FINDINGS FOR THE SOUTH CAROLINA COASTAL NONPOINT PROGRAM FOREWORD This document contains the findings for the coastal nonpoint pollution control program submitted by the State of South Carolina pursuant to Section 6217(a) of the Coastal Zone Act Reauthorization Amendments of 1990 (CZARA). The findings are based on a review of the South Carolina Coastal Nonpoint Pollution Control Program, July 1995 and supplemental material provided by South Carolina subsequent to the program submittal. The National Oceanic and Atmospheric Administration (NOAA) and the U.S. Environmental Protection Agency (EPA) reviewed this information and evaluated the extent to which it conforms with the requirements of CZARA. NOAA and EPA commend South Carolina on the substantial amount of time and effort put into developing your program and we appreciate the commitment you have shown to complete an ambitious task with limited resources. We will continue to work with coastal states and territories to ensure that these findings represent an accurate assessment of current state and territory abilities and efforts to address coastal nonpoint source pollution. We recognize that there may be further administrative changes to the coastal nonpoint program that will impact these findings and we assure you that, once such changes are finalized, we will review these findings in light of the changes and make any necessary adjustments. APPROVAL DECISION NOAA and EPA approve the coastal nonpoint pollution control program submitted by the State of South Carolina pursuant to Section 6217(a) of the Coastal Zone Act Reauthorization Amendments of 1990, subject to certain conditions. This document provides the specific findings used by NOAA and EPA as the basis for the decision to approve South Carolina's program. It also provides the rationale for the findings and includes conditions that will need to be met for South Carolina to receive final approval of its program. The timeframes associated with conditions become effective on the date of the approval letter for these findings. INTRODUCTION This document is organized by the major nonpoint source categories and subcategories identified in the section 6217(g) guidance and the administrative elements identified in the program guidance (including the boundary for the 6217 management area). Where appropriate, NOAA and EPA have grouped categories and subcategories of management measures into a single finding. The structure of each finding follows a standard format. Generally, the finding is that the state program includes or does not include management measures in conformity with the (g) guidance and includes or does not include enforceable policies and mechanisms to ensure implementation. In some cases, the finding reflects that the state has identified a back-up enforceable policy, but has not demonstrated the ability of the authority to ensure implementation. For further understanding of terms in this document, the reader is referred to the following: Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters (EPA, January 1993) Coastal Nonpoint Pollution Control Program: Program Development and Approval Guidance (NOAA and EPA, January 1993) Flexibility for State Coastal Nonpoint Programs (NOAA and EPA, March 1995) The references in this document refer to the South Carolina Coastal Nonpoint Pollution Control Program, July 1995 ("program submittal"). NOAA and EPA have written this document as succinctly as possible. We have relied upon, but do not repeat here, the extensive information that the State has included in its program submittal. Further information and analysis, including material provided by South Carolina subsequent to the program submittal, is contained in the administrative record for this approval decision and may be reviewed by interested parties at the following locations: EPA/Office of Wetlands, Oceans and Watersheds Assessment and Watershed Protection Division Nonpoint Source Control Branch 401 M St., SW (4503-F) Washington, DC 20460 Contact: Dov Weitman (202-260-7088) NOAA/Office of Ocean and Coastal Resource Management Coastal Programs Division SSMC-4, N/ORM3 1305 East-West Highway Silver Spring, MD 20910 Contact: Joelle Gore (301/713-3117, x177) U.S. EPA, Region 4 61 Forsyth Street, SW Atlanta, GA 30303 CONTACT: Robert B. Howard (404-562-9370) I. BOUNDARY FINDING: South Carolina's existing coastal zone boundary is sufficient to control the land and water uses that have or are reasonably expected to have a significant impact on the coastal waters of South Carolina. RATIONALE: In correspondence provided to NOAA and EPA subsequent to the State's program submission, the State identified the existing coastal zone as the boundary of the 6217 management area. The existing coastal zone encompasses the eight coastal counties of Beaufort, Jasper, Colleton, Dorchester, Charleston, Berkeley, Georgetown and Horry. South Carolina's Coastal Nonpoint Pollution Control Program serves as an update and expansion of the State's existing Nonpoint Source Management Program. II. AGRICULTURE FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance. South Carolina has identified backup enforceable policies and mechanisms for implementing the management measures, but the State has not