EPA 2021 NPDES Multi-Sector General Permit (MSGP) for ...

EPA 2021 NPDES Multi-Sector General Permit (MSGP) for Stormwater Discharges from Industrial Activity

ESS Group, Inc.

Stacey Snow, PE, ENV SP

Environmental Consulting & Engineering for Over 20 YearsOffices in Waltham, MA and East Providence, RI

Mike FeinblattRoger Gosciminski, TURP

essgroup.com |

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Agenda

EPA 2021 NPDES Multi-Sector General Permit (MSGP) for Stormwater Discharges from Industrial Activity 2

Introductions

EHS Compliance Update

EPA 2021 MSGP

Discussion

Resources

EPA 2021 MSGP

Presentation will be recorded

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EHS Compliance Update

Compliance Calendar3/01 EPA Tier II Reporting3/01 EPA Title V Annual Certification 3/01 MassDEP Hazardous Waste & Recycling Annual Report3/02 OSHA Form 300A Electronic Reporting3/31 EPA Greenhouse Gas Report4/01 MassDEP Triennial Source Registration4/15 MassDEP Greenhouse Gas Report4/15 NHDES Air Emission Statement 4/15 Title V Annual Compliance Certification | NH5/01 MassDEP Annual Source Registration (Operating Permit)

5/30 EPA 2021 MSGP Notice of Intent and SWPPP Update6/01 MassDEP Annual Source Registration (Other Annual)7/01 EPA Toxic Release Inventory Report7/01 EPCRA TRI – Forms R & A7/01 MassDEP Toxic Use Reduction Report


Ask us for the pdf

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Stormwater Program Overview• Prepare

• Eligibility• Update SWPPP• Control Measures

• Coverage• NOI

• Check-up• Inspections• Visual Assessments• Monitoring

• Follow-up• AIM• Reporting


SWPPPStormwater Pollution Prevention Plan

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EPA 2021 MSGP Changes


• Public Sign of Permit CoverageCurrently Included in Other NPDES Permits

• Monitoring Changes

• Corrective Action ChangesAdditional Implementation Measures (AIM)

• Consideration of Major Storm Control Measure Enhancements to Address Major Storm Events and Flooding (Such as: Elevated Storage of Materials, Temporarily Reducing Outdoor Storage, Delaying Deliveries)

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EPA 2021 MSGP Changes - Monitoring


• Indicator “Report Only” Monitoring • pH, TSS, COD

• Applies to All Sectors with no Existing Benchmarks• Quarterly Sampling for Permit Term

• PAHs• If Coal-tar sealcoat used or if Specified for Sector• Bi-annual Sampling in First and Fourth Permit years

• Updated Benchmark Values - New EPA Water Quality Criteria• Removed Manganese and Iron Benchmarks• Copper Benchmark is 5.19 ug/L (no longer hardness dependent)• Thresholds Updated for Aluminum, Selenium and Cadmium

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EPA 2021 MSGP Changes - Monitoring


• Benchmark Monitoring • Sample in First and Fourth Permit Years

• Continue Sampling if Benchmarks Exceeded

• Starts in First Full Quarter After NOI

• Impaired Waters Monitoring• Sample in First and Fourth Permit Years

• Must Sample Annually for Pollutants Detected in First and Fourth Years

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essgroup.com |EPA 2021 NPDES Multi-Sector General Permit (MSGP) for Stormwater Discharges from Industrial Activity

ESS Group Five-Year Compliance Calendar Template

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1 2021 - 2022

Facility Inspection1

Visual Assessment2

Indicator Monitoring (pH, TSS, COD)3

Indicator Monitoring (PAH)4

Benchmark MonitoringImpaired Waters Monitoring


Visual Assessment2


Benchmark Monitoring


Visual Assessment2



Benchmark MonitoringAnnual Report7


Visual Assessment2



2 2022 - 2023


Visual Assessment2


Benchmark Monitoring5

Impaired Waters Monitoring6


Visual Assessment2




Visual Assessment2



Annual Report7


Visual Assessment2



3 2023 - 2024


Visual Assessment2





Visual Assessment2




Visual Assessment2



Annual Report7


Visual Assessment2



4 2024 - 2025

Facility Inspection1Visual Assessment2Indicator Monitoring (pH, TSS, COD)3Indicator Monitoring (PAH)4Benchmark MonitoringImpaired Waters Monitoring


