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ANNUAL REPORT MCFRBA (January 2004 – December 2004)
ANNUAL REPORT (January 2004 – December 2004) MCFRBA Acknowledgements Mr. Bill Kreutzberger of CH2M Hill has provided invaluable assistance to the MCFRBA during the past six years in the area of data evaluation and by sharing his extensive knowledge and many years of experience in the water quality profession. Thanks to Lauren Elmore of NC DWQ who conducted a thorough review of this report and provided excellent comments and feedback that measurably improved this document. A special thanks to all of the members of the MCFRBA Technical Committee for their hours of meetings and commitment to participation in our efforts to better manage the water resources of the Cape Fear River. Presented By: Charles Ham, Chairman MCFRBA ORGANIZATIONAL CHART TABLE OF CONTENTS I. INTRODUCTION A. Report Purpose B. Background II. MCFRBA DESCRIPTION A. Organizational Information B. Financial Information III. MONITORING & RESEARCH PROGRAMS A. Ambient Monitoring Program 1. Monitoring Program Description 3. B. Research & Special Projects 1. Water Quality Evaluation Behind Lock & Dams 2. Nutrient Reduction Evaluation 3. Clean Metals Project 4. Continuous Monitoring Station L&D #3 5. Little Cross Creek BMP Study IV. Miscellaneous A. QA/QC Issues/Monitoring Exception Report B. Association Significant Issues C. Field Audit V. APPENDICES A. B. C. D. Water Quality Data By Station –Jan. 04 Through Dec. 04 Statistical Summary of Data Collected Jan. 04 Through Dec. 04 Flow Data Sub-Basin Maps I. I.A. INTRODUCTION REPORT PURPOSE This report has been prepared to provide interested parties with general information regarding the Middle Cape Fear River Basin Association’s activities during calender year 2004. The report describes the Association’s organizational structure, financial position, current, and future monitoring and research activities. This report also includes a summary of the current water quality findings for the middle Cape Fear River Basin. I.B. BACKGROUND The middle section of the Cape Fear River stretches from NC 42 near Moncure to Lock and Dam number 1 near Riegalwood. It includes approximately 2000 square miles of drainage basin and approximately 2700 miles of perennial streams (approximately 22% of the land and stream miles in the Cape Fear River Watershed). The area of study is highlighted in red in Figure 1. Figure 1 Prior to July of 1998 the water quality data that was being collected in the middle section of the Cape Fear River was sporadic, uncoordinated, and lacked adequate collection protocols to ensure data quality. Municipal and industrial wastewater dischargers did most of the sampling and data collection as part of their NPDES permit requirements. Each entity was responsible for ambient data collection upstream and downstream of their respective discharge. Parametric coverage was usually minimal, including basic field measurements and occasionally BOD, Fecal Coliform, Ammonium, and specific metals. The sampling usually occurred from the bank of the river or stream rather than mid-stream, and frequently resulted in data that was not representative of the true condition of the water body. 1 In 1997, a coalition of dischargers in the middle section of the Cape Fear River approached the North Carolina Division of Water Quality (NCDWQ) with a request to implement a more comprehensive water quality monitoring program in the middle Cape Fear River in exchange for a waiver of the ambient monitoring requirements in their NPDES permits. NCDWQ agreed to the request and in July of 1998 the Middle Cape Fear River Basin Association’s water quality monitoring program was initiated. Members of the MCFRBA signed a Memorandum Of Agreement with the NCDWQ binding them with participation in the monitoring program. If a member withdraws from the Association their upstream & downstream ambient monitoring requirements in their NPDES permit immediately go back into effect. Aqua Tech Environmental Laboratories of Sanford, NC conducted the first three years of the monitoring. In the spring of 2001, the Association re-competed the monitoring project and a new contractor, SIMILABS of Burlington, NC was awarded the project. SIMILABS (recently purchased and now known as Pace Laboratories) took over the project in July 2001. In the Spring of 2004 the MCFRBA began experiencing problems with Pace and their contract was not renewed. The MCFRBA entered into negotiations with several labs and ultimately selected Meritech as the new contractor. Meritech began collecting and analyzing the samples in July 2004. In addition to the ambient monitoring program, the Association has initiated several research projects to gain a better understanding of the forces driving water quality in the Middle Cape Fear River. These projects include a clean metals study, a continuous water quality monitoring station at Lock & Dam number 3 (parametric coverage including dissolved oxygen [DO], pH, temperature, and conductivity), two studies to better characterize algal productivity with nutrient influences in the mainstem of the Cape Fear River, a sub-basin assessment of a 303(d) listed stream in Cumberland County, and a fecal coliform study of Cross Creek in the Fayetteville area. Summaries of these projects are included in Section III.B of this report. 2 II. MCFRBA DESCRIPTION II.A. ORGANIZATIONAL INFORMATION The Middle Cape Fear River Basin Association is a legal, non-profit organization, which was incorporated in the spring of 1998. The purpose of the Association is to better understand the processes that influence water quality in the Cape Fear River. The primary goals of the Association are to: • • • Maintain a stakeholder coalition Implement a comprehensive water quality monitoring program, which provides key data for specific water quality management decisions Encourage effective water resource management strategies The Association is governed by its Board of Directors, which includes one representative from each dues paying member. The Board of Directors has ultimate responsibility for all financial actions, membership, election of officers, and decisions affecting the coalition. The The MCFRBA Board of Directors as of January 1, 2004: ORGANIZATION Carolina Power & Light Carolina Trace Utilities Broadway Danaher Controls Dunn DuPont Elizabethtown Erwin Fayetteville PWC Fort Bragg Fuquay Varina Harnett County Utilities Holly Springs DAK/DTF Raeford Smithfield Packing Spring Lake Mid Carolina COG NPDES PERMIT NC0003433, NC0039586 NC0038831 NC0059242 NC0001121 NC0043176 NC0003573 NC0026671 NC0064521 NC0023957, NC0050105, NC0076783 NC0003964 NC0028118 NC0030091, NC0021636, NC0031470, NC0007684, NC0048101 NC0063096 NC0003719 NC0026514 NC0078344 NC0030970 Not Applicable REPRESENTATIVE Steve Cahoon Wyman McDaniel Craig Buchanan Rod Lang Billy Addison Mike Johnson Steve Williams Kenneth Fail Chad Ham Lynn Vaughnn Chris Grimes Gary Averitte Thomas Tillage Penny Mahoney Mike Lucas Jeff Musselwhite Jack Vannoy Jim Caldwell Officers of the MCFRBA, July 2004 through June 2006: Chad Ham, Chairman Gary Averitte, Vice-Chair Mike Johnson, Treasurer Lynn Vaughnn, Secretary 910-223-4702 910-893-2424 910-678-1155 910-907-2419 [email protected] [email protected] [email protected] [email protected] 3 The Association formed a Technical Committee to plan and implement the ambient monitoring program and special research projects. The Technical Committee meets approximately every other month to review current projects, to plan future activities, and to make recommendations for action to the Board of Directors. Technical Committee members represent a broad range of stakeholders with expertise in water quality research and management issues and they serve on a volunteer basis. The Technical Committee is open to participation to anyone that would like to attend. The current Technical Committee members are listed below. AFFILIATION MCFRBA Board Members NC DWQ Fayetteville City/County Stormwater Mid Carolina Council of Governments Triangle J Council of Governments Cape Fear River Assembly US Geological Survey Murphy-Brown Co. CH2M Hill Town of Cary Meritech Laboratories UNC Wilmington II.B. CONTACT All MCFRBA Board Members Cam McNutt, Jay Sauber, Lauren Elmore, Paul Rawls, Don Register Greg Caison, Jeff Brown Jim Caldwell, Suzanne Tindol Sidney Miller Don Freeman Mary Giorgino Howard Hobson Bill Kreutzberger Leila Goodwin Frank Paztor Jim Merritt FINANCIAL INFORMATION FOR FISCAL YEAR 2003 - 2004 Major budget highlights for FY 2003 – 2004 included: • • • • • • Total NPDES coalition contributions were $125,000 Total Grant monies received were $26,692 Total Ambient Monitoring Program costs were $109,812 Total research and special projects costs were $45,901 Total miscellaneous and administrative costs were $8,283 (5.5 of total income received) End of year balance forward was $41,783 4 Financial Statement for FY 2002 – 2003: MCFRBA FINANCIAL STATEMENT FY 2003-2004 Income Received Balance Forward: NPDES Discharger Contributions: Interest Income: Ambient Monitoring Smithfield 02-03: Continuous Monitoring: Nutrient Reduction Study Grant: Ambient Monitoring Smithfield 03-04: Sub-Basin Restoration Grant: Fecal Coliform (Infrared Survey): Other: TOTAL INCOME: Expenses Paid CFRA Support: Ambient Monitoring: Database Upgrade: Sub-Basin Restoration PII: USGS Continuous Monitoring: Productivity Study PII: Fecal Coliform (Infrared Survey): Other Expenses: TOTAL EXPENDITURES: Carry Over: $41,804.00 $125,000.01 $402.16 $8,103.55 $9,380.14 $3,000.00 $8,089.07 $2,500.00 $5,000.00 $2,500.00 $205,779.92 $5,000.00 $109,812.12 $5,000.00 $20,000.00 $9,380.14 $6,521.25 $5,000 $3,282.68 $163,996.19 $41,783.73 5 III. MONITORING & RESEARCH PROGRAMS III.A. AMBIENT MONITORING PROGRAM III.A.1 MONITORING PROGRAM DESCRIPTION The Middle Cape Fear River Basin Association (MCFRBA) has entered into a Memorandum of Agreement with the NC Division of Water Quality (NC DWQ) to conduct the upstream/downstream monitoring required by its members’ NPDES permit. This monitoring began in July of 1998 and will continue as long as the coalition remains active. The current monitoring program required by the MOA for the middle Cape Fear River (CFR) includes twenty-four stations, which were established in cooperation with the NC DWQ to monitor water quality near point source discharges. In addition, the MCFRBA, in cooperation with NC DWQ, has added an additional six monitoring stations at strategic locations in the middle Cape Fear River Basin to gather data that is more comprehensive in nature. Water quality samples are analyzed on a regular basis for a range of parameters including temperature, dissolved oxygen, conductivity, pH, total phosphorus, ammonium, nitrite-nitrate, TKN, and metals. All monitoring data collected as part of this program is submitted to NCDWQ on a regular basis and is also compiled in a database that is available to MCFRBA members, Cape Fear River Assembly, and others as requested. Several changes were made to some of the detection levels in the MCFRBA MOA in June 2004. These changes are discussed in greater detail in Section IV.B of this report. Sample stations are located throughout the middle section of the Cape Fear River and the coverage includes the main stem of the river as well as most major