Contaminated Marine Sediments Assessment and Remediation (1989) / Chapter Skim
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St. Paul Waterway Remedial Action and Habitat Restoration Project
St. Paul Waterway Remedial Action and Habitat Restoration Project
Pages 440-461
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From page 440... ...
Paul Waterway Area Remedial Action and Habitat Restoration Project consists of environmental improvement actions to remedy past and present practices to protect Commencement Bay and Puget Sound Water quality and restore fish and wildlife habitat. The project will correct sediment contamination by permanently capping this shallow area with clean Puyallup River sediments; initiating chemical source control through raw material and process changes; installing a new secondary treatment plant outfall; collecting and providing secondary treatment for stormwater; containing wood chip spillage; and creating substantial new intertidal habitat for bird and marine lifer The studies resulting in this action concluded that the project would create few adverse impacts and provide greater environmental benefits than other remedial action alternatives, such as dredging contaminated sediments, then landfilling or incinerating them.
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From page 441... ...
has designated Commencement Bay's entire nearshore tideflats as a Superfund site on the National Priority List (Figure 4~. The nearshore log pond area near the mill was included in the site based on results from the Commencement Bay studies conducted by Tetra Tech, Inc.
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From page 443... ...
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From page 445... ...
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From page 446... ...
remedial action for contaminated sediments and habitat restoration, 3. source control by stormwater collection and treatment, chip containment, and an ongoing chemical source control program, and 4.
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From page 447... ...
447 o fir I!
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From page 448... ...
Paul Waterway, resulting from spillage of wood chips from the chip unloading facility. As noted above, the contaminated sediments were brought to public attention through the Superfund designation of Commencement Bay and the subsequent Nearshore/Tideflats Remedial Investigation prepared by Tetra Tech under the direction of WDOE and EPA.
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From page 449... ...
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From page 450... ...
The shallow water also offers an opportunity to restore intertidal habitat. The proposed action will, without disturbing the contaminated sediments, cover them with a cap of clean Puyallup River sediment.
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From page 452... ...
_ HER r' ki @ 10 , \ ~ 11 ~ ' ~ K`" HILL I: __ BRIO ~H 3-E . ~ ~ ~M 0 ~ e ~ FIGURE 8 P-Cresol concentrat10n in sediments adjacent to the Tacoma Kraft mill (amphipod AET# 1~200 ~g/kg; benthic AET' 670 ~g/kg)
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From page 453... ...
~LE IN fEE~ ~ ~ GRID ~A 0 100 ~ 2a) FIGURE 9 P-Cymene concentration in sediments adjacent to the Tacoma Kraft mil1 (amphipod AET, undetermined)
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From page 454... ...
..& FLU · Al TACOMA _' KRAFT MILL 4 5 7 9 10 J 11 N—: ~h~r~r (—tom C~re) ~d on Nban Lower Low W~er (MLIW)
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From page 455... ...
MALE IN FEET , , ~ ~ GRID AH O 100 200 FIGURE 11 Phenol concentration in sediments adjacent to the Tacoma Kraft mill (amphipod AFT, 670 ~g/kg)
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From page 456... ...
~ 1 9 S 7 10 J 11 N - : ~~) ~ on Nban Law Lop Wed BALM SCALE IN FEET ~ RUE U NORM 0 100 200 '~ FIGURE 12 Nap thalene concentration in sediments adjacent to the Tacoma Kraft mill (amphipod AET, 29400 ~g/kg)
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From page 457... ...
.' N - : ~~ (Mom at) on ~ Law ~ ~ BUM MALE ~ FEET ~ ~ ~ GRID a O 100 200 FlGURE 13 Low-molecular -weight polyaromatic hydrocarbons concentration in sediments adjacent to the Tacoma Kraft mill (amphipod AET, 5,500 g~g)
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From page 458... ...
on Mean Lower Low Water (MEW SCALE IN FEET ~ ~tRUE ~~ AH O 100 200 ~ FIGURE 14 Total volatile solids (percent isopleths) observed in surface sediments adjacent to Tacoma Kraft mill.
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From page 459... ...
Ongoing measures that have significant source control benefits include replacing the 1937 vintage bleach plant with a new plant which, employing chlorine dioxide substitution for chlorine, state-of-the-art mixers at each bleaching stage, and scrubbers for air emissions, will effect an estimated 50 percent further reduction in chloroform emissions and reduce the total organically bound chlorine emissions to well below standards recently established for Swedish bleached kraft mills. The source control program has removed well over a million pounds of pollutants from the facility on an annual basis.
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From page 460... ...
VERTICAL EXAGGERATION ~ 5 Habitat Enhancement Profile 460 an, - -I - o -- 10 600 550 500 450 VERTICAL EXAGGERATION x 5 Aft \\1 ~ 400 350 300 250 200 150 100 50 0 Benn/Cap Layer Profile — _' -o ~ - ~ ~ NO VERTICAL EXAGGERATION Habitat Enhancement Elevation Cap Surface E - at on Organic Fill Elevation Existing Ebvatlon Final P - lo FIGURE 15 Typical profiles of perm and cap layers and final profile without vertical exaggeration. habitat enhancement
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From page 461... ...
~ ~ ~ ^ ~ ~-~ be to establish the biologiThe principal monitor~ng before construction will Cal and chemical baselines. Several types of construction monitoring will occur, including establishing sediment elevations, verifying proper sediment cover placement, and monitoring water quality to measure impacts occurring due to the remedial activities.
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