RECONNAISSANCE OF 

SELECTED MINOR ELEMENTS 

IN SURFACE WATERS OF 

THE UNITED STATES. OCTOBER 1970 

............. URVEY CIRCULAR 643 

repared in cooperation with the U.S. Bureau of Sport Fisheries and Wildlife 

Reconnaissance of 

Selected Minor Elements in 

Surface Waters of the United States, 

October 1 970 

By W. H. Durum, J. D. Hem, and S. G. Heidel 

GEOLOGICAL SURVEY CIRCULAR 643 

Prepared in cooperation with the 

U.S. Bureau of Sport Fisheries 

and Wildlife 

Washington J 971 
United States Department of the Interior 

ROGERS C. B. MORTON, Secretary 

Geological Survey 

William T. Pecora, Director 

Free on application to the U.S. Geological Survey, Washington, D.C. 20242 
FOREWORD 

In recent months many inquiries have been received by the U.S. Geological Survey 

regarding the occurrence of mercury in water resources. Although public interest has 

centered on learning more about the widespread natural and manmade sources of 

mercury, the implication in many inquiries has been: Are there other potentially 

dangerous chemical elements present in water resources? The nationwide reconnaissance 

sampling reported here was designed to provide a partial answer to that question. 

In view of the growing national concern, there is an acute need to place facts on record 

as soon as they accumulate. The Survey provides the enclosed data report to assist in 

establishing a continuing baseline of information about the quality of our water 

resources. 

6;<_.7d~~j E. L. Hendricks 

Chief Hydrologist 

III 

CONTENTS 

Page 

Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III 

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 

Units and terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 

Summary of analytical methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 

ILLUSTRATIONS 

Page 

Figures 1-6. Maps showing sites from which samples of minor elements were obtained: 

1. Northeastern United States...................................... 3 

2. Southeastern United States...................................... 4 

3. Central United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 

4. Southwestern United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 

5. Northwestern United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 

6. Alaska, Hawaii, Puerto Rico, and Virgin Islands . . . . . . . . . . . . . . . . . . . . . . 7 

TABLE 

Page 

Table 1. Reconnaissance of selected minor elements in surface waters of the United States, 

October 1970: 

Alabama . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

Alaska . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

Arizona . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

·Arkansas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 

California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 

Colorado .............. ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 

Connecticut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 

Delaware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 

District of Columbia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 

Florida ........................ : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 

Georgia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 

Hawaii.......................................................... 16 

Idaho........................................................... 16 

Illinois . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 

Indiana . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 

Iowa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 

Kansas.......................................................... 20 

Kentucky . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 

Louisiana. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 

Maine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 

Maryland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . 22 

Massachusetts . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 

Michigan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 

Minnesota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 

Mississippi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 

v 
'Page 

Table 1. Reconnaissance of selected minor elements in surface waters of the United States, 

October 1970:-Continued 

Missouri .. ·. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 

Montana . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 

Nebraska . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 

Nevada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 

New Hampshire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 

New Jersey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 

New Mexico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 

New York . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 

North Carolina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 

North Dakota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 

Ohio .......................................................... •. 34 

Oklahoma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 

Oregon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 

Pennsylvania . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 

Rhode Island . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 

South Carolina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 

South Dakota . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 

Tennessee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 

Texas........................................................... 40 

Utah . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 

Vermont . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 

Virginia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 

Washington ............... ·....................................... 44 

West Virginia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 

Wisconsin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 

Wyoming........................................................ 46 

Puerto Rico . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 

VI 
Reconnaissance of Selected Minor Elements in 

Surface Waters of the United States, 

October 1 970 

By W. H. Durum, J. D. Hem, and S. G. Heidel 

SUMMARY 

A nationwide reconnaissance of selected minor 

elements in water resources of the 50 States and Puerto 

Rico was made by the U.S. Geological Survey in 

cooperation with the U.S. Bureau of Sport Fisheries and 

Wildlife during autumn, 1970. Initiate'd in response to 

the growing need for data on minor elements in water, 

including toxic metals, the synoptic survey provides an 

up-to-date baseline of such data largely for dry-weather 

flows of streams that are sources of municipal and 

industrial water for the Nation's metropolitan areas. 

More than 720 samples obtained during October and 

November 1970 from rivers and lakes were analyzed for 

arsenic, cadmium, chromium {hexavalent), cobalt, lead, 

mercury, and zinc. Sampling sites fall within three 

categories: (1) surface water sources of public water 

supplies for cities of more than 100,000 population, or 

for some States, the largest city in each State, (2) water 

courses downstream from major municipal and (or) 

industrial complexes in each State, and (3) U.S. 

Geological Survey hydrologic bench-mark stations. 

Hydrologic bench-mark stations were established in the 

mid-1950's for measuring long-term natural trends in 

streamflow and water quality,. These stations are located 

in undeveloped drainage basins in the major 

physiographic regions of the country. 

Samples were taken mainly during the period 

October 1-15, 1970, when rivers were at medium or 

low-flow stages in many parts of the country. Samples 

were filtered (0.45-micron openings) to provide 

information on sediment-free water like that normally 

supplied to the user. The samples were acidified ( 1.5 

milliliters nitric acid for a 1-liter sample) when collected 

to prevent separation of minor elements during shipment 

to a designated laboratory for analysis. For each site, 

stream discharge in cubic feet per second was measured 

or estimated at the time ·of sampling, when it was 

practicable to do so. More complete chemical analyses 

for samples collected at many of these sites have been 

published in the Geological Survey water resources data 

reports. 

The sampling sites used in this survey are shown in 

figures 1-6 in the back of the report. A brief summary 

of the results for each element is given below The 

analytical results are given in table I in the back of the 

report. 

Arsenic.-Seventy-nine percent of the 727 samples 

examined had arsenic concentration less than I 0 J,J.g/1 

(micrograms per liter) which is the lower limit of 

detection, 21 percent of the samples had arsenic greater 

than 10 J,J.g/1, and 2percent had more than 50 J,J.g/1-the 

maximum considered safe for drinking water {U.S. 

Public Health Service, 1962). A sample from Sugar 

Creek near Fort Mill, S.C., downstream from an 

industrial complex in North Carolina, had the highest 

arsenic content, I ,100 J,J.g/1, of any sample obtained in 

this survey. 

Arsenic was identified in as many samples from 

bench-mark locations as in samples from any other 

sources. 

Cadmium. -Cadmium was detected in 42 percent of 

the samples in concentrations ranging from I to 10 J,J.g/1. 

About 4 percent of the river samples had cadmium in 

excess of 10 J,J.g/1 (the Public Health Service upper limit 

for drinking water) and these occurred in about 

one-third of the States. The maximum concentration 

found was 130 J,J.g/1. Cadmium was detected in 

samples from bench-mark sites, public water 

supplies, and metropolitan-industrial complex 

locations; but 54 percent of the samples did not 

contain measurable amounts of cadmium. The 

implication of the data in table 1 is that the higher 

concentrations of cadmium in water generally occur in 

areas of high population density. 

Chromium-Chromium (hexavalent) rarely was 

detected at levels much above about 5 J,J.g/1, and occurred 

in the range 6 to 50 J,J.g/1 in only II of more than 700 

samples. There were no concentrations in excess of 

50 J,J.g/1, the upper limit for hexavalent chromium in 

drinking water. 

Cobalt.-Cobalt concentrations most commonly 

were below the detection limit (less than 1 J,J.g/1), but 

cobalt was found in 37 percent of the samples, 

commonly in the range from 1 to 5 J,J.g/1. The higher 

value is about the upper limit of solubility of cobalt in 

normal river water. 
Lead.-Lead was found in about 63 percent of 

samples in concentrations ranging from 1 to SO J.J.g/1. In a 

few waters lead was detected in excess of SO J.J.g/1, the 

upper limit for drinking water. Lead occurs widely in the 

range 6 to SO J.J.g/1. 

Lead was detected less frequently in samples collected 

at bench-mark sites than in those from public 

water-supply sources and from streams below 

metropolitan-industrial areas. 

Mercury. -Data on mercury are reported in two 

forms: dissolved and total. The concentration of the 

di~solved form is an indication of what might occur in a 

treated or filtered water supply at the same sampling 

point. Total mercury represents the amount in the 

water-sediment mixture. The difference between 

dissolved and total mercury is indicative of the portion 

that adheres to suspended particles which might be a 

part of the food chain of the aquatic community. 

Dissolved mercury ranged from below the lower limit 

of detection (0.1 J.J.g/1) to 4.3 J.J.g/1 and was found in only 

7 percent of the samples. In none did the concentration 

exceed the proposed Public Health Service upper limit 

for dissolved mercury in drinking water, which is S J.J.g/1. 

Total mercury was found in excess of S J.J.g/1 in a few 

instances. 

Zinc. -The concentration of zinc in most samples 

was in the range of 10 to SO J.J.g/1, but occasionally 

exceeded S ,000 J.J.g/1, the recommended (not mandatory) 

upper limit for drinking water. 

The survey shows, as one would expect, that the 

heavy metals studied are widely distributed in low 

concentrations in water. There is some evidence that the 

concentration levels are related to man's activities iii 

certain instances. There appears to be no widespread 

occurrence of these metals in water in amounts 

exceeding current drinking water standards. However, 

the initial assessment of these data does indicate 

potential problems in a few areas. Although firm 

conclusions regarding natural patterns and pollution 

anomalies cannot be drawn from the first results of a 

survey of this kind, similar data collected in the future 

will show whether trends exist in the overall distribution 

of these metals in water and whether the observed 

anomalies persist and should be studied in greater detail. 

UNITS AND TERMS 

Throughout the report, the following units have been 

used: 

J.J.g/1 (microgram per liter). Equivalent to 1 part per billion 

(ppb) or 1 pound in a billion pounds of water. 

Cfs (cubic foot per second). 1 cfs is equivalent to 

0.6S mgd (million gallons per day) or 0.0283 cubic 

meter per second. 

Duration. Percentage of days (on an annual basis) in 

which the flow equals or exceeds that given. 

2 

SUMMARY OF ANALYTICAL METHODS 

Geological Survey analytical methods (Brown and 

others, 1970) were used uniformly by all participating 

laboratories. A provisional Federal Water Quality 

Administration method (written commun., 1970) for 

total and dissolved mercury was used. 

1. Arsenic (silver diethyldithiocarbamate method). Inorganic arsenic compounds are reduced to arsine 

by zinc in an acid medium. The resulting mixture 

of gases is passed through a scrubber containing 

pyrex wool impregnated with lead acetate solution 

and into an absorbing tube containing silver 

diethyldithiocarbamate dissolved in pyridine. 

Arsine reacts with silver diethyldithiocarbamate to 

form a soluble red substance having maximum 

absorbance at about S3S ffiJ.l. The absorbance of 

the solution is measured spectrophotometrically 

and arsenic is determined by reference to an 

analytical curve prepared from standards. 

2. Cadmium (atomic absorpti~n method-chelationextraction). Cadmium in the sample is chelated 

with ammonium pyrrolidine dithiocarbamate 

(APDC). The chelate is then extracted from the 

sample with methyl isobutyl ketone (MIBK), 

which is aspirated into the flame of a 

spectrophotometer. 

3. Hexavalent chromium (atomic absorption -method-· 

chelation-extraction). Hexavalent chromium in 

water is chelated with ammonium pyrrolidine 

dithocarbamate (APDC) and is extracted from 

the sample with methyl isobutyl ketone (MIBK) at 

a pH of 2.4. The MIBK is aspirated into the flame 

of the spectrophotometer. 

4. Cobalt (atomic absorption method-chelationextraction). Cobalt in· water is determined by 

chelation with ammonium pyrrolidine 

dithiocarbamate (APDC). The chelate is then 

extracted from the sample with methyl isobutyl 

ketone (MIBK), which is aspirated into the flame 

of the spectrophotometer. 

S. Lead (atomic absorption method-chelationextraction). Lead in the sample is chelated with 

ammonium pyrrolidine dithiocarbamate (APDC), 

which is then extracted into methyl isobutyl 

ketone (MIBK) and aspirated into the flame of a 

spectrophotometer. 

6. Zinc (atomic absorption method-direct). The sample 

is aspirated directly with no pretreatment other 

than dilution or filtration as may be required. Zinc 

concentrations are then determined by standard 

atomic absorpti<;:m measurements. 

7. Mercury (flameless atomic absorption procedure). 

Persulfate oxidation follows the addition of 

permanganate to insure that organo-mercury 

compounds, if present, will be oxidized to the 

mercuric ion before measurement in the 
spectrophotometer. The procedure determines 

total mercury in water or water-sediment mixtures 

without differentiating inorganic froni organic. 

The procedure was used also for dissolved mercury 

(Federal Water Quality Administration, written 

commun., 1970). 

8 . Mercury (silver wire atomic ·procedure). Mercury is 

collected from an acidified sample of filtered 

water by amalgamation on a silver wire . The silver 

wire is electrically heated and the vapor drawn 

through an absorption cell placed in the light 

beam of the atomic-absorption 

spectrophotometer. The procedure was used in the 

study in some instances for determining with high 

precision (0.1 Jlg/1) that fraction of the total 

mercury present as stable inorganic mercury. 

REFERENCES 

Brown, Eugene, Skougstad, M. W. , and Fishman, M. J., 1970, 

Methods for collection and analysis of water samples for 

dissolved minerals and gases: U.S. Geol. Survey Techniques 

Water Resources Inv. , book 5, chap. Al, 160 p. 

U.S. Geological Survey, released annually, Water resources data, 

Part 2, Water quality records (separate book for each State): 

U.S. Geol. Survey, Water Resources Div. 

U.S. Public Health Service, 1962, Drinking water standards: U.S. 

Public Health Service Pub. 956, 61 p. 

100 0 lOOMILES 

L-~-L~--~------~ 

100 0 lOOKILOMETERS 

Figure 1.-Map of the northeastern United States showing sites from which samples of minor elements were obtained, October 1970. 

Numbers correspond with those shown in table 1. 

3 
100 0 lOOMILES 

L-~1-0~0~~~0~--~l~OO~K~ILO.METERS 

'---'---'---'-'-------' 

Figure 2.-Map of the southeastern United States showing sites from which samples of minor elements were obtained, 

October 1970. Numbers correspond with those shown in table 1. 

4 
Figure 3.-Map of the central United States showing sites from which samples of minor elements were obtained, October 1970. 

Numbers correspond with those shown in table l. 

5 
··-.. 100 0 100 200 MILES 

200 KILOMETERS 

Figure 4.-Map of the southwestern United States showing sites from which samples of minor elements were obtained, October 1970. 

Numbers correspond with those shown in table 1. 

6 
Figure 5.-Map of the northwestern United States showing sites from which samples of minor elements were obtained, October 1970. 

Numbers correspond with those shown in table 1. 

Figure 6.-Map of Alaska, Hawaii, Puerto Rico, and Virgin Islands showing sites from which samples of minor elements were 

obtained, October 1970. Numbers correspond with those shown in table 1. 

7 
Table I.-Reconnaissance of selected minor elements in 

[Analysis in micrograms per liter. Source of sample: PWS, public water 

USGS 

station 

No. 

02369800 

02374760 

02404000 

02407000 

02419893 

02423000 

02423390 

02429500 

02450250 

02465280 

02469525 

02470240 

02470649 

02471018 

02480008 

03575500 

03586000 

03590680 

15276000 

15276600 

15275100 

15275300 

15274600 

15274700 

15267160 

15158400 

09477520 

09522000 

09518000 

09508300 

No. on 

map and Location 

source 

ALABAMA 

1-BM Blackwater near Bradley--------------------------------'----------

2-MIC Conecuh River south of Pollard.---------------------------------

3-MIC Choccolocco Creek near Jenifer.:.·--------------------------------

4-MIC Coosa River at Childersburg·--------------------------------------

5-PWS Tallapoosa River at U.S. 231 bridge near Montgomery _______ _ 

6-MIC Alabama River at Selma-------------------------------------------

7-PWS Cahaba River pump station, Birmingham. ______________________ _ 

8-MIC Alabama River at Claiborne·--------------------------------------

9-BM Sipsey Fork near Grayson-----------------------------------------

10-MIC Black Warrior River at Fosters Bridge near Tuscaloosa. _______ _ 

11-MIC Tombigbee River at Highway 10 near Nanafalia----------------

12-MIC Tombigbee River near Carlton------------------------------------

13-PWS Cold Creek Reservoir Saraland pump station near Mobile ____ _ 

14-MIC Mobile River at Government Street at Mobile _________________ _ 

15-PWS Big Creek Reservoir pump station, Mobile _____________________ _ 

16-PWS Tennessee River at Whitesburg-----------------------------------

17-MIC Tennessee River at Wheeler Dam.--------------------------------

18-MIC Tennessee River at Smithsonia-----------------------------------

ALASKA 

1-PWS Ship Creek near Anchorage·--------------------------------------

2-MIC Ship Creek, Post Road---------------------------------------------

3-MIC Chester Creek, Arctic Blvd·---------------------------------------

4-MIC Fish Creek, Northernlights Blvd _________________________________ _ 

5-MIC Campbell Creek near Spinard-------------------------------------

6-MIC Hood Creek, Northernlights Blvd---------------------------------

7 -MIC Swanson River near KenaL----------------------------------------

8-MIC Chena River at Pikes Landing Road Crossing ___________________ _ 

9-MIC Tanana River near Nenana-----------------------------------~-----

ARIZONA 

1-MIC Colorado River below Parker Dam--------------------------------

2-MIC Colorado River at northerly international boundarY------------

3-MIC Gila River diversion at Gillespie Dam-----------------------------

4-BM Wet Bottom Creek near Childs------------------------------------ ---------------- 5-PWS Phoenix-Squaw Peak treatment plant intake ____________________ _ 

---------------- 6.::...Pws Phoenix-Verde River treatment plant intake---------------------

---------------- 7 -MIC Mineral Creek near Big Dome, 3 mi. south of Ray--------------

09474000 8-MIC Gila River at Kelvin-------------------------------------------------

---------------- 9-MIC Gila River approximately 1 mile upstream from San Carlos 

Indian Reservation boundary. 

09444500 10-MIC San Francisco River at Clifton-------------------------------------

----------------11-MIC Whitewater Draw at International BoundarY---------------------

Date of 

collection 

(1970) 

Oct. 7 

Oct. 7 

Oct. 15 

Oct. 14 

Oct. 26 

Oct. 13 

Oct. 23 

Oct. 9 

Oct. 22 

Oct. 26 

Oct. 8 

Oct. 9 

Oct. 7 

Oct. 6 

Oct. 6 

Oct. 21 

Oct. 21 

Oct. 21 

Oct. 16 

Oct. 16 

Oct. 16 

Oct. 16 

Oct. 16 

Oct. 19 

Sept. 30 

Oct. 16 

Oct. 15 

Oct. 16 

Oct. 27 

Oct. 19 

Oct. 15 

Oct. 12 

Oct. 12 

Oct. 8 

Oct. 23 

Oct. 8 

Oct. 19 

Oct. 10 

Discharge 

(cfs) 

102 

1,400 

84 

18,000 

9,600 

11,900 

71.4 mgd 

3,400 

17.1 

600 

2,400 

500 

43mgd 

4,000 

63.7 mgd 

38,100 

24,000 

43,200 

--------------- 730 

---------------

---------------

---------------

--------------- bto 

--------------- 120 

--------------- b5 

:Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

Estimated. 

8 
surface waters of the United States, October 1970 

supply (raw); MIC, municipal and industrial complex; BM, bench mark] 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved I Total 

ALABAMA-Continued ----

50 (a) (a) 2 6 9 (a) (a) (a) 

90 (a) (a) (a) 8 3 (a) 0.1 (a) 

95 (a) 5 2 (a) (a) 30 (a) (a) 

20 (a) 2 2 (a) 4 50 (a) (a) 

15 10 2 (a) 45 10 (a) (a) (a) 

67 (a) (a) (a) (a) (a) (a) .1 (a) 

--------------- 10 12 2 (a) (a) 20 (a) (a) 

99 (a) 4 (a) 22 9 (a) (a) (a) 

60 (a) 5 1 (a) 6 (a) (a) (a) 

85 30 6 (a) 22 6 (a) (a) (a) 

90 (a) (a) 3 12 (a) (a) (a) (a) 

90 (a) 2 2 (a) 10 (a) (a) (a) 

--------------- (a) 2 (a) 5 2 10 .1 (a) 

90 (a) 65 1 12 (a) 30 .1 (a) 

---------- ---- (a) (a) (a) 17 (a) 20 (a) (a) 

40 (a) 90 (a) 12 (a) (a) .1 (a) 

75 (a) 5 (a) (a) (a) (a) .1 (a) 

40 (a) 10 (a) 25 (a) (a) (a) (a) 

ALASKA-Continued 

--------------- (a) (a) (a) (a) (a) 10 -------------- (a) 

--------------- (a) (a) (a) (a) 1 10 -------------- (a) 

--------------- (a) (a) (a) (a) (a) 10 -------------- (a) --------------- (a) (a) (a) (a) (a) 10 -------------- (a) 

--------------- (a) (a) (a) (a) 2 (a) -------------- (a) 

--------------- (a) (a) (a) 3 3 llO -------------- (a) 

--------------- 10 (a) (a) (a) 3 (a) -------------- 1.1 

--------------- (a) (a) (a) (a) 5 (a) -------------- (a) 

--------------- (a) (a) (a) (a) {a) 45 -------------- (a) 

ARIZONA-Continued 

--------------- (a) (a) (a) {a) (a) (a) -------------- (a) 

--------------- (a) (a) (a) {a) {a) 20 -------------- (a) 

--------------- (a) (a) (a) {a) {a) 30 ----.·--------- (a) 

--------------- (a) (a) (a) (a) (a) 20 -------------- (a) 

--------------- (a) (a) (a) 1 (a) 20 -------------- (a) 

-----·--------- (a) (a) (a) (a) (a) (a) -------------- (a) 

------------··· (a) 130 (a) 4,500 (a) 42,000 -~------------ (a) 

--------------- (a) (a) (a) (a) (a) (a) -------------- 2.3 

--------------- (a) (a) (a) {a) (a) (a) -------------- (a) 

--------------- (a) (a) (a) (a) {a) 20 -------------- (a) 

--------------- (a) 1 2 1 (a) 20 -------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

9 
Table I.-Reconnaissance of selected minor elements in 

USGS 

station 

No. 

07264000 

07340300 

07363300 

10261500 

11041000 

11051500 

11074000 

11098000 

11102300 

11087500 

No. on Date of 

map and Location collection 

source (1970) 

ARKANSAS 

1 ~MIC -~whlte River -near q_~~_!!_e_!!!. below Fayetteville_____________________ Oct. 16 

2-PWS Lake Fayetteville on White River·--------------------------------- Oct. 16 

3-BM North Sylamore Creek near Fifty Six·---------------------------- Oct. 30 

4-PWS Lake Fort Smith on Frog Bayou •• --------------------------------- ------------ 5-MIC Arkansas River at Lock and Dam 13 below Ft. Smith___________ Oct. 15 

6-PWS Lake Winona on Alum Fork, Saline River------------------------- Oct. 29 

7-MIC Arkansas River at Lock and Dam 6 below Little Rock.......... ------------

8-MIC Bayou Meto near Lonoke·------------------------------------------ Oct. 28 

9-MIC Arkansas River near Lock and Dam 3 below Pine Bluff......... Oct. 28 

10-BM Cossatot River near Vandervoort.__________________________________ Nov. 10 

11-PWS Hot Springs Reservoir on Bull Bayou .• ---------------------------- eact. 8 

12-MIC Ouachita River near Malvern, below Hot Springs________________ Oct. 9 

13-MIC Hurricane Creek near Sheridan·------------------------------------ Oct. 28 

CALIFORNIA 

1-PWS Mojave River at lower narrows at Victorville ________ ~------------ Oct. 7 

2-PWS San Luis Rey River near BonsaTI ______________________ ~------------ Oct. 7 

3-PWS Santa Ana River near Mentone·------------------------------------ Oct. 8 

4-PWS Santa Ana River below Prado Dam·-------------------------------- Oct. 8 

5-PWS Arroyo Seco near Pasadena.·---------------------------------------

6-PWS Rio Hondo above Spreading Grounds below Whittier Narrows 

Dam. 

Oct. 

Oct. 

