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HomeMy WebLinkAboutNCS000515_15Appendix C_20200921Appendix C m m m Yadkin -Pee Dee Basinwide Water Quality Management Plan Foreword and Executive Summary May 1998 Prepared by the: NC Division of Water Quality Water Quality Section Planning Branch P.O. Box 29535 Raleigh, NC 27626-0535 (919) 733-5083 Lake TiLery Stanly County, NC This document was approved and endorsed by the NC Environmental Management Commission on May 14, 1998 to be used as a guide by the NC Division of Water Quality in carrying out its Water Quality Program duties and responsibilities on the Yadkin -Pee Dee River Basin. Foreword Executive Summary Yadkin -Pee Dee River Basin Overview • Assessment Of Water Quality In Tie Yadkin -Pee Dee River Basin • Major Water Quality Concerns and Priority Issues • Recommended Management Strategies For Restoring Impaired Waters And Protecting Threatened Waters • Potential _Reclassification To High Quality Waters Or Outstanding Resource Waters • Future Initiatives In The Yadkin --Pee Dee River Basin FOREWORD Most water users in the basin, including industry, agriculture, tourists, and residents, rely on water for basic needs. These needs include water supply and/or disposal of treated wastewater. In addition, many businesses and residents of the basin rely directly or indirectly on the waters of the basin to meet their recreational needs and supply an economic base through tourism. The lakes of the Yadkin -Pee Dee River basin are well known for recreation activities including fishing, boating and swimming. To these groups and the public they serve, it is important that the basin's waters support viable fisheries, that the waters be relatively safe (low risk of contracting water-bome disease) and that they be aesthetically desirable (free of objectionable colors, odors and smells). Yet maintaining clean water becomes increasingly difficult and more expensive as the population grows, as land is developed and as competition for resources heighten. The majority of the waters in the basin are supporting their designated uses, based on Division of Water Quality monitoring data. The Use -Support assessment methodology used by DWQ found about 9 percent of stream miles to be impaired. However, there are reasons to be concerned about the quality of the large number of support threatened waters in the basin. In addition, many streams have not been monitored by DWQ, so there are potentially other streams with water quality problems. Some areas of the basin have experienced significant population growth between 1970 and 1990. This growth rate is expected to continue. The construction of roads, driveways, commercial and recreational areas and homes must be undertaken with proper care to prevent sediments from reaching surface waters. In addition, timber harvesting and agricultural activities should use best management practices to avoid erosion and the resulting sedimentation to streams. Preserving and enhancing the quality of water in the basin is beyond the capabilities of any one agency or group. State and federal government regulatory programs will play an important part, but much of the responsibility will be at the local level. Those who live, work and recreate in the basin have the most at stake. This document provides a summary of the causes and sources of water pollution in the basin, the status of the basin's water quality, a summary of water quality rules and statutes that apply to water quality protection in the basin, and recommended strategies to protect and enhance the quality of the surface waters in the Yadkin -Pee Dee River basin. The Yadkin -Pee Dee River Basinwide Water Quality Management Plan will be used a guide by the NC Division of Water Quality (formerly Division of Environmental Management) in carrying out its water quality program responsibilities in the basin. Beyond that, it is hoped that the plan will provide a framework for cooperative efforts between the various stakeholders in the basin toward a common goal of improving and protecting the basin's water resources while accommodating reasonable economic growth. Top 5f Pogs W EXECUTIVE SUMMARY NORTH CAROLINA'S SASINWIDE APPROACH TO WATER QUALITY MANAGEMENT - PURPOSE OF YADKIN-PEE DEE RIVER BASIN PLAN Basinwide management is a watershed -based water quality management initiative being implemented by the North Carolina Division of Water Quality (previously Division of Environmental Management). The Yadkin -Pee Dee River Basinwide Water Quality Management Plan is the sixteenth basinwide water quality management plan prepared by the Division of Water Quality (DWQ) in a series of plans being prepared for all seventeen of the state's major river basins. DWQ uses the plans as guides in carrying out its water quality programs in each river basin. The basinwide water quality management plans are not new regulatory documents. They are planning documents used to communicate the State's rationale, approaches and long-term water quality management strategies to policymakers, the regulated community and the general public. Each plan is completed and approved prior to the scheduled date for basinwide discharge permit renewals. The plans are then evaluated, based on follow-up water quality monitoring, and updated at five year intervals. DWQ uses this approach as a means to report to the public on the current status of water quality in the basin, major water quality concerns and issues, projected trends in development and water quality, the long-range water quality goals for the basin, and recommended point and nonpoint source management options. The Yadkin -Pee Dee River Basinwide Water Quality Management Plan will be updated in 2002. Basinwide NPDES permitting in the Yadkin -Pee Dee River basin is scheduled to begin in July, 1998. GOALS OF THE BASINWIDE APPROACH The primary goals of DWQ's basinwide program are: 1. to identify and restore full use to impaired waters, 2. to identify and protect highly valued resource waters and biological communities of special importance, and 3. to manage the causes and sources of pollution so as to ensure the protection of those waters currently supporting their uses while allowing for reasonable economic growth. In addition, DWQ uses this approach as a means to better identify water quality problems, develop appropriate management strategies, maintain and protect water quality and aquatic habitat, assure equitable distribution of waste assimilative capacity for dischargers, and improve public awareness and involvement in the management of the state's surface waters. PUBLIC WORKSHOPS Upper Yadkin -Pee Dee River Basin Workshops The Northwest Piedmont Council of Governments, in conjunction with Centralina Council of Governments was awarded a 205j grant to assist DWQ with the preparation and coordination of public input for the Yadkin -Pee Dee workshops for the upper portion of the basin. A series of four meetings were held in Jonesville (March 15, 1996), Salisbury (March 22, 1996), Winston-Salem (May 17, 1996) and Salisbury (August 22, 1997). Details on these meetings can be found in Chapter 6 and Appendix IV. The initial meeting allowed people to select a breakout group from a choice of areas of concern for the basin. These were eventually conbsolidated into four groups which included: Water Quality (Point Source), Economic Development, Future Growth and Development and Water Quality (Nonpoint Source). Planning sessions were held in which the information from the workshops was summarized for presentation at the May meetings. Follow-up meetings, held in May, were intended to disseminate the summaries compiled at the planning sessions and to give attendees the opportunity to provide comments and suggestions. A summary of the subcommittees goals and recommended action plans is presented in Appendix IV. Each subcommittee developed: 1) a goal, 2) a series of recommendations, 3) a list of agencies that could implement the recommendation, 4) suggested potential funding sources for implementation of the recommendation, and 5) a timetable for completion of the recommendation. Lower Yadkin Pee Dee River Basin Workshops Two workshops were held for the lower Yadkin -Pee Dee River basin in Albemarle on August 22, 1996. The workshops were conducted to provide an overview of the basin schedule and information specific to the lower portion of the basin. After presentations, the group broke out into small discussion groups. Each group was asked to respond to three questions: 1) What are the priority water quality related issues in the basin?; 2) Are there any specific waterbodies in the basin that are experiencing water quality problems?; 3) What efforts have been undertaken to improve water quality? Lower Yadkin -Pee Dee River basin workshop participants identified the following categories as the primary areas of concern to the basin (Table 1). An effort has been made to address these issues in the development of the plan. Several issues identified by workshop participants that were not addressed in the plan were listed in Chapter 7 for future activities. A full summary of the workshops can be found in Chapter 6 and Appendix IV. I aide i Primary Areas of Concern for Participants of the Loi. er Yadkin -Yee Dee River Basin Workshops • Equity between Point Source and Nonpoint Source Issues • Agriculture BMPs and Waste Mgt. • Policy Issues • NPS Pollution/Sedimentation • Forestry Practices and BMPs • Water Supplies Research and Monitoring Needs (See Chp 7, Section 7.3.7)) • Urban Development • Recreation Impacts • Point Source Pollution • Loss of Riparian Zones • Lake Management Tap of Pngc � YADKIN-PEE DEE RIVER BASIN OVERVIEW The Yadkin -Pee Dee River basin is the second largest river basin in the state, covering 7,213 square miles. It includes eighty-three municipalities and all or part of twenty-four counties. The basin is primarily located within the piedmont physiographic region of the state (Figure 1), but also drains the mountain and coastal plain regions. Streams within each region are affected by the soils, geology and topography characteristic of that region. The basin originates on the eastern slopes of the Blue Ridge Mountains in Caldwell, Wilkes and Surry Counties (Figure 1). A small portion of the Yadkin River headwaters originates in Virginia. It flows northeasterly for about 100 miles, then flows to the southeast until it joins the Uwharrie River to form the Pee Dee River. The Pee Dee River continues flowing southeasterly through South Carolina to the Atlantic Ocean. The North Carolina portion of the basin contains approximately 5,991 miles of freshwater streams and rivers. To aid in locating the streams and lakes within the basin, this plan presents the basin as the upper Yadkin River basin (Figure 2.3) and the lower Yadkin River basin (Figure 2.4). The upper Yadkin River basin contains subbasins 03-07-01 through 03-07-07, which drain to High Rock Lake. The lower Yadkin River basin contains subbasins 03-07-08 through 03-07-17 which drain to the remaining chain lakes and the Pee Dee River. Forest land, covers approximately 49 percent of the basin. Agriculture (including cultivated and uncultivated cropland and pastureland) covers approximately 30 percent of the land area. The urban and built-up category comprises roughly I 1 percent and exhibited the most dramatic change between 1982 and 1992 (38 percent increase). Other categories that showed substantial changes during this period were pasturelands (19 percent increase) and the "Other" category, which includes rural transportation (26 percent increase). Both cultivated and uncultivated cropland decreased by a total of 46 percent in the basin between 1982 and 1992. It is likely that some of this cropland was converted to pastureland and to urban and built-up areas. Major land use activities in the basin include agriculture (crops and swine, poultry and cattle operations) and construction activities related to growth. Iredell County has the largest dairy cattle population in the state. There are a number of High Quality and Outstanding Resource Waters in the basin and many state and federally listed threatened and endangered species. The Yadkin -Pee Dee River basin contains a high number of lakes, including a series of "chain" lakes on the mainstem of the river, which attract many tourists to the area. Based on 1990 census data, the population of the basin was 1.2 million people. The most populated areas are in and near Winston-Salem and Charlotte. The overall population density is 163 persons per square mile versus a statewide average of 123 persons per square mile. While much of the basin contains rural areas surrounding small towns, many of the small to large cities have high density areas. The percent population growth over the ten year period between 1980 to 1990 was 10 percent. _Tap of page ASSESSMENT OF WATER QUALITY IN THE YADKIN-PEE DEE RIVER BASIN An assessment of water quality information collected by DWQ and other agencies indicate that 82% of the waters within the basin are supporting their designated uses. However, the uses of half of these waters (41%) are threatened. In addition, 9% of the waters are considered impaired. Of the 29 lakes monitored by DWQ, the majority are supporting their designated uses but are nutrient -enriched (eutrophic or mesotrophic). Below is a summary of monitoring data reflective of water quality in the basin. More details on this information can be found in Chapter 4. Summary of DWQ Monitoring Data Benthic Macroinvertebrates - These are primarily bottom -dwelling aquatic insect larvae such as species of mayflies, stoneflies, and caddisflies that are used as biological indicators of water quality. Measurements of the number and diversity of these organisms at strategic sampling sites is an important means of assessing water quality. Gencrai biap of the Yadkin River Basin — Ytsctti_t_a CA_NWA L W CtAhrm Legend -----• ccanrfsa,�r --- S o 132%A G-w7 XVW CmGI Ekyadw S�ba:ta 5a�hCary U4-HYG'013►9?hV IAAft ��J1tD`a Yadkn Wret Bash D E N R Figure 1 General Map of the Yadkin -Pee Dee River Basin During the 1996 Yadkin basin sampling, macroinvertebrates were collected at 105 sites. The 1996 basin sampling targeted mainstem sites and major tributaries in all the subbasins and gave a good representation of present water quality in the basin. Of the 105 basin samples, 11 were Excellent (10%), 30 were Good (29%), 46 were Good -Fair (44%), 14 were Fair (13%), and 4 sites were rated as Poor (4%). Fish Community Sampling - During the spring of 1996, 55 fish community sites, representing at least one site per subbasm, were sampled and evaluated using the North Carolina Index of Biotic Integrity (NCIBI). These 55 sites were rated as: Good-Excellent-6 (I I%), Good-23 (42%), Fair-Good-6 (I I%), Fair-13 (24%), Poor-Fair-2 (4%), Poor-1 (2%), and Not Rated-4 (7%). Fish Tissue Analysis - Sample collections were performed at nine sites within the drainage in 1996. DWQ confirmed extensive mercury contamination of the Abbotts Creek embayment of High Rock Lake in 1981, but followup remedial actions have brought mercury concentrations back down to background levels. Lakes Assessments - Twenty-nine lakes were sampled in the Yadkin River Basin. The majority of these lakes were sampled in 1994 or 1995. Twenty six lakes were fully supporting their designated uses. Two lakes were rated partially supporting their uses (Rockingham City Lake and Hamlet City Lake). Long Lake was listed as not supporting because it was drained in 1995 to facilitate sediment removal from the Jake's basin. Ambient Monitoring - Water quality data collected at 45 sites in the Yadkin River basin were evaluated for the period 1992-1996. Yadkin River mainstem water quality indicates highest total phosphorus and nitrogen concentrations at the Yadkin College site. Water quality at tributary ambient sites showed patterns of low dissolved oxygen levels and pH at some sites. Elevated fecal coliform bacteria levels are commonly found throughout the basin. Use -Support Ratings Use -support ratings are a method to analyze water quality information and to determine whether the quality is sufficient to support the uses for which the waterbody has been classified by the State. The word uses refers to activities such as swimming, fishing and water supply. All surface waters in the state have been assigned a classification. DWQ has collected chemical and biological water quality monitoring data throughout the basin, some of which are summarized above. Available data for a particular stream segment has been assessed to determine the overall use support rating; that is, whether the waters are fully supporting, support - threatened, partially supporting, or not supporting their uses. Fully supporting and support -threatened streams are not considered impaired. Streams referred to as impaired are those rated as either partially supporting or not supporting their uses. Although the majority of the streams have good to excellent bioclassifications and few standards were violated at the ambient stations, nonpoint source effects such as increased sedimentation, were evident at many of the sampling sites. There are also some point source discharges that pose water quality concerns in the portion of the basin draining into High Rock Lake. Those waters considered Impaired, and some select support threatened waters based on monitoring data, are discussed below by subbasin. Use support ratings in the Yadkin River basin, described more fully in Chapter 4, are summarized below. Of the 5,991 miles of freshwater streams and rivers in the Yadkin -Pee Dee basin, use support ratings were determined for 91 % or 5,408 miles with the following breakdown: Miles Percent of Total SUPPORTING 4930 82% • Fully supporting: (2436) (41%) • Support -threatened: (2494) (410/6) IMPAIRED 478 9% • Partially supporting: (383) (7%) • Not supporting: (95) (2%) NOT EVALUATED: 584 9% MAJOR WATER QUALITY CONCERNS AND PRIORITY ISSUES The primary water quality issues discussed in this basin plan relate to concerns presented to DWQ as priority issues, or those that have been identified as causing water quality impacts or impairment. Discussion on these categories follows. Growth Management - Proactive planning efforts at the local level are needed to assure that development is done in a manner that maintains the good water quality that is presently attracting people to the area. These planning efforts will need to find a balance between water quality protection, natural resource management and economic growth. Growth management requires planning for the needs of future population increases as well as developing a strong tourism base. These actions are critical to water quality management and the quality of life for the residents of the basin. Urban and residential impacts on water quality and trends in the basin are discussed in Chapter 3, Section 3.4.2. Some local initiatives are presented in Chapter 5, Section 5.6.3. Refer to Section 6.5 for recommended management strategies relating to planning for growth and development. Urban Stormwater - Surface waters can be significantly impacted by urban stormwater runoff. The impacts of urban and residential runoff on water quality in the basin are discussed in Chapter 3, Section 3.4.2. Some local initiatives are presented in Chapter 5, Section 5.6.3. Refer to Section 6.5 for recommended management strategies relating to controlling potential water quality problems related to urban stormwater runoff. Sedimentation - Erosion, and the resulting sedimentation, are prevalent throughout the basin. Workshop participants (Section 6.2.2) and Nonpoint Source Team members (Section 6.2.3) have expressed the view that the priority issue for the basin is sedimentation. Many waters in the basin are thought to be impacted or impaired, at least in part, by sedimentation (Chapter 4, Section 4.5). The sources of sedimentation are discussed in detail in Chapter 3, programs to address erosion and sedimentation are discussed in Chapter 5, some of the actions being taken at the local level are discussed in Chapter 5, Section 5.6. General management strategies for controlling sedimentation are presented in Section 6.5. Nutrients - Eutrophication of High Rock Lake is the primary focus of nutrient strategies in this basin plan. Nutrients are discussed in Chapter 3. Water quality on each monitored lake is presented in Chapter 4. Management strategies pertaining to High Rock Lake are presented in Section 6.3. General management strategies for controlling nutrients from urban and industrial stormwater are presented in Section 6.5. Fecal Coliform Bacteria - Ambient monitoring stations throughout the basin have identified waterbodies with elevated fecal coliform bacteria (Chapter 4). Fecal coliform bacteria sources are discussed in Chapter 3. General management strategies to address nonpoint sources of fecal coliform bacteria are presented in Section 6.5. Oxygen Consuming Wastes - Many streams within the Yadkin -Pee Dee River basin are low or zero flow streams. Regulations currently exist for streams with 7Q10 and/or 30Q2 equal to zero cubic feet per second (cfs). These regulations were developed to prohibit new or expanded discharges of oxygen - consuming wastes to zero flow streams. Existing facilities were evaluated for alternatives to discharge. Many facilities found alternatives and some chose to build new tertiary treatment facilities (which are allowed to discharge under the regulations). General management strategies for oxygen -consuming wastes and management strategies for specific streams within the basin are presented in Section 6.5.7. Agricultural Nonpoint Source Pollution - Agriculture can contribute to degraded water quality through contributions of excess nutrients, fecal coliform bacteria, toxic chemicals and erosion problems from runoff. Chapter 3, Section 3.2 discusses these causes of impairment and Section 3.4 provides a discussion on agricultural contributions to water quality impacts. Chapter 6, Section 6.5.2 presents some suggested management strategies to reduce the negative impacts agricultural activites can have on water quality. TOP Of P!F_�,) RECOMMENDED MANAGEMENT STRATEGIES FOR RESTORING AND PROTECTING IMPAIRED WATERS AND SELECT "THREATENED" WATERS Those waters in the basin that are considered impaired based on DWQ monitoring data are presented in Table 2. A summary of the management strategy developed for this waterbody is also presented. Some additional streams with known water quality problems which have not led to impairment but for which a management strategy has been developed are presented in summary in Table 3. For more details on water quality problems or management strategies for these waters, refer to Chapter 6, Section 6.3. These waterbodies are impaired, at least in part, due to nonpoint sources of pollution. The tasks of identifying nonpoint sources of pollution and developing management strategies for these impaired waterbodies, is very resource -intensive. Accomplishing these tasks is overwhelming, given the current limited resources of DWQ, other agencies (e.g.-Division of Land Resources, Division of Soil and Water Conservation, Cooperative Extension Service, etc.) and local governments. Therefore, only limited progress towards restoring those NPS impaired waterbodies can be expected during this five-year cycle unless substantial resources are put towards solving NPS problems. Due to these restraints, this plan has no NPS management strategies for most of the streams with NPS problems. DWQ plans to further evaluate the impaired waterbodies in the Yadkin -Pee Dee River basin in conjunction with other NPS agencies and develop management strategies for a portion of these impaired waterbodies for the second Yadkin River Basinwide Water Quality Management Plan, in accordance the requirements of Section 303(d). Table 2 Partially Supporting or Not Supporting Monitored Waters in the Yadkin -Pee Dee River Basin* Subbasin Waterbodti LSe Support Potential Sources Recommended MO. Straterj * Rating 030703 Ararat R. PS NP,P Actions by local governments and below Mt Airy agencies are needed to reduce NPS pollution. The Division will continue to evaluate instream data submitted by the City of Mount Airy.* 030703 Lovills Cr. at PS NP Further investigation is necessary SR 1371 to determine actions needed.* 030703 Heatherly Cr. PS & NP,P Continued monitoring will quantify NS improvements with the removal of the Pilot Mountain WWTP discharge.* 030704 Reynolds Cr. PS NP,P Sequoia WWTP should submit an engineering alternatives analysis.* 030704 Salem Cr. - PS NP Action by Forsyth County and the Middle Fork City of Winston Salem are needed to improve water quality. DWQ will reevaluate the model to determine if wasteload allocation should be revised.* 030704 Grants Cr. PS P,NP DWQ will monitor for improvement after the City of Salisbury's discharges are eliminated. If the creek is still impaired after the Salisbury discharge is removed, DWQ will identify other point sources of pollution and the options for these sources.* 030706 Fourth Cr. PS NP Pollutant sources must be below identified, along with methods to Statesville reduce nutrient loading.* 030707 Brushy Fork at PS NP Additional activity by local SR1810 governments and agencies and the Nonpoint Source Team are needed.* 030707 Hamby Cr. at I- NS NP,P No new dischargers of oxygen- 85, SR2031 consuming wastes should be (Abbotts Cr. permitted. Thomasville and watershed) Lexington should serve as regional WWTPs for future wastewater needs.* 030708 Lick Cr. at PS P,NP New dischargers, including the SR2351, NC8 Town of Denton's proposed outfall, should receive advanced tertiary limits for oxygen - consuming wastes.* 030708 Little Mtn Cr. PS NP,P New or expanding discharges should receive advanced tertiary limits for oxygen -consuming wastes under the current zero flow regulations. Low dissolved oxygen levels will be evaluated and appropriate actions pursued during FERC relicensing.* 030710 Pee Dee R. PS NP New or expanding discharges to below Lake the Pee Dee River below Lake Tillery Tillery should meet limits no less stringent than 15 mg/l BODS, 4 mg/l NH3N and 5 mg/1 DO. Appropriate mitigative actions will be pursued during FERC relicensing.* 030710 Brown Cr. at PS NP No new discharges should be SR1627 permitted in this watershed.* 030711 upper Rocky NS - a NP New or expanding dischargers above River portion is Mallard Creek should receive limits rated support of 5 mg/l BOD and 2 mg/l NH3N. threat- ened arg New or expandingdisches below Mallard Creek will receive total BODu limits 32 mg/l. Model results will be used to evaluate specific scenarios for future allocations in the river. The City of Charlotte and Cabarrus and Mecklenburg Counties should investigate pollution sources and develop mitigation plans to protect the river from further degradation.* 030711 Coddle Cr. at PS NP The NC Division of Water NC49 Resources has requested a minimum streamflow, intended to maintain downstream habitat, from the Coddle Creek impoundment (Chp 2, Sect 2.9). This minimum flow may or may not improve water quality at the DWQ downstream sampling site. DWQ will continue to monitor for improved effects. The Town of Concord is encouraged to take steps to reduce nonpoint source runoff to Coddle Creek.* 030712 Goose Cr. NS NP,P A field -calibrated QUAL2E model will be developed to evaluate assimilative capacity of the creek.* 030712 N. & S. Fork PS P,NP DWQ recommends that no Crooked Cr. additional oxygen -consuming wastes be permitted in N. Fork Crooked Creek until data are available to evaluate the impact of existing loading. No additional loading of oxygen -consuming wastes will be permitted in S. Fork Crooked Creek.* 030713 Long Lake NS NP Long Lake is drained and under a local restoration project. 030714 Richardson Cr. PS NP,P No new discharges of oxygen - below Monroe consuming wastes should be permitted above Monroe's WWTP.* 030714 Lanes Cr. NS & NP Every alternative to discharge PS should be thoroughly examined before a new outfall is considered.* 030716 Cartledge Cr. PS NP Additional activity by local at SR 1142 governments and agencies are needed to develop a plan to reduce nonpoint source pollution.* 030716 Hitchcock Cr. NS NP No additional loads of oxygen - at SR 1109 consuming wastes within 4 miles of mouth of creek should be permitted.* 030716 Rockingham City Lake PS NP Local restoration actions will need to be taken.* 030716 Hamlet City PS NP Local restoration actions are Lake planned.* 030717 N. Fork Jones PS NP Before any new outfalls are Cr. at SR 1121 permitted, it is recommended that and S. Fork additional data be collected to aid in Jones Cr., assessing assimilative capacity. Anson Cnty Additional investigation is necessary to identify specific nonpoint sources of contamination.