Irrigation Department

Tell us what to change or add.

1. Check a decision

Open a decision below. Check the area, period, inputs, result and proposed next step.

2. Try the inputs

Use Example input to change a sample. Use Source input to check the fields and source details. The land-use change decision has its own comparison views.

Record your corrections below, then download your answers or print them.

3. Check each decision

1. Prepare additional irrigation allocation proposalsDEC-DP05-001 · Command water demand · Suggested priority: High
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Prepare additional irrigation allocation proposals.

Verified published component · Crop evapotranspiration ETc component

Gross daily irrigation requirement — fictional 2025 examples

Method. ETc = ETo × Kc. Net = max(0, ETc + percolation + desired storage increase − rainfall after runoff − capillary contribution). Gross = net × hectares ×10 / application efficiency.

Next step. Review evidence. Propose crop demand, scheduling or allocation alternatives for authorized review.

Inputs, example and sources

Food and Agriculture Organization of the United Nations · FAO Irrigation and Drainage Paper 56 Crop Evapotranspiration
Institution publication · Chapter 5, Crop coefficient approach, equation 56

This verifies the ETc component only. Local water-balance allowances, coefficients and operating decisions still need confirmation.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Irrigated crop area [ha]; Reference evapotranspiration [mm/day]; Crop coefficient [ratio]; Rainfall reaching the field after runoff [mm/day]; Deep percolation and paddy allowance [mm/day]; Capillary contribution [mm/day]; Desired change in stored soil water [mm/day]; Field application efficiency [fraction]

Other required evidence. Command hectares; crop stage; evapotranspiration; rainfall; percolation; efficiency.

Fictional worked example · 2025

Laggala Pallegama — command water demand · Laggala Pallegama

Input or resultValueUnit
Irrigated crop area85ha
Reference evapotranspiration4.5mm/day
Crop coefficient1.1ratio
Rainfall reaching the field after runoff1.6mm/day
Deep percolation and paddy allowance2mm/day
Capillary contribution0mm/day
Desired change in stored soil water0mm/day
Field application efficiency0.68fraction
Gross daily irrigation requirement6,687.5m³/day
Net field requirement5.35mm/day

The full local balance, rooting depth, stress, crop stage and operating constraints still matter. The paddy allowance is explicit and must be zero where inapplicable. This is not an authorized reservoir release.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Delivered water, crop stress, unmet demand and downstream conditions.

  • FAO 56: crop evapotranspiration — Institution publication. FAO 56 Chapter 5 equation 56; ETc = Kc × ETo. Institutional context; does not establish the calculation or local approval.
  • FAO56 root-zone water balance — Institution publication. Chapter8 equation85 and ETc = Kc ETo. Daily water balance components; local coefficients and operating assumptions still need review.
  • FAO Irrigation Water Management Training Manual 3 — Institution publication. Chapter 4.4 Irrigation water need of rice; steps 1 to 8. Institutional context; does not establish the calculation or local approval.
  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
2. Restore stale river and reservoir observationsDEC-DP05-002 · Gauge operations · Suggested priority: High
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Restore stale river and reservoir observations.

Validation required

Completeness — fictional 2025 examples

Method. Completeness = 100 × valid / expected. Age = assessment date − latest valid observation; compare with the explicitly supplied interval.

Next step. Check overdue observation. Repair missed observations, contact the owner, or suspend stale evidence from current decisions.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Expected observations in the window [observations]; Distinct valid observations [observations]; Latest valid observation; Assessment date; Required observation interval [days]

Other required evidence. Gauge ID; observation schedule; last valid reading; outage duration; calibration.

Fictional worked example · 2025

Laggala Pallegama — gauge operations · Laggala Pallegama

Input or resultValueUnit
Expected observations in the window30observations
Distinct valid observations24observations
Latest valid observation2025-06-28
Assessment date2025-06-30
Required observation interval1days
Completeness80%
Age of latest observation2days
Missing observations6observations

A recent observation does not fill earlier gaps. Unknown schedule or observation time cannot establish freshness.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Valid observations received on time and recurring gaps.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
3. Choose what to handle first: canals with delivery shortfallsDEC-DP05-003 · Canal performance · Suggested priority: High
Try this decision

Prioritize canals with delivery shortfalls.

Validation required

Difference — fictional 2025 examples

Method. Observed value minus Planned value. Relative change = 100 × difference / Planned value when the earlier value is positive.

Next step. Review evidence. Investigate a material deviation, assign correction, or propose a target revision.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Planned value [m³]; Observed value [m³]

Other required evidence. Canal outlet; planned cubic metres; delivered cubic metres; period; command area.

Fictional worked example · 2025

Laggala Pallegama — canal performance · Laggala Pallegama

Input or resultValueUnit
Planned value100m³
Observed value90m³
Difference-10m³
Relative change-10%

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Subsequent variance with original and revised targets retained.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
4. Review storage consequences of proposed releasesDEC-DP05-004 · Reservoir operation · Suggested priority: High
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Review storage consequences of proposed releases.

Validation required

Calculated closing storage — fictional 2025 examples

Method. Calculated closing = opening + inflows − releases/transfers − other outflows. Residual = independently observed closing − calculated closing.

Next step. Reconcile closing balance. Investigate unexplained balances and propose revised measurement or operating action.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Opening storage [m³]; All measured inflows and transfers in [m³]; Releases and transfers out [m³]; Evaporation and other outflows [m³]; Independently observed closing storage [m³]

Other required evidence. Opening storage; inflow; irrigation release; spill; evaporation; closing survey.

Fictional worked example · 2025

Laggala Pallegama — reservoir operation · Laggala Pallegama

Input or resultValueUnit
Opening storage160,000m³
All measured inflows and transfers in48,000m³
Releases and transfers out35,000m³
Evaporation and other outflows9,000m³
Independently observed closing storage163,500m³
Calculated closing storage164,000m³
Observed minus calculated closing-500m³

Use the same physical boundary, period and units. A residual is a reconciliation issue, not automatically a measured loss.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Reconciled balance residuals and verified operating results.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
5. Escalate dam inspection defects requiring engineering actionDEC-DP05-005 · Dam safety · Suggested priority: High
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Escalate dam inspection defects requiring engineering action.

Validation required

Evidence gaps — fictional 2025 examples

Method. Check each required item and retain its reference. A documented item is not a scientific, legal or institutional approval.