demonstrated the ability of these authorities to ensure implementation throughout the 6217 management area. CONDITION: Within one year, South Carolina will develop a strategy (in accordance with section XIV, page 14) to implement the agricultural management measures throughout the 6217 management area. RATIONALE: South Carolina implements the agricultural management measures through a number of existing voluntary programs including the development of conservation plans under the State's Soil and Water Conservation Districts Law, which is administered by the SC Land Resources and Conservation Districts Division (LRCD), consistent with the National Resource Conservation Service (NRCS) Field Office Technical Guide. In 1993, the LRCD also adopted a policy stating that the Division along with the soil and water conservation districts would assist the South Carolina Office of Ocean and Coastal Resource Management (SCOCRM) in the implementation of the 6217 program. Research programs in Clemson University, including an Integrated Pest Management Program and Sustainable Research and Education Program, provide new technology to develop agricultural practices to enhance water quality. Clemson University Cooperative Extension Program provides the technical assistance and education for these research programs and practices directly to the farming community. The Pollution Control Act (48-1-10 et seq. ), which provides broad enforcement authority to control nonpoint sources, has been identified by the State as a backup authority when a more specific authority does not exist. However, South Carolina has not described the mechanism for using the Pollution Control Act to achieve implementation of the management measures. The Pesticide Control Act (46-13-10 et seq.) and Chemigation Law (46-1-40), both administered and enforced by Clemson University, provide limited authority to address parts of the pesticide and irrigation management measures. The State is encouraged to pursue a requirement for anti-backflow devices on hoses at mixing and loading locations, as proffered by the State. South Carolina currently uses its authority under the National Pollutant Discharge System (NPDES) to issue permits for confined animal facilities in any case where the State determines that the facility is a significant contributor of pollution. Permit conditions require either the collection of runoff in a lagoon or land application of waste in accordance with NRCS standards and specifications. The nutrient management measure is implemented by Cooperative Extension Service through technical assistance. However, some of the technical support materials may not be consistent with the measure and should be re-examined. For example, the Cooperative Extension Service's bulletin on land application of animal manure contains several examples which lead to excessive application of phosphorus. The State is encouraged to include in its strategy the necessary mechanisms for ensuring that the State administered NPDES permitting program and associated technical assistance efforts work together to fully achieve the management measures for confined livestock operation and nutrient management. The State will also target the implementation of management measures through its Watershed Water Quality Management Strategy Program (WWQMS) for priority watershed units where nonpoint pollution is causing impacts. The State will develop strategies for all five large watersheds by 1996. Although the WWQMS is a water-quality based, rather than technology-based, program, the State is encouraged to continue augmenting its voluntary programs with this approach. III. FORESTRY FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance. The State's program identifies a backup enforceable policy and mechanism for implementing the management measures, but the State has not demonstrated the ability of the authority to ensure implementation throughout the 6217 management area. CONDITION: Within one year, South Carolina will develop a strategy (in accordance with section XIV, page 14) to ensure implementation of the forestry management measures throughout the 6217 management area. RATIONALE: South Carolina's has several voluntary efforts in place to implement the forestry management measures, including South Carolina's Best Management Practices for Forestry EPA- approved BMP manual, the Logger Accreditation Program, BMP education and training programs, and a monitoring program that has shown increasing compliance rates with timber harvesting BMPs since 1990. These voluntary measures are backed by South Carolina's Pollution Control Act (48-1-10 et seq.), which provides a general backup enforcement authority that the State can use in response to complaints regarding the impact of forestry activities on water quality. A trial Courtesy Exam Program for interested landowners and operators is being conducted in the coastal region. This two year effort will conclude with another summary report that details voluntary compliance with harvesting BMPs. III. URBAN A. NEW DEVELOPMENT FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance and enforceable polices and mechanisms to ensure implementation throughout the 6217 management area, except the program does not