26.08.02.04-1

.04-1 Antidegradation Policy Implementation Procedures.

A. Where water quality is better than the minimum requirements specified by the water quality standards, that water quality shall be maintained. These waters are listed by the Department as Tier II waters. An antidegradation review of new or proposed amendments to water and sewer plans (county plans) and discharge permits is required to assure consistency with antidegradation requirements.

B. General. An applicant for proposed amendments to county plans or discharge permits for discharge to Tier II waters that will result in a new, or an increased, permitted annual discharge of pollutants and a potential impact to water quality, shall evaluate alternatives to eliminate or reduce discharges or impacts. If impacts are unavoidable, an applicant shall prepare and document a social and economic justification. The Department shall determine, through a public process, whether these discharges can be justified.

C. Compilation and Maintenance of the List of High Quality Waters. When the water quality of a water body is better than that required by water quality standards to support the existing and designated uses, the Department shall list the water body as a Tier II water body. All readily available information may be considered to determine a listing. The Department shall compile and maintain a public list of the waters identified as Tier II waters. 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 §D(2) and (3) of this regulation.

D. Waters Not Listed as Tier II.

(1) All water bodies not listed as Tier II or as Outstanding National Resource Waters (Tier III, described and defined in Regulation .04-2 of this chapter) are Tier I.

(2) 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.

(3) Waters may be listed as Tier II, if the exclusion under §D(2) of this regulation is not applicable 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) Biological assessment data indicate water quality is within 20 percent of the maximum attainable value of the index of biological integrity.

(4) 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).

E. 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.

F. Need for Tier II Antidegradation Review.

(1) Permits. Before submitting an application for a new discharge permit or major modification of an existing discharge permit (for example, expansion), the discharger or applicant shall determine whether the receiving water body is Tier II or, if a Tier II determination is pending, by consulting the list of Tier II waters.

(2) Water and Sewer Plans (County Plans). As part of its continuing planning process, the Department shall review proposed amendments to county plans for any new or major modifications to discharges to Tier II bodies of water. If a proposed amendment to a County Plan results in a new discharge or a major modification of an existing discharge to a Tier II water, the applicant shall perform a Tier II 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 current 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 to a Tier II water body (no-discharge alternative). The analysis shall include cost data and estimates to determine the cost effectiveness of the alternatives.

(2) If a cost effective alternative to direct discharge is reasonable, the alternative is required as a condition of the discharge permit or amendment to the county plan.

(3) If the Department determines that the alternatives that do not require direct discharge to a Tier II water body are not cost effective, the applicant shall:

(a) Provide the Department with plans to configure or structure the discharge to minimize the use of the assimilative capacity of the water body, which is the difference between the water quality at the time the water body was designated as Tier II (baseline) and the water quality criterion; and

(b) If an impact cannot be avoided, or no assimilative capacity remains as described in §G(3)(a) of this regulation, provide the Department with a social and economic justification for permitting limited degradation of the water quality.

(4) An applicant shall update an antidegradation review when applying for a new permit or major modification to an existing permit.

H. Potential Determinations Resulting from Antidegradation Reviews.

(1) If there is a cost-effective alternative to direct discharge, the applicant shall implement the no discharge alternative and it shall be a condition of the discharge permit.

(2) If there is no cost-effective alternative to direct discharge, 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.

(3) If there is no cost-effective, no-discharge alternative, and minimization of the use of assimilative capacity is adequate, but the social and economic justification (SEJ) is not adequately performed, the applicant shall revise the SEJ.

(4) If there is no cost-effective alternative to direct discharge, minimization of the use of assimilative capacity is adequate, the SEJ is adequately performed but does not justify the water quality impact, the proposed amendment to the county plan or discharge permit application shall be denied.

(5) If there is no cost-effective alternative to direct discharge, all reasonable efforts have been made to minimize the use of assimilative capacity, and the SEJ is adequate and justifies the discharge, the proposed amendment to the county plan or discharge permit shall be granted subject to other applicable requirements.

I. Wetlands Permits and Water Quality Certifications. Maryland's wetlands and waterways regulatory process, governed by the Tidal Wetlands (COMAR 26.24.01—26.24.05), Nontidal Wetlands (COMAR 26.23.01—26.23.06), and Waterway Construction (COMAR 26.17.04) regulations, satisfies the requirements of this regulation.

J. Social and Economic Justification (SEJ).

(1) An SEJ shall be submitted if:

(a) No cost effective alternative to the discharge 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)(a) of this regulation is cumulatively reduced by more than 25 percent from the baseline water quality determined when the water body was listed as Tier II.

K. 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 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 §K(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.

L. 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 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.

M. Department Responsibilities.

(1) The Department shall determine whether the SEJ 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 necessary for 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 or permit would substantially impact future development within the watershed.

(3) The Department shall propose a tentative determination to either issue or deny the permit application. If the tentative determination is made to issue a permit, 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.

N. Public Participation.

(1) Public participation for a permit to discharge to a Tier II water 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.

O. List of Tier II Waters.

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
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
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
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
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
2003 Timber Run 1 Baltimore Co. 021309071048 39.44400 -76.84151 39.43794 -76.86878 4.48 4.67
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 4.00 4.67
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
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
2003 Bear Creek 1 Garrett 050202010018 39.65018 -79.28886 39.65046 -79.298011 4.43 4.07
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 4.00 4.50
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
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
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
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
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
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 Hillton 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
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

P. Flow Chart.