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HomeMy WebLinkAboutBroad River Basin SummaryRi v e R Ba s i n De s c R i p t i o n The Broad River basin encompasses 5,419 square miles within North and South Carolina. The North Carolina portion covers 1,513 square miles - nearly 28 percent of the entire watershed. The headwaters and major tributaries in the Broad River basin begin in the Blue Ridge Mountains of western North Carolina. The river continues to flow south-southeast through the foothills and southern piedmont into Cherokee County, South Carolina where it eventually joins the Congaree and Santee Rivers and then the Atlantic Ocean. The geography of the Broad River basin itself contributes to its ecological significance. The basin drains a section of the Blue Ridge escarpment, but the area is primarily within the piedmont. This provides a wide range of habitat types. The Broad River basin is home to 15 rare aquatic and wetland-dwelling animal and plant species and includes a considerable portion of the South Mountains – a biologically rich area that is considered of national importance for its ecological assemblage. Five Natural Heritage Program (NHP) Priority Areas are found in the basin: the Rollins/South Mountains Natural Area, Hickory Nut Gorge, the Green River Gorge, the Pacolet River Gorge, and Pinnacle Mountain. Chimney Rock State Park and a portion of Crowders Mountain State Park are also located in the basin. It also contains 1,508 miles of freshwater streams. The average drainage area is 0.98 square miles per stream mile, but the average is much smaller in the western portion of the basin where there is mountainous terrain. Areas with high drainage density (total length of streams divided by total drainage basin) are associated with high flood peaks, high sediment production, relatively low suitability for traditional agriculture, and high development costs for the construction of buildings and the installation of roads and bridges. Po P u l at i o n & la n d Co v e r da t a Population distribution and land cover patterns are highly variable in the Broad River basin. Land use varies from generally undisturbed areas in the headwater tributaries to relatively urban areas around the Towns of Spindale, Forest City, Rutherfordton, and the City of Shelby. As seen in this basin, converting land from an undisturbed forested area to an urban commercial/residential community can have significant impacts on local waterways. Ri v e R Ba s i n a t a Gl a n c e co u n t i e s Buncombe, Cleveland, Gaston, Henderson, Lincoln, McDowell, Polk, Rutherford Municipalities Belwood, Boiling Springs, Bostic, Casar, Cherryville, Chimney Rock Village, Columbus, Earl, Ellensboro, Fallston, Forest City, Grover, Kings Mountain, Kingstown, Lake Lure, Lattimore, Lawndale, Mooresboro, Patterson Springs, Polkville, Ruth, Rutherfordton, Saluda, Shelby, Spindale, Tryon, Waco pe R M i t t e D Facilities NPDES WWTP Major: ..........................14 Minor: ...........................30 NPDES Nondischarge: ...............7 NPDES Stormwater General: ........................90 Individual: ..................... 2 Animal Operations: .................20 Mo n i t o R e D st R e a M Mi l e s (aq u a t i c li F e ) Total Stream Miles ...........1,500 mi Monitored: ......................570 mi Total Supporting: ..............463 mi Total Impaired:...................85 mi Total Not Rated: .................22 mi B r o a d ri v e r Ba s i n s u m m a r y HUC 03050105 2008 BR O A D R I V E R B A S I N P L A N O V E R V I E W 2 0 0 8 2 "à)"à) "à)"à)"à) "à) "à)"à)"à)"à)"à) "à) "à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à) "à) "à) "à) "à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à) "à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à)"à) "à) "à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à) "à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à) "à) "à)"à) "à) "à)"à) "à)"à) "à)"à) [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡[¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡[¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡[¡ [¡[¡[¡ [¡ [¡ ¢¡¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ %2 #0 %2 %2 #0 #0 #0 XY XY