WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO THE CHESAPEAKE BAY- INTERIM DATA REPOR1 903R80003 U.S. GEOLOGICAL SURVEY Water-Resources Investigations 80-78 U.S. Fnvifortfir'jJ F.-c'.c^on R3i:-oni;ilr.;o:.nation i.sso 1 in cooperation with the TD IRONMENTAL PROTECTION AGENCY 223.1 KE BAY PROGRAM .L32 1980 copy 2 ------- 50272-lQj REPORT DOCUMENTATION j i-_REPORT NO. PAGE 4. Title and Subtitle WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO THE CHESAPEAKE BAY—INTERIM DATA REPORT 7. Author(s) David J. Lang and David Grason 9. Performing Organization Name and Address U.S. Geological Survey, Water Resources Division 208 Carroll Building 8600 La Salle Road Towson, Maryland 21204 12. Sponsoring Organization Name and Address U.S. Geological Survey, Water Resources Division 208 Carroll Building 8600 La Salle Road Towson, Maryland __21204_ _ _ 15. Supplementary Notes Prepared in cooperation with the U.S. Environmental Agency Chesapeake Bay Program 3. Recipient's Accession No 5. Report Date September 1980 8. Performing Organization Rept. No _USG_S/_WRI-80-78_ 10. Project/Task/Work Unit No. 11. Contract(C) or Grant(G) No. (C) (G) 13. Type of Report & Period Covered Interim 14. 16. Abstract (Limit: 200 words) The U.S. Geological Survey is monitoring the water quality of three major tributaries to the Chesapeake Bay at their fall lines to obtain estimates of con- stituent inputs potentially available to the bay. The monitoring sites are: Susquehanna River at Conowingo, Md.; Potomac River at Washington, D.C.; and James River at Cartersville, Va. Water-quality data collected from October 1978 to April 1980 are presented in tables. Concentrations of major ions, nutrient and carbon species, metals, pesticides, suspended sediment, and other selected con- stituents are presented for a range of flows. The mean, standard deviation, minimum, maximum, and median values for each constituent were determined by stand- ard methods and are presented for each sampling station. Bivariate linear regres- sions were run for all constituents versus streamflow, specific conductance, and suspended sediment. Those relationships exhibiting coefficients of determination greater than 0.50 are tabulated. 17. Document Analysis a. Descriptors ^Chesapeake Bay, *Sediment transport, ^Sediments, *Water quality, Pesticides, Nutrients, Basic data collections, Trace elements, Bays, Bottom sediments, Herbicides, Heavy metals, Insecticides, Potomac River, Rivers, Statistics b. Identifiers/Open-Ended Terms James River, Susquehanna River c. COSATI Field/Group 18. Availability Statement No restriction on distribution 19. Security Class (This Report) _yNCLASSIFIE_D _ 20. Security Class (This Page) UNCLASSIFIED 21. No. of Pages 66 22. Price (See ANSI-Z39.18) See Instructions on Reverse OPTIONAL FORM 272 (4-77) (Formerly NTIS-35) Department of Commerce ------- WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO THE CHESAPEAKE BAY— INTERIM DATA REPORT By David J. Lang and David Grason U.S. GEOLOGICAL SURVEY Water-Resources Investigations 80-78 Prepared in cooperation with the U.S. ENVIRONMENTAL PROTECTION AGENCY CHESAPEAKE BAY PROGRAM September 1980 ------- UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL SURVEY H. William Menard, Director For additional information write to: U.S. Geological Survey 208 Carroll Building 8600 La Salle Road Towson, Maryland 21204 ------- CONTENTS Page Conversion of measurement units V Definition of terms VI Abstract 1 Introduction 1 Acknowledgment 3 Hydrologic conditions 3 Data collection and presentation 5 Data-collection sites 5 Methods of sample collection and analysis 5 Data presentation 5 References 11 Supplemental data 13 ILLUSTRATION Page Figure 1. Map showing location of drainage basins of the Susquehanna, Potomac, and James Rivers . . . Ill ------- TABLES Page Table 1. Monthly precipitation, in inches, at selected sites from January 1979 to March 1980 Coefficients of determination (R ) greater than 0.50 using more than five correlated data pairs for bivariate linear regressions of chemical constituents with streamflow, specific conductance, and suspended sediment 6 Basic statistics of water-quality data for the Susquehanna River at Conowingo, Md 8 Basic statistics of water-quality data for the Potomac River at Chain Bridge at Washington, D.C 9 Basic statistics of water-quality data for the James River at Cartersville, Va 10 SUPPLEMENTAL DATA Page Supplemental Data A. Water-quality data for Susquehanna River at Conowingo, Md., from November 1978 to April 1980 14 B. Water-quality data for Potomac River at Chain Bridge at Washington, D.C., from October 1978 to April 1980 33 C. Water-quality data for James River at Cartersville, Va., from October 1978 to April 1980 42 D. Pesticide data from the three monitoring sites from November 1978 to April 1980 51 E. Suspended-sediment records for the Susquehanna River at Conowingo, Md., from October 1979 to March 1980 57 F. Suspended-sediment records for Potomac River at Chain Bridge at Washington, D.C., from October 1978 to March 1980 59 G. Results of analysis of bottom material and water samples from Susquehanna River below Conowingo Dam at Conowingo, Md 65 IV ------- CONVERSION OF MEASUREMENT UNITS The following factors may be used to convert the inch-pound units published in this report to International System (SI) metric units. Multiply inch-pound unit inch (in.) foot (ft) mile (mi) 2 square mile (mi ) gallon (gal) cubic foot (ft3) cubic foot per second (ft3/s) gallon per minute (gal/min degree Fahrenheit (°F) unit By Length 25.40 .0254 .3048 1.609 Area 2.590 Volume 3.785 .003785 .02832 Flow d 28.32 .02832 al/min) .06309 .00006309 Temperature F) -32 x 0.555 To obtain metric millimeter (mm) meter (m) meter (m) kilometer (km) square kilometer liter (L) cubic meter (m ) cubic meter (m ) liter per second cubic meter per (m /s) liter per second cubic meter per (nT/s) degree Celsius ( unit (km2) (L/s) second (L/s) second °C) V ------- DEFINITION OF TERMS Terms related to streamflow and water quality as used in the report are given below: Alkalinity is the capacity of a water to neutralize acids. Alkalinity in water is caused primarily by bicarbonates, carbonates, and hydroxides, and is expressed as equivalent calcium carbonate, CaCO . Chlorophyll a is the primary pigment of all oxygen-evolving photo- synthetic organisms and is present in all algae and photosynthetic organ- isms, except some photosynthetic bacteria (Wetzel, 1975). Chlorophyll b, although common to higher plants, is found in green algae and other lower plants. This pigment functions as a light-gathering pigment in which absorbed light energy is transferred to chlorophyll a for primary photochemistry (Wetzel, 1975) . Cubic foot per second (CFS, ft /s) is the rate of streamflow repre- senting a volume of 1 cubic foot passing a given point during 1 second and is equivalent to 7.48 gallons per second or 448.8 gallons per minute. Fecal coliform bacteria are bacteria that are present in the intes- tines or feces of warmblooded animals. Their presence in water is con- sidered to indicate fecal pollution. In the laboratory, they are defined as all organisms that produce blue colonies within 24 hours when incubated at 44.5 ±0.2°C on M-FC medium (selective nutrient medium for fecal coliform growth). Their concentrations are expressed as number of colonies per 100 milliliters (mL) of sample. Fecal streptococcal bacteria are bacteria that are present in intes- tines or feces of warmblooded animals. Their presence in water is con- sidered to indicate fecal pollution. They are characterized as gram- positive, cocci bacteria which are capable of growth in brain-heart in- fusion broth. In the laboratory, they are defined as all the organisms which produce red or pink colonies within 48 hours at 35 ± 1.0 °C on M- enterrococcus medium (nutrient medium for fecal streptocci growth). Their concentrations are expressed as number of colonies per 100 milliliters of sample. Hardness of water is a physical-chemical characteristic that is com- monly recognized by the increased quantity of soap required to produce lather. It is attributable to the presence of alkaline earths (principally calcium and magnesium) and is expressed as equivalent calcium carbonate, CaC03. Kjeldahl nitrogen is the sum of free-ammonia and organic nitrogen compounds that are converted to ammonium sulfate, (NH )2SO , under special conditions of sample preparation. The sum of all nitrogen in a water sample is equal to Kjeldahl nitrogen plus nitrite and nitrate nitrogen concentrations. VI ------- Micrograms per gram (PG/G, yg/g) is a unit expressing the concen- tration of a chemical element as the mass (micrograms) of the element sorbed per unit mass (gram) of sediment. One microgram is one one-mil- lionth of a gram. Micrograms per liter (JJG/L, yg/L) is a unit expressing the concen- tration of chemical constituents in solution as mass (micrograms) of the solute per unit volume (liter) of water. One is equivalent to one milli- gram per liter. Milligrams per liter (MG/L, mg/L) is a unit for expressing the con- centration of chemical constituents in solution as mass (milligrams) of the solute per unit volume (liter) of water. One milligram is one one- thousandth of a gram. Organic nitrogen includes all nitrogenous organic compounds such as amino acids, polypeptides, and proteins. It is present naturally in all surface waters as a result of natural nitrogenous materials and biological life in the watersheds and streams, but excessive concentrations may indi- cate contamination from man-induced influences. Orthophosphate is the most common ionized form of phosphorus in water and the only one derived from natural sources. Orthophosphates comprise the inorganic portion of phosphorous and include the three ionization products of phosphoric acid H PO -1 , HPO -2 , and PO -3 in a water body, whose relative concentrations are governed by the pH of the water. Particle-size classification used in this report agrees with recom- mendations made by the American Geophysical Union Subcommittee on Sediment Terminology. The classification is as follows: Classification Size (mm) Method of analysis Clay 0.00024 - 0.004 Sedimentation. Silt .004 - .062 Sedimentation. Sand .062 - 2.0 Sedimentation or sieve. Gravel .... 2.0 - 64.0 Sieve. The particle-size distributions given in this report are not neces- sarily representative of all particles in transport in the stream. Most of the organic material is removed, and the sample is subjected to mechanical and chemical dispersion before analysis in distilled water. VII ------- Pesticides are chemical compounds used to control undesirable plants and animals. Major categories of pesticides include insecticides, miti- cides, fungicides, herbicides, and rodenticides. Insecticides and herbi- cides, which control insects and plants, respectively, are the two cate- gories presented in this report. Phosphorus is one of the major nutrients required for plant nutrition and is essential for life. Phosphorous is not the sole cause of eutrophi- cation of natural waters, but there is evidence that it is the key element required by fresh-water plants and, generally, is present in the least amount relative to need. pH of water is a measure of the hydrogen ion concentration, or more specifically, the hydrogen ion activity. It is most conveniently ex- pressed in logarithmic units and represents the negative base-10 log of the hydrogen-ion activity in moles per liter. Polychlorinated biphenols (PCB) are industrial chemicals that are mixtures of chlorinated biphenyl compounds having various percentages of chlorine. Polychlorinated napthalenes (PCN) are organochemical compounds simi- lar to polychlorinated biphenols, except the basic unit of molecular structure is napthalene instead of the biphenol complex. Sediment is solid material that originates mostly from disintegrated rocks and is transported by, suspended in, or deposited from water; it includes chemical and biochemical precipitates and decomposed organic ma- terial, such as humus. The quantity, characteristics, and cause of the occurrence of sediment in streams are influenced by environmental factors such as slope, length of slope, soil characteristics, land usage, and quantity and intensity of precipitation. Specific conductance is a measure of the ability of a water to conduct an electrical current and is expressed in micromhos per centimeter at 25°C. Because the specific conductance is related to the number and specific chemical types of ions in solution, it can be used for approximating the dissolved-solids content of water. Commonly, the concentration of dis- solved solids (in milligrams per liter) is about 65 percent of the specific conductance (in micromhos per centimeter at 25°C). This relation is not constant from stream to stream, and it may even vary with time in the same stream with changes in the composition of the water. Streamflow is the volume of water and sediment that passes a given point within a given period of time. Suspended, recoverable is the amount of a given constituent that is in solution after the part of a representative water/suspended-sediment sample that is retained on a 0.45- ym membrane filter has been digested by a method (usually using a dilute acid solution) that results in dissolution of only readily soluble substances. Complete dissolution of all the par- VIII ------- ticulate matter is not achieved by the digestion treatment and, thus, the determination represents something less than the "total" amount (that is, less than 95 percent) of the constituent present in the sample. To achieve comparability of analytical data, equivalent digestion procedures would be required of all laboratories performing such analyses because different digestion procedures are likely to produce different analytical results. Determinations of "suspended, recoverable" constituents are made ei- ther by analyzing portions of the material collected on the filter or, more commonly, by arithmetic difference, between the determinations of (1) total recoverable, and (2) dissolved concentrations of the constituent. Suspended sediment is any particulate or colloidal material that is maintained in suspension by the upward components of turbulent currents. Suspended-sediment concentration is the instantaneous or velocity- weighted concentration of suspended sediment in the sampled zone (from the water surface to a point approximately 0.3 feet above the bed) expressed as milligrams of dry sediment per liter of water-sediment mixture. Suspended-sediment discharge (tons/day) is the quantity of sediment, as measured by dry weight or volume, that passes a section of stream in a given time. It is computed by multiplying discharge, in cubic feet per second, times suspended-sediment concentration, in milligrams per liter, times 0.0027. Suspended, total is the total amount of a given constituent in the part of a representative water/suspended-sediment sample that is retained on a 0.45- ym membrane filter. This term is used only when the analytical procedure assures measurement of at least 95 percent of the constituent determined. A knowledge of the expected form of the constituent in the sample, as well as the analytical methodology used, is required to deter- mine when the results should be reported as "suspended, total." Total organic carbon is an index of the concentration of dissolved- and suspended-carbonaceous matter. High concentrations of organic matter in an aquatic environment can influence the dissolved-oxygen balance. If decomposable organic matter occurs in sufficient concentrations, intensive bacterial activity can result in complete oxygen depletion. Total, recoverable is the amount of a given constituent that is in solution after a representative water/suspended-sediment sample has been digested by a method (usually using a dilute acid solution) that results in dissolution of only readily soluble substances. Complete dissolution of all particulate matter is not achieved by the digestion treatment and, thus, the determination represents something less than the "total" amount (that is, less than 95 percent) of the constituent present in the dissolved and suspended phases of the sample. To achieve comparability of analytical data, equivalent digestion procedures would be required of all labora- tories performing such analyses because different digestion procedures are likely to produce different analytical results. IX ------- Turbidity of a water is the reduction of transparency due to the presence of suspended-particulate matter. Such material may consist of clay or silt, finely divided organic matter, or other microscopic organ- isms which cause light to be scattered and absorbed rather than transmitted in straight lines through the sample. One measurement of turbidity is the Naphelometric Turbidity Unit (NTU). X ------- WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO THE CHESAPEAKE BAY— INTERIM DATA REPORT By David J. Lang and David Grason ABSTRACT The U.S. Geological Survey is monitoring the water quality of three major tributaries to Chesapeake Bay at their fall lines to obtain estimates of constituent inputs potentially available to the bay. The monitoring sites are: Susquehanna River at Conowingo, Md.; Potomac River at Washington, D.C.; and James River at Cartersville, Va. Water-quality data collected from October 1978 to April 1980 are presented in tables. Concen- trations of major ions, nutrient and carbon species, metals, pesticides, suspended sediment, and other selected constituents are presented for a range of flows. The mean, standard deviation, minimum, maximum, and median values for each constituent were determined by standard methods and are presented for each sampling station. Bivariate linear regressions were run for all constituents versus streamflow, specific conductance, and sus- pended sediment. Those relationships exhibiting coefficients of determi- nation (R ) greater than 0.50 are tabulated. INTRODUCTION The U.S. Environmental Protection Agency (EPA) has been directed by the U.S. Congress (Senate Report No. 94-326) to conduct an in-depth study of the environmental quality of Chesapeake Bay. As part of the EPA study, the U.S. Geological Survey (USGS) is monitoring the water quality of the three major tributaries to Chesapeake Bay—the Susquehanna, Potomac, and James Rivers (see fig. 1). Together, these rivers drain about 65 percent of the land surface area contributing inflow to Chesapeake Bay. The ultimate objectives of the project are to provide the following water-quality information for the Susquehanna, Potomac, and James Rivers regarding: 1. Estimated loadings of major ions, suspended sediment, and selected nutrient species and trace metals. 