* Notes: NS = Not Supporting PS = Partially Supporting NP = Nonpoint Sources P = Point Sources * - Only limited progress towards developing and implementing NPS strategies for these impaired waters can be expected without additional resources. Table 3 Recommended TMDLs and Management Strategies for Addressing Oxygen -Consuming Wastes with Reference to Subbasin Summaries. Ref. Sub- Recc iA tug 'Vix,ia2enlent Strateav p 6 basin Stream - Sect. 1 030704 Grants Creek If DO violations continue after 6.3.4- Salisbury has relocated, other E sources of pollution will need to be identified. 2 030704 Salem Creek Reevaluate QUAL2E model to 6.3.4- & Muddy determine if the wasteload E Creek allocation for the Archie Elledge Plant should be revised. 3 030705 Cedar Creek To aid in assessing the assimilative 6.3.4- capacity, additional water quality F data should be collected before permitting new dischargers. 4 030706 Second Field calibrated model should be 6.3.4- Creek considered for assessing the G (North) potential impact of new or expanding dischargers. 5 030707 Rich Fork No additional loadings of oxygen- 6.3.4- consuming wastes should be H permitted. 6 030707 Abbotts No new dischargers of oxygen- 6.3.4- Creek consuming wastes should be H watershed permitted. Thomasville and Lexington should serve as regional WWTPs for future wastewater needs. 7 030708 Mountain Cr. Low dissolved oxygen levels in the 63.4- arm of Lake Mountain Cr. arm of Lake Tillery I Tillery will be evaluated. Appropriate actions will be pursued during FERC relicensing. 8 030708 Upper Lake Low dissolved oxygen levels in the 63.4- Tillery upper reaches of Lake Tillery will I be evaluated. Appropriate actions will be pursued during FERC relicensing. 9 030708 Clarks Creek Further evaluation and updated 6.3.4- flow information should be I obtained if the Mt. Gilead discharge remains, or new discharges locate to this creek. 10 030708 Yadkin River Low dissolved oxygen levels below 6.3.4- High Rock Lake dam will be I evaluated and appropriate actions pursued during FERC relicensing. 11 030710 Pee Dee New or expanding discharges to the 6.3.4- River Pee Dee River below Lake Tillery K should meet limits no less stringent than 15 mg/1 BOD5, 4 mg/1 NH3N and 5 mg/1 DO. Appropriate mitigative actions will be pursued during FERC relicensing. 12 030710 Brown Creek No new discharges should be 6.3.4- permitted in this watershed. K 13 030711 Mallard Cr & New or expanding discharges, if 6.3.4- Rocky R. permitted, should receive limits of L watershed 5 mg/I BOD and 2 mg/l NH3N. upstrm of Mallard Cr 14 030711 Rocky River New or expanding discharges are to 6.3.4- below receive BODu limits equal to 32 L Mallard mg/l. Creek 15 030712 Goose Creek Field calibrated model will be 6.3.4- developed to evaluate assimilative M capacity of the creek. 16 030712 Crooked Before any new outfalls are 6.3.4- Creek permitted, it is recommended that M additional chemical/physical data be collected to aid in assessing the assimilative capacity of the proposed receiving stream. 17 030712 South Fork No additional loads of oxygen- 6.3.4- Crooked consuming wastes will be M Creek permitted. 18 030712 North Fork No additional loads of oxygen- 6.3.4- Crooked consuming wastes until data has been M Creek collected on the creek to determine impacts from existing facility. 19 030712 Rocky River New or expanding dischargers to the t6j-34- river between the Rocky River Regional M WWTP and the confluence with Muddy Creek will receive total BODu limits of approx. 32 mg/l. In addition, DWQ is planning to request USGS to develop a low flow profile for the river so that the QUAL2E model can be extended to the mouth of the river. 20 030713 Long Creek The City of Albemarle should optimize 6.3.4- treatment processes. More stringent N BOD5 limits will be considered. 21 030714 Richardson No new discharges of oxygen- 6.3.4- Creek consuming wastes should be permitted O above Monroe's WWTP. 22 030716 Hitchcock No additional loads of oxygen- 6.3.4- Creek consuming wastes within 4 miles of Q mouth of creek should be permitted. 030716 Marks Creek Additional loadings of oxygen- 6.3.4- consuming wastes are not recommended. Q If future expansions are to be reconsidered, it is recommended that DWQ analyze the feasibility of developing a field calibrated model in order to assess the assimilative capacity of the stream. 030716 Pee Dee Low dissolved oxygen levels below 6.3.4- River Blewett Falls Lake dam will be Q evaluated and appropriate actions pursued during FERC relicensing. 030717 Jones Creek Before any new outfalls are permitted, it 6.3.4- and Deadfall is recommended that additional R Creek chemical/physical data be collected to catchments aid in assessing the assimilative capacity of the proposed receiving stream. Top of Page POTENTIAL RECLASSIFICATION TO HIGH QUALITY WATERS OR OUTSTANDING RESOURCE WATERS Based on DWQ monitoring, there are several waterbodies that may be considered eligible for reclassification to HQW or ORW (Table 4). Table 4 Potential HQW/ORW Waters in the Yadkin -Pee Dee River Basin Suhl)asin t�,aterl)odies 030701 Buffalo Creek, Stoney Fork, Mulberry Creek, Roaring River and Middle Prong Roaring River 030706 1 upper South Yadkin River, Hunting Creek, North Little Hunting Creek and Rocky Creek 1030710 1 Mountain Creek 1030714 1 West Fork Little River I 1030716 1 Beaverdam Creek, Bones Fork Creek and Rocky Fork Creek Top of Pngc-,) FUTURE INITIATIVES IN THE YADKIN-PEE DEE RIVER BASIN Nonpoint Source Control Strategies and Priorities/Nutrient Reduction Efforts Improving knowledge of and controlling nonpoint source pollution will be a high priority over the next five years. Nonpoint source pollution is primarily responsible for the impaired and threatened waters in the Yadkin -Pee Dee River basin. The following two initiatives are underway to address the protection of surface waters from nonpoint sources of pollution. . Establishment of nonpoint source basin teams in each basin. DWQ has begun to establish a nonpoint source team in each of the state's 17 major river basins. Two nonpoint source teams have been established for the upper and the lower Yadkin -Pee Dee River basin. Refer to Chapter 7, Section 7.2.2 for further description. . Interagency Water Quality Monitoring. DWQ has begun the process of coordinating with other natural resource agencies on the idea of interagency water quality monitoring across the state. Refer to Chapter 7, Section 7.2.3 nor more information. Efforts to Improve NC's Sedimentation and Erosion Control Program Recently, there has been an initiative in the Division of Land Resources to address sediment and turbidity water quality problems across the state. The Sedimentation and Erosion Control Commission recognized the need to evaluate the implementation of the existing programs. A Technical Advisory Committee was established to develop recommendations for the Commission. The Commission supported the recommendations and instructed staff to implement the ones which can be implemented without rule or statute changes and establish a schedule to implement the others. The changes are expected to result in program implementation improvements and reduction in sediment losses to our streams. The North Carolina Wetlands Restoration Program The North Carolina Wetlands Restoration Program (NCWRP) was established by the General Assembly in 1996. The purpose of the NCWRP is to protect and improve water quality, flood prevention, fisheries, wildlife and plant habitats, and recreational opportunities through the protection and restoration of wetlands and riparian areas. The NCWRP will accomplish this purpose by implementing projects that will restore wetland and riparian area functions and values throughout North Carolina. Beginning July 1, 1997, comprehensive Basinwide Restoration Plans will be developed for each river basin in conjunction with the Basinwide Water Quality Management Plans. GIS-based mapping methodologies will be used to assess the status of existing wetlands and riparian area resources within each basin and to identify degraded wetlands and riparian areas. Potential restoration sites will be prioritized based on the ability of the restored sites to address problems that have been identified in the Basinwide Water Quality Management Plans. The Yadkin -Pee Dee River Basinwide Restoration Plan will be one of the first plans developed. See Chapter 7, Section 7.3.2 for more details National Pollutant Discharge Elimination System (NPDES) Program In the next five years, efforts will be continued to: • improve compliance with permitted limits; . improve pretreatment of industrial wastes to municipal wastewater treatment plants so as to maintain reduced toxicity in effluent wastes; • encourage pollution prevention at industrial facilities in order to reduce the need for pollution control; . require dechlorination of chlorinated effluents or the use of alternative disinfectants for new or expanding facilities; . require multiple treatment trains at wastewater facilities; and . require plants to begin plans for expansion well before they reach capacity. Longer -term objectives will include refinement of overall management strategies. Long-term point source control efforts will stress reduction of wastes entering wastewater treatment plants, seeking more efficient and creative ways of recycling byproducts of the treatment process (including reuse of nonpotable treated wastewater), and keeping abreast of and recommending the most advanced wastewater treatment technologies. Use of Discharger Self -Monitoring Data DWQ will continue to make greater use of discharger self -monitoring data to augment the data it collects through the programs described in Chapter 4. Quality assurance, timing and consistency of data from plant to plant will be issues of importance. Also, a system will need to be developed to enter the data into a computerized database for later analysis. In an effort to improve the qualtiy and consistency of self -monitoring data, DWQ is working with a coalition of dischargers in the Yadkin -Pee Dee river basin to develop a strategic monitoring plan that is similar, and in compliment to, DWQ's ambient monitoring system. Similar programs are effectively used in the lower Neuse and Cape Fear River basins. See Chapter 7, Section 7.3.4. Promotion of Non -Discharge Alternatives/Regionalization DWQ requires all new and expanding dischargers to submit an alternatives analysis as part of its NPDES permit application. Non -discharge alternatives, including connection to an existing WWTP or land -applying wastes are preferred from an environmental standpoint. If the Division determines that there is an economically reasonable alternative to a discharge, DWQ may recommend denial of the NPDES permit. Coordinating Basinwide Management with Other Programs The basinwide planning process helps to identify and prioritize waterbodies in need of protection or restoration efforts and provides a means of disseminating this information to other water quality protection programs. The potential exists to identify wastewater treatment plants in need of funding for improvements through DWQ's Construction Grants and Loan Program. The plans can also assist in identifying projects and waterbodies applicable to the goals of the Clean Water Management Trust Fund, Wetlands Restoration Program, or Section 319 grants program. Finalized basin plans are provided to these program offices for their use and to other state and federal agencies. Improved Data Management and Expanded Use of Geographic Information System (GIS) Computer Capabilities DWQ is in the process of centralizing and improving its computer data management systems. Most of its water quality program data including permitted dischargers, effluent limits, compliance information, water quality data and stream classifications, will be put in a central data center which will be made accessible to most staff at desktop computer stations. Much of this information is also being entered into the state's GIS computer system. As all this information is made available to the GIS system, including land use data from satellite or air photo interpretation, and as the system becomes more user friendly, the potential to graphically display the results of water quality data analysis will be tremendous. Improved Monitoring and Assessment of Erosion Impacts Sedimentation is perceived by the workshop participants and the Yadkin -Pee Dee River basin NPS Teams as one of the highest priorities in the basin. Many streams are impacted or impaired, at least in part, due to sedimentation. Erosion is evident throughout the basin. The fact that sedimentation is visible and aesthetically unpleasant helps make it a higher profile issue. The extent of sedimentation problems can be difficult to diagnose with the monitoring methods historically used by DWQ and many other state water quality agencies. Suspended solids sampling conducted on a scheduled monthly basis is likely to miss most of the high -flow periods during which the majority of sediment is transported. Benthic monitoring techniques may not always identify the effects of sedimentation, which can impact aquatic organisms by reducing and altering available habitat. Some of the actions that DWQ and others will take towards improving monitoring and assessment of erosion impacts are: . DWQ currently does not have adequate means of quantifying the effects of sedimentation on water quality. DWQ recognizes the need to improve its targeting and monitoring capabilities in order to further identify sediment problems as well as to facilitate and support efforts to restore degraded areas. This points to the need for targeted management efforts coupled with a monitoring strategy which effectively measures sediment transport under both average and extreme conditions. DWQ will work toward developing interagency resources for enhancing the ability to measure and model erosion and sediment levels, to identify sediment source areas, and to recommend appropriate management practices. DWQ will initiate discussions among staff and other agencies to determine how these issues can best be addressed given current resource constraints. DWQ will also try to determine what, if any, programmatic changes can be made to gain better knowledge on sedimentation. • Locally -based watershed improvement efforts represent an important mechanism for restoring streams and watersheds degraded by sedimentation. The Division is working with several such projects in the Yadkin -Pee Dee River basin and will continue to do so. Funding for such efforts can come from a number of sources (See