Former Vallejo Manufactured Gas Plant Site

2 Documents in Project

Summary

SCH Number
2018102054
Lead Agency
Toxic Substances Control, Department of (Department of Toxic Substances Control)
Document Title
Former Vallejo Manufactured Gas Plant Site
Document Type
NOD - Notice of Determination
Received
Posted
9/13/2019

Document Description
The former Vallejo manufactured gas plant (MGP) site is comprised of Operable Unit 1 (OU-1) and Operable Unit 2 (OU-2) Both properties are privately owned and currently leased by Pacific Gas & Electric Company (PG&E). The remediation of the OU-1 site involves soil excavation and off-site disposal of impacted soil at permitted disposal facilities and backfilling with clean imported backfill material to create a clean soil cap; transportation of Portland cement and sodium persulfate to the OU-1 site for soil stabilization; stabilization of deeper soil using in situ chemical oxidation coupled with in situ soil stabilization (ISCO/ISS); institutional controls that would include land use covenants restricting certain land uses, including restricting the use of on-site groundwater, cap-maintenance requirements, and a restriction on activities that could compromise the integrity of the cap; and groundwater monitoring which includes groundwater sampling of new groundwater monitoring wells; It is anticipated that the planned lSCO/ISS would address vapor intrusion issues. See NOD for full details.

Contact Information
Megan Indermill
Department of Toxic Substances Control
Site Mitigation and Restoration Program 700 Heinz Avenue
Berkely, CA 96710

Phone : (510) 540-3972

Location

Cities
Vallejo
Counties
Solano
Other Location Info
(Operable Unit 1) - Intersection of Curtola Parkway and Sonoma Boulevard (Operable Unit 2) - 2226 & 240 Curtola Parkway Vallejo, California 94590

Notice of Determination

Approving Agency
Department of Toxic Substances Control
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
Department of Toxic Substances Control Site Mitigation and Restoration Prog am 700 Heinz Ave Berkeley, CA 96710

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
No
(4) A mitigation reporting or monitoring plan was adopted for this project
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes

Attachments

Notice of Determination
2018102054   PDF 2284 K

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