Lower Rio Grande Pwwa South Valley
EPA ID: NM3502407 · 11,542 people served · 10 ZIP codes
ZipCheckup's reading of EPA records for Lower Rio Grande Pwwa South Valley (NM3502407): no drinking-water violations recorded since 2021. Checked against the EPA violation database, Lower Rio Grande Pwwa South Valley returns no entries for its service territory of 11,542 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Lower Rio Grande Pwwa South Valley Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Lower Rio Grande Pwwa South Valley have a median household income of $50,601 and about 156,381 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 42% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 66% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Lower Rio Grande Pwwa South Valley's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 5 detections recorded.
Comparable Water Systems
Similar-sized systems in New Mexico
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Lower Rio Grande Pwwa South Valley (EPA ID: NM3502407) is a community water system in New Mexico that serves approximately 11,542 people from groundwater sources.
This system provides water to 10 ZIP codes across 7 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.001 mg/L | No | 2023-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
10 of 10 ZIP records with known zones are in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by NM or modeled from parcel and building-footprint data.
- 88001 - Las Cruces
- 88005 - Las Cruces
- 88011 - Las Cruces
- 88012 - Las Cruces
- 88021 - Anthony
- 88044 - La Mesa
- 88047 - Mesilla Park
- 88048 - Mesquite
- 88052 - Organ
- 88072 - Vado
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Lower Rio Grande Pwwa South Valley (NM3502407) on EPA.gov.
Frequently Asked Questions
Is Lower Rio Grande Pwwa South Valley water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Lower Rio Grande Pwwa South Valley in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Lower Rio Grande Pwwa South Valley serve?
Lower Rio Grande Pwwa South Valley serves approximately 11,542 people across 10 ZIP codes in New Mexico.
Where does Lower Rio Grande Pwwa South Valley get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected; the table compares each one with the EPA MCL where one exists (April 2024 rule, compliance required from 2029) and with this state's enforceable standard where one exists.
EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lower Rio Grande Pwwa South Valley, NM: Serves 12K People. https://zipcheckup.com/water-system/nm3502407/
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