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HomeMy WebLinkAbout4056 Contract Number: 4056 Vendor: ECOLOGY - DEPT OF (WA STATE) Subject: Remediation - Evergreen Park Expansion Department: Engineering File Class: LEG 12-1 Begin Date: 09/08/1999 End Date: Review Date: 06/15/2011 Vault Date: Comments: Agreed Order Review date for tracking only STATE OF WASHiNGTON DEPARTMENT OF ECOLOGY In the Matter of Remedial Action By: AGREED ORDER The City of Bremerton No. DE 239 4th Street Bremerton, WA 98337 TO: The City of Bremerton 239 4th Street Bremerton, WA 98337 JURISDICTION 1. This Agreed Order is issued pursuant to the authority of RCW 70.105D.050(1). II. DEFINITIONS 2. Unless otherwise specified, the definitions set forth in RCW chapter 70.105D and WAC chapter 173-340 shall control the meanings of the terms used in this Agreed Order. 3. The term "Attachment" means those documents that are attached to this Agreed Order. 4. The term "Evergreen Park Expansion Property" means the property legally described as set forth in Attachment A. AGREED OKDER Page I of 13 { WJ403537.DOC;I/07877.000001/} 5. The term "Facility" or "Site" means the Evergreen Park Expansion Property. III. FINDINGS OF FACT 6. Ecology makes the following Findings of Fact, without admission of such facts by the City of Bremerton, hereinafter referred to as the "City." 7. The City is planning to expand the current extent of Evergreen Park, which is located adjacent to Sheldon Boulevard, in Bremerton, Washington. Evergreen Park will be extended to the south around Smith Cove to provide the public with an improved shoreline recreational facility. The land that will be redeveloped is currently mostly vacant property that has been used for industrial purposes since the early 1900s. 8. The land to be redeveloped consists of the following: the southern, currently undeveloped portion of Evergreen Park; the former City Depot property; the Brem-Air Disposal Company property; the Lofthus property; and the Puget Power property. Much of the area that will be included in the Park expansion was created from historical filling of Smith Cove dating to the early 1900s. The type, source, and quality of the fill material is not documented, but subsurface investigations have confirmed the presence of non-native sediments and foreign fill materials such as scrap metal, wire, wood chips, and other debris. 9. Shallow soils are a heterogeneous mixture of silt and sand fill material with varying proportions of gravel and fill debris. The shallow groundwater surface is generally encountered between depths of 3 and 9 feet below ground surface and is affected by the marine tides in Smith Cove that have significant daily fluctuations. 10. Based upon analytical work performed to date, petroleum hydrocarbons have been detected in soil and groundwater and likely historical source areas. The petroleum AGREED ORDER Page 2 of 13 {WJ403537.DOC;I/07877.000001/} hydrocarbons appear to be aged and weathered, suggesting that in many cases these petroleum fuels have been present in soil and groundwater for an extended period of time. Other compounds, including polycyclic aromatic hydrocarbons, volatile organic compounds and metals were detected in only a limited number of samples, which suggests that effects from these chemicals on soil and groundwater are limited. 11. Ecology has received and approved a report entitled "Remedial Investigation Report: Evergreen Park Expansion Project," dated July 1997. The report was prepared by PTI Environmental Services and Failure Analysis Associates, Inc., on behalf of the City. The report summarizes prior investigations which documented the presence of petroleum hydrocarbons in excess of Method A cleanup standards on the Site. 12. Ecology has received and approved a report entitled "Focused Feasibility Study: Evergreen Park Expansion Project" (Exponent, 1998), which describes the evaluation of remedial options for the Site. In addition, Ecology has received and approved an Interim Action Work Plan and Engineering Design Report (Exponent, 1998) which describes proposed remedial actions to be performed pursuant to this Agreed Order. IV. ECOLOGY DETERMINATIONS 13. The City is an "owner" as defined at RCW 70.105D.020(11) of a "facility" as defined in RCW 70.105D.020(4). 14. The Facility is known as the Evergreen Park Expansion Site and is located adjacent to Sheldon Boulevard in Bremerton, Washington as described in Attachment A. The Facility consists of the Evergreen Park Expansion Site, including groundwater and surface water on or under these properties. AGREED ORDER Page 3 of 13 {WJ403537 DOC;I/07877.000001/I 15. The substances found at the Facility are "hazardous substances" as defined at RCW 70.105D.020(7). 16. Based on the presence of these hazardous substances at the Facility and all factors known to Ecology, there is a release or threatened release of hazardous substances from the Facility, as defined at RCW 70.105D.020(20). 17. Pursuant to RCW 70.105D.030(1) and 70.105D.050, Ecology may require potentially liable persons to investigate or conduct other remedial actions, with respect to the release or threatened release of hazardous substances, whenever it believes such action to be in the public interest. 18. Based on the foregoing facts, Ecology believes the remedial action required by this Agreed Order is in the public interest. V. WORK TO BE PERFORMED 19. Based on the foregoing Facts and Determinations, it is hereby ordered that the City take the following remedial actions and that these actions be conducted in accordance xvith WAC chapter 173-340 unless otherwise specifically provided for herein. 20. No later than thirty (30) calendar days after the effective date of this Agreed Order, the City shall begin to implement and perform the work described in the Interim Action Work Plan (Attachment B) and record the Restrictive Covenant (Attachment C) with the Kitsap County Auditor's Office/Recording Department. The City shall provide Ecology with proof of such recording within thirty (30) days of recording. The City's obligation to perform remedial actions under this Agreed Order is limited to the work described in Attachment B. The schedule for performance is described in Attachment E. AGREED ORDER Page 4 of 13 {WJ403537 DOC;1/07877 000001/} VI. REPORTING REQUIREMENTS 21. All reports required by this Agreed Order shall be completed for the Site as a whole by a single designated person, agent, or firm agreed upon by the City. If analytical data is obtained, it shall be likewise collected and submitted for analysis to appropriate laboratories, depending on the type of analysis required or to obtain confirmation or comparative analyses, if required. 22. The City shall submit such reports as are required by the schedule set forth in the approved Interim Action Work Plan, or as otherwise approved by Ecology. See Attachment B. The letter reports shall describe the status of Site activities and proposed actions for the following reporting period. 23. All scheduled deliverables identified in the approved Interim Action Plan (Attachment B), including groundwater sampling data, shall be submitted to Ecology in accordance with WAC 173-340-840 unless otherwise specified in this Agreed Order. 24. All nonprivileged historic reports, letters, notes, memos, laboratory reports, or data transmittals and any other documents or information in any form about, for, or relating to the Site in the possession of the City and/or any consultant, advisor, employee, agent, or assign of the City shall be made available for inspection by the Ecology project coordinator within fifteen (15) calendar days of the effective date of this Order. VII. TERMS AND CONDITIONS OF AGREED ORDER 25. Public Notices. RCW 70.105D.030(2)(a) requires that, at a minimum, this Agreed Order be subject to concurrent public notice. Ecology shall be responsible for providing AGREED ORDER Page 5 of 13 {WJ403537 DOC;1/07877.000001/} such public notice and reserves the right to modify or withdraw any provisions of this Agreed Order should public comment disclose facts or considerations which indicate to Ecology that the Agreed Order is inadequate or improper in any respect. 26. Remedial Action Costs. a. The City shall pay to Ecology costs reasonably incurred by Ecology to implement this Order. These costs shall include work performed by Ecology or its contractors for investigations, remedial actions, and Order preparation, oversight and administration. Ecology costs shall include costs of direct activities and support costs of direct activities as defined in WAC 173-340-550(2). b. The City shall pay the required amount within ninety (90) days of receiving from Ecology an itemized statement of costs that includes a summary of costs incurred, an identification of involved staff, and the amount of time spent by involved staff members on the project. A general descr/ption of work performed will be provided upon request. Itemized statements shall be prepared quarterly. Failure to pay Ecology's costs within ninety (90) days of receipt of the itemized statement of costs will result in interest charges as specified in WAC 173- 340-550(4). 27. Desienated Project Coordinators. a. The project coordinator for Ecology is: Judith Aitken Toxics Cleanup Program Department of Ecology Northwest Regional Office 3190-160th Avenue S.E. Bellevue, WA 98008-5452 Telephone: (425) 649-7135 Facsimile: (425) 649-7098 AGREED ORDER Page 6 of 13 (WJ403537 DOC;1/07877.000001/} b. The project coordinator for the City is: W. Eugene Sampley City of Bremerton Department of Public Works and Utilities 3027 Olympus Drive Bremerton, WA 983 l 0-4799 Telephone: (360) 478-5315 Facsimile: (360) 478-5018 c. The project coordinators shall be responsible for overseeing the implementation of this Agreed Order. To the maximum extent possible, communications between Ecology and the City and all documents, including reports, approvals, and other correspondence concerning the activities performed pursuant to the terms and conditions of this Agreed Order, shall be directed through the project coordinators. Should Ecology or the City change project coordinators, written notification shall be provided to Ecology or the City at least ten (10) calendar days prior to the change. 28. Performance. a. All work performed pursuant to this Agreed Order shall be under the direction and supervision, as necessary, of a professional engineer or hydrogeologist, or similar expert, with appropriate training, experience, and expertise in hazardous waste site investigation and cleanup. The City shall notify Ecology as to the identity of such engineers or hydrogeologist(s), and of any contractors and subcontractors to be used in carrying out the terms of this Agreed Order, in advance of their involvement at the Site. The City shall provide a copy of this Agreed Order to all agents, contractors, and subcontractors retained to perform work required by this Agreed Order and shall ensure that all work undertaken by such agents, contractors, and subcontractors will be in compliance with this Agreed Order. AGREED ORDER Page 7 of 13 { WJ403537.DOC;1/07877.00000I/} b. Except where necessary to abate an emergency situation, the City shall not perform any remedial actions at the Site outside that required by this Agreed Order unless Ecology concurs, in writing, with such additional remedial actions. WAC 173-340-400(7)(b)(i) requires that "construction" performed on the Site must be under the supervision of a professional engineer registered in the state of Washington. 29. Access. Ecology or any Ecology authorized representative shall have the authority to enter and freely move about the Site at all reasonable times for the purposes of, inter alia: inspecting records, operation logs, and contracts related to the work being performed pursuant to this Agreed Order; reviewing the progress in carrying out the terms of this Agreed Order; conducting such tests or collecting samples as Ecology or the project coordinator may deem necessary; using a camera, sound recording, or other documentary type equipment to record work done pursuant to this Agreed Order; and verifying the data submitted to Ecology by the City. By signing this Agreed Order, the City agrees that this Agreed Order constitutes reasonable notice of access and agrees to allow access to the Site at all reasonable times for purposes of overseeing work performed under this Agreed Order. Ecology shall provide seven (7) days' notice to the City before any plarmed sampling activity and shall allow split or replicate samples to be taken by the City during such sampling unless doing so interferes with Ecology's sampling. The City shall provide seven (7) days' notice to Ecology before any planned sampling activity and shall allow split or replicate samples to be taken by Ecology. 30. Public Participation. The City shall prepare and~or update a public participation plan for the Site. Ecology shall maintain the responsibility for public participation at the Site. The City shall help coordinate and implement public participation for the Site. AGKEED ORDER Page 8 of 13 { W J403537.DOC; 1/07877 000001 / } 31. Retention of Records. The City shall preserve in a readily retrievable fashion, during the pendency of this Agreed Order and for ten (10) years from the date of completion of the work performed pursuant to this Agreed Order, all records, reports, documents, and underlying data in its possession relevant to this Agreed Order. Should any portion of the work performed hereunder be undertaken through contractors or agents of the City, then the City agrees to include in their contract with such contractors or agents a record retention requirement meeting the terms of this Paragraph. 32. Dispute Resolution. The City may request Ecology to resolve disputes which may arise during the implementation of this Agreed Order. Such request shall be in writing and directed to the signatory, or his/her successor(s), to this Agreed Order. Ecology resolution of the dispute shall be binding and final. The City is not relieved of any requirement of this Agreed Order during the pendency of the dispute and remains responsible for timely compliance with the terms of the Agreed Order unless otherwise provided by Ecology in writing. 33. Reservation of Ri,~hts--No Settlement. a. This Agreed Order is not a settlement under RCW chapter 70.105D. Ecology's signature on this Agreed Order in no way constitutes a covenant not to sue or a compromise of any Ecology rights or authority. Ecology reserves the right to bring an action against the City to recover remedial action costs not paid to or received by Ecology under this Agreed Order. In addition, Ecology will not take additional enforcement actions against the City to require those remedial actions required by this Agreed Order, provided the City complies with this Agreed Order. b. Ecology reserves the right, however, to require additional remedial actions at the Site should it deem such actions necessary. AGREED ORDER Page 9 of 13 {WJ403537.DOC;I/07877.000001/} c. Ecology also reserves all rights regarding the injury to, destruction of, or loss of natural resources resulting from the releases or threatened releases of hazardous substances from the Site. d. In the event Ecology determines that conditions at the Site are creating or have the potential to create a danger to the health or welfare of the people on the Site or in the surrounding area or to the environment, Ecology may order the City to stop further implementation of this Agreed Order for such period of time as needed to abate the danger. 34. Transference of Property. a. No voluntary or involuntary conveyance or relinquishment of title, easement, leasehold, or other interest in any portion of the Site shall be consummated by the City without provision for continued implementation of all requirements of this Agreed Order including implementation of any remedial actions required by this Agreed Order. b. Prior to transfer of any legal or equitable interest the City may have in the Site or any portions thereof, the City shall serve a copy of this Agreed Order upon any prospective purchaser, lessee, transferee, assignee, or other successor in such interest. At least thirty (30) days prior to finalization of any transfer, the City shall notify Ecology of the contemplated transfer. 35. Compliance With Applicable Laws. a. All actions camed out by the City pursuant to this Agreed Order shall be done in accordance with all applicable federal, state, and local requirements, including requirements to obtain necessary permits, except as specified in RCW 70.105D.090(1). b. Pursuant to RCW 70.105D.090(1), the substantive requirements of Chapters 70.94, 70.95, 70.105, 75.20, 90.48, and 90.58 RCW and of any laws requiring or AGREED ORDER Page 10 of 13 { W J403537 DOC;1/07877.000001 / } authorizing local government permits or approvals for the remedial action under this Agreed Order that are known to be applicable at the time of issuance of the Agreed Order have been identified by the City. See Attachment D. Additional requirements will be added by amendment as they are identified and determined to be applicable by the Ecology project coordinator and are binding and enforceable requirements of the Agreed Order. c. The City has a continuing obligation to determine whether additional permits or approvals addressed in RCW 70.105D.090(I) would otherwise be required for the remedial action under this Agreed Order. In the event the City determines that additional permits or approvals addressed in RCW 70.105D.090(1) would otherwise be required for the remedial action under this Agreed Order, it shall promptly notify Ecology of this determination. Ecology shall determine whether Ecology or the City shall be responsible to contact the appropriate state and/or local agencies. If Ecology so requires, the City shall promptly consult with the appropriate state and/or local agencies and provide Ecology with written documentation from those agencies of the substantive requirements those agencies believe are applicable to the remedial action. Ecology shall make the final determination on substantive requirements that must be met by the City and on how the City must meet those requirements. Ecology shall inform the City in writing of these requirements. Once established by Ecology, the additional requirements shall be enforceable requirements of this Agreed Order. The City shall not begin or continue the remedial action potentially subject to the additional requirements until Ecology makes its final determination. Ecology shall make every effort to reach its final determination within twenty-one (21) days of receiving notification from the City. AGREED ORDER Page I 1 of 13 { WJ403537.DOC;I/07877.000001/} d. Ecology shall ensure that notice and opportunity for comment is provided to the public and appropriate agencies prior to establishing the substantive requirements under this Section. e. Pursuant to RCW 70.105D.090(2), in the event Ecology determines that the exemption from complying with the procedural requirements of the laws referenced in RCW 70.I05D.090(1) would result in the loss of approval from a federal agency which is necessary for the State to administer any federal law, the exemption shall not apply, and the City shall comply with both the procedural and substantive requirements of the laws referenced in RCW 70.105D.090(I), including any requirements to obtain permits. VIII. SATISFACTION OF THIS AGREED ORDER 36. The provisions of this Agreed Order shall be deemed satisfied upon the City's receipt of wht~en notification from Ecology that the City has completed the remedial activity required by this Agreed Order, as amended by any modifications, and that ali other provisions of this Agreed Order have been complied with. Ecology will make every reasonable effort to respond within ten (10) working days of receipt of requests under this Paragraph from the City. Such requests shall be both verbal by telephone and in writing to the Ecology project coordinator. IX. ENFORCEMENT 37. Pursuant to RCW 70.105D.050, this Agreed Order may be enforced as follows: a. The Attorney General may bring an action to enforce this Agreed Order in a state or federal court. AGREED ORDER Page 12 of 13 { WJ403537 DOC;I/07877.000001/} b. The Attomey General may seek, by filing an action if necessary, to recover amounts spent by Ecology for investigative and remedial actions and orders related to the Site. c. In the event the City refuses, without sufficient cause, to comply with any term of this Agreed Order, the City will be liable for: i. up to three times the amount of any costs incurred by the state of Washington as a result of its refusal to comply; and ii. civil penalties of up to $25,000 per day for each day it refuses to comply. d. This Agreed Order is not appealable to the Washington State Pollution Control Hearings Board. This Agreed Order may be reviewed only as provided under RCW 70.105D.060. Effective date of this Agreed Order: .