Md. Code Regs. 26.08.02.04-2

Current through Register Vol. 51, No. 22, November 1, 2024
Section 26.08.02.04-2 - Antidegradation Policy Implementation Procedures: Tier II Level of Protection - High Quality Waters
A. In Maryland, the term "Tier II water" is defined as a water body with water quality that measures significantly better than that required by water quality standards to support its designated uses. A Tier II watershed is defined as the area of land that contributes runoff to a Tier II waterbody and any discharges to streams upstream of and including the Tier II waterbody. Significantly better is evaluated statistically to demonstrate at least a 90 percent certainty that the mean of the available data is better than the applicable standard (for example, the criterion is outside the outer bound of the 90 percent confidence interval). Water quality is considered significantly better and waters may be listed as Tier II, if the exclusion under §D of this regulation does not apply and if:
(a) Measured water quality characteristics for which numeric criteria have been promulgated are significantly better than the water quality criteria specified in Regulations .03-.03-3 of this chapter; or
(b) Maryland Biological Stream Survey assessment data indicate that both fish and benthic values of the index of biological integrity are 4.00 or greater.
B. Compilation and Maintenance of the List of High Quality Tier II Waters. The Department shall compile and maintain a public list of the Tier II waters. That list is contained in §N of this regulation. All readily available information may be considered to determine a listing. Tier II listings shall be made only for those specific characteristics for which monitoring data indicates the water body exceeds numeric water quality criteria or thresholds established under the narrative standards for biocriteria. The Department shall consider information available from the categories listed under §§A and D of this regulation.
C. Designation for Specific Water Quality Measures. Where a water body is designated a Tier II water based on a specific water quality measure, potential impacts to only that specific characteristic shall be subject to Tier II review. For example, where a water body is designated Tier II because of high dissolved oxygen, only potential impacts to dissolved oxygen are subject to Tier II review.
D. Waters That May Not Be Listed as Tier II. Water bodies included in the List of Impaired Waters (303(d) List) are not Tier II waters for the impairing substance.
E. Antidegradation Review - General. An antidegradation review of updated, new, or proposed amendments to Water and Sewerage Plans (County Plans), wetlands and waterways permits, water quality certifications, or discharge permits in a Tier II watershed is required to assure consistency with antidegradation requirements. An applicant for proposed amendments to County Plans, a wetlands and waterways permit, water quality certification, or discharge permits in a Tier II watershed that will result in a new, or an increased, permitted annual discharge of pollutants or a potential impact to water quality shall evaluate alternatives to eliminate or reduce discharges or impacts. If impacts are unavoidable (as defined in §H of this regulation), an applicant shall prepare and document a social and economic justification. The Department shall determine, through the public processes for each of these permits or authorizations, whether these activities can be justified.
F. Need for Tier II Antidegradation Review.
(1) Permits and Authorizations. Before submitting an application for a new or major modification of an existing discharge permit or Notice of Intent for authorization under a general permit, wetlands and waterways permit, or water quality certification, the discharger or applicant shall determine whether the receiving water body is in a Tier II watershed by consulting the list of Tier II waters.
(2) County Plans. As part of its continuing planning process, the Department shall review proposed updates or amendments to County Plans for any new or major modifications to discharges to a Tier II watershed. If a proposed update or amendment to a County Plan results in a new discharge or a major modification of an existing discharge to a Tier II watershed, the applicant shall perform a Tier II antidegradation review and:
(a) State final action letters for updated County Plans or proposed amendments to the County Plan, such as changes to water or sewerage service areas, shall, at a minimum, include notification that portions of the updated Plan or amendments to service areas may impact Tier II watersheds; and
(b) For updates or amendments to the County Plans that require discharge permits that grant new discharges or an increase or modification to an existing discharge, the County shall be notified that the applicant for the permit will be required to complete an antidegradation review.
(3) Exemptions. The requirement to perform a Tier II antidegradation review does not apply to individual discharges of treated sanitary wastewater of less than 5,000 gallons per day if all of the existing and designated uses continue to be met.
G. Tier II Antidegradation Review.
(1) If a Tier II antidegradation review is required, the applicant shall provide an analysis of reasonable alternatives that do not require direct discharge or a potential water quality impact to a Tier II watershed. The analysis shall include cost data and estimates to determine the cost effectiveness and feasibility of the alternatives.
(2) If the analysis in §G(1) of this regulation shows that the alternatives are cost effective and feasible, the alternative is required as a condition of the permit, authorization, or amendment to the County Plan.
(3) If the analysis in §G(1) of this regulation shows that the alternatives are not cost effective and feasible, the applicant shall provide the Department with plans to configure or structure the discharge or other regulated activities that may cause a potential water quality impact so as to minimize the use of the assimilative capacity of the water body. The assimilative capacity of the water body is the difference between the water quality at the time the water body was designated as Tier II, the baseline, and the water quality criterion.
(4) An applicant shall update an antidegradation review when applying for a new or major modification to an existing permit or authorization.
H. Potential Determinations Resulting from Antidegradation Reviews.
(1) If there is a cost-effective alternative to direct discharge or water quality impacts, the applicant shall implement the alternative and it shall be a condition of the permit or authorization.
