REGION X
    LL
LY
           T
T AS
MIIDOU


II o li S' 0 ,
           ENVIRONMENTAL
           PROTECTION
           AGENCY
           SEATTLE, WASHINGTON
                   o

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                             EPA 910/8 - 75 - 093

                             July 1975
    Water Quality Analysis of
   The Upper/Middle Snake River

       May 1973 - May 1974
     UPPER SNAKE RIVER BASIN

             REPORT



            PREPARED BY:
       Douglas Houck and
        Ron Kreizenbeck
Surveillance and Analysis Division
        E.P.A.   REGION X
       1200 Sixth Avenue
  SEATTLE, WASHINGTON   98101

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This Document is Available in Limited Quantities Through
The U.S. Environmental  Protection Agency, Region X,
Surveillance And Analysis Division,  Seattle,  Washington.

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A Working Paper presents results which are,  to some
extent, limited or incomplete.   Therefore, conclusions
or recommendations - - expressed or implied  - - may be
tentative.

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                    TABLE OF CONTENTS
                                                        PAGE
List of Figures	5
Introduction 	   6
Findings and Conclusions 	   8
Basin Description	13
     Methods	21
     Results and Conclusions 	   25
          A.  Snake River Summary	25
          B.  American Falls Reservoir   ....   33
          C.  Minidoka	47
          D.  Milner Reach	50
          E.  Brownlee Reservoir 	   55
Appendix A - Figures	60
Appendix B - Idaho Water Quality Standards    .    .    .   113
Appendix C - Raw Data	120

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                   LIST OF FIGURES

1.   Location map - Middle and Upper Snake Sub Basins
2.   Location map - Middle Snake Sub Basin
3.   Location map - Upper Snake Sub Basin
4.   Percentage of Samples Showing D.O. violations
5.   Monthly total phosphorus loading in pounds at
     American Falls Reservoir
6.   Termperature of American Falls Reservoir
7.   Monthly nitrate loading in pounds at
     American Falls Reservoir
8.   Monthly Ammonia loading in pounds at
     American Falls Reservoir
9.   Monthly organic nitrogen loading in pounds
     at American Falls Reservoir
10.   Phytoplankton chlorophyll ji

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                     INTRODUCTION

      Arising in the rugged Grand Teton Mountains of
Wyoming - the Snake River flows through Idaho, forms the
border between Oregon and Idaho and finally merges with
the Columbia River in south eastern Washington.  Its volume
is increased along its journey, by many tributaries and
by groundwater flow.  As the river flow is naturally in-
creased, man diminishes it through agricultural and indus-
trial use.  Since agriculture and agricultural processing
are the main industries in the upper and central Snake Basin,
it is logical that these activities constitute the largest
contributors of wastes and thereby nutrients to the Snake
system's waters.  Nutrient concentrations in excess of
natural  levels result in extensive algal blooms which in
turn depress dissolved oxygen levels in the water.   Furthermore,
aesthetic problems which are both unpleasant and undesirable
accompany such blooms.
      On the basis of a study performed in the Snake River
Basin by the Federal  Water Pollution Control  Administration
(1) further investigation of the nutrient - algae interrelation-
ship was requested by EPA Region X,  Seattle,  Washington.
      (1)  U.S.  Department of the Interior,  "Water Quality
Control  and Management, Snake River Basin,"  Federal  Water
Pollution Control  Administration, Portland,  Oregon,  1968,489  pp,

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    This study was an attempt to determine the behavior of
incoming nutrients in the upper Snake reservoir system and
to trace their flow through the upper and central  Snake.   One
possible destiny for this nutrient load is retention by one
of the reservoirs in the area:  American Falls, Minidoka  (also
known as Lake Walcott), Milner or Brownlee.
     The objectives of the study undertaken  from May, 1973 to
May, 1974, were therefore, 1) to establish a water quality
monitoring program to detect water quality standards violations
(See Appendix B for applicable Idaho State standards); 2)  to
obtain data to show seasonal, point source and non-point  source
variations:  3) to determine whether the American  Falls,  Minidoka,
Milner and Brownlee Reservoirs function as sinks for nutrients,
that is, to determine whether more nutrients flow  into the reser-
voirs than are carried out of them; and 4) finally,  to determine
the adequacy of a water quality monitoring program to fulfill
these objectives.

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              FINDINGS AND CONCLUSIONS

           1.   American Falls Reservoir is an overall sink for
total phosphorus and nitrogen.  For the study period, May
'73 - May '74, a mean reduction of 72% for total phosphorus
and 22% for total nitrogen in the American Falls Reservoir
reach of the Snake River was found.
          2.   Lake Walcott (Minidoka) acts as a "buffering"
system for American Falls Reservoir's discharge during
the irrigation season and a flow-through system for the
rest of the year.
          3.   Between the discharge of Minidoka Dam and the
discharge of Milner Dam, the Milner Reach, there was a mean
increase of 39% in total phosphorus and 9% in total nitrogen
during the sampling period.
          4.   Brownlee Reservoir, during the sampling period,
exhibited a 16% mean reduction in total  phosphorus and a
mean increase of 53% in total  nitrogen.
          5.   The State of Idaho water quality dissolved oxygen,
(D.O.), standards (see Appendix B) were violated at some
time during the sampling period at every station except
the Heise station and the Henry's Fork River Stations.
Table 1 presents the percentage of total  samples detected
in violation at each of the  stations.

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                      TABLE 1



      P.O.  VIOLATIONS - PERCENT OF TOTAL SAMPLES TAKEN



 Snake @ Roberts           5.5%     Milner         33.3%



 Blackfoot  River          26.3%     Main Drain     43.0%



 Snake @ Til den           10.5%     Snake @ Mars ing 5.3%



 Portneuf River           50%       Boise River    40.0%



 American Falls            5.3%     Snake @ Weiser  5.3%



 Minidoka                 11.1%     Brown lee       68.4%



      6.    The table below indicates the number of samples



(in percent)  in violation  of the State of Idaho fecal



 coliform bacteria water quality standards for the total



 sampling period at each station (in violation of Idaho



 standards).





                      TABLE 2





 FECAL COLIFORM VIOLATIONS - PERCENT OF TOTAL  SAMPLES*



 Blackfoot  River          16.7%     Milner         41.2%



 Snake @ Til den           11.1%     Main Drain     35.7%



 Portneuf River           22.2%



      7.    The Main Drain  violated the Water Quality Stan-



 dards for  pH on December 3, 1973.



      8.    The monitoring  system constructed for this  survey



 reveals an accurate picture of the water quality in the Upper



 Snake basin.



      *  NOTE:   The coliform bacteria sampling area  was



 from Milner Dam to Heise.

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Recommendations
     1.   The Portneuf River should be intensively studied to
determine the source of the large amounts of nutrients in it.
     2.   The tributaries to the Snake River around the Boise
area, the Payette, Boise, Weiser, Malheur and Owyee Rivers;
should be examine further to determine the origin of large
amounts of phosphorus which were detected.
     3.   The stations listed as primary in the following table
should be monitored on a regular basis.    These stations are most
important in showing major trends along  the Snake River.  They
are located in either the mainstem of the Snake or at the mouths
of major tributaries.  For the most complete monitoring of this
basin,  water should also be sampled regularly from the stations
listed  as secondary in Table 3.
                            10

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                                         TABLE 3
          PRIMARY
STA. NO.   STATION NAME
   16      Sn. (3 Heise
   17      H.F. 0 Rexburg
    9      Portneuf River
    8      Bl. American Falls
    5      Bl. Milner
    4      Sn. @ Marsing
    3      Boise River
    2      Sn. @ Weiser
    1      Bl. Brownlee
 TREND STATIONS

 SECONDARY
STA. NO   STATION NAME
   22     Falls River
   21     H.F. @ Ashton Res.
   20     Teton River
   19     H.F. Ab. St. Anthony
   18     H.F. S. of Parker
   15     Sn. 2 Mi. E. of Roberts
   11     Spring Creek
   12  '   McTucker Spring
   14     Blackfoot River
    7     Bl. Minidoka
    6     Main Drain
     BIASED
STA. NO.   STATION NAME
   10   Spr. @ Rowland's Dairy
   13   Sn. @ Til den Bridge

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Station No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
TABLE 4
STATION IDENTIFICATION
Storet Sta. No.
403004 :
153004 :
153005 1
153003 :
153001
150057 1
150032 !
153357 !
150038
153287 !
153292 :
153281
150047 :
150048 1
153299 :
153360 :
153359 1
153358 1
153355 1
153156
153361 \
153356 1
            Station  Name
       Snake  River Bl  Brownlee  Dam
       Snake  River at  Weiser  Idaho
       Boise  River West of  Parma  Idaho
       Snake  River at  Marsing Idaho
       Lake Milner at  Milner  Dam
       Main Drain @  950 West  Road
       Snake  R. BLW  Minidoka  Dam
       Snake  R. BLW  American  Falls Dam
       Portneuf R at Siphon Rd  Br
       Spring @ Rowland's Dairy - Pocatello
       Spring Creek  at Bronco Rd.
       McTucker Spring
       Snake  R. at Til den Bridge
       Blackfoot R.  at Mouth
       Snake  River 2 mi. E. of  Roberts
       Snake  River Near Heise
       Henrys Fork at  Rexburg
       Henry's Fork  South of
       Henry's Fork  Above St Anthony
       Teton  R. N. of  Newdale
       Henry's Fork  At Ashton Reservoir
       Falls River NR Mouth
12

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           BROWNLEE
           RESERVOIR
Figure 2.  Middle  Snake  Subbasin Monitor!no Stations

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                                           HENRY' S     19
                                           FORK      18

                                                  IT

                                                15
                                                            16 _
                                                      SNAKE R.
                      PALISADES
                      RESERVOIR
AMERICAN FALLS RESERVOIR
                                                         BLACKFOOT  R.
            LAKE WALCOTT
PORTNEUF R.
MILNER RESERVOIR
                                           Figure 3. Upper Snake Subbasin Monitorina Stations

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         MIDDLE  SNAKE / UPPER SNAKE
 N-
                        Scale of Miles
                            N
                                                 St.
                             UPPER SNAKE SUBBASIN
                                             IDAHO FALLS]
MIDDLE SNAKE SUBBASIN
                                                \POCATELLO
                        'TWIN FALLS  BuTley
                                     Finure 1. Middle and Upper Snake Subbasins

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                BASIN DESCRIPTION



      The headwaters of the Snake River are located in Yellow-



stone National Park.  In Wyoming, the river is augmented by



inflows from the Buffalo Fork, Gros Ventre, Hoback, Greys and



Salt Rivers.  Entering the Snake River Valley near Idaho Falls,



the Henry's Fork joins the Snake which then begins its crescent-



shaped course through the southern part of Idaho.  Throughout



much of its course in the upper valley, the river approximately



parallels the southern edge of lava flows which cover a large



portion of the Snake River Plain.  The average stream gradient



of the Upper Snake subregion is approximately 10 feet per mile.



There are several  falls along its course, the highest of which is



200-foot Shoshone Falls near Twin Falls,  Idaho.



      The principal  contribution to stream flow in this section



of the Snake is snowmelt during the spring and early summer



months.  Precipitation is light on the semi-arid valley floor



and occurs mostly during the winter.



      The greatest use of water is irrigation, though water is



also used for hydroelectric power generation,  municipal and



industrial  purposes and recreation.   Irrigation began in this



region over one hundred years ago, and has increased until  now



nearly 2 million acres are irrigated  -- almost one-third of



the irrigated land in the entire Columbia-North Pacific Region.



      The average discharge from the  Upper Snake subregion is

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estimated to be 8,590 cubic feet per second (cfs).  It is
estimated that the average withdraw! for consumptive uses is
17,600 cfs or 205 percent of the average discharge from the
subregion.  Of this 17,600 cfs, approximately 99 percent is
withdrawn for irrigation.  The small remaining withdrawals are
made primarily for municipal supplies and for self-contained
industrial uses.
     Primary goals of streamflow management within the
subregion are sufficient supply for various users and pre-
vention of flood-caused damage.  There are nine impoundments on
the main stem of the Snake River above Milner Dam and in the
Henry's Fork Basin which are integrated into a system operation.
Power is generated from the releases at four of the reservoirs.
In general, the reservoir operation pattern is one of storage of
excess natural streamflow during the winter and spring months,
then release of storage to augment natural flows during the
summer irrigation season.  Sufficient storage capacity is now
available to control the Snake River so that no excess flows will
pass Milner Dam.
     The basins and plains are underlaid chiefly by alluvial
deposits and younger basaltic volcanic rocks.  Precipitation
is generally less than 10 inches per year and recharge of the
Snake Plain aquifer from precipitation is minor.  Host of the
recharge is by infiltration of surface runoff generated on per-
                             17

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ipheral  mountains and highlands.   Prior to extensive irrigation,
recharge was mainly from influent seepage from short creeks ter-
minating in the alluvium at the base of mountains and from the
Snake River, Teton River and Henry's Fork.  After settlement of
the area, seepage from irrigation became a very important source of
recharge to the Snake River Plain and peripheral  basins.   Leakage
from hundreds of canals and farm laterals and seepage from irriga-
tion farms have greatly augmented flow into the underlying aquifers.
The aquifers underlying all peripheral basins, except those basins
downstream from Milner Dam on the south side of the Snake River
discharge into the Snake Plain aquifer; much of the surface discharge
from the same basins also becomes recharge to the aquifer.  Dis-
charge from the Snake Plain aquifer is into the Snake River in
two reaches; the American Falls Reservoir reach and the Hagerman
Valley reach.  During the decade 1951-1960 the aquifer discharged
an average of about 2000 and 6,500 cfs into the respective reaches.
All of the water discharging into the American Falls Reservois
reach is rediverted for irrigation and constitutes a portion of
the 6,500 cfs discharging in the Hagerman Valley reach.
     The average annual discharge of the Middle Snake sub-
region is 16,338 cfs.  This show an increase of 7,748 cfs within
the subregion.  There is an average annual withdrawal of 8,410 cfs
of which approximately 97 percent is used for irrigation.  The
flows discharged from this subregion  are largely controlled through
the operation of Brownlee Reservoir which  has approximately 1
million acre-feet of active storage capacity.  Recharge in the

                             18

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valleys and basins is partly from lateral groundwater inflows
and precipitation, but. chiefly from irrigation.  Surface inflow
within the subregion is comprised mainly of the Boise, Payette,
Weiser, Owhyee and Malheur Rivers.  The contribution from ground-
water to the Snake River is minimal.  The tributary streams
east of the Snake River provide the major runoff volume within
the subregion due to the larger amounts of mountainous terrain
and greater snow accumulation in their drainage basins.
                            19

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20

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METHODS:
    The 22 stations on the Snake River and its tributaries from
Heise (downstream from Palisades Reservoir), River Mile (R.M,)
858, to below Brownlee Dam, R.M. 285, were sampled bi-weekly from
June through February and for the remainder of the year monthly
samples were taken.
    Flow measurements at most stations were obtained by recording
the stage height at the time of sampling which was then converted
into flow rates through the use of current rating tables pro-
vided by contract with the U.S.G.S.  Flow measurements from
the reservoirs were obtained from daily mean flow records pro-
vided by the particular regulating agency of the dam.
    Field measurements for Dissolved Oxygen were made by the
modified Ninkler Azide method.  The pH and conductivity analysis
were made on site using calibrated meters.  Alkalinity was determined
by titration with a standard solution of ^$04 to the two equi-
valence points indicated by color change.  Nutrient determin-
ations for N02, N&j, total phosphorus and ortho-phosphorus
were conducted in the Seattle Regional Laboratory on a Tech-
nician Autoanalyzer.  Total kjeldahl determinations were
made using standard techniques.  Samples were preserved in the
field with a 1:1 H2S04 solution, iced, and shipped by air to the
laboratory at the end of each sampling day.  Organic Nitrogen is
determined by subtracting ammonia determinations from total Kjeldahl
determinations.
                             21.

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    Heavy metal samples were preserved with 25 ml/1 HN03
analyzed at the laboratory by atomic absorption spectrophoto-
metry.
    Phytoplankton chlorophyll a^ determinations in each reser-
voir were obtained by filtering 100 ml samples on a 0.045 micron
mi Hi pore filter and immediate freezing with dry ice, then
shipping them to the laboratory for spectrophotometric analysis.
Periphyton chlorophyll .a in flowing waters was collected by
exposing aritificial substrates (glass microscope slides mounted
in partially submerged wood frames).  The slides were removed
from the frames at each visit to the sites, preserved, shipped
and analyzed in the same method as the phytoplankton chloro-
phyll a_.
    Pesticide samples were obtained for two periods during the
study on both whole water and sediment at each station.  The
sampling was conducted during low flow in the fall and immediately
following high flows in the spring.  Whole water samples were
taken in glass jars with teflon lids and preserved with 2 ml of
acetone.  They were shipped to the lab and analyzed using a
gas chromatagraph equipped with an electron capture detector.
Some conformations were run using a GC Mass Spectrometer.
    A "mass balance" technique was employed to determine how the
reservoirs influenced water quality, This procedure views the
reservoir as a total system and considers only the inflow and
outflow.  By running a mass balance one can determine whether
                            22

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a certain reach or reservoir acts as a "sink", a "source", or a
"flow-through-system".  If the reach acts as a "source" then more
nutrients are leaving the reach than are known to enter it.  When
a reservoir acted as a "source" the percentage difference between
the amount of nutrients going out compared with that coming in
was given as a "percent increase".  If the reach acts as a "sink"
then fewer nutrients are leaving the reach then were known to
flow in.  When a reservoir acted as a "sink" the percentage differ-
ence between the amount of nutrients coming in compared to that
going out was given as a "percent reduction".   The bi-weekly
loadings or amount of nutrients determined during a single month
were averaged together to give a mean monthly loading in Ibs/day.
This was then multiplied by the number of days in that particular
month to give a monthly loading in pounds.  If for any reason some
data was missing for a particular sampling date from any of the
stations being considered then that sampling date was not in-
cluded in the mass balance).  Therefore, because the Main Drain
was frozen over for both sampling dates during the month of Jan-
uary no balance was performed for the whole month for the
Milner Reach.  This also explains the omission of the data from
May, 1973.
    The three time periods, Jun-Sep, Oct-Jan, Feb-May, were
chosen because the reservoirs seemed to undergo three distinct
phases during the one year sampling period.  The first one, Jun-
Sep, coincides with the irrigation season. The second time period
                            23

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Oct-Jan, coincided with the low flow period and for the Milner



Reach with the Amalgamated sugar processing season.  The third



period, Feb-May, coincided with the high flow season and also



the time when only one sample  per month was taken.   These two



factors probably resulted in a lowering of the accuracy of the



mass balance during this time  period.
                           24

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                       SNAKE RIVER SUMMARY




     The Snake River begins as a river of high water quality and




metamorphoses into a river of high nutrient and pesticide levels




and low dissolved oxygen level by the tine it leaves Brownlee




Dam.  Total phosphorus, nitrate-nitrogen, and total Kjeldahl




nitrogen increased 830, 303, and 592 percent (see Table 5)




     Notable levels of BHC (hexachloracyclohexane), were found at




the upstream station at Heise; however, at the downstream station




at Brownlee Dam notable levels of several pesticides (DDT,DDE,




Dieldrin, and BHC) were found.  The station with the highest pesticide




level was the Boise River west of Parma.




     An analysis for the pesticide content of fish taken from the




Boise River was completed  in July 197^-  The fish were removed




from the river at the Broadway Bridge in Boise and at the town of




Notus.  Results of the analysis show DDT and its metabolities DDE




and ODD (DDT) present in all samples.   (See Table f)  All the fish




except one from the Notus area contained DDT concentrations  ranging




from 1.1 to 1.8 ppm.  The exceptional fish had only ^.^fl opm PHT.




The Boise area fish had only a fraction of the DDT concentrations




noted in the Notus fish.   They, again with only one exception, had




DDT concentrations in the neighborhood of 0.25 ppm.  The exception




had only 0.05 ppm.  These data indicate a substantial input of DDT




into the area between Boise and Notus.  Additionally, pesticides




were found in the water including DDT,ODD,DDE,diel drin,endrin, and




1indane.
                               25

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                                                           TABLE  5
PARAMETER
PERIOD
                           HEISE
                                     ROBERTS
                                                                                            WEISER
BROWNLEE
T.P. Jun-Scp
(Ibs/day) Oct-Jan
Feb-May
Weighted Annual
Average
T.N. Jun-Sep
(Ibs/day) Oct-Jan
Feb-May
Weighted Annual
Average
N03 Jun-Scp
(Ibs/day) Oct-Jnn
Feb-May
Weighted Annual
1^0 Average
T.KJEL Jun-Sep
(Ibs/day) Oct-Jan
Feb-May
Weighted Annual
Average
FLOW Jun-Sep
(cfs) Oct-Jan
Feb-May
Weighted Annual
Average
3057
86
1492

1387
18171
3162
13524

13296
2604
900
7928

4160
15567
2250
6701

9422
10483
1587.
8636

7553
2620
761
5200

2179
25536
10570
29941

19566
5018
4076
15515

6719
20518
6382
14257

12757
10325
4147
15531

8407
1339
893
7111

2475
10005
11597
18861

18627
1758
4592
13964

5953
8247
6969
22239

12608
3876
3309
11972

6193
6149
1298
6704

5031
44477
14533
60425

44734
9633
7422
18416

15692
34741
6994
41584

,.28743
9489
2403
15716

9225
3448
1398
7586

4224
23641
12650
57534

32957
5027
6647
13723

11372
18489
5893
43384

21352
7694
2538
15784

8596
4609
1967
10195

5635
28189
18127
57636

39586
5906
7696
12744

12303
22327
10257
44892

27142
8286
2679
15226

8696
2720
4865
13552

6288
46712
119885
158929

105420
21978
83070
72004

58476
24697
36234
86103

47551
6806
13447
25350

14555
9345
13212
22589

15159
79080
113671
151850

121590
20406
58938
72608

48763
58764
56106
78704

73251
11772
15887
33200

19631
3959
12617
21229

il891
52814
200973
270020

158304
22837
119411
134636

82805
26443
79650
;26143
.
72347
13093
23600
46257

. 26530

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INi
                                                    TABLE 6



                                               DDT IN  BOISE RIVER



                                                  FISH SAMPLES



                                                   July 1974
Station/Sample Date
Collected
ppDDE
ppDDD
ppDDT
DDT
ugm/g

Bass - Boise R. at Notus
Bass - Boise R, at B.Br
Squawfish - Boise R. at
Notus
Channel catfish
Boise R. at Notus
Chizel mouth fish
Boise R. at Notus
Whitefish at Broadway
Br. Boise R.
Suckers - Boise R. at
Notus
Carp - Boise R. at Notus
Suckers - Boise R. at
7-25-74
7-23-74
7-25-74
7-25-74
7-25-74
7-23-74
7-25-74
7-25-74
7-23-74
0.287
0.237
1.091
0.665
0.835
0.133
0.943
1.017
0.050
0.067
0.018
0.217
0.283
0.295
0.022
0.629
0.260
_
0.131
0.010
-
0.270
-
0.057
0.230
-
_
0.485
0.265
1.308
1.218
1.130
0.212
1.802
1.277
0.050
              Broadway  Br.

