{"id":989756,"date":"2022-11-22T00:16:56","date_gmt":"2022-11-22T03:16:56","guid":{"rendered":"https:\/\/biogroup.com.ar\/environmental-passives\/"},"modified":"2026-05-19T07:25:39","modified_gmt":"2026-05-19T10:25:39","slug":"environmental-passives","status":"publish","type":"page","link":"https:\/\/biogroup.com.ar\/en\/environmental-passives\/","title":{"rendered":"Environmental Passives"},"content":{"rendered":"\t\t
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<\/div>\n
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\n \ud83c\udfed Phase I \u00b7 Phase II \u00b7 Phase III \u00b7 RBCA \u00b7 ASTM E1527 \u00b7 EPA \u00b7 Due Diligence \u00b7 Site Closure\n <\/div>\n

\n Environmental Passives<\/span>\n <\/h1>\n

\n Assessment, Management and Diagnosis with Scientific Support\n <\/p>\n

\n Biogroup addresses environmental liabilities from a comprehensive perspective \u2014\n combining high-precision technical diagnosis,\n regulatory expertise and results-oriented management strategies<\/strong>.\n We identify, quantify and manage environmental risks in a technically rigorous\n and economically efficient manner.\n <\/p>\n

\n Phase I and Phase II environmental site assessments following ASTM E1527 \u00b7 ASTM E1903 \u00b7\n EPA standards. Site assessments designed to collect the minimum data necessary for a\n cost-effective solution \u2014 always with the ultimate goal of defining the widest range\n of corrective action alternatives.\n <\/p>\n

\n
Phase I \u00b7 II \u00b7 III<\/div>\n
Full assessment cycle<\/div><\/div>\n
ASTM E1527<\/div>\n
International standard<\/div><\/div>\n
Own laboratory<\/div>\n
Field\u2013lab\u2013engineering integrated<\/div><\/div>\n
+35 years<\/div>\n
Contaminated site expertise<\/div><\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n \u26a0\ufe0f What is an environmental passive?<\/div>\n
\n An environmental passive (environmental liability) is any existing impairment\n derived from past or present activities \u2014 representing a source of latent risk\n that can affect soils, groundwater, air, ecosystems and, in many cases, compromise\n operational continuity, asset value or project viability.<\/div>\n
\n \u2022 Soil and\/or groundwater contamination
\n \u2022 Historical or hazardous waste accumulation
\n \u2022 Abandoned infrastructure with environmental impact potential
\n \u2022 Sites with history of spills or inadequate practices
\n \u2022 Industrial areas undergoing closure, transfer or conversion\n <\/div>\n <\/div>\n
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\n \u2705 Why correct identification matters<\/div>\n
\n An unidentified or underestimated environmental passive is a hidden liability that\n compounds over time \u2014 expanding contamination, increasing remediation costs and\n accumulating regulatory and legal exposure. Early identification and quantification\n is always less expensive than delayed discovery.<\/div>\n
\n \u2713 Reduce legal and financial risks
\n \u2713 Avoid future sanctions and contingencies
\n \u2713 Optimise remediation costs through early intervention
\n \u2713 Increase asset value with documented environmental status
\n \u2713 Demonstrate regulatory compliance to authorities and buyers\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n The four-phase environmental site assessment framework<\/span>\n
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\n From desktop review to corrective action \u2014 a structured, tiered approach<\/div>\n
\n Biogroup follows a procedure in accordance with ASTM E1527 (Phase I) and ASTM E1903\n (Phase II) \u2014 designed to collect the minimum data necessary to provide a cost-effective\n characterisation, always focused on defining the widest range of remedial alternatives.<\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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I<\/div>\n
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\n Phase I \u2014 Preliminary Environmental Site Assessment<\/div>\n
\n ASTM E1527 \u00b7 Desktop review \u00b7 Historical analysis \u00b7 No intrusive work<\/div>\n <\/div>\n <\/div>\n <\/div>\n
\n

\n A Phase I ESA assesses the historical use of a property with the intent of identifying\n the presence or likely presence of hazardous substances or petroleum products \u2014 the\n \"Recognised Environmental Conditions\" (RECs). No soil or groundwater samples are collected.\n All work is desktop-based.<\/p>\n

\n
Historical review<\/div>
Aerial photographs, Sanborn maps, historical records, prior reports, regulatory databases<\/div><\/div>
Site inspection<\/div>
Visual survey of current and past uses, structures, equipment, storage areas, drains<\/div><\/div>
Interviews<\/div>
Current owners\/occupiers, key site personnel, local regulatory officials<\/div><\/div>
Regulatory records<\/div>
Environmental databases \u2014 spill records, permit history, underground storage tanks, hazardous waste<\/div><\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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II<\/div>\n
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\n Phase II \u2014 Environmental Site Investigation<\/div>\n
\n ASTM E1903 \u00b7 Intrusive sampling \u00b7 Soil & groundwater characterisation<\/div>\n <\/div>\n <\/div>\n <\/div>\n
\n

\n A Phase II ESA involves intrusive soil and groundwater sampling to confirm or refute\n the RECs identified in Phase I. Biogroup designs sampling programmes to collect the\n minimum data necessary to characterise the site adequately \u2014 avoiding under-sampling\n that leaves uncertainty and over-sampling that wastes budget.<\/p>\n

\n
Sampling design<\/div>
Statistical or targeted sampling plan based on Phase I findings, conceptual site model and contaminants of concern<\/div><\/div>
Field investigation<\/div>
Soil borings, phreatimeter installation, groundwater sampling, soil gas surveys \u2014 per EPA SW-846 protocols<\/div><\/div>
Laboratory analysis<\/div>
Biogroup's own laboratory \u2014 full contaminant panel per Table 9 Ley 24.051, EPA SW-846, site-specific requirements<\/div><\/div>
Site characterisation<\/div>
Contaminant identification, concentration mapping, extent of contamination, exceedance of screening levels<\/div><\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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III<\/div>\n
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\n Phase III \u2014 Risk Assessment & Remedial Action Planning<\/div>\n
\n RBCA \u00b7 ASTM E1739\/E2081 \u00b7 Definitive conceptual model \u00b7 Exposure pathway analysis<\/div>\n <\/div>\n <\/div>\n <\/div>\n
\n

\n Phase III integrates Phase II characterisation data into a formal risk assessment\n and remediation decision \u2014 determining whether contamination poses an unacceptable\n risk to human health and the environment and, if so, defining site-specific cleanup\n goals and the most appropriate corrective action technology.<\/p>\n

\n
Conceptual site model<\/div>
Definitive CSM \u2014 sources, pathways, receptors \u2014 the foundation for all risk calculations<\/div><\/div>
Exposure pathway analysis<\/div>
Ingestion, dermal, inhalation from soil and groundwater to all relevant receptor groups<\/div><\/div>
RBCA risk assessment<\/div>
ASTM E1739\/E2081 tiered approach \u2014 screening values, site-specific risk-based concentrations, probabilistic assessment<\/div><\/div>
Remedial action plan<\/div>
Technology selection, comparative evaluation of alternatives, cost-benefit analysis, implementation timeline<\/div><\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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IV<\/div>\n
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\n Phase IV \u2014 Remediation & Site Closure Verification<\/div>\n
\n In situ \/ ex situ technologies \u00b7 monitoring \u00b7 closure certification<\/div>\n <\/div>\n <\/div>\n <\/div>\n
\n

\n Design, implementation and monitoring of the selected corrective action \u2014 through\n to demonstration that cleanup goals have been achieved and formal site closure\n certification from the environmental authority. Biogroup provides the complete\n service, including construction management, analytical monitoring, progress\n reporting and closure dossier preparation.<\/p>\n

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Technology selection<\/div>
Landfarming \u00b7 biopiles \u00b7 ISCO \u00b7 SVE \u00b7 pump-and-treat \u00b7 MNA \u2014 evaluated and selected per Phase III findings<\/div><\/div>
Design & implementation<\/div>
Engineering design, construction supervision, system installation and commissioning<\/div><\/div>
Remediation monitoring<\/div>
Periodic soil and groundwater sampling to document progress toward cleanup goals<\/div><\/div>
Site closure<\/div>
Closure dossier preparation, regulatory submission and formal closure certification<\/div><\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Differential capabilities \u2014 the Biogroup advantage<\/span>\n
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\n The real integration of field, laboratory and engineering \u2014 not three separate vendors<\/div>\n
\n
\ud83d\udd2c<\/div>
Own analytical laboratory<\/div>
Advanced analytical capability in-house \u2014 full soil and groundwater contaminant panels, GC-MS, ICP-MS, HPLC-MS\/MS. No outsourcing of analytical work means full control of data quality, turnaround time and chain of custody.<\/div><\/div><\/div>
\ud83c\udf10<\/div>
True field-laboratory-engineering integration<\/div>
The same team that designs the sampling programme collects the samples, analyses them and interprets the results \u2014 eliminating the communication gaps that arise when consultants, samplers and laboratories are separate organisations.<\/div><\/div><\/div>
\ud83c\udfed<\/div>
Complex industry experience<\/div>
Petrochemical, agro-industrial, energy, chemical and manufacturing \u2014 Biogroup has experience in the most technically demanding contamination scenarios: NAPL, chlorinated solvents, heavy metal plumes, complex mixed contamination.<\/div><\/div><\/div>
\u2696\ufe0f<\/div>
Regulatory process compatibility<\/div>
Studies developed to be compatible with LAD (L\u00ednea de Acci\u00f3n Directa), EIA, environmental audits and provincial regulatory approval processes \u2014 with registrations in the Santa Fe Official Environmental Expert Registry and the Ministry EIA Consultant Registry.<\/div><\/div><\/div>
\ud83c\udfaf<\/div>
Technical defence and decision support<\/div>
Our approach is oriented toward technical defensibility \u2014 reports that withstand scrutiny in regulatory proceedings, due diligence reviews and environmental litigation.<\/div><\/div><\/div>
\ud83d\udcb0<\/div>
Minimum data \/ maximum value<\/div>
Site assessments designed to collect only the minimum data necessary for the objective \u2014 avoiding expensive over-sampling while ensuring the characterisation is adequate for decision-making.<\/div><\/div><\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Typical applications \u2014 when environmental passives assessment is required<\/span>\n
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Industrial asset transactions<\/div>
Phase I\/II ESA for due diligence in industrial asset purchases, mergers and acquisitions. Environmental liability quantification for price adjustment and indemnification clauses.<\/div><\/div>
\ud83d\udd12<\/div>
Plant closure and site conversion<\/div>
Characterisation of contamination accumulated during plant operation. Remediation to achieve closure certification and allow site conversion to new use (industrial, commercial or residential).<\/div><\/div>
\ud83d\udccb<\/div>
Regulatory compliance<\/div>
Environmental passive identification and management plan for compliance with provincial environmental authority requirements. Regularisation before SAyDS, OPDS and municipal authorities.<\/div><\/div>
\ud83c\udfd7\ufe0f<\/div>
New development assessment<\/div>
Phase I\/II for greenfield and brownfield developments \u2014 confirming the site is clean before construction investment, or quantifying contamination for remediation cost estimation.<\/div><\/div>
\ud83c\udd98<\/div>
Environmental contingency response<\/div>
Emergency response to accidental spills and releases \u2014 rapid assessment of extent of contamination, immediate containment measures and corrective action plan.<\/div><\/div>
\u2696\ufe0f<\/div>
Environmental litigation support<\/div>
Expert witness site characterisation for environmental liability disputes \u2014 defensible analytical data, rigorous exposure pathway analysis and damage quantification.<\/div><\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Contaminants of concern \u2014 full analytical capability<\/span>\n
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\n Depending on the nature of the chemicals of interest, Biogroup uses numerous detection\n techniques to maximise field sampling efficiency and minimise laboratory costs \u2014 focusing\n analytical effort where it matters most.<\/p>\n

\n
TPH fractions<\/div>
GRO \u00b7 DRO \u00b7 MRO \u00b7 TX-1005\/1006 \u00b7 GC-FID<\/div><\/div>
BTEX & VOCs<\/div>
Benzene \u00b7 toluene \u00b7 ethylbenzene \u00b7 xylenes \u00b7 GC-MS purge-and-trap<\/div><\/div>
Chlorinated solvents<\/div>
TCE \u00b7 PCE \u00b7 DCE \u00b7 vinyl chloride \u00b7 GC-MS<\/div><\/div>
PAHs<\/div>
16 EPA priority \u00b7 HPLC-FLD \u00b7 GC-MS \u00b7 benzo(a)pyrene<\/div><\/div>
Heavy metals<\/div>
ICP-MS \u00b7 As\/Cd\/Cr\/Pb\/Hg\/Ni\/Zn \u00b7 EPA 3050B digestion<\/div><\/div>
Cr(VI)<\/div>
Hexavalent chromium \u00b7 colorimetric\/IC \u00b7 EPA 3060A<\/div><\/div>
Pesticides<\/div>
Organochlorine \u00b7 organophosphate \u00b7 glyphosate \u00b7 HPLC-MS\/MS<\/div><\/div>
PCBs \/ Dioxins<\/div>
GC-ECD \u00b7 HRGC-HRMS \u00b7 TEQ reporting<\/div><\/div>
MTBE & oxygenates<\/div>
Fuel ethers \u00b7 GC-MS \u00b7 groundwater mobility<\/div><\/div>
Cyanides<\/div>
Free + total \u00b7 colorimetric \u00b7 IC<\/div><\/div>
Fluorides<\/div>
Ion chromatography \u00b7 electrode<\/div><\/div>
Inorganic parameters<\/div>
pH \u00b7 conductivity \u00b7 alkalinity \u00b7 nitrates \u00b7 sulphates<\/div><\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Regulatory framework and standards<\/span>\n
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\ud83c\udde6\ud83c\uddf7 Argentine regulations<\/div>\n <\/div>\n
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\n \u2022 Ley 24.051<\/strong> \u2014 Hazardous Waste Law \u00b7 Decree 831\/93 Table 9 (soil guidelines)
\n \u2022 Ley 25.675<\/strong> \u2014 General Environmental Law
\n \u2022 SAyDS Resolution 97\/2019<\/strong> \u2014 Contaminated sites registry
\n \u2022 Provincial regulations<\/strong> \u2014 Santa Fe \u00b7 Buenos Aires \u00b7 C\u00f3rdoba
\n \u2022 LAD<\/strong> (L\u00ednea de Acci\u00f3n Directa) \u2014 direct action compliance pathways
\n \u2022 OPDS<\/strong> \u00b7 SAyDS<\/strong> \u00b7 municipal environmental authorities\n <\/div>\n <\/div>\n <\/div>\n
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\ud83c\udf10 International standards<\/div>\n <\/div>\n
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\n \u2022 ASTM E1527<\/strong> \u2014 Phase I ESA Standard Practice
\n \u2022 ASTM E1903<\/strong> \u2014 Phase II ESA Standard Guide
\n \u2022 ASTM E1739<\/strong> \u2014 Risk-based corrective action (petroleum)
\n \u2022 ASTM E2081<\/strong> \u2014 Risk-based corrective action (generic)
\n \u2022 EPA SW-846<\/strong> \u2014 Soil and waste analytical methods
\n \u2022 EPA RSLs<\/strong> \u2014 Regional Screening Levels
\n \u2022 ISO 10381<\/strong> \u2014 Soil sampling methods
\n \u2022 Dutch intervention values<\/strong> \u2014 RIVM reference criteria\n <\/div>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Official registrations<\/span>\n
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Provincial registry<\/div>\n
Official Registry of Environmental Consultants, Experts and Expert Witnesses<\/div>\n
Province of Santa Fe, Argentina<\/div>\n <\/div>\n
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Ministerial registry<\/div>\n
Registry of Environmental Impact Assessment Consultants<\/div>\n
Ministry of Environment, Argentina<\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n Related services<\/span>\n
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\ud83c\udf31 Sites Remediation \u2192<\/div>
ISCO \u00b7 landfarming \u00b7 bioremediation \u00b7 MNA \u00b7 closure<\/div><\/a>
\ud83c\udf0d Geology & Hydrogeology \u2192<\/div>
Phreatimeters \u00b7 MODFLOW \u00b7 RT3D \u00b7 VES<\/div><\/a>
\ud83c\udfde\ufe0f Soil Monitoring \u2192<\/div>
TPH \u00b7 BTEX \u00b7 metals \u00b7 PAHs \u00b7 Table 9<\/div><\/a>
\ud83d\udca7 Underground Water \u2192<\/div>
Groundwater sampling \u00b7 freatimeters \u00b7 HPLC-MS\/MS<\/div><\/a>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n Phase I \u00b7 Phase II \u00b7 Phase III \u00b7 RBCA \u00b7 ASTM E1527 \u00b7 EPA \u00b7 Due Diligence\n <\/div>\n
\n Need to assess or manage an environmental passive?<\/div>\n
\n Contact us to evaluate your case and develop a strategy tailored to your needs.\n Each site is unique \u2014 Biogroup provides custom solutions with strong technical\n support and a clear orientation toward results.\n <\/div>\n \n Consult an expert \u2192<\/a>\n
\n \ud83d\udcde +54 341 425-6431<\/span>\n \ud83d\udcde +54 341 447-4486<\/span>\n \u2709 biogroup@biogroup.com.ar<\/span>\n \ud83d\udccd 3 de febrero 920 \u00b7 Rosario, Argentina<\/span>\n Mon\u2013Fri 08:00\u201317:00<\/span>\n <\/div>\n <\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

🏭 Phase I \u00b7 Phase II \u00b7 Phase III \u00b7 RBCA \u00b7 ASTM E1527 \u00b7 EPA \u00b7 Due Diligence \u00b7 Site Closure Environmental Passives Assessment, Management and Diagnosis with Scientific Support Biogroup addresses environmental liabilities from a comprehensive perspective \u2014 combining high-precision technical diagnosis, regulatory expertise and results-oriented management strategies. We identify, quantify and manage…<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"_joinchat":[],"footnotes":""},"class_list":["post-989756","page","type-page","status-publish","hentry"],"yoast_head":"\nEnvironmental Passives - BioGroup<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/biogroup.com.ar\/en\/environmental-passives\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Environmental Passives - BioGroup\" \/>\n<meta property=\"og:description\" content=\"🏭 Phase I \u00b7 Phase II \u00b7 Phase III \u00b7 RBCA \u00b7 ASTM E1527 \u00b7 EPA \u00b7 Due Diligence \u00b7 Site Closure Environmental Passives Assessment, Management and Diagnosis with Scientific Support Biogroup addresses environmental liabilities from a comprehensive perspective \u2014 combining high-precision technical diagnosis, regulatory expertise and results-oriented management strategies. 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