SITE INSPECTION Siuslaw Marina
Florence, Oregon
October 2012
Prepared for:
United States Environmental Protection Agency 1200 Sixth Avenue Seattle, Washington 98101
Prepared by:
ECOLOGY AND ENVIRONMENT, INC. 720 Third Avenue, Suite 1700 Seattle, Washington 98104
able of Contents T
Section Page
1 Introduction ...... 1-1
2 Site Background ...... 2-1 2.1 Site Location ...... 2-1 2.2 Site Description ...... 2-1 2.3 Site Ownership History ...... 2-2 2.4 Site Operations and Source Characteristics ...... 2-2 2.5 Previous Investigations ...... 2-4 2.5.1 August 1998 Oregon Department of Environmental Quality Site Visit ...... 2-4 2.5.2 Oregon Department of Environmental Quality Preliminary Assessment ...... 2-4 2.6 START Site Visit ...... 2-5
3 Field Activities and Analytical Protocol ...... 3-1 3.1 Sampling Methodology ...... 3-1 3.1.1 Surface Soil Sampling ...... 3-1 3.1.2 Shoreline Sediment Sampling ...... 3-1 3.1.3 Siuslaw River Sediment Sampling ...... 3-2 3.1.4 Storm Water Catchment Basin Sediment Sampling ...... 3-2 3.2 Analytical Protocol ...... 3-2 3.3 Global Positioning System ...... 3-2 3.4 Investigation-Derived Waste ...... 3-2
4 Quality Assurance/ Quality Control ...... 4-1 4.1 Satisfaction of Data Quality Objectives ...... 4-1 4.2 QA/QC Samples ...... 4-2 4.3 Project-Specific Data Quality Objectives ...... 4-2 4.3.1 Precision ...... 4-2 4.3.2 Accuracy ...... 4-2 4.3.3 Completeness ...... 4-2 4.3.4 Representativeness ...... 4-2 4.3.5 Comparability ...... 4-3 4.4 Laboratory QA/QC Parameters ...... 4-3 4.4.1 Holding Times/Temperatures/Sample Containers ...... 4-3 4.4.2 Laboratory Blanks ...... 4-3
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Section Page
4.4.3 Serial Dilution Analyses...... 4-3 4.4.4 Rinsate Blanks ...... 4-3
5 Analytical Results Reporting and Background Samples ...... 5-1 5.1 Analytical Results Evaluation Criteria ...... 5-1 5.1.1 Sample Results Reporting ...... 5-1 5.2 Background Samples ...... 5-1 5.2.1 Background Surface Soil Sample Location ...... 5-2 5.2.1 Background Sediment Samples ...... 5-2
6 Potential Sources ...... 6-1 6.1 Contaminated Soil ...... 6-1 6.2 Storm Water Catchment Basins ...... 6-2 6.3 Ground Water Seep (Source Unidentified) ...... 6-2
7 Surface Water Migration Pathway and Targets ...... 7-1 7.1 Overland Pathway ...... 7-1 7.2 15-Mile TDL ...... 7-2 7.3 Targets ...... 7-2 7.3.1 Drinking Water ...... 7-3 7.3.2 Human Food Chain ...... 7-3 7.3.2.1 Sport Catch ...... 7-3 7.3.2.2 Commercial Harvest ...... 7-4 7.3.3 Environmental Targets ...... 7-4 7.4 Sediment Sample Locations ...... 7-5
8 Summary and Conclusions ...... 8-1
9 References ...... 9-1
Appendices
A Photographic Documentation B Sample Plan Alteration Form C Chain-of-Custody Documentation D Data Validation Memoranda E Global Positioning System Coordinates
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ist of Tables L
Table
Table 2-1 August 1998 ODEQ Site Visit Sediment Analytical Results (ppm)
Table 2-2 January 2005 ODEQ Preliminary Assessment Surface Soil Sample Results (mg/kg)
Table 2-3 January 2005 ODEQ Preliminary Assessment Near-Shore Sediment Sample Results (ppm)
Table 2-4 January 2005 ODEQ Preliminary Assessment Mid-Channel Sediment Sample Results (ppm)
Table 3-1 Sample Analysis Summary
Table 6-1 Ways Building Sediment Sample Analytical Results
Table 6-2 Surface Soil Analytical Results
Table 6-3 Storm Drain Analytical Results
Table 6-4 Ground Water Seep Analytical Results
Table 7-1 Sport and Commercial Catch Data Within the 15-Mile TDL Siuslaw Marina
Table 7-2 Siuslaw River Sediment Sample Analytical Results
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L
Figure
Figure 1-1 Site Vicinity Map
Figure 2-1 Site Map
Figure 2-2 January 2005 ODEQ Preliminary Assessment Sediment Sample Locations
Figure 2-3 January 2005 ODEQ Preliminary Assessment Background Sediment Sample Location
Figure 3-1 Sample Location Map
Figure 7-1 15-Mile Target Distance Limit Map
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ist of Abbreviations and Acronyms
L
Term Definition %R Percent Recovery AST Aboveground Storage Tank bgs Below Ground Surface BS Blank Spike CLP Contract Laboratory Program COC Contaminant of Concern CRQL Contract Required Quantitation Limit DMEF SL Dredge Material Evaluation Framework/Lower Columbia River Management Area Screening Level DQO Data Quality Objective E & E Ecology and Environment, Inc. EPA United States Environmental Protection Agency GPS Global Positioning System IDW Investigation-Derived Waste mg/kg Milligrams per Kilogram MS/MSD Matrix Spike/Matrix Spike Duplicate NPDES National Pollutant Discharge Elimination System NPL National Priorities List ODEQ Oregon Department of Environmental Quality ODFW Oregon Department of Fish and Wildlife PA Preliminary Assessment PCB Polychlorinated Biphenyl PPE Probable Point of Entry PRG Preliminary Remediation Goal QA Quality Assurance QC Quality Control RPD Relative Percent Difference SI Site Inspection SPAF Sample Plan Alteration Form SQAP Sampling and Quality Assurance Plan SQL Sample Quantitation Limit START Superfund Technical Assessment and Response Team SVOC Semivolatile Organic Compound TAL Target Analyte List TBT Tributyltin TDL Target Distance Limit TM Task Monitor
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Term Definition TOC Total Organic Carbon USCG United States Coast Guard VOC Volatile Organic Compound
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Introduction
1
Ecology and Environment, Inc. (E & E) was tasked by the United States Environmental Protection Agency (EPA) to provide technical support for completion of a Site Inspection (SI) at the Siuslaw Marina located in Florence, Oregon (Figure 1-1). E & E completed SI activities under Technical Direction Document Number 11-01-0009, issued under EPA, Region 10, Superfund Technical Assessment and Response Team (START)-3 Contract Number EP-S7-06-02.
The specific goals for the Siuslaw Marina SI, identified by the EPA, are:
. Determine the potential threat to public health or the environment posed by the site;
. Determine the potential for a release of hazardous constituents into the environment; and
. Determine the potential for placement of the site on the National Priorities List (NPL).
Completion of the SI included reviewing existing site information, determining regional characteristics, collecting receptor information within the range of site influence, executing a sampling plan, and producing this report. The report is organized as follows:
. Section 1, Introduction – Authority for performance of this work, goals for the project, and summary of the report contents;
. Section 2, Background – Site description, site operations, and waste characteristics, and a summary of investigation locations;
. Section 3, Field Activities and Analytical Protocol – Summary of the field effort;
. Section 4, Quality Assurance/Quality Control (QA/QC) – Summary of the laboratory data;
. Section 5, Analytical Results Reporting and Background Samples – Discussion of analytical results reporting criteria and background sample locations;
. Section 6, Potential Sources – Discussion of site sources, sample locations, and results;
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1. Introduction
. Section 7, Migration/Exposure Pathways and Targets – Discussion of the migration/exposure pathways, sample locations, and results;
. Section 8, Summary and Conclusions – Summary of the investigation; and
. Section 9, References – Alphabetical listing of the references cited throughout the text.
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Site Background
2
This section describes the background of the site including location, description, ownership history, operations and source characteristics, previous investigations, and the SI site visit.
2.1 Site Location Site Name Siuslaw Marina CERCLIS ID Number ORN001002603 Site Address 06516 Highway 126 Florence, Oregon 97439 Latitude 43.9811667 North Longitude -124.0541667 West Legal Description Tax Lot 1400, Section 30, Township 18 South, Range 11 West County Lane Congressional District 4 Site Owner/Operator Kirby Hansen 06516 Highway 126 Florence, Oregon 97439
2.2 Site Description The Siuslaw Marina is located adjacent to the Siuslaw River estuary, approximately 2 miles east of Florence, Oregon, on Highway 126. Portions of the site are located on both sides of Highway 126 (Figure 2-1). The portion of the site located on the southeast side of Highway 126 (adjacent to the Siuslaw River) encompasses approximately 1 acre, while the portion of the site located northwest of Highway 126 is less than 0.25 acre.
Site features on the southeast portion of the property include a large building housing a retail store, a ways building housing the haul-out ways and an engine repair facility, a boat hoist, several floating docks, and a floating boathouse (ODEQ 2005) (Figure 2-1). A boat launch is located at the eastern edge of the site. Additionally, an office (used for new boat sales only) is located between the boat hoist and boat launch; however, this office is operated by Y Marina and is not associated with operations at the Siuslaw Marina. This portion of the site has a gravel-covered parking surface that slopes to the southeast toward the Siuslaw River. One storm drain is located near the boat hoist. This portion of the site is not fenced or secured from unauthorized entry during non-business hours (E & E 2011b) (Figure 2-1).
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Site features on the northwest portion of the property include a large storage building, a campground operated by the site owner, and the site owner’s residence (Figure 2-1). A gravel-covered parking surface is also located on this portion of the site. One storm drain is located west of the storage building in the graveled parking area (Figure 2-1). Like the southeast portion of the site, this portion of site is not fenced or otherwise secured from unauthorized entry during non- business hours (E & E 2011b).
The site is primarily surrounded by residential properties. Several schools are located greater than 2 to 3 miles west of the site. Based on conversations with Kirby Hansen, the current site owner, a former veneer plant is located down river of the site (approximately 0.4 mile). No additional information could be located with regard to the former veneer plant.
2.3 Site Ownership History The site was originally developed by the Columbia River Packing Company (date unknown) as a loading and unloading dock. The site was subsequently developed by John McCarty in the late 1960s to early 1970s as a boat yard for service and maintenance of commercial fishing vessels as well as vessels of the United States Coast Guard (USCG). The current owner acquired the property in October 1978 (ODEQ 2005).
2.4 Site Operations and Source Characteristics As stated above, the site was originally developed by the Columbia River Packing Company as a loading and unloading dock, and later developed into a boat yard for service and maintenance of boats.
The original boat yard was operated by John McCarty. Mr. McCarty serviced commercial fishing vessels and had a contract for servicing USCG vessels. Services provided included vessel maintenance, hull refurbishing, and preparation of hull surfaces for subsequent marine paint applications. Hull surfaces were primarily prepared by dry blasting with Green Diamond® blasting media. Hull surface preparation was completed within the ways building. It is possible that hull preparation activities occurred while boats were on the ways outside of the ways building.
One aboveground storage tank (AST) was located near the haul-out ways. This tank was used for holding fluids pumped from vessels. It is not known what fluids were pumped from vessels to the AST. The AST has since been removed; however, the date of removal is not known (ODEQ 2005).
The Siuslaw Marina began operations at the property in October 1978, providing many of the same services as the previous marina operator. Services included vessel servicing and maintenance, hull refurbishing, and preparing hulls for marine paint application. Shortly after the current owner acquired the site, sandblasting activities were reduced. As an alternative to sand blasting, vessel
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hulls were scraped and sanded. These activities occurred within the ways building, and it is possible that hull preparation activities occurred while boats were on the ways outside of the ways building. Tarps were employed to collect the residues from scraping, sanding, and subsequent re-painting. These residues were collected and disposed of off-site (ODEQ 2005). The disposal location is not known.
Due to their deteriorated condition, the haul-out ways have not been used since the mid-1980s. For this reason, only minimal vessel maintenance activities currently occur at the site. These maintenance activities primarily consist of marine engine repair and occur within the engine repair room located in the ways building (Figure 2-1).
Two storm water catchment basins and associated outfalls are present at the site. One storm water catchment basin and outfall is located south of highway 126 near the boat hoist. The other storm water catchment basin is located north of Highway 126. The outfall associated with this storm water catchment basin is under the northeast corner of the ways building (Figure 2-1).
The catchment basin near the boat hoist collects storm water runoff from a parking area associated with the portion of the property south of Highway 126. However, during the field event, due to heavy rain, it was noted that little water from the parking area associated with the southeast portion of the property entered the storm drain. Much of the water entering this catchment basin originated from Highway 126 (See photos 57 through 63 in Appendix A). This catchment basin is also connected to Saubert Creek, a small minimal stream originating in the hills northwest of the site (Figure 1-1 and 2-1). Water from this catchment basin discharges directly into the Siuslaw River via an outfall adjacent to the boat hoist.
The catchment basin on the portion of the property located north of Highway 126 collects storm water runoff from a second parking lot area (Figure 2-1). This catchment basin is tied to a drain line that flows to a ditch running parallel to Highway 126. During the site visit, it was thought that surface water from the sandblasting area located north of Highway 126 entered this catchment basin; however, due to heavy rain during the field event, it was evident that surface water from the sand blasting area did not enter the catchment basin, but instead drained directly into the ditch downstream of the catchment basin (see photo 65 in Appendix A). This ditch enters a culvert running under the Highway 126 that discharges directly to the Siuslaw River through the outfall under the northeast corner of the ways building.
No National Pollutant Discharge Elimination System (NPDES) storm water discharge permits could be found for either of these outfalls.
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2.5 Previous Investigations The following sections describe previous environmental investigations and other related investigations that have been conducted at the site.
2.5.1 August 1998 Oregon Department of Environmental Quality Site Visit Based on environmental impacts observed at similar vessel hull maintenance facilities in Oregon, the Oregon Department of Environmental Quality (ODEQ) visited the Siuslaw Marina in August 1998 to determine if activities at the site have impacted the environment. During the site visit, ODEQ staff collected two sediment samples. The sediment samples were collected from two locations near the ways building (one beneath the building and one in front of the building). The specific sample locations are not known, as they were not graphically depicted on a map. Each sample was analyzed for butyltin(s), pesticides, polychlorinated biphenyls (PCBs), and metals. Sample results were compared to ODEQ Level II Screening Level Values for Marine Toxicity and Bioaccumulation. Analytical results from these samples indicated the presence of metals including arsenic, chromium, copper, lead, nickel, and zinc above one or both screening values. Elevated concentrations of PCBs and tributyltin (TBT) were also detected at these sample locations. Table 2-1 presents the analytical results from this sampling event.
Based on the August 1998 site visit and sediment sample results, ODEQ completed a site screening evaluation and strategy recommendation in January 1999. The strategy recommendation suggested further and more comprehensive assessment of potential contaminant exposure pathways, including sampling of appropriate environmental media.
2.5.2 Oregon Department of Environmental Quality Preliminary Assessment Pursuant to a Cooperative Agreement (V-99051902 and V-99051903) between the EPA and ODEQ, ODEQ conducted a Preliminary Assessment (PA) of Siuslaw Marina in January 2005. The PA was intended to identify potential hazards at the site and identify whether the site required an in-depth investigation. The scope of the PA included a review of available file information, collection and analysis of soil and sediment samples, and an assessment of potential contaminant exposure pathways. However, the PA did not represent a full investigation or characterization of the site. Soil and sediment samples collected from the site were analyzed for butyltin(s), pesticides, PCBs, SVOCs, and metals; however, not all samples were analyzed for each constituent (ODEQ 2005).
Six samples were collected: one surface soil and five sediment. The surface soil sample was a multi-point composite sample collected within the ways building (Figure 2-2). Of the five sediment samples, three were collected near the shoreline of the Siuslaw River one was collected from the mid-channel of the Siuslaw River in front of the site (Figure 2-2). One background sediment sample
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was collected approximately 0.75 mile upriver of the site (Figure 2-3). A background surface soil sample was not collected.
. The surface soil sample was submitted for analyses of metals and SVOCs only. Compared to EPA Region 9 residential and industrial soil Preliminary Remediation Goals (PRGs), soil from this area exceed PRGs for arsenic (4.22 milligrams per kilogram [mg/kg]) and chromium (1,230 mg/kg). Table 2-2 presents these results.
. All of the sediment samples were compared to the background sample, the Dredge Material Evaluation Framework/Lower Columbia River Management Area Screening Levels (DMEF SLs) dated April 1998, the ODEQ Guidance for Ecological Risk Assessment Level II Screening Level Values for Marine Toxicity dated December 2001, and the ODEQ Guidance for Ecological Risk Assessment Level II Screening Level Values for Bioaccumulation dated December 2001.
o Table 2-3 presents the analytical results for the sediments and background samples. Sediment samples contained concentrations of arsenic, copper, nickel, and zinc that exceeded the background concentration or was above one of the screening levels. Additionally, chromium, lead, the PCB aroclor-1248, fluoranthene, and pyrene were found in one sample at concentrations that were above background or one of the screening levels.
o Table 2-4 presents the analytical results for the mid-channel sediment sample and the corresponding background sample. Both samples contained concentrations of zinc that exceeded the bioaccumulation Screening Level Value.
Based on the results of this PA, ODEQ recommended that a SI be conducted. ODEQ also recommended that the site owner consider conducting interim soil removal within the shop and beneath the haul-out ways (e.g., excavation of contaminated soil with proper off-site disposal) to reduce potential human and ecological exposure to contaminants. To date, soil removal has not occurred at the site.
2.6 START Site Visit On September 9, 2011, a site visit of the Siuslaw Marina was conducted. Photographs of the site taken during the site visit are provided in Appendix A. Attendees included the following people:
. Joanne LaBaw, EPA;
. Seth Sadofsky, ODEQ;
. Sharon Watkins, ODEQ;
. Jeff Fetters, E & E;
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2. Site Background
. Derek Pulvino, E & E;
. Kirby Hansen, Siuslaw Marina owner; and
. Natalie, Siuslaw Marina.
The site walk started in the ways building, the location in which boats were hauled out for refurbishing and maintenance. Mr. Hansen stated that the Siuslaw Marina was one of a few places in Florence where commercial boats could be hauled out for maintenance. Mr. Hansen also reiterated that the previous owner of the marina had a contract in place with the USCG to haul out boats for sandblasting and painting. This activity took place in the ways building. Since Mr. Hansen’s ownership of the marina, no commercial boats have been hauled out for maintenance, though privately owned boats have been hauled out from this location. Sandblasting, scraping, and painting have occurred within the ways building since Mr. Hansen’s ownership, though this work is no longer being conducted. The ways have not been used since at least the mid-1980s. A dirt floor is present in the portion of the ways building where sand blasting occurred. No sand blasting grit was visible in the ways building, and no piles of used sand blast grit were present on site.
Current site operations consist of limited small engine repair, operation of a marine supply store, and small boat rentals. Small engine repair takes place in a room within the ways building. This room has a wooden floor with noticeable gaps between the boards. The floor is stained and the room has a petroleum odor. Adjacent to the ways building, the marina operates a store which sells marine supplies, including marine coatings, epoxies, paints, thinners, oil, grease, parts, and fishing supplies. A storage room is located behind the store. According Mr. Hansen, this room was primarily used when the marina was hauling out boats for maintenance. The room is now primarily used for storage. Both the store and storage room are built on pilings over the river.
The marina rents small boats for fishing on the Siuslaw River. Rental boats are stored in the boathouse northeast of the store. A small office is located between the boat hoist and boat launch. This office is used by Y Marina for new boat sales only. No marine services are completed at this location by Y Marina.
One storm drain is located on site near the boat hoist (Figure 2-1). This storm drains is connected to Saubert Creek, a small minimal stream originating in the hills northwest of the site (Figure 1-1). The outfall of this storm drain is approximately 50 feet northeast of the boat hoist. One other storm drain is located in the parking area north of Highway 126. This drain is connected to the ditch running parallel to the north side of Highway 126. A culvert runs under Highway 126 from the ditch, to its outfall under the ways building (Figure 2-1).
The portion of the site northwest of Highway 126 contains Mr. Hansen’s private residence and a campground. The campground is operated by Mr. Hansen and has 24 camp sites. Also located on this portion of the site is a large metal
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2. Site Background
building which is primarily used for storage. No boat maintenance operations have taken place on this portion of the site; however, Mr. Hansen did state that sandblasting of boat trailers has occurred near the western side of the storage building. In general, beach sand was used for sand blasting. Sand was bought only when necessary and not stored on site. No visible sand blast grit was present on this portion of the site during the site walk, and no piles of used sand blast grit were present.