7 

7 

7-PWS San Gabriel River at Pico·------------------------------------------- Oct. 7 

8-PWS Owen's River Aqueduct at Los Angeles .. -------------------------- Oct. 7 

9-PWS Los Angeles River at Glendale.------------------------------------- Oct. 7 

10-PWS Colorado River Aqueduct at La Verne____________________________ Oct. 7 

11-PWS Lower Crystal Spring Reservoir near San Mateo __________________ coct. 14 

12-PWS San Antonio Reservoir near SunoL--------------------------------- coct. 15 

13-PWS San Pablo Reservoir near Orinda----------------------------------- Oct. 13 

14-PWS Upper San Leandro Reservoir near San Leandro_________________ Oct. 13 

15-PWS South Bay Aqueduct at Los Gatos·-------------------------------- Oct. 12 

16-PWS American River at Watt Ave. Bridge at Sacramento______________ Oct. 5 

11447500 17-PWS Sacramento River below American River at Sacramento________ Oct. 7 

11475560 18-BM Elder Creek near Branscomb .• ·------------------------------------ Oct. 7 

11264500 19-BM Merced River at Happy Isles Bridge near Yosemite__________ Oct. 20 

11046500 20-MIC San Juan Creek near San Juan Capistrano_________________________ Oct. 7 

11048500 21-MIC San Diego Creek near Irvine_________________________________________ Oct. 7 

11066500 22-MIC Santa Ana River at Riverside·--------------------------------------- Oct. 8 

11072200 23-MIC Temescal Creek at Corona.·----------------------------------------- Oct. 8 

11311150 24-MIC San Joaquin River near Stockton Ship ChanneL_________________ Oct. 2 

_1_1_4_4_76_5_0 __ 25_-_MIC Sacramento River at Freeport.·------------------------------------- Oct. 5 

Discharge 

(cfs) 

1.5 

.50 

.40 

27 

1.3 

136 

b2,500 

bt5,400 

---- ___________ ., 

1.0 

.50 

60 

10 

bt5,5oo 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter, cadmium, chromium 

~stimated. 

CSample obtained for mercury Jan. 29, 1971. 

esample obtained for mercury Feb. 5, 1971. 

10 
surface waters of the United States, October 1970-Continued I 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) {Cd) hexavalent (Co) {Pb) (Zn) (Hg) 

(Cr) Dissolved 

J 

Total 

ARKANSAS-Continued 

------------- 80 (a) (a) 25 (a) 60 (a) 0.5 

------------- 20 5 (a) 5 2 65 (a) (a) 

------------- 60 10 (a) 5 10 15 (a) (a) 

------------- 30 5 1 (a) 14 50 (a) (a) 

------------- 140 5 (a) 25 (a) 25 0.2 (a) 

------------- (a) 18 2 15 20 30 .1 .5 

------------- (a) 12 (a) 8 11 10 (a) (a) 

------------- 40 4 (a) 20 (a) 100 .2 (a) 

------------- 90 9 (a) 6 (a) (a) (a) (a) 

------------- (a) 5 (a) 6 14 200 (a) (a) 

------------- (a) 20 (a) (a) (a) 15 (a) (a) 

------------- (a) 18 (a) (a) 4 45 (a) .9 

-------------- (a) 15 2 55 10 150 (a) (a) 

CALIFORNIA-Continued 

-------------- (a) 2 (a) (a) 10 (a) --------------- (a) 

-------------- (a) (a) 3 (a) 4 (a) --------------- 0.7 

-------------- (a) 4 3 (a) 24 (a) --------------- .5 

-------------- {a) 6 (a) 1 34 30 --------------- 1.2 

-------------- 5 3 (a) (a) 13 10 '--------------- (a) 

-------------- (a) (a) (a) (a) 9 (a) --------------- .8 

-------------- (a) (a) (a) (a) (a) 20 --------------- .6 

-------------- (a) I (a) (a) 14 (a) --------------- (a) 

-------------- (a) 1 2 (a) 13 (a) --------------- 1.7 

-------------- (a) 4 (a) (a) 20 (a) --------------- .7 

-------------- (a) (a) (a) (a) (a) 50 --------------- .5 

-------------- {a) (a) (a) (a) (a) 35 --------------- .3 

-------------- (a) (a) (a) (a) (a) 10 --------------- 2.6 

-------------- (a) (a) (a) (a) (a) (a) --------------- 1.1 

-------------- (a) (a) (a) (a) (a) 20 --------------- 1.4 

-------------- (a) 2 (a) (a) 1 (a) --------------- (a) 

-------------- (a) 1 (a) (a) 1 (a) --------------- .7 

-------------- {a) (a) (a) (a) 2 10 --------------- 1.1 

-------------- (a) (a) (a) (a) 2 120 --------------- 6.0 

-------------- (a) 6 (a) (a) 30 (a) --------------- (a) 

-------------- (a) (a) 4 (a) (a) 10 --------------- .8 

-------------- (a) 5 (a) 1 16 60 --------------- .9 

-------------- 5 5 (a) 2.0 34 50 --------------- 1.3 

-------------- (a) (a) (a) (a) 1 (a) --------------- 2.9 

-------------- (a) 2 (a) (a) (a) --------------- (a) 

(hexavalent), cobalt, and lead; less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

11 
USGS 

station 

No. 

06707000 

06707455 

06720500 

06728855 

06752500 

07083000 

07099500 

07103355 

07105555 

07109155 

09022500 

09049155 

09153000 

09177100 

09352900' 

09346000 

09346400 

09349800 

09354500 

01122500 

01125500 

01184000 

01186240 

01187500 

01187870 

01189000 

01192700 

01193050 

01195320 

01195420 

Table I.-Reconnaissance of selected minor elements in 

No. on 

map and Location 

source 

CALIFORNIA-Continued 

26-MIC Mojave River below Victorville ..... --------------------------------

27-MIC San Gabriel River near Los Angeles--------------------------------

28-MIC Los Angeles River near Los Angeles·------------------------------

29-MIC Castro Creek at Richmond ... ·--------------------------------------

30~MIC Islais Creek Canal near San Francisco .....• ---------------------- .. 

31-MIC Coyote Creek near Alvis0-------------------------------------------

32-MIC Bulls Head Creek near Martinez ..... ------------------------------

COLORADO 

1-PWS North Fork South Platte River at South Platte .................. . 

2-PWS South Platte River above South Platte-----------------------------

3-MIC South Platte River at Henderson .... -------------------------------

4-MIC Boulder Creek below Boulder. .. ·----------------------------------

5-MIC Cache la Poudre River near GreeleY-------------------------------

6-BM Halfmoon Creek near Malta .... ------------------------------------

7-PWS Arkansas River above Water Works near Pueblo ................. . 

8-PWS Blue River Supply at Manitou Springs .... -------------------------

9-MIC Fountain Creek below Sewer Plant at Colorado Springs ........ . 

10-MIC Arkansas River at Highway 233 crossing near Vineland ........ . 

11-PWS East Portal of Moffat Tunnel near Tolland ...............•........ 

12-MIC Tenmile Creek above Highway Bridge at Frisco ................•. 

13-MIC Colorado River near Fruita·----------------------------------------

14-MIC San Miguel River below Uravan·-----------------------------------

15-BM Vallecito Creek near Bayfield .. ------------------------------------

16-PWS Navajo River near Edith--------------------------------------------

17 -PWS San Juan River near Carracas .. ------------------------------------

18-PWS Piedra River near Arboles ....... -----------------------------------

19-PWS Los Pinos River at La Boca .. --------------------------------------

CONNECTICUT 

2-MIC Shetucket River near Willimantic _________________________________ _ 

3-MIC Quinebaug River at Putnam ....•................................... 

4-BM Connecticut River at Thompsonville ....... -----------------------

5-MIC Still River near Winsted .. -------------------------------------------· 

6-PWS Barkhamsted Reservoir near Barkhamsted ....................... . 

7-PWS Nepaug Reservoir at Collinsville .........•...•...................... 

8-MIC Pequabuck River at Forestville ...............•..................... 

9-MIC Mattabesset River at East Berlin .••.••......••..................... 

10-MIC Connecticut River near Middle Haddam ..........•.........•..... 

11-PWS Lake Gaillard at North Branford. •......••...............•........ 

12-PWS Lake Saltonstall at East Haven ... -----·-·····-·-----------·-···---

Date of 

collection 

(1970) 

Oct. 7 

Oct. 7 

Oct. 7 

Oct. 8 

Oct. 8 

Oct. 9 

Oct. 9 

Oct. 6 

Oct. 6 

Oct. 7 

Oct. 13 

Oct. 13 

Oct. 9 

Oct. 7 

Oct. 13 

Oct. 13 

Oct. 7 

Oct. 13 

Oct. 26 

Oct. 15 

Oct. 15 

Oct. 12 

Oct. 12 

Oct. 12 

Oct. 12 

Oct. 12 

Oct. 1 

Oct. 1 

Oct. 9 

Oct. 1 

Oct. 8 

Oct. 8 

Oct. 1 

Oct. 1 

Oct. 1 

Oct. 14 

Oct. 14 

Discharge 

(cfs) 

20 

5.0 

4.0 

--------------

--------------

-------------- b.25 

--------------- 1.35 

538 

31 

--------------

-------------- 472 

13.2 

30 

810 

45.4 

23.4 

6,480 

205 

79 

--------------

--------------

--------------

--------------

107 

75 

9,930 

47 

--------------

-------------- 17 

19 

--------------

--------------

--------------

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

bEstimated. 

12 
surface waters of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

nexavalent (Hg) (percent) (As) (Cd) (Cr) (Co) (Pb) (Zn) Dissolved ·1 Total 

CALIFORNIA-Continued 

-------------- (a) 2 (a) (a) 12 (a) -------------- 0.8 

-------------- 10 2 (a) 1 13 (a) -------------- 1.5 

-------------- 10 (a) (a) (a) 5 10 -------------- 1.0 

-------------- (a) (a) (a) (a) (a) 15 -------------- 1.4 

-------------- (a) (a) (a) (a) (a) 15 -------------- 4.7 

-------------- (a) (a) (a) (a) (a) 30 -------------- 2.4 

-------------- 10 1 (a) (a) 1.5 60 ·-------------- 1.1 

COLORADO-Continued 

-------------- (a) (a) (a) (a) (a) 30 --------------- (a) 

-------------- (a) (a) (a) (a) (a) 20 --------------- (a) 

-------------- (a) 1 (a) (a) 14 40 --------------- 0.5 

-------------- (a) (a) (a) (a) (a) 30 --------------- .6 

-------------- (a) (a) (a) (a) (a) 5 --------------- (a) 

-------------- (a) 2 (a) (a) (a) 25 --------------- (a) 

-------------- (a) (a) (a) (a) 2 30 --------------- (a) 

-------------- (a) 1 (a) (a) 4 90 --------------- (a) 

-------------- (a) (a) (a) (a) (a) 140 --------------- (a) 

-------------- (a) (a) (a) (a) (a) 60 --------------- (a) 

-------------- (a) 1 (a) (a} (a) 20 --------------- (a) -------------- (a) 1 (a) (a) (a) 195 --------------- (a) -------------- 5 (a) (a) (a) (a) 20 --------------- (a) -------------- (a) 1 (a) (a) (a) 30 --------------- (a) 

-------------· (a) (a) (a) (a) (a) 40 --------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) --------------- (a) 

-------------- (a) (a) (a) 1 (a) (a) --------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) --------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) --------------- (a) 

CONNECTICUT -Continued 

88 (a) (a) (a) (a) 3 (a) (a) (a) 

94 (a) 1 (a) 2 3 (a) (a) (a) 

-------------- 10 1 1 1 10 10 (a) (a) 

-------------- 10 (a) 6 (a) 6 (a) (a) (a) 

-------------- (a) (a) 3 (a) 7 10 (a) (a) 

-------------- (a) (a) 3 1 2 (a) (a) (a) 

93 10 6 (a) (a) 8 390 (a) (a) 

99 (a) 3 2 1 2 30 (a) (a) 

--------------· (a) 9 (a) (a) 4 (a) (a) (a) 

-------------- (a) (a) 1 (a) (a) (a) (a) 

-------------- (a) (a) 2 (a) (a) (a) 0.7 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

13 
USGS 

station 

No. 

01196500 

01196625 

01196633 

01196636 

01196650 

01201485 

01202000 

01207500 

01208000 

01208500 

01208810 

01208830 

01208909 

01208919 

01482100 

01482800 

02232000 

02233500 

02245200 

02246500 

02283200 

02292900 

02296750 

02299800 

02301500 

02303000 

02310500 

02315520 

02324500 

02327100 

02329000 

Table !.-Reconnaissance of selected minor elements in 

No. on 

map and Location 

source 

CONNECTICUT -Continued 

13-MIC Quinnipiac River at Wallingford .....•........................•...• 

14-PWS Whitney Lake at New Haven ______________________________________ _ 

15-PWS Lake Watrous near Bethany _______________________________________ _ 

16-PWS Glen Dam Reservoir near Woodbridge ___________________________ _ 

17-PWS Lake Wintergreen at Woodbridge _________________________________ _ 

18-MIC Still River at Brookfield Junction _________________________________ _ 

19-PWS Shepaug Reservoir at Woodville ___________________________________ _ 

20-PWS Morris Reservoir near Thomaston ..•....••........•......•........ 

21-PWS Wigwam Reservoir near Thomaston ______________________________ _ 

22-MIC Naugatuck River at Beacon Falls _________________________________ _ 

23-PWS Trap Falls Reservoir near Huntington ....•....•...•.•••...•....•.. 

