Water-Quality Data, 1999–2005, and 

Ground-Water Level Data, 2004–2005,

for McBaine Bottoms, Including

the Eagle Bluffs Conservation Area,

Columbia, Missouri

Prepared in cooperation with the City of Columbia, Missouri, 

and the Missouri Department of Conservation 

U.S. Department of the Interior 

U.S. Geological Survey 

Data Series 212
Water-Quality Data, 1999–2005, and 

Ground-Water Level Data, 2004–2005, for 

McBaine Bottoms, Including the Eagle 

Bluffs Conservation Area, Columbia, 

Missouri

By Brenda J. Smith and Joseph M. Richards

Prepared in cooperation with the

City of Columbia, Missouri, 

and the Missouri Department of Conservation

Data Series 212

U.S. Department of the Interior

U.S. Geological Survey
U.S. Department of the Interior

DIRK KEMPTHORNE, SECRETARY

U.S. Geological Survey

Mark D. Myers, Director

U.S. Geological Survey, Reston, Virginia: 2006

For sale by U.S. Geological Survey, Information Services

Box 25286, Denver Federal Center

Denver, CO 80225

For more information about the USGS and its products:

Telephone: 1-888-ASK-USGS

World Wide Web: http://www.usgs.gov/

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report.

Suggested citation: 

Smith, B.J., and Richards, J.M., 2006, Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for

McBaine Bottoms, Including the Eagle Bluffs Conservation Area, Columbia, Missouri: U.S. Geological Survey Data 

Series 212, 59 p.
iii

CONTENTS

Abstract. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Study Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Water-Quality Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Sampling Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Ground -Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Surface-Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Ground-Water Level Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figures

1–3. Maps showing:

1. Location of McBaine Bottoms, Columbia, Missouri . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2. Location of water-quality sampling sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3. Location of monitoring wells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Tables

1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples 

from wells and surface-water sites, 1999–2005. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2. Concentrations of trace elements, organic carbon, bromide, and silica in samples from selected 

monitoring wells, 1999 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3. Organic compounds and pesticides analyzed and minimum reporting limits for samples from

selected monitoring wells, June 1999 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

4. Wastewater organic compounds analyzed and minimum reporting limits for samples from selected

monitoring wells and surface-water sites, 1999–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5. Pesticides analyzed and minimum reporting limits for samples from selected monitoring wells and 

surface-water sites, 1999–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6. Concentrations of wastewater organic compounds and pesticides in samples from selected 

monitoring wells and surface-water sampling sites, 1999–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7. Altitude of water levels in monitoring wells, 2004–2005. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
iv

Conversion Factors and Datum

Multiply By To obtain

Length

inch (in.)

inch (in.)

foot (ft)

mile (mi)

2.54

25.4

0.3048

1.609

centimeter (cm)

millimeter (mm)

meter (m)

kilometer (km)

Area

acre

acre

acre

acre

square mile (mi2)

square mile (mi2)

4,047

 0.4047

0.4047

0.004047

259.0

 2.590

square meter (m2)

hectare (ha)

square hectometer (hm2)

square kilometer (km2

)

hectare (ha)

square kilometer (km2)

Flow rate

gallon per minute (gal/min)

gallon per day (gal/d)

million gallons per day (Mgal/d)

0.06308

0.003785

0.04381

liter per second (L/s)

cubic meter per day (m3/d)

cubic meter per second (m3/s)

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 

(NGVD 29).

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

°F = (1.8 x °C) + 32

Altitude, as used in this report, refers to distance above the vertical datum.

Specific conductance is given in microsiemens per centimeter at 25 degrees Celsius (μS/cm at 

25 °C).

Concentrations of chemical constituents in water are given either in milligrams per liter (mg/L) or 

micrograms per liter (μg/L).
Water-Quality Data, 1999–2005, and Ground-Water Level 

Data, 2004–2005, for McBaine Bottoms, Including the 

Eagle Bluffs Conservation Area, Columbia, Missouri

By Brenda J. Smith and Joseph M. Richards

Abstract

The U.S. Geological Survey, in cooperation with the city 

of Columbia, Missouri, and the Missouri Department of Conservation, collected ground-water quality data from June 1999 

through August 2005, surface-water quality data from August 

1999 through August 2003, and water-level data from February 

2004 through August 2005 in McBaine Bottoms, southwest of 

Columbia. McBaine Bottoms, adjacent to the Missouri River, is 

the location of the municipal-supply well field for the city of 

Columbia, the city of Columbia wastewater-treatment wetlands, and the Missouri Department of Conservation Eagle 

Bluffs Conservation Area.

This report presents water-quality data, which include 

water-quality analyses of samples collected from 36 waterquality sampling sites (31 were wells and 5 were surface-water 

sites), and ground-water level data, which include water-level 

measurements from more than 80 wells. Water samples were 

analyzed for physical properties, inorganic chemical constituents, nutrients, and dissolved iron. Selected samples were analyzed for trace elements, wastewater organic compounds, and 

pesticides.

In samples from monitoring wells, chloride concentrations 

ranged from 2.41 to 259 mg/L (milligrams per liter), sodium concentrations ranged from 1.08 to 175 mg/L, and sulfate concentrations ranged from less than 0.2 to 271 mg/L (all concentrations 

were dissolved). Dissolved nitrite plus nitrate as nitrogen concentrations ranged from less than 0.05 to 0.46 mg/L. Total phosphorous concentrations ranged from less than 0.04 to 1.68 mg/L, dissolved phosphorous concentrations ranged from less than 0.04 to 

1.50 mg/L, and dissolved orthophosphorous concentrations 

ranged from less than 0.01 to 1.83 mg/L. Dissolved iron concentrations ranged from less than 6 to 42,900 μg/L (micrograms per 

liter). Dissolved arsenic concentrations in samples from two 

monitoring wells ranged from 11 to 37 μg/L.

In samples from surface-water sampling sites, chloride 

concentrations ranged from 8.67 to 289 mg/L, sodium concentrations ranged from 6.18 to 219 mg/L, and sulfate concentrations ranged from 33.4 to 119 mg/L. All of the minimum concentrations were detected in samples from Perche Creek. 

Dissolved nitrite plus nitrate as nitrogen concentrations ranged 

from less than 0.05 to 1.53 mg/L. Total phosphorous concentrations ranged from 0.07 to 3.06 mg/L, dissolved phosphorous 

concentrations ranged from less than 0.05 to 2.88 mg/L, and 

dissolved orthophosphorous concentrations ranged from less 

than 0.01 to 2.86 mg/L. Most of the maximum concentrations 

were detected in samples from the city outflow.

More than 35 wastewater organic compounds and pesticides were detected in samples from the city outflow. However, 

most concentrations were estimated or their presence verified, 

but not quantified. 

Water levels in monitoring wells ranged from 548.54 to 

576.55 ft (feet) above the National Geodetic Vertical Datum of 

1929 (NGVD 29). The difference in water levels from February 

2004 to August 2005 ranged from 0.13 ft to 10.97 ft.

Introduction

When expansion of the Columbia, Missouri, wastewatertreatment facility became necessary, the construction of a 

wastewater-treatment wetland, hereafter referred to as the treatment wetland, was constructed in McBaine Bottoms (fig. 1) as 

an alternative to expanding the existing activated sludge facilities. The Missouri Department of Conservation uses the treated 

effluent from the treatment wetland as a water source for the 

1,300-acre managed wetland on the 4,200-acre Eagle Bluffs 

Conservation Area (fig. 1). The city of Columbia municipalsupply well field, also in McBaine Bottoms, is north of the 

Eagle Bluffs Conservation Area and west of the treatment wetland.

The treatment wetland consists of four units with a total 

surface area of about 130 acres. Wastewater entering the treatment wetland consists of blended primary and secondary 

treated effluent from the wastewater-treatment facility. The 

design capacity of the treatment wetland is 20 Mgal/d (million 

gallons per day), with an average treated effluent of about 16 

Mgal/d (City of Columbia, 2005). When the treatment wetland 

began treating wasterwater, the city of Columbia stopped using 

Perche Creek as the receiving water for the treated effluent 

(Richards, 2002).

Before the operations began at the treatment wetland, 

monitoring wells were drilled from 1991 through 1993 by the 

city of Columbia and the U.S. Geological Survey, and samples 
2 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

MISSOURI

RIVER

Perche 

Creek 

EXPLANATION

City of Columbia wastewater-treatment wetland unit

Eagle Bluffs Conservation Area

Paved road—Solid gray represents gravel road

Base from U.S. Geological Survey digital data, 1:24,000, 1993

Universal Transverse Mercator projection

Zone 15

Unit 4

Unit 1

Unit 2

Unit 3

BOONE

COUNTY

Columbia

Missouri

McBaine

Bottoms

McBaine

Figure 1. Location of McBaine Bottoms, Columbia, Missouri.

K

92°28'

38°54'

38°50'

92°24'

0 0.5 1 MILE

0 0.5 1 KILOMETER

City of 

Columbia

municipalsupply

well field

Katy Trail
Study Area 3

were collected from the wells for water-quality analyses (Richards, 1995, 1999). The Eagle Bluffs Conservation Area began 

accepting treated effluent in 1994, and full wetland management began in late 1995. After effluent discharge began in 1994, 

samples from a shallow monitoring well, (MW1-2A, fig. 2) 

about 30 ft (feet) deep near treatment wetland unit 1 (fig. 1), 

began showing gradual but marked concentration increases in 

various water-quality constituents. Soon after, samples from 

other monitoring wells on the Eagle Bluffs Conservation Area 

began showing similar changes. The water-quality constituents 

showing the most substantial changes were dissolved sodium, 

potassium, calcium, sulfate, and chloride (Richards, 1999, 

2002).

In 2000, the U.S. Geological Survey installed 55 shallow 

monitoring wells throughout McBaine Bottoms. These wells 

were installed to determine the ground-water flow and groundand surface-water interaction at McBaine Bottoms (Smith, 

2003). Shortly after the wells were installed, one was destroyed.

The city of Columbia [population of 84,531 (U.S. Census 

Bureau, 2000)] uses the Missouri River alluvial aquifer in 

McBaine Bottoms for its municipal water supply and currently 

(2006) pumps water from seven well pairs. Each well pair consists of two, 4-ft diameter wells about 100 ft deep with pumps 

rated at about 2,000 gallons per minute.

The purpose of this report is to present the water-quality 

data from samples collected from June 1999 through August 

2005 from 36 water-quality sampling sites [data collected 

before June 1999 are given in Richards (1995, 1999, and 2002)] 

and to present ground-water level data for wells from 2004 

through 2005 [data collected before 2004 are given in Smith 

(2003)]. Physical properties, inorganic constituent concentrations (including iron), and nutrient concentrations were determined at all sampling sites. Densities of an indicator bacteria 

(fecal coliform) were determined for samples collected from 

1999 through 2002. Concentrations of trace elements, wastewater organic compounds, and pesticides were measured for 

selected samples collected from 1999 through 2003.

Study Area

McBaine Bottoms is part of the Missouri River alluvial 

valley about 7 mi (miles) southwest of Columbia, Missouri. It is 

an 8.7-mi2 (square mile) area bounded to the south and west by 

the Missouri River and to the north and east by the Missouri 

River bluffs. Perche Creek flows southward along the Missouri 

River bluffs and discharges to the Missouri River in the southeast part of the study area (fig. 1). Before the treatment wetland 

was fully operational, the city of Columbia used Perche Creek 

as the discharge point for treated sewage effluent (Richards, 

2002). McBaine Bottoms, including parts of the Eagle Bluffs 

Conservation Area, is agricultural land primarily used for the 

cultivation of row crops, such as corn and soybeans. McBaine 

Bottoms receives an average of 38 in. (inches) of precipitation 

annually (Missouri Department of Natural Resources, 1986).

Land-surface altitudes range from 580 ft above the 

National Geodetic Vertical Datum of 1929 (NGVD 29) in the 

northwestern part of the study area to 550 ft in the extreme 

southeastern part of McBaine Bottoms. The altitude of a bluff 

west of McBaine Bottoms that overlooks the Missouri River 

and the Missouri River alluvial plain is as much as 800 ft above 

the NGVD 29 (Smith, 2003).

The alluvium underlying McBaine Bottoms is composed 

of silt, clay, coarse-grained sand, and gravel. The maximum 

thickness of the alluvium is about 95 ft; the average saturated 

thickness is about 60 ft (Emmett and Jeffrey, 1969). The sand 

and gravel in the lower part of the alluvium form the alluvial 

aquifer (Richards, 1999).

Water-Quality Data

Water samples were collected from 31 wells (fig. 2) from 

June 1999 through August 2005 and from 5 surface-water 

sampling sites from August 1999 through August 2003. The 

samples were analyzed for constituents at the U.S. Geological 

Survey (USGS) National Water Quality Laboratory (NWQL). 

Quality-assurance/quality-control (QA/QC) samples were 

collected and analyzed to evaluate the bias and variability 

associated with environmental data and interpretation of 

analytical results.

Sampling Methods

Samples were collected and processed as described in 

Richards (1995, 1999). The water level, specific conductance, 

pH, temperature, dissolved oxygen, and bacteria densities were 

determined onsite at the time of sampling, after physical properties had stabilized (usually after pumping about two well volumes); inorganic constituent, nutrient, and organic constituent 

concentrations were determined by the NWQL (table 1, at the 

back of this report). Samples were analyzed for dissolved constituents, unless otherwise noted in the tables. Samples were 

analyzed according to methods described by Wershaw and 

others (1983), Fishman and Friedman (1989), Patton and 

Truitt (1992), and Fishman (1993).

The water levels listed in table 1 were measured immediately before the water in the well was pumped. Specific conductance, pH, temperature, and dissolved oxygen were determined 

onsite using procedures described by Wilde and Radtke (1998). 

Specific conductance values were measured using a portable 

conductivity meter with temperature compensation designed to 

express readings in microsiemens per centimeter at 25 °C 

(degrees Celsius). The pH value was measured at the time of 

sample collection with an electronic meter calibrated with buffers bracketing the expected pH values of the samples. The water 

temperature was determined with the same meter that determined the pH value. Dissolved oxygen concentrations were 

determined using a low-range colorimetric method or a portable 

temperature compensated meter.
4 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

MISSOURI

RIVER

Perche

EXPLANATION

City of Columbia wastewater-treatment wetland unit

Paved road—Solid gray represents gravel road

Monitoring well sampling site and identifier

Surface-water sampling site and name

Figure 2. Location of water-quality sampling sites.

MW1-1A

Perche Creek

Creek

K

92°28'

38°54'

38°50'

92°24'

0 0.5 1 MILE

0 0.5 1 KILOMETER

USGS-7

USGS-4

USGS-6

USGS-5S

USGS-5D

USGS-9S

USGS-9D

USGS-1

USGS-3S

USGS-3D

USGS-2S

USGS-2D

USGS-8S

USGS-8D

City

outflow

Missouri

River

Perche

Creek

Blew hole

Eagle Bluffs

outflow

MW1-4A

MW1-4B

MW1-1A

MW1-1B

MW1-2A

MW1-2B

MW2-1A

MW2-1B

MW1-3A

MW1-3B

MW3-1A

MW3-1B

MW4-2A

MW4-2B

MW4-1A

MW4-1B
Water-Quality Data 5

The components of analytical variability (uncertainty) in 

water-quality results can be estimated when QA/QC samples of 

the correct types and quantities are incorporated into measurement procedures. The USGS NWQL incorporates numerous 

QA/QC samples in the laboratory to ensure that the measurement system is functioning properly. In addition to the laboratory QA/QC procedures, replicate and blank samples were collected onsite at McBaine Bottoms. Replicate samples are 

collected and analyzed to determine the precision of sampling, 

processing, and onsite analysis. Generally replicate samples 

were collected immediately after a regular sample using the 

same equipment and sampling techniques. Blank samples were 

used to determine that equipment cleaning, sample collection, 

and processing procedures provided an inconsequential source 

of bias to the regular samples. For the blank samples, highly 

purified water was passed through the same equipment used to 

collect and process the water-quality samples and then stored 

and shipped using the same methods that were used for the 

water-quality samples. Regular, replicate, and blank samples 

were analyzed at the USGS NWQL using identical analytical 

techniques. A relative percent difference less than 20 percent 

between the regular sample and the replicate usually indicates 

that the sampling process is representative. Replicate samples 

analyses are listed in the table adjacent to the regular sample. 

Generally the relative percent difference was less than 20 percent between the regular samples and the replicate samples collected at McBaine Bottoms. Most compounds were not detected 

in any blank samples; if detected, the concentrations were near 

the reporting limit for the compound (data on file at the U.S. 

Geological Survey, Rolla, Missouri).

Ground-Water Quality 

Water-quality samples were collected from 31 wells (fig. 

2). Twenty-six of the monitoring wells that were sampled were 

in well pairs; the well pairs are identified with the suffix A, B, 

S, or D. For each well pair, the shallow well (identified by A or 

S) is about 30 ft deep and the deep well (identified by B or D) 

is about 60 ft deep. Wells USGS-1 and USGS-6 are about 30 ft 

deep, USGS-4 and USGS-7 are about 60 ft deep, and the city of 

Columbia public-supply well 5 is 104 ft deep. Samples were 

collected at monitoring wells designated by the prefix MW1- 

through MW4- from June 1999 through August 2005; samples 

were collected at monitoring wells designated by the prefix 

USGS- from August 1999 through April 2003; and samples 

were collected at public-supply well 5 during 2003.

Constituent concentrations that have shown the most substantial changes since the operation of the wetland were dissolved sodium, potassium, calcium, sulfate, and chloride (Richards, 1999, 2002). The following concentrations were 

determined in samples collected from June 1999 through 

August 2005: calcium concentrations ranged from 77.1 to 226 

mg/L (milligrams per liter), chloride concentrations ranged 

from 2.41 to 259 mg/L, potassium concentrations ranged from 

1.59 to 8.60 mg/L, sodium concentrations ranged from 1.08 to 

175 mg/L, and sulfate concentrations ranged from less than 0.2 

to 271 mg/L (all concentrations were dissolved). The Missouri 

secondary maximum contaminant level for drinking water for 

chloride and sulfate is 250 mg/L (Missouri Department of 

Natural Resources, 2005).

Nutrients (nitrogen and phosphorous species) are of particular interest in a wetland environment, especially one in which 

the source of water is treated sewage effluent. The concentration of dissolved ammonia as nitrogen ranged from less than 

0.02 to 4.05 mg/L (milligrams per liter). Dissolved nitrite plus 

nitrate as nitrogen concentrations ranged from less than 0.05 to 

0.46 mg/L. Total phosphorous concentrations ranged from less 

than 0.04 to 1.68 mg/L, dissolved phosphorous concentrations 

ranged from less than 0.04 to 1.50 mg/L, and dissolved orthophosphorous concentrations ranged from less than 0.01 to 1.83 

mg/L.

Fecal coliform densities were determined for sampling 

sites from 1999 through 2002 (data on file at the U.S. Geological Survey, Rolla, Missouri). Densities in samples from monitoring wells were less than 5 col/100 mL (colonies per 100 milliliters). However, during sampling on August 23 through 25, 

2000, densities in samples from seven monitoring wells ranged 

from an estimated 7 to an estimated 150 col/100 mL. These 

wells included monitoring wells MW3-1A, MW4-1A, MW4-

2A, USGS-4, USGS-5S, USGS-6, and USGS-7 (fig. 2).

Dissolved trace-element concentrations were determined 

in selected samples from monitoring wells collected in June and 

September 1999 (table 2, at the back of this report), except for 

iron. Iron concentrations were determined for all samples collected from 1999 to 2005 (table 1) and ranged from less than 6 

to 42,900 μg/L (micrograms per liter). Arsenic concentrations 

were less than 10 μg/L in all samples except for those from 

monitoring wells MW1-3A and MW1-4B. In samples from 

these wells, the concentrations ranged from 11 to 37 μg/L. Concentrations of beryllium, cadmium, chromium, copper, lead, 

molybdenum, and silver were less than the reporting limit. 

Detected concentrations for mercury, nickel, selenium, vanadium, and zinc were at the reporting limit or were estimated less 

than the reporting limit (table 2).