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     There  are  four  locations  along  the  Snake  where major
 increases  in  the  nutrient  content of the water have been
 located.   These are the  reach between Tilden  Bridge and
 the  American  Falls  dam,  the Marsing station,  the  Weiser
 station  and the Brownlee Reservoir.   Of these,  the greatest
 total  increases were  found at the first location.   Here,
 total  phosphorus  increased by 140%,  nitrate-nitrogen  by 179%
 and  total  kjeldahl  by 150% while the  flow increased only 51%.
 The  source of  the nitrate-nitrogen  is the groundwater flow-
 ing  into the  American Falls Reservoir.   The Portneuf  River
 is  the main source  of the  increase  in total phosphorus  and
 total  kjeldahl.
     The  largest increase in nitrate-nitrogen  alone was  found at
 Marsing.   Here, it  increased  351% with  no real  increase in
 total  kjeldahl.   The  source of this nitrate is  probably the
 groundwater flowing into the  Snake  above  Marsing  in the Thou-
 sand Springs area.
     An increase of  135%  of the total  phosnhorus at Vp.iser rivals  the
 largest total  phosphorus increase at  the  Tilden Bridge  - American
 Falls  reach.    There is no  significant increase  in  total  nitrogen
 here.  The main sources  of this phosphorus increase are the Snake
 tributaries between Marsing and Weiser.
    An increase in nitrate-nitrogen without an  accompanying
 increase of total  kjeldahl  nitrogen is  found  at the fourth site.
Normally, this would  be  attributed  to groundwater  flowing  into
                             28

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the reservior.  However, since there is no appreciable  inflow
to Brownlee Reservoir, it may be assumed this increase  comes
from blue-green algae fixing nitrogen from the air in the water.
This nitrogen fixation appears to occur mainly in the late fall.
    All of the waters studied; reservoirs, The Snake River and
its tributaries, except the Portneuf River, are classified as
Class A2 waters.  The Portneuf River, from the mouth of Marsh
Creek to the confluence with the Snake, is classified as a Class
B water.
    The State of Idaho water quality D.O. standards were violated
at one time or another during the sampling period at every
station with the exception of the Heise station and those in the
HenrysFork Basin.  See Appendix B for copy of applicable stan-
dards.  Table 1 presents the percentage of the total  samples
taken in violation for each station.  As can be seen from this
table and figure 4, the D.O. standards are violated at Brownlee
Dam throughout most of the year.   The Snake, except for Brownlee
and the Milner Reach during the winter, has a minimal dissolved
oxygen problem.  Many of the tributaries studied have D.O. problems,
the Portneuf River has the largest problem.  The Portneuf River
also has a fecal coliform bacteria problem as do the Milner Reach
and the Main Drain.
                            29

-------
               100
co
o
D

0



V
T

0

L

A
rn

I

0
                   !
                90 !
                80_!_



                TO i



                601



                50 i
                                       CO
                                       8
                                       o
                            100
                             200
K M   M
CO CO   CO
1-1 M   K
K o   -y;
P= PI   "C
                                         in K
                                                                                    ..: K
                                                                                         S
     U M
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S H PS L-H
M & ^ I'1'
a; M ST. O
;;-; ~z 
-------
     An overall  review of the upper Snake River reveals the




main problem areas: (1) American Falls Reservoir,  with the




Portneuf River the primary nutrient contributor: (?) Brownlee




Reservoir, with the Owyee, Malheur, Boise or Weiser River,




singly or in some combination improving alnae growth conditions




by increasing the amount of phosphorus so much that blue-green




algea within Brownlee Reservoir can fix large amounts of nitro-




gen from the air:  (3)  Milner Reach, where problems occur mainly




from October through January during the full industrial production




period.




     Other areas of interest are:  (l) the Henry's Fork, which adds




significant amounts of phosphorus, nitrate-nitrogen and small amounts




of DDE, ODD, and BHC:  (2) the spring at Rowlands Dairy, which has




unusually high levels of ammonia-nitrogen, total phosphorus and




dissolved ortho-phosphorus:  (3) the Snake at Marsing, which has very




high levels of nitrate-nitrogen which probably comes from groundwater




inflow  in the 1000 Springs area;  (4)  the Boise River, which has high




levels of phosphorus, nitrogen and Desticides.
                                31

-------
32

-------
              RESULTS AND DISCUSSION

             American Falls Reservoir
    American Falls Reservoir is a long, 23 miles, shallow,
15-30 feet, impoundment that is created by American Falls
Dam.  The reservoir has an active storage capacity of 1,700,000
acre-feet and its primary purposes are irrigation and power.
Water is discharged from the reservoir from spillways located
at the top of the dam and penstocks located at the bottom of the
dam.
    At the American Falls Reservoir, three sources from which
nutrients could enter the reservoir were considered.   Sampler,
were taken just below the dam to determine the amount of nutri-
ents leaving the reservoir.  The three incoming sources for
nutrients were the Snake River, sampled at Tilden Bridge (station
13); the Portneuf River, sampled at the Siphon Road Bridge (sta-
tion 9); and groundwater sampled at a spring at Rowland's Dairy
(station 10), Spring Creek at Bronco Road (station 11) and
McTucker Spring (station 12).  The flow for the Snake River
was determined by the U.S.G.S. gauge station, Snake River
near Blackfoot, which lies 0.3 miles downstream from Tilden
Bridge.  The bridge itself is only one half mile downstream
from the Blackfoot River.  The flow for the Portneuf River was
determined by U.S.G.S. and by comparing the previous year's
flow records.  The flow from the groundwater sources is approx-
imately 2000 cubic feet per second.  This flow is considered
                               33

-------
constant throughout the year.   By the use of Water-Supply
Paper 1654, Plate 4, Contours  on the Water and Flow Net of
the Snake Plain Aquifer, Idaho, and by personal communication
with Art Larson, it was determined that two-thirds,1333 cfs ,
came from the S.E. section of the reservoir.  To determine
the amount of nutrients that groundwater from the N.E. section
of the reservoir contributed,  the concentrations from sampling
stations 11 and 12 were averaged together.   This mean value was
then used with the 1333 cfs to determine the amount of nutrients
from the N.E. section.   To determine the amount of nutrients
coming from the S.E. section,  only one station, spring at
Rowland's Dairy, (Station 10)  was used.
    American Falls Reservoir was undergoing a severe drawdown dur-
ing the summer that it  was sampled.   The normal operating capacity
of the reservoir was reduced by two-thirds  because the structural
safety of the dam was in doubt.  The drawdown began in mid-Hay
and by the latter part  of June, the level  of the reservoir was
sinking at a greater rate.  The drawdown lasted until September 25,
by which time the storage capacity had dropped from approximately
1,100,000 acre-feet to  43,580  acre-feet.  The drawdown was so
severe that when an intensive  survey was done on the reservoir
in late August, the length of the reservoir had in fact, dim-
inished from 23 to 14 miles.
    As can be seen from figure 5, the reservoir acts as a large
sink for total phosphorus from October through June.  During
                              34

-------
the months of July, August and September, however, it functions
as a source, for there is an increase in total phosphorus of 177
percent.  One reason for this large total phosphorus increase
could be the severe drawdown of the reservoir with resultant scour-
ing action on the bottom of the reservoir.  This scouring resulted
in increased turbidity and reduced secchi disk readings of water
clarity from the June twentieth reading of 52 inches to a reading
of eight inches by September 25.  It has also been shown that the
greater the water temperature, the slower the deposition rate for
phosphorus.  (2) This means that phosphorus would travel farther
down the reservoir before it settles out.  Not only was the length
of the reservoir reduced by 10 miles during this time but the temp-
erature of the water was at its highest levels (See figure 6 ).
Referring to table 7 below, it can be seen that the phosphorus percent-
age reduction varies considerably, from a reduction of 347 percent
during the October through January period to an increase of 33 per-
cent during the irrigation season.  Looking at the sampling period
as a whole, there is a weighted annual average reduction in total
phosphorus within the reservoir.  Most of this phosphorus has become
part of the reservoir sediment.  The majority of the phosphorus
entering American Falls Reservoir is not contributed by the Snake
River as might be expected (See Table 8).  Although the Snake River
contributed 74% of the total flow into the reservoir during the sam-
     (2)  Environmental Protection Agency, "Nutrient Management in
the Potomac Estuary, " Chesapeake Technical Support Laboratory,
p. 25.
                               35

-------
         -4-eiziZtztzH
CO
CTl
      o
      N

      M

      V

      T
      O
      T
      *-   lEBazcof
      B
      3
          12252
-I	h
                                                                          -1	1	h
H	1	1
                               OUN   JUU   /MJQ   SET3   CXTT   NCfs/   DEC   JAN   FEB   MAR   APR   MAV   JUN

                                           MONTH     
-------
D
E.
<3

C
E
N
r
IIZLJ-
                                                  SET3   OCT   NCTV   DEC   JAN   IFE3   rnAR   APFZ   I^AY   JU
.V   JUN   OTltL-   A1JS  SE.T3   OCT   N(N/   DEC   OT>

                   T I n E.      
                                                                                                            JUN
                                 Figure 6.  Temperature at  American  Falls Reservoir

-------
to
oo
PERCENT REDUCTION*





June-September


October-January


February-May


**   Weighted Annual


     Average


PERCENT INCREASE*





June-September


October-January


February-May


      Weighted Annual


      Average
                                                     TABLE 7


                                      AMERICAN FALLS NUTRIENT CONTENT CHANGE
Total Phosphorus
-25%
347%
97%
Total Nitrogen
-32%
195%
24%
Nitrate
153%
271%
152%
Anmonia
-269%
73%
41%
 72%





Organic Nitrogen


     131%


      38%


      36%





      56%
                                                             22%
182%
7%

-------
       Percent reduction as used here expresses the fact that there
               has been a reduction in the amount of nutrients
               between that amount entering the reservoir to that
               amount leaving.

       Percent increase as used here indicates that the amount of
               nutrients leaving the reservoir was greater than the
               amount entering.
**     Weighted Annual  Average - is computed by taking the mean over
               the whole sampling period,  June '73 - May '74,  and not
               by taking the mean of the three separate periods.
                              39

-------
                        TABLE 8



AMERICAN FALLS RESERVOIR SOURCES OF TOTAL PHOSPHORUS



            AND PERCENT OF INCOMING FLOW
June-September

Snake River
Portneuf
Ground Water
TOTAL
S.E. Springs
N.E. Springs
Total Phosphorus
33%
27%
40%
100%
33%
7%
Flow
65%
6%
29%
100%
10%
19%
October-January
Total Phosphorus
15%
40%
45%
100%
40%
5%
Flow
72%
7%
21%
100%
7%
14%
February- May
Total Phosphorus
51%
17%
32%
100%
25%
7%
Weighted Annual Average
Flow
79%
6%
15%
100%
5%
10%
Total Phosphorus
37%
26%
37%
100%
31%
6%
Flow
74%
6%
20%
100%
7%
13%

-------
pi ing period, June '73 - May '74, it contributed only 37% of
the phosphorus entering the reservoir during the same period  (See
Table 8).  The combined contribution of the Portneuf River and the
groundwater coming from the south eastern, Pocatello area of  the
reservoir was 57% of the total  phosphorus with only 13% of the
total flow.  The period of greatest contribution from these two
sources was October through January,,  During this period they each
contributed 40 percent of all the phosphorus and when combined, only
14 percent of the total flow.  It is unusual for groundwater  to
be as high in phosphorus as was found at station 10.  The spring
also had high ammonia levels but only traces of organic nitrogen.
It seems likely that the ground water in this area is being contam-
inated from the Food & Manufacturing Corporation (F.M.C.) and the
J.R. Simplot phosphate reduction and fertilizer plants which  are
located just one half mile from the Rowland's Dairy spring.  The
phosphorus may come from either plant, the ammonia comes from the
J.R. Simplot plant where natural gas and steam are used to form
ammonia.
       It can be seen from Table 8 that the Snake River's greatest
contribution of phosphorus was during the high flow months of Feb-.
uary through May and that its smallest percent contribution was during
the flow months of October through January.
                              41

-------
    American Falls Reservoir acts as an even larger sink for
nitrate-nitrogen (See Figure 6).  By the end of the sampling
period there was a reduction of 6,703,491 pounds of nitrate-
nitrogen within the reservoir.  It appears that over half of
this nitrate-nitrogen was changed into organic nitrogen compounds
associated with biological activity.  This explains the weighted
annual average percent increase of 56 percent of organic nitro-
gen.  The periods of greatest biological activity were during
the months of March, May, July, and August.  By comparing the
monthly ammonia mass balance graph, Figure 7 with the ornenic nitro-
gen graph, Figure 8, it can be seen that when the amount of
organic nitrogen decreases significantly, i.e. during September
and April, the amount of ammonia increases significantly,,  The
use of the two graphs together can help one follow the cycling of
these two nutrients by biological activity within the reservoir.
    Most of the nitrate-nitrogen entering the reservoir comes
from the groundwater which contributed a weighted annual average
of 64 percent while contributing only 20 percent of the total
incoming flow.    (See Table 9)
  Although the  Portneuf River  contributed only 15 percent of the
  weighted annual mean as compared to the Snake's 21 percent,  it
  contributes only 6 percent of the total flow while the Snake
  River contributes 74 percent.
                              42

-------
CO
MAV   JUN
                                             AUO  SEP   OCT   NOV   DEC   JAN   F^EQ   MAR   AT=R  MAV  JUN




                                           MONTH     
                                   Figure 7. Monthly  nitrate  loading in  pounds at American Falls  Reservoir

-------
MAY  JUN  JLJL.  AUQ  SEP  OCT  NOV  1DED  JAN  FEB  MAR  APR
                                                                                           OUN
MONTH
                                   
-------
     O
     N
     T
     H
     o
     R
     O
01
                                 1	1	1	h
-\	1	1	\-
\	1
                               OTJN  JT-ft-   ALJO   SEP1   OCT  NOV  DEC   JAN   F~ES   MAR  APR   MAV   JUN


                                           I-lONTH       
                                Figure  9.  Monthly organic nitrogen loading in pounds  at American Falls
                                                                 Reservoir

-------
                                TABLE 9



        AMERICAN FALLS RESERVOIR SOURCES OF NITRATE AND PERCENT



                      OF INCOMING FLOW



June-September          October-January         February-May          Weighted Annual Average

Snake River
Portneuf River
Ground Water
TOTAL
S.E. Springs
N.E. Springs
Nitrate
9%
13%
78%
100%
31%
47%
Flow
65%
6%
29%
100%
10%
19%
Nitrate
15%
19%
64%
100%
29%
35%
Flow
72%
7%
21%
100%
7%
14%
Nitrate
33%
13%
54%
100%
28%
26%
Flow
79%
6%
15%
100%
5%
10%
Nitrate
21%
15%
64%
100%
29%
35%
Flow
74%
6%
20%
100%
7%
13%

-------
                    MINIDOKA
     Lake Walcott, which is formed by Minidoka Dam, stretches
for approximately twenty-four miles and has an active storage
of 95,000 acre-feet.  The level of Lake Walcott is kept fairly
constant as the lake is not exclusively used for irrigation and
power but is also a wildlife refuge.  The discharge from Amer-
ican Falls Reservoir (Station 8) was used to determine the amount
of incoming nutrients; and the discharge below Minidoka Dam
(Station 7) to determine the amount of nutrients leaving Lake
Walcott.  The distance between the two sampling stations is
41 miles with an elevation drop of only 200 feet or a gradient
of 4.9 feet per mile.  Between the American Falls and Minidoka
Dam there are no significant point sources of pollution.
     Lake Walcott is a buffering system for the discharge from
American Falls Reservoir.  It reduced the relatively large
amounts of total phosphorus and ammonia-nitrogen coming from
American Falls Reservoir during the irrigation season by 76
and 496 percent respectively.  It reduced the large amount of
nitrate-nitrogen released by American Falls Reservoir by 176
percent when it turned over in September.   The Lake also
reduced the amount of organic nitrogen that was discharged in
August by 145 percent.  When the levels of phosphorus and
nitrogen discharged from the American Falls Dam are signifi-
cantly reduced during the October-January period, Lake Halcott
acts as a flow-through system.  During this time the difference
between the amount of phosphorus and nitroaen entering Lake
                             47

-------
Walcott and the amount leaving is negligible except for
nitrate-nitrogen.  The difference between organic nitrogen
contents of the influent and effluent waters during this period
isn't very large either.   It is interesting to note that both
nitrate-nitrogen and ammonia-nitrogen are reduced significantly
within Lake Walcott.  Aimionia-nitrogen is usually either oxi-
dized to form nitrate-nitrogen or utilized as a source of energy
for biological activity and changed to organic-nitrogen.  Nitrate-
nitrogen is generally reduced by either dentrification to ammonia
or elemental nitrogen or utilization as a source of energy for bio-
logical activity which converts it to organic nitrogen compounds.
Since the increase of organic nitrogen compounds over the sampling
period is only six percent, one is led to believe that a large
percentage of the 29 percent of total nitrogen reduced is changed
to elemental nitrogen.  During the sampling period as a whole the
difference between the amounts of phosphorus and organic nitrogen
entering and leaving Lake Walcott is small.  The weighted annual
average percentage reduction of phosphorus was 17 percent and the
percentage increase of organic nitrogen was just six percent with
a total nitrogen reduction of 29 percent.
                              48

-------
                                                   TABLE 10
                                           MINIDOKA (LAKE HALCOTT)
                                          r

PERCENT REDUCTION
                         Total Phosphorus
June-September                76%
October-January               -6%
February-May                 -12%
Weighted Annual
Average                       17%                 29%             59%           161%                        6%
UTRIENT CONTENT

Total Nitrogen
87%
13%
3%
CHANGES

Nitrate
172%
6%
34%


Ammonia
496%
-4%
84%

PERCENT INCREASE
ORGANIC NITROGEN
-40%
-20%
22%

-------
                     MILNER REACH



    Milner Reach, as used in this report, extends along the



Snake River from Milner to Minidoka Darn, a distance of 37 miles.



From spillway to spillway there is an elevation difference of



only 61 feet.  This gives a gradient of 1.65 feet per mile.  Along



this reach four municipalities - Rupert, Burley, Heyburn, Paul  and



five industries - Ore-Ida, J.R. Simplot, Amalgamated Sugar, A&P



Food, Bryant's Meat Packing Company, discharge into the Snake.  The



Paul sewage treatment plant and Amalgamated Sugar discharge only  to



the Main Drain an industrial-agricultural wasteway, while the



city of Rupert's STP has an overflow discharge into the Main Drain.



The Main Drain then discharges into Milner Lake.  A&P Foods and Ore-



Ida Foods have a variable discharge throughout the year and Amal-



gamated Sugar operates only in the fall and winter.



    The discharge from Minidoka Dam (Station 7) and the Main



Drain  (Station 6) were used to compute the incoming loads and  the



discharge from Milner Lake (Station 5) was used to compute the



outgoing loads.  During the irrigation season the flow through



Milner Dam was so slight, representative samples from the irri-



gation canals and the flow through the canals were used to



compute the outgoing loads.  The flow through the Main Drain was



estimated at 16 cubic feet per second and considered constant



throughout the year.  It should be pointed out that no computations



were made for the month of January because the Main Drain was  frozen.



    The Milner Reach was the only reservoir studied that showed



increases of both phosphorus and nitrogen between the two sampling
                               50

-------
points.  The.percentage increase of total phosphorus was
fairly constant throughout the year varying only from 38
to 44 percent with a weighted annual average percentage in-
crease of 39 percent.  The highest percentage increase for
both phosphorus and nitrogen occured during the months of
October through January.  It is interesting to note that
Amalgamated Sugar was operating only during those months.
Amalgamated Sugar discharges into the Main Drain whose per-
centage contribution to the Milner Reach total phosphorus
content increased from 0.6% to 5.4% during this same time
span.  Concurrent with the cessation of the autumn refining
campaign, the percent increase of phosphorus declined to
38 percent and the percent contribution to the Milner Reach of
total phosphorus by the Main Drain dropped to 0.6 percent.
     The data gathered on coliform bacteria, total and fecal,
from the Main Drain also correlates with the Amalgamated Sugar
processing period.  Fecal coliform counts went from less than
ten per milliliter (ml.) in September to 8,000 per ml. in
October and up to too many to count (TKTC) by December.
Total coliform counts acted in much the same way.  They
went from less than ten per ml. in September to greater
than 80,000 per ml. in October.  By the end of February the
fecal coliforms had dropped to 300 per ml. and the total
coliform to 3,800 per ml. (See Table 17).
                              51

-------
en
r\j
                                                            TABLE  11


                                           FECAL COLIFORM COUNTS AT VARIOUS STATIONS
DATE
5/16/73
6/6/73
6/21/73
7/3/73
7/19/73
8/1/73
9/11/73
9/24/73
10/18/73
10/29/73
11/15/73
12/3/73
12/20/73
1/7/74
1/24/74
2/4/74
2/28/74
3/11/74
4/11/74
5/10/74
Snake @ Til den
140
420
400
800
130
150
600

250
30
290
260
10K
150
260

10K
240
40
10K
Blackfoot River
800
20
140
210
620
620
170

200
200
10K
110
10K
100
10K

10K
80
10K
10K
Portneuf River
17,000
10K
300
520
2,200
1,600
180
1,400
10K

90
10K
10K
TOOK
10

10K
80
20
90
Milner
10K

30
10K
10K
10K

140
1,400
800
600
5,000
100K
7,200
7,200

50
80
240
550
Main Drain

10K
10K
300
650


10K
10K
8,000
4,500
10K
TMTC



300
440
20
10K

-------
     The nitrogen levels in the Milner Reach increased more
dramatically than did the phosphorus levels during the months
of October through January.  They ranged from a 27 percent in-
crease to a 47 percent increase in total nitrogen.  (See Table 12),
Although the contribution of nitrate-nitrogen from the Main Drain
decreased during these months, its percentage contributions of
both ammonia-nitrogen and organic nitrogen increased.   It should
be remembered that the loadings from the Main Drain were used
to compute part of the incoming loads of Milner Reach.  Therefore,
the increases of phosphorus and nitrogen come from other sources
along the Milner Reach.  Phosphorus is the only nutrient that
has a significant increase for the sampling period since the
weighted annual percent increase for total nitrogen was only
nine percent, too low to be considered significant.
                              53

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  TABLE 12



MILNER REACH
NUTRIENT CONTENT CHANGES
PERCENT INCREASE

June-September
October-January
February- May
Weighted Annual
en .
p=> Average
PERCENT CONTRIBUTION

June-September
October- Januaryo
February-May

Total Phosphorus
41%
44%
38%

39%
OF MAIN DRAIN
Total Phosphorus
0.6%
5.4%
0.6%

Total Nitrogen
27%
44%
-4%

9%

Nitrate Total
2.6%
1.4% 1
2.6%

Nitrate
.38%
72%
24%

39%

Kjeldahl
0.4%
1.7%
0.7%

Total Kjeldahl Organi
27%
62%
-47%

9%

Organic Nitrogen
0.4%
8.9%
0.5%

c Nitrogen
29%
62%
-7%

8%

Ammonia
1.9%
24.0%
3.2%

Ammonia
-4%
65%
27%

30%

Flow
0.2%
0.6%
0.1%

-------
                    Brownlee Reservoir

    Brown!ee Reservoir varies from the other reservoirs stud-
ied because there is a decrease in total phosphorus but an in-
crease in the amount of total nitrogen within the reservoir
(See Table 13).  The sampling stations used to compute the
loadings for the mass balance were the Snake River at Weiser
(Station 2)  and below Brownlee Dam (Station 1).  Brownlee
Reservoir stretches from Brownlee Dam to just below Neiser.  At
the Weiser station a composite sample from the left side, center
and right side of the river was made.  This gave a more represen-
tative sample than just a single grab from one part of the river.
There is a problem with determining the flows from Brownlee Dam
whenever water moves over the spillway.  Poor spillway calibration
explains the findings which data reviews reveal:  more water
always leaves Brownlee Reservoir than enters it.  Whenever water
spilled over the dam much more water was recorded leaving the
dam than was actually leaving.  Ne could not discern the exact
magnitude of the error, but from comparison of the flows at
Weiser and Brownlee in Table 5, it appears to be 35%.
    Although this means the mass balances are somewhat in-
accurate, they still show general trends.  The flow error would
affect mainly the amount of unbalance in the February through May
period.  Therefore, with more accurate flow figures, there
would be a greater percent reduction of phosphorus and a smaller
                               55

-------
percent Increase in all  of the nitrogen values.




