Featured Projects
Project Summaries
Published summaries that help clients understand iEnvi’s contaminated land, remediation, ecology and broader environmental work in context.
Asbestos Source Assessment and Clearance for a Development Site, Catherine Field
iEnvi provided an independent asbestos source assessment and post‑removal clearance at a greenfield development in Catherine Field. The assessment determined the fragment originated from a historic stockpile, verification…
Read project summaryWaste classification and reuse — Angle Vale, SA
iEnvi characterised ~7,000 m3 of imported soil at Angle Vale (SA), classified it as Waste Derived Fill under SA EPA guidance and enabled reuse on site — reducing…
Read project summaryBrisbane Airport QLD — NBN trench and pit works
iEnvi supported a Tier 1 contractor to deliver NBN trenching and pit works across Brisbane Airport precincts, managing PFAS and asbestos risk, enabling in‑situ waste classification and immediate…
Read project summaryMetropolitan Bus Depots – Environmental Compliance and Investigations
Practical environmental investigations and compliance audits across four Melbourne bus depots established a defensible baseline, identified localised hydrocarbon impacts near refuelling areas, confirmed no landfill‑gas risk from adjacent…
Read project summaryProof in the Soil: PSI and Screening for a Former Sawmill
A concise, defensible Preliminary Site Investigation (PSI) and targeted soil screening at a former regional Queensland sawmill clarified contamination risk (timber-treatment residues, unknown fill, petroleum), updated the conceptual…
Read project summaryFresh Lease, Clean Start: Baseline Check at a Busy Brisbane Logistics Hub
iEnvi completed a targeted, construction‑friendly Baseline Contamination Investigation at a large southern Brisbane warehouse and logistics facility to provide a defensible contamination snapshot for lease handover. The program…
Read project summaryFrom an EPA Clean-Up Notice to a Clear Path Forward
How a targeted investigation, waste classification testing and a pragmatic remediation strategy closed data gaps for asbestos‑contaminated imported fill in north‑west Sydney — turning a NSW EPA Clean‑Up…
Read project summary
From Quarterly to Biannual: Groundwater Monitoring that Keeps Risk Low
Practical groundwater monitoring that confirms monitored natural attenuation, meets regulator expectations, and supports a safe transition from quarterly to biannual sampling with clear triggers and contingency planning.
Read project summary
Landfill Gas Assessment — Bus Depot, Albion VIC
Targeted landfill gas and groundwater assessment at an operating bus depot adjacent to two closed municipal landfills. No methane detected; EPA Victoria action levels not exceeded. Planning condition…
Read project summary
Groundwater Hydrocarbon Sheen vs. Measurable LNAPL
Clear, practical guidance for site owners, developers and environmental managers on recognising a hydrocarbon sheen versus measurable LNAPL in groundwater, when a risk-based duty to notify regulators can…
Read project summary
Ensuring Safe School Development: Soil and Asbestos Investigations in Wollert
iEnvi conducted a Preliminary Site Investigation and soil testing across two lots (≈9.9 ha) in Wollert, Victoria. Eleven surface samples and stockpile checks found no asbestos or contaminant…
Read project summary
Environmental Delineation Investigation at Industrial Site in Northwest Sydney
iEnvi completed a Delineation Investigation (DI) at an aerosol and paint manufacturing site in northwest Sydney. The DI installed three groundwater monitoring wells, 13 soil bores and two…
Read project summary
Confident Acquisition Backed by Targeted Environmental Checks
Targeted, NEPM‑aligned due diligence (PSI + simple tenant lines of enquiry) to give fast, proportionate assurance for acquisition and staged redevelopment of an industrial site in South Australia…
Read project summary
Building Confidently on a Closed Landfill: Gas Risk Assessment and a practical CEMP
How a lean, risk‑focused contaminated‑land approach gave a community sports club a construction‑ready landfill gas assessment and a practical Construction Environmental Management Plan (CEMP) so the clubhouse could…