In June 1999, water-quality samples were collected at five 

monitoring wells (MW1-3B, MW1-4A, MW2-1A, MW4-1A, 

and USGS-9S) for the determination of organic compounds and 

pesticides. The samples were analyzed for concentrations 

of selected organic compounds and pesticides (table 3, at the 

back of this report). No constituent concentrations were 

detected in these samples. Concentrations of wastewater 

organic compounds and pesticides were determined in samples 

from selected monitoring wells from 1999 through 2003. A list 

of wastewater organic compounds (table 4, at the back of this 

report) and pesticides (table 5, at the back of this report) that 

were analyzed and their minimum reporting limits are given. 

The concentrations of wastewater organic compounds and pesticides are listed in table 6, at the back of the report. Six wastewater organic compounds and pesticides were detected in samples from monitoring wells MW3-1A and USGS-3S, and seven 

in samples from monitoring well MW1-3A. Detected concen-
6 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

trations were estimated or their presence verified, but not quantified. The exceptions were atrazine concentrations of 0.007 

μg/L detected in a water sample from monitoring well MW4-

1A and 0.008 μg/L detected in a sample from monitoring well 

MW1-3B and 10 phenol concentrations that ranged from 0.5 to 

1.8 μg/L. The phenol concentrations were detected in samples 

from monitoring wells MW1-1A, MW1-3A, MW1-4A, MW3-

1A, MW4-1A, MW4-2A, USGS-3S, and USGS-9D.

Surface-Water Quality 

The five surface-water sites (fig. 2) include a scour hole 

caused by levee failures during past flooding that has formed 

along the levee surrounding the study area (blew hole), the 

outflow from the treatment wetlands (city outflow), the outflow from the Eagle Bluffs Conservation Area (Eagle Bluffs 

outflow), a site on Perche Creek near the blew hole (Perche 

Creek), and a site on the Missouri River near the Eagle Bluffs 

Conservation Area (Missouri River). Samples were collected 

at these sites from August 1999 through August 2003, except 

for the Missouri River site where samples were collected during 2003.

Calcium concentrations ranged from 31.6 to 104 mg/L, 

chloride concentrations ranged from 8.67 to 289 mg/L, potassium concentrations ranged from 3.91 to 41.5 mg/L, sodium 

concentrations ranged from 6.18 to 219 mg/L, and sulfate concentrations ranged from 33.4 to 119 mg/L (table 1; all concentrations were dissolved). All of the minimum concentrations 

were detected in samples from Perche Creek.

Nutrient concentrations were measured in samples collected from the surface-water sites (table 1). The concentration 

of dissolved ammonia as nitrogen ranged from less than 0.02 to 

an estimated concentration of 14.6 mg/L. Dissolved nitrite plus 

nitrate as nitrogen concentrations ranged from less than 0.05 to 

1.53 mg/L. Total phosphorous concentrations ranged from 0.07 

to 3.06 mg/L, dissolved phosphorous concentrations ranged 

from less than 0.05 to 2.88 mg/L, and dissolved orthophosphorous concentrations ranged from less than 0.01 to 2.86 mg/L. 

Most of the maximum concentration were detected in samples 

from the city outflow.

Densities of fecal coliform bacteria in samples from the 

surface-water sites were larger than those in samples from monitoring wells. The densities ranged from less than 1 col/100 mL 

to an estimated 57,000 col/100 mL at the city outflow (data on 

file at the U.S. Geological Survey, Rolla, Missouri).

More than 35 wastewater organic compounds and pesticides were detected in samples from the city outflow (table 5). 

However, most concentrations were estimated or their presence verified, but not quantified. Atrazine concentrations in 

samples from three of the surface-water sampling sites (blew 

hole, city outflow, and Perche Creek) ranged from 0.008 to 

0.192 μg/L Diazinon concentrations in samples from three of 

the surface-water sampling sites (city outflow, Eagle Bluffs 

outflow, and Perche Creek) ranged from 0.012 to an estimated 

0.100 μg/L.

Ground-Water Level Data

Ground-water levels were measured in more than 80 wells 

in McBaine Bottoms (fig. 3). They included the 30 wells that 

were sampled for water-quality analyses, the wells that were 

installed in 2000, and additional wells that included 2 wells 

installed by the city of Columbia and 2 wells installed by the 

U.S. Geological Survey. Initially, 55 wells were installed in 

2000, but shortly thereafter, monitoring well MW-149 was 

destroyed. The altitude of monitoring well measuring points 

(usually the top of the riser pipe) was surveyed so that water levels could be accurately referenced to a common datum (NGVD 

29). An electric tape was lowered into the well, and the depth to 

the ground water from the measuring point was read to the nearest 0.01 ft. Water-level measurements were made in February 

and August 2004 and March and August 2005 (table 7, at the 

back of this report). Water-level measurements at all sites were 

made during the same day so the Missouri River stage fluctuations or temporal ground-water fluctuations would have a minimal effect on the measurements. 

Water levels ranged from 548.54 ft above NGVD 29 in 

monitoring well MW-147 to 576.55 ft above NGVD 29 in monitoring well MW-142. The difference in water levels from February 2004 to August 2005 ranged from 0.13 ft at MW-150 to 

10.97 ft at MW-152.

Summary

The U.S. Geological Survey, in cooperation with the city 

of Columbia, Missouri, and the Missouri Department of Conservation, collected ground-water quality data from June 1999 

through August 2005, surface-water quality data from August 

1999 through August 2003, and water-level data from February 

and August 2004 and March and August 2005 in McBaine Bottoms, southwest of Columbia. McBaine Bottoms, adjacent to 

the Missouri River, is the location of the municipal-supply well 

field for the city of Columbia, the city of Columbia wastewatertreatment wetlands, and the Missouri Department of Conservation Eagle Bluffs Conservation Area.

This report presents water-quality data, which include 

water-quality analyses of samples collected from 36 waterquality sampling sites (31 were wells and 5 were surface-water 

sites), and ground-water level data, which include water-level 

measurements from more than 80 wells. Water samples were 

analyzed for physical properties, inorganic chemical constituents, nutrients, and dissolved iron. Selected samples were analyzed for trace elements, wastewater organic compounds, and 

pesticides.

In samples from monitoring wells, calcium concentrations 

ranged from 77.1 to 226 mg/L (milligrams per liter), chloride 

concentrations ranged from 2.41 to 259 mg/L, potassium concentrations ranged from 1.59 to 8.60 mg/L, sodium concentrations ranged from 1.08 to 175 mg/L, and sulfate concentrations 

ranged from less than 0.2 to 271 mg/L (all concentrations were 
Summary 7

MISSOURI

RIVER

Perche 

Creek 

EXPLANATION

City of Columbia wastewater-treatment wetland unit

Paved road—Solid gray represents gravel road

Monitoring well and identifier

Figure 3. Location of monitoring wells.

MW-104

K

92°28'

38°54'

38°50'

92°24'

0 0.5 1 MILE

0 0.5 1 KILOMETER

USGS-7

USGS-4

USGS-6

SP11, MW28-67

MW-155

MW-154

MW-153

MW-152

MW-151 MW-150

MW-148

MW-147 MW-146

MW-145 MW-144

MW-143

MW-142

MW-141

MW-140

MW-139

MW-137 MW-138

MW-136

MW-135

MW-134

MW-133 MW-132

MW-131

MW-129 MW-130

MW-128

MW-127

MW-126

MW-125

MW-124

MW-123 MW-122

MW-121

MW-120

MW-119 MW-118

MW-117

MW-116

MW-115

MW-114

MW-113

MW-112

MW-111

MW-110

MW-109 MW-108

MW-107

MW-106

MW-105

MW-104

MW-103

MW-102

MW-101

USGS-5S,D

USGS-9S,D

MW1-4A,B

MW1-1A,B

MW1-2A,B

MW2-1A,B

MW1-3A,B

MW3-1A,B

USGS-1

USGS-3S,D

SP4

USGS-2S,D

MW4-2A,B

MW4-1A,B

USGS-8S,D

MW13-67
8 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

dissolved). Dissolved nitrite plus nitrate as nitrogen concentrations ranged from less than 0.05 to 0.46 mg/L. Total phosphorous concentrations ranged from less than 0.04 to 1.68 mg/L, 

dissolved phosphorous concentrations ranged from less than 

0.04 to 1.50 mg/L, and dissolved orthophosphorous concentrations ranged from less than 0.01 to 1.83 mg/L. Dissolved iron 

concentrations ranged from less than 6 to 42,900 μg/L (micrograms per liter). Dissolved arsenic concentrations in samples 

from two monitoring wells ranged from 11 to 37 μg/L.

In samples from surface-water sampling sites, calcium 

concentrations ranged from 31.6 to 104 mg/L, chloride concentrations ranged from 8.67 to 289 mg/L, potassium concentrations ranged from 3.91 to 41.5 mg/L, sodium concentrations 

ranged from 6.18 to 219 mg/L, and sulfate concentrations 

ranged from 33.4 to 119 mg/L (all concentrations were dissolved). All of the minimum concentrations were detected in 

samples from Perche Creek. Dissolved nitrite plus nitrate as 

nitrogen concentrations ranged from less than 0.05 to 1.53 

mg/L. Total phosphorous concentrations ranged from 0.07 to 

3.06 mg/L, dissolved phosphorous concentrations ranged from 

less than 0.05 to 2.88 mg/L, and dissolved orthophosphorous 

concentrations ranged from less than 0.01 to 2.86 mg/L. Most 

of the maximum concentration were detected in samples from 

the city outflow.

More than 35 wastewater organic compounds and pesticides were detected in samples from the city outflow. However, 

most concentrations were estimated or their presence verified, 

but not quantified. 

Water levels in monitoring wells ranged from 548.54 ft to 

576.55 ft above the National Geodetic Vertical Datum of 1929 

(NGVD 29). The difference in water levels from February 2004 

to August 2005 ranged from 0.13 ft to 10.97 ft.

References

City of Columbia, 2005, Columbia Regional Wastewater Treatment Plant, accessed on July 7, 2005, at http://

wwwgocolumbiamo.com/PublicWorks/Sewer/

wwtppg_4.html. 

Emmett, L.F., and Jeffrey, H.G., 1969, Reconnaissance of the 

ground-water resources of the Missouri River alluvium 

between Jefferson City and Miami, Missouri: U.S. Geological Survey Hydrologic Investigations Atlas HA–340, 1 sheet.

Fishman, M.J., ed., 1993, Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of inorganic and organic constituents in water and 

fluvial sediments: U.S. Geological Survey Open-File Report 

93–125, 217 p.

Fishman, M.J., and Friedman, L.C., 1989, Methods for determination of inorganic substances in water and fluvial sediments: U.S. Geological Survey Techniques of WaterResources Investigations, book 5, chap. A1, 545 p.

Missouri Department of Natural Resources, 1986, Missouri 

water atlas: Jefferson City, 100 p.

Missouri Department of Natural Resources, 2005, Code of state 

regulations—Chapter 4, Contaminant levels and monitoring: 

accessed September 2005 at URL http://

www.sos.state.mo.us/adrules/csr/current/10csr/10c60-4.pdf. 

Patton, C.J., and Truitt, W.P., 1992, Methods of analysis by the 

U.S. Geological Survey National Water Quality Laboratory—Determination of total phosphorus by a Kjeldahl 

digestion method and an automated colorimetric finish that 

includes dialysis: U.S. Geological Survey Open-File Report 

92–146, 39 p.

Richards, J.M., 1995, Hydrologic data for the Columbia/Eagle 

Bluffs Wetland Complex, Columbia, Missouri—1992–93: 

U.S. Geological Survey Open-File Report 95–109, 50 p.

Richards, J.M., 1999, Hydrologic data for the Columbia/Eagle 

Bluffs Wetland Complex, Columbia, Missouri—1993–99: 

U.S. Geological Survey Open-File Report 99–607, 91 p.

Richards, J.M., 2002, Water-quality and ground-water hydrology of the Columbia/Eagle Bluffs Wetland Complex, 

Columbia, Missouri—1992–99: U.S. Geological Survey 

Water-Resources Investigations Report 02–4227, 131 p.

Smith, B.J., 2003, Ground-water flow and ground- and surfacewater interaction at McBaine Bottoms, Columbia, Missouri—2000–02: U.S. Geological Survey Water-Resources 

Investigations Report 03–4234, 83 p.

U.S. Census Bureau, 2000, Population estimates program, population division: accessed March 2002 at URL http://

www.gocolumbiamo.com/About_Columbia/demographics.html.

Wershaw, R.L., Fishman, J., Grabbe, R.R., and Lowe, Le.E., 

eds., 1983, Methods for the determination of organic substances in water and fluvial sediments: U.S. Geological 

Survey Techniques of Water-Resources Investigations, book 

5, chap. A3, 80 p.

Wilde, F.D., and Radtke, D.B., eds., 1998, National field 

manual for the collection of water-quality data: Field measurements: U.S. Geological Survey Techniques of WaterResources Investigations, book 9, chap. A6, variously paginated.
Tables

Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW1-1A (measuring point altitude 578.50 feet above NGVD 29)

06-03-99 1040 7.51 883 6.7 15.2 <0.1 380 119 21.0 24.2 2.72 09-02-99 1000 -- 928 6.6 15.2 <.1 440 138 23.2 24.5 3.00 03-07-00 1240 10.29 923 6.6 16.4 <.1 400 124 22.0 22.5 2.90 08-24-00 1450 10.07 899 6.5 16.6 <.1 380 119 21.1 24.7 2.80 02-21-01 1020 10.07 852 6.5 15.4 <.1 400 124 21.6 25.0 2.56 08-28-01 1320 9.45 970 6.6 15.9 <.1 420 132 23.0 25.2 2.96 02-28-02 1010 9.75 893 6.7 14.3 <.1 380 120 20.4 25.1 2.72 08-20-02 1420 9.92 1,020 6.8 16.4 <.1 430 133 22.6 27.3 2.97 04-03-03 1100 9.67 1,060 6.6 15.6 <.1 -- -- -- -- -- 08-28-03 1020 11.34 1,020 6.7 15.9 <.1 -- -- -- -- -- 02-26-04 1320 9.44 1,040 6.7 14.9 <.1 -- 155 26.9 27.9 3.28 08-25-04 1140 9.52 1,110 6.8 15.9 -- 530 167 28.2 28.6 3.14 03-02-05 1210 8.29 1,170 6.6 15.0 -- 620 192 32.8 28.4 3.41 08-03-05 1200 10.12 1,100 6.6 15.7 -- 472 149 24.2 26.6 2.85 

MW1-1B (measuring point altitude 578.34 feet above NGVD 29)

06-03-99 1000 10.44 1,340 6.8 15.1 <.1 660 201 38.0 21.9 6.74 

09-02-99 1050 -- 1,290 6.8 15.5 <.1 690 214 38.0 21.6 7.04 

03-07-00 1330 17.32 1,270 6.9 16.1 <.1 590 179 34.3 20.2 5.88 

08-24-00 1540 16.71 1,270 6.7 16.9 <.1 610 186 34.8 19.7 7.14 

02-21-01 1100 15.70 1,180 6.7 14.0 <.1 630 193 36.1 20.4 6.39 

08-28-01 1550 15.49 1,310 6.9 16.1 <.1 640 195 36.3 20.1 6.83 02-28-02 1100 16.67 1,260 7.0 14.3 <.1 590 183 33.4 19.2 6.43 08-20-02 1330 16.07 1,350 7.0 16.0 <.1 650 200 35.9 20.9 6.47 02-26-04 1400 16.20 1,230 6.9 14.8 -- 650 199 36.6 20.8 6.86 08-25-04 1230 16.15 1,300 7.0 16.8 -- 680 209 37.2 22.0 6.68 03-02-05 1300 14.43 1,290 6.9 14.6 -- 730 226 39.5 21.2 7.00 08-03-05 1230 16.98 1,170 6.8 15.1 -- 647 203 34.4 19.8 6.84 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Ammonia Residue, sum Nitrite plus Ammonia as plus organic Phosphorous, Phosphor

Sulfate Chloride Fluoride of constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW1-1A 06-03-99 1040 133 11.1 0.2 566 0.036 <0.05 1.29 1.3 1.47 1.50 

09-02-99 1000 158 11.0 .2 622 .025 <.05 1.29 1.2 1.28 1.15 03-07-00 1240 168 12.2 .1 560 .022 <.05 1.15 1.4 1.68 <.05 08-24-00 1450 159 13.4 .2 535 .024 <.05 1.09 1.2 1.49 1.41 02-21-01 1020 179 12.4 .2 556 E.004 <.05 1.12 1.2 1.40 .62 08-28-01 1320 140 40.8 .2 564 E.018 <.05 E1.23 1.3 1.46 1.45 02-28-02 1010 172 19.3 .2 547 .027 <.05 1.23 1.3 1.47 1.23 08-20-02 1420 157 34.8 .2 576 .028 <.05 1.23 1.4 1.45 1.35 04-03-03 1100 -- 13.6 -- -- -- -- -- -- -- -- 08-28-03 1020 -- 22.2 -- -- -- -- -- -- -- -- 02-26-04 1320 200 25.4 .2 641 .109 <.60 1.20 1.5 1.51 1.41 08-25-04 1140 214 27.2 .2 687 <.008 <.06 1.26 1.5 1.44 .29 03-02-05 1210 224 26.6 .2 744 <.008 <.06 1.30 1.4 1.55 1.34 08-03-05 1200 184 49.1 .2 675 <.008 <.06 1.20 1.4 1.44 .70 

MW1-1B 06-03-99 1000 268 12.4 .2 904 .077 <.05 2.99 2.5 1.30 1.27 

09-02-99 1050 271 14.4 .2 928 .065 <.05 2.50 2.3 1.20 1.10 03-07-00 1330 257 12.3 .2 809 .018 <.05 2.28 2.6 1.41 <.05 08-24-00 1540 241 12.8 .2 801 <.010 <.05 2.20 2.4 1.34 1.09 02-21-01 1100 251 11.5 .3 817 <.006 <.05 2.18 2.4 1.30 .10 08-28-01 1550 244 11.4 .2 811 E.009 <.05 E2.36 2.4 1.37 1.29 02-28-02 1100 256 12.9 .2 811 .090 <.05 2.22 2.4 1.35 1.23 08-20-02 1330 245 11.5 .2 825 .085 <.05 2.40 2.5 1.38 1.49 02-26-04 1400 241 12.6 .2 816 .095 <.60 2.14 2.5 1.41 .99 08-25-04 1230 242 12.1 .2 833 <.008 <.06 4.05 2.4 1.38 .92 03-02-05 1300 247 12.5 .2 879 <.008 <.06 3.64 2.4 1.36 1.11 08-03-05 1230 247 12.7 .2 842 E.004 <.06 2.18 2.4 1.34 .26 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW1-2A (measuring point altitude 573.38 feet above NGVD 29)

06-03-99 0900 8.36 1,390 7.2 14.5 <0.1 360 100 27.6 139 5.45 09-02-99 0810 -- 1,410 7.1 15.2 <.1 400 112 28.9 148 5.92 03-07-00 1100 18.02 1,440 7.0 16.1 <.1 390 108 30.4 140 5.69 08-24-00 1320 18.62 1,380 7.0 15.6 <.1 390 108 30.2 125 5.46 02-21-01 1310 19.38 -- 7.0 13.6 <.1 410 113 31.3 131 4.95 08-28-01 1440 14.43 1,430 7.1 16.2 <.1 400 111 30.7 137 5.76 02-28-02 1310 18.51 1,700 7.2 14.7 <.1 480 132 35.7 158 6.07 08-20-02 1520 16.70 1,770 7.2 16.8 <.1 480 135 35.3 175 6.16 04-03-03 1000 20.82 1,560 7.1 15.4 <.1 -- -- -- -- -- 08-28-03 1100 20.21 1,420 7.1 15.9 <.1 -- -- -- -- -- 02-26-04 1500 20.66 1,190 7.1 14.9 <.1 470 131 35.3 85.1 5.49 08-25-04 1015 17.61 992 7.3 15.5 -- 450 125 33.5 46.5 4.86 03-02-05 1000 17.63 919 7.0 14.1 -- 490 137 35.7 27.7 4.20 08-03-05 1100 18.71 989 7.0 15.0 -- 464 129 34.7 31.3 4.39 

