Sri Lanka decision proposal
Tell us what to change or add.
Archived decisions
Open official sources and access guidance
Open a decision below. Check the area, period, inputs, result and proposed next step.
Use Change example to try different values. Use Data needed to check the fields and sources. The land-use change decision has its own comparison views.
Record your corrections below, then download your answers or print them.
Check reported proposal overlap with the cited geological constraint.
Validation required
Fictional default example · 2025.
What the selected record shows. The supplied overlap is 18 ha within the 75 ha assessed footprint, or 24%. Check the cited boundary and source records before interpreting the overlap.
Next step. Check the matching footprint, source boundary and applicable conditions. Prepare overlap review in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Reported hectares do not establish a site's engineering suitability or permission.
100 × union of constraint overlap / proposal footprint. Count intersecting constraint areas once. The areas/counts are supplied records; this decision view does not calculate intersections, distances or locations.
Geometry preparation must use matching coordinate systems, dated boundary editions and valid spatial predicates. Overlap supports referral; it does not determine ownership, permission or site safety. A static reference image does not verify these supplied measurements or boundaries.
Other required records: Site footprint; geological units; faults; map scale; uncertainty; project type.
Calculation appendix
Find catchments without confirmed geological-mapping coverage.
What the selected record shows. 30 ha are known to be uncovered; 5 have unknown coverage. 65% are confirmed covered.
Next step. Check the records behind the uncovered and unknown groups. Prepare coverage follow-up in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Coverage alone does not establish the required scale, accuracy or investigation need.
100 × distinct covered eligible units / eligible frame. Known uncovered = frame − covered − unknown.
Count each eligible unit once for the selected service and period. Received messages, attendance, adoption and outcomes are separate measures.
Other required records: Catchment frame; geology coverage; survey dates; scale; priority requirements.
Find missing geological and site evidence before a detailed investigation.
What the selected record shows. The required evidence is incomplete for this site investigation case. The items below identify what must be obtained or reconciled.
Next step. Obtain the missing evidence listed below. Prepare evidence request in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
A completed list does not establish foundation or mineral suitability.
Check each required item and retain its reference. A documented item is not a scientific, legal or institutional approval.
Evidence completeness alone cannot establish suitability, eligibility, safety, permission or method validity.
Other required records: Geology; slope; groundwater; project footprint; hazard evidence; expert requirements.
Compare reported geological-map class areas between source editions.
What the selected record shows. Difference: -10 affected sites.
Next step. Check the matching source records before interpreting the change. Prepare change comparison in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
An area change does not identify every parcel needing a new site appraisal.
Later/comparison value minus Earlier/source value. Relative change = 100 × difference / Earlier/source value when the earlier value is positive.
Other required records: Map editions; unit boundaries; affected sites; classification changes; effective dates.
Check the documents needed for an authorised mining-application review.
What the selected record shows. The required evidence is incomplete for this mining licenses case. The items below identify what must be obtained or reconciled.
The example does not grant a mineral licence or extraction right.
Other required records: Application; mineral; location; land rights; current conditions; environmental approval.
Compare reported extraction with matching authorised quantities and periods.
What the selected record shows. Difference: -10 m³.
Next step. Check the matching records and reasons for the difference. Prepare difference review in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
A numerical difference is not a final determination of unauthorised extraction.
Observed value minus Planned value. Relative change = 100 × difference / Planned value when the earlier value is positive.
Other required records: License; approved volume; reported extraction; measured extraction; period; unit.
Find missing rehabilitation evidence before a closure referral.
What the selected record shows. The required evidence is incomplete for this mine rehabilitation case. The items below identify what must be obtained or reconciled.
A filled checklist does not certify ecological recovery or discharge obligations.
Other required records: Mine ID; approved plan; works; inspection evidence; financial provisions; conditions.
Check reported extraction overlap with cited hydrological and ecological constraints.
Overlap is a referral input, not proof of impact or permission status.