Read project summary
Baseline Environmental Condition Investigation – Western Melbourne Bus Depot
iEnvi completed a Baseline Environmental Condition Investigation (BECI) at an established western Melbourne bus depot to meet Department of Transport & Planning requirements. Targeted soil and groundwater testing…
Read project summary
Preliminary Site Investigation – Abbotsford Residential Development
iEnvi completed a desk-based Preliminary Site Investigation (PSI) for a proposed residential development in Abbotsford, VIC. The PSI found a low risk of contamination, advised that intrusive soil…
Read project summary
Soil Investigation Clears Path for Safe Construction at Chemical Site, Victoria
iEnvi completed an asbestos- and contaminant-focused soil classification at an industrial chemical site in Melbourne, providing a compliant, cost-effective pathway for excavation and construction of a flammable goods…
Read project summary
Compliance investigation and cost‑effective remediation of asbestos‑impacted soil — Coolaroo industrial site (VIC)
iEnvi investigated asbestos‑impacted soil and groundwater at an industrial site in Coolaroo (VIC). Bonded asbestos in stockpiled soil was removed by hand‑picking (emu‑picking) and the remaining material verified…
Read project summary
iEnvi's 100 Contaminated Land Experts in 2022!
iEnvi expanded its network of independent contaminated‑land sub‑consultants in 2022 to improve local availability, technical depth and delivery flexibility for clients across Australia.
Read project summary
Major NSW Infrastructure Project — Environmental Sampling and Waste Classification (Jenolan Caves Road)
iEnvi provided site sampling, waste classification and VENM assessment for Transport for NSW during Jenolan Caves Road remediation works, enabling compliant reuse and reducing disposal costs while keeping…
Read project summary
Former Oyster Farm Investigation for Residential Development
Targeted soil assessment of a former oyster farm footprint identified low-risk PAH sources (asphalt fragments) rather than residual coal tar, resolving a data gap and enabling council approval…
Read project summary
UPSS Abandonment In‑situ via Foam Filling — Hervey Bay, QLD
iEnvi managed in‑situ abandonment of three underground storage tanks at a restaurant in Hervey Bay, QLD using foam filling to avoid structural impacts. Work complied with AS4976‑2008 and…
Read project summary
Construction Environmental Management Plan for a Sports Complex, South East QLD
Case study: CEMP, ESCP and VMP prepared by iEnvi for a regional council to manage vegetation clearing, earthworks, acid sulfate soils, fauna risk and sediment during construction of…
Read project summary
Microbiologically Influenced Corrosion Preliminary Study — Mornington Peninsula VIC
A 2020 preliminary assessment by iEnvi identified microbiologically influenced corrosion (MIC) risk for planned pipeline works and staging areas on the Mornington Peninsula, recommending targeted metallurgical and microbiological…
Read project summaryWaste Classification and ENM Assessment, Southern Highlands NSW
iEnvi completed an in‑situ waste classification and Excavated Natural Material (ENM) assessment for a Southern Highlands council road upgrade. Of 20 samples collected at 30 m intervals, 17…
Read project summary
Erosion Sediment Control Plan (ESCP), Mornington Peninsula, VIC
iEnvi updated the ESCP for a State Significant development in the Mornington Peninsula using MUSIC stormwater modelling and IECA-aligned erosion and sediment controls to reduce construction-phase sediment risk…
Read project summaryUrgent Preliminary Site Investigations for M&A, Multiple Sites QLD, NSW, SA
iEnvi completed urgent preliminary site investigations at three metal fabrication sites (QLD, NSW, SA) for M&A due diligence, delivering PSI reports within one week and recommending targeted soil…
Read project summary
Groundwater and Hydrogeological Investigation of Five Landfills — north of Brisbane (QLD)
iEnvi reviewed environmental authority compliance, groundwater trends and leachate influence at five council-operated landfill sites north of Brisbane, providing statistical analysis, hydrogeological interpretation and targeted risk‑management recommendations.