MW1-2B (measuring point altitude 573.45 feet above NGVD 29)

06-03-99 0820 8.42 1,370 7.1 15.0 <.1 540 154 38.1 60.4 5.87 09-02-99 0900 -- 1,400 7.1 15.2 <.1 550 157 37.5 85.6 6.17 03-07-00 1130 18.10 1,370 7.1 15.9 <.1 450 127 31.7 90.8 5.99 08-24-00 1400 18.70 1,330 7.1 15.8 <.1 470 135 33.0 73.8 6.41 02-21-01 1350 19.46 -- 7.1 14.1 <.1 470 136 32.6 109 5.97 08-28-01 1530 14.48 1,410 7.2 15.9 <.1 510 145 36.3 86.6 6.25 02-28-02 1400 18.98 1,470 7.3 14.5 <.1 450 128 31.6 115 6.18 08-20-02 1610 16.76 1,580 7.3 16.6 <.1 510 144 35.6 117 6.38 02-26-04 1540 20.72 1,290 7.3 14.7 -- 480 137 32.6 99.5 6.55 08-25-04 1050 17.67 992 7.4 16.2 -- 420 119 29.0 50.7 5.67 03-02-05 1100 17.68 1,180 7.1 14.5 -- 500 142 35.6 66.3 6.13 08-03-05 1115 18.75 1,400 7.2 14.9 -- 559 158 40.0 79.6 6.38 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Ammonia Residue, sum Nitrite plus Ammonia as plus organic Phosphorous, Phosphor

Sulfate Chloride Fluoride of constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW1-2A 06-03-99 0900 58.3 208 0.4 773 <0.010 <0.05 0.15 0.29 0.14 <0.05 

09-02-99 0810 54.1 214 .4 815 <.010 <.05 .11 .25 .14 .11 03-07-00 1100 69.0 232 .3 806 <.010 <.05 .11 .26 .11 .09 08-24-00 1320 71.4 203 .3 759 <.010 <.05 .10 .23 .11 .10 02-21-01 1310 66.7 204 .4 772 <.006 <.05 .08 .20 .12 .06 08-28-01 1440 62.0 207 .3 773 <.006 <.05 E.09 .21 .14 .08 02-28-02 1310 62.4 259 .4 946 E.004 <.05 .11 .27 .14 .12 08-20-02 1520 84.4 242 .3 930 <.008 <.05 .12 .28 .15 .10 04-03-03 1000 -- 221 -- -- -- -- -- -- -- -- 08-28-03 1100 -- 198 -- -- -- -- -- -- -- -- 02-26-04 1500 48.3 137 .3 647 E.050 <.60 .85 .23 .11 .10 08-25-04 1015 38.1 59.4 .3 559 <.008 E.03 .09 .16 .13 .09 03-02-05 1000 32.4 36.2 .3 528 <.008 <.06 .06 .13 .06 E.04 08-03-05 1100 35.9 78.2 .3 552 <.008 <.06 .08 .15 .10 .04 

MW1-2B 06-03-99 0820 50.6 175 .2 770 .017 <.05 .73 .48 .21 .32 

09-02-99 0900 64.7 198 .2 829 .013 <.05 .62 .87 .30 .28 03-07-00 1130 57.3 194 .2 745 <.010 <.05 .57 .77 .29 <.05 08-24-00 1400 37.0 173 .2 708 .014 <.05 .55 .68 .31 .31 02-21-01 1350 59.9 215 .3 796 <.006 <.05 .59 .78 .33 .36 08-28-01 1530 36.5 186 .2 756 E.005 <.05 E.73 .89 .34 .29 02-28-02 1400 45.4 216 .3 808 .015 <.05 .70 1.1 .33 .25 08-20-02 1610 44.9 208 .2 826 E.007 <.05 .69 .87 .34 .33 02-26-04 1540 30.7 166 .2 677 <.080 <.60 .51 .72 .33 .28 08-25-04 1050 1.70 72.2 .2 539 <.008 <.06 .52 .63 .35 .25 03-02-05 1100 13.7 123 .2 659 <.008 <.06 .51 .68 .30 .16 08-03-05 1115 31.2 188 .2 782 <.008 <.06 .66 .86 .34 .07 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW1-3A (measuring point altitude 575.05 feet above NGVD 29)

06-03-99 1250 10.42 783 7.1 15.3 <0.1 400 104 32.6 5.54 4.90 09-01-99 1440 -- 971 7.2 15.2 <.1 480 126 41.0 6.18 4.60 03-07-00 1440 20.26 1,040 7.2 16.8 <.1 490 129 41.8 6.07 5.18 08-22-00 1230 21.34 1,120 7.1 16.9 <.1 550 142 47.0 6.82 4.76 02-20-01 1640 21.75 1,120 7.0 14.6 <.1 580 153 48.8 8.76 4.88 08-28-01 1610 16.39 1,300 7.1 15.8 <.1 640 169 52.3 1.08 4.71 02-28-02 1520 20.84 1,170 7.2 15.0 <.1 540 144 45.0 13.2 5.55 08-20-02 0930 19.37 1,300 7.2 15.8 <.1 590 158 47.8 18.0 4.96 04-02-03 1630 23.50 1,140 7.2 16.3 <.1 -- -- -- -- -- 08-28-03 1140 22.51 1,230 7.1 16.4 <.1 -- -- -- -- -- 02-27-04 1000 23.17 1,220 7.1 15.0 -- 600 159 49.6 33.1 6.21 

08-25-04 1430 19.60 1,380 7.2 16.8 -- 630 167 51.3 42.3 5.79 03-07-05 1100 19.81 1,320 7.0 14.8 -- 590 154 50.3 48.3 6.27 08-03-05 1525 20.67 1,255 7.1 15.0 -- 576 154 46.3 48.4 5.77 

MW1-3B (measuring point altitude 574.97 feet above NGVD 29)

06-03-99 1350 10.45 915 7.1 15.2 <.1 450 128 31.8 5.98 3.61 09-01-99 1550 -- 1,030 7.1 15.2 <.1 520 146 37.5 6.89 4.01 

03-07-00 1410 20.30 1,090 7.1 15.8 <.1 510 145 36.8 8.66 4.19 08-22-00 1310 21.39 1,150 7.0 16.7 <.1 540 152 39.1 12.6 4.34 02-20-01 1600 21.78 1,040 7.0 14.2 <.1 530 152 37.5 11.8 3.88 08-28-01 1645 16.44 1,210 7.1 15.8 <.1 580 165 40.3 13.8 4.53 02-28-02 1440 20.89 1,210 7.2 14.5 <.1 540 155 38.0 15.1 4.57 08-20-02 0830 19.40 1,330 7.2 15.8 <.1 590 170 40.1 18.8 4.59 02-27-04 0920 23.21 1,260 7.1 14.8 <.1 620 177 42.7 31.2 4.97 08-25-04 1345 19.64 1,340 7.3 15.8 -- 630 180 42.7 35.8 4.75 03-07-05 1140 19.85 1,320 7.1 14.7 -- 610 175 41.4 39.4 4.89 

* 1150 19.85 1,320 7.1 14.7 -- 600 173 40.9 38.8 4.95 

08-03-05 1520 20.71 1,295 7.2 15.0 -- 605 174 41.4 39.2 4.79 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Ammonia Residue, sum Nitrite plus Ammonia as plus organic Phosphorous, Phosphor

Sulfate Chloride Fluoride of constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW1-3A 06-03-99 1250 35.5 34.7 0.3 475 0.012 <0.05 0.66 0.70 0.64 0.28 

09-01-99 1440 51.1 92.6 .3 574 <.010 <.05 .43 .43 .44 .35 03-07-00 1440 57.0 114 .3 563 <.010 <.05 .47 .53 .37 <.05 08-22-00 1230 53.3 131 .3 602 .018 <.05 .43 .54 .30 .18 02-20-01 1640 63.9 147 .3 647 <.006 <.05 .38 .44 .21 .12 08-28-01 1610 69.7 166 .3 683 <.006 <.05 E.29 .39 .21 .14 02-28-02 1520 64.1 143 .3 642 .016 <.05 .49 .57 .28 .24 08-20-02 0930 64.6 147 .3 663 E.004 <.05 .38 .47 .23 .17 04-02-03 1630 -- 128 -- -- -- -- -- -- -- -- 08-28-03 1140 -- 167 -- -- -- -- -- -- -- -- 02-27-04 1000 67.4 161 .3 624 <.080 <.60 <.40 .30 .04 <.04 08-25-04 1430 75.2 174 .3 753 <.008 <.06 .52 .63 .16 .12 03-07-05 1100 74.1 165 .4 773 <.008 <.06 .48 .63 .16 .10 08-03-05 1525 72.1 156 .3 724 <.008 <.06 .48 .57 .16 .05 

MW1-3B 06-03-99 1350 32.3 73.7 .3 521 <.010 <0.05 0.41 0.40 0.32 0.39 

09-01-99 1550 39.1 107 .3 601 <.010 <.05 .33 .34 .27 .23 03-07-00 1410 41.5 120 .3 585 <.010 <.05 .34 .42 .28 <.05 08-22-00 1310 37.3 131 .3 608 <.010 <.05 .35 .47 .31 .14 02-20-01 1600 43.4 123 .4 595 <.006 <.05 .34 .41 .30 .17 08-28-01 1645 48.5 140 .3 644 E.009 <.05 E.39 .48 .31 .26 02-28-02 1440 46.4 148 .4 640 .013 <.05 .38 .51 .29 .26 08-20-02 0830 44.8 161 .3 678 .011 <.05 .41 .51 .29 .30 02-27-04 0920 44.6 175 .4 648 E.045 <.60 E.36 .56 .31 .22 08-25-04 1345 48.0 175 .3 723 <.008 <.06 .43 .54 .29 .22 03-07-05 1140 45.9 174 .4 759 <.008 <.06 .41 .53 .29 .23 

* 1150 46.1 173 .4 755 <.008 <.06 .41 .52 .28 .21 

08-03-05 1520 43.7 175 .4 736 <.008 <.06 .41 .56 .30 .14 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW1-4A (measuring point altitude 583.46 feet above NGVD 29)

06-01-99 1530 11.16 855 6.8 15.2 <0.1 420 120 27.9 18.3 1.84 

* 1535 11.16 855 6.8 15.2 <.1 440 129 29.0 18.7 1.75 

09-02-99 1410 -- 838 7.0 14.9 <.1 470 137 30.0 19.4 1.80 

* 1415 -- 838 7.0 14.9 <.1 470 138 30.1 19.1 1.84 

03-02-00 0820 12.49 775 6.6 13.8 <.1 390 112 26.1 17.7 1.70 

* 0825 12.49 775 6.6 13.8 <.1 390 112 26.0 17.6 1.74 

08-22-00 1420 12.83 758 6.9 16.9 <.1 370 107 25.1 17.8 1.60 

* 1425 12.83 758 6.9 16.9 <.1 370 108 24.7 16.7 1.78 

02-21-01 0820 11.52 756 6.9 13.5 <.1 400 116 26.2 18.2 1.60 

* 0825 11.52 756 6.9 13.5 <.1 -- 117 26.5 18.4 1.59 

08-28-01 1140 11.83 807 7.0 16.1 <.1 420 121 27.5 19.1 1.74 

* 1145 11.83 807 7.0 16.1 <.1 -- 120 27.4 19.6 1.69 

02-28-02 0920 11.72 718 7.0 14.3 <.1 360 106 23.1 17.1 1.62 

* 0925 11.72 718 7.0 14.3 <.1 -- -- -- -- -- 

08-20-02 1130 11.91 729 7.1 16.6 <.1 350 102 22.4 17.9 1.70 

* 1135 11.91 729 7.1 16.6 <.1 -- -- -- -- -- 

04-02-03 1530 11.35 731 7.0 15.5 <.1 -- -- -- -- -- 08-28-03 0920 13.22 745 7.0 15.7 <.1 -- -- -- -- -- 02-26-04 1030 11.28 787 7.0 14.4 -- 420 124 27.4 19.8 1.90 

* 1035 11.28 787 7.0 14.4 -- -- 118 26.9 19.4 1.7 

08-24-04 1130 12.14 827 7.2 15.2 -- 460 135 29.4 20.3 1.88 03-02-05 1345 10.57 810 6.8 15.1 -- 450 132 29.1 17.9 1.81 08-03-05 1400 12.62 810 7.0 14.6 -- 424 125 27.0 17.7 1.60 

MW1-4B (measuring point altitude 583.53 feet above NGVD 29)

06-01-99 1430 15.92 712 6.8 15.9 <.1 330 94.1 22.1 17.0 2.92 09-02-99 1320 -- 610 7.2 15.6 <.1 290 85.2 18.3 14.9 4.18 03-02-00 0910 23.46 569 6.8 14.5 <.1 260 77.1 16.7 13.9 3.99 08-22-00 0510 23.29 595 7.1 18.1 <.1 270 79.3 16.7 12.5 4.16 02-21-01 0930 21.26 566 7.2 13.4 <.1 270 80.5 17.2 14.1 3.70 08-28-01 1220 21.69 620 7.2 15.0 <.1 290 84.2 18.5 15.0 3.76 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW1-4A 06-01-99 1530 72.8 7.92 0.4 510 <0.010 <0.05 0.17 0.18 0.10 E0.03 

* 1535 72.9 7.13 .4 520 <.010 <.05 .16 .18 .10 .06 

09-02-99 1410 73.4 8.92 .4 538 <.010 <.05 .10 .15 .09 .07 

* 1415 73.8 8.80 .4 540 <.010 <.05 .12 .16 .09 .08 

03-02-00 0820 68.5 6.21 .4 471 <.010 <.05 .10 .16 .08 .07 

* 0825 68.2 5.42 .4 469 <.010 <.05 .10 .18 .07 .08 

08-22-00 1420 53.4 6.56 .4 432 <.010 <.05 .09 .17 .09 .09 

* 1425 53.1 6.57 .3 440 <.010 <.05 .09 .16 .10 .09 

02-21-01 0820 55.8 16.6 .4 458 <.006 <.05 .09 .15 .09 .09 

* 0825 55.7 16.6 .4 -- <.006 <.05 .08 .13 .10 .08 

08-28-01 1140 53.8 15.3 .4 463 <.006 <.05 E.11 .16 .10 .06 

* 1145 51.7 15.2 .4 -- <.006 <.05 E.09 .13 .08 .07 

02-28-02 0920 39.8 8.14 .4 418 <.008 <.05 .08 .15 .10 .08 

* 0925 -- -- -- -- -- <.05 <.21 .14 .09 .09 

08-20-02 1130 32.2 7.11 .4 388 <.008 <.05 .09 .13 .10 .08 

* 1135 -- -- -- -- -- -- -- -- -- -- 

04-02-03 1530 -- 5.95 -- -- -- -- -- -- -- -- 08-28-03 0920 -- 11.4 -- -- -- -- -- -- -- -- 02-26-04 1030 47.7 13.9 .4 401 E.004 <.06 .08 .15 .09 .08 

* 1035 50.1 14.1 .4 -- E.004 <.06 .08 .15 .09 .08 

08-24-04 1130 53.9 14.6 .4 486 <.008 <.06 .09 .17 .12 .06 03-02-05 1345 54.4 8.8 .4 477 <.008 <.06 .09 .16 .09 .06 08-03-05 1400 56.5 7.01 .4 466 <.008 <.06 .09 .15 .10 .08 

MW1-4B 06-01-99 1430 28.2 4.95 .3 424 <.010 <.05 2.33 2.1 .67 <.05 

09-02-99 1320 .3 3.65 .2 384 <.010 <.05 4.03 3.4 1.20 .72 03-02-00 0910 <.3 2.60 .2 -- <.010 <.05 3.63 4.0 1.33 .39 08-22-00 0510 <.3 3.03 .2 -- <.010 <.05 3.50 4.1 1.33 1.45 02-21-01 0930 E.1 2.54 .2 -- <.006 <.05 3.50 3.8 1.23 .98 08-28-01 1220 .6 3.17 .2 330 <.006 <.05 E3.52 3.7 1.28 .90 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] 

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW1-4B (measuring point altitude 583.53 feet above NGVD 29)—Continued

02-28-02 0830 22.77 596 7.1 14.1 <0.1 270 81.2 17.0 13.4 3.73 08-20-02 1030 21.98 644 7.2 16.6 <.1 280 83.6 17.5 14.0 3.79 02-26-04 1120 21.87 580 7.2 14.4 <.1 290 87.4 18.1 14.9 3.98 08-24-04 1230 22.25 610 7.3 16.3 -- 300 89.5 18.3 15.0 4.04 03-02-05 1415 20.10 699 7.1 14.9 -- 390 112 26.0 17.8 2.17 08-03-05 1410 23.11 587 7.1 14.8 -- 296 88.6 18.1 15.1 3.46 

MW2-1A (measuring point altitude 576.89 feet above NGVD 29)

06-02-99 1300 12.64 821 6.9 15.1 <.1 440 130 28.4 5.71 3.15 08-27-99 0810 18.88 744 6.7 14.7 <.1 430 125 28.2 4.56 2.36 02-29-00 1520 23.38 664 6.9 15.8 <.1 380 111 25.6 4.26 2.34 08-29-00 1320 22.28 787 6.9 16.2 <.1 440 129 29.2 5.69 2.88 03-01-01 0930 21.19 770 7.0 14.6 <.1 410 120 25.5 5.97 3.29 08-23-01 0830 21.52 797 6.9 14.3 <.1 440 128 28.7 5.15 2.86 02-27-02 0910 24.17 740 7.0 15.0 <.1 400 117 25.5 4.43 2.72 08-22-02 0900 23.14 757 7.0 15.7 <.1 400 120 25.7 4.95 2.55 02-26-04 0920 24.83 767 7.0 15.1 -- 460 135 28.8 5.38 3.05 

08-25-04 1535 22.45 798 7.0 16.3 -- 460 136 29.2 5.29 3.11 03-04-05 1245 22.39 702 6.9 15.5 -- 400 117 25.2 4.78 2.65 08-04-05 1050 23.58 702 6.9 14.4 -- 383 113 24.4 4.51 2.43 

MW2-1B (measuring point altitude 576.67 feet above NGVD 29)

06-02-99 1400 12.42 885 7.0 14.9 <.1 450 129 29.7 10.6 5.15 08-27-99 0900 18.69 830 6.8 14.6 <.1 450 131 29.8 9.96 4.96 02-29-00 1600 23.19 732 6.9 15.1 <.1 390 113 26.7 8.76 5.16 08-29-00 1400 22.09 827 7.0 15.7 .1 500 140 35.9 9.82 4.85 03-01-01 1010 21.00 871 7.0 13.6 <.1 430 125 28.4 9.38 5.17 08-23-01 0930 21.31 915 7.0 15.6 <.1 460 133 31.4 10.9 5.31 02-27-02 0830 23.98 878 7.0 13.9 <.1 430 125 29.1 10.3 5.34 02-26-04 0840 23.30 899 7.0 14.5 <.1 490 142 32.1 11.2 5.18 08-25-04 1615 20.89 938 7.1 16.1 -- 510 150 32.7 12.2 5.74 03-04-05 1315 20.87 926 7.0 15.0 -- 520 153 34.4 12.8 6.23 08-04-05 1045 22.06 871 6.9 14.5 -- 467 137 30.4 11.4 5.46 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW1-4B—Continued 02-28-02 0830 0.2 3.65 0.2 330 <0.008 <0.05 3.60 4.0 1.31 1.25 

08-20-02 1030 .1 3.30 .2 339 <.008 <.05 3.55 4.1 1.50 1.49 02-26-04 1120 <.2 3.39 .2 -- E.004 <.06 .34 4.3 1.36 1.27 08-24-04 1230 .4 2.41 .2 339 <.008 <.06 3.62 4.0 1.41 1.27 03-02-05 1415 31.1 5.14 .3 410 E.004 E.06 .91 1.1 .38 .09 08-03-05 1410 .9 2.62 .2 345 E.005 <.06 3.13 3.6 1.35 .82 