Next step. Complete the evidence. Request correction, refer mandatory failures, or accept the inspected item with conditions.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Dam ID; Dam ID evidence reference; seepage; seepage evidence reference; deformation; deformation evidence reference; inspection findings; inspection findings evidence reference; approved limits; approved limits evidence reference; responsible engineer; responsible engineer evidence reference

Other required evidence. Dam ID; seepage; deformation; inspection findings; approved limits; responsible engineer.

Fictional worked example · 2025

Laggala Pallegama — dam safety · Laggala Pallegama

Input or resultValueUnit
Dam IDMissing
Dam ID evidence reference
seepageDocumented
seepage evidence referenceSample Laggala Pallegama field register / 2025
deformationDocumented
deformation evidence referenceSample Laggala Pallegama field register / 2025
inspection findingsDocumented
inspection findings evidence referenceSample Laggala Pallegama field register / 2025
approved limitsDocumented
approved limits evidence referenceSample Laggala Pallegama field register / 2025
responsible engineerDocumented
responsible engineer evidence referenceSample Laggala Pallegama field register / 2025
Evidence gaps1items

Evidence completeness alone cannot establish suitability, eligibility, safety, permission or method validity.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Evidence-backed corrective closure and recurring nonconformances.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
6. Prepare response options from authorized hydrological evidenceDEC-DP05-006 · Flood readiness · Suggested priority: High
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Prepare response options from authorized hydrological evidence.

Validation required

Evidence gaps — fictional 2025 examples

Method. Check each required item and retain its reference. A documented item is not a scientific, legal or institutional approval.

Next step. Complete the evidence. Select a feasible control, escalate beyond authority, or seek technical inspection.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. River levels; River levels evidence reference; official forecast; official forecast evidence reference; flood exposure; flood exposure evidence reference; warning protocol; warning protocol evidence reference; evacuation constraints; evacuation constraints evidence reference; Documented unresolved critical condition; Evidence observation date; Existing control and its evidence; Competent recipient

Other required evidence. River levels; official forecast; flood exposure; warning protocol; evacuation constraints.

Fictional worked example · 2025

Laggala Pallegama — flood readiness · Laggala Pallegama

Input or resultValueUnit
River levelsMissing
River levels evidence reference
official forecastDocumented
official forecast evidence referenceSample Laggala Pallegama field register / 2025
flood exposureDocumented
flood exposure evidence referenceSample Laggala Pallegama field register / 2025
warning protocolDocumented
warning protocol evidence referenceSample Laggala Pallegama field register / 2025
evacuation constraintsDocumented
evacuation constraints evidence referenceSample Laggala Pallegama field register / 2025
Documented unresolved critical conditionUnknown
Evidence observation date2025-06-30
Existing control and its evidenceSample documented control
Competent recipientResponsible specialist / duty authority
Evidence gaps1items

Show the hazard, exposure and verified controls separately. No generic score, probability, diagnosis, site clearance or official warning is derived from a count.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Verified control effectiveness and residual risk with evidence.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
7. Compare feasible drought water-allocation alternativesDEC-DP05-007 · Drought allocation · Suggested priority: High
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Compare feasible drought water-allocation alternatives.

Validation required

Budget remaining after option — fictional 2025 examples

Method. Budget minus option cost. Compare benefits, adverse effects and mandatory constraints separately; no weighted score or automatic best option.

Next step. Compare feasible trade-offs. Choose a feasible alternative with rationale and conditions, commission evidence, or defer.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Option cost [LKR]; Available budget [LKR]; Mandatory constraints; Expected benefit and its evidence; Resource needs and adverse effects

Other required evidence. Dependable storage; sector demand; environmental requirements; allocation rules; uncertainty.

Fictional worked example · 2025

Canal repair · Laggala Pallegama

Input or resultValueUnit
Option cost1,500,000LKR
Available budget1,800,000LKR
Mandatory constraintsMet
Expected benefit and its evidenceCompare feasible drought water-allocation alternatives; Dependable storage and sector demand evidence needed
Resource needs and adverse effectsSample water, labour, access and safeguard trade-offs
Budget remaining after option300,000LKR

Affordability does not prove feasibility or scientific suitability. A missing mandatory condition keeps an option unresolved.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Verified benefits, costs and adverse effects versus the agreed baseline.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
8. Choose what to handle first: bathymetric surveys and desilting appraisalDEC-DP05-008 · Reservoir sedimentation · Suggested priority: High
Try this decision

Prioritize bathymetric surveys and desilting appraisal.

Validation required

Difference — fictional 2025 examples

Method. Later/comparison value minus Earlier/source value. Relative change = 100 × difference / Earlier/source value when the earlier value is positive.

Next step. Review evidence. Accept a genuine change for planning review, investigate a discontinuity, or defer comparison.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Earlier/source value [m³]; Later/comparison value [m³]

Other required evidence. Storage survey editions; sediment volume; usable capacity; survey accuracy; dates.

Fictional worked example · 2025

Laggala Pallegama — reservoir sedimentation · Laggala Pallegama

Input or resultValueUnit
Earlier/source value100m³
Later/comparison value90m³
Difference-10m³
Relative change-10%

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Comparable change after the chosen action and unresolved discrepancies.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
9. Choose what to handle first: repair packages within engineering and budget limitsDEC-DP05-009 · Canal rehabilitation · Suggested priority: High
Try this decision

Prioritize repair packages within engineering and budget limits.

Validation required

Open days past due — fictional 2025 examples

Method. Open age = assessment date − received date. Days past due = max(0, assessment date − recorded due date) for open cases. Show documented critical conditions separately.

Next step. Follow up overdue case. Authorize feasible repair through the proper work process, inspect further, or restrict unsafe use.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Received or defect observed; Recorded due date; Assessment date; Case/work closed; Documented critical unresolved condition; Responsible office or maintainer; Actual closure date when closed

Other required evidence. Asset condition; defects; service criticality; repair options; costs; inspection date.

Fictional worked example · 2025

Laggala Pallegama — canal rehabilitation · Laggala Pallegama

Input or resultValueUnit
Received or defect observed2025-04-01
Recorded due date2025-06-01
Assessment date2025-06-30
Case/work closedNo
Documented critical unresolved conditionUnknown
Responsible office or maintainerProposed responsible office
Actual closure date when closed
Open days past due29days
Calendar age90days

Example due dates are not legal service standards. Do not alter statutory deadlines by silently subtracting pauses, or infer severity from age alone.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Verified defect closure, service availability and repeat failures.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
10. Select drainage improvements for persistently waterlogged areasDEC-DP05-010 · Drainage · Suggested priority: High
Try this decision

Select drainage improvements for persistently waterlogged areas.

Validation required

Budget remaining after option — fictional 2025 examples

Method. Budget minus option cost. Compare benefits, adverse effects and mandatory constraints separately; no weighted score or automatic best option.

