Liquid Waste (Septic Tank) Program
Our mission is to protect public health, safety and water quality by ensuring that on-site disposal of household sewage is done safely.
Accidental deaths related to cesspools; see Cesspools Are Dangerous and Illegal.
The NMED is planning to file a petition for proposed amendments with the Environmental Improvement Board on February 20, 2012. Please provide written comments on this draft by Friday, February 10, 2012 by email to Brian Schall or by mail at NMED, 5500 San Antonio Drive NE, Albuquerque, NM 87109, attn: Brian Schall.
A presentation on a recent study of Groundwater Quality and Public Health is now available for download.
The EIB has issued its Ammended Statement of Reasons for its decision on changes to sections of the Liquid Waste Disposal and Treatment Fees, 20.7.11 NMAC, EIB Petition 11-08 (R).
The EIB has issued its Statement of Reasons for its decision on changes to Section 904 of the Liquid Waste Disposal and Treatment Regulations, 20.7.3 NMAC, EIB Petition 11-03 (R).
Update on Petition EIB 11-10 (R), Petition EIB 11-11 (R), and Petition EIB 11-12 (R).
The public hearing on these petitions has been postponed by the EIB until the Spring of 2012. In the meantime, NMED will hold a series of public meetings around the state to obtain stakeholder input on what rule changes should be made. Click on the link for a copy of the slideshow presentation to be given at the public meerings.
Following the public meetings, comments were submitted on the proposed rule changes. Click on public comments summary with NMED response. Click on complete public comments.
In addition to the rule changes proposed in NMED’s Petition EIB 11-11 (R), the department seeks public review and comment on possible rule changes that would create an Installer Specialist classification, and that would provide for hydrogeologic mapping of areas where certain standards should not be applied since their imposition would not result in any improved protection of public health or water quality.
The Installer Specialist classification, if adopted, would become effective on July 1, 2012, and would require 16 hours of approved training, in addition to other qualifications. Click here for a list of training curricula that have been approved by NMED.
Find an Existing Liquid Waste Permit This tool searches the current Liquid Waste Database. You can customize your search to find a liquid waste permit by owner, address, city, TRS, and other parameters. Once you find the permit you are searching for, you can click on the Result bullet, and then the Select button. A replicate permit will appear which can be printed (there may be limitations on this function, depending on your browser).
Regulation of septic systems by the State of New Mexico dates back as far as 1937. You can now download the historic regulations, amendments and policies by clicking on the links in the table below.
| Regulation Title | Adopting Agency | Date |
|---|---|---|
| Board of Public Health | 6/28/1937 | |
| Board of Public Health | 6/28/1937 | |
| Policy for Individual Water Supplies and Sewage Disposal Systems | Board of Public Health | 9/27/1959 |
| Liquid Waste Disposal Regulations | Environmental Improvement Division | 9/14/1973 |
| Liquid Waste Disposal Regulations | Environmental Improvement Board | 8/7/1979 |
| Liquid Waste Disposal Regulations Amendments | Environmental Improvement Board | 1/30/1980 |
| Liquid Waste Disposal Regulations | Environmental Improvement Board | 10/10/1985 |
| Liquid Waste Disposal Regulations | Environmental Improvement Board | 2/1/1990 |
| Environmental Improvement Board | 11/30/1995 |
|
| Liquid Waste Disposal Regulations | Environmental Improvement Board | 10/15/1997 |
| Liquid Waste Disposal Regulations Amendments | Environmental Improvement Board | 4/1/2004 |
| Liquid Waste Disposal and Treatment Regulations | Environmental Improvement Board | 9/1/2005 |
The Liquid Waste Program has begun publishing technical information quarterly in the Septic Underground. These documents cover various topics related to the design, permitting and construction of onsite wastewater treatment and dispersal systems. Follow the link above to the webpage for Contractors, Inspectors and Homeowners for links to all editions.
The Wastewater Technical Advisory Committee (WTAC) adopted revised submittal and review criteria at its June 23, 2011 meeting. Click on the following link to view or download the revised WTAC Product Review Document.
In an effort to streamline the permitting process and ensure complete permit applications, NMED has adopted several new forms. In addition to a Liquid Waste Permit Application, applicants must complete and submit an Application Checklist and a Site Plan Drawing Checklist. These documents will provide applicants with checklists to verify that all the required information is included in their application to avoid delays caused by an incomplete application. A Variance Submittal Checklist is also required with variance applications.