MW2-1A 06-02-99 1300 9.3 6.88 .3 484 <.010 <.05 .09 .12 E.03 <.05 

08-27-99 0810 15.3 6.79 .3 460 <.010 .13 <.02 .10 <.05 <.05 02-29-00 1520 14.3 6.33 .3 411 <.010 .11 <.02 E.09 <.05 <.05 08-29-00 1320 11.2 6.53 .3 453 <.010 <.05 .02 E.06 <.05 <.05 03-01-01 0930 7.8 7.44 .4 437 <.006 <.05 .06 .10 <.06 <.06 08-23-01 0830 9.8 6.80 .3 400 <.006 E.04 E.03 .08 <.06 <.06 02-27-02 0910 12.1 6.72 .4 419 <.008 E.04 E.03 .13 <.06 <.06 08-22-02 0900 9.6 5.37 .3 391 <.008 .05 E.03 E.10 <.06 <.06 02-26-04 0920 14.5 5.70 .4 365 E.004 E.03 <.04 E.09 E.02 <.04 08-25-04 1535 13.7 3.98 .3 414 <.008 E.04 <.04 E.09 <.04 E.02 03-04-05 1245 9.5 2.87 .4 386 <.008 <.06 <.04 E.06 <.04 <.04 08-04-05 1050 9.2 2.27 .3 387 <.008 E.04 <.04 .11 <.04 <.04 

MW2-1B 06-02-99 1400 11.0 8.81 .2 527 .037 <.05 .59 .55 .64 .47 

08-27-99 0900 9.3 7.37 .2 521 .010 <.05 .47 .64 .69 .47 02-29-00 1600 4.0 6.19 .2 447 <.010 <.05 .43 .53 .60 .24 08-29-00 1400 .6 5.35 .2 492 .017 <.05 .44 .56 .64 <.05 03-01-01 1010 .4 6.50 .3 489 <.006 <.05 .45 .56 .55 .56 08-23-01 0930 .4 5.94 .2 436 E.004 <.05 .48 .64 .65 .52 02-27-02 0830 1.1 6.78 .3 487 .026 <.05 .48 .62 .66 .33 02-26-04 0840 <.2 6.21 .3 -- E.048 <.60 .41 .60 .64 .59 08-25-04 1615 <.2 5.38 .3 -- <.008 <.06 .53 .61 .63 .54 03-04-05 1315 <.2 5.40 .3 -- <.008 <.06 .48 .62 .64 .22 08-04-05 1045 <.2 5.54 .3 -- <.008 <.06 .47 .61 .64 .20 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW3-1A (measuring point altitude 572.53 feet above NGVD 29)

06-02-99 1440 7.34 873 7.0 15.6 <0.1 440 137 23.6 6.56 5.03 09-01-99 0900 -- 835 7.0 15.0 <.1 460 145 24.7 6.63 4.54 

03-08-00 0930 17.32 778 6.7 16.3 <.1 410 128 21.7 6.41 4.45 08-24-00 1040 16.33 747 7.0 16.2 <.1 390 122 20.6 7.41 4.51 02-22-01 1600 17.84 -- 7.1 14.8 <.1 410 129 21.7 7.92 4.91 

08-23-01 1100 15.81 791 7.2 15.5 <.1 410 129 21.7 8.96 4.55 02-27-02 1040 18.65 743 7.1 14.6 <.1 390 122 19.8 8.31 4.27 08-22-02 1340 17.74 774 7.1 17.1 <.1 390 124 20.1 8.63 4.04 04-01-03 1650 19.74 831 7.0 15.2 <.1 -- -- -- -- -- 08-27-03 1430 19.61 1,000 6.9 15.9 <.1 -- -- -- -- -- 02-25-04 1540 19.52 1,010 7.0 13.8 -- 520 157 31.0 8.85 6.14 08-26-04 1340 16.35 844 6.8 17.0 -- 480 152 23.4 9.34 4.62 03-04-05 1405 16.38 914 6.9 15.1 -- 510 164 25.1 9.49 5.04 08-04-05 1210 18.02 957 6.9 14.4 -- 530 169 26.3 8.99 4.74 

MW3-1B (measuring point altitude 572.51 feet above NGVD 29)

06-02-99 1530 7.31 847 7.1 15.4 <.1 440 129 28.3 7.62 4.18 09-01-99 0810 -- 807 7.0 14.7 <.1 430 126 27.3 7.36 4.27 

03-08-00 1030 17.32 775 6.8 15.7 <.1 390 115 25.6 6.93 4.19 08-24-00 1130 16.31 802 7.0 16.0 <.1 410 120 26.0 7.06 4.64 02-22-01 1640 17.88 -- 7.1 14.0 <.1 460 137 29.5 7.41 4.42 

08-23-01 1140 15.85 915 7.2 15.9 <.1 470 140 29.8 7.93 4.74 02-27-02 1000 18.68 903 7.1 13.7 <.1 460 137 28.1 7.60 4.57 08-22-02 1430 17.78 967 7.1 17.0 <.1 490 147 29.3 8.23 4.35 02-25-04 1620 19.55 826 7.0 14.4 <.1 460 147 23.4 8.63 4.71 08-26-04 1415 16.37 1,020 6.9 16.1 -- 550 168 31.1 9.51 5.10 

* 1420 16.37 -- 6.9 -- -- -- 161 31.5 9.56 5.09 

03-04-05 1435 16.44 1,120 7.0 14.7 -- 570 173 33.7 10.9 5.23 08-04-05 1215 18.06 1,060 6.9 14.3 -- 553 168 32.5 11.0 5.23 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW3-1A 06-02-99 1440 40.8 11.8 0.3 512 <0.010 <0.05 0.06 0.13 E0.04 <0.05 

09-01-99 0900 43.1 9.30 .3 522 <.010 <.05 <.02 E.07 <.05 <.05 03-08-00 0930 60.1 11.6 .3 464 <.010 <.05 .03 .14 <.05 E.03 08-24-00 1040 59.4 12.2 .3 435 <.010 <.05 <.02 .10 <.05 <.05 02-22-01 1600 61.0 9.27 .3 462 <.006 <.05 <.04 .09 E.03 E.04 08-23-01 1100 54.0 8.30 .3 415 <.006 <.05 E.02 .12 <.06 <.06 02-27-02 1040 46.4 7.44 .3 432 <.008 <.05 E.02 .11 E.05 <.06 08-22-02 1340 44.9 7.91 .3 420 <.008 <.05 <.04 E.09 <.06 <.06 04-01-03 1650 -- 7.91 -- -- -- -- -- -- -- -- 08-27-03 1430 -- 25.6 -- -- -- -- -- -- -- -- 02-25-04 1540 28.8 46.2 .2 436 -- -- -- -- -- -- 08-26-04 1340 35.6 7.01 .3 457 <.008 <.06 E.02 .14 .05 E.04 03-04-05 1405 52.0 7.79 .3 582 <.008 <.06 <.04 E.09 .04 E.03 08-04-05 1210 55.4 11.2 .3 562 <.008 <.06 <.04 E.09 E.03 E.03 

MW3-1B 06-02-99 1530 23.1 5.64 .2 511 .040 <.05 .55 .47 .48 .50 

09-01-99 0810 20.8 5.93 .2 503 .010 <.05 .38 .41 .47 .38 03-08-00 1030 26.2 5.08 .2 449 .010 <.05 .37 .50 .47 E.03 08-24-00 1130 21.6 4.84 .2 375 .020 <.05 .35 .42 .48 .48 02-22-01 1640 21.6 5.25 .3 511 <.006 <.05 .35 .48 .48 .57 08-23-01 1140 22.0 5.70 .2 448 E.023 E.03 E.40 .49 .48 .39 02-27-02 1000 20.7 5.01 .3 512 .020 <.05 .41 .48 .49 .42 08-22-02 1430 21.0 6.73 .2 495 .020 <.05 .41 .48 .51 .52 02-25-04 1620 37.9 7.73 .3 391 -- -- -- -- -- -- 08-26-04 1415 29.4 33.9 .2 577 <.008 <.06 .41 .52 .51 .14 

* 1420 29.3 33.9 .2 -- <.008 <.06 .40 .53 .49 .21 

03-04-05 1435 52.6 99.4 .3 677 <.008 <.06 .38 .54 .37 .22 08-04-05 1215 54.7 98.7 .2 631 <.008 <.06 .37 .53 .44 E.02 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW4-1A (measuring point altitude 572.66 feet above NGVD 29)

06-02-99 0810 6.07 958 6.9 14.0 <0.1 470 127 36.7 9.18 5.55 08-31-99 1300 -- 889 7.1 14.1 <.1 490 137 36.4 7.50 5.17 03-01-00 1530 15.49 899 6.9 13.8 <.1 450 121 35.0 14.6 5.80 08-25-00 1030 15.29 901 7.0 15.1 <.1 410 114 31.3 17.8 5.60 02-23-01 0800 16.53 -- 7.0 13.0 <.1 460 129 34.2 14.9 5.46 08-22-01 0840 14.36 965 6.9 15.1 <.1 500 138 36.9 15.9 5.41 02-26-02 1420 17.01 959 7.0 13.2 <.1 470 133 32.6 15.9 5.64 08-21-02 1130 17.20 996 7.1 16.0 <.1 530 151 36.2 15.5 5.32 04-02-03 0950 18.41 969 7.1 14.7 <.1 -- -- -- -- -- 08-27-03 1230 18.66 1.030 7.1 15.6 <.1 -- -- -- -- -- 02-25-04 1440 18.47 1,060 7.0 13.5 <.1 510 147 35.0 20.2 6.16 08-26-04 1210 15.09 1,080 6.9 16.3 -- 550 163 35.4 19.3 6.17 03-04-05 0945 14.48 1,070 7.0 14.3 -- 550 164 34.9 19.4 6.13 08-04-05 1340 16.99 1,020 7.4 20.1 -- 534 158 34.0 14.2 5.61 

MW4-1B (measuring point altitude 572.48 feet above NGVD 29)

06-02-99 0915 5.91 798 7.1 14.4 0.4 390 106 29.1 10.8 3.94 08-31-99 1350 -- 759 7.1 14.3 <.1 380 107 27.6 14.6 4.05 03-01-00 1610 15.36 776 7.0 13.2 <.1 350 96.6 27.1 15.9 4.39 08-25-00 1120 15.13 873 7.0 14.9 <.1 400 110 30.4 12.2 4.67 02-23-01 0810 16.47 -- 7.1 12.8 <.1 420 116 30.9 13.7 4.28 08-22-01 0920 14.29 876 7.0 14.9 <.1 420 115 31.4 14.2 4.50 02-26-02 1510 16.86 993 7.1 13.0 <.1 450 127 32.9 15.5 4.90 08-21-02 1230 16.99 1,110 7.1 16.0 <.1 510 144 36.6 24.3 5.01 02-25-04 1400 18.33 1,270 7.0 13.4 <.1 500 141 34.8 66.5 5.82 08-26-04 1255 14.86 1,380 7.0 16.0 -- 460 132 31.8 90.6 6.04 03-04-05 1020 14.49 1,320 7.1 14.3 -- 480 137 34.3 90.3 6.32 08-04-05 1330 16.95 1,250 7.1 14.2 -- 423 122 28.6 95.0 5.57 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW4-1A 06-02-99 0810 88.8 14.1 0.2 577 0.022 <0.05 0.97 0.96 0.47 0.08 

08-31-99 1300 60.9 10.7 .2 568 .020 .23 .74 .84 .30 .29 03-01-00 1530 74.0 12.6 .2 539 .015 <.05 .81 .99 .52 <.05 08-25-00 1030 94.7 18.7 .2 514 .011 <.05 .80 .92 .49 .25 02-23-01 0800 61.9 9.64 .2 543 E.004 <.05 .87 1.0 .52 .51 08-22-01 0840 61.9 11.6 .2 533 .008 E.02 .89 .95 .45 .53 02-26-02 1420 60.1 11.8 .2 563 .023 <.05 .93 1.0 .50 .56 08-21-02 1130 58.0 11.3 .2 594 .017 <.05 .91 1.1 .52 .56 04-02-03 0950 -- 12.3 -- -- -- -- -- -- -- -- 08-27-03 1230 -- 17.0 -- -- -- -- -- -- -- -- 02-25-04 1440 80.8 23.7 .2 571 E.052 <.60 .77 1.1 .62 .58 08-26-04 1210 77.9 19.3 .2 627 <.008 <.06 .88 1.0 .59 .09 03-04-05 0945 67.7 20.8 .2 643 <.008 <.06 .78 .96 .60 .36 08-04-05 1340 58.5 14.5 .2 630 <.008 <.06 .78 .98 .52 .34 

MW4-1B 06-02-99 0915 122 18.4 .2 503 0.034 <.05 .98 .95 .80 <.05 

08-31-99 1350 121 19.8 .2 508 .057 <.05 .84 .83 .79 .80 03-01-00 1610 97.8 15.4 .2 461 .027 <.05 .85 1.0 .83 <.05 08-25-00 1120 69.4 21.0 .2 494 .019 <.05 .89 .99 .83 .33 02-23-01 0810 76.5 17.9 .2 505 E.003 <.05 .87 .99 .84 1.03 08-22-01 0920 83.1 24.6 .2 513 E.041 E.04 E.95 1.0 .82 E.88 02-26-02 1510 72.5 63.3 .2 563 .044 <.05 1.07 1.1 .81 .76 08-21-02 1230 71.2 105 .2 624 .066 <.05 1.11 1.2 .79 .84 02-25-04 1400 61.1 163 .2 644 .083 <.60 .88 1.2 .81 .71 08-26-04 1255 68.3 188 .2 735 <.008 <.06 1.11 1.2 .74 .25 03-04-05 1020 66.1 166 .2 760 <.008 <.06 1.06 1.3 .84 .47 08-04-05 1330 77.9 163 .2 743 <.008 <.06 1.03 1.2 .89 .25 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

MW4-2A (measuring point altitude 572.12 feet above NGVD 29)

06-02-99 1100 5.40 963 7.0 14.8 <0.1 460 137 29.0 10.5 6.52 08-31-99 1500 -- 968 7.0 14.4 <.1 520 156 31.3 9.94 5.80 03-01-00 1340 12.80 1,060 6.9 14.5 <.1 480 142 30.4 31.1 7.36 08-25-00 0840 13.21 1,200 7.0 16.3 .4 470 138 30.1 51.4 7.97 02-23-01 0950 14.32 -- 7.1 14.1 <.1 440 130 27.3 36.6 6.76 08-22-01 1020 12.72 1,140 7.0 16.0 <.1 450 132 28.7 61.7 6.73 02-26-02 1300 14.89 1,180 7.0 15.3 <.1 400 119 24.6 87.4 7.86 08-21-02 1400 15.14 1,240 7.1 16.8 <.1 440 132 26.3 96.5 7.15 04-02-03 0850 16.55 1,140 7.1 16.7 <.1 -- -- -- -- -- 08-27-03 1130 17.17 1,120 7.0 17.2 <.1 -- -- -- -- -- 02-25-04 1110 16.68 1,190 7.0 15.7 <.1 380 115 23.7 101 7.50 08-26-04 1045 13.03 1,260 7.2 17.9 .6 460 138 27.2 91.7 8.07 03-04-05 1115 12.40 1,220 6.9 16.9 .2 450 135 26.9 90.7 8.60 08-04-05 1445 15.62 1,120 7.7 22.7 .5 450 136 27.9 71.6 6.83 

MW4-2B (measuring point altitude 572.14 feet above NGVD 29)

06-02-99 1020 5.39 1,060 6.9 14.7 <.1 490 145 31.4 13.1 5.61 08-31-99 1600 -- 1,050 6.9 14.6 <.1 500 147 31.9 15.9 5.79 03-01-00 1430 12.82 1,010 6.9 14.1 <.1 440 130 28.9 24.3 5.96 08-25-00 0930 13.32 1,110 7.0 16.0 <.1 400 117 26.5 49.8 6.65 02-23-01 1030 14.36 -- 7.1 14.2 <.1 410 121 26.3 88.4 6.52 08-22-01 1100 12.72 1,320 7.1 16.4 <.1 350 101 23.2 123 6.37 02-26-02 1330 14.89 1,260 7.1 14.6 <.1 340 101 21.6 117 6.79 08-21-02 1510 15.15 1,200 7.1 18.7 <.1 330 96.7 20.4 122 6.62 02-25-04 1200 16.67 1,360 7.0 15.3 -- 400 119 23.9 124 7.28 08-26-04 1120 13.06 1,330 7.3 18.1 -- 340 102 19.7 141 7.35 03-04-05 1155 12.43 1,390 7.1 16.1 -- 330 100 19.4 153 7.42 08-04-05 1440 15.66 1,370 7.2 17.1 -- 296 91.2 16.5 162 7.54 

* 1445 15.66 1,370 7.2 17.1 -- 294 90.7 16.4 161 7.33 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

MW4-2A 06-02-99 1100 37.8 19.9 0.2 560 0.023 <0.05 0.68 0.64 0.19 <0.05 

08-31-99 1500 30.8 26.3 .1 598 .049 .46 .49 .55 .10 .11 03-01-00 1340 49.3 71.9 <.1 623 .019 <.05 .59 .75 .22 <.05 08-25-00 0840 48.8 121 .1 652 .019 <.05 .86 .98 .19 .16 02-23-01 0950 37.1 61.1 .2 573 .007 <.05 .70 .80 .26 .24 08-22-01 1020 45.6 106 .2 651 .011 <.05 E.72 .89 .30 .14 02-26-02 1300 59.6 143 .2 683 .027 <.05 1.25 1.30 .37 .38 08-21-02 1400 62.8 142 .3 724 E.007 <.05 1.30 1.40 .40 .47 04-02-03 0850 -- 118 -- -- -- -- -- -- -- -- 08-27-03 1130 -- 111 -- -- -- -- -- -- -- -- 02-25-04 1110 59.0 126 .3 625 E.004 <.06 .08 1.00 .28 .25 08-26-04 1045 57.1 116 .3 661 <.008 <.06 1.11 1.30 .38 .10 03-04-05 1115 45.2 139 .3 766 <.008 <.06 1.07 1.28 .42 .27 08-04-05 1445 39.9 100 .3 648 <.008 .30 .65 .95 .18 .09 

MW4-2B 06-02-99 1020 35.9 71.6 .1 611 .016 <.05 .66 .64 .71 .16 

08-31-99 1600 37.8 98.4 .1 631 .039 <.05 .57 .62 .65 .28 03-01-00 1430 52.9 100 .1 571 .024 <.05 .57 .71 .64 <.05 08-25-00 0930 71.9 107 .2 590 .019 <.05 .65 .76 .69 .30 02-23-01 1030 92.0 218 .2 721 .023 <.05 .70 .86 .67 .64 08-22-01 1100 77.7 204 .2 724 E.037 E.03 E.78 .93 .71 E.68 02-26-02 1330 94.5 183 .2 709 .039 <.05 .77 .94 .72 .58 08-21-02 1510 80.7 123 .2 674 .027 <.05 .77 .92 .78 .84 02-25-04 1200 80.0 215 .3 736 E.065 <.60 .58 .98 .64 .62 08-26-04 1120 86.7 181 .4 721 <.008 <.06 .74 .89 .66 .13 03-04-05 1155 81.3 234 .4 766 <.008 <.06 .65 .89 .59 .06 08-04-05 1440 75.0 232 .5 788 <.008 <.06 .66 .94 .67 .28 

* 1455 74.4 230 .5 783 <.008 <.06 .65 .94 .66 .22 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

USGS-1 (measuring point altitude 570.65 feet above NGVD 29)

08-27-99 1010 10.99 736 7.2 14.1 <0.1 -- 114 20.9 10.2 4.74 02-29-00 1420 14.27 703 7.0 14.9 <.1 -- 122 21.8 6.95 4.97 08-23-00 1250 13.86 811 7.2 16.2 <.1 -- 125 21.9 6.03 5.26 03-01-01 1130 11.22 827 7.1 14.5 <.1 -- 128 21.8 7.09 5.11 08-22-01 1310 13.25 740 7.2 15.9 <.1 -- 122 21.0 7.74 4.77 02-25-02 1530 15.90 884 7.1 14.3 <.1 -- 135 23.3 8.78 5.04 08-22-02 1030 15.09 871 7.0 17.8 <.1 -- 131 22.1 9.94 4.67 

