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F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

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Page 1: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

F.5 Category 5 Waters

Page 2: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Maryland's 2010 Final Integrated Report - Category 5 Waters

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02120201

Lower Susquehanna River

CE, HA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-CB1TF-02120201

Tidal Lower Susquehanna River

CE, HA

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing only applies to the tidal Lower Susquehanna portion (02120201) of CB1TF.

2002 Direct Measurement

MD-02120204

Conowingo Dam Susquehanna River

CE, HA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02120204-Conowingo_Pool

Conowingo Dam Susquehanna River

CE, HA

Impoundments

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

mainstem of Susquehanna River

2008 Direct Measurement

MD-02120204

Conowingo Dam Susquehanna River

CE, HA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02130102-T-ASSAWOMAN_BAY

Assawoman Bay

WO

Coastal Bay

Aquatic Life and Wildlife Nitrogen (Total)

Agriculture

High Yes1996 Dissolved Oxygen

MD-02130102-T-ASSAWOMAN_BAY

Assawoman Bay

WO

Coastal Bay

Aquatic Life and Wildlife Phosphorus (Total)

Agriculture

High Yes1996 Dissolved Oxygen

MD-02130102-T-GREYS_CREEK

Assawoman Bay

WO

Coastal Bay

Aquatic Life and Wildlife Nitrogen (Total)

Source Unknown

High Yes1996 Dissolved Oxygen

Page 1 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 3: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02130102-T-GREYS_CREEK

Assawoman Bay

WO

Coastal Bay

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

High Yes1996 Dissolved Oxygen

MD-02130103-T-MANKLIN_CREEK

Isle of Wight Bay

WO

Coastal Bay

Aquatic Life and Wildlife Nitrogen (Total)

Source Unknown

High Yes1996 Dissolved Oxygen

MD-02130103-T-MANKLIN_CREEK

Isle of Wight Bay

WO

Coastal Bay

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

High Yes1996 Dissolved Oxygen

MD-02130103-T-ISLE_OF_WIGHT_BAY

Isle of Wight Bay

WO

Coastal Bay

Aquatic Life and Wildlife Nitrogen (Total)

Agriculture

High Yes1996 Dissolved Oxygen

MD-02130103-T-ISLE_OF_WIGHT_BAY

Isle of Wight Bay

WO

Coastal Bay

Aquatic Life and Wildlife Phosphorus (Total)

Agriculture

High Yes1996 Dissolved Oxygen

MD-02130104-T

Sinepuxent Bay

WO

Coastal Bay

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

High Yes

Incorporated into the Bay model.

1996 Dissolved Oxygen

MD-02130104-T

Sinepuxent Bay

WO

Coastal Bay

Aquatic Life and Wildlife Nitrogen (Total)

Source Unknown

High Yes

Incorporated into the Bay model.

1996 Dissolved Oxygen

MD-02130105-T-MARSHALL_CREEK

Newport Bay

WO

Coastal Bay

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

High Yes1996 Dissolved Oxygen

MD-02130105-T-MARSHALL_CREEK

Newport Bay

WO

Coastal Bay

Aquatic Life and Wildlife Nitrogen (Total)

Source Unknown

High Yes1996 Dissolved Oxygen

MD-02130106-T

Chincoteague Bay

WO

Coastal Bay

Aquatic Life and Wildlife Nitrogen (Total)

Source Unknown

High Yes

Incorporated into the Bay model.

1996 Dissolved Oxygen

Page 2 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 4: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02130106-T

Chincoteague Bay

WO

Coastal Bay

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

High Yes

Incorporated into the Bay model.

1996 Dissolved Oxygen

MD-POCOH

POCOH - Middle Pocomoke River Oligohaline

WO, SO

Chesapeake Bay segment

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low No

This listing supersedes the previous sediment listing for watershed 02130202.

1996 SAV and Water Clarity

MD-POCOH

POCOH - Middle Pocomoke River Oligohaline

WO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listing for watershed 02130202.

1996 Dissolved Oxygen

MD-POCOH

POCOH - Middle Pocomoke River Oligohaline

WO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listing for watershed 02130202.

1996 Dissolved Oxygen

MD-POCMH

POCMH - Lower Pocomoke River Mesohaline

SO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal.

2008 SAV and Water Clarity

MD-02130202

Lower Pocomoke River

WO, SO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-POCOH-02130202

Lower Pocomoke River

WO, SO

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing only applies to the Lower Pocomoke River (02130202) watershed

2008 Direct Measurement

MD-POCTF

POCTF - Upper Pocomoke River Tidal Fresh

WO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listings for watersheds 02130202, 02130204, and 02130205.

1996 Dissolved Oxygen

Page 3 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 5: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-POCTF

POCTF - Upper Pocomoke River Tidal Fresh

WO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listings for watersheds 02130202, 02130204, and 02130205.

1996 Dissolved Oxygen

MD-POCTF

POCTF - Upper Pocomoke River Tidal Fresh

WO, SO

Chesapeake Bay segment

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low No

This listing captures the tidal Sediment/TSS listings from watersheds 02130202, 02130204, and 02130205.

1996 SAV and Water Clarity

MD-02130203

Upper Pocomoke River

WI, WO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02130203

Upper Pocomoke River

WI, WO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02130203

Upper Pocomoke River

WI, WO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-TANMH

TANMH - Tangier Sound Mesohaline

DO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listing for watersheds 02130206 and 02139998.

1996 Dissolved Oxygen

MD-TANMH

TANMH - Tangier Sound Mesohaline

DO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listing for watersheds 02130206 and 02139998.

1996 Dissolved Oxygen

MD-TANMH

TANMH - Tangier Sound Mesohaline

DO, SO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02130206.

1996 SAV and Water Clarity

Page 4 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 6: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-BIGMH

BIGMH - Big Annemessex River Mesohaline

SO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

Measured acres of SAV does not meet the restoration goal. No water clarity data are available.

2008 SAV and Water Clarity

MD-MANMH

MANMH - Manokin River Mesohaline

SO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV restoration goal is not being met. This listing captures the previous Sediment/TSS listing from watershed 02130208.

1996 SAV and Water Clarity

MD-02130301

Lower Wicomico River

WI, SO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-WICMH-02130301

Lower Wicomico River

WI, SO

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing only applies to the Lower Wicomico River (02130301) watershed

2008 Direct Measurement

MD-WICMH-WICOMICO_RIVER_2

WICMH - Wicomico River Mesohaline

WI, SO

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low No

This area is an extension of AU MD-WICMH-WICOMICO_RIVER. The TMDL for AU MD-WICMH-WICOMICO_RIVER did not cover this additional area.

2010 Direct Measurement

MD-WICMH

WICMH - Wicomico River Mesohaline

WI, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Agriculture

Low No

A TMDL for phosphorus has been approved for the Lower Wicomico River (02130301) and Wicomico Creek (02130303) portions of WICMH. The Monie Bay (02130302) portion of WICMH now (2008) also needs a TMDL for nutrients.

