Resources · Water

Acreage guides for towns in this county: High Prairie

How Deep Is the Water Table in Big Lakes County?

Buyers ask this before they bid, and drillers ask it before they quote. In Big Lakes County, nearby well records point to an average completed well depth of about 33 m, with static water levels often in the 2–5 m range. The predominant aquifer on file for this part of Alberta is the Surficial sand aquifers over Smoky Group shale.

Those numbers are county-scale context. They are not a promise for the quarter you are walking. These figures come from a Land Intelligence report run on a representative quarter in the county (NE 21-74-17-W5; 45 provincial well records within 5 km), not from your parcel.

Big Lakes County wraps the west end of Lesser Slave Lake. The bedrock is mostly shale that gives poor water, so wells depend on sand and gravel, and some farms haul water. Flooding from the Prairie rivers has repeatedly affected low farmland.

What a “water table” number actually is in Big Lakes County

Around High Prairie and the rest of Big Lakes County, people use “water table” for three different things:

• Static water level — the resting height of water in a completed well, measured from ground surface.
• Completion depth — how far the driller had to go to find a usable interval.
• Seasonal high water — how close water sits to the surface in a wet year, which matters for basements, septic, and dugouts.

A listing that says “good water at 80 feet” is usually mixing those ideas. Eighty feet of steel is a completion depth. The pump may still hang much shallower if the static level is high. Or the well may be deep and the static level may still sit far down the hole in late summer.

In Big Lakes County, treat 33 m as a planning band for completion, and 2–5 m as a planning band for static level. If a seller’s story sits far outside both bands, ask for the well ID and the last pump test.

What this means before you drill in Big Lakes County

Budget three line items on a Big Lakes County acreage, not one:

• Drilling and casing to a depth that can overshoot the neighbour’s well. In this county, planning around 33 m plus a contingency is more honest than copying the shallowest well on the road.
• A pump test, not a “we hit water” photo. Yield, drawdown, and recovery decide whether the well is a household supply.
• Water chemistry. Iron, hardness, sulphur, and bacteria are independent of depth. A cheap shallow well can still need treatment.

The Surficial sand aquifers over Smoky Group shale is common in this part of the province, but contacts shift. A buried-valley sand and a bedrock sandstone can sit under adjacent quarters. That is why a free parcel report that plots nearby well records is worth more than a single county average.

Flood and surface water are a separate file. In Big Lakes County, notable mapped or commonly discussed hazard areas include Lesser Slave Lake shoreline, East and West Prairie rivers, South Heart River. A wet corner of a field is not automatically a well. It may be a wetland, a flood fringe, or both.

Reading a well record in Big Lakes County

Alberta well reports usually list location, date, lithology, completion interval, static level, and a test rate. When you pull neighbours near High Prairie:

• Prefer wells within a kilometre, then compare geology, not just depth.
• Ignore abandoned holes unless you want to know where not to drill.
• Note the year. A 1978 farm well and a 2019 domestic well are not the same construction standard.
• If three nearby wells finish near 33 m and one is 15 m, ask why. The shallow one may be a sand point, a dugout well, or a different aquifer.

Permits, setbacks, and the rest of the Big Lakes County water file

A new well in Big Lakes County is only one approval. Earthworks for a pond, a dugout, or a crossing can trigger the Water Act. Mapped wetlands near High Prairie and across Big Lakes County are common enough that you should not assume a “just a slough” story. Keep well planning and wetland planning in two piles so a good aquifer does not talk you into filling a regulated wetland.

See this for your specific parcel

County averages help you decide whether a listing is in the right universe. They cannot replace a pin on the map.

Generate a free land report for a property in Big Lakes County →

The report is built to show water context, nearby records where available, and the other pillars — terrain, wetlands, climate, vegetation — on the same parcel.

Sampled data for Big Lakes County

From a Land Intelligence report run on a representative quarter in Township 74, Range 17, W5. These are measured or record-based values for that location, shown to put the county figures above in context. They are not your parcel.

Neighbouring counties: MD of Smoky River (55 km) · MD of Greenview (100 km) · Northern Sunrise County (102 km) · MD of Lesser Slave River (108 km) · Compare Big Lakes County with another county

Sampled from the live report pipeline at a representative quarter in Township 74, Range 17, W5 on 2026-10-08: well depth, hardiness zone, solar irradiance (45 well records within 5 km). Text reviewed 2026-10-09. Methodology.

Common questions

Is Big Lakes County a good place to drill a well?

Many rural parcels in Big Lakes County use private wells. Whether yours is “good” depends on the aquifer interval, chemistry, and a pump test — not the county average.

Can I use the neighbour’s well depth in Big Lakes County?

Only as a hint. Geology can change between quarters. Pull the well ID and lithology before you copy a depth into a budget.