Where conditions allow, preserve storage and service while the internal inspection or cleaning is completed.
DIVER RESERVOIR SERVICES · CANADA
Diver reservoir services.
Protect water. Prove condition.
Canada-wide Diver Reservoir Services for potable, fire-water and industrial reservoirs—combining sanitary commercial-diving procedures, direct inspection, sediment removal, minor intervention and decision-ready reporting.
FEATURED / DIVER RESERVOIR FIELD FILMCleaning, Inspection & Repairs
AWWASanitary workflows
NFPAFire-water support
LIVEService continuity
CANADANationwide capability
Potable and critical water storage
Keep the reservoir full.
Bring the inspector closer.
Diver Reservoir Services combine direct human observation and hands-on cleaning with the sanitary controls required for critical water infrastructure.
Ven-Tech supports municipal utilities, First Nations, health authorities, fire-protection systems, industrial facilities and engineering teams across Canada. Every project begins with tank construction, water use, access, operating status, previous records, known concerns and the decision the work must support.
Where the assessment and owner requirements permit, the team can inspect or clean a reservoir while it remains full. This can reduce treated-water loss, dewatering, shutdown and restoration requirements while providing close access to structural, mechanical and coating components.
Surface-supplied divers work with live communications and surface supervision. Potable-water preparation, equipment handling, cleaning systems, water-quality checks, inspection routes, hold points and final reporting are connected in one project-specific work package.
Sanitary field proceduresCSA-aligned diving controlsDecision-ready evidence
Use close visual and tactile access for components, deposits and anomalies that require more than remote imagery.
Target deposits and debris that affect reservoir condition, water quality or fire-water suction reliability.
Connect video, images, observations, readings and limitations to maintenance and engineering decisions.
Diver Reservoir Services capabilities
Direct access.
Complete field support.
From a focused internal inspection to sediment removal and minor intervention, the field system is configured around the reservoir and required outcome.
01Potable reservoir inspection
Close, hands-on inspection of accessible roofs, columns, walls, floors, baffles, ladders, joints, coatings, penetrations, inlets and outlets with live communications and organized HD evidence.
02Diver-led sediment removal
Diver Reservoir Services use controlled vacuuming and removal of accumulated sediment and debris, with potable-water procedures and cleaning coverage configured around tank geometry, fixed internals, suction components and owner priorities.
03Potable-grade commercial diving
Diver Reservoir Services use surface-supplied commercial divers, dedicated or properly segregated equipment and a documented sanitary plan for direct inspection, cleaning, sampling assistance and targeted maintenance.
04ROV-assisted reconnaissance
Diver Reservoir Services can integrate potable-grade ROV reconnaissance where remote imagery helps confirm access, water condition, submerged geometry or priority areas before hands-on diver inspection and cleaning.
05Measurements & NDT support
Add accessible dimensions, sediment-depth observations, ultrasonic thickness readings, coating review and other project-specific inspection tools when the material and engineering question require them.
06Water quality & reporting
Coordinate agreed chlorine-residual and turbidity checks, indexed video, annotated images, component observations, cleaning records, limitations and prioritized recommendations for owner and engineering review.
Standards-led execution
AWWA and NFPA.
Applied, not advertised.
Standards inform the project work package. Ven-Tech connects sanitary control, inspection coverage, tank condition and reporting to the current applicable edition, owner requirements and governing authority.
Potable water storage
AWWA C652
AWWA C652 addresses disinfection of water-storage facilities and includes procedures relevant to underwater inspection or cleaning. Diver Reservoir Services use documented sanitary preparation developed around the facility and proposed work.
- Potable-only or properly segregated equipment
- Defined equipment cleaning and disinfection
- Contamination-prevention and access controls
- Project-specific water-quality checks
- Traceable inspection and sanitary records
Fire-water storage
NFPA 25
NFPA 25 addresses inspection, testing and maintenance of water-based fire-protection systems, including water-storage tanks. Diver Reservoir Services support internal condition and sediment work within the owner’s broader compliance program.
- Internal surfaces, coatings and visible corrosion
- Ladders, braces, inlets, outlets and screens
- Sediment around suction components
- Project-specific UT thickness readings
- Evidence organized for owner review
Service continuity
Keep water available.
Control the work.
A filled reservoir can preserve storage capacity—but only when sanitary, operational and diving requirements are properly controlled.
For Diver Reservoir Services, Ven-Tech reviews isolation, water movement, access, tank height, fall protection, communication, emergency recovery, cleaning discharge and water-quality monitoring before entry. The owner retains authority over the reservoir and system operation throughout the work.
