How many wastewater permits expire in New Mexico in 2028?

6 NPDES permits held by publicly owned wastewater treatment plants in New Mexico expire in 2028, covering a combined average flow of 2 MGD. The busiest month is Feb 2028 with 2 expiries.

What happens when an NPDES permit expires?

The plant must have applied for renewal at least 180 days before the expiry date. If the agency has not reissued the permit by then, the old permit is administratively continued and stays enforceable. The reissued permit typically carries updated effluent limits based on the latest water-quality standards, which is what drives upgrade projects.

Which is the largest plant with a permit expiring in New Mexico in 2028?

Anthony Water & Sanitation Dis in Anthony, treating about 0.91 MGD under permit NM0029629, expiring Dec 2028.

How do I get contacts for the plants on this list?

Every plant links to its profile with flow, permit and compliance data. Treatment technology and verified decision-maker contacts for each plant, and the same list for every state and year, are available in Klarifi with a free account.

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New Mexico wastewater permits expiring in 2028

Name: New Mexico NPDES permits expiring in 2028
Creator: Klarifi
License: https://klarifi.io/terms-of-service

6 NPDES permits · 2 MGD combined average flow

6 publicly owned wastewater treatment plants in New Mexico hold NPDES permits that expire during 2028, issued by US EPA Region 6 (with NMED). The table lists each plant with its permit number, expiry month, average flow, treatment technology and three-year violation count, in order of expiry.

An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.

Other years:

2026 (6)All New Mexico NPDES permits →

Publicly owned wastewater treatment plants in New Mexico with NPDES permits expiring in 2028, from EPA ICIS-NPDES records. Refreshed on every release.
Facility	City	Avg flow (MGD)	NPDES permit	Expires	Violations (3y)
Espanola, City Of	Espanola	0.83	NM0029351	Feb 2028	13
Village Of Chama	Chama	0.08	NM0027731	Feb 2028	170
Mora Mutual Water & Sewer Works Association	Mora	—	NM0024996	Mar 2028	398
The Village Of Angelfire, WWTP	Angel Fire	0.04	NM0030503	Jun 2028	0
Shiprock WWTF	Shiprock	0.28	NN0020621	Aug 2028	8
Anthony Water & Sanitation Dis	Anthony	0.91	NM0029629	Dec 2028	42

New Mexico permit renewals in 2028: questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 26, 2026.

Wastewater terms: NPDES permit · POTW · Biological nutrient removal · Tertiary treatment · Significant industrial user · WWTP · all terms

Cite this page

Journalists, researchers and educators are welcome to quote these figures. Please credit Klarifi as the source and link to this page.

Klarifi. “NPDES permits expiring in 2028: New Mexico wastewater plants.” Updated October 26, 2026. https://klarifi.io/facilities/new-mexico/permits-expiring/2028

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