How often do I need to pump my septic tank?

Elbert County Public Health (ECPH) requires that septic tanks be inspected every four years and pumped when scum and sludge accumulate to greater than 25% of the effective volume of the tank. Dosing tanks shall be inspected and pumped if sludge accumulation is observed. If your OWTS receives higher than average use as determined by your licensed cleaner, you may want to consider a more frequent pumping interval. All pumping and evaluation of septic tanks should be done. 

Licensed OWTS Pumpers 2021 - PDI (PDF)

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1. How do I get a permit to build a new, or repair an on-site wastewater treatment system (OWTS)?
2. Under what conditions must an on-site wastewater treatment system (OWTS) be designed by a Colorado Licensed Professional Engineer?
3. After I have had a NEW septic system installed what are the next steps?
4. As a Homeowner am I allowed to do my own installation?
5. How do I get a Use Permit?
6. I am selling my property and need to get my waste water system certified. What should I do?
7. What is the minimum lot size for an on-site wastewater treatment system (OWTS)?
8. How often do I need to pump my septic tank?
9. Will I be able to irrigate or have horses where my Soil Treatment Area (STA) is located?
10. Can I install a bathroom in a garage, barn, etc., and connect it to my existing on-site wastewater treatment system (OWTS)?
11. I am unsure where my on-site waste-water treatment system (OWTS) is located. Do you have records of my system?
12. I accidentally damaged some components of my septic system. Who should I call to inspect and repair the damage? Do I need a permit?