Leach Field Repair for Evanston Homes

How treated water leaves your system

Once wastewater leaves the tank it still needs treatment, and the drain field provides it. Gravel trenches or plastic chambers spread the liquid over a wide area so the soil underneath can filter it slowly. On Evanston properties the size of that area was set by a soil test when the system was designed.

How to tell a drain field is struggling

A failing field usually announces itself in the yard first: spongy ground, standing water that will not drain, or bright green stripes of grass above the trenches. Indoors, every drain slows down and toilets gurgle. If backups return within weeks of pumping the tank, the field itself is likely the problem.

What causes drain field failure

The most common cause is solids escaping the tank because it was not pumped often enough or an outlet baffle failed. Too much water, from leaks, heavy laundry days or roof runoff, can also saturate the field. Tree roots, crushed pipes from vehicles driving over the field, and a tilted distribution box that sends all the water to one trench are other frequent causes.

Repair options for a drain field

Depending on the cause, options include pumping and resting the field or repairing and leveling the distribution box. Damaged lines can be cleared or replaced, roots removed, an effluent filter added to protect the field, and surface water diverted away. When the soil itself is clogged beyond recovery, the field may need to be replaced, expanded or moved to a new area of the yard.

What goes into a drain field price

The main costs are labor and equipment time, materials such as pipe, gravel or chambers, any engineering or soil testing, and permit fees set by the Cook County health department. Engineered systems like mounds cost more than conventional trenches. Ask for a written quote that separates each part of the job.

Questions to ask about your drain field

Ask what testing they will do to confirm the field is the problem, whether a repair is possible before replacement, and whether a permit is required. For replacement, ask where the new field would go, how long the work takes and how the yard will be restored.

Keeping a drain field working for years

Protect the field by keeping heavy vehicles, sheds, decks and pools off of it and planting only grass above the trenches. Send roof drains and sump pump water elsewhere, fix running toilets quickly, and pump the tank on schedule so solids never reach the pipes. These habits add years to a field.

Helping a Evanston drain field recover

A struggling drain field near Evanston sometimes recovers if it gets a rest. Pump the tank, spread out water use and send roof water elsewhere. Keep vehicles off the area so the soil stays loose. If the ground is still wet after a few dry weeks, the field needs professional work.

Evanston soil and weather and your drain field

The USDA soil survey rates most mapped soils near Evanston as very limited for septic absorption fields. That makes careful design important, and replacement fields here often call for a mound or another engineered system. Evanston averages about 39 inches of precipitation a year, and May is usually the wettest month, when a weak field is most likely to surface water. About 2 months below freezing mean drain field work is usually scheduled outside the coldest part of the year.

What the soil around Evanston means for drain field repair

By drainage class, the USDA soil survey maps the land around Evanston as 26% moderately well drained, 24% well drained, 19% somewhat poorly drained, 18% poorly drained, 12% excessively drained. With 37% 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 Evanston

These are the septic companies in our directory closest to Evanston, with straight-line distance. Call any of them directly, or send one request and we will pass it to the best match.

• North Shore Sewerage-Drainage Co, Chicago, IL, 6.3 mi
• Folan Sewer & Water Inc, Park Ridge, IL, 6.6 mi
• Busse Green Technologies Inc, Oak Park, IL, 13.3 mi
• Mayrose Sanitary Service, Melrose Park, IL, 13.5 mi
• Tri-County Trenching & Septic, Bensenville, IL, 13.7 mi
• Gerardi Sewer & Water Co, Addison, IL, 19.6 mi

Drain Field Repair in nearby towns

We also cover drain field repair in these towns near Evanston:

• Skokie, 2.5 mi
• Wilmette, 2.8 mi
• Kenilworth, 3.1 mi
• Lincolnwood, 3.5 mi
• Winnetka, 4.8 mi
• Morton Grove, 4.9 mi

About Evanston, IL

Evanston is in Cook County, Illinois. About 75,070 people live there, across 7.8 square miles of land (about 9,650 per square mile).

Drain Field Repair questions in Evanston

How long does a drain field last?

A well-maintained drain field often lasts decades. Regular pumping, a working outlet filter and sensible water use are the biggest factors in how long it lasts.

Can I drive or build on my drain field?

No. Vehicles, sheds, pools and patios compact the soil and can crush pipes. Keep the area to grass only.

Why is the grass greener over my drain field?

Some extra green is normal, but bright green stripes with soggy ground or odors can mean wastewater is surfacing and should be checked.

Is SepticTank.com the company that repairs the field?

No. SepticTank.com connects you with an independent local septic company that serves Evanston. That company does the work and sets its own prices.