Two drinking water wells are located on the northwest portion of the site: an existing (old) well and a new well (Figure 2-1). The existing well requires chlorination due to e-coli contamination. This well serves Mr. Hansen’s residence, the campground, and the marina. The new well was recently drilled to replace the current well. The new well has a depth of approximately 300 feet and was completed at approximately 75 to 80 feet below ground surface (bgs). At the time of the site visit, the new well had not been developed and was not in service. It is unclear, but assumed that the new well will serve the marina, as well. The existing and new wells are both located upgradient of the marina (Figure 2-1). The Oregon Department of Public Health classifies these wells as “transient non- community” (OPH 2011).
No stained soil or drums were observed on either portion of the site.
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Field Activities and Analytical Protocol
3
A SQAP for the Siuslaw Marina SI was developed by the START prior to field sampling (E & E 2011a). The SQAP describes the sampling strategy, sampling methodology, and analytical program used to investigate potential hazardous substance sources and potential targets. With few exceptions, the SI field activities were conducted in accordance with the approved SQAP. Deviations from the SQAP are described, when applicable, in this section and in the sampling location discussions in Section 6 (source areas) and Section 7 (target areas), and are documented in the Sample Plan Alteration Form (SPAF) provided in Appendix B. All deviations to this SQAP were pre-approved by the EPA Task Monitor (TM) during the field sampling event.
The Siuslaw Marina SI field sampling event was conducted from February 20, 2012 through February 24, 2012. A list of all samples collected for laboratory analysis under this SI is contained in Table 3-1. All sample locations are depicted on Figure 3-1. Photographic documentation of SI field activities is included as Appendix A. Chain-of-custody forms are provided in Appendix C. Laboratory data sheets of analytical results for all samples are provided in Appendix D.
This section describes sampling methodology, analytical protocol, global positioning system coordinates (GPS), and investigation-derived waste (IDW).
3.1 Sampling Methodology Grass, leaves, and other vegetative material, rocks, and other debris unsuitable for analysis were removed from samples before being placed into sample containers. Samples were stored on ice in coolers continuously maintained under the custody of START personnel. Sampling methods used for each sample type are described below.
3.1.1 Surface Soil Sampling Surface soil samples (0 to 6 inches bgs) were collected using dedicated stainless steel spoons. Collected material was placed in a dedicated stainless steel bowl, thoroughly homogenized, and placed into a pre-labeled container.
3.1.2 Shoreline Sediment Sampling Sediment samples (0 to 6 inches bgs) were collected from the shoreline of the Siuslaw River. All samples were collected using dedicated stainless steel spoons. Collected material was homogenized thoroughly in dedicated stainless steel bowls
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and placed into pre-labeled containers. Prior to homogenizing, the sample material was allowed to rest so sediment and water could separate, then the water was decanted prior to mixing.
3.1.3 Siuslaw River Sediment Sampling Sediment samples (0 to 6 inches bgs) were collected from within the Siuslaw River using a Van Veen® dredge deployed from an EPA operated boat. The dredge required multiple deployments at each sample location in order to retrieve sufficient material for the analytical suite being applied due to poor sample recovery. The sampler could not be deployed in the same location when multiple deployments were necessary due to the nature of the dredge (not falling straight down through the water), river current, and wind. After each deployment, sample material was removed from the center portion of the dredge using dedicated stainless steel spoons. Care was taken to not collect sediments that had come into contact with the walls of the sampler. Collected material was thoroughly homogenized in dedicated stainless steel bowls. When possible, water was decanted prior to sample material into pre-labeled sample containers.
3.1.4 Storm Water Catchment Basin Sediment Sampling Sediment samples (0 to 6 inches bgs) were collected from catchment basins using a non-dedicated stainless steel hand auger. Collected material was removed from the hand auger utilizing a dedicated stainless steel spoon and placed in a dedicated stainless steel bowl. Sample material was then homogenized thoroughly and placed directly into pre-labeled sample containers. The hand auger was decontaminated prior to use and after each sample was collected.
3.2 Analytical Protocol Analytical protocols applied to the SI samples included off-site fixed laboratory analysis of butyltin(s), pesticides/PCBs, SVOCs, Target Analyte List (TAL) metals, and total organic carbon (TOC) in varying combinations based on information requirements. Analyses applied to the samples are presented in Table 3-1. Sample locations presented in Figure 3-1.
3.3 Global Positioning System GPS coordinates of SI sample locations were collected utilizing a Trimble™ Geo XH handheld unit. Recorded GPS coordinates by sample point are also presented in Appendix E.
3.4 Investigation-Derived Waste IDW generated during the SI sampling effort included disposable personal protective clothing and dedicated sampling equipment. IDW generated during field activities was rendered unusable by tearing (when appropriate), bagged in opaque plastic garbage bags, and disposed at the EPA equipment warehouse dumpster located in Seattle, Washington. No IDW remains at the site.
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To the greatest extent possible, recyclable materials (i.e., stainless steel bowls, stainless steel spoons, sample container boxes, nitrile glove boxes, and water bottles) were segregated from non-recyclable material. All recyclable material was returned to the EPA warehouse for recycling.
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Quality Assurance/ Quality Control
4
QA/QC data are necessary to determine precision and accuracy, and to demonstrate the absence of interferences and/or contamination of sampling equipment, glassware, and reagents. Specific QC requirements for laboratory analyses are incorporated in the Contract Laboratory Program Statement of Work for Organic Analyses (EPA 2007) and the Contract Laboratory Program Statement of Work for Inorganic Analyses (EPA 2010a). These QC requirements, or equivalent requirements found in the analytical methods, were followed for analytical work on the project. This section describes the QA/QC measures taken for the project and provides an evaluation of the usability of data presented in this report.
Data from Contract Laboratory Program (CLP) and EPA laboratories were reviewed and validated by EPA chemists. Data qualifiers were applied, as necessary, according to the following guidance:
. EPA (2008) USEPA Contract Laboratory Program National Functional Guidelines for Superfund Organic Methods Data Review; and
. EPA (2010b) USEPA Contract Laboratory Program National Functional Guidelines for Inorganic Superfund Data Review.
In the absence of other QC guidance, method- and/or SOP-specific QC limits were also utilized to apply qualifiers to the data.
4.1 Satisfaction of Data Quality Objectives The following EPA (EPA 2000) guidance document was used to establish data quality objectives (DQOs) for this project:
. Guidance for the Data Quality Objectives Process (EPA QA/G-4), EPA/600/R-96/055.
The EPA TM determined that definitive data without error and bias determination would be used for the sampling and analyses conducted during the field activities. The data quality achieved during the field work produced sufficient data that met the DQOs stated in the SQAP (E & E 2011a). A detailed discussion of accomplished project objectives is presented in the following sections.
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4.2 QA/QC Samples Trip blank QA samples are only required for VOC analyses and were not collected for this project. One rinsate blank QA sample was collected for each of the 20 samples collected using non-dedicated sampling equipment. QC samples included matrix spike/matrix spike duplicate (MS/MSD) and/or blank spike (BS) samples at a rate of one MS/MSD and/or BS per 20 samples per matrix.
4.3 Project-Specific Data Quality Objectives The laboratory data were reviewed to ensure that DQOs for the project were met. The following describes the laboratories’ abilities to meet project DQOs for precision, accuracy, and completeness and the field team's ability to meet project DQOs for representativeness and comparability. The laboratories and the field team were able to meet DQOs for the project.
4.3.1 Precision Precision measures the reproducibility of the sampling and analytical methodology. Laboratory and field precision is defined as the relative percent difference (RPD) between duplicate sample analyses. The laboratory duplicate samples or MS/MSD samples measure the precision of the analytical method. The RPD values were reviewed for all samples. A total of 61 sample results (approximately 2.1% of the data) were qualified as estimated quantities (J or UJ) based on precision outliers; therefore, the project DQO for precision of 90% was met.
4.3.2 Accuracy Accuracy indicates the conformity of the measurements to fact. Laboratory accuracy is defined as the surrogate spike percent recovery (%R) or the MS/MSD/BS %Rs for all laboratory analyses. The surrogate %R values were reviewed for all appropriate sample analyses. A total of 29 sample results (approximately 1.0% of the data) were qualified as estimated quantities (J or UJ) and five sample results (approximately 0.2% of the data) were rejected (R) based on accuracy outliers; therefore, the project DQO for precision of 90% was met.
The %R values were reviewed for all MS/MSD/BS analyses. A total of five sample results (approximately 0.2% of the data) were qualified based on accuracy outliers; therefore, the project DQO for accuracy of 90% was met.
4.3.3 Completeness Data completeness is defined as the percentage of usable data (usable data divided by the total possible data). All laboratory data were reviewed for data validation and usability. A total of five sample results (approximately 0.2% of the data) were rejected (R); therefore, the project DQO for completeness of 90% was met.
4.3.4 Representativeness Data representativeness expresses the degree to which sample data accurately and precisely represent a characteristic of a population, parameter variations at a sampling point, or environmental condition. The number and selection of
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4. Quality Assurance/Quality Control
samples were determined in the field to accurately account for site variations and sample matrices. The DQO for representativeness was met.
4.3.5 Comparability Comparability is a qualitative parameter expressing the confidence with which one data set can be compared to another. Data produced for this site followed applicable field sampling techniques and specific analytical methodology. The DQO for comparability was met.
4.4 Laboratory QA/QC Parameters The laboratory data also were reviewed for holding times/temperatures/sample containers, laboratory blank samples, serial dilution analyses, and rinsate blanks. These QA/QC parameters are summarized below.
4.4.1 Holding Times/Temperatures/Sample Containers All holding times, sample temperatures, and containers were acceptable.
4.4.2 Laboratory Blanks All laboratory blanks met the frequency criteria. The following potential contaminants of concern (COCs) were detected in the laboratory blanks:
. Inorganics: Aluminum, antimony, arsenic, calcium, mercury, potassium, and sodium.
. Pesticides: alpha-BHC and delta-BHC.
. SVOCs: Acetophenone, bis(2-ethylhexyl)phthalate, benzaldehyde, di-n- butylphthalate, dimethylphthalate, naphthalene, and phenol.
See the data validation memoranda for results qualified based on blank contamination.
4.4.3 Serial Dilution Analyses Serial dilution analyses met the frequency criteria. A total of 26 sample results (approximately 0.9% of the data) were qualified as estimated quantities (J or UJ) based on serial dilution outliers.
