Alturas Wastewater Treatment Plant (WWTP) Upgrade and Improvement Project (Project); SRF Project No. C-06-4632-110
3 Documents in Project
Summary
SCH Number
2005122104
Lead Agency
City of Alturas
Document Title
Alturas Wastewater Treatment Plant (WWTP) Upgrade and Improvement Project (Project); SRF Project No. C-06-4632-110
Document Type
NOD - Notice of Determination
Received
Posted
6/20/2007
Present Land Use
Wastewater Treatment Plant site General Plan - "urban"
Document Description
The proposed project will upgrade the existing comminuter to an influent sewage grinder in the Headworks; include improvements to the primary clarifier; upgrade the trickling filter media with high efficiency plastic media to improve the BOD removal efficiency to meet the 17.0 mg/L average daily concentration and the Total Suspended Solids 12.9 mg/L average daily concentration. The proposed project will raise the trickling filter block walls to increase the filter bed capacity and replace the underdrain system. The proposed project will upgrade the effluent filter pumps and controls to variable frequency drive pumps; add a secondary clarifier and splitter structure to better control the solids concentration and improve the disinfection efficiency; and double the size of the chlorine contact chamber to provide adequate contact time. The proposed project will include the installation of concrete sludge drying beds with an underdrain system to comply with the current policies of the Central Valley Regional Water Board; a new Operations Building; slip-lining 2,400 lineal feet of the collection system to reduce infiltration and inflow; and upgrading the collection system lift stations at 4th Street, 8th Street, and 12th Street with submersible pumps to improve operational efficiency.
Contact Information
Name
Kari Schumaker
Agency Name
State Water Resources Control Board
Contact Types
Lead/Public Agency
Phone
Location
Cities
Alturas
Counties
Modoc
Cross Streets
North West Street; Westside Road
Zip
96101
Total Acres
24
Parcel #
022-130-11
State Highways
299; 395
Railways
Union Pacific
Airports
Alturas Municipal
Schools
Modoc Junior High,Alturas Elementary,Werner High
Waterways
Pit River; North Fork Pit River; South Fork Pit River
Township
42N
Range
12E
Section
14
Base
MDBM
Notice of Determination
Approving Agency
State Water Resources Control Board
Approving Agency Role
Responsible Agency
Approved On
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
N/A
(6) Findings were made pursuant to the provisions of CEQA
Yes
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.