Deer Creek Wastewater Treatment Plant Sinkhole Repair Project
Summary
SCH Number
2026041254
Public Agency
El Dorado Irrigation District
Document Title
Deer Creek Wastewater Treatment Plant Sinkhole Repair Project
Document Type
NOE - Notice of Exemption
Received
Posted
4/27/2026
Document Description
The El Dorado Irrigation District (District) proposes to stabilize and repair a sinkhole that has occurred at the Deer Creek Wastewater Treatment Plant (DCWWTP). The sinkhole is located within the developed facility adjacent to the sludge dewatering building and was found to be approximately 30-feet deep from the top of pavement with an estimated diameter of 8-feet. The sinkhole was previously identified on the 1996 DCWWTP Phase 2 drawings as an abandoned vertical shaft. It is suspected that the shaft was backfilled with aggregate base during construction of the DCWWTP 1997 Phase 2 Upgrade Project; however, the sinkhole has since expanded. To stabilize and repair the sinkhole, the District proposes to relocate and install approximately 45-linear feet of 6-inch PVC gravity belt thickener pipe, 75-linear feet of 10-inch PVC recycled water pipe, place approximately 70 cubic yards of concrete in the sinkhole, and re-pave over the work area. Stabilization and repair of the facility will take approximately 2 months with crews working Monday through Friday 7:00 am to 5:00 pm. Equipment that will be used for construction will include an excavator, loader or backhoe, dump trucks, paving machines, rollers, concrete trucks, concrete pumps, broom truck, crew trucks and miscellaneous hand tools. Treatment operations at the DCWWTP will not be affected.
Contact Information
Name
Michael C. Baron
Agency Name
El Dorado Irrigation District
Job Title
Environmental Review Analyst
Contact Types
Lead/Public Agency
Phone
Email
Location
Coordinates
Cities
Unincorporated Area - Cameron Park
Counties
El Dorado
Regions
Unincorporated
Cross Streets
Deer Creek and Flying C Road
Zip
95682
Total Acres
40
Parcel #
109-020-003
State Highways
Highway 50
Railways
0
Airports
0
Schools
0
Waterways
Deer Creek
Township
9N
Range
9E
Section
16
Base
Shingle
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1- Existing Facilities (CCR, Title 14, Sec. 15301)
Reasons for Exemption
This project involves the repair of an existing facility involving no expansion of an existing use. None of the exceptions to this exemption, as identified under CCR, Title 14 section 15300.2, apply to this project, including; located in an area of hazardous or critical concern, cumulative impact, significant effect due to unusual circumstances, scenic highways, hazardous waste sites, and historical resources.
County Clerk
El Dorado
Attachments
Notice of Exemption
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