2. Seasonal characterization of organic compounds, including selected pesticides. 3. Error analysis and statements of other limitations inherent in the information provided in the first two objectives. ------- 50 EXPLANATION Drainage Basin boundary A Active Surface Water station ^ Active Water Quality station A Active Surface Water and Water Quality station 77' 78 \y 50 MILES j ~ " NY PA 42' j Susquehanna River Basin r ..3 " 79 40" - PA MD Conowirvgo /_ V , - PA DEL :, N j *<*' >~* -,\ - Potbmac River ^ '' Basin ^ / < \ 39 Little Folls^ Cham Bridget-, {" \$*•'-- \ '''• '1 \ '" x"; ' "\ ? I , V- DEL MD 80 . / James S 38 / S / River '--- / Basin Cartersvi Me 37 Figure 1.—Location of drainage basins of the Susquehanna, Potomac, and James Rivers. ------- This report is a compilation of water-quality data collected from October 1978 to April 1980. It provides a base of information useful to many investigators studying Chesapeake Bay and river-estuarine systems. Load assessments and further data analysis will be presented in a final report after completion of the data-collection phase in April 1981. ACKNOWLEDGMENT The authors are grateful to Mr. Howard Jarmon and his staff of the Susquehanna Electric Co. for the cooperation and assistance received while sampling at Conowingo Dam on the Susquehanna River. HYDROLOGIC CONDITIONS The three primary sampling sites are: Susquehanna River at Cono- wingo, Md.; Potomac River at Chain Bridge at Washington, D.C.; and James River at Cartersville, Va. As the monitoring points on the Potomac and James Rivers are not located at the mouth of the rivers, the data at these sites do not directly reflect constituent input to Chesapeake Bay. How- ever, the data are representative of constituent concentrations and loads that are potentially available to the bay. Precipitation during the January 1979 to March 1980 period of data collection was 19 to 41 percent above average (table 1) . Some areas recorded in excess of 65 in. of rain in the 1979 calendar year. For the same period, streamflows at the sampling stations were 12, 46, and 37 percent above the historical mean flows for the Susquehanna, Potomac and James Rivers, as shown in the following table. 1979 calendar Long-term year average average Percent Station discharge discharge above (ft /s) (ft3/s) mean Susquehanna River at 38,400 34,250 12 Harrisburg, Pa. Potomac River at 16,630 11,390 46 Washington, D.C. James River at 9,688 7,046 37 Cartersville, Va. ------- O 00 CTl O 1-1 <0 O .p en IH to C (0 I u 14-1 w e 0) no •P < w •a 0) o 0) 0) w 4J (0 w 01 0 •H O •H -U to JJ •H O 0) -p C 0 s I .a to EH o 03 •a c c 0 •H JJ (0 1-J JJ w o k-l 0 w o •o c to 0) o o ra o •H JJ (0 0 .M -P (0 Q C JS 10 to •(-> -1-1 QJ C O S Q -P V-l 3 0) (0 £ 10 •P 4J C O O -P s 1-1 10 0) en 0) o o C J3 (0 (0 -P -P a; c o S 0 .P J3 •P C •o o o C £ 10 10 -P 4-> x: to •P JJ C 0 0 r^ m CM CM ^r CN CM r^ in CM en rH co l-~ 0 ro r~ in CN CN T CN CN CN CO rH * o r co •* r co - en r rH O VI VO VI CO •* 3 CN r CN rH CO CN CO CN rH CN Cn VO CO in VD CN r- i-H O CN eft co s in CO r- CN in in CN H VD CO 0 CO co •* co r~ co ^< ^r en o en M- •** CO CO oo CN CO CN CO vo en 00 CO o in m vo rH in o vo rH o rH Cft in en r- cn >1 M ro c (0 rj o co CTl February March (0 S s D ^1 rH D 1-3 -P W D tji < l-i 0) £ Q) -P a o 2 S-l 0) XI s 0) u OJ Q >i S-l to 3 C ro I'D >i V-l ro 3 IH XI 0) fa x; o ro S 00 VO 00 ro ro in CN • rH in oo in oo VO vo CN vo en vo •8 •8 iH *H CD >-i a, ------- DATA COLLECTION AND PRESENTATION Data-Collection Sites Figure 1 shows the location of the water-quality monitoring stations used in the study. The Susquehanna River station is at Conowingo Dam, Conowingo, Md., where, if flow conditions permit, base-flow water quality is measured every 2 weeks. The James River station is at Cartersville, Va. , and the Potomac River site is at Chain Bridge at Washington, D.C.; both are sampled monthly for base-flow water-quality constituents. The USGS continuously monitors stage and flow at the Cartersville and Conowingo sites. Potomac River flow is monitored at Little Falls, Md., half a mile upstream from Chain Bridge. Water samples analyzed for both sediment and chemical quality are taken at high flows at all sites to better understand the mechanisms that affect the water quality during these critical periods of high mass transport. Methods of Sample Collection and Analysis All water-quality and suspended-sediment samples were collected by USGS personnel by depth-integrating methods, as described by Guy and Norman (1970). All water-quality samples were preserved in the field according to methods described in the National Handbook of Recommended Methods for Water Data Acquisition (U.S. Geological Survey, 1977) and analyzed in the USGS Central Laboratory. Pesticide and organic carbon were determined according to methods described by Goerlitz and Brown (1972) , and inorganic constituents were analyzed according to procedures cited by Skougstad and others (1979). Sediment samples were analyzed in another USGS laboratory, by methods described by Guy (1969). Data Presentation Simple bivariate linear regressions were run for all constituents against discharge, specific conductance, and suspended sediment. The re- gression line was fitted analytically by the method of least squares. 2 The coefficient of determination (R ) was then calculated for each bivariate regression. This coefficient is a measure of the degree to which the variance or square of the standard deviation is explained or accounted for by the linear regression. The greater R is, the better the regression line fits the observed data points, and the more highly correlated one variable is to another. Table 2 contains a list of constituents whose coefficients of determination are greater than 0.50 and are derived from at least six data pairs. Coefficients of determination less than 0.50 were not considered significant because, below this value, less than 50 percent of the variation of the dependent variable is being explained by the independent variable. ------- >-• P FQ LU LU CJ > n O a: - O 3 E: o QL LU 2 LU Z) LU i— h- or < >-» < l_ <£ QT LU LU > -J or I-H OO 00 LU C^ E: LU < h- CO •-. < or 3 O h- < < 0 UJ 1— O 0 P O_ 1-1 m t— or • LU P > 2I ct: - o < o < 3 X O LU 2 Z) O Of O OO Z) 00 p =1 2 u s oO p Z> LU oo uO U J_ O LU 1-1 ZJ (_) U P Z LU 2 < 0_ O H- CO 0 1 LU a or _l 1— LL. 00 P U h- P 2 Z LU U £ Z) LU OO CO O »-« 1 LL O LU t- Z> 0 U P Z UJ 2 •< a. o i— CO U 1 < 3 LU O or _i h- LL CO p LU h- P 2 2 LU LU I£! Q_ i— i 00 P Z> UJ CO 00 O M J LL O LU f-H Z> <_> u p -z. 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La- El O P Q- LU LU 00 I— LL OO OT o LU a CiL U 00 O _J 00 _J Z) O > o a < u OO < ^ EI ;_ 1 ^ | -v— -v. O Z> Z) Z) — - O \ — LU LU CJ O Oh- PE:O co— _iz>o_JZ) _J— \ ^ <: LU — z>\^ LUpqpp — 00 LU — ' \— _l < LUPP— PQ-— -V.LLILUOLUCI •_! -^ O O >(jOC^Ei--'OLU lPP>PP OLUC^I — 1 — OLULUUJ — PcOCL<[ OLUUJZ)LULU(_)<"--.OUJOO UJ UJ LU > >— ' ^ 12 LULULULULU Qi O OOLU — 1 DT LU >— • •— • <_|^ Q<1_it_^H oOCL- o *-< z> o uoD_ -N. a. o i- E: s: uo (_ o — -I — — • < (—•->. en o p o p — o _i O 00 I— LO _l _J P +op°poo> a: s: s: -J ^_ _ ,_ |_ (/) ElsTOOl — h— f — P LO LULULULULULULUO OOOOOOOD- (— t— 1— (— (— 1— H-D 22222220- a. CO _i O CL E: o o h 5 o _i X < t— 1— O I — 00 CO 13 Z) o a Q_ Q- 0 O o_ a. a Q. O 5 _j < i — 00 ^) o Q_ o 0_ o E: — p LU P a. CO Z) OO 1— UJ E: LU OO 00 < _l o Z) -J < h- o 1— E: Z) 2 LU /L AS NA) ISSOLVED (MG/L AS NA ) 5 DEG. C, TOTAL {MG/L 0 DEG. C DISSOLVED (M EOUS (CFS) o p o co E; H H S 1- *- P Z> < < LU 1—1 > 00 LU UJ _J CO Z) Z) 0 < ft P 00 1— 1-1 i— i oo O oo co i— i CL LU UJ + s: E: oo co z> z> P P 2 f— i_ i— < 3 Q LL E: o 00 00 p fc LU 1— 2 LU PP oo <: pp o u Q: Z) LU LU 0 P P U LU LU LU > P a: _l 2 O LU —I 00 O_ < oO oO 1 — — Z) 0 .. >. » o o o z z z MMM ------- The data in table 2 demonstrate that there exists significant corre- lations between chemical constituents for which data are available on an infrequent, periodic basis, and streamflow, specific conductance, and sus- pended sediment for which continuous or once daily data are available. Along with continuous discharge record, these correlations can be used to provide accurate estimates of constituent loadings. Tables 3, 4, and 5 list the number of samples (n), maximum, minimum, mean, median, and standard deviation for all parameters collected through April 2, 1980. A compilation of all water-quality data, except pesticides, for the three stations is found in supplemental data A, B, and C. The data are from the 1979 and 1980 water years. Pesticide data collected in connection with the study are assembled in supplemental data D. Atrazine and 2,4-D were the two constituents detected most frequently; their concentrations were highest during summer runoff. Suspended-sediment concentrations and loads for the Potomac River at Chain Bridge and the Susquehanna River at Conowingo are found in supple- mental data E and F. Loads will not be tabulated for the James River station until more suspended-sediment information is available. Bottom material samples were collected approximately 1 mile down- stream from Conowingo Dam on the Susquehanna River, on November 3, 1979. Results of this analysis are found in supplemental data G. ------- TABLE 3.—BASIC STATISTICS OF WATER-QUALITY DATA FOR SUSQUEHANNA RIVER AT CONOWINGO, MARYLAND (01578310) WATSTORE/ STORET CODE 00410 01106 01107 01105 01000 01001 01002 01005 01006 01007 01025 01026 01027 00915 00691 00681 00689 00680 00690 70953 70954 00940 01030 01031 01034 01035 01036 01037 31625 01040 01041 01042 00950 00900 01046 01044 01045 01049 01050 01051 00925 01056 01054 01055 01067 00608 00610 00623 00625 00631 00630 00607 00605 00602 00600 00300 00400 70507 00666 00665 60050 00935 80154 00955 01075 00930 00500 70300 70301 00095 31673 00945 01090 01091 01092 NO. OF STAN- DARD ANAL- CONSTITUENT ALKALINITY (MG/L AS CAC03) ALUMINUM, DISSOLVED (UG/L AS AL) ALUMINUM, SUSPENDED RECOV. (UG/L AS AL) ALUMINUM, TOTAL RECOVERABLE (UG/L AS AL) ARSENIC, DISSOLVED (UG/L AS AS) ARSENIC, SUSPENDED TOTAL (UG/L AS AS) ARSENIC, TOTAL (UG/L AS AS) BARIUM, DISSOLVED (UG/L AS BA ) BARIUM, SUSPENDED RECOVERABLE (UG/L AS BA ) BARIUM, TOTAL RECOVERABLE (UG/L AS BA) CADMIUM, DISSOLVED (UG/L AS CD) CADMIUM, SUSPENDED RECOVERABLE (UG/L AS CD) CADMIUM, TOTAL RECOVERABLE (UG/L AS CD) CALCIUM, DISSOLVED (MG/L AS CA) CARBON, INORGANIC, DISSOLVED (MG/L AS C) CARBON, ORGANIC DISSOLVED (MG/L AS C) CARBON, ORGANIC SUSPENDED TOTAL (MG/L AS N) CARBON, ORGANIC TOTAL (MG/L AS C) CARBON, TOTAL (MG/L AS C) CHLOR-A, PHYTOPLANKTON (UG/L) CHLOR-B, PHYTOPLANKTON (UG/L) CHLORIDE, DISSOLVED (MG/L AS CD CHROMIUM, DISSOLVED (UG/L AS CR) CHROMIUM, SUSPENDED RECOV. (UG/L AS CR) CHROMIUM, TOTAL RECOVERABLE (UG/L AS CR) COBALT, DISSOLVED (UG/L AS CO) COBALT, SUSPENDED RECOVERABLE (UG/L AS CO) COBALT, TOTAL RECOVERABLE (UG/L AS CO) COLIFORM, FECAL, 0.7 UM-MF (COLS./100 ML) COPPER, DISSOLVED (UG/L AS CU) COPPER, SUSPENDED RECOVERABLE (UG/L AS CU) COPPER, TOTAL RECOVERABLE (UG/L AS CU) FLUORIDE, DISSOLVED (MG/L AS F) HARDNESS (MG/L AS CAC03) IRON, DISSOLVED (UG/L AS FE) IRON, SUSPENDED RECOVERABLE (UG/L AS FE ) IRON, TOTAL RECOVERABLE (UG/L AS FE) LEAD, DISSOLVED (UG/L AS PB) LEAD, SUSPENDED RECOVERABLE (UG/L AS PB ) LEAD, TOTAL RECOVERABLE (UG/L AS PB ) MAGNESIUM, DISSOLVED (MG/L AS MG) MANGANESE, DISSOLVED (UG/L AS MN ) MANGANESE, SUSPENDED RECOV. (UG/L AS MN ) MANGANESE, TOTAL RECOVERABLE (UG/L AS MN ) NICKEL, TOTAL RECOVERABLE (UG/L AS NI) NITROGEN, AMMONIA DISSOLVED (MG/L AS N) NITROGEN, AMMONIA TOTAL (MG/L AS N) NITROGEN, AMMONIA + ORGANIC DIS. (MG/L AS N) NITROGEN, AMMONIA + ORGANIC TOTAL (MG/L AS N) NITROGEN, N02 + N03 DISSOLVED (MG/L AS N) NITROGEN, N02 + N03 TOTAL (MG/L AS N) NITROGEN, ORGANIC DISSOLVED !MC/L AS N) NITROGEN, ORGANIC TOTAL (MG/L AS N) NITROGEN, DISSOLVED (MG/L AS N) NITROGEN, TOTAL (MG/L AS N) OXYGEN, DISSOLVED (MG/L) PH (UNITS) PHOSPHORUS, ORTHO. TOTAL (MG/L AS P) PHOSPHORUS, DISSOLVED (MG/L AS P) PHOSPHORUS, TOTAL (MG/L AS P) PHYTOPLANKTON, TOTAL (CELLS PER ML) POTASSIUM, DISSOLVED (MG/L AS K) SEDIMENT, SUSPENDED (MG/L) SILICA, DISSOLVED (MG/L AS SI02) SILVER, DISSOLVED (UG/L AS AG) SODIUM, DISSOLVED (MG/L AS NA ) SOLIDS, RESIDUE AT 105 DEG. C, TOTAL (MG/L) SOLIDS, RESIDUE AT 180 DEG. C DISSOLVED (MG/L) SOLIDS, SUM OF CONSTITUENTS, DISSOLVED (MG/L) SPECIFIC CONDUCTANCE (MICROMHOS) STREPTOCOCCI, FECAL, KF AGAR (COLS. PER 100/ML) SULFATE, DISSOLVED (MG/L AS S04) ZINC, DISSOLVED (UG/L AS ZN) ZINC, SUSPENDED RECOVERABLE (UG/L AS ZN ) ZINC, TOTAL RECOVERABLE (UG/L AS ZN) YSES 56 67 66 67 5 5 19 4 5 5 5 5 31 56 36 34 7 42 41 46 46 56 5 5 30 5 5 5 12 5 5 31 56 56 70 58 69 5 5 31 56 69 68 68 29 50 68 49 69 64 69 / /. 68 44 69 48 56 63 70 69 6 56 131 56 5 56 39 20 52 145 12 56 5 5 31 MEAN 32. 129. 937. 1090. 0. 0. 1. 17. 22. 30. 0. 4. 1. 20. 9. 3. 1. 3. 14. 6. 0. 9. 10. 4. 11. 1. 0. 1. 54. 1. 5. 5. 0. 73. 69. 1675. 1680. 1. 7. 70. 5. 120. 79. 200. 11. 0. 0. 0. 0. 1. 1. 0 . 0. 1. 1. 12. 7. 0. 0. 0. 12231. 1. 27. 3. 0. 6. 155. 126. 104. 215. 81. 35. 26. 6. 34. DEVI MINIMUM ATION 79 55 12 45 80 40 74 50 00 00 80 20 87 11 99 36 47 04 59 84 00 90 00 00 03 00 60 20 75 80 40 29 09 50 71 52 00 00 00 10 68 14 41 44 62 08 11 37 52 15 16 30 41 59 69 02 81 02 02 18 67 71 12 67 00 64 05 30 87 10 58 41 00 00 84 13. 134. 2167. 2139. 0. 0. 1. 20. 43. 44. 0. 8. 4. 7. 4. 1. 1. 1. 3. 5. 0. 3. 0. 8. 7. 1. 0. 1. 81. 0. 8. 4, 0. 27. 95. 3161. 2894. 2. 5. 321. 2. 86. 90. 139. 7. 0. 0. 0. 0. 0. 0. 0 . 0. 0. 0. 2. 0. 0. 0. 0. 15749. 0. 53. 1. 0. 2. 36. 45. 33. 45. 120. 14. 27. 5. 27. 45 23 78 55 84 55 52 62 82 72 84 29 37 11 53 60 05 52 18 27 00 22 00 94 95 00 89 30 35 45 96 47 04 32 67 10 47 24 15 93 33 20 24 58 13 06 07 15 25 29 31 13 22 37 38 59 31 02 02 82 86 33 82 42 00 42 17 83 49 95 28 20 02 48 91 VALUE 0 0 0 0 0 0 0 0 0 0 0 0 0 9 1 1 0 1 10 0 0 3 10 0 0 0 0 0 1 1 0 2 0 33 0 0 20 0 2 0 2 0 0 50 2 0 0 0 0 0 0 C 0 0 0 5 7 0 0 0 390 1 1 0 0 2 96 64 53 110 1 17 0 0 0 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .30 .70 .00 .30 .30 .00 .00 .00 .40 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .40 .00 .00 .00 .00 .00 .00 .10 .08 .53 .56 .06 .06 .75 .95 .20 .05 .00 .00 .01 .00 .20 .00 .10 .00 .90 .00 .00 .00 .00 .00 .00 .00 .00 .00 MAXIMUM VALUE 59. 