U.S. Department of the Interior

U.S. Geological Survey

Prepared in cooperation with

U.S. Environmental Protection Agency

Concentrations and Loads of Cadmium, Lea

and Zinc Measured Near the Peak of the 199

Snowmelt-Runoff Hydrographs for 42 WaterQuality Stations, Coeur d’Alene River Basin, 

Idaho

Open-File Report 00–322
Concentrations and Loads of Cadmium, Lead

and Zinc Measured Near the Peak of the 1999 

Snowmelt-Runoff Hydrographs for 42 WaterQuality Stations, Coeur d’Alene River Basin, 

Idaho

By Paul F. Woods

Open-File Report 00–322

Prepared in cooperation with

U.S. Environmental Protection Agency

Boise, Idaho

2001
U.S. DEPARTMENT OF THE INTERIOR

GALE A. NORTON, Secretary

U.S. GEOLOGICAL SURVEY

Charles G. Groat, Director 

Any use of firm, trade, and brand names in this report is for

identification purposes only and does not constitute 

endorsement by the U.S. Government.

Additional information can be obtained from:

District Chief

U.S. Geological Survey

230 Collins Road

Boise, ID 83702-4520

http://idaho.usgs.gov

This report is available online in PDF for

http://idaho.usgs.gov/public/reports.html

and can be viewed using Adobe Acrobat 

Reader. The URL is:
iii

CONTENTS

Abstract .............................................................................................................................................................................

Introduction .......................................................................................................................................................................

Approach ...........................................................................................................................................................................

Hydrologic mass balance ..................................................................................................................................................

Magnitude of concentrations and loads among stations....................................................................................................

Routing of constituent loads during 1999 snowmelt-runoff event....................................................................................

References cited ................................................................................................................................................................

Appendix A. Selected water-quality analyses from the U.S. Geological Survey National Water-Quality Laboratory fo

42 water-quality stations sampled near the peak of 1999 snowmelt runoff, Coeur d’Alene River Basin, Idaho......

FIGURES

1. Map showing locations of 42 water-quality stations monitored during spring 1999 snowmelt runoff within 

the Coeur d’Alene River Basin, Idaho ...................................................................................................................

2–15. Graphs showing:

2. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at South Fork Coeur d’Alene River above Deadman Gulch near Mullan, Idaho....................................

3. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at South Fork Coeur d’Alene River at Silverton, Idaho...........................................................................

4. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at South Fork Coeur d’Alene River at Elizabeth Park near Kellogg, Idaho............................................

5. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at South Fork Coeur d’Alene River near Pinehurst, Idaho ......................................................................

6. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Canyon Creek above mouth at Wallace, Idaho....................................................................................

7. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Ninemile Creek above mouth at Wallace, Idaho .................................................................................

8. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Placer Creek at Wallace, Idaho............................................................................................................

9. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Pine Creek below Amy Gulch near Pinehurst, Idaho ..........................................................................

10. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at North Fork Coeur d’Alene River above Shoshone Creek near Prichard, Idaho..................................

11. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Prichard Creek at mouth at Prichard, Idaho.........................................................................................

12. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at North Fork Coeur d’Alene River at Enaville, Idaho............................................................................

13. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Coeur d’Alene River near Cataldo, Idaho............................................................................................

14. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Coeur d’Alene River at Rose Lake, Idaho ...........................................................................................

15. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, 

and zinc at Coeur d’Alene River near Harrison, Idaho ..........................................................................................
iv

TABLES

1. Names and identification numbers of 42 U.S. Geological Survey water-quality stations monitored during 

the 1999 snowmelt runoff, Coeur d’Alene River Basin, Idaho..............................................................................

2. Concentrations and instantaneous loads of cadmium, lead, and zinc measured during late May 1999, near the 

peak of snowmelt runoff, at 42 water-quality stations within the Coeur d’Alene River Basin, Idaho ..................

CONVERSION FACTORS AND OTHER ABBREVIATED UNITS

Multiply By To obtain

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

mile (mi) 1.609 kilometer

pound per day (lb/d) 0.4536 kilogram per day

square mile (mi2) 2.590 square kilometer

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

°F=(1.8) (°C)+32

Other abbreviated units:

DEG C. . . . . . . . . . . . . degrees Celsius

μg/L, UG/L . . . . . . . . . microgram per liter

μm . . . . . . . . . . . . . . . . micrometer

US/CM,

micromhos/cm,

microsiemens . . . . . microsiemens per centimeter

mg/L, MG/L . . . . . . . . milligram per liter

mL, ML. . . . . . . . . . . . milliliter

T/DAY . . . . . . . . . . . . ton per day
1

Concentrations and Loads of Cadmium, Lead

and Zinc Measured Near the Peak of the 1999 

Snowmelt-Runoff Hydrographs for 42 WaterQuality Stations, Coeur d’Alene River Basin, 

Idaho

By Paul F. Woods

Abstract

The Remedial Investigation/Feasibility Study 

conducted by the U.S. Environmental Protection 

Agency within the Spokane River Basin of northern Idaho and eastern Washington included extensive data-collection activities to determine the 

nature and extent of trace-element contamination 

within the basin. The U.S. Geological Survey 

designed and implemented synoptic sampling 

of the 1999 snowmelt-runoff event at 42 waterquality stations during the 1999 water year. The 

distribution of the 42 stations was as follows: 

North Fork Coeur d’Alene River and tributaries, 

4 stations; South Fork Coeur d’Alene River, 

13 stations; Canyon, Ninemile, and Pine Creeks, 

4 stations each; other tributaries to South Fork 

Coeur d’Alene River, 10 stations; and main stem 

Coeur d’Alene River, 3 stations. The objective was 

to synoptically collect discharge and water-quality 

data in order to significantly improve the estimation of trace-element loads from multiple contributing source areas during the snowmelt-runoff 

event. Discharge and water-quality data were collected near the peak discharge during late May 

1999. Each station was sampled for whole-water 

recoverable and dissolved concentrations and 

loads of cadmium, lead, and zinc.

Three general concentration levels of cadmium, lead, and zinc were noted among the 42 

stations. Dissolved cadmium concentrations were 

less than 1 microgram per liter (μg/L) at 26 stations, exceeded 10 μg/L at 1 station, and ranged 

from 1 to 10 μg/L at the remaining 15 stations. 

Whole-water recoverable cadmium concent

tions were less than 1 μg/L at 23 stations, 

exceeded 10 μg/L at 4 stations, and ranged 

to 10 μg/L at the remaining 15 stations. Dis

lead concentrations were less than 1 μg/L a

stations, exceeded 10 μg/L at 7 stations, and 

ranged from 1 to 10 μg/L at the remaining 1

tions. Whole-water recoverable lead concen

tions were less than 10 μg/L at 13 stations, 

exceeded 500 μg/L at 20 stations, and range

10 to 500 μg/L at the remaining 9 stations. 

solved zinc concentrations were less than 1

at 14 stations, exceeded 500 μg/L at 6 statio

ranged from 10 to 500 μg/L at the remainin

stations. Whole-water recoverable zinc conc

tions were less than 10 μg/L at 9 stations, ex

500 μg/L at 15 stations, and ranged from 10 

μg/L at the remaining 18 stations.

The accounting of tributary loads betw

two South Fork stations at O’Brien Gulch a

Pinehurst revealed differences between diss

and whole-water recoverable loads, as well 

differences among the three trace elements. 

tary loads accounted for an average of 29 p

(range of 27 to 31.6 percent) of the differen

whole-water recoverable loads of the three 

elements between the O’Brien Gulch and P

hurst stations. This result implies that the m

stem of the South Fork Coeur d’Alene Rive

important source of sediment-associated tra

ments under elevated streamflows. In the ca

dissolved loads of cadmium and zinc, the tri

loads accounted for about one-half (range o
2

to 55 percent) of the differences between the two 

South Fork stations. As with whole-water recoverable loads, this result indicates an important 

source of dissolved cadmium and zinc within the 

main stem. The picture is much different for dissolved lead loads: About 94 percent of the load 

difference between the O’Brien Gulch and Pinehurst stations was accounted for by loads from the 

13 tributaries. 

The Coeur d’Alene River near Harrison 

transported 924 pounds of dissolved lead per day, 

of which 82.8 pounds came from the South Fork 

and 11.7 pounds from the North Fork. Only 10.2 

percent of the load at Harrison was measured at 

the Pinehurst and Enaville stations; therefore, a 

substantial load of dissolved lead is being contributed downstream from the confluence of the North 

and South Forks. 

INTRODUCTION

Mining and ore-processing activities conducted 

over the past 100 years in the South Fork Coeur d’Alene 

River Basin have produced extensive deposits of traceelement-contaminated sediments throughout the South 

Fork Coeur d’Alene River valley and its tributaries, the 

channel and flood plain of the main stem Coeur d’Alene 

River, and the lakebed of Coeur d’Alene Lake. Snowmelt runoff and occasional floods continue to transport 

and redistribute trace-element-contaminated sediments 

throughout the 6,680-mi2 Spokane River Basin of 

northern Idaho and eastern Washington (fig. 1, back of 

report). 

The U.S. Environmental Protection Agency (EPA) 

recently initiated a Remedial Investigation/Feasibility 

Study (RI/FS) of the Spokane River Basin under the 

authority of the Comprehensive Environmental 

Response, Compensation, and Liability Act of 1980 

(CERCLA), which requires EPA to evaluate contaminant release, fate, and transport. The Remedial Investigation phase involves data collection to characterize 

site conditions, development of conceptual models, 

determination of the nature and extent of trace-element 

contamination, and risk assessment for human health 

and the environment. The development and evaluation 

of remedial action alternatives is the focus of the Feasibility Study. In March 1998, the EPA asked the U.S. 

Geological Survey (USGS) to identify hydrolog

water-quality studies the USGS might perform 

port of the RI/FS of the Spokane River Basin. T

study described in this report was conducted by 

as Task 10 (spring 1999 snowmelt-runoff synop

pling of Coeur d’Alene River Basin) under Inter

Agreement DW14957278–01–2 with EPA.

The purpose of this report is to summarize 

results of synoptic sampling at 42 water-quality 

tions in the Coeur d’Alene River Basin. Data co

during this study can be used to significantly im

the estimation of trace-element loads from mult

contributing source areas during a high-flow ev

Multiple crews were deployed among the 42 sta

so that an identical sampling design could be us

data collection at each site. Data were collected 

42 stations between May 22 and 27, during the 

1999 snowmelt-runoff event. 

APPROACH

Discharge measurements and water-quality 

ples were collected at the 42 USGS water-quali

tions listed in table 1 (back of report). The loca

the stations are illustrated in figure 1 in relation 

number or letter preceding each USGS station n

The distribution of the 42 stations was as follow

North Fork Coeur d’Alene River and tributaries

tions; South Fork Coeur d’Alene River, 13 stati

Canyon, Ninemile, and Pine Creeks, 4 stations 

other tributaries to South Fork Coeur d’Alene R

10 stations; and main stem Coeur d’Alene Rive

3 stations.

Discharge measurements were made using 

dardized USGS methods for collection of disch

data, computation of discharge, and quality assu

procedures, which are thoroughly described in 

USGS Techniques of Water-Resources Investig

Reports (Buchanan and Somers, 1968, 1969; R

1968; Carter and Davidian, 1968; Kennedy, 198

1984). The field sampling plan was to measure 

charge on the ascending limb of the hydrograph

the peak, at each station. The 42 discharge mea

ments were made between May 22 and 27. Of t

42 stations, the following 14 were equipped to c

a continuous record of discharge: 1, 2, 3, 4, 5, 8, 

14, 15, 16, 17, 18, and 19. 

Water-quality samples were collected each 

discharge measurement was made. Water tempe
3

pH, alkalinity, and specific conductance were measured 

onsite each time samples were collected. Water-quality 

samples were collected with nonmetallic samplers and 

using cross-sectional, depth-integrated procedures 

described by Edwards and Glysson (1988). The individual samples were composited in a churn splitter and 

subsamples were withdrawn for laboratory analyses. 

Samples destined for whole-water recoverable (WWR) 

analyses were withdrawn initially; samples for dissolved analyses then were withdrawn via a peristaltic 

pump and nonmetallic filtration apparatus with a filter 

pore size of 0.45 μm (Gelman capsule filters). Each 

capsule filter had been prerinsed with 1,000 mL of 

deionized water. Trace-element samples were preserved with 2 mL of Ultrex nitric acid. Sample collection and field processing were conducted using “clean” 

protocols that ensure noncontamination at the partsper-billion level, as described by Horowitz and others 

(1994). The samples were shipped in plastic coolers 

that were securely taped, custody-sealed, and logged in 

on an enclosed chain-of-custody form. The chain-ofcustody was quite short—the field personnel shipped 

the samples via air to the USGS National Water-Quality Laboratory in Denver, Colorado.

The water-quality samples were analyzed for 

WWR and dissolved concentrations of cadmium, lead, 

and zinc. Additionally, each sample was analyzed for 

dissolved concentrations of SO4, Cl, Mg, K, Si, Ca, Na, 

F, Fe, and Mn, as well as lab values of pH, alkalinity, 

and conductivity. All analyses were performed using 

low-level detection limit methods described by Fishman and Friedman (1989) and quality assurance/quality control procedures described by Pritt and Raese 

(1995). 

The water-quality data were combined with discharge data to compute instantaneous constituent loads 

near the peak of the hydrograph for each station. Instantaneous loads, in pounds per day, were computed 

by multiplying the following four variables: instantaneous discharge, in cubic feet per second; constituent 

concentration, in milligrams per liter; a conversion factor of 0.0027 to convert flow and concentration units; 

and a conversion factor of 2,000 to convert tons to 

pounds.

HYDROLOGIC MASS BALANCE

Hydrologic mass balance was evaluated to aid in 

interpretation of the trace-element loads developed for 

the 42 stations. The hydrographs for the 14 stat

with continuous records of discharge (figs. 2 thr

15, back of report) were used to identify which 

were most suitable for evaluating the routing of 

snowmelt-runoff peak. 

Within the main stem South Fork Coeur d’A

River (SFCDR), the snowmelt-runoff peak occu

May 25 (figs. 2 through 5). Canyon, Ninemile, 

and Pine Creeks (figs. 6 through 9) also peaked 

May 25. Of these eight stations, all but SFCDR 

verton (fig. 3) and Placer Creek (fig. 8) were sam

or near the peak. The relation between sample-c

tion date and runoff peak at the other stations w

the SFCDR basin cannot be accurately determin

because they lacked continuous records of disch

Beginning at SFCDR below Trowbridge Gulch

charge was 466 ft3/s on May 24. The sum of me

tributary inflows between that station and SFCD

Pinehurst was 2,800 ft3/s; thus, the combined m

discharge upstream from SFCDR near Pinehurs

3,270 ft3/s. The discharge at the latter station w

4,190 ft3/s; thus, 78 percent of the hydrologic m

balance was accounted for by measured surface

inflows. Part of the missing 22 percent was attri

to discharge-measurement error, often cited as ±

10 percent. Two other sources for the missing in

were (1) discharge not measured at the peak of 

station’s hydrograph, and (2) ground-water inflo

the main stem SFCDR.

The hydrologic mass balance at Coeur d’Al

River (CDR) near Cataldo was quite good. Disc

at the Cataldo station was 16,000 ft3/s on May 2

(fig. 13). The SFCDR near Pinehurst carried 4,1

on May 25 (fig. 5); the North Fork Coeur d’Ale

River (NFCDR) at Enaville added 11,100 ft3/s 

May 25 (fig. 12). Some discharge, about 400 ft3

lost on the CDR between the Cataldo and Rose 

stations, both of which were sampled at the runo

(figs. 13 and 14). The 400-ft3/s loss is well with

margin of discharge-measurement error. The do

stream-most station on the CDR, near Harrison

sampled about 3 days prior to the runoff peak (fi

The increase in stage was likely caused by back

conditions due to the filling of Coeur d’Alene L
4

MAGNITUDE OF CONCENTRATIONS AND 

LOADS AMONG STATIONS

The results of discharge measurements and waterquality sampling for cadmium, lead, and zinc at the 42 

stations are summarized in table 2 (back of report). 

Hydrographs were plotted for the 14 stations with a 

continuous record of discharge to clearly indicate when 

water-quality samples were collected and to list the 

concentration and instantaneous loads associated with 

each water-quality sample (figs. 2 through 15). Note 

that the sample points do not always plot on the hydrograph curve; the indicated samples are associated with 

instantaneous discharge measurements, whereas the 

hydrograph curve depicts mean daily discharge.

Dissolved and WWR concentrations, in μg/L, of 

cadmium among the 42 stations ranged, respectively, 

from 0.006 (NFCDR, Prichard) to 28.7 (Government 

Gulch) and from 0.002 (NFCDR, Prichard) to 29.3 

(Government Gulch). Dissolved and WWR concentrations, in μg/L, of lead ranged, respectively, from 0.02 

(Pine Creek above mouth of East Fork (EF) Pine 

Creek) to 35.6 (EF Ninemile Creek above mouth) and 

from 0.133 (Pine Creek above mouth of EF Pine 

Creek) to 2,000 (Canyon Creek above mouth). Dissolved and WWR concentrations, in μg/L, of zinc 

ranged, respectively, from 0.509 (Pine Creek above 

mouth of EF Pine Creek) to 1,600 (EF Ninemile Creek 

above mouth) and from 0.79 (Little North Fork above 

mouth) to 1,900 (EF Ninemile Creek above mouth). 

