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26.08.02.00.htm 26.08.02.00. Title 26 DEPARTMENT OF THE ENVIRONMENT Subtitle 08 WATER POLLUTION Chapter 02 Water Quality Authority: Environment Article, §9-303.1, 9-313―9-316, 9-319, 9-320―9-325, 9-327, and 9-328, Annotated Code of Maryland
26.08.02.01.htm 26.08.02.01. 01 Surface Water Quality Protection.. A. Purpose. To protect surface water quality, this State shall adopt water quality standards to:. 1) Protect public health or welfare;. 2) Enhance the quality of water;. 3) Protect aquatic resources; and. 4) Serve the purposes of the Federal Act.. B. Water Quality Standards.. 1) The surface water quality standards consist of three parts:. a) Designated uses of the waters of this State;.
26.08.02.02.htm 26.08.02.02. 02 Designated Uses.. A. General.. 1) The determination of the designated use of a water body shall include consideration of the following factors:a) Existing conditions; and. b) Potential uses which may be made possible by anticipated improvements in water quality.. 2) The actual uses of surface water are not limited to those designated in this chapter. Any reasonable and lawful use is permitted provided that the surface water quality is not adversely affected by the use.
26.08.02.02-1.htm 26.08.02.02-1. 02-1 Support of Estuarine and Marine Aquatic Life and Shellfish Harvesting.. A. Class II includes the subcategories of designated uses described in this section.. B. Shellfish Harvesting. This subcategory includes waters where there are:. 1) Actual or potential areas for the harvesting of oysters, soft-shell clams, hard-shell clams, or brackish water clams; or2) Actual or potential areas suitable for the propagation or storage of oysters, hard-shell clams, s
26.08.02.03.htm 26.08.02.03. 03 Surface Water Quality Criteria.. A. Applicability.. 1) Surface water quality criteria shall apply:. a) In fresh water streams and rivers:. i) For toxic substances, under the conditions stipulated in Regulations .03-2A and .05A, and. ii) Under design stream flow for all other substances;. b) In tidal waters:. ii) Under average tidal conditions during design stream flows for all other substances;. c) Outside of any mixing zones which may be designated by the Department..
26.08.02.03-1.htm 26.08.02.03-1. 03-1 Toxic Substance Water Quality Criteria for Surface Waters.. A. General.. 1) Numerical toxic substance criteria for ambient surface waters are established to protect human health or aquatic life.2) Four types of numerical toxic substance criteria shall be adopted. The purpose of these criteria is to protect:a) Human health through ingestion of public water supplies;. b) The wholesomeness of fish for human consumption;.
26.08.02.03-2.htm 26.08.02.03-2. 03-2 Numerical Criteria for Toxic Substances in Surface Waters.. A. Numerical toxic substance criteria shall be applied:. 1) In intermittent streams, at the end of the discharge pipe; and. 2) In all other water bodies, at the edge of the mixing zones determined in accordance with Regulation .05C―E of this chapter.B. Acceptable laboratory methods for the detection and measurement of toxic substances shall be specified by the Department.C. Site-specific numerica
26.08.02.03-3.htm 26.08.02.03-3. 03-3 Water Quality Criteria Specific to Designated Uses.. A. Criteria for Class I Waters ― Water Contact Recreation and Protection of Nontidal Warmwater Aquatic Life.1) Bacteriological.. a) Table 1. Bacteria Indicator Criteria for Frequency of Use.. Steady State Geometric Mean Indicator Density. Single Sample Maximum Allowable Density. Indicator. All Areas. Frequent Full Body Contact Recreation Upper 75% CL). Moderately Frequent Full Body Contact Recreation Upper 82% CL).
26.08.02.03-4.htm 26.08.02.03-4. 03-4 Biological Water Quality Criteria.. A. Quantitative assessments of biological communities in streams (biological criteria) may be used separately or in conjunction with the chemical and physical criteria promulgated in this chapter to assess whether water quality is consistent with the purposes and uses in Regulations .01 and .02 of this chapter.B. The results of the quantitative assessments of biological communities shall be used for purposes of water quality assessme
26.08.02.04.htm 26.08.02.04. 04 Anti-Degradation Policy.. A. Waters of this State shall be protected and maintained for existing uses and the basic uses of water contact recreation, fishing, protection of aquatic life and wildlife, and agricultural and industrial water supply as identified in Class I.B. Certain waters of this State possess an existing quality that is better than the water quality standards established for them. The quality of these waters shall be maintained unless:1) The Department determi
26.08.02.04-1.htm 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
26.08.02.04-2.htm 26.08.02.04-2. 04-2 Outstanding National Resource Water.. A. Scope. There are many tools available to protect special resources including the Smart Growth Initiative, Rural Legacy Program, local comprehensive plans, Program Open Space, and others that work through the private sector and nongovernment organizations. This regulation applies the Tier III ONRW designation only where the most stringent protection is necessary and appropriate to protect and maintain existing exception
26.08.02.05.htm 26.08.02.05. 05 Surface Water Mixing Zones.. A. General.. 1) Effluents may be mixed with surface waters in the mixing zone.. 2) Effluents may not be treated in the mixing zone.. 3) Lethality to passing organisms may not occur in any mixing zone.. 4) Surface waters outside the mixing zones shall meet the water quality criteria for that particular body of water.5) Mixing zones may be designated by the Department provided that the following requirements are met outside the mixing zones:
26.08.02.05-1.htm 26.08.02.05-1. 05-1 Intermittent Streams.. A. New wastewater discharges to intermittent streams are not permitted after the effective date of this regulation except to resolve existing on-site sewage disposal failures when other alternatives are not available.B. Effluent limitations for discharge to intermittent streams may not be less stringent than:. 1) The minimum national effluent guidelines established under the Federal Act;. 2) Those levels necessary to maintain the water qu
26.08.02.06.htm 26.08.02.06. 06 Review and Revision.. A. Procedure. Under State law and §303(c) of the Federal Act, the Department shall review and revise its water quality standards as appropriate. Changes shall be transmitted to the EPA.B. Hearing Transcripts. Transcripts of public hearings on proposed standards revisions shall be available for public inspection in the main office of the Department. Transcripts shall be furnished to the EPA upon request.
