Quantity and Quality of Base Flow and Stormwater Runoff in Independence, Missouri-October 1991 to February 1993

SyGREGGK. SCHALK

U.S. GEOLOGICAL SURVEY Open-File Report 93-495

Prepared in cooperation with the CITY OF INDEPENDENCE

Rolla, Missouri 1994

U.S. DEPARTMENT OF THE INTERIOR

BRUCE BABBITT, Secretary

U.S. GEOLOGICAL SURVEY

Gordon P. Eaton, Director

For additional information Copies of this report maywrite to: be purchased from:

U.S. Geological SurveyDistrict Chief Earth Science Information CenterU.S. Geological Survey Open-File Reports Section1400 Independence Road Box 25286, MS 517Mail Stop 200 Federal CenterRolla, Missouri 65401 Denver, Colorado 80225

CONTENTS

Abstract..................................................................................................................................................................... 1mtroduction..............................................................................................^^ 1

Purpose and Scope............................................................................................................................................. 2Description of Study Area ................................................................................................................................. 2Acknowledgments............................................................................................................................................. 2

Base-Flow Sampling Methods.................................................................................................................................. 4Site Selection..................................................................................................................................................... 4Data Collection............................................................._ 4

Stormwater-Runoff Sampling Methods.................................................................................................................... 4Site Selection..................................................................................................................................................... 4Data Collection............................................................................................_^ 5Volume and Loads............................................................................................................................................. 10Laboratory Analysis........................................................................................................................................... 11Quality Assurance Samples ............................................................................................................................... 11

Base-Flow Data........................................................_ 12Stormwater-Runoff Data........................................................................................................................................... 13

Rainfall and Discharge Characteristics.............................................................................................................. 13Bacteria..........................................................................................................^^ 13Constituent Concentrations................................................................................................................................ 13Trace Elements................................................................................................................................................... 19Pesticides............................................................................................................................................................ 19Volatile Organic Compounds............................................................................................................................. 19Acidic, Basic, and Neutral Semi-Volatile Organic Compounds........................................................................ 20Volume and Loads............................................................................................................................................. 20

References Cited ....................................................................................................................................................... 21Tables...........................................^ 23

FIGURES

1. Map showing location of study area, study sites, and rain gages............................................................... 32. Map showing location of base-flow sampling sites.................................................................................... 6

3-7. Rainfall intensities and discharge hydrographs for each storm event sampled at3. Site !............................................... 144. Site2................................................_ 155. Site 3.......................................................« 166. Site4...................................................« 177. SiteS...................................................................................................................................................... 18

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TABLES

1. Selected data for study sites and drainage basins and location of rain gages.......................................... 242. Methods, detection limits, preservations, and bottle types used for determination of constituent

concentrations at the U.S. Geological Survey, Arvada, Colorado....................................................... 253. Methods, detection limits, preservations, and bottle types used for determination of constituent

concentrations at the Enseco Rocky Mountain Analytical Laboratory, Arvada, Colorado................ 294. Values of selected physical properties and constituent concentrations in stormwater-runoff

replicate samples from sites 2 and 4.................................................................................................... 305. Concentration and percent recovery of pesticides in matrix spiked sample sets from site 1,

September 2,1992............................................................................................................................... 326. Concentration and percent recovery of pesticides in matrix spiked sample sets from site 1,

February 11,1993................................................................................................................................ 337. Concentration and percent recovery of acidic, basic, and neutral semi-volatile organic compounds

in matrix spiked sample sets from site 3, August 18,1992................................................................. 348. Concentration and percent recovery of volatile organic compounds in matrix spiked sample sets

from site 2, December 9,1992............................................................................................................. 369. Statistical summary of physical properties and constituent concentrations in water samples

collected at base-flow sampling sites in October 1991 and January to February 1992....................... 3710. Values of selected physical properties and constituent concentrations of water samples collected

during base-flow conditions................................................................................................................. 3811. Rainfall and discharge characteristics for three storms at each of the stormwater-runoff sampling

sites ...................................................................................................................................................... 4312. Values of selected physical properties and constituent concentrations from first-flush samples

collected at the stormwater-runoff sampling sites............................................................................... 4413. Values of selected physical properties and constituent concentrations in flow-weighted

composite samples at the stormwater-runoff sampling sites............................................................... 4614. Concentrations of trace elements in flow-weighted-composite samples at the stormwater-

runoff sampling sites............................................................................................................................ 4915. Concentrations of pesticides in flow-weighted-composite samples at the stormwater-runoff

sampling sites...................................................................................................................................... 5116. Concentrations of volatile organic compounds in flow-weighted-composite samples at the

stormwater-runoff sampling sites........................................................................................................ 5417. Concentrations of acidic, basic, and neutral semi-volatile organic compounds in flow-weighted-

composite samples at the stormwater-runoff sampling sites............................................................... 5918. Stormwater-runoff volume and constituent loads at site 1...................................................................... 6519. Stormwater-runoff volume and constituent loads at site 2...................................................................... 6620. Stormwater-runoff volume and constituent loads at site 3...................................................................... 6721. Stormwater-runoff volume and constituent loads at site 4...................................................................... 6822. Stormwater-runoff volume and constituent loads at site 5...................................................................... 69

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CONVERSION FACTORS

Multiply By To obtain

inch 25.4 millimeterfoot 0.3048 meteracre 0.4047 hectarecubic foot per second 0.02832 cubic meter per secondpound, avoirdupois 0.4536 kilogramcubic foot 0.02832 cubic metersquare mile 2.589 square kilometer

Temperature in degrees Celsius (°C) can be converted to degrees Fahrenheit (°F) as follows:

°F = (1.8x°C) + 32

Quantity and Quality Of Base Flow and Stormwater Runoff in Independence, Missouri-October 1991 to February 1993

ByGreggK. Schalk

AbstractSamples were collected in October 1991

and January to February 1992 at 193 sampling sites to characterize base flow in Indepen­ dence, Missouri. From all samples collected at the base-flow sampling sites, 5 samples exceeded a pH of 9.0, total chlorine was detected in 45 samples, total detergents were detected in 1 sample, and total copper and total phenols were not detected in any samples.

Samples were collected from July 1992 to February 1993 at five stormwater-runoff sampling sites draining single-family, multi- family, commercial, and light-industrial land uses. Fecal coliform ranged from 500 to 290,000 colonies per 100 milliliters and fecal streptococci ranged from 1,900 to 500,000 colonies per 100 milliliters in 35 first-flush samples collected from 15 storms at the 5 sampling sites. The fecal coliform to fecal streptococci ratio averaged 0.9 and ranged from 0.01 to 4.1.

At each stormwater-runoff sampling site, three flow-weighted composite samples were collected and analyzed for physical properties, common constituents, trace elements, pesti­ cides, volatile organic compounds, and acidic, basic, and neutral semi-volatile organic compounds. Runoff loads were calculated for each constituent detected. The chemical oxygen demand ranged from 36 to 1,600 milli­ grams per liter. Biochemical oxygen demand ranged from 15 to greater than 650 milligrams per liter. Dissolved solids concentrations ranged from 34 milligrams per liter at a

commercial site to 14,700 milligrams per liter at a light-industrial site that had large unshel­ tered piles of road salt. For all sites suspended solid concentrations ranged from 38 to 1,200 milligrams per liter.

Antimony, beryllium, selenium, and thallium were not detected, and silver was detected once. Mercury was detected with concentrations of 0.1,0.2, and 0.3 microgram per liter. The following ranges of trace element concentrations (micrograms per liter) were detected: arsenic (1 to 10), cadmium (less than 1 to 40), chromium (less than 1 to 99), copper (8 to 130), lead (20 to 800), nickel (3 to 37), and zinc (110 to 6,200).

Pesticides detected include chlordane, p,p' -ODD, p,p' -DOT, diazinon, dieldrin, lindane, and Aroclor 1254. Thirteen of the 63 volatile organic compounds analyzed were detected 27 times with concentrations ranging from 0.2 to 5.1 micrograms per liter. Acidic, basic, and neutral semi-volatile organic compounds detected include di-2-ethylhexyl phthalate, fluoranthene, phenanthrene, and pyrene.

INTRODUCTION

During 1990 the U.S. Environmental Protection Agency (USEPA) mandated that all cities with a population of 100,000 or greater be required to submit a Stormwater discharge permit application under the National Pollution Discharge Elimination System (NPDES) program. The purpose of the permit is to establish an approach to

control pollutants in stormwater (U.S. Environ­ mental Protection Agency, 1990). The permit application requires characterization of water discharges to the municipal storm sewer system. The U.S. Geological Survey (USGS), in cooper­ ation with the city of Independence, Missouri, began a study in July 1991 to:

1. Characterize the quantity and quality of water discharging (base flow) from selected conveyances within the city limits of Independence during dry-weather periods.

2. Characterize the quantity and quality of stormwater runoff from five selected homogenous land-use basins in Independence.

Purpose and Scope

The purpose of this report is to document site descriptions, data collection techniques, and laboratory analytical methods and to present the water quantity and quality results collected from base-flow sampling from October 1991 to February 1992 and from stormwater runoff from July 1992 to February 1993.

The scope of this report includes measure­ ments of discharge, specific conductance, pH, and water temperature and concentrations of total chlorine, total copper, total detergent, and total phenols from 226 samples collected at 193 sites preceding 72 hours of dry weather. This report also includes results from stormwater runoff analyzed for bacteria, physical properties, common constituents, trace elements, pesticides, volatile organic compounds, and semi-volatile acidic, basic, and neutral methylene chloride extractable organic compounds (hereafter referred to in this report as acidic, basic, and neutral organic compounds) from 15 storm samples from 5 urban land-use sites. Stormwater runoff volume and loads were calculated for each storm at each site. Volume and loads were simulated using data from this report and methods described by Driver and Tasker (1990).

eastern side of the Kansas City metropolitan area adjacent to the eastern city limits of Kansas City, Missouri. During 1990 the population of Indepen­ dence was 112,301 (City of Independence, 1993).

Independence occupies about 78 mi2 (square miles) and is primarily a suburban community with commercial areas developed along the arterial streets. Independence is composed of 59 percent urban land and 41 percent non-urban land (agricul­ tural and undeveloped land). Of the urban land 61 percent is single-family residential, 6.1 percent is commercial, and 2.4 percent is multi-family residential. The only heavy industrial area is limited to the Lake City Army Ammunition Plant, which is 12.6 percent of the urban land use. Light industrial land uses cover 1.9 percent of the urban land use, and a vacant-surface, industrial underground site covers 2.2 percent of urban land use. The remaining 14 percent of the urban land use includes public facilities, municipal waste facilities, and golf courses.

The average annual precipitation for the area is 35.2 in. (inches; National Oceanic and Atmospheric Administration, 1991). Of the annual precipitation, an average of 24.4 in. occurs during April through September. The mean minirnum January temper­ ature in the study area is 17.2 °F (degrees Fahrenheit), and the mean daily maximum July temperature is 88.5 °F. The 24-hour, 2-year recur­ rence-interval rainfall is 3.5 in. (Hershfield, 1961).

All of the larger streams in Independence drain north into the Missouri River. These larger streams include Fire Prairie Creek, Little Blue River, Mill Creek, Rock Creek, and Sugar Creek (fig. 1). The Little Blue River and its tributaries drain about two- thirds of the city. The tributary streams of the Little Blue River that drain Independence include Adair Creek, Bundschu Creek, Burr Oak Creek, Crackerneck Creek, East Fork Little Blue River, and Spring Branch Creek (fig. 1). Ditches, gutters, curbs, swales, and ephemeral stream tributaries drain a major part of the developed area to the perennial streams. Subterranean storm sewers drain newly developed areas, main arterial roads, and densely populated areas.

Description of Study Area Acknowledgments

The city of Independence (fig. 1) is located in the west-central part of Missouri and lies on the

The author expresses appreciation to Dick Champion, director of the Independence Water

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Pollution Control Department; Steve Spydell, Independence Water Pollution Control Department; personnel from the Independence Water Pollution Control Sewer Maintenance Department for assistance in construction of the sampling site; and Jane Henry, Independence Water Pollution Control Laboratory for the coordi­ nation of the biochemical oxygen demand analysis. University of Missouri 4-H extension center, Independence, and private citizens allowed data collection equipment on their property.

BASE-FLOW SAMPLING METHODS

To determine quantity of water discharging and selected constituent concentrations during base flow (referred to by the USEPA as dry-weather screening) into the streams of Independence, samples were collected in all basins. These samples were collected after 72 hours of no precip­ itation to ensure that water sampled was not from stormwater runoff.

Site Selection

Because perennial streams and other open- channel conveyances drain most of Independence, a systematic procedure was developed to locate sampling sites based on these drainage character­ istics. This procedure identified sites in convey­ ances with base flow. Sample sites were selected at the farthest downstream point in each stream basin that had a cross section adequate for a discharge measurement. Site selection continued upstream until no flow was present. Upstream sample sites were located at flowing outfalls, upstream from flowing outfalls, at the mouth of flowing tributaries, upstream from flowing tribu­ taries, and at selected sites along the stream. Base- flow sampling sites were established at 193 points in the city limits of Independence (fig. 2).

Data Collection

Discharge and water-quality data were collected at the 193 samples sites (fig. 2). Discharge, specific conductance, pH, water temperature, and concentrations of total chlorine,

total copper, total detergents, and total phenols were measured either onsite or within 48 hours of sample collection. Discharge was measured using either volumetric methods or by a pygmy current meter (Rantz and others, 1982). Specific conduc­ tance was measured within 48 hours after sample collection at the USGS in Independence with a meter calibrated in the range encompassing the water sample and reported in microsiemens per centimeter at 25 °C (degrees Celsius). The pH of the water was measured at the time of collection with an electronic meter calibrated in the pH range of 4.0 to 10.0. Water temperature was measured at the time of collection using a mercury thermometer and reported to the nearest 0.5 °C.

Concentrations of total chlorine, total copper, total detergents, and total phenols were measured using colorimetric reagents and methods developed by the Hach Company 1 . Total chlorine concentra­ tions were determined at the time of collection. Concentrations of total copper, total detergents, and total phenols were determined at the USGS in Independence within 48 hours from the time of sample collection. The Hach methods are considered semiquantitative because no quality assurance samples were collected to verify the precision and accuracy of the analytical methods.

STORMWATER-RUNOFF SAMPLING METHODS

To determine the quantity and quality of stormwater runoff, discharge and rainfall depths were measured and water-quality and quality assurance samples were collected and analyzed. Constituent loads were computed for each constituent detected. The data collected for this study are stored in the USGS National Water Data Storage and Retrieval System (WATSTORE).

Site Selection

Sites 1 to 5 (fig. 1) were selected for the purpose of monitoring water quantity and quality from stormwater runoff from specific land uses

^se of trade or firm names in this report is for identifica­ tion purposes only and does not constitute endorsement by the U.S. Geological Survey.

within Independence (table 1, at the back of this report). Site 1 is downstream from a single-family housing area, site 2 from a multi-family housing area, sites 3 and 4 from commercial areas, and site 5 from a light industrial area. Selection of each study site was based on homogenous land use, suitable hydrologic controls for a reliable stage to discharge rating, and accessibility and safety.

Drainage and impervious areas for the study sites were computed from the topographic planning maps on file with the city of Independence and site visits. Land-use percentages were computed using a geographical information system data base of land-use coverages compiled by Independence and visits for sites 1 to 4. Site 5 land-use data were computed using topographic planning maps and site visits.

Site 1 (fig. 1) is downstream from a fully developed single-family housing area. The basin drains 86 percent single-family housing, 4 percent commercial, 4 percent multi-family housing, 3 percent light industrial, and 3 percent public facil­ ities. The approximate population density in the basin is 3,810 persons per square mile (City of Independence, 1993). Street gutters, ditches, and natural open channels are the primary conveyances that drain this basin. The stage to discharge relation is controlled by a culvert at high flow and by the stream channel at low flow.

Site 2 (fig. 1) is downstream from a multi- family housing area. This basin primarily has residential dwellings consisting of apartments and duplexes. The basin drains 69 percent single and multi-family housing, 17 percent commercial, and 14 percent vacant land. The population density in the basin is approximately 5,062 persons per square mile (City of Independence, 1993). Street gutters and underground storm sewers are the primary conveyances that drain this basin. The stage to discharge relation is controlled by a culvert at high flow and by the stream channel at low flow.

Site 3 (fig. 1) is downstream from a commercial area. This basin has various types of commercial facilities, including a large retail store, two strip malls, several restaurants, convenience stores, a car wash, and a storage facility. State Highway 291 crosses the basin. The basin drains 62 percent commercial land use, 24 percent single- family housing, 9 percent multi-family housing,

and 5 percent public facilities. The population density in the basin is approximately 2,324 persons per square mile (City of Independence, 1993). Gutters and underground storm sewers are the main conveyances that drain the area. The stage to discharge relation is controlled by a culvert at high flow and by the stream channel at low flow.

Site 4 is downstream from the downtown commercial area of Independence. The basin drains approximately 53 percent single-family housing, 24 percent commercial, 16 percent public facilities, 5 percent light industry, and 2 percent multi-family housing. The population density in the basin is approximately 3,739 persons per square mile (City of Independence, 1993). Gutters and underground storm sewers are the main conveyances that drain the area. The stage to discharge relation is controlled by a culvert at high flow and by the stream channel at low flow.

Site 5 is downstream from a light industrial area. The basin drains 71 percent light industry, 22 percent vacant ground, and 7 percent salt-pile storage area for road deicing. No residential housing exists in this basin. Overland flow, gutters, and underground storm sewers are the main conveyances that drain the area. For this site, the stage to discharge relation control is a man- made grass-lined channel.

Data Collection

Continuous-streamflow records at the five stormwater-runoff sampling sites were collected with a float and stilling-well combination (Buchanan and Somers, 1978). Continuous stream stage was recorded in 5-minute increments. Stage also was collected manually while sampling storm- water runoff. Stage data were collected at 0.01 -ft (foot) increments. Stream stage was related to current-meter streamflow measurements (Buchanan and Somers, 1976) and to indirect measurement computations (Benson and Dalrymple, 1967) to prepare stage-discharge ratings (Kennedy, 1983). Indirect measurement computations for culverts (Bodhaine, 1976) were made at sites 1, 2, 3, and 4. Indirect measurement computations using the slope-area method (Dalrymple and Benson, 1967) were made at site 5.

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Continuous rainfall data were collected at two USGS sites, RN1 and RN2 (fig. 1). Rainfall data- collection sites were chosen to represent depths of rainfall at the sampling sites (table 1). Criteria for selecting rain gage locations included geographical location and overhead clearance above rain gage. The instrumentation for a rain gage included a 5- minute-interval analog data recorder connected to a float inside a rainfall collection pipe. Rainfall data were collected at 0.01-in. increments.

Stormwater runoff was sampled at least 72 hours after the previous storm of 0.1 in. or more of rain. Samples were either collected at one location in the stream or at several locations across the stream at equal width increments. Stormwater- runoff samples were collected using a hand-held bottle.

Stormwater-runoff samples for physical properties, inorganic compounds, and organic compounds were of two types. Within the first 30 minutes of runoff, samples were collected for bacteria, total chlorine, cyanide, phenols, and oil and grease in the approved bottle (tables 2 and 3, at the back of this report; the sample for bacteria analysis was collected in a sterilized polyethylene bottle). Collectively, these samples are classified as the first-flush sample. Within the first 30 minutes and also throughout the duration of the runoff, a discrete sample was collected for a flow- weighted-composite sample. The discrete sample was collected directly into a 1-gal (gallon) narrow- mouth brown glass bottle for analyses of all constituents except volatile organic compounds. The discrete sample for volatile organic compound analysis was collected in a 40-mL (milliliter) brown septum-capped bottle. To compute the volume of each discrete sample to be included in the flow-weighted-composite sample, the following method used was based on the mid- interval method of subdividing described by Porterfield (1977) and adjusted to account for variable time intervals:

(1)

where v(n) is the volume of discrete sample to be added to the composite sample;

q(n) is the total volume of discharge that occurred from one-half the time since the previous sample until one- half the time to the next sample. The first sample volume is computed from the beginning of the storm- water runoff to one-half the time to the second sample. The last sample volume is computed from one-half the time since the previous sample to the end of the stormwater runoff;

Q is total volume of stormwater runoff;and

V(t) is total composite volume required. The 1-gal discrete samples were composited at

the USGS, Independence, within 24 hours of collection to obtain the flow-weighted composite sample. This sample was split into subsamples using a cone splitter and a churn splitter for the different preservation and analytical methods. The cone splitter was used to initially split the composite sample into 10 subsamples within a 3 percent equal volume and suspended sediment concentration (Ward and Harr, 1990). From these 10 subsamples, samples for organic compounds were split using the cone splitter and samples for inorganic compounds were split using the churn splitter. The 40-mL discrete samples for volatile organic compound analysis were composited at the USGS, Arvada, Colorado.

Volume and Loads

A volume is the total quantity of water contributed from a basin by stormwater runoff passing a designated point in a given period of time. A volume was calculated for the duration of stormwater runoff using the discharge hydrograph. A load is the total quantity of a particular constituent contributed from a basin by stormwater runoff passing a sample point in a given time.

10

Simulated stormwater-runoff volumes in cubic feet and stormwater-runoff constituent loads in pounds were calculated using the regional regression models for the stormwater-runoff volume and loads presented in Driver and Tasker (1990). Site specific, climatic, and storm charac­ teristic data from this report were used with the regression models to simulate stormwater-runoff volume and loads. For each site the physical and land-use information needed to simulate a storm- water-runoff volume or load included drainage area, percentage of impervious area, population density, and percentage of land use, including residential, commercial, industrial, and non- urban. The climatic characteristics needed to simulate a stormwater-runoff volume or load were total storm rainfall, maximum 24-hour precipi­ tation intensity that had a 2-year recurrence interval, mean annual rainfall, mean annual nitrogen load in precipitation, and mean minimum January temperature. For this study, stormwater- runoff volume and loads were simulated using measured total rainfall from storms sampled. The approximate mean annual nitrogen load in precipi­ tation is 13.3 pounds per acre [National Atmospheric Deposition Program (IR-7)/National Trends Network, 1982-91]. The regression models simulated stormwater-runoff loads for chemical oxygen demand, dissolved and suspended solids, total nitrogen, total ammonia plus organic nitrogen, and total cadmium, copper, lead, and zinc.

Laboratory Analysis

Water temperature, fecal coliform, fecal strep­ tococci, and concentrations of total chlorine, total cyanide, total phenols, and total oil and grease were determined for the first-flush sample. Water temperature and total chlorine concentration were determined at the time of sample collection using methods described for base-flow sampling. Fecal coliform and fecal streptococci colony densities were determined using membrane-filter methods described in Britton and Greeson (1989) at the USGS in Independence. Samples for total phenols and total oil and grease were analyzed by the USGS, Arvada, Colorado, using the methods and detection limits listed in table 2. Total cyanide

was analyzed by Enseco Rocky Mountain Analytical Laboratory, Arvada, Colorado, using the methods and detection limits listed in table 3.

The physical properties and chemical constituent analyses, methods, and detection limits used by the USGS, Arvada, Colorado for the flow- weighted-composite samples are listed in table 2. Total antimony, total silver, and total thallium concentrations in the flow-weighted-composite sample were analyzed by Enseco Rocky Mountain Analytical Laboratory using methods and detection limits listed in table 3. The 5-day biochemical oxygen demand (hereafter referred to as biochemical oxygen demand) sample from the flow-weighted composite sample was split into a 1-L (liter) polyethylene bottle and analyzed at the city of Independence Water Pollution Control Laboratory, using the USEPA method 405.1 (5 days at 20 °C; U.S. Environmental Protection Agency, 1983) within 24 hours of sample collection.

Chemical constituents reported as total, total recoverable, or whole-water recoverable were analyzed from unfiltered samples. Dissolved constituents from the flow-weighted composite samples were determined from water samples filtered through a 0.45-urn (micrometer) filter using a peristaltic pump.

Analyses of the flow-weighted-composite samples for specific conductance, pH, alkalinity and bicarbonate concentrations were done at the USGS in Independence. Specific conductance and pH were determined by methods described in the base-flow sampling methods. Alkalinity and bicarbonate concentrations were determined by incremental titrations with 0.16 N (normal) sulfuric acid past the inflection point of the titration curve that occurs at a pH of about 4.5.

Quality Assurance Samples

The representativeness of sample collection and handling was assessed by analyzing equipment and trip blanks, replicate samples, and matrix spiked sample sets. An equipment blank was analyzed for all properties and constituents listed in tables 2 and 3, except for biochemical oxygen demand.

11

Organic- and inorganic-free blank water was passed through all sample collection processing devices and treated as a regular flow-weighted composite sample. All constituent concentrations analyzed for in the equipment blank were less than the detection limit, except for the chemical oxygen demand [96 mg/L (milligrams per liter)], dissolved calcium (0.03 mg/L), dissolved phosphorus (0.03 mg/L), total ammonia as nitrogen (0.12 mg/L), suspended solids at 105 °C (5 mg/L), total organic carbon (27 mg/L), chromium [3 jog/L (micrograms per liter)], and methylene chloride (0.03 mg/L). The cleaning procedure used for equipment, rinsing with methanol, probably resulted in the large chemical oxygen demand and total organic carbon concentrations. On recognition of the data anomalies, the cleaning procedure was modified to exclude the use of methanol.

A trip blank was analyzed for volatile organic compounds to determine if diffusion of these compounds occurred through the septum caps during shipping and storage. A trip blank is a sample of organic-free water filled and shipped with the empty sample collection bottles and taken to the study sites with the collection bottles, never opened onsite, and returned to the laboratory with the samples. One trip blank was analyzed for samples collected at site 3 on July 9, 1992. All constituents were less than the detection limits, except for methylene chloride, which had a concentration of 0.5 ug/L (detection limit was 0.2

Analysis of replicate samples was used to assess the precision of sample collection from sample splitters, shipping and storage, and laboratory analyses (M.W. Sandstrom, U.S. Geological Survey, written commun., 1990). Replicate samples for inorganic analyses were split from a flow-weighted-composite sample using a churn splitter. The data for the inorganic replicate samples are listed in table 4, at the back of this report.

Matrix spiked sample sets were analyzed to determine analytical recoveries for the different conditions that a sample undergoes. Matrix spiked sample sets for pesticides and acidic, basic, and neutral organic compounds included two replicate field spiked samples, a replicate laboratory spiked sample, and a replicate unspiked sample. A matrix spiked sample set for volatile organic compounds

included a replicate laboratory spiked sample and a replicate unspiked sample. All samples were split from a flow-weighted composite sample using a cone splitter and spiked with a selected set of analytes of known concentrations onsite for replicate field spiked samples and at the laboratory for laboratory spiked samples. Comparison of the two replicate field spiked samples was used to assess the precision of the sample collection from the cone splitter, shipping and storage conditions, and laboratory analyses. Degradation during shipping also can be assessed from the results of a replicate laboratory spiked sample and a replicate field spiked sample. The replicate unspiked sample is analyzed to determine the ambient constituent concentrations. If a constituent is detected in the unspiked sample, the concentration is then subtracted from the constituent concentration determined in the other three replicate spiked samples to compute the percent recoveries. Concentrations and percent recoveries for the matrix spiked sample sets for pesticides are listed in tables 5 and 6, at the back of this report. Results for the matrix spiked sample sets for acidic, basic, and neutral organic compounds are listed in table 7, at the back of this report, and results for the matrix spiked sample sets for volatile organic compounds are listed in table 8, at the back of this report.

BASE-FLOW DATA

A total of 226 samples were collected at 193 sites (fig. 2). Some sites were sampled more than once because concentrations of selected constit­ uents were previously detected in a sample or were expected to be present from certain land uses. For each sample, discharge, specific conductance, pH, water temperature, total chlorine, total copper, total detergents, and total phenols were determined. A summary of the results is listed in table 9, at the back of this report. The maximum discharge, 10.1 ft3/s (cubic feet per second), was measured near the mouth of Rock Creek (fig. 2). The pH of five samples exceeded 9.0 and these samples had a range of discharge from 0.003 to 0.15 fr/s and a range of specific conductance from 507 to 773 US/cm (microsiemens per centimeter at 25 °C). Total chlorine was detected 45 times at 39 sites,

12

with a maximum concentration of 0.9 mg/ L. Total copper and total phenols were not detected at any of the sites. Total detergents were detected at site S19 (fig. 2) with a concentration of 0.3 mg/L at a discharge of 0.02 ft3/s. The results for the base- flow samples are listed in table 10, at the back of this report.

Stormwater-Runoff Sampling Data

The following sections contain data from stormwater-runoff sample collection at sites 1 to 5 from July 9,1992, through February 11,1993. These sections discuss rainfall, bacteria, inorganic and organic compound concentrations, and observed and simulated loads.

Rainfall and Discharge Characteristics

The rainfall and discharge characteristics for the storms sampled from sites 1 to 5 are listed in table 11, at the back of this report. Rainfall inten­ sities and discharge hydrographs of the storms sampled are shown in figures 3 to 7. All of the storms sampled had more than 0.10 in. rainfall. At the time of sampling there had been less than 0.10 in. of rainfall in the 72 hours preceding the storm, except for the stormwater runoff sampled at site 3 beginning on July 9,1992 (which had 0.10 in. of rainfall). The rainfall depths for the storms sampled ranged from 0.22 to 0.98 in. Rainfall depths for the storms at site 3 on July 9 to 10,1992, were collected from the rain gage at site RN1 and the depth at site 2 on July 22,1992, was collected from an onsite non-recording rain gage, because of equipment malfunction at rain gage RN2 at the time of the storms. Rainfall durations ranged from 20 to 324 minutes. The storm sampled at sites 1 and 4 on February 11,1993, was preceded by 9 in. of snow that had almost melted at the time of the storm. The percentage of discharge from precipi­ tation during sampled storms ranged from 6 percent at site 1 to 66 percent at site 3.

Bacteria

Analyses of bacteria from sites 1 to 5 are listed in table 12, at the back of this report. Fecal coliform ranged from 500 col/100 mL (colonies per 100 milliliters) at site 4 to 290,000 col/100 mL at site 1; 14 of 35 estimated colony counts at all sites were based on non-ideal colony counts. Fecal streptococci ranged from 1,900 col/100 mL at site 2 to 500,000 col/100 mL at site 1; 8 of 35 estimated colony counts at all sites were based on non-ideal colony counts. A fecal coliform to fecal strepto­ cocci ratio of 4.0 or more indicates human wastes and a ratio of 0.7 or less indicates animal waste (Henry and Heinke, 1989). The ratio from 35 bacteria samples averaged 0.9. The minimum fecal coliform to fecal streptococci ratio was 0.01 at site 5, and the maximum fecal coliform to fecal strepto­ cocci ratio was 4.1 at site 5. The discharge at the time of bacteria sample collection ranged from 0.31 ft3/s at site 5 to 260 ft3/s at site 3.

Constituent Concentrations

For the first-flush samples total chlorine concentrations ranged from less than 0.1 to 0.2 mg/L with two detections from seven samples (table 12). Total cyanide was not detected in 13 first-flush samples. Total phenols ranged from less than 1 to 7 jjg/L for 13 samples with 12 detections. Total oil and grease ranged from less than 1 to 16 jig/L for 13 samples with 8 detections. Discharge at the time of sample collection for the first-flush samples ranged from 0.40 ft3/s at site 5 to 260 ft3/s at site 3.

The values of selected physical properties and constituent concentrations of the flow-weighted composite samples are listed in table 13, at the back of this report. Specific conductance ranged from 68 nS/cm at site 3 to 26,500 ^S/cm at site 5. The chemical oxygen demand for all sites ranged from 36 jig/L to 1,600 ng/L at site 3. The biochemical oxygen demand ranged from 13 mg/L at site 3 to greater than 650 mg/L at site 1. Dissolved solids

13

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concentrations ranged from 34 mg/L at site 3 to 14,700 mg/L at site 5. The site 5 basin includes large unsheltered piles of road salt. Total suspended solids concentrations ranged from 38 mg/L at site 3 to 1,200 mg/L at site 5. Nitrite plus nitrate as nitrogen concentrations ranged from less than 0.05 mg/L at site 1 to 1.5 mg/L at site 4. Total ammonia as nitrogen concentrations ranged from less than 0.01 mg/L at site 1 to 1.0 mg/L at site 3. Mean total ammonia plus organic nitrogen as nitrogen concen­ trations ranged from 0.2 mg/L at site 5 to 3.3 mg/L at site 1. Mean total phosphorus concentrations ranged from 0.12 mg/L at site 5 to 1.3 mg/L at site 1 and dissolved phosphorus concentrations ranged from less than 0.01 mg/L at sites 1 and 5 to 0.42 mg/L at site 3. Mean total organic carbon concen­ trations ranged from 12 to 410 mg/L at site 3. Total cyanide concentrations were detected twice at the detection limit of 0.01 mg/L at site 5.

Trace Elements

The sources of trace elements in streams are associated with both natural occurring chemical weathering and human activities (Viessman and Hammer, 1985). Concentrations for the whole- water recoverable trace element analyses for the flow-weighted composite samples are presented in table 14, at the back of this report. Antimony, beryllium, selenium, and thallium were not detected. The mercury concentration was 0.2 ug/L at site 4 and 0.1 and 0.3 ug/L at site 5. The following trace elements were detected (concentra­ tions are listed in parentheses): arsenic (1 to 10 ug/L), cadmium (less than 1 to 40 ug/L), chromium (less than 1 to 99 ug/L), copper (8 to 130 ug/L), lead (20 to 800 ug/L), nickel (3 to 37 ug/L), and zinc (110 to 6,200 ug/L). The largest concentrations of arsenic and chromium occurred at site 1. The largest mean concentrations of cadmium, lead, mercury, nickel, and zinc occurred at site 5. The only detection of silver was at site 4 with a concentration of 12 ug/L.

Pesticides

The results of the whole-water recoverable analyses for the pesticides from the flow-weighted composite samples are presented in table 15, at the back of this report. The concentrations are compared to Missouri water-quality criteria for human health protection-fish consumption (Missouri Department of Natural Resources, 1991b). Chlordane concentrations of 0.1,0.2, and 0.4 ug/L at site 1 and two detections of 0.1 ug/L at site 2 exceeded the water-quality criteria of 0.00048 ug/L. At site 1, cis-chlordane and trans- chlordane had concentrations of 0.1 ug/L. At site 4, concentrations ofp,p'-DDD andp,p'-DDT were at the detection limit of 0.1 ug/L, which exceeded the water-quality criteria of 0.00024 ug/L. Concentrations of diazinon were 0.2 and 1.0 ug/L at site 1; concentrations of 0.1 ug/L were detected twice at site 2; concentrations of 0.2 and 0.1 ug/L were detected at site 3; and a concen­ tration of 0.2 ug/L was detected at site 4. A dieldrin concentration of 0.05 ug/L at site 1 exceeded the water-quality criteria of 0.000076 ug/L. Lindane was detected at the detection limit of 0.03 ug/L at site 4. The polychlorinated biphenyl Aroclor 1248 concentration of 2.4 ug/L at site 4 exceeded the water-quality criteria of 0.000045 ug/L.

Volatile Organic Compounds

Of the 63 volatile organic compounds analyzed, 13 compounds were detected a total of 27 times. The results of the whole-water recov­ erable analyses of the flow-weighted composite samples from sites 1 to 5 are listed in table 16, at the back of this report. The concentrations of volatile organic compounds ranged from 0.2 to 5.1 ug/L. Naphthalene was detected with the largest concentration of 5.1 ug/L at site 2 and was detected a total of five times at sites 1, 2, 3, and 4. Ten compounds were detected at site 2, and nine of the

19

detections were from the same flow-weighted composite sample. Site 3 had eight detections of volatile organic compounds. The following compounds were detected at sites 1 to 5 during this study: benzene; n-butylbenzene; dichlorodifluo- romethane; ethylbenzene; /Msopropyltolune; 1,3,5-trimethylbenzene (mesitylene); dichlo- romethane (methylene chloride); naphthalene; n- propylbenzene; 1,2,4-trimethylbenzene (pseudoc- umene); styrene; toluene; and xylene. Concentra­ tions of volatile organic compounds detected did not exceed any of the listed water-quality criteria for human health protection-fish consumption (Missouri Department of Natural Resources, 1992).

Acidic, Basic, and Neutral Semi-Volatile Organic Compounds

The results of the whole-water recoverable analyses for the acidic, basic, and neutral semi- volatile organic compounds from the composite samples are presented in table 17, at the back of this report. Concentrations of these compounds were compared to Missouri water-quality criteria for human health protection-fish consumption (Missouri Department of Natural Resources, 1992). Concentrations of di-2-ethylhexyl phthalate were 6.0 jig/L at site 1; 6,7, and 8 jig/L at site 2; and 10 |Ag/L at site 3, and all concentra­ tions exceeded the water-quality criteria of 5.9 |Ag/L. A concentration of di-2-ethylhexyl phthalate was at the detection limit of 5 ng/L at site 5. Di-2- ethylhexyl phthalate is one of the most widely used plasticizers (Smith and others, 1988). Concentra­ tions of fluoranthene were 18 |Ag/L at site 1,15 |ig/L at site 4, and 10 |ig/L at site 5. Concentra­ tions of phenanthrene were 7 |ig/L at sites 1 and 4, and 6 |Ag/L at site 5. Concentrations of pyrene were 13 jig/L at site 1,11 jig/L at site 4, and 7 jig/L at site 5. The detections of fluoranthene, phenan­ threne, and pyrene occurred in the same flow- weighted-composite sample for each site. Fluoran­

thene, phenanthrene, and pyrene, classified as polycyclic aromatic hydrocarbons, can originate in surface water from atmospheric deposition, surface runoff, and industrial and municipal wastewater effluents (Smith and others, 1988).

Volume and Loads

The observed volume in cubic feet and loads in pounds for each site for every constituent with at least one detection and simulations for storm volume and loads calculated with the Driver and Tasker (1990) equations are listed in tables 18 to 22, at the back of this report. The observed and simulated volume and loads were compared to the second storm sampled at each site using the following equation:

Simulated value - Observed value Observed value

x 100 = percent difference (2)

For the storms sampled on October 7,1992, at site 1, chemical oxygen demand, total phosphorus, copper, and zinc loads had less than a 50 percent difference between the observed and the simulated values. For the storms sampled on September 7, 1992, at site 2, dissolved solids and dissolved phosphorus loads had less than a 50 percent difference between observed and simulated values. For the storms sampled at site 3 on August 18, 1992, volume, chemical oxygen demand, total ammonia plus organic nitrogen, total nitrogen, total phosphorus, cadmium, and zinc loads had a 50 percent or less difference between the observed and simulated values. For the storm sampled on September 26, 1992, at site 4, the difference between the simulated volume and all the simulated loads and the observed volume and loads was greater than 60 percent. For the storm sampled at site 5 on October 7,1992, the simulated and observed loads were less than 50 percent for chemical oxygen demand, suspended solids, and lead.

20

REFERENCES CITED

Benson, M.A., and Dalrymple, Tate, 1967, General field and office procedures for indirect discharge mea­ surements: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. Al, 30 p.

Bodhaine, G.L., 1968, Measurement of peak discharge at culverts by indirect methods: U.S. Geological Survey Techniques of Water-Resources Investiga­ tions, book 3, chap. A3, 60 p.

Britton, L.J., and Greeson, P.E., eds., 1989, Methods for collection and analysis of aquatic biological and microbiological samples: U.S. Geological Survey Techniques of Water-Resources Investigations, book 5, chap. A4, 363 p.

Buchanan, T. J., and Somers, W.P., 1976, Discharge measurements at gaging stations: U.S. Geological Survey Techniques of Water-Resources Investiga­ tions, book 3, chap. A8, 65 p.

Buchanan, T. J., and Somers, W.P., 1978, Stage mea­ surement at gaging stations: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. A7,28 p.

City of Independence, 1993, City of Independence com­ prehensive plan: Independence, Mo.

Dalrymple, Tate, and Benson, M.A., 1967, Measure­ ment of peak discharge by the slope-area method: U.S. Geological Survey Techniques of Water- Resources Investigations, book 3, chap. A2,12 p.

Driver, N.E., and Tasker, G.D., 1990, Techniques for estimation of storm-runoff loads, volumes, and selected constituent concentrations in urban water­ sheds in the United States: U.S. Geological Survey Water-Supply Paper 2363,40 p.

Fishman, M.J., 1993, Methods of analysis by the U.S. Geological Survey National Water Quality Labora­ tory-Determination of inorganic and organic con­ stituents in water and fluvial sediment: U.S. Geological Survey Open-File Report 93-125, 217 p.