24-PWS Milford (Beaver Brook) Reservoir at Devon •.....•....•.•..•..... 

25-PWS Easton Reservoir near Easton •...•.•...•...••.........•.•.•••....•. 

26-PWS Hemlock Reservoir near Plattsville _______________________________ _ 

DELAWARE 

Date of 

collection 

(1970) 

Oct. 1 

Oct.·14 

Oct. 14 

Oct. 14 

Oct. 14 

Oct. 1 

Oct. 8 

Oct. 8 

Oct. 8 

Oct. 1 

Oct. 8 

Oct. 14 

Oct. 8 

Oct. 8 

1-MIC Delaware River at Delaware Memorial Bridge____________________ Oct. 8 

2-MIC Delaware River at Reedy Island Jetty_____________________________ Oct. 6 

3-MIC Red Clay Creek at Marshallton..................................... Oct. 23 

4-PWS Brandywine Creek above intake at Wilmington.................... Oct. 23 

DISTRICT OF COLUMBIA 

1-MIC Potomac River at Woodrow Wilson Bridge near 

Wash.,_D.C. 

FLORIDA 

1-PWS St. Johns River near Melbourne ................................... . 

2-MIC Econlockhatckee River near Chuluota •....•...•..................• 

3-MIC Rice Creek near Palatka ........................................ _ ...•• 

4-MIC St. Johns River at Jacksonville ..................................... . 

5-MIC Plantation Road Canal at S-33 near Ft. Lauderdale ..•..•....... 

6-PWS Caloosahatchee River near Olga at S-79 _________________________ _ 

7 -MIC Peace River at Arcadia ______________________________________________ _ 

8-MIC Phillippi Creek at Sarasota _________________________________________ _ 

9~MIC Alafia River at Lithia _______________________________________________ _ 

10-PWS Hillsborough. River near Zephy'rhills ______________________________ _ 

11-PWS Weekiwachee Springs near Brooksville .............................. . 

12-MIC Swift Creek at FaciL ................................................. . 13-MIC Fenholloway River at Foley _______________________________________ _ 

14-BM Sopchoppy River near Sopchoppy •....••..•...............••.••.•• 

15-MIC Ochlockonee River near Havana .•.•.•••..••.••..••.•........•.•.•.• 

Oct. 7 

Oct. 14 

Sept.22 

Sept.28 

Oct. 2 

Oct. 29 

Oct. 29 

Nov. 6 

Oct. 6 

Oct. 7 

Sept.23 

Oct. 1 

Oct. 6 

Nov. 10 

Nov. 12 

Nov. 12 

Discharge 

(cfs) 

65 

--------------

--------------

--------------

-------------- 24.3 

--------------

·-------------

-·------·----- 97 

--------------

------------·-

--------------

_______ ... ______ 

Tidal 

Tidal 

57 

830 

Tidal 

155 

------------- -654 

-------------

-------------

-------------

-------------

------------- 335 

102 

235 

24.6 

67.5 

119 

126 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

14 
surface waters of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved f Total 

CONNECTICUT -Continued 

85 (a) 2 2 (a) 2 20 (a) (a) 

-------------- (a) 1 (a) 1 (a) 10 (a) (a) 

-------------- (a) 1 1 2 2 (a) (a) (a) 

-------------- (a) 1 (a) 3 3 (a) (a) (a) 

-------------- 10 (a) (a) 1 1 (a) (a) (a) 

-------·------ 10 1 3 1 2 (a) (a) (a) 

-------------- (a) 1 2 (a) 4 (a) (a) (a) 

-------------- (a) (a) 1 (a) (a) 10 (a) (a) 

-------------- (a) 1 3 3 2 (a) (a) (a) 90 40 22 3 2 4 1,600 (a) (a) 

---------·---- (a) 1 3 (a) 3 (a) -----------·-- (a) -------------- 20 (a) (a) 1 1 10 (a) (a) 

-------------- (a) (a) 2 (a) 8 (a) (a) (a) -------------- (a) (a) 3 (a) 2 (a) (a) (a) 

DELAWARE-Continued 

-------------- (a) (a) (a) (a) 23 40 -------------- (a) 

-------·------ (a) (a) (a) 2 14 30 -------------· (a) 

45 (a) (a) (a) 1 12 400 -------------- (a) 

10 (a) (a) (a) (a) 2 10 -------------- (a) 

DISTRICT OF COLUMBIA-Continued 

-------------- (a) (a) (a) (a) (a) 110 -------------- (a) 

FLORIDA-Continued 

-------------- (a) (a) (a) 1 1 50 -------------- (a) 

-------------- (a) (a) 2 (a) 3 60 ------------·- (a) 

------------- 10 1 (a) 1 3 200 -------------- 0.9 

-----------·-- (a) (a) (a) (a) 2 60 --------------- .9 

--------·----- (a) (a) 1 (a) 4 50 ------·-------- (a) 

-------------- (a) (a) 1 1 1 40 --------------- 2.2 

-------------- (a) (a) (a) 1 3 50 -------------~- 1.1 

····---------- (a) (a) 1 (a) 1 80 --------------- .6 

-------------- (a) (a) 2 (a) 1 70 --------------- 1 

-------------- (a) (a) (a) (a) 1 90 -----------·-·· 1.1 

-------------- (a) (a) 1 (a) (a) 40 --------------- .9 

------·------- (a) (a) 1 (a) I 50 -----·--------- (a) 

-------------- 30 (a) 1 (a) (a) 65 --·--------·--- (a) 

-------------- 10 1 (a) (a) 1 70 -·--·-------·-- (a) 

·------------- (a) 1 1 4 30 --------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

15 
USGS 

station 

No. 

02376108 

02178400 

02212600 

02337000 

02337170 

02397000 

02387000 

02197500 

16210500 

16213000 

16232000 

16247100 

16264800 

16704000 

16717000 

12413300 

13060000 

13075910 

13093100 

13204300 

13206000 

13211440 

12416000 

Table I.-Reconnaissance of selected minor elements in 

No. on Date of 

map and Location collection 

source {1970) 

FLORIDA-Continued 

16-MIC Eleven Mile Creek near Ensley______________________________________ Sept. 23 

17-MIC Escambia Bay at Pensacola__________________________________________ Nov. 12 

GEORGIA 

1-BM Tallulah River near Clayton .......................................... . Oct. 

2-BM Falling Creek near Juliette __________________________________________ _ Oct. 

3-MIC Ocmulgee River near Warner Robins ______________________________ _ Oct 

4-PWS Ocmulgee River at Macon Intakes ______________________ , __________ _ Oct. 

5-PWS Chattahoochee River above Columbus .•••...•••••••...••••.•...••• Oct. 

6-MIC Chattahoochee River below Columbus ____________________________ _ Oct. 

7-PWS Chattahooch~e River at Atlanta ____________________________________ _ Oct. 

8-PWS Sweetwater Creek near AustelL •..•••.••••••..•.••..•••....•••••...• Oct. 

9-MIC Chattahoochee River near Fairborn _______________________________ _ Oct. 

10-MIC Flint River below Atlanta at Highway 138 _______________________ _ Oct. 

11-MIC South River below Atlanta at Highway 155 ______________________ _ Oct. 

12-PWS Oostanaula River near Rome _______________________________________ _ Oct. 

13-MIC Coosa River near Rome _____________________________________________ _ Oct. 

14-PWS Conasauga River at Tilton __________________________________________ _ Oct. 

15-PWS Hartwell Reservoir at Spillway _____________________________________ _ Oct. 

16"-PWS Savannah River above Augusta _____________________________________ _ Oct. 

17-MIC Savannah River at Burtons Ferry Bridge near Millhaven _________ _ Oct. 

HAWAII 

1-MIC Kaukonahua Stream at Waialua_____________________________________ Oct. 

2-MIC Waikele Stream at Waipahu__________________________________________ Oct. 

3-PWS Nuuanu Stream near Honolulu______________________________________ Oct. 

4-MIC Manoa-Palolo Drainage Canal at Mailiila ___________________________ Oct. 

5-MIC Kawainui Drainage Canal at Kailua_________________________________ Oct. 

6-PWS Wailuku River at Piihonua___________________________________________ Oct. 

7-BM Honolii Stream near Papaikou ______________________________________ . Oct. 

8-MIC Kalihi Stream at mouth on Nimitz Highway Bridge______________ Oct. 

IDAHO 

1-MIC South Fork Coeur d'Alene River at Smelterville __________________ Oct. 

2-MIC Snake River near Shelley ______________ ----------------------------•• Oct. 

3-MIC Portneuf River near Tyhee _____________ ----------------------------- Oct. 

4-MIC Rock Creek at mouth near Twin Falls _____________________________ Oct. 

5-PWS Boise River above pump station near Boise _______________________ Oct. 

6-MIC Boise River at Strawberry Glen Bridge near Boise ________________ Oct. 

7-MIC Indian Creek at Caldwell _____________________________________________ Oct. 

8-BM Hayden Creek below North Fork near Hayden Lake .••••••••••••. Oct. 

14 

15 

15 

15 

15 

15 

13 

13 

13 

16 

16 

14 

14 

14 

9 

12 

12 

7 

7 

7 

7 

7 

13 

13 

7 

8 

6 

6 

19 

8 

9 

23 

21 

Discharge 

(cfs) 

65.1 

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

-------------- 11,000 

b1 

-------------- 2.4 

12.9 

-------------- 36.4 

19.0 

--------------

106 

--------------

--------------

-------------- 702 

--------------

-------------- 5.6 

aLess than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

bEstima ted. 

16 
surface waters of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved ( Total 

FLORIDA-Continued 

--------------- 10 (a) 2 2 1 110 -------------- (a) 

--------------- (a) (a) 2 1 1 55 -------------- (a) 

GEORGIA-Continued 

-------------- 45 1 (a) (a) 18 10 -------------- (a) 

-------------- (a) (a) (a) (a) 13 30 -------------- (a) 

-------------- 20 (a) (a) (a) 14 20 -------------- (a) 

-------------- 20 1 1 (a) 15 310 -------------- (a) 

-------------- (a) 1 (a) (a) 29 60 --------------- (a) 

-------------- 25 (a) 1 (a) 6 20 --------------- (a) 

-------------- (a) 1 1 (a) 23 20 --------------- (a) 

-------------- 30 5 (a) 2 22 150 --------------- (a) 

-------------- (a) 2 (a) 44 50 --------------- (a) 

-------------- 20 1 3 1 12 30 --------------- (a) 

-------------- 10 (a) 5 2 9 80 --------------- (a) 

-------------- 20 1 (a) (a) 32 130 --------------- (a) 

-------------- 20 (a) 1 (a) 20 60 --------------- (a) 

-------------- 20 2 (a) 1 14 120 --------------- (a) 

-------------- (a) (a) 1 (a) (a) 20 --------------- (a) 

-------------- (a) (a) 1 1 (a) 10 --------------- (a) 

-------------- (a) (a) (a) (a) 30 --------------- (a) 

HAW All-Continued 

-------------- (a) (a) (a) (a) (a) (a) --------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) --------------- 0.7 

-------------- (a) (a) (a) (a) (a) 10 --------------- .6 

-------------- (a) (a) (a) (a) (a) (a) --------------- (a) 

-------------- (a) (a) (a) (a) (a) 20 --------------· (a) 

-------------- (a) (a) (a) (a) (a) (a) -----------···· (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- 1.2 

-------------- (a) (a) (a) (a) (a) 20 -------------- 1.0 

IDAHO-Continued 

-------------- 30 21 (a) 14 5 19,000 ------------... 6.8 

-------------- (a) (a) (a) (a) 3 (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------.. 1.1 

-------------- 10 (a) (a) (a) 2 (a) ------.... ----- .5 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) 10 -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) 3 60 -------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

17 
Table I.-Reconnaissance of selected minor elements in 

USGS No. on Date of Discharge station map and Location collection (cfs) 

No. source (1970) 

ILLINOIS 

03339000 1-MIC Vermilion River near Danville.------------------------------------- Oct. 8 560 

04087415 2-PWS Lake Michigan at Evanston Water Works __________________________ Oct. 7 --------------- 04087430 3-PWS Lake Michigan at Chicago Water Works·--------------------------- Oct. 7 --------------- 04091000 4-MIC Little Calumet River at South Holland ____________________________ Oct. 7 60 

05435500 5-MIC Pecatonica River at Freeport.·-------------------------------------- Oct. 6 550 

05443500 6-MIC Rock River near Como·--------------------------------------------- Oct. 6 5,350 

05532500 7-MIC Des Plaines River at Riverside·-------------------------------------- Oct. 7 580 

05540500 8-MIC Du Page River at Shorewood·--------------------------------------- Oct. 8 170 

05543500 9-MIC Illinois River at Marseilles·------------------------------------------ Oct. 8 6,650 

05550000 10-MIC Fox River at Algonquin _____________________________________________ Oct. 7 740 

05559900 11-PWS Ill~nois River at Peoria Water Co., Peoria __________________________ Oct. 6 --------------- 05568500 12-MIC Illinois River at Kingston Mines·----------------------------------- Oct. 6 22,100 

05576200 13-MIC Lake Springfield at Springfield Water Works.--------------------- Oct. 5 --------------- 05583000 14-MIC Sangamon River near Oakford·------------------------------------- Oct. 6 2,050 

05595000 15-MIC Kaskaskia River at New Athens------------------------------------- Oct. 5 490 

05599500 16-MIC Big Muddy River at Murphysboro·--------------------------------- Oct. 5 650 

-------r------ 17-MIC Ohio River at Lock and Dam 53 near Grand Chain ______________ Oct. 7 --------------- 07001000 18-PWS Mississippi River at East St. Louis--------------------------------- Oct. 13 298,000 

07020500 19-MIC Mississippi River at Chester·---------------------------------------- Oct. 14 312,000 ---

INDIANA 

03276700 I-BM South Hogan Creek near Dillsboro·-------------------------------- Oct. 13 16 

03292000 2-MIC Ohio River near Madison·------------------------------------------- Oct. 8 --------------- 03322000 3-PWS Ohio River at Evansville, waterplanL------------------------------ Oct. 13 4,800 

03322150 4-MIC Ohio River at navigation light on old Henderson Road __________ Oct. 13 48,000 

03322200 5-MIC Ohio River at Dam 48------------------------------------------------ Oct. 13 48,000 

03333700 6-MIC Wildcat Creek at Kokomo·------------------------------------------ Oct. 12 175 

03335680 7-MIC Wabash River at bridge near Westpoint. ___________________________ Oct. 14 3,900 

03341560 8-MIC Wabash River at Dresser powerplant near Terre Haute ___________ Oct. 13 6,400 

03351050 9-PWS White River Canal at College Ave. in Indianapolis ________________ Oct. 12 b6o 

03352700 10-PWS Fall Creek at Keystone Ave. bridge in Indianapolis _______________ Oct. 12 70 

03353625 11-MIC White River below mouth of Eagle Creek at 1-465 bridge __ , _____ Oct. 12 b6oo 

03353660 12-MIC White River at Waverly----------------------------------------------- Oct. 12 b750 

03372650 13-MIC Clear Creek below treatment plant near Bloomington ____________ Oct. 12 b4 

04087600 14-MIC Little Calumet River at Munster------------------------------------ Oct. 13 26 

04092390 15-MIC Grand Calumet River at Hohman Street bridge at Hammond ___ Oct. 13 b4o 

04092600 16-PWS Lake Michigan at filtration plant at Whiting _______________________ Oct. 13 ---------------- 04092700 17-.::_MIC Industrial Canal at 151 Street bridge at E. Chicago _______________ Oct. 13 b8oo 

04092800 18-PWS Lake Michigan at filtration plant at Gary·------------------------- Oct. 13 ---------------- 04101400 19-MIC St. Joseph River at Bertrand, Mich.-------------------------------- Oct. 13 ---------------- 04180600 20-PWS St. Joseph River at filtration plant at Ft. Wayne __________________ Oct. 12 ---------------- 04183000 21-MIC Maumee River at New Haven·--------------------------------------· Oct. 12 175 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

bEstimated. 

18 
surface waters of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved I Total 

ILLINOIS-Continued 

37 (a) 3 (a) (a) 16 30 -------------- (a) 

-------------- (a) (a) 1 1 3 130 -------------- (a) 

-------------.. (a) (a) 1 1 5 40 -------------- 1.4 

53 10 1 1 1 5 50 -------------- (a) 

55 (a) (a) 1 2 11 80 -------------- (a) 

30 10 1 1 1 10 60 -------------- (a) 

18 (a) (a) (a) 5 40 -------------- (a) 

34 (a) 1 1 1 11 30 -------------- (a) 

57 (a) 1 1 1 11 50 -------------- (a) 

33 (a) (a) . 1 1 10 50 -------------- .8 

-------------- (a) (a) (a) 1 4 50 -------------- (a) 

18 10 1 1 1 10 30 -------------- .9 

-------------- (a) (a) 1 (a) 10 100 -------------- (a) 

39 (a) (a) 1 1 10 170 -------------- (a) 

71 (a) (a) 1 1 12 20 -------------- (a) 

38 (a) (a) (a) 1 3 10 -------------- (a) 

-------------- (a) 15 (a) (a) 3 (a) (a) ---------- 1-2 yr. high 10 16 (a) 4 7 (a) (a) ---------- 1-2 yr. high 20 12 (a) 8 25 (a) (a) ----------

INDIANA-Continued 

-------------- (a) (a) 1 (a) 5 60 (a) (a) 

-------------- (a) (a) (a) 12 6 10 (a) 0.5 

-------------- 10 (a) 1 (a) 1 (a) -------------- (a) 

-------------- (a) (a) 1 (a) 5 20 0.5 (a) 

-------------- (a) (a) 1 (a) 10 20 (a) -------------- -------------- (a) 3 1 4 9 220 (a) (a) 

-------------- (a) (a) 1 1 5 190 .5 (a) 

-------------- (a) 1 (a) (a) 1 10 (a) (a) 

-------------- (a) (a) 1 (a) 9 50 (a) (a) 

-------------- (a) (a) (a) (a) 5 100 (a) (a) 

-------------- (a) (a) 1 (a) 4 110 (a) (a) 

-------------- 10 1 (a) (a) 1 (a) (a) (a) 

-------------- (a) (a) (~) (a) 9 100 (a) (a) 

-------------- 10 (a) 1 (a) (a) 60 -------------- (a) 

-------------- 10 1 1 1 15 60 (a) (a) 

-------------- (a) (a) (a) (a) 1 60 (a) (a) 

-------------- (a) (a) (a) (a) 10 130 .6 (a) 

-------------- (a) (a) 1 (a) 1 (a) (a) .8 

-------------- (a) (a) 1 (a) 1 100 (a) (a) 

-------------- (a) (a) (a) (a) 3 90 (a) (a) 

-------------- (a) 4 (a) (a} 3 50 (a) (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

19 
USGS 

station 

No. 

05414700 

05422620 

05448090 

05451820 

05464020· 

05464670 

05480600 

05485520 

05489620 

06600530 

06897950 

06891000 

06892500 

07143330 

07144200 

07144550 

07187600 

07147500 

06898990 

07144790 

---------------

06821265 

06821265 

03216600 

03294500 

02490193 

07344480 

Table I.-Reconnaissance of selected minor elements in 

No. on 

map and Location 

source 

IOWA 

1-MIC Mississippi River below Dubuque·----------------------------------

2-PWS Mississippi River at Davenport_ ________________________________ -----

3-MIC Mississippi River below Davenport_ _______________________________ _ 

4-MIC Iowa River near Tama, below Marshalltown ______________________ _ 

5-MIC Cedar River at Gilbertville bridge, below Waterloo ______________ _ 

6-MIC Cedar River below Cedar Rapids _______________ --------------------

7-MIC Des Moines River below Ft. Dodge ________________________________ _ 

8-MIC Des Moines River below Des Moines _______________________________ _ 

9-MIC Des Moines River at Cliffland bridge, below Ottumwa __________ _ 

10-MIC Missouri River below Sioux CitY------------------------------------

11-BM Elk Creek near Decatur CitY-----------------------------------------

KANSAS 

1-MIC Kansas River at Lecompton·----------------------------------------

2-MIC Kansas River at Bonner Springs-------------------------------------

3-MIC Arkansas River near Hutchinson ______________________ n _____________ 

4-MIC Little Arkansas River at Valley Center _____________________________ 

5-MIC Arkansas River at Derby---------------------------------------------

6-MIC Spring River near Baxter Springs·-----------------------------------

7-MIC Walnut River near Douglass __________________________________________ 

8-PWS Kansas River at Topeka Water PlanL-------------------------------

9-PWS Cheney Reservoir near Cheney-------------------------------------_ 

10-PWS City of Wichita well field _____ ----- __ ---------------------------------

11-PWS Missouri River at intake to Kansas City powerplant_ ______________ 

12-MIC Missouri River below Kansas City powerplant_ ____________________ 

KENTUCKY 

Date of 

collection 

(1970) 

Oct. 9 

Oct. 7 

Oct. 7 

Oct. 6 

Oct: 8 

Oct. 6 

Oct. 8 

Oct. 6 

Oct. 1 

Oct. 9 

Oct. 1 

Oct. 12 

Oct. 14 

Oct. 6 

Oct. 6 

Oct. 7 

Oct. 12 

Oct. 14 

Oct. 12 

Oct. 7 

Oct. 7 

Oct. 14 

Oct. 14 

1-MIC Ohio River Greenup Dam·------------------------------------------- Oct. 8 

2-PWS Kentucky River at Lexington·--------------------------------------- Oct. 22 

3-MIC Elkhorn Creek near FrankforL-------------------------------------- Oct. 5 

4-PWS Ohio River at Louisville·--------------------------------------------- Oct. 5 

5-MIC Ohio River at Louisville·--------------------------------------------- Oct. 23 

6-MIC Salt River at mouth near Louisville_________________________________ Oct. 5 

7-MIC Ohio River at Owensboro____________________________________________ Oct. 9 

8-MIC Tennessee River near Paducah--------------------------------------- Oct. 6 

LOUISIANA 

1-MIC Pearl River at Pools Bluff Sill near Bogalusa_______________________ Oct. 29 

2-PWS Cross Lake at ShreveporL-------------------------------------------- Oct. 20 

Discharge 

(cfs) 

23,000 

19,000 

24,000 

200 

930 

1,300 

210 

350 

3,100 

41,000 

5.2 

3,950 

5,050 

285 

·930 

390 

650 

250 

---------------

---------------

---------------

---------------

---------------

50,000 

1,600 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

bEstimated. 

20 
surface waters of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved J Total 

IOWA-Continued 

-------------- (a) (a) (a) (a) (a) 40 -------------- (a) 

-------------- (a) (a) (a) (a) (a) 40 -------------- 1.4 

-------------- (a) (a) (a) (a) (a) 50 -------------- (a) 

63 (a) (a) (a) (a) (a) 10 -------------- (a) 

64 (a) (a) (a) (a) (a) 40 -------------- 1.8 

63 (a) (a) (a) (a) (a) 20 -------------- (a) 

66 (a) (a) (a) (a) (a) 30 -------------- (a) 

85 (a) (a) (a) (a) (a) 20 -------------- (a) 

40 (a) (a) (a) (a) (a) 20 -------------- (a) 

-------------- (a) (a) (a) (a) (a) 30 -------------- .8 

b6o (a) (a) (a) (a) (a) (a) -------------- (a) 

KANSAS-Continued 

-------------- (a) (a) (a) (a) 3 30 -------------- 1.8 

-------------- {a) 1 (a) (a) 2 10 -------------- .6 

-------------- {a) (a) (a) (a) 5 200 -------------- 2.1 

-------------- {a) (a) (a) (a) 6 60 --- ----------- 3.7 

-------------- (a) (a) (a) (a) (a) 65 -------------- 4.3 

-------------- {a) 4 (a) (a) (a) 610 -------------- 1 

-------------- {a) (a) (a) (a) (a) 20 -------------- 1.1 

-------------- {a) 1 (a) (a) {a) 40 -------------- .5 

-------------- (a) (a) (a) (a) (a) 50 -------------- 1.4 

-------------- (a) (a) (a) (a) (a) 70 -------------- 2.6 

-------------- {a) 1 (a) (a) 6 40 -------------- .5 

-------------- (a) 2 (a) (a) 5 40 -------------- .6 

KENTUCKY -Continued 

-------------- {a) {a) (a) (a) 20 10 -------------- 0.4 

-------------- {a) 5 (a) 8 5 55 (a) (a) 

-------------- (a) (a) (a) 6 (a) 65 0.1 1.1 

-------------- {a) 3 2 10 10 140 (a) .3 

-------------- 70 20 (a) (a) 2 190 .1 ---------- -------------- (a) (a) (a) 20 5 120 (a) (a) 

-------------- (a) 10 (a) 16 10 5 .6 .8 

-------------- 10 (a) (a) 2 4 (a) (a) (a) 

LOUISIANA-Continued 

-------------- 10 7 (a) 10 5 (a) (a) (a) 

-------------- 10 16 (a) 4 2 (a) (a) (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

21 
USGS 

station 

No. 

