{"schema_version":1,"research_id":"eoa_inverse_innovation_exp05_external_evaluation_20260803","source_assessment_id":"layer_decay_and_expiration_management__environmental_climate:P1:v0","cell_id":"layer_decay_and_expiration_management__environmental_climate","search_queries":["erosion control blanket plastic netting wildlife entanglement removal official guidance","stream restoration erosion control mat monitoring maintenance remove netting permit official","erosion control blanket inspection tracking asset management restoration site research","TRB erosion control products wildlife friendly netting specification removal","site:epa.gov erosion control blanket inspection maintenance remove temporary stabilization records","site:dot.gov erosion control blanket maintenance inspection remove blanket wildlife netting","site:usace.army.mil stream restoration monitoring maintenance erosion control blanket as built records","restoration project asset register erosion control blanket inspection lifecycle GIS","\"The diversity of erosion control products and implications for wildlife entanglement\" PDF","\"wildlife entanglement\" erosion control products study 2020","site:jswconline.org erosion control products wildlife entanglement"],"sources":[{"source_id":"S1","title":"Use of Sustainable Materials for Erosion and Sediment Control Practices","publisher":"National Academies of Sciences, Engineering, and Medicine","url":"https://www.nationalacademies.org/read/29034/chapter/4","source_class":"AUTHORITATIVE_SECONDARY","publication_date":"2025","accessed_at":"2026-08-03","claims_supported":["Temporary erosion and sediment-control practices often remain after final stabilization because of neglect, concealment by vegetation, contractor departure, and workforce constraints.","Synthetic erosion-control materials can cause wildlife entanglement, microplastic pollution, and disturbance during removal.","Existing practice already includes permits, inspection and maintenance records, approved-product lists, removal requirements, and material-substitution initiatives.","Removal itself can disturb vegetation and soil, supporting a dependency and stability check before retrieval."]},{"source_id":"S2","title":"Make the Change to Wildlife-Friendly Erosion Control Products!","publisher":"U.S. Fish and Wildlife Service","url":"https://www.fws.gov/initiative/protecting-wildlife/make-change-wildlife-friendly-erosion-control-products","source_class":"OFFICIAL_GUIDANCE","publication_date":"2024","accessed_at":"2026-08-03","claims_supported":["Plastic netting can create wildlife-entanglement and plastic-debris risks.","Temporary erosion-control products should be removed promptly when no longer required, usually after vegetation establishes.","Material selection and removal decisions must account for erosion-control function and may require civil-engineering or manufacturer expertise."]},{"source_id":"S3","title":"The diversity of erosion control products and implications for wildlife entanglement","publisher":"Journal of Soil and Water Conservation; hosted by USDA Forest Service Research and Development","url":"https://research.fs.usda.gov/treesearch/60454","source_class":"PRIMARY_RESEARCH","publication_date":"2020","accessed_at":"2026-08-03","claims_supported":["A field-observed snake became entangled in fused polypropylene erosion-control blanket mesh.","Review of the TxDOT approved-product list found frequent mesh use, incomplete product information, discontinued or renamed products, and attributes associated with long-term wildlife risk.","Installed blankets are not regularly checked for entangled wildlife, and some product specifications are unavailable or stale.","The research evaluated product attributes and procurement information, not lifecycle governance of successive installations."]},{"source_id":"S4","title":"Water Quality General Certification No. 4100REV: Wetland and Stream Restoration and Creation","publisher":"North Carolina Department of Environmental Quality, Division of Water Resources","url":"https://files.nc.gov/ncdeq/Water%20Quality/Surface%20Water%20Protection/401/Certs%20and%20Permits/GC4100REV.pdf","source_class":"GOVERNMENT_OR_REGULATOR","publication_date":"n.d.","accessed_at":"2026-08-03","claims_supported":["Erosion-control matting containing plastic mesh or twine is prohibited along streambanks and in wetlands unless written approval is obtained.","Permitted work can require inspection, maintenance, self-monitoring, recordkeeping, reporting, and biological monitoring.","Modifications and vegetation or wetland disturbance can require regulatory notification or approval.","A restoration manager alone cannot authorize physical retrieval where permit conditions or regulated impacts apply."]