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LU20-0107
Determination of Significance, Request for Comments on Scope of EIS, and Notice of Public Scoping Meeting Proponent: Project Name: Location of Proposal: SEPA Lead Agency: SeaPort Sound Terminal, LLC (SeaPort Sound) LU20-0107 SeaPort Sound Terminal Modernization 2638 Marine View Drive, Parcel 0321264046 City of Tacoma, File no. LU20-0107 Project Description: SeaPort Sound Terminal, LLC (SeaPort Sound) is proposing to demolish existing refinery equipment and replace it with new storage tanks and appurtenances at the SeaPort Sound Terminal located on the Hylebos Waterway at 2628 Marine View Drive in Tacoma, Washington (see attached Sheet 1). The SeaPort Sound Plant Modernization Project (Project) includes demolition of existing refinery equipment, installation of new storage tanks and containment system, as well as wastewater and stormwater improvements. The current storage capacity in the refinery area is approximately 15,000 barrels; the new tanks would have a capacity of about 181,000 barrels. While additional bulk fuels will be stored on site, the applicant is not seeking an increase in overall throughput for the facility. The purpose of the Project is to replace aging refinery infrastructure with new storage tanks, piping, and associated equipment, and safety and environmental protection measures, including upgraded wastewater treatment systems to meet functional, operational, and environmental needs at the terminal. EIS Required, Determination of Significance: Using the Optional DNS Process of WAC 197-11-355, the City of Tacoma, acting as SEPA Lead Agency, issued a preliminary determination of nonsignificance with the notice of application for the Shoreline Substantial Development Permit. The City notified the public that a Mitigated Determination of Nonsignficance was anticipated and invited public comment. Based on public comment, and on the provisions of WAC 197-11-340, the SEPA Responsible Official is withdrawing that preliminary determination and issuing a Determination of Significance. Using the threshold determination process in WAC197-11-330 the lead agency has determined this proposal is likely to have a significant adverse impact on the environment. An environmental impact statement (EIS) is required under RCW 43.21C.030 (2)(c) and will be prepared. This determination is based upon the unknown and probable significant adverse impacts from the increased storage of fossil fuels in a location that is proximate to human habitation, that is adjacent to sensitive critical habitat, and that is subject to liquefaction and other seismic risks. An environmental checklist and other materials indicating likely environmental impacts can be reviewed by visiting https://aca.accela.com/tacoma/Default.aspx and entering the permit number LU20-0107 in the search field. Documents are located under the "record info" tab. The lead agency has identified the following areas for discussion in the EIS: emergency response, risks to public safety, intelligent transportation systems for emergency access, spill prevention and response, and air quality - to include the life cycle greenhouse gas emissions from the additional products to be stored on the site. Scoping: In addition to the foregoing topics, agencies, affected tribes, and members of the public are invited to comment on the scope of this proposed EIS. You may comment on alternatives, proposed mitigation measures, probable significant adverse impacts, permits, licenses, and/or other approvals that may be required. The City will use the scoping comments, as well as comments on the preliminary SEPA determination, to define the topics to be examined closely in the project EIS. Methods for presenting comments are described below. All comments are due no later than 5:00 p.m. on February 25, 2021. The scoping period begins February 4 and ends February 25, 2021. An EIS public scoping meeting is scheduled to begin at 6:00 p.m. on February 18, 2021, via Zoom. The purpose of the public scoping meeting is to provide information about the proposed project and to provide an opportunity to comment on the scope of the proposed EIS. Written comments will be accepted at this meeting, which will be entered into the proposal's environmental review record as scoping comments. If you have already provided comments on the project, they do not need to be repeated. For meeting information and submittal of written comments: Questions about the scoping meeting and written comments may be submitted via mail or email to Shirley Schultz shirley.schultz@citvoftacoma.org 1 253-345-0879 Responsible Official: I Peter Huffman, Director, n g.and Development Services 747 Market Street, 41" Floor Tacoma, WA 98402 You may appeal this final determination. Appeals are due no later than the close of business February 18, 2021. An appeal to the Hearing Examiner is initiated by filing a Notice of Appeal accompanied by the required filing fee of $1,040.00. Filing of the appeal shall not be complete until both the Notice of Appeal and required filing fee are received. THE FEE SHALL BE REFUNDED TO THE APPELLANT SHOULD THE APPELLANT PREVAIL. (Pursuant to Section 2.09.020 of the Tacoma Municipal Code, fees for appeals shall be waived for qualifying senior citizens and persons who are permanently handicapped who are eligible for tax exemption because of financial status.) The Notice of Appeal must be submitted in writing, electronically, to hearing.examiner@cityoftacoma.org. The filing fee will be coordinated with the appellant. Questions regarding the filing of an appeal may be directed to the Hearing Examiner at that email address or by phone at (253) 591-5195. You should be prepared to make specific factual objections. Issue Date: February 4. 2021 Publication Tacoma Daily Index: February 4, 2021 and February 11, 2021. SEPA ENVIRONMENTAL CHECKLIST A. Background 1. Name of proposed project, if applicable: SeaPort Sound Plant Modernization Project 2. Name of applicant: SeaPort Sound Terminal, LLC (SeaPort Sound) 3. Address and phone number of applicant and contact person: Applicant Troy Goodman, SeaPort Sound 4130 East 11th Street Tacoma, Washington 98421 (253) 272-9348 tgoodman@transmontaigne.com Contact Josh Jensen, Anchor QEA, LLC 1201 3rd Avenue, Suite 2600 Seattle, Washington 98101 (206) 903-3374 jjensen@anchorqea.com 4. Date checklist prepared: May 21, 2020 S. Agency requesting checklist: City of Tacoma 6. Proposed timing or schedule (including phasing, if applicable): Demolition and construction are expected to begin in early 2021 and are anticipated to take 1 to 2 years to complete. SEPA Environmental checklist (WAC 197-11-960) Page 1 of 23 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. At this time, there are no plans for future additions, expansion, or further activity related to or connected with this proposal. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Environmental information that has been or will be prepared directly related to this proposal includes the following: • Project Description • Joint Aquatic Resources Permit Application (DARPA) • Shoreline Substantial Development Permit (SSDP) Application 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. The contact water collection and treatment system replacement was originally planned to be constructed as a separate project from the refinery demolition. The City of Tacoma issued a SSDP exemption (LU17-0038) for this project on May 18, 2017. However, that project was delayed and is now being combined with the refinery demolition elements. The design of the contact water system replacement has not changed since the SSDP exemption was granted in 2017. There are no other applications currently pending government approval directly affecting the property covered by the Project. 10. List any government approvals or permits that will be needed for your proposal, if known. The following are approvals and permits needed for the proposed Project: • City of Tacoma: SEPA determination • City of Tacoma: SSDP SEPA Environmental checklist (WAC 197-11-960) Page 2 of 23 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead agencies may modify this form to include additional specific information on project description.) The Project includes demolition and construction activities that will occur within the 200-foot shoreline environment of Hylebos Waterway, and a portion of the work will occur within the 50-foot marine buffer. All activities will be completed within existing developed areas that are actively used to support the existing industrial property use. The Project includes the following elements: Demolishing existing refinery equipment including pumps and electrical systems, a boiler and building, seven storage tanks, piping, and a containment berm. • Installing eight new storage tanks, two new process water tanks, and piping within a 4-foot-high concrete containment wall around the new storage tank area. • Demolishing and removing the existing wastewater treatment equipment, including replacing the oil -water separator (specifically, a coalescing plate separator with containment). Removing a rotating biological disk, water clarifying unit, and induced aeration basin. Repairing wastewater treatment system equipment as practicable (i.e., surge pond, aeration pump). • Filling and abandoning in place the existing blocked storm line on the east side of the property and diverting stormwater through a realigned pipe to be constructed parallel to the existing pipe that will discharge through the existing outfall. The existing outfall will be retained; no outfall modifications are proposed. • Installing new manholes along the new stormwater pipe. Full Project details can be found in Attachment 1, Project Description and Plan Set. