**Exhibit 10.1**

***Big Sioux***

*Community Water System, Inc.*

Box 158 • EGAN, SOUTH DAKOTA57024 • (605) 997-2098

Addendum to Water PurchaseAgreement dated June 2nd, 2000

THIS addendum to the existing WATER AGREEMENT made andentered into this 28th day of February, 2007, by and between BigSioux Community Water Systems, Inc., a South Dakota corporation, of RuralRoute, Egan, South Dakota, hereinafter referred to as “Big Sioux” and DakotaEthanol LLC., a South Dakota corporation, of Wentworth, South Dakota, hereinafterreferred to as “Dakota Ethanol,” as follows:

WHEREAS, Big Sioux is organized and exists for thepurpose of constructing and operating a water distribution system within adesignated area in which the Ethanol Plan is located; and

WHEREAS, Dakota Ethanol desires to purchase raw waterfrom Big Sioux pumped from the Skunk Creek Aquifer, Lake County, and deriveboth its domestic and fire protection from a 500,000 gallon elevated tank atthe plant site

WHEREAS, Big Sioux is desirous of continuing to sellwater to Dakota Ethanol,

NOW THEREFORE, in consideration of the terms,conditions, and mutual covenants herein contained, the parties agree asfollows:

Allterms and conditions of the agreement between the parties dated June 2, 2000,shall be extended and existing parameters of service remain the same except:

1.     Non-potablewater may be furnished from multiple wells finished in the Skunk Creek aquifer.

2.     For thecost of water flowing through the master meter located at the Brant facility,Dakota Ethanol shall pay fifty-five (55) cents per thousand gallonsmetered.  This price may be altered basedon the criteria set forth in the original agreement.

3.     The termof this contract shall be for a period of six (6) months beginning January 1st, 2007.  The parties agree to extend this agreementfor such additional terms and conditions as the parties may mutually agree.

4.     Given thewater usage history of Dakota Ethanol, and the probability that Dakota Ethanolwill continue to exceed the parameters of water supply outlined by thisagreement, Big Sioux 

----

does not guarantee that the water supply parametersoutlined in this contract can continue to be met during the period covered bythis contract.  Dakota Ethanol herebyagrees to indemnify and hold Big Sioux harmless from and against any and allclaims, actions and causes of action of any kind or nature whatsoever(including costs and reasonable attorney fees) arising out of or related to BigSioux’s obligations to provide specific well water flows pursuant to thisAgreement.  Without limiting thegenerality of the foregoing, Dakota Ethanol specifically agrees that it willindemnify and hold Big Sioux harmless from and against any claims relating topersonal injury, financial loss or property damage relating to a failure of BigSioux to meet specific well water flows.

IN WITNESS WHEREOF, the parties have hereunto executedthis agreement by and through their authorized officers, on the date firstabove written.
|                       | BIG SIOUX  COMMUNITY WATER SYSTEM, INC. |
|-----------------------|-----------------------------------------|
|                  |                                    |
|                  | By:                                     | /s/ Thomas  Kansanback |
|                  |                                    | Its Vice  Chairman |
|                  |                                    |
|                  |                                    |
| Attest:               |                                    |
|                  |                                    |
|                  |                                    |
|  /s/ Andy  Groos |                                    |
| Its Secretary         |                                    |
|                  |                                    |
|                  |                                    |
|                  | DAKOTA ETHANOL,  LLC                    |
|                  |                                    |
|                  | By:                                     |  /s/ Brian  Woldt |
|                  |                                    | Its Chairman |
|                  |                                    |
|                  |                                    |
|                  |                                    |
| Attest:               |                                    |
|                  |                                    |
|                  |                                    |
| /s/ Dale  Thompson    |                                    |
| Its Secretary         |                                    |

 

----