1996 Dissolved Oxygen

Page 5 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 7: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-WICMH

WICMH - Wicomico River Mesohaline

WI, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Urban Runoff/Storm Sewers

Low No

A TMDL for nitrogen has been approved for the Lower Wicomico River (02130301) and Wicomico Creek (02130303) portions of WICMH. The Monie Bay (02130302) portion of WICMH now (2008) also needs a TMDL for nutrients.

1996 Dissolved Oxygen

MD-WICMH-02130302

WICMH - Wicomico River Mesohaline

SO

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low Yes

In 2010 the two shellfish harvesting area listings for the Monie Bay portion of WICMH were aggregated to better reflect the geographic scope of impairment.

2006 Direct Measurement

MD-02130305

Nanticoke River

CA, DO, WI

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-NANMH

NANMH - Lower Nanticoke River Mesohaline

DO, WI

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal.

2008 SAV and Water Clarity

MD-NANTF

NANTF - Upper Nanticoke River Tidal Fresh

DO, WI

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

Segment does not meet the 30-day dissolved oxygen criteria. Placed in Category 5 of the Integrated Report.

2006 Dissolved Oxygen

MD-NANTF

NANTF - Upper Nanticoke River Tidal Fresh

DO, WI

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

Segment does not meet the 30-day dissolved oxygen criteria. Placed in Category 5 of the Integrated Report.

2006 Dissolved Oxygen

MD-NANMH-02130305

NANMH - Lower Nanticoke River Mesohaline

DO, WI

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

Page 6 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 8: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-NANOH

NANOH - Upper Nanticoke River Oligohaline

DO, WI

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

The Marshyhope (02130306) portion was previously listed and had a TMDL approved. Nanticoke River (02130305) portion listed for the first time (2008) based on recent data.

2008 Dissolved Oxygen

MD-NANOH

NANOH - Upper Nanticoke River Oligohaline

DO, WI

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing for the tidal portion of watershed 02130306.

1996 SAV and Water Clarity

MD-NANOH

NANOH - Upper Nanticoke River Oligohaline

DO, WI

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

The Marshyhope (02130306) portion was previously listed and had a TMDL approved. Nanticoke River (02130305) portion listed for the first time (2008) based on recent data.

2008 Dissolved Oxygen

MD-02130306

Marshyhope Creek

CA, DO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02130308

Transquaking River

DO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-HNGMH

HNGMH - Honga River Mesohaline

DO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing for watershed 02130401.

1996 SAV and Water Clarity

MD-HNGMH

HNGMH - Honga River Mesohaline

DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing for watershed 02130401.

1996 Dissolved Oxygen

Page 7 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 9: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-HNGMH

HNGMH - Honga River Mesohaline

DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing for watershed 02130401.

1996 Dissolved Oxygen

MD-LCHMH

LCHMH - Little Choptank River Mesohaline

DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing for watershed 02130402.

1996 Dissolved Oxygen

MD-LCHMH

LCHMH - Little Choptank River Mesohaline

DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing for watershed 02130402.

1996 Dissolved Oxygen

MD-LCHMH

LCHMH - Little Choptank River Mesohaline

DO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal.

2008 SAV and Water Clarity

MD-02130403

Lower Choptank River

TA, DO, CA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-CHOMH1

CHOMH1 - Choptank River Mesohaline mouth 1

TA, DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing from watershed 02130403.

1996 Dissolved Oxygen

MD-CHOMH2

CHOMH2 - Choptank River Mesohaline 2

TA, DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing from watershed 02130403.

1996 Dissolved Oxygen

MD-CHOMH1

CHOMH1 - Choptank River Mesohaline mouth 1

TA, DO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal.

1996 SAV and Water Clarity

Page 8 of 50Category 5 Waters29-Mar-10 FINAL FINAL

Page 10: F.5 Category 5 Waters - Marylandmde.maryland.gov/programs/Water/TMDL/Integrated303dReports/Do… · Maryland's 2010 Final Integrated Report - Category 5 Waters Assessment Unit Basin

Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CHOMH2

CHOMH2 - Choptank River Mesohaline 2

TA, DO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing from watershed 02130403.

1996 SAV and Water Clarity

MD-CHOMH2-LOWER_CHOPTANK_RIVER_MAINSTEM2

CHOMH2 - Choptank River Mesohaline mouth 2

TA, DO

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low No

This is a new listing that adds an additional chunk of impaired water onto the original shellfish listing for the mainstem Choptank. This area was not covered under the previous TMDL.

2010 Direct Measurement

MD-CHOMH2

CHOMH2 - Choptank River Mesohaline mouth 2

TA, DO

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2010 Benthic IBI

MD-CHOMH1

CHOMH1 - Choptank River Mesohaline mouth 1

TA, DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing from watershed 02130403.

1996 Dissolved Oxygen

MD-CHOMH2-02130403

CHOMH2 - Choptank River Mesohaline mouth 2

TA, DO

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

MD-CHOMH1

CHOMH1 - Choptank River Mesohaline mouth 1

TA, DO

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2010 Benthic IBI

MD-CHOMH2

CHOMH2 - Choptank River Mesohaline 2

TA, DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing from watershed 02130403.

1996 Dissolved Oxygen

Page 9 of 50Category 5 Waters29-Mar-10 FINAL FINAL

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CHOOH

CHOOH - Choptank River Oligohaline

TA, DO, CA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient listings from watersheds 02130403 and 02130404.

1996 Dissolved Oxygen

MD-CHOOH

CHOOH - Choptank River Oligohaline

TA, DO, CA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient listings from watersheds 02130403 and 02130404.

1996 Dissolved Oxygen

MD-CHOOH

CHOOH - Choptank River Oligohaline

TA, DO, CA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listings from watersheds 02130403 and 02130404.

2008 SAV and Water Clarity

MD-02130404

Upper Choptank River

TA, QA, CA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-CHOTF

CHOTF - Upper Choptank River Tidal Fresh

TA, QA, CA

Chesapeake Bay segment

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low No

This listing for TSS combines the listings from the tidal portions of the Upper Choptank and Tuckahoe Creek watersheds.

1996 SAV and Water Clarity

MD-CHOTF

CHOTF - Upper Choptank River Tidal Fresh

TA, QA, CA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing resulted from the nutrient listings for the tidal portions of Tuckahoe and Upper Choptank watersheds.

1996 Dissolved Oxygen

MD-CHOTF

CHOTF - Upper Choptank River Tidal Fresh

TA, QA, CA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing resulted from the nutrient listings for the tidal portions of Tuckahoe and Upper Choptank watersheds.

1996 Dissolved Oxygen

Page 10 of 50Category 5 Waters29-Mar-10 FINAL FINAL

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-EASMH

EASMH - Eastern Bay Mesohaline

QA, TA

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.

1996 Dissolved Oxygen

MD-EASMH

EASMH - Eastern Bay Mesohaline

QA, TA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

The SAV/water clarity restoration goal is not being met. This listing captures the TSS/Sediment impairment from watersheds 02130501, 02130502, 02130503, and 02130504.

2008 SAV and Water Clarity

MD-EASMH

EASMH - Eastern Bay Mesohaline

QA, TA

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.

