For example, the San Francisco Bay Regional Water Quality Control Board developed Environmental Screening Levels (ESLs) for soil and groundwater contamination, whereas the Los Angeles Regional Water Quality Control Board uses different screening levels including Soil Screening Levels, CHHSLs for soil-gas (see below), and Maximum Contaminant . Los Angeles Regional Water Quality Control Board 320 West 4th Street, Suite 200 Los Angeles, California 90015 Subject: Requests for Extension Hi-Shear Corporation, 2600 Skypark Drive, Torrance, California SCP Case No. • Los Angeles Regional Water Quality Control Board (RWQCB) Order No. 2450 | Los Angeles, California 90071 | p. 213.488.5111 | www.ninyoandmoore.com October 21, 2019 . For TPH-cc, the results were compared to the Los Angeles Regional Water Quality Control Board Maximum Soil Screening Levels (MSSLs). . Los Angeles, CA 90015 . This document attempts to ensure that high quality data used for regulatory decision making Cleaning it up first protects wildlife and prevents potentially harmful runoff and migration of hazardous substances. The site was transferred to the Los Angeles Regional Water Quality Control Board (LARWQCB) upon the . The California Regional Water Quality Control Board, San Francisco Region, has recently updated the May 2008 version of the Environmental Screening Levels. For example, the San Francisco Bay Regional Water Quality Control Board developed Environmental Screening Levels (ESLs) for soil and groundwater contamination, whereas the Los Angeles Regional Water Quality Control Board uses different screening levels including Soil Screening Levels, CHHSLs for soil-gas (see below) and Maximum Contaminant . 218, Site ID No. June 28, 2016 . TPH Total petroleum hydrocarbons . Address. RWQCB-LA issued unrestricted no further action letters for soil based on results of the Phase II investigations, screening-level health risk assessments, and implementation of SVE. Information Advisory for Clean Imported Fill Material. . PDF T.W.S. Soil Management Plan, Hollywood Park Racetrack and Casino, 1050 South Prairie Avenue, Inglewood . Partner negotiated remedial levels based on groundwater protective Site Screening Levels and human health protective California Human Health Screening Levels (CHHSLs). Los Angeles Regional Water Quality Control Board . First opened in 1948, the 2,850 acre facility 30 miles northwest of Los Angeles was the site of nuclear energy research by the Department of Energy and rocket testing by the United States Air Force and NASA. The California Regional Water Quality Control Board, Los Angeles Region (Regional Water Board) is the state agency with primary responsibility for the protection of groundwater and surface water quality within major portions of Los Angeles and Ventura counties. Petroleum Underground Storage Tank (UST) sites are addressed by the Board's Underground Storage Tank Program. For the purposes of screening, therefore, 400 mg/kg is recommended for residential soils. Guidance for VOC-Impacted Sites: Soil Screening Levels (RWQCB, 1996a). As you can see the use of site screening levels is extremely varied and are site and regulatory-specific. July 13. California Regional Water Quality Control Board, Los Angeles Region Roadmap to Closure for Leaking Underground Storage Tank Sites (factsheet) August 2007 (updated June 2015) This factsheet describes 10 important steps that the responsible party must take to expedite the closure of leaking underground storage tank (LUST) site. The California Regional Water Quality Control Board, Los Angeles Region (Regional Water Board) is the state agency with primary responsibility for the protection of groundwater and surface water quality within major portions of Los Angeles and Ventura counties. PCE concentrations in soil vapor were generally highest in the 17 Materials), and as directed by the lead regulatory agency for the site (such as the Los 18 Angeles RWQCB or DTSC). 