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. SEPA Environmental checklist (WAC 197-11-960) Page 3 of 23 The Project is located at 2628 Marine View Drive in Tacoma, Washington. The area is located within Section 26, Township 21 North, Range 3 East, at latitude 47.27687, longitude-122.38560. The parcel number is 0321264046. A SEPA Plan Set attached to this checklist includes a location map and other detailed plans showing the project vicinity and topography. The parcel legal description is as follows: Section 26 Township 21 Range 03 Quarter 42 : BEG AT INTER OF A LI PAR/W & 658.5 FT W OF E LI GOVT LOT 3 WITH SLY LI MARINE VIEW DR TH NWLY ALG SD SLY LI TO INTER A LI PAR/W & 1008.5 FT W OF E LI SD LOT TH SLY ON SD LI TO A PT 610 FT N OF S LI B 5 ASHTONS RPT TH W 200 FT TH S TO S LI B 5 ASHTON RPT TH SELY ON SLY LI SD B 5 ASHTONS RPT & SLY LI GOVT LOT 12 TO INTER A LI EXT S 658.5 FT W OF E LI GOVT LOT 3 TH N ON SD LI TO BEG EXC POR LOT 12 WITHIN HYLEBOS WATERWAY SEG E 9263 DC2/9/01JU B. Environmental Elements 1. Ea rth a. General description of the site: The Project site is entirely flat. (circle one) Flat, rolling, hilly, steep slopes, mountainous, other: b. What is the steepest slope on the site (approximate percent slope)? The site is flat (approximately 1 % to 2% slopes). c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any agricultural land of long-term commercial significance and whether the proposal results in removing any of these soils. The Project property consists of imported fill and gravel materials. There are no agricultural soils or agricultural land of long-term significance on or near the Project property. The Project property is not mapped by the Natural Resources Conservation Service web soil survey (USDA 2020) because the area is on 10 to 20 feet of historically placed fill above what were once the open waters of Commencement Bay (Hudson and White 2006; Patterson 2015). SEPA Environmental checklist (WAC 197-11-960) Page 4 of 23 d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. The site is identified as an area of high liquefaction susceptibility (City of Tacoma 2020). e. Describe the purpose, type, total area, and approximate quantities and total affected area of any filling, excavation, and grading proposed. Indicate source of fill. The Project includes upland excavation and filling activities within both the 200-foot shoreland area and the 50-foot marine buffer as part of demolition of existing structures, grading to prepare the site for construction, and trenching associated with the stormwater line and shared containment culvert between storage tank areas. Excavated materials will be reused on site to the extent practicable or disposed of at an approved off -site disposal facility. All material imported to the site will be clean and sourced from an approved off -site vendor. The total amount of fill for the Project is 9,181 cubic yards (cy), which includes the following: • Amount of fill outside of 50-foot marine buffer: Approximately 8,901 cy over 60,850 square feet • Amount of fill within 50-foot marine buffer: Approximately 280 cy over 450 square feet The total amount of excavation for the project is 9,382 cy, which includes the following: • Amount of cut outside of 50-foot marine buffer: Approximately 9,330 cy over 60,700 square feet Amount of cut within the 50-foot marine buffer: Approximately 52 cy over 200 square feet f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Clearing and grading activities have the potential to cause erosion; however, all areas disturbed by Project construction will be stabilized as soon as possible to prevent erosion. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? The property is currently developed and covered by impervious, compacted gravel fill and paved surfaces. The Project will result in a net decrease of 400 square feet of impervious surfaces on the property compared to existing conditions. SEPA Environmental checklist (WAC 197-11-960) Page 5 of 23 h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: All areas disturbed by Project construction will be stabilized as soon as possible to prevent erosion, and erosion control measures will also be implemented during construction as shown in the Temporary Erosion and Sediment Control Plan to be prepared for the Project. 2. Air a. What types of emissions to the air would result from the proposal during construction, operation, and maintenance when the project is completed? If any, generally describe and give approximate quantities if known. Construction equipment will emit minor exhaust fumes during construction of the Project. The new Project elements could lead to a change in air emissions. b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. There are no off -site sources of emissions or odor that may affect the Project. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Sea Port Sound will comply with air emissions standards and obtain any necessary permits. 3. Water a. Surface Water 1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. The Project is located adjacent to the Hylebos Waterway which flows into Commencement Bay, then Puget Sound. No wetlands are present on the Project property. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. The Project includes work within the Hylebos Waterway 200-foot shoreland area designated as S-10 Port Industrial, High -Intensity per the City of Tacoma Shoreline Master Program (City of Tacoma 2013). A small portion of the work will also occur within the 50-foot marine buffer, including the replacement of flow and pH meters, trenching in SEPA Environmental checklist (WAC 197-11-960) Page 6 of 23 the stormwater pipeline relocation area, and the installation of new manholes for the storm drain alignment. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. No fill or dredge material will be placed in or removed from surface waters or wetlands. See Section B.1 for fill quantities that will be placed within the 200-foot shoreland area and the 50-foot marine buffer. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. The Project will not require any surface water withdrawals or diversions. 5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan. The Project does not lie within the 100-year floodplain and is protected by an existing berm located along the shoreline. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. The Project will not involve any discharges of waste materials to surface waters. b. Ground Water 1) Will groundwater be withdrawn from a well for drinking water or other purposes? If so, give a general description of the well, proposed uses and approximate quantities withdrawn from the well. Will water be discharged to groundwater? Give general description, purpose, and approximate quantities if known. No groundwater will be withdrawn from a well for drinking water or other purposes. SEPA Environmental checklist (WAC 197-11-960) Page 7 of 23 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: domestic sewage; industrial, containing the following chemicals... ; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. No waste materials will be discharged into the ground from septic tanks or other sources. c. Water Runoff (Including Stormwater) 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. The Project includes filling and abandoning in place the existing blocked storm line on the east side of the property and diverting stormwater through a realigned pipe to be constructed parallel to the existing pipe that will discharge through the existing outfall. New manholes will be installed along the new pipeline alignment. 2) Could waste materials enter ground or surface waters? If so, generally describe. It is unlikely that waste materials will enter ground or surface waters from construction equipment at the Project property or from the completed Project. 3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so, describe. Off -site drainage that flows to the existing storm line may drain better after construction, because the existing storm line is blocked. On -site drainage will continue to be managed as part of the Stormwater Pollution Prevention Plan maintained by SeaPort Sound Terminal. d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage pattern impacts, if any: Best management practices (BMPs) will be implemented to avoid or minimize impacts to nearby surface waters during construction, as described in the Project Description and plan set in Attachment 1. SEPA Environmental checklist (WAC 197-11-960) Page 8 of 23 4. Plants a. Check the types of vegetation found on the site: ❑ deciduous tree: alder, maple, aspen, other ❑ evergreen tree: fir, cedar, pine, other ❑ shrubs ❑ grass ❑ pasture ❑ crop or grain ❑ Orchards, vineyards or other permanent crops. ❑ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other ❑ water plants: water lily, eelgrass, milfoil, other ❑ other types of vegetation The Project is located in a heavily used industrial site and vegetation is limited to patches of weedy grass and herbaceous vegetation in disturbed areas with gravel surfaces. No native, undisturbed vegetation communities are located within the Project area. b. What kind and amount of vegetation will be removed or altered? No vegetation will be removed or altered as a result of the Project. c. List threatened and endangered species known to be on or near the site. There are no known Endangered Species Act (ESA) -listed plant species at or near the Project property, and listed plant species are not likely to be present due to lack of suitable habitat (USFWS 2020b). d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: The Project does not include any proposed landscaping, use of native plants, or other measures for vegetation preservation or enhancement at the property. e. List all noxious weeds and invasive species known to be on or near the site. There are no known noxious weeds or invasive species on or near the site. SEPA Environmental checklist (WAC 197-11-960) Page 9 of 23 5. Animals a. List any birds and other animals which have been observed on or near the site or are known to be on or near the site. Examples include the following: Birds: hawk, heron, eagle, songbirds, other Mammals: deer, bear, elk, beaver, other Fish: bass, salmon, trout, herring, shellfish, other ESA -listed species that may occur in the vicinity of the Project are described in Section