Site Operations Plan Syosset Landfill, Prepared by Geraghty & Miller, Inc
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Geraghty & Miller, Inc. r SITE OPERATIONS PLAN SYOSSET LANDFILL D August 1986 H Geraghty & Miller, Inc. Ground-Water Consultants 125 East Bethpage Road Plainview, New York 11803 (516) 249-7600 OPC114 Geraghty & Miller, Inc. CONTENTS Page 1. INTRODUCTION ................ 1 1.1 Purpose ............... 1 1.2 Format ............... 1 1.3 Project Team ............. 2 2. SAMPLING PLAN 2.1 Data Verification, Data Base Establishment and Aerial Photograph Study .......... 3 2.2 On-Site Ground-Water Study ...... 4 2.2.1 Drilling ........... 5 2.2.2 Soil Sampling for Laboratory Analysis ..... 6 2.2.3 Well Installation ....... 6 2.2.4 Well Development ....... 7 2.2.5 Geophysical Logging ...... 8 2.2.6 Water Quality Monitoring ... 8 2.3 Landfill Dimension Study ....... 11 2.3.1 Installation of Borings .... 12 2.3.2 Collection of Soil/Waste Samples .......... 14 2.3.3 Well Installation ....... 16 2.3.4 Well Development ....... 17 2.3.5 Water Quality Monitoring .... 17 000115 Geraghty & Miller, Inc. Page 2.4 Off-Site Ground-Water Study ...... 18 2.4.1 Work Plan ........... 18 2.4.2 Operations Plan ........ 19 2.4.3 Integration of the Data col- lected during the Off-Site & On-Site Ground-water . Investigations ....... 19 ' 2.5 Subsurface Gas Study ......... 20 I'I ' 2.5.1 Construction of Gas Monitoring Wells ............ 20 ^ 2.5.2 On-Site Study ......... 21 fn 2.5.3 Off-Site Study ......... 24 0 3. QUALITY ASSURANCE/QUALITY CONTROL PLAN ... 24 4. HEALTH & SAFETY PLAN ........... 35 P 4.1 Introduction ............. 35 I 4.2 Management .............. 36 4.3 Hazard Evaluation .......... 36 ,1 4.4 Air Monitoring ............ 39 rT 4.5 Personal Protective Equipment .... 41 4.6 Facilities .............. 42 4.7 Decontamination ........... 43 4.8 Training ............... 44 4.9 Health Monitoring .......... 45 4.10 Emergency Procedures ......... 47 5. FEASIBILITY STUDY ............. 48 000118 Geraghty & Miller, Inc. Page 6. DELIVERABLES AND SCHEDULE ......... 50 6.1 Deliverables ............. 50 6.2 Schedules ............... 52 REFERENCES ................... 54 TABLES 3.1 Inventory of Safety Equipment to be Kept On Site FIGURES 1.1 Syosset Landfill - RI/FS Team 2.1 Site Location Map 2.2 Proposed Monitoring Well Locations 2.3 Construction Details of the Monitoring Wells 2.4 Proposed Landfill Boring Locations 2.5 Construction of Wells Placed in Landfill Borings 2.6 Typical Gas Monitoring Well 2.7 Proposed Gas Monitoring Well Locations 2.8 Gas Monitoring Well Sampling Apparatus 3.1 Data Review and Management Process 4.1 Schematic of Decontamination Facility 6.1 Syosset Landfill Remedial Investigation Schedule C.I Typical Completion for Wells Equipped with Submersible Pumps C.2 Sample/Discharge Fitting and Flow-through Cell oaou? Geraghty & Miller, Inc. APPENDICES A. Example Data Tables B. Protocol for Screening Soil Samples for vocs C. Protocol for Sampling Ground Water by Sub- mersible Pump D. Protocol for Sampling Ground Water with a Bailer E. Analytical Parameters F. Protocol for Soil Sampling G. Laboratory Quality Assurance/Quality Control Procedures H. Geraghty & Miller, Inc. Forms I. Composition of Bentonite J. Toxicological/Hazard Data 000118 Geraghty & Miller, Inc. 1. INTRODUCTION 1.1 Purpose The Site Operations Plan (SOP) for the Syosset Landfill has been developed to provide a detailed description of the scope-of-work, on-site investigation methodologies, quality assurance/quality control and the health and safety require- rn ments which were referenced in the Work Plan for On-Site Re- } 1 medial Investigation/Feasibility Study at the Syosset Land- j fill, Syosset, New York, June 1986. The SOP has been pre- U pared in accordance with the agreements stated in the Admin- |r, istrative Consent Order (ACO) between the Town of Oyster Bay r- and the United States Environmental Protection Agency **• (USEPA) signed in July 1986; the formation of the SOP ad- f| heres to the requirements of a Remedial Investiga- tion/Feasibility Study (RI/FS) as outlined in the Guidance T f|i Documents for Remedial Investigation and Feasibility Studies P dated June 1985. The completion of the tasks and deliver- * ables presented in the SOP will insure consistency with the | National Contingency Plan (NCP) for CERCLA-funded investiga- tions. 