U.S. Department of the Interior

U.S. Geological Survey

Data Series 328

Prepared in cooperation with the Bureau of Reclamation

Water-Quality Data for Water- and Wastewater-Treatment 

Plants Along the Red River of the North, North Dakota and 

Minnesota, January through October 2006

Water-Quality Data for Water- and 

Wastewater-Treatment Plants Along the 

Red River of the North, North Dakota and 

Minnesota, January through October 2006

By William C. Damschen, John A. Hansel, and Rochelle A. Nustad

Prepared in cooperation with the Bureau of Reclamation

Data Series 328

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: 2008

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reproduce any copyrighted materials contained within this report.

Suggested citation:

Damschen, W.C., Hansel, J.A., and Nustad, R.A., 2008, Water-quality data for water- and wastewater-treatment 

plants along the Red River of the North, North Dakota and Minnesota, January through October 2006: U.S. Geological 

Survey Data Series 328, 67 p.
iii

Contents

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

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

Data Collection...............................................................................................................................................3

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

References Cited..........................................................................................................................................67

Figure

1. Map showing locations of sampling sites in the Red River of the North Basin, 

North Dakota and Minnesota .....................................................................................................2

Tables

1. Locations of sampling sites in the Red River of the North Basin, 

North Dakota and Minnesota .....................................................................................................4

2. Analytical results for water-quality samples collected from the 

Breckenridge, Minnesota, water- and wastewater-treatment plants.................................6

3. Analytical results for water-quality samples collected from the 

Wahpeton, North Dakota, water- and wastewater-treatment plants................................14

4. Analytical results for water-quality samples collected from the Fargo, 

North Dakota, water- and wastewater-treatment plants ....................................................22

5. Analytical results for water-quality samples collected from the West 

Fargo, North Dakota, water- and wastewater-treatment plants ........................................30

6. Analytical results for water-quality samples collected from the 

Moorhead, Minnesota, water- and wastewater-treatment plants ....................................38

7. Analytical results for water-quality samples collected from the 

Grand Forks, North Dakota, water- and wastewater-treatment plants.............................46

8. Analytical results for water-quality samples collected from the East 

Grand Forks, Minnesota, water- and wastewater-treatment plants .................................54

9. Analytical results for quality-assurance/quality-control field blank sample ...................62

10. Analytical results and relative standard deviations for qualityassurance/quality-control replicate samples for select water- and 

wastewater-treatment plants within the Red River of the North Basin, 

North Dakota and Minnesota ...................................................................................................63
iv

Conversion Factors

Multiply By To obtain

Length

mile (mi) 1.609 kilometer (km)

Flow rate

cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s)

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

°F=(1.8×°C)+32

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 for Water- and WastewaterTreatment Plants Along the Red River of the North, North 

Dakota and Minnesota, January through October 2006

By William C. Damschen, John A. Hansel, and Rochelle A. Nustad

2006, Reclamation needed more detailed information on additional constituents during extremely low flow conditions. As 

a result, a second study was conducted to develop and apply a 

dynamic water-quality model to simulate the transport of total 

dissolved solids, sulfate, chloride, sodium, and total phosphorus during extremely low flow conditions such as those that 

occurred from September 1976 through August 1977 (Nustad 

and Bales, 2006). During this 12-month period, monthly mean 

streamflows at the Red River of the North at Fargo gaging station ranged from 3.77 ft3

/s (October 1976) to 194 ft3/s (April 

1977; U.S. Geological Survey, 1978). As part of the 2006 

dynamic model, water-quality data from existing municipal 

water- and wastewater-treatment plants were used to develop 

water-quality boundary conditions for return flows from the 

major municipalities that were included in the model (Nustad 

and Bales, 2006). In support of this model, the USGS, in 

cooperation with Reclamation, collected water-quality samples 

from January through October, 2006 at major municipal waterand wastewater-treatment plants along the Red River. Municipalities included in the sampling effort were Wahpeton, Fargo, 

West Fargo, and Grand Forks, North Dakota; and Breckenridge, Moorhead, and East Grand Forks, Minnesota (fig. 1). 

This report describes the data-collection methods and presents 

the data from the collection effort.

The collection of samples from the water-treatment 

plants was possible through the cooperation of Jeff Muehler 

and staff, Breckenridge Public Utilities; Gary Hultberg and 

staff, East Grand Forks Water Treatment Plant; Dean Sletten 

and staff, Fargo Water Treatment Plant; Hazel Sletten and 

staff, Grand Forks Water Treatment Plant; Troy Hall and 

staff, Moorhead Water Treatment Plant; Leo Murr and staff, 

Wahpeton Water Treatment Plant; and Tom Moores, city of 

West Fargo Public Works. The collection of samples from the 

wastewater-treatment plants was possible through the cooperation of Jeff Muehler and staff, Breckenridge Public Utilities; 

Mark Kotebra and staff, city of East Grand Forks Public 

Works; Mark Blonigen and staff, Fargo Wastewater Treatment 

Plant; Don Tucker and staff, Grand Forks Wastewater Treatment Plant; Andy Bradshaw and staff, Moorhead Wastewater 

Treatment Facility; Don Wald, Wahpeton Water and Sewer; 

and Terry Rust, city of West Fargo Public Works.

Abstract

From January through October 2006, six sets of waterquality samples were collected at 28 sites, which included 

inflow and outflow from seven major municipal watertreatment plants (14 sites) and influent and effluent samples 

from seven major municipal wastewater treatment plants 

(14 sites) along the Red River of the North in North Dakota 

and Minnesota. Samples were collected in cooperation with 

the Bureau of Reclamation for use in the development of 

return-flow boundary conditions in a 2006 water-quality 

model for the Red River of the North. All samples were 

analyzed for nutrients and major ions. For one set of effluent 

samples from each of the wastewater-treatment plants, water 

was analyzed for Eschirichia coli, fecal coliform, 20-day 

biochemical oxygen demand, 20-day nitrogenous biochemical 

oxygen demand, total organic carbon, and dissolved organic 

carbon. In general, results from the field equipment blank and 

replicate samples indicate that the overall process of sample 

collection, processing, and analysis did not introduce substantial contamination and that consistent results were obtained.

Introduction

The Bureau of Reclamation (Reclamation) is preparing 

an Environmental Impact Statement (EIS) for the Red River 

Valley Water Supply Project (Red River Valley Supply Project, 

2007). To provide information for the EIS, two water-quality 

modeling studies were conducted by the U.S. Geological 

Survey (USGS) in cooperation with Reclamation. In 2005, a 

steady state water-quality model was developed and applied 

for part of the Red River Basin (Bales and Nustad, 2005). 

This steady state water-quality model simulated the transport 

of total dissolved solids, sulfate, and chloride as conservative constituents in the Red River of the North (hereinafter 

referred to as the Red River) under the low-flow conditions 

that occurred during September 2003. For September 2003, 

the mean streamflow at the Red River of the North at Fargo 

gaging station was 106 ft3/s (Robinson and others, 2004). In 
2 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Figure 1. Locations of sampling sites in the Red River of the North Basin, North Dakota and Minnesota.

Red

River

of

the

North

N O R T H D A K O T A M I N N E S O T A

M A N I T O B A

S O U T H D A K O T A

99° 97°

95°

95°

49°

47° 47°

49°

97°

99°

Base from U.S. Geological Survey

1:2,000,000, 1972

Baldhill

Dam

Orwell Dam

EXPLANATION

INDEX MAP

Red River

of the

North Basin

SASKATCHEWAN MANITOBA

CANADA

UNITED STATES

ONTARIO

Lake Traverse

Mud Lake White Rock Dam

Reservation Dam

Winnipeg

Nelson

R.

Red

River

of

the

North

Lake Winnipeg

HUDSON

BAY

NORTH DAKOTA

SOUTH DAKOTA

MINNESOTA

GRAND 

FORKS

FARGO

MOORHEAD

WAHPETON BRECKENRIDGE

WEST FARGO

FORKS

Upper

Red

Lake Devils

Lake

River

River

River

Wild Rice

River River

River

Rabbit R

Mustinka R

Pelican

Tail

Otter

Orwell Reservoir

River

River

River

River

Tongue

Pembina

River

Roseau

Two

River

Middle

Tamarac

Thief

Red

Lake

Snake

Park

Rice

Marsh River

River

Sand Hill

Wild

Buffalo

R

River

River

Elm

Goose

Maple

Rush

Stump

Lake

Lake

Ashtabula

Beaver

Baldhill

Creek

Creek

Lower

Red

Lake

Peterson Coulee

0 20 40 60 MILES

0 20 40 60 KILOMETERS

EAST GRAND

Water and wastewater sample collection 

 locations

FARGO

Sheyenne

Forest

River

River

River

River

River

RiverSouth

Branch

North

Branch

Bois de Sioux River

Red River of the North Basin boundary
Water-Quality Data 3

Data Collection

During January through October 2006, six sets of waterquality samples were collected at 28 sites, which included 

inflow and outflow samples from seven municipal watertreatment plants (14 sites) and influent and effluent samples 

from seven municipal wastewater-treatment plants (14 sites) 

along the Red River (table 1). Inflow samples for watertreatment plants are representative of the municipality’s source 

water before treatment, and were typically collected from 

a tap (table 1). Outflow samples for water-treatment plants 

were collected at the last location in the plant before treated 

water is released into the water-distribution system and were 

also typically collected from a tap (table 1). Influent samples 

for wastewater-treatment plants were collected either at a lift 

station before water enters the plant or inside the plant from 

samples collected by plant staff (table 1). Effluent samples for 

wastewater-treatment plants were collected at the last location in the plant before water is discharged to the Red River 

(table 1). Water-quality samples were collected according to 

protocols described by the U.S. Geological Survey (U.S. Geological Survey, variously dated).

All samples were analyzed for unfiltered and filtered 

nutrients (tables 2–8). Also, all samples were analyzed for 

major ions, but samples collected on or before June 13, 2006, 

were analyzed for unfiltered major ions and samples collected 

after June 13 were analyzed for filtered major ions. For one 

set of effluent samples from each of the wastewater-treatment 

plants, water was analyzed for Eschirichia coli, fecal coliform, 

20-day biochemical oxygen demand, 20-day nitrogenous biochemical oxygen demand, total organic carbon, and dissolved 

organic carbon. All constituents were analyzed by the North 

Dakota Department of Health Laboratory using 

U.S. Environmental Protection Agency standard analytical 

methods (James Quarnstrom, North Dakota Department of 

Health Laboratory, written commun., 2007).

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

collected and analyzed to assess the accuracy and precision 

of the collected data. One field-equipment blank sample and 

15 replicate samples were collected from January through 

October 2006 and analyzed along with the water-quality (environmental) samples (tables 9 and 10). The blank sample and 

replicates samples combined represent about 10 percent of the 

environmental samples that were collected.

Blank samples provide information on potential effects 

on analytical results from contamination during collection, 

processing, and laboratory analysis. The blank sample for 

this study was a field-equipment blank, which consists of an 

aliquot of deionized water processed through the sampling 

equipment that is used to collect environmental samples. The 

blank is then subjected to the same processing as the environmental samples. Concentrations of most constituents in the 

field-equipment blank were less than or approximately equal 

to the respective analytical reporting level (table 9). Acid neutralizing capacity, bicarbonate, dissolved solids, and filtered 

iron were detected at concentrations close to the reporting 

level and much less than the minimum concentrations in the 

environmental samples. The contamination for these constituents probably did not affect study results. Filtered fluoride 

was detected in the blank sample at a concentration within the 

range of environmental sample concentrations. Because there 

is only a single blank sample it cannot be determined if the 

fluoride contamination was systemic. Also, because fluoride 

was not simulated in the water-quality modeling study, this 

contamination did not substantially affect development of 

return-flow boundary conditions. In general, results from 

the field equipment blank indicate that the overall process of 

sample collection, processing, and analysis did not introduce 

substantial contamination.

Replicate samples provide information on the precision 

or reproducibility of analytical results. For this study, replicate 

samples were obtained in the field by repeating the collection process to obtain two independent composite samples. 

The precision of analytical results for the constituents was 

determined by calculating the relative standard deviation of 

the differences in concentrations between replicate analyses 

for several sets of samples (Dodge and others, 2007, p. 9). 

A relative standard deviation of 20 percent or less has been 

considered as an acceptable level of precision (Dodge and 

others, 2007; Sando and others, 2007). Most constituents had 

relative standard deviations less than 20 percent, and many had 

relative standard deviations of 10 percent or less. Filtered iron; 

filtered and unfiltered nitrite plus nitrate; and total suspended 

solids had relative standard deviations greater than 20 percent. Because these constituents were not simulated in the 

water-quality modeling study, they did not affect study results. 

Generally, results for replicate samples indicate that the overall 

process of sample collection, processing, and analysis produced consistent results.

Water-Quality Data

Tables 2–10 provide water-quality data for water- and 

wastewater-treatment plants along the Red River of the North 

in North Dakota and Minnesota during January through 

October 2006. Environmental sample data and QA/QC data 

are electronically stored and on file at the USGS North Dakota 

Water Science Center, Bismarck, North Dakota.
4 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North Table 1. Locations of sampling sites in the Red River of the North Basin, North Dakota and Minnesota.—Continued Site number Site name Source water for water-treatment plant or type of treatment and frequency of discharge from the wastewater-treatment plant Description of sample collection location 461604096351900 Water-treatment plant inflow at Breckenridge, Minnesota Ground water Source water tap inside wastewater-treatment plant 461605096352000 Water-treatment plant outflow at Brecken- ridge, Minnesota Sample water tap before treated water is released into the water distri- bution system 461557096353500 Wastewater-treatment plant influent at Breck- enridge, Minnesota Secondary treatment, intermittent discharge Second Street lift station 461834096333400 Wastewater-treatment plant effluent at Breck- enridge, Minnesota Final pond of lagoon system on 2/7/2006 and 3/1/2006 when waste- water was not being discharged from the lagoon system; Discharge pipe for remaining samples when wastewater was being discharged from lagoon system 461921096363800 Water-treatment plant inflow at Wahpeton, North Dakota Ground water Source water tap inside wastewater-treatment plant 461922096363900 Water-treatment plant outflow at Wahpeton, North Dakota Sample water tap before water goes into the water distribution system 461749096363800 Wastewater-treatment plant influent at Wah- peton Secondary treatment, intermittent discharge Cell #1, primary influent pond 462009096371600 Wastewater-treatment plant effluent at Wah- peton Final pond of lagoon system on 2/7/2006 and 3/1/2006 when waste- water was not being discharged from the lagoon system; Discharge pipe for remaining samples when wastewater was being discharged from lagoon system 465134096471100 Water-treatment plant inflow at Fargo, North Dakota Red River of the North/Sheyenne River Source water tap inside wastewater-treatment plant 465135096471200 Water-treatment plant outflow at Fargo, North Dakota Sample water tap before water goes into the water distribution system 465520096471500 Wastewater-treatment plant influent at Fargo, North Dakota Tertiary treatment, continuous discharge Twenty-four hour composite sample 465529096471400 Wastewater-treatment plant effluent at Fargo, 

North Dakota

Twenty-four hour composite sample

465308096545800 Water-treatment plant inflow at West Fargo, 

North Dakota

Ground water

Hose connected to source water tap in well house

465309096545700 Water-treatment plant outflow at West Fargo, 

North Dakota

Hose connected to sample water tap in well house before water is 

released into the water distribution system
Water-Quality Data 

5

Table 1. Locations of sampling sites in the Red River of the North Basin, North Dakota and Minnesota.—Continued

Site number Site name

Source water for water-treatment 

plant or type of treatment and 

frequency of discharge from the 

wastewater-treatment plant

Description of sample 

collection location

465337096553300 Wastewater-treatment plant influent at West 

Fargo, North Dakota

Secondary treatment, intermittent 

discharge

Lift station

465355096553600 Wastewater-treatment plant effluent at West 

Fargo, North Dakota

Final pond of lagoon system on 1/25/2006 and 2/28/2006 when wastewater was not being discharged from the lagoon system; Discharge 

pipe for remaining samples when wastewater was being discharged from lagoon system 

465242096443800 Water-treatment plant inflow at Moorhead, 

Minnesota

Red River of the North/Ground water

Source water tap inside wastewater-treatment plant

465241096443700 Water-treatment plant outflow at Moorhead, 

Minnesota

Sample water tap before water goes into the water distribution system 

465340096441500 Wastewater-treatment plant influent at Moorhead, Minnesota Tertiary treatment, continuous 

discharge

Twenty-four hour composite sample

465339096441600 Wastewater-treatment plant effluent at Moorhead, Minnesota Twenty-four hour composite sample475517097011600 Water-treatment plant inflow at Grand Forks, 

North Dakota Red Lake River/Red River of the 

North

Source water tap inside wastewater-treatment plant

475516097012400 Water-treatment plant outflow at Grand Forks, 

North Dakota

Sample water tap before water into the water distribution system 

475708097083800 Wastewater-treatment plant influent at Grand 

Forks, North Dakota

Secondary treatment, intermittent 

discharge

Primary influent pond; Tweny-four hour composite sample on 

2/27/2006 and 7/20/2006

475704097075500 Wastewater-treatment plant effluent at Grand 

Forks, North Dakota

Final pond of lagoon system on 1/24/2006 and 2/27/2006 when wastewater was not being discharged from the lagoon system; Discharge 

pipe for remaining samples when wastewater was being discharged from lagoon system 

475525097003500 Water-treatment plant inflow at East Grand 

Forks, Minnesota

Red Lake River

Source water tap inside wastewater-treatment plant

475526097003400 Water-treatment plant outflow at East Grand 

Forks, Minnesota

Sample water tap before water goes into the water distribution system 

475608097015300 Wastewater-treatment plant influent at East 

Grand Forks, Minnesota

Secondary treatment, intermittent 

discharge

Lift station

475828097031500 Wastewater-treatment plant effluent at East 

Grand Forks, Minnesota

Final pond of lagoon system on 1/24/2006 and 2/27/2006 when wastewater was not being discharged from the lagoon system; Discharge 

pipe for remaining samples when wastewater was being discharged from lagoon system 
6 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Turbidity

(NTRU)

pH, field

(standard 

unit)

Specific 

conductance, field

(μS/cm at 

25°C)

Water 

temperature 

(°C)

Hardness

(mg/L as 

CaCO3)

Noncarbonate 

hardness

(mg/L as 

CaCO3) 

Water-treatment plant inflow

461604096351900 02/07/06 0955 -- 7.7 995 8.7 430 48

461604096351900 03/01/06 0805 -- 7.6 982 7.9 440 60

461604096351900 05/09/06 0800 17 7.6 1,020 10.3 400 --

461604096351900 07/19/06 1220 22 7.5 1,000 13.1 420 30

461604096351900 08/28/06 0935 17 7.5 992 13.3 400 11

461604096351900 10/30/06 1315 18 7.6 992 9.5 410 14

Water-treatment plant outflow

461605096352000 02/07/06 1000 -- 9.2 525 8.2 130 43

461605096352000 03/01/06 0800 -- 9.2 530 4.5 140 49

461605096352000 05/09/06 0810 1.8 9.6 564 10.7 140 --

461605096352000 07/19/06 1230 1.4 9.2 533 12.8 120 48

461605096352000 08/28/06 0930 1.3 9.4 544 13.4 120 38

461605096352000 10/30/06 1320 2.2 9.2 537 10.4 130 48

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 -- 8.0 3,010 2.0 1,300 890

461557096353500 03/01/06 0830 -- 8.1 2,610 8.9 970 610

461557096353500 05/09/06 0830 65 7.7 3,560 14.5 1,700 --

461557096353500 07/19/06 1140 110 7.7 2,360 20 850 520

461557096353500 08/28/06 1050 230 7.6 2,400 19.7 850 490

461557096353500 10/30/06 1330 120 8.0 2,240 15.3 840 500

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 -- 8.0 3,260 10.2 1,500 1,100

461834096333400 03/01/06 0845 -- 8.4 3,580 1.0 1,800 1,400

461834096333400 05/09/06 0840 18 9.2 2,340 17.5 990 --

461834096333400 07/19/06 1200 60 8.6 3,160 24.5 1,500 1,100

461834096333400 08/28/06 1100 82 9.2 3,210 22.7 1,500 1,200

461834096333400 10/30/06 1345 36 8.9 2,820 6.2 1,300 930
Water-Quality Data 7

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Calcium,

filtered

(mg/L)