Other required records: Extraction footprint; river geometry; reservations; sediment evidence; permits; constraints.
Check the supplied quarry-related observation against its method and comparison bounds.
What the selected record shows. The supplied Ground vibration peak particle velocity result is 5 mm/s. Its stated comparison range is 0 to 4 mm/s. Outside example comparison bounds.
A sample difference does not establish causation, liability or a legal breach.
Compare the measured value only with matching parameter, unit, use and averaging period. Retain limit source/version and censored-result status.
Example bounds establish no compliance or diagnosis. Ambient, drinking-water, effluent, crop, food, air and noise standards are not interchangeable. A censored result is not an exact zero. Physical concentrations and magnitude measurements are non-negative. Signed raw instrument signals need laboratory interpretation; do not silently replace them with zero.
Other required records: Quarry; blast records; vibration; noise; dust; receptors; applicable limits.
Compare conflicting licence and extraction records before investigation.
What the selected record shows. The original record says “Observed footprint: primary register entry”; the comparison says “Observed footprint: conflicting source return”. Their matching meaning has not been established. Obtain the source definitions and supporting records before reconciling them.
Next step. Resolve source disagreement. Prepare source comparison in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
The prototype does not determine whether an offence occurred.
Compare original definitions, identifiers, units and versions against documented equivalence evidence. Preserve conflicts and unresolved mappings; do not subtract category labels or silently merge records.
Other required records: Observed footprint; date; license registry; evidence; uncertainty; competent authority.
Compare exploration approaches using geological evidence, access and feasibility constraints.
What the selected record shows. There is not enough information to choose this option. Obtain the records and evidence about conditions listed below. The supplied budget less cost is 300,000 LKR.
Next step. Obtain the missing records before choosing. Prepare evidence request in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Cost and stated benefits do not establish a mineral resource.
Compare each alternative's stated benefit, adverse effects, domain evidence and mandatory constraints. Where cost and budget are supplied, budget balance = budget − option cost. A budget balance alone does not determine domain feasibility or select an option.
Other required records: Geological evidence; sample results; access; infrastructure; costs; restrictions.
Find missing groundwater and control evidence for a mining-proposal referral.
What the selected record shows. The required evidence is incomplete for this groundwater interactions case. The items below identify what must be obtained or reconciled.
A checklist does not establish groundwater safety or allowable extraction.
Show the hazard, exposure and verified controls separately. No generic score, probability, diagnosis, site clearance or official warning is derived from a count.
Other required records: Mine depth; aquifer; pumping; well network; baseline quality; hydrogeological assessment.
Identify mineral-analysis cases past their recorded response date.
What the selected record shows. Open days past due: 29 days. Follow up overdue case.
Next step. Follow up overdue case; confirm the missing condition evidence. Prepare evidence request in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Age alone does not establish analytical priority or result validity.
Open age = assessment date − received date. Days past due = max(0, assessment date − recorded due date) for open cases. Show documented critical conditions separately.
Example due dates are not legal service standards. Do not alter statutory deadlines by silently subtracting pauses, or infer severity from age alone.
Other required records: Sample; required analysis; receipt date; due date; lab capacity; quality controls.
Compare mineral-analysis measurements under matching units and definitions.
What the selected record shows. Difference: -10 mg/kg.
Next step. Reconcile the original records using their source references. Prepare source comparison in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
A discrepancy needs laboratory and source checks before resource interpretation.
Keep both originals, units, scope, method, calibration and correction history. A difference does not identify which source is correct; no automatic averaging or overwrite.
Other required records: Sample ID; custody; duplicates; assay method; reference materials; units.
Check transport records against their stated source and authority references.
What the selected record shows. The required evidence is incomplete for this transport permissions case. The items below identify what must be obtained or reconciled.
The example does not authenticate a permit or authorise transport.
Other required records: Shipment; source license; mineral; quantity; route; validity; required documents.