include measures and authorities for (1) the maintenance of post development peak discharge rates and volumes at predevelopment levels for sites disturbing less than two acres, and (2) a total suspended solids loading reduction of 80 percent for sites disturbing less than 10 acres. South Carolina has identified a backup enforceable policy and mechanism for sites not covered under the State's existing program, but the State has not demonstrated the ability of the authority to ensure implementation throughout the 6217 management area. CONDITION: Within two years, South Carolina will include in its program management measures and enforceable policies and mechanisms for (1) the maintenance of post development discharge rates and volumes at predevelopment levels for sites disturbing less than two acres and (2) for a total suspended solids loading reduction of 80 percent for sites disturbing less than 10 acres. Within one year, South Carolina will develop a strategy (in accordance with section XIV, page 14) to ensure implementation of the management measures throughout the 6217 management area on sites not covered under the State's existing program. RATIONALE: South Carolina's Stormwater Management and Sediment Reduction regulations require stormwater plans for all land disturbing activities, regardless of size, and require, in the coastal zone, a permit prior to any land disturbance, for all projects within one-half mile of a receiving waterbody, regardless of size. For sites of two or more acres, the South Carolina Department of Health and Environmental Control must approve a permit prior to any land disturbance. Projects between two and five acres must achieve post development peak discharge rates that do not exceed predevelopment discharge rates for the 2- and 10-year frequency 24-hour duration storm event (R.72-307(c)(4)(a), (I)(1)(e)(1)). Projects greater than 10 acres must also construct sediment basins to achieve a total suspended solids removal efficiency of 80 percent (R.72-307(c)(5)(b)). The regulations, however, do not provide that sites under 10 acres achieve a total suspended solids removal efficiency of 80 percent (R.72-307(H), (I)). The State has identified the Pollution Control Act (48-1-10 et seq,) as providing a general backup enforcement authority where the stormwater regulations are not applicable. B. WATERSHED PROTECTION, SITE DEVELOPMENT and EXISTING DEVELOPMENT FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance, except it does not include management measures for watershed protection to avoid conversion of areas susceptible to erosion and sediment loss, and to protect the natural integrity of waterbodies and natural drainage systems; or management measures for site development to limit land disturbance activities. South Carolina's program includes a backup enforceable policy and mechanism to implement these management measures, but the State has not demonstrated the ability of the authority to ensure implementation throughout the 6217 management area. CONDITION: Within three years, South Carolina will include in its program management measures in conformity with the 6217(g) guidance to avoid conversion of areas susceptible to erosion and sediment loss; protect the natural integrity of waterbodies and natural drainage systems; and limit land disturbance activities. Within one year, South Carolina will develop a strategy (in accordance with section XIV, page 14) to ensure implementation of the management measures throughout the 6217 management area. RATIONALE: South Carolina describes a number of programs and authorities that implement some of the components of the watershed protection and site development management measures. These include the Stormwater Management and Sediment Reduction Regulations, which allow local governments to request that a watershed be designated for special protection; the State's Coastal Zone Management Program, which can provide watershed protection through special area management planning; and the State's Watershed Water Quality Management Strategy (WWQMS), through which the South Carolina Bureau of Water Pollution Control manages its program on a watershed basis and develops management strategies for all five watersheds in the State. These programs, however, do not include provisions to avoid conversion of areas susceptible to erosion and sediment loss, protect the natural integrity of waterbodies and natural drainage systems, or limit land disturbance activities. The State identifies the Pollution Control Act (48-1-10 et seq.) as a general backup enforcement authority where the State's existing programs and authorities do not apply. The State's WWQMS provides a mechanism to address the existing development management measure. Under this program, the State will develop a strategy to address each of the five major watersheds. The strategies will include a discussion of the nonpoint source contributions to water quality, an identification of priority areas, and a BMP implementation strategy. The program is currently being implemented in Savannah-Salkehatchie watershed. In addition, the Stormwater Management and Sediment Reduction Rules enable localities to designate smaller watersheds for additional protection, although the rules