Calcium,

unfiltered

recoverable

(mg/L)

Magnesium,

filtered

(mg/L)

Magnesium,

unfiltered

recoverable

(mg/L)

Potassium,

filtered

(mg/L)

Potassium,

unfiltered

recoverable

(mg/L)

Water-treatment plant inflow

461604096351900 02/07/06 0955 -- 106 -- 41.0 -- 6.5

461604096351900 03/01/06 0805 -- 108 -- 41.5 -- 6.7

461604096351900 05/09/06 0800 -- 95.4 -- 39.9 -- 6.4

461604096351900 07/19/06 1220 100 -- 40.3 -- 7.09 --

461604096351900 08/28/06 0935 94.2 -- 40.1 -- 6.82 --

461604096351900 10/30/06 1315 100 -- 38.6 -- 6.00 --

Water-treatment plant outflow

461605096352000 02/07/06 1000 -- 30.7 -- 13.1 -- 6.5

461605096352000 03/01/06 0800 -- 28.5 -- 17.0 -- 6.5

461605096352000 05/09/06 0810 -- 26.1 -- 19.5 -- 7.4

461605096352000 07/19/06 1230 22.6 -- 16.7 -- 6.58 --

461605096352000 08/28/06 0930 27.7 -- 12.1 -- 6.84 --

461605096352000 10/30/06 1320 28.3 -- 13.4 -- 6.04 --

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 -- 172 -- 204 -- 17.2

461557096353500 03/01/06 0830 -- 131 -- 156 -- 16.9

461557096353500 05/09/06 0830 -- 222 -- 273 -- 14.7

461557096353500 07/19/06 1140 117 -- 136 -- 17.4 --

461557096353500 08/28/06 1050 116 -- 135 -- 18.7 --

461557096353500 10/30/06 1330 120 -- 130 -- 17.8 --

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 -- 191 -- 244 -- 20.3

461834096333400 03/01/06 0845 -- 236 -- 291 -- 23.6

461834096333400 05/09/06 0840 -- 130 -- 161 -- 13.4

461834096333400 07/19/06 1200 192 -- 246 -- 21.8 --

461834096333400 08/28/06 1100 171 -- 265 -- 26.5 --

461834096333400 10/30/06 1345 158 -- 210 -- 18.0 --
8 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Sodium 

adsorption 

ratio

(number)

Sodium 

fraction of 

cations 

(percent in 

equivalents of 

major cations)

Sodium,

filtered

(mg/L)

Sodium,

unfiltered

recoverable

(mg/L)

ANC,

unfiltered

(mg/L as 

CaCO3)

Bicarbonate,

unfiltered

(mg/L)

Water-treatment plant inflow

461604096351900 02/07/06 0955 1.1 21 -- 53.6 385 469

461604096351900 03/01/06 0805 1.1 21 -- 54.0 379 463

461604096351900 05/09/06 0800 1.1 21 -- 49.5 395 482

461604096351900 07/19/06 1220 1.1 21 50.3 -- 385 470

461604096351900 08/28/06 0935 1.2 24 57.3 -- 389 474

461604096351900 10/30/06 1315 1.0 20 46.9 -- 393 480

Water-treatment plant outflow

461605096352000 02/07/06 1000 2.0 45 -- 53.3 87 67

461605096352000 03/01/06 0800 1.9 43 -- 52.6 92 76

461605096352000 05/09/06 0810 1.8 41 -- 50.1 103 75

461605096352000 07/19/06 1230 1.9 46 50.3 -- 78 64

461605096352000 08/28/06 0930 2.2 50 55.3 -- 81 64

461605096352000 10/30/06 1320 1.8 45 46.9 -- 79 73

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 2.8 28 -- 230 386 471

461557096353500 03/01/06 0830 2.9 31 -- 204 363 443

461557096353500 05/09/06 0830 2.4 22 -- 221 442 540

461557096353500 07/19/06 1140 2.5 30 165 -- 332 405

461557096353500 08/28/06 1050 3.0 34 197 -- 353 430

461557096353500 10/30/06 1330 2.3 28 153 -- 335 409

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 2.9 27 -- 254 364 444

461834096333400 03/01/06 0845 3.0 26 -- 297 441 537

461834096333400 05/09/06 0840 2.3 26 -- 164 274 225

461834096333400 07/19/06 1200 2.6 25 234 -- 390 399

461834096333400 08/28/06 1100 3.5 31 311 -- 361 238

461834096333400 10/30/06 1345 2.6 27 213 -- 330 363
Water-Quality Data 9

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Silica,

unfiltered

(mg/L)

Water-treatment plant inflow

461604096351900 02/07/06 0955 <1 <1 10.3 0.41 -- 27.5

461604096351900 03/01/06 0805 <1 <1 10.5 .38 -- 29.6

461604096351900 05/09/06 0800 <1 <1 10.3 .40 -- 31.1

461604096351900 07/19/06 1220 <1 <1 10.2 .35 31.4 --

461604096351900 08/28/06 0935 <1 <1 10.1 .35 29.2 --

461604096351900 10/30/06 1315 <1 <1 10.2 .42 28.1 --

Water-treatment plant outflow

461605096352000 02/07/06 1000 20 <1 12.5 1.19 -- 12.7

461605096352000 03/01/06 0800 18 <1 13.5 1.14 -- 13.0

461605096352000 05/09/06 0810 25 <1 13.9 1.20 -- 15.3

461605096352000 07/19/06 1230 15 <1 14.7 1.25 14.3 --

461605096352000 08/28/06 0930 17 <1 14.8 1.19 11.6 --

461605096352000 10/30/06 1320 11 <1 15.8 1.18 11.5 --

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 <1 <1 109 .90 -- 21.6

461557096353500 03/01/06 0830 <1 <1 132 .91 -- 17.2

461557096353500 05/09/06 0830 <1 <1 96.6 .81 -- 23.8

461557096353500 07/19/06 1140 <1 <1 78.4 1.17 20.6 --

461557096353500 08/28/06 1050 <1 <1 82.9 5.78 19.1 --

461557096353500 10/30/06 1330 <1 <1 74.0 .96 18.6 --

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 <1 <1 116 .83 -- 11.7

461834096333400 03/01/06 0845 <1 <1 139 .92 -- 15.6

461834096333400 05/09/06 0840 54 <1 79.4 .59 -- 9.7

461834096333400 07/19/06 1200 38 <1 110 .71 44.3 --

461834096333400 08/28/06 1100 100 <1 115 .55 36.7 --

461834096333400 10/30/06 1345 20 <1 108 .72 14.4 --
10 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Sulfate,

filtered

(mg/L)

Dissolved 

solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia 

plus 

organic 

nitrogen,

filtered

(mg/L as N)

Ammonia 

plus 

organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Water-treatment plant inflow

461604096351900 02/07/06 0955 152 603 <5 1.5 1.3 1.35

461604096351900 03/01/06 0805 153 604 -- 1.4 1.5 1.41

461604096351900 05/09/06 0800 152 593 <5 1.6 1.4 1.49

461604096351900 07/19/06 1220 153 620 <5 1.5 1.3 1.21

461604096351900 08/28/06 0935 151 626 <5 1.5 1.4 1.18

461604096351900 10/30/06 1315 156 620 <5 1.4 1.4 1.3

Water-treatment plant outflow

461605096352000 02/07/06 1000 151 324 <5 .94 .88 .826

461605096352000 03/01/06 0800 152 329 -- 1.1 .82 .746

461605096352000 05/09/06 0810 150 332 <5 .86 .79 .771

461605096352000 07/19/06 1230 152 329 <5 .71 .61 .539

461605096352000 08/28/06 0930 150 335 <5 .68 .67 .557

461605096352000 10/30/06 1320 154 334 <5 .47 .44 .437

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 1,280 2,250 118 36 39 24.1

461557096353500 03/01/06 0830 983 1,840 -- 45 50 30.8

461557096353500 05/09/06 0830 1,730 2,830 132 32 34 17.2

461557096353500 07/19/06 1140 897 1,460 167 34 40 31.2

461557096353500 08/28/06 1050 870 1,490 317 33 43 2.65

461557096353500 10/30/06 1330 869 1,440 157 33 36 26.1

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 1,510 2,560 9 3.9 4.2 1.34

461834096333400 03/01/06 0845 1,740 2,990 -- 2.4 5.3 2.24

461834096333400 05/09/06 0840 982 1,700 22 2.8 3.6 .449

461834096333400 07/19/06 1200 1,500 1,920 48 3.7 3.7 .920

461834096333400 08/28/06 1100 1,560 1,980 72 2.2 2.1 .011

461834096333400 10/30/06 1345 1,290 1,750 48 4.5 4.8 1.95
Water-Quality Data 11

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate,

unfiltered

(mg/L as N)

Total 

nitrogen,

filtered

(mg/L)

Total 

nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Water-treatment plant inflow

461604096351900 02/07/06 0955 1.25 <0.020 <0.020 1.48 1.35 0.017

461604096351900 03/01/06 0805 1.44 <.020 .02 1.47 1.49 .033

461604096351900 05/09/06 0800 1.39 .021 .02 1.66 1.45 .050

461604096351900 07/19/06 1220 1.21 <.020 <.020 1.50 1.36 <.004

461604096351900 08/28/06 0935 1.24 .022 .02 1.50 1.43 .020

461604096351900 10/30/06 1315 1.34 .030 .05 1.47 1.40 .004

Water-treatment plant outflow

461605096352000 02/07/06 1000 .80 .549 .54 1.49 1.42 .302

461605096352000 03/01/06 0800 .79 .615 .60 1.69 1.42 .329

461605096352000 05/09/06 0810 .79 .570 .54 1.43 1.33 .332

461605096352000 07/19/06 1230 .55 .715 .72 1.43 1.33 .329

461605096352000 08/28/06 0930 .58 .762 .78 1.44 1.45 .311

461605096352000 10/30/06 1320 .49 .809 .78 1.28 1.22 .206

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 31.4 .590 .02 36.8 38.9 3.86

461557096353500 03/01/06 0830 28.6 .281 .24 45.3 50.0 5.01

461557096353500 05/09/06 0830 17.0 1.25 1.18 33.1 34.9 3.37

461557096353500 07/19/06 1140 31.7 .028 .03 34.4 39.7 3.93

461557096353500 08/28/06 1050 3.17 .020 .03 32.6 43.1 3.86

461557096353500 10/30/06 1330 26.0 .202 .19 32.9 36.2 3.02

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 1.25 <.020 .02 3.91 4.20 2.57

461834096333400 03/01/06 0845 2.58 <.020 .02 2.42 5.32 1.93

461834096333400 05/09/06 0840 .473 .066 .07 2.90 3.68 .828

461834096333400 07/19/06 1200 .940 .162 .16 3.86 3.90 2.02

461834096333400 08/28/06 1100 <.01 .045 .04 2.27 2.18 .492

461834096333400 10/30/06 1345 1.86 .052 .05 4.54 4.88 .531
12 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Phosphorus,

unfiltered

(mg/L)

Organic 

carbon,

filtered

(mg/L)

Organic 

carbon,

unfiltered

(mg/L)

BOD,

20-day

(mg/L)

BOD,

5-day

(mg/L)

Escherichia 

coli

(colonies per 

100 mL)

Water-treatment plant inflow

461604096351900 02/07/06 0955 0.104 -- -- -- <40.0 <10

461604096351900 03/01/06 0805 .106 -- -- -- -- --

461604096351900 05/09/06 0800 .117 -- -- -- -- --

461604096351900 07/19/06 1220 .064 -- -- -- -- --

461604096351900 08/28/06 0935 .080 -- -- -- -- --

461604096351900 10/30/06 1315 .067 -- -- -- -- --

Water-treatment plant outflow

461605096352000 02/07/06 1000 .301 -- -- -- <6.0 <10

461605096352000 03/01/06 0800 .305 -- -- -- -- --

461605096352000 05/09/06 0810 .344 -- -- -- -- --

461605096352000 07/19/06 1230 .323 -- -- -- -- --

461605096352000 08/28/06 0930 .315 -- -- -- -- --

461605096352000 10/30/06 1320 .201 -- -- -- -- --

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 4.89 -- -- -- 74 <10

461557096353500 03/01/06 0830 9.52 -- -- -- -- --

461557096353500 05/09/06 0830 4.35 -- -- -- -- --

461557096353500 07/19/06 1140 5.64 -- -- -- -- --

461557096353500 08/28/06 1050 7.13 -- -- -- -- --

461557096353500 10/30/06 1330 4.40 -- -- -- -- --

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 2.74 -- -- -- <40.0 <10

461834096333400 03/01/06 0845 4.08 -- -- -- -- --

461834096333400 05/09/06 0840 1.08 15.9 17.6 34 -- <10

461834096333400 07/19/06 1200 2.29 -- -- -- -- --

461834096333400 08/28/06 1100 .737 -- -- -- -- --

461834096333400 10/30/06 1345 .704 -- -- -- -- 70
Water-Quality Data 13

Table 2. Analytical results for water-quality samples collected from the Breckenridge, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Fecal coliform

(colonies per 

100 mL)

Iron,

filtered

(μg/L)

Iron,

unfiltered

recoverable

(μg/L)

Manganese,

filtered

(μg/L)

Manganese,

unfiltered

recoverable

(μg/L)

NBOD,

20-day

(mg/L)

Water-treatment plant inflow

461604096351900 02/07/06 0955 <10 -- 2,510 -- 160 --

461604096351900 03/01/06 0805 -- -- 460 -- 160 --

461604096351900 05/09/06 0800 -- -- 1,740 -- 150 --

461604096351900 07/19/06 1220 -- 827 -- 148 -- --

461604096351900 08/28/06 0935 -- 785 -- 145 -- --

461604096351900 10/30/06 1315 -- 415 -- 150 -- --

Water-treatment plant outflow

461605096352000 02/07/06 1000 <10 -- <10 -- <10 --

461605096352000 03/01/06 0800 -- -- 60 -- <10 --

461605096352000 05/09/06 0810 -- -- 240 -- <10 --

461605096352000 07/19/06 1230 -- 17 -- <10 -- --

461605096352000 08/28/06 0930 -- <10 -- <10 -- --

461605096352000 10/30/06 1320 -- 13 -- <10 -- --

Wastewater-treatment plant influent

461557096353500 02/07/06 1115 >1,600 -- 360 -- 940 --

461557096353500 03/01/06 0830 -- -- 200 -- 150 --

461557096353500 05/09/06 0830 -- -- 1,960 -- 200 --

461557096353500 07/19/06 1140 -- 182 -- 188 -- --

461557096353500 08/28/06 1050 -- 86 -- 192 -- --

461557096353500 10/30/06 1330 -- 127 -- 163 -- --

Wastewater-treatment plant effluent

461834096333400 02/07/06 1055 <10 -- 1,040 -- 290 --

461834096333400 03/01/06 0845 -- -- 200 -- 1,240 --

461834096333400 05/09/06 0840 <10 -- 480 -- 250 10.2

461834096333400 07/19/06 1200 -- 105 -- 470 -- --

461834096333400 08/28/06 1100 -- 55 -- 20 -- --

461834096333400 10/30/06 1345 80 48 -- 64 -- --
14 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Turbidity

(NTRU)

pH, field

(standard 

unit)

Specific 

conductance, 

field

(μS/cm at 

25°C)

Water 

temperature 

(°C)

Hardness

(mg/L as 

CaCO3)

Noncarbonate 

hardness

(mg/L as 

CaCO3)

Water-treatment plant inflow

461921096363800 02/07/06 1305 -- 8.7 1,030 8.8 420 25

461921096363800 03/01/06 1105 -- 7.4 995 8.4 440 45

461921096363800 05/23/06 1105 18 7.5 1,020 12 440 --

461921096363800 06/13/06 0855 19 7.4 995 9.9 410 --

461921096363800 07/19/06 0825 25 7.5 1,020 22.5 410 27

461921096363800 08/28/06 1245 50 7.6 921 23.4 310 0

Water-treatment plant outflow

461922096363900 02/07/06 1310 -- 7.4 548 8.1 120 40

461922096363900 03/01/06 1055 -- 9.1 557 9.0 150 47

461922096363900 05/23/06 1100 <1.0 8.9 587 12.1 160 --

461922096363900 06/13/06 0805 <1.0 9.1 600 12.3 160 --

461922096363900 07/19/06 0820 <1.0 8.7 588 12.3 120 30

461922096363900 08/28/06 1240 1.1 8.9 597 11.7 110 5

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 -- 7.7 2,120 3.3 710 440

461749096363800 03/01/06 1210 -- 7.2 2,000 4.1 650 380

461749096363800 05/23/06 1130 61 7.7 2,860 18.2 1,300 --

461749096363800 06/13/06 0925 120 7.7 2,430 19.3 930 --

461749096363800 07/19/06 0850 100 7.5 2,050 23.2 670 350

461749096363800 08/28/06 1400 58 8.6 2,270 24.1 590 350

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 -- 7.2 2,780 .8 980 540

462009096371600 03/01/06 1200 -- 7.2 2,760 .8 1,000 560

462009096371600 05/23/06 1115 50 8.6 2,050 19.6 750 --

462009096371600 06/13/06 0820 24 8.6 2,040 20.0 690 --

462009096371600 07/19/06 0840 14 8.3 2,920 22.8 1,300 850

462009096371600 08/28/06 1350 30 8.5 2,750 23.1 1,100 680
Water-Quality Data 15

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Calcium,

filtered

(mg/L)

Calcium,

unfiltered

recoverable

(mg/L)

Magnesium,

filtered

(mg/L)

Magnesium,

unfiltered

recoverable

(mg/L)

Potassium,

filtered

(mg/L)

Potassium,

unfiltered

recoverable

(mg/L)

Water-treatment plant inflow

461921096363800 02/07/06 1305 -- 103 -- 40 -- 7.0

461921096363800 03/01/06 1105 -- 107 -- 40.8 -- 7.0

461921096363800 05/23/06 1105 -- 110 -- 41.4 -- 11.4

461921096363800 06/13/06 0855 -- 99.5 -- 38.2 -- 8.0

461921096363800 07/19/06 0825 102 -- 38.6 -- 7.68 --

461921096363800 08/28/06 1245 70.6 -- 33.3 -- 7.03 --

Water-treatment plant outflow

461922096363900 02/07/06 1310 -- 18.5 -- 17.7 -- 7.4

461922096363900 03/01/06 1055 -- 24.0 -- 21.5 -- 7.3

461922096363900 05/23/06 1100 -- 32.5 -- 18.4 -- 12.0

461922096363900 06/13/06 0805 -- 20.6 -- 27 -- 8.6

461922096363900 07/19/06 0820 13.4 -- 20.3 -- 8.39 --

461922096363900 08/28/06 1240 12.1 -- 20.2 -- 7.61 --

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 -- 123 -- 97.6 -- 34.3

461749096363800 03/01/06 1210 -- 109 -- 91.9 -- 35.9

461749096363800 05/23/06 1130 -- 214 -- 183 -- 26.7

461749096363800 06/13/06 0925 -- 158 -- 130 -- 27.1

461749096363800 07/19/06 0850 114 -- 93.3 -- 32.2 --

461749096363800 08/28/06 1400 79.1 -- 94.7 -- 27.1 --

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 -- 166 -- 137 -- 39.7

462009096371600 03/01/06 1200 -- 170 -- 139 -- 41.9

462009096371600 05/23/06 1115 -- 131 -- 102 -- 31.0

462009096371600 06/13/06 0820 -- 117 -- 97.1 -- 32.4

462009096371600 07/19/06 0840 216 -- 188 -- 34.6 --

462009096371600 08/28/06 1350 170 -- 167 -- 37.4 --
16 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sodium 

adsorption 

ratio

(number)

Sodium 

fraction of 

cations 

(percent in 

equivalents of 

major cations)

Sodium,

filtered

(mg/L)

Sodium,

unfiltered

recoverable

(mg/L)

ANC,

unfiltered

(mg/L as 

CaCO3)