(2) If there is no cost-effective alternative to direct discharge or water quality impacts, but there is potential for further minimization of the use of assimilative capacity, the applicant shall revise the initial application to further minimize the use of assimilative capacity, and it shall be a condition of the permit or authorization. If the minimization of the use of assimilative capacity is adequate, then no social and economic justification (SEJ) is required.
(3) If there is no cost-effective alternative to direct discharge or water quality impacts, minimization of the use of assimilative capacity is not adequate, and the SEJ does not justify the water quality impact, the permit application or authorization shall be denied.
(4) If there is no cost-effective alternative to direct discharge or water quality impacts, all reasonable efforts have been made to minimize the use of assimilative capacity, and the SEJ is adequate and justifies the discharge or water quality impacts, the discharge permit shall be granted subject to other applicable requirements.
I. Social and Economic Justification (SEJ).
(1) An SEJ shall be submitted if:
(a) No cost-effective alternative to the discharge or water quality impacts is available; or
(b) The cumulative degradation resulting from nonpoint source pollution and any other permitted discharges would diminish water quality.
(2) To allow for natural variability, water quality shall be considered diminished only if the assimilative capacity as defined in §G(3) of this regulation is cumulatively reduced by more than 25 percent from the baseline water quality of either benthic or fish IBI value used to make the Tier II stream designation identified in §O of this regulation.
J. Demonstrating Social and Economic Justification for an Impact to Tier II Waters.
(1) In order to promote compact development, maintain habitat and open lands, and minimize water impacts in undeveloped areas, the requirement for social and economic justification is met if all of the following demonstrations are made:
(a) The watershed affecting the Tier II water is located in a priority funding area as defined in State Finance and Procurement Article, § 5-7B-02, Annotated Code of Maryland;
(b) The Department determines, in consultation with the Maryland Department of Planning, that the local jurisdiction in which the watershed affecting Tier II waters are located is using, to the extent reasonably practical, innovative development approaches to minimize impacts to water quality from development;
(c) Physical development after the date of the Tier II listing is necessary to accommodate the projected growth within the watershed, and use of innovative development approaches are maximized to the extent reasonably practicable to encourage redevelopment, reuse, and infill development; and
(d) If the Department of Planning's growth projections for the watershed affecting the Tier II waters demonstrate that additional physical development of undeveloped land is required to accommodate the projected growth and that development is consistent with the applicable county master plan.
(2) The approaches described in §J(1)(b) of this regulation include, but are not limited to, innovative stormwater management and sediment and erosion control design practices, green building design techniques, nutrient removal technology for septic systems, innovative technologies designed to reduce point source discharges of pollutants, uniform building codes designed to remove impediments to rehabilitation projects, model infill development guidelines designed by the Maryland Department of Planning, and transit-oriented development.
K. Components of the Social and Economic Justification.
(1) Components of the SEJ may vary depending on factors including, but not limited to, the extent and duration of the impact from the proposed discharge or regulated activity and the existing uses of the water body.
(2) The economic analyses shall include impacts that result from treatment beyond the costs to meet technology-based or water quality-based requirements.
(3) The economic analysis shall address the cost of maintaining high water quality in Tier II waters and the economic benefit of maintaining Tier II waters.
(4) The economic analysis shall determine whether the costs of the pollution controls needed to maintain the Tier II water would limit growth or development in the watershed including the Tier II water.
L. Department Responsibilities.
(1) The Department shall determine whether the SEJ is adequate and demonstrates that the costs of water pollution controls are reasonable and would not limit development or growth and, if not, shall determine whether lowering of the water quality is unavoidable for necessary development or growth to take place in the watershed.
(2) The Department shall determine whether the SEJ demonstrates that the impact to water quality is necessary for development or growth to take place in the watershed. Evaluation of the SEJ shall consider the relative magnitude of costs and benefits of development, recognizing the difficulty in quantifying benefits, and the extent to which denial of the amendment, permit, or authorization would substantially impact future development within the watershed.
(3) When the Department proposes to issue a tentative determination to either issue or deny the permit application, the notice of tentative determination shall state that these waters are designated as Tier II and, if applicable, that a social and economic justification is available for review.
(4) Existing in-stream water uses and the level of water quality necessary to protect existing uses shall be maintained and protected.
(5) All required point and nonpoint source controls under State statutes and regulations shall be achieved.
M. Public Participation.
(1) Public participation for a permit to discharge to a Tier II watershed is the same as that required for any permit subject to the Administrative Procedure Act or the requirements of Environment Article, Title 1, Subtitle 6, Annotated Code of Maryland.
(2) If an SEJ is not required, the public notice shall reflect the Tier II status of the waterbody and note that an SEJ is not required and note the justification.
(3) If an SEJ is required, the public notice shall reflect the Tier II status of the waterbody and note that an SEJ is required, and the Department shall make the SEJ available for review.
N. List of Tier II Waters Based on Maryland Biological Stream Survey (fish and benthic macroinvertebrate) Index Scores.