~,7~, 1999. STATE OF WASHINGTON DEPARTMENT OF ECOLOGY By: Steve Alexander Section Manager Toxics Cleanup Program Northwest Regional Office Di~e THE CITY OF BREMERTON APPttOVED AS, TO % .; Title: Mayor Ci~t~y Cler~- AGREED ORDER Page 13 of 13 {WJ403537 DOC;I/07877 000001/} ATTACHMENT A That portion of Government Lot 1, Section 13, Township 24 North, Range l East, Willamette Meridian, more particularly described as follows: Beginning at a point north of the southwest comer of said Government Lot 1, said point also being the intersection of the easterly right of way of Park Avenue and southerly right of way of * I4th Street; thence easterly along said southerly right of way of * 14th Street to the intersection of the easterly right of way of Sheldon Boulevard, being the true point of beginning and also known as point "A"; thence southerly along said easterly right of way to the northerly right of way of 13th Street; thence easterly along said northerly right of way to the intersection of said northerly right of way and the westerly right of way of Highland Avenue; thence northerly along said westerly right of way to an intersection with the Government Meander line of Smith's Bay; thence continuing northerly along said westerly right of way of Highland Avenue, 105 feet more or less to a point of intersection with a line 50 feet distant, as measured at right angles southeasterly from the centerline of the existing transmission line crossing Dye's Inlet; thence parallel to said transmission line northeasterly to the intersection to the high water line of Smith's Bay; thence westerly and northerly along said high water line to the southerly right of way of *14th Street; thence westerly along said southerly right of way of *I4th Street to the easterly right of way of Sheldon Boulevard and the true point of begirming. Together with that portion of said Government Lot 1 described as follows: Beginning at said point "A", also being the tree point of beginning; thence along the easterly edge of an existing asphalt road, North 10004'30" East 84.24 feet; thence North 22022'05'' East 265.62 feet; thence North 58053'57'' East 77.24 feet; thence leaving said easterly edge, North 83°58'19'' East 160 feet, more or less to the high water line of Smith's Bay; thence southerly along said high water line to the southerly right of way of said *14th Street; thence westerly along said southerly right of way of *14th Street to the said easterly right of way of Sheldon Boulevard and the true point ofbegirming. Together with tidelands. Except for that portion of Block 4, Bayview Addition to the town of Bremerton, as recorded in Volume 2 of plats, page 58, records of Kitsap County, Washington, described as follows: Beginning at the southeast comer of said Block 4 and the true point of beginning; thence west on the original platted northerly right of way of 13th Street 79.15 feet; thence N23°05'15"W-120.12 feet; thence N52°58'15"E-40.24 feet to the westerly right of way of Highland Avenue; thence southerly along said westerly right of way to the true point of beginning. Together with that portion of 13th Street adjoining the above described parcel, vacated per City of Bremerton Ordinance 828. *Location per Auditor's file #42895 Vol. 58 pg. 376 {wJ403528 DOC;I/07877 000001/} ATTACHMENT B INTERIM ACTION WORK PLAN {WJ403608.DOC;I/07877 000001/} ATTACHMENT C AFTER RECORDING MAIL TO: William F. Joyce Ogden Murphy Wallace, P.L.L.C. 160l Fifth Avenue, Suite 2100 Seattle, WA 98101-1686 DOCUMENT TITLE: Restrictive Covenant GRANTOR(S): G1La~NTEE(S): LEGAL DESCRIPTION: REFERENCE NUMBER: ASSESSOR'S PROPERTY TAX PARCEL/ACCOUNT NUMBER: RESTRICTIVE COVENANT CITY OF BREMERTON~ EVERGREEN PARK - SOUTH This Declaration of Restrictive Covenant is made pursuant to RCW 70.105D.030(1)(f) and (g) and WAC 173-340-440 by the City of Bremerton, its successors and assigns, and the State of Washington Department of Ecology, its successors and assigns (hereafter "Ecology"). A remedial action (hereafter "Remedial Action") occurred at the property that is the subject of this Restrictive Covenant pursuant to Agreed Order between the City of Bremerton and Ecology. The Remedial Action conducted at the property is described in the following documents: 1) Remedial Investigation Report: Evergreen Park Expansion Project {WJ403606 DOC;1/07877 000001/} -1- (Failure, 1997); 2) Focused Feasibility Study (Exponent, 1998); and 3) Interim Action Work Plan and Engineering Design Report (Exponent, 1998). These documents are on file at Ecology's Northwest Regional Office (NWRO). This Restrictive Covenant is required because the Remedial Action resulted in residual concentrations of weathered petroleum which exceed the Model Toxics Control Act Method A Residential Cleanup Level for Soil established under WAC 173-340-740. The undersigned, the City of Bremerton, is the fee owner of real property (hereafter "Property") in the County of Kitsap, State of Washington, that is subject to this Restrictive Covenant. The Property is legally described as: That portion of Government Lot 1, Section 13, Township 24 North, Range 1 East, Willamette Meridian, more particularly described as follows: Beginning at a point north of the southwest comer of said Government Lot 1, said point also being the intersection of the easterly right of way of Park Avenue and southerly right of way of * 14th Street; thence easterly along said southerly fight of way of * 14th Street to the intersection of the easterly right of way of Sheldon Boulevard, being the tree point of beginning and also known as point "A"; thence southerly along said easterly right of way to the northerly right of way of 13th Street; thence easterly along said northerly right of way to the intersection of said northerly right of way and the westerly right of way of Highland Avenue; thence northerly along said westerly fight of way to an intersection with the Government Meander line of Smith's Bay; thence continuing northerly along said westerly right of way of Highland Avenue, 105 feet more or less to a point of intersection with a line 50 feet distant, as measured at right angles southeasterly from the centerline of the existing transmission line crossing Dye's Inlet; thence parallel to said transmission line northeasterly to the intersection to the high water line of Smith's Bay; thence westerly and northerly along said high water line to the southerly fight of way of * 14th Street; thence westerly along said southerly right of way of * 14th Street to the easterly right of way of Sheldon Boulevard and the tree point of beginning. Together with that portion of said Government Lot 1 described as follows: Beginning at said point "A", also being the true point of beginning; thence along the easterly edge of an existing asphalt road, North 10004'30'' East 84.24 feet; thence North 22°22'05" East 265.62 feet; thence North 58053'57'' East 77.24 feet; {WJ403606 DOC;I/07877.000001/} thence leaving said easterly edge, North 83°58'19" East 160 feet, more or less to the high water line of Smith's Bay; thence southerly along said high water line to the southerly right of way of said *14th Street; thence westerly along said southerly right of way of * 14th Street to the said easterly right of way of Sheldon Boulevard and the true point of beginning. Together with tidelands. Except for that portion of Block 4, Bayview Addition to the town of Bremerton, as recorded in Volume 2 of plats, page 58, records of Kitsap County, Washington, described as follows: Beginning at the southeast comer of said Block 4 and the true point of beginning; thence west on the original platted northerly right of way of I3th Street 79.15 feet; thence N23°05'15"W-120.I2 feet; thence N52°58'15"E-40.24 feet to the westerly right of way of Highland Avenue; thence southerly along said westerly right of way to the true point of beginning. Together with that portion of I3th Street adjoining the above described parcel, vacated per City of Bremerton Ordinance 828. · Location per Auditor's file #42895 Vol. 58 pg. 376 The City of Bremerton makes the following declaration as to limitations, restrictions, and uses to which the Property may be put and specifies that such declarations shall constitute covenants to run with the land, as provided by law, and shall be binding on all parties and all persons claiming under them, including all current and future owners of any portion of or interest in the Property (hereafter "Owner"). Section 1. Unless authorized by the Interim Action Work Plan, any activity on the Property that may result in the release or exposure to the environment of the contaminated soil that was contained as part of the Remedial Action, or that may create a new exposure pathway, is prohibited without prior written approval from Ecology. Routine maintenance of the cap is authorized without notice to Ecology so long as appropriate health and safety protocols are followed. {WJ403606 DOC;1/07877 000001/} -3- Section 2. Any activity on the Property that may interfere with the integrity of the Remedial Action and continued protection of human health and the environment is prohibited. Development and use of the Property as a municipal recreational park is permitted. Section 3. The Owner of the property must give thirty (30) days' advance written notice to Ecology of the Owner's intent to convey any interest in the Property. No conveyance of title, easement, lease, or other interest in the Property shall be consummated by the Owner without adequate and complete provision for continued monitoring, operation, and maintenance of the Remedial Action. Section 4. The Owner must restrict leases to uses and activities consistent with the Restrictive Covenant and notify all lessees of the restrictions on the use of the Property. Section 5. The Owner must notify and obtain approval from Ecology prior to any use of the Property that is inconsistent with the terms of this Restrictive Covenant and the Interim Action Work Plan. Ecology may approve any inconsistent use only after public notice and comment. Section 6. The Owner shall allow authorized representatives of Ecology the right to enter the Property at reasonable times for the purpose of evaluating the Remedial Action, to take samples, to inspect remedial actions conducted at the property, and to inspect records that are related to the Remedial Action. Section 7. The Owner of the Property reserves the right under WAC 173-340-440 to record an instrument that provides that this Restrictive Covenant shall no longer limit use of the Property { WJ403606.DOC;i/07877 000001/} -4- or be of any further force or effect. However, such an instrument may be recorded only if Ecology. after public notice and opportunity for comment, concurs. DATED this ~day of ~-',-e tg-/'"' . 1999. STATE OF WASHINGTON ) COUNTY OF KITSAP ) I certify that I know or have satisfactory evidence that ~ ~, is the person who appeared before me, and said person acknowl~effged that he/she was authorized to execute the instrument and acknowledged it as ~M~ of the City of Bremcrton to be the free and voluntary act and dee~l of~such party for the uses and pupposes mentioned in this instrument. DATED this~;/~lay of ~f~l:~.,~..~_, 1999. (Print Name"f ' ~,~j,°.~',z_S_20?.',v_.~-~~ My appointment expires: {wJ403606 DOC;1/07877 000001/} -5- ATTACHMENT D The City of Bremerton has identified the following substantive requirements which may be applicable to the remedial actions to be performed under this Agreed Order. CITY OF BREMERTON PERMITS General Requirements Pursuant to the Bremerton Municipal Code ("BMC"), public works projects must conform to "Standard Specifications for Municipal Public Works Construction" (current edition) prepared and published by the Washington State Chapter of the American Public Works Association, including all supplements and appendices that are applicable to this project. This document is on file with the City Clerk and will be specified in the City's construction contract. The City Building Code, as appropriate, may be applicable to certain aspects of the construction phase. The substantive requirements are contained in Chapter 17.04 of the BMC, as modified and amended by other applicable uniform codes. BMC Chapter 17.24 governs construction on Public Property and addresses specific requirements for insurance, bonding, barricades and signs, accident prevention during construction, traffic controls, worker protection, preservation of monuments, care of excavated materials, trenches, property lines, and easements. These requirements will be specified in the City's construction contract. BMC Chapter 21.04 contains the substantive requirements for shoreline development. The City's Shoreline Master Program Plan contains detailed requirements. The City's Shoreline Master Program Plan has an effective date of February 5, 1992. Compliance with these requirements will be specified in the City's construction contract. A right-of-way perrait may be required for sidewalks and parking areas. This will be addressed as part of the bid specification package and will be specified in the City's construction contract. Demolition -- Article 87 UFC -- Section 8706 · Water sprinkler systems in buildings to be demolished will not be disconnected without approval. · A suitable fire hose shall be on site and connected throughout demolition. · Cutting and welding necessary during demolition shall be in accordance with Article 49 UFC. Page 1 · Any rubbish/trash burning on the demolition site must obtain prior approval. · If required by the Fire Chief, fire watch personnel may be required during demolition. · Prior to demolition, sewer capping must be in place (BMC 15.03. 130). Grading · Erosion and sediment controls must be in place for stormwater management (BMC 15.04.042). · Stormwater Best Management Practices (BMPSs) shall be used to control pollution from stormwater. · Construction vehicle access shall be, whenever possible, limited to one route. Access points shall be stabilized with quarry spall or crushed rock. · Soil stabilization shall be by suitable application of BMPSs. From October 1 - April 30, no soils shall remain exposed for more than 2 days. From May 1 - September 30, no soils shall remain exposed for more than 7 days. · A stormwater management plan shall be prepared that includes a schedule for implementing the minimum requirements to the maximum extent practicable (BMC 15.04.042.ii). · The Engineering Department has enforcement authority for UBC Excavation and Grading (BMC 17.04.060(b) and 15.04.042(c)). ,, Connection into the existing stormwater system for drainage requires conformance with the UDCS (BMC 15.04.050 and 17.24.040). · All grading and excavation must be in compliance with the Uniform Building Code, Chapter 33. Asbestos -- The site must be surveyed for asbestos, in accordance with PSAPCA guidelines. The requirements are found in Article 4 (Asbestos Control Standards) of PSAPCA regulations which include: · A summary of the results of the survey posted at the Site, or communicated in writing to all persons who may come in contact with any asbestos-containing material. Page 2 · Necessary asbestos removal must be conducted in a controlled area by persons trained and certified in accordance with the standards established by the Washington State Department of Labor & Industries. · Absorbent asbestos-containing material must be saturated with a liquid wetting agent prior to removal. · Nonabsorbent asbestos-containing material must be continuously coated with a liquid wetting agent prior to and during removal. · Metal components that have internal asbestos-containing material do not need to be saturated with a liquid wetting agent during removal if all access to the asbestos- containing material is sealed. · All asbestos-containing material must be sealed in a leak-tight container as soon as possible after removal but no later than the end of each work shift. · The exterior of each leak-tight container must be free of asbestos warning label as specified by the Washington State Department of Labor & Industries. · Leak-tight containers must not be dropped, thrown, slid or otherwise damaged. · The leak-tight containers must be stored in a controlled area until transported to an approved waste disposal site. · Other asbestos removal methods must first be approved by an AHERA project designer who has evaluated the site, the type of asbestos-containing material involved, the projected work practices, and the engineering controls, and demonstrated to PSAPCA that the planned control method will be equally as effective as the work practices outlined above. · Nonfriable asbestos-containing material may be left in place during demolition of the site if an AHERA project designer has evaluated the site, the type of asbestos-containing material involved, the projected work practices, and the engineering controls, and demonstrates to PSAPCA that the asbestos-containing material will remain nonfriable during all demolition activities and the subsequent disposal of debris. · Asbestos containing waste material must be disposed at a waste disposal site authorized to accept such waste within 10 days of removal. · Waste shipment records much be maintained for at least two years. Page 3 · Article 87 of the UFC -- Section 8707 · Approved signs shall be posted at entrance and egress locations, as well as disposal sites. · Plastic film, if necessary, shall be flame resistant. · Fire Chief shall be notified of asbestos removal 24 hours in advance. Tank Removal -- Tanks taken out of service shall be safeguarded or removed in accordance with Section 7902.1.7.4 of the UFC, and nationally recognized standards. See Section 9003, Standard a.3.9. · Flammable and combustible liquids shall be removed from the tank and connecting piping. · All piping shall be removed unless the Fire Chief determines removal is not practical. Construction -- BMC Code requirements · Parking lot development and standards are listed in BMC 21.02.600. · Class "A" lot requirements shall be adhered to, as well as associated parking lot development standards in section 21.02.6210 (refer to figures 610(a)(b)(c) and figure 630). · Additionally, the following requirements must be followed: A. Bremerton Fire Department Article 9 of the UFC, General Provisions for Safety. This article covers access, water supplies and hydrants, and premise identification. B. City Engineer shall supervise any sidewalk, curb, or driveway on public rights-of-way. STATE LAW PERMITS Water Pollution Control Act (Chapter 90.48 RCW), Surface Water Quality Standards (Chapter 173-201A WAC), State Waste Discharge Program {Chapter 173-216 WAC), and NPDES Permit Program (Chapter 173-320 WAC). NPDES discharge permit requirements for construction projects are exempt for construction projects conducted by a municipality with a population of less than 100,000 (Chapter 173-320 Page 4 WAC), which applies to the City of Bremerton. The Engineering Design Report ("EDR") and the construction contract will address substantive compliance. For example, during remedial and park construction, discharges of storm and surface water into Smith Cove will be mitigated to minimize temporary exceedances of water quality criteria (e.g., turbidity and pH). Construction Projects in State Waters (Chapter 75.20 RCW) and Hydraulic Code Rules (Chapter :220-110 WAC). As specified in the EDR, the ephemeral ditch on the Lofthus property will be filled as part of park construction, although the total effect on Smith Cove from the removal of this ditch is expected to be minimal. A Joint Aquatic Resource Permits Application is not required. During pier removal, should a piling break off, it is required that the remaining parts of the piling be cut off below the mud level and pea gravel put on top of this area. The City's construction contract will specify compliance with these requirements. Washington Clean Air Act (Chapter 70.94 RCW)~ General Regulations for Air Pollution Sources (Chapter 173-400 WAC), and Controls for New Sources of Air Pollution (Chapter 173-460 WAC). The EDR and the City's construction contract address compliance with substantive provisions. As specified in the EDR, the City's construction contractor will mitigate the potential release of contaminants into the air during remediation or construction activities. Page 5 ATTACHMENT E SCHEDULE Implementation of the actions required by the Interim Action Work Plan is scheduled to commence in two phases following completion of public comment. The first phase of the work will be performed in the fall of 1999 and will include demolition of existing aboveground property structures and removal of surface materials such as asphalt in selected areas. The second phase of work, tentatively scheduled for spring/summer 2000, will include removal of USTs, removal of NAPL (if necessary), backfilling and capping of the site, and grading. Following construction of the surface cap, groundwater monitoring and extraction well installation (if necessary) will commence. Groundwater compliance monitoring will then be conducted as described in Appendix F of the Interim Action Work Plan (Attachment B). I WJ403550 DOC;1/07877.000001/} -,::::::, \ j"-"=-' [J \---.