Bicarbonate,

unfiltered

(mg/L)

Water-treatment plant inflow

461921096363800 02/07/06 1305 1.3 23 -- 60.1 396 483

461921096363800 03/01/06 1105 1.2 22 -- 56.8 389 475

461921096363800 05/23/06 1105 1.1 20 -- 52.9 392 478

461921096363800 06/13/06 0855 1.1 21 -- 50.0 383 467

461921096363800 07/19/06 0825 1.2 23 56.5 -- 386 471

461921096363800 08/28/06 1245 1.4 28 57.5 -- 399 487

Water-treatment plant outflow

461922096363900 02/07/06 1310 2.3 50 -- 58.7 79 81

461922096363900 03/01/06 1055 2.0 43 -- 55.7 101 81

461922096363900 05/23/06 1100 1.9 40 -- 53.9 107 114

461922096363900 06/13/06 0805 1.7 38 -- 50.2 121 114

461922096363900 07/19/06 0820 2.6 54 64.3 -- 87 95

461922096363900 08/28/06 1240 2.4 53 59.3 -- 108 114

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 2.9 34 -- 176 265 323

461749096363800 03/01/06 1210 2.8 34 -- 164 276 337

461749096363800 05/23/06 1130 2.3 24 -- 189 435 531

461749096363800 06/13/06 0925 2.2 26 -- 157 505 617

461749096363800 07/19/06 0850 2.6 34 157 -- 315 385

461749096363800 08/28/06 1400 4.3 47 241 -- 234 286

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 3.1 32 -- 226 439 536

462009096371600 03/01/06 1200 3.1 32 -- 227 435 531

462009096371600 05/23/06 1115 2.5 30 -- 157 272 332

462009096371600 06/13/06 0820 2.5 31 -- 150 284 333

462009096371600 07/19/06 0840 2.6 26 219 -- 464 549

462009096371600 08/28/06 1350 3.2 32 245 -- 432 448
Water-Quality Data 17

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Silica,

unfiltered

(mg/L)

Water-treatment plant inflow

461921096363800 02/07/06 1305 <1 <1 13.4 0.47 -- 21.4

461921096363800 03/01/06 1105 <1 <1 11.2 .41 -- 28.6

461921096363800 05/23/06 1105 <1 <1 11.1 .46 -- 31.0

461921096363800 06/13/06 0855 <1 <1 11.1 .38 -- 30.5

461921096363800 07/19/06 0825 <1 <1 11.5 .42 34.0 --

461921096363800 08/28/06 1245 <1 <1 12.3 .43 19.4 --

Water-treatment plant outflow

461922096363900 02/07/06 1310 8 <1 16.2 1.31 -- 15.6

461922096363900 03/01/06 1055 21 <1 14.3 1.29 -- 20.1

461922096363900 05/23/06 1100 8 <1 14.8 1.43 -- 20.5

461922096363900 06/13/06 0805 17 <1 13.7 1.34 -- 25.3

461922096363900 07/19/06 0820 6 <1 16.8 1.30 19.4 --

461922096363900 08/28/06 1240 9 <1 17.1 1.21 20.0 --

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 <1 <1 127 1.05 -- 19.6

461749096363800 03/01/06 1210 <1 <1 124 1.20 -- 21.1

461749096363800 05/23/06 1130 <1 <1 107 .96 -- 27.1

461749096363800 06/13/06 0925 <1 <1 98.9 1.07 -- 27.3

461749096363800 07/19/06 0850 <1 <1 105 1.22 24.8 --

461749096363800 08/28/06 1400 <1 <1 121 .86 17.6 --

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 <1 <1 147 1.32 -- 25.2

462009096371600 03/01/06 1200 <1 <1 158 1.37 -- 29.6

462009096371600 05/23/06 1115 <1 <1 111 .96 -- 24.9

462009096371600 06/13/06 0820 7 <1 117 .86 -- 31.0

462009096371600 07/19/06 0840 8 <1 122 .93 34.2 --

462009096371600 08/28/06 1350 39 <1 122 .94 32.5 --
18 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sulfate,

filtered

(mg/L)

Dissolved 

solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia 

plus 

organic 

nitrogen,

filtered

(mg/L as N)

Ammonia 

plus 

organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Water-treatment plant inflow

461921096363800 02/07/06 1305 164 628 <5 1.3 1.3 1.24

461921096363800 03/01/06 1105 161 620 -- 1.4 1.3 1.31

461921096363800 05/23/06 1105 164 628 <5 1.4 1.4 1.26

461921096363800 06/13/06 0855 160 599 <5 1.6 1.5 1.23

461921096363800 07/19/06 0825 149 626 5 1.6 1.3 1.26

461921096363800 08/28/06 1245 96.7 578 12 1.4 1.3 1.24

Water-treatment plant outflow

461922096363900 02/07/06 1310 162 330 <5 1.0 1.0 1.07

461922096363900 03/01/06 1055 160 345 -- 1.2 1.1 1.07

461922096363900 05/23/06 1100 163 360 <5 1.1 .99 .989

461922096363900 06/13/06 0805 160 355 <5 1.1 1.0 1.01

461922096363900 07/19/06 0820 164 360 <5 1.1 1.0 1.04

461922096363900 08/28/06 1240 154 368 <5 1.1 1.1 1.05

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 735 1,450 74 23 31 17.1

461749096363800 03/01/06 1210 664 1,360 -- 24 34 19.2

461749096363800 05/23/06 1130 1,130 2,110 77 16 28 14.1

461749096363800 06/13/06 0925 792 1,670 81 19 -- 17.3

461749096363800 07/19/06 0850 670 1,260 84 18 31 14.1

461749096363800 08/28/06 1400 868 1,410 81 5.5 13 2.23

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 948 1,930 11 32 34 27.7

462009096371600 03/01/06 1200 954 1,950 -- 31 34 27.4

462009096371600 05/23/06 1115 707 1,410 64 12 17 8.65

462009096371600 06/13/06 0820 700 1,390 27 12 12 10.5

462009096371600 07/19/06 0840 1,200 1,820 16 7.7 7.6 4.76

462009096371600 08/28/06 1350 1,080 1,700 29 3.9 3.9 1.6
Water-Quality Data 19

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate,

unfiltered

(mg/L as N)

Total 

nitrogen,

filtered

(mg/L)

Total 

nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Water-treatment plant inflow

461921096363800 02/07/06 1305 1.16 <0.020 <0.020 1.36 1.33 0.031

461921096363800 03/01/06 1105 1.38 <.020 .02 1.45 1.33 .076

461921096363800 05/23/06 1105 1.26 <.020 <.020 1.44 1.38 .027

461921096363800 06/13/06 0855 1.17 .022 .05 1.59 1.54 <.004

461921096363800 07/19/06 0825 1.19 <.020 .02 1.65 1.30 <.004

461921096363800 08/28/06 1245 1.32 <.020 <.020 1.45 1.36 .009

Water-treatment plant outflow

461922096363900 02/07/06 1310 1.01 .105 .11 1.14 1.12 .342

461922096363900 03/01/06 1055 1.13 .100 .11 1.27 1.17 .293

461922096363900 05/23/06 1100 1.02 .120 .13 1.18 1.12 .149

461922096363900 06/13/06 0805 1.02 .138 .23 1.22 1.24 .180

461922096363900 07/19/06 0820 1.04 .134 .14 1.26 1.17 .242

461922096363900 08/28/06 1240 1.07 .080 .07 1.21 1.13 .130

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 18.5 .213 .02 22.9 31.0 2.51

461749096363800 03/01/06 1210 19.4 .318 .24 24.0 33.8 2.80

461749096363800 05/23/06 1130 14.5 .023 .04 16.5 28.4 2.22

461749096363800 06/13/06 0925 16.5 <.020 -- 19.2 -- .624

461749096363800 07/19/06 0850 13.7 <.020 .10 17.8 31.3 .113

461749096363800 08/28/06 1400 2.28 .029 .04 5.5 12.7 .140

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 27.8 .215 .02 32.5 34.2 3.79

462009096371600 03/01/06 1200 29.2 <.020 .03 31.2 33.9 4.42

462009096371600 05/23/06 1115 8.80 .128 .11 11.7 17.3 2.07

462009096371600 06/13/06 0820 10.5 .063 .06 11.9 12.1 1.96

462009096371600 07/19/06 0840 4.62 .740 .76 8.47 8.35 1.82

462009096371600 08/28/06 1350 1.59 1.65 1.69 5.51 5.62 2.07
20 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Phosphorus,

unfiltered

(mg/L)

Organic 

carbon,

filtered

(mg/L)

Organic 

carbon,

unfiltered

(mg/L)

BOD,

20-day

(mg/L)

BOD,

5-day

(mg/L)

Escherichia 

coli

(colonies per 

100 mL)

Water-treatment plant inflow

461921096363800 02/07/06 1305 0.083 -- -- -- <40.0 <10

461921096363800 03/01/06 1105 .093 -- -- -- -- --

461921096363800 05/23/06 1105 .093 -- -- -- -- --

461921096363800 06/13/06 0855 .062 -- -- -- -- --

461921096363800 07/19/06 0825 .080 -- -- -- -- --

461921096363800 08/28/06 1245 .117 -- -- -- -- --

Water-treatment plant outflow

461922096363900 02/07/06 1310 .341 -- -- -- <6.0 <10

461922096363900 03/01/06 1055 .282 -- -- -- -- --

461922096363900 05/23/06 1100 .154 -- -- -- -- --

461922096363900 06/13/06 0805 .178 -- -- -- -- --

461922096363900 07/19/06 0820 .236 -- -- -- -- --

461922096363900 08/28/06 1240 .137 -- -- -- -- --

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 4.36 -- -- -- 88 <10

461749096363800 03/01/06 1210 5.11 -- -- -- -- --

461749096363800 05/23/06 1130 4.64 -- -- -- -- --

461749096363800 06/13/06 0925 -- -- -- -- -- --

461749096363800 07/19/06 0850 4.79 -- -- -- -- --

461749096363800 08/28/06 1400 2.91 -- -- -- -- --

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 4.14 -- -- -- 22 <10

462009096371600 03/01/06 1200 4.92 -- -- -- -- --

462009096371600 05/23/06 1115 3.43 17.1 20.7 120 -- <10

462009096371600 06/13/06 0820 2.33 -- -- -- -- <10

462009096371600 07/19/06 0840 2.00 -- -- -- -- --

462009096371600 08/28/06 1350 2.60 -- -- -- -- --
Water-Quality Data 21

Table 3. Analytical results for water-quality samples collected from the Wahpeton, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Fecal 

coliform

(colonies per 

100 mL)

Iron,

filtered

(μg/L)

Iron,

unfiltered

recoverable

(μg/L)

Manganese,

filtered

(μg/L)

Manganese,

unfiltered

recoverable

(μg/L)

NBOD,

20-day

(mg/L)

Water-treatment plant inflow

461921096363800 02/07/06 1305 <10 -- 10 -- <10 --

461921096363800 03/01/06 1105 -- -- 1,130 -- 140 --

461921096363800 05/23/06 1105 -- -- 1,660 -- 130 --

461921096363800 06/13/06 0855 -- -- 1,860 -- 140 --

461921096363800 07/19/06 0825 -- 42 -- 140 -- --

461921096363800 08/28/06 1245 -- 1,090 -- 105 -- --

Water-treatment plant outflow

461922096363900 02/07/06 1310 <10 -- 1,610 -- 130 --

461922096363900 03/01/06 1055 -- -- 10 -- <10 --

461922096363900 05/23/06 1100 -- -- <10 -- <10 --

461922096363900 06/13/06 0805 -- -- 60 -- <10 --

461922096363900 07/19/06 0820 -- 22 -- <10 -- --

461922096363900 08/28/06 1240 -- <10 -- <10 -- --

Wastewater-treatment plant influent

461749096363800 02/07/06 1420 >1,600 -- 1,050 -- 260 --

461749096363800 03/01/06 1210 -- -- 410 -- 200 --

461749096363800 05/23/06 1130 -- -- 830 -- 210 --

461749096363800 06/13/06 0925 -- -- 1,290 -- 210 --

461749096363800 07/19/06 0850 -- 427 -- 163 -- --

461749096363800 08/28/06 1400 -- 23 -- 286 -- --

Wastewater-treatment plant effluent

462009096371600 02/07/06 1350 >1,600 -- 1,030 -- 670 --

462009096371600 03/01/06 1200 -- -- 180 -- 760 --

462009096371600 05/23/06 1115 <10 -- 1,410 -- 600 57.4

462009096371600 06/13/06 0820 <10 -- 860 -- 420 --

462009096371600 07/19/06 0840 -- 64 -- 381 -- --

462009096371600 08/28/06 1350 -- 37 -- 221 -- --
22 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants. 

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Turbidity

(NTRU)

pH, field

(standard 

unit)

Specific 

conductance, 

field

(μS/cm at 

25°C)

Water 

temperature 

(°C)

Hardness

(mg/L as 

CaCO3)

Noncarbonate 

hardness

(mg/L as 

CaCO3) 

Water-treatment plant inflow

465134096471100 01/25/06 1220 -- 8.1 1,130 5.7 430 95

465134096471100 02/28/06 1040 -- 7.6 828 6.0 370 120

465134096471100 05/09/06 1250 130 8.3 1,060 18.2 430 --

465134096471100 06/13/06 1155 89 8.3 994 21.7 400 --

465134096471100 07/18/06 1210 36 8.3 698 26.7 270 52

465134096471100 08/29/06 1020 40 8.4 860 21.6 370 110

Water-treatment plant outflow

465135096471200 01/25/06 1225 -- 8.9 896 4.1 130 10

465135096471200 02/28/06 1035 -- 8.6 630 3.9 120 11

465135096471200 05/09/06 1255 2.8 9.1 933 16.8 130 --

465135096471200 06/13/06 1200 <1.0 9.1 846 20.9 130 --

465135096471200 07/18/06 1215 1.1 9.0 463 27.1 96 0

465135096471200 08/29/06 1015 1.4 9.0 794 22.5 190 32

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 -- 7.6 1,970 14.8 390 89

465520096471500 02/28/06 1200 -- 7.2 1,720 6.1 330 50

465520096471500 05/09/06 1320 130 7.4 2,080 13.6 660 --

465520096471500 06/13/06 1230 170 7.5 1,870 11.7 430 --

465520096471500 07/18/06 1235 150 7.3 1,380 9.9 310 42

465520096471500 08/29/06 1040 210 7.7 1,600 7.1 310 22

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 -- 7.9 1,680 13.9 360 220

465529096471400 02/28/06 1155 -- 7.1 1,600 5.4 340 220

465529096471400 05/09/06 1310 19 7.7 1,970 13.6 550 --

465529096471400 06/13/06 1235 14 7.7 1,780 8.8 420 --

465529096471400 07/18/06 1240 7.6 7.4 1,260 9.2 300 190

465529096471400 08/29/06 1035 9.9 7.7 1,430 6.1 300 200
Water-Quality Data 23

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Calcium,

filtered

(mg/L)

Calcium,

unfiltered

recoverable

(mg/L)

Magnesium,

filtered

(mg/L)

Magnesium,

unfiltered

recoverable

(mg/L)

Potassium,

filtered

(mg/L)

Potassium,

unfiltered

recoverable

(mg/L)

Water-treatment plant inflow

465134096471100 01/25/06 1220 -- 86.4 -- 51.7 -- 9.2

465134096471100 02/28/06 1040 -- 69.8 -- 48.3 -- 6.0

465134096471100 05/09/06 1250 -- 90.8 -- 49.4 -- 9.9

465134096471100 06/13/06 1155 -- 86.4 -- 43.7 -- 10.0

465134096471100 07/18/06 1210 50.2 -- 34.7 -- 12.9 --

465134096471100 08/29/06 1020 83.0 -- 40.2 -- 10.9 --

Water-treatment plant outflow

465135096471200 01/25/06 1225 -- 33.4 -- 10.9 -- 9.2

465135096471200 02/28/06 1035 -- 25.1 -- 13.0 -- 6.1

465135096471200 05/09/06 1255 -- 37.0 -- 9.7 -- 9.2

465135096471200 06/13/06 1200 -- 36.3 -- 8.7 -- 9.3

465135096471200 07/18/06 1215 22.8 -- 9.4 -- 11.5 --

465135096471200 08/29/06 1015 67.0 -- 5.9 -- 10.7 --

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 -- 73.6 -- 50.7 -- 21.9

465520096471500 02/28/06 1200 -- 64.0 -- 42.2 -- 17.9

465520096471500 05/09/06 1320 -- 112 -- 92.2 -- 20.8

465520096471500 06/13/06 1230 -- 86.5 -- 51.4 -- 19.9

465520096471500 07/18/06 1235 65.8 -- 35.2 -- 16.7 --

465520096471500 08/29/06 1040 61.2 -- 38.6 -- 19.4 --

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 -- 64.9 -- 47.6 -- 21.1

465529096471400 02/28/06 1155 -- 67.9 -- 41.9 -- 17.3

465529096471400 05/09/06 1310 -- 89.5 -- 78.4 -- 15.4

465529096471400 06/13/06 1235 -- 79.2 -- 54.0 -- 18.8

465529096471400 07/18/06 1240 58.8 -- 37.5 -- 15.8 --

465529096471400 08/29/06 1035 63.5 -- 34.6 -- 18.8 --
24 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Sodium 

adsorption 

ratio

(number)

Sodium 

fraction of 

cations (percent in equivalents of major 

cations)

Sodium,

filtered

(mg/L)

Sodium,

unfiltered

recoverable

(mg/L)

ANC,

unfiltered

(mg/L as 

CaCO3)

Bicarbonate,

unfiltered

(mg/L)

Water-treatment plant inflow

465134096471100 01/25/06 1220 2.0 32 -- 97.5 332 406

465134096471100 02/28/06 1040 .8 18 -- 37.3 254 310

465134096471100 05/09/06 1250 1.4 25 -- 67.2 270 329

465134096471100 06/13/06 1155 1.1 21 -- 51.3 266 325

465134096471100 07/18/06 1210 .8 20 31.9 -- 217 255

465134096471100 08/29/06 1020 1.1 23 50.5 -- 268 316

Water-treatment plant outflow

465135096471200 01/25/06 1225 5.3 68 -- 139 119 133

465135096471200 02/28/06 1035 3.3 59 -- 82.3 107 125

465135096471200 05/09/06 1255 5.0 66 -- 131 111 108

465135096471200 06/13/06 1200 4.1 62 -- 105 111 104

465135096471200 07/18/06 1215 2.1 51 46.5 -- 98 89

465135096471200 08/29/06 1015 2.5 48 80.5 -- 160 146

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 5.2 55 -- 235 304 370

465520096471500 02/28/06 1200 4.6 54 -- 194 283 345

465520096471500 05/09/06 1320 3.6 40 -- 210 342 417

465520096471500 06/13/06 1230 4.0 48 -- 191 328 400

465520096471500 07/18/06 1235 3.4 49 136 -- 266 325

465520096471500 08/29/06 1040 3.9 53 160 -- 288 352

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 5.3 56 -- 229 142 174

465529096471400 02/28/06 1155 4.6 54 -- 194 124 151

465529096471400 05/09/06 1310 3.5 42 -- 187 201 245

465529096471400 06/13/06 1235 3.8 47 -- 180 166 202

465529096471400 07/18/06 1240 3.2 48 129 -- 113 138

465529096471400 08/29/06 1035 3.6 51 145 -- 98 120
Water-Quality Data 25

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Silica,

unfiltered

(mg/L)