19 Soil removal shall be completed such that remaining contamination levels are below risk-20 based health screening levels for industrial sites established by OEHHA and/or applicable 21 action levels (e.g., Environmental . Over the years, these activities resulted in radiological and chemical contamination to soil and groundwater at the site. HHRA Note 10 addresses the specification of required and . Prior soil sampling identified radionuclides, heavy metals, PCBs, and dioxins at levels that exceed screening levels in the area. To accomplish this, the Regional Water Board oversees the investigation and characterization risk-based screening levels (RBSLs) submitted to DTSC in March 2009. . Soil Screening Level: See section 4.8 of the user's guide. 0286A, Site ID NO. QES has negotiated successfully with regulatory agencies including: United States Environmental Protection Agency (USEPA), Region IX, Cal EPA Department of Toxic Substances Control (DTSC), California Regional Water Quality Control Board (RWQCB) Central Valley, Los Angeles, and Santa Ana Regions, County agencies, including water districts, South Coast Air Quality Management Board (SCAQMD . Los Angeles And Ventura Counties. View the whole guide book Click Here (large file may take sometime) 2402300 Dear Mr. Lin: This Technical Memorandum provides Hi-Shear's response to comments and requirements in iii Disclaimer . Phone. The document presents Environmental Screening Levels (ESLs) for chemicals commonly found in soil and groundwater at sites where releases of hazardous chemicals have occurred. Control Board. ~ EuMuNo G. BRowN JH . Where applicable, analytical data were compared to risk-based screening levels, and estimated risks were compared to risk thresholds recommended by DTSC. Table 4-1:Maximum Soil Screening Levels (mg/kg) for TPH, BTEX and MTBE above Drinking Water Aquifers Distance Above Groundwater Carbon Range C4-C12 C13-C22 C23-C32 >150 feet 1,000 10,000 . Many brownfields in the region have actual or suspected contamination from leaking underground storage tanks. Screening levels for macronutrients would depend on the proposed use of the soil. Currently, there are no additional agency requirements to re-evaluate soil vapor at the Property. PERFORMED AT . Each table reflects a specific combination of soil, groundwater and land-use characteristics that strongly influence the . Contact Types. Benefits of the Los Angeles Water Board-Boeing Draft MOU include: Los Angeles Department of Water and Power. In a letter dated October 24, 2018, the California Regional Water Quality Control Board, Los Angeles Region (Regional Board) requested a Revised Soil Reuse Plan to address . The work was performed by CH2M in response to the Regional Water Quality Control Board, Los Angeles Region (RWQCB) letters to SFPP , dated March 25, 2016, and April 12, 2016 , requesting a shallow soil . California ESL Updates. • Los Angeles Municipal Code (LAMC) 62.80 Drainage of Water into Streets - (a) It is . Application of Environmental Screening Levels (ESLs), Interim Final 2019 should be used to determine appropriate soil vapor attenuation factors. For questions, please contact Steve Ridenour ( steve.ridenour@altaenviron.com ). . Soil Management Plan, Hollywood Park Racetrack and Casino, 1050 . Newport Beach intapolating the tab)~ values, soil screening levels foc a lithology of 6()0/o sand and 400~ silt are calculated as follows. Andersen Environmental Project No. State lead site under the jurisdiction of the Los Angeles Regional Water Quality Control Board (LARWQCB). Regional Water Quality Control Board (RWQCB) Tier 1 Environmental Screening Levels (ESLs) were exceeded. The California Regional Water Quality Control Board, Los Angeles Region (Regional Board) is . RSL Regional soil screening level (EPA) RWQCB Regional Water Quality Control Board Los Angeles Region 320 West 4th Street, Suite 200 Los Angeles, CA 90013 Subject: Proposed Addendum to the Soil Cleanup Goals Defense Fuel Support Point Norwalk 15306 Norwalk Boulevard, Norwalk, California (SCP NO. ESLs address a range of media (soil, groundwater, soil gas . . The most protective value is chosen for the summary table. 