07348500 

07349500 

07355600 

07366500 

07371600 

07367000 

07373000 

07374500 

08017090 

01021000 

01048500 

01054200 

01059000 

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

--------------

01095450 

01096550 

Table I.-Reconnaissance of selected minor elements in 

No. on Date of 

map and Location collection 

source {1970) 

LOUISIANA-Continued 

3-MIC Red River at Shreveport______________________________________________ Oct. 19 

4-MIC Bodcau Bayou near Sarepta·----------------------------------------- Oct. 20 

5-MIC Red River at Monda__________________________________________________ Oct. 19 

6-PWS Bayou Desiard at Monroe·------------------------------------------- Oct. 21 

7-MIC Dugdemona River near Dodson·------------------------------------ Oct. 20 

8-MIC Ouachita River at Monroe-------------------------------------------- Oct. 21 

9-BM Big Creek at Pollock-------------------------------------------------- Oct. 22 

10-MIC Mississippi River near New Orleans __________ _._______________________ Oct. 20 

11-MIC Mississippi River at Belle Chasse------------------------------------- Oct. 20 

12-PWS Atchafalaya River at Morgan CitY---------------------------------- Oct. 27 

13-MIC Calcasieu River near Sulphur----------------------------------------- . Oct. 20 

MAINE 

1-MIC Aroostook River near Ft. Fairfield·---------------------------------

2-MIC St. Croix River at Baring·--------------------------------------------

3-MIC Penobscot River at Oron0--------------------------------------------

4-MIC Kennebec River at Waterville·---------------------------------------

5-BM Wild River at Gilead·--------------------------------------------------

6-MIC Androscoggin River near Auburn·-----------------------------------

7-PWS Sebago Lake near North Windham·---------------------------------

MARYLAND 

1-PWS Susquehanna River at Conowingo Reservoir-----------------------

2-PWS Gunpowder Falls at Loch Raven Reservoir at Parkville ___________ 

3-MIC Back River at Essex near Porter Bar·--------------------------------

4-MIC Middle Branch Patapsco River at Route 2 at Baltimore ___________ 

5-PWS North Branch Patapsco River at Liberty Reservoir near 

Marriotsville. 

6-PWS Patuxent River at T. Howard Duckett Reservoir near LaureL ____ 

7-MIC North Branch Potomac River at Westernport_ _____________________ 

8-MIC North Branch Potomac River at Cumberland Fairgrounds ________ 

9-PWS Evitts Creek at Cumberland municipal supply intake at 

Lake Gordon. 

10-PWS Potomac River above Conococheague Creek near Williamsport.. 

11-MIC Antietam Creek at Alternate Rte. 40 at Funkstown ...... ----------

12-MIC Monocacy River above Linganore Creek near Frederick __________ 

13-PWS Potomac River at Great Falls-----------------------------------------

MASSACHUSETTS 

Oct. 12 

Oct. 20 

Oct. 14 

Oct. 14 

Oct. 12 

Oct. 15 

Oct. 12 

Oct. 22 

Oct. 12 

Oct. 12 

Oct. 9 

Oct. 12 

Oct. 16 

Oct. 5 

Oct. 8 

Oct. 5 

Oct. 19 

Oct. 5 

Oct. 19 

Oct. 16 

1-PWS Wachusett Reservoir near Clinton____________________________________ Oct. 8 

2-PWS Merrimack River above LowelL______________________________________ Oct. 14 

Discharge 

(cfs) 

35,400 

409 

28,400 

-0 

38 

3,400 

16 

328,000 

328,000 

183,000 

1,800 

3,000 

1,070 

6,100 

4,000 

28 

3,240 

---------------

------------··-

--------------- Tidal 

---------------

---------------

--------------- 126 

110 

---------------

730 

91 

123 

2,600 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

22 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

hexavalent (Hg) (percent) (As) (Cd) (Cr) (Co) (Pb) (Zn) Dissolved -, Total 

LOUISIANA-Continued 

--------------- 10 8 (a) (a) 4 25 (a) (a) 

--------------- 20 10 (a) 10 (a) 200 (a) (a) 

--------------- (a) 14 (a) s (a) (a) (a) (a) 

--------------- 10 8 (a) (a) 4 (a) (a) (a) 

--------------- 10 10 (a) s 2 40 (a) (a) 

--------------- (a) 8 2 (a) 7 (a) (a) (a) 

--------------- 10 10 (a) (a) (a) 55 (a) (a) 

--------------- (a) 6 (a) (a) (a) (a) (a) 0.7 

--------------- 10 6 (a) (a) (a) (a) (a) (a) 

--------------- 20 8 2 22 s s (a) (a) 

--------------- (a) 30 3 (a) (a) 10 0.8 1.0 

MAINE-Continued 

30 (a) 2 (a) 1 s 20 (a) (a) 

85 20 22 (a) 4 890 230 (a) (a) 

80 (a) 1 (a) 2 s (a) (a) (a) 

so (a) 1 (a) 1 11 80 (a) (a) 

75 (a) 2 (a) 1 25 10 (a) 0.6 

75 10 s 1 2 8 (a) (a) (a) 

--------------- (a) 3 (a) 2 s (a) (a) (a) 

MARYLAND-Continued 

--------------- 10 (a) (a) (a) (a) 10 ------------ (a) 

--------------- 10 (a) (a) (a) (a) (a) ------------ (a) 

--------------- (a) (a) (a) (a) (a) s ------------ (a) 

--------------- 30 (a) (a) (a) (a) 40 ------------ (a) 

--------------- 10 (a) (a) (a) (a) (a) ------------ (a) 

--------------- (a) (a) (a) (a) (a) (a) ------------- (a) 

80 10 (a) (a) 4 (a) 130 ------------- (a) 

90 (a) (a) 10 23 (a) 170 ------------- (a) 

--------------- (a) (a) (a) (a) (a) 60 ------------- (a) 

70 (a) (a) (a) (a) (a) 10 --------·---- (a) 

70 (a) (a) (a) (a) 6 10 ------------- (a) 

85 (a) (a) (a) (a) (a) 10 ------------- (a) 

75 (a) (a) (a) (a) (a) 10 ------------- (a) 

MASSACHUSETTS-Continued 

--------------- (a) (a) (a) (a) 4 10 (a) 0.5 

--------------- (a) (a) (a) 3 9 20 (a) (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

23 
USGS 

station 

No. 

01097490 

01100000 

01100750 

01102200 

01103020 

01107240 

01109110 

01109550 

01110500 

01175000 

01182500 

01197500 

04001000 

04045580 

04045590 

04062360 

04106600 

04108890 

04112560 

04119200 

04148495 

04156200 

04157050 

04159130 

04165700 

04168555 

04168649 

04168670 

04174890 

04175515 

04176550 

04015380 

04024000 

04024040 

05124480 

05129400 

Table I.-Reconnaissance of selected minor elements in 

No. on Date of 

map and Location collection 

source (1970) 

MASSACHUSETTS-Continued 

3-PWS Sudbury Reservoir near Framingham _______________________________ Oct. 8 

4-MIC Merrimack River below Concord River at Lowell _________________ Oct. 16 

5-MIC Merrimack River at West NewburY---------------------------------- Oct. 14 

6-PWS Breeds Pond Reservoir at Lynn·------------------------------------- Oct. 9 

7-PWS Fresh Pond Reservoir at Cambridge _________________________________ Oct. 7 

8-PWS Little Quittacas Pond near Rochester _______________________________ Oct. 12 

9-PWS North Watuppa Pond near Fall River------------------------------- Oct. 12 

10-PWS Holden Reservoir near Holden _______________________________________ Oct. 9 

11-MIC Blackstone River at Northbridge------------------------------------ Oct. 9 

12-PWS Quabbin Reservoir near West Ware---------------------------------- Oct. 8 

13-PWS Cobble Mountain Reservoir near Westfield _________________________ Oct. 9 

14-MIC Housatonic River at Great Barrington------------------------------ Oct. 9 

MICHIGAN 

1-BM Washington Creek at Windigo---------------------------------------- Oct. 15 

2-PWS St. Marys River at Sault Ste. Marie---------------------------------- Oct. 21 

3-MIC St. Marys River near Sault Ste. Marie_______________________________ Oct. 21 

4-MIC Michigamme River near Witbeck------------------------------------ Oct. 20 

5-MIC Kalamazoo River at Parchment-------------------------------------- Oct. 22 

6-PWS Lake Michigan near Agnew------------------------------------------- Oct. 22 

7-MIC Red Cedar River at Lansing·----------------------------------------- Oct. 23 

8-MIC Grand River at Grandville____________________________________________ Oct. 22 

9-MIC Flint River at Third Ave. bridge at FlinL--------------------------- Oct. 15 

10-MIC Tittabawasse River at Mapleton-------------------------------------- Oct. 23 

11-MIC Saginaw River at mouth near Alpin Beach-------------------------- Oct. 15 

12-PWS St. Clair River at Port Huron.·---------------------------------------- Oct. 19 

13-PWS Detroit River at DetroiL---------------------------------------------- Oct. 16 

14-MIC River Rouge cutoff canal at Zug Island ______________________________ Oct. 14 

15-MIC Detroit River, Trenton Channel at Swan Island-------------------- Oct. 14 

16-MIC Detroit River Livingstone Channel below Amherstburg, Oct. 14 

Ontario. 

17-MIC Ford Lake, Huron River, at Ypsilanti ------------------------------- Oct. 14 

18-PWS Lake Erie near Pointe Aux Peaux ------------------------------------ Oct. 14 

19-MIC River Raisin at mouth near Monroe __________________________________ Oct. 14 

MINNESOTA 

1-PWS Lake Superior at Duluth---------------------------------------------- Oct. 20 

2-MIC St. Louis River at Scanlon-------------------------------------------- Oct. 19 

3-MIC St. Louis River below Morgan Park at Duluth---------------------- Oct. 19 

4-BM Kawishiwi River near Ely--------------------------------------------- Oct. 21 

5-MIC Rainy Lake at International Falls------------------------------------ Oct. 6 

Discharge 

(cfs) 

----------------

----------------

----------------

----------------

----------------

----------------

----------------

---------------- 392 

----------------

----------------

----------------

5.68 

115 

690 

420 

1,220 

1,220 

124 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

b Estimated. 

24 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) {As) {Cd) hexavalent (Co) {Pb) (Zn) (Hg) 

(Cr) Dissolved 1 Total 

MASSACHUSETTS-Continued 

--------------- (a) 1 (a) 4 20 (a) 0.6 

--------------- (a) 6 {a) 4 12 40 ---·--------- (a) 

--------------- (a) 1 (a) 4 5 70 (a) (a) 

--------------- (a) (a) 1 (a) 3 20 (a) (a) 

--------------- (a) (a) 1 1 4 20 (a) .6 

--------------- (a) 3 (a) 2 6 (a) (a) (a) 

--------------- (a) 2 (a) 2 7 (a) (a) (a) 

--------------- (a) (a) (a) 9 20 (a) .5 

--------------- 10 1 17 17 220 (a) (a) 

--------------- (a) (a) 2 (a) (a) .6 

--------------- (a) 1 (a) 7 (a) (a) .6 

--------------- (a) (a) (a) 4 30 (a) (a) 

MICHIGAN-Continued 

Base 10 1 (a) (a) 2 120 (a) {a) 

Average 20 (a) (a) (a) 6 100 (a) (a) 

Average 10 1 (a) 1 5 110 (a) {a) 

High base 10 (a) (a) (a) 5 120 (a) (a) 

Above average 20 1 (a) (a) 5 200 0.1 (a) 

--------------- 10 (a) (a) (a) 7 70 .2 0.7 

High base 10 1 (a) (a) 4 130 .1 (a) 

Low base (a) (a) (a) (a) 2 100 .1 .7 

Low base 10 1 (a) (a) 3 60 .4 (a) 

Low base 10 (a) {a) (a) 2 70 .1 .8 

Average (a) (a) (a) (a) 2 110 .2 (a) 

--------------- {a) (a) (a) (a) 5 160 (a) (a) 

--------------- (a) (a) {a) (a) 4 10 (a) (a) 

Above average (a) (a) (a) (a) 4 90 (a) (a) 

--------------- 10 (a) {a) (a) 4 30 .2 .6 

--------------- 10 1 (a) (a) 2 120 .2 (a) 

--------------- (a) (a) (a) (a) 3 100 .1 (a) 

--------------- (a) 1 (a) (a) 3 110 .1 (a) 

Average 30 (a) (a) 4 160 (a) (a) 

MINNESOTA-Continued 

--------------- (a) 1 (a) (a) (a) 80 -------------- (a) 

--------------- (a) (a) (a) (a) (a) 20 -------------- 0.6 

--------------- (a) (a) (a) (a) 17 40 -------------- (a) 

--------------- ('!) (a) (a) (a) {a) 20 -------------- (a) 

--------------- (a) (a) (a) (a) (a) 310 -------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

25 
USGS 

station 

No. 

