SU0011768 - Laserfiche WebLink

Home Browse Search

other storm drain inlets and decontaminators before, during, and after construction. In essence, in perpetuity. 1) Project applicant shall develop and submit a Project Storm water Plan that identifies the methods to be employed to reduce or eliminate storm water pollutant discharges through the construction, operation and maintenance of source control measures, low impact development design, site design measures, storm water treatment control measures, and hydro modification control measures. m) Project applicant shall develop and submit an Operations and Maintenance Plan that identifies the operations, maintenance, and inspection requirements of all storm water treatment and baseline hydro modification control measures identified in the approved Project Storm Water Plan. MHCSD approval of the preliminary Operations and Maintenance Plan is precedent to issuance of any building, grading, or construction permits. MHCSD- approval of the final Operations and maintenance Plan and recordation of the Maintenance Access Agreemrent is precedent to issuance of the Certificate of Occupancy and release of Performance Bonds. n) The Phase II Permit (Provision E.12.f) requires that the post-construction storm water runoff flow rate not exceed the estimated pre-project flow rate for the 2-year, 24-hour design storm event. o) Maintenance condition shall be determined through a self-certification program where MHCSD require annual reports from authorized parties demonstrating proper maintenance and operations. The developer shall sign an agreement with MHCSD for Storm Water Treatment System Access and Maintenance. This agreement will be transferred to the future owners. p) The Project Storm Water Plan must include the results of the hydro modification routing modeling and demonstrate that the project meets the hydro modification requirements. q) Hydrologic routing modeling (e.g., USEPA's Storm Water Management Model [SWMM]) must be conducted to calculate peak storm water runoff response time and peak project storm water runoff rate for the entire project site for the pre-and post-construction conditions.The results of the model are then used to design hydro modification control measures (e.g., detention basins, wet ponds)to mitigate and meet the hydro modification design storm event criteria. r) Runoff from non-residential areas shall be pretreated on-site prior to discharge into the MHCSD public storm water collection system. s) Maintenance condition shall be determined through a self-certification program where MHCSD require annual reports from authorized parties demonstrating proper maintenance and operations. t) The project shall include on-site fire hydrants. u) Applicant shall apply and obtain an Encroachment permit from the MHCSD-prior to any work commencing within the public right-of-way. v) Applicant shall submit proof of PG&E clearance via written correspondence to the MHCSD in order to construct proposed improvements within the PG&E easement area. w) Please confirm with the county that the on-site landscaping and architecture is being reviewed for consistency with the Commercial, Office and Industrial Design Manual. 7) Oliver John (Jerry Gonsalves, 916-952-4128) See attached memo dated August 21, 2018. PA-1800005 (SA) Conditions of Approval 9