Prior to the issuance of any grading or building permit, all qualifying land development/redevelopment projects, shall submit and have approved a stormwater quality management plan (SWQMP) to the city engineer on a form provided by the city. The SWQMP shall identify all BMPs that will be incorporated into the project to control stormwater and non-stormwater pollutants during and after construction and shall be revised as necessary during the life of the project. The SWQMP submittal applies to construction projects covered by the NPDES general construction permit as well as construction projects less than five acres. Qualifying development/redevelopment projects include:
A. 
Home subdivisions of ten units or more. This includes single family residences, multifamily residences, condominiums, apartments, etc.;
B. 
Commercial developments of one hundred thousand (100,000) square feet or more. This includes nonresidential developments such as hospitals, educational institutions, recreational facilities, mini-malls, hotels, office buildings, warehouses, and light industrial facilities;
C. 
Vehicle maintenance shops;
D. 
Food service businesses developing five thousand (5,000) square feet or more of land area;
E. 
All hillside developments on ten thousand (10,000) square feet or more, which are located on areas with known erosive soil conditions or where the natural slope is twenty-five (25) percent or more;
F. 
Developments of two thousand five hundred (2,500) square feet of impervious surface or more adjacent to (within two hundred (200) feet) or discharging directly into environmentally sensitive areas such as areas designated in the ocean plan as areas of special biological significance or water bodies listed on the CWA Section 303(d) list of impaired waters;
G. 
Parking lots of five thousand (5,000) square feet or more exposed to stormwater. “Parking lot” is defined as land area or facility for the temporary storage of motor vehicles;
H. 
All re-development projects adding five thousand (5,000) square feet or more of impervious surface on an already developed site. This includes additional buildings and/or structures, extension of an already existing building footprint and construction of parking lots, etc.
(Ord. 229 § 3, 2005)
A. 
Any developer/owner engaging in construction activities which disturb five acres or more of land shall apply for coverage under the general stormwater permit for construction activity with the State Water Resources Control Board (SWRCB). Any developer/owner engaging in construction activities which disturb less than five acres but are part of a larger common plan of development or sale that is greater than five acres must also apply for coverage under the general stormwater permit for construction activity with the State Water Resources Control Board (SWRCB). “Construction activity” includes, but is not limited to: clearing, grading, demolition, excavation, construction of new structures, and reconstruction of existing facilities involving removal and replacement that results in soil disturbance. The owner of the land where the construction activity is occurring is responsible for obtaining coverage under the permit. Owners may obtain coverage under the general permit by completing a notice of intent form (NOI) and mailing the form along with a vicinity map and the appropriate fee to the office of the California State Water Resources Control Board. The NOI form and checklist of items to submit to the state is available from the State Water Resources Control Board in Sacramento, California or from the city’s engineering department. In addition, the owner shall also prepare a stormwater pollution prevention plan (SWPPP) in accordance with state requirements.
B. 
Prior to obtaining any city-issued grading and/or construction permits the developer/owner shall provide evidence of compliance with the general construction permit by providing a copy of the waste discharger’s identification number (WDID) to the city’s engineering department.
(Ord. 229 § 3, 2005)
A. 
Discharges of non-stormwater from construction activities are generally prohibited except for those discharges listed in Section 13.04.100 of this chapter or any discharges authorized by the city engineer or the Regional Water Quality Control Board (RWQCB). The city and the RWQCB will allow the discharge of certain non-stormwater discharges from construction sites provided that they are in compliance with the discharge limitations specified in the current general waste discharge requirements for de minimus discharges issued by the Regional Water Quality Control Board, Santa Ana Region.
B. 
The following discharges are authorized provided they are in compliance with the permit:
1. 
Construction dewatering wastes;
2. 
Wastes associated with well installation, development, test pumping and purging;
3. 
Aquifer testing wastes;
4. 
Dewatering wastes from subterranean seepage, except for discharges from utility company vaults;
5. 
Discharges resulting from hydrostatic testing of vessels, pipelines, tanks, etc.;
6. 
Discharges resulting from the maintenance of potable water supply pipelines, tanks, reservoirs, etc.;
7. 
Discharges resulting from the disinfection of potable water supply pipelines, tanks, reservoirs, etc.;
8. 
Discharges from potable water supply systems resulting from system failures, pressure releases, etc.;
9. 
Discharges from fire hydrant testing or flushing.
(Ord. 229 § 3, 2005)
A. 
Authorized non-stormwater discharges under Section 13.04.192 shall be reported to the city engineer at least five days prior to a planned discharge. Unplanned discharges of non-stormwater into the city’s storm drainage system shall be reported as soon as possible and before any discharge is initiated. The city’s engineering department, will provide a non-stormwater discharge notification form for any developer that is proposing to discharge any non-stormwater from a construction site. The non-stormwater discharge notification form must be submitted to the engineering department, for these discharges, at least five days prior to any planned discharge or as soon as possible for any unplanned discharge. Monitoring may also be required for these discharges. If the city provided form is not utilized, a report shall be submitted prior to discharge, which includes the following information:
1. 
Type of proposed discharge;
2. 
Estimated average and maximum daily flow rate;
3. 
Frequency and duration of discharge;
4. 
A description of the proposed treatment system (if appropriate);
5. 
A description of the path from the point of discharge to the nearest storm drain inlet.
B. 
All discharges shall be monitored daily for flow volume and shall be recorded in a daily log by the person responsible for the discharge. Discharges shall also be sampled during the first thirty (30) minutes of each discharge and weekly thereafter for continuous discharges for chlorine and total suspended solids. Monitoring data for flow, chlorine and suspended solids and any other required constituents shall be reported to the city’s engineering department, on a weekly basis.
(Ord. 229 § 3, 2005)
All construction projects which could potentially have an adverse impact on the city’s stormwater drainage system or waters of the state shall install and/or implement appropriate construction and post-construction BMPs, as listed in their SWQMP or the California Stormwater Best Management Practice Handbook, to reduce pollutants to the maximum extent practicable or to the extent required by law.
(Ord. 229 § 3, 2005)
Any individual or entity wishing to engage in construction activity shall comply with Section 13.04.110, and provide evidence of compliance prior obtaining any city issued grading or construction permits.
(Ord. 229 § 3, 2005)