4.4.4 Rinsate Blanks Rinsate blank analyses were performed at a frequency of one per 20 samples collected using non-dedicated sampling equipment (e.g., hand auger). There were no detections in the rinsate blank analysis that affected sample results.
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Analytical Results Reporting and Background Samples
5
This section describes the reporting and methods applied to analytical results presented in Sections 6 (sources) and 7 (targets) of this report, and discusses background locations. Table 3-1 lists all samples collected for laboratory analysis.
5.1 Analytical Results Evaluation Criteria Analytical results presented in the summary tables of Sections 6 and 7 show all analytes detected above laboratory detection limits in bold type. Analytical results indicating significant/elevated concentrations of contaminants in source samples (Section 6) and target samples (Section 7), with respect to background concentrations, are shown underlined and in bold type. For the purposes of this investigation, significant/elevated concentrations are those concentrations that are:
. Equal to or greater than the sample’s Contract Required Quantitation Limit (CRQL) or the Sample Quantitation Limit (SQL) when a non-CLP laboratory was used; and
. Equal to or greater than the background sample’s CRQL or SQL when the background concentration was below detection limits; or
. At least three times greater than the background concentration when the background concentration equaled or exceeded the detection limits.
5.1.1 Sample Results Reporting The analytes aluminum, calcium, iron, magnesium, potassium, and sodium are common earth crust elements. Based on EPA, Region 10 policy, these common earth crust elements will not be discussed in this report.
5.2 Background Samples Background samples were collected for each of the naturally occurring media from which SI samples were collected. These media are surface soil and sediment. Results for the appropriate background samples are shown in the first column of the analytical results summary tables in Sections 6 and 7 for comparison against source or target results.
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5. Analytical Results Reporting and Background Samples
5.2.1 Background Surface Soil Sample Location One background surface soil sample (BK01SS) was collected the northwest portion of the site (north of High Way 126) from an area expected to be outside the site’s range of influence (Figure 3-1). This sample was be used for comparison to all soil samples collected from the parking area (i.e., samples PA01SS through PA04SS).
5.2.1 Background Sediment Samples Three background sediment samples were collected to account for the various targets sampled. Two samples were collected from the Siuslaw River; BK01SD was collected approximately 1.8 miles upstream of the site, and BK02SD was collected approximately 0.60 mile upstream of the site (Figure 3-1). Sample BK01SD is considered the background sample for comparison to the sediment samples collected from the Siuslaw River (i.e., samples SR01SD and SR07SD through SR14SD). BK02SD is considered the background sample for comparison to the sediment samples collected from the wetland west of the site (i.e., samples SR02SD through SR06SD and WB01SD through WB04SD). Finally, one sediment sample (BK03SD) was collected from Saubert Creek prior to it entering the storm water system (Figure 3-1). This sample is considered the background sample for comparison to samples collected from the storm drains (i.e., SD01SD and SD02SD). Analytical results are included in Tables 6-1, 6-2, and 7-2.
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Potential Sources
6
This section describes potential sources and sample locations.
6.1 Contaminated Soil Based on information included in ODEQ’s reports for the property and visual observations of the START during the site walk, the principal sources of contamination stem from boat maintenance and refurbishing activities at the property. Waste streams of primary concern include boat hull and bottom coating waste removed during hull preparation and cleaning. Engine and mechanical repair also occur on site. These activities typically occurred within a building located over the Siuslaw River and, therefore, may pose a threat to this waterway. No primary or secondary containment has been documented in or around this area of contamination.
Previous sampling conducted by ODEQ in August 1998 indicated that soils near the ways building has been contaminated with butyltin(s) and PCBs (Table 2-1). Further, additional sampling conducted by ODEQ in January 2005 indicated that concentrations of both arsenic and chromium within the ways building exceeded the EPA Region 9 PRGs (Table 2-2). The volume and/or area of this contamination is not known.
The property located northwest of Highway 126 has not been assessed prior to this SI. Based on conversations during the site visit, portions of this property at the current parking lot were used for sandblasting boat trailers. Butyltins and metals are the primary COCs for this area. Four sediment samples (WB02SD through WB04SD) were collected from the ways building and four surface soil samples (PA01SS through PA04SS) were collected from the parking area north of Highway 126. Figure 3-1 provides sample locations. Samples collected from within the ways building indicted the presence of four butyltins (butyltin trichloride, dibutyltin dichloride, tetrabutyltin, and tributyltin chloride), two chlorinated pesticides (4,4’-DDD and 4,4’-DDT) and seven TAL metals (arsenic, chromium, cobalt, copper, lead, nickel, and zinc) at significant concentrations relative to background concentrations. One sample also contained a significant concentration of pentachlorophenol.
Two of the four samples collected from the parking area contained significant concentrations of TAL metals relative to the background concentrations. One of the samples contained chromium and nickel at significant concentrations while the other contained a significant concentration of arsenic.
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6. Potential Sources
Table 6-1 provides analytical data results for sediment samples collected from the ways building, and Table 6-2 provides sample results for surface soils collected from the parking area north of Highway 126.
6.2 Storm Water Catchment Basins Two storm water catchment basins are located on the site, one near the boat hoist and the other in the parking lot area north of Highway 126 (Figure 1-2). Both outfalls discharge directly into the Siuslaw River.
Sediment samples (SD01SD and SD02SS) were collected from each storm water catchment basin as well as each catchment outfall (SR01SD and WB01SD). Note that the sample location ID of sample SD02SS was inadvertently labeled as a surface soil sample when, in fact, it is a sediment sample. The sample location ID was not changed in order to remain consistent with the analytical data sheets. Figure 3-1 provides sample locations.
One TAL metal (lead) was present at a significant concentration in the sample collected from storm water catchment basin in the north parking area.
Table 6-3 provides analytical data results for sediment samples collected from both the catchment basins.
6.3 Ground Water Seep (Source Unidentified) During the SI field event, the Siuslaw Marina operator identified a seep along the northern shore of the Siuslaw River and downstream of the site. This seep was located on the downstream portion of the former veneer plant property. The ground water seep is only visible during low tide. The ground water emanating from the seep had a significant sulfur-like odor. After consulting with the TM, one sample of opportunity (SR01GW) was collected from this seep and submitted for laboratory analysis. Figure 3-1 provides the sample location. Table 6-4 provides analytical data results for the ground water seep sample.
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Surface Water Migration Pathway and Targets
7
Because there are relatively few targets associated with ground water migration, soil exposure, and air migration pathway, the TM determined that this section should focus solely on the surface water migration pathway.
The surface water migration pathway Target Distance Limit (TDL) begins at the probable point of entry (PPE) of surface water runoff from the site to a surface water body, and then extends downstream for 15 miles. Figure 7-1 depicts the surface water migration pathway TDL.
7.1 Overland Pathway The Siuslaw Marina site is located adjacent to the Siuslaw River Estuary at approximately river mile 7.5. In general, the land surface of the site gently slopes to the southeast toward the Siuslaw River. The Siuslaw River is tidally influenced, causing the water level to rise and fall at the site. The three PPEs from the site to the Siuslaw River include:
. The northern shoreline of the site, specifically the area in which the haul-out ways are located;
. The outfall of the storm drain located near the boat hoist; and
. The outfall of the storm drain and drainage ditch for the portion of the site located northwest of Highway 126.
Soils at the site are classified as Nestucca silt loam. This deep, somewhat poorly drained soil is on flood plains in the Coast Range, which formed in recent silty alluvium. Typically, the surface layer is very dark brown silt loam about 17 inches thick. The subsoil is dark grayish brown and grayish brown, mottled silty clay loam about 26 inches thick. The substratum to a depth of 60 inches or more is grayish brown and dark gray, mottled clay loam and silty clay. In some areas, strata of coarser textured material are below a depth of 40 inches. Slopes are 0 to 3 percent (SCS 1987). The upland drainage for the site is estimated at approximately 34 acres.
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7. Surface Water Migration Pathway and Targets
7.2 15-Mile TDL The Siuslaw River flows west from the site, carrying runoff from the Coastal Range east of the site. After travelling through Siuslaw Bay, the river ultimately discharges into the Pacific Ocean, approximately 7.5 miles west of the site. Several surface water bodies discharge to the Siuslaw River between the site and the Pacific Ocean. Most are small and unnamed; however, the two largest surface water bodies include the South Inlet and the North Fork of the Siuslaw River. Both surface water bodies are located approximately 1.8 miles west of the site, with the South Inlet discharging on the south side of the Siuslaw River and the North Fork of the Siuslaw River discharging from the north.
Although the Siuslaw River flows to the west, it is tidally influenced, which affects its flow direction. Sea water intrudes up to approximately river mile 8 and mixes with river water to form a brackish zone from river mile 8 up to approximately river mile 14. Beyond river mile 14, the Siuslaw River is tidally influenced; however, no sea water mixing occurs (NOAA 2011a). Because of this, the TDL also extends east of the site to river mile 14. The western end of the 15-mile TDL extends approximately 7.55 miles downstream in the Siuslaw River to its confluence with the Pacific Ocean. The 15-mile TDL concludes as a 7.45- mile radial arc within the Pacific Ocean. Figure 7-1 presents the 15-mile TDL.
The average flow rate of the Siuslaw River measured near Mapleton, Oregon in 2010 is estimated to be 1,871 cubic feet per second (USGS 2011). This measurement was taken on the North Fork of the Siuslaw River. No measurement points could be located for the main fork of the Siuslaw River. Flow on the main fork of the Siuslaw River is likely higher than that of the North Fork.
The depth of the Siuslaw River between the site and its mouth at the Pacific Ocean ranges from less than a foot along shorelines to a depth of 19 feet in the navigational channel (NOAA 2011b). Available navigational charts do not include the 15-mile TDL in its entirety; however, it is assumed that the Pacific Ocean reaches depths greater than 150 feet within the 15-mile TDL (NOAA 2011b). These surface water bodies within the 15-mile TDL are classified as moderate to large streams (Siuslaw River); coastal tidal water (Siuslaw Bay); and shallow to moderate depth ocean zones (Pacific Ocean).
The average annual precipitation measured in Florence, Oregon is 81.71 inches (WRCC 2011). The 2-year, 24-hour rainfall event for the area of the site is 5 inches (DOC 1961). Floodplain maps developed by the Federal Emergency Management Agency indicate that the site is located in a 100-year floodplain (FEMA 2005). Further, the site owner indicated that, approximately two weeks prior to the field event, the site was flooded due to heavy rain.