600. 12000. 12000. 2. 1. 6. 40. 100. 100. 2. 19. 20. 33. 24. 7. 2. 7. 25. 18. 0. 16. 10. 20. 30. 2. 2. 3. 230. 2. 21. 23. 0. 120. 690. 15000. 15000. 5. 15. 1800. 10. 400. 700. 1100. 29. 0. 0. 0. 1. 1. 1. 0. 1. 2. 2. 15. 8. 0. 0. 6. 41000. 2. 454. 6. 0. 11. 250. 213. 173. 335. 360. 65. 70. 10. 120. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 80 60 00 40 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 24 31 61 50 80 90 53 20 50 50 40 40 08 11 90 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00 MEDIAN 30.50 100.00 330.00 600.00 1.00 0.00 1.00 15.00 1.00 0.00 1.00 0.00 0.00 18.50 10.00 2.95 1.50 2.45 15.00 6.06 0.00 9.20 10.00 0.00 <10.00 1.00 0.00 1.00 10.00 2.00 1.00 4.00 0.10 67.00 50.00 445.00 620.00 0.00 7.00 5.00 5.00 130.00 70.00 180.00 10.00 0.06 0.10 0.36 0.50 1.10 1.10 0.30 0.38 1.60 1.60 12.80 7.90 0.02 0.02 0.06 5050.00 1.60 15.00 4.10 0.00 6.20 157.00 115.00 98.00 220.00 15.50 33.00 20.00 10.00 30.00 ------- TABLE 4.—BASIC STATISTICS OF WATER-QUALITY DATA FOR THE POTOMAC RIVER AT CHAIN BRIDGE AT WASHINGTON, B.C. (01646580) WATSTORE STORET CODE 00410 01106 01107 01105 01000 01001 01002 01005 01006 01007 01025 01026 01027 00915 00691 00681 00689 00680 00690 70953 70954 00940 01030 01031 01034 01035 01036 01037 31625 01040 01041 01042 00950 00900 01046 01044 01045 01049 0105C 01051 00925 01056 01054 01055 01067 00608 00610 00623 00625 00631 00630 00607 00605 00602 00600 00300 00400 70507 00666 00665 60050 00935 80154 00955 01075 00930 00500 70300 70301 00095 31673 00945 01090 01091 01092 / OF ANAL- CONSTITUENT YSES ALKALINITY (MG/L AS CAC03) ALUMINUM, DISSOLVED (UG/L AS AD ALUMINUM, SUSPENDED RECDV. (UG/L AS AL) ALUMINUM, TOTAL RECOVERABLE (UG/L AS AL) ARSENIC, DISSOLVED (UG/L AS AS) ARSENIC, SUSPENDED TOTAL (UG/L AS AS) ARSENIC, TOTAL (UG/L AS AS) BARIUM, DISSOLVED (UG/L AS BA ) BARIUM, SUSPENDED RECOVERABLE (UG/L AS BA) BARIUM, TOTAL RECOVERABLE (UG/L AS BA) CADMIUM, DISSOLVED (UG/L AS CD) CADMIUM, SUSPENDED RECOVERABLE (UG/L AS CD) CADMIUM, TOTAL RECOVERABLE (UG/L AS CD) CALCIUM, DISSOLVED (MG/L AS CA) CARBON, INORGANIC, DISSOLVED (MG/L AS C) CARBON, ORGANIC DISSOLVED (MG/L AS C) CARBON, ORGANIC SUSPENDED TOTAL (MG/L AS N) CARBON, ORGANIC TOTAL (MG/L AS C) CARBON, TOTAL (MG/L AS C) CHLOR-A, PHYTOPLANKTON (UG/L) CHLOR-B, PHYTOPLANKTON (UG/L) CHLORIDE, DISSOLVED (MG/L AS CD CHROMIUM, DISSOLVED (UG/L AS CR) CHROMIUM, SUSPENDED RECOV. (UG/L AS CR) CHROMIUM, TOTAL RECOVERABLE (UG/L AS CR) COBALT, DISSOLVED (UG/L AS CO) COBALT, SUSPENDED RECOVERABLE (UG/L AS CO) COBALT, TOTAL RECOVERABLE (UG/L AS CO) COLIFORM, FECAL, 0.7 UM-MF (COLS./100 ML) COPPER, DISSOLVED (UG/L AS CU) COPPER, SUSPENDED RECOVERABLE (UG/L AS CU) COPPER, TOTAL RECOVERABLE (UG/L AS CU) FLUORIDE, DISSOLVED (MG/L AS F) HARDNESS (MG/L AS CAC03) IRON, DISSOLVED (UG/L AS FE) IRON, SUSPENDED RECOVERABLE (UG/L AS FE ) IRON, TOTAL RECOVERABLE (UG/L AS FE ) LEAD, DISSOLVED (UG/L AS PB ) LEAD, SUSPENDED RECOVERABLE (UG/L AS PB ) LEAD, TOTAL RECOVERABLE (UG/L AS PB) MAGNESIUM, DISSOLVED (MG/L AS MG) MANGANESE, DISSOLVED IUG/L AS MN ) MANGANESE, SUSPENDED RECOV. (UG/L AS MN ) MANGANESE, TOTAL RECOVERABLE (UG/L AS MN ) NICKEL, TOTAL RECOVERABLE (UG/L AS NI) NITROGEN, AMMONIA DISSOLVED (MG/L AS N) NITROGEN, AMMONIA TOTAL (MG/L AS N) NITROGEN, AMMONIA + ORGANIC DIS. (MG/L AS N) NITROGEN, AMMONIA + ORGANIC TOTAL (MG/L AS N) NITROGEN, N02 + N03 DISSOLVED (MG/L AS N) NITROGEN, N02 + N03 TOTAL (MG/L AS N) NITROGEN, ORGANIC DISSOLVED (MG/L AS N) NITROGEN, ORGANIC TOTAL (MG/L AS N) NITROGEN, DISSOLVED (MG/L AS N) NITROGEN, TOTAL (MG/L AS N) OXYGEN, DISSOLVED (MG/L) PH (UNITS) PHOSPHORUS, ORTHO. TOTAL (MG/L AS P) PHOSPHORUS, DISSOLVED (MG/L AS P) PHOSPHORUS, TOTAL (MG/L AS P) PHYTOPLANKTON, TOTAL (CELLS PER ML) POTASSIUM, DISSOLVED (MG/L AS K) SEDIMENT, SUSPENDED (MG/L) SILICA, DISSOLVED (MG/L AS SI02) SILVER, DISSOLVED (UG/L AS AG) SODIUM, DISSOLVED (MG/L AS NA) SOLIDS, RESIDUE AT 105 DEG. C, TOTAL (MG/L) SOLIDS, RESIDUE AT 180 DEG. C DISSOLVED (MG/L) SOLIDS, SUM OF CONSTITUENTS, DISSOLVED (MG/L) SPECIFIC CONDUCTANCE (MICROMHOS) STREPTOCOCCI, FECAL, KF AGAR (COLS. PER 100/ML) SULFATE, DISSOLVED (MG/L AS S04) ZINC, DISSOLVED (UG/L AS ZN) ZINC, SUSPENDED RECOVERABLE (UG/L AS ZN ) ZINC, TOTAL RECOVERABLE (UG/L AS ZN) 38 35 34 34 6 5 11 4 5 6 6 5 17 38 26 32 11 28 24 28 28 38 6 6 17 6 5 6 18 6 6 17 38 38 36 32 34 16 16 27 38 36 35 35 16 30 40 37 42 34 40 26 40 28 40 17 29 31 41 42 7 38 290 40 6 38 25 22 38 36 18 38 6 6 17 MEAN 63 101 3563 3647 1 0 1 42 60 66 3 0 0 26 14 4 2 7 25 25 0 9 13 8 13 0 4 4 855 1 7 6 0 91 58 7153 6905 7 23 23 5 9 304 313 10 0 0 0 0 1 1 0 0 1 2 10 8 0 0 0 23512 2 158 5 0 7 326 160 126 238 5501 27 17 35 32 .39 .43 .82 .65 .00 .40 .18 .50 .00 .67 .00 .40 .47 .87 .18 .07 .96 .35 .46 .41 .56 .42 .33 .33 .06 .67 .60 .33 .11 .33 .50 .06 .12 .34 .92 .12 .29 .19 .81 .59 .87 .83 .60 .71 .12 .05 .14 .46 .93 .18 .24 .50 .82 .79 .20 .88 .16 .05 .05 .23 .86 .28 .23 .08 .00 .96 .24 .86 .42 .86 .61 .21 .00 .00 .94 DARD DEVI- ATION 24. 92. 4429. 4384. 0. 0. 0. 41. 89. 81. 4. 0. 0. 9. 6. 1. 5. 4. 6. 27. 1. 4. 10. 7. 9. 0. 8. 7. 2580. 1. 12. 7. 0. 33. 53. 8909. 8695. 14. 32. 30. 2. 6. 339. 337. 9. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 2. 0. 0. 0. 0. 39536. 0. 222. 2. 0. 4. 256. 51. 43. 72. 19669. 13. 31. 25. 32. 38 55 42 08 63 55 87 93 44 65 56 89 87 35 21 65 72 98 76 82 86 53 33 53 56 82 23 34 37 03 02 67 10 00 62 68 33 82 72 17 35 92 50 40 62 07 24 31 82 40 36 31 71 52 95 31 29 05 04 25 81 79 97 10 00 67 30 33 93 87 10 14 21 88 93 MINIMUM MAXIMUM VALUE 29 30 0 80 0 0 0 0 0 0 0 0 0 13 1 2 0 1 19 0 0 4 0 0 0 0 0 0 1 0 0 0 0 43 0 10 70 0 0 0 2 0 1 10 1 0 0 0 0 0 0 0 0 0 1 6 7 0 0 0 190 1 2 0 0 3 115 70 63 135 2 11 0 0 10 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .80 .10 .20 .60 .00 .00 .00 .50 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .50 .00 .00 .00 .00 .00 .00 .06 .08 .39 .41 .03 .06 .80 .10 .70 .40 .00 .00 .00 .00 .20 .00 .20 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 VALUE 140 400 15000 15000 2 1 3 100 200 200 12 2 3 58 24 8 20 25 52 81 8 25 30 20 40 2 19 19 11000 3 31 34 0 200 270 30000 30000 60 120 130 13 30 1200 1200 30 0 0 1 3 1 2 1 2 2 4 14 8 0 0 1 110000 4 1169 8 0 26 1030 306 284 450 84000 74 80 70 150 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .10 .00 .00 .00 .00 .79 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .70 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .31 .90 .10 .50 .90 .00 .10 .60 .90 .70 .20 .70 .23 .17 .00 .00 .30 .00 .40 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 MEDIAN 61.00 60.00 1600.00 1850.00 1.00 0.00 1.00 35.00 0.00 50.00 1.50 0.00 0.00 25.00 14.50 3.80 1.30 5.75 24.50 15.65 0.00 7.65 10.00 10.00 10.00 .50 0.00 1.50 60.00 1.00 3.00 4.00 0.10 86.00 45.00 2750.00 2800.00 2.00 9.00 10.00 5.35 8.50 170.00 190.00 6.00 0.02 0.06 0.39 0.60 1.30 1.30 0.41 0.56 1.70 2.00 10.80 8.10 0.04 0.04 0.12 3500.00 1.85 46.00 5.85 0.00 7.25 209.00 153.50 120.00 220.00 270.00 24.50 6.00 40.00 30.00 ------- TABLE 5.—BASIC STATISTICS OF WATER-QUALITY DATA FOR THE JAMES RIVER AT CARTERSVILLE, VIRGINIA (02035000) WATSTORE/ STORET CODE 00410 01106 01107 01105 01000 01001 01002 01005 01006 01007 01025 01026 01027 00915 00691 00681 00689 00680 00690 70953 70954 00940 01030 01031 01034 01035 01036 01037 31625 01040 01041 01042 00950 00900 01046 01044 01045 01049 01050 01051 00925 01056 01054 01055 01067 00608 00610 00623 00625 00631 00630 00607 00605 00602 00600 00300 00400 70507 00666 00665 60050 00935 80154 00955 01075 00930 00500 70300 70301 00095 31673 00945 01090 01091 01092 CONSTITUENT ALKALINITY (MG/L AS CAC03) ALUMINUM, DISSOLVED (UG/L AS AL) ALUMINUM, SUSPENDED RECOV. (UG/L AS AL) ALUMINUM, TOTAL RECOVERABLE (UG/L AS AL) ARSENIC, DISSOLVED (UG/L AS AS) ARSENIC, SUSPENDED TOTAL (UG/L AS AS) ARSENIC, TOTAL (UG/L AS AS) BARIUM, DISSOLVED (UG/L AS BA ) BARIUM, SUSPENDED RECOVERABLE (UG/L AS BA ) BARIUM, TOTAL RECOVERABLE (UG/L AS BA ) CADMIUM, DISSOLVED (UG/L AS CD) CADMIUM, SUSPENDED RECOVERABLE (UG/L AS CD) CADMIUM, TOTAL RECOVERABLE (UG/L AS CD) CALCIUM, DISSOLVED (MG/L AS CA) CARBON, INORGANIC, DISSOLVED (MG/L AS C) CARBON, ORGANIC DISSOLVED (MG/L AS C) CARBON, ORGANIC SUSPENDED TOTAL (MG/L AS N) CARBON, ORGANIC TOTAL (MG/L AS C) CARBON, TOTAL (MG/L AS C) CHLOR-A, PHYTOPLANKTON (UG/L) CHLOR-B, PHYTOPLANKTON (UG/L) CHLORIDE, DISSOLVED (MG/L AS CD CHROMIUM, DISSOLVED (UG/L AS CR) CHROMIUM, SUSPENDED RECOV. (UG/L AS CR) CHROMIUM, TOTAL RECOVERABLE (UG/L AS CR) COBALT, DISSOLVED (UG/L AS CO) COBALT, SUSPENDED RECOVERABLE (UG/L AS CO) COBALT, TOTAL RECOVERABLE (UG/L AS CO) COLIFORM, FECAL, 0.7 UM-MF (COLS./100 ML) COPPER, DISSOLVED (UG/L AS CU) COPPER, SUSPENDED RECOVERABLE (UG/L AS CU) COPPER, TOTAL RECOVERABLE (UG/L AS CU) FLUORIDE, DISSOLVED (MG/L AS F) HARDNESS (MG/L AS CAC03) IRON, DISSOLVED (UG/L AS FE) IRON, SUSPENDED RECOVERABLE (UG/L AS FE ) IRON, TOTAL RECOVERABLE (UG/L AS FE ) LEAD, DISSOLVED (UG/L AS PB ) LEAD, SUSPENDED RECOVERABLE (UG/L AS PB ) LEAD, TOTAL RECOVERABLE (UG/L AS PB) MAGNESIUM, DISSOLVED (MG/L AS MG) MANGANESE, DISSOLVED (UG/L AS MN ) MANGANESE, SUSPENDED RECOV. (UG/L AS MN ) MANGANESE, TOTAL RECOVERABLE (UG/L AS MN 1 NICKEL, TOTAL RECOVERABLE (UG/L AS NI) NITROGEN, AMMONIA DISSOLVED (MG/L AS N) NITROGEN, AMMONIA TOTAL (MG/L AS N) NITROGEN, AMMONIA + ORGANIC DIS. (MG/L AS N) NITROGEN, AMMONIA + ORGANIC TOTAL (MG/L AS N) NITROGEN, N02 + N03 DISSOLVED (MG/L AS N) NITROGEN: N02 + NOB TOTAL (MG/L A S N) NITROGEN, ORGANIC DISSOLVED (MG/L AS N) NITROGEN, ORGANIC TOTAL (MG/L AS N) NITROGEN, DISSOLVED (MG/L AS N) NITROGEN, TOTAL (MG/L AS N) OXYGEN, DISSOLVED (MG/L) PH (UNITS) PHOSPHORUS, ORTHO. TOTAL (MG/L AS P) PHOSPHORUS, DISSOLVED (MG/L AS P) PHOSPHORUS, TOTAL (MG/L AS P) PHYTOPLANKTON, TOTAL (CELLS PER ML) POTASSIUM, DISSOLVED (MG/L AS K) SEDIMENT, SUSPENDED (MG/L) SILICA, DISSOLVED (MG/L AS SI02) SILVER, DISSOLVED (UG/L AS AG) SODIUM, DISSOLVED (MG/L AS NA) SOLIDS, RESIDUE AT 105 DEC. C, TOTAL (MG/L) SOLIDS, RESIDUE AT 180 DEC. C DISSOLVED (MG/L) SOLIDS, SUM OF CONSTITUENTS, DISSOLVED (MG/L) SPECIFIC CONDUCTANCE (MICROMHOS) STREPTOCOCCI, FECAL, KF AGAR (COLS. PER 100/ML) SULFATE, DISSOLVED (MG/L AS 504) ZINC, DISSOLVED (UG/L AS ZN ) ZINC, SUSPENDED RECOVERABLE (UG/L AS ZN ) ZINC, TOTAL RECOVERABLE (UG/L AS ZN) NO. OF ANAL- YSES 24 21 15 17 7 3 7 7 5 6 7 6 9 24 13 18 5 21 14 7 7 24 7 6 6 7 6 7 17 7 7 9 24 24 23 19 23 7 7 9 24 25 25 25 5 16 30 28 30 17 30 15 30 16 30 30 32 21 30 30 7 24 53 24 7 24 11 19 24 32 17 24 7 7 9 STAN- DARD MEAN 43. 211. 1033. 1159. 1. 1. 1. 42. 50. 66. 1. 1. 1. 15. 11. 5. 1. 3. 15. 2. 0. 7. 8. 15. 23. 0. 1. 1. 716. 3. 3. 5. 0. 53. 90. 2548. 3247. 2. 5. 6. 3. 5. 82. 87. 4. 0. 0. 0. 0. 0. 0 - 0. 0. 0. 0. 10. 7. 0. 0. 0. 3951. 1. 202. 7. 0. 5. 98. 87. 78. 137. 765. 9. 7. 37. 43. DEVI MINIMUM ATION 62 14 33 65 00 33 86 86 00 67 00 00 22 80 22 38 34 56 78 62 00 89 57 00 33 57 17 42 53 43 43 67 09 29 00 42 83 14 71 44 38 60 84 60 40 02 04 26 43 29 37 33 39 63 80 91 20 05 05 12 14 88 00 58 00 31 73 63 96 78 65 98 28 14 33 12. 131. 1625. 1583. 1. 2. 1. 29. 86. 81. 0. 1. 1. 4. 1. 3. 1. 1. 1. 2. 0. 5. 6. 10. 15. 0. 1. 1. 1269. 2. 3. 2. 0. 15. 60. 3891. 4539. 1. 6. 6. 0. 4. 105. 105. 2. 0. 0. 0. 0. 0. 0 * 0. 0. 0. 0. 1. 0. 0. 0. 0. 7222. 1. 140. 0. 0. 3. 51. 25. 23. 46. 1179. 3. 7. 20. 18. 79 28 10 68 41 31 77 84 60 65 58 26 30 74 95 99 90 76 84 75 00 71 90 49 06 53 60 90 37 99 64 96 03 39 60 67 61 95 92 39 97 75 73 76 51 02 05 26 29 06 35 32 28 33 51 89 48 04 03 10 74 28 00 94 00 51 31 02 85 31 57 57 09 59 71 VALUE 21. 4. 0. 4. 0. 0. 0. 0. 0. 0. 0. 0. 0. 8. 8. 1. 0. 1. 12. 0. 0. 3. 0. 0. 10. 0. 0. 0. 9. 1. 0. 3. 0. 29. 10. 210. 290. 0. 0. 0. 1. 0. 2. 10. 2. 0. 0. 0. 0. 0. n _ 0. 0. 0. 0. 7. 6. 0. 0. 0. 43. 0. 2. 6. 0. 2. 34. 63. 49. 75. 11. 6. 0. 20. 20. 00 00 00 00 00 00 00 00 00 00 00 00 00 40 30 20 20 60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90 00 00 00 00 00 00 04 00 15 03 07 00 32 23 70 30 02 02 04 00 90 00 00 00 50 00 00 00 00 00 90 00 00 00 MAXIMUM VALUE 67. 600. 6300. 6700. 3. 4. 4. 100. 200. 200. 2. 3. 4. 31. 14. 16. 4. 7. 19. 6. 0. 28. 20. 30. 50. 1. 4. 5. 4100. 10. 8. 11. 0. 100. 300. 14000. 14000. 5. 19. 21. 5. 20. 340. 350. 7. 0. 0. 1. 1. 0. 2. 1. 1. 1. 2. 14. 8. 0. 0. 0. 20000. 7. 449. 9. 0. 16. 236. 149. 149. 303. 3900. 21. 20. 70. 80. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70 70 00 26 00 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 90 00 00 00 00 06 23 30 40 37 10 30 30 60 80 10 60 19 15 48 00 00 00 50 00 00 00 00 00 00 00 00 00 00 00 MEDIAN 42.00 200.00 400.00 600.00 0.00 0.00 1.00 40.00 0.00 50.00 1.00 0.00 1.00 16.00 11.00 4.10 0.70 2.70 16.00 2.12 0.00 6.00 10.00 15.00 10.00 1.00 0.00 1.00 61.00 3.00 3.00 5.00 0.10 53.00 80.00 1000.00 1100.00 2.00 2.00 5.00 3.20 4.00 30.00 40.00 4.00 0.01 0.03 0.16 0.34 0.28 0.29 0.27 0.30 0.48 0.62 10.90 7.25 0.03 0.04 0.09 1400.00 1.40 234.00 7.60 0.00 4.45 86.00 77.00 72.50 132.00 92.00 9.00 8.00 30.00 40.00 10 ------- REFERENCES Goerlitz, D. F., and Brown, Eugene, 1972, Methods for analysis of organic substances in water: U.S. Geological Survey Techniques of Water-Re- sources Investigations, Book 5, Chapter A3, 40 p. Guy, H. P., 1969, Laboratory theory and methods for sediment analysis: U.S. Geological Survey Techniques of Water-Resources Investigations, Book 5, Chapter Cl, 58 p. Guy, H. P., and Norman, U. W. , 1970, Field methods for measurement of fluvial sediment: U.S. Geological Survey Techniques of Water-Re- sources Investigations, Book 3, Chapter C2, 59 p. National Oceanic and Atmospheric Administration, 1979 (v. 82), 1980 (v. 83), Climatological data for Maryland; temperature and precipitation extremes: National Oceanic and Atmospheric Administration, v. 82, nos. 1-12; v. 83, nos. 1-3 [no. 3, in press]. National Oceanic and Atmospheric Administration, 1979 (v. 84) , 1980 (v. 85) , Climatological data for Pennsylvania; temperature and precipi- tation extremes: National Oceanic and Atmospheric Administration v. 84, nos. 1-12; v. 85, nos. 1-3 [no. 3, in press]. National Oceanic and Atmospheric Administration, 1979, (v. 82), 1980 (v. 83), Climatological data for Virginia; temperature and precipita- tion extremes: National Oceanic and Atmospheric Administration, v. 82, nos. 1-12; v. 83, nos. 1-3 [no. 3, in press]. Skougstad, M. W. , Fishman, M. J., Friedman, L. C. , Erdmann, D. E. , and Duncan, S. S., 1979, Methods for determination of inorganic substances in water and fluvial sediments: U.S. Geological Survey Techniques of Water-Resources Investigations, Book 5, Chapter Al, 626 p. U.S. Geological Survey, 1977, National handbook of recommended methods for water-data acquisition: U.S. Geological Survey, Office of Water- Data Coordination. Wetzel, R. G., 1975, Limnology: New York, W. B. Saunders, 743 p. 11 ------- 12 ------- SUPPLEMENTAL DATA 13 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310) TIMt DATE NOV , 03.., 28... 28.. . DEC 21... 21... JAN , 10... 10... 25... 25... 29... 29... FEH Ib. ., 16. .. 28. .. MAR 07... 08... 09.., 12... 13... 28... APR 11.., 23.., MAY OH.., 22... JUN 06. .. 2b... JUL 10.., 24.. AUG 08.. , 17.., :>EP 04. . , 08. ., 19.. 19... 19.., 197* 1979 Ills 1030 1100 1000 1100 1 1030 1115 1330 1430 lOlb Ills 1000 1030 094b 1700 1630 1500 1600 1500 1000 1200 1230 1200 1100 1500 1030 1130 1200 1200 1230 1100 1700 0815 1015 1215 1415 1615 1915 SAMPLE LOC- ATION, CROSS SECTION (* FROM L SANK) (00002) _, 25 75 75 25 75 25 75 25 75 25 75 2b — — -- — -- -- — — — — — — __ — — — — — — — — — — — SPE- COLI- STREP- CIFIC FORM, TOCOCCI STREAM- CON- FECAL, FECAL, FLOW, DUCT- TEMPER- TDK- OXYGEN, 0.7 KF AGAR INSTAN- ANCE PH ATURE, TEMPER- BID- PIS- UM-MF (COLS. TANEOUS (MICRO- AIR ATURE I T V SOLVED (COLS./ PER (CFS) MHOS) (UNITS) (DEC, C) (DEG C) (NTU) CMI5/L) 100 ML) 100 ML) (OOObl) (00095) (00400) (00020) (00010) (00076) (00300) (31625) (31673) 61000 63500 63200 71300 70600 102000 120JOO 285000 365000 172000 158000 49200 48300 179000 448000 396000 305000 171000 159000 15?000 84200 78500 70100 57200 79600 46300 39600 57200 34300 53000 29800 57100 13100 39800 40300 48400 31900 23400 315 310 310 205 ?10 140 165 205 205 155 100 210 255 155 125 110 115 145 160 190 180 185 ?20 240 180 240 310 300 335 315 ?78 2bO ->30 230 225 225 235 — fl.O =1.0 7.9 8.0 7.7 7.9 7.5 7.7 H.I 8.2 7.7 7.5 7.3 7.1 7.9 7.9 7.7 8.1 8.0 B.I 7.8 3.0 8.4 7.fi 8.1 7.7 7.9 7.7 7.6 7.9 8.1 -- 7.9 7.7 7.6 7.8 7.5 — 14.0 4.0 4.0 7.0 7.0 -.5 — 3.5 3.5 7.0 7.0 -5.0 -5.0 5.5 7.0 8.0 11.0 5.5 10.0 6.U 13.1 24.1 25.2 20.5 23.3 22.0 25.0 28.2 31.0 24.5 26.3 — 20.0 21.5 18.0 22.0 21.0 — 13.5 9.5 9.5 3.0 3.0 1.0 1.0 1.5 1.5 1.5 1.5 1.0 1.5 1.0 4.5 5.0 5.5 4.5 4.0 7^0 10 9.0 14.2 5.0 18.5 21.2 3.0 20.3 24.0 4.0 24.0 28.0 3.0 29.0 24.0 4.0 27.5 89 — -_ — 22.0 22. i) 22.0 — 9.3 10.0 10.0 1 3.0 13.0 14.6 14.9 15.4 15.2 14.4 14.6 13.6 13.5 14.5 11.6 13.0 13.8 13.7 11.6 12. b — 10.8 10.2 — — — 5.3 5.2 6.1 — 7.8 -- — — — — — — — — — — — — — — — — — — — — — — — — — — 200 210 — — — K3 56 — K.4 K19 — K4 K8 — K4 K12 K16 <1 — — — — — — -- K Results based on colony count outside the acceptable range (non-ideal colony count). 