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

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Receiving Water: HighThe Santa Ynez River is on the impaired waterbody 303d list for sedimentation/siltation, and has beneficialuses of Cold water Fishery, Migratory, and Spawning. Based on these characteristics, the site has a highreceiving water risk.In accordance with the chart below, the project was determined to have a combined Level 2 Risk based on itssediment (low) and receiving water (high) characteristics. A copy of the Risk Assessment is provided inAppendix D.The General Permit requires visual monitoring at all sites, and effluent water quality at all Risk Level 2 & 3.Section 4 elaborates on the required monitoring for this project. This SWPPP is designed to adhere to RiskLevel 2 requirements as established in Attachment D of the General Permit.Transmission Water MainThe Transmission Water Main will be installed primarily along existing paved roads. In addition, disturbedareas will be returned to pre-construction conditions at project completion. Using the LUP Project TypeDetermination Flow Chart in Attachment A.1 of the Permit, the project is considered a Type 1 LUP. However,because this is a combined SWPPP the higher risk level of the two portions of the project was utilized. Type 2LUP requirements will be met for the linear portion of the project.2.7 Construction ScheduleThe project is anticipated to start in the fall of 2010 and be completed prior to the rainy season.Contract Award 01/01/2011Site Preparation and Grubbing 01/01/2011Implement Temporary Erosion and Sediment Control BMPs 01/08/2011Clearing and Grading 01/10/2011Well Drilling 01/15/2011Electrical conduit/ subgrade preparation 01/27/2011Transmission Water Main Line 02/20/2011PCC and Drainage 02/27/2011AC Paving Operations 02/27/11Slope Stabilization 08/10/2011Project Accepted 08/15/20112.8 Potential Construction Site Pollutant SourcesThe following is a list of construction materials which will be used and activities that will be performed thathave the potential to contribute pollutants off-site:• Clearing, Grubbing, Trenching and Grading Operations (slopes, pads, driveway and pipeline)• Base and AC Pavement Placement (driveway and pipeline)• PCC (curbs and pads)• Vehicle fluids, including oil, grease, petroleum and coolants (from construction equipment)• Trash (from construction personnel)Municipal Water Well No. 11 and Transmission Water Main – SWPPP July 20, 2010Page 8
• Paint (for pavement markings)2.9 Identification of Non-Stormwater DischargesNon-storm water discharges are prohibited by the General Permit and include the discharge of materials otherthan stormwater and authorized non-stormwater discharges.An inventory of construction activities and potential non-storm water discharges was undertaken to identifyappropriate BMPS to eliminate or control all non-storm water discharges. Potential discharges identifiedinclude:• Concrete Wastes (curbs and pads)• Vehicle fluids, including oil, grease, petroleum and coolants (from construction equipment)• Vehicle and equipment fueling• Sanitary Waste• Liquid waste (slurries, filling fluids, wash water)Potential non-visible pollutant identified include:• Concrete Waste• Landscaping products• Soil stabilization productsMunicipal Water Well No. 11 and Transmission Water Main – SWPPP July 20, 2010Page 9
Page 1 and 2: Storm Water Pollution Prevention Pl
Page 3 and 4: Section 1 Introduction1.1 Obtaining
Page 5 and 6: 1.7 Required Non-Compliance Reporti
Page 7: proposed drainage swale. Run-on als
Page 11 and 12: SE-10 Storm Drain Inlet ProtectionT
Page 13 and 14: Section 4 Construction Site Monitor
Page 15 and 16: Section 34.1 Visual Monitoring/ Ins
Page 17 and 18: Sampling personnel will collect sto
Page 19 and 20: • Discard sample bottles or sampl
Page 21 and 22: • A summary of all analytical res
Page 23 and 24: Section 6 Notice of TerminationWith
Page 25 and 26: Owner’s (or Authorized Representa
Page 27 and 28: Appendix BContractor Information
Page 29 and 30: Appendix CSite Map/Erosion and Sedi
Page 31 and 32: SILT FENCEINLET PROTECTIONAScale: N
Page 33 and 34: Risk Assessment DeterminationConstr
Page 35 and 36: 12Sediment Risk Factor WorksheetA)
Page 37 and 38: Combined Risk Level MatrixReceiving
Page 39 and 40: ATTACHMENT A.1EATTACHMENT A.1LUP Pr
Page 41 and 42: Risk Level 2 Requirements from Atta
Page 43: Any sediment basins shall be design
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Construction Site Monitoring PlanDa
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Maintenance, Inspection, and Repair
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Maintenance, Inspection and Repair
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Quality Assurance and Quality Contr
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Date:Date Rain Predicted to Occur:0
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Rain Event Action Plan (REAP)Date o
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Appendix HPollutant Testing Guidanc
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Appendix HIPollutant Testing Guidan
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Appendix JOther Plans and Permits
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TABLE OF CONTENTSI. FINDINGS ......
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Order3. This General Permit regulat
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OrderB. Activities Covered Under th
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Order35. Discharges occurring in ba
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OrderG. Determining and Reducing Ri
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Order55. This General Permit establ
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Ordercause physical impacts on rece
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OrderIT IS HEREBY ORDERED that all
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OrderJuly 1, 2010. If an existing d
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Order3. The discharger shall contin
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OrderIII. DISCHARGE PROHIBITIONSA.
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OrderIV. SPECIAL PROVISIONSA. Duty
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Order2. Access and copy at reasonab
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Order2. There were no feasible alte
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Order2. The Porter-Cologne Water Qu
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Ordershall be within the ranges spe
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OrderVI. RECEIVING WATER LIMITATION
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OrderEffective two years after the
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OrderXIII. POST-CONSTRUCTION STANDA
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OrderXIV. SWPPP REQUIREMENTSA. The
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OrderXVI. ANNUAL REPORTING REQUIREM
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Storm Water Pollution Prevention Plan (SWPPP) - the City of Lompoc!

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