B.S.b. The Washington Department of Fish and Wildlife Priority Habitats and Species map identifies the following species and habitats adjacent to, but outside of, the Project area (WDFW 2020): • Chinook salmon (Oncorhynchus tshawytscha) • Sockeye salmon (O. nerka) • Fall chum salmon (O. keta) • Pink salmon (O. gorbuscho) • Steelhead (O. mykiss) • Bull trout (Saiveiinus maima) • Dungeness crab (Cancer magister) • Pigeon guillemot (Cepphus coiumba) • Estuarine and Marine Wetland • Biodiversity Areas and Corridor b. List any threatened and endangered species known to be on or near the site. The following ESA -listed species may occur in the project area: • Chinook salmon • Steelhead • Bull trout • Bocaccio (Sebastes paucispinus) • Green sturgeon (Acipenser medirostris) • Pacific eulachon (Thaieichthys pacificus) • Yelloweye rockfish (Sebastes ruberrimus) • Killer whale (Orcinus orca) • Humpback whale (Megapterus novaeongiiae) • Leatherback sea turtle (Dermocheiys coriacea) • Marbled murrelet (Brachyromphus marmoratus) SEPA Environmental checklist (WAC 197-11-960) Page 10 of 23 The U.S. Fish and Wildlife Service identifies North American wolverine (Gulo gulo luscus), gray wolf (Canis lupus), streaked horned lark (Eremophila alpestris strigata), and yellow -billed cuckoo (Coccyzus americanus) as potentially affected by activities in the action area (USFWS 2020b). However, suitable habitat for these species is not present within and adjacent to the Project area, and these species are not presumed to be near the site. c. Is the site part of a migration route? If so, explain. Yes, the Project area is located within the Pacific Flyway for waterfowl and other migratory birds. The Puyallup River (south of the Project area) is a migration route for salmonids. d. Proposed measures to preserve or enhance wildlife, if any: BMPs will be implemented to avoid or minimize potential impacts to wildlife as described in the Project Description (Attachment 1). e. List any invasive animal species known to be on or near the site. There are no invasive animal species known to be on or near the site. 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. The completed Project will use electricity to light the area, but no new energy needs will be required for the Project. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. The Project will not affect the potential use of solar energy by adjacent properties. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: The Project is expected to have a negligible effect on energy consumption; therefore, no energy conservation features are proposed. SEPA Environmental checklist (WAC 197-11-960) Page 11 of 23 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. The Project includes installing new bulk fuel storage tanks, which will be used to store petroleum and renewable fuels products. These products would not be present during construction of the Project. However, during operation, fuels would be handled using equipment designed for safe transfer, storage, and processing. In addition, the contractor will be responsible for the preparation of a Spill Prevention, Control, and Countermeasures Plan to be used for the duration of the Project to safeguard against unintentional spills of fuel, lubricants, or hydraulic fluid from construction equipment. 1) Describe any known or possible contamination at the site from present or past uses. In 2019, a comprehensive field examination of the refinery process area was completed for the purposes of demolition. The resulting survey identified 15 areas where samples were found to contain greater than 1 % asbestos. After the field examination was completed, Construction Group International was contracted to remove all areas of asbestos identified by the survey. This work was completed in December 2019. Asbestos -containing gasket materials maintained between flanged connections were left in place for removal during demolition. Boiler deaerator tank testing at the same time found asbestos in the insulation. If the deaerator tank is removed during the Project, the asbestos insulation will be removed. The Property is located within the footprint of the area know as the Asarco Plume. Properties within the plume are known to contain contaminants associated with the operation of the former Asarco smelter located approximately 5 miles to the west of the Project site. Soils taken off -site will be tested and disposed of appropriately. There are no active underground petroleum pipelines associated with the refinery. Any abandoned underground pipelines or utilities will be removed from the refinery process area. SEPA Environmental checklist (WAC 197-11-960) Page 12 of 23 2) Describe existing hazardous chemicals/conditions that might affect project development and design. This includes underground hazardous liquid and gas transmission pipelines located within the project area and in the vicinity. No underground gas transmission pipelines are located in this area. Underground pipelines that are currently used to transfer petroleum and renewable fuel products to existing tanks on the site via underground pipelines from the Taylor Way properties will not be affected by this work. 3) Describe any toxic or hazardous chemicals that might be stored, used, or produced during the project's development or construction, or at any time during the operating life of the project. No toxic or hazardous chemicals will be stored, used, or produced as part of the Project. 4) Describe special emergency services that might be required. No special emergency services are expected to be required. 5) Proposed measures to reduce or control environmental health hazards, if any: Construction of the new storage tanks will include installing a new reinforced concrete circular footing for each tank. A bentonite liner and sand layer will be placed inside the circular footing to seal any exposed soil underneath the tanks. The tanks will be constructed within an area contained by a 4-foot-high concrete wall meeting secondary containment requirements (per Code of Federal Regulations Title 40 Part 112 and Washington Administrative Code 173-180-320). BMPs, including a Spill Prevention, Control, and Countermeasures Plan, will also be employed as part of the Project to reduce potential environmental hazards. During operation of the Project, safe handling of materials and spill response procedures will be followed according to Sea Port Sound's policies. Operators are trained in proper material handling and emergency response procedures. See the Project Description in Attachment 1 for additional details. SEPA Environmental checklist (WAC 197-11-960) Page 13 of 23 b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? The Project will occur within an active industrial facility, with noise levels that are typical of an industrial setting. The noise of the surrounding environment will not affect the Project. 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Short-term increases in noise may occur from construction activities. Long-term noise levels at the Project property will remain similar to existing levels after Project completion. 3) Proposed measures to reduce or control noise impacts, if any: Construction will occur during times allowed by the City of Tacoma's noise ordinance in Tacoma Municipal Code JMQ Title 8. 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? Will the proposal affect current land uses on nearby or adjacent properties? If so, describe. The site is currently used by SeaPort Sound for bulk liquid storage of petroleum, petroleum products, and renewable fuels. These products are transferred between the Project site on the north side of the Hylebos Waterway and the Taylor Way properties on the south side of the Hylebos Waterway through existing underground pipelines. The Project will not change these existing land uses or affect nearby or adjacent properties. b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much agricultural or forest land of long-term commercial significance will be converted to other uses as a result of the proposal, if any? If resource lands have not been designated, how many acres in farmland or forest land tax status will be converted to nonfarm or nonforest use? The Project property has not been used as working farmlands or forest lands. SEPA Environmental checklist (WAC 197-11-960) Page 14 of 23 1) Will the proposal affect or be affected by surrounding working farm or forest land normal business operations, such as oversize equipment access, the application of pesticides, tilling, and harvesting? If so, how? The Project will not affect or be affected by surrounding working farm or forest lands because these are not present in the vicinity. c. Describe any structures on the site. The existing refinery area includes a boiler and building, refinery equipment and piping, seven tanks of various sizes, and piping located within a containment berm. There is a concrete pad under the refinery equipment. Existing wastewater treatment equipment located south of the former refinery area includes a surge pond and an oil -water separator, along with a contact water drain line that connects from the truck rack and a discharge pipe that connects from the wastewater treatment equipment to the sanitary sewer. The property also contains a laboratory building, a loading terminal with 52 aboveground storage tanks, a five -lane truck loading rack, and a vessel pier. d. Will any structures be demolished? If so, what? The Project includes demolishing existing refinery equipment, a boiler and building, seven storage tanks, piping, and a containment berm. e. What is the current zoning classification of the site? The site is currently zoned as Heavy Industrial and Combined Shoreline by the City of Tacoma (City of Tacoma 2020). f. What is the current comprehensive plan designation of the site? The current comprehensive plan designation of the Project property is Heavy Industrial (City of Tacoma 2015). g. If applicable, what is the current shoreline master program designation of the site? The Shoreline Master Program