Planning Commission meeting agenda packet 7-9-25

Page 22 95. SURVEY MONUMENTS FOR HORIZONTAL CONTROL: Final maps shall include sufficient durable survey monuments to allow the subdivision to be retraced in conformance with Pleasanton Municipal Code §19.24.220. Setting of monuments shall be in accordance with California Government Code §66495-66498. The surveyor shall give notice to the City Engineer when final monuments have been set, and when payment for said work has been received from the subdivider. (Address this condition prior to acceptance of improvements). 96. THIESSEN STREET RIGHT-OF-WAY: According to the Grant Deed recorded on 4-07-2004 (Series No. 2004146924), the right-of-way line on Thiessen Street at Lot 22 and 24 widens for no current purpose. The applicant shall ask the City to vacate this widened area such that the width of Thiessen Street is consistent from end to end. The procedure prescribed by California Streets and Highways Code §8330 et seq. can be followed since the original purpose for the widened area was never utilized by the public. (Address this condition prior to approval of the subdivision map) Utilities 97. STORMWATER HYDRAULICS: The City’s storm drainage network has been designed in accordance with the Alameda County Hydrology and Hydraulics Manual published by the Alameda County Flood Control & Water Conservation District. Said manual is available for download at: https://acfloodcontrol.org/the-work-we-do/the-work-we-do-hydrology-manual/ The City is located in Zone 7, and its storm drainpipe network is considered a secondary facility. Any connections to, additions, or upgrades to the City’s pipe network shall be designed in accordance with the manual. Calculations submitted for review/approval shall be presented in a format consistent with the “Calculation Form – District Rational Method” available in the manual. The calculations shall demonstrate adequate freeboard given the design storm event assuming all bioretention areas are overflowing. Said calculations shall be prepared, stamped, and signed by a California-licensed civil engineer. (Address this condition prior to plan approval) 98. SANITARY SEWER DESIGN STANDARDS: Connections to the City’s sanitary sewer network shall conform to Pleasanton Municipal Code Title 15 “Sewerage”. All buildings inhabited by human beings which are not more than 250 feet from the City’s sewer network shall be connected. All premises, parcels, and/or lots shall have independent connections to the City’s sewer network except under the following conditions: • If a private on-site treatment system has been authorized by both the City and Alameda County Department of Environmental Health. • If multiple premises are located on a single parcel or lot which cannot be subdivided and are all under one ownership. The public sanitary sewer system shall be designed to satisfy the following minimum standards: a. Minimum Manning Coefficient (n) within the pipe = 0.013 b. Minimum flow velocity = 2 feet per second at least once per day c. Maximum flow velocity = 10 feet per second d. Maximum depth of flow to pipe diameter (d/D) = 0.75 for dry weather flow conditions