     Overall Brownlee Dam acts as a small sink for phosphorus




and a sizeable source for nitrogen even though there are no




point sources of any significance between Weiser and Brownlee.




The periods of most significance are the irrigation season




and the month of October.  During this time total  nitroqen  and




phosphorus are greatly reduced while ammonia-nitrogen is qreatly




increased.  It appears that during the month of October a larne




amount of nitrogen is fixed from the air, probably by blue-green




algae.  It is during this time that the phytoplankton chloronhyl]-a_




concentration goes from 20.1  ug/1 to 77-5 un/1.  A chloronyl1-a




level of approximately 20 uo/1 is considered an alqai bloom.




This large amount of biological  activity during the irrigation




season helps to account  for the large reduction of phosphorus




for this time and the increase in organic nitrogen overall.

-------
                                                         TABLE 13


                                                   BROWNLEE  RESERVOIR
   PERCENT INCREASE




   June-September


   October-January


   February-May

01
^  Weighted  Annual


   Average


   PERCENT REDUCTION




   June-September


   October-January


   February-May


   Weighted  Annual


   Average
NUTRIENT CONTENT CHANGES
Total Nitrogen Nitrate Total Kjeldahl
-40% 9% -58%
81% 145% 26%
101% 115% 92%
53% 106% 19%
Total Phosphorus

Organic Nitrogen Ammonia
-62% 305%
15% 298%
84% 220%
11% 256%

130%


  7%


 -2%




 16%

-------
in
CD
           p
           H
           Y
           o
                        1	
                                                       SrS^3   COT  NOV
                                                                                    f\f' 5
                             Figure 10.  Phytoplankton chlorophyll  at  Brownlee  Reservoir

-------
     This study of the waters in the upper Snake basin has
provided information about the formerly mysterious reservoirs:
American Falls, Minidoka, Milner Reach and Brownlee in the
area.  Much has been learned about the source and fate of
nitrogen and phosphorus in the basin and profiles of dissolved
oxygen, pesticides and bacterial concentrations in these waters
have been drawn.  The monitoring system used in this study,
one of large magnitude, has proved effective in monitoring
the water quality of this basin.  Furthermore, this survey
has led to recommendations about the quality of the data ob-
tained at each station.  On the basis of this information,
a plan for long term monitoring of water quality in the basin
has been formulated and is recommended.  The data in this report
will also form a standard for comparison when more research
is done on nutrient loading in the upper Snake River basin.
Thus, in general, the objectives of this study have been met.
                             59

-------
APPENDIX A
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APPENDIX B
         113

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         Receiving water qiinlity outside  the mixing zone will be maintained
         ot water quality standards contained herein, 'or existing water
       .  quality levels, whichever is higher.

    D.   In the application of the use classification, the most stringent
         criterion of a multiple criteria shall apply.
                                                                             

    E.   Sample collection, preservation and analytical procedures to
         determine compliance with these standards shall conform to the
     j    procedures prescribed by the latest edition of Standard Methods
     '    For The Examination Of_ Water And V.'astcwater, and other superseding
         methods published by the Department following consultation with
         adjacent states, and the concurrence of the Environmental Protection
         Agency.

vl.  WATER USE CLASSIFICATION

         The designated use(s) for which the waters of the State are to be
    protected shall include, but not necessarily limited to domestic and
    Industrial water supply, irrigation and stock watering, recreation
    and/or aesthetic qualities.  (See appendix,  USES TO BE PROTECTED.)
    Recreational waters are further divided into two classes:   (1)  primary
    contact, and (2) secondary contact.   Primary contact recreational waters
    (Class A) are for uses where the human body  may come in direct  contact
    with the raw watt  to the point of complete  submergence.   The raw water
    nay be accidently ingested and certain sensitive organs such as eyes,
    .ears, nose., etc. nay be exposed to .the water.   These waters may be used
    for swimming, water skiing, skin diving, support and propagation of
    fish, aquatic and semi-aquatic life,  and other forms of wildlife.

         Primary contact recreational waters are further divided into  sub-classes
    AI  and A2   Class AI is restricted to lakes  and impoundments in which  ex-
    ceptionally high water quality exists.  Waters of  al?. lakes and impound-
    ments shall be class AI unless otherwise excepted.   In the instances where
    a flowing stream is  classified and subsequently becomes an impoundment,
    that impoundment shall carry the same classification as the flowing stream.
    Class A includes the remainder of the primary contact recreational waters.

         Secondary contact recreational waters  (Class  B)  are for uses  in which
    the raw water supply is  suitable for  support and propagation of fish and
    other aquatic and semi-aquatic life,  and other fores  of wildlife.   These
    waters  r.ay  be used for boating,  wading and other activities where  inges-
    tion of the raw  water is not  probable.

         Waters  classified  as  excepted (Class E) are waters in which,  due  to
    natural and/or man-made cause,  the quality is  not  compatible with
    recreational  uses.   These waters  are  protected for  the use(s) specified.
    The  numerical value  of  the va> '.ous parameters  for  specific Water Quality
    Standards contained  herein  under  Section VIII  shall  apply  to all Class  E
    waters  unless an  alternate value  for  a  given parameter is  specified in
    Section  IX for the waters under consideration.
                                            114

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         Natural tributaries  to  the  stream  readier, arc classified as primary
     recreational waters, Class A, unless otherwise r.peciflcd.  Waterways
    Defined as a point source in Section 502(14), -Public Law 92-500, arc a
          of conveyance for waters with no  use classification.  Canals and
          nan-nade waterways excluded as a  point source arc protected for
     agricultural uses and aesthetic -qualities and may be protected for other
i     uses when specified.

'         In the instance vhcre a flowing stream is classified and subsequently
!     fcecorces an impoundment, that Impoundment shall carry the same classifica-
j     tin as t*ie flowing stream.   The criteria established for, the various
\     use-classifications may be modified by  the Administrator for limited
I     periods when receiving waters fall below, their assigned water quality
     standards due to natural causes or if,  in the opinion of the Administrator,
     the protection of the overall interest  and-welfare of the public requires
     guch a modification.

.tj.  GENERAL WATER QUALITY STANDARDS FOR WATERS OF THE STATE

         The following general water quality standards will apply to waters
     of the State, boih surface and underground, in addition to  the water
     quality standards set forth  for specifically classified waters.   Waters
     of the State shall not contain:

    A.   Toxic chemicals of other than natural origin in concentrations
         found to be of public health significance or to adversely affect
         the .use for which .the waters have .been classified*

    B.   Deleterious substancer of other than natural origin in concentrations
         that cause tainting of edible species of fish or tastes and odors
         to be impartrV to drinking water supplies.

   . C.   Radioactive materials or radioactivity other than of natural origin
         which
                             9-
         1.    Exceed 1/3 of the values listed in Column 2,  Table II,
              Appendix A,  Idaho Radiation Control Regulations as adopted"
              by the Board on May 9,  1973.

         2.    Exceed the  concentrations  specified in the 1962 U. 'S.  Public
              Health Service  Drinking Water Standards for waters used for
              domestic supplies.              '
' Guides  such  as  the Water  Duality Criteria published by  the  State  of California
'ltr Duality  Control  Board (Second Edition, 1963)  and core recent  research
f KTS will be used in evaluating the tolerances of the various  toxic chemicals
*-* the use indicated.              ,                                             .
                                              '115

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        3.   llavc a dcmonstrnblc effect on aquatic life.  

             The concentration of radioactive materials'in these waters
        shall be less than those required to meet the Radiation Protection
        Guides for mnxinum exposure of critical hunan organs recommended
        by the former Federal Radiation Council in the case  of foodstuffs
        harvested fron these waters for human consumption..

   P.   Floating or submerged matter not attributable to natural causes.
                                                     
   E.   Excess nutrients of other than natural origin that pause visible
        slime growths or other nuisance aquatic growths.

   p.   Visible concentrations of oil, sludge deposits,  scum,  foam or
        other material that may adversely affect the  use indicated.

   C.   Objectionable turbidity which can be traced to a man-made source.

jji.SPECIFIC WATER QUALITY STA1JDARDS

        No wastewaters shall be discharged.and/or no  activity  shall be  conducted
   in waters of the State which either alone or in combination with other waste-
   vaters or activities will cause in waters of any specified  reach, lake or
   impoundment, or in general surface waters of the State

   A.   The organism concentrations of the coliforra group
        a
        1.   In waters of lakes and impoundments  (Aj), except  the  following,
             which are classified as A  waters:'
            American Falls Reservoir
            Lake Walcott
            Milner Lake
            Hurt, ugh Lake
            Crane Falls Reservoir
            C. J. Strike Reservoir
            Lake Lowell
            Brownlee Reservoir
            Oxbow Reservoir
            Hells Canyon Reservoir
R.M. 738.0 to R.H. 714.0

R.M. 675.0 to R.M. 640.0
R.M. 690.0 to R.M. 675.0

R.M. 514.0 to R.M..492.0

R.M. 338.0 to R.M. 285.0
R.M. 285.0 to R.M. 273.0
R.M. 273.0 to R.M. 247.0
                                            r
                 Total colifom concentrations where associated with a
                 fecal source (s) to exceed a geometric mean of 50/100 ml.,
                 nor shall r.ore than 20 percent of total samples during
                 any 30-day period exceed 200/100 ml. (as determined.by
                 multiple-tube fermentation or membrane filter procedures
                 and based on not less than 5 samples for any 30-day
                 period).
                                              116

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          b.   Fecal cbl i f orn "concentrations to exceed a geometric neon
               of 10/100 nl., nor shnll more thnn 10 -percent of total
               samples during any 30-day period exceed 20/100 ml,;
               or greater than 50/100 nl. for any single sample.-

               Colifom  criteria  for shoreline waters' shall conform with
          that of Class M waters.  Shoreline water waters shall be
          defined as the 100 feet of water surface as measured from the
          shoreline.
     2.   In waters protected for primary contact recreation

          a.   Total col if OTTO concentrations where associated with a
               fecal source (s) to exceed a geometric mean of 240/100 ml.,
               nor shal_ more than 20 percent of total samples during
               any 30-day period exceed 1000/100 nl. (as determined by
               multiple-tube fermentation or membrane filter procedures
               and based on not less than 5 samples for any 30-day period).

          *>   Fecal col iform concentrations to exceed a geometric mean
               of 50/100 ml., nor shall more than 10 percent of total
               samples during any 30-day period exceed 200/100 ml.; or
               greater than 500/100 ml. for any single sample.

    "3.   In waters protected for secondary contact recreation (B)
    j-               *                                                 
     * " -a.  "Total coliforrs concentrations where associated with a fecal
               Bource(s) to exceed a geometric mean of 1000/100 ml.,  nor
               shall more than 20 percent of total samples during any
               30-day period exceed 2400/100 ail. (as determined by multiple-
               tube fermentation or membrane filter procedures and based
               on not less than 5 samples for any 30-day period).

          b.   Fecal col iform concentrations to exceed a -geometric mean
               of 200/100 -ml., nor shall core than 10 percent of total
               samples during any 30-day period exceed 400/100 ml.; or
               greater than 800/100 ml. for any single sample.

B.   Dissolved Oxygen
                                         r
          The DO concentration to be less than 6 mg/1 or 90 percent of
     saturation,  whichever is greater.

     1.   The DO standard shall apply to all flowing waterways.

     2.   The DO  standard shall  apply to the waters  of all natural
         lakes and  reset  oirs except as excluded below:
                              i
         a.    In depths  of  water less  than  100 feet in natural  lakes
               or reservoirs,  the bottom 20  percent  of  water depth shall
                                            117

-------
               be excluded from application of the  DO  standard.   In
               vatcr depths crnatcr than 100 feet,  the bottom  20  feet
               of'water depth shall be excluded .for application'of the
               DO standard.

          b.   Waters below a thermocllne in stratified lakes'or  impound-
               ments shall be excluded fron application of  the DO standard.

          c.   No wastewaters shall be discharged and/or,no activity shall
               be conducted in waters excluded by a. and b. above, which
               either alone or in combination with  other wastewaters or
               activities will cause the DO concentration -in these waters
               to be less than A  mg/1.

     3.   Notwithstanding exclusion of a.  and b. above, the DO standard
          shall always apply to the top two feet of any lake or reservoir.

C.   Hydrogen Ion Concentration (pK)

          The pH values to be outside the  range of 6.5 to 9.0.  The induced
     variations shall not be more than 0.5 pH units.

D.   Temperature

     1.   Any measurable increase when water  temperatures are 66F or
         'above, or-more than 2F increase other than 'from natural
          causes when water temperatures are  64F ot less (unless
          otherwise  specified).

     2.   Any increase exceeding  0.5F due to  any single source, or 2F
          due to all sources  combined.

               For purposes  of  determining compliance, a "measurable
          Increase"  means'no  more than Q.5F  rise in temperature of the
          receiving  water  as  measured immediately outside of an estab-
          lished mixing  zone.   Where  mixing zone boundaries have not been
          defined, cognizance will  be given to  the opportunity for admix-
         "ture of wastewater with the receiving water.
                                         r
     3.   Any measurable increase when water  tenperatures are 68F or
         above,  or more than 2F  increase  other than from natural causes
         when the water temperatures  are  66F or less in the following
         waters:

         a.   The main stem of the Snake  River fron the  Oregon-Idaho
              border  (R.M. 407)  to the interstate line at Lewiston,
              Idaho  (R.M. 139)

         b.   The Spokane River from Coeur d'Alene.Lake  outlet to the
              Idaho-Washington border.
                                               118

-------
              c.   1: c Pnlousc River from Princeton to the Idaho-Washington
                   border.

              d.   The Pcnd.Orcille River from the Tend Orc'ille Lake outlet
                   to the-Idaho-Washington border.

    E.    Turbidity .

              The turbidity other than of natural origin to  exceed  5 Jackson  .
         Turbidity Units (JTU).   Whenever the receiving wator  is greater  than
         5 JTU,  due to conditions other than those caused  by man, then no
         discharge and/or activity either alone or in combination with other
         wastewater or activity shall cause an increase of more than 5 JTU.

    y.    Total Dissolved Gas

              The total concentration of dissolved gas  shall not exceed 110
         percent of saturation at atmospheric pressure  at  the point  of sample
         collection due to  non-natural causes.   (In compliance  with  this
         standard Paragraph C,  Section III,.General requirements shall apply.)

:r.  SPECIFIC  WATER QUALITY STANDARDS  FOR CLASS E WATELS

    Specific  water quality  standards  contained  herein under Section VIII shall
    apply to  all Class E waters  except as enumerated in  this Section.

    A.   -No-wastewater shall-be  discharged-and/or no activity shall be conducted
         vhich either  alone or in combination with otbar wastewaters will cause
         the  organism  concentration of the coliform group in waters of the
         South Fork Coeur d'Alene River,  Mullan to Enaville, or Paradise Creek,
         upper reaches to State  line.

         1,    The total  coniform concentrations where associated with a fecal
              source(s)  to  exceed a geometric mean of 240/100 ml., nor shall
              more than 20  percent of  total  samples  during any 30-day period
              exceed 1000/100 ml.  (as  determined  by  multiple-tube fermentation
              or membrane filter procedures  and based on not less than 5  samples
              for any  30-day period);  or  greater  than 2400/100 ml. for any
              single sample.
                                            r
        2.   The fecal coliform concentrations to exceed a geometric mean
             of 50/100 ml., nor shall more than 10 percent of total samples
             during any 30-day period exceed 200/100 xl.; or greater than
             500/100 ml. for any single sample.

   B.   No vastcwaters shall be discharged and/or no Ectivity shall be conducted
        vhich either alone or in combination with other wastewaters will cause
        the DO concentration to je less than 75 percent of saturation i.i waters
        of Paradise Creek, upper reaches to the State line.
                                              119

-------
APPENDIX C
         120

-------
ST'lUFT
IIPPFR SNAKF
                 I. OATF .7S/OP/1 B
                                                                                1533*1
                                                                              44  OiS 4f).0 11)
                                                                              HFNrtYS FOK AH
                                                                              1*.        IDAHO
                                                                              fAC.tr 1C.  MUWTHWEST
                                                                              IIPPF* SNAKF HIVES
                                                                              1 119C050
                                                                              7
                                                                                               ?A 57.0
                                                                                               ASHTflN HESrKVUl-l
                                                                                                     OOOf!  McT-w
FpOM
rn
73/0*1/19
73/07/05
73/07/17
73/OH/01
73/OB/21
73/OH/22
73/0/23
73/OP/M
7pn i
noon PPOI
noon iivoi
nnno i s^o\
onon i 9pn ]
WATFS
CFMT
17.7
70.5
17.7
i g.n
1 ft . 4
1 5.7
1 ft . 3
15. H
1 7. 1

4. H
1 .4
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n.n
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59
53
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54
48

60
59



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1 OK
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170
ftO
40
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100
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130
73
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10
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1
ftn
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                                                                                                                                     CFS
                                                                                                                                        2HOO

                                                                                                                                       ?800
to

-------
Srn-jFT Wf-Tu 1 i=w/M.  ilATF  75/04/1U
                                                                            44  ll>, 40. O 111  ?ft S? .0
                                                                            HF'MHVS FIHK flH  4SHIDN KESEKVUIK
                                                                            If,        IDAHO
                                                                            PACIFIC  NUXTHWEST
                                                                            IIPPPH SNiAKF RIVFR RASlN
                                                                            1 1 l"*Cn5n               7111 ?n4
                                                                            ?                       oonn  METFW  OF^TH

OATP T 1 M
FPOM HF
Tri HAY
73/06/19 14
73/07/05 'HI
73/n7/ 17 10
73/fm/oi ?n
7^/OH /7 1 1O
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7 * / o M / 7 '<
73/O9/13
7 3 / 1 n / 1 6
73/10/^1
73/11/13
73/17/05 '
73/17/lH
74/01/7?
74/07/07
74/n?/?6 '
i n
1 4
1 7
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1 o
1 7
1 7
1 4
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74/03/14 04
74/04/in O4
74/O5/n 1 3

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no
45
30
1 5
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45
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70
10
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30

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onnn
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noon
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                                        197?
                                        1
37?]H 37773
PHFOPHTN CHLMfHYL
A A *1f;/M?
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0.71
7.53
3.99
1 .6H
7.15
4 .H7

9 .64






5.7?
OO6O5 OO675
nsr, N TOT K.IEI.
N N
MI; /i. MG/I.
fl.3?o o.3?o
0.470 0.470
0.1-50 0:i50
0.170 0.170
0.36 O
0 . 3 H 0
0 . 7 3 O
0.730





0.060
0. 700
0.730
O.060
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0.10
0. 730
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0.770
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0 . O R 0
0.77.0
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O.OIOK
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O.OIOK
o . o\ OK
O. O) O
O.OIOK
o.oi OK
o . 01 OK
0.01 0
O. O60
O.OIOK
O . (i 1 0
o.o 10
0.07O
0.030
O.O30
O. 07O
0.040
0.070
OO61S
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TUTAI.
Ml, / 1.
O.OO 1
0.00?
O.Oni

0.001
o .001
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0.070
0.070
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O.O40
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0.070
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0.140
0. 1 60
0. 1 20
0.040
0.140
0.090

-------
                        HATF
OATF
FROM
 TO
TIMF  DFPTH
 np
RAY   MFTFK
73/07/OS
7^/07/17
73/OK/01
73/OH/21
73/OR/2?
73/09/1^
73/10/lft
73/11/13
73/17./OS
7^/12/lH
74/01/7?
74/O2/07
7i/02/?ft
74/n^/l/
74/04/10
14
'14
1 0
70
1 0
14
1 0
14
1 7
10
1 o
1 ?
1 7
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14
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r>4
1 3
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45
30
1 5
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4S
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4S
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10
70
1 n
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3n
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1 =
30
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oooo
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noon
nooo

noon
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                               1. Art
                             774O1
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onft3o onftfts
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M-THTAI.
MI; /i. MI; /i. P
0.0? 0.030
O.O3 O.O7O
0.0? 0.030
o.o? o.n^o
0.040
0. M4O
n.o^o
o.o?' o.n?n
0.07O
O. O3O
0.07 O
n . o 7 o
o , o i o
O.070
O.O7O
O. O4O
0. n?o
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o.oftn




.



O0ft7 1
pMns-ni S
nTH(i
wr, / 1. P




0.010
0.010
0 . 0 1 0

O.Ol OK
0.010
0.01 OK
O.Ol OK
O.Ol 0
0 . O 1 0
O.Ol OK
n.oio
0.010
o ..o i o
0.010
I'i33ftl
44 Oft 40.0 111 ?ft S7.O
HFNRYS FliHK Art ASHTON HESPMVMIrt
1ft IDAHO
PACIFIC MIJKTHWEST
IIPPFR SMAKF I\/FR HASIN
I 1 10f,050 71 1 1704
7 0000 MF.TrP IIP
OOft'flO OOhftO 0)00? 010^1
T HRT, C OKTHMP04 ftSEN!C LEAD
C P04 AS, TOT PR.TllT
MP,/I. MG/I ur,/L iy;/i_
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CADMIUM MEKCUKY
r.D.TllT Hli.TMTAI.
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3 1.1
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13 0.4
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4 0.1
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1 1.-3
ro

-------
ST'uFT
UPPER
         RFT->|Fv//u_  DATF  7S/O4/IH
   naTF
   FPC1M
    T'l

7 1/0*. / ) ^
7 1 / O 7 / ' ) i*
M/07 / I 7
M / o n / o 1
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7 1 / 1 n / --11
71/11/U
71/17/oS
7 VI ?./ I"
7^/01/10
           T I MF
             OF
                   F T FH
1 ?
1 A
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1 H
1 0
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1 1
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-------
                            7=i/nu/m
                                                                                  153355
                                                                                 43  59  15.0  111 39  05.0
                                                                                 HF.NRYS F'1K  AHI1VF  ST  A-MHflNY
DA.TF
FuriM
in
71/0*,/19
73/O7/n4
71/07/17
7i/na/oi
71/OH/21
73/OP/22
73/OH/21
71/09/11
73/09/2A
7i/io/i<>
73/10/11
73/11/11
73/12/05
73/17/1H
74/m/in
74/ni/?7
7^/02/OA
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74/03/13
7A/04/10
74/os/nn
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T1MP I1FPTH I.AH
rip i ncM|.
nAY MFTFR NIIIMHFW ]
12 30 nnoo 75002
1 >S 1O OOOO ?7
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1 n no nnnn 11 qn? 
in in nnno i*..PFrt SN&KR
1 1 19C050 71 1 1204
? OOOO METFe I)? PT>
nnOM 37211 -3221H 32773 00(S05 00675 On/s)n
STKFAM r.HI.UMHYI. PHFHPHTN f.HI.H^HYI. f)Wr, N TOT K.lEl._ NH'-t-N
FlHW. ft UK /I. A A MT,/M? M M ' TIITAI.
w^T-r.F1; r.nuwFr.To ur,/i. cnFr.ro MK/I. Mr;/i, wr;/i.
74^0 1.79 0.770 O.770 O.O10K
imn n.9i 0.440 0.450 o.oio
11
-------
                  I.  DATF 7S/00/1H
                                                                            1S11SS
  FROM
    T'l

71/06/ )g
71/07/n/.
71/07/17
71/OR/01
7 1 / O H / 7 1
71/01/7?
71/OH/21
71/OP/11
71/04/?6
71/10/16
71/10/11
71/1 1/11
71/12/OS
           T IMF
             riF
           DAY
 7^/OS/OH
1 7
1 S
OP
1 K
1 0
1 1
1 0
1 7
1 O
1 S
1 2
12
1 ^
1 S
1 7
1 7
1 g
1 1
1 H
OH
1 1
10
10
IS
nn
1 n
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?s
IS
in
nn
1 S
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10
10
no
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10
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0.060






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ns-m s
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n . 01 OK
o. 01 n
o.oio