- '. \-"'C-'-- , e f\~.,,\<':'__ r: \ l_.\=- :~-- C\ ) -( ! EXponenr ^ ".."...,.,. D"...:......... r\.......U l"'\~vll"1 n.vVU:;YY IJIClIL Interim Action Work Plan and Engineering Design Report Prepared for City ofBremerton 3027 Olympus Drive Bremerton, Washington 98310 Prepared by Exponent 15375 SE 30th Place, Suite 250 Bellevue, Washington 98007 November 1998 Contract No.: 8600A5Q.001 0301 AGENCY REVIEW DRAFT November 2, 1998 CONTENTS Page LIST OF FIGURES IV ACRONYMS AND ABBREVIATIONS V EXECUTIVE SUMMARY VI INTRODUCTION 1 OVERVIEW OF INTERIM ACTION 1 REGULATORY FRAMEWORK 3 ORGANIZATION OF WORK PLAN 4 SITE BACKGROUND 6 SITE LOCATION AND mSTORY 6 SUMMARY OF ENVIRONMENTAL CONDITIONS 7 Soil Groundwater Surface Water Sediments 7 8 8 9 POTENtIAL EXPOSURE SCENARIOS 9 STRATEGY OF INTERIM ACTION 10 Soil Groundwater Surface Water Sediments 11 11 11 12 ii Ilenterpriseldo!:slce5q0301Iiewp.doc AGENCY REVIEW DRAFT November 2, 1998 Page DESCRIPTION OF INTERIM ACTION 13 INTERIM ACTION ELEMENTS 14 General Design Requirements Aboveground Structure Demolition and Removal Underground Tank and Piping Removal Grading and Capping Monitoring and Extraction Well Installation Performance Compliance and Monitoring Plan Operation and Maintenance Plan Institutional Controls 14 14 15 15 16 16 16 16 SCHEDULE 18 REFERENCES 19 APPENDIX A - General Design Requirements APPENDIX B - Aboveground Structure Removal Plan APPENDIX C - Underground Tank and Piping Removal Plan APPENDIX D - Grading and Capping Plan APPENDIX E - Groundwater Monitoring and Extraction Well Installation Plan APPENDIX F - Performance Compliance and Monitoring Plan APPENDIX G - Operation and Maintenance Plan for LNAPL Extraction System APPENDIX H - Institutional Control Plan APPENDIX I - SEPA Checklist iii Ilen~,p,iseldocslce5q030 1 Iiewp.doc . AGENCY REVIEW DRAFT November 2, 1998 LIST OF FIGURES Figure 1. Summary of park development process Figure 2. Evergreen Park Expansion site Figure 3. Historical sampling locations Figure 4. Aboveground site features Figure 5. Belowground site features Figure 6. Proposed extraction and monitoring wells iv IIenrerprlseldocslcIJ5q030 TlilJWp. doc . AGENCY REVIEW DRAFT November 2, 1998 ACRONYMS AND ABBREVIATIONS BTEX City cPAR Ecology FFS IA \VPIEDR LNAPL MTCA NAPL PAR RAO SEPA TPH UST WTPH benzene, toluene, ethylbenzene, and xylenes City ofBremerton carcinogenic polycyclic aromatic hydrocarbon Washington State Department of Ecology focused feasibility study Interim Action Work Plan and Engineering Design Report light, nonaqueous-phase liquid Model Toxics Control Act nonaqueous-phase liquid polycyclic aromatic hydrocarbon remedial action objective State Environmental Policy Act total petroleum hydrocarbon underground storage tank Washington total petroleum hydrocarbon v Ilttntttrp,;seldocslcaSq0301Iiawp.doc AGENCY REVIEW DRAFT November 2, 1998 EXECUTIVE SUMMARY The City of Bremerton (City) is planning to expand Evergreen Park, which is iocated in Kitsap County, Washington. Evergreen Park will be extended around SIPith Cove to pro- vide the public with an improved shoreline recreational facility that overlooks Port Wash- ington Narrows. The land that will be redeveloped is currently mostly vacant land that has been used for industrial purposes since the early 1900s. As a result of the various indus- trial activities, the underlying soil and groundwater have been affected by chemical con- taminants (mostly petroleum products, primarily diesel and heavy oils). This Interim Action Work Plan and Engineering Design Report (IAWPIEDR) has been prepared based on the findings of the Focused Feasibility Study (FFS) (Exponent 1998). The objective of the IA WPIEDR is to ensure the long-term protection of human health and the environment in a recreational setting. This document outlines the general approach to be used for the cleanup, provides detailed work plans for each task of the interim action, and describes how the performance and effectiveness of the interim action will be monitored. Five properties surround Smith Cove: the southern, undeveloped portion of Evergreen Park; the former City Depot; Brem-Air Disposal Company (Brem-Air); the Lofthus site; and Puget Power. Much of the area that may be included in the park expansion was cre- ated from historical filling of Smith Cove dating to the early 1900s. The type, source, and quality of the fill material is not documented, but subsurface investigations have confirmed the presence of non-native sediments and foreign fill materials such as scrap metal, wire, wood chips, and other debris. From the time the shoreline was filled, the properties surrounding Smith Cove have gen- erally been used for industrial purposes. The portion of Evergreen Park addressed in this vi IIenrerpriseldocslcB5q030 1liBWp.doc AGENCY REVIEW DRAFT November 2, 1998 IA WP/EDR has been used primarily for recreation, with the exception of a small garbage incinerator that operated from 1947 to 1968. The City also owns the City Depot prop- erty, which was an automobile maintenance facility from approximately 1947 to 1995. All buildings on the site have been removed; the site is presently unpaved, and 14th Street has been relocated to the southern boundary of the site in anticipation of park expansion and redevelopment. The Brem-Air site surrounds the tip of Smith Cove, and has been used for various industrial purposes since 1911, including petroleum storage and delivery, concrete manufacturing, and steel-box recycling. At present, the site is mostly paved, and has three vacant buildings. The Lofthus property has been used for numerous industrial purposes since 1904, including a lumber yard, bulk fuel storage, and automotive painting operations. Although the Lofthus property is mostly vacant, the site contains two small operating businesses and tank supports for a former fuel aboveground storage tank. Finally, Puget Power housed a substation from 1918 to 1928, and a high-power overhead transmission tower is currently on the site. Shallow soils are a heterogeneous mixture of silt and sand fill material with varying pro- portions of gravel and fill debris. The shallow groundwater surface is generally encoun- tered between ,depths of 3 and 9 ft below ground surface and is affected by the marine tides in Smith Cove that have daily fluctuations of up to 5-10 ft. Groundwater flow directions and gradients at the site have not been established. The FFS was conducted based on the results of the remedial investigation that was per- formed on the upland portion of the five subject properties (Failure 1997). Based on the results from over 100 soil and 35 groundwater analyses, the City believes that the site has been adequately characterized. A conceptual site model has been developed from these analytical results. In general, petroleum hydrocarbons were detected in soil and ground- water in likely historical source areas. In addition, the petroleum hydrocarbons appeared to be aged and weathered, suggesting that in many cases these petroleum fuels have been present in soil and groundwater for an extended period of time. Other compounds, including polycyclic aromatic hydrocarbons, volatile organic compounds, and metals were vii lIenterpriseldocslc..5q030 7 Ii..wp.doc AGENCY REVIEW DRAFT November 2, 1998 detected in only a limited number of samples, which suggests that effects from these chemicals on soil and groundwater are limited. Potential pathways for chemical transport to human and/or ecological receptors include soil, surface water, groundwater, and air. Areas where surface soils are exposed and direct soil contact is possible (e.g., the former tank area on the Lofthus property) repre- sent potentially complete transport pathways. Potential discharges of surface water from the site to Smith Cove include an ephemeral water drainage on Lofthus and a storm water outfall on Brem-Air. Groundwater transport may occur by direct contact of affected soils with groundwater, direct contact of petroleum product (i.e., nonaqueous-phase liquid [NAPL]) with groundwater, infiltration of contaminated leachate to groundwater, and migration of contaminated groundwater from an offsite source. The shallow groundwater at the site does not have a beneficial use as drinking water. The air transport pathway is considered incomplete because the majority of affected soil is covered either by asphalt or blackberry bushes and grass, and because the chemicals of interest at the site generally are not readily volatile. A human health and environmental hazard evaluation was performed to identify those spe- cific chemicals, geographic locations, or environmental media present at the site that could potentially result in adverse effects on exposed human receptors or the environment. Observed site concentrations were compared against standard, readily available benchmark values or were assessed qualitatively for factors for which benchmark values are not avail- able. In applying available benchmark values in the evaluation, several conservative (i.e., protective) elements were incorporated (e.g., benchmark concentrations were compared with the maximum observed site concentrations to provide a "worst-case" indication of potential risks associated with the site). The results of the evaluation indicate that the chemicals present in soil and water at the site have limited potential to pose hazards to human health or the environment. Based on comparisons with standard benchmark con- centrations, potential risks associated with direct contact with soil or chemical migration from soil to groundwater are unlikely to exceed target levels. The nature of the site and viii Ilenterpriseldocslce5q030' lie wp. doc AGENCY REVIEW DRAFT November 2, 1998 its current and planned future use also limit the potential for adverse impacts on ecological receptors, particularly onsite. The opJy potential impact associated with site-related chemicals is the migration of total petroleum hydrocarbons into neighboring surface water, potentially affecting aquatic organisms or generating a sheen on the surface water. Based on comparisons with standard screening levels, the potential for adverse impacts resulting from migration of other individual petroleum hydrocarbon constituents or other chemicals via groundwater into neighboring surface water is negligible. This document is a work plan for implementing the interim actions. To facilitate imple- mentation of the proposed interim actions, the appendices included this work plan contain detailed descriptions of the tasks to be performed. These appendices will be used, along with input from the City on the final park design, to develop final construction and rede- velopment plans. To determine the long-term effectiveness of the interim actions, a per- formance compliance and monitoring plan is included. Interim actions include the following: · Demolish and remove existing buildings and structures · Demolish and remove pier (including pilings and associated piping with potential residual product) that extends from the Lofthus site into Smith Cove · Remove any remaining underground storage tanks that could contain NAPL · Remove NAPL if observed on the groundwater surface during under- ground storage tank removal · Backfill and cap the site with clean, imported soil · Develop cap into ball fields and other park surfaces (e.g., parking lots) ix IIenterpriseldocslce5q030 1 liewp.doc AGENCY REVIEW DRAFT November 2, 1998 · Install institutional controls such as fencing and vegetative barriers along the shoreline to prevent access to Smith Cove · Conduct shallow groundwater monitoring. Following Washington State Department of Ecology and Washington State Attorney Gen- eral review and approval, and the public comment period, remediation and construction of the park will begin. The remediation will be completed in phases and incorporated into the City's schedule for park construction and redevelopment. It is anticipated that reme- diation could be completed by the end of 1999, with long-term groundwater compliance monitoring conducted until 2004. x Ilenrerp,iseldocslce5q030' Vewp.doc , AGENCY REVIEW DRAFT November 2, 1998 INTRODUCTION The City of Bremerton (City) is undertaking an ambitious project to redevelop formerly industrial properties that surround Smith Cove. The goal of the project is to expand Evergreen Park around the cove to provide the public with an improved shoreline park that overlooks Port Washington Narrows. The Evergreen Park Expansion Project pro- vides a unique opportunity for the City and the Washington State Department of Ecology (Ecology) to participate in a model brownfield redevelopment project that meets envi- ronmental cleanup goals and returns the property along the shoreline to a beneficial public use. This Interim Action Work Plan and Engineering Design Report (IAWPIEDR) has been prepared for the Evergreen Park Expansion Project to ensure the long-term protection of human health and the environment in a recreational setting. This document outlines the general approach to be used for the cleanup, provides detailed work plans for each task of the interim action, and describes how the performance and effectiveness of the interim action will be monitored. These elements address the Washington State Model Toxics Control Act (MTCA) cleanup regulations pertaining to interim actions (WAC 173-340- 430 and 173-340-400/410). Detailed information regarding site histories and the rationale for the interim action is provided in the Focused Feasibility Study (FFS) (Exponent 1998). OVERVIEW OF INTERIM ACTION The interim actions outlined in this document will be implemented on the upland portion of the properties that surround Smith Cove. The interim action is one component of a multi-year project that the City has undertaken to address the impacts resulting from past industrial activities at the site. A summary of the park redevelopment process is shown on Figure 1. The City has worked closely with Ecology to develop an appropriate cleanup 1 - Ilenterprise Idocslce5q030 fliewp.doc AGENCY REVIEW DRAFT November 2, 1998 strategy that can be incorporated into park construction and redevelopment. This ~ocu- ment is a work plan for implementing the interim actions, which will focus primarily on mitigating impacts from soil. The interim actions include the following elements: · Demolish and remove existing buildings and structures · Demolish and remove pier (induding pilings and associated piping with potential residual product) that extends from the Lofthus site into Smith Cove · Remove any remaining underground storage tanks (USTs) that could contain residual nonaqueous-phase liquid (NAPL) · Remove NAPL if observed on the groundwater surface during UST removal · Backfill and cap the site with clean, imported soil · Develop cap into ball fields and other park surfaces (e.g., parking lots) · Install institutional controls such as fencing and vegetative barriers along the shoreline to prevent access to Smith Cove · Conduct shallow groundwater monitoring. Following Ecology review and approval and the public comment period, remediation and construction of the park will begin as indicated on Figure 1. The major elements of the interim actions address controlling sources of, and mitigating exposure to, potentially harmful constituents present in onsite soil. To address ground- water, these interim actions outline a long-term monitoring strategy. Installation of monitoring wells to monitor groundwater quality will be postponed until after park con- struction to make more efficient use of the City's limited funds. Ecology has indicated that based on available preliminary data, there is a low likelihood that sediments within 2 Ilenrerpriseldocslca5q030' Iiawp.doc AGENCY REVIEW DRAFT November 2, 1998 Smith Cove have been affected above sediment quality standards (\V AC 173-204); there- fore, no additional investigations or interim actions are planned for Smith Cove. This IA WP/EDR is supported by the findings of the remedial investigation (Failure 1997) and FFS (Exponent 1998). Additional information on environlnental conditions at the site, remedial technology screening, and evaluation of the remedial alternatives is provided in the FFS. REGULA TORY FRAMEWORK This IA WP/EDR has been prepared for the Evergreen Park Expansion project according to conditions stipulated in the Agreed Order between Ecology and the City. The docu- ment addresses interim actions to be completed at the facility to meet the requirements of MTCA Chapter 70. I05D RC\X1. Interim actions at the Evergreen Park Expansion site will be conducted in accordance with WAC 173-303-645 through -680, Ecology MTCA cleanup standards as outlined in WAC 173-340-360 through -410, and the Interim Total Petroleum Hydrocarbon (TPH) Policy (Ecology 1997). Documentation submitted previously to Ecology includes a remedial investigation and FFS. The remedial investigation was performed to meet the requirements of WAC 173- 340-350. Based on the results of the remedial investigation, an FFS was prepared to evaluate and investigate potential cleanup actions in accordance with WAC 173-340-350. A streamlined FFS was conducted because the park expansion site has little complexity in terms of the types of chemical contaminants present, the risk posed by the chemicals of interest, the physical transport pathways, and the potential receptors that may be exposed. To eliminate or significantly reduce pathways of potential migration or exposure associ- ated with historical impacts, a preferred alternative was chosen based on requirements outlined in WAC 173-340. This work plan includes elements of an EDR, construction 3 IIenrerpriseldocslce5q030 7 lie wp. doc . AGENCY REVIEW DRAFT November 2, 1998 plans and specifications, an operations and maintenance plan, and a performance compli- ance and monitoring plan, as outlined in WAC 173-340-400/410. ORGANIZATION OF WORK PLAN This document will be attached to the final Agreed Order to present the technical elements of the agreement between the City, Ecology, and the Washington State Attorney General. The remainder of this document provides a summary of the site and environmental conditions, a description of the interim actions, and a schedule for performance. To facilitate implementation of the proposed interim actions, appendices to this work plan contain detailed descriptions of the tasks to be performed. These appendices are organ- ized as follows: · Appendix A-General Design Requirements · Appendix B-Aboveground Structure Removal Plan · Appendix C-Underground Tank and Piping Removal Plan · Appendix D-Grading and Capping Plan · Appendix E-Groundwater Monitoring and Extraction Well Installa- tion Plan · Appendix F-Performance Compliance and Monitoring Plan · Appendix G-Operation and Maintenance Plan for LNAPL Extraction System · Appendix H-Institutional Control Plan . Appendix I-SEP A Checklist. 