do not specify measures or an implementation schedule. NOAA and EPA encourage the State to continue to develop these programs. C. CONSTRUCTION SITE EROSION AND SEDIMENT CONTROL FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance and enforceable policies and mechanisms to ensure implementation throughout the 6217 management area. RATIONALE: South Carolina's Stormwater Management and Sediment Reduction regulations require the use of erosion and sediment control plans for all land disturbing activities. (See the discussion under the new development management measure, above.) Required design standards and plan specificity depend on the size of the area disturbed. A Guide to Site Development and Best Management Practices for Storm Water Management and Sediment Control and the South Carolina Stormwater Management and Sediment Control Handbook for Land Disturbing Activities include information on the permit application process, minimum standards, design guidelines, best management practices, and engineering aids approved by the State that meet the components of this management measure. The SCDHEC is responsible for the implementation and supervision of the program and can issue stop work orders or levy fines. D. CONSTRUCTION SITE CHEMICAL CONTROL FINDING: South Carolina's program does not include management measures in conformity with the 6217(g) guidance. South Carolina's program includes a backup enforceable policy and mechanism, but the State has not demonstrated the ability of the authority to ensure implementation throughout the 6217 management area. CONDITION: Within two years, South Carolina will include in its program management measures for construction site chemical control in conformity with the 6217(g) guidance. Within one year, South Carolina will develop a strategy (in accordance with section XIV, page 14) to ensure implementation of the measure throughout the 6217 management area. RATIONALE: The Rules and Regulations for the Enforcement of the South Carolina Pesticide Control Act (R.27-1070 et seq.) regulate the application of both restricted-use and non-restricted pesticides, and the Hazardous Waste Management Act (44-56-10 et seq.) regulates the disposal and discharge of hazardous materials. The Pesticide Act, however, does not include fertilizers, and the Hazardous Waste Management Act does not cover other toxic substances that can be generated on construction sites such as oil, gasoline, paint, and sealers. In addition, the State's program does not provide for proper storage and disposal of toxic substances or the application of nutrients to establish and maintain vegetation without causing significant nutrient runoff to surface waters. Where these authorities are not applicable, however, the State has identified the Pollution Control Act (48-1-10 et seq.) as providing a general backup enforcement authority. E. NEW and OPERATING ONSITE DISPOSAL SYSTEMS (OSDS) FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance, except for management measures that address: 1) denitrification where nitrogen-limited surface waters may be adversely affected by excess nitrogen loadings from OSDS; 2) inspection and maintenance of existing OSDS; and 3) adequate separation distances between OSDS system components and groundwater that is closely hydrologically connected to surface waters. South Carolina's program includes enforceable policies and mechanisms to ensure implementation of the measures throughout the 6217 management area, except policies and mechanisms to ensure the implementation of the management measure for operation and maintenance of existing OSDS. CONDITION: Within three years, South Carolina will include in its program management measures in conformity with the 6217(g) guidance to address: 1) denitrification where nitrogen-limited surface waters may be adversely affected by excess nitrogen loadings from OSDS; 2) inspection and maintenance of existing OSDS systems; and, 3) adequate separation distances between OSDS system components and groundwater that is closely hydrologically connected to surface waters. Within two years, South Carolina will include in its program enforceable policies and mechanisms to ensure implementation of the management measure for operation and maintenance of existing OSDS. RATIONALE: South Carolina's Individual Waste Disposal System Rule (R.61-56) requires the Health Authority to issue a permit before construction begins on an OSDS. The regulations include provisions for site evaluation prior to construction, inspection of all commercial OSDS and some alternative and experimental systems, and post-construction inspection of all systems prior to final approval. The regulations also establish minimum siting and construction standards. However, the State's requirements for system siting do not meet the management measure. There is only a six inch separation requirement between the maximum high water table mark and the bottom of the proposed soil absorption trench or alternate system. This separation distance is inadequate to meet the new OSDS management measure, which requires OSDS be designed or sited at a density so as not to adversely affect surface waters or ground water that is closely hydrologically connected to surface waters. The