Held by GEM Mobile Treatment Services Inc
SO2 0.28 t/yr, PM10 0.45 t/yr
| Certificate | 1639 |
|---|---|
| Holder of record | GEM Mobile Treatment Services Inc |
| Air district | Bay Area AQMD |
| Issued | 2017-11-28 |
| Reduction site | Gaylord Container Corporation, Antioch, CA |
| Status | Banked — not listed |
| Pollutant | As the district records it |
|---|---|
| SO2 | 0.28 t/yr |
| PM10 | 0.45 t/yr |
| Date | Recorded |
|---|---|
| 2017-11-28 | Issued by the district |
| 2026-10-03 | On the register: ERC Bank Status database (baaqmd.gov), retrieved 2026-10-03 |
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 | 2022 CARB | $10,026 | $51– | 21 |
| PM10 | 2022 CARB | $20,000 | $20,000 | 21 |
*For the CARB reports, every recorded transfer in the district that year, all pollutants. Recent years shown; every recorded year. Sources: CARB 2022 §40709.5 statewide report.
Arithmetic only — this certificate's volume multiplied by the Bay Area median recorded for each pollutant in 2022. Not an appraisal, an offer or a prediction.
| Pollutant | Tons / year | × recorded median | Reference |
|---|---|---|---|
| SOx | 0.28 | $10,026/t | $2,787 |
| PM10 | 0.45 | $20,000/t | $8,960 |
| All priced pollutants | $11,747 | ||
It is already public record in the Bay Area 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.
List 1639 for saleAsk the Exchange about it
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 Bay Area 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 Bay Area AQMD, or its air basin with district board approval (Health & Safety Code §40709.6). District office: (415) 749-5000. The district's transfer steps, form and fee.
ERC Bank Status database (baaqmd.gov), retrieved 2026-10-03 — Bay Area AQMD ERC register. Retrieved 2026-10-03. 425 banked certificates across 161 holders, in tons per year; 35 flagged by their owners as available for sale. PM2.5 is a subset of PM10 and is not added to it. Certificate sums match the district's published totals. 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.