},{"source_id":"S5","title":"Survey of wildlife-friendly temporary and permanent erosion control products and approaches","publisher":"Center for Environmental Excellence by AASHTO","url":"https://environment.transportation.org/teri-idea/survey-of-wildlife-friendly-temporary-and-permanent-erosion-control-products-and-approaches/","source_class":"OFFICIAL_ORGANIZATION_DATA","publication_date":"2014-06-17","accessed_at":"2026-08-03","claims_supported":["An Arizona DOT practitioner proposed research on wildlife-safe erosion-control products, effectiveness, removal hazards, and lifecycle costs.","AASHTO recorded expressed transportation-agency need for practical alternatives and cost-benefit information.","The proposed research scope was under $99,000 and under one year, providing a resource anchor for bounded evidence work rather than a quote for this intervention."]},{"source_id":"S6","title":"Erosion Control Toolbox: Rolled Erosion Control Product (Blanket)","publisher":"California Department of Transportation","url":"https://dot.ca.gov/programs/design/lap-erosion-control-design/tool-1-lap-erosion-control-toolbox/tool-1s-19-recp-blanket","source_class":"OFFICIAL_GUIDANCE","publication_date":"2018-12-14","accessed_at":"2026-08-03","claims_supported":["Blanket selection already considers functional longevity, slope, cost, and permanent vegetation.","Listed blanket types have approximately 12-month functional longevity, showing that age can trigger reassessment but does not prove loss of function.","Use in streams or channels below the 100-year flood elevation requires determination by the responsible engineer."]},{"source_id":"S7","title":"Erosion prevention practices—erosion control blankets and anchoring devices","publisher":"Minnesota Pollution Control Agency","url":"https://stormwater.pca.state.mn.us/erosion_prevention_practices_erosion_control_blankets_and_anchoring_devices","source_class":"OFFICIAL_GUIDANCE","publication_date":"n.d.","accessed_at":"2026-08-03","claims_supported":["Existing specifications classify blankets by functional longevity from roughly three months to three years.","Guidance calls for installation inspection, weekly inspection, post-rain inspection, wildlife checks, maintenance, repair, and replacement.","Higher-longevity blankets can impede wildlife, while blanket removal or replacement must preserve erosion control.","Historical unit prices provide only a limited resource anchor; current site-specific labor, GIS, ecological review, and retrieval costs remain unquoted."]},{"source_id":"S8","title":"Natural Channel Design Review Checklist","publisher":"U.S. Fish and Wildlife Service and Michael Baker, prepared for U.S. Environmental Protection Agency Wetlands Division","url":"https://www.spk.usace.army.mil/portals/12/documents/regulatory/pdf/final-ncd-review-checklist-1-23-08.pdf","source_class":"OFFICIAL_GUIDANCE","publication_date":"2008-01","accessed_at":"2026-08-03","claims_supported":["Stream-restoration designs should include site verification, maintenance triggers, named responsible parties, financing responsibility, monitoring, and measurable performance standards.","Erosion-control matting and other structures can contribute to stability while vegetation and natural armoring develop.","Most projects require maintenance, and monitoring commonly extends at least three years, demonstrating a feasible workflow and continuing owner role.","The checklist does not provide an installation-level lifecycle registry, expiring exceptions, or post-removal tombstones."]}],"problem_evidence":{"support":"STRONG","rationale":"The problem visibly exists at the practice level: a 2025 National Academies synthesis reports that temporary controls often remain indefinitely after stabilization because of neglect and concealment, while official guidance and primary research document entanglement, persistent plastics, incomplete product information, and removal-related soil or vegetation disturbance. What remains unverified is the prevalence of multiple distinguishable installation generations at wetland or stream-restoration reaches specifically.","source_ids":["S1","S2","S3","S4"]},"stakeholder_evidence":{"support":"MODERATE","rationale":"State DOTs, restoration owners, engineers, environmental regulators, and natural-resource staff are identifiable adopters or authorizers. A named Arizona DOT practitioner submitted an AASHTO research need concerning wildlife-safe products, removal hazards, effectiveness, and lifecycle cost, and official guidance assigns inspection, maintenance, engineering, and permitting responsibility. No source expresses demand for this exact layer-level lifecycle register or commits a pilot reach, records, staff, or funding.","source_ids":["S4","S5","S6","S8"]},"prior_art":{"proximity":"ADJACENT_PRIOR_ART","closest_analogues":[{"name":"Living SWPPP, inspection records, maintenance, and closeout removal","similarity":"Existing construction-stormwater practice records controls, inspections, corrective actions, maintenance, and removal after stabilization.","remaining_difference":"It generally