State is currently developing a voluntary program for inspection and maintenance for existing OSDS within the designated coastal zone, but it has no means of ensuring that such inspection and maintenance will occur. NOAA and EPA encourage the State to implement the voluntary program and consider expanding implementation throughout the 6217 management area. However, the State will need to include in its program an enforceable policy and mechanism to ensure implementation throughout the 6217 management area. The State also does not have a program to address denitrification where nitrogen-limited surface waters may be adversely affected by excess nitrogen loadings from OSDS. F. POLLUTION PREVENTION FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance. RATIONALE: The Nonpoint Source Management Program administered by the SCDHEC and many programs of the Clemson University Cooperative Extension Service are devoted to pollution prevention. For example, SCDHEC produced Turning the Tide - A Citizens Guide to Reducing Nonpoint Source Pollution. South Carolina provided an extensive number of outreach activities with their program submittal. The Solid Waste Act has enforceable authorities to encourage recycling and use of recyclable materials and authority to regulate disposal and storage of used oil. G. ROADS, HIGHWAYS, AND BRIDGES FINDING: South Carolina's program includes management measures for roads, highways, and bridges in conformity with the 6217(g) guidance and enforceable policies and mechanisms to ensure implementation, except for construction site chemical control and operation and maintenance for private and local roads. CONDITION: Within three years, South Carolina will include in its program management measures and enforceable policies and mechanisms to address construction site chemical control and operation and maintenance for private and local roads. RATIONALE: The South Carolina Department of Transportation (SCDOT) and SCDHEC have responsibility for reviewing and approving planning, siting, and designs required by the Stormwater Management and Sediment Reduction regulations (R.72-300 et seq.) for roads, highways, and bridges projects causing land disturbance. Construction erosion and sediment control plans are required (R.72-305 and 307H), and although disturbances less than 2 acres require less oversight than larger projects, they still must meet basic stormwater and sediment control submission and certification requirements. SCDHEC's Stormwater Handbook includes a report, Engineering Aids and Design Guidelines for Control of Sediment in South Carolina, which is an excellent guide for specialists who must prepare and certify erosion and sediment control plans for larger sites. The State also requires consideration of runoff after construction during planning and design. For SCDOT projects, specifications for highway contract clauses require contractors to use fertilizers properly and prevent harmful pollutants from being washed or discharged into waters. However, for private and local roads, the State relies on the Pesticide Control Act (46-13-10 et seq.), which does not include regulations for fertilizers, and the Hazardous Waste Management Act (44-56-10 et seq.), which does not cover other toxic substances that can be generated such as oil, gasoline, paint, and sealers. In addition, the State's program does not provide for proper storage and disposal of toxic substances. However, the State has identified the Pollution Control Act (48-1-10 et seq.) as providing a general backup enforcement authority. The operation and maintenance and runoff systems measures are met by R-63-380. SCDOT must maintain State road, highway, and bridge urban runoff and pollution control facilities after construction is completed. Programs include consideration of correct herbicide and pesticide application with supervision by a certified applicator, and appropriate disposal of sediment and other road maintenance wastes. Resident maintenance engineers are required to prepare an inventory of roads, highways, and bridges problem areas, prioritize the list with District offices, and correct the problems as time and funds permit. V. MARINAS AND RECREATIONAL BOATING FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance and enforceable policies and mechanisms to ensure implementation of the management measures. RATIONALE: South Carolina has a comprehensive program that is designed to ensure implementation of all of the management measures within the existing coastal zone. Within the coastal zone, the measures are addressed through a number of programs and authorities, with an especially rigorous permitting program in the Critical Area (the critical line, which delineates the critical area, is the approximate boundary between salt water marsh and fresh water marsh) which is administered and enforced by SCOCRM. South Carolina also reviews and approves through State consistency permits for 404 of the Clean Water Act and 10 of the Rivers and Harbors Act, to ensure that the measures are implemented. South Carolina's permits provide enforceable means to implement State rules, which authorize the review of proposed siting and design of new marinas and the operation and maintenance of new and