1.2 Format The format of the SOP is divided into the following « sections: Section l is the Introduction; Section 2 de- 000119 Geraghty & Miller, Inc. -2- scribes the Sampling Plan. The Sampling Plan contains the tasks for the On-Site Remedial Investigation. They are Data Verification, Data Base Establishment, and the Aerial Photo- graph Study; the On-Site Ground Water Investigation; the Landfill Dimension Study; the Off-Site Ground Water Investi- gation, and the Subsurface Gas Study. Section 3 contains the Quality Assurance/Quality Control Plan, and Section 4 describes the Health and Safety Plan. The alternatives which may be considered during the feasibility study are de- scribed in Section 5 and the Deliverables and SOP Schedule are presented in Section 6. All tables, figures and appen- dices which supplement Sections 1 through 6 are presented in the Tables, Figures and Appendices sections of the SOP. 1.3 Project Team The project team (Syosset Landfill - RI/FS Team) which will conduct the SOP is given on Figure 1.1 which also indi- cates responsibilities and chain of command. Geraghty & Miller, Inc. will be responsible for performing the site investigative work. Geraghty & Miller, Inc. is under sub- contract to the firm Lockwood, Kessler and Bartlett (LKB), who will function as project managers and provide oversight and engineering expertise throughout the RI/FS. 000120 Geraghty & Miller, Inc. 2. SAMPLING PLAN 2.1 Data Verification, Data Base Establishment and Aerial Photo Study Geraghty & Miller, Inc. will attempt to contact each firm or agency who has conducted studies and/or collected j data on the Syosset Landfill to determine what data/sample collection protocols were employed. The following designa- I tions will be assigned to each result: i U = collection protocol unknown !.i: N = collection protocol not satisfactory |.ri *S = collection protocol satisfactory Mr The assignment of a designation will be based on f!f whether the protocol is consistent with guidance given in USEPA manuals on ground-water investigation and sampling |j (see References). The designation will be clearly noted on ,T each data sheet, or the report cover. P Water-level and water-quality data from these previous studies will be entered into a computerized data management system. This system will reproduce the data in tabular form; examples of the tables are given in Appendix A. Data, generated during the RI/FS, will also be entered into this system. Geraghty & Miller, Inc. • _4_ A division of LKB conducts aerial photograph surveys of Long Island. LKB will provide aerial photographs of the Syosset Landfill taken during the years when landfilling op- erations were underway. The photographs will be studied with the intention of pinpointing the likely areas and depths in the landfill in which industrial wastes may have been placed. The determination of potential "hotspots11 at the Syosset Landfill will be used to guide the selection of sample depths in the Landfill Dimension Study. A site loca- tion map of the Syosset Landfill is provided in Figure 2.1. 2.2 On-Site Ground-Water Study The initial ground-water investigation at the site (ERM, 1983) identified leachate impacts to the ground water under the site. The proposed study has been designed to de- termine the extent of these impacts on-site, to determine the potential for off-site migration and to develop a plan for delineating off-site, ground-water contamination. The investigation will rely on accurate water-table and vertical piezometric head measurements to determine flow directions. A more detailed and comprehensive geologic and geochemical data base than currently available will be developed so that factors controlling contaminant migration and attenuation in the aquifer can be understood. Geraghty & Miller, Inc. _ 2.2.1 Drilling In order to establish ground-water conditions in the water-table zone around the site, two new shallow wells will be installed at the locations shown on Figure 2.2. These wells will be drilled to depths similar to the existing mon- p itoring wells (approximately 140 feet). The wells will be I installed in an 8-inch diameter borehole drilled by the mud- 1 rotary method using a bentonite and water mixture as the circulation fluid. Bentonite is a mixture of 90% sodium- ti montmorillonite clay and 10% polymers. The composition of n the bentonite, which will be used during drilling, is given in Appendix I. f: Drilling Method J , •• Mud rotary drilling method uses a rotating drilling bit which removes cuttings by continuous circulation of a f| drilling fluid as the bit penetrates the formation. The drilling fluid is pumped through the drill bit and flows up- | ward in the annular space between the borehole wall and , drill pipe carrying the formation cuttings in suspension to land surface. The drilling fluid forms a thin layer of mud on the wall of the hole whi h reduces seepage loss of drilling fluid to the formation and supports the walls in order to prevent caving of the borehole during drilling. OP0123 Geraghty & Miller, Inc. Formation Sampling A 2-inch diameter split-spoon sampler, 2-feet in length, will be used to collect core samples from the bor- ings at 5-foot intervals and at changes in the lithology. i Samples will be described, with special attention given to r identifying fill materials encountered while drilling. Four deeper wells will be drilled using the same method {, described above. Each of these wells will be approximately I" 200 feet in depth; proposed locations are shown on Figure *J 2.2. ur 2.2.2 Soil Sampling for Laboratory Analysis D All split-spoon samples will be screened for volatile ji organic compounds (VOCs) using the protocol described in Ap- pendix B.