EPA recognizes the central role of the states and tribes in making groundwater protection decisions; if a state has an EPA approved Comprehensive State Groundwater Protection Plan or other codified groundwater standards that meet the regulatory criteria, those are the standards that will drive the groundwater cleanup. In addition to their toxicity threats, methane and certain other vapor-forming chemicals can pose explosion hazards depending upon structure-, building-, and site-specific circumstances. Jadeja Summary PDF References This memo explains the purpose of the reforms, the types of remedy updates anticipated, and the process for updating remedies. September 1994, OSWER Publication 9355.4-16FS, EPA 540-F-94-049. July 1987, OSWER Directive 9481.00-6C, EPA 530-SW-87-017. Groundwater pollution remediation involves three remedial approaches: containment, i.e. This document updates and replaces a document issued in May 1989. July 1990, OSWER 9234.2-11FS. This guide applies to new and existing releases of petroleum-based fuels from leaking USTs and to previously closed sites, where the implementing agency has reason to suspect that there may be a potential for petroleum vapor intrusion.
(PDF) Groundwater Pollution: Occurrence, Detection, and Remediation of Official websites use .gov CERCLA Compliance with Other Laws Manual: Part I, Interim Final (PDF)(243pp, 1.8 MB) A lock (LockA locked padlock) or https:// means youve safely connected to the .gov website. This memorandum clarifies that reinjection of treated groundwater to promote in-situ treatment is allowed under section 3020(b) as long as certain conditions are met. Alternate Concentration Limit Guidance, Interim Final (PDF)(127pp,4.5 MB) Topics include remedy goals and performance monitoring, system design parameters, extraction system considerations, appropriate treatment technologies, discharge options, and system controls. This memorandum clarifies the July 1995 memorandum referenced directly below regarding the use of TI waivers at CERCLA sites with dense non-aqueous phase liquid (DNAPL) contamination. 1992 . Remediation Technology Focus Area In Situ Thermal Treatment Technologies: Lessons Learned (PDF)(46pp, 8.7 MB) The section provides guidance on groundwater use determinations. 5 No.
In Situ Treatment Performance Monitoring: Issues and Best Practices (PDF)(15pp, 2 MB) Several of microorganisms and synthetic chemicals have a potential to pollute groundwater. The technical information provided in this report may be useful for regulators, responsible parties, and others assessing and managing vapor intrusion investigation programs. This document provides guidance on state groundwater antidegradation provisions as potential ARARs for CERCLA groundwater and soil cleanups, and how those provisions relate to EPAs policy of returning usable groundwater to its beneficial uses within a reasonable timeframe. July 1995, EPA 540-S-95-500. July 1991,OSWER9234.2-01FS-A. This document is the first volume of three reports that address assessing the potential applicability of MNA as part of a groundwater remedy for plumes with non-radionuclide and/or radionuclide inorganic contaminants.
Groundwater remediation - Wikipedia Groundwater pollution is imminent in most developing countries as a result of increased anthropogenic activities apart from possible natural pollutants. The guidance also identifies presumptive technologies for treatment of extracted groundwater, which can be used to streamline the feasibility study for sites that evaluate pump and treat. 26 (PDF), Clarification of the Role of Applicable, or Relevant and Appropriate Requirements in Establishing Preliminary Remediation Goals Under CERCLA (PDF), Permits and Permit 'Equivalency' Processes for CERCLA On-site Response Actions (PDF), ARARs Q's & A's: Compliance with New SDWA National Primary Drinking Water Regulations for Organic and Inorganic Chemicals (PDF), ARARs Q's & A's: General Policy, RCRA, CWA, SDWA, Post-ROD Information, and Contingent Waivers (PDF), ARARs Q's & A's: State Ground-Water Antidegradation Issues (PDF), ARARs Q's & A's: Compliance with Federal Water Quality Criteria (PDF), CERCLA Compliance with Other Laws Manual: Part I, Interim Final (PDF), CERCLA Compliance with Other Laws Manual: CERCLA Compliance with the CWA and SDWA Fact Sheet (PDF), Update on Providing Alternative Water Supply as Part of Superfund Response Action, Guidance Document for Providing Alternate Water Supplies (PDF), The Role of CSGWPPs in EPA Remediation Programs (PDF), Final Comprehensive State Ground Water Protection Program Guidance (PDF), Guidelines for Ground-Water Classification Under the EPA Groundwater Protection Strategy (PDF), Clarification of the Consultation Process for Evaluating the Technical Impracticability of Groundwater Restoration at CERCLA Sites (PDF), Summary of Technical Impracticability Waivers at National Priorities List Sites (PDF), Clarification of OSWER's 1995 Technical Impracticability Waiver Policy(PDF), Superfund Groundwater RODs: Implementing Change This Fiscal Year (PDF), Consistent Implementation of the FY 1993 Guidance on Technical Impracticability of Ground-Water Restoration at Superfund Sites (PDF), Guidance for Evaluating Technical Impracticability of Ground-Water Restoration (PDF), Presumptive Response Strategy and Ex-Situ Treatment Technologies for Contaminated Ground Water at CERCLA Sites (PDF), Considerations in Ground-Water Remediation at Superfund Sites and RCRA Facilities Update (PDF), Suggested ROD Language for Various Groundwater Remediation Options (PDF), Use of Monitored Natural Attenuation for Inorganic Contaminants in Groundwater at Superfund Sites (PDF), Alternate Concentration Limits (ACLs) in Superfund Cleanups (PDF), Alternate Concentration Limit Guidance, Interim Final (PDF), Guide to Preparing Superfund Proposed Plans, Records of Decision, and Other Remedy Selection Decision Documents (PDF), Use of Monitored Natural Attenuation at Superfund, RCRA Corrective Action, and Underground Storage Tank Sites (PDF), Rules of Thumb for Superfund Remedy Selection (PDF), Superfund Reforms: Updating Remedy Decisions (PDF), A Guide to Principal Threat and Low Level Threat Wastes (PDF), A Guide on Remedial Actions for Contaminated Ground Water (PDF), Guidance on Remedial Actions for Contaminated Ground Water at Superfund Sites (PDF). The following section provides guidance and technical information on the technologies and techniques for treating contaminated groundwater. Secure .gov websites use HTTPS Groundwater Sampling and Monitoring with Direct Push Technologies April 1996, EPA 540-S-95-504. This book contains both practical and theoretical aspects of groundwater resourcesrelating to geochemistry.Focusing onrecent researchingroundwater resources, this bookhelps readersto understand thehydrogeochemistryof groundwater resources.Dealing primarilywith the sources of ions in groundwater, the book describes geogenic and anthropogenic input of ionsintowater.Different organic, inorganic . November 1986, EPA 440-6-86-007 This report summarizes information on the state of technologies available for locating and characterizing dense non-aqueous phase liquid (DNAPL) contaminated sites. Update on Providing Alternative Water Supply as Part of Superfund Response Actions (PDF)(8pp, 4.5 MB) 26 (PDF), Applicability of Land Disposal Restrictions to RCRA and CERCLA Groundwater Treatment Reinjection Superfund Management Review: Recommendation No. 26 (PDF) (3 pp,317 K) August 1998, EPA 542-R-98-005. Estimating Potential for Occurrence of DNAPL at Superfund Sites (PDF)(10pp, 470K) Ground water and surface water are interconnected and can be fully This document clarifies EPA's policy regarding the use of monitored natural attenuation for the remediation of contaminated soil and groundwater. This memo clarifies the effective dates for the major provisions of the Phase IV rule. April 1989, OSWER Directive 9283.1-2FS. June 1990, OSWER 9234.2-09FS. How current and future use of groundwater are determined may be based on EPA designation or designation or by state or tribal authorities. December 1988, OSWER Directive 9283.1-2, EPA 540-G-88-003 Protecting groundwater sources usually requires the combined efforts of many partners such as public water systems, communities, resource managers, and the public. It stresses EPA's commitment to promoting environmental technology development and commercialization. Interim actions where there is moderate to substantial uncertainty or early action containment measures. October 1990, OSWER Directive 9283.1-03 Engineering Issue Paper: In-Situ Chemical Oxidation (PDF)(60pp, 1.2 MB) 40-48. doi: 10.4236/jwarp.2013.54A007.". A Guide to Principal Threat and Low Level Threat Wastes (PDF)(4pp, 236K) Does groundwater protection in Europe require new EU-wide environmental quality standards? December 1989, OSWER Directive 9234.1-06 For technical resources concerning