Underground tank leak detection in Khafji: cost & published offers

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

Underground tank leak detection in Khafji: the local context

Khafji is about 2 km from the sea coast (OpenStreetMap). The centre of Khafji sits about 9 m above sea level (SRTM open elevation data).

Main roads in or near Khafji: King Abdullah Road. Team note on Khafji: 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..

Underground tank leak detection in Khafji most often begins with a simple worry: a fuel or water tank that seems to be losing volume, a fuel bill that no longer adds up, or a damp patch appearing near the tank pit. For homes and small commercial sites, the problem usually sits in the tank shell, the fittings, or the pipework connected to it. Because the tank is buried, the first signs are rarely visible, so a careful check of stock levels and nearby ground condition is often the starting point before any excavation is discussed.

Local conditions change how that check is carried out. The centre of Khafji sits about 9 m above sea level, according to SRTM open elevation data, and the town lies about 2 km from the sea coast, based on OpenStreetMap. Those two facts matter because a site close to the coast can see different groundwater behaviour than an inland plot, and a tank that is only slightly above sea level may be more exposed to seasonal moisture around its base. A survey here should therefore look at the surrounding ground and any water ingress around the tank pit, not only at the tank itself. Where a coating repair is needed, the internal coating of a tank is priced in the published range of SAR 25–60 per m², which gives a sense of how the scope of the work scales with the size of the tank.

Before booking a visit, ask the provider to explain exactly how they will test for leaks, whether the test covers the tank, the fittings and the connecting pipes, and what they will do if the test shows a problem they did not expect. Ask whether they will measure the tank's surface area so you can compare any coating quote with the published per-square-metre range. Confirm in writing what is included in the visit fee and what would be quoted separately. Finally, ask how the site will be left after the inspection, including how any disturbed ground is reinstated. A clear answer to each of these points will show whether the provider understands the specific conditions of this part of the Eastern Province.

Prices shown on this page come from our own published price list for the city; the final price is set after inspection.

Signs worth paying attention to

These are the signs most often linked to underground tank leak detection:

• Damp or salt marks on the tiles above the tank
• The tank needs refilling faster than usual
• The pump runs for longer periods

The most common causes

• Cracks in the concrete tank walls or floor.
• Construction joints and corners.
• A common cause: a float valve that does not close, so water is wasted.

Tools we use in Khafji

How the work is done, step by step

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.

Facts and costs — Khafji

Common questions about underground tank leak detection in Khafji

Common mistakes we see

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

What you receive

The written output: the written level-test result and the recommended next step. The report is numbered and can be checked with its verification code.