# Table	3 **Summary	of	Hexavalent	Chromium	Test	Results**

**ALCOA	Massena	-	East	Plant Line	1	Exhaust**  **Massena,	New	York**

**Run	Identification Run	1**  **Run	2 Run	3**  **Average**

Run	Date 30Apr13 30Apr13 01May13 Start/Stop	Time 1043/15011610/20260825/1230

Process	Rate tons	of	Aluminum	produced/hr 5.12 5.12 5.12 5.12

Exhaust	Gas	Conditions Temperature	(deg.	F) 83 85 87 85 Moisture	(volume	%) 0.7 1.0 0.9 0.9 Oxygen	(dry	volume	%) 20.90 20.90 20.90 20.90 Carbon	Dioxide	(dry	volume	%) 0.00 0.00 0.00 0.00

Volumetric	Flow	Rate acfm 2,722 2,675 2,671 2,689 dscfm 2,605 2,542 2,543 2,563

Hexavalent	Chromium mg/dscm 4.29E-05 1.53E-04 <6.51E-05 <8.71E-05 lb/hr 4.19E-07 1.46E-06 <6.20E-07 <8.33E-07 lb/	ton	of	Aluminum	produced 8.18E-08 2.85E-07 <1.21E-07 <1.63E-07

-Please	note	that	"<"	indicates	result	is	below	analytical	detection	limit

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## Method	0061-Data	Summary **ALCOA	Massena	-	East	Plant Line	1	Exhaust**  **Massena,	New	York**