Read project summary
Targeted Soil Investigation and Insitu Waste Classification, Brisbane, QLD
Targeted soil investigations and in‑situ waste classifications were completed for trenches for NBN infrastructure across recreational properties in Brisbane. Findings identified localised contamination and supported CEMP recommendations under…
Read project summaryTargeted Soil Investigation, North of Brisbane, QLD
Summary of a targeted soil investigation that confirmed historical lead from a former rifle range on a proposed sports field site north of Brisbane and recommended a Long…
Read project summary
Soil Stockpile Reuse Investigation, Sydney NSW
iEnvi assessed a 1,800 m3 soil stockpile for an inner-west Sydney council to determine suitability for reuse. Targeted test pits and laboratory analysis showed the material generally met…
Read project summaryPreliminary Site Investigations for Potential Acquisition, VIC and WA
Two coatings manufacturing sites in Victoria and Western Australia were assessed by iEnvi through preliminary site investigations (PSI) to identify contamination risks, regulatory implications and recommended next steps…
Read project summary
Operational Environmental Management Plan (OEMP) — Brewery & Wastewater Treatment Plant, Goulburn NSW
iEnvi prepared an Operational Environmental Management Plan (OEMP) and a Pollution Incident Response Management Plan (PIRMP) for a new regional brewery and onsite wastewater treatment plant. The plans…
Read project summary
UPSS and Detailed Site Investigation for a Rural Service Station in Far North Queensland
iEnvi completed an Underground Petroleum Storage System (UPSS) integrity check and Detailed Site Investigation (DSI) at a service station with an attached dwelling in Far North Queensland. Soil…
Read project summary
Law firm engagement for Preliminary and Detailed Site Investigation of Former Service Station, Inner Sydney NSW
iEnvi completed a confidential PSI and UPSS investigation at a commercial inner-Sydney property to define hydrocarbon impacts to soil, groundwater and soil vapour, and to quantify the likely…
Read project summary
Preliminary Site Investigation of a mechanic workshop for finance approval, Wynnum QLD
iEnvi carried out a preliminary site investigation at a mechanic workshop in Wynnum, QLD to support finance approval. Potential contamination sources were inspected and targeted soil sampling returned…
Read project summary
Innovative and cost-effective soil investigation, Sydney NSW
iEnvi completed preliminary soil investigations at multiple inner‑Sydney parks in early 2019. Hydrocarbons were detected in shallow soil at two parks, and targeted leachate testing demonstrated the hydrocarbons…
Read project summary
Cost‑Efficient Remediation for Hydrocarbon Contamination — Newcastle & Wollongong, NSW
Targeted soil sampling at three sites identified shallow hydrocarbon contamination at two locations. iEnvi recommended a cost‑efficient program combining a biological treatment additive (S200 OilGone) with excavation and…
Read project summary
Soil Investigation and Potential Soil Reuse — Morningside, QLD
Shallow soil testing at a residential site in Morningside prior to construction of a childcare centre found concentrations below regulatory assessment criteria for human health and ecological receptors…
Read project summary
Housing Development Application, Sydney NSW
iEnvi completed a preliminary site investigation (PSI) and soil sampling for a Sydney property intended for residential redevelopment. A 253‑page technical report and site history review concluded the…
Read project summary
Nepali Place of Worship — Preliminary Site Investigation (PSI), North Western Sydney, NSW
iEnvi completed a 216‑page Preliminary Site Investigation and soil sampling program for a proposed Nepali place of worship in north‑western Sydney. The PSI found no evidence of contamination…
Read project summary
Acid Sulfate Soil Investigation and Management Plan, Mornington Peninsula VIC
Investigation and ASSMP for an industrial development in Hastings (Mornington Peninsula) including field pHF/pHFOX screening, ~50 samples from 24 bores, SPOCAS laboratory testing, PASS mapping and construction-phase soil…
Read project summary
Recovered Aggregate Reuse — Inner West Sydney Council (NSW)