Appendix VI), including the Agricultural Cost Share Program, Section 319 grants and the Clean Water Management Trust Fund. The Division's role in such projects can include assistance with problem identification and targeting, monitoring and other technical assistance. DWQ is currently working with the Division of Land Resources, Division of Forest Resources and Division of Soil and Water Conservation to develop a Memorandum of Agreement for Turbidity. Turbidity is an indicator of sedimentation in a waterbody. The intent of the agreement is to establish a relationship between the agencies that better defines each agency's responsibility for activities related to turbidity. The turbidity standard is not being changed under this agreement. Additional Research and Monitoring Needs DWQ staff has identified some additional research and monitoring needs that would be useful for assessing and, ultimately, protecting and restoring the water quality of the Yadkin -Pee Dee River basin. The following list is not inclusive. Rather, it is meant to stimulate ideas for obtaining more information to better address water quality problems in the basin. With the newly available funding programs (Clean Water Management Trust Fund and Wetlands Restoration Program) and the existing Section 319 grant program, it may be desirable for grant applicants to focus proposals on the following issues: • More resources are needed to address nonpoint sources of pollution. Identifying nonpoint sources of pollution and developing management strategies for impaired waterbodies, given the current limited resources available, is an overwhelming task. Therefore, only limited progress towards restoring NPS impaired waterbodies can be expected unless substantial resources are put towards solving NPS problems. • Long-range water supply planning for the upper portion of the basin is needed. The proposed water withdrawal by the City of Winston-Salem has the potential to reduce low flow conditions in the mainstem of the Yadkin River enough to affect the River's waste assimilative capacity. Growth management/urban stormwater planning (specifically for the Rocky River drainage out of Charlotte and in the Winston -Salim area) are needed. Increased population in these areas will demand more water and generate more wastewater. In addition, conversion of land from forests and farms will increase impervious surfaces and produce higher than natural streamflows and cause erosion. Streams in these areas will likely become impaired unless this growth is planned for and managed properly. • Need to update the sediment studies of the 1970's to the 1990's. This information would be used to predict future trends and to assess the effectiveness of major sediment control efforts (e.g.- the Farm Bill). • There is a lack of data on impacts of summer low -flow conditions on aquatic life. The lack of flowing water during summer months can severely reduce the diversity of aquatic fauna. This problem has not been investigated in North Carolina and further research will be required to determine the effect of water withdrawals (e.g.- for irrigation) on stream life. • Determining sedimentation rates and volumes in the Chain Lakes would be very useful. . Document the impact of animal wastes in areas of high cattle (e.g.-Iredell County) and poultry (e.g.-Union County) production. There is a need for separating out the impact from organic loading, nutrient loading and other nonpoint sources. . Need improved monitoring of small streams. These streams are currently ignored because of their size, but they are a source of pollution and this source will increase as growth occurs. The following comments and questions, as presented by the participants of the Lower Yadkin -Pee Dee River basin workshop, require attention: 1. More data are needed to determine what percentage of water quality problems are due to agriculture. 2. There needs to be a better understanding of, and more education on, color impacts from wastewater discharges. Need to identify both NPS and point source pollution contributions/contributors. What data do we have? Is it based on good science? 4. Need better identification of the causes and sources of pollution in impaired streams. More resources should be put into determining why stream miles are impaired- "what is the source of poor water quality?" This is needed to develop appropriate management strategies. 5. Identify problems before establishing regulations. 6. Need more research on urban BMPs. 7. We need education for farmers and better access to research. [ 1998 Yadkin -Pee Dee River Basinwide Water Quality Management Plan ] [ 1998 Yadkin -Pee Dee River Basinwide Water Quality Management Plan Executive Summary j [ Yadkin -Pee Dee River Basin Map ] [ Yadkin -Pee Dee River Basin Statistics ] [ Home ] [ Basinwide Water Quality Plans ] [ Water Quality Plan Executive Summaries ] [ Basin Maps ] [ River Basin Quiz ] [ Basinwide Statistics ] [ Meetings and Events ] [ What is Basinwide Planning? J [ Which Basin Are You In? ] [ Basinwide Contact Information ] Section s Chapter 4 Yadkin -Pee Dee River Subbasin 03-07-04 Includes Muddy Creek, Grants Creek and High Rock Lake 4.1 Water Quality Overview i - - _TM�Z — ._ _ -• Subbasin 03-07-04 at a Glance Land and Water Total area: 730 m12 Stream miles: 438.0 Lake acres: 11,137.3 Population Statistics 1990 Est. Pop.: 325,945 people Pop. Density: 461 persons/n& Land Cover (% Forest/Wetland: 55.9 Surface Water: 3.6 Urban: 6.0 Cultivated Crop: 2.8 This subbasin is located entirely within the piedmont portion of the state. Muddy Creek is the largest tributary of the Yadkin River within this subbasin and its watershed drains the Winston-Salem area. Grants Creek, in the southwestern part of the subbasin, flows through Salisbury, Spencer and East Spencer. Dutchman Creek (subbasin 03- 07-05) and the South Yadkin River (subbasin 03-07-06) enter the Yadkin River above High Rock Lake in this subbasin. Abbotts Creek (discussed in subbasin 03-07-07) is a tributary to High Rock Lake. The subbasin contains all or part of more than 15 different municipalities and five counties. The Yadkin River and High Rock Lake serve as the county boundary between Davie and Davidson and Rowan and Davidson counties. Pasture/ A map including the locations of NPDES discharges and Managed Herbaceous: 31.7 iwater quality monitoring stations is presented in Figure B- -„�" 4. Table B-7 contains a summary of monitoring data typ6s, locations and results. Use support ratings for waters in this subbasin are summarized in Table B-8. Appendix I provides a key to discharge identification numbers. Refer to Appendix III for a complete listing of monitored waters and more information about use support ratings. This subbasin is one of only a few in which more than 5 percent of land is described as urban. The northern portion of the subbasin includes Winston-Salem, Rural Hall, Tobaccoville and parts of King, Lewisville, Clemmons and Kernersville and is ahnost completely developed. Approximately 56 percent of the land is forested and nearly 35 percent is in agriculture. More than 3 percent is surface water reflecting a large portion of the 15,750-acre High Rock Lake. This subbasin contains more than one quarter (27 percent) of the total basin population, and the population density in 1990 was the highest of any other subbasin. Population is expected to increase 32 percent in Rowan, 26 percent in Forsyth and 25 percent in Davidson counties between 2000 and 2020. The subbasin contains 40 NPDES permitted discharges and eight registered animal operations. Facilities with compliance or toxicity problems are discussed in following sections. The majority of waters within this subbasin exhibit some level of impacts to water quality. Many streams are Impaired by a combination of nonpoint and point source pollution. There are no High Quality Waters or Outstanding Resource Waters within the subbasin. Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 146 0 Figure B-4 Yadkin -Pee Dee River Subbasin 03-07-04 SCIRRY King ri+Y ST4fCES I bbaccoville �e 272,. Iv U. Rur Hal( FORSYTH 2� Be i"a� a"Ikertown I Winstongs -'_251 A - -S: � ;at Salem �• � = NW �}7 �,Nr4 . K ersville its �,•vj =/ r t. a:..: SS -1 ' :q25- `f 31. .. 235. x;• �r Lewlsvme "4 S :; si 1'22-7 I -2 " i�219 ^ JClemlmons14 Q25D000 ti ¢� t ! a, NG801 , = '' 215 ••c1� r_—_—r �2600 00 _ b7 t DAWE n 1971195 j y { �! ,67f_-J175!` c�3 185 J' DAI/f )SONS �. r�r I ,R 810000 168 ems-1 r—ti+'`ca°�p 159: �OXingtOn } jy ROWAN �,� �-� � j_ ; f55 ,0 157 i ,ti . !_ J f 151 I -150 Q4660 ? 0 �14 t. M- 143 4 14g ! 4600000 1264�, I 110 112/$ �• Sall Urv;:: 9000 •t O Subbesfn Boundary . _/0. . ;%" Nab s..`! ® mbwd. moriftinsmtlan Q53600 106 . _ r` :aemmostanm 105 f111 i High Lake Rock r,�` .; .. Fish c«mrnxs� seam SSB-4 Al.� ® Fish 7ismm Stawn 101 i .A,100 ""1 -;� E' Q6120000, WDESDtrdharaes ;_r A Malmo WON Faith 1 ', Roc 'elf, t I, =.x.5 +rc- t� Uae Support fmBng Landis Grove l ! { 'ter s upporft . t. impaired - f ..—.. ..—..—.. —..— e _..._..—.�.�__..—..�If --.. !1\Yj No Data NCMM CABARRUS SiANlLY ` ✓ county Bound" Planning Branch ! '�+ ' � PftaryPoeds Basiawide Planning Program Unit 5 0 5 10 Miles ° MuNdpaRy March 21, 2003 2 Table B-7 DWQ Monitoring Locations, Bioclassifications and Notable Chemical Parameters (1998-2002) for Yadkin -Pee Dee River Subbasin 03-07-04 Site Stream County Road Bioclassification o= Noted Parameter Benthic Macroinvertebrate Community Monitoring B-1 Muddy Creek' Forsyth SR 1898 Good -Fair B-2 Muddy Creek Forsyth SR 2995 Good -Fair SSB-1 Reynolds Creek' Forsyth Above Sequioa VVVJTP Not Rated SSB-2 Reynolds Creek Forsyth Below Sequioa WWTP Not Rated B-3 Salem Creek' Forsyth SR 2657 Not Rated " B-4 Salem Creek Forsyth SR 2902 Fair B-5 Salem Creek Forsyth SR 2991 Fair B-6 South Fork Muddy Cr' Forsyth SR 2902 Good -Fair B-7 Yadkin River' Davidson SR 1447 Good B-8 Grants Creek' Rowan SR 1914 Fair SSB-4 UT Grants Creek' Rowan SR 1500 Not Impaired SSB-3 Town Creek' Rowan I-85 Fair Fish Community Monitoring F-1 Muddy Creek Forsyth SR 1891 Fair F-2 Silas Creek Forsyth SR 1137 Fair F-2 Silas Creek (2002) Forsyth SR 1137 Good -Fair F-3 Salem Creek Forsyth SR 1120 Poor F-4 South Fork Muddy Cr Forsyth SR 2902 Good -Fair F-5 Grants Creek Rowan SR 2202 Good -Fair Ambient Monitoring Q2510000 Salem Creek Forsyth At Elledge W WTP Fecal coliform Q2600000 Muddy Creek Forsyth SR 2995 Nutrients, Fecal coliform Q2810000 Yadkin River Davie/ Davidson US 64 Turbidity Q4600000 Grants Creek Rowan Near mouth Turbidity, Nutrients, Fecal coliform Q4660000 Yadkin River Rowan/ Davidson NC 150 Turbidity Fecal coliform Q5970000 Abbotts Creek Arm of High Rock Lake Davidson NC 47 Turbidity, Iron, Dissolved oxygen P�,_�High Abbotts Creek Arm of Rock Lake Davidson SR 2295 Turbidity, Dissolved oxygen Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 148 Q5360000 Town Creek Arm of High Rock Lake Rowan I SR 2168 I I Turbidity, Iron, Dissolved oxygen Yadkin Pee Dee River Basin Association Monitoring Q2291000 Muddy Creek Forsyth I-40 Fecal coliform Q2479455 Salem Creek Forsyth SR 2740 None Q2540000 Salem Creek Forsyth SR 1120 None Q2570000 Salem Creek Forsyth SR 2991 Fecal colifomz Q2720000 Muddy Creek Forsyth SR 1485 Turbidity Q2810000 Yadkin River' Davie/ Davidson US 64 Turbidity Q4540000 Grants Creek Rowan 30D St. Extension Fecal coliform, Turbidity Q4600000 Grants Creek' Rowan Near mouth None Q4660000 Yadkin Rivera Rowan/ Davidson NC 150 Turbidity Q5240000 Town Creek Rowan 1-85 None Q5980000 Abbotts Creek Arm of High Rock Lake Davidson NC 47 None Lakes Assessment — Winston Lake Forsyth 1 station None — Salem Lake Forsyth 3 stations None — High Rock Lake Rowan/ Davidson 8 stations % DO saturation, Turbidity, Nutrients, Chlorophyll a, pH — Lake Wright Rowan 1 station None — Lake Corriher Rowan 1 station None Historical data of this type are available for this waterbody; refer to Appendix IL Sites may vary. Parameters are noted if in excess of state standards in more than 10 percent of samples collected within the assessment period (9/1996-8/2001). This site duplicates a DWQ ambient monitoring station. For more detailed information on sampling and assessment of streams in this subbasin, refer to the Basimvide Assessment Report - Yadkin Pee Dee River Basin (NCDENR-DWQ, June 2002), available from DWQ Environmental Sciences Branch at htm_/fwww.esb.enr.state.nc.us/bar.html or by calling (919) 733-9960_ Section B_ Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 149 Table B-8 Use Support Ratings Summary (2002) for Monitored and Evaluated Freshwater Streams (miles) and Lakes (acres) in Yadkin -Pee Dee River Subbasin 03-07-04 Use Support Category Units Supporting Impaired Not Rated No Data Total' Aquatic Life/Secondary Recreation miles acres 69.3 275.3 48.2 10,449.7 3.3 71.0 317.2 .341.3 438.0 11,137.3 Fish Consumption' miles acres 352.7 301.8 85.3 10,835.5 0.0 0.0 0.0 0.0 438.0 11,137.3 Primary Recreation miles acres 0.0 4,880.9 0.0 0.0 0.0 0.0 3.0 359.5 3.0 5,240.4 Water Supply miles acres 76.9 I1,084.5 j 0.0 0.0 0.0 0.0 0.0 0.0 76.9 11,084.5 ' Total stream miles/acres assigned to each use support category in this subbasin. Column is not additive because some stream miles are assigned to more than one category. ' These waters are impaired based on fish consumption advice issued for three species of freshwater fish due to mercury contamination. Refer to page 104 of Section A for details. 4.2 Status and Recommendations for Previously Impaired Waters This section reviews use support and recommendations detailed in the 1998 basinwide plan, reports status of progress, gives recommendations for the next five-year cycle, and outlines current projects aimed at improving water quality for each water. The 1998 Yadkin -Pee Dee River basin plan identified portions of Reynolds Creek, Salem Creek and Grants Creek as Impaired. These waters are discussed in further detail below. 4.2.1 Reynolds Creek (3.3 miles from source to Muddy Creek) 1998 Recommendations Biological surveys conducted in 1994 revealed that Reynolds Creek was Impaired downstream of the Sequoia WWTP. This facility was a package WWTP serving a residential community. DWQ recommended that an engineering alternatives analysis be conducted to determine the feasibility of eliminating this discharge and connecting to the Winston-Salem/Forsyth County collection system. Recommendations were also made for reducing nonpoint source pollution. Current Status Benthic macroinvertebrate communities in Reynolds Creek were sampled again at two locations in 2000. Due to reduced flow, the stream was too small for bioclassifications to be assigned. Upstream of the discharge, DWQ biologists found that there had been a slight decline over the six -year period, which is likely due to increased development in Lewisville. Downstream, significant problems still existed that were attributed primarily to the WWTP. Areas of sludge deposition were observed that were contributing to water quality problems. The Sequoia WWTP discharge was removed in July 2001. 