designation (within 200 feet of the ordinary high water mark) is "S-10 Port Industrial, High -Intensity," which allows for "the continued development of the Port Industrial Area, with an increase in the intensity of development and a greater emphasis on terminal facilities within the City" pursuant to TMC Title 13.10, Chapter 9.12(A) (City of Tacoma 2013). All work will occur outside of the adjacent S-13 marine waters of the state shoreline district; no in -water work is proposed. SEPA Environmental checklist (WAC 197-11-960) Page 15 of 23 h. Has any part of the site been classified as a critical area by the city or county? If so, specify. The Project includes demolition and construction activities that will occur within the 200-foot shoreland area of the Hylebos Waterway. A small portion of the work will also occur within the 50-foot marine buffer, including the replacement of flow and pH meters, and new manholes for the storm drain alignment. The site is also identified as an area of high liquefaction susceptibility (City of Tacoma 2020). i. Approximately how many people would reside or work in the completed project? The Project property does not include any residential units and no people would reside in the completed Project. The completed Project will not result in additional staffing or personnel working at the Project property. j. Approximately how many people would the completed project displace? No people will be displaced by the completed Project. k. Proposed measures to avoid or reduce displacement impacts, if any: No people will be displaced by the completed Project; therefore, no measures to avoid or minimize displacement impacts are proposed. I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: The Project will result in continued use of the Project property as bulk fuel storage facility, which is compatible with current and projected land uses and plans. m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term commercial significance, if any: No working farm or forest lands of long-term commercial significance are present within the vicinity of the Project; therefore, no measures to reduce or control impacts are proposed. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. No new housing units will be provided by the Project. SEPA Environmental checklist (WAC 197-11-960) Page 16 of 23 b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. The proposed Project will not eliminate any housing units. c. Proposed measures to reduce or control housing impacts, if any: The proposed Project will not displace any housing units; therefore, no measures are proposed. 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? The tallest proposed structure is one of the new fuel storage tanks, which is expected to be 60 feet tall. b. What views in the immediate vicinity would be altered or obstructed? The Project will be constructed in an area that serves industrial uses. Views in the immediate vicinity will not be altered from existing uses and operations at the Project property. c. Proposed measures to reduce or control aesthetic impacts, if any: The proposed Project is consistent with surrounding land uses and would not have aesthetic impacts; therefore, no measures are proposed to reduce or control aesthetic impacts. 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? The Project would include lighting commensurate with what is currently on site. Construction activities would mainly occur during daytime hours. b. Could light or glare from the finished project be a safety hazard or interfere with views? Light and glare from the Project would not be a safety hazard or interfere with views. c. What existing off -site sources of light or glare may affect your proposal? No existing sources of off -site light or glare will affect the Project. SEPA Environmental checklist (WAC 197-11-960) Page 17 of 23 d. Proposed measures to reduce or control light and glare impacts, if any: No measures are proposed to reduce or control light or glare impacts. 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? The shoreline along the Hylebos Waterway is developed and operated for industrial and commercial purposes, which limits recreational use. Adjacent to the Project property, the Hylebos Waterway and Commencement Bay contain active marinas where recreational vessels are moored and operated. These vessels use the waterway for transit and recreation. b. Would the proposed project displace any existing recreational uses? If so, describe. The Project does not propose any in -water work and will not displace any existing recreational uses. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: No measures are proposed to reduce or control impacts on recreation, including recreational opportunities, because no impacts would occur. 13. Historic and Cultural Preservation a. Are there any buildings, structures, or sites, located on or near the site that are over 45 years old listed in or eligible for listing in national, state, or local preservation registers? If so, specifically describe. There are no recorded buildings, structures, or sites on the property that are older than 45 years or eligible for listing in a preservation register. b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation? This may include human burials or old cemeteries. Are there any material evidence, artifacts, or areas of cultural importance on or near the site? Please list any professional studies conducted at the site to identify such resources. Prior to historic land modifications, the Project area was a tideflat in Commencement Bay. In 1919, the newly formed Port of Tacoma dredged and filled 240 acres of the bay, creating the uplands and navigable waterways. The Project site does not appear to have been filled at that time; a 1945 aerial photograph shows it as vacant though possibly at a somewhat higher elevation due to deposition of dredge spoils. On a 1964 aerial photograph, the northwestern SEPA Environmental checklist (WAC 197-11-960) Page 18 of 23 portion of the site appears low-lying and intertidal, while the southeastern portion is filled with five tanks and log stacks visible. Sound Refining has used the property as a refinery since 1967. The terminal is visible in its current location on a 1970 aerial photograph. It appears that the site was intertidal until sometime between 1945 and 1960, when filling began in the southeastern half of the site to support logging and bulk liquid storage. By 1970, the entire parcel was filled and supporting a tank farm, as it has ever since. c. Describe the methods used to assess the potential impacts to cultural and historic resources on or near the project site. Examples include consultation with tribes and the department of archeology and historic preservation, archaeological surveys, historic maps, GIS data, etc. The Project was reviewed by a qualified professional archaeologist, who reviewed historic maps, aerial photographs, and literature available at the Washington Department of Archaeology and Historic Preservation. Cultural resources surveys have been conducted on either side of the parcel. Both included archaeological monitoring of construction. To the southeast, monitoring revealed about 12 feet of fill above beach deposits (Kelly 2012). To the northwest and in a more upland area, monitoring revealed about 5 feet of fill above glacial deposits (Dellert 2013). These results, together with the parcel history, indicate that at least the upper 10 feet below the ground surface is highly likely to be fill. Given that filling occurred in a fairly short period of time in the mid -twentieth century, it is unlikely that significant historic archaeological resources would be present in the fill. d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to resources. Please include plans for the above and any permits that may be required. Ground disturbance is not expected to extend beyond 10 feet below the surface, and will likely occur in fill. An Inadvertent Discovery Plan will be prepared and followed in the event of a cultural resources discovery during construction. 14. Transportation a. Identify public streets and highways serving the site or affected geographic area and describe proposed access to the existing street system. Show on site plans, if any. The proposed Project is adjacent to Marine View Drive (State Route 509). See Attachment 1, Sheet 1 for a vicinity map of the Project site. SEPA Environmental checklist (WAC 197-11-960) Page 19 of 23 b. Is the site or affected geographic area currently served by public transit? If so, generally describe. If not, what is the approximate distance to the nearest transit stop? The Project site is not served by public transit. The nearest transit stop is approximately 1 mile away. c. How many additional parking spaces would the completed project or non -project proposal have? How many would the project or proposal eliminate? The Project will not add, alter, or eliminate parking opportunities at the Project property. d. Will the proposal require any new or improvements to existing roads, streets, pedestrian, bicycle or state transportation facilities, not including driveways? If so, generally describe (indicate whether public or private). The Project will not require new or improved roads or transportation -related infrastructure outside of the property. e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. The Project will not use water, rail, or air transportation. f. How many vehicular trips per day would be generated by the completed project or proposal? If known, indicate when peak volumes would occur and what percentage of the volume would be trucks (such as commercial and nonpassenger vehicles). What data or transportation models were used to make these estimates? The completed Project would not increase truck traffic to or from the area. g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest products on roads or streets in the area? If so, generally describe. The Project is not expected to interfere with, affect, or be affected by the movement of agricultural and forest products on roads or streets in the area. h. Proposed measures to reduce or control transportation impacts, if any: Traffic generated by the Project would be limited to what is required for construction. The Project is located in an industrial zone with existing truck traffic. Therefore, no measures are proposed to reduce or control transportation impacts. SEPA Environmental checklist (WAC 197-11-960) Page 20 of 23 15. Public Services a. Would the project result in an increased need for public services (for example: fire protection, police protection, public transit, health care, schools, other)? If so, generally describe. The Project is not anticipated to create an increased need for public services. b. Proposed measures to reduce or control direct impacts on public services, if any: The Project is not anticipated to result in impacts on public services; therefore, no measures to reduce or control impacts are proposed. 