tributaries. Figure 2 is a list of station locations, and Figure 3 lists parametric coverage for each station. Station maps are found in Appendix D. 6 MCFRBA SITE # 1 2 C1 C2 3 26 4 C3a 5 27 6 7 8 10 C4 28 12 13 14 16 17 18 C5 20 21 C6 22 23 24 25 STORET # B6160000 B6200000 B6130500 B6230000 B6320000 B6252000 B6370000 B6485000 B6840000 B7280000 B6830000 B7300000 B7480000 B7500000 B7590000 B7679300 B7700000 B8230000 B8290000 B8302000 B8305000 B8306000 B8315000 B8320000 B8339000 B8340100 B8340130 B8340650 B8348000 B8349000 LOCATION Bridge at NC 42 Highway 42 Gaging SR 1500 Lower River SR 1418 River Road SR 1441 Chalybeate US 401 US 401 Lillington Kieth Hills Golf Course NC 217 at Erwin Manchester Road SR 2021 Titan Roberts NC 210 Hoffer Water Treatment I-95 Busness I95/Hwy 301 US 401 Bypass SR 1432 Golf Course RF Creek at NC 87 DuPont Water Intake Power lines, no road SR 1316 Tar Heel (Boat) River Marker 80, below SR 1320 Burney Road US 701 Elizabethtown Above Lock and Dam 2 NC 53 River Marker 70, no road River Marker 55, no road SR 1730, Elwell Ferry above Lock and Dam 1 LAT 35.5500 35.5590 35.5592 35.4875 35.5140 35.4281 35.4080 35.3907 35.3198 35.1932 35.3270 35.2630 35.0680 34.9830 35.7317 34.9995 34.9680 34.9570 34.8490 34.7840 34.7450 34.6830 34.7317 34.6320 34.6270 34.6470 34.6240 34.5330 34.4740 34.4050 7 LONG -79.0250 -78.9730 -79.0550 -78.9094 -78.7870 -78.8240 -78.8130 -78.7527 -78.6948 -78.9856 -78.7230 -78.7420 -78.8550 -78.8480 -78.7164 -79.2148 -79.1100 -78.8420 -78.8280 -78.7990 -78.7850 -78.6860 -78.7164 -78.6050 -78.5780 -78.5567 -78.5540 -78.4390 -78.3690 -78.2930 COUNTY Chatham Chatham Lee Harnett Harnett Harnett Harnett Harnett Harnett Cumberland Harnett Cumberland Cumberland Cumberland Cumberland Hoke Hoke Cumberland Cumberland Bladen Bladen Bladen Bladen Bladen Bladen Bladen Bladen Bladen Bladen Bladen Figure2 MCFRBA SAMPLE STATION LOCATIONS SUB-BASIN CPF07 CPF07 CPF07 CPF07 CPF07 CPF07 CPF07 CPF07 CPF13 CPF14 CPF13 CPF14 CPF15 CPF15 CPF15 CPF15 CPF15 CPF15 CPF16 CPF16 CPF16 CPF16 CPF16 CPF16 CPF16 CPF16 CPF16 CPF16 CPF16 CPF16 STREAM CLASS WS-IV CA C WS-IV WS-IV HQW WS-IV WS-IV WS-IV WS-IV HQW WS-V C WS-IV C WS-IV CA C C B B C C C C C C C C C C WS-V WS-IV WS-IV CA WATERBOD Cape Fear i Buckhorn Lick Creek Avents Creek Kenneth Neills Creek Cape Fear Buies Creek Cape Fear Lower Little Upper Little Lower Little Cape Fear Cape Fear Cross Creek Rockfish Rockfish Rockfish Cape Fear Cape Fear Cape Fear Cape Fear Harrison Cape Fear Cape Fear Turnbull Cape Fear Cape Fear Cape Fear Cape Fear STORET # B6160000 B6200000 B6130500 B6230000 B6320000 B6252000 B6370000 B6485000 B6840000 B6830000 B7280000 B7300000 B7480000 B7500000 B7590000 B7679300 B7700000 B8230000 B8290000 B8302000 B8305000 B8306000 B8315000 B8320000 B8339000 B8340100 B8340130 B8340650 B8348000 B8349000 6 6 6 6 6 6 6 6 6 6 6 6 6 6 Additional Field Events During Summer 6 Nutrients #/year 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 Fecal Coliform #/year 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 5 5 5 5 Chl a #/year 5 Lab Turbidity #/Year 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 8 Depth = Surface, Middle, Bottom. Surface samples are collected at approximately 0.1 meters. Field Measurements Only for Middle and Bottom Field Parameters = DO, pH, Temp C, Conductivity Nutrients = TP, NH4+, NO2+NO3, TKN Metals = Using clean techniques - Al, As, Cd, Cr, Cu, Fe, Hg, Ni, Pb, Zn, and Mn Summer = May, June, July, August, September, October Chl a = to be collected in May, June, July, August, September SITE # 1 2 C1 C2 3 26 4 C3a 5 6 27 7 8 10 C4 28 12 13 14 16 17 18 C5 20 21 C6 22 23 24 25 Field Events #/year 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 FIGURE 3 MCFRBA SAMPLE STATION PARAMETRIC COVERAGE TSS #/year 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 LTBOD #/year 6 6 6 6 6 Metals #/year (see note) Depth S S S S S S S S S S S S S,M,B S,M,B S S S S S,M,B S,M,B S,M,B S,M,B S S,M,B S,M,B S S,M,B S,M,B S,M,B S,M,B III.A.2. SUMMARY OF 2004 AMBIENT MONITORING DATA The following sections summarize the results of the data collected from the January to December 2004. For the purpose of this summary the data has been grouped into three areas, Upper Middle CFR, Central Middle CFR, and Lower Middle CFR. Upper Middle CFR is the area above Fayetteville and includes sub-basins CFP07, CPF13, and CPF14. The Central Middle CFR includes the Fayetteville metro area to above Lock & Dam #3 and includes sub-basin CPF15. The Lower Middle CFR includes the area from the headwaters of Lock & Dam #3 to Lock & Dam #1 and includes sub-basin CPF16. Figure 4 CFP 07 CFP 13 CFP 14 CFP 15 CFP 16 9 Streams were rated as Good, Fair, or Poor based on compliance with the water quality standards for dissolved oxygen, fecal coliform, turbidity, chlorophyll a, and metals. Stations with 0 % to 10 % violations were rated as Good, 11 % to 25 % Fair, and greater than 25% Poor. III.A.2.1 Dissolved Oxygen (DO) Overall there were no significant dissolved oxygen problems in the middle section of the Cape Fear River in 2004 (Figure 5). In the Upper Middle and Lower Middle CFR there were no recorded exceedances of the instantaneous DO standard of 4 mg/l. In the Central Middle Cape Fear River the chart indicates 17% of the stations had a rating of poor. However, these exceedances all occurred at one station, B7700000, which is Rockfish Creek at SR1432. This area is heavily influenced by swamp drainage. Dissolved Oxygen 2004 % Good % Fair % Poor 100% 90% 80% 70% 60% 50% 100% 100% 83% 40% 30% 20% 10% 0% Upper Middle CFR Central Middle CFR Lower Middle CFR Figure 5 III.A.2.2 Fecal Coliform Fecal coliform levels were assessed by comparing the geometric mean of the data collected to the water quality standard of 200 colonies per 100 milliliters, and comparing the raw data to see if more than 20% of the data points exceeded the water quality standard of 400 colonies per 100 milliliters. If either of these criterion was exceeded the water quality at that station was considered poor. There were no fecal coliform problems in either the Upper Middle or Lower Middle Cape Fear River. However, in the Central Middle Cape Fear River 50% of the stations rated as poor for fecal coliform (Figure 6). In 2004 fecal coliform was elevated at stations B7500000 (CFR at I-95 By-Pass), B7700000 (Rockfish Creek at SR1432), and B7590000 (Cross Creek at US 301). 10 Fecal Coliform 2004 % Good % Poor 100% 90% 80% 70% 60% 50% 100% 100% 40% 30% 50% 20% 10% 0% Upper Middle CFR Central Middle CFR Lower Middle CFR Figure 6 III.A.2.3 Turbidity During 2004 the turbidity standard was rarely exceeded at any station (Figure 7). The only station exceeding the turbidity standard in 2004 was B6130500 (Lick Creek at SR 1500). Turbidity 2004 % Good % Fair % Poor 100% 90% 80% 70% 60% 50% 92% 100% 100% Central Middle CFR Lower Middle CFR 40% 30% 20% 10% 0% Upper Middle CFR Figure 7 11 III.A.2.4 Chlorophyll a Chlorophyll a is collected at five stations in the Middle Cape Fear River Basin’s sample area. The stations are B6160000 (CFR above Buckhorn Dam), B8290000 (CFR above L&D #3), B8305000 (CFR SR1316), B8339000 (CFR above L&D#2), and B8349000 (CFR above L&D#1). Figure 8 shows that 20% of the stations were rated as poor for chlorophyll a. However, these exceedances all occurred at one station, B6160000, which is the CFR above Buckhorn Dam. Chlorophyll a 2004 20% 0% % Good % Fair % Poor 80% Figure 8 III.A.2.5 Metals Metals are collected at five stations in the Middle Cape Fear River Basin’s sample area. These stations include B6370000 (CFR at US 401 in Lillington), B6840000 (CFR at NC 217 at Erwin), B7500000 (CFR at I95 By-Pass below Fayetteville), B8290000 (CFR above L&D #3), and B83490000 (CFR above L&D #1). Data comparisons were made to the North Carolina water quality standards and action levels. There were no exceedances of the water quality standard for Pb, Ni, Cr, Cd, Mn, Hg, or As. The action level was exceeded for Cu, Zn, and Fe quite frequently at several stations (Figure 9). For Al, the Federal criterion was used, however, the State of North Carolina has not yet adopted the Federal standard. Storet # B6370000 B6840000 B7500000 B8290000 B8349000 Stream Class WS-IV WS-V C C WS-IV CA Water Body CFR CFR CFR CFR CFR Location Description US 401 Lillington NC 217 at Erwin I-95 DuPont Water Intake Above L&D1 Pb 0% 0% 0% 0% 0% Figure 9 12 Ni 0% 0% 0% 0% 0% Cr 0% 0% 0% 0% 0% Cd 0% 0% 0% 0% 0% Cu Zn 67% 0% 50% 0% 17% 17% 0% 0% 0% 0% Fe 67% 67% 33% 20% 40% Mn Al Hg 0% 100% 0% 0% 100% 0% 100% 0% 100% 0% 0% 100% 0% As 0% 0% 0% 0% 0% III.A.3. LONGTERM TRENDS The following sections summarize the long-term trends of the data collected during the July 1998 to December 2004 time period and conclusions that have been reached from this analysis. III.A.3.1 Dissolved Oxygen (DO) Average DO saturation above Buckhorn Dam and Lock & Dam #3 is consistently elevated. The Chlorophyll a (Chl. a) data suggests this is due to photosynthetic activity. The Chl. a levels above Buckhorn Dam are higher than would typically be expected in a river. Average summer values were 19.7 and 24.1 ug/l behind Buckhorn Dam and Lock & Dam #3, respectively (Fig. 10) in the ’99 through ’04 period. Chl a levels show a high negative correlation with elevated DO saturation at these stations. Average Summer % DO Saturation verses Average Cla Average Chlorophyl a 99 - 04 High Saturation Low Saturation Average DO Saturation 99 - 04 120 50 45 40 35 80 30 24.1 60 25 19.7 20 Buckhorn Dam 40 L&D 3 13.2 Cla ug/l % DO Saturation 100 L&D 2 L&D 1 8.9 20 15 10 5 0 0 168 151 141 116 100 96 91 88 80 73 72 70 55 48 39 River Mile Figure 10 The trend analysis shows DO levels in the section of the river below Lock and Dam #3 tend to be relatively low. While the “average” DO values for the entire stretch were above the 5 mg/l water quality standard (Figure 11), the “minimum” values were often below the 5 mg/l daily average standard and in several instances dipped below the instantaneous standard of 4 mg/l (figure 12). In 2001, Dr. Don Francisco conducted an evaluation of Sediment Oxygen Demand (SOD) data collected by NC DWQ, Long Term BOD data, and the NPDES discharger’s data. Based on the available information, the calculations of BOD loading do not account for the amount of oxygen demand being exerted on the system. Part of the problem could be elevated turbidity levels, which will reduce photosynthesis, thereby reducing oxygen inputs into the system. 