1996 Dissolved Oxygen

MD-EASMH

EASMH - Eastern Bay Mesohaline

QA, TA

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.

1996 Dissolved Oxygen

MD-EASMH

EASMH - Eastern Bay Mesohaline

QA, TA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.

1996 Dissolved Oxygen

MD-EASMH

EASMH - Eastern Bay Mesohaline

QA, TA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-EASMH

EASMH - Eastern Bay Mesohaline

QA, TA

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient impairments for watersheds 02130501, 02130502, 02130503, and 02130504.

1996 Dissolved Oxygen

MD-EASMH-Hunting_Creek

Miles River

TA

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low No

WQA was completed and approved. New data show that shellfish bacteria water quality standards are not being met.

2010 Direct Measurement

MD-EASMH-Miles_River2

Miles River

TA

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low No

An area of 0.41 sq. miles south of the Todds Corner Rd. bridge was added to the existing restricted shellfish harvesting area.

2006 Direct Measurement

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Phosphorus (Total)

Source Unknown

Low No

This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).

1996 Dissolved Oxygen

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).

1996 Dissolved Oxygen

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

The SAV/water clarity restoration goal is not being met. This listing captures the sediment listings from watersheds 02130505, 02130506, and 02130507.

2008 SAV and Water Clarity

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).

1996 Dissolved Oxygen

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Nitrogen (Total)

Source Unknown

Low No

This listing captures the nutrient listing from watershed 02130505. The nutrient impairment for the Corsica River has already been addressed by a TMDL. This listing also does not apply to the Langford Creek portion of CHSMH (WQA).

1996 Dissolved Oxygen

MD-CHSMH

CHSMH - Lower Chester River Mesohaline

KE, QA

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Benthic IBI

MD-CHSOH

CHSOH - Middle Chester River Oligohaline

KE, QA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV is not meeting the restoration goal. This listing supersedes the sediment/TSS listings for the portions of the watersheds 02130509, 02130508, 02130505, and 02130510 that are within CHSOH.

2010 SAV and Water Clarity

MD-CHSMH-02130507

Corsica River

KE, QA

Tidal subsegment

Fishing PCB in Fish Tissue

Source Unknown

High No

This listing only applies to the Corsica River (02130507) portion of CHSMH.

2002 Direct Measurement

MD-02130509

Middle Chester River

KE, QA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02130510

Upper Chester River

KE, QA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-02130510-Millington_Wildlife_Ponds

Upper Chester River

KE

Impoundments

Fishing Mercury in Fish Tissue

Atmospheric Deposition - Toxics

High Yes2004 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CHSTF

CHSTF - Upper Chester River Tidal Fresh

KE, QA

Chesapeake Bay segment

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low No

This listing captures the previous Sediment/TSS listing from watershed 02130510.

1996 SAV and Water Clarity

MD-CHSTF-Duck_Neck_Beach

Upper Chester River

QA

Public Beach

Water Contact Sports Enterococcus

Source Unknown

Low No

Previously erroneously listed as a shellfish area. Proper listing is for Duck Neck Beach only and the water contact use. May be delisted with reanalysis of data for compliance with the 35 cfu/100ml standard.

1996 Direct Measurement

MD-ELKOH

Upper and Lower Elk River

CE

Tidal subsegment

Fishing PCB in Fish Tissue

Source Unknown

High No

This listing now incorporates both the Lower and Upper portions of the Elk (watersheds 02130601 and 02130602). This listing was aggregated with the listing for the Lower Elk since they were hydrologically connected.

2002 Direct Measurement

MD-ELKOH

ELKOH - Elk River Oligohaline

CE

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the nutrient listings for watersheds 02130601 and 02130603.

1996 Dissolved Oxygen

MD-ELKOH

ELKOH - Elk River Oligohaline

CE

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2010 Benthic IBI

MD-ELKOH

ELKOH - Elk River Oligohaline

CE

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the nutrient listings for watersheds 02130601 and 02130603.

1996 Dissolved Oxygen

MD-BOHOH

BOHOH - Bohemia River Oligohaline

CE

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2002 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-C&DOH

C&DOH - C&D Canal Oligohaline

CE

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

Ches. Bay tributary already listed for Nutrients in 1996. Dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.

1996 Dissolved Oxygen

MD-C&DOH

C&DOH - C&D Canal Oligohaline

CE

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2002 Direct Measurement

MD-C&DOH

C&DOH - C&D Canal Oligohaline

CE

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

Ches. Bay tributary already listed for Nutrients in 1996. Low dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.

1996 Dissolved Oxygen

MD-NORTF

NORTF - North East River Tidal Fresh

CE

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing only applies to watershed 02130608.

2002 Direct Measurement

MD-SASOH

SASOH - Sassafras River Oligohaline

CE, KE

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2002 Direct Measurement

MD-SASOH

SASOH - Sassafras River Oligohaline

CE, KE

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

The SAV/water clarity goal has not been met for this segment. This listing supersedes the previous Sediment/TSS listing for watershed 02130610.

2010 SAV and Water Clarity

MD-02130701

Bush River

HA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-BSHOH-02130701

BSHOH - Bush River Oligohaline

HA

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2002 Direct Measurement

MD-BSHOH

BSHOH - Bush River Oligohaline

HA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

Ches. Bay tributary already listed for Nutrients in 1996. Low dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.

1996 Dissolved Oxygen

MD-BSHOH

BSHOH - Bush River Oligohaline

HA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

Ches. Bay tributary already listed for Nutrients in 1996. Dissolved oxygen levels are an indicator of nutrient impairment. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met.

1996 Dissolved Oxygen

MD-021307021130-Edgewater_Village_Lake

Lower Winters Run

HA

Impoundments

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low No

Phosphorus loading analysis was conducted but a TMDL was never written. A load reduction of 90% was determined not feasible given the use I.e., storm water management therefore, a UAA is being considered and is pending.

1998 Dissolved Oxygen

MD-02130702

Lower Winters Run

HA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-021307031132-Atkisson_Reservoir

Atkisson Reservoir

HA

Impoundments

Water Contact Sports Sedimentation/siltation

Source Unknown

Low Yes1996 Unknown

MD-021307031132-Atkisson_Reservoir

Atkisson Reservoir

HA

Impoundments

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02130703

Atkisson Reservoir

HA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02130704

Bynum Run

HA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02130704

Bynum Run

HA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02130705

Aberdeen Proving Ground

HA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-CB1TF-02130705

Aberdeen Proving Ground

HA

Tidal subsegment

Aquatic Life and Wildlife Toxics

Source Unknown

High Yes

This listing only applies to the tidal Aberdeen Proving Grounds (02130705) portion of CB1TF.

1996 Direct Measurement

MD-02130706

Swan Creek

HA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-GUNOH-02130801

Gunpowder River

HA, BA

Tidal subsegment

Fishing PCB in Fish Tissue

Source Unknown

High No

This listing only applies to the Gunpowder River portion of GUNOH.

