logo logo

Controlled recognized environmental condition

Your Choice. Your Community. Your Platform.

  • shape
  • shape
  • shape
hero image


  • Environmental Protection Agency (USEPA), who are expected to adopt the standard as part of the All Appropriate Inquiries (AAI) rule. False 4. The definition of a recognized environmental condition (REC) definition was clarified in E1527-21: A REC is defined as (1) the presence of hazardous substances or petroleum products in, on, or at the subject property due to a release to the environment; (2) the likely presence of hazardous substances or petroleum products in, on, or at the subject property Mar 3, 2023 · The environmental professional must evaluate any past closure of a contaminated site and ensure that the assessment data associated with the closure meets current standards. 2 Recognized Environmental Conditions— In defining a standard of good commercial and customary practice for conducting an environmental site assessment of a parcel of property, the goal of the processes established by this practice is to identify recognized environmental conditions. Stewart St. These conditions are typically managed through institutional controls, like land use restrictions, or engineering controls, like physical barriers. The U. E1527-13 : A REC resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority, with hazardous substances allowed to remain in place subject to the implementation of Environmental Condition or Business Environmental Risk; and an estimate of the costs necessary to mitigate any Recognized Environmental Condition (including any Controlled Recognized Environmental Condition (CREC)), and any Business Environmental Risk, including any on-going monitoring required per an O&M Plan (as defined herein); A New Type of REC: A new, third type of REC, known as a “Controlled Recognized Environmental Condition” (CREC) can also be identified in association with a subject property. address possible mitigants to address all identified environmental risks; provide a conclusion as to the potential impact on tenant safety, and the marketability or value of the Property for each identified Recognized Environmental Condition or Business Environmental Risk (e In November 2021, the American Society for Testing and Materials (ASTM) released a new standard practice, E1527-21, for Environmental Site Assessments (ESAs). Recognized environmental condition. Based on 4 documents. Section 3. CRECs are a subset of the Recognized Environmental Condition (REC) category and are distinct from Historical Recognized Environmental Conditions (HRECs) in, on, or at a property: (1) due to any release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the environment. ”. Failure to do so could result in not identifying an HREC when in fact, one exists. These releases would be a Recognized Environmental Condition (REC). 7, Conclusions. § 802) within the scope of the assessment investigations to the extent directed in the Jun 12, 2021 · A Phase I site assessment is conducted to look for releases to the environment, or potential releases to the environment – of hazardous substances or petroleum products on or in the vicinity of the property in question. In its direct final rule, EPA references parties that may want to make use of the 2021 standard to qualify for LLPs. cannot include a property where there exists ongoing Apr 9, 2019 · When a Phase I ESA identifies a Recognized Environmental Condition (REC) or the potential for subsurface or surface impacts to a site, in the name of due diligence, a Phase 2 should be sought. Recognized Environmental Condition (REC) is one of the terms used to identify environmental liability within the context of a Phase I Environmental Site Assessment. Smart-Sciences conducted a Phase I Environmental Site Assessment (ESA) in accordance with the ASTM standard E-1527-13 for the purpose of determining whether contamination may be present within the City’s right-of-way prior to replacing stormwater and wastewater pipes. Most importantly, the focus of a Phase I Environmental Site Assessment is to discover recognized environmental conditions (RECs). ASTM E1527-21 requires the report to include the environmental professional’s rationale for a CREC conclusion, in addition to Jun 2, 2014 · Recent changes to the Phase I standards (ASTM 1527-13) redefine environmental conditions as follows: Recognized Environmental Conditions (REC) The presence or likely presence of hazardous substances or petroleum products in, on, or at a property, due to any release to the environment, under any conditions indicative of a release to the environment, or under conditions that pose a material Jun 18, 2018 · EXECUTIVE SUMMARY. This is an alteration of the REC definition in E1527-13, which defined a REC as the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property due to the above-referenced conditions. As a result, the definition is proposed to be simplified while retaining the same basic meaning, except for the creation of the new term “Controlled RECs” (CRECs Sep 29, 2002 · 3. The definition derives from publications by the American Society of Oct 28, 2020 · For examples of controlled recognized environmental conditions, see Appendix X4. com Jan 16, 2018 · Learn what REC, CREC and HREC mean in a Phase I Environmental Site Assessment report and how they affect your transaction. The attention of appropriate governmental agencies. The HREC is one of the various conditions of a Phase 1 Environmental Site Assessment. 