Valley Pump Station Project
Summary
SCH Number
2021090251
Public Agency
Zone 7 Water Agency
Document Title
Valley Pump Station Project
Document Type
NOE - Notice of Exemption
Received
Posted
9/14/2021
Document Description
Zone 7 Water Agency (Zone 7) delivers safe, reliable, efficient, and sustainable treated drinking water to retailers serving over a quarter million people in the cities of Pleasanton, Livermore, Dublin, and the Dougherty Valley area. Zone 7 source water consists of surface water and groundwater. One reservoir and ten groundwater wells are located on the west side of the system, and two surface water treatment plants, Del Valle Water Treatment Plant (DVWTP) and Patterson Pass Water Treatment Plant (PPWTP), are located on the east.
During drought periods, the system depends almost solely on groundwater to meet daily demands that range between 32 million gallon per day (MGD) to 42 MGD. The additional pressures required to convey water to near DVWTP and PPWTP on the east side exceed the rated system pressures of certain well stations, which would result in system leaks and ruptures. In 2014, Zone 7 and Advanced Hydro Engineering completed the study, Modeling Results for Proposed Intermediate
Pump Station (2014 Study), which demonstrated that adding an intermediate pump station would alleviate the issue of excessive facility pressure. Figure 1 illustrates the configuration of the overall system with the added Valley Pump Station.
The new pump station will decrease the transmission system pressure in the wellfield zone (west side) of our service area. This decreased pressure will allow higher water production from our existing wells while also reducing stress on equipment and components. The Valley Pump Station is planned to be operated continuously for system recirculation to improve water quality.
Contact Information
Name
Elke Rank
Agency Name
Zone 7 Water Agency
Contact Types
Lead/Public Agency
Phone
Email
Location
Coordinates
Cities
Pleasanton
Counties
Alameda
Regions
Citywide
Cross Streets
3100 Valley Avenue (Valley @ Stanley Blvd)
Zip
94566
Total Acres
1.9
Jobs
1
Parcel #
946-1251-29
State Highways
n/a
Railways
n/a
Airports
n/a
Schools
n/a
Waterways
n/a
Township
3S
Range
1E
Base
MDBM
Other Location Info
Zone 7 owned parcel
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301
Reasons for Exemption
• There will be minimal native ground disturbance; the site has previously been graded, developed, and partially paved.
• The project will be completed in approximately nine months and during normal working hours and will have minimal construction-related nuisances to local residents, businesses, or recreational areas, such as disruptions to traffic and increased noise or dust, etc. All work will take place on Zone 7 owned property which is considered previously disturbed, so impacts will be minimal.
• Standard best management practices will be employed during construction to reduce the potential for common construction nuisances including dust, noise, and traffic.
• No impacts to sensitive habitat or wildlife are expected.
• Pre-construction biological surveys will be performed as needed.
• There will not be any cumulative impacts because there are no planned successive projects of the same type and in the general same place, over time.
• There is not a reasonable possibility that the project could result in a significant impact
Exempt Status
Categorical Exemption
Type, Section or Code
15303
Reasons for Exemption
Construction and location of limited numbers of new, small facilities or structures.
County Clerk
Alameda
Attachments
Notice of Exemption
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