Sumitomo Electric Interconnect Products Inc – Emissions Trend
San Marcos, CA · 2019–2023
This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for Sumitomo Electric Interconnect Products Inc, 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 84.3K in 2019 and closed at 71.6K in 2023 – a decrease of 15.1% 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 Ethylene glycol at 393.7K.
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 chemicals facility.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Sumitomo Electric Interconnect Products Inc's total reported releases fell from 99.9 thousand lb in 2022 to 71.6 thousand lb in 2023, based on EPA TRI filings.
- Sumitomo Electric Interconnect Products Inc's off-site transfers fell from 24.9 thousand lb in 2022 to 1.4 thousand lb in 2023, based on EPA TRI filings.
- Sumitomo Electric Interconnect Products Inc's air releases fell from 75.0 thousand lb in 2022 to 70.2 thousand lb in 2023, based on EPA TRI filings.
Total Releases by Category
Year-over-Year Comparison
| Year | Total | Chemicals | YoY Change |
|---|---|---|---|
| 2019 | 84.3K lbs | 1 | - |
| 2020 | 55.3K lbs | 1 | -34.4% |
| 2021 | 82.5K lbs | 1 | +49.1% |
| 2022 | 99.9K lbs | 1 | +21.0% |
| 2023 | 71.6K lbs | 1 | -28.3% |
Top Chemicals by Year
| Chemical | 2019 | 2020 | 2021 | 2022 | 2023 | Total |
|---|---|---|---|---|---|---|
| Ethylene glycol | 84.3K | 55.3K | 82.5K | 99.9K | 71.6K | 393.7K |
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
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Read our methodology - how this data is sourced, computed, and verified.