The wide range in concentrations shown in table 2 

reflects three general concentration levels in cadmium, 

lead, and zinc among the stations. Dissolved cadmium 

concentrations were less than 1 μg/L at 26 stations, 

exceeded 10 μg/L at 1 station, and ranged from 1 to 

10 μg/L at the remaining 15 stations. WWR cadmium 

concentrations were less than 1 μg/L at 23 stations, 

exceeded 10 μg/L at 4 stations, and ranged from 1 to 

10 μg/L at the remaining 15 stations. Dissolved lead 

concentrations were less than 1 μg/L at 22 stations, 

exceeded 10 μg/L at 7 stations, and ranged from 1 to 

10 μg/L at the remaining 13 stations. WWR lead concentrations were less than 10 μg/L at 13 stations, 

exceeded 500 μg/L at 20 stations, and ranged from 10 

to 500 μg/L at the remaining 9 stations. Dissolved zinc 

concentrations were less than 10 μg/L at 14 stations, 

exceeded 500 μg/L at 6 stations, and ranged from 10 to 

500 μg/L at the remaining 22 stations. WWR zinc 

concentrations were less than 10 μg/L at 9 stations, 

exceeded 500 μg/L at 15 stations, and ranged fr

to 500 μg/L at the remaining 18 stations.

The constituent load carried at each station 

affected by its constituent concentration and the 

charge at the time the water-quality sample was 

obtained. The foregoing discussion of table 2 ha

the wide variations in cadmium, lead, and zinc 

trations. Discharges listed in table 2 also varied 

from 1 ft3/s (Terror Gulch) to 16,000 ft3/s (CDR 

Cataldo). The smallest loads were carried at sta

with a combination of low constituent concentr

and low discharge. The largest loads were not n

ily carried at those stations with the largest con

concentrations because discharge at those statio

not always large. Dissolved and (or) WWR load

lb/d, of cadmium ranged, respectively, from les

0.01 (Little North Fork above mouth, Ninemile 

above mouth of EF Ninemile Creek, Placer Cre

Lake Creek, Twomile Creek, Terror Gulch, Mo

ery Creek, Elk Creek, EF Pine Creek, Pine Cree

mouth) to 41.9 (CDR at Rose Lake) and from le

0.01 (Little North Fork above mouth, Ninemile 

above mouth of EF Ninemile Creek, Lake Cree

Twomile Creek, Terror Gulch, Montgomery Cre

Pine Creek) to 181 (CDR near Cataldo). Dissolv

WWR loads, in lb/d, of lead ranged, respectivel

less than 0.01 (Twomile Creek, Terror Gulch, M

gomery Creek) to 924 (CDR near Harrison) and 

less than 0.01 (Twomile Creek, Terror Gulch) to 

(CDR near Cataldo). Dissolved and WWR load

lb/d, of zinc ranged, respectively, from 0.04 (Tw

Creek) to 6,530 (CDR at Rose Lake) and from 

(Twomile Creek) to 18,100 (CDR near Cataldo

Canyon Creek was sampled at four stations 

Gem, Woodland Park, Wallace) on May 24. Dis

increased about 75 percent between Burke and 

lace; however, substantial increases in constitue

centration caused load increases of several orde

magnitude downstream. For example, the WWR 

load at Burke was 5.6 lb/d, whereas above the m

Wallace, the load had increased to 4,150 lb/d, a 

fold increase due almost entirely to increases in 

centration from 4.68 to 2,000 μg/L. The pattern 

other dissolved and WWR constituents transpor

Canyon Creek was similar, but of lesser magnit

Ninemile Creek was also sampled at four st

however, the three stations upstream from the m

(EF Ninemile Creek, EF Ninemile Creek above 

and Ninemile Creek above mouth of EF Ninem

Creek) were sampled on May 23, whereas the st
5

the mouth (Ninemile Creek at Wallace) was sampled 

on May 26. Because of the differences in sampling 

dates, a comparison of loads among the four stations is 

less instructive than the one just done for Canyon 

Creek. Regardless, the trace-element loads contributed 

by Ninemile Creek above mouth of EF Ninemile Creek 

are of little consequence compared with those contributed by the two stations on the EF Ninemile Creek. 

For Pine Creek, the two upstream stations (EF 

Pine Creek above Gilbert Creek and Pine Creek above 

mouth of EF Pine Creek) were sampled on May 23; the 

two stations near the town of Pinehurst (Pine Creek 

below Amy Gulch and Pine Creek above mouth) were 

sampled on May 25. The two upstream stations contributed very small loads of the three trace elements. 

Discharge, constituent concentrations, and loads at the 

two downstream stations were similar on May 25, indicating the absence of significant load sources between 

the two stations.

ROUTING OF CONSTITUENT LOADS 

DURING 1999 SNOWMELT-RUNOFF 

EVENT

The majority of the water-quality sampling was 

conducted at the 13 stations on the SFCDR and 13 of 

its tributaries. The ensuing discussion uses table 2 and 

figures 2 through 15 to describe the effect of tributary 

constituent loads on the loads transported in the 

SFCDR from the O’Brien Gulch station (12413030) to 

the Pinehurst station (12413470), as well as the relative 

effects of the North and South Forks’ constituent loads 

on those measured at CDR near Harrison (12413860).

The load of 0.04 lb/d of dissolved cadmium measured at the O’Brien Gulch station increased to 36.2 lb/d 

at the Pinehurst station. The three largest tributary 

loads, in lb/d, were delivered by Canyon Creek (12.1), 

by Ninemile Creek (4.28), and by Government Gulch 

(2.37); the other 10 tributaries contributed only 1.19 lb/d. 

The combined load of 19.9 lb/d from the 13 tributaries 

accounted for 55 percent of the increase in dissolved 

cadmium load between the stations at O’Brien Gulch 

and Pinehurst. Much of the unaccounted load between 

the two stations was likely contributed by inflow of 

cadmium-bearing ground water. About 94 percent of 

the 38.5 lb/d of dissolved cadmium load measured at 

the CDR near Harrison was contributed by the South 

Fork. 

The load of 0.11 lb/d of WWR cadmium m

at the O’Brien Gulch station increased to 125 lb

the Pinehurst station. Canyon, Ninemile, and G

ment Gulch Creeks again were the three largest 

tary loaders, adding 22.4, 6.15, and 2.42 lb/d, re

tively. The 13 tributaries added 33.6 lb/d and acc

for 27 percent of the increase in load between th

tions at O’Brien Gulch and Pinehurst. The unacc

load was likely contributed by dissolved cadmiu

ground-water inflow, as well as by the erosion a

transport of sediment-associated cadmium conta

the channel and banks of the South Fork. About 

cent of the 127 lb/d of WWR cadmium load me

at the CDR near Harrison was from the South F

The load of 0.32 lb/d of dissolved lead mea

at the O’Brien Gulch station increased to 82.8 l

the Pinehurst station. The 13 tributaries contribu

77.2 lb/d, or 93.6 percent, of the additional load

yon, Ninemile, and Pine Creeks added the large

tary loads—54.5, 15.1, and 5.78 lb/d, respective

The CDR near Harrison transported 924 lb/d of 

solved lead, 82.8 lb/d from the South Fork and 

lb/d from the North Fork. Only 10.2 percent of t

at Harrison was measured at the Pinehurst and E

stations; therefore, a substantial load of dissolve

is being contributed downstream from the confl

of the North and South Forks. This unaccounted 

could be from some combination of the followin

sources: (1) ground water from the South Fork m

dissolved lead to the CDR if the reach between 

hurst and Cataldo gains ground water; (2) lead 

desorbed from sediments within the water colum

the North Fork (small WWR lead concentration

μg/L) mixes with the South Fork (large WWR l

concentration, 3.66 μg/L); and (3) dissolved co

tions are operationally defined as the filtrate pas

0.45-μm filter pore size; thus, colloidal iron-lea

plexes formed in the South Fork would be inclu

such filtrates and would inflate the dissolved co

tions.

The load of 9.31 lb/d of WWR lead measur

the O’Brien Gulch station was augmented by a 

bined load of 5,000 lb/d from the 13 tributaries

dissolved lead, Canyon, Ninemile, and Pine Cre

were the largest tributary loaders for WWR lead

ing 4,150, 534, and 227 lb/d, respectively. How

the loads from the 13 tributaries only accounted 

28.6 percent of the difference in loads between 

O’Brien Gulch and Pinehurst stations; the latter 

ported 17,500 lb/d. Sources for the unaccounted 
6

are likely the erosion and transport of sediment-associated lead contained in the channel and banks of the 

South Fork and authegenic conversion of dissolved 

lead to WWR lead via adsorption to iron. The WWR 

lead load of 17,500 lb/d from the South Fork was the 

dominant contribution to the 19,800 lb/d in transport at 

the Harrison station. 

The load of 4.13 lb/d of dissolved zinc measured at 

the O’Brien Gulch station increased to 5,140 lb/d at the 

Pinehurst station. Canyon Creek added 1,390 lb/d; the 

other 12 tributaries added another 1,040 lb/d. The tributary loads accounted for 47.3 percent of the increase 

between the O’Brien Gulch and Pinehurst stations. 

Much of the unaccounted load between the two stations 

was likely from inflow of zinc-bearing ground water. 

The dissolved zinc load of 6,000 lb/d at the Harrison 

station was contributed mainly by the South Fork.

The load of 21.4 lb/d of WWR zinc measured at 

the O’Brien Gulch station increased to 15,500 lb/d at 

the Pinehurst station. Canyon, Ninemile, and Pine 

Creeks added the largest tributary loads; Canyon Creek 

alone added 2,990 lb/d. However, the 4,900 lb/d added 

by the 13 tributaries accounted for only 31.6 percent of 

the load increase. The unaccounted load was likely 

contributed by dissolved zinc from ground-water 

inflow, as well as by the erosion and transport of sediment-associated zinc contained in the channel and 

banks of the South Fork. The South Fork contributed 

more than 95 percent of the WWR load of 16,100 lb/d 

of zinc at the Harrison station.

The accounting of tributary loads between the two 

South Fork stations at O’Brien Gulch and Pinehurst 

revealed differences between dissolved and WWR 

loads, as well as differences among the three trace elements. Tributary loads accounted for an average of 29 

percent (range of 27 to 31.6 percent) of the differences 

in WWR loads of the three trace elements between the 

O’Brien Gulch and Pinehurst stations. This result 

implies that the main stem SFCDR is an important 

source of sediment-associated trace elements under 

elevated streamflows. In the case of dissolved loads of 

cadmium and zinc, the tributary loads accounted for 

about one-half (range of 47.3 to 55 percent) of the differences between the two South Fork stations. As with 

WWR loads, this result indicates an important source 

of dissolved cadmium and zinc within the main stem. 

The picture is much different for dissolved lead loads: 

About 94 percent of the load difference between the 

O’Brien Gulch and Pinehurst stations was accounted 

for by loads from the 13 tributaries. 

REFERENCES CITED

Buchanan, T.J., and Somers, W.P., 1968, Stage 

surement at gaging stations: U.S. Geologi

vey Techniques of Water-Resources Inves

tions, book 3, chap. A7, 28 p.

——— 1969, Discharge measurements at gagin

tions: U.S. Geological Survey Techniques 

Water-Resources Investigations, book 3, c

A8, 65 p.

Carter, R.W., and Davidian, J., 1968, General p

dure for gaging streams: U.S. Geological 

Techniques of Water-Resources Investigat

book 3, chap. A6, 13 p.

Edwards, T.K., and Glysson, G.D., 1988, Field 

ods for measurement of fluvial sediment: 

Geological Survey Open-File Report 86–5

118 p.

Fishman, M.J., and Friedman, L.C., eds., 1989, 

ods for determination of inorganic substan

water and fluvial sediments: U.S. Geologi

Survey Techniques of Water-Resources In

tions, book 5, chap. A1, 545 p.

Horowitz, A.J., Demas, C.R., Fitzgerald, K.K., 

T.L., and Rickert, D.A., 1994, U.S. Geolo

Survey protocol for the collection and pro

of surface-water samples for the subseque

determination of inorganic constituents in 

water: U.S. Geological Survey Open-File 

94–539, 57 p.

Kennedy, E.J., 1983, Computation of continuou

records of streamflow: U.S. Geological Su

Techniques of Water-Resources Investigat

book 3, chap. A13, 53 p.

——— 1984, Discharge ratings at gaging statio

U.S. Geological Survey Techniques of Wa

Resources Investigations, book 3, chap. A

59 p.

Pritt, J.W., and Raese, J.W., eds., 1995, Quality 

ance/quality control manual, National Wa

Quality Laboratory: U.S. Geological Surv

Open-File Report 95–443, 35 p.

Riggs, H.C., 1968, Some statistical tools in hyd

U.S. Geological Survey Techniques of Wa

Resources Investigations, book 4, chap. A
Figures 1-15
Blank page 8
vey digital data, 1:100,000, 1999 

30', 

ng.

U%

$

$$

$

$

$

$ $ $ $ $$ $ $ $ $ $$ $$ $ $ $$ $ $ $$ $ $ $$$$ $ $ $

Coeur d'Alene

Kootenai Shoshone

Coeur d'Alene Lake

North Fork

Coeur d'Alene Indian Reservation

South Fork

St. Joe River

Coeur d'Alene River

Bunker Hill Superfund Site

X

D

L M K B C A P N E QF RG S T I H U V W J 1 7 6 5 2 9 3 4

14

15

16

10

11 12 13 17 18 19 8

Placer Cr.

Montgomery Cr.

Ninemile Cr.

Prichard Cr.

Pine CreekCanyon Cr.

Beaver Cr.

$ Gaging station and number or letter Explanation

o o 116

116

0 5 10 15 Kilometers

0 5 10 15 Miles

45'

00'

Figure 1. Locations of 42 water-quality stations monitored during spring 1999 snowmelt runoff within the Coeur d'Alene River Basin, Idaho.

Idaho
USGS Station 12413040 - 

h Fork Coeur d'Alene River above Deadman Gulch near Mullan, Idaho

5/20/99 5/25/99 5/30/99

lity sample collected Concentration, in μg/L Cd, WWR = .11

Cd, dissolved = .03Pb, WWR= 12.6Pb, dissolved = .31Zn, WWR = 20Zn, dissolved = 3.49 Load, in pounds/dayCd,WWR = .22Cd, dissolved = .07Pb, WWR = 24.9Pb, dissolved = .61Zn, WWR = 40Zn, dissolved = 6.9

Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at South Fork Coeur d'Alene River above Deadman Gulch near Mullan, Idaho.(USGS, U.S. Geological Survey; μg/L, micrograms per liter; WWR, whole-water recoverable)

Estimated
USGS Station 12413150 - South Fork Coeur d'Alene River at Silverton, Idaho

5/20/99 5/25/99 5/30/99

er-quality sample collected

 Concentration, in μg/LCd, WWR = 4.12Cd, dissolved = 1.32Pb, WWR = 539Pb, dissolved = 5.44Zn, WWR = 520Zn, dissolved = 204

 Load, in pounds/day

Cd, WWR = 34.9Cd, dissolved = 11.2Pb, WWR = 4,570Pb, dissolved = 46.1Zn, WWR = 4,410Zn, dissolved = 1,730

ak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc 

 Fork Coeur d'Alene River at Silverton, Idaho.

U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable)
GS Station 12413210 - South Fork Coeur d'Alene River at Elizabeth Park near Kellogg, Idaho

5/20/99 5/25/99 5/30/99

uality sample collected Concentration, in μg/L

Cd, WWR = 4.23Cd, dissolved = 1.38Pb, WWR = 336Pb, dissolved = 3.1Zn, WWR = 598Zn, dissolved = 184

Load, in pounds/day

Cd, WWR = 56.2Cd, dissolved = 18.3Pb, WWR = 4,460Pb, dissolved = 41.2Zn, WWR = 7,940Zn, dissolved = 2,440

Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

t South Fork Coeur d'Alene River at Elizabeth Park near Kellogg, Idaho.

USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable)
USGS Station 12413470 - South Fork Coeur d'Alene River near Pinehurst, Idaho

5/20/99 5/25/99 5/30/99

ality sample collected Concentration, in μg/L

Cd, WWR = 5.51Cd, dissolved = 1.6Pb, WWR = 774Pb, dissolved = 3.66Zn, WWR = 687Zn, dissolved = 227

 Load, in pounds/day

Cd, WWR = 125Cd, dissolved = 36.2Pb, WWR = 17,500Pb, dissolved = 82.8Zn, WWR = 15,500Zn, dissolved = 5,140

5. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at South Fork Coeur d'Alene River near Pinehurst, Idaho.(USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable)
USGS Station 12413125 - Canyon Creek above mouth at Wallace, Idaho

5/20/99 5/25/99 5/30/99

lity sample collected Concentration, in μg/L

Cd, WWR = 10.8Cd, dissolved = 5.83Pb, WWR = 2,000Pb, dissolved = 26.3Zn, WWR = 1,440Zn, dissolved = 671

 Load, in pounds/day

Cd, WWR = 22.4Cd, dissolved = 12.1Pb, WWR = 4,150Pb, dissolved = 54.5Zn, WWR = 2,990Zn, dissolved = 1,390

ear-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

Canyon Creek above mouth at Wallace, Idaho.

SGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable) 
USGS Station 12413130 - Ninemile Creek above mouth at Wallace, Idaho

5/20/99 5/25/99 5/30/99

ality sample collected

 Concentration, in μg/LCd, WWR = 9.26Cd, dissolved = 6.45Pb, WWR = 804Pb, dissolved = 22.8Zn, WWR = 1480Zn, dissolved = 981

Load, in pounds/day

Cd, WWR = 6.15Cd, dissolved = 4.28Pb, WWR = 534Pb, dissolved = 15.1Zn, WWR = 983Zn, dissolved = 652

ar-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

Ninemile Creek above mouth at Wallace, Idaho.

SGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable)
USGS Station 12413140 - Placer Creek at Wallace, Idaho

5/20/99 5/25/99 5/30/99

ality sample collected

 Concentration, in μg/L

Cd, WWR = .04Cd, dissolved = .01Pb, WWR = 4.11Pb, dissolved = .04Zn, WWR = 8.89Zn, dissolved = .74

Load, in pounds/day

Cd, WWR = .05Cd, dissolved = .01Pb, WWR = 4.86Pb, dissolved = .04Zn, WWR = 10.5Zn, dissolved = .89

Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at Placer Creek at Wallace, Idaho.

USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable) 
USGS Station 12413445 - Pine Creek below Amy Gulch near Pinehurst, Idaho

5/20/99 5/25/99 5/30/99

ality sample collected

 Concentration, in μg/L

Cd, WWR = .27Cd, dissolved = .15Pb, WWR = 31.2Pb, dissolved = .78Zn, WWR = 76.1Zn, dissolved = 39.2

Load, in pounds/day

Cd, WWR = 1.95Cd, dissolved = 1.06Pb, WWR = 226Pb, dissolved = 5.64Zn, WWR = 551Zn, dissolved = 284

ar-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

Pine Creek below Amy Gulch near Pinehurst, Idaho.

GS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable) 
USGS Station 12411000 - 

North Fork Coeur d'Alene River above Shoshone Creek near Prichard, Idaho

5/20/99 5/25/99 5/30/99

ality sample collected Concentration, in μg/L Cd, WWR = .002

Cd, dissolved = .01Pb, WWR = .66Pb, dissolved = .02Zn, WWR = 1.63Zn, dissolved = .63

Load, in pounds/day

Cd, WWR = .05Cd, dissolved = .15Pb, WWR = 16.8Pb, dissolved = .54Zn, WWR = 41.8Zn, dissolved = 16.1

Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at North Fork Coeur d'Alene River above Shoshone Creek near Prichard, Idaho.(USGS, U.S. Geological Survey; μg/L, micrograms per liter; WWR, whole-water recoverable) 
USGS Station 12411935 - Prichard Creek at mouth at Prichard, Idaho

5/20/99 5/25/99 5/30/99

ality sample collected

 Concentration, in μg/L

Cd, WWR = .22Cd, dissolved = .14Pb, WWR = 25.3Pb, dissolved = .56Zn, WWR = 45Zn, dissolved = 25.9

Load, in pounds/day

Cd, WWR = 1.39Cd, dissolved = .87Pb, WWR = 160Pb, dissolved = 3.56Zn, WWR = 284Zn, dissolved = 164

Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at Prichard Creek at mouth at Prichard, Idaho.(USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable) 
USGS Station 12413000 - North Fork Coeur d'Alene River at Enaville, Idaho

5/20/99 5/25/99 5/30/99

r-quality sample collected

 Concentration, in μg/LCd, WWR = .11Cd, dissolved = .03Pb, WWR = 11.3Pb, dissolved = .2Zn, WWR = 18.8Zn, dissolved = 4.6 Load, in pounds/dayCd, WWR = 6.41Cd, dissolved = 1.86Pb, WWR = 674Pb, dissolved = 11.7Zn, WWR = 1,130Zn, dissolved = 276

2. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at North Fork Coeur d'Alene River at Enaville, Idaho. (USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable)
USGS Station 12413500 - Coeur d'Alene River near Cataldo, ldaho

5/20/99 5/25/99 5/30/99

r-quality sample collected Concentration, in μg/L Cd, WWR = 2.1

Cd, dissolved = .46Pb, WWR = 233Pb, dissolved = 3.17Zn, WWR = 209Zn, dissolved = 67.2

Load, in pounds/day

Cd, WWR = 181Cd, dissolved = 40.2Pb, WWR = 20,100Pb, dissolved = 274Zn, WWR = 18,100Zn, dissolved = 5,810

13. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at Coeur d'Alene River near Cataldo, Idaho.(USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable) 
USGS Station 12413810 - Coeur d'Alene River at Rose Lake, Idaho

5/20/99 5/25/99 5/30/99

ty sample collected Concentration, in μg/L Cd, WWR = 1.7

Cd, dissolved = .5Pb, WWR = 231Pb, dissolved = 4.6Zn, WWR = 192Zn, dissolved = 77.5

Load, in pounds/day

Cd, WWR = 143Cd, dissolved = 41.9Pb, WWR = 19,500Pb, dissolved = 388Zn, WWR = 16,200Zn, dissolved = 6,530

Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at Coeur d'Alene River at Rose Lake, Idaho.(USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable) 
USGS Station 12413860 - Coeur d'Alene River near Harrison, Idaho

5/20/99 5/25/99 5/30/99

lity sample collected Concentration, in μg/L

Cd, WWR = 1.9Cd, dissolved = .58Pb, WWR = 296Pb, dissolved = 13.8Zn, WWR = 241Zn, dissolved = 89.6

Load, in pounds/day

Cd, WWR = 127Cd, dissolved = 38.5Pb, WWR = 19,800Pb, dissolved = 924Zn, WWR = 16,100Zn, dissolved = 6,000

5. Near-peak portion of 1999 snowmelt-runoff hydrograph with concentrations and loads of cadmium, lead, and zinc

at Coeur d'Alene River near Harrison, Idaho.(USGS, U.S. Geological Survey; 

μg/L, micrograms per liter; WWR, whole-water recoverable)

Table 1

Number Name

A 12413030 SFCDR below O'Brien Gulch near Larson

1 12413040 SFCDR above Deadman Gulch near Mullan

B 12413103 SFCDR above Slaughterhouse Gulch at Mullan

C 12413104 SFCDR below Trowbridge Gulch near Wallace

D 12413131 SFCDR above Placer Creek at Wallace

2 12413150 SFCDR at Silverton

E 12413169 SFCDR below Twomile Creek near Osburn

F 12413175 SFCDR at Terror Gulch at Osburn

G 12413179 SFCDR near Big Creek

3 12413210 SFCDR at Elizabeth Park near Kellogg

H 12413250 SFCDR at Bunker Avenue Bridge at Kellogg

I 12413300 SFCDR at Smelterville

4 12413470 SFCDR near Pinehurst

7 12413118 Canyon Creek near Burke

K 12413120 Canyon Creek at Gem

6 12413123 Canyon Creek at Woodland Park

5 12413125 Canyon Creek above mouth at Wallace

L 124131267 East Fork Ninemile Creek near Blackcloud

9 12413127 East Fork Ninemile Creek above mouth near Blackcloud

M 12413126 Ninemile Creek above mouth of East Fork Ninemile Creek 

near Blackcloud

8 12413130 Ninemile Creek above mouth at Wallace

U 12413360 East Fork Pine Creek above Gilbert Creek near Pinehurst

V 12413440 Pine Creek above mouth of East Fork Pine Creek at Pine

13 12413445 Pine Creek below Amy Gulch near Pinehurst

W 12413460 Pine Creek above mouth near Pinehurst

Canyon Creek

Ninemile Creek

Pine Creek

Number or letter U.S. Geological Survey water-quality station

of station on

figure 1

South Fork Coeur d'Alene River (SFCDR), main stem

Table 1. Names and identification numbers of 42 U.S. Geological Survey water-quality

 stations monitored during the 1999 snowmelt runoff, Coeur d'Alene River Basin, Idaho

27
Number Name

Number or letter U.S. Geological Survey water-quality station

of station on

figure 1

J 12413025 Little North Fork at Hale Fish Hatchery above mouth

10 12413140 Placer Creek at Wallace

N 12413151 Lake Creek above mouth near Silverton

P 12413168 Twomile Creek above mouth at Osburn

Q 12413174 Terror Gulch Creek above mouth near Osburn

R 12413185 Big Creek above mouth near Big Creek

11 12413190 Moon Creek above mouth at Elk Creek

S 12413204 Montgomery Creek above mouth near Elizabeth Park

T 12413209 Elk Creek above mouth at Elizabeth Park

12 12413290 Government Gulch near mouth at Smelterville

14 12411000 NFCDR above Shoshone Creek near Prichard

16 12413000 NFCDR at Enaville

15 12411935 Prichard Creek at mouth at Prichard

X 12411950 Beaver Creek above Carpenter Gulch near Prichard

17 12413500 CDR near Cataldo

18 12413810 CDR at Rose Lake

19 12413860 CDR near Harrison

North Fork Coeur d'Alene River (NFCDR)

Tributaries to North Fork Coeur d'Alene River

Mainstem Coeur d'Alene River (CDR)

Other tributaries to South Fork Coeur d'Alene River

28
Table 2

Load 

WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2

R above 

ne Creek

Prichard

5/24/99 4750 0.051 0.002 0.154 0.006 16.8 0.656 0.539 0.021 41.8 1.63 16.1 0.63

rd Creek 

at Prichard 5/24/99 1170 1.39 0.22 0.872 0.138 160 25.3 3.56 0.564 284 45 164 25.9

reek above 

ter Gulch

Prichard

5/24/99 141 0.239 0.314 0.186 0.244 3.36 4.42 0.101 0.132 52.8 69.3 45.2 59.4

CDR 

naville 5/25/99 11100 6.41 0.107 1.86 0.031 674 11.3 11.7 0.195 1130 18.8 276 4.60

rth Fork at 

atchery above

outh

5/22/99 46.8 0.002 0.0070.003 0.013 0.051 0.201 0.015 0.06 0.200 0.79 0.339 1.34

R below 

n Gulch

Larson

5/25/99 154 0.114 0.1370.040 0.048 9.31 11.2 0.319 0.384 21.4 25.7 4.13 4.97

ove Deadman 

ulch

Mullan

5/25/99 366 0.2170.11 0.065 0.033 24.9 12.6 0.611 0.309 39.5 20 6.90 3.49

R above 

terhouse 

at Mullan

5/24/99 466 0.775 0.308 0.113 0.045 208 82.7 2.35 0.933 196 78 17.9 7.13

w Trowbridge

ulch 

Wallace

5/24/99 466 2.20 0.876 0.609 0.242 213 84.6 1.87 0.742 316 126 114 45.4

n Creek

ear

urke

5/24/99 221 0.961 0.805 0.038 0.032 5.59 4.68 0.243 0.204 16.3 13.75.41 4.53

n Creek

at

em

5/24/99 310 6.61 3.95 4.29 2.56 798 477 23.1 13.8 805 481 569 340

n Creek

at

and Park

5/24/99 329 12.2 6.84 7.46 4.20 2520 1420 44.4 25 1670 940 897 505

 and instantaneous loads of cadmium, lead, and zinc measured during late May 1999, near the peak of snowmelt runoff, at 42 water-quality stations 

e River Basin, Idaho

rk Coeur d'Alene River; SFCDR, South Fork Coeur d'Alene River; CDR, Coeur d'Alene River; ns, not sampled; 

 μg/L, micrograms per liter; ft3/s, cubic feet per second; WWR, whole-water recoverable; DISS, dissolved; 

ous discharge; USGS, U.S. Geological Survey]

Zinc Concentration (μg/L)

and Instantaneous Load (pounds/day)

Lead Concentration (μg/L)

and Instantaneous Load (pounds/day)

Cadmium Concentration (μg/L)

and Instantaneous Load (pounds/day)

Inst.

Q

(ft3/s)

Sample

Date 

n Name
Load 

WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2

Zinc Concentration (μg/L)

and Instantaneous Load (pounds/day)

Lead Concentration (μg/L)

and Instantaneous Load (pounds/day)

Cadmium Concentration (μg/L)

and Instantaneous Load (pounds/day)

Inst.

Q

(ft3/s)

Sample

Date 

n Name

n Creek

e mouth 

allace

5/24/99 384 22.4 10.8 12.1 5.83 4150 2000 54.5 26.3 2990 1440 1390 671

t Fork 

le Creek 

ackcloud

5/23/99 37.6 2.13 10.5 1.66 8.19 126 619 5.16 25.4 351 1730 280 1380

k Ninemile

e mouth near 

kcloud

5/23/99 45.2 2.81 11.5 2.42 9.91 109 445 8.68 35.6 464 1900 391 1600

le Creek

mouth of 

k Ninemile 

r Blackcloud

5/23/99 5.58 0.005 0.165 0.005 0.18 0.077 2.55 0.039 1.30 0.672 22.3 0.669 22.2

le Creek

e mouth 

allace

5/26/99 123 6.15 9.26 4.28 6.45 534 804 15.1 22.8 983 1480 652 981

R above 

r Creek

allace

5/24/99 1160 25.5 4.0714.8 2.373010 480 54.9 8.76 3500 558 2000 319

r Creek

at

llace

5/24/99 219 0.053 0.045 0.008 0.007 4.86 4.11 0.043 0.036 10.5 8.89 0.876 0.741

CDR

at 

erton

5/26/99 1570 34.9 4.12 11.2 1.32 4570 539 46.1 5.44 4410 520 1730 204

 Creek

e mouth 

Silverton

5/22/99 30.3 0.005 0.029 0.006 0.038 0.728 4.45 0.042 0.257 1.02 6.22 1.65 10.1

e Creek

e mouth 

sburn

5/22/99 4.77 0.0003 0.013 0.001 0.024 0.008 0.314 0.001 0.035 0.039 1.53 0.039 1.51

low Twomile 

eek

Osburn

5/26/99 1850 38.73.8715.8 1.58 5000 500 44.3 4.43 6280 629 2230 223

r Gulch 

ove mouth 

Osburn

5/22/99 1 0.0001 0.016 0.0004 0.077 0.003 0.467 0.0005 0.084 0.127 23.6 0.122 22.5

DR at

r Gulch

sburn

5/24/99 1510 31.73.89 15.3 1.88 3890 477 45.6 5.60 4360 534 2050 251

R above

eek near 

Creek

5/24/99 1720 54.0 5.81 18.4 1.98 7930 854 60.7 6.54 6430 692 2440 263
Load 

WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2

Zinc Concentration (μg/L)

and Instantaneous Load (pounds/day)

Lead Concentration (μg/L)

and Instantaneous Load (pounds/day)

Cadmium Concentration (μg/L)

and Instantaneous Load (pounds/day)

Inst.

Q

(ft3/s)

Sample

Date 

n Name

Creek

outh near 

Creek

5/25/99 604 0.424 0.13 0.033 0.01 91.1 27.9 1.31 0.401 228 70 4.70 1.44

 Creek 

mouth at 

Creek

5/23/99 8.69 0.015 0.3270.015 0.326 0.023 0.494 0.029 0.61 3.24 69 2.85 60.8

mery Creek

outh near

eth Park

5/22/99 7.89 0.001 0.035 0.001 0.025 0.0170.4070.003 0.065 0.109 2.55 0.118 2.78

Creek

e mouth

beth Park

5/23/99 20 0.0170.156 0.009 0.079 1.56 14.4 0.020 0.19 0.923 8.56 0.350 3.25

DR at 

eth Park

Kellogg

5/25/99 2460 56.2 4.23 18.3 1.38 4460 336 41.2 3.10 7940 598 2440 184

at Bunker 

ge at Kellogg 5/25/99 2650 63.0 4.40 20.9 1.46 10400 724 65.5 4.58 9600 671 2680 187

ment Gulch

mouth at

terville

5/23/99 15.3 2.42 29.3 2.37 28.7 1.88 22.8 0.321 3.89 75.4 913 72.0 872

CDR

at

terville

5/25/99 2610 86.0 6.1 24.4 1.73 12700 900 66.2 4.69 12000 850 3560 253

e Creek

bert Creek

inehurst

5/23/99 63.3 0.002 0.006 0.005 0.015 0.181 0.529 0.050 0.145 1.19 3.49 1.34 3.93

eek above

 East Fork

ek at Pine

5/23/99 412 0.0070.003 0.029 0.013 0.296 0.133 0.044 0.02 na <1 1.13 0.509

 Creek

my Gulch

inehurst

5/25/99 1340 1.95 0.269 1.06 0.147 226 31.2 5.64 0.780 551 76.1 284 39.2

 Creek 

e mouth

inehurst

5/25/99 1380 2.15 0.288 1.11 0.149 227 30 5.78 0.776 606 81.3 300 40.3

CDR

ear

ehurst

5/25/99 4190 125 5.51 36.2 1.60 17500 774 82.8 3.66 15500 687 5140 227

DR

ear

taldo

5/25/99 16000 181 2.10 40.2 0.465 20100 233 274 3.17 18100 209 5810 67.2

DR

at

e Lake

5/26/99 15600 143 1.70 41.9 0.497 19500 231 388 4.60 16200 192 6530 77.5
Load 

WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2 Load WWR WWR1 Load DISS DISS2

Zinc Concentration (μg/L)

and Instantaneous Load (pounds/day)

Lead Concentration (μg/L)

and Instantaneous Load (pounds/day)

Cadmium Concentration (μg/L)

and Instantaneous Load (pounds/day)

Inst.