2006 Direct Measurement

MD-GUNOH

GUNOH - Gunpowder River Oligohaline

HA, BA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

Ches. Bay tributary already listed for Nutrients in 1996. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met. This listing does not apply to the Bird River portion of GUNOH (WQA approved for nutrients).

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-GUNOH

GUNOH - Gunpowder River Oligohaline

HA, BA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

Ches. Bay tributary already listed for Nutrients in 1996. Bay tributary segments cannot be delisted for nutrients until all dissolved oxygen criteria are met. This listing does not apply to the Bird River portion of GUNOH (WQA approved for nutrients).

1996 Dissolved Oxygen

MD-GUNOH

GUNOH - Gunpowder River Oligohaline

HA, BA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing supersedes the Sediment/TSS listings for watersheds 02130801 and 02130803.

2010 SAV and Water Clarity

MD-MIDOH

MIDOH - Middle River Oligohaline

BA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing captures the previous nutrient listings for watersheds 02130807 and 02130801.

1996 Dissolved Oxygen

MD-MIDOH

MIDOH - Middle River Oligohaline

BA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing captures the previous nutrient listings for watersheds 02130807 and 02130801.

1996 Dissolved Oxygen

MD-MIDOH

MIDOH - Middle River Oligohaline

BA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listing for watersheds 02130807 and 02130801.

1996 SAV and Water Clarity

MD-02130802

Lower Gunpowder Falls

BA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02130802

Lower Gunpowder Falls

BA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

High Yes

Monitoring completed for this area. Waiting on Chesapeake Bay Phase 5 model and VIMS work on model development.

1996 Dissolved Oxygen

MD-GUNOH-02130803

Bird River

BA

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing only applies Bird River (02130803).

2008 Direct Measurement

MD-02130805

Loch Raven Reservoir

BA, CR

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-MIDOH-02130807

Middle River

BA

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing only applies to the Middle River (02130807) portion of MIDOH.

2006 Direct Measurement

MD-02130901

Back River

BA, BC

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-BACOH

BACOH - Back River Oligohaline

BA

Chesapeake Bay segment

Aquatic Life and Wildlife Polychlorinated biphenyls

Contaminated Sediments

High Yes1998 Direct Measurement

MD-BACOH

BACOH - Back River Oligohaline

BA

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

MD-BACOH

BACOH - Back River Oligohaline

BA

Chesapeake Bay segment

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low No1996 SAV and Water Clarity

MD-PATMH-Bodkin_Creek

PATMH - Patapsco River Mesohaline

AA

Tidal subsegment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing only applies to the Bodkin Creek (02130902) portion of PATMH. A TMDL for TP and TN was already written for the rest of PATMH.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PATMH-Bodkin_Creek

PATMH - Patapsco River Mesohaline

AA

Tidal subsegment

Aquatic Life and Wildlife Copper

Source Unknown

Low Yes

This listing only applies to the Bodkin Creek (02130902) portion of PATMH. NOTE: Bodkin Creek was inadvertently delisted for copper in 2006. The listing category was being changed back to 5.

1996 Direct Measurement

MD-PATMH-Bodkin_Creek

PATMH - Patapsco River Mesohaline

AA

Tidal subsegment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing only applies to the Bodkin Creek (02130902) portion of PATMH. A TMDL for TP and TN was already written for the rest of PATMH.

1996 Dissolved Oxygen

MD-PATMH

PATMH - Patapsco River Mesohaline

BA, AA

SAV Grow Zone

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listings for watersheds 02130903 and 02130902.

1996 SAV and Water Clarity

MD-PATMH

PATMH - Patapsco River Mesohaline

AA, BA, BC

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Benthic IBI

MD-02130903

Baltimore Harbor

AA, BA, BC

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-PATMH-NORTHWEST_BRANCH

PATMH - Patapsco River Mesohaline

BC

Tidal subsegment

Aquatic Life and Wildlife Chromium - sediments

Industrial Point Source Discharge

High No

WQA approved January 18, 2005 for the Inner Harbor/Northwest Branch and Bear Creek. Sediment ingestion study confirmed results of WQA. However, the Dept. anticipates receiving additional Cr data and therefore will postpone any delisting action.

1998 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PATMH-NORTHWEST_BRANCH

PATMH - Patapsco River Mesohaline

BC

Tidal subsegment

Aquatic Life and Wildlife Lead -sediments

Source Unknown

High No

WQA approved January 18, 2005 for the Inner Harbor/Northwest Branch. However, results were deemed inconclusive. Additional study is warranted.

1998 Direct Measurement

MD-PATMH-CURTIS_BAY_CREEK

PATMH - Patapsco River Mesohaline

AA, BC

Tidal subsegment

Aquatic Life and Wildlife Zinc - sediments

Source Unknown

High Yes1998 Direct Measurement

MD-PATMH-BEAR_CREEK

PATMH - Patapsco River Mesohaline

BA

Tidal subsegment

Aquatic Life and Wildlife Chromium - sediments

Industrial Point Source Discharge

High No

WQA approved January 18, 2005 for the Inner Harbor/Northwest Branch and Bear Creek. Sediment ingestion study confirmed results of WQA. However, the Dept. anticipates receiving additional Cr data and therefore will postpone any delisting action.

1998 Direct Measurement

MD-PATMH

PATMH - Patapsco River Mesohaline

AA, BA, BC

Tidal subsegment

Aquatic Life and Wildlife Debris/Floatables/Trash

Source Unknown

Low No

Listing only applies to the Middle Branch from the mouth (Ferry Bar Park to Harbor Hospital Center) extending westward and the Northwest Branch from the Hull Street Pier to Canton Waterfront Park.

2008 Direct Measurement

MD-PATMH-NORTHWEST_BRANCH

PATMH - Patapsco River Mesohaline

BC

Tidal subsegment

Aquatic Life and Wildlife Zinc - sediments

Source Unknown

High No

WQA completed January 18, 2005 for Inner Harbor/Northwest Branch. However, results were deemed inconclusive. Additional study is warranted.

1998 Direct Measurement

MD-PATMH-Middle_Harbor

PATMH - Patapsco River Mesohaline

BC

Tidal subsegment

Aquatic Life and Wildlife Zinc - sediments

Source Unknown

High Yes

This listing only applies to the Middle Harbor portion of PATMH.

1998 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PATMH-02130903

Baltimore Harbor Watershed

AA, BA, BC

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High Yes

This PCB listing was due to sediment data, not fish tissue. This listing only applies to the Baltimore Harbor (02130903) portion of PATMH.

1998 Direct Measurement

MD-PATMH-CURTIS_BAY_CREEK

PATMH - Patapsco River Mesohaline

AA, BC

Tidal subsegment

Aquatic Life and Wildlife PCBs - sediments and fish tissue

Source Unknown

High Yes

This PCB listing was due to sediment data, not fish tissue.

1998 Direct Measurement

MD-PATMH-BEAR_CREEK

PATMH - Patapsco River Mesohaline

BA

Tidal subsegment

Aquatic Life and Wildlife PCBs - sediments and fish tissue

Source Unknown

High Yes

This PCB listing was due to sediment data, not fish tissue.

