Borehole Installers Kei Mouth | Borehole Drilling Kei Mouth

Kei Mouth sits at the Great Kei River mouth on sand cover over Beaufort Group rock, at the old Transkei boundary where the ferry still crosses.

A small village with limited municipal infrastructure, which is usually what puts a borehole on the agenda.

What Is Under Kei Mouth

The formations below are what a rig actually meets on a Kei Mouth property, and between them they govern the depth, the casing requirement and what the hole will realistically give you.

Formation	Where it sits	What it means for drilling
Schelm Hoek Formation dune sand	The modern dune cordon behind the beaches	Genuinely unconsolidated and shallow. The one wellpoint target on this coast, and it needs screened casing and a gravel pack if drilled.
Nahoon Formation aeolianite	Beneath and inland of the dune sand, often on a wave-cut platform	Consolidated calcareous aeolianite with thin calcrete and palaeosols. Looks like sand, behaves like rock, and needs a drilled and cased hole.
Beaufort Group rock with dolerite	Below the coastal cover, and at surface where the cover thins	The fallback where the sand is thin. Fracture-dependent and dependent on a dolerite contact.

Send your street and what the water is for, and get an itemised quote for Kei Mouth.

Get a Kei Mouth Borehole Quote

What That Means for Your Borehole

Sand thickness decides what you are buying, and it varies sharply over short distances along this coast. A shallow screened hole and a deep hole into rock are different products at different prices.
Salinity here is an abstraction problem more than a distance problem, because over-pumping draws the saline interface toward the hole. The tested sustainable rate is the protection.
Screen slot size and gravel pack grading are what keep a sand hole running clear. It is the biggest quality difference between quotes on this coast.

Where We Work Around Kei Mouth

Kei Mouth village and the beachfront
The Great Kei River mouth and ferry side
Morgan Bay approaches
Komga and the inland road
Holiday and retirement properties
Guest houses and tourism properties

What to Watch For Here

The river mouth is tidal and the village sits close to it, so salinity is the governing design question on riverside stands.

Remoteness pushes up mobilisation, and coordinating with neighbours who also want holes drilled makes a material difference to the cost per property.

What the Water Is Used For

Irrigating coastal gardens and lawn
Rinsing salt off paving, walls and vehicles
Pool top-up, subject to what the analysis says
Standby supply through restrictions and outages
Keeping mature planting alive through summer

Wellpoint or Borehole?

Yes on the dune cordon and the river alluvium at the estuaries, and this is one of the better stretches of the province for it. Not in the Nahoon aeolianite, which is consolidated despite looking like compacted sand.

Water Quality in Kei Mouth

Coastal sand water here is vulnerable to whatever happens at surface, because recharge is quick, so bacteriological testing belongs on the list. Saline intrusion is the other constraint near the estuaries and the shoreline, and iron is a common nuisance that stains rather than harms.

A water analysis is what turns that from a general expectation into a number for your specific hole, and treatment should be specified against the result rather than against the area's reputation.

Registration and Abstraction

Groundwater itself is regulated nationally rather than municipally, and we could not find a published borehole by-law for this district municipality. As the water services authority it can still require approval before a property draws on an alternative supply, so we confirm the local position before drilling rather than assuming it. Separately, the National Water Act governs how much you may abstract. Reasonable domestic use and small-scale garden watering generally fall under Schedule 1 and need no licence or registration, but taking more than 10 cubic metres a day from groundwater on a property must be registered, and irrigation or commercial volumes usually require registration or a water use authorisation from the Department of Water and Sanitation.

Related Services

Borehole Water Survey South AfricaDeciding where to drill Borehole Testing South AfricaWhat the borehole sustainably yields Borehole Pumps Installation South AfricaPumps sized to tested yield Borehole Tank Installation South AfricaStorage for irrigation peaks Borehole Water Testing South AfricaQuality and salinity analysis Borehole Drilling Prices South AfricaHow a quote is structured

For the drilling process itself, the geology across the rest of the country and how a quote is put together, see Borehole Installers South Africa.

Borehole Prices in Kei Mouth

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 - R1,000 /m	Sand drills fast and shallow, so drilling is rarely the biggest line on a coastal quote. Where the hole goes into rock, that changes.
uPVC casing, installed, per metre	R450 - R800 /m	Screened casing and gravel pack through the producing sand. This is where the cost sits on a sand hole, and where corners get cut.
Mobilisation and site establishment	R2,500 - R14,000	Access, distance 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	R60,000 - R170,000+	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.

Kei Mouth Borehole FAQs

Is Kei Mouth a difficult place to get a rig to?

It is a long way from the nearest contractor base, so mobilisation is a real cost rather than a padded one.

If several properties in the village are considering drilling, organising it in one window is the single most effective way to reduce what each one pays.

Can a guest house rely on a borehole here?

Many do, because the alternative is often limited. The demand profile is peaky, concentrated in holiday season.

That suits storage: a modest yield filling tanks steadily covers a busy weekend far better than a bigger pump on a modest hole.

Is a wellpoint an option at Kei Mouth?

On the dune cordon, often yes, and for garden irrigation it does the job at a fraction of a borehole's cost.

The thing to watch is that the Nahoon Formation inland of the dunes is consolidated aeolianite. It looks like sand and cannot be driven, so a point that works on one stand may be impossible on the next.

Will a borehole at Kei Mouth turn salty?

Only if it is pumped harder than the ground recharges. Proximity to the sea sets the risk; the pumping rate decides whether it materialises.

Yield testing establishes the sustainable rate and the pump is specified to it. Reversing rising salinity afterwards is far harder than designing for it.