7.3 Targets Several environmental targets, or receptors, are present within the surface water migration pathway TDL. These targets are discussed below.
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7.3.1 Drinking Water There are no drinking water intakes located on the Siuslaw River within the 15-mile TDL (ODEQ 2005). Surface water is not used or usable as a drinking water source within the 15-mile TDL for the site. Additionally, surface water is not used as a resource (e.g., irrigation of 5 or more acres of commercial food or forage crop, commercial livestock, or as an ingredient in commercial food preparation) within the 15-mile TDL. While no documentation could be found regarding the presence of major or designated water recreation areas within the 15-mile TDL, due to its use an active recreational sport fishery, the Siulsaw River is assumed to contain a major water recreation area.
7.3.2 Human Food Chain The Siuslaw River and portion of the Pacific Ocean within the 15-mile TDL offer a good variety of sport fishing opportunities for salmon and steelhead, along with bottom-dwelling sturgeon. In addition to sport fishing, commercial fishing occurs within the 15-mile TDL.
7.3.2.1 Sport Catch Sport catch harvest within the 15-mile TDL is reported for the Siuslaw River and the Port of Florence.
Port of Florence harvest numbers represent fish that have been caught in the Pacific Ocean and brought into the port. Based on the Oregon Department of Fish and Wildlife (ODFW) 2009 Sport Fishing Catch Expanded Preliminary Report which reports the number of fish caught, 20 Chinook salmon (Oncorhynchus tshawytscha) and 1,532 Coho salmon (Oncorhynchus kisutch) were caught in the Pacific Ocean and reported at the Port of Florence (ODFW 2011a). Because the 15-mile TDL extends greater than 7 miles into the Pacific Ocean, it is assumed that the entire sport harvest reported for the Port of Florence was caught within the 15-mile TDL. In addition to the sport harvest reported for the Port of Florence, 1,704 fall Chinook salmon, 93 Coho salmon, 1,910 winter steelhead (Oncorhynchus mykiss), and 7 white sturgeon (Acipenser transmontanus) were harvested from the Siuslaw River (ODFW 2011a). This data source does not include a map of the catch area; however, it is assumed that all the catch reported for the Siuslaw River was caught within the 15-mile TDL. Table 7-1 presents sport catch harvest, in pounds, within the 15-mile TDL.
Sport crab fishing and clamming occur within the 15-mile TDL; however, ODFW does not require crab fisherman or clammers in Oregon to report their catch; thus, no catch record data are available (Buckman 2011). It is assumed that between 0 and 100 pounds of Dungeness crab (Metacarcinus magister) and between 0 and 100 pounds of clams are caught from each the Pacific Ocean and Siuslaw River for human consumption from within the TDL.
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7. Surface Water Migration Pathway and Targets
7.3.2.2 Commercial Harvest Oregon does not separate commercial fishing harvest by catch area. Instead, commercial catch is reported by the port into which the catch was brought. With the exception of a small commercial crab fishery in Siuslaw River Bay, all commercial fishing takes place in the Pacific Ocean.
Because the portion of the TDL extending into the Pacific Ocean is small compared to the area in which commercial fishing occurs in, commercial fish harvest in the Pacific Ocean cannot be accurately determined. In 2010, 359 pounds of Dungeness crab were harvested from Siuslaw River Bay based on ODFW commercial landings data (ODFW 2011b) for the port of Florence. Table 7-1 presents commercial harvest, in pounds, within the 15-mile TDL.
7.3.3 Environmental Targets Six federal- and/or state-listed endangered or threatened species occur within the 15-mile TDL. These include the following:
. Pacific Coast populations of the Western Snowy Plover (Charadrius alexandrinus nivosus), a federal- and state-listed threatened species (ODEQ 2005, ODFW 2011c, USFWS 2011);
. Marbled murrelet (Brachyramphus marmoratus), a federal- and state-listed threatened species (ODEQ 2005, ODFW 2011c, USFWS 2011);
. Northern sea lion (Eumetopias jubatus), a federal- and state-listed threatened species (ODEQ 2005, ODFW 2011c, USFWS 2011);
. Oregon Coast Coho salmon (Oncorhynchus kisutch), a federal- and state- listed threatened species (ODEQ 2005, ODFW 2011c, USFWS 2011);
. California brown pelican (Pelecanus occidentalis californicus), a state-listed endangered species (ODEQ 2005, ODFW 2011c); and
. Bald eagle (Haliaeetus leucocephalus), a state-listed threatened species (ODEQ 2005, ODFW 2011c).
Portions of the Oregon Coast within the 15-mile TDL have been designated as critical habitat for the Pacific Coast population of the Western Snowy Plover. This critical habitat is bounded by Sutton Creek to the south, Heceta Head to the north, the Oregon Dunes National Recreation Area to the east, and the Pacific Ocean to the west (NARA 2011). The Oregon Dune National Recreation Area is located within the 15-mile TDL.
Approximately 20.5 miles of wetland frontage exists on the Siuslaw River along the surface water migration pathway 15-mile TDL. Approximately 0.16 mile of wetland frontage is present adjacent to the ways building. Further, based on National Wetland Inventory maps, a portion of the ways building may be located
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7. Surface Water Migration Pathway and Targets
on a wetland. Based on conversations with the site owner, the ways building is considered a historic building and was built before wetlands mapping occurred. A wetlands delineation would need to be conducted to determine if the ways building is located on a wetland. No wetlands are present on the Pacific Ocean within the 15-mile TDL (Zawistoski 2011).
7.4 Sediment Sample Locations and Results Fourteen sediment samples were collected from the Siuslaw River (Figure 3-1). . Six sediment samples were collected from the shore line of the Siuslaw River: two from the wetland southwest of the site (SR05SD and SR06SD), three in front of the ways building (SR02SD through SR04SD), and one at a storm drain outfall near the boat hoist (SR01SD). Of these, samples SR02SD and SR04SD through SR06SD represent wetland target samples.
Seven additional samples were collected from within the Siuslaw River: two downriver of the site off shore of the former veneer plant (SR12SD and SR13SD), four in front of the site and outside of the boat docks (SR08SD through SR11SD), and one upriver of the boat launch (SR07SD). Additionally, one sediment sample of opportunity (SR14SD) was collected from the Siuslaw River at a ground water seep near the former veneer plant.
The six samples (SR01SD through SR06SD) that were collected from the shoreline of the Siuslaw River contained elevated concentrations of four butyltins(butyltin trichloride, dibutyltin dichloride, tetrabutyltin, and tributyltin chloride) in various combinations. Five of these samples contained elevated concentrations of TAL metals (cadmium, chromium, cobalt, copper, lead, mercury, nickel, and zinc) in various combinations. Sample SR04SD contained the highest number of contaminants. . Two of the samples (SR07SD and SR10SD) collected from within the Siuslaw River contained elevated concentrations of contaminants relevant to background concentrations. Sample SR10SD contained the highest number of contaminants at elevated concentrations which included three butyltins (butyltin trichloride, dibutyltin dichloride, and tributyltin chloride) and one TAL metal (nickel).
Figure 3-1 provides sample locations. Table 7-2 provides sediment sample analytical results.
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Summary and Conclusions
8
The Siuslaw Marina is located adjacent to the Siuslaw River estuary, approximately 2 miles east of Florence, Oregon, on Highway 126. The site encompasses approximately 1 acre of land on the southeast side of Highway 126 (adjacent to the Siuslaw River) and less than 0.25 acre northwest of Highway 126.
The site was originally developed by the Columbia River Packing Company as a loading and unloading dock, and later developed into a boat yard by John McCarty for service and maintenance of boats. The Siuslaw Marina began operations at the property in October 1978, providing many of the same services as the previous marina operator; however, due to their deteriorated condition, the haul-out ways have not been used since the mid-1980s. For this reason, only minimal vessel maintenance activities currently occur at the site. Services at the site have included vessel servicing and maintenance, hull refurbishing, and preparing hulls for marine paint application. Hull surface preparation was completed within the ways building.
The ways building is considered to be the primary source of contaminants to the Siuslaw River. Analysis of samples collected as part of this SI indicates the presence of the COCs at significant concentrations at the following areas:
Ways Building (sediment/source): Samples collected from within the ways building indicted the presence of four butyltins (butyltin trichloride, dibutyltin dichloride, tetrabutyltin, and tributyltin chloride), two chlorinated pesticides (4,4’-DDD and 4,4’-DDT) and seven TAL metals (arsenic, chromium, cobalt, copper, lead, nickel, and zinc) at significant concentrations relative to background concentrations. Parking Area (soil/source): Samples collected from the parking area northwest of the site indicated the presence of three TAL metals (arsenic, chromium, and nickel) at significant concentrations relative to background concentrations. Siuslaw River (sediment/target): Samples collected from the shoreline of the Siuslaw River indicated the presence of four butyltins (butyltin trichloride, dibutyltin dichloride, tetrabutyltin, and tributyltin chloride) and eight TAL metals (cadmium, chromium, cobalt, copper, lead, mercury, nickel, and zinc) at elevated concentrations relative to background concentrations. Samples collected from within the Siuslaw River indicate the presence of three butyltins (butyltin trichloride,
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8. Summary and Conclusions
dibutyltin dichloride, and tributyltin chloride) and two TAL metals (mercury and nickel).
With exception of cadmium and mercury, all of the target analytes were also detected at significant concentrations in on-site sources. For this reason, it appears these analytes have migrated to, or have been released directly to, the Siuslaw River.
Based on PA and SI sampling, actual contamination is documented to be present in the Siuslaw River and in wetlands adjacent to this river.
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References
9
Buckman, Bob, 2011, Oregon Department of Fish and Wildlife, Personal Conversation with Jeff Fetters, E & E PM, June 29, 2011.
DOC (Department of Commerce), 1961 Technical Paper No. 40, Rainfall Frequencies Atlas of the United States for Durations from 30 Minutes to 24 Hours and Return Periods from I to 100 Years, May 1961.
E & E (Ecology and Environment, Inc.), 2011a, Final Sampling and Quality Assurance Plan for Siuslaw Marina, January 10, 2012, TDD: 11-01-0009.
———, 2011b, Site Visit Log Book, Siuslaw Marina, Florence, Oregon.
EPA (United States Environmental Protection Agency), January 2010a, USEPA Contract Laboratory Program Statement of Work for Inorganic Superfund Methods, Multi-Media, Multi-Concentration, ISM01.2.