13 It has also been noted that during low flow conditions there is very little current in the river. Below the confluence of the CFR and Rockfish Creek the river basin narrows considerably and there is relatively little input from tributaries. It has been hypothesized that since there doesn’t appear to be enough BOD loading to account for the oxygen demand being exerted, but the DO is still low in the river, the re-aeration rate must also be low. Therefore, the low DO values are not likely due to a large oxygen demand, but more likely due to a slight increase in oxygen demand combined with very low reaeration rates, which is not atypical for a low-slope river in the coastal plain. Average Summer DO - 99 - 04 (Summer = May Through September) WQ Standard Average DO 99 - 04 9 8 7 DO mg/l 6 5 4 3 2 L&D #3 Buckhorn Dam L&D #2 L&D #1 1 0 168 151 141 116 100 96 91 88 80 73 72 70 55 48 39 River Mile Figure 11 Minimum DO - Summers of 98, 99, 00, 01, 02, 03, & 04 (Summer = May Through September) Min 98 Min 02 Min 99 Min 03 Min 00 Min WQ Standard Min 01 Min 04 8 7 DO mg/l 6 5 4 3 2 Buckhorn Dam L&D #3 L&D #1 L&D #2 1 0 168 151 141 116 100 96 91 88 River Mile Figure 12 14 80 73 72 70 55 48 39 Two tributaries frequently exhibit low DO conditions. Lick Creek and Buies Creek were often below the instantaneous DO standard of 4 mg/l (Figure 13). The Buies Creek station was moved in July 2003 due to problems obtaining a representative sample. The new station has recorded no violations of the water quality standard for DO. There are no known point source discharges upstream of these sample stations, therefore the low DO levels are the result of non-point sources or natural conditions. Neills Creek, Rockfish Creek, and Turnbull Creek also exhibited some low DO conditions. Percent DO Exceedance for Tributaries 99 - 04 Percent Exceedance 20% 18% 18% 15% Percent Exceedance 16% 14% 12% 10% 8% 6% 4% 3% 2% 2% 0% 0% 0% 0% 0% 0% 2% 0% 0% 0% 0% 0% 0% Lo Ro R w iv ck er er fis Li h t tle C re Ri ek ve R oc -V r kf a ss is h R Cr oa ee R d oc k -S kf is R h 14 C 32 re ek -H w y 87 C ro ss C re Ha ek rr is on Cr Tu ee k rn bu ll Lo C re w ek er R oc Li kf ttl is e h R C iv re er ek -U S 40 1 B ui es Cr ee k U pp er Li ttl e C re ek re ek C B ui es Cr ee k A ve nt s C re ek Li ck ei lls N th Ke nn e B uc kh or n C re ek C re ek 0% Station Figure 13 Overall ratings for dissolved Oxygen for the 99 – 04 period are shown in Figure 14, 15, and 16. The drought of 2002 is clearly reflected in the data with a greater percentage of stations rated as Poor/Fair in the Upper Middle and Fair in the Lower Middle. MCFRBA DO Ratings for Upper Middle CFR % Good % Fair % Poor 100% 90% 80% 70% 60% 50% 40% 100% 100% DO 2003 DO 2004 91% 90% 82% 80% 30% 20% 10% 0% DO 1999 DO 2000 DO 2001 Figure 14 15 DO 2002 MCFRBA DO Ratings for Central Middle CFR % Good % Fair % Poor 100% 90% 80% 70% 60% 50% 100% 100% 100% 100% 100% 83% 40% 30% 20% 10% 0% DO 1999 DO 2000 DO 2001 DO 2002 DO 2003 DO 2004 Figure 15 MCFRBA DO Ratings for Lower Middle % Good % Fair % Poor 100% 90% 80% 70% 60% 50% 100% 100% 100% 100% 100% DO 2003 DO 2004 40% 64% 30% 20% 10% 0% DO 1999 DO 2000 DO 2001 DO 2002 Figure 16 III.A.3.2 Nutrients In the mainstem, nitrogen parameters and total phosphorus concentrations increase below the Wastewater Treatment Plant discharges. Total Nitrogen and Total Phosphorus concentrations show a trend to increase in a downstream direction (see Figures 17 & 18). 16 Average Total Nitrogen vs River Mile - 1998 Thorugh 2004 7 Year Average Linear (7 Year Average) 1.8 L&D 3 1.6 1.4 TN - mg/l 1.2 1.0 Buckhorn Dam Cross Creek WRF 0.8 0.6 Rockfish Creek WRF L&D 1 L&D 2 Smithfield Packing WRF 0.4 y = 0.0116x + 1.2874 R2 = 0.2572 0.2 0.0 168 151 141 116 100 96 91 88 80 73 72 70 55 48 39 River Mile Figure 17 Average Total Phosphorus vs River Mile - 1998 Thorugh 2004 7 Year Average Linear (7 Year Average) 0.3 0.3 L&D 3 TN - mg/l 0.2 L&D 2 L&D 1 0.2 0.1 Smithfield Packing WRF Buckhorn Dam Cross Creek WRF 0.1 Rockfish Creek WRF y = 0.0069x + 0.1474 R2 = 0.5515 0.0 168 151 141 116 100 96 91 88 80 73 72 70 55 48 39 River Mile Figure 18 A detailed watershed analysis is needed to determine the relative contributions of nutrient sources. 1The nutrient data suggests that the Total Nitrogen to Total Phosphorus ratio (TN:TP) is widely variable from year to year (Figure 19). Investigations conducted by Dr. Steve Whalen at UNC Chapel Hill demonstrate that the system is neither limited by TN or TP, but rather limited by light penetration and detention time. A trend analysis of Chlorophyll a verses turbidity and flow seems to verify these findings. Figure 20 shows a strong relationship between flow, turbidity, and Chlorophyll a levels. 1 TN:TP Ratio calculated using the Redfield Ratio, which was developed by measuring C:H:O:N:P in a sample of algae. The N:P ratio was about 7.0 –7.5:1 (weight). Redfield assumed that if the concentration of the nutrient present in the environment was at that ratio, the supply was balanced to the demand. It should be noted that this is just an indicator of nutrient conditions and not a firm law. 17 Average TN:TP vs River Mile - 1999 Through 2004 TN:TP Balance Average 01 Average 04 Average 02 Average 99 Average 03 Average 00 20 20 18 18 16 16 Phosphorus Limited 14 14 12 12 10 10 8 8 6 6 4 4 Nitrogen Limited 2 2 0 0 168 151 141 116 100 96 91 88 80 73 72 70 55 48 39 River Mile Figure 19 (Not Discharge Weighted) Average Summer Cla Verses Turbidity and Flow - Station #14 CLa Turbidity Flow 70 4,000 60 3,500 3,000 50 2,000 30 1,500 20 1,000 10 500 0 0 1998 1999 2000 2001 Figure 20 18 2002 2003 2004 CFS mg/L 2,500 40 Figure 21 shows this trend in more detail. This graph demonstrates the relationship between flow, turbidity, and Chlorophyll a at station 14 (above L&D #3) for the summer months of 2000, 2001, 2002, 2003, and 2004. The chart shows that as river flow increases, the Chlorophyll a levels decrease. Conversely, as river flow decreases Chlorophyll a levels increase. Summer Cla Verses Turbidity & Flow - Station #14 CL a Turbidity Flow 100 30,000 90 25,000 80 70 20,000 50 15,000 CFS mg/L 60 40 10,000 30 20 5,000 10 0 6/ 22 7/ /00 13 8/ /00 30 9/ /00 28 1 0 /0 /2 0 6 4 / /0 0 19 5/ /01 10 /0 6/ 1 7/ 7/ 01 18 8/ /01 13 9/ /01 26 5/ /01 15 6/ /02 11 /0 7/ 2 3/ 8/ 02 26 9/ /02 16 5/ /02 28 6/ /03 19 6/ /03 26 7/ /03 18 8/ /03 25 5/ /03 24 7/ /04 27 /0 8/ 4 4/ 0 9/ 4 10 3/0 /1 4 1 1 1 /0 4 /8 /0 4 0 Figure 21 When Tn and TP are added to the graph there is no strong relationship between nutrient load and Chlorophyll a levels (Figure 22). This is particularly clear in the instances where TP and TN loads rise with the flow in the river and there is a corresponding decrease in Chlorophyll a levels. Higher flows mean more input into the river from the watershed. It also means higher turbidity, which equals lower productivity, which equals a lower demand for nutrients. Summer Cla Verses TN Lbs, TP Lbs, & Flow - Station #14 CL a Flow TN Lbs TP Lbs 25 30000 25000 20 20000 mg/L 15 15000 10 10000 5 5000 0 0 5/24/04 7/27/04 8/4/04 9/3/04 Figure 22 19 10/11/04 11/8/04 Figures 23 through 28 show the TN and TP loads in the main stem of the Cape Fear River for the July 1998 through December 2004 time period. Station 4 (Storet #B6370000), which is located on the CFR at US401, shows an upward trend in TN and TP loading (Figures 23 & 24). However, this trend appears to be heavily influenced by the January to July ’03 time period, which corresponds to near record rainfall and stream flows. Station 4 - TN Pounds - July 1998 Through December 2004 TN Pounds 12 per. Mov. Avg. (TN Pounds) 80,000 70,000 60,000 Pounds 50,000 40,000 30,000 20,000 10,000 7/15/2004 10/15/2004 7/15/2004 10/15/2004 4/15/2004 1/15/2004 7/15/2003 10/15/2003 4/15/2003 1/15/2003 7/15/2002 10/15/2002 4/15/2002 1/15/2002 10/15/2001 7/15/2001 4/15/2001 1/15/2001 10/15/2000 7/15/2000 4/15/2000 1/15/2000 7/15/1999 10/15/1999 4/15/1999 1/15/1999 7/15/1998 10/15/1998 0 Figure 23 Station 4 - TP Pounds - July 1998 Through June 2004 TP Pounds 12 per. Mov. Avg. (TP Pounds) 11,000 10,000 9,000 8,000 6,000 5,000 4,000 3,000 2,000 1,000 Figure 24 20 4/15/2004 1/15/2004 7/15/2003 10/15/2003 4/15/2003 1/15/2003 10/15/2002 7/15/2002 4/15/2002 1/15/2002 10/15/2001 7/15/2001 4/15/2001 1/15/2001 10/15/2000 7/15/2000 4/15/2000 1/15/2000 7/15/1999 10/15/1999 4/15/1999 1/15/1999 10/15/1998 0 7/15/1998 Pounds 7,000 Station 14 (Storet #B7300000), which is located above Lock & Dam #3, shows the TN loading is about the same as previous years after a spike during 2001. TP shows a downward trend through 2001 and basically a flat line since then (Figures 25 & 26). Station 14 - TN Pounds - July 1998 Through December 2004 TN Pounds 12 per. Mov. Avg. (TN Pounds) 70,000 60,000 Pounds 50,000 40,000 30,000 20,000 10,000 1/13/2004 4/13/2004 7/13/2004 10/13/2004 1/13/2004 4/13/2004 7/13/2004 10/13/2004 7/13/2003 10/13/2003 4/13/2003 1/13/2003 7/13/2002 10/13/2002 4/13/2002 1/13/2002 7/13/2001 10/13/2001 4/13/2001 1/13/2001 7/13/2000 10/13/2000 4/13/2000 1/13/2000 7/13/1999 10/13/1999 4/13/1999 1/13/1999 7/13/1998 10/13/1998 0 Figure 25 Station 14 - TP Pounds - July 1998 Through December 2004 TP Pounds 12 per. Mov. Avg. (TP Pounds) 11,000 10,000 9,000 8,000 6,000 5,000 4,000 3,000 2,000 1,000 Figure 26 21 7/13/2003 10/13/2003 4/13/2003 1/13/2003 7/13/2002 10/13/2002 4/13/2002 1/13/2002 7/13/2001 10/13/2001 4/13/2001 1/13/2001 7/13/2000 10/13/2000 4/13/2000 1/13/2000 7/13/1999 10/13/1999 4/13/1999 1/13/1999 7/13/1998 0 10/13/1998 Pounds 7,000 Station 25 (Storet #B8349000), which is located above Lock & Dam #1, shows that TN and TP loadings are about the same as previous years. Both parameters show an upward trend beginning in late 1999 and lasting until the fall of 2000. The trend is downward from that point until late 2003 (Figures 27 & 28). Station 25 - TN Pounds - July 1998 Through December 2004 TN Pounds 12 per. Mov. Avg. (TN Pounds) 100,000 90,000 80,000 Pounds 70,000 60,000 50,000 40,000 30,000 20,000 10,000 1/13/2004 4/13/2004 7/13/2004 10/13/2004 1/13/2004 4/13/2004 7/13/2004 10/13/2004 7/13/2003 10/13/2003 10/13/2003 4/13/2003 1/13/2003 7/13/2002 10/13/2002 4/13/2002 1/13/2002 10/13/2001 7/13/2001 4/13/2001 1/13/2001 10/13/2000 7/13/2000 4/13/2000 1/13/2000 7/13/1999 10/13/1999 4/13/1999 1/13/1999 7/13/1998 10/13/1998 0 Figure 27 Station 25 - TP Pounds - July 1998 Through December 2004 TP Pounds 12 per. Mov. Avg. (TP Pounds) 11,000 10,000 9,000 8,000 6,000 5,000 4,000 3,000 2,000 1,000 Figure 28 22 7/13/2003 4/13/2003 1/13/2003 10/13/2002 7/13/2002 4/13/2002 1/13/2002 10/13/2001 7/13/2001 4/13/2001 1/13/2001 10/13/2000 7/13/2000 4/13/2000 1/13/2000 10/13/1999 7/13/1999 4/13/1999 1/13/1999 7/13/1998 0 10/13/1998 Pounds 7,000 Water quality in the tributaries of the middle Cape Fear River is quite variable. Average concentrations of nitrogen forms for the summers of 1999, 2000, 2001, 2002, 2003, and 2004 are charted in Figure 29. 