4 IIenrerpriseldocslca5q030 I lis wp. doc AGENCY REVIEW DRAFT November 2, 1998 These appendices contain engineering plans and specifications for park construction and redevelopment. Final design, including building (e.g., restroom) and parking surface lay- out, will require further architectural and engineering design. This work plan contains an operations and maintenance plan in Appendix G, which pro- vides procedures for operation ofNAPL extraction wells and maintenance of the cap. A performance compliance and monitoring plan, which provides information on performance compliance and monitoring, data analyses, and reporting schedules to determine the long- term effectiveness of the interim actions, is included in Appendix F. Finally, a State Environmental Policy Act (SEP A) checklist is provided in Appendix I, as required by WAC 197-11. This checklist conforms to guidelines set forth in the SEP A handbook (Ecology 1995). 5 Ilenterprise Idocslco5q030 1liowp.doc . AGENCY REVIEW DRAFT November 2, 1998 SITE BACKGROUND This section provides a brief sumIuary of the expansion site and summarizes the environ- mental conditions and potential exposure scenarios. Detailed information is presented in Environmental Issues to Support the Evergreen Park Expansion Project (Failure 1996), the remedial investigation (Failure 1997), and the FFS (Exponent 1998). SITE LOeA TION AND HISTORY The five expanslOn site properties (Evergreen Park, former City Depot, Brem-Air, Lofthus, and Puget Power) surround Smith Cove, which is located on Port Washington Narrows in Bremerton, Washington (Figure 2). The combined area of the site is approxi- mately 10 acres and the majority of the area has been used for industrial and commercial purposes since the early 1900s. The site is generally inactive and no industrial operations are currently present. Descriptions of each of the five properties and information on historical land use and ownership are presented in the executive summary and in previous reports (Failure 1996, 1997; Exponent 1998). In addition to the five properties that may be included in the park expansion area, various industrial facilities have operated on surrounding neighboring properties, including Chev- ron, Doug's Welding, B&B Services, and Service Fuel Company. These off site properties may have contributed to contamination that has migrated onto the Expansion site properties. 6 IIenterpriseldocslce5qOJO t Iiewp.doc AGENCY REVIEW DRAFT November 2, 1998 SUMMARY OF ENVIRONMENTAL CONDITIONS Numerous investigations have been conducted at the five expansion area properties since 1993 to evaluate the nature and extent of impacts on soil, groundwater, surface water, and sediments, as described in the remedial investigation (Failure 1997) and FFS (Exponent 1998). Based on these investigations, chemicals of interest at the site consist of petroleum hydrocarbon compounds (e.g., gasoline, diesel, benzene), polycyclic aromatic hydro- carbons (PARs), and metals (Exponent 1998). All onsite or immediately adjacent historical sampling locations are shown on Figure 3. Based on data collected from these sampling locations and the previous investigations, the environmental conditions for each medium are discussed below. Soil Based on over 100 soil samples submitted for analysis using standard Washington TPH (WTPH) methods, oil-range hydrocarbons were detected in 90 percent of the soil samples at concentrations ranging from 36 to 8,210 mg/kg. Diesel-range hydrocarbons were pres- ent in 28 percent of the soil samples, with concentrations ranging from 16 to 11,600 mg/kg. In addition to the standard WTPH methods, selected soil samples were also submitted to further quantify TPH concentrations using the interim draft Methods WA-VPH and WA-EPH (Ecology 1997). These results correlate well with the standard WTPH methods, with concentrations in similar hydrocarbon ranges. Results from both methods suggest that areas with higher concentrations of oil- and diesel-range hydrocar- bon compounds generally correlate with areas of historical petroleum fuel use. Gasoline was detected at five sample stations at a maximum concentration of 120 mg/kg. With the exception of xylenes, which were detected at a maximum concentration of 7 I lenterprise Idocslcs5q030 1 liswp.doc AGENCY REVIEW DRAFT November 2, 1998 0.20 mglkg, no other benzene, toluene, ethylbenzene, and xylenes (BTEX) constituents were detected in soil samples. Benzo[a]pyrene and total benzofluoranthenes, which are both carcinogenic PARs (cPAHs), were each detected at one station at a concentration of 1.3 and 0.60 mg/kg, respectively. Methylene cWoride was detected at a maximum concentration of 0.025 mg/kg and cWorinated benzene compounds were detected at concentrations ranging from 0.011 to 0.047 mg/kg. A summary of maximum concentrations for all compounds detected in onsite soil is presented in the FFS (Exponent 1998). Groundwater Groundwater data were collected from temporary well points placed throughout the site, and additional groundwater data will be collected as part of the interim actions. The data indicate that oil-range hydrocarbons are present at two stations at a maximum concentra- tion of 1.06 mgIL, and diesel-range hydrocarbons were detected in three samples at a maximum concentration of 30.8 mg/L. Gasoline-range hydrocarbons were present at three stations with a maximum concentration of 1.9 mgIL. Benzene was detected at a maximum concentration of 0.160 mg/L; no other BTEX components were detected above 0.013 mg/L. No cPAH compounds were detected in groundwater. A summary of maxi- mum concentrations for all compounds detected in groundwater is presented in the FFS (Exponent 1998). Surface Water The only surface water tributary in the expansion area is an unnamed ephemeral ditch leading from the Lofthus site to Smith Cove (Figure 3). The ditch is approximately 2 ft wide and is typically dry. Only one surface water sample has been collected onsite from 8 Ilente,p,;seldocsIcB5q030 lliawp.doc AGENCY REVIEW DRAFT November 2, 1998 the ephemeral tributary located on the Lofthus site. Based on the one sample collected in 1991, TPH was present at 5.8 mg/L. Sediments As discussed previously, sediments in Smith Cove will not be addressed as part of park redevelopment. One sediment sample was collected from the ditch on the Lofthus prop- erty during the remedial investigation in 1997 (Figure 3). Oil-range hydrocarbons were present at 7,000 mg/kg, diesel-range hydrocarbons were undetected (detection limit of 10 mglkg), and gasoline-range hydrocarbons were detected at 15 mglkg. No BTEX con- stituents or P AHs were detected in this sediment sample. POTENTIAL EXPOSURE SCENARIOS Based on the available data, a conceptual transport and fate model was developed as part of the FFS (Exponent 1998) to evaluate potential exposure scenarios. Chemicals of inter- est were identified, site-specific transport mechanisms were described, and potential expo- sure pathways were analyzed. Based on the available site data, the only potentially complete exposure pathways include direct contact with soil, migration from soil to groundwater, migration of groundwater to surface water, and migration from soil to sur- face water. Within the context of potentially complete exposure pathways, detected con- centrations of chemicals of interest in soil and groundwater are compared to standard, readily available benchmark values in the FFS (Exponent 1998). The benchmark values used to screen the site soil data primarily consisted of standard MTCA Method B formula values available for many individual chemicals, including cer- tain individual constituents of TPH. Supplemental procedures for assessing the potential hazards associated with TPH were applied using methods provided in Ecology's Interim 9 IIentefpfiseldocslce5q030 1 u..wp.doc AGENCY REVIEW DRAFT November 2, 1998 TPH Policy (Ecology 1997). Prior to the issuance of Ecology's Interim TPH Policy, the standard MTCA procedures for evaluating the potential hazards associated with direct contact with chemicals in the soil could not be applied to most TPH constituents because of the lack of suitable toxicity factors to include in the relevant equations. The Interim TPH Policy specifies procedures to be used in estimating the potential toxicity and risk of those TPH constituents for which chemical-specific toxicity values are not available. These procedures parallel those applied in the MTCA regulations to assess such risks for other individual chemicals. The potential for chemicals of interest in soil to continue to leach into underlying groundwater was also evaluated using standard MTCA formula val- ues and the Interim TPH Policy. Finally, the potential for groundwater to migrate to sur- face water was evaluated by comparing concentrations of chemicals of interest in groundwater to ambient water quality criteria for chronic (or acute, where chronic criteria were unavailable) exposure to marine organisms. The comparisons presented in the FFS (Exponent 1998) were used to evaluate appropriate interim actions. The potential receptors at the Expansion site are limited to recreational users and ecologi- cal receptors, if any, along the shoreline of Smith Cove. The risks to potential receptors are addressed by the selected interim action. The strategy of the interim action is dis- cussed below. STRATEGY OF INTERIM ACTION The overall objectives of the interim actions are to ensure long-term protection of human health and the environment in a recreational setting. The interim actions are being imple- mented to address chemicals of interest in soil, groundwater, and surface water from his- torical onsite operations. The interim action strategy 1) significantly reduces the mass of chemicals of interest using source removal, 2) eliminates the direct contact exposure pathway using capping, and 3) mitigates impacts on surface water from groundwater using monitoring and potential extraction. Media-specific strategies are addressed below. 10 Ilenterpriseldocslca5q030' Ii. wp.doc AGENCY REVIEW DRAFT November 2, 1998 Soil Although the highest concentration of oii-range petroleum hydrocarbons) which are the predominant chemicals of interest) is 8)210 mg/kg) no corrective actions are required based on methodologies for evaluation of toxicity and risk presented in the Interim TPH Policy (Ecology 1997). However) the City will mitigate potential exposure to affected soils by eliminating the direct contact pathway in areas of the park associated with the. highest concentrations of chemicals of interest. Constructing a cap over the soils with the highest petroleum hydrocarbon concentrations will eliminate this pathway. To prevent future migration of chemicals from the soil to the underlying groundwater) major sources will be removed and infiltration through the cap will be minimized. Groundwater Preliminary data indicate that groundwater is affected by TPH at levels that may exceed applicable target criteria for groundwater that discharges to surface water. To address these chemicals) product sources will be removed and the groundwater will be monitored over the next 5 years to determine if additional actions are required. Surface Water Placement of the soil cap over the unnamed ditch will minimize the potential for chemicals of interest in soil to reach surface water. As part of the cap design, storm water will be diverted toward Sheldon Boulevard so that surface water runoff will not reach Smith Cove. In addition, mitigation actions taken to address the groundwater pathway will also benefit surface water quality in Smith Cove where groundwater discharges into the cove. 11 IIenterpriseldocslcIJ5q030 1 IiBwp.doc ~i AGENCY REVIEW DRAFT November 2, 1998 Sediments The sediments in the unnamed ditch will be addressed as surface soils. The placement of the cap wiii mitigate direct exposure to the sediments and eliminate this pathway. '" )' ,J 12 IlenrerpriS8ldocslce5q030 1 Uewp.doc AGENCY REVIEW DRAFT November 2, 1998 DESCRIPTiOt~ OF INTERIM ACTION - Specific remedial action objectives (RAOs) for the interim action were developed in the FFS based on the requirements for establishment of cleanup standards (WAC 173-340- 700), the nature and extent of chemicals of interest at the site, and the conceptual fate and transport model. The RAOs include the following: · Remove the product source (light, nonaqueous-phase liquid [LNAPL]), if present, to reduce petroleum hydrocarbon mass and mitigate direct contributions to groundwater and subsequent impacts on potential ecological receptors in surface water. · Prevent groundwater from causing sheen on adjacent surface water. This qualitative goal will be supplemented as recommended by Ecology by use of concentrations of 1 mgIL for gasoline-range petroleum hydrocarbons and 10 mgIL for diesel-range petroleum hydrocarbons (values that Ecology has identified as discharge concentrations that it believes are protective of aquatic species) as a means of assessing potential site impacts on surface water. · Eliminate potential for direct contact with soil and ditch sediments, reduce adverse aesthetic impacts on soil, and reduce infiltration of pre- cipitation through soil. The specific interim actions designed to meet the project-specific RAOs are discussed in the following section. If monitoring indicates that the interim actions are inadequate, the remedial strategy will be reassessed in consultation with Ecology. 13 Ilente'p,iseldocslce5q030 Iliewp.doc AGENCY REVIEW DRAFT November 2, 1998 INTERIM ACTION ELEMENTS This section includes a brief description of each major component of the interim action. Detailed work plans that outline performance and design criteria are provided in the !lnnAnrl~,"",Cu." lI,4.yt' v....l.u,.1 ""''''.,;;). General Design Requirements All activities associated with park construction and redevelopment will be conducted in compliance with all applicable federal, state, and local laws, regulations, and other stan- dards, as outlined in Appendix A. The selected construction contractor will also be responsible for materials and equipment, health and safety, site control and decontamination, sampling and analysis, recordkeeping and reporting, and site manage- ment, as outlined in Appendix A. Aboveground Structure Demolition and Removal Aboveground structures, concrete retaining walls, and the pier (with associated piping that may contain product/NAPL) extending from the Lofthus site into Smith Cove will be removed as part of remediation and site development (Figure 4). Details of these tasks are included in Appendix B. Prior to demolition, an asbestos survey will be performed and asbestos exposure will be abated, as necessary, in onsite buildings to mitigate worker exposure during demolition. Other surface features, such as building foundations and the wash pad area, may be left undisturbed. Areas of existing pavement are expected to be removed. Clean, solid materials from the demolition may be used as onsite fill. 14 IIenterpriseldocslce5q030 TliBWp.doc AGENCY REVIEW DRAFT November 2, 1998 Underground Tank and Piping Removal As detailed in Appendix C, underground structures and piping associated with historical fueling activities or storm water drainage will be removed and/or plugged as part of reme- . diation and site deveiopment. This includes but is not necessarily limited to USTs and ancillary piping at two locations on the Brem-Air property, including a storm water discharge pipe and catch basins (Figure 5). Once the tanks have been removed, excava- tion of the residual soil will be limited and soil samples will be collected and analyzed to determine residual concentrations of petroleum hydrocarbons. These data will be used to confirm that residual soil concentrations of petroleum hydrocarbons do not change assumptions used for the hazard evaluation, and that the interim action meets the project RAGs (i.e., mitigate product contributions to groundwater and subsequent impacts on potential receptors in surface water). Grading and Capping A soil cap will be constructed as described in Appendix D. The soil cap will be a mini- mum of 12 in thick. Some areas of the site will exceed the minimum thickness of 12 in. because of the difference between the existing topography and final park design contours. New asphalt paving will be incorporated as parking areas for recreational users, and in other areas not requiring a soil cap, a vegetative surface cover will be established. Storm water will be directed away from Smith Cove into the existing municipal storm water sys- tem located along Sheldon Boulevard. Erosion of the cap surface in the vicinity of Smith , Cove will be minimized using institutional controls, including fencing and bank stabiliza- tion measures as described in Appendix H. 15 lIenterpr;seldocslcs5q030 7 lis wp.rioc AGENCY REVIEW DRAFT November 2, 1998 Monitoring and Extraction Well Installation Up to eight monitoring wells and up to four extraction wells (if needed) will be installed after the soil cap is constructed (Figure 6). The number and placement of extraction wells will be deterrrtined in consuitation with Ecology based on subsurface conditions observed during underground structure removal activities. As detailed in Appendix E, the wells will be constructed by a Washington-licensed monitoring well installer under the supervision of a City representative in accordance with all applicable State of Washington well con- struction rules (WAC 173-160). Performance Compliance and Monitoring Plan The groundwater monitoring program is designed to provide data on the groundwater flow system, chemical characteristics of groundwater at the point of compliance, and the representativeness of groundwater samples collected at point-of-compliance wells. Appendix F contains a summary of the groundwater program and detailed sampling and analysis procedures. Operation and Maintenance Plan Specifics regarding operation and/or maintenance of the LNAPL extraction system and the cap surface are presented in Appendix G. These activities will be performed by the City or its representative. Institutional Controls Institutional controls will be implemented for the redeveloped portion of the site to mini- mize potential worker and public exposure to the chemicals of interest. These controls 16 IIenterpriseldocslca5q030 1 liswp.doc AGENCY REVIEW DRAFT November 2, 1998 include fencing and vegetation along the shoreline to prevent access to Smith Cove and bank stabilization measures to prevent shoreline erosion. Site restrictions for the redevel- oped park property are addressed in detail in Appendix H. 17 Ilenterpriseldocslc"Sql}3D t Ii" wp.doc , AGENCY REVIEW DRAFT November 2, 1998 SCHEDULE Following Ecology and Washington State Attorney Generai review and approval, and the public comment period, remediation and construction of the park will begin. The reme- diation will be completed in phases and incorporated with the City's schedule for park construction and redevelopment. Implementation of the interim actions is tentatively scheduled to commence III spnng 1999, depending on negotiations with the state and the outcome of public comment. Tbis activity will include demolition of property structures; removal of USTs; removal of NAPL (if necessary); backfilling and capping of the site with clean, imported soil; devel- opment of the capped area into ball fields and other park surfaces (e.g., parking lots); and grading of the property. Institutional controls will then be placed along the shoreline of Smith Cove. After the surface cap is in place, monitoring and extraction well installation (if necessary) will commence. It is anticipated that remediation could be complete by the end of 1999, with groundwater compliance monitoring conducted until 2004. The City will consult with Ecology to determine the adequacy of the monitoring period. 18 IIenterpriseldocslce5q030 Iliewp.doc AGENCY REVIEW DRAFT November 2, 1998 REFERENCES Eco!ogy.1995. State Environrnental Policy Act Handbook. Washington State Depart- ment of Ecology, Olympia, W A. Ecology. 1997. Interim interpretive and policy statement: cleanup of total petroleum hydrocarbons. Ecology Publication No. ECY97-600. Washington State Department of Ecology, Olympia, W A. Exponent. 1998. Focused feasibility study, Evergreen Park Expansion Project. Prepared for the City ofBremerton. Exponent, Bellevue, W A. Failure. 1996. Draft environmental information to support proposed Evergreen Park expansion project. Prepared for the City of Bremerton in conjunction with PTI Environ- mental Services. Failure Analysis Associates, Bremerton, W A. Failure. 