What We Deliver
Every Butek-Portstoken project begins with a clear understanding of what the water company needs to achieve — and everything we deliver is built around making that outcome happen safely, compliantly, and on programme.
Our turnkey model means we hold accountability at every stage. One supplier. One contract. We manage the complexity, the compliance, and the risk.
Resilience Enablement — Before the Programme Window Opens
Where a site is a known candidate for future temporary storage — a reservoir in the refurbishment pipeline, a tower scheduled for AMP8 intervention, or a strategic resilience location — Butek-Portstoken can provide early-stage resilience enablement.
This may include:
• Site-specific Alternative Storage Solution Plans suitable for presentation to the Drinking Water Inspectorate
• Advance planning and consenting support
• Pre-installed ground rings
• Pre-installed tie-in points
• Predefined deployment arrangements designed to remove temporary storage from the future programme critical path
For suitable sites, this transforms temporary storage from a reactive mobilisation exercise into a planned operational resilience capability that can be activated in days rather than weeks.
01 — Design & Scoping
We work with your asset management and operational teams from the outset to understand flow requirements, site constraints, hydraulic performance targets, and programme timescales. From this we design a modular, scalable solution sized to your specific operational requirement.
CDM pre-construction information, Construction Phase Plans, method statements, and risk assessments are prepared and agreed at this stage. Where relevant, we also carry out a site-specific Security Risk Assessment identifying physical and operational security requirements proportionate to the asset and site sensitivity. Planning requirements are assessed early and managed proactively.
02 — Mobilisation
Tank components, liner systems, pipework, and ancillary equipment are transported to site. Our modular systems can be man-carried and assembled on almost any site, including access-constrained locations where conventional heavy construction approaches become impractical.
03 — Foundation Preparation
Our concrete-free installation approach uses one of two proprietary foundation systems — a ground ring or surface mat — engineered to suit the ground conditions and load requirements of each deployment.
This eliminates poured concrete in the great majority of cases, significantly reducing programme time, embodied carbon, excavation requirements, and site disturbance.
Where the ground ring approach is appropriate, it can be installed well ahead of operational need and left in situ as a semi-permanent enabling asset. For sites with foreseeable future requirements, this transforms foundations from a repeat mobilisation activity into a one-off enablement investment.
Ground preparation is carried out by specialist partners working under Butek-Portstoken in a CDM principal contractor role, or alongside an appointed principal contractor.
04 — Tank Erection & Liner Installation
Bolted galvanised steel tanks are erected by our installation team. Roofs are fitted. Liners — custom-fabricated in the factory to each tank geometry — are installed, inspected, and tested before any penetrations are made.
Interior penetrations including inlet, outlet, overflow, washout, disinfection, and sample ports are fabricated in approved grades of stainless steel with welded flange connections, providing watertight, hydraulically efficient through-liner fittings that are straightforward to inspect.
All wetted and non-wetted components are Regulation 31 compliant and fully documented.
05 — Pipework & Network Connections
Associated above-ground pipework, isolation valves, non-return valves, pressure gauges, and flow meters are designed and installed to integrate the temporary installation into the existing distribution network. Where possible, top water levels are matched to existing infrastructure to minimise operational disruption.
Where pre-enablement is in scope, tie-in points and associated isolation arrangements can be installed in advance and capped ready for future use. Future deployments then become a matter of connecting infrastructure to a known, tested interface — removing live-main interventions and reducing future programme risk.
06 — Disinfection
HPV or wet chlorination disinfection is carried out to DWI requirements and the relevant water company's quality standards. All documentation, water sampling, quality parameter testing, and sign-off is managed by Butek-Portstoken. Where contact tank configurations are in use, disinfection is managed across the full staged array.
07 — Commissioning
The installation is filled and brought into service. Telemetry is confirmed live. Infrastructure does not enter drinking water service until all required operational and water quality checks have been completed.
08 — Operational Period
Infrastructure remains operational for as long as required — days, months, or longer. Ongoing monitoring, maintenance visits, telemetry surveillance, and security measures are maintained throughout the operational period.
09 — Decommissioning & Reinstatement
The installation is isolated, drained, dechlorinated, dismantled, and removed. The site is reinstated to pre-works condition. Equipment returns to our operational fleet for inspection, refurbishment, and redeployment. No permanent infrastructure legacy remains.
