Environmental Cleanup Site Information (ECSI) Database
Site Summary Report - Details for Site ID 4413, Lakeside Reclamation Landfill   

This report shows data entered as of February 9, 2010 at 8:19:36 PM

This report contains site details, organized into the following sections: 1) Site Photos (appears only if the site has photos); 2) General Site Information; 3) Site Characteristics; 4) Substance Contamination Information; 5) Investigative, Remedial and Administrative Actions; and 6) Site Environmental Controls (i.e., institutional or engineering controls; appears only if DEQ has applied one or more such controls to the site).  A key to certain acronyms and terms used in the report appears at the bottom of the page.

Go to DEQ's Facility Profiler to see a site map as well is information on what other DEQ programs may be active at this site.

Site Photos
Click to View Photo	Picture Date	Caption	Size
View Photo	06/01/2005	Lakeside Reclamation Landfill located on ODOT Highway Map of Washington County	144 Kb
View Photo	06/01/2005	Lakeside Reclamation Landfill located on USGS 7.5-minute Topo Map	115 Kb
View Photo	06/02/2005	Lakeside Reclamation Landfill depicted in 2000 air photo.	82 Kb

General Site Information
Site ID: 4413	Site Name: Lakeside Reclamation Landfill		CERCLIS No:
Address:	14930 SW Vandermost Rd Beaverton 97007
	County: Washington		Region: Northwest
Other location information:	Township 2 S, Range 2 W, Section 12 A and D. Tax lots 100 (reference parcel 2S212 00100) and 2302 (reference parcel 2S21200 02302) of T2S/R2W-S12, and tax lot 900 (reference parcel 2S10700 00900) of T2S/R1W-S7 . Located near Kinton, on the northern bank of the Tualatin River, and on the western foothills of Bull Mountain. The peak of Bull Mountain lies 2.1 miles east-northeast of the site; King City lies about 0.75 to the east; Beaverton lies about 1.5 miles to the northeast; Sherwood lies about 2.5 miles south-southeast. Ponzi Vineyards borders the site on the east and northeast. SW Scholls Ferry Road (Hwy 210) lies about 0.5 mile north of the site. Clark Hill lies 1.15 miles to the west-northwest. The site is 126.2 acres, overall; the actual landfill area as of 2004 is claimed to be 32.6 acres.
Investigation Status:	Listed on CRL or Inventory
	Brownfield Site: No	NPL Site: No	Orphan Site: No	Study Area: No
Property:	Twnshp/Range/Sect: 2S , 2W , 12		Tax Lots: 100, 2302, 900
	Latitude: 45.4108 deg.	Longitude: -122.8699 deg.	Site Size: 126.2 acres
Other Site Names:	Grabhorn Landfill

