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NPDES MS4 Annual Report 2020

This Annual Report was assembled to detail the activities in Anne Arundel County for the County and State Fiscal Year (FY) beginning July 1, 2019 and ending June 30, 2020. These activities demonstrate compliance with the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permit terms provided by 40 CFR 122.42(c). It describes the components of the stormwater management program and the associated implementation status. The County proposes no revision to the program at this time.

This report also summarizes the monitoring programs implemented by Anne Arundel County, including data collection and analysis.

On February 12, 2014, the County was issued a new, Fourth-Generation, NPDES MS4 Permit and, in February 2019, was administratively continued until the next permit is issued. This report is the seventh Annual Report prepared under that permit.

NPDES MS4 Annual Report 2020

NPDES MS4 Annual Report 2020 - Cover Letter

Appendix A: Digital Data (including MS4 Geodatabases)

FY20 MS4 Geodatabase (Zip)   

README - FY20 MS4 Geodatabase 

Stormwater Infrastructure Geodatabase (Zip)

Industrial and Commercial Sources Geodatabase (Zip)

Appendix B: Stormwater Management Program

County Bill 67-20

Appendix C: Church Creek and Parole Plaza Monitoring Report

Chemical, Biological, and Physical Characterization of the Church Creek and Parole Plaza NPDES Monitoring Stations: 2019-2020

Appendix D: Picture Spring Branch Monitoring Report

Biological and Geomorphological Conditions in the Picture Spring Branch Subwatershed, Severn River Watershed, Anne Arundel County, Maryland: 2019-2020

Appendix E: IDDE Report

Illicit Discharge Detection and Elimination – 2020 Annual Report

MDE-Program Compliant Data Table (MDB)

Appendix F: Litter and Floatables Comprehensive Plan

Litter and Floatables Comprehensive Plan 

Appendix G: Property Management

Bureau of Utilities

Annapolis Water Reclamation Facility

Annapolis WRF Comprehensive Site Inspection

Annapolis WRF Quarterly Inspections

Annapolis WRF Employee Training

Anne Arundel Utilities Operations Center

Utility Operations Center Annual Comprehensive Review

Utility Operations Center Quarterly Inspections 

Utility Operations Center Employee Training

Broadneck Water Reclamation Facility

Broadneck WRF Comprehensive Site Inspection

Broadneck WRF Quarterly Inspections

Broadneck WRF Employee Training

Broadwater Water Reclamation Facility

Broadwater WRF Comprehensive Site Inspection

Broadwater WRF Quarterly Inspections

Broadwater WRF Employee Training

Cox Creek Water Reclamation Facility

Cox Creek WRF Comprehensive Site Inspection

Cox Creek WRF Quarterly Inspections

Cox Creek WRF Employee Training

Maryland City Water Reclamation Facility

Maryland City WRF Comprehensive Site Inspection

Maryland City WRF Quarterly Inspections

Maryland City WRF Employee Training

Patuxent Water Reclamation Facility

Patuxent WRF Comprehensive Site Inspection

Patuxent WRF Quarterly Inspections

Patuxent WRF Employee Training

Piney Orchard Water Reclamation Facility

Piney Orchard WRF Comprehensive Site Inspection

Piney Orchard WRF Quarterly Inspections

Piney Orchard WRF Employee Training

Bureau of Waste Management Services

Millersville Landfill and Resource Recovery Facility

WMS MLRRF  Annual Comprehensive Site Report

WMS MLRRF Quarterly Routine Stormwater Inspection Reports

WMS MLRRF Employee Training

Northern Recycling Center

WMS NRC Annual Comprehensive Site Report

WMS NRC Quarterly Routine Stormwater Inspection Reports

WMS NRC Employee Training

Southern Recycling Center

WMS SRC Annual Comprehensive Site Report

WMS SRC Quarterly Routine Stormwater Inspection Reports

WMS SRC Employee Training

Bureau of Highways

Central District Roads Yards

SWPPP Annual Inspection - Crownsville

SWPPP Quarterly Inspection - Crownsville

SWPPP Annual Inspection - Odenton

SWPPP Quarterly Inspection - Odenton

SWPPP Annual Inspection - St. Margarets

SWPPP Quarterly Inspection - St. Margarets

Northern District Roads Yards

SWPPP Annual Inspection - Dover

SWPPP Quarterly Inspection - Dover

SWPPP Annual Inspection - Mountain Road

SWPPP Quarterly Inspection - Mountain Road

Southern District Roads Yards

SWPPP Annual Inspection - Davidsonville

SWPPP Quarterly Inspection - Davidsonville

SWPPP Annual Inspection - Friendship

SWPPP Quarterly Inspection - Friendship

Appendix H: Oyster Aquaculture Credits

Water Quality Trading Credit Agreement

MDE Credit Acquisition Request

Appendix I: Restoration Plans and TMDLs

Non-Tidal West River Watershed Sediment TMDL Restoration Plan

Patuxent River Watershed PCB TMDL Restoration Plan

MDE Comments on Anne Arundel County’s Patuxent River PCB SW-WLA WIP

2020 Annual Bacteria TMDL Assessment

2020 Annual Baltimore Harbor and Curtis Creek Bay PCB TMDL Assessment

2020 Annual Baltimore Harbor Watershed Nutrient TMDL Assessment

2020 Annual Little Patuxent Watershed Sediment TMDL Assessment

2020 Annual Middle and Lower Patuxent Watershed Sediment TMDL Assessment

2020 Annual Nontidal Other West Chesapeake Watershed Sediment TMDL Assessment

2020 Annual Patapsco LNB Watershed Sediment TMDL Assessment

2020 Annual Patuxent River Watershed PCB TMDL Assessment

2020 Annual South River Watershed Sediment TMDL Assessment

2020 Annual Upper Patuxent Watershed Sediment TMDL Assessment

Appendix J: FY2020 Financial Assurance Plan

FY20 Financial Assurance Plan - Executive Summary

Anne Arundel County Council Resolution 4-21: Approval of 2020 Financial Assurance Plan

FY20 Financial Assurance Plan (MS Excel)

Appendix K: Program Funding

FY20 WPRP Annual Report (MS Excel)

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