iEnvi supervised a 2019 resource-recovery program to reuse road asphalt millings as engineering fill for new sports fields. About 19,755 tonnes from 56 roads were reused under Recovered…
Read project summary
Developing an Operational Environmental Management Plan — Campbellfield, VIC
OEMP for an auto vehicle storage and container-packing yard in Campbellfield, VIC. Practical controls for fire, noise, air, soil and stormwater risk, aligned with AS 1940 recommendations and…
Read project summary
Pre‑purchase due diligence: Limited soil investigation and waste classification, Rosehill NSW
A concise case study of a limited pre‑purchase soil investigation at an open car‑park in Rosehill NSW. Investigation identified historical fill with asbestos‑containing material (ACM), minor TRH and…
Read project summary
Asbestos Audit, Coal Mine — Western NSW
Annual asbestos inspection of an electrical control room at a western NSW coal mine found asbestos-containing material in good condition. iEnvi managed a local contractor, reviewed sampling results…
Read project summary
Preliminary Site Investigation for Place of Worship — Western Sydney, NSW
iEnvi completed a 250‑page preliminary site investigation (PSI) and soil sampling program for a community group seeking development consent to use a western Sydney property as a place…
Read project summary
Childcare Development PSI & DSI — Redbank Plains QLD
iEnvi completed a combined preliminary site investigation (PSI) and geotechnical soil investigation for a proposed childcare development at Redbank Plains, QLD. Findings indicated negligible contamination suitable for childcare…
Read project summary
Townhouse Development PSI & DSI — Angle Vale, South Australia
Preliminary site investigations at two Angle Vale properties identified one former landfill (development unviable) and one suitable site, informing a developer’s decision on 50- and 70-lot townhouse villages.
Read project summary
Lease Renewal of Petrol Station: Baseline Environmental Investigation, Granville NSW
Baseline environmental investigation for lease renewal of a petrol station in Granville NSW. Two bores and two additional monitoring wells installed, groundwater and soil vapour assessed — low…
Read project summary
Groundwater Sampling at Ski Lodge, Perisher Valley (NSW)
Low‑flow groundwater monitoring was completed at a decommissioned underground petroleum storage site in Perisher Valley. Results identified no ecological or human‑health groundwater risk; recommendations and compliance notes provided…
Read project summary
UPSS Investigation for Restaurant Business Sale in Hervey Bay QLD
Fast, practical UPSS soil and groundwater investigation for a Hervey Bay restaurant sale. Investigation found no detectable hydrocarbon impact; report enabled settlement and supported follow-up decommissioning work.
Read project summary
Orchard Preliminary Site Investigation and Soil Sampling, Griffith NSW
iEnvi completed a rapid preliminary site investigation (PSI), soil sampling (60 samples) and geotechnical site classification for a 75‑lot low‑density residential proposal on former citrus orchard land in…
Read project summary
South Australia: 2 x PSI on Agricultural Land for 70- and 50-Lot Residential Developments
iEnvi completed two fast-turnaround Preliminary Site Investigations (PSI) near Adelaide, SA. One site showed significant risk from past loam mining and fill and requires a larger investigation, remediation…
Read project summaryFast Environmental Due Diligence Reporting for Petrol Station Expansion, Sanctuary Point NSW
iEnvi delivered a NEPM‑compliant preliminary site investigation and groundwater monitoring report in four business days to meet settlement and bank requirements for a petrol station expansion at Sanctuary…
Read project summary
Water quality sampling for cattle watering and irrigation — Mt French, QLD
iEnvi assessed water from two surface dams and one groundwater bore at Mt French, QLD to determine suitability for livestock watering and feedstock irrigation. Sampling found water suitable…
Read project summary
Contaminated Waste Soil Management — Sydney Sports Ground
iEnvi managed PCB‑ and asbestos‑contaminated fill excavated for light footings at a Sydney western suburbs sportsfield, achieving regulatory approvals for interstate disposal and reducing council disposal costs by…