Q

(ft3/s)

Sample

Date 

n Name

DR

ear

rison

5/27/99 12400 127 1.90 38.5 0.575 19800 296 924 13.8 16100 241 6000 90

performed on water, suspended-sediment mixture at U.S. Geological Survey National Water-Quality Laboratory.

5-micrometer capsule filter.
Appendix A. Selected water-quality analyses from the U.S. Geologic

Survey National Water-Quality Laboratory for 42 water-quality statio

sampled near the peak of 1999 snowmelt runoff, Coeur d’Alene Rive

Basin, Idaho

37

SPOKANE RIVER BASIN

12411000 NORTH FORK COEUR D’ ALENE RIVER ABOVE SHOSHONE CREEK NEAR PRICHARD, ID

WATER QUALITY RECORDS

PERIOD OF RECORD.--October 1992 to September 1994, October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARD- MAGNEINST. CIFIC WHOLE NESS CALCIUM SIUM, SODIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DIS- DIS- DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED SOLVED SOLVE

DATE TIME PER ANCE ARD AIR WATER AS (MG/L (MG/L (MG/

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA) AS MG) AS NA

(00061) (00095) (00400) (00020) (00010) (00900) (00915) (00925) (0093

OCT

20... 0930 90 6 7.8 3.0 5.5 27 6.1 2.8 --

NOV

18... 1230 155 55 7.8 6.0 5.0 25 5.5 2.7 --

DEC

10... 0745 304 47 7.3 -2.0 1.5 22 4.9 2.3 --

JAN

27... 0845 569 42 7.4 -3.5 1.0 20 4.4 2.1 --

FEB

08... 0950 408 44 7.0 -2.0 1.0 22 4.9 2.3 --

MAR

08... 1115 545 45 7.5 4.0 2.0 21 4.7 2.2 --

APR

15... 0805 1160 41 7.0 -2.0 3.0 18 4.2 2.0 --

MAY

10... 1000 1930 36 6.8 12.0 4.5 17 3.8 1.8 .9

24... 1200 4750 29 7.1 26.0 6.0 13 3.0 1.3 .8

JUN

01... 1540 2700 33 7.7 19.0 8.0 14 3.2 1.5 .8

JUL

13... 1115 295 51 7.4 25.0 16.5 23 5.2 2.4 .9

AUG

12... 1200 161 60 7.8 23.5 19.0 27 6.3 2.9 1.1

SEP

08... 0930 111 58 7.3 8.5 19.0 27 6.1 2.9 1.0

ANC NITRO- NITRO- NITRO- PHOS

WATER CHLO- FLUO- SILICA, GEN, GEN, GEN,AM- PHORU

UNFLTRD SULFATE RIDE, RIDE, DIS- NO2+NO3 AMMONIA MONIA + PHOS- ORTHO

FET DIS- DIS- DIS- SOLVED DIS- DIS- ORGANIC PHORUS DISFIELD SOLVED SOLVED SOLVED (MG/L SOLVED SOLVED TOTAL TOTAL SOLVE

DATE MG/L AS (MG/L (MG/L (MG/L AS (MG/L (MG/L (MG/L (MG/L (MG/

CACO3 AS SO4) AS CL) AS F) SIO2) AS N) AS N) AS N) AS P) AS P

(00410) (00945) (00940) (00950) (00955) (00631) (00608) (00625) (00665) (0067

OCT

20... -- -- -- -- -- .005 <.002 <.10 .002 .00

NOV

18... -- -- -- -- -- .034 <.002 <.10 .005 .00

DEC

10... -- -- -- -- -- .021 .004 <.10 .005 .00

JAN

27... -- -- -- -- -- .012 .004 E.06 .005 .00

FEB

08... -- -- -- -- -- .010 <.002 <.10 .005 .00

MAR

08... -- -- -- -- -- <.005 <.002 <.10 .004 .00

APR

15... -- -- -- -- -- <.005 .003 E.05 .007 .00

MAY

10... -- 1.1 .12 <.10 9.4 .005 .002 <.10 .005 .00

24... 12 1.0 .18 <.10 8.8 -- -- -- -- --

JUN

01... 17 <.10 .20 <.10 8.7 .019 .002 .12 .009 .00

JUL

13... 27 .87 .12 <.10 9.5 .005 <.002 E.05 <.004 .00

AUG

12... 30 .95 .11 <.10 9.5 <.005 .003 <.10 .007 .00

SEP

08... 29 1.4 E.14 <.10 9.2 <.005 .008 E.10 .004 .00

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

20... 0930 <1 <1 <1 <1 <20 <10

NOV

18... 1230 <1 <1 <1 <1 <20 <10

DEC

10... 0745 <1 <1 <1 <1 <20 <10

JAN

27... 0845 <1 <1 <1 <1 <20 <10

FEB

08... 0950 <1 <1 <1 <1 <20 <10

MAR

08... 1115 <1 <1 <1 <1 <20 <40

APR

15... 0805 <1 <1 <1 <1 <20 <40

MAY

10... 1000 <1 <.1 <1 <.1 2 <1.0 

24... 1200 <1 <.1 <1 .66 <1 1.6 

JUN

01... 1540 <1 <.1 <1 <.1 1 <1.0 

JUL

13... 1115 <1 <.1 <1 <.1 1 <1.0 

AUG

12... 1200 <1 <.1 <1 <.1 <1 <1.0 

SEP

08... 0930 <1 <.1 <1 <.1 <1 <1.0 
38

SPOKANE RIVER BASIN

12411935 PRICHARD CREEK AT MOUTH AT PRICHARD, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

20... 1200 17 37 7.0 6.0 11.0 13 3.4

NOV

18... 0950 52 39 6.8 4.0 8.0 14 3.8

DEC

10... 1045 72 36 7.2 -.5 5.0 13 3.4

29... 1235 113 34 7.0 3.0 4.0 12 3.1

FEB

25... 1315 243 32 6.8 3.5 3.5 12 3.1

MAR

24... 1150 803 28 7.1 17.0 5.8 9 2.4

APR

21... 0750 984 24 7.0 3.0 4.6 8 2.1

MAY

04... 0845 520 25 7.0 5.0 5.3 8 2.1

24... 1430 1170 20 7.1 27.0 10.2 6 1.7

JUN

15... 0915 659 22 7.2 24.0 9.0 7 1.9

JUL

13... 1310 124 27 6.8 24.5 14.5 10 2.5

AUG

12... 1015 46 33 6.6 14.5 17.0 12 3.1

SEP

08... 0755 28 34 6.8 7.0 11.0 12 3.3

ANC

MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

 OCT

20... 1.1 -- -- -- -- -- --

NOV

18... 1.2 -- -- -- -- -- --

DEC

10... 1.1 -- -- -- -- -- --

29... 1.1 -- -- -- -- -- --

FEB

25... 1.0 -- -- -- -- -- --

MAR

24... .77 -- -- -- -- -- --

APR

21... .67 -- -- -- -- -- --

MAY

04... .68 1.2 -- 3.3 .22 <.10 10

24... .52 1.0 6 2.7 .11 <.10 7.0

JUN

15... .57 1.0 9 2.2 .12 <.10 8.8

JUL

13... .79 1.3 11 2.5 .10 <.10 11

AUG

12... .96 1.5 12 2.9 .13 <.10 12

SEP

08... 1.0 1.5 13 3.7 <.29 <.10 12

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

 OCT

20... 1200 <1 <1 <1 <1 62 --

NOV

18... 0950 <1 <1 -- <1 25 20

DEC

10... 1045 <1 <1 <1 <1 28 --

29... 1235 <1 <1 <1 <1 34 --

FEB

25... 1315 <1 <1 <1 2 25 43.2 

MAR

24... 1150 <1 <1 <1 3 31 E36.2 

APR

21... 0750 <1 <1 <1 7 34 41.4 

MAY

04... 0845 <1 .15 <1 1.3 30 30.5 

24... 1430 <1 .22 <1 25.3 26 45.0 

JUN

15... 0915 <1 .14 <1 3.5 30 30.7 

JUL

13... 1310 <1 .13 <1 .66 25 25.4 

AUG

12... 1015 <1 .12 <1 .39 24 22.8 

SEP

08... 0755 <1 .13 <1 .32 27 24.1 

E Positive detection, but below detection limit. 
39

SPOKANE RIVER BASIN

12413000 NORTH FORK COEUR D’ALENE RIVER AT ENAVILLE, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1972-73, 1975-1980, 1990, 1992 to current year.

PERIOD OF DAILY RECORD.--

WATER TEMPERATURE: May 20 to September 30, 1998, May to September 1999 (discontinued). 

INSTRUMENTATION.--Temperature recording data logger.

EXTREMES FOR PERIOD OF DAILY RECORD.--

WATER TEMPERATURE: Maximum 21.9 oC July 27, 1998.

EXTREMES FOR CURRENT PERIOD.--

WATER TEMPERATURE: Maximum 20.2 oC Aug. 3. 

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH OXYGEN, COLICHARGE, SPE- WATER DIS- FORM, 

INST. CIFIC WHOLE SOLVED FECAL,

CUBIC CON- FIELD TEMPER- TEMPER- TUR- OXYGEN, (PER- 0.7

FEET DUCT- (STAND- ATURE ATURE BID- DIS- CENT UM-MF 

DATE TIME PER ANCE ARD AIR WATER ITY SOLVED SATUR- (COLS./

SECOND (US/CM) UNITS) (DEG C) (DEG C) (NTU) (MG/L) ATION) 100 ML)

(00061) (00095) (00400) (00020) (00010) (00076) (00300) (00301) (31625)

OCT

20... 1530 254 50 7.5 12.5 10.5 -- -- -- --

NOV

17... 0900 592 53 7.0 3.5 6.0 -- -- -- --

DEC

15... 0800 1940 40 7.2 .0 3.2 -- -- -- --

JAN

27... 1130 1840 40 7.3 -2.0 1.5 -- -- -- --

FEB

08... 1255 1540 41 7.2 9.0 3.0 -- -- -- --

MAR

08... 1445 1940 41 7.4 5.0 3.0 -- -- -- --

APR

13... 1030 2740 44 7.3 10.5 3.9 1.2 12.2 101 <1

20... 1120 9680 30 7.2 13.0 5.0 -- -- -- --

MAY

06... 1010 5180 35 7.2 11.0 4.9 2.0 12.0 103 K1

27... 1430 8450 27 7.3 24.5 8.5 -- -- -- --

JUN

02... 1015 5810 32 7.3 19.0 8.1 1.9 -- -- K1

JUL

13... 0740 902 45 7.5 15.5 13.9 1.9 8.9 94 K7

AUG

10... 0745 504 51 7.2 17.0 15.3 .36 8.3 90 K5

SEP

08... 1245 306 53 7.8 21.5 13.0 .22 9.6 100 K1

STREP- ANC ANC ANC

TOCOCCI HARD- MAGNE- POTAS- WATER UNFLTRD WATER 

FECAL, NESS CALCIUM SIUM, SODIUM, SIUM, UNFLTRD CARB UNFLTRD

KF AGAR TOTAL DIS- DIS- DIS- DIS- FET FET FET

(COLS. (MG/L SOLVED SOLVED SOLVED SOLVED FIELD FIELD FIELD 

DATE PER AS (MG/L (MG/L (MG/L SODIUM (MG/L MG/L AS MG/L AS MG/L AS

100 ML) CACO3) AS CA) AS MG) AS NA) PERCENT AS K) HCO3 CO3 CACO3 

(31673) (00900) (00915) (00925) (00930) (00932) (00935) (00440) (00445) (00410)

OCT

20... -- 23 5.6 2.2 -- -- -- -- -- --

NOV

17... -- 23 5.7 2.2 -- -- -- -- -- --

DEC

15... -- 19 4.5 1.8 -- -- -- -- -- --

JAN

27... -- 18 4.3 1.7 -- -- -- -- -- --

FEB

08... -- 19 4.6 1.8 -- -- -- -- -- --

MAR

08... -- 18 4.3 1.7 -- -- -- -- -- --

APR

13... K4 17 4.2 1.7 -- -- -- -- -- --

20... -- 13 3.1 1.2 -- -- -- -- -- --

MAY

06... K1 14 3.4 1.4 .93 -- -- 19 0 16

27... -- 12 2.9 1.1 -- -- -- -- -- --

JUN

02... K1 13 3.1 1.2 .85 -- -- 17 0 14

JUL

13... 28 19 4.7 1.8 1.0 -- -- 25 0 21

AUG

10... K9 22 5.3 2.0 1.1 -- -- 29 0 24

SEP

08... K5 23 5.5 2.1 1.2 10 .44 29 0 24

K Results based on counts outside ideal colony range.
40

SPOKANE RIVER BASIN

12413000 NORTH FORK COEUR D’ALENE RIVER AT ENAVILLE, ID--Continued

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

NITRO- NITRO- NITRO- PHOSCHLO- FLUO- SILICA, GEN, GEN, GEN,AM- PHORUS 

SULFATE RIDE, RIDE, DIS- NO2+NO3 AMMONIA MONIA + PHOS- ORTHO,

DIS- DIS- DIS- SOLVED DIS- DIS- ORGANIC PHORUS DISSOLVED SOLVED SOLVED (MG/L SOLVED SOLVED TOTAL TOTAL SOLVED 

DATE (MG/L (MG/L (MG/L AS (MG/L (MG/L (MG/L (MG/L (MG/L

AS SO4) AS CL) AS F) SIO2) AS N) AS N) AS N) AS P) AS P)

(00945) (00940) (00950) (00955) (00631) (00608) (00625) (00665) (00671)

OCT

20... -- -- -- -- .013 <.002 <.10 .002 .001 

NOV

17... -- -- -- -- .059 <.002 <.10 .004 .001 

DEC

15... -- -- -- -- .042 <.002 .10 .007 .003 

JAN

27... -- -- -- -- .024 .004 E.06 .005 .003 

FEB

08... -- -- -- -- .013 <.002 <.10 .004 .003 

MAR

08... -- -- -- -- .005 <.002 <.10 <.004 .001 

APR

13... -- -- -- -- .005 .004 <.10 .005 .002 

20... -- -- -- -- -- -- -- -- --

MAY

06... 1.5 .19 <.10 9.7 .008 .002 E.05 .008 .003 

27... -- -- -- -- -- -- -- -- --

JUN

02... 1.6 .38 <.10 8.7 .017 .003 .13 .007 .003 

JUL

13... 1.2 .14 <.10 10 <.005 <.002 <.10 .004 .002 

AUG

10... 1.3 .18 <.10 10 <.005 <.002 <.10 <.004 .001 

SEP

08... 1.7 E.15 <.10 10 .005 .007 .11 <.004 .003 

SEDICADMIUM LEAD, ZINC, MENT, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL SEDI- DISDIS- UNFLTRD DIS- RECOV- DIS- RECOV- MENT, CHARGE,

SOLVED TOTAL SOLVED ERABLE SOLVED ERABLE SUS- SUSDATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L PENDED PENDED

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN) (MG/L) (T/DAY)

(01025) (01027) (01049) (01051) (01090) (01092) (80154) (80155)

OCT

20... 1530 <1 <1 <1 <1 <20 <10 -- --

NOV

17... 0900 <1 <1 <1 <1 E8 <10 -- --

DEC

15... 0800 <1 <1 <1 <1 <20 <10 -- --

JAN

27... 1130 <1 <1 <1 <1 <20 <10 -- --

FEB

08... 1255 <1 <1 <1 <1 <20 <10 -- --

MAR

08... 1445 <1 <1 <1 <1 <20 <40 -- --

APR

13... 1030 <1 <1 <1 <1 <20 <40 2 15

20... 1120 <1 <1 <1 3 <20 <40 37 967

MAY

06... 1010 <1 <.1 <1 .78 4 6.9 3 42

27... 1430 <1 <.1 <1 2.2 4 -- -- --

JUN

02... 1015 <1 <.1 <1 .67 4 4.4 5 78

JUL

13... 0740 <1 <.1 <1 .17 5 4.8 <1 --

AUG

10... 0745 <1 <.1 <1 .14 3 3.2 22 30

SEP

08... 1245 <1 <.1 <1 .10 3 2.4 <1 --

E Positive detection, but below stated detection limit.
41

SPOKANE RIVER BASIN

12413040 SOUTH FORK COEUR D’ALENE RIVER ABOVE DEADMAN GULCH NEAR MULLAN, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIU

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915

OCT

22... 1220 9.7 144 7.6 9.5 7.0 58 16

NOV

16... 1530 76 149 7.7 2.0 5.4 56 16

DEC

14... 1610 20 144 7.7 -1.0 2.5 52 14

JAN

20... 0855 22 132 7.5 1.0 2.0 52 14

MAR

22... 1115 56 115 7.7 6.5 2.0 42 11

APR

19... 0845 115 79 7.6 4.0 3.5 32 7.9

MAY

05... 0730 87 79 7.3 3.5 3.5 32 8.2

22... 1710 134 52 7.4 16.5 8.5 20 5.4

25... 1100 366 31 7.3 24.0 6.4 12 3.3

27... 1000 236 35 7.3 21.0 6.0 14 3.8

31... 1415 193 37 7.4 10.5 5.5 15 4.0

JUN

16... 0755 230 32 7.2 19.5 5.9 12 3.4

JUL

12... 1425 64 49 7.3 30.0 11.8 21 5.5

AUG

12... 0730 22 95 7.5 13.5 10.5 39 11

31... 0730 16 115 8.0 12.0 9.5 50 13

ANC

MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

22... 4.6 -- -- -- -- -- --

NOV

16... 4.1 -- -- -- -- -- --

DEC

14... 4.1 -- -- -- -- -- --

JAN

20... 4.1 -- -- -- -- -- --

MAR

22... 3.7 -- -- -- -- -- --

APR

19... 2.9 -- -- -- -- -- --

MAY

05... 2.8 2.2 -- 6.3 3.3 <.10 8.8

22... 1.7 -- 15 -- -- -- --

25... 1.0 1.0 11 2.0 .77 <.10 7.0

27... 1.2 -- -- -- -- -- --

31... 1.3 -- -- -- -- -- --

JUN

16... .96 1.0 12 2.6 .54 <.10 7.1

JUL

12... 1.7 1.3 20 3.1 .92 <.10 8.0

AUG

12... 3.2 2.0 37 8.1 1.6 <.10 9.6

31... 4.0 2.2 41 11 1.8 <.10 9.8

CADMIUM LEAD, ZINC, CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

22... 1220 <1 <1 <1 <1 <20 <10

NOV

16... 1530 <1 <1 2 10 59 60

DEC

14... 1610 <1 <1 <1 7 24 30

JAN

20... 0855 <1 <1 1 4 22 20

MAR

22... 1115 <1 <1 <1 24 <20 52.4 

APR

19... 0845 <1 <1 <1 5 E9 E32.6 

MAY

05... 0730 <1 <.1 <1 2.3 8 9.2 

22... 1710 <1 <.1 <1 3.5 4 9.2 

25... 1100 <1 .11 <1 12.6 3 20.0 

27... 1000 <1 <.1 <1 4.7 4 9.7 

31... 1415 <1 <.1 <1 2.4 4 6.3 

JUN

16... 0755 <1 <.1 <1 2.9 4 6.2 

JUL

12... 1425 <1 <.1 <1 1.8 3 4.4 

AUG

12... 0730 <1 <.1 <1 1.4 3 6.7 

31... 0730 <1 <.1 <1 1.3 8 8.2 

E Positive detection, but below detection limit.
42

SPOKANE RIVER BASIN

12413118 CANYON CREEK NEAR BURKE, ID

LOCATION.--Lat 47o31’32”, long 115o48’00”, in NE1/4 sec. 10, T. 48N., R. 5E, (unsurveyed, from USGS topographic map)

Shoshone County, Burke Quadrangle, Hydrologic Unit 17010302, 0.5 mi upstream from Gorge Gulch and 0.8 mi northeast 

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIU

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915

OCT

27... 0745 5.6 30 7.1 3.0 4.5 12 3.3

NOV

18... 0735 6.1 30 7.0 .5 2.5 12 3.2

DEC

15... 0810 9.9 28 7.0 -3.0 1.7 12 3.1

JAN

20... 1105 9.9 28 7.3 .0 .5 11 2.8

MAR

22... 1720 24 24 7.1 1.0 3.0 9 2.4

APR

21... 0815 70 20 6.3 2.5 3.0 7 1.9

MAY

05... 1000 46 20 6.7 5.0 3.0 7 1.8

24... 0830 221 15 7.4 11.5 3.2 5 1.3

JUN

15... 1510 292 13 6.9 27.5 5.5 4 1.2

JUL

08... 0745 103 16 7.3 7.5 4.8 6 1.6

AUG

05... 0720 22 25 7.2 15.5 9.0 10 2.7

30... 0955 12 27 7.1 14.0 9.0 12 3.1

ANC MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

27... 1.0 -- -- -- -- -- --

NOV

18... .99 -- -- -- -- -- --

DEC

15... .97 -- -- -- -- -- --

JAN

20... .88 -- -- -- -- -- --

MAR

22... .78 -- -- -- -- -- --

APR

21... .58 -- -- -- -- -- --

MAY

05... .55 .92 -- 1.6 .12 <.10 7.5

24... .36 .70 5 1.3 .25 <.10 6.4

JUN

15... .34 .58 7 .87 <.10 <.10 5.8

JUL

08... .47 .65 7 .63 <.10 <.10 6.0

AUG

05... .79 .86 12 .80 <.10 <.10 7.2

30... .95 .97 13 1.3 <.29 <.10 7.4

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

27... 0745 <1 <1 <1 <1 <20 10

NOV

18... 0735 <1 <1 <1 <1 E11 <10

DEC

15... 0810 <1 <1 <1 <1 20 20

JAN

20... 1105 <1 <1 <1 <1 E16 10

MAR

22... 1720 <1 <1 <1 <1 E8 <40

APR

21... 0815 <1 <1 1 1 E11 <40

MAY

05... 1000 <1 <.1 <1 .18 8 8.3 

24... 0830 <1 .81 <1 4.7 5 13.7 

JUN

15... 1510 <1 <.1 <1 4.2 3 4.3 

JUL

08... 0745 <1 <.1 <1 1.1 5 4.6 

AUG

05... 0720 <1 <.1 <1 .62 5 5.5 

30... 0955 <1 <.1 <1 .24 5 4.6 

E Positive detection, but below stated detection limit.
43

SPOKANE RIVER BASIN

12413123 CANYON CREEK AT WOODLAND PARK, ID

LOCATION.--Lat 47o29’19”, long 115o53’22”, in SE1/4SE1/4SW1/4 sec. 24, T. 48N., R. 4E., Shoshone County, 

Hydrologic Unit 17010302, at bridge crossing 1.9 mi upstream from South Fork Coeur D’Alene River.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

27... 0940 12 107 7.5 8.5 6.0 44 12

NOV

18... 0930 14 108 7.3 3.0 4.5 45 13

DEC

15... 1005 19 103 7.3 .5 2.6 41 12

JAN

20... 1400 23 90 7.0 7.0 3.0 34 9.6

MAR

23... 0730 88 77 6.9 1.0 3.0 26 7.4

APR

21... 1030 122 48 6.4 10.0 5.0 17 4.8

MAY

05... 1020 77 47 7.0 15.0 5.0 19 5.3

24... 1340 329 29 7.0 30.0 9.0 10 2.8

JUN

15... 1300 345 24 7.1 27.5 11.0 9 2.5

JUL

08... 0920 117 36 7.0 10.0 7.5 14 4.1

AUG

05... 0950 31 73 7.4 20.5 13.0 31 8.6

30... 1150 24 88 7.3 22.0 15.0 39 11

ANC

MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

27... 3.2 -- -- -- -- -- --

NOV

18... 3.2 -- -- -- -- -- --

DEC

15... 2.9 -- -- -- -- -- --

JAN

20... 2.4 -- -- -- -- -- --

MAR

23... 1.9 -- -- -- -- -- --

APR

21... 1.2 -- -- -- -- -- --

MAY

05... 1.4 1.2 -- 6.9 .22 <.10 8.6

24... .70 .75 9 3.9 .17 <.10 8.9

JUN

15... .62 .64 11 2.7 .14 <.10 6.4

JUL

08... 1.0 .76 14 3.1 .14 <.10 6.4

AUG

05... 2.2 1.2 27 6.9 .23 <.10 7.8

30... 2.8 1.3 34 9.7 E.20 <.10 8.2

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

27... 0940 13 -- 30 46 1700 1600

NOV

18... 0930 16 16 22 120 2300 2400

DEC

15... 1005 19 20 22 56 2800 2800

JAN

20... 1400 16 17 24 50 2200 2300

MAR

23... 0730 20 21 37 130 2900 2840

APR

21... 1030 9 10 24 96 1300 1300

MAY

05... 1020 6 6.0 19 56.6 956 921

24... 1340 4 6.8 25 1420 505 940

JUN

15... 1300 2 2.6 19 105 307 317

JUL

08... 0920 3 3.4 16 28.1 457 436

AUG

05... 0950 7 7.4 21 61.4 944 865

30... 1150 9 9.0 27 45.9 1130 1030

E Positive detection, but below stated detection limit.
44

SPOKANE RIVER BASIN

12413125 CANYON CREEK ABOVE MOUTH AT WALLACE, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--July 1972 to October 1972, October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIU

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915

OCT

26... 1315 13 127 7.8 12.5 10.0 49 14

NOV

18... 1200 16 133 7.3 3.5 5.0 57 16

DEC

15... 1225 25 130 7.6 2.0 2.8 48 13

28... 1415 27 128 6.7 3.5 .0 47 13

MAR

23... 0845 96 91 7.1 6.0 3.5 31 8.7

APR

19... 1100 138 60 7.2 8.0 5.5 22 6.2

MAY

05... 1255 84 56 7.1 10.0 7.0 21 5.9

24... 1630 384 31 7.1 26.5 9.5 11 3.0

27... 0900 261 28 7.0 9.0 5.5 11 3.0

JUN

02... 1030 241 31 6.0 10.0 7.0 11 3.2

15... 0915 263 31 6.9 27.0 10.0 10 2.8

JUL

08... 1045 107 39 7.0 18.5 9.9 16 4.6

AUG

05... 1240 34 83 7.4 25.0 17.5 35 9.9

30... 1325 22 103 7.3 19.0 17.0 44 13

ANC MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

26... 3.5 -- -- -- -- -- --

NOV

18... 4.1 -- -- -- -- -- --

DEC

15... 3.4 -- -- -- -- -- --

28... 3.4 -- -- -- -- -- --

MAR

23... 2.2 -- -- -- -- -- --

APR

19... 1.6 -- -- -- -- -- --

MAY

05... 1.5 1.2 -- 9.0 .27 <.10 8.4

24... .75 .77 10 5.1 .49 <.10 6.8

27... .75 -- -- -- -- -- --

JUN

02... .81 -- -- -- -- -- --

15... .69 .66 8 3.3 .18 <.10 6.2

JUL

08... 1.2 .81 16 4.3 .16 <.10 6.4

AUG

05... 2.5 1.3 28 11 .36 <.10 8.1

30... 3.2 1.4 35 15 E.25 <.10 8.5

CADMIUM LEAD, ZINC, CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

26... 1315 21 18 31 43 2400 2300

NOV

18... 1200 31 -- 32 49 4300 3900

DEC

15... 1225 28 31 29 52 4300 4400

28... 1415 30 32 31 230 4400 4200

MAR

23... 0845 26 26 40 120 3600 3560

APR

19... 1100 14 15 22 370 1800 1890

MAY

05... 1255 9 9.4 22 55.1 1290 1280

24... 1630 6 10.8 26 2000 671 1440

27... 0900 5 5.1 17 251 604 663

JUN

02... 1030 4 4.6 23 98.9 571 568

15... 0915 4 4.1 18 151 451 466

JUL

08... 1045 5 5.4 20 33.2 702 664

AUG

05... 1240 12 12.6 31 58.9 1480 1390

30... 1325 15 15.0 37 50.5 1790 1780

E Positive detection, but below detection limit.
45

SPOKANE RIVER BASIN

12413127 EAST FORK NINEMILE CREEK ABOVE MOUTH NEAR BLACKCLOUD, ID

LOCATION.--Lat 47o33’47”, long 115o53’33”, in NW1/4NE1/4NW1/4, sec. 13, T. 48N., R. 4E., Shoshone County, Hydrologi

Unit 17010302, at county road crossing 0.3 mi upstream from Ninemile Creek, and 0.8 mi northeast of Blackcloud.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

27... 1420 12.1 112 7.1 9.5 8.0 31 10

NOV

19... 0717 1.9 150 8.4 1.0 2.5 42 14

DEC

10... 0955 2.0 169 6.8 .5 .0 39 13

JAN

21... 1015 3.3 115 6.8 .0 1.0 31 10

MAR

22... 1305 17 101 7.0 9.0 4.5 27 8.6

APR

20... 1440 30 85 6.3 8.5 6.0 22 6.9

MAY

05... 1200 22 71 7.0 7.5 5.0 17 5.5

23... 0940 45 37 6.8 14.5 5.7 11 3.3

JUN

15... 1205 44 28 7.1 28.0 10.5 8 2.6

JUL

07... 1210 16 44 7.1 19.5 10.4 12 3.8

AUG

04... 1350 6.2 64 6.3 30.0 19.0 19 6.2

SEP

01... 0710 3.0 81 6.5 5.0 6.5 22 7.2

ANC

MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

27... 1.4 -- -- -- -- -- --

NOV

19... 1.9 -- -- -- -- -- --

DEC

10... 1.8 -- -- -- -- -- --

JAN

21... 1.4 -- -- -- -- -- --

MAR

22... 1.3 -- -- -- -- -- --

APR

20... 1.0 -- -- -- -- -- --

MAY

05... .86 1.8 -- 20 .89 <.10 14

23... .55 1.5 6 9.0 .28 <.10 12

JUN

15... .40 1.2 8 5.4 .19 <.10 9.7

JUL

07... .57 1.5 9 8.5 .18 <.10 11

AUG

04... .87 1.9 8 17 .21 <.10 13

SEP

01... 1.0 2.1 13 23 E.17 <.10 14

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

27... 1420 40 42 93 110 7200 7300 

NOV

19... 0717 67 --l 110 140 13000 12000 

DEC

10... 0955 83 80 140 200 14000 15000 

JAN

21... 1015 52 49 110 140 9300 9500 

MAR

22... 1305 44 43 85 220 6900 6840 

APR

20... 1440 38 39 58 400 6200 6230 

MAY

05... 1200 27 27.5 46 85.2 4540 4460 

23... 0940 10 11.5 33 445 1600 1900 

JUN

15... 1205 6 5.7 31 93.4 867 853 

JUL

07... 1210 11 10.7 37 50.4 1660 1820 

AUG

04... 1350 20 20.8 59 82.5 2980 2910 

SEP

01... 0710 28 29.2 74 95.5 4820 5060 

E Positive detection, but below stated detection limit.
46

SPOKANE RIVER BASIN

12413130 NINEMILE CREEK ABOVE MOUTH AT WALLACE, ID 

WATER-QUALITY RECORDS

PERIOD OF RECORD.--July 1972 to October 1972, October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

27... 1135 3.2 157 7.5 14.5 7.0 61 17

NOV

19... 0855 4.0 182 7.3 2.5 3.5 75 21

DEC

10... 0805 6.0 201 7.8 -1.0 1.0 74 20

JAN

21... 1125 13 158 7.4 3.5 3.0 71 19

MAR

22... 1405 78 130 7.5 11.0 6.0 56 15

APR

19... 1300 80 117 7.6 8.0 5.5 48 13

MAY

05... 1400 34 109 7.5 10.0 6.0 43 12

23... 1355 61 63 7.3 29.0 12.0 24 6.7

26... 0845 123 42 6.8 10.5 5.2 16 4.4

27... 0745 110 43 7.1 5.0 5.0 16 4.5

31... 1230 55 48 7.3 12.0 7.3 17 4.7

JUN

15... 1415 49 44 7.3 29.5 15.2 16 4.5

JUL

07... 1425 17 74 7.2 24.0 14.0 27 7.8

AUG

04... 1540 8.6 109 7.1 28.0 22.0 44 13

SEP

01... 1000 5.0 129 7.1 10.0 7.5 53 15

ANC MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

27... 4.3 -- -- -- -- -- --

NOV

19... 5.1 -- -- -- -- -- --

DEC

10... 5.5 -- -- -- -- -- --

JAN

21... 5.4 -- -- -- -- -- --

MAR

22... 4.7 -- -- -- -- -- --

APR

19... 3.9 -- -- -- -- -- --

MAY

05... 3.5 1.6 -- 16 .88 <.10 13

23... 1.8 -- 18 -- -- -- --

26... 1.1 1.2 13 6.7 .26 <.10 10

27... 1.1 -- -- -- -- -- --

31... 1.2 -- -- -- -- -- --

JUN

15... 1.1 1.2 13 6.4 .24 <.10 10

JUL

07... 1.9 1.5 24 10 .34 <.10 12

AUG

04... 3.1 1.9 32 19 .61 <.10 14

SEP

01... 3.7 2.0 39 23 .37 <.10 14

CADMIUM LEAD, ZINC, CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

27... 1135 28 31 28 46 4900 --

NOV

19... 0855 39 -- 36 50 7500 7100

DEC

10... 0805 31 39 36 68 6600 7000

JAN

21... 1125 22 21 44 54 3800 3800

MAR

22... 1405 12 14 23 330 2000 2300

APR

19... 1300 14 17 13 260 2400 2580

MAY

05... 1400 16 16.8 26 52.2 2690 2580

23... 1355 8 9.3 23 223 1240 1300

26... 0845 6 9.3 23 804 981 1480

27... 0745 6 7.3 23 267 1020 1100

31... 1230 6 6.5 22 104 974 946

JUN

15... 1415 6 6.0 25 80.5 864 870

JUL

07... 1425 10 10.6 29 45.6 1570 1760

AUG

04... 1540 17 17.7 33 48.2 2280 2250

SEP

01... 1000 21 -- 29 -- 3570 --
47

SPOKANE RIVER BASIN

12413140 PLACER CREEK AT WALLACE, ID 

WATER-QUALITY RECORDS

PERIOD OF RECORD.--May 1980, October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

