505 E Central Ave #B - DEF 1 - Plan

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CITY OF SANTA ANA SPECIFICATIONS PROJECT NO.: XX-XXXX PROJECT TITLE 11 Extra erosion and sediment control BMPs shall be available on-site in order to replace failed BMPs or to be implemented during storm events. The Contractor shall mitigate ALL non- stormwater discharges from the construction site, unless granted approval by the AGENCY. The area adjacent to the construction site shall remain free of sediment and shall be swept regularly to be kept clean. 3-12.6.3 Storm Water Pollution Prevention Plan (SWPPP) Add the following to this subsection: If a project has MORE than one-acre of disturbed soil, the following shall apply: Erosivity Waiver: Projects that are smaller than 5 acres, have a rainfall erosivity value (R Value) less than 5, and occur during the dry season (May-September) may qualify for an Erosivity Waiver. The Engineer will determine whether or not a project qualifies for an Erosivity Waiver and will notify the Contractor. The Contractor shall not assume a project qualifies for an Erosivity Waiver without consulting the Engineer. If the Engineer determines a project does qualify for an Erosivity Waiver, the Contractor shall submit an ESCP, in accordance with section 7-8.6.2. In addition, the Contractor shall have a licensed Qualified SWPPP Developer (QSD) prepare and submit an Erosivity Waiver to the Stormwater Multiple Application and Report Tracking System (SMARTS). The AGENCY may link the Contractor’s QSD as a “Data Entry Person” on SMARTS, allowing the Contractor’s QSD to access the project and upload all necessary documents for an Erosivity Waiver. The AGENCY will certify and submit all documents on SMARTS to the Regional Board. In the event a project is delayed and the construction period is longer than first anticipated, or the disturbed land area increases in size, the project may no longer be eligible for an Erosivity Waiver. The Engineer will determine whether or not a project’s Erosivity Waiver is no longer valid and will notify the Contractor. In the event an Erosivity Waiver is no longer valid, the Contractor shall comply with the following requirements: This project has been identified as a Risk Level # Project and shall comply with all requirements outlined in the most current National Pollution Discharge Elimination System (NPDES) General Permit for Stormwater Discharges Associated with Construction and Land Disturbance Activities, hereinafter referred to as the Construction General Permit. The most current Construction General Permit can be found on the State Water Resources Control Board Website here: http://www.swrcb.ca.gov/water_issues/programs/stormwater/constpermits.shtml As part of the permitting process, the Contractor shall administer a SWPPP. The purpose of the SWPPP is to mitigate any pollutants associated with construction activities from entering the Municipal Separate Storm Sewer System (MS4). Any additional work required for compliance with the requirements of the SWPPP shall be performed by the Contractor and full compensation 505 E Central Ave #B11/6/2024