XY #* XYXY XY #* XYXYXY XY XY#* XY XY #* XY XY #* #* #* #* #* #*#* #* #* #*#* #*#* #*#* #* #* #* #* #*#* #* #* #* #* XY XY #* #* #*#* #* #* #* BUNCOMBE MCDOWELL HENDERSON RUTHERFORD POLK CLEVELAND BURKE LINCOLN GASTON Saluda Tryon Columbus Lake Lure Rutherfordton Spindale Forest City Bostic Ellenboro Mooresboro Lattimore Boiling Springs Earl Shelby Grover Kingstown Polkville Lawndale Fallston Casar Belwood Cherryville Waco Kings Mountain Gastonia 03050105110305010509 0305010508 0305010516 0305010507 0305010505 0305010506 03050105040305010501 0305010515 0305010512 0305010503 0305010502 LakeSummit Lake Adger Gr e en Riv er Green River Hungry River N o r t h Pa co l et Riv er W h ite o ak Creek W a ln u t Creek G r e e n Rive r B R O AD R IV ER M o untain Creek Little W hiteoa k Cre ek ReedypatchCreek BROAD RIVE R Lake Lure Cedar C reek Cove Creek S e c o nd Bro a d River Mill C r e e kE a s t B r a n c h M o u ntainCreek Cane Creek Roberso n Creek Big C a mp Creek Cleghorn Creek Cat h e y s Creek Flo y d s C r eek BROAD RIVER Second Broad River BROAD RIVE R Sandy R u n Cre e k B r u s h y C r e e k Gro g C r e e k B e a v e rd a m Creek First Broad River Hickory Creek Buffalo C r e ek Kings MountainReservoir B uffalo Creek Beas o n Cr e ek Muddy Fork NorthForkFi r stBroadRiver F ri s t Broad River Wards Cree k Duncans Creek Hinton C r eek BrierCreek Knob Creek Kings Creek Ruth 0 30,000 60,000 90,000 120,00015,000 Feet ®North Carolina Department of Environment and Natural Resources, Division of Water Quality,Planning Section, Basinwide Planning Unit October 28,2008 BROAD RIVER BASIN "à)"à) "à)"à)"à) "à) "à)"à)"à) "à)"à) "à) "à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à) "à) "à) "à) "à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à)"à) "à) "à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à) "à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à)"à) "à) "à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à) "à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à) "à) "à)"à) "à) "à)"à) "à)"à) "à)"à) [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡ [¡[¡ [¡ [¡ [¡ ¢¡¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ %2 #0 %2 %2 #0 #0 #0 XY XY XY #* XY XY XY #* XYXYXY XY XY #* XY XY #* XY XY #* #* #* #* #* #*#* #* #* #*#* #*#* #*#* #* #* #* #* #*#* #* #* #* #* XY XY #* #* #* #* #* #* #* BUNCOMBE MCDOWELL HENDERSON RUTHERFORD POLK CLEVELAND BURKE LINCOLN GASTON Saluda Tryon Columbus Lake Lure Rutherfordton Spindale Forest City Bostic Ellenboro Mooresboro Lattimore Boiling Springs Earl Shelby Grover Kingstown Polkville Lawndale Fallston Casar Belwood Cherryville Waco Kings Mountain Gastonia 03050105110305010509 0305010508 0305010516 0305010507 0305010505 0305010506 0305010504 0305010501 0305010515 0305010512 0305010503 0305010502 Lake Summit Lake Adger Green Riv e r Gre en River Hungry River North Pacolet Riv er W h it e oak Creek W a ln u t Creek G r e e n River B R O AD RIVER M o untain C r eek Little W hiteoak Creek Reedypatch Creek BROAD RIVE R Lake Lure Cedar Creek Cove Creek S e c o nd Broa d Riv er Mill Cr e e k E . B r. M o u nt ai n C r. Cane Creek Roberson Creek Big Camp Creek Cleghorn Creek Cath e y s Creek Flo y d s Cree k BROAD RIVER Second B road Riv er BROAD RIVER Sandy R un Creek Bru s h y C r e e k Grog Cr e e k B e a v e rda m C r eek First Broad River Hickory Creek Buffalo Cr e e k Kings Mountain Reservoir B uffalo Creek Beaso n Cre e k Muddy Fork North Fork Firs t Broad River F rist Broad River Wards Creek Duncans Creek Hinton Cre e k Brier Creek Knob Creek Kings Creek ChimneyRock Village Ruth 0 25,000 50,000 75,000 100,00012,500 Feet ®Division of Water Quality, Planning Section, Basinwide Planning UnitDecember, 2007 Legend WWTP NPDES Monitoring Stations NPDES Non Dischargers Aquatic Life Ratings Impaired NotRated Supporting 10-Digit HUC Boundary Municipality County Boundary XY Major #*Minor %2 Major #0 Minor ¢¡Ambient Monitoring Station [¡Fish Monitoring Station "à)Benthos Monitoring Station Fi g u r e 1 Br o a d ri v e r Ba s i n ov e r v i e w Ma P "à)"à) "à)"à)"à) "à) "à)"à)"à)"à)"à) "à) 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BURKE LINCOLN GASTON Saluda Tryon Columbus LakeLure