Introduction to Natural Resource Damage Assessment NRDA

Transcription

1 Introduction to Natural Resource Damage Assessment NRDA

2 Topics Overview Legal: Laws and Regulations NRDA Process Restoration in the Arctic Summary 2

3 Top Three Things to Know Three liabilities from oil spills (public does not pay) Injury to public natural resources Response 3 rd party claims NRDA is restoration focused Restoration is considered early and throughout the process Injuries (effects) are balanced against, and directly scaled to restoration NRDA is a Legal Process Must demonstrate causality between release and injury using defensible science Effects of oil must be on top of baseline condition 3

4 NRDA is based in the Oil Pollution Act (1990) Applies Public Trust Doctrine Polluter pays compensatory not punitive Requires cooperation with polluter Requires public involvement Restoration must restore, rehabilitate, replace, and acquire the equivalent of injured natural resources and services

5 Cooperating with the PRP Required under NRDA rules Trustees decide timing, duration, decision making process, level of participation, agreements, public involvement Funding and participation agreement Outcome = legal agreement (a consent decree) 5

6 An oil spill is like a house fire

7 Response is intended to stop further harm

8 Response is intended to stop further harm

9 Restoration rebuilds

10 Restoration compensates for interim loss

11 OPA 90 Definition iti of Injury an observable or measurable adverse change in a natural resource or impairment of a natural resource service... incorporates destruction, loss, and loss of use.

12 Natural Resource Damage Assessment Amount of restoration implemented must EQUAL amount of injury (harm) that occurred

13 Goal of NRDA To Balance Injury with Restoration Injuries Caused by Spill Allow Natural Recovery Restore/ Rehabilitate Build More/Create Buy More/Acquire Restoration Choices

14 Restoration Benefits Resource Services Interim Lost Resource Services Benefits of Active Restoration Baseline Service Level B A Time Incident Primary Restoration Begins Full Recovery with Active Restoration Full Natural Recovery 14

15 Damage Assessment Responsibilities Coordinate with response Integrate concerns into cleanup Assess injuries: What was harmed? Evaluate Restoration: What can be done to Return resources to baseline? Compensate for loss? Oversee and/or implement restoration projects Recover assessment costs 1 5

16 NRDA Does Not Address Civil and criminal liability (CWA, OCSLA) Damages to real or personal property Net loss of taxes, royalties, rents, fees, and other lost revenues by federal or state governments Loss of profits or loss of earning capacity due to injury to natural resources Net costs of public services 16

17 Natural Resource Damage Assessment Release Pathway PREASSESSMENT Ephemeral Data Collection Activities Injury Assessment/Restoration Planning Injury Assessment Restoration Selection Public and Community Involvement Exposure Injury Field Studies Dt Data Evaluation Modeling Injury Quantification Project Identification Project Scaling Draft Restoration Plan Final Restoration Plan MUST ESTABLISH ALL ELEMENTS RESTORATION IMPLEMENTATION

18 3 Steps of NRDA Preassessment What happened? Injury Assessment What harm was done? Restoration What will be done to compensate for loss? 18

19 Step 1: What Happened? Conceptual Modeling: How is oil reaching natural resources? Physical transport pathways (floating on water, current driven transport, stranding on shorelines, sinking, evaporation) Biological pathways (dermal contact, ingestion of water, prey consumption, inhalation) 19

20 Major Currents 20

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22 Step 1 continued What animals and habitats could be exposed? What life stages are most sensitive to oil effects? How could they be affected (what injuries would you expect? ) How are people using the resources? 22

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24 Step 2: Injury Assessment Verify pathways Identify resources at risk Evaluate exposure Measure injuries and compare with baseline Habitat Animals Human Use

25 Defining Baseline Condition but for the spill Comparison to pre spill conditions? Comparison to appropriate reference sites? Consider confounding factors and competing hypotheses Physical degradation of habitat Presence of other contaminants Climate change 25

26 Evaluating Exposure Water concentrations Sediment/soil concentrations Oil degradation rates Invertebrate tissue Fish bile Blood parameters Photographs Computer models 26

27 Evaluating Injury (1) Field measurements Lab studies Extrapolate tapoatefrom previous spills/literature Modeling Biological population estimates Life history tables Toxicity values Production foregone

28 Evaluating Injury (2) Human Use Injuries Document geographic and temporal extent of lost use Boat access, fishing, hunting areas 28

29 Making Legal Case Endpoints must be related to oil effects Endpoints should relate to restoration Drive sampling with hypotheses Use pre approved protocols where possible Clear, accurate, and complete documentation is required Quality documentation Chain of Custody Photos 29

30 Natural Resource Services Fundamental to the determination of interim losses and for scaling restoration Have value because humans care about them Functions that one resource performs for another or for humans

31 Categories of Natural Resource Services Ecological Cultural/Historical l l Sustenance Commercial Recreational Passive/Existence

32 Step 3: Restoration Planning Compensate for what ht is injured What is injured? How badly is it injured What could be replaced/restored/acquired? How much is needed?

33 Scale to Compensate for the Injury Over Time Determine how severe injury is, how long it will last Determine benefits of restoration, how soon benefits will occur, how long they will last Determine how much restoration is needed to offset loss over time

34 Possible Arctic Restoration Options Marine mammals Birds Vegetation Fish passage Marine debris removal Cultural enhancement 34

35 Restoring Marine Mammals As ice changes, polar bear and walrus spend more time on land Reduce negative polar bear human interactions Minimize disturbance of walruses Habitat Protection/Conservation Areas

36 Restoring Birds Limiting factors: prey base, predation, habitat limited; other sources of mortality contamination, disturbance, hunting

37 Restoring Birds Large scale invasive predator removal Bury powerlines that kill birds in fog Clean up existing contaminated sites along coast Habitat protection (acq isition easements) Habitat protection (acquisition, easements) wetlands mitigation banks

38 Restoring Vegetation Seed or transplant sod or wetland plants: Native grass cultivars or climax species (indigenous species) Fertilizer (generally phosphorus) h Thermokarst (depressions from melting permafrost) No action may be the most appropriate course

39 Restoring Coastal Habitat Fish passage/fish habitat Placement of culverts to prevent thawing of the permafrost and subsequent settling of the culvert Culverts placed at correct depths Maintaining flow during late summer

40 Restoring Human Use Citizen Environmental Monitoring (Canada) water temp, fish health, abundance data based on western science and traditional knowledge Camp Sivunniigvik (Camp Sivu) language preservation Camp Qunqaayu (Culture Camp) Kuroshima Oil spill settlement t re introduce cultural values and language promote awareness of natural resources passing on the knowledge of the elders

41 Summary Oil Pollution Act requires restoration of injured resources Injuries can be ecological or socioeconomic/cultural Understanding baseline is important Restoration of oiled Arctic natural resources will be challenging Village, local, and regional perspective is critical

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