3. Relevant dates for regulatory tracking purposes are included in Table 1.

Transcription

1 CENWS-OD-TS-DM MEMORANDUM FOR RECORD 3 January 2005 SUBJECT: DETERMINATION OF THE SUITABILITY OF THE POST-DREDGE SEDIMENT SURFACE QUALITY RELATIVE TO THE WASHINGTON DEPARTMENT OF ECOLOGY S ANTIDEGRADATION POLICY FOR THE LAKESIDE INDUSTRIES SAND AND GRAVEL SPILL REMOVAL DREDGING ( ) AS EVALUATED UNDER SECTION 404 OF THE CLEAN WATER ACT. 1. The following summary reflects the consensus determination of the Agencies that comprise the regional Dredged Material Management Program (DMMP) for the State of Washington. The agencies include the Corps of Engineers, Department of Ecology, Department of Natural Resources, and the Environmental Protection Agency. The agencies are charged with determining the suitability of the post-dredge sediment surface quality after dredging approximately 142 cubic yards of spilled sand and gravel to restore water depths for barges docking at the pier. The sand/gravel spill material was not tested, but was considered by the DMMP to be clean material using best-professional-judgement. This material was dredged and subsequently disposed upland at an Ecology approved upland site. The DMMP agencies required a sediment quality assessment of the post-dredge sediment surface based on a reason-tobelieve after Ecology s SEDQUAL Sediment Quality Database showed a nearby station with 15 chemical CSL exceedances. 2. The project was ranked high (Salmon Bay) for testing purposes, and the Corps permit special condition required a sediment quality assessment of the top 10 cm of surface sediment following dredging of the sand/gravel spill material. A van Veen grab was used to collect a representative composited sample of the surface material at a single location (Figures 1 and 2). 3. Relevant dates for regulatory tracking purposes are included in Table 1. Table 1. Regulatory Tracking Information and Dates Corps Permit #: Initial SAP submittal date: December 2, 2003 SAP approval letter date: December 10, 2003 Sampling date(s): November 5, 2004 Sediment data characterization report submittal date: December 20, 2004 DAIS Tracking Number LIPDS-1-A-O-205 Recency Determination Date: High (2 years) December The Sampling and Analysis Plan was approved by the Agencies on December 10, 2003, and called for characterization of the sediment surface after the sand/gravel spill had been removed by barge mounted crane with upland disposal. The single sampling station occupied was relocated approximately 73 feet northwest of the location identified in the DMMP approved SAP because the material at the initial station consisted of gravel rather than native sediment. The single sampling location specified in the SAP was followed with the slight deviation mentioned previously, and quality assurance/quality control guidelines specified by the PSDDA Users Manual were generally complied with. The data gathered were deemed sufficient and acceptable for decision-making by the DMMP agencies based on best professional judgment. 5. Table 2 provides an analysis summary of the results of the conventional and chemical analyses for the single sample of surface material compared to DMMP and SMS chemical guidelines. Chemical analysis of the single sample indicated that from a DMMP perspective there were eleven detected screening level

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3 22nd Ave W 20th Ave W 5th Ave NW 23rd Ave W Dayton Ave N Path: 0\ \00\GIS\ _FIG-1.mxd Map Revised: October 22, th Ave NW 26th Ave W 27th Pl W Whalley Pl W 26th Ave W 25th Ave W 24th Ave W 24th Ave NW Patten Pl W 23rd Ave W 22nd Ave NW Shilshole Ave NW W Commodore Way Gilman Pl W Burton Pl W 25th Ave W 26th Ave W W Halladay St W Lynn St W Boston St W Crockett St W Newton St 23rd Ave W W Smith St W Plymouth St Gilman Ave W W Bertona St 22nd Ave W W Barrett St 21st Ave W 20th Ave NW W Emerson Pl NW 61st St NW 60th St Barnes Ave NW 17th Ave NW Ballard Ave NW 16th Ave W 16th Ave W Thorndyke Ave W 15th Ave W W Armory Way Lambert Conformal Conic Washington State Plane North North American Datum st Ave W NW 57th St 15th Ave NW NW 62nd St NW 49th St W Wheeler St NW 46th St 14th Ave W NW 58th St 14th Ave NW Leary Way NW NW Ballard Way SITE Gilman Dr W 13th Ave W W Dravus St 13th Ave W W Howe St Prosch Ave W 11th Ave W NW 54th St 11th Ave NW W Ewing Pl 12th Ave W 12th Ave W 9th Ave W NW 56th St W Nickerson St W Emerson St 10th Ave W W Armour St Westview Dr W W Fulton St NW 59th St 9th Ave NW W Etruria St W Newell St 8th Ave W W Howe St 7th Ave W W Blaine St 8th Ave NW NW 49th St 6th Ave W 7th Ave NW NW 43rd St W Barrett St 5th Ave W 6th Ave NW 5th Ave NW NW 52nd St NW 51st St NW 50th St NW 48th St NW 47th St NW 45th St NW 42nd St W Ewing St W Bertona St 4th Ave W 4th Ave NW NW 53rd St NW Bright St NW Fern Pl W Argand St NW 62nd St NW Market St NW 44th St 3rd Ave W 4th Ave NW 3rd Ave NW W Newell St W Halladay St NW 55th St 2nd Ave W NW Market St Baker Ave NW 1st Ave W 2nd Ave NW 1st Ave NW Queen Anne Ave N 1st Ave NW NW 41st St NW 41st St NW 40th St NW 40th St W Dravus St W Halladay St W Crockett St 3rd Ave NW W Fulton St W Armour St Data Sources: Interstates, state routes, and roads from TIGER County boundaries, cities, and waterbodies from Department of Ecology. All locations are approximate. 10th Ave W 0 2,000 1,000 Feet Note: This drawing is for informational purposes. It is intended to assist in showing features discussed in an attached document. NW 39th St Palatine Ave N Greenwood Ave N Phinney Ave N Palatine Ave N W Cremona St W Dravus St W Florentia St W Smith St 2nd Ave NW N 59th St N Market St 1st Ave N N 36th St Warren Ave N Phinney Ave N N Bowdoin Pl Nickerson St Etruria St W Fulton St N 58th St N Canal St Newell St W Howe St Armour St Raye St Smith St Blaine St Florentia St 2nd Ave N Francis Ave N McGraw St Lynn St Boston St N 60th St Fremont Ave N N 39th St Fulton St 3rd Ave N Evanston Ave N Crockett St Howe St Hayes St N 62nd St N 61st St Evanston Ave N N 43rd St Blaine St N 59th St N 44th St Fremont Brg 4th Ave N Newton St Linden Ave N N 42nd St Linden Ave N Halladay St Wheeler St 305 N 41st St 5th Ave N Green Lake Way N Aurora Ave N Kitsap County N Motor Pl N 40th St Whitman Ave N Albion Pl N Dexter Ave N N 48th St N 45th St Midvale Ave N Burke Gilman Trl Aurora Brg Queen Anne Dr Smith St McGraw St It is unlawful to copy or reproduce all or any part thereof, whether for personal use or resale, without permission. Dayton Ave N Lynn St Taylor Ave N N 43rd St 6th Ave N Aurora Ave N W Green Lake Way N Stone Way N N 50th St N 49th St N Allen Pl N 44th St N 38th St Westlake Ave N Crockett St Green Lake 8th Ave N N 47th St N 46th St Interlake Ave N N 42nd St Ashworth Ave N Carr Pl N Woodlawn Ave N N 41st St 5 N 55th St Densmore Ave N N Northlake Pl N 54th St Wallingford Ave N N 43rd St Burke Ave N N 35th St N 34th St King County Woodlawn Ave N E Green Lake Way N N Northlake Pl N 53rd St N 52nd St 90 N 57th St McKinley Pl N N 44th St Wallingford Ave N N 51st St Meridian Ave N N 42nd St Bagley Ave N N 37th St Union, Lake 405 N 61st St Keystone Pl N N 63rd St N 62nd St N 59th St N Pacific St N 60th St Kirkwood Pl N N 46th St Corliss Ave N N 38th St Sunnyside Ave N N Northlake Way Fairview Ave E Office: TAC VICINITY MAP FIGURE 1

