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Record of Proceedings

Governing Body Joint Work Session with Public Infrastructure Advisory Board - October 20, 2026

Meeting Portal — Tuesday, October 20, 2026
BodyRio Rancho, New Mexico
SessionMeeting Portal
DateTuesday, October 20, 2026
StatusFILED
Video Record
0:00 / 40:03

Original source
Transcript — VerbatimClick a timed line to jump · ⧉ to share it

Speaker numbers apply only to this recording. Names come from transcript evidence. “Possibly” marks uncertain attribution.

Speaker 1

0:00

Hold on, let me go back to my notes.

Speaker 2

0:02

You don't have to go to the slide.

0:03

I just needed to do this.

Speaker 1

0:06

Yeah, yeah.

0:06

So okay, so during the fiscal year, it's per year.

0:09

So during the fiscal year, there are about 12,000 acre feet of water were pumped, right?

0:14

Yes.

0:14

But we're and we're currently permitted that we learned from Maria for about 26,000 acre feet per year.

0:22

And so I I wanted to make sure that I'm understanding that correctly because often we are asked about our you know, water capacity and are we pulling too much water and will we have water for years to come?

0:35

Um and so this is letting us know that right now we are producing less than half of the water per year that we're currently permitted to produce.

0:46

Is that an accurate summary of these two presentations?

Speaker 3

0:49

Uh that is correct.

0:51

And of the 34 wells that she referenced, we'll have to continue to drill those wells uh as we get up to that 26,000 acre feet.

1:00

Uh and then that way we kind of take from little straws from different uh areas in there.

1:06

And uh but that is correct.

1:08

We right now we're producing uh and we report to the Office of the State Engineer in a calendar year.

1:14

So if you ever see the numbers not matched, that's what it could potentially be.

1:17

Uh but we're producing uh doing a little over 12,000 acre feet uh per calendar year with our current population.

1:23

Uh I don't know that we can double on population, but

Unassigned speaker

1:26

uh

Speaker 3

1:26

because we'll have commercial, we'll have schools, we have etc.

1:29

in

Unassigned speaker

1:30

there.

Speaker 3

1:30

But uh but yes, that is correct.

1:32

And then even on the wastewater slides, like I said, the the there's a certain percentage uh we're meeting our uh return flow back to the river too.

1:41

And again, direct and the difference we can inject or reuse however uh need be along the way in our system.

Speaker 1

1:48

Okay, I think that and that's just just for me, it was a helpful summary for just for the two presentations to put those together as we look at the future growth of the city, right?

1:57

That's part of what we need to understand through this presentation is thinking about how the city can and should grow and what our water needs are currently, what our water resources are currently, and then what our water needs will be in the future.

2:12

Um so thank you for that uh clarification.

2:15

I think that's all I'll bother you with for now, but I know where to find you.

Speaker 4

2:19

Mr.

2:19

Mayor, members of the governing body, I think Councillor Colbert's uh I don't want to take away any additional questions, but I think

Unassigned speaker

2:24

that

Speaker 4

2:24

you know you'll learn more about that from New Mexico Tech and the hydrology.

2:28

Um one of the things that you know in Maria mentioned the conservation efforts of of the city and you know, way back in the 80s, um our zoning ordinances required at least 10 percent of the lot be commercial uh be sawed or grass, right?

2:41

And so we had something that wasn't exactly in favor of conservation, um but it you know, through the efforts of conservation and and monitoring through a 40-year um water plan, one of the the figures that people like Jason at MED and OSC look at is GPCD gallons per day per

Speaker 3

2:58

capita day.

Speaker 4

2:59

Yeah, per capita day.

3:00

Um and it's you know steadily marched down from about 120, so 120 gallons per person to less than 100.

3:09

It's somewhere, it's in 90 somewhere between 95 and 90, 98.

3:13

I'm not gonna give you the exact number because I don't remember it off top of my head.

3:16

But so even you know, as population has grown, as businesses growing, the actual usage has gone down, and it's through a lot of things, and it's part of that's change in human behavior as well because we've come more conscious of uh being smarter with our water.

