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Mound septic system being built up with sand and gravel on Colorado ground

Mound Septic System Service in Colorado

A mound system builds the drain field above natural grade when there is not enough usable soil below it. They are common on shallow bedrock, high groundwater, and tight clay sites across the Front Range and foothills.

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  • Pumping and dosing service for mound systems
  • Seepage and side slope diagnosis
  • Care guidance so the mound is not damaged

Mound system A mound system is an engineered drain field built in a raised bed of sand and gravel above the natural ground, dosed by a pump. It is used where the soil is shallow, slow, or too close to bedrock or groundwater.

A mound is a pressurized, mechanical system, so pump care and even dosing matter far more than on a gravity field.

  • Family Owned & Operated
  • 20+ Years of Septic Experience
  • Serving Denver & the Front Range
  • Licensed & Insured

Licensing, experience, and credentials

  • 20+ years in business

The situation

Why mounds exist and how they fail

When the separation between the bottom of a trench and bedrock or groundwater is too small, a county will not permit a conventional field. A mound solves that by placing sand fill and a pressurized distribution bed above grade, creating the treatment depth the site does not have naturally.

Mounds fail from overloading, from a dosing pump that stops dosing evenly, and from physical damage. Driving on a mound, planting trees in it, or letting downspouts run at its toe will all shorten its life. Seepage at the toe of the mound is the classic warning sign.

How the job runs

How we service a mound system

  1. Pump the tank and check the filter

    Solids reaching a pressurized bed plug orifices fast, so the tank comes first every time.

  2. Test the dose cycle

    Pump, floats, and timer are verified so every lateral gets its share of each dose.

  3. Walk the mound

    We look for seepage at the toe, erosion, settlement, and traffic damage on the slopes.

  4. Report and plan

    You get a plain description of what is working, what is marginal, and what needs attention this year.

Why us

Why call us for a mound

  • We understand pressurized distribution, not just gravity systems
  • Careful access so heavy equipment never crosses the mound
  • Honest read on seepage before it becomes a county issue
  • Serving foothills and rural Front Range properties

Dispatch

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What it costs

What drives mound system cost

Tank size and pumping volume, dosing pump and control parts, orifice cleaning or lateral repairs, and the extent of any fill, erosion, or seepage correction needed on the mound itself.

Questions

Mound system questions

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Family owned and operated, serving Denver and the Colorado Front Range for over 20 years.