Colorado Sewer Regulations, Resources & FAQs

Costilla Sewer Regulations

Once you are ready to build or do Long Term RV camping, you must have and be hooked to an approved On-Site Wastewater Treatment System
Plumbing System installation must be completed along with a CO State Plumbing Permit # and final inspection certificate. Call 303-869-3469 to obtain plumbing permits and schedule inspections
A septic tank that is at least 1,250 gallons (and a leach field system) is required for your cabin or home - also must be assessed by the county. For flows that equal or exceed this amount, you should follow the design review facility approval process. For a standard septic tank, the amount you need is based on your number of bedrooms. This link will provide information on Colorado’s Waste Water Treatment Systems.
Composting or incinerating toilets are not allowed where the property can accommodate a conforming On-Site Wastewater Treatment System (OWTS)
Please see the list of systems contractors below to contact about soil evaluation, system design, and system installation

Soil Evaluation: Coleen Romero 719-588-2636

Brandt’s Septic: (719) 480-5301

18466 County Rd R, Manassa, CO 81141

Rocky Mountain Septic: (719) 589-4263

6349 County Rd 106.65, South Alamosa, CO 81101

Mountain Engineering and Testing: (719) 628-2069

2035 ½ Grande Ave, Monte Vista, CO 81144