Site Characterization. The process of collecting sufficient information to determine the nature and extent of contamination at the site.
Site Characterization. By November 1, 2023, PG&E will perform soil and sediment sampling and characterization of Diablo Creek within the Part 50 NRC license boundary.
Site Characterization. PG&E agrees to perform soil and sediment sampling and characterization for Diablo Creek within the Part 50 NRC license boundary by November 1, 2023. PG&E will conduct sampling in Diablo Creek consistent with NUREG-1575 and the Multi-Agency Radiation Survey and Site Investigation Manual for radioactivity and California Environmental Protection Agency guidance for hazardous materials. PG&E’s agreement to perform soil and sediment sampling and site characterization for Diablo Creek within the Part 50 NRC boundary by November 1, 2023, resolves disputed issues regarding site characterization for purposes of this 2021 NDCTP.
Site Characterization. (a) DOE shall conduct a program of site characterization with respect to the Yucca Mountain site before it sub- mits an application for a license to be issued under this part.
Site Characterization. Phase II Assessment The objective of this sub task is to conduct Phase II environmental site assessments as needed to advance the assessment and characterization of the selected properties. The Phase II assessment activity is the primary use of funding for this project. In certain cases the Phase I assessment may recommend a Phase II study or the selected property may have already received initial Phase I assessment. In any event, the Coalition will work with the EPA Project Officer and IDEQ to identify and prioritize the sites that will be qualified for Phase II assessment activity. The lead entity for the Phase II assessment activity will be the Coalition’s selected environmental consultant(s), who shall be responsible for ensuring that all assessments are conducted in conformance with applicable EPA and IDEQ standards. The proposed budget for Phase II site assessments is $320,000 total, comprised of $52,500 from the petroleum budget, $267,500 from the hazardous waste budget. Specific milestones and deliverables for this subtask include: Minimum 5 Phase II Assessments completed.
Site Characterization. Groundwater samples collected from the Mt. Olivet Cemetery irrigation well from 1990 to 1999 by UDEQ and the Salt Lake Department of Public Utilities exceeded the federal drinking water standard for PCE although no one was using the water for that purpose. PCE levels ranged from 11 to 184 micrograms per liter (µg/L) during this period of time. The irrigation well is approximately 470 feet deep and is screened the majority of its length through both unconfined and deeper confined aquifers (UDEQ 2000). In 1997, PCE was also detected in Salt Lake City municipal supply well No. 18 (SLC Well 18) at 0.6 µg/L, which is below the National Drinking Water Standards Maximum Contaminant Level (MCL) of 5 µg/L. In 1998, EPA conducted investigations in the area which included the installation of six groundwater monitoring xxxxx; one on VAMC property (MW-05) and five to the west-southwest (MW-01s, MW-01d, MW-02, MW-03 and MW-04). In September 1999, EPA MW- 03 was abandoned and an additional monitoring well (MW-06) was installed in the xxxxxxxxx xxxxxx xx Xxxxxxxxx Xxxx (XXXX, 0000). All EPA monitoring xxxxx are located southeast of SLC Well 18. Analytical results for groundwater samples collected from these xxxxx ranged from below laboratory reporting limits to 320 µg/l. Groundwater modeling representative of 1999 conditions was also conducted for SLC Well 18. The study indicated that local groundwater flow direction was to the northwest due to localized mounding. The data suggested a possible correlation between prolonged pumping and detection of PCE in SLC Well No. 18 (Xxxxx and Xxxxxxx 2004). A Site Inspection (SI) was conducted at the Site in October 2004 jointly by the UDEQ and EPA Federal Facilities Program. During this sampling activity, PCE was detected in SLC Well 18 at a concentration of 2.23 µg/L. The highest detection of PCE (128 µg/L) was found in a sample collected from Mount Olivet Cemetery irrigation well. A duplicate of this sample contained 92 µg/L of PCE. A Hazard Ranking System (HRS) package was prepared to determine if the Site was eligible for inclusion on the National Priorities List (NPL). The HRS site score was 50.00 based on the groundwater migration pathway. Any site scoring of 28.50 or greater is eligible for the NPL. EPA may propose adding sites scoring greater than 28.50 to the NPL through proposed rulemaking in the Federal Register following a QA review and public comment (EPA 1992). In June 2010, a Chevron pipeline near the mouth of Red But...
Site Characterization. Phase 1 Assessment The City of Beaverton anticipates conducting up to four Phase I assessments (two hazardous substances and two petroleum) at an estimated cost of $5,000 each. The sites will be verified with the Region 10 EPA officer and Oregon DEQ prior to assessment. The information collected will be used to determine the top priority sites for the Phase II ESAs. The project manager will coordinate the fieldwork with the contractor. The project manager will also ensure that all requirements relating to Endangered Species Act, National Historic Preservation Act, and Clean Water Act Section 404, is met by the contractors prior to commencement of fieldwork.