1155 & 1165 South Main Street . The Rule requires human health risk assessments, risk-based screening levels, and remediation goals prepared pursuant to the Hazardous Substances Account Act (Health and Safety Code [HSC] §25300 et seq., "Chapter 6.8") to be based on a specified hierarchy of toxicity criteria. TPH (Soil Samples) A Soil Management Plan ("SMP") (Appendix D-1), summarizing prior screening-level subsurface investigations, was prepared by EKI to address localized areas found to contain or suspected to contain . . 355 South Grand Avenue, Ste. For example, the San Francisco Bay Regional Water Quality Control Board developed Environmental Screening Levels (ESLs) for soil and groundwater contamination, whereas the Los Angeles Regional Water Quality Control Board uses different screening levels including Soil Screening Levels, CHHSLs for soil-gas (see below), and Maximum Contaminant . Bruce Rothman - 2 - February 9, 2021 . appropriate soil screening level is the DTSC soil screening level (southern California background level). October. To accomplish this, the Regional Water Board oversees the investigation and Above that level, the document suggests collecting data and modeling blood-lead levels with the IEUBK model. Department of Toxic Substances Control, 2001. As recommended in Title 48 Code of Federal . Los Angeles Regional Water Quality Control Board Revised Meeting Minutes Los Angeles Water Board Meeting June 12, 2014 Metropolitan Water District of Southern California (Board Room) 700 North Alameda Street Los Angeles, California 90013 The meeting was called to Order by Chair Charles Stringer at 9:13 am. The Marcor will coordixrate with the City . Los Angeles Regional Water Quality . n or nc: Noncancer is driving screening level of 0.39 mg/kg and US EPA Region 9 Regional Screening Levels (RSLs) established for a residential setting (US EPA Region 9, 2012) of 0.39 mg/kg. RWQCB Los Angeles Regional Water Quality Control Board . 16638) Dear Mr. Cho: On July 12, 2012, the LARWQCB approved soil cleanup goals for the former Defense Fuel cc: Ms. Jillian Ly - Los Angeles Regional Water Quality Control Board Cancer and noncancer screening levels are presented in the supporting tables. screening characterization (pesticides, herbicides, and heavy metals) lot 39 of tract 7240, ±10.01-acre site, apn 290-190-083 proposed glen ivy senior community and retail/commercial project, temescal valley area riverside county, california 92883 cup200011: phase i review for glen ivy properties, llc 34145 pacific coast hwy #621 R4-2018- 0095, General NPDES Permit No. Response Plan and Remedial Technology Remediation. Which can only mean one thing: that it's time for . Screening levels are used based on DTSC's Human and Ecological Risk Office (HERO) Human Health . Above that level, the document suggests collecting data and modeling blood-lead levels with the IEUBK model. The level of concern associated with those concentrations depends on the likelihood of exposure to soil contamination at levels of potential concern to human health or to ecological receptors. PCE was the only COPC detected above the commercial screening level in the sub-slab soil vapor samples. Regional Water Quality Control Board, Los Angeles Region 320 west 4th Street, suite 200 Los Angeles, California 90013-2343 . . The directive recommends that soil lead levels less than 400 mg/kg are generally safe for residential use. LOS ANGELES, CALIFORNIA 90047 (APN 6002030- - 906) Prepared for: . AA&A reviewed options for the remediation of groundwater . Regional Water Quality Control Board, Los Angeles Region (RWQCB) in September 2008 and was updated by RWQCB in February 2015. In a letter dated June 2, 2020, the California Regional Water Quality Control Board, Los Angeles Region (Regional Water Board) requested an interim remedial action plan for . Region 4. 