governs a project or current control rather than reconstructing sequential, partly buried installation generations with per-layer identity, successor links, expiring exceptions, and tombstones.","source_ids":["S1","S7"]},{"name":"Functional-longevity classes and scheduled ECB inspection","similarity":"Caltrans and Minnesota guidance classify blankets by expected service life and require recurring inspection, repair, wildlife checks, and expert selection.","remaining_difference":"Longevity and inspection schedules do not create a review-only TTL, ranked cross-generation worklist, or mandatory ecological and structural dependency gate before disposition.","source_ids":["S6","S7"]},{"name":"Wildlife-safe procurement, plastic restrictions, and prompt removal","similarity":"Federal and state guidance already promotes natural or net-free materials, prohibits plastic mesh in sensitive settings, and calls for removal when controls are no longer needed.","remaining_difference":"These measures primarily prevent future harm or specify a removal endpoint; they do not govern legacy overlays whose identity, continued stabilizing role, or permit dependencies are uncertain.","source_ids":["S1","S2","S4"]},{"name":"Stream-restoration maintenance and monitoring plan","similarity":"Established guidance requires site visits, measurable monitoring, maintenance triggers, named responsible parties, and multi-year review of bank stability.","remaining_difference":"The monitored object is the restoration reach and its performance, not each deposited erosion-control layer with an explicit lifecycle state and durable deletion record.","source_ids":["S8"]},{"name":"Approved-product-list attribute inventory","similarity":"Ward et al. inventoried erosion-control products, material attributes, degradation characteristics, and information gaps to support risk-aware selection.","remaining_difference":"It inventories product models before or across procurement, not physical installations, deposition order, current dependencies, or authorized retirement at a site.","source_ids":["S3"]}],"distinctive_claim_remaining":"At reaches containing at least two installation generations, adding geospatial layer identities, review-only inspection TTLs, a mandatory ecological/structural/regulatory dependency gate, time-limited exceptions, and post-removal tombstones to ordinary project-file and surface-inspection practice will produce more reproducible, dependency-resolved disposition recommendations without recommending retrieval where a live or unresolved dependency exists. This is falsifiable against the conventional file-plus-surface-inspection workflow; it does not claim that age alone predicts removal or that the register reduces erosion or wildlife mortality without subsequent controlled implementation evidence.","confidence":"MODERATE"},"implementation_evidence":{"support":"MODERATE","rationale":"The component capabilities—GIS/location records, inspection schedules, condition observations, named responsibility, maintenance triggers, engineering review, permit controls, and multi-year monitoring—are established and technically straightforward. A read-only register is therefore implementable with ordinary GIS and field forms. However, no source validates detection of buried or visually similar sequential mats, the proposed scoring weights, reviewer reliability, dependency-check sensitivity, exception governance, or safe retrieval decisions in this setting. Legal authority is site- and permit-specific, and physical disturbance cannot be inferred from inventory authorization.","source_ids":["S1","S4","S6","S7","S8"]},"scores":{"meaningful_impact":{"score":3,"rationale":"The avoided harms—wildlife entanglement, persistent plastics, unnecessary disturbance, and destabilizing removal—matter, but the frequency and attributable burden of sequential legacy layers at restoration reaches are not measured.","source_ids":["S1","S2","S3"]},"stakeholder_pull":{"score":3,"rationale":"Transportation and environmental agencies express need for safer erosion-control practice, lifecycle-cost information, inspection, and maintenance, but no adopter requests or funds the exact lifecycle register.","source_ids":["S4","S5","S8"]},"incremental_advantage":{"score":3,"rationale":"The register could integrate fragmented inspection, maintenance, permitting, and product-longevity practices at the physical-layer level; superiority over a well-maintained SWPPP, asset database, or monitoring plan remains untested.","source_ids":["S1","S6","S7","S8"]},"distinctiveness_plausibility":{"score":3,"rationale":"No exact analogue was found among the opened sources, particularly for sequential-layer identity, dependency-gated retirement, expiring exceptions, and tombstones; bounded search cannot establish world novelty.","source_ids":["S1","S3","S7","S8"]},"technical_implementability":{"score":4,"rationale":"A read-only GIS register