05129500 

05270600 

05270700 

05288500 

05330910 

05331580 

05373000 

05376000 

02435500 

02441500 

02473360 

02474500 

02476600 

02479155 

02480207 

02485740 

02486500 

07287010 

05495150 

06818000 

06935840 

07019045 

07020850 

07052250 

07186600 

05014500 

06062010 

06090130 

06214501 

06217500 

Table I.--Reconnaissance of selected minor elements in 

No. on Date of 

map and Location collection 

source (1970) 

MINNESOTA-Continued 

6-MIC Rainy River at International Falls. ___________________________________ Oct. 

7-MIC Mississippi River at Sauk Rapids ___ ----- ____________ ---- ________ ----- Oct. 

8-MIC Mississippi River at St. Cloud---------------------------------------- Oct. 

9-PWS Mississippi River near Anoka.---------------------------------------- Oct. 

10-MIC Minnesota River at Bloomington------------------------------------ Oct. 

11-MIC Mississippi River below Lock and Dam 2 at Hastings ______________ Oct. 

12-MIC S.F. Zumbro River near Rochester---------------------------------- Oct. 

13-BM N.F. Whitewater River near Elba------------------------------------ Oct. 

MISSISSIPPI 

1-MIC Oldtown Creek at Verona-------------------------------------------- Oct. 

2-MIC Tombigbee River below Columbus---------------------------------- Oct. 

3-MIC Leaf River at Mahned ------------------------------------------------- Oct. 

4-MIC Tallahala Creek at Ellisville-------------------- ________ ----------- ____ Oct. 

5-MJC Okatibbee Creek at Arundel_ __ -------- ____________ ------- ___ --------- Oct. 

6-BM Cypress Creek near Janice-------------------------------------------- Oct. 

7-MIC Escatawpa River at Moss Point_ __________________________________ ---- Oct. 

8-PWS Pearl River at Jackson, Highway 25·-------------------------------- Oct. 

9-MIC Pearl River at Byram _____________ ------------------------------------- Oct. 

10-MIC Yazoo River at Ft. Loring-------------------------------------------- Oct. 

MISSOURI 

1-MIC Mississippi River at Canton------------------------------------------- Oct. 

2-PWS Missouri River at St. Joseph·----------------------------------------- Oct. 

3-MIC Missouri River at WinthroP------------------------------------------- Oct. 

4-PWS Missouri River at Kansas CitY----------------------------------------- Oct. 

5-MIC Missouri River at Lexington·----------------------------------------- Oct. 

6-PWS Mississippi River at St. Louis at Chain of Rocks plant intake_____ Oct. 

7-PWS Missouri River near St. Louis at Howard Bend plant intake------ Oct. 

8-PWS Meramec River at Paulina Hills--------------------------------------- Oct. 

9-PWS Mississippi River at Cape Girardeau._________________________________ Oct. 

1 0-MIC Mississippi River at Cottonwood PoinL----------------------------- Oct. 

11-PWS McDaniel Lake at Springfield ---------------------------------------- coct. 

12-MIC James River near Boaz ------------------------------------------------ Oct. 

13-MIC Turkey Creek near Joplin -------------------------------------------- Oct. 

MONTANA 

I-BM Swiftcurrent Creek at Many Glacier. ________________________________ Oct. 

2-MIC Prickly Pear Creek below East Helena·------------------------------ Oct. 

3-MIC Missouri River below Rainbow Dam near Great Falls------------- Oct. 

4-PWS Yellowstone River at Billings ______ ----- ____ ------- ___ -------- ___ ----- Oct. 

5-MIC Yellowstone River at Huntley_-------------- _________ ---- ___ --------- Oct. 

6 

13 

13 

13 

28 

6 

15 

15 

7 

7 

6 

6 

6 

7 

7 

7 

7 

6 

12 

14 

14 

5 

13 

13 

14 

15 

14 

19 

19 

14 

2 

9 

13 

8 

8 

Discharge 

(cfs) 

8,200 

2,200 

2,200 

3,460 

2,520 

3,100 

188 

30.2 

---------------

---------------

---------------

---------------

---------------

---------------

---------------

---------------

---------------

---------------

77,700 

53,500 

54,000 

54,000 

60,000 

298,000 

155,000 

43,000 

319,000 

---------------

--------------- 540 

38 

60 

---------------- 6,000 

5,100 

5,100 

aLess than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

csample obtained for mercury Jan. 29, 1971. 

26 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

hexavalent (Hg) (percent) (As) (Cd) (Cr) (Co) (Pb) (Zn) Dissolved -~ Total 

MINNESOTA-Continued 

70 10 (a) (a) (a) (a) 20 -------------- (a) 

--------------- (a) (a) (a) (a) (a) 20 -------------- (a) 

--------------- (a) 1 (a) (a) (a) 20 -------------- (a) 

--------------- (a) 1 (a) (a) (a) 20 -------------- (a) 

--------------- (a) 2 (a) (a) 2 20 -------------- (a) 

--------------- (a) (a) (a) (a) (a) 20 -------------- (a) 

--------------- (a) 1 (a) (a) (a) 20 -------------- (a) 

--------------- (a) 1 (a) (a) 5 20 -------------- (a) 

MISSISSIPPI -Continued 

--------------- 10 10 2 8 (a) 10 (a) (a) 

--------------- 40 6 1 4 10 (a) (a) (a) 

--------------- (a) (a) (a) (a) (a) (a) (a) (a) 

--------------- 10 (a) 4 40 1 (a) 0.4 (a) 

--------------- 10 10 2 12 (a) 10 (a) (a) 

--------------- 10 2 4 (a) 10 12 .1 (a) 

--------------- (a) 55 3 8 8 40 (a) 2.1 

--------------- (a) (a) (a) 4 (a) (a) (a) (a) 

--------------- 20 5 (a) 40 2 (a) (a) 3.8 

--------------- (a) 5 (a) (a) 3 (a) (a) (a) 

MISSOURI -Continued 

1.2-yr. high 10 (a) (a) (a) (a) (a) (a) 

1.01-yr. high 20 14 (a) 18 5 (a) (a) (a) 

1.01-yr. high 30 8 (a) 8 (a) 5 2.7 3.0 

1.01-yr. high 10 5 (a) (a) (a) (a) (a) 1.8 

1.02-yr. high 20 25 (a) (a) (a) 40 1.2 1.0 

1.2-yr. high 30 (a) (a) 24 19 (a) (a) (a) 

1.2-yr. high 10 8 (a) 15 25 (a) (a) (a) 

25 30 6 (a) 20 12 (a) (a) (a) 

1.2-yr. high (a) 20 5 8 (a) 30 (a) (a) 

1.2-yr. high 40 15 (a) (a) (a) 20 (a) (a) 

--------------- (a) (a) (a) 14 15 (a) (a) (a) 

1.0-yr. high (a) 10 (a) 14 20 20 4.3 4.8 

Mean flow 20 6 (a) 30 30 1,200 (a) (a) 

MONTANA-Continued 

--------------- (a) (a) (a) (a) (a) 10 --------------- (a) 

--------------- 5 2 (a) (a) 23 130 --------------- (a) 

--------------- 10 (a) (a) (a) (a) 20 --------------- (a) 

--------------- 10 (a) (a) (a) (a) (a) --------------- (a) 

--------------- 10 (a) (a) (a) (a) 30 --------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

27 
USGS 

station 

No. 

06288200 

12323750 

12330100 

06610000 

06610670 

06682000 

06765701 

06772500 

06775900 

06785000 

06799300 

06803500 

06882000 

09419800 

------------

10244950 

------------

10249300 

------------

------------

10350000 

01092000 

01093500 

01131500 

01154500 

01378570 

01381200 

01381800 

01389500 

01392600 

01400480 

01400510 

Table I.-Reconnaissance of selected minor elements in 

No. on 

map and Location 

source 

MONTANA-Continued 

6-BM Beauvais Creek near St. Xavier-------------------------------------

7-MIC Silver Bow Creek below Warm Springs ~reek, Warm Springs __ _ 

8-MIC Flint Creek below Boulder Creek near Maxville _________________ _ 

1-PWS 

2-MIC 

3-MIC 

4-MIC 

5-MIC 

6-BM 

7-MIC 

8-MIC 

9-MIC 

10-MIC 

1-MIC 

2-MIC 

3-BM 

4-MIC 

5-BM 

6-MIC 

7-PWS 

8-MIC 

NEBRASKA 

Missouri River at Omaha·-------------------------------------------

Missouri River at Bellevue------------------------------------------

North Platte River near Minatare----------------------------------

Supply Canal near Maxwell_ _______________________________________ _ 

Wood River near Chapman.·----------------------------------------

Dismal River near Thedford----------------------------------------

Middle Loup River at St. PauL-------------------------------------

Elkhorn River at Stanton------------------------------------------- Salt Creek at Lincoln _______________________________________________ _ 

Big Blue River at Barneston.·---------------------------------------

NEVADA 

Las Vegas Wash near Boulder City----------~----------------------

Las Vegas Wash below confluence of Sewage plant. ______________ 

Steptoe Creek near Ely, White Pine County----------------------

Waste discharge at culvert, U.S. Highway 93 White Pine--------

South Twin River near Round Mtn., Nye County ---------------

Carson River near New Empire, below sewage treatment plant.. 

Truckee River at Reno----------------------------------------------

Truckee River at Vista ----------------------------------------------

NEW HAMPSHIRE 

Date of 

collection 

(1970) 

Oct. 7 

Oct. 7 

Oct. 7 

Oct. 9 

Oct. 9 

Oct. 15 

Oct. 1 

Oct. 5 

Oct. 1 

Oct. 5 

Nov. 5 

Oct. 12 

Nov. 5 

Nov. 19 

Nov. 19 

Oct. 23 

Oct. 23 

Oct. 29 

Nov. 5 

Nov. 4 

Nov. 4 

1-MIC Merrimack River near Goffs Falls---------------------------------- Oct. 13 

2-PWS Massabesic Lake near Manchester·---------------------------------· Oct. 13 

3-MIC Connecticut River near Dalton .. ----------------------------------- Oct. 12 

4-MIC Connecticut River at North Walpole .... --------------------------- Oct. 13 

NEW JERSEY 

1-PWS Hackensack River at Hackensack.·--------------------------------- Oct. 27 

2-MIC Rockaway River at Pine Brook ------------------------------------ Oct. 15 

3-MIC Whippany River at Pine Brook-------------------------------------- Oct. 15 

4-PWS Passaic River at little Falls------------------------------------------ Oct. 19 

5-MIC Passaic River at Harrison·-------------------------------------------- Oct. 27 

6-MIC Raritan River at Technicon Site 1 at Manville_____________________ Oct. 12 

7-MIC Raritan River at Manville·-------------------------------------------- Oct. 12 

Discharge 

(cfs) 

7.89 

150 

150 

47,400 

47,400 

1,330 

1,850 

13 

190 

886 

351 

203 

58 

51 

b35 

4.04 

b25 

1.69 

---------------

------------·-- 580 

1,580 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

~stimated. 

28 
surface water of the United States, October 19 70-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved 1 Total 

MONT ANA-Continued 

-------------- (a) (a) (a) (a) (a) 20 ------------- (a) 

-------------- (a) 2 (a) (a) (a) 440 ------------- (a) 

-------------- (a) {a) (a) (a) (a) 20 ------------- (a) 

NEBRASKA-Continued 

-------------- (a) 2 (a) (a) (a) 20 (a) (a) 

-------------- (a) 4 (a) (a) (a) 20 (a) (a) 

21 (a) 1 (a) (a) (a) 40 -------------- 0.8 

-------------- (a) 2 (a) (a) (a) 10 (a) .6 

-------------- (a) (a) (a) (a) (a) 10 (a) (a) 

50 (a) (a) (a) (a) (a) (a) (a) (a) 

54 (a) 1 (a) (a) (a) 10 ------------- (a) 

58 (a) (a) (a) (a) (a) 50 (a) (a) 

12 10 (a) (a) (a) (a) 10 ------------- (a) 

96 (a) 40 (a) (a) (a) 80 (a) 1.0 

NEVADA-Continued 

-------------- (a) (a) 6 (a) 2 10 ------------- (a) 

-------------- 10 2 (a) (a) 5 180 ------------- 0.5 

-------------- (a) (a) (a) (a) (a) 15 -------------· .9 

-------------- (a) (a) (a) (a) (a) 10 -------------· (a) 

-------------- (a) (a) (a) (a) (a) 10 ------------- .8 

-------------- 10 (a) (a) (a) (a) (a) ------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) ------------- .8 

-------------- (a) (a) (a) (a) (a) (a) ------------- 1.3 

NEW HAMPSHIRE-Continued 

-------------· (a) 1 (a) 3 7 30 (a) (a) 

-------------- (a) 2 (a) 2 7 60 (a) (a) 

-------------- (a) (a) (a) (a) 4 50 (a) (a) 

-------------- 10 2 (a) 5 4 30 (a) 0.7 

1

NEW JERSEY -Continued 

-------------- (a) (a) (a) (a) 7 40 ------------- (a) 

-------------- (a) 1 (a) (a) 7 20 ---------- (a) 

-------------- 10 (a) (a) (a) 1 30 ------------- (a) 

-------------- (a) (a) (a) (a) 4 20 ------------- (a) 

-------------- (a) (a) (a) (a) 4 30 ------------- (a) 

-------------- (a) (a) (a) (a) 2 10 ------------- (a) 

-------------- (a) (a) (a) (a) 3 5 ------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

29 
Table I.--Reconnaissance of selected minor elements in 

USGS 

station 

No. 

