Exhibit 2.(i)



                    ASSET PURCHASE AGREEMENT

                             BETWEEN

                  SUB-SURFACE CONSTRUCTION CO.

                               and

                          STEWART KNIFF

                               and

                  SEMCO ENERGY CONSTRUCTION CO.
                     ______________________


                      Dated August 9, 1997







 1.  Assets Purchased. . . . . . . . . . . . . . . . . .     3
 2.  Liabilities Assumed.  . . . . . . . . . . . . . . .     5
 3.  Purchase Price for Purchased Assets.  . . . . . . .     5
 4.  Related Agreements. . . . . . . . . . . . . . . . .     6
 5.  Delivery Free of Encumbrances.  . . . . . . . . . .     7
 6.  Preclosing Actions. . . . . . . . . . . . . . . . .     7
 7.  Conditions Precedent to Buyer's Obligations.  . . .     9 
 8.  Conditions Precedent to Seller Parties' 
     Obligations.  . . . . . . . . . . . . . . . . . . .    11
 9.  Closing Matters.  . . . . . . . . . . . . . . . . .    12
10.  Seller Parties' Representations and Warranties. . .    13
11.  Buyer's Representations and Warranties. . . . . . .    26
12.  Employees.  . . . . . . . . . . . . . . . . . . . .    27
13.  Postclosing Receipts. . . . . . . . . . . . . . . .    29
14.  Indemnification.  . . . . . . . . . . . . . . . . .    29
15.  Expenses. . . . . . . . . . . . . . . . . . . . . .    32
16.  Risk of Loss. . . . . . . . . . . . . . . . . . . .    32
17.  Seller's Name.  . . . . . . . . . . . . . . . . . .    32 
18.  Termination.  . . . . . . . . . . . . . . . . . . .    33
19.  Miscellaneous Provisions. . . . . . . . . . . . . .    33

                    ASSET PURCHASE AGREEMENT

       THIS AGREEMENT is made on August 9, 1997, between 
Sub-Surface Construction Company, a Michigan corporation with its 
principal place of business at 5959 Comstock Park Drive, Comstock 
Park, Michigan  ("Seller"); Mr. Stewart Kniff, whose address is 
Norton Shores, Michigan ("Kniff"); and  SEMCO Energy Construction 
Co., a Michigan corporation ("Buyer").  Seller and Kniff are 
sometimes  referred to together as  "Seller Parties".


                           BACKGROUND

A.     Seller is engaged in the construction business 
       ("Business") at the locations shown on Schedule 10.32 (the 
       "Premises"). Buyer desires to purchase, and Seller desires 
       to sell to Buyer, the Purchased Assets (as defined in 
       Section 1) on the terms and subject to the conditions of 
       this Agreement.  As part of this transaction (i) Union 
       Equipment, Inc., a Michigan corporation ("Union 
       Equipment") and Southeastern Utility Company, Inc., a 
       Michigan Corporation ("Southeastern Utility"), both of the 
       same address as Seller, have agreed to sell to Buyer the 
       leased equipment used by Seller in the Business ("Leased 
       Equipment") pursuant to those certain Leased Equipment 
       Purchase Agreements of even date herewith, and (ii) 
       Comstock Properties, Inc., a Michigan corporation 
       ("Comstock"), Union Equipment, Southeastern Utility and 
       U.P. Investments, L.L.C., a Michigan Limited Liability 
       Company ("UP") have agreed to lease to Buyer the real 
       property used by Seller in the Business ("Leased 
       Premises").  Comstock, Union Equipment, Southeastern 
       Utility and UP are sometimes referred to as "Lessors".

B.     Stewart Kniff is the sole shareholder of Seller.  As a 
       condition to Buyer's willingness to purchase the Purchased 
       Assets from Seller, Kniff has agreed to provide certain 
       consulting services to Buyer pursuant to a Consulting 
       Agreement substantially in the form attached as Exhibit A 
       (the "Consulting Agreement").

C.     As a condition to Buyer's willingness to purchase the 
       Purchased Assets from Seller, Kniff and certain other 
       parties have agreed not to compete with Buyer in the 
       conduct of the Business as provided in noncompetition 
       agreements in substantially the form attached as Exhibit B 
       (the "Noncompetition Agreements").

D.     Also as a condition to Buyer's willingness to purchase the 
       Purchased Assets from Seller, Kniff and certain other 
       parties have agreed to provide a Release substantially in 
       the form attached as Exhibit C.


                               -2-

                           AGREEMENTS

       NOW, THEREFORE, in consideration of the Background and the 
terms and conditions set forth in this Agreement, each of the 
Seller Parties and Buyer agree as follows:

1.     Assets Purchased.
       At the Closing, Seller shall sell, assign, convey, 
       transfer, set over, and deliver to Buyer effective as of 
       the close of business on July 31, 1997, ("Effective Date")  
       all of the assets, rights, and interests of every 
       conceivable kind or character whatsoever, whether tangible 
       or intangible, that on the Closing Date are owned by 
       Seller or in which Seller has an interest of any kind 
       (excluding, however, those assets specifically identified 
       on attached Schedule 1).  These include, without 
       limitation, the following, (collectively, the "Purchased 
       Assets"):
1.1    All equipment (as defined in the Uniform Commercial Code 
       of the State of Michigan, Act No. 174 of Michigan Public 
       Acts of 1962, as amended (the "UCC")), and, to the extent 
       not otherwise constituting equipment as defined above, all 
       other items of tangible personal property, in each case 
       whether or not capitalized on Seller's books (including, 
       without limitation, the items listed on Schedule 1.1) (the 
       "Personal Property").
1.2    All items possibly classified as "inventory".
1.3    All accounts, chattel paper, documents, and instruments 
       (all as defined in the UCC), including all accrued 
       interest receivable and also any security Seller holds for 
       the payment thereof (including, without limitation, the 
       items described on Schedule 1.3) as of the Effective Date 
       (the "Receivables") and all of Seller's general 
       intangibles (as defined in the UCC) and, to the extent not 
       otherwise constituting general intangibles as defined 
       above, any interest of Seller in any and all claims by 
       Seller against any other person, whether now accrued or 
       later to accrue, contingent or otherwise, known or 
       unknown, including, but not limited to, all rights under 
       express or implied warranties from suppliers (except as 
       they may pertain to Seller's liabilities other than 
       Assumed Liabilities), claims for collection or indemnity, 
       claims in bankruptcy, and choses in action.
1.4    All cash, cash equivalents, and amounts held on deposit in 
       all savings, checking, money market, investment, and other 
       similar accounts (including, without limitation, the 
       accounts listed on Schedule 1.4).






                               -3-

1.5    All Seller's right, title, benefit, and interest in and to 
       inventions, discoveries, improvements, designs, 
       prototypes, trade secrets, manufacturing and engineering 
       drawings, process sheets, specifications, bills of 
       material, formulae and secret and confidential processes, 
       know-how, technology, and other industrial property 
       (whether patentable or unpatentable) (the "Intellectual 
       Property") to the extent not otherwise included in this 
       Section 1 (including, without limitation, the items listed 
       on Schedule 1.5).
1.6    The full benefit of (a) any and all contracts between 
       Seller and its customers covering the rendition by Seller 
       of Business service by Seller and including all deposits, 
       progress payments, and credits (including, without 
       limitation, those items listed on Schedule 1.6); (b) the 
       purchase orders listed on Schedule 1.6 placed by Seller 
       prior to the Effective Date that have not been completely 
       performed before the Effective Date, covering Seller's 
       purchase of inventory, supplies, or materials in the 
       ordinary course of business; (c) the leases of personal 
       property and other agreements listed in Schedule 1.6; and 
       (d) all policies of insurance and rights to make claims 
       and other rights thereunder listed on Schedule 10.31 (the 
       "Contracts and Commitments"). 
1.7    All records and lists that pertain directly or indirectly, 
       in whole or in part, to any one or more of the following: 
       the Seller's customers, suppliers, advertising, 
       promotional material, sales, services, delivery, internal 
       organization, employees, and/or operations.
1.8    All security deposits, prepaid expenses, and similar items 
       reflected in the latest of the Financial Statements of 
       Seller referred to in Section 10.7, in the amount accrued 
       as of the Effective Date. 
1.9    All transferable local, state, and federal franchises, 
       licenses, bonds, permits, and similar items pertaining to 
       the Business and/or the Purchased Assets (including, 
       without limitation, the items described in Schedule 10.6) 
       (the "Permits").
1.10   The Business conducted by Seller as a going concern, 
       including any and all goodwill, telephone and FAX numbers, 
       yellow-page advertisements, and Seller's right to use the 
       name Sub-Surface Construction Company and all related 
       names and derivations.
1.11   Buyer agrees to adopt the Sub-Surface Construction Company
       Profit-Sharing Retirement Plan ("the Profit-Sharing Plan") 
       and Trust Agreement ("the Profit-Sharing Trust") and 
       assume the role of plan sponsor, and to adopt and continue 
       those benefit plans and obligations described in Schedule 
       10.12.  Buyer retains the right to modify all benefit 
       plans to provide substantially equivalent benefits under 
       substitute plans.  The Trustees and all other plan 
       officials shall resign at Closing and shall be replaced by 
       Buyer. 

                               -4-

Seller shall update all Schedules described in this Section 1 as 
of the Closing Date. 

2.     Liabilities Assumed.
       Seller agrees that Buyer assumes no liabilities of Seller,
       whether accrued, absolute, contingent, known, unknown, or 
       otherwise, except for the following, which are referred to
       hereinafter collectively as "Assumed Liabilities":
       (a)     Those trade payables and other liabilities 
               incurred in the ordinary course of business to be 
               reflected on the Closing Balance Sheet as of the 
               Effective Date.  The total amount of liabilities 
               assumed by Buyer under this paragraph 2(a) shall 
               not exceed $2,750,000.
       (b)     Any executory obligations of Seller's continued 
               performance arising in the ordinary course of 
               business that become performable or payable on or 
               after the Effective Date  under the following: 
               (i)     Contracts and Commitments;
               (ii)    Those benefit plans described in Schedule 
                       10.12; 
               (iii)   The collective bargaining agreements 
                       specified in Schedule 10.13; and 
               (iv)    The real property leases specified in 
                       Schedule 10.32, as amended in accordance 
                       with Exhibit E .
       Without limitation of the foregoing, Buyer does not assume 
       any of the following:
       (i)     Any liabilities or obligations of Seller Parties 
               or predecessors, including, without limitation, 
               costs of cleanup, containment or other 
               remediation, arising from or under any 
               Environmental Law (as defined in Section 10.22) 
               and arising out of or relating to the operation of 
               the business of Seller Parties or the ownership, 
               operation or conditions at any time prior to the 
               Closing Date of the Leased Premises, Leased 
               Equipment, Purchased Assets or any other 
               properties and assets in which Seller Parties or 
               either of them has had an interest or use of any 
               kind; 
       (ii)    Liabilities of Seller Parties for Federal Income 
               Tax, or 
       (iii)   Liabilities of Seller Parties for Michigan Single 
               Business Tax. 

