Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products; Stauffer; and Montrose

Olin, Stauffer, and Montrose collectively operate a groundwater treatment system which was originally installed in 1983.
Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products; Stauffer; and Montrose collectively operate a groundwater treatment system.

Background

Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products

From 1945 to 1988, Stauffer Chemical Company (Stauffer) operated a chemical manufacturing plant on the western portion of Basic Magnesium Incorporated, an industrial complex located near Henderson, Nevada that is currently known as the Black Mountain Industrial Center.  In 1988 Stauffer ceased its operations after it was purchased by Pioneer Chlor Alkali Company, Inc.  Pioneer was subsequently purchased by Olin Corporation in 2007, and is now doing business as Olin Chlor Alkali Products.  In 1983, State of Nevada, Stauffer, and Montrose entered into Consent Order for the installation and operation of a Groundwater Treatment System (GWTS) north of the Stauffer chemical plant to prevent the downgradient migration of groundwater that was discovered to be contaminated.  The GWTS is currently active and is collectively operated by Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products, Stauffer, and Montrose.

Stauffer

In 1942, Basic Magnesium Incorporated (BMI) began production at a facility funded by the U.S. government for the production of magnesium near Henderson, Nevada.  The western part of the BMI property included a chlorine and caustic plant which was a necessary component for the production of magnesium.  The BMI magnesium production plant was closed in 1944, but the chlorine and caustic plant continued to operate.  Stauffer Chemical Company (Stauffer) leased the chlorine and caustic plant from the U.S. Government in 1945, and purchased the western part of the BMI property in 1952.  Beginning in 1947, Stauffer leased 36 acres of its property to Montrose Chemical Corporation of California (Montrose) for the construction and operation of a chemical manufacturing plant.  After a series of environmental investigations identified that the groundwater at the site was contaminated with volatile organic compounds, a Groundwater Treatment System (GWTS) was installed downgradient of the plant in 1983 to prevent migration of the impacted groundwater.  Stauffer ceased operations at the property in 1988 when the property was purchased by Pioneer Chlor Alkali, Inc.  Many of the waste management areas that were used by Stauffer were decommissioned in subsequent years and are now inactive.  The GWTS is currently active and is collectively operated by Montrose, Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products, and Stauffer Management Company, LLC.

Montrose

In 1947, Montrose Chemical Corporation of California (Montrose) began operating a new chemical manufacturing plant near Henderson, Nevada.  The plant was constructed on land leased from Stauffer Chemical Company near the western portion of an industrial complex currently known as the Black Mountain Industrial (BMI) Center.  The Montrose plant specialized in the production of a variety of chemicals. Montrose ceased all operations at the plant in 1983, and they demolished the plant in 1984.  Various plant and site closure activities continued until 1989.  In order to prevent groundwater contaminated with volatile organic compounds (VOCs) from migrating off-site, a Groundwater Treatment System (GWTS) was installed downgradient of the plant in 1983.  The GWTS is currently active and is collectively operated by Montrose, Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products, and Stauffer.

Extraction Well M-3 Installation
Extraction Well M-3 Installation

Current Status

The Companies have maintained and operated a groundwater extraction and treatment system since November of 1983.  In the last half of 2016, the system treated over 29 million gallons of groundwater and removed approximately 5,000 lbs of dissolved VOCs.  Since its startup, the system has removed approximately 1,000 tons of VOCs.

Routine groundwater monitoring and analysis currently demonstrates GWTS effectively contains contaminants on the industrial site and the GWTS operations continue to meet Consent Order requirements.


Downloadable Documents

Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products; Stauffer; and Montrose

2016 Comprehensive Groundwater Data Evaluation Report (PDF, 12.4 MB)*

Groundwater Treatment System Semi-Annual Operations Report - July-December 2016 (PDF, 10.3 MB)*

Groundwater Treatment System Semi-Annual Operations Report - January-June 2016 (PDF, 9.29 MB)*

*Laboratory reports have been omitted from these documents.  For a copy of the full report, please contact Chad Schoop.

Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products; and Stauffer

Pioneer Americas, LLC d/b/a Olin Chlor Alkali Products; and Stauffer Fact Sheet (217 KB)

Second Quarter 2017 Progress Report (PDF, 948 KB)

First Quarter 2017 Progress Report (PDF, 1.07 MB)

Fourth Quarter 2016 Progress Report (PDF, 1.18 MB)

Third Quarter 2016 Progress Report (PDF, 1.28 MB)

Montrose

Montrose Fact Sheet (PDF, 200 KB)

2016 Annual Closed Ponds Post-Closure Monitoring Report (PDF, 3.44 MB)

Environmental Conditions Investigation Program Second Quarter 2017 Progress Report (PDF, 283 KB)

Environmental Conditions Investigation Program First Quarter 2017 Progress Report (PDF, 285 KB)

Environmental Conditions Investigation Program Fourth Quarter 2016 Progress Report (PDF, 284 KB)

Environmental Conditions Investigation Program Third Quarter 2016 Progress Report (PDF, 322 KB)


Recent News

March 29, 2016Layoffs coming as historic Henderson factory stops making chlorine - Las Vegas Review-Journal**

**Third-party source

Disclaimer: The Nevada Division of Environmental Protection does not offer any guarantee, express or implied, regarding the accuracy, validity, or completeness of the information presented by a third-party.  Furthermore, the views or opinions expressed by a third-party do not reflect the views or opinions of the Division.


Additional Information

For more information, please contact Chad Schoop at cschoop [at] ndep.nv.gov or 702-486-2850 x248.

For Bureau of Industrial Site Cleanup file review requests, please fill out the Public Records Request Form and email it to Christa Smaling at csmaling [at] ndep.nv.gov.

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