14 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued OCT U3. 12. le. 31. 31 . '------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued HARD- MAGNE- SODIUM POTAS- CrtLO- riAKU- MESS, CALCIUM SIUM, SOOIUM, AD- SIUM, ALKA- SULFATE HIDE, 'ESS (MONCAR- DIS- DIS- DIS- SORP- DIS- UNITY DIS- OIS- (MG/L BONATE SOLVED SOLVED SOLVED TION SOLVED (MG/L SOLVED SOLVED AS (MG/L (MG/L (MG/L (MG/L SOuIUM RATIO (MG/L AS (MG/L (MG/L DATE I.AC03) CAC03) AS CA) AS «G) AS NA ) PERCENT AS K) CAC03) AS S04) AS CD (OOSOO) (00902) (00915) (009251 (00930) (00932) (00931) (00935) (00410) (00945) (00940) MOV , 1978 09... 2H... ZH... DEC 21... 21... JAN , 1979 1 0 ... 10... 25... 25... 29... 29... 16. . . Ib... 28... MAK 07... 08. .. 09. .. 12... 13... 28... APR 11... 23... MAY OH. . . 22... JUN Ob... 26... JUL 10... 24... AUG 08. .. 17. .. SEP 04. . . OH. .. 19... 19... 19... 19... 19... 19... 120 120 12H 68 68 58 ol 59 58 44 47 92 «8 43 35 33 36 47 50 66 — 64 — 90 — 100 — 120 — 120 110 110 -- — — — -- — -- — -- 37 37 35 38 34 32 24 28 52 49 21 18 21 18 26 50 36 — 29 -- 4y — 59 -- 65 -- 68 62 59 — -- — — — — 33 31 31 19 19 16 1 7 16 16 12 13 25 24 12 10 9.3 10 13 14 18 — 18 — 24 -- 28 -- 33 — 32 29 2d -- -- — — — — 10 9.5 9.4 b.l 5.0 4.4 4.6 4.6 4.3 3.5 3.5 7.2 6.9 3.1 2.5 2.4 2.7 3.6 3.7 5.0 — 4.6 — 7.3 — 7.9 — 10 — 9.8 8.9 9.0 — — — — — — 10 11 11 6.? 6.3 5.3 5.4 8.5 8.6 6.0 5. 1 7.6 7.3 5.1 3.7 2.9 3.2 3.6 3.3 4.9 — 4.5 — 7.1 — 7.3 — 9.8 — 11 9.4 9.5 — -- — — -- — 15 1 J 17 Ib 16 16 Ib 23 24 22 IS- IS 15 2------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued HARD- '<------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATE .NOV , 09. . . 28. .. 28... DEC 21... 21... JAN , 1 0 ... 10... 25... 25... 29. . . 29... 16. .. 16... 28. .. MAR 07... 08... 09... 12... 13... 23... APR 11... 23... MAY 08... 22... JUN 06... 26... JUL 10... 24... AUG 08... 17... SEP 04... OH. . . 19... 19... 19... 19... I-*... 19... FLUO- MlDE, DIS- SOLVED (MG/L AS F) (U0950) 197K .1 .1 .1 .1 .1 1979 .0 .0 .1 .1 .1 .1 .1 .1 .1 .0 .0 .1 .1 .0 .0 — .1 — .1 — .1 — .? — .1 .1 .1 — — — — — — SILICA, DIS- SOLVED (MG/L AS SI02) (00955) .1 .6 .5 4.7 4. 7 4.8 4.8 4.3 4.2 4.2 4.3 6.0 5.9 3.2 3.8 4.0 4.2 4.5 4.5 5.1 — 3.9 -- .5 — 1.9 — 2.0 — 3.6 2.5 2.1 — — — — — — SOL I OS, RESIDUE AT lao DEG. C DIS- SOLVED (MG/L) (70300) -- — — — -- -- — -- -- -- -- — — — -- — — — -- 99 -- 98 — 147 — 183 — 213 — 205 181 — — — — — — — SOLIDS, SUM OF CONSTI- TUENTS, DIS- SOLVED (MG/L) (70301) — -- -- 1U4 103 84 87 98 98 76 74 135 130 69 59 53 61 73 b4 93 — 91 — 118 — 133 — 172 — 173 147 149 — — — — — — SOLIDS, DIS- SOLVED (TONS PER AC-FT) (70303) -- — -- .14 .14 .1 1 .12 .13 .13 .10 .10 .18 .18 .09 .08 .07 .08 .10 .09 .13 -- .13 -- .20 -- .25 -- .29 -- .28 .25 .20 -- -- -- -- -- -- SOLIDS. DIS- SOLVED (TONS PER DAY) (70302) — — — 20000 19600 23100 28200 75400 96600 35300 31600 17900 17000 33300 71400 56700 30200 33700 27500 40600 — 20ROO — 22700 — 22900 -- J2900 -- 29300 14600 23000 — — — — — — SOLIDS, RESIDUE AT 105 DEG. C, TOTAL (MG/L) (00500) -- — — — -- — — — -- — — -_ -- -- -- -- — -- -- 126 114 110 145 162 127 185 216 221 250 238 -- 198 171 166 159 165 160 170 NITRO- GEN, NITRATE TOTAL (MG/L AS N) (00620) — .79 .77 1.1 1.1 1.2 1.2 1.2 .99 .9<» .95 1.6 1.5 .89 .66 -- — — .95 — 1.2 — .56 -- .95 — .58 — — .74 -- .67 .95 .96 .96 .96 .96 .96 NITRO- GEN, NITPATE DIS- SOLVED (MG/L AS N) (00618) .77 — -- — — — — — — — — — — — — -- — — — — .99 — .56 — .97 — .60 — .91 .70 -- .49 — 1.1 .97 1.1 .98 .94 NITRO- GEN, NITPATE DIS- SOLVED (MG/L AS N03) (71851) 3.4 — — — — -- — — — — — — — -- — — — — — — 4.4 — 2.5 — 4.3 — 2.7 — 4.0 3.1 — 2.2 — 4.7 4.3 4.7 4.3 4.2 NITRO- GEN, NITRITE TOTAL (MG/L AS N) (0061s) -- .02 .02 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .02 .02 — — -- .01 — .01 -- .02 -- .02 — .11 — — .05 — .07 .04 .04 .04 .04 .04 .04 18 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATE OCT , 01... 12... lo... 31... MOV C i. . . U... ?9... 3D... jl>... DEL 0 1 . . . 01 . . . 11... JAN , m... lb... 29... FE'i 1?... 14... IS... IS... IS.. . ?r... MA 4 10... ?n... £1... 2?... 22... 23... 23... 23... 23... 24... APR 02... Od. . . 02... n2... F-LUO- «1DE, DIS- SOLVE I) IMG/L » b F ) (Mi) 950) 197-. — -- .1 .1 — .1 -- -- — . 1 .1 .1 I'Kd'i .1 .1 .1 .2 .1 . 1 . 1 .1 . 1 .1 .1 .1 .1 .1 .1 .1 .1 . 1 .1 .1 .1 .1 .1 SILICA, DIS- SOLVED (MG/L AS SI02) (00955) — — 5.9 3.3 — 4.9 — -- — 4.4 4.1 5.4 5.0 4.6 3.8 3.3 2.7 2.8 2.5 2.b l.» .8 3.1 2.7 3.6 J.7 4.0 4.1 4.2 4.1 4.2 4.9 4.8 4.9 4.7 SULIUS, RESIDUE AT 1 « 0 OEG. C DIS- SOLVED (Mfi/L) (70300) — — — 147 -- 119 — — — -- — 122 — Ill -- 14S -- -- -- -- -- 177 — — — — -- -- 93 66 81 99 87 89 64 SOLIDS, SUM OF CONSTI- TUENTS, DIS- SOLVED (MG/L) (70301) -- — 106 13b — 108 -- — — — 87 104 94 116 124 136 151 149 138 152 167 159 114 109 89 85 74 72 81 72 67 74 75 75 76 SOLIDS, DIS- SOLVED (TONS PER AC-FT) (70303) — -- .08 .20 — .16 — — — — .12 .17 .13 .IS .17 .20 .21 .20 .21 .21 .23 .24 .16 .15 .12 .12 .10 .10 .13 .09 .11 .13 .12 .12 .09 SOLIDS, DIS- SOLVED (TONS PER DAY) (70302) — — 20600 26200 — 22900 — — -- -- 24400 21900 l&BOO 18000 20000 23200 9380 24300 1950U 9930 26800 22900 26200 30600 45900 40200 44400 43200 51000 39700 48600 — 48600 50000 38700 SOLIDS, RESIDUE AT 105 DEG. C, TOTAL («6/L) (00500) 159 141 — — 157 — 146 13R 138 127 151 -- 121 -- 148 -- 169 167 170 165 ma -- 125 144 102 105 107 96 — -- — — — — — NITRO- GEN, NITRATE TOTAL (MG/L AS N) (00620) 1.8 1.3 1.4 1.4 1.4 1.1 1.2 — .97 .97 .98 1.2 1.1 1.2 1.4 1.7 1.6 1.6 1.7 1.7 1.7 1.5 1.3 1.4 1.4 1.4 1.6 .5 .5 .5 .2 .1 .1 .2 .1 NITRO- GEN, NITRATE DIS- SOLVED (MG/L AS N) (00618) 1.8 1.3 1.4 1.4 1.3 — 1.1 -- .99 .89 .99 1.2 1.1 1.3 — 1.6 1.6 1.5 1.6 1.6 1.5 1.5 1.3 1.5 1.3 1.3 1.3 1.4 1.5 1.3 1.4 1.1 1.1 1.2 1.1 NITRO- GEN, NITRATE DIS- SOLVED (MG/L AS N03) (71851) 7.9 5.7 6.2 6.0 5.6 — 4.8 — 4.4 3.9 4.4 5.3 4.8 5.7 — 7.0 7.0 6.6 7.0 7.0 6.6 6.5 5.7 6.6 5.7 5.7 5.6 6.1 6.5 5.7 6.1 4.9 4.8 5.2 4.8 NITRO- GEN, NITRITE TOTAL (MG/L AS N) (00615) .06 .03 .02 .03 .04 .01 .02 — .02 .13 .02 .01 .00 .01 .02 .03 .02 .02 .02 .02 .02 .02 .02 .03 .02 .02 .04 .03 .04 .03 .01 .01 .01 .01 .01 19 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATE NQV , 09... 28... 28... DEC 21... 21... JAN , 10... 10. .. 25... ?5. . . 29... 29. .. 16... 16. .. 28... MAR 07.. . 08... 09... 12... 13... 28... 11... 23. .. MAY 08. .. 22... JUN 06. . . 26... JUL 10. .. 24.. . AUG 08... 1 7 ... StP 04... oa. . . 19... 19... 19... 19. .. 19... 19... ivITRO- uEN, NITRITE DIS- SOLVED (MG/L AS N) (•J0613) 197B .02 — — -- — 1979 — — -- — — — — -- — — — — -- -- — .01 -- .02 — .02 -- .08 -- .06 — — .04 .03 .03 .03 .03 .02 .02 NITRO- GEN, MTKITE DIS- SOLVED (MG/L AS N02) (71856) .07 — -- — — -- — — -- — — -- — — — -- — — — — .03 -- .07 — .07 -- .26 — .20 — — .13 .10 .10 .10 .10 .07 .07 NITRO- GEN, N02*N03 TOTAL (MG/L AS 'M> (00630) — .ai .79 1.1 1.1 1.2 1.2 1.2 1.0 .95 .96 1.6 1.5 .91 .68 — — — .96 .92 1.2 .87 .b8 .61 .97 .56 .69 .91 .92 .79 .97 . 74 .99 1.0 1.0 1.0 1.0 1.0 NITRO- GEN, N02+N03 DIS- SOLVED (Mb/L AS N) (00631) .79 .81 .79 1.1 1.1 1.2 1.2 1.3 1.2 .85 .84 1.6 1.5 .83 .70 .70 . 72 .91 — — 1.0 — .58 -- .99 -- .68 .85 .97 .81 — .53 — 1.1 1.0 1.1 1.0 .96 NITRO- bEN, AMMONIA TOTAL (Mb/L AS N) (00610) — .22 .24 .12 .12 .08 .09 .24 . 11 .1 1 .08 .21 .20 .30 .23 — -- — .06 .07 .07 .02 .02 .1 1 .07 .23 .21 .05 .04 .14 .00 .11 .11 .12 .10 .11 .11 — NITRO- GEN, AMMONIA DIS- SOLVED (Mb/L AS N) (006ua> .08 -- .24 — — — — — -- -- — -- — — — — — — — — .07 -- .03 — .07 -- .23 .06 .05 .16 — .07 .05 .05 .04 .02 .02 .03 NITRO- GEN, AMMONIA TOTAL (MG/L AS NH4) (71845) -- .27 -- .15 .15 .10 .11 .28 .40 .13 .10 .25 .24 . ?9 .28 — — — .08 .09 .Os) .02 .02 .13 .08 .2H .25 .06 .05 .17 .00 .13 .13 .15 . 12 .13 .13 -- NITRO- GEN, AMMONIA DIS- SOLVED (Mfa/L AS NH4) (71846) .10 — .31 — — — — — — — -- — — — — — — — — — .09 — .04 .09 -- .30 .08 .06 .21 -- .09 .06 .06 .05 .03 .03 .04 NITRO- GEN, ORGANIC TOTAL (MG/L AS N) (00605) — .20 .19 .11 .07 .29 .27 .4a 1.2 .33 .38 .19 .21 1.0 .87 -- — -- .42 .16 .23 .06 .36 .58 .23 .27 .32 .71 .37 .43 .38 .44 .62 .47 .61 .40 .34 — NITRO- GEN, ORGANIC DIS- SOLVED (MG/L AS N) (00607) .33 — — — — — -- — — — — — — — -- — — — — -- .22 — .14 — .13 -- .30 .45 .06 .41 — .24 — .42 .20 .12 .32 .24 NITRO- GEN, AM- MONIA + ORGANIC TOTAL (MG/L AS N) (00625) — .42 .43 .23 .19 .37 .36 .72 1.5 .44 .46 .40 .41 1.3 1.1 — — -- .48 .23 .30 .08 .38 .69 .30 .50 .53 .76 .41 .57 .38 .55 .73 .59 .71 .51 .45 .83 20 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATE OCT , 0 3 ... 12... 16... 31. .. NCW 03... 1 3 ... 29... 30... 3u... OfC 01... 01... 11 ... JAN , 03... IT... 29. .. FEH 12... 15... IS... IS. .. IS... 27... MAR 1 0 ... 20... 21... 22... 22... 23... 23... 23... 23... 24... APR 02... 02... 02... Orf. . . '•a THO- SE N* MI TKITF DIS- SOLVED (MG/L AS N) (00613) 197--I .0? .02 .01 .05 .04 .01 .01 -- .01 .11 .01 .01 198D .02 .01 — .02 .03 .02 .02 .02 .02 .03 .02 .1)2 .02 .02 .03 .02 .03 .02 .03 .01 .00 .02 .01 NITHO- GtN, NITKITE DIS- SOLVED (MG/L AS N02) (71856) .07 .07 .03 .16 .13 .03 .03 — .03 . 36 .03 .03 .07 .03 — .07 .10 .07 .07 .07 .07 .10 .07 .07 .07 .07 .10 .07 .10 .07 .10 .03 .03 .07 .03 NITRO- GE'M. N02*.M03 TOTAL (MG/L AS 'Ml (OOb 30) 1.9 1.3 1.4 1 .4 1.4 1. 1 1.2 1.1 .99 1.1 1.0 1.2 1.1 1.2 1.4 1 . 7 1.6 1 .6 1.7 1.7 1.7 l.b 1.3 1.4 1.4 1.4 1.6 l.b 1 .5 1 .5 1 .2 1. 1 1. 1 1 .2 1 . 1 NITRO- GEN, N02*N03 DIS- SOLVED (MG/L AS M) (00631 ) l.tt 1.3 1.4 1.4 1.3 — 1.1 1.1 1.0 1.0 1.0 1.2 1.1 1.3 -- 1.6 1.6 l.b 1 .6 1.6 1.5 1.5 1.3 1.5 1.3 1.3 1.3 1.4 1.5 1.3 1.4 1.1 1.1 1.2 1 .1 NITHO- GEN, AMMONIA TOTAL (MG/L AS N) (00610) .10 .04 .04 .14 .06 .08 .04 .15 .08 .01 .03 .07 .03 .10 .07 .07 .09 .09 .09 .08 .17 .05 .22 .19 .17 .17 .17 .14 .17 .13 .16 .06 .06 .06 .06 'NITRO- GEN, AMMUNI A DIS- SOLVED (MG/L AS N) (00608) .09 .01 .00 .1^ .01 .04 .05 — .03 .01 .03 .02 .00 .09 .06 .09 .10 .09 .Oh .07 .08 .09 .22 .21 .12 . Ib .13 .12 .16 .13 .03 .04 .04 .01 .05 NITRO- bEN, AMMOMIA TOTAL (MG/L AS NH4) (71845) .12 .05 .05 .17 .07 .10 .Ob .18 .10 .01 .04 .08 .04 .12 .08 .08 .11 .11 .10 .10 .21 .06 .27 .23 .21 .21 .21 .17 .21 .16 .19 .07 .07 .07 .07 ixlITRO- GEN, AMMONIA DIS- SOLVED (MG/L AS NH4) (71646) .12 .01 .00 .Ib .01 .05 .06 — .04 .01 .04 .03 .00 .12 .08 .12 .13 .12 .10 .09 .10 .12 .28 .27 .15 .21 .1 7 .15 .21 .17 .04 .05 .05 .01 .06 NITKO- GEN, ORGANIC TOTAL (MG/L AS N) (00605) .23 .26 .66 .49 .71 .16 .54 .40 .54 .43 .51 .29 .37 .bb .20 .22 .54 .2b .54 .51 .22 .23 .32 .61 .50 .58 .58 .44 .66 .74 .40 .34 .16 .12 .21 NITRO- GEN, ORGANIC DIS- SOLVED (MG/L AS N) (00607) — .33 — .17 .24 — .44 — .53 .28 .52 .37 .50 .51 — .07 .41 .?7 .46 .28 .31 .52 .32 .40 .48 .35 .?4 .15 .34 .3b .29 .15 .08 .29 .19 NITRO- GEN, AM- MONIA * ORGANIC TOTAL (MG/L AS N) (00625) .33 .30 .70 .63 .77 .24 .58 .b5 .62 .44 .54 .36 .40 .65 .27 .29 .63 .34 .62 .59 .39 .28 .54 .80 .67 .75 .75 .58 .83 .87 .56 .40 .22 .18 .27 21 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATE NOV , 09... 28... 2H... DEC 21... 21... JAN , 10... 10... 25... 25... 29... 29... FEB 16... 16... 28.. . MAR 07... 08... 09... 12... 13... 2H. .. APR 11... 23... MAY 08. .. 22... JUN 06... 26... JUL 10... 24. . . AU6 OR... 17... SFP 04... OB. . . 19... 19... 19... 19... 19... 19... f.'ITRO- GhN,NH4 * OKG. bOSP. TOTAL (MG/L AS N) ( 00624 1 197H -- — — — — 1979 — — -- — — -- — — — — — — -- — .01 .1)1 .00 .21 .30 .10 .04 .00 ,Z5 .30 .00 .16 .24 — .12 .47 .37 .11 .56 NITRO- GEN. AM- MONIA * ORGANIC DIS. (MG/L AS N) (00623) .41 — — — — — — — — — — — — — — — — — — .22 .29 .10 .17 .39 .20 .46 .53 .51 .11 .57 .22 .31 — .47 .24 .14 .34 .27 NITRO- GEN. TOTAL (MG/L AS N) (006JO) — 1.2 1.2 1.3 1.3 1.6 1.6 1.9 2.5 1.4 1.4 2.0 1.9 2.2 1.8 — — — 1.4 1.2 1.5 .95 .96 1.3 1.3 1.1 1.2 1.7 1.3 1.4 .4 .3 .7 .6 .7 .5 .5 .8 NITRO- GEN. DIS- SOLVED (MG/L AS N) (00602) — — — — — — -- — — — — — — — — — — — — — 1.3 -- .75 — 1.2 — 1.2 1.4 1.1 1.4 — .84 — 1.6 1.2 1.2 1.3 1.2 NITRO- GEN. TOTAL (MG/L AS N03) (71887) — 5.4 5.4 5.9 5.7 7.0 6.9 8.5 11 6.2 6.3 8.9 8.5 9.8 7.9 — — -- 6.4 5.1 6.6 4.2 4.3 5.8 5.6 4.7 b.4 7.4 5.9 6.0 6.0 5.7 7.6 7.0 7.6 6.7 6.4 8.1 PHOS- PHORUS. TOTAL (MG/L AS P) (00665.) — .04 .04 .1)4 .04 .06 .06 .31 .28 .07 .OB .OJ .03 .29 .35 — — -- .OS .04 .03 .03 .02 .04 .05 .04 .03 .03 .05 .06 .03 .09 .06 .06 .05 .05 .06 .06 PHOS- PHORUS TOTAL (MG/L AS P04) (71886) -- .12 .12 .12 .12 .18 .18 .95 .86 .21 .24 .09 .09 .H9 1.1 — -- — .15 .12 .09 .09 .06 .12 .15 .12 .09 .09 .15 .18 .09 .28 .18 .18 .15 .15 .18 .18 PHOS- PHOHUS. DIS- SOLVEO (MG/L AS P) (00666) .01 .02 .01 .01 .01 .02 .02 .06 .03 .11 .00 .02 .01 .06 .02 — — -- .00 .01 .01 .01 .01 .00 .02 .02 .00 .01 .01 .02 .02 .04 .03 .02 .02 .01 .02 .02 PHOS- PHORUS. ORTHO. TOTAL (MG/L AS P) (70507) -- .01 .01 .01 .02 .02 .02 .06 .03 .02 .02 .02 .02 .06 .03 — — — .01 — .00 — .01 — .01 — .01 .00 .00 .03 — .03 .07 .01 .07 .01 .08 — PHOS- PHORUS, ORTHO, DIS- SOLVED (MG/L AS P) (00671) .00 .01 .00 .01 .02 .01 .01 .04 .03 .10 .00 .01 .01 .06 .00 — — — .01 .00 .01 .01 .00 .00 .01 .01 .02 .00 .00 .00 — .05 .00 .00 .00 .00 .00 .00 PHOS- PHATE, ORTHO, DIS- SOLVED (MG/L AS P04) (00660) .00 .03 .00 .03 .06 .03 .03 .12 .09 .31 .00 .03 .03 .in .00 — — — .03 .00 .03 .03 .00 .00 .03 .03 .06 .00 .00 .00 — .15 .00 .00 .00 .00 .00 .00 22 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATt nCT , 03. . . 12. .. 16. .. 11... NUV D3. . . 13... ?9. . . 30... JO... ntr "1 . . • 01... 11... JAN , U 3 . . . 15... 29. .. Ftt- 12. .. 15... IS... IS. . . IS... 27... 10... 2 0 ... 21... 22... 22.. . 23.. . 23... 23... 23... 24... APK (1 2 ... 02. . . 02. . . 02.. . NITRO- GEN, NH4 * ORG. SUSP. TOTAL (M'J/L Ab N) (00624) 1979 .00 .00 .00 .34 .52 .00 .09 -- .U6 .15 .on .00 19»0 .00 .OS -- .13 .12 .00 .08 .?» .00 .00 .00 .19 .07 .24 .38 .31 .33 .39 .24 .21 .10 .00 .03 NITRO- GEN, AM- MONIA * ORGANIC DIS. (MG/L AS N) (00623) — .34 -- .29 .25 — .49 — .56 .29 .55 . 19 .50 .60 -- .16 .51 .36 .54 .35 .39 .61 .54 .01 .60 .51 .37 .27 .50 .48 .32 .19 .12 .30 .24 NITRO- GEN, TOTAL (MG/L Ab N) (00600) 2.2 1.6 2.1 2.0 2.2 1. 1 1.8 i. r 1.6 l.S 1.5 1.6 1.5 1.9 1.7 2.0 2.2 1.9 2. 1 2.3 2.1 1.8 1.8 2.2 2.1 2.2 2.4 2.1 2.3 2.4 1.8 1.5 1.3 1.4 1.4 NITRO- GEN, DIS- SOLVED (MG/L AS N) (00602) 2.5 1.6 -- 1.7 1.6 -- 1.6 — 1.6 1.3 1.6 1.6 1.6 1.9 — 1.8 C-.i 1.9 2.1 2.0 1.9 2.1 1.8 2.1 1.9 1.8 1.7 1.7 2.0 1.8 1.7 1.3 1.2 l.S 1.3 NITRO- GEN, TOTAL (MG/L AS N03) (7l8b7) 9.9 7.1 9.3 9.0 9.6 5. -) 7.9 7.3 7.1 6.8 6.8 6.9 6.6 i.2 7.4 ft. 8 9.9 ".6 10 10 9. 3 7.9 8.1 9. 7 9.2 9.5 10 9.2 10 11 7.8 6.6 s.8 6.1 6.1 PHOS- PHORUS, TOTAL (MG/L AS P) (00665) .08 .07 .04 .01 .05 .03 .09 .07 .07 .06 .08 .04 .03 .04 .OS .04 .08 .OS .05 .05 .05 .04 .08 .11 .12 .15 .20 .34 .IB .32 .15 .07 .07 .07 .07 PHOS- PHORUS TOTAL (MG/L AS P04) (71886) .25 .21 .12 .03 .15 .09 .28 .21 .21 .18 .25 .12 .09 .12 .15 .12 .25 .15 .15 .15 .15 .12 .25 .34 .37 .46 .61 1.0 .55 .98 .46 .21 .21 .21 .21 PHOS- PHORUS, DIS- SOLVED (MG/L Ab P) (00666) .03 .03 .03 .04 .04 .02 .01 .02 .01 .01 .01 .02 .06 .02 .00 .03 .03 .02 .02 .03 .03 .02 .04 .03 .02 .03 .03 .02 .03 .02 .01 .01 .01 .01 .01 PHOS- PHOKUS. ORTHO. TOTAL (MG/L AS P) (70507) .04 .03 .02 .00 .04 .00 .00 .00 .00 .00 .00 .03 .06 .03 .01 .02 .03 .05 .03 .03 .05 .00 .04 .05 .00 .01 .01 .01 .08 .01 .06 .00 .00 .00 .00 PHOS- PHORUS, ORTHO, DIS- SOLVED (MG/L Ab P) (00671 ) .04 .03 .04 .01 .00 — .00 — .03 .02 .02 — .05 .03 .00 .01 .00 .04 .03 .03 .05 .01 .00 .00 .02 .04 .00 .60 .04 .00 .00 .00 .00 .00 .00 23 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATf NOV 09. 28. 2b. DEC 21. 21. JAN 10. 10. 25. 25. 29. 