remediation, including technologies for groundwater cleanup, see the following websites and documents: CLU-IN: EPA's Hazardous Waste Cleanup Information While the elevated levels of various inorganic constituents could be attributed to natural pro- 26 (PDF)(3pp, 317K) Final actions where there is little uncertainty that the remedy will be able to achieve remediation goals; Contingency measures or goals where there is high to moderate uncertainty, potential applicable or relevant and appropriate requirements (ARARs) waivers, or a potential containment goal; and. EPA developed this guidance to support implementation of Superfund Reform Initiative 9a: Risk Sharing. May 1992, OSWER Directive 9283.1-06. Cost-Effective Design of Pump and Treat Systems (PDF)(38pp, 423K) This technical guidance presents EPAs technical recommendations based on our current understanding of vapor intrusion into indoor air from subsurface vapor sources. February 1990, OSWER9234.2-06FS. Voice of Environment Newsletter Volume 02, Issue 03, 2019 central theme as Water Pollution. F. Bullough, C. Fenech and H. Bridle, "Advances in Water Quality Monitoring of Inorganics: Current Trends," Journal of Water Resource and Protection, Vol. RCRA section 3020(a) bans hazardous waste disposal by underground injection into a formation which contains an underground source of drinking water (within one-quarter mile of the well), or above such a formation. January 2008, EPA 600-R-08-003.
Groundwater pollution: Occurrence, detection, and remediation of This volume describes the natural processes that may result in the attenuation of the listed contaminants and data requirements to be met during site characterization. The newly created PGMA's population is expected to increase from 5.5 million in 2000 to 9.5 million by 2030 with projected water needs rising from 1,677 million m3 in 2000 to 3,034 million m3 by 2030 according to a study by Texas Commission on Environmental Quality (TCEQ). December 1989, OSWER Directive 9234.1-06 The serious health effects of lead are known learning difficulties in children; problems in the nerves, kidneys, liver and pregnancy risks. Depending upon site- and building-specific circumstances, vapors of potentially toxic chemicals may accumulate to a point where the health of the occupants (e.g., residents, workers, etc.) Evaluation of Subsurface Engineered Barriers at Waste Sites (PDF)(148pp, 1.7 MB), Volume 2, Appendix B (PDF)(244pp, 15.5 MB) This fact sheet provides a strategy for investigating DNAPLs at contaminated sites. A Guide on Remedial Actions for Contaminated Ground Water (PDF)(5pp, 101K) 26 (PDF)(3pp, 317K) It also addresses compliance with Safe Drinking Water Act (SDWA) regulations promulgated in 1991. August 1997, OSWER Directive 9200.4-23 This memorandum clarifies the memorandum, Superfund Groundwater RODs: Implementing Change This Fiscal Year, July 31, 1995, (OSWER Directive 9335.3-03P) regarding the use of technical impracticability waivers at sites with dense non-aqueous phase liquid (DNAPL) contamination. This document gives an overview of the waste management area (WMA) and the supplemental well (SPW) provisions of the RCRA Subtitle C groundwater monitoring regulations of 1988. This memo clarifies the relationship between ARARs and protectiveness. Groundwater is one of the important components in development of any area. Monitored Natural Attenuation of Inorganic Contaminants in Ground Water, Volume 1: Technical Basis for Assessment, Office of Research and Development (PDF)(94pp, 2.5 MB) It addresses: Regional Removal Management Levels for Chemicals (RMLs) Web Area. A Systematic Approach for Evaluation of Capture Zones at Pump and Treat Systems (PDF)(166pp, 20 MB) The primary focus of the report is the evaluation of concentrations of chlorinated Volatile Organic Compounds in and underneath residential buildings based upon EPA's vapor intrusion database as of 2010. October 2007, EPA 600-R-04-027. Presumptive Response Strategy and Ex-Situ Treatment Technologies for Contaminated Groundwater at CERCLA Sites (PDF)(86pp, 779K) Cecilia Fenech "New methods of analysis for water quality monitoring to detect inorganic substances are required to meet the demands of determining concentration, particularly at low detection limits, analysing speciation and even identifying the pollution source. This paper concentrates on two case studies, reviewing the development in monitoring methods, and predicting future trends.