- 01 Confirm whether in-service work is appropriate
- 02 Define sanitary preparation and equipment handling
- 03 Coordinate reservoir operation and work boundaries
- 04 Verify cleaning, inspection and reporting coverage
Component-level inspection
Inspect the route.
Not random snapshots.
Diver Reservoir Services follow an agreed internal route so the accessible tank components and known priority locations are addressed systematically.
Roof, walls & floor
Accessible cracking, spalling, staining, corrosion, coating condition, deposits, debris and other visible surface anomalies.
Columns, braces & baffles
Condition, alignment, connections, coating loss, fouling and visible deterioration of internal structural components.
Ladders & access systems
Visible condition of ladders, hatches, platforms, fall-protection interfaces and submerged access components.
Inlets, outlets & overflows
Obstructions, sediment proximity, visible damage, seals, screens, diffusers and connected internal components.
Joints, seams & penetrations
Visible leakage indicators, seal condition, corrosion, gaps, displacement and anomalies requiring engineering review.
Sediment & debris
Distribution, approximate depth where included, material observations, intake risk and areas prioritized for removal.
Coatings & metallic surfaces
Blistering, delamination, holidays, exposed substrate and visible corrosion, supported by NDT when specified.
Previous repairs & findings
Follow-up review of documented defects, repairs, patches and priority locations identified in earlier records.
Ven-Tech company and field films
Meet the team.
Watch the work.
The About Ven-Tech film introduces the people and integrated capability supporting Diver Reservoir Services. The reservoir film shows inspection and cleaning in the field.
01 / ABOUT VEN-TECH
Meet the team behind the work
Commercial diving experience, robotic technology, field environments and the operating philosophy supporting difficult infrastructure projects.
02 / RESERVOIR FIELD WORK
Inspection and cleaning in operation
See how Ven-Tech organizes access, commercial diving, reservoir coverage and field documentation around critical water storage.
Six-stage project workflow
Before the hatch.
Through final report.
A controlled Diver Reservoir Services workflow keeps the owner, supervisor, diver and reporting team aligned from planning through closeout.
Understand the reservoir
Confirm construction, dimensions, access, water use, operating status, drawings, previous reports, known concerns and the decision the work must support.
Develop the sanitary work package
Define equipment preparation, disinfection, potable-water controls, diver method, cleaning system, isolation, water-quality checks, rescue and field QA.
Confirm readiness before entry
Check personnel, equipment, water and site conditions, access, communications, emergency arrangements, cleaning route and owner authorization before the hatch is opened.
Inspect, clean and intervene
Complete the approved coverage and sediment-removal scope while maintaining live communication, sanitary discipline and surface-supervisor verification.
Review evidence before demobilization
Check media, observations, cleaning coverage, readings and limitations while the team remains available to address important gaps.
Issue decision-ready results
Provide the agreed video, photographs, measurements, water-quality records, findings, cleaning status and prioritized follow-up recommendations.
Diver Reservoir Services deliverables
Evidence built
for the next decision.
The final package connects reservoir condition, completed cleaning, water context, limitations and recommended action.
Indexed HD video
Organized internal footage linked to reservoir components, inspection routes, cleaning areas and identified observations.
Annotated photographs
Clear still images identifying notable conditions, sediment, completed work and maintenance or engineering priorities.
Inspection register
Component-by-component observations, accessible measurements, limitations and locations requiring further review.
Water-quality records
Agreed chlorine-residual, turbidity or other project readings documented with the operating context and time.
Sediment-removal record
Completed areas, methods, observed material, restrictions and any remaining inaccessible or adhered deposits.
Final report & recommendations
A concise report connecting the field evidence to maintenance, repair, engineering assessment or future monitoring.
Potable-water sanitary control
Clean equipment.
Controlled entry.
Diver Reservoir Services require a documented sanitary system—not simply clean-looking equipment.
The work package addresses equipment history and segregation, cleaning, disinfection, handling after preparation, protective equipment, access control, diver health, contamination prevention and response to an unexpected condition. Disinfectant, concentration, contact time, sampling and water-quality requirements are confirmed against the current applicable standard and owner procedure.
Site-specific commercial-diving controls remain equally important. The diving supervisor confirms crew, air supply, communication, emergency support, access and recovery arrangements, water movement, tank geometry and the work route before authorizing entry.
Review WorkSafeBC Part 24 ↗HSE and contractor assurance
Potable controls.
Commercial-diving discipline.