USGS-2S (measuring point altitude 572.68 feet above NGVD 29)

08-26-99 1600 11.56 940 6.7 13.4 <.1 -- 139 25.1 12.3 5.50 02-29-00 0800 10.98 968 6.7 13.0 <.1 -- 112 20.3 51.9 6.55 08-23-00 0850 13.63 1,010 7.1 14.0 <.1 -- 123 22.1 45.8 6.34 02-28-01 1120 8.50 1,040 7.2 14.2 <.1 -- 110 19.7 66.0 6.31 08-21-01 1230 11.54 1,010 7.0 15.5 <.1 -- 137 25.2 31.2 5.73 02-26-02 0840 14.11 1,070 7.0 13.5 <.1 -- 130 22.6 49.8 5.98 

USGS-2D (measuring point altitude 572.56 feet above NGVD 29)

08-26-99 1510 11.42 1,030 6.7 13.4 <.1 -- 102 24.6 44.5 5.95 02-29-00 0850 10.86 1,020 6.7 12.5 <.1 -- 97.9 23.3 85.3 6.41 08-23-00 0930 13.5 1,140 7.1 14.8 <.1 -- 93.2 23.0 87.1 6.74 02-28-01 1100 8.67 1,200 7.3 13.3 <.1 -- 107 24.5 86.3 6.53 08-21-01 1320 11.43 1,180 7.0 15.9 <.1 -- 97.6 23.5 93.9 6.09 02-26-02 0910 13.97 1,210 7.1 13.6 <.1 -- 86.9 19.4 119 6.51 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

USGS-1 08-27-99 1010 71.6 11.1 0.2 -- <0.010 0.14 0.16 0.26 0.16 0.14 

02-29-00 1420 48.9 14.4 .2 -- <.010 <.05 .15 .25 .12 <.05 08-23-00 1250 50.0 21.9 .2 -- <.010 .07 .13 .22 .10 E.04 03-01-01 1130 53.6 35.0 .3 -- <.006 <.05 .21 .24 E.04 .13 08-22-01 1310 56.2 19.0 .2 -- <.030 .28 .91 .26 .13 .13 02-25-02 1530 53.7 58.5 .3 -- E.007 .05 .17 .23 .13 .11 08-22-02 1030 43.1 40.6 .3 -- E.004 .30 .16 .27 .12 .12 

USGS-2S 08-26-99 1600 48.9 26.2 .1 -- .011 <.05 .65 .78 .85 .53 

02-29-00 0800 91.0 92.2 .1 -- .029 <.05 .66 .79 .67 <.05 08-23-00 0850 70.6 51.9 .1 -- <.010 <.05 .60 .78 .69 .67 02-28-01 1120 133 94.2 .2 -- E.004 <.05 .70 1.0 .60 .64 08-21-01 1230 69.9 36.2 .2 -- .021 E.03 .64 .70 .64 .34 02-26-02 0840 99.4 87.2 .2 -- .044 <.05 .80 .87 .67 .57 

USGS-2D 08-26-99 1510 76.3 130 .1 -- <.010 <.05 1.20 1.5 1.13 .49 

02-29-00 0850 105 119 .1 -- .049 <.05 1.21 1.4 1.00 <.05 

08-23-00 0930 83.3 115 .1 -- <.010 <.05 1.14 1.4 1.02 .74 

02-28-01 1100 129 137 .2 -- <.006 <.05 1.17 1.4 .77 .80 

08-21-01 1320 126 125 .2 -- .094 E.12 6.34 1.5 .88 .30 

02-26-02 0910 110 170 .3 -- .058 <.05 1.28 1.4 .83 .60 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

USGS-3S (measuring point altitude 570.28 feet above NGVD 29)

08-26-99 1210 10.38 1,350 7.0 15.1 <0.1 -- 119 19.1 119 6.14 02-29-00 1000 9.46 1,420 6.8 14.0 <.1 -- 132 24.5 146 6.24 08-23-00 1030 12.25 1,440 7.2 15.0 <.1 -- 121 23.6 143 6.72 02-27-01 1350 3.97 1,130 7.2 11.9 <.1 -- 107 20.4 115 4.88 08-21-01 1430 10.55 1,060 7.2 14.3 <.1 -- 82.3 15.5 106 4.46 02-26-02 1050 12.24 1,070 7.3 12.4 <.1 -- 85.3 15.0 117 5.23 08-22-02 1200 13.03 1,180 7.3 15.3 <.1 -- 93.7 15.4 123 5.14 04-01-03 1320 14.23 1,050 7.2 12.5 <.1 -- -- -- -- -- 

USGS-3D (measuring point altitude 570.25 feet above NGVD 29)

08-26-99 1050 10.59 963 6.9 15.1 <.1 -- 129 31.5 19.5 4.92 02-29-00 1040 9.65 890 6.9 13.6 <.1 -- 103 24.9 51.2 4.63 08-23-00 1110 12.42 1,000 7.2 14.3 <.1 -- 121 29.8 27.5 5.05 02-27-01 1300 4.16 1,050 7.3 12.6 <.1 -- 93.9 21.2 100 5.28 08-21-01 1510 10.77 1,130 7.2 13.3 <.1 -- 145 34.1 32.2 5.22 02-26-02 1020 12.49 1,050 7.3 11.6 <.1 -- 103 22.8 75.4 5.21 

USGS-4 (measuring point altitude 575.51 feet above NGVD 29)

08-25-99 1630 15.40 1,060 6.6 14.2 <.1 -- 164 37.2 13.6 6.12 03-01-00 1000 16.75 885 6.9 13.6 <.1 -- 121 29.8 11.8 5.63 08-23-00 1510 17.67 652 6.9 15.8 <.1 -- 126 30.3 12.4 5.94 02-22-01 1440 16.91 955 7.0 13.6 <.1 -- 128 29.6 16.0 5.19 08-22-01 1420 16.83 963 7.1 15.4 <.1 -- 136 31.2 15.0 5.63 02-25-02 1430 18.97 1,020 6.9 13.8 <.1 -- 134 30.0 21.4 5.76 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

USGS-3S 08-26-99 1210 106 221 0.3 -- <0.010 <0.05 0.17 0.01 0.41 0.22 

02-29-00 1000 128 247 .3 -- .021 <.05 .26 .62 .35 <.05 08-23-00 1030 109 214 .3 -- .012 <.05 .14 .37 .19 .11 02-27-01 1350 130 136 .3 -- E.003 <.05 .17 .36 .25 .15 08-21-01 1430 80.1 139 .3 -- E.004 <.05 E.19 .36 .28 .14 02-26-02 1050 136 113 .4 -- .012 <.05 .20 .41 .29 .20 08-22-02 1200 129 114 .4 -- .009 <.05 .24 .40 .20 .20 04-01-03 1320 -- 90.5 -- -- -- -- -- -- -- -- 

USGS-3D 08-26-99 1050 30.5 18.8 .2 -- -- -- -- -- -- -- 

02-29-00 1040 90.2 84.1 .2 -- .018 <.05 .60 .79 .59 <.05 08-23-00 1110 82.9 71.5 .2 -- <.010 <.05 .59 .79 .61 .52 02-27-01 1300 70.5 102 .3 -- <.006 <.05 .73 .96 .60 .45 08-21-01 1510 85.5 94.5 .2 -- .017 E.02 .76 .91 .52 E.61 02-26-02 1020 100 104 .3 -- .037 <.05 .84 .96 .52 .41 

USGS-4 08-25-99 1630 24.4 9.3 .2 -- <.010 <.05 .43 .61 .46 .36 

03-01-00 1000 40.9 26.5 .1 -- .018 <.05 .37 .47 .41 .14 08-23-00 1510 40.5 40.1 .2 -- .01 <.05 .31 .43 .41 .19 02-22-01 1440 77.7 73.1 .2 -- <.006 <.05 .34 .45 .39 .17 08-22-01 1420 72.9 59.1 E.2 -- <.010 <.09 .67 .44 .39 E.43 02-25-02 1430 77.6 67.5 .2 -- .032 <.05 .31 .44 .42 .36 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

USGS-5S (measuring point altitude 571.98 feet above NGVD 29)

08-31-99 1010 -- 898 7.0 14.4 <0.1 -- 137 29.5 11.8 5.00 03-01-00 1130 9.06 1,020 6.9 13.0 <.1 -- -- -- -- -- 08-24-00 0850 12.78 883 7.0 15.3 <.1 -- 131 26.2 12.0 4.79 02-22-01 0900 6.81 977 6.9 13.4 <.1 -- 147 28.7 12.9 4.72 08-22-01 1530 10.10 966 7.1 15.2 <.1 -- 150 29.2 11.9 4.82 02-27-02 1240 12.31 982 7.0 13.5 <.1 -- 154 27.9 11.6 4.78 08-19-02 1420 12.62 953 7.0 15.1 <.1 -- 146 26.4 13.0 4.69 04-01-03 1540 13.61 955 6.9 13.9 <.1 -- -- -- -- -- 

USGS-5D (measuring point altitude 571.94 feet above NGVD 29)

08-31-99 0920 -- 1,100 7.1 14.4 <.1 -- 141 28.2 34.3 5.83 03-01-00 1200 9.02 941 6.8 13.3 <.1 -- -- -- -- -- 08-24-00 0940 12.74 1,040 7.1 15.1 <.1 -- 113 24.6 55.0 5.24 02-22-01 0940 6.78 1,170 7.1 13.6 <.1 -- 108 22.6 87.3 5.20 08-22-01 1610 10.06 1,130 7.3 15.0 <.1 -- 99.0 21.7 94.7 4.83 02-27-02 1330 12.28 985 7.3 13.1 <.1 -- 78.2 15.8 98.4 4.98 08-19-02 1500 12.56 1,190 7.1 15.5 <.1 -- 112 21.6 89.7 5.93 

USGS-6 (measuring point altitude 570.71 feet above NGVD 29)

08-31-99 0810 -- 1,250 7.0 13.6 <.1 -- 122 27.3 87.7 6.02 03-02-00 1030 13.61 1,240 6.5 14.4 <.1 -- 117 25.8 97.8 7.00 08-23-00 1610 14.11 1,360 7.0 14.8 <.1 -- 123 27.3 90.3 7.00 02-22-01 1040 11.10 1,270 6.9 14.8 <.1 -- 115 25.2 103 6.32 08-24-01 0900 14.46 1,340 7.0 14.1 <.1 -- 114 25.6 108 6.09 02-25-02 1620 15.46 1,270 6.9 14.7 <.1 -- 116 24.8 103 6.25 08-19-02 1300 14.25 1,340 7.0 14.6 <.1 -- 117 25.2 109 5.99 04-01-03 1440 16.08 1,190 7.0 14.9 <.1 -- -- -- -- -- 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

USGS-5S 08-31-99 1010 39.2 33.4 0.2 -- <0.010 <0.05 0.04 E0.09 <0.05 <0.05 

03-01-00 1130 141 108 .2 -- <.010 <.05 .03 E.10 <.05 <.05 08-24-00 0850 45.5 40.7 .2 -- <.010 <.05 .04 .13 <.05 <.05 02-22-01 0900 57.8 62.9 .2 -- <.006 <.05 E.03 .11 <.06 <.06 08-22-01 1530 67.6 76.8 .2 -- <.006 <.05 .04 .13 <.06 <.06 02-27-02 1240 69.5 65.0 .2 -- <.008 <.05 E.03 .11 <.06 <.06 08-19-02 1420 56.8 60.4 .2 -- <.008 <.05 E.04 .10 <.06 <.06 04-01-03 1540 -- 54.6 -- -- USGS-5D 08-31-99 0920 82.7 119 .2 -- 0.02 <.05 .81 .92 .47 .43 03-01-00 1200 60.7 77.3 .1 -- .019 <.05 .65 .81 0.42 <.05 08-24-00 0940 84 104 .2 -- .025 <.05 .64 .76 .47 .39 02-22-01 0940 114 167 .3 -- E.005 <.05 .67 .79 .38 .11 08-22-01 1610 122 134 .2 -- .014 E.03 .71 .88 .44 .38 02-27-02 1330 82.6 106 .3 -- .016 <.05 .67 .80 .47 .46 08-19-02 1500 112 145 .2 -- .032 <.05 .78 .91 .48 .49 

USGS-6 08-31-99 0810 93.6 179 .2 -- .026 <.05 .90 .93 .61 .74 

03-02-00 1030 150 131 .2 -- .023 <.05 .88 1.2 .73 .10 08-23-00 1610 113 176 .2 -- <.010 <.05 .94 1.2 .71 .09 02-22-01 1040 135 136 .3 -- .011 <.05 1.01 1.2 .66 .59 08-24-01 0900 105 183 .2 -- .018 E.03 1.01 1.3 .64 E.57 02-25-02 1620 130 118 .3 -- .024 <.05 .91 1.3 .68 .78 08-19-02 1300 110 169 .2 -- .030 <.05 1.13 1.4 .73 .70 04-01-03 1440 -- 121 -- -- -- -- -- -- -- -- 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

USGS-7 (measuring point altitude 571.28 feet above NGVD 29)

08-25-99 1510 13.33 1,130 6.7 9.7 <0.1 -- 85.0 19.2 111 5.03 

* 1515 13.33 1,130 6.7 9.7 <.1 -- 84.4 19.3 111 4.96 

03-1-00 0850 15.92 1,000 7.1 9.5 <.1 -- 67.5 15.9 120 4.38 

* 0855 15.92 1,000 7.1 9.5 <.1 -- 67.3 15.9 119 4.41 

08-23-00 1400 16.03 925 7.4 13.6 <.1 -- 63.9 14.2 100 4.91 

* 1405 16.03 925 7.4 13.6 <.1 -- 62.1 14.2 101 4.97 

02-22-01 1050 15.28 1,010 7.3 11.0 <.1 -- 69.2 14.3 109 4.41 

* 1055 15.28 1,010 7.3 11.0 <.1 -- 69.2 14.4 109 4.43 

08-21-01 1630 15.91 998 7.3 14.3 <.1 -- 73.0 15.2 111 5.10 

* 1635 15.91 998 7.3 14.3 <.1 -- 69.3 15.2 108 5.05 

02-25-02 1320 17.38 1,010 7.4 10.8 <.1 -- 78.0 15.3 104 5.15 

* 1325 17.38 1,010 7.4 10.8 <.1 -- 77.3 15.3 104 5.02 

USGS-8S (measuring point altitude 574.68 feet above NGVD 29)

06-04-99 0830 9.69 780 6.9 14.9 0.2 -- 117 23.2 5.07 8.05 09-01-99 1000 -- 788 7.0 14.7 <.1 -- 126 25.3 5.19 8.52 03-08-00 0810 24.42 714 6.9 15.3 <.1 -- 113 21.3 4.87 5.70 08-29-00 1230 20.72 749 7.0 16.7 0.2 -- 124 23.1 5.38 5.65 02-21-01 1440 22.91 791 6.9 13.9 0.2 -- 126 24.2 4.95 5.71 08-23-01 1330 20.68 821 7.1 15.6 0.4 -- 135 26.0 5.26 6.63 02-27-02 1430 22.57 751 7.2 14.2 <.1 -- 121 22.5 4.62 5.69 08-19-02 1610 23.15 836 7.0 16.2 0.9 -- 139 24.4 5.21 6.40 

USGS-8D (measuring point altitude 574.51 feet above NGVD 29)

06-04-99 0920 9.85 815 7.0 16 <.1 -- 119 26.4 9.77 6.75 09-01-99 1050 -- 804 7.1 14.8 <.1 -- 119 25.9 12.1 6.78 03-08-00 0840 24.88 765 7.0 15.3 <.1 -- 111 24.2 11.1 7.24 08-29-00 1150 20.57 770 7.1 16.2 <.1 -- 116 25.5 14.8 6.98 02-21-01 1530 22.98 796 7.0 13.8 <.1 -- 117 25.3 13.2 6.81 08-23-01 1420 21.35 814 7.3 15.7 <.1 -- 117 25.1 14.6 7.45 02-27-02 1510 22.40 749 7.2 13.7 <.1 -- 109 22.7 14.3 6.53 08-19-02 1650 23.51 782 7.1 16.6 <.1 -- 115 23.8 14.0 6.94 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

USGS-7 08-25-99 1510 116 157 0.3 -- <0.010 <0.05 0.77 1.1 0.37 0.37 

* 1515 115 155 .3 -- -- -- -- -- -- -- 

03-01-00 0850 180 89.9 .3 -- <.010 <.05 .53 .77 .28 <.05 

* 0855 181 90.3 .3 -- <.010 <.05 .52 .74 .30 <.05 

08-23-00 1400 161 85.3 .4 -- <.010 <.05 .49 .70 .29 .16 

* 1405 151 77.0 .4 -- <.010 <.05 .48 .72 .29 .21 

02-22-01 1050 156 99.5 .6 -- E.003 <.05 .37 .55 .24 .14 

* 1055 156 98.9 .6 -- E.004 <.05 .37 .56 .24 .16 

08-21-01 1630 156 99.8 .5 -- <.006 <.05 E.46 .72 .17 .11 

* 1635 156 101 .5 -- <.006 <.05 E.44 .66 .18 .12 

02-25-02 1320 154 91.6 .5 -- .008 <.05 .31 .43 .23 .19 

* 1325 154 91.7 .5 -- .009 <.05 .35 .48 .26 .22 

USGS-8S 06-04-99 0830 37.8 6.36 .3 -- .049 2.33 .06 .12 <.05 <.05 

09-01-99 1000 34.7 7.22 .3 -- .018 .78 <.02 E.09 E.04 <.05 03-08-00 0810 42.4 6.20 .2 -- .064 3.30 .02 .15 <.05 <.05 08-29-00 1230 56.5 4.56 .2 -- .052 1.79 <.02 E.07 <.05 <.05 02-21-01 1440 42.9 4.03 .3 -- .053 2.47 <.04 .09 <.06 <.06 08-23-01 1330 43.2 4.79 .3 -- .021 .98 E.02 .10 <.06 <.06 02-27-02 1430 40.5 4.26 .3 -- .066 4.93 <.04 .13 E.03 <.06 08-19-02 1610 30.9 3.71 .3 -- .033 1.99 <.04 E.10 <.06 <.06 

USGS-8D 06-04-99 0920 35.6 5.30 .2 -- .021 <.05 .20 .24 .41 .39 

09-01-99 1050 19.2 10.1 .3 -- .01 <.05 .12 .19 .36 .31 03-08-00 0840 36.9 7.23 .3 -- <.010 <.05 .11 .22 .30 E.05 08-29-00 1150 32.8 8.46 .3 -- .014 <.05 .14 .27 .46 E.04 02-21-01 1530 34.6 7.26 .3 -- E.003 <.05 .10 .20 .39 .21 08-23-01 1420 24.8 9.73 .3 -- .008 E.03 .12 .23 .38 E.34 02-27-02 1510 36.7 9.91 .3 -- .017 <.05 .18 .25 .44 .39 08-19-02 1650 31.9 7.92 .3 -- .012 <.05 .15 .23 .41 .43 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

USGS-9S (measuring point altitude 582.05 feet above NGVD 29)

06-03-99 1510 11.67 676 7.1 14.6 0.4 -- 98.7 21.9 8.54 2.38 09-01-99 1340 -- 658 7.2 14.1 >1.0 -- 103 22.7 7.08 1.97 03-03-00 0810 24.89 665 7.1 14.7 .8 -- 98.0 22.6 5.78 2.23 08-22-00 1620 23.49 652 7.0 15.2 >1.0 -- 99.2 21.7 8.02 2.43 02-20-01 1330 25.25 650 7.0 14.2 .5 -- 109 22.7 7.14 2.20 08-23-01 1540 20.42 675 7.3 15.1 >1.0 -- 105 22.8 7.40 2.06 03-06-02 0900 26.09 787 7.0 14.7 >1.0 113 25.0 5.72 2.34 08-21-02 0950 24.49 744 7.2 15.6 >1.0 -- 117 25.0 6.21 2.27 

