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

Cleve Reber

This site has been deleted from the EPA Superfund National Priorities List — EPA's classification means construction-complete cleanup objectives were achieved, though monitoring may continue. Most-cited contaminant of concern: 1,1,1-Trichloroethane.

Sec 36 T10S R3E, Sorrento, Louisiana · ZIP 70778 · EPA ID LAD980501456

See Ascension ContaminantsEquity contextHow we read Superfund data
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
1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR)Groundwater1
1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR)Sludge1
1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR)Soil1
1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR)Solid Waste1
1,1-DichloroethaneHealth riskSuspected carcinogen (EPA C/likely); CNS depressant. Common at solvent-contaminated sites as a degradation intermediate. (EPA, ATSDR)Groundwater1
1,1-DichloroethaneHealth riskSuspected carcinogen (EPA C/likely); CNS depressant. Common at solvent-contaminated sites as a degradation intermediate. (EPA, ATSDR)Sludge1
1,1-DichloroethaneHealth riskSuspected carcinogen (EPA C/likely); CNS depressant. Common at solvent-contaminated sites as a degradation intermediate. (EPA, ATSDR)Solid Waste1
1,2,4-TrichlorobenzeneSediment1
1,2-DichlorobenzeneHealth riskLiver and kidney effects from chronic exposure. EPA MCL 600 µg/L. (EPA, ATSDR)Soil1
1,3-DichlorobenzeneHealth riskLimited human-health data; treated as a probable hepatotoxin. (EPA)Groundwater1
1,3-DichlorobenzeneHealth riskLimited human-health data; treated as a probable hepatotoxin. (EPA)Sediment1
1,3-DichlorobenzeneHealth riskLimited human-health data; treated as a probable hepatotoxin. (EPA)Sludge1
1,3-DichlorobenzeneHealth riskLimited human-health data; treated as a probable hepatotoxin. (EPA)Soil1
1,3-DichlorobenzeneHealth riskLimited human-health data; treated as a probable hepatotoxin. (EPA)Solid Waste1
1,3-DichlorobenzeneHealth riskLimited human-health data; treated as a probable hepatotoxin. (EPA)Surface Water1
1,4-DichlorobenzeneHealth riskIARC Group 2B possible carcinogen; common in mothballs and air fresheners. EPA MCL 75 µg/L. (IARC, EPA)Sediment1
2,4,6-TrinitrophenolSediment1
2,4,6-TrinitrophenolSurface Water1
AcetoneHealth riskLow chronic toxicity; high acute exposure causes CNS depression and respiratory irritation. (EPA, NIOSH)Surface Water1
AnilineSediment1
AnilineSoil1
Base Neutral AcidsGroundwater1
Base Neutral AcidsSludge1
Base Neutral AcidsSolid Waste1
BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA)Groundwater1
BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA)Sludge1
BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA)Solid Waste1
Benzo(B)FluorantheneSediment1
Benzoic AcidSediment1
ChlorobenzeneGroundwater1

Showing the top 30 pairs by SEMS citation count. 24 additional (contaminant, pathway) pairs are recorded for this site.

Drinking-water linkage · SDWIS

No Groundwater PWSes Serving Communities Within 3 Miles

No SDWIS public water systems drawing groundwater (or mixed sources) serve a community whose centroid sits within 3 miles of this site. Empty results are not a guarantee of non-impact — distance is computed to served-place centroids, and SDWIS does not expose individual wellhead locations.

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

Ascension County, Louisiana (no Census block groups within 1 mile and no host city — falling back to containing county): a population of 126,973. Why we surface this →

POPULATION SHARE
9.9%

Low-income

POPULATION SHARE
33.7%

People of color

POPULATION SHARE
7.2%

Under age 5

POPULATION SHARE
12.4%

Over age 64

Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror). 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.