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5 Table 2. Lakeside Industires Post-Dredge Surface Sediment Quality DMMP/SMS Comarison Summary DMMU ID: SP-1 DMMP SMS mg/kg-dry wgt mg/kg-oc VQ CHEMICAL NAME Units SL BT ML Unita SQS CSL DMMP SMS Antimony u Arsenic mg/kg mg/kg u Cadmium mg/kg mg/kg Chromium mg/kg (2) 267 (2) mg/kg Copper mg/kg 390 1,027 1,300 mg/kg Lead mg/kg ,200 mg/kg Mercury mg/kg mg/kg u Nickel mg/kg mg/kg Selenium mg/kg (2) 3 (2) mg/kg u Silver mg/kg mg/kg u Zinc mg/kg 410 2,783 3,800 mg/kg TBT ion (porewater) ug/l ug/l NA Naphthalene mg/kg mg/kg-oc Acenaphthylene mg/kg mg/kg-oc Acenaphthene mg/kg mg/kg-oc Fluorene mg/kg mg/kg-oc Phenanthrene mg/kg mg/kg-oc Anthracene mg/kg mg/kg-oc 220 1, Methylnapthalene mg/kg mg/kg-oc Total LPAH mg/kg mg/kg-oc ,458 Fluoranthene mg/kg mg/kg-oc 1,000 1, E Pyrene mg/kg mg/kg-oc 1,000 1, Benzo(a)anthracene mg/kg mg/kg-oc Chrysene mg/kg mg/kg-oc Benzo(k)fluoranthenes mg/kg mg/kg/oc Benzofluoranthenes (b+k) ug/kg mg/kg-oc Benzo(a)pyrene ug/kg mg/kg-oc Indeno(1,2,3-cd)pyrene mg/kg mg/kg-oc Dibenzo(a,h)anthracene mg/kg mg/kg-oc Benzo(g,h,I)perylene mg/kg mg/kg-oc NA Total HPAH mg/kg mg/kg-oc 960 5, ,618 1,3-Dichlorobenzene mg/kg 0.17 mg/kg-oc u 1,4-Dichlorobenzene mg/kg mg/kg-oc u 1,2-Dichlorobenzene mg/kg mg/kg-oc u 1,2,4-Trichlorobenzene mg/kg mg/kg-oc u Hexachlorobenzne (HCB) mg/kg mg/kg-oc u Dimethylphthalate mg/kg 1.4 mg/kg-oc u Diethylphthalate mg/kg 1.2 mg/kg-oc u Di-n-butylphthalate mg/kg 5.1 mg/kg-oc 220 1, u Butylbenzylphthalate mg/kg 0.97 mg/kg-oc u Bis(2-ethylhexyl)phthalate mg/kg 8.3 mg/kg-oc Di-n-octylphthalate mg/kg 6.2 mg/kg-oc 58 4, u Phenol mg/kg mg/kg u 2-Methylphenol mg/kg mg/kg u 4-Methylphenol mg/kg mg/kg u 2,4-Dimethylphenol mg/kg mg/kg u Pentachlorophenol mg/kg mg/kg u Benzyl alcohol mg/kg mg/kg u Benzoic acid mg/kg mg/kg u Dibenzofuran mg/kg mg/kg-oc Hexachloroethane mg/kg mg/kg-oc Hexachlorobutadiene mg/kg mg/kg-oc u N-Nitrosodiphenylamine mg/kg mg/kg-oc u Trichloroethene mg/kg ug/kg Tetrachloroethene mg/kg ug/kg Ethylbenzene mg/kg ug/kg Total Zylene (sum of o-,m-,p-) mg/kg ug/kg Total DDT (sum of 4,4'-DDD, 4,4'-DDE and 4,4'-DDT) mg/kg mg/kg-oc u Aldrin mg/kg mg/kg-oc u Chlordane mg/kg mg/kg-oc y Dieldrin mg/kg mg/kg-oc u Heptachlor mg/kg mg/kg-oc u Alpha-BHC mg/kg mg/kg-oc Gamma-BHC (Lindane) mg/kg mg/kg-oc u Total PCBs mg/kg *** 3.1 mg/kg-oc u Total Solids % 80.0 Total Volatile Solids % 2.0 Total Organic Carbon % 0.6 Total Ammonia mg/kg 3.6 Total Sulfides mg/kg 2.4 Gravel % 38.0 Sand % 55.2 Silt % 6.2 Clay % 0.6 Fines (percent silt + clay) % 6.8 Bioassay Determination: (P/F) NA BTs eyesceeded: yes Bioaccumulation conducted: no ML Rule exceeded: no PSDDA Determination: F(B) FAIL (CSL) DMMU Volume: cy NA Rank High Mean Core sampling depth ft 10 cm Maximum sampling depth (mudline) 10 cm DMMU ID: SP-1 Legend: SL = Screening Level exceedance VQ = Validation Qualifier BT = Bioaccumulation Trigger exceedance UCOWD = Unconfined open-water disposal P = Pass (Suitable for UCOWD) U = undetected at the reported concentration F(B) = Failure (UCOWD Unsuitable wo biological testing) E = positively ID'd, estimated concentration SQS = Sediment Quality Standards exceedance (SMS) CSL = Cleanup Screening Level exceedance (SMS)

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