Intalco Aluminum Corp Ferndale
Facility Site ID:
16
Cleanup Site ID:
2280
Background
Located at 4050 Mountain View Road in Ferndale, cleanup activities at this Site include closure of several landfills Intalco used to dispose of wastes created by aluminum production.
Beach 1 landfill (BI, closed November 29, 2005), Beach 2 landfill (BII, closed November 25, 2005), and the Closed Construction Debris Landfill (CCDL, closed October 4, 2006), contained solid waste and construction debris. Testing at these sites found chemicals of concern, including:
Beach 1 landfill (BI, closed November 29, 2005), Beach 2 landfill (BII, closed November 25, 2005), and the Closed Construction Debris Landfill (CCDL, closed October 4, 2006), contained solid waste and construction debris. Testing at these sites found chemicals of concern, including:
- Fluoride, aluminum, chromium, copper, lead, zinc, PCBs, and PAHs in the groundwater.
- Fluoride and aluminum in the surface water.
- PCBs, PAHs, and fluoride in the soil.
In response to this concern, waste from the BI and BII landfills were moved to the Double-Lined and Triple-Lined landfills. The cleanup of the CCDL included stabilizing slopes and installing a protective cover.
- The Double-Lined Landfill (DLL), closed September 14, 2007, contains solid waste and construction debris.
- The Triple-Lined Landfill (TLL), closed November 28, 2012, contains dangerous waste (spent potliner), solid waste, and construction debris.
Since this was done, contamination from the landfills has been below levels of concern. Long term monitoring for fluoride, weak acid dissociable cyanide, and total PCBs from BI, BII, and the CCDL is required.
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 3
Environmental Covenant
County Recording #:
2080203055
County Recording Date:
2/25/2008
Restrictions/Requirements
- Prevent the Reuse or Relocation of Site Soil
- Restrict All Ground Water Extraction/Well Installation
- Restrict Land Use
Restricted Media
- Groundwater
- Soil
Environmental Covenant
County Recording #:
2120302672
County Recording Date:
3/26/2012
Restrictions/Requirements
- Prevent the Reuse or Relocation of Site Soil
- Restrict All Ground Water Extraction/Well Installation
- Restrict Land Use
Restricted Media
- Groundwater
- Soil
Environmental Covenant
County Recording #:
2080203056
County Recording Date:
2/25/2008
Restrictions/Requirements
- Prevent the Reuse or Relocation of Site Soil
- Restrict All Ground Water Extraction/Well Installation
- Restrict Land Use
Restricted Media
- Groundwater
- Soil
Documents 22
Legal 7
| Document Title | Document Date | Document Type |
| Intalco Final PLP Letter-Altagas | 12/4/2023 | Final Potentially Liable Person Status Letter |
| Intalco Final Potentially Liable Person Letter | 8/8/2023 | Final Potentially Liable Person Status Letter |
| Intalco Triple Lined Landfill Restrictive Covenant | 3/26/2012 | Environmental Covenant; Alternative Mechanism |
| Intalco Double-Lined and Closed Construction Debris Landfills Restrictive Covenant | 2/25/2008 | Environmental Covenant; Alternative Mechanism |
| Intalco Beach I and Beach II Landfills Restrictive Covenant | 2/25/2008 | Environmental Covenant; Alternative Mechanism |
| Alcoa Intalco Works Landfills Consent Decree 07-2-00181-2 | 2/2/2007 | Consent Decree |
| Intalco Landfills Agreed Order DE 01 TCPIS 2949 | 7/1/2001 | Agreed Order |
Map 1
| Document Title | Document Date | Document Type |
| Alcoa Intalco Works Site Overview | 9/16/2004 | Map |
Public Information 2
| Document Title | Document Date | Document Type |
| Intalco Consent Decree 07-2-00181-2 Public Notice | 7/26/2006 | Fact Sheet\Public Notices |
| Intalco Agreed Order DE 01 TCPIS 2949 Public Notice | 4/23/2001 | Fact Sheet\Public Notices |
Technical Reports 12
| Document Title | Document Date | Document Type |
| Intalco Alluminum Preliminary PLP Letter-Altagas | 11/9/2023 | Site Specific Administrative Document - other (Administrative correspondence) |
| IntalcoAluminum-TripleLinedLandfill-SecondPeriodicReview | 8/28/2023 | Periodic Review (5 Year) |
| Intalco Preliminary PLP Letter | 7/18/2023 | Site Specific Administrative Document - other (Administrative correspondence) |
| Final Alcoa Intalco Beach I, Beach II, Double-lined, and Closed Construction Debris Landfills Periodic Review | 8/4/2021 | Periodic Review (5 Year) |
| Intalco Post-Closure Groundwater Monitoring 2020 Annual Report | 3/29/2021 | Site Specific Technical Document - other |
| Final Alcoa Intalco Triple Lined Landfill Periodic Review | 6/15/2018 | Periodic Review (5 Year) |
| Intalco Post-Closure Groundwater Monitoring 2015 Annual Report | 3/1/2015 | Groundwater Monitoring Report |
| Intalco Triple Lined Landfill cleanup complete letter | 3/29/2012 | Site Specific Administrative Document - other (Administrative correspondence) |
| Intalco Beach I & II, Closed Construction Debris, and Double Lined Landfills cleanup complete letter | 4/27/2011 | Site Specific Administrative Document - other (Administrative correspondence) |
| Cleanup Action Plan Intalco Landfill Closure Program | 7/26/2006 | Cleanup Action Plan |
| Intalco Fluoride Fate and Transport Analysis | 3/9/2006 | Site Specific Technical Document - other |
| ALCOA INTALCO UST Decommissioning | 8/15/2001 | Site Specific Technical Document - other |
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.
Contaminants 7
| Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
|---|---|---|---|---|---|---|
| Metals - Metals - Other | S | |||||
| Halogenated Organics - Polychlorinated biPhenyls (PCB) | B | B | B | S | ||
| Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons | B | B | S | |||
| Other Contaminant - Conventional Contaminants, Organic | B | S | B | |||
| Other Contaminant - Conventional Contaminants, Inorganic | B | B | B | |||
| Other Contaminant - Bioassay Benthic Failures | S | |||||
| Non-Halogenated Organics - Petroleum-Other | C |
- 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.