Zur Hausen Orchard
Site Description
Cleanup Activities
A six-inch layer of clean soil was placed on top of the three identified areas with elevated concentrations of arsenic in the surface soils. The total area on the property that received a six-inch clean soil cap totaled approximately 23,000 square feet. Sod, low-growing shrubs, trees and chipped bark were placed atop the clean cap to bring the grade up to the sidewalks and driveways.
A site-specific Operation and Maintenance Plan was prepared and will remain onsite. The manual includes a discussion about the physical and chemical hazards of arsenic, work control plans and prescribed work practices to reduce or eliminate direct contact exposure to potential arsenic-containing soils and will be made available to site contractors, utility workers, residents and employees.
In February 2009, an environmental covenant was recorded for the Site.
Cleanup Complete
Periodic Review
Periodic review results
Based upon the site visit conducted on February 2, 2021, no repair, maintenance or contingency actions have been required. The cleanup actions completed at the site are protective of human health and the environment.
Soil cleanup levels have not been met at the site; however, the cleanup action for the property is determined to comply with cleanup standards under WAC 173-340-740(6) (f), since the long-term integrity of the containment system is ensured and the requirements for containment technologies have been met.
The environmental covenant for the property is in place and continues to be effective in protecting public health and the environment from exposure to hazardous substances and protecting the integrity of the cleanup action.
Ecology has determined that the requirements of the environmental covenant are being satisfactorily followed. No additional remedial actions are required by the property owner. It is the property owner’s responsibility to continue to inspect the site to assure that the integrity of the cap is maintained.
Voluntary Cleanup Program
This site was cleaned up under our Voluntary Cleanup Program, which provides technical help to owners of contaminated sites.
Voluntary Cleanup Program customers pay fees to cover our costs for technical help and reviewing cleanup reports. Sites in this program must meet the same cleanup standards as the sites Ecology manages under legal orders.
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.
Institutional Controls 1
Environmental Covenant
Restrictions/Requirements
- Prohibit Soil Disturbance
- Restrict Access
- Restrict Land Use
Restricted Media
- Soil
Documents 11
Legal 1
Document Title | Document Date | Document Type |
Zur Hausen Orchard Environmental Covenant | 2/27/2009 | Environmental Covenant; Alternative Mechanism |
Technical Reports 6
Document Title | Document Date | Document Type |
Zur Hausen Orchard - Notice of 2nd Periodic Review | 5/28/2021 | Site Specific Administrative Document - other (Administrative correspondence) |
Zur Hausen Orchard 2021 Periodic Review | 2/1/2021 | Periodic Review (5 Year) |
Zur Hausen Orchard 2015 Periodic Review | 2/1/2015 | Periodic Review (5 Year) |
Zur Hausen Orchard Report | 1/7/2008 | Remedial Action Report |
Zur Hausen Orchard Ltd Subsurface Soil Investigation Rpt | 9/26/2005 | Site Specific Technical Document - other |
Zur Hausen Orchard Phase 1 Environmental Site Assessment | 8/24/2005 | Site Specific Technical Document - other |
Voluntary Cleanup Program 4
Document Title | Document Date | Document Type |
Zur Hausen Orchard - VCP Opinion on Site Cleanup - No Further Action | 3/30/2009 | VCP Opinion on Site Cleanup – NFA |
Zur Hausen Orchard - VCP Opinion on Site Cleanup - Further Action | 4/25/2007 | Voluntary Cleanup Program Opinion – Other |
Zur Hausen Orchard - VCP Opinion on Site Cleanup - Further Action | 1/29/2007 | Voluntary Cleanup Program Opinion – Other |
Zur Hausen Orchard - VCP Opinion on Site Cleanup - Further Action | 1/23/2006 | Voluntary Cleanup Program Opinion – Other |
Places to see print documents
-
Central Regional Office1250 W Alder StUnion Gap, 98903-0009Please schedule an appointment to view print documents at this location.
Contaminants 1
Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
---|---|---|---|---|---|---|
Metals - Arsenic | RA |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated