Skip to main content

Conn-Selmer, Inc. | Hazardous Waste Site


1310 W Fairway Dr.
Nogales, AZ  85621

Discovery Date:


Contaminants of Concern (COCs):

  • Volatile organic compounds (VOCs) including TCE, 1,1,1,-TCA, 1,1-DCE, cis 1,2 DCE, 1,1-DCA, , vinyl chloride
  • Heavy metals (cadmium, chromium, nickel)

Affected Media:

  • Soil
  • Groundwater

What are My Health Risks: 

For Soil | There is little to no health risk unless there is contact with skin or ingestion of contaminated soil.

For Groundwater | If you are connected to a public water system (PWS) there is little to no risk of impact from exceedances because the water is filtered through the PWS for residential and business use. | View Drinking Water Notices > 

If you have a private well in the vicinity of the exceedance, we encourage you to test the well water.
Not sure what to test for? | 
Learn More > 

Site Summary:  

The site is contaminated with VOCs due to storage operations conducted from 1966 through 1985. Conn-Selmer, Inc. (CSI) (formerly United Musical Instruments, Inc.) operates a “pump and treat” system to remove VOCs from the groundwater.  The treated groundwater is then sent to an offsite impoundment for reuse by the City of Nogales.

Corrective Action:

  • Final Closure Report – August 1986
  • RCRA Facility Assessment – 1987
  • EPA Preliminary Assessment – March 1996
  • Interim Remediation Plan – June 1998
  • Post-closure Plan – March 2009
  • Corrective Action Permit – June 2009