Date

Stream Name

County

12-Digit Watershed

From Lat

From Long

To Lat

To Long

Baseline: Fish IBI

Benthic IBI

2007

Black Sulphur Run 1

Allegany

021405110138

39.66571

-78.49952

39.65183

-78.47808

4.33

4.25

2007

Elklick Run 1

Allegany

021410040090

39.57690

-78.91140

39.57095

-78.93507

4.00

4.50

2007

Fifteenmile Creek 1

Allegany

021405110137

39.71230

-78.44577

39.70747

-78.45106

4.67

4.25

2003

Fifteenmile Creek 3

Allegany

021405110135

39.64046

-78.39719

39.63082

-78.38600

5.00

4.25

2007

Fifteenmile Creek 4

Allegany

021405110137

39.71921

-78.44378

39.71230

-78.44577

4.67

4.00

2007

Fifteenmile Creek 5

Allegany

021405110137

39.70188

-78.44975

39.69293

-78.45128

4.67

4.25

2011

Fifteenmile Creek 6

Allegany

021405110135

39.65610

-78.40009

39.65591

-78.39701

4.67

4.00

2007

Town Creek 1

Allegany

021405120122

39.54048

-78.54280

39.52337

-78.54404

4.67

4.25

2007

White Sulphur Run 1

Allegany

021405110137

39.65183

-78.47808

39.66107

-78.45709

4.00

4.25

2003

Sideling Hill Creek 1

Allegany, Washington

021405100148

39.66097

-78.36225

39.63948

-78.33408

4.67

4.25

2021

Wilson Owens Branch 1

Anne Arundel

021311020914

38.825626

-76.68624

38.825834

-76.697119

4.67

4.14

2003

Lyons Creek 1

Anne Arundel, Calvert

021311020910

38.76807

-76.62204

38.76693

-76.63353

5.00

4.71

2011

Lyons Creek 3

Anne Arundel, Calvert

021311020909

38.76472

-76.65905

38.75572

-76.67206

4.33

4.00

2009

Patuxent River 1

Anne Arundel, Prince George's

021311040937

39.01110

-76.73676

39.00709

-76.73319

4.00

4.71

2007

Beetree Run 1

Baltimore Co.

