# STATE OF CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION

STATE OF CONNECTICUT AND ALGONQUIN GAS TRANSMISSION COMPANY TRADING AGREEMENT AND ORDER NO. 8123A MODIFICATION NO. 1

TRADING AGREEMENT AND ORDER MODTFTCAnON Tn the matter ofa Trading Agreement and Orderbetween the CommissionerofEnvironmental Protection ("Commissioner") and Algonquin Gas Transmission Company ("Algonquin"). WHEREAS, the Commissioner and Algonquin, having agreed to the terms and conditions set forth in Trading Agreement and Order No. 8123A issued on April 30, 2003, do now, by mutual agreement, modify Trading Agreement and Order No. 8123A as follows:


### 1. Delete the dates May I, 2007, April 30, 2007, and April 31, 2007 and substitute therefor May I, 2009, in paragraphs A.6., C.

### t., C.2., C.3.a., and C.3.b. 2. Delete paragraph A.5. in its entirety and substitute the following therefor: Emission testing performed on the dates indicated in Table I, resulted in NOx emission rates as follows: 

### Table 1 Emission Unit Fuel Heat Input FLER Baseline Allowable Date of Next MMBtu/hr LbsIMMBtu Emission rale Rate Emission Emission Lbs/MMBtu LbslMMBtu Test Test Due C-7 Natural 46 .145 .410 .170 1126/05 1126110 gas 3. Delete paragraph A.9. and Table 2 in its entirety. 4. Delete paragraph B.I. and Table 3 in its entirety, and substitute the following therefore: The Commissioner, in accordance with the provisions ofthis Trading Agreement and Order, pursuant to Section 22a-174-22(d)(3) oflhe Regulations, will allow Algonquin and approved sources within Connecticut to use the NOx DERCs referenced in Table 2 ofthis Trading Agreement and Order for purposes of

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### 2 Trading Agreement and Order No. 8123A Modification No.1 compliance under Section 22a-l74-22G) ofthe Regulations to achieve a portion ofthe nitrogen oxide emission reductions required by Section 22a-174-22 ofthe Regulations. DERC creation serial numbers assigned bythe Department of Environmental Protection ("Department") to these approved reductions are provided in Table 2 ofthis Trading Agreement and Order: 

### Table2 Year of Ozone season DERC Ozone Non-Ozone season DERC Non- Expiration Generadon serial numbers serial numbers Ozone Date 1997-1999 Not assigned 7 Not assigned 52 12/31/04 2000 N/A 0 CTOO/8123(DC)Noxnoz1-19 19 12/31/05 2001 eTO118123(DC)Noxozl**~2** 2 CTOI/8123(DC)Noxnozl-14 14 12/31/06 2002 CT02/8123(DC)Noxoz1-6 6 CT02/S123(DC)Noxnoz1-16 16 12/3]107
5. Delete paragraph C.l

### O. and substitute the following therefore: Extension. No laterthatMay 1, 2009, with respect to the turbine, Algonquin shalt comply with the requirements ofSection 22a-t74-22(d)(2)(A) ofthe Regulations and amendments thereto. There is no assurance that the Commissionerwill grant a written extension ofthis Trading Agreement and Order. 6. Delete paragraph C.13. and substitute the following therefore: Definitions. As used in this Trading Agreement and Order, "Approved DERCs" are those for which the Commissionerhas provided written authorization for use in compliance with Section 22a-174-22 ofthe Regulations: "Commissioner" means the Commissioneror a representative ofthe Commissioner; "Non-olone season" means the period from October t through April 30 in any given calendar year; "Ozone season" means the period May t through September 30 in anygiven calendaryear. 7. Delete paragraph C.14. and substitute the following therefore: Dates. The date ofissuance ofthis Trading Agreement and Order is the date the Trading Agreement and Orderis deposited in the U.S. mail orpersonally delivered, whichever is earlier. The date ofsubmission to the Commissionerof any document required bythis Trading Agreement and Order shall be the date such document is received bythe Commissioner. The date ofany notice by the Commissionerunder this Trading Agreement and Order, including but not limited to notice ofapproval or disapproval ofanydocument orother action, shall be the date such notice is deposited in the U.S. mail or is personally delivered, whichever is earlier. Except as otherwise specified in this Trading Agreement and Order, theAlgonquin Gas Transmission Company 3 Trading Agreement and Order No. 8123A Modification No. I word "day" as used in this Trading Agreement and Ordermeans calendarday. Any document or action which is required by this Trading Agreement and Orderto be submitted orperformed by a date which falls on a Saturday, Sunday, or a Connecticut or federal holiday shall be submitted orperformed by the next day which is not a Saturday, Sunday, or Connecticutor federal holiday. 8. Delete the word "individual" and substitute therefore the word "Section" in Paragraph C.26. 9. Delete the name "Mr. Michael lafleur" from paragraph C.27.
All other terms and conditions ofTrading Agreement and Orderno. 8123A issued by the Commissioner acting under Chapter446c, Sections 22a-6, 22a-1 71 , 22a-l74, 22a-1 76, and 22a177 ofthe Connecticut General Statutes shall remain in effect.



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Algonquin 

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### 4 Trading Agreement and Order No. 8123A Modification No. I Algonquin hereby consents to the entry ofthis modification to the Trading Agreement and Order without further notice. Algonquin Gas Transmission Company Signature:

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amodification ofan Order ofthe CommissionerofEnvironmental Protection.

Date

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Certified Document No. 7002 2030 0006 5680 7468