SOUTH CAROLINA                                      Sublease for Suite 210 at
CHARLESTON COUNTY                                   4055 Faber Place Drive
                                                    The Executive Park
                                                    Faber Place


     This  Sublease  is  made  this  1st day of  August,  1996,  by and  between
ENVIROMETRICS,   INC.,  successor  by  merger  to  Trico   Envirometrics,   Inc.
("Sublessor") and TRICO ENGINEERING CONSULTANTS, INC. ("Sublessee");  and LPC of
SC, INC. (a subsidiary of The Liberty Corporation) ("Landlord").

                                   WITNESSETH:

     WHEREAS, Landlord leased approximately 9,094 square feet of office space to
Trico Envirometrics, Inc. described as Suite 102 (inclusive of Suite 210) of the
commercial  office  building  located at 4055 Faber Place Drive in The Executive
Park  at  Faber  Place  in  North  Charleston,   South  Carolina  (the  "Demised
Premises"),  pursuant to that certain  office lease dated  January 17, 1996 (the
"Lease"); and

     WHEREAS,   Envirometrics,   Inc.  is  the  successor  by  merger  to  Trico
Envirometrics, Inc., and therefore, is now the tenant under the Lease;

     WHEREAS,  Sublessee  desires to sublease a portion of the Demised  Premises
known as Suite 201  consisting  of  approximately  6243 square feet rentable and
Sublessor desires to sublet Suite 201 to Sublessee;

     WHEREAS,  Landlord  consents to this Sublease,  and all of the requirements
set forth in Section 10 of the Lease have been completely satisfied.

     NOW,  THEREFORE,  in  consideration  of the mutual  promises and agreements
contained  herein and other good and  valuable  consideration,  the  receipt and
sufficiency  of which are hereby  acknowledged,  the Sublessee  hereby takes and
leases from  Sublessor  approximately  6243 square feet  rentable in the Demised
Premises known as Suite 201 (the  "Premises") in the commercial  office building
located  at 4055  Faber  Place in The  Executive  Park at  Faber  Place in North
Charleston,  South Carolina,  according to the terms and conditions of the Lease
which is attached hereto as Exhibit A and  incorporated by reference as fully as
if set forth  herein.  All defined  terms  contained  in the Lease shall be used
herein  with  the  same  meaning  unless  otherwise  expressly  defined  herein.
Sublessee acknowledges that it has received a copy of the lease and has reviewed
it to its satisfaction. The parties agree as follows:

     1. Incorporation of Recitals. The above recitals are incorporated herein by
reference.

     2.  Incorporation of Lease Amendment.  Except as provided herein, the terms
and  conditions of the Lease are  incorporated  into this Sublease by reference.
All of the obligations contained in the Lease, except as modified

     and amended by this Sublease,  and all rights and privileges conferred upon
Sublessor  as tenant  therein,  are  hereby  also  conferred  and  imposed  upon
Sublessee.  Sublessee  covenants and agrees to fully and faithfully  perform the
terms and conditions of the Lease and this Sublease.  Sublessee  shall not do or
cause to be done or  suffer or permit  any act to be done  which  would or might
cause  the  Lease,  or the  rights  of  the  Sublessor  under  the  Lease  to be
endangered,  canceled,  terminated,  forfeited or surrendered, or which would or
might cause  Sublessor  to be in default  thereunder  or liable for any damages,
claim or penalty.

     3. Term; Payment of Rent. Sublessee shall lease the Premises from Sublessor
commencing as of February 1, 1996 and  continuing  until January 31, 1999 at the
following rent schedule:

Effective Dates       Rate            Annual            Monthly

02/01/96 - 01/31/97   $14.63         $91,335.09        $7,611.26
02/01/97 - 01/31/98   $15.86         $99,013.98        $8,251.16
02/01/98 - 01/31/99   $16.49         $102,947.07       $8,578.92

     such amounts listed above should be paid in advance on the fifteenth day of
each month during the term of this Sublease,  and shall be due and owing without
notice, demand, abatement, deduction or set-off.

     Rent and any other  charges to be paid by Sublessee  to  Sublessor  will be
paid when due at such times as are  specified  above  directly to Landlord  with
verification of payment to be sent to:

     c/o  Envirometrics,  Inc. 9229 University  Boulevard  Charleston,  SC 29406
Attention: Walter H. Elliott, III

     4. Indemnification.  Sublessee hereby agrees to defend, indemnify, and save
Sublessor harmless from any liability  resulting from any claim,  action or suit
made against Sublessor by Landlord in connection with Sublessee's  breach of the
Lease or this Sublease.

    5. Notices. Any notice, demand or other instrument or written communication
required  or  permitted  to be  given,  or  served  hereunder,  shall be made or
delivered  by hand  delivery  or by mailing  the same  certified  mail,  postage
prepaid, and, if to Sublessor addressed as follows:

                    c/o Envirometrics, Inc.
                    9229 University Boulevard
                    Charleston, SC 29406
                    Attention:      Walter H. Elliott, III

                  and to Sublessee addressed as follows:

                           Trico Engineering Consultants, Inc.
                           4055 Faber Place Drive, Suite 201
                           Charleston, SC 29405
                           Attention:      Andrew C. Gillette, Jr.

     7. Consent. Landlord hereby consents to the Sublease set forth herein. This
sublease may not be assigned,  sublet or otherwise transferred without the prior
written consent of Landlord as set forth in Section 1 0 of the Lease.

     8. Binding  Agreement.  This Sublease  applies to and inures to the benefit
of,  and  binds  all  parties   hereto  and  their   respective   heirs,   legal
representatives,  successors  and assigns.  This Sublease  shall be construed in
accordance with the laws of the State of South Carolina.

     IN WITNESS  WHEREOF,  the parties  herein  execute  this  Sublease  for the
purpose herein  expressed the day and year first written above.  Signed,  sealed
and delivered in the presence of:


WITNESSETH:                   SUBLESSOR:
                              ENVIROMETRICS, INC., successor by merger to Trico
                              Envirometrics, Inc.
                              By:

                              Name:        Walter H.  Elliott, III
                              Title:       President and CEO

                              SUBLESSEE:
                              TRICO ENGINEERING CONSULTANTS, INC.

                              By:

                              Name:  Andrew C. Gillette, Sr.
                              Title:       President