PDF Groundwater Pollution and Remediation - Semantic Scholar The following guidance document addresses the evaluation and management of a single exposure pathway the vapor intrusion pathway. CLU-IN provides information in this focus area on characterization and monitoring technologies for soil gas/air, sediment, soil and groundwater. Guide to Preparing Superfund Proposed Plans, Records of Decision, and Other Remedy Selection Decision Documents (PDF)(182pp, 2.9 MB) DOI: 10.4236/jwarp.2019.111001 PDF HTML XML 3,692 Downloads 16,898 Views Citations Abstract Groundwater and Soil Pollution: Bioremediation DOI: 10.1016/B978--444-52272-6.00035- Authors: Anastasios Zouboulis Aristotle University of Thessaloniki Panagiotis Moussas Newcastle University. The report also discusses research needs. This document clarifies the role of EPA headquarters in groundwater TI decisions and emphasizes that these decisions should be made as soon as sufficient information is available. Applicability of Land Disposal Restrictions to RCRA and CERCLA Ground Water Treatment Reinjection Superfund Management Review: Recommendation No. June 1994, EPA/600/R-94/123 September 1998, EPA 600-R-98-128. January 1992, OSWER Publication 9355.4-07FS. Please click here to see any active alerts. February 1988,OSWER Directive 9355.3-03, EPA/540/G-87/006 This guidance describes key principles, expectations and best practices based on program experience that should be considered during the Superfund remedy selection process. This memorandum explains EPA's interpretation of whether the RCRA land disposal restrictions are applicable or (under CERCLA response actions only) relevant and appropriate to such reinjections or to the remediation as a whole. This technical report presents a summary of indoor air studies that measured background concentrations of Volatile Organic Compounds (VOCs) in the indoor air of thousands of North American residences and an evaluation and compilation of the statistical information reported in these studies.
Ground Water Sample Preservation at In-Situ Chemical Oxidation Sites: Recommended Guidelines (PDF)(16pp, 620K)
(PDF) Groundwater Pollution and Remediation - Academia.edu JavaScript appears to be disabled on this computer. Accidents or other activities at Resource Conservation and Recovery Act (RCRA) facilities sometimes result in releases of hazardous waste or hazardous constituents into soil, groundwater, surface water, sediments, or air.
Republican lawmakers propose plan to combat PFAS pollution in Wisconsin On this page: Guidance for Groundwater Cleanups Guidance for Soil/Sediment Cleanups Guidance for Air (Vapor Intrusion) Cleanups Guidance for Groundwater Cleanups EPA's corrective action goal for groundwater is to prevent adverse effects to human health and the environment, both now and in the future. This EPA website contains information for owners and operators of injection wells, regulators and the public about safe injection well operations to prevent the contamination of underground sources of drinking water. Guidance on Remedial Actions for Contaminated Ground Water at Superfund Sites (PDF)(121pp, 1.8 MB) Remedial Technology Fact Sheet Activated Carbon-Based Technology for In Situ Remediation (PDF)(9pp, 915K) Over the years, new groundwater treatment technologies and approaches have become available allowing flexibility in how cleanup goals can be achieved. This guidance outlines the "phased approach" strategy for addressing contaminated groundwater. Use of this or the preceding document should be augmented by more recent guidance. Use of either document should be augmented by more recent guidance. October 1996, OSWER Publication 9283.1-12, EPA 540-R-96-023 Guidance for Evaluating Technical Impracticability of Ground-Water Restoration (PDF)(27pp, 2.4 MB) It presents the views of the panel, not necessarily those of the Agency. These vapors can enter buildings through cracks in basements and foundations, as well as through conduits and other openings in the building envelope. The RMLs are updated on a biannual basis. July 1996, Office of Research and Development, EPA/625/R-95/005. The paper discusses potential sampling and analytical issues, highlights the mechanisms and impacts on performance monitoring, and provides best practices. Protection measures are actually simpler and less costly than corrective measures for groundwater contamination. The policy puts clear priority on preventing ground-water contamination, recognizes that groundwater is a uniquely local resource tor which States and local governments must assume primary responsibility, and strives to improve EPA's coordination of groundwater activities