Lake Forest Municipal Code Art. XIII Erosion Control

A. All grading shall be undertaken in accordance with the best management practices for pollution prevention adopted by the City, the City's NPDES Permit regulating discharges into and from its MS4, the DAMP, and any other conditions, requirements and water quality management plans adopted by the City.

B. Prior to the issuance by the City of a grading permit, the Department of Public Works and/or Community Development Department shall review the project plans and impose terms, conditions and requirements on the project in accordance with Sections 8.30.150(A) and 15.14.040(A) of this Code.

C. In addition to the requirements imposed under Section 8.30.150(B), prior to issuance of any grading permit, the Authorized Inspector, as defined in Section 15.14.020(A) of this Code, may require, as a condition to such permit, the implementation of BMPs to ensure that the discharge of pollutants from the site will be effectively prohibited and will not cause or contribute to an exceedance of water quality standards. Each grading project shall implement such BMPs to ensure that discharges of pollutants are effectively prohibited and will not cause or contribute to an exceedance of water quality standards. All construction and grading activities shall comply with applicable laws, including all applicable City ordinances and the City's NPDES Permit regulating discharges into and from the MS4.

D. Compliance with this Section 8.30.150 shall be in addition to any applicable requirements of Chapter 15.14 of the Municipal Code.

(Ord. 107 § 1, 1999; Ord. 140 § 2(8), 2003; Ord. 246 § 29, 2013)

Erosion control plans prepared in accordance with subarticle 13 of the grading manual shall be submitted to the Building Official for approval by September 15th each year for projects under grading permit. The erosion control plan may be waived for grading projects on single residential lot projects providing that an erosion control system, meeting the approval of the Building Official, has been installed, placed, planted, or constructed before October 15th.

(Ord. 107 § 1, 1999)

A. After each rainstorm, silt and debris shall be removed from check berms and desilting basins and the basins pumped dry.

B. After each rainstorm, the performance of the erosion control system shall be evaluated and revised and repaired as necessary.

C. Devices shall not be moved or modified without the approval of the Building Official.

D. The contractor shall be responsible and shall take necessary precautions to prevent public trespass onto areas where impounded water creates a hazardous condition.

E. The contractor and permittee or project owner shall be responsible for continual maintenance of the devices during the rainy season. In the event of failure or refusal by the contractor, permittee, or project owner to properly maintain the devices, the Building Official may cause emergency maintenance work to be done to protect adjacent private and public property. The cost shall be charged to the owner and shall include an initial mobilization cost plus the cost of doing the work as provided in this chapter.

F. In the event the Building Official must cause emergency maintenance work to be done, the Building Official may revoke the grading permit in writing. The grading permit shall not be renewed until an erosion control system and/or other systems necessary to comply with water quality requirements approved by the Building Official are installed and a fee of 1/2 the amount required for the original grading permit paid by the owner. The Building Official may waive installation of an erosion control system after April 15th.

G. If any grading subject to Section 8.30.030, Grading permits, of this Grading Code has commenced on private property without a valid grading permit, the property owner may be required to prepare and implement an erosion control plan as well as other plans required under the water quality requirements which have been approved by the Building Official. In the event of failure by the property owner to install an approved erosion control system and/or other systems necessary to comply with water quality requirements, the Building Official may cause emergency work to be done to protect adjacent private and public property. The procedures of Section 8.30.044, Hazardous conditions, of this Grading Code need not apply for emergency erosion control work between October 1st and April 30th. The cost shall be charged to the owner in accordance with subsection E of this section.

(Ord. 107 § 1, 1999; Ord. 140 § 2(9), 2003)