TRC Awarded Patent for Robust Environmental Remediation Solution

Company's Sediment Cap Design Stops Contaminant Releases

Marketwired

LOWELL, MA--(Marketwired - Jun 5, 2013) - TRC Companies, Inc. (NYSE: TRR) has been awarded a patent by the U.S. Patent and Trademark Office for its cap design that prevents releases of coal tar, petroleum and other non-aqueous phase liquids (NAPL) from contaminated sediment at former manufactured gas plant (MGP) sites. While conventional sediment caps only delay eventual contaminant releases, TRC's cap design stops NAPL migration.

From the late 1800s to the mid-1900s, manufactured gas plants (MGP) across the U.S. supplied homes and industry with fuel for heating, cooking, and lighting. The process to create the fuel at the industrial plants resulted in the release of residues including tar, sludge, oils and other wastes. Although many of the by-products were recycled, excess residues remain at thousands of MGP sites.

"MGP contamination is a significant issue nationwide and we have found a more effective way to manage it," said Chris Vincze, President and Chief Executive Officer of TRC. "Our solution helps reduce client costs, protects the public health, and preserves the environment. We're enormously proud of our staff for this innovative achievement."

Gas that bubbles up from the degrading organic matter not only causes the migration of contaminants, but also leads to the failure of conventional sediment caps. TRC's newly patented cap design stops NAPL migration and safely vents the gas to the atmosphere.

This patent is the first in a series of TRC applications covering cap designs for managing gas and contaminant releases at sediment sites. Two full-scale applications of this design have already been constructed for TRC utility clients. The cap is currently being used at a site in Ann Arbor, Michigan along the Huron River, and at a site in Bangor, Maine along the Penobscot River.

About TRC
A pioneer in groundbreaking scientific and engineering developments since the 1960s, TRC is a national engineering, consulting and construction management firm that provides integrated services to the energy, environmental and infrastructure markets. TRC serves a broad range of clients in government and industry, implementing complex projects from initial concept to delivery and operation. TRC delivers results that enable clients to achieve success in a complex and changing world. For more information and updates from the Company, visit TRC's website at www.TRCsolutions.com and follow TRC on Twitter at @TRC_Companies and on LinkedIn.

Forward-Looking Statements
Certain 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 TRC's future expectations, contain projections of the Company's future results of operations or of its financial condition, or state other "forward-looking" information. TRC believes that it is important to communicate its future expectations to its investors. However, there may be events in the future that the Company is not able to accurately predict or control and that may cause its actual results to differ materially from the expectations described in its 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 uncertainty of TRC's operational and growth strategies; circumstances which could create large cash outflows, such as contract losses, litigation, uncollectible receivables and income tax assessments; regulatory uncertainty; the availability of funding for government projects; the level of demand for TRC's services; product acceptance; industry-wide competitive factors; the ability to continue to attract and retain highly skilled and qualified personnel; the availability and adequacy of insurance; and general political or economic conditions. Furthermore, market trends are subject to changes, which could adversely affect future results. See the risk factors and additional discussion in TRC's Annual Report on Form 10-K for the fiscal year ended June 30, 2012, Quarterly Reports on Form 10-Q, and other factors detailed from time to time in the Company's other filings with the Securities and Exchange Commission.

Contact:
Company
Angela Cincotta
(978) 656-3594
acincotta@trcsolutions.com

Catherine Stanley
(978) 656-3538
cstanley@trcsolutions.com

Investor
Sharon Merrill Associates
(617) 542-5300
trr@investorrelations.com

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