Peace and Myakka River Water Quality Summary 2002 - Southwest ...

More documents

Recommendations

Info

LIST OF TABLESTable 1. Stations where monthly water quality monitoring was conducted,by water year............................................................................................................ 6Table 2. Florida stream Water Quality Index (WQI)values, water years1998 - 2001 .......................................................................................15Table 3. Estimated annual TN loads (metric tons N/yr).....................................25Table 4. Estimated annual DIN loads (metric tons N/yr) ...................................26Table 5. Estimated annual NO 2+3 - N loads (metric tons N/yr) ..........................27Table 6. Estimated annual NH 4 - N loads (metric tons N/yr) .............................28Table 7. Estimated annual TP loads (metric tons P/yr) .....................................29Table 8. Estimated annual PO 4 - P loads (metric tons P/yr)..............................30Table 9. Estimated annual TSS loads (metric tons/yr) ......................................31xiv
1.0 INTRODUCTION1.1 BACKGROUNDDuring the 1980’s and 1990’s a number of federal, state and regional resourcemanagement programs designated the Charlotte Harbor watershed as a prioritymanagement area. Protection and enhancement of water quality for use by people andwildlife are fundamental goals of these watershed management efforts.In 1996 a watershed assessment report funded by the Southwest Florida WaterManagement District emphasized the important role that monitoring data play insupporting sound watershed management decisions, and recommended that morefrequent (e.g., biweekly or monthly) water quality monitoring be initiated at selectedsites in the Peace and Myakka River basins (Squires et al. 1996). Thatrecommendation, and concerns about the sufficiency of the information currentlyavailable on water quality conditions in the Charlotte Harbor watershed, motivated anumber of organizations to work cooperatively to implement the water quality monitoringand assessment project covered in this report.Using funds provided by the District and the Peace River/Manasota Regional WaterSupply Authority, and in-kind services provided by the Charlotte Harbor EnvironmentalCenter, the District, the Florida Department of Environmental Protection, and the City ofPunta Gorda, the cooperating organizations initiated a monthly water quality monitoringprogram at a number of stations in the Peace River watershed in October 1997. InOctober 1998 the program was expanded to include an additional station in the PeaceRiver watershed and a number of stations in the Myakka River basin. In order toprovide information on annual mass loadings of priority water quality constituents eachof these stations was co-located with an existing stream gaging station, wheremeasurements of stream flow are recorded on a continuous basis by the U.S.Geological Survey. (The locations of these USGS gaging stations, which for technicalreasons must be sited in the freshwater, non-tidal portions of a watershed, are shown inFig. 1 and summarized in Table 1 below.)To encourage timely analysis and dissemination of the water quality data collectedduring the initial years of the cooperative monitoring program, the Charlotte HarborNational Estuary Program provided funding for the preparation of three annual projectreports (CHEC 1999, 2000, 2001). To help readers interpret this information in thecontext of regional water quality trends, the initial reports also included analyses ofwater quality and streamflow trends occurring at selected stations in the Peace andMyakka River basins during the years 1970 through 1998.In addition to the watershed monitoring program, the District, as part of its SurfaceWater Improvement and Management (SWIM) program, also carried out a monitoringproject in Charlotte Harbor that included portions of the most downstream, tidallyinfluencedreaches of the Peace and Myakka rivers. (The locations of these stationsare shown in Fig. 18, below). The SWIM monitoring project began in January 1993 andwas ended in December 2000, in preparation for a multi-agency monitoring program1
