EPA-908/2-79-001
                    U. S. ENVIRONMENTAL PROTECTION AGENCY
                       ROCKY MOUNTAIN — PRAIRIE REGION
                                REGION VIM
WATER AND AIR QUALITY TRENDS
              IN REGION VIII
              (1978 DATA)
       Data Analysis Branch Surveillance and Analysis Division

        Denver, Colorado          October 1979

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EPA - 908/2-79-001 U.S. Environmental Protection Agency
WATER AND AIR QUALITY TRENDS
IN REGION VIII
(1978 DATA)
Data Analysis Branch
Surveillance and Analysis Division
Denver, Colorado
October 1979

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D1SCLAI4Lg
Thla r4 por ) az been reviewed by the Sutvelitunce end athnlysls
Division, U.S. Environmental rotectJon Agency ReEion ViLI, and approved
for pubLication. Mention of trade names or tommercial products does not
consL ittit cndorscwent or rccoi ui dat tori for use.
Document is available to the public through the Uational Technical
nforrnation Service, Springfield, Virginia 22161.

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ABSTRACT
Water and air quality trends and status for the calendar year 1978
were determined for the six states in Region VIII. These states include
Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming. Data
resident in EPA national data banks (STORET, SAROAD) were analyzed.
Statistical tests which detect significant differences between two
populations were utilized to show trends in both air and water quality.
The status and severity of stream pollutants were determined by relating
parameter concentrations to Water Quality Indicator (WQI) values on a
numerical scale from 0 to 100. The status and severity of air
pollutants reported continues to be a direct measure of air quality
standard and alert level exceedences.
I

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TABLE OF CONTENTS
Page
Abstract
Table of Contents
List of Figures
List of Tables
SECTION I
•1
11
V
ix
Introduction
Summary and Conclusions - Water Quality.
Analytical Procedures - Water
SECTION II
3
4
6
REGIONAL WATER QUALITY SUMMARY
fleqional Overview of Water Quality .
A Summary of Parameter Groups at or
Critical Levels
Fecal Coliform Bacteria.
Nitrogen
Phosphorus
Total Dissolved Solids (TDS)
Suspended Sediment
Trace Elements
Turbidity
Temperature
Dissolved Oxygen
pH
Un-ionized Ammonia
Trophic Status
STORET Parameters and Pollutant Groups
13
Approaching
13
14
16
18
20
22
24
26
28
28
28
29
29
Analyzed in the TREND REPORT. . . 31
11

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SECTION III
Colorado
Montana .
North Dakota. . .
South Dakota
Utah
Wyoming
STATE WATER QUALITY REPORTS.
. . . . . .
Summary and Conclusions — Air Quality
Overall Regional Air Quality. . . . . .
Air Quality Standards . . . . . . . . . . . . . . . . . . .
Analyt1cal Procedures—Air . . .
Air Quality Non-attainment Areas . .
SECTION V
STATE AIR QUALiTY SUMMARIES
35
State Air Quality Summaries
General Description
. . 135
Colorado
Montana
North Dakota
South Dakota. . . .
Utah
Wyoming
• . . I I • •
• I I I • S •
• I S I
• . S I I S
• I I • S
• 5 . I S S
SECTION IV
. • S
I •
S S
S S S
AIR QUALITY REPORT
38
53
64
77
93
102
113
114
125
127
130
136
146
• S * S S S I I 5 154
I I I I I I I I I 157
• • . 161
• • . . . . . . . 169
• .
• I
• I
iii

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APPENDICES
Water
A. Severity Curves for Water Quality Parameters 175
Air
B. National Ambient Air Quality Standards 179
C. Breakpoints for Pollutant Standards Index 181
0. Procedures Used to Determine Status 183
E. National Aerornetric Data Bank - State
Inventory by Pollutant 189
iv

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LIST OF FIGURES
Figures Page
Water
1. Stations where WQI values for Fecal Colifonn Bacteria
approached or exceeded critical levels for at least one
month during 1978. . . . . . . . . . . . . . . . . . . . . . 15
2. Stations where WQI values for Nitrogen approached or
exceeded critical levels for at least one month during 1978. 17
3. Stations where WQI values for Phosphorus approached or
exceeded critical levels for at least one month during 1978. 19
4 StatIons where WQI values for Total Dissolved Solids
approached or exceeded critical levels for at least one
month during 1978 . . . 21
5. Stations where WQI values for Suspended Sediments
approached or exceeded critical levels for at least one
month during 1978 . . . 23
6. Stations where WQI values for Trace Elements approached or
exceeded critical levels for at least one month during 1978. . . 25
7. Stations where WQI values for Turbidity approached or
exceeded critical levels for at least one month during 1978. . . 27
V

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LIST OF FIGURES (CONTINUED)
Air
Air Quality Status - 1978
Parti culates
Sulfur Dioxide
Nitrogen Dioxide
Carbon Monoxide
Ozone
115
117
119
121
123
Colorado
Number of Days that Primary Standards or Alert Level
was Exceeded
Total Suspended Particulates
Carbon Monoxide
Status and Trends in Mr quality 141
Air Quality Status: Non-Attainment Areas
Total Suspended Particulates
Nitrogen Dioxide
Carbon Monoxide
Ozone
Montana
Number of Days that PriTnary Standards or Alert level
was Exceeded
Total Suspended Particulates 148
Status and Trends in Air Quality 149
139
140
142
143
144
145
vi

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Air Quality: Non-Attainment Areas
Total Suspended Particulates
SulfurDioxide
CarbonMonoxide
Ozone *
North Dakota
Status and Trends in Air Quality 166
South Dakota
Status and Trends in Mr Quality 159
Air Quality Status: Non-Attainment Areas
Total Suspended Particulates . . . . . . . 160
Utah Number of Days that Primary Standard
or Alert Levels was Exceeded
Total Suspended Particulates. 163
Status and Trends In Air Quality
Mr Quality Status: Non-Attainment Areas
Total Suspended Particulates. .
Sulfur Dioxide. . . . . . . . . . . . . .
Carbon Monoxide , , • • * • * ,
Ozone * •
LIST OF FIGURES (CONTINUED)
150
l51
152
153
164
165
166
167
168
vii

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LIST OF FIGURES (CONTINUED)
Wyoming
Status and Trends in Air Quality 171
Air Quality Status: Non-Attainment Areas
Total Suspended Particulates 172
V•1 ii

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LIST OF TABLES
Table Page
COLORADO
1. Ranking of Critical Water Quality
Stations by Pollutant Group 36
2. Station and Parameter Group Coverage. . . . . . . . 38
3. Table of Critical Stations and Parameters . . . . 44
4. Water Quality Trend Table . . . . . . . . . 52
MONTANA
5. Ranking of Critical Water Quality
Stations by Pollutant Group 53
6. Station and Parameter Group Coverage. . . . . . . . . . . . . . . 54
7. Table of Critical Stations and Parameters 58
8. Water Quality Trend Table . . . . . . . . . . . . . . . . . . . . 63
NORTH DAKOTA
9. Ranking of Critical Water Quality
Stations by Pollutant Group . . . . . . . . . . . . . . 64
10. Station and Parameter Group Coverage. . . 65
11. Table of Critical Stations and Parameters . . . . . . . . . . . . 70
12. Water Quality Trend Table . 76
ix

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Table
SOUTH DAKOTA
13. Ranking of Critical Water Quality
Stations by Pollutant Group
14. Station and Parameter Group Coverage.
15. Table of Critical Stations and Parameters
16. Water Quality Trend Table
17. Ranking of Critical Water Quality
Stations by Pollutant Group
18. Station and Parameter Group Coverage.
19. Table of Critical Stations and Parameters
20. Water Quality Trend Table
WYOMI HG
21. Ranking of Critical Water Quality
Stations by Pollutant Group
22. Station and Parameter Group Coverage
23. Table of Critical Stations and Parameters
24. Water Quality Trend Table
Air Quality
25. SunElary of Air Monitoring in Region VIII
26. EPA Non-Attainment Areas in Region VIII
27. Stations Used for Trends and/or Status Determination
Colorado. . . .
28. Stations Used for Trends and/or Status Determination
Montana
114
131
. . 0 0
137
147
UTAH
Page
77
79
84
92
93
94
97
101
102
103
106
109
x

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LIST OF TABLES (CONTINUED)
29. Stations Used for Trends and/or Status Determination
North Dakota 155
30. Stations Used for Trends and/or Status Determination
South Dakota. . . . . . . . . . . . . . . . . . . . . , . . . . . . 158
31. Stations Used for Trends and/or Status Determination
Utah * 162
32. Stations Used for Trends and/or Status Determination
Wyoming • • , , 170
x l

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SECTION
1

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INTRODUCTION
Air and water quality monitoring activities have increased substantially
in Region VIII over the past few years both in scope and frequency. These
increases are due to public demand for accurate information about harmful
pollutants in the environment and to the passage of Federal Legislation,
namely, The Clean Air Act Amendments (1979) and the Federal Water Pollution
Control Act of 1972 (Public Law 92-500). To fulfill the requirements of these
legislative mandates State agencies have planned and developed extensive
monitoring networks which have generated a mass of environmental quality data.
The purpose of this report is to present useful analytical summaries for
Region VIII of the Environmental Protection Agency utilizing environmental
quality data resident in the STORET (water) and SAROAD (air) data stc rage and
retrieval systems. This report does not attempt to classify or precisely
determine air and water quality or to analyze detailed cause and effect
relationships. It attempts, rather, to impart a sense of status and trend
(i.e. improvement, degradation, etc.), by observing air and water quality
measurements not only for current severity but also for changes over
successive time periods.
3

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SUMMARY AND CONCLUSIONS
Water Quality
Trend analyses (1975—1977 vs. 1.978) of all pertinent water quality data
available in the STORET system for Region VIII indicates that 128 of 546
stations processed experienced significant changes (improvement or
degradation) for at least one parameter group. Of those stations which
exhibited significant trends and which were also found to have concentrations
generally considered at critical levels during 1975, 1976, and 1977, 13 were
found to have improved and 42 were found to have degraded.
The changes in quality that could be mostly attributed to the affects of
man, as indicated by the stations where high ‘fecal coliform bacteria
concentrations are present, were observed at the stations listed below:
Significant Degradation
South Platte R at 60th Ave., Denver, CO
South Platte R at 88th Ave., Denver, CO
Colorado R nr Loma, CO
Arkansas R nr Coolidge, KS
Tongue R at WY-MT state line
Red River of the North nr Perley, MN
French Cr nr Custer, SD
White R nr Ouray, UT
San Juan R nr Bluff, UT
Significant Improvement
Yellowstone R at Huntley, MT
N Platte R biw Casper, WY
4

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For the non-point sources of pollution, where total dissolved solids
concentrations have been determined to be at critical levels, degradation
occurred at 7 stations in the region and improvements were noted at 3
stations. Four of these occurrences were at stations on the Arkansas and
South Platte Rivers in Colorado. Also, significant quality degradation was
detected for the suspended sediments parameter at 9 stations on the larger
tributaries of the Missouri River in Montana.
The section of this report entitled “Regional Summary” discusses in more
detail the findings with regard to specific pollutant groups.
5

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ANALYTICAL PROCEDURES - WATER
Water quality data (1975-1978) for 546 active monitoring stations in each
of the six States of Region VIII were retrieved from STORET (EPA’s
computerized water quality data base) and screened through computerized
trending techniques. Forty-six STORET water quality parameters which fall in
the general categories of temperature, dissolved oxygen, p 1- I, bacteria, trophic
potential, dissolved solids, suspended solids, aesthetics, and inorganic
toxicants were selected for this trend study and were analyzed in a two step
process. First, to describe pollution severity, a water quality indicator
(WQI) was computed for each observation of each parameter at all active
stations and averaged on a monthly basis. The WQI may vary from zero to one
hundred. A WQI less than 20 represents generally acceptable quality. The
range from 20 to 60 signifies exceedence of water quality standards/criteria
and the WQI greater than 60 represents exceedences of a severe nature.
Wherever color coded maps are used in this report, the color blue, yellow, and
red represent the respective range. Secondly, to determine pollution trends,
the 15th, 50th (median) and 85th percentile values for two time periods were
compared for each parameter with sufficient data. A standard statistical
test, requiring at least six observations for a parameter in each time period
was used to test for a significant difference between the two time periods.
Significant changes in the 50th percentile measurements are generally
indicative of overall changes in concentrations, while significant changes in
the 85th percentile measurement (15th percentile for dissolved oxygen) are
generally indicative of changes during critical periods. The criteria for
determining improvement or degradation is described in a later table.
6

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Severity Analysis
Water quality indicators (WQI’s) were computed in order to assess the
relative severity of a pollutant group at a given monitoring station. Each
parameter concentration was graphically converted to a WQI and averaged on a
monthly basis. This technique attempts to relate the concentration of various
water quality parameters to a common numerical scale and is accomplished
through the use of several “severity curves.” These curves which relate
concentration to WQI values were developed by the staff of EPA’s Region X and
exhibit the same general family characteristics and shape of the traditional
curves which were developed for use with the original National Sanitation
Foundation (NSF) Water Quality Index. Severity curves used for this analysis
appear in the appendix.
Trend Analysis
The statistical test (“The Median Test,” Practical Non-Parametric
Statistics W.J. Conover, John Wiley & Sons, Inc., New York, 1971, pages
167—172.) that was used to analyze water quality trends is a non-parai tric
technique for testing the hypothesis that random samples from two or more
populations have the same median. The test is a special application of a
chi-square contingency table test with fixed marginal totals. The same test
can be used against other percentiles than the 50th but the discusssion here
describes only the median.
7

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Given k populations each with a random sample of size n 1 , i=1,2---k, a
test statistic can be constructed to test the hypothesis:
H 0 : all k populations have the same median.
HA: at least two populations have different medians.
The test statistic is computed from the 2xk contingency table:
Samrle
1
2
3
. • . k
Total
Median*
Median*
011
021
012
022
013
023
• Olk
• 0 2k
a
b
Total
i
n 2
n 3
• . .
N
/ n 4 a\ 2
N 2
ab
* Refers to overall median of the combined samples.
8

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The test for the statistic assumes:
The samples are random.
The samples are independent of each other.
The measurement scale is ordinal.
If all populations have the same median, they have the same
probability of an observation exceeding the median.
A large sample approximation is used to approximate 1. The critical
region of approximate size d corresponds to values of I greater than x 1 -
the (1-a) quantile of a chi—square random variable with k-i degrees of
freedom. If I exceeds x 1 reject H 0 ; otherwise accept H 0 . The author
notes that the approximation may not he satisfactory if more than 20% of the
n are less than 10, or if any of the n 1 are less than 2. It further
qualifies this rule of thumb for larger numbers of samples k.
The test was applied to each pollutant parameter at every station in the
Region not only for the median but also the 15th, and 85th percentiles. Data
observed during the years 1975 through 1977 comprise one test population and
data from the year 1978 made up the other population. Each sample was
required to have at least six observations. This technique made it possible
to detect statistically significant differences between the two time periods.
9

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The following procedures were used to determine if the observed
significant differences represented an irnproverrient or a degradation:
Examine the 15th and 50th percentile for dissolved oxygen - for all
other parameters examine the 85th and 50th percentile.
If a significant difference between two time periods for either of
the percentile statistics exists and both percentile statistics
decrease from the first time period to the second, designate this as
improvement. (For oxygen this is a degradation).
If a significant difference between two time periods for either of
the percentile statistics exists and both percentile statistics
increase from the first time period to the second, designate this as
degradation. (For dissolved oxygen this is an improvement).
It was assumed that the samples were random and independent of one
another. Given that these data are time series data, taken at irregular
intervals, affected by seasonal cycles, etc., certain modifications of this
technique might be advisable in future applications.
10

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SECTION II
REGIONAL WATER QUALITY SUMMARY
ii

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12

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REGIONAL OVERVIEW OF WATER QUALITY
A Summary of Parameter Groups at or Approaching Critical Levels
The color coded regional map displays that appear in this section
generally describe problem areas identified through computer analysis of
each parameter group. After all pertinent 1978 data resident in the national
STORET data bank were screened they were converted to water quality Indicator
(WQI) values. WQI’s range from 0 to 100 where a value of 20 represents
parameter concentrations equivalent to the water quality standard or criteria
and a value of 60 IndIcates concentrations at some level of severe Impair-
ment. In the graphic representations stations where WQI levels are
between 45 and 60 appear as yellow dots and levels greater than 60 appear as
red dots. The regional maps showing severity are generated from the Table
of Critical Stations and Parameters in the section titled, “State Reports.”
The section on state reports also contains tables of Station and Parameter
Group Coverage for each state. It should be recognized that even though
problems may exist in areas where insufficient data were collected, no
problem condition was reported. Since few occurrences of a critical nature
were noted for temperature, dissolved oxygen, and pH, no maps are presented
to describe these groups.
13

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Fecal Coliform Bacteria
The map on the facing sheet illustrates the general locations of the water
quality monitoring stations contained in the Table of Critical Stations and
Parameters .
Below are listed the most critical stations in the region. Fecal coliform
bacteria WQT values for the States of Montana and Utah were based on USGS data
only.
g. WQI
1. Whitewood Cr at Pluma, SD 100
2. Whitewood Cr nr Deadwood, SD 100
3. Cache La Poudre R nr Greeley, CO 57
4. Red River of the North at Fargo, ND 49
5. S Platte R at Henderson, CO 47
6. St Vram Cr blw Longmont, CO 46
7. Whitewood Cr nr Whitewood, SD 44
8. Fountain Cr blw Colorado Springs, CO 43
14

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Figure 1. Stations where WQI values for Fecal
Colifortn Bacteria approached or
exceeded critical levels for at least
one month during 1978,
15
Fecal Cohform

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Nitrogen
It is generally apparent from reviewing the Table of Critical Stations and
Parameters that stations having fecal coliform problems also have nitrogen
problems. The table also suggests that nitrogen problems are more pronounced
during low streamflow conditions.
Below are the stations that had the highest WQI values for nitrogen in the
region:
Avg. WQI
1. Fountain Cr blw Colorado Springs, CO 63
2. Cache La Poudre nr Greeley, CO 62
3. S Platte R at 60th Ave., Denver, CO 59
4. Belle Fourche R nr Sturgis, SD 53
5. Big Thompson R at Mouth, CO 50
6. Little Thompson R nr Millikin, CO 49
16

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Figure 2. Stations where WQI values for Nitrogen
approached or exceedec critical levels
for at least one month during 1978.
17

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Phosphorus
High phosphorus concentrations are prevalent in the region. Phosphorus
loadings, like nitrogen, are both man—made and natural. Examination of the
Table of Critical Stations and Parameters indicates that water quality
stations located downstream of municipalities exhibit a constant loading
inflow whereas the stations in the remote areas are subject to seasonal
variations.
Below are the stations in the region with the highest phosphorus WQI
values:
Avg. WQI
1. S Platte R at Henderson, CO 100
2. Big Sioux R at Brandon, SD 100
3. S Platte R at 88th Ave., Denver, CO 99
4. Jordan R at Newstate Rd, SLC, UT 97
5. Big Sioux R at Sioux Falls, SD 96
6. Fountain Cr biw Colorado Springs, CO 95
18

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U? N
__I -
Is
Phosphorus
At or approaching critical levels
• Above critical levels
Figure 3. Stations where WQI values for Phosphorus
approached or exceeded critical levels
for at least one month during 1978.
19

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Total Dissolved Solids (TDS )
High TDS concentrations are prevalent in the lower elevations of Region
VIII where surface geologic formations are sedimentary. Hydrology affects the
contribution of TDS to surface waters in the form of variable precipitation
and the attendant Surface—ground water interrelationships.
Stations having the highest IDS WQI values in the region are as follows:
Avg. WQ.L
1. Mizpah Cr at Olive, MT 92
2. E Fork Armells Cr nr Colstrip, MT 84
3. Salt Cr nr Sussex, WY 84
4. Arkansas R at Lamar, CO 83
5. Malad R nr Plymouth, UT 79
6. Arkansas R nr Coolidge, KS 79
20

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Figure 4. Stations where WQI values for Total
Dissolved Solids approached or
exceeded critical levels for at least
one month during 1978.
21
Total Dissolved Solids

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Suspended Sediment
Characteristically, the locations with high concentrations of suspended
sediments are also those locations where high total dissolved solids
concentrations occur. The Table of Critical Stations and Parameters
illustrates that high suspended solids occur during high streamflow conditions
and high TDS concentrations generally occur during low streamflow conditions.
The stations in the region that exhibited the highest WQI values for
suspended sediments are:
WQ I
1. Powder R at Arvada, WY 100
2. White R nr Oacoma, SD 93
3. Belle Fourche R nr Elm Springs, SD 91.
4. Little Missouri R nr Watford, ND 89
5. Powder R at Moorhead, MT 87
6. Missouri R nr Culbertson, MI 83
22

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• Above critica’ leve)s
Figure 5. Stations where WQI values for Suspended
Sediments approached or exceeded critical
levels for at least one month during 1978.
23
Suspended Sediments

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Trace Elements
During 1978, a few trace element concentrations exceeding criteria were
detected in the region. Those stations where the highest WQI values were
determined are as follows:
WQI
Uncompahgre River at Ridgway, CO (Cu= 78)
Fountain Creek at Pueblo, CO (CthlOO)
Clear Creek above Golden, CO (Pb 78)
Redwater River at Vida, MT (As400)
Red River at Emerson, Manitoba (CN100)
Little Missouri River nr Watford, ND (Cu100,
Cr= 68,
Zn= 65 )
Heart River at Mandan, ND (CN=100)
Extremely high concentrations of cyanide as indicated by a WQI value of
near 100 were predominate in the Red River of the North in North Dakota and
Canada. Refer to the Table of Critical Stations and Parameters in the section
entitled “State Reports.”
24

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Figure 6. Stations where WQI values for Trace
Elements exceeded criteria levels
during 1978.
25
Trace Elements
( Th t or approactnna cr’lcaI evels
• Ahnve critica)

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Turbidity
The Table of Critical Stations and Parameters indicates that WQI values
for turbidity generally parallel those for suspended sediment and that the
occurrences are most pronounced in the lower elevations of the region.
Organic and inorganic constituents make—up this pollutant component and the
susceptibility to be transported with relative ease by overland runoff
(non—point source) is very apparent as represented in the tables.
The stations in the regions where the highest turbidity WQI values were
observed are:
Avg. WQI
1. Powder R at Moorhead, WY 86
2. San Juan R nr Bluff, UT 75
3. Arkansas R nr La Junta, CO 73
4. Missouri R nr Williston, ND 70
5. San Rafael R nr Green River, UT 70
6. Colorado R nr Loma, CO 66
26

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Turbidity
At or ap?roaching critical lcvelc
Aoove critical levels
Figure 7. Stations where WQI values for Turbidity
exceeded criteria levels during 1978.
27
U A N

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Temper ature
Only a few scattered occurrences where temperatures were found to he in
minor exceedence of standards were observed. These occurrences were all in
the months of June, July and August; eight were in South Dakota, three were in
Utah and one was in Wyoming. One station on the South Platte River at
Julesburg, Colorado, exhibited a WQI value during the month of July that
approached the critical level.
Dissolved Oxygen
The 88th Avenue station at Denver, Colorado, exhibited WQI values that
exceeded standards as well as some that were above critical levels. There
were three other minor exceedences in Colorado. Seven minor exceedences of
standards occurred in Montana. Critical levels were observed for the winter
months at stations along the Souris River in North Dakota, the James River in
North and South Dakota and the Big Sioux River in South Dakota.
Minor exceedences of standards were noted for the upper Arkansas River in
Colorado presumably during the start of the runoff in April. The Big Thompson
River had a WQI approaching the critical zone during the month of January. A
critical WQI value was calculated for the month of June at the Verendrye,
North Dakota station on the Souris River. Levels approached a critical
concentration on the Cheyenne River near Plainview, South Dakota during
October. Minor exceedences of standards were found for the Shoshone River
below Buffalo Bill Reservoir in Wyoming during the period August through
October.
28

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Un-ionized Ammonia
Water Quality Indicator values for un-ionized ammonia were determined at
each station where the STORET parameters, total ammonia (NH 3 -N), temperature
and pH were observed for the same water sample. The calculation procedure is
described in William 1. Willingham’s 1976 report, “Ammonia Toxicity.”
The following stations exhibited ammonia concentrations at or near
critical levels for at least 3 months of the year in 1978:
Avg. WQI
1.. South Platte River at Henderson, CO 36
2. South Platte River at 88th Ave., Denver, CO 46
3. Fountain Creek biw Colorado Springs, CO 32
4. San Miguel at Confluence Dolores R, CO 43
5. Big Sioux at North Cliff Avenue, SD 33
The Souris River near Westhope and near Verendrye exhibited exceptionally
high WQI values in the months of June and July, 60 and 70 respectively.
Amonia standards violations occurred at numerous other stations
especially near urban communities. The findings will be the subject of a
latter report.
Trophic Status
Nitrate and phosphate data are collected at numerous sites in this region
but no definitive standards or criteria have been found generally acceptable
or been adopted for them. The most notable adverse effect of these compounds
(other than deleterious effects, caused by resultant nitrites when nitrates
are chemically reduced) occurs when they are mutually present and provide a
nutrient support for trophic conditions.
29

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An attempt was made to determine trophic potential wherever nitrates and
phosphates were observed in a common water sample. The analytical procedure
involved (1) finding the ratio of nitrogen to phosphorus —- if the ratio were
greater than 12 a phosphorus limited condition was assumed -- for a ratio less
than 12 a nitrogen limited condition was assumed, (2) comparing the WQI of the
limiting parameter to a harmonic function of the combined phosphate and
nitrate WQI and reporting the smaller of these two values as the WQI for the
corresponding trophic potential.
2 (phosphate WQI) (nitrate WQI ) vs. phosphate WQI (P-limited) or
phosphate WQI + nitrate WQI nitrate WQI (N—limited)
High trophic potentials occurred most frequently on the South Platte
between Denver and Julesburg, on the Arkansas River between Pueblo and La
Junta, the Jordan River between Bluffdale Road and New State Road, the Souris
River near Verendrye, the Red River between Fargo and Grand Forks, and the Big
Sioux River at several stations between Watertown and Richiand, South Dakota.
30

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STORET Number Criteria/Std .
STORET Parameter
10
11
300
400
29°C
29 oC
5 mg/i
6.5—8.5
STORET Parameters and Pollutant Groups Ppalyzed
in the TREND REPORT
Group
Temperature OC
Temperature 0 P
Temp.
D.0.
DO —
pH
pH
Fecal Coilform
31616
200
“
31615
200
Fecal Coil.
ev
‘ ç
9pfl
Total Coliform
U
31501
1000
Total Coil.
31505
1000
NO 2 NO 3
630
0.6 mg/i
N0 3 —N
620
“
Nitrate
71850
“
Nitrate
71851
“
Total Phosphate
665
.05 mg/i
Trophic
Total Phosphate
666
“
Ortho Phosphate
70507
“
Ortho Phosphate
660
.09 mg/i
Die. 0.—Phos.
671
.03 mg/i
TurbidIty
70
25
Turbidity
76
25
AesthetIc
Oil & Grease
550
2
Dissolved Solids
70300
500 mg/i
I ,
515
“
“
70301
“
Die. Solids
Conductivity
95
750 pmho
Suspended Solids
530
25 mg/i
“
70299
“
Suap. Solids
“
80154
“
Arsenic Die.
1000
50 j ig/i
“ Total
1002
50 iig/l
Cadmium Die.
1025
3 “
Cadmium Total
1027
3 “
Chromium Die.
1030
50 “
U Total
1034
50 “
Copper Die.
1040
20
“ Total
1042
20 “
Metals
Lead DIe.
1049
30 “
“ Total
1051
30 “
Zinc Die.
1090
80 “
Total
1092
80 “
Mercury Die.
71890
0.5
“ Total
71900
0.5
cyanide
Un—ionized N8 3
720
619
.02 m /l
.02
“
608
.02 “
Inorg. Tox.
“
610
.02 “
31

-------
32

-------
SECTION III
STATE WATER QUALITY REPORTS
33

-------
34

-------
STATE WATER QUALITY REPORTS
This section is comprised of four major tables. The table, Ranking
of Critical Water Quality Stations by Pollutant Group is a sumary of
stations where the highest WQI values were noted.
The table, Station and Parameter Group Coverage lists the active
water quality monitoring stations in the state and a count of the number
of data observations for each parameter group present in the STORET data
system for the year 1978.
The Table of Critical Stations and Parameters utilizes the WQI calcu-
lation procedure to determine and display monthly standard exceedences by
pollutant group and station location. This table of pollution severity
also provides the average yearly WQI calculation for critical stations and
a ranking factor for each station and parameter group. A ranking of 1
defines the station at the highest critical level In the State. This table
reports on 1978 data only.
The Water Quality Trend Table lists stations where parameter groups
exhibited significant changes over time as determined by statistical tests.
This table shows quality improvement or degradation In each parameter group
and points out those groups which are at or approaching critical levels.
Data for 1975, 1976 and 1977 were trended against data for 1978 in
determining this table.
35

-------
Col orado
Table 1. RankIng of Critical Water Quality Stations by Pollutant Group
Dissolved Oxygen WQI*
1. S Platte R at 88th Ave., Denver 41
Fecal Coliform Bacteria
1. Cache La Poudre nr Greeley 57
2. S Platte R at Henderson 47
3. St Vram Cr hiw Lonqmont 46
4. Fountain Cr blw Colorado Springs 43
5. S Platte R at 88th Ave., Denver 40
6. Little Thompson R nr Milliken 39
Nitrogen
1. Fountain Cr biw Colorado Springs 63
2. Cache La Poudre nr Greeley 62
3. S Platte R at 60th Ave., Denver 59
4. Big Thompson R at Mouth 50
5. Little Thompson R nr Milliken 40
Phosphorus
1. S Platte R at 88th Ave., Denver 93
2. S Platte R at Henderson 100
3. Fountain Cr biw Colorado Springs 95
4. S Platte R at 60th Ave., Denver 85
5. Boulder Cr at Boulder-Weld County line 80
Turbidity
1. Arkansas R nr La Junta 73
2. Colorado R nr Loma 66
3. Gunnison R nr Grand Junction 57
4. Arkansas R at Las Animas 51
5. Uncompahgre R at Delta 53
Total Dissolved Solids
1. Arkansas R at Lamar 83
2. Arkansas R nr Coolidge, KS 79
3. Arkansas R biw John Martin Reservoir 67
4. Dolores R abv San Miguel R 67
5. Arkansas R at Las Animas 62
6. Little Thompson R nr Milliken 55
36

-------
Colorado
Table 1 (continued)
Ranking of Critical Water Quality Stations by Pollutant Group
Suspended Sediment WQI*
1. Colorado R nr CO-UT state line 68
2. Little Snake R nr Lily 68
3. Arkansas R nr La Junta 66
4. White R nr Watson, UT 64
Trace Elements
1. Fountain Cr at Pueblo Cu100
2. Clear Cr abv Golden Pb= 78
3. Uncompahgre R at Delta Cu= 78
* Average annual water quality indicator (WQI) value. A range from 20 to
60 signifies exceedence of water quality standards/criteria and the WQI
greater than 60 represents exceedences of a severe nature.
37

-------
71 Cr! t .’e 001 1 flQ
Sit PIAT SO FPV CHFF ’44 ’ t t’S fl TI:
(‘01117
SO PIAT SO EPN APV rniF CF
0o17 07
SO PIAT 1 P’( PI, PA T1 Y ronss’o
)1C t O,00t ( 1 0 0075
St1ttT i PTATIF RT\’ ( p TC 3(1 11TH Pr
7ICflflPIT ( 101 10!
SI) AT THTAI( .cT UCr’T0F
7irn r,nni (100024
SItI!T14 PI..ATTt. APIIVF t1TT )i-Tfl I
1 513
5f t’I’4P P.ATT14 P ItT POWIES AVF?!IF
74r 00 14 0p 1091
SI1”T! P1.ATTI P AT PAPTMUuT I AuF
? lCnrtHPP 0699
J4 Pt,ATfl P AT A1A FrA AVF 1!IE
2 Irnnri Op 03(15
Sr)t’TH P lATTE P 19Th ST uplrr;F’
? IC I 1 OH’W 00(11
Sfl PYATIF P A FflAt T,TN ST PP1 (1(t
71r1WF.1’P ( ‘0 (40(12
S PlATTE 60TH AVE MDSN 0. 2
21rn’ :Tw (1(10004
5 Pt Tr I PPTF 1 AVP MrSrp uo 1
2lC i t’ Tp 0(1001(1
50)1114 PYATTE 124TH
?tCfl! 0fl1 000073
S0! )TU PYATTE AT PEt’OFPST ’
11? 1 , Pfl (1 1 477 ( 150( 1
SD ! r TItTTF WTV ’P AT o
21r 0T.o0l 00(1072
.50 12TH PIATIF: PPAP KEPSEY
tl2wPn (114754000
S(ITITP P1A7T PTVFP VFp 5.rq,
117WP0 06758500
SOOT!’ PlATTE R I VEP MP4P 4 OQ A
427-PP °67 1 4 ( ’r ’r ’0
5011114 PLAT1 F PIVF P / tT PA! 74C,
7tCflTfl I41 000178
•Sf) 11T14 PTIITTF !IFIflW 5TFPtT’jC
? lrr )rno1 000070
SI1UTH P!ATT ’ P ( T N IlP45V . ) C P 1II VSl
Of .7A4 0 1 t ( ’
SI IIITLI PlATTE PTVFP AT 10! 5I
Ij7 t P !) ( 17 647rn
50) 1714 D1ATT . TV 9 TIFAP flt4f’5nrlp
070002
511 14 T14 PlATTE I4TVFP 4T 101 S10-’
T bIe 2. STAUCU AND PARAMETER GR0!J :OVERAGE.
Water Quality Data For Year 1978 - o lorado
FFC.. !
TJ5
SU 5P
T (’ P 00 P 14 rot 0 1T PUnS TUD4 snrjr S04Jr) rIftl ‘ F’ 4J5
5
5
5
5
5
4
3
9
4
5
17
114
16
16
I
14
tO
16
10
16
15
45
1
1
98
499
1
2 &
I
I
1.
1
1
1
1
2.214
1
1
14
14
14
.
7
15
14
7
14
16
16
16
45
14
10
¶6
11
18
15
It
15
15
15
¶5
II
8
16
11
14
14
18
71
15
18
35
16
74
114
19
34
314
57
S
5
5
4
4
3
S
11
5
4
21
S
c
S
4
(,
3
14
14
14
4
74
1?
314
12
1?
12
74
1?
36
10
17
514

-------
I I 7 ’Pn i n 1
CnT.npAnn RTV P lwl.r1 T.IKF GRA RY
117 1:Rfl 09034500
rflt.nPJlflfl RTVFR AT HOT $IJt PH’IP $ [ ‘
7 lrflI,0 01 000045
C0t.fl Aflfl PTVFR I L AP 4u1T SULFUR Pi ’ CS
i1,wRn 09076500
CoL,nPAnr RTVT!R U AP PflTSFPO, Cc .
21C 01.O0j 00fl 046
CflT,(•IRAOn RTVFR T AP fl°T FP0
I I7WPI) fl fl7t10fl
CPT,OPAno RIVFR P AP LFPIWOflO SPR
21Cnf .0 t 000047
COt.flQAflfl RIVFR AT Fb& CASTLE
117W I) 09095500
C01,OPAOO RIYFR NEAR CAMEO. CO.
2 1C01,001 000049
COT.flPAfln RTVFR NEAR CAMEO
21CnT, 00 1
CfltORAPO R1V R HEAP FRIIITA
2 lCflt.0O1 000050
CflhflRAflfl RTVFR PFAP T0M4
II2WPD 09163500
COf,OPAOO RTVF.R !‘‘AP COLI3RAOO—IITA
7 ICr l!.00I 000009
ARKAP S#S R. RFLOW f,FADV1Li E, COt.
2 IC OL O OI 000069
ARVAP!SAs RIVER UFAP SALTIIA
, lCn’nn1 000007
ARVAMSAS RIVER IFAP CANON CITY
IIPWRT) 0709 6000
AREANSAS RIVER AT CA lfl CITY. CO
II7WPF) 0709Q200
ARKANSAS RIV R N P PF)PTI AND, CO
7wRn 07 0Q94 00
ARKA’9.qAS RIVER AROYF PUERLO, CO.
2 lrrfl. 061 0Ofl0 6
ARKANSAS RIVER PJF4D p’JF9t,(1
ii rr 070995
ARI(AIISAS QTVVP HEAR PuEBLO, Coin
2ICrU.fl01 0fl 00’ 5
ARKANSAS RIVER HEAR NFPESTA
21r01, 001 nonoRn
APt 5 5 AT CATLIN C PIAU NOGT
71C 0!Ofl1 000004
ARKANSAS RIVER IVAP l . a JIIUTA
11?wRfl 07 122000
APKA’ SIIS RTVEU EAP TA JI1?ITA, CU
?1CO LOOI 000003
ARKANSAS R1VV1? AT TAS A ’P ’AS
Table 2 (Continued). STATION AND PARA?IETER GROUP COVERAGE.
Water Quality Data for Year 1978 — Colorado
STATTfl ” FECAT.
015
SUSP
TE ’P 1 )0 PH COIl NIT P1405 TUPR 51)Tjfl SOLIO NH3 FiAi.S
5
5
13
12
12
29
26
4
4
2
3
3
2
4
3
4
14
5
4
4
12
10
12
11
9
13
10
10
13
25
12
12
41
II
11
11
25
22
11
11
9
1.
10
9
12
73
11
11
30
11
10
11
26
22
3
3
2
3
3
2
3
6
3
2
P
4
4
2
3
4
1
4
9
4
3
14
13
13
9
Ii
11
10
13
26
12
12
48
I,
4
4
2
4
3
2
4
6
4
3
15
6
6
4
5
3
6
11
6
4
79
6
5
6
5
4
5
12
5
6
24
71
21
20
22
17
13
20
41
18
19
53
4
4
4
4
4
2
3
9
4
4
15
20
20
20
18
IF,
12
19
40
18
17
48
6
6
6
5
4
3
6
12
7
4
77
F,
8
12
9
5
10 11
21
24 22
C-)