Unassigned speaker

3:30

Thank

Speaker 5

3:30

you, Councillor

Speaker 2

3:31

Cobrath, Counselor Mann.

3:33

This is complicated, but you've done an excellent job of explaining it.

3:38

Um I believe the citizens of the city should have a great deal of confidence in what you've done, um and I'm uh confident that if we're we're ahead to 2041, um there is little need to be concerned.

3:56

Um I've it's dispelled a lot of my concerns that I've had as I've um been getting new to this job.

4:03

Um so thank you.

4:04

Thank you for your excellent work.

4:06

Um I'm grateful my kids on watching today because they think those um those water uh storage tanks are dinosaur houses, so you would have crushed their dreams.

4:15

Um with that I yield.

Speaker 3

4:21

No dinosaurs.

4:23

No, thank

Unassigned speaker

4:24

you.

Speaker 5

4:25

Anything further from the board or council hearing none, thank you, Director Gregoris.

4:31

Let's take a five-minute break or a seven-minute group break and reconvene at 5.15.

4:44

They're not listening, so

Unassigned speaker

4:50

if

Speaker 5

4:50

you're gonna have

Discussion Breakdown — Share of Meeting
Water And Wastewater Management█████████████████████████████████████████████82%
Public Engagement██████████18%
Summary of Proceedings

Governing Body Joint Work Session with Public Infrastructure Advisory Board

On October 20, 2026, the Rio Rancho Governing Body and Public Infrastructure Advisory Board held a joint work session focused entirely on water resources. City staff provided an overview of current water and sewer operations, followed by a detailed technical presentation from the New Mexico Bureau of Geology on the region's aquifer systems, recent studies, and future mapping initiatives.

Discussion Items

  • Overview of Water and Sewer Operations: City staff, including Director Gregoris and Maria, reported that Rio Rancho currently pumps approximately 12,000 acre-feet of water per year, operating at less than half of its permitted capacity of 26,000 acre-feet per year through its 34 wells. Councilor Karissa Culbreath summarized these figures to highlight the gap between current production and permitted capacity, contextualizing the city's potential for future growth. Staff noted that conservation efforts have successfully lowered the city's Gallons Per Capita per Day (GPCD) from roughly 120 to less than 100. Councilor David Mann stated that the presentation dispelled his concerns and expressed strong confidence in the city's water outlook.
  • Aquifer Mapping and Management (New Mexico Bureau of Geology): Layla Sturgis and Dan from the New Mexico Bureau of Geology delivered a detailed presentation on the Santa Fe Group aquifer underlying Rio Rancho. They described a 3D subsurface model identifying four distinct aquifer units: the Upper, Middle, and Lower Rio Rancho units, and the deeper Zia unit. The study found the Upper Rio Rancho unit has the highest permeability but is mostly restricted to the east side of the city, while the Middle unit is less permeable but far more extensive. Water table depths vary significantly, from shallow levels near the Rio Grande to over 1,300 feet deep in the northwest. Groundwater quality analysis showed elevated Total Dissolved Solids (TDS) in the Ziana Horst area. Sturgis announced that the Bureau will conduct airborne electromagnetic (AEM) surveys around December 2026 as part of the state's 50-year water plan to further map the region's aquifers, offering to target specific areas of interest for the city.
  • Board/Council Questions and Deliberation:
    • Well Operations and Capacity: Councilor Culbreath confirmed the production numbers with staff to ensure an accurate understanding of water resources for growth planning.
    • Risk of Subsidence: In response to a question about land subsidence from pumping, the presenters stated their studies did not address this. Dan noted that satellite-based InSAR data could be used to monitor it, and while subsidence has caused fractures in nearby well fields like Buckman, it has not been a prominent concern raised for Rio Rancho in their scientific work.
    • Water Migration from Injection Wells: A councilor asked about the path and speed of water from injection wells. Dan explained that water percolates downward at roughly five to seven feet per day through the heterogeneous sand and clay layers, which create a tortuous path that varies by location.
    • Rio Grande Conditions: Board member Linda Cosand inquired about the recent drying of the Rio Grande. The presenters attributed it to drought and low snowmelt, confirming that multiple agencies continuously monitor the river's condition.