1997. Remedial investigation report, Evergreen Park expansion project, Bremerton, Washington. Prepared for the City of Bremerton in conjunction with PII Environmental Services. Failure Analysis Associates, Bremerton, W A. 19 IIenterpriseldocslce5q030 lliewp.doc l Flg-ure_s--- _ _ - _ _ - _ _ i 1- Summary of Available Historical Data (February 1996) Sampling for Phase I Park Expansion (July-December 1996) No Further Action for Phase I Park Expansion (October 1996) Remedial Investigation for Phase II Park Expansion (July 1997) Focused Feasibility Study (November 1998) Interim Action Workplan and Engineering Design Report (November 1998) Agreed Order between Ecology I City of Bremerton (anticipated winter 1998-1999) Public Comment Period (anticipated winter 1998-1999) Approval of Final Focused Feasibility Study and Interim Action Work Planl Engineering Design Report (anticipated winter 1998-1999) Installation of Groundwater Monitoring Network (anticipated summer 1999) Implementation of Interim Action (anticipated spring 1999) Groundwater Monitoring Period (anticipated post-construction) Performance Monitoring Period (anticipated post-construction) Figure 1. Summary of park development process. BREMVAWPI8600ASO. 001. 030 1 11102/9B WA ~ JJ ^ ~ m z c m ..---- 14th STREET (fOrmer) ----~._- Former City Depot ~-D . , \ l,f lif /.~ ,Q: . , I Puget : Power ~\ Site \, \, Lofthus Site c::~ , , L_____ LJ .~ :!:: o ^ m z N m ~ m z c m ~ SHELDON BLVD/13TH STREET i~~---: 0_--1 mz ,I 1__1 Cl )> r r 2" ~~ me) z- c::!! me) , . ________.-J , ./'" LEGEND ---- Extent of ownership, not necessarily individual parcels c:=J Existing aboveground building or structure :::::::: Belowground structure -.- Limits of Expansion site Source: Street locations and proper!Y. boundaries were taken from the 1991 Kltsap County Tax Assessors plat map. Site usage and ownership were compiled from Kitsap County Tax Assessor records, aerial photographs. Sanborn Mapping and Geographical Information Service, and Woodward-Clyde (1993). ~o 60 120 I feet Figure 2. Evergreen Park Expansion site. BREMI/AWP\8600ASQ.OOI.0301 10120/98 WA ~ :D ^ ~ m z c m Evergreen Park Site [j] EP-01 14th STREET (former) . EP-03 CB-02 . D Approximate . S[ocation of BA-01 ubmarine . UST: Tender Unknown Size __ (unconfirmed) and Contents ~ ~ BA-02 /\ . BA-03 0 [j]/ ,,'/ B-1 '",,'/ . CB-01 Former City Depot 14th STREET (current) , , L_____ . If Lofthus :ALF~P Sil. I ' Former : AST Area I , , I R&H rTt~ , Bremerton ! LF-01 Amusement , . Company l>o~rem~Airl 'ITll>"U CJ ~ 0 Parking' < l> ZG) u-1' ;..--.----- mo c~ E:n n_'U___ mz '! mO ,./ [j] LF-06 Former Chevron Site Residential s: o ^ m z ~ m ~ m z c m l>j' Residential I~, -.J -------- LEGEND Extent of ownership, not necessarily individual parcels EPSED01. Sediment samples (1996) SED.1 A. Sediment samples (1993) o Soil boreholes/test pits (1995) . RI soil sampling location (1997) [j] RI groundwater sampling location (1997) c::J Existing aboveground building or structure :::::::: Belowground structure Source: Street locations and prope~ boundaries were taken from the 1991 Kltsap County Tax Assessors plat map. Site usage and ownership were compiled from Kitsap County Tax Assessor records, aerial photographs, Sanborn Mapping and Geographical Information Service, and Woodward-Clyde (1993). ~o 60 120 I feet Figure 3. Historical sampling locations. BREMIIAWP\8600A50.00r.OJOI 10120198 WA i f r= ! J i- 14th STREET (former) Former City Depot 14th STREET (current) I u u____JJ , I , , I , . I , ,-------- , , I , , I ~ :II ^ ~ m z c m , . Lu___ s: o ^ m z N m ~ m z c m "> r r m .:S 0--- I ~~ m(') z- c:!! m(') 0___ ~8 m(j) ~~ mz , ---j -----_ -.J LEGEND ---- Extent of ownership, not necessarily individual parc~ls [==:J Existing aboveground building or structure _ Paved areas (limits approximate) Source: Street locations and prope~ boundaries were taken from the 1991 Kltsap County Tax Assessors plat map. Site usage and ownership were compiled from Kitsap County Tax Assessor records, aerial photographs, Sanborn Mapping and Geographical Information Service, and Woodward-Clyde (1993). ~o 60 120 , feet Figure 4. Aboveground structures and existing paved areas. BREMlFAWP\86()()A50.001.0301 10120198 WA 14th STREET (former) ------- Former City Depot 14tn STREET (current) UST: Unknown Size ~ ~ and Contents ~ ~ -----------' . I , , I , , I , ,-------- , , I , , I ~ JJ ^ ~ m z c m ,.--, , , , , , ' , " , , , , , , , , , , , , , , , , , , .... .... r"-" "t" UST: ____I " " 8,000 gal '.-' Diesel Approximate Location of Submarine L_____ s:: o ^ m z N ffi ~ m z c m , Evergreen Park Site Approximate location of Submarine Tender (unconfirmed) ('::::> " 4 USTs: 4,000 gal [Unleaded ~~_:_: ~ ~asoline .... r:.":":" \ I~ Ii: ,,~ /Q: IS> ~. /::i- ,.~.; . , I , , I : Puget \. Power Former Chevron Site , \ Lofthus Site , \ \' , , \ , , \ \ ,/ ,'/ SHELDON BLVD/13TH STREET :> r r I , r-------- I ~8 mG) ~~ mz ~~ me) z- c:!! me) --______-.J ---j ,/ LEGEND Extent of ownership, not necessarily individual parcels :::::::: Belowground structure Source: Street locations and proper!Y. boundaries were taken from the 1991 Kitsap County Tax Assessors plat map. Site usage and ownership were compiled from Kitsap County Tax Assessor records, aerial photographs, Sanborn Mapping and Geographical Information Service, and Woodward-Clyde (1993). ~o 60 120 , feet Figure 5. Belowground site features. BREMIIAWP\8600ASQ.OOI.0301 '0/20198 WA ) ( -- Evergreen Park Site 14th STREET _ _ J.former) _ _ · MW-1 ~-D ' , Former. City Depot .A MW-8 ~ :0 ^ ~ m z c m , I~ l~ ';j It! Lofthus I Site I If :~ "P lU ~-2 I , 10 Former Chevron Site .:,: :~ , , I Puget i Power \ Site , '\ , , \ MW-7 ~,( \~<\ \. \\.\ \ ~Q '. ~<z \ ~ SHELDON BLVDI1'THD~~tV'~ 1-~ 1'1- \~:;>. ./' L_____ [] L s: n ^ m z N ffi ~ m z c m ~I - I l:8~ ! iD ~~ , , (----1 ----____-.-3 ~~ ---j mo z- c:!l . mz ' mO -- LEGEND . Monitoring well @ Extraction well ~ Existing aboveground building or structure :::::::: Belowground structure Extent of ownership, not necessarily individual parcels Source: Street locations and prope~ boundaries were taken from the 1991 Kitsap County Tax Assessors plat map. Site usage and ownership were compiled from Kitsap County Tax Assessor records, aerial photographs, Sanborn Mapping and Geographical Information Service, and Woodward-Clyde (1993). ~o 60 120 I feet Figure 6. Proposed extraction and monitoring wells. 8REMI/AWPI8600ASQ.OO1.0301 !(}21l198 WA .~. ~ppe~~ix A . ". :.' ,_-' _ __ - ..- General Design Requirements AGENCY REVIEW DRAFT November 2, 1998 - GENERAL DESIGN REQUIREMENTS The Contractor shall follow all of the requirements presented in this appendix for all park construction and redevelopment activities. LAWS, REGULATIONS, AND STANDARDS The work conducted shall conform to all applicable state, federal, and local laws, regula- tions, and other standards. The Contractor shall maintain current licenses and certifica- tions necessary by all applicable laws and regulations to complete the work as specified in this plan. Applicable laws, regulations, and standards include, but are not limited to, the following: · Occupational Safety and Health Administration (OSHA) standards for Hazardous Waste Operations and Emergency Response · The U.S. Department of Transportation standards for transport of materials including hazardous materials · Uniform Fire Code · Uniform Mechanical Code · Uniform Building Code. The Contractor (with the approval of the City of Bremerton [City]) will identify and obtain all necessary permits or ensure substantive compliance with applicable permit requirements. A-1 g:IC6Sq030Tli6WP6PpS.doc AGENCY REVIEW DRAFT November 2, 1998 MATERIALS AND EQUIPMENT The Contractor shall provide all equipment and materials required to conduct all of the construction and redevelopment work identified in this plan for the Contractor. The Contractor shall be responsible for providing personal protective equipment for its employees as described below. SITE HEALTH AND SAFETY PLAN The site contains hazardous substances; therefore, work at the site that involves potential contact with the hazardous substances requires the use of an OSHA health and safety- trained crew. In addition, the Contractor must comply with other applicable OSHA and State of Washington health a..'1d safety regulations. The Contractor shall prepare a site-specific health and safety plan that addresses chemical and physical hazards likely to be encountered during site remedial activities. The plan is to be followed at all times by the Contractor's employees for all work elements con- ducted under this cleanup plan. The Contractor's site health and safety plan shall include procedures for safe work practices that will minimize workers' risk from physical activi- ties and exposure to site chemicals of interest. Although the Contractor will be encour- aged to follow proper health and safety procedures, neither the City nor their representative shall be responsible for the Contractor's adherence to the site health and safety plan or proper health and safety precautions for workers when performing work under this cleanup plan. Prior to beginning work, the Contractor shall provide written documentation of training and medical surveillance in compliance with 29 CFR 1910.120 and 1910.134, as well as copies of current 40-hour training and 8-hour refresher certification of the personnel to be used onsite. The Contractor will be responsible for providing the necessary safety equipment for their employees prior to entering the site. A-2 I j 1l:lclI5q0307IillwpllppS.rJoC AGENCY REVIEW DRAFT November 2, 1998 SITE CONTROL AND DECONTAMINATION The Contractor shall establish appropriate site control measures to prevent the spread of contamination throughout the site or offsite and to control access to the site. The Con- tractor shall establish the exclusion zone(s) (i.e., the contaminated area), contamination reduction zone(s) (i.e., the area where decontamination takes place), and the support zone(s) (i.e., the uncontaminated area where workers should not be exposed to hazardous conditions). Personnel and equipment that have come into contact with contaminated material at the site shall be decontaminated prior to entering any support zone or leaving the site. The Contractor shall establish appropriate decontamination procedures and con- struct a decontamination pad, as needed. All decontamination liquids, personal protective equipment (e.g., protective clothing), and similar material generated during decontami- nation activities shall be properly managed and disposed of. SAMPLING AND ANALYSIS Sampling and analysis of soil, groundwater, or other media, as necessary, will be con- ducted in accordance with U.S. Environmental Protection Agency (EP A) SW-846 methods and procedures, and other approved EP A or Washington State Department of Ecology (Ecology) methods, as needed. This includes, but is not limited to, conformance with the following protocols: · Use of proper sample collection procedures. II Use of proper sample containers, labels, and preservation techniques. · Adherence to strict quality assurance and quality control (QNQC) procedures in the field and at the laboratory to ensure representative sampling. This includes but is not limited to requirements for sample A-3 g: I.,.Sq030' lis wpspps.doc AGENCY REVIEW DRAFT November 2, 1998 holding times, analytical detection limits, and the collection and review of QA/QC field and laboratory samples. ,. Use of proper chain-of-custody forms and procedures. RECORD KEEPING AND REPORTING The Contractor shall maintain and submit records to document the work performed. These record and submittal requirements include, but are not limited to, the following: · Daily Activity Log-A daily activity log shaH be completed to describe general site activity and personnel working onsite. These records shaH be completed daily and provided to the onsite City representative weekly and may be used to substantiate biHings invoiced. ,. Health and Safety Log-A daily record of the personnel onsite and the health and safety levels worked by task shaH be maintained. Results of field health and safety monitoring shaH be documented in the health and safety log. These records shaH be maintained daily and provided to the onsite City representative weekly. ,. Material Transfer Log-A daily log of material transferred offsite shaH be kept. AH receipts from landfiHs or other transfer or disposal facilities shall be kept. These records shaH be maintained daily and provided to the onsite City representative weekly. In addition to the above records, onsite City representatives will maintain a daily activity log and complete records of aH samples coHected. A-4 g:lca5q030T liBwpapp:s.doc AGENCY REVIEW DRAFT November 2, 1998 SiTE MANAGEMENT The Contractor shall keep the work area orderly and clean at all times. The Contractor shall pick up and properly dispose of all trash and debris related to the work perfurmed under this cleanup plan. Trash shall be picked up on a daily basis. The Contractor shall provide adequate containers, as needed, for the temporary storage of all trash and waste material generated onsite. Upon completion of the work, the Contractor shall remove all job-related equipment (decontaminated as necessary), waste, and trash from the site. The Contractor shall implement dust control and surface water runoff controls at the site at all times as needed during construction. Dust suppressants other than water must be approved in advance by the City and Ecology. A-5 g:lc..5q0301Ii..wp"PPs.doC :'~:AppeQ:di,i'EF7 '>,. ,'':'~ '~- -. ' ~-_ , ~ ~ ,( 1 -;. , " l'~ ___, _ _ Aboveground Structure Removal Plan AGENCY REVIEW DRAFT November 2, 1998 ABOVEGROUND STRUCTURE REMOVAL PLAN The requirements presented in this appendix apply to demolishing, removing, and dis- posing of the aboveground structures at the site. The aboveground structures include, but are not necessarily limited to, the following: . Former All In One Boating building . Paper warehouse building II Former Brem-Air office building II Fuel island for underground storage tanks (USTs) . R&H Automotive building · Bremerton Amusement Company building · Retaining wall for the former aboveground storage tank area · Pier extending from the Lofthus site into Smith Cove. The locations of these structures are shown on Figure 4 in the main text. Prior to removal of buildings, an asbestos survey will be conducted. If the survey identi- fies asbestos to be present in any of the structures scheduled for removal, the asbestos abatement will be performed according to all applicable laws, regulations, and standards. The Contractor will be responsible for meeting substantive worker health and safety requirements under PSAPCA. Prior to demolishing the aboveground structures, the Contractor shall meet with the City of Bremerton (City) representative to discuss and verify the specific structures to be demolished; the approach for separating clean solid material from other demolition B-1 1/: Ic.5q030 1 Ii. wp.pps. doc AGENCY REVIEW DRAFT November 2, 1998 debris; and the concrete slabs and/or footings that will be left in place. The Contractor shall demolish the aboveground stmctures to the concrete slabs-on-grade and/or the con- crete footings. The Contractor shall separate the clean solid materials (e.g., concrete, cinder blocks, bricks) that will be used as onsite fill from the other demolition material. The type and extent of material separation will be as agreed upon with the City prior to demolishing the structures. The Contractor shall stockpile the separated clean solid mate- rial at an onsite location approved by the City. The Contractor shall remove all remain- ing demolished material from the slabs, footings, and ground surface. Once the buildings have been demolished, sampling will be conducted to determine if chemicals of interest are pn:sent at concentrations of concern. The Contractor shall demolish and remove the former fuel transfer pier extending from the former Lofthus site into Smith Cove. The associated piping will be drained of any product/water that it may contain in such a fashion as to minimize the risk of its release into the environment. The product/water will be contained and properly disposed of according to all applicable laws and regulations. The pier pilings will be demolished and removed completely, if feasible. If it is not feasible to remove each piling entirely, the pilings will be demolished and removed in such a fashion as to not present a hazard dur- ing low-water periods. Prior to conducting any off site hauling or disposal of material, the Contractor shall iden- tify the haul route and licensed offsite disposal facility and obtain approval from the City. The Contractor shall load, haul, and dispose of the material at the designated facility. The Contractor shall provide all landfill receipts to the City to substantiate proper dis- posal of the material. B-2 g:lcs5q030 I lis wpspps. doc ~::~r;en(lix C'. .: . '-, ,', - , - . !~} - "'~ . ~ : -. ',~ ~ - Underground Tank and Piping Removal Plan AGENCY REVIEW DRAFT November 2, 1998 UNDERGROUND TANK AND PIPING REMOVAL PLAN - - The requirements presented in this appendix apply to removing and/or plugging of underground structures on the site. This will include but is not necessarily limited to the following underground structures: · Underground storage tanks (USTs) and associated ancillary piping at the UST and fuel island area on the Brem-Air site (includes four 4,OOO-gal unleaded gasoline USTs and one 8,OOO-gal diesel UST) ,- · One UST and associated ancillary piping of unknown size and con- tents located on the Brem-Airsite at the former All In One Boating building · The Smith Cove storm water discharge pipe and the catch basins asso- ciated with the outfall. The locations of these underground structures are shown on Figure 5 in the main text. REMOVAL OF USTs AND ANCILLARY PIPING A pre-construction conference will be held prior to initiating removal actions. The con- ference will consist of a brief review of health and safety procedures, limits of excava- tions, procedures for stockpiling soil onsite, procedures for excavation and removal of UST systems (including associated ancillary UST piping), and offsite disposal of con- taminated soil (if necessary). The Contractor will arrange for the underground utilities to be located and marked prior to excavation at the site. The UST and surrounding soil will be excavated to a depth no greater than approximately 10-12 ft below ground surface, or approximately 2 ft below C-1 fI:lc~5q030 Ili~wp~pps.doc ~ "1 AGENCY REVIEW DRAFT November 2, 1998 the level of the UST bottom and no more than 2 ft beyond the ends and sides of the tank. Each UST excavation will be limited to an area approximately 20 x 20 ft (or approxi- mately 200 yd3 bank-cut volume of soil). Only the UST system, which includes ancillary piping (piping associated with the UST system), will be removed. Any additional piping encountered during excavation that is not associated with the UST system will be left in place after being capped in such a manner that no liquids can drain from it. The Contractor will adhere to all applicable laws, regulations, and standards as addressed in Appendix A (General Design Requirements) while conducting the following UST decommissioning activities: . Excavation · Preparation of the UST for removal from the excavation . Cleaning of the UST · Purging of flammable vapors · Air monitoring (of both the tank atmosphere and the excavation area) I!I Removal of the UST from the excavation II Labeling of the UST · Offsite transport and disposal of the UST and petroleum hydrocarbon- affected soil (if any). EXCAVATION AND SAMPLING The Contractor will first expose the top and sides of the tank. A City ofBremerton (City) representative will field-screen all excavated soil for petroleum hydrocarbons using vis- ual, vapor headspace, and/or sheen testing to determine whether petroleum hydrocarbons are present in the soil. Excavated soil suspected of being affected by petroleum C-2 l/:lca5q030 1 lia wpapps. doc AGENC'( REVIEW DRAFT November 2, 1998 hydrocarbons based on field screening will be segregated from clean soil and placed in separate soil piles. The excavated soil will be removed and stored on a plastic-covered area with berms. At the end of each work day, all suspected petroleum hydrocarbon- affected soil will be covered with plastic, and the plastic weighted. Excavations and excavated soil will be fenced off with construction fencing until all UST removal activities are concluded. After further excavation, the tank will be lifted from the pit and placed on the ground sur- face. The tank will be inspected for signs of corrosion. If soil contamination is observed or if field screening of soil indicates the presence of petroleum hydrocarbon