____, January 2010b, USEPA Contract Laboratory Program National Functional Guidelines for Inorganic Superfund Data Review, OSWER 9240.1-51, EPA 540-R-10-011.
____, June 2008, USEPA Contract Laboratory Program National Functional Guidelines for Superfund Organic Methods Data Review, OSWER 9240.1-48, USEPA-540-R-08-01.
____, April 2007, USEPA Contract Laboratory Program Statement of Work for Organics Analysis, Multi-Media, Multi-Concentration, SOM01.2.
____, August 2000, Guidance for the Data Quality Objectives Process, EPA QA/G 4, Office of Research and Development, Washington, D.C., EPA/600/R 96/055. FEMA (Federal Emergency Management Agency), 2005, Flood Insurance Rate Map, Lane County, Oregon, Washington, Map Number 41039C1435F.
Holger & Surendonk 2002, Return, Size, and Age of Steelhead at the Besadny Anadromous Fisheries Facility, http://dnr.wi.gov/fish/lakemich/BAFF_2002.pdf, Accessed October 2012
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9. References
NARA (National Archives and Records Administration), 2011, Endangered and Threatened Wildlife and Plants; Revised Critical Habitat for the Pacific Coast Population of the Western Snowy Plover, Federal Register Volume 76, Number 55, http://www.federalregister.gov/articles/2011/03/22/2011- 4906/endangered-and-threatened-wildlife-and-plants-revised-critical- habitat-for-the-pacific-coast#p-170, accessed October 14, 2011.
NOAA (National Oceanic and Atmospheric Administration), 2011a, National Centers for Coastal Ocean Science, Estuary Summaries web page, http://ccma.nos.noaa.gov/stressors/pollution/eutrophication/eutrocards/siu slaw.pdf, accessed October 18, 2011.
———, October 2011b, Siuslaw River Navigational Chart, #18583, http://www.charts.noaa.gov/OnLineViewer/18583.shtml, accessed November 1, 2011.
ODEQ (Oregon Department of Environmental Quality), June 2005, Preliminary Assessment, Suislaw Marina, LLC, Prepared for the United States Environmental Protection Agency.
ODFW (Oregon Department of Fish and Wildlife), June 2011a , Sport Catch Statistics, http://www.dfw.state.or.us/resources/fishing/sportcatch.asp, accessed June 15, 2011.
———, June 2011b, Commercial Landing Statistics, http://www.dfw.state.or.us/fish/commercial/landing_stats/2010AnnRep/in dex2010.asp, accessed June 15, 2011.
———, 2011c, Threatened, Endangered, and Candidate Fish and Wildlife Species, http://www.dfw.state.or.us/wildlife/diversity/species/threatened_endanger ed_candidate_list.asp, accessed October 14, 2011.
OPH (Oregon Department of Public Health), October 2011, Drinking Water Web Site, http://public.health.oregon.gov/healthyenvironments/drinkingwater/pages/ index.aspx, accessed October 20, 2011.
SCS (Soil Conservation Service), 1987, Soil Survey of Lane County Area, Oregon.
USGS (United States Geological Survey), 2011, National Water Information System Web Interface, Surface Water Data for Oregon, USGS 14307620 Siuslaw River near Mapleton, Oregon, accessed April 2011.
USFWS (United Stated Fish and Wildlife Service), 2011, Endangered Species Program web page, http://www.fws.gov/endangered/, accessed October 14, 2011.
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9. References
WRCC (Western Regional Climate Center), 2011, Florence #2, Oregon (352973), http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?or2973, accessed June 30, 2010.
Wydoski, Richard S, and Richard R. Whitney, 2003, Inland Fishes of Washington, Second Edition Revised and Expanded, University of Washington Press, Seattle, Washington
Zawistoski, Mark, 2011, National Wetlands Inventory Memorandum, April 29, 2011).
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Figures
10:\Siuslaw Marina Abbv. SI\TDD No. 11-01-0009 Source: Maptech, Inc. 2001. OREGON
N Florence
Saubert Creek
Site Location
Figure 1-1 SIUSLAW MARINA ecology and environment, inc. Florence, Oregon SITE VICINITY MAP & Global Specialists in the Environment Seattle, Washington 0 2000 4000 Date: Drawn by: Approximate Scale in Feet 12-19-11 AES 10:START-3\11010009\fig 1-1 Source: Google Earth Pro 2011.
N
Owner Residence Campground
Approximate Location Highway 126 of Saubert Creek New Well Location Parking Area Storage Building Boat Launch Old Well Location Ditch Storm Drain Boat Sales Office Parking Area/ Boat Trailer Storm Drain Sand Blast Area Drain Line Boat Hoist Drain Line
Engine Repair Outfall Outfall Ways Building
Ditch Store Boathouse
SIUSLAW RIVER Haul-Out Ways Pier & Piling
Wetland
SIUSLAW MARINA Figure 2-1 ecology and environment, inc. Florence, Oregon SITE MAP & Global Specialists in the Environment Seattle, Washington 0 70 140 Date: Drawn by: Approximate Scale in Feet 3/29/12 AES 10:START-3\11010009\fig 2-1 N
Ways Building
Storage/Engine Repair Boat Hoist
Store Boat House
Siuslaw River
Figure 2-2 SIUSLAW MARINA JANUARY 2005 ODEQ PRELIMINARY ASSESSMENT ecology and environment, inc. Florence, Oregon SEDIMENT SAMPLE LOCATIONS & Global Specialists in the Environment Seattle, Washington Source: ODEQ 2005. Date: Drawn by: 3-29-12 AES 10:START-3\11010009\fig 2-2
0 2000 4000 Approximate Scale in Feet N
Figure 2-3 SIUSLAW MARINA JANUARY 2005 ODEQ PRELIMINARY ASSESSMENT ecology and environment, inc. Florence, Oregon BACKGROUND SEDIMENT SAMPLE LOCATION & Global Specialists in the Environment Seattle, Washington Source: ODEQ 2005. Date: Drawn by: 3-29-12 AES 10:START-3\11010009\fig 2-3 BK01SD
BK02SD Primary Flow Direction
Siuslaw River
BK03SD Saubert Creek Storage Building
PA01SS BK01SS PA03SS SR07SD Catch Basin PA02SS Catch Basin Vaneere SD01SD SD02SD Plant Parking Area/ PA04SS Boat Trailer Outfall Sand Blast Area Outfall SR01SD SR12SD Ways Building WB01SD SR08SD WB03SD Boat Hoist WB02SD SR13SD SR02SD WB04SD SR09SD SR14SD n io SR04SD ct SR01GW Store ire SR03SD D ow Haul-out Fl y SR10SD Ways ar im SR05SD Pr Wetland
Siuslaw River SR06SD SR11SD
00.05 0.1 0.2 0.3 0.4 0.5 0 25 50 100 200
Miles Feet
Figure 3-1 ecology and environment, inc. SIUSLAW MARINA SAMPLE LOCATION MAP & Global Specialists in the Environment SITE INSPECTION Seattle, Washington Florence, Oregon Date: Drawn by: 3-28-12 JRF 10:START-3\11010009\fig3-1 FIGURE 7-1 6,86/$:0$5,1$ 0LOH 7DUJHW 'LVWDQFH /LPLW )ORUHQFH2UHJRQ 0DS 6RXUFHV 7RSRJUDSKLF0DS IURP (65,DQG1*6 1:, :HWODQGV 0D\
Tables
10:\Siuslaw Marina Abbv. SI\TDD No. 11-01-0009 Table 2-1: August 1998 ODEQ Site Visit Sediment Analytical Results (ppm)
Beneath In Front of Marine1 Bioaccumulation2 Haul-Out Haul-Out antimony <0.30 <0.30 9 10 chromium 1500 140 52 4200 zinc 321 176 124 3 lead 64.9 14 30 128 nickel 792 56.9 16 316 copper 1940 681 19 10 arsenic 7.48 10.8 7 4 Total DDT3 0.024 0.072 4000 300 PCBs (total) 0.3913 0.003 0.022 NA TBT 1.424 0.621 3.4 0.190 Source: ODEQ 2005 Preliminary Assessment Report NA Not Available Shaded Values exceed the Level II Marine Toxicity or Bioaccumulation Screening Level Values 1 DEQ Guidance for Ecological Risk Assessment, Level II Screening Level Values, Marine Toxicity, dated December 2001 2 DEQ Guidance for Ecological Risk Assessment, Level II Screening Level Values, Bioaccumulation, dated December 2001 3 Sum of 4,4’-DDD, 4,4’-DDE and 4,4’-DDT Table 2-2: January 2005 ODEQ Perliminary Assessment Surface Soil Sample Results (mg/kg)
SS01 Residential Industrial Soil PRG2 Soil PRG1 arsenic 4.22 0.39 1.6 chromium 1230 210 450 copper 912 3100 41,000 lead 93.5 400 750 nickel 2320 1600 20,000 zinc 196 23,000 100,000 di-n-butyl phthalate 3.28 6100 62,000 Source: ODEQ 2005 Preliminary Assessment Report 1 EPA Region 9 Residential Soil PRG 2 EPA Region 9 Industrial Soil PRG Shaded values exceed EPA Region 9 Residential or Industrial Soil PRGs Table 2-3: January 2005 ODEQ Preliminary Assessment Near-Shore Sediment Sample Results (ppm) NS01 NS02 NS03 Bkgrd. DMEF Marine Bioaccumulation (MC02) SLs1 SLVs2 SLVs3 arsenic 4.13 9.47 4.79 2.38 57 7 4 chromium 33.8 459 32.7 26.2 NA 52 4200 copper 42.5 1490 27.9 8.01 390 19 10 lead 7.61 45.9 8.48 5.97 450 30 128 nickel 18.4 293 18.4 16.0 140 16 316 zinc 57.3 372 60 59.7 410 124 3 PCB-1248 - 0.178 - <0.033 0.13 NA 0.002 PCB-1260 - 0.0459 - <0.033 0.96 NA NA fluoranthene - 0.982 - <0.660 1.7 0.113 NA pyrene - 0.996 - <0.660 2.6 0.152 NA tributyltin - <0.003 - <0.003 NA 3.4 0.190 Source: ODEQ 2005 Preliminary Assessment Report NA Not Available - Not Analyzed 1 Dredge Material Evaluation Framework/ Lower Columbia River Management Area Screening Levels (DMEF SLs), dated April 1998 2 DEQ Guidance for Ecological Risk Assessment, Level II Screening Level Values, Marine Toxicity, dated December 2001 3 DEQ Guidance for Ecological Risk Assessment, Level II Screening Level Values, Bioaccumulation, dated December 2001 Shaded Values exceed Background, Level II Marine Toxicity Values, and/or Level II Bioaccumulation Values. Bolded values exceed DMEFs. Table 2-4: January 2005 ODEQ Preliminary Assessment Mid-Channel Sediment Sample Results (ppm)