021308050311

39.68323

-76.66591

39.66633

-76.67247

4.33

5.00

2007

Blackrock Run 1

Baltimore Co.

021308050303

39.54230

-76.73384

39.52739

-76.72217

4.67

4.00

2021

Bush Cabin Run 1

Baltimore Co.

021308050306

39.599083

-76.707107

39.61048

-76.681793

4.00

4.84

2007

Cooks Branch 1

Baltimore Co.

021309071048

39.43616

-76.84026

39.43789

-76.86894

4.67

4.84

2007

Cooks Branch 2

Baltimore Co.

021309071048

39.43792

-76.86879

39.43825

-76.87277

4.84

5.00

2021

Deer Creek 1

Baltimore Co.

021202020332

39.713068

-76.597628

39.70742

-76.590096

4.67

4.33

2021

Deer Creek 9

Baltimore Co.

021202020332

39.72117

-76.609265

39.713068

-76.597628

4.67

4.67

2007

Delaware Run 1

Baltimore Co.

021308050303

39.49910

-76.77293

39.50196

-76.76216

4.00

4.33

2011

Harris Mill Creek 1

Baltimore Co.

021202020332

39.71528

-76.62412

39.71307

-76.59763

4.67

4.00

2003

Keysers Run 1

Baltimore Co.

021309071048

39.46914

-76.83976

39.47156

-76.87929

5.00

4.00

2008

Little Falls 1

Baltimore Co.

021308050309

39.62193

-76.63046

39.61385

-76.62302

4.33

4.00

2007

North Branch Patapsco River UT 1

Baltimore Co.

021309071048

39.48558

-76.84373

39.49465

-76.86359

4.67

4.67

2011

North Branch

Patapsco River UT 2

Baltimore Co.

021309071048

39.494629

-76.86357

39.49571

-76.837947

4.17

4.56

2007

Peggys Run 1

Baltimore Co.

021308060314

39.60906

-76.79718

39.61597

-76.79254

5.00

4.00

2007

Peggys Run UT 1

Baltimore Co.

021308060314

39.60402

-76.82804

39.60906

-76.79718

5.00

4.67

2007

Red Run 1

Baltimore Co.

021309051045

39.41111

-76.81224

39.40074

-76.79887

4.67

4.17

2005

Timber Run 1

Baltimore Co.

021309071048

39.44400

-76.84151

39.43794

-76.86878

4.48

4.57

2007

Gunpowder Falls 1

Baltimore Co., Carroll

021308060316

39.69574

-76.80339

39.68389

-76.76963

4.00

4.50

2011

Murphy Run 1

Baltimore Co., Carroll

021308060314

39.62639

-76.83087

39.62004

-76.81855

5.00

4.00

2007

First Mine Branch 1

Baltimore Co., Harford

021308050309

39.62700

-76.55549

39.62524

-76.59857

4.33

4.33

2003

Little Gunpowder Falls 1

Baltimore Co., Harford

021308040298

39.50453

-76.42982

39.48592

-76.42739

4.00

4.33

2003

Little Gunpowder Falls 2

Baltimore Co., Harford

021308040298

39.48150

-76.42516

39.47306

-76.40243

4.33

4.17

2008

Little Gunpowder Falls 3

Baltimore Co., Harford

021308040298

39.52930

-76.51334

39.52561

-76.49405

4.00

4.00

2011

Little Gunpowder Falls 4

Baltimore Co., Harford

021308040298

39.47306

-76.40243

39.46108

-76.39091

4.00

4.33

2007

Choptank River UT 1

Caroline

021304040494

38.89921

-75.80250

38.90032

-75.82887

4.33

4.43

2007

Faulkner Branch 1

Caroline

021303060611

38.71178

-75.79381

38.71002

-75.77321

4.00

4.71

2007

Forge Branch 1

Caroline

021304040505

38.99411

-75.81912

38.96356

-75.82510

4.67

4.14

2008

Herring Run 1 (Caroline Co.)

