Caribou, ID
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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Caribou in Idaho · Population: 7,118
TRI sites such as P4 Production LLC; Itafos Conda LLC; SDWIS systems such as SODA SPRINGS CITY OF; GRACE CITY OF; BANCROFT CITY OF; NPL sites such as Kerr-McGee Chemical Corp. (Soda Springs Plant); Monsanto Chemical Co. (Soda Springs Plant) anchor Caribou, ID's EPA extract. Derived burden score 47/100 (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 Caribou include GRACE CITY OF; BANCROFT CITY OF; VALLEY VIEW WATER ASSN, while P4 Production LLC leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 47/100 (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 Caribou -- 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 Caribou, ID: EPA TRI 2023 reporting year
Same facilities, both years
-8.6%
2 facilities that filed in 2022 and 2023
Whole inventory
-8.6%
5.1 million lb → 4.7 million lb, every facility that filed
- Caribou, ID's total reported releases fell from 5.1 million lb in 2022 to 4.7 million lb in 2023, based on EPA TRI filings.
- Caribou, ID's water releases rose from 26 lb in 2022 to 507 lb in 2023, based on EPA TRI filings.
- Caribou, ID's chemicals reported fell from 29 in 2022 to 26 in 2023, based on EPA TRI filings.
- Caribou, ID's land releases fell from 4.9 million lb in 2022 to 4.4 million lb in 2023, based on EPA TRI filings.
Water Systems (8)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| SODA SPRINGS CITY OF | 3,111 | 0 |
| GRACE CITY OF | 920 | 2 |
| BANCROFT CITY OF | 350 | 1 |
| BAILEY CREEK PROPERTY OWNERS ASSN | 250 | 0 |
| TROUT CREEK CULINARY WATER INC | 90 | 0 |
| VALLEY VIEW WATER ASSN | 35 | 1 |
| WHISKEY CREEK WATER USERS | 35 | 0 |
| EVERGREEN HEIGHTS SUBD | 25 | 0 |
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | P4 Production LLC | 24.5M lbs |
| 2 | Itafos Conda LLC | 3.4M lbs |
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Kerr-McGee Chemical Corp. (Soda Springs Plant) | NPL Site | 51.91 |
| Monsanto Chemical Co. (Soda Springs Plant) | NPL Site | 54.77 |
Cities in Caribou (3)
Frequently Asked Questions
What is the environmental risk level in Caribou, Idaho? ▼
Are there Superfund sites in Caribou? ▼
How many toxic release facilities are in Caribou? ▼
What is the air quality in Caribou? ▼
Is the drinking water safe in Caribou? ▼
What environmental agencies cover Caribou? ▼
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.