Landline Containment Solutions

Potable Water

Landline Ltd, established for 20 years, is experienced in working with water authorities and utilities companies involved in potable water supply. The company specialises in service reservoir refurbishment and enhancement, and also designs, manufactures and installs reservoir baffle curtains and floating covers.
Landline works on a design and build, partnering or preferred contractor basis, or on a term, framework or single contract basis. The company offers single source responsibility, and is able to provide insurance-backed warranties and term maintenance agreements on much of its work. Landline is CITB registered.

• Reservoir internal lining
Landline undertakes full reservoir internal tank refurbishment to include all concrete cleaning, preparation and crack repair using cementitious and epoxy mortars, together with lining in sprayapplied DWI approved polyurethane. Stainless steel fabrication and replacement is also undertaken.

• Reservoir roof lining
Landline provides waterproofing systems to suit specific applications. Systems are supplied and installed as loose laid or fully bonded geomembranes, or as spray- or float-coated elastomers. Landline also undertakes roof condition surveys, concrete crack repair, perimeter and lateral drainage works and backfill placement. Water testing and leak detection surveys can be performed on the completed waterproofing works.

• Baffle curtain uses
Baffle curtains are a cost-effective method of controlling water movement in service reservoirs, contact tanks and open raw water storage reservoirs.
Baffle curtains increase reservoir retention time, assist flow segregation, enhance sediment drop-out, and eliminate surface water skimming and stagnation. Additionally, they improve chemical mixing and enable reduced chlorination.

• Floating cover uses
Floating covers eliminate algae growth and contamination from airborne pollutants. They reduce evaporation losses and assist in temperature stabilisation. Covers maybe modular or may fully encapsulate the upper surface of the reservoir by being mechanically fixed and sealed around the perimeter. They can be designed to cater for fluctuating water levels, rainwater drainage, and routine access.

Yorkshire Water baffle curtain
Wansbeck floating baffle curtain, Northumbrian Water
Honour Oak S.R., Thames Water
Spray-coated Polyurethane
River Dee, floating baffle curtain, Grampian
West Lothian floating cover
Church Wilne S.R. Severn Trent
Burghmuir S.R. Scottish Water

Product Specifications

• Reservoir internal lining
Specification elastomeric: DWI Approved Polyurethane spray coating.
• Reservoir roof lining
Specification geomembrane: DWI Approved Reinforced Polypropylene
Specification elastomeric: DWI Approved Polyurethane coating
• Baffle curtains
Baffle curtains are manufactured from DWI Approved Reinforced Polypropylene. Curtains are manufactured off site with all geomembrane welding and testing being performed in factory controlled conditions. The use of prefabricated curtains ensures the highest build quality and the minimum reservoir downtime during installation.

• Floating covers
Floating covers are manufactured from DWI Approved Reinforced Polypropylene. The material offers high dimensional stability, flexibility and mechanical strength characteristics enabling the most stringent design criteria to be met. Manufacture is undertaken off site with all dimensioning, panel welding, reinforcements, and stabilisation cell components produced in factory controlled conditions.

Sitework
Experienced full time field crews perform all reservoir waterproofing and baffle curtain and floating cover installation work. All personnel are CSCS card holders, TWI welding certified, trained to work in confined spaces, and possess medical certification for working in a potable water environment.