Section A-8 (PDF)
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SECTION A-8, CONSTRUCTION A-8.0 CONSTRUCTION COMPONENT The construction component of this plan is composed of the following elements: 1. Section A-8.1, Program Summary 2. Section A-8.2, Model Construction Program 3. Section A-8.3, Education and Training A-8.1 PROGRAM SUMMARY A-8.1.1 Program Overview Construction and grading activities are a potential source of pollutants in all phases of execution. The following sections present a detailed set of guidelines to prevent or minimize the impacts of urban runoff generated by construction activities within the City of Lake Forest on receiving water bodies. The City of Lake Forest has key staff responsible for overseeing, implementing, and enforcing the program. These staff members are identified in Figure A-8.1 below. Figure A-8.1 Development Services Department Public Works Department Building Official Water Quality Specialist Building & Safety Inspectors Building Permit Technician Building Technician City of Lake Forest A-8-1 December 16, 2010 Local Implementation Plan (LIP) Construction SECTION A-8, CONSTRUCTION The following section outlines and describes City departments that are involved in issuing building and/or grading permits for private development projects and are responsible for inspecting these projects during construction, or that manage public works construction projects that have a potential to impact water quality. Development Services Department - Planning Division Contact Name: Cheryl Kuta Title: Planning Manager Telephone: 949-461-3479 The Planning Division is responsible for implementing the policies and objectives of the community as set forth in the municipality’s General Plan and Zoning Ordinance. This Division also reviews proposed developments for consistency with the City's standards and policies relating to land use, and preservation of the environment, to ensure that the quality of life will be maintained or enhanced for future generations. Development Services Department - Building and Safety Division Contact Name: Tony Dormanesh Title: Building Official Telephone: 949-461-3464 The Building and Safety Division ensures that all building construction in the City complies with adopted codes, and that permitting and licensing systems are efficient and serve the needs of the public, as well as the City. Public Works Department - Engineering Division Contact Name: Theodore Simon Title: Engineering Services Manager Telephone: 949-461-3488 The Engineering Division is responsible for the administration of public improvement projects (typically result in construction activity). The Engineering Division ensures all construction in the public right-of-way complies with adopted codes and engineering standards. Public Works Department – Maintenance Division Contact Name: Luis Estevez Title: Public Works Manager Telephone: 949-461-3485 The Maintenance Division develops, builds and maintains the City's infrastructure, including streetscapes, open space, parks, athletic fields, trails, roadways, traffic signals and many miles of interconnected drainage system. City of Lake Forest A-8-2 December 16, 2010 Local Implementation Plan (LIP) Construction SECTION A-8, CONSTRUCTION A-8.1.2 Program Commitments The major program commitments and the subsections in which they are described in detail include: Maintain/update inventories of construction sites/construction projects (A-8.2.2); Prioritize fixed facilities, construction sites/construction projects (A-8.2.3); BMPs for construction sites/construction projects (A-8.2.4); Documentation requirements (A-8.2.5); Inspection and enforcement (A-8.2.6); and Education and training (A-8.3). A-8.2.3 Regulatory Requirements The Model Construction Program was developed in to fulfill the municipal activity commitments and requirements of: Section XV of the Santa Ana Regional Water Quality Control Board Municipal NPDES Stormwater permit, Order No. R8-2009-0030; and Section F.3 of the San Diego Regional Water Quality Control Board Municipal NPDES Stormwater permit, Order No. R9-2009-0002. A-8.2 MODEL CONSTRUCTION PROGRAM A.8.2.1 Model Program Overview The City has incorporated the model construction program described in DAMP Section 8.2 as the basis for this section of its Local Implementation Plan (LIP). This construction program presents requirements and guidelines for pollution prevention methods that must be used by construction site owners, developers, contractors, and other responsible parties, in order to prevent illicit discharges into the MS4, implement and maintain structural and non-structural BMPs to reduce pollutants in stormwater runoff from construction sites to the MS4, reduce construction site discharges of stormwater pollutants from the MS4 to the maximum extent