16. Utilities a. Circle utilities currently available at the site: electricit , natural gas, wate , refuse service, telephone, sanitary sewer, septic system, other: b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. Electricity and water are currently provided at the site and would continue to be provided once the Project is complete. SEPA Environmental checklist (WAC 197-11-960) Page 21 of 23 C. Signature The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature Name of Position and Agency/Organization: _5Voo f► Date Submitted: References City of Tacoma, 2013. Shoreline Master Program and Land Use Regulatory Code. Prepared by the City of Tacoma Planning and Development Services Department. October 15, 2013. City of Tacoma, 2015. "One Tacoma: Comprehensive Plan." Prepared by the City of Tacoma. Accessed March 19, 2020. Available at: http://www.cityoftacoma.org/cms/one.aspx?portalld=169&pageld=l 5801. City of Tacoma, 2020. "Development Assistance & Review Team Map." Accessed March 18, 2020. Available at: https://www.tacomapermits.org/dart-map#page content. Dellert, Jenny, 2013. Archaeological Monitoring Report for the Targa Sound Terminal Renewable Fuels Project, City of Tacoma, Pierce County, Washington. On file at the Department of Archaeology and Historic Preservation, Olympia, Washington. Kelly, Katherine, 2012. Results of Archaeological Monitoring of the Side Sewer Pipeline Project, Tacoma, Washington. On file at the Department of Archaeology and Historic Preservation, Olympia, Washington. Hudson, L., and W. White, 2006. City of Tacoma Standard Operations Procedures for Cultural/Archaeological Investigations Technical Memorandum, Simpson Tacoma Kraft Company Cogeneration Building. Report on file at the Department of Archaeology and Historic Preservation. Patterson, K., 2015. History and Ecology of Commencement Bay. Available from: http://courses.washington.edu/commbay/salmon/commencementbay.html. USDA (U.S. Department of Agriculture), 2020. "USDA Natural Resources Conservation Service Web Soil Survey." Accessed March 18, 2020. Available at: https:Hwebsoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx. USFWS (U.S. Fish and Wildlife Service), 2020a. National Wetlands Inventory Wetlands Mapper. Accessed March 18, 2020. Available at: https://www.fws.gov/wetlands/data/mapper.htm1. USFWS, 2020b. "USFWS Endangered Species." Accessed March 18, 2020. Available at: https://www.fws.gov/endangered/. WDFW (Washington Department of Fish and Wildlife), 2020. "Priority Habitats and Species Maps." Accessed March 19, 2020. Available at: http://wdfw.wa.gov/mapping[phs/. SEPA Environmental checklist (WAC 197-11-960) Page 23 of 23 Attachment 1 Project Description and Plan Set `r Y . f f" 7 R+� May 2020 SeaPort Sound Plant Modernization Project Project Description Prepared for SeaPort Sound Terminal, LLC 4130 East 11th Street Tacoma, Washington 98421 A. 011� SeaPort SOUN❑ TERMINAL. LLC Prepared by Anchor QEA, LLC 1119 Pacific Avenue, Suite 1900 Tacoma, Washington 98402 kZANCHOR QEA Introduction SeaPort Sound Terminal, LLC (Seaport Sound) is proposing to demolish existing refinery equipment and replace it with new storage tanks and appurtenances at the SeaPort Sound Terminal located on the Hylebos Waterway at 2628 Marine View Drive in Tacoma, Washington (see attached Sheet 1). The SeaPort Sound Plant Modernization Project (Project) includes demolishing the existing refinery equipment, boiler and building, storage tanks, containment berm, and piping and replacing them with a new containment wall and storage tanks. The new storage tanks will be installed within a similar footprint as the existing equipment and tanks. Existing wastewater treatment equipment located south of the refinery demolition area will be replaced, including replacing the oil -water separator used for wastewater treatment. The Project also includes installing a new stormwater line parallel to and around an existing blocked storm line on the east side of the property that discharged from Marine View Drive to the Hylebos Waterway. This storm line handles off -site stormwater that is outside of the purview of this facility's National Pollutant Discharge Elimination System (NPDES) permit. New manholes will be installed along the new alignment for access to the line. The existing outfall will remain; no outfall modifications or in -water work are proposed. The following includes the purpose and need, a description of existing conditions, and a summary of the proposed Project and best management practices (BMPs). The attached plan set includes a demolition plan and conceptual site plan. 1.1 Purpose and Need The purpose of the Project is to replace aging refinery infrastructure with new storage tanks, piping, and associated equipment, and safety and environmental protection measures, including upgraded wastewater treatment systems to meet functional, operational, and environmental needs at the terminal. The Project also includes replacing existing stormwater infrastructure that handles off -site stormwater that is outside of the purview of this facility's NPDES permit. 1.2 Existing Conditions The Project is located on the north side of the Hylebos Waterway within the upland portion of the SeaPort Sound Terminal and within the City of Tacoma industrial tideflats subarea. The Project parcel (No. 0321264046) is a SeaPort Sound -owned industrial property currently used for bulk fuels storage and transportation. The property has been used for various industrial purposes since the 1940s, including petroleum refining and storage. Adjacent industrial properties include additional SeaPort Sound Terminal storage facilities to the west and Edman Company, a logging business, and a landfill to the east. The Hylebos Waterway is an industrial waterway that borders the south side of the facility. Project Description 1 May 2020 The Project property is currently used by SeaPort Sound as a bulk fuels storage and transportation facility. The Project will not change these existing land uses. The existing refinery area includes a boiler and building, refinery equipment and piping, seven tanks of various sizes, and piping located within a containment berm. There is a concrete pad under the refinery equipment. Existing wastewater treatment equipment located south of the former refinery area includes a surge pond and an oil -water separator, along with a contact water drain line that connects from the truck rack and a discharge pipe that connects from the wastewater treatment equipment to the sanitary sewer. The Project area is currently developed and covered by impervious, compacted gravel fill and paving, including an existing concrete pad under the refinery unit. An existing storm drain that handles off - site stormwater is located on the east side of the Project area. The storm drain is currently blocked and minimally discharges to the existing outlet to the Hylebos Waterway. The existing outfall is still in good condition and will be retained as part of the Project. The property also contains a laboratory building, a loading terminal with 52 aboveground storage tanks, a five -lane truck loading rack, and a vessel pier. Project Description 2 May 2020 2 Proposed Project The proposed Project includes demolition and construction activities that will occur within the 200-foot S-10 Port Industrial Area shoreline district. A portion of the work will occur within the 50-foot marine buffer but is limited to replacing equipment and stormwater utilities within the footprint of existing development. All activities will be completed within existing developed areas that are actively used to support the existing industrial property use. No in -water work will occur as part of the Project. The Project includes the following elements: Demolishing existing refinery equipment including pumps and electrical systems, a boiler and building, seven storage tanks, piping, and a containment berm. • Installing eight new storage tanks, two new process water tanks, and piping within a 4-foot- high concrete containment wall around the new storage tank area. • Demolishing and removing the existing wastewater treatment equipment, including replacing the oil -water separator (specifically, a coalescing plate separator with containment). Removing a rotating biological disk, water clarifying unit, and induced aeration basin. • Repairing wastewater treatment system equipment as practicable (i.e., surge pond, aeration pump). • Filling and abandoning in place the existing blocked storm line on the east side of the property and diverting stormwater through a realigned pipe to be constructed parallel to the existing pipe that will discharge through the existing outfall. The existing outfall will be retained; no outfall modifications are proposed. • Installing new manholes along the new stormwater pipe. 2.1 Demolition, Relocation, and Replacement Activities The site will be prepared by installing Stormwater Pollution Prevention Plan and dust control best management practices (BMPs) prior to demolition activities. Demolition activities will include removing the existing refinery equipment, boiler, and 24-foot by 41-foot building/foundation (984 square feet), seven