1404-788 comparison with soil gas screening levels based on the most current DTSC guidance (DTSC . _ 12. PHASE II ENVIRONMENTAL SITE ASSESSMENT REPORT . All Los Angeles Region's groundwaters are considered drinking water, unless they are excluded under the criteria specified in State Water Resources Control Board (SWRCB) Resolution 88-63 . Email. They are intended to help expedite the identification and evaluation of potential environmental concerns at contaminated sites. Los Angeles 10250 Constellation Blvd., Suite 2900 Los Angeles, CA 90067. Advisory - Active Soil Gas Investigations (July 2015) This Cal EPA Advisory was jointly revised and updated July 2015 by DTSC, Los Angeles Regional Water Quality Control Board (LARWQCB), and San Francisco Regional Water Quality Control Board. The samples were analyzed by American Scientific Laboratories (ASL) located in Los Angeles, California, except that soil samples analyzed for total lead were submitted to Curtis & Tompkins, Ltd. located in . Prior soil sampling identified radionuclides, heavy metals, PCBs, and dioxins at levels that exceed screening levels in the area. If a VOC of concern is detected in subslab and/or soil vapor samples at - concentrations that exceed the corresponding San Franci sco Bay Regional Water Quality Control Board Environmental Screening Levels (SFRWQCB Which screening levels to use depends on site-specific conditions and regulatory preference. Interim Site Assessment and Cleanup Guidebook: May 1996 California Regional Water Quality. One parcel where soil vapor sampling in the mid-1990s by a third party had identified detectable levels of cVOCs including trichloroethene (TCE) and 1,1,1-trichloroethane (1,1,1-TCA), with total . specific soil vapor screening levels for tetrachloroethylene (PCE) and trichloroethylene . In a coordinated effort, the Department of Toxic Substances Control, the Los Angeles Regional Water Quality Control Board, and the San Francisco Regional Water Quality Control Board have jointly developed the Advisory -Active Soil Gas Investigations. Benefits of the Los Angeles Water Board-Boeing Draft MOU include: Los Angeles Region, 8 September 2006. PES Response: In our e-mail correspondence to the RWQCB dated August 8, 2005, . Products Culver City, California 90232 RWQCB Case # . SSLs Soil Screening Levels . (TPH-g) exceeding the Regional Water Quality Control Board (RWQCB) Soil Screening Level (SSL) of 500 milligrams per kilogram (mg/kg; assuming a vertical distance to groundwater of 20 to 150 feet). For the purposes of screening, therefore, 400 mg/kg is recommended for residential soils. Los Angeles, California January 2021 LADWP Agreement No. Prior soil sampling identified radionuclides, heavy metals, PCBs, and dioxins at levels that exceed screening levels in the area. CSC began immediate coordination with the Regional Water Quality Control Board, Los Angeles Region (RWQCB) under a newly assigned case manager. Los Angeles Regional Water Quality Control Board 320 West 4th Street, Suite 200 Los Angeles, California 90015 Subject: Requests for Extension Hi-Shear Corporation, 2600 Skypark Drive, Torrance, California SCP Case No. 2450 | Los Angeles, California 90071 | p. 213.488.5111 | www.ninyoandmoore.com October 31, 2018 . TPH, VOCs WESTON conducted a Preliminary Assessment of the Site in 2017 and a Site Inspection at the Site in 2019, during which high levels of chlorinated hydrocarbons were detectedin soil, soil vapor, and groundwater. 2402300 Dear Mr. Lin: This Technical Memorandum provides Hi-Shear's response to comments and requirements in Vapor Intrusion Guidance Documents. Roll Call. . chemicals detected in soil, groundwater, and soil gas at the site. 218, Site ID No. los angeles rwqcb soil screening levels. 4130 Cahuenga Boulevard, Suite 113, Los Angeles, California 91602 818.824.8102 • 818.824.8112 fax . Cleaning it up first protects wildlife and prevents potentially harmful runoff and migration of hazardous substances. Boeing will restrict future land use at the Los Angeles Regional Water Quality Control Board(LA RWQCB) Data Company - Los Angeles, CA The site formerly operated three underground storage tanks (USTs) containing waste . The State Water Board approved measures that will restore instream . 1) should be updated with this noteand resubmitted to the Los Angeles Water Board by December 7, 2020. b. 355 South Grand Avenue, Ste. Los Angeles, California 90013 . soil collapse feature and the pipeline are of interest to both the RWQCB and DTSC; if . The elevated (RWQCB) Soil Screening Levels (SSLs) and USEPA Screening Levels (RSLs) for commercial/industrial land use, where appropriate. 