3.     Purchase Price for Purchased Assets.
3.1    The Purchase Price.
       The purchase price to be paid by Buyer to Seller for the 
       Purchased Assets (the "Purchase Price") shall, in addition 
       to the Assumed Liabilities, be $13,400,000. 


                               -5-

3.2    Payment of Purchase Price. 
       Buyer shall pay the Purchase Price on the Closing Date as 
       follows: 
       (a)     Buyer shall wire transfer funds in the amount of 
               $11,860,000 in accordance with Seller's 
               instructions. 
       (b)     Escrow.  Kniff, Buyer and the Escrow Agent shall 
               enter into an Escrow Agreement substantially in 
               the form of Exhibit D hereto, and shall place 
               $1,540,000 into escrow with the Escrow Agent under 
               the terms of the Escrow Agreement. 
3.3    Allocation of Purchase Price. 
       The Purchase Price shall be allocated among the Purchased 
       Assets in accordance with the  preliminary allocation 
       shown on attached Schedule 3.3 or such other allocation as 
       Buyer and Seller may agree upon on or prior to the 
       completion of the Closing Audit.  Buyer and Seller agree 
       to execute and deliver on or prior to completion of the 
       Closing Audit duplicate IRS Forms 8594, with an allocation 
       of the Purchase Price in accordance with this Section 3.3 
       and otherwise acceptable to Buyer and Seller, and to file 
       all other returns and reports in a manner consistent with 
       the allocations in this Section 3.3. 

4.     Related Agreements. 
       The agreements described in this Section 4 are sometimes 
       referred to as the "Related Agreements". 
4.1    Consulting Agreement and Noncompetition Agreements. 
       At the Closing, (a) Kniff shall execute as Utility 
       Construction Consultants, L.L.C. and deliver to Buyer the 
       Consulting Agreement substantially in the form of Exhibit 
       A and (b) Kniff and the following persons shall execute 
       and deliver to Buyer the Noncompetition Agreements 
       substantially in the form of Exhibit B: 
                         Gerald Horton 
                         Andrew Edwards 
4.2    Releases. 
       At the Closing, Stewart Kniff and the following persons 
       shall execute and deliver to Buyer the Releases 
       substantially in the form of Exhibit C: 
                         Lenore M. Kniff 
                         Gerald Horton
                         Brian Kniff
                         Michael Guthrie
4.3    Leases.  
       At the Closing,  Lessors and Buyer shall  execute the 
       Lease Amendments substantially in the form of Exhibit E.
4.4    Leased Equipment. 
       At the Closing, Union Equipment and Southeastern Utility 
       shall transfer to Buyer the Leased Equipment as listed on 
       Schedule 1.11 in accordance with the Leased Equipment 
       Purchase Agreements. 

                               -6-

5.     Delivery Free of Encumbrances. 
       Seller shall deliver and Kniff shall cause Union Equipment 
       and Southeastern Utility to deliver good title to the 
       Purchased Assets and Leased Equipment free and clear of 
       all mortgages, liens, claims, demands, charges, options, 
       equity interests, leases, tenancies, easements, pledges, 
       security interests, and other encumbrances 
       ("Encumbrances"). 

6.     Preclosing Actions. 
       Before the Closing:
6.1    Conduct of Business. 
       Seller Parties shall carry on and conduct the Business 
       only in the ordinary course consistent with past 
       practices, without any change in the policies, practices, 
       and methods that Seller pursued before the date of this 
       Agreement.  Seller Parties will use their best efforts to 
       preserve the Business organization intact; to preserve the 
       relationships with Seller's customers, suppliers, and 
       others having business dealings with it; and to preserve 
       the services of Seller's employees, agents, and 
       representatives.  Without limitation of the foregoing, (a) 
       Seller Parties shall not undertake any action without the 
       prior written consent of Buyer that, if taken before the 
       date of this Agreement, would have been required to be 
       disclosed on Schedule 10.9; and (b) Seller Parties will 
       not take action or refrain from taking action that would 
       result in any change in the Purchased Assets or Assumed 
       Liabilities, other than in the ordinary course of business 
       consistent with past practices, and except as provided in 
       Section 6.4.  Seller will consult with Buyer on all 
       operating matters and accede to Buyer's reasonable 
       operating instructions in order to provide Buyer with 
       control of the business prior to the Closing. 
6.2    Buyer's Access. 
       From the date of this Agreement through the Closing, 
       Seller Parties shall permit Buyer reasonable access to the 
       Seller and the Business. 
6.3    Accuracy of Representations and Warranties and 
       Satisfaction of Conditions. 
       Seller Parties will immediately advise Buyer in writing if 
       (a) any of Seller Parties' representations or warranties 
       are untrue or incorrect in any material respect or (b) 
       Seller Parties become aware of the occurrence of any event 
       or of any state of facts that results in any of the 
       representations and warranties of Seller Parties being 
       untrue or incorrect in any material respect as if Seller 
       Parties were then making them.  Seller Parties will not 
       take any action, or omit to take any action, that would 
       result in any of Seller Parties' representations and 
       warranties set forth in this Agreement being untrue or 
       incorrect as of the Closing Date.  Seller Parties will use 
       
                               -7-

       their best efforts to cause all conditions within their 
       control that are set forth in Section 7 to be satisfied as 
       promptly as practicable under the circumstances. 

6.4    Dividend to Kniff
       (a)     Seller has declared a dividend payable to Kniff, 
               on or before November 15, 1997 ("Kniff Dividend"), 
               of up to the lesser of (i) $3,500,000 or (ii) the 
               Net Working Capital (as defined below) as of the 
               Effective Date. 
       (b)     Notwithstanding the provisions of Section 2 of 
               this Agreement, Buyer shall assume the obligation 
               to pay the Kniff Dividend which shall be paid out 
               of the Purchased Assets in accordance with 
               Sub-Paragraph (e) below. 
       (c)     Seller shall cause Arthur Andersen LLP (the 
               "Closing Auditor") to prepare a Closing Audit 
               ("Closing Audit"), which shall consist of a 
               balance sheet as of the Effective  Date (the 
               "Closing Balance Sheet").  The Closing Balance 
               Sheet shall (i) contain line items to the extent 
               applicable substantially consistent with the line 
               items in Seller's Balance Sheet dated June 30, 
               1997 (a true copy of which is contained in 
               attached Schedule 10.7); and (ii) be prepared in 
               accordance with GAAP. 
       (d)     In preparing the Closing Audit, the Closing 
               Auditor shall conduct the examination of Seller in 
               accordance with generally accepted auditing 
               standards.  The Closing Auditor shall use its best 
               efforts to complete the Closing Audit not later 
               than 60 days after the Closing Date.  The Closing 
               Balance Sheet shall be delivered to Buyer and 
               Seller immediately upon its completion, together 
               with (i) the Closing Auditor's opinion that the 
               Closing Balance Sheet was prepared in accordance 
               with this Section 3.3, (ii) a calculation of the 
               Net Working Capital, and (iii) the Closing 
               Auditor's work papers.  Seller and Buyer shall 
               have 15 days after receiving the Closing Balance 
               Sheet, the calculation of the Net Working Capital, 
               and the Closing Auditor's work papers to deliver a 
               written notice to the other of any objections to 
               the Closing Balance Sheet and the calculation of 
               the Net Working Capital.  Any such notice of 
               objections shall be in writing and shall state, in 
               reasonable detail, the basis for each objection 
               and the amount of adjustment that the party giving 
               the notice believes is required.  If Buyer and 
               Seller cannot agree with respect to the Closing 
               Balance Sheet or the calculation of the Net 
               Working Capital within 15 days after the delivery 
               
                               -8-

               of a notice of objections or such later date as 
               may be agreed on by Buyer and Seller, the dispute 
               shall be resolved by arbitration in accordance 
               with Section 19.8, except that the arbitrator 
               shall be Cy Moore, the Managing Partner of BDO 
               Seidman, Grand Rapids, Michigan, or individuals in 
               the BDO Seidman organization appointed by Cy Moore 
               (the "Independent Accounting Firm").  Any items 
               not in dispute shall be deemed stipulated by Buyer 
               and Seller and shall not be determined by the 
               Independent Accounting Firm.  The determination of 
               the Independent Accounting Firm shall be binding 
               on and conclusive with regard to the matters it 
               determines.  All costs and expenses relating to 
               the services provided by the Independent 
               Accounting Firm shall be paid equally by Buyer and 
               Seller, notwithstanding the provisions of Section 
               19.8. 
       (e)     The amount of the Kniff Dividend shall be paid out 
               of the Purchased Assets within 90 days after the 
               Closing Date, provided the parties agree on the 
               calculation of Net Working Capital pursuant to 
               subparagraph (d) above.  If the parties do not 
               agree on the calculation of Net Working Capital, 
               the amount of the Kniff Dividend shall be paid out 
               of the Purchased Assets within 10 days after the 
               determination by the arbitrator as specified in 
               subparagraph (d) above. 
       (f)     The term Net Working Capital shall mean an amount 
               equal to the Current Assets minus the Current 
               Liabilities reflected on the Closing Balance 
               Sheet, without the Kniff Dividend being shown as a 
               Current Liability.  By way of example, the Net 
               Working Capital reflected in the June 30 Balance 
               Sheet is $3,052,000. 

7.     Conditions Precedent to Buyer's Obligations. 
       Buyer's obligation to consummate the transactions 
       contemplated by this Agreement is subject to the 
       fulfillment (or waiver by Buyer) before or at the Closing 
       of each of the following conditions: 
7.1    Accuracy of Representations and Warranties. 
       The representations and warranties of Seller Parties 
       contained in this Agreement and all related documents 
       shall be true and correct in all material respects at and 
       as of the Closing Date as though such representations and 
       warranties were made on that date, without giving effect 
       to any supplement or material additional disclosures by 
       Seller Parties. 