Page 1 and 2: Peace and Myakka RiverWater Quality
Page 3 and 4: CONTENTSExecutive Summary .........
Page 5 and 6: REPORT ORGANIZATION AND SCOPEThe pr
Page 7 and 8: “Good” water quality conditions
Page 9 and 10: The primary manmade influences incl
Page 11 and 12: Yields of total suspended solids (T
Page 13 and 14: are transported from fresh to more
Page 15: LIST OF FIGURESFigure 1. Map showin
Page 19 and 20: maintaining water quality at levels
Page 21 and 22: on the initial day of field work; t
Page 23 and 24: Figure 1. Locations of USGS gaging
Page 25 and 26: ANNUAL RAINFALLANNUAL STREAMFLOW% O
Page 27 and 28: For this study, annual average WQI
Page 29 and 30: • Big Slough Canal near Myakka Ci
Page 31 and 32: Table 2. Annual WQI values for non-
Page 33 and 34: Peace River at Zolfo Springs (USGS
Page 35 and 36: Horse Creek near Myakka Head (USGS
Page 37 and 38: Myakka River near Sarasota (USGS ga
Page 39 and 40: 3.0 CONSTITUENT LOADS AND YIELDSEst
Page 41 and 42: Table 3. Estimated annual TN loads
Page 43 and 44: Table 5. Estimated annual NO 2+3 -N
Page 45 and 46: Table 7. Estimated annual TP loads
Page 47 and 48: Table 9. Estimated annual TSS loads
Page 49 and 50: Myakka City gaging station (in wate
Page 51 and 52: PEA CE CREEK CANAL nr WAHNETASADDLE
Page 53 and 54: PEACE CREEK CANAL nr WAHNETASADDLE
Page 67 and 68:
###TidalMyakkaRiverTidalPeaceRiverS
Page 69 and 70:
Median color values for Florida riv
Page 71 and 72:
ecorded at least once during most y
Page 73 and 74:
5.0 REFERENCESCanfield, D., and M.
Page 75 and 76:
Water Quality Conditionsand Polluta
Page 77 and 78:
TURBIDITY (NTU), BY STATION AND WAT
Page 79 and 80:
TURBIDITY, BY STATION AND WATER YEA
Page 81 and 82:
TSS, BY STATION AND WATER YEARGAGE_
Page 83 and 84:
COLOR (PCU), BY STATION AND WATERGA
Page 85 and 86:
COLOR, BY STATION AND WATER YEARGAG
Page 87 and 88:
pH, BY STATION AND WATER YEARGAGE_N
Page 89 and 90:
SPEC. COND. (uS/CM), BY STATION AND
Page 91 and 92:
SPEC. COND., BY STATION AND WATER Y
Page 93 and 94:
DO, BY STATION AND WATER YEARGAGE_N
Page 95 and 96:
CHLA [MONOCHROMATIC, uG/L], BY STAT
Page 97 and 98:
CHLA [MONOCHROMATIC], BY STATION AN
Page 99 and 100:
NH4-N, BY STATION AND WATER YEARGAG
Page 101 and 102:
NO23-N (MG N/L), BY STATION AND WAT
Page 103 and 104:
NO23-N, BY STATION AND WATER YEARGA
Page 105 and 106:
TKN, BY STATION AND WATER YEARGAGE_
Page 107 and 108:
PO4-P (MG P/L), BY STATION AND WATE
Page 109 and 110:
PO4-P, BY STATION AND WATER YEARGAG
Page 111 and 112:
TP, BY STATION AND WATER YEARGAGE_N
Page 113 and 114:
TOC (MG/L), BY STATION AND YEARGAGE
Page 115 and 116:
TOC, BY STATION AND YEARGAGE_NUM WY
Page 117 and 118:
Near-surface salinity (ppt)SITE WY
Page 119 and 120:
Near-surface salinity (ppt)SITE WY
Page 121 and 122:
Near-surface color (PCU)SITE WY N M
Page 123 and 124:
Near-surface TSS (mg/L)SITE WY N Mi
Page 125 and 126:
Near-surface TSS (mg/L)SITE WY N Mi
Page 127 and 128:
Near-surface turbidity (NTU)SITE WY
Page 129 and 130:
Secchi depth (m)SITE WY N Minimum 2
Page 131 and 132:
Secchi depth (m)SITE WY N Minimum 2
Page 133 and 134:
Near-surface pHSITE WY N Minimum 25
Page 135 and 136:
DO (mg/L) - all depthsSITE WY N Min
Page 137 and 138:
DO (mg/L) - all depthsSITE WY N Min
Page 139 and 140:
Near-surface PO 4 —P (mg P/L)SITE
Page 141 and 142:
Near-surface DIN (mg N/L)SITE WY N
Page 143 and 144:
Near-surface DIN (mg N/L)SITE WY N
Page 145 and 146:
Near-surface chlorophyll-a (µg/L)S
show all

Peace and Myakka River Water Quality Summary 2002 - Southwest ...

Create successful ePaper yourself

Delete template?

Save as template?