**Run	1 Run	2**  **Run	3**

**Traverse Stack**  **Delta Delta**  **Tm(F) SQRT**  **Stack Delta**  **Delta Tm(F)**  **SQRT Stack**  **Delta Delta**  **Tm(F) SQRT**  **Point Temp(F)**  **P H**  **in out**  **Delta	P Temp(F)**  **P H**  **in out**  **Delta	P Temp(F)**  **P H**  **in out**  **Delta	P** 1 85 0.53 1.4069 69 0.7280 85 0.53 1.40 78 76 0.7280 85 0.49 1.30 75 74 0.7000 1 85 0.53 1.4070 69 0.7280 85 0.53 1.4080 76 0.7280 85 0.49 1.30 75 74 0.7000 1 85 0.53 1.4073 69 0.7280 85 0.53 1.4080 77 0.7280 85 0.49 1.30 75 74 0.7000 1 85 0.53 1.4075 69 0.7280 85 0.53 1.4080 77 0.7280 85 0.49 1.30 7674 0.7000 1 85 0.53 1.4075 70 0.7280 85 0.53 1.4080 77 0.7280 85 0.49 1.30 7674 0.7000 1 85 0.53 1.4076 71 0.7280 85 0.53 1.4080 77 0.7280 85 0.49 1.30 7674 0.7000 2 85 0.55 1.4676 71 0.7416 85 0.56 1.4881 77 0.7483 85 0.58 1.547674 0.7616 2 85 0.55 1.4676 71 0.7416 85 0.56 1.4881 77 0.7483 85 0.58 1.547674 0.7616 2 85 0.55 1.4676 71 0.7416 85 0.56 1.4881 77 0.7483 85 0.58 1.547674 0.7616 2 85 0.55 1.4677 72 0.7416 85 0.56 1.4881 78 0.7483 85 0.58 1.547674 0.7616 2 85 0.55 1.4678 72 0.7416 85 0.56 1.4880 78 0.7483 85 0.58 1.547674 0.7616 2 85 0.55 1.4678 73 0.7416 85 0.56 1.4880 78 0.7483 85 0.58 1.547674 0.7616 3 85 0.52 1.3878 73 0.7211 85 0.46 1.22 81 78 0.6782 85 0.50 1.33 7674 0.7071 3 85 0.52 1.3879 74 0.7211 85 0.46 1.22 81 78 0.6782 85 0.50 1.33 7674 0.7071 3 85 0.52 1.3879 74 0.7211 85 0.46 1.22 81 78 0.6782 85 0.50 1.33 7674 0.7071 3 85 0.52 1.3879 74 0.7211 85 0.46 1.22 81 78 0.6782 85 0.50 1.33 77 74 0.7071 3 85 0.52 1.3879 74 0.7211 85 0.46 1.22 81 78 0.6782 85 0.50 1.33 77 74 0.7071 3 85 0.52 1.3880 75 0.7211 85 0.46 1.22 82 78 0.6782 85 0.50 1.33 77 74 0.7071 4 85 0.45 1.1980 75 0.6708 85 0.49 1.3082 78 0.7000 85 0.63 1.67 77 74 0.7937 4 85 0.45 1.1980 75 0.6708 85 0.49 1.3082 78 0.7000 85 0.63 1.67 77 74 0.7937 4 85 0.45 1.1980 75 0.6708 85 0.49 1.3082 78 0.7000 85 0.63 1.67 77 74 0.7937 4 85 0.45 1.1980 75 0.6708 85 0.49 1.3081 78 0.7000 85 0.63 1.67 77 74 0.7937 4 85 0.45 1.1981 75 0.6708 85 0.49 1.3081 78 0.7000 85 0.63 1.67 78 74 0.7937 4 85 0.45 1.1982 76 0.6708 85 0.49 1.3081 78 0.7000 85 0.63 1.67 78 75 0.7937 1 80 0.54 1.4379 74 0.7348 84 0.49 1.30 78 77 0.7000 89 0.56 1.486868 0.7483 1 80 0.54 1.4380 75 0.7348 84 0.49 1.30 79 77 0.7000 89 0.56 1.48 72 68 0.7483 1 80 0.54 1.4380 76 0.7348 84 0.49 1.30 79 77 0.7000 89 0.56 1.48 73 68 0.7483 1 80 0.54 1.4379 76 0.7348 84 0.49 1.3080 77 0.7000 89 0.56 1.48 7471 0.7483 1 80 0.54 1.4379 76 0.7348 84 0.49 1.3080 77 0.7000 89 0.56 1.48 75 71 0.7483 1 80 0.54 1.4380 76 0.7348 84 0.49 1.3080 77 0.7000 89 0.56 1.48 75 72 0.7483 2 80 0.57 1.5180 76 0.7550 84 0.56 1.4880 77 0.7483 89 0.52 1.38 75 72 0.7211 2 80 0.57 1.5180 76 0.7550 84 0.56 1.4880 77 0.7483 89 0.52 1.38 75 72 0.7211 2 80 0.57 1.5180 76 0.7550 84 0.56 1.4880 77 0.7483 89 0.52 1.38 75 72 0.7211 2 80 0.57 1.5180 75 0.7550 84 0.56 1.4880 77 0.7483 89 0.52 1.38 75 73 0.7211 2 80 0.57 1.5180 76 0.7550 84 0.56 1.4880 77 0.7483 89 0.52 1.38 75 73 0.7211 2 80 0.57 1.5180 76 0.7550 84 0.56 1.4880 77 0.7483 89 0.52 1.38 7673 0.7211 3 80 0.66 1.7580 76 0.8124 84 0.66 1.75 80 77 0.8124 89 0.48 1.27 7673 0.6928 3 80 0.66 1.7580 76 0.8124 84 0.66 1.75 79 77 0.8124 89 0.48 1.27 7673 0.6928 3 80 0.66 1.7580 75 0.8124 84 0.66 1.75 79 77 0.8124 89 0.48 1.27 7673 0.6928 3 80 0.66 1.7580 76 0.8124 84 0.66 1.75 79 77 0.8124 89 0.48 1.27 7673 0.6928 3 80 0.66 1.7580 76 0.8124 84 0.66 1.75 78 77 0.8124 89 0.48 1.27 7673 0.6928 3 80 0.66 1.7579 76 0.8124 84 0.66 1.75 78 77 0.8124 89 0.48 1.27 7674 0.6928 4 80 0.58 1.5479 76 0.7616 84 0.48 1.27 78 77 0.6928 89 0.46 1.22 7674 0.6782 4 80 0.58 1.5480 77 0.7616 84 0.48 1.27 78 77 0.6928 89 0.46 1.22 7674 0.6782 4 80 0.58 1.5480 77 0.7616 84 0.48 1.27 78 76 0.6928 89 0.46 1.22 7674 0.6782 4 80 0.58 1.5480 77 0.7616 84 0.48 1.27 78 76 0.6928 89 0.46 1.22 7674 0.6782 4 80 0.58 1.5480 77 0.7616 84 0.48 1.27 79 77 0.6928 89 0.46 1.22 77 74 0.6782 4 80 0.58 1.5480 77 0.7616 84 0.48 1.27 0.6928 89 0.46 1.22 77 74 0.6782 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 

### Average 83 0.55 1.467974 0.7407 85 0.53 1.4080770.7260 87 0.53 1.4076730.7254


## Laboratory	Data **Run	1 Run	2**  **Run	3** Filter	ID **Front	Half	Sample:** Filter	wt,	g Acetone	rinse	volume,	ml Acetone	wt,	g F.H.	Total,	g 0.0000 0.0000 0.0000 **Back	Half	Sample:** B.H.	Total,g **Acetone	Blank	Sample:** Acetone	blank	volume,	ml Acetone	Blank	weight,	g 0 0 0 Acetone	weight	gain,g 0.0000 0.0000 Acetone	Blank	concentration #DIV/0! #DIV/0! #DIV/0! 0.001%		of	Acetone	Blank	Weight #DIV/0! #DIV/0! #DIV/0! Weight	of	Sample	in	Acetone	Wash,	g #DIV/0! #DIV/0! #DIV/0! Corrected	Acetone	Blank	Value,	g #DIV/0! #DIV/0! #DIV/0! **(F.H.	Total+B.H.	Total-Blank):** Total,	g #DIV/0! #DIV/0! #DIV/0!

