Eureka, NV
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 Eureka in Nevada · Population: 1,660
TRI sites such as Nevada Gold Mines LLC - Carlin South Area; Gold Bar Mine; Nevada Gold Energy LLC; SDWIS systems such as CARLIN UTILITIES; EUREKA WATER ASSOCIATION; CRESCENT VALLEY WATER SYSTEM anchor Eureka, NV's EPA extract. Derived burden score 39/100 (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 Eureka include EUREKA WATER ASSOCIATION, while Nevada Gold Mines LLC - Carlin South Area leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 39/100 (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 Eureka -- 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 Eureka, NV: EPA TRI 2023 reporting year
Same facilities, both years
-7.4%
5 facilities that filed in 2022 and 2023
Whole inventory
-7.4%
43.7 million lb → 40.4 million lb, every facility that filed
- Eureka, NV's total reported releases fell from 43.7 million lb in 2022 to 40.4 million lb in 2023, based on EPA TRI filings.
- Eureka, NV's off-site transfers rose from 17.4 thousand lb in 2022 to 28.4 thousand lb in 2023, based on EPA TRI filings.
- Eureka, NV's air releases rose from 51.1 thousand lb in 2022 to 64.8 thousand lb in 2023, based on EPA TRI filings.
- Eureka, NV's land releases fell from 43.6 million lb in 2022 to 40.3 million lb in 2023, based on EPA TRI filings.
Water Systems (5)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CARLIN UTILITIES | 2,500 | 0 |
| EUREKA WATER ASSOCIATION | 450 | 1 |
| CRESCENT VALLEY WATER SYSTEM | 340 | 0 |
| DEVILS GATE WATER SYSTEM GID 2 | 132 | 0 |
| DEVILS GATE GID DISTRICT 1 | 65 | 0 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Nevada Gold Mines LLC - Carlin South Area | 216.7M lbs |
| 2 | Gold Bar Mine | 696.5K lbs |
| 3 | Nevada Gold Energy LLC | 248.1K lbs |
| 4 | Nevada Gold Mines- Emigrant Mine | 56.2K lbs |
| 5 | Ruby Hill Mining Co LLC | 3.2K lbs |
Cities in Eureka (2)
Frequently Asked Questions
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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.