Next step. Compare feasible trade-offs. Choose a feasible alternative with rationale and conditions, commission evidence, or defer.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Option cost [LKR]; Available budget [LKR]; Mandatory constraints; Expected benefit and its evidence; Resource needs and adverse effects

Other required evidence. Flood duration; drainage network; outlet capacity; affected hectares; engineering options.

Fictional worked example · 2025

Canal repair · Laggala Pallegama

Input or resultValueUnit
Option cost1,500,000LKR
Available budget1,800,000LKR
Mandatory constraintsMet
Expected benefit and its evidenceSelect drainage improvements for persistently waterlogged areas; Flood duration and drainage network evidence needed
Resource needs and adverse effectsSample water, labour, access and safeguard trade-offs
Budget remaining after option300,000LKR

Affordability does not prove feasibility or scientific suitability. A missing mandatory condition keeps an option unresolved.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Verified benefits, costs and adverse effects versus the agreed baseline.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
11. Check saline intrusion affecting irrigated landDEC-DP05-011 · Salinity exclusion · Suggested priority: High
Try this decision

Investigate saline intrusion affecting irrigated land.

Validation required

Measured value — fictional 2025 examples

Method. Compare the measured value only with matching parameter, unit, use and averaging period. Retain limit source/version and censored-result status.

Next step. Outside example comparison bounds. Refer a confirmed nonconformance for authorized response, resample, or investigate the method.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Parameter and applicable use; Measured result [µS/cm]; Example lower comparison bound [µS/cm]; Example upper comparison bound [µS/cm]; Original and limit unit; Sampling and analytical method/version; Limit source, version and use; Parameter, unit, use and averaging period match; Result is below a reporting/detection limit; Averaging interval, sampling depth or process basis

Other required evidence. Water conductivity; tide stage; gate status; crop use; reviewed salinity limits.

Fictional worked example · 2025

Laggala Pallegama — salinity exclusion · Laggala Pallegama

Input or resultValueUnit
Parameter and applicable useIrrigation-water electrical conductivity
Measured result2,500µS/cm
Example lower comparison bound0µS/cm
Example upper comparison bound2,000µS/cm
Original and limit unitµS/cm
Sampling and analytical method/versionSample laboratory method
Limit source, version and useFictional comparison bounds; not a regulatory limit
Parameter, unit, use and averaging period matchYes
Result is below a reporting/detection limitNo
Averaging interval, sampling depth or process basisSample stated sampling/averaging basis
Measured value2,500µS/cm

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.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Follow-up compliance, exposure/service condition and corrective closure.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
12. Schedule approved gate operations without conflictsDEC-DP05-012 · Gate scheduling · Suggested priority: High
Try this decision

Schedule approved gate operations without conflicts.

Validation required

Planned duration — fictional 2025 examples

Method. 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.

Next step. Resolve overlapping resource bookings. Assign a feasible timetable, redistribute resources, or escalate the blocked dependency.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Required resource; Task start; Task end; Earliest permitted start; Latest permitted finish; Required resource effort [hours]; Available resource effort [hours]; Predecessor task reference; Mandatory permits and prerequisites

Other required evidence. Release approval; gate capacity; operator availability; downstream constraints; operating windows.

Fictional worked example · 2025

Laggala Pallegama — gate scheduling · Laggala Pallegama

Input or resultValueUnit
Required resourceWatershed field team
Task start2025-06-01
Task end2025-06-04
Earliest permitted start2025-05-28
Latest permitted finish2025-06-08
Required resource effort16hours
Available resource effort24hours
Predecessor task referenceNone
Mandatory permits and prerequisitesMet
Planned duration3days
Resource hours remaining8hours

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. On-time completion with verified outputs and resource use.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
13. Target schemes with low crop output per water deliveredDEC-DP05-013 · Water productivity · Suggested priority: Medium
Try this decision

Target schemes with low crop output per water delivered.

Validation required

Crop water productivity — fictional 2025 examples

Method. Saleable crop output / Matching irrigation water input, for the same product, process and period.

Next step. Review evidence. Investigate low productivity, compare practices, or improve the input/output measurements.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Saleable crop output [kg]; Matching irrigation water input [m³]

Other required evidence. Crop output kg; delivered cubic metres; command hectares; crop; season.

Fictional worked example · 2025

Laggala Pallegama — water productivity · Laggala Pallegama

Input or resultValueUnit
Saleable crop output19,780kg
Matching irrigation water input7,200m³
Crop water productivity2.747kg/m³

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Output per relevant input alongside quality and resource impacts.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
14. Flag proposed releases inconsistent with reviewed flow conditionsDEC-DP05-014 · Environmental flows · Suggested priority: High
Try this decision

Flag proposed releases inconsistent with reviewed flow conditions.

Validation required

Difference — fictional 2025 examples

Method. Observed value minus Planned value. Relative change = 100 × difference / Planned value when the earlier value is positive.

Next step. Review evidence. Investigate a material deviation, assign correction, or propose a target revision.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Planned value [m³/s]; Observed value [m³/s]

Other required evidence. Release proposal; flow obligation; dates; monitoring point; measured flow.

Fictional worked example · 2025

Laggala Pallegama — environmental flows · Laggala Pallegama

Input or resultValueUnit
Planned value100m³/s
Observed value90m³/s
Difference-10m³/s
Relative change-10%

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Subsequent variance with original and revised targets retained.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
15. Require reproducible calibration before model useDEC-DP05-015 · Hydrological models · Suggested priority: Medium
Try this decision

Require reproducible calibration before model use.

Validation required

Difference — fictional 2025 examples

Method. 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.

Next step. Investigate reproduction difference. Accept reproducible evidence for review, investigate differences, or withhold an unsupported result.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Earlier/source value [m³/s]; Independently reproduced value [m³/s]; Original measurement unit; Comparison measurement unit; Compared measure and definition; Documented absolute comparison tolerance [m³/s]; Expected input/method version; Reproduced input/method version; Original result creator; Independent reproducer

Other required evidence. Model version; rainfall; flow; calibration period; validation period; performance criteria.

Fictional worked example · 2025

Laggala Pallegama — hydrological models · Laggala Pallegama

Input or resultValueUnit
Earlier/source value100m³/s
Independently reproduced value90m³/s
Original measurement unitSample matching unit
Comparison measurement unitSample matching unit
Compared measure and definitionSample comparable m³/s measure; same input scope
Documented absolute comparison tolerance0.01m³/s
Expected input/method versionSample input1 /method1
Reproduced input/method versionSample input1 /method1
Original result creatorPreparation officer
Independent reproducerIndependent checking officer
Difference-10m³/s
Relative change-10%

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Independent reproduction within the approved tolerance.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
16. Compare energy performance of lift-irrigation stationsDEC-DP05-016 · Pumping systems · Suggested priority: Medium
Try this decision

Compare energy performance of lift-irrigation stations.

