Taaffe/Elena/Moody Roads Water Main Replacement Project

2 Documents in Project


SCH Number
Lead Agency
Purissima Hills Water District
Document Title
Taaffe/Elena/Moody Roads Water Main Replacement Project
Document Type
MND - Mitigated Negative Declaration
Project Applicant
Purissima Hills Water District
Present Land Use
Road right-of-way and Elena tank site - Residential

Document Description
The project includes the replacement of approximately 9,000 linear feet of existing water mains along Elena Road, Taaffe Road, Vista Del Valle Court, Old Snakey Road, and Moody Road, in the town of Los Altos Hills. The majority of the proposed mains to be replaced are located within existing road right-of-way. A short segment is proposed as a "cross-country" route across open land owned by the District to connect to the Elena Pump Station. The purpose of the project is to allow improved water flow from the Elena Pump Station to the Altamont tanks and will allow for overall system reliability in the event of an earthquake. Portions of the water main segments to be replaced are made of asbestos concrete, which is brittle and subject to severe damage during seismic events. Other segments consisting of cast iron pipe will also be updated to ductile iron pipe for increased reliability.

Contact Information
Patrick Walter
Purissima Hills Water District
26375 Fremont Road
Los Altos Hills, CA 94022

Phone : (650) 948-1217


27°22'02"N 122°08'36"W
Los Altos Hills
Santa Clara
Cross Streets
Elena Road, Taaffe Road, Vista Del Valle Court, and Moody Roads
Total Acres
Parcel #
Town roads and 182-13-020
State Highways
Foothill College, Los Altos School District
Adobe Creek, Deer Creek

Notice of Completion

Development Type
Water Facilities (water main replacements)
Local Action
Other Action water main utility installation
Project Issues
Aesthetic/Visual Air Quality Archaeologic-Historic Biological Resources Geologic/Seismic Noise Soil Erosion/Compaction/Grading Traffic/Circulation Tribal Cultural Resources Vegetation Water Quality
Reviewing Agencies
California Department of Conservation California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Department of Transportation, District 4 California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Department of Water Resources Office of Emergency Services, California Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Drinking Water, District 17 State Water Resources Control Board, Division of Water Rights State Water Resources Control Board, Divison of Financial Assistance


Environmental Document
Declaration   PDF 140 K NOI   PDF 731 K PHWD NOI Taaffe_Elena Mains Project_County filing   PDF 2264 K PHWD WaterMainReplacement_ISMND_20190812_HardCopyPrint   PDF 9321 K Summary_Form_for_Document_Submittal - Taaffe Elena Moody Roads Water Main Replacement Project   PDF 161 K
NOC   PDF 1786 K

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