5450 Louie Lane, #101 Reno, Nevada 89511 775-322-7969. Freedom of Information Act deleted because it is not used in the revised standard. R. An example of a de minimis condition might be a small, superficial spill of oil that is not anticipated to cause a significant concern. True b. OPS files for the facility indicated that the USTs were removed in 1991. environmental conditions (RECs), historical recognized environmental conditions (HRECs), controlled recognized environmental conditions (CRECs), and non-ASTM issues which may potentially impact the subject property, and ensure that “All Appropriate Inquiry” or “AAI” (as that term is defined by the EPA in 40 C. the regulatory status of the Property (i. Partner is an active member of the ASTM committee tasked Nov 14, 2019 · The purpose of the Phase 1 ESA is to identify Recognized Environmental Conditions (RECs). A Phase I still must include the components of User Responsibilities, Records Review, Site Reconnaissance, Interviews, and Conclusions. § 9604(k)(2)(B) must include controlled substances as defined in the Controlled Substances Act (21 U. Replaced with acronym FR – Federal Register Apr 3, 2022 · All recognized environmental conditions, controlled recognized environmental conditions, and significant data gaps listed in the Conclusions of the report per Section 12. A REC does not mean there is confirmed contamination Apr 9, 2024 · The term Historical Recognized Environmental Condition (HREC) refers to a past release that doesn’t pose a present land-use restriction, nor does it warrant recommendations for clean-up. What is the final step for the phase 1 ESA? The EP must include an opinion regarding appropriate additional investigation; report must include a separate certification statement declaring that the EP meets the qualification of the requirements in the investigation was performed in conformance with 40 CFR part Nov 9, 2021 · On November 1, 2021, the environmental committee of ASTM International approved revisions to the organization’s E1527 standard practice for Phase I environmental site assessments. The most recent Standard (2013) adds two more definitions, controlledrecognized environmental condition (CREC) and. A CREC is defined in the new E1527-21 Standard as “a recognized environmental condition affecting the subject Recognized Environmental Condition. Nevada Division of Environmental Protection-Brownfields Program 901 S. " 16 CRECs must be Oct 26, 2020 · For examples of controlled recognized environmental conditions, see Appendix X4. , 3 W. Another LST facility, Stewart Investments, was identified as the site. EDR – Environmental Data Resources . Basic Rd. , Suite 4001 Carson City, NV 89701. , Suite 4001 Carson City, NV 89701 Task BC03-19 Category 54 Organizational Code 5429 Job Number 6681717. 17 controlled recognized environmental condition, n—recognized environmental condition affecting the subject property that has been addressed to the satisfaction of the applicable regulatory authority or authorities with hazardous substances or petroleum products allowed to Jan 4, 2021 · Form 4251 – September 2020January 2021. Oct 28, 2020 · For examples of controlled recognized environmental conditions, see Appendix X4. The standard introduces a new type of REC, a Controlled Recognized Environmental Condition (CREC), and provides guidance for distinguishing RECs from Historical RECs. This is hugely significant because a Phase l Environmental Site Assessment is conducted in the vast majority of the 5. The ASTM Standard defines a Controlled Recognized Environmental Condition (CREC) as “ a recognized environmental condition resulting from a past release of hazardous Controlled Recognized Environmental Conditions (CRECs): CRECs are conditions where hazardous substances or petroleum products have been controlled but could still pose a risk if disturbed. 1 Discussion—Identification of a controlled recognized environmental condition is a multi-step process that A Controlled Recognized Environmental Condition is a REC by definition. F. S. in Henderson, Nevada, and hereafter referred to as the Subject Property. 17 controlled recognized environmental condition—recognized environmental condition affecting the subject property that has been addressed to the satisfaction of the applicable regulatory authority or authorities with hazardous substances or petroleum products allowed to remain in place subject to implementation of required controls (e. Parties may wish to consider A recognized environmental condition resulting from a past release of hazardous substances or petroleum products that has been addressed to the May 18, 2013 · ③CREC (Controlled Recognized Environmental Condition):汚染がある土地でリスクベースの浄化が完了し、これ以上浄化措置が必要ないことを規制当局が認めており、産業・商業用地としては利用できるが、住居用地としては使用できない、利用制限がある状態 Apr 23, 2020 · What is a Recognized Environmental Condition (REC)? A REC is the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property. Visit our Facebook Visit our Instagram County: Miami-Dade. Basically, a REC is any possible source of contamination. The ASTM Standard defines a recognized environmental condition (REC) as the presence of likely presence of any hazardous substances or petroleum products on a property under conditions that indicate an existing Jan 19, 2022 · ASTM E1527-21 contains the same basic framework that environmental professionals currently follow in ASTM E1527-13. Contact #ESEPartners today if you have questions about a REC on your property! #duediligence Jul 25, 2021 · The Phase l Environmental Site Assessment Standard E1527-13 will sunset in late 2021, eight years from its approval on November 6, 2013. Part 312) is conducted A Controlled Recognized Environmental Condition (CREC) is defined by the ASTM Phase 1 Environmental Study Standard E1527 – 13 as a past release of hazardous substances or petroleum products that occurred in connection with the property but has been addressed to the satisfaction of an applicable regulatory authority through issuance of a No Call Us: (800) 419-4923 Search for: Services. 7, including the environmental professional's Jan 17, 2023 · Identifying a historical recognized environmental condition requires a multistep process. 5 EC – Engineering Control abbreviation added. David Friedman 901 S. Nov 25, 2013 · In fact, E1527-03 explains in Note 3 that "A condition identified as a controlled recognized environmental condition does not imply that the environmental professional has evaluated or confirmed the adequacy, implementation or continued effectiveness of the required control that has been, or is intended to be, implemented. The current definition for Recognized Environmental Conditions, or REC (the main thing that EPs try to identify during ESAs), has been found to be confusing to some people. A REC is a potential environmental impairment, a CREC is a managed impairment and an HREC is a resolved impairment. 17 controlled recognized environmental condition—recognized environmental condition affecting the subject property that has been addressed to the satisfaction of the applicable regulatory A Controlled Recognized Environmental Condition (CREC) [is defined as] a recognized environmental condition resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority, with hazardous substances or petroleum products allowed to remain in place Dec 22, 2022 · Recognized Environmental Condition Types. a. Controlled Recognized Environmental Condition (CREC) Define Controlled Recognized Environmental Condition. Controlled REC and Historical REC Jan 24, 2022 · ASTM E1527-21 also revised the designations for controlled recognized environmental conditions (CRECs) and historical recognized environmental conditions (HRECs). On November 6th, 2013, ASTM published the long anticipated new standard for conducting Phase I Environmental Site Assessments, ASTM E1527-13. A condition determined to be a de minimis condition is not considered a recognized environmental condition (REC) nor a controlled recognized environmental condition (CREC). Designation of a CREC versus a HREC hinges on the level of environmental contamination present. Controlled Recognized Environmental Conditions (defined by the ASTM standard as a recognized environmental condition resulting from a past release of hazardous substances or Dec 13, 2023 · 1. Jan 19, 2020 · What is a controlled recognized environmental condition? CREC: Controlled Recognized Environmental Condition Simply, a CREC indicates that there is known contamination on a property that is being managed by controls, such as use restriction or mitigation methods, which you are required to follow. The previous ASTM Phase 1 ESA standard (E1527-2005 A New Type of REC: A new, third type of REC, known as a “Controlled Recognized Environmental Condition” (CREC) can also be identified in association with a subject property. Controlled Recognized Environmental Condition (CREC) is a term introduced in the ASTM E1527 standard for Phase I Environmental Site Assessments (ESAs). Nov 18, 2021 · The most significant modifications in the new E1527-21 Standard Practice include the following: New Definition of “Recognized Environmental Condition” (REC) – as previously stated, the goal Apr 18, 2016 · What is a “recognized environmental condition” or REC? Definition “the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to any release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a Mar 17, 2015 · HRECs are conditions which occurred in the past, but have been addressed to the satisfaction of the state, and the property can be used as if it were never contaminated. C. be a de minimis condition is not a recognized environmental condition nor a controlled recognized environmental condition. occurs in connection with the property b. Property Condition Assessment Reports Apr 4, 2017 · Historical Recognized Environmental Conditions (HRECs), Controlled Recognized Environmental Conditions (CRECs), or de minimis conditions have been identified associated with the Site at this time. A CREC is defined in the new E1527-21 Standard as “a recognized environmental condition affecting the subject property that has been addressed to the satisfaction Feb 23, 2016 · To that end, we present five common issues we see when working with clients in the diligence processes. Sample 1 Sample 2 Sample 3. They should note the following: Nov 2, 2021 · Arguably, one of the most important terms of a Phase I ESA is the “Recognized Environmental Condition” (REC), and the associated “Controlled Recognized Environmental Condition” (CREC) and “Historical Recognized Environmental Condition” (HREC); these are the conditions that indicate the subject property is, was, or may be impacted by Dec 21, 2021 · Persons conducting an environmental site assessment as part of an EPA Brownfields Assessment and Characterization Grant awarded under CERCLA 42 U. The executive summary should also state if a Historical Recognized Environmental Condition previously existed at the Property and the current regulatory status, if applicable, or Business Environmental recognized environmental conditions (REC) that can be cause for interpretation and sometimes debate. EMI – Emissions Inventory Data . The standard has been submitted to the U. David Friedman. FIFRA – Federal Insecticide, Fungicide and Dec 20, 2022 · With the approval of the ASTM E1527-21 standard, the EPA will sunset the ASTM E1527-13 standard, which will no longer be a recognized method for complying with the AAI as of December 15, 2023. Environmental professionals must document that process in the Phase I ESA report Findings and Opinions section(s), including their rationale for concluding that a finding is a historical recognized environmental condition. As a follow-up to publication of the E1527-21 Standard by ASTM, EPA will begin the process of revising the AAI Rule to incorporate the current version CREC – Controlled Recognized Environmental Condition . Conditions determined to be de minimis conditions are not recognized environmental conditions or controlled recognized environmental conditions. Friedman: Attached is the report titled Phase I Environmental Site Assessment, 0 Lake St. , and 302 Tin St. 3. The Controlled REC concept was introduced to address contaminated sites that have received risk-based regulatory closure, where no further remediation is required but residual contamination still exists at a site and the property is subject to Jan 12, 2022 · Learn about the changes and clarifications in the new ASTM E1527-21 standard for conducting Phase I Environmental Site Assessments (ESAs). 2. , (APN: 007 Controlled Recognized Environmental Conditions (CREC) is a type of environmental concern that indicates a property has known contamination that is being managed with controls. ASTM E1527-13 will take effect immediately and will replace the E1527-05 standard as the industry best practice for Phase I ESAs. Failing to meet the current Phase I standard and its requirements. A Historical Recognized Environmental Condition a. The following de minimis conditions were identified during this Phase I ESA: • An approximate 1-acre area in the southwest portion of the Subject Property, on the inside of Environmental Condition or Business Environmental Risk; and an estimate of the costs necessary to mitigate any Recognized Environmental Condition (including any Controlled Recognized Environmental Condition (CREC)), and any Business Environmental Risk, including any on-going monitoring required per an O&M Plan (as defined herein); Dec 12, 2013 · Controlled Recognized Environmental Condition (CREC): E1527-05 : Not defined. 2 NOTE 2—For example, if a leaking underground storage tank has been cleaned up to a commercial use standard, but does not A Controlled Recognized Environmental Condition (CREC) [is defined as] a recognized environmental condition resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority, with Mar 29, 2022 · Support for Controlled Recognized Environmental Condition (CREC). According to the ASTM E 1527-13, it is defined as “the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property. PM has extensive experiences completing Phase I ESAs and is approved Recognized Environmental Condition means the presence, or likely presence, of any regulated substances in, on, or at a property due to a release to the environment; conditions indicative of a release to the environment; or under conditions that pose a threat of a future release to the environment. ESA – Environmental Site Assessment . 