Validation required

Specific energy use — fictional 2025 examples

Method. Electric energy consumed / Water pumped, for the same product, process and period.

Next step. Review evidence. Investigate low productivity, compare practices, or improve the input/output measurements.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Electric energy consumed [kWh]; Water pumped [m³]

Other required evidence. Delivered cubic metres; energy kWh; pumping head; operating hours; station ID.

Fictional worked example · 2025

Laggala Pallegama — pumping systems · Laggala Pallegama

Input or resultValueUnit
Electric energy consumed3,128kWh
Water pumped18,000m³
Specific energy use0.174kWh/m³

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Output per relevant input alongside quality and resource impacts.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
17. Appraise reservoir rehabilitation cash-flow alternativesDEC-DP05-017 · Rehabilitation investment · Suggested priority: High
Try this decision

Appraise reservoir rehabilitation cash-flow alternatives.

Verified published formula · Discounted cash-flow NPV

Five-year net present value — fictional 2025 examples

Method. NPV = −initial investment + sum of year1…5 net cash flows discounted at the stated annual rate, including residual value once in year5.

Next step. Review evidence. Compare feasible investments, adjust the scope, or defer pending finance/evidence.

Inputs, example and sources

Food and Agriculture Organization of the United Nations · Guidelines for defining financial economic environmental and social information
Institution publication · Sections 2.2.2 and 2.2.3, discounting and Net Present Value

The five-year horizon, discount rate and cash assumptions are local settings. Verification does not approve an investment or loan.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Initial investment [LKR]; Net cash flow year1 [LKR]; Net cash flow year2 [LKR]; Net cash flow year3 [LKR]; Net cash flow year4 [LKR]; Net cash flow year5 [LKR]; Residual value at end of year5 [LKR]; Example discount rate [%]

Other required evidence. Capital cost; maintenance; avoided losses; benefits; discount rate; project life.

Fictional worked example · 2025

Laggala Pallegama — rehabilitation investment · Laggala Pallegama

Input or resultValueUnit
Initial investment2,400,000LKR
Net cash flow year1400,000LKR
Net cash flow year2550,000LKR
Net cash flow year3680,000LKR
Net cash flow year4720,000LKR
Net cash flow year5760,000LKR
Residual value at end of year5120,000LKR
Example discount rate8%
Five-year net present value109,847.353LKR

Match currency, price year, real/nominal basis and cash-flow timing. The example rate and five-year horizon are assumptions, not institutional financing terms; no credit approval follows.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Realized cash flows, benefits and costs versus the approved appraisal.

Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
18. Check delayed irrigation construction milestonesDEC-DP05-018 · Construction delivery · Suggested priority: Medium
Try this decision

Investigate delayed irrigation construction milestones.

Validation required

Calendar date difference — fictional 2025 examples

Method. Observed date minus planned date in calendar days. Missing actual dates are pending, not zero delay. Approved working-day rules require a defined calendar.

Next step. Review evidence. Investigate a material deviation, assign correction, or propose a target revision.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Planned milestone/sowing date; Observed completion/sowing date

Other required evidence. Approved milestone dates; actual dates; dependencies; contract progress; completion evidence.

Fictional worked example · 2025

Laggala Pallegama — construction delivery · Laggala Pallegama

Input or resultValueUnit
Planned milestone/sowing date2025-06-01
Observed completion/sowing date2025-06-09
Calendar date difference8days

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Subsequent variance with original and revised targets retained.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
19. Prevent shortages of critical irrigation equipment sparesDEC-DP05-019 · Spare parts · Suggested priority: Medium
Try this decision

Prevent shortages of critical irrigation equipment spares.

Validation required

Uncommitted usable stock — fictional 2025 examples

Method. Usable = physical−quarantined−expired (non-overlapping groups). Available = usable−commitments. Additional gap = max(0, new demand−available).

Next step. Review replenishment gap. Reorder approved quantities, redistribute stock, or quarantine affected lots.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Physical stock [spares]; Quarantined stock [spares]; Expired stock [spares]; Committed usable stock [spares]; Additional demand [spares]; Supplier lead time [days]; Remaining shelf life of usable stock [days]

Other required evidence. Part ID; usable stock; asset compatibility; lead time; approved demand; expiry.

Fictional worked example · 2025

Laggala Pallegama — spare parts · Laggala Pallegama

Input or resultValueUnit
Physical stock1,200spares
Quarantined stock100spares
Expired stock50spares
Committed usable stock740spares
Additional demand500spares
Supplier lead time14days
Remaining shelf life of usable stock30days
Uncommitted usable stock310spares
Additional demand gap190spares

Stock must be compatible by item, lot, condition, expiry and delivery window. Do not allocate quarantined/expired stock or silently erase overcommitment.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Stockouts, expiry, losses and verified lot traceability.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision
20. Correct missing metadata in published reservoir informationDEC-DP05-020 · Public information · Suggested priority: Lower
Try this decision

Correct missing metadata in published reservoir information.

Validation required

Evidence gaps — fictional 2025 examples

Method. Check each required item and retain its reference. A documented item is not a scientific, legal or institutional approval.

Next step. Complete the evidence. Accept a fit source for a defined use, restrict it, or request metadata/schema correction.

Inputs, example and sources

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Reservoir ID; Reservoir ID evidence reference; reading time; reading time evidence reference; unit; unit evidence reference; datum; datum evidence reference; source; source evidence reference; review state; review state evidence reference; update schedule; update schedule evidence reference

Other required evidence. Reservoir ID; reading time; unit; datum; source; review state; update schedule.

Fictional worked example · 2025

Laggala Pallegama — public information · Laggala Pallegama

Input or resultValueUnit
Reservoir IDMissing
Reservoir ID evidence reference
reading timeDocumented
reading time evidence referenceSample Laggala Pallegama field register / 2025
unitDocumented
unit evidence referenceSample Laggala Pallegama field register / 2025
datumDocumented
datum evidence referenceSample Laggala Pallegama field register / 2025
sourceDocumented
source evidence referenceSample Laggala Pallegama field register / 2025
review stateDocumented
review state evidence referenceSample Laggala Pallegama field register / 2025
update scheduleDocumented
update schedule evidence referenceSample Laggala Pallegama field register / 2025
Evidence gaps1items

Evidence completeness alone cannot establish suitability, eligibility, safety, permission or method validity.