                               -9-

7.2    Performance of Covenants. 
       The Seller Parties shall have in all respects performed 
       and complied with all covenants, agreements, and 
       conditions that this Agreement and all related documents 
       require to be performed or complied with before or on the 
       Closing Date.  Kniff and the persons set forth in Section 
       4 shall have executed and delivered the Related 
       Agreements. 
7.3    [Deleted by Parties]
7.4    Permits. 
       Buyer shall have received all permits that in Buyer's 
       opinion are necessary to operate the Business after the 
       Closing. 
7.5    No Casualty. 
       Prior to the Closing Date, Seller shall not have incurred, 
       or be threatened with, a material liability or casualty 
       that would materially impair the value of the Purchased 
       Assets. 
7.6    Opinion of Counsel. 
       Buyer shall have received the favorable opinion of 
       Seller's counsel dated the Closing Date and in form and 
       substance satisfactory to Buyer's counsel.  The opinion 
       shall be in substantially the form attached as Exhibit F. 
7.7    Transfers of the Leased Equipment. 
       Instruments and documents of transfer of the Leased 
       Equipment shall have been executed and delivered to Buyer 
       in accordance with the Leased Equipment Purchase 
       Agreements. 
7.8    Instruments of Transfer, etc. 
       Seller shall have delivered to Buyer all bills of sale, 
       general instruments of transfer, conveyances, assurances, 
       transfers, assignments, approvals, consents, and any other 
       instruments and documents containing the usual and 
       customary covenants and warranties of title that are 
       consistent with the requirements of Section 5 and the 
       warranties Seller Parties make in this Agreement and that 
       shall be convenient, necessary, or reasonably required to 
       effectively transfer the Purchased Assets to Buyer with 
       good title, free and clear of all Encumbrances. 
7.9    Certificates Regarding Conditions Precedent. 
       The Seller Parties shall have delivered to Buyer 
       certificates of the Seller Parties certifying that as of 
       the Closing Date all of the conditions set forth in 
       Sections 7.1, 7.2, 7.5, 7.8, 7.10, and 7.12 have been 
       satisfied. 
7.10   No Litigation. 
       No action, suit, proceeding, or investigation shall have 
       been instituted, or, to the Best Knowledge of Seller 
       threatened, before any court or governmental body, or 
       instituted by any governmental agency, (a) to restrain or 
       prevent the carrying out of the transactions contemplated 
       by this Agreement, or (b) that might affect Buyer's right 
       to own, operate, and control the Purchased Assets after 
       the Closing Date. 

                              -10-

7.11   Lien Search. 
       Buyer shall have received UCC lien searches in form and 
       content satisfactory to Buyer, and any liens on the Leased 
       Equipment and Purchased Assets shall have been satisfied 
       and released. 
7.12   Consents. 
       Seller shall have obtained, in writing, all consents 
       necessary or desirable to consummate or to facilitate 
       consummation of this Agreement and any related 
       transactions.  The consents shall be delivered to Buyer 
       before Closing and shall be reasonably acceptable to Buyer 
       in form and substance.  Excluded from this requirement is 
       consent under Seller's contract with MichCon. 
7.13   [Deleted by Parties]
7.14   Conditional Tax Clearance. 
       Seller shall have provided to Buyer a certificate of 
       conditional tax clearance from the Revenue Commissioner of 
       the State of Michigan showing that Seller has filed all 
       tax returns and reports required to be filed before 
       Closing and that it has paid all taxes due pursuant to 
       Section 27a of Act No. 58 of the Michigan Public Acts of 
       1986, MCLA 205.27a, MSA 7.657(27a). 
7.15   MESC Contribution Liability. 
       Seller shall have provided to Buyer a statement from the 
       Commissioner of the Michigan Employment Security 
       Commission certifying the status of Seller's contribution 
       liability under Section 15(g) of the Michigan Employment 
       Security Act, MCLA 421.15(g), MSA 17.515[g]. 
7.16   Other Documents and Instruments. 
       Buyer shall have received such other documents and 
       instruments as it has reasonably requested. 
7.17   Approvals by Buyer's Counsel.
       Buyer's counsel shall reasonably approve all legal matters 
       and the form and substance of all documents that Buyer or 
       Seller Parties are to deliver at the Closing. 
7.18   Lease Amendment
       The Lease Assignments and Amendments shall have been 
       entered into and delivered. 

8.     Conditions Precedent to Seller Parties' Obligations. 
       Seller Parties' obligations to consummate the transactions
       contemplated by this Agreement are subject to the 
       fulfillment (or waiver by Seller) of each of the following 
       conditions before or at the Closing Date: 
8.1    Accuracy of Representations and Warranties. 
       Buyer's representations and warranties contained in this 
       Agreement and all related documents shall be true and 
       correct in any material respect at and as of the Closing 
       Date as though such representations and warranties were 
       made at the Closing. 



                              -11-

8.2    Performance of Covenants. 
       Prior to and at the Closing, Buyer shall have in all 
       respects performed and complied with its obligations under 
       all the covenants, agreements, and conditions that this 
       Agreement and all related documents require. 
8.3    Approvals by Seller's Counsel.
       Seller's counsel shall reasonably approve all legal 
       matters and the form and substance of all documents Seller 
       or Buyer is to deliver at the Closing. 
8.4    Other Documents and Instruments. 
       Seller shall have received such other documents and 
       instruments as it has reasonably requested. 
8.5    Certificates Regarding Conditions Precedent. 
       The Buyer shall have delivered to Seller Parties 
       certificates of the Buyer certifying that as of the 
       Closing Date all of the conditions set forth in Sections 
       8.1, 8.2 and 8.7 have been satisfied. 
8.6    Opinion of Counsel. 
       Seller  shall have received the favorable opinion of 
       Buyer's counsel dated the Closing Date and in form and 
       substance satisfactory to Seller's counsel. The opinion 
       shall be in substantially the form attached as Exhibit G. 
8.7    No Litigation. 
       No action, suit, proceeding, or investigation shall have 
       been instituted or, to the Best Knowledge of Buyer 
       threatened, before any court or governmental body, or 
       instituted by any governmental agency, (a) to restrain or 
       prevent the carrying out of the transactions contemplated 
       by this Agreement, or (b) that might affect Buyer's right 
       to own, operate, and control the Purchased Assets after 
       the Closing Date. 
8.8    Leased Equipment 
       The closing of the transactions under the Leased Equipment 
       Purchase Agreements shall heave occurred. 
8.9    Lease Amendments 
       The Lease Assignments and Amendments shall have been 
       entered into and delivered. 

9.     Closing Matters. 
9.1    Closing. 
       The closing of the transactions contemplated in this 
       Agreement (the "Closing") shall take place at the offices 
       of Miller, Johnson, Snell & Cummiskey, P.L.C., 800 Calder 
       Plaza Building, Grand Rapids, Michigan, at 10:00 a.m. on 
       August 13, 1997 or at such other place and/or on such 
       other date as the parties may agree on (the "Closing 
       Date"). 
9.2    Certain Closing Expenses. 
       Except for Michigan sales and use taxes, which shall be 
       paid by Buyer, Seller Parties shall be liable for and 
       shall pay all federal, state, and local, excise, and 
       documentary stamp taxes and all other taxes, duties, or 
       
                              -12-

       other like charges properly payable on and in connection 
       with Seller's conveyance and transfer of the Purchased 
       Assets to Buyer. 
9.3    Further Assurances. 
       Seller Parties shall cooperate with and assist Buyer with 
       the transfer of the Purchased Assets under this Agreement 
       and take all other reasonable actions to assure that the 
       Business is transferred smoothly to Buyer.  From time to 
       time after the Closing Date, Seller Parties shall, at the 
       request of Buyer, execute and deliver such additional 
       conveyances, transfers, documents, instruments, 
       assignments, applications, certifications, papers, and 
       other assurances that Buyer requests as necessary, 
       appropriate, convenient, useful or desirable to 
       effectively carry out the intent of this Agreement and to 
       transfer the Purchased Assets to Buyer. 

10.    Seller Parties' Representations and Warranties. 
       As of the date of this Agreement and as of the Closing, 
       the Seller Parties, jointly and severally, represent and 
       warrant to Buyer, as follows, and acknowledge and confirm, 
       that Buyer is relying on these representations and 
       warranties in entering into this Agreement. 
10.1   Organization and Standing. 
       Seller is a corporation duly organized, validly existing, 
       and in good standing under the laws of the State of 
       Michigan, and Seller has all requisite power and authority 
       (corporate and otherwise) to own its properties and 
       conduct its business as it is now being conducted.  The 
       nature of the business and the character of the properties 
       Seller owns or leases do not make the licensing or 
       qualification of Seller as a foreign corporation necessary 
       under the laws of any other jurisdiction.  Except as set 
       forth in Schedule 10.1, Seller has not used or assumed any 
       other name in connection with the conduct of its business 
       during the last five years. 
10.2   Authorization. 
       Seller has all requisite power and authority (corporate 
       and otherwise), and Kniff  has all requisite legal 
       capacity (a) to execute, deliver, and perform this 
       Agreement  and the Related Agreements to which each is a 
       party and (b) to consummate the transactions contemplated 
       under this Agreement and the Related Agreements.  Seller 
       has taken all necessary corporate action (including the 
       approval of its board of directors and sole shareholder) 
       to approve the execution, delivery, and performance of 
       this Agreement and the consummation of the transactions 
       contemplated in this Agreement.  Each of the Seller 
       Parties has duly executed and delivered this Agreement.  
       This Agreement is, and the Related Agreements when 
       executed and delivered by the parties to them will be, 
       legal, valid, and binding obligations of each of the 
       