Water-treatment plant inflow

465134096471100 01/25/06 1220 <1 <1 23.2 0.29 -- 24.4

465134096471100 02/28/06 1040 <1 <1 29.6 .16 -- 18.9

465134096471100 05/09/06 1250 <1 <1 23.4 .20 -- 39.0

465134096471100 06/13/06 1155 <1 <1 23.4 .21 -- 35.3

465134096471100 07/18/06 1210 5 <1 32.5 .27 17.6 --

465134096471100 08/29/06 1020 5 <1 32.1 .24 18.2 --

Water-treatment plant outflow

465135096471200 01/25/06 1225 6 <1 27.5 1.24 -- 9.35

465135096471200 02/28/06 1035 2 <1 32.1 1.36 -- 7.81

465135096471200 05/09/06 1255 14 <1 27.0 1.40 -- 9.63

465135096471200 06/13/06 1200 16 <1 29.5 1.38 -- 7.79

465135096471200 07/18/06 1215 15 <1 31.4 1.28 6.50 --

465135096471200 08/29/06 1015 24 <1 35.5 1.22 6.60 --

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 <1 <1 141 1.34 -- 16.2

465520096471500 02/28/06 1200 <1 <1 142 1.45 -- 12.6

465520096471500 05/09/06 1320 <1 <1 120 1.27 -- 21.8

465520096471500 06/13/06 1230 <1 <1 123 1.61 -- 18.7

465520096471500 07/18/06 1235 <1 <1 118 1.64 11.9 --

465520096471500 08/29/06 1040 <1 <1 134 1.65 13.9 --

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 <1 <1 116 1.51 -- 15.1

465529096471400 02/28/06 1155 <1 <1 135 1.44 -- 13.1

465529096471400 05/09/06 1310 <1 <1 113 1.32 -- 18.2

465529096471400 06/13/06 1235 <1 <1 122 1.34 -- 15.7

465529096471400 07/18/06 1240 <1 <1 115 1.60 13.2 --

465529096471400 08/29/06 1035 <1 <1 125 1.50 13.4 --
26 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Sulfate,

filtered

(mg/L)

Dissolved 

solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia 

plus 

organic 

nitrogen,

filtered

(mg/L as N)

Ammonia 

plus 

organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Water-treatment plant inflow

465134096471100 01/25/06 1220 260 733 15 1.0 0.92 0.083

465134096471100 02/28/06 1040 139 486 -- .47 .53 .053

465134096471100 05/09/06 1250 283 691 161 .81 .69 .039

465134096471100 06/13/06 1155 242 621 73 .66 .55 <.010

465134096471100 07/18/06 1210 96.2 427 46 .85 .69 <.010

465134096471100 08/29/06 1020 205 588 48 .56 .56 <.010

Water-treatment plant outflow

465135096471200 01/25/06 1225 266 562 <5 1.4 1.1 .695

465135096471200 02/28/06 1035 145 370 -- .84 .75 .505

465135096471200 05/09/06 1255 284 571 <5 .99 .93 .626

465135096471200 06/13/06 1200 246 505 <5 .95 .80 .647

465135096471200 07/18/06 1215 74.7 285 <5 1.1 1.0 .587

465135096471200 08/29/06 1015 182 487 <5 .92 .88 .620

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 459 1,170 238 37 43 29.9

465520096471500 02/28/06 1200 358 990 -- 30 46 25.7

465520096471500 05/09/06 1320 607 1,370 244 22 29 20.6

465520096471500 06/13/06 1230 464 1,130 235 26 25 23.3

465520096471500 07/18/06 1235 256 856 290 26 27 22.1

465520096471500 08/29/06 1040 299 992 532 28 28 24.0

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 445 1,100 10 1.1 1.6 <.010

465529096471400 02/28/06 1155 389 1,020 -- <.08 .20 .092

465529096471400 05/09/06 1310 582 1,280 14 .70 .90 .501

465529096471400 06/13/06 1235 483 1,150 15 <.08 <.08 .028

465529096471400 07/18/06 1240 256 787 7 .60 1.3 .029

465529096471400 08/29/06 1035 307 880 7 .30 .60 .034
Water-Quality Data 27

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate,

unfiltered

(mg/L as N)

Total 

nitrogen,

filtered

(mg/L)

Total 

nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Water-treatment plant inflow

465134096471100 01/25/06 1220 0.08 0.551 0.59 1.57 1.51 0.250

465134096471100 02/28/06 1040 .06 .577 .37 1.05 .90 .192

465134096471100 05/09/06 1250 .02 .860 .81 1.67 1.50 .167

465134096471100 06/13/06 1155 <.01 .413 .40 1.07 .95 .126

465134096471100 07/18/06 1210 <.01 .242 .24 1.09 .93 .121

465134096471100 08/29/06 1020 <.01 .090 .08 .65 .64 .066

Water-treatment plant outflow

465135096471200 01/25/06 1225 .60 .619 .70 2.03 1.79 .304

465135096471200 02/28/06 1035 .53 .436 .44 1.28 1.19 .449

465135096471200 05/09/06 1255 .63 1.04 1.04 2.03 1.97 .338

465135096471200 06/13/06 1200 .64 .531 .51 1.48 1.31 .360

465135096471200 07/18/06 1215 .61 .387 .40 1.54 1.40 .258

465135096471200 08/29/06 1015 .62 .238 .24 1.16 1.12 .270

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 29.9 .209 .18 37.4 43.2 4.09

465520096471500 02/28/06 1200 27.8 .118 .04 29.9 45.8 3.16

465520096471500 05/09/06 1320 18.8 <.020 .03 21.8 28.6 2.17

465520096471500 06/13/06 1230 23.8 .043 .03 26.0 24.9 2.64

465520096471500 07/18/06 1235 22.6 <.020 .10 26.0 27.2 2.85

465520096471500 08/29/06 1040 24.2 .105 .09 27.6 27.6 3.26

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 .02 20.3 20.3 21.4 21.9 3.81

465529096471400 02/28/06 1155 .11 22.8 22.8 22.4 23.0 3.48

465529096471400 05/09/06 1310 .50 21.6 21.8 22.3 22.7 3.08

465529096471400 06/13/06 1235 .03 25.3 24.8 23.5 23.5 3.10

465529096471400 07/18/06 1240 .02 23.5 23.6 24.1 24.9 4.19

465529096471400 08/29/06 1035 .03 25.7 25.7 26.0 26.3 4.36
28 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Phosphorus,

unfiltered

(mg/L)

Organic 

carbon,

filtered

(mg/L)

Organic 

carbon,

unfiltered

(mg/L)

BOD,

20-day

(mg/L)

BOD,

5-day

(mg/L)

Escherichia 

coli

(colonies per 

100 mL)

Water-treatment plant inflow

465134096471100 01/25/06 1220 0.275 -- -- -- <30 10

465134096471100 02/28/06 1040 .210 -- -- -- -- --

465134096471100 05/09/06 1250 .311 -- -- -- -- --

465134096471100 06/13/06 1155 .213 -- -- -- -- --

465134096471100 07/18/06 1210 .159 -- -- -- -- --

465134096471100 08/29/06 1020 .119 -- -- -- -- --

Water-treatment plant outflow

465135096471200 01/25/06 1225 .288 -- -- -- <6 <10

465135096471200 02/28/06 1035 .457 -- -- -- -- --

465135096471200 05/09/06 1255 .346 -- -- -- -- --

465135096471200 06/13/06 1200 .359 -- -- -- -- --

465135096471200 07/18/06 1215 .258 -- -- -- -- --

465135096471200 08/29/06 1015 .281 -- -- -- -- --

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 8.83 -- -- -- 228 >1,600

465520096471500 02/28/06 1200 10.6 -- -- -- -- --

465520096471500 05/09/06 1320 6.06 -- -- -- -- --

465520096471500 06/13/06 1230 6.37 -- -- -- -- --

465520096471500 07/18/06 1235 6.59 -- -- -- -- --

465520096471500 08/29/06 1040 6.10 -- -- -- -- --

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 4.41 -- -- -- <6 >1,600

465529096471400 02/28/06 1155 4.78 -- -- -- -- --

465529096471400 05/09/06 1310 3.68 9.8 10.2 20 -- >1,600

465529096471400 06/13/06 1235 3.52 -- -- -- -- 40

465529096471400 07/18/06 1240 4.58 -- -- -- -- --

465529096471400 08/29/06 1035 4.68 -- -- -- -- --
Water-Quality Data 29

Table 4. Analytical results for water-quality samples collected from the Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and 

USGS station 

number

Sample 

date

Sample 

time

Fecal 

coliform

(colonies per 

100 mL)

Iron,

filtered

(μg/L)

Iron,

unfiltered

recoverable

(μg/L)

Manganese,

filtered

(μg/L)

Manganese,

unfiltered

recoverable

(μg/L)

NBOD,

20-day

(mg/L)

Water-treatment plant inflow

465134096471100 01/25/06 1220 10 -- 650 -- 140 --

465134096471100 02/28/06 1040 -- -- 110 -- 30 --

465134096471100 05/09/06 1250 -- -- 4,370 -- 780 --

465134096471100 06/13/06 1155 -- -- 2,960 -- 400 --

465134096471100 07/18/06 1210 -- 24 -- <10 -- --

465134096471100 08/29/06 1020 -- 28 -- <10 -- --

Water-treatment plant outflow

465135096471200 01/25/06 1225 <10 -- <10 -- <10 --

465135096471200 02/28/06 1035 -- -- 20 -- <10 --

465135096471200 05/09/06 1255 -- -- 130 -- <10 --

465135096471200 06/13/06 1200 -- -- 130 -- <10 --

465135096471200 07/18/06 1215 -- 30 -- <10 -- --

465135096471200 08/29/06 1015 -- 24 -- <10 -- --

Wastewater-treatment plant influent

465520096471500 01/25/06 1340 >1,600 -- 9,540 -- 290 --

465520096471500 02/28/06 1200 -- -- 830 -- 250 --

465520096471500 05/09/06 1320 -- -- 630 -- 330 --

465520096471500 06/13/06 1230 -- -- 10 -- 450 --

465520096471500 07/18/06 1235 -- 760 -- 228 -- --

465520096471500 08/29/06 1040 -- 407 -- 220 -- --

Wastewater-treatment plant effluent

465529096471400 01/25/06 1335 >1,600 -- 1,130 -- 50 --

465529096471400 02/28/06 1155 -- -- 210 -- 10 --

465529096471400 05/09/06 1310 >1,600 -- 130 -- 60 0

465529096471400 06/13/06 1235 40 -- 130 -- 60 --

465529096471400 07/18/06 1240 -- 156 -- <10 -- --

465529096471400 08/29/06 1035 -- 126 -- <10 -- --
30 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Turbidity

(NTRU)

pH, field

(standard unit)

Specific 

conductance, 

field

(μS/cm at 

25°C)

Water 

temperature 

(°C)

Hardness

(mg/L as 

CaCO3)

Noncarbonate 

hardness

(mg/L as 

CaCO3) 

Water-treatment plant inflow

465308096545800 01/25/06 1020 -- 7.8 1,880 8.2 200 0

465308096545800 02/28/06 0800 -- 7.5 1,900 7.6 200 0

465308096545800 07/18/06 0955 2.8 7.7 1,880 10.0 200 0

465308096545800 08/02/06 1150 1.8 7.8 1,860 11.7 200 0

465308096545800 08/07/06 1305 2.4 7.9 1,880 12.5 180 0

465308096545800 08/29/06 0825 2.3 7.8 1,880 8.9 190 0

Water-treatment plant outflow

465309096545700 01/25/06 1025 -- 7.6 1,890 8.1 210 0

465309096545700 02/28/06 0755 -- 7.2 1,900 7.6 200 0

465309096545700 07/18/06 1000 1.6 7.3 1,890 10 200 0

465309096545700 08/02/06 1155 2.0 7.4 1,870 11.4 200 0

465309096545700 08/07/06 1315 3.9 7.0 1,920 12.6 190 0

465309096545700 08/29/06 0820 1.1 7.4 1,860 8.7 200 0

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 -- 7.8 3,230 11.7 530 0

465337096553300 02/28/06 0910 -- 7.4 3,090 9.8 450 0

465337096553300 07/18/06 0935 73 7.3 3,120 17 530 0

465337096553300 08/02/06 1225 170 7.6 4,220 18.9 590 28

465337096553300 08/07/06 1335 150 7.8 3,810 18.5 480 0

465337096553300 08/29/06 0800 280 7.4 2,750 16.6 390 0

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 -- 8.7 3,380 .4 530 130

465355096553600 02/28/06 0915 -- 8.2 3,850 1.0 660 120

465355096553600 07/18/06 0925 9.5 9.2 3,290 23.8 550 76

465355096553600 08/02/06 1220 12 8.4 3,020 24.3 520 0

465355096553600 08/07/06 1340 17 8.6 3,080 24.4 510 0

465355096553600 08/29/06 0755 23 9.2 1,820 18.6 590 75
Water-Quality Data 31

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Calcium,

filtered

(mg/L)

Calcium,

unfiltered

recoverable

(mg/L)

Magnesium,

filtered

(mg/L)

Magnesium,

unfiltered

recoverable

(mg/L)

Potassium,

filtered

(mg/L)

Potassium,

unfiltered

recoverable

(mg/L)

Water-treatment plant inflow

465308096545800 01/25/06 1020 -- 51.2 -- 17.6 -- 7.2

465308096545800 02/28/06 0800 -- 52.2 -- 17.7 -- 7.4

465308096545800 07/18/06 0955 50.6 -- 17.7 -- 6.64 --

465308096545800 08/02/06 1150 50.0 -- 17.8 -- 6.96 --

465308096545800 08/07/06 1305 45.7 -- 17.0 -- 7.36 --

465308096545800 08/29/06 0825 45.6 -- 17.5 -- 7.35 --

Water-treatment plant outflow

465309096545700 01/25/06 1025 -- 53.3 -- 17.9 -- 7.2

465309096545700 02/28/06 0755 -- 50.8 -- 17.1 -- 7.1

465309096545700 07/18/06 1000 50.2 -- 17.6 -- 7.34 --

465309096545700 08/02/06 1155 49.7 -- 17.6 -- 7.27 --

465309096545700 08/07/06 1315 47.7 -- 17.5 -- 7.58 --

465309096545700 08/29/06 0820 53.8 -- 17.2 -- 6.73 --

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 -- 102 -- 66.3 -- 19.2

465337096553300 02/28/06 0910 -- 86.9 -- 57.2 -- 17.7

465337096553300 07/18/06 0935 98.5 -- 68.4 -- 16.4 --

465337096553300 08/02/06 1225 120 -- 69.7 -- 19.5 --

465337096553300 08/07/06 1335 94.1 -- 58.2 -- 23.4 --

465337096553300 08/29/06 0800 79.7 -- 47.1 -- 16.3 --

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 -- 78.1 -- 82.0 -- 18.3

465355096553600 02/28/06 0915 -- 101 -- 98.6 -- 20.8

465355096553600 07/18/06 0925 85.4 -- 82.6 -- 20.6 --

465355096553600 08/02/06 1220 87.7 -- 72.0 -- 19.5 --

465355096553600 08/07/06 1340 86.5 -- 72.2 -- 21.6 --

465355096553600 08/29/06 0755 96.4 -- 85.8 -- 20.2 --
32 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sodium 

adsorption 

ratio

(number)

Sodium 

fraction of 

cations 

(percent in 

equivalents of 

major cations)

Sodium,

filtered

(mg/L)

Sodium,

unfiltered

recoverable

(mg/L)

ANC,

unfiltered

(mg/L as 

CaCO3)

Bicarbonate,

unfiltered

(mg/L)

Water-treatment plant inflow

465308096545800 01/25/06 1020 10 78 -- 333 405 494

465308096545800 02/28/06 0800 9.7 76 -- 318 400 488

465308096545800 07/18/06 0955 9.7 77 314 -- 397 485

465308096545800 08/02/06 1150 9.7 77 314 -- 398 485

465308096545800 08/07/06 1305 12 81 364 -- 397 485

465308096545800 08/29/06 0825 12 81 362 -- 401 489

Water-treatment plant outflow

465309096545700 01/25/06 1025 10 77 -- 335 384 469

465309096545700 02/28/06 0755 9.6 76 -- 311 388 473

465309096545700 07/18/06 1000 9.8 78 316 -- 374 456

465309096545700 08/02/06 1155 9.7 78 313 -- 372 453

465309096545700 08/07/06 1315 12 81 369 -- 334 408

465309096545700 08/29/06 0820 9.1 76 300 -- 386 471

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 9.1 65 -- 482 560 684

465337096553300 02/28/06 0910 9.0 67 -- 439 566 691

465337096553300 07/18/06 0935 8.0 64 425 -- 565 690

465337096553300 08/02/06 1225 11 70 627 -- 559 681

465337096553300 08/07/06 1335 12 73 592 -- 580 708

465337096553300 08/29/06 0800 7.8 66 354 -- 613 747

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 10 68 -- 554 407 452

465355096553600 02/28/06 0915 10 66 -- 613 542 620

465355096553600 07/18/06 0925 9.7 67 525 -- 479 356

465355096553600 08/02/06 1220 8.8 66 461 -- 544 618

465355096553600 08/07/06 1340 9.7 68 505 -- 590 669

465355096553600 08/29/06 0755 9.1 65 510 -- 520 405
Water-Quality Data 33

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Silica,

unfiltered

(mg/L)

Water-treatment plant inflow

465308096545800 01/25/06 1020 <1 <1 335 0.63 -- 27.9

465308096545800 02/28/06 0800 <1 <1 341 .64 -- 27.9

465308096545800 07/18/06 0955 <1 <1 331 .62 29.4 --

465308096545800 08/02/06 1150 <1 <1 328 .60 29.6 --

465308096545800 08/07/06 1305 <1 <1 343 .67 27.4 --

465308096545800 08/29/06 0825 <1 <1 329 .62 27.7 --

Water-treatment plant outflow

465309096545700 01/25/06 1025 <1 <1 338 1.17 -- 30.4

465309096545700 02/28/06 0755 <1 <1 344 1.24 -- 27.4

465309096545700 07/18/06 1000 <1 <1 343 1.44 30.0 --

465309096545700 08/02/06 1155 <1 <1 343 1.39 29.8 --

465309096545700 08/07/06 1315 <1 <1 345 -- 38.0 --

465309096545700 08/29/06 0820 <1 <1 340 1.43 28.0 --

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 <1 <1 478 1.09 -- 28.2

465337096553300 02/28/06 0910 <1 <1 448 1.01 -- 29.3

465337096553300 07/18/06 0935 <1 <1 452 1.08 32.6 --

465337096553300 08/02/06 1225 <1 <1 684 -- 32.4 --

465337096553300 08/07/06 1335 <1 <1 702 -- 28.4 --

465337096553300 08/29/06 0800 <1 <1 351 1.08 30.7 --

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 22 <1 523 .95 -- 21.5

465355096553600 02/28/06 0915 21 <1 610 1.02 -- 28.7

465355096553600 07/18/06 0925 112 <1 491 .68 40.4 --

465355096553600 08/02/06 1220 22 <1 363 .60 39.5 --

465355096553600 08/07/06 1340 25 <1 462 -- 37.5 --

465355096553600 08/29/06 0755 113 <1 531 .63 40.5 --
34 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sulfate,

filtered

(mg/L)

Dissolved 

solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia 

plus 

organic 

nitrogen,

filtered

(mg/L as N)

Ammonia 

plus 

organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Water-treatment plant inflow

465308096545800 01/25/06 1020 49.1 1,040 <5 1.6 1.5 1.50

465308096545800 02/28/06 0800 51.0 1,030 -- 1.5 1.2 1.32

465308096545800 07/18/06 0955 55.0 1,170 <5 1.6 1.5 1.23

465308096545800 08/02/06 1150 54.7 1,170 <5 1.7 1.6 1.43

465308096545800 08/07/06 1305 57.3 1,180 <5 1.8 1.6 1.27

465308096545800 08/29/06 0825 56.2 1,170 <5 1.6 1.5 1.31

Water-treatment plant outflow

465309096545700 01/25/06 1025 49.1 1,030 <5 1.4 1.4 1.33

465309096545700 02/28/06 0755 51.0 1,020 -- 1.4 1.2 1.21

465309096545700 07/18/06 1000 55.2 1,180 <5 .80 .76 .644

465309096545700 08/02/06 1155 54.8 1,170 <5 .78 .69 .703

465309096545700 08/07/06 1315 56.0 1,190 <5 .66 .58 .454

465309096545700 08/29/06 0820 56.1 1,170 <5 .74 .68 .611

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 406 1,890 81 36 41 37.4

465337096553300 02/28/06 0910 338 1,730 -- 36 40 35.6

465337096553300 07/18/06 0935 364 1,940 109 32 33 28.3

465337096553300 08/02/06 1225 377 2,600 151 36 38 33.7

465337096553300 08/07/06 1335 338 2,320 182 42 44 39.1

465337096553300 08/29/06 0800 266 1,700 287 36 39 3.27

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 618 2,120 <5 4.0 4.6 2.12

465355096553600 02/28/06 0915 667 2,440 -- 6.2 6.4 3.57

465355096553600 07/18/06 0925 549 2,030 13 2.2 2.2 <.010

465355096553600 08/02/06 1220 298 1,870 11 3.9 6.1 3.41

465355096553600 08/07/06 1340 375 1,880 13 5.8 6.3 2.88

465355096553600 08/29/06 0755 581 2,460 25 1.9 2.4 <.010
Water-Quality Data 35

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate,

unfiltered

(mg/L as N)

