We read it without touching it.
No drilling, no holes, no excavation, no chemicals. We read what's under your land without touching it, then you drill one precise hole in the right place, instead of a field of dry ones.
Siargao · On-island · Non-destructive · Independent
Know before you drill.
Pre-drill groundwater surveys on Siargao. Before you spend hundreds of thousands of pesos on a well, we read your land with US-developed seismoelectric technology and hand you a written report: estimated depth, indicative yield, and saltwater-intrusion risk. You drill one precise hole on measured data, not a field of dry ones. We are independent local operators who own no rig, so the read is straight.
A straight read you can bank on No drilling, no holes, no disturbing your land: we read what's under it without touching it. No one can promise water that is still underground. What we give you is the measured odds and an independent read to drill on, in writing.
Why Siargao Water
Five reasons it pays to survey first.
Back tomorrow, not on a flight.
We live and surf here. We're back tomorrow, not on a flight from Manila, and as people who care about this island, we want your water decision to be a responsible one, on a coast where freshwater is stressed.
We own no drilling rig.
We own no drilling rig and earn nothing from whether or where you drill. The only thing we sell is an honest read: the kind a bank, an owner, an LGU, or a buyer can trust.
Yield and salt, not just presence.
A US-developed seismoelectric method estimates an indicative yield and reads saltwater-intrusion risk, not just whether water is present. A house well and a resort or farm well are different animals, and on a coastal lot salt is the question.
A document you can file and defend.
You get a report you can hand to your driller, your architect, or the NWRB permit office: depth, indicative yield, saltwater-risk, and a recommended drilling location, with the limits stated honestly. A document you can file and defend.
The sharpshooter
One precise hole, not a field of dry ones.
The old way to find water is to drill and hope, then drill again somewhere else when the first hole comes up dry or salty. That's holes all over your land and money gone with each one. We do it the other way: we read what's under your land without drilling anything, no holes, no excavation, no chemicals, and point the rig at the one spot most likely to work. A sharpshooter, not a shotgun. And because we live and surf here, we'd rather you drill once, responsibly, on a coast where freshwater is already under pressure.
A survey improves the odds and saves the land from trial-and-error holes: it doesn't promise the hole. No survey can.
Siargao Island · 9.81°N 126.05°E
The economics
A well is a one-way door. You get one shot at the spot.
Drilling a well on Siargao is a major capital decision, and a dry, salty, or low-yield hole is money gone with no refund. A pre-drill survey is a small fraction of the drilling spend, and a fraction of one dry hole. It pays for itself the first time it stops a bad drill.
Exhibit A: Cost of being wrong FIG. 01 · PHP
| Scenario | Cost (PHP) | Outcome |
|---|---|---|
| Blind drill Success (you guessed right) | ₱150k–900k+one well · by size, depth + 20–40% island logistics | Water at usable depth, acceptable yield, no salt. |
| Blind drill Partial fail (low yield / shallow salt) | ₱150k–900k+the same well, then trucked water ~₱2,000–5,000/load, every dry season, for years | Degraded supply for the life of the property. |
| Blind drill Total fail (dry / unusable salt) | ₱300k–1.8M+two wells: you drill again elsewhere (≈ 2× one well) | Two holes; one site eventually works. |
| Recommended Pre-drill survey + targeted drill | A fraction of the drill+ one well, sited on data | One hole, sited on measured data; depth, indicative yield + salt risk known up front. |
Typical Siargao drilling ranges. Depth, access, and rig availability set the exact figure; your driller's quote is the real number. Either way, a well is one-shot: once it's drilled, the spend is gone whether or not it produces.
A survey is a small fraction of the drilling spend, and a fraction of one dry hole.
The work
What we actually do
We come to your land, take a small number of seismoelectric readings, and interpret them into a written report: the most likely depth to a water-bearing layer, an estimated thickness, an indicative yield range, and a saltwater-intrusion risk read at the time of survey, plus a recommended place to drill.
It's non-invasive: no drilling, no excavation, no chemicals. We arrive, set up, scan, and leave.
Non-invasive · no drilling · no chemicalsStep 01
We come to your land
An on-site visit to your specific spot. No remote guessing.
Step 02
A few seismoelectric readings
A small number of measurements, taken at the surface.
Step 03
We interpret the depth
Most-likely depth to water, thickness, and indicative yield.
Step 04
You get the written report
Depth, yield range, salt risk, and a recommended place to drill.
We work with
Anyone facing the drill decision on Siargao.
US-developed seismoelectric technology
A method published in peer-reviewed journals since the 1940s
Deployed on six continents
Non-invasive, no drilling, no holes
Independent, we own no rig
On-island, by two locals who surf here
Straight answers
Questions people ask before they drill.
How much does it cost to drill a deep well in the Philippines and on Siargao?
A deep well in the Philippines does not have one fixed price, and on Siargao island logistics push it higher. Real project examples range widely: a 91 meter borehole came to roughly PHP 1 million, an economic-zone well to about PHP 1.3 million, and a 200 meter project to around PHP 9 million, while smaller barangay wells can be much cheaper. Cost scales mainly with depth and the steel casing required, which makes depth uncertainty the biggest budget risk. A registered driller's quote is the real number. We read your ground first and estimate the depth, then point to one location, so you drill once and do not pay to drill twice.
How do I find water before drilling a well on Siargao?
Run a pre-drill seismoelectric survey, which reads the ground without putting a hole in it. We estimate aquifer depth, thickness, an indicative yield range, and saltwater-intrusion risk, so you drill one precise hole on measured data instead of a field of dry ones. On Siargao's karst limestone, where water moves through uneven fractures, the exact spot matters, which is why a survey of your specific parcel beats a guess. We read your land and put the likely depth, the yield range, and the salt risk in writing, so you drill once, on data.
Can you guarantee water?
No one can promise water that is still underground, and anyone who guarantees it is overpromising. What we give you is the measured odds and an independent read to drill on: a recommended location, the most likely depth, an indicative yield range, and a saltwater-risk read, all sized to cut the odds of a dry hole. The two ways a successful Siargao well still disappoints are low yield and creeping salt, and those are exactly what we read before you commit your money to the rig. We own no rig, so the read is straight: measured data going in, no sales agenda.
How hard is it to find water in Siargao?
Siargao is genuinely hard to read, which is why surveying first pays off. The island is mostly karst limestone, where water moves through uneven fractures and channels rather than evenly through the rock, so one spot can hit a good aquifer and a spot a few meters away can miss. Near the coast, a thin layer of fresh water floats on salt water, so a well that runs fine in the wet months can turn salty in the dry season. We take seismoelectric readings on your land and put the most likely depth, an indicative yield range, and saltwater risk in writing, so you drill once, on data, instead of guessing the spot.
Do I need an NWRB permit to drill a well on Siargao?
Yes. Under the Philippine Water Code (PD 1067), abstracting groundwater requires a Permit to Drill and a Water Permit from the National Water Resources Board, regardless of property type, except for certain purely domestic uses which are lighter on requirements. Your application must name a registered well driller, and since 26 September 2025 water-constrained areas may also require a monitoring well. Our written report strengthens the application: its data on depth and indicative yield gives the file independent, measured backing. This is general guidance pointing you to the NWRB, not legal advice.
Free Risk Snapshot
Thinking about a well? Start with a free Risk Snapshot.
Tell us about your site. We'll come back with a straight read on what to expect before you commit to a drill. No obligation, and nothing oversold.
A Risk Snapshot is an early-stage, no-cost read, not the full written survey report. The full report follows an on-site survey.