0.01 OK
O .111 OK
O. O] OK
O . (M OK
o. 01 OK
0.010
0.010
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0.01 OK
0.01 OK
O. 01 O
O.01 OK
0.010
'.I S9 1 S .n ill 19 OS .0
HFMWYS FORK ArtOVF ST AMThMNlV
PACIFIC NORTHWEST
HPPFR SNAKF
1 1 iqf.OSO 71 1 1704
? OOOO METER OF.I
O06HO 00660 01OO? 01OS1
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C POA AS, TOT PR, TUT
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0.01 4 IS
0.0 IK 6
it
4














J|H
01O77 714(10
CAIJMIIM hEKCIIKY
CD. TUT H
-------
UPPFB SWAKF
nATF
FROM
Tn
7^/OAYlQ
73/07/OS
73/07/17
73/OR/01
73/0/21
73/08/??.
73 /OR / 23
7 "^ /OQ / \ ^
7^/no/^A
73/lo/is
7^/10/31
7^/11/13
73/l?/rs
73/12/1*
74/01/10
74/01/2?
74/02/OA
74/03/14
74/04/10
74/OS/0
TIMF nFPTH
np
DAY
14
OH
Ofl
in
10
12
10
1 3
1 1
IS
1 1
1 1
1 3
1 A
14
1 1
1 K
OR
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1 2

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SO
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4S
4S
3S
10
40
1 s
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4S
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30
4S
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30
4S

FTFP
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3 4 g o 3

4 4 <) O 3


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1 1 ^n^
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                                  OO01 O
                                  f.FMT
                                    11.7
                                    70.0
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                                    74.^
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                                    IS. 4
                                    17.7
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-------
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-------
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n.nni
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o . on 4
n ,nii4
o . on 7
006?0
NU3-N
TOTAL
0.170
0.130
 n.)6o

0.170
O.OHO
0. 10O
0.190
0.700
o.?f>n.
0.370
O.3OO
0.7HO
n.?20
0.710
0.270
0.110

-------
                    1ATF
  IIPPFW
    1ATF
    FOHM
      Tn

  71/0ft/l4
  71/17/1S
  71/07/ 1ft
  71/1R/11
  71/OR/21
  71/1H/77
  71/1H/71
  71/1P/H
T1MF
 np
1AY
  71/1 I/ 11
  74/01/11
  74/11/2?
1 S

1 1
1 4
1 7
1 1
no
  71/11/lft  I
            10
            1 1
            04
   11 1111
   in iinn
   nn inn
   11 1111
   4S 1111
   71 nnn
   1s ooon
   41 innn
   4S 1111
   11 mi
14 4S 1111
is 11 1111
   is 1111
   4S 1111
   11 inn
   11 1111
   11 iinn
   11 0111
i ft
11
IS 71 1101
            IP
                  1110
                  0000
              OlOOfl
              I AM
             IDFNT.
7741'->



14 H 7 1
1'. g i 5
Nn?.r. rj.-ii
M-THTAI
  wr,/i.

     1. 1
     0.1
     1. 7
     0.1
                                       i.r
                           i u o n A
                            041*.
               1
               1 SQ nft
               1 441ft
                                                                        1S11S4
                                                                       41  AQ  4?.n ill Sft 11.0
                                                                       HPMRYS FORK AT
                                                                       i*,       IDAHO
                                                                       PACIFIC MOHTHWF.ST
                                                                             SNAKF


11AAS .
OS-TUT

r, / 1. P
i.n^i
i . f ifr i
1 . n s i
1.071
1 . 1S1
i . ift i
1.111
o.nio
i . n s o
o.oio
O . 1 4 1
1.1^1
1.010
1.041
0.140
O . 1 4 1
0. 1 40
o.oio
1 . 4 K 1

1 . 1 H 1
) 11P-C050
7
11ft71 llftfll OOftftO
pHiis-ms T ORT, c nRTHnP04
ORTHO C PI14
Mr, /i. P w,r, /L Mr, /i.
0.01
0.03
o.-o?
1.14
1.110
0.110 7.0
1 . O 1 1
0.02
0.110
n . n i o
1.01 1
1. 11 IK
1.111
1.171
1.171
1.171
1.070
1.010
o.oflo
1.010
O.OIO
71 1 1704
(1000 rtETF.H HF.H
0100? ninsi
ARSF.NIC LEAD
AS, TOT MR. TOT
ur,/u uii/i.


1 h
q



4
7 4S
ft
4
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0.7
3
7

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4
2
4 ] 7
4

TH
01 (17 ?
C A Dill Urf
CD. TUT
1 1C, / 1.


1
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1
1. 7
1 K
1 4
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1
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MEkCOH Y
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0.4



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O.H
0.5
O.S
n.H
O.I
1.4
1.1
O.h
O.ft
0.1
0:5
0.6
0.9
CO
CD

-------
 "JFTH IF.VAI.
SMAKF
                    OATF  7S/O9/1R
                                                                         1533ftO
                                                                        43  39  00.0 111  41  00.0
                                                                        SMAKF  RTVF" NEAR  HFISE
                                                                        1ft       IDAHO
                                                                        PACIFIC NORTHWEST
                                                                        UPPER  SNAKF
                                                                        1 1 1<*C050              21 1 1204
                                                                        7                     0000 METER  DEPTH
DATF
FRflM
TH
73/Oft/l9
73/07/OS
73/07/17
73/OR/02
73/OR/21
73/OR/22
73/OR/23
73/09/13
73/10/17
73/10/31
73/ii/i3
73/12/oft
73/12/ls
74/01/22
74/02/Oft
74/02/2*.
74/03/14
74/04/10
74/05/OR
TIMF nFPTH
OF
HAY M=TFR
1 7
1
1^
in
1 R
IS
14
T.
OH
IS
1*>
1 n
2o
10
1 2
17
1 2
12
Ofi
4S
10
00
4S
10
40
IS
ss
oo
ss
4S
4S
oo
^0
^0
20
IS
^0
30
oooo
oooo
oooo
oooo
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oooo

oooo
oono
oooo
oooo
oooo
oooo
oooo
oono
oooo
oooo
oooo
ooooa 0001 o
1. A K ig A T F R
IHFMT. TFMP
MIIMUPP
2SV07
2707
24407
^1907 '
^4H22
^iR7R
^*4ql q
^74O7
424O7
44qO7
4*i407
44407
S \ 4 0 7
4907
*i4O7
9407
) 1407
1 S407
1M4O7
CF^T
11.?
10.1
14.7
14.1
'l*. ^
17.1
17.4
1ft. 4'
4.9
H.S
ft. 3
? .R
1 .7
O.l
O.S
3.0
1 .H
2.9
ft. 1
003OO
nd
MR/I.
12. H
9 .1
9 .S
R .4
R.3 
9 .O
H.M
10. ft
a.s
\ 1 .R
1 2.0
) 3. ft
11.7
1 1 .S
11 .H
1 2.S
11.3
u.s
13.1
00400 00094 00410 3150) 31Mf> 00077 00060
PH CNDIICTVY T ALK TDT CHI. I PEG CM LI TKANSP STREAM
FIFI.n CAC03 MFIMFNDO MFM-Ff.HX ScCCHl HLUW
Sll MTCROMHO
9 .00
7 .40
R.OO
7.40
fc. 1 0
R .00
7.RO
R.50
R. 10
R.30
fl.30
7.70
R.OO
7. HO
R.OO



fl.OO
4OO
390
410
3ftO
345
340
330
400
4SS
510
SSO
57S
S7S
SftO
5RO
550
470
470
530
MR/1. /100MI. /l.OOWL INCHES CFS
129
15S
1-15
lift
121
1 Ifl
lift
132
14R
171
Ift5
119

112
135



131
50
1 10
1 ftO

24O
150
)OK
20
16O
10K
10K
10K

10K
40
O
1 OK
10K
10K
10K
10K
10K

10K 959(
10 91hi
]OK 3<
0
10K
10K
1 OK
"I OK

10K

O
1OK
10K
1OK
CO
CD

-------
     STMJf-T
                                                                                      1 Sll/SO
                                                                                    6i  ig  oo.o  in  4i  oo.o
                                                                                    SMAKF  MM/FW  NFAW  HF I SE
                                                                                    !,        IIIAHH
                                                                                    PACIFIC MOWTMUiFST
                                                                                    IIUIJFH  SNAKF
                                                                                    111QC050                71
                                                                                                                  1704
                                                                                                             OOOO  METFW |)FPTH
O ft T F
PUflM
ro
7i/n7/ns
71/07/17
71/no/o?
M/OH/71
71/04/77
71/riH //l
71/0i)/ 1 1
fi/in/17
717 1 0/11
71/11/11
71/1 7/0*,
71/ I?/ Iw
76/0 1 /??
74/n?/n^
74./n7/?*>
74/O1/ 16
76/O6/ln
76/05 /0
TIMF ItFPTH
nF
OA Y MF TFu(
17 6s onnn
1 H in nnnn
1 1
in
1 *
1 =,
16
!*
n"
1 s
i *<
10
/?o
in
1 ?
1 7
1 ?
1 7
n
nn
/ s
10
6O
1 5
S5
00
S5
45
6=i
on
in
in
70
15
10
in
noon
nnnn
nnnn
nnnn
noon

nnnn
nnnn
nnnn
nnnn
nnnn
noon
nnnn
nnr.n
nnnn
oooo
nooo
I.Art STWFAu r.HI KPHYI. PHFOPHTN CHI.KPHYI. nR N TOT KjEl.
IOFM.T. F|(IW. A IIP, /I. 4 A yiG/M? N N
VIIWPPW 1NST-OFS CnwrtECTO lir,/|. CO^RFCTfl MG/|.  MG/L
'^tnl IMHOH l.fl? 0.370 0.4OO
77w07 l?M7n 7.10 0.2OO 0.710
7'v<-to7 11540
1 1407 17710
1 ' M 7 7
1 '. H / M
 6 ') i g
17007
674O7 7O5O 1 6. OO
46g07 1644
4*,mn7 )454
6MVO7 117O ^.50
51ony 1 7 4 H
4^07
*>gn7 114O
J407 116f)
1 1 4 O 7 41^7
1 5gn? 6.9*i
)gon7 M600
1 .91 0.
1 .74 0.



0.17 0 .

0.1 3
0.01


0.
0.
0.
0 . 04 0 .
0.
O.M 0.
740
?50



390





070
150
170
010K
150
?10
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
750
770
1 hn
1 70
730
400
150
750
330
110
550
OflO
1 hO
140
010K
170
750
ori8 i n
NH-i-N
TIITAI.
MI; /i.
0.0 HO
o .01 o
o.oio
0 . 0 7 O
o. o i OK
O.Ol 0
0. O 1 O
0.01 O
o.oio
n. o i OK
o. 070
0.01 f)
o. o?n
o.ni o
0.010
0.070
0 . 0 1 0 K
0.070
0.040
fldh 1 T
Nl l?-\
1 1 IT Al.
Cfi/L


o. nn i
0.00?
0 .on 7

o .nn l
o .001
0 . OO 1
o .OOH
0 . on 4
0.00?
O. OO4
0.007
0.00?
0.001
0 . 00 3
\II3-N
IHTAI.


O.OiSO
0.070
0.07O

0.010
0.0-50
0. 1 50
O. OhO
O. 1 hO
0.130
0. I'jO
O . IbO
0.700
0. IhO
n.170
j:.-.

-------
STO^FT  BFTRIFVM. DATF
      SMAKF
  OATF
  FOO"
   rn
TlMF
 fiF

HAY
73/ln/17
       !
          17
73/n7/ns
73/n7/17
   i n
   nn
7 3 / n H / ? i
73/no/??
             in
1 S
1 4
1 *
nn
i s
11
in
2n
in
i ?
17
1?
1 ?
OH
     MFTFR

     >  nonn
       nnnn
       nnnn
       nnnn
       nonn
       nnon
       nnnn

       nnnn
       onnn
       n.inn
       nnnn
       nnnn
       nonn
       onnn
       nnnn
       nnnn
       nnnn
       nnnn
              I.AH
             InP^lT.
             MilMrtFu
?7 IDAHO
PACIFIC MIIWTHUFST
UPPFR SNAKF
1 1 JQCOIf) ?] 1 1 ?O4
? 0000 MFTrK |)FP
oo^sn oohsn oinn? oio-^i
ORT, c nTHi)vn4 AUSENIC LF.AH
C PDA AS, TOT MB. TOT
wr,/i. MR/I. iifi/i. ,i'f-./i.
O.Ol
0.01
O.Ol ' 
O.d? 5

ft.O

0.01 3
0.01K 5
?
4
1
1

3
?
',
3 10
4






TH
nin?7 71SOO
CADwlUii MECUKY
CU.TliT Hi;. TOTAL
i ;/i_ UI./L


? 0.4
S 0.4



4 0.3
4 0.3
7 n.7
1 4 0.9
i n.?
7 13.?
ft n.q
S 3. ft
4 n.i
^ 0.1
IK O.S
"> -1 .A

-------
                              7c./'i. . 5
S. 7
1 .7
7. 1
0.1
0. 7
0.1
1. 1
S.7
*.. 4
OO10O
no
MO /I
q
>,
H
7
7
7
7
7
H
10
10
1 7
1 1
1 7
11
1 1
10
10
1 1
. <=,
. ?
.0
.ft
. 
.7
. 7
.1
. 7
.S
.7
.ft .
.H
.7
.7
.
.S
.7
.7
004OO 00094 00410 31SO1 1 1 M *. OOO/7 OOOhO
PH CMOHCTVY T ALK TOT cciui ^EC r.ni.i IWA'MSP STHEAM
PJPin CAC03 MFlMFNlKl MFM-l-r.HK SFCCHl H.llml
MI Mir.KriMHi) MG/I -/IOIIML /IOOMI. IXCHFS r.fs
7
h
H
7
H
7
7
H
7
R
R
7
7
7
8



7
.Ml
. on
. 10
.5n
.00
.ftO
. HO
. 3o
.SO
.00
.1.0
.90
.70
,9n
.00



.90
17H
14 O
4OO
IRfl
330
11 0
ISO
1ft 0
?s
7sn
7SO
170
iso
400
440
400
3 HO
400
S10
1 Oft
1 ftS
130
117
170
1 l
1 1 4
1 7?
108
101
94
1 10

ins
1 14



125
90
?OO

in
HO
in
1 10
n
ftn
1 OK
770
10K
40
10K

1
30
10K
1 OK
Ml
HO
10
1 O
10K 71S
10K 70O
ftfl 714
1 0
1 OK
1 OK
20
1 OK
inK
1 OK

n
10
1 OK
1 OK
DO

-------
                  U_  OATF
IIPPFR Sk'AKF
                                                                              A3  43 71.0  11? O5  03.
                                                                                     4IVF  7  MI  F OF
DATF TI"F r
FUflM OF
TO OVW H
73/0*,/]4 OH OS
73/07/OS 1*, 3S
73/O7/1*. 14 00
73/OR/01 13 OO
73/OH/71 1*, 3n
73/OR/73 13 10
73/OQ/l^ OH
73/10/1*. 11
73/10/31 . 17
73/11/13 17
73/12/0*. 1 1
73/12/1" 1 ?
74/01/77 1*.
74/n2/n*. is
74/n?/2*> in
74/n3/13 1 3
74/O4/OQ 1R
7A/OS/OR 17
3O
on
?o
AO
AS
AS
so
is
on
30
30
3O
' 1*. IDAHO,
PACIFIC NIJHTHWF.ST
1 1 1PC050 771 1 1704
7 OOOO MrTFR DEPTH
OOOOH OOO*O 37711 3771 H 37773 OOhOS OOA75 f)OM O
IPPfH 1. AM ^iMpAi' CWI.HPhYl, PHR1PHTN CHI.WPHYI. D^C, N 1 DT K J E 1. . NH3-\
!nP^T. Fin>i. A IIG/I A A MG/M? W N THTAI
IFTFH Mm. MFI* ]NST-f'.F^ r.OHHFr.Tn IIR/I. CHWRFP.TO MG/I MG/I. |-'f'/l.
onnn 7-4OR 197OO 7.17 0.710 O.710 O.OlfiK
OOOO 774OR O.1O O.1*,O 0.17O O.01O
OOOO p^ltinft 1O4OI) O.74 O.400 0.41O O.O1II
Ooon 314nq 1O7OO 1.30 O.30O O.31O O.Old
OOOO 7A1H 0.-090 0.010
OOOO ^AH77 o.?*.O fi.nlOK
onno ^A^IH 0.300 O.OIOK
3740ft 34nn
nn A7Mon Anoo
nnno r^/.'-.nn 3*JOR 5*. HO
onnn i 1 4OR *,34A
oooo l sgnR
noon i
-------
nn*.in
                                      41  41 21.0  11? (IS  (13. fl
                                      SMAK / | <->
71 /n7/nci
71/07/1*,
71/on /n i
71/OH/71
71/OR/22
71/nn /2l
71/OQ/ 11
71/10/1*,
71/IO/1 1
71/11/11
71/12/n*.
71/12/1B
74/O 1/22
74/O2/0*,
74/02/2*-
74/01/11
74/HA/OQ
74/ni/OR
T | MP DP PTH 1 A A Kir
fiF I riP" T. M-
nw ns nnnn p'^^nR
1 *,
1 0
1 i
1 *>
]4
1 1
np
1 1
17
1 7
1 1
1 2
1 *>
1 S
in
1 1
1 ^
1 7
IS
nn
nn
in
25
i n
in
nn
2(1
4n
4S
4S
in
1 s
nn
in
in
30
onf'O 77'^nq
onoo 7^4nR
nnno ^ i uns
nnnn >& i H
nnnn ^u.w77
nnnn i4u i H
^7onn
nnnn /. 7 w f > M
nnon 44c,rn
nnnn 4*^^nw
nnnn /.^-./im
nnnn s i UOH
nnoo 4urm
nonn *,4n
nnnn n^nA
nnnn i i unn
nnnn ] S'ini
oooo iMgnR
-TOTAI
wr, /l_ MG/I. P
n. l (, .nsn
n . 1 n
n. i n
n.i n
n
n
n
n. i n
n
n
n
n
n
n
0
n
n
n
0
. o^n
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. nin
. n^n
. n?n
. nin
,n*.n
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.020
. O4O
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.1 ?n
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'NOS-OI S
ORTHO
Mr, /|_ F



n
o
n

n
n
n
0
n
n
o
n
o
0
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.01 OK
.0] OK
. Ol OK

.01 n
.070
.oin
.010
.070
.070
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.01 OK
.070
.010
.010
                                      8.0
                                                             0000 METFR  |)t
                         01002      oinsi
T O.RC,  C   f3HTHIIpn,4   AKSENIC    LEAD
   C          P(14      AS,TOT     PR,TOT
                        . ur,/L       IK;/i.
                                                 0.07
                                                 o.oi
                                                 0.0]
                                                 0.02
  01077
CAiiMl"*i
CU.TUT
  71900
MEKCUKY
HG.TUT AL
  uf;/L
                                                 0.0]
                                                 0.01

-------
UFTHIFVM. OATP
                                                                  4? 'n  is. (i  i Ti  47 *<). r>
                                                                  I.K MII.NFO AT  HUKI.FY  HrtY ?7
                                                                         C NHWTHWFST
                                                                         SMAKF HIVF
l) ipcnsn
nonna
TIMF DFPTH I.AK
OF I OF^'T.
nAY MFJFk MIMHFJ
1 n on
in on
nnnin nn^no
W 'A T F R HO
TFMP
CFNT MT,/I.
1 .IS
1 .5
nn^nn ofinQA
PH CNDUCTVY
F I F 1 0
<;u MICROMHO
K.10

no4i o
T ALK
CACU3
MR /i.


711 1?0?
Onnd METr.B l)t
31501
TOT cm. i
MFIMENUn
/100MI.

'
'< 1 M *
^EC CHI. I
Mf-M-Hr.H't
/.tnnwL


                                                                                                            onn77       oooho

                                                                                                                        ( 1.1 iw
                                                                                          10K

-------
 STriRFT "FTMIFVAI. DATF  7S/n>-//lH
                                                                                     1
                                                                                   4?  33  15.0  in 47 30.0
                                                                                   |_<  MILMFP  AT  HIJHI.FY  HWY  ?7
                                                                                   1A         IDAHO
                                                                                   PACIFIC  MIJHTHWFST
   n A T F     T I M F  ri F P T H
   F4HM      (\f
    TO      HAY   MFTFR

74/04/00  IS  3O

nnnrio ooft^o
1 AH MO? F, Mf)1
ncMj. N_Tr1T,
||MHCp Mft/l.

1 1 is
?
flO^ftS OO(S71 OOAHO
PHOS-THT PUnS-nlS T DRR C
ORTHO C
Mr, /i. P Mr, /i p Mr; /i.
o . no o
ir.oso ?m?n?
OOOO METCR IjfPTH
OO/MSO
0THnP04
P04

0100?
ARSFMIC
AS.TC1T
ur,/L

01 Obi
LEAD
PH.TIIT

0 1 0 ? 7
CADMIUM
CD. TOT

7 IS 00
MEKCUKV
H(,. TOTAL


-------
                  . r>ATP
IIUPB0
                                                                         M it/> 04 .0  11?  I
                                                                         wr, TUCKP"  SMM IN(;
                                                                         1*       IDAHO
                                                                         I'ACIPIC
ruTi-
PIIHM
TO
vi/n*,/m
7i/n?/o<.
71/07/1*.
7i/nH/ni
yi/nvj/ 1 ?
7 1 / 1 n / f /
ri/l 1/ni
71/11/1.'
71/1?/H
7'. /nl /r\<-i
7 /. / n l / ? ?
7/./n^/n*,
7^/n^/^s
7*,/ni/ 11
74 /nAvno
7
MM
1 1
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1 1
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in
in
in
in
in
In
in
1 rt
1 S
in
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nn
nn
in
nnnnM nnn ) n
IFPTH 1 AM WATf-w
IMt^'T. TFMP
Pfhu MIIMUCD r>MT
nnnn
nnnn
nnnn
nnnn

nnnn
nnnn
nnnn
inn
nnnn
nnno
nnnn
nnnn
nnnn
nnnn
nonn
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,"'4 in
i i 4 1 n '
i M in
'. ? w i n
'. /. LI i n
'<'n n
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400 ^?ft *
750 734
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775 750
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-------
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                                                                               4^  O? 04. O II?  1*7  ?0.0
                                                                               MT.  THCKFK  SHRjNr,
                                                                               Ti        IDAHO
                                                                               IIPPFR SNAKF RIVFR  RAS1N
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ll/UF
FORM
rn
7VOA/1*
7^/07/0*.
7^/07/1 *
73/OB/01
7^/o/ l 2
7^/10/lV
7^/11 /Ol
73 /ll /I?
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74/01 /o
74/01/22
7^/0?./0*
74/02/2S
74/03/ 1^
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TIM
OF
rAY
70
04
1 7
1 1
71
1 1
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10
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1 3
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30
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-------
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   71/07/1^

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71/11/12


74/01 177.
   74/04/OQ
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-------
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                                                                        11 iQ-r.o'jn            ??i i
                                                                        ?                    nnno  METER DFPTH
rUTF
ForiM
TO
71/07/04
71/07/lft
71/OB/01
71/00/1?
71/10/17
71/11 AM
71/11/1?
71/12/OS
71/17/1*
74/01 /OR
74 /O 1 /?1
74/07/Oft
74/O?/?S
74/01/11
74/O4/09
74/ns/no
74/n<>/i9
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rip
HAY MFTFk
1 7 is ooon
n
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10
10
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oonn
nnoo
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nnnn
nnoo
oonn
noon
ooon
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nnnnx nnoio
1. AH WATFU
1 OFM T. TFMP
MIIMHCU CFMT
?S01 1 1 1 .S
770 1
704 1
*! 91
1701
4 ?4 1
44 41
4ft<-O
4441
1 1
11
1 ?
1 1
1 1
10
4
g
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nn4no 00094 00410 31501 iiMft
PH CNOIICTVY T ALK TDT c.m.i FF.C r.m.i
FIFI.O CACfll MFIMF.NUn MFM-hr.K
^u MICHOMHH MR/I. /IOOMI. / \nnciL
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7
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7



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490
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1 44 0 0
71 0
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1 B5
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1 Hft
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195

                                                                                                                00077
                                                                                                               INCHED
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STMFAM


 CFS
G
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-------
 STD9FT PFTRIFVM,
 IIPPFB  SNAKF
OATF  YS/04/1H
                                                                          6?  no oo.o  ii? on  no.n
                                                                          Si'RJNC, CRFFK  AT RHriNtn ROAD
                                                                          1*       IDAHO
                                                                          PACIFIC NHRTHWFST
                                                                          IJPUFR SNAKF  RIVER  HASIN
                                                                          1 1 lor.0<50              7?1 11 ?04
                                                                          ?                      (Kino
FROM
TO
71/0*/1R
71/07/04
71/07/1*.
71/OS/Ol
71/09/1?
71/10/17
71/11/01
71/11/12
71/12/OS
71/12/1"
74/01/0*
74/01/?!
74/07./0*,
74/o?/?s
74/01/11
74/04/09
74/05/04
74/O<,/lQ
OOOOR
T IMF I1FPTH 1 AH
OF jncMf.
n/\Y MHTFR MIIMHFW
17
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is
04
14
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1 1
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17
1 1
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14
nn
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10
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10
10
10
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10
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7S41
7741
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4441
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STRFAM r.HIHPHY'l. P-HFOPHTN CHI.RPHYL ORP N TOT K.lEI.
FI.I1W. A IIR/I. A fl MR/M? N N
IMST-CFS r.nRRFcin IIR/I. r.nRRFCTo wr,/i. Mf./L
1
1
1
1 
1
1
1
1
1
1
1
1
1
1
1
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0
0
0
o
0





0
o
0
0
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0
0

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. 140
.140
. 100K

-



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.070
.ISO
. 170
.01 OK
.?20
.120

0.350
O.O5OK
O1. 140
0. 140
0. 10OK
0.750
0. 170
o.iqo
O.ORO
0.430
0.010
0.030
0. 170
0. 140
O.01 OK
O. 74O
0.140
0.110
OOMO
TDTAI.
0.01 OK
O.O10K
O.O1 OK
O.OJOK
O.OIOK
O.O10
O.OIOK
O . 0 1 O
O.OIOK
O.010
o.oio
0.010
0.070
0.070
O.O1 OK
0.070
O.070
O.OIO
OOM *S
TllTAI.
wr, /i.





