Galt Wastewater Treatment Plant Outfall and Effluent Flow Meter Project

4 Documents in Project

Summary

SCH Number
2006122015
Lead Agency
City of Galt
Document Title
Galt Wastewater Treatment Plant Outfall and Effluent Flow Meter Project
Document Type
NOD - Notice of Determination
Received
Posted
1/23/2007
Present Land Use
Wastewater Treatment Plant GP: Public/Quasi Public (PQ) Z: PQ

Document Description
The proposed project would replace and extend an existing outfall near the location of the proposed effluent meter in order to avoid installing two different meters. Currently, two outfalls discharge water from the City of Galt storage reservoir into an unnamed seasonal drainage, which flows into Laguna Creek. One of the outfalls delivers water from the cascade aerator. The other outfall is a drain directly from the reservoir, used when the water level in the reservoir falls below the level of the cascade aerator. An 8-foot separation exists between the two outfall structures. In order to accurately meter the flow from both outfalls, the two pipelines would be connected with a "T" within a new catch basin structure, and a 16-inch diameter pipeline would be extended about 31 feet into the unnamed seasonal drainage. The flow meter would be installed about 6 feet "downstream" from the catch basin, and an elevation head would be constructed on the far side of the flow meter in order to keep the meter constantly full to provide accurate measurements. From that point, the pipeline would extend another 30 feet, for a total of about 61 feet of pipeline, to its point of final discharge to the seasonal drainage. The pipeline extension would involve pouring a 6-foot wide concrete apron in the existing drainage swale to support the weight of the catch basin, meter, and elevation head. The concrete apron would have 3-foot gravel "shoulders" on each side for a total width of 12 feet of fill material. The last 30 feet of the pipeline extension would be on a 6-foot wide gravel bed in the drainage swale. The purpose of the final 30-foot pipe extension is to discharge the effluent away from the new concrete slab and the junction box in order to minimize saturating the soil underneath the slab, which could cause significant settlement of the slab and affect the meter readings.

Contact Information
Sandra Kiriu
City of Galt
Lead/Public Agency
P.O. Box 97 495 Industrial Drive
Galt, CA 95632

Phone : (209) 366-7230

Location

Cities
Galt
Counties
Sacramento
Cross Streets
Twin Cities Road / Sargent Avenue
Zip
95632
Total Acres
~ 1
Parcel #
148-0010-053
State Highways
99
Railways
UP mainline
Schools
McGee Correctional Training Facility and multiple public schools
Waterways
Deadmans Gulch, Laguna Creek, Cosumnes River
Township
5N
Range
6W
Section
9
Base
MDBM

Notice of Determination

Approving Agency
City of Galt
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
City of Galt

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
Yes
(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
No

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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