29. FEW 16. 28. MAR 07. Ott. 09. 12. 13. 2b. APR 11. 23. MAY 08. 22. JUN 06. JUL 10. 24. AUG 08. 17. bFH 04. 08. 19. 19. 19. 19. 19. 19. ALUM- INUM, TOTAL RECOV- ERABLE (UG/L AS AL) (01 105) 1978 300 130 170 220 220 1979 420 450 9300 10000 1600 1800 0 0 0 ALUM- INUM, SUS- PENDED RECOV. (UG/L AS AL) (01107) 260 130 160 180 170 380 400 9200 10000 1600 1800 0 0 0 ALUM- INUM, DIS- SOLVED (UG/L AS AL) (01106) 40 0 10 40 50 40 50 110 30 20 30 0 10 0 ARbENIC TOTAL (UG/L AS AS) (01002) 0 — — 1 1 1 1 — -- 1 1 — — 3 ARStNIC SUS- PENDED TOTAL (UG/L AS AS) (01001) — — — -- -- — -- — — — — -- — — ARSENIC DIS- SOLVED (UG/L AS AS) (01000) — — — — — -- -- — -- -- — — — — BARIUM, TOTAL RECOV- ERABLE (UG/L AS BA) (01007) — — — — — — — — — — — — — — BARIUM. SUS- PENDED RECOV- ERABLE (UG/L AS BA) (01006) — — — — — — — — — — — — — — BARIUM, DIS- SOLVED (UG/L AS BA) (01005) — — — — — — — — — — — — — -- BERYL- LIUM, TOTAL RECOV- ERABLE (UG/L AS BE) (01012) 10 — — 0 0 0 0 — — 0 0 — — 0 12000 1100 12000 1100 230 220 160 80 130 220 170 150 400 180 140 10 40 90 170 130 110 360 50 80 150 40 40 50 40 40 40 70 290 700 600 000 600 800 800 240 600 600 aoo 500 700 800 50 100 0 0 100 100 0 1 100 100 24 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued OATt OCT 03. 12. 16. 31. MOV 03. 13. 29. 30. JO. DEC 01. 01. 11. JA'J 03. IS. 29. FEH 12. 15. is. IS. is. 27. MftR 10. 20. 21. 22. 23. 23. 23. 23. 24. APR 02. 02. 02. 02. PHOS- PH»TE> URTHO. DIS- SOLVED (MG/L AS P04) (00660) 1979 .12 .09 .12 .03 .00 — .00 — .09 .06 .06 — 1980 .15 .09 .00 .03 .00 .12 .09 .09 .15 .03 .00 .00 .06 .12 .00 .00 .12 .00 .00 .00 .00 .00 . 00 ALUM- INUM, TOTAL RECOV- ERABLE (UG/L AS AL) (0110s) suo 500 300 600 600 600 700 800 800 ?00 800 SOO 6uO 200 200 300 300 2oO 200 200 400 300 600 600 1100 1200 2200 2300 2rtOO 2400 2000 700 900 800 1100 ALUM- INUM, SUS- PENDED RECOV. (UG/L AS AL) (01107) 0 100 0 300 100 0 400 500 600 400 600 300 400 100 100 200 200 0 100 100 100 100 400 500 900 1000 2000 2200 — 2300 1900 600 WOO 700 1000 ALUM- INUM, DIS- SOLVED (Ub/L AS AL) (01106) 600 400 300 300 bOO 600 300 300 200 300 200 200 200 100 100 100 100 200 100 loo 300 200 200 100 200 200 200 100 -- 100 100 100 100 100 100 ARSENIC BARIUM, SUS- ARSENIC TOTAL ARSENIC PENDED DIb- RECOV- TOTAL TOTAL SOLVED ERABLE (UG/L (UG/L (UG/L (UG/L AS AS) AS AS) AS AS) AS 9A) (0100?) (01001) (01000) (01007) — — — — — — — — -- _- — — — _- — 0000 _- __ — — — — — — __ _- — — 0 0 0 <50 — — — _- -- — -_ — — -- — — — — — — BARIUM, SUS- PENDED RECOV- ERABLE (UG/L AS BA) (01006) — — — — — — — — — — — 0 — — — — — — — — — <10 -- — — — — — — — — — — — — BARIUM, DIS- SOLVED (UG/L AS BA) (01005) — — — — — — — — — — — 30 — — — — — — -- — — 40 -- — — -- — — — — — — — — — 25 ------- DATE SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued CADMIUM luTAL RtCOV- tRAHLt (Ub/L (01034) CHRO- MIUM, SUS- PENDED RECOV. (UG/L AS CH) (01031) CHRO- MIUM, DIS- SOLVED (UG/L AS CR) (01030) COBALT. TOTAL RECOV- ERABLE (UG/L AS CO) (01037) COBALT, SUS- PENDED RECOV- ERAbLE (UG/L AS CO) (01036) COBALT, DIS- SOLVED (UG/L AS CO) (01035) COPPER, TOTAL RECOV- ERABLE (UG/L AS CJ) (01042) COPPER, SUS- PENDED RECOV- ERABLE (UG/L AS CU) (01041 ) 1976 09.. DEC 21... 21... 10... Id... 25... 25... 29... FEU 16... 16... MAK 07. .. 13... 2H. .. APR 11... 23... WAY 0*1... 22... JUN 06. . . 26. . . JUL 10... 24... AUG On... 17... SFP 04... 08... 1979 12 19 10 30 10 30 Ifl 20 30 20 10 20 10 ID 10 18 4 23 19... 19... 19... 19... 26 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued OATt DC r , 0 3 ... 16... 3 1 ... MOu 0 j... 1-1... 30... JJ... DEC 01... 0 1 ... 11... JAN . 1)1... is... ft 1 12... IS. . . IS... ^•1 ... "••Art 1 0 ... 2 0 ... 21... 22.. . 23... 2 3 ... 2j. . . 2J... 24. .. APH 02... U2... 9 2 ... 02... C- iJMIUM TOTAL "ECOV- ERAdLt (UG/L uS CD) (01 02?) 197V -- 0 0 -- 0 — — -- — 0 19H."' — 0 1 __ — — 0 -- -- — — -- 0 0 0 0 0 I) 0 CADMIUM bUb- PENDEu CADMIUM HtCOV- DIS- tKABLE SOLVED (UG/L (UG/L Ab CHI AS CD) (01026) (0102s) -- -- — -- — -- -_ — — 0 0 -- -- ___ -_ — 0 2 -- -- — — -_ -- -_ — — — -- -- CHRO- MIUM, TOTAL RECOV- ERARLE (UG/L AS CR) (01034) -- I — — 0 — — — — 10 — 10 6 __ — — 10 — -- — — -- 14 13 0 4 S s 0 CHRO- MIUM, CHRO- COBALT, SUS- MIUM, TOTAL PENDED DIS- RECOV- RELOV. SOLVED ERABLE (UG/L (UG/L IUG/L Ab CR) AS CR) AS CO) (01031) (01030) (0103M — __ — — _- __ — — 0 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310]--Continued COPPER, DIS- SOLVED (UG/L DATE MS CU) (U1040) NOV , 1978 09... ?-!... 28... DEC 21... 21... JA^I , 1979 lo... lu... 25... 25... 29... 29... FM If)... I*)... 28... MAR 07... 13... 28.. . 2 APP 11... 23... N-AY 08... 22... JiJN 06... ?B... 2 JUL lu... 24... AUG 0-1.. . 17... SEP 04. .. 1 08... 19... 14... 19... 19... 19... 19... IKON, TOTAL RECOV- ERAbLE (UG/L AS F£) (01045) 2hO 380 450 790 540 920 9BO 12000 1500U 2900 3000 480 "-,90 7700 14000 1500 1000 730 620 b20 310 670 330 370 350 420 — ?70 890 390 430 330 340 320 470 IRON, SUS- PENJED RECOV- ERABLE (UG/L AS Ft) (01044) 280 JTO 390 ?40 490 870 blO 12000 15000 2900 3000 350 DlO 7700 14000 1500 310 640 490 ^20 290 ^50 330 170 350 «20 — 270 860 370 • 10 110 330 310 »SO IKON, DIS- SOLVED (UG/L AS FE) (01046) 0 30 60 50 50 50 370 200 130 40 40 130 80 40 SO 40 690 90 130 100 20 120 0 0 0 0 10 0 30 20 20 20 1C 10 20 LEAD. TOTAL RECOV- ERABLE (UG/L AS PB) (01051) S — -- ^ 4 5 0 -- -- 53 55 -- — 6 18 3 12 — 8 -- 120 -- 3 -- 5 -- 3 15 — — — -- -- — — LEAD, MANGA- SUS- I^ESE, PENDED LEAD, TOTAL ^ECOV- DIS- RECOV- ERABLE SOLVED EHABLE (UG/L (UG/L (UG/L AS PB) AS PB) AS "IN) (01050) (01049) (01055) 50 70 BO 110 100 180 180 530 -- 240 270 2«0 270 300 1100 220 ! S 180 190 190 100 140 200 a o 200 130 160 150 -- 15 0 160 120 90 90 90 80 90 110 MANGA- NESE, SUS- PENDED RECOV. (UG/L AS MN) (01054) 50 50 50 0 0 50 50 190 — 100 130 20 10 140 700 60 0 10 20 100 60 40 70 90 llu 110 — 110 no 90 90 90 70 80 100 MANGA- NESE, DIS- SOLVED (UG/L AS MN) (01056) 0 20 30 120 100 130 130 340 — 140 140 260 260 160 400 160 180 180 170 0 RO 160 130 40 70 40 30 50 10 0 0 0 10 10 10 MERCURY TOTAL RECOV- ERABLE (UG/L AS HG) (71900) <.5 — -- <.b 1.0 1.4 1.0 — — 1.4 1.4 — — <.5 1.2 <.5 .5 — .5 — <.5 — <.5 — <.5 — <.5 <.5 — — — — — — -- 28 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued CUPPER. DIS- SOLVED (UG/L DATE Ab CO) (i>1040) UCT , 197* 01... 12... 16. .. 31... NOrf 03... n... 2«... 3')... 30. .. DtC 01... 01... 11. .. 2 JAN . 19rll) 03... IS... 29... FE* 12... IS. . . 15... 15... ID... J1'" !>)... 2 20... 21... 22... 22... 23... 23... 23... 21... 24. .. APR 02... 02... 02... 02. . . IRON. TOTOL KtCOV- ERAbLE (UG/L Ab FE) (010*5) *SO 940 7*0 540 520 730 1400 ?100 2200 2000 2800 620 1100 400 500 400 380 380 3^0 370 5SO 360 1100 1100 1800 1400 3800 3700 4300 3800 3400 70 70 20 80 IRO -I, SUS- PENDED RECOV- ERABLE (UG/L Ab FE) (01044) *20 190 720 510 500 620 1400 2 '100 2200 2000 2HOO 440 1000 260 370 320 320 310 330 no T30 350 *50 970 1 ton 1«00 3BOO 3700 4300 3nOO 3300 20 10 0 20 IRON, DIS- SOLVED (UG/L AS FE) (01046) 30 SO 70 30 20 110 20 80 10 10 30 180 60 140 130 80 SO 7(1 50 60 20 10 ISO 130 80 110 50 40 40 30 80 50 60 30 60 LEAD. LEAD, SUi- TOTAL PtNDEO RECOV- RECOV- ERABLE ERABLE (UG/L (UG/L AS PB) Ab PB) (01051 ) (01050) __ __ 5 7 __ IBnfl — _- — — __ 3 3 _- 2 __ 2 — _- __ — — 2 2 — __ — _- _- — 0 7 6 2 3 6 — 6 MANGA- NEbE, LEAD, TOTAL DIS- RECOV- bOLVED ERABLE (UG/L (UG/L AS Py) Ab MN) (01049) (01055) 120 110 130 110 90 1*0 200 240 230 170 160 0 160 ISO 160 190 180 180 180 170 170 220 0 210 270 310 260 2*0 330 350 350 380 290 160 190 180 180 MANGA- NESE, bUS- PENDED RECOV. (UG/L AS MN) (01054) 120 70 40 100 90 50 110 100 100 100 120 10 20 0 0 10 0 0 0 0 20 50 50 40 120 100 140 ISO 160 150 150 60 RO 70 70 MANGA- NESE, DIS- SOLVED (UG/L AS MN) (01056) 0 40 90 10 0 90 90 140 130 70 40 150 130 160 200 170 180 180 170 180 200 160 220 2?0 1*0 140 190 200 190 230 140 100 110 110 110 MERCURY TOTAL RECOV- ERABLE (UG/L AS Hb) (71900) -- -- .1 .1 — <• 1 — -- — — — < . 1 — <. 1 — — — — -- -- — .2 — -- — — — — <• 1 <• 1 <. 1 .1 .1 .1 .1 29 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued DATE KiOV , 197^ 09... 2M... DEC 21... 21... JAN , 1979 1 0 ... 10... «it RCURY bUS- HtNDED RECOV- t-RABLE (UG/L uS HG) ( 716Sb) MtRCURr DIS- SOLVED (UG/L A3 HG) (71ti90) NICKEL, TOTAL RECOV- ERABLE (UG/L AS NI) (01067) SELE- NIUM, TOTAL (UG/L AS SE) (01147) SELE- NIUM, SUS- PENDtO TOTAL (UG/L Ab SE) (01 146) SELE- NIUM, Olb- SOLVED (UG/L AS SE) (OH4b) SILVER, TOTAL RECOV- ERABLE (UG/L AS A6I (01077) SILVER, SUS- PENDED RECOV- ERABLE (UG/L AS AG) (01076) SILVER, DIS- SOLVED (UG/L AS AG) (01075) ZINC, TOTAL RECOV- ERABLE (UG/L AS 2N) (0109?) ZINC, SUS- PENDED RECOV- ERABLE (UG/L A3 ZN) (01091) 13 19 10 12 11 20 30 bO JO 2S... 29... 29... FE-t 16... "AH 07... 13... 2H... Al^R 11... 23... MAY OH. . . 22... Jll'l 00. . . 26... JUL 10... A11 ("-T 08. . . 17.. . SfcP 04. .. OB... Ib 18 27 16 Ib 20 JO 70 110 0 30 20 30 20 30 40 10 10 10 10 19... 19.. 19.. 30 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued OATt 3US- PE.NOED KtCUV- tHAdLE ( J fi / L 'ib HG) ( 7189-3) NICKtL, MFRCURY TOTAL SFLt- t)IS- HECOV- NIU'J. SOLVED EHAHLE TOTAL (UG/L (UG/L (UG/L AS HG) AS MI) AS S£) SELE- NIUM, SELE- SILVEW, SILVER, SUS- SUS- PENDED TOTAL (UG/L AS SE) NUM. DIS- SOLVED (UG/L AS St) TOTAL RECOV- ERABLE (UG/L AS Ad) PENDED RECOV- ERABLE (UG/L AS AG) ZINC, SILVER, TOTAL DIS- RECOV- SGLVED ENABLE (UG/L (UG/L AS AG) AS 2*1) UCT , 197^ II J ... 12... 1ft. .. 31.. . 03... 13... 29. . . JO. . . 3 0 ... DEC "I... 01... 11... JAN , 19Hu 0 3 ... 171890) (01067) (01147) (0114h) (01145) (01077) (0107ft) (01075) (01092) 20 20 90 10 20 ZINC, SUS- PENDED RECOV- ERABLE (UG/L AS ZN) (010Q1) 12.. . 20 IS. 27. 1 o . 21 . 22. 14 JO 23. 23. 23. 24. APR 02. 02. 02. 02. 6 6 10 120 60 30 20 ?0 20 20 31 ------- SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980 Susquehanna River at Conowingo, Maryland (01578310)--Continued aEO. SUSP. 7INC, SIEVE SEDI- DIS- DIAM. MENT, SOLVED * FIi-iEK SUS- (UG/L 1HAN PEMDED OATE AS ZN) .0^2 MM (M6/L) (01090) (7UJ31) (80154) Ft" 1979 28... -- -- 197'-' MAK 07... -- -- 454. 13... -- -- 5S 28... 20 11... -- -- Jl 23... -- 100 10 08... — — If, 72... -- 100 it JON Of;... -- -- 12 2').. . 10 100 H JUL 10... -- -- 7 24... -- fe^ 17 AUG OB... -- vl 17 17... -- 100 4 SEP 0 4... 0 100 9 (1C I 03... — -- 22 12... " — 23 16... -- 90 1H NOV 13... — 92 13 30... -- -- 34 30... -- -- 57 DEC 01... -- -- 29 01... -- -- 4') 11 ... 30 92 10 JAN 1980 03... -- -- 15 15. .. — rt 3 f> 29... — -- *> Ft« 27... -- HI b 10... -- 46 6 20... -- 99 lb 23... " 100 13?-- 23... -- 100 13R 02... -- 100 40 32 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580) DATE ! IMF bTREA"- FLO«, IdbTAN- T4NF.OUS (CFS) (00061 ) SPE- CIF 1C CON- DUCT- ANCE MICRO- MH05I (0009S) PH (UNITS) (00400) TEMPER- ATURE,, AIR (DEG C) (00020) ItPlPEK- A1UKE (DEG C) (00010) TUR- OXYGEN, BID- DIS- ITY SOLVED (NTU) (MG/L) (00076) (00300) COLI- FUP", FECAL, 0.7 UM-MF (COLS./ 100 ML) (31625) STREP- TOCOCCI FECAL, KF AGAR (COLS. PER 100 ML) (31673) HARD- NESS (MG/L AS CAC03) (00900) OCf , 197d 0?... 04.. . 1 0 ... NU... DEC 19.. . JAN . 197' 16... 27... 01... 19. .. 27. .. APR 26... 23... JUH 05... 13... JUL 17... AUG 15... SEP Ob. . . 06. . . 06.. . 07... 07... 07... 07... 08. . . 09. . . OCT 11... 17... NOV 27... DEC 12... JAN . 198*' 14... U... MAK 11... 18. .. 18... 1H. .. 19... 19... ?2... 22... 22... 23... 23... 24... APS 02... 02... K Results 1341 1423 1020 1015 1000 * lllb 1900 1?30 1230 1000 1300 1045 1030 1030 1030 1U30 1030 1330 2000 0745 1100 1430 1830 1030 1415 1130 1 100 1 100 1030 1030 1030 1 100 1230 1600 1900 1000 1315 1045 1330 1630 1230 1450 1230 1100 1300 based 1 7QO 1840 1940 1 790 5780 11700 19?000 73800 16500 49800 10100 9970 34200 21200 4440 4940 62000 62300 58700 70600 B4200 95300 104000 80900 36200 68800 28400 1 1900 9140 10200 7310 14900 23600 26200 28900 41200 43000 57200 — 59300 55600 54200 42100 59700 59900 on colony — — 450 450 290 2?5 135 265 200 245 195 230 260 325 310 180 177 160 165 ?05 220 230 168 178 172 215 125 280 285 340 180 225 217 210 220 222 -- -- — -- — — 200 195 — -- 8.6 8.5 8.2 r .7 P.O __ 8.2 8.0 8.7 H.4 H.I H.I 8.5 «.5 7.8 8.3 -- -- -- -- — -- — H.I 7.4 H.2 8.1 H.I 8.0 H.b H.n S.I 8.3 7.9 7.8 -_ -- — -- -- — 8.2 8.2 count outside the — -- 14.0 1R.5 5.5 4.5 3.5 -- 10.5 16.0 21.5 -- 23.0 28.8 20.0 26.5 — -- — -- -- — -- — — 17.0 11.0 2.4 2.5 5.0 a.o — -- -- — — — — -- — — — — — -- — 14.5 12.5 3.5 1.0 3.0 — 8.0 9.0 18.0 22.0 21.0 21.0 29.0 24.5 24.5 24.7 24.6 23.7 24.1 -- — — -- 11.4 11.9 14.0 7.1 2.3 2.0 8.0 9.0 9.0 9.0 9.0 9.0 — — -- -- -- 8.0 9.0 9.0 acceptable range — — 2.0 10.8 7.0 11.1 5.0 13.7 4.0 14.1 90 14.2 -_ __ 65 4.0 9.6 6.0 9.6 -_ ?5 9.8 7.0 8.5 15 9.5 150 6.5 -- -- -_ __ -- __ -_ -._ __ 3.0 8.4 1.0 11.8 1.0 0.7 .51 12.6 .50 14.1 .20 1 1 .9 -_ __ -_ __ -_ -- -_ -- -_ -_ 50 22 25 (non-ideal colony — — K13 80 60 40 1700 — — 1500 K9 48 — 170 60 120 K11000 — — — — — — — — -- 270 280 K7 33 <1 <1 -- — — — — — — _,- — -- — __ — count) . — — 270 240 ?40 400 7000 — — 3800 360 270 -- 140 530 1100 E84000 -- -- — — — — — -- — 120 270 K4 280 K2 K3 — — -- — — — — __ -- .- _. — — — 180 200 120 92 43 56 100 78 110 100 — 110 120 120 69 68 60 64 76 83 89 — 72 -- 93 110 120 120 130 110 89 86 86 — — bl 59 59 65 68 65 75 75 E Estimated. 33 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580)--Continued DATE OCT . 02. . . 04.. . 10... N.OV 14... DEC 19. .. UAN , 16... FEH 27... MAH 01... 19. .. 27... APw 26... MAY 23... UUN 05... 13... UUL 17... A Ufa 15... 06... 06. .. 06... 0 7 ... 07... 07... 07... HARD- NESS, NONCftR- BONATE (MG/L CAC03) (00902) 1974 — -- 58 58 47 1979 32 14 26 36 33 35 31 — 29 37 38 6 6 9 1H 16 14 14 CALCIUM DIS- SOLVED (MG/L Ab CA) (0091-)) -- -- 50 58 34 27 13 17 3(> 23 33 3J — 33 34 34 21 21 Id 19 23 25 27 MAGNE- SIUM. Ulb- SOLVEQ (MG/L AS '^ G ) (OU925) — -- 13 13 7.6 6.9 2.5 3.4 6.8 4.9 7.0 6.2 — 6.6 9.6 8. 1 3.9 3.8 3.6 3.9 4.6 5. 1 5.2 SODIUM, DIS- SOLVED (MG/L Ab MA) (00930) — — 22 26 9.3 8.0 3.0 3.6 7.0 5.2 8.2 8.6 — 7.4 15 13 ^.-) 5.4 4.7 ^.5 7.5 7.1 8. 1 SODIUM PERCENT (00932) — — 21 22 15 16 13 12 13 12 14 15 — 12 20 19 15 14 14 15 17 15 16 SODIUM AD- SORP- TION RATIO (00931 ) -- -- .7 .8 . 4 . 4 .2 .2 .3 .3 .3 .4 — .3 .6 .5 .3 .3 . T .3 .4 .3 .4 POT4S- blUM, DIS- SOLVED (MG/L AS K) (00935) -- -- 2.7 3.0 2.2 1.8 2.1 1.9 1.6 1.7 1.5 i.a — 2.8 2.4 3.0 3.3 3.3 4.3 4.0 3.7 3.5 3.3 ALKA- LINITY (MG/L Ab CAC03) (00410 ) — — 120 140 69 60 29 3(1 67 45 76 69 — 81 87 ao 63 62 51 46 60 69 75 bULFATE DIS- SOLVED (MG/L AS b04) (00945) — — 66 74 40 27 16 18 30 25 34 30 — 29 49 43 15 15 11 16 20 20 23 CHLO- RIDE, DIS- SOLVED (MG/L AS CD (00940) — — 20 25 9.0 13 4.5 5.4 7.8 7.2 9.4 7.5 — 7.0 15 15 6.3 6.4 6.1 6.0 6.9 7.7 8.3 FLUO- RIDE, DIS- SOLVED (MG/L Ab F) (00950) — — .1 .2 .1 .1 .1 .1 .1 . 1 .1 .1 — .1 .1 .1 .1 .1 .1 .1 .1 .1 .1 09... 23 22 4.1 4.0 10 .2 2.6 49 19 OCT 11... 17... NOV 21... DEC 12... UA'M , 198'i 14... FEH 11... MAR 11... 18... 18... 18... 19... 19... 22... 22... 22... 23... 23... 24... APR 02... 02... 25 23 33 34 33 35 31 30 28 28 32 35 36 40 31 26 25 25 5.5 6.9 7.4 7.5 a. i 7.4 b.R 5.8 5.7 4.5 8.4 7.8 9.6 11 8.9 9.9 9.6 9.3 12 18 16 19 15 15 19 19 19 .2 .4 .3 .4 .4 .4 .5 .5 .4 1.7 1.7 1.6 1.7 1.5 1.2 1.6 1.7 1.6 68 85 85 87 100 73 58 56 58 21 30 29 32 31 34 27 27 26 5.4 9.3 9.1 11 12 10 14 13 19 . 1 .1 .7 .1 .2 .1 .1 .1 .1 19 25 24 26 23 27 31 31 15 17 17 19 20 19 22 22 3.4 4.0 4.1 4.3 4.3 4.3 4.9 4.8 4.4 4.4 4.3 4.9 5.0 5.0 5.4 5.5 15 13 13 14 13 14 13 13 .3 .3 .2 .3 .3 .3 .3 .3 2.4 2.3 2.3 1.8 1.8 1.6 1.7 1.8 32 34 35 39 45 38 44 44 17 17 17 20 20 19 24 23 8.1 7.6 7.3 7.1 7.1 6.2 7.0 .1 6.7 .1 34 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580)--Continued DATE nci . 02.. . n 4 ... 1 U . . . NOV 14... DEC 19. .. JAN . 16.. . FFM 27... WAR 0 I ... 19... 27. .. AI-H 26... MAY 23... JUM 05.. . 13... JOL 17.. . AUG 15... 06. .. 06. .. 0 6 ... 07.. . () 7 ... 0 7 ... 07 , . . 08... 09. . . OCT 11... 17... NOV 27. .. DEC 12... JAN , 1"... F t>3 11... MAR 11.. . 18. .. 18... 18. .. 19... 22... 22... 22... 23... 23... 24... APR 02... 02... SILICA, DIS- SOLVED (MG/L AS SI02) (00955) 197- 2.6 2.3 1.4 .? 6. 1 19 It 7. 3 4. 3 5.9 7.1 5.7 1. 1 5.8 -- 6. 7 1.5 5.» 6.1 b.« 6.1 6.6 6.5 6.7 7.0 -- 7.9 -- B.4 2.1 3.2 1 S8u 4.3 5.1 l.H 3.7 3.8 3. 7 _. 