Site Characteristics
General Site Description:	A permitted, limited purpose, unlined demolition and land clearing debris landfill facility that has operated since 1957. The landfill currently occupies an area of approximately 33 acres with a site development plan anticipating a full build-out of 43 acres. The 1200 foot long southern boundary of the landfill is setback from the Tualatin River approximately 75 feet.
Site History:	The landfill began operation in 1957, but solid waste facilities in the State of Oregon were not required to be permitted by DEQ until 1972. After the permitting requirements went into effect, Grabhorn Incorporated and obtained an operating permit for the Lakeside Reclamation Landfill from DEQ in 1972. The 1972 permit application indicates the landfill footprint was approximately 7 acres in area and the fill composed primarily of construction/demolition debris and tree prunings (orchard waste). Over the years, Lakeside has received DEQ authorization on a case by case basis to take limited amounts of non-putrescible, non-hazardous industrial wastes. However, since the Solid Waste Disposal Permit was issued for the site, periodic compliance inspections noted disposals of un-permitted materials. In 1987 groundwater monitoring Wells were installed to assess the landfill’s influence on groundwater quality. There have been several expansions of the well network and monitoring continues on a semi-annual basis. In 1990, with DEQ’s approval, Grabhorn Inc. began installing an evapo-transpiration (ET) cap on closed portions of the landfill. The ET cover, vegetated with shrubs, poplar and pines trees now covers approximately 26 acres of the landfill. Since the late 1990s, a portion of the facility has been used for a composting operation that is permitted by DEQ under a separate solid waste facility permit.
Contamination Information:	(9/24/07 HDL/SRS) Groundwater monitoring at the facility indicates historic and on-going releases of landfill leachate are impacting groundwater quality beneath and directly downgradient of the facility. Contaminant levels, in excess of screening levels considered protective of aquatic organisms, have been consistently measured in river-front wells located immediately downgradient of the landfill. These monitoring results suggest that groundwater contamination potentially threatens aquatic life in the Tualatin River. Groundwater has been contaminated with concentrations of nitrates and arsenic, periodically exceeding Drinking Water Maximum Contaminant Levels (MCLs) protective of human health. It is uncertain whether the elevated nitrate levels are attributable to leachate releases from the landfill. Groundwater concentrations of manganese, nitrate, arsenic, zinc, benzene, chloroform, 1,1-dichloroethane, tetrahydrofuran have periodically exceeded EPA Region 9 Tap Water goals for protecting human health. Undiluted, groundwater concentrations of aluminum, copper, mercury, zinc, and possibly chromium (depending on oxidation state) have periodically exceeded the federal recommended CMC (acute toxicity) for freshwater aquatic life. However, groundwater undergoes substantial dilution as it discharges to the Tualatin and it is uncertain that contaminant levels in groundwater are sufficiently high to adversely impact the river ecology. Groundwater concentrations of alkalinity, ammonia, chloride, pH, boron, iron, manganese, lithium, aluminum, barium, nickel, silver, vanadium, zinc, carbon disulfide, toluene, and xylenes have sporadically exceeded either DEQ's Level II Ecological Risk Assessment Screening Values for freshwater aquatic life or the federal recommended CCCs (chronic toxicity) for freshwater aquatic life. However, groundwater undergoes substantial dilution as it discharges to the Tualatin and it is uncertain that contaminant levels in groundwater are sufficiently high to adversely impact the river ecology. In addition to construction and land clearing debris, DEQ approved of Lakeside’s acceptance of non-hazardous industrial waste sludge from the Tektronix wastewater treatment plant (1980), aluminum oxide grit used to polish Tektronix fiberglass circuit boards, copper-contaminated pre-filters from the Tektronix chelate fluoride ion exchange system, and copper-contaminated dust collector material from the Tektronix fiberglass circuit board drilling operations (1983). Since Lakeside began operating under a permit DEQ Solid Waste permit compliance inspections have noted a variety of prohibited materials in the fill, including auto tires, a smashed auto body, cafeteria wastes, household garbage, a substance used for heat-treating metals, closed paint cans, oil filters and jugs of used motor oil, electric fans, casting sands, baghouse dust, and slag from Western Foundry (ECSI #185), and chromium-containing sludge ash from the USA Durham STP. Casting sands from Western Foundry are known to have contained zirconium which has low level nuclear radiation. Dusts associated with Western Foundry operations have contained elevated concentrations of arsenic, cadmium, chromium, copper, lead, and zinc. DEQ issued the site a Notice of Non-Compliance (NON) in 2002 for unauthorized disposal of 630 tons of contaminated soils and chromium-treated animal hide splits originating at the Frontier Leather site (ECSI #116). The soils and hide splits were subsequently removed and sent to Hillsboro Landfill for disposal. Because of large volumes of land clearing debris, including tree stumps, multiple historic reports of small quantities of wet garbage (1978-85 compliance inspections; 1992 NON; 2002 NON, it seemed very plausible that the landfill may be generating methane gas. DEQ has required that the landfill evaluate gas generation using four probes installed in August 2007. Preliminary results demonstrate the need for at the least gas monitoring at the perimeter and around onsite structures. Evaluation will continue to determine the types of gas controls that the landfill will need. (3/21/07 HDL/SRS) An examination of groundwater data and information collected over the last fifteen years indicates groundwater flows predominantly to the south directly discharging to the Tualatin River. Nearing the river, groundwater flow paths are deflected to the southwest, likely the result of leakage from holding ponds located in the southeast portion of the facility. Groundwater quality data indicates that groundwater beneath the landfill has been impacted by leachate seeping from the unlined waste disposal areas. Contaminants and general water quality impacts observed are predominantly non-hazardous in nature (with respect to human health). The most notable impacts are elevated levels of total dissolved solids (TDS), chloride, iron, manganese, and zinc and the depletion of oxygen. Low levels of several human carcinogens including tetrahydrofuran, benzene, and arsenic have also been intermittently detected in groundwater at river front monitoring wells. Historical detections of several inorganic contaminants, including selenium, appear to be the result of sampling and/or laboratory analytical artifacts which produced spurious data. The areal extent of groundwater impacts associated with the landfill is confined to the Lakeside facility property, although shallow groundwater contamination may also affect a relatively small area of a private property located immediately west of the landfill and adjacent to the Tualatin. Data indicates that groundwater impacts deepen towards the river extending to a maximum depth of approximately forty feet beneath the water table before discharging to the Tualatin River. An analysis of hydrogeologic conditions at the site concluded that no existing private drinking water wells located beyond the facility boundary are vulnerable to contamination emanating from the Lakeside Landfill.
Manner and Time of Release:	Groundwater contamination is a result of leachate and possibly landfill gas released from the unlined landfill. Some of the contaminants detected in groundwater may be present in leachate while others are naturally occurring in soils and have been solubilized and mobilized as a result of leachate and/or gas altering the natural groundwater chemistry. Static water level measurements at the site's monitoring wells indicate that contaminated groundwater is probably discharging to the Tualatin River. Methane (a component of landfill gas) is being generated within the landfill, possibly from the organic matter diposals at the site (tree stumps, land clearing debris, lumber, past disposals food wastes, and wet garbage).
Hazardous Substances/Waste Types:	Groundwater contaminants of concern at the site include metals (As, Fe, Mn, Zn), VOCs (benzene, tetrahydrofuran) and various water quality parameters (dissolved oxygen, pH, total dissolved solids). Methane is present in the subsurface within the landfill.
Pathways:	The exposure pathway of greatest concern is the discharge of contaminated groundwater to the Tualatin River and its impact on aquatic organisms. The most vulnerable organisms are the invertebrates (clams, worms, aquatic insects) that occupy the benthic environment in sediments beneath the channel bottom. Degradation of Tualatin River water quality is unlikely due to the high degree of dilution that occurs when groundwater mixes with stream flow. Contamination of domestic and irrigation wells due to leachate releases is considered highly unlikely. Methane concentrations and pressures within the landfill may be sufficient to cause subsurface migration of methane toward nearby structures and other confined spaces. Methane is flammable and explosive at certain concentrations within confined spaces. Lakeside's preliminary methane monitoring and assessment indicates, however, that methane is not migrating from the landfill to on-site or off-site structures.
Environmental/Health Threats:	Discharges of contaminated groundwater to nearby Tualatin River represent a potential threat to the river’s bird, mammal, and aquatic life populations. No impacts to domestic or irrigation wells are anticipated. If methane concentrations and pressures within the landfill are found to be sufficient to cause subsurface migration to nearby confined spaces, DEQ will require engineering controls and an appropriate monitoring program to protect human health and safety.
Status of Investigative or Remedial Action:	(9/24/07 HDL/SRS) The landfill is currently performing a remedial investigation of human health and environmental impacts. This investigation includes: 1) locating and evaluating the vulnerability of domestic and irrigation wells in the area, 2) determining the concentration and rate of contaminant migration into the Tualatin River, 3) evaluating impacts to aquatic biota in Tualatin River, 4) determining the effectiveness of the landfill cover. DEQ anticipates the remedial investigation will be completed in early 2008. The landfill is also performing a methane gas investigation under the direction of DEQ’s solid waste program.
Data Sources:	DEQ Solid Waste Permit files for Lakeside Reclamation Landfill.