MC01 Bkgrd. DMEF Marine Bioaccumulation (MC02) SLs1 SLVs2 SLVs3 arsenic 1.68 2.38 57 7 4 chromium 13.1 26.2 NA 52 4200 copper 3.45 8.01 390 19 10 lead 3.45 5.97 450 30 128 nickel 7.5 16.0 140 16 316 zinc 30.9 59.7 410 124 3 Source: ODEQ 2005 Preliminary Assessment Report NA: Not Available 1 Dredge Material Evaluation Framework/ Lower Columbia River Management Area Screening Levels (DMEF SLs), April 1998 2 DEQ Guidance for Ecological Risk Assessment, Level II Screening Level Values, Marine Toxicity, dated December 2001 3 DEQ Guidance for Ecological Risk Assessment, Level II Screening Level Values, Bioaccumulation, dated December 2001 Shaded Values meet or exceed Marine Toxicity SLVs, and/or Level II Bioaccumulation SLVs Table 3-1 Sample Analysis Summary Sample Analysis
CLP EPA Sample Sample Number Station Number Matrix Sampler Date Time Description Butyltins TAL Total Metals Pesticides/PCB s SVOCs Total Organic Carbon Background 12084100 BK01SD JRCQ0 SD Derek Pulvino 2/22/2012 9:58 X X X X X Sandy silt, brown, high mica content, saturated, MS/MSD 12084101 BK02SD JRCQ1 SD Derek Pulvino 2/22/2012 10:17 X X X X X Silty sand, dark brown, high organics, sligh sulfur odor, saturated 12084102 BK03SD JRCQ2 SD Derek Pulvino 2/21/2012 12:00 X X X X X Silty sand, brown, saturated, MS/MSD 12084103 BK01SS JRCQ3 SS Derek Pulvino 2/20/2012 17:35 X X X X NA Silty loam, trace gravel, brown, moist Parking Area 12084104 PA01SS JRCQ4 SS Derek Pulvino 2/20/2012 15:10 X X X X NA Silty sandy gravel, light brown, saturated 12084105 PA02SS JRCQ5 SS Jeff Fetters 2/20/2012 15:25 X X X X NA Silty sandy gravel, light brown, saturated 12084106 PA03SS JRCQ6 SS Derek Pulvino 2/20/2012 16:00 X X X X NA Silty sandy gravel, light brown, saturated 12084127 PA04SS JRCS7 SS Jeff Fetters 2/20/2012 15:40 X X X X NA Silty loam, trace organics, trace gravel, brown to light brown, satruated Storm Drain Catch Basin 12084107 SD01SD JRCQ7 SD Derek Pulvino 2/21/2012 11:40 X X X X X Silty gravel, dark gray, saturated 12084108 SD02SS JRCQ8 SD Jeff Fetters 2/21/2012 11:08 X X X X X Sity sandy gravel, black, saturated Shoreline Siuslaw River 12084109 SR01SD JRCQ9 SD Derek Pulvino 2/20/2012 17:15 X X X X X Sandy silt, black to dark brown, trace gravel, saturated 12084110 SR02SD JRCR0 SD Derek Pulvino 2/20/2012 18:00 X X X X X Sandy silt, 2" very fine sand atop dark brown to black silt, strong sulfur odor, saturated 12084111 SR03SD JRCR1 SD Jeff Fetters 2/20/2012 17:45 X X X X X Sandy silt, 2" very fine sand atop dark brown to black silt, slight sulfur odor, saturated 12084112 SR04SD JRCR2 SD Jeff Fetters 2/20/2012 17:30 X X X X X Sandy silt, brown, 2" atop hard black sand, saturated 12084113 SR05SD JRCR3 SD Derek Pulvino 2/21/2012 8:15 X X X X X Sandy silt, grayish brown to dark grayish brown, saturated 12084114 SR06SD JRCR4 SD Jeff Fetters 2/21/2012 8:10 X X X X X Sandy silt, grayish brown to dark grayish brown, saturated 12084120 SR12SD JRCS0 SD Derek Pulvino 2/22/2012 14:48 X X X X X Silty sand, brown, saturated Sandy silt with gravel, brown, slight sheen on sample, pieces of wood vaneer in sample, 12084121 SR13SD JRCS1 SD Derek Pulvino 2/22/2012 13:35 X X X X X saturated Within Siuslaw River 12084115 SR07SD JRCR5 SD Derek Pulvino 2/22/2012 10:46 X X X X X Sand (medium), light brown, trace silt, high mica content, saturated 12084116 SR08SD JRCR6 SD Derek Pulvino 2/22/2012 11:37 X X X X X Sand (fine to medium), brown, high organics, trace silt, saturated 12084117 SR09SD JRCR7 SD Derek Pulvino 2/22/2012 11:58 X X X X X Sand (medium), light brown, trace silt, high mica content, saturated 12084118 SR10SD JRCR8 SD Derek Pulvino 2/22/2012 12:55 X X X X X Sandy silt, dark gray to light brown, orange mottling, saturated 12084119 SR11SD JRCR9 SD Derek Pulvino 2/22/2012 13:13 X X X X X Sandy silt, brown, trace organics, slight sulfur odor, saturated Ways Building 12084122 WB01SD JRCS2 SD Jeff Fetters 2/21/2012 8:40 X X X X X Sandy silt with gravel, brown, moist
12084123 WB02SD JRCS3 SD Derek Pulvino 2/21/2012 8:57 X X X X X Sandy silt, light brown, high metal content (rust from trolly), yellow/tan sand below 2", moist 12084124 WB03SD JRCS4 SD Derek Pulvino 2/21/2012 9:11 X X X X X Silty with sand, dark gray to brown, moist
12084125 WB04SD JRCS5 SD Derek Pulvino 2/21/2012 8:45 X X X X X Sandy silt, light brown, high metal content (rust from trolly), yellow/tan sand below 2", moist Opportunity Sample 12084128 SR14SD JRCS8 SD Jeff Fetters 2/23/2012 11:33 X X X X X Silty sand, white to gray, saturated 12084129 SR01GW JRCS9 GW Jeff Fetters 2/23/2012 11:33 X X X X NA Ground water, olive green, very strong sulfur odor Rinsate Sample 12084126 RI01WT JRCS6 WT Derek Pulvino 2/21/2012 10:51 X X X X NA Rinsate sample for SD01SD and SD02SD
Notes: All samples collected 0-6 inches below ground surface. Key: CLP = Contract Laboratory Program. EPA = United States Environmental Protection Agency. ID = Identification. MS = Matrix spike MSD = Matrix spike duplicate NA = Not applicable PCBs = Polychlorinated biphenyls SVOCs = Semivolatile organic compounds TAL = Target Analyte List
Page 1 Table 6-1 Ways Building Sediment Sample Analytical Results EPA Sample ID 12084101 12084122 12084123 12084124 12084125 CLP Sample ID JRCQ1 JRCS2 JRCS3 JRCS4 JRCS5 Station Location ID BK02SD WB01SD WB02SD WB03SD WB04SD Description Background Ways Building Butyltins (g/kg) Butyltin trichloride 6.3 U 44 1200 JL 150 JL 3600 JL Dibutyltin dichloride 6.3 U 220 590 JK 200 JK 5700 JK Tetrabutyltin 6.3 U 3.3 JQ 5.2 JK 9.2 UJK 29 JK Tributyltin chloride 6.3 U 230 410 JK 150 JK 2300 JK Chlorinated Pesticides (g/kg) 4,4'-DDD 3.5 U 6.0 U 3.5 U 7.6 U 6.7 4,4'-DDT 3.5 U 6.0 U 3.5 U 7.6 U 18 TAL Metals (mg/kg) Aluminum 16900 JL 17100 2600 26800 9110 Arsenic 2.2 8.8 2.2 4.4 5.5 Barium 91.5 69.8 7.8 JQ 117 34.7 Calcium 1750 2740 810 2610 1770 Chromium 24.8 203 342 43.6 588 Cobalt 7.6 JQ 12.1 7.7 11.8 24.1 Copper 9.5 88.4 369 70.5 1290 Iron 18600 JL 39600 19400 30100 50600 Lead 5.3 35.8 31.9 11.8 118 Magnesium 5070 9560 11400 7610 17500 Manganese 203 422 213 414 555 Nickel 14.6 66.2 226 26.5 1210 Potassium 1200 1590 251 JQ 2140 730 Sodium 782 JQ 1730 251 JQ 4290 1030 Vanadium 33.6 39.5 8.2 49.9 21.4 Zinc 52.6 159 99.6 90.9 163 Semivolatile Organic Compounds (g/kg) Pentachlorophenol 1800 UJK 83 JQ 380 JK 3700 UJK 820 JQ Total Organic Carbon (mg/kg) Total Organic Carbon 21900 27800 483 44000 16800 Note: Bold type indicates the sample result is above the contract required quantitation limit. Underline type indicates the sample result is elevated, as defined in Section 5.
Key: CLP = Contract Laboratory Program. CRQL = Contract Required Quantitation Limit. EPA = United States Environmental Protection Agency. ID = Identification. J = The analyte was positively identified. The associated numerical value is an estimate. K = Unknown bias. L = Low bias. mg/kg = Milligrams per kilogram. g/kg = Micrograms per kilogram. Q = The analyte was positively identified. The associated numerical value is above the instrument detection limit but below the CRQL. SQL = Sample Quantitation Limit. U = The analyte was not detected at or above the associated value. Table 6-2 Surface Soil Analytical Results EPA Sample ID 12084103 12084104 12084105 12084106 12084127 CLP Sample ID JRCQ3 JRCQ4 JRCQ5 JRCQ6 JRCS7 Station Location ID BK01SS PA01SS PA02SS PA03SS PA04SS Description Background North Parking Area Butyltins (g/kg) Butyltin trichloride 6113.2 U 3.3 U 6.9 U Dibutyltin dichloride 8.9 4.5 3.2 U 3.3 U 9.1 Tributyltin chloride 6.4 1.7 JQ 3.2 U 3.3 U 11 Target Analyte List Metals (mg/kg) Aluminum 17200 JL 9250 JL 14600 JL 12500 JL 27600 JL Arsenic 4.1 4.0 2.0 7.0 18.6 Barium 139 17.4 JQ 28.6 33.2 55.4 Calcium 3760 JL 10300 JL 9980 JL 9150 JL 5340 JL Chromium 28.4 33.9 7.2 89.3 70.5 Cobalt 10.4 12.6 15.6 14.3 12.7 Copper 23.8 36.8 32.6 32.6 35.3 Iron 23500 JL 60200 JL 62100 JL 65700 JL 44400 JL Lead 21.9 12.8 6.9 8.8 21.5 Magnesium 5260 4730 3800 5390 5840 Manganese 540 JL 793 JL 820 JL 792 JL 1120 JL Nickel 14.6 13.7 6.1 61.2 20.3 Potassium 1170 1550 980 1090 1420 Vanadium 36.9 7.9 14.1 18.0 58.5 Zinc 101 208 131 184 133 Note: Bold type indicates the sample result is above the contract required quantitation limit. Underline type indicates the sample result is significant, as defined in Section 5.