7, including the environmental professional's Form 4251- ENVIRONMENTAL DUE DILIGENCE REQUIREMENTS. Recognized environmental condition was simplified and clarified to help bring greater consistency to the identification of RECs Historical REC was clarified to exclude any REC. . Attn: Mr. A new ASTM Phase I standard (E1527-13) took effect in 2015. This report presents the findings of a Phase I Environmental Site Assessment (ESA) performed on the property identified as APNs 179-18-810-039, 179-18-810-040, and 179-18-810-041 and addressed at 7 W. See full list on geoforward. Jun 18, 2013 · Recognized Environmental Condition (REC) New definition: “the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to any release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future Newly added acronym for Controlled Recognized Environmental Condition, inadvertently omitted from the previous revision. EPA – United States Environmental Protection Agency . 17. Compliance with the old standard no longer satisfies the “all-appropriate-inquiries” requirement of federal law. CONCLUSION. occurs where the past release has been addressed to the satisfaction of the applicable regulatory authority c. Introduction of emerging contaminants as a non-scope item with the Phase I Environmental Site Assessment. ASTM E1527-21 requires the report to include the environmental professional’s rationale for a CREC conclusion, in addition to including copies of the underlying regulatory documentation supporting that CREC conclusion. Dear Mr. Page 1 June 2019. The 2021 standard clarifies the definition of RECs, including other types of RECs such as Controlled Recognized Environmental Conditions (CRECs), which are RECs that have been addressed to some degree, and Historical Recognized Environmental Conditions (HRECs), which are RECs that have been addressed to the satisfaction of regulatory Property Use Limitations will generally be noted in conjunction with an identified Controlled Recognized Environmental Condition. Controlled REC definition was developed to categorize certain RECs A Recognized Environmental Condition (a REC) is “the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to any release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the Oct 26, 2020 · For examples of controlled recognized environmental conditions, see Appendix X4. g Apr 22, 2022 · A REC is a recognized environmental condition. Dec 22, 2022 · 3. 1. A CREC is defined in the new E1527-21 Standard as “a recognized environmental condition affecting the subject property that has been addressed to the satisfaction Feb 16, 2023 · The new standard could expand the scope of what is considered a Recognized Environmental Condition (REC) and provides an option to conduct an investigation into the presence of emerging contaminants, including per- and polyfluoroalkyl substances (PFAS), at a subject property. The presence of an REC or other contamination can significantly reduce the value of a property while leaving a buyer, owner or lender exposed to hidden risk. A REC is the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: Under conditions that pose a material threat of a future release to the environment. historicalrecognized environmental condition (HREC). Prepared by: Broadbent & Associates, Inc. 6 million commercial and industrial real estate transactions in the United States each year Mar 30, 2022 · Support for Controlled Recognized Environmental Condition (CREC). Former Section 3. RE: Phase I Environmental Site Assessment, 0 Lake St. 1 Discussion—Identification of a controlled recognized environmental condition is a multi-step process that must be reflected in the report's Findings and Opinions sections, as described in sections 12. 2. Apr 16, 2014 · The definition does not create new analyses or documentation, as Phase I ESAs that were compliant with ASTM E 1527-05 would have discussed CRECs in the context of being either a Recognized Environmental Condition (REC) or a Historical Recognized Environmental Condition (HREC). Partner is Ready. The project is approximately 160 acres and is located Key Terminology Revisions: The terms “Recognized Environmental Condition” (REC); “Controlled Recognized Environmental Condition” (CREC); and “Historical Recognized Environmental Condition” (HREC) are key in the evaluation of property risks, but even with the definitions added to the current standard, the terms were subject to constitutes a controlled recognized environmental condition (CREC) to the site. On the surface these designations appear straightforward,until they are put Nov 30, 2013 · Controlled Recognized Environmental Condition (CREC): A recognized environmental condition which involves a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority and that is subject to activity and use limitations. 1 From ASTM E1527-13. , (APN: 007-311-21) Reno, Nevada 89501. Under the E 1527-13 version, an HREC is a condition that was in the past, but is not now, a REC. 6, including the environmental professional’s rationale for concluding that a finding is a historical recognized environmental condition: Dec 20, 2022 · 3. FINDS – Facility Index System . 10 FOIA – U. ASTM E1527-21 restructures certain areas, which can be most easily identified by the redline Guidance Regarding REC vs HREC vs CREC – In addition to RECs and HRECs, another third type of REC, known as a “Controlled Recognized Environmental Condition” (CREC) can also be identified in association with a subject property. 0 INTRODUCTION 2. , whether the Property complies with Environmental Laws). A contamination release can come from improperly functioning hydraulic Jun 10, 2022 · A de minimis condition is not a recognized environmental condition. (One year from the date of publication of the final rule in the Federal Register). 1 Purpose This investigation was requested to identify, to the extent feasible, Recognized Environmental Conditions in connection Nevada Division of Environmental Protection-Brownfields Program Attn: Mr. e. A confirmed petroleum release was reported from the facility in 1991 and received regulatory closure in 1997. A new benefit of the E1527-21 Standard is the provided examples of RECs, Historical Recognized Environmental Conditions (HRECs), Controlled Recognized Environmental Conditions (CRECs) and Business Environmental Risks (BERs) in the appendices. 5 and 12. -13). 7, including the environmental professional's recognized environmental conditions (RECs), historical recognized environmental conditions (HRECs), and/or controlled recognized environmental conditions (CRECs) on the Subject Property in accordance with the 2013 ASTM International standard practice for the performance of Phase I Environmental Site Assessments (ASTM E 1527-13). FID – Facility Inventory Database . Building Assessments & Engineering. ” Controlled REC “…a recognized environmental condition resulting from a past release of hazardous Oct 25, 2020 · A Recognized Environmental Condition (a REC) is “the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to any release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the Nevada Division of Environmental Protection-Brownfields Program Attn: Mr. These new examples showcase how to categorize the identified Environmental Condition or Business Environmental Risk; and an estimate of the costs necessary to mitigate any Recognized Environmental Condition (including any Controlled Recognized Environmental Condition (CREC)), and any Business Environmental Risk, including any on-going monitoring required per an O&M Plan (as defined herein); identifying recognized environmental conditions (RECs), historical recognized environmental conditions (HRECs), and/or controlled recognized environmental conditions (CRECs) on the property in accordance with the 2013 International standard practice ASTM for the performance of Phase I Environmental Site Assessments (ASTM E 1527The U. Identification of Standard Historical Sources to be reviewed as part of every Phase I Environmental Site Historic Recognized Environmental Condition a past release of any hazardous substances or petroleum products that has occurred in connection with the property and has been addressed to the satisfaction of the applicable regulatory authority or meeting unrestricted use criteria established by a regulatory authority, without subjecting the These recognized environmental conditions have not resulted in any known or obvious activity or use limitations (AULs) for the property. means a Recognized Environmental Condition resulting from a past Release of Hazardous Materials or petroleum products that has been addressed to the satisfaction of the applicable Governmental Authority (for example, as evidenced by the issuance of a no further action letter or equivalent, or meeting risk-based criteria established by the “Discussion—Identification of a historical recognized environmental condition is a multi-step process that shall be reflected in the report’s Findings and Opinions section(s), as described in 12. A Controlled Recognized Environmental Condition (CREC) [is defined as] a recognized environmental condition resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority, with Nov 22, 2021 · The revised 2021 ASTM standard, which updates the 2013 Standard, includes certain key changes that will affect how purchasers and environmental professionals conduct environmental due diligence. ih ym ra qf ie ky nv fy jj zv