Fishman, M.J., andFriedman, L.C., eds., 1989, Methods for determination of inorganic substances in water and fluvial sediments: U.S. Geological Survey Tech­ niques of Water-Resources Investigations, book 5, chap. Al, 545 p.

Guy, H.P., and Norman V.W., 1973, Field methods for measurement of fluvial sediment: U.S. Geological Survey Techniques of Water-Resources Investiga­ tions, book 3, chap. C2, 59 p.

Henry, J.G., and Heinke, G.W., 1989, Environmental science and engineering: Englewood Cliffs, N.J., Prentice-Hall, 728 p.

Hershfield, D.M., 1961, Rainfall frequency atlas of the United States: Weather Bureau Technical Paper 40, U.S. Government Printing Office, Washington, 61 p.

Kennedy, E.J., 1983, Computation of continuous records of streamflow: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. A13,53 p.

Missouri Department of Natural Resources, 1991, Storm water regulations-Proposed rule: Missouri Register, v. 16, no. 15, p. 1,077-1,087.

___ 1992, Missouri water-quality standards-Chapter 7, Water quality: Jefferson City, Clean Water Com­ mission, 100 p.

National Atmospheric Deposition Program (IR-7)/ National Trends Network, 1982-1991: NADP/NTN Coordination Office, Natural Resources Ecology Laboratory, Colorado State University, Fort Collins, Colorado.

National Oceanic and Atmospheric Administration, 1991,1990 local climatological data, annual sum­ mary with comparative data, Kansas City, Missouri, International Airport: Asheville, N.C., National Cli­ matological Data Center, 8 p.

Patton, C.J., and Truitt, E.P., 1992, Methods of analysis by the U.S. Geological Survey National Water Qual­ ity Laboratory-Determination of total phosphorus by a Kjeldahl digestion method and an automated colorimetric finish that includes dialysis: U.S. Geo­ logical Survey Open-File Report 92-146, 39 p.

21

Porterfield, George, 1977, Computation of fluvial-sedi­ ment discharge: U.S. Geological Survey Techniques of Water-Resources Investigations, book 3, chap. C3, 66 p.

Rantz, S.E., and others, 1982, Measurement and compu­ tation of streamflow-Volume 1. Measurement of stage and discharge: U.S. Geological Survey Water- Supply Paper 2175,284 p.

Smith, J.A., Witkowski, P.J., and Fusillo, T.V., Man- made organic compounds in the surface waters of the United States A review of current understand­ ing: U.S. Geological Survey Circular 1007, 92 p.

U.S. Environmental Protection Agency, 1983, Methods for chemical analysis of water and wastes: Cincin­ nati, Ohio, Environmental Monitoring and Support Laboratory, EPA-600/4-79-020.

___ 1988, Methods for determination of organic com­ pounds in drinking water: Cincinnati, Ohio, Envi­ ronmental Monitoring Systems Laboratory, EPA- 600/4-88-039.

_ 1990, National pollutant discharge elimination system permit application regulations for storm- water discharges, final rule: U.S. Federal Register, v. 55, no. 222. p. 47,989-48,091.

U.S. Environmental Protection Agency, 1991, Protec­ tion of environmental method 608-Organochlorine pesticides and PCBs: U.S. Code of Federal Regula­ tions, Title 40, part 136, app. A, July 1,1991, p. 398- 418.

Viessman, W., Jr., and Hammer, M.J., 1985, Water sup­ ply and pollution control (4th ed.): New York, Harper and Row, 797 p.

Ward, J. R., and Harr, C.A., eds., 1990, Methods for col­ lection and processing of surface-water and bed- material samples for physical and chemical analyses: U.S. Geological Survey Open-File Report 90-140, 71 p.

Wershaw, R. L., Fishman, M.J., Grabbe, R.R., and Lowe, L.E., eds., 1987, Methods for the determina­ tion of organic substances in water and fluvial sedi­ ments: U.S. Geological Survey Techniques of Water-Resources Investigations, book 5, chap. A3, 80 p.

22

TABLES

23

Table 1. Selected data for study sites and drainage basins and location of rain gages

[--, no data; NPDES, National Pollution Discharge Elimination System]

U.S. Sampling Geological

site NPDES Survey number permit site station (fig. 1) number number

al 17 06893635

b2 12 06893950

b3 13 06893930

a4 14 06893596

b5 15 06893960

RN1 -- 39053009- 4250701

RN2 -- 39055409- 4214101

Name of sampling site

Sugar Creek tributary

Spring Branch tributary

Crackerneck Creek tributary

Unnamed Rock Creek tributary

Unnamed Spring Branch tribu­ tary

Rooftop at downtown post office

City storage lot at Indepen­ dence Avenue and TurnerRoad

Latitude-longitude

location, In degrees, minutes, seconds

390529 0942644

390636 0942234

390409 0942241

390509 0942516

390533 0942142

390530 0942507

390554 0942141

Percentage Drainage of area area, In Predominant covered by square land use In Impervious miles drainage area surface

0.454 Single-family residential

.161 High-density residential

.177 Strip commer­ cial

.224 Office space/ commercial

.046 Light indus­ trial

--

--

42

29

62

61

35

-

-

8 Rain gage data from RN1 were used for site.b Rain gage data from RN2 were used for site except where specified.

24

Table 2. Methods, detection limits, preservations, and bottle types used for determination of constituent concentrations at the U.S. Geological Survey, Arvada, Colorado

[T, total; analytical method number I references U.S. Geological Survey methods and methods number prefixes; uS/cm, microsiemens per centi­ meter at 25 degrees Celsius; P250,250-milliliter polyethylene; NA, not applicable; mg/L, milligrams per liter; H2SO4, sulfuric acid; °C, degrees Celsius; P1000,1000-milliliter polyethylene; GB125,125-milliliter brown glass; D, dissolved; AA, atomic absorption; HNC^, nitric acid; PA250, 250-milliliter polyethylene, acid rinsed; CaCO3 , calcium carbonate; ET, electrometric titration; 1C, ion-exchange chromatography; P500, 500-mil- liliter polyethylene; S, suspended; ASF, automated-segmented flow, colorimetric; PB125,125-milliliter brown polyethylene; Cd, cadmium; WWR, whole-water recoverable; NaOH, sodium hydroxide; analytical method number E references U.S. Environmental Protection Agency meth­ ods; GFAA, graphite furnace atomic absorption; Mg/L, micrograms per liter; DCP, direct-current plasma; K2CrO3 , potassium dichromate; GA250, 250-milliliter glass, acid rinsed; analytical method number O references U.S. Geological Survey methods and methods number prefixes; H3PO^- CuSO4, phosphoric acid/copper sulfate; GB1000; 1,000-milliliter brown glass; BHC, benzene hexachloride; GC/ECD, gas chromatography/elec- tron capture detector, DDD, l,l-Dichloro-2,2-bis(p-Chlorophenyl)ethane; DDE, Dichloro diphenyl dichloroethylene; DOT, dichloro diphenyl trichloroethane; PCB, polychlorinated biphenyl; GC/MS, gas chromatography/mass spectrometric detector; HC1, hydrochloric acid; GB40,40-mil- liliter brown glass septum vial; all physical properties and constituents were analyzed from flow-weighted composite samples unless noted other­ wise]

Property or constituent Phase

Analytical method number Method

Detection limit Preservation

Bottle type

PHYSICAL PROPERTIES

Specific conductance pH

Chemical oxygen demandCalciumMagnesiumSodiumPotassiumAlkalinity, as CaCO3Hardness, as CaCO3SulfateChlorideSolids, residue at 180 °CSolids, residue at 105 °CSolids, sum of constituentsNitrite as nitrogen

Nitrite plus nitrate as nitrogen

Ammonia as nitrogen

Ammonia plus organic nitrogen Organic nitrogen Phosphorus

Cyanide

ArsenicBerylliumCadmium

Chromium

Copper

Lead

Mecury

T D D D D D D D D D S D T D T

D

T D T T T D

WWR

WWR WWR WWR WWR WWR WWR WWR WWR WWR WWR WWR

aI-2781-85 aI-2587-85

Electrometric Electrometric

1 uS/cm .1 unit

Untreated Untreated

P250 P250

COMMON CONSTITUENTS-3561-85-1152-85-1447-85-1735-85-1630-85-2030-85

NA-2057-85-2057-85

1-1750-851-3765-85

NA1-4540-901-2540-901-4545-90

1-2545-90

1-4522-901-2522-901-4515-91

NA[-4610-91[-2610-911-4302-85

Spectrometric 10 mg/LAA .1 mg/LAA .1 mg/LAA .1 mg/LAA .lmg/LET 1.0 mg/L

Computed NA1C .1 mg/L1C .1 mg/L

Gravimetric 1.0 mg/LGravimetric 1.0 mg/LComputed NA

Diazotization, ASF .01 mg/LDiazotization, ASF .01 mg/L

Cd-reduction, .05 mg/Ldiazotization, ASF

Cd-reduction, .05 mg/Ldiazotization, ASF

Salicylate-hypochlorite, ASF .01 mg/LSalicylate-hypochlorite, ASF .01 mg/LSalicylate-hypochlorite, ASF .2 mg/L

Computed NAPhosphomolybdate, ASF .01 mg/LPhosphomolybdate, ASF .01 mg/L

Barbituric acid, ASF .01 mg/L

H2SO4, 4 °CHNO3HNO3HNO3HNO3

UntreatedNA

HNO3HNO3

UntreatedUntreated

NAH2SO4, 4 °CH2SO4, 4 °CH2S04,4°C

H2SO4, 4 °C

H2SO4, 4 °CH2SO4, 4 °CH2SO4, 4 °CH2SO4, 4 °CH2SO4, 4 °CH2SO4, 4 °CNaOH, 4 °C

GB125PA250PA250PA250PA250P250NA

PA250PA250P500P500NA

PB125PB125PB125

PB125

PB125PB125PB125PB125PB125PB125P250

TRACE ELEMENTS

dE-206.2 aI-3095-85 aI-3135-85 bl-4138-89 aI-3236-85 bI-3229-87 aI-3270-85 bI-4274-89 aI-3399-85 bI-4403-89 aI-3462-85

GFAAAAAA

GFAAAADCPAA

GFAAAA

GFAACold-vapor AA

l.C 10 10 ug/L

1.0 ug/L 10 ug/L

1.0 ug/L 10 ug/L

100 ug/L 1.0 ug/L .lug/L

HNO3 HNO3 HNO3 HNO3 HNO3 HNO3 HNO3 HNO3 HNO3 HNO3

K2CrO3/HNO3

PA250 PA250 PA250 PA250 PA250 PA250 PA250 PA250 PA250 PA250 GA250

25

Table 2. Methods, detection limits, preservation, and bottle types used for determination of constituent concentrations at the U.S. Geological Survey, Arvada, Colorado-Continued

Property or constituent Phase

Analytical method number Method

Detection limit Preservation

Bottle type

TRACE ELEMENTS-Continued

Nickel

SeleniumSilverZinc

Organic carbonOils and greasefPhenolsf

AldrinAlpha BHCBeta BHCDelta BHCChlordanecis-chlordanetrans-chlordanep,p'-DDDp,/?'-DDEpy-DDTDiazinonDieldrinAlpha-endosulfanBeta-endosulfanEndosulfan sulfateEndrinEndrin aldehydeHeptachlorHeptachlor epoxideLindanePCB,Aroclorl016PCB, Aroclor 1221PCB, Aroclor 1232PCB, Aroclor 1242PCB, Aroclor 1248PCB, Aroclor 1254PCB, Aroclor 1260Toxaphene

WWRWWRWWRWWRWWR

TTT

WWRWWRWWRWWRWWRWWR

WWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWR

aI-3499-85bI-4503-89dE-270.2

bI-4724-89aI-3900-85

eO-3 100-83eO-3 108-83eO-3110-83

gE-608-91*E-608-91^£-608-91SE-608-91SE-608-91SE-608-91

SE-608-91^£-608-91SE-608-91SE-608-91^£-608-91^£-608-91*E-608-91sE-eos-gi*E-608-91SE-608-91^£-608-91SE-608-91^£-608-91SE-608-91^£-608-91^£-608-91^£-608-91^£-608-91gE-608-91^£-608-91^E-eos-gi

AAGFAAGFAAGFAA

AA

ORGANIC

Wet oxidationExtraction gravimetric

Colorimetric

PESTICIDES

GC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECD

GC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECDGC/ECD

100 ng/Ll.Ong/LI.OHS/Ll.Ong/L

10 ng/L

O.lmg/Ll.Omg/Ll.Ong/L

0.04 ng/L.3ng/L.03[ig/L.09[ig/L lUg/L IMS/L

.IMS/L

.04[ig/L

.IMS/L

.lM /L

.02Mg/L

.IMS/L

.04M&/L

.6jig/L

.06[ig/L

.2ng/L

.03[ig/L

.8ng/L

.03[ig/L Iflg/L

1 lig/L.IV&L lUg/L l|i«^.IV&L.IV&L

2 ng/L

HNO3HNO3HNO3HNO3HNO3

H2SO4, 4°CH2SO4

H3PO4/CuSO4,4 0C

4°C4°C4°C4°C4°C4°C

4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C

PA250PA250PA250PA250PA250

GB125GB1000GB1000

GB1000GB1000GB1000GB1000GB1000GB1000

GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000

VOLATILE ORGANIC COMPOUNDSSubstituted Methane

B romomethaneDibromomethaneBromoformBromochloromethaneDibromochloromethaneChloromethaneDichloromethaneTrichloromethaneTetrachloromethaneDichlorobromomethaneDichlorodifluoromethaneTrichlorofluoromethane

WWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWR

hE-524.2hE-524.2hE-524.2hE-524.2h£-524.2hE-524.2h£-524.2hE-524.2h£-524.2hE-524.2h£-524.2hE-524.2

GC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MS

0.2ng/L.2jig/LIV&L 2»&L.IVS/L.IVS/L 2\is/L 2ng/L.2flg/L.2ng/L.2M-g/L.2ng/L

HC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1,4°CHC1,4°CHC1,4°CHC1, 4 °CHC1, 4 °CHC1,4°CHC1, 4 °CHC1,4°C

GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40

Substituted Ethane

Chloroe thane1 ,2-Dibromoethane1 , 1 -Dichloroethane1 ,2-Dichloroethane

WWRWWRWWRWWR

hE-524.2hE-524.2hE-524.2h£-524.2

GC/MSGC/MSGC/MSGC/MS

0.2ng/L.2flg/L.2|ig/L.2flg/L

HC1,4°CHC1, 4 °CHC1, 4 °CHC1, 4 °C

GB40GB40GB40GB40

26

Table 2. Methods, detection limits, preservation, and bottle types used for determination of constituent concentrations at the U.S. Geological Survey, Arvada, Colorado-Continued

Property or constituent

Analytical Phase method number Method

Detection limit Preservation

Bottle type

VOLATILE ORGANIC COMPOUNDS-Continued Substituted Ethane-Continued

1.1.1-Trichloroethane WWR1.1.2-Trichloroethane WWR1,1,1,2-Tetrachloroethane WWR1,1,2,2-Tetrachloroethane WWRTrichlorotrifluoroethane WWR

Chloroethene WWR1,1 -Dichloroethene WWRcis-1,2-Dichloroethene WWRtrans-l,2-Dichloroethene WWR1,1,2-Trichloroethene WWR1,1,2,2-Tetrachloroethene WWR

1.2-Dichloropropane WWR1.3-Dichloropropane WWR2,2-Dichloropropane WWR1,2,3-Trichloropropane WWRl,2-Dibromo-3-chloropropane WWR

1,1-Dichloropropene WWRcis-l,3-Dichloropropene WWRtrans-l,3-Dichloropropene WWR

Hexachlorobutadiene WWR

Benzene WWRBromobenzene WWRChlorobenzene WWR1.2-Dichlorobenzene WWR1.3-Dichlorobenzene WWR1.4-Dichlorobenzene WWR1.2.3-Trichlorobenzene WWR1.2.4-Trichlorobenzene WWRXylenes, total WWR1,2,4-Trimethylbenzene WWR1,3,5-Trimethylbenzene WWREthylbenzene WWR«-Propylbenzene WWR«-Butylbenzene WWR(l-Methylethyl)benzene WWR (U-Dimethylethyl)benzene WWR(l-Methylpropyl)benzene WWRStyrene WWRToluene WWR2-Chlorotoluene WWR4-Chlorotoluene WWRp-Isopropyltoluene WWRNaphthalene WWR

2-Chloroethylvinyl ether WWR Methyl-tertiary-butyl ether WWR

hE-524.2 hE-524.2 hE-524.2 hE-524.2 hE-524.2

GC/MSGC/MSGC/MSGC/MSGC/MS

0.2ng/L.2 [tg/L.2 }ig/L 2ng/L.5pg/L

HC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °C

GB40GB40GB40GB40GB40

Substituted Ethene

hE-524.2 hE-524.2 hE-524.2 hE-524.2 hE-524.2 hE-524.2

Substituted Propane

hE-524.2 GC/MShE-524.2 GC/MShE-524.2 GC/MShE-524.2 GC/MShE-524.2 GC/MS

Substituted Propene

hE-524.2 GC/MShE-524.2 GC/MShE-524.2 GC/MS

GC/MSGC/MSGC/MSGC/MSGC/MSGC/MS

0.2ng/L.2 jog/L 2ng/L.2 jog/L.2 }ig/L.2 |ig/L

HC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °C

GB40GB40GB40GB40GB40GB40

Substituted ButenehE-524.2 GC/MS

Benzene Derivative

hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2hE-524.2

hE-524.2hE-524.2

GC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MSGC/MS

Ether

GC/MSGC/MS

0.2ng/L

0.2 Mg/L

0.2\ig/L

.2Mg/L

HC1, 4 °C HC1, 4 °C HC1, 4 °C HC1, 4 °C HC1, 4 °C

HC1, 4 °C HC1, 4 °C HC1, 4 °C

HC1, 4 °C

GB40 GB40 GB40 GB40 GB40

GB40 GB40 GB40

GB40

HC1,4°CHC1,4°CHC1,4°CHC1, 4 °CHC1,4°CHC1, 4 °CHC1, 4 °CHC1,4°CHC1,4°CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1, 4 °CHC1,4°CHC1,4°CHC1,4°CHC1,4°CHC1, 4 °CHC1, 4 °CHC1, 4 °C

GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40GB40

LO^g/LHC1,4 °C HC1,4°C

GB40 GB40

27

Table 2. Methods, detection limits, preservation, and bottle types used for determination of constituent concentrations at the U.S. Geological Survey, Arvada, Colorado-Continued

Property or constituent Phase

Analytical method number Method

Detection limit Preservation

Bottle type

Acrolein

Acrylonitrile

1.2-Dichlorobenzene1.3-Dichlorobenzene1.4-Dichlorobenzene1,2,4-TrichlorobenzeneHexachlorobenzeneNitrobenzene2,4-Dinitrotoluene2,6-Dinitrotoluene

Phenol2-Chlorophenol2-Nitrophenol4-Nitrophenol2,4-Dichlorophenol2,4-Dimethylphenol2,4-Dinitrophenol4-Chloro-3-methylphenol2,4,6-Trichlorophenol4-Methyl-4,6-dinitrophenolPentachlorophenol

NaphthaleneAcenaphthyleneAcenaphtheneFluoreneAnthracenePhenanthreneFluoranthenePyreneBenzo[a]anthraceneChryseneBenzo[o]pyreneBenzo[fc]fluorantheneB enzo [k] fluorantheneBenzo[gAflperyleneIndenof 1,2,3-«f]pyreneDibenzo[a,/i]anthracene

WWR

WWR

VOLATILE ORGANIC COMPOUNDS-Continued Aldehyde

hE-524.2

NitrilehE-524.2

GC/MS

GC/MS

20 jig/L

20 jig/L

HC1,4°C

HC1, 4 °C

ACIDIC, BASIC, AND NEUTRAL SEMI-VOLATILE ORGANIC COMPOUNDS1 Substituted Benzene

WWR WWR WWR WWR WWR WWR WWR WWR

WWR WWR WWR WWR WWR WWR WWR WWR WWR WWR WWR

bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87

GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS

Substituted PhenolbO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87 bO-3116-87

GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS

5ng/L

5\ig/L 20 ng/L 30ng/L

30jig/L 30jig/L

WWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWRWWR

bO-3116-87bO-31 16-87bO-3116-87bO-3 116-87bO-3 116-87bO-31 16-87bO-31 16-87bO-31 16-87bO-3116-87bO-31 16-87bO-31 16-87bO-31 16-87bO-3 116-87bO-3116-87bO-3 116-87bO-3 116-87

Polycyclic Aromatic Hydrocarbon

GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS

5ng/L

10 ng/L

10 ng/L 10 ng/L 10 ng/L

Phthalic Add Ester, n-Nitroso Compound, Isophorone, and 1,2-diphenylhydrazinebO-3116-87 bO-3116-87 bO-3116-87

Dimethyl phthalate WWRDiethyl phthalate WWRDi-n-butyl phthalate WWRn-Butylbenzyl phthalate WWR bO-3116-87Di-n-octyl phthalate WWR bO-3116-87Di-2-ethylhexyl phthalate WWR bO-3116-87n-Nitrosodimethylamine WWR bO-3116-87n-Nitrosodi-n-propylamine WWR bO-3116-87n-Nitrosodiphenylamine WWR bO-3116-87Isophorone WWR bO-3116-871,2-Diphenylhydrazine WWR bO-3116-87

GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS

5ng/L

10ng/L

5ng/L 5ng/L

4°C 4°C 4°C 4°C 4°C 4°C 4°C 4°C 4°C 4°C 4°C

GB40

GB40

4°C4°C4°C4°C4°C4°C4°C4°C

GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000

4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C

GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000

4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C4°C

GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000GB1000

GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000

28

Table 2. Methods, detection limits, preservation, and bottle types used for determination of constituent concentrations at the U.S. Geological Survey, Arvada, Colorado-Continued

Property or constituent Phase

Analytical method number Method

Detection limit Preservation

Bottle type

ACIDIC, BASIC, AND NEUTRAL SEMI-VOLATILE ORGANIC COMPOUNDS-ContinuedHalogenated Compound

Hexachloroethane WWR bO-3116-87bis(2-Chloroethyl) ether WWR bO-3116-87bis(2-Chloroisopropyl) ether WWR bO-3116-87bis(2-Chloroethoxy) methane WWR bO-3116-87Hexachlorobutadiene WWR bO-3116-87Hexachlorocyclopentadiene WWR bO-3116-874-Bromophenyl phenyl ether WWR bO-3116-874-Chlorophenyl phenyl ether WWR bO-3116-872-Chloronaphthalene WWR bO-3116-87

GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS GC/MS 4°C

GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000 GB1000

Substituted Biphenyl

4,4'-Diaminobiphenyl 4,4'-Diamino-3,3'-

dichlorobiphenyl

WWR WWR

bO-3116-87 bO-3116-87

GC/MS GC/MS

40 Mg/L 20 Mg/L

4°C 4°C

GB1000 GB1000

a Fishman and Friedman (1989).b Methods of analysis from Fishman (1993).c Patton and Truitt (1992).d U.S. Environmental Protection Agency (1983).6 Wershaw and others (1983).f Analyzed for discrete samples.g U.S. Environmental Agency (1991).h U.S. Environmental Agency (1988).1 Methylene chloride extractable organic compounds.