Substance Contamination Information
Substance	Media Contaminated	Concentration Level	Date Recorded
ACETONE	Groundwater	275 ppb in groundwater at well MW-10 on 11/11/04. 128 ppb at MW-9, 11/11/04. 35.5 ppb at MW-9, 5/4/00. 27.4 ppb at MW-4, 4/21/97. 11.9 at MW-9, 10/17/00. 5.7 ppb at MW-3. 5.7 ppb at well MW-3.	11/11/2004
AMMONIA NITROGEN	Groundwater	4.01 ppm in groundwater at well MW-7 on 5/10/01. 3.3 ppm at well MW-9 on 11/25/97 and 4/24/02. 3.2 ppm at well MW-9 on 4/21/04.	5/10/2001
BARIUM	Groundwater	729 ppb in groundwater at well MW-9 on 4/24/03. 688 ppb T. Ba at MW-9, 4/29/99. 681 ppb T. Ba at MW-9, 4/21/04. 649 ppb D. Ba at MW-9, 10/17/00. 639 ppb D. Ba at MW-9, 11/6/03. 615 ppb T. Ba at MW-9, 4/24/02. 614 ppb T. Ba at MW-10, 4/21/04.	4/24/2003
BENZENE	Groundwater	2.7 ppb in groundwater at well MW-9 on 11/24/97. 2.44 ppb at MW-9, 10/20/97. 2.2 ppb at MW-9, 11/25/97. 1.83 ppb at MW-4, 11/24/97. 1.65 ppb at MW-4, 10/26/97. 1.5 ppb at MW-4, 3/31/95. 1.13 ppb at well MW-3, 4/21/04.	11/25/1997
BORON	Groundwater	3130 ppb T. B in groundwater at well MW-4 on 4/21/04. 2990 ppb D. B at MW-4, 4/24/02. 2440 ppb D. B at MW-9, 11/25/97. 1890 ppb T. B at MW-9, 4/21/04. 1890 ppb D. B at MW-9, 4/21/04. 1850 ppb D. B at MW-9, 4/24/02. 958 ppb D. B at MW-4, 11/24/97.	4/21/2004
BUTYL ALCOHOL, tert-	Groundwater	226 ppb in groundwater at well MW-10	11/11/2004 2:24:06 PM
CHLORIDE (AS ION)	Groundwater	635 ppm in groundwater at well MW-10	4/21/2004 1:44:21 PM
CHLOROFORM	Groundwater	1.17 ppb in groundwater at well MW-9	7/30/1997 2:28:12 PM
CHRYSENE	Groundwater	10 ppb in groundwater at well MW-10 on 11/24/97.	11/24/1997 10:28:32 AM
DICHLOROETHANE,1,2-	Groundwater	0.7 ppb in groundwater at well MW-10 on 11/24/97.	11/24/1997 10:42:41 AM
IRON	Groundwater	123000 ppb in groundwater at well MW-9 on 11/25/97. 120000 ppb at MW-9, 11/25/97. 114000 ppb at MW-9, 4/29/99. 112000 ppb at MW-9, 10/1/98. 94900 ppb at MW-4, 11/24/97. 91600 ppb at MW-4, 10/1/98.	11/25/1997
IRON	Other	26000 ppb in standing water from dumping area	10/6/1983 3:33:50 PM
IRON	Surface Water	900 ppb in surface water from pond #4 (southwest pond)	10/6/1983 3:33:50 PM
ISOPROPYLBENZENE,P-	Groundwater	4.9 ppb in groundwater at well MW-10 on 4/21/04. 1.7 ppb at MW-4, 4/21/04. 1.1 ppb at MW-4, 4/24/02. 1.07 ppb at MW-4, 6/5/95. 0.8 ppb at MW-9, 4/21/04. 0.6 ppb at MW-9, 4/24/02.	4/21/2004
MANGANESE	Groundwater	15700 ppb in groundwater at well MW-10 on 11/6/03. 14600 ppb at MW-10, 11/11/04. 5450 ppb at MW-6, 10/1/98. 5420 at MW-6, 4/29/99. 5290 at MW-3, 4/21/04. 4500 at MW-4, 6/26/96.	11/6/2003
METHANE	Soil	Methane concentration yet to be determined in soils	5/31/2005 10:46:26 AM
NICKEL	Groundwater	72 ppb T. Ni in groundwater at well MW-8 on 11/24/97. 60.8 ppb T. Ni at MW-8, 11/24/97. 48.1 ppb T. Ni at MW-7, 5/4/00. 47.7 ppb T. Ni at MW-7, 11/24/97. 25 ppb T. Ni at MW-6, 10/7/96.	11/24/1997
NICKEL	Other	200 ppb in standing water at dumping area	10/6/1983 3:41:45 PM
POTASSIUM	Groundwater	22 ppm in groundwater at well MW-3	1/3/1992
SODIUM	Groundwater	149 ppm in groundwater at well MW-9	11/6/2003 1:50:51 PM
SULFATE (AS ION)	Groundwater	40.2 ppm in groundwater at well MW-6	10/17/2000 1:52:06 PM
THALLIUM	Groundwater	1.2 ppb T. Tl in groundwater at well MW-7 on 4/29/99. 0.35 ppb D. Tl at MW-10, 4/24/03. 0.26 ppb T. Tl at MW-6, 11/14/02. 0.24 ppb D. Tl at MW-10, 4/24/02.	4/29/1999
TRICHLOROBENZENE,1,2,4-	Groundwater	1.7 ppb in groundwater at well MW-6	9/16/1994 2:43:19 PM
ZINC	Groundwater	46000 ppb in groundwater at well MW-10 on 11/11/04. 46000 ppb D. Zn at MW-4, 3/31/95. 40,000 ppb T. Zn at MW-4, 3/31/95. 9000 ppb T. Zn at MW-3, 6/24/94. 8930 ppb D. Zn at MW-3, 4/21/04.	11/11/2004
ZINC	Other	220 ppb in standing water in dumping area	10/6/1983 3:44:38 PM

