Elko, 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 Elko in Nevada · Population: 53,852
TRI sites such as Nevada Gold Mines LLC - Goldstrike Mines Inc; Jerritt Canyon Mine; Nevada Gold Mines Llc- Long Canyon Mine; SDWIS systems such as ELKO CITY OF; GREAT BASIN WATER CO SPRING CREEK; ELY MUNICIPAL WATER DEPARTMENT anchor Elko, NV's EPA extract. Derived burden score 55/100 (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 Elko include JACKPOT WATER SYSTEM; Duck Valley Newtown; MONTELLO WATER SYSTEM, while Nevada Gold Mines LLC - Goldstrike Mines Inc leads reported TRI pounds among local Form R filers. AQS median AQI 23 / peak 113 in 2024.
Burden score 55/100 (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 Elko -- 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 Elko, NV: EPA TRI 2023 reporting year
Same facilities, both years
-55.3%
7 facilities that filed in 2022 and 2023
Whole inventory
-55.3%
211.3 million lb → 94.5 million lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Elko, NV's total reported releases fell from 211.3 million lb in 2022 to 94.5 million lb in 2023, based on EPA TRI filings.
- Elko, NV's land releases fell from 211.0 million lb in 2022 to 94.1 million lb in 2023, based on EPA TRI filings.
- Elko, NV's air releases fell from 84.6 thousand lb in 2022 to 43.1 thousand lb in 2023, based on EPA TRI filings.
- Elko, NV's chemicals reported fell from 40 in 2022 to 36 in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 318 (87%) | 46 | 1 | 113 |
| 2023 | 318 (87%) | 46 | 0 | 74 |
| 2022 | 321 (88%) | 42 | 2 | 149 |
| 2021 | 282 (77%) | 73 | 9 | 156 |
| 2020 | 304 (84%) | 55 | 1 | 169 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Nevada, see the EPA's AirNow.gov.
Water Systems (16)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| ELKO CITY OF | 23,000 | 0 |
| GREAT BASIN WATER CO SPRING CREEK | 9,340 | 0 |
| ELY MUNICIPAL WATER DEPARTMENT | 5,000 | 0 |
| WEST WENDOVER WATER SYSTEM | 4,535 | 0 |
| GREAT BASIN WATER CO SPRING CREEK MHP | 3,640 | 0 |
| WELLS MUNICIPAL WATER DEPARTMENT | 1,300 | 0 |
| JACKPOT WATER SYSTEM | 1,240 | 1 |
| Duck Valley Newtown | 450 | 4 |
| MONTELLO WATER SYSTEM | 287 | 1 |
| LAMOILLE WATER USERS ASSOC | 200 | 1 |
| JARBIDGE WATER SYSTEM | 200 | 1 |
| Duck Valley Owyhee | 150 | 1 |
| TUSCARORA WATER SYSTEM | 72 | 0 |
| South Fork (Te-Moak) | 40 | 15 |
| COLD CREEK MHP | 35 | 0 |
| MOUNTAIN CITY WATER AND SEWER | 30 | 1 |
TRI Facilities (10)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Nevada Gold Mines LLC - Goldstrike Mines Inc | 930.8M lbs |
| 2 | Jerritt Canyon Mine | 4.0M lbs |
| 3 | Nevada Gold Mines Llc- Long Canyon Mine | 2.4M lbs |
| 4 | Nevada Gold Mines LLC - Arturo Mine | 2.4M lbs |
| 5 | Graymont Western US Inc Pilot Peak Lime Production | 109.0K lbs |
| 6 | Midas Project | 42.1K lbs |
| 7 | Hollister Mine | 1.1K lbs |
| 8 | Pilot Thomas Logistics LLC - Carlin Nv | 535 lbs |
| 9 | Joy Global Elko | 20 lbs |
| 10 | Joy Global Elko | 5 lbs |
Cities in Elko (11)
Frequently Asked Questions
What is the environmental risk level in Elko, Nevada? ▼
Are there Superfund sites in Elko? ▼
How many toxic release facilities are in Elko? ▼
What is the air quality in Elko? ▼
Is the drinking water safe in Elko? ▼
What environmental agencies cover Elko? ▼
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.