and structured dual-review workflow use mature tools and established inspection practices. Subsurface completeness and physical dependency inference are the principal technical limitations.","source_ids":["S6","S7","S8"]},"adoption_authority_feasibility":{"score":3,"rationale":"Restoration owners and managers can authorize inventory and inspection, but regulators, landowners, engineers, and biologists may all control disturbance or retrieval. Site-specific approval pathways remain necessary.","source_ids":["S4","S6","S8"]},"evidence_readiness":{"score":2,"rationale":"The general problem and adjacent practices are well supported, but the candidate's core incremental claim requires a partner reach, project records, field observation, and independent reviewer data.","source_ids":["S1","S3","S5","S8"]},"safety_net_benefit":{"score":4,"rationale":"Review-only TTLs, dependency blocks, uncertainty labels, preservation exceptions, and retained removal records directly address premature or unauditable removal, although their field performance is unvalidated.","source_ids":["S1","S4","S6","S8"]},"scalability":{"score":3,"rationale":"The data model and review rules could transfer across sites, but survey effort, legacy-record quality, habitat sensitivity, permit regimes, and buried-layer uncertainty vary substantially.","source_ids":["S4","S7","S8"]}},"score_confidence":"MODERATE","costs":{"first_evidence":{"band_2026_usd":"10K_TO_50K","scope":"One bounded reach; records reconciliation, non-destructive surface survey, provisional GIS inventory, two qualified reviewers, comparator scoring, and analysis. No probing beyond existing authorization and no removal.","confidence":"MODERATE","assumptions":["Approximately 20–50 mapped or suspected installations","Two field days plus records and analysis time","Existing GIS platform or simple hosted database","AASHTO's under-$99,000 research idea is only a broad upper anchor, not a quote"],"source_ids":["S5","S7","S8"]},"initial_deployment_startup":{"band_2026_usd":"50K_TO_250K","scope":"Configure a production register for one organization, define lifecycle classes and permit fields, migrate available plans, map one reach, train staff, and complete legal and ecological workflow review.","confidence":"LOW","assumptions":["No custom sensing platform","One organization and one initial reach","Substantial manual legacy-record reconciliation","Excludes excavation and major remediation"],"source_ids":["S4","S7","S8"]},"operational_launch":{"band_2026_usd":"50K_TO_250K","scope":"First full inspection cycle across a bounded reach, expert dependency assessments, quality assurance, manager decisions, and preparation of separately permitted staged-retrieval plans; physical retrieval is excluded.","confidence":"LOW","assumptions":["Dozens rather than thousands of layer records","Qualified ecologist and engineer available on a consulting basis","No emergency stabilization or major permit mitigation","Any retrieval is separately estimated after dependency review"],"source_ids":["S4","S6","S7","S8"]},"annual_recurring":{"band_2026_usd":"10K_TO_50K","scope":"Register administration, scheduled and post-event inspections, exception revalidation, limited specialist review, data retention, and annual audit for one bounded reach; repairs and retrieval construction are excluded.","confidence":"LOW","assumptions":["Inspection cadence is integrated with existing monitoring visits","One bounded reach","No major storm-response mobilization","Historical blanket unit prices do not represent modern specialist or lifecycle-governance labor"],"source_ids":["S7","S8"]}},"verified_pipeline_gates":{"externally_supported_problem":{"status":"YES","reason":"Independent official, primary-research, and National Academies sources document legacy controls remaining after stabilization, wildlife entanglement, persistent synthetic material, information gaps, and removal disturbance.","source_ids":["S1","S2","S3"]},"externally_credible_adopter_or_authorizer":{"status":"YES","reason":"State DOTs, restoration owners, environmental regulators, responsible engineers, and natural-resource staff have identifiable inspection, maintenance, product-selection, permitting, or research roles; AASHTO records a named Arizona DOT proponent.","source_ids":["S4","S5","S6","S8"]},"distinct_testable_incremental_claim":{"status":"YES","reason":"The proposed layer-level lifecycle workflow can be compared with conventional file-plus-surface inspection on inventory yield, reviewer agreement, dependency resolution, time, and unsafe disposition recommendations.","source_ids":["S1","S7","S8"]},"bounded_next_evidence_step":{"status":"YES","reason":"A one-reach, non-destructive, dual-review comparison has a fixed scope, observable outputs, explicit comparator, and stopping rules.","source_ids":["S7","S8"]},"no_unresolved_safety_or_authority_stop":{"status":"YES","reason":"The next step can remain