2.5 2.0 Ammonia 1.5 TKN Nitrate/Nitrite 1.0 0.5 K en A ve n ts C re e C re e k or n kh B uc Li c k C re ek ne th C re N ek ei lls B ui C re es B ek ui C es re ek C re at ek K ei th H U ill Li s ttl e R L L iv er Li Li ttl ttl e e R R R oc iv iv kf er er R is -M oc h kf C a nc re is h ek h. C -U re R ek oc S 40 kf -V is 1 as h s C R re R oc o e kf ad k is -S h R C 14 re ek 32 -H w y C 87 ro ss H C ar re ris ek on C Tu re rn ek bu ll C re ek 0.0 k Concentration mg/l Average Nitrogen Forms in Tribs in Summers - 1999, 2000, 2001, 2002, 2003, 2004 (Summer = April Through October) Tributary (TKN Includes Organic Forms of Nitrogen and Ammonium) Figure 29 Harrison Creek, Kenneth Creek, and Neills Creek have high levels of nitrogen. The Kenneth Creek station is downstream of a point source discharge. However, there are no point source discharges above the Harrison Creek and Neills Creek stations, indicating non-point contributions. Additionally, Harrison Creek, Turnbull Creek, Lower Little River, Rockfish Creek, and Buies Creek have a high TN:TP ratio (Figure 30). Average (1998 - 2004 TN:TP for Tributaries) TN:TP Ratio TN:TP Balance Phosphorus Limited Nitrogen Limited Li ck C B re uc ek kh or n C re ek A ve nt s C re K ek en ne th C re ek N ei lls B C ui re es ek B C ui re es ek C at re K ek ei th H ill U s pp G er C Li Lo ttl e w L R er ow iv Li er er ttl Li e ttl R e iv R er iv A er R M oc an kf ch is R h es oc C te re kf r ek is h -U C re S ek 40 R oc 1 -V kf as is s h R C oa re R d ek oc -S kf is R h 14 C 32 re ek -H w y 87 C ro ss C re H ek ar ris on C re Tu ek rn bu ll C re ek 18 16 14 12 10 8 6 4 2 0 Figure 30 (Not Discharge Weighted) 23 Chlorophyll a levels were the highest during the drought year of 2002 (Figure 31). Elevated chlorophyll a levels are usually associated with low flow warm temperature conditions in the river. MCFRBA Chla Ratings - All Stations % Good 100% 90% 0% 0% 25% % Fair % Poor 0% 25% 0% 0% 20% 20% 80% 80% Cla 2003 Cla 2004 80% 50% 70% 75% 60% 50% 40% 75% 75% 30% 50% 0% 20% 25% 10% 0% Cla 1999 Cla 2000 Cla 2001 Cla 2002 Figure 31 III.A.3.3 Fecal Coliform When using the annual geometric mean is greater than 200 and the 20% greater than 400 rule, 18 stations exceeded the water quality standard for fecal coliform in at least one sample year (Figure 32). The sample year runs from January 1st through December 31st of each year. Station ID B6160000 (1) B6200000 (2) B6320000 (3) B6370000 (4) B6252000 (26) B6130500 (C1) B6230000 (C2) B6480000 (C3) B6840000 (5) B7480000 (8) B7610000 (9) B7500000 (10) B7700000 (12) B8230000 (13) B7590000 (C4) B8305000 (17) B7679300 (28) B8315000 (C5) Location CFR at NC42 Buckhorn Creek at HWY42 Kenneth Creek at SR1441 CFR at US401 Neills Creek at US401 Lick Creek at SR1500 Avents Creek at SR1418 Buies Creek at US421 CFR at NC217 CFR at Hoffer Intake CFR at Riverside Landing CFR at I95 Rockfish Creek at SR1432 Rockfish Creek at HW87 S Cross Creek at US301 CFR at SR1316 Rockfish Creek at US401 Harrison Creek at NC53 Figure 32 24 ‘99 Yes Yes Exceedance of Fecal Std. ‘00 ‘01 ‘02 ‘03 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes ‘04 Yes Yes Yes Two stations (Rockfish Creek at SR1432 and Cross Creek at US301) have exhibited fecal coliform problems every year of the sampling program. Additionally, B7500000 (CFR at I95) has exhibited fecal coliform problems in five of the six sampling years. On the mainstem of the CFR fecal coliform counts are typically higher in the upper part of the Middle Cape Fear River basin. MCFRBA Fecal Ratings for Upper Middle 100% 0% 0% 0% 90% 80% 46% 55% 70% 70% 60% 50% 100% 100% % Poor 100% % Good 40% 30% 54% 45% 20% 30% 10% 0% FC 1999 FC 2000 FC 2001 FC 2002 FC 2003 FC 2004 Figure 33 MCFRBA Fecal Ratings for Central Middle CFR % Good % Poor 100% 90% 29% 80% 43% 50% 70% 71% 60% 71% 88% 50% 40% 71% 30% 57% 50% 20% 29% 29% 10% 13% 0% FC 1999 FC 2000 FC 2001 Figure 34 25 FC 2002 FC 2003 FC 2004 MCFRBA Fecal Ratings for Lower Middle CFR 100% 0% 0% 7% 7% 7% 93% 93% FC 2002 FC 2003 0% 90% 80% 70% 60% 50% 100% 100% 93% % Poor 100% % Good 40% 30% 20% 10% 0% FC 1999 FC 2000 FC 2001 FC 2004 Figure 35 Figure 36 is a geometric mean of all the fecal coliform data collected at each mainstem station from July 1998 through December 2003. On average, fecal coliform counts fall dramatically below Lock & Dam #3. Fecal Coliform Geometric Mean vs Turbidity July 1998 through December 2004 Colonies per 100 ml Turbidity 20 180 18 160 16 140 14 120 12 100 10 80 8 60 6 40 4 20 Buckhorn Dam 0 168 151 Turbidity - NTUs Fecal Coliform 200 2 L&D 3 141 116 100 96 L&D 2 91 88 80 73 72 70 L&D 1 55 48 0 39 River Mile Figure 36 The drainage area above Lock & Dam #3 is much larger, accounting for about 70% percent of the overland flow that enters the middle section of the CFR. Below the Rockfish Creek WRF the drainage basin narrows and there is relatively little tributary input that reaches the mainstem. In addition to a proportionally larger drainage area, most of the urban development is located in the upper portion of the middle CFR, which could account for the higher fecal counts. 26 III.A.3.4 pH Several stations have exhibited low pH since the inception of the monitoring program (Figure 37). The low pH readings do not appear to be related to point source discharges and are probably related to natural conditions such as swamp drainage. Station Lower Little River at NC 210 Lower Little River at SR 1451 RF Creek at Vass Road RF Creek at US 401 RF Creek at Golf Course Road RF Creek at Hwy 87 Harrison Creek at Burney Road Turnbull Creek at NC 53 III.A.3.5 1999 5.91 na 4.36 na 5.23 6.07 4.22 2000 6.28 na 5.11 na 5.89 6.53 5.00 4.25 Figure 37 2001 6.71 na 5.34 na 6.06 6.53 5.38 4.35 2002 6.71 na 5.38 na 5.93 6.3 4.86 4.29 2003 5.9 5.52 4.83 4.52 5.39 5.99 4.04 3.97 2004 6.11 5.81 na 3.82 5.23 5.74 4.34 3.97 ’99 – ‘04 6.21 5.81 4.97 3.82 5.61 6.19 4.71 4.15 AMBIENT DATA SUMMARY The data collected from July 1998 through December 2004 indicates chlorophyll a, dissolved oxygen, and fecal coliform are the most problematic parameters of concern in the middle Cape Fear River basin. Above Buckhorn Dam and Lock and Dam #3 the dissolved oxygen levels appear to be heavily influenced by algal productivity, which is validated by the elevated Chlorophyll a levels and episodes of dissolved oxygen super saturation. Low flow conditions tend to create a backwater effect behind the dams causing the system to respond like a series of lakes. This allows algae sufficient time to reproduce and utilize the abundant nutrients in the system and as a result the DO levels fluctuate significantly. Algal productivity does not appear to have the same effect in the lower section of the river from Lock & Dam #2 to Lock and Dam #1. In fact, during the last five years the MCFRBA has not recorded a single Chlorophyll a value that exceeded the water quality standard of 40 micrograms per liter at station 25, which is just above Lock & Dam #1 at Riegelwood. The low DO levels in this part of the river are likely the result of BOD load and swamp drainage combined with a very low re-aeration rate. A TMDL is currently being developed for dissolved oxygen in the Cape Fear River estuary, which begins immediately below L&D #1. Depending on the results of the modeling for this TMDL this issue could become a larger issue in the future. Cross Creek has the highest fecal coliform counts of all of the stations in the Middle Cape Fear River Basin. This stream runs through downtown Fayetteville. The annual geometric mean for 1999, 2000, 2001, 2002, 2003, and 2004 was 406, 266, 184, 536, 654, and 236 respectively. The Middle Cape Fear River Basin Association is searching for ways to try to identify the fecal source. An infrared aerial survey was conducted in early March of 2004, all potential hot spots identified in the infrared survey were visited in the fall of 2004, and a two-month intensive sampling regime was conducted in January to March 2005. Results from this sampling are still being evaluated, however one of the 27 tributaries, which drains the western side of the Cumberland County Landfill exhibited significantly higher fecal counts than the other sampling stations. Metals don’t seem to be an issue of concern anywhere in the middle Cape Fear River. For lead (Pb), chromium (Cr), cadmium (Cd), mercury (Hg), and arsenic (As), there were no detected exceedances of the Water Quality Standard during the July 98 through December 04 time period. Nickel (Ni) exceeded the standard in 6% of the samples at stations #5 and 25, Copper (Cu), zinc (Zn), iron (Fe), and aluminum (Al) (EPA criterion) exceeded the Action Level on a fairly regular basis, however these metals are common constituents for this geologic region and it is not unusual to see these levels in the water column. It should also be noted that the State of North Carolina has not adopted an action level or water quality standard for aluminum. A summary of the data collected using clean methodologies is included in Section III.B.3 of this report. A summary of the frequency of exceedance of the Water Quality Standards/Action levels is provided in Figure 38. 28 4.0 S tan d ard s fo r W S IV C A: 6-9 6-9 6-9 6-9 6-9 6-9 Ph SU 25 25 25 25 25 25 Pb u g/l 25 25 25 25 88 88 Ni ug /l 50 50 50 50 50 50 Cr ug /l 0 to 10 % Exceedance 50 50 50 50 50 50 Turbid ity N TU 2 2 2 2 2 2 Cd ug /l 9% 3% 0% 0% 0% 0% 0% 6% 0% 0% 50 50 50 50 50 50 10 10 10 10 N 02/N 03 m g/l 40 40 40 40 40 40 Cl a ug /l 1000 1000 1000 1000 1000 1000 F e (AL ) u g/l 200 200 200 200 Mn u g /l 50 50 50 50 50 50 As u g /l F ecal C L a Fe M n No 13% No No Y es 60% 0% No Y es No Y es No No 38% 6% No No No Y es Y es 32% No Y es No Y es No 23% 30% No 29% No No 0% No No No No 8% 18% No No No No 0% 31% 2% No No No No Greater Than 25 % Exceedance 200/400 200/400 200/400 200/400 200/400 200/400 * F ecal C o lifo rm C o l/100 m l 9% 5% 0% 0% 4% 11% 0% 0% 0% 0% 0% 0% 0% 0% 11 to 25 % Exceedance 7 7 7 7 7 7 Z n (AL) u g/l Zn 0% 0% 0% 0% 11% 19% W Q S tand ards/Action L evels C u (AL ) ug /l Cu 7% Cd 0% 6% 0% 0% 19% Cr 0% Ni 0% 0% 0% 0% 40% Pb Hg 0.012 0.012 0.012 0.012 0.012 0.012 Hg u g /l 87.000 87.000 87.000 87.000 87.000 87.000 ** Al u g /l 99% 0% 98% 0% 100% 0% 98% 0% 99% 0% 94% 0% 100% 0% Al * For data comparison for fecal coliform an annual geometric mean is compared to the 200 col/100ml or 20 % of samples greater than 400 col/100 ml ** Aluminum is an EPA Standard. The State of NC has not adopted a Standard or Action Level for Aluminum 29 4.0 4.0 4.0 S tan dards o r W S IV : S tan dard s fo r W S V : 4.0 S tand ard s fo r W S IV H Q W : 4.0 S tan dard s fo r C lass B : DO m g /l Lo catio n D escriptio n DO pH T u rb id ity B rid g e at N C 42 1% 8% 6% H ig h w ay 42 G ag in g Station 0% 1% 0% S R 1441 C h alybate Sp ring s R d 0% 1% 4% U S 401 L illing to n 1% 1% 10% U S 401 2% 4% 0% SR 1500, Lo w er R iver R o ad 15% 3% 9% SR 1418, R iver R o ad 0% 1% 1% U S 421 18% 9% 4% K eith H ills G olf C o urse 0% 6% 0% N C 217 at Erw in 1% 1% 7% SR 2021 T itan R o b ers R o ad 0% 15% 0% N C 210 0% 31% 1% Abo ve H o ffer W T P Intake 2% 2% 5% R iversid e L an ding 0% 1% 4% I-95 2% 5% 6% 1300 V ass R o ad 0% 89% 0% 1432 G o lf C o u rse R o ad 3% 70% 0% H w y. 87 So u th 0% 30% 1% U S 301 B u sin ess 0% 4% 3% D u Po nt W ater Intake 2% 2% 1% B elo w L& D 3 N ear B oat R am p 0% 1% 0% Po w er L ines, N o R o ad 0% 1% 0% SR 1316 T ar H eel 3% 1% 1% R iver M arker 80, B elo w H arriso n C reek 2% 2% 0% D ow n strem o f th e M o u th o f Ellis C reek 7% 3% 0% U S 701 E lizab eth tow n 4% 2% 0% Abo ve L& D 2 2% 1% 1% R iv er M arker 70, N o R o ad 0% 1% 0% R iv er M arker 55, N o R o ad 5% 3% 1% SR 1730, Elw el F erry R o ad 3% 2% 3% Abo ve L& D 1 3% 5% 3% SR 1451 0% 18% 0% U S 401 B y-Pass n ear R aefo rd 0% 33% 0% S R 1320, B u rn ey R o ad 0% 92% 0% N C 53 2% 100% 0% S tan dard s fo r C lass C : W ater B o dy CFR B u ckh o rn C reek K enn eth C reek CFR N eills C reek L ick C reek Aven ts C reek B u ies C reek B u ies C reek CFR U pp er L ittle R iver Lo w er L ittle R iver CFR CFR CFR R ockfish C reek R ockfish C reek R ockfish C reek C ro ss C reek CFR CFR CFR CFR CFR CFR CFR CFR CFR CFR CFR CFR Lo w er L ittle R iver R ockfish C reek H arriso n C reek T u rn b ull C reek Figure 38 - Frequency of Exceedance of Water Quality Standard or Action Level For all data collected from inception of the program, i.e., July 1998 through December 31, 2004 0% 0% 0% 0% 0% 0% 0% As III.B. RESEARCH & SPECIAL PROJECTS III.B.1. WATER QUALITY EVALUATION BEHIND LOCKS & DAMS In 1999, the MCFRBA contracted for a study of the influence of the Lock and Dam system on water quality in the Cape Fear River. Steve Whalen, UNCCH, and PV Sundareshwar, Duke