1998 Direct Measurement

MD-PATMH-MiddleBranch_NorthwestHarbor

PATMH - Patapsco River Mesohaline

BC

Tidal subsegment

Water Contact Sports Enterococcus

Source Unknown

Low No

This listing currently applies to all tidal waters upstream of the Harbor Tunnel. However, more analysis is warranted to further refine the spatial extent of bacterial impairment.

2010 Direct Measurement

MD-PATMH-BEAR_CREEK

PATMH - Patapsco River Mesohaline

BA

Tidal subsegment

Aquatic Life and Wildlife Zinc - sediments

Source Unknown

High No

WQA completed January 18, 2005 for the Inner Harbor/Northwest Branch and Bear Creek. However, results were deemed inconclusive. Additional study is warranted.

1998 Direct Measurement

MD-PATMH-FURNACE_CREEK

PATMH - Patapsco River Mesohaline

AA

Subwatershed

Water Contact Sports Enterococcus

Source Unknown

Medium Yes

Data collected in 2007 by AA county indicate Furnace Creek is impaired for bacteria, see "ListingReview_old98_listings.doc" - 303(d) data for 2008 list. NOTE: Area for Furnace Creek does not include Back Creek which = 0.024 sq. miles

1998 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PATMH-MARLEY_CREEK

PATMH - Patapsco River Mesohaline

AA

Subwatershed

Water Contact Sports Enterococcus

Source Unknown

Medium Yes

Data collected in 2007 by AA county indicate Marley Creek is impaired for bacteria, see "ListingReview_old98_listings.doc" - 303(d) data for 2008 list. NOTE: Tanyard Cove area was not included in Marley Creek and = 0.067 sq miles.

1998 Direct Measurement

MD-PATMH

PATMH - Patapsco River Mesohaline

AA, BA, BC

Navigation Channel

Seasonal Deep-Channel Refuge Use

Nitrogen (Total)

Source Unknown

Low Yes

Navigational channel not covered by the nutrient TMDL completed for Baltimore Harbor (02130903).

1996 Dissolved Oxygen

MD-PATMH

PATMH - Patapsco River Mesohaline

AA, BA, BC

Navigation Channel

Seasonal Deep-Channel Refuge Use

Phosphorus (Total)

Source Unknown

Low Yes

Navigational channel not covered by the nutrient TMDL completed for Baltimore Harbor (02130903).

1996 Dissolved Oxygen

MD-02130904

Jones Falls

BA, BC

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

1996

93%

Fish and Benthic IBIs

MD-02130904-Lake_Roland

Jones Falls

BA

Impoundments

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2002 Direct Measurement

MD-02130904

Jones Falls

BA, BC

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Sulfates

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

56%

Fish and Benthic IBIs

MD-02130904

Jones Falls

BA, BC

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

95%

Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02130905

Gwynns Falls

BA, BC

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

76%

Fish and Benthic IBIs

MD-02130906

Patapsco River Lower North Branch

AA, BA, BC, HO, CR

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Sulfates

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

79%

Fish and Benthic IBIs

MD-02130906

Patapsco River Lower North Branch

AA, BA, BC, HO, CR

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

1996

70%

Fish and Benthic IBIs

MD-02130906

Patapsco River Lower North Branch

AA, BA, BC, HO, CR

Non-tidal 8-digit watershed

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

MD-02130906

Patapsco River Lower North Branch

AA, BA, BC, HO, CR

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

78%

Fish and Benthic IBIs

MD-02130907

Liberty Reservoir

BA, CR

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02130907-Liberty_Reservoir

Liberty Reservoir

BA, CR

Impoundments

Fishing Mercury in Fish Tissue

Atmospheric Deposition - Toxics

High No2002 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02130907-Liberty_Reservoir

Liberty Reservoir

BA, CR

Impoundments

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02130907-Liberty_Reservoir

Liberty Reservoir

BA, CR

Impoundments

Aquatic Life and Wildlife Sedimentation/siltation

Source Unknown

Low Yes1996 Unknown

MD-02130908

South Branch Patapsco River

CR, HO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02131001

Magothy River

AA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-MAGMH

MAGMH - Magothy River Mesohaline

AA

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing captures the previous PCBs listing for watershed 02131001.

2006 Direct Measurement

MD-MAGMH

MAGMH - Magothy River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing for watershed 02131001.

1996 Dissolved Oxygen

MD-MAGMH

MAGMH - Magothy River Mesohaline

AA

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No

This listing captures the previous tidal biological listing for watershed 02131001.

2004 Benthic IBI

MD-MAGMH

MAGMH - Magothy River Mesohaline

AA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

The SAV/water clarity restoration goal is not being met. This listing captures the previous Sediment/TSS listing for watershed 02131001.

1996 SAV and Water Clarity

MD-MAGMH

MAGMH - Magothy River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing captures the previous nutrient listing for watershed 02131001.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02131002

Severn River

AA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-SEVMH

SEVMH - Severn River Mesohaline

AA

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2008 Benthic IBI

MD-SEVMH

SEVMH - Severn River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listing for watershed 02131002.

1996 Dissolved Oxygen

MD-SEVMH

SEVMH - Severn River Mesohaline

AA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

The SAV/water clarity goal is not being met for this segment. This listing supersedes the previous Sediment/TSS listing for watershed 02131002.

2010 SAV and Water Clarity

MD-SEVMH

SEVMH - Severn River Mesohaline

AA

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

Newer data suggest that PCB levels are down. However, more data is needed to confirm. This listing only includes the Severn mainstem, not Whitehall or Mill Creek.

2006 Direct Measurement

MD-SEVMH

SEVMH - Severn River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listing for watershed 02131002.

1996 Dissolved Oxygen

MD-02131003

South River

AA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-SOUMH

SOUMH - South River Mesohaline

AA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

The SAV/water clarity restoration goal is not being met. This listing supersedes the previous Sediment/TSS listing for watershed 02131003.

1996 SAV and Water Clarity

MD-SOUMH

SOUMH - South River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

Ches. Bay tributary already listed for Nutrients in 1996.

1996 Dissolved Oxygen

MD-SOUMH

SOUMH - South River Mesohaline

AA

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2002 Direct Measurement

MD-SOUMH

SOUMH - South River Mesohaline

AA

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2008 Benthic IBI

MD-SOUMH

SOUMH - South River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

Ches. Bay tributary already listed for Nutrients in 1996.

1996 Dissolved Oxygen

MD-02131004

West River

AA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-RHDMH

RHDMH - Rhode River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing was split from the previous nutrient listing for the whole of watershed 02131004.

1996 Dissolved Oxygen

MD-WST-RHDMH-02131004

West River

AA

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing applies to all of the tidal portion of watershed 02131004.

2006 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-WSTMH

WSTMH - West River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing was split from the original nutrient listing for watershed 02131004.

1996 Dissolved Oxygen

MD-RHDMH

RHDMH - Rhode River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing was split from the previous nutrient listing for the whole of watershed 02131004.

1996 Dissolved Oxygen

MD-WSTMH

WSTMH - West River Mesohaline

AA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

The SAV/water clarity restoration goal is not being met. This listing was split and now supersedes the previous Sediment/TSS listing for watershed 02131004.