Site Characterization. Phase 2 Assessment The City of Beaverton anticipates conducting up to five (5) Phase II ESAs under the Petroleum grant at an average cost of $24,750 each, and five (5) Phase II ESAs under the Hazardous Substance grant at an average cost of $24,750 each, subject to change as more is discovered through Phase I assessments. The city will re-use the candidate site identification prioritization and selection criteria, which will be reviewed, added to, subtracted from, and weighted during the Community Engagement Process outlined in the upcoming Public Involvement Plan (PIP). The Project Team will, through the auspices of the project manager, prepare a Quality Assurance Project Plan (QAPP), a Health and Safety Plan (HASP), and a Sampling and Analysis Plan (SAP) for each site where a Phase II ESA will be performed. These plans will identify and establish practices and procedures to assure that the overall project will be implemented in a manner that provides acceptable, useable results according to the U.S. EPA guidelines and recommendations. The plans will be submitted to the EPA and Oregon DEQ for review and approval prior to performance of any sampling. A copy of each plan will be inserted into the Cooperative Agreement Work Plan. Environmental assessments under this project will be conducted by qualified contractors and in accordance with the EPA‘s All Appropriate Inquiries Final Rule.
Site Characterization. Phase I Assessment The goal of this grant is to bring the two private properties impacted by the Historic Smelter Area operations, Property 11 and Property 15, into the overall cleanup and revitalization via either fee simple transfer or purchase by the City of Ponderay. To accomplish this task the City of Ponderay plans to complete two (2) Phase I Environmental Site Assessments (ESAs) on the privately owned Historic Smelter Area properties. Prior to initiating a Phase I ESA, an eligibility determination will be prepared and submitted to the EPA for review and approval. Phase I ESAs will be performed in accordance with the All Appropriate Inquiries (AAI) Final Rule and the ASTM International E1527-13 Phase I ESA standard. All AAI final reports produced will comply with 40 CFR Part 312. All AAI reports submitted to the EPA will be accompanied by a completed “AAI Reporting Requirements Checklist”. The checklist is available on the EPA website at xxxxx://xxx.xxx.xxx/brownfields/brownfields-all- appropriate-inquiries-rule-reporting-requirements-checklist-assessment or xxxxx://xxx.xxx.xxx/sites/production/files/2014-08/documents/aai-reporting-fact-sheet-and- checklist-062111-final.pdf. Once the Phase I ESAs are completed, the City plans to enroll Properties 11, 14 and 15 into IDEQ’s Voluntary Cleanup Program. The City will submit an application providing information about the site ownership, location, and history, and a $250 application fee per property to IDEQ. If IDEQ determines the site and the City are eligible, the City then enters into a Voluntary Remediation Agreement (VRA) with IDEQ and pays an initial $2,500 deposit for IDEQ’s oversight costs. IDEQ’s VRA will group all 3 properties into a single cleanup. IDEQ Oversight costs shall include the following: o The review, processing and negotiation of the voluntary remediation agreement; o The review, processing and negotiation of the voluntary remediation work plan; o Conducting public hearing and dissemination of public notices; o Oversight of work performed in accordance with the voluntary remediation work plan; o Issuance of the certificate of completion; o Issuance of a covenant not to sue; o Administrative expenses associated with cost recovery activities.
Site Characterization. As part of the RI, the Respondent shall perform the activities described in this task, including the preparation of Data Summary Reports (DSRs) and the RI report. The overall objective of RI/FS site characterization is to describe areas of the Site(s) that may pose a threat to human health or the environment. This is accomplished by first determining a site's physiography, geology, and hydrology/hydrogeology, and defining surface and subsurface pathways of migration. The Respondent shall identify the sources of contamination and define the nature, extent, and volume of the sources of contamination, including their physical and chemical constituents as well as their concentrations. The Respondent shall also investigate the extent of migration of this contamination and any changes in its physical or chemical characteristics, as well as characterize background conditions in affected media, to provide for a comprehensive understanding of its nature and extent. Using this information, contaminant fate and transport is then determined and projected. During this phase of the RI/FS, the Work Plan, SAP, and HASP are implemented. Field data are collected and analyzed to provide the information required to accomplish the objectives of the study. The Respondent shall notify EPA at least 5 working days in advance of the field work regarding the planned dates for the RI/FS field activities. EPA may shorten the 5-day notification requirement as appropriate (for example, in the case of time-critical sampling such as spring high runoff sampling). In such instances, notification of EPA shall occur as soon as practicable in advance of the field activities. The Respondent shall demonstrate that the laboratory and type of laboratory analyses that will be utilized during Site characterization meet the specific QA/QC requirements and the DQOs of the RI. In view of the unknown site conditions, activities are often iterative, and to satisfy the objectives of the RI/FS it may be necessary for the Respondent to supplement the Work specified in the initial WP to address such unknown conditions. In addition to the deliverables below, the Respondent shall provide quarterly progress reports (also deliverables) and participate in work sessions when requested by EPA. During implementation of field activities, the Respondent may be directed to produce weekly progress reports.
