Natural ponds and water features on Uxbridge country properties

A pond can look like it has always been there on a country property. Getting that effect takes more planning than people expect, especially around Uxbridge, where the land, the water table and the rules all have a say.

The Oak Ridges Moraine

Much of Uxbridge sits on the Oak Ridges Moraine. The soils are often sandy and gravelly, which drains well and is one reason the area matters so much for groundwater. It also means a pond dug straight into the ground will usually not hold water on its own.

Parts of the township are also regulated by a conservation authority, particularly near creeks, wetlands and valley features. Before we design anything, we check whether the property falls in a regulated area and what approvals might apply. It is much easier to place a pond in the right spot from the start than to move it after a site visit from the authority.

Wells and septic come first

Rural properties usually rely on a well and a septic system, and a pond needs to respect both. We locate the well, the septic tank and the bed before sketching anything. Keeping clear separation protects your drinking water and keeps a septic system from affecting pond water quality.

It also affects construction. Heavy equipment should stay off the septic bed, so access routes get planned around it.

Liner or clay

There are two common ways to make a pond hold water.

• Flexible liner. A rubber liner under a protective underlay, covered with soil and stone. Reliable, predictable, and the right choice for most residential ponds on sandy moraine soil.
• Compacted clay. Works where there is suitable clay on site or it can be brought in. It can look very natural, but it needs the right material and careful compaction, and it is less forgiving.

For most Uxbridge properties we recommend a liner. The soil simply does not cooperate otherwise.

Designing for wildlife

A natural pond will attract frogs, birds, dragonflies and the occasional heron. If you want that, design for it:

• A shallow shelf around part of the edge for planting and for animals to get in and out.
• Native plants in and around the water.
• Gentle slopes instead of steep sides.
• A deeper zone so the pond does not freeze solid.

If you want fish, the deeper zone matters even more, and so does circulation.

Moving water

Even a natural pond benefits from some movement. A small stream or waterfall fed by a recirculating pump keeps water oxygenated and discourages mosquitoes. On a larger property the stream can become the feature itself, running down a slope toward the pond.

Power is often the hidden cost here. Ponds are rarely close to the house on a country lot, so we plan the electrical run early and trench once.

Winter

Ponds with fish should not be drained. The goal is a small opening in the ice so gases can escape, usually with a floating de-icer or an aerator in shallow water. Waterfalls and streams are typically shut down for winter, since running water over ice can build up and push water past the liner edge.

Purely ornamental features can be drained and covered, the same way we close a fountain for winter.

The long view

A good pond gets better with time as planting fills in. The first season looks new. By the third it looks like it belongs.

See how we design water features, or what else we build on properties around Uxbridge.