0 . 00 1
0.001
O.O'll
0.001
o.ooi
O.OOI
o.ooi
O.oni
0.001
0.001
0.001
0.001
O.OOI
NM3-M
TOTAL





0.8(10
0.84(1
O.H?0
o.Hbn
O.M(H)
0.7HO
o.Kon
O.HOO
O.H1O
0.780
n.h60
0.78O
0.83O
en

-------
         BFTRIF.VAI.  nTF
  I|PPP
                                                                     u?  on  oo.o ii? no no.o
                                                                     SPRIMR CREFK  AT BRONCO ROAD
                                                                     i/s       iriAHn
                                                                     PACIFIC MOMTHWEST
                                                                            SNAKE RIVER HASIN
                                                                                          0000 METER  DEPTH
OA.TP
FRflM
rn
71/0*/ 1 H
71/07/0*.
71/07/ I i
71/OH/01
71/04/1?
71/10/17
71/11/01
71/11/1?
71/1 ?/OS
71/l?/l
7** /O 1 /OH
74/O1/?!
74/O?/O
-------
  STDRFT  HF.TPTFVAI.  r-lATF  7S/OW/1M
ft? "54 4ft. 0 1 1 7 31 1 H.O
SPHNf, 3 ROWLANDS IJAJBV-POCATF.I.I.M
PACIFIC NOBTHWFST
IIPWPH SNAKF KIVF.R HASFN
1 1 IQCOSO ?1 ) 1 ?04
7 0000 METCH L)FJ>TH
nnnnw oonin
OATF
F3MM
TO
73/Oft/lR
73/07/Oft
73/07/1*
7^/oH/oi
73/04/17
7^/ln/l7
73/11/01
73/11/12
7^/1 2/Oft
73/1? /17
74/01 /ob
74/01 /2l
74/02/0*
7ft/o2/?5
7ft/O3/12
7ft /Oft /O9
74/05/07
T 1 MF
PF
f)AV
IS
07
1 "*
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1H
1 3
13
1ft
1 
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1 1
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1 *
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7.1


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ftS
oo
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1 s
3n
3n
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DFPTH

MFTFR
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onoo

onnn
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i nnnn
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1 AH WATFW
1 n F * T . T F M
P
N'UMUF.y CFNT
P'i'J 1 7 1
3.5
774 17 1 7. V
.7441? 1
^1^17 1
17? 1
ft ?M 1 7 1
ftft417 1
ft*>ul 7 1
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-------
     STOPFT BFTBTFVAI. OATF
           SMAKF
                                                                           1S37H7
                                                                          4? 54  4A.fi 11? HI  IH.n
                                                                          SUMH  a  priwl.AMOS rjAlBY-POCATFl.l
                                                                          Ift       IDAHO
                                                                          PACIFIC  M()THUEST
                                                                          IIPPFR  SMAKF  RIVER  RAS1N
                                                                          1 1 19-CnSf)              7111 ?04
                                                                          7                     noon MFTCK
       DdTF
   Tn

73/n*,/iR
73/07/O4
73/07/1*.
73/nn/ni
                        nnnn
          TIMF OFPJH   I AH
           nF          |i>f-.>iT.
          HAY  MFTFR  MIIMHEH
    73/10/17
    73/11/01
    73/11/12
    73/12/17
    74/O4/O9
    74/05/07
15 3n
n7 45
1 3 OO
05 50
1 H OO
l 3 no
13 50
14 45
1 M 50
1 *> OO
11 on

in 15


13 30
21 45
nnoo
nooo
nonn
nonn

onon
onoo
onno
onon
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onnn
nnnn
nnnn
onoo
noon
nnoo
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                                      ST-HFAM   CHI.RPHYI.
                                       FiriU.     A  lin/l.
                                     INST-CFS  CHRRFCTO
                         3791 7

                         449 1 7
                          441 7

                          M *-i 1 ?
                         11917


                             I?
PMFDPHTN CHI KMHYI. DKG N TUT KjEl.
fl A Mf;/M7 N: N
lin/l. CORRFCTO MR/I. Mfi/l.
O.no o.33n
0.070 0.130
0 . 09 0 O .' 1 9 0
0.150 O . 7 7 O
0 . 74O

-



O.OIOK
0.01 OK
O.OIOK
0 . 0 1 OK
O.OIOK
0.320

0 . 3 7 n
0.370
O.050
0.130
0.550
O.9OO
0. 19O
o . 49 n
0.230
0.340
0.500
0.340
O.3AO
1}C)H 1 O
NH 3  N
TII r AI.
n.7?O
n. i no
o.ovi
O .OHO
O . 7 7 O
0.750
0.070
0.450
n. 34n
o. IPO
o.Srin
0.7V)
o.Hho
O.5OO
0.500
O.45O
OOM 5
NU2-N
TUT AI.

O.004
0.005
O.Ooh
0.007
0.017
0.004
O.071
o . oox.
o.oio
0.011
o.oon
0.010
MI3-M
TOTAL

2. 10(1
2.300
2.6OO
2.hOO
2.40O
2.150
3.000
l.hOO
?.ftl)0
3.200
2.HOO
3.400
cn

-------
                                                                            4? S4
                                                                                        11?  ;-n




HAT^ T [ Mlf RFPTH
F^HVI
Tn
71/Oft/lM
71/O7/04
71/07/1'.
73/OM /Ol
71/OM/l ?
73/10/17
71/11/01
73/11/12
71/1 ?/O4
71/12/17
74/O1 /On
74/O 1 //I
7/. /O?/Oft
74/0?/?S
74/01/12
74/O4/O4
74/OS/OV
OF


HAY MFTFR
1 S
07
1 1
OS
i 
1 1
1 1
14
i 
i ft
1 1
i ft
10
1 S
1 H
1 1
?i
30
4S
OO
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OO
00
so
4S
so
OO
DO
10
1 S
10
in
10
4S
oooo
oooo
oooo
oooo

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onoo
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ooon
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onoo
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I MI iMa?r,MH
inPi*'.T. M-THTAI
MIIMHCW Mf, /I
?S^1? 7. ft
77^ 1 7 1 .ft
74^1 7 1.1
1 Iwl 7 1.1
^7^17 -1.7
4?y 1 2
46^1 1 ?
4ftWl 7
6U4 1 ?
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                                                                                               l)AIY-P(jr.ATFLLl
                                                              00^71
                                                 M(;/l  P

                                                    O.HSO
                                                    O.770
MT,/|.  p
                                                    O. 7OO
                                                    0.170
                                                    O . S4O
                                                    O. SftO
                                                    o. s ft n
                                                    o. HOO
                                                    O.ft 1 O
                                                    0 . 14O
                                                    O.H7O.
                                                    O . 4 H 0
                                                    0. 700
                                                    1 .070
                                                    O.HIO
                                                    O.I
  O.S4O
  O.SftO
  0.5SO
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  O.34O
  1 . HOO
  o.ftoo
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  1 .OftO
  O. HOO
  O.700
H^UFH s">'AKF HIVFW HASIN
1 1 1'ICOSO
7
OOftHO OOftftO
T nr, r. nTHritJfi4
r, PD4
MR/I. MG/I
0.73
o.2S
0.34
O.?0
0.37
0.-53











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ooon MF.TFK UH^
oion? otoii
AHSFNIC LEAH
AS. rrn kn.Tn'1
. IIR/I. in; /i.





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ft
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4
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5
ft
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5

TH
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CAunMli". MEKCuaV
r.U.Tin HlT.TIJlAI.
IK; /i. IIU/L





3 O.h
ft n.v
ftft 1.5
"" 0.5
1 ft 1.4
17 1 .h
44.O l.S
14 1 .4
1 ft.?
4 O. 1
IK (1.4
? 0.9
CJ1

-------
u I I-VAI  (IATI-
                                                              1S1157
                                                             4? 4A  OA.O  11?  57 4?.o
                                                             SNAKF  n  HFI.MW  AMF.R IT.AM  FAILS I>MI
                                                             IK       IOAHII
                                                             PAf.lFIC  NflHTHWFST
                                                                    SM/1KF.
                                                                                     ?n i ?OA
                                                                                   onnn  UF.T = W

I1ATP
P4IIM
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71/OS/PO
71/07/01
71/07/17

71/O7/11

71/OM /??
71/nu/X.*,
71/ftn/?7
71/OQ/l 7

71/04/75
71/ln/17
71/in/in

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-------
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-------
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-------
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                                                                                        n.^on
                                                                                         .3 in
                                                                                                   n.?'>n
                                                               n.i7n
                                                                                                             n.nfw
                                                                                                                        O.hOO
                                                                                                              0.01?
CO
C'J

-------
n
                                                                             h*t M| | .i|-1/  AT If
                                                                                                )'/ 7V OO
                                                                            IIVPfH
                                                                            i r
                                                                                                   OOfiO
   TO
          fiAV
y 1 /1 o / 7 M
74/in/X'j
yn/lo/K,  ix in

71/1't/ii
71/J)/oi
71/17/0'.  IX to

71/1X/A.7
     //in
     7/11
     ?/) x
     7/1'.
     //]*
     7 / 1 '-,
     7/1 /
     7/10  12 10
                    f "
                                                  mi

                                                 Ml,/f
                                                              I'M

                                                              Ml
                                                                        OOO'M

                                                                      HFI I;
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I A I."
CAC01
i n (  r,oi, i
MUMFWMO
                                                                                                                       IHHttf
71/1
y < /1
y/l
71/1
M/1
71/1
/*/!
r-/i
y ' /1;
/1 /1 x / x i
                                                     M.X       7. in
     rni, i
HK1--f, MM
                                                                                                               XOO
                                                                                                                                  OOOAO
                                         1.1
                                                    11./
                                                               .Vi
                                                                            S'.O
                                                                                                 73OOO
                                                                                                                            7*
                                                                                                                            77
                                                                                                                            7*.
/'./]///'>
T'./\ 7 / x rr
/ 4 / O  / O >,
y/.
      /i 7
                            x'l'<
                                                                                                              7710
                                                                                                                            77
                                                                                                                            X f
                                                                                                                            7S
                                                                                                                            7
-------
                OATF  75/on/in
Uttse* sr AKF







OOOOK
n/UF TTMF I1FPTH I.A^
^jriM MF inc^'T.
rn DAY MFTFR NII-HFU
71/t ?/?
71/17/74
71/12/V1
71/12/11
74/01/01
74/01/07
74/0] /01
7& /O 1 /O4
74/01 / n 5
74/ni/o*
TU /O1/O7
74/Ol/OH 12 OO OOOO 74 1 rt

74/oino
74/01/1 1
74/01 /I ?
74/01/11
7<./Ol /14
74/ol/lS
7^/01 /I*
74/01/17
74/01/1H
74/ol/lg
74/01/70
74/O1 /7 1
74/01/77
74/ol/?^ 12 in oooo 441 fl
74/O1 /?6
74/Ol/?5
74/01/7*
74/01/27
74/01/7"
74/01/2"
74/01/10.
74/01/11
1 51O(l 1 1 JfiH7Q OO
47 11 ?*.O 114 ()O 4O.O
I AKF MII.NFW AT MH.NER DAM
1* IDAHO
PACIFIC MORTHWF.ST
IJPPFR SMA-KF RIVER HA.<;IN
1 1 14C050 71 1 1707
7 0000 MF.7FK UFPTH
OOO*1 ^771 1 1771 n 17771 OO*O5 00*75 OO* 1 0 O0*l
/;TKFA>I CHI.WPMYI. PHFHPHTN CHI.RPHYI. ORR M TOT K.iEL MHI-N NU2-M
F|(I4, A MR/I. A A ->ir,/M7 N N TDTAI. TMTAI.
IMST_r,PS COWRFCTO HR/L CORRFCin MR/I. .MR/L 'MR/I. NiR/l.
1110
41WO
41 ^0
n i o
?4.10
7^70
^=;no
1110
is on
1100
1 1 '/ 0
^140 0.410 0.510 0.100 0.0
11 4f)
*O4O
^O40
1100
1700
1700
11 40
4740
444O
uut*n
41KO
41*0
4O4O
1140
7*oo O.520 O.*7O 0.1SO O.f
4O*O
14HO
1700
171 O
147O
45 1O
4740
47HO
                                                                                                                 6o*?0
                                                                                                                NH3-N
                                                                                                                TOTAL
                                                                                                                 M(,/L
                                                                                                                   0.74()
                                                                                                                   0.6HO
CO

-------
STD3FT RFTRISVAI.
IIPPFR
                         YS/O9/1H
                                                                        4? 31  26.0 114
                                                                        I.AKF. M1LNER AT
                                                                        16       IDAHO
                                                                        PACIFIC  NORTHWEST
                                                                        IIPPFR  SNAKF RIVFR
                                                                        1 1 19'COSO
                                                                        ?
                                                                                         fin 40.0
                                                                                         MILNER (1AM
                         OOOOH
  HATF    TIMF  DFPTH    I.AR
  FRHM     riF           IOFMT.
   TO     PAY   MFTFR   NIIMHFR
00010
hi AT F B
TFMP
CFNT
00300 .
no

MT,/I_
00400
PH

Stl
00094
CNOIICTVY
FIFI.f)
MlCRdMHO
00410
T AI.K
CAC03
MR /I.
31501
TOT cnui
MFIMFNDn
/IOOMI.
                                                                                            BASIN
                                                                                               2111?02
                                                                                              OOOO  METF.R
                                                                                                    PEC
74/01/23
74/01/26
74/01/29
74/02/01
74/02/02
           ? 30  onon
74/07/04
74/02/05 12 on  nnoo
74/02/06
74/02/OB
74/02/13
74/02/l
74/02/20
74/02/23
                                       0.2
                                                            7.40
                                                                        A20
                                                                                   195
                                                                                            R5000
                                                                                                        770O
                           isqi8
                                       1 .2
                                                 11.3
                                                            R.30
                                                                        ftOO
                                                                                   Ift7
                                                                                             2900
74/O2/27 IS  00 OOOO
74/03/01
74/03/02
74/03/03
74/O3/04
                                       1 .9
                                                                        S<,0
                                                                                             1900
                                                                                                          SO
                                                                                                                 00077
                                                                                                                IRANS''
                                                                                                                SECOHi
?n
20
1H
17
17
17
35
17
1H
17
15
1 7
17
1 7
16
1 7
                                                                                                                      1 7
74/03/07
74/03/OP
74/O3/O4
74/O3/in
74/03/11
74/03/1? 1?  rio OOOO
                          M
-------
        "KTw|HWAI. OATF
       $MAKF
                                                                          i
                                                                         '*? ^i  ?A.O
                                                                         I AKF MI L"JpM
                                                                         i*
                                                                         PACT Fir.
                                                                          p
                                                                          1
                                                                         no 40.0
                                                                         MII.NRW HAM
                                                                            HA SIN
                                                                               ?ni
                                                                              norin
   HATF
   FHHM
    Tn
               flOOOH
T|MF  I1FPTH    | AH

      MFTFR  MIJMHFlf
74/04/?4
74/04/2S
74/04/02
74/04/04
74/04/OS
74/04/OA
74/04/07
74/04/OH
74/04/09
74/04/10
74/04/11
74/04/1?
74/04/n
74/04/14
74/04/1S
74/04/1*!
74/04/17
74/04/lM
74/04/1 
74/04/?0
74/04/?l
74/04/2?
                   OOO1 0
                  WATFM
                   TF.MP
                   CFMT
ooion
 on
Mr,/i.
                                                          OO4DO
                                                            Ml
  00044
r.Moiir.Tvv
FIFI.H
MICR'IMHO
 OO410
T ALK
                                                                                 MR/I.
TOT COL I  . I-EC  CHI. 1
MFIMENDD
 /IOOMI.
 OO077

SFCCHI
                                                                                                                       1 4

                                                                                                                       1 4
OOOO
                       S.7
                                 10.7
                                                        5OO
                                                                            70000
                                                                                          ?40
                                                                                                      1 7
                                                                                                      14
                                                                                                       14
 0006(1
STREAM

 CHS
                                                                                                                                4H06
                                                                                                                                4401
                                                                                                              15617
                                                                                                              1574H
                                                                                                              1 6OHH
                                                                                                              161 OO
                                                                                                              1 4763
                                                                                                              16103
                                                                                                              15740
                                                                                                              )6?00
                                                                                                              1447H
                                                                                                              19740
                                                                                                              14 1 6O

                                                                                                              1 H77H
                                                                                                                               1VHH7
                                                                                                                               701 43
                                                                                                                               14407
  CO

-------
                                                                      153001
                                                                     4? ii ?ft.o  114
                                                                     I.AKF MJI.MFW  AT
                                                                     ift       maun
                                                                          rr,  MOHTHWFST
                                                                           SNAKF
                                                                     1 1 19C050
                                                                             130H79OO
                                                                           OO 40.0
                                                                           MII.MFK DAM
                                                                              HASlNl
                                                                                 71 1 1707
                                                                                0000  WglFH
  OA.TF
  FPHM
   TO

74/04/2>>
74/04/27
74/04/28
74/04/2Q
74/04/1O
74/O5/O1
74/O5/0?
          TIMP
           OF
               RFPTH
              . AH
                                   novin
                                    on
     MFTFR
                                  TFMP
                                  f.FMT
OO4OO
 PH
                                                        sn
  OOOQ4
cwnncivv
FiFi.n
MICKOMHO
 00410
T ALK
CAC03
 MR/I.
  31501
rnr cm. I.
MFIMENDO
 /IOOMI.
  3 1 M ft
t-ec CIILI
                                                                                                            OOO77
                                                                                                 SFCf.Hl
                                                                                                 /IOOM
                                                                                                                 14
                                                                                                                 1 3
74/05/04
74/05/05
74/05/0*
74/O5/O7
74/O5/OS
74/05/oq
74/05/10
74/05/11
74/05/17.
is nn nnon
                                     11.?
                                                -?n
                                                           550
                                                                              74000
                                                                                           550
                                                                                                                1ft
                                                                                                                71
74/OS/1S
74/OS/17
74/DS/lfl
74/ns/ m
74/05/?7
74/05/2H
                                                                                                       1 7

                                                                                                       71
                                                                                                       71

                                                                                                       71
                                                                                                       71
                                                                                                                 71
 OOOhO
STKEAM
                                                                                                                       CFS
                                                                                                                        77350
                                                                                                                          79 H
                                                                                                              ?7H77

17

17

17
17





7?ft4?
??0ft4
777ft4
71hh5
774OO
?OOfi3
1)7HO
19717
1854-J
17454
1^131
1 MfiO5
                                                                                                                        174f>?
                                                                                                              Ift77?
                                                                                                              17169

-------
STMOFT
                  OATF 75/nu/lH
  OATE    TIMF OFPTH
  FROM     OF
   in     PAY   MFTFR

74/02/01
74/02/02
74/02/03
74/02/04
74/02/05  12 no nnno
74/n2/o<>
74/02/07
                      IDFMT.
STFAM
 FLOW .
                                    51 40
                                    sson
                                    5700
74/02/OH
74/02/09
74/02/10
74/02/1 1
74/02/12
74/O2/13
74/02/14
74/02/15
74/02/l*>
74/02/17
74/02/l
74/02/19
74/02/20
74/02/21
74/02/2? ,
74/02/23
74/02/24
74/02/25
74/02/2*.
74/02/27 15 on nnnn 9913
74/02/2*1
74/03/12 12 oo nnnn 1191R
74/04/in 19 45 nnnn I59i
74/O5/07 15 On OOOO 1991R
7740
7110
7190
7?no
71 9O
7?HO
71 in
7 1 4n
7OOO
7?nn
K?7n
R940
H30O
^955
54WO
^030
ft950
77?5
H745
WtH'5
H5O5
O
14750
??709
                                                                    4? ^r 2A.n  114  no 40.n
                                                                    I.AKF MII.NFH  AT  MTl.NER
                                                                    ^*       IDAHH
                                                                    PACIFIC  MOHTHWFST
                                                                    IJP^'E^ SNAKE  RIVER
                                                                    11190050
                                                                    ?                    CiOOO METrR  l)cHTH
CHI.HCHYI.
 A nfi/i.
PHFOPHTM
   A
  IIG/L
CHLRPHYI.
A MG/M7
CORRECT!}
                                             l?. no
DRG N
  N
 MG/L
                                                                             0.480
TOT K.lEL
   N
  MG/L
                                                                                       0.5?0
NH3-N
TOTAL
 MG/L
                                                                                                  0.040
iNI)?-N
TOTAI.
 MG/I.
                                                                                                            0.013
Nli3-M
TOTAL
 MG/L
                                                                   0.99
                                             52. 50
O.ftftO
0.4f>0
0.320
0.770
0.520
0.330
n. 1 1 o
0.030
0.010
0.01 ?'
o . o i n
0.001
0.200
0.140
0.080
0.010K
to