-------
Table 2 (Continued). STATION AND PARAMETER GROUP COVERAGE.
Water Quality Data for Year 1978 — Colorado
c TP 1’ 1
11) )r nil 30500
flI I( , u4p: UApTtI’
“7113000
AI K’ 1 T t:: T IA AP, CO.
7lrr . .
API(A’ Sc . AT 1.AP• ( O 0
,1r.t ‘“1 000001
ARV V c L T . P tFAP Cflfll J Gt, ¶(AI 5AS
CR0003
PI° ‘ a v r- ; - ‘ vTTl,r1 c
( flfl 04
PjO tT OP ’ ? FAP WASSt ’M RN
,lC0T 1 0 0 0 0 IQ
PI ( 1’ T ‘r1 a
71cr 0 000IP
RIO (cA IST OF “AI’lASSp
PT PAO V,fl flTfl5, CO.
?lC T ‘l 000037
yr’; - ow rwn y
06620000
‘ OPT ‘ T FR ‘FAP ‘I10TPC,AT
?IC ’ ’T 00011?
Cr’ i ”c D1 P ‘FAP hAC.OTE
nA747 500
CACF A ‘ “- F RTVI R NVAR RUSTT
I17. . 0 67 520nn
CAr w I A ti:r pI- P A fl 1W CN 1 rjp
l17— ’ 067527F.o
CAC” A ‘ PF RTV 2P AT FORT Cr1
oonn
I A Pr.’ i ARflV VT C(1f bI t IS
rr ’rr’ 000176
A PLI’ ‘JF.AR FT• (T.t ,1 1 1S
117 flf’7 57 50 ’
“;rp PflrFQ ‘JEAN CREEL
00 r 027
CAC! F I A rrl’r’-w c.RF: ’r,Fy
fl F .733r 1f 10
p l c: T .’t)c PTV P AT FSTFS PARI(
I 17•.. r’ 06734000
r1tv•P c T AT YA k F FSTES, Cl i
( 1A7 3 F . 700
RIG T fl Sr’. P AflnvV DTT,T,V TIlYYJF:
RIG T’ 10 ’ . PTVk’P AT MnI!TI-l, IIFA
non
RIG THr’l ’ ’cr f R
?1Cr)Ir 1 0 ( 10124
Y.IrrT 1 Pr”p rr’j (FAR TlI 1P(F ’
r.
11
1
A
23
VFCAT flI SITSP
P0 N COIl OTT PROS TORN rItTI) SOIl lN3 MVTAT
11 72 77
15
A A S S 3 5 17 7 4 7d
24 23 71 17 15 19 IP IQ 14 4
A
A
6
7
4
2
tO
5
5
21
In
¶0
10
10
7
4
P
15
P
9
34
79
9
ii
7
11
22
15
33
12
11
56
3
3
1
2
3
1
3
A,
3
1
13
22
12
7
11
12
12
1.
77
6
6
.
6
6
3
6
11
s
6
79
76
12
12
39
71
12
12
Ii
12
39
24
12
4
4
4
4
3
3
3
6
4
3
17
17
17
17
17
15
11
iS
35
17
17
45
1?
10
12
23
25
is
is
is
15
13
P
16
31
IS
15
39
10
11
11
11
10
11
36
13
11
12
12
12
1.
12
73
11
17
23
74
17
¶7
17
17
15
Ii
17
34
¶7
17
50
l 1
17
17
IF.
¶4
II
17
34
If’
‘7
41

-------
Table 2 (Continued). STATION
1ater Quality Data for
AND PARAMETER GROUP COVERAGE.
Year 1978 Co’orado
PH
4 4 4
4 4 4
3 3 3
17 17 17
t7 17 17.
0 15
SIISP
T1JP 3 50110
801.10 PH3
1FTAt,5
4 5 3 3 17
4 8 4 4 17
3 6 3 3 13
16 34 17 17 47
17 34 16 16 47
STA FT1
TEMP D li
F ’C A 1
C i l.1
3
4
3
17
17
l1T
4
4
3
16
IS
PHflS
2
2
2
10
10
7tCrl flfl1 fl( flhl4
Prr TI Mp 5r1: P AP TMVVT,AI t
7tCi ,fl0t 000123
LJTTT .F T )M$.’.Sr . PT p !4FPTPRI)P
2ICn1.flfl1 ‘ P125
RT(; TPflrAPSf . RTVF9 L11W ESTES FAWV
000011
S I VPATt IW1.V1W t,OUr,IIPHl’
? ICP I. 0fl1 03
RoI’1 nF:P Cr . T l TMP co 1TNf.
7icn . oot 000030
Sl’ VPATI Al’ .E1.P RflhIT.,PER CO TINE
I12 i Pt 0 67774 ) 00
N ST VPP. N (R FIC AT TMNCJ’flNT PA
II7r.P!) 0672340Q
Sflt1TH ST. VRAI’I CREEK A1 flVE LYflt
117’ PD fl671 1 000
SI’. VPAT’ CREEK Al’ ?4f1U111, NEAR P
71Cr1 1,n’51 000033
CLEAR CPE IC PnVc (1t flEH
21C TMfl1
C1.EAR CREEK AT HFAT RIDO .F. C0t,Ii
,ic’Th0 4 )1 000016
rotu TATN CRECI( BELOW COI,PPADO SP
21rn 1,o4)1 000015
FOUNTAIN CP .Fk AT PUEBLO
71Cfltfli 1
FUflt’i ’AT’J CREEK NEAR HANITOII
? IC(Th0fl1 00n 052
VAr 7.F RIVER AT C.TPStJM
? lCrlf.0 01 fl 000745
EAC.L RIVER AT TflI”N F P2PWARDS
2 lcnr. 0flJ fl OflflR3
HIHESTAKE CI K a HnRNSIt VER CMP( R
RliA T’I( FORK AT “IUITP
21cn 1,o*11 fl0 0 054
(uNwISnu Sn JTHc 5T QE GPO YUNCT
2 IC O IJ I OI 000056
( UUtiISflH RTVWP FAR T)FTTA
2 IC IM 0 01 , flfl0S’7
CtlNPTSn P1V t’VST OF ( INNIS0N
N EK liE (I f! T ç0N PEI.flh PPTCHKISS
1I2KPI) • 00152500
C.flK’UTSn 4 RIVER EAP (RAN0 .JLINCTI
,trny.O 0, nnno s
fwrr)p’pAHr.PF RIVER AT UFt TA
2 IC OL O O1 000 4 )79
UPICPVPAWCRF RIVF:P Al’ PIOGWAY
9 9 9
H 8 8
IS 11 12
13 13 13
15 15 15
20 20 20
4 5 5
5 6 6
12 12 9
11 10 7
3 3 1
13 i3 10
11 11 8
4 4 2
S 5 5
3 4 2
1? ii 12
13 13 9
5 5 5
16
16
23
13 12 9
15 11 10
17 14 11
6 6 3
5 5 3
13 11 10
11 9 9
3 3 1
14 11 10
12 9 9
4 4 2
5 4 2
4 4 2
10 Ii 25
11 10 9
5 5 2
17
16
‘4
15 25
16 30
18 39
4 12
6 11
12 75
12 23
3 4
14 29
12 24
4 8
5 10
4 p
12 33
13 75
5 9
15 12 41
15 14 37
18 16 53
6 6 27
6 4 26
12 12 34
11 11 30
3 2 13
13 13 39
11 11 36
4 4 15
S 4 15
4 4 16
10 11 54
12 12 46
5 4 2?
r)
C

-------
Table 2 (Coetinu d). STATION PJ D PARAMEE GROUP COVERAGE.
Water Quality Data for Year 197 - Colorado
s-
2 1Cr . . l
‘I \‘ P V
71 CiiJ (‘J
ri t,r ui r Ni “ in- ‘r rni.np s
2 lCnT,nr1
null 9L R PT VI P A i ’vr Ci i l RIC : I TN Tl
?lCnt.0 01
SAIl M)( 1jF’ A! rr) Fr T1’l I n(r1pr 5
7 1Cfl1O1)l “0010 1
SP ” NJ ( uFl D#•tiR ‘li)P. F1llfl
1I7 Pl) 09177000
SA’4 h4I tJrt PTV R AT “PAV AII • C D.
11?t P D 09177100
SA’ 4 Ml( UFf. PTVrP 1 1FT,0 IIRAVPI’I , C
47 flfl
WIITTF RIVER APOVE COAl CREFE, 1Jf
t12’ Pfl
WI4TTE RIVER eFY,ti’4 “KER. CO.
I12 I UP 09306300
HtTE RIVER AR(1VE PANGEIY, CD.
¶ 1? l ’Pr, 1)9306500
WRITE P JR I .ATSOM II
7 IC O! .nO1 000043
WHITE RIVL’R AT NEF1( P
21C 01,00l 1)00044
WHITE P JER AT RAT c1:!y
21C0T.0fl1 ( O 117
Wp I1’ PflTEP 0110W PICEANC1 CRK.
71CnT.c” I 000039
YIIMPA 9TVl:P AT # Jl,l.IFP
71C(1T0 01 00 (1)39
VAWPA piV,:p T1FAP ‘AYPErL,
?1COl 0O1 0001)41)
YAMPA pEr ow T V’rIF. SVAKF pIv p
7 1C11TO 01 flO4l
lITTlE SNAEE 490VV iTt,Y
2 1Cn 1, 0 01 0001)99
y up AROVF OAK CREEK COVEt ENCF
112wP0
YANPA 93 VEP I IFAR NAYRFT,l, CU.
II?WP r) ‘ l976 00 0 1)
1 ITTtF SNAKI: RIVER NEAR lilY. Cfl
7 ICI IT, 0 0l 0001)63
SAP •lItArJ RIVER I EAP STATE ITlIF
71(0 1001 (700069
SAil •lHAk A ”VE t’AVA Tfl QFSFPV(1I P
7 lCmofl i
SAN ,TIIAIi UT\iE i RF:l.m PA(flsA
71Ciru1 O ”flH AQ
PIEPPA l TVEP ‘IP C7 APPDLF I. ChIli
r ’ -i p- 1 j
015 SIISp
ITT pIlf lS TI: i - In Snr Ir’
I
3
1
3
5
3
7
7
4
4
4
5
S
7
4
5
5
24
I I
10
11
Ii
7
6
10
19
P
3
9
9
9
9
9
4
0
15
9
9
26
4
3
4
4
4
1
4
P
S
2
17
16
14
16
5
13
1(4
13
17
11
13
14
14
14
3
13
13
13
33
11
13
9
0
12
12
1.
1?
1.
72
1?
12
29
12
12
12
12
12
74
32
12
79
1
6
2
4
14
4
21
10
4
14
4
4
2
4
4
2
4
9
4
4
15
4
4
2
4
4
7
4
9
4
3
15
4
4
2
4
3
2
4
4
4
15
A
6
4
5
4
3
5
10
S
4
71
4
4
2
3
4
2
4
9
4
4
11
4
4
7
4
4
2
4
9
4
4
15
4
4
2
4
4
2
4
9
4
4
14
4
4
2
3
4
2
4
7
4
3
15
12
9
12
7
17
24
17
13
6
12
41)
(7
M
1?
7
¶2
24
12
33
61
12
4.
4
4
4
4
4
2
4
9
4
4
20
3
4
3
3
4
2
4
10 .
5
4
74
S
S
5
4
3
9
10
3
4
72
A
5
‘
5
4
2
3
¶0
5
4
73

-------
Table 2 (Continued). STATION AND PARNIETER GROUP COVERAGE.
Water Quality Data for Year 1978 — Colorado
fl T I P
t1? P 09341200
! flf y cn K P F0PA PTVF.R tR p4(;o
71Cn1, 0 0l
InS P7”flS PIVEP 1FAR 1ARr CA
7 lCnT0O1 O00nc 6
T 5 PTVFR fl AP POT4OAO. (‘01.
21r 01nflt 0000Ri
t’ 5 1VER APOYF Ol1R *N( O
?1rnLo 1 (‘COOP?
AHT S PTV W PJFP 1 P S1IVFRTUN
?tCr’t,flfll 000065
t,A PL TA P NORTH OF l .A PLATA
) IrC OOflt 00 0jfl4
I,A PLATA PTVFP AT HIcHWAY 160
,irrit.flOl 000064
UA Cn5 RTVEP 3 ‘4T1,FS NORTH OF STATE LINE
?trr’ I,Ofl l 000103
u g(’ns RIVER AT MAP4C ( ’S
FECAL .
flIs
susp
1’ ’UP D I ) PH (‘01.1 NIT PHtS ‘rupo SOfIR SOLTO p 43 ‘IFTALS
S 3 4 4 2 3 8 4 4 19
5 4 5 5 6 2 6 11 7 4 72
5 5 5 5 5 4 4 4 5 21
5 5 S 5 5 4 4 8 4 5 20
4 3 4 4 5 1 S 10 6 3 15
4 4 4 4 5 1 5 10 6 3 16
4 4 4 4 4 2 5 8 4 5 73
6 6 6 6 2 6 12 6 6 74
CA)
C-)
Q
I-

-------
Tab’e 3 * TABLE OF CRITICAL STATIONS AND PARNIETERS.
T iiperature, DC, and pH only)
Above critical levels
44
STATION
JAN FEBIMARAPRM YJUNJULAUGSEPOCT OVDE
Tecnoerature
.
S Platte Rat Julesburg
0
—
Dissolved Oxyoen (DO)
1
Platte R at 88th Ave., Denver
S X X
X, X — X — — - -
41
__
S Platte R at 124th Ave., Denver
- x - — — —
Uncornpahgre R at Delta
—
———
0
I

—
Little Snake P nr Lily
X
1
H
I
Arkansas R nr Canon City
LX
X
I
Arkansas P nr Portland
Arkansas P nr Neoesta
L
Arkansas P at Catlin Canal
x i i
Rio Grande R nr Manassa
0
—
x
:
Big Thompson P nr Mouth
I
—
Animas P nr Sllverton
0
Fecal Colitor n Bacteria
:
S Platte R at 60th Ave., Denver
— 0 I 0 - -
5
S Platte P at 88th Ave., Denver
0 I
0
— :0 — —
40 5
S Platte Rat Henderson
S Platte Rat Kersey
—
— —
— S —
36

S Platte R blw Sterling
—
— 0 — * — —
Colorado R hr Fruita
—
0
— — — —
- Colorado P nr Loma
- —
— —
30
Arkansas R nr Nepesta
— —
0 5
20
Arkansas P. nr La Junta
0 0 —
31
——
ArkansasRatLasAnimas
:
Arkansas P nrcoolidce, KS
S
22
C teLa Ppud nr F L rôllin
— I!
. 4
X Minor exceedence of standards (for
At or approaching critical
levels
— Insufficient data

-------
Table 3 • TABLE OF CRITICAL STATIONS AND PARAMETERS.
X Minor .xce,denc. of stanuirds
o At or approaching critical
levels
COLORADO
STATION — -
JAN FEBLMA APR
RKG
jecal Coliform Bactmria Coritinumd
Cache La Poudre nr Greeley
•
I
—
I i
• —
57
1
gThompsonRblwEstesPark
—I———
—
0 —I
— —
.
Big Thompson P nr Mouth
—
0
0 0
0
—

Little Thompson R nr Milliken
—
—
—
0
0
0 0
39
6
St Vram Cr biw Longmont
Boulder Cr at Bldr-WeJd Cos
Clear Cr at Wheat Ridge
Fountain Cr blw Colorado Springs
— —
— -
f
0
— 0
ifQ
I —
10 • -
0 • •

•
AL

21
43
4
Fountain Cr at Pueblo
—
1
19
Gunnison R nr Delta
Uncompahgre R at Delta
Dolores R abv San Miguel R
j_

•
—
0
0
22
Little Snake P nr Lily
—
0
‘
18
San Juan R biw Pagosa Springs
0
Animas P nr Silverton
Nitrate
SPlatteRabyLittleton
S Platte R at 60th Ave., Denver
00--
• • 0 0 • j 0
:


59 3
ii__ -
S Platte P at Henderson
S Platte P nr Kersey
o
•o
tolorado R nr L ia
0
J
:
17
Arkansas R nr SalIda
0
—
—
Arkansas R nr Pueblo —
Arkansas P nr Nepesta
Arkansas Rnr La Junta
0
• —
•


:


29
3
6
Arkansas R at Lamar
•
—
Arkansas R nr Coolidge) KS
0
22
N Platte P biw Cowdrey
—
•
— —
I
Cache La Poudre nr Ft. Collins —
.‘
:
I
—
—
48
Cache La Poudre nr Greeley
•
— 0 - 0 0 ._
! _.
!
(for T n erature, bC, and pH oniy
• Above critical levels
— Insufficient data
45

-------
Table 3 • TABLE OF CRtTICAL STATIONS AND PARAI 1ETERS.
X Minor exceedcice of stanoards (for
At or approaching critical
levels
STATION
JANFE8M4RIAPR? AYlJUNJUL UG SEPOCT OV DEC
ô
L
Big Thompson R at Mouth
.
-
I 0 -
——
50
4
Little Thompson R or Milliken
•
•
•
—
-
0 —
49
5
St Vram Cr biw Longmont
•
— 0
42
Boulder Cr at Bldr-Weld Cos
0
I —
31
Fountain Cr biw Colorado Springs
• — I SI
63
1
Fountain Cr at Pueblo
—
H
•
— 0 — 0
Unconipahgre R at Delta
San Miguel R at Mouth
1 •
• •
—
0 •
1!
:

29
?at oa R at Mimer
0
Yan pa R nrMaybell
I iIIILI1_
•
Phosphorus
1_I
S Platte R at 60th Ave., Denver
•
•
•
•
•
•
•
S S I
S PlatteRat . 58th Ave., Denver
S Platte P 124th Ave., Denver
S Platte P at Henderson
— —
• !__._ - —
— — —
I — • • —
!_
100
..L
2
S Platte P nr Kersey
Colorado R nr Loma
——-1-0
0
0 — — •

71
16
—
— Arkansas R nr Nepesta
Cache La Poudre or Ft. Collins
— —
—
S
0 0
0 1
42
1
Cache La Poudre nr Greeley
Big Thompson R or Mouth
— —

—
1
0
I
0 0
62
34
St Vram Cr biw Longmont
0 1 I
Boulder Cr at Bldr-Weld Cos
• • I
80
5
Clear Cr at Wheat Ridge
Fountain Cr blw Colorado Springs
Fou tainCratPueb1o
1
— 0
5 1 •
:0
L

33 b
—

- Gunnison P nr Grand Jct
0
:
—
San Miguel R at Uravan
1 0
14
J____________
- S n 4i uel R blw Jravan
0
- -—
T perature, DO, and pH only)
bove critical levels — Insufficient data
46

-------
Table 3 • TABLE OF CRITICAL STATIONS AND PARAMETERS.
X Minor exceedenCe of stanoards (for T nperatu ’e
o At or approaching critical
levels
COLORADO
— STATION
JAN FEBMARAPRIM YJUNJULAUGSEP0C7 0V DEC
hn ohnr jc C tin,ipd
,
15
White R abv Rangely
•
27
Yampa R nr Maybell
Little Snake R nr Lily
0
Turbidity
S Platte R nr Kersey
S Platte R biw Sterling
St Platte P nr Juleshurg
oradôRnrDotsero
Colorado R at New Castle
Colorado R nr Cameo
_ _
I I.
—


—
.


—
— :
-

19
i
Colorado R nr Fruita
to]oradoRnrLoi ia
Arkansas R nr Canon City
— •i — •

—
0
•
:
Arkansas R nr Nepesta
0
•
—
•
43
.Aricansas P nr La Junta
R at Las Animas
o • —
I
•
•
S
• I •
•
• — •
-
73
1
Arkansas R at Lamar
R nr Coolidge, KS
•

—
•
•
•
—
I
—
—
0

41
44
19
Cache La Poudre P nr Greeley
1
5
Thompson P. nr Loveland —
I
.
Thompson P nr Mouth
— —
0
30
Jd ]e Thompson P nr Milliken_
StVrain Cr blw Longmont
Boulder Cr at Bldr-Weld Cos
— —

;
0 I


I
0
.
‘
35
34

I
ntain Cr blw Colorado Springs
•
f uri ain Cr at Pueblo
.
Untain Cr nr Manitou
28
EagleRatGypsum
Roaring Fork P at Mouth
0
—
• D C, and pH only7
• Above r1tical levels
— r.sufficier.t data
47

-------
Table 3 TABLE OF CRITiCAL STATI0N AND PARAj IETER5,
X Minor exceed.cnca of stanoards (for Tenperature, DO, and pH only)
a At or approaching critical • Above critical levels
levels
48
STATION
JAN FE5M, APRM YJUN JUL UG SEPOCT N0V DE
KG
Turbicitv Continued
Gunnison R nr Delta
Gurnison P nr Grand Jct
S
• • 0 :0
3
N Fork Gunnison biw Hotchkiss
•
Unconipahgre R at Ridgway
I
Uncornpahgre R at Delta
•
I
53
Dolores Rat Gateway
!
•
Dolores P abv San Miguel
0
•
•
I
—
— —
41
San Miguel R or Norwood
22
San Miguel P at Uravan
5
San Miguel P biw Uravan
!
20
San Miguel P at Mouth
—
1 • —
32
White R biw Piceance Cr
.
1
White P at Rangely
—
.. .
:
White P nr Watson, UT
Yaiioa P or Maybell
Yarnpa R abv Lily
• . - __! ‘_j
.. .2.L

Yarnpa R biw Little Snake P
S
Little Snake P nr Lily
•
•
•
•
50
San Juan R abv Navajo Res.
C
:
San Juan P nr state line
— •
—
—
• — : • —
Anirnas P nr Bondad
•
La Plata P nr La Plata
.
.
ManccsRnr CO—UT line
—
TotalDissolvedSolids(TD$)
II
S Platte P nr Kersey
: •
S Platte P or Weldona
:
: 0
40
Platte P blw Sterlino
t P1 a ttePnr Jul esbu rg
0 0,0
0000 00 0 0 : 0 0 0 0
so
rkar sas P flr La Junta
I 0 0
39
— :nsufficiert data

-------
Table 3 TABLE OF CR T!CAL STATIONS AND PARftJ4ETERS.
X Minor exceed nce of stanuards
At or approaching critical
levels
COLORADO
I
STATION
JANF BMARAPRM Y JUNJULAUC!SEP0CTOV 0E
RK
Dissolved Solids Continued
_J_J.___
— —
Arkansas R at Las Animas
Arkansas P biw John Martin
Arkansas Rat Lamar
•
•I 1•I
•IL.
• , • •
— • •
62
67
831
5
3
Arkansas R nr Coolidge, KS
•
I
I
I
II
•
• • :• •I
2
Cache La Poudre nr Ft. Collins
[
— 0 0 0
Big Thompson nr Mouth
0
0
0
0 0
0 0 0
47
Thompson P nr Berthoud
°
I
0
—
—
—
Thompson R nr Milliken
St Vram Cr at Mouth
•4 1__• I

—
—
1 •
0
55
31
6
lountaln Cr nr Pueblo
1
—
Q
0
—
0
49
Uncompahgre R at Delta
I
I
0 0
52
R abv San Miguel P
lores R at Gateway
S
—
• —
— —
— 1
I
• I
67
4
San Miguel P biw Uravan
an Miguel P at Mouth
— —
j
II
0
O
29
31
—
Mancos P nr CO-NM line
0
—
H
pended Sediment
I
S Platte RnrWeldona
S Platte R at Julesbury
Colorado R at Loma
.
.2.
0
35
pjorado P nr CO-UT Line
!
!
1
0
0
!
• Arkansas R at Canon CIty
Arkansas R nr Portland
P at Nepesta
Arkansas P nr La Junta

Arkansas R at Las Anlmas
0
31
0.1
•
•
•
I
26
I I • • I • 66 3
- —---—— -—
1 I

V Arkansas P at Lamar
Arkansas P. nr Coolidge, KS
Cache La Poudre R nr Greeley
Big Thompson pr Mouth__
I I
---- --r-- -r-- --

._! I. J—

V
32
L
V
—
(for Temperature, DO, and
I Above critical levels
pH only
— Insufficient data
49

-------
Table 3 TADLE OF CRITICAL STATtO S A C PARA’ ETEF S.
Minor exceedence of stana rds (for Ten p r ture, CC, and pH only)
At or approaching critical • Above critical lovels
levels
50
S7ATIOt’
JAN FE !t .R APR :i ijui4 JULZUG. SEP rjCT G’ OE
QT R G
Su Dended Sedirrent Continued
I
i
Little Thompson P nr Mfl liken
•
•
35
St. Vram Cr biw Longrnont
0
•
•
3
Boulder Cr at Boulder— Jeld Ccs
0
15
Fountain Cr at Manitou Springs
I
24
Fountain Cr biw Colorado Springs
Fountain Cr at Pueblo
•
•
I
27
Eagle S at Gypsum
S
17
• Jn con nr rand ict_ -
White R biw Meeker
WhitePabvP ,angely
White S nr Watson, UT
0
C
l
—

•
— —
2LL —
—
45
23

64
—
J
4
Little SnakeRnr Lily
Unccripahgre P at Delta
oo•••
— L._.
!J
00 •J0
1
652
D oresRabvSanM e1R
San Miguel P at Uravan
I
—
0.
J
18
San Miguel Rat Mouth
—
.1
15
— —
.
— —
j•
..— —— —
-
1
-
—
I

I
‘ ‘ ‘
Hi1_ii
EL::
x
0
— Insufficient data

-------
Table 3 TABLE OF CRITICAL 5TATI0 S AND PAR, !4ETERS.
STATION
JAN: FE5M APRMAy JUNJUL*uGSEP0CT OV OE
Q RcG
Trace Metals
S Phtte R abv Littletor
CM
20
—
S Plptte R at Hen4erspn
CM
—
,
CM
‘29
CN
21
S Platte P vw Julesburg
—
CM
— :20
—
Colorado P nr Loma
Zn
31
Arkansas R blw Leadville
Zn

Zn
. 27
Zn;
31
Arkansas P nr Canon City
Cd
.
1
Zn
33
t i
I
Arkansas P nr Pueblo
1
l_
—
CM
I 20
Arkansas R nr Nepesta
—
CM
42
Arkansas P nr La Junta
f
—
Cu
30
—
—
—
Arkansas P at Las Arilmas
CN
20
—
Arkansas P at Lamar
CW
20
—

Arkansas P nr Coolidge,
—
—
—
—
—


C M
20
—
Conejos P nr Maaote
- --
47
-
-
;
—
-
Big Thompson R nr Loveland
Zn
27
:
‘
Ciear Cr abv Go den
Pb
2&._._
.1
Pb
CM CM
..__
Fountain Cr nr Manitou
56
20 :20
-
Fountain Cr biw Colorado Sprints
-
-
—
-
—
—
CM CM
21 22
Fountain Cr at Pueblo
in

Cd
100
TZn
Eagle PatEdw r4s_
Gunnison P nr Delta
Gunnison P nr Gunnison
—
—
CN
[ 22
— N
O
Cu
.
Unçoinoahcre P at Ridaway
78
Pb
33
Zn
21.
,

,.j r!coInoahgre P at Delta
—
—

CN : I
: ;
I I
:
—
.
—
51
COLORADO

-------
t. WMl QUMLITY TREND tABLE — COLORADO
Stations and Parameters where Si9nificant Statistical
Differences were Observed
- Z - —
— — = C — Z
C L -
, —.4 —
-“ -, C — C r.1 = -.
= C —
— C — . C
- ‘ > Z —4 rfl -t
C C -<
C
rt t C Vt (1) Vt
C C
-<
-
SiAT s
South Platte at Littleton
C ) — —
rtt
0
D 1* 1*
South Platte @ 60th Ave.
South Platte 88th Ave.
D*
D*
c
t
South Platte @ Henderson
i
0
South Platte nr Kersey
0
South Platte nr Weldona
._L .
South Platte @ Julesburg
Colorado R. @ New Castle
I
0*
1
I
Colorado R. nr Lorna
D*
Arkansas R. nr Nepesta
Arkansas P. nrLa Junta
—,—
— —
0
c
L
—
Arkansas P. bIw cohn Martin
—
D
Arkansas R. Lamar
—
c,
__
Arkansas R. nr Coolidge, Kans.
I
—
Rio Grande P. E. of Manassa
0
1
North Platte R. nr Northgate
Cache La Poudre @ Mouth of Can.
o
Cache La Poudre @ Ft. Collins
I
D
Cache La Poudre nr Greeley
i
1*
Big Thompson R. Mouth
1*
— — —
— — — —
1
—
_i_1_
—

—
S
L GEUD
lmprQvinQ Trutø
.qridth Tr•ri
* P*ri it r C ne.’itrit1 n jp
.tcr t ci1 iy.ii
-
I
•
I

.
‘

-
52

-------
MONTANA
Table 5. RankIng of Critical Water Quality Stations by Pollutant Group
Phosphorus WQI*
1. Powder R at Moorhead 58
2. Milk R at Nashua 36
3. Pumpkin Cr nr Miles City 35
4. Yellowstone R nr Terry 31
Turbidity .
1. Powder R at Moorhead 86
2. Rosebud Cr at Mouth 61
3. Pumpkin Cr nr Miles City 59
4. Rosebud Cr nr Coistrip 58
5. Yellowstone R nr Terry 54
Dissolved Solids
1. Mizpah Cr at Olive 92
2. E Fork Armells Cr nr Colstrip 84
3. Pumpkin Cr nr Loesch 78
4. Armells Cr nr Forsyth 71
5. Redwater R at Circle 65
6. Hanging Woman Cr nr Blrne .y 59
Suspended Sediment
1. Powder R at Moorhead 87
2. Missouri R nr Culbertson 83
3. Musseishell R at Mosby 72
4. Tongue R at Miles City 66
5. Prairie Elk Cr nr Oswego 63
6. Milk R at Nashua 62
Trace Elements
1. Redwater R at Vida As=100
* Average annual water quality Indicator (WQI) value. A range from 20 to
60 signifies exceedence of water quality standards/criteria and the WQI
greater than 60 represents exceedences of a severe nature.
53

-------
I P0
‘11 SSTIIIPT PIVFW AT 1rcTr1ri •
71 TUP’•’3 3141 Ifl
‘I c.cr tr 4 o Tr.lnc!r1 ‘1
117 1Ph
T.csnlro1 RTVFIT /IT °‘ T PVPTO!,
loQc PO
1ASfll)D1 RTVTP AT VJB( F I.Tr, T.
1? l’ 1’PC 793ç ry7
M S flflpj p ‘t R 711RT”M
1?1 PPCE 291003
‘T fllPT PTVI l’T PF( l<
t17 .Dr) 0 1 ,137000
‘ r1clPy WTVFW F 1)1 EDRT PECK U
177000
PISSI1OPT RIVFR I FAR ‘t I.F Pfl1’1T
1I2 Pn IPS S OC
P!1.S r1tIPj PIVFR rF * rPIlRFUTSI1,
0619l5( 0
YF1,TflKSTOTJE RJVf:P 43 Cr1R .JIN SPPT
I 17 PU 06197500
VFIlfl STfl’lF PTVEP 1 EAP ETVTNGSTU
11700fl 0 l 714fl50
(SI rI/IRKS FrlRK YET Lnwsrn E PP/ES PK
- 1 17W 5fl flA? 141 °()
Y T,Jfl S r / I1F PIVFP *‘Tr*R UAIIPEI
117 Pfl ( 7145 0fl
Yl.fl STflrIF PJyf;p AT 61ltPJC ,S VT
117 Df) 6711500
V :1tnSTr M vi s AT H ITJ,SY, T
I 17W1111 062 iaooo
YFT i,n STrlpw PIVFP AT CUSTER • ‘7.
1i, pt, (16794 1140
VETTf1 .STflr;F PjVF AT M’(FP5 UT.
1I7 )’r 0 62 5504 10
YFTI.fl STf’PF RJVFP Al FflR5yTP ‘ ‘T
YVT tr1 SrflrjF PTV1 P UEAR MItES CIT
376530
v -rInI cTn! PP/pp MEAP Tf PPY. T
121 I PPC A 7934100
YPilfl .:STri0r P KJ AP STP ’EY
0 6329500
YEt.Ifl.sTr1 F- PIvve • .s S Y, ‘
Ilt0!’TT 790055
YET1flW5Tflfi PIVj•S AT SIPOEY
¶i7wpri 06797000
T ’flP’ 5 TVF P nEAR sT• Xp.VTPP,
Rl?i Pn ( l 7pP5( 4n
‘ 1(”P1 ’ rv tIp AI> HApr)TM, n7
Table 6. STATION AND PARAMETER GROUP COVERAGE.
Water Quality Data for Year 1978 — Montana
sia yr!
fFCT.t
IlLS
S’ISP
TF”P
U
PU
Cr11, I
‘ TT
D )4rlS
TIIPE
SOT T 5111111
M I I I
37
17
3 7
17
12
24
12
A 1
12
56
36
36
36
17
12
24
12
60
9
12
55
4
4
5
5
3
3
3
5
11
4
4
1
3
4
16
16
36
12
17
73
17
59
7
12
56
36
35
36
ii
12
24
12
60
6
12
70
I I
12
30
71
47
37
37
11
12
24
12
62
13
12
56
24
24
24
24
74
74
74
60
33
24
14
26
1?
12
12
12
12
9
24
20
12
14
25
25
25
24
75
25
25
61
34
25
14
14
14
14
14
14
11
29
ii
14
14
67
47
47 22
74 35 1 97
47
41
34
17
17
30
72
47 73 70

-------
29 01 04
TG orun: PTVF AT ‘APOTU
t17i Pfl 06794700
r*yr .onpN PTVFP AT T(} PP! NT•
12323800
ClARK FORK MFAP M1
11,%. Pfl 12324200
Ct.A FORK AT flF. P .ODGF. . MT.
293005
rLAPK FORK ABOVE flULPt
112WP 1) 12340500
Cl,APK FORK ARflVF. MTSSOUUA, MT.
1119C05 0 203003
t .89K FORK P FAD MRFPTOIJ MONTANA
293002
CLARK FORK Al PLAINS MONTANA
112W O 12189000
CLARK FORK t4FAR PLAfl’S. MT
117 iPn 12391000
CL APK FORK t THOMPSON FALLS. T
It7’ 9fl 06374500
POWDER PTVFR AT MOOPHF.AD, MT.
ll2WRfl 06308160
P K1N PK NEAR t.OESCH. MT.
112w8 0 UF,30P170
LITTLE PUMPKTPa CPfF.K HEAR VOtPOR
I I7NRI) 06308190
PtJ’ PKIN CREEK ‘JEAP VflLPOR( . MT.
06308400
POMPKIN CRFFK NEAR ! .ILFS (‘ ‘f N1
11,wPn 06326050
UIZPAH CREEK AT OLIVE 1 NT,
11,WR O 0637.6200
IZPAll CPFE.’ HEAR VOLPS’RC, MT.
112wP0 06329200
PtJP 4 CREF.K NEAR SAVAGE, NT,
l i7wPfl 06178000
POP IAR RTVFR AT THTF.DNATIOPIAL 80
t l2wRn 06178150
POPLAR RIVER HEAR Cfl$WY
I I7NPP 06179000
FAST FORK POPLAR RIVER HEAR SCrIB
ll?WRD 06179200
POPLAR RIVER A8OVE WFST FORK HEA
1 12wa0 06179500
WEST OPK POPIAP RTVWR AT INTER{I
112wP0 06180200
WEST FORK POPLAR RIVER HEAP FOOR
117wP0 12355500
‘I F ,&TI4PAO RIVER LEAP COLUURTA
Table 6 (continued). STATION AND PARAMETER GROUP COVERAGE.
Water Quality Data for Year 1978 — Montana
STATIOM FECAt
015
SIJSP
TE P rio P14 COT! ?JI1 DMOS TIJPO SOLTO Simir) $143 METALS
37 37 37 12 13 26 13 63 ID 13 70
17
12
14
14
16
9
30
10
14
9
9
9
9
9
N
18
8
14
12
10
12
13
14
9
25
8
12
21
10
8
10
10
1.
6
22
6
10
*8
2
2
2
4
6
2
12
12
12
1.
12
9
24
9
12
49
11
11
11
7
11
33
Ii
22
7
11
49
11
11
11
6
I I
33
11
22
6
11
49
Il
11
11
6
11
33
11
27
1
It
49
I I
11
11
8
ii
33
11
2.
7
Ii
49
9
9
p
3
9
25
9
19
5
9
49
12 8 8 8 8 16 24 10 16 4.

-------
Table 6 (Continued). STATION AND PARr iETER GROUP COVERAGE.
Water Quality Data For Year 1978 — Montana
fl
DLc
SF
TFuP P0 P CnI.I NTT l’ 14fl5 TUPF4 SniTT) StIT ,Tn lfl-’3 1 TM5
I
3
3
9
Ii
¶ 5
15
I?
37
3
3
3
4
3
6
3
3
3
4
3
6
3
3
3
4
3
6
9
75
19
11
27
21
12
30
22
12
30
77
9
23
16
12
78
7?
7
37 13
12
94
1?
1
FISW 9 PTVFP v3r v ‘T,
117 ’ QP l?7fl 4r
9 S CPFF ( rr l TT 0Y ‘T
il7 Pn
T? iTFY CP 3 ‘ 2 t T ’ T
117L.Dfi 1?3O3 C
TAKi CPVFI( PA T9OY .T
I17WPO
W6VE91WAP 9T ieF rr n ’TTS. MT
1I2N fl
RFV RU At) RTWPP ‘F TI” eRII1C,
117 49l) 06
Mtsnr v WFK F:? P vttir .; , 7.
MilOny rprFx “T VAIIOuF, ‘7.
lI7hD f l nAr’g000 0
I!r 1VFP Pt na”, MKAI
117w” P
SU ’I Pt VFP M V nr. ’ ”, ‘.r
¶171,90 0 130no
UlTS.SFLSMF T1. PrvvD AT °“c y , MT.
l)2hPr 06177310
‘ .17 ,I( RTVFP AT TA ’PT ’, 11..
“Ttl( PTVFP I T ‘•iASNflfl, fit.
1t?wJ n ‘ 1548 ”)
PFflPTF’ S CPF uFAe CAV 5, “!,
1 I7WP r ’ 06175540
PPAJRTF FT.’( CN f ’ ‘E C ’EGO MT
11?WRl’ l fl l77cfl
PRPWATFP RTVFP AT rIOCI , “T.
Ij7W H 1 06 177P25
PFr’T’A’rrp PTV P vtr’a. ‘11 .
l l7wPfl 0 3757n
aoxiiovi cF WAS) PrrkY Pfl MT
117 ’ P0 0 67 l77c°
CP ’FK ‘r pr)Mr :ys PlUM ?, Mr.
Ij7 MPP
PF4IIVATS CPFVIK 1P ST. YAVJPH,
1l7WPr
bJ 1’iF OTG’lflPN l TVeP M? 44PDTN
06 79494 r
SAPPY CPPFP( MFAP T4 T13 ’ “r
112 149 1 )
FAST F(19K A9 F! r v • -p
11 ?wPr l 067 49°j
“P 57 fl91( a FIrS (PF’ ’ ra FOR
06? 949° 5
AP ’F ,S i ’P “F Au F 1P ’ YTP, “1.
3 3 47
3 3 .12
3 3 42
3
3
9 12 56
36 36 36 12 12 24 1. 6 (1 9 1? 56
11
11
10
in
12
7
12
In
‘4
11 11
I I 11
‘ 10
10 10
12
7 7
11
8 10
a a
11 11
ii 11
9 11)
10 10 10
37
7 7 7
30
10 1.
p a
8 70
13 21
7 20
9 90
23
?1
70
6 72
6 16
8 11 28
13 II 713
7 9 49
. 10 4?
7 7
A 10 77
6 9 21
Ii 0 11
11 13 7 74 7 11 19

-------
Table 6 (Continued). ST4TION 4N0 PP.RMETER GROUP COVER4GE.
Water Quality Data for 1978 — Montana
PflSFPflfl rRFFV MEA9 CflLSTRTP, MT
ll7WPfl 06795400
P! SF IJT CR FK AROVF PflHy CP FV.
tl7 l9fl
js nnn pFF AR pn .-pnn
ll7WDfl 9 Q 3
Ri SF UI) CRFFI( AT Mt1HTH, NJ .AR Rfl5
T(H I I. PTV R AT TATF T,INF ! P UE
112WPP fl ,3fl7Sn0
1PIC,1jF PTV R AT TO”G 1 R
117’ PI)
lA 4(;T’ G WflM l ’ rR ’EK I’JFAR RIRtWY,
It7WP ) fl 307 1O
l’r!’4C11E RTV R RI. FAnC,INC Wt1;q&t4 C.
II2WRD 06307P30
Tc(flF 9 P.1 RA PG RR1DC,F
l17 Pfl 06309500
TOI’GUR RtV R MjT, S CITY. ! T
1 12WPD Th30774O
OTTFP CRF):X AT ASP LA?JD MT
STATTPt FECA1
T MP On P 4 COIl 1411 040S
9 9 9
71 9 11
14 11 13
11 II
9 9 9
12 12 12
11 9 9
39 36 3
9 9 9
flJ5 SlI.SP
T PR S fl jfl SO t’1 WA 14 T S
9 8 7 17 7 8 78
11 13 7 24 7 71 75
1. 25 14 12 79 12 13 28
Ii 13 7 24 7 11 37
9 9 7 18 7 9 14
12 t2 9 24 9 12 14
9 9 7 11 12 9 71
12 73 ? 13 62 11 13 70
q 7 18 7 9 14
Q
-4

-------
Table 7 • TABLE OF CRITICAL STATIONS AND PARAMETERS.
Mir.or exceedence of stanaards
o At or approaching critical
levels
STATION
DE!
WQ RK 4
Dissolved Oxygen
PumpkinCrnrLoesch
,
—
Punipkin Cr nr Niles City
I
x
Mizpah Cr at Olive
x x x
J
WFK Poplar P at Intl Bdry
X
Fecal Colifo Bacteria
—
[
Yellowstone S at Huntley
......L_
5 0 0
30
Yellowstone S at Forsyth
10!
15
Musselshell R at Mosby
— 10
:
14
Milk R at Nashua
0
!
16
Bo elder Cr nr Rocky Bo
Beauvals Cr nr St. Xavier —
111
{
J I
— 0 i
,
21
Tongue R at WY-K line
Tongue R at Miles City
0
1
20 T
1
ii1

Phosphorus
— —
Missouri P. at Virgelle
Missouri S nr Culbertson
I
5
0
i_
:
28
Yellowstone S at Forsyth
IS
Yellowstone R nr Miles City
Yellowstone R nr Terry
— — C I
S I 0 5 :
- — - ---
S • 0

20
31 4
Yellowstone S nr Sidney
Big Horn at Big Horn
29
_

Powder S at Moorhead
S
S •
Pumpkin Cr nr Miles City
SI
‘1 0
35 3


33

36 z
33
121
23
-- t
W FK Poplar S at Intl Bdry
C
Mussel shell R at Mosby
:
0 5
Milk Rat Nashua
10
Prairie Elk Cr nr Oswego
S 5
Rwa tCir l
Boxel r Cr nr Rocky Boy
0
(for T iiperature, DO, and pH only)
5 Above critical levels
— insufficient data
58

-------
Table 7 TABLE OF CRETICAL STATIONS AND PARAME1tRS.
Armells Cr nr Forsyth
g ebud Cr nr Ccl strip
__
o• s !
44
58 4
X Minor exceedence of stancards
o At or approaching critical
levels
far Tanperature, DO, and pH only),’
• Above critical levels
— Insufficient data
MONTA NA
STATION —
ohorus Continued
—
i
_
i
Beauvais Cr nr St. Xavier
—
Amells Cr nr Forsyth
ebud Cr nr Coistrip
— 0
— 0
— —
i
16
31
RosebudCratMouth
:
Tongue P at Miles City
Otter Cr at Ashland

— —
•
•
•

J I
!_I___i_
27
19
I! !b1d1ty
f
.Jit$souri R at Virgelle
S
Miss urj P nr Culbertson
llowstone R at Billings
Yellowstone R at Huntley
Yellowstone P at Forsyth
— — — •
—
— — !L2.
!
2
!
0 — —
[ _ _
jJ
—
0!
—
16

Yellowstone R nr ii1es city
. !
-L
zo
Yellowstone R nr Terry
—
—
—
—
..——
54
Yellowstone R nr Sidney
B igHornRatajgMorn
PowderRatMoorehead
Pumpkin Cr nr Miles City
Poplar R nr Scobey -
S S
—
— —
• 5 Oi 0
• II
—
I

:

30
861
59
! .
3
WFKPoplarRat lntlBdry
51
0•__SJ
MllkRat Nashau
•
0
SI
43
Prairie Elk Cr nr Oswego
S
•
•
51
6
Redwater Rat Circle
L__
j
—
n
R. water P nr Vida
$!rpyCrnrHysharn
I
.
29
59

-------
Table 7 . TABLE OF CRITICAL STATIONS AND PARAMETERS.
X Minor exceedence of stanoards (for Te perature
o At or approaching critical • critical levels
levels
STATION
Turbidity Continued
JANFEB M APP Y JUNJUL*LiG SEpQcT :wvDE
I
WQI RKG.f
Rosebud Cr abv Pony Cr.
. • !
— —
Rosebud Cr nr Rosebud
0
;
Rosebud Cr at Mouth
•
. •
61
2
Hanging Woman Cr nr Birney
—
—
•
•
26
—
TnflgUP R blw Hanging Woman Cr
Tongue R biw Brandenberg Br
—
1.
Tongue R at Miles City
Otter Cr at Ashland
— — — —
— •f•j
. Jo —
—
47
34
Total Dissolved Solids (TDS)
Powder R at Mr nrhp d
Pumpkin Cr nrLoesch
0
0
0
!
—
0
• 1
0 O
0
.
43

Pumpkin Cr nr Miles City
jo
4 I
Mizpah Cr at Olive
S
S
5
•
S
5 S
92
1
Mlzpah Cr nr Volborg
T
0
5
Burns Cr nr Sage
0
36
E FK Poplar R nr Scobey
0
33
Poplar R above W Fork
0
31
Muddy Cr nr Vaughn
0
27
Musselsheil R at Mp by
2..
—
0 0 0:0
45
Milk Rat Nashua
0
!
27
Prairie Elk Cr nr Oswego
0 0 0
“
65 5
Redwater R at Circle
S
• 5
I I • 5
Redwater R nr Vida
0 JO 5
00.:.: S
53
FlyCratPorneys Pillar
S
o • •
0 5
:
52
Sar y Cr nr Hysham
0 5
0 S I
0 0
56
E FK Armells Cr nr Colstrlp
I S I
• : •
I I •
84 2
W FK Armells Cr nr Forsyth
I
0
:5 1
Hanging Woman Cr nr Blrney
0 0 5
5 5 I
9 6
Armells Cr nr For h
-
Otter Cr at Ashland
5 • 0 5
Beavais Cr at St. Xavier
0’
35
• DO, and pH only)
— Insufficient data
60

-------
Table 7 TABLE OF CRITICAL STATIONS AND PARAMETERS.
X Minor exceedence of stanaards
o At or approaching criticel
levels
MONTANA
———i
STATION JAN FE5IM APR M YIJUN JUL*UG SEPOCT 4OV OE(
Susoended Sediment — — — — I I
Missouri R at TostOn — 0
23
29
RKG
Missouri RetVir9!lle ,

Missouri R nr CulbertSOfl
R at Billings
— i!
! ‘
19
83
2
—
j
32
e11!w to eR at Forsyth
S
22
Yellowstone R nr Miles City
Yellowstone P nr Sidney
Big Horn RatBig Horn
Powder R at Moorhead
—
S
—
—
•
I
—
0
S
—
5
S
—
5
S
0
•
—
— —
.1.
48
87
1
Pumpkin Cr nr Miles j y
Muddy Cr nr Vaughn
I
1• —
T
Musselshell P at Mosby
Milk R at Nashau
5
0
5
5
•
o
•
72
3
5
•
•
•j
62
6
Prairie Elk Cr nr Oswego
0
5
—
63
5
Redwater R at Circle
5
I
40
—.
Redwater R nr Vida
•
—
—
Beauvals Cr nr St. Xavier
Saroy Cr nr Hysham
.!
2
2
I
A ells Cr nr Forsyth
Rosebud Cr nr Colstrip —
Rosebud Cr atMouth
Hanging Woman Cr nr Birney
— —


— — —
— ! !
!
0
0 0
— —
— —
J
—
62
25
Tongue R biw Brandenberg
2.
!
• 5
66
4
TonguepatMileSCity
Otter Cr at Ashland
—
—
—
. .... - .......-. . .....,-
Nitrate
— — — —
— —

—
Prairie E kCrflrOSW e O
0
——. , ——
(for Teuperature. DO and pH
• Above critical levels
only) 1
— Insufficient dati
61

-------
Table 7 • TABLE OF CRITICAL STATIONS AND PARANETERS.
STATION
JAN
FEB
MI
APR
JUNI
JUL
SEP
0CT
Nov
Trace Metals
Missouri R nr Culbertson
—
Hg
24
29
31
Hg
Yellowstone R nr Sidney
Big Horn R at Big Horn
—
i
22
21 I 29
T ’ —

Burns Cr nr Savage
I
Hg
22
Hg
24.
Poplar R hr Scobey
Hg
21
Hg
121
E FK Poplar R nr Scobey
Hg
21
Hg
21
Poplar R abv W Fork
—‘

Hg
21
W FK Poplar R at Intl Bdry
—
—
Hg
21
—
—
—
—
—
—
—
Musseishell R at Mosby
37
Prairie Elk Cr nr Oswego
Hg
26
Hg
22
Redwater R at Circle
‘Hg
22
Hg
21
Hg
22
r
Redwater R at Vida
i
00
21
21
I
Beauvais Cr nr St. Xavier
-
-
—
-
—
-

-— —
-
—
21
—
—
—
I
‘
‘
1.
—
Rosebud Cr at Mouth
‘
Hg
21
;

Tongue R at Tongue R Dam
Hg
21
I

Tongue R at Miles City
Hg
. 1
i

_________
H
-
.
—
—
—
—
—
I

‘
I
I
I’I
I
I
I ___
—
‘
:
:
,
.
__
62

-------
LEGEND
I ImproYlfl9 Trend
D D.crldlflg Tr.rd
• PsrIm lt1r CeneentritlOti art
at cr t C* TittIl
.. i I1LLL•
Stations and Parameters where
Differences wire Observed.
Significant Statistical
MONTANA
- -, z ‘
— — .—
- -
- , — Z V
rn — rn Z
C) = = e = —
> — 0 — C
.. rn Z 1
C C C C

in C
‘ -C
i
— —
STATION — C C
— — — - — —
M lssourlR.@Toston
Missouri R.bl Fort Peck
0
I
0
Missouri R. nr Culberson
0
1
0
Yell ows tone R. @ Billings
0
0
._.!_.
_
Yellowstone R. 1 Huntley
I
1*
Yellowstone R. I? Forsyth
2i ...
.
Yellowstone R. rtr Miles City
0
3lowstone R. nr Terry
‘fellowstoneR. nr Sidney
D
0
0*
.
Big Horn R. nr St. Xavier
0
Big Horn R. at Bighorn
0
0
0
*
Muddy Creek nr Vaughn
0
1vernrVaughn
...Q ._.
Musseisheil R. @ Mosby
0
1*
Milk River 0 Nashua
D
0
1*
Red Water R. @ Circle
0*
Box Eider Cr nr Rocky Bay
0*
rmell’s Cr nr Forsyth
0*
0*
Rosebud Cr nr Coistrip
.. . . .. .
. ... i....
lOngue River @ State Line
0
IOngueR .@TongueR.Dam
-—
— . .. .2L.. —
longue R. 0 Brandenberg Br.
longue R. @ Miles City
0
I
0*
flgjngWouianCrnrBirney
——
0*
0*
0*
Otter Creek 0 Ashland
-
-
-
—
iS
63

-------
NORTH DAKOTA
Table 9. Ranking of Critical Water Quality Stations by Pollutant Group
Dissolved Oxygen WQI*
1. Souris R nr Westhope 28
2. Park R on 1-29 27
3. Souris R at Towner 24
4. Souris R nr Sherwood 23
Pit
1. Little Muddy Cr biw Cow Cr 15
2. Souris R nr Vereridrye 14
Focal Coliform Bacteria
1. Red R at Fargo 49
Phosphorus
1. Red R biw Fargo 61
2. Red R nr Perley 59
3. Red R nr Oslo 54
Turbidity
1. Missouri R nr Williston 70
2. Little Missouri R nr Watford 59
3. Cedar Cr nr Raleigh 51
Suspended Sediment
1. Little Missouri nr Watford 89
2. Missouri R nr Williston 63
Trace Elements
1. Red R at Emerson, Manitoba CN=1 0 0
2. Little Missouri R nr Watford Cu=100
Hg= 58
Cr= 68
Zn= 65
3. Heart R at Mandan CN=100
* Average annual water quality indicator (WQI) value. A range from 20 to
60 signifies exceedence of water quality standards/criteria and the WQI
greater than 60 represents exceedences of a severe nature.
64

-------
i. C t3
Water Qu 1ity Date for Year 1978 — North Dakota
T TTf
TV P 0 PD CD’A
7r r ’
‘ 1 S1’ O] 1v p FA’ I I rSTHU !r
IROnS 3
j - 1UI J P .S!17 I fl I I 1T I STP
IITPfl 0 613000 0
‘ Ic 1;PT P TVF rD W1TLTSTI1D N O
370004
USOUUj IVFR AT r.’ WTflD Nil
l’ D DCF 370002
UjflhIP PTVFR AT C,APRTSflN fl M
1l2 .JpT’ 0 3 3R4 O
qcs’iP i PIVFR AT (p PRTSN! DAM
12I fl DC 37( 0j
0UD RIVVR A T I. HO1I1 .P NO
lit FT 17 (1033
Uyç5r t,t j RTV P AT IAR i(
71 ‘lrt’o .n IPfl O7R
MTSSOUIII DTVFP AT R1.cMAPCI(
1 7 Dfl 63425 00
MT cr1trDT PTVFP AT MS?iAPCK • ND
1t7 DP 05114 0flC 1
nr,pTs IvFi• ‘4D 1 pWfl0fl lfl)
11 D r i C 1511 000
SUTTNTS RTVFP R FOXHOLM.
1i7 P1) 05117500
SOITPIS PTVVN c pvF MINOT. rID
390 ( 150
fll tS P• T’DPTH OF SA YFD
117 Pn 0512000 ( 1
SflIJP1 1IVFP Nq VEDFJJDPYF. NO
3R 0018
srllTPlc — TowrtFP r r
3Rcr Olq
çr,!toI.s P — WFSTHPPF , ‘0
ll l PP 05124000
i - 1vFp NP wF flrrrPF ir
7 I”J)HOWD 3R0 029
PriTc flF S1flIJ P, tJFAP FAIDNUIINT
71 rII qn ’o 3 1 10 (101
0TS OF TflflX P — WAI4PETON, ND
PR pP 547———1 0F67
I)1SV 19 STnIIX I AT RFCXFDRTP(F
PPPR—l3———1 0E53
pr o p tV T ’ C54H — Q AT RPI’St-l’rAlF
112, Pfl 05051500
RFF) IVFP (iF TN t- MOPTH AT 49PFT
112 1S 050540 ( 10
PF0 PJVtP n V TMr I0RTN AT FAP .°,
117 C 05054020
pFrr P7’1r0 OF T”r- r 1NTH NFJ fl VA R
r R S! P
IT Ofl T IPO )TJ 0 SOlIT’ N3 T
1 1 1
17 12 12
44 33
I I
1 2
4 19 12
10 711

4 4
I? 10 17 I I 19 24 q 3
(31
8 17 F’7
4 12 75
12 115
75 25 47
2 71 211
9 12 74
11 14
in, iq
25
25
20
15
20
1 1
24 25
74 24
12 12
2
12
ID 10
25 29 25 25 61
22 30 47 25 59
12 12 36 12 42
jq
45 42
¶0 111 1 ( 1
74 73 24 23 30 S4 24 f,j 33 21 54
4 4 4 4 4 4 I
17 I? 1? 12 I? 1. 1? 1? 12 7
2 70
2 27
1? 1 12 17 14 7
- 4
=
C
- I

-------
Table 10 (Contir’ued). STATION AND PARAr ETER GROUP COVERAGE.
Water O ua1 ty Data for Year 1978 — North Dakota
P InN
71 0p .’ t52 —.1 T-7 I
QI )TII R “tlT’ FIOST AT F ( fl
21 IU-’fl’N 1900 07
OFT P — VAPUC, rT
PPP04n1—— —1CF Y7
pL n oJ e C aP—1° ‘. OF PFPt Y
3 1 10 0 03
o :r p — ( A4Nfl V(IPI( •
2 l’r i PFx
COIl PI’/F OF TUF T flP1’P
71 T O r
P F ’1 O1”T C If DA ’itTi FOPVS
H,.’Pfl r i nq25nO
orr’ PllrFTA OF TI-li ‘ flPTH AT (PA Jl’
I I2WPP ( 15 0P3500
OF ¶ PTV O OF T ’lF ‘rlR1’H AT ri i 0,
21 rlInw 9flflfl4
P OPAYTON, PD
19 0)05
e ppuppi , rip
2 I’ 1”r 99 1791 55———t0F’ 7
PFO P l!Sl -l_75 RY VUVt 5flO,MAO1T(JRA
05102490
Q -ri TVFP OF TIF IjOPT1 - ‘IFAP PE ’R
1 ‘A ’V’ U 000001
r eticr’t ¶ -A 1’iJTPPA
3 O014
,1Ale P — FOMTTNI)S, 11 1)
39 ( 1011
1A ’ c — JAf:cTfl , fl
S ‘ TVF’ A 1A”.FSTfl I
fl 47 050 ( 1
171 VFP T lAMI1TIPE • ITO
390017
.11 “F 5 17 — TA IPIICF • II I ,
117 ,00 fl’,470 3O
5 O 1 1 f0 rtAI 5 , P 1 T)AY
191074
S 1”PP FFST OF 0Al FS
71 19 411109
SI- - r ’oc p — VALIFY CiTY, 11D
21 lAnflif ,
SoVycc ‘ I I PTVVR A 49 1 1 .000
3R 0r\iS
P — r4I( -I4r IT rJ • NO
I t7 r
SYCR!1I- PTV R AI 4 OVF H PV V •
“APT P — nAtF , U
r° P14
12 17
11 9
I? 12
10 10
17
11
10
17
74
F E C I
COT I
Nil
PHRS 1404’
015
50110
SiI P
Sfl1I!
143
‘ T 5
¶7
1?
1?
1)
12
12
f’
17
73
17
¶2
74
1?
17
12
17
12
17
7
10
74)
in
11
74
A
13
13
13
11
13
13
13
13
13
6
3
30
4
4
4
3
9
4
4
17
3
3ir 4
3
111
26
1.
11
12
72
°
.
9
17
Q
9
12
Ii
1?
13
36
9
13
2
7
3
3
3
12
F,
F’
f
12
6
7
11
17
1?
24
1
24
3
3
1
S
3
1
12
11
¶4
39
¶
7
2
2
3
2
7
F,

-------
Table 10 (Continued). STATION AND PARAMETER GROUP COVERAGE.
Wat r Quality Data for Year 197E - North Dakota
FFCAt. Ohs SIISP
.rFp fl P (‘nil 1T rs T PP 50110 SnL1 ’ !103 ‘FTAl 5
7
2
2
A A
12
A
A
27
C.,
r I riM
21 i’ L
or. s1 OF FAP,P ‘. n
71 .rJ._ -.
7
7
2
7
4
2
0 — r v ’najr• Nfl
3gr)fr3
2
2
2
2
4
2
ri ’ - VF - TPF? 5T OF c RA ’ DI M
11?’ rr
2
2
2
2
4
2
FT,’ OF T ‘ GOTN ’M VAL.tFY • Jfl
180071
17
A
‘7
6
6
12
31
OFTACS P — I r’ MPfI!, JO
1170!’ 05I1 5OO
I
1
1
1
2
1
‘lES T C 5 TV P A! FOKHPLN. tIll
7ln ’ r 38002?
16
3
72
T.TTTTF t ’T.sr ’wT P — ‘MFDORA • NP
11, Pn 06337000
6
6
6
6
12
6
T ,ITTTF 1155fl !pT IVFR NR W1ITFORP
ii2 r A1355 O
13
9
9
8
15
18
11
30
TTTTT s.crc1 RIVER AT ARUAPT
117WP 06336000
14
2
CT’TT ‘T 5C ”RT QIVF.R AT tlf ’flflRA,
71 ’flN0 i 38 1 1074
I 1F.APT P — “A’nAti, ;r,
2jPfl !lfli. 380067
11
12
12
12
23
12
tTF ’PT D7’ I0 nIITM OF GT ,AOSTPNE
1163 4S50 0
5
5
5
5
10
5
4F:APT ‘ 7; NP PICNART ’Yrflli , NP
06148000
18
1
21
;4FA1 T PJV MR LAR (, Nfl
1l7wP0 06349000
16
1
20
HFAPT D’7 .’IP “P P ANrrAM, Nfl
?1 Nfltl’ ’ 380076
17
¶2
12
12
20
24
14
41
IJAPM PI’TI ’ (‘P — CFNTFR, ‘ P
l I7wPr 06347100
3
3
3
3
6
3
SOIIART. ‘ ‘rr . - Cp F ’ TRIPUTARY NO
I I7WPO 0 63a226 0
0tIAPV e.l’rF CQEF j l1W CENTER •
7 Mfl14r - 180027
1 A
2
20
r.rn.sr P V P ‘,f p HIIT,SRflPfl
380010
P
8
8
16
8
7
8T ’tnP C JTI flF AMEPCROIlflIE
380064
1
1
1
1
2
1
1
? N ’T1 TflPV I ’OI ’F! I F5T OF CAPSnI
71NOPr 380031
1
1
1
1
2
1
1
IT I RTC P —wF 5T — AREPCPOMPTE
380033
3
3
3
3
A
3
PAIn T I f’PFFV FAST OF 0A7.EY
7l Jfl!Ifl’ ‘ 380035
2
2
2
2
4
2
2
811511 I 1VI “P1 ’H . ST oF HARWfl IJO
71 nur 380037
7
2
7
2
4
2
2
T!IPTT I p ?rp ‘IORTO flF ’ T’ANVFT
2
2
2
2
4
2
2
6 10
A Q 70
12 24
4 12
9 ¶7 83
3 12
18
6
A
6
C)
—1
7;
C
—I

-------
71 l ’ ’ ’O Cfl
‘(‘°I- ZT L ’IVrO ‘AU FnPrUJjjc’
2 1 1 ”’ )
1 ,• ’P 1 PTVl’T ” ’ Ft ‘ 1 TP fl• I’ .
71 4 \ ’ 0 1P U 61)
‘ )OJ , T nTTFS FAST OF’ l’T• 1’
71 r lr ’’0 3 1)1)4 1
a • l’PPPT,l- Ifty 1 2 1°I ‘‘
3RflO Q
PP T ’ (‘PLI’I rFST OF’ Pfli ’ 1l’;
1 1 I’1O73
( ‘flTTrP ,1flO C7 F’I< 111Pr1lPP
, r lfl.n7 3 f PO77
Cu r NI? (‘PIl l( 9 PAIF’1GI4 P1—PAXIPTA
11 7 On fl .1570 1 )D
(‘Fr’NI ? (‘OFIK ‘P IIAYNFS, NO
357500
1< 1)1? PI ?Vi’TY PT1CI • 1 0
I 7 Pn
‘I’A (‘p1: 11< II FVI- 1 ‘fl
71 1 P nInt ’ n 1 11)1)47
P1I ?k kTVI ’P F’I ,SI ’ (iF P000LF 0
71 1P 14I)VQ 1P0 043
P Ifl P>TN1: ’P I T1 ’S S I’IITTII ciflp
71 fllJ ’ ( i 3p0 044
IT I ‘ FI’ FlIsT OF’ PAPI< P.
71 \1fll-Il)l () 1 10045
R N VIP? IJORTI4 OF’ OAKWIiI 1I)
7 1 Ifl P ’ ( ) 1R 004F
PNOI’ PTVF’I ? (1 P 3—29 F(1RTN t OT’
71 1!ro IrJ ? 3101)47
rr I (:10. I? TV ‘P Sf11114 WFST PF MP I 1:
2l ’r i”n .fl 31004 1
ON “01’ OIVF P SOIITO Of PFMNI
71 lnI ’1: () 310051
‘I I L° CPFF’K P PIST OF ‘TlI 0’J CITY
117 ’Pfl 05121400
‘111 C ’ CP”Fl GP ‘ IT T ,LOi r TTY •
71 ID;lr p . 17 31101)52
r 1 ’r 1V WF’57’ OF O l in”
‘15121510
flFI’r 41/Ip Pq l Iç’ Il ’l lir’
71 M0liP ) 1Pr)0c4
TIT1 IF “nilny rP• IF OF WTTITST7
11 ? PP) 01131000
IJ TTIT ‘1i’OY P TUF’P r i, co’ CR’ 1<
71””) 3R00 S
‘1 TT1: Q ‘ ‘ITl N11F ’ r pTu
i17 , 1r (11 1 12000
“liTi PTW ON VI N 1 ‘liTTI ‘NP” ’
Ta 1 c TO (Cor t nued). STATION AND PARAMETER GROUP CVERAGE,
Water OuaHty Data 10’ Year 978 - North Dakota
N II:’
F I At! T s
‘r1: ”p l’r ’ O C’ Tt ‘TT 0-1 N’PCI c1 jr PriNT )) 1/3 ‘PT)T,c
7
7
2
7
II
7
)
4
4
4
4
1)
3
3
7
6
7
7
¶4
7
A
A
2
2
2
7
4
2
2
17
15
2
19
17
9
2
2
2
2
4
2
2
A
7
2
2
7
4
7
1
1
4
4
4
4
P
3
4
12
7
7
2
2
4
7
2
A
q
p
N
9
IN
q
P
II
7
2
2
2
4
2
2
‘
4
4
4
4
li
4
4
12
7
2
7
2
4
7
7
1
P
2
12
1 .
1
P
1
1
1
1
2
1
14
1 ) )
34

-------
2 ! r’ ’
Y PPIe ’ CoF I fl 1Pr 4 Bt 1PC ,r
71 flI-1fl gr r e
rAV P ç nv sntrt’l flF I 1 TflN
lRflfll7
CART (‘P 7 P “5 ! flfl ’1F H ’ *IR
21 ’P O )
SPPp!C c :nc .SflI Tp OF ZAP
1j, p,) flAi 1. O0flfl
.cp i ir CP fl AT 7AP, n
3R (Th 1
)( Tf F 91’JFW ri TT 4 flF’ HAZ !
1 17W9P () 13Q5flfl
V OTE F P1 IFR ‘P Gfll.flF”J VA1 LFY. ‘In
I I2WP I)
K 1t F’ PTVFR AT MoJ ’(; , P fl
117upr) n 33 930o
K I 1FF’ OTVFP AT MAP ZALt,. PJt ’
t17 ’ er) Of ,34 05 00
VFTI’F 9TVF9 AT 1A7FI4 W [ )
21 ?.InHD 1 l 063
PIVF:P WFST nF G1 ,ADSTflNFT
21 ’W4D”) O 5
IC, ‘ur ny CRAF’K Snf1IHFAST ALI ’DNT
71 fl !n%.()
A”I rVln8T.l, SOIITI4 RREIFP4
l l7wPt, fl 35 ( ’fl0
CA ’ ’flN ATI PTVF’P Al’ PF( FNT. 4r)
1i2 Pf) () 15 109O
(‘A”Ofl ’JflATT. RTVF’R F4FT,f1\A RFNTLFY,
7 lN Our.’ 3Pfl 06
‘ flRT! FORK C.PA’$I) 9 flh1TH ROWMAN
117WPD
N PTKI FORK GPA iP RTVFP AT HAT F Y,
96469500
Pr’FSTF’M (‘PFFIc A9 RUC14A IA ’. .
Table 10 (Continued). STATION AND PARAiMETER GROUP COVERAGE.
Water Ouality Data for Year 1978 — North Oakota
.cTATTn ” Fc(’At
nI
SUFP
TI O) ‘fl -‘ C°1.T ST PHtS TUP cr p J ’ snt ir’ n3 -‘FIB 1 -
3 A
3
2 1
17 12
1 2
9 12 24
Ii 1? 74
10 19 24
3 6
3 6
10 12 24
1 - 1
3 3 3
7 2 2
1P 12 ii
1 1 1
17 1
7Q 12 13
79 11 13
19 12 12
3 3 3
3 3 3
I 14
2
15 2
3 1•2
3 12
2 6
13 12 55
10 1 ‘14
A 12 31
9 1. PR
3 6
3 IR
11 12 33
‘1
3
2
40
I
70
c4
35
9 41
‘ 1
3
37
70
19
- I
— I

-------
Table 11 TABLE OF CRTICAL. STATIONS AND PARANETERS.
STATI0 s
JAN FEB M APP MAY JUN JUL JDSEPOCT 0V Dc
AVG
RKC
:
Souris_ _rr_Sherwooa
OSO ‘ 0
234
Souris P rr Foxholrn
DO
.
Souris B or Sawyer
x X
Souris Pat Towner
P
2 3
SourisRorwesthope
Bo i Oe Sioux P at Breckenridne
James P at Jamestown
•
X X
;
0
11
Janet Rat La Moure
Sheverne R at Valley city
20
El Cr nrGoldmr.Val j y
±2 2L.
I- ’eartRatMandan
Heart P nr Mandän
12’
:
.
X
Nild Rice R or Abercrcsnbje
ForestPr irMinto
Park P on 1-29
.
•
.. 5f
27 2
I
ourisPnr Verendrye
•
—
14
5ouris P r ,r kesthope
X
James R at La Sloure
: x
Little Mudav Cr hlw Cow Cr
flecxl Coli srcn Bacte’-ie
‘
Sour isPnr Ler
I — -— —
23
Count P. at Towner —
R d P at Brushva e
•
17 (a)
17
ed P biw Fargo
S S
25
—
Red P at Fargo
--
•‘• • • S • S
27
5 ed P or Parley
Heart P nrr andan
0 5 S
0
11_
34 (a)
Goose P or Hi lsboro
.
s) WD:values for years 13Th- 6 irdicate probi os but no recent data are
ran reocrt ng current stat s. _______
X Minor excee000ce of stancards (fcr T oerature, DC, and pIH only)
0 At or approaching critical • critical iCVES — :osufficient cata
levels
available
70

-------
Table 11 TABLE OF CRITICAL STATIONS AND PARA ETEPS.
X Minor exceecence of standards
o At or approaching critical
1 evel S
NORTH DAKOTA
STATION
ANFES M APR’M YJUN JUL UGGEP0CT OV DE(
Ô
RKG
Beaver nr Linton
- - - - - - - - - - -
-.-__
—
- Knife R t Mann i fly
N1tr_4_ ___
SheyenneRat Valley City
Little Mud y Cr nr Williston
Cart Cr nr Hoonle
•
22
O
12
I
— •
3
—_____
i
Phosphorus
—
Missouri R or Willjston
O I
27
Souris P or Sawyer
Souris P nr Verendrve
Q !
jO
OI•O.0 i
0 0 S
0
0 0
‘
Souris P at Towner
.
°
32
Souris P nr l4esthope
• •
_
0
0
Boise de Sioux P. at Breckenridge
RedR at Brushvale
S
0
0 0 0 0 0
0 0
30
Red R blw Fargo
0 • • I0 0 • • S 0 0 0
6L
. ______
Red Rat Fargo
5
o •
40
RedRnrPer ley
0
(JYS • Q 0;• •
59
RedR at Grand Forks
0
0 0
_
RedRnrOs lo
•• 5
QiQ Q Q
R d R t Fniercnn Mth -.
Sheyenne R at Valley City
0 0
37
,
Sheyenne P at Harwood
0
Pipestem Rat Buchanan
0
Ma 1e R at Ellendale
0 0
Maple P nr Fargo
0
E1rnR at Elj ndal
0
—
—
Elm Cr or Golden Valley
-
Little Missouri R a d r
Little Missouri P pr Watford
Heart R at Mandari
. . S
--_---- -
0
29
— —

52 I
- --
19
(for Teoperature, D C, and pH only)
• Above Critical levels
— insufficiert data
71

-------
Table 11 TABLE OF CRTtCAL STATtOWS AND PARA METERS.
STATION
J N RE5M . P M ’YJUr1JLJL LGSPCCT CV BE
AVG
WOl R G
rhoorio jc Dti ’
..__________
__
Heart R or M
0
17
S uare butte Cr at Center
.
Go e CnrHillsboro
Antelope Cr or P bercrombie
0•
- — 0
34

— -i-—--
— I
Wild Rice R nr Abercro bie
Cedar Cr at Releigh
— - — — — — —
0
Park C or Hoople
Par k C nrPark_River
- - - -

- - - - - -
.
ParkPon -29
:
Tongue R nr Pembina
0
I
Deep F. or Uohari
I
r \
‘—‘
.
,
Apple Cr on Hwy ISO
- 0
— - - - - -
Beaver Cr or Linton
- — — —
- — — 0 -
Eig ccy or Aloont
Cannonball F nr Brelen
0
0
Turbidity
I
Mi ouri P or Willisto
• • • 0
70
i i÷IL1
IJI Is ki
• 111 III
Red R at Oslo 0
Red R at Emerson • •
Little Missouri Rat Medora 0
35
Little Missouri P nr Watiord . . .
Heart P or Mandan I
Cedar Cr at Raleigh
—
Total Dissolvec Cnlids
I ——

Daunt C nr Westhope
tim Cr or Go!d n \‘aliey
Des Lace P or Foxtsoin
Little Missouri R nr Watford
Turtle F or Manvel
00
0 0 0 0
0
0 0 •
:9
-
33
40
•
X Minor exceedence of stanoards (for T nperature, CC, and pH only)
At or approaching critical • Above critical levels
levels
— Insufficient cata
72

-------
Table 11 TABLE OF CRTICAL STATIONS AND PARA METERS
Minor exceecence of stanoards
At or approaching critical
levels
NORTH DAKOTA
STATION
JAN FEBMA APR ’(JUN JUL UGSEP0CT OV DE
AVG
WQI
RKG
Total Disselveo Solids Continued
—
Forest Rnr Minto
0
31
Spring Cr nr Bowman
Cedar Cr or Haynes
S
0
45
-
Cedar Cr or Raleigh
Park R on 1-29
S 5
0 0 0 0 0 0
I
0
Tongue R nr Perobina
10
Pembina P or Pembina
S
Willow Cr or Willow City
0
Little Muddy P blw Cow Cr
0
0
40
KrifeRnrGo enVafley
0 0
Knife P at Marshall
Big Muddy Cr nr Almont
Cannonball P at Regent
0 0 0 —
—
00 0
i
oj
0 iO
0
0 0 0
4O

46 —
CarronbeliRbiw Bentley
0 0
j
0
SonngCr at Zap
J
,
—
37 ,
Knife R or Manning
Knife P or Hazen
0 0

0
N Fork Grand P at Haley
0
42
Little Missouri nr Monarch
0
.
Suspended Sediment
MissourjR nr Williston
-_
—
sj 10
Missouri P at Bismarck
0
—
Elm Cr or Goldenj jj
I
2J_
Little Missouri or Watford
S
I
89
Heart P nr Mandan
5
30
Spring Cr at Zap
0
•
17
Knife P at Marshall
0
30
knife P at Hazer
0
1g
Cannonball P at Regent
0
———— -..

22
— -r-
x
C
(foriemperature, CC, and pH only)
5 Above critical levels
73
— Insufficient data

-------
Table ii. TABLE OF CRITICAL STATIO ANC PARAMETERS.
inor exceedence of stanoaroz (‘or T iperature, CC, and pH only)
m At or approaching critical • j cv critical l veh
levels
74
CTATON
JAN FEEM APR AYJUN JUL UG SEP OCT CV CE
AVG
WQI RKO
Susoerded Sedirent Cor,tinued
Red River at Fargo
Red River at Perley
I
0 I
16
23
Red Piver at Grand Forks
I
23
Red P ver at Emerson, tba
. • 0 0
7
James F at La Moure
0
33 __________
-
.
- -------

,
—
. --- ...- .-----------
.
--
-
— fltut ciert data

-------
Table 11 TABLE OF CRITICAL STATIOI 5 AMO PARNIETERS.
NORTH DAKOTA
STATION
JAN
FES M APR
M YLUN
{ G
SEP
OCT
OV
CE
RKG
Tv-ace Metals
—
Missouri P nr Williston
Hg
40
Mt ssouri P at Newton
Hg
24
Hg
22
R
24
Red P at Brushvale
—
—
—
—
-
—
-
-
—
28
—
—
RedRatFargo
Red P nr Perley —
CN
31
CM
Hg
Hg
—
-
1
Red P at Grand Forks
CM
23
CM CM
25 22
Hg
21
-— --
Red Rnr Emerson, Mtba
R
22
—-
CM
CM
I

CM CM
CM
CM CM
CM
CM
Red P at Emerson, Mtba
Sheyenne R at Ham-wood
100
100
100IIOO
100
100
100
100
100
CM
20
CM
24
CM
31
Little Missouri P nr Watford
Hy
24
Hg
22
IT
58
I

Cu Cu
30 134
I
OO
Cr
!
68
Zn
65
Heart P at Mandan
CM
22
i M
20
Cu
100
Square Butte Cr at Center
Turtle P nr Manvel
—
1T
23
CM
37
I
•
CM
38
Forest P nr Minto
CM
22
—
Park P nr Park River

Park P on 1-29
CM
25 j

31
I CM
23
CM
21
‘

Pecnbina F nr Penbina
CM
25
CM
25
Will ’ Cr nr Willow City
C u

L
—
inq atZap
Knife P nr Hazen
22
—
27

.
:.
— -- - —
I
—
—
—
—
I
•
i -i - -
H-
-
-
-
HH
75

-------
Table 12. WATER QUALITY TREND TABLE. - NORTH DAKOTA
Stations and Parameters where Significant Statistical
Differences were Observed.
—
— — z =
= L i., - C’ (fl
C.’ ,, Lfl 0 ç4 —r
0 - - — -‘ z
= 0
—
, , ,
0 0 -< 0 0
C
F , - C C L
C 0
- <
0
SA 0 4
Missouri River 0 Williston
I
Missouri River 0 Ncwt n
Missouri River 0 Garriton Cam
0
Missouri River 0 Bismarck
1*
0
Souris River or Foxholm
1*
0*
1
0
I
Souris River nr Verendrye
1
0*
Souris River @ Towner
Red River @ Fargo
I
Fed River W. of Perley
1
0*
Reu River @ Grand Fork
J
heyenne P. 0 Valley City
]
J
1
Sheyenne p. 0 Harwood
Little issouri P. 0 Medora
Little Missouri F. @ Watford
I
1 i
L_
.
Heart River 0 iandan
I
,
Square autte Cr. blw Center
0
Goose River or H 1lsboro
I
I
Forest P. E. of Minto
I
.
Cedar Cr. or Raleigh
0*
-
Park R. on 1—29
I
—
—
1111111
111111111
—
.
L
.
. . .— .— ..
..t _F . .
1m —cCFnç Tre w
.çradir g T,en —
- Param.t.r Canc.ntr,tions Ire —
1_ rFtFt 1 CVS
:
.
,
r
—— . —
I
76

-------
SOUTH DAKOTA
Table 13. Ranking of Critical Water ualityStations by Pollutant Group
Dissolved Oxygen WQI*
1. James R nr Stratford
2. James R blw Mitchell
3. Big Sioux R abv Waterton
1. White R nr Oacoma
2. Big Sioux R at Sioux Falls
3. Cheyenne R at Plainview
1. Whitewood Cr at Pluma
2. Whitewood Cr at Deadwood
3. Whitewood Cr nr Whitewood
4. White R nr Oacoma
5. Ponca Cr nr St Charles
6. Big Sioux R nr Alcester
1. Belle Fourche R nr Sturgis
2. Belle Fourche R nr Elm Springs
3. Whitewood Cr at Plunia
1. Big Sioux R
2. Big Sioux R
3. Big Sioux R
4. Big Sioux R
5. Big Sioux R
6. Boxelder Cr
at Sioux Falls
at Canton
at Brandon
nr Alcester
nr Hudson
at New Underwood
96
91
100
88
93
89
Turbidity
1. White R nr Oacoma
82
Fecal Colifon Bacteria
35
27
26
18
10
10
100
100
44
42
38
35
53
45
43
Nitrogen
P ho s Ehoru s
77

-------
SOUTH DAKOTA
Table 13 (continued)
Ranking of Critical Water Quality Stations by Pollutant Group
Total Dissolved Solids WQI*
1. Cheyenne R at Edgemont 66
2. N Fork Grand R nr Shadehill 65
3. Belle Fourche R nr Sturgis 54
4. Cheyenne R nr Buffalo Gap 53
5. Cheyenne R nr Plainview 47
Suspended Sediment
1. White R nr Oacoma 93
2. Belle Fourche R nr Elm Springs 91
3. Grand R at Little Eagle 72
4. White R nr Kadoka 69
5. Little White R rir White River 59
6. Bad R nr Ft Pierre 53
* Average annual water quality indicator (WQI) value. A range from 20 to
60 signifies exceedence of wdter quality standards/criteria and the WQI
greater than 60 represents exceedences of a severe nature.
78

-------
Table it 4 . STATION AND PARAMETER GROUP COVERAGE.
Water OuaHty Data for Year 1978 — South Dakota
S1 VArIfl FVCA1 OTS SH5P
TI “p II ’ PH (‘nIT TT ‘ ‘$ T1 P •cl) p 5I Ir NH3
21S ’A 03
“1 5$ 0iIP T PT VPP A’ 0 11W P A ’ 23 1 3 jO - 1 3 13 7f ’ 13 13
171 “CP(’I 4 Af4flfl I V
PrpOIIflrcV ntIrc’I04 AT 1)1W1 7 1 4 5
112Pfl flA44 00 ” n
Ms 5n 1 1o 1 p l IT PfPRP P 27 27 33 I I 13 4h 13 37 4 13 55
4E. 0 A77
PtVA AT PIG RA 1I0 0r ’ IC A 3 A A 1’ 1? A 6
46°0fl
pnFPor ’I’cF fl!!T ’TflW AT TG REPII) 5 5 3 3 4 3 14
4A 0fl32
MissouRi R1V ’R Al’ YA ’I(TnIS
17 1 ’ IePC P 460029
‘ n P P PA” ARPVP YA MTfl’ • SO
?15 O1 46(1673
MTSSflhIpj P AT FORT PAICALI , n ’ 9 5 3 5 5 5 10 5 5
7 i s P AP Ifl l 4Ar ’ 6 ’74
P Al’ GAVT’S PHI ’4T nAIl
117wP0 0 619’00 0
C’4FYF,MF PTVFP AT FDGFPOIJT.S. 0. 11 1 i 5 1 11 2
21c 0A 1 1 I1 45fl 75
yp p P AT FnGE HPT 1. 10 10 10 10 11 72 Ii It
06401500
Fyf ’HMF r nw AIlGOSTIJRA DAM 5 0 9 36 18
I I7ADn 0A4 ( 1 75 00
CHFYF 11F P lIFAP RIIFFAJ fl G P 57) 1. 12 48 73
71S7)AKfl1 460656
CyF ’ ”II PTVFP
1 I7 ’ RP fl54235 fl
lFYA i ”F P NFAP WASTA SD P 0
71 S7)AKC1 460065
CHFyFIPV P IFAP WASTA 71 1? 11 12 10 1. 24 12 1
?1SpA 01 4APR60
CHF.YFOAIF TVFP SF CF PT,AIIIVIFTW 77 13 11 13 ¶0 13 76 13 13
17 14n0rv 460010
RF’IPP: PTVFP hFAa I ’AGL surr, ’ 7 4 5
1 i7 ’ PP 06439500
rHFYF ’uP P IFAP FAr,IF 0IITTF SD 10 10 39 70
21Sn1K1j 450655
P IG S100Y PTVFP APOVE ATFPT0 7J 10 11 0 1 11 ii 22 ii 11
46 ( 1740
PIG SillIlY “Fl ! ’ WATFPTOWO 75 14 11 14 14 14 7P 14 14
46(1662
R IG sioux Pj ’ VP ( ‘Fl ’VTApy pflAfl 71 12 9 17 II 12 24 12 12
I I 7WP I) (16480 ( 1(1 0
‘ ir .cjri’ix PIVIP ‘IFAP npnrncn’e,s 5 12 1?
2 lS nA lc C l 4607(17
PIG stoux P1!’ lI I ’Pnn 1rcGG 71 77 9 72 17 1. 74 72 1
460663
PIG SI ( ’IIY FAST OF FOAl flP sp 34

-------
T b1e 1L 4 ((ontinued). STATION A1 D PAPNIETER Ci-OUP COVEVA E.
Water Quality Data for Year 1978 — South Dai oto
—
T’ T” ’Y 1VFP TO $Tflh’Y l - l 5
“1
.r) r J t Y PJ JF ‘ AT- Of -I I PAP1fl 3
1000
a “f. P 01-11, 010105 50
I I 1 r r 4t t TlOPO
c i-t Y IV -P 1 11W c1c1’i’ FAILS
fl7, ’ f’ 4P2D ? O
i T’ Y AT 000114 CLIFf AVL A
1 ’Y 1 IVFP i’FAR eP4 ’JJ’flL S.
fl ,.vi
01 T A °T’JVP AT IIPA?’iPflti S t)AI<
4 l c ,S
51 ’( 01 JfP ‘AST OF CA’ITPU
21s• 46nA
01r SJ Y ‘ J’JF0 FAST (iF f-IJIr1SIIU
4f0 7
i 0 SF OF ALCFSTFP
4 1P37
c TU ( 0IV1 - 1-1-1Q RT.CI4I,74M0 SI”
4 47P7
ST” PTV ’P 0 I1tJflSflM, Sf11 1114
OS
1!C f !‘1C1A
7lS kr 1 4f,rC734
¶i-’i-S °1 ° ‘ AR STWATF PT)
0647 0flC i
11 ’I- S P tT (‘r1I, MR1A Sf
1 13
-c Ore AT CIi IUMR’I 1
11 ‘I S Pt ‘JCP Afl 1VF UilP;’ ’
Ii ?’ ‘ Of,47 O(’O
P ‘T 1II?fl Sn
17. r
IA ’ ’ C 0(009 AT IWtA W • S. OAIt.
112 s i) r 4 4moco
•IAM P ‘ 71ST P 1 fl(F PO (1i! • S
4f 7 ’
IA “VS ‘p rFT. lid ;1f Pfl I
71 51 (‘1 4 r l7V7
S1&’i- S ‘ ‘I - 9 M”’VF ‘.iITCPVT.I,
7151 A1r’I 4AflA3 l
“4-c 1 (1 P Pf- ,fjW ArIfF CUFFI(
71S I’P 1 4 ,fi7 7()
1A ’’1 S P4-P LF p “TTCIIF1 I
1 1 7 - 0 ; ,
P 00 ‘TTCI-4FT.I, S,flhiK
cTZ T I ; ’
Ti- ‘P
OP
01
c 1r i
cOT i
tr
rtc c;icr’
r’w TOT; P1j11 5fli , fl
T’ ’t3 ‘ 1 11 5
7’
¶4
14
14
11
14
‘7P
13
14
7j
17
12
ii
1?
24
17
12
aq 22 l•7 22 72 7? 47 72 77 l
7 . 14 14 14 1 13
71 12 12 1? It) 1?
l 1? 12 11 10 12
21 12 17 11 10 12
21 13 13 II ‘1 13
If,
14
7
‘A €
44 5
9 9 ‘A
q
12
17 12 12
40
21 1? 5
in I 10
21 14 13
74 12 12
24 12 12
74 1. 12
7( 3 13
9 9
p
74 17 12
2 1 1
22 1 11
7 1 I
1 1 1 1 1
20 ii 11 It 10 11
2 1 1 1 I

-------
Table l it (Continued). STATION AND PARAMETER GROUP COVERAGE.
Water Quality Data for Year 1978 — South Dakota
2 1 5F -A x o t 4h 7 f l7
tA”I S P1 ‘JV f lI-Tfl— •AIT(.ItVI L
flFb47PS ’
,tt’ rc o 1!FAP rntv,rt n 4f1
,1cr A&tr’t 4An lAr
JAVLS 1VV9 M1 P yt’ t
,I&” S PTVF ‘- IPT t 4 nF fl.VKTflN
21 5P AKfl1 4 6 7 S
VFP T1 t-jr’t-t P PJP4P .AKflflflA
7 IS PRKfl I 46074 5
VVP I L? 3fl I P ‘ FAP tIFPMILT 10 1
71 5 0AV 01 460 64 3
VVD’t II 1 1 1 1 11 PTV P it ric cwArrLLrtp
7 lSflftkt’t I 4 60 915
KFYA pAPA rvrp PJF$P k.c- c-LA
71 5 0ftK 0 1 4635
‘ I ’TTr Q1vF Wflp k4fl0K4
71 SPa I 450 97c
4WTTF PT ’ P ‘JF4P OACO”b
71 5rAKnt 44 0P47
wutrr P VfP “lEAP r’CL4LA
1 17w 0r 0645 )nc io
IIJ)1ITF 0 “‘PAP flACflMA n
2 lSrtRK ot 4 60P40
ITITIF’ WH ITF P 14FA0 ‘ HTTE P SF’
7I5I 1A1cfl1 46fl943
T TTT1 ,E bI4ITF RTVFP 1V40 T IJTI4TI.JL
7 ISDAK OI 460905
PATTIP CPr I< ‘trAp KFV5TOPIF’
71SF’I’K11 460910
PAPTO C l a r k ‘ir p vap r r,npLE
7 ISflAK O I 440970
RAPID CPWF’K Pf1,DW PACTO?,? DES.
I1 7W 9L) 06411500
RAPID CQ 9VIJPW PACTOTA flAw 50
II?’ 9fl 06421500
DAPJO r ‘.FAP FAPM1’ CflAT IF 50
71 5nAx 01 460647
°APTD rgrrv lJ AP Pt’Ct4FrPfi
2 1 5 0Ak f l1 46 0 6 9
PAPTO rprc-v WEST D l ’ D PIfl CITY
7I sflAknl 4 6 0P9n
DF’1 1V Fntlprql’ # rp aP -t .r F’nlP(’
2 lSrtAk O l 4hOPfi n
PF’tLF’ rnnprHF- P!F 4 ST’IP(TS
(l64 7R5 O
ETI .r Fr.lPrl’F t A r aY— L STATF I
117\-P0 0€ 437o (’
prt r rntIpr 1c P 9fl9 5Tt!P(TS Sn
ST A TI fl ’
FFCA’
t ’P
fl t )
PH
Co Il
7?
¶ 1
12
I ?
74
74
12
i i
TITOP
015
51W)
74
St l SP
SD ! 1°
II
It I 3
12
“VTAI,S
12
36
9
12
6
- iTT
P fl:-j
It)
17
17
74
71
12
12
12
9
¶2
74
12
12
19
¶1
11
11
9
10
77
11
i i
6
3
3
3
7
3
F ’
2
3
71
17
12
17
10
12
74
12
12
21
12
1)
12
1
11
74
12
12
75
14
12
14
7
14
79
14
14
0
5
3
5
5
4
10
5
5
19
11
10
10
k
11
22
11
11
26
71
14
11
12
24
15
36
7
12
56
71
12
10
12
6
11
24
12
12
71
12
11
12
12
12
24
12
12
71
12
11
12
11
11
74
17
12
11
11
44
72
17
9
38
27
71
12
11
12
11
¶2
74
12
12
71
17
11
11
12
12
74
12
12
t
11
11
II
10
12
74
11
12
71
17
11
12
tO
12
74
12
12
70
11
11
11
71
12
I l
7°
9
7P
17
17
47
74
13
U,
0
C
-I
C
0
—I

-------
Table It a (Continued). GT TION Al [ PP AMETER GROUP COVERAGE.
Water QuaHty Data for Year 978 — South Dakota
‘ n e ’
p
F CA I
T
‘ r
tr r o
r1rrr
‘1
cr1 j’-’
1 P
nT i
‘ r3
‘VT
110 fl’ (‘ ,l P ’nn
1 F rnepcrr e tn ‘T ‘ PPT’r ’
71
7)
1?
11
II
72
1
14
F
It
‘,IF ’ tfllr’r ’I (V “!.“ 1T.! S
71
¶7
11
10
1cr
17
74
1?
1?
4f fl ’ rO
ot ’r’ ,e ’rs a ru i ’r T’F ’IrFTS r
71
¶7
11
¶7
17
I?
74
¶7
12
4f 0 0c
1 VP P AT Ff HF’ F11lRi
21
12
11
17
12
12
24
12
12
? 1 r rtKo1 4A0 0 15
“I’ Ar! PTVFW ‘F4rr PUT TFHOPSI-
5
1
1
3
7
3
A
3
3
4f’00 9
V(rP II PTVVP FAP 11514
4
3
2
1
3
3
A
it
3
0 F, I c ‘7 9 1) 0
P AT T,TTTT.V FAC,!,l S!
‘73
71
13
9
11
70
in
13
‘7
I I !
C
? lSflA i(fl i 4 , 7 2
F’r,lJk C,PA ”O D ‘IFAIl SHAIrF ’Hiti,
4
3
2
3
3
3
3
3
7isl rK01 4 A 061R
c. FOUV (O rJO P (WTU (iF TSP
4
3
2
2
3
3
3
3
4 F. 0 F . 4 ‘7
(u ’n PIVF9 AT S AO€( !TLt
4
3
2
1
3
3
A
3
3
‘1SnAP fl1 4,09 55
I rT I F F ’T5 )J (R1 P AF ca . ’ CP11fl
6
7
2
2
2
2
4
2
7
7lc’A l Ini 4 fl ’ 7I0
O
N)
1 JTTII . ‘Ti!NF flTA P F FAP PFF ’VVP
A A0 ’ 7 0o
21
12
9
12
1?
12
74
12
12
“u T Tr’ 1F P UFAP F’TU STP F CITY
12
10
H
io
in
to
20
10
10
2lSn AK r 1
P “FtP FT PTA’I !PF
15
9
‘7
P
5
H
IF.
P
P
71Sl’tK ’i
A’ P7 1 (f ’P AT pfl ’F
( 1 F. 4 4 1500
9 ‘iMi FCRT r1F p : sr
1
t
21 cflA lcOl
Pl ’ VI ,I1FP 0 9K AT ‘r ’ !nOEpwcInn
ip
9
R
9
9
9
19
9
9
4A097S
1tFP r1 FF ’K ,I .’4p I F .rr (
71
12
11
12
12
17
74
12
1.
7 lsnM<01 4A 0F.4F.
CFFF ’K FP,AP PY TIC
77
11
1?
13
I 3
13
7F.
13
13
715 1 !AV01 8ArTF.S0
entry Cflt Tr’er CPFFK
71
17
10
1?
ii
17
74
1?
12
?1S0A 1 4F.OF ,6i
PJC}; C FFK JV CI! TF4 STATE P!(•
,
11
10
1.
12
I.
74
17
12
6F.n F .’ 3
V )V ”CW ( Pt ’l NFAP rlrc’ ’Fp
7
12
hr
ii
12
12
24
1?
12
4F.flF. SH
,‘ rfl’y .flflfl CPF ’EP( APr1VF UCPFS !IKF
71
11
I I
12
12
17
74
12
12
4c.flF,5q
.nTIFi.’flflr . 0 ’F v I ll PTtr ’,r
17
9
9
1cr
9
10
7
in
in
7lS e ir l ’ ” !
lTTA ’ flflJ1 CUFF K ‘‘F I I I ” Ftt’ ,rrn
1
¶
in
,
72
I I
¶ I

-------
Table 1 (Continued). STATION AND PARNIETER GROUP COVERAGE.
Water Ouaflty Data for Year 1978 — South Dakota
71 Sfl . I 43’ 3
WU7TV . r’ ‘ F3 %F nITF flflD
4 ’ n 4q
SPPI3’c c v SnhI ’r11 FST OF PAPI
?tcnA 1 4f nf, ’4
spwi ’ r. çt; AT PF IflZ . 1AIF.
2i.cna ”i 46r ’ 4R
SPPP’( CO’ ”( IJFA” MIlL CITY
7j r)Ak 1 4A ( ’ S7
FAIL ?‘I .AD rn FT,11F,orF
4 n A
SIX “HF APOVE MPI1OKTNC ,S STP
71snA ’i 4 c ’# 7o
PONCA PV SflIITH OF ST CHARLES
2tSPA X’ l 4 1, ( ’P%O
MAPIF p “rap EPICX
71 5r 3aK”1 460645
I AC )IIT FAPIF RIVER AT (ARY
46 ( ’ 44
IAVF CP k # AP Tt7Tl4Il t.
,lSflaI 1
¶11KW PS2 SFCTIO ’4 9 WI!,V nW CRFCEI(
2lSflI l ”I 460675
( ‘ 5 MIFFS S JJINC U.S. HWY R5 3 ’ 5
2lSr ’AP 1 460680
T11 ,3J P S ? ’ SFCTV7H 9 WTLt ,OW CREEV
1c t
T39r n f l PH Cr ’tf NIT
3FTA IS
7
I,
12
015
PHNS TIIPH .5C13
S1iSP
SHJ
1?
7
6
1
6
7
14
7
21
12
11
17
¶2
t2
24
t2
71
17
11
12
I?
12
24
1?
1
11
10
13’
Il
II
22
II
11
4
3
3
3
3
3
6
3
3
I d ,
— I
—4

-------
Table IS . TABLE OF CRITICAL STLTIO S AIW PAR ETEPS.
STATION
.J N rEBM PPM YJUNJUL UCSEP0CTJ0V 0E
.OI RKG
Temoerature
Bi Sioux P at Brandon
I X
James R nr Vankton
Ver illicr, P nr Wakonda
Ve illicn P nr Chancellor
X X
x
I X
Keya Paha R nr Wewela
I x
;
Whetstone P nr Big Stone City
BadRnrFt.Pjerre
X
:
‘
I

2i rIved flxv en
I
Big Sioux P nr Waterton
S
16
19
Big Sioux P nr Brookings
X
X
Big Sioux P nr Egan
(a)
Bi Sioux P nr Carton
X I
I
Big Sioux P nr Hudson
X
-
8
Bi SiouxR nr Pichiand
X
James P. nr Hecle
x
10
James nr Stratford
1 0 5
35
Thmes P bv Huron
0
11
Janes R abv Mitchell
X
10
27 2
James RblwMitchel l
S
James P nr Scotland
•
-
11
James P nr Yarkton
I I
17
Vevmiillion P nr Charcellor
X I
-

-. Be le Fourche P nr Sturgis
X
6
Six Mile Cr rBrookinçs
X
Mi sour1 P t ) tiu flani
ChOvenne P r d nvIex,
(a) 1977 data indicates prcb
x
0 -
ems. No 1978 data.
10 -
X Minor exceedence of standards (for Temperature, CC, and pH only)
o t or approaching critical • bove crit ca1 levels
levels
84
— rs fficient cata

-------
Table 15. TABLE OF CRITICAL STATIONS AND PARN .IETERS.
X Minor exceedence of standards
o At or approaching critical
levels
SOUTH DAKOTA
STATION
JAN DE(
WQI
RKG
pH citinue
I
—
Big Sioux F abv Watertown
x
9
Big Sioux R nr Brookings
x i
Big Sioux F at Sioux Falls
—
X
jQ
Bic Sioux R nr Richiand
James R abv Huron
X
— — —
I
James F nr Yankton
X
7
Vermillion R nr Wakonda
X
Vennillicn R or Vermillion
X
:
Vermillion F or Chancellor
Keya Paha Rnr Wewela
— — —
— — —1— —
8
.
White R nr Oacoma
Little White R or White R
— —
— x — — —
18
9
8
Little Minnesota R nr Peever
0
Whetstone F or Big Stone City
X
I —
7
Rapid Creek or Farmingdale
—
I
17
—
—
--——--——--—
Fecal Celiform Bacteria
I
Cheyenne F at Edgernont
Cheyenne F nr Waste
j
•
I

17
20
j
.
Cheyenne R or Plainview
-

I
W
20
Big Sioux F nr Watertown
Big Sioux R nr Brookings
—
0
°
—

oux at_SiouxFalls
0
0 0I
B j xRet Sioux Falls
Big Sioux F at Brandon
—
0
••‘•
•
32
32
Big Sioux R or Canton
0
19
-
Big Sioux R or Hudson
I I
2
Big Sioux R or Alcester
•
• • —
L
7
Big Sioux R or Richiand
i : S
0 I 0
James F blw Mitchell
• •
30
James F nr Yankton
— • —
1Q_ — -
(for T nperature, DO, and pN only)
• Above critical levels
— Insufficient data
85

-------
Table 15 . TABLE OF CR1T CAL CTATI0 S AND PAR?JIETERS.
STATION
JAN FE5M APP M Y JUN JULAUG SEP OCT ’WV OS
ô ? [
Focal Cc lircrm Bacteria Ccntinued
Venni lion P nr Wakorda
emi1licn P nr Verrnil lion
Vemillico F nr Chancellor
••_______
0
23j
25
S S
WhiteRnr Kadoka
0 S
31
WhiteRr irOgla la
5
19.
White F or Oac na
. .
42
Little White P or White River
°
30
Little White P or Tuthill
S i I.
Belle Fourche ° or Ei Springs
5 0 —
20
Belle Fourche F or_Sturgis
GrandRatLitt lesagle
19
23
BadRnr Ft. Pierre
: 5
201
- Bad P at Powell
01
French Cr nr Custer
•
20
Whitewood Cr at Plunia
- — - i I S • S S • S S S
103 1
WhitewoodCr or Deadwood
- - 5 I :5 S 5 I S 5 •
100 2
Whitewood Cr or Whitewood
5 • 1 0
4 3
Fall P at Mouth
I 0
31
Si, ile Cr abv Brookings
Poncacrnr St. Char s____
j S
0! 5 0
385
LacOui Pane R t Gary
Strawberry Cr nr Lead
—
S I
Nitrate
1
Cheyenne P nr Plainview
‘0 1
23
B g Sioux P above Watertown
I
14
Big Si x R nr Watertown
0 0
18
g Sioux F at Brandon
0
22
Big Sioux P nr Alcester
•0 C 0 0 0
36
Big Sioux P or Richland
0 0 0 0
30 -
(5,) WQI for 1975 indicated c it cal level concentrations or the period .J n
No 1 7P dat . vailahle Jan S’ip.
X Minor exceedence cf stanuards (for T nperature, CC. and H Only)
o At or approaching critical 5 Above criti: l levels
Jun.
— :rsufficient data
86

-------
Table 15 • TABLE OF CRITICAL STATI0 S AND PARAMETERS.
X Minor ex ,edence of stanoards (for T nperature, D C, and
At or approaching critical • hove critical levels
levels
SOUTH DAKOTA
STATION
OE
KG
Itrate Continued
Belle Fourche R nr Elm Springs
S S
: •
45
2
Belle Fourche R nr Sturgis
•
•
53
1
Whitewood Cr at Pluma
Whitewood Cr nr Whitewood
0
0 0 0
43
3
0
Phosphorus
I
Cheyenne R nr Buffalo Gap
• S
0 1
•
:
Cheyenne fi nr Eagle Butte
I
56
Big Sioux R nr Waterton
5
•
•• •
73
Big Sioux R nr Brookings
•
•
o
S
o
Big Sioux R nr Dell Rapids
0
—
29
Big Sioux flat Sioux Falls
S
• S
•
• *
••
• • •
96
1
Sic Sioux R at Brandon
9 S1ouxRatCantOfl
S
5
•
• •
100
3
.
Big Sioux R nr Hudson
•
L
0
S • •
Sioux R nr Alcester
.
—
—
88
4
Big Sioux R nr Richiand
James R nr Hecla
S

I I
S • S

James Rat Columbia
James R nr Stratford
James R abv Huron
0 5 s 0
— —
S • 0
73
S
•
• 0 5
70
James R at Huron
•
S •
5
65
James R blw Huron
•
James R abv Mitchell
•
0
52
James R biw Mitchell
James P nr Scotland
S
0
56
•
S I
0
52
James R nr Yankton
•
32
White R nr Oglala
• S
30
White R nr Kadoka
0 0 5
33
White P nr Oacoma
• •• • 5 5
62
Little White R r r White River
55 55 5 5 5 5
pH only)
87
— Insufficient data

-------
Table it • TABLE OF CR2TIC L STA 1CWS AND PAR METERS.
X Minor exceedence of stanoards (for Teiiperature, CC, and pH any)
o At or approaching critical • Above critical levels
levels
88
STATION
JAN FE6{ APRMAY:JLN JULAUCSEPOCT Cv DE
Pho ,orus_Continued
Raoid rnrFamin dale
:.. • S S 05
SeileFourche_at Y-SC Line
.
EelleFourche F nr Sturgis
1
Belle Fourche R nr Elr Springs
S 0 0
3E
French Cr nr Custer
0 •;•0 0 S S
65
White .’ood Cr at Pluma
• 0
44
Whitewood Cr nr Deaawood
0
0
:
WhitewoodCrnrWhjtewood
0
-—I
Fall F at Mouth
0
•
42
Granc S at Little Eagle
• 0
26
Key aPahaRnrWewala
0: 0
2O
Boxeider Cr at New Underwood
•. • 0 •
:
89 6
Vennifl ion S nr Wakonda
0 S :
32
Ve iilior PnrVermillion
°
e illion S nr Chancellor
0
18
42
Whetstone S nr Big Stone City
• •
Little Minnesota S nr Peever
S 0
26
Turb djtv
Cheyenne S at Edgeront
,
°
White F nr Oacona
S S 5
82
Ealle Fourche Rat WY—SD Line
: 0 • •:
28
Belle Fourche F or Eicn Springs
0 5 55
0
Grand P. at Little Eagle
• • S 0 5
32
T t 1 Dissolved Solids
:
Cheyenne S at Edgeront
S — 5 5
61 1
Cheyenne S biw Ar-gesture Oar
S 0 0
47
Cheyenne S or Buffalo Gap
0 0 0 0 000 0
:
Cheyenne R nr Wasta 05 0 0
46
Cheyenne S or Plainview
I • 0 0 0 I S
7 5
— r.sufficier,t data

-------
Table 5 TABLE OF CR T2CAL STAT1O S A D PARAMETERS.
X Minor exceedence of stan rds (fcr Tenperature, CC, and pH only)
o At or approacning critical • critjcai levels
levels
SOUTH DAKOTA
STATION
JAN rEa ARAP H YJuN JUL.AkJOSEPOCT OV OE
K
Total r; snlve Colids Continued
Cheyenne C nr Eaçle Butte
James R abv Huron
•
0 5
4C

James B abv Mitchell
0
31
James P biw Mitchell
JameS P nr Scctland
Jatijes P or Yankton
Verililior. P nr Ver nillion
0
0 0
0 I

26
31
31
Belle Fourche at WY-SD Line
0 5 S i
41
Belle Fourche P nr Belle Fourche
0 0 0 I 0
Belle FcurcheCnrtturgis

Mcreau R or Usta
Si 5 I 0 0 0 OIf
5h1 !t.L 0 f±!
54 H
9 L
0 5
l Fork Grand P or Shadel ill
•
65 2
Fcr , naRnrP pn
•
— 0 15
s
B d ° nr Ft. Pierre
I
5
40
Susoenaed Sedirent
37
James P or Scotland
0 0
James P nr Yankton
0
15
Big Sioux R abv Watertown
.
in
Big Sioux F at Brandon
0
Bi Sioux P at Canton
Big Sicux P or Hudson
0
0 :
20
c
• 0
28
Big Sioux F nr Alcester
I I • :
32
Big Sioux P or Richiand
0 S 0
35
White P nr Oglala
I • S S
46
White P nr Kadoka
I • • S I I I 1
69 4
Wh iteRnrOacona
0 I • I_•S•_______
93 1
Little White P or White iver
Bolle Fource B at WY-SO Line
• 005 f
0
59 5
to
89
— ri5uf1’icjent cata

-------
Table 15 . TABLE OF CRITICAL STATiOI S AN PARAJ iETERS.
\ Minor exceedence of slanuards (for T iperature, CC, and pH only)
a At or approaching cr tlca1 • Above critical iev€1
levels
90
STATION
JAN FEB M JAP YJUN JULOUC SEP OCT OV CE
PKC
Cu ended Sedirnert ontinu d
:‘
Belle Fcurche P nr Belle Fourche • I
27
Belle Fourche P nr Sturcis
S S S
40
Belle Fourche P nr Elr Sorings
2ed ater P at Belle Fo jrche
. S
91 2
•
Rapid Cr nr Farmingd.ale
5
—
22
Whitewood Cr at Pluma
1
WhitewoodCr nr Whitewood
•
Fail RatMcuth
!
lB
Grand P at Little Eagle
1 • • 1
72 3
Bad R nr Ft. Pierre
• • •
•
53 6
Keya Paha nr Wewela
Moreau R nr Whitehorse
a nt ’ •
41
19
S
Little issouri P at Ca ro Crook
•
— irsuf iciert data

-------
Table 15 • TP BLE OF CRTICAL ST,TiO A D P R METE? S.
SOUTH DAKOTA
STATION
AN FES PP M YJUN JUL UOSEPOCT OV DE
WQ R G.
Trace Metals
Big Sioux P
at Sioux Falls
,
I

21
Hg
21
Ja res P nr
Scctland
hg
21
Grand P at
Little Eagle
I

} g
24

:

:
.
tif H
.
91

-------
u. WRiLI QUALITY TREND TABLE —
Stations and Parameters where Significant Statistical SOUTH DAKOTA
Differences were Observed.
1 rcTr er c
4_r -4, =
:: , -c rer, C . ’ , — ,, . , , , —
C - —
= C —
C C I’
ncentr,t1on, are —4 ‘—‘ — —,
C 12a le.. , —( C C
rt , C C -” 1,”, C . ’,
>4 —
- < —
‘ ,
SA lON
isso’jri R. @ Oahe Dan
1issouri R. @ Pierre
!-lissouri P. @ Big Bend Dam
;

3
1

Cheyenne P. bi Angostura Dam
I
Cheyenne P. nr Wa ta
I
Bin Sioux R. ab Waterton
!*
1
Big Sioux P. nr Brookings
D
Big Sioux P. in Sioux Falls
0
U
Big Sioux R. nr Dell Rapids
1
Big Sioux R. N. Cliff Ave.
gSiouxP.E.of on
I
111
P
I
L
±11
‘Zn
Big C oux R. nr Richland
D
James P. nr Hecla
I
—
I
j
-
Jazes P. Coltrbi
0*
James P (aHuror
D*
James P. bhi Mitchell
7e illion P. W. of Chancellor
—
1*
-
White_River nr Oglala
attle Creek nr Keystone
I
I
1*
1
I i
Capid Creek bl Pactola Dam
I
I
e1le Fourche P. WY—SD Line
0
3eIIe Fourche P. bi Elm Springs
— -—- —— - -
pearfish Cr. in Dpearfish
I
I
—
——
——
ed Water R. B Belle Fourche
I
ad River nr Pierre
0*
L
,_J ’IIII
rench Cr. Caster St. Park
I
3
rench Cr. nr Custer
i D
I
hi tewood Cr. D Plurna
I*
Ihitewood Cr. or Deadwood
1* —
thitewood Cr. or Whitewood
1*
mr ng Cr. SW of Raoid
I
1*

-
a11 River or Confluence
—

92

-------
UTAH
pended Sediment
1. Jordan R at Newstate Road
2. San Juan R or Bluff
3. Price R at Woodside
4. Green R at Green River
5. White R at Mouth
1. San Rafael
2. San Juan P
3. Colorado R
4. Colorado R
5. Price R at
R or Green River
nr Bluff
at Moab
at Cisco
Woodside
1. Malad R or Plymouth
2. San Rafael R or Green River
3. Price R at Woodside
4. Dolores R nr Cisco
5. Virgin R or St George
WQ I *
97
68
53
43
45
70
75
61
57
55
* Average annua
60 signifies
greater than
1. White P at
2. Green P at
3. San Juan P
4. San Rafael
5. Colorado R
6. Green R nr
Mouth
Green P
nr Bluff
R nr Green River
or Cisco
Jensen
7
72
70
71
67
100
Table 17. Ranking of Critical Water Quality Stations by Pollutant Group
hos p ho rus
Tu rb i dj y
Dissolved Solids
79
76
71
46
52
1 water quality indicator (WQI) value. A range from 20 to
exceedence of water quality standards/criteria and the WQI
60 represents exceedences of a severe nature.
93

-------
‘; r’ \r p VrLro. C PU’p ‘TA’r1
11 ‘T! I ; 111 S
R A’ !ITA oy pfl4D
‘TT T ’
P AP\II r r)l”I . ’ D lv P 51°
2 lAP
A 0 Hi VFP r i’ T POAD
4’)jSfl5
1” 0 ’A AT ArCH TV ’PTn ! PflAU
3 11’T! 1U(
lf’ ’IA! PTV! W AIFI,DW 1flRflA’ i EAT
71t’TA II 49 1 57A
cpA ;( P— !PTF H WI TP T’lIIF 4T
4q 57-1
0A RTV F F1flW GR—H11?TFP JWTP
2 TAA 4015 1 ’
¶1I fl r PTV R AT 2100 SI1IITH
, lTtrAW 49153R
Tr op . pivr r1 T,fl S’ 1 W ITP
4915 /12
1n IA PTV P AT ‘P1PC,A ON 4TH 1fl
7 I PTAU 4 91c43
r POl PTVFR AT 000 I’D RFr1 flflD
71!TA H 491544
1Iu rA PTV ’P ‘Jrt p I 7TP JflPTH
491545
IrPnAo PTVFP AT (‘tiDAlly !,AIJ(’
7 I IITA4
o pTv p Jil ,rr, 5’l n41JJ S WWTP
4°15P0
jr’r’A ; /—STATi. C1; ‘ .S1ATE RD
T fl AUG PAR -METEP RCUP COVERAGE.
Water aHty Oata for Year 19?8 — Utah
c j r ir;;
!-‘ c
usr
-c ,,c c’ . c t j IT Ptr 5 Ti,r- çrtv r S( 7’ l? l rltTr
A’’ 0 AT I
71 I!TAI.4
. fltoA” RIVFR
7 I TA ‘I
,Ifl0 ’A’ PT VF2
21 1 11 AP
111011 I VPP
2 H
A’’ PT V P
2 UT 1°
“I PT VVP
2 1’’TAP
, r’ ’ PTVFP
71 ‘‘TAP
1n1 rA0 PTV P
21 uTAH
PAVFP
21 UTAH
7 0( . 50 1 1TH
‘191 50!,
A 1 ‘71IDfl ADD\JT 5T 1 Jfly
491 50 11
HFLflI, SAi!DY W’ TP
491 51 (1
Al’ 711r)fl S1117 ’IP
491514
ARIIVF I(FAP!JS qWTP
401 51 ’
fl Lfl ; V Ap1l5 WWTP
49151
AP°VF /IIPRAY ‘ (WTP
401 57 (1
HcT D i MHRR AY fl 1P
491574
AR( ’VF 1011DM; ‘4FAT
401525
7
7
17
5
17
4
11
4
10
5
14
1
1
4
1
I
I
4
1
7
1
1
4
1
1
1
4
1
2
3
3
6
3
2
1
5
3
15
5
1
1
3
3
6
3
2
2
7
4
2
4
4
I i
4
4
2
4
4
17
4
3 4 5
4
7
3
16
5

-------
I l l
fliP T £1 F fl rA’( ‘ i AP onfli nfl
I j’’rn 001 1050.2
rnrr,p r’n or A0 rio lrrAO
21 0T P
rn lr,0 T r’r W T 151 cpr s51lI(
2lI rAiL
rt ’T .JPAPU t I’fl lJ. 7”R I11T!
rrioP ri PTVFR AT 11Trr1 ’AY PRIU
49nF 10
pfaCQ TV I AT l’T—T )A STATF LTr)F
10097200
R F C POI 50 ‘hA ll
7 1 1,1A 0 4q 1477
PfA PTVFR F T fl PTCuMn hr ’
7 I II1AU 40j479
OrAl P1V’ ’R I’ 1n CONFI A TT’4 CIJhl
491413
1.’ AT FIP? IT.1’.A
lnI7F t (10
OFAP RTVFW t 1 I rh Pf’U(F NR
1 7 ’Dfl lfl13F 5( 1fl
Pfl) AT CATF AY IITM4
1 ( 11?Q300
W P PIVFP lP DpflA IITIIR
11? !Pfl 1 ( 113(1500
WFRrR DTVF P “FAR rOrliVTLTE uTAH
?1!IT A I4 49l4 (
‘4!.P4 P p • (IROVV (;F T FRFP W hTP
211 114 14 49t4 1P
F ET PTVV fl lflW C ’ 1 T14AT Pf PEP
I I? Pfl I Old I I 0(1
5 (11 1TH 1iDV FRFI, PTVFP iP IIUT1PF.P
j ( 1141 Ic ’i
TPF1 k 0P ( b ’FPu P 14 VFq tl
1 l?JPO 1 1 1141) 00
HflPl U F0DV WFI1F’P PT’,IVP JJ • ( flflOF
I I7NPP
I V P AP (‘lF ’ pA1.l • III AH
1 17’PI i flQ7c 1flfl 0
(PF ‘ PT lIf14 Pr.’A) j’ -flSF o
2 Ph i
C ( .PI Pfl/ ) AT ( 0FFfl H1i.JFP, IbTAI4
1 12 1Pfl 1r h175 0r
‘ fl,Afl P HP rTY’ ’1iflTH ‘ITAH
II7 P r’ 1flIh fl 0O
PPrilJrh PIVAP Ar 2001 10 hT M l
2 II IT AI I 4 14 1cC 0
POfl’l0 P I15, P CPI1SS1 ‘O—OOTARY Pl
Tabic 15 (Ccntir ed). STPTION Afl - - ‘ETE GROIJF COVEP C .
4 tor uaflty Data for Yea - — Utah
SI T r1(’ r
rTS
550
T ’p I’ll p P11 Pl ’5 — fl11 ’i SIlT 311 ‘- ‘i 1Flh
to 10
S
12 10 i 10 7 10 in Ii Sui
7.7 70 27 I’) I 52
S S 5 19
I?
l 54
11 11
to 1-
9 1
to r
7
24
in g i
0 10 7
2
7.
7
I ;
19
I i
7
I?
I?
IS
.7
a
3
14
10 ui
—4
=
3 1 1
4 15

-------
?1!l1M-
PPnvn p—urpr r ’ r T is r j
Ii 2’’PP I fl I c7C )
cpp rsu F19 IAVF :
71l TM-’ 4974
I P ’’flI t 1 I l F C1 VP 1
1(737or
I1FAVFP Ply t T rAcvlr,T :• ‘!TA-
7tIIT W 4Q417P
HlFT P WIVc P ( t In çnM ni r tç
1l?WP l)
SFTVFW Ply I P TIJAP IITAIl
102 17 nfl C)
S ..V7 C4 RTV P f Tl SAl PTTCIJ P
117Pfl 1D191 flfl
5 . V R RTVFP PFIrlW Pl3 PAl P
7II ITAP 494965
FvTFP PTVFR ‘:FAR ATCH
ll7 i’Pfl 10189000
FAST FORK S VT R PIVFP PIFAP
I I7 P1) 092347( 10
P fl 17 F AR I)’’TCH IDHK • ‘ITA Cl
t0 112w P l ’ flQ2RP1 0
STPA ’ PFPPY PjV p !FICR OI1CHFS 1 IE,
I17 PP
fl l(’ TV PTV P Ip RAI!fliFTT, ‘t
11? P I) 0ql0 6’,r o
WI4ITF p r p A r lStlN Ill
Ii 7 ’ RD 0 93fl 6 9 00
C4 C1T RIVFP lIT 1 0flTH IFAP I ICPAY
7I l’TAl
3 ORIP(W AR ‘fl COAL CO
t i?wPn 093j45 0(l
PRICF PTVFP AT l(l)SlPF. llTAl
Sa n PAFAFT RTVFP NEAR ( .T Fn PIF
l 7 :pfl 091 Pflll0()
r’nt,pvs ‘i’ i P PiJ. 4 CTSCI ,T’T.
117.’FI) 00333500
PIPTY PF’T1t P %p pn7SflTi SR ‘A •‘P
? IT ITTsP 495707
SA l ThAN R— 1151 6fl CPllsSPl(
112 .l’P 093795 00
SA IIIAI PIVEP “FAR PIIIVF, ITA”
?1JTT A N 4 S1 77
KA lAfl CK AR KA 1P WWTP r ITFAi,T
iS (Continued). DIATIOL AND PAN ETE GPC ’P CC ERAGE.
Water Quality Data for Year 1975 — Utah
c7 4Th” vrr l
rT
csp
Tl-O On c Cr1 .TT 01105 T0 P cc r)T T1 Iy3 r ( 5
7
A
,
A
7
IA
a
a
H
7
9
7
H
16
H
24
7
8
Q
A
A
6
4
7
4
71
3
12
7
7
A
A
7
7
7
2
6
6
6
3
4
3
1
3
14
•1
g
P
a
ID
8
9
9
9
71
16
87
18
6
2
4
t4
4
21
1(1
4
14
73
11
13
IC’
17
34
14
4
75
14
56
I I)
10
10
11)
ID
3D
lhl
9
28
13
11
13
ID
12
10
.6
¶8
10
32
13
Ii
13
6 ,
2 i
A
A
15
9
10
0
1
2’
10
‘
¶2
1(
7
1
2
7
7
1

-------
Table 19 • TABLE OF OR TCAL STATIOND AND PARANETERS.
UTAH
C ATION
J N M- R PP N YJUN JULOUGSEP OCT DV DE
AVG
WDI RKC.
Teroer3ture
Green R at Green River
X
San Tafaci R or Green F ver
Virr n P nrSt. Gecrqe
I I
ssc ve O,oycen
:
;
Green P or Greendale
X
f:
l
ColoraooRat4oab
:
X
Fecal oliforr Bacteria
.
I
12
jte R at
:

San Juan P nr Bluff
28
Nitnitc nitrate
!
.
. L _L______
0
Jor ar’ P biw S Davis
I 0
Jordan P at :e,istate Rd
I 0
3
oho onhor’j
I
—
Jordan P biw urray W iTP
Jcroan P biw Jordan Meat
I i
0
.

