Nevada Gold Mines LLC - Carlin South Area – Emissions Trend

Carlin, NV · 2019–2023 · Parent: Barrick Nevada Holding LLC

This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for Nevada Gold Mines LLC - Carlin South Area, spanning 2019–2023. Each annual total aggregates on-site air emissions, surface-water discharges, land disposal, and off-site transfers reported by the facility under EPCRA Section 313, which requires disclosure whenever a listed chemical is manufactured, processed, or otherwise used above threshold quantities.

Reported releases opened at 38.3M in 2019 and closed at 40.3M in 2023 – a increase of 5.2% over the window. The chart below stacks the four TRI release media (air, water, land, off-site) and overlays the yearly total. The top contributor by cumulative mass is Arsenic compounds at 129.6M, followed by Zinc compounds at 20.8M.

Because TRI figures are estimated, not metered, year-over-year deltas can reflect methodology revisions, ownership changes, or shifts in what a facility classifies as reportable, not only physical emission changes. Treat the trajectory as a disclosure record, and cross-reference with the EPA Enforcement and Compliance History Online (ECHO) system for the fuller regulatory picture on this metal mining facility.

Overall Trend
↑ Increasing (+5.2%)
2019 Total
38.3M lbs
2023 Total
40.3M lbs

Total Releases by Category

Air
Water
Land
Offsite Transfer
09.9M19.7M29.6M39.5M49.3M 20192020202120222023 Pounds Released

Year-over-Year Comparison

Year Total Chemicals YoY Change
2019 38.3M lbs 21 -
2020 45.7M lbs 18 +19.2%
2021 49.3M lbs 19 +7.9%
2022 43.0M lbs 20 -12.9%
2023 40.3M lbs 21 -6.2%

Top Chemicals by Year

Chemical 20192020202120222023 Total
Arsenic compounds 24.0M 25.1M 32.3M 25.5M 22.8M 129.6M
Zinc compounds 3.4M 3.6M 5.2M 5.2M 3.5M 20.8M
Lead compounds - - 4.0M 4.5M 7.5M 16.0M
Manganese And Manganese Compounds 1.6M 2.1M 2.0M 2.1M 1.9M 9.7M
Lead And Lead Compounds 2.7M 4.9M - - - 7.5M
Antimony compounds 753.0K 638.5K 912.6K 982.7K 871.1K 4.2M
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 656.4K 3.2M 74.3K 91.8K 103.7K 4.1M
Vanadium compounds 662.2K 748.6K 782.7K 804.1K 781.1K 3.8M
Mercury And Mercury Compounds 1.1M 1.1M 524.8K 360.9K 392.4K 3.4M
Copper And Copper Compounds 651.9K 760.8K 852.5K 783.2K - 3.0M
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) 290.0K 385.1K 723.9K 727.3K 577.5K 2.7M
Thallium compounds 473.2K 387.1K 539.7K 554.7K 537.0K 2.5M
Cyanide compounds 252.1K 815.6K 576.3K 577.3K 53.9K 2.3M
Selenium compounds 999.9K 1.1M 42.8K 62.3K 16.2K 2.2M
Nickel And Nickel Compounds 608.8K 489.8K 403.9K - - 1.5M

About This Data

Trend data is sourced from the EPA Toxic Release Inventory (TRI). Facilities report annually. Release quantities are self-reported estimates. Year-over-year changes may reflect changes in production, pollution control measures, reporting methodology, or chemical thresholds.

A decrease in reported releases does not necessarily indicate improved environmental performance, as it may reflect production cutbacks, facility closures, or changes in reporting requirements. Similarly, increases may reflect expanded production rather than degraded environmental practices.

Frequently Asked Questions

Is Nevada Gold Mines LLC - Carlin South Area getting cleaner or dirtier?
Based on EPA TRI data from 2019–2023, Nevada Gold Mines LLC - Carlin South Area's total toxic releases have increased by approximately 5%.
What time period does this trend data cover?
This page shows 5 years of EPA Toxic Release Inventory data from 2019–2023. Release quantities are self-reported estimates filed annually by the facility.