Komga sits inland of the coast on Beaufort Group ground with dolerite, serving the dairy and stock farms between East London and the Great Kei.
Reasonable rainfall by provincial standards, with the usual dependence on intersecting structure.
What Is Under Komga
The formations below are what a rig actually meets on a Komga 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 |
|---|---|---|
| Balfour Formation arenaceous mudstone | Most of the Border region, from East London inland | The dominant rock. Intergranular flow in the sandier beds, but modest on its own. |
| Middleton Formation shaly sandstone | Exposed in the lower Buffalo River section | Similar to the Balfour, with fracture flow where structure is present. |
| Jurassic dolerite dykes and sills | Covering roughly a quarter of the surface geology across the district | The productive unit, and unusually extensive here. The baked contact zone beside an intrusion is where the good yields are. |
Send your street and what the water is for, and get an itemised quote for Komga.
Get a Komga Borehole QuoteWhat That Means for Your Borehole
- Measured yields across this district vary by a factor of twenty, from about 0.4 litres per second in the poorest zones to around 9 litres per second averaged across the best. Which of those you get is a siting outcome, not luck.
- The better ground is inland, not at the coast. Groundwater potential across the Buffalo catchment is highest in the north west toward Stutterheim and lowest in the south and south east, which is the East London coastal side.
- Lineament density peaks around dolerite margins, with a dominant west-north-west trend across the region. That is what a survey maps before drilling.
Where We Work Around Komga
- Komga town and the central approaches
- The Great Kei and Kei Mouth roads
- Morgan Bay and coastal approaches
- Dairy and stock farms around the town
- Timber and mixed agricultural properties
- Smallholdings on the outskirts
What to Watch For Here
Dairy demand is daily and non-negotiable, which makes storage and a tested sustainable rate more important than a high short-term yield.
Ground conditions change as you move toward the coast, with more sandy cover nearer the sea and more exposed rock inland.
What the Water Is Used For
- Crop, vineyard and orchard irrigation
- Stock watering across camps
- Packhouse, cellar and equipment washdown
- Frost protection and establishment watering
- Household and worker housing supply
Wellpoint or Borehole?
Only on the coastal strip and on the Nahoon and Buffalo river alluvium. Inland of the dune cordon it is not an option: Quaternary sediment accounts for about a third of one per cent of the Buffalo catchment's surface geology, so there is simply nothing to drive a point into.
Water Quality in Komga
Expect the regional Karoo pattern: variable salinity, routine hardness, and a fluoride risk where dolerite is close. Coastal sites face saline intrusion and are vulnerable to surface pollution because sand recharge is rapid. A full analysis is the sensible baseline rather than an assumption drawn from a neighbour's result.
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
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 Komga
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 | R500 - R1,150 /m | Mudstone drills reasonably, dolerite slowly. Depth to the target contact drives the total more than the rate does. |
| uPVC casing, installed, per metre | R400 - R750 /m | Through the weathered mudstone, and through dune sand and aeolianite on coastal sites. |
| Mobilisation and site establishment | R2,500 - R12,000 | 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 | R75,000 - R200,000+ | 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.
Komga Borehole FAQs
Can a dairy near Komga run on a borehole?
It can contribute substantially, and many do. Washdown and stock water are steady daily demands rather than seasonal peaks.
That profile suits a modest sustainable yield paired with real storage. Sizing on the first-hour figure is how dairies end up short mid-milking.
Is water quality an issue for stock here?
Usually it is fine, but dissolved salts and in places nitrate from fertilised pasture are worth checking.
Stock tolerate more than people do, but there are limits, and production drops before animals show obvious signs. The analysis is cheap by comparison.
What yield can I expect around Komga?
It ranges widely. Measured across this district, the best zones average around 9 litres per second and the poorest around 0.4, with most holes somewhere between.
The range is a siting outcome. Groundwater potential is highest inland toward the north west of the catchment and lowest on the coastal side.
Is Komga borehole water suitable for drinking?
It needs testing rather than assuming. The regional pattern is variable salinity, hardness, and fluoride where dolerite is nearby.
On a coastal site, add saline intrusion and surface-derived contamination to the list, because sandy ground recharges quickly and carries whatever is at surface with it.
NEED A BOREHOLE IN KOMGA?
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