Diver Reservoir Services are delivered within Ven-Tech’s company-wide HSE and contractor-assurance system. Qualifications and procedures are confirmed for the specific jurisdiction, reservoir, water use, access, field tasks and client requirements.
BCCSA COR® CertifiedISNetworld Member ContractorISNetworld ESG BadgeAvetta ApprovedCognibox CertifiedAlcumus SafeContractorCSA Z275 diving frameworkWorkSafeBC Part 24WCB Alberta & SaskatchewanPotable-water sanitary proceduresCWB visual inspection capabilityCSWIP 3.1U / 3.2U capability
Documented project outcomes
Safety claims supported
by field records.
The existing Ven-Tech reservoir record presents two WorkSafeBC site-audit outcomes for potable-water projects.
CASE 01 / 100-FT RESERVOIR
Cowichan Bay
Reported result: zero violations or deficiencies, zero orders and documented alignment with project CSA, WorkSafeBC and AWWA requirements.
CASE 02 / 50-FT RESERVOIR
Penelakut Tribe
Reported result: zero violations or deficiencies, zero orders and documented alignment with project CSA, WorkSafeBC and AWWA requirements.
Organizations across Canada
Water assets that
cannot be ignored.
Diver Reservoir Services for organizations responsible for drinking-water quality, process-water continuity and fire-protection storage.
01Municipal utilities & public works↗
02First Nations & remote communities↗
03Health authorities & institutions↗
04Oil, gas & energy facilities↗
05Mining & resource operations↗
06Engineering & environmental consultants↗
07Fire-protection contractors↗
08Industrial & manufacturing facilities↗
Diver Reservoir Services FAQ
Questions before
the hatch opens.
Send the reservoir information and operating requirements. Ven-Tech will help determine whether diver entry and in-service work are appropriate.
Can Diver Reservoir Services be completed without draining the tank?+
Many Diver Reservoir Services projects can be planned while a reservoir remains full, reducing shutdown, water loss and loss of storage capacity. Suitability depends on water use, access, isolation, sanitary procedures, owner requirements, the requested work and the applicable authority. Ven-Tech confirms the method before mobilization rather than assuming every reservoir can remain online.
What reservoir types can commercial divers inspect?+
Ven-Tech can support suitable on-grade and below-grade concrete reservoirs, clearwells, standpipes, elevated tanks, steel fire-water tanks, process-water storage and other municipal or industrial water assets. Construction, contents, access opening, height, internal geometry, water condition and operating status are reviewed before entry.
How is diving equipment prepared for potable water?+
The project sanitary plan defines equipment segregation, cleaning, disinfection, handling, entry controls, contamination prevention and records appropriate to the current standard, facility and owner requirements. Potable-water work should never rely on a generic cleaning statement without confirming equipment history, disinfectant, contact requirements and site procedures.
What does a diver inspect inside a reservoir?+
Typical coverage can include accessible roofs, columns, walls, floors, baffles, ladders, braces, joints, seams, penetrations, coatings, inlets, outlets, overflows, screens, previous repairs, sediment and debris. The inspection route and reporting references are agreed before entry so the final record is complete and reviewable.
Can divers clean sediment while the reservoir remains in service?+
Where the owner and project assessment allow, divers can operate a suitable vacuum or pumping system while the tank remains full. Geometry, fixed components, sediment character, discharge arrangements, water quality, available isolation and operational limitations determine the achievable cleaning coverage and method.
How do AWWA C652 and NFPA 25 apply?+
AWWA C652 addresses disinfection of water-storage facilities and includes procedures relevant to underwater inspection or cleaning of potable-water storage. NFPA 25 addresses inspection, testing and maintenance of water-based fire-protection systems, including water-storage tanks. The current applicable edition, authority, owner requirements and facility configuration determine the project obligations.
What is included in the final reservoir report?+
A Diver Reservoir Services package can include indexed HD video, annotated photographs, a component observation register, sediment and cleaning records, accessible measurements, water-quality readings, NDT results where included, limitations and prioritized recommendations. Deliverables are confirmed before mobilization.
What information is needed for a Diver Reservoir Services proposal?+
Provide the location, reservoir construction and dimensions, hatch size and height, water use, operating status, drawings, previous reports, recent water information, known defects, desired inspection or cleaning outcome, schedule and site contact. Hatch, roof and work-area photographs are especially useful for access planning.
Canada-wide reservoir support
Protect the water.
Plan the entry.
Send the facility location, reservoir construction and dimensions, hatch details, water use, operating status, known concerns and required work. Ven-Tech will provide a practical first review for Diver Reservoir Services.