5.5 6.0 6.0 6.4 6.7 6.9 6.7 6.7 SOLIDS, RESIDUE AT 180 OEG. C DIS- SOLVED (MG/L) (70300) — -- 259 306 149 149 70 — 147 11 3 1V7 154 — 154 222 185 118 — — — — — — — — — 126 163 157 153 206 152 -- — — -- -- -- — -- 111 123 165 SOLIDS, SUM OF CONSTI- TUENTS, DIS- SOLVED (MG/L) (70301 ) — — 247 2rt4 116 126 63 79 138 100 140 132 — 141 181 172 104 103 89 93 113 119 135 — 96 -- 121 147 152 161 17ft 142 129 126 131 82 86 86 94 99 91 105 103 SOLIDS, DIS- SOLVED (TONS PER OC-FT ) (70303) — -- .35 .42 .20 .20 .10 .11 .20 .15 .21 .21 — .21 .30 .25 .16 .14 .12 .13 .15 .16 .18 — .13 -- .17 .22 .21 .21 .28 .21 .18 .17 .18 — .11 .12 .12 .13 .13 .15 .17 .22 SOLIDS, DIS- SOLVED (TONS PER DAY) (7030?) -- — 136li 14HO 2330 4710 37200 15700 6550 15200 42dO 4150 — 8820 2540 2470 19800 17300 14100 17700 25700 30600 37900 — 9360 — 9660 5240 3870 4210 4070 6120 8220 8910 10200 12700 — 13800 14100 14500 12600 19800 26700 SOLIDS, RESIDUE AT 103 DEG. C, TOTAL (MG/L) (00500) -- -- — -- — -- — — — 134 158 162 233 207 224 209 1030 767 682 568 622 ftHJ 589 308 363 226 — -- — — -- -- 135 134 137 124 173 117 116 115 — -- " NITRO- GEN, NITRATE TOTAL (Mb/L AS N) (00620) -- — -- — l.b -- -- 1.1 1.6 -- -- -- 1.3 -- .40 .45 __ 1.? .97 1.1 1.4 ?.o 1.8 -- .77 1.2 1.3 1.1 1.4 l.b l.B .86 1 .2 1.2 1.3 1.4 1.5 1.2 1.3 1.3 1.5 1.4 1.4 NITRO- GEN, NITRATE DIS- SOLVED (MG/L AS N) (00618) — — -- — — — -- — 1.6 — -- — 1.3 — .40 .44 — .97 .85 .97 .98 .46 1.8 -- .36 1.3 1.3 1.1 1.4 1.5 1.9 .87 1.3 1.3 1.3 1.5 1.5 1.5 1.5 1.5 1.4 1.4 1.4 NITRO- GEN, NITRATE DIS- SOLVED (MG/L AS N03) ( 71851) — — -- — — -- -- — 7.0 — — — 5.7 — 1.8 1.9 — 4.3 3.8 4.3 4.3 a.o 7.9 — 1.6 5.7 5.7 4.9 6.2 6.6 8.4 3.9 5.7 5.7 5.6 6.5 6.4 6.5 6.6 6.6 6.2 6.2 6.2 NITRO- GEN, NITRITE TOTAL (MG/L AS N) (00615) — — — — .01 — -- .02 .01 -- — — .02 — .01 .01 — .00 .03 .02 .03 .01 .01 — .06 .03 .00 .00 .00 .01 .01 .00 .02 .02 .02 .06 .06 .06 .33 .03 .02 .02 .02 NITRO- GEN, NITRITE DIS- SOLVED (MG/L AS N) (00613) — — — -- — — -- — .01 — — — .02 — .01 .01 — .03 .02 .03 .02 .03 .01 — .03 .01 .01 .00 .01 .01 .01 .01 .02 .02 .03 .03 .05 .04 .02 .02 .01 .01 .01 35 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, B.C. (01646580)--Continued DATE OfT , 0 2 ... l>4. .. 10. .. NOV 14. .. DEC 1 9 ... JAN , 16... FEH 27... 01... 1 9 ... 27... APR 26. . . 23... JtlM 05. .. 13... JUL 17... IS... 06. .. Ob. . . 06. .. 07... 0 7 ... 07. .. 07. .. OH... 04. .. ocr 11... 17... 'MOV 27... DEC 12... JAN , 14... FEH 11... MAR 11... 18... 18... 18... 1 9 ... 19... 22... ?2... 22... 23... 23... 24... APR 02... 02... 'NlTRO- GFN, N 11 R I T £ DIS- SOLVED (MG/L A^> N(V) ( 71856) 1970 — -- -- — — 1974 -- -- — .03 — — -- .07 — .03 .03 __ .10 .07 .10 .07 .10 .03 — .10 .03 .03 .00 .01 198" .03 .03 .03 .07 .07 .10 — — .10 .16 .13 .07 .07 .03 .03 .03 NITRO- GEN, N02+N03 TOTAL (MG/L AS N) (00630) — -- .79 .53 1.5 1.7 .90 1.1 1.6 1.4 . 79 1.0 1.3 1. 1 .41 .46 1.2 1.2 1.0 1.1 1.4 2.0 l.H — .83 1.2 1.3 1.1 1.4 1.5 1.8 .86 1.2 1 .2 1 .3 -- — 1.5 1.6 1.3 1.6 1.3 1.5 1.4 1.4 NIT"U- GtN, N02*N03 DI3- SOLVED (MG/L AS N) (006 il ) .58 .64 -- -- 1.5 -- -- 1.2 1.6 -- -- -- 1.3 — .41 .45 1.0 1.0 .87 1 .0 1.0 .49 l.H — .39 1.3 1.3 1.1 1.4 1.5 1.9 .88 1.3 1.3 1.3 -- — 1.5 1.5 1.5 1.5 1.5 1.4 1.4 1.4 NITRO- GEN, AMMONIA TOTAL (MG/L AS N) (00610) — -- .04 .01 .03 .08 .16 .07 .02 .05 .08 .01 .0? .02 .07 .04 .87 .05 .10 .01 .13 .90 .66 — .85 .06 .00 .01 .01 .12 .01 .09 .07 .03 .09 -- — .20 .13 .10 .06 .06 .07 .04 .04 NITRO- GEN, AMMONIA DIS- SOLVED (MG/L AS N) (00608) — — — — — — -- — .03 — -- -- .00 -- .01 .00 .01 .08 .08 .00 .06 .25 .01 — .31 .02 .01 .00 .00 .00 .01 .01 .06 .02 .05 -- — .18 .02 .10 .08 .09 .03 .04 .03 NI TRO- GEN, AMMONIA TOTAL (MG/L AS NH4) (71845) — — .05 .01 . 04 .10 .21 .09 .03 . Ob .10 .01 . 02 .02 .08 .05 1.1 .06 .12 .01 .16 1.1 .80 — 1.0 .07 .00 .01 .01 .15 .01 .11 .OH .04 .11 — — .24 .16 .12 .07 .07 .08 .05 .05 NITRO- GFN, AMMONI A DIS- SOLVED (MG/L AS NH4) (71846) — — — — -- — -- -_ .04 -- -- -- .00 — .01 .00 .ul .10 .10 .00 .06 .32 .01 — .40 .03 .01 .00 .00 .00 .01 .01 .08 .03 .06 — — .23 .03 .13 .10 .12 .04 .05 .04 NITRO- GtN. OKGANIC TOTAL (Mt>/L AS N) (00605) — — .32 .55 .30 .31 1.1 .63 .06 .58 .28 .60 .9D .47 .68 .69 2.6 2.4 2.2 .99 2.1 1.3 1.7 — .45 1.1 .22 .43 .11 .17 .28 .26 .36 .47 .64 — — 2.4 1.1 1.9 .53 .77 .39 .13 .24 NITRO- GEN, ORGANIC DIS- SOLVED (MG/L AS N) (00607) — -- -- -- — — -- — .03 — -- -- .42 -- .40 .68 .59 .92 .71 1.0 .54 .68 1.1 — .10 — — -- .10 .26 .34 .32 — .37 .13 — — .77 1.1 .65 .36 .31 .57 .23 .21 NITRO- GEN, AM- MONIA * ORGANIC TOTAL (MG/L AS N) (00625) . 18 .53 .36 .56 .33 .39 1.3 .70 .08 .63 .36 .61 .97 .49 .75 .73 3.5 2.4 2.3 1.0 2.2 2.2 2.4 — 1.3 1.2 .22 .44 .12 .29 .29 .35 .43 .50 .73 — — 2.6 1.2 2.0 .59 .83 .46 .17 .28' NITRO- GEN,NH4 * ORG. SUSP. TOTAL (MG/L AS N) (00624) — .36 .01 .34 .25 .04 1.1 — .02 .35 .27 .21 .55 .36 .34 .05 2.9 1.4 1.5 .00 1.6 1.3 1.3 — .89 .00 .00 — .02 .03 .00 .02 — .11 .55 — — l.T .10 1.3 .15 .43 .00 .00 .04 36 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580)--Continued OATE dCT , 02. .. 04. .. 10... NOV 14... DEC 19... JAM , 16. . . F'FH 27... 01... 19... 27... APR 26... MAY 23... O-i. .. 13... JUL 17... AUG 15... SEP 06.. . 06. .. 06. .. 07... 07... 07. .. 0 7 ... 08.. . 09... OCT 11... 17... NiOV 27... DEC 12... JAN , 14... FFH 11... MAR 11... 18... 18... iM... 19... 22... 22... 22... 23... 23... 24... APR 02... 02... "'ITRO- Gt~ N , AM- MONIA * ORGANIC I' IS. (MU/L AS N) <(.'0623> 1978 -- .17 .35 .22 .08 1979 .35 .22 — .06 .28 .09 .40 .42 .13 .41 .68 .60 1.0 .79 1.0 .59 .93 1.1 — .41 -- .32 -- .10 198" .26 .35 .33 -- .39 .18 _- .95 1.1 .75 .44 .40 .60 .27 .24 NITRO- GEN, TOTAL (MG/L AS M) (00600) — — 1.2 1.1 1.8 2.1 2.2 1.8 1.7 2.0 1.2 1.6 2.3 1.6 1.2 1.2 4. 7 3.6 3.3 2.1 3.6 4.2 4.2 — 2.1 2.4 1.5 1.5 1 .5 1.8 2.1 1.2 1.6 1.7 2.0 — 4.1 2.H 3.3 2.2 2.1 2.0 1.6 1.7 NITRO- GEN, DIS- SOLVED (MG/L AS M) (00602) — -- -- — -- -- — -- 1.7 — -- — 1.7 — .82 1 .1 1.6 ?.o 1.7 2.0 1.6 1 .4 2.9 -- .80 2.6 1.6 -- 1 .5 1.8 2.3 1 .2 — 1.7 1.5 — 2.5 2.6 2.3 1.9 1.9 2.0 1.7 1.6 NITfiO- GEf.', TOTHL (MG/L AS N03) (71887) -- — 5.1 4.8 8.1 9.3 9. 7 8.0 7.4 9.0 5.1 7.1 10 7.0 5.1 5.3 21 16 15 9.3 16 19 19 — 9.4 11 6.7 6.8 6.7 7.9 9.J 5.4 7.2 7.5 9. 0 — 18 12 15 9.7 9.4 8.7 7.0 7.4 PHOS- PHORUS, TOTAL (MG/L AS P) (00665) .06 .04 .04 .04 .07 .06 .41 .11 .05 .14 .00 .09 .18 . 11 .06 .11 .76 .63 .68 .57 .60 .56 .52 -- .26 .22 .06 .02 .02 .04 .04 .02 .08 .10 .14 — 1.0 ,3H .57 .23 .22 .17 .16 .17 PhOS- PriOPUS TOTAL (MG/L AS P04) (71886) .18 .12 .12 .12 .21 .18 1.3 .34 .15 .43 .00 .28 .55 .34 . 18 .34 2.3 1.9 2.1 1.7 1.8 1. 7 1.6 -- .80 .67 .18 .06 .06 .12 .12 .06 .25 .31 .43 — 3.1 1.2 1.7 .71 .67 .52 .49 .52 PHOS- PHORUS. DIS- SOLVED (MG/L Ab P) ( 00666) .01 .00 .1)1 .01 . 06 .05 .06 ,04 .03 .03 .00 .0 1 .05 .04 .01 .0 1 -- .06 .OH .1? .1 1 .17 .09 -- .10 .10 .03 .01 .02 .03 .03 .02 .05 .03 .03 — .07 .06 .08 .05 .04 .04 .03 .03 PHOS- PHORUS, ORTHO. TOTAL (MG/L AS P) ( 70507) -- -- — . O'D -- . 04 .02 — — — .02 — .02 .04 — .05 .08 .06 .05 .12 .or — .23 .07 .00 .00 .05 .02 .02 .00 .01 .00 .01 — .16 ,12 .11 .04 .03 .08 .02 .01 PHOS- PHORUS, OkTHO, DIS- SOLVED (MG/L AS P) (00671) — — -- — .04 — -- .03 .02 .01 .00 .00 .01 .03 .00 .00 — .03 .03 .03 .04 .04 .02 — .04 .04 — .00 .00 .03 .01 .01 .01 .00 .01 .03 .03 .08 .05 .06 .00 .03 .02 PHOS- PHATE, ORTHO. DIS- SOLVED (MG/L AS P04) (00660) — — — -- .12 -- — .09 .06 .03 .00 .00 .03 .09 .00 .00 — .09 .09 .09 .12 .12 .06 — .12 .12 — .00 .00 .09 .03 .03 .03 .00 .03 .09 .09 .25 .15 .18 .00 .09 .06 ALUM- INUM, TOTAL RECOV- ERABLE CJG/L AS AD ( 01105) — — — — 200 — — ?500 190 — 80 130 2400 830 220 170 13000 12000 9800 7000 7100 7700 7700 — 3100 1600 900 400 300 200 — 200 500 700 600 15000 11000 8000 2400 2000 1700 2200 2200 37 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580)--Continued DA1E ('Cl , OS. . . 04.. . 10... NOV It... DEC JAM > 16... FEH ALUM- INUM. SUS- PENDED RECOV. (Ob/L Ob AL) (01107) ALUM- INUM, DIS- SOLVED (UG/L AS AL ) (OHOb) ARSENIC TOTrtL (U3/L AS AS) (01012) ARSENIC SUS- PENDED TOTAL (UG/L AS AS) (01CI01) ARSENIC DIS- SOLVED (US/L AS AS) (01000) BARIUM, TOTAL RECOV- ERABLE (UG/L AS BA) (01007) BARIUM, SUS- PENDED RECOV- ERABLE (UG/L AS BA) (01006) BARIUM, DIS- SOLVED (ua/L Ab rtA) (0100S) BERYL- LIUM, TOTAL RECOV- ERABLE (UG/L AS BE) (01013) CADMIUM TOTAL RECOV- ERABLE (UG/L AS CD) (01027) CADMIUM SUS- PENDED RECOV- ERABLE (UG/L AS CD) (01026) 1978 170 1979 30 1 100 0 100 MAR 01... 19... 27... APR 26... MAY JUN 05... 13... JUL 17... AUb SEP 06. . . 06... 06. . . 07.. . 07... or... 07... 08. . . 09. . . OCT 11... 17... NOV 27... DEC 12... JAN , 199() 14... FEfl 11... MAR 11... 18... 1H... 18... 19... 19... 22... 22... 22... 23... 23... 24... APR 02... 02... ?500 30 40 0 80 2400 7HO 170 120 13000 12000 9800 7000 7100 7700 7700 80 so 40 bO hU 50 DO 40 40 40 JO 40 30 1300 800 200 0 100 100 400 600 500 15000 11000 7900 2100 1600 1600 2100 2100 300 100 200 300 100 200 100 100 100 100 100 60 60 300 400 100 100 100 1 100 100 1 200 200 30 0 40 38 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580)--Continued CADMIUM DIS- SOLVED (Ufa/L DATE AS CU) (01025) OCT , 1978 10... NOV DEC 19... j JAN , 1979 16... FFh 27... 27... 27... 27... 27... MAN 01... 19... 27... 0 APR 2b... MAY 23... JUN 05... 13... 0 JUL 17... 17... AUG 15... SEP Ob. . . 1 06... 06. .. 07... 07... 07... 07... 09... 09.. . OCT 11... 17... NOV 27... DEC 12... 2 JAN , 19HO 14... 11... MAR 11... 12 18... 18... 18... 19... 22... 22... 22... 23... 23... 2*... APR 02... 02... CHRO- CHRO- MIUM, MIUM, CHKO- TOTAL SUS- MIUM, PECOV- PENUEO DIS- FKABLE RECOV. SOLVED (UG/L (UG/L (UG/L Ab CR) AS CR) Ab CR) (01034) (01031) (01030) — <10 <10 0 — — -- — — — 10 <10 20 10 10 10 -- — ?0 0 30 20 — — — 20 40 20 20 — — — — — — — — — o 8 20 10 10 11 — 10 0 <10 — — — -- — _- __ -.- .- 1 7 5 CORSLT, COBALT, SUS- COPPER, TOTAL PENUEO COBALT, TOTAL RECOV- RECOV- DIS- RECOV- ERABLE ENABLE SOLVED ERABLE (UG/L (UG/L (UG/L (UG/L AS CO) AS CO) AS CO) AS CU) (01037) (0103h) (01035) (01042) — 1010 — — — — -- -- 10 4 4407 4 -- 2029 4 4 19 19 0 34 — __ — — — — — — — 3 3 0001 3 0011 — — -- — -_ __ -- -- .. 5 5 b COPPER, SUS- IRON, PENOED COPPER, TOTAL RECOV- DIS- RECOV- ERABLE SOLVED ERABLE (UG/L (UG/L (UG/L Ab CU) AS CU) AS FE) (01041) (01040) (01045) -- 0 0 310 — — -- — — — 5200 430 h 1 4300 290 530 4500 « 1 1800 450 — — — 940 31 3 23000 24000 20000 14000 14000 15000 16000 6300 — 3900 1000 — 0 1 130 200 -- 0 2 230 820 1000 1100 — 30000 22000 1*000 3600 2900 2700 70 80 IRON, SUS- PENDED RECOV- ERABLE (UG/L AS FE) (01044) _. 40 ._ — — -- — 5200 P90 4300 ^40 520 4400 laoo 450 — 920 23000 24000 20000 14000 14000 15000 16000 6200 6300 3aoo 1000 100 160 200 790 960 1100 __ 30000 22000 14-000 3600 2800 2700 10 20 39 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580)---Continued DATE CCT , 10.. NOV 14.. DEC 19.. JAN , 16.. FEH 27. . 27.. 27.. 27.. MAR 01.. 14.. 27.. APR 26. . MAY 23.. JUN Ob. . 13.. JUL 17.. 17.. AUfa 15.. SEP 06. . 06.. 06. . 07.. 07.. 07. . 07. . 09. . 04. . OCT 11.. 17.. NOV 2 I . . DEC 12.. JAN , 14.. FEB 11.. MAR 11.. 1H. . la.. 1H. . I-*.. 19.. 22.. 22.. 22.. 23.. 23.. 24. . APR 02.. 02.. IRON. DIS- SOLVED (UG/L AS FE) ( 1)1046) 197rt . . 270 1974 . . . . . ' bO 140 20 50 10 70 0 1 . 20 0 130 60 WO bO HO 110 bO . 70 40 30 30 1 9ft 1 40 20 30 JO 40 30 . . 60 40 180 30 100 40 60 60 LEAD, TOTAL RECOV- ERABLE (UG/L AS PB) (01051) -- — 38 — -- — — — tt 7 38 4 — — 59 30 — 13 130 — -- -- — — — -- — — 9 3b 9 10 -- 0 82 11 b 9 a 24 0 0 11 69 7 12 9 LEAD, SUS- PENDED RECOV- ERABLE (UG/L AS PB) (01050) -- — 33 — -- -- — -- -- -- 3b -- -- -- bO -- -- -- 120 — -- — — -- — -- -- -- — — 4 -- -- 0 22 0 0 9 8 24 0 0 3 68 — -- — LEAD, DIS- SOLVED (UG/L AS PS) (01049) -- -- b — — — — -_ — — 3 -- — -- 9 — — — 6 — — — — -- — — -- -- -- -- 0 -- -- 0 60 16 7 0 0 0 0 0 8 1 — — — MANGA- NESE, TOTAL RECOV- ERABLE (UG/L AS MN) (01055) — -- 30 -- -- — -- — 190 40 ?20 30 40 190 110 90 — 90 1200 990 850 600 650 710 650 370 -- 170 60 20 10 20 -- 40 70 80 100 — -- 970 780 600 230 200 160 200 220 MANGA- NESE, SUS- PENDED UECOV. (UG/L AS MN) (01054) — — 10 — — — -- ~ — 170 21) 220 30 40 170 100 90 — 40 1200 9HO 850 590 640 700 640 370 — 160 60 20 1 10 -- 20 50 50 80 -- — 970 770 590 220 190 160 190 210 MANGA- NESE, DIS- SOLVED (UG/L " AS MN) (01056) — — 20 -- — — — — 20 20 3 0 3 20 10 2 — 3 6 8 3 7 10 10 6 4 — 10 b 4 9 10 10 20 20 JO 20 -- -- 5 10 10 7 8 5 7 9 MERCURY TOTAL RECOV- ERABLE (UG/L AS HG) (71900) — — < .5 — -- -- — — — <.5 <.b .5 .5 — — < .5 <.5 — <.5 < .b — — — — — — — — — <. 1 <. 1 •1 <• 1 <. 1 .1 — — — — — -- — -- -- -- <• 1 .1 .1 MERCURY SUS- NICKEL, PENDED MERCURY TOTAL KECOV- OIS- RECOV- ERABLE SOLVED EPABLE (UG/L (UG/L (UG/L AS HG) AS HG) AS NI) (71H95) (71890) (01067) 15 .0 .5 . 0 < . 5 30 21 IB 11 4 5 24 40 ------- SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 Potomac River at Chain Bridge at Washington, D.C. (01646580)--Continued SELE- N I UNI * TOTAL (UG/L (1ATE AS SE) (f. 1147) OCT , ]97h 10... MOV 14... DEC 19. . . 0 JAN . 1979 lf>. . . FEn 27... ?7. . . 27... 27... 27. .. MAP 01. .. 0 1 9 ... II 27... 0 APR 26.. . 0 WAV 23... JUN 05... 13... 0 JUL 17... 0 17... AUG 15. .. 0 SEP 06. .. 0 Oo. . . Ob... 07... 07... 07. .. 07... 09... 09... UCT 11... 17... NOV 27... DEC 12... 0 JAN , 1980 14... FEB 11... MAR 1 1 ... 0 1M... 18... 18... 19... 19... 22... 22... 22... 23... 23... 84... APR 02... 02... SELfc- SILVER, NIUM, SELE- SILVEK, SOS- ZINC, SUb- NIUM, TOTAL PEMOED SILVEP, TOTAL PENDED DIS- RECOV- RECOV- OIS- RECOV- TOTAL SOLVED EPAHLE ERABLE SOLVED ERABLE (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS SE) AS bE) AS AG) AS AG) Ab AG) AS ZN) (01146) (01145) (01077) (01076) (01075) (0109^) .- — 0 10 0 0 0 30 — -- — -- — — 30 30 0 0 0 0 0 50 JO — — 0 0 0 0 0 40 1.) — 30 00000 150 -- — — — — — — — — — — — ~- — — — — -- -- 10 0 -- — 10 0 0 0 0 0 10 20 -- 0 0 0 0 0 10 — — — — — — — -- -- — -- -- — _ __ ._ -- — — __ -- ._ -- — -- -- 0 — — 20 0 — -- 30 0 — — 30 ZINC, SED. SUb- SUSP. PENUED ZINC, SIEVE RECOV- DIS- DIAM. ERABLE SOLVED % FINER (UG/L (UG/L THAN AS ZN) AS ZN) .062 MM (01091) (01090) (70331) 100 100 50 0 100 83 71 87 90 86 86 86 — 40 10 91 100 9? 98 40 i 98 96 94 85 70 80 92 — — — 90 — — — — — — — — 94 90 0 10 83 100 46 10 0 95 — — -- -_ «•— •— w — •— v~ __ ™~ — — V— -- -- -_ -— — — __ — — — — _~ -- — — — — — — — SEDI- MENT, SUS- PENDED (MG/L) (80154) 56 11 10 1 3 466~— 480 423 425 58j 178- - — 209- - t, 24 134 47 19 15 <->5 947- - 786 — -- S26 . — 560 — — -_ 32 9 3 15 4 4 — — ... __ __ -i_ __ ^— ^_ __ — 41 ------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500) DATE OCT , 04.. NOV Oh. . DEC Ob.. JAN . 09.. FEr) Ob. . MAR 06. . APR 13.. 27.. MAY 07.. IB.. JUN 1?. . 22.. JUL 03.. AUt> 10.. 21.. SFP 07.. 24.. ucr 11.. 24.. MOV 13.. 19.. DEC 06.. IB. . JAN < 15.. 2b.. FE8 an.. 22.. MAK Of,.. 14.. 20.. 31.. APR 01.. TIME 197rt 1245 1230 1230 1979 1230 1315 1?00 1313 1200 1230 1215 1230 1415 1400 1245 0930 0730 IbOO 0900 1430 1400 0900 1310 1300 19SM 1400 1230 1300 1330 1400 1230 103U 1300 1045 bTREAM- FLOn. INSTAN- T/SNEOUb (CFS) (00061) 1030 1170 4230 12600 572(1 63300 8240 6970 7580 10100 10300 6400 4300 2030 2500 56900 35900 25500 7360 20100 9510 6580 5190 32000 15400 6620 5360 13600 12800 31000 20500 23100 SPE- CIFIC CON- DUCT- ANCE (MICKO- "HOb) (00095) 220 303 205 95 112 75 132 140 135 98 130 145 143 195 190 85 113 105 132 143 138 160 155 105 110 140 170 100 102 95 125 130 PH (UNITS) (00400) 7.1 7.5 7.4 6.8 7.6 7.3 7.6 6.3 6.3 6.8 7.6 fl.O 8.6 7.7 7.2 6.5 7.3 7.1 7.4 7.5 7.1 7.3 7.5 6.9 6.7 6.6 7.2 6.9 7.3 7.3 7.0 6.9 TEMPER- ATURE (DL6 C) (00010) 19.5 14.0 11.0 3.5 2.0 9.0 14.5 18.0 18.5 Id. 5 22.0 22.5 25.0 27.5 26.0 20.0 17.5 12.5 16. n 10.5 9.0 5.0 4.0 5.0 6.0 2.0 8.5 5.5 7.0 8.0 10.5 9.5 TUR- HlD- ITY (MTU) (00076) 1.0 2.0 b.O JO 6.0 B.O 3.0 — 3.0 — 25 4.0 3.0 1.0 — — 100 30 — 1.0 — -- — o.O — 2.3 — — — — — — OXYGEN, DIS- SOLVED (MG/L) (00300) 8.2 10.8 11.0 12.5 14.1 11.5 8.2 -- 9.7 9.2 10.2 10.5 10.1 8.6 7.7 8.1 8.5 9.8 9.2 10.7 — 12.o 1 3.4 13.2 12.7 13.? 12.4 13.6 12.2 11.6 12.4 11.2 COLI- FOKM, FECAL, 0.7 UM-MF (COLS./ 100 ML) (31625) 86 <10 290 370 39 3100 61 — ------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500)--Continued MAGNE- SOUIUM POTAS- CHLO- FLUO- SILICA, CALCIUM SIUM, SODIUM, AD- SIUM, ALKA- SULFATE RIDE, KIDE, DIS- UIS- OIS- DIS- SOHP- DIS- UNITY DIS- DIS- DIS- SOLVED SOLVED SOLVED SOLVED TION SOLVED (MG/L SOLVED SOLVED SOLVED (MG/L MG/L (MG/L (MG/L SODIUM RATIO (MG/L AS (MG/L (MG/L (MG/L AS DATE AS CA) AS MG) AS NA) PERCENT AS K) CAC03) AS S04) AS CD AS F) SI02) (00915) (00925) (00930) (00932) (00931) (00935) (00410) (00945) (00940) (00950) (00955) OCT . 