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Superfund / NPL site · EPA Superfund SEMS through latest publishNPL FinalFEDERAL FACILITY

Milan Army Ammunition Plant

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

Hwy 104, Milan, Tennessee · ZIP 38358 · EPA ID TN0210020582

See Carroll 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
NitrobenzeneGroundwater6
2,4,6-TrinitrotolueneGroundwater5
2,4-DinitrotolueneGroundwater5
Hexahydro-1,3,5-Trinitro-1,3,5-Triazine (Rdx)Groundwater5
1,3,5-TrinitrobenzeneGroundwater4
1,3-DinitrobenzeneGroundwater4
2,4,6-TrinitrotolueneSoil4
2,6-DinitrotolueneGroundwater4
Hexahydro-1,3,5-Trinitro-1,3,5-Triazine (Rdx)Soil4
ManganeseHealth riskExcess inhalation can cause manganism, a Parkinson-like neurological disorder. (ATSDR)Soil4
1,3,5,7-Tetranitro-1,3,5,7-Tetrazocane (Hmx)Groundwater3
1,3,5,7-Tetranitro-1,3,5,7-Tetrazocane (Hmx)Soil3
2-Amino-4,6-DinitrotolueneGroundwater2
4-Amino-2,6-DinitrotolueneGroundwater2
ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)Soil2
CadmiumSoil2
NitrateHealth riskDrinking-water nitrate causes methemoglobinemia ('blue-baby syndrome') in infants; EPA MCL is 10 mg/L as N. (EPA)Groundwater2
ThalliumSoil2
1,3,5-TrichlorobenzeneGroundwater1
1,3,5-TrinitrobenzeneSoil1
1,3-DinitrobenzeneSurface Water1
1-Methyl-2-NitrobenzeneGroundwater1
1-Methyl-2-NitrobenzeneSurface Water1
2,4,6-TrinitrotolueneSurface Water1
2,4-DinitrotolueneSoil1
2,4-DinitrotolueneSurface Water1
2-Amino-4,6-DinitrotolueneSurface Water1
4-Amino-2,6-DinitrotolueneSurface Water1
ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)Groundwater1
BerylliumGroundwater1

Showing the top 30 pairs by SEMS citation count. 13 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

Carroll County, Tennessee (no Census block groups within 1 mile and no host city — falling back to containing county): a population of 28,381. Why we surface this →

POPULATION SHARE
16.4%

Low-income

POPULATION SHARE
16.0%

People of color

POPULATION SHARE
6.5%

Under age 5

POPULATION SHARE
20.1%

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.