✅ Colorado Septic System Requirements — Complete Front Range & Mountain Guide
If you’re building or buying rural property in Colorado, you may need a septic system — and every county has its own soil conditions, local rules, and approval steps. Whether you’re building a mountain cabin, a rural ranch, or a new home on the plains, we make it easy to test, design, permit, and install your system the right way.
Below you’ll find a simple guide to what you can expect in each region — plus how our expert team keeps your project smooth, compliant, and on time.
📍 Front Range Counties
Adams County Septic Systems
Eastern Adams County communities like Bennett, Strasburg, and Watkins often need septic systems. Tri-County Health Department requires percolation testing, a detailed site evaluation, and a certified design to meet Colorado Regulation 43.
We handle everything — accurate soil tests, engineered system designs, and all the paperwork so you pass inspection the first time.
Arapahoe County Septic Systems
In rural Arapahoe County, places like Byers and Deer Trail rely on septic for new builds and subdivisions. The same Tri-County Health rules apply: soil tests, perc test, and engineered design.
We deliver quick turnaround for soil reports and stamped designs to keep your build or land sale moving forward.
Boulder County Septic Systems
Boulder County’s mountain and foothill properties often require custom septic systems that protect sensitive watershed areas. Local rules are stricter than the state minimum, and rocky slopes can be tricky.
We specialize in mountain sites, providing engineered designs and soil testing that meet Boulder’s high standards.
Broomfield County Septic Systems
Most of Broomfield is on city sewer, but older rural homes may still run on septic. Any upgrades or replacements must meet current state standards.
We inspect, test, and upgrade these rare systems so you stay compliant.
Denver County Septic Systems
Denver is almost entirely on municipal sewer. If you find an old septic system in an unincorporated pocket, we can help verify its condition and handle any required testing or design work.
Douglas County Septic Systems
Areas like Sedalia, Larkspur, and rural Castle Rock need onsite wastewater systems for homes on acreage. Douglas County requires site evaluation, soil testing, and an engineered design.
We handle it all, so your build stays on track.
El Paso County Septic Systems
Properties outside Colorado Springs — Falcon, Peyton, Black Forest — rely on septic systems. El Paso County Public Health requires a perc test, soil report, and approved design.
We provide complete services, from site eval to final inspection.
Jefferson County Septic Systems
Mountain towns like Evergreen and Conifer often need specialized septic systems for rocky, sloped sites. Jefferson County requires detailed soil testing and an engineered plan.
We deliver practical, code-compliant designs that pass inspection and protect your investment.
Larimer County Septic Systems
Rural areas near Fort Collins and Loveland rely on private septic systems. Larimer County requires site-specific soil testing and an engineered design for each system.
We make it easy, with local experience and quick permitting support.
Weld County Septic Systems
Ranch properties and rural homes around Greeley, Windsor, and Ault often use septic. Weld County follows Colorado Reg. 43 with its own requirements for larger lots and farms.
We handle soil tests, designs, and inspections, helping landowners avoid costly delays.
📍 Eastern Plains Counties
Morgan County Septic Systems
Farm homes near Fort Morgan and Brush rely on septic. The county requires soil testing and a stamped engineered design.
We do both, with clear communication so your new system is done right.
Logan County Septic Systems
Sterling and the surrounding farmland often need new septic systems. Logan County follows Colorado’s OWTS rules.
We provide fast soil testing and reliable designs, so your rural build stays compliant.
Kit Carson County Septic Systems
Properties around Burlington depend on septic. Kit Carson County enforces state standards plus local steps.
We cover the entire process, from perc test to final inspection.
Yuma, Sedgwick & Phillips Counties
Eastern Plains farmsteads need soil evaluations and engineered designs that match local conditions.
We offer quick turnaround to keep your project moving.
Washington & Lincoln Counties
Remote ranch homes often need large, well-planned septic systems. The soil can vary from sandy to clay-heavy.
We test, design, and help you meet local code, so your rural homestead is ready to go.
📍 Mountain Counties
Park County Septic Systems
Mountain cabins and lots around Fairplay need a detailed soil report and engineered system. Park County terrain can be rocky with slopes.
We know how to handle mountain sites, saving you costly redesigns.
Clear Creek County Septic Systems
Old mining properties and mountain cabins often need replacement systems. Rocky, shallow soils are common.
We design compact systems that work for tight mountain lots.
Gilpin County Septic Systems
Homes in Black Hawk and Central City need modern septic systems that work with historic properties and tricky slopes.
We handle the soil study, design, and permits for worry-free upgrades.
Summit County Septic Systems
Breckenridge, Silverthorne, and remote cabins often need advanced septic to protect local streams and wells.
We handle sensitive sites with engineered designs and thorough soil testing.
Grand County Septic Systems
Granby, Grand Lake, and Fraser mountain homes rely on septic. Local rules protect water sources.
We design reliable systems, even for steep or wooded lots.
Lake County Septic Systems
Leadville-area homes often have shallow soils and high water tables.
We design practical systems that fit your site and meet all permit rules.
Chaffee County Septic Systems
Salida and Buena Vista homes use septic for mountain living. The county requires site evals and engineered plans.
We provide both, with quick local turnaround.
Gunnison County Septic Systems
Remote cabins and ski properties often need special systems to handle snow and rock.
We handle mountain perc tests and engineered plans for reliable year-round performance.
Routt County Septic Systems
Steamboat Springs-area ranches and cabins often rely on OWTS. Slopes and cold weather demand a careful design.
We test soils and engineer durable systems that last.
Eagle County Septic Systems
Outside Vail and Edwards, rural properties rely on septic. The county protects streams and rivers with strict watershed rules.
We deliver designs that pass review and keep your build on track.
Pitkin County Septic Systems
Aspen-area properties need high-end engineered septic systems that work on tight mountain sites.
We design smart systems that protect your investment and meet local codes.
✔️ Start Your Colorado Septic Project Today
✅ Detailed soil testing & site evaluations
✅ Licensed engineered septic designs
✅ Local permit compliance
✅ Smooth coordination with county inspectors
✅ Mountain and plains expertise
✅ Fast turnaround, clear updates, stress-free service
Your land deserves a septic system that works right the first time.
Contact us today to schedule your soil test and septic design — we’ll handle the rest so you can build with confidence.