Total 

nitrogen,

filtered

(mg/L)

Total 

nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Water-treatment plant inflow

465308096545800 01/25/06 1020 1.52 <0.020 0.02 1.63 1.48 0.070

465308096545800 02/28/06 0800 1.29 .023 .02 1.55 1.27 .060

465308096545800 07/18/06 0955 1.11 .080 .13 1.73 1.61 .034

465308096545800 08/02/06 1150 1.19 <.020 <.02 1.68 1.58 .038

465308096545800 08/07/06 1305 1.21 .021 .02 1.77 1.57 .040

465308096545800 08/29/06 0825 1.32 .022 .02 1.67 1.56 .036

Water-treatment plant outflow

465309096545700 01/25/06 1025 1.33 .050 .050 1.49 1.44 .819

465309096545700 02/28/06 0755 1.18 .062 .08 1.46 1.29 .120

465309096545700 07/18/06 1000 .57 .114 .12 .92 .88 1.24

465309096545700 08/02/06 1155 .46 .026 .09 .80 .78 .032

465309096545700 08/07/06 1315 .47 .062 .10 .72 .68 20.2

465309096545700 08/29/06 0820 .60 .105 .10 .84 .78 1.29

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 38.4 .022 .03 36.4 40.6 5.98

465337096553300 02/28/06 0910 34.9 .035 .04 36.1 40.5 7.07

465337096553300 07/18/06 0935 27.3 <.020 .04 32.2 33.1 5.34

465337096553300 08/02/06 1225 21.8 <.020 .03 35.8 38.3 6.26

465337096553300 08/07/06 1335 39.5 .021 .03 41.7 44.5 5.76

465337096553300 08/29/06 0800 3.32 .020 .02 36.2 38.8 6.34

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 2.14 <.020 .02 4.06 4.61 3.67

465355096553600 02/28/06 0915 3.49 .021 .03 6.26 6.40 5.32

465355096553600 07/18/06 0925 <.01 <.020 .02 2.18 2.18 .989

465355096553600 08/02/06 1220 2.99 .080 .10 4.02 6.16 2.45

465355096553600 08/07/06 1340 2.83 .097 .08 5.95 6.40 2.00

465355096553600 08/29/06 0755 <.01 <.020 <.02 1.96 2.40 1.43
36 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Phosphorus,

unfiltered

(mg/L)

Organic 

carbon,

filtered

(mg/L)

Organic 

carbon,

unfiltered

(mg/L)

BOD,

20-day

(mg/L)

BOD,

5-day

(mg/L)

Escherichia 

coli

(colonies per 

100 mL)

Water-treatment plant inflow

465308096545800 01/25/06 1020 0.112 -- -- -- <30 <10

465308096545800 02/28/06 0800 .106 -- -- -- -- --

465308096545800 07/18/06 0955 .074 -- -- -- -- --

465308096545800 08/02/06 1150 .076 -- -- -- -- --

465308096545800 08/07/06 1305 .084 -- -- -- -- --

465308096545800 08/29/06 0825 .076 -- -- -- -- --

Water-treatment plant outflow

465309096545700 01/25/06 1025 .977 -- -- -- <6 10

465309096545700 02/28/06 0755 .251 -- -- -- -- --

465309096545700 07/18/06 1000 1.28 -- -- -- -- --

465309096545700 08/02/06 1155 .108 -- -- -- -- --

465309096545700 08/07/06 1315 20.2 -- -- -- -- --

465309096545700 08/29/06 0820 1.31 -- -- -- -- --

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 7.41 -- -- -- <100 >1,600

465337096553300 02/28/06 0910 8.81 -- -- -- -- --

465337096553300 07/18/06 0935 6.20 -- -- -- -- --

465337096553300 08/02/06 1225 7.90 -- -- -- -- --

465337096553300 08/07/06 1335 7.65 -- -- -- -- --

465337096553300 08/29/06 0800 8.28 -- -- -- -- --

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 3.87 -- -- -- <6 <10

465355096553600 02/28/06 0915 5.37 -- -- -- -- --

465355096553600 07/18/06 0925 1.15 -- -- -- -- --

465355096553600 08/02/06 1220 2.91 15.9 21 50 -- 40

465355096553600 08/07/06 1340 2.44 -- -- -- -- <10

465355096553600 08/29/06 0755 1.84 -- -- -- -- --
Water-Quality Data 37

Table 5. Analytical results for water-quality samples collected from the West Fargo, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Fecal 

coliform

(colonies per 

100 mL)

Iron,

filtered

(μg/L)

Iron,

unfiltered

recoverable

(μg/L)

Manganese,

filtered

(μg/L)

Manganese,

unfiltered

recoverable

(μg/L)

NBOD,

20-day

(mg/L)

Water-treatment plant inflow

465308096545800 01/25/06 1020 <10 -- 580 -- 40 --

465308096545800 02/28/06 0800 -- -- 60 -- 40 --

465308096545800 07/18/06 0955 -- 130 -- 35 -- --

465308096545800 08/02/06 1150 -- 46 -- 33 -- --

465308096545800 08/07/06 1305 -- <10 -- 33 -- --

465308096545800 08/29/06 0825 -- 73 -- 33 -- --

Water-treatment plant outflow

465309096545700 01/25/06 1025 10 -- 540 -- 50 --

465309096545700 02/28/06 0755 -- -- 50 -- 20 --

465309096545700 07/18/06 1000 -- 620 -- 34 -- --

465309096545700 08/02/06 1155 -- 48 -- 24 -- --

465309096545700 08/07/06 1315 -- 543 -- 34 -- --

465309096545700 08/29/06 0820 -- 565 -- 33 -- --

Wastewater-treatment plant influent

465337096553300 01/25/06 0930 >1,600 -- 650 -- 190 --

465337096553300 02/28/06 0910 -- -- 190 -- 150 --

465337096553300 07/18/06 0935 -- 150 -- 156 -- --

465337096553300 08/02/06 1225 -- 144 -- 193 -- --

465337096553300 08/07/06 1335 -- 48 -- 157 -- --

465337096553300 08/29/06 0800 -- 119 -- 143 -- --

Wastewater-treatment plant effluent

465355096553600 01/25/06 0950 <10 -- 120 -- 650 --

465355096553600 02/28/06 0915 -- -- 120 -- 850 --

465355096553600 07/18/06 0925 -- 46 -- 18 -- --

465355096553600 08/02/06 1220 40 62 -- 162 -- 25.8

465355096553600 08/07/06 1340 20 <10 -- 141 -- --

465355096553600 08/29/06 0755 -- 59 -- <10 -- --
38 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Turbidity

(NTRU)

pH, field

(standard 

unit)

Specific 

conductance, 

field

(μS/cm at 

25°C)

Water 

temperature 

(°C)

Hardness

(mg/L as 

CaCO3)

Noncarbonate 

hardness

(mg/L as 

CaCO3) 

Water-treatment plant inflow

465242096443800 01/25/06 1515 -- 7.9 921 11.0 440 180

465242096443800 02/28/06 1305 -- 7.7 833 10.9 370 110

465242096443800 05/09/06 1540 25 7.9 1,050 13.8 280 --

465242096443800 06/13/06 1455 32 7.6 903 16.9 420 --

465242096443800 07/18/06 1410 11 7.3 966 15.9 460 140

465242096443800 08/29/06 1320 16 8.0 901 19.8 400 130

Water-treatment plant outflow

465241096443700 01/25/06 1505 -- 9.4 690 4.5 160 82

465241096443700 02/28/06 1300 -- 8.8 556 4.2 100 52

465241096443700 05/09/06 1545 1.6 9.2 838 14.1 85 --

465241096443700 06/13/06 1500 <1.0 9.4 717 19.2 97 --

465241096443700 07/18/06 1415 <1.0 9.1 561 21.8 100 45

465241096443700 08/29/06 1315 <1.0 9.4 598 21.5 100 22

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 -- 7.6 1,520 5.7 330 57

465340096441500 02/28/06 1335 -- 7.1 1,500 6.7 310 55

465340096441500 05/09/06 1600 98 7.5 1,870 9.9 560 --

465340096441500 06/13/06 1520 120 7.4 1,690 11.1 440 --

465340096441500 07/18/06 1430 150 7.3 1,270 11.7 280 21

465340096441500 08/29/06 1335 220 7.5 1,320 10.3 240 0

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 -- 7.9 1,390 5.3 310 140

465339096441600 02/28/06 1330 -- 7.4 1,480 6.7 330 160

465339096441600 05/09/06 1605 2.9 7.7 1,880 9.7 610 --

465339096441600 06/13/06 1515 2.0 7.7 1,680 12.3 440 --

465339096441600 07/18/06 1425 5.9 7.4 1,300 11.8 290 130

465339096441600 08/29/06 1330 4.5 7.6 1,190 10.3 250 120
Water-Quality Data 39

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Calcium,

filtered

(mg/L)

Calcium,

unfiltered

recoverable

(mg/L)

Magnesium,

filtered

(mg/L)

Magnesium,

unfiltered

recoverable

(mg/L)

Potassium,

filtered

(mg/L)

Potassium,

unfiltered

recoverable

(mg/L)

Water-treatment plant inflow

465242096443800 01/25/06 1515 -- 80.0 -- 57.4 -- 6.9

465242096443800 02/28/06 1305 -- 69.7 -- 48.3 -- 5.9

465242096443800 05/09/06 1540 -- 58.4 -- 32.4 -- 5.6

465242096443800 06/13/06 1455 -- 89.1 -- 47.1 -- 6.9

465242096443800 07/18/06 1410 105 -- 46.7 -- 6.76 --

465242096443800 08/29/06 1320 84.3 -- 46.8 -- 13.0 --

Water-treatment plant outflow

465241096443700 01/25/06 1505 -- 38.6 -- 14.6 -- 6.9

465241096443700 02/28/06 1300 -- 24.4 -- 10.0 -- 6.2

465241096443700 05/09/06 1545 -- 20.7 -- 8.2 -- 6.5

465241096443700 06/13/06 1500 -- 25.9 -- 7.9 -- 7.1

465241096443700 07/18/06 1415 29.6 -- 7.6 -- 11.0 --

465241096443700 08/29/06 1315 26.9 -- 8.7 -- 12.9 --

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 -- 55.7 -- 46.4 -- 38.5

465340096441500 02/28/06 1335 -- 51.9 -- 44.0 -- 31.9

465340096441500 05/09/06 1600 -- 83.4 -- 86.0 -- 18.9

465340096441500 06/13/06 1520 -- 73.3 -- 62.1 -- 33.9

465340096441500 07/18/06 1430 50.8 -- 35.9 -- 31.9 --

465340096441500 08/29/06 1335 51.3 -- 27.3 -- 41.5 --

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 -- 53.3 -- 43.9 -- 33.2

465339096441600 02/28/06 1330 -- 57.4 -- 46.1 -- 34.1

465339096441600 05/09/06 1605 -- 88.5 -- 94.0 -- 27.2

465339096441600 06/13/06 1515 -- 69.7 -- 64.1 -- 37.3

465339096441600 07/18/06 1425 52.7 -- 39.0 -- 34.7 --

465339096441600 08/29/06 1330 52.9 -- 27.7 -- 41.9 --
40 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sodium 

adsorption 

ratio

(number)

Sodium 

fraction of 

cations 

(percent in 

equivalents of 

major cations)

Sodium,

filtered

(mg/L)

Sodium,

unfiltered

recoverable

(mg/L)

ANC,

unfiltered

(mg/L as 

CaCO3)

Bicarbonate,

unfiltered

(mg/L)

Water-treatment plant inflow

465242096443800 01/25/06 1515 0.8 16 -- 37.9 253 309

465242096443800 02/28/06 1305 .9 18 -- 39.2 261 318

465242096443800 05/09/06 1540 2.8 45 -- 107 257 314

465242096443800 06/13/06 1455 .5 11 -- 24.5 284 346

465242096443800 07/18/06 1410 .6 12 27.9 -- 310 379

465242096443800 08/29/06 1320 .6 14 29.6 -- 276 337

Water-treatment plant outflow

465241096443700 01/25/06 1505 2.9 52 -- 83.9 74 63

465241096443700 02/28/06 1300 2.9 57 -- 67.1 48 59

465241096443700 05/09/06 1545 5.9 74 -- 126 70 67

465241096443700 06/13/06 1500 3.9 64 -- 88.4 66 49

465241096443700 07/18/06 1415 2.5 55 59.8 -- 61 53

465241096443700 08/29/06 1315 2.7 57 62.2 -- 80 56

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 3.7 47 -- 156 272 332

465340096441500 02/28/06 1335 3.7 48 -- 151 255 311

465340096441500 05/09/06 1600 2.8 36 -- 155 337 411

465340096441500 06/13/06 1520 3.0 40 -- 146 316 386

465340096441500 07/18/06 1430 2.9 46 109 -- 252 308

465340096441500 08/29/06 1335 4.4 58 156 -- 274 335

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 3.7 48 -- 149 174 212

465339096441600 02/28/06 1330 4.0 49 -- 170 168 205

465339096441600 05/09/06 1605 2.6 33 -- 149 274 334

465339096441600 06/13/06 1515 3.0 39 -- 144 210 256

465339096441600 07/18/06 1425 2.9 46 115 -- 160 196

465339096441600 08/29/06 1330 2.8 47 99.7 -- 120 147
Water-Quality Data 41

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Silica,

unfiltered

(mg/L)

Water-treatment plant inflow

465242096443800 01/25/06 1515 <1 <1 19.8 0.17 -- 22.0

465242096443800 02/28/06 1305 <1 <1 30.2 .16 -- 18.6

465242096443800 05/09/06 1540 <1 <1 44.0 .23 -- 28.7

465242096443800 06/13/06 1455 <1 <1 9.4 .22 -- 28.6

465242096443800 07/18/06 1410 <1 <1 14.3 .22 27.9 --

465242096443800 08/29/06 1320 <1 <1 24.0 .21 14.7 --

Water-treatment plant outflow

465241096443700 01/25/06 1505 14 <1 25.3 .98 -- 9.57

465241096443700 02/28/06 1300 <1 <1 32.0 1.09 -- 4.46

465241096443700 05/09/06 1545 9 <1 25.5 1.17 -- 10.0

465241096443700 06/13/06 1500 15 <1 15.8 1.24 -- 6.72

465241096443700 07/18/06 1415 10 <1 27.8 1.17 7.17 --

465241096443700 08/29/06 1315 21 <1 28.6 1.08 6.66 --

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 <1 <1 91.0 .86 -- 14.4

465340096441500 02/28/06 1335 <1 <1 116 .91 -- 11.6

465340096441500 05/09/06 1600 <1 <1 84.4 .84 -- 21.9

465340096441500 06/13/06 1520 <1 <1 97.6 1.07 -- 21.0

465340096441500 07/18/06 1430 <1 <1 88.1 1.13 14.3 --

465340096441500 08/29/06 1335 <1 <1 108 1.04 13.5 --

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 <1 <1 83.3 .90 -- 14.4

465339096441600 02/28/06 1330 <1 <1 104 .96 -- 13.4

465339096441600 05/09/06 1605 <1 <1 88.8 .86 -- 17.3

465339096441600 06/13/06 1515 <1 <1 92.2 1.04 -- 15.3

465339096441600 07/18/06 1425 <1 <1 80.6 1.09 8.19 --

465339096441600 08/29/06 1330 <1 <1 96.8 1.05 12.6 --
42 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sulfate,

filtered

(mg/L)

Dissolved 

solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia 

plus organic 

nitrogen,

filtered

(mg/L as N)

Ammonia 

plus organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Water-treatment plant inflow

465242096443800 01/25/06 1515 220 578 <5 0.66 0.65 0.022

465242096443800 02/28/06 1305 141 495 -- .52 .54 .021

465242096443800 05/09/06 1540 222 627 30 1.0 1.0 .791

465242096443800 06/13/06 1455 202 552 31 .52 .36 .123

465242096443800 07/18/06 1410 204 603 6 .51 .45 .240

465242096443800 08/29/06 1320 179 557 14 .80 .67 .080

Water-treatment plant outflow

465241096443700 01/25/06 1505 217 434 <5 .72 .68 .443

465241096443700 02/28/06 1300 157 330 -- .74 .69 .460

465241096443700 05/09/06 1545 269 501 <5 .65 .57 .411

465241096443700 06/13/06 1500 240 428 <5 .76 .51 .458

465241096443700 07/18/06 1415 151 346 <5 .69 .59 .342

465241096443700 08/29/06 1315 152 368 <5 .68 .68 .431

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 330 883 142 26 28 23.4

465340096441500 02/28/06 1335 309 859 -- 25 31 22.2

465340096441500 05/09/06 1600 531 1,160 162 19 24 16.3

465340096441500 06/13/06 1520 417 1,020 130 21 23 19.0

465340096441500 07/18/06 1430 219 794 236 26 30 21.5

465340096441500 08/29/06 1335 217 831 269 28 33 24.4

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 328 862 <5 9.6 10 7.21

465339096441600 02/28/06 1330 367 941 -- 1.4 1.6 .490

465339096441600 05/09/06 1605 547 1,210 <5 5.4 5.6 4.02

465339096441600 06/13/06 1515 453 1,070 <5 7.1 8.2 7.17

465339096441600 07/18/06 1425 284 806 7 9.9 11 8.70

465339096441600 08/29/06 1330 205 738 7 5.5 6.2 3.90
Water-Quality Data 43

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate,

unfiltered

(mg/L as N)

Total 

nitrogen,

filtered

(mg/L)

Total 

nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Water-treatment plant inflow

465242096443800 01/25/06 1515 0.03 0.456 0.46 1.12 1.11 0.146

465242096443800 02/28/06 1305 .03 .429 .41 .95 .95 .196

465242096443800 05/09/06 1540 .77 .214 .18 1.21 1.18 .077

465242096443800 06/13/06 1455 .13 .252 .23 .77 .59 .045

465242096443800 07/18/06 1410 .25 .058 .05 .57 .50 .012

465242096443800 08/29/06 1320 .06 .083 .08 .89 .75 .051

Water-treatment plant outflow

465241096443700 01/25/06 1505 .44 .393 .40 1.11 1.08 .106

465241096443700 02/28/06 1300 .45 .425 .41 1.17 1.10 .145

465241096443700 05/09/06 1545 .41 .560 .56 1.21 1.13 .206

465241096443700 06/13/06 1500 .45 .733 .71 1.49 1.22 .179

465241096443700 07/18/06 1415 .35 .558 .56 1.25 1.15 .227

465241096443700 08/29/06 1315 .44 .529 .53 1.21 1.21 .221

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 24.6 .024 .02 25.6 28.2 4.02

465340096441500 02/28/06 1335 19.7 .038 .03 25.4 31.3 3.95

465340096441500 05/09/06 1600 15.1 .021 .02 19.4 24.0 2.68

465340096441500 06/13/06 1520 19.1 .032 .03 20.9 23.1 3.06

465340096441500 07/18/06 1430 21.8 .065 .06 25.6 29.9 3.56

465340096441500 08/29/06 1335 24.5 .027 .04 28.5 32.6 4.56

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 7.47 14.6 14.5 24.2 24.8 3.47

