New Septic Systems for Longmont Properties
Whether you are building a new home in Longmont 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 Longmont and Mead, Frederick, Firestone will explain the process from site evaluation to final inspection.
The installation process step by step
It starts with testing the soil to see how well it absorbs water. A designer or engineer then sizes the tank and dispersal area for the number of bedrooms. After the permit is approved, the crew excavates, sets the tank, installs the pipes and field, and schedules an inspection before backfilling.
Conventional and alternative systems
A conventional system is the simplest and usually the least expensive to maintain. Alternative systems add pumps, controls or treatment steps so they can work in difficult soil. Around Longmont, the soil on your specific lot is what decides which category you fall into.
Working with local regulators
Septic rules exist to protect groundwater and neighbors' wells. Before installation, plans are reviewed for setbacks from wells, property lines and water. Inspectors typically check the work before it is covered. Ask your installer what approvals are needed in Longmont and how long review usually takes.
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 Longmont and Mead, Frederick, Firestone, clear written quotes and a plan for permits and inspections. A good installer explains tradeoffs between system types rather than pushing one option.
Scheduling a septic installation
Start early if you are building or replacing a failing system. Book the soil evaluation first, since everything else depends on it. Ask your installer how long permits are currently taking with the Boulder County health department, and plan for weather, especially if the work falls in winter or a rainy season.
What experienced installers watch for
Good installers in Longmont pay attention to setbacks from wells and property lines, the slope of the lot, and where roof and yard water drains. They also plan how equipment will reach the site without compacting the future drain field. They also confirm the design matches the permit before the first shovel goes in. Small details at this stage decide whether the system lasts decades or needs early repair.
Planning a new system near Longmont
A new septic system near Longmont starts with a site visit and a soil evaluation. Those results decide the system type, the tank size and where the drain field can go. Boulder County reviews the design before work begins and inspects it before it is covered. Planning early keeps the project from holding up a closing or a build.
What Longmont's soil means for a new system
The USDA soil survey rates most mapped soils near Longmont 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. Longmont gets about 18 inches of precipitation a year, so water table limits are less common, though your soil test still decides the design. About 3 months below freezing mean pipes and components must sit deep enough or be insulated, and installation is usually easiest outside winter.
Local conditions in Longmont that affect septic installation
Among the mapped soils within about two miles of central Longmont, the USDA soil survey rates 61% as very limited for septic absorption fields, 20% as somewhat limited and 19% 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.
Longmont averages about 18 inches of precipitation a year, and May is usually the wettest month. Average temperatures stay below freezing for about 3 months a year, with December averaging 30°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 Longmont means for septic installation
By drainage class, the USDA soil survey maps the land around Longmont as 74% well drained, 16% poorly drained, 6% somewhat excessively drained, 4% moderately well drained. Most of the soil here drains reasonably well, so a conventional trench field is often possible where the lot allows, but the soil test still decides.
Source: USDA NRCS Soil Survey (SSURGO), Soil Data Access
Septic companies near Longmont
These are the septic companies in our directory closest to Longmont, with straight-line distance. Call any of them directly, or send one request and we will pass it to the best match.
- Sullivan Septic, Mead, CO, 7.1 mi
- Gapter Septic Systems & Excavating, Erie, CO, 11.4 mi
- Boulder Septic LLC, Boulder, CO, 14.0 mi
- B & J Septic Service, Loveland, CO, 15.8 mi
- Front Range Grease Removal Inc, Fort Lupton, CO, 16.5 mi
- Acme Septic Inc, Boulder, CO, 22.1 mi
Septic Installation in nearby towns
We also cover septic installation in these towns near Longmont:
About Longmont, CO
Longmont is in Boulder County, Colorado. About 98,630 people live there, across 29.0 square miles of land (about 3,397 per square mile).
Septic Installation questions in Longmont
- How long does septic installation take?
- Installation itself often takes a few days to two weeks. Soil testing, design and permit review can add several weeks, so plan ahead.
- 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.
- Do I need a soil test for a new septic system?
- Yes, in nearly all cases. The soil evaluation decides what type of system and how large a field your lot can support.
- Is SepticTank.com the installer?
- No. SepticTank.com connects you with an independent local septic company that serves Longmont. That company designs, installs and prices the system.