existing marinas under several authorities including SCOCRM's Rules and Regulations for Permitting in the Critical Area (R.30-1 et seq.), Authorization and Criteria for the Establishment of No-Wake Zones (50-21-710), and Stormwater Management and Sediment Reduction regulations (R.72-300 et seq.). South Carolina also provides a technical manual for guidance to marina operators and users and conducts frequent inspections within the critical area. The State plans to expand inspections to include the entire coastal zone. VI. HYDROMODIFICATION FINDINGS: South Carolina's program includes management measures in conformity with the 6217(g) guidance, and includes enforceable policies and mechanisms to ensure implementation of the management measures, except; the State's program does not have management measures and enforceable policies and mechanisms for: 1) a program to manage new channelization projects throughout the 6217 management area; 2) a program to improve surface water quality and restore instream and riparian habitat through the operation and maintenance of existing modified channels; 3) a program to manage the operation of dams to protect surface water quality and instream and riparian habitat and to assess nonpoint source problems resulting from excessive surface water withdrawals; 4) a program to address chemical and pollutant control for dam construction; and 5) a program to identify and develop strategies to solve existing nonpoint source problems caused by streambank or shoreline erosion that do not come up for review under existing permit authorities. CONDITIONS: Within three years, South Carolina will include in its program: 1) management measures and authorities to manage new channelization projects throughout the 6217 management area; 2) management measures and authorities to improve surface water quality and restore instream and riparian habitat through the operation and maintenance of existing modified channels; 3) management measures and authorities to manage the operation of dams to protect surface water quality and instream and riparian habitat and to assess nonpoint source problems resulting from excessive surface water withdrawals; 4) management measures and authorities to address chemical and pollutant control for dam construction; and 5) management measures and authorities to identify and develop strategies to solve existing nonpoint source problems caused by streambank or shoreline erosion that do not come up for review under existing permit authorities. RATIONALE: South Carolina implements measures in its coastal zone for both new channelization activities and modification of existing channels through State policies through its Coastal Management Program (R.30-12. H. and L.). Permit applications are reviewed for impacts on wetlands, habitat, and water quality. Preference is given to less environmentally damaging alternatives, such as constructing channels to carry excess flows in less sensitive areas. The State's program, however, does not contain a process to identify opportunities to improve surface water quality and instream and riparian habitat through operation and maintenance of existing modified channels. The State used Coastal Zone Management Act 309 funds to develop and implement a plan for restoring habitat in existing modified channels. For channelization projects outside of the critical area, certain projects are subject to the Permit for Construction in Navigable Waters. However, the State does not have State enforceable authority applicable to all channelization projects that could impact coastal waters throughout the coastal zone. South Carolina's program implements management measures at dams for erosion and sediment control, and for chemical and pollutant control, through Stormwater Management and Sediment Reduction regulations (R.72-300 et seq.). Further implementation of management measures for chemical and pollutant control will be through the Pesticide Control Act (46-13-10 et seq.), the Solid Waste Policy Act (44-96-10 et seq.), and the Hazardous Waste Management Act (44-56-10 et seq.), which regulate the storage and use of pesticides, and the disposal and discharge of solid and hazardous wastes. However, the Pesticide Act does not include fertilizers, and the Hazardous Waste Management Act does not cover other toxic substances that can be generated on construction sites such as oil, gasoline, paint, and sealers. In addition, the State's program does not provide for proper storage and disposal of toxic substances or the application of nutrients to establish and maintain vegetation without causing significant nutrient runoff to surface waters. Where these authorities are not applicable, however, the State has identified the Pollution Control Act (48-1- 10 et seq.) as providing a general backup enforcement authority. South Carolina maintains instream flows and establishes dam releases to protect surface water quality and instream and riparian habitats through the State navigable waters permit, the Federal Energy Regulatory Commission (FERC) permits, and the 401 Water Quality Certification program, based on a case-by-case review and analysis of downstream impacts. South Carolina's program does not have a program to manage the operation of