Rutherfordton Spindale Forest City Bostic Ellenboro Mooresboro Lattimore BoilingSprings Earl Shelby Grover Kingstown Polkville Lawndale Fallston Casar Belwood Cherryville Waco Kings Mountain Gastonia 03050105110305010509 0305010508 0305010516 0305010507 0305010505 0305010506 03050105040305010501 0305010515 0305010512 0305010503 0305010502 LakeSummit LakeAdger Green Riv er Green River Hungry River N o rt h Pacolet Riv er W hiteoak Creek W aln ut Creek Gree n River B R OAD R IV ER M ountain Creek Little W hiteoak Creek ReedypatchCreek BROAD RIVE R Lake Lure Cedar Creek Cove Creek S e cond Bro ad River Mill C r e ekE a st Bra n c h M o u ntainCreek Cane Creek Roberson Creek Big Ca mp Creek Cleghorn Creek Cat h e ys Creek Flo yd s Cr e ek BROAD RIVER Second Broad River BROAD RIVER Sandy R un Cre e k B ru sh y C r e e k Grog C r e ek B e a v erd a m Creek First Broad River Hickory Creek Buffalo C re ek Kings MountainReservoir B uffalo Creek Beas o n Creek Muddy Fork NorthForkFirstBroadRiver Fr ist Broad River Wards Cree k Duncans Creek Hinton C r eek BrierCreek Knob Creek Kings Creek Ruth 0 30,000 60,000 90,000 120,00015,000 Feet ®North Carolina Department of Environment and Natural Resources, Division of Water Quality,Planning Section, Basinwide Planning Unit October 28,2008 3 BR O A D R I V E R B A S I N P L A N O V E R V I E W 2 0 0 8 "à)"à) "à)"à)"à) "à) "à)"à)"à)"à)"à) "à) "à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à) "à) "à) "à) "à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à) "à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à)"à) "à) "à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à) "à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à) "à) "à)"à) "à) "à)"à) "à)"à) "à)"à) [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡[¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡[¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡[¡ [¡[¡[¡ [¡ [¡ ¢¡¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ %2 #0 %2 %2 #0 #0 #0 XY XY XY #* XYXY XY #* XYXYXY XY XY#* XY XY #* XY XY #* #* #* #* #* #*#* #* #* #*#* #*#* #*#* #* #* #* #* #*#* #* #* #* #* XY XY #* #* #*#* #* #* #* BUNCOMBE MCDOWELL HENDERSON RUTHERFORD POLK CLEVELAND BURKE LINCOLN GASTON Saluda Tryon Columbus LakeLure Rutherfordton Spindale Forest City Bostic Ellenboro Mooresboro Lattimore Boiling Springs Earl Shelby Grover Kingstown Polkville Lawndale Fallston Casar Belwood Cherryville Waco Kings Mountain Gastonia 03050105110305010509 0305010508 0305010516 0305010507 0305010505 0305010506 03050105040305010501 0305010515 0305010512 0305010503 0305010502 LakeSummit LakeAdger GreenRiver Green River HungryRiver NorthPacoletRiver WhiteoakCreek WalnutCreek G r e e n Rive r B R O AD R IV ER M o untain Creek LittleWhiteoa k Cre ek ReedypatchCreek BROAD RIVE R LakeLure CedarCreek Cove Creek S e c o nd Bro a d River Mill C r e e kE a s t B r a n c h M o u ntainCreek Cane Creek Roberso n Creek Big C a mp Creek CleghornCreek Cat h e y s Creek Flo y d s C r eek BROAD RIVER Second Broad River BROAD RIVE R Sandy R u n Cre e k B r u s h y C r e e k Gro g C r e e k B e a v e rd a m Creek First Broad River Hickory Creek Buffalo C r e ek Kings MountainReservoir B uffalo Creek Beas o n Cr e ek Muddy Fork NorthForkFi r stBroadRiver F ri s t Broad River Wards Cree k Duncans Creek Hinton C r eek BrierCreek Knob Creek Kings Creek Ruth 0 30,000 60,000 90,000 120,00015,000 Feet ®NorthCarolinaDepartmentofEnvironmentandNaturalResources, DivisionofWaterQuality,PlanningSection, BasinwidePlanningUnit October28,2008 Fi g u r e 1 Br o a d ri v e r Ba s i n ov e r v i e w Ma P "à)"à) "à)"à)"à) "à) "à)"à)"à)"à)"à) "à) "à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à) "à) "à) "à) "à)"à)"à) "à)"à)"à) "à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à)"à) "à) "à)"à)"à) "à)"à)"à)"à) "à)"à)"à)"à) "à)"à) "à)"à)"à) "à)"à)"à) "à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à)"à) "à)"à)"à)"à)"à)"à)"à)"à) "à) "à)"à) "à) "à)"à) "à)"à) "à)"à) [¡ [¡[¡ [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡[¡ [¡ [¡ [¡ [¡ [¡[¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡ [¡[¡ [¡[¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡ [¡[¡[¡ [¡[¡[¡ [¡ [¡ ¢¡¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ ¢¡ %2 #0 %2 %2 #0 #0 #0 XY XY XY #* XYXY XY #* XYXYXY XY XY#* XY XY #* XY XY #* #* #* #* #* #*#* #* #* #*#* #*#* #*#* #* #* #* #* #*#* #* #* #* #* XY XY #* #* #*#* #* #* #* BUNCOMBE MCDOWELL HENDERSON RUTHERFORD POLK CLEVELAND BURKE LINCOLN GASTON Saluda Tryon Columbus Lake Lure Rutherfordton Spindale Forest City Bostic Ellenboro Mooresboro Lattimore BoilingSprings Earl Shelby Grover Kingstown Polkville Lawndale Fallston Casar Belwood Cherryville Waco Kings Mountain Gastonia 03050105110305010509 0305010508 0305010516 0305010507 0305010505 0305010506 03050105040305010501 0305010515 0305010512 0305010503 0305010502 LakeSummit LakeAdger GreenRiver Green River Hungry River NorthPacoletRiver W hiteoak Creek W aln ut Creek G re e n River B R O AD R IV ER M ountain Creek Little Whiteoak Creek ReedypatchCreek BROAD RIVE R LakeLure Cedar Creek Cove Creek S e c ond Broa d River Mill Cre ekE ast B ranchMo untainCreek Cane Creek Roberson Creek Big CampCreek Cleghorn Creek Cath e y s Creek Flo yd s Cr eek BROAD RIVER Second Broad River BROAD RIVER Sandy Run Cree k Brush y C reek Grog Creek B e averda m Creek First Broad River HickoryCreek Buffalo C reek Kings MountainReservoir B uffalo Creek Beas o n Creek Muddy Fork NorthForkFir stBroadRiver Frist Broad River Wards Cree k Duncans Creek Hinton C reek BrierCreek Knob Creek KingsCreek Ruth 0 30,000 60,000 90,000 120,00015,000 Feet ®NorthCarolinaDepartmentofEnvironment and Natural Resources, DivisionofWaterQuality,PlanningSection,BasinwidePlanningUnitOctober28,2008 4 BR O A D R I V E R B A S I N P L A N O V E R V I E W According to 2001 NRI Land Cover data, nearly 66 percent of the land in the basin is forested, and approximately 23 percent is agricultural. Nine percent is developed. All or portions of eight counties are located in the Broad River basin, and there are 27 municipalities. Much of the population can be found around the Towns of Spindale, Rutherfordton, Forest City, and the City of Shelby. For more information, follow the link to the Population & Land Cover in the Broad River Basin chapter. cu R R e n t Wa t e R qu a l i t y st a t u s Of the 1,508 stream miles in the Broad River Basin, 570 miles were monitored by DWQ. Impaired stream segments are shown in Figure 1 as red lines. Table 1 provides descriptions of impaired streams in the basin along with reason for impairment. Twelve stream segments within the Broad River basin were found to be impaired due to turbidity or biological integrity. aM B i e n t sa M P l i n g During this assessment period, chemical and physical measurements were obtained by DWQ from eight ambient monitoring stations located throughout the basin. Two basinwide patterns of interest emerged: declining specific conductance and declining pH. Both of these parameters generally appear to have an inverse relationship with water flow when compared to flow data available from two USGS gaging stations. Between August 2003 and May 2004, however, pH deviated from this pattern and dropped significantly lower at five of the eight stations. No stressor has been identified to explain this observation. Approximately 570 stream miles were assessed for aquatic life (37.8 percent). The number of impaired stream miles jumped from 4.7 miles in 2002 to 85 miles in 2006 (Figure 2). This increase is attributed to exceedences in water quality standards mostly due to nonpoint source pollution. Standards were exceeded for turbidity in several stream segments throughout the basin. There are nearly 61 stream miles classified for primary recreation (Class B) in the Broad River basin. No waters are impaired in the recreation use support category; however, 29.5 miles are Not Rated. Fecal coliform bacteria in these segments exceeded 400 colonies/100 milliliter (mL) in greater than 20 percent of the samples collected. There are nearly 480 stream miles currently classified for water supply in the Broad River basin. No waters are impaired in the water supply use support category. No site-specific fish consumption advisories have been issued in the Broad River basin; however, there is a statewide advisory for several fresh water fish species. Site-specific and statewide advisories