New Mexico Administrative Code
Title 20 - ENVIRONMENTAL PROTECTION
Chapter 7 - WASTEWATER AND WATER SUPPLY FACILITIES
Part 3 - LIQUID WASTE DISPOSAL AND TREATMENT
Section 20.7.3.811 - SPLIT FLOW SYSTEMS

Universal Citation: 20 NM Admin Code 20.7.3.811

Current through Register Vol. 35, No. 18, September 24, 2024

Split flow systems may be installed for the purpose of reduction of total nitrogen discharges in lieu of installation of non-discharging or tertiary treatment systems.

A. Based on the assumption that toilet waste contains 80% of the total nitrogen in domestic liquid waste and that the quantity of liquid waste from toilets is 25% of the total domestic waste stream, the following formula shall be used to calculate the minimum lot size allowed for permitting of a split flow system: minimum lot size (in acres) = 0.0003 x design flow.

B. The disposal system for non-toilet waste shall be based on the assumption that non-toilet waste comprises 75% of the design flow and therefore may be reduced to 75% of the minimum required absorption area in 20.7.3.703 NMAC.

C. The toilet waste holding tank shall have a minimum capacity of 1000 gallons and shall meet all requirements of holding tanks described in 20.7.3.808 NMAC, except for Subsections A, B, C, D, E and H.

D. Effluent from the waste holding tank may be discharged to an ET bed constructed in accordance with 20.7.3.805 NMAC and sized at 25% of design flow. An effluent filter is required on the waste holding tank.

Disclaimer: These regulations may not be the most recent version. New Mexico may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.