chemicals, a limited amount of additional excavation will be performed to determine the extent of the contamination. The Contractor will excavate beneath the old tank location to a depth of no more than 2 ft beyond the estimated bottom, sides, and ends of the UST. If ground- water entering the excavation is observed to have light, nonaqueous-phase liquid (LNAPL) on the water's surface, it will be removed as outlined below. To determine residual concentrations of petroleum hydrocarbons, soil samples will be collected from two sides of the excavation within 6 in. above the water level (if water is present) in the excavation, and one sample will be collected from beneath the old UST (for a total of three samples from the excavation). Ifmultiple tanks (such as from a mani- folded UST system) are being removed from a single excavation pit, one additional sam- ple will be collected from the sidewall of each additional tank being removed (i.e., a minimum of four samples for two tanks, five samples for three tanks). In addition, one composite soil sample (i.e., three representative grab samples will be homogenized into one composite sample) from the material excavated from the pit will also be collected for analysis to determine appropriate disposal options. The piping run associated with the islandlUST system will be sampled after excavation and pipe removal by collecting one soil sample approximately every 50 ft of piping along the length of the piping run. Locations of all soil sample collection points within the excavation(s) will be field- mapped by a City representative. All sampling equipment will be decontaminated prior C-3 g:lca5q030 lliswpspps.doc AGENCY REVIEW DRAFT November 2, 1998 to use. Soil samples will be collected from the middle of the excavator's bucket. Imme- diately prior to sampling, approximately 6 in. of soil will be scraped away from a rela- tively undisturbed portion of soil in the central portion of the bucket. All samples will be collected by hand with a decontaminated stainless-steel spoon or scoop while wearing new disposable gloves, and placed in clearl laboratory-provided containers. Sample con- tainers will be stored in a cooler with ice for delivery to the laboratory for analysis. Each container will be labeled with the date, unique sample number, project number, and description of sample type and location. A chain-of-custody form will be completed and will accompany the containers in their delivery to the laboratory for analysis of the samples. All samples submitted for laboratory analysis will be analyzed for total petroleum hydro- carbons (TPH) using Washington State Department of Ecology (Ecology) Interim TPH Policy Methods WA-EPH for extractable petroleum hydrocarbons and WA-VPH for volatile petroleum hydrocarbons. Ecology analytical Methods NWTPH-G/BTEX and NWTPH-D Extended will be included, as applicable. BACKFILLING THE EXCAVATION AND SOIL HANDLING The Contractor shall backfill the pit with clean imported gravel to a level I ft above the water table. Clean imported gravel or clean soil from the UST excavation will be used for backfill from the top of the water table to the surface. Replacement or disposal options for the contaminated soil will be contingent upon analytical results, in consulta- tion with Ecology. The excavated area will be brought up to grade. LNAPL REMOVAL If LNAPL is observed in the UST excavation, groundwater and LNAPL will be pumped out of the excavation into a temporary polyethylene storage tank provided by the C-4 g:lc.5q030 Ili.wpspps.doc AGENCY REVIEW DRAFT November 2, 1998 Contractor. After pumping, the excavation will be allowed to fill with water a second time. If LNA.PL is present on the water surface, the excavation will be pumped out once again, after which LNAPL recovery from this excavation will cease. Any remaining LNAPL will be addressed by the LNAPL extraction program (Appendix G-Operation and /itfaintenance Plan for Ll'lAPL Extraction System). \V-hen the polyethylene tank is filled, groundwater and LNAPL will be removed by vacuum truck, transported, and disposed of at a treatment/recycling facility according to all applicable state and federal regulations regarding handling, transport, and disposal of the waste material. TANK DISPOSAL The scrap UST and any contalninated soil will be treated and/or disposed of according to all applicable state and federal regulations. Copies of disposal or treatment receipts will be provided to the City by the Contractor. FINAL INSPECTION After UST removal activities have been completed, a City representative will conduct a final inspection. The work areas will be inspected and photographed to document that all requirements ofthe City have been met. Inspection of the work site will confirm that the Contractor has backfilled the excavated pit and patched the asphalt (if appropriate) to a level even with the existing surface. Smith Cove Storm Water Outfall and Associated Catch Basins The storm water discharge outfall (Figure 5 in the main text) will be plugged in such a manner as to prevent the flow of liquid out of the end of the discharge pipe at Smith C-5 g:lca5q030'liawpapps.doc AGENC'Y REVIEW DRAFT November 2, 1998 Cove. The storm water catch basins associated with this outfall will be plugged by filling with concrete. C-6 g:It:..5q0307Ii"wPBpps.dOC ~:':.PRe.;di~- D', ,', '. .' . - _ " ' .~ -- -. ~ -- Grading and Capping Plan AGENCY REVIEW DRAFT November 2, 1998 ~ GRADING AND CAPPING PLAN - The requirements presented in this appendix apply to the soil cap for the site. At a mir,j~ mum, the soil cap will cover those areas of the site associated with the southern portion of the Brem-Air property and the Lofthus property. As discussed in the focused feasibil- ity study, the final design may also incorporate placing the soil cap in areas for which the final design plan does not provide parking or paved trails. Existing asphalt surfaces will be removed prior to constructing the soil cap. Prior to constructing the soil cap, the Contractor shall meet with a City of Bremerton --=-----. (City) representative to verify the final construction locations based on the final design of the park. The Contractor shall identify the source(s) of the sand and soil and obtain approval from the City prior to hauling the material onsite and conducting work on the drainage system and cap. The sand shall be free of deleterious material including large stones, have minimal fines, and provide good drainage (e.g., Class SW or SP under the Unified Soil System). The soil shall be capable of supporting vegetation with minor soil amendment. Vegetation and soil amendment requirements will be specified upon com- pletion of the final design of the park. The drainage layer and soil cap shall not be con- structed until the grading and vegetation plan are final to allow for proper surface water runoff and immediate vegetation of the soil cap. The Contractor shall place a uniform layer of sand that shall have a minimum thickness of 3 in. at any location. The Contractor shall place a geotextile fabric over the sand prior to the placement of soil. The geotextile to be used shall be approved by the City prior to installation. Placement of the geotextile strips shall include an overlap of 12 in. on side and end overlaps. The Contractor shall place soil over the area designated by the City. The Contractor shall place the soil in a manner that uses the soil as a working surface for the construction equipment so that the equipment never comes into direct contact with the geotextile. The 0-1 g: les 5110301 lis wpspps. doc AGENCY REVIEW DRAFT November 2, 1998 soil layer shall have a minimum thickness of 12 in. Some areas of the site will exceed the minimum thickness of 12 in. based on the difference between the existing topography and final park design contours. Where needed, site utilities (i.e., for lights a."'1d for water and sewer to support park restrooms) will be installed concurrently with the placement of the ~()11 ('~n ~<;: r1irpf'tp,-l h" th". r;tu ~---'-:-r ~ _.......__..._~ UJ ,,1..1.,"-, '-'.1'-]_ Final grading shall be conducted in accordance with the final park design to minimize ponding of surface water. Surface slopes will be graded to promote surface water runoff toward Sheldon Boulevard such that the existing municipal collection system can receive runoff and route the runoff to storm sewers. 0-2 1/:lcsSq030 Tliswpspps.doc if" -. - ,'- - . - " --- f~:~Apr.u!nd~~..E .' . - ~ . ." .," . . _ ' .' - '- ' , <- , .. ..' - Groundwater Monitoring and Extraction Well Installation Plan AGENCY REVIEW DRAFT November 2, 1998 GROUNDWATER MONITORING AND EXTRACTION WELL INSTALLATION PLAN The requirements presented in this appendix include the specific procedures for drilling, installation, and development of groundwater monitoring/light, nonaqueous-phase liquid (LNAPL) extraction wells. Well construction activity will commence after the soil cap is constructed. The wells will be constructed by a Washington-licensed monitoring well installer under the supervision of a City of Bremerton (City) representative in accordance with all applicable State of Washington well construction rules (WAC 173-160). Up to eight monitoring wells will be installed to establish shallow groundwater quality. The number of extraction wells and well placement will be determined in consultation with Ecology based on subsurface conditions observed during underground structure removal activities. The anticipated well locations are shown on Figure 6 in the main text. Four of the wells (MW-2, MW-3, MW-4 and MW-5) are anticipated to be used as point- of-compliance wells. Up to four LNAPL extraction wells will be installed in areas that are determined to require further remediation ofLNAPL, if necessary. Generally, similar construction procedures will be used for all wells. However, total well depth and screen length may be modified from well to well based on field observations. The wells will be designed so that the screened interval of each well intersects the static water level ofthe uppermost water-bearing zone. SUBSURFACE UTILITIES IDENTIFICATION Prior to any drilling, an underground utility check will be performed by reviewing utility maps and aerial photos. Public utilities will be located by the utility agencies by means of the one-call utility locate system. A private utility locating company may also be used E-1 1/: Ica5q030 11is wpBppS. doc AGENCY REVIEW DRAFT November 2, 1998 as necessary to clear drilling locations in areas not covered by the public utility locating servIce. EQUIPMENT DECONT AMINA TIOI\! Prior to drilling each borehole and installation of wells, all drilling tools (augers and drill equipment) and well completion materials (if necessary) will be decontaminated using a hot-water pressure washer. Other equipment (e.g., water level indicators) will be washed in a solution of Alconoxilil, rinsed with water, and rinsed with deionized water prior to being placed in the borehole or well. Waste materials (e.g., water and cuttings) will be contained as described below in the Management of Investigation-Derived Wastes section. BOREHOLE DRILLING The proposed groundwater monitoring or extraction wells will be completed to a target depth between 15 and 20 ft below ground surface. Final depth of completion will be determined in the field by the depth at which sufficient water is encountered in the for- mation. Subsurface soil samples will be collected at 5-ft intervals (minimum) from the borehole for inspection and geologic logging, and retained for possible laboratory analy- ses or archiving. WELL CONSTRUCTION The groundwater monitoring or extraction well will be installed inside the borehole by Washington-licensed monitoring well installers, in accordance with all applicable laws, regulations, and guidelines. Well construction methods and materials will be used in accordance with Washington well construction rules per WAC 173-160. A detailed E-2 11: Ics5q030 1 lillwpllpps. doc AGENCY REVIEW DRAFT November 2, 1998 statement of work, including a list of equipment and supplies, will be prepared for the drilling subcontractor prior to initiating field work. The groundwater monitoring well or extraction weil will be constructed of 4-in. Schedule 40 PVC casing with threaded couplings" Generally, a 1 O~ft section of O.020-in. luill- slotted PVC well screen with a threaded end cap will be placed at the bottom of the well. Actual screen lengths will be determined in the field by the City's representative. Blank PVC casing will extend from the top of the screen to the ground surface. Threaded end caps will be attached to the bottom of each well screen and the pipe will be placed into the borehole through the inside of the hollow-stem auger. No glues, chemical cements, or solvents will be used to assemble the well construction materials. Locking expansion- type well caps will be placed on all monitoring wells. Accurate placement of all annular space materials (sand pack, bentonite plug, and bento- nite grout seal) will be achieved by measurements in the borehole using a weighted stainless-steel tape. A 2- to 3-ft-thick bentonite seal will be placed on top of the sand pack. The bentonite seal will consist of bentonite chips or pellets hydrated with forma- tion water or by the addition of clean water and allowed to set for sufficient time to ensure a proper seal. The bentonite seal will be brought up to within 2 ft of ground surface. The driller will calculate the volume of the annular space to ensure the proper volume of bentonite is placed in the annulus. A concrete surface seal approximately 1-2 ft thick will be placed on top of the bentonite grout to the surface level. The surface completion will consist of a flush mount monument with lockable cap. WELL DEVELOPMENT Following installation, but no sooner than 24 hours after placement of the bentonite seal, the well will be developed using a stainless-steel or PVC bailer or surge block and cen- trifugal pump or equivalent. The well will be alternately surged with the bailer and over- pumped until the discharge water is clear of fine materials (fines) or until a minimum of E-3 g:lca5q030T lia wpapps. doc AGENCY REVIEW DRAFT November 2, 1998 10 well casing volumes have been removed. Water quality parameters (pH, temperature, and specific conductance) will be monitored periodically during the course of develop- ment. Well development purge water will be contained onsite in UN-approved 55-gal drums pending chemical analyses as described under Management of Investigation Derived Wastes. SITE SURVEY Following installation, the location of the new wells will be surveyed to a horizontal accuracy of 1.0 ft by a Washington-licensed land surveyor. The reference elevation will be determined to an accuracy of 0.01 ft. The location will be referenced to the appropri- ate state plane coordinate system and U.S. Geological Survey datum. A notch will be filed in the top of the PVC well casing during installation (north side) as a permanent mark for referencing depth-to-water measurements. FIELD DATA REPORTING Field activities will be documented in the field logbook and logged on field data sheets as appropriate. Field forms will be used to document borehole lithology and well comple- tion details. A lithologic log will be prepared for the borehole. The borehole log will include information on soil types, color, texture, odors, water levels, drilling conditions, and any other pertinent information. Soils will be classified in accordance with the Uni- fied Soil Classification System. The Washington-licensed monitoring well installer will submit all appropriate forms to the proper regulatory body following well completion. E-4 (J: lca5q030 T liawpapp~ doc AGENCY REVIEW DRAFT November 2, 1998 MANAGEMENT OF INVESTIGATION-DERIVED WASTES Investigation-derived wastes generated at the site (e.g., drilling water, decontamination water, development water, and drill cuttings) will be stored in UN-approved drums tem- porarily stored near the investigation area pending analytical results. Disposal of investi~ gation-derived wastes will be the responsibility of the City in accordance with all applicable regulations and guidelines. Solid wastes generated during the investigation (e.g., paper towels and personal protec- tive equipment) will be cleansed of any gross soil accumulation and will be placed in plastic garbage bags and double-bagged for disposal in an approved landfill. E-5 1/:1~5q030 1 liBwpBpps.doc '. -, -" - '. ... .- ,.- - ~ - - . - - - :.:'~.ppen~li~ ~_" _ .' _ " '. '_ .. Performance Compliance and Monitoring Plan AGENCY REVIEW DRAFT November 2, 1998 PERFORMANCE COMPLIANCE AND MONITORING PLAN - - The requirements presented in this appendix include specifics regarding groundwater monitoring program design and performance and compliance monitoring for the interim actions at the site. GROUNDWATER PROGRAM DESIGN The groundwater monitoring program is designed to provide data on the groundwater flow system (e.g., groundwater surface elevations, gradients), the chemical characteristics of groundwater at the point of compliance, and the representativeness of groundwater samples collected at point-of-compliance wells. The program is summarized below, fol- , lowed by detailed sampling and analysis procedures in the remainder of this appendix. The well installation and development procedures are detailed in the Groundwater Monitoring and Extraction Well Installation Plan (Appendix E). Based on existing information, up to eight monitoring and extraction wells will be installed to establish shallow groundwater quality. The number of extraction wells and final well placement will be determined in consultation with the Washington State Department of Ecology (Ecology), based on subsurface conditions observed during under- ground structure removal activities and results of tidal monitoring. The anticipated well locations are shown on Figure 6 in the main text. Four of the wells (MW-2, MW-3, MW -4, and MW -5) are anticipated to be used as point-of-compliance wells. In addition, up to four extraction wells (if necessary) will be installed in areas that are determined to require further remediation oflight, nonaqueous-phase liquid (LNAPL). F-1 g:ICB5q030'liawpapps.doc AGENCY REVIEW DRAFT November 2, 1998 Groundwater chemistry and flow patterns on the site may be affected by tidal fluctuations in Port Washington Narrows/Smith Cove. Salt water may intrude into the groundwater; the potential inland extent of this intrusion is uncertain. A mixing zone of seawater and groundwater may exist on the seaward side of the park. To resolve these uncertainties and design a reliable grolLT1dwater mo:nitoring system, tidal monitoring, geochemical monitoring, and anion testing (to establish the presence/absence of a mixing zone) will be performed. Details of these activities are discussed below. Tidal Monitoring Tidal monitoring will be conducted using a selected number of the newly installed monitoring wells to evaluate hydraulic gradients and estimate groundwater flow direc- tions. Wells used for tidal monitoring will be selected such that the triangulation of the shallow groundwater elevation data can be used to establish groundwater gradients and flow directions. It is also expected that one Smith Cove water level measuring point will be selected for tidal monitoring. Tidal monitoring will be accomplished using data log- gers and transducers that will simultaneously record hourly water level measurements at each well for a minimum 72-hour period. The data will be mathematically averaged using a method described by Serfes (1991). Two periods of tidal monitoring will be con- ducted to establish conditions during points in the monthly cycle. The resulting data will then be used to prepare maps showing a "net" groundwater flow direction and gradient. Based on the results of the tidal monitoring, the wells selected for point-of-compliance wells will be modified, if necessary. Geochemical Monitoring In addition to tidal monitoring, geochemical monitoring will be performed to confirm that compliance monitoring samples are representative of groundwater passing through the potentially affected soil areas, and not of seawater. Field parameter measurements and F-2 g:lca5q030 Ili11wpapps.doc AGENCY REVIEW DRAFT November 2, 1998 sampling and analysis for selected anions will be conducted to establish the water "type" (groundwater vs. seawater) at the sa..rnple location. Field parameter measurements including temperature and specific conductance will be used as a screening tool to deter- mine whether the groundwater sampling point appears to be influenced by seawater. The specific conductance of seawater is approximately 50,000 ,uS/em whereas "fresh" groundwater is typically less than 500 flS/cm (Hem 1992). Thus,_ groundwater samples that are less than about 1,000 flS/cm will be assumed to be representative of groundwater and not seawater. Samples of water from Smith Cove will also be collected and analyzed for field parameter measurements to confirm seawater salinity values (i.e., specific con- ductance) in this reach of Port Washington Narrows. Anion Testing If the results of the specific conductance screening analysis indicate that groundwater in point-of-compliance wells may be affected by saline water from Smith Cove, anions (e.g., chloride and total carbonate as discussed in Todd [1980]) will be measured to evaluate the possible presence of a mixing zone between freshwater and seawater. If analytical testing establishes that wells selected as compliance monitoring points contain water that is more representative of seawater than groundwater, alternative monitoring methods and/or monitoring locations will be discussed with Ecology. GROUNDWATER MONITORING PROCEDURES Procedures for water level measurements, well purging, field parameter measurements, and groundwater sampling from monitoring wells are presented below. F-3 g: Ic.o5q030 1 liswpspps.doc AGENCY REVIEW DRAFT November 2, 1998 Water level and 'JVell Depth Measurements Prior to groundwater sampling, water levels will be measured and groundwater elevations in each well will be calculated using the depth-to-water measurements and survey data for each well. Well depths will be sounded with a steel tape and water levels will be measured using an electronic water level indicator or oil/water interface probe (as appli- cable). Water levels will initially be monitored over as short a time frame as possible. Well depth and water level data will be recorded on the groundwater sample collection form, and will be used to calculate purge volumes prior to purging and sampling. Monitoring for LNAPL will be conducted during each round of water level measure- ments. LNAPL will be measured using an interface probe. LNAPL depth and thickness measurements, if present, will be recorded on groundwater sample collection forms. Monitoring Well Purging and Measurement of Field Parameters Stagnant groundwater will be purged from each well prior to sampling. Each well will be purged at a low-flow rate to minimize turbidity and minimize drawdoWll. Purging will be accomplished using either a submersible Grundfos@ environmental sampling pump, a peristaltic pump, or a dedicated disposable polyethylene bailer, as appropriate. A 10- to 20-ft length of dedicated polyethylene tubing will be used for the pump discharge. Purge volumes will be calculated using the water level and well depth measurements. Field parameters including temperature, pH, and electrical conductivity (Be) will be monitored and recorded for each well volume removed. Once parameters have stabilized after removal of a minimum of three well volumes, water quality samples may be collected and considered representative of formation water. Field parameters will be considered stable if a measurement is within 10 percent of the previous measurement. Field parameters will be measured using equipment that is calibrated with appropriate stan- dards following manufacturer's instructions. F-4 g: Ica5qD3D Tlia wpapps. doc AGENCY REVIEW DRAFT November 2, 1998 Sampling Procedure Groundwater samples for volatile organic compounds will be collected with a submersible environmental sampling pump or a dedicated disposable bailer~ All other sa.111ples \vill be collected directly from the pump discharge. The flow rate immediately prior to and dur- ing groundwater sampling will be approximately 0.1 L/min. Samples will be collected in appropriate pre-cleaned sample containers provided by the analytical laboratory. All sample bottles will be labeled and placed in a cooler with ice immediately after collection. Sample Packaging and Shipment Careful packaging and cooling of water samples is important to ensure that chemical parameters remain stable and that the samples arrive at the laboratory intact. Formal chain-of-custody procedures will be followed. The following steps summarize the sample packaging and shipment procedures: 1. Secure the lid of each sample bottle by tightening the cap. 2. Confirm that the sample label sticker has been completed on the sam- ple bottle. 3. Wrap or package all glass bottles to prevent breakage. 4. Pack the sample bottles in coolers, preferably keeping all the samples from each sampling location together. Use packing material between all sample bottles to provide cushioning and support. 5. Use "blue ice" or ice sealed inside two resealable plastic bags to cool the samples. Do not use ice for packing between bottles. F-5 1/: Ic.5q030 T Ii. wp.pps. doc AGENCY REVIEW DRAFT November 2, 1998 6. Complete the chain-of-custody form in triplicate, listing all sample bottles in the cooler. Seal the top chain-of-custody sheet in a reseal- able plastic bag and tape it to the inside of the cooler lid. For tracking purposes, the other two copies of the sheet should be retained in the project files. 7. Deliver or call for courier to deliver samples to the contract laboratory. EQUIPMENT DECONTAMINATION Decontamination procedures for nondedicated sampling equipment (water-level indica- tors, etc.) are listed below. Nondedicated sampling equipment will be decontaminated between each sa.'11pling event. New, dedicated, flexible tubing will be used for purging or sampling each well if an envi- ronmental sampling pump that requires tubing is used. The purge tubing will be dedi- cated to each well, double-bagged, and disposed of after use. Similarly, dedicated disposable bailers will be discarded after use. Personnel conducting the sampling will use a new pair of disposable gloves for each sampling location. Gloves and other field sampling trash (e.g., paper towels) will be double-bagged and discarded after use. To prevent potential cross-contamination of samples, all reusable water sampling equip- ment will be decontaminated before each use. A decontamination station will be set up onsite in a clean location upwind of actual sampling locations. Field personnel will fol- low all relevant health and safety procedures when handling decontamination chemicals. The steps listed below should be followed to properly clean all nondedicated equipment (except the submersible pump) that comes into contact with the samples: F-6 g:lca5q03Dlliawpapps.doC AGENCY REVIEW DRAFT November 2, 1998 1. Rinse the equipment thoroughly with potable tap water. 2. Scrub the equipment in industrial detergent solution (e.g., Alconoxil!') mixed in water. 3. Rinse the eQuioment with tan water and drain. . . . 4. If heavy contamination (i.e., free product) is encountered, wash the equipment with methanol or hexane from a squirt bottle. 5. Rinse equipment with distilled water and allow to air dry. If equip- ment is not going to be used immediately, wrap the equipment in alu- minum foil and place in a clean plastic bag. If a submersible Grundfos@ environmental sampling pump is used, the following decon- tamination procedures should be used: 1. Scrub the equipment in industrial detergent solution (e.g., Alconox@) mixed in water 2. Mix a small amount of industrial detergent (e.g., Alconox@) In a bucket with potable tap water 3. Run the water through the pump 4. Repeat steps 1 and 2 ten times 5. Rinse pump ten times, using potable tap water without detergent 6. Rinse pump with 1 gal of distilled water. Field personnel will follow all relevant procedures from the site health and safety plan when handling decontamination chemicals. / F-7 g:lca5q0301Iiawpapps.doc AGENOY REVIEW DRAFT November 2, 1998 MONITORING AND REPORTING SCHEDULE Monitoring Schedule and Analyte List Groundwater monitoring will be conducted quarterly for the first year and semiannually thereafter for up to a 5-year period to assess the long-term effectiveness of the ground- water program. Monitoring will be conducted for total petroleum hydrocarbons (TPH) by Ecology analytical methods NWTPH-G/BTEX and NWTPH-D Extended. Anion testing in select wells (as explained above) will include chloride by EP A Method 300 and total carbonate by ASTM 2320B. The long-term performance of the LNAPL extraction program (Appendix G) will be assessed based on achievement of surface water standards, which will be protective of aquatic life in Smith Cove. Aesthetic qualities will be the cleanup standard for TPH in groundwater that discharges to surface water. The numeric levels associated with achieving this standard will be 10 mgIL and 1 mgIL for diesel- and gasoline-range hydro- carbons, respectively. ,1 If deemed necessary based on results of the groundwater monitoring, alternative cleanup goals will be established based on the potential impact on ecological receptors in Smith Cove. If it can be demonstrated that the LNAPL extraction has effectively prevented the migration of LNAPL contaminants to Smith Cove, the duration of the groundwater monitoring program may be shortened (in consultation with Ecology). Monitoring wells in which chemicals of interest are undetected for four consecutive monitoring rounds will be removed from the groundwater quality monitoring program. I .\ F-8 11:lcs5q030 Iliswpspps.doc AGENC'Y REVIEW DRAFT November 2, 1998 Reporting Groundwater monitoring letter reports will be submitted to Ecology after each monitoring event. Groundwater monitoring letter reports will consist of a site map showing moni- toring and extraction locations, a shallo',.''! grollildwater level contour map indicating flow direction and gradient, LNAPL extraction and recovery data, a summary of the concen- trations of chemicals of interest in groundwater, field parameters, anion testing results, and any proposed modification of the groundwater monitoring program based on moni- toring data. Results of the tidal monitoring activities will be included in a separate letter report. TRANSDUCER WATER LEVEL MONITORING PROCEDURES Tidal Stage Influence Monitoring The effects of changes in tide stage on groundwater levels will be evaluated during the initial period of groundwater monitoring to ensure accurate interpretation of groundwater gradients and flow direction. During the maximum tidal ranges occurring during the first two quarters of monitoring, diurnal tidal fluctuations will be measured in selected wells. Tide tables will be consulted to select monitoring periods. At the beginning of each monitoring session, a pressure transducer will be installed in each of the wells. A cable from each transducer will be connected to battery-powered data loggers adjusted to col- lect data continuously at fixed intervals. The data loggers will be synchronized and will automatically record the pressure of the overlying fluids in each well at IS-minute inter- vals for a minimum of 72 hours. Wells that contain floating product will be monitored periodically for tide-influenced variation in floating product thickness using an interface probe. These data will be used to calculate the piezometric groundwater surface, which could be depressed due to the presence of overlying floating product. For any wells F-9 f/:lc..Sq030 T Ii.. wp..pps. doc AGENOY REVIEW DRAFT November 2, 1998 where floating product is not detected, an electronic water level indicator will be used to measure the groundwater level. l:u:a:~D~I\I"I:C . .... """'I ........""..."" Hem, J.D. 1992. Study and interpretation of the chemical characteristics of natural water. U.S. Geological Survey water-supply paper 2254. Third edition. U.S. Geological Survey. Serfes, M.E. 1991. Determining the mean hydraulic gradient of ground water affected by tidal fluctuations. Groundwater 29(4):549-555. Todd. D.K. 1980. Groundwater hydrology. Second edition. John Wiley & Sons, New York, NY. F-10 g:lca5q030 t liawpapps.doc 1.. 'Appendix G ._.' _ - t.._~ - ;~ r r ," ~ . - - _ Operation and Maintenance Plan for LNAPL Extraction System AGENCY REVIEW DRAFT November 2, 1998 OPERATION AND MAINTENANCE PLAN FOR LNAPL EXTRACTION SYSTEM The requirements presented in this section include specifics regarding operation and/or maintenance of the light, nonaqueous-phase liquid (LNAPL) extraction system and main- tenance of the surface cap. These activities will be performed by the City of Bremerton or its representative. Up to four LNAPL extraction wells will be installed and operated, if necessary. The number of extraction wells and well placement will be determined in consultation with the Washington State Department of Ecology (Ecology) based on sub- surface conditions observed during underground structure removal activities. LNAPL EXTRACTION PROGRAM If sufficient quantities of LNAPL are encountered during well installation and under- ground storage tank removal, LNAPL extraction activities will be performed. The objec- tives of the LNAPL extraction program, if necessary, are to prevent the migration of LNAPL contaminants to Smith Cove by depleting LNAPL pools to residual levels (to the extent possible) and to quantify the volume of LNAPL that has been recovered, to assess the practicality of continued extraction. Extraction wells will undergo systematic removal of LNAPL followed by monitoring of recovery rates and evaluation of system performance. Subsequent modifications may be made to LNAPL recovery operations to optimize recovery rates and volumes. Once initial extraction has been completed, the extraction wells will be monitored weekly to measure the rate of LNAPL recovery into the well. Additional LNAPL extraction will continue as needed depending on recovery rates. In addition to estimating LNAPL recovery rates and optimizing collection schedules, LNAPL observations generated by the program (in conjunction with dissolved contaminant data) will be evaluated to G-' g:lca5q030T 1i.9 wpapps. doc AGENCY REVIEW DRAFT November 2, 1998 determine the duration of the LNAPL extraction program and the groundwater monitoring program. The results of this data evaluation will be summarized in the quarterly reports to Ecology. lNAPl Recovery Procedures This section addresses LNAPL extraction procedures and the criteria to evaluate the per- formance of the extraction program, if LNAPL extraction is deemed necessary. LNAPL thickness measurements will be made using an electric oil/water interface probe or simi- lar device that distinguishes between LNAPL and water. LNAPL will be removed from the extraction well either by bailing, passive skimming canister, or suction lift pump, as described below. Bailers Bailers offer a simple, effective, and low-cost method of LNAPL recovery. The steps involved include measuring and recording LNAPL thickness from each extraction well, removing LNAPL, recording the quantity of LNAPL recovered, and transferring recov- ered LNAPL to a storage vessel. During each LNAPL recovery event, prior to LNAPL recovery, LNAPL thickness will be measured in each extraction well and recorded. LNAPL thickness is calculated by sub- tracting the depth to LNAPL from the depth to groundwater. LNAPL and groundwater depths are measured using an electric oil/water interface probe (probe). The probe is equipped with a battery-powered alarm that, when lowered into the well, returns one sig- nal when the bottom of the probe has reached LNAPL and a different signal when the bottom of the probe has reached groundwater. The depths to LNAPL and groundwater are measured by noting the graduated markings on the probe's tape. The graduated markings are in feet, tenths of feet, and hundredths of feet, and are measured from the top G-2 )- g:Ic_5q0301 liBWpBpps.doc AGENCY REVIEW DRAFT November 2, 1998 of the well casing. Because not all casings are cut precisely horizontally, when a well is originally installed, a mark or notch is placed on one side of the casing to indicate the location on the casing at which depths to LNAPL and groundwater are measured. This mark or notch will be plainly visible when the well casing cap is removed. After each use, the probe will be cleaned using AlconoxlID or similar detergent and then rinsed with distilled water. After LNAPL measurement, a bailer and cord will be used to remove LNAPL from the extraction well. Viscous LNAPL may require use of a weighted bailer. If nondedicated, nondisposable bailers are used, they must be cleaned between wells with Alconox@ or similar detergent and then rinsed with distilled water. Bailing should be repeated until only a sheen of LNAPL is observed in the bailer. An attempt should be made to mini- mize the quantity of water removed concurrently with the LNAPL. The LNAPL and water bailed from each well is placed in a graduated pail to measure the quantity of LNAPL removed. The volume of LNAPL in the pail can be measured either by using the volume markings on the side of the pail or by using the probe to measure the thickness of LNAPL in the pail. After measurement, the LNAPL and water in the pail is transferred to the LNAPL storage vessel for temporary storage. LNAPL Recovery Using Canisters The use of passive hydrocarbon skimming canisters to recover LNAPL offers another simple method of LNAPL recovery. The passive skimming canister may be used if results of the tidal monitoring indicate a tidal range of less than 2 ft at the extraction well location. Tidal ranges greater than 2 ft may reduce the effectiveness of the canisters because the canister could sit above or below the LNAPL. LNAPL is removed from the extraction well by a passive skimming canister (similar to a sampling bailer) with a hydrophobic filter that allows the entry of LNAPL into the canister, but excludes water. G-3 g: Ica5q030 Ilia wpapps. doc AGENCY REVIEW DRAFT November 2, 1998 LNAPL is collected and stored within the canister until it is emptied during periodic monitoring. During each LNAPL recovery event, LNAPL thickness is measured and recorded as described for bailer recoverf. After LNAPL measuremeni and decontamination of the interface probe, the canister will be lowered to the LNAPL/water interface and secured in place to capture LNAPL. The skimmer canister should be placed at an elevation in the extraction well such that the LNAPL/water interface will be within the screened interval of the canister (see owner's manual), allowing for fluctuations in the water table. During periodic monitoring, the c3.1-llster will be removed from the extraction well and the contents will be emptied into a graduated pail to measure the quantity of LNAPL recov- ered. The volume of LNAPL will be measured either by using the volume markings on the side of the pail or by using an interface probe to measure the thickness. Measure- ments of LNAPL volumes and recovery rates will be recorded on field forms. After measurements have been recorded, the canister will be placed back into the well. Initially, the canisters will be monitored weekly and the amount of LNAPL recov~red will be evaluated to determine whether this monitoring schedule is appropriate. If the LNAPL collection canister is full, more frequent monitoring will be performed. Simi- larly, if the canister is less than half full, less frequent monitoring will be performed. Adjustments to the monitoring schedule will be made as necessary. Pumps A peristaltic pump may also be used to periodically remove the accumulated LNAPL. This is accomplished by lowering the intake tubing to the level of the LNAPL in the well and pumping off the product. When the pump begins to remove any water, LNAPL removal is stopped. LNAPL thickness and recovery data will be recorded as described for bailer and skimming canister LNAPL extraction procedures. G-4 g :1c.t5q030 Iliswpspps.doc AGENCY REVIEW DRAFT November 2, 1998 Recycling of LNAPL Recovered LNAPL will be transferred to a LNAPL storage vessel located on the Prop- erty. The storage vessel will consist of a suitable container (e.g., 55-gal UN-approved drum or equivalent). Provisions will be made for secondary containment (e.g., an over- pack drum or equivalent), security (i.e., locked building or fencing), and safety (i.e., sign- age) as appropriate. All LNAPL storage will be in accordance with all applicable laws, regulations, and codes. When sufficient quantities of LNAPL and groundwater have been collected from the extraction wells, a licensed petroleum hydrocarbon waste disposal or recycling firm should be contacted to dispose of the recovered LNAPL and groundwater. Records will be kept as to volume of LNAPL and groundwater removed from the site. Solid wastes generated during collection of LNAPL thickness data and LNAPL removal (e.g., paper towels, disposable gloves) will be cleansed of any gross LNAPL accumula- tion, placed in plastic garbage bags, and disposed of at an appropriate landfill. MAINTENANCE Little maintenance is required for the extraction wells or surface cap, and no specific maintenance schedule is required. However, observations of poorly performing wells, holes in the surface cap, or inoperable equipment may require immediate attention. For example, well locks, well caps, monument seals, or skimmer canisters may require peri- odic replacement, and holes may develop in the surface cap, which would require patch- ing with the appropriate material (i.e., asphalt patch or soil). Any visible cracks or holes will be patched in a timely fashion to prevent the infiltration of surface water. G-5 g:lc<t5q030 1 li<twP<tpps.doc , . ;,:.'Appendix H.