USGS-9D (measuring point altitude 582.16 feet above NGVD 29)

06-03-99 1610 11.74 621 7.1 15.2 <.1 -- 87.5 17.7 9.01 2.08 

* 1615 11.74 621 7.1 15.2 <.1 -- 89.0 17.8 8.95 2.10 

09-01-99 1250 -- 624 7.1 14.4 <.1 -- 90.9 18.6 8.89 1.92 

* 1255 -- 624 7.1 14.4 <.1 -- 92.2 18.4 8.99 1.09 

03-03-00 0850 24.95 592 7.2 14.3 <.1 -- -- -- -- -- 

* 0855 24.95 592 7.2 14.3 <.1 -- -- -- -- -- 

08-22-00 1710 23.57 627 7.1 15.8 <.1 -- 90.1 17.8 8.60 2.19 

* 1715 23.57 627 7.1 15.8 <.1 -- 91.4 18.0 8.62 2.17 

02-20-01 1450 25.33 573 7.0 13.9 <.1 -- 89.0 17.2 8.98 1.85 

* 1455 25.33 573 7.0 13.9 <.1 -- 89.5 17.3 9.02 1.87 

08-23-01 1630 20.54 681 7.1 15.0 <.1 -- 100 19.8 10 2.03 

* 1635 20.54 681 7.1 15.0 <.1 -- 100 19.9 9.88 2.20 

03-06-02 1000 26.19 635 7.1 14.0 <.1 -- 93.2 18.2 9.48 2.10 

* 1005 26.19 635 7.1 14.0 <.1 -- -- -- -- -- 

08-21-02 0850 24.58 670 7.1 15.6 <.1 -- 103 19.5 9.93 2.28 

* 0855 24.58 670 7.1 15.6 <.1 -- 103 19.7 10 2.12 

04-01-03 1100 28.30 608 7.0 14.5 <.1 -- -- -- -- -- 

* 1105 28.30 608 7.0 14.5 <.1 -- -- -- -- -- 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

USGS-9S 06-03-99 1510 46.6 4.37 0.1 -- <0.010 0.24 0.04 E0.10 0.10 0.10 

09-01-99 1340 50 4.90 .1 -- <.010 1.00 <.02 <.10 .12 .13 03-03-00 0810 58.9 7.70 .2 -- <.010 1.62 <.02 E.07 .18 .18 08-22-00 1620 56.8 4.10 .1 -- .011 .21 <.02 E.05 .11 .10 02-20-01 1330 55.1 3.25 .2 -- .008 .24 <.04 <.08 .12 .10 08-23-01 1540 48.2 4.96 .2 -- .008 .89 0.05 .11 .07 .08 03-06-02 0900 55.4 49.0 .2 -- E.004 1.04 E.03 <.10 .07 .08 08-21-02 0950 48.4 36.5 .1 -- E.005 1.19 <.04 E.05 .07 .07 

USGS-9D 06-03-99 1610 39.9 10.1 .2 412 <.010 <.05 .11 .14 .24 .21 

* 1615 40.2 10.9 .2 409 .028 <.05 .15 .14 .26 .28 

09-01-99 1250 38.0 10.9 .2 -- .028 <.05 .08 E.09 .22 .20 

* 1255 38.1 10.2 .2 -- .025 <.05 .07 E.09 .21 .19 

03-03-00 0850 -- -- -- -- .012 <.05 .07 .12 .24 .06 

* 0855 -- -- -- -- .017 <.05 .07 .12 .23 <.05 

08-22-00 1710 35.4 9.21 .2 -- <.010 <.05 .06 .13 .25 .22 

* 1715 39.4 9.16 .2 -- .022 <.05 .07 .12 .26 .26 

02-20-01 1450 37.2 8.41 .2 -- E.004 <.05 .06 .09 .27 .21 

* 1455 37.0 8.63 .2 -- E.003 <.05 .06 .10 .26 .26 

08-23-01 1630 43.0 10.5 .2 -- .007 <.05 .07 .12 .20 .16 

* 1635 42.5 10.1 .2 -- <.006 <.05 .07 .09 .22 E.23 

03-06-02 1000 40.9 9.86 .2 -- .034 .07 .28 .11 .25 .21 

* 1005 -- -- -- -- .031 .09 .14 .12 .25 .21 

08-21-02 0850 40.6 10.4 .2 -- <.008 <.05 .07 .11 .24 .24 

* 0855 40.3 10.3 .2 -- .029 <.05 .11 .12 .24 .23 

04-01-03 1100 -- 7.78 -- -- -- -- -- -- -- -- 

* 1105 -- 7.43 -- -- -- -- -- -- -- -- 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Water level 

(feet below Specific Dissolved Hardness 

measuring conductance Temperature oxygen (mg/L as Calcium Magnesium Sodium Potassi

Date Time point) (μS/cm) pH (°C) (mg/L) CaCO3) (mg/L) (mg/L) (mg/L) (mg/L

City of Columbia public-supply well 5

04-03-03 0840 -- 979 6.8 16.6 -- -- -- -- -- -- 08-28-03 1220 -- 848 7.0 -- -- -- -- -- -- -- 

Blew hole

08-26-99 1340 -- 881 7.7 26.8 6.7 -- 83.8 18.7 58.0 6.29 02-29-00 1110 -- 1,030 6.8 10.8 11.1 -- 104 22.0 91.2 5.85 08-30-00 0800 -- 566 7.3 30.0 3.3 -- 52.3 12.8 46.2 6.03 02-27-01 1440 -- 234 7.2 5.3 10.2 -- 33.7 6.0 14.3 4.44 08-29-01 0830 -- 1,020 7.4 26.6 3.8 -- 73.8 17.8 106 7.42 03-05-02 1330 -- 1,070 8.2 5.5 15.3 -- 74.1 19.5 97.4 6.00 

City outflow

08-31-99 1050 -- 1,540 7.5 21.1 3.5 -- 45.7 23.3 207 41.5 03-02-00 1140 -- 1,470 7.3 10.8 5.9 -- 53.2 20.0 198 36.6 08-29-00 1430 -- 1,400 7.4 28.8 2.7 -- 60.3 20.1 160 24.3 02-28-01 1440 -- 1,210 7.7 7.6 5.7 -- 60.2 15.8 125 23.1 08-24-01 1030 -- 1,600 7.4 24.5 2.4 -- 43.9 21.4 196 -- 03-05-02 1510 -- 1,590 8.0 11.5 12.0 -- 48.4 18.0 195 23.2 04-02-03 1400 -- 1,500 7.8 21.8 8.8 -- -- -- -- -- 04-09-03 1630 -- 1,440 7.6 15.7 -- -- -- -- -- -- 08-27-03 1450 -- 1,780 7.3 27.3 2.5 -- -- -- -- -- 

Eagle Bluffs outflow

08-30-99 1540 -- 1,490 8.8 25.9 1.1 -- 48.6 23.6 208 38.2 03-02-00 1100 -- 1,220 8.8 10.0 7.8 -- 44.7 17.7 164 32.5 08-29-00 1530 -- 1,400 7.5 31.7 .7 -- 63.3 19.7 171 29.1 02-28-01 1300 -- 1,180 8.2 4.1 13.4 -- 44.7 14.8 135 28.1 08-24-01 0940 -- 1,600 9.0 27.0 2.7 -- 50.9 22.5 219 34.5 03-05-02 1430 -- 1,640 8.1 5.5 16.0 -- 47.0 21.0 205 34.9 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Residue, sum Ammonia of Nitrite plus Ammonia as plus organic Phosphorous, Phospho

Sulfate Chloride Fluoride constituents Nitrite as N nitrate as N N N, total total dissolv

Date Time (mg/L) (mg/L) (mg/L) (mg/L)) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L

City of Columbia public-supply well 5 04-03-03 0840 -- 64.5 -- -- -- -- -- -- -- -- 

08-28-03 1220 -- 50.3 -- -- -- -- -- -- -- -- 

Blew hole 08-26-99 1340 81.9 105 0.3 -- <0.010 <0.05 0.07 1.0 0.18 E.04 

02-29-00 1110 82.7 170 .2 -- <.010 <.05 <.02 1.0 .17 <.05 08-30-00 0800 42.8 78.6 .3 -- <.010 <.05 .06 1.4 .23 E.05 02-27-01 1440 27.6 23.6 E.1 -- .013 .59 .09 1.4 .29 .07 08-29-01 830 67.4 131 .3 -- <.006 <.05 <.04 1.1 .17 E.03 03-05-02 1330 84.6 137 .3 -- <.008 <.05 <.04 .88 .09 <.06 

City outflow 08-31-99 1050 98.3 280 1.1 -- .017 <.05 5.91 5.2 2.83 2.88 

03-02-00 1140 108 280 1.0 -- .243 .93 4.85 5.4 2.13 1.95 08-29-00 1430 107 211 1.1 -- <.010 <.05 7.94 8.7 1.81 1.78 02-28-01 1440 93.8 188 .8 -- .038 .12 9.63 13 1.81 1.42 08-24-01 1030 101 241 .9 -- .008 E.03 E14.6 18 3.06 2.86 03-05-02 1510 91.5 278 .9 -- .059 .28 14.3 15 2.55 2.17 04-02-03 1400 -- 285 -- -- -- -- -- -- -- -- 04-09-03 1630 -- -- -- -- -- -- -- -- -- -- 08-27-03 1450 -- 289 -- -- -- -- -- -- -- -- 

Eagle Bluffs outflow 08-30-99 1540 108 271 1.2 -- .661 1.16 1.33 5.2 1.75 1.26 

03-02-00 1100 91.0 218 .9 -- .230 1.24 3.35 5.8 2.06 1.67 08-29-00 1530 113 223 1.1 -- .153 .29 5.78 6.8 2.04 1.93 02-28-01 1300 80.8 203 .8 -- .086 1.18 9.93 14 2.38 1.94 08-24-01 0940 119 278 1.0 -- E.144 E.18 E.55 3.4 .86 .46 03-05-02 1430 102 282 1.0 -- .116 1.53 7.31 9.4 2.02 1.89 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than]

Date Time

Water level 

(feet below 

measuring

point)

Specific 

conductance 

(μS/cm) pH

Temperature 

(°C)

Dissolved 

oxygen

(mg/L)

Hardness 

(mg/L as 

CaCO3)

Calcium

(mg/L)

Magnesium

(mg/L)

Sodium 

(mg/L)

Potassi

(mg/L

Perche Creek

08-26-99 830 -- 653 7.3 24.6 4.8 -- 91.6 16.1 17.7 3.91 03-02-00 1410 -- 491 7.0 10.9 6.9 -- 64.2 12.8 18.2 5.24 08-30-00 0930 -- 378 7.4 28.9 5.3 -- 57.2 9.49 11.4 4.86 02-27-01 1450 -- 234 7.4 4.8 10.8 -- 31.6 5.24 6.18 4.09 08-29-01 1000 -- 304 7.0 25.3 4.1 -- 40.9 6.19 8.64 5.37 03-05-02 1200 -- 700 7.2 2.4 14.0 -- 79.9 13.4 39.9 4.32 

Missouri River

04-02-03 1040 -- 617 8.0 12.5 11.2 -- -- -- -- -- 08-27-03 1540 -- 798 8.1 30.1 5.9 -- -- -- -- -- 
Table 1. Values of physical properties and concentrations of inorganic constituents and nutrients in samples from wells and surface-water sites, 19[μS/cm, microsiemens per centimeter at 25 degrees Celsius; pH, in standard units; °C, degrees Celsius; constituent concentrations are dissolved, unless otherwise noted; mg/L, mCaCO3, calcium carbonate; ANC, total acid neutralizing capacity, incremental titration; N, nitrogen; μg/L, micrograms per liter; NGVD 29, National Geodetic Vertical Datum of 

<, less than; E, estimated; *, replicate sample; >, greater than] Date Time Sulfate (mg/L) Chloride (mg/L) Fluoride (mg/L) Residue, sum of constituents (mg/L)) Nitrite as N (mg/L) Nitrite plus nitrate as N (mg/L) Ammonia as N (mg/L) Ammonia plus organic N, total (mg/L) Phosphorous, total (mg/L) Phospho

dissolv

(mg/L

Perche Creek 08-26-99 0830 39.0 24.3 0.2 -- <0.010 <0.05 0.14 0.94 0.08 <0.05 

03-02-00 1410 96.5 27.1 .2 -- .015 .51 .25 1.2 .27 <.05 08-30-00 0930 50.9 12.1 .2 -- .012 .17 <.02 .74 .14 E.03 02-27-01 1450 33.4 8.67 E.1 -- .011 .75 .07 1.3 .31 E.06 08-29-01 1000 35.6 13.1 .2 -- E.029 E.36 E.07 .72 .14 <.06 03-05-02 1200 91.9 63.6 .2 -- E.006 .30 .12 .45 .07 <.06 

Missouri River 04-02-03 1040 -- 25.8 -- -- -- -- -- -- -- -- 

08-27-03 1540 -- 26.2 -- -- -- -- -- -- -- -- 
Table 2. Concentrations of trace elements, organic carbon, bromide, and silica in samples from selected monitoring wells, 1999.[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; <, less than; --, no data; E, estimated; mg/L, milligrams per liter; COD, chemical osample]

Aluminum Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper Lead Lithiu

Date Time (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/

MW1-1A

06-03-99 1040 <10 6 42.4 <1.6 55 <8 <14 -- <10 <1 20 09-02-99 1000 <20 6 46.2 <1.6 46 <8 <14 -- <10 <1 26 

MW1-1B

06-03-99 1000 <10 1 417 <1.6 90 <8 <14 -- <10 <1 20 09-02-99 1050 <20 2 418 <1.6 72 <8 <14 -- <10 <1 24 

MW1-2A

06-03-99 0900 <10 2 432 <1.6 190 <8 <14 <7 <10 <1 13 09-02-99 0810 <20 2 486 <1.6 218 <8 <14 E7 <10 <1 17 

MW1-2B

06-03-99 0820 <10 <1 1,330 <1.6 83 <8 <14 -- <10 <1 25 09-02-99 0900 <20 <1 1,360 <1.6 87 <8 <14 -- <10 <1 27 

MW1-3A

06-03-99 1250 <10 14 418 <1.6 59 <8 <14 -- <10 <1 19 09-01-99 1440 <20 11 512 <1.6 46 <8 <14 -- <10 <1 23 

MW1-3B

06-03-99 1350 <10 <1 773 <1.6 53 <8 <14 -- <10 <1 15 09-01-99 1550 <20 <1 881 <1.6 46 <8 <14 -- <10 <1 19 

MW1-4A

06-01-99 1530 <10 <1 176 <1.6 53 <8 <14 <7 <10 <1 45 

* 1535 <10 <1 180 <1.6 49 <8 <14 <7 <10 <1 47 

09-02-99 1410 <20 1 187 <1.6 55 <8 <14 <13 <10 <1 53 

* 1415 <20 1 189 <1.6 52 <8 <14 <13 <10 <1 53 

MW1-4B

06-01-99 1430 <10 17 239 <1.6 89 <8 <14 8 <10 <1 28 09-02-99 1320 <20 37 264 <1.6 116 <8 <14 -- <10 <1 23 

MW2-1A

06-02-99 1300 <10 <1 539 <1.6 66 <8 <14 <7 <10 <1 30 08-27-99 0810 <20 2 508 <1.6 63 <8 <14 8 <10 <1 3 
Table 2. Concentrations of trace elements, organic carbon, bromide, and silica in samples from selected monitoring wells, 1999.—Continued [μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; <, less than; --, no data; E, estimated; mg/L, milligrams per liter; COD, chemical osample] Organic Organic carbon, COD

Molybdenum Nickel Selenium Silver Strontium Vanadium Zinc carbon, total high le

Date Time (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (mg/L) (mg/L) (mg/L

MW1-1A 06-03-99 1040 <50 <40 <1 <4 449 <10 <20 2.6 3.3 30 

09-02-99 1000 <30 <40 1 <7 494 <10 <20 3.5 4.2 <10 

MW1-1B 06-03-99 1000 <50 <40 <1 <4 931 <10 <20 2.2 3.1 20 

09-02-99 1050 <30 <40 <1 <7 926 <10 <20 3.5 7.4 <10 

MW1-2A 06-03-99 0900 <50 <40 <1 <4 177 <10 <20 2.7 3.6 30 

09-02-99 0810 <30 <40 <1 <7 190 <10 <20 3.2 3.9 <10 

MW1-2B 06-03-99 0820 <50 <40 <1 <4 345 <10 <20 2.4 2.4 30 

09-02-99 0900 <30 <40 <1 <7 338 <10 <20 3.2 4.2 <10 

MW1-3A 06-03-99 1250 <50 <40 <1 <4 477 <10 <20 1.3 2.8 20 

09-01-99 1440 <30 <40 <1 <7 492 <10 <20 1.8 2.3 <10 

MW1-3B 06-03-99 1350 <50 <40 <1 <4 349 <10 <20 1.4 1.3 20 

09-01-99 1550 <30 <40 <1 <7 386 <10 <20 1.8 2.1 <10 

MW1-4A 06-01-99 1530 <50 <40 <1 <4 565 <10 <20 1.4 1.7 20 

* 1535 <50 <40 <1 <4 590 <10 <20 1.3 1.2 20 

09-02-99 1410 <30 <40 1 <7 607 <10 <20 1.9 2.0 <10 

* 1415 <30 <40 <1 <7 612 <10 <20 2.0 2.0 <10 

MW1-4B 06-01-99 1430 <50 <40 1 <4 485 <10 E8 2.0 3.3 20 

09-02-99 1320 <30 <40 <1 <7 437 E5 <20 3.2 4.4 <10 

MW2-1A 06-02-99 1300 <50 <40 <1 <4 512 <10 <20 1.5 2.8 10 

08-27-99 0810 <30 <40 <1 <7 418 <10 <20 -- -- -- 
Table 2. Concentrations of trace elements, organic carbon, bromide, and silica in samples from selected monitoring wells, 1999.—Continued[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; <, less than; --, no data; E, estimated; mg/L, milligrams per liter; COD, chemical osample]

Aluminum Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper Lead Lithi

Date Time (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/

MW2-1B

06-02-99 1400 <10 <1 1,330 <1.6 85 <8 <14 -- <10 <1 40 08-27-99 0900 <20 <1 1,340 <1.6 85 <8 <14 -- <10 <1 25 

MW3-1A

06-02-99 1440 <10 <1 226 <1.6 55 <8 <14 <7 <10 <1 26 09-01-99 0900 <20 2 234 <1.6 57 <8 <14 <13 <10 <1 28 

MW3-1B

06-02-99 1530 <10 <1 731 <1.6 82 <8 <14 -- <10 <1 43 09-01-99 0810 <20 <1 733 <1.6 82 <8 <14 -- <30 <1 43 

MW4-1A

06-02-99 0810 M 5 441 <1.6 87 <8 <14 -- <10 <1 41 08-31-99 1300 <20 6 440 <1.6 92 <8 <14 -- <10 <1 44 

MW4-1B

06-02-99 0915 <10 1 1,130 <1.6 83 <8 <14 -- <10 <1 35 08-31-99 1350 <20 2 1,020 <1.6 82 <8 <14 -- <10 <1 37 

MW4-2A

06-02-99 1100 <10 4 327 <1.6 77 <8 <14 -- <10 <1 36 08-31-99 1500 <20 5 338 <1.6 87 <8 <14 -- <10 <1 38 

MW4-2B

06-02-99 1020 <10 <1 1,080 <1.6 99 <8 <14 -- <10 <1 43 08-31-99 1600 <20 <1 1,090 <1.6 106 <8 <14 -- <30 <1 47 

USGS-8S

06-04-99 0830 <10 <1 193 <1.6 54 <8 <14 <7 <10 <1 23 

USGS-8D

06-04-99 0830 <10 <1 538 <1.6 67 <8 <14 10 <10 <1 34 

USGS-9S

06-03-99 1510 <10 6 428 <1.6 46 <8 <14 <7 <10 <1 E4 

USGS-9D

06-03-99 1610 <10 <1 555 <1.6 30 <8 <14 -- <10 <1 7 

* 1615 <10 <1 552 <1.6 27 <8 <14 -- <10 <1 8 
Table 2. Concentrations of trace elements, organic carbon, bromide, and silica in samples from selected monitoring wells, 1999.—Continued [μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; <, less than; --, no data; E, estimated; mg/L, milligrams per liter; COD, chemical osample] Organic Organic carbon, COD, Molybdenum Nickel Selenium Silver Strontium Vanadium Zinc carbon total high lev

Date Time (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (mg/L) (mg/L) (mg/L

MW2-1B 06-02-99 1400 <50 <40 <1 <4 715 <10 <20 2.3 2.3 20 

08-27-99 0900 <30 <40 <1 <7 723 <10 <20 2.9 3.0 <10 

MW3-1A 06-02-99 1440 <50 <40 <1 <4 796 <10 <20 1.8 1.3 10 

09-01-99 0900 <30 E20 1 <7 848 <10 <20 2.5 2.5 <10 

MW3-1B 06-02-99 1530 <50 <40 <1 <4 876 <10 <20 1.8 7.3 20 

09-01-99 0810 <30 <40 <1 <7 880 <10 <20 2.4 2.7 <10 

MW4-1A 06-02-99 0810 <50 <40 <1 <4 1,060 <10 <20 2.0 8.0 20 

08-31-99 1300 <30 <40 <1 <7 1,130 <10 <20 3.1 4.8 <10 

MW4-1B 06-02-99 0915 <50 <40 <1 <4 792 <10 <20 2.2 2.8 20 

08-31-99 1350 <30 <40 <1 <7 819 <10 <20 2.6 3.4 <10 

MW4-2A 06-02-99 1100 <50 <40 <1 <4 924 <10 <20 2.4 1.8 20 

08-31-99 1500 <30 E20 <1 <7 1,030 <10 <20 3.0 3.3 <10 

USGS-8S 06-04-99 0830 <50 <40 <1 <4 746 <10 <20 1.3 1.4 20 

USGS-8D 06-04-99 0830 <50 <40 <1 <4 716 <10 <20 1.6 2.5 20 

USGS-9S 06-03-99 1510 <50 <40 1 <4 272 <10 <20 1.1 1.4 10 

USGS-9D 06-03-99 1610 <50 <40 <1 <4 196 <10 <20 1.1 2.7 10 

* 1615 <50 <40 <1 <4 196 <10 <20 1.0 1.5 20 
Tables 45

Table 3. Organic compounds and pesticides analyzed and minimum reporting limits for samples from selected monitoring wells, 

June 1999.

[--, not detected; μg/L, micrograms per liter; CFC, 1,1,2-trichloro-1,2,2-trifluorethane; p,p’-DDD, 1,1’-(2,2-dichloroethylidene)bis(4-chlorobenzene); 

p,p’-DDE, 1,1’-(dichloroethylidene)bis(4-chlorobenzene); p,p’-DDT, 1,1’-(2,2,2-dichloroethylidene)bis(4-chlorobenzene); PCBs, polychlorinated

biphenyls; PCNs, polychlorinated naphthalenes]

Minimum Minimum 

reporting Detected reporting Detected

 limit in water limit in water 

Constituent (μg/L) sample Constituent (μg/L) sample

Organic compounds

1,1-Dichloroethane 3 -- 4-Isoppropyl toluene 3 --

1,1-Dichloroethene 3 -- 4-Nitrophenol 30 --

1,1-Dichloropropene 3 -- 9H-Fluorene 5 --

1,1,1-Trichloroethane 3 -- Acenaphthene 5 --

1,1,1,2-Tetrachloroethane 3 -- Acenaphthylene 5 --

1,1,2-Trichloroethane 3 -- Acrylonitrile 2.5 --

1,1,2,2-Tetrachloroethane 3 -- Anthracene 5 --

1,2-Dibromoethane 3 -- Benzene 3 --

1,2-Dichlorobenzene 3 -- Benzidine 40 --

1,2-Dichloroethane 3 -- Benzo[a]anthracene 10 --

1,2-Dichloropropane 3 -- Benzo[a]pyrene 10 --

1,2-Diphenylhydrazine 5 -- Benzo[b]fluoranthene 10 --

1,2,3-Trichlorobenzene 3 -- Benzo[g,h,i]perylene 10 --

1,2,3-Trichloropropane 3 -- Benzo[k]fluoranthene 10 --

1,2,4-Trichlorobenzene 3 -- Benzyl-n-butyl phthalate 5 --

1,2,4-Trimethylbenzene 3 -- Bis(2-chloroethoxy) methane 5 --

1,3-Dichlorobenzene 3 -- Bis(2-chloroethyl) ether 5 --

1,3-Dichloropropane 3 -- Bis(2-chloroisopropyl) ether 5 --

1,3,5-Trimethylbenzene 3 -- Bis(2-ethylhexyl) phthalate 5 --

1,4-Dichlorobenzene 3 -- Bromobenzene 3 --

2-Chloronaphthalene 5 -- Bromochloromethane 3 --

2-Chlorophenol 5 -- Bromodichloromethane 3 --

2-Chlorotoluene 3 -- Bromomethane 3 --

2-Methyl-4,6-dinitrophenol 30 -- CFC-113 3 --

2-Nitrophenol 5 -- Chrysene 10 --

2,2-Dichloropropane 3 -- Chlorobenzene 3 --

2,4-Dichlorophenol 5 -- Chloroethane 3 --

2,4-Dimethylphenol 5 -- Chloromethane 3 --

2,4-Dinitrophenol 20 -- cis-1,2-Dichloroethene 3 --

2,4-Dinitrotoluene 5 -- cis-1,3-Dichloropropene 3 --

2,4,6-Trichlorophenol 20 -- Dibenzo[a,h]anthracene 10 --

2,6-Dinitrotoluene 5 -- Dibromochloromethane 3 --

3,3’-Dichlorobenzidine 20 -- Dibromochloropropane 3 --

4-Bromophenyl phenyl ether 5 -- Dibromomethane 3 --

4-Chloro-3-methylphenol 30 -- Dichlorodifluoromethane 3 --

4-Chlorophenyl phenyl ether 5 -- Dichloromethane 3 --

4-Chlorotoluene 3 -- Diethyl phthalate 5 --
46 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

Table 3. Organic compounds and pesticides analyzed and minimum reporting limits for samples from selected monitoring wells, 

June 1999.—Continued

[--, not detected; μg/L, micrograms per liter; CFC, 1,1,2-trichloro-1,2,2-trifluorethane; p,p’-DDD, 1,1’-(2,2-dichloroethylidene)bis(4-chlorobenzene); 

p,p’-DDE, 1,1’-(dichloroethylidene)bis(4-chlorobenzene); p,p’-DDT, 1,1’-(2,2,2-dichloroethylidene)bis(4-chlorobenzene); PCBs, polychlorinated

biphenyls; PCNs, polychlorinated naphthalenes]

Minimum Minimum 

reporting Detected reporting Detected

 limit in water limit in water 

Constituent (μg/L) sample Constituent (μg/L) sample

Organic compounds—Continued

Dimethyl phthalate 5 -- N-Nitrosodiphenylamine 5 --

Di-n-butyl phthalate 5 -- Pentachlorophenol 30 --

Di-n-octyl phthalate 10 -- Pentanthrene 5 --

Ethylbenzene 3 -- Phenol 5 --

Fluoranthene 5 -- Pyrene 5 --

Hexachlorobenzene 5 -- sec-Butylbenzene 3 --

Hexachlorobutadiene 3 -- Styrene 3 --

Hexachlorocyclopentadiene 20 -- tert-Butylbenzene 3 --

Hexachloroethane 5 -- Tetrachloroethene 3 --

Indeno[1,2,3-cd]pyrene 10 -- Tetrachloromethane 3 --

Isophorone 5 -- Toluene 3 --

Isopropylbenzene 3 -- trans-1,2-Dichloroethene 3 --

Methyl-t-butyl ether 3 -- trans-1,3-Dichloropropene 3 --

Naphthalene 3 -- Tribromomethane 3 --

Nitrobenzene 5 -- Trichloroethene 3 --

n-Butylbenzene 3 -- Trichlorofluoromethane 3 --

n-Propylbenzene 3 -- Trichloromethane 3 --

N-Nitrosodimethylamine 5 -- Vinyl chloride 1 --

N-Nitrosodi-n-propylamine 5 -- Xylenes (total) 3 --

Pesticides

Aldrin .01 -- p,p’-DDD .01 --

alpha-Endosulfan .01 -- p,p’-DDE .01 --

Chlordane .1 -- p,p’-DDT .01 --

Dieldrin .010 -- p,p’-Ethyl-DDD .1 --

Endrin .01 -- p,p’-Methoxychlor .01 --

Heptachlor .01 -- PCBs .1 --

Heptachlor epoxide .01 -- PCNs .1 --

Lindane .01 -- Toxaphene 1 --

Mirex .01 --
Tables 47

Table 4. Wastewater organic compounds analyzed and minimum reporting limits for samples from selected monitoring wells and 

surface-water sites, 1999–2003.

[--, not detected; μg/L, micrograms per liter; AHTN, acetyl hexamethyl tetrahydronaphthalene; DEET, N,N-diethyl-meta-toluamide; HHCB, hexahydrohexamethylcyclopentabenzopyran; compounds detected are indicated with an X in the table]

Minimum Detected in Minimum Detected in

reporting ground or reporting ground or 

 limit surface water limit surface water 

Constituent (μg/L) (table 6) Constituent (μg/L) (table 6)

1,4-Dichlorobenzene 0.5 X Dichlorvos 1 --

1-Methylnaphthalene .5 -- Diethoxynonylphenol 5 X

2,6-Dimethylnaphthalene .5 -- Diethoxyoctylphenol 1 X

2-Methylnaphthalene .5 -- d-Limonene .5 --

3-beta-Coprostanol 2 X Ethoxyoctylphenol .5 X

3-Methyl-1H-indole 1 X HHCB .5 X

3-tert-Butyl-4-hydroxyanisole (BHA) 5 -- Indole .5 X

4-Cumylphenol 1 -- Isoborneol .5 --

4-Octylphenol 1 -- Isophorone .5 X

4-Nonylphenol 5 X Isopropylbenzene .5 --

4-tert-Octylphenol 1 X Isoquinoline .5 --

5-Methyl-1H-benzotriazole 2 X Menthol .5 X

9,10-Anthraquinone .5 -- Metalaxyl .5 --

Acetophenone .5 X Methyl salicylate .5 X

AHTN .5 X Metolachlor .5 --

Anthracene .5 -- Naphthalene .5 --

Benzo[a]pyrene .5 -- p-Cresol 1 X

Benzophenone .5 X Pentachlorophenol 2 --

beta-Sitosterol 2 X Phenanthrene .5 --

beta-Stigmastanol 2 X Phenol .5 X

Bisphenol A 1 X Prometon .5 X

Bromacil .5 -- Pyrene .5 --

Caffeine .5 X Tetrachloroethene .5 --

Camphor .5 X Tribromomethane .5 X

Carbaryl 1 X Tributyl phosphate .5 X

Carbazole .5 -- Triclosan 1 X

Chlorpyrifos .5 -- Triethyl citrate .5 X

Cholesterol 2 X Triphenyl phosphate .5 X

Cotinine 1 X Tris(2-butoxyethyl) phosphate .5 X

DEET .5 X Tris(2-chloroethyl) phosphate .5 X

Diazinon .5 X Tris(dichloroisopropyl) phosphate .5 X
48 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

Table 5. Pesticides analyzed and minimum reporting limits for samples from selected monitoring wells and surface-water 

sites, 1999–2003.

[--, not detected; μg/L, micrograms per liter; CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; HCH, hexachlorocyclohexane; DCPA,

dimethyl tetrachloroterephthalate; EPTC, s-ethyl dipropylthiocarbamate; DDE, dichlorodiphenyl dichloroethylene; compounds detected are indicated 

with an X in the table]

Constituent

Minimum 

reporting

 limit

(μg/L)

Detected in 

ground or

surface water 

(table 6) Constituent

Minimum 

reporting

 limit

(μg/L)

Detected in 

ground or 

surface water 

(table 6)

2,6-Diethylanaline 0.006 -- Malathion 0.027 --

CIAT .014 X Methyl parathion .015 --

Acetochlor .006 -- Metolachlor .006 X

Alachlor .005 -- Metribuzin .028 X

alpha-HCH .005 -- Molinate .003 --

Atrazine .007 X Napropamide .007 --

Azinphos-methyl .05 -- p,p’-DDE .003 --

Benfluralin .01 -- Parathion .01 --

Butylate .004 -- Pebulate .004 --

Carbaryl .041 X Pendimethalin .022 --

Carbofuran .02 -- Phorate .055 --

Chlorpyrifos .005 -- Prometon .010 X

cis-Permethrin .006 -- Propyzamide .004 --

Cyanazine .018 -- Propachlor .010 --

DCPA .003 -- Propanil .011 --

Dieldrin .009 -- Propargite .023 --

Disulfoton .021 -- Simazine .005 --

EPTC .004 -- Tebuthiuron .016 --

Ethalfluralin .009 -- Terbacil .034 --

Ethoprop .012 -- Terbufos .017 --

Fonofos .0053 -- Thiobencarb .010 --

Lindane .004 -- Triallate .006 --

Linuron .035 -- Trifluralin .009 --
Table 6. Concentrations of wastewater organic compounds and pesticides in samples from selected monitoring wells and surface-water sampling s[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; AHTN, acetyl hexamethyl te

--, concentration less than reporting limit; nd, not determined; E, estimated; M, presence verified, but not quantified; *, replicate sample; DEET, n,n-diethyl-meta-toluamide]

1,4,Dichloro- 3-beta- 3-Methyl-1H- 4-Nonyl- 4-tert-Octyl- 5-Methyl-1H- Aceto- Benzo- b

benzene Coprostanol indole phenol phenol benzotriazole CIAT phenone AHTN Atrazine phenone Sit

Date Time (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μ

MW1-1A

04-03-03 1040 -- -- -- -- -- -- nd -- -- nd E0.1 08-28-03 1000 -- -- -- -- -- -- nd -- -- nd -- 

MW1-2A

04-03-03 1000 -- -- -- -- -- -- nd -- -- nd E.2 08-28-03 1100 -- -- -- -- -- -- nd -- -- nd -- 

MW1-3A 

04-03-03 1630 -- -- -- -- -- -- nd E.2 -- nd E.1 08-28-03 1140 -- -- M -- -- -- nd -- -- nd -- 

MW1-3B

06-03-99 1350 -- nd nd nd nd nd -- nd nd 0.008 nd 

MW1-4A

04-03-03 1530 -- -- -- -- -- -- -- -- -- -- -- 08-28-03 0920 -- -- -- -- -- -- -- -- -- -- -- 

MW3-1A

04-01-03 1650 -- -- -- E1 -- -- nd E.2 -- nd E.2 08-27-03 1430 -- -- -- -- -- -- nd -- -- nd -- 

MW4-1A

04-02-03 0950 -- -- -- -- -- -- -- E.2 -- .007 E.2 08-27-03 1230 -- -- -- -- -- -- -- -- -- -- -- 

MW4-2A

04-02-03 0850 -- -- -- -- -- -- nd -- -- nd M 08-27-03 1130 -- -- -- -- -- -- nd -- -- nd -- 

USGS-1

03-01-01 1130 nd nd nd nd nd nd E0.002 nd nd E.002 nd 

USGS-3S

04-01-03 1320 -- -- -- -- -- -- nd E.2 -- nd E.1 

USGS-9S

02-20-01 1330 nd nd nd nd nd nd E.004 nd nd -- nd 
Table 6. Concentrations of wastewater organic compounds and pesticides in samples from selected monitoring wells and surface-water sampling s[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; AHTN, acetyl hexamethyl te

--, concentration less than reporting limit; nd, not determined; E, estimated; M, presence verified, but not quantified; *, replicate sample; DEET, n,n-diethyl-meta-toluamide] Diethoxy- Diethoxy- Ethoxy- Caffeine Camphor Carbaryl Cholesterol Cotinine DEET Diazinon nonylphenol octylphenol octylphenol HHCB Ind

Date (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg

MW1-1A 04-03-02 -- -- -- -- -- E0.1 -- -- -- -- -- -

08-28-02 -- -- -- -- -- -- -- -- -- -- -- -

MW1-2A 04-03-02 -- -- -- -- -- E.2 -- -- -- -- -- -

08-28-02 -- -- -- -- -- E.1 -- -- -- -- -- -

MW1-3A 04-03-02 -- -- -- -- -- E.1 -- -- -- -- -- -

08-28-02 -- -- -- -- -- -- -- -- -- -- -- -

MW1-3B 06-03-99 nd nd -- nd nd nd -- nd nd nd nd nMW1-4A 04-03-02 -- -- -- -- -- -- -- -- -- -- -- -

08-28-02 -- -- -- -- -- -- -- -- -- -- -- -

MW3-1A 04-01-02 -- -- -- -- -- E.1 -- -- -- -- -- -

08-27-02 -- -- -- -- -- -- -- -- -- -- -- -

MW4-1A 04-02-03 -- -- -- -- -- E.2 -- -- -- -- -- -

08-27-03 -- -- -- -- -- -- -- -- -- -- -- -

MW4-2A 04-02-03 -- -- -- -- -- E.1 -- -- -- -- -- -

08-27-03 -- -- -- -- -- M -- -- -- -- -- -

USGS-1 03-01-01 nd nd -- nd nd nd -- nd nd nd nd n

USGS-3S 04-01-03 -- -- -- -- -- E.1 -- -- -- -- -- -

USGS-9S 02-20-01 nd nd -- nd nd nd -- nd nd nd nd n
Table 6. Concentrations of wastewater organic compounds and pesticides in samples from selected monitoring wells and surface-water sampling s[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; AHTN, acetyl hexamethyl te

--, concentration less than reporting limit; nd, not determined; E, estimated; M, presence verified, but not quantified; *, replicate sample; DEET, n,n-diethyl-meta-toluamide]

Tris 

(2-butox

Methyl Tribromo- Tributyl Triethyl Triphenyl ethyl) 

salicylate Metolachlor Metribuzin p-Cresol Phenol Prometon Simazine methane phosphate Triclosan citrate phosphate phospha

Date (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) 

MW1-1A

04-03-02 -- -- nd -- 1.0 -- nd -- -- -- -- -- -- 08-28-02 -- -- nd -- 1.0 -- nd -- -- -- -- -- -- 

MW1-2A

06-03-99 M -- nd -- E.3 -- nd -- -- -- -- -- -- 09-02-99 -- -- nd -- -- -- nd -- -- -- -- -- -- 

MW1-3A

04-03-02 M -- nd -- E.3 -- nd -- -- -- -- -- -- 08-28-02 -- -- nd M .8 -- nd -- -- -- -- -- -- 

MW1-3B

06-03-99 nd -- -- nd -- -- -- nd nd nd nd nd nd 

MW1-4A

04-03-02 -- -- -- -- 1.8 -- -- -- -- -- -- -- -- 08-28-02 -- -- -- -- -- -- -- -- -- -- -- -- -- 

MW3-1A

04-01-02 E0.1 -- nd -- 1.2 -- nd -- -- -- -- -- -- 08-27-02 -- -- nd -- E.3 -- nd -- -- -- -- -- -- 

MW4-1A

04-02-03 E.1 -- -- -- E.3 -- -- -- -- -- -- -- -- 08-27-03 -- -- -- -- .6 -- -- -- -- -- -- -- -- 

MW4-2A

04-02-03 E.1 -- nd -- 1.8 -- nd -- -- -- -- -- -- 08-27-03 -- -- nd -- .6 -- nd -- -- -- -- -- -- 

USGS-1

03-01-01 nd -- -- nd nd -- -- nd nd nd nd nd nd 

USGS-3S

04-01-03 E.2 -- nd -- .5 -- nd -- -- -- -- -- -- 

USGS-9S

02-20-01 nd -- -- nd -- -- -- nd nd nd nd nd nd 
Table 6. Concentrations of wastewater organic compounds and pesticides in samples from selected monitoring wells and surface-water sampling s[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; AHTN, acetyl hexamethyl te