storage tanks of varying sizes, the 450-linear-foot earthen containment berm associated with the removed tanks (approximately 400 cubic yards), and appurtenances including various pumps, equipment, and related piping. Approximately 13,000 square feet of pavement within the demolition area will be removed. Excavation several feet below the existing grade will be required to remove approximately 100 linear feet of existing stormwater and contact water piping within the demolition area. In total, approximately 8,320 cubic yards of excavation will be required for demolition of the refinery area. New storage tanks will be constructed to replace the demolished tanks. The new tanks will range in diameter from 20 to 70 feet and will be between 35 and 60 feet tall. Construction of the new tanks Project Description 3 May 2020 will include installing a new reinforced concrete circular footing for each tank. A bentonite liner and sand layer will be placed inside the circular footing to seal any exposed soil underneath the tanks. The new tanks will be constructed within an area contained by a 4-foot-tall concrete wall meeting secondary containment requirements (per Code of Federal Regulations Title 40 Part 112 and Washington Administrative Code 173-180-320). The new containment area will be connected to the containment area to the west by a culvert for shared containment. A new contact water drain line will also be installed from the containment area to the replaced wastewater treatment system to the south. A vehicle access ramp will be located at the southwest entrance. The tanks shown on the site plan are for reference purposes and final dimensions will be determined in the future. In total, approximately 7,800 cubic yards of fill will be placed over the demolition area (approximately 5,200 cubic yards of native compacted fill and approximately 2,600 cubic yards of gravel fill). Portions of the existing contact water system will also be removed, including the existing oil -water separator and other related equipment and piping. Wastewater treatment system equipment will be repaired as practicable (i.e., surge pond, aeration pump). No soil excavation will be required for removing the existing structures and appurtenances within the contact water system area. The contact water system will be replaced with new, upgraded features, including replacing the contact water drain line and oil -water separator. Flow and pH meters will be replaced within the 50-foot marine shoreline buffer along the existing discharge pipe to the sanitary sewer. These features will be installed over the existing impervious gravel and compact fill surfaces and within the existing contact water system development footprint. Approximately 390 cubic yards of clean fill material will be used as backfill to support installation of the replaced contact water system features. Very limited vegetation is present on site, and no vegetation will be altered or removed within the Project area. The existing blocked storm drain east of the Project area will also be replaced. The existing line will be filled with controlled density fill (CDF) and abandoned in place. A realigned storm line will be installed parallel and east of the existing storm line. Approximately 702 cubic yards of excavation will be required to install the replacement line. New manholes will be installed along the new storm drain alignment, including two manholes within the 50-foot marine shoreline buffer. Approximately 631 cubic yards of clean backfill material will be required to restore the area. The realigned storm line will connect to the existing outfall to the Hylebos Waterway. No new outfalls will be constructed and no in -water work will be required to support the storm drain realignment. This realigned storm line handles stormwater that originates off site. Construction will be completed using heavy equipment that may include backhoes, excavators, mobile and stationary cranes, vactors, dump trucks, and watering trucks (for dust control if needed). Demolished materials will be removed and disposed of or recycled at an approved off -site facility. Excavated soils will be removed and disposed of at an approved off -site facility. Table 1 includes a Project Description 4 May 2020 summary of grading activities. Table 2 includes a summary of impervious surface changes within the Project area. Table 1 Grading Activities Summary Project Element Cubic Yards Square Feet Outside 50-foot Marine Buffer Within 50-foot Marine Buffer Outside 50-foot Marine Buffer Within 50-foot Marine Buffer Existing refinery, tank farm, and boiler building area Excavation at existing berm -520 0 5,500 0 Excavation at existing gravel area, concrete area, and tank farm area -7,800 0 53,000 0 Place compacted native material 5,200 0 53,000 0 Place gravel fill over clay line 2,600 0 53,000 0 Contact water system area Place clean fill in abandoned structures 156 234 150 250 Stormwater relocation area Excavation associated with trenching -650 -52 2,200 200 Fill associated with trenching 585 46 2,200 200 Containment culvert area Excavation associated with trenching -360 0 750 0 Fill associated with trenching 360 0 750 0 Project Description 5 May 2020 Table 2 Impervious Surfaces Summary (square feet) Project Element Impervious Surface Removed Impervious Surface Replaced Outside 50-foot Marine Buffer Within 50-foot Marine Buffer Outside 50-foot Marine Buffer Within 50-foot Marine Buffer Refinery concrete slab -13,000 0 0 0 Tank farm -17,500 0 53,000 0 Boiler building -980 0 0 0 Gravel area -21,520 0 0 0 Contact water system -150 -250 0 0 Total Proposed Impervious Surface Removed or Replaced -53,400 53,000 Total Proposed Impervious Surface Net Change -400 2.2 Project Timing The Project will be constructed as soon as all permits and approvals are obtained, which is expected in early 2021. Project construction is anticipated to take 1 to 2 years to complete. 2.3 Best Management Practices and Safety Procedures The following BMPs will be implemented during construction and operation to avoid or minimize impacts to the environment: • All applicable permits for the Project will be obtained prior to construction. Construction and operation will be performed according to the requirements and conditions of these permits. • All work will occur in the footprint of existing development and will not disturb any existing shoreline vegetation or habitat. • The contractor will be responsible for the preparation of a Spill Prevention, Control, and Countermeasures Plan to be used for the duration of the Project to safeguard against unintentional spills of fuel, lubricants, or hydraulic fluid from construction equipment. • Erosion control measures will be implemented during construction as shown in the Temporary Erosion Control Plan to be prepared for the Project. • All equipment to be used for construction activities will be cleaned and inspected prior to arriving at the site to ensure no leaks are present and the equipment is functioning properly. • All applicable operations manuals and plans will be updated to reflect new facilities. • Sea Port Sound will provide asbestos and lead abatement requirements and procedures to the contractor prior to construction. Project Description 6 May 2020 During operation of the Project, safe handling of materials and spill response procedures will be followed according to Seaport Sound's policies. Operators are trained in proper material handling and emergency response procedures. Project Description 7 May 2020 Plan Set D1063-SKCI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 AAPO � Pein1 "�, � re '� '� sw aace.,� _ A T 0 N T MINA \ GE 2028 Marine View Drive \ ® F\ B Tacoma, WA 98401 rnSay e�'�mE"` B \ -- Naast / F PLANT MOD ERNIZATION Tacoma C C x PROJECT r-AOr .ai J TK-201 - n •X� � � 1Naernay - Taco -ma 7 Fri f °`l� O----------------------- — — — — --- Tacoma N ------ - _ _ _ - — •- Q • Mh 6[ E 4Fife -zOfh sl6 \ 6 1^ ® \ Q �X\� p o o \ LANE � � ,5z rn F \ \ x NE VICINITY MAP F Ohl 2 N.T.S. \ LANE 0 \ _ 3 , �GK c \ \ \ \ LANE �RPGK G \ \ \ 0 \ = 4 R G LANE F HI KI LI MI NI u u PI © u RI sI TI \ _ 5 n Li Li g ° O \ M � Q � OHWM 100YEAR FLOOD 9.00(NGVD29) 200 SHORELINE ZONE GON d 50' MARINE BUFFER �°• / 0 ER • WORK AREA FOR PROPOSED STORAGE TANKS O ob \ 9 100Y R• �� `� ` 1� 200' SHORELINE ZONE i� S � \\` 0*000 00000 WORK AREA FOR CONTACT WATER DRAWING INDEX DWG NO. TITLE C-0650-001 COVER SHEET C-0650-002 DEMO PLAN C-0650-003 SITE PLAN C-0650-004 GRADING PLAN C-0650-005 EROSION CONTROL PLAN C-0650-006 SECTIONS & DETAILS / o `o 1 ,16 Z o- WORK AREA FOR STORM LINE RELOCATION y� 7i \ a \per d SYSTEM REPLACEMENT J 1 �\--- -- ---- ——__--__ — __% `,11 �j� 50' MARINE BUFFER 4 ------ ------------------ -------------- _ .57 — — �5- — — _ -- \ — — -------- EXISTING API SEPARATOR DOCK 100YEAR FLOOD 9.00'(NGVD29) SURVEYED OHWM ,162 -------------- 0 ------------- — — — I H I u u IJI I K I I L I I M I I N I u u I P I I Q I I R I I s I I T I u OWNER/DEVELOPER SEAPORT SOUND TERMINAL, LLC 4130 E. 1 1 TH STREET TACOMA, WA 98421 50' O' S0' 100' OFFICE: 253-272-9348 1"=50' ASSESSOR PARCEL NO.: 0321263048 0321262062 0321262136 NORWEST ENGINEERING INC. N.E. # 0321262137 CONSULTING ENGINEERS PORTLAND, OREGON IRVINE, CALIFORNIA RV1063 PLOT DATE: 503-254-0110 www.NorwestEngineering.com REFERENCE DWGS. REV DESCRIPTION DWN CHKD DATE SCALE: 1" = 50' DATE SeaPort SOUND TERMINAL, LLC DRAWING NUMBER D1063-SKC001 DWN BY: TRF 3/20/2020 V CAD FILE NAME D1063-SKC001 V CHKD BY: BCK FINAL CK: - - REVISION B ENGR.: — — APPRV: — — W COVER SHEET PLANT MODERNIZATION TACOMA, WA W B ISSUED FOR REVIEW TRF BCK 04/22/20 PLANT NAME SEAPORT SOUND TERMINAL, LLC TACOMA, WA B ISSUED FOR REVIEW TRF I BCK 03/26/20 PREPARED BY: NORWEST ENGINEERING PROJECT NUMBER: RV1063 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 D1063—SKC002 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 A TRUCK RACK \ A — , CONSTRUCTION — , ACCESS ON EXISTING ROADWAY 1. EXISTING BOILER AND 24 X 41 BUILDING TO BE DEMOLISHED. FOUNDATION TO BE REMOVED. 984 SF. PR�p.