can be found on the NC Department of Health and Human Services (DHHS) web site. Bi o l o g i C a l sa M P l i n g In the Broad River basin, a total of 80 benthic and fish sites were evaluated during the assessment period. Sixty of those sites were sampled during the basinwide monitoring cycle, and 20 additional sites were sampled as part of special studies throughout the entire river basin. Thirteen sites were sampled for the first time in 2005, thus increasing the sampling efforts by 25 percent. Benthos Thirty-two benthic sites were sampled in the Broad River Basin between January 2002 and December 2006. An additional 15 sites were sampled as part of a special study. Nine sites rated Excellent, a significant improvement from the five that were identified as Excellent Fi g u r e 2 aq u a t i C li F e us e su P P o rt Ca t e g o r y (Mo n i t o r e d st r e a M s ) 1998 2002 Supporting 531.5 463.2Not Rated 10 13.4 Impaired 4.7 93.2 Supporting 97% Not Rated 2% Impaired 1% Not Rated 2% Impaired 16% Supporting 82% 1998-2002 1998 2002Supporting 531.5 463.2 Not Rated 10 13.4 Impaired 4.7 93.2 Supporting 97% Not Rated 2% Impaired 1% Not Rated 2% Impaired 16% Supporting 82%2002-2006 15% 4% 81% 5 BR O A D R I V E R B A S I N P L A N O V E R V I E W 2 0 0 8 in 2000. Most of this improvement is represented in Good sites moving to Excellent, but one site on Hinton Creek improved dramatically from Good-Fair to Excellent. Other benthic sites remained static. Fish Community Twenty-eight fish community basinwide sites were sampled. Thirteen of these sites were sampled for the first time during this monitoring cycle. An additional five sites were sampled as part of a special study. Three sites saw an increase in rating (i.e., Good-Fair to Good); eleven sites did not change; and one site in Sandy Run Creek decreased from Good to Fair. The dramatic decline may be the result of lingering impacts from drought conditions during the previous assessment period followed by extremely high flow events in the fall of 2004. Wa t e R qu a l i t y st R e s s o R s In most cases, habitat is degraded by the cumulative effect of several stressors acting in concert. These stressors often originate in the upstream portions of the watershed and may include runoff from impervious surface, sedimentation, and erosion from construction, general agricultural practices, or other land disturbing activities. Naturally erodible soils in the Broad River basin make streams highly vulnerable to these stressors. Habitat degradation (as indicated by impaired biological integrity and high turbidity) was identified as a stressor for nearly 270 miles of streams in the Broad River basin. The distribution of turbidity violations and sample locations make it difficult to isolate a single source of erosion in the Broad River basin. However, it appears that violations are highest in urban transition and agricultural areas. Violations are lowest in the upper part of the basin where land use is predominantly forested. This trend demonstrates the importance of protection and conserving stream buffers and natural areas. Fecal coliform bacteria and low pH are also stressors identified in the Broad River basin. Even though no waters in the basin were Impaired for fecal coliform bacteria, concentrations were above the 400 colonies/100 milliliter (mL) water quality guideline in more than 20% of samples at four of the eight ambient monitoring stations. The presence of fecal coliform bacteria in the aquatic environment indicates that the water has been contaminated from the fecal material of humans or other warm-blooded animals. Low pH was noted in two stream segments: First Broad River and Sugar Branch. Normal pH levels for streams in the Broad River basin should be between 6.5 and 7.2. Values below 6.5 may indicate the effects of acid rain or other acidic inputs. Values above 7.5 are often indicative of an industrial discharge. Re c o M M e n D a t i o n s More specific recommendations for water quality stressors can be found in the 10-digit HUC watershed chapters. wa t e r qu a l i t y st r e s s o r s : Turbidity: £ (See Statewide Recommendations). Fecal Coliform Bacteria: £ Fence livestock out of stream