197" 04. . . NOV 06... DEC 05... JA'M , 197^ 09... FEd 06... MAK 06.. . APR 1 i. . . 27... MAY 07... l«... JllN l?... 22... JUL 03.. . AUG 1 0 ... 21... StP 07... 24... OCT 11... 24... NOV 13... 19... DEC Ob. . . IS. . . JAN , 19»n 15... 2b. . . FEH 0«. .. 2?... MAK 06. .. 14... 20... 31... 01... 21 31 20 9.7 14 8.4 16 -- 16 — 16 19 Itt Itt — — 13 11 — 16 -- — 19 12 13 17 20 — 12 11 14 14 5.1 5.9 4.5 2.7 3.2 1.9 3.5 — 3.2 — 3.2 4.1 3.7 4.1 -- — 2.1 2.5 -- 3.4 — -- 3.9 2.6 2.6 3.9 4.2 -- 2.7 2.0 2.9 3.1 13 16 12 3.4 4.6 2.5 4.5 -- 4.5 -- 3.4 4.9 5.5 7.8 — — 2.6 3.2 — 4.4 — -. 5.8 3.6 2.6 4.8 5.6 -- 3.7 2.5 3.1 3.5 27 25 27 17 17 14 15 — 14 — 12 14 16 21 — — 12 15 — 19 — — 20 20 14 15 15 — 16 13 12 13 .7 .7 .6 .2 .3 .2 .3 — .3 — .2 .3 .3 .4 — -- .2 .2 — .3 — -- .3 .2 .2 .3 .3 — .3 .? .2 .2 2.7 2. a 2.8 1.3 1.3 3.0 1.2 -- 7.0 — 1.4 2.0 2.5 2.4 — -- 1.5 1.4 — 1.5 -- — 1.6 1.3 1.0 1.1 1.2 — .9 1.0 1.1 l.U 62 67 54 25 35 21 42 -- 42 — 45 62 63 51 — — 30 31 — 41 -- 50 34 40 51 57 — 37 29 35 43 21 19 15 8.5 9.0 7.7 9.3 -- 8.4 — 8.0 9.7 9.7 13 — — 9.5 6.9 — 8.2 — — 9.0 9.8 8.5 10 9.0 -- 7.9 7.9 7.1 7.4 14 28 1H 4.2 6.1 5.8 6.0 — 12 — 4.3 5. a 8.2 13 -- — 3.0 3.5 — 6.0 — — 7.6 6.2 3.9 7.2 9.3 — 5.0 3.1 4.3 4.9 .1 .1 .1 .1 .1 .0 .1 — .0 — .1 .1 .1 .1 -- — .1 .1 — .1 — — .1 .1 .1 .1 .1 — .1 .1 .1 .1 8.1 b.O H.Z 8.7 9.5 7.3 6.7 — 6.6 — 8.3 6.9 6.3 7.8 — — 6.6 9.3 — 8.0 -- -- 8.0 7.2 7.6 fl.5 7.2 -- 7.5 6.1 7.6 7.8 43 ------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500) --Continued 3'iLIDS, SOLIDS, RESIDUE SUM OF SOLIDS, 41 161) CONSTI- DIS- utG. C TUENTS, SOLVED DIS- DIS- (TONS SOLVED SOLVED PER DATE (MG/L) (MG/L) AC-FT) (70300) (70301) (70303) UCT , 1978 04... 137 122 .19 NOV 06... 149 149 .2(1 DEC 05... 124 113 .17 JAN , 1974 1)4... 6S 54 .09 FEU 06.. . 72 64 .10 MAR 06... 70 49 .10 APR 11... 81 73 .11 27. . . 75 -- .10 MAY 07... B5 83 .12 18... 70 -- .10 JUN 12... 76 72 .10 22... 41 41) .12 JUL "3... 44 42 .13 AUG 10... 113 97 .15 21... SFP O/... 24... 66 bb .09 OCT 11... 6S 58 .09 24... NOV 13... n 73 .10 14... DEC 06... 18... JAM , 1980 15. . . 77 25... FEH 08... 81 22... MAR 06.. . 14... 20... 31... APR 01... — 87 65 65 H5 92 -- 64 53 0 69 -- . 12 .10 .09 .11 .13 — .09 .07 .00 .09 NITRO- MITHO- NITRO- N1TRO- SOLIDS, SOLIDS, NITRO- GEN, GEN, NITRO- GEN, GEN, DIS- RESIDUE GEN, NITRATE NITRATE GEN, NITRITE NITRITE SOLVED AT 105 NITRATE DIS- DIS- NITRITE DIS- DIS- (TONS OEG. C, TOTAL SOLVED SOLVED TOTAL SOLVED SOLVED PER TOTAL (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L DAY) (MG/L) AS N) AS N) AS N03) AS N) AS N) AS N02) (70302) (00500) (00620) (00618) (71851) (00615) (00613) (71856) 381 1420 2140 1110 12000 1800 141o 1740 1910 2110 !570 1090 619 132 .26 .26 1.2 .01 .01 .03 236 .34 .33 1.5 .02 .00 .00 b400 4680 88 .26 .26 1.2 .01 .00 .00 3960 79 .25 .15 .66 .00 .00 .00 — 1220 6650 2700 1450 1330 — 2210 4440 .00 4300 -- 96 — 86 -- 104 70 34 80 81 — .35 .31 2.1 .33 .25 — .27 .32 3.8 .33 — .33 .32 .27 .34 .26 .24 .29 .32 .36 .34 — 1 .5 1.4 1.2 1.5 1.2 1.1 1.2 1.4 <1 .6 1.5 — .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 — .01 .01 .01 .01 .01 .00 .01 .01 .00 .01 — .03 .03 .03 .03 .03 .03 .03 .03 .03 .03 ------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500)--Continued DATE OCT , 04. .. NOV 06.. . DEC Ob... JAN , 09... FEH 06. . . MAk 06. . . APR 13... 27... MAY 07... 18... JUN 12... 2?... JUL (J3... AUG 1 0 ... 21... SEP 07... 2*... OCT 11... 24. .. NOV 13... 14... DEC 06. .. 18... JAN . 15... 2b... FEH OH, . . 22... MAR 06.. . 14... 20... 31... APR 01... NITRO- GEN. NU2»N03 TOTftL (MG/L Ab N) (00630) I97rt .35 .03 .46 197^ .44 .51 .46 .2J .13 .28 .28 .59 .21 .07 .10 .27 .36 .29 .28 .27 .22 .2*, — .35 1980 .31 2.1 .34 .26 -- .28 .33 3.8 .34 NITRO- GEN, N02*N03 DIS- SOLVED (MG/L AS M) (00631 ) -- — — -- — — — — -- — — — — -- .27 .33 .22 .28 .26 .18 .15 — .34 .33 .28 .35 .27 .25 .29 .33 .37 .35 NITRO- GEN, AMMONIA TOTAL (MG/L AS N) (00610) .02 .03 .05 .04 .06 .09 .01 .03 .01 .00 .23 .02 .05 .03 .03 .15 .04 .04 .00 .01 .03 -- .00 .11 .00 .06 .01 — .00 .06 .25 .01 NITRO- GEN. AMMONIA DIS- SOLVED (MG/L Ab N) (00608) -- — — -- — — — — — -- — -- -- — .00 .04 — .00 .01 .02 .00 — .01 .00 .01 .06 .01 .00 .00 .06 .02 .02 NITRO- GEN, AMMONIA TOTAL (MG/L Ab NH4) (71845) — — — — — — .01 — .01 — .2H .02 .06 .04 .04 .18 .05 .05 .00 .01 .04 -- .00 .13 .00 .07 .01 -- .00 .07 .30 .01 NITRO- GEN, AMMONIA DIS- SOLVED (MG/L AS NH4) (71846) — — — — — — — — -- — — — — — .00 .05 — .00 .01 .03 .00 — .01 .00 .01 .08 .01 .00 .00 .Ob .03 .03 NITRU- GEN, ORGANIC TOTAL (MG/L AS N) (00605) .23 .32 .19 .30 .25 .72 .00 .40 .28 .6? .25 .31 .23 .32 .15 1.3 .91 .37 .21 .26 .35 -- .?0 .43 .73 .14 .78 — .19 .71 .10 .23 NITHO- GEN, ORGANIC DIS- SOLVED (MG/L AS hi) (00b07) — — — — — — — — — — — — — — .13 .81 — .18 .37 .28 .31 — .11 .35 .27 .07 1.3 — .14 .39 .18 .12 NITRO- GEN, AM- MONIA * ORGANIC TOTAL (MG/L AS N) (00625) .25 .35 .24 .34 .31 .81 .00 .44 .29 .62 .48 .33 .28 .35 .18 1.4 .95 .41 .21 .27 .38 — .20 .54 .73 .20 .79 -- .11 .77 .35 .24 NITRO- GEN, NH4 » ORG. SUSP. TOTAL (MG/L AS N) (00624) .00 .15 .11 .22 .18 .44 .00 — .00 — .37 .22 .17 .28 .05 .55 .85 .23 .00 .00 ,07 — .08 .19 .45 .07 .00 — .05 .32 .15 .10 NITRO- GEN, AM- MONIA + ORGANIC DIS. (MG/L AS N) (00623) .29 .20 .13 .12 .13 .37 .04 — .29 — .11 .11 .11 .07 .13 .85 .10 .18 .38 .30 .31 — .12 .35 .28 .13 1.3 — .14 .45 .20 .14 45 ------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500] --Continued DATE OCT , 04... MJV 06. . . DEC 05... JAN , 09. . . FEH Ob... MAR 06... APR 13... 27... MAY 07... IB... JUN 12... 22... JUL 03... AUG 10... 21... SEP 07... 24... OCT 11... 24... NOV 13... 19... DEC 06... 18... JAN , 15... 2b... FEcl On, . . 22... MAR 06... 14... 20... 31... APR 01... NITRO- GEN* TOTAL (MG/L AS N) (00600) 197K .60 .38 . 70 1979 .78 .82 1.3 .23 .57 .57 .90 1.1 .54 .35 .45 .45 1.8 1.2 .69 .48 .49 .63 — .55 1980 .85 2.8 .54 1.1 — .47 1 .1 4.1 .58 NITRO- GEN. DIS- SOLVED (MG/L AS N) (00602) — — -- — — -- — -- — — -- -- — — .40 1.2 .32 .46 .64 .48 .46 — .46 .69 .56 .46 1.6 — .43 .78 .57 .49 NITrtO- 6EN. TOTAL (MG/L AS N03) (718^7) 2.7 1.7 3.1 3.5 3.6 5.6 1.0 2.5 2.5 4.0 4. 7 2.4 1.6 2.0 2.0 7.8 5.5 3.1 2.1 2.2 2.8 — 2.4 3.8 13 2.4 4.6 — 2. 1 4.9 18 2.6 PHOS- PHORUS, TOTAL (MG/L AS P) (00665) .12 .15 .12 .10 .05 . 15 .06 .05 .07 .07 .09 .07 .04 .09 .10 .48 .33 .12 .07 .09 .06 — .07 .12 .05 .07 .OR — .06 .24 .09 .16 PHOS- PHORUS TOTAL (MG/L AS P04) (71886) — — — -- — -- .!« — .21 — .28 .21 .12 .28 .31 1.5 1.0 .37 .21 .28 .IB — .21 .37 .15 .21 .25 — .18 . 74 .28 .49 PHOS- PHORUS, DIS- SOLVED (MG/L AS P) (00666) .10 .14 .10 .02 .03 .03 .05 .OJ .15 .05 .03 .04 .02 .09 .09 .05 .04 .03 .06 .05 .04 — .07 .03 .03 .05 .06 — .02 .02 .03 .05 PHOS- PHORUS, ORTHO. TOTAL (MG/L AS P) (70507) -- — — — — -- .03 .03 — .03 .02 .03 .03 .07 .07 .07 — -- .05 — .03 — .06 .05 .03 .03 .04 .02 .02 .19 .00 .05 PHOS- PHORUS, ONTHO, DIS- SOLVED (MG/L AS P) (00671) — — — — — — .03 .02 — .04 .02 .03 .02 .07 .06 .01 — — .04 -- .01 — .05 .02 .03 .02 .03 .01 .01 .22 .02 .04 PHOS- PHATE, ORTHO, DIS- SOLVED (MG/L AS P04) (00660) — — — — — — .09 .06 -- .12 .06 .09 .06 .21 .18 .03 .. — .12 — .03 — .15 .06 .09 .06 .09 .03 .03 .67 .06 .12 ALUM- INUM, TOTAL RECOV- ERABLE (UG/L AS AD (01105) — — — — — — 4 500 — 700 — — — — 10 6700 — — 700 — 600 — 600 1900 500 200 300 1800 500 2500 1100 1100 ALUM- INUM, SUS- PENDED RECOV. (UG/L AS AL) (01107) -- — — — — — 0 400 -- 400 -- -- — — 0 6300 — — 500 -- 0 — 300 1700 400 100 100 1700 300 2300 900 900 46 ------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500)--Continued DATt cLUM- 1MUM, DIS- bOLVEO (UG/L ub AD (01 106) ARSENIC TOTAL (UG/L AS AS) (01002) ARSENIC SUb- PENOED TOTAL (U6/L AS AS) (01001) ARSENIC DIS- SOLVED (Ufa/L AS AS) (01000) BARIUM, TOTAL RECOV- ERABLE (UG/L AS BA> (01007) BARIUM, SUS- PENDED RECOV- ERABLE (UG/L Ab BA) (01006) BARIUM, DIS- SOLVED (UG/L AS 8A) (01005) CADMIUM TOTAL RECOV- ERABLE (US/L AS CD) (01027) CADMIUM SUS- PENDED RECOV- ERABLE (UG/L AS CD) (01026) CADMIUM DIS- SOLVED (UG/L AS CD) (01025) CHRO- MIUM, TOTAL RECOV- ERABLE (UG/L AS CR) (01034) OC T , 197-< 0 * ... NOV Ob... DEC 05... JAN , 1979 09... FEri 06. . . MA« 06... APR 13... 27... MAY 07... In... JUN 12... 22... JUL 03... AUG 10... 21... SEP 07... 24... OCT 11... 24... NOV 13... 19... DEC 06.. . IB.. . JA'------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH 4.PRIL 1980 James River at Cartersville, Virginia (0203500)--Continued DATE OCT , 04. ., NOV Ob. . . DEC 05. . . JAN , 09. . , f£* Ol. . , 06. .. APR 13.., 27.., CHHO- "UUM, SUS- PENDED -ftCOV. (UG/L AS CR) (Ul031) CHRO- COBALT, MIUM. TOTAL COHALT, sub- PENDFD COBALT, COPPER, IRON, COPPhR, SUS- IRON, SUb- TOTAL PFNDEO COPPER, TOTAL PENDED IRON, DIS- RECJV- RECOV- DIS- RtCOV- RECOV- UIS- KECOV- RECOV- DIS- SOLVED ERAdLE EKAPLE SOLVED ERAbLE ERABLE SOLVED ERABLE ERABLE SOLVED (UG/L (Ub/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS CR) AS CU) Ab CO) AS CO) AS CU) AS CU) AS CU) AS EE) AS FE> AS FE) (01030) (01037) (OJOJ6) (01035) (0104). 21. S£P 07. 24. 24. OCT 11. ?4. NOV 13. 14. DEC Oh. IX. JA J 0 8 ... MAR Oh. .. 14... 20... 31... APR 01... 20 10 10 2 10 30 20 lu 1000 2100 710 360 14000 10000 600 10 510 320 12000 1100 290 370 3600 1200 5000 2200 1700 900 2000 660 330 14000 10000 500 1BOO 420 210 12000 1000 230 320 3500 1200 4900 2200 1700 100 60 50 30 300 110 100 60 90 110 200 80 60 110 50 HO 10 40 48 ------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500)--Continued DATE LEAD, TOTAL RECOV- ERABLE I JG/L As Pti) LEAO, SUS- PENDED RECOV- ERABLE (UG/L AS P8> LEAO. DIS- SOLVED (UG/L AS PH ) MANGA- NESE, TOTAL RECOV- ERABLE (Ufa/L AS MN> MANGA- NESE, SUS- PENDED RECOV. (UG/L AS MN) MANGA- MEbE, DIS- SOLVED (UG/L AS MM) MERCURY TOTAL RECOV- ERABLE (UG/L AS MJ} MERCURY SUS- PENDED RECOV- ERABLE (UG/L AS HG) MERCURY DIS- SOLVED (UG/L AS HG) NICKEL, TOTAL RECOV- ERABLE (UG/L AS NI) SELE- NIUM, TOTAL (UG/L AS SE) (01050) (01049) (01055) (01054) (01056) (71900) (71M95) (71O90) (01067) (01147) OCT 0*. NOV 06. DEC 05. JAM 09. 20 20 .0 <.i> 0 6 . MAR 0*1. APK U. 27. MAY 01. 1H. JUN 12. ?<;. JUL (1 3 . AUG 10. 21. bEP 0 7 . Vt. ?*. UC1 11. ?.<\. NOV 13. IV. DEC 06. 18. JAM Ib. ?S. FEH U 8 . 22. MAR Ob. l------- SUPPLEMENTAL DATA C: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980 James River at Cartersville, Virginia (0203500)--Continued SELE- NIUM, SUS- PENDED TOTAL (UG/L UATt AS SE) (01 146) DC 1 , 1978 04. . . 'lOV U6. . . DEC Ob. . . 0 JAN . 1979 09. . . FF.H 06. .. MAK 06. .. 0 APP. 13... 27... MAY 07... JUN 12... 0 22... 0 JUL 03... AUb 10... 21.. . SEP 07... 24... 24. .. 0 OCT 11.. . 24... NUV 13... 0 GET 06. . . 18... JAN . 1980 Ib... 2b... FE>- OH... 0 22... MAP 06... 14... 20... 31... APH 01... bILVEP, SELF.- SILVER, SUS- ZINC, NIUM. TOTAL PENDED SILVEP, TOTAL OIS- 4ECOV- RECOv- DIS- HFCOV- SOLVED EKAHLE ERABLE SOLVED EKABLE (UG/L (UG/L (Ub/L (Ub/L (UG/L AS St) Ab AG) AS AG) AS Aft) AS ZN) (Oll4b) (01077) (01076) (0107b) (01092) — — 0 0 0 0 30 __ __ 0 U 0 0 60 — — — 0 0 0 0 80 0 0 0 0 30 — — — — — 0 0 0 0 50 — — 0 0 0 0 20 — — 30 — -_ — — — 0 0 0 0 40 — 150 __ __ — — ZINC, SUS- PENDED RECOV- ERABLE (UG/L AS ZN) (01091) — — JO -- -- 60 -- — -- 70 20 -- — -- -- -- 40 20 -- -- -- — 20 -- — -- -- -- -- SED. SUSP. ZINC, SIEVE DIS- DIAM. SOLVED % FINEP (UG/L THAN AS ZN) .062 MM (01090) (70331) 100 48 0 100 64 68 0 100 — 100 b 93 10 91 100 __ — 91 10 49 -- J b? 86 — 72 — — 20 100 — — — — — — SEDI- MENT, SUS- PENDED (MG/L) (80164) 3 6 34 87 12 — 19 f, 6? — 1* 2 2" — 294 — IbO 16 b4 7 — 157 — 3 — — — — — — 50 ------- SUPPLEMENTAL DATA D: PESTICIDE DATA Susquehanna River at Conowingo, Maryland (01578310), November 1978 through April 1980 DATE -MM , 09. . DEC 21.. 21.. JAM , 10.. 10.. 29.. 29.. (• tR 28.. i-i A R 28.. 23.. "AY 22.. JUN 26.. JUL £4. . AUG 17.. btP 04.. "CT 16.. ^ 0V 13.. UEC 11.. JAM , 15.. 29.. FEh 12.. MAR 10.. 22.. 24.. APR 02.. TIME 1978 1115 1000 1100 1979 1030 1 1 Ib 1015 lllb 094b 1000 1230 1100 1030 1200 1230 1100 1030 1200 1145 19flO 1030 1100 1130 1000 1500 1320 1200 PCB, ALDRIN, TOTAL TOTAL (UG/L) (UG/L) (39516) (39330) .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 .0 .00 ATRA- ZINE, TOTAL (UG/L) (39630) .00 .10 .00 — .00 .00 .00 .00 .00 .00 .20 .30 .50 .20 .10 .10 .00 .00 .10 .00 .00 .10 .10 .10 .00 CHLOR- DANE, TOTAL (UG/L) (39350) .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 ODD, TOTAL (UG/L) (39360) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 DDE, TOTAL (UG/L) (39365) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 DDT, TOTAL (UG/L) (39370) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 01- ELtlRIN TOTAL (UG/L) (39380) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 51 ------- SUPPLEMENTAL DATA D: PESTICIDE DATA--Continued Susquehanna River at Conowingo, Maryland (01578310), November 1978 through April 1980--Continued DATE I^OV . 09.. DEC 21.. 21.. JAN , 10.. 10.. 29.. 29.. FEH 28.. 28.. AMR 23.. MAY 22.. JUN 26.. JUL 24.. AUG 17.. bEP 04.. OCT 16.. 'MOV 13.. UEC 11.. JAN . 15.. 39.. HER 12.. MAR 10.. 22.. 24.. APR 02.. ENDO- bULFANt TOTAL (UG/L) (39388) 1978 .00 .00 .00 1979 .00 .00 .00 .00 .00 .00 .00 .00 .00 .no .00 .00 .00 .00 .00 19dO .00 .00 .00 .00 .00 .00 .00 ENDRIN, TOTAL (UG/L) (39390) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 HEPTA- CHLOR, TOTAL (UG/L) (39410) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 HEPTA- CHLOR EPOXIDE TOTAL (UG/L) (39420) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 LINOANE TOTAL (UG/L) (39340) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 METH- OXY- CHLOR, TOTAL (UG/L) (39480) — -- -- — — -- — — — — — -- — — — .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 MIREX, TOTAL (UG/L) (39755) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 MAPH- THA- LENES, POLY- CHLOR. TOTAL (U6/L) (39P50) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 PER- THANE TOTAL (UG/L) (39034) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 52 ------- SUPPLEMENTAL DATA D: PESTICIDE DATA--Continued Susquehanna River at Conowingo, Maryland (01578310), November 1978 through April 1980 --Continued D4TE MOV f 04. .. OEC 21... ?1... JAN , 10... 10... 29... ?V... FEd 28.. . MAR 28... APR 23... MAY 22... JUN 26... JUL 24... AUb 17... SEP 04... OCT 16... MOV 13... OEC 11... JAN . 15... 24... FEB 12... MAR 10... 22... 24... APR 02... PROME- TONE TOTAL (U6/L) (39056) 197B — — — 1979 -- — — — — — — — — — .0 .0 .0 .0 .0 1980 .3 .0 .0 .0 .0 .0 .0 PKOME- TKYNE TOTAL (UG/L) (3V057) — — — — -- — — -- — — — — — .0 .0 .0 .0 .0 .7 .0 .0 .0 .0 .0 .0 SIME- THYNE TOTAL (US/L) (39054) — — — -- — — — — — — — -- .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 SIMA- ZINE TOTAL (UG/L) (39055) — — — — -- — — — — — — — .0 .0 .1 .0 .0 .0 .u .0 .0 .0 .0 .0 .0 TOX- APHENE, TOTAL (UG/L) (39400) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2»4-0» TOTAL (UG/L) (39730) .00 .00 .00 .00 .00 .02 .00 .07 .03 .07 .22 .09 .00 — .17 .00 .00 .01 .00 .03 .03 .16 .02 .02 .01 2,4,5-T TOTAL (UG/L) (39740) .01 .00 .00 .01 .01 .01 .01 .03 .01 .00 .01) .00 .00 — .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 SILVEX, TOTAL (UG/L) (39760) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 — .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 53 ------- SUPPLEMENTAL DATA D: PESTICIDE DATA--Continued Potomac River at Chain Bridge at Washington, D.C. (01646580), March 1979 through March 1980 DATE MAK . 01.. 27.. APK 26.. MAY 09.. 23.. JUN 13.. JUL 17.. AUG 15.. SEP 06.. OCT 17.. DEC 12.. JAN , 14.. FEH 11.. MAR 11.. 1H.. 18.. 19.. 22.. DATE MAK . 01.. 27.. APR 26.. MAY 09. . 23.. JUN 13.. JUL 17.. AUG 15.. SEP 06.. OCT 17.. DEC 12.. JAN , 14.. FEB 11.. MAR 11.. 1H.. 18.. 19.. 22.. TIME 1979 1230 1000 1300 1330 1045 1030 1030 1030 1030 1100 1030 1930 1030 1030 1100 1230 1900 1000 1330 ENORIN, 10TAL (UG/L) ( }9390) 197* .00 .00 .00 ND .00 .00 .00 .00 .00 .00 .00 19«(J .00 .00 . .00 .00 .00 .00 .00 PCS. TOTAL (UG/L) (39516) .0 .0 .0 ND .0 .0 .b .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .1 ETHION, TOTAL (UG/L) (3939B) — — — ND — — -- — -- — — — -- — — — — — ALDRIN, TOTAL (UG/L) (39330) .00 .00 .00 ND .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 HEPTA- CHLOR, TOTAL (UG/L) (39410) .00 .00 .00 ND .