MS4 Permit ComplianceAN INTRODUCTION1
Why Are We Here Tonight•To introduce the MS4 Permit—what it is, why it matters, and what it means for Visalia•To discuss Visalia’s Storm Water Management Plan (SWMP)•To discuss where Visalia stands in terms of permit compliance2 MUNICIPAL SEPARATE STORM SEWER SYSTEM: MS43
4 Municipal NPDES Permitting Authority
U.S. EPA
U.S. EPA
State Water Resources Control Board
State Water Resources Control Board
Regional Water Quality Control Board9 Regions
Regional Water Quality Control Board9 Regions
Municipal Separate Storm Sewer System(MS4)
Municipal Separate Storm Sewer System(MS4)5
MS4 PermitPhase I PermitsMedium and LargePhase II PermitSmall• An MS4 that is not already covered by the Phase I program• Automatically covers on a nationwide basis all small MS4s located in “urbanized areas” as defined by the Census Bureau.• State Board Order No. 2013-0001-DWQ• Municipalities with populations of 100,000 or greater*• Permits are specific to each Regional Water Board* Based on the 1990 US Census. Visalia’s population was <100,000 in 1990.6 CWE: Visalia’s Storm Water ConsultantStorm Water ManagementPlan•Hired CWE in 2016 to develop a comprehensive citywide Storm Water Management Plan (SWMP)•Plan focuses on the preservation of Water QualityStorm Water MasterPlan•Hired Carollo Engineers, Inc. in 2018 to update the Storm and Sewer Facility Master Plans•CWE is the subconsultant working on the Storm Master Plan •Plan focuses on conveyance system functionality 7 Program ElementsProgram ManagementElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollution Prevention/Good HousekeepingPost Construction Storm Water ManagementProgramWater Quality MonitoringProgram Effectiveness Assessment and ImprovementTotal Maximum Daily Loads ComplianceRequirementsAnnual Reporting ProgramTrash AmendmentTrash Amendment adopted by the State Water Board in 2015 and approved by EPA in 20168 Program ManagementProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Adoption of a Storm Water Ordinance Refine Draft Ordinance
Introduce Draft Ordinance
CityCouncilDiscussion
Reading and Public Hearing
AdoptOrdinance
UpdateMunicipalCodesEfforts will be coordinated with:
City Attorney
CommunityDevelopment
Public Works
City Manager’s Office9
Education and Outreach ProgramProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Educate the Public on urban and storm water runoff and how it impacts water quality•Staff TrainingWater-efficient landscaping Illicit discharge reporting
Pesticide, herbicide, fertilizer application
Organized car washes, mobilecleaning, and pressure washing Construction site operators
10Efforts will be coordinated with:
Communications
Public Works
CommunityDevelopment
Water Resources
Community Services
Information Services
Public Involvement and Participation ProgramProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Engage the Public in maintaining water quality Efforts will be coordinated with:
Communications
Public Works
Water Resources
CommunityServices11
Illicit Discharge Detection and EliminationProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Prohibit the discharge of pollutants into the MS4•Enforce discharge prohibitions Efforts will be coordinated with:
Water Resources
Code Enforcement
Public Works•Water Collections•Wastewater
Finance•Business Tax Office•Information Services12
Illicit Discharge Detection and Elimination
Program Management ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollution Prevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgram Effectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment 13 Construction Site Storm Water Runoff Control Program ProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Require construction best management practicesEfforts will be coordinated with:
CommunityDevelopment
Public Works Inspectors14
Pollution Prevention/Good HousekeepingProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Implement programs to prevent or reduce pollutant runoff from City Facilities•Update City storm drain maintenance procedures to prioritize the preservation of receiving water quality•Assess City Operations and Maintenance activities and implement Best Management Practices (BMPs) to reduce pollutant runoffEfforts will be coordinated with:
Airport
CommunityServices
Fire
Public Works• Water Collections