-------
STDRFT  HFTRIFVAI. O'ATF  75/n^/in
MPpep
                                                                       153001            13 OH 79 nO
                                                                     A?  31  ?*.n M4 no 4n.o
                                                                     I.AKB  MII.NEK AT MTI.NE  DAM
                                                                     P4C [FIT, NflHTHWF-ST
                                                                     UPPER  SMAKf IVER  HASIN
OATF
FRHM
TO
73/0^/20
73/07/03
73/07/1H
73/07/31
73/09/J2
73/09/25
73/ln/lR
73/10/30
73/11/14
73/12/04
73/12/19
74/01/OR
74/01/23
74/02/05
74/n2/27
74/n3/12
74/04/10
74/05/07
nnooH
TIMF OFPTH I.AH
HF inFMT.
hiY MFTFR ,Vlt*HFH
13
14
09
15
O9
1 1
1 1
12
14
12
12
12
12
12
12
19
1 S
^)S
15
45
no
IS
nn
3O
?n
in
30
no
3n
no
00
no
45
on
nnnn
nnoo
oooo
onoo
onoo
onno
oonn
nnno
,,oon
nnnn
nnnn
onno
nnnn
onoo
nnoo
onoo
onoo
oonn
?591R
?79t H
?441R
3 1 41 R
344 1 H
4741R
4441 fl
4*,V1H
44Q] fl
S141H
741 H
44 1R
*i4 1 a
1 1 41 R
) 5418
1 941 R
                                N-TDT/U.
                                      o.l
                                      n. i
                                      n.i
                                     0.03
                                      n.4
OOA71
PHDS-MI s
nTHn
MT,/L P
nn/iHo
T OBI; c
C
Mfi/L
nnAfto
ORTHDP04
P04
Mfi/l.
ninn?
ARSFNIC
AS, TOT '
ur,/L
oiobi
LEAD
PK.TIlT
IK; /i.
oin?7
CADMIUM
CU.TIIT
UG/I.
71900
MEi*CUKY
HG, TOTAL
UC./L
0*^5
.S-TDT
/L p
o.nn
O.OHO
n. ion
n.i ?n
n. i sn
n.i4o
0.110
n. ) 40
n. i4o
0. ISO
0. 1 30
0.130
0. 1 SO
0. 1 40
0.070
n.nn
n. i7n
0 . 09 0
00*71
PHDS-MI s
Mr,/LP





0.0^0
o.n?.n
n. 040
O.OAO
o . 09 n
n.070
0.040
O.070
o . n s o
o.ni n
o.o vo
n.ni o
ooinK
n.05
0.04
0.05
0.06
0.07
0..05
0.01
                                                                                             5
                                                                                             4
                                                                                             4
                                                                                                       3s
0.4
0.8
1.4
O.9

-------
STn
-------
STDRFT  RF.TPIEVAI.  OATF 75/O9/1H
                                                                         153003           13177M50
                                                                       43  32 54.0  11* 47 57.0
                                                                       SNAKE RIVER  AT MASSING  IDAHO
                                                                       16       IDAHO
                                                                       PACIFIC MOHTHKFST
                                                                       CENTRAL SNAKE RIVER  BASIN
                                                                       1 1. 19C050               7111 704
                                                                       ?                      0000 ME1F.R  Dr.MTH
r>ATF
FROM
TH
73/06/21
73/07/03
73/n7/19
73/07/31
73/09/11
73/09/24
73/10/m
73/10/29
73/11/15
73/12/03
73/12/70
74/01/07
74/01/24
74/02/04
74/02/?.
74/03/11

74/04/H
74/05/10
TIME nF.PTH
OF
OOOOH
I.AB
IMFNT.
OOO61 37711 3771H 37773
STREAM CHI.RPHYI. PHEDPHTN CHLHPHYI.
FI.MN. A IK; /I. A A Mf, /M?
DAY MFTFR NIIMKFW INST-CFS CORRECTD IIG/I.
OH
09
07
in
17
12
IS
1 3
OH
12
OH
1 2
17
7.1
10
1 1

20
OH
on
?n
3O
1 5
70
on
oo
75
45
IS
1 5
00
3O
oo
30
?j
no
15

oooo
onoo
ooon
onno

oooo
onno
nono
I10O
oooo
oono
nooo
onno
nono
oooo

oooo
oono
nono
75919
7791 9
?94 19
31919
^7919
3'-<4 1 9
47919
4441 9
46419
499 1 9
51919
791 l)
4919
64 1 9
99 19

11919
1591 9
19919
61 HO
54HO 37.65
55HO HO. 70
65OO
7970 35.51
971 0
9R60 106.50
9R60
1 1 30n
1 O9nn
1 1 9no
1 1 100
71 500
71 500
76700

35100


CDRRFCTO
1 .1H


0.64

0.00

1  ft^
n.oo
9.44



3.75




1.67
00605 00675
DRC, N TOT K.IEL.
N N
MG/L
0.530
0.530
0.790
0.730
1.700






0.730
0.350
0.440
0.630

0.590
0.720
0.5HO
MG/L
0.530
0.550
O.ROO
0.750
l'.?3O
0.600
1 .040
0 . 69 0
0.570
0.330
0.790
O.?40
0.36O
0.460
0.670

0.610
0.740
0.600
0061O
MH3-N
TOTAL
MG/I.
0.01 OK
O.O70
n.m o
0.070
0.030
O.Ol OK
0.030
O.Ol f)K
n.oio
O.O70
o . n i o
o.oi o
O.Ol O
O.O70
0.040

o.n?o
0.070
O.O70
0061 5
MJ2-N
TtlTAL
MG/L





0.01 1
n.oo
I).O'>8
n .OOH
0.01 O
0.01?
0.00*
o.on-j
n . oo 7
0.005

O.OH6
0.006
O.O04
O0620
N03-*
TilTAL
MG/L





O.KHO-
* 0.770
0.4HO
1.400
l.*00
1.200
1 -?OO
1.200
O.95l.
O.6MO
0.5f.O
O.560
0.4OO
0.330

-------
STOBFT RHTKIFVAI. DATF  75/O4/1H
                                                                       153003           !317?HbO
                                                                     43  3?  54.0 IT. 47  57.0
                                                                     SMAKE  RIVFR AT MARSINR
                                                                     If.       THANH
                                                                     PACIFIC NnKTHWFST
                                                                     CENTRAL SNAKE KTVER  HASIN
                                                                                           nooo
TO
73/07/03
73/07/iq
73/07/31
73/Oq/l 1
73/Oq/>_6
73/10/1R
73/10/29
73/11/15
73/l?/03
73/12/P.O
74/01/07
74/01/24
74/02/O4
74/07. /2rt
74/03/11
74/04/11
74/05/10
OOOOR OO3o OO^^i5 OOA71 OOfcRO OOf^ftO 010O? OlObl O1O? I 71SOO
TIME r>Fk>TH I.AR Nn?f,Nfl3 PHHS-TflT kHOS-OIS T ORR C ORTHOPr)4 AHSFN1C. LEAD CAUMJUM MEKCUKY
(IF IOFMT. N-TMTAI. ORTHn C P04 AS. TOT PH.TOT C.D.TllT HR,, TOTAL
r>AY MFTFH Ntl'-IHF* MR/I. MR / 1. P MR/I. F MR/I. MR/I. UR/L HO/I. UR/I. UR/I.
OH oo oooo ?^qiq 0.3 0.070 o.Oi
oq
07
1 o
1 7
1 2
1 5
1 3
OR
12
OR
12
17
21
10
21
?o
OH
?0
30
1 5
?0
OO
00
?5
45
1 5
1 5
OO
30
00
30
OO
15
30
oooo ?74 1 q
oooo '?44 i q
OOOO 31^14
*7qiq
OOOO 34414
nooo 4 ?4 i q
nooo 444 1 4
..OOO 4*4iq
OOOO 44414
oooo sioiq
oooo ?4iq
OOOO 4q 1 q
onoo *)4 i q
OOOO 4414
OOOO 1 191 q
oooo i54iq
OOOO 14414
0. h O.
O.5 0.
0.7 0.
l.o o.
0.
0.
0.
o.
0.
0.
(.).
0.
0.
0.
0.
0.
0.
0*0
OftO
07 o
OM1
070
07O
OAO
OAO
OAO
ORO
o /o
OHO
04 O
OHO
1 00
1 ?0
040




o.
0.
o.
0.
().
0.
0.
0.
0-.
0.
0.
0.
ot




0?0
010
010
01 0
040
040
040
05O
o?o
01 OK
Ol'O
010
010K
0.01
0.01 13
0.03 7
0.03 5
0,0? 5
0.01K *
4
1
4
/
7

4
4
1
3
5

?
3
5
?0 0. 5
5
4
?
S?o

?5
3O
*
H
1 7
1 b IK
1 7

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-------
STnqFT PFTBJFVAI. OATF 7S/O9/1
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73/07/1R
73/07/31
73/09/11
73/n9/24
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73/12/03
73/12/20
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74/01/24
74/02/O4
74/07/2P
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-------
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73/09/11
73/09/74
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73/07/07
73/11/15
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74/01/24
74/02/04
74/03V11
74/04/H
74/05/10
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0.01 0
0.770
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-------
                  nATF
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                I.  OATF 7s/os/?n
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FWflM
rn
73/05/15
73/0*>/0*>
73/n^/ 1 4
73/07/OS
73/07/17
73/OH/O1
73/OH/21
73/OH/22
73/OH/23
73/04/13
7 3 / 1 0 / 1 *,
73/ IO/3]
73/11/13
73/12/05
73/1 2/ 1R
74/01/22
74/O2/07
74/02/2*S
74/03/14
74/O4/ 10
74/05/oR


OOOOH 3433O 34340 ^g-}t;o ^43^0 343iS5 39370 34XMO 343SO 3S400
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1 7
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-------
        FTH Ii;v/rti. I1ATF  71/OS/7O
IIPPFfl SM/

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73/OS/1S
73/0>/0,
73/0*,/19
73/07/OS
7^/07/17
73/OR/OV
73/OH/21
73/0^/27.
73/OM/23
73/09/13
73/10/1*,
73/10/31
73/11/13
73/12/OS
73/12/18
74/01/22
74/02/07
74/02/2^
74/03/14
74/04/10
74/os/oa
SKF





TIMF DFPTH
nF
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14
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09
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14
17
10
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1. AM
I DFMT.
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7O4O1
73901
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74401
31401
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HFNHYS FOHK AK ASHTON KESEHVIII*
IS IDAHO
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1 H9C050 2111704
7 0000 I-EFT DEPTH
39410 39420 3978? 3950H 39333 39343 393S1
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WHL SMPI. WHL SMPI. WH|. SMPL 1?M> MUI5 Mill) MHO
IJR/I. UG/L UR/L UR/L UG/Kfi UG/KG . llf;/KG i



0.001K 0.001K 0.001K O.OIOK 0.03K O.70K


-



0.001K 0.001K 0.001K 0.015K 0.03K 0.03K O.70K










                                                                                                                 Uti/KU
                                                                                                                              DOE
                                                                                                                              MUD
                                                                                                                            UG/Kf.
                                                                                                                                0.12
                                                                                                                     O.O3K
                                                                                                                                0.03K
CO
CO

-------
44  (I*, 40.0  11)
HFMRYS  FORK  AR
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73/ns/ i s
73/owo*
73/0*1/1 4
73/07/05
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73/OM/Ol
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73/O8/;?
7 3 /OH/ 7. 3
7*/0<)/13
'73/10/1*1
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73/11/13
73/12/ns
73/U/lH
74/01/22
74/07/H7
74/02/2*1
74/03/14
74/0-4/10
74/06/08


T IMC
f)F
OAY
1 *>
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1 4
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-------
         KF.TKIPv/Ai. riftTF 75/rii/?O
IIPPFK  SNAKF
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                                                                                43  S4  1S.O  111  39 05.0
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73/OR/22
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73/04./13
73/04/2*5
73/lO/l^
73/10/S1
73/1 1/13
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73/12/lH
74/01/10
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O.OOSK O.OOlK O.OOlK 0.003K O.OOlK O.OO?K O.OhOK










-------
     TFVAI.  OATF 7S/ns/?o
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71/OH/22
71/OB/21
71/09/11
71/O9/2*i
71/ in/ 1*1
71/10/11
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71/12/OS
71/l?./l
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74/01/2?.
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-------
                                                                      '.1 ')  11,0 111  'M
                                                                      HI-MHYS  HIWK AHUVP
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-------
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73/0*,/l4
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73/07/17
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73/08/21
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73/OH/23
73/04/13
73/04/2<>
73/10/1*,
73/10/31
71/11/13
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73/12/1K
74/03/14
74/04/10
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T IMF DFPTH
OF
OAY
14
1 6
14
OH
OH
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10
12
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0.001K O.OOSK O.001K 0.001K 0.003K 0.001K O.OOPK O.OiSOK


*



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0.002 O.OOSK 0.001K. 0.001K 0.003K 0.001K O.OOPK, O.OhOK







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-------
Srn-iFT  WPTwr>rVAi_ HATP 7S/MS/PO
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                                                                          14 01  10.0 1 1 1  '*'* 55.0
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71/07/17
73/OH/01
73/OH/21
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71/10/31
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                                                                                                                      0.77
                                                                                                                                 0.^3
 CD

-------
             II?\/AI_ (IMF  /5/OS/7O
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                                                                                           111
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73/OH/22
73/OH/23
73/04/13
73/04/2*>
73/10/1*.
H
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2
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00(11
OOOI
onui
oooi
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 10(11
onoi
oooi
                                                                             43 44  4?.o  ill
                                                                             HFNHYS FflWK AT
                                                                             1 IS        IDAHO
                                                                             CACIPTC  MI.IHTHWESi
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                                                                                               5is no.n
                                                                                               MEXltUKG
                          I.Art
                                      lin F

DIFLflK[N FMDWINI
MUD MUD
1 1 14COSO
2
TOXH'HFNF.- HCHL><
MUD MUD
UG/Kf^ U(^/KG
21 11204
0000 HEET U5PTH
34^23
HCHL-Ef
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L INDANr.
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AKDCLUK
I2f>n MUD
                                        0.4?
                                                    0.03K
                                                                0.06K
                                                                            P.OOK
                                                                                        0.03K
                                                                                                   0.03K
                                                                                                               O.O3K
                                                                                                                           0.r>OK
                           ^ 1
                                       1H.OO
                                                    0,54
                                                                            2.00K
                                                                                        0.03K
                                                                                                   0.03K
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                           4't'iO*.
                           4 * 4 r, f,
                           => 1
                            1 1 -JO*,


                            1 t!4O*>
  to
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-------
 STOrtFT  CI-Tt<| FVAI.  DATF  YS/OS/70
 IIPPFR
                                                                          1533*0
                                                                         43 34 00.0  111 41  00.0
                                                                         SNiAKE lUVEK NF.Ak HFISc
                                                                         1A       IDAHO
                                                                         PACIFIC  MiJKTHWEST
                                                                         UPPEK SNAKE
                                                                         1119C050              211120*
                                                                         ?.                     0000 l-EEf
DATF
F/0*>
73/OS/14
73/07/05
73/07/1 7
73/OH/o?
73/OH/21
73/0/22
73/OH/23
73/0^/13
n/ 10/17
73/10/31
73/11/13
7'3/U/n*.
73/12/lK
7A/01/22
74/02/0*)
74/02/26
74/03/14
74/04/10
74/05/OH
TIMF HFkTH
OF
HAY F F M T
1
1>
08
IS
l*<
10
20
10
12
17
12
1 2
08
30
10
4S
10
00
4S
10
40
tS
ss
00
JS
4S
4<5
00
30
30
?0
IS
30
30
0001
0001
oooi 
Ot)01
onoi
OdOl
onoi
oooi
oooi

oooi
oooi
OOO)
OOO 1
oooi
oooi
oooi
000]
oooi
oooi
0001
OOOOH 34330 34340 343SO 39 3ftO 34365 34370 343HO 3434O 34400
I.AK ALnrtiM BHC CHI.ROANE nno DDF uoj DIELUKIN tNii^iN TDXHHENE
IDf-MT. WH|. SM^I. WHL SMPI. WHL SMPL WHL SMP>L WHL SMfL WHI. SMP<. WH>_ Sl'iCi. WHL SM*"-- WM1- SMKL
M 1 ) M H P W
?0407
?3U()7
P'i'JO?
2 V407
?o4n7
31 407
34H7?
^4H /H
^4g] q
37407
47407
4441)7
4>i407
444O7
S] WO 7
4407
*407
^4O7
1 1 407
1 ^407
14407
IIR/I. UR/L UR/L UG/L IIT,/L Uf,/L U(;/l. UK/'. H('/L



0.001K 0.001K O.OOSK 0.001K 0.001K 0.003K 0.001* U.070K O.OhOK


.



O.OOIK O.IWS 0.005K O.OOK 0.001 0.003K 0.00'IK O.OO^K O.OhOK
O.OOIK 0.f)O3 0.005K O.OOIK O.OOK 0.003K O.OOIK 0.002K O.OhOK
O.OOIK 0.007 0.005K O.OOIK O.OOIK 0.003K O.OOIK 0.00?K O.OhOK





-


CD

-------
        Hf-TKIFVAI.  nATF 75
 IIPPFR SNAKF
                                                                      IS31M)
                                                                     41 14 00.0  111  41 00.0
                                                                     SNAKE XIVF.K  N6A HF.ISE
                                                                     1ft       IDAHO
                                                                     MAC I FTC  NDKTHWEST
                                                                     IJPfER .SNAKE
                                                                     1119C050              2111204
                                                                     ?                    0000 FEET

DATF
F^HNI
Tn -
71/OS/1S
71/0*>/0-S
71/0*,/1
71/07/17
71/OR/02
71/OH/21
73/OR/22
71/0/?^
71/0
5S
OO
5S
4S
4S
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30
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20
IS
30
10

DFPTH

FFFT
0001
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0001
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0001
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O(HH
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OOOl
OOOl
OOOl
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0001
OOOl
OOOl
OOOl
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3V50R
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inFN'T. WHL SMPI. WHL SMCI. WHI. SMPI.
NllMUFrt UK/1. UR/I. llfi/L
?0407
21Q07
?S407
?7407 0.001K 0.001K 0.001K
?407 O.OOIK O.OOIK O.OOIK
444O7
SI 407
44O7
>i4()7
44O7
11407
1 S407
14407
1260
I.IR/L



0.015K






0.015K
0.015K
0 . 0 1 5K








34333
ALDKIN
MUD
Ufi/KG
34343
BHf
.MUU
IJG /KG
193t>l
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MUD
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i 3936M
DDE
MUD
UU/Kl,
                                                                               0.03K
                                                                                         0.03K
                                                                                                    0.70K
                                                                                                              O.4?
                                                                                                                         0.33
                                                                               0.03K
                                                                                         0.03K
                                                                                                    0.20K
                                                                                                              0.01K
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to
o

-------
        WFTH1FVAI.  DATF  /5/u5/?o
                                                                        1533*0
                                                                       43 34 on.n  ill  4i oo.n
                                                                       SNAKE R1VFM  NFAR HEISE
                                                                       lh       IDAHO
                                                                       PACIFIC  W.IKTHWEST
                                                                       UfMF.R SNAKF
                                                                       1U9C050              2111204
                                                                       ?.                     noon  I-ERT
UcKTH
HATF
F4HM
TO
73/05/15
73/0,/0>>
73/o*./i9
73/07/05
7^/07/1 7
73/08/02
73/OH/?l
73/HK/22
73/OH/23
73/09/13
73/10/17
73/10/31
73/11/13
73/12/0^
73/12/18
7^/01/22
74/0?/0*>
74/02/2*>
7^/03/14
74/04/10
74/05/08
TIMf OFMTH
OF
HAY FFFT
1 R
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17
]H
13
10
1H
IS
14
1^
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15
I*.
1 0
20
10
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12
12
08
30
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10
00
45
10
40
15
55
00
55
45
45
00
30
30
?0
15
30
30
OOIH
0001
ooni
0001
0001
0001
0001
0001
0001

0001
OOOl
oooi
0001
oooi
oooi
00(11
oooi
oooi
0001
0001
OOOOM 3ll
I.AK nnr OIFLOKIN ENORIN TOXPHENE HCHLK HCHLK-EP LINIIANE AKUCLUK
[OFNT. MHO MHO Mill) MUD Mll(5 MUD Mill) IIKY 12hO Mill)
NMIMHPH HG/KO IIG/KG ur,/Kr, IJR/KR UG/KR IIR/KR .UR/KR IH,/K(,
?OWO7
?^-J07
?5S)07
?Vs)07 0.52 0.03K O.OhK 2.00K 0.03K 0.03K 0.03K 0.->OK
?9907
3)907
34H??
34H /H
^44l9
37907
4?uo7 0.10K 0.03K O.OhK 2.00K 0.03K 0.03K Oi03K' 0.50K
44907
t>iq()7
44Q07
5140V
4907
>.907
9907
11907
1 5907
19907
o
CO

-------
       WFTWF^VAl. DATF Y5/05/?n
                                                                  43 43 21.0 11? 05 03.0
                                                                  SMAKE HIVFK 2 MI E OF
                                                                  1*      IDAHO
                                                                  PACIFIC NOKTHWfiST
                                                                  UPPER 'SNAKE KIVEtt HASIN
                                                                  1H9C050            22111204
                                                                  7.                   0000 FEET
U6HTH
F1ATF
in
72/08/27


72/08/29

72/08/10


72/OH/ll
71/05/1S
71/0<>/O!
71/0^/19
71/07/OS
73/07/l<>
71/OH/Ol
7i/oa/2l
71/OH/22
71/OH/21
71/04/ 11
71/ 1O/ 1*>
71/ 1O/11
71/11/11
71/12/0*,
71/12/lH
74/01/22
74/02/OS
74/02/2^
74/01/11
7^/04/09
74/QS/Ofl
TIMF DFPTH
HF
HAY FFFT
O9 IS
12
11
09
12
O9
12
14
O9
09
09
OK
1-S
19
11
1*>
14
11
OK
1 1
17
1 7
11
12
1 *>
1 S
10
1 1
l
1.7
on
10
is
00
30
oo
10
10
00
?0
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IS
00
oo
10
2S
10
10
oo
?o
6.O
4S
4S
so
is
oo
30
10
30








oooi
OOOl
oooi
ooni
OOOl
OOOl
OOOl
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OOOl
oooi
oooi
oooi
noni
OOOl
oooi
oooi
oooi
noo i
oooi
OOOOrt 19130 39340 19350 393^0 39365 39370 39380 3939O 39400
l.AH  ALDKIN KHC OHl.RDANE DUO ODE IJUT OIELDKIN ENDKIN TDXHMENE
1I1FMT. WHL SMML WHL SMPI. WHL SMPI. WHL SMPL WHL SMPL WHL SMPL . WH'_ SNHI. WML SM>". WHL SMkl.
NIIMRFK ur,/L IIS/L ur,/L UR/L UR/L U/L nr./i. HfiA. UG/L
M42
MO?
1*1497
*<14?
i144
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61M
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2040H
?14OH . 
?S4f)
?740rt 0.001K 0.001 0.005K 0.001K 0.001K 0.003K 0.001K O.OO2K 0.060K
P440H
11 40rt
I^H I rt
1&H77
1441 H
1740H
A?4OH O.001K O.O03 0.005K O.OO1K 0.002 0.003K O.001K O.OO2K O.ObOK
i.44OH
^90H
444'M
S 1 4 0 8
49OS
640H
44O8
1 1 4 f ) 
15403
1 940H
CD

-------
                1_ MATF  7S/OS/?O
      SNAKF
                                                                       41 43 21.0  11? OS 03.0
                                                                       SNAKE KIVEK  2 MI E OH-  K(1HETS
                                                                       1*       IDAHO
                                                                       PACIFIC  NOKTHWEST
                                                                       UPPE* SNAKF  KIVER ^ASIN
                                                                       1119COSO              22111204
                                                                       2                      0000 t-ErT

OATF
FHHM
rn
72/OH/27


72/OR/29

72/OR/10


72/OH/l]
71/OS/lS
71 / 0*> /O*>
71/0*>/l9
71/07/OS
71/07/l*i
71/08/01
71/OH/21
71/OR/22
71/OR/21
73/O4/ 1 1
71/10/1*,
71/10/11
71/1 1/11
71/12/0*,*
71/12/lR
74/01/22
74/02/0*.
74/02/2*,
74/01/11
74/04/09
74/OS/OR

TIM
HF
PAY
O9
12
11
O4
1?
04
12
14
O4
04
04
OR
1 *>
1 9
H
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14
H
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1
7
7
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1 S
10
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1 R
1 7




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00
10
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00
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10
10
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10
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10

nFPTH

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i. AH HC.HL
I OFMT . WHI. SMPI.
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14418
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1 14 OR
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                                              144?O
                                           WHL  SMPI.
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 19333
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MUD
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343MH
DUE
MUD
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                                                          0.001K
                                                                     0.015K
                                                                                 0.03K
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                                                                                                       0.20K
                                                                                                                  0.1
                                                                                                                             O.l1!
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                                                          O.OOIK
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ro
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-------
DATF
                                                    IS3299
                                                   A3  43  21.0 11? 05 03.0
                                                   SNAKF.  HIVFR 2 MI F. OF R.IWF.RTS
                                                   liS       IDAHO
                                                   PACIFIC  NUKTHWEST
                                                   UPPER  SNAKF RIVER BASIN
                                                   HHCOSO             22111204
                                                   2                     0000 HfF.T
DEPTH

OATF
FROM
in
72/1H/27


72/08/24

72/OH/30


72/OH/31
71/OS/1S
73/OA/OA
73/O*./ 14
73/07/OS
71/07/1*.
71/OH/01
71/OH/21
71/OH/22
71/OH/?3
71/O4 / 11
73/1 O-/ 1 *>
73/ 1O/31
73/11/13
73/l2/f>*
73/12/18
7A/01/2?
7A/n?/o<>
7A/0? /?*,
7A/O3/ 13
74./OA/O4
7A/O.S/O8


TI^F I
OF
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04
12
13
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1?
04
12
1 A
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09
08
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1 y
1 1
1A
1 4
11
OH
1 1
17
1 7
1 1
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1 s
10
11
1 H
1 7

OO008 3V373 343H1 34343
34A03 39A13 39A23 397H3 .39 S 1 1
1FPTH I.AH OPT ntFlDWTN FMDR1N TOXPHRME Nf.HLH HCHI.R-EP LIMDAiME ARllC'-fl"
IDPNT. MUD MUD MUD
FFFT NIIM^PK IIK/KT, IJR/KR IJR/KR
IS
00
30
IS
oo
30
00
10
30
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30
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OOOl 1 1 HllH
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MUD MUD MUD MUD DRY 12frO rtlin
UR/KT, IIR/KG KG/KG UG/M. llfi/Kfi










.