dams to protect surface water quality and instream and riparian habitat, and to assess nonpoint source problems resulting from excessive surface water withdrawals, that are not covered by the existing programs. South Carolina addresses the measure for shoreline or streambank erosion through its State Stormwater Management and Sedimentation Reduction regulations (R.72-300 et seq.). The State also has authority to designate no wake zones (50-21-710) for recreational boating on waterways. However, the State does not have a program to identify and develop strategies to solve existing nonpoint problems caused by streambank or shoreline erosion that do not come up for review under existing permit authorities. VII. WETLANDS, RIPARIAN AREAS AND VEGETATED TREATMENT SYSTEMS FINDING: South Carolina's program includes management measures in conformity with the 6217(g) guidance and enforceable policies and mechanisms to ensure implementation, except the State's program does not provide a process to identify and implement opportunities to address problems in wetlands/riparian areas in the absence of a permit application for a proposed alteration or modification in or adjacent to an existing wetland. CONDITION: Within three years, the State will include in its program management measures in conformity with the 6217 (g) guidance for wetlands/riparian areas not addressed under existing permit authorities. RATIONALE: South Carolina requires a permit for dredging or filling activities in coastal wetlands. Proposals for new work in coastal wetlands are reviewed for their impacts on altering wetlands and on coastal water quality. The State's coastal program requires development of nonpoint pollution systems to treat runoff and sediments prior to release into wetland systems, and ensures that wetlands systems can meet storage and release requirements for runoff from adjacent development. The State, however, does not have a mechanism to address adverse impacts to wetlands from activities that are not required to seek a permit for alteration or expansion. Management measures promoting restoration of wetland and riparian areas are implemented through the State's coastal management program, and stormwater management program, which require restoration for mitigation of wetlands loss or degradation. Management measures promoting vegetative treatment systems are implemented through the State's erosion and sediment control, and stormwater management programs, which require development projects adjacent to wetlands to buffer wetland systems from highly intensive land uses, and promote the application of vegetative BMP's for stormwater runoff. VIII. ADMINISTRATIVE COORDINATION FINDING: South Carolina's program establishes mechanisms for coordination among State agencies and between State and local officials. RATIONALE: South Carolina's Nonpoint Source (NPS) Management Program is submitted to fulfill requirements for both section 319 of the Clean Water Act, and section 6217 of the CZMA. The Coastal Nonpoint Pollution Control Program serves as an update and expansion of existing NPS Management Programs. Thus, coordination between the primary SCDHEC agencies (SCOCRM and SCEQC) has been achieved by the incorporation of the Coastal Nonpoint Program into the State's existing NPS Management Program. Additionally, the State has a Nonpoint Source (NPS)Task Force with representation from all relevant State agencies that coordinates the various programs and activities related to nonpoint source pollution. The NPS Task Force meets regularly to provide input regarding projects to be implemented as part of the NPS Management Program and will include input for the State's NPS Coastal Initiative. The Task Force also identifies the list of targeted waterbodies which are given the highest priority for implementation program. IX. PUBLIC PARTICIPATION FINDING: South Carolina's program provides opportunities for public participation in the development and implementation of its coastal nonpoint program. RATIONALE: The State undertook early and extensive efforts to involve a variety of parties in the development of its coastal nonpoint program. The State developed a questionnaire to reach out to all county and local governments in the coastal zone, and developed special committees that met regularly to provide input and discuss options for development of the coastal nonpoint program. Additionally, the State made presentations to various groups around the State to educate the public about the program and about nonpoint source pollution and to encourage public participation in the development process. Public notices were published in two State papers, and a public hearing was held. The State has included a copy of public comments and its response. Additionally, the State developed a strategy for its nonpoint point source pollution education and information program and devised a process to prioritize educational needs with input from cooperating agencies. The State will ensure each nonpoint source category has an education program. X. CRITICAL COASTAL AREAS FINDING: South Carolina's program identifies and includes a process for the continuing identification of critical coastal areas adjacent to impaired and threatened coastal waters. RATIONALE: The State has three designated areas that are considered critical coastal areas and that require specific review and permitting. These three areas are: the area seaward of the critical line as defined in its coastal management program that is the approximate division between freshwater marsh and saltwater marsh; Geographic Areas of Particular Concern which include Areas of Unique Natural Resource Value, Activities or Facilities Dependent on Coastal Location, and Areas of Special Historic, Archeological or Cultural Significance; and receiving waterbodies. All three areas trigger additional management measure implementation with the review of any project that has the potential to impact the resource. XI. ADDITIONAL MANAGEMENT MEASURES FINDING: South Carolina's program provides for the identification and continuing revisions of additional management measures applicable to critical coastal areas and cases where section 6217(g) management measures are fully implemented but where water quality threats or impairments persist. RATIONALE: The primary mechanisms that are outlined by the State for determining whether additional management measures are necessary and implementing those measures that are needed are the Watershed Water Quality Management Strategy (WWQMS) program and the Designated Watershed Program. Through the WWQMS, the State has identified land uses and potential growth areas within the five main watersheds within the State, including land uses that cumulatively or individually cause or threaten water quality impairments. Water quality monitoring data is used to identify areas that are not attaining or maintaining water quality standards, or that are threatened by reasonably foreseeable increases in pollution from new or expanding sources. If the recommended management measures in a given area are fully implemented but water quality impairment persists, additional management measures will be evaluated and implemented on a case-by-case basis. In the Designated Watershed approach, as part of the State's Stormwater Management and Sediment Reduction program, local governments, through passage of a local ordinance, recommend designation of specific watersheds. State designation triggers imposition of more stringent stormwater management design standards for development activities within the watershed. Long term implementation of additional management measures could be accomplished through this approach. Additionally, the State's coastal management program already requires additional management measure for golf courses, which have been identified by the State as a source of concern. XII. TECHNICAL ASSISTANCE FINDING: South Carolina has included programs that will provide technical assistance to local governments and the public for implementing the (g) measures and additional management measures. RATIONALE: Technical assistance efforts were described throughout the State's submittal, some of which are accomplished through the State's education program. For example, the State will continue to educate and provide assistance to farmers regarding the use of appropriate BMPs outlined in the USDA Field Office Technical Guide, and the effectiveness of BMPs to address nonpoint source problems. This, in part, is provided by SCDHEC and the State's Cooperative Extension Service. Likewise, for nonpoint source impacts related to forestry, the State will conduct annual monitoring and training sessions to ensure quality control in the implementation and effectiveness of forestry BMPs. XIII. MONITORING FINDING: South Carolina's program includes a plan to assess over time the success of the management measures in reducing pollutant loads and improving water quality. RATIONALE: In the program submittal, South Carolina describes how it will apply existing and new monitoring efforts to assess over time whether the management measures are reducing pollutant loads and improving water quality. XIV. STRATEGY AND EVALUATION OF BACKUP AUTHORITIES Within one year, South Carolina will develop a strategy to implement the management measures for agriculture, forestry, new development, watershed protection, site development, and construction site chemical control throughout the 6217 management area. This strategy will include a description and schedule for the specific steps the State will take to ensure implementation of the management measures; describe how existing or new authorities can be used to ensure implementation where voluntary efforts are unsuccessful; and identify measurable results which, if achieved, will demonstrate the State's ability to achieve implementation of the management measures using the described approach. In order to evaluate the adequacy of this strategy, South Carolina will also develop and apply credible survey tools to demonstrate the ability of the State's approach to achieve implementation for these management measures. The use of credible assessment techniques is necessary in order for NOAA and EPA to evaluate, at the end of the three year period described in the March 16, 1995 guidance issued by NOAA and EPA entitled Flexibility for State Coastal Nonpoint Programs, whether the State's approach has been successful or whether new, more specific authorities will be needed.