Landscape Drainage Solutions in Menifee, CA

Drainage first

The Water Has to Go Somewhere

Heavy Clay, in the Water District's Own Words

Water moves through clay slowly, and once it is soaked it stops taking any more. That is why the same few spots in a yard fail over and over.

• Puddles still sitting there a day after the rain stopped.
• Grass that yellows in the low spots while the high spots go dry.
• Water tracking along the foundation, because that is the easiest path it can find.

The whole year only brings about 11.65 inches of rain at the nearest long record station. Clay cannot take a year of water in a week. Fixing it belongs to one licensed contractor, with the rest of the yard.

Where Menifee's Water Actually Comes From

The city names its own flood sources. "Most flooding in Menifee is the result of flows along the San Jacinto River, Salt Creek, and several smaller drainages", and the named ones are Ethanac Wash, Paloma Wash, the creek through Quail Valley and Warm Springs Creek.

• The Safety Element names three liquefaction areas: the Salt Creek and Warm Springs Creek floodplains, and parts of the Paloma Wash Valley.
• The city plans around "compressible, collapsible, expansive or corrosive soils", which means the ground moves.

That is not a reason to panic. It is a reason to know which way your ground falls before anybody digs.

Different Ground in Different Pockets

Where you are in the valley changes the fix. These are sourced, not guesses.

• Quail Valley. The State Water Board lists the causes of failure there as "(1) high groundwater; (2) poor soil conditions; (3) shallow impermeable strata; and (4) poor maintenance of septic systems."
• Winchester and French Valley. County plans describe "ancient soils with an impermeable layer such as hardpan, claypan, or volcanic basalt".
• Perris corridor. "Level to moderately steep soils that have a surface layer of sandy loam often with a hardpan", with lenses of clay through them.

Hardpan is the one people miss. Dig a hole, fill it with water, come back later and it is still full. No amount of good soil on top of it will drain, which is why most of these yards end up as a landscape renovation.

Drainage Goes First. Before Turf or Sod. Every Time.

There is no version of this where you lay a lawn over standing water and it works out.

• Artificial turf sits on a base. If the water under that base has nowhere to go, it stays there and the turf stays wet.
• Sod roots rot in ground that stays soaked, and the dead patches come back in the same spots.
• Drainage put in later cuts the sprinkler and drip lines, so the wrong order means doing the same work twice.

"One Contractor. One Plan. One Beautiful Finished Yard." The grading, the drains, the irrigation and the planting are one job with one licensed contractor, on homes and on commercial properties.

Why does water sit in my yard for days?

Almost always the soil. Eastern Municipal Water District builds its watering schedule around "heavy clay soils common to most of the Inland valleys of Riverside County". Clay takes water slowly and stops taking it at all once it is soaked.

Is my part of Menifee a flood area?

Parts of it are. The city says "Most flooding in Menifee is the result of flows along the San Jacinto River, Salt Creek, and several smaller drainages", and names Ethanac Wash, Paloma Wash, the creek through Quail Valley and Warm Springs Creek.

What makes Quail Valley harder than the rest of Menifee?

The State Water Board lists four causes of failure there: high groundwater, poor soil conditions, shallow impermeable strata and poor maintenance of septic systems. Shallow impermeable strata means a hard layer close to the surface. Most homes there are on septic.

My yard looks sandy, so why does it still flood?

That is the Perris and Winchester story. Perris corridor soils are "level to moderately steep soils that have a surface layer of sandy loam often with a hardpan". Winchester ground is "ancient soils with an impermeable layer such as hardpan, claypan, or volcanic basalt". The top few inches drain, then the water stops dead.

Should I fix drainage before putting in turf or sod?

Yes, every time. Turf sits on a base, and water trapped under that base has nowhere to go. Sod roots rot in soaked ground and the same dead patches return.

Do you do drainage as part of a whole yard?

Yes. That is the point of one contractor. The grading, the drains, the irrigation, the turf or sod and the planting get laid out together before anything is dug, on homes and on commercial properties.