Investigative, Remedial and Administrative Actions
Action	Start Date	Compl. Date	Resp. Staff	Lead Pgm
REMEDIAL INVESTIGATION  (Primary Action)	08/01/2005		Henning Larsen	VCS
View Full Report Showing Action History

Key to Certain Acronyms and Terms in this Report:

• CERCLIS No.: The U.S. EPA's Hazardous Waste Site identification number, shown only if EPA has been involved at the site.
• Region: DEQ divides the state into three regions, Eastern, Northwest, and Western; the regional office shown is responsible for site investigation/cleanup.
• NPL Site: Is this site on EPA's National Priority List (i.e., a federal Superfund site)? (Y/N).
• Orphan Site: Has DEQ's Orphan Program been active at this site? (Y/N). The Orphan Program uses state funds to clean up high-priority sites where owners and operators responsible for the contamination are absent, or are unable or unwilling to use their own resources for cleanup.
• Study Area: Is this site a Study Area? (Y/N). Study Areas are groupings of individual ECSI sites that may be contributing to a larger, area-wide problem. ECSI assigns unique Site ID numbers to both individual sites and to Study Areas.
• Pathways: A description of human or environmental resources that site contamination could affect.
• Lead Pgm: This column refers to the Cleanup Program affiliation of the DEQ employee responsible for the action shown. SAS or SAP = Site Assessment; VCS or VCP = Voluntary Cleanup; ICP = Independent Cleanup; SRS or SRP = Site Response (enforcement cleanup); ORP = Orphan Program.

You may be able to obtain more information about this site by contacting Henning Larsen at the Northwest regional office or via email at larsen.henning@deq.state.or.us. If this does not work, you may contact Gil Wistar at (503) 229-5512, or via email at wistar.gil@deq.state.or.us or contact the Northwest regional office.

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