Jordan P biw Sr-Hunter
0
-- . . y_ _ _____
- - —--.____
.- -.
L lQraduR VS udb
Green 2 rr Ouray
• ...!!
¶:.
,
._......

X Minor exceedence of stanuor s (for T oerature, DO, and pH only)
At or pcroaching critical I Above critical levels
levels
— Irsuff cjent da:a
97

-------
Table 19 TABLE OF cR:T:cAL ST TIC S AND PARfij tETERS.
X Minor exceedence of standards (far Te,ioerature, DO, and p only)
At or approaching critical • Above critical levels
levels
STATION
AN
FE5 M APP YJUN JUL UCCE?OCT 0V DEi WS IRKG
Pb so orus Continued
i
I
Green Rat Green River
0
S 0
43 4
hite P at Mcutn
-
•
o,• • •
4
Price P at Woodside
Sari Rafael RnrGreen River
0
•
53 3
-
39
0
Sanjuanpr,rBluff
•
• •
6B 2
.
Virgin R nr St. George
.
I
I
28
Color r Cisco
Green P nr jen5en
0
•
:
37
I
Turbidity
-
i
Colorado R nr Cisco, UT
1
S
57 4
Colorado P atMoab
5 •
•
61 3
Green Rat Dinosaur Nati Park
51
Green P rir Ouray
I
Green Rat Green River
1
GuchesnePnrRandlett
White P nr watson
L L 4 JiOuth
0
.
15
41
Price P at Wocidside
I
S 5
55 5
San Rafael P r,r Green River
5
0 • 5 5 0
70 1
San Juan P nr Bluff
•
75 2
Santa Clara P rir t. Gecrqe
.
Total Dissolved Solids
:
Jordan R blw Utah Lake
0
35
Jordan R biw Sandy fl •fp
01
1
-
Jordan R at Newstate Rd
Sevier P abv Gunni son Bend
1 0 0
46
Sevier R blw San Pitc i P.
39
DuchesneR nr Randlett
0 0
0 5 • S •
PriceR at Woodside
•
71 3
76 2
S n Rafael P nr Green River
S • •
5 • S • S •
-
p_ta Clara P nr St. George
0
52 5
Vir;inR nr St. George
• • •
Sevier P nr Juab
0 0
45
— insufficient cata
98

-------
Table 19 TABLE OF CRITICAL STATIONS AND PARA METERS.
STATION
JAN F 5 APR (JUN JUL.AUGSEP OCT OV 3E
TQI J ’ GiOus

Dolores P rir c sco -
-.________________
! !! •
1
• i • • •
• Q
45 4
y evil R abv Pc sor Sp 9 S W
h S •
46
Susoended Sedinient -__________
,
Colorado P nr Cisco
0 •
67 5
GreenR nr Greendale
I
13;
Green P nr Jensen
•
•
•
1001 6
Green P at Green River
•
•
72:
a nivnle
•
13
White Rnr Watson
°
64
WhitePat Mouth
• •
•
• •
72 1
Sari Juan P nr 5 jff
• 0 •
•
• S
70 3
ColoradoRat Me b
DuchesnaRnrRandlett
Price P at Woodside
• • •

5
•
45
18 1
47 : —
0
San Rafael nr Green River
S S • • 0
- 71 4 ——
Ii -
H
H
X Minor exceedence of stanoards for T perature, DO, and pH only)
o At or approaching critical • Above critical levels
levels
99
— :nsufficient data
UTAH

-------
Table 19 TABLE CF CRITICAL STATIONS AND PARA ’1ETERS.
STOTION
I
JAFEBM APR YiJU N iJULU c SEPCCT OVjOE
VG
WQI IR G
1race eta1
I I
Jordan b w Utah Lake
I
.21
]ordan at Bluffd le Pd
--—- .-——.—-
Jordan P at Newstate l d
-
Hg
21
._r_—
21
—-—-—-
21
— - -

.-_________
Colorado P. nr Cisco
22
Hg
23
Hg
21
Hg,
21
Colorado P nr Moab
Hg
21
21
H
21
Green R at Dinosaur Nati Park
Hg
21
L.__________________
,

Green Rat Green River
Hg
21
.
.
Hg
21
Provo nr Sprir gdel1
Hg
21
Cu p
35
I
Beaver Rat Adarsville
.
.
SevierRabv Gun son Bend__
—
Sevier R nr Hatch
YirgLn R nr t. George
Hg
— 22
— —
—
Hg
.31
,
— -
I
ii
i_i
I
100

-------
— C 2 C C - C
r n — — = — C
L I ’ r - C C LI’ LI’
C LI ’ — r C LIfi C C
C rn -: — — —
C C C — —
> — nfl . .
C C —r C nfl
C 2 -< C
nfl o ( I , LI’ (I’
>0 C C
1 — ...i
- nradn R v r n cc
.
l’
Waber R. G tei ,ay
D
0
Weber R. nr Coalvilie
—
Green River nr Greendale
0
Green River @ Green River
I
T

White R. nr Watson
I
White P. P Mouth nr Ouray
0*
San Juan R. nr Bluff
0*
1
I
Viroin P. SE of St. George
L
11111
ii
i
ii
ii
ii
ii
ii
I
L TE IC
2 lrtnr
C Cenradind Trend
Parameter Concentrations art
a: criictl iene1
I

•
I

•
——H__
T

-
—,_
— —
I
—
—I
— -:
—


Table 20. WATER QUALITY TREND TABLE.
Stations and Parameters where Significant Statistical
Differences were Observed.
UTAH
101

-------
WYOMING
Iable 21. Ranki .aof Critical Water Quality Stations by Pollutant Group
Fecal Coliforiri Bacteria WQI*
1. N Platte R biw Casper 37
Phosphorus
1. Laramie R at Howell 73
2. Laramie R at Two Rivers 63
3. Belle Fourche R biw Moorcroft 44
4. Powder R at Arvada 32
Turbidity
1. Powder R nr Kaycee 48
2. Big Horn R at Kane 38
Dissolved Solids
1. Salt Cr nr Sussex 84
2. Beaver Cr nr Newcastle 68
3. Belle Fourche R biw Moorcroft 57
4. Powder R at Arvada 52
Suspended Sediment
1. Powder R at Arvada 100
2. Big Horn R at Kane 73
3. Salt Cr nr Sussex 69
4. Shoshone R nr Lovell 55
5. N Platte R at Orin 54
* Average annual water quality indicator (WQI) value. A range from 20 to
60 signifies exceedence of water quality standards/criteria and the WQI
greater than 60 represents exceedences of severe nature.
102

-------
sr ITT IIIJ
( TV pTv p AT v.APPj’ Pirr,r,
11 pr,
C.PI PIVFP 1•:AP RTr, p1rF . Y .
I I P1) r iq7nn4r f l)
‘P k’yr)
117 i .WI’ flY211 2 0fl
(PF ;’i P R T. V4)MT F1 tf PFS yr)
112 P
ç,pFF PIVF.P AT ¶ T( 1.c Arr, ¶JF4P
‘fl0531
r.pFrN iv :p AT IIs(; 0Q7 170fl0
117 PP O°2 17O’ O
r i:l i . ‘iP rRc’rM PIvrP •
117 PI) (19717010
(RFf ’ PIVVP Et 1b (RF.Fj’ PIVEP :y
112L P0 ( ‘ 3I75fl0
PflWI)Fp PTVFR MFAP I(AYCFI. Wy0
7twyfl lSS 00 03R 5
p wr P M ’AP SIISSVX WYI1MTNC
7 IWYPI 1 S S OO( 514
pWri p i TVFP AT ! 15(5 06317(10”
1 12w 1 1t) 0 63 17 00o
PI1W 1WP 9 AT APVAOA 1 fl
7juyPIlss (1003( 19
! r1PTI PLATTF N— .A5T rW SARATOGA
“I PT.ATTV P AP 5I M1PSflV RES ?R sTr
1 17 1 ’Pfl 6420(10
P4OPTR P1 ATT P AT A1C(1VA WYO
0 664 50 ”()
PIOPTLI P AT1F F TVFP PT CASPEf Vfl
1i,wPn 06646800
PJ,ATTF R PR ( F(POCK Yr1
71WV0’! S.S “0(1400
NOPTR PI1 TTF SrlI;TR fl r1 r6S
I1,wPfl 06657000
MrlPi 1 p A’J’TF P AT (1PT • WYO.
06657900
( 1c R P1ATT 9T P Wi.0’ Gt, ’T’
1I7 0fl
iIrIPTW PT.ATTW P t TFPt SVy PF,
T 17wPt 0664400 5
(JPPTI4 PGAETI PTtVP AT T! ,S Yfl
117WPP
1flRTAf P1ATTr P1vi D ?FfIP LTI”OLF.
71wyr’”sc
‘4PT.AT rV l• C(’P TT ’ PA JP 1)
117’’PP
?J PI?ITT p T 1 rip STATF LT,
Ta ie 22. STAT1Ot 6340 PA 34ETER GROUP COVERAGE.
9ater Quality Data for year 1978 — Iyoming
TFP
fin
CPT,1
r4TT
P!’ S
TI!9I
SnITE ’ Sfl1 I
3 ‘ TI A!S
75
Ii
12
14
71
35
Ii
12
2
12
15
9
24
9
31
17
13
11
24
¶5
24
4’)
76
12
7R
76,
12
13
10
23
17
74
39
24
11
14
1?
P
12
12
74
12
76 ’ 17 17 I I 14 14 75 19
14 12 1? ii 14 13 12 75
14 12 P 12 13 14 1 23
14 12
12
2
I
1 75
15 47
73
4
9
4
¶4
¶6
9
3(1
1
1
1
1
1
1
2
17
17
2
12
12
17
12
19
17
12
7
12
12
1.
12
19
26
24
26
24
37
26
7.
64
7
12
12
12
1
I
1
1
1
72
11
7
11
11
11
11
21
11
11
2
10
Ii
11
11
h
3
12
1)
1.
23
73
71
71
73
7
2
2
2
4
7
7 1
11
0
11
11
11
22
¶3

-------
Table 22 (Continued). STATION AND P A5-ETER GR0U DOVE AGE.
Wator Oual5ty Data for Year 19 8 - Wyomina
1 ‘ 1O
ll7YOf
‘ I ’ ’ l• 1 l- P l AO rI1 c ,7s .111
7y{’t 5; flfl 3O7
U CPc F ; -ApT rA’ .10
Ii 7:PC r l A77gnc ln
‘JHp P T PI” U10T ‘VU
1) 7 Pj 0F , l r lfl
WT 1) PIVFP ? r rvs ri pr NP
1i vpr ’ fl A? SQ 00 0
.11 r ’ 5;r t4;-s - ‘v0
117 ,00 r ,ç?5qSnn
F T(I4(1F ” PTVFfP AT TF4FPM(Wfll, IS, Y
?)t.YOWSS
1”r—P14( N W F- lIST flF’ t.tCEP’ 5;
l 17 r, r 7 ,47flfl
RI ( U P I P1 V F- P FI t I .ID R”F , wyri
I I7WPI)
RTC,14r 1p ” P lIT wfl T,AUfl ‘ t)
2 lwvtw.cs en l a n
I F- I C.Ul P ’j P r . flP OPIJI UP W 10
11 7 .50fl PA71Q ,PA
P lCI’flR P AT I ANF . yrl
Ii7 J’fl r ’A731on )
o LITTIF- jfn P 4R(1VF APAI’rI4flF . y
l1)’ ,P
11 1 ’TIV % 7Nfl P “P UIVF- T0N ‘qyn
11 7 ; P0 nA73cO( - l()
RF AVFR CPE I’ P PAPAHflE WYO
1125-’Pn r , 1q4flr ,()
i ’ ( lIF-lI0 VF-I.CASTLF, ;vn
(I A 7 I I (10
lflSUfl’’F- PIVFR I l.r’ l- tlF-FAi(1 f( 1J,
P7 90 51
cunsun - qTvvc At r py C 7 ’R CnDY,
I ‘4PP
5r1.çanPlF- P’ r — ‘F p T,(1VF-.I.F w In
? lflS 00 0 1R6
SIF I ’F 5.5 ‘flF5 FRcI ”I CARtA fl
fl A? P R (1 51 (1
TI”C,I’ L 1TVF’P UP °l (YT0’ WYP
117 JPP
TflP’(FlF PTV P AT “0 ’C ‘Vl’
OA I I 1400
SA ,T PI( ?V1 .0 .PR 5F-’y, Wyfl
t12F- ’ l) fA3 74r)fl0
CLFJIP CRrE!< “ I F - I ) APVAOF- ‘. yfl
2twvn .c
CI,FAP CR FF-ST CI I1UFrM r, vyr ’ j J(
1j2 ’ Pr , 42AS 0r ’
Rf:T,, ,r u1lI9CUF P ?FP FT I)% “11( 1 PCR
5;’ c
551
tr I13 TF-1 .c
-r ‘c-
nn
UCAl
cni
1
2 - 0 s
100k
55 I
curiO
17
12
(‘
10
17
‘7
¶0
17
7
7
7
7
1
2
2
.
TI
1°
1°
11
11
10
Ii
14
12
A
1?
1.
¶2
13
14
11
10
12
12
11
27
3
28
1
1
1
1
I
1
1
7
1
11
2
2
7
12
12
7
14
P
12
17
12
2
2
2
2
1
2
2
3
2
20
1?
7
12
12
1?
12
71
F,
12
A
12
17
17
12
6
13
13
11
A
I
A
S
A
11
1
2
¶3
lB
1
16
I
3
11
e
11
11
9
17
12
17
7
12
13
¶1
19
2.
7
7
2
74
7
74
10
2
2
2
2
1
2
2
3
2
12
1
1
12
9
1
14
11
13
1.
13
14
12
78
1.1
78
71
ii
11
21
U
25
1
10
35
77
11
14
i
26
16
12
31
73
14
78
1
1
1
1
1
1
7
I
23
13
13
12
14
17
13
75
¶7
14
2R

-------
Table 22 (Continued). ST T1OH D A ETE GROUP CO R1 Gt.
\ ater Quality Data for ‘(ear \97e - ‘ yoming
sr I ‘UT’
—
hfl pLI c ’ I
•JI•11 c
flis slIi;p
5flT lfl flLT
IF
70
77 7
IF
23 IA
3 2
0 7
7
TV ’
IT
D U15
ThoR
17 t
- I cur 1vIl Ii I IVTI,c r’’
¶ 1
7
Ii
11
¶ 1
i
Pfl ‘flflDrHF 11 V—cr STATf I
2fl
1.1
11
I 1
21
12
Ii
7’. Rflc ’
A’ ur r pa c ik
1
9
(
In
‘
I
ii . ‘r n7 C h’u
“r’.’P.’CT P TVP AT rfll’T ’ • ‘ ‘AP
¶7
9
7
7
I?
17
9
r) 30n
! . V1 ’ tTF P PTV ’U C’AI PI,C(’VA, 4Y
¶7
I?
7
17
1
12
12
71 yr ’tcS n n 17 ’)4
r 1 P P ‘W ,1’Vr FY CITY
7
2
2
7
1
2
2
2 4
PS 1 Arrc TATIfl!1
117.or ,
t,ADr ’t RTV P AT f n !-1T. WY
12
Ii
1
12
12
7 (1
n ( O
PIVFP r Twil utvvPs. W’(
12
P
12
12
20
117’ 0r
T ,J (O ”TF’ P!’7 L M ( FT 1.APA’-11F2 WYI1
10
U
7
.
ii
ii
11
2,
nc c,15 ( 1n
I .TTTT. ’ T,A A TF RIVFR AT TWO RTV
12
R
17
1?
7(1
:
71 Yr ’WSS (1003(19
T.P , ‘1 p • c ri W FATLA D
1
1
1
1
2
1 1, .Pfl 1007 ( 110(1
PFAD PTVIR APflVF P ’.s RVflTP NFAR
15
3
3
3
7
7
3
IF
1 0O774)0’
T 1 C0IPK AT SA , ’ Y()
79
11
1
11
14
13
2P
42
l17 P 0 t ’1 010 00
P T 0flPI)F I V
2.
12
13
12
74.
74
7(1
46
71 ‘ Y SS ( 1(i ( 11P7
RF.A(. p $TATF PQ 4T( 1fl.AY WYfl
1
1
1
1
1
1
1
7
117 T’O 1 30275 0n
P VF ’P AP p ’ FPVr1Tp ¶JP 1pJ
IF
11
F
12
12
12
12
¶ I 7 ,°f I 3fl 1! (10(1
S lAv , J1 ’FP EAP •.lflI At1
5
1 I ( 1I 1c ’0
PJlfl-P FAR vT .cflI ‘ y(1l. T J(
? 1’ Vr 1 4,cS 00 ( 1397
R S(1T!TW OF IACkS0H .iV1i1 INC.
11, Dr) 13fl27 ( IO
SAlT PT%1 10 A PF.SFPVI1TP ¶19 FT JA
IF
11
P
12
12
i2
1
76
71 ‘Y 4SS n , ( l3Qq
SII(FP cp ¶‘— ‘Sr 1W ST ICLATP WVC .
7
7
7
2
7
2
7
4
12
I
17 12 7a
17 12 56

-------
Table 23 TABLE OF CRt ICAL ST TI0WS AND PARA iETERS.
ST4TION
j N ES 4PR M Y J N JUL. JGSEP CT 0V 3
PKG.
Te rnerature
Beaver Cr nr Newcastle
x
Oissclved Oxvoen ( DC)
I
N Platte R at WY-NB line
•
Salt Cr nr Sessex
0
x
nr Sinclair
X
X
-o
i
Shoshone P. bl Buffalo Bill Res
x x
Lararnie Rat Two RIvers
x
E c lCoJlfo Bacter1a
:
-
Powder R nr Kaycee
0
0 0
29
NP1atteR51 asper
• •
°
1 Horn P at ane
0
22
Belle Fourche P biw Mocrcroft
0
22
SuQar Cr nr Sinclair
.
N trate
line
0
- __Belle Fourche biw Moorcroft
Phos h ru
•
22
Powder P nr 3yCPe
H r trIrw: r -
N Matte P nr C enrock
0
•o
0_0
0
30 —
32
3
N Platte F at Cnn
0
21 -
N Platte P nr Linale
•
Wind F nr Dubois
•
22
Wir dP at Crowheart Dan
Wind P biw Wonland
°
-
0
X Minor exceedence of stanocrds (for T nperature, D , and pH only)
At or approaching critical • .bove critical leve s
levels
106
* insufficient data

-------
Table 23 . TABLE CF CRTICAL STATDNS AND PAR!.iIETESS.
X ,nor exceedence of stanuards
o At or approaching crItical
levels
WYOMING
STATION
JAN FB5M ARRM Y JUN JUL UCSEPOC7 OV DE
RKC
Contir ed
.
Beaver Cr nr Arapahoe
Beaver Cr nr Newcastle
Shoshone P nr Garland
0
19

•
—
44 3
Salt Cr nr Sussex
• I
Be e ourcheRblw floorcroft
• • S
Oi 0
Belle Fourche R at WY-SD line
!
—
16
Sweetwater Cr nr Alcove
0
_
etwaterCrnrdeffrevCity
Laram ieR atHowefl
• s 5__
°
• .
Lararie P at Two Rivers
I
0 I S I
63 2
Twin Cr at Sage
!
L
14
.
Sugar Cr nr Sinclair
W
I
V
;

;
.
Turbid y
Green P nr La Barge
0
io
Green P nr Green River
0
13
P blw Green RIver
0
Powder P nr Kaycee
0
• S
48
Powder P at Arvada
• 0
35
N Platte P blw Casoer
I
• •
24
N Platte P at Cnn
0
26
N Platte P at Mills
I 0
Wind P at Crowheart Da
—
.
Wind P blw Worland
,
Big lorn Rat Kane
.
38
Beaver Cr nr Newcastle
— — 0
Shoshone P nr Garland
S
Tongue R at Monarch
0
eireRblwMOorcr t
0 5 5
(for T noerature, CC, and pH only)
• Above critical levels
107
— rsufficient data

-------
Table 23 . TA6L OF CRTICAL STATIOi S ND pARAMETERS.
STATI0 4
(AVG
W FE5M APP Y:JuN JULZJG SEP CC O J GEO uc i PKG.
Turbidity Continued
Belle Fourche P at Devils Tower
0
20
Belle Fourche P at WY-SO line -
0
28
I in Cr at Sace
0 S
29
Sear P at Border
0
ia
Total Dissolved Solids
:
Powder P at rvada
5 0 0 0 0 I
I 0 0 0
62 4
P rCrn a

SaltCrnr$ussex
0 0
g,
••I O lOS

.00
— —
• SO
6812
• 5; 1
• 5 S
841
Belle_Fourche P bl Moorcrcft
• •
0 0
0 00 0
57 3
SelleFourche F at Devils Tower
0 0
34
ia -ct
S ar Cr nr Sinclair
0
I I •
000
41!
— Twin Cr at Sage
27
Sus enoedSedirnent
Green P nr Big Piney
o
S
19
Green P nr La Barr e
0
Green R nr Green Diver
S
Powder P at Arvada
1 • I S 5
100 1 —
N Platte P at Cnn
5 I
N Platte P at WY-NB line
•
•
!
Big Horn P at Kane
I
I 5
‘

‘3
Shoshone R nr Lovel 1
0 15 5
55 4
Salt Cr r z
Clear Cr nr Arvada
1 • 5
0 I 0
693
I I
35
Belle F urche P 51w oorcroft
S I 0
37
Larar’ie P r.r Ft. Lararie
I
Twin Cr at Sa
. I • 1
43
Bear P at Border
0
15
Belle Fourche P at WY-SD line
0
10 —
24
N Platte P 51w Casoer ——
5
X Minor exceedence of staroaros (for Thiperature, CC) and pH only)
o At or approaching critical 5 Above critical levels
levels
108
— :r.sufficient ata

-------
I able 2’- . WATER QUALITY TREND TABLE.
Stations and Parameters where Significant Statistical WYOMING
Differences were Observed.
-j z - -
— — = C — -
In, r v1flC Trtnt = ( /1 ‘ —1 v’ c t —
Lzt U ’ —
C ‘-‘ C - — —
, gractng T tr t r— = ‘ = — U’
> < — ,- C — =
— > z . rn
rar,rete— Concintratiens art C 0 0 -< 0 0
at crttc.i ),o,1 r’ C U’
O 0 C C
-C —
C - —
0 0
B larren Brioge
.
reer. B. r,r Lab3rge
D D
Green R. bi Fontenelle Res.
I_
3
Green P. B Big Island
I
i
Powder River nr Kaycee
i
Powder River B Arvada
I
North Platte P. ab Seninoe Res.
North Platte B. B lcova
3
U
U
North Platte B. blw Cocper
3
1*
3*
0
North Platte nr Glen Rock
3*
3
North Platte R. B Orin
0
D
North Platte R. B Mills
0
—
—
3*
3
North Platte R. B WY—NB Line
0
0
ind River nr Dubois
0
D
Big Horn River B Lucerne
0
D
Big Horn River B Worland
0
Big Horn River B Kane
3
Shoshofle P. biw Buffalo 6111
0
3
I
ShoshOfle R. nr LovelT
0
Tongue P. nr Dayton
D
0
Salt Creek nr Sussex
3*
Clear Creek nr Arvada
D
Belie Fcurche R biw Noorcrcft
3
D
3*
Belle Fourche R. B Devils Tower
‘
D
I
Belle Fourche U WY-SD Line
D
Sweetwater B. nr Alcova
0
Lararrie R. B Two Rivers
.ittle Lararnie R. B Two Rivers
—
I
3
Twin Creek B Sage
I
0*
Snake River ab Res. nr Aloine
I
—
Salt River ab Res. Etna
3
3
—
.
log

-------
110

-------
SECTION IV
AIR QUALITY REPORT
111

-------
112

-------
SUMMARY AND CONCLUSIONS
Air Quality
Trend analyses performed on the 1976, 1977 and 1978 air quality data
available in the SAROAD system indicates that 24 of the 91 counties
where sufficient data were available experienced statistically signifi-
cant changes (improved or deteriorated) for at least one pollutant group.
A severity analysis of the 1978 air quality data shows that total
suspended particulates continues to present the most wide-spread
pollutant problem in this region where the 12 of the 17 counties which
exceeded the primary standard also exceeded alert levels. Four counties
exceeded the sulfur dioxide standard and 10 counties exceeded the carbon
monoxide standard.
A comparison of the findings of this report and the report titled
EPA-908/2-78-OO1, Water And Air Quality Trends in Region VIII ” which
included data for 1974-1976 reveals that levels for suspended particulate,
sulfur dioxide, and nitrogen dioxide generally remained at approximately
the same levels over the two time periods. There was a significant
decrease in the number of counties exhibiting carbon monoxide standards
violations both in Colorado and Utah. Ozone violations decreased in
Colorado.
113

-------
OVERALL REGIONAL AIR QUALITY
The color coded maps which are displayed on the following pages generally
reflects the air quality for the worst site in each county of the region on a
pollutant by pollutant basis. 1978 data analyzed for severity was used to
construct these graphics.
Table 25.
Sumary of Air Monitoring in
Region VIII in 1978
Total sites
Counties with data
Counties exceeding primary standard
Counties exceeding alert level
Counties with deteriorating air
qual ity
Counties with improving air quality
Counties with insufficient data or
no discernible trend
14 3 3 5 1
113 44 46 11 15
Total number of counties: 293
1 U.S. EPA. “Guideline for Public Reporting of Daily Air Quality ——
Pollutant Standards Index (PSI),” EPA 450/2—76—013, August 1976.
2 Instrumentation measures ozone which is the primary constituent of
oxidants.
TSP
S02
N02
CO
Oxidants
(ozone) 2
283
7
67
27
27
480
130
49
50
17
20
266
27
2
013
4
46
11
2
0
3
1
17
3
2
3
26
229
114

-------
/ / I
H T’
- - : :-
L \
—
ç - -- •
L,
\ - L L JL . - L -- \— .\
/1 _ j—---------— TOTAL SUSPENDED PARTICULATES
, 1 __
—— _______ LJJ Insufficient Data
I - uiiIIJ Primary Level Exceeded
____ Alert Level Exceeded
- - I —
L41r’ 1 1 iT±iF
AIR DUALITY STAflJS
No Evidence Standard Exceeded
i rr7ô
- JJIo

-------
116

-------
SULFUR DIOXIDE
IJ Insufficient Data
T1 No Evidence Standard Exceeded
Primary Level Exceeded
Alert Level Exceeded
AIR ((JALIV( STATUS - 3978

-------
118

-------
2 :
r -. •k . I - I —
\ ii I I I — -
L H_ ’L _
I j \ — —\ __
- I I — -- .5 . — - ___
H — - : : i
‘ T r -
- - -
— - - - - I
— — _ .._“ a
-c- -L- - F\
-
I I NITROGEN DIOXIDE
.: -J ‘ I
I -‘ -- - ‘“ ___
I _j H -— L_IL Insufficient Data
—- .—-- __
I -- - I LJJ No Evidence Standard Exceeded
I 1- ——-_L. -—
I / .-—. uT 1 Primary Level Exceeded
I- L Alert Level Exceeded
- I — 1 —
I
I - I —- * — - —
1 -
AIR WALIIY STA1IJS - 1978

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120

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—,----‘
/ / ( —
/ - I — - r
JJ’ ’
-— -1 1 I —
I I - I r - - - - ‘ i - \
L J
— 1 j
17 & 1
fTc Lf

T

CARBON MONOXIDE
r
I 7---- - 1
- ii Insufficient Data
i J No Evidence Standard Exceeded
/ - — _._ Primary Level Exceeded
I - - -— — -
- - ] —-- ---r Alert Level Exceeded
I — - H-
I - -i Ji - 7 - —
I - - -. - —— —-——— L —-
I
j
AIR JALI1Y STA11JS
-3278

-------
122

-------
! - _ _ LT± -!
LJ I I I —
1
iJt L ]
I L
( l T: - - : -
(I I L
:? _ ‘\

OZONE
-L i
AIR IJAL STA]1JS
H TI
— )_ 1_ .
I I Insufficient Data
1 • ] No Evidence Standard Exceeded
t 1 12 ppm Level Exceeded
20 ppm Level Exceeded
-1978

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124

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AIR QUALITY STANDARDS
The Environmental Protection Agency has been given the authority to
establish ambient air quality standards which specify, for the principal
and most widespread classes of air pollutants, limitations necessary to
protect the public health and welfare. These pollutants currently are
total suspended particulate matter, sulfur dioxide, nitrogen dioxide,
ozone, and carbon monoxide. Standards for lead have recently been
proposed.
Two types of standards were established. Primary standards are set
at levels to protect human health. Secondary standards are set at levels
to protect against other forms of damage to such things as vegetation and
materials. The numerical vdlu - of * ach standard is listed in Appendix B.
Several causes and the health effects of these pollutants are shown
below;
TSP is a measurement of particles In the a 1 r
(such as soot, mist, and sprays) and includes
non—toxic materials (dust and dirt) as well as
toxic materials (lead, asbestos, sulfates).
Natural and man-made sources contribute to
TSP which affects the respiratory system in
varying degrees depending on particle size
and chemical composition.
Sulfur dioxide (SO), the most common form of
SOz In the atmosphere, results from combustion
of coal and gas or as a by-product in mineral
smelting operations. S02 reacts readily with
other atmospheric pollutants to form sulfates,
a group of compounds responsible for
respiratory ailments (bronchitis, emphysema
and asthma) and the aggravation of heart
disease.
125

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NO 2 is a brown gas formed during high
temperature combustion (automobile engines,
power plant boilers), N02 can affect lung
tissue, reduce resistance to disease,
contribute to bronchitis or pneumonia, and
aggravate chronic lung disease. It reacts
with hydrocarbon in the presence of sunlight
to produce photochemical oxidants.
CO is a colorless, odorless, tasteless gas—-
a toxic product of combustion. The
automobile engine represents the major single
source of this pollutant. CO in the lungs
reduces the oxygen available to tissues and
decreases heart and mental functions, visual
perception and general alertness. For those
with heart and lung problems, CO presents a
life—threatening situation.
Photochemical Oxidant compounds are formed
by a complex series of chemical reactions
occurring when hydrocarbons and nitrogen
oxides from motor vehicles or other
emission sources are exposed to sunlight.
Ozone, the critical constituent in
oxidants, is a severe irritant to mucous
membranes and may reduce lung function
or aggravate existing lung disorders.
126

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ANALYTICAL PROCEDURES - AIR
Status and Severity Analysis
Status and severity of air quality are determined by comparing
measurements made at monitoring stations to air pollution standards. The
indicator used to characterize air quality status in this manner was the
number of days in which measurements exceed the primary standards at the
worst site in each county. The indicator may not actually represent air
quality for the entire county, however the worst site is always selected
in an area where measured concentrations are affecting some segment of
the population.
Another indicator is used to demonstrate the severity of the problem.
Each pollutant has been assigned an alert level, the t oncentration at
which the public must be notifieii of possible dvcrse health affects.
These values shown in Appendix C are significantly higher than the
standards and are not frequently encountered.
These two indicators correspond to. break points in the Pollutant
Standards Index (PSI) which is becoming the nationwide index for
reporting air quality levels to the public. In the PSI the worst site
pollutant concentration in each metropolitan area is chosen, and the
index is calculated from the concentration at the site referenced to
primary standards and alert levels. These methods are detailed by
pollutant in Appendix D.
Irend Analysis
Most research Indicates that air pollutants are log-normally
distributed. Utilizing this as .umption, the relationship between
127

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normally and log—normally distributed variables can be exploited in
formulating statistics that are useful In trend analysis. The statistic
that is a confidence interval estimate of the location of the underlying
distribution is usually the one used, since significant differences in
such a statistic suggests significant differences in the locations of the
distributions in question. In other words, each year has its own dis-
tribution and any significant location shifts from year—to-year would
indicate significant shifts in pollutant concentration. Since the
location of a log-normal distribution is a difficult parameter for which
to formulate a confidence interval, the method 0 f forming a confidence
interval around the location (mean) of the accompanying normal distribu •
tion was used. The bounds on the confidence interval were then converted
back to actual concentration fori . Since more than one interval was
computed for each trend determination, the Bonferronii technique was
utilized, which yielded a family confidence for whatever number of Intervals
that were to be constructed. The method used is as follows:
(1) Take the natural log of every observation, for a particular yr.
(2) find =
n
(3) find s =IE(lnx)2 - (zlnx) 2
n
n-i
(4) construct confidence interval using:
A) lower bound = - ts
B) upper bound + ts
Where t=table, t-value chosen to yield an approximate
90-95% family confidence
1. 28

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(5) convert back to original concentration form by doing:
A) new lower bound = elOWer bound
B) new upper bound eupper bound
Each confidence interval for each year is then inspected for any
overlaps. Overlapping years indicate those years to be insignificantly
different whereas non-overlapping years indicate significant shifts In
the geometric mean concentrations. The relative locations of the inter-
vals along a real number line indicates whether or not the concentrations
are increasing or decreasing.
129

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AIR QUALITY NON-ATTAiNMENT AREAS
On March 3, 1978 the Federal Register set forth the attainment status
of all states in relation to the national ambient air quality standards
(NAAQS). Table 26 indicates, on a state by state, pollutant by pollutant
basis the attainment status of every area as submitted by each of the
appropriate state agencies in Region VIII and approved, or as designated
by the Environmental Protection Agency. No distinctions have been made
as to the severity of the violations recorded in the areas designated
by nonattainment in this table. Current status (1978) for each county
containing a nonattainment area in Region VIII is graphically described
on annotated maps in the section dealing with state summaries.
130

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TABLE 26.
EPA NON-ATTAINMENT AREAS IN REGION VIII
FEDERAL REGISTER - MARCH 3, 1978
TSP 502 !02 CO Ox
Montana Coistrip Area P
City of Columbia Falls p
City of Missoula P
Missoula Area S
Billings Area S
Great Falls Area S
Butte Area S
East Helena Area S PS
Laurel Area p
Anaconda Area PS
City of Bil1in s p
Yellowstone County p
Rosebud County
So. Dak. Rapid City Area P
Utah Davis County S p
Salt Lake County P PS P P
Utah County P P
Weber County P p
City of Price p
Cedar City S PS
Tooele Ccur.ty
Uintah County
City of Bountiful p
City of Ogden p
City of Provo p
Wyoming Trona Industrial Area p
Sweetwater County
Cob. Larimer-Weld P P
designated area
Denver Designated Area P p p P
Cob. Springs 3-C P p
Pueblo 3-C P
Mesa Designated Area P
El Paso County p
Ft. CollIns-Greeley
P - Does not meet primary standard
S - Does not meet secondary standard
131

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132

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SECTION V
STATE AIR QUALITY SUMMARIES
33

-------
134

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STATE AIR QUALITY SUMMARIES
General Description
The following three graphics appear for each state summary that is
contained in this section:
1. Number of Days that the Primary Standard or Alert Level
was Exceeded .
A bar chart compares 1976, 1977, and 1978 data. Primary standard and
alert violations are recorded for the worst site in the county. For
those pollutants reporting only yearly average primary standard viola-
tions or those reporting no violations, the county was on;itted. If no
data or insufficient data (75% ( f all possible data) were indicated, the
county was omitted. One or more primary standard daily and/or alert
level exceedenceS is shown even though more than one primary level con-
centration is required for a primary standard violation.
2. Status and Trends in Air Quality
A county chart showing current status and trends by nollutunt for the
worst station in the county. If no data or insufficient data were avail-
able in the county, arrows were not shown. Status was determined using
1978 data. Counties with primary standard and/or alert level exceedences
are shown. Trends were determined by comparing the geometric means of
1976, 1977, and 1978 data. Ozone status is based on a 3—year average of
1 hour primary level violations.
3. Non-Attainment Areas
The status of counties containing non-attainment areas is shown by parameter.
If no indication is given, the county did not have a non-attainment area
designation in the March 3, 1978, Federal Register non-attainment area list.
In some cases it appears that the status has changed in certain of these
non-attainment areas.
135

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COLORADO
136

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TABLE 27.
STATIONS USED FOR TRENDS AI4D/OR STATUS DETERMINATION
COLORADO
ty TSP SO2 N02 CO Ox
Adams 060020001F01 062210001F01 062210001F01 062210001F01 062210001F0.
Al amos a 06004000 1FO1
Arapahoe 060780001F01
Archul eta 060100001F01
Boul der 060200001F01
Clear Creek 060360001F01
Del ta 06054000 1FO1
Denver 060580002F01 O6O5800O FO1 O60580OO2A3 060580010F01 060580009F01
Doug 1 as 060660001F 01
Eagle 060700001F01
tJ Paso 060380004F01 060380004F01 060380004F01
Fremont 060800001F01
Garfield 060880001F01
Gunni son 06].040002F01
Huerfano 062180001F01
Jefferson 060720001F01 060120001F01 060120001F01 060120001F01
La Plata 060680003F01
Larirner 061480002F01
Las Animas 062160002F01
Logan 062080001 FOl
Mesa 060980010F01
Moffat 060480001F01
Montezuma 061530003F03
Montrose 061620001F01
137

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TABLE 27 (CONTINUED)
COLORADO
County TSP S02 N02 Co
Morgan 6O28OOO1FO1
Otero 061900001F01
Pitkin 061780001F01
Prowers 061280001F01
Pueblo 061820003F01
Routt 061920003F01
Welds 062220004F01 061000005F1)1 061000005101
138

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NUMBER OF DAYS THAT PRIMARY STANDARD OR ALERT LEVEL WAS EXCEEDED
(Days/Year)
COLORADO
TOTAL SUSPENDED PARTICULATES
County (City ) 0 10 20 30
Archuleta (Pagosa Springs)
Boulder (Longmont)
Denver (Denver)
Eagle (Vail)
Fremont (Canon City)
Garfield (Rifle)
Moffat (Craig)
Otero (Rocky Ford)
Pitkin (Aspen)
Prowers (Lamar)
Pueblo (Pueblo)
Routt (Steamboat Springs)
Weld (La Salle)
Primary level exceeded
Alert level exceeded
139

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NUMBER OF DAYS THAT PRIMARY STANDARD OR ALERT LEVEL WAS EXCEEDED
(Days! Year)
COLORADO
CARBON MONOXIDE
County (City)
Adams (Welby) 1976
1977
1978
Denver (Denver)
El Paso (Colorado Springs)
Jefferson (Arvada)
Weld (Greeley)
1977
1978
County (City)
Adams (Welby)
Denver (Denver)
Jefferson (A,wada)
0 20
OZONE
Primary level exceeded
Alert level exceeded
140
40
120
140
0
10
1971
20
30
I

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TAfl 1 ANt) tNt :Nu IN AII’ ()tJAL.LTY
COLORADO
O2 N02 CO Ox (ozone)
J(’ 1 1’r on
La Plat
Larimer
Las Animas
Loj’;i i
Moffat
! fon to r m 4
Otero
Pitkin
Prowers
Pueblo
Rout.t
Weld
T P
t
0
0
0
0
No evidence standard exceeded
Exceeds primary standard
Exceeds alert level
Increasing trend (deterioration)
No apparent trend
Decreasing trend (improvement)
Only
141
O2 N02 CO Ox(OZi. )
Alamosa
Arapahoe
Archu1( ta
Clear Creek
Delta
C
El Paso
Premon t
Garfield
Guririlgon
‘r p
0
0
/ Status Based on Annual Mean

-------
M OtIALETY STI’TUS 1972
COLOPJ\D() -
1ot -!\ITAI t1E rr ! REJ\S
TomL SUSPENDED PARTICULATES
Insufficient ata (less than 75% of maximum possible
cbservatl ofls)
No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non attainment area is in part or li of annotated
counties,
The worst station in the county is used to
represent the county.
142

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AIR QUALITY STATUS - 1978
COLORADO -
iiON-A1TAI 1E1’ff /\REAS
1ITROGEN DIOXIDE
Insufficient Qata (less than 75% of maximum possib’e
observations)
I o Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non attair1fl’eflt area is in part or all of annotated
counties.
The worst station In the county is used to
represent the county.
143

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‘AI QUALITY S1AThS - 1978
COLORADO -
kN ATFA I NMENT AREAS
CARBON ft)NOXIDE

Insufficient Qata (less than 75% of maximum possible
observati OflS)
No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A r —nttaj nr t t area I r or in l 1 ol annotated
Cif I 1 t
The worst station in the county is used to
represent the county.
w ,z2 i
144

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‘U 11 ALITY SiATtl —
COLORAff) -
I bii-AuAI t’ E1’ff AREAS
OZONE
Insufficient Data (less than 75% of maximum possu
observations)
No Evidence Prim ry Standard Exceeded
.12 PP1I Level Exceeded
.20 PPM Level Exceeded
/\ non attainflient area is in part or all of annotated
counties.
The worst station in the county is used to
represent the county.
t )oc? A
145

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1 tWANA
146

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TABLE 2 .
STATIONS USEI) FOR TRENDS AND/OR STATUS DETERMINATION
MONTANA
County TSP S02 - CO Ox
Big Iorn 270006010F03
Cascade 270660009G01 270660015F01
Daniels 270340003F03
Deer Lodge 270400004F02 27 0400004F02
Flathead 270270005F01
Gallatin 27O12OOO1FC’
Granite 270640005F 02
Jefferson 27076O O3F0
Lewis and Clark 270860002102
Lincoln 270900010F01
McCone 27091300 01F03
ru ssoula 2711000 01G01 271 080003F01
271 100019F01
Rosebud 271360026P03 270310101A08
Silver Cow 271480015F02
Yellowstone 270080008G01 270840009G02
147

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NUMBER OF DAYS THAT PRIMARY STANDARD OR ALERT LEVEL WAS EXCEEDED
(Days/Year)
MONTANA
TOTAL SUSPENDED PARTICULATES
County (City ) 0 20 40 60 80
Missoula (Missoula)
Flathead (Coitmibia Falls)
Lincoln (Libby)
Deer Lodge (Deer Lodge)
Jefferson
Yellowstone (Laurel)
Missoula (Missoula)
Yellowstone (Billings)
ii Prir 1 ;ary level exceeded
Alert levcl exceeded
148
133

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TATV AND TRENDS IN AIR QUALITY
MONTANA
County
13kg Horn
T P

County
Lewis & (Isrk
TSP O2

Cascade
!TJ .
Missoula
i
Deer Lodge’
•
Donohud
r:
Gr ni t(
I I ‘/er’
i:
Jefferson
Yellowstone
No vidncc t:4nd ird ex(:oedod
Exceeds primary standard
Exceeds alert. level
Increasing trend (deterioration)
No apparent trend
Decreasing trend (improvement)
LI
[ !i
0
149

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AlP. 1JALITY STh11JS - 1978
N1N A -
r(r—A1TPI NMFIT AFEAS
______ Insufficient Data (less than 75% of maximum possible
observations)
Mo Evidence Primary Standard Exceeded
____ Primary Standard Exceeded
Alert Standard Exceeded
A non-attainment area is in part or all of annotated
counties.
The worst station in the county is used to
represent the county.
150

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V7f221 1nsuffjci iit Data (less than 75% of maximum possible
observations)
______ No Evidence Primary Standard Exceeded
______ Primary tandard Exceeded
______ A’ert Standard Exceeded
A non-attainment area is in part or all of annotated
counties.
The worst station in the county is used to
represent the county.
151
MR U1Y STA1IJS - 1978
ffA \-
1-P TFAI*EPff 1 REAS

-------
AIR QUALITY STAThS - 1978
fflFANA *
NON- T \TTAJ 1 flE1’ff AREAS
CARBON F ”ONOXIDE
Insuffic ient l ata (less than 75 of maximum possible
observati Ons)
_______ No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non—attainr ent area i in part or all of annotated
counties.
The worst station in the county is used to
represent the county.
152

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AIR QUALITY ST/\TUC - 1978
-
NON- !\UAJ J1 [ NT J ri s
OZONE
Insufficient oata (less than 75% of maximum possible
observations)
_______ o Evidence Primary standard [ \cee.ded
______ .12 PP Level Exceeded
.20 PPM Level Exceeded
P non-attainment area is ir part or all of annotated
counties.
Th worst station in the county is used to
represent the county.
153

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NORTh DAKOT/
154

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TABLE 29.
STATIONS USED FOR TRENDS AND/OR STATUS DETERMINATION
NORTH DAKOTA
County TSP S02 N02
Burley 350100001F01 350200001F03 350100001F01 350200001F03
Bowman 350160001F03
CaSS 350400002F01 350400001F01 350400001F01
Dunn 350340001F03 350340002F03 35O34OC 2FO3
Grand Forks 350480002F01
Grant 350520001F03 3 O OOO1FO3 35O 2OOO1FO3
Hettin Je ’ 35O5 OOO1FO3 350’D(’0001F03 350560’Ylrifl
McKenzie 350700001F03 35O7OOOU1Ft 350700001F03
HCC1 ane 35072000].F03 Y
MerGer 350760001F01 35U7 jUO?F 3507600fl1 mi
(ledora 3500800 01FO3
1orton 3507 1F01 350740001F01 350740001F01
Mountral 1 350820001F03
Oliver 35O860001F03 35O86OO flFO3 35O860001F03 350860001F03
Sheridan 35106 0001F03
Stark 351 140001F03 351140001F03 351)40001FO3
155

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ST1: TRENDS IN AIR QUALITY
NORTH DAKOTA
Co y
TS r
SOz
N02 CO p
(ozone) County
TSP
502
N02
Bil1inc s
[ >
Hettinger
:O
Bowman
,Y ,
1.!cLean
J.
>
>
Burleigh
4J 7 .
E
ierc’r
r
Ca s s
E:
r
t:
i cr tor
c
Dunn
j
01 i v r
Grand Forks
c : >
S ark
E
E
Grant
f
t!ard
LI
0
No evidence standard exceeded
Exceeds primary standard
Exceeds alert level
Increasing trend (deterioration)
lie tpparent trend
Decreasinç trend (improvement)
PJ jLOfle
156

-------
I C ,.
WALWO*TW COMUfIO*
I I
WIT h — —
I —A\
. ,
/
c:u h
T I LLt i i
, u.
II o.tn
SO1f H L JTA
‘___\ L Q 1 I. TO Ih$O ifUh’(h 7

157

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TABLE 30.
STATIONS USED FOR TRENDS AND/OR STATUS DETERMINATION
SOUTH DAKOTA
Count y TSP S02 NO? CO
Bead 1 e 4308200 01F01
Brookin s 430140001F01
Custer 4301 10001FO1 4301 10001FO1 4301 10001FO1
Hughes 431340001F01
Perkins 431320001F03
Penriington 431380001F01
Minnehaha 431480001P1J1
Yankton 431800001F03
158

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S02 N02
STA1ti: P [ ) TRENDS IN AIR QUALITY
SOUTH DAKOTA
County TSP
Beadle
Custer
Minnehaha
Penninqton
Perkins
Yankton
flo evidence standard exceeded
Exceeds prirnary standard
Exceeds alert level
Increasing trend (deterioration)
Uo apparent trend
Decreasing trend (improvement)
159

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Al R EJALITY SWIJS - 1978
SO liii DAKOTA -
NON- AuAI 1’IIENT I EAS
Insufficient Data (less than 75% of maximum possible
observations)
No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non-attainment area is in part or all of cnnotated
counties.
worsL taticn in th LourIty is used to
represent the county.
TOTAL SUSPENDED PARTICULATES
C&MPSLL MC P*4II SOt4
VIZ/7 4
160

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Lf AH
161

-------
TABLE 31.
STATIONS USED FOR TRLNDS AND/OR SlA11J DETERMINATION
UTA h
County TSP — SO NO 2 CO _____________
Carbon 460780001F01 460780001F01
Davis 460060001F01 460060001F01 460060001F01 460060001F01 460060001F01
Iron 460160001F01
Kane 460400002F03
Millard 460560001F01
Salt Lake 460520001F02 460520001F02 460920001P01 460920001F01 460920001F01
Tooele 461160001F01 461lG 1OO1FO1
Utah 46122OOO1F ]1 460800001F01 460800001F01 460800001F01
Weber 460680001F01 460680001F01 460680001F01 460680001F01
162

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DUMBER OF DAYS THAT PRIMARY STANDARD OR ALERT LEVEL WAS EXCEEDED
County (City)
Salt Lake (riagna)
Salt Lake (Magna)
Salt Lake (Salt Lake)
Utah (Provo)
Wel)er (Oqden)
(Days/Year)
UTAH
TOTAL SUSPENDED PARTICULATES
Davis (Bountiful)
Sale Lake (Salt Lake)
0
r Lrirnary level exceeded
Alert level exceeded
0 20 4D 80 100
OZONE
20
40
60
80
163

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County
Davis
Emery
Iron
Kane
Millard
Salt Lake
Tooele
Ui ntah
Utah
Weber
TSP
0
Jr
S02
0
NO2
U
CO
(ozone)
S1, TUS NIP TRENDS IN AIR QUALITY
UTA h
El No evidence standard exceeded
Exceeds primary standard
Exceeds alert level
Increasing trend (deterioration)
No apparent trend
Decreasing trend (improvement)
164

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AIR QUALITY STATUS - 1978
CffAH-
NON -AUAI ItIENT AREAS
PART ICULATES
Insufflqerit Qata (less than 75% of maximum Possible
o serva 0 Sj
No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non-attainment area is I i ’ part or all of annotated
counties..
The worst station in the county Is used to
represent the county.
165

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AIR QUALITY STA11JS - 1978
UTAH -
1or -AuAIr’iiEr’rr /\p As
SULFUR DIOXIDE
Insufficient ata (less than 7 of maximum possible
observations)
No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non-attainment area is in part or all of arnotated
counties.
The worst station in the County is used to
represent the county.
V77774
oQQc
166

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AIR IUALII( STATUS - 1078
ITAH
bN-AuAIr’t1Er’rr Ai s
cARBOII I’ bNOXIDE
Insufficient Data (less than 75% of maximum possible
observati ens)
No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non—attainment area is in part or all of annotated
counties
The worst station in the county is used to
represent the county.
167

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AIR JALI1Y ST’ JU — 1978
urpJ1-
NON—ATFALNMENT AREAS
Insufficient Data (less than 75% of maximum possible
observations)
tk) Evidence Primary Standard
.12 PPM Level Exceeded
.20 PPM Level Exceeded
A non-attainment area is it’ part or all of annotated
counties.
The worst station In the county is used to
represent the county.
y ZfA
ooo x1
168

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WOMllX3
169

-------
TABLE 32.
STATIONS USED FOR TRENDS AND/OR STATUS DETERMINATION
WYOMING
County TSP SOa N02
Carbon 520580001F01
Big Horn 5200400 01F01
Converse 520180001F03 520180006F03 520180006F03
Crook 520200002F03
Fremont 520600001F01
Doski n 520300003F03
Johnston 520360001F03
Laramie 520140001F01 520140001F01 520140001F 01
Lincoln 520440002F01
Natrona 520 12 0 0 01F01 520120001F01 5 20120001F01
Sheridan 520660002F01
Subi ette 520680001F01
Platte 520830001F01
Sweetwater 520700001F01
Teton 520720001F01
Iiinta 520240001F01
Washaki e 520840001F 01
Weston 520820001F03 520820001F03
170

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SIfTUS D TREft S IN AIR QUALITY
WYOMING
County
TSP
O2
U02
County
TSP
502 t02
Albany
tiatrona
c ’
Big Horn
Nicbrar
Carbon
Park
f ,
Converse
E ’
l tte
c:
Crook
r
Sheridan
Fremont
Slette
Gosheii
5weetwatz r
Johnson
•i::: :;
Uinta
c
Laramie
E::::::
i
Washakie
j
Lincoln
Weston
EJ
0
0
!J Status Based Ofl Annual Mean
No evidence standard exceeded
Exceeds primary standard
Exceeds alert level
Increasing trend (deterioration)
No apparent trend
Decreasing trend (Improvement)
Only
171

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AIR QUALITY STA11JS - 1978
WY flING -
ibN-i\UAI 1ENT /\REAS
Insufficient Data (‘ess than 75% of maximum possible
observations)
No Evidence Primary Standard Exceeded
Primary Standard Exceeded
Alert Standard Exceeded
A non- attainment area is ir part or all of annotated
counties.
The worst station in the county is used to
represent the county.
. r.p..... ._ . J
c 4
172

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iik r LJ
A. Severity Curves fcr at r Qu 1it ’ r ers
B. National M!b1Pfl Mv fluality Standards
C. Breakpoints for P 1iuLaut Standards Indax
D. Procedures Used to Determine Status
E. National Aerometric Data Bank - State Inventory by
P01 1 utant
173

-------
174

-------
Figure A—i. Severity Curves for Water Quality Parameters.
IU 1 4
wulu
t4Jt
I I I -4--4—t-- I
8 12 IS 20 24 28 32
TEIIPEMIURE DE lI-C
I I
4
* e
90
80
U
0
60
U
S.
Hi
4,
3,,
2 0
I.
00-
I ,
I. -
30
00
I,-
- -I
‘I ,
1 1 1 1*0
I1U
,u
5..
V I II . .
flt(
-
36
I’
0
V
A
L
U
£
II
0
V
A
L
U
I
I00
/
50
40
3,
20
le
M I
YIt I *V
11 1*
I -,4 Il4I ——- I -I-I IlIfI — Ii $ II”’I —,
II III III . assee
TOTAL C0I4F0I* ‘*I 5 L
4—144 I ’I—4—-4-1 4 i4
I001 0 5 1.0100
a 4
9 *0 I I 12 *3 14
DISSOLVED OXV OEH flG.’L
7.0 es
PH UNITS
9.0 10.0 11.1
— —4 —
—# ‘—-I -4-4 ’4-M+I ——4---4 — -1 4 4 • $-j99M ——— I VI III 4’ .4 4-+44I4 —, -
1 5 *0 5 1 1 15 5055 *50050 •, is as as 1535314045 IS 1111 ISle
rE s0L c014?Olfl /30 1 5 1. 175 150*51510 .urnou 5 0/ I. Al N

-------
Figure A—I (Continued). Severity Curves for Water Quality Parameters.
A S
L
4..
3,
, , . . V V ! F1 T
0*0 •.ee 1.30 1.41 1.50 0.10 0.70 I I I 0,90 3 .
TOTAL PHOSPHOROLJI flO’L Al P
• • SR
S
0
I
A
I .
U
£
! V - — F
21 2 5 31 35 40 45 50
OIL I ShAll I Q/L
80
70
40
3*-
€5 I I 75
——
105
90
80
70
ft.
S..
40 -
30
£0 -
I.
U
0
U
A
1.
U
£
U
0
V
A
I.
U
£
5.
4.-
30-
I.
I, ,
9,-
U.
7,
U
0
I SI
U
- 4 5•.
L
40-
3,
OS-
l,
U
U
A
I .
U
£
— —
I. IS
I I I
— —
176

-------
Figure A—i (Continued). Severity Curves for Water Quality Parameters.
r g 1—I I I lit
Ill 2000 3100 4010 000 6000 7000
CONIWCWflTV ur ftO’Cfl
U
U
A
I.
40
SI I II 150 100 100 300 350 400 450 505
TOTAL ØSEIU C (104
0 20 I I 41 50 II 70 U P . 100 10 12
TOTAL CADMIWI (104
U1
60
V
A SI
L
40’
30’
20
I I
. It u
“te l
$t4
I I I I I ‘I I j . i , I I I I I I I
10 1 ,0 *0 00 00 300 350 410 40 00
TOTAL ceero UI /I
l b
9,
I,
10
I
I •
S..
U
4,.
3,-
ft
to ’
50 *00 *50 II I
su ,prnpi
90
Be
3,-
1 I-
100’
N.
70-
S
* SI-
‘ I
A SI
I.
‘I
0 40-
3.-
20
* 0-
IlIUM
/
I _ F I I I I , I I
100 200 300 400 100 DI 700 000 VII *000
TOTAL CHROUUM (164 177

-------
iyui ft —i ‘ orn inued). Severity Curves (or Water Qu . dity Parameters.
I 80
U
0
U
A
I.
U
E
U
0
I
V
A
I .
U
E
20 400 000 00 OO• 1200 1408
TOTAl. 1.180 1304
I. , ,
I ”
U.-
00
70
U
a
I 60-
V
A 9
I.
3,-
2 0
to
U
a
I
V
A
I.
U
I
t a I
tee
—
90
I0
7.
a a I I a . ill
•.c a.e 1.0 2.0 2.0 3.1 3.0 4.0 4.0 0.0 0.5 0.4’ 00 40 SC I I Ill *10 *40 IS O I$
TOTAL I101CI*Y UG’l. TOTAL CYANIDI (104
U
a
U
A
1.
U
I
*11W
30-
a.
II
‘II .
178

-------
APPENDIX B
National Ambient Air Quality Standards
179

-------
APPEI4DIX C
Breakpoints For Pollutant
Standzirds Index
(Includes Alert Level For Each Pollutant)
181

-------
Breakpoints for PSI ( ) in Metric Units
Breakpoints
.
V
PSI
alue
( p)
TSP
tg/m 3
24-hr.
SO 2
pg/rn 3
24-hr.
TSPxSO2
( g/m 3 ) 2
8
Co
mg/rn 3
hours
03
pg/rn 3
1-hr.
r40 2
pg/rn 3
1-hr.
50% of primary short-
term NAAQS
Primary short-term NAAQS
50
100
75
260
80a
365
b
b
5.0
10.0
118
235
b
b
Alert Level
200
375
800
65x10 3
17.0
400
1130
Warning Level
300
625
1600
261x13 3
34.0
800
2260
Emergency Level
400
875
2100
393x10 3
46.0
1000
3000
Significant Harm Level
500
1000
2620
490x10 3
57.5
1200
3750
aAnnual primary NAAQS.
bNO index value reported at concentration levels below those specified by the Alert level
criteria.

-------
APPEI M,X D
Procedures used To Determine Status
183

-------
PROCEDURES USED TO DETERMINE STATUS
TOTAL SUSPENDED PARTICULATES
1. Select worst site in each county based on
o Number of days per year greater than 260 pg/ni 3 ,
o Data available in 1978
o Population exposure of site. Should be
representative of populated area of county
2. For the selected site, th actual number of days greater
than 260 pg/rn 3 for each year (1976-1978)
3. For same site, number of days with at least one value
greater than 375 pg/rn 3 .
184

-------
SULFUR DIOXIDE
1. Select worst site in each county based on
o Population exposure. Must be in area where
people are present
o Representativeness within county
o Number of days per year greater than 24-hour
average of 365 tg/m 3
o Data available in 1978
2. For the selected site, nut’ber of days per year greater
than primary 24-hour standard for three year period
(1976—1978)
o Actual data used
o Continuous data preferred over noncontinuous
3. For same site count number of days with at least one value
greater than 800 zg/m 3
o Actual data used
Trends
1. Analysis done only for counties with 3 or more years of data
2. Judgeinents based on
o Number of days per year over standard
o Annual average
185

-------
NITROGE 4 DIOXIDE
1. Select worst site In each county based on
o Highest annual average
o Data available in 1978
2. Determine whether annual average is greater than 100 pg/rn 3 ,
average 1976-1978
o Actual data are used
o Years without valid annual average are disregarded
186

-------
CARBON MONOXIDE
1, Select worst site in each county based on
o Number of days greater than 10 mg/n, 3 8-hour average
o Data available for 1978
2. For selected site, count the number of days per yr r (1976-1978),
with at least one 8hcur aver ioe greater than 1) g/m 3 .
Average these yearly v uec.
o For periods with no d t stir te x ning data for
same site for saue period of other ye trc an by looking
at data for other near ’y ‘-1 es
3. For same site count number of days with at least one value
greater than 17 mg/rn 3 .
o Actual number always used
187

-------
OZONE
1. Select worst site in county based on
o Number of days greater than 235 pg/rn 3
o Data available for at least one year (1976-1978),
during the months April through September.
2. For selected site, count the number of days per year
(1976-1978), with at least one hourly value greater than
235 pg/rn 3 .
o For periods with no data, estimate by examining data
from nearby sites and for the same site during same
period of other years.
o Data are insufficient if unavailable during the peak
ozone season (April-September).
3. For same site, count number of days with at least one value
greater than 400 pg/rn 3 .
o Actual number is always used
188

-------
P.PPEN IX E
National Aeronictric Data Bank
State Inventory by Pollutant
189

-------
3 011—79 i! TTflttAt R0TW C J)RTA OAHK PA( 06—0001
s ai : l, ’VF r1ORY rV pIU, tTr NT
CO L. OR 63 ‘0
Pflh—’ 3tt I pr 1j,3rvkt1 r 11P tI INT 3INFT YE#R N3J$ 14#X #R 1TI4
3 I1,W NAI F C()0F 0 1 13 1IAMP COOP C01)P OIlS OHS MPAN
3310191 PAl*TTC(l1,P.TP 06 )2O001 P03 IOAHS C D 7 01 1917 73 421. .7.
7 01 1978 87 255. 107.
060040001 POt At.A?iflSA 7 01 1977 97 433. 77•
7 01 1979 73 202. 60.
060060003 P03 AbAPIOSA CO 7 01 1977 69 75. 17. *
7 01 1978 26 73. 13. *
060090001 P03 ARApA1iO CO 1 01 1971 90 166.
7 01 1978 93 161. 68.
0613080o0? POt ARAPAHOE CO 7 01 1978 14 90. 50. *
060100001 P01 *PCHtfl.ETA CO 7 01 1977 82 403. 118.
7 01 1978 90 354. 173.
060120003 P01 ARVAUA 7 01 1977 77 180. 81.
7 01 1918 80 728. 98.
060140001 POt AIJRI)RA 7 0 1917 77 157. 76.
7 01 1978 95 187. 76.
060200001 P01 9001 .UPR 7 01 1977 81 144. 69.
7 01 1979 59 19.7. Ri.
060240001 POt RRIGRTDN 7 01 1977 75 176. P3.
7 01 1918 84 355. 99.
060260003 P01 HROOMF1EI,I) 7 01 1977 75 t48 66.
7 01 1978 68 200. 76.
060280001 P01 BlUISH 7 01 1977 70 233. 76.
7 01 1978 50 15. 74.
060300001 P01 CANOII CITY 7 01 1977 92 227. 63.
7 01 1979 99 313. 95.
060360001 POt Cf..PAR CRP K C I) 7 0 1977 85 168. 80.
7 01 1978 94 175. 79.
060399004 P03 C0f.OPAL1O SPRINGS 7 03 1977 99 255. 95.
7 ,0I 1979 17 255. 96.
060440002 P01 CORTPZ 7 01 1977 16 79. 49. *
7 01 1979 41 79. 43. *
060490001 P01 CRAIG 7 03 1977 78 346• 117.
7 01 3978 70 322. 135.
060540001 POt flEl,T? 7 01 1977 90 233. 91.
7 fl 1978 89 281. jfl6
060590001 F0 I OF:NVPR 7 01 1977 76 770• 105.
1 01 1918 93 49?. 13?.
060590003 P01 flINVPI 7 01 1977 32 297. 106.
06059000? P01 flF:VVP It 7 01 1978 154 629. 181.
060590002 P’1 F VP13 7 0 1977 56 669. 142.
0b0590003 POt PFNVPP 7 01 3977 7 181. 112. *
060590003 PIl? 0l HVpP 7 01 1977 74 211. 94.
7 03 1979 90 110.
060590007 P01 OKP’VrH 7 03 1977 92 706. 73.
7 01 1978 95 110. 8 I
06o 90on4 r . 7 01 1977 84 ?1%. 79.
7 03 1 Q79 95 25). 99.
P01 tw ’v i 7 03 1977 74 gq . 16 1•
ç\.%. S t,% l7 tU’ C%311 %fl Ps W 0QS c i ’ \s 1,l%1P I . —040 • 3 2.3.0
•*.‘ fl A ‘tl 1 ’ I • s’t t’PslVs N3l3C

-------
tIAq:TUUAT, 4FPI KTI TC PArI* 0411K PACE 06—0(302
srAn. PVF3I7”TPY Y PT.1.IJ3A T
crn p’u t”n
PO ). — 1I1 POL I.IIIAMI SITE A( / T,(}CATIO ’ TNT LflUT AR T1LJ I ) AX ARITH
n’W PP .) CORE CJThF 0115 0115 MEAN
1110191 PA11TICIII.*TF — 06 SRO0j? Efli P :4VFR 7 01 1978 oi 378. 142 , *
fl6( 6(’0flfl1 Eol pilIl(;I.45 7 01 39711 74 269. 111,
040411Q0113 F01 Puk*Pic,o 7 03 1977 90 2111. 16.
7 01 19711 1111 340• 19.
060700001 FOt Ea t,E CO 7 01 3977 53 350, 61.
7 03 1979 43 4611. 30 7.
060700003 En? FAC 1.P CO 7 01 3977 13 280. 114.
060700004 FOl EACLE CO 7 1 3977 55 01.
7 03 1979 49 41?. 115. *
06 7200Ot VU) FOCVWATF.R 7 03 3977 82 1911. 93.
7 03 1979 113 273, 103.
060180001 VOl EHCLF.Wflfl1) 7 03 3977 92 249. 98.
7 03 1979 114 2115. 108.
060800(301 EflI ELOREI4CE 7 01 977 113 202. P3.
7 fl3 19711 114 725. 87 ,
06082000) Pot FURl’ Crn.L 1195 7 01 19fl 71 177. 67.
7 01 3979 75 224, 83 ,
— 06 U8000j POt CARFIF LD C D 1 03 1977 9) 377. 191.
7 01 1978 112 494. 144.
04089Q003 Pot ARE1ELU Ct) 7 1 3977 35 334. 16 .
7 01 1978 51 213. 78. *
O60 . 20fl01 Vol Cf,VIWC)Oo SPRXNCS .7 01 1977 74 194, 73.
7 03 1979 611 165. (‘2.
0450940001 rn c,otp ’p . 7 01 1977 11? 225. 70.
7 01 39 ’43 11 793, 1 14 ,
060980010 V Ol CR4 111) JIJ? CTI(Jtl 7 01 1911 91 1745. 1 14.
7 01 3Q7 as 1411. Rn ,
06091100)) VOl CRAUO JLINC?ION 7 03 1979 11 161• 7 0 , *
061000003 VOl CRFF),EY 7 01 3977 76 224. 72.
7 ‘ 1 1979 74 296. 93,
045 )000004 Vol CRFV),EY 7 03 1917 17 780. 131. *
fl.jlO0 (Uj6 POt CREEI.EY 7 (41 1917 (7 1411. (3. *
7 03 19711 91 291. 77.
06)020001 Vol CUNIITSON 7 03 3917 49 131. 49. 4
7 01 1978 69 193. (‘9.
06 104u002 VA ) CtU1 T.Sfltj (‘0 7 03 1q17 75 173. 9 )•
7 03 1918 111 244. 104.
06* t?000t Pot 1ACKSI)N Cn 7 (41 1971 45. 73. *
4 )6) 17(10(47 vni j*c .s’u C.) 7 03 1977 j 135. 37. *
7 03 3418 64 16. 46.
0(fl4000 1 Eu? .tF’ (tt C l i 7 01 3937 RI 149. 43,
7 01 3979 59 151. (‘0.
°#‘1270001 V Ol l.A •JIIUTA 1 ( 13 1971 91 920. 97.
7 (13 3918 84 765. 7 1 1 ,
0 ( . 12A000T ut 1. Y kirm 7 03 I 77 111 77). 7?.
7 ( I) 3079 90 2I7
O ., )290 1 )0 ) Vol 1.M’AP 7 ( 3 1077 110 1101, 323.
7 03 3q79 9 497
W*, l)VfUWI :! I ) VA I .I 1V oçP ‘ p.p qn 31,TA 4 ) T(’Et P Or :Fi ’ S1’fu I ZAT1$ ’ COT TPPJ A ( T V (IA0P CITTOVIT ME I • 7040 • VI ) ), .C 2 • 3 • 0

-------
NATTflI.I T P(I I TkIC 0 TA 0A IK PAGF. 06—0003
STATE 1IVFITI1RY OT pnr,II,TAPrr
COLOR L fl
P01, —MTM pflI,T,!IT NT SITE Ac,/ I,OCATIOM I; T Il’dIT YEAR RUM MAX ARITH
RAMP C001 PR.) COOP CfltW 085 085 MEAN
1110191 PAIVIICHI,ATF 061300001 o3 1,8 Pf.* 18 CO 3 01 1977 53 280. 50.
( 130oflO2 K)3 IA P1.ATA CO 7 01 1977 121 272. 43.
7 01 1978 75 45. 12. .4
061300003 K4)3 LA PLATA (0 7 1 1977 121 175. 31.
7 01 19713 12 24. 13. *
061320003 Ff1 IA IMER C i i 7 01 1917 14 73. 42. *
061420007 P01 LITTV .FTON 7 01 1971 10 174. 70.
7 01 1970 62 244. 96. *
061460001 POt L0?JGP!0II? 7 01 1977 7Q 185. P2.
7 01 1918 82 563. 101.
061400802 rot l.OVPLANI) 7 01 1971 67 164 80.
7 01 1978 71) 299. 93
0b1500801 V O l t8 111T0(I SPRINGS 7 01 1977 76 358. 92.
7 01 1978 7* 186. 79.
061520001 P01 MESA Co 7 01 1977 90 108. 73.
— 7 01 1978 88 171. 80.
061520002 P0! VF2SA CO 7 flI 1977 87 159. 50.
N.) i 01 1978 .1 224. 49.
061530002 P03 MESA VFRDE MAT PARK 7 01 1977 21 99. 20. *
061530003 P03 MF.cA VERDE NAT PARK 7 01 1977 57 125. 71.
7 01 1978 77 38. 16.
061600004 1(03 MOtITEZUMA Cl) 1 01 1977 112 2f 10. 33.
•1 01 1978 16 42. 13. *
061620001 POt MOPITPOSE 7 01 1977 71 165. 74.
7 01 1978 77 147. 64.
061780001 P01 PITIIN CO 7 01 1977 82 307. 88.
7 0% 1978 57 455. 106.
061870001 P01 PIIFOLO 7 01 1977 88 383. 116.
7 01 19713 87 29Q . 108.
061820003 P01 PU .i ’M) 7 01 1977 87 358• 109.
7 01 1978 7. 301• 106.
061860001 VOl RIO R1,A iCl CO 7 01 1917 78 159. 40.
7 0! 1978 42 138. 62. *
0i51860001 .103 PLANCI’ () 7 01 1977 6 6. 4. *
061860007 VOl P10 MLANCO CO 7 01 1971 88 16!. 62.
7 01 1978 60 2135. 69.
0 b1860002 .103 PIn RLAHCO Ct ’ 7 01 1Q77 10 l0 4 *
( 1.1860003 1j3 ‘ 1 OLAIICO CO 7 01 1977 24 57. 15. *
06186000 ) .103 pIn Ri,AOCI1 CO 7 Oj 1977 10 14. 4. *
fl6l$6000.l .101 F1 ’ I4I,Al Ctl Cfl 7 01 1977 10 39. *
‘ f,1900fli)1 f )t 0 C.y I.OPD 7 01 1977 1313 4713. 1(10.
7 01 1978 82 2 l. 96.
0 t 920003 PCI p ’.tTr CU 7 01 ¶977 613 35 . 137.
7 01 1978 77 9133. 1813.
fl .192OOo4 Vol I’. lT1’ CO 7 (11 1977 7 122. 119. *
7 0% 1978 4!. 99 *
Ot’?0000ul Vi St •’ “ IC’iil , rfl 7 01 1977 7F . 313Q• 100.
19 723. 122. 4
LW Ur .QPS GllIfl %, !UE 1.2—040. VOl. 3, 2.3.0
• 1
N$ flf: ”iiTi.S I . V io.tw ‘ p1n’ ppn- i i ,. i ‘i rn v’ r s ‘ SI 37.A3 ”lno C8 )7 iklI’

-------
10.11—79 ‘lATtiHA!, 7 FP11 FTR1C DATA RANK PAGE 06—0004
5TAT 1P1VF 1’nRY ! Y PR IS1ANT
C0! 0HA ! 0
P0J —MTI4 PnI,f.UVA’IT SITF M;/ ! ocATIuw tOT UNIT YF.AR mIM MAX *9178
CR OP U4 ’ i E C’(mn 1 J FlAME CORE CORP (3P.S OHS MFAN
1110191 P P7Tt J ,ATF 062080001 FRi STERI,ING 7 01 1917 79 647. 98,
7 01 1978 72 217. 82.
0621f,0002 FRI 78 (070*0 7 01 1977 69 272. 72.
7 01 1978 79 109. 53.
062180001 FRI WAL ENI URG 7 01 1977 78 324, 76.
7 01 1978 87 135. 56.
fl62220003 FRI UEF,fl Co 7 01 1977 83 264. 114.
7 01 1918 87 417. 105.
067220004 FRI HElM Co 7 01 1977 91 485. 1 01 .
7 01 2978 95 500. 113.
062220005 FRI WPLI) Co 7 (21 1977 88 232, 77.
7 01 1978 96 770, 85.
062220006 P01 WE!,() CD 7 01 1977 20 866. 216. *
7 01 1978 37 326, 140. *
062240002 Pal WESTMINStER , 01 1977 81 191. 76.
7 01 1978 83 j99. 84.
4210111 CARRON MRNOXIOE 060080002 P01 7 ’HAPAHOE CO 1 (21 1978 3669 13.0 1.9 *
060120002 ro ARVAPA 1 07 1977 8036 23.9 1.9
1 07 1978 7953 27.9 2.3
060200006 P05 000LFIER 1 07 1977 1369 20.0 1.5 *
1 07 1978 2691 15.0 .9 *
060200008 GOS PfltILflER 1 07 1918 693 11.3 1.7 *
060380004 P01 COlORADO SPRINGS 1 97 1977 7724 16.0 1.8
1 07 1978 9016 24.0 1.8
060380005 POt COlORADO SPRII4(s I 07 1978 4432 21.5 2.1 *
060590002 FR I ! ‘P’NVF.R 1 07 1977 7879 35,? 3.1
1 07 1978 8045 47.9 4.1
060580009 P01 DF .NVFH 1 07 1977 $071 20.7 2.7
1 07 1978 7440 24.2 2.2
060580010 voi PENVER 1 07 1977 7921 40.6 5.3
1 07 197$ 8067 45 5 5•7
060580011 P01 PP’VEW 1 07 1977 8091 25.6 1.6
1 07 1978 3133 71.0 1.9 *
060700006 P05 IF CO 1 07 1978 466 29,9 4.0 *
060990010 P01 GRAM!’ JuNCTION 1 (17 1977 2174 18.5 (.7 *
1 07 1918 7726 16.0 1.5
(161000005 ‘oi c,ovit.i:’t 1 “7 1977 8976 25.5 1.2
1 07 1978 8001 17.5 1.3
062210001 FRI bEI.ny I 07 1977 7450 24.1 1.6
1 07 1978 7757 20.3 1.5
4240114 SI !!.FIIR fl (OXT ! )E (160080002 !‘o, ARAP600E CR I 07 1978 4999 ,A37 .003 *
()6012(ifl0? Fill ARVAOA 1 07 1977 14003 • 708 .003
1 ()7 1978 737 .077 .003
fl’.R5R0907 FRI r.A ,t FH 1 07 1977 7977 .206 .011
1 07 1Q78 7960 .319 .011
0605999 1)Q ‘oi r p:l VFF j 07 1977 9047 • 137 .004
(17 1919 7998 .148 .005
(‘f(’SR(o 11 101 l I ‘V1 Il 07 1977 7979 • 110
N*Ø PFFHTPS A rAIlIF OPPI Vffl I’ATA II1C !’ I’i I PT F.T Ai Iirt Ii. r CP1I’FRt A OF flAOP.s (11 7R tHE 1,2—040 • VOL 3. C 2.3 • 0