1996 SAV and Water Clarity

MD-WSTMH

WSTMH - West River Mesohaline

AA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing was split from the original nutrient listing for watershed 02131004.

1996 Dissolved Oxygen

MD-02131005

Other West Chesapeake Bay

AA, CV

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02131101

Patuxent River lower

CH, CV, PG, SM

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-PAXMH-OH-02131101

PAXMH - Lower Patuxent River Mesohaline

CH, CV, PG, SM

Chesapeake Bay segment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

The PCB listing for PAXOH was aggregated with this listing for TMDL purposes.

2008 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PAXOH

PAXOH - Middle Patuxent River Oligohaline

PG, CV

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listing for watershed 02131101.

1996 Dissolved Oxygen

MD-PAXMH

PAXMH - Lower Patuxent River Mesohaline

CH, CV, PG, SM

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

The SAV/water clarity restoration goal is not being met. This listing captures the previous Sediment/TSS listing for watershed 02131101.

1996 SAV and Water Clarity

MD-PAXMH

PAXMH - Lower Patuxent River Mesohaline

CH, CV, PG, SM

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing captures the previous nutrient listing for watershed 02131101.

1996 Dissolved Oxygen

MD-PAXMH

PAXMH - Lower Patuxent River Mesohaline

CH, CV, PG, SM

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing captures the previous nutrient listing for watershed 02131101.

1996 Dissolved Oxygen

MD-PAXMH

PAXMH - Lower Patuxent River Mesohaline

CH, CV, PG, SM

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing captures the previous nutrient listing for watershed 02131101.

1996 Dissolved Oxygen

MD-PAXMH

PAXMH - Lower Patuxent River Mesohaline

CH, CV, PG, SM

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Benthic IBI

MD-PAXOH

PAXOH - Middle Patuxent River Oligohaline

PG, CV

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2010 Benthic IBI

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PAXOH

PAXOH - Middle Patuxent River Oligohaline

PG, CV

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02131101.

2010 SAV and Water Clarity

MD-PAXMH-BATTLE_CREEK2

PAXMH - Lower Patuxent River Mesohaline

CV

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low No

This portion of Battle Creek was relisted after a WQA was approved for it in 2005 based on new data from MDE's Shellfish Monitoring Program.

2010 Direct Measurement

MD-PAXMH-WELLS_COVE

PAXMH - Lower Patuxent River Mesohaline

CV

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low No2010 Direct Measurement

MD-PAXOH

PAXOH - Middle Patuxent River Oligohaline

PG, CV

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listing for watershed 02131101.

1996 Dissolved Oxygen

MD-CB5MH-ST_JEROMES_CREEK

CB5MH - Chesapeake Bay 5 Mesohaline

SM

Tidal Shellfish Area

Shellfishing Fecal Coliform

Source Unknown

Low No2010 Direct Measurement

MD-PAXMH

PAXMH - Lower Patuxent River Mesohaline

CH, CV, PG, SM

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing captures the previous nutrient listing for watershed 02131101.

1996 Dissolved Oxygen

MD-02131102

Patuxent River middle

AA, CV, PG

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PAXTF

PAXTF - Upper Patuxent River Tidal Fresh

AA, CV, PG

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02131102.

2010 SAV and Water Clarity

MD-PAXTF

PAXTF - Upper Patuxent River Tidal Fresh

AA, CV, PG

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listing for watershed 02131102.

1996 Dissolved Oxygen

MD-PAXTF

PAXTF - Upper Patuxent River Tidal Fresh

AA, CV, PG

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listing for watershed 02131102.

1996 Dissolved Oxygen

MD-02131103

Western Branch

PG

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-WBRTF

WBRTF - Western Branch Patuxent River Tidal Fresh

PG

Chesapeake Bay segment

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low No1996 SAV and Water Clarity

MD-021311040938-Cash_Lake

Patuxent River upper

PG

Impoundments

Fishing Mercury in Fish Tissue

Atmospheric Deposition - Toxics

High Yes2004 Direct Measurement

MD-02131104

Patuxent River upper

AA, HO, PG

River Mainstem

Water Contact Sports Fecal Coliform

Source Unknown

Medium Yes

From point at Old Queen Anne's bridge on Old Queen Anne's bridge road to the confluence of the Patuxent River with the Little Patuxent River.

2008 Direct Measurement

MD-02131104

Patuxent River Upper

AA, HO, PG

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02131104

Patuxent River upper

AA, HO, PG

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02131105

Little Patuxent River

AA, HO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-02131105

Little Patuxent River

AA, HO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Urban Runoff/Storm Sewers

Low Yes1996 Fish and Benthic IBIs

MD-02131106

Middle Patuxent River

HO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-021311070941-Rocky_Gorge_Reservoir

Rocky Gorge Dam

HO, MO, PG

Impoundments

Fishing Mercury in Fish Tissue

Source Unknown

Low No2010 Direct Measurement

MD-02131107

Rocky Gorge Dam

HO, MO, PG

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-CB1TF

CB1TF - Northern Chesapeake Bay Tidal Fresh

CE, HA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing does not apply to the Lower Susquehanna portion of CB1TF (WQA approved on 1/11/2006) nor the Swan Creek portion of CB1TF (TMDL approved on 3/27/2002).

1996 Dissolved Oxygen

MD-CB1TF

CB1TF - Northern Chesapeake Bay Tidal Fresh

CE, HA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing does not apply to the Lower Susquehanna portion of CB1TF (WQA approved on 1/11/2006) nor the Swan Creek portion of CB1TF (TMDL approved on 3/27/2002).

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CB2OH

CB2OH - Northern Chesapeake Bay Oligohaline

BA, CE, HA, KE

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

SAV is not meeting the restoration goal.

2010 SAV and Water Clarity

MD-CB2OH

CB2OH - Northern Chesapeake Bay Oligohaline

BA, CE, HA, KE

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing does not apply to the Fairlee Creek, Still Pond, and Worton Creek portions of CB2OH. These tidal creeks have all had TMDLs completed and approved.

1996 Dissolved Oxygen

MD-CB2OH

CB2OH - Northern Chesapeake Bay Oligohaline

BA, CE, HA, KE

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing does not apply to the Fairlee Creek, Still Pond, and Worton Creek portions of CB2OH. These tidal creeks have all had TMDLs completed and approved.

1996 Dissolved Oxygen

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.

1996 Dissolved Oxygen

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.

1996 Dissolved Oxygen

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Nitrogen (Total)

Source Unknown

High No

This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

SAV is not meeting the restoration goal.

2008 SAV and Water Clarity

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.

1996 Dissolved Oxygen

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Phosphorus (Total)

Source Unknown

High No

This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.

1996 Dissolved Oxygen

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Benthic IBI

MD-CB3MH

CB3MH - Upper Chesapeake Bay Mesohaline

BA, AA, KE, QA

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing incorporates the previous nutrient listings from watersheds 02139997, 02139998, 02130505, and 02130511.

1996 Dissolved Oxygen

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing captures the previous nutrient listing from watershed 02139998.