� n 2. EXISTING STORMWATER AND CONTACT WATER PIPING AND 1 I 1 1 B STRUCTURES TO BE IDENTIFIED WITHIN THE DEMO AREA AND E-- I B LJ Li WILL BE REMOVED. ANY ADDITIONAL UNDERGROUND PIPING IDENTIFIED DURING CONSTRUCTION WILL BE REMOVED WITHIN THE DEMO AREA. 3. DEMO 450LF OF EXISTING EARTHEN BERM. 400 CY 4. OWNER WILL PROVIDE ASBESTOS AND LEAD ABATEMENT O O REQUIREMENTS AND PROCEDURES TO CONTRACTOR PRIOR TO o O \ CONSTRUCTION. o \ 5. EXISTING MANHOLE TO HAVE TOP CRUSHED IN AND FILLED WITH O 0 EXISTING STORM PIPING CDF OR APPROVED FILL MATERIAL. COVER WITH GRAVEL EX O EX BE LOCATED, CUT SURFACE TO MATCH EXISTING GROUND SURFACING AND AND ABANDONED IN ELEVATION. PLACE 6. EXISTING STORM PIPE TO BE FILLED WITH CDF OR OTHER CONSTRUCTION \P\NG / APPROVED MATERIAL. ACCESS ON EXISTING 0 6.1. 430 LF OF EXISTING STORM PIPING o R� ROADWAY �R�F\N� PFtF� k� DEMO EXISTING 6.2. 40 LF OF EXISTING STORM PIPING WITHIN 50' BUFFER .-i BEM CONCRETE AREA 7. CONTACT WATER SYSTEM SEE DRAWING M-0650-102 FROM E O �X\SO 13,000 SF PREVIOUSLY APPROVED SHORELINE SUBSTANTIAL DEVELOPMENT ON\ N\�1 PR d PERMIT EXEMPTION FILE NO. LU17-0038. EXISTING MANHOLE d ® a°d O TO BE ABANDONED E d IN PLACE SEE \ \ NOTE 5 d F / 0 d ° d \ a d \ \ e 0 DEMO EXISTING EQUIPMENT F G d d c O \\ P d \ \ EXISTING STORM PIPING TO BE ABANDONED IN G ° ,d° � \ \ PLACE SEE NOTE 6 D \ DEMO EXISTING H \ d R�PG REFINERY EQUIPMENT \ H d \ AND PIPING WITHIN \ \ a \ PROJECT DEMO AREA d \ ° d O O O d d 0 �� PROJECT DEMO AREA I p \ \ ° a �a� � \ \ \ d p \ \lam d d \ P� DEMO EXISTING 4 CONTRACTOR TO IDENTIFY EXISTING EXISTING TANK (TYP) BOILER AND BUILDING d d UNDERGROUND STORMWATER AND �i SEE NOTE 1 d a CONTACT WATER PIPING AND REMOVE. \ O� \ SEE NOTE 2 off\ K \ \ \ \ �� O� {; o� 200' SHORELINE BUFFER K U 01 M \, \ \ M \ DEMO (7) EXISTING \ TANKS AND PIPING \ o \ LPN \I \\ �' P/ N N \I \\\\ \ ® ® DEMO EXISTING BERM \ \ SEE NOTE 3 1\0N �a DEMO EXISTING PRG �O p, DEMO AERATION PUMP PUMPS, EQUIPMENT AND RELATED PIPING \ P \\ON � CONTACT WATER \ \ PERP P j\ SYSTEM DEMO AREA \\ \\P� SEE NOTE 7 P � ® \ 1 50' SHORELINE BUFFER -- a \ \\ \\ -- \---------------------J EXIST API VAULT EX\s�� \ \ ` o TK-24 I I -------------- ___ .� EXIST API N �� ��_ } — — — — ---- ) I EXISTING STORM PIPING R / —_--- — \ —_--- SEPARATOR —------------ CUT AND ABANDONED R ® 1 � �„��" ___________ _ -- ------ _—� IN PLACE, 40LF WITHIN 50' BUFFER \ -- — ROADWAY N �'C SYSTEM DEMO AREA \� \ ]� CONTACT WATER o _ ----- --- WITHIN 50' BUFFER ROADWAY --------- _---_ ----_ ---� 100YEAR FLOOD 9.00'(NGVD29) T SURVEYED OHWM DOCK HYLEBOS WATERWAY RW FtW ft Rl. RW RNt' RW tW RW FtWIRW T u LEGEND CONTACT WATER SYSTEM' u REFERENCE DWGS. REV DESCRIPTION DWN CHKD DATE SCALE: 1" = 30' DATE A DRAWING NUMBER D1063—SKC002 DEMOLISH OR ABANDON IN SeaPort DWN BY: TRF 3/20/2020 CAD FILE NAME , PLACE UPON COMMISSIONING 50 0 50 100 CHKD BY: BCK — D1063—SKC002 FINAL CK: — — V OF NEW SYSTEMS 1 "=50' SOUND TERMINAL, L L C V REVISION ENGR.: — — B TO BE DEMOLISHED OR ABANDON IN PLACE NORWEST ENGINEERING, INC. N,E, # APPRV: — — DEMO PLAN B ISSUED FOR REVIEW TRF BCK 04/22/20 PLANT NAME w CONSULTING ENGINEERS SEAPORT SOUND TERMINAL, LLC PLANT MODERNIZATION w A I ISSUED FOR REVIEW TRF I BCK 1 03/26/20 PORTLAND, OREGON IRVINE, CALIFORNIA RV1063 PLOT DATE: 503-254-0110 www.NorwestEngineering.com TACOMA, WA TACOMA, WA PREPARED BY: NORWEST ENGINEERING PROJECT NUMBER: RV1063 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 15 16 17 1 18 19 1 20 1 21 1 22 23 1 24 1 25 1 26 27 mm7 28 29 30 31 32 1 33 34 35 D1063-SKCI 1 0 0 0 0 0 0 0 0 0 0 1 1 I 2 3 4 5 6 7 I 8 I 9 I 10 11 12 I 13 I 14 I 15 I 16 I 17 I 18 I 19 I 20 I 21 I 22 I 23 I 24 I 25 I 26 I 27 I 28 EXISTING DISCHARGE PIPE TRUCK RACK TO CITY SANITARY SEWER i CONSTRUCTION SEE CONTACT WATER ACCESS ON EXISTING SYSTEM NOTE 2. ROADWAY �P6 n EXISTING CONTACT WATER DRAIN LINE EXISTING CONTACT C - I LJ Li WATER DRAIN LINE \ FROM ASPHALT LOAD/OFFLOAD AREA \ FROM TRUCK RACK \ \ \ O 0 \ 0 \, 0 O O \ LOCATE EXISTING STORM PIPE ON SEAPORT PROPERTY, CUT EXISTING \ STORM PIPE, INSTALL NEW MANHOLE CONNECT NEW STORM PIPE \ \ / NEW 43LF STORM PIPE \ CONSTRUCTION ` � � o \ \ACCESS ON EXISTING \ ADS N-12 STORM LINE OR CITY APPROVED EQUAL SIZE \ROADWAY - \ / TO BE DETERMINED \ / 1\ I TANK 35 \ 30'Ox40' � \ \ I/ TANK 36 �`� \ \ 30 Ox40 NEW STORM MANHOLE \ I/ TANK 37 / ' \ \ \ 20'Ox35' \ I/ TANK 38 \ \ 20 Ox35 TANK 34 \ I 70'Ox6O' I \ 1 \ \ \ / EXISTING STORM PIPING / TO BE ABANDONED \ o \ \ NEW 417LF STORM PIPE PROPOSED CONCRETE ADS N-12 STORM LINE OR \ CONTAINMENT WALL CITY APPROVED EQUAL SIZE / \ \ 8 IN. WIDE 4 FT. HEIGHT TO BE DETERMINED \ \ WITHIN SEAPORT PROPERTY 1 TANK 33 � \ o 0 \y 70'Ox6O' \ NEW CONTACT WATER DRAIN LINE EXISTING TANK (TYP) \ \ / FROM TANK CONTAINMENT AREA \ MINIMUM TANK / / \ SEPARATION (TYP) 200' SHORELINE BUFFER a No TANK 31 — I — 12' WIDE VEHICLE ACCESS RAMP FOR \ V 70'Ox6O' MAINTENANCE VEHICLES I TANK 32 \ SEE SHEET D1063-SKC006 \ ' VEHICLE SHOWN IS MAINTENANCE 70'Ox6O' I\ WA R TA BBL / \ l TRUCK 7' WIDE 21' LONG � \ 1 � \ WATER TANKS / � o \\ \ \ // \ 16'Ox35' / EXISTING CONTACT WATER DRAIN LINE FROM o TRUCK RACK, ASPHALT LOAD/OFFLOAD AREA, N & TANK CONTAINMENT AREA Pj 39 CULVERT FOR SHARED CONTAINMENT \ / 40 NEW API COALESCING PLATE SEPARATOR W/CONTAINMENT a CEP -i o \ \ \\ \ SURGE POND CAPACITY = 148,000 GALLONS i TK-15 CAPACITY = 60,000 GALLONS EXISTING DISCHARGE PIPE TOTAL CAPACITY = 208,000 GALLONS TO CITY SANITARY SEWER �i NEW LIFT STATION VAULT / \ GE pON PUMP DISCHARGE TO ol CITY SANITARY SEWER � � a 50' SHORELINE BUFFER a \ \ SEE CONTACT WATER \ \ WITH \\ - RAIL SUMP LINE \ \ ` \ 85LF — - I 1 \ SYSTEM NOTE ` \\ \ 85LF TK-24 \ \ 2 ME — _ DOCK SUMP LINE N \� \�-_ ___ - - - - - --------- ---- ---� 1 1 \ \ NEW ® ---------------- \ TESTING LOCATION FOR CITY AND SEAPORT ------ \ — — ROADWAY \/ SOUND AT NEW SAMPLING PORT \� �S / _ ROADWAY -6 NEW FLOW AND PH METERS — — — — NEW 100YEAR FLOOD 9.00'(NGVD29) ADS I LOCATE EXISTING STORM PIPE WITHIN CITY ROADWAY, CUT EXISTING STORM PIPE, TO BI DOCK HYLEBOS WATERWAY SURVEYED OHWM INSTALL NEW MANHOLE CONNECT OUTSI NEW STORM PIPE RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW W PLOT DATE: 1 2 REFERENCE DWGS. REV 30' 0' 30' 60' 1 "=30' NORWEST ENGINEERING, INC. N.E. # B ISSUED FOR REVIEW CONSULTING ENGINEERS B ISSUED FOR REVIEW PORTLAND, OREGON IRVINE, CALIFORNIA RV1063 503-254-0110 www.NorwestEngineering.com PREPARED BY: NORWEST ENGINEERING 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 30 31 32 33 34 35 SITE DATA A TANK SIZE: 70' DIA. X 60' H. SHELL CAPACITY: 41,126 BBLS (EA) WORKING CAPACITY W/HEEL: 38,384 BBLS (EA) WORKING CAPACITY W/O HEEL: 35,643 BBLS (EA) B REQUIRED CONTAINMENT VOLUME @110% LARGEST TANK: 42,223 BBLS TOTAL CONTAINMENT AREA: 44,438 SF AVAILABLE CONTAINMENT AREA: 30,448 SF CONTAINMENT WALL HEIGHT: 4.0' PROPOSED CONTAINMENT VOLUME WITH 6 INCH FREEBOARD: 18,980 BBLS C NFPA 30 TABLE 22.4.1.1(a) LOCATION OF ABOVEGROUND STORAGE TANKS STORING STABLE LIQUIDS - INTERNAL PRESSURE NOT TO EXCEED A GAUGE PRESSURE OF 2.5 PSI (17 K PA) MINIMUM DISTANCE (FT) TYPE OF FROM NEAREST SIDE OF TANK PROTECTION ANY PUBLIC WAY OR FROM NEAREST IMPORTANT BUILDING ON THE SAME PROPERTY FLOATING PROTECTION FOR A x DIAMETER OF TANK ROOF EXPOSURES* * DEFINITION PER NFPA 30 3.3.46: FIRE PROTECTION FOR STRUCTURES ON PROPERTY ADJACENT TO LIQUID STORAGE THAT IS PROVIDED BY (1) A PUBLIC FIRE DEPARTMENT OR (2) A PRIVATE FIRE BRIGADE MAINTAINED ON THE PROPERTY ADJACENT TO THE LIQUID STORAGE, EITHER OF WHICH IS CAPABLE OF PROVIDING COOLING WATER STREAMS TO PROTECT THE PROPERTY ADJACENT TO THE LIQUID STORAGE. NFPA 30 TABLE 22.4.2.1 MINIMUM SHELL —TO —SHELL SPACING OF ABOVEGROUND STORAGE TANKS TANK DIAMETER FLOATING ROOF TANKS ALL TANKS NOT OVER 150 FT (45 Y6 x SUM OF ADJACENT TANK DIAMETERS BUT NOT m) IN DIAMETER LESS THAN 3 FT. (0.9 m) ID I IF I I ■u I CONTACT WATER SYSTEM 1. CONTACT WATER SYSTEM SEE DRAWING C-0650-003 AND M-0650-101 FROM PREVIOUSLY APPROVED SHORELINE SUBSTANTIAL DEVELOPMENT PERMIT EXEMPTION FILE NO. LU17-0038. 2. SYSTEM IS DESIGNED TO PUMP FROM THE SURGE POND AT A K MAXIMUM DISCHARGE FLOW RATE OF 70 GPM TO THE CITY OF TACOMA AS DEFINED IN THE AKART ANALYSIS APPROVED WITH SHORELINE SUBSTANTIAL DEVELOPMENT PERMIT EXEMPTION FILE NO. LU 17-0038. IL I IN � 0 I N 50' BUFFER TRENCHING Q STORM PIPE kNHOLES STORM MANHOLE R Is 54LF STORM PIPE 4-12 STORM LINE OR \PPROVED EQUAL SIZE DETERMINED T DE TANK FARM BERM U DESCRIPTION DWN CHKD DATE SCALE: 1" = 30' DATE SeaPort SOUND TERMINAL, L L C DRAWING NUMBER D1063-SKC003 DWN BY: TRF 3/20/2020 CAD FILE NAME D 1063-SKC003 v CHKD BY: BCK — FINAL CK: — — REVISION B ENGR.: — — APPRV: — — SITE PLAN PLANT MODERNIZATION TACOMA, WA w TRF BCK 04/22/20 PLANT NAME SEAPORT SOUND TERMINAL, LLC TACOMA, WA TRF BCK 03/26/20 PROJECT NUMBER: RV1063 24 25 26 27 28 29 30 31 32 33 34 35 D1063-SKC004 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 A TRUCK RACK SITE SURFACE KEY A - CONSTRUCTION , - , ACCESS ON EXISTING EXISTING BERM AREA REMOVAL ROADWAY 5500 S.F. Pe n PR� I I I I GRAVEL AREA B _ 53,000 S.F. C _ Li Li B CULVERT TRENCH AREA 750 S.F. c OO STORM PIPE TRENCHING AREA (OUTSIDE 50' BUFFER) 2,200 S.F. c p � \ O O \ INSTALL NEW MANHOLE STORM PIPE TRENCHING AREA (INSIDE 50' BUFFER) 200 S.F. / D / NEW STORM PIPE D CONSTRUCTION ACCESS ON EXISTING \ ROADWAY / TANK 35 30'Ox4O' E TANK 36 O 30'�x40' NEW STORM MANHOLE E 20'Ox35' / F / / F TANK 38 ,o'ox35' 0 0 O TANK 34 G 70'Ox6O' / EXISTING STORM PIPING TO BE ABANDONED o O C 006 O NEW STORM PIPE \ PROPOSED CONCRETE \ / CONTAINMENT WALL \ 8 IN. WIDE 4 FT. HEIGHT TANK 33 a � 70'Ox6' EXISTING TANK (TYP) K \ / - - y� K O� 200' SHORELINE BUFFER a \� L // L TANK- 70'0x60'/- — — — — — — M TANK 12' WIDE VEHICLE ACCESS RAMP FOR M 70'0x60' (2) 1,000 BBL �'��- MAINTENANCE VEHICLES WATER TANKS o SEE SHEET D1063-SKC006 \ \ / 16'Ox35' 39 CULVERT FOR SHARED CONTAINMENT 7R��� 0PO`NP� o \ \\ R a \ o P \ \\ \\ \ �� \ P ? \ 5 0 � 50' SHORELINE BUFFER WITHIN 50' BUFFER ----------- ------ 85LF TRENCHING Q it \ \ 75LF STORM PIPE _-__ ----- --------------TK-24 \ \ 2 MANHOLES _ _ , ------------------------�J \ \ ---- -- I O --- , �\ ------- R \ ;---------- 1 NEW STORM MANHOLE \� ti _- -----_ R ---- ----------------- --------------- - ---�/ -- -- -- \ -- — ROADWAY ��- -- ROADWAY — - - ----- -------_------- _ - _ __-- - - — — — NEW STORM PIPE 100YEAR FLOOD 9.00'(NGVD29) T SURVEYED OHWM T DOCK HYLEBOS WATERWAY NEW MANHOLE CONNECT �W RN RNf RW Rw RW - RW W R �1A1 R U U DRAWING NUMBER REFERENCE DWGS. REV DESCRIPTION DWN CHKD DATE SCALE: 1" = 30' DATEA D1063—SKC004 DWN BY: TRF 04/16/2020 CAD FILE NAME 30' 0' 30' 60' CHKD BY: BCK - SeaPort D 1063—SKC004 V 1 "=30' FINAL CK: - - SOUND TERMINAL, L L C REVISION V ENGR.: - - A APPRV: - - NORWEST ENGINEERING, INC. N.E. # PLANT NAME GRADING PLAN w CONSULTING ENGINEERS A ISSUED FOR REVIEW I TRF BCK 04/22/20 SEAPORT SOUND TERMINAL, LLC PLANT MODERNIZATION PORTLAND, OREGON IRVINE, CALIFORNIA RV1063 PROJECT NUMBER: RV1063 TACOMA, WA TACOMA, WA PLOT DATE:: 503-254-0110 www.NorwestEngineering.com PREPARED BY: NORWEST ENGINEERING 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1 26 27 28 29 30 31 32 1 33 34 35 D1063-SKC005 1 2 3 4 5 6 1 7 8 9 10 11 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 p TRUCK RACK \ q - CONSTRUCTION , - , ACCESS ON EXISTING \ ROADWAY II PR% II B - Li Li BC O �- O O c c 0 OO \ NEW MANHOLE D D CONSTRUCTION // / NEW STORM PIPE ACCESS ON EXISTING / ROADWAY / E TANK 35 INSTALL SILT FENCE 30'Ox4O' I PER DETAIL, I TANK 36 // SHEET D1063-SKC006 O I \ E 30'Ox4O' i - NEW STORM MANHOLE I/ TANK 37 F \ 20 Ox35 \ / / \ F I/ TANK 38 a INSTALL SILT FENCE \ 20'�x35' / I a PER DETAIL, O \ / I TANK 34 \ SHEET D1063-SKC006 G _ G INSTALL HIGH VISIBILITY FENCE I 70'Ox6O' AND SILT FENCE TO INDICATE I WORK LIMITS \ / \ / EXISTING STORM PIPING / TO BE \ ABANDONED H \ / � H � / P� i NEW STORM PIPE O / \ SEE SHEET D1063-SKC003 PROPOSED CONCRETE / CONTAINMENT WALL / \ 8 IN. WIDE 4 FT. HEIGHT INSTALL HIGH VISIBILITY FENCE \I / AND SILT FENCE TO INDICATE WORK LIMITS a TANK 33 o / I 70'Ox6O' EXISTING TANK (TYP) y K PROTECT STOCKPILES AS y� K NEEDED PER PLASTIC SHEETING DETAIL SHEET 172 200' SHORELINE BUFFER a \ / \ L TANK 31 — ► — — _ V 70'Ox6O' TANK 32 I M I 70'Ox6O' I\ (2) 1,000 BBL / lop ACCESS RAMP 1 \� WATER TANKS a o 1 6 Ox35 / N 39 40 CULVERT FOR SHARED CONTAINMENT \ o OL_-__-___ / �\ RO F o N \ \ \ INSTALL SILT FENCE \ \ \ PER DETAIL, \ SHEET D1063—SKC006 \ \ 77 SURGE PONO O No \\11 50' SHORELINE BUFFER a \\ \\ \ \\�- U --- \ ----_ - 1 ____ -----------�1 TK-24 ` `\ ----------------------- - ----- ------ I� I �� I NEW STORM MANHOLE _ R _® __ / _ _ -- — ROADWAY \ ` - \ ROADWAY-- — — --- ---- -------------- S // s 6 — — -- -- 6 — — -- % s _ _ — — INSTALL BAG FILTER AT ALL CATCHBASIN WITHIN -- — — — — — _ NEW AND ADJACENT TO 100YEAR FLOOD 9.00' NGVD29 INSTALL HIGH VISIBILITY FENCE WORK AREA PER DETAIL, ( ) STORM PIPE NEW MANHOLE AND SILT FENCE TO INDICATE SHEET D1063—SKC006 r WORK LIMITS (TYP) SURVEYED OHWM r DOCK HYLEBOS WATERWAY RW RaAI Rw Rw Rw RW R �tW R1A� R�IU R u u DRAWING NUMBER REFERENCE DWGS. REV DESCRIPTION DWN CHKD DATE SCALE: 1" = 30' DATE D1063—SKC005 DWN BY: TRF 4/16/2020 CAD FILE NAME 1 1 CHKD BY: BCK - 30' 0' 30' 60' SeaPort D 1063—SKC005 FINAL CK: - - V 1 "=30' SOUND TERMINAL, L L C V REVISION ENGR.: - - A APPRV: - - NORWEST ENGINEERING, INC. N.E. # EROSION CONTROL PLAN PLANT NAME w CONSULTING ENGINEERS SEAPORT SOUND TERMINAL, LLC PLANT MODERNIZATION w A ISSUED FOR REVIEW TRF BCK 04/22/20 PORTLAND, OREGON IRVINE, CALIFORNIA RV1063 TACOMA, WA TACOMA, WA PROJECT NUMBER: RV1063 PLOT DATE: 503-254-0110 www.NorwestEngineering.com PREPARED BY: NORWEST ENGINEERING 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 D1063-SKCI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 FA F A BI CI DI EI FI GI HI n � KI LI NI PI RI sI TI UI « +++ + + ` + .* *** + +* + «*' MIN 12" OVERLAP OF SEAMS TETHERED SANDBAGS ON 10' GRID \ ++++++++++ +++ +*++ + + +* +++++++++++++ +++ ++ +++ ++ +++ +++++ ++++ +++++++ +++++ +++++ +++ ++++ *+«+ + + + ++++ ++++++ ++ ++ +++ + ++ ++++++++++ +++ +++ +++ + + ++++++ ++++++ +++ +++ ++++ + + + ++++++++++++++++ +++++++ ++ + + +*++++ ++ +++ ++++*+* ++* + +++++ ++++ + +++++ ++++++ +++ +++ ++++ +++ ++ +++* + ++ + +++++++++ + +++++ + +++ +++ ++ ++ + ++++++ +++++++ + ++++ +++ ++ +++ +++ +*+++++++* + +++++ +*+*+++*+* +++ +++++ ++++ +++ +++++++++ +++ ++ +++ +++++ +++ + + + ++ + ++++ +++++ +++++++ +. +++ ++++ .++ ++. + ++++ +++++ ++++++ +++ + +++ +++ ++ +++ ++ +++++++++++ +++++++ ++ + ++ +++ +++ ++++++ +++++++++++ ++++++ + + ++ +++ ++ +++++++ BARRIER REQUIRED AT TOE OF SLOPE NOTES: 1. PLASTIC SHEETING IS USED TO PROVIDE IMMEDIATE PROTECTION TO STOCKPILES. 2. TOE -IN THE TOP OF THE SHEETING IN A 6"x6" TRENCH BACKFILLED WITH COMPACTED NATIVE MATERIAL. 3. INSTALL A GRAVEL BERM, RIPRAP, OR OTHER SUITABLE PROTECTION AT THE TOP OF THE SLOPE IN ORDER TO DISSIPATE RUNOFF VELOCITY. 4. ANCHOR THE PLASTIC USING SANDBAGS OR OTHER SUITABLE TETHERED ANCHOR SYSTEM SPACED ON A 10' GRID SPACING IN ALL DIRECTIONS. 5. OVERLAP SEAMS 12 INCH MINIMUM. TAPE, ROLL AND STAKE THE SEAMS AND THEN WEIGH DOWN THE ENTIRE LENGTH. 6. BARRIER IS REQUIRED AT TOE OF STOCK PILE. 7. REPLACE TORN SHEETS AND REPAIR OPEN SEAMS. COMPLETELY REMOVE AND REPLACE PLASTIC WHEN IT BEGINS TO DETERIORATE. PLASTIC SHEETING N.T.S. k �I 4 4• S y f h r. % P4 SEDIMENT ACCUMULAT10N INLET PROTECTION NOTES. 1, FILTERS SHALL BE INSPECTED AFTER EACH STORM EVENT AND CLEANED OR REPLACEO WHEN 1 /3 FULL. BAG FILTER NOT TO SCALE Figure 30. Catchbasin Filter E-" • ••••• ••-••••• • •-• •• �• I I\LI /"11\LV JV UVI\rIVL EROSION CONTROL NOTES 1. ALL EROSION CONTROL MEASURES AND BMP'S TO BE INSTALLED AND MAINTAINED PER THE CITY OF TACOMA "STORMWATER MANAGEMENT MANUAL 2016 EDITION", AND MUST MEET CITY OF TACOMA AND DEPARTMENT OF ECOLOGY CODES, REVIEW, AND APPROVALS. 2. SILT FENCE FILTER FABRIC USED AS AN EROSION CONTROL SEDIMENT FILTER MUST MEET THE REQUIREMENTS OF THE CITY OF TACOMA STORMWATER MANAGEMENT MANUAL TABLE 2-12: GEOTEXTILE STANDARDS. 3. SEE EROSION CONTROL NOTES ON SHEET D1063-SKC005. 4. FOR STABILIZED CONSTRUCTION ENTRANCE, USE A GEOTEXTILE FABRIC SUCH AS MIRIFI 60OX, OR ONE PER THE FOLLOWING STANDARDS: A. GRAB TENSILE STRENGTH: 200 PSI MINIMUM. B. GRAB TENSILE ELONGATION: 30% MAXIMUM. C. MULLEN BURST STRENGTH: 400 PSI MINIMUM. D. APPARENT OPENING SIZE (AOS): 20 TO 45 (U.S. STANDARD SIEVE SIZE). 5. ALL FIGURES FROM CITY OF TACOMA STORMWATER MANAGEMENT MANUAL. JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. r rr■■r■■■■■rerr■r■.■r��.■■ RiisMiRMimommor's ...................... ■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■ A ME on moo ................. ■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■ MEMMEMENEEME 6' MAk 2"x2" BY 14 Ga_ WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED MINIMUM 4"x4" TRENCH POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED 2"x2" WOOD POSTS, STEEL FENCE NOTE: FILTER FABRIC FENCES SHALL BE POSTS, REBAR, OR EQUIVALENT INSTALLED ALONC CONTOUR WHENEVER POSSIBLE 2"x2" BY 14 Co- WIRE OR EQUIVALENT, IF STANDARD �t STRENGTH FABRIC USED ►r FILTER FABRIC I CV 77 _F1 1 - MINIMUM 4%4" TRENCH N BACKFILL TRENCH WITH NATIVE SOIL OR 3/4"-1.5" WASHED GRAVEL 2%2" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT Figure 34. Silt Fence 50'-0" INTERIOR RAMP 50'-0" EXTERIOR RAMP (:I:) ACCESS RAMP D106��C004 N.T.S. n TANK FOUNDATION D1063-SK C004 N.T.S. rl^klr, 11/AI 1 EX. GR EL VAF GRADING MATERIAL SPECIFICATIONS DESCRIPTION,C. MATERIAL LOCATION COMPACTION METHOD STANDARD SPE SAND TANK FLOOR (SEE NOTES BELOW) (SEE NOTES BELOW) GRAVEL ROAD SURFACING SITE CRUSHED SURFACING, B TOP COURSE 9-03.9(3) GENERAL FILL CONTAINMENT AREA SELECT BORROW (2) 4" MAX. 9-03.14(2) B BALLAST TANK FOUNDATIONS PERMEABLE BALLAST 9-03.9(2) C I IC ID I IF I I GENERAL FILL 1. GENERAL FILL MATERIAL TO BE FREE OF DEBRIS, ORGANIC CONTAMINANTS, AND MFR ROCK FRAGMENTS LARGER THAN 4 INCHES. FILL MATERIAL TO BE OF "SELECT BORROW" AS DESCRIBED IN SECTION 9-03.14(2) OF THE WSDOT STANDARD ER SPECIFICATIONS. BEET BALLAST J 1. CONSTRUCT IN 6" LIFTS PER COMPACTION METHOD C. SAND PAD MATERIAL 1. SAND PAD MATERIAL SHALL BE MECHANICALLY WASHED SAND THAT CONFORMS TO EITHER OF THE FOLLOWING, IN ORDER OF PREFERENCE: K 1.1. ASTM C778 TYPE "20-30 SAND" 1.2. ASTM C778 "GRADED SAND", OR 1.3. ASTM C 144 2. SAND PAD SHALL BE PLACED IN LOOSE LIFTS WITH A MAXIMUM THICKNESS OF 8" AND CLEAN, FREE OF CLAY BALLS AND LUMPS OF EARTH AND FREE OF L CORROSIVE MATERIALS SUCH AS SALT IN BEACH SAND OR SULFUR IN CRUSHED SLAG. 3. SAND PAD SHALL BE COMPACTED TO 95% OF ITS MAXIMUM DRY DENSITY IN ACCORDANCE WITH ASTM D1557. M 4. SAND PAD SHALL BE COMPACTED BY MECHANICAL MEANS AND NOT BY FLOODING. 5. SAND PAD MATERIAL SHALL HAVE A MAXIMUM CHLORIDE CONTENT OF 300 PPM. CHLORIDE CONTENT SHALL BE DETERMINED IN ACCORDANCE WITH ASTM D516. 6. SAND PAD MATERIAL SHALL HAVE A MAXIMUM SULFATE CONTENT OF 200 PPM. N SULFATE CONTENT SHALL BE DETERMINED IN ACCORDANCE WITH ASTM D516. 7. SAND PAD MATERIAL SHALL HAVE A NEUTRAL PH OF 6.5 TO 8.5 PH SHALL BE DETERMINED IN ACCORDANCE WITH ASTM G51. 8. RESISTIVITY OF SAND PAD MATERIAL SHALL BE DETERMINED IN ACCORDANCE WITH ASTM G57. RESULTS OF THE RESISTIVITY TEST SHALL BE SENT TO THE CATHODIC 0 DESIGNER. 9. SAND PAD MATERIAL SAMPLES USD TO DETERMINE THE PROPERTIES OF THE MATERIAL SHALL BE TAKEN FROM THE ACTUAL MATERIAL TO BE USED DURING CONSTRUCTION. P 10. ANY WATER USED TO WET THE SAND PAD SHALL BE TESTED TO PREVENT CONTAMINATION OF THE SAND PAD. I Is VVIY11 /"1V I"V I1P IIYL JVIL CONTAINMENT WALL D106�SKC004 N.T.S. T U REFERENCE DWGS. REV DESCRIPTION DWN CHKD DATE SCALE: N.T.S. DATE SeaPort SOUND TERMINAL, LLC DRAWING NUMBER D 1063-SKC006 DWN BY: TRF 4/16/2020 CAD FILE NAME D 1063-SKC006 v CHKD BY: BCK - FINAL CK: - - REVISION A ENGR.: - - APPRV: - - NORWEST ENGINEERING, INC. N.E. # I PLANT NAME SECTIONS & DETAILS w PORTLAND, OREGON IRVINE, CALIFORNIA RV0988 CONSULTING ENGINEERS A ISSUED FOR REVIEW TRF BCK 04/22/2020 SEAPORT SOUND TERMINAL, LLC PLANT MODERNIZATION w PLOT DATE: 503-254-0110 www.NorwestEngineering.com PREPARED BY: NORWEST ENGINEERING PROJECT NUMBER: RV1063 TACOMA, WA TACOMA, WA 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 15 16 17 1 18 19 1 20 1 21 1 22 23 24 1 25 1 26 27 mmm728 29 30 31 32 1 33 34 35