Iowa Army Ammunition Plant
NPL SiteMiddletown, IA
According to the EPA Superfund Enterprise Management System, Iowa Army Ammunition Plant in Middletown, IA is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 29.73. The public extract catalogs 32 contaminant records for this site. NPL listing is a cleanup-authority designation, not a measured health-risk score.
Superfund National Priorities List inclusion (status and HRS score shown above) is the EPA's formal designation that a contaminated site qualifies for long-term federal cleanup authority under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). A federal-facility classification means the site is owned or operated by a federal agency, which routes cleanup responsibility differently than a privately owned site.
"Construction Complete" (status shown above) is an EPA milestone marking that the physical remedy work is finished, not that the site has exited EPA oversight; long-term monitoring can continue afterward. Deletion from the NPL is a separate, later step the EPA takes only once it determines every planned response action is finished.
NPL listing is a cleanup-authority designation in the EPA record, not a quantitative health-risk score. HRS scores of 28.50 or above qualify a site for the NPL under the EPA screening model (toxicity, pathways, waste quantity, and affected population factors). For current site conditions and official community notices, see the EPA Regional Superfund profile and the Iowa environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| 1,3,5,7-TETRANITRO-1,3,5,7-TETRAZOCANE (HMX) | Soil |
| 1,3,5-TRINITROBENZENE | Soil |
| 2,4,6-TRINITROTOLUENE | Soil |
| 2,4-DINITROTOLUENE | Soil |
| ANTIMONY | Soil |
| ARSENIC | Soil |
| BARIUM | Soil |
| BENZO(B)FLUORANTHENE | Soil |
| BENZO[A]ANTHRACENE | Soil |
| BENZO[A]PYRENE | Soil |
| BERYLLIUM | Soil |
| CADMIUM | Soil |
| CHROMIUM(VI) | Soil |
| COPPER | Soil |
| DIBENZO(A,H)ANTHRACENE | Soil |
| HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE (RDX) | Groundwater |
| HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE (RDX) | Soil |
| IRON | Soil |
| LEAD | Soil |
| MERCURY | Soil |
| POLYCHLORINATED BIPHENYLS (PCBs) | Soil |
| POTASSIUM-40 | Soil |
| THALLIUM | Soil |
| UNEXPLODED ORDNANCE (UXO) | Solid Waste |
| URANIUM-234 | Buildings/Structures |
| URANIUM-234 | Soil |
| URANIUM-234/235/238 | Buildings/Structures |
| URANIUM-234/235/238 | Soil |
| URANIUM-235 | Buildings/Structures |
| URANIUM-235 | Soil |
| URANIUM-238 | Buildings/Structures |
| URANIUM-238 | Soil |
Location
Other Superfund Sites in Iowa
| Site Name | Status | HRS Score |
|---|---|---|
| Aidex Corp. | Deleted NPL Site | 0.00 |
| Des Moines TCE | NPL Site | 42.28 |
| E.I. du Pont de Nemours & Co., Inc. (County Road X23) | Deleted NPL Site | 46.01 |
| Electro-Coatings, Inc. | Deleted NPL Site | 42.24 |
| Fairfield Coal Gasification Plant | NPL Site | 38.05 |
| Farmers' Mutual Cooperative | Deleted NPL Site | 33.74 |
| Highway 3 PCE | NPL Site | 34.79 |
| John Deere (Ottumwa Works Landfills) | Deleted NPL Site | 42.32 |
| LaBounty Site | Deleted NPL Site | 70.73 |
| Lawrence Todtz Farm | NPL Site | 52.11 |
How does this site's HRS score compare in Iowa?
Of the 25 Iowa Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Iowa Army Ammunition Plant ranks #24 by score (29.73).
Either side of it: Vogel Paint & Wax Co. (31.45), Shaw Avenue Dump (30.01), Aidex Corp. (0.00)
Frequently Asked Questions
What is the Iowa Army Ammunition Plant Superfund site? ▼
What does NPL listing mean for Iowa Army Ammunition Plant? ▼
What is the HRS score for Iowa Army Ammunition Plant? ▼
What contaminants are at the Iowa Army Ammunition Plant site? ▼
What is the cleanup status of Iowa Army Ammunition Plant? ▼
NPL listing is a cleanup-authority designation in the EPA record, not a quantitative health-risk score. See Superfund Sites Explained for how the National Priorities List, Hazard Ranking System, and cleanup phases work.
Read our methodology - how this data is sourced, computed, and verified.