2.00K 0.03K 0.03K 0.03K O.bOK






2.00K 0.03K 0.03K 0.03K O.SOK
f










-------
                i. DATF  7S/ns/?n
IIPPFR  SNAKF
                                                                      41 07 in.O  117 30 45.0
                                                                      SNAKF.   4T  TILOEN HH
                                                                      PACIFIC  W1KTHWES1 ,
                                                                      UPPER SNAKt  KIVER BASIN
                                                                      1114C050              611120^
                                                                      2                    0001  F-EF.T

DATF
FROM
m
72/OH/24
72/OK/24
72/OH/10
72/On/ll
72/09/24
72/1 1/07
72/12/27
71/05/14
71/o*,/07
71/0*,/1H
73/07/04
71/07/1*.
71/Ofl/Ol
71/OH/?2
71/OS/7*.
71/OH/77
73/04/13
71/10/17
73/11/01
71/11/1?
73/17/05
71/12/1K-
74/01/04
74/01/2?
74/02/01
74/07/25
74/01/1 1
74/04/04
74/05/OK
74/10/24




TIM
M|-
OAY
14
11
14
12
1 1
in
10
i *.
10
1 4
04
1 *,
10
04
18
04
07
10
04
!*
10
10
13
O7
12
17
10
1 5
1 4
1?
12
1 *>
1*>

f r

l
15
20
70
OO
OO
55
OO
in
15
00
10
70
10
0')
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70
OO
in
10
50
OO
00
3O
75
45
15
00
10
45
50
55
50
">5











oooi
OOO 1
oooi
oooi
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0001
oooi
0001
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oooi
01)01
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ooni
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ooni
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oooi
onoi
0001
O007
0003
0007
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I.AH
I OFMT.
MIMHC*
5H 75
n?17
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1/-J7
50
51/13
3504
70404
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75404
7 7 4 0 9
74404
11 4O4
145O?
15503
155O*i
17409
47404
44^04
4*i404
44409
5 1 4O4
74O9
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04O9
44O4
11 '104
1 H404
1 4<04
4407M
44O79
440H9
44O40
34310 14340. 19150 191*,0 393*.5 39370 393HO 39140 3S400
AI.OKIM HHC CHLRDAMF ono nnE DDT DIELDWIM ENDHIN TDXPHENE
WHL SMPI. WHL SMPI. WHL SMPI. WHL SMPL WHL SMHL WHL SMPL WHi. S^H1. WHL SMfi. WHI. SMPL
IIG/L MR/I. I1R/L DR/L UR/L Ufi/L  ('-/'. UR/'. UU/I.


*

O.OOIK O.OiS7 0.005K 0..001K 0.00? 0.007K 0.001 0.007K 0.060K
O.OOIK 0.004 0.005K O.OOIK 0.001 0.002K 0.004 0.007K O.Of.OK
O.OOIK 0.004 0.005K 0.001K O."001 0.007K O.OOIK 0.007K O'.OhOK



O.OOIK O.OOIK 0.005K O.OOIK O.OOIK O.OOIK O.OOlrt 0.002K 0.060K






O.OOIK 0.004 0.005K O.OOIK 0.002 0.003K O.OOIK O.OO7K O.OfcOK
0.001K 0.003 O.O05K O.OOIK O.OOIK O.OOIK O.OOIK O.OO2K O'.ObOK
O.OOIK 0.007 0.005K O.OOIK O.OOIK 0.003K O.OOIK 0.007* 0.060K














-------
  STOtfFT HFTHlirWAi. nATF  7S/n5/?0
                                                                      IS0047
                                                                     4? 07 30.0  112  30  45.0
                                                                     SNAKE R AT  TTLOEN  BR
                                                                     I ft      IDAHO
                                                                     PACIFIC NMHTHWEST
                                                                           'SNAKF  RIVFR  BASIN


OATF
FROM
rn '
72/OH/24
72/OH/29
72/08/30
72/OH/31
72/09/2
72/11/02
72/12/27
73/OS/14
73/0*/07
73/0^/18
73/07/04
73/07/1*
73/nfl/Ol
71/OX/22
7^/on/2<.
73/OH/27
73/09/13
73/in/17
73/ll/ni
73/11/12
73/12/05
73/l2/l
74/O1/O9
74/01/22
7./n?/o*>
74/02/2S
74/03/13
74/04/09
74/05/OH
74/10/24





TIM
PIF
OAY
14
13
14
1?
11
10
10
1*
in
19
09
1 *
10
04
1 K
09
07
10
O9
1 *
in
in
13
07
12
17
in
1 s
14
12
12
.1*
1 *>


F


15
20
20
00
no
55
00
30
15
00
30
2O
30
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no
2O
no
30
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so
no
no
3n
?5
45
IS
on
30
45
SO
SS
50
SS


OFPTH

FFFT







onoi
onni
noni
onni
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onni
onni
onni
onoi

onni
OOOl
onoi
ooni
nnoi
nnni
o noi
onni
nnni
0001
OOOl
onni
ono^
OOO7
ooni
nno7
1119C050 Ml 1204
2 OOOl FEET UEfTH
onnort 39410 394?0 397H? 39508 39333 39343 39351 39363 3936ft
LAB ' HC.HLR HCHLH-FP LJNDANF ARDCLOR ALDRIN BHC CH'.RUANE DUD OOE
lOFNiT. WHL SMPL HHL S*1PI. WHL SMPL 12M) MUD Mill) MUD MUD WJI)
NIIMHPK UR/L UP,/L UR/L UR/L Ufi/KR IIG/KG UR/KG UU/KR Ufi/Kii
S75
*>'m
*757
V/97
SO -0.001K O.OOIK O.OOIK
S103 O.OOIK O.OOIK O.OOIK
1SO4 O.OOIK O.OOIK O.OOIK
20904
2^909
2S9O9
27V09 O.OOIK O.OOIK O.OOIK 0.015K 0.03K 0.03K 0.20K 1.16 l.H
?49n9
31MT9
34-^0?
35Sn3
issn<,
^7"4!I9
4?404 O.OOIK O.OOIK O.OOIK O.O15K 0.03K 0.03K 0.20K 0.51 0.5
444O9 0.001K O.OOIK O.OOIK 0.015K
/.*>^09 O.OOIK O.OOIK O.OOIK 0.015K
444O9
51 9O9
?909
4909
>i4O9
4909
1 1409
1 5^:14
1 4404
9 <-> O 7 <
94079
44O49
94O90
CO

-------
STrNFT
IIPMFW  SMAKF
I. DATF  75/O5/7O
                                                                        150047
                                                                       4^ 07 30. 0  11? 30
                                                                       SNAKF H AT  TILOFN
                                                                       f.      IDAHO
                                                                       PACIFIC NORTHWEST
                                                                       UPPER SNAKF  RIVER
                                                                          45.0
                                                                          HR

OATF
FROM
Tn
72/OR/24
72/OR/24
72/OH/30
72/OR/31
72/04/2H
72/11/02
72/12/27
73/05/14
73/06/07
73/06/JR
73/07/04
73/07/1*.
73/OR/Ol
73/OR/22
73/OH/26
73/OH/27
73/09/13
73/10/17
73/11/01
73/11/12
73/12/05
73/12/1R
74/01/09
74/01/22
74/02/0*,
74/02/25
74/03/13
74/04/09
74/05/Ofl
74/10/24






T IMF OF. PTH
OF
DAY
14
1 1
14
12
1 1
10
10
l*>
10
14
04
1*.
10
04
Ifl
09
07
10
09
l*i
10
10
13
07
12
1 7
10
1 5
19
12
12
1*.
16
IS
70
70
00
00
55
00
30.
1 .
00
30
70
30
00
00
20
00
30
30
50
00
00
30
25
45
15
00
30
45
50
55
50
55
FFFT







OOOI
0001
0001
0001
OOOI
0001
0001
0001
0001

oooi
oooi
oooi
oooi
oooi
oooi
oooi
oooi
oooi
oooi
0001
oooi
0003
0007
0003
0007
1119C050 M11204
2 0001 hfcET DEHTH
OOOOK 34373 393H3 ^9 39 1 39403 39413 39423 H97H3 39511
I.AIA DOT OIFLD^TN ENDRIN TCIXPHPNE HCHLR HCHLR-SP LINI>A\E AKiir.'.nw
IDFNT. wijn Mim MHO MUD MUD MUD MUD DKY 1260 MUD
NIIMHFP lia/KG ljr,/KG IIR/KG IIG/KG UG/KO UK/KG UG/Kli IKi/Kd
5H75
1717
 1757
6797
50
5101
3504
7CIM09
73404
75909
27409 1.03 0.03K O.OftK 2.00K 0.03K 0.03K 0.03K' 0.50
74409
3) 409
14505
35503
35506
17409
47404 0.41 0.03K O.OlSK 2.00K 0.03K 0.03K 0.03K O."50
44409
46404
44409
51 404
74O9
44O9
6404
0404
1 1 409
1 5404
) 44O9
44O7R
99079
440H4
49040

-------
STCHFT  RFTKievAI.- DATF 7<>/Oi/?0
IIPPPP  SMAKF
                                                                         1S3?H1
                                                                        43 02 04.0  112 37 20.0
                                                                        Mf. TDCKFR SPHINf;
                                                                        1*       IDAHO
                                                                        PACIFIC  NIIRTHWFST
                                                                        IIPPF.R SNAKF  RIVFR HASIN
                                                                        2
                                                                                              0000 KEGT   OEfTM
DATF
FRUM
TO .
72/OH/27
72/OH/29
73/0^/07
73/O*)/lH
73/07/04
73/07'/l'>
73/OK/01
73/09/12
73/10/17
73/U/Ol
73/11/12
73/12/l
74/O1/09
74/01/22
74/O2/O*.
74/02/2S
74/O3/13
74/n4/09
74/OS/Ofl
T1MF OFPTH
ni-
OAY FCFT
IS
is
09
?0
09
17
11
21
1 1
10
17
10
IS
o
13
1*>
1 1
I*.
20
30
ss
4O
10
IS
30
3O
3n
3
3O
30
30
10
IS
30
4S
OO
00
30


OOOl
OOOl
OOOl
OOOl
OOOl

ooni
oooi
ooni
OOOl
onni
OOOl
OOOl
onoi
onni
OOOl
onoi
I.AH ALDR1N
inFNT. WHL SMPI.
MIMHFO Hfi/L
*i31 7
*>7??
 ??Ml 0
?S<1 0
?7S1 0
2M41O
31^10
37M10
4?^ 1 0
4401 0
4>
-------
STn-tFT
                \i.  OATF 7S/OS/70
       SMAKF
DATF
rn
77/OA/27
72/OH/29
73/06/07
73/06/1R
73/07/04
73/07/16
73/OB/01
73/09/1?
73/10/17
73/11/01
73/11/12
73/12/lH
74/01/09
74/01/22
74/02/06
74/02/2S
74/03/13
74/04/09
74/OS/OB
T I MF OFPTH
flF
OOOOM
1. AR
OAY FFFT KHIMUFR
IS
IS
09
?o
09
17
1 1
21
1 I
10
1 7
10
is
OH
1 3
16
1 1
16
2'n
30
ss
40
10
is
30
30
30
30
30
30
30
10
IS
30
4S
00
00
30


OOOI
oooi
onoi
oooi
0001

oooi
0001
oooi
0001
oooi
oooi
oooi
0001
oooi
0001
0001
61 1 7
67??
73l 0
S1910
791 0
4910
691 0
9910
11^10
1S910
1991 0
                  1S321
                 43  02 O4.0  112 37 70.0
                 MC  TUCKER SPUING
                 16       IDAHH
                 PACIFIC NUKTHWFST
                 UPPER SNAKF  RIVFR BASIN
                 1119C050               2111204
                 7                     0000 t-EET   DFPTH
                                 WHL  SMPI.
                                            HT.HLR-FP
                                            WHI
LiMOANF
WHI.  SMPL
AKDCurH
  1760
  UG/L
 39333
ALDR IN
 MHO
UG/KG
 39343
 HHC
 MUD
UG/KG
CH'_ RHANE
  Mllll
 ,UG/K(,
393 63
DUO
HUD
DUE
MUD

-------
STfHFT RFTHTF.VAI.  DATF  7S/OS/7I1
                                                                              IS32HI
                                                                            43  0? 04.0 11?  37 ?0.0
                                                                            MC  TIICKFH  SPUING
                                                                            I*        THANH
                                                                            PACIFIC  NI")HTHWEST  .
                                                                            IIPPFH SNAKF !VE HASIN

DATP
FROM
rn
72/0/27
72/OR/29
73/0,/07
73/O>/lR
73/07/04
73/07/l*>
73/Ofi/Ol
73/09/12
73/10/17
73/11/01
73/11/12
73/l2/l
74/01/09
74/01/22
74/02/06
74/0?/2S
74/03/13
74/04/09
74/OS/OH

TIM
np
OAY
,;
IS
09
20
O9
17
1 1
21
11
10
17
10
] S
OH
13
1*1
1 1
1*>
Jl 0
29910
31 <->! 0
37410
479 > 0
44910
4S91O 
S 1 9 1 0
291 0
4910
*>4l O
9-JlO
ll-Jl 0
1S910
1991 O
  to

-------
                       YS/OS/?O
      SNAKF
                                                                      153292
                                                                     4?  00 00.0 11? 00 00.0
                                                                     SPvilN'i CKFFK AT RHONCD
                                                                     IX       IDAHO
                                                                     PACIFIC NORTHWEST
                                                                     IJPPFR SNAKF KIVFK RASIN
                                                                     1119C050             22111204
                                                                     >                     0000 i-EET
DEPTH

OATF
FUI1M
rn
72/OH/27
72/OH/29
72/OH/30
7? /OH Ml
73/0*,/07
7i/o*,/ IH
73/07/04
73/07/lS
73/OH/01
73/09/1?
73/10/17
73/11/O1
73/11/12
73/12/05
73/l?/lH
74/O1 /OH
74/01/21
74/0?/0<>
74/02/25
74/03/13
74/O4/O9
74/05/09
7A/0*i/ 19
74/07/02

TIM
ni-
OAV
1 ?
12
1 3
1 1
OH
1 7
OH
1 S
09
1 9
1 2
1 1
IS
OH
OH
12
1 7
1 1
1 9
09
14
OH
14
13

P


,s
IS
15
?o
40
35
30
IS
OS
40
30
3O
311
45
3O
IS
4S
45
OO
00
4>
OO
40
10

OFPTH

FPFT




oooi
0001
000)
0001
0001

oooi
oooi
OOOI
oooi
oooi
oooi
oooi
oooi
OOOI
OOOI
0001
OOOI

0001
OOfiOH 3933O 3934O 39350 393ftO 393*5 39370 393HO 3939
i.AK AI.IW1N RHC CHLROANF ODD DDE I1I)T Ulr'.DKIN ENDHl
IDFMT. WHI. SMPI, WHL SMPI. WHL SMPI_ WHI. SMPL WHL SMPL WHL SMHL -WHi. SMPL WHI. SM
MIMHFJ nr,/i. ur,/L IIR/L ufi/L nfi/L U(i/i. UU/L IK,/L
*,31A
s^l s
*i37?
<>3?H
?^9 1 1
?S91 I
77911
?9Hl I
31 91 1
3791 I
4?m i  
4491 I
4*141 1
4991 I
S191 1
79) I
491 1
*i9\ I
991 1
1 19U
1 591 1
1 9911
?5*>?9
77*>7'i
                                                                                                                      39400
                                                                                                                    WHI.  SMK-L
cs?

-------
STHRFT P.FTRIFVAL OATF 7S/OS/PO
IIPPF* SNAKF
                                                                     IS329?
                                                                    A? oo oo.o  ii? no  oo.o
                                                                    SPKINP, CWFFK AT WRONG') ROAD
                                                                    1*      IDAHf)
                                                                    PACIFIC NOKTHWF.ST  .
                                                                    UPPER SNAKE RIVER  BASIN
                                                                    1U9C050             22111204
                                                                    ?                    0000 FEET
IIEPTH
HATE
TO
72/08/27
72/08/29
72/08/30
72/08/31
73/0*1/07
7^/0'i/lfl
73/07/04
73/07/1A
73/08/01
73/04/12
73/10/17
73/11/01
73/11/12
7^/12/OS
7^/12/18
74/01/08
74/01/21
74/O?/O<>
74/02/2S
74/O^/ 1 3
74/O4/04
74/HS/O9
74/OA/ 14
74/07/0?
OOOOH
TIMF (1FPTH LAR
HF IOFWT.
RAY FF.F.T MIMHFK
12 IS *,-!
12
13
1 1
08
17
O8
IS
O4
1 9
12
1 1
IS
OH
OH
1 ?
17
1 1
19
O4
14
eR
14
13
is
IS
2O
40
3S
30
IS
OS
40
30
30
30
4S
30
IS
4S
4S
on
00
4S
00
40
10



0001
0001
OO01
ooni
0001

0001
nooi
0001
onni
0001
noni
onoi
0001
onni
onni
onni
0001

ooni
*>31

*>3?
2^41
?S4l
?74l
?491
^14-
^791
4?4l
4i.41
4*>4 1
4441
S141
?4l
441
*.4l
941
1 141
1 S41
1441
75l?
?7*>?
39410 39420 397R2 34508 39333 39343 ^931>1 393ft3 39368
HCHLK HC.HLK-FP 'LINDANE AROCLOK ALORIN BHC CH'.ROANE DUO ODE
WHL SMPI. WHL SMPI. WHL SMPI. 12*.0 MUD MUU MDIJ MJO MUO
IIR/I. IIG/I. IIR/L UG/L UG/KG UG/KG , UK/KG UG/KG UG/KG .
*
ft
?
ft
I
I
I
1
I
1
j_ i
i
i
i
i
i
i
i
i
i
i
i
9
*

-------
       MCTW l
                l. OATP  7S/OS/7O
                                                                      15124?
                                                                     4?  00  00.0 11? 00 00.0
                                                                     SLUING CHFFK A.T KHONCO  KUAII
                                                                     is       IDAHO
                                                                     PACIFIC MOKTHWEST
                                                                     uppe*  SNAKF RIVFR HASIN
                                                                     1H9C050             22111204
                                                                     ?                     0000




OOIM1M
OATP TIMC nPkTH i. Ax
FuriM
rn
77/OM/2 7
72/OH/24
72/nn/l<>
72/OS/11
71/OS/07
71/OS/ 1H
71/O7/04
71/07/1*1
71/00/01
71/04/ 12
7'1/10/17
71/11/01
71/ll/U
71/12/OS
71/12/1
74/01 /OR
74/01/21
74/02/OS
74/02/7. S
74/O1/11
7t/f14/04
74/OS/O"
74/0>/ I 9
74/07/02
OF
HAY
12
1 7
1 1
1 1
OH
17
OH
IS
00
1 4
12
11
] S
OH
OH
1 2
1 7
1 1
1 9
O4
14
flH
14
11

f
IS
IS
1 S
?o
4O
IS
10
is
OS
4O
10
10
10
4S
10
IS
4S
4S
00
OO
4S
00
40
10

-tri

! OPMT.
MIIMHF*
Ml
14171 141H1
00 T D1FLDKIN
MHO MUO
iir,/Kr; nr,/Kt;
ft
MIS


oooi
oooi
oon i
oooi
oooi

oooi
(11101
oooi
oooi
000)
oooi
oodi
oooi
oooi
oooi
OOO]
oooi

0001


?l4l
?Su)
?74]
244)
1] 4]
1741
4741
44M1
4<^ 1
4^sil
SI 4)
241
44)
s^l
W4 1
1 141
1 Sw]
1441
7S*>?
?7*>?
2
H
1
I
1
I
1
I
1
I
1
I
I
1
1
I
1
I
1
1
q
IS
                                                                  1P403
                                                               TDXPHFNF
                                                                  MHO
 14413
HCHUk
 MUD
                                                                                       34423
                                                      ur,/Kr;
                                                                                       MUD
                                                                                     i in /KG
 L 1NDANE
.MUD DKY
  .14 S 1 1
AKIICUtK
1260 Mill)
to
ro
c;

-------
              I.- OATF
     SNAKF
                                                                     IS1?87
                                                                    4?  54 46.0 11? 31  1H.O
                                                                    .SPKNI; M HDWUAMOS  IJAIMY-PUCATF.'.'_(I
                                                                    16       IDAHO
                                                                    par. i pir, NINTHWFST
                                                                    UPPF.P SNAKF KIVE8  ASIN
                                                                    1U9C050              ?lll?04
                                                                    ?                     0000 HEFT  DEPTH
nATF.
in '
72/0/?8
72/OH/29
7?/OH/1O
72/08/31
73/0*>/07
71/0^/18
71/07/04
71/07/1*.
71/OR/01
71/O9/12
71/10/17
71/11/01
71/11/12
71/12/04
71/12/17
74/01/08
74/01^1
74/02/0i
74/02/2S
74/01/12
74/O4/O9
74/OS/07
TIME DFPTH
Oh
DAY FF.FT
12
1?
04
09
11
IS
07
11
OS
18
11
13
14
1 H
1*
1 1
1*.
in
IS
18
li
21
IS
IS
4S
45
SO
in
4S
oo
s
00
00
so
4S
so
oo
on
10
is
10
30
10
4S




ooni
0001
0001
0001
0001

0001
0001
onoi
onni
nooi
onoi
onni
onni
0001
nnoi
OOOl
nnni
OOOOM 14110 14140 14150 19 3*iO 193*5 3O370 193HO 34.490 3S400
LAH ALDKIN HHC r.HI.RRANE DDD DOF UIJT . UIFLOxIN ENDkIM TUXKHENE
IOFMT. WHI. SMPL WHL SMPI. WHI. SMPI. WHL SMPI. WHL SMPL WHi. SMPL WH. SMP'. WHL Si"!"'. WHL SMPI.
>>111
>i7?H
^^ts
*iHf)H
?141 ?
PS41 ?
2741?
?V41 ?
1141?
1 ~l 4 1 ?
4?41 ?
4441 ?
4A,^1 7
444] ?
SI 41?
?4l ?
441?
*>41 ?
441 ?
1141?
1S41?
1441 ?
ro
ro