                              -13-

       parties  to them, enforceable against each of them in 
       accordance with this Agreement and the Related Agreements' 
       respective terms. 
10.3   Existing Agreements and Governmental Approvals. 
       (a)     Except as set forth on Schedule 10.3, the 
               execution, delivery, and performance of this 
               Agreement and the Related Agreements and the 
               consummation of the transactions contemplated by 
               them: (i) do not and will not violate any 
               provisions of law applicable to the Seller 
               Parties, the Business, or the Purchased Assets; 
               (ii) do not and will not conflict with, result in 
               the breach or termination of any provision of, or 
               constitute a default under (in each case whether 
               with or without the giving of notice or the lapse 
               of time or both) Seller's Articles of 
               Incorporation or Bylaws, or any indenture, 
               mortgage, lease, deed of trust, or other 
               instrument, contract, or agreement or any order, 
               judgment, arbitration award, or decree to which 
               the Seller Parties or either of them is a party or 
               by which they or any of their respective assets 
               and properties are bound (including, without 
               limitation, the Purchased Assets); and (iii) do 
               not and will not result in the creation of any 
               Encumbrance on the Seller Parties' properties, 
               assets, or Business (including, without 
               limitation, the Purchased Assets). 
       (b)     Except as set forth on Schedule 10.3, no approval, 
               authority, or consent of, or filing by,  Seller 
               Parties  with, or notification to, any federal, 
               state, or local court, authority, or governmental 
               or regulatory body or agency or any other 
               corporation, partnership, individual, or other 
               entity is necessary (i) to authorize the execution 
               and delivery of this Agreement or any of the 
               Related Agreements by the Seller Parties, (ii) to 
               authorize the consummation of the transactions 
               contemplated by this Agreement or any of the 
               Related Agreements by the Seller Parties, or (iii) 
               to continue Buyer's use and operation of the 
               Purchased Assets after the Closing Date. 
10.4   No Subsidiaries. 
       Seller does not have any subsidiaries or directly or 
       indirectly own any interest or have any investment in any 
       other corporation, partnership, or other entity. 
10.5   No Insolvency. 
       No insolvency proceeding of any character, including, 
       without limitation, bankruptcy, receivership, 
       reorganization, composition, or arrangement with 
       creditors, voluntary or involuntary, affecting Seller or 
       any of its assets or properties is pending or, to the Best 
       
                              -14-

       Knowledge of Seller Parties, threatened.  Seller Parties 
       have not taken any action in contemplation of, or that 
       would constitute the basis for, the institution of any 
       such insolvency proceedings.  For the purposes of this 
       Agreement, the phrase "Best Knowledge of Seller Parties," 
       or words of similar import, mean such knowledge as the 
       Seller Parties would have after due inquiry into the 
       matter in question. 
10.6   Permits and Licenses. 
       Seller has all necessary permits, certificates, licenses, 
       approvals, consents, and other authorizations required to 
       carry on and conduct the Business and to own, lease, use, 
       and operate the Purchased Assets at the places and in the 
       manner in which the Business is conducted, all of which to 
       the extent transferable shall be transferred or assigned 
       to Buyer at the Closing, without expense to Buyer.  A 
       complete list of such permits, certificates, licenses, 
       approvals, consents, and other authorizations is included 
       in Schedule 10.6.  Except as noted on Schedule 10.6, all 
       such permits, certificates, licenses, approvals, consents 
       and other authorizations are transferable and will be 
       transferred to Buyer at Closing. 
10.7   Financial Statements. 
       Seller Parties have delivered to Buyer the financial 
       statements listed in Schedule 10.7, and Seller Parties 
       shall deliver, before the Closing, copies of all other 
       financial statements Seller has prepared for each full 
       month prior to the Closing (the "Financial Statements").  
       The Financial Statements have been and will be prepared in 
       accordance with GAAP, do and will fairly and accurately 
       present Seller's financial position as of the dates 
       indicated and the results of its operations as of the 
       dates indicated and for the periods covered thereby, and 
       are and will be true and correct in all material respects.  
       Adequate provision has been and will be timely made in the 
       Financial Statements for doubtful accounts or other 
       receivables; sales are stated in the Financial Statements 
       net of discounts, deductions, amounts in dispute, and 
       allowances; all Taxes (as defined in Section 10.19(a)) due 
       or paid are and will be timely reflected in the Financial 
       Statements; and all Taxes not yet due and payable are and 
       will be fully accrued or otherwise provided for.  Any 
       items of income or expense that are unusual or of a 
       nonrecurring nature during any such period or at any such 
       balance sheet date are and will be separately disclosed in 
       the Financial Statements.  Except as otherwise disclosed 
       on Schedule 10.7, Seller's books, records, and work papers 
       are complete and correct; have been maintained on an 
       accrual basis in accordance with GAAP; and accurately 
       reflect, and will accurately reflect, the basis for the 
       financial condition and the results of Seller's operations 
       that are set forth in the Financial Statements and are to 
       be set forth in the Preliminary Balance Sheet and the 
       Closing Balance Sheet. 

                              -15-

10.8   No Undisclosed Liabilities. 
       Except as otherwise disclosed on Schedule 10.8 or in the 
       Financial Statements, and to the Best Knowledge of Seller 
       Parties, Seller does not have any liabilities or 
       obligations, whether accrued, absolute, contingent, or 
       otherwise, and there exists no fact or circumstance that 
       could give rise to any such liabilities or obligations in 
       the future. 
10.9   Conduct of Business. 
       Except as otherwise disclosed on attached Schedule 10.9, 
       since December 31, 1996, Seller has not: 
       (a)     Declared or paid any dividend or made any other 
               payment from capital or surplus or other 
               distribution of any nature, or directly or 
               indirectly redeemed, purchased, or otherwise 
               acquired, recapitalized, or reclassified any of 
               its capital stock. 
       (b)     Merged or consolidated with any other entity. 
       (c)     Altered or amended its Articles of Incorporation 
               or Bylaws. 
       (d)     Entered into, materially amended, or terminated 
               any contract, license, lease, commitment, or 
               permit, except in the ordinary course of business 
               consistent with past practices. 
       (e)     Experienced any labor disturbance. 
       (f)     Incurred or become subject to any obligation or 
               liability (absolute, accrued, contingent, or 
               otherwise), except (i) in the ordinary course of 
               business consistent with past practices and (ii) 
               in connection with the performance of this 
               Agreement.
       (g)     Discharged or satisfied any Encumbrance or paid or 
               satisfied any obligation or liability (absolute, 
               accrued, contingent, or otherwise) other than (i) 
               liabilities shown or reflected in Seller's balance 
               sheet dated December 31, 1996 or (ii) liabilities 
               incurred since the date of the balance sheet, in 
               each case only in the ordinary course of business 
               consistent with past practices and in accordance 
               with the express terms of such obligation or 
               liability. 
       (h)     Mortgaged, pledged, or subjected to any 
               Encumbrance any of the Purchased Assets.
       (i)     Sold, transferred, or agreed to sell or transfer 
               any asset, property, or business; canceled or 
               agreed to cancel any debt or claim; or waived any 
               right, except in the ordinary course of business 
               consistent with past practices. 
       (j)     Disposed of or permitted to lapse any Intellectual 
               Property. 



                              -16-

       (k)     Granted any increase in employee rates of pay or 
               any increases in salary payable or to become 
               payable to any officer, employee, consultant, or 
               agent, or by means of any bonus or pension plan, 
               contract, or other commitment increased the 
               compensation of any officer, director, employee, 
               consultant, or agent, or hired any new officer, 
               employee, consultant, or agent. 
       (l)     Made or authorized any capital expenditures for 
               additions to plant or equipment accounts in excess 
               of $350,000. 
       (m)     Entered into any transaction (including, without 
               limitation, any contract or other arrangement 
               providing for employment, furnishing of services, 
               rental of real or personal property, or otherwise 
               requiring payments) with any shareholder, officer, 
               or director of Seller; any member of their 
               immediate families; or any of their affiliates. 
       (n)     To the Best Knowledge of Seller Parties, 
               experienced any material damage, destruction, or 
               loss (whether or not covered by insurance) 
               affecting its properties, assets, or Business. 
       (o)     Failed to regularly maintain and repair the 
               Purchased Assets in the ordinary course of 
               business consistent with past practices. 
       (p)     Instituted or settled any litigation, action, or 
               proceeding before any court or governmental body 
               relating to it or its property. 
       (q)     Made any change in any method of accounting or any 
               accounting practice or suffered any deterioration 
               in accounting controls. 
       (r)     Varied, canceled, or allowed to expire any 
               insurance coverage. 
       (s)     Made any payment or other distribution or 
               disbursement of moneys or property to or on behalf 
               of any officer, director, or shareholder of Seller 
               or any member of the immediate families of the 
               Seller Parties, or any affiliate, other than for 
               payment of compensation or reimbursement of 
               expenses in accordance with past practices. 
       (t)     Entered into any other transaction other than in 
               the ordinary course of business consistent with 
               past practices. 
       (u)     Agreed or committed to do any of the foregoing. 
10.10  No Adverse Changes. 
       Except as otherwise disclosed in Schedule 10.10, since 
       December 31, 1996, to the Best Knowledge of Seller 
       Parties, there has not been any occurrence, condition, or 
       development that has adversely affected, or is likely to 
       adversely affect, Seller, its prospects, its condition 
       (financial or otherwise), its affairs, its operations, the 
       Business, or the Purchased Assets. 

                              -17-

10.11  Employees. 
       There is not now, nor has there been at any time during 
       the past five years, any strike, lockout, grievance, other 
       labor dispute, or trouble of any nature pending or to the 
       Best Knowledge of Seller Parties, threatened against 
       Seller or that in any manner affects Seller.  Seller is 
       and has been in compliance with all rules regulating 
       employee wages and hours. On or before the Closing Date, 
       Seller shall have paid all its accrued obligations 
       relating to employees (whether arising by operation of 
       law, by contract, or by past service) or payments to 
       trusts or other funds, to any governmental agency, or to 
       any individual employee (or his or her legal 
       representatives) with respect to unemployment compensation 
       benefits, profit sharing, retirement benefits, or Social 
       Security benefits. 
10.12  Employee Benefit Plans. 
       (a)     Schedule 10.12 contains a true and complete list 
               of all plans, contracts, programs, and 
               arrangements (including, but not limited to, 
               collective bargaining agreements, pensions, 
               bonuses, deferred compensation, retirement, 
               severance, hospitalization, insurance, salary 
               continuation, and other employee benefit plans, 
               programs, or arrangements) maintained currently or 
               at any time within the previous five years by 
               Seller or under which Seller has had any 
               obligations with respect to an employee of Seller 
               (the "Plans").  Each of the following is included 
               in the list of agreements in Schedule 10.12: all 
               collective bargaining agreements, employment and 
               consulting agreements, executive compensation 
               plans, bonus plans, deferred compensation plans, 
               employee pension or retirement plans, employee 
               profit-sharing plans, employee stock purchase and 
               stock option plans, hospitalization insurance, and 
               other plans and arrangements providing for 
               employee benefits to Seller's employees. 
       (b)     Except as specifically set forth in Schedule 
               10.12, (i) the Sub-Surface Construction Company 
               Profit Sharing Retirement Plan ("Profit-Sharing 
               Plan") an employee pension benefit plan, as 
               defined in Section 3(2) of ERISA, and its related 
               trust ("Profit-Sharing Plan and Trust") now meet, 
               and since their inception have met, the 
               requirements for qualification under Section 
               401(a) of the Internal Revenue Code of 1986, as 
               amended (the "Code"), and are now, and since their 
               inception have been, exempt from taxation under 
               Section 501(a) of the Code, and the Internal 
               Revenue Service (the "IRS") has issued a current 
               favorable determination letter with respect to the 
               
