Landscaping

Turf to Desert: What Comes Out and What It Weighs

Everyone books a 20 yard for a front yard conversion. Almost everyone needs a 10, part-filled — because dirt is the heaviest thing most homeowners ever throw away.

Why so many yards are being converted

A great deal of Maricopa was built through the 2000s with turf front yards, because that is what the production builders installed at the time. Two decades on, a lot of those yards are being taken out.

The reasons are practical rather than ideological: turf in this climate needs constant water, it needs mowing through a summer where nobody wants to be outside, and the water bill is real. Desert planting over decomposed granite needs a fraction of the input.

Whatever the motivation, the job is the same, and it produces one of the heaviest waste streams a homeowner will ever generate.

What actually comes out

• Sod and the soil attached to it — the bulk of the weight
• Old irrigation — poly tubing, emitters, valve boxes, sometimes a whole controller
• Turf edging and header board
• Old decorative rock that is being replaced or relocated
• Concrete edging, mow strips and small slabs
• Tree and shrub removals, with root plates and the soil that comes with them
• Weed barrier fabric, usually degraded and full of soil
• Caliche, once anyone starts digging holes for new planting

Two very different streams: heavy mineral material, and bulky light green waste. They want different handling.

Dirt is the heaviest thing you will ever throw away

The number that governs the whole job.

Run that arithmetic against a container's allowance and the answer arrives quickly. A 10 yard carries roughly one to two tons. That is a small pile of soil — nothing like ten cubic yards of it.

This is why we say, more often than any other sentence in this business: dirt goes in a small container, part-filled. A 30 yard of soil cannot be lifted, cannot be hauled legally, and would sit in your driveway while everybody worked out what to do about it.

The failure mode is completely predictable. Somebody looks at a front yard's worth of sod stacked up, correctly judges it to be a large pile, books a 20 yard, and discovers the weight allowance was gone at the one-third mark.

Meeting caliche

Anybody who has planted a tree in this valley has met it.

Caliche is a hardpan of calcium carbonate that sits under a shallow layer of soil across most of this area. It cements the soil particles together and behaves far more like weak concrete than like earth. It blunts tools, it stops augers, and it is why a "quick" planting hole becomes an afternoon with a breaker bar.

Three consequences for a landscape job:

• It is heavy. Broken-out caliche is mineral rubble, priced and weighed like masonry rather than like soil.
• It generates more spoil than expected, because planting holes in caliche have to be dug substantially oversized for anything to survive in them.
• It does not drain. A hole in caliche holds water like a bucket, which is why plants die in them, and it is worth knowing before you fill a container with the evidence.

The tenth-acre question

The regulatory point that catches larger conversions.

Pinal County requires a site permit application, a site plan and a site dust control plan for development activity disturbing 0.1 acre or more — about 4,356 square feet.

A front yard alone will usually sit under that. A front and back yard taken down to bare dirt on a larger lot can cross it, and on acreage out toward Hidden Valley or Thunderbird Farms almost any serious landscape project does.

It matters more here than the acreage alone suggests, because Maricopa sits in the West Pinal PM10 nonattainment area, which the EPA escalated to Serious in 2020. A yard stripped to bare soil and left through a monsoon weekend is exactly the situation those rules exist for. Full detail on the dust rules here.

Sizing a conversion

Notice the pattern: everything mineral sizes down, everything green sizes up. That is the whole guide in one line.

Hardscape and the second container

On any conversion generating both streams, two containers is usually cheaper than one, which sounds wrong until you look at where the money goes.

Clean concrete, block, pavers and rock have their own disposal route and it costs less per ton than mixed waste. The moment you throw a fence panel and a pile of shrub trimmings on top of clean concrete, the whole container becomes mixed debris and is priced as such.

So: a 10 yard for concrete, rock, soil and caliche, and a 20 yard for the green waste and general material. Tell us that is the plan and we will place both.

Practical sequencing

• Kill and remove the irrigation first, or you will cut a line under pressure at the worst moment. Cap it properly rather than crimping it.
• Shake the soil off root plates and sod where you reasonably can. Soil you leave on site is soil you are not paying to haul.
• Cut green waste down as you go, not at the end. It halves the container you need and it is far easier before the pile builds.
• Keep the mineral material separate from the first minute. Separating it later never happens.
• Do not strip the whole property at once if you cannot re-cover it quickly. Bare soil plus a monsoon outflow is a dust problem and potentially a compliance one.
• Work early in summer. This is the hottest kind of work there is here, and the container will still be there tomorrow.
• Tell us it is a landscape job when you book. It changes the size we recommend more than almost any other detail.