26... 1535 4.1 101 7.8 6.5 7.0 48 14

NOV

17... 1422 12 97 7.8 6.0 5.5 45 13

DEC

14... 1230 21 80 7.8 4.0 3.4 37 11

JAN

21... 0825 35 82 7.4 .0 3.0 39 11

FEB

25... 0835 55 71 7.6 2.0 3.5 34 10

MAR

22... 1545 103 69 7.7 4.0 3.5 34 10

APR

21... 1300 163 59 6.9 11.0 4.5 29 8.7

MAY

04... 1530 106 60 7.5 4.0 4.5 30 8.9

24... 1000 219 47 7.8 12.0 6.2 21 6.4

JUN

16... 0715 182 40 7.1 14.5 5.5 19 5.8

JUL

08... 1300 33 63 7.6 19.5 10.0 30 9.3

AUG

05... 1420 13 82 7.6 21.5 14.0 40 12

31... 0920 8.2 89 7.9 7.0 9.5 43 13

ANC MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

26... 3.1 -- -- -- -- -- --

NOV

17... 2.9 -- -- -- -- -- --

DEC

14... 2.3 -- -- -- -- -- --

JAN

21... 2.5 -- -- -- -- -- --

FEB

25... 2.2 -- -- -- -- -- --

MAR

22... 2.2 -- -- -- -- -- --

APR

21... 1.8 -- -- -- -- -- --

MAY

04... 1.8 .96 -- 1.6 .16 <.10 8.1

24... 1.2 .74 22 1.3 .17 <.10 7.1

JUN

16... 1.1 .65 19 .93 <.29 <.10 6.9

JUL

08... 1.8 .86 23 .83 .13 <.10 8.0

AUG

05... 2.4 1.1 41 1.3 .28 <.10 9.0

31... 2.6 1.1 46 1.7 E.21 <.10 9.3

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

26... 1535 <1 <1 1 1 <20 <10

NOV

17... 1422 <1 <1 <1 <1 <20 <10

DEC

14... 1230 <1 <1 <1 <1 <20 <10

JAN

21... 0825 <1 <1 <1 <1 <20 <10

FEB

25... 0835 <1 <1 <1 -- <20 <40

MAR

22... 1545 <1 <1 <1 <1 <20 <40

APR

21... 1300 <1 <1 <1 <1 <20 --

MAY

04... 1530 <1 -- <1 -- 2 --

24... 1000 <1 -- <1 4.1 <1 8.9

JUN

16... 0715 <1 -- <1 .89 1 --

JUL

08... 1300 <1 -- <1 1.1 1 --

AUG

05... 1420 <1 -- <1 .78 <1 --

31... 0920 <1 -- <1 .58 3 --
48

SPOKANE RIVER BASIN

12413150 SOUTH FORK COEUR D’ALENE RIVER AT SILVERTON, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

22... 1540 43 174 7.9 14.0 9.5 69 19

NOV

17... 0925 68 175 7.1 5.5 5.0 69 19

DEC

10... 1210 81 184 7.4 2.0 3.5 64 17

29... 1300 129 164 7.9 5.0 2.0 59 16

MAR

24... 0830 525 122 7.3 11.0 3.8 46 13

APR

19... 1515 731 85 7.6 12.0 5.0 48 13

MAY

05... 1445 479 85 7.6 10.0 6.0 37 9.9

24... 1030 1220 52 7.2 26.5 6.5 22 6.1

26... 08l00 1570 44 6.8 10.5 4.5 18 5.0

27... 0945 1230 51 7.1 14.0 5.0 21 5.8

JUN

01... 0845 1040 53 7.5 12.5 5.5 23 6.2

16... 0950 1180 43 7.4 25.0 8.0 18 5.0

JUL

15... 0800 282 75 7.9 12.0 9.0 32 8.7

AUG

05... 1540 133 112 7.7 27.0 18.0 48 13

SEP

01... 0840 77 140 7.2 7.0 8.0 61 17

ANC

MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

22... 5.5 -- -- -- -- -- --

NOV

17... 5.2 -- -- -- -- -- --

DEC

10... 5.1 -- -- -- -- -- --

29... 4.6 -- -- -- -- -- --

MAR

24... 3.6 -- -- -- -- -- --

APR

19... 4.0 -- -- -- -- -- --

MAY

05... 2.9 1.9 -- 7.2 1.7 <.10 8.5

24... 1.6 -- 21 -- -- -- --

26... 1.3 .84 16 3.7 .46 <.10 6.7

27... 1.6 -- -- -- -- -- --

JUN

01... 1.7 -- -- -- -- -- --

16... 1.3 .82 22 3.2 .40 <.10 6.4

JUL

15... 2.4 1.5 27 6.8 .98 <.10 7.2

AUG

05... 3.8 2.4 39 12 1.8 <.10 8.6

SEP

01... 4.9 3.2 48 18 2.3 <.10 9.1

CADMIUM LEAD, ZINC, CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

22... 1540 8 8 11 18 1200 1100

NOV

17... 0925 12 11 10 23 1900 1700

DEC

10... 1210 11 11 14 24 1700 1700

29... 1300 8 8 6 33 1300 --

MAR

24... 0830 7 8 8 49 1100 1050

APR

19... 1515 5 5 4 13 700 689

MAY

05... 1445 3 3.6 7 17.1 543 503

24... 1030 2 3.3 5 387 244 453

26... 0800 1 4.1 5 539 204 520

27... 0945 2 2.2 4 107 247 292

JUN

01... 0845 2 1.9 5 36.9 253 265

16... 0950 1 1.6 4 108 181 216

JUL

15... 0800 3 3.2 7 18.9 427 417

AUG

05... 1540 5 5.0 15 42.4 564 539

SEP

01... 0840 7 6.9 13 18.6 1040 901
49

SPOKANE RIVER BASIN

12413190 MOON CREEK ABOVE MOUTH AT ELK CREEK, ID 

LOCATION.--Lat 47o32’02”, long 116o03’28”, in NW1/4SW1/4SE1/4 sec. 3, T. 48N., R. 3E., Shoshone County, 

Hydrologic Unit 17010302, at bridge crossing at Elk Creek, 0.1 mi upstream from South Fork Coeur d’ Alene River.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

28... 0745 1.3 95 7.2 7.0 8.0 34 7.6

NOV

18... 1355 1.6 92 7.8 6.0 7.5 37 8.1

DEC

14... 1055 4.8 90 7.5 9.0 5.1 33 7.3

JAN

21... 0710 21 63 7.3 -.5 3.5 23 5.1

MAR

22... 0905 63 46 6.8 6.0 4.0 16 3.8

APR

20... 1235 43 43 6.5 12.0 7.0 15 3.6

MAY

04... 1335 17 51 7.2 4.5 7.1 18 4.2

23... 1540 8.7 58 7.4 30.5 14.0 21 5.0

JUN

16... 1320 4.2 74 7.5 23.5 9.5 26 6.0

JUL

20... 0800 2.1 81 7.0 16.5 11.7 32 7.2

AUG

04... 1155 1.5 90 7.3 27.5 14.0 35 8.0

31... 1425 1.4 101 7.2 13.5 12.0 38 8.5

ANC MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

28... 3.7 -- -- -- -- -- --

NOV

18... 4.0 -- -- -- -- -- --

DEC

14... 3.6 -- -- -- -- -- --

JAN

21... 2.4 -- -- -- -- -- --

MAR

22... 1.7 -- -- -- -- -- --

APR

20... 1.5 -- -- -- -- -- --

MAY

04... 1.8 2.0 -- 11 .24 <.10 16

23... 2.2 2.2 12 13 .27 <.10 16

JUN

16... 2.7 2.4 17 15 .28 <.10 18

JUL

20... 3.3 2.6 20 16 .47 <.10 18

AUG

04... 3.7 2.8 20 20 .59 <.10 18

31... 4.1 2.9 20 24 E.28 <.10 19

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

28... 0745 <1 <1 1 2 130 120

NOV

18... 1355 <1 <1 <1 2 120 120

DEC

14... 1055 <1 <1 <1 2 170 160

JAN

21... 0710 <1 <1 <1 3 100 100

MAR

22... 0905 <1 <1 <1 47 57 110

APR

20... 1235 <1 <1 <1 5 45 41.1 

MAY

04... 1335 <1 -- <1 1.1 56 57.2 

23... 1540 <1 -- <1 .49 61 69.0 

JUN

16... 1320 <1 -- <1 .75 74 67.6 

JUL

20... 0800 <1 -- <1 .49 93 90.5 

AUG

04... 1155 <1 -- <1 .34 81 78.0 

31... 1425 <1 -- <1 .60 85 82.9 

E Positive detection, but below stated detection limit.
50

SPOKANE RIVER BASIN

12413210 SOUTH FORK COEUR D’ALENE AT ELIZABETH PARK NEAR KELLOGG, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1992 to current year. 

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

19... 1610 68 210 7.7 5.0 10.5 72 19

NOV

17... 1600 94 196 7.8 5.5 6.5 70 19

DEC

15... 1445 200 162 7.5 4.0 4.5 58 16

JAN

21... 1320 358 135 7.5 5.5 4.5 50 13

FEB

10... 0715 235 159 7.6 -1.0 2.0 58 15

MAR

09... 0745 254 148 7.4 3.0 2.5 58 15

APR

12... 1515 355 126 7.6 11.0 6.9 35 9.5

20... 0740 1320 74 7.1 6.0 5.5 30 8.0

MAY

06... 0745 664 97 7.4 .0 4.0 38 10

25... 1345 2460 44 7.3 25.0 9.0 18 5.1

27... 1500 1740 55 7.2 27.5 10.0 22 6.0

JUN

01... 1610 1450 56 7.4 17.0 8.5 22 6.1

JUL

15... 1015 406 86 7.2 18.0 10.5 34 9.1

AUG

09... 1645 168 147 7.6 28.0 19.0 54 14

30... 1505 113 178 7.3 19.5 16.5 65 17

ANC MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

19... 5.9 -- -- -- -- -- --

NOV

17... 5.6 -- -- -- -- -- --

DEC

15... 4.7 -- -- -- -- -- --

JAN

21... 4.1 -- -- -- -- -- --

FEB

10... 4.8 -- -- -- -- -- --

MAR

09... 4.7 -- -- -- -- -- --

APR

12... 2.7 -- -- -- -- -- --

20... 2.4 -- -- -- -- -- --

MAY

06... 3.1 3.0 -- 12 1.7 <.10 9.1

25... 1.4 1.1 18 4.9 .58 <.10 8.6

27... 1.7 -- -- -- -- -- --

JUN

01... 1.7 1.4 20 <.10 <.10 <.10 8.6

JUL

15... 2.6 2.5 29 11 1.1 <.10 7.9

AUG

09... 4.3 6.1 39 26 2.0 <.10 9.4

30... 5.4 8.1 43 36 2.3 <.10 9.8

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

19... 1610 8 9 5 10 1100 1000

NOV

17... 1600 10 9 5 14 1400 1400

DEC

15... 1445 7 7 4 8 1100 1100

JAN

21... 1320 5 5 4 8 780 820

FEB

10... 0715 7 7 3 8 1100 1000

MAR

09... 0745 6 7 4 11 1100 1000

APR

12... 1515 4 5 5 130 660 727

20... 0740 3 5 4 260 510 668

MAY

06... 0745 4 3.7 4 16.2 561 505

25... 1345 1 4.2 3 336 184 598

27... 1500 2 2.4 4 180 228 327

JUN

01... 1610 2 1.9 4 38.9 237 248

JUL

15... 1015 3 3.5 6 14.6 444 432

AUG

09... 1645 6 5.8 8 14.4 714 655

30... 1505 6 6.6 8 11.6 819 728
51

SPOKANE RIVER BASIN

12413290 GOVERNMENT GULCH NEAR MOUTH AT SMELTERVILLE, ID

LOCATION.--Lat 47o32’42”, long 116o09’59”, in SW1/4SW1/4SE1/4 sec. 35, T. 49N., R. 2E., Shoshone County, Hydrologic

Unit 17010302, 0.3 mi upstream from South Fork Coeur d’Alene River at Smelterville.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

28... 0905 1.2 139 6.9 9.5 8.0 39 11

NOV

19... 1108 1.5 208 6.6 6.5 5.5 61 18

DEC

14... 0920 4.7 189 6.5 2.0 4.2 57 16

29... 0850 6.3 170 6.7 4.8 3.5 53 15

FEB

24... 1205 15 168 7.1 6.5 5.0 51 15

APR

20... 1020 18 47 6.5 9.5 6.5 14 3.9

MAY

04... 1200 13 50 7.0 6.0 8.6 14 4.0

23... 1305 15 40 7.0 27.0 14.2 11 3.0

JUN

16... 1000 3.4 74 6.9 26.0 16.0 21 6.0

JUL

20... 0925 2.1 82 6.5 19.0 14.0 24 6.9

AUG

04... 0900 1.8 84 7.0 21.0 11.5 25 7.3

31... 1300 1.5 87 6.7 15.0 12.5 26 7.4

ANC

MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

28... 2.6 -- -- -- -- -- --

NOV

19... 4.0 -- -- -- -- -- --

DEC

14... 3.9 -- -- -- -- -- --

29... 3.6 -- -- -- -- -- --

FEB

24... 3.4 -- -- -- -- -- --

APR

20... .98 -- -- -- -- -- --

MAY

04... 1.1 1.5 -- 14 1.0 <.10 13

23... .78 1.4 6 10 .26 <.10 12

JUN

16... 1.5 1.5 8 21 .63 <.10 14

JUL

20... 1.7 1.5 9 24 .37 <.10 13

AUG

04... 1.7 1.5 10 24 .41 <.10 13

31... 1.8 1.5 9 26 E.26 <.10 13

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

28... 0905 290 -- 3 6 9500 --

NOV

19... 1108 420 -- 5 8 14000 14000 

DEC

14... 0920 360 -- 16 42 11000 12000 

29... 0850 280 270 6 43 9900 9900 

FEB

24... 1205 310 -- <1 400 10000 10900 

APR

20... 1020 41 47 3 58 1400 1430 

MAY

04... 1200 46 47.8 5 12.4 1530 1500 

23... 1305 29 29.3 4 22.8 872 913 

JUN

16... 1000 90 87.2 4 11.2 2870 2960 

JUL

20... 0925 112 118 3 12.7 3780 4420 

AUG

04... 0900 114 118 3 10.6 3610 3750 

31... 1300 117 124 3 7.6 4350 4620 

E Positive detection, but below stated detection limit.
52

 SPOKANE RIVER BASIN

12413445 PINE CREEK BELOW AMY GULCH NEAR PINEHURST, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1998 to current year.

PERIOD OF DAILY RECORD.--February to September current year.

PERIOD OR DAILY RECORD.--

WATER TEMPERATURES: February to September current year.

SPECIFIC CONDUCTANCE: February to September current year.

INSTRUMENTATION.--Water-quality data recorder since February 1999.

REMARKS.--Missing data due to equipment damage.

EXTREMES FOR CURRENT YEAR.--

WATER TEMPERATURES: Maximum recorded, 15.5 oC Aug. 2-4, 6, 8-10, 18-20, 23, 26; minimum recorded, 2.0 oC on M

SPECIFIC CONDUCTANCE: Maximum recorded daily mean, 34 micromhos/cm Sep. 22; minimum recorded daily mean, 

15 micromhos/cm May 24-30, June 16-17.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

21... 1715 13 40 7.1 10.5 11.5 15 3.8

NOV

19... 1353 33 47 6.7 5.0 9.0 16 4.0

DEC

09... 0845 73 47 7.1 .0 6.0 12 3.1

29... 0815 145 34 7.7 1.5 4.0 12 3.0

FEB

24... 1440 788 26 7.1 6.0 3.0 9 2.3

APR

20... 0745 833 21 6.9 8.0 5.0 7 1.7

MAY

06... 0710 298 21 6.3 3.0 4.0 7 1.8

19... 1545 569 20 6.5 15.0 8.0 7 1.7

25... 1100 1340 16 7.3 6.7 8.2 5 1.4

27... 1310 716 17 6.9 17.5 8.5 6 1.5

JUN

01... 1815 593 17 6.6 16.0 8.0 6 1.5

16... 1215 594 17 7.1 27.5 10.4 6 1.6

JUL

20... 1045 55 25 6.8 22.5 12.5 9 2.4

AUG

11... 1550 36 31 6.7 23.0 13.0 11 2.8

31... 1200 21 32 6.7 12.5 11.5 12 3.0

ANC

MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

21... 1.2 -- -- -- -- -- --

NOV

19... 1.4 -- -- -- -- -- --

DEC

09... 1.1 -- -- -- -- -- --

29... 1.0 -- -- -- -- -- --

FEB

24... .82 -- -- -- -- -- --

APR

20... .58 -- -- -- -- -- --

MAY

06... .60 .85 -- 2.4 .16 <.10 8.8

19... .54 -- -- -- -- -- --

25... .42 .74 6 1.3 .17 <.10 6.9

27... .45 -- -- -- -- -- --

JUN

01... .47 -- -- -- -- -- --

16... .48 .68 7 .97 .12 <.10 7.1

JUL

20... .78 .94 10 2.3 .14 <.10 9.0

AUG

11... .93 1.1 10 3.3 .18 <.10 10

31... .99 1.2 11 4.3 E.16 <.10 10

CADMIUM LEAD, ZINC, CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

21... 1715 <1 <1 <1 <1 140 --

NOV

19... 1353 <1 <1 <1 <1 140 140

DEC

09... 0845 <1 <1 <1 <1 140 140

29... 0815 <1 <1 <1 2 170 --

FEB

24... 1440 <1 <1 <1 14 140 151

APR

20... 0745 <1 <1 <1 4 120 127

MAY

06... 0710 <1 -- <1 .93 95 94.5 

19... 1545 <1 -- <1 .78 68 67.9 

25... 1100 <1 -- <1 31.2 39 76.1 

27... 1310 <1 -- <1 4.0 40 42.3 

JUN

01... 1815 <1 -- <1 1.4 40 41.5 

16... 1215 <1 -- <1 .80 35 33.9 

JUL

20... 1045 <1 -- <1 -- 87 84.0 

AUG

11... 1550 <1 -- <1 -- 96 94.3 

31... 1200 <1 -- <1 .59 108 102

E Positive detection, but below stated detection limits.
53

SPOKANE RIVER BASIN

12413470 SOUTH FORK COEUR D’ALENE RIVER NEAR PINEHURST, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--July 1989 to current year.