under all relevant statutes and programs. Use of Monitored Natural Attenuation for Inorganic Contaminants in Groundwater at Superfund Sites (PDF)(83pp, 1.3 MB) The six documents in this TI package are designed to help: Summary of Technical Impracticability Waivers at National Priorities List Sites (PDF)(101pp, 1.7 MB) Official websites use .gov While the elevated levels of various inorganic constituents could be attributed to natural processes, such as geological . Natural attenuation processes, such as bio-degradation, can often be dominant factors in the fate and transport of contaminants. Performance Monitoring of MNA Remedies for VOCs in Groundwater (PDF)(96pp, 1.8 MB) This Ground Water Forum issue paper summarizes light nonaqueous phase liquid (LNAPL) fate and transport and remediation technologies. September 2003, OSWER 9355.4-25, EPA540-R-03-004
Groundwater pollution and remediation: trends and practices It also provides guidance on determining if an alternate supply is needed. EPA developed guidance documents to assist regulators, members of the regulated community, and members of the public understand and implement Corrective Action cleanup of different types of media, including: groundwater, soil, and air (vapor intrusion) after a release has occurred. This study reviewed groundwater pollution and discussed possible remediation measures. This directive establishes and explains the policy that EPA remediation programs generally should defer to state determinations of current and future groundwater uses when based on an EPA-endorsed comprehensive state groundwater protection program (CSGWPP). Therefore, the presence of NAPLs will have a significant influence on the time frame required or likelihood of achieving cleanup standards, and should be evaluated when selecting appropriate remedial actions. Considerations in Groundwater Remediation at Superfund Sites and RCRA Facilities Update (PDF)(13pp, 76K) Clarify the role of headquarters consultation. It covers three major policy areas: risk, remedial alternatives, and groundwater. The guidance recommends remedies be defined as: The guidance includes sample ROD language. This fact sheet summarizes key issues in the development, evaluation and selection of groundwater remedial actions at Superfund sites. Groundwater Issue: Dense Nonaqueous Liquids (PDF)(21pp, 673K) The project also assessed the usefulness of various indirect indicators of DNAPL presence associated with historical site information and groundwater contaminant information. EPA also works with facilities in the short-term to address soil/sediment exposure routes that may cause negative impacts to ecosystems. The Case of Foussana Groundwater in the Central of Tunisia, Voice of Environment Newsletter Volume 02 Issue 03 December 2019 (Water Pollution), General Introduction: The Need to Protect Groundwater, Aquifer Vulnerability Assessment and Wellhead Protection Areas to Prevent Groundwater Contamination in Agricultural Areas: An Integrated Approach, A Review on Volatile Organic Compounds (VOCs) as Environmental Pollutants: Fate and Distribution, Groundwater Contamination Risk Assessment in Crete, Greece using Numerical Tools within a GIS Framework, Present state and future prospects for groundwater ecosystems, Sources and Consequences of Groundwater Contamination, Characterization of the Origin of Pollutants in Groundwater from Biostatistical Tests: The Case of Catchment Ehania, South-Eastern Côte dIvoire, Impact of Land Use and Aquatic Plants on the Water Quality of the Sub-Tropical Alpine Wetlands in India: A Case Study Using Neuro-Genetic Models, A Method for Environmental Data Management Applied to Megasites in the State of Sao Paulo, Brazil, Cost-Effective Green Materials for the Removal of Pesticides from Aqueous Medium, Bioengineering for Water Cleanup: State-of-the-Art Assessment, Contamination and protection of the Cape Flats Aquifer, South Africa, The interdependence of groundwater and urbanisation in rapidly developing cities, Integrated Assessment of Shallow-Aquifer Vulnerability to Multiple Contaminants and Drinking-Water Exposure Pathways in Holliston, Massachusetts, Numerical Simulation for Remediation Planning for 1,4-Dioxane-Contaminated Groundwater at Kuwana Illegal Dumping Site in Japan Based on the Concept of Verified Follow Up, Mass fluxes of xenobiotics below cities: challenges in urban hydrogeology, Arizona Well Owner's Guide to Water Supply, Hydrogeochemical Characterization of Dug Well Water and Its Suitability for Domestic Water Supply in the Village of Passakongo, Dedougou municipality, Burkina Faso, Soil,Groundwater and Marine Pollution (Sources, Effects and Control).