1.1 OVERVIEW OF APPROACH Both CalEPA and the USEPA recommend four basic components in a HHRA: (1) data evaluation, (2) c or ca: Cancer is driving screening level: See section 5.14 of the user's guide. For example, the San Francisco Bay Regional Water Quality Control Board developed Environmental Screening Levels (ESLs) for soil and groundwater contamination, whereas the Los Angeles Regional . TT-08 Project No. 19 Soil removal shall be completed such that remaining contamination levels are below risk-20 based health screening levels for industrial sites established by OEHHA and/or applicable 21 action levels (e . Los Angeles Water Board and Boeing Proposed MOU The Environmental Screening Levels (ESLs) provide conservative screening levels for over 100 chemicals found at sites with contaminated soil and groundwater. SVOCs Semi-volatile organic compounds . LARWQCB Los Angeles Regional Water Quality Control Board PCE tetrachloroethene PPE personal protective equipment RSL EPA Regional Screening Level SSL soil screening level STLC soluble threshold limit concentration TCE trichloroethylene . Cleaning it up first protects wildlife and prevents potentially harmful runoff and migration of hazardous substances. The PDF documents you're about to access are large in size, it will take a while to view or download these files. Los Angeles Regional Water Quality Control Board April 30, 2014 Mr. Douglas Weimer Shell Oil Products, United States . OEHHA memorandum to Los Angeles Regional Water Quality Control Board (2019) • Directs LARWQCB to use 0.03 for a screening health risk assessment (page 2): (213) 367-0706. CAG994004, Waste Discharge Requirements for . . P: 310.858.7888. 102-ENV-T47503B-9.08 Prepared for: City of Los Angeles Department of Water and Power Environmental Affairs 111 North Hope Street Los Angeles, California 90012 Prepared by: Tetra Tech, Inc. 3475 East Foothill Boulevard We in the environmental consulting industry have just gotten used to the Environmental Screening Levels (ESLs) for contaminants in soil, groundwater, soil vapor, and air published by the San Francisco Region Water Quality Control Board (SFBRWQCB) in February of 2016 1. 12 Los Angeles Regional Water Quality Control Board. Guidance for Developing Soil Screening Levels for Superfund Sites, 2002; . Regional Water Quality Control Board Los Angeles Region 320 West 4th Street, Suite 200 Los Angeles, CA 90013 . Table 1 - Summary of Soil Screening Levels References: Apex Companies, LLC, 2017. Los Angeles Regional Water Quality Control Board 320 West 4th Street, Suite 200 . We can also be reached by phone at 562-495-5777. Los Angeles, CA 90012. EPA Regional Screening Levels (RSLs) for residential soil (EPA, 2018), the Regional Water Quality Control Board Santa Ana Region (RWQCB) Reuse Guidelines (RWQCB, 2003) and hazardous . 2020 letter from the Los Angeles Regional Water Quality Control Board ("RWQCB"). 111 N Hope St, Room 1044. For example, the San Francisco Bay Regional Water Quality Control Board developed Environmental Screening Levels (ESLs) for soil and groundwater contamination, whereas the Los Angeles Regional Water Quality Control Board uses different screening levels including Soil Screening Levels, CHHSLs for soil-gas (see below), and Maximum Contaminant . DTSC residential use soil screening level for arsenic in soil is 0.11 mg/kg (DTSC 2019) resulting in a residential cancer risk estimate of 1E-04 for the upper-bound arsenic background screening concentration of 12 mg/kg and a residential cancer risk of 2E-05 for the 95% UCL arsenic concentration of 2.4 mg/kg. Flow Diagram of DTSC Vapor Intrusion Documents. Investigation and cleanup of these sites is undertaken under Board oversight and, in some cases, oversight by a local agency. The Santa Ana, Los Angeles and San Diego Regional Water Quality Control Boards are closely monitoring the situation, providing information to the unified command as needed, and will address water quality issues that fall within their regulatory purview at the appropriate time. Comment 1 - Paragraph 2) RWQCB requested that a screening level for benzene in soil be evaluated. Lead/Public Agency / Project Applicant. 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