PERIOD OF DAILY RECORD.--

WATER TEMPERATURES: May 19 to September 1998, March to September 1999 (discontinued). 

SPECIFIC CONDUCTANCE: March 4 to September 30 1999.

INSTRUMENTATION.--Water quality data logger from March to September 1999.

EXTREMES FOR PERIOD OF DAILY RECORD.--

WATER TEMPERATURES: Maximum, 23.7 oC July 27, 1998.

EXTREMES FOR CURRENT PERIOD.--

WATER TEMPERATURES: Maximum, 21.7 oC Aug. 3.

SPECIFIC CONDUCTANCE: Maximum daily mean, 327 microsiemens, Sep. 27, 1999, minimum daily mean,

47 microsiemens May 25, 1999.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH OXYGEN, COLI- STR

CHARGE, SPE- WATER DIS- FORM, TOCO

INST. CIFIC WHOLE SOLVED FECAL, FECA

CUBIC CON- FIELD TEMPER- TEMPER- TUR- OXYGEN, (PER- 0.7 KF A

FEET DUCT- (STAND- ATURE ATURE BID- DIS- CENT UM-MF (CO

DATE TIME PER ANCE ARD AIR WATER ITY SOLVED SATUR- (COLS./ PE

SECOND (US/CM) UNITS) (DEG C) (DEG C) (NTU) (MG/L) ATION) 100 ML) 100 

(00061) (00095) (00400) (00020) (00010) (00076) (00300) (00301) (31625) (316

OCT

26... 1015 98 252 7.1 11.5 10.0 -- -- -- -- -

NOV

17... 1250 164 268 7.2 6.0 7.0 -- -- -- -- -

DEC

30... 1445 1200 105 7.4 4.0 3.0 -- -- -- -- -

FEB

08... 1500 527 140 7.0 2.0 5.0 -- -- -- -- -

MAR

09... 0925 440 144 7.2 8.0 3.5 -- -- -- -- -

APR

13... 0730 610 147 7.2 6.0 4.1 1.3 11.8 97 K2 K

MAY

06... 1330 1160 95 7.3 18.0 8.8 1.8 11.8 111 <1 K

JUN

02... 0745 2160 56 6.2 13.5 7.0 4.0 -- -- K5 2

JUL

15... 1200 508 109 7.1 24.0 13.0 2.0 10.2 106 K1 K

AUG

09... 1415 237 176 7.3 30.0 19.0 .65 7.7 91 K3 K

SEP

07... 1430 140 305 7.2 18.0 14.5 .44 10.8 113 <1 K1

ANC ANC ANC

HARD- MAGNE- POTAS- WATER UNFLTRD WATER CHL

NESS CALCIUM SIUM, SODIUM, SIUM, UNFLTRD CARB UNFLTRD SULFATE RID

TOTAL DIS- DIS- DIS- DIS- FET FET FET DIS- DI

(MG/L SOLVED SOLVED SOLVED SOLVED FIELD FIELD FIELD SOLVED SOL

DATE AS (MG/L (MG/L (MG/L SODIUM (MG/L MG/L AS MG/L AS MG/L AS (MG/L (MG

CACO3) AS CA) AS MG) AS NA) PERCENT AS K) HCO3 CO3 CACO3 AS SO4) AS 

(00900) (00915) (00925) (00930) (00932) (00935) (00440) (00445) (00410) (00945) (009

OCT

26... 90 23 7.7 -- -- -- -- -- -- -- --

NOV

17... 96 25 8.3 -- -- -- -- -- -- -- --

DEC

30... 36 10 2.7 -- -- -- -- -- -- -- --

FEB

08... 51 13 4.3 -- -- -- -- -- -- -- --

MAR

09... 54 14 4.6 -- -- -- -- -- -- -- --

APR

13... 53 14 4.4 -- -- -- -- -- -- -- --

MAY

06... 35 9.3 2.9 2.4 -- -- 27 0 22 18 2.

JUN

02... 22 5.9 1.6 1.3 -- -- 16 0 14 9.4 .

JUL

15... 41 11 3.3 2.5 -- -- -- -- 25 21 1.

AUG

09... 64 17 5.3 5.3 -- -- -- -- 32 42 2.

SEP

07... 120 32 10 6.5 10 1.4 39 0 32 100 2.

K Results based on counts outside ideal colony range.
54

SPOKANE RIVER BASIN

112413470 SOUTH FORK COEUR D’ ALENE RIVER NEAR PINEHURST, ID--Continued

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

SOLIDS, NITRO- NITRO- NITRO- PHOSFLUO- SILICA, SUM OF SOLIDS, SOLIDS, GEN, GEN, GEN,AM- PHORU

RIDE, DIS- CONSTI- DIS- DIS- NO2+NO3 AMMONIA MONIA + PHOS- ORTHO

DIS- SOLVED TUENTS, SOLVED SOLVED DIS- DIS- ORGANIC PHORUS DISSOLVED (MG/L DIS- (TONS (TONS SOLVED SOLVED TOTAL TOTAL SOLVE

DATE (MG/L AS SOLVED PER PER (MG/L (MG/L (MG/L (MG/L (MG/L

AS F) SIO2) (MG/L) AC-FT) DAY) AS N) AS N) AS N) AS P) AS P)

(00950) (00955) (70301) (70303) (70302) (00631) (00608) (00625) (00665) (00671

OCT

26... -- -- -- -- -- .348 .348 .50 .095 .035

NOV

17... -- -- -- -- -- .363 .310 .42 .048 .019

DEC

30... -- -- -- -- -- .176 .061 .16 .041 .009

FEB

08... -- -- -- -- -- .211 .068 .11 .025 .010

MAR

09... -- -- -- -- -- .203 .061 .23 .024 .008

APR

13... -- -- -- -- -- .139 .047 E.06 .018 .006

MAY

06... <.10 9.5 -- -- -- .061 .036 E.08 .016 .006

JUN

02... <.10 7.3 -- -- -- .035 .013 .12 .023 .004

JUL

15... .10 8.5 -- -- -- .044 .052 E.09 .021 .007

AUG

09... .20 10 -- -- -- .178 .119 .16 .040 .011

SEP

07... .29 11 186 .25 70.3 .252 .228 .33 .050 .016

SEDICADMIUM LEAD, ZINC, MENT, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL SEDI- DISDIS- UNFLTRD DIS- RECOV- DIS- RECOV- MENT, CHARGE,

SOLVED TOTAL SOLVED ERABLE SOLVED ERABLE SUS- SUSDATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L PENDED PENDED

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN) (MG/L) (T/DAY)

(01025) (01027) (01049) (01051) (01090) (01092) (80154) (80155)

OCT

26... 1015 11 14 14 150 2130 2300 -- --

NOV

17... 1250 15 16 5.7 63 1910 2000 -- --

DEC

30... 1445 4.9 6 2.7 200 661 700 -- --

FEB

08... 1500 11 11 3.3 16 1180 1300 -- --

MAR

09... 0925 8.7 9 5.1 15 1310 1200 -- --

APR

13... 0730 6.2 7 3.6 21 979 950 3 4.9

MAY

06... 1330 3.8 4 5.0 44 601 590 7 22

JUN

02... 0745 2.1 3 3.6 130 317 360 31 181

JUL

15... 1200 4.2 5 6.7 29 714 660 3 4.1

AUG

09... 1415 7.4 8 7.9 26 1210 1100 2 1.3

SEP

07... 1430 7.5 8 4.5 19 1340 1400 1 .38 

E Positive detection but below stated detection limiSPOKANE RIVER BASIN
55

SPOKANE RIVER BASIN

12413500 COEUR D’ ALENE RIVER NEAR CATALDO, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water year 1987 to current year.

WATER-QUALITY DATA, OCTOBER 1998 TO OCTOBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT 

22... 0850 343 143 7.1 3.0 7.0 56 14

NOV

18... 1525 819 93 7.3 6.0 7.0 36 9.2

DEC

15... 1100 2390 65 7.3 4.5 4.0 27 6.6

JAN 

27... 1415 2140 64 7.2 .0 2.0 26 6.4

FEB

09... 1450 1910 68 7.4 1.0 3.0 27 6.8

MAR

09... 1200 2260 62 7.2 5.5 3.5 27 6.6

APR

13... 1410 3380 59 7.4 10.5 5.5 24 6.0

MAY

10... 1300 5620 43 7.2 13.0 6.1 18 4.5

25... 1410 16000 32 6.8 26.5 11.0 13 3.4

JUN

08... 1130 5130 44 7.0 8.5 7.5 18 4.7

JUL

13... 1505 1440 69 7.0 28.0 15.0 29 7.5

AUG

11... 1435 716 96 7.2 23.0 17.0 38 9.9

SEP

01... 1245 471 108 7.3 24.0 13.0 43 11

22... 1600 371 126 7.3 27.0 13.5 51 13

OCT

20... 1010 365 135 7.0 6.5 7.5 55 14

ANC

MAGNE- POTAS- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, SIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS

AS MG) AS NA) AS K) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00935) (00410) (00945) (00940) (00950) (00955)

OCT 

22... 5.2 -- -- -- -- -- -- --

NOV

18... 3.3 -- -- -- -- -- -- --

DEC

15... 2.4 -- -- -- -- -- -- --

JAN 

27... 2.4 -- -- -- -- -- -- --

FEB

09... 2.5 -- -- -- -- -- -- --

MAR

09... 2.4 1.8 .49 21 8.0 1.6 <.10 11

APR

13... 2.2 -- -- -- -- -- -- --

MAY

10... 1.7 1.2 -- -- 3.9 .34 <.10 9.5

25... 1.1 .86 -- 11 3.1 .22 <.10 13

JUN

08... 1.6 1.1 -- 16 5.3 .30 <.10 8.5

JUL

13... 2.4 1.6 -- 21 9.6 .51 <.10 9.3

AUG

11... 3.3 2.5 -- 26 17 .77 <.10 10

SEP

01... 3.8 2.9 -- 26 22 .48 .11 10

22... 4.5 3.0 -- 26 31 .90 .11 11

OCT

20... 4.7 2.6 -- 26 34 .97 .12 10

CADMIUM LEAD, ZINC, 

CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE

DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L 

AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT 

22... 0850 4 3 2 6 650 630

NOV

18... 1525 3 3 1 9 460 450

DEC

15... 1100 2 2 <1 8 250 250

JAN 

27... 1415 2 2 1 4 280 270

FEB

09... 1450 3 3 1 5 330 330

MAR

09... 1200 2 2 1 5 290 278

APR

13... 1410 1 1 <1 6 190 195

MAY

10... 1300 <1 .75 1 10.0 111 113

25... 1410 <1 2.1 3 233 67 209

JUN

08... 1130 <1 .84 2 15.6 128 127

JUL

13... 1505 2 1.7 3 9.3 252 249

AUG

11... 1435 2 2.4 3 7.1 367 356

SEP

01... 1245 3 2.8 3 7.0 478 457

22... 1600 3 2.9 2 5.7 528 542

OCT

20... 1010 3 2.9 1 4.9 535 498
56

SPOKANE RIVER BASIN

12413810 COEUR D’ ALENE RIVER AT ROSE LAKE, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--March 1994 to current year.

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARDINST. CIFIC WHOLE NESS CALCIUM

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DISFEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED

DATE TIME PER ANCE ARD AIR WATER AS (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA)

(00061) (00095) (00400) (00020) (00010) (00900) (00915)

OCT

23... 1330 -- 103 7.3 14.0 9.7 40 9.9

NOV

16... 0845 994 84 7.3 7.0 7.0 34 8.6

DEC

14... 0900 2080 80 7.0 2.0 4.7 29 7.2

MAR

23... 1445 9040 45 7.1 14.0 5.0 18 4.4

APR

21... 1430 13200 36 7.2 9.5 5.1 15 3.7

MAY

06... 0945 7490 45 7.0 11.5 6.2 18 4.5

26... 1350 15600 30 6.6 23.0 8.0 12 3.1

JUN

17... 0715 6870 38 7.1 17.0 13.0 15 4.0

JUL

07... 0830 2400 67 7.4 18.0 14.0 26 6.8

AUG

11... 1130 795 91 7.2 25.5 19.5 37 9.5

SEP

02... 0815 635 118 7.3 5.5 16.0 48 12

ANC MAGNE- WATER CHLO- FLUO- SILICA,

SIUM, SODIUM, UNFLTRD SULFATE RIDE, RIDE, DISDIS- DIS- FET DIS- DIS- DIS- SOLVED

SOLVED SOLVED FIELD SOLVED SOLVED SOLVED (MG/L 

DATE (MG/L (MG/L MG/L AS (MG/L (MG/L (MG/L AS AS MG) AS NA) CACO3 AS SO4) AS CL) AS F) SIO2) 

(00925) (00930) (00410) (00945) (00940) (00950) (00955)

OCT

23... 3.8 -- -- -- -- -- --

NOV

16... 3.1 -- -- -- -- -- --

DEC

14... 2.7 -- -- -- -- -- --

MAR

23... 1.6 -- -- -- -- -- --

APR

21... 1.4 -- -- -- -- -- --

MAY

06... 1.7 1.2 -- 5.0 .43 <.10 9.7

26... 1.1 .85 14 3.1 <.10 <.10 7.2

JUN

17... 1.3 .95 16 4.4 E.20 <.10 8.1

JUL

07... 2.2 1.5 20 8.7 .51 <.10 9.0

AUG

11... 3.2 2.2 25 16 .73 <.10 10

SEP

02... 4.2 2.9 26 27 .54 .11 10

CADMIUM LEAD, ZINC, CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

23... 1330 2 3 4 9 530 500

NOV

16... 0845 2 3 3 26 460 420

DEC

14... 0900 2 3 2 14 390 690

MAR

23... 1445 <1 1 2 49 150 178

APR

21... 1430 <1 <1 2 67 97 139

MAY

06... 0945 <1 .75 2 11.2 113 116

26... 1350 <1 1.7 5 231 78 --

JUN

17... 0715 <1 .89 4 36.1 109 126

JUL

07... 0830 1 1.5 3 8.5 244 239

AUG

11... 1130 2 2.1 5 24.4 318 313

SEP

02... 0815 2 2.4 6 18.0 407 395
57

SPOKANE RIVER BASIN

12413860 COEUR D’ ALENE RIVER NEAR HARRISON, ID

WATER-QUALITY RECORDS

PERIOD OF RECORD.--January 1991 to current year. 

WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999

DIS- PH

CHARGE, SPE- WATER HARD- MAGNEINST. CIFIC WHOLE NESS CALCIUM SIUM, S

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DIS- DIS- 

FEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED SOLVED 

DATE TIME PER ANCE ARD AIR WATER AS (MG/L (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA) AS MG) A

(00061) (00095) (00400) (00020) (00010) (00900) (00915) (00925) (

OCT

23... 0930 -- 118 7.3 6.0 9.0 48 12 4.4 

NOV

16... 1130 1100 121 7.1 8.5 7.5 47 12 4.3 

DEC

14... 1115 2440 87 7.0 3.0 4.0 32 7.9 3.0 

MAR

23... 1215 7850 46 7.0 14.5 6.5 17 4.3 1.6 

APR

21... 1115 10700 37 7.2 13.0 6.4 14 3.6 1.3 

MAY

06... 1330 8320 44 7.3 19.5 7.5 18 4.4 1.7 

27... 0900 12400 33 6.7 17.5 10.0 13 3.3 1.2 

JUN

17... 0945 6150 39 7.0 19.5 13.5 16 4.1 1.3 

JUL

14... 1645 1890 74 7.2 18.5 19.0 30 7.8 2.5 

AUG

11... 0815 627 96 7.1 21.0 22.0 39 10 3.4 

SEP

09... 1645 362 113 7.3 23.0 22.0 45 11 4.0 

ANC NITRO- NITRO- NITRO- 

WATER CHLO- FLUO- SILICA, GEN, GEN, GEN,AM- 

UNFLTRD SULFATE RIDE, RIDE, DIS- NO2+NO3 AMMONIA MONIA + PHOS- O

FET DIS- DIS- DIS- SOLVED DIS- DIS- ORGANIC PHORUS 

FIELD SOLVED SOLVED SOLVED (MG/L SOLVED SOLVED TOTAL TOTAL 

DATE MG/L AS (MG/L (MG/L (MG/L AS (MG/L (MG/L (MG/L (MG/L 

CACO3 AS SO4) AS CL) AS F) SIO2) AS N) AS N) AS N) AS P) 

(00410) (00945) (00940) (00950) (00955) (00631) (00608) (00625) (00665) (

OCT

23... -- -- -- -- -- .044 .002 .14 .007 

NOV

16... -- -- -- -- -- .114 .029 .10 .008 

DEC

14... -- -- -- -- -- .139 .042 <.10 .013 

MAR

23... -- -- -- -- -- .032 .004 -- .023 

APR

21... -- -- -- -- -- .033 .011 E.05 .053 

MAY

06... -- 4.9 .39 <.10 9.9 .014 .004 E.05 .008 

27... 12 3.5 .25 <.10 8.6 -- -- -- -- 

JUN

17... 14 3.9 .26 <.10 8.1 .017 <.002 .11 .009 

JUL

14... 21 12 .51 <.10 8.9 .009 <.002 .14 .006 

AUG

11... 24 19 .71 <.10 9.4 <.005 .003 .17 .006 

SEP

09... 26 24 .49 <.10 9.7 .020 .006 .21 .010 

CADMIUM LEAD, ZINC, CADMIUM WATER LEAD, TOTAL ZINC, TOTAL 

DIS- UNFLTRD DIS- RECOV- DIS- RECOVSOLVED TOTAL SOLVED ERABLE SOLVED ERABLE DATE TIME (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS CD) AS CD) AS PB) AS PB) AS ZN) AS ZN)

(01025) (01027) (01049) (01051) (01090) (01092)

OCT

23... 0930 3 3 6 27 540 560

NOV

16... 1130 3 3 6 27 580 600

DEC

14... 1115 2 2 2 22 370 380

MAR

23... 1215 1 2 7 110 170 212

APR

21... 1115 <1 2 11 430 120 304

MAY

06... 1330 <1 .71 4 22.0 110 117

27... 0900 <1 1.9 14 296 90 241

JUN

17... 0945 <1 1.0 4 31.9 137 142

JUL

14... 1645 1 1.6 10 27.2 239 237

AUG

11... 0815 2 2.0 4 30.4 296 312

SEP

09... 1645 2 2.1 3 17.9 331 340

E Positive detection, but below positive detection limit.
58

ANALYSES OF SAMPLES COLLECTED AT WATER QUALITY PARTIAL-RECORD STATIONS AND MISCELLANEOU

Water quality partial-record stations and miscellaneous sites are locations where chemical-quality, biological,

or sediment data are collected once only, intermittently, or systematically but at limited frequency over a period of

years for use in hydrologic analyses.

