Storm Water Pollution Prevention Plan (SWPPP) - the City of Lompoc!

Any sediment basins shall be designed in accordance with the method provided inCASQA’s Construction BMP Guidance Handbook.Active construction areas shall have BMPs implemented to address erosion control,soil stabilization, and sediment control.Apply linear sediment controls along the toe of slopes, face of slopes and at gradebreaks of exposed slopes to meet the following requirements.Critical Slope / Sheet Flow Length Combinations(Length of shallow, low velocity flows across a site)Slope Percentage Sheet flow length not to exceed0-25% 20 feet25-50% 15 feetOver 50%10 feetConstruction traffic shall use designated entrances and exits equipped with effectivesediment controls to prevent off-site tracking of sediment.All storm drain inlets and perimeter controls, run-off controls, and pollutant controls atdesignated construction entrances and exists shall be maintained to ensure theircontinued effectiveness.Roadways adjacent to the project site shall be swept / vacuumed daily and before arain event, and all construction related materials shall be removed from roadways.All inspection, maintenance repair and sampling activities at the project location shallbe performed or supervised by a Qualified SWPPP Practitioner representing thedischarger. Delegated tasks must be performed by appropriately trained employees.Inspections and observations by the QSP or persons trained by the QSP shall beconducted weekly and at least once during each 24-hour period during extended stormevents. Inspections and observations shall identify and record all BMPs that needmaintenance, have failed or could fail to operate as intended.Repairs to identified BMPs with failures or shortcomings shall be begun, on thedirection of the QSP, within 72 hours and be completed as soon as possible.An inspection checklist shall be completed for each required inspection. (Appendix F)4