Key Outcomes

  • City staff confirmed a significant gap between current water production (~12,000 acre-ft/yr) and permitted capacity (26,000 acre-ft/yr), providing a substantial buffer for future demand.
  • The governing body and board received an in-depth geological briefing on the aquifer's structure, including the varying permeability of different units and water quality constraints.
  • The New Mexico Bureau of Geology offered to coordinate with the city to target upcoming AEM survey flights to address specific local data needs.
  • No formal votes or action items were taken, as the session was a work session focused on information sharing and discussion.

Meeting Transcript

Hold on, let me go back to my notes. You don't have to go to the slide. I just needed to do this. Yeah, yeah. So okay, so during the fiscal year, it's per year. So during the fiscal year, there are about 12,000 acre feet of water were pumped, right? Yes. But we're and we're currently permitted that we learned from Maria for about 26,000 acre feet per year. And so I I wanted to make sure that I'm understanding that correctly because often we are asked about our you know, water capacity and are we pulling too much water and will we have water for years to come? Um and so this is letting us know that right now we are producing less than half of the water per year that we're currently permitted to produce. Is that an accurate summary of these two presentations? Uh that is correct. And of the 34 wells that she referenced, we'll have to continue to drill those wells uh as we get up to that 26,000 acre feet. Uh and then that way we kind of take from little straws from different uh areas in there. And uh but that is correct. We right now we're producing uh and we report to the Office of the State Engineer in a calendar year. So if you ever see the numbers not matched, that's what it could potentially be. Uh but we're producing uh doing a little over 12,000 acre feet uh per calendar year with our current population. Uh I don't know that we can double on population, but uh because we'll have commercial, we'll have schools, we have etc. in there. But uh but yes, that is correct. And then even on the wastewater slides, like I said, the the there's a certain percentage uh we're meeting our uh return flow back to the river too. And again, direct and the difference we can inject or reuse however uh need be along the way in our system. Okay, I think that and that's just just for me, it was a helpful summary for just for the two presentations to put those together as we look at the future growth of the city, right? That's part of what we need to understand through this presentation is thinking about how the city can and should grow and what our water needs are currently, what our water resources are currently, and then what our water needs will be in the future. Um so thank you for that uh clarification. I think that's all I'll bother you with for now, but I know where to find you. Mr. Mayor, members of the governing body, I think Councillor Colbert's uh I don't want to take away any additional questions, but I think that you know you'll learn more about that from New Mexico Tech and the hydrology. Um one of the things that you know in Maria mentioned the conservation efforts of of the city and you know, way back in the 80s, um our zoning ordinances required at least 10 percent of the lot be commercial uh be sawed or grass, right? And so we had something that wasn't exactly in favor of conservation, um but it you know, through the efforts of conservation and and monitoring through a 40-year um water plan, one of the the figures that people like Jason at MED and OSC look at is GPCD gallons per day per capita day. Yeah, per capita day. Um and it's you know steadily marched down from about 120, so 120 gallons per person to less than 100. It's somewhere, it's in 90 somewhere between 95 and 90, 98. I'm not gonna give you the exact number because I don't remember it off top of my head. But so even you know, as population has grown, as businesses growing, the actual usage has gone down, and it's through a lot of things, and it's part of that's change in human behavior as well because we've come more conscious of uh being smarter with our water. Thank you, Councillor Cobrath, Counselor Mann. This is complicated, but you've done an excellent job of explaining it. Um I believe the citizens of the city should have a great deal of confidence in what you've done, um and I'm uh confident that if we're we're ahead to 2041, um there is little need to be concerned. Um I've it's dispelled a lot of my concerns that I've had as I've um been getting new to this job. Um so thank you. Thank you for your excellent work.

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