465339096441600 02/28/06 1330 .49 13.5 13.4 14.9 15.0 1.83

465339096441600 05/09/06 1605 4.10 12.2 12.1 17.6 17.7 2.32

465339096441600 06/13/06 1515 7.25 18.3 18.6 25.4 26.8 3.15

465339096441600 07/18/06 1425 8.68 17.7 17.5 27.6 28.1 3.51

465339096441600 08/29/06 1330 3.83 22.3 21.4 27.8 27.6 4.38
44 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Phosphorus,

unfiltered

(mg/L)

Organic 

carbon,

filtered

(mg/L)

Organic 

carbon,

unfiltered

(mg/L)

BOD,

20-day

(mg/L)

BOD,

5-day

(mg/L)

Escherichia 

coli

(colonies per 

100 mL)

Water-treatment plant inflow

465242096443800 01/25/06 1515 0.165 -- -- -- <30 10

465242096443800 02/28/06 1305 .204 -- -- -- -- --

465242096443800 05/09/06 1540 .171 -- -- -- -- --

465242096443800 06/13/06 1455 .172 -- -- -- -- --

465242096443800 07/18/06 1410 .056 -- -- -- -- --

465242096443800 08/29/06 1320 .088 -- -- -- -- --

Water-treatment plant outflow

465241096443700 01/25/06 1505 .112 -- -- -- <6 <10

465241096443700 02/28/06 1300 .145 -- -- -- -- --

465241096443700 05/09/06 1545 .210 -- -- -- -- --

465241096443700 06/13/06 1500 .177 -- -- -- -- --

465241096443700 07/18/06 1415 .231 -- -- -- -- --

465241096443700 08/29/06 1315 .226 -- -- -- -- --

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 5.38 -- -- -- 159 >1,600

465340096441500 02/28/06 1335 5.91 -- -- -- -- --

465340096441500 05/09/06 1600 3.86 -- -- -- -- --

465340096441500 06/13/06 1520 4.28 -- -- -- -- --

465340096441500 07/18/06 1430 5.39 -- -- -- -- --

465340096441500 08/29/06 1335 6.56 -- -- -- -- --

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 3.58 -- -- -- 19 820

465339096441600 02/28/06 1330 1.88 -- -- -- -- --

465339096441600 05/09/06 1605 2.30 10.8 11.6 32 -- 720

465339096441600 06/13/06 1515 3.49 -- -- -- -- <10

465339096441600 07/18/06 1425 3.62 -- -- -- -- --

465339096441600 08/29/06 1330 4.42 -- -- -- -- --
Water-Quality Data 45

Table 6. Analytical results for water-quality samples collected from the Moorhead, Minnesota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Fecal coliform

(colonies per 

100 mL)

Iron,

filtered

(μg/L)

Iron,

unfiltered

recoverable

(μg/L)

Manganese,

filtered

(μg/L)

Manganese,

unfiltered

recoverable

(μg/L)

NBOD,

20-day

(mg/L)

Water-treatment plant inflow

465242096443800 01/25/06 1515 10 -- 280 -- 30 --

465242096443800 02/28/06 1305 -- -- 90 -- 20 --

465242096443800 05/09/06 1540 -- -- 2,070 -- 100 --

465242096443800 06/13/06 1455 -- -- 2,720 -- 110 --

465242096443800 07/18/06 1410 -- 602 -- 158 -- --

465242096443800 08/29/06 1320 -- 49 -- 47 -- --

Water-treatment plant outflow

465241096443700 01/25/06 1505 <10 -- <10 -- 10 --

465241096443700 02/28/06 1300 -- -- 20 -- <10 --

465241096443700 05/09/06 1545 -- -- 360 -- 10 --

465241096443700 06/13/06 1500 -- -- 90 -- <10 --

465241096443700 07/18/06 1415 -- 14 -- <10 -- --

465241096443700 08/29/06 1315 -- 13 -- <10 -- --

Wastewater-treatment plant influent

465340096441500 01/25/06 1535 >1,600 -- 1,010 -- 160 --

465340096441500 02/28/06 1335 -- -- 270 -- 140 --

465340096441500 05/09/06 1600 -- -- 170 -- 210 --

465340096441500 06/13/06 1520 -- -- 210 -- 240 --

465340096441500 07/18/06 1430 -- 614 -- 158 -- --

465340096441500 08/29/06 1335 -- 189 -- 142 -- --

Wastewater-treatment plant effluent

465339096441600 01/25/06 1530 860 -- 120 -- 150 --

465339096441600 02/28/06 1330 -- -- 160 -- 110 --

465339096441600 05/09/06 1605 800 -- 210 -- 180 22.8

465339096441600 06/13/06 1515 <10 -- 170 -- 200 --

465339096441600 07/18/06 1425 -- 112 -- 93 -- --

465339096441600 08/29/06 1330 -- 89 -- 104 -- --
46 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Turbidity

(NTRU)

pH, field

(standard 

unit)

Specific 

conductance, 

field

(μS/cm at 

25°C)

Water 

temperature 

(°C)

Hardness

(mg/L as 

CaCO3)

Noncarbonate 

hardness

(mg/L as 

CaCO3) 

Water-treatment plant inflow

475517097011600 01/24/06 0810 -- 8.1 473 2.3 250 45

475517097011600 02/27/06 0820 -- 7.9 478 1.1 240 27

475517097011600 05/08/06 0810 93 8.3 525 14.3 290 --

475517097011600 06/12/06 0745 66 8.5 498 19.9 250 --

475517097011600 07/17/06 0815 75 8.4 565 26.5 250 56

475517097011600 08/30/06 0745 59 8.5 526 21.8 230 43

Water-treatment plant outflow

475516097012400 01/24/06 0820 -- 9.1 323 3.9 140 47

475516097012400 02/27/06 0815 -- 9.2 319 2.6 140 50

475516097012400 05/08/06 0815 <1.0 9.3 413 13.7 150 --

475516097012400 06/12/06 0755 1.7 9.3 334 20.1 130 --

475516097012400 07/17/06 0810 1.4 9.2 333 26.2 110 52

475516097012400 08/30/06 0750 1.2 9.2 334 22.2 110 44

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 -- 8.8 1,180 15.0 310 0

475708097083800 02/27/06 1410 -- 7.2 1,190 10.4 270 0

475708097083800 05/08/06 1520 210 7.5 2,210 17.5 790 --

475708097083800 06/12/06 1325 320 7.5 1,520 19.7 440 --

475708097083800 07/20/06 0900 340 7.4 1,390 9.4 380 14

475708097083800 08/30/06 1325 340 7.4 1,500 21.6 320 0

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 -- 7.7 2,190 8.2 650 240

475704097075500 02/27/06 1400 -- 7.7 2,410 1.3 700 220

475704097075500 05/08/06 1535 5 8.8 1,780 18.8 520 --

475704097075500 06/12/06 1345 53 8.2 1,550 20.4 410 --

475704097075500 07/20/06 0920 15 8.1 1,800 21.1 490 77

475704097075500 08/30/06 1345 28 8.9 1,910 20.9 550 250
Water-Quality Data 47

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Calcium,

filtered

(mg/L)

Calcium,

unfiltered

recoverable

(mg/L)

Magnesium,

filtered

(mg/L)

Magnesium,

unfiltered

recoverable

(mg/L)

Potassium,

filtered

(mg/L)

Potassium,

unfiltered

recoverable

(mg/L)

Water-treatment plant inflow

475517097011600 01/24/06 0810 -- 58.9 -- 24.6 -- 3.2

475517097011600 02/27/06 0820 -- 57.7 -- 23.0 -- 3.2

475517097011600 05/08/06 0810 -- 68.4 -- 29.4 -- 4.7

475517097011600 06/12/06 0745 -- 55.2 -- 26.2 -- 5.5

475517097011600 07/17/06 0815 52.6 -- 28.2 -- 3.94 --

475517097011600 08/30/06 0745 51.3 -- 24.9 -- 5.00 --

Water-treatment plant outflow

475516097012400 01/24/06 0820 -- 41.8 -- 8.1 -- 3.2

475516097012400 02/27/06 0815 -- 40.0 -- 8.9 -- 3.2

475516097012400 05/08/06 0815 -- 47.9 -- 7.2 -- 4.6

475516097012400 06/12/06 0755 -- 34.6 -- 9.8 -- 5.2

475516097012400 07/17/06 0810 28.7 -- 8.3 -- 4.14 --

475516097012400 08/30/06 0750 28.3 -- 8.8 -- 4.89 --

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 -- 68.8 -- 33.2 -- 29.4

475708097083800 02/27/06 1410 -- 58.7 -- 30.1 -- 45.4

475708097083800 05/08/06 1520 -- 138 -- 108 -- 68.8

475708097083800 06/12/06 1325 -- 81.2 -- 57.5 -- 99.8

475708097083800 07/20/06 0900 69.1 -- 49.2 -- 15.1 --

475708097083800 08/30/06 1325 64.7 -- 39.4 -- 85.9 --

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 -- 110 -- 90.2 -- 107

475704097075500 02/27/06 1400 -- 120 -- 96.9 -- 114

475704097075500 05/08/06 1535 -- 84.7 -- 73.6 -- 90.5

475704097075500 06/12/06 1345 -- 73.5 -- 55.7 -- 81.3

475704097075500 07/20/06 0920 83.9 -- 67.9 -- 97.2 --

475704097075500 08/30/06 1345 88.8 -- 78.8 -- 92.6 --
48 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sodium 

adsorption 

ratio

(number)

Sodium 

fraction of 

cations 

(percent in 

equivalents of 

major cations)

Sodium,

filtered

(mg/L)

Sodium,

unfiltered

recoverable

(mg/L)

ANC,

unfiltered

(mg/L as 

CaCO3)

Bicarbonate,

unfiltered

(mg/L)

Water-treatment plant inflow

475517097011600 01/24/06 0810 0.5 12 -- 16.7 203 247

475517097011600 02/27/06 0820 .4 11 -- 13.9 211 257

475517097011600 05/08/06 0810 .3 7 -- 10.4 171 209

475517097011600 06/12/06 0745 .3 9 -- 11.2 188 230

475517097011600 07/17/06 0815 .5 14 18.7 -- 192 230

475517097011600 08/30/06 0745 .5 14 17.1 -- 189 220

Water-treatment plant outflow

475516097012400 01/24/06 0820 .4 14 -- 11.1 91 84

475516097012400 02/27/06 0815 .5 16 -- 12.8 87 78

475516097012400 05/08/06 0815 .7 23 -- 20.9 76 73

475516097012400 06/12/06 0755 .5 17 -- 12.6 70 58

475516097012400 07/17/06 0810 .8 27 18.5 -- 56 46

475516097012400 08/30/06 0750 .8 27 18.2 -- 62 55

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 2.8 41 -- 112 347 413

475708097083800 02/27/06 1410 1.9 32 -- 72.3 332 405

475708097083800 05/08/06 1520 1.8 22 -- 116 409 499

475708097083800 06/12/06 1325 1.3 20 -- 64.8 366 446

475708097083800 07/20/06 0900 2.0 34 87.6 -- 360 440

475708097083800 08/30/06 1325 2.1 37 87.3 -- 355 434

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 2.6 29 -- 151 410 500

475704097075500 02/27/06 1400 2.6 29 -- 157 480 585

475704097075500 05/08/06 1535 2.4 30 -- 124 308 308

475704097075500 06/12/06 1345 2.1 29 -- 96.6 321 392

475704097075500 07/20/06 0920 2.4 35 120 -- 411 502

475704097075500 08/30/06 1345 2.4 34 130 -- 295 273
Water-Quality Data 49

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Silica,

unfiltered

(mg/L)

Water-treatment plant inflow

475517097011600 01/24/06 0810 <1 <1 6.17 0.12 -- 10.3

475517097011600 02/27/06 0820 <1 <1 6.03 .12 -- 8.65

475517097011600 05/08/06 0810 <1 <1 7.90 .12 -- 22.6

475517097011600 06/12/06 0745 <1 <1 7.35 .12 -- 21.5

475517097011600 07/17/06 0815 2 <1 13.4 .17 13.6 --

475517097011600 08/30/06 0745 5 <1 16.0 .17 11.3 --

Water-treatment plant outflow

475516097012400 01/24/06 0820 13 <1 8.45 1.14 -- 8.57

475516097012400 02/27/06 0815 14 <1 8.33 1.18 -- 8.24

475516097012400 05/08/06 0815 10 <1 10.6 1.16 -- 6.83

475516097012400 06/12/06 0755 13 <1 10.6 1.33 -- 6.08

475516097012400 07/17/06 0810 10 <1 15.3 1.32 6.91 --

475516097012400 08/30/06 0750 11 <1 17.7 .95 6.11 --

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 5 <1 63.4 1.05 -- 19.5

475708097083800 02/27/06 1410 <1 <1 82.1 .97 -- 11.4

475708097083800 05/08/06 1520 <1 <1 159 .88 -- 27.4

475708097083800 06/12/06 1325 <1 <1 86.4 .95 -- 27.4

475708097083800 07/20/06 0900 <1 <1 113 1.16 12.5 --

475708097083800 08/30/06 1325 <1 <1 133 .89 10.8 --

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 <1 <1 205 .41 -- 15.9

475704097075500 02/27/06 1400 <1 <1 223 .64 -- 15.4

475704097075500 05/08/06 1535 33 <1 191 .28 -- 15.6

475704097075500 06/12/06 1345 <1 <1 156 .35 -- 20.8

475704097075500 07/20/06 0920 <1 <1 175 .12 23.8 --

475704097075500 08/30/06 1345 43 <1 230 .06 17.7 --
50 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sulfate,

filtered

(mg/L)

Dissolved 

solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia 

plus organic 

nitrogen,

filtered

(mg/L as N)

Ammonia 

plus organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Water-treatment plant inflow

475517097011600 01/24/06 0810 38.3 272 10 0.69 0.64 0.085

475517097011600 02/27/06 0820 40.3 274 -- .80 .79 .069

475517097011600 05/08/06 0810 89.0 315 133 .81 .65 .087

475517097011600 06/12/06 0745 64.4 286 84 .71 .58 <.010

475517097011600 07/17/06 0815 83.8 346 107 .71 .48 <.010

475517097011600 08/30/06 0745 62.1 327 53 .67 .53 .016

Water-treatment plant outflow

475516097012400 01/24/06 0820 54.3 183 <5 .70 .68 .398

475516097012400 02/27/06 0815 56.3 184 -- .90 .84 .478

475516097012400 05/08/06 0815 105 244 <5 .75 .74 .441

475516097012400 06/12/06 0755 76.8 193 <5 .77 .66 .297

475516097012400 07/17/06 0810 75.0 203 <5 .78 .69 .366

475516097012400 08/30/06 0750 64.8 206 <5 .91 .83 .470

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 116 638 563 26 46 22.5

475708097083800 02/27/06 1410 95 585 -- 30 44 18.3

475708097083800 05/08/06 1520 558 1,400 513 26 48 24.1

475708097083800 06/12/06 1325 266 877 550 18 45 16.2

475708097083800 07/20/06 0900 138 862 399 32 36 29.0

475708097083800 08/30/06 1325 154 930 535 25 32 23.8

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 443 1,350 9 17 18 16.5

475704097075500 02/27/06 1400 456 1,460 -- 24 25 15.8

475704097075500 05/08/06 1535 325 1,080 22 9 10 7.96

475704097075500 06/12/06 1345 245 904 36 7.9 8.3 6.14

475704097075500 07/20/06 0920 267 1,120 18 12 12 10.5

475704097075500 08/30/06 1345 371 1,190 35 1.8 1.7 .020
Water-Quality Data 51

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate,

unfiltered

(mg/L as N)

Total 

nitrogen,

filtered

(mg/L)

Total 

nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Water-treatment plant inflow

475517097011600 01/24/06 0810 0.11 0.181 0.18 0.88 0.82 0.049

475517097011600 02/27/06 0820 .07 .192 .19 .99 .98 .035

475517097011600 05/08/06 0810 .03 .152 .14 .96 .79 .033

475517097011600 06/12/06 0745 <.01 .135 .13 .85 .71 .027

475517097011600 07/17/06 0815 <.01 .271 .26 .98 .74 .102

475517097011600 08/30/06 0745 <.01 .370 .35 1.04 .88 .088

Water-treatment plant outflow

475516097012400 01/24/06 0820 .43 .238 .23 .93 .91 .953

475516097012400 02/27/06 0815 .48 .252 .25 1.15 1.09 .915

475516097012400 05/08/06 0815 .46 .173 .17 .92 .91 1.14

475516097012400 06/12/06 0755 .30 .182 .17 .96 .83 1.16

475516097012400 07/17/06 0810 .36 .351 .35 1.13 1.04 1.44

475516097012400 08/30/06 0750 .46 .436 .42 1.35 1.25 1.39

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 22.5 1.31 1.32 26.8 46.8 3.88

475708097083800 02/27/06 1410 25.3 .030 .03 30.3 44.5 7.53

475708097083800 05/08/06 1520 24.2 <.020 .02 25.9 47.7 5.23

475708097083800 06/12/06 1325 16.5 <.020 <.02 17.6 45.1 10.6

475708097083800 07/20/06 0900 29.5 <.020 .02 31.5 36.3 5.02

475708097083800 08/30/06 1325 24 .289 .25 25.7 32.2 11.3

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 16.5 .035 .04 17.2 17.8 5.74

475704097075500 02/27/06 1400 22.3 .036 .04 24.0 24.8 8.85

475704097075500 05/08/06 1535 7.9 .243 .23 9.25 10.2 2.92

475704097075500 06/12/06 1345 6.23 .099 .09 7.96 8.42 3.13

475704097075500 07/20/06 0920 10.7 .492 .52 12.8 13.0 2.67

475704097075500 08/30/06 1345 .02 .032 .03 1.87 1.76 .873
52 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Phosphorus,

unfiltered

(mg/L)

Organic 

carbon,

filtered

(mg/L)

Organic 

carbon,

unfiltered

(mg/L)

BOD,

20-day

(mg/L)

BOD,

5-day

(mg/L)

Escherichia 

coli

(colonies per 

100 mL)

Water-treatment plant inflow

475517097011600 01/24/06 0810 0.056 -- -- -- <30 <10

475517097011600 02/27/06 0820 .053 -- -- -- -- --

475517097011600 05/08/06 0810 .112 -- -- -- -- --

475517097011600 06/12/06 0745 .088 -- -- -- -- --

475517097011600 07/17/06 0815 .174 -- -- -- -- --

475517097011600 08/30/06 0745 .134 -- -- -- -- --

Water-treatment plant outflow

475516097012400 01/24/06 0820 .971 -- -- -- <6 <10

475516097012400 02/27/06 0815 .928 -- -- -- -- --

475516097012400 05/08/06 0815 1.17 -- -- -- -- --

475516097012400 06/12/06 0755 1.17 -- -- -- -- --

475516097012400 07/17/06 0810 1.46 -- -- -- -- --

475516097012400 08/30/06 0750 1.37 -- -- -- -- --

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 10.7 -- -- -- 297 >1,600

475708097083800 02/27/06 1410 12.7 -- -- -- -- --

475708097083800 05/08/06 1520 11.7 -- -- -- -- --

475708097083800 06/12/06 1325 18.1 -- -- -- -- --

475708097083800 07/20/06 0900 7.73 -- -- -- -- --

475708097083800 08/30/06 1325 13.8 -- -- -- -- --

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 6.02 -- -- -- 9 >1,600

475704097075500 02/27/06 1400 9.05 -- -- -- -- --

475704097075500 05/08/06 1535 3.30 15.2 15.8 50 -- <10

475704097075500 06/12/06 1345 4.98 -- -- -- -- <10

475704097075500 07/20/06 0920 3.04 -- -- -- -- --

475704097075500 08/30/06 1345 1.16 -- -- -- -- --
Water-Quality Data 53

Table 7. Analytical results for water-quality samples collected from the Grand Forks, North Dakota, water- and wastewater-treatment 

plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Fecal 

coliform

(colonies per 

100 mL)

Iron,

filtered

(μg/L)

Iron,

unfiltered

recoverable

(μg/L)

Manganese,

filtered

(μg/L)

Manganese,

unfiltered

recoverable

(μg/L)

NBOD,

20-day

(mg/L)