practicable (MEP), and prevent construction site discharges from the MS4 from causing or contributing to a violation of water quality standards. A-8.2.2 Inventory of Construction Sites A watershed-based inventory of all construction sites has been developed. This includes all sites meeting the definition of a construction project provided in DAMP Section 8.1.5, including those covered by the State General Permit1, a local grading permit or a local building permit, and public works construction projects, and where activities at the site include: soil movement; 1 State Water Resources Control Board (SWRCB) Order No. 2009-0009-DWQ, National Pollutant Discharge Elimination System (NPDES) General Permit No. CAS000002, Waste Discharge Requirements (WDRs) for Discharges of Stormwater Runoff Associated with Construction Activity City of Lake Forest A-8-3 December 16, 2010 Local Implementation Plan (LIP) Construction SECTION A-8, CONSTRUCTION uncovered storage of materials or wastes, such as dirt, sand or fertilizer; or exterior mixing of cementaceous products, such as concrete, mortar or stucco.. The City of Lake Forest’s comprehensive construction site inventory is included in Exhibit A- 8.I. The inventory will at a minimum be updated biannually; once in September—prior to the start of each wet season—and the second update in May. During the update process, projects for which building or grading permit(s) have expired or have been closed, and projects that have been completed, will be removed from the inventory. New projects will also be added to the inventory as they are initiated. A GIS map showing the location of the construction projects inventoried and their proximity to environmentally sensitive areas has also been included in Exhibit A-8.I. A-8.2.3 Prioritization of Construction Sites Construction sites/projects are prioritized into high, medium, or low categories, based on the threat to water quality in the Santa Ana Region. In the San Diego Region, construction sites/projects are prioritized based on the nature and size of the construction activity, topography, and the characteristics of soils and receiving water quality per the guidelines set forth in DAMP Section 8.2.3. Priorities will at a minimum be updated annually in conjunction with the annual update of the inventory. A-8.2.4 BMPs for Construction Projects All construction projects, regardless of size, are required to implement BMPs to prevent discharges into the storm drain system or watercourses. The City has established a minimum set of BMPs and other measures to be implemented at all construction sites year round. BMP implementation requirements may vary seasonally (wet and dry seasons); however, dry season BMP implementation must plan for and address unseasonal rain events that may occur during the dry season. All private and public works projects are required, at a minimum, to implement and be protected by an effective combination of erosion and sediment controls and waste and materials management BMPs. The minimum requirements for construction sites in the Santa Ana Region are summarized in Table A-8.1. The minimum requirements for construction sites in the San Diego Region are summarized in Table A-8.2. City of Lake Forest A-8-4 December 16, 2010 Local Implementation Plan (LIP) Construction SECTION A-8, CONSTRUCTION Table A-8.1 Minimum Requirements for Construction Sites in the Santa Ana Region CATEGORY MINIMUM REQUIREMENTS Erosion and Sediment Control Sediments from areas disturbed by construction shall be retained on site using an effective combination of erosion and sediment controls to the maximum extent practicable, and stockpiles of soil shall be properly contained to minimize sediment transport from the site to streets, drainage facilities or adjacent properties via runoff, vehicle tracking, or wind. Waste and Materials Construction-related materials, wastes, spills or residues Management Control shall be retained on site to minimize transport from the site to streets, drainage facilities, or adjoining property by wind or runoff. City of Lake Forest A-8-5 December 16, 2010 Local Implementation Plan (LIP) Construction SECTION A-8, CONSTRUCTION Table A-8.2 Minimum Requirements for Construction Sites in the San Diego Region CATEGORY MINIMUM REQUIREMENTS Management i. Pollution prevention where appropriate; Measures ii. Development and implementation of a site specific run-off management plan; iii. Minimization of areas that are cleared and graded to only the portion of the site that is necessary for construction; iv. Minimization of exposure time of disturbed soil areas; v. Minimization of grading during the wet season and correlation of grading with seasonal dry weather periods to the extent feasible; vi. Limitation of grading to a maximum disturbed area as determined by the