Key: CLP = Contract Laboratory Program. EPA = United States Environmental Protection Agency. ID = Identification. J = The analyte was positively identified. The associated numerical value is an estimate. L = Low bias. mg/kg = Milligrams per kilogram. g/kg = Micrograms per kilogram. Q = The analyte was positively identified. The associated numerical value is above the instrument detection limit but below the CRQL. U = The analyte was not detected at or above the associated value. Table 6-3 Stormwater Catchment Basin Analytical Results EPA Sample ID 12084102 12084107 12084108 CLP Sample ID JRCQ2 JRCQ7 JRCQ8 Station Location ID BK03SD SD01SD SD02SS Description Background North Parking Area South Parking Area Target Analyte List Metals (mg/kg) Aluminum 22600 17100 22800 Arsenic 3.3 3.8 3 Barium 174 143 67.4 Calcium 3010 3400 1440 Chromium 29.5 35 30.8 Cobalt 11.3 9.6 10.9 Copper 13.8 23.3 16.4 Iron 26800 24700 31100 Lead 10.2 59.4 7.7 Magnesium 4690 5640 5940 Manganese 609 344 131 Nickel 20 26.3 22.4 Potassium 1130 1100 2410 Sodium 923 U 1030 2980 Vanadium 37.1 34.8 41.1 Zinc 78.1 152 88.2 Total Organic Carbon (mg/kg) Total Organic Carbon 33400 31000 6720 Note: Bold type indicates the sample result is above the contract required quantitation limit. Underline type indicates the sample result is significant, as defined in Section 5.
Key: bgs = Below ground surface. CLP = Contract Laboratory Program. CRQL = Contract Required Quantitation Limit. EPA = United States Environmental Protection Agency. ID = Identification. mg/kg = Milligrams per kilogram. U = The analyte was not detected at or above the associated value. Table 6-4 Ground Water Seep Analytical Results EPA Sample ID 12084129 CLP Sample ID JRCS9 Station Location ID SR01GW Description Seep Opportunity Sample Target Analyte List Metals (ug/L) Aluminum 443 Arsenic 3.2 Calcium 17100 Chromium 6.1 Iron 400 Magnesium 44500 Manganese 50.7 Nickel 1 Potassium 21400 Selenium 39.5 Sodium 466000 Note: Bold type indicates the sample result is above the contract required quantitation limit.
Key: CLP = Contract Laboratory Program. CRQL = Contract Required Quantitation Limit. EPA = United States Environmental Protection Agency. ID = Identification. ug/L = micrograms per liter. Table 7-1 Sport and Commercial Catch Data Within the 15-Mile TDL Siuslaw Marina Average Number Pounds per Pounds Species Harvested Fish Harvested Sport Catch (Port of Florence) Chinook salmon 20 22 440 (Oncorhynchus tshawytscha) Coho salmon 1,532 10 15,320 (Oncorhynchus kisutch) Dungeness crab (Metacarcinus magister) N/A N/A > 0 - 100 Sport Catch (Siuslaw River) Dungeness crab (Metacarcinus magister) N/A N/A > 0 - 100 Fall Chinook salmon 1,704 22 37,488 (Oncorhynchus tshawytscha) Coho salmon 93 10 930 (Oncorhynchus kisutch) Winter Steelhead 1,910 6 11,460 (Oncorhynchus mykiss) White Sturgeon 7 31a 217 (Acipenser transmontanus) Commercial Catch (Siuslaw River Bay) Dungeness crab (Metacarcinus magister) N/A N/A 359 Total 66,214 Sources: Holger and Surendonk 2002; ODFW 2011a; ODFW 2011b; Wydoski and Whitney 2003 a – Average weight of sturgeon is calculated using an assumed length of 3 feet 11 inches.
Table 7-2 Siuslaw River Sediment Sample Analytical Results EPA Sample ID 12084100 12084101 12084109 12084110 12084111 12084112 12084113 12084114 12084120 12084121 12084128 12084115 12084116 12084117 12084118 12084119 CLP Sample ID JRCQ0 JRCQ1 JRCQ9 JRCR0 JRCR1 JRCR2 JRCR3 JRCR4 JRCS0 JRCS1 JRCS8 JRCR5 JRCR6 JRCR7 JRCR8 JRCR9 Station Location ID BK01SD BK02SD SR01SD SR02SD SR03SD SR04SD SR05SD SR06SD SR12SD SR13SD SR14SD SR07SD SR08SD SR09SD SR10SD SR11SD Description Background Shoreline Siuslaw River Within Siuslaw River Butyltins (g/kg) Butyltin trichloride 5.2 UJK 6.3 U 6.4 U 10 400 780 JL 5.3 JQ 6.7 U 5.9 U 13 4.1 U 4.2 U 4.4 U 5.2 UJK 38 6.1 U Dibutyltin dichloride 5.2 U 6.3 U 12 44 1700 2100 JK 26 6.7 U 5.9 U 110 4.1 U 4.2 U 4.4 U 5.2 U 130 6.1 U Tetrabutyltin 5.2 U 6.3 U 6.4 U 7 U 13 120 JK 5.9 U 6.7 U 5.9 U 6.4 U 4.1 U 4.2 U 4.4 U 5.2 U 4.6 U 6.1 U Tributyltin chloride 5.2 U 6.3 U 2.8 JQ 28 580 2500 JK 17 6.7 U 5.9 U 13 4.1 U 4.2 U 4.4 U 5.2 U 23 6.1 U TAL Metals (mg/kg) Aluminum 14800 JL 16900 JL 25600 21900 16500 15500 17100 23600 20700 19300 7290 JL 9260 5120 5140 12700 16500 Arsenic 2.8 2.2 4.3 2.8 4.5 2.1 3.4 3.2 2.4 4.1 1.7 1.3 U 1.3 U 1.3 U 1.4 U 1.7 U Barium 43.2 91.5 74.5 89.6 49.9 94.3 65.7 155 125 93.1 35.3 37.7 23.1 JQ 21.5 JQ 57.9 102 Cadmium 0.91 U 0.89 U 1.2 U 1.0 U 0.29 JQ 1.4 0.84 U 1.0 U 0.84 U 0.96 U 0.7 U 0.65 U 0.66 U 0.66 U 0.69 U 0.87 U Calcium 1430 1750 2200 1780 7010 7360 2130 2480 1610 2440 880 603 JQ 422 JQ 507 JQ 2190 1540 Chromium 24.1 24.8 37.6 34.7 104 715 27.4 30.3 29.4 43.6 12.8 12.2 7.2 7.0 34.1 21.2 Cobalt 6.0 JQ 7.6 JQ 10 JQ 8.9 JQ 7.9 JQ 16.7 8.2 JQ 10.3 9.2 9.6 4.1 JQ 4.0 JQ 2.5 JQ 2.4 JQ 6.6 JQ 6.8 JQ Copper 7.1 9.5 16.4 28.6 146 572 56.4 13.8 12.4 16.9 5 3.5 2.0 JQ 2.0 JQ 9.4 8.8 Iron 18100 JL 18600 JL 29200 22900 20900 30700 22400 25700 23000 28100 10100 JL 10700 6730 6710 14900 18100 Lead 4.5 5.3 8.8 7.8 26.2 88.9 33.5 7.7 7.3 9.8 2.7 2.5 1.9 1.6 3.9 4.9 Magnesium 5310 5070 7390 6370 6290 21700 5290 6220 5860 7010 2970 2800 1620 1680 4170 4640 Manganese 115 203 214 167 165 416 181 330 225 299 140 83.3 54.3 53.2 128 206 Mercury 0.18 U 0.17 U 0.24 U 0.2 U 0.36 0.14 U 0.3 0.2 U 0.17 U 0.19 U 0.14 U 0.27 0.13 U 0.13 U 0.14 U 0.17 U Nickel 12.8 14.6 24.4 20.8 36.2 237 15.3 18.4 17 21.2 6.7 7.2 4.0 JQ 4.0 JQ 72.6 12.4 Potassium 1430 1200 2050 1680 1430 1050 1590 1400 1430 1840 1260 720 463 JQ 425 JQ 993 1090 Sodium 830 JQ 782 JQ 2440 2000 1830 1270 1840 1360 1310 1820 831 357 JQ 284 JQ 657 U 790 1660 Vanadium 28.9 33.6 44.3 38.6 27.9 30 32.6 42.5 37.1 39.7 16.7 15.1 9.8 8.6 22.9 29.2 Zinc 48 52.6 81.5 67.9 223 173 80.3 68.1 64.2 76.1 25.6 29.9 17.9 17.5 41.7 47.5 Total Organic Carbon (mg/kg) Total Organic Carbon 15300 21900 34900 27000 17000 12100 20200 39400 24900 27300 5610 1200 1610 782 7910 16700 Note: Bold type indicates the sample result is above the contract required quantitation limit. Underline type indicates the sample result is elevated, as defined in Section 5.
Key: CLP = Contract Laboratory Program. CRQL = Contract Required Quantitation Limit. EPA = United States Environmental Protection Agency. ID = Identification. J = The analyte was positively identified. The associated numerical value is an estimate. K = Unknown bias. L = Low bias. mg/kg = Milligrams per kilogram. g/kg = Micrograms per kilogram. Q = The analyte was positively identified. The associated numerical value is above the instrument detection limit but below the CRQL. SQL = Sample Quantitation Limit. U = The analyte was not detected at or above the associated value.