-------
10—1 j _ q
IJkTT(1MA1 , AFRIH4FIPJC I)61P 0610’
sTAT : I0VFNT0l Y Oy PtU,I,I’TAUT
CI A I lfl
061820007 rot PUERLO
062210001 flj W LJ1Y
060500001 P01 OFNVFR
fl60 1i40A02 Pot 1’F.NV R
060590002 w
060300004 P01 COLORADO SPRINGS
060500002 405 DEPIVrR
060580002 POt OENVFR
062210001 FOl WEIRY
060590001 POt OEUVPR
064500002 Pot r .rPlvEW
060000007 P01 ARAPAIIOE CO
060120002 P01 ARVADA
060580007 P01 DFHVER
060580009 Pot DENVER
060590010 lOt flF:NVER
060500011 POt I)FNVPH
067210001 rot WF:t Y
060000007 POl ARAPARDE
060120002 P01 ARVADA
060200006 C05 RnUInER
AhO 300004 P01 COIdIRAIIO .cPRIiJc.s
060500002 POt flEP’VER
060S 10()O V Ol lI’ VF
0605000111 l nI PF:tv111
PAGE 06—0005
P0I_ 14T 11 POLl uTANT SITE AG/ LOCATI OO INT UNIT YEAR RUM MAX APITH
Cu r ’P PRJ sAME CODE CI Dr rots tots

4240114 .SIul,FIIR UTf,VTr’F 060500410 n1 OFNVF1 1 1 (17 1970 0059 •196 .006
060500011 ro) DElIVER 1 07 1977 7664 .129 .006
1 (17 1910 31*13 .177 .008
1 07 1977 159 • 045 .002 •
1 07 1978 5542 •055 .004 *
j 07 1977 7709 .159 .005
j (17 1918 7931 .211 .006
4240 191 SUlFuR PTOXI (’E 7 01 1977 51 48 14.
7 01 1911 Si 52. 16.
4260211 NITROGEN DIOXIDE 1 07 1977 5214 .36 .06 *
1 (17 1078 227 .24 .05 *
4260214 NJTROGF 1J UT0 IPE 1 07 1977 5017 .160 .017 *
1 07 1978 6978 .190 .024
1 07 1977 79)6 .330 ,054
1 07 1978 2769 ,?00 .047 *
1 0 1 1977 2380 .146 .051 *
1 07 1978 7827 .290 .049
1 07 1977 7679 .170 .021
1 07 1918 8034 .210 .023
4260784 PIITPOGFD CIOXIOE 7 01 1977 49 77. 38
7 01 1977 50 12. 48.
4310111 TOTAl, (IY000C*000N 1 07 1978 4087 4.6 1.7 *
1 07 1977 8063 0.7 2.5
1 07 1970 7979 8.3 2.3
j (17 1977 7575 15.0 2.7
1 07 1970 8053 1.9 2.6
1 07 1977 7962 10,8 2.3
1 07 1910 7097 10.4 2.5
1 07 1977 80)2 11. 2.9
1 (17 1978 8005 12,7 2.9
1 07 1 977 6508 15.4 2.7
1 07 1978 2675 11.7 2.8 *
1 07 1977 1953 15.4 2.5
1 07 1978 70fl 15,4 2.9
4420111 flZOflE CO 1 07 1978 40133 .110 .0)3 *
1 07 1977 7950 .129 .027
t 07 1970 7766 .130 .022
1 07 1Q77 1060 .05? .011 *
1 07 1970 7(11 .098 .029 *
1 01 1977 1059 .005 .023
1 07 1978 0227 •1 00 .022
1 07 1977 7PQO .146 .071
1 07 1979 7973 .120 .018
1 (17 1977 7753 .166 .074
1 (17 1078 7017 .140 .022
1 07 1977 7920 .098 .015
07 1Q10 00011 .013
I POt IMVF 1 (‘7 1Q17 8001 • I 5 • 027.
O’l ‘lFT SAP u7.u. SIIM’.I.D tlJ ’7 1c ’1 ( fl1Tl N16 1W fl6l s ( t0 LIN 1 ‘ C 2 .3.0
‘ .*•• OIN4 TFS 1. V,u V flIJ 1 t ’1?’ l,1 T1% ‘IOTCI’

-------
10—11—79 r’ATT’NM AFP ’ f:T 1 4C lI A RINK PAr,E 0 —0006
STAlK 1t Vc VtjPY I Y uiIj UiANT
(‘OIOWM)fl
P01.— sIR F(1LT .UTA’IT SPIF AG/ L( CATIUfl TNT UNIT YEAR IJUM MAX ARITH
CflDF NAsF. CntiE p ? UAI’E COOF Cflfl OPS flBS HFAN
4420111 flZflU 0 05800tt F0 1 0& ’VFR 1 07 1978 3210 .108 .019 $
0F 08?0004 FOt FflRT C0t.L.INS 1 07 1918 4090 .150 .038 $
061000005 Ff1 C,RFFtKY 1 07 1977 413 .030 .011 *
1 07 1978 8051 .125 .023
062210001 Ff1 W 1. Y 1 07 1977 7850 .153 .028
1 07 1918 7A27 .223 .025
I - .
(0
01
*“ P sri.c i i Vfl.II r . i 1vfp F 1 I’ TA w)iTC if. i’l Fi- r SAIflhIU 5 417.f ltr1c. CH t ni flAnPS G,IInKIPIK 1.2—040. VIlt, i C 2.3.0

-------
10—11—79 tJATlrrlA(, AI POI. E.TkTC DAN flANK PA .€ 27—0007
5 ’rAT TNVF 1 ’I)RY h P(iT I OTANT
MO TA ‘ A
Pfli, —MTH Pfl L IMTANT SiTE AC/ LI)CATI0! TNT UNIT YEAR NUN flAX ARITH
CODE NAME COOF PIi 1 NA I F CODE CODE OPS OHS MEAN
1110191 PARTICULATE 270020007 POt ANACOUOIi 7 01 1978 94 101. 41. *
770020009 FOt AUACI1UDA 7 01 1978 21 77, 39 *
270060009 P03 Pie , HORN CO 7 01 1977 55 159. 49.
7 01 1970 15 209. 67. *
270060010 P03 BIC HORN CO 7 01 1977 50 100. 25.
7 01 1978 39 72. 22.
270000006 C,fl7 PILI TFlGS 7 01 1977 59 166. 55.
7 01 1978 35 135. 54. *
270080007 Go1 BIlLINGS 7 01 1977 60 163. 30.
7 01 1978 49 155. 43.
270080000 (01 RII,LTNCS 7 (11 1977 57 165. 63.
7 01 1978 53 175. 74.
270080009 GOt BILLINGS 7 Oj 1977 55 155. 53.
7 01 1970 40 171. 55. *
270080059 P01 ALLLINGS 7 (II 1979 09 193. 72, *
270080059 P07 PILLIUGS 7 01 1978 2 44. 32. *
‘.O 270080060 P01 BILLINGS 7 01 1978 17 145. 71. *
270120001 P01 ROZEMAN 7 01 1979 48 60. 32.
770160003 P01 BUTTE 7 01 1977 1. 210, 74. *
2701 00Q5 Ft)1 AUTTE 7 01 1977 41 233. 93. *
7 01 1978 52 195. 80.
270160011 P07 BUTTE 7 01 1977 39 130, 42. *
7 01 1978 14 60. 28. *
270160014 POt BUTTE 7 01 1977 42 49, 22. *
7 01 1978 45 53. 21.
270160016 F07 OUTTE 7 01 1977 34 297. 99. *
7 01 1978 24 191. 66. *
210160017 VOl BUTTE 7 01 1970 102 158. 71. *
270160010 Fi’l FUTIE 7 ()1 1978 26 106. 54. *
27016001° E0l BUTTE 7 01 1978 3. 169. 63. *
770160020 Ff1 P’JTTE 7 01 1978 13 111. 53, *
270200002 P 03 Cp RTpR Co 7 01 1977 21 535. 77, *
270270007 P01 Co!U’ BIA I ALLS 7 03 1977 77 223. Q2 . *
270270005 Ff3 C11 ,IIMMIA FALLS 7 01 1977 35 467. 126. *
7 01 1979 55 426. 130.
770300004 F03 CUSTFR CO 7 01 1977 30 45. 20.
7 01 1979 5 16. 11 . *
270340001 Ff3 PAN1F1 S CO 7 01 1977 37 107. 33, S
7 (Ij 1979 57 90 15.
770340007 P 113 UAUIFL,S C I 7 01 1971 34 100. 79. *
7 01 1970 47 1°Ø 20.
770340003 P13 DAP’1 ’IS CO 7 01 1977 36 109. 37 *
7 01 1978 52 100. 20.
?703 0fl01 F i3 fAW .(1N CO 7 01 1977 21 51. 23. *
7 01 1979 9 46. 21.
77030011(7 11 WS(IN CO 7 01 1977 13 156. 38. *
?3 r03 % IAW tr . Cf 7 0% 1977 9 109. 37.
7 0% %979 0 40• 72. 5
* IITF A V %% f P ‘FI’ Ff1’ ? V W ?C (I no ?OT’ AlT j fflA ( 1ZA T tOil CP1TFNI A OF ((AQPS GIll DF.tTHF. 1 . 1040 • VOl. 1 2.3.0

-------
—74 •A’rTIAt ‘ ElPTC 1’ TA I AI1I( PA(F 77—0008
. Arl-. I tvl-: TI HY 0y Pl)hlllA’ 1
‘ P 4 t A 4 A
a
P01.—Mill Pfll. l.lITA T SITE A(:, 71 110 TNT UflTT YEAR NUN MAX ARZTH
Cfl Iw MA M (‘Pfl : P 1 1 ,7 FJAMP CQP COPF OHS r’RS MFAN
1110191 PART1C1II,AT 279360004 Fol OAWSOU Cr’ 7 01 1078 8 20. 9.
270400004 o2 OFF’H IrH’CE cr 7 01 1977 59 161 • 50.
7 01 1979 54 155. 33.
7704140029 Ff77 1AT IICAD CO 7 01 1977 45 126. 78. *
7 01 1919 55 59. 24.
270490034 P05 F1 .AT UEAO c; 7 03 7978 9 40. 14. *
270570003 o7 c,*l .1 .ATTW CO 7 03 1977 23 309. 110. $
7 01 1978 32 255. 79. *
210570001 P03 GLACfl.K NAT PAPK 7 01 1917 37 29. 6, *
7 (43 19Th 22 30. 9. *
270640005 P02 014141 -1 1T1 C I) 7 01 197 51 217. 4.
7 03 1979 54 267. 55.
270660007 ( 02 GR 14T FALLS 7 01 1977 93 225. 44,
7 01 1979 25 136. 46 , *
270660009 GOt GREAT FALLS 7 01 1917 93 969. 69.
01 1 7A 44 125. 61.
to 2706600t5 ot GREAT FALLS 7 03 1917 34 411. 118. *
• 1 7 01 15743 8 148. 58. *
270660016 Fat GPFAT FALlS 7 (‘1 1978 1° 62. 26. *
270770001 FOl HELEHA 7 01 1978 56 234. 55,
770770001 P01 HFI,FUA 7 03 1977 41 208. 52.
270720002 FOl HET.ENA 7 01 1978 25 98. 49, *
270760903 Ff77 JF.FFFKSOA CO 7 01 1971 59 103. 27.
7 01 1979 58 101. 78,
770900013 P01 f(At,ISPELI.. 7 01 ‘ 77 53 226. 75.
7 01 1979 37 411. 109k *
270800014 POt KAJISPELL 7 01 1q79 11 120. 65. *
270820011 Ff75 LAYE Co 7 01 jQI9 9 170, 48. *
770940001 Gfl2 LAIIPE), 7 01 971 54 150. 41.
7 01 7Q 79 49 III. 44. *
270960002 Ff72 LEWIS ANt’ CL.At !( CO 7 01 1971 49 192, 76,
7 01 1979 44 201, 97, *
779900009 Ff71 7.JflflY 7 01 1917 12 119. 59. 4
270900010 Ff71 t.IPRY 7 01 1Q77 7.0 196, 113. *
7 01 1979 52 1384, 196.
270940001 Ff73 lINCOLN CO 7 ft 1977 37 lit, 58.
7 01 1979 34 247, 74. *
210940002 Ff73 lINCOLN CO 7 01 1977 74) 33. 14.
7 03 1979 27 45. 17. *
270980001 P03 MC Cr4HE C l) 7 Cl 1Q17 26 98, 28. *
7 (11 1979 46 59. 15.
771100001 001 M1 ’3r1ULA CO 7 Ci 1977 347 295, 95.
7 01 l 47 294 390, 97
?71100 1’09 0(41 l50l1lIl,A C!) 7 (71 1977 347 790• 53.
7 01 1979 370 370, 79
77110 1)1fl GOt M1SSOIlL,A CI 7 01 7977 17 190, 90. *
7 ft 1078 55 166, 71.
771100074 GE)7 15 flhII,A O 7 01 7917 275 253 , *
‘SN p .r4oii.s A VAlUE PEP1”Ff f140 1 I ATA llTcI’ r’ i fl7 ! l-’F7 S l- SI I;1A9 17 .A ’r IfIIl c InRIA ti n )ps r.,I1ns 7,il1l: 1.2—040. VOL . C 2.3.0

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10—11—79
1AT1flrJA( AFP 1 :1RlC !1ATA A ’I
STAIP T’IVFr’T”RY ‘Y voILtrr 0T
rn1TAN6
PA(E 21—0009
PO1.—MtH P0I,MJTAPJT siwi; FiC,/ LOCA7’I OPJ IHT uNir Y A0 MuM MAX APITH
flflP NAMP COOP PR) NAME COflF CODE OI lS ( IRS IWAN
111019) PARTTCULATF 211100015 ( i)2 MISSOULA Ct) 7 01 1977 273 79. 30. *
7 01 1978 295 144. 35.
911100016 4 ’.02 I4XSSOIJLA CO 7 01 1977 232 113. 32. *
7 01 1Q78 299 701, 40. S
271100017 02 MISSr1ULA CO 1 01 1977 131 84, 22. S
1 01 1978 295 125, 29. 4
2711000(0 C ,0i MISSOULA Co 7 01 1917 ion 79 87 , *
7 01 1976 86 457. 145. *
271100010 ( ‘.0? MTSSOULA CO 7 01 1977 17 132. *
271100019 P01 MISSI1ULA CE) 7 01 1977 29 335. 104. *
7 01 19713 2813 676. 306. *
271100020 GOt MISSOLILA CO 7 01 1978 90 244. 104. *
271240000 P03 POWDER RIVER CO 7 01 3977 24 77. 19. *
7 01 1978 6 37, 16, *
271240009 P03 POWDER RIVER CO 7 01 j977 57 275. 23.
7 01 1978 26 56. 21. *
271360003 803 R1 )SEPUD Co 7 01 1977 19 243. 26 , *
7 01 1978 17 34. I ? . *
271360026 903 ROSF900 CI) 7 01 1977 50 280. 32.
7 01 3970 46 84. 26,
271360027 P02 ROSERUD CO 7 01 1977 27 95. 32, 5
7 01 1918 13 138, 34.
271360028 P02 ROSE000 CO 7 01 1977 12 102. 24, 5
271360070 P03 POSPRIJ1) CO 7 01 1978 1 8, 8. *
211400002 801 SAP’OFHS CI) 7 (11 1978 23 367. 73, 1
271480015 802 SILVER 80W C D 7 01 1917 42 89. 36. 1
7 Ot 1978 50 81. 29.
4210111 CAR800 Wt)N0XLDF 270080053 P01 RILLTNGS 1 01 1977 4620 19.2 2.3 a
1 07 1978 1563 15.9 1.7 *
270160015 P01 RIITTE 1 01 1917 3772 14.0 .9 . .*
07 1978 1971 1.5 1.3 *
270160015 P02 PUTTE 1 01 1918 1219 14.9 1.6 a
270660015 P01 (‘.RFAT FALtS 1 07 1917 3601 23.1 2.4 5
1 07 1978 1309 24.5 3.1 *
270660015 802 CRPAT FALLS 1 07 1978 1092 15.1 3.2 *
211080003 P01 MISSNULA 1 07 1977 6108 31.6 5.1
1 07 1978 2436 28.0 6.9 S
271100014 POt PlISSOULA CO 1 07 1970 1307 24.0 3.3 a
4210121 CA0110R MOPIOXTDP 7101600111 801 RUITF 1 07 1978 1516 15.5 1.2 *
4240114 SIPLFIIR nTox InF: 210070001 01 A? ACflI40A 1 07 1978 7723 1.210 .017 *
270020904 Fiil 4oiA(fl fl’A 1 07 1977 687Fs 1.050 .012
1 07 1970 194A .950 .019 5
7700110053 801 MILLTrJ :S 1 07 1977 5649 ,200 .003 S
1 fl7 1978 7171 .170 .003 *
7701600111 FOl rIUT3P 1 07 19111 R92 •0 90 •on1 *
710400004 P 0 ) Il-0 [ ‘tG : CO 1 07 1971 7043 1.040 .036
1 01 1478 1591 7 ,750 .050
7704000 )7 P07 fl tt.l(I CU 1 ((7 1971 23 % 680 .028
‘ 5 ’ 01 ) S A V 1IIP ‘ )V fl ppm PiATA WP41C 14 fl’ 101 I FI T SI (PI (1s0 SI’ i1kRtZ6T1fltI C11)TF ( 1 (iF flP .O S OIIIOFIIUL 1.2040, VOl. 3 2.3.0

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10—11—19 ‘iArTIr AL. 1 I R1flWT .41C DATA RANK PAGE 270010
STATF I”V F I’tIWY Y PITh [ IJT4NT
S
P OLI.%’l AMT SITE A(/ LOCATiON TNT UNIT YEAR NIIM MAX ARITH
C’ 0E MA ”F CODE PR.J NAME CODE CODE ORS ORS MEAN
4244114 SULFuR UTOXIDE 270400012 F02 PEER LOl)GE CO 1 07 1979 6741 1.600 .036
270400”Ol Jn1 LWER lODGE CO 1 07 1977 9444 .960 .016
1 07 1978 5935 1.250 .020 *
210400402 JO? DEER LODGE CO 1 07 1977 9421 .0*0 .014
1 07 1978 6010 .710 .017 *
274400403 .102 DEFR LODGE CO 1 07 1977 9346 .600 0l3
1 07 1978 5429 1.600 .016 *
270440404 .102 IWER LODGE CO 1 07 1977 4461 1,270 .020
1 07 1978 5542 1.240 .024 *
270400406 .102 DEER LODGE CD 1 07 *977 7721 16.100 •0?6
1 07 1978 5925 1,500 .033 *
270400807 .102 DEER LODGE CO 1 07 1977 7741 1.030 .016
1 07 1978 5783 1.250 .023 *
270400906 E02 PEER LODGE CO 1 02 1977 7840 3.510 .023
1 07 1978 1961 2.430 .078 *
270720001 F02 HElENA 1 07 1977 3330 .400 .006 *
270720011 Fl)2 ELE 1 07 1977 6644 ,66 0 .014
‘0 1 07 1918 4284 •4 40 ,007 *
270760902 E02 JEFFERSON CO 1 07 1917 3601 .780 .013 *
270760003 E02 F FFRSO1 CO 1 07 1977 P290 1.400 .012
1 07 1978 3794 .420 .004 *
270760904 F02 JEFFERSON CC 1 07 1977 500 .880 .037 *
1 07 1918 5064 ,900 •009 *
270840000 FOl l,At’RFL, 1 07 1978 373 .530 .046 *
210840009 FoS LAUREL I 07 1977 4474 .630 ,050 *
27fl040049 C07 LAUREl. 1 01 1917 1269 .620 •056 *
1 07 1978 1.14 .660 .057 *
271100019 F’OI MISSOtILA Co 1 07 1977 1005 .010 .001
1 07 1978 5104 .050 .002 *
27*360077 E0 , nsr p’;o (:fl 1 0? 1977 335t .100 .003 *
4240120 SULFuR DIOXIDE 2700?ft007 FOl AIIACOPIPA 1 01 1979 2190 1 ,000 .078 *
270090059 Ff1 AILLIIIGS 1 07 1978 1827 .195 .012 *
4240191 SULFUR DIUXIDE 270040006 FoS RILLINGS 7 01 1977 38 354. 71.
270340001 F03 flAt’IFL .S C i i 7 07 1977 37 •001 .001 S
270510001 903 GLACIER MAT PARK 7 01 1977 45 6.
270840009 GO? lAUREl, 7 (tI 1917 19 391. 114. a
270940fl0 1 F03 MC CONE c v 7 07 1977 24 .001 .001 •
2113 fiflfl F03 P11 1 10 Cii 7 oi 1977 15 001 .001 5
271360079 W02 Rfl.Sl .RUD Cii 7 (17 1977 5 .001 .001 *
4240197 SULFUIR DIOXIDE 270340001 F03 OAPIELS CO 7 07 1978 6 .001 .001 *
4260211 NITRoGEN DIOXIDE 27002n007 J I ll ii t’A 1 07 1979 178 .02 .01 *
?700 9 J053 roT PIIL.TUGS 1 07 1977 2352 .18 .03 5
I fl•7 1979 65R •1R .04 5
770090050 FCI fl ,t,1Il(S 1 07 1919 425 .05 .01 5
21flt 0fljS FIll ourr” 1 07 1977 682 .06 .01 *
21flI6 .01 ri l RIITTF 1 (17 *978 372 •04 .01 5
271100010 rS: RIIl.A ciu 07 1977 695 .10 .03 *
1 07 1978 3029 •to a
* A 1 ’1 J.l3J OVP J VJ0 JJ n ’1 p414 HUTCh flu i:r I -I I T S Ifl A’ SO i d ’ IZATIOJI CR1 TfRIA (l I1AOPS G’ITLIFT,INE 1.2—040. HIll, r,C 2 • 3 • 0

-------
10 11_ic)
TT’i’AI P(0FTPTC I) .Il flAUI
JI VFITfl V .,y
‘fl ‘ IA . A
PACE 27—0011
N)
PfU, —rTH
).‘PI! fJTA’•T
Slif.
AG/
LCATIC. ’:
TNT
01117
YFAR
01111
MAX
ARITN
C OIW
8FlF’
Cirnf’
PRi
rAi F
COnE COI1F
ORS
08$
MF’.A$
42h0’i11
NTTprI(;Fo I’TuXIPl
271360021
FO?
P1 )51 .000 CO
1
07
1977
1953
.13
.03
*
42611214
tJ1T1.f0GFI OTIIXTOF
77fl)7c)O’,7
270n8005°
27fl160015
Fill
F0I
Fol
AiJACf)aDA
Plf.i.INC,S
BUTTE
I
1
1
(17
07
07
1978
1978
1977
2003
1469
308
.280
•075
.078
.007
.011
.023
5
5
*
27fl1600IR
FM
OUTTE
I
07
1978
1293
.155
.024
S
4260284
#1TRfl FI1 DII1XIDE
21034on i1
270570001
F03
P03
PANIFt S CO
CLACIER PI T FARIc
7
7
7
A?
07
fl
1977
1978
1977
39
14
46
.005
.001
42.
.001
.001
3.
5
5
4310111
TOTAL HYORACARPON
270980001
771360003
271360028
270080053
270080059
210160018
271100019
F03
F03
FO?
FM
F01
101
Ffl 1
FC CONE Cc)
ROSEBUD CI )
ROSFRUD CO
BILLINGS
.
PILLTOGS
RIJTTE
MISSOULA CU
7
7
7
7
7
7
1
1
1
1
1
01
07
07
07
07
07
07
07
01
07
07
1978
1977
1978
1917
1978
1977
1977
1978
1918
1978
1977
22
27
17
15
3
5
4747
1573
865
2653
573
12.
.001
.001
.001
.001
•005
26.4
11.4
8.3
7.1
7.6
3.
.001
.001
.001
.001
.003
3.1
3.8
2.4
2.0
2.1
5
a
•
S
S
‘
5
S
a
5
a
4420111
OZONE
271360027
270080053
270090059
270160015
270160018
210310101
2711000i9
211380027
271720003
P’07
101
101
101
101
A0R
101
P0?
102
ROSEBUD CO
0I1LTNGS
OILL.TNGS
AIITTE
MUTTE
CUSTER NATIONAl. PUREST
IIISSOULA Cc)

P()SEBL’D CU
YELLflwSTn; CO
1
1
1
1
1
1
1
1
I
1
1
1
1
07
07
07
07
07
07
07
07
07
07
07
07
01
1978
1977
1977
1978
1978
1971
1978
1917
1978
1977
1978
1977
1978
5367
1122
7428
3419
1394
2571
3677
7603
1675
37
3705
2922
129
5.3
2.7
.078
.120
.095
.155
•071
.080
.075
.023
.063
•14 0
.200
•
2.1
.5
.018
.020
071
.045
.072
.040
•029
.011
.013
,.o 58
5
•
5
*

5
S

a
*
%cF14*1T S VP1”1.’ Ff ’”Y 1. .?c 1 )T ’n I4c r c ‘ c i 11 c k17r 1Tflfl CO FRiri (iF 1 )fic)05 (ZI1IOF.l,INE 1.2—040. VO l.
2.3.0

-------
lu—Il .IQ ! r1fII AT t..WT TC 0 I A 0AII PAGE 35—0012
s1’Ar : JtiVF!flIMY ‘ Y I’nl.!IITA. JT
tI(14TH PAK(bTA
PflL—’ II! Pflb1.tPTA IT SlIM AC/ 1,flCAT Ifl. I IPJT IIP3T1 YEAR NIPU MAX ARITH
c.m rflfl 1’i ,1 !JAM I CIfl) COOP 085 095 MEAN
ijio 1 IPi 1c ii. i 350040002 P03 1’Afli F.S CO 7 01 1977 30 94, 37.
1 01 1978 19 190. 42. *
350000.101 P03 RJP,LJNC ,S Co 7 01 1Q77 49 hR. 23.
7 01 1978 51. 95. 19.
350100001 VOl PISMARCK 7 01 1977 59 632. P6.
7 01 (979 60 199. 59.
350100002 FOl RISMARCK 7 01 1917 61 630. 140.
7 C l 1978 40 537. 134. *
350160001 VOl POWMAN CO 7 01 1977 59 232. 31.
7 01 1978 4° 112. 24.
350200001 VOl OIJRI. IGII CO 7 C l 1977 46 493. 71. *
7 01 1979 59 180. 36.
350220001 P03 CASS CD 1 01 1971 52 101. 42.
7 ( 1 1979 49 231. 42.
350260001 P01 PF.VIt.S LAKE 7 01 1971 19 131, 56. *
7 01 1978 13 112. 62,
350300001 P01 DICKINSON 7 (11 1971 28 100. 48.
7 01 1979 28 82. 41.
350340001 P03 DUNN CO 7 01 1977 44 79. 29.
7 01 1978 54 108. 24.
350340002 P03 DUNN CD 1 ft 1977 56 189. 78 ,
7 01 1978 33 47. 16. *
350400001 P01 FARGO 7 01 1Q77 58 145. 54.
7 01 1978 53 181. 55.
350400002 POt FARGO 7 ft 1977 57 243. 73.
7 01 1978 39 750. 75. *
350490001 POt GRAND FORKS 7 01 1971 29 128. 60.
7 01 1978 27 91. 41.
350490002 VOl GRAND FORKS 7 flI 1977 59 162. 56.
7 ft 1978 40 143. 41,
350520001 P03 CRAUT Co 7 01 1971 56 229. 26.
7 0 1979 52 10• 22.
350560001 P03 HETTINGER C I ) 7 01 1977 60 274. 41.
7 01 (979 36 330, 44. *
350560002 P03 UETTTNGER Co 7 01 1977 59 317. 76.
7 01 1979 33 37. 15 , *
350590001 P01 JAMF:sTtIwM 7 (11 1977 26 417. 92.
7 01 j97R IQ 104. 45.
350700001 P03 MC MErPZIE CO 7 01 1977 52 126. 26.
7 01 1978 34 81. 18.
350700002 VOl PlC KFtIZIE CO 7 01 1978 1 9, 8 , *
150770001 VOl MC bEAU C li 7 C l 1977 43 245. 39, *
7 0( 1979 54 69. 20.
3501200(12 P03 flC LEAP’ (‘I’ 7 01 1977 55 154. 33.
7 (11 1979 3A. 128. 34. *
15074uA0 1 Fit MI Oflfli 7 01 1977 61 773, 53.
7 01 1979 53 174. 50.
3507600)1 Ff1 MPI rPR cu 7 (‘1 1977 59 2Q 11,
‘*“ DFUOTFS A VAI,UV PMRIVEO P900 DATA WUIC” J)1 ( lr T l I-PT SAUrPL SIli i1 I Zt’ T )li CO 11191 rip DADOS GflIDELIUE 1,2—040 • VOL 3, 2.3.0

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10—11—19 ‘I rTcU1Al, i flME1 if IC F TA RANK PA E 35—0013
,TAT’I VFIfTtfHY Y p1tLIIT NT
moTh 0T11
Pflt,—UT I POl,LIJTANT SITE Ar., L OC ATI IW T 1T liMIT Y AR HUM MAX ARITH
CODE NAME rOOF. PP.) DAME: COPE CODE ORS OHS MEAN
3507601)01 FOl MERCER CO 7 01 1978 19 284. 6R *
350760002 Ff13 MERCER CO 7 01 1917 58 224. 31,
7 01 1978 52 288. 52.
35fl78o001 V o l 7 01 1977 17 166. 75. *
7 01 1978 26 106. 48,
3506000o1 P03 MORTON CO 7 Oj 1977 59 209. 34.
7 01 1979 38 113, 29, *
350823001 F03 MhJ’UITKAIL CD 7 01 1977 53 109. 26.
7 01 1978 33 77, 24. *
350860001 P03 OLIVER CO 7 01 1977 60 237. 32.
1 01 1979 58 104. 24,
351063001 F03 SHERIDAN CO 7 01 1977 50 106. 33 ,
1 01 1978 37 84, 21, *
351060002 P03 SHERIDAN CO 7 01 1977 51 132. 32.
7 01 1978 33 72. 20. *
351141 .001 P03 STARK CO 7 01 1977 55 421, 41.
7 01 j978 54 162, 29.
351180001 P03 STLITSMAN C D 7 01 1977 25 76. 37,
7 01 1978 16 63, 28. *
351240001 P01 VALLEY CITY 7 01 1977 23 202, 61, *
7 01 1978 15 251. 68. *
351260n 1 POt WANPETON 7 01 1977 29 91. 37.
7 01 1978 30 121. 39.
351300001 P03 WAPO CD 1 01 1977 44 133. 26.
7 01 1978 48 111. 23. *
351360001 P01 WILIdSTON 7 o 1977 29 520. 56.
7 01 1978 29 Ri. 35.
1110192 PARTICULATE 3S020000 1 P03 BIIRLEIGH CO 7 01 1977 57 211. 37.
7 01 1918 39 79. 20. *
350720001 P03 MC LEAN CO 7 01 1971 5. 124. 20,
350860001 Vol flt.TVER CO 7 01 1978 13 26. 15. *
4240114 SIILFIIR DIOXIDE 150200001 P01 MUPL .FIGH CO 1 07 1977 6394 .100 .002 *
1 07 1970 1374 .080 .003 *
350860001 P03 OLIVER CO 1 07 1977 5366 ,050 .002 5
1 07 1918 5542 .110 .001 *
4240191 SIJE.FIJR PIOXIDE 35010r 1001 P 01 RISMARCK 1 01 1977 61 11, 3.
7 01 1978 31) 3 3• *
35010ot)2 Ff11 RISMARCK 7 01 1977 54 9, 3.
7 01 1978 30 16. 3• *
350200001 P03 FIIJRJ,VIr,H CO 7 fl 1977 53 14. 3.
7 01 1978 25 14, 3. *
35034u00? V 0 l MItJU CD 7 01 1977 58 9. 3.
7 01 1978 27 3. 3. *
3Sf,4(’on u 101 FARGO 7 ( 1 1977 54 22. 3.
7 197 1 30 21. 4. S
35c (’ Ffl Cp#.r CO 7 01 1977 i o.
7 01 1918 10 22. 3• *
1c05 0f,1 1l I TI CEP ( I 7 01 1977 60 10.
F VMU IWH’L ?Fl-’ F ) I ’ p T ot c- vF:r SM IA 5t .wjZ tlfl CRI1E016 fl h1 flP (hIfr ).1NE I .2—040 • 901. C 2.3.0

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1O’l 1 ? 1 Tr1t’ , AF Nt FA AMK PA(E 35—0014
S FATE I VF I TuJRy I T PtiI,L IIT4WT
I’lHl’h I’AP f1TA
U PflI,I IITA’ T SJIF AG/ f flCATIO 3 TNT Li NT? YEAR NlJ? MAX ARITN
cr’Iw rir . p ,j i A p CflflE CODW ORS flRS MEAN
4240191 SI!L F IR ninxini 356 oo1 03 HETTTUCEP Co 7 01 1978 30 R 3 *
3507fl’ i1 P 03 “C KEuzif: Ct, 7 (U 1977 51 3. 3.
7 01 1978 29 6. 3• *
3572 ’r;? ur IFAN CO 7 01 1977 60 . 3.
7 01 19713 29 5 3• *
350740001 FO! MAI4DAN 7 01 1977 61 15. 3.
7 01 1978 29 30. 3. *
35 760’ 01 P01 fIERCER CO 7 (U 59 9. 3.
7 (31 19713 18 12. 4• *
35076000? P03 MPRCfR CO 7 01 1977 61 12. 3.
7 01 1978 30 39. 4• *
3S8C0’ 01 P03 MORTON CO 7 01 1971 7 3. 3. *
7 01 1978 22 3. 3. *
350860001 P03 OLIVER CO 7 01 1977 61 7. 3.
7 01 1978 30 3. 3• I
351140001 P03 STARK CO 7 01 1977 59 12. 3.
7 01 1978 31 3 3• *
C..’ 4260214 TT 0 FN PTOXIOE 350200001 P03 RURLFJC.I3 CO 1 07 3977 4753 030 ,004 *
1 07 1978 4448 .020 .003 *
350860001 P03 OLIVFR CD 1 07 1977 7879 .090 .003
1 07 1978 1840 .050 .003
426021’ IT nGPn DIOXIDE 350080P01 P03 BILLINGS CO 7 01 1978 14 34. 15. *
35 110rr1 pot RISMANCE 7 01 1977 61 61. 25.
7 01 1978 60 63. 26.
50100C 02 P01 RISI4ARCI( 7 01 1917 54 53, 15.
7 01 1978 41 40. 11. *
3S020 ” 001 P03 RI)PLFTGI1 CO 7 01 1977 - 53 53. 9.
7 (31 1978 56 61. 14.
35fl340 02 P03 OIJNPJ Co i 01 1977 59 28. 5.
7 01 1978 39 26. 11. *
3S04 Y a1 POt FARGO 7 01 1977 54 55, 30.
7 01 1978 58 68. 39.
350520001 P)3 CRAUT CO 7 01 1977 61 12. 3.
7 01 1978 59 26. 5.
350560001 P03 HEI’TINGER CO 7 ( 1 1977 60 15. 5.
1 01 1978 41 43. 10. *
35(37r ,or.0j P03 VC KPNZIF CO 7 01 1977 51 152. 20.
7 01 1978 313 29. 7.
3507f O0( ,7 f ’03 NC KF ZIf CO 7 01 1978 4 34. 75• *
3507200(31 P03 PC LFAN CU 7 01 19713 14 31. 12. *
35i77 )fl )7 P03 IC LFAO Cr3 7 01 1977 60 20. 3.
7 01 91fl 40 22. 9. *
35 740(3,)l P Itt “APIPAL’J 7 01 1971 62 71. 21.
7 01 1978 Al 45. 18.
35’71(0 ( 31 f’Øl FPcFR CO 7 (‘1 1977 59 47. 16.
7 (11 1978 46 116. 17.
3ç(t7 ,r\37 P03 ,rFR C? 7 (U 1971 61 26. 5.
7 01 1Q78 59 68,
OF’ ‘ 1 S A VAL,I IP oI:PTvfp p ’ ‘* fl ItTçt ’ U . ‘ (‘ I • ‘r SAP’ ’ I’ SI! r I7.AIJ CRTT :Ri r ,i o o°s CL,IDEt.INf: I •2—040. VOL - :C 2.3.0

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10—1 — UAT1(J AT, AF ’o F:TPtC DATA RANK PAGE 35—0015
s’rar jfh(F !TI Ny il PflI,LIITANT
!.PUTI4 )AKOT
P01.—MTN P0bLJI AMT SITE A / LOCATIVI IUT UNIT YEAR NUN MAX ARITH
CflIW CI)DE P03 NAME CODE COOF 0R fiRS MEAN
42602R4 UITROGFU DiOXIDE 350800003 F03 OPTON C D 7 01 1917 7 8. 3, *
7 01 1978 37 51. 6. *
350860001 F()3 OLIVFR Co 7 1 1977 60 17. 7,
7 01 1978 61 23. 9.
351140001 F03 STAkK Co 7 01 1977 50 3.. 10.
7 01 1978 59 31. 11,
4420111 OZONE 350200001 F03 BtJRI.EIGH CO 3 07 1977 7231. .100 .035
1 07 1978 6089 .110 .032
350860001 F03 OLIVER CO 1 07 1977 8007 .070 .033
1 07 1978 8093 .070 .033
0
3V r’ FOnt ’ i’iAi t%cn l n i.nl ’ s ii S’r, P1?. T1ni CP1T R17 OF OAOPS (UTDELIPIE 1.2—04fl . tiny ‘C 2.3.0

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1 o—n—7q !46114,:141, Af II.’ :T1 ’C r A PANI PAC,8 43—0016
SI’ATF: It’V tTuRY f’Y Pl,I,IIIANI
S0II’lII fAYIVrA
Pot — t ITII I ’Ilt.. I.IITAMT S1TF A / ocArrnN I IT ti, ir YtAR II( MAX
C0 14’ tAMP root: PR 1 NAMF’ C0T1 CflITh DOS ( i l lS
1l101 1 PARTICIII,,vr°’ —— 430020001 P01 ANPROPEII 7 03 1977 — 8 221. 71. S
7 01 1Q79 I I 182. 102. S
430110001 P03 ALACK HILtS MAT POREST 7 01 4977 46 82, 14. 5
7 01 1978 51 68• 13.
430140001 P01 I3ROOKIMGS 7 ‘ 1 1977 50 141, 42.
7 01 1979 47 124. 46.
430240001 P03 RIJTTF CL) 7 01 1977 6 2, 10. *
7 (11 1979 16 64. 20. S
43064001)1 P02 GRANT CD 7 01 1979 22 103. 42. S
430640002 P02 GRANT CO 7 01 1979 20 107. 36.
430760001 P03 HARUTIIC CL ’ 7 01 1977 5 25. 18. S
7 C 1 1978 14 38. 27. S
430790001 P03 HOT SPRINGS 7 0* 1977 39 211, 51.
7 01 1978 24 132. 55, *
430870001 P01 I4080tl 7 01 1977 45 129. 49.
7 31 1978 43 226. 71. S
43124001)1 POt ?4ITCIWL.L 7 01 1971 27 151. 54. $
(7 1 7 01 1979 77 199. 58 ,
431300001 P03 PENNTNGTOII Co 7 01 1977 6 88. 54. S
431320001 P03 PERVINS Co 7 01 1977 53 295. 32,
1 01 1978 50 164. 22.
431370001 P4)5 PFPKTNS CO 7 (‘1 1977 34 278, 38. *
7 01 1978 47 111. 70,
431340001 P4)1 PIFRPL: •7 01 1977 59 126. 53.
7 01 1 ’b 45 257. 55. *
431380001 P01 RAPIt CITY 7 01 1977 48 293. 86,
7 01 15 B 40 293. 91. *
431380002 P01 R PIfl CITY 1 01 1977 48 788. 70.
7 01 1978 37 210. 72. *
431380005 P01 PAPII) CITY 7 01 1977 5* 301. 66,
7 01 1978 48 146. 63.
431390006 P01 PAPIO CITY 7 01 1977 50 93. 39.
7 L lj 1979 50 139. 48.
431480001 PAl SIOUX FAhJ S 7 01 1Q77 46 129. 61.
7 01 1978 43 119. 54. *
431480007 P01 SIOuX PALIS 7 01 1977 48 140. 51.
7 ‘ 3 1979 34 9? SO. *
431490003 Pot SIOIIX tAtI.S 7 0 1977 48 156. 66. *
431490004 P 4 )3 SIOuX IA [ 4S 1 01 1977 51 125. 49.
7 01 1978 48 j30, 47.
431S20001 P07 S1’FAPFISH 7 01 1977 24 91. 32. S
431760 1i0 1 Fill t4ATFPT( 1 , P. 7 ‘ 1 1977 42 175. 58.
1 1)1 1979 41 120. 52.
433900001 F03 Y (T( J 7 fli 1977 S7 191. 70 ,
1 01 197 3 53 137. 53.
4740191 StUPOR OTI’Y) l’F 4303 l0n ll P03 L’LAr I l liLS NAT P001ST 7 03 1977 47 3. 3.
430760001 1ii3 ,uA1 u r i; co 7 01 1977 19 8. 4. *
7 1)3 39744 3 5.
‘S N A VP,l :!c (1 PivFri V140t! O6TA 4 luTc44 I) ‘ i II.T ST i.ii) l SI}! R1ZAP14uiI C9ITf9IA (ii flAOP5 C,IITPPLINP I .2—Oafl. VOL C 2.3.0