                              -18-

               qualified status of the Profit-Sharing Plan and 
               Trust and has not taken any action to revoke such 
               letter; (ii) Seller has performed all obligations 
               required to be performed by it under the 
               Profit-Sharing Plan (including, but not limited 
               to, the making of all contributions) and is not in 
               default under and has no knowledge of any default 
               by any other party to the Profit-Sharing Plan; 
               (iii) Seller is in compliance with the 
               requirements of all statutes, orders, and 
               governmental rules and regulations applicable to 
               such Profit-Sharing Plan, including, but not 
               limited to, ERISA and the Code; (iv) neither 
               Seller nor, to Seller Parties' Best Knowledge, any 
               other disqualified person or party in interest, 
               within the meaning of Section 4975 of the Code or 
               Section 3(14) of ERISA, has engaged in any 
               prohibited transaction, as this term is defined in 
               Section 4975 of the Code or Section 406 of ERISA, 
               that could, following the Closing Date, subject 
               the Profit-Sharing Plan (or its related trust), 
               Buyer, Seller, or any officer, director, or 
               employee of Buyer or Seller, to any tax or penalty 
               imposed under the Code or ERISA; (v) there are no 
               actions or claims pending (other than routine 
               claims for benefits) or, to Seller Parties' Best 
               Knowledge, threatened against the Profit-Sharing 
               Plan or against the assets of the Profit-Sharing 
               Plan; (vi) the Profit-Sharing Plan is not subject 
               to Part 3 of Title I of ERISA, Section 412 of the 
               Code, or Title IV of ERISA; (vii) the 
               Profit-Sharing Plan's plan official, as defined in 
               Section 412 of ERISA, is bonded to the extent 
               required by Section 412; (viii) no proceeding has 
               been initiated to terminate the Profit-Sharing 
               Plan, and any such termination will not subject 
               Seller or Buyer to liability to any person; (ix) 
               the Profit-Sharing Plan is not a multiemployer 
               plan, as defined in Section 3(37) of ERISA; (x) no 
               retiree benefits are payable under any employee 
               welfare benefit plan ("Welfare Plan"), as this 
               term is defined in Section 3(1) of ERISA; and (xi) 
               the Blue Cross-Blue Shield Health Plan  is a group 
               health plan within the meaning of Section 5000 of 
               the Code, and  complies with and in each case has 
               complied with the applicable requirements of 
               Sections 601 through 608 of ERISA, Section 162(k) 
               of the Code (through December 31, 1996), and 
               Section 4980B of the Code (commencing January 1, 
               1997). 



                              -19-

10.13  Certain Employees. 
       (a)     Schedule 10.13 contains a true and complete list 
               of the following: the names, positions, and 
               compensation of the present directors, officers, 
               and key employees and superintendents of the 
               Seller.  Except as listed in Schedule 10.13, all 
               Seller's non-bargaining unit employees are 
               employees-at-will and may be terminated at any 
               time by Seller for any lawful reason or for no 
               reason, and are not entitled to employment by 
               virtue of any oral or written contract, employer 
               policy, or otherwise. 
       (b)     Except as set forth in Schedule 10.12,  no retired 
               employees of Seller are receiving or are entitled 
               to receive any payments or health or other 
               benefits from Seller. 
10.14  Contracts. 
       Except for the Contracts and Commitments listed on 
       Schedule 1.6, or as otherwise listed on Schedule 10.14, 
       Seller is not a party to nor bound by any agreement or 
       commitment that affects the Business, the Purchased 
       Assets, or the Assumed Liabilities. To the Best Knowledge 
       of Seller Parties, all Contracts and Commitments are valid 
       and binding obligations of the parties thereto in 
       accordance with their respective terms.  No default or 
       alleged default exists on the part of Seller, nor, to the 
       Best Knowledge of Seller Parties, on the part of any other
       party, under any of the Contracts and Commitments.  True 
       and complete copies of all Contracts and Commitments have 
       been delivered to Buyer. 
10.15  Title to Purchased Assets. 
       Seller is the sole and absolute owner of the Purchased 
       Assets and has good title to all of the Purchased Assets, 
       free and clear of any and all Encumbrances.  Schedule 
       10.15 lists or describes all property used in the conduct 
       of the Business and/or situated on the Premises that is 
       owned by or an interest in which is claimed by any other 
       person (whether a customer, supplier, or other person) and 
       for which Seller is responsible, together with copies of 
       all related agreements.  All such property is situated on 
       the Premises and is in such condition that upon return to 
       its owner, Buyer will not be liable in any amount to the 
       owner. 
10.16  Condition of Purchased Assets. 
       All the Purchased Assets are  in good working order and 
       repair.  Each item is situated at the Premises and is fit 
       for its intended purpose, with no material defects. 
10.17  Receivables. 
       The Receivables are good and valid billings arising from 
       bona fide services or other transactions in the ordinary 
       course of business, and are collectible in the ordinary 
       course of business.

                              -20-

10.18  Sufficiency of Purchased Assets. 
       The Purchased Assets, the Leased Equipment and the Leased 
       Premises constitute all the property and assets, real, 
       personal, and mixed, tangible and intangible (including, 
       without limitation, contract rights), that are used or are 
       useful in, or are necessary for the conduct of, the 
       Business in accordance with present practices. 
10.19  Taxes. 
       (a)     For the purposes of this Agreement, Tax or Taxes 
               shall mean all federal, state, county, local, and 
               other taxes (including, without limitation, income 
               taxes; premium taxes; single-business taxes; 
               excise taxes; sales taxes; use taxes; value-added 
               taxes; gross receipts taxes; franchise taxes; ad 
               valorem taxes; real estate taxes; severance taxes; 
               capital levy taxes; transfer taxes; stamp taxes; 
               employment, unemployment, and payroll-related 
               taxes; withholding taxes; and governmental charges 
               and assessments), and include interest, additions 
               to tax, and penalties. 
       (b)     Except as otherwise disclosed on Schedule 10.19, 
               Seller has filed on a timely basis all Tax returns 
               it is required to file under federal, state, or 
               local law and has paid or established an adequate 
               reserve with respect to all Taxes for the periods 
               covered by such returns;  no agreements have been 
               made by or on behalf of Seller for any waiver or 
               for the extension of any statute of limitations 
               governing the time of assessment or collection of 
               any Taxes; Seller and its officers have received 
               no notice of any pending or threatened audit by 
               the IRS or any state or local agency related to 
               Seller's Tax returns or Tax liability for any 
               period, and no claim for assessment or collection 
               of Taxes has been asserted against Seller; and 
               there are no federal, state, or local tax liens 
               outstanding against any of Seller's assets 
               (including, without limitation, the Purchased 
               Assets) or the Business. 
       (c)     [Deleted by Parties] 
       (d)     [Deleted by Parties] 
       (e)     [Deleted by Parties] 
       (f)     The information contained on the Michigan 
               Employment Security Commission Form 1027, Business 
               Transferor's Notice to Transferee of Unemployment 
               Tax Liability and Rate, is correct and complete. 
       (g)     Seller has paid all taxes due the State of 
               Michigan and all amounts due the Michigan 
               Employment Security Commission, except for the 
               current 1997 tax year and as accrued in the 
               ordinary course of business as of July 31, 1997. 


                              -21-

10.20  Litigation. 
       Except as disclosed in Schedule 10.8, there are no claims, 
       disputes, actions, suits, proceedings, or investigations 
       pending or, to the Best Knowledge of the Seller Parties, 
       threatened against or affecting Seller, the Business, or 
       the Purchased Assets, including, without limitation, any 
       such involving employees of Seller. 
10.21  Construction Contracts. 
       No defect or deficiency exists in any of the work 
       performed by Seller under its construction contracts that 
       could give rise to any liabilities or claims for breach of 
       warranty, breach of contract, or similar liabilities or 
       claims. 
10.22  Environmental Matters. 
       (a)     The following terms used in this Section 10.22 
               have the meanings set forth below: 
               (i)     Environmental Laws means the (A) Toxic 
                       Substances Control Act, 15 USC 2601 et 
                       seq.; (B) National Historic Preservation 
                       Act, 16 USC 470 et seq.; (C) Coastal Zone 
                       Management Act of 1972, 16 USC 1451 et 
                       seq.; (D) Rivers and Harbors Appropriation 
                       Act of 1899, 33 USC 401 et seq.; (E) Clean 
                       Water Act, 33 USC 1251 et seq.; (F) Flood 
                       Disaster Protection Act of 1973, 42 USC 
                       4001 et seq.; (G) National Environmental 
                       Policy Act of 1969, 42 USC 4321 et seq.; 
                       (H) Resource Conservation and Recovery Act 
                       of 1976 (RCRA), 42 USC 6901 et seq.; (I) 
                       Clean Air Act, 42 USC 7401 et seq.; (J) 
                       Comprehensive Environmental Response, 
                       Compensation, and Liability Act (CERCLA), 
                       42 USC 9601 et seq.; (K) Hazardous 
                       Materials Transportation Act, 49 USC 1801 
                       et seq.; (L) Safe Drinking Water Act, 42 
                       USC 300f et seq.; (M) Emergency Planning 
                       and Community Right-to-Know Act of 1986, 
                       42 USC 11001 et seq.; (N) Federal 
                       Insecticide, Fungicide, and Rodenticide 
                       Act, 7 USC 136 et seq.; (O) Occupational 
                       Safety and Health Act, 29 USC 651 et seq.; 
                       and all other federal, state, county, 
                       municipal and local, foreign, and other 
                       statutes, laws, regulations, and 
                       ordinances that relate to or deal with 
                       protection of human health or the 
                       environment, all as may be amended from 
                       time to time, including, without 
                       limitation, the Michigan Natural Resources 
                       & Environmental Protection Act, MCLA e 
                       324.101, et seq. 


