rate at higher feed rates. 

If the test feed rate is higher than the highest historical 12-hour feed rate (e.g., SVM from Units 2 & 4), use the test 

feed rate. For LVM (Units 2, 3, 4) and SVM (Unit 3), extrapolate up to the highest historical feed rate.

e. Stack concentrations are estimated from exhaust parameters and "removal efficiencies" reported by Veolia in the 

March 2010 application, except that Hg removal efficiencies were re-calculated by EPA. (Todd Ramaly Memo, March 26, 2010)

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Table 2. Feed Rate Data & Exhaust Data From Veolia's March 2010 Application Updated: 6/1/2012

Unit #

Test Run 

#

Hg Feed Rate 

(lb/hr)a

LVM Feed 

Rate 

(lb/hr)

SVM Feed 

Rate 

(lb/hr)

Stack 

flow 

(dscfm)

Oxygen (% 

dry)

Removal 

Efficiency 

(RE) for Hg 

(%)

RE for LVM 

(%)

RE for 

SVM (%)

1 0.0023 46.82 62.06 5496 11.72 65.61 99.99973 99.99936

2 0.0017 46.52 63.46 5572 11.54 51.65 99.99991 99.99977

3 0.0016 47.17 63.27 5357 11.3 50.06 99.99979 99.99952

Average 0.0017 46.84 62.93 5475 11.52 55.50 99.99981 99.99955

1 0.0016 47.71 64.07 5665 11.99 53.25 99.99919 99.99875

2 0.0022 47.31 65 5719 10.96 57.36 99.99935 99.99842

3 0.0018 48.01 63.78 5890 11.98 54.56 99.99936 99.99897

Average 0.0018 47.68 64.28 5758 11.64 54.47 99.99930 99.99871

1 0.0257 50.61 63.51 17280 12.27 94.05 99.99958 99.99858

2 0.026 50.65 63.45 17255 12.13 96.17 99.99916 99.99795

3 0.0264 49.79 64.01 17189 11.63 95.91 99.99882 99.99819

Average 0.0214 50.35 63.66 17241 12.01 95.30 99.99919 99.99824

Table 3. Estimated Stack Concentrations at Proposed OPLs

Unit # Metal

Veolia’s 

3/2/10 

Proposed 

Extrapolated 

OPLs(lb/hr)

EPA’s 

Proposed 

OPLs 

(lb/hr)

Est. Stack 

Conc. @ 

Veolia's 

Proposed 

OPLs 

(μg/dscm @ 

7% O2)

Est. 

Stack 

Conc. @ 

EPA's 

Proposed 

OPLs 

(μg/dscm 

@ 7% O2)

HWC MACT 

Limit (40 

C.F.R. § 

63.1219); 

μg/dscm @ 

7% O2 

Hg 0.0057 0.00165 183 53 130

LVM 140 68.4687214 20 10 92

SVM 189 90.9824796 65 31 230

Hg 0.0057 0.0018 181 57 130

LVM 143 77.8169429 70 38 92

SVM 193 81.5946987 173 73 230

Hg 0.078 0.0214 89 24 130

LVM 151 77.2880386 30 15 92

SVM 191 98.128117 81 42 230

2

3

4

2

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Table 4. Unit #2 Stack Parameters Measured in September 2008 b

Test Run 

#

Stack 

flow 

(dscfm) % Oxygen (dry)

1 4698 11.21

2 5099 10.91

3 5248 11.35

Average 5015 11.16

a. Hg average feed rates & REs were calculated by EPA (Todd Ramaly, March 26, 2010).

b. Used for LVM & SVM calculations. August 2008 data for Unit # 2 were used for Hg
Veolia's Operating Parameter Limits (OPLs) 6/1/2012

Unit # Metal

Metal 

Feed 

Rates 

During 

2008 

Testing 

(lb/hr)a

Highest 12-hr 

Rolling 

Average Metal 

Feedrate 

7/1/04-1/1/08 

(lbs/hr), from 

Veolia's March 

2010 

application

Veolia’s 

3/2/10 

Proposed 

Feedrate 

Limits 

(lb/hr)

EPA’s 

Proposed 

Feedrate 

Limits 

(lb/hr)

Est. Stack 

Conc. @ 

Veolia's 

Proposed 

Limits 

(μg/dscm @ 

7% O2)

Est. Stack 

Conc. @ 

EPA's 

Proposed 

Limits 

(μg/dscm @ 

7% O2)

HWC MACT 

Limit (40 

C.F.R. § 

63.1219); 

μg/dscm @ 

7% O2 

Hg 0.00165 0.0055 0.0057 0.0017 183 53 130

LVM 47.2 84 140 68.4687214 20 10 92

SVM 63.6 91 189 90.98247959 65 31 230

Hg 0.0018 0.0054 0.0057 0.0018 181 57 130

LVM 47.7 77 143 77.81694287 70 38 92

SVM 64.3 82 193 81.59469867 173 73 230

Hg 0.0214 0.06 0.078 0.0214 89 24 130

LVM 50.3 77 151 77.28803855 30 15 92

SVM 63.6 58 191 98 81 42 230

LVM: "Low volatile metals" - As, Be & Cr (combined)

SVM: "Semivolatile metals" - Cd & Pb (combined)

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EPA Analysis of Veolia's June 7, 2012 Historical Data Submission

Analysis by Jennifer Williams & David Ogulei 

All years combined (12-hr rolling average, lb/hr)

7/1/04-5/31/09 Hg Minimum Median Average Maximum N

Unit 2 0 6.547E-06 0.000275 0.006361638 2586240

Unit 3 0 6.474E-06 0.000253 0.005917775 2586240

Unit 4 0 0.0033917 0.008659 0.059851552 2586240

1/2/05-12/31/08 LVM Minimum Median Average Maximum N

Unit 2 0 0.1162806 0.858779 68.4687214 2102400

Unit 3 0 0.1396305 0.99291 77.81694287 2102400

Unit 4 0 1.6565573 2.789275 77.28803855 2102400

1/2/05-12/31/08 SVM Minimum Median Average Maximum N

Unit 2 0 0.0781746 0.83193 90.98247959 2102400

Unit 3 0 0.0582251 0.829436 81.59469867 2102400

Unit 4 0 1.1326414 2.626729 98.12811703 2102400

Unit # Metal Date Range Number of Datapoints Minimum Median Average Maximum

OPLs 

proposed 

by Veolia

% of 

maximum 

historical 

rate

% above 

maximum 

historical 

rate

Hg 7/1/04-5/31/09 2586240 0 0.0000065 0.00027 0.00636 0.0057 90% -10%

LVM 1/2/05-12/31/08 2102400 0 0.1163 0.8587792 68.4687 140 204% 104%

SVM 1/2/05-12/31/08 2102400 0 0.0782 0.83192985 90.9825 189 208% 108%

Hg 7/1/04-5/31/09 2586240 0 0.0000065 0.00025276 0.00592 0.0057 96% -4%

LVM 1/2/05-12/31/08 2102400 0 0.1396 0.99290954 77.8169 143 184% 84%

SVM 1/2/05-12/31/08 2102400 0 0.0582 0.82943622 81.5947 193 237% 137%

Hg 7/1/04-5/31/09 2586240 0 0.0034 0.00865863 0.05985 0.078 130% 30%

LVM 1/2/05-12/31/08 2102400 0 1.6566 2.7892751 77.288 151 195% 95%

SVM 1/2/05-12/31/08 2102400 0 1.1326 2.62672949 98.1281 191 195% 95%

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3

4