read-only and non-destructive. Any probing, vegetation disturbance, or retrieval must be excluded unless separately authorized by the owner, regulator, and qualified stability and ecological reviewers.","source_ids":["S4","S6","S8"]},"credible_cost_scope_and_range":{"status":"YES","reason":"Broad resource-equivalent bands are scoped to staff, GIS, field review, and exclusions, with AASHTO and Minnesota figures as limited anchors. Site quotes are still required before deployment or retrieval.","source_ids":["S5","S7","S8"]}},"next_evidence_step":"Partner with one restoration manager to select a single bounded reach and obtain existing drawings, work orders, monitoring reports, permit conditions, and access authorization. Sample 20–50 mapped or suspected installations spanning material, age, and overlay conditions. Two qualified reviewers independently evaluate the same non-destructive evidence under two randomized workflows: comparator A uses ordinary project files plus current surface-inspection practice; comparator B adds the proposed stable layer identity, deposition order, review-only TTL, lifecycle states, uncertainty fields, and dependency checklist. Compare unique installation yield, unresolved-record rate, inter-reviewer agreement by field and lifecycle state, time per installation, number and type of live dependencies found, and proportion receiving an actionable disposition recommendation. Falsify the near-term claim if the reach contains no sequential accumulation; the lifecycle workflow finds no additional decision-relevant layers or dependencies; agreement does not materially improve and remains below a pre-registered threshold such as kappa 0.60; review time more than doubles without improved dependency resolution; or either reviewer recommends retrieval despite a live or unresolved dependency. Stop without probing or removal and retain all disagreements as audit evidence.","blocking_evidence":["Field prevalence of multiple distinguishable erosion-control installation generations at a real wetland or stream-restoration reach","Access to complete enough drawings, work orders, permit conditions, and monitoring records to test reconstruction value","Independent-reviewer reliability for layer identity, lifecycle state, uncertainty, and dependency classification","Comparative advantage over existing SWPPP, maintenance-plan, or asset-record workflows","Sensitivity of non-destructive observation to buried, fragmented, or visually similar layers","Site-specific adopter commitment, data stewardship rules, and authority boundaries","Current labor, GIS, ecological-review, engineering, permitting, and any retrieval cost quotations","Evidence that later governed disposition improves wildlife or stability outcomes without shifting attention from hydrologic or geomorphic causes"],"research_disposition":"PARTNERED_RESEARCH_PROGRAM","world_novelty_boundary":"The search found adjacent inspection, maintenance, removal, material-substitution, product-inventory, and restoration-monitoring practices but no opened source describing the complete proposed combination at installation-layer resolution. This is not evidence of world novelty. Patentability, freedom to operate, comprehensive prior art, market size, realized impact, and prevalence across restoration sites remain unmeasured.","arm":"COMPLETE_PROPOSAL_PORTFOLIO","candidate_version":0,"controller_recommendation":{"action":"STOP_EMPIRICAL_RESEARCH_NEEDED","repairable":false,"material_progress_observed":true,"progress_targets":["Secure a restoration-manager partner, bounded reach, records access, and written non-destructive survey authorization.","Pre-register the conventional-workflow comparator, lifecycle-workflow rules, sample size, agreement threshold, time-cost threshold, and falsifiers.","Produce a dual-reviewed field inventory demonstrating whether sequential legacy layers and decision-relevant dependencies are actually present.","Measure incremental inventory yield, dependency resolution, inter-reviewer agreement, unsafe-recommendation rate, and staff time against baseline.","Obtain site-specific authority mapping and current cost quotations before any physical retrieval or broader deployment.","If inventory evidence is favorable, design a separately permitted staged-retrieval or retire-in-place study with bank-stability and habitat safeguards."],"reason":"Bounded web research supports the general problem, identifies credible institutional actors, establishes adjacent prior art, and shows that a read-only register is technically plausible. It cannot determine whether the target site's sequential layers exist, whether reviewers can classify them reliably, or whether the lifecycle workflow outperforms existing records and inspections. Those questions require partner records and field observation, so the next decision must follow empirical research rather than more general web search."},"proposal_index":1}