Big Canyon Well Final Design Project

2 Documents in Project


SCH Number
Lead Agency
Callayomi County Water District
Document Title
Big Canyon Well Final Design Project
Document Type
MND - Mitigated Negative Declaration

Document Description
The proposed project would install a new well (Big Canyon well) to replace the District's existing Diamond-D well as the primary source of water for the area. Historically, the Diamond-D well has been the primary source of water; however, the district seeks to provide a more reliable water supply for the existing and anticipated population of Middletown by replacing the Diamond-D well with the proposed Big Canyon well and associated infrastructure. The proposed project would include a new well and concrete building pad; a paved access road and 20-ft access easement; a pump house around the well with an emergency generator and disinfection system; an approx 10,000 sf parking area; and the installation of approx 2,600 ft of an 8-in water main, part of which would be hung off the existing bridge over Putah Creek.

Contact Information
John Hammer
Callayomi County Water District
21282 Stewart St.
Middletown, CA 95461



38°45'45.9"N 122°37'10.7"W
Cross Streets
Big Canyon Rd, Knowles Lane
Total Acres
Parcel #
State Highways
hwy 175, 29
Middletown HS, Minnie
Putah Creek, Harbin Creek, Dry Creek, St. Helena Creek
Other Location Info

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (well/pipeline Type)
Local Action
Use Permit
Project Issues
Cumulative Effects Landuse Growth Inducing Wetland/Riparian Water Supply Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Solid Waste Sewer Capacity Schools/Universities Recreation/Parks Public Services Population/Housing Balance Noise Minerals Geologic/Seismic Forest Land/Fire Hazard Flood Plain/Flooding Drainage/Absorption Biological Resources Archaeologic-Historic Air Quality Agricultural Land Aesthetic/Visual
Reviewing Agencies
Regional Water Quality Control Bd., Region 5 (Sacramento) California Department of Parks and Recreation California Highway Patrol Caltrans, District 1 Central Valley Flood Protection Board Delta Protection Commission Delta Stewardship Council Department of Fish and Wildlife, Region 2 Department of Water Resources Native American Heritage Commission Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Drinking Water, District 3 State Water Resources Control Board, Division of Water Rights
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