26.08.02.07.htm 26.08.02.07. 07 Surface Water Use Designation.. A. All surface waters of this State shall be protected for water contact recreation, fishing, and protection of aquatic life and wildlife.B. For interstate waters, these classifications apply only to those waters within this State.. C. A stream segment is a distinct portion of a sub-basin.. D. If the stream segment limits are specified as beginning at a specific point, streams terminating downstream of this point are not included in the s
26.08.02.08.htm 26.08.02.08. 08 Stream Segment Designations.. A. General.. 1) All geographic coordinates provided within this regulation are expressed in decimal degrees latitude and longitude using the North American Datum of 1983. For most Class I, I-P, III, III-P, IV, or IV-P waters, the limits indicate the most downstream point or line for the segment. In some cases, an upstream point and a downstream point are provided to describe those uses that may apply only to a limited segment of a wat
26.08.02.09.htm 26.08.02.09. 09 Ground Water Quality Standards.. A. Discharge Approval Required.. 1) Any discharge or disposal of waters or wastewaters into the underground waters of the State requires the approval of the Department. The approval, if granted, will contain limitations and requirements deemed necessary by the Department to protect the public health and welfare and to prevent pollution of ground and surface waters.2) A separate State discharge permit is required for:. a) Wastewater effluents d
26.08.02.10.htm 26.08.02.10. 10 Water Quality Certification.. A. General.. 1) The Federal Act prohibits the issuance of a federal permit or license to conduct any activity which may result in any discharge to navigable waters unless the applicant provides a certification from this State that the activity does not violate State water quality standards or limitations. This regulation establishes the procedures under which this certification will be issued.2) Discharges permitted by the Department under th
26.08.02.11.htm 26.08.02.11. 11 General Water Quality Certifications.. A. General Water Quality Certification (GWQC) for Marsh Creation Projects.. 1) Scope of Activity.. a) Definition. Marsh creation projects are defined as the vegetative stabilization of tidal shorelines and nontidal stream banks that are subject to erosion.b) Exception. The projects certified by this GWQC do not include marshes created for storm water management purposes.
26.08.02.12.htm 26.08.02.12. 12 General Water Quality Certification (GWQC) for the Construction of Bulkheads.. A. Scope of Activity.. 1) Definition. "Bulkheads" means the structural stabilization of tidal and nontidal shorelines that are subject to erosion.2) Exceptions.. a) Bulkheads authorized by this GWQC do not include structures which allow passage of a discharge pipe of any kind, such as storm water outfalls and those outfalls regulated under State discharge permits.
26.08.02.13.htm 26.08.02.13. 13 General Water Quality Certification (GWQC) for the Placement of Riprap for Shore Protection.. A. Scope of Activity.. 1) Definition. Riprap revetments are defined as:. a) A facing of loose stone, brick, or masonry placed for the purpose of stabilizing tidal and nontidal shorelines that are subject to erosion; andb) Being constructed with materials of suitable size and weight to prevent their transport into the waterway.2) Exceptions.. a) Riprap revetments auth
26.08.02.9999.htm 26.08.02.9999. Administrative History Effective date: September 1, 1974 (1:1 Md. R. 33). COMAR 10.50.01.02, .04, and .03 recodified to COMAR 26.08.02.01, .03, and.04, respectively. Stream Segment Classification Tables codified as Regulation .02. Regulation .01 amended effective April 21, 1978 (5:8 Md. R. 593) July 11, 1980 (7:14 Md. R. 1348) December 3, 1984 (11:24 Md. R. 2070)Regulation .01D amended effective May 24, 1982 (9:10 Md. R. 1022). Regulation .01I amended effective June 6, 1983 (10
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