A. 
All individual construction and grading projects shall implement measures to ensure that pollutants: (1) are not discharged from the site; (2) shall be reduced to the maximum extent practicable (MEP); and (3) will not cause or contribute to an exceedance of water quality objectives in the local natural watercourses. All construction and grading activities shall comply with applicable ordinances, permits and other federal, state and local requirements.
B. 
The permittee shall adhere to the following requirements:
1. 
Develop and implement an erosion and sediment control plan to manage stormwater and nonstormwater discharges from the site at all times in accordance with the Engineering and Construction Manual. Projects disturbing, exposing or stockpiling one acre or more of soil are also required to have coverage under the state construction general permit and generate a stormwater pollution prevention plan (SWPPP);
2. 
Conduct phased grading operations and minimize grading activities during the rainy season;
3. 
Coincide grading with dry weather periods to the extent feasible;
4. 
Implement additional best management practices (BMPs) for all rain events;
5. 
Install a combination of erosion and sediment control measures to effectively prevent erosion and retain sediment on-site throughout the duration of all construction activities;
6. 
Minimize exposure time of disturbed soil areas;
7. 
Temporarily stabilize and re-seed disturbed soil areas as rapidly as possible;
8. 
Permanently re-vegetate or landscape as early as feasible;
9. 
Stabilize all slopes;
10. 
Abide by all of the provisions set forth in the State Water Resource Control Board (SWRCB) national pollutant discharge elimination system (NPDES) general permit for construction activity, if applicable. The city must be provided with a waste discharge identification (WDID) number, the risk level determination number and the qualified SWPPP developer (QSD) prior to issuance of a grading permit;
11. 
Implement the applicable requirements of the city's standard notes such as the grading and erosion and sediment control notes, as specified in and subject to the requirements of the Engineering and Construction Manual.
C. 
The above requirements are applicable to all construction sites regardless of whether the construction site is subject to the state construction general permit or other individual NPDES permit.
(Ord. 13-01 § 4)
A. 
All erosion and sediment control measures shall be designed and implemented to manage stormwater and nonstormwater discharges from the site at all times in accordance with the Engineering and Construction Manual, this title, and all state and federal requirements.
B. 
References used in identifying functional and practical erosion and sediment control measures and standards for the planning and design in the city of Temecula may include the California Stormwater Quality Association's BMP Handbook for Construction and other equivalent sources.
C. 
The permittee shall:
1. 
Be responsible for the control of erosion and sediment discharges on and from all disturbed areas of grading until issuance of certificate of occupancy, at which time the BMPs of the water quality management plan (WQMP) shall be in place and operational.
2. 
Implement the required BMPs year round. Additional site specific BMPs shall also be implemented, as necessary, to comply with this title, which may be more stringent than those required under the construction general permit.
3. 
Implement additional controls (source and treatment) for construction sites that are adjacent or tributary to Clean Water Act Section 303(d) water bodies. Each permittee shall also implement additional controls for construction sites within, adjacent or discharging directly to environmentally sensitive areas.
4. 
Conduct construction site inspection for compliance with this title and all applicable permits.
D. 
No grading work shall be allowed on any portion of the site when the city engineer determines that erosion, mudflow or sediment discharges may adversely affect downstream properties, drainage courses, storm drains, streets, easements, or public or private facilities or improvements unless an approved erosion and sediment control system has been implemented on the site. If the city determines that it is necessary for the city to cause erosion and sediment control measures to be installed or cleanup to be done, the permittee shall pay all of the city's direct and indirect costs including extra inspection, supervision and reasonable overhead charges in accordance with Section 18.24.120 "Cost recovery fees" of this title.
E. 
All protective devices shown on the erosion and sediment control plan and in the SWPPP, if applicable, shall be in place within seven days prior to any forecast rain. If the permittee does not install or maintain erosion and sediment controls or if any cleanup is required, the city engineer may order city crews to do the work or may issue contracts for such work and charge the cost of this work along with indirect costs, extra inspections, supervision and reasonable overhead charges to the cash deposits or other instruments implemented for this work without further notification to the owner. No additional work on the project except erosion and sediment control work shall be performed until the full amount drawn from the cash deposit, in accordance with Section 18.24.140 "Securities" of this title is restored by the permittee.
F. 
Cut and fill slopes shall be protected to control against erosion and sediment discharges until sufficient permanent landscaping has been established. One hundred percent must be in place prior to issuance of certificate of occupancy.
(Ord. 13-01 § 4)
A. 
No grading activity shall be allowed on any single grading site under permit unless the city engineer has approved an erosion and sediment control plan.
B. 
All grading plans, regardless of the date of submittal, shall include an erosion and sediment control plan designed to limit erosion of all disturbed portions of the property and to minimize the transport of soil onto downgrade perimeters, private and public stormwater conveyance systems, environmentally sensitive areas and adjacent properties in accordance with the provisions of this title and the Engineering and Construction Manual.
C. 
All erosion and sediment control BMPs outlined on the erosion and sediment control plan shall be shown on the SWPPP, if applicable, and implemented year round.
D. 