University conducted the research. The overall goal of the project was to assess the impact that each lock and dam has on downstream river water quality, in particular the effect on dissolved oxygen levels and productivity of algae. The full reports of the projects are available upon request. III.B.2 NUTRIENT REDUCTION EVALUATION For the past three years Steve Whalen and Lindsay Dubbs have been conducting experiments in laboratory mesocosms to empirically evaluate the impact of nutrient reduction on water quality in the Middle Cape Fear River. They have evaluated the effect of reduced nutrients on phytoplankton biomass (chlorophyll a), primary production (14C uptake) and community composition. The final report has yet to be published but a summary of the findings is available upon request. III.B.3 CLEAN METALS The Clean Metals Study was initiated due to concerns about accuracy of some analytical methodologies at very low detection levels, which are typically found in streams, lakes, and rivers in our geographical area. The parameters of concern included Mercury, Cadmium, Chromium, Copper, Nickel, Lead, and Zinc. The results of the study showed that significant differences in conclusions can be drawn when analytical methods are employed where the detection levels are below the level of concern. In this study, the clean results generally indicated lower metals levels and less variability in sample results. A copy of the full report is available upon request. Additionally, the MCFRBA began using clean metals methodologies on all samples collected as part of the ambient monitoring program in July 2003. In Figure 39 is a summary of the data collected during 2004 using the clean methodologies. There were no samples that exceeded any Water Quality Standards. Notably, all of the Mercury samples were well below the standard of 0.012 mg/l. Copper, Zinc, Aluminum, and Iron exceeded the Action Level occasionally, however, it is not unusual to see these metals at these levels in this geographic area of North Carolina. The MCFRBA initiated a rigid QA/QC protocol for the clean metals analysis beginning in July 2003. Unfortunately, Pace Laboratories was unable to meet the requirements established by this protocol. As a result, the protocol was not fully implemented until the sampling program was taken over by Meritech in July 2004. QA/QC data is tabled in Figures 40, 41, and 42. 30 ST AT IO N 4 4 4 4 4 4 5 5 5 5 5 5 10 10 10 10 10 10 14 14 14 14 14 25 25 25 25 25 D AT E 1/20/2004 3/16/2004 5/5/2004 7/15/2004 9/21/2004 11/16/2004 1/20/2004 3/16/2004 5/5/2004 7/22/2004 9/17/2004 11/18/2004 1/19/2004 3/12/2004 5/6/2004 7/27/2004 9/3/2004 11/8/2004 3/8/2004 5/10/2004 7/27/2004 9/3/2004 11/8/2004 3/8/2004 5/10/2004 7/29/2004 9/20/2004 11/10/2004 M axim um M inim um W Q Std. O r AL # of S am ples # Below D T # Above Std. O r AL u g/l 2.5 1.2 1.5 0.52 1.4 1 2.5 0.7 1.6 0.25 2.5 1 0.5 0.9 2.2 0.25 4.3 0.8 0.8 0.25 0.25 0.6 0.9 0.7 1 0.65 2.4 0.8 4.3 0.25 25 28 6 0 3 0.25 25 28 15 0 ug /l 2.5 2.5 2.5 1.6 1.8 3 2.5 2.5 2.5 1.3 2.2 0.25 2.5 2.5 2.5 1.5 1.4 0.25 2.5 2.5 1.2 1.8 2 2.5 2.5 1.4 1.4 2 u g /l 5 5 5 2.5 2.5 2.5 5 5 5 2.5 2.5 2.5 5 5 5 2.5 2.5 2.5 5 5 2.5 2.5 2.5 5 5 2.5 2.5 2.5 5 2.5 50 28 28 0 u g/l 0.5 0.1 0.25 0.25 0.25 0.25 0.5 0.1 0.25 0.25 0.25 0.25 0.5 0.1 0.25 0.25 0.25 0.25 0.1 0.25 0.25 0.25 0.25 0.1 0.25 0.25 0.5 0.25 31 0.5 0.1 2 28 27 0 u g /l u g /l 8.3 23 12.4 5 7.8 5 7 11 12 21 4 21 1 5 3.5 5 6.4 5 4 5 4 24 3 17 2.9 5 7.8 5 6.1 70 5 11 4 13 1 5 3.3 5 3.7 5 4 11 4 13 1 5 3.5 5 4.7 5 1 5 5 24 6 21 12.4 70 1 5 7 50 28 28 1 15 5 1 u g /l 110 188 1300 1200 1400 1110 120 94 1230 395 1210 879 140 334 378 276 988 261 291 344 279 885 255 258 538 307 631 281 1400 94 87 28 0 28 u g /l 640 521 2400 1080 1890 1740 720 486 2750 558 1750 1540 690 855 1410 491 1780 699 807 852 498 1590 807 698 1350 692 1650 838 2750 486 1000 28 0 12 u g /l 60 166 98 166 195 154 40 5 138 121 101 122 40 49 112 72 164 65 69 56 62 106 102 49 101 49 87 127 195 5 200 28 0 0 5 2.5 50 28 28 0 u g /l 2.5 2.5 2.5 5 5 5 2.5 2.5 2.5 5 5 5 2.5 2.5 2.5 5 5 5 2.5 2.5 5 5 5 2.5 2.5 5 5 5 u g/l 0.002 0.003 0.012 0.003 0.005 0.0058 0.002 0.003 0.01 0.002 0.005 0.005 0.002 0.004 0.01 0.001 0.005 0.0018 0.003 0.003 0.001 0.004 0.00184 0.004 0.006 0.002 0.004 0.00644 0.012 0.001 0.012 28 0 0 L EAD N IC K EL C H R O M IU M C AD M IU M C O PP ER Z IN C Alu m in ium Iro n M an gan ese Arsen ic M ercu ry Figure 39 Figure 40 Detection Limit (ugl) Conc. (ug/l) B6840000 Al 50 395 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 4 Fe 25 558 Hg 0.001 0.002 Ni 0.5 1.7 Pb 0.5 <0.5 Zn 10 <10 Mn 5 121 B8290000 Al 50 279 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 4 Fe 25 498 Hg 0.001 0.001 Ni 0.5 1.2 Pb 0.5 <0.5 Zn 10 11 Mn 5 62 B83490000 Al 50 307 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 4 Fe 25 692 Hg 0.001 0.002 Ni 0.5 1.4 Pb 0.5 0.6 Zn 10 < 10 Mn 5 49 B6370000 Al 50 1200 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 7 Fe 25 1080 Hg 0.001 0.002 Ni 0.5 1.7 Pb 0.5 0.6 Zn 10 11 Mn 5 166 B750000 Al 50 276 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 5 Fe 25 491 Hg 0.001 0.001 Ni 0.5 1.5 Pb 0.5 < 0.5 Zn 10 11 Mn 5 72 Parameters in bold face subcontracted. * No data for 1631 duplicate Duplicate (ug/l) Field Method Blank Blank (ug/l) (ug/l) Date Sampled: 7/21/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 7/27/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 7/29/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 7/14/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 7/27/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 392 < 10 < 0.5 <5 4 551 * 1.7 < 0.5 < 10 121 281 < 10 < 0.5 <5 5 471 * 1.4 0.6 11 62 N/A N/A N/A N/A N/A N/A * N/A N/A N/A N/A 1180 < 10 < 0.5 <5 8 1100 * 1.6 0.5 12 167 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 32 Blank Spike % Recovery Matrix Matrix Spike Spike Dup 105 101 95 96 100 103 112 84 94 104 105 113 106 99 102 104 104 83 85 98 106 107 114 104 103 102 106 105 75 91 101 104 109 105 101 95 96 100 103 112 84 94 104 105 113 106 99 102 104 104 83 85 98 106 107 114 104 103 102 106 105 75 91 101 104 109 105 101 95 96 100 103 112 84 94 104 105 113 106 99 102 104 104 124 85 98 106 107 114 104 103 102 106 105 89 91 101 104 109 105 101 95 96 100 103 112 84 94 104 105 113 106 99 102 104 104 83 85 98 106 107 114 104 103 102 106 105 75 91 101 104 109 105 101 95 96 100 103 112 84 94 104 105 113 106 99 102 104 104 83 85 98 106 107 114 104 103 102 106 105 75 91 101 104 109 Figure 41 Detection Limit (ugl) Conc. (ug/l) B6840000 Al 50 1210 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 4 Fe 25 1750 Hg 0.001 0.005 Ni 0.5 1.2 Pb 0.5 4 Zn 10 24 Mn 5 101 B8290000 Al 50 885 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 4 Fe 25 1590 Hg 0.001 0.0004 Ni 0.5 1.8 Pb 0.5 1.3 Zn 10 13 Mn 5 106 B83490000 Al 50 631 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 5 Fe 25 1650 0.001 0.004 Hg Ni 0.5 1.4 Pb 0.5 2.4 Zn 10 24 Mn 5 87 B6370000 Al 50 1400 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 12 Fe 25 1890 0.001 0.005 Hg Ni 0.5 1.8 Pb 0.5 1.5 Zn 10 21 Mn 5 195 B750000 Al 50 988 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 4 Fe 25 1780 Hg 0.001 0.005 Ni 0.5 1.6 Pb 0.5 7 Zn 10 13 Mn 5 164 Parameters in bold face subcontracted. * No data for 1631 duplicate Duplicate (ug/l) Field Method Blank Blank (ug/l) (ug/l) Date Sampled: 9/17/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 9/03/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 0.001 < 0.005 <5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 9/20/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 9/21/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 9/03/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 1270 < 10 < 0.5 <5 4 1810 * 3.3 1 23 104 869 < 10 < 0.5 <5 4 1570 * 1.5 1.3 14 107 N/A N/A N/A N/A N/A N/A * N/A N/A N/A N/A 1430 < 10 < 0.5 <5 13 1920 * 1.8 1.4 20 196 964 <10 0.6 <5 4 1720 * 1.3 1.6 12 161 33 Blank Spike % Recovery Matrix Matrix Spike Spike Dup 110 108 104 114 106 105 105 109 106 107 106 124 102 101 116 108 119 81 109 99 109 114 119 106 100 119 111 11 83 117 101 108 104 109 104 104 106 103 105 102 109 106 101 106 120 104 101 108 108 108 102 109 99 110 110 120 108 100 108 109 109 87 117 101 116 111 110 108 104 114 106 105 105 109 106 107 106 124 102 101 116 108 119 81 109 99 109 114 119 106 100 119 111 11 83 117 101 108 104 110 108 104 114 106 105 105 109 106 107 106 124 102 101 116 108 119 81 109 99 109 114 119 106 100 119 111 11 83 117 101 108 104 109 104 104 106 103 105 102 109 106 101 106 120 104 101 108 108 108 102 109 99 110 110 120 108 100 108 109 109 87 117 101 116 111 Figure 42 Detection Limit (ugl) Conc. (ug/l) B6840000 Al 50 879 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 3 Fe 25 1540 Hg 0.001 0.005 Ni 0.5 2 Pb 0.5 0.9 Zn 10 17 Mn 5 122 B8290000 Al 50 255 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 <2 Fe 25 807 Hg 0.001 0.002 Ni 0.5 2 Pb 0.5 5 Zn 10 < 10 Mn 5 102 B83490000 Al 50 261 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 6 Fe 25 838 Hg 0.001 0.006 Ni 0.5 1 Pb 0.5 0.5 Zn 10 21 Mn 5 127 B6370000 Al 50 1110 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 4 Fe 25 1740 Hg 0.001 0.006 Ni 0.5 2 Pb 0.5 1 Zn 10 21 Mn 5 154 B750000 Al 50 261 As 10 <10 Cd 0.5 <0.5 Cr 5 <5 Cu 2 <2 Fe 25 699 Hg 0.001 0.002 Ni 0.5 0.6 Pb 0.5 <0.5 Zn 10 <10 Mn 5 65 Parameters in bold face subcontracted. * No data for 1631 duplicate Duplicate (ug/l) Field Method Blank Blank (ug/l) (ug/l) Date Sampled: 11/18/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 11/08/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 0.001 < 0.005 <5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 11/10/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 0.001 < 0.0005 1 < 0.5 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 11/16/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 < 0.5 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 Date Sampled: 11/08/04 < 50 < 50 < 10 < 10 < 0.5 < 0.5 <5 <5 <2 <2 < 25 < 25 < 0.001 < 0.0005 0.6 < 0.5 < 0.5 < 0.5 < 10 < 10 <5 <5 875 < 10 < 0.5 <5 2 1530 * 2 1 18 121 NA NA NA NA NA NA NA NA NA NA NA 309 <10 <0.5 <5 5 883 * 2 <0.5 15 133 1110 < 10 < 0.5 <5 3 1750 * 3 1 23 158 266 <10 0.6 <5 <2 720 * 2 0.5 <10 65 34 Blank Spike % Recovery Matrix Matrix Spike Spike Dup 107 106 87 97 95 106 100 88 86 100 103 116 104 89 97 103 104 79 95 96 100 101 115 106 88 100 100 105 81 103 96 100 100 107 102 87 102 99 108 103 88 86 105 107 113 105 89 102 89 104 97 95 96 108 103 121 112 88 107 102 111 98 103 96 108 111 107 106 87 97 95 106 110 88 86 100 103 116 104 89 97 103 104 95 95 96 100 101 115 106 88 100 100 105 92 103 96 100 100 107 106 87 97 95 106 96 88 86 100 103 116 104 89 97 103 104 94 95 96 100 101 115 106 88 100 100 105 101 103 96 100 100 107 102 87 102 99 108 103 88 86 105 107 113 105 89 102 89 104 97 95 96 108 103 121 112 88 107 102 111 98 103 96 108 111 III B.4 CONTINUOUS MONITORING STATION & L&D 3 In June of 2000 the Middle Cape Fear River Basin Association, in cooperation with the US Geological Survey (USGS), installed a continuous monitoring station above Lock & Dam #3 on the Cape Fear River. This station was in operation through December 2003 and collected continuous real-time water quality data for dissolved oxygen, temperature, pH, and Conductivity. The data is available upon request. III.B.5 LITTLE CROSS