2002 Recommendations Although Reynolds Creek is currently Not Rated due to its small size, significant water quality problems still exist. DWQ will continue to monitor this stream to evaluate any improvement Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 150 following the removal of the Sequioa WWTP discharge. However, local actions are needed to reduce the effects of nonpoint source pollution, particularly from stormwater runoff, and to restore habitat in the lower portion of the watershed. It is likely that Forsyth County and Lewisville will be required by DWQ to obtain an NPDES permit for municipal stormwater systems under the federal Phase II stormwater rules. 4.2.2 Salem Creek (12.0 miles from dam at Salem Lake to Muddy Creek) 1998 Recommendations Recommendations for the Salem Creek watershed include support for the City of Winston- Salem's stormwater program and call for further action by the city and Forsyth County to help maintain and improve water quality in the face of continuing development. DWQ planned to reevaluate the computer model used to determine the wasteload allocation for the Archie Elledge WWTP and adjust the NPDES permit accordingly, based on the outcome. Current Status The Salem Creek watershed continues to develop, particularly in the headwaters near Kernersville, but also on the lower end. Some habitat degradation was observed above Salem Lake, but the majority of water quality problems exist below the confluence with Brushy Fork. Biological surveys were conducted by DWQ at three sites below Salem Lake, and water chemistry samples were also collected at three sites. Although a small percentage of samples downstream of the Archie Elledge WWTP contained dissolved oxygen concentrations less than 5.0 mg/l, the WWTP does not seem to be adversely impacting the stream. Benthic macroinvertebrate communities were very similar above and below the WWTP. Significant habitat degradation was observed throughout the lower watershed, including severe bank erosion, a lack of riparian vegetation, and sedimentation leading to a very uniform sand/silt substate (i.e., lack of pool and riffle habitat). Additionally, the fish community site, which received a Poor bioclassification, is located upstream of the VVWTP discharge. Salem Creek, from the dam at Salem Lake to the confluence with Muddy Creek, remains Impaired. The geometric means of fecal coliform samples collected from three stations between 1998 and 2001 and one station between 1996 and 2001 from Salem Creek (307, 327, 368 and 773 colonies/100ml) indicate that the stream may not be suitable for primary recreation. In addition, fecal coliform concentrations were greater than 400 colonies/100ml in more than 20 percent of samples from each site. Salem Creek is not currently classified for primary recreation (Class B). However, the stream was historically placed on the 303(d) list for fecal coliform and a TMDL is being developed by DWQ. 2002 Recommendations Further investigation into the causes and sources of biological impacts to Salem Creek is needed before specific recommendations to improve water quality can be made. Local actions are needed to reduce sedimentation, turbidity and fecal coliform contamination and to promote the production of instream habitat by restoring riparian vegetation throughout the watershed. DWQ will develop a TMDL for fecal coliform and work with local agencies to implement it over the next five-year basinwide planning cycle. Many of the BMPs employed to reduce fecal coliform contamination will likely help reduce habitat degradation in the watershed also. In addition, Forsyth County and Kernersville are required to obtain NPDES permits for municipal Section B: Chapter 4 - Yadkin Pee Dee River Subbasin 03-07-04 151 stormwater systems under the Phase 11 stormwater rules. Refer to page 37 of Section A, Chapter 2 for details. Water Quality Improvement Proiects The Salem Creek watershed, including Peters Creek and Brushy Fork (03040101 170060), is one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 4.2.3 Grants Creek (1.2 miles from SR 1910 to Yadkin River) 1998 Recommendations The 1998 basin plan discussed water quality impacts from the Salisbury Grants Creek WWTP and Spencer Sowers Ferry Road WWTP discharges and Salisbury's plans to relocate the Grants Creek WWTP discharge to the Yadkin River. Recommendations were for DWQ to monitor the stream following the removal of this discharge and for local action to reduce nonpoint source pollution. Current Status Biological data were collected from two sites, and water chemistry data were collected from three sites along Grants Creek over the previous basinwide planning cycle: Although the uppermost site (above the WWTP discharges) received a Good -Fair bioclassification, biological surveys indicated severe habitat degradation as well as nutrient enrichment. Further downstream, Grants Creek is impaired by a combination of historical point source problems and current nonpoint source problems. At two water chemistry sites (above and below the WWTPs), turbidity concentrations were in excess of state standards in more than 10 percent of samples. The geometric means of fecal coliform samples collected from two stations between 1998 and 2001 and one station between 1996 and 2001 from Grants Creek (292, 231 and 291 colonies/100ml) indicate that the stream may not be suitable for primary recreation. In addition, fecal coliform concentrations were greater than 400 colonies/100ml in more than 20 percent of samples from each site. Grants Creek is not currently classified for primary recreation (Class B). However, the stream was historically placed on the 303(d) list for fecal coliform and a TMDL has already been developed by DWQ. The City of Salisbury relocated the Grants Creek WWTP discharge to the Yadkin River in 1998. The City of Spencer's Sowers Ferry Road WWTP continued to have significant and chronic problems with BOD as well as chronic problems with dissolved oxygen and total suspended solids over the most recent assessment period (1998-2001). However, in November 2000, the City of Salisbury purchased the Sowers Ferry Road WWTP. Salisbury worked throughout 2001 and 2002 to divert all flows into the Grants Creek WWTP and the Sowers Ferry Road WWTP discharge was eliminated by the end of 2002. Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 152 2002 Recommendations Although Grants Creek above the City of Salisbury is not Impaired, impacts are evident. Further investigation into the causes and sources of biological impacts in the lower portion of Grants Creek is needed before specific recommendations to improve water quality can be made. DWQ expects to see some improvement below the old Sowers Ferry Road WWTP during the next basinwide planning cycle due to Salisbury's elimination of this discharge. However, local actions will continue to be needed throughout the watershed to reduce sedimentation and turbidity and to promote the production of instream habitat by restoring riparian vegetation. DWQ's fecal coliform TMDL for Grants Creek was approved by the EPA in 2002. The study revealed that the sources of fecal coliform in the Grants Creek watershed are urban sources in the Landis, China Grove and Salisbury areas, livestock grazing and manure application on agricultural lands and pasturelands, and wildlife in the forested areas of the watershed. The Coliform Routing and Allocation Program was utilized to simulate instream fecal concentrations and to allocate the fecal coliform loads to the various sources. In order for water quality standards for fecal coliform to be met in Grants Creek, a nonpoint source load reduction of 33-60 percent under dry weather conditions and 85-97 under wet weather conditions must be met. The model estimates that WWTP discharges contribute an insignificant percentage of the fecal coliform loading in the watershed. In addition, both major discharges have now been removed from Grants Creek_ Therefore, the reduction allocation focuses on the fecal coliform loading from urban sources in the Landis, China Grove and Salisbury areas and livestock grazing and manure application on agricultural lands. These calculations are the first step in reducing fecal coliform concentrations in the watershed. Many of the BMPs employed to implement the TMDL will likely help reduce habitat degradation in the watershed as well. In addition, Landis, China Grove and Salisbury are required to obtain an NPDES permit for municipal stormwater systems under the federal Phase II stormwater rules. Refer to Section A, page 37 for details. Water Quality Improvement Projects The Grants Creek watershed (03040103 010010) is one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 4.3 Status and Recommendations for Newly Impaired Waters Town Creek, a portion of Muddy Creek and High Rock Lake are rated Impaired based on recent DWQ monitoring (1996-2001). This section outlines the potential causes and sources of impairment and provides recommendations for improving water quality. Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 153 4.3.1 Muddy Creek (15.2 miles from Mill Creek #3 to SR 2995) Current Status The headwaters of Muddy Creek flow from Stokes County, and the stream is currently the western boundary of the City of Winston-Salem. The watershed continues to develop, particularly in the headwaters near King, Tobbccoville and Rural Hall, but also on the lower end where Clemmons and Winston-Salem meet. Some habitat degradation was observed above the confluence with Mill Creek, but the majority of water quality problems exist below this point. On the low end, the stream exhibits some recovery below the confluence with South Fork Muddy Creek; however, impacts are evident in this portion of stream as well. The middle portion of Muddy Creek is Impaired based primarily on fish community data collected in 1996 and 2001. Benthic macroinvertebrate communities in this middle reach of stream have also received bioclassifications that indicate impairment, although these communities were not sampled at this location over the most recent assessment period. Water chemistry is collected at three locations along Muddy Creek. Elevated nutrients, turbidity and fecal coliform were observed over the five-year period (1996-2001). The geometric means of fecal coliform samples collected from two stations between 1998 and 2001 and one station between 1996 and 2001 from Muddy Creek (265, 255 and 488 colonies/100m1) indicate that the stream may not be suitable for primary recreation. Fecal coliform concentrations were greater than 400 colonies/100ml in more than 20 percent of samples from each site as well. Current methodology requires additional bacteriological sampling for streams with a geometric mean greater than 200 colonies/100m1 or when concentrations exceed 400 col/100ml in more than 20 percent of samples. However, these additional assessments are prioritized such that, as monitoring resources become available, the highest priority is given to those streams where the likelihood of full -body contact recreation is greatest. Muddy Creek is not currently classified for primary, recreation (Class B). The impairment of Muddy Creek is primarily attributed to nonpoint source pollution from stormwater runoff from construction sites and developed areas. The input of heavily developed and/or Impaired tributaries also contributes: Mill, Silas, Reynolds and Salem Creeks. 2002 Recommendations Further investigation into the actual causes and sources of biological impacts to Muddy Creek is needed before specific recommendations to improve water quality can be made; however, the potential for water quality improvement for this stream is still strong. Local actions are needed to reduce sedimentation, turbidity and fecal coliform contamination and to promote the production of instream habitat by restoring riparian vegetation throughout the watershed. In addition, Forsyth County as well as King, Tobbacoville, Rural Hall, Lewisville and Clemmons are required by DWQ to obtain an NPDES permit for municipal stormwater systems under the Phase H stormwater rules. Refer to Section A, page 37 for details. Section A, Chapter 4 contains more recommendations for reducing habitat degradation from stormwater runoff. Water Quality Improvement Projects Although Muddy Creek is not one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts, several of its tributary Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 154 watersheds have been selected. The Mill Creek, Silas Creek and South Fork Muddy Creek watersheds have been targeted. These watersheds will be given higher priority than nontargeted watersheds for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 4.3.2 Town Creek (15.4 miles from source to Crane Creek) Current Status Town Creek begins just east of Kannapolis and flows through Salisbury and East Spencer before reaching High Rock Lake. The City of Salisbury historically had a discharge from a WWTP on Town Creek. Significant improvement has been observed since the discharge was removed in 1990. However, both fish and benthic communities are Impaired in Town Creek. Habitat degradation was noted along with a few occurrences of low dissolved oxygen and elevated turbidity. The lower half of the watershed is heavily developed, and stormwater runoff is likely a major contributor to the impairment. There is one minor discharge in the headwaters which continues to be compliant with its NPDES permit. 