Septic Tank Pumping & Service in Colorado
162 septic service companies across 89 cities — approximately 20% of Colorado homes use septic systems
Colorado's onsite wastewater treatment systems are regulated by the Colorado Department of Public Health and Environment (CDPHE) under Regulation 43, with local administration delegated to county health departments. The state's dramatic elevation changes — from the Eastern Plains at 3,500 feet to mountain communities above 9,000 feet — create vastly different soil and climate conditions for septic systems. High-altitude communities in Summit, Eagle, and Pitkin counties face shortened construction seasons, frozen ground for six or more months per year, and rocky mountain soils that often require engineered alternative systems.
Browse Cities in Colorado
All Service Areas in Colorado
117 ZIP codes across 89 cities (click to expand)
- Aspen — 81611
- Aurora — 80011
- Austin — 81410
- Bailey — 80421
- Bayfield — 81122
- Bennett — 80102
- Berthoud — 80513
- Black Hawk — 80422
- Boulder — 80302, 80303, 80305
- Breckenridge — 80424
- Buena Vista — 81211
- Calhan — 80808
- Cañon City — 81212
- Carbondale — 81623
- Cedaredge — 81413
- Clifton — 81520
- Colorado Springs — 80905, 80906, 80908, 80909, 80911, 80916, 80917, 80918, 80919, 80930, 80939
- Commerce City — 80022
- Cortez — 81321
- Craig — 81625
- Cripple Creek — 80813
- Del Norte — 81132
- Delta — 81416
- Denver — 80204, 80206, 80211, 80216, 80237
- Divide — 80814
- Durango — 81301, 81303
- Eagle — 81631
- Elizabeth — 80107
- Erie — 80516
- Estes Park — 80517
- Fairplay — 80440
- Florence — 81226
- Florissant — 80816
- Fort Collins — 80524, 80525
- Fort Lupton — 80621
- Fort Morgan — 80701
- Franktown — 80116
- Fraser — 80442
- Golden — 80402
- Granby — 80446
- Grand Junction — 81501, 81505, 81506
- Greeley — 80631, 80634
- Greenwood Village — 80112
- Gunnison — 81230
- Gypsum — 81637
- Hartsel — 80449
- Johnstown — 80534
- La Jara — 81140
- Lake George — 80827
- Lakewood — 80214
- Laporte — 80535
- Leadville — 80461
- Littleton — 80123, 80125, 80128
- Lone Tree — 80124
- Longmont — 80504
- Louviers — 80131
- Manitou Springs — 80829
- Manzanola — 81058
- Mead — 80542
- Merino — 80741
- Molina — 81646
- Monte Vista — 81144
- Montrose — 81401, 81403
- Monument — 80132
- Nederland — 80466
- Northglenn — 80233
- Pagosa Springs — 81147
- Parshall — 80468
- Penrose — 81240
- Peyton — 80831
- Pine — 80470
- Pueblo — 81001, 81006, 81008
- Pueblo West — 81007
- Rifle — 81650
- Salida — 81201
- Silver Cliff — 81252
- Silverthorne — 80498
- Springfield — 81073
- Sterling — 80751
- Swink — 81077
- Tabernash — 80478
- Watkins — 80137
- Wellington — 80549
- Westcliffe — 81252
- Westminster — 80030, 80031, 80221
- Weston — 81091
- Wheat Ridge — 80033
- Woodland Park — 80863
- Yuma — 80759
Septic System FAQ for Colorado
CDPHE recommends that Colorado homeowners pump their septic tanks every 3 to 5 years. In mountain communities like Breckenridge, Vail, and Estes Park, more frequent pumping (every 2 to 3 years) is advisable because cold temperatures significantly slow bacterial decomposition inside the tank. Homes along the Front Range in El Paso, Larimer, and Weld counties with standard systems can typically follow the 3- to 5-year schedule.
Septic pumping in Colorado typically costs between $350 and $600 for a standard residential tank. Prices are generally lowest along the Front Range corridor from Fort Collins to Colorado Springs, where more providers compete. Mountain communities and rural areas on the Western Slope — Grand Junction, Montrose, and Durango — often see higher prices of $500 to $800 due to limited providers and difficult terrain access.
Colorado does not have a statewide septic inspection requirement for home sales, but individual counties may. For instance, Park County requires an OWTS inspection and transfer permit when property ownership changes. Many mountain-area lenders and buyers in Summit, Routt, and Eagle counties routinely request inspections as a condition of sale. FHA and VA loans in Colorado generally require a satisfactory septic system evaluation.
Septic permits in Colorado are issued by your county health department under CDPHE Regulation 43. You need a site evaluation, soil analysis, and system design — often by a licensed professional engineer for alternative systems. In Jefferson County, for example, the Environmental Health Division handles permits, and fees range from $300 to $800 depending on system type. Mountain counties like San Miguel and Ouray may have additional requirements related to altitude, slope, and groundwater protection.
Colorado's most frequent septic issues include frozen pipes and tank components during harsh mountain winters, particularly in communities above 8,000 feet elevation. Expansive soils (bentonite clay) along the Front Range in Douglas and Jefferson counties can shift and crack septic tanks and distribution lines. Rocky, shallow soils in the mountains often make conventional drain fields impossible, requiring sand mound or drip irrigation systems. Spring snowmelt can also temporarily raise water tables and saturate drain fields in valley bottoms across mountain communities.