Table 3. Methods, detection limits, preservations, and bottle types used for determination of constituent concentrations at the Enseco Rocky Mountain Analytical Laboratory, Arvada, Colorado

[Mg/L, micrograms per liter, HNO3 , nitric acid; PA250,250-milliliter polyethylene, acid rinsed; mg/L, milligrams per liter; NaOH, sodium hydrox­ ide; °C, degrees Celsius; P250, 250-milliliter polyethylene]

Constituent Phase

U.S. Environmental Protection Agency

analytical Detection Sample type method number11 limit Perservatlon Bottle type

AntimonySilverThalliumCyanide

TotalTotalTotalTotal

CompositeCompositeCompositeFirst flush

204.2272.2279.2335.3

10 ug/L.5 ug/L

5.0 ug/L.01 mg/L

HNO3HNO3HNO3

NaOH, 4 °C

PA250PA250PA250P250

1 U.S. Environmental Protection Agency, 1983.

29

Tabl

e 4.

Val

ues

of s

elec

ted

phys

ical

pro

perti

es a

nd c

onst

ituen

t con

cent

ratio

ns in

sto

rmw

ater

-run

off r

eplic

ate

sam

ples

from

site

s 2

and

4

[uS/

cm, m

icro

seim

ens

per c

entim

eter

at 2

5 de

gree

s C

elsi

us; m

g/L

, mill

igra

ms

per

liter

; ug

/L, m

icro

gram

s pe

r lite

r, °C

, deg

rees

Cel

sius

; ,

no d

ata]

Rep

licat

e nu

mbe

r

1 2 1 2

Rep

licat

e nu

mbe

r

1 2 1 2

Site

nu

mbe

r (fi

g. 1

) D

ate

2 12

-09-

9212

-09-

92

4 02

-11-

9302

-11-

93

Sodi

um

Site

di

ssol

ved,

nu

mbe

r as

Na

(fig.

1)

(mg/

L)

2 11

011

0

4 19

Endi

ng

Tim

e da

te

0118

12

-09-

9201

23

0245

02

-11-

9303

45

Pota

ssiu

m

diss

olve

d,

Alk

alin

ity,

as K

as

CaC

O3

(mg/

L)

(mg/

L)

2.5

110

2.3

109

1.8

89__

Endi

ng

time

0608 ~

0445

Sulfa

te

diss

olve

d,

asS

O4

(mg/

L) 27 28 21

Bio

-C

hem

ical

ch

emic

al

Cal

cium

Sp

ecifi

c ox

ygen

ox

ygen

di

ssol

ved,

co

nduc

tanc

e de

man

d de

man

d as

Ca

(uS/

cm)

(mg/

L)

(mg/

L)

(mg/

L)

858

480

30

4885

5 67

-

45

311

210

44

2430

6

Dis

solv

ed

Susp

ende

d D

isso

lved

C

hlor

ide

solid

s,

solid

s,

solid

s,

Nitr

ite a

s di

ssol

ved,

re

sidu

e re

sidu

e su

m o

f N,

as

CI

at18

0°C

at

105°

C

cons

titue

nts

tota

l (m

g/L)

(m

g/L)

(m

g/L)

(m

g/L)

(m

g/L)

160

458

107

419

<0.0

117

0 45

5 -

426

<.01

26

131

112

145

133

142

Mag

nesi

um

diss

olve

d,

asM

g (m

g/L)

5.8

5.5

1.5

Nitr

ite a

s N,

di

ssol

ved

(mg/

L)

_ ~ 0.01

<.01

Tabl

e 4.

Val

ues

of s

elec

ted

phys

ical

pro

perti

es a

nd c

onst

ituen

t con

cent

ratio

ns in

sto

rm w

ater

-run

off r

eplic

ate

sam

ples

from

site

s 2

and

4-C

ontin

ued

Rep

licat

enu

mbe

r

1 2 1 2

Site

num

ber

(fig- 1

)

2 4

Nitr

ite p

lus

nitr

ate

tota

l,as

N(m

g/L)

0.58 .5

7

_

Nitr

ite p

lus

nitr

ate

diss

olve

d,as

N(m

g/L)

_ - 1.5 .8

4

Am

mon

ia p

lus

Am

mon

iato

tal,

asN

(mg/

L)

0.3

4.3

5

_

Am

mon

iadi

ssol

ved,

asN

(mg/

L)

_ - 0.51 .8

2

orga

nic

nitr

ogen

tota

l, as

N(m

g/L)

1.4

1.4

1.5

1.8

Org

anic

nitr

ogen

tota

l,as

N(m

g/L)

1.1

1.1

Pho

spho

rus

tota

l,a

sP(m

g/L)

0.31 .3

2

.28

.27

Pho

spho

rus

diss

olve

d,a

sP(m

g/L)

0.10 .1

0

.08

.06

Ars

enic

tota

l,as

As

(M9/

L)

2 2 2 2

Ber

ylliu

m,

who

le- w

ater

reco

vera

ble,

as B

e(M

9/L)

<10 -

<10

<10

Cad

miu

m,

Chr

omiu

m,

Cop

per,

Lead

, N

icke

l, S

ilver

, Zi

nc,

who

le-w

ater

w

hole

-wat

er

who

le-w

ater

w

hole

-wat

er

who

le-w

ater

Se

leni

um,

who

le-w

ater

Si

lver

,8

who

le-w

ater

Site

re

cove

rabl

e re

cove

rabl

e re

cove

rabl

e re

cove

rabl

e re

cove

rabl

e to

tal

reco

vera

ble

tota

l re

cove

rabl

eR

eplic

ate

num

ber

as C

d as

Cr

as C

u as

Pb

as N

i as

Se

as A

g as

Ag

as Z

nnu

mbe

r (fi

g. 1

) (n

g/L)

(n

g/L)

(fj

g/L)

(n

g/L)

fti

g/L)

(p

g/L)

(n

g/L)

(fj

g/L)

(n

g/L)

31<2 <2

<111

0

24 2417 18

110 99

<2

<2<.

5030

029

0

aAna

lyze

d by

Ens

eco

Roc

ky M

ount

ain

Ana

lytic

al L

abor

ator

y, A

rvad

a, C

olor

ado.

Tabl

e 5.

Con

cent

ratio

n an

d pe

rcen

t rec

over

y of

pes

ticid

es in

mat

rix s

pike

d sa

mpl

e se

ts fr

om s

ite 1

, Sep

tem

ber

2,19

92

[All

conc

entra

tions

in m

icro

gram

s pe

r lite

r; pe

rcen

t rec

over

y -

(spi

ked

sam

ple

conc

entra

tion

- uns

pike

d sa

mpl

e co

ncen

tratio

n) x

100

per

cent

/(spi

ke m

ixtu

re c

once

ntra

tion^

10 x

sam

ple

volu

me)

); <,

less

th

an B

HC

; ben

zene

hex

achl

orid

e; O

DD

, l,l-

Dic

hlor

o-2,

2-bi

s(p-

chlo

roph

enyl

)eth

ane;

DD

E, D

ichl

oro

diph

enyl

dic

hlor

oeth

ylen

e; D

OT,

Dic

hlor

o di

phen

yl tr

ichl

oroe

than

e; N

A, n

ot a

pplic

able

]

Pest

icid

e

Ald

rinA

lpha

BH

C

Bet

a B

HC

Del

ta B

HC

Chl

orda

neci

s-C

hlor

dane

trans

-Chl

orda

nep,

p'-D

DD

p,

p'-D

DE

Die

ldrin

Alp

ha-e

ndos

ulfa

n B

eta-

endo

sulfa

nEn

dosu

lfan

sulfa

teEn

drin

Endr

in a

ldeh

yde

Hep

tach

lor

Hep

tach

lor e

poxi

de

Lind

ane

PCB

, Aro

clor

101

6 PC

B, A

rocl

or 1

221

PCB

, Aro

clor

123

2PC

B, A

rocl

or 1

242

PCB

, Aro

clor

124

8PC

B, A

rocl

or 1

254

PCB

, Aro

clor

126

0To

xaph

ene

Uns

pike

d sa

mpl

e co

ncen

trat

ion

<0.0

4<.

03

<.03

<.09 .4 .1 .1 <.04 .0

5

<.04

<.6

<.06

<.03

<.03

<LO

<.l <.l

<.l

<.l

<.l

<2

Spik

e m

ixtu

re

conc

entr

atio

n8

10 10

10 10 0 0 0 60

20

60 20 20

20 60 20 60

10

10

10 0 0 0 0 0 0 0 0

Fiel

d sp

iked

sam

pleb

Con

cent

ratio

n

0.76 .7

7 .8

9.6

6<

.l<

.l<

.l 3.0

1.6

4.0

1.6

2.0

1.5

4.8

1.8 .6

9 .8

.7

2

<LO

<1.

0<

1.0

<1.

0<

1.0

<.l

<2

Perc

ent

reco

very

74 75

86 64 NA

NA

NA 48

78

65 78 97 73 77 87 <3

67

77

70 NA

N

AN

AN

AN

AN

AN

AN

A

Rep

licat

e fie

ld s

pike

d sa

mpl

e0

Perc

ent

Con

cent

ratio

n re

cove

ry

0.84 .9

31.

2 .95

<.l

<.l

<.l

5.0

1.7

4.2

2.1

2.0

2.0

<.60

2.3 .8

5 1.

0 .94

<LO

<1.

0<

1.0

<1.

0<

1.0

<.l

<2

76 84

108 85 NA

NA

NA 75

76

63 94 90

90 <9 10

3 <3

76

90

84 NA

N

AN

AN

AN

AN

AN

AN

A

Lab

spik

ed s

ampl

ed

Con

cent

ratio

n

0.29 .8

6 .9

6.7

1<

.l<

.l<

.l 4.4

1.8

4.6

2.0

1.4

1.8

5.9

2.3

3.9 .9

6 .9

0 .9

2

<LO

<1.

0<

1.0

<1.

0<

1.0

<.l

<2

Perc

ent

reco

very

26 78

88 65 NA

NA

NA 67

82

70 91 64

82 90 10

5 59

88

82

84 NA

N

AN

AN

AN

AN

AN

AN

A

* Sam

ple

volu

me

is 0

.000

1 lit

er.

b Sa

mpl

e vo

lum

e is

0.9

69 li

ter.

c Sam

ple

volu

me

is 0

.899

lite

r. d

Sam

ple

volu

me

is 0

.912

lite

r.

Tabl

e 6.

Con

cent

ratio

n an

d pe

rcen

t rec

over

y of

pes

ticid

es in

mat

rix s

pike

d sa

mpl

e se

ts fr

om s

ite 1

, Fe

brua

ry 1

1,19

93

[All

conc

entra

tions

in m

icro

gram

s pe

r lite

r; pe

rcen

t rec

over

y -

(spi

ked

sam

ple

conc

entra

tion

- uns

pike

d sa

mpl

e co

ncen

tratio

n) x

100

per

cent

/(spi

ke m

ixtu

re c

once

ntra

tion/

(10

x sa

mpl

e vo

lum

e));

<, le

ss

than

; BH

C, b

enze

ne h

exac

hlor

ide;

DD

D, l

,l-D

ichl

oro-

2,2-

bis(

p-ch

loro

phen

yl)e

than

e; D

DE,

Dic

hlor

o di

phen

yl d

ichl

oroe

thyl

ene;

DD

T, D

ichl

oro

diph

enyl

tric

hlor

oeth

ane;

NA

, not

app

licab

le]

Pest

icid

e

Ald

rinA

lpha

BH

C

Bet

a B

HC

Del

ta B

HC

Chl

orda

neci

s-C

hlor

dane

trans

-Chl

orda

nep,

p' -D

DD

p,

p' -D

DE

p,

p'-D

DT

Die

ldrin

Alp

ha-e

ndos

ulfa

n B

eta-

endo

sulfa

nEn

dosu

lfan

sulfa

teEn

drin

Endr

in a

ldeh

yde

Hep

tach

lor

Hep

tach

lor e

poxi

de

Lind

ane

PCB

, Aro

clor

101

6PC

B, A

rocl

or 1

221

PCB

, Aro

clor

123

2PC

B, A

rocl

or 1

242

PCB

, Aro

clor

124

8PC

B, A

rocl

or 1

254

PCB

, Aro

clor

126

0To

xaph

ene

Uns

pike

d sa

mpl

e co

ncen

trat

ion

<0.0

4<.

03

<.03

<09 .1 <.l

<.l

<.04

<.02

<.04

<.6

<.06

<2

<.03

<.03

<.l

<1.0 <.l

<.l

<.l

<.l

<1

<2

Spik

e m

ixtu

re

conc

entr

atio

n8

10 10

10 10 0 0 0 60

20

60

20 20

20 60 20 60

10

10

10 0 0 0 0 0 0 0 0

Fiel

d sp

iked

sam

pleb

Con

cent

ratio

n

0.98 1.0

1.2

1.0

<.l

<.l

<.l

6.4

1.8

6.2

1.6

1.8

1.6

7.0

2.0

1.2

1.0

1.2

1.0

<1.0

<1.0

<1.0

<1.0

<1.0

<1.0 <.l

<2

Perc

ent

reco

very

97 99

119 99 NA

NA

NA

106 89

102 79 89

79 116 99 20

99

11

9 99 NA

NA

NA

NA

NA

NA

NA

NA

Rep

licat

e fie

ld s

pike

d sa

mpl

e0

Perc

ent

Con

cent

ratio

n re

cove

ry

0.84 .9

2 1.

01.

0<.

l<.

l<.

l5.

2 1.

4 5.

0 1.

61.

6 1.

65.

01.

81.

2 .84

1.0 .84

<1.0

<1.0

<1.0

<1.0

<1.0

<1.0 <.l

<2

83 91

99 99 NA

NA

NA 86

69

82

79 79

79 82 89 20

83

99

83 NA

NA

NA

NA

NA

NA

NA

NA

Rep

licat

e la

b sp

iked

sam

pled

Pe

rcen

t C

once

ntra

tion

reco

very

0.86 .8

8 1.

0 .90

<.l

<.l

<.l 5.6

1.8

5.4

1.0

1.4

1.6

5.0

1.6

4.2 .8

8 1.

0 .94

<1.

0<

1.0

<1.

0<

1.0

<1.

0<

1.0

<.l

<2

85 87

99 89 NA

NA

NA 92

89

89

49 69

79 82 79 69

87

99

93 NA

NA

NA

NA

NA

NA

NA

NA

* Sam

ple

volu

me

is 0

.000

1 lit

er.

b Sa

mpl

e vo

lum

e is

0.9

90 li

ter.

c Sam

ple

volu

me

is 0

.991

lite

r. d

Sam

ple

volu

me

is 0

.989

lite

r.

g

Tabl

e 7.

Con

cent

ratio

n an

d pe

rcen

t rec

over

y of

aci

dic,

bas

ic, a

nd n

eutra

l sem

i-vol

atile

org

anic

com

poun

ds in

mat

rix s

pike

d sa

mpl

e se

ts fr

om s

ite 3

, Aug

ust 1

8,19

92

[All

conc

entra

tions

in m

icro

gram

s pe

r lite

r, pe

rcen

t rec

over

y -

(spi

ked

sam

ple

conc

entra

tion

- uns

pike

d sa

mpl

e co

ncen

tratio

n) x

100

per

cent

/(spi

ked

mix

ture

con

cent

ratio

n^ 10

x s

ampl

e vo

lum

e));

<, le

ss

than

; NA

, not

app

licab

le]

Uns

pike

d sa

mpl

e C

ompo

und

conc

entr

atio

n

Spik

e m

ixtu

re

conc

entr

atio

n11

Fiel

d sp

iked

sam

ple1

*R

eplic

ate

field

spi

ked

sam

pleb

Perc

ent

Perc

ent

Con

cent

ratio

n re

cove

ry

Con

cent

ratio

n re

cove

ry

Rep

licat

e la

b sp

iked

sam

ple1

* Pe

rcen

t C

once

ntra

tion

reco

very

Subs

titut

ed B

enze

ne1 ,

2-D

ichl

orob

enze

ne1 ,

3-D

ichl

orob

enze

ne1 ,

4-D

ichl

orob

enze

ne1 ,

2,4-

Tric

hlor

oben

zene

Hex

achl

orob

enze

neN

itrob

enze

ne2,

4-D

initr

otol

uene

2,6-

Din

itrot

olue

ne

Phen

ol2-

Chl

orop

heno

l2-

Nitr

ophe

nol

4-N

itrop

heno

l2,

4-D

ichl

orop

heno

l2,

4-D

imet

hylp

heno

l2,

4-D

initr

ophe

nol

4-C

hlor

o-3 -

met

hylp

heno

l2,

4,6-

Tric

hlor

ophe

nol

4-M

ethy

l-4,6

-din

itrop

heno

lPe

ntac

hlor

ophe

nol

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <30 <5 <5 <20

<30

<20

<30

<30

200

200

200

200

200

200

200

200

500

500

500

2,50

050

050

01,

500

2,50

01,

500

2,50

02,

500

10 8 8 11 12 13 6 13 <5 27 29 49 35 43 64 180 95 97 150

50 40 40 55 60 65 30 65

Subs

titut

ed P

heno

l<

10 54 58 19 70 86 43 72 63 39 60

9 7 8 12 8 15 6 15 9 33 37 63 41 51 100

220

120

150

210

45 35 40 60 40 75 30 75 18 66 74 25 82 102 67 88 80 60 84

11 10 10 12 15 15 18 17 21 34 37 55 40 51 90 210

110

110

190

55 50 50 60 75 75 90 85 42 68 74 22 80 102 60 84 73 44 76

Poly

cycl

ic A

rom

atic

Hyd

roca

rbon

Nap

htha

lene

Ace

naph

thyl

ene

Ace

naph

then

eR

uore

neA

nthr

acen

ePh

enan

thre

neR

uora

nthe

nePy

rene

Ben

zo[a

]ant

hrac

ene

Chr

ysen

eB

enzo

[a]p

yren

eB

enzo

[fr]

fluo

rant

hene

Ben

zo[£

]flu

oran

then

eB

enzo

[g,A

,i]pe

ryle

neIn

deno

[7 ,2

,3-o

/]py

rene

Dib

enzo

[a,A

]ant

hrac

ene

<5 <5 <5 <5 <5 <5 <5 <5 <10

<10

<10

<10

<10

<10

<10

<10

200

200

200

200

200

200

200

200

200

200

200

200

200

200

200

200

13 10 13 14 11 14 8 6<

10 <10

<10

<10 <10 26 27 27

65 50 65 70 55 70 40 30<

50<

50 <50

<50

<50 13

013

513

5

14 11 14 15 8 14 7<5 <10

<10 <10

<10

<10 18 19 17

70 55 70 75 40 70 35<2

5<

50<

50<

50 <50

<50 90 95 85

14 13 14 15 13 15 7<5 12 13

<10

<10

<10 36 39 38

70 65 70 75 65 75 35<2

5 60 65<

50<

50<

50 180

195

190

Tabl

e 7.

