New Mexico lets a homeowner irrigate with gray water. Your covenant still governs the hardware.
New Mexico lets a homeowner irrigate with gray water. Your covenant still governs the hardware.
2026-09-15 · New Mexico · Compliance
New Mexico does not require a permit to irrigate a garden with household gray water. What it has not done — and people consistently assume it has — is limit an association's authority over the tanks, pipes and distribution beds that make it possible.1
The exemption
The state environment department “shall not require a permit for applying less than two hundred fifty gallons per day of private residential gray water originating from a residence for the resident's household gardening, composting or landscape irrigation.”
And the definition: “'gray water' means untreated household wastewater that has not come in contact with toilet waste and includes wastewater from bathtubs, showers, washbasins, clothes washing machines and laundry tubs.”
An honest note on dating. This exemption is pre-existing New Mexico law, not a 2025 creation — it dates from the 2003 gray water legislation. It appears here because Senate Bill 21 (2025), Laws 2025 Chapter 112, signed April 8, 2025, reprinted it in full when amending the surrounding statute. That means a board can be pointed at a 2025 chapter law rather than a twenty-two-year-old one, but nothing about the right changed.
The conditions that reach an architectural committee
The exemption carries eleven conditions. Four are the ones a landscaping or architectural committee will actually meet:
“(6) gray water is used on the site where it is generated and does not run off the property lines”
“(8) ponding is prohibited, application of gray water is managed to minimize standing water on the surface and to ensure that the hydraulic capacity of the soil is not exceeded”
“(9) gray water is not sprayed”
“(11) gray water use within municipalities or counties complies with all applicable municipal or county ordinances”
What the statute does and does not do
It removes a state permit requirement. It does not preempt a covenant.
Paragraph (11) subordinates gray water use to municipal and county ordinances, and the exemption says nothing at all about private restrictions. So an association may still regulate the visible apparatus — tanks, piping, distribution beds, any change to grading or drainage — through ordinary architectural review.
An owner who installs a gray water system without approval is in the same position as an owner who installs anything else without approval.
The reporting line is the reverse of the one people expect
New Mexico made this easy at the state level and left the association's authority fully intact.
That has a consequence for drought-pressed communities that waiting out does not change: silence in a “no alterations without approval” covenant reads as a no. An association that wants to permit gray water systems has to say so in its rules. Doing nothing is not neutrality; it is a prohibition administered case by case.
What a permissive rule would have to address
Four things, all of which track the statutory conditions and none of which require a board to take a view on water policy.
Containment. The statute requires use on site with no run-off across property lines — which on the small lots typical of New Mexico townhouse and patio-home communities is a real constraint, and one the association has a legitimate interest in.
No ponding, no spraying. Both are association-relevant for nuisance, mosquito and common-area reasons as well as statutory ones.
Visible hardware. Tanks and surge basins are the part an architectural standard exists to address. A rule that specifies screening, placement and colour resolves nearly every dispute before it starts.
Local ordinances. Because paragraph (11) makes compliance with municipal and county rules a condition of the exemption, an approval conditioned on the owner satisfying local requirements costs the association nothing.
Where this fits with the rest of the water picture
An Albuquerque association is already navigating a $3-per-square-foot turf removal rebate, an eight-hour daily prohibition on spray irrigation from April through October, a 10 percent cool-season grass cap on required landscaping in development approvals — 20 percent for multi-family, with 75 percent of the landscaped area required to be living plants — and a rule that artificial turf does not count as living vegetative material.
Gray water is one of the few options in that picture that reduces potable demand without reducing planting. An association whose covenants require substantial landscaping and whose members are being paid to remove turf has a reason to look at it.
One correction worth carrying: claims circulating online that a specific section of New Mexico's Homeowner Association Act prohibits turf or xeriscape covenants do not correspond to any provision of that Act. They carry no authority.
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