CREEK BMP STUDY The Middle Cape Fear River Basin Association, in cooperation with the Public Works Commission (PWC) of the City of Fayetteville, is working to install retrofit BMPs in the Little Cross Creek watershed. Previous water quality investigations have raised concerns regarding inputs of suspended sediment, phosphorus, and bacteria from non-point sources in the watershed. The first phase of this effort resulted in a list of watershed improvement projectsA total of 98 potential projects were identified. The estimated capital cost for these projects is approximately $16 million and these projects would reduce estimated loads of suspended sediment from the watershed by about 50%. However, the top 35 projects will achieve approximately 35% of the sediment reduction for a capital cost of about $7.5 million. The Public Works Commission has submitted a grant application to the Clean Water Management Trust Fund to implement five of the BMPs identified in the study. The CWMTF has approved $766,000 in funds for the design, engineering, and property acquisition for these five projects. PWC has entered into an agreement with CH2M Hill for engineering services to design the projects. Design has begun on the project and acquisition of property is underway. Additional information is available upon request. IV. MISCELLANEOUS IV.A QA/QC ISSUES & MONITORING EXCEPTION REPORT Pace Analytical Services, Inc (formerly SIMALABS International) performed sampling and analytical requirements of the Memorandum of Agreement (MOA) from January through June 2004. Due to missed sampling events and inability to meet detection levels for certain metals Pace was relieved of their contractual commitments and MCFRBA hired Meritech Laboratories to conduct the sampling and analysis as specified in the MOA between the MCFRBA and the State of North Carolina’s Division of Water Quality. All known QA/QC issues are denoted in the remarks section of the monthly spreadsheets that have been submitted to NCDWQ. The following significant exceptions occurred: January 2004 Data was not collected at B8290000, B82302000, B8305000, B8306000, B8320000, B8339000, B8340130, B8340650, B8348000, B8349000, B8315000, and B8340100 due to extreme weather conditions and high water levels. Contractor was also unable to meet 35 the minimum detection levels specified in the clean metals section of the MOA for Cd, Cr, Pb, and Zn. February 2004 Data was not collected at B8290000, B82302000, B8305000, B8306000, B8320000, B8339000, B8340130, B8340650, B8348000, B8349000, B8315000, and B8340100 due to failure of contractor to properly schedule sampling events. Contractor had problems due to weather but it was to late in the month to re-schedule the sampling event. March 2004 Contractor was unable to meet the minimum detection levels specified in the clean metals section of the MOA for Cd, Cr, and Zn. May 2004 Contractor was unable to meet the minimum detection levels specified in the clean metals section of the MOA for Cd, Cr, and Zn. Also, the contractor did not collect temperature, ph, and dissolved oxygen at several stations. This missing info is denoted in the remarks column on the data spreadsheet that was submitted to the state. IV.B ASSOCIATION SIGNIFICANT ISSUES During calendar year 2003, the following key events occurred. • The MCFRBA revised its Memorandum of Agreement with the State of North Carolina. Changes were made to the detection levels required by the MOA to better reflect the limits of technology. Figure 43 lists the changes. Parameter Ammonia Nitrate+Nitrite as N TKN Arsenic Cadmium Copper Iron Nickel Lead Zinc • • Old Detection Level 0.01 mg/l 0.01 mg/l 0.20 mg/l 5 ug/l 0.1 ug/l 0.5 ug/l 50 ug/l 2.5 ug/l 0.2 ug/l 5 ug/l Figure 43 New Detection Level 0.02 mg/l 0.02 mg/l 0.03 mg/l 10 ug/l 0.5 ug/l 2 ug/l 25 ug/l 5 ug/l 0.5 ug/l 10 ug/l The MCFRBA hired a new contractor (Meritech) to conduct the ambient monitoring program. The MCFRBA held its annual meeting in August 2004. 36 • • • • • • Phase II of the productivity study was finalized and Dr. Whalen presented his findings at the August annual meeting. We are awaiting a final report. The design and acquisition for the Little Cross Creek BMP project was initiated. SIMILABS/Meritech collected ambient data for the period January 1, 2004 through December 31, 2004 and this data was reported to NCDWQ. Exceptions noted above and on the monthly data submittals. An aerial infrared survey was conducted on Cross Creek. Follow-up site visits were made, and follow-up sampling was scheduled for January through March 2005. The MCFRBA worked with the Western Wake Partners to develop a proposed nutrient management strategy for the middle Cape Fear River. The strategy was submitted to NCDWQ in December 2004. The protocol for chlorophyll a sample collection was changed from a surface grab sample to a depth-integrated sample in November 2004. Additionally, the chlorophyll a samples will now be collected on a year round basis instead of only in the summer months as the MOA specifies as the minimum requirement. IV.C FIELD AUDIT No field audit was conducted by NCDWQ, therefore there is nothing to report for calendar year 2004. 37 V. APPENDICES APPENDIX A WATER QUALITY DATA BY STATION – JANUARY 2004 THROUGH DECEMBER 2004 APPENDIX B STATISTICAL SUMMARY OF DATA COLLECTED JANUARY 2004 THROUGH DECEMBER 2004 APPENDIX C FLOW DATA APPENDIX D SUB-BASIN MAPS JANUARY 1, 2004 THROUGH DECEMBER 31, 2004 WATER QUALITY DATA APPENDIX A JANUARY 2003 THROUGH DECEMBER 2003 STATISTICAL SUMMARY OF DATA APPENDIX B Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 17 na na 17 na na 17 na na 17 na na 13 na na 0 0 0 0 0 0 13 13 13 13 13 12 7 0 0 0 0 0 13 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 13 na na 8 na na 288 na na 31 na na 32 na na na na na na na na 27.0 0.56 0.25 1.50 1.10 1060 59.8 na na na na na 2.1 Minimum Value 6 na na 6 na na 52 na na 6 na na 2 na na na na na na na na 4.7 0.01 0.01 0.30 0.13 6 0.5 na na na na na 0.74 Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 75 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na 0 0 0 0 0 0 12 12 12 12 12 11 0 0 0 0 0 0 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 1 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 3 na na 1 na na 2 na na 1 na na 6 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Maximum Value 14 na na 7 na na 92 na na 29 na na 5 na na na na na na na na 5.7 0.34 0.14 1.60 0.14 256 na na na na na na 1.7 5 na na 6 na na 50 na na 4 na na 1 na na na na na na na na 0.5 0.01 0.01 0.10 0.03 3 na na na na na na 0.24 Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 20 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 12 na na 12 na na 12 na na 12 na na 12 na na 0 0 0 0 0 0 12 12 12 12 12 12 0 0 0 0 0 0 12 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 0 4 na 0 4 na 0 6-9 0 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 25 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 0 na na 4 na na 0 na na 0 10 0 0 200 C 0 40 1 0 na na 0 1000 0 0 200 0 0 50 0 0 0.012 0 0 na na Minimum Value Station # 3 (Storet # B6320000) Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 1 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 25 0 0 50 0 0 2 0 0 7 0 0 50 0 1 na na 0 na na 2 na na 1 na na 1 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 200 0 0 50 0 0 0.012 0 0 na na WQ Standard/ Action Level (Storet # B6200000) Number of Exceedances Station # 2 15 na na 7 na na 153 na na 25 na na 11 na na na na na na na na 11.0 0.64 0.26 1.60 1.87 480 na na na na na na 2.2 Maximum Value (Storet # B6160000) 6 na na na na na 5 na na na na na 52 na na na na na 3 na na na na na 5 na na na na na na na na na na na na na na na na na 0.5 na 0.01 na 0.01 na 0.10 na 0.05 na 46 112 na na na na na na na na na na na na 0.85 na Minimum Value Station # 1 Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 17 na na 17 na na 17 na na 17 na na 12 na na 6 6 6 6 6 6 12 12 12 12 12 12 0 6 6 6 6 6 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 13 na na 8 na na 194 na na 30 na na 48 na na na na na na na na 57.0 0.50 0.28 4.90 1.00 600 na na na na na na 5.4 Geometric Mean Minimum Value 4 na na na na na 4 na na na na na 52 na na na na na 5 na na na na na 6 na na na na na na na na na na na na na na na na na 6.1 na 0.02 na 0.01 na 0.21 na 0.46 na 42 115 na na na na na na na na na na na na 0.87 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 17 na na 17 na na 17 na na 17 na na 12 na na 6 6 6 6 6 6 12 12 12 12 12 12 0 6 6 6 6 6 12 Maximum Value Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 13 4 0 4 na na na 0 4 na na na 0 6-9 1 8 4 0 6-9 na na na 0 6-9 na na na 0 na na 188 50 0 na na na na 0 na na na na 0 na na 31 6 0 na na na na 0 na na na na 0 50 0 46 5 0 50 na na na 0 50 na na na 1 25 0 3 0 4 25 0 3 0 6 50 0 5 3 6 2 0 1 0 0 7 0 6 1 4 50 0 24 5 0 na na 51.0 2.0 0 na na 0.42 0.02 5 na na 0.21 0.01 1 na na 2.00 0.10 0 10 1 19.80 0.16 0 200 C 680 17 0 40 na na na 0 na na 1230 94 0 1000 3 2750 486 0 200 0 138 5 6 50 0 5 3 0 0.012 0 0 0 0 na na 20.9 0.29 Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 72 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 12 na na 12 na na 12 na na 12 na na 12 na na 0 0 0 0 0 0 12 12 12 12 12 12 0 0 0 0 0 0 12 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 1 0 4 na 0 4 na 0 6-9 1 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 1 25 0 3 25 0 6 50 0 6 2 0 0 7 4 2 50 0 0 na na 0 na na 2 na na 1 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 4 0 200 0 6 50 0 0 0.012 0 0 na na Minimum Value Station # 6 (Storet # B6830000) Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 2 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 25 0 0 50 0 0 2 0 0 7 0 0 50 0 1 na na 2 na na 7 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 200 0 0 50 0 0 0.012 0 0 na na WQ Standard/ Action Level (Storet # B6840000) Number of Exceedances Station # 5 14 na na 7 na na 144 na na 26 na na 10 na na na na na na na na 16.0 0.31 0.29 1.40 0.61 500 na na na na na na 1.7 Maximum Value (Storet # B6370000) 6 na na 6 na na 40 na na 3 na na 4 na na na na na na na na 0.5 0.01 0.01 0.30 0.09 26 na na na na na na 0.53 Minimum Value Station # 4 na na na na na na na na na na na na na na na na na na na na na na na na na na 81 na na na na na na na Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na 0 0 0 0 0 0 12 12 12 12 12 12 0 0 0 0 0 0 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 14 na na 7 na na 60 na na 26 na na 65 na na na na na na na na 13.0 0.34 0.14 1.30 0.91 1800 na na na na na na 1.8 Geometric Mean Minimum Value 7 na na na na na 5 na na na na na 20 na na na na na 4 na na na na na 2 na na na na na na na na na na na na na na na na na 0.5 na 0.01 na 0.01 na 0.30 na 0.09 na 28 124 na na na na na na na na na na na na 0.64 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 17 17 17 17 16 16 17 17 16 17 17 17 12 na na 0 0 0 0 0 0 12 12 12 12 12 12 0 0 0 0 0 0 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 1 0 4 2 0 4 2 0 6-9 1 0 6-9 1 0 6-9 1 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 25 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 1 na na 4 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 200 0 0 50 0 0 0.012 0 0 na na Maximum Value 11 11 11 8 8 8 178 177 177 29 29 29 27 na na na na na na na na 38.0 3.69 0.13 2.70 0.90 600 na na na na na na 3.2 3 3 3 3 3 3 52 52 