                              -22-

               (ii)    Hazardous Substance(s) means (A) any 
                       flammable or combustible substance, 
                       explosive, radioactive material, hazardous 
                       substance or waste, toxic substance, 
                       pollutant, contaminant, or any related 
                       materials or substances identified in or 
                       regulated by any of the Environmental 
                       Laws; and (B) asbestos, polychlorinated 
                       biphenyls (PCBs), urea formaldehyde, 
                       chemicals and chemical wastes, explosives, 
                       known carcinogens, petroleum products and 
                       by-products (including fractions thereof), 
                       and radon. 
               (iii)   Property means any parcel of real estate 
                       now or previously owned, leased, or 
                       operated by Seller or in which Seller has 
                       or had any interest, including the 
                       Premises. 
       (b)     Except as described or referenced in Schedule 
               10.22: (i) To the Best Knowledge  of Seller 
               Parties, Seller is now and has at all times been 
               in material full compliance with all Environmental 
               Laws; (ii) To the Best Knowledge  of Seller 
               Parties, there are no substances or conditions in 
               or on the Property that may support a claim or 
               cause of action against Seller or Buyer under any 
               Environmental Laws; (iii) there are not, and never 
               have been, any underground storage tanks located 
               in or under the Property; (iv)To the Best 
               Knowledge  of Seller Parties, neither Seller nor 
               its directors, officers, employees, or agents have 
               generated or transported any Hazardous Substances 
               at any time that have been transported to or 
               disposed of in any landfill or other facility 
               where the transportation or disposal could create 
               liability to any unit of government or any third 
               party. 
       (c)     To the Best Knowledge  of Seller Parties and 
               except as otherwise disclosed in Schedule 22, no 
               activity has been undertaken on the Property that 
               would cause or contribute to (i) the Property 
               becoming a treatment, storage or disposal facility 
               within the meaning of any Environmental Laws; (ii) 
               a release or threatened release of any Hazardous 
               Substances; or (iii) the discharge of pollutants 
               or effluents into any water source or system or 
               into the air, or the dredging or filling of any 
               waters, where such action would require a permit 
               under any Environmental Laws.  To the Best 
               Knowledge of Seller Parties, Seller has obtained 
               all permits required by all applicable 
               Environmental Laws, and all such permits are in 
               full force and effect. 

                              -23-

       (d)     Seller Parties have disclosed and delivered to 
               Buyer all environmental reports and investigations 
               that any of them has in their  possession with 
               respect to the Property. 
       (e)     Buyer and Seller acknowledge that during Buyer's 
               investigation of the Comstock Park site, a release 
               of toluene, ethylbenzene, xylene and lead was 
               discovered to be in excess of acceptable levels, 
               as more fully set forth in the July 1997 Phase I 
               and Phase II Environmental Site Assessments of 
               said site, prepared by Horizon Environmental Corp. 
               and the subsequent reports of Prein & Newhof.  
               Seller Parties agree to investigate the nature and 
               extent of the release and to remediate said 
               release to closure under applicable Environmental 
               Law, at Kniff's expense.  Buyer and Seller Parties 
               shall cooperate in the filing of a Baseline 
               Environmental Assessment with the Michigan 
               Department of Environmental Quality covering the 
               Comstock Park Property within a reasonable time 
               after Closing and at Buyer's expense. 
10.23  Compliance with Laws. 
       At all times prior to the Closing Date to the Best 
       Knowledge of Seller Parties, Seller has complied in all 
       material respects with all laws, orders, regulations, 
       rules, decrees, and ordinances affecting to any extent or 
       in any manner any aspects of the Business or the Purchased 
       Assets. 
10.24  Suppliers and Customers. 
       (a)     A complete and accurate list of all suppliers or 
               vendors of products or services to Seller in 
               connection with the Business (other than legal or 
               accounting services) and the address of each 
               supplier or vendor is set forth in Schedule 10.24.  
               The names of any suppliers of goods or services 
               with respect to which practical alternative 
               sources of supply are not available on comparable 
               terms and conditions are separately listed in 
               Schedule 10.24. 
       (b)     A complete and accurate list of each of Seller's 
               customers, the address of each customer, and the 
               amount each customer purchased from Seller during 
               the last fiscal year is set forth in Schedule 
               10.24. 
       (c)     Seller Parties have no information that might 
               reasonably indicate that any customer or supplier 
               of Seller intends to cease purchasing from, 
               selling to, or dealing with Seller.  No 
               information has been brought to the attention of  
               Seller Parties that might reasonably lead any of 
               them to believe that any customer or supplier 
               intends to alter, in any material respect, the 
               
                              -24-

               amount of its purchases or sales or the extent of 
               its dealings with Seller, or would alter in any 
               material respect its purchases from, sales to, or 
               dealings with Buyer in the event that the 
               transactions contemplated by this Agreement are 
               consummated. 
10.25  Progress Payments. 
       Attached Schedule 10.25 contains a true and complete list 
       and description of all security deposits, progress 
       payments, and the like that Seller has received relating 
       in any way to any purchase orders, leases, construction 
       contracts or other agreements that are part of the 
       Purchased Assets. 
10.26  [Deleted by Parties] 
10.27  No Brokers. 
       Seller has not engaged, and is not responsible for any 
       payment to, any finder, broker, or consultant in 
       connection with the transactions contemplated by this 
       Agreement. 
10.28  Insider Transactions. 
       A complete and accurate list and brief description of all 
       contracts or other transactions involving Seller in which 
       any officer, director, employee, member or shareholder of 
       Seller, Comstock, Union Equipment, UP or Southeastern 
       Utility, or any member of their immediate families, or any 
       affiliate has any interest is set forth in Schedule 10.28. 
10.29  Bank Accounts. 
       Schedule 1.4 contains a true and complete list of the 
       names and locations of all banks or other financial 
       institutions that are depositories of funds of Seller, the 
       names of all persons authorized to draw or sign checks or 
       drafts on such accounts, the number of such accounts, and 
       the names and locations of any institutions in which 
       Seller has safe-deposit boxes and the names of the 
       individuals having access to those boxes. 
10.30  Intellectual Property. 
       Schedule 10.30 lists all Intellectual Property of the 
       Seller that Seller directly or indirectly owns, licenses, 
       uses, requires for use, or controls in whole or in part 
       and all licenses and other agreements allowing Seller to 
       use the intellectual property of third parties.  Seller 
       does not own, directly or indirectly, or use any patents, 
       copyrights, trademarks, or service marks in the Business.  
       Except as set forth in Schedule 10.30, Seller is the sole 
       and exclusive owner of the Intellectual Property, free and 
       clear of all Encumbrances.  None of the Seller's 
       Intellectual Property infringes on any other person's 
       intellectual property, and, to the Best Knowledge of the 
       Seller Parties, no activity of any other person infringes 
       on any of the Intellectual Property.  To the Best 
       Knowledge of Seller Parties, the Seller has been and is 
       now conducting the Business in a manner that has not been 
       
                              -25-

       and is not now in violation of any other person's 
       intellectual property, and Seller does not require a 
       license or other proprietary right to so operate the 
       Business.  Seller's drawings, specifications, bills of 
       material, trade secrets, "know-how," and like data are in 
       such form and of such quality that they can, following the 
       Closing Date, be used in providing the services previously 
       provided by Seller so that such services meet applicable 
       specifications and conform with the quality standards 
       Seller previously met or was required to meet. 
10.31  Insurance. 
       All insurance policies covering Seller's real and personal 
       property or providing for business interruption, personal 
       and product liability coverage, and other insurance are 
       described in Schedule 10.31 (which specifies the insurer, 
       policy number, type of insurance, and any pending claims).  
       Such insurance is in amounts Seller deems sufficient with 
       respect to its assets, properties, business, operations, 
       products, and services as the same are presently owned or 
       conducted, and all such policies are in full force and 
       effect and the premiums have been paid.  There are no 
       claims, actions, suits, or proceedings arising out of or 
       based on any of these insurance policies, and no basis for 
       any such claim, action, suit, or proceeding exists.  
       Seller is not in default with respect to any provisions 
       contained in any such insurance policies and has not 
       failed to give any notice or present any claim under any 
       such insurance policy in due and timely fashion. 
10.32  Leased Premises 
       Schedule 10.32 is a list of the Leased Premises which 
       comprise all leased real property used for the conduct of 
       the business. 

11.    Buyer's Representations and Warranties. 
       Buyer represents and warrants to Seller that: 
11.1   Organization and Standing. 
       Buyer is a corporation duly organized and validly existing 
       under the laws of the State of Michigan, and Buyer has all 
       the requisite power and authority (corporate and 
       otherwise) to own its properties and to conduct its 
       business as it is now being conducted.  Buyer is a wholly 
       owned subsidiary of SEMCO Energy, Inc., a Michigan 
       corporation, and was formed for the purpose of acquiring 
       the assets and business of Seller. 
11.2   Authorization. 
       Buyer has taken all necessary corporate action (a) to duly 
       approve the execution, delivery, and performance of this 
       Agreement and (b) to consummate any related transactions.  
       Buyer has duly executed and delivered this Agreement.  
       This Agreement is the legal, valid, and binding obligation 
       of Buyer, enforceable against Buyer in accordance with its 
       terms. 

                              -26-

11.3   Existing Agreements and Governmental Approvals. 
       (a)     The execution, delivery, and performance of this 
               Agreement and the consummation of the transactions 
               contemplated by them: (i) do not and will not 
               violate any provisions of the law applicable to 
               Buyer; (ii) do not and will not conflict with, 
               result in the breach or termination of any 
               provision of, or constitute a default under (in 
               each case whether with or without the giving of 
               notice or the lapse of time, or both) Buyer's 
               Articles of Incorporation or Bylaws or any 
               indenture, mortgage, lease, deed of trust, or 
               other instrument, contract, or agreement or any 
               order, judgment, arbitration award, or decree to 
               which Buyer is a party or by which it or any of 
               its assets and properties are bound; and (iii) do 
               not and will not result in the creation of any 
               Encumbrance on any of the Buyer's properties, 
               assets, or business. 
       (b)     Except as set forth on Schedule 11.3, no approval, 
               authority, or consent of, or filing by Buyer with, 
               or notification to, any federal, state, or local 
               court, authority, or governmental or regulatory 
               body or agency or any other corporation, 
               partnership, individual, or other entity is 
               necessary (i) to authorize Buyer's execution and 
               delivery of this Agreement or (ii) to authorize 
               Buyer's consummation of the transactions 
               contemplated by this Agreement. 
11.4   No Brokers. 
       Buyer has not engaged, and is not responsible for any 
       payment to, any finder, broker, or consultant in 
       connection with the transactions contemplated by this 
       Agreement. 

12.    Employees. 
       (a)     Seller has furnished Buyer with a complete list of 
               all employees of Seller and the salaries and other 
               compensation payable to each.  Buyer shall offer 
               employment to all current employees of Seller with 
               wages, salaries and benefits substantially similar 
               as those paid to them by Seller immediately prior 
               to Closing.  Seller shall cooperate and encourage 
               such employees to accept employment with Buyer.  
               Buyer shall be responsible and liable for only the 
               salary, wages, bonuses, commissions, accrued 
               vacations, or sick-leave time  and any other 
               compensation or benefits specifically assumed 
               hereunder as Assumed Liabilities.  Nothing herein 
               shall be deemed to require Buyer to employ any 
               such person for any period of time.  Such 
               employment shall be at-will and in accordance with 
               
                              -27-

               the collective bargaining agreements below.  
               Seller Parties shall be responsible for any of the 
               following as they may exist as of the Effective 
               Date with respect to Seller's employees: any 
               actions or causes of action, including, but not 
               limited to, unemployment compensation claims and 
               worker's compensation claims and claims for race, 
               age, and sex discrimination and sexual harassment. 
       (b)     Buyer shall adopt/assume the terms and provisions 
               of the following collective bargaining agreements 
               to which Seller is currently bound: 
               --      Agreement between the Michigan Distributor 
                       Contractors Association and State of 
                       Michigan Laborer's District Council for 
                       1995 through 1998; 
               --      Agreement between Michigan Distributor 
                       Contractors Association and International 
                       Union of Operating Engineers, Local No. 
                       324, 324-A, 324-B and 324-C, AFL-CIO for 
                       May 1, 1995 through April 30, 1998; 
               --      Agreement between Michigan Distributor 
                       Contractors Association and United 
                       Association of Journeymen and Apprentices 
                       of the Plumbing and Pipefitting Industry 
                       of the United States and Canada (AFL-CIO) 
                       for 1995 through 1998. 
               Buyer will forever indemnify, protect, save and 
               hold harmless Seller against and in respect to any 
               and all liabilities, costs and expenses 
               (including, but not limited to, reasonable 
               attorneys' fees) incurred by Seller, as a 
               consequence of any alleged breach by Buyer of any 
               of Buyer's obligations contained in the 
               above-designated collective bargaining agreements after 
               Closing. 
       Nothing in this Section or elsewhere in this Agreement is 
       intended to create any rights in any person other than a 
       party to this Agreement. 

       Buyer shall assume all liability and forever protect and 
       hold harmless Seller against and in respect to any and all 
       liabilities, costs and expenses (including, but not 
       limited to, reasonable attorneys' fees) incurred by Seller 
       as a result of any alleged breach by Buyer of any of 
       Buyer's obligations under the WARN Act or any similar 
       state statute to the extent required after Closing.  
       Seller Parties shall retain all such liability for and 
       forever protect and hold harmless Buyer against and in 
       respect to any and all liabilities, costs and expenses 
       (including, but not limited to, reasonable attorneys' 
       fees) incurred by Buyer as a result of any alleged breach 
       by Seller Parties or either of them of any of Seller 
       Parties' obligations under the WARN Act or any similar 
       state statute to the extent required before Closing. 

                              -28-

13.    Postclosing Receipts. 
       After the Closing, Seller will immediately notify and 
       transfer to Buyer any payments or other receipts it 
       receives with respect to any of the Purchased Assets 
       except for any Excluded Assets as shown on Schedule 1.  
       Pending any such transfer, Seller will segregate any such 
       payments from its other assets and will clearly mark or 
       designate them as the property of Buyer. 

14.    Indemnification. 
14.1   Seller Parties, jointly and severally, shall defend, 
       indemnify, and hold harmless Buyer, SEMCO Energy, Inc. and 
       their affiliates and their directors, officers, 
       shareholders, successors, and assigns from and against any 
       and all costs, losses, claims, suits, actions, 
       assessments, diminution in value, liabilities, fines, 
       penalties, damages (compensatory, consequential, and 
       other), and expenses (including reasonable legal fees) in 
       connection with or resulting from: 
       a.      All debts, liabilities, and obligations of Seller, 
               whether accrued, absolute, contingent, known, 
               unknown, or otherwise, but excluding any Assumed 
               Liabilities and the Kniff Dividend. 
       b.      Any material inaccuracy in any representation or 
               material breach of any warranty of Seller Parties 
               contained in this Agreement or any Related 
               Agreement. 
       c.      Any material failure by Seller Parties to perform 
               or observe in full, or to have performed or 
               observed in full, any covenant, agreement, or 
               condition to be performed or observed by the 
               Seller Parties under this Agreement or any Related 
               Agreement. 
       d.      Any liabilities or obligations of Seller Parties 
               or predecessors, including, without limitation, 
               reasonable costs of cleanup, containment or other 
               remediation, arising from or under any 
               Environmental Law (as defined in Section 10.22) 
               and arising out of or relating to the operation of 
               the business of Seller Parties or the ownership, 
               operation or conditions at any time prior to the 
               Closing Date of the Leased Premises, Leased 
               Equipment, Purchased Assets or any other 
               properties and assets in which Seller Parties or 
               either of them has had an interest or use of any 
               kind. 
       e.      Federal Income Tax. 
       f.      Michigan Single Business Tax. 
14.2   Seller Parties  will have no liability under this Section 
       14, other than with respect to Sections 10.19 and 10.22 
       unless on or before two years after Closing Buyer notifies 
       Seller Parties of a claim specifying the factual basis of 
       
                              -29-

       that claim in reasonable detail to the extent then known 
       by Buyer.  A claim with respect to Section 10.19 may be 
       made at any time until the applicable statute of 
       limitations has run.  A claim with respect to Section 
       10.22 may be made on or before five (5) years after 
       Closing. 
14.3   Seller Parties will have no liability under this Section 
       14 until the total of all damages with respect to such 
       matters exceeds $25,000 and then only for the amount by 
       which such damages exceed $25,000.  Seller Parties shall 
       have no liability in excess of $1,540,000 under this 
       Section 14. 
14.4   Upon notice to Seller Parties  specifying in reasonable 
       detail the basis for such set-off, and subject to the 
       provisions of Sections 14.5 and 14.6, Buyer may set off 
       any amount to which it may be entitled under this Section 
       14 against amounts otherwise payable under the Consulting 
       Agreement and Noncompetition Agreement with Stewart Kniff 
       or may give notice of a Claim in such amount under the 
       Escrow Agreement.  Neither the exercise of nor the failure 
       to exercise such right of set-off or to give a notice of a 
       Claim under the Escrow Agreement will constitute an 
       election of remedies or limit Buyer in any manner in the 
       enforcement of any other remedies that may be available to 
       it. 
14.5   Procedure For Indemnification--Third Party Claims
       (a)     If Buyer is entitled to indemnification under this 
               Section 14, Buyer shall, with reasonable 
               promptness after obtaining knowledge of the claim, 
               provide Seller Parties with written notice of any 
               third party action, suit, proceeding, claim, 
               demand or assessment that may be subject to the 
               indemnification provisions of this Section 14 
               (collectively, "Third Party Claims"), including, 
               in reasonable detail, the basis for the claim, the 
               nature of the Damages and a good faith estimate of 
               the amount of Damages.  The Seller Parties shall 
               have Thirty (30) days after their receipt of the 
               notice of Third Party Claims to notify Buyer in 
               writing whether the Seller Partes agree that the 
               Third Party Claim is subject to indemnification 
               under this Section 14 and, if so, whether the Seller 
               Parties elect to undertake, conduct and control, 
               through legal counsel of their choice, which legal 
               counsel shall be subject to the consent of the 
               Buyer, which consent shall not be unreasonably 
               withheld, and at their sole risk and expense, the 
               good faith settlement or defense of the Third 
               Party Claim. 




                              -30-

       (b)     If within Fifteen (15) days after their receipt of 
               the notice of Third Party Claim, the Seller 
               Partners notify Buyer that they elect to undertake 
               the good faith settlement or defense of the Third 
               Party Claim, Buyer shall cooperate reasonably with 
               the Seller Parties in connection therewith 
               including, without limitation, by making available 
               to the Seller Partners all relevant information 
               material to the defense of the Third Party Claim.  
               Buyer shall be entitled to participate in the 
               settlement or defense of the Third Party Claim 
               through legal counsel chosen by Buyer, at its 
               expense, and to approve any proposed settlement 
               that would impose any obligation or duty on Buyer, 
               which approval may, in the sole discretion of the 
               Seller Parties, be withheld.  So long as the 
               Seller Parties are contesting the Third Party 
               Claim in good faith and with reasonable diligence, 
               Buyer shall not pay or settle the Third Party 
               Claim.  Notwithstanding the foregoing, Buyer shall 
               have the right to pay or settle any Third Party 
               Claim at any time, provided that in such event it 
               waives any right to indemnification therefor by 
               the Seller Parties. 
       (c)     If Seller Parties do not provide notice that they 
               elect to undertake the good faith settlement or 
               defense of the Third Party Claim, or if the Seller 
               Parties fail to contest the Third Party Claim or 
               undertake or approve settlement, in good faith and 
               with reasonable diligence, Buyer shall thereafter 
               have the right to contest, settle or compromise 
               the Third Party Claim at its exclusive discretion, 
               at the risk and expense of the Seller Parties, and 
               the Seller Parties will thereby waive any claim, 
               defense or argument that Buyer's settlement or 
               defense of such Third Party Claim is in any respect 
               inadequate or unreasonable. 
       A party's failure to give timely notice will not 
       constitute a defense, in part or in whole, to any claim 
       for indemnification by such party, except if, and only to 
       the extent that, such failure results in any material 
       prejudice to the Seller Parties. 
14.6   Procedure for Indemnification - Non-Third Party Claims. 
       As to any other claim, the following procedures shall be 
       followed: 
       (a)     Buyer shall, with reasonable promptness, deliver 
               to the Seller Parties written notice of all claims 
               for indemnification under this Section 14, other 
               than Third Party Claims, including, in reasonable 
               detail, the basis for the claim, the nature of 
               Damages and a good faith estimate of the amount of 
               Damages. 

                              -31-

       (b)     The Seller Parties shall have Thirty (30) days 
               after their receipt of the claim notice to notify 
               Buyer in writing whether the Seller Parties accept 
               liability for all or any part of the Damages 
               described in the claim notice.  If the Seller 
               Parties do not so notify Buyer, Buyer shall be 
               deemed to accept liability for all the Damages 
               described in the claim notice. 
       (c)     A party's failure to give timely notice will not 
               constitute a defense, in part or in whole, to any 
               claim for indemnification by such party, except 
               if, and only to the extent that, such failure 
               results in any material prejudice to the 
               indemnifying party. 

