Sioux, IA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Sioux in Iowa · Population: 35,984
TRI sites such as Perdue Foods LLC - Sioux Preme Packing Co. Center Plant; Rosenboon Machine & Tool Inc; Pella Corp Sioux Center Operations; SDWIS systems such as SIOUX CENTER MUNICIPAL WATER DEPARTMENT; ORANGE CITY MUNICIPAL WATER DEPARTMENT; SHELDON WATER DEPARTMENT; NPL sites such as Farmers' Mutual Cooperative; Vogel Paint & Wax Co. anchor Sioux, IA's EPA extract. Derived burden score 43/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Sioux include RURAL WATER SYSTEM #1; ROCK VALLEY RURAL WATER DISTRICT, while Perdue Foods LLC - Sioux Preme Packing Co. Center Plant leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 43/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Sioux -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Sioux, IA: EPA TRI 2023 reporting year
Same facilities, both years
+2.0%
11 facilities that filed in 2022 and 2023
Whole inventory
+2.0%
64.8 thousand lb → 66.1 thousand lb, every facility that filed
- Sioux, IA's total reported releases rose from 64.8 thousand lb in 2022 to 66.1 thousand lb in 2023, based on EPA TRI filings.
- Sioux, IA's land releases rose from 0 lb in 2022 to 8.4 thousand lb in 2023, based on EPA TRI filings.
- Sioux, IA's water releases rose from 0 lb in 2022 to 100 lb in 2023, based on EPA TRI filings.
- Sioux, IA's air releases fell from 44.3 thousand lb in 2022 to 37.4 thousand lb in 2023, based on EPA TRI filings.
Water Systems (14)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| SIOUX CENTER MUNICIPAL WATER DEPARTMENT | 8,231 | 0 |
| ORANGE CITY MUNICIPAL WATER DEPARTMENT | 6,267 | 0 |
| SHELDON WATER DEPARTMENT | 5,512 | 0 |
| SOUTHERN SIOUX COUNTY RURAL WATER | 5,420 | 0 |
| ROCK VALLEY WATER SUPPLY | 4,059 | 0 |
| RURAL WATER SYSTEM #1 | 3,428 | 2 |
| HAWARDEN WATER SUPPLY | 2,700 | 0 |
| HULL WATER SUPPLY | 2,384 | 0 |
| ROCK VALLEY RURAL WATER DISTRICT | 2,230 | 3 |
| ALTON MUNICIPAL WATER DEPARTMENT | 1,248 | 0 |
| BOYDEN MUNICIPAL WATER SUPPLY | 701 | 0 |
| IRETON WATER SUPPLY | 590 | 0 |
| MAURICE MUNICIPAL WATER SUPPLY | 265 | 0 |
| MATLOCK WATER SUPPLY | 74 | 0 |
TRI Facilities (12)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Perdue Foods LLC - Sioux Preme Packing Co. Center Plant | 72.7K lbs |
| 2 | Rosenboon Machine & Tool Inc | 67.9K lbs |
| 3 | Pella Corp Sioux Center Operations | 67.2K lbs |
| 4 | Siouxland Energy Cooperative | 44.5K lbs |
| 5 | Diamond Vogel Inc. | 29.1K lbs |
| 6 | Valley Plating Inc. | 1.5K lbs |
| 7 | Groschopp Inc. | 139 lbs |
| 8 | Kent Nutrition Group Inc | 2 lbs |
| 9 | Gcc-Orange City | 0 lbs |
| 10 | Agropur Inc | 0 lbs |
| 11 | Den Hartog Industries | 0 lbs |
| 12 | Gcc-Sioux Center | 0 lbs |
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Farmers' Mutual Cooperative | Deleted NPL Site | 33.74 |
| Vogel Paint & Wax Co. | NPL Site | 31.45 |
Cities in Sioux (11)
Frequently Asked Questions
What is the environmental risk level in Sioux, Iowa? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.