Septic System Installation in Oakdale, MN
Whether you are building a new home in Oakdale or replacing a system that has reached the end of its life, septic installation is a project that starts with the soil. The right system depends on your lot, your soil and the size of your household.
Request a call and a local septic company that installs systems in Oakdale and North St. Paul, Lake Elmo, Maplewood will explain the process from site evaluation to final inspection.
The steps of a new septic installation
Expect five stages: site and soil evaluation, system design, permit approval, construction, and inspection before the trenches are covered. Weather and permit review times affect the schedule more than the digging itself, which often takes only a few days once everything is approved.
Septic system types and when they fit
A conventional gravity system works where soil drains well and there is room for a field. Where soil is shallow, wet or slow, designers turn to pressure distribution, mound systems, chamber systems, drip dispersal or aerobic treatment units. The soil test, not preference, usually decides which one a lot needs.
The permit process for a new system
Installing or replacing a septic system almost always needs approval from the Washington County health department or the state agency that oversees septic systems. The usual steps are a soil evaluation, a stamped design, plan review and one or more inspections during construction. Starting without a permit can mean digging it all up again.
What you are paying for in a new system
A new system quote covers the soil evaluation and design, permits, the tank, pipe and field materials, excavation and backfill, and the final inspection. Ask whether site restoration such as grading and seeding is included, and whether the quote assumes a conventional system or an engineered one.
The first years with a new system
Keep the design drawing and the final inspection report somewhere safe. Pump on the schedule your installer recommends, use water steadily rather than all at once, and keep vehicles and new structures off the tank and field. Let grass establish over the field before heavy use of the yard.
Choosing an installation company
Look for experience with the soils and systems common around Oakdale and North St. Paul, Lake Elmo, Maplewood, clear written quotes and a plan for permits and inspections. A good installer explains tradeoffs between system types rather than pushing one option.
How long the whole project takes
The digging and installation often take days, but the full project in Oakdale can take several weeks once testing, design and permit review are included. Ask your installer for a realistic timeline for your county and what could change it, such as wet weather or a busy review office.
Mistakes to avoid on a Oakdale installation
The most expensive mistakes happen before the digging starts. Skipping the soil evaluation, choosing a system on price alone, or placing the drain field where future driveways, pools or additions will go all lead to trouble later. Undersizing the tank for the number of bedrooms is another common one. Ask your Oakdale installer to walk you through the site plan and explain why each part sits where it does.
New septic systems in Washington County
New and replacement systems in Washington County go through the Washington County health department, which reviews designs and inspects the work. Soil conditions change from one part of the county to another, so a design that suits a lot in Oakdale may differ from one in North St. Paul, Lake Elmo, Maplewood. A local installer knows those differences.
What Oakdale's soil means for a new system
The USDA soil survey rates most mapped soils near Oakdale as very limited for septic absorption fields. New systems here often need a mound, pressure distribution or another engineered design, which your soil test will confirm. Oakdale averages about 33 inches of precipitation a year, which your designer will factor into where the system goes. About 4 months below freezing mean pipes and components must sit deep enough or be insulated, and installation is usually easiest outside winter.
Local conditions in Oakdale that affect septic installation
Among the mapped soils within about two miles of central Oakdale, the USDA soil survey rates 100% as very limited for septic absorption fields, 0% as somewhat limited and 0% as not limited. The most common drainage class is well drained. Soils like these often call for careful system design, such as a larger drain field, a mound or another engineered system, and a site evaluation before any new installation or replacement.
Oakdale averages about 33 inches of precipitation a year, and June is usually the wettest month. Average temperatures stay below freezing for about 4 months a year, with January averaging 13°F, so tank lids and shallow lines benefit from a layer of snow or mulch rather than being cleared bare.
Sources: USDA NRCS Soil Survey (SSURGO), Soil Data Access; NASA POWER long-term climatology. Soil ratings describe mapped soil types near the city center and do not replace a site evaluation of your property.
What the soil around Oakdale means for septic installation
By drainage class, the USDA soil survey maps the land around Oakdale as 35% well drained, 14% very poorly drained, 14% excessively drained, 12% somewhat poorly drained, 10% moderately well drained, 8% somewhat excessively drained, 7% poorly drained. With 33% of the soil poorly drained, a new or replacement field here is often larger or raised, and a soil test comes before any design.
Source: USDA NRCS Soil Survey (SSURGO), Soil Data Access
Septic companies near Oakdale
These are the septic companies in our directory closest to Oakdale, with straight-line distance. Call any of them directly, or send one request and we will pass it to the best match.
- Pinky's Environmental & Sewer, Afton, MN, 8.6 mi
- Darrell's Septic Service Inc, River Falls, WI, 13.7 mi
- Parnell Septic Service, Somerset, WI, 15.5 mi
- Wang Excavating Inc, River Falls, WI, 20.2 mi
- Schlomka Services Inc, Hastings, MN, 20.5 mi
- Raska Sewer Service, Osceola, WI, 20.7 mi
Septic Installation in nearby towns
We also cover septic installation in these towns near Oakdale:
- North St. Paul, 2.6 mi
- Lake Elmo, 2.6 mi
- Maplewood, 4 mi
- Mahtomedi, 4.9 mi
- White Bear Lake, 5.9 mi
- Woodbury, 5.9 mi
About Oakdale, MN
Oakdale is in Washington County, Minnesota. About 28,226 people live there, across 11.0 square miles of land (about 2,575 per square mile).
Septic Installation questions in Oakdale
- Can I install a septic system myself?
- Most areas require licensed designers or installers and inspections. Check with the Washington County health department before planning any work yourself.
- What is a mound system?
- A mound system raises the drain field above the natural soil using sand and fill. It is used where the soil is too shallow, too wet or too slow draining for a conventional field.
- Can a replacement system go in the same place?
- Sometimes. It depends on the condition of the soil in the old field and local rules. Many replacements use a new area of the yard.
- Is SepticTank.com the installer?
- No. SepticTank.com connects you with an independent local septic company that serves Oakdale. That company designs, installs and prices the system.