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10—11 1q IATIn’!At AF:ROt F.TkjC DATA BAtIK PAC,E 43—0017
ST TF ItIVFrITflRY NY PITht. TANT
S”UTH DAKOTA
a
eot.—rn’ pr’U.tITANT SI1E AG/ 1 (ICATIflU INT LIMIT YEAR NIP” MAX ARITH
CtM F tPANF C’PE P0 .1 NAME CODE CODE OBS OBS MEAN
4240191 stni I)lflXIflE 431340001 Ff1 PIFPPF 7 01 1977 39 B 3 a
7 01 1978 15 3. 3. *
43138o001 VOl. RAPID CITY 7 0* 1977 37 11. 3 a
7 ( II 1978 15 5. 3. *
431380002 Vol RAPID CiTY 7 01 1977 16 40, 5. *
431490002 VOl SIOUX FAILS 7 01 1977 33 15. 4 a
7 0* 1978 7 3. 3• a
4314900o3 Ff1 SIOUX FAI.L.S 7 01 1977 2 44. 32.
4240197 SULFP!K DIOXIDE 43fl 4DSO1 Ff2 RIPNT CO 7 01 1918 38 25. 4 *
43 76O0fl1 Ff3 hARDING CD 1 01 1978 1, 7. 3. S
431340001 VOl PIERRE 7 01 i 7e 36 3• a
431390001 VOl RAPID CITY 7 01 1978 32 6. 3. *
431480002 VOl SIOUX FALLS 7 01 1979 33 5 3 a
4260284 !JITPOGFN DIOXIDE 430110001. 003 BLACK 1111.1.5 NAT FOREST 1 01 1977 49 12. 3.
7 01 1978 35 21. 3. *
430640001 F02 (IhANT CD 7 01 1978 32 16. 4 a
430760001 F03 HANDING C D 7 01 1977 11 65. 13. *
7 01 1978 22 1.. 5,, 5
431340001 FOl PTEMRE 7 01 1977 19 31. 17. 5
7 01 2978 45 33. 14. *
431390001 FOl RAPID CITY 7 01 1977 15 73• 39 a
7 O 1978 42 62. 20. *
431480002 VOl SIOuX FALLS 7 01 1977 19 47, 27. *
7 01 1978 30 3.. 18. $
0F t’1 S ‘i ;.iw Ot”%fl FI’ FOfl I’1 tP ‘•DUCI’ Otl 9r T I t1 Sr P LI . SItI’’ ANt 11frl CR ITt fl A OF I’U flPS (U1tWl1 V 1 .2—040 • Vt t, FC 2 • 3 • 0

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10—tt—7Q * AT1uNAI. 4f:ROMFTIUC DATA PA JI PACE 46—0018
STATI T VFt T(bPY OY PIlILIITAsT
LIT AR
Pflt,—MTIf pfl t hTA 11 SITF AG/ LOCATION TNT lIMIT YEAR NON MAX ARITH
m OE CODE PRJ NAME CODE CODE 08S OiLS MEAN
1110191 PARTICULATE 460060001 Eul ROLIPITIFUI 7 01 3977 334 396. 72.
7 01 3970 333 182, 60.
460140001 P09 CARRON Ct) 7 01 1977 257 144. 39.
7 01 1978 176 93. 37.
46016i)00t Ff1 CEDAR CITY 7 01 1977 252 151. 55.
7 01 1978 333 262. 56.
460280003 1(03 FMl RY Co 7 01 3977 85 83. 24. *
7 01 1978 19 59. 20. *
460290003 1(03 EMERY CO 7 01 1977 76 75, 76. *
7 01 1978 22 41, 20 , *
460280004 E02 ENEMY CO 7 01 1977 189 665, 59, *
7 01 97R 268 170. 47.
460300002 1(03 GARFIELD Co 7 01 1977 140 294. 70.
7 01 1979 26 36, 18. *
460300003 1(03 GARFIELD CO 7 01 3977 120 153. 47.
7 01 1979 17 24. 7.
460380001 F03 JtJAR CO 7 01 1978 190 126. 38. *
460400001 Fol 1(ARE Co 7 01 1977 326 423. 26.
460400002 F03 ICANE Co 7 01 1977 340 661. 32.
7 01 1978 156 186. 16,
460400003 1(03 KANE C D 7 01 1977 133 176. n.
7 01 1978 19 54. 12. *
460440003 Fol KEARNS 7 01 1977 108 475. 106. *
460490001 FOl I.iilI 7 Ot 1977 294 470. 95.
460520001 P02 KAGUA 7 01 1977 345 576, 99.
7 01 1978 340 535. 70,
460520902 P09 MACNA 7 01 1977 15 199. 93. *
460560001 FoS MILLARD CD 7 01 1977 136 242. 80• S
7 1 1978 139 276. 93. *
460680001 FOl OGDEN 7 01 1977 348 524. 94.
7 01 1978 288 281. 97. *
460680001 P01 OGDEN 7 01 3977 45 175, 91,
7 Oj 1979 54 179, 83.
460700001 Ff1 OPEl-’ 7 01 1977 243 44?. 95. *
460760001 P03 PLEASANT ,ROVE 7 01 1977 346 436, 94.
7 01 1978 329 242, 81.
460780001 FOl PRICE 7 01 3977 333 406, 80.
7 01 3978 191 303. 71. *
460800001 Fol PROVO 7 01 1977 332 897. 93,
7 01 1978 327 954, 95.
460900001 P02 s tr lAKE Co 3977 14 330, 114. *
4092000 1 Ff1 SALT lAKE CITY 7 01 1977 349 473, 122.
7 01 3()7 344 784. 103,
4.0970001 P01 SAlT tA F CITY 7 01 1977 45 281. 102.
7 01 1978 49 261. 99.
4r.0970004 Pot SALT LAI’P C11 7 03 1977 3113 414. 98.
7 0) 3978 286 411. 76,
46(U 60flfl3 vOl SA’ 1 1 14!) ‘$) 7 01 ¶977 115 310,
*“ flp;NOTES A V43IIF OKP1 IFO FRtI l lATA J I1C11 I , ‘ nT EFT SAPnPn ’ StJ:1)!AR1 - LI 1fl.•4 CPLTEPIA DI . ’ fiAoP .5 Gu1oF:l.PJE 1.2—040. VOl. iC 2.3.0

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10—11 —79 ‘ ATToNA1. EPlWFTl4IC f)A rA RAIIK PAOE 46—0019
STATI tflVl II1’flUY 0Y POILIJTAUT
UIAH
PUT— TU P OLL.L ’TANT SITE AG/ t0CATIO ’ TNT UNIT YF R NIIM 14AX APITH
CODE NA ’P COPE P1W NAME COOE CflUP ORS 0B5 MEAN
ltllilql PARTICULATE 460960001 KU) SAN 1 10AN CO 7 01 1978 17 15. 7. *
46096U002 K03 SAN JUAN Co 7 0 1971 123 220. 33.
7 flI 1978 21 124. 17, *
460960003 K03 SArI JIJAIJ Co 7 01 177 125 346. 38.
7 01 1979 77 27 13. *
461160001 P01 TO0E1.F 7 Oj 1977 322 1799, 59.
7 01 1978 338 207. 51.
461200001 P01 tI PlT I4 CO 7 01 1977 93 190. 36.
7 01 1919 340 105. 35.
461200003 .103 l’IUTAH CO 7 flj 1Q77 3 20. 15. *
461200004 .103 LINTAH CO 7 01 1977 3 15, 13. *
461700006 JO) UINTAH Co 7 01 1977 2 31. 27. *
461200001 .103 UINTAH CC I 7 01 1977 3 22. 18.
461220001 P01 IJTAH CO 7 01 1977 288 416. 95.
7 01 1978 337 271, 88.
461220002 P01 UTAH Co 7 01 1917 210 272. 69. *
461220003 P02 UTAH Cr 7 01 1977 240 245. 99. *
461280001 1(03 WASHINGTON Co 7 1 1917 136 110, 29,
7 01 1978 27 17, 8. *
461280002 1(03 WASHINGTON CD 7 01 1977 140 96, 25.
7 01 1978 26 15, 6. *
461280003 P02 WASHTUGTCPN Co 7 01 1977 229 175, 40.
7 01 1978 155 193. 26. *
1110192 PARTICULATE 460900001 P02 SALT LAKE CD 7 01 1977 1 54. 54. 4
4210111 CARBON MONOXIDE 460060001 POt ROIINTIFIJI. 1 07 1977 5018 27,0 1.8 *
1 07 1978 7630 18.0 1.2
460520001 P02 NA(NA 1 07 1977 5546 10,0 1.0 *
460680001 P01 OGI)EN 1 07 1971 7909 21.0 2.6
1 07 1978 9144 19,0 1.8
460800001 PAl PHoVO 1 07 1977 8580 25.0 3.0
1 07 1978 6162 23 ,0 2.) *
46fl920001 P01 SALT LAKE CITY 1 07 1977 8455 31,0 2.9
1 01 1979 8.47 27.0 2.4
461220001 POt UTAH CO 1 07 1977 2197 11.0 .7 *
4210121 CARROrI r4flNflXTI)F 461200006 .103 11 1P4T4 1 1 rn 1 07 1977 360 .9 .3 *
4240113 SULF(IR flT r)XIPE 460160001 P01 CEllAR CiTY 1 07 1977 6247 ..3 .03 *
1 07 1978 3632 .42 .03 *
460440001 P01 I(EARMS 1 07 1977 2474 .51 .02 *
460480001 P01 IFHI 1 07 1977 4861 .10 .01 *
461160001 101 TUl1l [ E 1 07 1971 6776 1.24 .02
1 07 1978 7132 .68 .01
4240114 Slil,FIlR I)IOXTrE 460570Q02 1 i 6 l t A( UA 1 07 1971 1809 1 .600 .134 *
460900001 007 SAlT LAKE C l ) 1 07 1977 2016 7.540 • 093 *
4240116 SIJI.PHR DI’JX LOP 460060001 P01 llitJ EtPlI(, 1 07 I 971 7629 • 450 • 013
1 07 1078 0217 .20( 1 .007
160140001 P02 Cf .14 .lflJ CR 1 07 1917 7794 .050 .001
1 07 1939 3901 .030 .002 *
4l,fl2 0 4 FlY (‘I ) 1 01 1977 3161 .010 . 0j 4
A r .F8 jVl.fl FR ( 1 14 1 )ATA M I I I co o* b r ‘F T SAII Afl Stb . IZA1 1fl CRI)FP IA (1E .lAnDS 0( 1 TREIPIE I • 2—040 • VOL C 2.3 • 0

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PAC.E 46—0020
.002 *
.001 *
.001 *
.052 *
.004
.002
.004 *
.007 4
.012 *
.001 *
.001
1. S
1. *
1. *
1.
.003 *
..001 *
.001 *
.001 *
,002 *
.001 *
•1(17 4
.036
.001 *
.006 *
,004 *
•015 *
•007 S
22.
.024
.020
p007 *
.007 *
0fl5 *
.006
•000 *
•005 ‘P
.003 *
.003 *
.016
.014
.003 *
.029
.027 4
.025
.022 *
.044 *
3. .C 2.3.0
10—11—79 U T T ’ I’TI L ?iI Ri ) .’FT IC T RAFJI(
STATE P’VV T(lRY \Y pn’ UTAVl
UTAH
PflV.—MTH PflI,I (J1’AMT SiTE M/ t .flCATjr . TNT IJP I? YEAR NUN MAX ARITH
C 3UF $AMF OOF P11.3 1.AMI CODE CDIW 08$ 085 MEAN
4240116 SULFIllI DIOXIDE 4602900u4 F02 Fi ERY CO 1 07 1970 6002 .090
460390001 F03 JIIAfl CO I (17 1978 3379 .010
46040(1002 FD3 KAPIE CO 1 07 1977 651 •001
46(1520001 “2 PiAc,W* I 07 1977 6192 .930
4606900(11 Ff1) OGDEH 1 07 1977 8613 .110
1 07 1978 7693 ,040
460780001 VOl PRICE I 07 1977 5001 •050
460800001 FOl PRrIVR I 07 1977 6252 .120
460970001 VOl SALT LAKE CITY 1 07 1977 6464 •260
461200001 VOl t’INTAH co 1 1977 1553 .001
1 fli 1978 7702 •010
4612000(13 .303 UINTAH CO 1 (19 1977 342 2.
461201)004 303 IfTPITAH Co i 0 1977 340 5.
461200006 .303 tJPfTAH C l) 1 ( 8 1977 1059 1.
461200007 .303 1JINTI%R C D 1 00 1977 338 4.
461220001 FOl UTAH CD 1 07 1977 5730 080
461290003 V02 WASHINGTON CC 1 07 1977 5702 p 010
1 07 1978 2621 ,020
4240120 SULFUR DIOXIDE 4602800 ( 15 F03 EMERY Co 1 07 1978 751 .010
460400002 F03 KANE CO 1 07 1977 1457 ,060
1 07 1978 3007 •030
460520001 F ( 12 MAGMA 1 01 1977 2200 1.130
1 07 1978 0624 1. 03 O
460560002 F03 MILLARD CD 1 07 1979 3572 .050
460790001 FOl PRICE 1 07 1977 2161 .060
1 07 1978 5038 .070
460920001 VOl SALT I AKV CI II 1 07 1977 2181 .230
1 07 1978 6113 .120
4240191 SlIY.FUR DIOXIDE 460920001 P01 SAL.? LAP E CIT! 7 01 1977 58 163.
4260214 W ITROC,EN DIOXIDE 460060001 Ff11 RO IJNTIFIJf, 1 07 1977 8716 •200
1 07 1979 7690 •150
460140001 Ff12 CARBON CO 1 07 1977 1561 040
1 07 1979 3990 .040
460280004 F02 FMrRY Cl) 1 (17 q77 4959 •040
1 07 1978 7586 • 040
4 02Sftfli ç VIIVOY CD 1 (17 19711 980 •040
460300001 F)3 iflA!( CD 1 07 1978 4171 .030
460400002 VOl KAI’P CO 1 07 1977 999 .030
1 (17 1979 3158 .020
4óflSflflOl Ff1? RA( tca I (17 1971 9161 .120
1 07 1970 8500 •100
46056000? P C3 1I.l .AR() CO 1 07 1978 2907 .040
46Rf10o ‘i c ’GnF..N I f17 1977 0470 •180
1 07 1q78 4738 .110
46flf400A0) P0% PlH1Vr ) I 07 1977 791 .110
07 1970 2809 •090
46n97 Afl1 SAlT LAK CITY 1 07 1Q77 2919 •250
46fl l?0( 01 F) SAl I I,Ah : rh 1 I ( 7 t 77 7404
IWHflTFS A Vr..f ( IV tFQ)VF:fl PPfl I)A1 ’’ ( V (ITC I ( ro ior ‘I P1 s,pr,i. so •‘o ‘ 7 tit rpf l :RT 1 f1 nAUPS GI1IOEIP’E 1.2—040 • WOE,

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10 1 1—7’4 147 iUIAI, 6! I T 11C P TA RANK PAGF 46—0021
sTArl iflVFlT kY ‘ Y PlLI U1Ai T
( Ii OH
!‘flL!,LJ1 O ’T S1TE G/ 1,flCATir i TNT 11fl1P Y ’AR NUM MAX ARITH
P I,J NA F C0OF CO ! ORS OBS
42f 02l 4 NTTHflGV I t’f !IXIDC 4 0920flt l FOl 6t.T !,AKE CITY 07 1978 Q00 • 140 .015 *
461kA000 1 Fol IItt}TAH CO 1 07 1917 1788 .050 .009 *
1 07 1978 4167 .080 .010 *
461200006 Tn3 IIINTAJI Co 1 07 1977 311 .006 .003 *
4612200o1 FO) ! !1’AH CO 1 07 1977 9604 .080 •013
1 07 1978 8283 .070 .013
461280003 F07 WASHIFIGTON CO 1 07 1977 54 .030 .003 *
1 07 1918 1922 .020 .003 *
4260284 HTTHOGFU llTflX10 . 460920001 P01 SAt T LAKF CTTY 7 01 1977 53 119. 44.
4310121 1’fll’A1, ! !YDROCARRON 461200006 JO) UjNTAI Cfl 1 07 1977 360 4.3 2.0 *
4420111 OZONF 460060001 Ff1 POIINTTF1IL 1 07 1917 8614 .145 .025
1 08 1978 8688 214. 29.
460520001 F02 MACHA 1 07 1977 1303 .037 .009 *
460690001 Ff1 0C.t)EN 1 07 1977 4797 .115 .020 *
1 08 1978 6511 120. 29. *
460000001 Ff1 PROVO 1 07 1977 0672 .107 .019
1 08 1978 0430 144. 22.
460920001 F01 SALT LAKE CITY 1 07 1977 8311 .117 .020
1 09 1978 7857 244. 29.
461200006 JO) UINTAH CD 1 07 1977 349 .050 .028 *
461220001 rot UTAH CO 1 07 1977 0554 •079 .021
1 08 1978 4453 86. 27. *
OFNOTFS A VM.’2 %PIVEO r’* A A n rri ‘ r SNMONI S MARt7J Ti0h CRITERIA 1F HAOP G !,Ir ErIME 1 .2—040 VOL F.C 2.3.0

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*0—11—79 ; rTr : 1. 1, :I II ETD1C I’ 1’ PA ’K PA( F 520022
rt Ti UT P i ,(.?IT !T
PI1I.I,UT N1 S1TF Ar ,! I,fh’ATION IhT UNIT Y1 .Aft NUN MAX ARITH
CflI’ PflJ C0I)E COUE OHS MEAN
¶110*91 PA T1CIli.ATE S?fl”40001 Ff1 PT( HORN C ’ 7 1 *977 41 120, 4.. *
7 01 1978 57 210. 47.
570060001 FU3 IILIFFALO 7 01 ic’ii 30 27. 10. *
7 01 1978 45 37. 14,
520000001 FOl CAMPHFLL Co 7 01 1977 8 35. 24. *
570000002 Fib3 rANPIIELL co 7 01 1977 43 91. 27.
7 01 1978 27 80. 20. S
5201000o3 F03 CARBON CL’ 7 01 1978 7 136, 47. *
520120001 FO1 CASPFR 7 11 *977 60 164. 67.
7 01 1978 18 l7 . 74 , $
52014000* Fifl CHHIW 7 01 1977 57 84, 42,
7 01 1910 61 134, 46.
520160001 Ff1 CODY 7 01 1977 33 1.9. 39. *
520180001 F 03 CONVF.RSE CO 1 01 1977 52 90, 35.
7 01 1978 21 53. 22, *
520100006 F03 CONVERSE Co 7 01 *977 52 72. 14.
7 01 1970 44 60. 18. *
520200001 £01 CkflflK CO 7 01 1977 8 78. 47, *
520200002 £03 CROOK CO 7 01 1977 57 48. 13.
7 01 1978 55 48. 14.
520220002 Ff1 DOIJCI,AS 7 01 1977 33 152. 27. *
7 01 1978 12 2?. 10, *
520220002 F 3 OOLIr,LAS 7 01 1978 52 118. 26.
520240001 Ff1 F.VAHSTON 7 01 1977 51 167. 62.
7 01 1978 42 137. 61,
520260001 Ff3 FREI 1ONT CO 7 01 1978 7 3. 2. *
520280002 Ff1 GIlLETTE 01 1978 13 176. 64. *
520300001 Fo3 C.I1SHFN CO 7 01 1977 37 43. 15. *
520300002 F03 (.OSI4EN Co 7 01 19’7 31 35. 16, a
520300003 Ff1 GUSHFN CO 7 01 1977 50 109. 33.
7 01 1970 57 119. 29.
520320001 Ff1 (QEFM RIVER 7 01 1977 43 100. 44. *
520360001 F03 . I4IJSON CO 7 01 1971 57 30,
7 01 1978 SO 27.
5204000n5 £01 LARAMIE 7 01 *977 53 85. 40.
7 01 1978 53 119. 41.
520440002 11i I1IICOLTI Cit 7 01 1977 59 142. 29.
7 01 1978 ¶5 44. 21. S
52fl440002 v”l I.I!’Ci ’LP C l 7 01 1978 58 110. 35.
20440flO3 F ”l j’ r LfJ (il 7 01 1977 16 39. 19. *
7 ft 1978 17 53. 28. $
520480001 £1 “F ’ICASThI’ 7 01 *977 55 75. 26.
7 01 1978 13 31. 12. *
S2 4#0001 r .r ‘J,CASTLF 7 flj 1979 2’) 58• 23. *
5704R()007 I1 ‘ CASTLf 1 01 1978 27 109. 41.
2n5r’Onn1 103 ‘ nI R R6 Cf 1 ft 1977 12 24. 11 *
7 flj 1979 49 56.
524 7fl077 V. p f 7 P1 1077 49 9
$$ DF’OTFS A v*v.siF i’Ei Pr Tb Vtffl’. ‘lA ?l}bTrIz fij I nr ‘I .t .T fu i SII’l .APIZSfl i COITI ft IA 1W (IAOP.S r,i,Tnt. LINE I • 2—040. viii, , SEC 2.3.0

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1JATJflt At, P ThFTt1C OATA 960K
STATf: jOy 1 I RY HY 1,JV,I,IITANT
WY U ,4 I
520580001 rot PAWliINS
520580001 F03 RAWLIIIS
520600001 Jr0 1 RIVERTON
520620001 Vol POCK SPRIIIGS
520620002 VOl POCE SPRIUCS
520620003 VOl POCK SPRINC5
520660001 P01 SHERIDAN CO
52fl660002 VOl SHERIDAN CO
520660002 VOl SHERIDAN Co
520680001 VOl SURI .ETTE Co
520680001 Vol SIIRLETTE Co
520700001 Vol SWVF .T1:ATER co
520700001 VOl SWFVTWATVR CO
520700007
VOl
SWFETWATIR
CO
520700007
JO,
SWVI TWATFI
CO
520700008
.107
Sw ’r,’wATEp
CO
520700009
.102
SWEETWATER
CO
520700010
.10?
SWEFTWATER
CO
520700011
JO?
SWEVTUATEJI
CO
520700012
JO?
.SWFVTWATER
CO
520700013
JO?
SWEETWATFR
CO
520700014
JO?
S €1’WATI R
CO
520700015
JO?
S 1FETVATER
CO
520700016
VOl
SIjFETWATER
CO
520720001 VOl TEIOO C I)
520 )20001 V )3 Tf1’(tH CO
520740001 V I I TuEp OpoLrS
52071 OOu I J .) 1 : .FTo’-.;)Pr)l,T
520760001 V 1I THy u;Tr) )
520760011 m l T(IJ4PTJGT0I
520i fl( .f’t I I O I bSIIft (4 E ro
5? 7tIO.,I 1 10 CO
01 1978 51 328.
01 1977 50 99,
01 19713 31 31.
01 1977 53 49,
7 01 J91R 13 29,
7 01 1978 34 61.
7 04 1917 56 79.
7 01 1970 52 91.
7 01 1977 44 220.
7 01 1978 61 360.
7 01 1977 61 127,
7 01 1978 42 151.
7 01 1977 55 260.
7 01 1978 60 338,
oi 1971 31 197.
01 1977 54
l 1976 13 55.
(‘1 1918 57 94,
01 1917 60 62,
01 1978 12 8.
7 01 1978 54 36.
7 0 1977 58 102.
7 01 1978 55 121.
7 01 1977 - 56 45.
7 01 1978 12 17.
7 01’ 1970 30 39,
7 01 1917 9 27.
7 (‘1 1977 9 35.
7 01 1977 7 29,
7 01 1977 tO 25.
7 01 1977 5 43.
7 01 1977 3 18.
7 01 1977 5 109.
7 01 1977 6 35.
7 01 1977 6 30.
7 01 1977 57 116.
7 01 1978 5? 63.
7 01 1977 52 51.
7 04 1978 1? 16.
7 01 1978 44 4.,
7 (11 1071 59 58.
7 (11 1970 lfl 31.
7 (‘1 1970 tO 33.
7 01 1971 40 03.
7 01 1970 14 43,
7 Oh 147H 30 64.
7 01 1977 21 17.
ft 1917 45 140,
w flIloPs GIJIIWI,IHE 1.2—040. vIm
PA( E 52—0023
Pfl l— RTH PBLTJITANT srrE AG! L OCATi ON tilT uNIT YEAR NUN MAX ARITH
COOF NAME rOOF; PRJ P4 64E C UE C00P 09$ OIlS MEAN

1110191 PAR1’TCIILATE 520520007 Ffl3 PARK CD 7
520540001 VOl PLATTF.C0 7
.7
7
7
7
7
7
7
. 7
23,
16.
15.
23 ,
13.
19.
37.
40,
94,
130.
52.
60.
61,
61.
72.
28,
29.
29.
11.
5.
13.
37’
38,
10.
11.
17,
20,
23,
21.
20.
30,
15.
65,
21.
23,
21.
22.
11,
6,
ii.
23.
17.
17.
34.
22.
27.
4.
21.
$
*
*
*
*
*
$
*
*
*
*
*
*
*
1*
*
S
*
$
*
*
I
2.3.0
flEOhlrI .S K ‘I 1 ,(1 0l ’P SIrO I 0 1 W ft I I ) . I n i II .V1’ S7 fl’.F i ’ SUi ’4A01 7,ATI (IJI CPITKR 4 ft

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10—11—79 IA Trolot, A JI T 1C DATA RANK PAc ,E 52—0024
SrATK (“VFMI’i)PY DY P!1b .IPTArlT
jyrip IN:
PflL— 1TH POlLUTANT S]T A / LOCATIOrI TNT U”!? YEAR NUN MAX ARTTH
Cfl OF NA I8 CIJOC PKJ IIAME CODE COOP OBS flhlS MEAN
1140391 PARflCHLATI 520870003 P03 UI Tfli Co 7 01 3979 27 46. 17. S
5208 )0001 POt WUPATLAI4D 7 01 1977 47 79. 31.
7 01 1978 53 194, 44 ,
520840001 VOl WORLAND 7 01 1977 59 90. 42.
7 01 1978 59 105 , 46.
32086000t P03 Y :LLflWST ’,; hlAT PARK 7 01 1917 37 31, 1.,
7 01 1978 12 533. 52. *
4240111 SiJL V CT’)XTOI 520700016 P03 t’ FPTWATER co 1 07 3978 1144 ,03 .01 $
4240116 St LF 8 ;JQXIDE 520100006 Ff33 C00VERSb CO 1 07 1977 8437 .050 .001
1 07 1978 4965 •‘ 4O .001
520700010 VO l SWF3.TWATFR CO 1 07 1977 8550 .130 •001
1 07 1978 5134 .150 .001 *
4240191 5tfl . tiP TflXIDE 320000001 Ff33 CAMPRELL CO 7 01 1977 10 3. 3. $
520120001 F01 CASPFR 7 01 1977 58 23. 4.
7 01 1978 35 29. 8. *
520140001 VOl CUETEUtIE 7 fl3 1977 57 21. 4.
7 01 1979 15 6, 3.
520180004 VO l COIIVFKSE CO Oj 1977 41 3. 3. *
52022000? VOl OIIIJCLAS 7 01 1978 10 3. 3, *
520220002 P03 DOUGLAS 7 01 1978 10 3. 3. S
520300001 P03 COSIIEN CO 7 01 1977 30 3, 3. *
520440003 Ff33 LIPICOLN Co 7 01 1977 16 3. 3. *
7 01 1978 4 3. 3. *
520500001 P03 NTORRARA CO 7 01 1977 13 3. 3. *
7 01 1979 12 3. 3.
520540001 VOl Pt,*T1 E CO 7 03 1977 58 6. 3,
7 01 1978 13 3. 3. *
520620001 VOl ROCK SPRINGS 7 03 1q77 44 4. 3. *
7 01 1978 15 7. 3. *
5201000n8 JO? SvJPF.TWATFP CO 7 01 1977 4 3. 3. *
520700009 107 SD ’F:TWATER co 7 03 3977 3 3, 3.
520820001 P03 RFSTON CD 7 01 1977 54 13. 3.
7 01 1978 14 3. 3. *
520860001 PAl YFI,l.OWSTONE NAT PARK 7 01 1977 51 3, 3.
4240197 SHT.FDP oTrixiflE S20 1 nol Vol ros i a 7 01 1978 3 3. 3. *
52014o001 Vol CI4FYF1P1E 7 ( 13 3978 30 6. 3 *
52027000? P03 P fl’G [ AS 7 03 1978 27 3. 3. *
520280007 POt r,1bh,FtTp 7 01 3970 21 3. 3. S
5704800o7 Pot ‘ C St’LF 7 01 1978 36 16. 4. *
520500001 VOl JL DRAHA CO 7 (11 1978 10 3. 3. *
4260731 ‘um’ c , OT1XIOE 520700010 VOl S I. ,’ ATF:4 crt 1 07 1910 1208 .08 .01 S
4240714 ‘rr’ V,. OTrJXTTW 520100000 pol rr nvvw5F; C i) 1 07 1971 8493 .030 .003
1 07 3978 1713 .040 .003 *
320100010 p03 S, F 9’i ATf:9 CD 1 07 1917 4457 ,090 .005 *
1 07 1978 2276 .080 ,00S *
4240 ?K4 [ iTOXIJiF 5200800o 1 Fu eli”I’FEI,b C i ) 1 01 1977 lO tO. 4. S
52Al?rionl ‘‘l Cf. I’ID 7 flI 1977 59 48.
7 01 1918 24 07. *
l) lflt Ii IIIF 0 1R ) VFD tQr .i i’AIIi Ii I C li D I I n j ;vi:r f AI oAii SiflilAll 1ZA TDtJ CP1rr:PIA iF IAOPS f,Il rOPLI NE I • 7—040 • VOL 3 • SPC 2 • 3.0

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10—11 79 T1rlAT. ;Rn F:r rc OAT* RA7’II( PAt 52—0025
SrAT INVFI’ ORY I y Pn!,L tT6NT
WY UN I N (
SITE Ar;/ L OCATII,U TNT UNIT YEAR NUN ARITH
CflO E NA”E (OflF PRi UM IE C(lflE COOE O I lS 00$ NF.I IN
4260284 NITHOCFI LITUXIOE — 520*40fl01 VOl CHFYF NHE 7 01 1977 53 61. 26.
7 01 1979 59 41. 21.
32.0190004 F03 CONVFRSE f1 7 1 1971 40 1?. 6. S
520220002 F Ill 04 G1*S 7 01 1979 10 4• *
52022(,002 F0 D0I .U;TAS 7 01 1979 50 10. 4.
32029002 FOl CILLFrTE 7 01 1978 20 23. 12. *
520300001 F03 COSHF.N CO 7 01 1977 32 31. 6. S
520440003 VOl lINCOLN CU 7 01 1977 15 3 3• *
7 01 1979 11 25. 10. *
520490007 F I ll NEWCASTLE 7 01 1978 21 18, 6. *
52050000i F03 NIOORARA Cl) 7 01 1977 13 6. 3 *
7 01 1979 54 9. 5.
520540001 F03 Pl AT1E CO 7 Oj 1977 59 9. 3.
7 01 1979 40 15. 6. *
520620001 VOl ROCK SPRTI.GS 7 01 1971 45 51. 26.
7 01 1979 61 58. 29.
520820001 F03 WESTOU Co 7 01 1977 51 21. 5.
7 01 1978 30 17. 6. *
520960001 P03 YEI.LOWSTONC NAT PARK 7 01 1971 51 6. 3.
7 01 1978 13 36. 7. *
4420111 OZOHE 520180006 VOl CONVERSE Co 1 07 1977 2912 .110 .025 *
1 07 1978 5344 •070 .035 *
52n700016 Vol SWEETWATER Co 1 07 1977 3105 .060 .022 *
1 07 1978 5517 .070 .027 *
“4’ 1W’IiYIES P. VP.4 ‘%I 4% I1VFl\ VNOU ‘‘ TA l4lrN r’n ;- SPIRI1P.I SI i’.AP 17.91 1fl ’ CRITERIA OF 09003 ( II1flELI4E 1.2—040. VOl. C 2.3.0

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TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing)
1. REPORT NO. 12
.P90812- .7 .9 .--OO .1 - -J -. -•• _
4 11111 ANt) ¶IJBT!TLE
Water and Air Quality Trends in Region viii
(1978 Data)
U.S. Environmental Protection Agency
3. RECIPIENTS ACCESSION NO.
5. REPORT DATE
October 1979
6. PERFORMING ORGANIZATION CODE —
8. PERFOFIMINU OItGANIZATION III I’t It1 NU.
TAiJTHORS)
Thomas A. Entzminger, Richard Sotiros,
William H. labor
9. PERFORMING ORGANIZATION NAME AND ADDRESS
U.S. Environmental Protection Agency
Surveillance and Analysis Division
1860 Lincoln Street
Denver, Colorado 80295
10. PROGRAM ELEMENT NO.
11.CONTRACT/GRANTNO.
13. TYPE OF REPORT AND PERIOD COVERED
Final
12. SPONSORING AGENCY NAME AND ADDRESS
14. SPONSORING AGENCY CODE
16. SUPPLEMENTARY NOTES
in. ABSTRACT
Water and air quality trerid md status for the calendar year 1978 were
determined for the six states in Reqion VIII. These states include Colorado, Montana,
North Dakota, South Dakota, Utah and Wyoming. Data resident in EPA national data bank
(STORET, SAROAD) were analyzed.
Statistical tests which detect significant differences between two populations
were utilized to show trends in both air and water quality. The status and severity
of stream pollutants were determined by relating parameter concentrations to Water
Quality Indicator (WQI) values on a numerical scale from 0 to 100. The status and
severity of air pollutants reported continues to be a direct measure of air quality
standard and alert level exceedences.
I ?. KEY WORDS AND DOCUMENT ANALYSIS
DESCRIPTORS
b.IDENTIFIERS/OPEN ENDED TERMS
c. COSATI licid/Group
Mr Pollution Forecasts
Air Quality
Water Quality
Water Quality Index
Colorado STORET
Montana SAROAD
North Dakota
South Dakota
Utah
Wyoming
IUDISTRIBUTION STATEMENT
.
Rel ease to Puhl 1 C
19. SECURITY CLASS (This Reportf
..Uncl ass i fl ed
21. NO. OF PAGES
20. SEcURITY CLASS (This page)
Unc1 iccifipd
-
22. PRICE
.
EPA Form 2220-1 (Rev. .I...77) PREVIOUS Et)ITION IS 0 1350L1 ii
215

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INSTRUCTIONS
1. REPORT NUMBER
Insert (lie tI ’A r&pnrt ntinitiei .is it appears un (lie cover ot the publication.
2. LEAVE BLANK
3. RECIPIENTS ACCESSION NUMBER
Reserved for use by each report recipient.
4. TITLE AND SUBTITLE
Title should indicate clearly and briefly the subject coverage of the report, and be displayed prominently. Set subtitle, it used, in smaller
type or otherwise subordinate it to main title. When a report is prepared in more than one volume, repeat the primary title, add volume
number and include subtitle for the specific title.
5. REPORT DATE
Fach report shall carry a date indicating at least month and year. Indicate the basis on which it was selected (e.g.. date oJ issue, date of
approeal, date of preparation. etc.).
6. PERFORMING ORGANIZATION CODE
leave blank.
7. AUTHOR(S)
Give name(s) in conventional order (John R. Doe, J. Robert Doe, etc.). List autlior s affiliation il it differs from the performing organi-
zation.
8. PERFORMING ORGANIZATION REPORT NUMBER
Insert if performing organization wishes to assign this number.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Give name, street, city, state, and ZIP code. List no more than Iwo levels of an or ,’anizatiooal hirearcliy.
10. PROGRAM ELEMENT NUMBER
Use the program element number under which the report was prepared. Subordinate numbers may be included in parentheses.
11. CONTRACT/GRANT NUMBER
Insert contract or grant number under which report was prepared.
12. SPONSORING AGENCY NAME AND ADDRESS
Include ZIP code.
13. TYPE OF REPORT AND PERIOD COVERED
Indicate interim final, etc., and if applicable, dates covered.
14. SPONSORING AGENCY CODE
Insert appropriate code.
15. SUPPLEMENTARY NOTES
Enter information iiof included elsewhere but useful, such as: Prepared in cooluerat on wit Ii, ira n.sla lion of, l i eseri ted at con Ference of,
lu he puNished in, Supersedes, Supplements. etc.
16. ABSTRACT
Include a brIef (20(1 word.c or less,) factual summary o the most significant inlormation contained in (lie report. It the report contains a
significant bibliography or literature survey, mention it here.
17. KEY WORDS AND DOCUMENT ANALYSIS
(a) DES(RIPTORS - Select from the fhcsaurus of Fnginecring and Scientific Icruns the proper authorized ternis that identify the major
concept of the research and are sufficiently spcctttc and precise to be used as mdcx entries tot cataloging.
(b) IDFNTIFIERS AND OPEN-ENDED TERMS - Use identifiers for project names, code names, equipment designators, etc. Use open-
ended terms written in descriptor form for those subjects for which no descriptor exists.
(c) COSATI IlELt) (;ROUP - Field and group assignments are to be taken from the 1965 COSATI Subject Catcgory List. Since the ma-
jority of documents are multidisciplinary in nature, the Primary Field/Group assignment(s) will be specific discipline, area of human
endeavor, or type of physical object. The appllcation(s will be cross-referenced with secondary licld/Group assignments that will follow
the primary posting(s).
18. DISTRIBUTION STATEMENT
Denote releasability to the public or limitation for reasons other than security for example “Release Unlimited.” Cite any availability to
the public, with address and price.
19. & 20. SECURITY CLASSIFICATION
DO NOT submit classified reports to the National Technical Information service.
21. NUMBER OF PAGES
Insert the total number ot (Sages, including this one and unnumbered pages, but cxi lude distribution list, if any.
22. PRICE
Insert the pu ute set by I lie National ledu uuuea I In tor,uua lion Servuux. tlit ; ver ii ins—n I I’ri it ing Office, if known.
EPA Form 2220—1 (Rev. 4—77) (Reverse)

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