Redwood Park Tank Project - Initial Study – Mitigated Negative Declaration

Summary

SCH Number
2020070570
Lead Agency
San Lorenzo Valley Water District
Document Title
Redwood Park Tank Project - Initial Study – Mitigated Negative Declaration
Document Type
MND - Mitigated Negative Declaration
Received
Project Applicant
Carly Blanchard
Present Land Use
R-1-15 (Single-Family Residential)

Document Description
The Redwood Park Tank Project (“proposed project” or “project”) consists of the construction and operation of a new 125,000-gallon bolted steel water storage tank on a 6,530 square-foot parcel (Assessor’s Parcel Number 078-233-05) located northwest of the intersection of Country Club Drive and Dundee Avenue in Ben Lomond, California. The project site is currently undeveloped. On the eastern side of the site, a cut slope descends to Dundee Avenue. A wooden fence stands approximately three feet north of the proposed tank location. The proposed footprint of the new 30-foot diameter water tank is clear of trees and thickly vegetated with ivy. A grove of native coast redwood and mixed hardwood species is located approximately 18 feet south of the proposed tank location. The proposed project would require the removal of five trees: one small, suppressed coast redwood and four tanbark oak trees. Dead trees, branches, and secondary trunks would also be removed from the existing grove to improve grove health. The project would also involve post-construction revegetation of the site with five fruit and nut trees and three blackberry bushes. The project would construct the following infrastructure at the project site: ? 125,000-gallon bolted steel water storage tank (30 feet in diameter, 24 feet in height) ? Two water pumps, housed in an 80 square-foot pumping station made from concrete masonry and fire-resistant roofing ? Baserock surfaced or paved driveway ? 400 linear feet of 8-inch high-density polyethylene (HDPE) water pipeline connecting the project site to the “Swim Water Storage Tanks” site on Country Club Drive ? Standby backup generator and propane tank for emergency power Construction of the project is estimated to commence in August 2020 and last 12 months. Before commencement of construction, vegetation and roots would be cut back from the building area. Construction equipment could include an excavator, tractor box scraper, and bobcat. Construction activities would include soil excavation for ring footings, cut-and-fill grading to construct a level building pad for the water tank and apron, and re-densification of soil under the tank pad. Excavation would be up to a maximum of four feet in depth. A six-foot high fence would be constructed around the new water tank to partially block it from public view. Fencing material would be a combination of wood and chain link, with wood serving as a visual barrier. The new water pipeline would be located entirely underground within the paved roadway on Country Club Drive. Pipeline construction would take approximately three weeks. Operation and maintenance activities would be conducted by SLVWD employees, and would require approximately one trip per month to the project site. The pump station would operate up to three hours per day. The proposed project would require approximately 22,000 kilowatt hours (kWh), or 22 megawatt-hours (MWh) of electricity annually. The project also includes a liquid propane gas (LPG) generator for emergency backup energy supply.

Contact Information
Carly Blanchard
San Lorenzo Valley Water District
13060 HWY 9
Boulder Creek, CA 95006

Phone : (831) 430-4639
cblanchard@slvwd.com

Location

Cities
Ben Lomond
Counties
Santa Cruz
Regions
Northern California Unincorporated
Cross Streets
Country Club Drive and Dundee Avenue
Zip
95005
Parcel #
078-233-05
State Highways
HWY 9
Other Information
6,530 square-foot parcel

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Water storage infrastructure.)(n/a MGD)
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Forest Land/Fire Hazard Geologic/Seismic Greenhouse Gas Emissions Minerals Noise Population/Housing Balance Public Services Recreation/Parks Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Tribal Cultural Resources Vegetation Water Quality Water Supply Land Use Other
Reviewing Agencies
California Air Resources Board California Department of Conservation California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Forestry and Fire Protection California Department of Parks and Recreation California Department of Transportation, District 4 California Department of Water Resources California Highway Patrol California Native American Heritage Commission California Natural Resources Agency California Public Utilities Commission California Regional Water Quality Control Board, Central Coast Region 3 Department of Toxic Substances Control Office of Historic Preservation State Water Resources Control Board, Division of Water Rights State Water Resources Control Board, Divison of Financial Assistance

Attachments

Environmental Document
NOI_Redwood Tank_SLV   PDF 652 K Redwood Park Tank Public Review Draft IS-MND_with appendices_revised   PDF 22836 K Summary_Form_for_Document_Submittal_SLVWD_REDWOODPARK   PDF 576 K
NOC
NOC_SLV_REDWOODPARK   PDF 265 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

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