A “regular” residential borehole in Lagos (including areas like Fagba and Iju Ishaga) is usually in the range of about 180–250 feet deep, though exact depth depends on the local geology and water table in your specific street or compound.

Quick Scoop: Typical Borehole Depth in Lagos

Most boreholes in Lagos are drilled to tap reliable groundwater in the deeper, more stable aquifers, not just the shallow rain‑fed layers.

  • In many parts of Lagos, residential boreholes commonly fall around 200–250 feet (about 60–75 metres).
  • A Lagos well driller interviewed in a field blog noted that 240 feet is “normal” , with the deepest he had done reaching about 350 feet.
  • Forum comments from nearby OGBA (not far from Iju axis) mention typical depths of 160–230 feet for standard houses, depending on the spot.

Putting this together, 180–250 feet is a good practical band for what people generally call a “regular” borehole in that broader corridor of Lagos, including Fagba/Iju Ishaga.

Why Depth Varies by Location

Even within the same neighborhood, two compounds can need different borehole depths because:

  • Soil and rock type : Sandy or clay‑heavy soils, plus underlying rock layers, affect how deep you must go before hitting a productive aquifer.
  • Water table level : Some streets sit slightly higher or lower, so the water-bearing layer may be closer or further from the surface.
  • Nearby contamination risks : In dense Lagos neighborhoods, drillers may go deeper to avoid shallow layers that can be affected by septic tanks or drains.

Modern borehole contractors in Lagos often quote general depth ranges like 60–300 metres (about 200–980 feet), but small residential systems rarely need the extreme ends of that range.

Shallow vs “Regular” vs Deep Boreholes

You might hear different labels from drillers or in local discussions:

  • Shallow wells / very shallow boreholes (20–80 ft)
    • Tap the first, rain‑fed aquifer.
* Cheaper but more vulnerable to seasonal changes and contamination.
  • “Regular” residential boreholes (roughly 160–250 ft in Lagos mainland areas)
    • Aim for more stable, year‑round water yield.
* Common for individual houses and small apartment blocks in places like Ogba, Iju, Fagba, Agege, etc.
  • Deep boreholes (250 ft and above)
    • Often drilled for high‑demand usage or in areas where the shallower aquifers are weak or polluted.
* Industrial or large‑estate systems can go significantly deeper.

Land experts also warn that aggressive, medium‑to‑deep borehole drilling, especially without planning, can contribute to land subsidence in some parts of Nigeria.

Practical Advice If You’re Planning a Borehole

If you’re in Fagba/Iju Ishaga and trying to budget or plan:

  1. Ask neighbours with existing boreholes
    • Find out their depth and performance; this gives a very local benchmark.
  2. Insist on a geophysical survey
    • Reputable Lagos drillers use resistivity surveys to map aquifers and estimate proper depth before drilling.
 * This reduces the risk of a “dry” or low‑yield borehole.
  1. Discuss expected depth range upfront
    • For your area, a realistic planning range is around 180–250 feet for a typical residential borehole, but the contractor might adjust once they see survey results.
  1. Balance cost vs reliability
    • Going slightly deeper than the bare minimum can improve dry‑season reliability, but each extra foot adds to cost.

Mini Forum‑Style Note

In many Lagos mainland discussions, people around Ogba/Iju/Fagba often report borehole depths between about 160 feet and 230 feet, calling anything in that band a “standard” or “normal” borehole for a typical house.

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    A regular residential borehole in Fagba/Iju Ishaga, Lagos, Nigeria is typically around 180–250 feet deep, depending on local geology and water table conditions.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.