Con

cent

ratio

n an

d pe

rcen

t rec

over

y of

aci

dic,

bas

ic, a

nd n

eutra

l sem

i-vol

atile

org

anic

com

poun

ds in

mat

rix s

pike

d sa

mpl

e se

ts fr

om s

ite 3

, Aug

ust

18,1

992

-Con

tinue

d

Uns

pike

d sa

mpl

e C

ompo

und

conc

entr

atio

n

Spik

e m

ixtu

re

conc

entr

atio

n*

Fiel

d sp

iked

sam

pleb

Perc

ent

Con

cent

ratio

n re

cove

ry

Fiel

d sp

iked

rep

licat

e sa

mpl

eb

Con

cent

ratio

nP

erce

nt

reco

very

Lab

spik

ed r

eplic

ate

sam

pleb

Con

cent

ratio

nPe

rcen

t re

cove

ry

Pht

halk

Aci

d E

ster

, n-N

itros

o C

ompo

und,

Isop

horo

ne, a

nd 1

,2-d

iphe

nylh

ydra

zine

Dim

ethy

l pht

hala

teD

ieth

yl p

htha

late

Di-n

-but

yl p

htha

late

n-B

utyl

benz

yl p

htha

late

Di-n

-oct

yl p

htha

late

Di-2

-eth

ylhe

xyl p

htha

late

n-N

itros

odim

ethy

lam

ine

n-N

itros

odi-n

-pro

pyla

min

en-

Nitr

osod

iphe

nyla

min

eIs

opho

rone

1 ,2-

Dip

heny

lhyd

razi

ne

<5 <5 <5 <5 <10 <5 <5 <5 <5 <5 <5

200

200

200

200

200

200

200

200

200

200

200

11 16 12 21

55 80 60 105

14

7019 8 16 12 <5 13

95 40 80 60<2

5 65

13 18 13 18 10 16 8 17 13 <5 14

65 90 65 90 50 80 40 85 65<2

5 70

16 19 12 21 18 21 9 17 13 8 14

80 95 60 105 90 105 45 85 65 40 70

Hal

ogen

ated

Com

poun

dH

exac

hlor

oeth

ane

bis(

2-C

hlor

oeth

yl)

ethe

rbi

s(2-

Chl

oroi

sopr

opyl

) eth

erbi

s(2-

Chl

oroe

thox

y)m

etha

neH

exac

hlor

obut

adie

neH

exac

hlor

ocyc

lope

ntad

iene

4-B

rom

ophe

nyl p

heny

l eth

er4-

Chl

orop

henl

y ph

enyl

eth

er2-

Chl

oron

apht

hale

ne

4,4'

-Dia

min

obip

heny

l4,

4'-D

iam

ino-

3,3'

-di

chlo

robi

phen

yl

<5 <5 <5 <5 <5 <5 <5 <5 <5 <40

<20

200

200

200

200

200

200

200

200

200

200

200

9 13 16 16 11 <5 <5 17 13

<40

<20

45 65 80 80 55<2

5<2

5 85 65

Subs

titut

ed B

iphe

nyl

NA

<10

0

7 14 17 17 11 <5 <5 18 14

<40 <20

35 70 85 85 55<2

5<2

5 90 70 NA

<10

0

9 14 18 17 9<5 <5 17 13

<40 <2

0

45 70 90 85 45<2

5<2

5 85 65 NA

<10

0

a Sam

ple

volu

me

is 0

.000

1 lit

er.

b Sa

mpl

e vo

lum

e is

1.0

lite

r.

Table 8. Concentration and percent recovery of volatile organic compounds in matrix spiked sample sets from site 2, December 9,1992

[All concentrations in micrograms per liter; percent recovery - (Lab spiked sample concentration - unspiked sample concentration) x 100 percent/ (spiked mixture concentration^ 10 x sample volume)); <, less than; sample volume is 40 milliliters]

Compound

BromomethaneBromoformDibromochloromethaneChloromethaneDichloromethaneTrichloromethaneTetrachloromethaneDichlorobromomethaneTrichlorofluoromethaneChloroethane1,1-Dichloroethane1 ,2-Dichloroethane1,1,1 -Trichloroethane1 , 1 ,2-Trichloroethane1 , 1 ,2,2-TetrachloroethaneChloroethene1 , 1 -Dichloroethenecis- 1 ,2-Dichloroethenetrans- 1 ,2-Dichloroethene1 , 1 ,2-Trichloroethene1 , 1 ,2,2-Tetrachloroethene1 ,2-Dichloropropanecis- 1 ,3-Dichloropropenetrans- 1 ,3-DichloropropeneBenzeneChlorobenzeneEthylbenzeneToluene

Unspiked Spiked sample mixture

concentration concentration

<0.2 4.8<.2 5.8<.2 6.1<.2 3.5<.2 7.9<.2 5.2<.2 5.4<.2 5.7<.2 2.6<.2 4.1<.2 4.9<.2 5.0<.2 4.4<.2 5.4<.2 5.0<.2 3.5<.2 4.3<.2 5.1<.2 5.0<.2 5.3<.2 5.6<.2 5.1<.2 4.8<.2 6.1<.2 5.1<.2 5.9<.2 6.1<.2 6.1

Lab spiked samplePercent

Concentration recovery

6.8131310161012125.79.5

10111112127.98.6

109.1

111211101411121213

579085

1148177898488938288

100899690807873838686839286817985

36

Table 9. Statistical summary of physical properties and constituent concentrations in water samples collected at base- flow sampling sites in October 1991 and January to February 1992

[ft3/s, cubic feet per second; uS/cm, microsiemens per centimeter at 25 degrees Celsius; °C, degrees Celsius; mg/L, milligram per liter; <, less than; ug/L, microgram per liter; NA, not applicable; pH, in standard units]

Constituentor

physical property

DischargeSpecific conductancepHTemperatureChlorine, totalCopper, totalDetergents, totalPhenols, total

Detectionlimit

0.001 ft3/s.5 nS/cm

4.0 to 10.050 °C

A mg/L-lug/L

.05 mg/L

.02 mg/L

Number ofoccurrencesgreater than

detection limit*

C219d225e222e222

«45010

Number ofsites with

occurrencesgreater than

detection ilmitb

18719218918939010

Mean ofoccurrencesgreater than

detection limit

0.126899

f7.99.3

.23NA

.3NA

Minimum

<0.001325

6.7.5

<.l<.l<.05<.02

Maximum

10.12,530

9.824.0

.90<.l

.3<.02

a Two-hundred twenty-six total samples.One hundred ninety-three total sites.

c Discharge was not measured for one sample.One sample not analyzed.

e Four samples not analyzed.If pH is not normally distributed, mean pH will not satisfactorily summarize the typical hydrogen ion concentration.

g Three samples not analyzed.

37

Table 10. Values of selected physical properties and constituent concentrations of water samples collected during base- flow conditions

[A, Adair Creek; B, Bundschu Creek; BR, Blue River; C, Crackerneck Creek; FP, Fire Prairie Creek; LB, Litde Blue River; M, Mill Creek; R, Rock Creek; S, Sugar Creek; SB, Spring Branch Creek; WFP, West Fire Prairie Creek; r^/s, cubic feet per second; °C, degrees Celsius; mg/L, milligrams per liter; ^iS/cm, microseimens per centimeter at 25 degrees Celsius; <, less than; --, no data]

Site number(fig. 2)

AlA2A3A4A5

A6A7A8A9

A10

All

A12

A13A14

A15

A16A17

A18A19A50

A51

A52A53A54A55

A56A57A58A59A60

A95A96A97A98

A99

Date

01-29-9201-29-9201-29-9201-29-9201-30-9201-31-92

01-30-9201-30-9201-30-9201-30-9201-31-9201-30-9201-31-92

01-30-9201-31-9201-30-9201-31-9201-30-9201-30-9201-31-9201-30-92

01-30-9201-30-9201-31-9201-31-9201-31-9201-30-92

01-30-9201-31-9201-30-9201-30-9201-30-9201-30-92

01-30-9201-30-9201-30-9201-30-9201-30-92

01-31-9201-31-9201-31-9201-31-9202-03-9202-03-9201-31-9202-03-9202-03-92

Time

110513301425143008000800

0835084510301230085513000845

13200835133008251350142509051430

150015150915094510301000

104008001130124513001315

13501415143515001530

124012101150112008401300111009001315

Discharge (ffts)

0.79.73.007.48.002.02

.005

.01

.82

.17

.007<.001<.001

.005

.006

.005

.003

.44

.04

.03

.27

.10

.09

.08

.05

.06

.04

.02

.01

.04

.03

.003

.10

.01

.004

.08

.02

.009

.06

.003

.10

.031

.04

.04

.02

.03

.03

Specific conductance

(nS/cm)

802772971795

1,2401,250

849658810

1,1601,140

775772

953960

1,2401,230

8391,0001,000

831

918875910902

1,030773

584745972978982768

753754769778848

9161,020

9601,000

958907891664653

PH (units)

8.08.18.0~7.67.7

7.88.18.17.88.08.48.2

8.08.28.28.38.47.88.28.4

8.18.08.58.38.38.0

7.87.67.88.17.98.3

7.07.08.57.98.1

8.58.28.28.08.28.17.58.08.5

Total Total Temperature chlorine8 copper8

(°C) (mg/L) (mg/L)

2.0 <0.10 <0.12.0 <.10 <.l

10.0 <.10 <.l.10 <.l

10.5 <.10 <.l8.5 <10 <.l

6.5 <.10 <.l6.5 <.10 <.l2.5 <.10 <.l9.5 <.10 <.l7.5 <10 <.l9.0 .15 <.l5.5 <.10 <.l

3.0 <10 <.l2.5 <.10 <.l

10.5 <10 <.l4.5 <.10 <.l8.0 <.10 <.l9.0 <.10 <.l8.5 <.10 <.l8.5 <10 <.l

8.0 <.10 <.l5.5 <.10 <.l4.5 <10 <.l3.5 <.10 <.l8.5 <.10 <.l4.0 <.10 <.l

4.5 <.10 <.l10.0 .15 <.l5.0 <.10 <.l5.0 .10 <.l5.5 <.10 <.l6.0 <.10 <.l

18.0 .30 <.l10.0 <.10 <.l6.5 <.10 <.l9.0 <.10 <.l8.5 <.10 <.l

13.5 <.10 <.l11.5 .15 <16.0 <.10 <.l

10.0 <.10 <.l11.0 <.10 <.l11.5 <.10 <.l7.0 <10 <.l8.0 .10 <.l

10.0 <.10 <.l

Total detergents8

(mg/L)

<0.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<05

<.05<.05<.05<.05<.05<.05<.05<.05<.05

Total phenols8

(mg/L)

<0.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02<.02<.02<.02

38

Table 10. Values of selected physical properties and constituent concentrations of water samples collected during base- flow conditions-Continued

Site number(fig. 2)

A100A101A102A103A104

A110

BlB2B3B4

B5B6B7B8B9

BIOBllB12

BR1Cl

C2C3C4C5C6

C7C8C9

CIOCll

C20FP1FP2FP3FP4

FP5LB1LB2LB3LB4

Date

01-31-9201-31-9201-31-9201-31-9201-31-9202-03-9202-03-92

02-03-9202-03-9210-17-9110-17-9110-17-9110-17-91

10-17-9110-17-9110-17-9110-17-9110-17-91

10-17-9110-17-9110-17-9110-18-9102-03-9210-21-91

10-21-9110-21-9110-21-9110-21-9110-21-9110-22-91

10-22-9110-22-9110-22-9110-23-9110-22-9110-22-91

10-23-9102-07-9202-04-9202-04-9202-04-92

02-06-9202-07-9202-11-9202-11-9202-11-92

Time

0855091009250950101509301330

091513150800085009301005

10251040111011251140

120013001330080014450840

092010201055

13250800

091209501050134512251325

09451000095010001030

11000915090010201055

Discharge (ft3/s)

0.03.005.003.02.02.02.02

.004

.004

.18

.10

.24

.16

.03

.006

.02

.03

.01

.02

.02

.04

.01

.08

.11

.12<.001

.04

.01

.01

.05

.05

.05

.04

.04

.04

<.001.14

<.001.10.13

.006

.060

.02

.02

.04

Specific conductance

(jiS/cm)

6701,4401,1201,020

966931911

1,3901,350

696778685828

867894637878840

6801,010

892895

1,200898

836920738

1,1401,3002,480

1,040886822720730560

782600430452457

498625684691684

PH (units)

7.57.98.17.88.38.28.2

8.28.37.88.07.97.6

7.97.88.37.98.1

7.67.47.3~8.17.9

7.77.7 7.77.6

7.67.97.97.47.47.8

7.88.17.98.07.9

7.88.07.87.97.7

Total Total Temperature chlorine8 copper9

(°C) (mg/L) (mg/L)

7.5 <0.10 <0.14.0 <.10 <.l6.0 <.10 <.l5.0 <.10 <.l5.5 <.10 <.l7.0 <.10 <.l7.0 .20 <.l

7.0 <.10 <.l8.0 <.10 <.l

12.0 <.10 <.l11.5 <.10 <.l11.5 <.10 <.l13.0 .30 <.l

12.5 <.10 <.l13.5 <.10 <.l14.5 <.10 <.l17.0 <.10 <.l17.0 <.10 <.l

16.0 <.10 <.l17.5 .20 <.l17.5 <.10 <.l

<.l8.5 <.10 <.l7.5 <.10 <.l

8.0 <.10 <.l9.0 <.10 <.l

<.10 <.l13.0 <.10 <.l17.0 <.10 <.l

<.l

13.0 .10 <.l12.0 <.10 <.l16.0 <.10 <.l22.5 <.10 <.l14.0 .20 <.l11.0 .30 <.l

16.0 <.10 <.l.5 .15 <.l

4.0 <.10 <.l3.5 <.10 <.l4.0 <.10 <.l

6.0 <.10 <.l.5 <.10 <.l

3.0 <.10 <.l3.0 <.10 <.l5.5 <.10 <.l

Total detergents8

(mg/L)

<0.05<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

Total phenols8

(mg/L)

<0.02<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

39

Table 10. Values of selected physical properties and constituent concentrations of water samples collected during base- flow conditions-Continued

Site number (fig- 2)

LB5

LB6

MlM2M3

M4M5M6M7M8

M9M10MilM12M13

M14M15M16M17M18

M19

M20M21M22M23

M24M25

M26

M27

Rl

R2R3R4R5R6

R8R9RIORllR12

Date

02-03-9202-03-9202-03-9202-03-9201-21-9201-21-9201-21-92

01-21-9201-21-9201-21-9201-21-9201-21-92

01-21-9201-24-9201-24-9201-24-9201-24-92

01-27-9201-27-9201-27-9201-27-9201-27-92

01-27-9201-28-9201-28-9201-28-9201-28-9201-28-9201-29-92

01-29-9201-29-9201-30-9201-28-9201-30-9201-29-9201-30-9210-08-91

10-08-9110-08-9110-08-9110-08-9110-08-91

10-09-9110-09-9110-09-9110-09-9110-09-91

Time

1100153011121530100010301100

11201300133014201430

15450735080008451045

0945112513301415

--

1510081508430913101510450820

08000845081509300830094509001020

10301050111011301310

08500900101010101140

Discharge (tf/s)

0.001.001.001.001.43.14.15

.09

.03

.03

.003

.02

.06

.001

.03

.01

.04

.06

.001

.01

.13

.05

.01

.01

.01

.005

.03

.003

.002

.001

.004

.004

.001<.01

.01

.0110.1

.14

.02

.10

.19

.05

.03

.16

.02

.05

Specific conductance

(nS/cm)

1,2301,240

902904825796896

9261,0301,1001,3101,480

9071,200

770722640

1,0401,130

883865

1,030

1,000981

1,040886

1,3201,1301,130

1,0301,3601,3801,2501,3201,2601,290

901

489829908528660

1,090982662

1,070650

PH (units)

8.28.28.58.58.48.58.1

8.38.48.37.78.2

8.37.47.87.47.6

7.77.77.58.38.4

7.88.08.08.47.98.28.0

7.17.67.77.77.78.08.06.8

6.97.17.37.37.3

6.96.87.67.87.4

Total Temperature chlorine8

(°C) (mg/L)

6.5 <0.107.0 <.107.0 <.107.0 .501.5 <.102.0 .103.5 <.10

.5 <.101.5 <.103.5 <.105.5 <.10

.5 <.10

2.5 <.10.5 <.10

2.0 <.10.5 <.10

3.0 <.10

8.5 <.105.5 <.107.0 <.105.0 <.107.5 <.10

8.0 <102.0 .702.0 <.103.0 <.102.0 <.104.5 <.105.0 <.10

7.5 <.108.5 <.10

10.0 <.104.5 <.105.5 <.107.5 <.107.5 <.10

21.0 .10

13.5 <.1011.5 .2024.0 <.1015.0 .1015.0 .20

14.5 <.1014.5 <.1015.0 <.1016.0 <.1016.0 <.10

Total Total copper8 detergents8 (mg/L) (mg/L)

<0.1 <0.05<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <.05<.l <.05

Total phenols8

(mg/L)

<0.02<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<,02

<.02<.02<.02<.02<.02<.02<02

<.02<.02<.02<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

40

Table 10. Values of selected physical properties and constituent concentrations of water samples collected during base- flow conditions-Continued

Site number(fig- 2)

R13R14R15R16R17

R18R19R20

R21R22

R23

R24

R25R26R27

R50R51R52R53R54

R60

R61

SIS2S3

S4S5S6S7S8

S9S10Sll

S12S13

S14S15S16S17

S18

Date

10-09-9110-09-9110-10-9110-10-9110-10-91

10-10-9110-10-9110-10-9110-11-9110-10-9110-10-91

10-10-9110-11-9110-10-9110-11-9110-11-9110-11-9110-11-91

10-16-9110-16-9110-16-9110-16-9110-16-91

02-27-9202-27-9202-27-9202-27-9201-15-9201-15-9201-15-92

01-15-9201-15-9201-16-9201-16-9201-16-92

01-16-9201-16-9201-16-9201-17-9201-16-9201-17-92

01-17-9201-17-9201-17-9201-22-9201-17-9201-21-9201-17-92

Time

13451450083010001040

111012531245101013351350

1410105014451035094509451125

1220123512451415

~

0934151609101454124512450830

13401400083009201000

103011001120084512000915

1020110011450830123008301300

Discharge (fAs)

0.02.05.03.67.01

.02

.09

.04

.04

.09

.008

.04

.03

.03

.03

.007

.01

.01

.003

.04

.03

.03

.03

.024

.02

.003

.009

.20

.04

.19

.001

.001<20<01<10

<.10<.20<.01

.009<.001

.23

.06

.04

.007

.01

.01

.01

.006

Specific conductance

(nS/cm)

