DSHW-2018-005881 - 0901a0688085c01d

DSHW-2018-005881 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144880 • Salt Lake City, UT 84114-4880 Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov Printed on 100% recycled paper
State of Utah
GARY R. HERBERT Governor SPENCER J. COX
Lieutenant Governor
Department of
Environmental Quality
Alan Matheson Executive Director DIVISION OF WASTE MANAGEMENT AND RADIATION CONTROL Scott T. Anderson Director
July 5, 2018

Rebecca Studenka Senior Project Geologist Wasatch Environmental, Inc. 2410 West California Avenue
Salt Lake City, Utah 84104
RE: Request for a No Further Action (NFA) Terrafirma Landscaping (Pleasant Grove Nursery) 821 West 700 South, Pleasant Grove, Utah

Dear Ms. Studenka: The Division of Waste Management and Radiation Control has completed its review of the results of the additional investigation conducted at the Terrafirma Facility. The additional investigation was in
support of a request for an NFA designation for the facility.
The additional investigation focused on total metal analysis and hexavalent chromium (CrVI) to evaluate if any potential source areas still existed at the site after impacted soil removal. Previous site investigations had detected CrVI in groundwater at concentrations in excess of unrestricted water use
criterion. As part of this investigation, monitoring wells were installed and sampled to evaluate the
effectiveness of impacted soil removal on groundwater quality. Results of a human health and ecological risk assessment conducted using data collected concluded that risks to a future potential resident at the site were acceptable and there were no adverse risks to potential future ecological receptors in accordance with Utah Administrative Code R315-101.
Based on the results of the various investigations conducted at the site, the Division concludes that the Terrafirma Facility meets all the requirements necessary for an NFA status. Accordingly, the request for an NFA designation is hereby granted.
(Over)

If you have any questions, please call Eric Baiden at [phone].

Sincerely,

Scott T. Anderson, Director
Division of Solid and Hazardous Waste

STA/EB/km
c: Ralph Clegg, EHS, MPA, Health Officer, Utah County Health Department
Bryce C. Larsen, MPA, LEHS, Environmental Health Director, Utah County Health Depart
Amy Hensley, USEPA, Region 8