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Septic companies in Mandan, ND

Two septic companies on record in Mandan, Morton County. About 90% of mapped ground here is rated Very limited for septic drain fields, with slow water movement the limiting feature.

What the ground in Mandan is like

The USDA soil survey rates mapped ground in Mandan for septic drain-field suitability across roughly 14 square miles. About 90% of the rated ground is classed "Very limited", the survey records severe restrictions for a conventional drain field across most of that ground.

In Mandan, the leading limit is slow water movement: effluent does not drain through the soil fast enough, so a conventional field can back up or pond when the ground cannot keep pace. The survey flags that limit on about 63% of the rated ground here.

The limiting features the survey records most often here:

  • Slow water movement62.8%
  • Flooding38.3%
  • Depth to bedrock34.3%
  • Slope22.1%

This is survey data for mapped areas, not a substitute for a site evaluation on your own lot. Conditions on a single parcel can differ from the map.

USDA NRCS SSURGO, ENG Septic Tank Absorption Fields · 90.1% Very limited · Slow water movement · 75 map units · 13.52 sq mi · read 2026-08-30

The two companies

Nearby

All septic companies in North Dakota · Morton County