-------
STfNFT
                i. OATP 75/U5/7O
OATF
FHflM
rn
7?/oa/2
72/OH/29
72/OB/10
72/OH/ll
71/O*>/O7
7i/o*>/ IH
71/07/O4
71/07/1*,
71/OM/O 1
71/04/ 12
71/10/17
71/U/Ol
71/11/12
71/ 12/O4
71/12/17
74/Ol/OR
74/01/21
74/02/05
74/02/25
74/01/1?
74/04/04
74/05/07
T IM
np
HAY
12
12
OQ
O4
1 1
1 5
07
11
O5
1H
1 1
11
14
IH
,
1
5
0
5
IK
1 1
21
P


15
15
45
45
50
10
45
00
50
00
00
50
45
50
00
00
10
15
10
10
10
45
DPPTH

FFFT




OOOl
ooni
OOOl
OOOl
0001

OOOl
OOOl
OOOl
OOOl
OOOl
OOOl
OOOl
OOOl
tinoi
OOOl
OOOl
OOOl
                                                                     1532H7
                                                                    4? 54 4A.O  112 31 IH.O
                                                                    SPUNK a  HOLLANDS IIAIKY-PDCMFLU
                                                                    IA       IDAHO
                                                                    PAf.IFIC  NOKTHWF..ST
                                                                    IIPPF SNAKF  KIVFH HASIN
1114C050

(moon
L AH
I DF.'-iT.
Ml IMH f-a

14410
Hf.HI.R
WHL SMPI.
II G / 1.

144?0
HCHLK-FP
UIHI. srfpi.
i ir, / L

19 7H?
L 1 N n A M F
WHL SMPI.
ur,/i_
2
1950H
ARMCLOU
12*0
UR/L

14333
ALDKIN
MUD
IIG/KG
211
0000
39343
KHC
Mill)
UG/KR
1204
FEF.T UFPI
.-19 351
Crt'.WUAiNE
HUD
,lir,/KG

FH
393
-------
iTHSFT  RKTrtJFV/ftl. HATF  75/OS/PO
  OATF   TIMF  DFPTH
  F^flM    'IP
    TH    MAY   FFFT
                                                                          1512H7
                                                                        'A? -54  4A.O 112  M  IH.O
                                                                         SPKMfi  ii>  WOWLANOS  DATHY-POCA1 F.M.IJ
                                                                         1A       tt>AH(l
                                                                         PACIFIC  NOKTHWF.ST
                                                                         UPPF.i?  SNAKF. IVEM  HASIN
                                                                         1114C050              2111204
                                                                         2                     0000  t-EFT  D
OOOOK
LAB
DFNT.
IIIMHFW
3V1V1
 nor
Mill)
IIR/KK
14^M1
DTFinxlN
Mllf)
llf,/KR
19191
F.NOKTN
MUD
urc/Kfi
34401
TOXPHF.NF.
MUD
Ufi/Kfi
39413
HCHLH
MUD
Ufi/Kfi
14473
HCHI. H-E^
MUD
IJR/KG
197H3
\. IM1A.ME
MUD DKY
' Ufi/KG
>4 S 1 1
AkUCLOK
1260 MUD
U(i/Kr,
72/OH/24
71/07/1*)
71/OR/01
71/04/12
71/10/17
71/11/01
71/11/1?
71/17/17

74/01/21
74/01/12
1?
12
04
f)4
11
1 S
07
1 1
OS
I ri
11
11
14
1H
1*>
11
\^
10
IS
1
1^
21
is
35
AS
45
SO
10
45
00
SO
OO
oo
so
45
SO
OO
oo
10
1 s
10
10
10
45




OOOl
oooi
oooi
oooi
oooi

oooi
oooi
oooi
oooi
oooi
oooi
oooi
000 I
oooi
oooi
oooi
oooi
4441 7
5141?

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-------
STnFT  WhTKJFVAI. DATF
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-------
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-------
STTUFT RFTHIF.VAI.
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71/O4/2S
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71/11/14
71/17/04
71/12/19
74/O1/21
74/02/OS
74/07/27
74/01/12
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74/OS/07
74/10/22
74/10/23
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71/04/12
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71/10/10
71/11/14
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-------
STTHFT
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73/04/25
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74/02/05
74/02/27
74/03/12
74/04/10
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-------
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                                                                         1S0057
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-------
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72/01/10
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73/10/18
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74/01/08
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71/02/23
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-------
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71/12/04
71/12/14
74/01/OH
74/01 /21
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74/02/27
74/01/12
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74/OS/07
74/10/22








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-------
                  OATF 75/05/70
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74/02/27
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74/05/07
74/10/22













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-------
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-------
STO^FT W
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-------
                   DATF  7S/f>5/?0
 IIPPPH  SMAKF
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ft4/07/30
70/03/03
70/07/10
70/OH/24
70/04/2S
70/10/23
71/03/2ft
71/04/23
71/Oft/25
72/01/11
72/04/24
73/05/17
73/Oft/OS
73/Oft/21
73/07/03
73/07/19
73/07/31
73/09/11
73/09/24
73/lO/l
73/10/29
73/ll/lS
73/12/03
73/12/20
74/O1/O7
74/01/24
74/02/04
74/02/2M
74/03/11
74/04/H
74/OS/10

13
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-------
 P,FTIFVAI.
SNAKF
                   OATF  75/05/70
                                                                       153003
                                                                      43 3? 54.0  lift  47 57.0
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59/07/30
70/03/03
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70/OH/24
70/04/25
70/10/23
71/03/75
71/04/23
71/05/25
77/01/1 I
72/04/24
73/05/17
73/05/05
73/05/21
73/07/03
73/07/19
73/07/31
73/09/11
73/04/24
73/lO/lH
73/10/29
73/11/15
73/17/03
73/12/20
74/01/07
74/01/24
74/0?/04
74/02/2R
74/03/11
74/04/11
74/05/10
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-------
STPKFT
                U_  DATF  75/05/20
                                                                         153003           13172t>0
                                                                        43  3?  54.()  llh  47 57.0
                                                                        SNAKE' m\/F.K AT  MASSING  IDAHII
                                                                        )ft       IDAHO
                                                                        PACIFIC W1KTHWEST
                                                                        CENTRAL SNAKE IVE HASIM
                                                                        111
-------
STfUFT
                I_  P>ATF 7S/OS/70

DUTF
FROM
TO
70/03/01
77./OH/74
72/11/14
71/05/17
71/0/,/OS
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71/07/01
71/07/14
71/07/1]
71/O9/ 1 1
7l'/09/24
71/10/lH
71/10/29
71/11/15
71/17/01
71/12/20
74/01/07
74/01/24
74/02/04
74/02/-2R
74/01/11
74/04/H
74/05/10

T IM
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-------
 STCMFT
 IIPPFR SNAKF
11.  DATF  75/05/70
                                                                      IS3005           13213070
                                                                     43  4/S  54.0 lllS 5H 17.0
                                                                     HOISE  RIVEK WEST OF PARMA  IDAHO
                                                                    .1*       IDAHD
                                                                     PACIFIC  NORTHWEST
                                                                     CF.NTRAL  SNAKE R'VER HASIN
                                                                     111/21
73/07/03
73/07/19
73/07/31
73/09/11
73/09/24
73/10/1H
73/10/29
73/11/15
7^/12/03
73/12/20
74/01/07
74/01/24
74/02/04
74/02/24
74/03/11
74/04/11
74/05/10
nOOUH 39410 3947.0 397H? 3950H 39333 39343 39351 39363 3936H
TIMF. OFPTH LAH HCHLR HCHLR-FP LINDANF ARnf.LDR ALDRIN BHC CH'.RDANE ODU UuE
HF IDFMT. WHL SMPL WHI_ SMPI. WHL SMPI. 1 2*0 Ml|[) Mill) Mllf) MUD MUD
HAY FFFT MIIMRFR ur,/L IK,/L IIR/L UG/L UG/KG UG/KG , UG/KG .UG/KG UG/KG
14
14
is
07
O8
O9
07
O*.
09
\*
13
1 H
!*>
11
14
O9
1 ^
1*.
20
11
19
J9
10
30
20
25
30
IS
30
IS
?o
00
00
45
00
10
is
oo
l*i
is
oo
oo
30
30
30
OO
0.001K 0.001K
599*. 0.001K 0.001K 0.001K
7300 0.001K 0.001K 0.001K
OOOI ?091 1
OOOI ?39?0
0001 ?S9?0
0001 27"?o 0.001K 0.001K 0.002 0.015K 0."03K 0.03K 0.20K 37.34 32.25
OOOI ?9i97O
OOOI 94?O
oooi 1 1 >-i?o
0001 1*>9?..)
OOOI 19970
CO
*a
CO

-------
STrHFT
IIPPFfc  S'uAKF
                    I.  OATF 7S/HS/70
                                                                                     151005             13213020
                                                                                   41  4h  54.0  llh  5H  17.0
                                                                                   HDISE  RTVFK WEST  OF HAKMA  II1AHII


DATF
FBHM
rn
?2/Ofl/?.<,
72/11/14
71/OS/17
71 /0^5/OS
71/0*i/2 1
71/07/01
71/07/19
71/07/11
71/O4/ 1 1
71/04/24
71/1 0/lH
71/10/29
71/H/1S
71/ 12/01
71/12/20
74/01/07
74/01/24
74/0?/O4
74/02/2H
74/01/11
74/04/1]
74/05/10


TIM


e
OF
RAY
14
IS
07
OH
O9
07
O*>
f>9
1 *)
11
18
fi
1 1
1 4
09
11.
1 *
20
1 1
19
1 9
1.

20
7.5
HO
IS
10
IS
20
00
oo
4S
00
10
IS
00
IS
IS
00
00
30
10
30
00

OOOOH
OEfTH l.ftH
I DFNiT.
FFFT wiiMHFH
549*
7100
OOOl 7O41 7
OOOl 21970
OOOl 75470
OOOl 27470
OOOl 74Q70
OOOl ^1970
1 /47d
OOOl 14470
OOOl 4747O
OOOl 4447O
onoi 4*i4?o
OOOl 44470
ooo i s i 4?ri
OOOl 7470
OOOl '.470
OOOl f.4?0
000 1 4470
OOOl 11470
OOO 1 1 547 0
OOOl 14470
CENTRA). SNAKE RIVER RASIN
U19C050 2111204
2 0000 l-EEf DFPTM
34371 143H3. 19191 39403 19413 39423 397M3 39^11
HOT niELORTN ENORIN TOXPHENE Hf.HLR HCHI.H-EP LIMUANg AKIICLHU
MHO MHO MHO MHO MUD Mill) MUD DRY 12hO MUD
1 J f i / K fi llO/Kfr I)i/Kfi tlfr/K,!! tJO/K(i (Kr/Ko Ofi/Kii 1 1(> / K ^


*


71.09 0.03K O.O^K 2.00K 0.03K 0.03K 0.01K O.'sOK




5.70 0.59 O.O^K 2.00K 0.03K 0.03K 0.03K  0.40K











ro
c_n
O

-------
bTOHFT  HFTBfFVAI.  DATF  /5/O5/?O
                                                                         1 ^3004
                                                                       44  14  44.0 HIS  <3k 4H.O
                                                                       SNftKE  IVF.R AT  WETSF.K I

DATF
F^IIM
Tn
72/0*/28
72/11/20
73/05/17
73/0/./04
73/0^/^1
73/07/02
73/07/1S
7V07/31
73/09/11
73/09/24
73/10/19
73/10/2V
73/11/15
73/12/03
73/12/20
74/01/07
74/01/24
74/O2/O4
74/02/2"
74/03/1 1
74/04/11
74/05/10

T 1
n


F
DAY
,-,
1*1
in
19
in
13
1 4
) 1
13
14
n*
l^
12
14
10
14
10
1 1
13
12
17
1 1
30
On
Of)
?0
5O
35
45
45
20
45
30
45
OO
50
3O
30
15
30
oo
3d
OO
45

OFMTH

FFFT


OOOl
00(11
OOOl
000 1
OOOl
noo i

OOOl
OOOl
OOOl
0001
OOOl
OOOl
OOOl
OOOl
0001
OOOl
0001
OOOl
OOOl
CFMTKAL SNAKE RIVE HASIN
1 1 19C050 7111204
2 0000 l-EFT DEPTH
OOnOH 39^30 39340 39350 343*0 39 3ft5 39370 3O3HO 3939O 39400
I-AH AI.DKJN HHf. r.HI.HDANF. ROD ODE DDT 1)1 EL IK 1 M fc-MDHIiM TOXPHENE
IOFMT. WHL SMPU WHL SMPL WHI. SMPI. WHL SMPI. WHL SWPL WHI. SMPL WH-. SMHI. WHL Shf-. WHI. SMPI.
MIIMHPM IJR/I. nr,/i. IKVL IIG/L ur;/L IK;/L UR/I. IIK/L IK,/I.
*>99H O.OOIK 0.022 0.005K O.OOIK 0.002 0.005 O.OOb 0.002K O.OftOK
730? O.OOIK 0.004 0.005K O.OOIK O.OOIK 0.002K O.OOIK O.OO2K 0.060K
?n992 1
4Pvv?l
449? I
4*.w2l
499? 1
51 "J?!
?9? 1
44? I.
*i92 1
W92 I
1 19?1
1 5921
199? 1
ro

-------
ST'HFT MFTMKVAC.
      SNAKF
                          7S/05/70
                                                                                        5H  4M.O
                                                                                        WF.ISEK IHAHII
                                                                       151004
                                                                     44  14  44.0
                                                                     SNAKE  RTVEH AT
                                                                     l*i       IDAHO
                                                                     PACIFIC NORTHWEST
                                                                     CENTRAL SNAKE KIVFR  HASIN
                                                                     1119C050              2111204
                                                                     7                     0000 HEEI

OATF
FROM
ro '
72/0/28
72/11/20
71/05/17
71/0*./04
71/0
12
14
10
14
10
1 1
11
12
1 7
1 1

F


10
00
00
20
50
15
45
4S
~i
45
10
45
00
50
30
10
15
10
00
10
00
45

nFK>Tn

FEFT


oooi
0001
0001
oooi
0001
oooi

0001
oooi
oooi
0001
oooi
oooi
OOOI
oooi
0001
0001
ooov
OOOI
oooi
OOOOH 14410 14470 1478? 39508 39333 39343 34351 34361 3S36H
I.AK HC.HI.H Hf.HLH-FP LINOAMF AKOCLOR ALDKIN HHC . CH'.miANt 1)1)1) UUt
IOENT. WHL SMPL WHL SMPL WHL SMPL I7fto MUD MHO MUD MUD . MUD
NIIMHFH lir,/L IIG/L UG/L UG/L UG/KG DG/KG DG/KG UG/KG UG/KG
*544 0.001K 0.001K 0.001K
7^02 0.001K 0.001K 0.001K
?0418
?14?l
4971
1 1971
15471
19471
to
CJ1

-------
  STflKFT tfTIFVAI_ 'DATF  75/05/?f>
  HPPFO

DATF TIMF DFPTH
FRflM f)F
TO ' HAY FFFT
72/0/2 13 30
72/11/20 1*. 00
73/05/17 .10 00 OOOl
73/0*1/04 19 ?0 OOOl
.73/0<>/2l 1O SO OOOl
73/07/02 13 35 0001
73/O7/1R 14 45 OOOl
73/07/3) 11 45_0001
73/09/11 13?..
73/09/2* 14 45 OOOl
73/lO/i9 0*. 30 OOOl
73/10/29 l*i 45 OOOl
73/11/15 12 00 OOOl
73/12/03 1* 50 nOOl
73/V7/20 in 30 OOOl
74/01/07 14 30 onni
74/01/2* 10 is nooi
74/O7/04 I] 3O OOOl
74/O2/2H 13 OO OOOl
74/03/11 12 30 OOOl
74/04/11 17 00 OOOl
74/05/10 1 1 45 OOOl
flOOOM 39373 393H3 39393 39403 39413
LAW ODT niFLDKIN EMOSJN TOXPHENE Hf.HLK
IOFNT. MHO MUD MHO MHO MUD
rv'IIMHF^ llfi/KH UR/K(i IJG/KT, lin/KK UG/KG
^994
730?
 7091H
?39? 1
759? I
?74?l 7.17 0.03K O.OiSK 2.00K O.O3K
79971
31 w?l
*79? L
3997 1
47971 0.77 0.03K O.OiSK 2.00K 0.03K
44971
4M,?l
44^7 ]
51971
7971
4971
^971
9971
11 971
15971
19971
                                                                         153004
                                                                        44  14 44.0  11*  5H 4H.O
                                                                        SNAKE HIVFK  AT  W6ISEK IllAHtl
                                                                        1^       FDAHD
                                                                        PACIFIC NCIHTHWFSr
                                                                        CFNTKAL SNAKE KJVFK HASIN
                                                                        U19C050              711170^
                                                                        2                     0000 I-EP.T
                                                                                          39423      ?97K3
                                                                                        HCHLK-E.P  L1NDANE
                                                                                          MUD     MUD DKY
  Wil \
 ItiO.Ci*
\7.hO MUD
                                                                                            0.03K
                                                                                            0.03K
                                                                                                       0.03K
                                                                                                       O.03K.
                                                                                                                  O.bOK
                                                                                                                 0.50K
ro
cn
u>

-------
                     i_ PIATF 75/O5/?0
   IIPPPW  SNAKF
                                                                               4(13004
                                                                              44  50 Ofc.O  117 54  01.0
                                                                              SNAKE RIVFH  HL HROWNLRF  HAM
                                                                                                                                44->OOh0117S
                                                                              PACIFIC NOKTHWF.ST
                                                                              CENTKAI. SNAKE RIVF.K KASTN
                                                                              H19C050               2111204
                                                                              2                      0000  I-EET
DEPTH

OATF
FBflM
Tn
71/05/17
71/0,/04
71/0",/21
71/07/02
71/07/lH
71/07/11
71/04/11
73/OQ/24
71/10/lH
71/10/20
71/11/15
71/12/01
74/01/07
74/01/24
74/02/04
74/02/2
74/01/1 1
74/04/11
74/05/10


TIMP
OF
tlAY
14
I*.
14
]*>
l*>
1 *,
D4
1 7
20
1 9
14
17
17
11
1 
1 <>
15
14


15
10
45
OO
15
15
45
10
10
10
?5
10
10
20
00
10
30
00
15

I1FPTH

FFFT
0001
0001
0001
ooo'i
0001
onoi

0001
0001
0001
0001
0001
0001
nooi
0001
0001
0001

0001
OOnOH 1411O 1434.0 10350 393iSO 393ft5 39370 343HO 3419O 39400
I.AH 4LORIM HHC T.HI.KOANF 000 ODE DOT OlF.i.OKIM ENIW1N . TOXPMENt
IOF.MT. WHL SMPI. WHI. SMPL WHL SMPL WHL SMPI. WHL SMPL WHI. SMPI. WHL SMPI. WHL SMPi. WHL SMHL
NIIWUFW IIR/I. UR/L UR/L UR/L UR/L UR/L , UR/U llfi/L Ufi/t
?OQ1Q
?*??
?5^??
?74?? O.OOIK 0.001 0.005K O.OOIK 0.003 0.007 0.009 0.00?K -O.OhOK
?44??
114??.
1 /4??
141)??
4?4;-? O.OOIK 0.001 0.005K O.OOIK O.OOIK 0.002 O.OOIK 0.002K 0.060K
444??.
4*iQ?? i
444??
?4?2
44??
*.4?2
44??
1 10??
1 54??.
144?2
to
en

-------
STCKFT
IIPPFW
                  l.  OATF /S/OS/?0
              :  DFPTH
    FRT)M
     rn
           flF
          HAY
                 FFFT
                                                                                                                      44-50060117^
                                                                        44 SO 06.0  117  54 01.0
                                                                        SNAK6 RIVE-M  HI.  HKOWNLEE  DAM
                                                                        41       OHFRflN
                                                                        PACIFIC NORTHWEST
                                                                        CF.NTAi; SNAKE RIVEK BASIN
                                                                        1119C050              2111204
                                                                        ?                     oooo
OOOOH 19410
I.AH HC HL
flFiJT. WHL SMPI.
illMAF'-J HR/L
19420
Mf.M.n-FP
WHL SMPI.
IIR/L
197H2
L I NPANF
WH|. SMPL
IIR/U
1950ft
ARnCUN
1260
IIR/L
39333
ALDRIN
MUD
UG/KR
39343
HHC
MUD
IIG/KG
191 SI
CH'.HllANc
MUll
llfi/KR
39361
MUD
HUD
UK/KG
39368
ODE
MUD
. IIR/KG
           14
           14
  71/07/02
  71/07/1H
  7^/oq/li
7^1/1 I/IS
71/12/01
74/01/07
 74/02/04
 74/02/2
 74/01/11
 74/04/11
 74/OS/10
   10
   4S
   00
   IS
   IS
O9 4S
1 7 10

19 1O
14 7S
17 10
1 7 10
11 2O
]* OO
16 li)
16 10
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14 IS
OOOl
OOOl
0001
oooi
0001
onoi
oooi
onoi
onoi
ooni
oooi.
oooi
onoi
oooi
oooi

oooi
                          ? o g 1 9
                                     0.001K
                                     0.001K
                                                0.001K
                                                0.001K
                                                           0.001K
                                                           0.001K
                                                                     0.015K
                                                                      0.015K
                                                                                0.03K
                                                                                            0.03K
                                                                                                       0.20K
                                                                                                                 O.O3K
                                                                                                                             0.96
                          4*1422
                          992?

                         1 59??
                         19922

-------
ST'HFT
                 i. OATF
                                                                          403004
                                                                        44  SO O^.O  117  S4 01 .0
                                                                        SMAKE KJVRw  HI.  HWOUIMLrF
                                                                                                                        44^00^01
                                                                        PACIFIC MDHTHWFST
                                                                               L SNAKF  RJVF.H  HASIM
                                                                                               oooo I-EET
^M
TO
73/OS/l 7
73/O*,/04
73 /OS/? ]
73/07/02
7 3 / 0 7 / 1 H
73/07/31
73/09/ 1 1
73/04/74
73/ !(>/ 1 H
73/ IO/24
7 3 / U / I S
73/12/03
74/01 /07
74/01/24
74/02/04
74/02/2H
74/03/1 1
74/04/11
74/OS/10
T 1 MC 1
OA Y
14 ]S
\^ 10
1 4 4S
\^ 00
IS IS
1 * is
04 4S
1730
70 30
4 10
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1FHTH
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0001
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oooi
0001
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000 1
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I AH
                          ? 0  ]
                                    nor
                                    MHO
                                             niFi.nw'iM
                                                          MHO
                                                         DC, /K.T,
                                          TOX^HFNE
                                             HDD
HCHLW
 MDO
HCHLK-EP   I. INDflNF.
  MUD      MUD  DHY
AKIir.'.llH
1260  MUD
                                      I.q7
                                                 0.03K
                                                            O.OiSK
                                                                       2.00K
                                                                                   0.03K
                                                                                              0.03K
                                                                                                         0.03K
                                                                                                                    O.SOK
                          3747?
                          3 4 4 7 '

                          4447?
                          4^4? ?
                          444??
                           747?
                           44??
                           447?
                          1147?
                          1 S4?7
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    to

-------