1996 Dissolved Oxygen

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing captures the previous nutrient listing from watershed 02139998.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing captures the previous nutrient listing from watershed 02139998.

1996 Dissolved Oxygen

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Benthic IBI

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

SAV is not meeting the restoration goal.

2008 SAV and Water Clarity

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Phosphorus (Total)

Source Unknown

High No

This listing captures the previous nutrient listing from watershed 02139998.

1996 Dissolved Oxygen

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Nitrogen (Total)

Source Unknown

High No

This listing captures the previous nutrient listing from watershed 02139998.

1996 Dissolved Oxygen

MD-CB5MH

CB5MH - Lower Chesapeake Bay Mesohaline

CV, SM, DO, SO

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing captures the previous nutrient listing from watershed 02139998.

1996 Dissolved Oxygen

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing captures the nitrogen portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing captures the phosphorus portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.

1996 Dissolved Oxygen

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Benthic IBI

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing captures the phosphorus portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.

1996 Dissolved Oxygen

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing captures the nitrogen portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.

1996 Dissolved Oxygen

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Nitrogen (Total)

Source Unknown

High No

This listing captures the nitrogen portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

SAV does not meet the restoration goal. This listing captures the previous Sediment/TSS listings for watersheds 02130511 and 02131005.

1996 SAV and Water Clarity

MD-CB4MH

CB4MH - Middle Chesapeake Bay Mesohaline

AA, CV, QA, TA, DO

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Phosphorus (Total)

Source Unknown

High No

This listing captures the phosphorus portion of the previous nutrient listings from watersheds 02139998, 02130511, and 02131005.

1996 Dissolved Oxygen

MD-02140101

Potomac River Lower tidal

CH, SM

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listings for the tidal portions of watersheds 02140101, 02140103, 02140104, 02140105, 02140106, and 02140107.

2008 SAV and Water Clarity

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Agriculture

High No

This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Agriculture

High No

This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.

1996 Dissolved Oxygen

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Agriculture

High No

This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.

1996 Dissolved Oxygen

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Benthic IBI

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Phosphorus (Total)

Agriculture

High No

This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.

1996 Dissolved Oxygen

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Seasonal Deep-Channel Refuge Use

Nitrogen (Total)

Agriculture

High No

This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-POTMH

POTMH - Lower Potomac River Mesohaline

CH, SM

Chesapeake Bay segment

Seasonal Deep-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Agriculture

High No

This listing supersedes the previous nutrient listings for watersheds 02140101, 02140103, 02130105, 02140106, 02140107, and 02140108. TMDL for BOD, nitrogen, and phosphorus already approved for Breton Bay portion of POTMH.

1996 Dissolved Oxygen

MD-POTOH1

POTOH1 - Lower Potomac River Oligohaline

CH

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Agriculture

High No

This listing supersedes the nutrient listings for watersheds 02140101 and 02140102.

1996 Dissolved Oxygen

MD-POTOH1

POTOH1 - Lower Potomac River Oligohaline

CH

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Agriculture

High No

This listing supersedes the nutrient listings for watersheds 02140101 and 02140102.

1996 Dissolved Oxygen

MD-POTOH

POTOH - Lower Potomac River Oligohaline

CH

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

Low No

SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listings for watersheds 02140101, 02140102, 02140109, and 02140110.

1996 SAV and Water Clarity

MD-POTOH

POTOH - Lower Potomac River Oligohaline

CH

Chesapeake Bay segment

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No

This listing supersedes the previous estuarine biological listings for watersheds 02140101, 02140102, 02140109, and 02140110.

2010 Benthic IBI

MD-POTTF

POTTF - Upper Potomac River Tidal Fresh

CH, MO, PG

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listings for watersheds 02140102, 02140201, 02140204, and 02140202.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-POTTF

POTTF - Upper Potomac River Tidal Fresh

CH, MO, PG

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listings for watersheds 02140102, 02140201, 02140204, and 02140202.

1996 Dissolved Oxygen

MD-02140103

St. Mary's River

SM

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-POTMH-02140104

Breton Bay

SM

Tidal subsegment

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing is for Breton Bay (02140104).

2008 Direct Measurement

MD-02140109

Port Tobacco River

CH

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2008 Fish and Benthic IBIs

MD-02140109-HOGHOLE_RUN

Port Tobacco River

CH

Non-tidal Segment(s)

Water Contact Sports Enterococcus

Source Unknown

Medium No2006 Direct Measurement

MD-02140109-WILLS_BRANCH

Port Tobacco River

CH

Non-tidal Segment(s)

Water Contact Sports Enterococcus

Source Unknown

Medium No2006 Direct Measurement

MD-02140109-PORT_TOBACCO_CREEK

Port Tobacco River

CH

Non-tidal Segment(s)

Water Contact Sports Enterococcus

Source Unknown

Medium No

Two unnamed tributaries that join Port Tobacco Creek, one to the north and one to the south of RT. 6, are included in this listing.

2006 Direct Measurement

MD-02140109-JENNIE_RUN

Port Tobacco River

CH

Non-tidal Segment(s)

Water Contact Sports Enterococcus

Source Unknown

Medium No2006 Direct Measurement

MD-POTOH3

POTOH3 - Nanjemoy Creek

CH

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listing for 02140110.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-POTOH3

POTOH3 - Nanjemoy Creek

CH

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

Low No

This listing supersedes the previous nutrient listing for 02140110.

1996 Dissolved Oxygen

MD-02140111

Mattawoman Creek

PG, CH

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140201

Potomac River Upper tidal

PG, CH

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-02140202

Potomac River Montgomery County

FR, MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140202

Potomac River Montgomery County

FR, MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02140202

Potomac River Montgomery County

FR, MO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-02140202

Potomac River Montgomery County

FR, MO

Non-tidal 8-digit watershed

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

MD-02140203

Piscataway Creek

PG

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-PISTF

PISTF - Piscataway Creek tidal Fresh

PG

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Nitrogen (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listing for watershed 02140203.

1996 Dissolved Oxygen

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-PISTF

PISTF - Piscataway Creek tidal Fresh

PG

Chesapeake Bay segment

Open-Water Fish and Shellfish Subcategory

Phosphorus (Total)

Source Unknown

High No

This listing supersedes the previous nutrient listing for watershed 02140203.

1996 Dissolved Oxygen

MD-PISTF

PISTF - Piscataway Creek tidal Fresh

PG

Chesapeake Bay segment

Seasonal Shallow-Water Submerged Aquatic Vegetation Subcategory

Total Suspended Solids (TSS)

Source Unknown

High No

SAV does not meet the restoration goal. This listing supersedes the previous Sediment/TSS listing for watershed 02140203.

1996 SAV and Water Clarity

MD-02140205-Northwest_Branch

Anacostia River

MO, PG

Non-tidal 8-digit watershed

Fishing Heptachlor Epoxide

Source Unknown

Low Yes

The extent of this listing was refined in 2010 to reflect the actual impaired waters. This listing only applies to the Northwest Branch.