52 6 6 6 5 na na na na na na na na 3.0 0.01 0.01 0.40 0.45 14 na na na na na na 1.02 Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 70 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 17 17 16 17 16 16 17 17 16 17 16 16 12 na na 6 6 6 6 6 6 12 12 12 12 12 12 0 6 6 6 6 6 12 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 0 4 na 0 4 na 0 6-9 5 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 1 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 2 na na 1 na na 6 na na 2 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Minimum Value Station # 10 (Storet # B7300000) Number of Observations <RL 0 4 1 11 3 na 0 4 1 11 3 na 0 4 2 11 4 na 0 6-9 1 7 3 na 0 6-9 1 8 3 na 0 6-9 1 8 4 na 0 na na 181 52 na 0 na na 180 52 na 0 na na 180 52 na 0 na na 29 6 na 0 na na 28 6 na 0 na na 28 6 na 0 50 0 26 4 na 0 50 na na na na 0 50 na na na na 2 25 0 4 0 na 4 88 0 3 0 na 6 50 0 5 3 na 6 2 0 1 0 na 0 7 1 8 1 na 3 50 1 70 5 na 0 na na 42.0 2.0 na 0 na na 0.43 0.01 na 2 na na 0.24 0.01 na 0 na na 1.30 0.40 na 0 10 0 1.00 0.43 na 0 200 C 11000 18 166 0 40 na na na na 0 na 0 988 140 na 0 1000 2 1780 491 na 0 0 0 na na na 6 50 0 5 3 na 0 0.012 0 0 0 na 0 na na 2.0 0.96 na WQ Standard/ Action Level (Storet # B7480000) Number of Exceedances Station # 8 Maximum Value (Storet # B7300000) Minimum Value Station # 7 Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na 0 0 0 0 0 0 12 12 12 12 12 12 0 0 0 0 0 0 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 11 na na 7 na na 52 na na 25 na na 4 na na na na na na na na 19.0 0.49 0.51 2.50 0.48 800 na na na na na na 3.0 Geometric Mean Minimum Value 4 na na na na na 4 na na na na na 20 na na na na na 8 na na na na na 2 na na na na na na na na na na na na na na na na na 1.9 na 0.01 na 0.05 na 0.40 na 0.05 na 31 131 na na na na na na na na na na na na 0.60 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na 0 0 0 0 0 0 12 12 12 12 12 12 0 0 0 0 0 0 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 0 0 4 0 0 6-9 6 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 2 na na 3 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Maximum Value 12 na na 7 na na 53 na na 26 na na 10 na na na na na na na na 56.0 0.47 0.30 3.60 0.50 3600 na na na na na na 4.1 Geometric Mean 5 na na na na na 4 na na na na na 20 na na na na na 8 na na na na na 4 na na na na na na na na na na na na na na na na na 6.0 na 0.01 na 0.01 na 0.22 na 0.08 na 28 111 na na na na na na na na na na na na 0.32 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 15 15 15 15 15 15 15 14 14 15 15 15 11 na na 5 5 5 5 5 5 11 11 10 11 11 10 6 5 5 5 5 5 11 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 2 0 4 0 0 4 0 0 6-9 11 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 2 na na 0 na na 0 na na 1 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Minimum Value Station # 14 (Storet # B8290000) Number of Observations <RL 0 4 0 0 4 1 0 4 1 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 2 25 0 2 88 0 5 50 0 5 2 0 1 7 0 3 50 0 0 na na 1 na na 2 na na 0 na na 0 10 0 0 200 C 1 40 0 0 na na 0 1000 1 0 0 0 5 50 0 0 0.012 0 0 na na WQ Standard/ Action Level (Storet # B8230000) Number of Exceedances Station # 13 10 10 10 8 8 9 157 156 156 29 28 28 17 na na na na na na na na 33.0 0.43 0.18 3.00 0.90 320 23.3 na na na na na 3.6 Maximum Value (Storet # B7700000) 6 4 4 6 6 6 24 75 75 12 12 12 5 na na na na na na na na 2.0 0.01 0.01 0.39 0.09 12 0.5 na na na na na 1.09 Minimum Value Station # 12 na na na na na na na na na na na na na na na na na na na na na na na na na na 57 na na na na na na na Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 15 15 15 15 15 15 15 15 15 15 15 15 10 na na 0 0 0 0 0 0 10 10 10 10 10 10 0 0 0 0 0 0 10 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 11 11 11 7 7 7 178 162 163 29 29 29 27 na na na na na na na na 29.0 0.46 0.22 5.30 0.86 170 na na na na na na 6.2 Minimum Value 6 5 4 6 7 6 52 52 52 12 12 12 6 na na na na na na na na 6.0 0.02 0.01 0.54 0.09 4 na na na na na na 1.11 Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 34 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 15 15 15 15 15 15 15 15 15 15 15 15 11 na na 0 0 0 0 0 0 11 11 10 11 11 10 7 0 0 0 0 0 11 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 1 0 4 0 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 0 na na 0 na na 0 na na 0 10 0 0 200 C 2 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Maximum Value 11 11 11 8 8 8 176 182 169 29 29 29 15 na na na na na na na na 39.0 0.54 0.23 1.10 1.14 135 na na na na na na 2.2 Geometric Mean 6 na 4 na 4 na 6 na 6 na 6 na 52 na 103 na 103 na 12 na 12 na 12 na 4 na na na na na na na na na na na na na na na na na 4.0 na 0.02 na 0.03 na 0.55 na 0.15 na 11 39 na na na na na na na na na na na na 0.95 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 15 15 15 15 15 15 15 15 15 15 15 15 10 na na 0 0 0 0 0 0 10 10 10 10 10 10 0 0 0 0 0 0 10 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 0 4 0 0 4 0 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 0 na na 1 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Minimum Value Station # 18 (Storet # B8306000) Number of Observations <RL 0 4 0 0 4 1 0 4 0 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 0 na na 0 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na WQ Standard/ Action Level (Storet # B8305000) Number of Exceedances Station # 17 10 10 10 8 8 9 176 176 176 29 29 29 14 na na na na na na na na 15.0 0.55 0.27 0.90 1.17 1200 na na na na na na 2.0 Maximum Value (Storet # B8302000) 6 4 4 6 6 6 103 103 99 12 12 12 6 na na na na na na na na 1.0 0.02 0.04 0.49 0.11 6 na na na na na na 0.91 Minimum Value Station # 16 na na na na na na na na na na na na na na na na na na na na na na na na na na 33 na na na na na na na Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 15 15 15 15 15 15 15 15 15 15 15 15 10 na na 0 0 0 0 0 0 10 10 10 10 10 10 0 0 0 0 0 0 10 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 10 10 10 7 8 9 180 180 180 29 29 29 15 na na na na na na na na 21.0 0.65 0.32 2.50 1.59 140 na na na na na na 3.4 Minimum Value 6 3 4 6 6 6 103 52 52 12 12 12 4 na na na na na na na na 4.0 0.02 0.01 0.55 0.12 4 na na na na na na 0.92 Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 25 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 15 15 15 15 15 15 15 15 15 15 15 14 11 na na 0 0 0 0 0 0 11 11 10 11 11 10 7 0 0 0 0 0 11 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 1 0 4 0 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 0 na na 1 na na 0 na na 0 10 0 0 200 C 2 40 0 0 0 0 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Maximum Value na na 2.3 0.92 6.0 0.02 0.01 0.56 0.12 4 0.5 19.0 0.56 0.32 1.30 1.29 120 38.4 9 5 9 3 9 4 7 6 7 6 7 6 181 103 181 103 181 103 29 12 29 12 29 12 15 5 na na na na Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 29 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 15 15 15 15 15 15 15 15 15 14 15 15 10 na na 0 0 0 0 0 0 10 10 10 10 10 10 0 0 0 0 0 0 10 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 0 4 1 0 4 0 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 0 na na 1 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na Minimum Value Station # 22 (Storet # B8340130) Number of Observations <RL 0 4 0 0 4 0 0 4 0 0 6-9 0 0 6-9 1 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 88 0 0 50 0 0 2 0 0 7 0 0 50 0 1 na na 0 na na 0 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 0 0 0 50 0 0 0.012 0 0 na na WQ Standard/ Action Level (Storet # B8339000) Number of Exceedances Station # 21 10 10 10 7 7 7 181 181 180 29 30 30 22 na na na na na na na na 34.0 0.26 0.16 1.10 1.33 520 na na na na na na 2.3 Maximum Value (Storet # B8320000) 6 5 5 6 6 7 52 52 52 12 11 11 6 na na na na na na na na 0.5 0.02 0.04 0.50 0.14 12 na na na na na na 1.14 Minimum Value Station # 20 na na na na na na na na na na na na na na na na na na na na na na na na na na 47 na na na na na na na Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 15 15 15 15 15 15 15 15 15 15 15 15 10 na na 0 0 0 0 0 0 10 10 10 10 10 10 0 0 0 0 0 0 10 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 11 11 11 7 7 7 181 181 181 31 30 30 18 na na na na na na na na 17.0 0.23 0.12 1.00 1.44 152 na na na na na na 2.3 Minimum Value 5 3 4 6 7 7 52 52 52 11 11 11 6 na na na na na na na na 4.0 0.01 0.01 0.45 0.12 6 na na na na na na 0.92 Geometric Mean na na na na na na na na na na na na na na na na na na na na na na na na na na 23 na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 15 15 15 15 15 15 15 15 15 15 15 15 10 0 0 0 0 0 0 0 0 9 10 10 10 10 10 0 0 0 0 0 0 10 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 0 0 4 1 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 25 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 0 na na 1 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 0 0 200 0 0 50 0 0 0.012 0 0 na na Maximum Value 12 11 11 7 7 7 180 178 178 31 31 31 14 na na na na na na na na 32.0 0.22 0.11 1.20 1.68 290 na na na na na na 2.8 Geometric Mean 5 na 4 na 4 na 6 na 6 na 6 na 52 na 52 na 52 na 11 na 11 na 11 na 6 na na na na na na na na na na na na na na na na na 4.0 na 0.02 na 0.01 na 0.49 na 0.12 na 4 23 na na na na na na na na na na na na 1.32 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 15 15 15 15 15 15 15 15 15 15 15 15 11 na na 5 5 5 5 5 5 11 11 10 11 11 10 7 5 5 5 5 5 11 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 0 4 1 0 4 1 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 0 25 0 0 50 0 0 2 0 0 7 0 0 50 0 0 na na 1 na na 1 na na 0 na na 0 10 0 0 200 C 0 40 na 0 0 0 0 1000 0 0 200 0 0 50 0 0 0.012 0 0 na na Minimum Value Station # 25 (Storet # B8349000) Number of Observations <RL 0 4 0 0 4 0 0 4 0 0 6-9 0 0 6-9 0 0 6-9 0 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 0 2 25 0 5 50 0 4 2 0 1 7 0 3 50 0 0 na na 0 na na 1 na na 0 na na 0 10 0 0 200 C 1 40 0 0 na na 0 1000 2 0 200 0 5 50 0 0 0.012 0 0 na na WQ Standard/ Action Level (Storet # B8348000) Number of Exceedances Station # 24 11 11 11 7 7 7 179 177 177 31 31 31 13 na na 2 3 5 1 6 24 20.0 0.51 0.18 1.20 1.22 206 19.2 631 1650 127 5 0 1.9 Maximum Value (Storet # B8340650) 6 5 5 6 6 6 52 52 52 11 11 11 5 na na 1 1 3 0 1 5 4.0 0.02 0.01 0.40 0.13 3 0.5 258 692 49 3 0 0.96 Minimum Value Station # 23 na na na na na na na na na na na na na na na na na na na na na na na na na na 20 na na na na na na na Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na na na na na na na 12 12 12 12 12 12 na na na na na na 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 14 na na 7 na na 111 na na 26 na na 21 na na na na na na na na 22.0 na na na na 280 na na na na na na na Geometric Mean Minimum Value 5 na na na na na 6 na na na na na 50 na na na na na 2 na na na na na 6 na na na na na na na na na na na na na na na na na 1.0 na na na na na na na na na 31 105 na na na na na na na na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na na na na na na na 12 12 12 12 12 12 na na na na na na na Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 3 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 na 0 88 na 0 50 na 0 2 na 0 7 na 0 50 na 5 na na 1 na na 4 na na 0 na na 0 10 na 0 200 C 0 40 na 0 na na 0 1000 na 0 0 na 0 50 na 0 0.012 na 0 na na Maximum Value 14 na na 6 na na 52 na na 24 na na 4 na na na na na na na na 6.5 na na na na 250 na na na na na na na Geometric Mean 8 na na na na na 5 na na na na