WATER QUALITY DATA, MAY TO JUNE 1999

DIS- PH 

CHARGE, SPE- WATER HARD- MAGNE- 

INST. CIFIC WHOLE NESS CALCIUM SIUM, SODIUM, 

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DIS- DIS- DIS- 

FEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED SOLVED SOLVED 

DATE TIME PER ANCE ARD AIR WATER AS (MG/L (MG/L (MG/L 

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA) AS MG) AS NA) 

(00061) (00095) (00400) (00020) (00010) (00900) (00915) (00925) (00930) 

SPOKANE RIVER BASIN

12411950 BEAVER CR AB CARPENTER GULCH NR PRICHARD, ID (LAT 47 37 59N LONG 115 58 46W)

MAY

24... 0920 140 49.0 7.06 16.0 8.00 21 5.5 1.7 1.2 

12413025 LITTLE NORTH FORK AT HALE FISH HATCHERY AB MOUTH, ID (LAT 47 27 54N LONG 115 43 18W)

MAY 

22... 1030 47 19.0 6.90 16.5 5.00 7 1.7 .68 .9 

12413030 SF COEUR D ALENE R BL OBRIEN GULCH NR LARSON, ID (LAT 47 28 00N LONG 115 43 58W)

MAY 

22... 1355 110 33.0 7.11 18.0 7.50 13 3.4 1.0 1.3 

25... 1750 154 26.0 7.30 22.5 6.30 8 2.3 .67 .9 

12413103 SF COEUR D ALENE R AB SLAUGHTERHSE GULCH AT MULLAN, ID (LAT 47 27 58N LONG 115 48 48W)

MAY 

24... 1450 470 43.0 7.80 26.4 7.30 18 5.2 1.3 1.0 

12413104 SF COEUR D ALENE R BL TROWBRIDGE GULCH NR WALLACE, ID (LAT 47 28 27N LONG 115 52 07W)

MAY 

24... 1600 470 55.0 7.70 25.3 7.80 23 6.3 1.8 1.1 

12413120 CANYON CREEK AT GEM, ID (LAT 47 30 30N LONG 115 52 01W)

MAY 

24... 1100 310 27.0 6.66 23.5 6.20 10 2.7 .68 .7 

12413126 NINEMILE CR AB MOUTH OF EF NINEMILE CR NR BLACKCLOUD, ID (LAT 47 30 51N LONG 115 53 52W)

MAY

23... 1120 5.6 180 8.01 22.5 8.80 95 23 9.4 1.1 

124131267 EF NINEMILE CREEK NR BLACKCLOUD, ID (LAT 47 31 27N LONG 115 52 49W)

MAY 

23... 0810 38 35.0 6.34 9.50 4.50 10 3.2 .53 1.4 

12413131 SF COEUR D ALENE R ABV PLACER CR AT WALLACE, ID (LAT 47 28 30N LONG 115 55 39W) 

MAY 

24... 1300 1200 52.0 7.60 20.0 8.10 21 5.8 1.6 1.1 

12413151 LAKE CREEK AB MOUTH NR SILVERTON, ID (LAT 47 29 24N LONG 115 57 06W)

MAY 

22... 0950 30 64.0 7.83 15.0 7.00 27 7.0 2.3 1.9 

12413168 TWOMILE CREEK AB MOUTH AT OSBURN, ID (LAT 47 30 35N LONG 115 59 43W)

MAY

22... 1145 4.8 58.0 7.18 20.5 11.5 23 6.9 1.4 1.6 

12413169 SF COEUR D ALENE R BLW TWOMILE CR NR OSBURN, ID (LAT 47 30 36N LONG 115 59 47W) 

MAY 

05... 1610 533 -- -- -- -- 38 10 3.0 2.0 

24... 1210 1400 53.0 7.27 28.0 8.70 22 6.2 1.7 -- 

26... 1030 1800 47.0 6.88 18.0 8.50 19 5.2 1.4 .9 

27... 1200 1400 48.0 7.47 24.5 7.80 22 6.0 1.6 -- 

JUN

01... 1215 1000 56.0 7.52 16.5 7.20 23 6.4 1.8 -- 

12413174 TERROR GULCH CREEK AB MOUTH NR OSBURN, ID (LAT 47 30 52N LONG 116 01 17W)

MAY

22... 1355 1.0 95.0 7.33 23.0 14.5 35 7.4 3.9 3.2 

12413175 SF COEUR D ALENE R AT TERROR GULCH AT OSBURN, ID (LAT 47 30 52N LONG 116 01 20W)

MAY 

24... 1425 1500 54.0 7.51 31.0 9.50 22 6.2 1.7 1.0 

3412413179 SF COEUR D ALENE R AB BIG CREEK NR BIG CREEK, ID (LAT 47 31 38N LONG 116 02 56W)

MAY

24... 1640 1700 55.0 7.60 31.5 10.5 23 6.3 1.7 1.0 
58

ANALYSES OF SAMPLES COLLECTED AT WATER QUALITY PARTIAL-RECORD STATIONS AND MISCELLANEOU

WATER QUALITY DATA, MAY TO JUNE 1999

CHLO- FLUO- SILICA, CADMIUM LEAD, 

SULFATE RIDE, RIDE, DIS- CADMIUM WATER LEAD, TOTAL ZINC, 

DIS- DIS- DIS- SOLVED DIS- UNFLTRD DIS- RECOV- DIS- 

SOLVED SOLVED SOLVED (MG/L SOLVED TOTAL SOLVED ERABLE SOLVED 

DATE (MG/L (MG/L (MG/L AS (UG/L (UG/L (UG/L (UG/L (UG/L 

AS SO4) AS CL) AS F) SIO2) AS CD) AS CD) AS PB) AS PB) AS ZN) 

(00945) (00940) (00950) (00955) (01025) (01027) (01049) (01051) (01090) 

SPOKANE RIVER BASIN

12411950 BEAVER CR AB CARPENTER GULCH NR PRICHARD, ID (LAT 47 37 59N LONG 115 58 46W)

MAY 

24... 6.4 .3 <.1 11 <1 .31 <1 4.4 59 

12413025 LITTLE NORTH FORK AT HALE FISH HATCHERY AB MOUTH, ID (LAT 47 27 54N LONG 115 43 18W)

MAY 

22... 1.7 .1 <.1 7.2 <1 <.1 <1 .20 1 

12413030 SF COEUR D ALENE R BL OBRIEN GULCH NR LARSON, ID (LAT 47 28 00N LONG 115 43 58W)

MAY

22... 1.7 1.3 <.1 7.3 <1 <.1 <1 1.6 3 

25... 1.3 .7 <.1 6.7 <1 .14 <1 11.2 5 

12413103 SF COEUR D ALENE R AB SLAUGHTERHSE GULCH AT MULLAN, ID (LAT 47 27 58N LONG 115 48 48W)

MAY 

24... 2.1 .8 <.1 6.2 <1 .31 <1 82.7 7 

12413104 SF COEUR D ALENE R BL TROWBRIDGE BULCH NR WALLACE, ID (LAT 47 28 27N LONG 115 52 07W)

MAY

24... 3.5 .8 <.1 6.3 <1 .88 <1 84.6 45 

12413120 CANYON CREEK AT GEM, ID (LAT 47 30 30N LONG 115 52 01W)

MAY

24... 3.8 .5 <.1 6.5 3 3.9 14 477 340 

12413126 NINEMILE CR AB MOUTH OF EF NINEMILE CR NR BLACKCLOUD, ID (LAT 47 30 51N LONG 115 53 52W)

MAY

23... .2 .4 <.1 12 <1 .17 1 2.5 22 

124131267 EF NINEMILE CREEK NR BLACKCLOUD, ID (LAT 47 31 27N LONG 115 52 49W)

MAY

23... 8.2 .2 <.1 11 8 10.5 25 619 1380 

12413131 SF COEUR D ALENE R ABV PLACER CR AT WALLACE, ID (LAT 47 28 30N LONG 115 55 39W) 

MAY

24... 4.7 .8 <.1 7.2 2 4.1 9 480 319 

12413151 LAKE CREEK AB MOUTH NR SILVERTON, ID (LAT 47 29 24N LONG 115 57 06W)

MAY 

22... 7.9 .9 <.1 7.6 <1 <.1 <1 4.4 10 

12413168 TWOMILE CREEK AB MOUTH AT OSBURN, ID (LAT 47 30 35N LONG 115 59 43W)

MAY

22... 9.3 .5 <.1 15 <1 <.1 <1 .31 2 

12413169 SF COEUR D ALENE R BLW TWOMILE CR NR OSBURN, ID (LAT 47 30 36N LONG 115 59 47W) 

MAY

05... 8.4 1.8 <.1 8.8 4 3.8 6 16.4 552 

24... -- -- -- -- 2 3.6 5 376 250 

26... 4.5 .5 <.1 <.1 2 3.9 4 500 222 

27... -- -- -- -- 2 2.5 4 159 257 

JUN

01... -- -- -- -- 2 2.1 6 38.9 267 

12413174 TERROR GULCH CREEK AB MOUTH NR OSBURN, ID (LAT 47 30 52N LONG 116 01 17W)

MAY

22... 21 1.2 <.1 21 <1 <.1 <1 .47 23 

12413175 SF COEUR D ALENE R AT TERROR GULCH AT OSBURN, ID (LAT 47 30 52N LONG 116 01 20W)

MAY

24... 4.7 .7 <.1 7.1 2 3.9 6 477 251 

12413179 SF COEUR D ALENE R AB BIG CREEK NR BIG CREEK, ID (LAT 47 31 38N LONG 116 02 56W)

MAY

24... 5.1 1.4 <.1 6.8 2 5.8 7 854 263 
59

ANALYSES OF SAMPLES COLLECTED AT WATER QUALITY PARTIAL-RECORD STATIONS AND MISCELLANEOUS S

WATER QUALITY DATA, MAY TO JUNE 1999

DIS- PH 

CHARGE, SPE- WATER HARD- MAGNE- W

INST. CIFIC WHOLE NESS CALCIUM SIUM, SODIUM, UN

CUBIC CON- FIELD TEMPER- TEMPER- TOTAL DIS- DIS- DIS- 

FEET DUCT- (STAND- ATURE ATURE (MG/L SOLVED SOLVED SOLVED F

DATE TIME PER ANCE ARD AIR WATER AS (MG/L (MG/L (MG/L MG

SECOND (US/CM) UNITS) (DEG C) (DEG C) CACO3) AS CA) AS MG) AS NA) C

(00061) (00095) (00400) (00020) (00010) (00900) (00915) (00925) (00930) (0

SPOKANE RIVER BASIN

12413185 BIG CREEK AB MOUTH NR BIG CREEK, ID (LAT 47 31 46N LONG 116 03 04W)

MAY 

25... 0805 600 31.0 6.88 13.5 5.00 12 3.2 .95 1.2 

12413204 MONTGOMERY CREEK AB MOUTH NR ELIZABETH PARK, ID (LAT 47 31 51N LONG 116 05 18W)

MAY

22... 1525 7.9 40.0 7.04 21.0 12.5 13 3.2 1.2 2.2 

12413209 ELK CREEK AB MOUTH AT ELIZABETH PARK, ID (LAT 47 31 48N LONG 116 05 24W)

MAY

23... 1515 20 41.0 7.32 29.0 9.00 16 4.3 1.4 .7 

12413250 SF COEUR D ALENE R AT BUNKER AV BRDG AT KELLOGG, ID (LAT 47 32 43N LONG 116 08 00W)

MAY

25... 1600 2600 45.0 7.44 24.5 9.60 19 5.3 1.4 1.1 

12413300 SF COEUR D ALENE RIVER AT SMELTERVILLE, ID (LAT 47 32 55N LONG 116 10 25W)

MAY

25... 0900 2600 56.0 7.60 20.5 6.10 23 6.3 1.6 1.1 

12413360 EF PINE CREEK ABV GILBERT CR NEAR PINEHURST, ID (LAT 47 26 25N LONG 116 10 28W) 

MAY

23... 0755 63 13.0 6.75 12.5 5.00 5 1.3 .36 .7 

12413440 PINE CREEK AB MOUTH OF EF PINE CR AT PINE, ID (LAT 47 29 14N LONG 116 14 26W) 

MAY

23... 1030 410 16.0 6.35 21.5 7.00 6 1.5 .44 .7 

12413460 PINE CREEK AB MOUTH NR PINEHURST, ID (LAT 47 33 02N LONG 116 13 27W)

MAY

25... 1300 1400 20.0 7.30 24.9 8.70 5 1.4 .43 .7 
60

ANALYSES OF SAMPLES COLLECTED AT WATER QUALITY PARTIAL-RECORD STATIONS AND MISCELLANEOUS S

WATER QUALITY DATA, MAY TO JUNE 1999

CHLO- FLUO- SILICA, CADMIUM LEAD, ZI

SULFATE RIDE, RIDE, DIS- CADMIUM WATER LEAD, TOTAL ZINC, TO

DIS- DIS- DIS- SOLVED DIS- UNFLTRD DIS- RECOV- DIS- REC

SOLVED SOLVED SOLVED (MG/L SOLVED TOTAL SOLVED ERABLE SOLVED ERA

DATE (MG/L (MG/L (MG/L AS (UG/L (UG/L (UG/L (UG/L (UG/L (U

AS SO4) AS CL) AS F) SIO2) AS CD) AS CD) AS PB) AS PB) AS ZN) AS 

(00945) (00940) (00950) (00955) (01025) (01027) (01049) (01051) (01090) (01

SPOKANE RIVER BASIN

12413185 BIG CREEK AB MOUTH NR BIG CREEK, ID (LAT 47 31 46N LONG 116 03 04W)

MAY

25... 3.7 .2 <.1 7.2 <1 .13 <1 27.9 1 

12413204 MONTGOMERY CREEK AB MOUTH NR ELIZABETH PARK, ID (LAT 47 31 51N LONG 116 05 18W)

MAY 

22... 8.2 <.1 <.1 15 <1 <.1 <1 .41 3 

12413209 ELK CREEK AB MOUTH AT ELIZABETH PARK, ID (LAT 47 31 48N LONG 116 05 24W)

MAY

23... 6.2 .3 <.1 8.9 <1 .16 <1 14.4 3 

12413250 SF COEUR D ALENE R AT BUNKER AV BRDG AT KELLOGG, ID (LAT 47 32 43N LONG 116 08 00W)

MAY

25... 4.9 .6 <.1 7.3 1 4.4 5 724 187 6

12413300 SF COEUR D ALENE RIVER AT SMELTERVILLE, ID (LAT 47 32 55N LONG 116 10 25W)

MAY

25... 9.2 .5 <.1 7.3 2 -- 5 -- 253 

12413360 EF PINE CREEK ABV GILBERT CR NEAR PINEHURST, ID (LAT 47 26 25N LONG 116 10 28W) 

MAY 

23... .5 <.1 <.1 6.5 <1 <.1 <1 .53 4 

12413440 PINE CREEK AB MOUTH OF EF PINE CR AT PINE, ID (LAT 47 29 14N LONG 116 14 26W) 

MAY 

23... .9 .1 <.1 6.8 <1 <.1 <1 .13 <1 

12413460 PINE CREEK AB MOUTH NR PINEHURST, ID (LAT 47 33 02N LONG 116 13 27W)

MAY

25... 1.3 .2 <.1 7.4 <1 .29 <1 30.5 40 
Woods, P.F. / Concentrations and Loads of Cadmium, Lead, and Zinc, 1999 Snowmelt Runoff, 42 Stations, Coeur d’Alene River B