VRP Notices

PUBLIC NOTICE | Risk Assessment & No Further Action Determination for the Morenci Schools Voluntary Remediation Program (VRP) Site

Freeport Minerals Corporation (FMC) is requesting a No Further Action (NFA) determination from ADEQ for the Morenci Schools Site located at 473 Stadium Drive in Morenci, Arizona.1 The site is 72 acres and comprised of an elementary, middle, and high school in addition to a school district administration building, bus barn, parking lots, play areas, and sports fields. The schools were built on a former tailings pond that was once operated by the Morenci Mine.

The site is currently managed under the ADEQ Voluntary Remediation Program (VRP). FMC sampled soil/tailings to assess whether the material poses an unacceptable risk to human health and the environment. Arsenic was identified as the primary contaminant of concern. The site-wide mean and 95 percent upper confidence limits on the mean concentrations calculated for surface soil/tailings, and for soil/tailings across sampled depths are below the Soil Remediation Level of 10 mg/kg. The resulting risk estimate was also below the de minimis cancer risk threshold of 1 x 10-6. Regulatory closure of the site is based on a risk evaluation for the current property use.

A determination of NFA means that no further action shall be taken by ADEQ to remediate or require remediation of the site or portion of the site covered by the no further action determination, except in limited circumstances described in statute | View A.R.S. 49-181(E) >

Review Documents & Site Page

Original Public Notice | View >
Probabilistic Risk Assessment | View >
No Further Action Request | View >

Morenci Schools VRP Site Overview | View >

You may also review the above documentation at the ADEQ Record Center | Learn How >

Public Comment Period 

Dates: March 3, 2021 – April 2, 2021

Comments may be submitted as follows:

     By Email to ADEQ | Send Email >
     By Mail to ADEQ (Must be postmarked or received by April 2, 2021):
       Attention: Nichole Osuch
       ADEQ Voluntary Remediation Program
       1110 W. Washington St.
       Phoenix, AZ 85007

or

     By Email to Freeport Minerals Corporation | Send Email >
     By Mail to Freeport Minerals Corporation (Must be postmarked or received by April 2, 2021):
       Attention: 
Jennifer Laggan
       Freeport Minerals Corporation
       333 N. Central Ave.
       Phoenix, AZ 85004

PUBLIC NOTICE | No Further Action Determination for the APS Prescott Manufactured Gas Plant Substation Voluntary Remediation Program (VRP) Site

Arizona Public Service Company (APS) has submitted a request for a No Further Action (NFA) determination to the Arizona Department of Environmental Quality (ADEQ) Voluntary Remediation Program (VRP) for the APS Prescott Manufactured Gas Plant (MGP) Substation VRP site.  The NFA requests closure for soil and was submitted in accordance with Arizona Revised Statutes § 49-181.

The APS Prescott MGP Substation VRP site consists of soils impacted by historic MGP operations located in Prescott, Arizona. Contaminants of concern at the site are a group of compounds commonly known as polynuclear aromatic hydrocarbons.

A determination of NFA means that no further action shall be taken by ADEQ to remediate or require remediation of the site or portion of the site covered by the no further action determination, except in limited circumstances described in statute | View A.R.S. 49-181(E) >

Review Documents & Site Page

Original Public Notice | View >
Remedial Action/No Further Action Report | View >

APS Prescott MGP Substation VRP Site Overview | View >

You may also review the above documentation at the ADEQ Record Center | Learn How >

Public Comment Period 

Dates: Feb. 23, 2021 – March 23, 2021

Comments may be submitted as follows:

     By Email to ADEQ | Send Email >
     By Mail to ADEQ (Must be postmarked or received by March 23, 2021):
       Attention: Nichole Osuch
       ADEQ Voluntary Remediation Program
       1110 W. Washington St.
       Phoenix, AZ 85007

or

     By Email to APS | Send Email >

PUBLIC NOTICE | Probabilistic Risk Assessment Available for the Clifton Soil Program Voluntary Remediation Program (VRP) Site

ADEQ Voluntary Remediation Program (VRP) has received a Probabilistic Risk Assessment (PRA) for the Clifton Soil Program (VRP Site Code 513293-00) VRP site located in the Town of Clifton, Arizona. The PRA was submitted in accordance with Arizona Revised Statutes §§ 49-175 and 49-176.

Proposed remedial activities at the Clifton Soil Program VRP site will consist of soil testing and remediation on eligible residential and commercial properties located in proximity to three former historic smelters located within the Town of Clifton. The PRA uses proven methodologies and parameters commonly accepted by the scientific community to establish site-specific soil remediation levels for the contaminants of concern, which include arsenic, copper and lead.

Review Documents & Site Page

Original Public Notice | View >
PRA | View >

Clifton Soil Program VRP Site Overview | View >

You may also review the above documentation at the ADEQ Record Center | Learn How >

Public Comment Period 

Dates: Feb. 10, 2021 – March 12, 2021

Comments may be submitted as follows:

     By Email to ADEQ | Send Email >
     By Mail to ADEQ (Must be postmarked or received by March 12, 2021):
       Attention: John Patricki
       ADEQ Voluntary Remediation Program
       1110 W. Washington St.
       Phoenix, AZ 85007

or

     By Email to Freeport Minerals Corporation | Send Email >
     By Mail to Freeport Minerals Corporation (Must be postmarked or received by March 12, 2021):
       Attention: Jennifer Laggan
       333 N. Central Ave.
       Phoenix, AZ 85004