2002 Recommendations DWQ plans to conduct further investigation into the causes and sources of the biological impairment of Town Creek during this basinwide planning cycle. DWQ will notify local agencies of water quality concerns regarding these waters and work with them to conduct further monitoring and to locate sources of water quality protection funding. In addition, Rowan County and Salisbury are required to obtain an NPDES permit for municipal stormwater systems under the Phase II stormwater rules. Refer to Section A, page 37 for details. Water Quality Improvement Projects The Town Creek watershed (03040103 010020) is one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 4.3.3 High Rock Lake (15,750 acres) 1998 Recommendations High Rock Lake was not rated Impaired during the assessment period leading up to the 1998 Yadkin -Pee Dee River basin plan. However, the lake was rated support threatened and is extensively discussed in the plan, indicating impacts to water quality that could lead to impairment. The plan focuses on problems with excessive algal growths related to high nutrient levels in the arms of the lake. Although nutrients were also high in the main body of the lake, designated uses seemed to be supported. Recommendations are for DWQ to investigate the feasibility of developing a nutrient strategy for the watershed and consider reclassifying the lake _ as Nutrient Sensitive Waters. DWQ also planned to require phosphorus limits for major discharges into the arms and urged all major dischargers in the watershed to identify ways to optimize phosphorus removal using existing capabilities. Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 155 Current Status Eight stations on High Rock Lake were monitored by DWQ in 1999, 2000 and 2001. This increased monitoring of High Rock Lake over the most recent assessment period has allowed DWQ to determine that the lake is Impaired. The decision is based on high levels of nutrients, combined with chlorophyll a, turbidity and percent dissolved oxygen saturation in excess of state standards. Low dissolved oxygen and high turbidity in the Abbotts Creek and Town Creek Arms are also contributing to aquatic life impairment. An extensive discussion of water quality data collected from High Rock Lake is found in Section A, Chapter 4 beginning on page 107. 2002 Recommendations The High Rock Lake watershed (map on page 279) comprises slightly more than half of the Yadkin -Pee Dee River basin. Recommendations for improving water quality in the lake are detailed in Section A, Chapter 4: Recommendations for Water Quality Issues Related to Multiple Subbasins in the Yadkin Pee Dee River Basin. The High Rock Lake part of the discussion begins on page 107. 4.4 Section 303(d) Listed Waters Currently, portions of six waters in this subbasin are listed on the state's draft 2002 303(d) list for biological impairment: Reynolds Creek, Salem Creek, Grants Creek, Town Creek and two small unnamed tnbutaries. Grants Creek and a portion of Salem Creek are also listed for fecal coliform and turbidity. A fecal coliform TMDL for Grants Creek has been developed by DWQ, and one for Salem Creek will likely be developed during this basinwide planning cycle. Refer to Appendix IV for more information on the state's 303(d) list and listing requirements. 4.5 Status and Recommendations for Waters with Notable Impacts Based on DWQ's most recent use support assessment, the surface waters discussed below are not Impaired. However, notable water quality impacts were documented. While these waters are not considered Impaired, attention and resources should be, focused on them over the next basinwide planning cycle to prevent additional degradation or facilitate water quality improvement. A discussion of how impairment is determined can be found in Appendix III. Although no action is required for these streams, voluntary implementation of BMPs is encouraged and continued monitoring is recommended. DWQ will notify local agencies and others of water quality concerns discussed below and work with them to conduct further monitoring and to locate sources of water quality protection funding. Additionally, education on local water quality issues is always a useful tool to prevent water quality problems and to promote restoration efforts. Nonpoint source agency contacts are listed in Appendix Vl. 4.5.1 Mill Creek Silas Creek Mill and Silas Creeks parallel Salem Creek in the Muddy Creek watershed. These streams are likely being impacted by stormwater runoff from the City of Winston-Salem. Mill Creek has not been sampled by DWQ, but the lower two-thirds of the watershed contain moderate road Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 156 coverage indicating large amounts of developed area, similar to the watershed of Silas Creek. The fish community of Silas Creek was sampled by DWQ for the first time in 2001. Severe habitat degradation was observed and the data indicated impairment. However, the stream was resampled in 2002 and received a Good -Fair bioclassification. This score is likely due to the reduction in nonpoint source pollution that accompanies an extended drought. Refer to Section A, Chapter 4 for recommendations and management strategies for reducing impacts of runoff from developed areas. The Mill Creek and Silas Creek watersheds (03040101 170020 and 170040) are two of 55 watersheds in the Yadkin -Pee Dee River basin that have been identified by the Wetlands Restoration Program as areas with the greatest need and opportunity for stream and wetland restoration efforts. These watersheds will be given higher priority than nontargeted watersheds for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 4.5.2 Salem Lake Kerners Mill Creek Although the most severe water quality problems in the Salem Creek watershed occur downstream of Salem Lake, habitat degradation has been observed in Kemers Mill Creek above the lake. In addition, this water supply lake exhibits signs of nutrient enrichment and a diverse assemblage of algae. The Lowery Creek arm exhibits slightly lower dissolved oxygen compared with the other two stations on Salem Lake. Local actions are needed to reduce the effects of nonpoint source pollution in the Salem Lake watershed, particularly from stormwater runoff from construction sites and developed areas. Kernersville is required to obtain an NPDES permit for municipal stormwater systems under the Phase 11 stormwater rules. Refer to page 37 of Section A, Chapter 2 for details. The Salem Creek watershed (03040101 170060) is one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 4.5.3 South Fork Muddy Creek South Fork Muddy Creek borders the City of Winston-Salem on the southeastern side. The watershed contains a mix of residential and agricultural land uses. Most of the new development is occurring in the Fiddlers Creek watershed. Substantial habitat degradation was observed during biological surveys of South Fork Muddy Creek below the confluence of Fiddlers Creek. The Good -Fair bioclassification could be due to the reduction in nonpoint source pollution that accompanies an extended drought. Local actions are needed to reduce the effects of nonpoint source pollution, particularly from stormwater runoff from construction sites and developed areas in Fiddlers Creek, but also from agricultural activities in other parts of the watershed. The South Fork Muddy Creek watershed (03040101 170070) is one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program Section B: Chapter 4 - Yadkin -Pee Dee River- Subbasin 03-07-04 157 (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 4.5.4 Noah Potts Creek South Potts Creek North and South Potts Creeks flow south in Davidson County near Lexington into the upper reaches of High Rock Lake. The South Potts Creek watershed (larger of the two) is mostly in agriculture, with the exception of the I-85 corridor and a large rail yard on the lower end. Some historic channelization is evident, and residential development is increasing along US 29/70 between Lexington and Spencer. One NPDES permitted discharge (Davidson County Churchland Elementary) is in significant noncompliance for ammonia in the headwaters. There is already more developed area in the North Potts Creek watershed and major channelization has occurred. Two NPDES permitted discharges (Davidson County Tyro Junior High and West Davidson High) are in significant noncompliance for BOD, ammonia and chlorine. DWQ sampled North Potts Creek in 1988, but there is no recent data for either stream. DWQ will attempt to conduct a special study of these streams during the next basinwide planning cycle to determine: 1) the level of impacts associated with these land uses and discharges; and 2) the contribution of this watershed to the impairment of High Rock Lake. In addition, local actions are needed to reduce the effects of nonpoint source pollution, particularly from stormwater runoff. 4.6 Additional Water Quality Issues with Subbasin 03-07-04 The previous parts discussed water quality concerns for specific stream segments. This section discusses water quality issues related to multiple watersheds within the subbasin. Information found in this section may be related to concerns about things that threaten water quality or about plans and actions to improve water quality. 4.6.1 NPDES Discharges Twenty-two of the 40 NPDES discharges had a few permit violations over the two-year review period (September 1999 - August 2001). Nine facilities are in significant noncompliance; six are Davidson County schools. Almost every school in Davidson County is in significant noncompliance for at least one parameter. Because the facilities are scattered throughout several subbasins, these problems and the plans to correct them are discussed on page 113 of Section A, Chapter 4. Color/Tex Finishing had significant problems meeting COD, pH and total suspended solids limits in 2000. The Sowers Ferry Road WWTP (originally owned by Spencer, then bought by Salisbury) was in significant noncompliance over the entire period of review for problems meeting BOD, dissolved oxygen and total suspended solids limits. This discharge was eliminated in 2002. The Hilltop Living Center had problems meeting BOD limits over the two- year review period. Section B: Chapter 4 - Yadkin Pee Dee River Subbasin 03-07-04 158 Fifteen facilities are required to monitor effluent toxicity; three have had significant compliance problems over the previous basinwide planning cycle. The Lucent Technologies groundwater remediation facility failed four consecutive chronic toxicity tests during the period from March to June of 1999- Facility staff replaced the system's carbon filter media and optimized application of treatment chemicals to address the problem. No failures have occurred since June 1999. Noncompliances in 1999 and 2000 at the City of Salisbury's Sowers Road WWTP seemed to be associated with operational problems at the WWTP. There were no WET test failures between September 2000 and 2002 when the discharge was eliminated. The Scarlett Acres Mobile Home Park WWTP has produced sporadic failures since it began operation in 1990. Its most recent noncompliances in 2001 have been attributed to poor operation and numerous power outages. 4.6.2 Projected Population Growth The population of Rowan County is projected to increase 32 percent, Davidson County — 25 percent, and Forsyth County — 26 percent between 2000 and 2020. Much of this development is likely to occur along highway corridors (I-40, I-85, US 64 and US 29/70) and in smaller suburban municipalities like King, Kernersville, Lewisville and Clemmons. Figure B-5 presents population increases between 1990 and 2000 for selected municipalities this subbasin. 8000 7000 6000 w 5000 S o. 4000 0 z 3000 2000 1000 ,114'�~ �1 a, °a�� °�5°q Oaf S°�G c° v Figure B-5 Population Increases for Selected Subbasin 03-07-04 Municipalities (1990-2000) Growth management within the next five years will be imperative in order to improve or maintain water quality in this subbasin.. Growth management can be defined as the application of strategies and practices that help achieve sustainable development in harmony with the conservation of environmental qualities and features of an area. On a local level, growth management often involves planning and development review requirements that are designed to maintain or improve water quality. Refer to Section A, Chapter 4 for more information about minimizing impacts to water quality from development. Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 159 4.6.3 The South Yadkin/Yadidn River Corridor Conservation Plan The LandTrust for Central NC (LTCNC) received $7,500 from the Conservation Trust for North Carolina and the Clean Water Management Trust Fund to develop a report evaluating the conservation needs and opportunities along 24 miles of the lower South Yadkin River and a 26- mile section of the Yadkin River above High Rock Lake. This corridor incidentally included a portion of lower Grants Creek as well. The South Yadkin/Yadkin River Corridor Conservation Plan was completed in December 2001. The highest priorities for conservation identified by the plan are land between Fourth Creek and the South Yadkin River, above and including the confluence of the two streams; and land between the South Yadkin River and the Yadkin River, above and including the confluence of the two rivers. There are large tracts of land (owned by Duke Power -Progress Energy) along the Yadkin River which are in close proximity to lands that are already by LTCNC. There are also large amounts of riparian land (owned by ALCOA) along both the South Yadkin and Yadkin Rivers. These Duke Power and ALCOA lands also received high priority for protection (Merrill, December 2001). The conservation plan has been integrated into the daily efforts of LTCNC while pursuing conservation opportunities in the Yadkin -Pee Dee River basin. Page 294 of Section C contains more information about The LandTrust for Central NC. You may also visit the website for details about the many lands which LTCNC helped place in conservation ownership at httii://%vww.landtrustcnc.org/vboutiandtrust.html. Section B: Chapter 4 - Yadkin -Pee Dee River Subbasin 03-07-04 160 Section B. Chapter 12 Yadkin -Pee Dee River Subbasin 03-07-12 Includes a portion of the Rocky River, Dutch Buffalo, Irish Buffalo, Goose and Crooked Creeks �'�a`'a•�_�_..,. r"::.f.;Y,+'y•3i_`-`.:.•_.