618637863788550

788932665546881847

771728

1,5601,560

875772704

776830825922875

533537773829596694574

1,0801,2601,2301,280

670

642

853858

1,010674

698979854507550534

1,040

pH (units)

7.17.67.67.48.5

8.08.08.08.58.07.7

7.97.47.37.37.98.07.7

8.17.97.97.98.1

7.67.69.88.76.87.36.7

6.87.08.18.08.0

7.68.27.87.57.58.2

8.17.68.09.29.39.48.1

Temperature

17.521.513.513.516.0

15.014.517.518.516.015.5

19.517.517.018.013.513.519.0

12.515.015.012.512.0

18.519.510.011.02.0

.53.0

.53.01.0

.51.5

3.52.07.07.03.07.5

12.59.01.5

12.011.010.54.0

Total chlorine8

(mg/L)

<0.10.10

<10<.10

.15

.30<10

.30

.80<10<10

.10<10

.10<10<10<10

.20

<10<10<10<10<10

.15

.10

.10

.10

.10<.10

.10

<10<.10<10<10<10

<10<.10

.15

.15<10<10

.40<.10

.20

.20

.50

.50<10

Total Total copper8 detergents8 (mg/L) (mg/L)

<0.1 <0.05<1 <.05<.l <.05<.l <.05<.l <05

<.l <05<.l <05<.l <.05<.l <05<.l <05<.l <05

<1 <05<.l <05<.l <05<.l <05<.l <05<.l <05<.l <.05

<.l <.05<.l <.05<.l <.05<.l <05<.l <05

<.l <05<.l <.05<.l <05<1 <.05<1 <.05<.l <.05<.l <05

<. <.05<. <.05<. <.05< <.05<. <.05

<. <05<. <.05<1 <.05<1 <.05<.l <.05<1 <.05

<.l <.05<.l <.05<.l <.05<1 <05<1 <05<1 <.05<1 <.05

Total phenols8

(mg/L)

<0.02<.02<02<.02<.02

<.02<.02<02<.02<.02<.02

<.02<02<.02<.02<.02<.02<02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<02<.02<.02<.02

<.02<.02<.02<.02<.02<.02<.02

41

Table 10. Values of selected physical properties and constituent concentrations of water samples collected during base- flow conditions-Continued

Site number(fig. 2)

S19S20SB1SB2SB3

SB4SB5SB6SB7SB8

SB9SB 10SB11SB12SB13

SB15SB16SB17SB18SB19

SB20SB21SB22SB23SB24

SB25SB26SB27WFP1WFP2

WFP3WFP4WFP5WFP6WFP7

WFP8WFP9WFP10

Date

01-17-9201-21-9210-08-9110-08-9110-08-91

10-08-9110-08-9110-08-9110-08-9110-09-91

10-09-9110-09-9110-09-9110-09-9110-10-91

10-10-9110-10-9110-11-9110-11-9110-11-91

10-11-9110-11-9110-15-9110-15-9110-15-91

10-15-9110-15-9110-16-9102-05-9202-05-92

02-05-9202-05-9202-05-9202-06-9202-06-92

02-06-9202-06-9202-06-92

Time

13300915103011301210

12451345141514350900

11401300140014450955

14151320085009301010

10451120093310301110

12151435092008550920

10101030104508100845

092010001020

Discharge (fAs)

0.02.15.38.40.08

.10

.08

.05

.02

.07

.33

.24

.15

.38<.03

.07

.02

.14

.08

.02

.06

.04

.02

.006

.02

.08

.01

.02

.161.02

.29

.15

.26

.03

.23

.10

.05

.08

Specific conductance

(nS/cm)

1,210527864772667

671686694750711

703734821667506

1,250546858

1,160576

1,2201,7302,530

9121,540

1,6001,0401,080

325693

1,000513531922

1,320

616532413

PH (units)

7.79.27.87.88.1

8.27.97.98.18.2

7.67.77.97.78.8

7.87.67.57.98.0

8.08.38.08.18.2

8.68.08.18.78.2

8.38.18.47.88.2

7.98.27.4

Total Total Temperature chlorine8 copper8

(°C) (mg/L) (mg/L)

11.0 <0.10 <0.115.5 .90 <.l12.0 <.10 <.l12.5 <.10 <.l14.0 <.10 <.l

14.5 <.10 <.l16.5 .10 <.l18.0 <.10 <.l17.0 .10 <.l13.5 <.10 <.l

15.5 <.10 <.l15.0 <.10 <.l16.0 <.10 <.l17.5 <.10 <.l15.5 <.10 <.l

16.5 <.10 <.l19.5 <.10 <.l13.0 <.10 <.l13.5 -- <.l13.5 <.10 <.l

14.5 <.10 <.l14.0 <.10 <.l12.0 <.10 <.l13.0 <.10 <.l14.0 <.10 <.l

13.5 <.10 <.l14.0 <.10 <.l10.0 <.10 <.l

1.5 <.10 <.l.5 <.10 <.l

.5 <.10 <.l1.0 <.10 <.l1.0 <.10 <.l1.0 <.10 <.l1.5 <.10 <.l

1.5 <.10 <.l1.5 <.10 <.l6.5 <.10 <.l

Total detergents8

(mg/L)

0.30<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05<.05<.05

<.05<.05<.05

Total phenols8

(mg/L)

<0.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02<.02<.02

<.02<.02<.02

a Concentrations are considered semi-quantitative.

42

Tabl

e 11

. R

ainf

all a

nd d

isch

arge

cha

ract

eris

tics

for t

hree

sto

rms

at e

ach

of th

e st

orm

wat

er-r

unof

f sam

plin

g si

tes

Site

Stor

m d

urat

ion

num

ber

Beg

inni

ng r

ainf

all

(fig.

1)

Dat

e

1 09

-02-

9210

-07-

9202

-11-

93

2 07

-22-

9209

-17-

9212

-09-

92

3 07

-09-

9208

-18-

9211

-18-

92

4 08

-07-

9209

-29-

9202

-11-

93

5 07

-30-

9210

-07-

9212

-09-

92

Tim

e

0540

2115

0055

0530

0530

0000

2235

1900

0540

0520

0700

0055

0230

2120

0000

End

of ru

noff

D

ate

Tim

e

09-0

2-92

10-0

8-92

02-1

1-93

07-2

2-92

09-1

7-92

12-0

9-92

07-1

0-92

08-1

8-92

11-1

8-92

08-0

7-92

08-0

7-92

02-1

1-93

07-3

0-92

10-0

8-92

12-0

9-92

0725

0220

0545

0850

1100

0630

0505

2010

1014

0820

1120

0525

0510

0120

0648

Rai

nfal

l to

tal

(inch

es)

b0.3

9b.

52b.

33

e.51

d.42

c.25

b.93

c.32

c.22

b.67

b.41

b.33

d.71

d.98

d.25

Tota

l run

off

volu

me

(inch

es)

0.04 .0

9.0

2

.04

.06

.03

.61

.09

.11

.19

.07

.04

.12

.19

.10

Rain

fall-

ru

noff

co

effic

ient

0.10 .1

7.0

6

.08

.14

.12

.66

.28

.50

.28

.17

.12

.17

.19

.40

Max

imum

20

-min

ute

tota

l (in

ches

)

0.39 .1

9.0

7

...0

9.0

4

.65

.18

.05

.47

.12

.07

.45

.32

.04

Peak

flow

(c

ubic

feet

pe

r sec

ond)

27.6

22.8 2.2

6.8

5.8

1.2

258 32 5.

6

111 16

.0 3.7

4.6

5.2 .9

Rain

fall

dura

tion

(min

utes

)

20 210

230

105

295

324

250 35 190

135

225

230 90 200

324

Run

off

dura

tion

(min

utes

)

90 275

220

195

320

336

245 55 270

180

258

260

145

240

403

Tim

e fr

om

star

t of s

torm

ra

infa

ll to

m

axim

um

stre

amflo

w

(min

utes

)

25 208

110 11

243

149 10 23 97 10 11 170 33 147

145

Tim

e si

nce

prev

ious

st

orm

8 (h

ours

)

159

274

^0

0

150

195

315 59 274

144

114

127

d700 81 27

431

5

a Min

imum

sto

rm d

epth

is 0

.10

inch

.b R

ainf

all m

easu

red

from

rai

n ga

ge R

N 1

(ta

ble

1).

c Rai

nfal

l mea

sure

d fr

om r

ain

gage

RN

2 (t

able

1).

d Pre

viou

s pr

ecip

itatio

n w

as 9

inch

es o

f sno

w.

6 Tot

al r

ainf

all m

easu

red

from

a n

on-r

ecor

ding

gag

e on

site

.

Tabl

e 12

. Val

ues

of s

elec

ted

phys

ical

pro

perti

es a

nd c

onst

ituen

t con

cent

ratio

ns fr

om fi

rst-f

lush

sam

ples

col

lect

ed a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s

[Q, d

isch

arge

; fi?

/s, c

ubic

feet

per

sec

ond;

°C,

deg

rees

Cel

sius

; col

/100

mL,

col

onie

s per

100

mill

ilite

rs; m

g/L,

mill

igra

ms

per l

iter,

ug/L

, mic

rogr

ams

per l

iter,

K, n

on-id

eal c

olon

y co

unt;

<, le

ss th

an; d

is­

char

ge, t

empe

ratu

re, b

acte

ria, a

nd to

tal c

hlor

ine

wer

e de

term

ined

by

the

U.S

. Geo

logi

cal S

urve

y, In

depe

nden

ce, M

isso

uri;

tota

l cya

nide

was

det

erm

ined

by

Ense

co R

ocky

Mou

ntai

n A

naly

tical

Lab

orat

ory,

A

rvad

a, C

olor

ado;

tota

l phe

nols

and

oil

and

grea

se w

ere

dete

rmin

ed b

y th

e U

.S. G

eolo

gica

l Sur

vey,

Arv

ada,

Col

orad

o]

Site

nu

mbe

r (fi

g. 1

) D

ate

1 09

-02-

9209

-02-

9209

-02-

9210

-07-

9210

-07-

92

10-0

7-92

10-0

8-92

02-1

1-93

02-1

1-93

2 07

-22-

9207

-22-

9209

-17-

9209

-17-

9209

-17-

92

09-1

7-92

12-0

9-92

3 07

-09-

9208

-18-

9208

-18-

9208

-18-

9211

-18-

92

4 08

-07-

9208

-07-

9209

-26-

9209

-26-

9209

-26-

92

02-1

1-93

02-1

1-93

Tim

e

0558

0610

0700

2214

2254

2334

0034

0250

0417

0543

0712

0600

0620

0641

0936

0118

2244

1917

1924

1935

0715

0526

0552

0710

0807

0952

0250

0336

Tem

pera

ture

, Q

ai

r (f

f/s)

(°C

)

4.0

34.0 2.6

4.6

15.0

3.6

15.0

3.0

15.0

17.4

14

.02.

202.

20

6.2 .9

0.8

02.

001.

30

4.40 .4

0 4.

0

260 10

.419

.010

.5 5.2

5.0

70 10.5

19.0 2.9

5.1

2.4

2.2

Tem

pera

ture

, Co

lifor

m,

wat

er

feca

l, (°

C)

(col

/100

mL)

_ - ~ 17.5

17.0

17.0

16.0 8.5

20.5

~ ~ - ~ __ 6.0

__ 26.5

~ - 7.5

__ ~ - ~ 9.0

~

290,

000

K15

7.00

090

,000

62,7

0084

,000

37,3

00K

143.

000

5,67

05,

600

K20

,000

Kl 9

,000

147,

000

77,5

0062

,000

78,0

006,

600 _

K21

9.00

019

,200

7,94

010

0,00

0

13,0

0023

,200

11,0

00K

14.2

00K

13.8

00

K1.

600

K50

0

Stre

ptoc

occi

, fe

cal

(col

/100

mL)

218,

000

500,

000

108,

000

340,

000

92,7

00

108,

000

76,7

0012

,400

6,07

0

K10

.000

K27

.000

140,

000

99,1

0012

3,00

0

65,4

00K

1.90

0 _K

233,

000

58,0

0036

,000

55,0

00

28,2

0057

,000

18,8

0019

,400

K21

,200

4,40

02,

300

Chl

orin

e,

Oil a

nd

tota

l, gr

ease

, H

ach

Cya

nide

, Ph

enol

s,

tota

l m

etho

d to

tal

tota

l re

cove

rabl

e (m

g/L)

(m

g/L)

(u

g/L)

(m

g/L)

<0.0

10

2__ _. 0.

15

<.01

0 1

~ __ <.10

~ <.10

<1

0.0

4.. <.

10

<.01

0 3

~ _. <.10

<.

010

7

<10.

0 <1

<.10

<.

010

.. <.

010

4

<10.

0 6

...2

0 <.

010

4__

1..

1 ~ ~ <1 ~ ~ 16 - 4 ~ __ 3 <1 - ~ ~ 3 <1 - 7 ~ ~ <1 ~

Tab

le 1

2. V

alue

s of

sel

ecte

d ph

ysic

al p

rope

rtie

s an

d co

nstit

uent

con

cent

ratio

ns fr

om f

irst-

flush

sam

ples

col

lect

ed a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s C

on

tin­

ued S

itenu

mbe

r(f

lg-1

)

5

Dat

e

07-3

0-92

07-3

0-92

07-3

0-92

10-0

7-92

10-0

7-92

12-0

9-92

12-0

9-92

12-0

9-92

Tim

e

0250

0350

0455

2128

2210

0212

0402

0600

Tem

pera

ture

,Q

ai

r(t

f/s)

(°

C)

2.0

1.60 .31

3.1 .6

8

.77

4.0

.61

.50

Tem

pera

ture

,w

ater

(°C

)

23.0

~ 17.5

3.0

-

Col

iform

,fe

cal,

(col

/100

mL)

K9.0

00

22,0

00K

l 2,0

00K

1.2

00

K3.8

00

K10

6,00

020

,000

4,10

0

Str

epto

cocc

i,fe

cal

(col

/100

mL)

K15.0

00

K258,0

00

K340,0

00

92,0

0048

,700

78,0

004,

870

2,50

0

Chl

orin

e,to

tal,

Hac

h C

yani

de,

met

hod

tota

l(m

g/L)

(m

g/L)

<10

.0._

<.0

10

<.0

10-_

Ph

en

ols

,to

tal

(pg/

L) 3 - - 2 ~ 2 » --

Oil

an

dgr

ease

,to

tal

reco

vera

ble

(mg/

L)

2 ~ - <1 3 -- ~

Tabl

e 13

. Val

ues

of s

elec

ted

phys

ical

pro

perti

es a

nd c

onst

ituen

t con

cent

ratio

ns in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s

[SC

, spe

cifi

c co

nduc

tanc

e; u

S/cm

, mic

rose

imen

s pe

r cen

timet

er a

t 25

degr

ees

Cel

sius

; pH

, in

stan

dard

uni

ts; C

OD

, che

mic

al o

xyge

n de

man

d; i

ng/L

, mill

igra

ms

per l

iter,

BO

D, 5

-day

bio

chem

ical

oxy

gen

dem

and;

Ca"

1"2, d

isso

lved

cal

cium

; M

g"1"2

, dis

solv

ed m

agne

sium

; Na+

1, d

isso

lved

sod

ium

; K

+1, d

isso

lved

pot

assi

um; H

CO

s"1,

bica

rbon

ate;

CO

3~2,

carb

onat

e; A

lk, a

lkal

inity

, inc

rem

enta

l titr

atio

n, to

tal;

CaC

O3,

cal

cium

car

bona

te; A

lk (E

P), a

lkal

inity

, end

poi

nt ti

trat

ion

to p

H 4

.5, t

otal

; Alk

(L);

alka

linity

, lab

orat

ory;

H, h

ardn

ess,

tota

l; SO

4"2,

sul

fate

, dis

solv

ed; C

T1,

chlo

ride

, dis

solv

ed; D

S, d

isso

lved

sol

­ id

s; °

C, d

egre

es C

elsi

us; S

S, to

tal s

uspe

nded

sol

ids;

NO

2"2,

nitr

ite a

s ni

trog

en;

NO

2 +

NO

3, ni

trite

plu

s ni

trat

e as

nitr

ogen

; NH

3+, a

mm

onia

as

nitr

ogen

; N

H3+

+ O

N, a

mm

onia

plu

s or

gani

c ni

trog

en, t

otal

as

nitr

ogen

; ON

, org

anic

nitr

ogen

, tot

al; P

, pho

spho

rus;

TO

C, t

otal

org

anic

car

bon;

CN

"1, c

yani

de; b

ioch

emic

al o

xyge

n de

man

d an

alyz

ed b

y th

e C

ity o

f Ind

epen

denc

e W

ater

Pol

lutio

n C

ontr

ol; >

, gre

ater

th

an; <

, les

s th

an]

Site

numb

er

(fig.

1)

Date

1 09-0

2-92

10-07-92

02-1

1-93

2 07-2

2-92

09-1

7-92

12-09-92

3 07-0

9-92

08-1

8-92

11-18-92

4 08-0

7-92

09-2

6-92

02-1

1-93

5 07-3

0-92

10-0

7-92

12-09-92

Time

0558

2214

0245

0543

0600

0118

2244

1917

0715

0526

0710

0245

0250

2128

0212

Ending

date

09-0

2-92

10-08-92

02-1

1-93

07-22-92

09-17-92

12-09-92

07-1

0-92

08-1

8-92

11-18-92

08-0

7-92

09-26-92

02-1

1-93

07-3

0-92

10-07-92

12-09-92

Ending

time

0637

0148

0517

0822

0936

0608

0510

1935

0912

0756

1101

0445

0455

2347

0600

sc,

onsfte"

(uS/

cm)

158

213

665

147

167

615 68 148 ~

214

296

246

14,100

8,01

026

,500

SC,

laboratory

(uS/

cm)

187

227

680

160

187

858 78 191

140

241

310

311

14,600

8,03

024

,000

COD

(mg/L)

1,20

014

013

0

190 96 480 36

1,60

015

0 56 57 210

140

270 69

BODb

(mg/L)

>650 63 34

>46 17 30 13

>220 72 15 44

<16 93 100

Ca+2

(mg/L) 18 27 73 20 23 48 8.1 21 18 28 41 24 96 53 140

Mg+2

(m

g/L)

1.7

2.8

8.1

1.7

2.2

5.8 .5 1.1

1.0

2.5

3.5

1.5

3.4

2.5

6.2

Na+1

(mg/L) 5.

17.3

50 5.1

6.0

110 1.

44.8

3.6

8.3

13 19

2,900

1,60

05,800

Tabl

e 13

. Val

ues

of s

elec

ted

phys

ical

pro

perti

es a

nd c

onst

ituen

t con

cent

ratio

ns in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rm w

ater

-run

off s

ampl

ing

site

s-

Con

tinue

d

Site

nu

mbe

r K*

1 (fi

g. 1

) (m

g/L)

1 3.

24.

93.

5

2 1.

82.

12.

5

3 1.

53.

11.

2

4 2.

52.

1 1.8

5 2.

9 .4 3.6

HC

03-1

(mg/

L) 81 60 180 59 68 130 32 46 - 77 86 90 250 38 94

co3-2

(mg/

L)

0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 1

Alk

(m

g/L

as

CaC

Og)

66 49 150 48 56 110 27 38 ~ 63 71 74 200 31 80

Alk

(EP

) (m

g/L

as

CaC

O3)

83 49 150 49 58 100 29 38 - 63 71 74 180 31 80

Alk

(L)

(mg/

L as

C

aCO

a)

140 70 130 70 68 110 49 77 57 79 91 89 60 110

140

H (m

g/L

as

CaC

Oa)

52 79 220 57 67 140 22 57 49 80 120 66 250

140

380

so4-2

(mg/

L) 13 22 77 13 11 27 3.8 19 8.1 23 29 21 12 110

420

cr1

(mg/

L)

7.7

12 81 8.6

11 160 1.

95.

44.

8

18 22 26

4,50

02,

100

8,10

0

DS,

re

sidu

e at

18

0 °C

(m

g/L)

101

143

381 99 130

458 34 125 75 130

175

131

8,50

04,

510

14,7

00

ss,

resi

due

at 1

05 °

C (m

g/L)

1,18

045

613

0

202

153

107

221 90 38 548 86 112

1,20

035

261

2

DS,

su

m o

f co

nstit

uent

s (m

g/L) 89 106

385 79 89 419 33 77 71 120

153

145

7,64

03,

880

14,5

00

N02

'2 to

tal'

(mg/

L)

<0.0

1<.