na 24 na na na na na 4 na na na na na 2 na na na na na na na na na na na na na na na na na 0.5 na na na na na na na na na 53 106 na na na na na na na na na na na na na na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 12 na na 12 na na 12 na na 12 na na 12 na na na na na na na na 12 12 12 12 12 12 na na na na na na 12 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 0 4 na 0 4 na 0 6-9 1 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 na 0 25 na 0 50 na 0 2 na 0 7 na 0 50 na 0 na na 1 na na 6 na na 1 na na 0 10 na 0 200 C 0 40 na 0 na na 0 1000 na 0 200 na 0 50 na 0 0.012 na 0 na na Minimum Value Station # 28 (Storet # B7679300) Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 6 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 na 0 88 na 0 50 na 0 2 na 0 7 na 0 50 na 1 na na 6 na na 7 na na 0 na na 5 10 na 0 200 C 0 40 na 0 na na 0 1000 na 0 0 na 0 50 na 0 0.012 na 0 na na WQ Standard/ Action Level (Storet # B7280000) Number of Exceedances Station # 27 12 na na 4 na na 52 na na 24 na na 3 na na na na na na na na 6.0 na na na na 200 na na na na na na na Maximum Value (Storet # B6252000) 6 na na 3 na na 24 na na 10 na na 2 na na na na na na na na 2.0 na na na na 19 na na na na na na na Minimum Value Station # 26 na na na na na na na na na na na na na na na na na na na na na na na na na na 48 na na na na na na na Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na na na na na na na 12 12 12 12 12 12 na na na na na na 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Maximum Value 15 na na 7 na na 101 na na 24 na na 80 na na na na na na na na 80.0 0.41 0.13 2.40 0.44 5800 na na na na na na 2.8 Geometric Mean Minimum Value 4 na na na na na 6 na na na na na 50 na na na na na 2 na na na na na 8 na na na na na na na na na na na na na na na na na 0.5 na 0.02 na 0.01 na 0.10 na 0.02 na 44 176 na na na na na na na na na na na na 0.12 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 12 na na 12 na na 12 na na 12 na na 12 na na na na na na na na 12 12 12 12 12 12 na na na na na na 12 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 1 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 na 0 25 na 0 50 na 0 2 na 0 7 na 0 50 na 1 na na 3 na na 7 na na 1 na na 1 10 0 0 200 C 0 40 na 0 na na 0 1000 na 0 200 na 0 50 na 0 0.012 na 0 na na Maximum Value 16 na na 7 na na 62 na na 23 na na 15 na na na na na na na na 11.0 0.35 0.12 1.10 0.61 860 na na na na na na 1.6 Geometric Mean 7 na na na na na 6 na na na na na 50 na na na na na 2 na na na na na 4 na na na na na na na na na na na na na na na na na 0.5 na 0.01 na 0.01 na 0.10 na 0.03 na 32 114 na na na na na na na na na na na na 0.33 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 12 na na 12 na na 12 na na 11 na na 12 na na na na na na na na 12 na na na na 12 na na na na na na na Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 0 4 na 0 4 na 0 6-9 2 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 2 0 50 na 0 50 na 0 25 na 0 25 na 0 50 na 0 2 na 0 7 na 0 50 na 0 na na 0 na na 3 na na 1 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 na 0 200 na 0 50 na 0 0.012 na 0 na na Minimum Value Station # C3a (Storet # B6130500) Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 1 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 na 0 25 na 0 50 na 0 2 na 0 7 na 0 50 na 1 na na 2 na na 4 na na 1 na na 0 10 na 0 200 C 0 40 na 0 na na 0 1000 na 0 200 na 0 50 na 0 0.012 na 0 na na WQ Standard/ Action Level (Storet # B6230000) Number of Exceedances Station # C2 14 na na 7 na na 96 na na 24 na na 6 na na na na na na na na 4.0 na na na na 190 na na na na na na na Maximum Value (Storet # B6130500) 7 na na 6 na na 50 na na 2 na na 4 na na na na na na na na 0.5 na na na na 25 na na na na na na na Minimum Value Station # C1 na na na na na na na na na na na na na na na na na na na na na na na na na na 79 na na na na na na na Geometric Mean Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 11 na na 11 na na 11 na na 11 na na 12 na na na na na na na na 12 12 12 12 12 12 na na na na na na 12 Geometric Mean Minimum Value Maximum Value Number of Exceedances WQ Standard/ Action Level Number of Observations <RL Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen Number of Observations 10 na na 10 na na 10 na na 10 na na 10 na na na na na na na na 10 10 10 10 10 10 na na na na na na 10 Number of Exceedances WQ Standard/ Action Level Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 10 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 na 0 88 na 0 50 na 0 2 na 0 7 na 0 50 na 0 na na 1 na na 0 na na 0 na na 0 10 0 0 200 C 0 40 na 0 na na 0 1000 na 0 0 na 0 50 na 0 0.012 na 0 na na Maximum Value 12 na na 5 na na 120 na na 25 na na 36 na na na na na na na na 6.6 0.43 0.16 2.80 1.09 237 na na na na na na 3.4 Geometric Mean 6 na na na na na 4 na na na na na 50 na na na na na 9 na na na na na 2 na na na na na na na na na na na na na na na na na 1.0 na 0.01 na 0.03 na 0.70 na 0.17 na 31 104 na na na na na na na na na na na na 0.89 na Parameter DO Upper DO Middle DO Lower pH Upper pH Middle pH Lower Conductivity Upper Conductivity Middle Conductivity Lower Temp Upper Temp Middle Temp Lower Turbidity Upper Turbidity Middle Turbidity Lower Lead Nickel Chromium Cadmium Copper Zinc TSS Total Phosphorous Ammonia Nitrogen TKN Nitrite/Nitrate Fecal Coliform Corrected Cla Aluminum Iron Manganese Arsenic Mercury Total Nitrogen 10 na na 10 na na 10 na na 10 na na 10 na na na na na na na na 10 10 10 10 10 10 na na na na na na 10 Number of Observations Appendix B – Statistical Summary of Data Collected January 1, 2004 Through December 31, 2004 0 4 0 12 4 na 0 4 na na na na 0 4 na na na na 0 6-9 0 8 6 na 0 6-9 na na na na 0 6-9 na na na na 0 na na 81 50 na 0 na na na na na 0 na na na na na 0 na na 28 8 na 0 na na na na na 0 na na na na na 0 50 0 6 2 na 0 50 na na na na 0 50 na na na na 0 25 na na na na 0 88 na na na na 0 50 na na na na 0 2 na na na na 0 7 na na na na 0 50 na na na na 1 na na 9.0 0.5 na 4 na na 0.33 0.01 na 4 na na 0.24 0.01 na 0 na na 2.70 0.32 na 0 10 0 0.60 0.02 na 0 200 E 10600 22 236 0 40 na na na na 0 na na na na na 0 1000 na na na na 0 0 na na na na 0 50 na na na na 0 0.012 na na na na 0 na na 3.2 0.50 na Minimum Value Station # C6 (Storet # B8340100) Number of Observations <RL 0 4 0 0 4 na 0 4 na 0 6-9 10 0 6-9 na 0 6-9 na 0 na na 0 na na 0 na na 0 na na 0 na na 0 na na 0 50 0 0 50 na 0 50 na 0 25 na 0 88 na 0 50 na 0 2 na 0 7 na 0 50 na 4 na na 1 na na 1 na na 0 na na 2 10 0 0 200 C 0 40 na 0 na na 0 1000 na 0 0 na 0 50 na 0 0.012 na 0 na na WQ Standard/ Action Level (Storet # B8315000) Number of Exceedances Station # C5 11 na na 4 na na 61 na na 25 na na 21 na na na na na na na na 5.7 0.42 0.21 1.60 0.19 140 na na na na na na 1.7 Maximum Value (Storet # B6230000) 5 na na 4 na na 47 na na 9 na na 1 na na na na na na na na 0.5 0.01 0.01 0.51 0.04 28 na na na na na na 0.59 Minimum Value Station # C4 na na na na na na na na na na na na na na na na na na na na na na na na na na 52 na na na na na na na Geometric Mean Appendix C FLOW DATA APPENDIX C CFR Flow Data Station #4 Date Flow CFS 7/15/1998 574 8/17/1998 571 9/10/1998 590 10/14/1998 591 11/19/1998 676 12/14/1998 528 1/12/1999 1,130 2/8/1999 6,080 4/13/1999 1,860 5/12/1999 678 6/9/1999 569 7/13/1999 571 8/3/1999 596 9/8/1999 8,250 10/12/1999 2,050 11/10/1999 1,160 12/9/1999 1,930 1/10/2000 3,730 2/14/2000 10,900 3/17/2000 3,610 4/21/2000 4,650 5/2/2000 5,790 6/20/2000 906 7/11/2000 742 8/21/2000 621 9/25/2000 2,980 10/17/2000 609 11/20/2000 833 12/12/2000 578 1/10/2001 645 1/22/2001 1,110 2/20/2001 1,070 3/13/2001 2,060 4/18/2001 1,100 5/9/2001 1,100 6/11/2001 630 7/19/2001 637 8/10/2001 559 9/28/2001 793 10/19/2001 639 11/27/2001 559 12/10/2001 504 1/28/2002 4,320 2/18/2002 921 3/11/2002 907 4/12/2002 1,040 5/13/2002 606 6/13/2002 610 7/4/2002 376 8/30/2002 312 9/12/2002 247 10/23/2002 2,900 11/15/2002 11,600 12/9/2002 8,220 12/19/2002 11,700 2/24/2003 14,400 3/21/2003 24,100 4/21/2003 16,500 5/30/2003 12,900 6/6/2003 5,290 6/25/2003 1,630 Station #14 Date Flow CFS 7/13/1998 799 8/19/1998 966 9/8/1998 1,920 10/12/1998 1,610 11/16/1998 1,290 12/17/1998 1,340 1/11/1999 1,930 2/10/1999 5,580 3/8/1999 1,530 4/12/1999 4,220 5/10/1999 1,210 6/7/1999 724 7/15/1999 1,660 8/11/1999 483 9/13/1999 3,790 10/25/1999 7,120 11/4/1999 2,990 12/20/1999 5,450 2/11/2000 8,030 3/21/2000 6,880 4/26/2000 5,510 5/4/2000 5,870 6/22/2000 1,210 7/13/2000 1,400 8/30/2000 1,260 9/28/2000 7,200 10/26/2000 887 11/29/2000 2,450 1/11/2001 1,450 1/24/2001 2,330 2/21/2001 3,200 3/8/2001 5,630 4/19/2001 1,710 5/10/2001 864 6/7/2001 5,280 7/18/2001 894 8/13/2001 6,140 9/26/2001 1,840 10/22/2001 1,060 11/28/2001 1,190 12/11/2001 813 1/31/2002 6,010 2/19/2002 1,910 3/13/2002 1,630 4/8/2002 2,670 5/15/2002 910 6/11/2002 781 7/3/2002 759 8/26/2002 699 9/16/2002 1,420 1/29/2003 2,020 2/21/2003 9,400 5/28/2003 26,300 6/19/2003 12,400 6/26/2003 14,400 7/18/2003 2,970 8/25/2003 3,450 9/15/2003 1,960 12/19/2003 2,310 10/14/2003 1,990 11/18/2003 11,100 Appendix C Station #25 Date Flow CFS 7/13/1998 757 8/19/1998 940 9/8/1998 3,120 10/12/1998 1,880 11/16/1998 1,250 12/17/1998 1,950 1/11/1999 2,700 2/10/1999 9,290 3/8/1999 1,950 4/12/1999 4,780 5/10/1999 2,500 6/7/1999 774 7/15/1999 1,630 8/11/1999 520 9/13/1999 9,510 10/25/1999 13,300 11/4/1999 3,920 12/20/1999 6,840 1/21/2000 6,600 2/11/2000 10,700 3/21/2000 9,480 4/26/2000 7,710 5/4/2000 7,750 6/22/2000 1,590 7/13/2000 1,450 8/30/2000 1,470 9/28/2000 9,130 10/26/2000 1,020 11/29/2000 3,250 1/11/2001 1,440 1/24/2001 2,530 2/21/2001 4,820 3/8/2001 6,930 4/19/2001 1,880 5/10/2001 786 6/7/2001 6,050 7/18/2001 780 8/13/2001 5,800 9/26/2001 1,850 10/22/2001 1,050 11/28/2001 1,410 12/11/2001 1,070 1/31/2002 7,580 2/21/2002 1,980 3/13/2002 1,910 4/8/2002 3,670 5/15/2002 929 6/11/2002 823 7/3/2002 892 8/26/2002 614 9/16/2002 970 10/24/2002 7,380 12/2/2002 1,870 1/29/2003 2,210 2/21/2003 8,430 1/10/2003 4,840 4/25/2003 18,300 5/28/2003 18,300 6/19/2003 10,900 6/26/2003 4,110 7/18/2003 11,200 CFR Flow Data (continued) Station #4 Station #14 Station #25 Date Flow CFS Date Flow CFS Date Flow CFS 7/16/2003 6,270 3/8/2004 4230 8/25/2003 4,290 8/28/2003 1,740 4/5/2004 2680 9/15/2003 2,440 9/8/2003 8,980 5/10/2004 3260 10/14/2003 2,380 10/9/2003 1,020 5/24/2004 1540 11/18/2003 2,060 11/17/2003 1,020 6/14/2004 1660 12/19/2003 10,800 12/9/2003 1,390 6/28/2004 2940 3/8/2004 5970 1/20/2004 1,710 7/20/2004 1050 4/5/2004 3330 2/9/2004 7,520 7/27/2004 2910 5/10/2004 5270 3/16/2004 2,730 8/4/2004 2620 5/24/2004 1790 4/15/2004 4,540 8/11/2004 1020 6/14/2004 2070 5/5/2004 3,910 10/11/2004 1690 6/28/2004 3540 5/17/2004 731 11/16/2004 5000 7/15/2004 1800 6/3/2004 688 12/29/2004 2620 7/29/2004 1510 6/15/2004 581 8/9/2004 2400 7/7/2004 1,430 8/16/2004 9200 7/15/2004 646 9/20/2004 8030 8/17/2004 3,490 9/24/2004 5900 8/26/2004 942 10/18/2004 2350 10/22/2004 1,590 11/10/2004 1540 11/16/2004 6,440 12/7/2004 5650 12/29/2004 1,360 Std. Dev 4,284 Std. Dev 4,251 Std. Dev 3,906 Max 24,100 Max 26,300 Max 18,300 Min 247 Min 483 Min 520 Average 3,086 Average 3,652 Average 4,363 Std. Converted Std. Converted Std. Converted AvG Converted AvG Converted AvG Converted Max Acceptable 13,796 Max Acceptable 14,279 Max Acceptable 14,127 Min Acceptable -1,198 Min Acceptable -598 Min Acceptable 457 Appendix C Appendix D SUB-BASIN MAPS APPENDIX D Appendix D Appendix D Appendix D Appendix D Subbasin 03-06-16