Broadbent Hosts the Nevada Mining Association’s Suppliers Committee Meeting

Posted by & filed under Cultural Resource Management, Environmental, News, Press Release.

Broadbent’s Reno office is proud to have hosted the April 2015 Nevada Mining Association’s Suppliers Committee Meeting. The meeting was well-attended with 35 participants from 20 companies. Broadbent and ArrowData each gave presentations on the specialized services they provide to the mining industry. At the end of the meeting attendees enjoyed ArrowData’s demonstration of one of their drones in action. After the demonstration everyone convened in Broadbent’s offices for an informal meet and greet, complete with cocktails and hors d’oeuvres. The event was fun, informative, and a great opportunity to meet some of the movers and shakers working with Nevada’s mining industry. For more information on the Nevada Mining Association visit their webpage. http://www.nevadamining.org/index.php

Case Study: Solvent Release Characterization & Remediation

Posted by & filed under Blog, Environmental, Planning and Permitting.

EISB System

In 2003, chlorinated volatile organic compounds (CVOCs) associated with dry cleaning operations were discovered in the groundwater beneath a former dry cleaning facility in Las Vegas, NV. Broadbent was contracted to conduct on- and off-site characterization activities. Broadbent prepared and implemented a detailed Site Characterization Work Plan (Work Plan) which included design, construction oversight, development, and soil and groundwater sample collection from seven groundwater monitor wells. Groundwater sample laboratory analytical results indicated the on- and off-site presence of dissolved tetrachloroethylene (PCE), trichloroethylene (TCE), dichloroethylene (DCE) and vinyl chloride (VC) constituent concentrations in groundwater in excess of their respective Maximum Contaminant Levels (MCLs). Broadbent prepared and implemented a subsequent Work Plan to monitor groundwater beneath the site and to conduct VC Read More »

Environmental Experience – Confidential Mine

Posted by & filed under Blog, Environmental.

broadbent safe employee

Broadbent has been working on this project since 2006. The company plays a key role in remediation operations at this historic mine site, a CERCLA site listed by the federal EPA on the National Priorities List (Superfund). Broadbent Reno Division Manager, Randy Miller, was the Project Manager from 2006 – 2010, and is the current Project Supervisor. At the site, the client is responsible for capturing and treating acid rock drainage from three seep/spring locations. Broadbent supports operations at the site by providing operations management, safety management, and system operators to operate the on-site treatment systems including a sulfate reducing bioreactor and high density sludge plant, both of which are designed to collect and treat acid rock drainage at the Read More »

Solvent Characterization and Remediation

Posted by & filed under Air Quality, Environmental.

Broadbent has provided a full suite of environmental consulting services to the State of Nevada, Division of Environmental Protection (NDEP), Bureau of Corrective Actions (BCA) through the Environmental Assessment, Mitigation, and Remediation (EAMR) contract, since 2006. Broadbent was awarded the EAMR contract, through a competitive proposal process, from 2006 – 2010 and again from 2010 – 2014. As part of the EAMR contract, overlapping both contract periods, Broadbent was tasked with public notification and characterization and mitigation of tetrachlorethylene (PCE) vapor intrusion into a residential neighborhood in Southern Nevada. Broadbent has worked closely with NDEP staff to inform residents of the potential PCE vapor intrusion issue, sample collection process, and the indoor air PCE mitigation system process by preparing public Read More »

Site Conceptual Model of Groundwater

Posted by & filed under Blog, Environmental, Water & Wastewater Facilities Operations.

Site concept model procedure

Broadbent was contracted by a major petroleum and energy company to provide a third party review and preparation of a Site Conceptual Model for a former aerospace facility in the Central Valley of California. Analysis of historical data indicated that former site operations activities had resulted in contaminant impacts to groundwater. Primary contaminants of concern (COCs included volatile organic compounds (VOCs). On the site, groundwater occurs at approximately 40 feet below ground surface (bgs) and flows towards the east. A soil vapor extraction (SVE) system was installed in 1999 and operated through 2000. A groundwater extraction and treatment system (GWETS) was also installed in 1999 and has operated continuously, since then. The objective of the scope of work performed was Read More »