01- <.

01<.

01<.

01

<.01

<.01

<.01

<.01

<.01

~ <.01 .0

2.0

1

Tabl

e 13

. Val

ues

of s

elec

ted

phys

ical

pro

perti

es a

nd c

onst

ituen

t con

cent

ratio

ns in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s-

Con

tinue

d

Site

N

O2,

NO

2 +

NO

3, nu

mbe

r di

ssol

ved

tota

l (fi

g 1)

(m

g/L)

(m

g/L)

1 --

<0

.05

.80

<0.0

1

2 -

.59

.75

.58

3 --

.3

81.

0 .90

4 -

.94

1.3

.01

5 -

.50

.42

.43

N02

+ N

03,

diss

olve

d (m

g/L)

0.81

_ - _ - _ 1.5

_ -

tota

l (m

g/L)

<0.0

1.2

9~

.26

.15

.34

.41

1.0 .43

.34

.29

-

.33

.37

.40

NH

3+,

diss

olve

d NH

3+ +

ON

(m

g/L)

(m

g/L)

3.3

1.2

0.81

1.

7 .6 .6 1.4

1.4

2.9

1.1

1.4 .7

.51

1.5 .6 .9 .2

ON

(m

g/L)

3.3 .9

-

.3 .4 1.1

1.0

1.9 .7 1.1 .4

-

.3 .5<.

2

P,

tota

l (m

g/L)

1.3 .6

0.2

5

.27

.33

.31

.29

.49

.18

.60

.20

.28

.65

.50

.12

P,

diss

olve

d (m

g/L)

<0.0

1.3

3.0

6

.11

.16

.10

.06

.42

.03

.15

.09

.08

.03

.10

<01

TOG

(m

g/L)

250 39 26 66 28 26 12 410 39 24 14 30 22 68 -

CN

'1,

tota

l (m

g/L)

<0.0

1<.

01<.

01

<.01

<.01

<.01

<.01

<.01

<.01

<.01

<01

<.01 .0

1<.

01 .01

a Ana

lyze

d by

the

U.S

. Geo

logi

cal S

urve

y, I

ndep

ende

nce,

Mis

sour

i.b A

naly

zed

by d

ie C

ity o

f Ind

epen

denc

e W

ater

Pol

lutio

n C

ontr

ol, I

ndep

ende

nce,

Mis

sour

i.

Tabl

e 14

. Con

cent

ratio

ns o

f tra

ce e

lem

ents

in fl

ow-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s

[Con

stitu

ent c

once

ntra

tions

ana

lyze

d by

the

U.S

. Geo

logi

cal S

urve

y, A

rvad

a, C

olor

ado,

unl

ess

othe

rwis

e sp

ecifi

ed; c

once

ntra

tions

are

who

le-w

ater

reco

vera

ble,

unl

ess

indi

cate

d; c

once

ntra

tions

are

in

mic

rogr

ams

per l

iter;

Sb, a

ntim

ony,

tota

l; A

s, a

rsen

ic, t

otal

; Be,

ber

ylliu

m; C

d, c

adm

ium

; Cr,

chro

miu

m; C

u, c

oppe

r, Pb

, lea

d; H

g, m

ercu

ry; N

i, ni

ckel

; Se,

sel

eniu

m, t

otal

; Ag,

silv

er, T

l, th

alliu

m, t

otal

; Zn

, zin

c; <

, les

s tha

n; ,

no d

ata]

Site

number

(flg.

1)

1 2 3 4 5

Date

09-02-92

10-0

7-92

02-1

1-93

07-22-92

09-17-92

12-09-92

07-09-92

08-18-92

11-1

8-92

08-07-92

09-26-92

02-1

1-93

07-30-92

10-07-92

12-09-92

Time

0558

2214

0245

0543

0600

0118

2244

1917

0715

0526

0710

0245

0250

2128

0212

Endi

ng

date

09-02-92

10-0

8-92

02-11-93

07-22-92

09-17-92

12-0

9-92

07-10-92

08-18-92

11-1

8-92

08-0

7-92

09-2

6-92

02-11-93

07-30-92

10-07-92

12-09-92

Endi

ng

time

0637

0148

0517

0822

0936

0608

0510

1935

0912

0756

1101

0445

0455

2347

0600

Sba,

tota

l

<20.

0<1

0.0

<20.

0

<10.

0<1

0.0

<10.

0

<10.

0<1

0.0

<20.

0

<10.

0<1

0.0

<20.

0

<10.

0<1

0.0

<10.

0

As,

total

Be

10

<10

2 <10

3 <10

2 <10

3 <10

2 <10

2 <10

1 <10

1 <10

4 <10

3 <10

2 <10

6 <10

2 <10

3 <10

Cdb

Cdc

5 <10

1 <10

3 <10

1 <10

1 <10

4 <10

1 <10

1 <10

<1

<10

2<1

<10

2 <10

40

6015

3022

60

Cr" 99 6 21 <1 5 8 17 9 ~ 9 2 24 23 14 41

Cr*

40 20 <10

<10

<10 10 20 40 <10 _ 20 10 40 20 20

Cub

95 52 19 10 9 8 18 19 9

130 31 17 45 22 24

§Ta

ble

14. C

once

ntra

tions

of t

race

ele

men

ts in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s-C

ontin

ued

Site

number

(fig. 1)

Cu

c

1 130 50 20

2 10 10

<10

3 20 20 <10

430 20

5 60 30 50

Pb

260 60 59 42 41 31 86 39 20 100 26 110

800

290

500

Pbc

Hg

300

<0.1

<100

<.l

100

<.l

<100

<.l

<100

<.l

<100

<.l

<100

<.l

<100

<.l

<100

<.l .2

<100

<.l

100

<.l

800

.340

0 <.

l80

0 .1

Ni 32 10 7 7 8 6 7 6 4 12 3 7 37 19 23

Nic

<100

<100

<100

<100

<100

<100

<100

<100

<100 _

<100

<100 100

<100 200

Se <! <2 <2 <2 <2 <2 <2 <1 <2 <! <2 <2 <5 <2 <2

Ag,a

TV

Ag

tota

l to

tal

<1

<1.0

<5

<1

<.5

<5<1

<.

5 <10

<1

<.5

<5<1

<.

5 <10

<1

<1.0

<10

<1

<1.0

<10

<1

<5.0

<10

<1

<.5

<5

<1

<.5

<512

<.

5 <10

<1

<.5

<10

<1

<1.0

<10

<1

<.5

<10

<1

<10.0

<50

Zn 860

250

240

280

200

110

230

290

110

410

140

300

6,200

2,200

3,600

a Ana

lyze

d by

Ens

eco

Roc

ky M

ount

ain

Ana

lytic

al L

abor

ator

y, A

rvad

a, C

olor

ada.

b

Ana

lyze

d us

ing

grap

hic

furn

ace

atom

ic a

bsor

ptio

n.

c Ana

lyze

d us

ing

dire

ct a

tom

ic a

bsor

ptio

n.

d A

naly

zed

usin

g di

rect

cur

rent

pla

sma.

Tabl

e 15

. Con

cent

ratio

ns o

f pes

ticid

es in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s

[Con

stitu

ent c

once

ntra

tions

ana

lyze

d by

the

U.S

. Geo

logi

cal S

urve

y, A

rvad

a, C

olor

ado;

con

stitu

ents

are

who

le-w

ater

reco

vera

ble,

unl

ess

indi

cate

d; c

once

ntra

tions

are

in m

icro

gram

s pe

r lite

r, B

HC

, ben

­ ze

ne h

exac

hlor

ide;

OD

D,

l,l-D

ichl

oro-

2,2-

bis(

p-C

hlor

ophe

nyl)

etha

ne; D

DE

, Dic

hlor

o di

phen

yl d

ichl

oroe

thyl

ene;

DD

T, D

ichl

oro

diph

enyl

tric

hlor

oeth

ane;

PC

B, p

olyc

hlor

inat

edbi

phen

yl;

<, le

ss th

an]

Site

nu

mbe

r (fi

g- 1

)

1 2 3 4 5

Dat

e

09-0

2-92

10-0

7-92

02-1

1-93

07-2

2-92

09-1

7-92

12-0

9-92

07-0

9-92

08-1

8-92

11-1

8-92

08-0

7-92

09-2

6-92

02-1

1-93

07-3

0-92

10-0

7-92

12-0

9-92

Tim

e

0558

2214

0245

0543

0600

0118

2244

1917

0715

0526

0710

0245

0250

2128

0212

Endi

ng

date

09-0

2-92

10-0

8-92

02-1

1-93

07-2

2-92

09-1

7-92

12-0

9-92

07-1

0-92

08-1

8-92

11-1

8-92

08-0

7-92

09-2

6-92

02-1

1-93

07-3

0-92

10-0

7-92

12-0

9-92

End

ing

time

0637

0148

0517

0822

0936

0608

0510

1935

0912

0756

1101

0445

0455

2347

0600

Ald

rin

<0.0

4<.

04<.

04

<.04

<.04

<.04

<.04

<.04

<.04

<.04

<.04

<.04

<.04

<.04

<.04

Alp

ha

BH

C

<0.0

3<.

03<.

03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

Bet

a BH

C

<0.0

3<.

03<.

03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

<.03

Del

ta

BH

C

<0.0

9<.

09<.

09

<.09

<.09

<.09

<.09

<.09

<.09

<.09

<.09

<.09

<.09

<.09

<.09

cis-

C

hlor

dane

C

hlor

dane

0.4

0.1

.2

<.l

.1

<.l

.1

<.l

<.l

<.l

.1 <

.l

<.l

<.<

.l <.

<.l

<.

<.l

<.

<.l

<.

<.l

<.l

<.l

<

.l<

.l <

.l<

.l <

.l

en

Tabl

e 15

. Con

cent

ratio

ns o

f pes

ticid

es in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s-C

ontin

ued

Site

nu

mbe

r tr

ans-

p,

p-

p,p-

(f

ig. 1

) C

hlor

dane

D

DD

D

DE

1 0.

1 <0

.1

<0.0

4<

.l <

.l <.

04<

.l <

.l <.

04

2 <

.l <

.l <.

04<

.l <

.l <.

04<

.l <

.l <.

04

3 <

.l <

.l <.

04<

.l <

.l

<.04

<.l

<.l

<.

04

4 <

.l <

.l <.

04<

.l <

.l <.

04<

.l .1

<.

04

5 <

.l

<.l

<.04

<.l

<.l

<.04

<.l

<

.l

<.04

P,P

- D

DT

Dia

zino

n

<0.1

1.

0<

.l

.2<

.l

<.l

<.l

.1

<.l

.1

<.l

<.l

<.l

.2

<.l

.1

<.l

<

.l

<.l

.2

<.l

<

.l.1

<

.l

<.l

<.l

<.l

<

.l<

.l

<.l

Die

ldri

n

0.05

<.02

<.02

<.02

<.02

<.02

<.02

<.02

<.02

<.02

<.02

<.02

<.02

<.02

<.02

Alp

ha-

Bet

a-

End

osul

fan

endo

sulf

an

endo

sulf

an

sulf

ate

<0.1

<0

.04

<0.6

<.l

<.04

<.

6<

.l <.

04

<.6

<.l

<.04

<.

6<

.l <.

04

<.6

<.l

<.04

<.

6

<.l

<.04

<.

6<

.l <.

04

<.6

<.l

<.04

<.

6

<.l

<.04

<.

6<

.l <.

04

<.6

<.l

<.04

<.

6

<.l

<.04

<.

6<

.l <.

04

<.6

<.l

<.

04

<.6

Endr

in

<0.0

6<.

06<.

06

<.06

<.06

<.06

<.06

<.06

<.06

<.06

<.06

<.06

<.06

<.06

<.06

Endr

in

alde

hyde

<0.2 <.2

<.2

<2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

Tabl

e 15

. Con

cent

ratio

ns o

f pes

ticid

es in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s C

ontin

ued

Site

nu

mbe

r(fi

g. 1)

1 2 3 4 5

Hep

tach

lor

Hep

tach

lor

epox

ide

<0.0

3 <0

.8<.

03

<.8

<.03

<

8

<.03

<.

8<.

03

<.8

<.03

<.

8

<.03

<.

8<.

03

<.8

<.03

<.

8

<.03

<.

8<.

03

<.8

<.03

<.

8

<.03

<.

8<.

03

<.8

<.03

<.

8

PCB,

PC

B,

Aro

clor

A

rocl

or

Llnd

ane

1016

12

21

<0.0

3 <0

.1

<1<.

03

<.l

<1<.

03

<.l

<1

<.03

<

.l

<1<.

03

<.l

<1<.

03

<.l

<1

<.03

<

.l <1

<.03

<

.l <1

<.03

<

.l <1

<.03

<

.l <1

<.03

<

.l <1

.03

<.l

<1

<.03

<

.l <1

<.03

<

.l <1

<.03

<

.l

<1

PCB,

PC

B,

PCB,

PC

B,

PCB,

A

rocl

or

Aro

clor

A

rocl

or

Aro

clor

A

rocl

or

1232

12

42

1248

12

54

1260

To

xaph

ene

<0.1

<0

.1

<0.1

<0

.1

<0.1

<2

<.l

<.l

<

.l

<.l

<

.l

<2<

.l <

.l

<.l

<

.l <

.l

<2

<.l

<

.l

<.l

<

.l

<.l

<2

<.l

<.l

<.l

<.l

<

.l

<2<

.l

<.l

<

.l <

.l

<.l

<2

<.l

<.l

<

.l

<.l

<.l

<2

<.l

<

.l

<.l

<

.l

<.l

<2

<.l

<.l

<.l

<

.l

<.l

<2

<.l

<.l

2.4

<.l

<

.l <2

<.l

<.l

<

.l

<.l

<

.l

<2<

.l <

.l <

.l <

.l

<.l

<2

<.l

<.l

<

.l <

.l

<.l

<2<

.l

<.l

<.l

<.l

<.l

<2

<.l

<.l

<

.l <

.l <

.l

<2

Tabl

e 16

. Con

cent

ratio

ns o

f vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes

[Con

stitu

ent c

once

ntra

tions

ana

lyze

d at

the

U.S

. Geo

logi

cal S

urve

y, A

rvad

a, C

olor

ado;

con

cent

ratio

ns a

re in

mic

rogr

ams p

er li

ter

and

are w

hole

-wat

er re

cove

rabl

e; <

, les

s th

an; -

-, no

dat

a]

Site

nu

mbe

r(fi

g-D

1 2 3 4 5

Dat

e

09-0

2-92

10-0

7-92

02-1

1-93

07-2

2-92

09-1

7-92

12-0

9-92

07-0

9-92

08-1

8-92

11-1

8-92

08-0

7-92

09-2

6-92

02-1

1-93

07-3

0-92

10-0

7-92

12-0

9-92

Tim

e

0558

2214

0245

0543

0600

0118

2244

1917

0715

0526

0710

0245

0250

2128

0212

Endi

ng

date

09-0

2-92

10-0

8-92

02-1

1-93

07-2

2-92

09-1

7-92

12-0

9-92

07-1

0-92

08-1

8-92

11-1

8-92

08-0

7-92

09-2

6-92

02-1

1-93

07-3

0-92

10-0

7-92

12-0

9-92

Endi

ng

time

0637

0148

0517

0822

0936

0608

0510

1935

0912

0756

1101

0445

0455

2347

0600

Di-

Bro

mo-

D

ibro

mo-

Te

tra-

Dic

hlor

o-

Bro

mo-

br

omo-

B

rom

o-

chlo

ro-

chlo

ro-

Chl

oro-

D

ichl

oro-

Tr

ichl

oro-

ch

loro

- br

omo-

m

etha

ne

met

hane

fo

rm

met

hane

m

etha

ne

met

hane

m

etha

ne

met

hane

m

etha

ne

met

hane

<0.2

<0

.2

<0.2

-

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2<.

2 <.

2 <.

2 -

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<2

<0.2

<.

2 <.

2 <.

2 <.

2 <.

2 <.

2

<.2

<.2

<.2

-

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

--

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

-

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

-

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

-

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

-

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

-

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

--

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

<.2

- <.

2 <.

2 <.

2 <.

2 <.

2 <.

2<.

2 <.

2 <.

2 --

<.

2 <.

2 .2

<.

2 <.

2 <.

2<.

2 <.

2 <.

2 --

<.

2 <.

2 <.

2 <.

2 <.

2 <.

2

Tabl

e 16

. Con

cent

ratio

ns o

f vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes

Con

tinue

d

TF

i:V

U^

T?

iA2=

Site

D

ichl

oro-

ch

loro

- 1,

2-

1,1-

1,

2-

1,1,

1-Tr

i- 1,

1,2-

Tri-

Tetr

a-

Tetr

a-

Tric

hlor

o-

1,1-

ci

s-1,

2-nu

mbe

r di

fluor

o-

fluor

o-

Chl

oro-

D

ibro

mo-

D

ichl

oro-

D

ichl

oro-

ch

loro

- ch

loro

- ch

loro

- ch

loro

- tr

ifluo

ro-

Chl

oro-

D

ichi

oro-

D

ichl

oro-

(fig.

1)

met

hane

m

etha

ne

etha

ne

etha

ne

etha

ne

etha

ne

etha

ne

etha

ne

etha

ne

etha

ne

etha

ne

ethe

ne

ethe

ne

ethe

ne

1 <0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

-

<0.2

<0

.2

<0.2

01 01

oi

Tabl

e 16

. Con

cent

ratio

ns o

f vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes-

Con

tinue

d o>

__

_S

ite

tran

s-1,

2 1,

1,2-

Tri-

Tetr

a-

1,2-

1,

3-

2,2-

1,

2,3-

Tri-

Dib

rom

o-

1,1-

ci

s-1,

3-

tran

s-1,

3-

Hex

a-nu

mbe

r D

ichl

oro-

ch

loro

- ch

loro

- D

ichl

oro-

D

ichi

oro-

D

ichi

oro-

ch

ioro

- 3-

chio

ro-

Dic

hior

o-

Dic

hlor

o-

Dic

hlor

o-

chlo

ro-

Bro

mo-

(fig.

1)

ethe

ne

ethe

ne

ethe

ne

prop

ane

prop

ane

prop

ane

prop

ane

prop

ane

prop

ene

prop

ene

prop

ene

buta

dien

e B

enze

ne

benz

ene

1 <0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<1.0

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<2

Tabl

e 16

. Con

cent

ratio

ns o

f vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes-

Con

tinue

d

__

__

_

Site

1,

2-

1,3-

1,

4-

1,2,

3-Tr

i- 1,

2,4-

Tri-

1,2,

4-Tr

i- 1,

3,5-

Tri-

(1-M

ethy

l- m

ethy

l- nu

mbe

r C

hlor

o-

Dlc

hlor

o-

Dlc

hlor

o-

Dlc

hlor

o-

chlo

ro-

chlo

ro-

Xyle

nes,

m

ethy

l- m

ethy

l- Et

hyl-

n-Pr

opyl

- n-

But

yl-

ethy

l)-

ethy

l)-

(fig.

1)

benz

ene

benz

ene

benz

ene

benz

ene

benz

ene

benz

ene

tota

l be

nzen

e be

nzen

e be

nzen

e be

nzen

e be

nzen

e be

nzen

e be

nzen

e

1 <0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

<0

.2

<0.2

2.3

5.0

1.0

.4

.3

.6

1.8

1.4

.4

<.3

.2

.6

Tabl

e 16

. Con

cent

ratio

ns o

f vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes-

Con

tinue

d

Site

(1

-Met

hyl-

num

ber

prop

yl}-

(fig.

1)

benz

ene

Styr

ene

Tolu

ene

2-C

hlor

o-

tolu

ene

2-C

hlor

o-

Met

hyl-

p-

ethy

l te

rtia

ry-

4-C

hlor

o-

Isop

ropy

l- N

apht

ha-

viny

l bu

tyl

tolu

ene

tolu

ene

lene

et

her

ethe

rA

crol

ein

Acr

ylo-

ni

trile

<0.2

<0.2

<0.2

<0.2

<0.2

0.3

<0.2 .2

<20

<20

<20

<20

<20

<20

1.3

5.1 .2

<20

<20

<20

<20

<20

<20

.2

.4<2

0 <2

0 <2

0

<20

<20

<20

.2

<2

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

Tabl

e 17

. Con

cent

ratio

ns o

f aci

dic,

bas

ic, a

nd n

eutra

l sem

i-vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes

[Con

stitu

ent c

once

ntra

tions

ana

lyze

d at

the U

.S. G

eolo

gica

l Sur

vey,

Arv

ada,

Col

orad

o; c

once

ntra

tions

are

in m

icro

gram

s per

lite

r an

d ar

e w

hole

-wat

er re

cove

rabl

e; <

, les

s th

an]

Site

number

(fig.

