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

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OrderXIII. POST-CONSTRUCTION STANDARDSA. All dischargers shall comply with the following runoff reductionrequirements unless they are located within an area subject to postconstructionstandards of an active Phase I or II municipal separate stormsewer system (MS4) permit that has an approved Storm WaterManagement Plan.1. This provision shall take effect three years from the adoption date ofthis permit, or later at the discretion of the Executive Officer of theRegional Board.2. The discharger shall demonstrate compliance with the requirements ofthis section by submitting with their NOI a map and worksheets inaccordance with the instructions in Appendix 2. The discharger shalluse non-structural controls unless the discharger demonstrates thatnon-structural controls are infeasible or that structural controls willproduce greater reduction in water quality impacts.3. The discharger shall, through the use of non-structural and structuralmeasures as described in Appendix 2, replicate the pre-project waterbalance (for this permit, defined as the volume of rainfall that ends upas runoff) for the smallest storms up to the 85 th percentile storm event(or the smallest storm event that generates runoff, whichever is larger).Dischargers shall inform Regional Water Board staff at least 30 daysprior to the use of any structural control measure used to comply withthis requirement. Volume that cannot be addressed using nonstructuralpractices shall be captured in structural practices andapproved by the Regional Water Board. When seeking RegionalBoard approval for the use of structural practices, dischargers shalldocument the infeasibility of using non-structural practices on theproject site, or document that there will be fewer water quality impactsthrough the use of structural practices.4. For sites whose disturbed area exceeds two acres, the discharger shallpreserve the pre-construction drainage density (miles of stream lengthper square mile of drainage area) for all drainage areas within the areaserving a first order stream 14 or larger stream and ensure that postprojecttime of runoff concentration is equal or greater than pre-projecttime of concentration.14 A first order stream is defined as a stream with no tributaries.2009-0009-DWQ 36 September 02, 2009
OrderB. All dischargers shall implement BMPs to reduce pollutants in storm waterdischarges that are reasonably foreseeable after all construction phaseshave been completed at the site (Post-construction BMPs).2009-0009-DWQ 37 September 02, 2009
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Storm Water Pollution Prevention Pl
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Section 1 Introduction1.1 Obtaining
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1.7 Required Non-Compliance Reporti
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proposed drainage swale. Run-on als
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• Paint (for pavement markings)2.
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SE-10 Storm Drain Inlet ProtectionT
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Section 4 Construction Site Monitor
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Section 34.1 Visual Monitoring/ Ins
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Sampling personnel will collect sto
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• Discard sample bottles or sampl
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• A summary of all analytical res
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Section 6 Notice of TerminationWith
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Owner’s (or Authorized Representa
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Appendix BContractor Information
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Appendix CSite Map/Erosion and Sedi
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SILT FENCEINLET PROTECTIONAScale: N
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Risk Assessment DeterminationConstr
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12Sediment Risk Factor WorksheetA)
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Combined Risk Level MatrixReceiving
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ATTACHMENT A.1EATTACHMENT A.1LUP Pr
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Risk Level 2 Requirements from Atta
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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
Page 198 and 199: Date:Date Rain Predicted to Occur:0
Page 200 and 201: Rain Event Action Plan (REAP)Date o
Page 202 and 203: Appendix HPollutant Testing Guidanc
Page 204 and 205: Appendix HIPollutant Testing Guidan
Page 210 and 211: Appendix JOther Plans and Permits
Page 212 and 213: TABLE OF CONTENTSI. FINDINGS ......
Page 214 and 215: Order3. This General Permit regulat
Page 216 and 217: OrderB. Activities Covered Under th
Page 218 and 219: Order35. Discharges occurring in ba
Page 220 and 221: OrderG. Determining and Reducing Ri
Page 222 and 223: Order55. This General Permit establ
Page 224 and 225: Ordercause physical impacts on rece
Page 226 and 227: OrderIT IS HEREBY ORDERED that all
Page 228 and 229: OrderJuly 1, 2010. If an existing d
Page 230 and 231: Order3. The discharger shall contin
Page 232 and 233: OrderIII. DISCHARGE PROHIBITIONSA.
Page 234 and 235: OrderIV. SPECIAL PROVISIONSA. Duty
Page 236 and 237: Order2. Access and copy at reasonab
Page 238 and 239: Order2. There were no feasible alte
Page 240 and 241: Order2. The Porter-Cologne Water Qu
Page 242 and 243: Ordershall be within the ranges spe
Page 244 and 245: OrderVI. RECEIVING WATER LIMITATION
Page 246 and 247: OrderEffective two years after the
Page 250 and 251: OrderXIV. SWPPP REQUIREMENTSA. The
Page 252 and 253: OrderXVI. ANNUAL REPORTING REQUIREM
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Storm Water Pollution Prevention Plan (SWPPP) - the City of Lompoc!

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