10 certificates (AQ001584 … AQ001684) · Facility: Alhambra, Covina, El Monte, La Canada Flintridge, Pasadena, Temple City, Walnut
ROG / VOC 24 lb/day
Home / District guides / South Coast AQMD / Unocal Corporation
| Holder of record | Unocal Corporation | ||||||
|---|---|---|---|---|---|---|---|
| Certificates | 10 certificates (AQ001584 … AQ001684) | ||||||
| Source of reductions | Facility: Alhambra, Covina, El Monte, La Canada Flintridge, Pasadena, Temple City, Walnut | ||||||
| Air district | South Coast AQMD | ||||||
| Pollutants banked |
The district records these volumes in lb/day; the tons-per-year column is a straight conversion (lb/day × 365 ÷ 2,000; lb/qtr × 4 ÷ 2,000) for comparison only. | ||||||
| Register source | ERC & STERC Active List, July 2026 · district registry page | ||||||
| Status | Banked — not listed |
| Certificate | Issued | Pollutant | Amount (lb/day) |
|---|---|---|---|
| AQ001584 | 1996-04-26 | ROG | 2 |
| AQ001597 | 1996-04-26 | ROG | 3 |
| AQ001621 | 1996-04-26 | ROG | 2 |
| AQ001623 | 1996-04-26 | ROG | 2 |
| AQ001625 | 1996-04-26 | ROG | 3 |
| AQ001626 | 1996-04-26 | ROG | 3 |
| AQ001636 | 1996-04-26 | ROG | 2 |
| AQ001650 | 1996-04-26 | ROG | 3 |
| AQ001668 | 1996-04-26 | ROG | 2 |
| AQ001684 | 1996-04-27 | ROG | 2 |
Source: ERC & STERC Active List, July 2026 — South Coast AQMD, retrieved 2026-10-02.
It is already public record in the South Coast register. Listing it on the Exchange is free, commits you to nothing, and puts it in front of the permit applicants and consultants searching this page. We verify the certificate against the register before anything goes live, and inquiries route straight to you or your broker.
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Prices per ton recorded by the district under Health & Safety Code §40709.5:
| Pollutant | Year | Median $/t | Range | Trades* |
|---|---|---|---|---|
| ROG / VOC | 2024 district report | $23,000 avg | $3,000– | 19 |
| ROG / VOC | 2023 CARB | $22,000 | $12,000– | 9 |
| ROG / VOC | 2022 CARB | $21,875 | $314– | 24 |
*For the CARB reports, every recorded transfer in the district that year, all pollutants; for South Coast 2024, transfers with a stated price. Recent years shown; every recorded year. Sources: South Coast AQMD CY2024 §40709.5 report · CARB 2023 §40709.5 statewide report · CARB 2022 §40709.5 statewide report.
Arithmetic only — the recorded volume multiplied by the South Coast median price recorded for each pollutant in 2022–2024, shown as a range because the medians moved between years. Not an appraisal, an offer, or a prediction; actual bids depend on the buyer's permit deadline, the lot size, how many trades the median rests on, and what else is available in the district.
| Pollutant | Volume | × recorded median | Reference |
|---|---|---|---|
| ROG / VOC | 4.38 t | $21,875– | $95,813– |
The buyer and holder agree a price privately. The transfer package — the holder's authorization, the purchase agreement, and the district's transfer forms — goes to South Coast AQMD, which verifies the banked reductions, records the transfer, and re-issues the certificate (or the remaining balance) in the buyer's name. Credits are generally usable only inside South Coast AQMD, or its air basin with district board approval under Health & Safety Code §40709.6. District office: (909) 396-2000. District ERC program page.
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