1)

Date

1 09

-02-

9210-07-92

02-1

1-93

2 07-22-92

09-17-92

12-0

9-92

3 07-09-92

08-18-92

11-1

8-92

4 08-07-92

09-26-92

02-1

1-93

5 07

-30-

9210

-07-

9212

-09-

92

Time

0558

2214

0245

0543

0600

0118

2244

1917

0715

0526

0710

0245

0250

2128

0212

Ending

date

09-02-92

10-08-92

02-11-93

07-22-92

09-17-92

12-0

9-92

07-10-92

08-18-92

11-1

8-92

08-07-92

09-26-92

02-1

1-93

07-30-92

10-07-92

12-09-92

Ending

time

0637

0148

0517

0822

0936

0608

0510

1935

0912

0756

1101

0445

0455

2347

0600

1,2-Di-

chlo

ro-

benzene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

1,3-

Di-

chloro-

benz

ene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

1,4-

Di-

chlo

ro-

benz

ene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

1,2,

4-Tr

i-

chlo

ro-

benz

ene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Hexa-

chloro-

benzene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Nitr

o­

benz

ene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

8

Tabl

e 17

. Con

cent

ratio

ns o

f aci

dic,

bas

ic, a

nd n

eutra

l sem

i-vol

atile

org

anic

com

poun

ds in

flo

w-w

eigh

ted-

com

posi

te s

ampl

es a

t the

sto

rmw

ater

-run

off s

ampl

ing

site

s C

ontin

ued

Site

2,4-

number

Dini

tro-

(flg. 1)

to

luen

e

1 <5 <5 <5

2 <5 <5 <5

3 <5 <5 <5

4 <5 <5 <5

5 <5 <5 <5

2,6-

Dinitro-

toluene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Phen

ol

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

2-

Chlo

ro-

phen

ol

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

2-

Nitr

o phenoi

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

4-

Nitr

o-

phenol

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

2,4-DI-

chloro-

phen

ol

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

2,4-Di-

methyl-

phen

ol

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

2,4-DI-

nitro-

phen

ol

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

4-Ch

loro

- 3-

meth

yl-

phenol

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

Tabl

e 17

. Con

cent

ratio

ns o

f aci

dic,

bas

ic, a

nd n

eutra

l sem

i-vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes-

Con

tinue

d

Site

nu

mber

(fig.

1)

1 2 3 4 5

2,4,6-Tri-

chloro-

phen

ol

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

4-Methyl-

4,6-dinitro-

phen

ol

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

Penta-

chloro-

phenol

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

<30

Naph

­ th

alen

e

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Acen

aph-

thylene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Acenaph-

thene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Fluo

rene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Anthra­

cene

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Phen

an-

thre

ne

<5 <5

7

<5 <5 <5 <5 <5 <5 <5 <5

7

<5 <5

6

Fluor-

anth

ene

<5 <5 18 <5 <5 <5 <5 <5 <5 <5 <5 15 <5 <5 10

0>

Tabl

e 17

. Con

cent

ratio

ns o

f aci

dic,

bas

ic,

and

neut

ral s

emi-v

olat

ile o

rgan

ic c

ompo

unds

in f

low

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes-

Con

tinue

d

Site

numb

er

(fig.

1)

Pyrene

1 <5 <5 13

2 <5 <5 <5

3 <5 <5 <5

4 <5 <5 11

5 <5 <5 7

Benzo[a]-

Benzo[6]-

Benz

o[A]

- Benzo-

Inde

no-

Dibenzo

anthra-

Benz

o[a]

- fluor-

fluor-

u7,M

- [/

,2,3

-cef

l-

[a,h

\-

Dimethyl

cene

Chrysene

pyrene

anth

ene

anthene

pery

lene

pyrene

anth

race

ne

phth

alat

e

<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5

<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5

<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5

<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5

<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5<10

<10

<10

<10

<10

<10

<10

<10

<5

Tabl

e 17

. Con

cent

ratio

ns o

f aci

dic,

bas

ic,

and

neut

ral s

emi-v

olat

ile o

rgan

ic c

ompo

unds

in f

low

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes

Con

tinue

d

Site

nu

mbe

r(fl

g. D 1 2 3 4 5

Dle

thyl

ph

thal

ate

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Dl-n

-but

yl

phth

alat

e

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

n-B

utyl

- be

nzyl

ph

thal

ate

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Di-n

- D

i-2-e

thyl

- oc

tyl-

hexy

l ph

thal

ate

phth

alat

e

<10

<5

<10

<5

<10

6

<10

6

<10

7

<10

8

<10

<5

<10

<5

<10

10

<10

<5

<10

<5

<10

<5

<10

<5

<10

<5

<10

5

n-N

itro-

so

dlm

eth

yl-

amln

e

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

n-N

itro-

so

di-n

-pro

pyl-

amln

e

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

n-N

itro-

so

di-

phen

ylam

lne

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Isop

horo

ne<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

1,2-

Di-

phen

yl-

hydr

azin

e

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Tabl

e 17

. Con

cent

ratio

ns o

f aci

dic,

bas

ic, a

nd n

eutra

l sem

i-vol

atile

org

anic

com

poun

ds in

flow

-wei

ghte

d-co

mpo

site

sam

ples

at t

he s

torm

wat

er-r

unof

f sam

plin

g si

tes-

Con

tinue

d

Site

num

ber

Hex

a-

(fig

. 1)

ch

loro

- et

hane

1 <5 <5 <5

2 <5 <5 <5

3 <5 <5 <5

4 <5 <5 <5

5 <5 <5 <5

bis(

2-

Chl

oro-

et

hyl)

ethe

r

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

bis(

2-

Chl

orol

so-

prop

yl)

ethe

r

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

bls(

2-

Chl

oro-

et

hoxy

)-

met

hane

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Hex

a-

chlo

ro-

buta

dien

e

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

Hex

a-

chlo

ro-

cycl

open

t-

adie

ne

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

4-B

rom

o-

phen

yl

phen

yl

ethe

r

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

4-C

hlor

o-

phen

yl

phen

yl

ethe

r

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

2-C

hlor

o-

naph

tn-

alen

e

<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

4,4'

-Dia

min

o-

biph

enyl

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

4,4'

-Dia

min

o-

3,3'

dich

loro

- bi

phen

yl

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

<20

Table 18. Stormwater-runoff volume and constituent loads at site 1

[Simulated values were calculated using methods described by Driver and Tasker (1990); °C, degrees Celsius; >, greater than; CaCO3 , calcium car- boate; ND, not detected; --, no data]

Storm loads, in poundsConstituent

Volume, in cubic feetVolume, simulated, in cubic feetChemical oxygen demandChemical oxygen demand, simulatedBiochemical oxygen demand, 5-day at 20 °CCalcium, dissolvedMagnesium, dissolvedSodium, dissolvedPotassium, dissolvedBicarbonateAlkalinity, total as CaCO3Sulfate, dissolvedChloride, dissolvedDissolved solids, residue at 180°CDissolved solids, simulatedSuspended solids, residue at 105 °CSuspended solids, simulatedNitrite plus nitrate as nitrogen, totalNitrite plus nitrate as nitrogen, dissolvedAmmonia as nitrogen, totalAmmonia as nitrogen, dissolvedAmmonia plus organic nitrogen, totalAmmonia plus organic nitrogen, simulatedOrganic nitrogen, totalNitrogen, totalNitrogen, simulated totalPhosphorus, totalPhosphorus, simulated totalPhosphorus, dissolvedPhosphorus, simulated dissolvedArsenic, whole-water recoverableCadmium, whole-water recoverableCadmium, simulated totalChromium, whole-water recoverableCopper, whole-water recoverableCopper, simulated totalLead, whole-water recoverableLead, simulated totalNickel, whole-water recoverableZinc, whole-water recoverableZinc, simulated totalOrganic carbon, totalChlordane, whole-water recoverablecis-Cnlordane,whole-water recoverabletrans-Chlordane, whole- water recoverableDiazinon, whole-water recoverableDieldrin, whole-water recoverableBenzene, whole-water recoverablep-Isopropyltoluene, whole- water recoverableNaphthalene, whole-water recoverableDi-2-ethylexyl phthalate, whole-water recoverableFluorantnene, whole-water recoverablePhenanthrene, whole-water recoverablePyrene, whole-water recoverable

09-02-92

45,30099,000

3,400493

>1,80051

4.8149.0

2301903722

2861,1003,340

610ND

~ND

~9.3

149.39.3

183.72.2

ND.40.028.01.012.28.27.17.74.66.090

2.41.1

710.001.0003.0003.003.0001

ND.0008

NDNDNDNDND

10-07-92

91,500140,000

800640360150

164228

34028012068

8171,5002,600

8704.6~1.6~6.8

185.2

11.423

3.43.01.9.52.01.006.016.03.30.19.34.84.057

1.41.4

220.001

NDND

.001ND

.001NDNDNDNDNDND

02-11-93

25,60082,000

21043054

12013805.6

290240120130609920208490

--1.3

--1.32.7

12~4.0

15.40

1.9.10.34.005.005.009.033.030.15.094.57.01.38

1.042

.0002NDNDNDNDNDND

.0003

.01

.03

.01

.02

65

Table 19. Stormwater-runoff volume and constituent loads at site 2

[Simulated values were calculated using methods described by Driver and Tasker (1990); °C, degrees Celsius; >, greater than; CaCO3 , calcium carbonate; ND, not detected; --, no data]

Storm loads, In poundsConstituent

Volume, in cubic feetVolume, simulated, in cubic feetChemical oxygen demandChemical oxygen demand, simulatedBiochemical oxygen demand, 5-day at 20 °CCalcium, dissolvedMagnesium, dissolvedSodium, dissolvedPotassium, dissolvedBicarbonate,Alkalinity, total as CaCO3Sulfate, dissolvedChloride, dissolvedDissolved solids, residue at 180°CDissolved solids, simulatedSuspended solids, residue at 105 °CSuspended solids, simulatedNitrite plus nitrate as nitrogen, totalAmmonia as nitrogen, totalAmmonia plus organic nitrogen, totalAmmonia plus organic nitrogen, simulated totalOrganic nitrogen, totalNitrogen, totalNitrogen, simulated totalPhosphorus, totalPhosphorus, simulated totalPhosphorus, dissolvedPhosphorus, simulated dissolvedArsenic, whole-water recoverableCadmium, whole-water recoverableCadmium, simulated totalChromium, whole-water recoverableCopper, whole- water recoverableCopper, simulated totalLead, whole-water recoverableLead, simulated totalNickel, whole- water recoverableZinc, whole-water recoverableZinc, simulated totalOrganic carbon, totalChlordane, whole- water recoverableDiazinon, whole-water recoverableBenzene, whole-water recoverablen-Butylbenzene, whole-water recoverableEthylbenzene, whole- water recoverableMesitylene, whole- water recoverableNaphthalene, whole-water recoverablen-Propylbenzene, whole-water recoverablePseudocumene, whole-water recoverableToluene, whole-water recoverableXylene, whole-water recoverableDi-2-ethylexyl phthalate, whole- water recoverable

07-22-92

13,20048,400

157323>37.6

161.44.21.5

494010.77.1

82241166493

.49

.21

.56.7

.31.06.9

.221.3.09.20.002.0008.004

ND.0082.08.035.47.006.23.50

54.00008.00008.0002.0005.0003.0008.0042.0002.004.0011.0019.005

09-17-92

21,60038,800

129272

23.331

2.282.8

92761515

175196206388

1.0.20.8

5.60.61.85.7

.451.0.22.16.004.001.003.007.01.071.055.40.01.27.42

38ND

.0001NDNDNDNDNDNDNDNDND

.009

12-09-92

11,80021,600

3541732235

4.2781

1.8968120

12033711279

205.43.25

1.03.5

.81.43.5

.23

.63

.07

.10

.001

.003

.0019

.006

.006

.055

.023

.26

.004

.081

.2819

.00007NDNDNDNDNDNDNDNDNDND

.006

66

Table 20. Storm water-runoff volume and constituent loads at site 3

[Simulated values were calculated using methods described by Driver and Tasker (1990); °C, degrees Celsius; >, greater than; CaCO3, calcium carbonate; ND, not detected; -, no data]

Storm loads, In poundsConstituent

Volume, in cubic feetVolume, simulated in cubic feetChemical oxygen demandChemical oxygen demand, simulatedBiochemical oxygen demand, 5-day at 20 °CCalcium, dissolvedMagnesium, dissolvedSodium, dissolvedPotassium, dissolvedBicarbonateAlkalinity, total as CaCO3Sulfate, dissolvedChloride, dissolvedDissolved solids, residue at 180°CDissolved solids, simulatedSuspended solids, residue at 105 °CSuspended solids, simulatedNitrite plus nitrate as nitrogen, totalAmmonia as nitrogen, totalAmmonia plus organic nitrogen, totalAmmonia plus organic nitrogen, simulated totalOrganic nitrogen, totalNitrogen, totalNitrogen, simulated totalPhosphorus, totalPhosphorus, simulated totalPhosphorus, dissolvedPhosphorus, simulated dissolvedArsenic, whole-water recoverableCadmium, whole- water recoverableCadmium, simulated totalChromium, whole-water recoverableCopper, whole-water recoverableCopper, simulated totalLead, whole-water recoverableLead, simulated totalNickel, whole-water recoverableZinc, whole-water recoverableZinc, simulated totalOrganic carbon, totalDiazinon, whole-water recoverableEthylbenzene, whole- water recoverableMesitylene, whole- water recoverableNaphthalene, whole-water recoverablen-Propylbenzene, whole-water recoverablePseudocumene, whole-water recoverableToluene, whole-water recoverableXylene, whole-water recoverableDi-2-ethylexyl phthalate, whole-water recoverable

07-09-92

252,000150,000

570925200130

82224

510428

6030

5401,3903,5001,270

6.06.5

2218162821

4.63.5

.94

.59

.03

.02

.01

.27

.29

.201.41.5

.13.61.8

190.003

NDNDNDNDND

.003NDND

08-18-92

36,50045,000

3600363

>50048

2.5117.0

100864312

280440200340

2.32.36.67.04.38.97.91.11.2.96.22.002.002.003.02.043.12.089.62.01.66.76

930.0002.0007.0009.002.0005.0032.0009.0041

ND

11-18-92

46,10029,500

430260200

523

103.5 --

2314

220300110220

2.61.23.25.02.05.85.6

.52

.83

.09

.16

.003ND

.002

.03

.099

.058

.46

.01

.32

.57110NDNDNDNDNDNDNDND

.029

67

Table 21. Stormwater-runoff volume and constituent loads at site 4

[Simulated values were calculated using methods described by Driver and Tasker (1990); °C, degrees Celsius; CaCO3 , calcium carbonate; ND, not detected; --, no data]

Storm loads, In poundsConstituent

Volume, in cubic feetVolume, simulated in cubic feetChemical oxygen demandChemical oxygen demand, simulatedBiochemical oxygen demand, 5-day at 20 °CCalcium, dissolvedMagnesium, dissolvedSodium, dissolvedPotassium, dissolvedBicarbonateAlkalinity, total as CaCO3Sulfate, dissolvedChloride, dissolvedDissolved solids, residue at 180°CDissolved solids, simulatedSuspended solids, residue at 105 °CSuspended solids, simulatedNitrite nitrogen, dissolvedNitrite plus nitrate as nitrogen, totalNitrite plus nitrate as nitrogen, dissolvedAmmonia as nitrogen, totalAmmonia as nitrogen, dissolvedAmmonia plus organic nitrogen, totalAmmonia plus organic nitrogen, simulated totalOrganic nitrogen, totalNitrogen, totalNitrogen, simulated totalPhosphorus, totalPhosphorus, simulated totalPhosphorus, dissolvedPhosphorus, simulated dissolvedArsenic, whole-water recoverableCadmium, whole-water recoverableCadmium, simulated totalChromium, whole-water recoverableCopper, whole-water recoverableCopper, simulated totalLead, whole-water recoverableLead, simulated totalMercury, whole-water recoverableNickel, whole-water recoverableSilver, whole-water recoverableZinc, whole-water recoverableZinc, simulated totalOrganic carbon, totalLindane, whole-water recoverablep,p'-DUT, whole- water recoverablep,p'-DDD, whole- water recoverableDiazinon, whole-water recoverablePCB, Aroclor 1248, whole-water recoverablePseudocumene, whole-water recoverableStyrene, whole-water recoverableHuoranthene, whole-water recoverablePhenanthrene, whole- water recoverablePyrene, whole- water recoverable

08-07-92

97,700120,000

340820

89170

155115

470380140110790

1,3003,300

950~5.7~2.1--8.5

166.7

14.2193.72.9

.92

.50

.02

.01

.009

.05

.79

.20

.611.2.001.073

ND2.51.6

150NDNDND

.001

.015NDNDNDNDND

09-26-92

38,40071,000

140530

--98

8.4315.0

2101707053

420760210520

~3.1-

.70~2

10.98

512

.481.8.2.32.007

ND.005.005.074.15.062.79

ND.007.029.34

1.134

NDNDNDNDND

.001

.0005NDNDND

02-11-93

23,20056,000

3004406435

2.228

2.61301103038

190600110400

.01-2.2-

.742.28.5~4.49.9

.411.4

.1

.26

.003

.003

.004

.035

.025

.14

.16

.66ND

.01ND

.43

.9043

.00004

.0001

.0001NDNDNDND

.022

.01

.016

68

Table 22. Storm water-runoff volume and constituent loads at site 5

[Simulated values were calculated using methods described by Driver and Tasker (1990); °C, degrees Celsius; <, less than; CaCO3, calcium car­ bonate; ND, not detected; --, no data]

Storm loads, In poundsConstituent

Volume, in cubic feetVolume, simulated in cubic feetChemical oxygen demandChemical oxygen demand, simulatedBiochemical oxygen demand, 5-day at 20 °CCalcium, dissolvedMagnesium, dissolvedSodium, dissolvedPotassium, dissolvedBicarbonateAlkalinity, total as CaCO3Sulfate, dissolvedChloride, dissolvedDissolved solids, residue at 180°CDissolved solids, simulatedSuspended solids, residue at 105 °CSuspended solids, simulatedNitrite as nitrogen, totalNitrite plus nitrate as nitrogen, totalAmmonia as nitrogen, totalAmmonia plus organic nitrogen, totalAmmonia plus organic nitrogen, simulated totalOrganic nitrogen, totalNitrogen, totalNitrogen, simulated totalPhosphorus, totalPhosphorus, simulated totalPhosphorus, dissolvedPhosphorus, simulated dissolvedCyanide, totalArsenic, whole-water recoverableCadmium, whole-water recoverableCadmium, simulated totalChromium, whole-water recoverableCopper, whole-water recoverableCopper, simulated totalLead, whole- water recoverableLead, simulated totalMercury, whole-water recoverableNickel, whole-water recoverableZinc, whole-water recoverableZinc, simulated totalOrganic carbon, totalBenzene, whole-water recoverableDichlorodifluoromethane, whole- water recoverableDichloromethane, whole-water recoverableDi-2-ethylexyl phthalate, whole- water recoverableFluoranthene, whole- water recoverablePhenanthrene, whole-water recoverablePyrene, whole-water recoverable

07-30-92

12,80028,000

110130<13

772.7

2,3002.3

200160

9.73,6006,800

87970316ND

.40

.27

.53.8

.2

.93.2

.52

.85

.02

.12

.008

.005

.032

.0013

.019

.036

.052

.64

.19

.0002

.0305.0

.3418

NDNDNDNDNDNDND

10-07-92

19,80040,000

33017012066

3.12,000

.54738

1402,6005,600

120440470

.02

.52

.461.15.1

.61.64.4

.621.2.12.17

ND.002.19.002.017.027.061.36.25

ND.020

2.7.43

84.0002.0004.0002

NDNDNDND

12-09-92

10,2008,600

44506589

3.93,700

2.36051

2705,2009,400

28390

87.006.27.25.1

1.5ND

.41.2.08.30

ND.048.006.002.014.0004.026.015.030.32.08.00006.015

2.3.15

-NDNDND

.003

.006

.004

.004

69