Section 2- Phase 1 ESA Flashcards
Purpose of a Phase 1? (2)
- To gather sufficient information to estimate the likely hood of contamination exists
- determine if a phase 2 is required
Results of Phase 1 guides decisions of
- Property management
- options for land use
- Investments
- remedial actions
Phase 1 Ultimate Objective
to determine RISK
What is RISK in regards to ESAs
Measurement of the severity of health effects arising from exposure to a substance (duration and frequency) via different media
Measurement of the severity of health effects arising from exposure to a substance (duration and frequency) via different media is…
RISK
What does [ ] represent?
Concentration
RISK is determined by what two factors?
Evaluating _____+_______
Exposure + Concentration
4 components of Phase 1
- Desktop Review
- Site Visit
- Interviews
- Documentation of results
3 Components of a desktop review
- Company file review
- Air photo review
- Review of published info
______ is conducted to:
- Confirm current/historical land uses/activities
- ID CoPC and APEC
- Establish the framework of future site investigations
Desktop Review
Company file review:
Information to review (6)
- process diagrams, site plans
- historical records (spills, releases)
- property layout (historical/present)
- previous assessments
- Inventory of UST/AST
- reclamation certificates
Company file review:
Constraints (3)
- Incomplete
- Disorganized
- none available
Air Photo Review:
Sources for photos? (3)
- provincial/federal sites
- local library/archives
- Google earth
Name some data you should collect when looking at air photos (8 total)
- Year site was established
- List of site features, buildings, pits
- layout of infrastructure
- spills/vegetation stress
- proximity of water or residences
- Land use/veg cover
- Topography, drainage
- proximity to other contamination
Limitations posed by air photos: (5)
Photo quality frequency of photos coverage of site visible indicators availability
_____ requires review of all “reasonably determined” records. Sources vary by industry.
CSA Guidelines
CSA guidelines stand for?
Canadian Standards Association guidelines
Who is responsible for the collection and storage of information regarding:
spills since 1975
pipeline information
well information “well files”
AER
Public records review:
Where can you get a records of all registered wells in a given area? (usually 2km radius)
AENV
7 places of public records to check
- AENV - water wells
- Maps
- Fire insurance maps/records
- Property use directories
- Title searches/Tax rolls
- PTMAA
- Environmental law center
PTMAA
Petroleum Tank Management Association of Alberta
registration of active takes and inventory of abandoned
Where can you gather information regarding soils, geology, bedrock make up, hydrology, topography?
Maps
Why would you check fire insurance records?
USTs (spills, leaks, removal, past remediation)
Where would you check to find previous owners?
Property use directories,
Title searches at alberta registrations,
Tax assessment rolls
Where would you find past environmental reinforcements?
Environmental Law Center
Phase 1 ground truthing is done to verify results of desktop search (T/F)
True
Steps of a phase 1 site assessment
- Walk around
- Pictures
- Site sketch
- record of visual evidence (checklist)
- locate APECs
- Limitations of site visit
- Notes regarding a limitations of a phase 2
Visual evidence to consider (checklist)
- Receptors/pathways
- Surface staining
- reduced veg growth
- visible salt crystals
- Off site sources
- surrounding land use/topography/drainage/vegetation
What is an example of a site assessment limitation?
Snow, paved, access. Not ruled out and should be visited during phase 2
Where can you get an inventory of all hazardous materials on a site?
MSDS or inventories
When are interviews ideally done?
during the site visit
People who you can interview
Site owners operators/staff former employees neighbors regulatory officials
three things to ask in an interview
- Location of present and former infrastructure
- details of past spill and clean up procedures
- waste management practices
What two bodies drive the reporting structure?
Client and regulator
E I S R F E C S Q R A
Executive summary Introduction Site Description Results Findings Evaluation of Findings Conclusion/recommendation Statement of limitations Qualifications of assessor References Appendix
Which section would you list APECS and COPC in the phase 1 report?
Findings
Which section would you list records review, site visit and interviews in the phase 1 report?
Results
Which section would you justify a phase 2 in the phase 1 report?
Conclusion
When are Phase 1 assessments required for all upstream oil and gas sites according to AENV
Prior to reclamation. It is submitted with wellsite reclamation certificate application
CSA Z76801 “_______ __ _____”
ASTM E152700 “________ ________ ___ ____: _______ __ ___ _______”
- Phase 1 ESA
2. Standard practices for ESA: Phase 1 ESA Process
ADWDA
Assessing Drilling Waste Disposal Areas
NDWD
Notification of Drilling Waste Disposal