15 Post Construction Storm Water Management ProgramProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Implementation of Low Impact Development (LID) and Green Infrastructure requirements Conventional Development Low Impact DevelopmentEfforts will be coordinated with:
CommunityDevelopment
Water Collections16
Water Quality MonitoringProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Monitor a representative receiving water (Mill Creek) upstream and downstream of Visalia to assess the City’s impact on water quality Upstream Monitoring Location—SW corner of McAuliff & Mill Creek Pkwy Downstream Monitoring Location—east of Preston StEfforts will be coordinated with:
Water Collections17
Program Effectiveness Assessment and ImprovementProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Track effectiveness of the implementation of Storm Water Management Program•Annually assess program effectiveness to determine areas of improvement•Modify program implementation as needed to improve effectiveness18Efforts will be coordinated with:
Communications
Public Works
CommunityDevelopment
Natural Resources Conservation/Water Resources
Community Services
Information Services
Total Maximum Daily Loads(TMDLs) Compliance RequirementsProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•NotCurrentlyApplicable•Packwood Creek and Mill Creek are on the 303(d) List of Impaired Water Bodies for T oxicity (Source Unknown) but do not have TMDLs developed•This may change next permit term (in the next 3-5 years)19 Annual Reporting ProgramProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Submit annual status reports to the State Board 20Efforts will be coordinated with:
Communications
Public Works
CommunityDevelopment
Natural Resources Conservation/Water Resources
Community Services
Information Services
Trash AmendmentProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Implement program to keep trash out of the waterwaysEfforts will be coordinated with:
Water Collections21
Trash AmendmentProgramManagement ElementEducation and Outreach ProgramPublic Involvement and Participation ProgramIllicit Discharge Detection and EliminationConstruction Site Storm Water Runoff Control ProgramPollutionPrevention/Good HousekeepingPost Construction Storm Water Management ProgramWater Quality MonitoringProgramEffectiveness Assessment and ImprovementTotal Maximum Daily Loads Compliance RequirementsAnnual Reporting ProgramTrash Amendment•Install Trash Full Capture SystemsEfforts will be coordinated with:
Water Collections22
23 Summary•All MS4s are required by law to preserve receiving water quality to the maximum extent practicable through a combination of:•Legislation•Education•Public Involvement•Enforcement•Infrastructure•Best Management Practices24 Impacts•Impacts to the City•Increased Operating Expenditures•Additional Capital Improvement Projects•Modifications to Current Operations•Impacts to Community•Modifications to public behavior as water quality awareness increases•Modifications to business practices•Financial impact to the Development Community25 Next Steps•Receiving Water Monitoring•Public Outreach•Ordinance Adoption•Implementation of Best Management Practices26 Questions?27
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Post-Construction Storm Water Management Qualifying Project Flow Chart30 31 32
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1 Continuous sampling is the preferred approach, but physical limitations might force the collection of grab samples. When stream depths are less than 1 foot, grab samples will be collected.2 Flow data will be derived from the co-located KDWCD Stream Gauging Stations.3 Water column only4 Pyrethroid monitoring is required at the urban/rural interface site only.Receiving Water MonitoringParametersEndpointFrequencySpring Summer FallField MeasurementDissolved oxygen (DO)Continuous1Sampling- 1 WeekContinuous1Sampling -1 WeekContinuous1Sampling -1 WeekTemperatureContinuous1Sampling- 2 WeeksContinuous1Sampling -2 WeeksContinuous1Sampling -2 WeeksFlow2Continuous1Sampling- 2 WeeksContinuous1Sampling -2 WeeksContinuous1Sampling -2 WeeksPhysical Habitat Assessment:-pH- Specific Conductance-Alkalinity1 -- --Channel cross sections1 -- --Photo documentation1 -- --Nutrients (Algae):-Total Chlorophyll31 1 1Laboratory AnalysisPyrethroids4(sediment)1 -- --Bacteria-- --Early Fall.Once weekly for4 weeksNutrients (Algae)1 1 1BenthicMacroinvertebrate (BMI)Bioassessment1 -- --37 38 39
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