Caroline

021304040490

38.85163

-75.78393

38.84814

-75.80201

5.00

4.43

2008

Hog Creek 1

Caroline

021304040484

38.75614

-75.90846

38.78274

-75.93954

5.00

4.71

2007

Hunting Creek 1

Caroline

021304030471

38.71848

-75.88225

38.70389

-75.89296

4.33

4.43

2009

Marsh Creek 1

Caroline

021304040476

38.71487

-75.93561

38.70310

-75.94396

4.00

4.71

2007

Robins Creek 1

Caroline

021304040486

38.79651

-75.84430

38.81482

-75.86926

4.67

4.43

2008

Sullivan Branch 1

Caroline

021303060614

38.75398

-75.78257

38.72927

-75.76085

4.33

4.43

2008

Tull Branch 1

Caroline

021303060613

38.74128

-75.79902

38.71843

-75.77007

4.33

4.14

2008

Watts Creek 1

Caroline

021304040492

38.87704

-75.78880

38.85750

-75.81524

4.67

5.00

2008

Tuckahoe River 1

Caroline, Queen Anne's

021304050531

38.99067

-75.92972

38.98128

-75.93486

4.67

5.00

2016

Tuckahoe River 2

Caroline, Queen Anne's

021304050533

38.98128

-75.93486

38.97278

-75.93518

4.67

5.00

2007

Beaver Run 1

Carroll

021309071057

39.52564

-76.94339

39.51553

-76.93306

4.67

4.00

2012

Beaver Run 2

Carroll

021309071057

39.51555

-76.93302

39.50302

-76.91245

4.50

4.00

2007

Gillis Falls 1

Carroll

021309081030

39.41843

-77.07169

39.41370

-77.07350

5.00

4.33

2003

Gillis Falls 2

Carroll

021309081025

39.38573

-77.08755

39.36202

-77.06503

4.67

4.00

2007

Joe Branch 1

Carroll

021309071050

39.49684

-76.98763

39.47308

-76.98504

5.00

4.67

2007

Little Morgan Run 1

Carroll

021309071049

39.44303

-77.00405

39.43667

-76.98714

5.00

5.00

2008

Little Morgan Run 2

Carroll

021309071049

39.43418

-76.97782

39.42667

-76.96086

4.00

4.33

2003

Little Morgan Run UT 1

Carroll

021309071049

39.44732

-77.02609

39.44303

-77.00405

5.00

5.00

2007

Little Morgan Run UT 2

Carroll

021309071049

39.45284

-76.99936

39.43667

-76.98714

4.33

4.00

2008

Middle Run 1

Carroll

021309071056

39.49246

-76.94485

39.47679

-76.92717

5.00

4.33

2007

Morgan Run 1

Carroll

021309071050

39.47892

-76.99912

39.47308

-76.98504

4.33

4.00

2007

Morgan Run UT 1

Carroll

021309071047

39.41909

-76.94624

39.42504

-76.94703

4.67

4.00

2007

North Branch

Patapsco River 1

Carroll

021309071048

39.52245

-76.87527

39.51010

-76.88719

4.00

4.17

2009

Piney Branch 2 (Carroll Co.)

Carroll

021309081026

39.37318

-77.01189

39.35703

-76.99621

4.67

4.00

2007

South Branch Gunpowder Falls UT 1

Carroll

021308060317

39.66661

-76.88386

39.70835

-76.85661

5.00

4.00

2007

South Branch Patapsco River 1

Carroll, Howard

021309081025

39.36322

-77.07507

39.36202

-77.06503

5.00

4.00

2007

Basin Run 1

Cecil

021202030344

39.65615

-76.08164

39.65530

-76.11020

4.33

4.67

2007

Big Elk Creek 1

Cecil

021306060386

39.66985

-75.82816

39.66294

-75.82655

4.00

4.33

2007

Big Elk Creek 2

Cecil

021306060386

39.66297

-75.82656

39.61737

-75.82005

4.67

4.43

2007

Gramies Run 1

Cecil

021306060387

39.70360

-75.85958

39.66983

-75.82808

4.50

4.67

2003

Little North East Creek 1

Cecil

021306080377

39.72566

-75.95853

39.66625

-75.93462

4.67

4.67

2007

Mill Creek 1

Cecil

021202010319

39.58515

-76.05275

39.56460

-76.06549

4.00

4.33

2007

Principio Creek 1

Cecil

021306090380

39.64415

-76.03558

39.61434

-76.03344

4.67

4.00

2007

Principio Creek 2

Cecil

021306090380

39.59454

-76.02519

39.58707

-76.02894

4.00

4.67

2009

Principio Creek 3

Cecil

021306090380

39.58703

-76.02897

39.57064

-76.03058

4.33

4.00

2003

Principio Creek UT 1

Cecil

021306090380

39.61544

-76.05885

39.60709

-76.03070

4.22

4.89

2007

Hill Top Fork UT 1

Charles

021401100775

38.48924

-77.16391

38.46113

-77.15144

4.33

4.43

2008

Hoghole Run 1

Charles

021401090773

38.51805

-77.03583

38.50957

-77.02469

4.13

4.60

2009

Jennie Run 1

Charles

021401090774

38.56786

-76.98150

38.54646

-77.01716

4.33

4.29

2016

Marbury Run 1

Charles

021401110780

3856780

-77.14674

38.57919

-77.15872

4.33

4.14

2007

Mattawoman Creek UT 1

Charles

021401110780

38.53477

-77.16806

38.54767

-77.17246

4.00

4.43

2003

Mattawoman Creek UT 2

Charles

021401110780

38.53761

-77.18100

38.55605

-77.19043

4.33

4.71

2008

Mattawoman Creek UT 3

Charles

021401110781

38.56562

-77.13269

38.58862

-77.12501

4.67

4.43

2009

Mill Dam Run 1

Charles

021401080767

38.56503

-76.83737

38.56415

-76.84207

4.67

4.71

2008

Mill Run 3 (Charles Co.)

Charles

021401100779

38.49943

-77.08434

38.47626

-77.08420

4.11

4.62

2011

Mill Run 5

Charles

021401100779

38.52755

-77.078741

38.52029

-77.090089

4.00

4.43

2007

Mill Run UT 1 (Charles Co.)

Charles

021401100779

38.51104

-77.10720

38.50039

-77.08561

4.50

4.29

2008

Nanjemoy Creek 1

Charles

021401100777

38.42378

-77.21466

38.41522

-77.20368

4.00

4.86

2003

Old Womans Run 1

Charles

021401110784

38.59669

-77.02960

38.59612

-77.05501

4.33

4.71

2007

Old Womans Run 2

Charles

021401110784

38.59708

-77.00973

38.59669

-77.02960

4.67

4.43

2007

Piney Branch 1 (Charles Co.)