�: �.,._ u"`-'•�f'd�=,. .. _ 12.1 Water Quality Overview Subbasin 03-07-12 at a Glance Land and Water Total area: 435 miz Stream miles: 317.1 Lake acres: 722.1 Population Statistics 1990 Est. Pop.: 125,021 people Pop. Density: 288 persons/mi' The middle section of the Rocky River flows east, then south, then east again dividing this subbasin almost in half. Tributaries in the upper half include Irish Buffalo and Dutch Buffalo Creeks flowing generally south. Smaller tributaries in the lower half include Clear, Goose and Crooked Creeks flowing generally northeast. The majority of the subbasin lies within Cabarrus County, but portions of Mecklenburg, Union and Stanly counties are also encompassed. Municipalities include Kannapolis, Concord, Locust, Mint Hill, Indian Trail, Lake Park and Unionville. I Land Cover (%) I Forest/Wetland: 53.6 Surface Water: 0.6 A map including the locations of NPDES discharges and Urban: 5.0 A. water quality monitoring stations is presented in Figure B- Cultivated Crop: 8.8 13. Table B-24 contains a summary of monitoring data Pasture/ types, locations and results. Use support ratings for waters Managed Herbaceous: 32.0 in this subbasin are summarized in Table B-25. Appendix � I provides a key to discharge identification numbers. Refer to Appendix III for a complete listing of monitored waters and more information about use support ratings. This subbasin is rapidly urbanizing, and land cover and population information become outdated quickly. Land cover information compiled between 1993 and 1995 describes approximately 50 percent of the land as forested, more than 40 percent in agricultural uses, and approximately 5 percent as urban. The population in 1990 was estimated to be just over 125,000 people. Estimates of subbasin population have not yet been made for the 2000 census data; however, it is likely that population increased substantially over the ten-year period. Population is projected to increase 57 percent in Mecklenburg County, 53 percent in Cabarrus County, and 70 percent in Union County between 2000 and 2020. There are 17 NPDES permitted discharges and seven registered animal operations within this subbasin. Facilities with compliance or toxicity problems are discussed in following sections. Water quality varies substantially across this subbasin, although most waters contain some water quality impacts. The headwaters of Dutch Buffalo Creek are classified WS-II and High Quality Waters. Section B_ Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 224 Figure B-13 Yadidn-Pee Dee River Subbasin 03-07-12 1 Diver k N S . ki IREDELL Kannapolis t—�zLF�a All Concord 96 China Grove Landis AIF CABARRUS F -2 73 72 mouni . B-3 Y Pleasant / ; 58 ROWAN 1CHill Gold /�;H i I I STAIDLY MECKLENBURG A42 Stanfield C., 31 �N7 Miht 32 Legend Hill ✓29 Subbasin Boundary 22 a S -'Rrver QD Ambient Monitoring Station ., NS 8- SSB-9 Benthic Station SSB 3 S6121-2 B-5 Fish Community Station Matthews 94B SSB-5 14, -4—tE�G 136 Fish Tissue Station Q83.6 000 23/ XPDES Disdrarges A major SSB-12 Ta Minor SSB43 16 UNION Use Support Rating Stalling f6nionville /V. supportiry I -Z Impaired Indian Trail Not Rated is A/ No Data SAM&A NCDENR Monroe V County Boundary Planning Branch 4/",,r primary Roads Basinwide Planning Program Unit 5 0 5 Miles municiparity March 21. 2003 19� Table B-24 DWQ Monitoring Locations, Bioclassifications and Notable Chemical Parameters (1998-2002) for Yadkin -Pee Dee River Subbasin 03-07-12 Site Stream County Road Biodassification or Noted Parameter' Benthic Macroinvertebrate Community Monitoring B-1 Rocky River' Cabarrus US 601 Fair B-2 Irish Buffalo Creek' Cabarrus SR 1132 Good -Fair B-3 Coldwater Creek` Cabarrus NC 49 Good -Fair B-4 Dutch Buffalo Creek' Cabarrus NC 200 Good -Fair SSB-11 Clear Creek Mecklenburg SR 3181 Good -Fair SSB-3 Goose Creek Mecklenburg SR 1004 Good Fair SSB-4 Goose Creek Union Glamorgan Rd. Good SSB-5 Goose Creek Union SR 1524 Good -Fair SSB-6 Goose Creek Union Below Fairfield Fair SSB-7 Goose Creek Union SR 1525 Poor SSB-8 Goose Creek Union SR 1533 Fair B-5 Goose Creek' Union US 601 Poor SSB-9 Goose Creek Union SR 1547 Fair SSB-1 Stevens Creek Mecklenburg Maple Hollow Rd. Good SSB-2 UT Stevens Creek Mecklenburg Thompson Rd. Not Impaired SSB-10 Duck Creek Union US 601 Fair B-6 Crooked Creek' Union SR 1547 Good -Fair SSB-12 N. Fork Crooked Cr' Union SR 1520 Fair SSB-13 N. Fork Crooked Cr Union SR 1514 Fair Fish Community Monitoring F-1 Irish Buffalo Creek' Cabarrus SR 1132 Good F-2 Coldwater Creek' Cabarrus NC 73 Good -Fair F-3 Dutch Buffalo Creek' Cabarrus SR 2622 Good Ambient Monitoring Q8090000 Irish Buffalo Creek Cabarrus SR 1132 Turbidity, Fecal coliform Q8210000 Rocky River Cabarrus US 601 Fecal coliform Q8360000 Goose Creek Union SR 1524 Fecal coliform Yadkin Pee Dee River Basin Association Monitoring Q8200000 Coldwater Creek Cabarrus SR 1132 Fecal coliform Q8210000 Rocky River' Cabarrus US 601 None Q8340000 UT Clear Creek Mecklenburg SR 3104 Dissolved oxygen, Fecal coliform Section B_ Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 226 Q8342000 Clear Creek Union US 601 Dissolved oxygen, Fecal coliform Q8355000 Rocky River Cabarrus SR 1114 None Q8359000 Goose Creek Union SR 4228 Fecal coliform Q8360000 Goose Creek' Union SR 1524 Dissolved oxygen, Fecal coliform Q8385000 Rocky River Union SR 1606 Turbidity Q8386000 N. Fork Crooked Cr Union SR 1520 Dissolved oxygen, Turbidity, Fecal coliform Q8386200 N. Fork Crooked Cr Union SR 1514 Dissolved oxygen, Turbidity, Fecal coliform Q8388000 Crooked Creek Union NC 218 Turbidity Q8388900 Crooked Creek Union SR 1601 Turbidity, Fecal coliform Lakes Assessment - Kannapolis Lake Rowan 2 sites None - Lake Fisher Rowan/Cabarrus 3 sites None - Lake Concord Cabamis 3 sites Turbidity Historical data of this type are available for this waterbody; refer to Appendix II. Sites may vary. Parameters are noted if in excess of state standards in more than 10 percent of samples collected within the assessment period (9/1996-8/2001). This site duplicates a DWQ ambient monitoring station. For more detailed information on sampling and assessment of streams in this subbasin, refer to the Basinwide Assessment Report - Yadkin -Pee Dee River Basin (NCDENR-DWQ, June 2002), available from DWQ Environmental Sciences Branch at hqp://www.esb.enr.state.nc.us/bar.html or by calling (919) 733-9960. Table B-25 Use Support Ratings Summary (2002) for Monitored and Evaluated Freshwater Streams (miles) and Lakes (acres) in Yadkin -Pee Dee River Subbasin 03-07-12 Use Support Category Units Supporting Impaired Not Rated No Data Total` Aquatic Life/Secondary Recreation miles acres 94.8 0.0 33.6 0.0 1.3 697.0 187.4 25.1 317.1 722.1 Fish Consumption' miles acres 0.0 0.0 317.1 722.1 0.0 0.0 0.0 0.0 317.1 722.1 Primary Recreation miles acres 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Water Supply miles acres 38.6 234.8 j 0.0 0.0 j 0.0 0.0 j 0.0 0.0 38.6 234.8 ' Total stream miles/acres assigned to each use support category in this subbasin. Column is not additive because some stream miles are assigned to more than one category. = These waters are impaired based on fish consumption advice issued for three species of freshwater fish due to mercury contamination. Refer to page 104 of Section A for details. Section B: Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 227 12.2 Status and Recommendations for Previously Impaired Waters This section reviews use support and recommendations detailed in the 1998 basinwide plan, reports status of progress, gives recommendations for the next five-year cycle, and outlines current projects aimed at improving water quality for each water. The 1998 Yadkin -Pee Dee River basin plan identified four Impaired streams in this subbasin. Goose Creek, Crooked Creek, and the North and South Forks of Crooked Creek are discussed below. 12.2.1 Goose Creek (17.0 miles from source to Rocky River) 1998 Recommendations Growth pressures, problems with wastewater discharges and infrastructure, and impacts from agricultural activities are discussed in the 1998 basin for the Goose Creek watershed. Recommendations are for DWQ to conducting modeling to evaluate the assimilative capacity of Goose Creek. DWQ planned to pursue enforcement action with some NPDES permit holders for past violations of discharge permits, and chlorine limits are recommended for existing discharges. In addition, the plan recommends local actions to reduce the effects of nonpoint source pollution, particularly from stormwater runoff, and to restore riparian habitat throughout the watershed. Status of Progress In 1998, the benthic macroinvertebrate community was sampled by DWQ at 11 sites in the watershed: 1 site on Duck Creek; 2 sites on Stevens Creek; and 8 sites on Goose Creek including the regular basinwide monitoring site at US Highway 601. Five sites (63 percent) received Fair or Poor bioclassification, indicating impairment. Three sites (37 percent) received Good -Fair or Good bioclassification, indicating the community is not Impaired. Stevens Creek received one Good bioclassification near the mouth and the other site was too small to assign a bioclassification to, but it was found to be not Impaired. Duck Creek received a Fair bioclassification near US Highway 601 in the lower portion of the watershed, indicating impairment. In 2001, only the US Highway 601 site was sampled by DWQ. This site is at the lower end of the watershed, but above the confluence with Duck Creek. The site contained fairly good instream habitat and riparian vegetation overall, but the streambanks were extremely unstable in places and there were few deep pools. The benthic macroinvertebrate community received a Poor bioclassification, as it had in 1998 and 1996. The specific conductance was high and there were many indicators of organic enrichment. No fish community samples were conducted. The Goose Creek watershed contains one ambient monitoring station at SR 1524 near Mint Hill (fairly high up in the watershed). A -summary of water chemistry monitoring over a five-year period ending in 2001 revealed that all nutrient levels are elevated. Phosphorus, in particular, exceeded the evaluation level (0.05 mg/1) 93 percent of the time, reaching a maximum of 3.70 mg/l. Dissolved oxygen data commonly showed supersaturated conditions, indicating algae blooms. There are six permitted wastewater discharges in the watershed: Oxford Glen WWTP on Stevens Creek; Ashe Plantation WWTP on Duck Creek; and Fairview Elementary WWTP, Section B: Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 228 Fairfield Plantation WWTP, Country Woods WWTP and Hunley Creek WWTP on Goose Creek. Each of these facilities received chlorine limits (which became effective by October of 2002) during the last cycle of NPDES permit renewals, as is recommended by the 1998 basin plan. However, owner/operators of the Oxford Glen and Ashe Plantation WWTPs decided to install ultraviolet disinfection systems. Compliance reports from the most recent review period (2000- 2001) show problems with excess flow at the Fairfield Plantation and Country Woods WWTPs. No other NPDES permit violations were observed in the Goose Creek watershed. The Hunley Creek WWTP is a member of the Yadkin -Pee Dee River Basin Association, and water chemistry samples are collected through the monitoring program at two locations on Goose Creek (upstream and downstream of the facility). Dissolved oxygen was less than 5.0 mg/1 in 8.6 percent of downstream samples compared with only 1.1 percent of upstream samples. Fecal coliform concentrations were reduced by half from 988 colonies/100ml upstream to 412 colonies/100m1 downstream. (The evaluation level is 200 colonies/100ml.) The geometric means of fecal coliform samples collected from one station between 1996 and 2001 and two stations between 1998 and 2001 from Goose Creek (241, 988 and 412 colonies/100ml) indicate that the stream may not be suitable for primary recreation. In addition, fecal coliform concentrations were greater than 400 colonies/100ml in more than 20 percent of samples from each site. Goose Creek is not currently classified for primary recreation (Class B). However, the stream was historically placed on the 303(d) list for fecal coliform and a TMDL has already been developed by DWQ. Goose Creek was historically placed on the 303(d) list for fecal coliform and DWQ is currently working with Mecklenburg County to develop a TMDL. Stevens Creek and Goose Creek from its source to SR 1524 just inside Union County are currently Supporting aquatic life and secondary recreation, although impacts were evident in 1998, particularly in the headwaters of Goose Creek. Duck Creek and Goose Creek from SR 1524 to the confluence with the Rocky River are Impaired. Currently, problems with point sources are limited to inflow and infiltration problems at the Fairfield Plantation and County Woods WWTPs. Nonpoint source pollution problems are associated with stormwater runoff from construction sites and developed areas, as well as agricultural activities. 