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ATRA- ZINE, TOTAL (Ub/L) (39630) .00 .00 .00 -- .20 .40 .30 .30 .40 .00 .00 .00 .00 .00 .00 .00 .00 .10 HfcPTA- CHLOR EPOXIDE TOTAL (UG/L) (39420) .00 .00 .00 ND .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 CHLOH- DANE, TOTAL (UG/L) (39330) .0 .0 .0 ND . 0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 LIND4NE TOTAL (UG/L) (39340) .00 .00 .00 ND .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 DDD, TOTAL (UG/L) (39360) .00 .00 .00 ND .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 MALA- THION, TOTAL (UG/L) (39530) — — — ND — — — -- — — -- — -- — — — — — DDE, TOTAL (UG/L) (39365) .00 .00 .00 ND .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .on .00 .00 METH- OXY- CHLOrt, TOTAL (UG/L) (39490) — — — ND — — — — .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 DI- DDT, AZINON, TOTAL TOTAL (UG/L) (UG/L) (39370) (39570) .00 .00 .00 ND ND .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 METHYL METHYL PARA- TRI- THION. THION, TOTAL TOTAL (UG/L) (UG/L) (39600) (39790) — — — ND ND — — — — -- — — — -- — — — -- — DI- ELDRIN TOTAL (UG/L) (39380) .00 .00 .00 NO .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 MIREX, TOTAL (UG/L) (39755) .00 .00 .00 — .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ENDO- SULFAN, TOTAL (UG/L) (39388) .00 .00 .00 — .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 PAHA- THION, TOTAL (UG/L) (39540) — — -- ND — — — -- — — — — — — — — -- — ND Below limits of detection (not detected). 54 ------- SUPPLEMENTAL DATA D: PESTICIDE DATA--Continued Potomac River at Chain Bridge at Washington, B.C. (01646580), March 1979 through March 1980--Continued NAPH- THA- LENES, POLY- PER- PROME- PROME- SIME- SIMft- TOX- CHLOR. THANE TONE TRYNE TRYNE ZINE APHENE, 2,4-0, 2,4,5-T SILVEX, TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL DATE (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (39250) 139034) (39056) (390^)7) (39054) (39055) (39400) (39730) (39740) (39760) MR , 1979 01... .00 .00 -- -- — — 0 .01 .01 .00 27... .00 .00 — — — — 0 .01 .01 .00 APH 2e... .00 .00 — -- -- — 0 .01 .00 .00 MAY 0"i... — -- -- — — — MD 23... .00 .00 — — — — 0 .01 .00 .00 JUN 13... .00 .00 — — — — 0 .02 .00 .00 JUL 17... AUG 15... SEP 06. .. OCT 17... DEC 12... JAN • 19HO 14... FEH 11... MAR 11... 18... 18... 19... 22... .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .0 .1 .0 .0 .0 .2 .0 .0 .0 .0 .0 .1 .2 .3 .3 .0 .0 .0 .0 .0 .0 .0 .0 .1 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 0 0 0 0 0 0 0 0 0 0 0 0 .07 .00 .14 .00 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ND Below limits of detection (not detected). 55 ------- SUPPLEMENTAL DATA D: PESTICIDE DATA--Continued James River at Cartersville, Virginia (02035000), November 1979 through March 1980 OATE ",0V , 19.. DEC 06.. 18.. JAN , 15.. 20.. 31.. DATE JOV , 19. . otc 06.. 18.. vjAN , 15.. MAR 20.. 31.. TIME 1979 . 0900 1310 1300 19BO 1400 1030 1300 ENDO- SULFAN, TOTAL (UG/L) (393B8) 1979 .00 .00 .00 1980 .00 .00 PCS, TOTAL (UG/L) (39516) .0 .0 .0 . 0 .0 " ENDHII^t, TOTAL (UG/L) (39390) .00 .00 .00 .00 .00 ALDHIN, TOTAL (UG/L) (39330) .00 .00 .00 .00 .00 "" ~ HEPTA- CHLOH. TOTAL (UG/L) ( 39410) .00 .00 .00 .00 .00 ATRA- CHLOR- ZINE. DANE, ODD, TOTAL TOTAL TOTAL (UG/L) (UG/L) (UG/L) (39630) (39350) (39360) .00 .0 .00 .00 .0 .(JO .00 .0 .00 .00 .0 .00 .00 .0 .00 .00 HEPTA- MFTH- CHLOR OXY- EPOXIDE LINOftNE CHLOH, TOTAL TOTAL TOTAL (UG/L) (UG/L) (UG/L) (394?0) (39340) (39480) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 DDE, TOTAL (UG/L) (39365) .00 .00 .00 .00 .00 " MIHEX, TOTAL (UG/L) (39755) .00 .00 .00 .00 .00 DDT, TOTAL (UG/L) (39370) .00 .00 .00 .00 .00 — — NAPH- THA- LENES, POLY- CHLOH. TOTAL (UG/L) (39250) .00 .00 .00 .00 .00 DI- ELDRIN TOTAL (UG/L) (39380) .00 .00 .00 .00 .00 " PER- THANE TOTAL (UG/L) (39034) .00 .00 .00 .00 .00 PROME- PROME- SIME- SIMA- TOX- TONE TRYNE TRYNE ZINE APHENE, Z, 4-0, 8,4 ,5-T SILVEX, TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL TOTAL DATE (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (39056) (39057) (39054) (39055) (39400) (39730) (39740) (39760) NOV , 1979 19... DEC 06... 18... JAN , 19HO 15... MAK ?0... 31... .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 0 .0 .0 0 .0 .0 0 .0 .0 0 .0 .0 0 .0 .0 .00 .00 .00 .00 .00 — .00 .00 .00 .00 .00 — .00 .00 .01 .00 .00 — 56 ------- o H 0 o UJ >• H- O «t 2 tr Q uj < x ooooo o o o o o ooooo co o o o r-- o ^* co m o oooooo O t/) O fU O CT> in (\J i"H *•*»—• .—* rH f-l i—< ^ I—t r-^^^^H i-Hfl^CT'in-*' UJ i-t t- i-i ^t l/l Q — I Z Z O ~ z UJ "-• _j cc (\jrycyn»o w rvj (\j f\j n n m in ^o -C in in n co ru UJ 2 < O z o tr s: 01 -- S £ < ooooo ooooo ooooo ooooo ooooo oooooo CT- ujou nina»Mir roc-i-HOi-* runoi/^c^ oo so >o \o ID ^\oooo ir)O*o^^r"-\o f^ z (/) — ^H^JCT-COO m^H-*ojin m -i -» — < x -*OJMCC'* h- U1 — « co r^ mun— •CJ^CT- z a: a UJ < X (\J T I l/> • t-toz ^HOjifioo ooooo ooo-*»c >ooryror^ r-cor^oj(\i ooooo Z O — UJ ZUJi-»_J CD OOOOCOCO fOCT'OOI'^-lfl OJ O O t- — O I- CC — — Z < CO OOOOO O O O O O OOOOO OOOOO OO < i: U. ooooo ooooo ooooo ooooo o^^ uj zto — ^h-ro^i orir-««-tip ^H-*(y>o^* •irororo-* ^H^^I o •-• njoiroin-c r^K«om4- (\j-*m-*fn nrxji-ifon •* 2 Q o o o CD o o o o cs ooooo ooooiD ooooo o in r~ t/i oj oj oi/)O Mf^rof^in ^r^-ocD^1- UJ t-. t- ^H in o — . oj cvin oj t\j UJ 2 4 O H— z o cr r o u i- — o a: — ujcjo r-th-ruo*^) rxjoooro ^f^-rnc^fu nj ^^ CD co in h- in »-»r«- ^ -* »^ o ao o ^ in 57 ------- UJ « X I-H C\J i~i O O F- l/l f"- W •* **• O O O O OOCMOOO OOOOO OOOOOO Z X U) OJ -H \O <^ LO CO n •* (\J 1/1 —i O <* O CO --• %0 CO •* r- OOOOO OOOOOO •-« o z —• t\j r-« r-« ojf*)"-* -* CT* o .-i ui •- « •£) o o r\j >£ in o ui m c> f- o* co *o CT> cr o (/> o ^H t\j M ro m^-ifirncoi^rn\c^cococ\jcDOJ I Z Z O ~ z uj >-« _j o inifif-NOL/) v£ r^ f- co co 00 r- « o v- x uj z «r e> z o a z U I -- UJ o tr ~ 2<(/l 0>*000 OOOOO OOOOO OOOOO OOOOO OOOOOO ».^.^.^Hi-H (\jmcvicotfi oc^»^iri-* o»muifyi~« \o O11 ^ co -* »c u 0 UJ — GD UJ >- O t- O < *~ 2 IT Q OUJ-t_i < nmnrnoo OJOJCMCVJOJ CVJCVJAJ^--* mnmoj(\j mcofyfvjn ^- in L/I in i i o X < u i- x => il U^*UJ2• Ot- - UJ a -* zo ooooo DCJ^O^OOJ OOOOLOO ooooi ujoo -*ac>ojrn or*--*-*^ ^-ao(\j-*in oo*^oa« ojoorno* %o-*cof\ji Q Z t- o < z a: o uj<\ ooooo n <-* &• to m mr-ojoo j^H (\jr\it\it\iM H < 0 I Z >• i- z o — a: z ZUI«-H_J •< ficvjo^ooin noh-ficvj (\jf\j(\if\jf) rorooorn UJM(>J^^^-»^*^ z uj z < o z M Z O £E Z < ~ ooooo ooooo ooooo ooooo ooooo oooooo OOOOO MOOOO OOCVJOO OOOOO OOOOO OOOOOO <\j w o h- a> ^ - {\ji-t tvitxj nmnn-n rotviojrocvj ^ 58 ------- O o H u O < H UJ < v (71 r^ i/> co »o •-• <3* n o o ooooo co oo •£) cr> co x x nocor*!-* ry K cvj co o o (\j co r^ f) (^ m in >c o* f-i u 2 •-• tvj fu f»i •* ** in .* .-i (\j co «o \o o r*- .» n nj —i oi/)O i-t m h- m •-<•-< (^ I 2 Ct .-t 2 O — UJ z UJ •-< _i CD inco^-*^) in m co co co ^H m (\i oo >o •-« co in -» r- tr r o or s o x u t- — uj ooooo ooooo ooooo ooooo 2 a: Q UJ oiPtn-*LO miPiPt/iin ui^ococro oor^r^r-^o a; uj CD (X ~ Z<(/) ooooo ooooo ooooo ooooo ooooo ooooo) xtn— ,_,^,-H,-H,-( ^H,-,^,,-,,^, ^^t^r-i^H *H(\jtxjrvj(\f (\joj(xjoj(\j ry(yftj(\jn o t- O < Z CC O ZXt/) COOOOOCOGO i-t u Z Q t/> o 2 O — 2uj»-«_j ------- OOOOOO *-i o o o o» (Vi r»- OJ O CO O O1 >X) •-» (VJ Ift CO CO f*) •* K (VI CO O (VI *-i t-t r-» -jf •* (VI O ITJ f> (VI >* ^ Z O ~ X Z UI »-i J U r- 01* CO (*) *O •* CO U") — • *O sD ^H •* (VI 0> <£ r-i *O ^* s£) O n O O ff1 ,-M (VI >O CO *-• O I a: < o t- x a: co o« t- co o nin\o«o-* .-< co •* r> (vt (\j fy ^ ^H ^» _ ^ nj r-- <*> r- o •« tn •* I UJUJZ o (vi (\i i/) ^ ID IDOJOJOJO o ^H o (\j cvt irtcootOin if)rwco»-t>o ao m co oo i-< o ro t*- Ttn— D--«if)-*u^ r^^NOin** ^-ir^^r1--* ^-toaj-oin -*fr>rvj-t-ii-i^HpHt^i m^r^tvjftjw f- ujocoif) »--• o • < H U UJ OOOOO OOOOO OOOOO OOOOO OOOOO OOOl uj- t- 20—0: uj <(_>H-X o 1 uJ2o no o ^o vo COKCVI cr -'^ co >- ^cvim^-in or-aooo •-< nj ------- UJ V z a: o uj «t x ooooo ooooo ooooo o Q o co o —» n o --» co o co (Vi -* •-« i in o i/i o mncor-mr*-oinmc\j^Hror>(\j--4.-t*H^ i^ UJH-«K (V| .-I *H _l .-H i/i o — .-• z o ~ ^ o ^ x z ^ f"»- r>* ^-i in o^^or^-in -^^^o^in vo^tnnw ^t^^ I-H »—» ^-i ^-i <«-< >—* ^^ i t UJZtfO^ i-^(*)t«^p-4^-ii-^ It T o a 3: -3 o H- — o at -* Z ^ zuj"-«-j >• a>>etnmoj oao^osOsc NO>ovOina) OO^HO^D cocuococo u c - LJ z < u> x PJ -H — z o a: s: cc -~ < X U- OOOOO OOOOO Oi-lKOO OOOOO O O sO O O OOOOOO •* o m z cr Q « uji) CT>(\JOCDOO in o c- o o i ^* x w a — in o i z I- Z O — _l •- T o or s; <: a — Z < (fi OOOOO OOOOO OOOOO OOOOO OOOOO OOOOOI uj o o r^(\jv£co(\j •* K co rvj i/t roroo<>\o -^m^coo n%O'-i«O(\j ^ ro •-» p- ^-• i zi/)-— ooh-cop-tM «onr*--*-* nocoso-c ^tn-*rnm (\J^H*-«OO o o ~* m a^ o < (VI M (VI (VI OJ (M Q O 61 ------- z a a UJ < "X O ON CO l/> O OOOOO O O O 4 OOOOO OOOOOI z x (/) 4 f*i o w o ooooo o oo ao oj 4 ao h- o m ^H 4-0000 m oj oo 4 ao i t-*oz •-• .*- in •* oj o o o 4 in m c,* f»> o* i O I Z UJ ^ Z O ~ CD z uj •-• -i a: GO o* in CM o rvj in cn CM oo >c in in PJ w ocoomtvi r-~ >o CM o 4 CM o in o in o* * 4 ro m uj uj z < o t- •-» co i/i •* rvj ~* m i o cc x a Z 01 -- UJ a -~ Z < t/1 OOOOO OOOOO OOOOO OOOOO OOOOO OOOOOI -ioz -HoainaDin nfut-i^i-i ^«*m44 mir>44m r^.*o4in-« ototr'-ioo^-t QVIO CM *-« ^* »-i •-! -« O • < E-i U UJ If) Q — U • >• 0 Q o DO uc*- m.H — ai, f. >• in < S-H CO Q Z S V m oco t\i ** Q — H > <-> < -H I/) Q a: <-• o ^J U I Z < CO 1- Z O — xoerx O I -- <9 a — Z4(/l OOOOO OOOOO OOOOO OOOOO OOOOO OOAOOO 4XU. uiuu ii/)— M o cvj(\j(vjc\jt\i c\jrvj(\jt\jmro i— o ------- o H u 0 < E- < Q A- UJ >• r- ID < 2 cr o uj < v. o CT> in >c <* %o o o (\* m OCDCXJO-OJ co o« ^ ^ in •* •* ^ PI in x i trt co •* o co tn {\j o o •* m m (*>(*>••* in m in in oj (\i fvi cy *-i o in 120: 2 O — UJ 2 uj »-• _i CD o tn o o o o m o in c\j in o o r\j r\j M tvi ry --< .-i <-• ^^ m o o oo in in o o o * in oj t\j o o o o o o a- ujuu oin-4m^ ^•r^^ma) na)>oo%o n (\jr-4^o(7< CT* d> co O o o t- o <: i- 2 tr o u uj < N in >-* rvj o o ooooin oa>>-i^)ao mo^h-eooj naonm-H cooooo t_ * >- < o X I/) o t- o UJ z a V) (/> * o < i u Q t- 2 X O UJ 1 2 Z O — Z UJ t-> _J UJ 2 < CD U »- — O a — «* r u. 3: en ~ o *- f- O < z a: a UJ < X »-• 0 2 UJ •-« r- w Q — 1 2 z o ~ Z UJ »-i _l UJ Z < O O r- — UJ a: « < X U. UJ U O X I/) — o: UJ on m o o m o o o m in o ooooo ooooo o m o in in o o tn in m t i z ._, ^ ^ o conojojrvj tvjnj^tvj^ ^H^H^^^ ^« ,_• ^<-ioco-4ii i LJ P) CO Mil 0 2 OCOOOO OOOOO OOOOO OOOOO OOOO^O (VIOOOOl 0s o os o -o m nj in ^ co r- >o r- in in in in -* n M nj ^ ** o o> a« o< <\i n m r- h- in CD O O O O OOOOO OOOOO OOOOO OO~4*-4^} 0*< CO •* OJ ^ -X) ^-» in in o o o oinKMf- ino^o^ro m^oo^Kw ^^cof-h-K inin-*co(\jfy o ^ cr LJ m moooo mmooo o n in o m o in o o in moooo in in tn o o o i t-m(v)t\j(\jfvf(vj(\i<-ti-t<-itxj'-ii-i i o OOOOO OOOOO OOOOO OOOOO OOOOO 000000 0 of\j<*)coin -^h-oh-o*1 ^cot*)--«f\j i-cO'*'-«co imi*)(*)-* rnfyp^FHoo ^3 63 ------- t- O < z or o uj < x o* o* •-« r- in oj oo o o oo m ^ o* o o so co o o o o o o o o o o in o o o x x (\i oi (\i o OD i-t r> o* 0* co oo^r^ojo 00-4-000 o o o o o r- ir> CT> ^ •* a* t-«oz .-H oj ai ^-« (\i *o ^H r- *o in in *o •* roeoooo o r-i o> •* o n o ao 'C •-• %o Q V) O OJ m OOOOO - O H CD < H z or o u uj in in o> r- -• a oj in •* -* in -< ^o ^ r-i^-^-i/io ooorvjii o zxtn a«o»MftJOj 0^*0^00 oo>o«fnf*i coooco^-»rn moomtro -* o -H o t i a: UJ I- 12 >• < z o « cr x zui*-«_j < vo >f) m tn in in in o m in in in m cvj -* (\i ou in o in in o m o m 2<(/l OOOOO OOOOO OOOOO OOOOO OOOOO OOOOll o^ rtoip^o rvja*^HF-t^ ru o \o sC o ooooii ujoo aoaonjtxjtxj r---iCT»o t- ^ o r-* *-• m o t\j m (J* in »-« ^o in o^ co ------- SUPPLEMENTAL DATA G: DATA FROM ANALYSIS OF BOTTOM MATERIAL AND WATER SAMPLES Susquehanna River below Conowingo Dam at Conowingo, Maryland (01579515), November 3, 1979 DATE MOV < 03... TIME 0900 SPE- CIFIC CON- DUCT- ANCE (MICRO- MHOS) (00095) PH (UNITS) (00400) TEMPER- STURE (DE6 C) (00010) SOLIDS, RESIDUE AT 105 DEG. C, TOTAL (MG/L) (00500) SOLIDS, VOLA- TILE IN BOTTOM MA- TERIAL (MG/KG) (00*96) NITRO- GEN, NITRATE TOTAL (MG/L AS N) (00620) NITRO- GEN, NITRATE DIS- SOLVED (MG/L AS N) (00618) NITRO- GEN, NITRATE DIS- SOLVED (MG/L AS N03) (71B51) NITRO- GEN. NITRITE TOTAL (MG/L AS N) (00615) NITRO- GEN, NITRITE DIS- SOLVED (MG/L AS N) (00613) 27? 8.3 11.5 155 S170 1.6 1.6 6.9 .03 DATE NOV , 03... NITRO- GEN, NITRITE DIS- SOLVED (MG/L Ab N02) (71856) 1979 .13 NITRO- GEN, N02*N03 TOTAL (MG/L AS N) (00630) 1.6 NITRO- GEN, N02»N03 DIS- SOLVED (MG/L AS N) (00631) 1.6 NITRO- GEN, N02*N03 TOT. IN 80T MAT (MG/KG AS N) (00633) 1.6 NITRO- GEN, AMMONIA TOTAL (MG/L AS N) (00610) .05 NITRO- GEN, AMMONIA DIS- SOLVED (MG/L AS N) (00608) .04 NITRO- GEN, NH4 TOTAL IN 80T. MAT. (MG/KG AS N) (00611) 4.7 NITRO- GEN, AMMONIA TOTAL (MG/L AS NH4) (71845) .06 NITRO- GEN, AMMONIA DIS- SOLVED (MG/L AS NH4) (71846) .05 NITRO- GEN, ORGANIC TOTAL (MG/L AS N) (00605) .67 NITRO- GEN, ORGANIC DIS- SOLVED (MG/L AS N) (00607) .27 DATE NOV , 03... NITRO- GEN, AM- MUNIA + ORGANIC TOTAL (MG/L AS N) (00625) 1979 .72 NITRO- GEN, NH4 * ORG. SUSP. TOTAL (MG/L AS N) (00624) .41 NITRO- GEN, AM- MONIA + ORGANIC DIS. (MG/L AS N) (00623) .31 NITRO- GEN, NH4 * ORG. TOT IN BOT MAT (MG/KG AS N) (00626) 2800 NITRO- GEN, TOTAL (MG/L AS N) (00600) 2.3 NITRO- GEN, TOTAL (MG/L AS N03) (71B87) 10 NITRO- GEN, DIS- SOLVED (MG/L AS N) (00602) 1.9 NITRO- GEN, TOT IN BOT- TOM MA- TERIAL (MG/KG AS N) (00603) 2800 PHOS- PHORUS, TOTAL (MG/L AS P) (00665) .03 PHOS- PHORUS TOTAL (MG/L AS P04) (71886) .09 PHOS- PHORUS, DIS- SOLVED (MG/L AS P) (00666) .03 DATE NOV , 03... PHOS- PHORUS, ORTHO. TOTAL (MG/L AS P) ( f0507> 1979 .04 PHOS- PHORUS, ORTHO, DIS- SOLVED (MG/L AS P) (00671) .00 PHOS- PHATE, ORTHO, DIS- SOLVED (MG/L AS P04) (00660) .00 PHOS- PHORUS, TOTAL IN BOT. MAT. (MG/KG AS P) (00668) 67 ALUM- INUM, TOTAL RECOV- ERABLE (UG/L AS AL) (01105) 700 ALUM- INUM, SUS- PENDED RECOV. (UG/L AS AL) (01107) 100 ALUM- INUM, DIS- SOLVED (UG/L AS AL) (01106) 600 ARSENIC TOTAL IN BOT- TOM MA- TERIAL (UG/G AS AS) <01003) 0 CADMIUM HECOV. FM BOT- TOM MA- TERIAL (UG/G AS CD) (01028) •clO CHRO- MIUM, RECOV. FM BOT- TOM MA- TERIAL (UG/G) (01029) 10 C08ALT, RECOV. FM BOT- TOM MA- TERIAL (UG/G AS CO) (01038) 10 DATE COPPER, KECOV. FM BOT- TOM MA- TERIAL (UG/G AS CU) (01043) IRON, TOTAL RECOV- ERABLE (UG/L AS FE) (01045) IRON, SUS- PENDED RECOV- ERABLE (UG/L AS FE) (01044) IRON, DIS- SOLVED (UG/L AS FE) (01046) IRON, RECOV. FM BOT- TOM MA- 'TERIAL (UG/G AS FE) (01170) LEAD, RECOV. FM BOT- TOM MA- TERIAL (UG/G AS P6) (01052) MANGA- NESE, TOTAL RECOV- ERABLE (UG/L AS MN) (01055) MANGA- NESE, SUS- PENDED RECOV. (UG/L AS MN) (01054) MANGA- NESE, DIS- SOLVED (UG/L AS MN) (01056) MANGA- NESE. HECOV. FM BOT- TOM MA- TERIAL (UG/G) (01053) MERCURY RECOV. FM BOT- TOM MA- TERIAL (UG/G AS HG) (71921) NOV Oi. 1979 420 390 30 8700 10 90 90 960 .00 65 ------- SUPPLEMENTAL DATA G: DATA FROM ANALYSIS OF BOTTOM MATERIAL AND WATER SAMPLES Susquehanna River below Conowingo Dam at Conowingo, Maryland (01579515), November 3, 1979 --Continued /INC. wECCW. f<: SOT- CARBON, CARBON, INOR- CARBON. CAKHON, CARBON. INOR- INORG INOR- GANIC, ORGANIC 6ANIC, PC8. TOTAL ALORIN, TOTAL DATE TOM MA- IEHIAL (U&/G Ab ZN) (.11093) CARBON, TOTAL (MG/L AS C) (00690) ORGANIC TOTAL (MG/L AS C) (006dO) GANIC. TOTAL (MG/L Ab C) (006S5) DIS- SOLVED (Mlj/L AS C) (00691 ) TOT. IN BOT MAT (G/KG Ab C) (00693) TOT IN BOT MAT (G/KG AS C) (00686) IN BOT- TOM MA- TERIAL (UG/KG) (39519) IN BOT- TOM MA- TERIAL (UG/KG) (39333) CHLOR- DANE, TOTAL ODD. TOTAL IN BOT- IN BOT- TOM MA- TOM MA- TERIAL TERIAL (UG/KG) (UG/KG) (39351) (39363) 197S< OJ... 90 16 ^.o 1.1 DDE. TOTAL DDT, TOTAL 01- 01- OZINON, ELDRIN, ENDRIN, ETMION, TOTAL TOTAL TOTAL TOTAL HEPTA- HtPTA- CHLOR, TOTAL ChLOR EPOXIQE LINDANE TOTAL MALA- THION, TOTAL METH- OXY- CHLOW, I'-l BOT- IN BOT- IN BOT- IN 80T- IN dOT- IN HOT- IN HOT- TOT. IN IN ROT- IN BOT- TOT. IN TUM MA- TOM MA- TOM MA- TOM MA- TOM MA- TOM MA- TOM MA- BOTTOM TOM MA- TOM MA- BOTTOM ItRIAL TERIAL TERIAL TERIAL TERIAL TERIAL TERIAL MATL. TERIAL TERIAL MATL. OAIE (UG/Kfa) (U6/KG) (UG/KG) (UG/KG) (UG/KG) (UG/KG) (UG/KG) (UG/KG) (UG/KG) (UG/KG) (UG/KG) (J9368) (3^373) (395H) (39383) (39393) (39J99) (39413) (394E3) (39343) (39531) (39481) NiOV , 1974 Oi... . r .0 DATt Mb THYL PARA- THION, TOT. IN BOTTOM MATL. (UG/KG) (39601 ) METHYL TRI- THION, TOT. IN BOTTOM MATL. (UG/KG) (39791 ) PARA- THION. TOTAL IN HOT- TOM MA- TERIAL (UG/KG) (39S41) TOXA- PriENE, TOTAL IN BOT- TOM MA- TERIAL (UG/KG) (39403) TRI- THIOM. TOTAL IN BOT- TOM MA- TERIAL (UG/KG) (39787) -------