Charles

021401080764

38.56180

-76.87701

38.55004

-76.87041

4.33

4.43

2008

Potomac River UT 1

Charles

021401020789

38.46814

-77.24377

38.47086

-77.26168

4.67

4.14

2011

Potomac River UT 2

Charles

021401020789

38.48546

-77.23682

38.47495

-77.25927

4.00

4.43

2007

Reeder Run 1

Charles

021401020789

38.50839

-77.18502

38.51782

-77.20231

4.84

4.29

2003

Reeder Run 2

Charles

021401020789

38.51592

-77.21343

38.53274

-77.22703

4.33

4.71

2016

Reeder Run 3

Charles

021401020789

38.50269

-77.18977

38.50940

-77.20911

4.78

4.52

2012

Swanson Creek 4

Charles

021311010892

38.56522

-76.76043

38.56323

-76.75701

4.00

4.60

2007

Swanson Creek UT 1

Charles

021311010892

38.55236

-76.77384

38.56324

-76.75700

4.67

4.43

2003

Wards Run 1

Charles

021401100778

38.51808

-77.13581

38.51012

-77.14786

4.67

4.71

2009

Wards Run 2

Charles

021401100778

38.50346

-77.15071

38.48449

-77.13184

4.00

4.71

2003

Wolf Den Branch 1

Charles

021401080769

38.63601

-76.82109

38.62192

-76.82043

4.33

4.71

2003

Zekiah Swamp Run 1

Charles

021401080769

38.63464

-76.79846

38.62196

-76.82036

4.33

4.14

2007

Zekiah Swamp Run 2

Charles

021401080768

38.60216

-76.83388

38.59608

-76.83771

4.67

4.71

2003

Zekiah Swamp Run 3

Charles

021401080765

38.58953

-76.84107

38.56355

-76.85086

4.50

4.57

2007

Zekiah Swamp Run 4

Charles

021401080760

38.52679

-76.90389

38.51257

-76.91427

4.67

4.43

2007

Zekiah Swamp Run 5

Charles

021401080760

38.49396

-76.92612

38.48639

-76.92853

4.00

4.71

2007

Zekiah Swamp Run 6

Charles

021401080768

38.61391

-76.83263

38.60216

-76.83388

4.00

4.43

2012

Zekiah Swamp Run 7

Charles

021401080768

38.61910

-76.82968

38.61393

-76.83266

4.17

4.86

2003

Zekiah Swamp Run UT 1

Charles

021401080762

38.52253

-76.87598

38.52817

-76.89208

5.00

4.43

2007

Zekiah Swamp Run UT 2

Charles

021401080766

38.61249

-76.86986

38.58952

-76.84111

4.34

4.00

2008

Zekiah Swamp Run UT 3

Charles

021401080763

38.54068

-76.83338

38.55595

-76.86021

4.33

4.14

2008

Mattawoman Creek 1

Charles, Prince George's

021401110786

38.65497

-76.93916

38.65767

-76.98456

5.00

4.43

2012

Mattawoman Creek 2

Charles, Prince George's

021401110786

38.65234

-76.90833

38.65252

-76.91689

4.00

4.14

2003

Swanson Creek 1

Charles, Prince George's

021311010893

38.60760

-76.74634

38.58927

-76.74244

4.67

5.00

2007

Swanson Creek 2

Charles, Prince George's

021311010890

38.55844

-76.74044

38.55404

-76.72821

4.67

4.14

2007

Swanson Creek 3

Charles, Prince George's

021311010893

38.58927

-76.74244

38.55844

-76.74044

4.67

4.43

2016

Wolf Den Branch 2

Charles, Prince George's

021401080769

38.67283

-76.80444

38.63902

-76.81987

4.00

4.43

2007

Smoots Pond Run 1

Charles, Saint Mary's

021401070751

38.47788

-76.79137

38.49444

-76.80455

5.00

4.43

2007

Blinkhorn Creek 1

Dorchester

021304030467

38.65297

-75.90070

38.65195

-75.93188

4.33

4.71

2003

Davis Millpond Branch 1

Dorchester

021303060607

38.66525

-75.75797

38.67465

-75.77339

4.67

5.00

2008

Skinners Run 1

Dorchester

021303060608

38.67503

-75.82252

38.66851

-75.81497

4.00

4.29

2003

Big Hunting Creek 1

Frederick

021403030251

39.62634

-77.45965

39.60990

-77.41044

4.33

4.25

2008

High Run 1

Frederick

021403030251

39.60468

-77.46215

39.60823

-77.41093

4.00

4.50

2007

Talbot Branch UT 1

Frederick

021403020238

39.46420

-77.13548

39.45535

-77.16043

4.33

4.25

2007

Weldon Creek 1

Frederick

021403020238

39.47694

-77.15018

39.47488

-77.16046

4.00

4.00

2007

Bear Creek 2

Garrett

050202010018

39.65484

-79.36376

39.65316

-79.38472

4.67

4.00

2008

Bear Creek 3

Garrett

050202010018

39.66006

-79.32011

39.65441

-79.33055

4.67

4.25

2008

Bear Creek 4

Garrett

050202010016

39.56476

-79.32195

39.65018

-79.28886

4.22

4.39

2007

Bear Creek 5

Garrett

050202010018

39.65593

-79.33884

39.65482

-79.36370

4.67

4.00

2003

Bear Creek UT 1

Garrett

050202010018

39.64821

-79.34058

39.65559

-79.33808

5.00

4.50

2007

Bear Pen Run 1

Garrett

021410060077

39.59163

-79.14355

39.57341

-79.12028

4.75

4.25

2016

Big Run 1

Garrett

021410060078

39.58348

-79.17124

39.55629

-79.15005

4.88

4.13

2007

Big Run UT 1

Garrett

021410060078

39.57835

-79.19349

39.58348

-79.17124

4.00

4.75

2007

Blacklick Run 1

Garrett

021410060080

39.63910

-79.09647

39.61727

-79.08702

4.00

4.25

2007

Buffalo Run 1

Garrett

050202010019

39.68685

-79.40998

39.69053

-79.40417

4.67

4.00

2008

Buffalo Run 2

Garrett

050202010019

39.69264

-79.43757

39.68915

-79.42334

4.00

4.25

2012

Buffalo Run 3

Garrett

050202010019

39.68781

-79.41738

39.68685

-79.41002

4.00

4.25

2010

Casselman River 1

Garrett

050202040034

39.66851

-79.17745

39.67513

-79.17104

4.67

4.00

2003

Crabtree Creek 1

Garrett

021410060074

39.47779

-79.19210

39.50564

-79.15474

4.47

4.30

2003

Double Lick Run 1

Garrett

021410060076

39.54257

-79.21921

39.53356

-79.20082

4.92

4.38

2007

Dry Run 1

Garrett

021410060077

39.54299

-79.17013

39.52313

-79.14385

4.00

4.50

2007

Hoyes Run 1

Garrett

050202010012

39.53193

-79.40384

39.52879

-79.41254

5.00

4.25

2021

Laurel Run 1

Garrett

050202010019

39.688371

-79.449636

39.6877

-79.439537

4.00

4.25

2011

Laurel Run UT 1

Garrett

021410050050

39.47897

-79.15120

39.47772

-79.11977

4.00

4.25

2003

Little Bear Creek 1

Garrett

050202010016

39.65775

-79.26858

39.65019

-79.28882

4.50

4.25

2008

Little Savage River 1

Garrett

021410060081

39.65111

-78.99097

39.59315

-79.04834

4.00

4.00

2003

Middle Fork Crabtree Creek 1

Garrett

021410060076

39.51193

-79.16195

39.51261

-79.15403

4.67

4.50

2009

Middle Fork Crabtree Creek 2

Garrett

021410060076

39.53353

-79.20087

39.53507

-79.18800

5.00

4.25

2011

Middle Fork Crabtree Creek 3

Garrett

021410060076

39.53507

-79.18800

39.51565

-79.16892

4.00

4.50

2003

Mill Run 1 (Garrett Co.)

Garrett

050202010021

39.71553

-79.34541

39.70909

-79.34891

4.21

4.56

2003

Mill Run 2 (Garrett Co.)

Garrett

050202010021

39.70907

-79.36308

39.71472

-79.38469

4.67

4.00

2003

Mill Run 4 (Garrett Co.)

Garrett

050202010021

39.71883

-79.30088

39.71553

-79.34541

5.00

4.58

2011

Mill Run UT 2 (Garrett Co.)