Check inspection dates and resources against the documented priorities and prerequisites.
What the selected record shows. Planned duration: 3 days. Resolve overlapping resource bookings.
Next step. Resolve overlapping resource bookings. Prepare schedule review in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
The prototype does not invent a risk ranking or assign inspectors.
Check start/end order, operating window, effort, predecessor completion and overlapping bookings for the same resource. A conflict is flagged; no optimal schedule is invented.
Other required records: License conditions; prior violations; hazards; inspection due dates; staff capacity.
Compare reported extraction-related amounts payable with matching recorded receipts.
What the selected record shows. Difference: -10 LKR.
A difference requires reconciliation before determining a debt or irregularity.
Other required records: Assessed dues; rates edition; declared quantities; receipts; adjustments; period.
Find missing evidence for specialist review of a reported geological hazard.
What the selected record shows. The required evidence is incomplete for this geohazard evidence case. The items below identify what must be obtained or reconciled.
No hazard probability, warning or site-safety determination is produced.
Other required records: Observed instability; geology; location; exposed assets; field evidence; referral.
Check whether supplied resource-estimation inputs reproduce the stated result.
What the selected record shows. Difference: -10 tonnes. Investigate reproduction difference.
Next step. Investigate reproduction difference. Prepare reproduction-check note in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Reproduction is not a resource certification or a validation of geological assumptions.
Reproduced minus expected result, within an explicitly supplied absolute tolerance, using the same exact input/method versions and a separate checker. Retain originals, code, parameters and environment evidence.
Other required records: Sampling design; assays; model; density; uncertainty; independent checks.
Find missing source and edition details in geological records.
What the selected record shows. The required evidence is incomplete for this geological catalogue case. The items below identify what must be obtained or reconciled.
Better metadata do not establish analytical quality or publication rights.
Other required records: Map ID; scale; survey date; lithology definitions; owner; access rights.
Source. Sri Lanka publication.
Data needed. Licence, approved rehabilitation commitments, site evidence and the rehabilitation report.
Method. Check submitted rehabilitation evidence against the bureau’s report instructions and applicable licence commitments.
Worked example. A rehabilitation report lacks evidence for a condition in the mine licence. Ask the licence holder for that evidence before referring the case for closure review.
Next step. Return incomplete evidence or refer the site to the competent officer for closure inspection.
Geological Survey and Mines Bureau, Licensing Application Forms. Instructions for preparation of a mine rehabilitation report.
Confirm the approved plan, licence conditions, inspection scope and authority to accept closure.
Check which existing source fields can supply the decision inputs.
Existing form reference: 41336eee89f85706
Existing form reference: b7d6f23ee128263f
Existing form reference: ce03929a51b9da64
Existing form reference: b4d5a0c029f904d6
Existing form reference: b8bbd59e75e437b9
Existing form reference: 3c6e0cfb0e978318
Existing form reference: 28a2a5925250def7
Existing form reference: ea62ecace985e67d
Your institution has its own document and image library. Use the same library for reports, photos and other evidence.
Open this screen for Geological Survey and Mines BureauSee the presentation example
Files added in the prototype stay in this browser. Public sharing is an access preview. Existing public reference links already work online.
Data structure keeps the existing source tree, records, charts and map. Manage structure adds a place to propose changes to definitions.
An entity type means a kind of thing or event, such as a reservoir or an inspection. Drafts stay in this browser. A demo approval does not change real definitions, data, chart links or sharing rights.
User management shows example profiles for each institution. People and Roles and access let you review the proposed account screens.
These are interface previews only. They create no account, send no email and change no access. Use example details in the preview. Institution verification does not grant a real permission.
We currently use public data and published reports where available. Please confirm whether your institution can provide data directly, so we can avoid retyping or reading figures from PDFs.
Do not enter passwords, access keys or private account details.
Use the Download answers button at the top of this page. Share the downloaded file or printed copy through your agreed review channel. Nothing is sent automatically.