ITEM 5 EXHIBITS A-H - Laserfiche WebLink

Page 27 92. STORMWATER BIORETENTION. (The applicant shall address the following conditions prior to plan approval): a. The drainage network relies on a pump to lift water from the buried pipe network to the at-surface bioretention basin. Section G.1.1 of the Guidance Manual specifically requires the pipe network to completely drain within 72 hours of a storm event. The bioretention pump details meeting Section G.1.1 shall be submitted with the construction documents design for City review and approval. b. Referring to the Guidance Manual, Section 8.1.1 “Design and Sizing Guidelines” as well as the Geotechnical Investigation by Cornerstone Earth Group Section 6.2, the recommended bioretention setback requirement from structures is 10 feet. This recommendation is violated in several areas according to the cross-sections on Sheet C2 of the Vesting Tentative Map. While introducing an impermeable liner within the basin may address soil saturation issues, the liner will not address the loss of soil bearing where the buildings will impose a structural load. This soil bearing issue shall be addressed by the Geotechnical Engineer with the construction documents for City review. 93. WATER SERVICE. Sheet 6 “Preliminary Utility Plan” shows a master water meter and backflow preventer servicing the site. Beyond the backflow preventer, all water mains and submeters shall be private with operation and maintenance to be performed by the homeowner’s association. The property is currently served by a 2” potable water meter (Account 13176-14000-001, Meter #68596527). If a different type of water service is requested, the applicant shall terminate this service with the City’s Utility Billing Division and shall disconnect the water lateral at the main in Black Avenue. Fee credits will be offered for the removed meter when new water services are requested. The City purchases water wholesale from Zone 7 Water Agency. Fees are due to both the City of Pleasanton and Zone 7 for new connections to the pipe network. Said fee amounts appear in the City’s Adopted Master Fee Schedule. For more information about water usage in Pleasanton, refer to Pleasanton Municipal Code Title 14. The City’s ability to provide potable water to the proposed development at sufficient pressure and volume must be confirmed by running a scenario within the City’s Water Master Plan computer model operated by a City-hired consultant. The consultant will run the scenario and then issue a report with their findings. The applicant shall fund this effort and address any discovered network deficiencies that are directly attributable to the development. (Address this condition prior to permit issuance).