~ .- " - ~ - . c., ,- " _ '_ - _ Institutional Control Plan AGENCY REVIEW DRAFT November 2, 1998 INSTITUTIONAL CONTROL PLAN Institutional controls will be implemented for the redeveloped portion of the site to minimize workers' and the general public's potential exposure to the chemicals of inter- est. These actions are being proposed even though the chemicals of interest are primarily of concern for their aesthetic effects (except as identified in the focused feasibility study) (Exponent 1998). Areas that pose the greatest potential for exposure include site soils if they were to be disturbed and the sediments within Smith Cove. For these reasons, site restrictions for the redeveloped park property will include: !I Deed restrictions · Procedures to be followed for long-term cap protection and soil management · Perimeter vegetation and fencing along the Smith Cove shoreline · Signs along the Smith Cove shoreline · Shoreline stabilization measures along Smith Cove. Deed restrictions will include legal measures limiting use of the property to recreational purposes and prohibiting the use of groundwater for any purpose. In addition, the City of Bremerton (City) will prepare procedures to be followed if the cap and/or subsurface soils are disturbed. The cap is intended for long-term use and the City will minimize disturbance of it to the extent practicable. If the cap and underlying soils need to be dis- turbed (e.g., for a maintenance activity), the City will prepare procedures that address worker protection, management of excavated soils, backfilling requirements, and replacement of any portion of the cap that may be penetrated or disturbed. As a conservative precautionary measure, action will be taken as part of the park devel- opment to prevent the users of the park from coming into direct contact with the H-1 g:lca5q030 11iawpapps.dOc i- AGENCY REVIEW DRAFT November 2, 1998 sediments. It is more efficient for the City to implement these institutional controls in conjunction with the park construction and redevelopment. Therefore, additional insti- tutional controls will include shoreline perimeter vegetation and a fence. As an added safety margin, signs will be placed in Smith Cove along the shoreline indicating the potential hazards of the sediment. In addition to preventative measures, portions of the shoreline along the cove will be stabilized to prevent erosion. H-2 g:lcs5q030 1 Iiswpspps. doc '~~ ApR'endix~I' , ~, ~ .__. __ ' '" ;-:.....- " . .'" ,". , SEPA Checklist PART ELEVEN - FORMS WAC 197-11-960 Environmental checklist. ENVIRONMENTAL CHECKLIST Purpose of checklist: The State Environmental Policy Act (SEPA), chapter 43.21C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact 'statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. Instructions for applicants: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information lmown, or give the best description you can. You must answer each question accurately and carefully, to the best of your lmowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not lmow" or "does not apply." Complete answers to the questions now may avoid llru"lecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. Use of checklist for nonproject proposals: Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). For nonproject actions, the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. A. BACKGROUND 1. Name of proposed project, if applicable: Interim Action at Evergreen Park in Bremerton, Washington 2. Name of applicant: City ofBremerton 1-1 g:lca5q030 Ilapp j.doc 3. Address and phone number of applicant and contact person: Gene Sampley, PE Director, Department of Public Works City ofBremerton 3027 Olympus Drive Bremerton, W A 98310-4799 3. Date checklist prepared: August 27, 1998 5. Agency requesting checklist: \Vashington State Department of Ecology 6. Proposed timing or schedule (including phasing, if applicable): Interim actions are anticipated to begin in spring of 1999 and are expected to be completed by December 1999. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. The City of Bremerton is planning to expand Evergreen Park around Smith Cove by redeveloping industrial properties that are located on the shoreline. Final park construction will be completed following interim remedial actions. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Environmental studies and work plans have been prepared. These include the Remedial Investigation, Focused Feasibility Study, Interim Action Work Plan, and Engineering Design Report. 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 city is not aware of any such applications. 10. List any government approvals or permits that will be needed for your proposal, if known. The interim cleanup action will be conducted under an Agreed Order with Ecology. Accordingly, the work will be exempt from procedural requirements of certain state statutes and all local permits and approvals. However, substantive compliance will be required by Ecology as stipulated in the Agreed Order. Approval from the City Development Office would be required to demolish buildings and grade and fill the site. Other approvals include a demolition and asbestos abatement permit from the Puget Sound Air Pollution Control Agency, electrical permit, and building permit. II. 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 1-2 11:lca5q030 Ilapp j.doc 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 City of Bremerton proposes to redevelop the upland portions of four privately owned properties and an existing undeveloped portion of Evergreen Park into ail. e":panded Evergreen Park. The five properties included within the Expansion site boundary are, from north to south: the southern, undeveloped portion of Evergreen Park; the former City Depot (also known as the City Maintenance Yard); Brem-Air Disposal Company, Inc.; the Lofthus site; and Puget Power. The proposed redevelopment scenario consists of removing the existing buildings andunderground structures that remain on the industrial properties, removing a former fueling pier that extends into Smith Cove, placing clean fill soil to recontour the park's - grade along the cove, landscaping the soil fill to include ballfields, lawn, and other plantings, and building a walking path above the shoreline. The Expansion site is approximately 10 acres. The interim cleanup actions are anticipated to meet the following objectives: ~ Remove product sources to reduce petroleum hydrocarbon mass · Prevent groundwater from causing sheen on adjacent surface water · Reduce potential for direct contact with soil · Reduce infiltration of precipitation through soil. 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 Ia..'lge, 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. The Expansion site properties are located in Section 13, Township 24 North, Range 1 East, in Kitsap County, in the City of Bremerton, Washington. The Expansion site is bordered by Highland Avenue and Smith Cove on the east, and by 13th Street, Sheldon Boulevard, 14th Street, and Park Avenue on the south and west. Figure 1 is attached. B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site (circle one): ~, rolling, hilly, steep slopes, mountainous, other. . . . . . b. What is the steepest slope on the site (approximate percent slope)? 5-10 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 prime farmland. Shallow soils are a heterogeneous mixture of silt and sand fill material with varying proportions of gravel and fill debris. The fill consists of sand, silt, gravel, and debris (including wood and wood chips, metal, brick, concrete, plastic, charcoal, and shell fragments). d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. None known. 1-3 g:lcs5q03011spp j.doc e. Describe the purpose, tYPe, and approximate quantities of any filling or grading proposed. Indicate source of fill. The site will be backfilled and capped with clean, imported fill. The source of the fill is currently undetermined, but it will be verified as clean prior to placement The capped surface will be used for recreational purposes. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. The shoreline along Smith Cove will be stabilized to prevent erosion as a part of interim cleanup actions. No other erosion is anticipated. ~ g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? Approximately 20 percent of the site will be covered with asphalt after project construction. Currently, over 50 percent of the site is covered with asphalt, concrete, and buildings. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: The :fmal park surface will be developed with grass, shrubs, trees, other plantings, and bank stabilization will occur along the shoreline of Smith Cove. 2. Air a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. Minimal dust emissions are expected to occur during construction. Demolition of the building that contains asbestos materials will be conducted as stipulated in the substantive permit requirements under PSAPCA. Because the site will be capped with primarily soil and vegetation, no emissions are anticipated with the exception of vehicle use by park visitors. b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. No. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Watering during construction will control any dust generated. 3. Water a. Surface: 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. Yes, there is an unnamed ephemeral ditch leading from the Lofthus site to Smith Cove that is typically dry except during heavy precipitation. No lakes, ponds, or wetlands are present onsite. The ditch discharges to 1-4 g:lca5q030 IlappJ.doc Smith Cove, which is a marine embayment of Port Washington Narrows. Tidal fluctuations in this region range from 5 to 10 feet on a daily basis. 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. Yes. The project will be performed adjacent to Smith Cove. In addition, the sedi.rnents i.11 the ditch wi!! be covered by clean fill and re-vegetated with grass. This represents less than 1 percent of the project area. 3) Estimate the amount offill 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 offill material. None. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No. 5) Does the proposal lie within a I DO-year floodplain? If so, note location on the site plan. Yes, the entire site lies within a I DO-year floodplain. 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. No. b. Ground: 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. Groundwater will be withdrawn over a 5-year period for compliance monitoring and potential product removal. Less than 300 gallons of water per year will be withdrawn for this purpose. No water will be discharged to groundwater. 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. None. c. Water runoff (including stormwater): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, ifknown). Where will this water flow? Will this water flow into other waters? If so, describe. Current and future sources of storm water consist of rainwater falling on the site. Storm water runoff will be directed into the existing municipal sewer system along Sheldon Boulevard via the grading of the park surface. ) , 1-5 I 'enterprise Idocslce5q030 Ilepp j. doc 2) Could waste materials enter ground or surface waters? If so, generally describe. Construction debris could potentially enter Smith Cove during construction. In addition, subsurface activities could disturb underlying groundwater and cause temporary seepage into the cove. Any such potential impacts will be mitigated to the extent possible as described in part d. d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: If undesirable materials are observed entering South Cove during construction, protective barriers or absorbent booms will be placed along the shoreline to mitigate potential impacts. 4. Plants a. Check or circle types of vegetation found on the site: X_ deciduous tree: alder, maple, aspen, other X- evergreen tree: fir, cedar, pine, other shrubs X_ grass pasture crop or grain wet soil plants: cattail, buttercup, bullrush., skunk cabbage, other water plants: water lily, eelgrass, miIfoil, other X---'- other types of vegetation (blackberry brambles, horseWIs, and scotchbroom) b. What kind and amount of vegetation will be removed or altered? Weeds will be replaced with grasses for ballfields, shoreline perennials, and deciduous and evergreen trees. c. List threatened or endangered species known to be on or near the site. None. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: The soil fill will be landscaped to include ballfields, lawn, and other plantings. See response to 4.a. 5. Animals a. Circle any birds and animals, which have been observed on or near the site or are known to be on or near the site: birds: ~,heron, ~ ~ongbirdsj, other: marrunals: deer, bear, elk, beaver, other: ~ccoonsl, ~quirrel~ fish: bass, ~almo~, trout, herring, ~hellfisli other: b. List any threatened or endangered species known to be on or near the site. None. l ~ 1-6 g:lclf5qD3D T Ilfpp .J.doc , .; _\ I c. Is the site part of a migration route? If so, explain. None known. d. Proposed measures to preserve or enhance wildlife, if any: None. 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. Minimal electricity for nighttime park lighting will be required. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. No. c. What kinds of energy conservation features are included in the plans ofthis proposal? List other proposed measures to reduce or control energy impacts, if any: Not applicable. 7. Emironmental 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. Construction workers may be exposed to affected soil and groundwater during remediation. 1) Describe special emergency services that might be required. A site health and safety plan will be prepared to mitigate exposure and protect workers in case of an emergency. 2) Proposed measures to reduce or control environmental health hazards,. if any: All workers working at the site during construction will perform tasks under the standards set forth by OSHA (2a CFA 1910.120) and Washington State General Health and Safety Standards (296-24 WAC). b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? None. i' 1-7 1l:lca5q030 tlapp j.doc i I -/ 2) What types and levels of noise would be created by or associated with the project on a short-tenn or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Construction noise will occur during regular construction hours. 3) Proposed measures to reduce or control noise impacts, if any: None. 8. Land and Shoreline use a. What is the current use of the site and adjacent properties? The site is mostly vacant land that has been previously used for industrial purposes. Adjacent property to the northwest is Evergreen Park, which is ::1 recreation area. b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. There are three vacant industrial commerciaI/buiIdings on the Brem-Air site. There are two commercial structures on the southern boundary of the Lofthus property, as well as tank supports and a smaIl concrete retaining wall. Puget Power currently owns and maintains a high-power overhead transmission tower on their site. d. Will any Structures be demolished? If so, what? All site structures will be demolished or removed, with the exception of the transmission tower. e. What is the current zoning classification of the site? Industrial and commercial (will be changed to schools and parks as part of park redevelopment). f. What is the current comprehensive plan designation of the site? Recreational. g. If applicable, what is the current shoreline master program designation of the site? Parks. h. Has any part of the site been classified as an "environmentaIlysensitive" area? If so, specify. No. i. Approximately how many people would reside or work in the completed project? None. 1-8 1l:1ca5q03071app -'.doc j. Approximately how many people would the completed project displace? None. k. Proposed measures to avoid or reduce displacement impacts, if any: Not applicable. 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: Existing comprehensive neighborhood planning docmnent incorporates the project. 9. Housing a. Apprmdrnately how many units would be provided, if any? Indicate whether high, middle, or low- i...,come housing. Not applicable. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low- income housing. Not applicable. c. Prop{)sed measures to reduce or control housing impacts, if any: Not applicable. 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? No buildings are proposed. b. What views in the immediate vicinity would be altered or obstructed? None. c. Proposed measures to reduce or control aesthetic impacts, if any: None. 11. Light and glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? None. b. Could light or glare from the finished project be a safety hazard or interfere with views? No 1-9 g:lca5q03071appJ.doc -I . i c. What existing off-site soUrces of light or glare may affect your proposal? None. d. Proposed measures to reduce or control light and glare impacts, if any: Not applicable. 12. Recreation a. What designated aild informal recreational opportunities are in the immediate vicinity? Evergreen Park is northwest of the expansion area. b. Would the proposed project displace any existing recreational uses? If so, describe. No, the project will expand 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: The City of Bremerton is proposing to expand Evergreen Park around Smith Cove and provide the public with an improved shoreline park, which will include ballfields, lawns, other plantings, and a walking path above the shoreline. 13. Historic and cultural preservation a. Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. No. b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. None known. c. Proposed measures to reduce or control impacts, if any: Not applicable. 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. The site is currently served by Highland Avenue to the east, and by 13th Street, Sheldon Boulevard, 14th Street, and Park Avenue on the south and west. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? No. The nearest transit stop is less than 0.5 mile on 11th Street. 1-10 g:lca5q030 Ilapp J.doc ! I ! . I c. How many parking spaces would the completed project have? How many would L'1e project eliminate? The completed project will have approximately 54 parking spaces. Currently, there are approximately 40 parking spaces. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so; genera!!y describe (indicate wheu'1er pubiic or private). No. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. Not known. .' g. Proposed measures to reduce or control transportation impacts, if any: None. , ., IS. Public senices a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. No. b. Proposed measures to reduce or control direct impacts on public services, if any. Not applicable. 16. Utilities a. Circle utilities currently available at the site: ~lectricitYl.lnatura1 gat ~ ~efuse servicej, ~elephonti ~anitary sewexj, 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. No utilities are currently planned for the construction project; however, the new park will require sewer, water, electricity, and refuse service. C. SIGNATIJRE 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: Date Submitted: 1-11 11:1:!5q030 11spp .i.doc