corridors. Educate the general public about properly disposing of pet waste. Provide public pet waste containers in local parks and along greenways. Nutrients: £ Educate the general public and farmers on the impacts of over fertilization. Adopt and implement a stormwater control ordinance to reduce nutrients through appropriate BMPs. ad d i t i o n a l st u d i e s a n d /o r Mo n i t o r i n g : Red tent in the Second Broad River (See £Chapter 3). Loss of fish communities with multi age groups in Roberson and Brushy Creeks (See £ Chapter 3 & Chapter 5). Low pH problems in the First Broad River, Beaverdam Creek and Sugar Branch (See £ Chapter 4 & Chapter 5). Additional monitoring is needed to determine the main source of excess nutrients £ through out the basin. 6 BR O A D R I V E R B A S I N P L A N O V E R V I E W 2 0 0 8 Watershed Management Plans are needed, where specified within watershed chapters, £ to address basinwide stressors and issues brought on by growth pressures. Impacts of growth on ORW and HQW designated waters (See £map). Co o r d i n at e d eF F o rt s : Support stormwater and sediment and erosion control ordinances where specified £ within the watershed chapters. Work with the Division of Land Resources and the Division of Soil & Water Conservation £ to improve education and implementation of BMPs and buffer requirements for Trout Waters (See Trout Waters map). Continue support of restoration projects on impaired streams £ la k e lu r e da M : Minimum flow and stage release requirements are needed for the dam at Lake Lure. Extreme periodic low and high flows are causing biological impairments in a portion of the Broad River directly below the dam. DWQ will work with the Division of Water Resources and other agencies to address this situation. st a t e w i d e re C o M M e n d a t i o n s : Target turbidity impairments with the implementation of BMPs, support the £ establishment of local Sediment & Erosion Control Programs, and Stormwater Ordinances and determine what cases may be attributed to natural base sediment loads because of highly erodable soils vs. human caused erosion. An increased collaboration between all agencies involved in sediment control, riparian £ buffers and stormwater management programs will be the focus of a statewide effort to address turbidity concerns throughout the state. This may lead to the determination for the need of a statewide stormwater program. lo c a l initiatives Local initiatives allow local people to make decisions that affect change in the community, protect natural resources, and combine professional and historical expertise to holistically understand the challenges and opportunities of tackling watershed protection. By working in coordination across jurisdictions and agency lines, more funding opportunities are available, and it is easier to generate necessary matching or leveraging funds. This could potentially allow local entities to do more work and be involved in more activities because their funding sources are diversified. The more localized the project, the better the chances for success. During this assessment period, $29,690,439 were spent by federal, state and local agencies on restoration and protection of the Broad River basin. For more information, follow the link to the Local Initiatives in the Broad River Basin chapter. Table 1 can be seen on the following page. BR O A D R I V E R B A S I N P L A N O V E R V I E W 2 0 0 8 7 ta B l e 1: iM P a i r e d wa t e r s in t h e Br o a d ri v e r Ba s i n as s e s s Me n t un i t st r e a M na M e Po t e n t i a l st r e s s o r s Po t e n t i a l so u r C e s 9-(22)b Broad River Habitat Degradation Mine Drainage 9-(25.5)b Broad River Turbidity 9-26b Cleghorn Creek Habitat Degradation; Nutrient Impacts Stormwater Runoff; WWTP NPDES 9-41-13-(6)b Catheys Creek Habitat Degradation Impervious Surface; Stormwater Runoff 9-41-13-3 Mill Creek Habitat Degradation Impoundment 9-41-13-7-(3)b Hollands Creek Habitat Degradation Stormwater Runoff; Impervious Surface 9-46a Sandy Run (headwaters) Habitat Degradation General Agriculture/Pasture 9-50-(1)First Broad River Low pH -- 9-50-(28)First Broad River Turbidity -- 9-53-(5)Buffalo Creek Turbidity --