Document npw6q7Laa35g1Q5M03JkZY23X
Minnkota Power Cooperative, Inc Milton R Young Station Unt 1 and 2 A14559 013
Rev 2 May 22, 2024
3.EPA COST VALIDITY
3.1.1.Current Hg Compliance Cost Effectiveness (4.0 lb/TBtu)
With respect to MRY, EPA estimated the cost effectiveness forcurrent 2021 Hg emissions is shown below in an excerpt from Table 12 in 2023 Technology Review for the Coal - and OH-Fired EGU Source Category (Docket ID. No: EPA-HQ-OAR-2018- 0794).
TABLE. 12 IS-I IMATED COST-EFFECTIVENESS FOR CON FROL O1' MERCURY fN 2021 NI' LIGNITE-IIRED EGUS
Plant Name
P51 unIrLd
1-151 ulg fflet
Ft/ FI ,
2021 21/ 50
Ist}IR OW
Asg. sm-lerni
/1/15/5//5 (16,517/14411
/Lag Sarheni
Snrhpnf (-nit S. L1/1
Sr.t.00d ',Lath,: 1
4.1
1
SO S ;
(Lida clan' Olds lfdlnn R 6L.,;>1.
1-5N
41 R
4_ -
'a 1
7
7') 6 55 1 53
4' 11 55 11 45 0
50.97 ...21;
50 S5
Vi, 1111 Ma6ff r),1
1.2/01.
5
rr
4 6'
101; 4
19 II
SO '55 50.83
Major
16,,r 7
1-F
.4 6 5
707 0
SO.R1
Re4
Ft
Eh:. Halls I re,-fartg ;16s. 2
4k1
:92"
7.09
2 6
fr
50.76
.4
ir
50.76
1.lar/In r ..rke
f 1- Sri-
,I F, :2
L34
r1 i
: 0
M 31/ f>
S.' Is St , 9^
Oak frr....c '
I-1-
: I5.5
154'
I - If
SI 15
San MIFuel 1 M.Inll, I.,11 2
]:S14.
,4.f,_
346 6
" '
59 5
SO V'
1-501
S 15 ;Li i . i fL
1'1 '
3 0
'17 0
SO 9'
11.0161 f dkv 1
I tirl
" !..
;', fq
% o
1-4 I
% 4
. AL11,i.cu..L, ar: ...0Anon f Ill- go. anal. N.., lh, E E:\ a,.rned the ...ILLa...c. COI'A are Cc ,arne annuall,, d,
. lloblal sop/5 a. /1.4, 5c lhal Wtry ,,..,,Jed t, the LP A In the 2,):: C A:1 sect.on :14 Ilmorcrw,orl su...
, 7.6 0 ihe ,orhent cr,i t.
SO 9'
F5121321
S6rhent r
Fsi 2011
Snrhrni
e
FA/ 2021
e
c
2021
L . L., ff.' "7;62 659
7/./gx /RI 75 9 [72 259 6/0 76'
R3 31 Sul
I'M iri.: 4 ; s.'50 3.1F0 ...7i4 1 04,5 760
9',65d S7'90,69, / S2h 5 ..Y.q 514-'-RSn71:0 S134 7950 514:,?r,1 51)' . -',4 51)9 7 54 S75,13/ S3in "<7 514, II, !, S465 51K, 5'k'fifiLl 5! .014 ...'2
59.i r.SJ . >.: ', "I
S'796 694 . 59, l4 ;
S21. 5 ,V19
56,5 6;
5147 :67
R',R44
S``'7 ,41I, C154 26r,
S; 046 Si cl5
5145,2h1 5197 296 5199 754
51 'IQ 52 195 s2 ILL
$3Lil 'CC Slii -M, 54115 ,,,9 S - 255 660 SI ill 4 m":
5f, 13,J7 5: Mr 5 - 5 01 . Sh.;, ^' .
Response: Flaws in EPA's cost analysis for current compliance: Est. Hg In (lb) & Hg Out (lb) o Table 12 would appear to have flipped MRY Unit 1 and Unit 2 in the table, utilizing the higher MRY Unit 2 operating conditions (heat input, hg loading, etc.) for the smaller sized Unit 1 and vice versa
PAC Injection Rate: Table 12 Avg. Sorbent (lb/hr) -- EPA noted MRY Unit 1: 19.0 lb/hr and MRY Unit 2: 43.0 lb/hr to achieve controlled Hg rate of 3 2 lbfTBtu Minnkota PAC sorbent injection rates to achieve controlled Hg rate of 3.85 lb/TBtu for MRY Unit 1 is expected to be 86 lb/hr and for MRY Unit 2 is 158 lb/hr.
Cost of PAC 0 Table 12 non-brominated PAC sorbent cost-- EPA assumed a cost of $O.8311b. In the 2024 Technical Memo, EPA adjusted this cost down to $0.80/lb Based on MRY operational costs for 2023, non -brominated PAC sorbent cost is $O.86/lb. Based on MRY operational costs for 2023, actual non -brominated PAC costs for achieving current compliance with 4.0 lb/TBtu indicated MRY Unit 1: $119,813 and MAY Unit 2: $329,328
Mercury Testing Results for the MATS Residual Risk and Technology Review
Sierra Club FOIA 2025-EPA-04883
10 Si --gr -vt & Lulu/ay
ED_018388_00000327-00024
SC_EVERSPLIT0006333