Garrett

050202010021

39.71594

-79.27141

39.71849

-79.30071

4.50

4.50

2003

Monroe Run 1

Garrett

021410060078

39.54471

-79.22830

39.54944

-79.14434

4.00

4.25

2003

Poplar Lick Run 1

Garrett

021410060079

39.59098

-79.10319

39.58389

-79.09140

4.50

4.38

2003

Puzzley Run 1

Garrett

50202010022

39.69028

-79.22870

39.72189

-79.23219

4.00

4.75

2011

Sand Spring Run 1

Garrett

050202010001

39.257794

-79.473281

39.272048

-79.474658

4.00

4.25

2007

Savage River 1

Garrett

021410060077

39.57974

-79.08983

39.56218

-79.11099

4.34

4.25

2003

Savage River 2

Garrett

021410060077

39.56219

-79.11102

39.54306

-79.13744

4.72

4.29

2009

Savage River 4

Garrett

021410060081

39.59811

-79.05554

39.60227

-79.07229

5.00

4.50

2007

South Branch Bear Creek 1

Garrett

050202010015

39.62367

-79.37594

39.65316

-79.38472

4.33

4.50

2007

South Branch Casselman River 1

Garrett

050202040033

39.62616

-79.19151

39.64653

-79.18124

4.67

4.00

2007

South Branch Casselman River 2

Garrett

050202040033

39.64814

-79.18152

39.66851

-79.17745

4.00

4.25

2011

Spring Lick Run 1

Garrett

021410060074

39.50365

-79.20005

39.49073

-79.17532

4.00

4.25

2011

Toms Spring Run 1

Garrett

021410060076

39.51704

-79.20115

39.51565

-79.16893

4.50

4.75

2016

Wolf Den Run 1

Garrett

021410050047

39.39655

-79.21193

39.38905

-79.19443

4.00

4.00

2016

Wolf Den Run UT 1

Garrett

021210050047

39.41259

-79.22063

39.39655

-79.21193

4.00

4.00

2007

Youghiogheny River UT 1

Garrett

050202010020

39.67943

-79.35317

39.68632

-79.38164

4.00

4.00

2007

Broad Creek 1

Harford

021202050339

39.67899

-76.35243

39.66468

-76.32487

4.00

4.17

2008

Bynum Run UT 1

Harford

021307041131

39.50923

-76.27523

39.50505

-76.28355

4.33

4.00

2012

Cattail Branch UT 1

Harford

021202020328

39.62017

-76.49403

39.63521

-76.49927

5.00

4.33

2007

Deer Creek 2

Harford

021202020329

39.67564

-76.45429

39.67445

-76.44291

4.00

4.67

2003

Deer Creek 3

Harford

021202020324

39.63225

-76.41051

39.61776

-76.39938

4.33

5.00

2003

Deer Creek 4

Harford

021202020322

39.59924

-76.26823

39.60333

-76.24910

4.33

4.33

2008

Deer Creek 5

Harford

021202020330

39.68097

-76.51724

39.67993

-76.50004

4.00

4.00

2008

Deer Creek 6

Harford

021202020327

39.65641

-76.43661

39.65238

-76.43784

4.00

5.00

2008

Deer Creek 7

Harford

021202020322

39.61660

-76.23174

39.62119

-76.21763

4.33

4.00

2009

Deer Creek 8

Harford

021202020327

39.64722

-76.43147

39.63217

-76.41041

4.00

4.33

2007

Deer Creek UT 1

Harford

021202020330

39.64980

-76.55578

39.67578

-76.54223

4.33

4.00

2007

Deer Creek UT 2

Harford

021202020321

39.58866

-76.20168

39.61740

-76.19373

4.33

5.00

2007

Deer Creek UT 3

Harford

021202020324

39.65935

-76.39446

39.64010

-76.35041

4.67

4.00

2007

Falling Branch 1

Harford

021202020329

39.72913

-76.46723

39.67453

-76.44299

4.00

4.33

2007

Hollands Branch 1

Harford

021202020322

39.64115

-76.24400

39.62126

-76.21756

4.00

4.67

2007

Little Deer Creek 1

Harford

021202020328

39.64640

-76.50645

39.65453

-76.49075

4.67

4.33

2008

Little Deer Creek 2

Harford

021202020328

39.65455

-76.49075

39.66009

-76.48109

4.00

4.00

2011

Little Deer Creek UT 1

Harford

021202020328

39.62878

-76.48475

39.66009

-76.48109

4.67

4.33

2008

Otter Point Creek 1

Harford

021307021130

39.43296

-76.29982

39.43281

-76.28558

4.33

4.14

2003

Wet Stone Branch 1

Harford

021202020327

39.63021

-76.45688

39.64721

-76.43147

4.67

4.33

2007

Carrolls Branch 1

Howard

021331060960

39.19818

-76.95531

39.19474

-76.93510

4.00

4.67

2007

Dorsey Branch 1

Howard

021311080968

39.28402

-77.00921

39.26105

-77.04475

4.00

5.00

2007

Patuxent River UT 2

Howard

021311070942

39.18842

-76.97725

39.16340

-76.97520

4.06

4.44

2007

Rocky Gorge Reservoir UT 1

Howard

021311070941

39.17385

-76.96164

39.15066

-76.96862

4.67

4.00

2007

South Branch Patapsco River UT 1

Howard

021309081022

39.34471

-76.96235

39.34836

-76.95941

4.33

5.00

2007

Cypress Branch 1

Kent

021305100427

39.30475

-75.74799

39.28812

-75.78414

4.00

4.14

2009

Cypress Branch 2

Kent

021305100427

39.28429

-75.79552

39.27214

-75.81757

4.67

4.14

2003

East Fork Langford Creek UT 1

Kent

021305060408

39.21050

-76.13505

39.19893

-76.11633

4.67

4.14

2021

Fannels Branch 1

Kent

021305060409

39.189562

-76.107898

39.187236

-76.113317

4.17

4.00

2021

Morgan Creek UT 1

Kent

021305090415

39.306198

-76.016172

39.289815

-76.020911

4.27

4.00

2010

Goshen Run UT 1

Montgomery

021402080864

39.21470

-77.17439

39.21709

-77.14649

4.00

4.75

2003

Patuxent River UT 1

Montgomery

021311080969

39.28851

-77.19257

39.28496

-77.13996

4.17

5.00

2007

Bald Hill Branch 1

Prince George's

021311030925

38.99228

-76.84371

38.92241

-76.82020

4.00

4.14

2007

Beaverdam Creek 1

Prince George's

021402050823

39.02370

-76.85045

39.02190

-76.85974

4.33

4.43

2007

Beaverdam Creek 2

Prince George's

021402050823

39.02287

-76.86218

39.01585

-76.89775

4.33

4.71

2021

District Branch 1

Prince George's

021311020917

38.866772

-76.719393

38.854804

-76.691683

4.34

4.00

2007

Mataponi Creek UT 1

Prince George's

021311020905

38.72979

-76.82511

38.71989

-76.79437

4.00

4.43

2003

Piscataway Creek 1

Prince George's

021402030803

38.73428

-76.86811

38.73258

-76.87590

4.67

4.43

2007

Piscataway Creek 2

Prince George's

021402030799

38.70638

-76.97208

38.69906

-76.98589

4.33

4.14

2007

Rock Creek 1

Prince George's

021311010904

38.69443

-76.75155

38.69093

-76.72613

4.67

4.71

2021

Timothy Branch 1

Prince George's

021401110787