Water-treatment plant inflow

475517097011600 01/24/06 0810 <10 -- 340 -- 40 --

475517097011600 02/27/06 0820 -- -- 50 -- 20 --

475517097011600 05/08/06 0810 -- -- 330 -- 190 --

475517097011600 06/12/06 0745 -- -- 270 -- 190 --

475517097011600 07/17/06 0815 -- <10 -- <10 -- --

475517097011600 08/30/06 0745 -- 21 -- <10 -- --

Water-treatment plant outflow

475516097012400 01/24/06 0820 <10 -- <10 -- <10 --

475516097012400 02/27/06 0815 -- -- 40 -- <10 --

475516097012400 05/08/06 0815 -- -- 130 -- <10 --

475516097012400 06/12/06 0755 -- -- 100 -- <10 --

475516097012400 07/17/06 0810 -- 25 -- <10 -- --

475516097012400 08/30/06 0750 -- 22 -- <10 -- --

Wastewater-treatment plant influent

475708097083800 01/24/06 1435 >1,600 -- 2,420 -- 200 --

475708097083800 02/27/06 1410 -- -- 160 -- 140 --

475708097083800 05/08/06 1520 -- -- 3,850 -- 300 --

475708097083800 06/12/06 1325 -- -- 410 -- 350 --

475708097083800 07/20/06 0900 -- 99 -- 100 -- --

475708097083800 08/30/06 1325 -- 36 -- 169 -- --

Wastewater-treatment plant effluent

475704097075500 01/24/06 1445 >1,600 -- 210 -- 190 --

475704097075500 02/27/06 1400 -- -- 150 -- 240 --

475704097075500 05/08/06 1535 <10 -- 200 -- 40 46

475704097075500 06/12/06 1345 <10 -- 1,330 -- 180 --

475704097075500 07/20/06 0920 -- 45 -- 108 -- --

475704097075500 08/30/06 1345 -- 45 -- 24 -- --
54 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Turbidity

(NTRU)

pH, field

(standard 

unit)

Specific 

conductance, 

field

(μS/cm at 

25°C)

Water 

temperature 

(°C)

Hardness

(mg/L as 

CaCO3)

Noncarbonate 

hardness

(mg/L as 

CaCO3) 

Water-treatment plant inflow

475525097003500 01/24/06 1100 -- 7.9 416 2.3 220 23

475525097003500 02/27/06 1025 -- 8.1 398 1.8 210 18

475525097003500 05/08/06 0930 51 8.3 462 14.3 250 --

475525097003500 06/12/06 0930 42 8.4 388 19.8 190 --

475525097003500 07/17/06 1010 54 8.8 344 27.1 160 1

475525097003500 08/30/06 0905 55 8.3 365 22.0 180 17

Water-treatment plant outflow

475526097003400 01/24/06 1110 -- 9.2 282 8.0 110 29

475526097003400 02/27/06 1015 <1.0 9.6 274 6.5 110 26

475526097003400 05/08/06 0935 <1.0 9.5 394 17.0 110 --

475526097003400 06/12/06 0925 43 9.1 288 21.2 130 --

475526097003400 07/17/06 1015 1.3 9.5 272 26.5 110 20

475526097003400 08/30/06 0855 69 9 302 22.4 120 32

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 -- 7.8 1,270 10.5 420 110

475608097015300 02/27/06 1245 -- 8.2 955 8.9 250 29

475608097015300 05/08/06 1055 50 7.8 1,910 11.3 920 --

475608097015300 06/12/06 1040 190 7.9 1,710 14.1 720 --

475608097015300 07/17/06 1100 320 8.2 597 21.8 190 40

475608097015300 08/30/06 1030 160 7.6 1,150 18.5 340 36

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 -- 8.2 1,740 1.3 790 410

475828097031500 02/27/06 1300 -- 7.9 1,880 2.4 850 370

475828097031500 05/08/06 1335 13 9.4 1,210 19.3 530 --

475828097031500 06/12/06 1020 20 8.1 1,280 19.1 490 --

475828097031500 07/17/06 1110 43 9.2 1,490 26.8 640 340

475828097031500 08/30/06 1045 50 9.8 1,370 20.2 560 390
Water-Quality Data 55

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Calcium,

filtered

(mg/L)

Calcium,

unfiltered

recoverable

(mg/L)

Magnesium,

filtered

(mg/L)

Magnesium,

unfiltered

recoverable

(mg/L)

Potassium,

filtered

(mg/L)

Potassium,

unfiltered

recoverable

(mg/L)

Water-treatment plant inflow

475525097003500 01/24/06 1100 -- 55.0 -- 20.2 -- 2.8

475525097003500 02/27/06 1025 -- 53.0 -- 18.6 -- 2.4

475525097003500 05/08/06 0930 -- 63.0 -- 23.5 -- 3.6

475525097003500 06/12/06 0930 -- 47.5 -- 18.3 -- 3.6

475525097003500 07/17/06 1010 40.5 -- 15.3 -- 2.27 --

475525097003500 08/30/06 0905 45.6 -- 16.3 -- 2.50 --

Water-treatment plant outflow

475526097003400 01/24/06 1110 -- 42.9 -- <1.00 -- 2.9

475526097003400 02/27/06 1015 -- 43.9 -- <1.00 -- 2.7

475526097003400 05/08/06 0935 -- 42.2 -- <1.00 -- 4.0

475526097003400 06/12/06 0925 -- 49.0 -- 1.50 -- 4.2

475526097003400 07/17/06 1015 41.8 -- <1.00 -- 2.99 --

475526097003400 08/30/06 0855 44.7 -- <1.00 -- 3.01 --

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 -- 92.4 -- 45.4 -- 13.3

475608097015300 02/27/06 1245 -- 63.7 -- 22.5 -- 10.6

475608097015300 05/08/06 1055 -- 152 -- 130 -- 9.5

475608097015300 06/12/06 1040 -- 130 -- 96.5 -- 14.4

475608097015300 07/17/06 1100 51.8 -- 14.7 -- 6.41 --

475608097015300 08/30/06 1030 76.9 -- 36.8 -- 10.8 --

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 -- 126 -- 115 -- 18.5

475828097031500 02/27/06 1300 -- 143 -- 119 -- 18.8

475828097031500 05/08/06 1335 -- 90.1 -- 75.1 -- 13.6

475828097031500 06/12/06 1020 -- 78.5 -- 71.5 -- 14.7

475828097031500 07/17/06 1110 96.9 -- 96.0 -- 15.2 --

475828097031500 08/30/06 1045 71.9 -- 91.2 -- 14.5 --
56 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sodium 

adsorption 

ratio

(number)

Sodium 

fraction of 

cations 

(percent in 

equivalents of 

major cations)

Sodium,

filtered

(mg/L)

Sodium,

unfiltered

recoverable

(mg/L)

ANC,

unfiltered

(mg/L as 

CaCO3)

Bicarbonate,

unfiltered

(mg/L)

Water-treatment plant inflow

475525097003500 01/24/06 1100 0.2 5 -- 5.5 197 240

475525097003500 02/27/06 1025 .2 6 -- 6.3 189 231

475525097003500 05/08/06 0930 .2 5 -- 6.8 168 205

475525097003500 06/12/06 0930 .1 5 -- 4.9 179 218

475525097003500 07/17/06 1010 .2 6 4.8 -- 162 198

475525097003500 08/30/06 0905 .1 5 4.6 -- 163 199

Water-treatment plant outflow

475526097003400 01/24/06 1110 .7 24 -- 17.0 82 74

475526097003400 02/27/06 1015 .5 20 -- 13.3 87 65

475526097003400 05/08/06 0935 1.6 41 -- 37.3 82 68

475526097003400 06/12/06 0925 .6 20 -- 15.5 78 86

475526097003400 07/17/06 1015 .5 18 10.9 -- 87 71

475526097003400 08/30/06 0855 .6 20 13.8 -- 84 82

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 1.6 27 -- 74.7 303 370

475608097015300 02/27/06 1245 1.6 32 -- 57.9 221 270

475608097015300 05/08/06 1055 1.1 16 -- 79.7 409 499

475608097015300 06/12/06 1040 1.2 18 -- 72.6 387 472

475608097015300 07/17/06 1100 .9 24 28.5 -- 148 181

475608097015300 08/30/06 1030 2.0 35 85.1 -- 307 374

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 1.6 22 -- 105 379 463

475828097031500 02/27/06 1300 1.6 20 -- 104 476 580

475828097031500 05/08/06 1335 1.3 22 -- 71.3 283 197

475828097031500 06/12/06 1020 1.3 21 -- 64.2 248 302

475828097031500 07/17/06 1110 1.4 22 84.4 -- 299 301

475828097031500 08/30/06 1045 1.6 25 86.7 -- 168 76
Water-Quality Data 57

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Silica,

unfiltered

(mg/L)

Water-treatment plant inflow

475525097003500 01/24/06 1100 <1 <1 4.50 0.12 -- 9.20

475525097003500 02/27/06 1025 <1 <1 3.93 .10 -- 7.23

475525097003500 05/08/06 0930 <1 <1 6.13 .11 -- 17.2

475525097003500 06/12/06 0930 <1 <1 5.26 .10 -- 13.1

475525097003500 07/17/06 1010 <1 <1 4.37 .12 8.26 --

475525097003500 08/30/06 0905 <1 <1 5.70 .11 9.16 --

Water-treatment plant outflow

475526097003400 01/24/06 1110 13 <1 8.92 .87 -- 7.32

475526097003400 02/27/06 1015 21 <1 8.14 .89 -- 6.64

475526097003400 05/08/06 0935 16 <1 10.6 .94 -- 7.41

475526097003400 06/12/06 0925 4 <1 10.3 .99 -- 6.22

475526097003400 07/17/06 1015 18 <1 7.93 1.0 7.76 --

475526097003400 08/30/06 0855 10 <1 8.82 .90 7.33 --

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 <1 <1 65.2 .66 -- 18.1

475608097015300 02/27/06 1245 <1 <1 69.5 .74 -- 9.05

475608097015300 05/08/06 1055 <1 <1 55.5 .53 -- 24.6

475608097015300 06/12/06 1040 <1 <1 80.9 .59 -- 31.7

475608097015300 07/17/06 1100 <1 <1 28.0 .89 9.34 --

475608097015300 08/30/06 1030 <1 <1 58.9 .73 12.9 --

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 <1 <1 86.7 .67 -- 14.7

475828097031500 02/27/06 1300 <1 <1 93.4 .66 -- 19.7

475828097031500 05/08/06 1335 73 <1 62.5 .50 -- 10.5

475828097031500 06/12/06 1020 <1 <1 68.3 .53 -- 24.8

475828097031500 07/17/06 1110 31 <1 82.0 .61 15.5 --

475828097031500 08/30/06 1045 64 <1 86.4 .43 5.90 --
58 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Sulfate,

filtered

(mg/L)

Dissolved 

solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia 

plus 

organic 

nitrogen,

filtered

(mg/L as N)

Ammonia 

plus 

organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Water-treatment plant inflow

475525097003500 01/24/06 1100 21.1 230 9 0.77 0.60 0.088

475525097003500 02/27/06 1025 14.5 215 -- .77 .77 .070

475525097003500 05/08/06 0930 64.5 271 81 .73 .67 .014

475525097003500 06/12/06 0930 17.7 207 50 .69 .57 <.010

475525097003500 07/17/06 1010 10.2 210 71 .70 .46 <.010

475525097003500 08/30/06 0905 24.1 227 52 .68 .49 <.010

Water-treatment plant outflow

475526097003400 01/24/06 1110 42.1 166 11 .72 .70 .520

475526097003400 02/27/06 1015 39.1 163 -- .68 .61 .334

475526097003400 05/08/06 0935 89.9 236 <5 .45 .42 .184

475526097003400 06/12/06 0925 46.5 175 45 .80 .85 .387

475526097003400 07/17/06 1015 37.1 169 <5 .65 .56 .278

475526097003400 08/30/06 0855 50.6 188 69 .72 .91 .358

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 242 718 148 37 40 28.8

475608097015300 02/27/06 1245 137 497 -- 26 28 15.5

475608097015300 05/08/06 1055 601 1,280 125 20 24 13.6

475608097015300 06/12/06 1040 453 1,080 361 31 33 23.1

475608097015300 07/17/06 1100 112 371 2,100 8.9 8.9 7.57

475608097015300 08/30/06 1030 173 725 166 34 36 29.8

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 478 1,160 27 4.7 4.6 3.19

475828097031500 02/27/06 1300 471 1,240 -- 6.4 7.3 3.88

475828097031500 05/08/06 1335 330 814 21 1.2 1.8 .051

475828097031500 06/12/06 1020 350 798 38 4.3 4.5 2.48

475828097031500 07/17/06 1110 424 911 31 1.9 2.2 <.010

475828097031500 08/30/06 1045 472 856 24 2.2 1.9 <.010
Water-Quality Data 59

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate,

unfiltered

(mg/L as N)

Total 

nitrogen,

filtered

(mg/L)

Total 

nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Water-treatment plant inflow

475525097003500 01/24/06 1100 0.10 0.116 0.14 0.89 0.74 0.032

475525097003500 02/27/06 1025 .07 .117 .11 .88 .88 .014

475525097003500 05/08/06 0930 .02 .031 .03 .77 .70 .020

475525097003500 06/12/06 0930 <.01 <.020 <.020 .71 .59 <.004

475525097003500 07/17/06 1010 <.01 <.020 <.020 .72 .48 <.004

475525097003500 08/30/06 0905 <.01 .032 .03 .71 .53 .007

Water-treatment plant outflow

475526097003400 01/24/06 1110 .59 .177 .17 .90 .87 1.90

475526097003400 02/27/06 1015 .35 .157 .16 .83 .77 1.50

475526097003400 05/08/06 0935 .17 .099 .10 .55 .52 1.35

475526097003400 06/12/06 0925 .40 .103 .10 .90 .95 1.36

475526097003400 07/17/06 1015 .29 .080 .08 .73 .64 1.21

475526097003400 08/30/06 0855 .37 .058 .04 .78 .95 1.44

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 29.2 .203 .23 36.9 40.3 5.87

475608097015300 02/27/06 1245 19.8 .302 .28 26.6 28.0 3.98

475608097015300 05/08/06 1055 12.9 1.39 1.39 21.8 25.7 3.19

475608097015300 06/12/06 1040 23.2 .277 .26 31.0 33.5 4.05

475608097015300 07/17/06 1100 7.70 .057 .05 8.94 9.00 1.96

475608097015300 08/30/06 1030 30.5 .039 .04 34.2 35.7 5.23

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 3.40 .058 .06 4.74 4.68 3.64

475828097031500 02/27/06 1300 3.76 .022 .12 6.46 7.38 5.82

475828097031500 05/08/06 1335 .09 <.020 <.020 1.21 1.80 .828

475828097031500 06/12/06 1020 2.47 <.020 <.020 4.34 4.50 2.01

475828097031500 07/17/06 1110 <.01 .027 .03 1.89 2.23 1.96

475828097031500 08/30/06 1045 .03 .053 .44 2.29 2.32 .210
60 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Phosphorus,

unfiltered

(mg/L)

Organic 

carbon,

filtered

(mg/L)

Organic 

carbon,

unfiltered

(mg/L)

BOD,

20-day

(mg/L)

BOD,

5-day

(mg/L)

Escherichia 

coli

(colonies per 

100 mL)

Water-treatment plant inflow

475525097003500 01/24/06 1100 0.037 -- -- -- <30 10

475525097003500 02/27/06 1025 .028 -- -- -- -- --

475525097003500 05/08/06 0930 .073 -- -- -- -- --

475525097003500 06/12/06 0930 .056 -- -- -- -- --

475525097003500 07/17/06 1010 .038 -- -- -- -- --

475525097003500 08/30/06 0905 .043 -- -- -- -- --

Water-treatment plant outflow

475526097003400 01/24/06 1110 2.08 -- -- -- <6 <10

475526097003400 02/27/06 1015 1.52 -- -- -- -- --

475526097003400 05/08/06 0935 1.31 -- -- -- -- --

475526097003400 06/12/06 0925 2.38 -- -- -- -- --

475526097003400 07/17/06 1015 1.22 -- -- -- -- --

475526097003400 08/30/06 0855 3.43 -- -- -- -- --

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 8.03 -- -- -- 169 >1,600

475608097015300 02/27/06 1245 6.19 -- -- -- -- --

475608097015300 05/08/06 1055 4.55 -- -- -- -- --

475608097015300 06/12/06 1040 5.95 -- -- -- -- --

475608097015300 07/17/06 1100 4.90 -- -- -- -- --

475608097015300 08/30/06 1030 6.72 -- -- -- -- --

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 3.78 -- -- -- <6 <10

475828097031500 02/27/06 1300 6.00 -- -- -- -- --

475828097031500 05/08/06 1335 1.12 12.6 13.2 19 -- <10

475828097031500 06/12/06 1020 2.48 -- -- -- -- <10

475828097031500 07/17/06 1110 2.26 -- -- -- -- --

475828097031500 08/30/06 1045 .284 -- -- -- -- --
Water-Quality Data 61

Table 8. Analytical results for water-quality samples collected from the East Grand Forks, Minnesota, water- and wastewatertreatment plants.—Continued

[NTRU, nephelometric turbidity ratio unit; μS/cm, microsiemens per centimeter; °C, degrees Celsius; mg/L, milligrams per liter; CaCO3, calcium carbonate; 

--, no data; ANC, acid neutralizing capacity; <, less than; BOD, biochemical oxygen demand; mL, milliliters; μg/L, micrograms per liter; NBOD, nitrogenous 

biochemical oxygen demand; >, greater than]

Location and

USGS station 

number

Sample 

date

Sample 

time

Fecal 

coliform

(colonies per 

100 mL)

Iron,

filtered

(μg/L)

Iron,

unfiltered

recoverable

(μg/L)

Manganese,

filtered

(μg/L)

Manganese,

unfiltered

recoverable

(μg/L)

NBOD,

20-day

(mg/L)

Water-treatment plant inflow

475525097003500 01/24/06 1100 10 -- 330 -- 30 --

475525097003500 02/27/06 1025 -- -- 70 -- 20 --

475525097003500 05/08/06 0930 -- -- 240 -- 140 --

475525097003500 06/12/06 0930 -- -- 160 -- 150 --

475525097003500 07/17/06 1010 -- 41 -- <10 -- --

475525097003500 08/30/06 0905 -- 15 -- <10 -- --

Water-treatment plant outflow

475526097003400 01/24/06 1110 <10 -- 50 -- <10 --

475526097003400 02/27/06 1015 -- -- 40 -- <10 --

475526097003400 05/08/06 0935 -- -- 170 -- <10 --

475526097003400 06/12/06 0925 -- -- 260 -- 10 --

475526097003400 07/17/06 1015 -- 44 -- <10 -- --

475526097003400 08/30/06 0855 -- 19 -- <10 -- --

Wastewater-treatment plant influent

475608097015300 01/24/06 1145 >1,600 -- 2,240 -- 130 --

475608097015300 02/27/06 1245 -- -- 120 -- 240 --

475608097015300 05/08/06 1055 -- -- 1,360 -- 130 --

475608097015300 06/12/06 1040 -- -- 3,160 -- 230 --

475608097015300 07/17/06 1100 -- 45 -- 369 -- --

475608097015300 08/30/06 1030 -- 105 -- 59 -- --

Wastewater-treatment plant effluent

475828097031500 01/24/06 1225 <10 -- 470 -- 560 --

475828097031500 02/27/06 1300 -- -- 90 -- 90 --

475828097031500 05/08/06 1335 <10 -- 350 -- 140 5.94

475828097031500 06/12/06 1020 <10 -- 740 -- 300 --

475828097031500 07/17/06 1110 -- 103 -- 81 -- --

475828097031500 08/30/06 1045 -- 46 -- <10 -- --
62 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 9. Analytical results for quality-assurance/quality-control field blank sample.