--, concentration less than reporting limit; nd, not determined; E, estimated; M, presence verified, but not quantified; *, replicate sample; DEET, n,n-diethyl-meta-toluamide] 1,4,Dichloro- 3-beta- 3-Methyl-1H- 4-Nonyl- 4-tert-Octyl- 5-Methyl-1H- Aceto- Benzo- be

benzene Coprostanol indole phenol phenol benzotriazole CIAT phenone AHTN Atrazine phenone Sito

Date Time (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μ

USGS-9D 04-01-03 1100 -- -- -- -- -- -- nd -- -- nd E0.1 

* 1105 -- -- -- -- -- -- nd -- -- nd M 

City of Columbia public-supply well 5 04-03-03 0840 -- -- -- -- -- -- nd -- -- -- E.1 

08-28-03 1220 -- -- -- -- -- -- nd -- -- -- M 

Blew hole 08-26-99 1340 nd nd nd nd nd nd E0.043 nd nd 0.192 nd n

08-30-00 0800 nd nd nd nd nd nd E.059 nd nd .073 nd n02-27-01 1440 nd nd nd nd nd nd E.007 nd nd .013 nd n

City outflow 08-31-99 1050 nd nd nd nd nd nd -- nd nd -- nd n

08-29-00 1430 nd nd nd nd nd nd -- nd nd -- nd n02-28-01 1440 nd nd nd nd nd nd -- nd nd -- nd n04-02-03 1400 M E1 -- E4 M E2 nd E0.3 0.6 nd .6 04-09-03 1630 E0.1 E2 M E3 M E1 nd E.2 .8 nd .5 E

Eagle Bluffs outflow 08-30-99 1540 nd nd nd nd nd nd -- nd nd -- nd n

08-29-00 1530 nd nd nd nd nd nd -- nd nd -- nd n02-28-01 1300 nd nd nd nd nd nd -- nd nd -- nd n

Perche Creek 08-26-99 0830 nd nd nd nd nd nd E.029 nd nd .154 nd n

08-30-00 0930 nd nd nd nd nd nd E.011 nd nd .112 nd n02-27-01 1450 nd nd nd nd nd nd E.010 nd nd .017 nd n

Missouri River 04-02-03 1040 -- -- -- -- -- -- nd -- M nd M 

08-27-03 1540 -- -- -- -- -- -- nd E.1 -- nd M 
Table 6. Concentrations of wastewater organic compounds and pesticides in samples from selected monitoring wells and surface-water sampling s[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; AHTN, acetyl hexamethyl te

--, concentration less than reporting limit; nd, not determined; E, estimated; M, presence verified, but not quantified; *, replicate sample; DEET, n,n-diethyl-meta-toluamide]

Diethoxy- Diethoxy- Ethoxynonyl- octyl- octylCaffeine Camphor Carbaryl Cholesterol Cotinine DEET Diazinon phenol phenol phenol HHCB Indo

Date (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/

USGS-9D

04-01-03 -- -- -- -- -- E0.1 -- -- -- -- -- -- 

*

-- -- -- -- -- M -- -- -- -- -- -- 

City of Columbia public-supply well 5

04-03-03 -- -- -- -- -- M -- -- -- -- -- -- 08-28-03 -- -- -- -- -- M -- -- -- -- -- -- 

Blew hole

08-26-99 nd nd nd nd nd nd -- nd nd nd nd nd 08-30-00 nd nd nd nd nd nd -- nd nd nd nd nd 02-27-01 nd nd nd nd nd nd -- nd nd nd nd nd 

City outflow

08-31-99 nd nd E0.053 nd nd nd 0.042 nd nd nd nd nd 08-29-00 nd nd E.015 nd nd nd .058 nd nd nd nd nd 02-28-01 nd nd -- nd nd nd .028 nd nd nd nd nd 04-02-03 E.3 -- nd E2 E0.240 .8 -- E4 M M E0.1 -- 04-09-03 2.6 M nd E3 E.420 .5 E.100 E9 M E2 E.2 E0

Eagle Bluffs outflow

08-30-99 nd nd -- nd nd nd .028 nd nd nd nd nd 08-29-00 nd nd E.008 nd nd nd .047 nd nd nd nd nd 02-28-01 nd nd -- nd nd nd .019 nd nd nd nd nd 

Perche Creek

08-26-99 nd nd -- nd nd nd -- nd nd nd nd nd 08-30-00 nd nd -- nd nd nd .012 nd nd nd nd nd 02-27-01 nd nd -- nd nd nd -- nd nd nd nd nd 

Missouri River

04-02-03 E.1 -- -- -- -- M -- -- -- -- -- -- 08-27-03 E.1 -- -- -- -- E.1 -- -- -- -- -- -- 
Table 6. Concentrations of wastewater organic compounds and pesticides in samples from selected monitoring wells and surface-water sampling s[μg/L, micrograms per liter; constituent concentrations are dissolved, unless otherwise noted; CIAT, 2-chloro-4-isopropylamino-6-amino-s-triazine; AHTN, acetyl hexamethyl te

--, concentration less than reporting limit; nd, not determined; E, estimated; M, presence verified, but not quantified; *, replicate sample; DEET, n,n-diethyl-meta-toluamide]Tris 

(2-butox

Methyl Tribromo- Tributyl Triethyl Triphenyl ethyl

salicylate Metolachlor Metribuzin p-Cresol Phenol Prometon Simazine methane phosphate Triclosan citrate phosphate phosph

Date (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L

USGS-9D 04-01-03 E0.2 -- nd -- E0.2 -- nd -- -- -- -- -- -- 

E.1 -- nd -- .6 -- nd -- -- -- -- -- -- 

City of Columbia public-supply well 5 04-03-03 M -- nd -- E.2 -- nd -- -- -- -- -- -- 

08-28-03 -- -- nd -- -- -- nd -- -- -- -- -- -- 

Blew hole 08-26-99 nd 0.064 -- nd nd -- -- nd nd nd nd nd nd 

08-30-00 nd -- -- nd nd E0.01 -- nd nd nd nd nd nd 02-27-01 nd E.004 0.031 nd nd -- -- nd nd nd nd nd nd 

City outflow 08-31-99 nd -- -- nd nd -- -- nd nd nd nd nd nd 

08-29-00 nd -- -- nd nd -- -- nd nd nd nd nd nd 02-28-01 nd -- -- nd nd -- -- nd nd nd nd nd nd 04-02-03 E.1 -- nd M E.2 -- nd -- E0.3 M E0.2 E0.1 2.0 04-09-03 -- -- nd M E.5 1.7 nd M E.3 M E.3 E.1 E2.6 

Eagle Bluffs outflow 08-30-99 nd -- -- nd nd -- -- nd nd nd nd nd nd 

08-29-00 nd -- -- nd nd E.02 -- nd nd nd nd nd nd 02-28-01 nd -- -- nd nd -- -- nd nd nd nd nd nd 

Perche Creek 08-26-99 nd .020 -- nd nd -- -- nd nd nd nd nd nd 

08-30-00 nd .013 -- nd nd E.01 0.008 nd nd nd nd nd nd 02-27-01 nd E.005 .026 nd nd -- -- nd nd nd nd nd nd 

Missouri River 04-02-03 M M nd -- E.2 -- nd M -- -- -- E.1 E.3 

08-27-03 -- M nd -- .6 -- nd -- -- -- -- -- -- 
Tables 55

Table 7. Altitude of water levels in monitoring wells, 2004–2005.

[Altitudes are in feet above National Geodetic Vertical Datum of 1929 (NGVD 29); ft, feet; --, no data]

Site

(fig. 3) Date

Altitude

(ft)

Site

(fig. 3) Date

Altitude

(ft)

MW-101 02-24-2004 567.35 MW-111 02-24-2004 551.84

08-31-2004 559.56 08-31-2004 557.65

03-08-2005 560.81 03-08-2005 553.87

08-02-2005 557.11 08-02-2005 552.77

MW-102 02-24-2004 558.24 MW-112 02-24-2004 553.33

08-31-2004 561.16 08-31-2004 558.12

03-08-2005 563.20 03-08-2005 556.45

08-02-2005 557.96 08-02-2005 555.08

MW-103 02-24-2004 556.57 MW-113 02-24-2004 553.40

08-31-2004 560.41 08-31-2004 562.17

03-08-2005 561.28 03-08-2005 554.60

08-02-2005 556.98 08-02-2005 554.51

MW-104 02-24-2004 554.65 MW-114 02-24-2004 556.31

08-31-2004 562.07 08-31-2004 562.81

03-08-2005 557.27 03-08-2005 559.63

08-02-2005 555.70 08-02-2005 556.71

MW-105 02-24-2004 554.33 MW-115 02-24-2004 552.04

08-31-2004 559.34 08-31-2004 557.78

03-08-2005 556.84 03-08-2005 553.61

08-02-2005 555.62 08-02-2005 553.47

MW-106 02-24-2004 554.72 MW-116 02-24-2004 552.75

08-31-2004 559.66 08-31-2004 557.29

03-08-2005 558.18 03-08-2005 555.72

08-02-2005 556.21 08-02-2005 554.50

MW-107 02-24-2004 554.83 MW-117 02-24-2004 551.88

08-31-2004 560.02 08-31-2004 557.73

03-08-2005 558.45 03-08-2005 553.70

08-02-2005 556.43 08-02-2005 552.72

MW-108 02-24-2004 556.01 MW-118 02-24-2004 551.89

08-31-2004 560.70 08-31-2004 559.37

03-08-2005 560.50 03-08-2005 554.58

08-02-2005 557.26 08-02-2005 553.95

MW-109 02-24-2004 554.62 MW-117 02-24-2004 551.88

08-31-2004 562.44 08-31-2004 557.73

03-08-2005 557.14 03-08-2005 553.70

08-02-2005 555.69 08-02-2005 552.72

MW-110 02-24-2004 553.70 MW-118 02-24-2004 551.89

08-31-2004 561.10 08-31-2004 559.37

03-08-2005 555.94 03-08-2005 554.58

08-02-2005 555.11 08-02-2005 553.95
56 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

Site

(fig. 3) Date

Altitude

(ft)

Site

(fig. 3) Date

Altitude

(ft)

MW-119 02-24-2004 551.21 MW-129 02-24-2004 551.19

08-31-2004 556.42 08-31-2004 555.34

03-08-2005 554.44 03-08-2005 554.47

08-02-2005 553.00 08-02-2005 553.52

MW-120 02-24-2004 548.90 MW-130 02-24-2004 552.78

08-31-2004 554.17 08-31-2004 556.17

03-08-2005 554.50 03-08-2005 555.69

08-02-2005 551.78 08-02-2005 554.33

MW-121 02-24-2004 550.83 MW-131 02-24-2004 553.71

08-31-2004 555.40 08-31-2004 --

03-08-2005 553.94 03-08-2005 556.02

08-02-2005 552.77 08-02-2005 555.74

MW-122 02-24-2004 549.57 MW-132 02-24-2004 551.15

08-31-2004 553.99 08-31-2004 555.42

03-08-2005 554.05 03-08-2005 554.48

08-02-2005 551.95 08-02-2005 553.66

MW-123 02-24-2004 548.68 MW-133 02-24-2004 549.86

08-31-2004 553.67 08-31-2004 553.74

03-08-2005 553.74 03-08-2005 553.39

08-02-2005 551.13 08-02-2005 552.71

MW-124 02-24-2004 548.81 MW-134 02-24-2004 549.20

08-31-2004 553.95 08-31-2004 554.11

03-08-2005 552.96 03-08-2005 553.47

08-02-2005 551.77 08-02-2005 552.37

MW-125 02-24-2004 549.00 MW-135 02-24-2004 551.57

08-31-2004 555.69 08-31-2004 561.54

03-08-2005 552.99 03-08-2005 554.89

08-02-2005 551.79 08-02-2005 554.63

MW-126 02-24-2004 549.91 MW-136 02-24-2004 550.02

08-31-2004 554.18 08-31-2004 557.68

03-08-2005 553.55 03-08-2005 554.62

08-02-2005 552.53 08-02-2005 553.09

MW-127 02-24-2004 551.87 MW-137 02-24-2004 552.39

08-31-2004 555.58 08-31-2004 562.25

03-08-2005 554.31 03-08-2005 555.32

08-02-2005 553.26 08-02-2005 555.03

MW-128 02-24-2004 552.30 MW-138 02-24-2004 549.15

08-31-2004 556.28 08-31-2004 556.39

03-08-2005 554.89 03-08-2005 553.64

08-02-2005 -- 08-02-2005 551.56

Table 7. Altitude of water levels in monitoring wells, 2004–2005.—Continued

[Altitudes are in feet above National Geodetic Vertical Datum of 1929 (NGVD 29); ft, feet; --, no data]
Tables 57

Table 7. Altitude of water levels in monitoring wells, 2004–2005.—Continued

[Altitudes are in feet above National Geodetic Vertical Datum of 1929 (NGVD 29); ft, feet; --, no data]

Site Altitude Site Altitude

(fig. 3) Date (ft) (fig. 3) Date (ft)

MW-139 02-24-2004 550.04 MW-150 02-24-2004 566.71

08-31-2004 554.53 08-31-2004 566.69

03-08-2005 553.96 03-08-2005 566.58

08-02-2005 553.27 08-02-2005 --

MW-140 02-24-2004 560.95 MW-151 02-24-2004 552.64

08-31-2004 562.56 08-31-2004 557.86

03-08-2005 559.09 03-08-2005 556.22

08-02-2005 557.68 08-02-2005 557.27

MW-141 02-24-2004 552.53 MW-152 02-24-2004 555.90

08-31-2004 556.17 08-31-2004 566.87

03-08-2005 555.68 03-08-2005 557.10

08-02-2005 554.76 08-02-2005 558.35

MW-142 02-24-2004 576.20 MW-153 02-24-2004 555.82

08-31-2004 575.45 08-31-2004 565.96

03-08-2005 576.55 03-08-2005 557.99

08-02-2005 574.36 08-02-2005 559.02

MW-143 02-24-2004 568.29 MW-154 02-24-2004 551.24

08-31-2004 568.38 08-31-2004 555.39

03-08-2005 569.10 03-08-2005 554.76

08-02-2005 567.16 08-02-2005 554.26

MW-144 02-24-2004 550.25 MW-155 02-24-2004 551.49

08-31-2004 555.90 08-31-2004 555.60

03-08-2005 554.10 03-08-2005 556.43

08-02-2005 553.65 08-02-2005 554.74

MW-145 02-24-2004 553.33 MW1-1A 02-24-2004 569.01

08-31-2004 562.62 08-31-2004 569.21

03-08-2005 555.94 03-08-2005 570.06

08-02-2005 556.11 08-02-2005 568.37

MW-146 02-24-2004 552.64 MW1-1B 02-24-2004 562.15

08-31-2004 560.90 08-31-2004 563.30

03-08-2005 555.51 03-08-2005 563.55

08-02-2005 555.85 08-02-2005 561.37

MW-147 02-24-2004 548.54 MW1-2A 02-24-2004 552.68

08-31-2004 554.50 08-31-2004 556.48

03-08-2005 552.81 03-08-2005 555.61

08-02-2005 -- 08-02-2005 554.72

MW-148 02-24-2004 555.12 MW1-2B 02-24-2004 552.68

08-31-2004 561.02 08-31-2004 556.47

03-08-2005 558.42 03-08-2005 555.61

08-02-2005 556.08 08-02-2005 554.74
58 Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms, Columbia, Missouri

Site

(fig. 3) Date

Altitude

(ft)

Site

(fig. 3) Date

Altitude

(ft)

MW1-3A 02-24-2004 551.95 MW4-2A 02-24-2004 555.48

08-31-2004 555.82 08-31-2004 562.15

03-08-2005 555.15 03-08-2005 558.89

08-02-2005 554.38 08-02-2005 556.73

MW1-3B 02-24-2004 551.81 MW4-2B 02-24-2004 555.50

08-31-2004 555.72 08-31-2004 562.17

03-08-2005 555.04 03-08-2005 558.86

08-02-2005 554.26 08-02-2005 556.71

MW1-4A 02-24-2004 572.11 USGS-1 02-24-2004 553.61

08-31-2004 571.66 08-31-2004 559.05

03-08-2005 572.62 03-08-2005 556.04

08-02-2005 570.86 08-02-2005 555.22

MW1-4B 02-24-2004 561.68 USGS-2S 02-24-2004 556.74

08-31-2004 562.85 08-31-2004 561.34

03-08-2005 562.91 03-08-2005 561.47

08-02-2005 560.44 08-02-2005 557.53

MW2-1A 02-24-2004 552.13 USGS-2D 02-24-2004 556.76

08-31-2004 556.85 08-31-2004 561.38

03-08-2005 554.13 03-08-2005 561.37

08-02-2005 553.51 08-02-2005 557.53

MW2-1B 02-24-2004 -- USGS-3S 02-24-2004 556.08

08-31-2004 -- 08-31-2004 560.62

03-08-2005 -- 03-08-2005 559.25

08-02-2005 -- 08-02-2005 556.29

MW3-1A 02-24-2004 553.02 USGS-3D 02-24-2004 555.85

08-31-2004 557.93 08-31-2004 560.40

03-08-2005 555.56 03-08-2005 558.99

08-02-2005 554.71 08-02-2005 556.07

MW3-1B 02-24-2004 552.96 USGS-4 02-24-2004 555.66

08-31-2004 557.90 08-31-2004 561.88

03-08-2005 555.48 03-08-2005 559.56

08-02-2005 554.64 08-02-2005 556.58

MW4-1A 02-24-2004 554.19 USGS-5S 02-24-2004 559.26

08-31-2004 559.79 08-31-2004 560.07

03-08-2005 557.44 03-08-2005 563.89

08-02-2005 555.86 08-02-2005 558.48

MW4-1B 02-24-2004 554.16 USGS-5D 02-24-2004 559.24

08-31-2004 559.96 08-31-2004 560.09

03-08-2005 557.26 03-08-2005 563.89

08-02-2005 555.74 08-02-2005 558.53

Table 7. Altitude of water levels in monitoring wells, 2004–2005.—Continued

[Altitudes are in feet above National Geodetic Vertical Datum of 1929 (NGVD 29); ft, feet; --, no data]
Tables 59

Table 7. Altitude of water levels in monitoring wells, 2004–2005.—Continued

[Altitudes are in feet above National Geodetic Vertical Datum of 1929 (NGVD 29); ft, feet; --, no data]

Site Altitude Site Altitude

(fig. 3) Date (ft) (fig. 3) Date (ft)

USGS-6 02-24-2004 554.65 USGS-9D 02-24-2004 --

08-31-2004 560.70 08-31-2004 --

03-08-2005 556.07 03-08-2005 --

08-02-2005 555.18 08-02-2005 --

USGS-7 02-24-2004 553.22 SP11 02-24-2004 559.33

08-31-2004 561.70 08-31-2004 560.05

03-08-2005 555.24 03-08-2005 563.81

08-02-2005 554.80 08-02-2005 560.76

USGS-8S 02-24-2004 549.80 SP4 02-24-2004 563.77

08-31-2004 553.29 08-31-2004 --

03-08-2005 554.57 03-08-2005 563.75

08-02-2005 551.36 08-02-2005 563.22

USGS-8D 02-24-2004 549.60 MW13-67 02-24-2004 549.49

08-31-2004 552.59 08-31-2004 551.72

03-08-2005 554.48 03-08-2005 554.42

08-02-2005 550.56 08-02-2005 549.74

USGS-9S 02-24-2004 554.03 MW28-67 02-24-2004 557.60

08-31-2004 560.40 08-31-2004 560.76

03-08-2005 558.21 03-08-2005 561.65

08-02-2005 559.07 08-02-2005 558.15
Smith and Richards—Water-Quality Data, 1999–2005, and Ground-Water Level Data, 2004–2005, for McBaine Bottoms,—Data Series 212

Including the Eagle Bluffs Conservation Area, Columbia, Missouri