A copy of the approved erosion and sediment control plan shall be maintained at the worksite at all times. A working set of approved plans shall be routinely and frequently modified and updated to ensure effective erosion and sediment control throughout the duration of construction.
(Ord. 13-01 § 4)
A. 
Prior to and after each rainstorm, all on-site and off-site flow-lines, stormwater conveyance systems, check dams, chevrons, silt fences and desilting basins shall be free of sediment, construction materials, waste, miscellaneous debris and deteriorated erosion and sediment controls at all times.
B. 
Prior to and after each rainstorm, the erosion and sediment control system shall be evaluated and revised and repaired as necessary.
C. 
The permittee shall be responsible:
1. 
For taking necessary precautions to prevent public trespassing onto areas where impounded water, due to ESC devices, creates a hazardous condition. Signage indicating "Ponded Water—Do Not Enter" shall be posted.
2. 
For continual maintenance of the devices during all construction activities.
D. 
In the event the city engineer must cause emergency work to be done, he or she may revoke the grading permit. The permit shall not be renewed until an approved erosion and sediment control system has been installed and the owner has paid any applicable fees.
E. 
If any grading or clearing subject to Section 18.06.020 "Grading permits required" of this title has commenced on private property without a valid grading permit, the property owner will be required to stop work, prepare an erosion and sediment control plan (which must be approved by the city), obtain a valid grading permit and implement the erosion and sediment control plan accordingly.
(Ord. 13-01 § 4)
A. 
Best management practices are management practices and operating procedures/devices executed to prevent or reduce pollutant discharges into public or private stormwater conveyance systems. BMPs are effective methods to reduce the movement of pollutants such as sediment, nutrients, pesticides, etc., from a construction site to surface or groundwater. The intent of BMPs is to significantly reduce pollutant discharges and protect our bodies of water by maintaining effective water quality practices. As there may be many potential BMPs to utilize, careful consideration must be given to selecting the appropriate BMPs to use that are both practical and effective water quality protective measures.
B. 
BMPs shall be implemented on a continual basis during construction activities. The following minimum criteria shall be met:
1. 
An effective combination of erosion and sediment controls shall be implemented within seven working days of clearing or inactivity in construction.
2. 
Soil stockpiles must be stabilized with a combination of erosion and sediment controls and have a daily maintenance frequency or as directed by the city engineer.
3. 
Waterway and watercourse protection shall include, but not be limited to, stabilization of the channel before, during and after state-approved in-channel work.
4. 
Additional erosion and sediment control materials shall be stockpiled at various locations throughout the site for immediate implementation within seven days of a forecast rain. The developer/contractor shall make equipment and workers for emergency work available to protect the site.
C. 
Erosion control BMPs shall include temporary or permanent erosion control devices (or both) that comply with city and engineering standards as well as state and federal requirements.
D. 
Temporary site vegetation shall be required, as determined by the city engineer, on any disturbed soil areas of the site when construction activities cease indefinitely and/or when expiration of a grading permit occurs. Temporary site vegetation shall be performed in accordance with Sections 18.06.160 and 18.12.120. Temporary vegetation shall not negate any city requirement or condition of approval to install permanent landscaping.
E. 
Sediment control BMPs shall include temporary or permanent sediment control devices (or both) that comply with city and engineering standards as well as state and federal requirements.
(Ord. 13-01 § 4)
A site may be deemed "inactive" when the areas of construction activity are not active and/or have been active and are not scheduled to be re-disturbed for a prolonged period, as determined by the city engineer. Prior to a site becoming inactive, the following is required:
A. 
The engineer of record or permittee shall be responsible for submitting written notification to the city that construction activities will cease prior to completing the work associated with the approved grading plan;
B. 
The engineer of record shall validate or revise the erosion and sediment control plan and BMP implementation program based on the current site conditions; and
C. 
The engineer of record shall prepare and submit a BMP implementation plan (for all disturbed areas) that demonstrates compliance throughout the expected period of inactivity and establishment of one hundred percent vegetative coverage as the primary erosion control.
(Ord. 13-01 § 4)
A. 
All grading activities subject to the regulations of this title shall be designed and conducted to minimize runoff of all pollutants onto public and private properties and into state and federal waters as required by this section and the Temecula Municipal Code, Title 8, Chapter 8.28, "Stormwater and Urban Runoff Management and Discharge Controls."
B. 
The permittee shall:
1. 
Obtain coverage under the State Water Resources Control Board's construction general permit to:
a. 
Submit a waste discharge identification number and a risk level determination to the city engineer;
b. 
Submit appropriate fees to the SWRCB; and
c. 
Complete all site-specific SWPPP, monitoring and reporting program plans, reports, certifications, and other information required by the permit and/or requested by the Regional Water Quality Control Board, United States Environmental Protection Agency or the city engineer.
2. 
Update all plans as construction activities are modified from their original schedule and/or progress as originally planned.
3. 
Maintain all erosion and sediment control measures at the site throughout the duration of the project, as required by the permit.
All of the information noted above shall be maintained on-site during construction and shall be presented upon demand by the State Water Resources Control Board and/or city engineer. NPDES requirements shall remain in effect until the notice of termination requirements are fulfilled.
(Ord. 13-01 § 4)