The exemption for 0.5 acre lots in Section 301.F(4) of the Liquid Waste Disposal and Treatment Regulaitons, 20.7.3 NMAC, is no longer in effect. The exemption states that conventional systems are allowed:
"(4) for lots 0.5 acre to 0.75 acre on a public water system, not within a 200 foot radius of a public supply well and 101 feet to 600 feet to groundwater, the total design flow shall not exceed 450 gallons per day or the total design flow allowed in Subsection C of 20.7.3.301 NMAC, whichever is greater, for 5 years after the effective date of these regulations;"
As of September 1, 2010, the five year exemption period has lapsed and permits for conventional onsite wastewater systems with the conditions above will not be accepted by NMED.
An Indigent Liquid Waste Assistance Project that will fund the elimination of cesspools and other substandard onsite wastewater systems serving indigent households in the Middle Rio Grande Basin (MRGB) has been launched by the Liquid Waste Program in collaboration with the Office of the Natural Resource Trustee. A Fact Sheet and Application Forms in English and Spanish are included in the link above. Additional background information on this Project is available here. Efforts to assist indigent households in other areas of New Mexico are ongoing. A presentation about the indigent program, titled Onsite Wastewater Assistance Program for Indigent Households in New Mexico is now available for download. Contact the Liquid Waste Program Manager, Dennis McQuillan, if you have any questions. Dennis is available by email at Dennis.McQuillan@state.nm.us or by phone at 505-476-8607.
Santa Fe County, Water Well Testing Results, 2009
The Liquid Waste Program has issued a Fiscal Year 2009 Annual Report that summarizes the current status of the program, financial information, program performance and the direction of the program.
A representative of the National Sanitation Foundation (NSF) made a presentation to the Wastewater Technical Advisory Committee at its March 189, 2010 meeting about the NSF certification process for onsite products.
- NMED held ten public meetings around the state to discuss the issues related to potential regulation amendments. Meeting Presentation
- A requirement for resilient connectors that meets all requirements of ASTM Standard C-923 on precast concrete septic tanks installed in New Mexico has been issued by NMED. A letter describing the new requirement was sent to all concrete tank manufacturers.
The Liquid Waste Program, in collaboration with the Wastewater Technical Advisory Committee, has developed a technical guidance for design of Low Pressure Pipe, LPP systems. This guidance describes standards that are acceptable to the Liquid Waste Program for the design of LPP systems. Designs based on other technical sources will also be considered, but on a case-by-case basis. For general information about LPP systems, see the EPA Technical Fact Sheet.
Carlos Romero, Director of the Environmental Health Division of NMED has issued a Notice of Non-Enforcement. This document gives notice that, until further notice, NMED will not enforce portions of Section 904, "Requirements for Certification", of 20.7.3 NMAC, the Liquid Waste Disposal and Treatment Regulations. Section 904 was to have gone into effect July 1, 2009. A public meeting will be held for all interested parties to discuss possible changes to Section 904 on May 25th at the NMED District I Office in Albuquerque.
- The Liquid Waste Program issued a Fiscal Year 2008 Annual Report that summarized the status of the program, financial information, program performance and the direction of the program.
- Technologies other than conventional septic tanks and drainfields are available for use on difficult sites or where conditions require a higher level of wastewater treatment. A summary of these technologies can be seen in the guidance document Alternative Technologies to a Conventional Treatment System.
- A paper, written by Dennis McQuillan and Eugene Bassett and entitled Return Flow to Groundwater from Onsite Wastewater Systems, was presented at the NOWRA conference in Milwaukee in April, 2009.
- The USEPA has created a Website for Small Communities. It can be accessed at: http://www.epa.gov/owm/mab/smcomm/index.htm.
- NMED Field Office Training. Various topics are presented and discussed around New Mexico, and are available upon request for interested groups.
- The Advanced Treatment System Report has been updated. The new version of this report contains more data and information on specific advanced treatment systems. The October 2006 report is still available at: 2006 Advanced Treatment System Report
- Liquid Waste Environmental Geographic Information System (eGIS) (aquifer sensitivity maps, hydrogeologic mapping, much more).
- The Office of the State Engineer has recently adopted Well Driller Regulations that require well drillers to comply with NMED regulations regarding setbacks from contamination sources. Go to page 6, Section 19.27.4.29.D of the OSE regulations for details. This requirement includes setbacks from existing on-site wastewater systems. Liquid Waste Treatment and Disposal Regulations require a minimum 100-foot separation of private wells, and a minimum 200-foot separation of public wells, from on-site wastewater disposal systems.
- Drinking water testing and bio-monitoring for arsenic and various other metals now available . See announcement from the New Mexico Health Department.
- Frequently Asked Questions