Proposed checking role. Irrigation operations engineer and hydrologist; dam safety specialist for structural decisions.

After the action. Resolved interoperability issues and current verified metadata.

  • SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.
Institution and data context
  • Irrigation Department public information — Government publication. Public homepage navigation: reservoir status, hydrology, geo-informatics and branch information. Institutional context; does not establish the calculation or local approval.
  • Irrigation Department overview and functions — Government publication. Overview: Objectives and Functions. Institutional context; does not establish the calculation or local approval.
  • FAO crop evapotranspiration 56 — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Your checks for this decision

4. Existing data forms for your institution

Check which existing source fields can supply the decision inputs.

Reservoir · Water and irrigation

Existing form reference: 4c16fb03e60a6df6

FieldUnitRequired
Source record IDConfirm if neededNo
Tank CodeConfirm if neededNo
Reservoir nameConfirm if neededNo
Range CodeConfirm if neededNo
RangeConfirm if neededNo
Division CodeConfirm if neededNo
DivisionConfirm if neededNo
TypeConfirm if neededNo
River basinConfirm if neededNo
SchemeConfirm if neededNo
HFL m MSLm MSLNo
FSL m MSLm MSLNo
BTL m MSLm MSLNo
Catchment Area (ha)haNo
Capacity at FSL (MCM)million m³No
Dead Storage (MCM)million m³No
Live Storage (MCM)million m³No
Area at FSL (ha)haNo
Capacity at FSL(Acft)acre-ftNo
Dead Storage (Acft)acre-ftNo
Live Storage (Acft)acre-ftNo
RemarksConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Irrigable Area · Water and irrigation

Existing form reference: c16bd1e4f59a2a05

FieldUnitRequired
Source record IDConfirm if neededNo
SchemeConfirm if neededNo
TypeConfirm if neededNo
DivisionConfirm if neededNo
RangeConfirm if neededNo
Res An UniConfirm if neededNo
CodeConfirm if neededNo
Response OfficerConfirm if neededNo
Irrigable Area - Scheme Register (ha)haNo
RemarksConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Canal System · Water and irrigation

Existing form reference: 21d2e28388872fa1

FieldUnitRequired
Source record IDConfirm if neededNo
SchemeConfirm if neededNo
SubsystemConfirm if neededNo
DivisionConfirm if neededNo
RangeConfirm if neededNo
Canal TypeConfirm if neededNo
CodeConfirm if neededNo
Res An UniConfirm if neededNo
Scheme TypeConfirm if neededNo
Source geometry lengthConfirm if neededNo
Bund · Water and irrigation

Existing form reference: a834d8c98d70c0a1

FieldUnitRequired
OBJECTID 1Confirm if neededNo
Reservoir nameConfirm if neededNo
DivisionConfirm if neededNo
TypeConfirm if neededNo
RangeConfirm if neededNo
Tank CodeConfirm if neededNo
Division CodeConfirm if neededNo
Bund Top Width (m)Confirm if neededNo
Maximum Height of Bund (m)Confirm if neededNo
Length of Bund (m)Confirm if neededNo
Up Stream SlopeConfirm if neededNo
Down Stream SlopeConfirm if neededNo
Range CodeConfirm if neededNo
Source geometry lengthConfirm if neededNo
Tank Coordinate · Water and irrigation

Existing form reference: 1c6cf855f1769bc7

FieldUnitRequired
Source record IDConfirm if neededNo
X Coordinate (Em)Confirm if neededNo
Y Coordinate (Nm)Confirm if neededNo
Reservoir nameConfirm if neededNo
DivisionConfirm if neededNo
TypeConfirm if neededNo
RangeConfirm if neededNo
Tank CodeConfirm if neededNo
Division CodeConfirm if neededNo
Range CodeConfirm if neededNo
SLD99 XmConfirm if neededNo
SLD99 YmConfirm if neededNo
LatitudeConfirm if neededNo
LongitudeConfirm if neededNo
Sluice · Water and irrigation

Existing form reference: a4b6d5793605c038

FieldUnitRequired
LocationConfirm if neededNo
Reservoir nameConfirm if neededNo
Reservoir TypeConfirm if neededNo
RangeConfirm if neededNo
Tank CodeConfirm if neededNo
Division CodeConfirm if neededNo
Range CodeConfirm if neededNo
DivisionConfirm if neededNo
SLD99 XmConfirm if neededNo
SLD99 YmConfirm if neededNo
LatitiudeConfirm if neededNo
LongitudeConfirm if neededNo
Chinage LocationConfirm if neededNo
Sluice Sill LevelConfirm if neededNo
Number of BaralConfirm if neededNo
Size of BaralConfirm if neededNo
RemarksConfirm if neededNo
Spill · Water and irrigation

Existing form reference: 52df99673ebef8ff

FieldUnitRequired
OBJECTID 12Confirm if neededNo
LocationConfirm if neededNo
DivisionConfirm if neededNo
Tank CodeConfirm if neededNo
Reservoir nameConfirm if neededNo
RangeConfirm if neededNo
TypeConfirm if neededNo
Range CodeConfirm if neededNo
Division CodeConfirm if neededNo
SLD99 XmConfirm if neededNo
SLD99 YmConfirm if neededNo
LatitudeConfirm if neededNo
LongitudeConfirm if neededNo
Spill Location in Chainage(km+m)Confirm if neededNo
Spill TypeConfirm if neededNo
Spill Length mConfirm if neededNo
No of GatesConfirm if neededNo
Type of GateConfirm if neededNo
Size of Gate m (W x H)Confirm if neededNo
Spill Crest Level mMSLConfirm if neededNo
RemarksConfirm if neededNo
CommentsConfirm if neededNo
river basins · Water and irrigation

Existing form reference: d2774621c4b33eb3

FieldUnitRequired
OIDConfirm if neededNo
NameConfirm if neededNo
FolderPathConfirm if neededNo
SymbolIDConfirm if neededNo
AltModeConfirm if neededNo
BaseConfirm if neededNo
ClampedConfirm if neededNo
ExtrudedConfirm if neededNo
SnippetConfirm if neededNo
PopupInfoConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Attanagalu Oya Flood 2018; Deduru Oya Flood 2018; Gal Oya Flood 2016 · Flood Inundation DSD · Water and irrigation

Existing form reference: 0971c8cf24efd19e

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Yan Oya Flood 2016 · Flood Inundation GND · Water and irrigation

