HomeMy WebLinkAboutMonitoring Report Approval Letter qr Minnesota Pollution Control Agency
August 21, 2002
Mr. Michael J. Pudil
President and CEO
Washington Scientific Industries, Inc.
18151 Territorial Rd
Osseo, MN 55369
RE: Washington Scientific Site II, 2605 West Wayzata Boulevard,Orono
MPCA Project Number VP 10021
Monitoring Report Approval Letter
Dear Mr. Pudil:
The Minnesota Pollution Control Agency(MPCA) staff in the Voluntary Investigation
and Cleanup (VIC)Unit are working cooperatively with you to address concerns
associated with contaminated ground water at the Washington Scientific facility located
at the above referenced address in Orono (the Site). This Site is being administered
through the VIC Unit as the Washington Scientific H Site with project number VP10021.
The MPCA staff have reviewed the "Ground Water Sampling Results, June 2002 Event,"
(the Report)prepared by Peer Environmental &Engineering Resources, Inc. (PEER),
dated June 20, 2002.
The Report summarizes results from sampling of the two sentinel wells MW-13 and
MW-14; and wells MW-4D, MW-10, MW-11, and MW-15. No volatile organic
compounds (VOCs) were detected in MW-10, MW-11, MW-12, MW-13, or MW-14.
The VOC 1,1-dichloroethane was detected in MW-15 at 2.6 micrograms per liter(ug/1)
and the total VOCs for MW-4D screened adjacent to the receptor trench was
approximately 1,000 ug/L. The overall results support that the VOC concentrations are
relatively consistent and stable. The next ground water monitoring event is scheduled for
June 2003.
The Report proposes that dismantling and abandonment of the ground water remediation
system be considered if ground water concentration trends remain stable after the next
monitoring event in 2003. The Report is hereby approved.
520 Lafayette Rd. N.; St. Paul, MN 55155-4194; (651)296-6300(Voice); (651)282-5332(TTY)
St. Paul • Brainerd • Detroit Lakes • Duluth • Mankato • Marshall • Rochester • Willmar; www.pca.state.mn.us
Equal Opportunity Employer • Printed on recycled paper containing at least 20%fibers from paper recycled by consumers.
Mr. Michael J. Pudil
Page 2
August 21, 2002
If you have questions regarding this letter or the Site please contact me at (651) 297-5573
or Patrice Jensen at (651)296-7744.
Since /J
Richard M. Jolley, PG
Senior Hydrogeologist
Voluntary Investigation and Cleanup Unit
Superfund Section
Majors and Remediation Division
RMJ/jmp
cc: Jim White, City of Orono
Ken Larsen,Peer Environmental
Maurice J. Wagener, WJM Properties, LLC
Dana Wagner,Liesch Associates