15.    Expenses. 
       Each of the parties shall pay all of the costs that it 
       incurs incident to the preparation, execution, and 
       delivery of this Agreement and the performance of any 
       related obligations, whether or not the transactions 
       contemplated by this Agreement shall be consummated, 
       except that all such costs and all liabilities of Seller 
       other than the Assumed Liabilities, including, without 
       limitation, tax liabilities, shall be paid out of the 
       proceeds of the Purchase Price and shall not be paid out 
       of the Purchased Assets, except for legal and accounting 
       fees of up to $50,000 in the aggregate.  All costs and 
       expenses of the environmental investigation and 
       remediation work at Seller's Comstock Park site shall be 
       paid by Kniff, not paid out of the Purchased Assets. 

16.    Risk of Loss 
       The risk of loss of or damage to the Purchased Assets from 
       fire or other casualty or cause shall be on Seller at all 
       times up to the Closing, and it shall be the 
       responsibility of Seller to repair, or cause to be 
       repaired, and to restore the property to the condition it 
       was before the loss or damage. 

17.    Seller's Name. 
       From and after the Closing Date, Buyer shall have the 
       right to use in or in connection with the conduct of any 
       business (whether carried on by it directly or through any 
       related corporation) the name "Sub-Surface Construction 
       Company " ("Name"); any part or portion of the Name, 
       either alone or in combination with one or more other 
       words; or any variation of the Name.  Seller Parties 
       warrant to Buyer that they have taken all necessary action 
       to protect the Name in the State of Michigan and agree to 
       take or cause to be taken any and all steps or actions 
       that shall be or become permissible, proper, or convenient 
       to enable or permit Buyer to use the Name, or any part or 
       
                              -32-

       portion of the Name, either alone or in combination with 
       one or more other words.  It is contemplated that on or as 
       soon as practicable after the Closing Date, Seller will 
       change its name.  After the Closing Date, Seller Parties 
       agree that they will not use the Name either directly or 
       indirectly, either alone or in combination with one or 
       more other words, in or in connection with any business, 
       activities, or operations that Seller Parties or either of 
       them directly or indirectly carry on or conduct. 

18.    Termination. 
18.1   This Agreement may be terminated at any time before the 
       Closing Date as follows: 
       (a)     By Buyer and Seller Parties in a written 
               instrument. 
       (b)     By either Buyer or Seller Parties if the Closing 
               does not occur on the Closing Date. 
       (c)     By Buyer or Seller Parties if there has been a 
               material breach of any of the representations or 
               warranties set forth in this Agreement on the part 
               of the other, and this breach by its nature cannot 
               be cured before the Closing. 
       (d)     By Buyer or Seller Parties if there has been a 
               breach of any of the covenants or agreements set 
               forth in this Agreement on the part of the other, 
               and this breach is not cured within 10 business 
               days after the breaching party or parties receive 
               written notice of the breach from the other party. 
18.2   If terminated as provided in Section 18.1, this Agreement 
       shall forthwith become void and have no effect, except for 
       Sections 18.3 and 19, and except that no party shall be 
       relieved or released from any liabilities or damages 
       arising out of the party's breach of any provision of this 
       Agreement. 
18.3   Buyer, on the one hand, and the Seller Parties jointly and 
       severally, on the other hand, warrant and agree that if 
       this Agreement is terminated pursuant to Section 18.1, 
       each party will not, during the one-year period following 
       the termination, directly or indirectly solicit any 
       employee of the other party to leave the other party's 
       employment. 

19.    Miscellaneous Provisions. 
19.1   REPRESENTATIONS AND WARRANTIES. 
       Except with respect to the representations and warranties 
       of Seller Parties under Sections 10.19 and 10.22, all 
       representations, warranties, and agreements made by the 
       parties pursuant to this Agreement shall survive for a 
       period of two years following the consummation of the 
       transactions contemplated by this Agreement.  The 
       representations and warranties of Seller Parties under 
       Section 10.19 shall survive until the applicable statute 
       of limitations shall have run and under Section 10.22 
       shall survive for five (5) years. 

                              -33-

19.2   NOTICES. 
       All notices, demands, and requests required or permitted 
       to be given under the provisions of this Agreement shall 
       be in writing and shall be deemed given (a) when 
       personally delivered or sent by facsimile transmission to 
       the party to be given the notice or other communication or 
       (b) on the business day following the day such notice or 
       other communication is sent by overnight courier to the 
       following: 

       if to Seller Parties:  Mr. Stewart Kniff 
                              1999 Sherwood 
                              Norton Shores, Michigan  49441 
                              ("Kniff") 

       with a copy to: John W. McNeil 
                       Miller, Johnson, Snell & Cummiskey, P.L.C. 
                       800 Calder Plaza Building 
                       Grand Rapids, Michigan  49503 
                       Facsimile No.:  (616) 831-1701 

       if to Buyer:    SEMCO Energy Construction Co. 
                       405 Water St. 
                       Port Huron, Michigan ("SEMCO")       

                       Attention:  President 

                       Facsimile No.:   810-989-4099 

       with a copy to: Arnold R. Madigan     
                       Attorney at Law 
                       303 East 17th Avenue, Suite 700 
                       Denver, Colorado 80203-1260 

       Facsimile No.:  (303) 894-0756 

       or to such other address or facsimile number that the 
       parties may designate in writing. 

19.3   Assignment. 
       Neither the Seller Parties nor Buyer shall assign this 
       Agreement, or any interest in it, without the prior 
       written consent of the other, except that Buyer may assign 
       any or all of its rights under this Agreement to any 
       affiliate without Seller Parties' consent. 
19.4   Parties in Interest. 
       This Agreement shall inure to the benefit of, and be 
       binding on, the named parties and their respective 
       successors and permitted assigns, but not any other 
       person. 
19.5   Choice of Law. 
       This Agreement shall be governed, construed, and enforced 
       in accordance with the laws of the State of Michigan. 

                              -34-

19.6   Counterparts. 
       This Agreement may be signed in any number of counterparts 
       with the same effect as if the signature on each 
       counterpart were on the same instrument. 
19.7   Entire Agreement. 
       This Agreement and all related documents, schedules, 
       exhibits, or certificates represent the entire 
       understanding and agreement between the parties with 
       respect to the subject matter and supersede all prior 
       agreements or negotiations between the parties.  This 
       Agreement may be amended, supplemented, or changed only by 
       an agreement in writing that makes specific reference to 
       this Agreement or the agreements delivered pursuant to it 
       and that is signed by the party against whom enforcement 
       of any such amendment, supplement, or modification is 
       sought. 
19.8   Arbitration. 
       (a)     Any dispute, controversy, or claim arising out of 
               or relating to this Agreement or relating to the 
               breach, termination, or invalidity of this 
               Agreement, whether arising in contract, tort, or 
               otherwise, shall at the request of any party be 
               resolved in binding arbitration.  Any arbitration 
               shall proceed in accordance with Title 9 of the 
               United States Code, as it may be amended or 
               recodified from time to time ("Title 9"), and the 
               current Commercial Arbitration Rules (the 
               "Arbitration Rules") of the American Arbitration 
               Association ("AAA") to the extent that Title 9 and 
               the Arbitration Rules do not conflict with any 
               provision of this Section 19.8. 
       (b)     No provision of or the exercise of any rights 
               under this Section 19.8 shall limit the right of 
               any party to seek and obtain provisional or 
               ancillary remedies (such as injunctive relief, 
               attachment, or the appointment of a receiver) from 
               any court having jurisdiction before, during, or 
               after the pendency of an arbitration proceeding 
               under this Section.  The institution and 
               maintenance of any such action or proceeding shall 
               not constitute a waiver of the right of any party 
               (including the party taking the action or 
               instituting the proceeding) to submit a dispute, 
               controversy, or claim to arbitration under this 
               Section. 
       (c)     Any award, order, or judgment made pursuant to 
               arbitration shall be deemed final and may be 
               entered in any court having jurisdiction over the 
               enforcement of the award, order, or judgment.  
               Each party agrees to submit to the jurisdiction of 
               any court for purposes of the enforcement of the 
               award, order, or judgment. 

                              -35-

       (d)     The arbitration shall be held before one 
               arbitrator knowledgeable in the general subject 
               matter of the dispute, controversy, or claim and 
               selected by AAA in accordance with the Arbitration 
               Rules, except that any arbitration in which the 
               disputed, controverted, or claimed amount (as 
               reflected on the demand for arbitration, as the 
               same may be amended) exceeds $1,000,000.00 shall 
               be held before three arbitrators, one arbitrator 
               being selected by Buyer, one by the Seller 
               Parties, and the third by the other two from a panel of 
               persons identified by AAA who are knowledgeable in the 
               general subject matter of the dispute, controversy, or 
               claim. 
       (e)     The arbitration shall be held at the office of AAA 
               located in Southfield, Michigan (as the same may 
               be from time to time relocated), or at another 
               place the parties agree on. 
       (f)     In any arbitration proceeding under this Section 
               19.8, subject to the award of the arbitrator(s), 
               each party shall pay all its own expenses, an 
               equal share of the fees and expenses of the 
               arbitrator, and, if applicable, the fees and 
               expenses of its own appointed arbitrator.  The 
               arbitrator(s) shall have the power to award 
               recovery of costs and fees (including reasonable 
               attorney fees, administrative and AAA fees, and 
               arbitrators' fees) among the parties as the 
               arbitrators determine to be equitable under the 
               circumstances. 
       (g)     The interpretation and construction of this 
               Section 19.8, including, but not limited to, its 
               validity and enforceability, shall be governed by 
               Title 9 of the U.S. Code, notwithstanding the 
               choice of law set forth in Section 19.5 of this 
               Agreement. 

20.    Right of First Refusal 
       For a period of four years from the Closing, Kniff shall 
       have a Right of First Refusal to repurchase the Purchased 
       Assets if Buyer determines to sell the Purchased Assets to 
       a third party. This Right of First Refusal shall not apply 
       to mergers or other combinations or to transfers to 
       affiliates of Buyer. 









                              -36-

       The parties have executed this Agreement on the date set 
forth on the first page of this Agreement. 

WITNESSES: 
                                   SELLER 

John W. McNeil                     By Stewart Kniff 
                                   Its:  President
_____________________________
                                   SELLER's SOLE SHAREHOLDER 

John W. McNeil                     Stewart Kniff 

_____________________________

                                   BUYER 

Attest:  A.R. Madigan              By L. L. Sherman
                                   Its:  President
_____________________________

































                              -37-