Existing form reference: b2ee7829c7cfc34b

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Yan Oya Flood 2016 · Flood Inundation DSD · Water and irrigation

Existing form reference: 71692320f67c8770

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Yan Oya Flood 2016 · Flood Inundation Area · Water and irrigation

Existing form reference: 9d90cd9c5c84a7ba

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 81 · Water and irrigation

Existing form reference: 8ba4ffbddb26f7b5

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Nilwala Ganga Flood 2017 · Flood Inundation GND · Water and irrigation

Existing form reference: cd20f9bf8d1487c0

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Nilwala Ganga Flood 2017 · Flood Inundation DSD · Water and irrigation

Existing form reference: d6e8e9a429825b57

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Nilwala Ganga Flood 2017 · Flood Inundation Area · Water and irrigation

Existing form reference: ce6e0b46bd0534b9

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 76 · Water and irrigation

Existing form reference: 4d62429a56f1e52b

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mundani Aru Flood 2014 · Flood Inundation GND · Water and irrigation

Existing form reference: 54b17c1b976d7b7c

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mundani Aru Flood 2014 · Flood Inundation DSD · Water and irrigation

Existing form reference: de66a3c339d43cc1

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mundani Aru Flood 2014 · Flood Inundation Area · Water and irrigation

Existing form reference: ebc817056ae98de6

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 71 · Water and irrigation

Existing form reference: 7df34748f8dc7a71

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mee Oya Flood 2019 · Flood Inundation GND · Water and irrigation

Existing form reference: 336909700eb1e807

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mee Oya Flood 2019 · Flood Inundation DSD · Water and irrigation

Existing form reference: 977273349cc89bef

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mee Oya Flood 2019 · Flood Inundation Area · Water and irrigation

Existing form reference: 3c769ddf1cd69ffa

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 66 · Water and irrigation

Existing form reference: d6db0e029cc9024f

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Malwathu Oya Flood 2011 · Flood Inundation GND · Water and irrigation

Existing form reference: 17b96434d3bdc3d8

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Malwathu Oya Flood 2011 · Flood Inundation DSD · Water and irrigation

Existing form reference: fa2f19c86d129c30

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Malwathu Oya Flood 2011 · Flood Inundation Area · Water and irrigation

Existing form reference: 785418aca242c75f

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 61 · Water and irrigation

Existing form reference: 75f475250456de4c

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mahaweli Ganga Flood 2012 · Flood Inundation GND · Water and irrigation

Existing form reference: 3d03fbdf1f36a8b0

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mahaweli Ganga Flood 2012 · Flood Inundation DSD · Water and irrigation

Existing form reference: 562d7edfae1efc39

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Mahaweli Ganga Flood 2012 · Flood Inundation Area · Water and irrigation

Existing form reference: 5a3f22d6db739d31

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 56 · Water and irrigation

Existing form reference: bbc4c12de68b1c87

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Maha Oya (102) Flood 2016 · Flood Inundation GND · Water and irrigation

Existing form reference: ccd8becff516f214

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Maha Oya (102) Flood 2016 · Flood Inundation DSD · Water and irrigation

Existing form reference: 388a6af26afd09cc

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Maha Oya (102) Flood 2016 · Flood Inundation Area · Water and irrigation

Existing form reference: 9edb436b9dd89dbd

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 51 · Water and irrigation

Existing form reference: e86ead836ff90dea

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kirama Oya Flood 2017 · Flood Inundation GND · Water and irrigation

Existing form reference: f589bf96735f0d23

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kirama Oya Flood 2017 · Flood Inundation DSD · Water and irrigation

Existing form reference: ab1ef79575b445fa

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kirama Oya Flood 2017 · Flood Inundation Area · Water and irrigation

Existing form reference: 5d056dd558b67b64

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 46 · Water and irrigation

Existing form reference: aa5a1be4d7f874a7

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kalu Ganga Flood 2017 · Flood Inundation GND · Water and irrigation

Existing form reference: 23a2949aee5a9a33

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kalu Ganga Flood 2017 · Flood Inundation DSD · Water and irrigation

Existing form reference: 6adfb4fb98a8707e

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kalu Ganga Flood 2017 · Flood Inundation Area · Water and irrigation

Existing form reference: 0082696b49d69c10

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 41 · Water and irrigation

Existing form reference: 03a72f044ebae238

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganag Flood 2016 Major · Flood Inundation DSD · Water and irrigation

Existing form reference: fb02e7976de33449

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganag Flood 2016 Major · Flood Inundation GND · Water and irrigation

Existing form reference: 03ee84fbf008e604

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganag Flood 2016 Major · Flood Inundation Area · Water and irrigation

Existing form reference: 271b1d2b0a139a64

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 36 · Water and irrigation

Existing form reference: 7a5174dfa55bfd27

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganga Flood 2012 Minor · Flood Inundation GND · Water and irrigation

Existing form reference: cc5d99dd2a1894a4

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganag Flood 2016 Minor · Flood Inundation DSD · Water and irrigation

Existing form reference: 620e0dab3654a548

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganga Flood 2012 Minor · Flood Inundation Area · Water and irrigation

Existing form reference: 7f5d382712c12acf

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 31 · Water and irrigation

Existing form reference: 05802ebbb2056902

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganga Flood 1989 Critical · Flood Inundation GND · Water and irrigation

Existing form reference: 317acf986c000ec2

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganga Flood 1989 Critical · Flood Inundation DSD · Water and irrigation

Existing form reference: a8bf89973a928788

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kelani Ganga Flood 1989 Critical · Flood Inundation Area · Water and irrigation

Existing form reference: 741b82a1161a09af

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 26 · Water and irrigation

Existing form reference: 3a83818903f3f37d

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kala Oya Flood 2016 · Flood Inundation GND · Water and irrigation

Existing form reference: 49c3db841a10343f

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kala Oya Flood 2016 · Flood Inundation DSD · Water and irrigation

Existing form reference: 991636cb328c0e85

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Kala Oya Flood 2016 · Flood Inundation Area · Water and irrigation

Existing form reference: b22dc6c49a5a6c32

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 21 · Water and irrigation

Existing form reference: 5aefbeaa988c678e

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Gin Ganga Flood 2017 · Flood Inundation GND · Water and irrigation

Existing form reference: aacfac87f71565b1

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Gin Ganga Flood 2017 · Flood Inundation DSD · Water and irrigation

Existing form reference: 29a6fdf392f24335

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Gin Ganga Flood 2017 · Flood Inundation Area · Water and irrigation

Existing form reference: a0692e188c7ae78c

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 16 · Water and irrigation

Existing form reference: 9f0e3d9806f9372e

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Gal Oya Flood 2016 · Flood Inundation GND · Water and irrigation

Existing form reference: 0896be503f933851

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Gal Oya Flood 2016 · Flood Inundation DSD · Water and irrigation

Existing form reference: edc275f80f311458

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Gal Oya Flood 2016 · Flood Inundation Area · Water and irrigation

Existing form reference: 621723d9774991dd

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 11 · Water and irrigation

Existing form reference: 66a5f593af6cf0f5

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Deduru Oya Flood 2018 · Flood Inundation DSD · Water and irrigation

Existing form reference: 7babdebde5c3a59f

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Deduru Oya Flood 2018 · Flood Inundation GND · Water and irrigation

Existing form reference: 8ef6df7ed78bd257

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Deduru Oya Flood 2018 · Flood Inundation Area · Water and irrigation

Existing form reference: 6e945531b3cfca82

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 6 · Water and irrigation

Existing form reference: ad60f9303374d50c

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Attanagalu Oya Flood 2018 · Flood Inundation GND · Water and irrigation

Existing form reference: f1156d2a9872139a

FieldUnitRequired
Source record IDConfirm if neededNo
Grama Niladhari divisionConfirm if neededNo
gnd noConfirm if neededNo
gnd cConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
admin codeConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Attanagalu Oya Flood 2018 · Flood Inundation DSD · Water and irrigation

Existing form reference: 64d7a48f5360398d

FieldUnitRequired
Source record IDConfirm if neededNo
Join CountConfirm if neededNo
TARGET FIDConfirm if neededNo
ProvinceConfirm if neededNo
province cConfirm if neededNo
DistrictConfirm if neededNo
district cConfirm if neededNo
Divisional secretariatConfirm if neededNo
dsd cConfirm if neededNo
Flood event / areaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Attanagalu Oya Flood 2018 · Flood Inundation Area · Water and irrigation

Existing form reference: 23c4010edccc9e62

FieldUnitRequired
Source record IDConfirm if neededNo
Flood event / areaConfirm if neededNo
Publisher labelConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
River Basin · source layer 1 · Water and irrigation

Existing form reference: 9cee3fab75edb4bf

FieldUnitRequired
Source record IDConfirm if neededNo
Watershed nameConfirm if neededNo
Wshed NoConfirm if neededNo
SubRivBasNConfirm if neededNo
Sub RivBasConfirm if neededNo
AreaConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
rivers · Water and irrigation

Existing form reference: bddcc1162ffe3b29

FieldUnitRequired
OIDConfirm if neededNo
NameConfirm if neededNo
FolderPathConfirm if neededNo
SymbolIDConfirm if neededNo
AltModeConfirm if neededNo
BaseConfirm if neededNo
ClampedConfirm if neededNo
ExtrudedConfirm if neededNo
SnippetConfirm if neededNo
PopupInfoConfirm if neededNo
Source geometry lengthConfirm if neededNo
Buffer of hydrostations · Water and irrigation

Existing form reference: a0f586c57ced7d89

FieldUnitRequired
Source record IDConfirm if neededNo
noConfirm if neededNo
stationConfirm if neededNo
latitudeConfirm if neededNo
longitudeConfirm if neededNo
basinConfirm if neededNo
Buffer distance in MetersConfirm if neededNo
ORIG FIDConfirm if neededNo
Area in Square KilometersConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
gauges · Water and irrigation

Existing form reference: 10375802bd0f4154

FieldUnitRequired
Source record IDConfirm if neededNo
River BasinConfirm if neededNo
GaugeConfirm if neededNo
Water Levelstation unit; select a stationNo
Rain FallmmNo
Source record createdConfirm if neededNo
Source record editedConfirm if neededNo
alertpullstation unit; select a stationNo
minorpullstation unit; select a stationNo
majorpullstation unit; select a stationNo
stations · Water and irrigation

Existing form reference: c0d33ca136364cb4

FieldUnitRequired
Source record IDConfirm if neededNo
noConfirm if neededNo
stationConfirm if neededNo
latitudeConfirm if neededNo
longitudeConfirm if neededNo
basinConfirm if neededNo
TributoryConfirm if neededNo
Alert LevelConfirm if neededNo
Minor Flood LevelConfirm if neededNo
Major Flood LevelConfirm if neededNo
UnitConfirm if neededNo
Elivation m MSLm MSLNo
groupbySummary · Water and irrigation

Existing form reference: 6a3ee4ad7513e95e

FieldUnitRequired
Source record IDConfirm if neededNo
Join IDConfirm if neededNo
gaugeConfirm if neededNo
Sum Rain FallmmNo
Count of PointsConfirm if neededNo
Irrigable Area · Water and irrigation

Existing form reference: ec64c51bcb7a13ab

FieldUnitRequired
Reservoir · Water and irrigation

Existing form reference: a4a0cc679fd52fa5

FieldUnitRequired
Bund · Water and irrigation

Existing form reference: 1f490c8006777e68

FieldUnitRequired
Sluice · Water and irrigation

Existing form reference: 1799548d75c1577b

FieldUnitRequired
Spill · Water and irrigation

Existing form reference: 092220ad7d168ad3

FieldUnitRequired
Canal System · Water and irrigation

Existing form reference: 018e6b3de43e55a7

FieldUnitRequired
Flood 30Nov2025 · source layer 0 · Water and irrigation

Existing form reference: d7be90171f7bd605

FieldUnitRequired
OBJECTID 1Confirm if neededNo
RiverBasinConfirm if neededNo
Source geometry areaConfirm if neededNo
Source geometry lengthConfirm if neededNo
Major reservoirs · current readings · Water and irrigation

Existing form reference: 2942a78ac9121012

FieldUnitRequired
Publisher reservoir IDConfirm if neededNo
Week NoConfirm if neededNo
Update DateConfirm if neededNo
ReservoirConfirm if neededNo
LatitudeConfirm if neededNo
LongitudeConfirm if neededNo
RangeConfirm if neededNo
DivisionConfirm if neededNo
Irrigable areaacresNo
Full supply depthftNo
Gross Capacity Acftacre-ftNo
Dead Storage Acftacre-ftNo
Active Storage Acftacre-ftNo
DateConfirm if neededNo
Water Depth ftftNo
Gross Storage Acftacre-ftNo
Effective Storage Acftacre-ftNo
Effective storage percentage%No
Preceding-day rainfallmmNo
SpillingConfirm if neededNo
RemarksConfirm if neededNo
Downstream impactConfirm if neededNo
Spill dischargecusec (publisher)No
Remaining storage (publisher)acre-ftNo
Major reservoirs · Maha seasonal history · Water and irrigation

