Can I build something like a pool or shed on top of my septic system?
Can I build something like a pool or shed on top of my septic system?
No structure may be built on top of any portion of a septic system. A setback of 10 feet is required between any structure and the septic tank, and 20 feet between any structure and the soil absorption system. In addition, no structure may be built within the space reserved for absorption system replacement, or within the 20 foot setback distance of that area, in accordance with 22 GAR §12105(d).
There are numerous reasons for this, based on both engineering and common sense. The regulations require that the septic tank and leaching field must remain accessible for maintenance and repair, as necessary, and that no structures be built which would prevent the use of the 100% reserve absorption system in the event of a failure. Other, more technical reasons include precautions to prevent damage to your home or dangers to life and health. Building too close to a leaching field may cause your foundation to settle and damage your home. Building too close to or on top of a leaching field or septic tank is also likely to result in the introduction of odors and gases to indoor spaces, which can be both hazardous to life and health, and create a risk of explosion or fire.
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UPDATED AS OF JULY 18, 2024: Requirements for Septic Systems
Please be advised that the Toilet Facilities and Sewage Disposal Chapter codified in 10 GCA Chapter 48 has been amended through the enactment of Guam Public Law 37-105.
On July 18, 2024, Bill 175-37(COR) as substituted and amended on the floor was signed into law as Guam Public Law 37-105 and is effective upon enactment. As a result of this enactment, certain conditional environmental clearances issued by the Guam Environmental Protection Agency for building permits issued by the Department of Public Works have changed and will now be performed in accordance to this new law and its amended provisions.
Permitting Tips Presentations: Contractors, Home Builders and Property Buyers
In case you missed our Construction & Industry Forum on March 29, 2023, you can click on the links below to access presentations about Guam EPA’s construction permitting process:
In Guam, the use of onsite wastewater disposal systems commonly referred to as ”septic systems,” is regulated through a number of laws and regulations. These laws and regulations cover specific requirements for the permitting, design and construction of septic systems in Guam. Guam EPA has developed this FAQ to help you understand the application of various requirements to the design, permitting, and construction of a septic system for a single family dwelling.
Guam Business License & Permit Center Window Hours
Guam Business License and Permit Center Agency Window Hours: