Underground tank leak detection for warehouses in Jubail

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

What is specific about Jubail for underground tank leak detection

Team note on Jubail: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins.. Jubail is about 0.9 km from the sea coast (OpenStreetMap).

The centre of Jubail sits about 4 m above sea level (SRTM open elevation data).

Underground tank leak detection for warehouses in Jubail starts with the ground itself. The centre of Jubail sits about 4 m above sea level, and the town is about 0.9 km from the sea coast. Those two facts matter because low, coastal ground means the water table can sit close to the surface, so a tank leak has less room to disperse before it reaches groundwater or saline soil around the foundation. For that reason the first check on a warehouse site is the tank's position relative to the water table and any drainage paths that could carry a release toward the coast. Technicians will look at the tank's age, the condition of its fittings, and whether earlier monitoring records show any trend in stock or water levels.

The detailed diagnostic work is left to the site visit. Once on site, the technician will decide which test method suits the tank material, its burial depth, and the surrounding soil, and will judge whether a tightness test, a monitoring well survey, or an internal inspection is needed. Where the inner surface of a steel tank is in question, the technician may recommend recoating, and the cost of internal coating is quoted per square metre, typically SAR 25–60 per m², depending on the surface and the product chosen. The actual area, condition and access will only be known once the tank is opened up or measured, so the final figure is set during the visit rather than in advance.

To help the technician arrive prepared, the site manager should gather the tank's installation records, product types stored, the dates and results of any previous leak tests, and recent inventory reconciliation sheets. A rough site plan showing the tank location, the warehouse foundations, drains and the nearest access route is also useful. Note whether anyone has noticed fuel or chemical odours, wet patches, or unexplained losses, and when they first appeared. Clear access to the tank's fill point, vent and monitoring ports should be arranged beforehand, as well as confirmation of which utility lines run nearby. Sharing this information in advance lets the technician focus the visit on testing rather than on background questions.

For warehouses, work is phased around operations and stored goods.

Signs that call for underground tank leak detection

If you notice one of these signs in Jubail, it is a good moment to talk to the team:

• The pump runs for longer periods
• A noticeable drop in the water level overnight
• Damp or salt marks on the tiles above the tank
• The tank needs refilling faster than usual

Where the problem usually comes from

• A float valve that does not close, so water is wasted — we check this before anything else.
• Cracks in the concrete tank walls or floor.
• Construction joints and corners — we check this before anything else.

Tools we use in Jubail

From the first visit to the report

1. Safety first: Tank lids and confined spaces are handled with ventilation and a second person on site.
2. Documented level test: Filling and use are stopped and the level is recorded against time.
3. Isolating the tank from the network: This tells us whether the loss is from the tank body or from the supply line.
4. Checking the body and connections: Inlet, outlet and overflow connections are inspected.
5. Recommendation: You get the next step in writing: repair, waterproofing or a line test.

Jubail in facts and sources

Common questions about underground tank leak detection in Jubail

Mistakes that cost more

• Ignoring the float valve
• Waterproofing the tank before confirming the loss is from the tank and not the line

The written outputs

You receive: the written level-test result and the recommended next step, in a technical report with a verification code.