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·-----"7"--.-:. - - . . 

/ 

[fJPq NUNNKOiA'POWER 

COOPERATIVE, I~C. P,o. Bolt 127, Ctntc:r/ NO !>8S30-0127 PhOne: (701) 794-871 1 

,wLTON R. YOUNG S1~nON 

November 20, 1995 

Mr. Dana Mount. Director 


Division of Environmentai Engineering 


North Dakota Department ,of Health 


PO Box 5520 

BiSmarck,· North Dakota 58502-5520 

Subject, Permit To Operate No. F76~09 

Permit Revisions 


Dear Mr. fv10lrt . . ' 

A:syou are aware, MiftonR. Young ' Station, Unit 2 cannot meet Ihe No. emlssion~iintt ¢ ­

3620 IbJhr in·the current P~imit.. This emission limit was not ·added our Permit until . 

1985. This Iimitation .of 3820 rbJhr was apparently based upon the original Permit to 

construe!. application for Unit It was not Minnkoti Power's Intentto have..this varue 

uti1ized in the Permit when'no applicable standard eXis1oo. TIle O.80-tbJmm8TU . 

emission limit required bY,40 CFR 6O ·subpart 0 is not appllcable.to thiS Unit. As the NO. 

errnssionshave not i~sed' since the plant began operation, the e6mination of this 

restriction wiD not have any el'fed upon the PSD baseline in North Dakota. Therefore, 

based upon the above; we request that this Permit restric:6on be etirriinated • ./ 

There:.fi!§.C2..eXi,st other P~mn~ dis~PC:I~e~~lch we pelieve,:.sho'!ld be correCt:~ ~~ 

.time.. The present Pennit to operate lists.lloiL1 as:235 MW, Z,5OO1iiinBT01tY fieat . 

input and'1 ,714 mmfblhr of steam. . ..unit..2 is listed as 4iO MYY., 4,696 mmBTUItv heat' . 

input aoo 3,200 lb.1hr of steam. ~e 2f!3_nomina.Lf:\~~1Q£.~a.nd..dQ..ru~L, . reflect the maximum c.a~cme:s o11he units. The foDoWing information was measured'on 

"our"Continuous efTllSsion monitors dliring~urge tests during'the. p8st year: .. 

HEAT INPUT GROSS 


.DATE (mmBTUlhrj 


UNIT 1 5-30-95 3001.6 


UNIT2 5-26-95 6261.6 

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......:. 

MEGAWATTS' 

.277' 

517 
· 0 / 02/2007 13:09 fAX 3032369514 

.; 

Mr. Dana Mount 


Page 2 


November 20, 1995 


There has b€'en no changes in the either the 1urbine or the boiler in Unit 1. In Unit 2­

changes h2v€ been made to increase the boiler and turbine efficiencies.. Thes.e 

changes have not o':1anged the maximum heat input ~pability of Unit 2. They have 

a1Jowed for increased electrlcal outputfrom the gBr.lerator and extended hOUrs of 

operation of the· boiter at higher 51eam loads prior to sCheduled outages.. 

As the desCriptions at the uniis c:oukj be vie~ as Permit restrictions and in ord.~ tQ 

_more C!fCUratety reflect the ~um cspabmt~ of tne-yIJits §s they were ~~i~ and; . 

o,m;n!!y_are resfu~;·f~~J?Ut; alla ar:e~~with to ge;;efjtQr .. .. output, we _ 'that Pif6e revised a~rqJ.ogty. We CJ~ believe that the IbJhr of 

-steam should be efiminated·from the Permit 8B It ls hfghly dependent steam· pressure, .' 

turbine backpressure, unit load, etc. . 

. . 

There appears to be 8 contrJCt between the Pemit .condltlons for opacity; Par~ B~1) • .. 

and the nJles. The Permit reE1rlctions state that:the limitations apply at alf titnes. ·. . 

However. the rules (NDAC 33-15-03,-04,4) ~i:Ie for exce.ptions as dOOS·4Q ern 60, . 

Subpart O. To cb:.rify this, 800 make the Permit reStriction consisteot:With the .rules; we· 

ask thai the Phrase e-rhis stand~rd eppfle!l at aD·times..· be deleted from·the p.ermit. 

tf you have any questiOns, please contact KevIn Thomas or myself at· (701 )794-811"1~· 

Sincerely, 

MINNKOTA POWER G~PERATJVE, INC. 

. 	

E:~ John T.. Graves . . · Environmental Superintendent 

c:: File: .'01.012 

101.014 · 

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