Existing form reference: 620e4a73d4ea0be0

FieldUnitRequired
Publisher reservoir IDConfirm if neededNo
UPDATED DATEConfirm if neededNo
RESERVOIRConfirm if neededNo
LATITUDEConfirm if neededNo
LONGITUDEConfirm if neededNo
RANGEConfirm if neededNo
DivisionConfirm if neededNo
Active Storage (Acft)acre-ftNo
Long-term averageacre-ftNo
ES 20 21 Acftacre-ftNo
ES 21 22 Acftacre-ftNo
ES 22 23 Acftacre-ftNo
ES 23 24 Acftacre-ftNo
ES 24 25 Acftacre-ftNo
ES 25 26 Acftacre-ftNo
ES 26 27 Acftacre-ftNo
Major reservoirs · Yala seasonal history · Water and irrigation

Existing form reference: 560087607361a247

FieldUnitRequired
IDConfirm if neededNo
Publisher reservoir IDConfirm if neededNo
UPDATED DATEConfirm if neededNo
RESERVOIRConfirm if neededNo
LATITUDEConfirm if neededNo
LONGITUDEConfirm if neededNo
RANGEConfirm if neededNo
DivisionConfirm if neededNo
Active Storage (Acft)acre-ftNo
Long-term averageacre-ftNo
EFFECTIVE STORAGE (Acft) 2022acre-ftNo
EFFECTIVE STORAGE (Acft) 2023acre-ftNo
EFFECTIVE STORAGE (Acft) 2024acre-ftNo
EFFECTIVE STORAGE (Acft) 2025acre-ftNo
EFFECTIVE STORAGE (Acft) 2026acre-ftNo
Medium reservoirs · Yala seasonal history · Water and irrigation

Existing form reference: c349e5c98d02782a

FieldUnitRequired
Publisher reservoir IDConfirm if neededNo
Update DateConfirm if neededNo
ReservoirConfirm if neededNo
LatitudeConfirm if neededNo
LongitudeConfirm if neededNo
RangeConfirm if neededNo
DivisionConfirm if neededNo
Active Storage (Acft)acre-ftNo
Long-term averageacre-ftNo
EFFECTIVE STORAGE (Acft) 2023acre-ftNo
EFFECTIVE STORAGE (Acft) 2024acre-ftNo
EFFECTIVE STORAGE (Acft) 2025acre-ftNo
EFFECTIVE STORAGE (Acft) 2026acre-ftNo
Medium reservoirs · Maha seasonal history · Water and irrigation

Existing form reference: ade3b5a99ab49e1d

FieldUnitRequired
Publisher reservoir IDConfirm if neededNo
Update DateConfirm if neededNo
ReservoirConfirm if neededNo
LatitudeConfirm if neededNo
LongitudeConfirm if neededNo
RangeConfirm if neededNo
DivisionConfirm if neededNo
Active Storage (Acft)acre-ftNo
Long-term averageacre-ftNo
ES 24 25 Acftacre-ftNo
ES 25 26 Acftacre-ftNo
ES 26 27 Acftacre-ftNo
Medium reservoirs · current readings · Water and irrigation

Existing form reference: 78fedd1e1892ca18

FieldUnitRequired
Publisher reservoir IDConfirm if neededNo
Week NoConfirm if neededNo
Update DateConfirm if neededNo
ReservoirConfirm if neededNo
LatitudeConfirm if neededNo
LongitudeConfirm if neededNo
RangeConfirm if neededNo
DivisionConfirm if neededNo
Irrigable areaacresNo
Full supply depthftNo
Gross Capacity Acftacre-ftNo
Dead Storage Acftacre-ftNo
Active Storage Acftacre-ftNo
DateConfirm if neededNo
Water Depth ftftNo
Gross Storage Acftacre-ftNo
Effective Storage Acftacre-ftNo
Effective storage percentage%No
Preceding-day rainfallmmNo
SpillingConfirm if neededNo
RemarksConfirm if neededNo
Remaining storage (publisher)acre-ftNo
Published project technical details · Water and irrigation

Existing form reference: official-projects

FieldUnitRequired
ProjectConfirm if neededNo
ComponentConfirm if neededNo
ParameterConfirm if neededNo
Source pageConfirm if neededNo
Irrigation publications · Water and irrigation

Existing form reference: official-publications

FieldUnitRequired
PublicationConfirm if neededNo
TypeConfirm if neededNo
Publication periodConfirm if neededNo
Data availabilityConfirm if neededNo
Publisher documentConfirm if neededNo

5. Documents and images

Your institution has its own document and image library. Use the same library for reports, photos and other evidence.

Irrigation Department Documents and images prototype screen
Irrigation Department. Prototype screen. Select the image to enlarge it.

What you can try

  1. Open Documents and images. Check the institution name.
  2. Use All files, Documents or Images to find a file. Open its preview or download the original.
  3. Use a sample file to try Add file. Private is the starting choice. Public needs a source, permission to share and review.
  4. Use Access preview to try the institution reviewer and Public visitor views.

Files added in the prototype stay in this browser. Public sharing is an access preview. Existing public reference links already work online.

What your institution needs to confirm

6. Data structure management

Data structure keeps the existing source tree, records, charts and map. Manage structure adds a place to propose changes to definitions.

Irrigation Department Data structure management prototype screen
Irrigation Department. Prototype screen. Select the image to enlarge it.

What you can try

  1. Open Data structure and choose Manage structure.
  2. Use Add base domain for a main information area. Add inside creates a subject area, a nested subject, an entity type or a field under the right parent.
  3. Give the definition a clear name, code and meaning. Reuse an existing definition when the meaning is the same.
  4. For a field, check the data type, unit, required value, limits and missing-value rule. Save a Draft, then try the separate reviewer view.

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.

What your institution needs to confirm

7. Users and access

User management shows example profiles for each institution. People and Roles and access let you review the proposed account screens.

Irrigation Department Users and access prototype screen
Irrigation Department. Prototype screen. Select the image to enlarge it.

What you can try

  1. Open User management and choose the institution. The rows are examples, not a list of your staff.
  2. Use View access to check a role. An administrator title alone does not give access to Private files.
  3. Try Preview invitation or Preview access change. Check the role, start date, optional end date and reason.
  4. Review the example permissions and tell us which job roles should receive each one.

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.

What your institution needs to confirm

8. Can you share data regularly?

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.

9. Anything else we should change?

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.