Superfund / NPL site · EPA Superfund SEMS through latest publishNPL Final

Griggs & Walnut Ground Water Plume

This site is currently on the EPA Superfund National Priorities List and remains under federal cleanup oversight. Most-cited contaminant of concern: Tetrachloroethene.

153 North Cottonwood St., Las Cruces, New Mexico · ZIP 88004 · EPA ID NM0002271286

CLEANUP TIMELINE

Listing-date and cleanup-phase enrichment from EPA's per-site SEMS profile is queued for a follow-up ingest pass. Until then, this section will populate from EPA's published timeline data.

Anomaly engine

Notable Signals

No notable signals at this Superfund site for the current ingest. Cleanup-phase and SEMS-action flags are deferred to a follow-up engineering pass.

Contaminants of concern · per EPA SEMS

What's In This Site

Each row pairs a contaminant with the medium it was found in (the exposure pathway). Hover any named contaminant for an agency-cited health-risk summary. Cited count = number of SEMS decision records (RODs and related) that name the pair.

ContaminantPathwayCited
TetrachloroetheneHealth riskPCE / 'perc'. IARC Group 2A probable carcinogen; central-nervous-system effects; common dry-cleaning solvent and DNAPL plume contaminant. EPA MCL 5 µg/L. (IARC, EPA)Groundwater1
Drinking-water linkage · SDWIS

Groundwater Systems Serving Communities Within 3 Miles

The 20 systems below draw on groundwater (or mixed sources) and serve communities whose centroid sits within 3 miles of this site. Distance is to the served-city centroid — SDWIS does not expose individual wellhead locations, so this is a proximity screen, not a wellhead-impact assessment.

Water systemServesDistancePopulation servedSourceStatus
Organ View Estates PrivateLas Cruces1.9 mi92GROUNDWATERUNRESOLVED
Cercado Courts PrivateLas Cruces1.9 mi99GROUNDWATERUNRESOLVED
Hacienda Acres Water System (Lcu) PrivateLas Cruces1.9 mi3,042GROUNDWATER6 HEALTH-BASED · 5YR
Las Cruces Municipal Water System MunicipalLas Cruces1.9 mi98,175GROUNDWATERUNRESOLVED
University Estates Water System (Lcu) PrivateLas Cruces1.9 mi4,526GROUNDWATERIn compliance
Madrid Mhp PrivateLas Cruces1.9 mi67GROUNDWATERUNRESOLVED
New Mexico State University State-ownedLas Cruces1.9 mi24,000GROUNDWATERIn compliance
Las Alturas Estates (Lcu) PrivateLas Cruces1.9 mi936GROUNDWATERIn compliance
San Andres Estates Water System (Lcu) PrivateLas Cruces1.9 mi747GROUNDWATERIn compliance
Alameda Acres Mhp PrivateLas Cruces1.9 mi291GROUNDWATER2 HEALTH-BASED · 5YR
Villa Del Sol Mobile Home Park PrivateLas Cruces1.9 mi551GROUNDWATERUNRESOLVED
St Johns Mhp PrivateLas Cruces1.9 mi431GROUNDWATERUNRESOLVED
Covered Wagon Mobile Home Manor PrivateLas Cruces1.9 mi100GROUNDWATERIn compliance
Vista Real Mhp PrivateLas Cruces1.9 mi124GROUNDWATERUNRESOLVED
Picacho Mdwca MunicipalLas Cruces1.9 mi847GROUNDWATERIn compliance
Country Mobile Manor PrivateLas Cruces1.9 mi205GROUNDWATERIn compliance
Leasburg Mdwca MunicipalLas Cruces1.9 mi831GROUNDWATERUNRESOLVED
Winterhaven Mdwc And Swa MunicipalLas Cruces1.9 mi147GROUNDWATERIn compliance
Talavera Mdwca MunicipalLas Cruces1.9 mi166GROUNDWATERIn compliance
Greenwood Terrace M H Subdivision PrivateLas Cruces1.9 mi120GROUNDWATERIn compliance

Methodology: served-city centroid (TIGER 2020) is used as the PWS coordinate. Source-water classification from SDWIS primary_source_code; only groundwater and mixed-source systems are queried. Click any system above for its full SDWIS profile.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Near This Site

Within 1 mile of this site (13 Census block groups, population-weighted demographics): a population of 13,538. Why we surface this →

POPULATION SHARE
64.1%

Low-income

POPULATION SHARE
81.5%

People of color

POPULATION SHARE
7.0%

Under age 5

POPULATION SHARE
15.7%

Over age 64

Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 1-mile buffer around this site (from USEPA-clone/EJAM-open blockgroupstats). NPL site proximity contributes to the national EJ pattern; indicator-level percentile and disparity scores are surfaced on the county page and the state page.

Source. EPA Superfund Enterprise Management System (SEMS) · retrieved 2026-05-07. SEMS is a federal public-domain dataset under 17 USC §105.

What this is not. We report EPA's published Superfund record — site listing, status, and contaminants of concern as named in EPA's decision documents. We do not perform site visits, independent air or water sampling, or current-state health-risk assessment. NPL listing reflects EPA's Hazard Ranking Score at a point in time; it does not by itself describe present-day exposure.