Read project summary
Auto Wreckers — PSI and Operational Environmental Management Plan, Brisbane
Preliminary Site Investigation (PSI) and a proportionate Operational Environmental Management Plan (OEMP) prepared for an automotive recycling (wrecking) yard in south‑west Brisbane to manage scattered hydrocarbon staining without…
Read project summary
Preliminary Site Investigation for Child Care Centre — Sydney Northern Beaches
Desktop (Phase 1) preliminary site investigation for a proposed child care centre in Sydney’s Northern Beaches. The desktop study identified low contamination potential from on‑site history but recommended…
Read project summary
Townhouse Development Preliminary Site Investigation, Sebastopol (Vic)
Case study: PSI, combined geotechnical and environmental drilling, 30 soil bores to 5 m, 15 primary soil samples. Delivered reporting for planning permit in ~2 weeks; cost reported…
Read project summary
Beneficial reuse of clean or remediated soil — reduce cost and landfill on property developments
Reusing remediated or clean excavated soil on-site or between nearby projects can save hundreds of thousands of dollars, reduce landfill and quarry demand, and speed delivery — if…
Read project summary
Preliminary Site Investigation (PSI) for a Childcare Development Application — Western Sydney
iEnvi completed a rapid Preliminary Site Investigation (PSI) to support a developer converting a post‑war residence to a childcare facility in Western Sydney. The PSI followed NEPM guidance…
Read project summary
Remediation of Coatings Manufacturer Site, Western Sydney
iEnvi provided a site-specific, commercially focused remediation program for a Western Sydney coatings manufacturer, combining UST removal, source-zone treatment and a four-month Multiphase Vapour Extraction campaign to manage…
Read project summary
Mercury Human Health Risk Assessment near Mine Site, Tasmania
iEnvi conducted a targeted soil, sediment and surface water sampling programme near a scheelite mine and municipal water intake in Tasmania to assess potential human health risks from…
Read project summary
Hexavalent Chromium Groundwater and Soil Remediation – Steel Processing
Remediation program for Cr6+ impacted soils and fractured-basalt groundwater at a long‑running steel processing facility. Summary of contamination, in‑situ treatment techniques trialled, pilot results and commercial considerations for…
Read project summary
Sediment and Soil Remediation — Southern China
Overview of a multi‑site sediment and soil remediation programme in Southern China (from 2012). Remediation combined delineation, in‑the‑dry excavation, solidification/stabilisation and beneficial reuse of treated material as engineered…
Read project summary
Asbestos and Waste Tyre Advice — NSW Government Drainage Dam Project
Practical environmental and regulatory advice provided during a NSW Government drainage dam construction project where impacted fill, asbestos and waste tyres were exposed on Crown Land. Advice focused…
Read project summary
Preliminary Site Investigation for Acquisition
Urgent PSI (Phase 1) for an oil depot in Bowen, QLD: fieldwork started within three days to assess above‑ground tanks and diesel‑impacted soil, clarify leasing liabilities and support…
Read project summary
Simple UPSS Petroleum Contamination Groundwater Remediation Solution for Council Depot, Central‑Northern NSW
Practical, cost‑conscious remediation and long‑term management of petroleum contamination at Council depots using a monitored natural attenuation (MNA)‑led strategy supported by targeted product removal, hydrogeological testing and fate‑and‑transport…
Read project summary
Agricultural Soil Remediation — Pilot Treatment for Mercury, Arsenic and Cadmium Impact
Pilot-scale agricultural soil remediation in Gansu/Baiyin addressing Hg, As and Cd in root-zone soils. Combined excavation, mobile Matrix Enhanced Treatment System (METS) soil washing and targeted soil amendments…
Read project summaryNeed advice on a similar site issue?
If one of these matters looks close to your project, property or compliance issue, contact iEnvi and we can help frame the right next step.