Visual Assessment2




Visual Assessment2



Benchmark MonitoringAnnual Report7


Visual Assessment2



5 2025 - 2026


Visual Assessment2





Visual Assessment2




Visual Assessment2



Annual Report7


Visual Assessment2



Oct - Dec Jan - Mar Apr - JunYear1st

Quarter2nd 3rd 4th

Jul - Sep

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• Level 1 – Annual Four-Quarter Average Over Benchmark or Sum of Less than Four Quarters Over 4X Benchmark

• Review Existing Control Measures, SWPPP and On-site Activities

• Install Additional Implementation Measures

• Sample Additional Four Quarters • Deadline 14 Days

If Infeasible, Document and Complete Within 45 Days

Additional Implementation Measures (AIM)

Level 1EPA 2021 NPDES Multi-Sector General Permit (MSGP) for Stormwater Discharges from Industrial Activity 9

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• Level 2 – Repeat of Exceedance While in Level 1

• Implement Additional Stormwater Control Measures

• Sample Additional Four Quarters• Deadline 14 Days

If Infeasible, Document and Complete Within 45 Days


Level 2


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• Level 3 – Repeat of Exceedance while in Level 2

• Implement Permanent, Structural or Treatment Technologies

• Deadline 30 Days If Infeasible, Document and Complete Within 90 Days Can Request Extension from EPA

• Sample Additional Four Quarters


Level 3

Level 2


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• AIM Responses Must Be Reported in Annual Report

• Exemptions Allowed for Natural Background Sources, Run-on, One-time Abnormal Event, Facility Specific Copper and Aluminum Benchmarks

• Immediate Actions Must Be Completed the Same Day, Unless Too Late in the Workday, Then It Can Be Completed the Following Workday Morning

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AIM Preparation Plan

• Review 1st and 2nd Quarter 2021 Benchmark Monitoring Data• Evaluate Existing Treatment System Effectiveness (Influent/EffluentSampling)• Review Best Management Practices (BMPs)• Identify Source Reduction Opportunities• Identify Stormwater Management Control Options• Identify Potential Treatment Options• Review Potential AIM Exemptions

• Natural Background Pollutant Levels• Run-On• Abnormal Events• Facility Specific Risk Analysis


0

1

2

3

4

5

1st Qtr 2nd Qtr 3rd Qtr 4th Qtr

mg/l

mg/l

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NOI Submittal Plan

• Consider Enhanced Measures for Major Storm Events• Update SWPPP• Submit Notice of Intent (NOI)• Post Public Copy of SWPPP• Post Public Signage


SWPPP

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Discussion


• Next Steps• Update SWPPP• File Notice of Intent• Evaluate Current Compliance Status• Develop Action Plan• Five-Year Compliance Calendar• Consider Sampling for Background

Levels, Treatment Efficiencies, etc.• Provide SWPPP Training

• Other Stormwater Program Issues

• Feedback

• Future Topics

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Resources


• EPA 2021 MSGPhttps://www.epa.gov/npdes/stormwater-discharges-industrial-activities-epas-2021-msgp

• ESS Compliance Calendarhttps://www.essgroup.com/resources/environmental-compliance-calendar/

• Updated EPA Industrial Stormwater Monitoring and Sampling Guide

• NetworkingLinkedIn Group

Attendance List

• Presentation

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Thank YouEHS Roundtable Attendees For Your Participation

Stacey Snow, PE, ENV SP

Roger Gosciminski, TURP

Mike Feinblatt


EPA 2021 NPDES Multi-Sector General Permit (MSGP) for ...

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