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# Test	Data	Summary	and	Calculations **ALCOA	Massena	-	East	Plant Line	1	Exhaust**  **Massena,	New	York**

**Parameter Run	1**  **Run	2 Run	3** 

Run	Date 30Apr13 30Apr13 01May13 Start/Stop	Time 1043/1501 1610/2026 0825/1230 Duration	of	Run,	Minutes 240 240 240 Ave.	Nozzle	Diameter,	inches 0.225 0.225 0.225 Pitot	Calibration	Factor,	CF 0.84 0.84 0.84 Meter	Gamma 1.005 1.005 1.005 Meter	Delta	H,	inches	of	H2O 1.67 1.67 1.67 Stack	Diameter,	inches 14 14 14 Rectangular	Width,	inches Rectangular	Length,	inches Stack	Area,	sq.ft. 1.07 1.07 1.07 Barometric	Pressure,	inches	of	Hg 30.2 30.2 30.37 Static	Pressure,	inches	of	H2O -7.7 -7.7 -7.9 Dry	Gas	Meter	Sample	Volume,	(VM)ft3

Initial 288.383 453.132 615.536 Final 452.646 614.754 776.456 Difference 164.263 161.622 160.92 Ave.	Stack	Temperature,		Ts(F) 82.5 84.5 87.0 Ave.	Meter	Temperature,	Tm(F) 76.4 78.6 74.4 Ave.	Run	Delta	H,	inches	of	H2O 1.46 1.40 1.40 Ave.	Square	Root	of	Delta	P 0.7407 0.7260 0.7254 Moisture	Data Volume	of	water	collected,	mls 10 10 4 Silica	Gel,	grams 15.1 26.3 27.9 Total	Collected,	mls 25.1 36.3 31.9 ORSAT	Data

%O2 20.90 20.90 20.90 %CO2 0.00 0.00 0.00 %CO

**Calculations**
Vw(std),	scf	= 1.181 1.709 1.502 Vm(std),	dscf	= 164.593 161.273 162.725 Bws= 0.007 0.010 0.009 Md= 28.84 28.84 28.84 Ms= 28.76 28.72 28.74 Vs,	ft/sec	= 42.4 41.7 41.6 Qs,	acfm	= 2,722 2,675 2,671 Qs(std),	dscfm	= 2,605 2,542 2,543 Isokinetic	Sampling	Rate,	% 101.9 102.4 103.2

**Where:**
Vw(std)	=	volume	of	water	vapor	in	gas,	standard	conditions	=	0.04707*Vlc Vm(std)	=	vol.	of	gas	sampled,	standard	conditions	=	17.647	x	Vm	x	gamma	x	[Pb	+	(dH/13.6)]/Tm(R) Bws	=		water	vapor	in	gas	stream,	proportion	by	volume	=	Vw(std)/(Vm(std)	+	Vw(std)) Md	=	molecular	weight	of	stack	gas,	dry	basis	=	(0.44	x%CO2)	+	(0.32	x%O2)	+	[0.28	x	(%N2	+	%CO)] Ms	=	molecular	weight	of	stack	gas,	wet	basis	=	[Md	x	(1-Bws)]	+	(18.0	x	Bws) Vs	=	stack	gas	velocity	=	85.49	x	Cp	x	(avg.	Sq.Rt.	dP)	x	[Sq.Rt.	(Ts(R))/(Ms	x	Ps)] Qs	=	stack	gas	flow	rate	=	Vs	x	As	x	60 Qs(std)	=	stack	gas	flow	rate,	standard	conditions	=	Qs	x	(1-Bws)	x	(528/(Ts(R))	x	(Ps/29.92) Isokinetic	sampling	rate	=	{(Ts(R))	x	[(0.00267	x	Vlc)	+	(Vm(std)/17.647)]	x	100}/(Time	x	vs	x	Ps	x	An	x60)

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## Hexavalent	Chromium	Results	Summary **ALCOA	Massena	-	East	Plant Line	1	Exhaust**  **Massena,	New	York**

**Run	1 Run	2**  **Run	3 Average** 



### Parameter: (Total	ug)(mg/dscm)(g/min) (lb/hr) (Total	ug)(mg/dscm)(g/min) (lb/hr) (Total	ug)(mg/dscm)(g/min) (lb/hr) (mg/dscm)(g/min) (lb/hr)

Hexavalent	Chromium 0.2 4.29E-05 3.17E-064.19E-07 0.7 1.53E-04 1.10E-051.46E-06 <0.3 <6.51E-05 <4.69E-06####### 8.71E-056.30E-068.33E-07



### Where:

Total	ug=	Total	sample	collected,	micrograms

mg/dscm	=	grams	of	pollutant	per	dry	standard	cubic	meter	=	(ug/dscf	)	x	(35.314	cubic	feet/cubic	meter)	x	(1	mg/1.00E+03	ug) g/min	=	grams	per	minute,	emission	rate	=	ug/dscf		x		DSCFM	x	1	gram/1.00E+06	ug lb/hr	=	pounds	per	hour	emission	rate	=	g/min	x	60	min/hour/(453.59	g/lb)

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