38.710667

-76.854371

38.664667

-76.878959

4.50

4.14

2009

Turkey Branch 1

Prince George's

021311030921

38.84980

-76.84000

38.85763

-76.78847

4.67

4.14

2008

Alder Branch 1

Queen Anne's

021305070395

39.07879

-76.06344

39.07197

-76.07868

4.67

4.71

2003

Andover Branch 1

Queen Anne's

021305100425

39.22355

-75.76977

39.23043

-75.78289

4.17

4.57

2009

Andover Branch 2

Queen Anne's

021305100425

39.23044

-75.78285

39.24174

-75.79593

4.33

5.00

2007

Andover Branch UT 1

Queen Anne's

021305100425

39.21407

-75.80767

39.24699

-75.82277

4.67

4.71

2007

Blockston Branch UT 1

Queen Anne's

021304050529

38.98971

-75.99870

38.98086

-75.97180

4.00

4.14

2003

Browns Branch 3

Queen Anne's

021305080403

39.15968

-75.92076

39.16360

-75.95177

4.33

5.00

2007

Granny Finley Branch 1

Queen Anne's

021305080399

39.08786

-75.95688

39.11766

-76.04025

4.00

4.00

2011

Gravel Run 1

Queen Anne's

021305070397

39.03535

-76.03710

39.05027

-76.06391

4.00

4.02

2011

Island Creek 1

Queen Anne's

021305080398

39.08896

-76.05355

39.11732

-76.06863

4.33

4.14

2008

Mill Stream Branch 1

Queen Anne's

021305070396

39.01998

-76.03938

39.02288

-76.06394

4.67

4.43

2007

Norwich Creek 1

Queen Anne's

021304050522

38.97574

-76.01146

38.95164

-75.99614

4.67

4.71

2011

Norwich Creek 3

Queen Anne's

021304050522

38.94203

-75.99741

38.92547

-75.97541

4.00

4.14

2003

Red Lion Branch 1

Queen Anne's

021305100419

39.22756

-75.90160

39.23418

-75.90438

4.22

4.43

2003

Red Lion Branch 2

Queen Anne's

021305100419

39.18442

-75.89387

39.20305

-75.89646

4.27

4.43

2007

Red Lion Branch 3

Queen Anne's

021305100419

39.20657

-75.89344

39.22756

-75.90160

4.50

4.57

2007

Red Lion Branch UT 1

Queen Anne's

021305100420

39.17411

-75.86903

39.18442

-75.89387

4.33

4.14

2007

Southeast Creek 1

Queen Anne's

021305060401

39.13192

-75.97889

39.13975

-75.98786

4.67

4.43

2008

Southeast Creek 2

Queen Anne's

021305080401

39.13989

-75.98794

39.14592

-75.98986

4.17

4.29

2008

Southeast Creek UT 2

Queen Anne's

021305080401

39.11759

-75.95646

39.11650

-75.96562

4.33

4.71

2008

Southeast Creek UT 3

Queen Anne's

012305080401

39.11651

-75.96563

39.13035

-75.97788

4.44

4.71

2007

Three Bridges Branch 1

Queen Anne's

021305070397

39.05323

-76.03293

39.05027

-76.06391

4.17

4.43

2007

Wye East River UT 1

Queen Anne's

021305030436

38.98305

-76.08860

38.94966

-76.10908

4.67

4.71

2008

Wye East River UT2

Queen Anne's

021305030436

38.99155

-76.03511

38.99231

-76.07751

4.00

4.14

2011

Norwich Creek 2

Queen

Anne's/Talbot

021304050522

38.92547

-75.97541

38.91998

-75.96930

4.33

4.71

2007

Burnt Mill Creek 1

Saint Mary's

021401040724

38.36375

-76.65992

38.34639

-76.64235

4.00

4.43

2007

Burnt Mill Creek UT 1

Saint Mary's

021401040724

38.38129

-76.66945

38.37031

-76.65860

4.00

4.71

2007

Chaptico Run 1

Saint Mary's

021401060736

38.37100

-76.75610

38.36489

-76.78197

4.67

4.43

2012

Fisherman Creek 1

Saint Mary's

021401030712

38.21065

-76.40307

38.19762

-76.41925

4.67

4.00

2008

Forrest Hall Branch 1

Saint Mary's

021401060742

38.42298

-76.72010

38.38460

-76.74243

5.00

4.14

2007

Hayden Run 1

Saint Mary's

021401060742

38.43916

-76.73770

38.41884

-76.74437

4.33

4.43

2009

Hilton Run 1

Saint Mary's

021401030715

38.24596

-76.46944

38.22383

-76.46161

4.00

4.43

2007

Johns Creek 1

Saint Mary's

021401030714

38.23144

-76.52353

38.23587

-76.49717

4.34

4.43

2008

McIntosh Run 1

Saint Mary's

021401040721

38.32959

-76.63552

38.32555

-76.64338

4.00

4.86

2008

McIntosh Run 2

Saint Mary's

021401040721

38.32555

-76.64337

38.31354

-76.65517

4.00

4.43

2007

Saint Clements Bay UT 1

Saint Mary's

021401050726

38.32481

-76.69673

38.29953

-76.71233

4.33

4.71

2007

Saint Clements Creek 1

Saint Mary's

021401050728

38.34856

-76.73058

38.33257

-76.72384

4.17

4.43

2011

Saint Clements Creek 2

Saint Mary's

021401050730

38.358656

-76.727069

38.348588

-76.730607

4.33

4.71

2007

Saint Mary's River 1

Saint Mary's

021401030717

38.27485

-76.51438

38.25265

-76.50721

4.00

4.71

2010

Saint Mary's River UT 3

Saint Mary's

021401030719

38.27771

-76.51543

38.30595

-76.52726

4.00

4.43

2003

Warehouse Run 1

Saint Mary's

021401030714

38.20522

-76.49843

38.22150

-76.48619

4.67

4.43

2007

Dividing Creek 1

Somerset, Worcester

021302040064

38.21149

-75.57593

38.18183

-75.54768

4.33

5.00

2007

Highfield Creek 1

Talbot

021304050517

38.89321

-75.97110

38.89050

-75.96166

4.17

4.72

2007

Jadwins Creek 1

Talbot

021304050516

38.84859

-75.97328

38.83436

-75.93300

4.00

4.43

2007

Kings Creek 1

Talbot

021304040473

38.79141

-76.02193

38.79367

-75.99319

4.67

4.71

2007

Skipton Creek UT 1

Talbot

021305030434

38.88226

-76.04616

38.87955

-76.05344

4.00

4.43

2003

Adkins Race 1

Wicomico

021302030648

38.33427

-75.37668

38.31965

-75.35493

4.67

4.15

2008

Little Burnt Branch 1

Wicomico

021303040567

38.43934

-75.62701

38.41103

-75.59458

4.00

5.00

2007

Nassawango Creek 1

Wicomico

021302050668

38.31299

-75.46914

38.30312

-75.46400

4.17

4.57

2007

Plum Creek 1

Wicomico

021303050584

38.51243

-75.70759

38.53541

-75.74588

4.00

4.43

2010

Little Mill Creek 1

Worcester

021301060672

38.02677

-75.46306

38.04621

-75.42736

4.00

4.71

2007

Nassawango Creek 2

Worcester

021302050668

38.28361

-75.45386

38.25998

-75.46283

4.67

4.21

2008

Nassawango Creek 3

Worcester

021302050667

38.26000

-75.46286

38.23505

-75.47196

4.56

4.62

Md. Code Regs. 26.08.02.04-2

Regulations .04-2 adopted effective 49:22 Md. R. 980, eff. 10/31/2022