| 1 | Calexico Airport |  Imperial County Department of Toxic Substance and Comite Civico del Valle | | |
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| 2 | East Birch Street and Andrade Avenue | Imperial County Department of Toxic Substance and Comite Civico del Valle | | |
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| 3 | Calexico North | Imperial County Department of Toxic Substance and Comite Civico del Valle | | |
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| 4 | Housing Authority East | Imperial County Department of Toxic Substance and Comite Civico del Valle | | |
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| 5 | Calexico - Ethel Street |  Imperial County Air Pollution Control District (ICAPCD)  California Air Resources Board (CARB) | | |
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