[mg/L, milligrams per liter; ANC, acid neutralizing capacity; CaCO3, calcium carbonate; <, less than; μg/L, micrograms per liter]

Sample date Sample time

Calcium,

filtered

(mg/L)

Magnesium,

filtered

(mg/L)

Potassium,

filtered

(mg/L)

Sodium,

filtered

(mg/L)

ANC,

unfiltered

(mg/L as CaCO3)

7/17/2006 0805 <2.00 <1.00 <1.00 <3.00 6

Bicarbonate,

unfiltered

(mg/L)

Carbonate,

unfiltered

(mg/L)

Hydroxide,

unfiltered 

(mg/L)

Chloride,

filtered

(mg/L)

Fluoride,

filtered

(mg/L)

Silica,

filtered

(mg/L)

Sulfate,

filtered

(mg/L)

7 <1 <1 <0.30 0.42 <2.00 <0.30

Dissolved solids

(mg/L)

Total 

suspended 

solids

(mg/L)

Ammonia plus 

organic nitrogen,

filtered

(mg/L as N)

Ammonia plus 

organic nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus nitrate,

filtered

(mg/L as N)

1 <5 <0.08 <0.08 <0.010 <0.01 <0.020

Total nitrogen, 

filtered 

(mg/L)

Total nitrogen,

unfiltered

(mg/L)

Phosphorus,

filtered

(mg/L)

Phosphorus,

unfiltered

(mg/L)

Iron,

filtered

(μg/L)

Manganese,

filtered

(μg/L)

0.06 <0.01 <0.004 <0.004 12 <10
Water-Quality Data 63

Table 10. Analytical results and relative standard deviations for quality-assurance/quality-control replicate samples for select water- and wastewater-treatment plants within the Red River of the North Basin, North Dakota and Minnesota.[mg/L, milligrams per liter; --, no data; <, less than; μg/L, micrograms per liter]

Site number Site name Sample date Sample time Calcium, filtered (mg/L) Calcium, unfiltered recoverable (mg/L) Magnesium, filtered (mg/L) Magnesium, unfiltered recoverable (mg/L) Potassium, filtered (mg/L) Potassium, unfiltered recoverable (mg/L) Sodium, filtered (mg/L) Sodium, unfiltered recoverable (mg/L)

461604096351900 Water-treatment plant inflow 

at Breckenridge, Minnesota

05/09/06 0800 -- 95.4 -- 39.9 -- 6.4 -- 49.505/09/06 0805 -- 99.4 -- 39.3 -- 7.2 -- 50.407/19/06 1220 100 -- 40.3 -- 7.09 -- 50.3 --07/19/06 1225 102 -- 41.0 -- 7.46 -- 51.5 --

461605096352000 Water-treatment plant 

outflow at Breckenridge, Minnesota

07/19/06 1230 22.6 -- 16.7 -- 6.58 -- 50.3 --07/19/06 1235 23.0 -- 17.1 -- 6.93 -- 51.4 --

461834096333400 Wastewater-treatment plant 

effluent at Breckenridge, Minnesota

05/09/06 0840 -- 130 -- 161 -- 13.4 -- 16405/09/06 0845 -- 130 -- 161 -- 13.4 -- 164

461749096363800 Wastewater-treatment plant 

influent at Wahpeton, North Dakota

07/19/06 0850 114 -- 93.3 -- 32.2 -- 157 --07/19/06 0855 117 -- 95.5 -- 32.9 -- 160 --

462009096371600 Wastewater-treatment plant 

effluent at Wahpeton, North Dakota

06/13/06 0820 -- 117 -- 97.1 -- 32.4 -- 15006/13/06 0825 -- 116 -- 95.8 -- 32.7 -- 149

465308096545800 Water-treatment plant inflow 

at West Fargo, North Dakota

08/07/06 1305 45.7 -- 17.0 -- 7.36 -- 364 --08/07/06 1310 46.5 -- 16.7 -- 6.85 -- 345 --

465309096545700 Water-treatment plant outflow at West Fargo, North 

Dakota

08/07/06 1315 47.7 -- 17.5 -- 7.58 -- 369 --08/07/06 1320 46.4 -- 17.6 -- 7.34 -- 372 --

475517097011600 Water-treatment plant inflow 

at Grand Forks, North Dakota

01/24/06 0810 -- 58.9 -- 24.6 -- 3.2 -- 16.701/24/06 0815 -- 55.9 -- 22.6 -- 3.0 -- 9.0

475516097012400 Water-treatment plant 

outflow at Grand Forks, North Dakota

01/24/06 0820 -- 41.8 -- 8.1 -- 3.2 -- 11.101/24/06 0825 -- 41.6 -- 8.1 -- 3.2 -- 11.2

475525097003500 Water-treatment plant inflow 

at East Grand Forks, Minnesota

02/27/06 1025 -- 53.0 -- 18.6 -- 2.4 -- 6.302/27/06 1030 -- 52.8 -- 18.3 -- 2.4 -- 5.608/30/06 0905 45.6 -- 16.3 -- 2.50 -- 4.6 --08/30/06 0910 45.8 -- 16.3 -- 2.53 -- 4.6 --

475526097003400 Water-treatment plant outflow at East Grand Forks, 

Minnesota

02/27/06 1015 -- 43.9 -- <1.0 -- 2.7 -- 13.302/27/06 1020 -- 44.1 -- <1.0 -- 2.7 -- 13.208/30/06 0855 44.7 -- <1.0 -- 3.01 -- 13.8 --08/30/06 0900 45.1 -- <1.0 -- 3.07 -- 13.8 --

475828097031500 Wastewater-treatment plant 

effluent at East Grand Forks, Minnesota

08/30/06 1045 71.9 -- 91.2 -- 14.5 -- 86.7 --08/30/06 1050 70.6 -- 88.9 -- 13.2 -- 84.0 --

Number of replicate samples with complete analytical results for given 

parameter

8 7 8 7 8 7 8 7

Median relative standard deviation, in percent, for all replicate pairs 1.7 1.6 1.9 1.2 4.1 2.4 3.6 3.4
64 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North

Table 10. Analytical results and relative standard deviations for quality-assurance/quality-control replicate samples for select water- and wastewater-treatment plants within the Red River of the North Basin, North Dakota and Minnesota.—Continued[mg/L, milligrams per liter; --, no data; <, less than; μg/L, micrograms per liter]

Site number Site name Sample date Sample time Chloride, filtered (mg/L) Fluoride, filtered (mg/L) Silica, filtered (mg/L) Silica, unfiltered (mg/L) Sulfate, filtered (mg/L) Dissolved solids (mg/L) Total suspended solids (mg/L) Ammonia plus organic nitrogen, filtered (mg/L as N)

461604096351900 Water-treatment plant 

inflow at Breckenridge, Minnesota

05/09/06 0800 10.3 0.40 -- 31.1 152 593 <5 1.605/09/06 0805 10.2 .39 -- 30.7 152 600 <5 1.607/19/06 1220 10.2 .35 31.4 -- 153 620 <5 1.507/19/06 1225 10.6 .35 31.7 -- 153 620 <5 1.6

461605096352000 Water-treatment plant 

outflow at Breckenridge, Minnesota

07/19/06 1230 14.7 1.25 14.3 -- 152 329 <5 .7107/19/06 1235 14.9 1.25 14.4 153 329 <5 .70

461834096333400 Wastewater-treatment plant 

effluent at Breckenridge, Minnesota

05/09/06 0840 79.4 .59 -- 9.7 982 1,700 22 2.805/09/06 0845 79.4 .59 -- 9.7 982 1,700 22 2.8

461749096363800 Wastewater-treatment plant 

influent at Wahpeton, North Dakota

07/19/06 0850 105 1.22 24.8 -- 670 1,260 84 1807/19/06 0855 108 1.27 25.5 -- 685 1,260 102 18

462009096371600 Wastewater-treatment plant 

effluent at Wahpeton, North Dakota

06/13/06 0820 117 .86 -- 31.0 700 1,390 27 1206/13/06 0825 115 .85 -- 30.8 687 1,370 24 12

465308096545800 Water-treatment plant 

inflow at West Fargo, North Dakota

08/07/06 1305 343 .67 27.4 -- 57.3 1,180 <5 1.808/07/06 1310 349 .70 27.1 -- 58.1 1,180 <5 1.7

465309096545700 Water-treatment plant 

outflow at West Fargo, North Dakota

08/07/06 1315 345 -- 38.0 -- 56.0 1,190 <5 .6608/07/06 1320 346 -- 37.3 -- 56.0 1,180 <5 .76

475517097011600 Water-treatment plant 

inflow at Grand Forks, North Dakota

01/24/06 0810 6.17 .12 -- 10.3 38.3 272 10 .6901/24/06 0815 6.07 .11 -- 10.1 37.9 259 11 .72

475516097012400 Water-treatment plant 

outflow at Grand Forks, North Dakota

01/24/06 0820 8.45 1.14 -- 8.57 54.3 183 <5 .7001/24/06 0825 8.43 1.13 -- 8.57 54.6 182 <5 .77

475525097003500 Water-treatment plant 

inflow at East Grand Forks, Minnesota

02/27/06 1025 3.93 .10 -- 7.23 14.5 215 -- .7702/27/06 1030 3.84 .11 -- 6.97 14.7 215 -- .7608/30/06 0905 5.70 .11 9.16 -- 24.1 227 52 .6808/30/06 0910 5.60 .11 9.05 -- 24.0 226 52 .66

475526097003400 Water-treatment plant 

outflow at East Grand Forks, Minnesota

02/27/06 1015 8.14 .89 6.64 6.64 39.1 163 -- .6802/27/06 1020 7.60 .88 6.68 6.68 39.4 161 -- .4008/30/06 0855 8.82 .90 7.33 -- 50.6 188 69 .7208/30/06 0900 8.70 .89 7.41 -- 50.1 187 2.5 .74

475828097031500 Wastewater-treatment plant 

effluent at East Grand Forks, Minnesota

08/30/06 1045 86.4 .43 5.90 -- 472 856 24 2.208/30/06 1050 85.8 .42 5.74 -- 474 856 23 2.2

Number of replicate samples with complete analytical results for given 

parameter

15 14 8 7 15 15 13 15

Median relative standard deviation, in percent, for all replicate pairs 1.7 1.9 1.5 .9 1.5 .7 50.1 2.0
Water-Quality Data 65

Table 10. Analytical results and relative standard deviations for quality-assurance/quality-control replicate samples for select water- and wastewater-treatment plants within the Red River of the North Basin, North Dakota and Minnesota.—Continued[mg/L, milligrams per liter; --, no data; <, less than; μg/L, micrograms per liter]

Site number Site name Sample date Sample time

Ammonia 

plus organic 

nitrogen,

unfiltered

(mg/L as N)

Ammonia,

filtered

(mg/L as N)

Ammonia,

unfiltered

(mg/L as N)

Nitrite plus 

nitrate,

filtered

(mg/L as N)

Nitrite plus 

nitrate, unfiltered (mg/L 

as N)

Total nitrogen,

filtered

(mg/L)

Total nitrogen,

unfiltered

(mg/L)

Phosphorus, 

filtered (mg/L)

461604096351900 Water-treatment plant 

inflow at Breckenridge, Minnesota

05/09/06 0800 1.4 1.49 1.39 0.021 0.02 1.66 1.45 0.05005/09/06 0805 1.4 1.47 1.5 <.020 .01 1.59 1.40 .03907/19/06 1220 1.3 1.21 1.21 <.020 .01 1.50 1.36 <.00407/19/06 1225 1.3 1.24 1.21 <.020 .02 1.57 1.34 <.004

461605096352000 Water-treatment plant 

outflow at Breckenridge, Minnesota

07/19/06 1230 .61 .539 .55 .715 .72 1.43 1.33 .32907/19/06 1235 .64 .531 .54 1.03 .70 1.73 1.34 .320

461834096333400 Wastewater-treatment plant 

effluent at Breckenridge, Minnesota

05/09/06 0840 3.6 .449 .47 .066 .07 2.90 3.68 .82805/09/06 0845 3.6 .449 .47 .066 .07 2.90 3.68 .828

461749096363800 Wastewater-treatment plant 

influent at Wahpeton, North Dakota

07/19/06 0850 31 14.1 13.7 <.020 .10 17.8 31.3 .11307/19/06 0855 33 14.3 14.4 <.020 .08 18.1 32.8 .092

462009096371600 Wastewater-treatment plant 

effluent at Wahpeton, North Dakota

06/13/06 0820 12 10.5 10.5 .063 .06 11.9 12.1 1.9606/13/06 0825 12 10.6 10.6 .062 .06 11.6 12.4 2.08

465308096545800 Water-treatment plant 

inflow at West Fargo, North Dakota

08/07/06 1305 1.6 1.27 1.21 .021 .02 1.77 1.57 .04008/07/06 1310 1.6 1.22 1.17 .024 .02 1.74 1.58 .033

465309096545700 Water-treatment plant 

outflow at West Fargo, North Dakota

08/07/06 1315 .58 .454 .47 .062 .10 .72 .68 20.208/07/06 1320 .69 .509 .50 .057 .05 .81 .74 19.4

475517097011600 Water-treatment plant 

inflow at Grand Forks, North Dakota

01/24/06 0810 .64 .085 .11 .181 .18 .88 .82 .04901/24/06 0815 .64 .100 .11 .176 .18 .90 .82 .048

475516097012400 Water-treatment plant 

outflow at Grand Forks, North Dakota

01/24/06 0820 .68 .398 .43 .238 .23 .93 .91 .95301/24/06 0825 .71 .426 .52 .234 .24 1 .95 .963

475525097003500 Water-treatment plant 

inflow at East Grand Forks, Minnesota

02/27/06 1025 .77 .070 .07 .117 .11 .88 .88 .01402/27/06 1030 .76 .072 .07 .117 .11 .88 .87 .01608/30/06 0905 .49 <.010 <.01 .032 .03 .71 .53 .00708/30/06 0910 .50 <.010 <.01 .020 .01 .68 .52 .005

475526097003400 Water-treatment plant 

outflow at East Grand Forks, Minnesota

02/27/06 1015 .61 .334 .35 .157 .16 .83 .77 1.5002/27/06 1020 .34 .129 .13 .154 .16 .56 .50 1.5108/30/06 0855 .91 .358 .37 .058 .04 .78 .95 1.4408/30/06 0900 .67 .363 .36 .049 .04 .79 .71 1.47

475828097031500 Wastewater-treatment plant 

effluent at East Grand Forks, Minnesota

08/30/06 1045 1.9 .005 .03 .053 .44 2.29 2.32 .21008/30/06 1050 2.4 .012 .02 .040 .07 2.24 2.42 .204

Number of replicate samples with complete analytical results for given 

parameter

15 15 15 15 15 15 15 15

Median relative standard deviation, in percent, for all replicate pairs 9.7 2.8 6.6 44.8 49.6 2.3 7.0 8.1
66 Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North Table 10. Analytical results and relative standard deviations for quality-assurance/quality-control replicate samples for select water- and wastewater- treatment plants within the Red River of the North Basin, North Dakota and Minnesota.—Continued [mg/L, milligrams per liter; --, no data; <, less than; μg/L, micrograms per liter] Site number Site name Sample date Sample time Phosphorus, unfiltered (mg/L) Iron, filtered (μg/L) Iron, unfiltered recoverable (μg/L) Manganese, filtered (μg/L) Manganese, unfiltered recoverable (μg/L) 461604096351900 Water-treatment plant inflow at Breckenridge, Minnesota 05/09/06 0800 0.117 -- 1,740 -- 150 05/09/06 0805 .113 -- 1,690 -- 190 07/19/06 1220 .064 827 -- 148 -- 07/19/06 1225 .064 218 -- 150 -- 461605096352000 Water-treatment plant outflow at Breckenridge, Minnesota 07/19/06 1230 .323 17 -- <10 -- 07/19/06 1235 .328 28 -- <10 -- 461834096333400 Wastewater-treatment plant effluent at Breckenridge, Minnesota 05/09/06 0840 1.08 -- 480 -- 250 05/09/06 0845 1.08 -- 169 -- 200 461749096363800 Wastewater-treatment plant influent at Wahpeton, North Dakota 07/19/06 0850 4.79 427 -- 163 -- 07/19/06 0855 5.10 402 -- 167 -- 462009096371600 Wastewater-treatment plant effluent at Wahpeton, North Dakota 06/13/06 0820 2.33 -- 860 -- 420 06/13/06 0825 2.38 -- 881 -- 408 465308096545800 Water-treatment plant inflow at West Fargo, North Dakota 08/07/06 1305 .084 <10 -- 33 -- 08/07/06 1310 .072 <10 -- 34 -- 465309096545700 Water-treatment plant outflow at West Fargo, North Dakota 08/07/06 1315 20.2 543 -- 34 -- 08/07/06 1320 19.3 528 -- 33 -- 475517097011600 Water-treatment plant inflow at Grand Forks, North Dakota 01/24/06 0810 0.056 -- 340 -- 400 01/24/06 0815 0.059 -- 320 -- 300 475516097012400 Water-treatment plant outflow at Grand Forks, North Dakota 01/24/06 0820 0.971 -- 5 -- <10 01/24/06 0825 0.969 -- 20 -- <10 475525097003500 Water-treatment plant inflow at East Grand Forks, Minnesota 02/27/06 1025 .028 -- 70 -- 20 02/27/06 1030 .026 -- 70 -- 20 08/30/06 0905 .043 15 -- <10 -- 08/30/06 0910 .043 <10 -- <10 -- 475526097003400 Water-treatment plant 

outflow at East Grand Forks, Minnesota

02/27/06 1015 1.52 -- 40 -- <1002/27/06 1020 1.50 -- 50 -- <1008/30/06 0855 3.43 19 -- <10 --08/30/06 0900 1.52 24 -- <10 --

475828097031500 Wastewater-treatment plant 

effluent at East Grand Forks, Minnesota

08/30/06 1045 .284 46 -- <10 --08/30/06 1050 .274 44 -- <10 --

Number of replicate samples with complete analytical results for given 

parameter

15 8 7 8 7

Median relative standard deviation, in percent, for all replicate pairs 17.2 77.4 16.5 2.3 17.6
References Cited 67

References Cited

Bales, J.D., and Nustad, R.A., 2005, Simulation of 

conservative-constituent transport in the Red River of 

the North Basin, North Dakota and Minnesota, 2003–04: 

U.S. Geological Survey Scientific Investigations 

Report 2005–5273, 81 p.

Dodge K.A., Hornberger, M.I., and Dyke, J.L., 2007, Waterquality, bed-sediment, and biological data (October 2005 

through September 2006) and statistical summaries of longterm data for streams in the Clark Fork Basin, Montana: 

U.S. Geological Survey Open-File Report 2007–1301, 

124 p.

Nustad, R.A., and Bales, J.D., 2006, Simulation of constituent 

transport in the Red River of the North Basin, North Dakota 

and Minnesota, during unsteady-flow conditions, 1977 

and 2003–04, U.S. Geological Survey Water-Resources 

Investigations Report 2006–5296, 65 p.

Red River Valley Water Supply Project, 2007, Current news 

and information—Red River Valley Water Supply Project 

Environmental Impact Statement: accessed September 10, 

2007, at URL http://www.rrvwsp.com/

Robinson, S.M., Lundgren, R.F., Sether, B.A., Norbeck, 

S.W., and Lambrecht, J.M., 2004, Water resources data—

North Dakota, water year 2003, v. 1, Surface water; U.S. 

Geological Survey Water-Data Report ND–03–1, 583 p.

Sando, S.K., Krabbenhoft, D.P., Johnson, K.M., 

Lundgren, R.F., and Emerson, D.G., 2007, Mercury and 

methylmercury in water and bottom sediments of wetlands 

at Lostwood National Wildlife Refuge, North Dakota, 

2003–04: U.S. Geological Survey Scientific Investigations 

Report 2007–5219, 66 p.

U.S. Geological Survey, 1978, Water resources data for North 

Dakota, water year 1977, Surface water; U.S. Geological 

Survey Water-Data Report ND–77–1, 512 p.

U.S. Geological Survey, variously dated, National field manual 

for the collection of water-quality data: U.S. Geological 

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Publishing support provided by:

Helena Publishing Service Center

For more information concerning this publication, contact:

Director, USGS North Dakota Water Science Center

821 E. Interstate Ave.

Bismarck, ND 58503

(406) 457–5900

Or visit the North Dakota Water Science Center Web site at:

http://nd.water.usgs.gov

Damschen and others—Water-Quality Data for Water- and Wastewater-Treatment Plants Along the Red River of the North—Data Series 328