2002 Direct Measurement

MD-02140205

Anacostia River

MO, PG

Non-tidal 8-digit watershed

Water Contact Sports Debris/Floatables/Trash

Source Unknown

Medium Yes2006 Direct Measurement

MD-02140205

Anacostia River

MO, PG

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140205-Northeast_Northwest_Branches

Anacostia River

MO, PG

Non-tidal 8-digit watershed

Fishing Polychlorinated biphenyls

Source Unknown

Low Yes

The extent of this listing was refined in 2010 to reflect the actual non-tidal impaired waters. This listing only applies to the Northeast and Northwest Branches of the Anacostia watershed.

2002 Direct Measurement

MD-ANATF

ANATF - Anacostia River Tidal Fresh

PG

Chesapeake Bay segment

Water Contact Sports Debris/Floatables/Trash

Source Unknown

Low Yes2006 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02140206

Rock Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140206

Rock Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02140206

Rock Creek

MO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140207

Cabin John Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Urban Runoff/Storm Sewers

Low Yes

The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

1996

58%

Fish and Benthic IBIs

MD-02140207

Cabin John Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

95%

Fish and Benthic IBIs

MD-02140207

Cabin John Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Sulfates

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

62%

Fish and Benthic IBIs

MD-02140208

Seneca Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes

The Biostressor analysis indicated that TSS is a major stressor affecting biological integrity in this watershed. The TMDL for TSS addresses a portion of the biological impairment listing.

1996

16%

Fish and Benthic IBIs

MD-02140208

Seneca Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

40%

Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02140208

Seneca Creek

MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Ammonia (Total)

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that ammonia is a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

15%

Fish and Benthic IBIs

MD-02140301

Potomac River Frederick County

FR, WA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-02140302

Lower Monocacy River

CR, FR, MO

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140302

Lower Monocacy River

CR, FR, MO

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140303

Upper Monocacy River

CR, FR

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140303

Upper Monocacy River

CR, FR

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140304

Double Pipe Creek

CR, FR

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140304

Double Pipe Creek

CR, FR

Non-tidal 8-digit watershed

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

MD-02140304

Double Pipe Creek

CR, FR

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140305

Catoctin Creek

FR

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02140305

Catoctin Creek

FR

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140501

Potomac River Washington County

WA

Non-tidal 8-digit watershed

Fishing PCB in Fish Tissue

Contaminated Sediments

High No

This listing has been updated to represent the watershed-wide impairment.

2008 Direct Measurement

MD-02140501

Potomac River Washington County

WA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-02140501

Potomac River Washington County

WA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140501

Potomac River Washington County

WA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02140502

Antietam Creek

WA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02140502

Antietam Creek

WA

Non-tidal 8-digit watershed

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

MD-02140502

Antietam Creek

WA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140503

Marsh Run

WA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-02140504

Conococheague Creek

WA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife pH, High

Source Unknown

Low No2002 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02140504

Conococheague Creek

WA

Non-tidal 8-digit watershed

Fishing PCB in Fish Tissue

Contaminated Sediments

High No2008 Direct Measurement

MD-02140504

Conococheague Creek

WA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-02140506

Licking Creek

WA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140508

Potomac River Allegany County

WA, AL

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140509

Little Tonoloway Creek

WA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02140512

Town Creek

AL

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02141001

Lower North Branch Potomac River

AL

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-02141001

Lower North Branch Potomac River

AL

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Total Suspended Solids (TSS)

Source Unknown

Low Yes1996 Fish and Benthic IBIs

MD-02141001

Lower North Branch Potomac River

AL

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-02141002

Evitts Creek

AL

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

22%

Fish and Benthic IBIs

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-02141002

Evitts Creek

AL

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Sulfates

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

25%

Fish and Benthic IBIs

MD-021410020107

Evitts Creek

AL

Subwatershed

Aquatic Life and Wildlife pH, Low

Acid Mine Drainage

Medium No2006 Direct Measurement

MD-02141003

Wills Creek

AL, GA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Sulfates

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that sulfates are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

59%

Fish and Benthic IBIs

MD-02141003

Wills Creek

AL, GA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

31%

Fish and Benthic IBIs

MD-02141004

Georges Creek

AL, GA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-02141005

Upper North Branch Potomac River

AL, GA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2004 Fish and Benthic IBIs

MD-021410050039

Upper North Branch Potomac River

GA

Subwatershed

Aquatic Life and Wildlife Manganese

Acid Mine Drainage

Low No2008 Direct Measurement

MD-021410050039

Upper North Branch Potomac River

GA

Subwatershed

Aquatic Life and Wildlife Iron

Acid Mine Drainage

Low No2008 Direct Measurement

MD-021410050040

Upper North Branch Potomac River

GA

Subwatershed

Aquatic Life and Wildlife Manganese

Acid Mine Drainage

Low No2008 Direct Measurement

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-021410050048-Three_Forks_Run

Upper North Branch Potomac River

GA

Subwatershed

Aquatic Life and Wildlife Aluminum

Acid Mine Drainage

Low No2008 Direct Measurement

MD-021410050048

Upper North Branch Potomac River

GA

Subwatershed

Aquatic Life and Wildlife Manganese

Acid Mine Drainage

Low No2008 Direct Measurement

MD-021410050048

Upper North Branch Potomac River

GA

Subwatershed

Aquatic Life and Wildlife Iron

Acid Mine Drainage

Low No2008 Direct Measurement

MD-021410050049

Upper North Branch Potomac River

GA

Subwatershed

Aquatic Life and Wildlife Manganese

Acid Mine Drainage

Low No2008 Direct Measurement

MD-05020201

Youghiogheny River

GA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

MD-05020201-Youghiogheny_River_Lake

Youghiogheny River

GA

Impoundments

Fishing Mercury in Fish Tissue

Atmospheric Deposition - Toxics

Low No2010 Direct Measurement

MD-05020202

Little Youghiogheny River

GA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2006 Fish and Benthic IBIs

MD-05020203

Deep Creek Lake

GA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Low Yes1996 Dissolved Oxygen

MD-05020203-Deep_Creek_Lake

Deep Creek Lake

GA

Impoundments

Aquatic Life and Wildlife Phosphorus (Total)

Source Unknown

Medium Yes1998 Dissolved Oxygen

MD-05020203

Deep Creek Lake

GA

1st thru 4th order streams

Aquatic Life and Wildlife Cause Unknown

Source Unknown

Low No2002 Fish and Benthic IBIs

Page 49 of 50Category 5 Waters29-Mar-10 FINAL FINAL

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Assessment Unit

Basin Name

County

Water Type Detail Sources

PriorityCause TMDL In 2 Years

Notes

Designated UseCycle First

Listed

Percent Attributable Risk

Indicator

MD-05020204

Casselman River

GA

Non-tidal 8-digit watershed

Aquatic Life and Wildlife Chlorides

Urban Runoff/Storm Sewers

Low No

The Biostressor analysis indicated that chlorides are a major stressor affecting biological integrity in this watershed. This listing replaces the biological listing.

2010

26%

Fish and Benthic IBIs

Page 50 of 50Category 5 Waters29-Mar-10 FINAL FINAL