Bothasig sits near the edge of the sandy ground, so the depth of cover over the rock beneath is the question that decides whether you need a borehole at all.
Establish that first, because a wellpoint costs a fraction of a borehole where the sand allows one.
What Is Under Bothasig
| Formation | Where it sits | What it means for drilling |
|---|---|---|
| Malmesbury Group | Beneath the area and at surface across the higher ground | Modest default yields. The productive holes are those that intersect fracture and fault zones. Salinity tends to run higher than in sandy ground. |
| Cape Granite Suite | Reaching into parts of the area | Weathered mantle and jointing hold the water. Contact zones with the shale are worth targeting. |
| Sand and superficial cover | Variable, thicker toward the Cape Flats side | Where it has useful depth it can hold shallow water. Where thin, it is only overburden to drill through. |
Send your street and what the water is for, and get an itemised quote for Bothasig.
Get a Bothasig Borehole QuoteWhat That Means for Your Borehole
- What sits under your stand varies street by street, which is why quotes differ so much locally.
- Measure conductivity, chloride and sodium. Higher salinity is characteristic of the rock here.
- The drilling blow yield overstates things. Only a proper test gives a figure worth sizing a pump on.
Where We Work Around Bothasig
- Bothasig and Bosbell
- Richwood and the Edgemead boundary
- Sanddrift-side approaches
- Bothasig Industrial premises
- Complexes and estates through the suburb
- Monte Vista boundary streets
- Smaller stands in the older sections
What to Watch For Here
Cover depth varies street to street. Two properties a short distance apart can sit on very different thicknesses of sand over the rock, which changes the drilling method, the casing and whether a point is possible. A site assessment settles it quickly and cheaply.
Modest stand sizes through much of Bothasig mean irrigation demand is lower than in the big-garden suburbs, which often tips the economics toward a wellpoint rather than a full borehole.
What the Water Is Used For
- Garden and lawn irrigation on the residential stands
- Communal landscaping across complexes and estates
- Pool make-up water where testing shows it is suitable
- Cisterns and washing machines, on plumbing kept separate from the mains
- Light industrial washdown
- A reserve to draw on during supply outages
Wellpoint or Borehole?
Usually ruled out by cover depth. A point needs a decent thickness of sand and a shallow table, and most of this ground offers neither. Toward the Cape Flats side the cover deepens and it becomes a question worth asking rather than dismissing.
Registration and Abstraction
Boreholes and wellpoints here must be registered with the City of Cape Town. Separately, the National Water Act governs how much you may abstract: reasonable domestic use and small-scale garden watering generally fall under Schedule 1, while larger abstraction may require registration or a water use authorisation from the Department of Water and Sanitation. Requirements change, so confirm your position before drilling.
Related Services
For the drilling process itself, the geology across the wider metro and how a quote is put together, see Borehole Drilling Cape Town.
Borehole Prices in This Area
Drilling is charged per metre, so depth drives the total. The ranges below are framed for local ground conditions and access.
| Item | Indicative range | What moves it locally |
|---|---|---|
| Drilling, per metre | R450 - R1,100 /m | Depends which formation you hit. Sandy cover drills fast; the Malmesbury rock and granite beneath it do not. |
| uPVC casing, installed, per metre | R400 - R700 /m | Diameter and class. Weathered-zone thickness is not known until drilling starts. |
| Mobilisation and site establishment | R2,500 - R9,000 | Access and site conditions move this; a site visit settles it before quoting. |
| Water survey | R5,000 - R12,000 | Targets structure rather than depth. Worth most where yield is fracture-dependent. |
| Yield testing | R3,500 - R15,000 | Establishes the sustainable rate that pump selection depends on. |
| Pump, supplied and installed | R15,000 - R45,000 | Greater depth means more head, which means a larger pump and heavier cable. |
| Storage and booster | R12,000 - R35,000 | Needed wherever peak demand exceeds the borehole's sustainable rate. |
| Typical complete project | R65,000 - R190,000+ | Everything above, excluding treatment, which depends entirely on the water analysis. |
These are indicative ranges, not a quotation. They are compiled from published South African supplier and contractor pricing to give you a starting point for budgeting. They are not our rate card, and no figure here is a commitment.
Treat them as a broad guide only. Published borehole pricing in South Africa varies enormously - different 2026 guides quote per-metre drilling rates for the same province that differ by a factor of three - because depth, geology, access, specification, distance and fuel costs all move the number. Depth in particular is not known until the hole is finished. Figures generally exclude VAT unless noted, and change over time. Only an itemised written quote against your actual site means anything.
Bothasig Borehole FAQs
Do I need a borehole in Bothasig or will a wellpoint do?
It depends on how much sand sits over the rock beneath your stand, which varies noticeably across the suburb. Where cover is deep enough and the water table shallow, a point handles garden irrigation for a fraction of the cost.
Where the cover is thin, a point has nothing to work with and a drilled borehole is the only route. Establish cover depth before pricing anything.
How much water does a Bothasig property actually need?
Less than the big-garden suburbs, because stand sizes here are generally modest. That matters, because it often means a wellpoint's yield is genuinely sufficient rather than a compromise.
Work from the irrigated area rather than from the plot size, and size storage only if peak demand outruns what the ground sustains.
Is Bothasig groundwater good quality?
Where it draws from the sandy cover, iron staining is the usual complaint and salinity is worth checking. Where it draws from the Malmesbury rock beneath, salinity is the more likely issue.
Either way a laboratory analysis decides what treatment, if any, is worth fitting - guessing at it wastes money in both directions.
Can I use it inside the house?
Only after testing, and the shallower the source the more that matters. Shallow water beneath dense suburban development is exposed to whatever reaches the ground above it.
Where the property also has a municipal supply, the two must be kept properly separated with no possibility of backflow into the municipal system.
DRILLING IN BOTHASIG?
Send your street and what you need the water for, and get an itemised quote.
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