Facility Site ID: 771247 Cleanup Site ID: 447

Site Description

The school is located on former orchard property and was subject to historical pesticide applications. Soil samples taken in 2002 confirmed lead and arsenic at concentrations exceeding state cleanup levels.

After a Site Hazard Assessment, the site was ranked a “3” on the Hazardous Sites List. The Hazardous Sites List is a statewide list of contaminated properties. Sites can be ranked from a “1” to “5”. A rank of “1” is the highest level of environmental concern compared to other sites on the List, and a rank of “5” is the lowest.

Cleanup Activities

During the summer of 2008, Ecology conducted a cleanup and placed all contaminated soils under a geotextile fabric barrier. Then, six inches of clean topsoil were placed on top on the barrier fabric. This cleanup method, referred to as capping, is cost-effective and prevents human exposure to contaminated soil.

Following cleanup, an environmental covenant was recorded for the property with the Chelan County Assessor. The purpose of the environmental covenant is to provide a permanent legal record of the contamination that remains on the property, and to prevent activities at the site that might disturb or damage the soil cap.

Cleanup Complete

Based on the cleanup completed and the recording of the environmental covenant, Ecology has determined the site does not pose a threat to human health or the environment. Ecology issued a no further action determination in April 2011. The site has been removed from the Hazardous Sites List.

Site use restrictions called institutional controls are in effect

Institutional controls can be fences, signs, or restrictions on how the property is used. For instance, an institutional control may prohibit installing drinking water wells or disturbing a protective cap that isolates contamination. These restrictions keep the contamination contained and keep people from being exposed to the contamination. The controls are usually listed in environmental covenants recorded with the county.

Periodic reviews are required when institutional controls are required at a site. Ecology conducts reviews to make sure the controls remain effective and the cleanup still protects human health and the environment. We conduct periodic reviews about every five years.

Environmental Covenant

County Recording #: 2319623
County Recording Date: 2/24/2010

Restrictions/Requirements

  • Ongoing Maintenance of Remedy
  • Prohibit Soil Disturbance
  • Restrict Access

Restricted Media

  • Soil
Legal 2
Document Title Document Date Document Type
Orchard Middle School NFA ltr 4/25/2011 NFA Letter – non-VCP
Orchard Middle School Covenant 2/24/2010 Environmental Covenant; Alternative Mechanism
Public Information 3
Document Title Document Date Document Type
Sunnyslope ES & Orchard MS delisting fact sheet 1/1/2010 Fact Sheet\Public Notices
Sunnyslope ES & Orchard MS IAP SEPA 2008 fact sheet 4/30/2008 Fact Sheet\Public Notices
Sunnyslope ES & Orchard MS IAP SEPA 2007 fact sheet 3/1/2007 Fact Sheet\Public Notices
State Environmental Policy Act 4
Document Title Document Date Document Type
Sunnyslope ES & Orchard MS SEPA DNS 2008 4/30/2008 SEPA Documents
Sunnyslope ES & Orchard MS SEPA checklist 2008 4/22/2008 SEPA Documents
Sunnyslope ES & Orchard MS SEPA DNS 2007 3/22/2007 SEPA Documents
Sunnyslope ES & Orchard MS SEPA checklist 2007 3/19/2007 SEPA Documents
Technical Reports 4
Document Title Document Date Document Type
Orchard Middle School Final Interim Action Report 11/20/2009 Interim Action Documents
Sunnyslope ES & Orchard MS Interim Remedial Action Plan 2008 4/1/2008 Interim Action Documents
Sunnyslope ES & Orchard MS Interim Remedial Action Plan 2007 3/19/2007 Interim Action Documents
Orchard Middle School Site Hazard Assessment 2/1/2006 Site Hazard Assessment Report
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.

Places to see print documents

  • Central Regional Office
    1250 W Alder St
    Union Gap, 98903-0009
    Please schedule an appointment to view print documents at this location.

Contaminants 1

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Metals - Metals Priority Pollutants RA
S
Suspected
C
Confirmed Above Cleanup Levels
B
Below Cleanup Levels
RA
Remediated-Above
RB
Remediated-Below
R
Remediated
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.