Exhibit 99.1

Investor Contact:
Sharon Merrill Associates
(617) 542-5300
trr@investorrelations.com   Company Contact:
Carl Paschetag, CFO
(978) 970-5600
cpaschetag@trcsolutions.com

TRC Announces Delay in Filing of Form 10-K for Fiscal 2007

Lowell, MA. September 27, 2007 — TRC (NYSE: TRR) today announced that it is delaying the filing of its Annual Report on Form 10-K for the fiscal year ended June 30, 2007 with the Securities and Exchange Commission.

TRC is still in the process of finalizing its financial statements and completing its year-end audit and is unable to file its Form 10-K for the fiscal year ended June 30, 2007 within the prescribed time period.

“While we are working diligently to complete our financial audit as rapidly as possible, we are unable to report our fiscal 2007 results on time as a result of start-up issues associated with the recent implementation of our new enterprise-wide accounting software,” said TRC’s Chief Executive Officer Chris Vincze.  “This system, which consolidated all of our legacy systems onto one platform, will greatly improve our access to real-time data and enhance our reporting capabilities going forward.  We currently expect to file our 2007 10-K by the end of October.  We will issue a press release announcing a specific date for our year-end conference call in the coming weeks.”

About TRC
TRC is a customer-focused company that creates and implements sophisticated and innovative solutions to the challenges facing America’s environmental, infrastructure, power, and transportation markets. The Company is also a leading provider of technical, financial, risk management, and construction services to commercial and government customers across the country. For more information, visit TRC’s website at www.TRCsolutions.com.

Forward-Looking StatementsCertain statements in this press release may be forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. You can identify these statements by forward-looking words such as “may,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” or other words of similar import. You should consider statements that contain these words carefully because they discuss our future expectations, contain projections of our future results of operations or of our financial condition, or state other “forward-looking” information. We believe that it is important to communicate our future expectations to our investors. However, there may be events in the future that we are not able to accurately predict or control and that may cause our actual results to differ materially from the expectations we describe in our forward-looking statements. Investors are cautioned that all forward-looking statements involve risks and uncertainties, and actual results may differ materially from those discussed as a result of various factors, including, but not limited to, the availability and adequacy of insurance and bonding, the uncertainty of our operational and growth strategies, the challenges inherent in integrating newly acquired businesses, regulatory uncertainty, the availability of funding for government projects, the level of demand for our  services, product acceptance, industry-wide competitive factors, the ability to continue to attract and retain highly skilled and qualified personnel, recent changes in our  senior management, the results of outstanding litigation, risks arising from either failure to identify, or from identified material weaknesses in our internal controls over financial reporting or our inability to effectively remedy such weaknesses, our inability to comply with the terms of our credit facility and our lenders’ future unwillingness to waive our noncompliance, and general political or economic conditions.  Furthermore, market trends are subject to changes, which could adversely affect future results. See additional discussion in our Annual Report on Form 10-K/A for the fiscal year ended June 30, 2006, Quarterly Reports on Form 10-Q, and other factors detailed from time to time in our other filings with the Securities and Exchange Commission.