2002 Recommendations DWQ, in coordination with other natural resource agencies, will develop a site -specific management strategy for the Goose Creek watershed which provides for the maintenance and recovery of water quality conditions necessary to sustain the Carolina heelsplitter. The strategy will likely contain recommendations for point and nonpoint sources of pollution (refer to page 32 for details). Mecklenburg and Union counties, as well as Mint Hill, Indian Trail and Lake Park, are required to obtain a NPDES permit for municipal stormwater systems under the Phase H stormwater rules (refer to page 37 of Section A, Chapter 2 for details). The City of Charlotte received a NPDES permit under the federal Phase I stormwater rules. DWQ applauds Charlotte-Mecklenburg's Surface Water Improvement and Management Program (page 299 contains details) and recommends that all local governments in the Goose Creek watershed implement programs to reduce the impacts of stormwater runoff, including local riparian buffer ordinances. Section B: Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 229 Although much work is currently being conducted in the Goose Creek watershed by DWQ, other natural resource agencies and local governments, local actions by citizens are still needed to reduce nonpoint source pollution. Many parts of the Goose Creek watershed could benefit greatly from riparian area restoration and protection. Section A, Chapter 4 outlines general best management practices for protecting and improving water quality. In addition, an organized group of dedicated citizens can be one of the most effective tools for affecting watershed protection and preservation of quality of life in communities. Water Quality Improvement Initiatives In 1999, the NC Wildlife Resources Commission initiated a project in the Stevens Creek watershed (tributary to Goose Creek in the headwaters of Mecklenburg County) to reduce the peak flows and pollutant load carried by stormwater from residential areas, improve streambanks through stabilization and buffering, conduct community education about use of household and lawn chemicals, increase community involvement in the protection and restoration of Stevens Creek, and implement livestock exclusion to prevent direct access to the creek or its tributaries. This project was funded in part through the Clean Water Act — Section 319 Program (page 273). The Goose Creek Watershed Advisory Committee was convened in December 2000 to make recommendations to local governments, state agencies and other appropriate organizations that would protect and improve water quality and wildlife habitat in the Goose Creek watershed. The committee is comprised of stakeholders representing diverse interests in the watershed. Refer to page 290 in Section C for details about the committee and its sources of funding. Appendix V contains a summary of the recommendations. The Goose Creek watershed (03040105 030020) is one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 12.2.2 Crooked Creek (13.1 miles from source to Rocky River) 1998 Recommendations The 1998 basin plan suggests that Crooked Creek is Impaired primarily by low dissolved oxygen problems and nonpoint source pollution in the upstream watersheds of the North and South Forks. The plan recommends that DWQ collect additional data and assess assimilative capacity for oxygen -consuming wastes before any additional discharges are permitted into the watershed. Status ofProgrress In 2001, sampling of the benthic macroinvertebrate community resulted in a Good -Fair bioclassification below the Union County Grassy Branch WWTP in the lower third of the watershed. Water chemistry data revealed elevated turbidity concentrations at two locations. DWQ biologists noted good habitat in Crooked Creek; however, indicators of organic enrichment were numerous. Crooked Creek is currently rated Supporting; however, the increase in bioclassification (from Fair in 1996) could be partly due to reduced nonpoint source pollution impacts as a result of the extended drought. Section B_ Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 230 full -body contact recreation is greatest. North Fork Crooked Creek is not currently classified for primary recreation (Class B). 2002 Recommendations Further investigation into the causes and sources of these water quality impacts is needed before recommendations to improve water quality can be made. However, local actions to reduce the effects of noupoint source pollution, particularly from stormwater runoff as further development occurs in the Crooked Creek watershed, will be an imperative part of improving water quality. 12.2.4 South Fork Crooked Creek (13.7 miles from source to Crooked Creek) 1998 Recommendations Streamflow in the upper Crooked Creek watershed is naturally very low in the summer months and smaller tributaries often stop flowing completely. Problems with low dissolved oxygen associated with the Union County WWTP discharge were thought to be contributing to impairment at the time of the 1998 basin plan. In 1996, Union County relocated its WWTP discharge to Crooked Creek downstream and some improvement in the stream was expected in the future as a result. DWQ recommended that no discharge containing an additional loading of oxygen -consuming waste be permitted into South Fork Crooked Creek. Status o Progress Due to reduced flows during an extended drought, DWQ did not resample South Fork Crooked Creek during the most recent basinwide planning cycle and the stream is currently not rated. 2002 Recommendations As resources and stream condition allow, DWQ will sample South Fork Crooked Creek to evaluate any improvement following the relocation of the Union County WWTP discharge during the next basinwide planning cycle. 12.3 Status and Recommendations for Newly Impaired Waters A portion of the Rocky River within this subbasin was rated Impaired based on recent DWQ monitoring (1998-2001). This section outlines the potential causes and sources of impairment and provides recommendations for improving water quality. 12.3.1 Rocky River (8.5 miles from Reedy Creek to Dutch Buffalo Creek) Current Status Benthic macroinvertebrates received a Fair bioclassification at a location one mile below the Water and Sewer Authority of Cabamts County (formerly Rocky River Regional) WWTP in 2001 and 2002. Previously, this segment of river received Good -Fair bioclassifications. This decline during an extended drought indicates point source problems. However, this portion of the Rocky River was included in a field -calibrated QUALM modeling analysis which was conducted by DWQ in the mid-1990s, and the WWTP has maintained compliance with its NPDES permit. Section B: Chapter 12 - Yadkin -Pee Dee Rtver Subbasin 03-07-12 232 Low flows in the Rocky River watershed are difficult to assess. USGS 7Q10 estimates for various reaches of the river were made at different times using varying methodologies and, at the time of modeling for the Rocky River Regional WWTP permit, did not provide a clear picture of low flow conditions. The geometric mean of fecal coliform samples collected between 1996 and 2001 from this portion of the Rocky River (234 colonies/100m1) indicates that the stream may not be suitable for primary recreation. Fecal coliform concentrations were greater than 400 colonies/100ml in nearly 22 percent of samples from this site as well. Current methodology requires additional bacteriological sampling for streams with a geometric mean greater than 200 colonies/100ml or when concentrations exceed 400 coU100ml in more than 20 percent of samples. However, these additional assessments are prioritized such that, as monitoring resources become available, the highest priority is given to those streams where the likelihood of fullbody contact recreation is greatest. The Rocky River is not currently classified for primary recreation (Class B). 2002 Recommendations Further investigation into the causes and sources of these water quality impacts is needed before recommendations to improve water quality can be made. Water QualityImprovementInitiatives The Rocky River watershed is one of three priority areas in the Yadkin -Pee Dee River basin under the USDA Environmental Quality Incentives Program (EQIP). EQIP provides technical, educational and financial assistance to farmers and ranchers to address soil, water and related natural resource concerns on their lands. Refer to page 274 in Section C for details. 12.4 Section 303(d) Listed Waters Currently, portions of four waters in this subbasin are listed on the state's draft 2002 303(d) list. Goose Creek is listed for fecal coliform and biological impairment. Crooked Creek and North and South Forks Crooked Creek are listed for biological impairment. In the future, another segment of the Rocky River will likely be added to the list for biological impairment. Appendix IV contains more information on the state's 303(d) list and listing requirements. 12.5 Status and Recommendations for Waters with Notable Impacts Based on DWQ's most recent use support assessment, the surface waters discussed below are not Impaired. However, notable water quality impacts were documented. While these waters are not considered Impaired, attention and resources should be focused on them over the next basinwide planning cycle to prevent additional degradation or facilitate water quality improvement. A discussion of how impairment is determined can be found in Appendix III. Although no action is required for these streams, voluntary implementation of BMPs is encouraged and continued monitoring is recommended. DWQ will notify local agencies and others of water quality concerns discussed below and work with them to conduct further monitoring and to locate sources of water quality protection funding. Additionally, education on Section B: Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 233 local water quality issues is always a useful tool to prevent water quality problems and to promote restoration efforts. Nonpoint source agency contacts are listed in Appendix VI. 12.5.1 Irish Buffalo Creek Coldwater Creek Irish Buffalo Creek drains Kannapolis and Concord in northeastern Cabarrus County, and much of the watershed is developed. Water chemistry samples revealed elevated phosphorus and turbidity levels. Benthic macroinvertebrates received a Good -Fair bioclassification in 2001. However, the fish community remains diverse despite these water quality impacts. Coldwater Creek makes up a large portion of the Irish Buffalo Creek watershed. With the exception of the Lake Concord watershed which is rapidly developing, there is very little urban area in the Coldwater Creek watershed. However, a decline in bioclassification was observed at NC 73 between 1996 (Good) and 2001 (Good -Fair). At the most downstream station, instream habitat was lacking and the site also received a Good -Fair bioclassification. The geometric means of fecal coliform samples collected from Irish Buffalo Creek between 1996 and 2001 (234 colonies/100m1) and Coldwater Creek between 1998 and 2001 (290 colonies/100ml) indicate that these streams may not be suitable for primary recreation. Fecal coliform concentrations were greater than 400 colonies/100ml in more than 20 percent of samples from each site as well. Current methodology requires additional bacteriological sampling for streams with a geometric mean greater than 200 colonies/100m1 or when concentrations exceed 400 col/100ml in more than 20 percent of samples. However, these additional assessments are prioritized such that, as monitoring resources become available, the highest priority is given to those streams where the likelihood of full -body contact recreation is greatest. Neither Irish Buffalo nor Coldwater Creeks are currently classified for primary recreation (Class B). Local actions to reduce the effects of nonpoint source pollution, particularly from stormwater runoff as fiirther development occurs in the Irish Buffalo Creek watershed, will be an imperative part of protecting water quality. The Kish Buffalo Creek watershed (03040105 020040) is one of 55 watersheds in the Yadkin -Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 12.5.2 Dutch Buffalo Creek The Dutch Buffalo Creek watershed in northeastern Cabarrus County is primarily agricultural, and many small headwater tributaries are dammed for farm ponds. Although the stream continued to receive a Good -Fair bioclassification, severe bank erosion and a lack of riparian vegetation was observed. Local actions are needed to reduce the effects of nonpoint source pollution, particularly from agricultural activities, and to restore habitat throughout the watershed. Refer to Section A, Chapter 4 for details about reducing habitat degradation. Section B: Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 234 The Dutch Buffalo Creek watershed (03040105 020060) is one of 55 watersheds in the Yadkin - Pee Dee River basin that has been identified by the NC Wetlands Restoration Program (NCWRP) as an area with the greatest need and opportunity for stream and wetland restoration efforts. This watershed will be given higher priority than a nontargeted watershed for the implementation of NCWRP restoration projects. Refer to page 278 in Section C for details. 12.6 Additional Water Quality Issues within Subbasin 03-07-12 The previous parts discussed water quality concerns for specific stream segments. This section discusses water quality issues related to multiple watersheds within the subbasin. Information found in this section may be related to concerns about things that threaten water quality or about plans and actions to improve water quality. 12.6.1 Projected Population Growth From 2000 to 2020, the estimated population increase for Mecklenburg County is 57 percent and for Cabarrus County is 53 percent. Growth management within the next five years will be imperative, especially in and around urbanizing areas and along highway corridors, in order to protect or improve water quality in this subbasin. Growth management can be defined as the application of strategies and practices that help achieve sustainable development in harmony with the conservation of environmental qualities and features of an area. On a local level, growth management often involves planning and development review requirements that are designed to maintain or improve water quality. Refer to Section A, Chapter 4 for more information about urbanization and development and recommendations to minimise impacts to water quality. 12.6.2 high Fecal Coliform Concentrations Fecal coliform bacteria are widely used as an indicator of the potential presence of pathogens typically associated with the intestinal tract of warm-blooded animals and are therefore found in their wastes. Coliform bacteria are relatively easy to identify and are usually present in larger numbers than more dangerous pathogens, even though they respond to the environment and to treatment in much the same way. Sources of fecal coliform bacteria, as well as other more dangerous pathogens, include runoff from pastures, feedlots, poultry operations and lagoons that do not employ appropriate best management practices. Other sources include straight pipes, leaking and failing septic systems, and noncompliant WWTPs. Wildlife and pet waste also contribute to elevated concentrations of pathogens. The water quality standard for fecal coliform bacteria is based on a geometric mean of 200 colonies/100m1 of five samples collected within 30 days, or 20 percent of samples having a concentration greater than 400 colonies/100ml. High levels of fecal coliform bacteria are widespread through this subbasin. Samples were collected from 13 locations on seven streams, and the geometric means for 10 locations (77 percent) were greater than 200 colonies/100ml over the five-year assessment period. These data indicate that many streams in this subbasin may not be suitable for primary recreation. Current methodology requires additional bacteriological sampling for streams with a geometric mean greater than 200 colonies/100ml. However, these additional assessments are prioritized such that, as monitoring resources become available, the Section B: Chapter 12 - Yadl-in-Pee Dee River Subbasin 03-07-12 235 highest priority is given to those streams where the likelihood of full -body contact recreation is greatest. Currently, no waters in this subbasin are classified for primary recreation (Class B). Section B: Chapter 12 - Yadkin -Pee Dee River Subbasin 03-07-12 236