Held by Olduvai Gorge, LLC
SOx 6 lb/day
Home / District guides / South Coast AQMD / Olduvai Gorge, LLC / AQ009630
| Certificate | AQ009630 |
|---|---|
| Holder of record | Olduvai Gorge, LLC |
| Air district | South Coast AQMD |
| Issued | 2009-04-09 |
| Source of reductions | Facility: Diamond Bar |
| Status | Banked — not listed |
| Pollutant | As the district records it | ≈ tons / year |
|---|---|---|
| SOx | 6 lb/day | 1.1 |
The tons-per-year column is a straight conversion for comparison only (lb/day × 365 ÷ 2,000; lb/qtr × 4 ÷ 2,000; lb/yr ÷ 2,000). The district's own figure is the one in the middle column.
| Date | Recorded |
|---|---|
| 2009-04-09 | Issued by the district; title changed with a recorded purchase price of $50,000 per lb/day (≈ $273,973 per ton/yr) |
| 2026-10-02 | On the register: ERC & STERC Active List, July 2026 |
South Coast records the price paid when a certificate changes title, in dollars per lb/day of credit. 1 lb/day = 0.1825 tons per year.
Changes between register editions — transfers, partial use, retirement — are added here as each new edition is ingested. All register changes.
| Pollutant | Year | Median $/t | Range | Trades* |
|---|---|---|---|---|
| SOx | 2024 district report | $327,000 avg | $327,000 | 1 |
| SOx | 2022 CARB | $1,191 | $1,190– | 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 2022 §40709.5 statewide report.
Arithmetic only — this certificate's volume multiplied by the South Coast median 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.
| Pollutant | Tons / year | × recorded median | Reference |
|---|---|---|---|
| SOx | 1.1 | $1,191– | $1,304– |
It is already public record in the South Coast register. Listing it on the Exchange is free and commits you to nothing; we verify it against the register before anything goes live, and inquiries route to you or your broker.
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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 its remaining balance, in the buyer's name. Credits are generally usable only inside South Coast AQMD, or its air basin with district board approval (Health & Safety Code §40709.6). District office: (909) 396-2000. The district's transfer steps, form and fee.
ERC & STERC Active List, July 2026 — South Coast AQMD ERC register. Retrieved 2026-10-02. 760 ERC certificates across 358 holders; 202 short-term (STERC) certificates excluded from the banked inventory. 167 ERCs carry a district-recorded purchase price in $/lb/day. Holder names and certificate numbers are public district records; holder contact details are never published here. See something wrong? Tell us and we check it against the district's file.