Q1402900 

01402920 

01403065 

No. on Date of 

map and Location collection 

source (1970) 

NEW JERSEY -Continued 

8-PWS Millstone River at Manville·------------------------------------------ Oct. 12 

9-MIC Raritan River at Technicon, Site 2 at South Bound Brook_______ Oct. 12 

10-MIC Raritan River at Calco Dam at South Bound Brook, Technicon Oct. 12 

Site 3. 

01404100 11-MIC Raritan River at South Bound Brook-----------------------------.. -· Oct. 12 

01408000 12-MIC Manasquan River at Squankum·------------------------------------- Oct. 13 

01411900 13-MIC Maurice River Rte. 49, Millville ------------------------------------- Oct. 12 

01456000 14-PWS Musconetcong River at Hacketstown. ... ---------------------------- Oct. 15 

01463500 15-PWS Delaware River at Trenton------------------------------------------- Oct. 13 

01464000 16-MIC Assunpink Creek at Trenton----------------------------------------- Oct. 29 

01466500 17-BM McDonalds Branch in Lebanon State Forest_ ______________________ Oct. 12 

01467190 18-MIC Cooper River, Rte. 130, Camden·----------------------------------- Oct. 12 

07221740 

08266800 

08315000 

08317400 

08330800 

08358300 

08377900 

08396500 

08405200 

09364000 

09365000 

09365000 

09368000 

09430600 

09431500 

01327750 

01335200 

01335770 

01343900 

01347000 

01350000 

01354160 

01356400 

01357000 

01359560 

01359920 

NEW MEXICO 

1-MIC Canadian River at N.Mex.-Tex. Stateline __________________________ 

2-MIC Red River at Fish Hatchery near Questa ____________________________ 

3-PWS Santa Fe River above McClure River near Santa Fe---------------

4-MIC Rio Grande below Cochiti Dam-------------------------------------

5-MIC Rio Grande below Rio Bravo Bridge at Alberquerque _____________ 

6-MIC Rio Grande conveyance channel at San Marcial ------------------· 

7-BM Rio Mora near Terrero ___ ---------------------------------------------

8-MIC Pecos River near Artesia----------------------------------------------

9-MIC Pecos River below sewage effluent at Carlsbad --------------------

10-PWS Animas River at Aztec·-----------------------------------------------

11-MIC San Juan River at Farmington, 60 ft. from bank_ __________________ 

12-MIC San Juan River at Farmington, 20ft. from bank_ __________________ 

13-MIC San Juan River at Shiprock.·-----------------------------------------

14-BM Mogollon Creek near Cliff. ____________________ ---------------------.. 

15-MIC Gila River at Redrock·------------------------------------------------

NEW YORK 

1-MIC Hudson River at Fort Edward---------------------------------------

2-PWS Tomhannock Reservoir near Troy----------------------------------. 

3-MIC Hudson River at Waterford·------------------------------------------

4-PWS Hinckley Reservoir near Utica---------------------------------------

5-MIC Mohawk River near Little Falls ..•. ----------------------------------

6-PWS Schoharie Creek at Prattsville----------------------------------------

7-MIC Mohawk River at Lock 10, Crainsville. _____________________________ _ 

8-PWS Mohawk River near Latham·-----------------------------------------

9-MIC Mohawk River at Crescent Dant-------------------------------------

10-MIC Hudson River at Glenmont ------------------------------------------

11-PWS Alcove Reservoir near AlbanY---------------------------------------- -------

Oct. 7 

Oct. 8 

Oct. 14 

Oct. 13 

Oct. 6 

Oct. 12 

Oct. 5 

Oct. 5 

Oct. 5 

Oct. 13 

Oct. 13 

Oct. 13 

Oct. 14 

Oct. 14 

Oct. 12 

Oct. 22 

Oct. 23 

Oct. 30 

Oct. 14 

Oct. 15 

Oct. 23 

Oct. 15 

Oct. 23 

Oct. 24 

Oct. 9 

Oct. 9 

Discharge 

(cfs) 

3,670 

19.7 

50.5 

1.84 

810 

--------------· 

2.89 

---------------

----------·--·-

---------------

---------------

---------------

---------------

--------------- 1.89 

40.3 

---------------

--·------------

-----.---------

--------------· 

1,700 

4,770 

---------------

---------------

---------------

---------------

--------------- a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

30 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

{Cr) Dissolved I Total 

NEW JERSEY-Continued 

-----------·-- (a) (a) (a) 1 s 20 -------------- (a) 

-------------- (a) (a) (a) (a) 4 10 -------------- (a) 

-------------- (a) (a) (a) 2 s 30 -------------- (a) 

-------------- (a) (a) (a) 2 4 20 -------------- (a) 

-------------- 10 1 (a) 1 4 10 -------------- (a) 

------------·- 30 1 (a) 1 3 30 -------------- (a) 

-------------- (a) (a) (a) (a) 4 10 -------------- (a) 

-------------- (a) (a) (a) 1 s 20 -.------------ (a) 

-------------- (a) (a) (a) (a) 9 so -------------- (a) 

-------------- (a) 1 (a) 1 8 10 -------------- (a) 

-------------- 10 (a) 1 4 1S -------------- (a) 

NEW MEXICO-Continued 

-------------- (a) (a) (a) :(a) (a) (a) -------------- (a) 

-------------- (a) 1 (a) (a) (a) 10 -------------- (a) 

-------------- (a) 1 (a) 1 (a) (a) -------------- (a) 

-------------- (a) 2 (a) 1 (a) (a) -------------- (a) 

----·--------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) 1 (a) 30 -------------. (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) 1 (a) (a) (a) 20 -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

·------------- (a) (a) (a) 1 (a) (a) -------------- (a) 

··------------ (a) (a) (a) 1 (a) (a) -------------- (a) 

-·------------ (a) (a) (a) 1 (a) (a) -------------- (a) 

NEW YORK-Continued 

-------------- (a) 1 2 1 s 40 (a) (a) 

-------------- (a) 1 1 1 s (a) (a) (a) 

-------------- (a) (a) (a) (a) (a) so (a) (a) 

-------------- (a) I 2 1 7 20 (a) (a) 

54 (a) 1 1 3 2 10 (a) (a) 

.6 (a) (a) 1 (a) 4 10 (a) 0.6 

-------------- 10 I 2 2 1 (a) (a) (a) 

-------------- 10 1 (a) 1 2 30 (a) .5 

-------------- (a) (a) (a) 1 4 40 (a) (a) 

-------------- (a) (a) 6 (a) s 20 (a) (a) 

-------------- (a) (a) s (a) (a) 40 (a) (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

31 
Table I.-Reconnaissance of selected minor elements in 

USGS No. on 

station map and Location 

No. source 

NEW YORK-Continued 

01362198 12-BM Esopus Creek at Shandaken·-----------------------------------------

01362500 13-PWS Esopus Creek at Coldbrook ------------------------------------------ 01372058 14-MIC Hudson River below Poughkeepsie _________________________________ _ 

01375000 15-PWS Croton River at New Croton Dam near Croton-on-Hudson_ _____ _ 

01413500 16-PWS East Branch Delaware River at Margaretville ______________________ _ 

01425000 17-PWS West Branch Delaware River at Stilesville--------------------------

01435000 18-PWS Neversink River near Claryville. _____________________________________ _ 

01503495 19-PWS Susquehanna River at Tompkins St., Binghamton ________________ _ 

01513500 20-MIC Susquehanna River at VestaL .... ------------------------------------

04214245 21-PWS Lake Erie at Woodlawn ... ___________ ------ ____ ----------------------- 04215800 22-MIC Buffalo River at Michigan Ave., Buffalo ___________________________ _ 

04216050 23-PWS Lake Erie at Buffalo--------------------------------------------------

04219350 24-PWS Niagara River at Niagara Falls·---------------------------------------

04219640 25-MIC Niagara River at Youngstown.---------------------------------------

04220284 26-PWS Lake Ontario at Rochester-------------------------------------------

04232006 27-MIC Genessee River at Charlotte Docks, Rochester ____________________ _ 

04236000 28-PWS Skaneateles Lake at Skaneateles.------------------------------------

04240010 29-MIC Onondaga Creek at Spencer St., Syracuse--------------------------

04240170 30-PWS Otisco Lake at Marietta·----------------------------------------------

04242500 31-PWS East Branch Fish Creek at Taberg-----------------------------------

04249000 32-MIC Oswego River at Lock 7, Oswego.·----------------------------------

04260500 33-MIC Black River at Watertown--------------------------------------------

04265452 34-MIC Grass River below Massena Center·----------------------------------

02096500 

02115860 

03144368 

NORTH CAROLINA 

1-MIC Roanoke River at Weldon--------------------------------------------

2-PWS Lake Michie on Flat River near Durham·---------------------------

3-PWS Lake Benson on Swift Creek near Raleigh _________________________ _ 

4-MIC Neuse River below Walnut Creek, Wake County-------------------

5-PWS Lake Brandt on Reedy Fork near Greensboro---------------------

6-MIC Buffalo Creek near McLeansville ------------------------------------

7-MIC Haw River at Haw River----------------------------------------------

8-PWS High Point Reservoir near High PoinL------------------------------

9-MIC Deep River near High Point------------------------------------------

1 0-PWS Little Cross Creek near Fayetteville---------------------------------

11-PWS Cape Fear River at Lock 1 near KellY-------------------------------

12-MIC Cape Fear River near Wilmington-----------------------------------

13-PWS Salem Lake on Salem Creek near Winston Salem _________________ _ 

14-MIC Muddy Creek near Muddy Creek------------------------------------

15-MIC Irish Buffalo Creek near Concord-----------------------------------

16-PWS Catawba River near Charlotte _____________________ -------------------

17-PWS Long Creek at Gastonia·---------------------------------------------- -------

Date of 

collection 

(1970) 

Oct. 14 

Oct. 14 

Oct. 14 

Oct. 6 

Oct. 28 

Oct. 28 

Oct. 21 

Oct. 22 

Oct. 22 

Oct. 15 

Oct. 14 

Oct. 15 

Oct. 13 

Oct. 13 

Oct. 16 

Oct. 16 

Oct. 13 

Oct. 13 

Oct. 13 

Oct. 12 

Oct. 12 

Oct. 8 

Oct. 14 

Oct. 21 

Oct. 29 

Oct. 29 

Oct. 29 

Oct. 28 

-----------

Oct. 29 

Oct. 28 

Oct. 28 

Oct. 30 

Oct. 20 

Oct. 20 

Oct. 28 

Oct. 28 

Oct. 8 

Oct. 8 

Oct. 8 

Discharge 

(cfs) 

24 

20 

97.5 

.6 

400 

41 

65 

b885 

2,420 

---------------

---------------

---------------

---------------

---------------

--------------- b3,070 

--------------- 209 

--------------- 408 

4,660 

4,650 

------------·--

1,910 

---------------

---------------

---------------

--------------- 54.6 

93 

--------------- 17.5 

---------------

---------------

---------------

--------------- 102 

32.6 

---------------

--------------- aLess than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

bEstimated. 

32 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) {Cd) hexavalent (Co) {Pb) (Zn) (Hg) 

(Cr) Dissolved l Total 

NEW YORK-Continued 

66 (a) 6 (a) 4 5 (a) (a) (a) 

99.7 (a) 5 (a) 3 3 20 (a) (a) 

--------------- (a) 1 (a) 5 4 (a) (a) ---------- --------------- (a) 3 (a) 4 20 (a) (a) 

21 (a) (a) 3 (a) 1 10 (a) (a) 

87 (a) (a) 2 (a) (a) 20 (a) (a) 

68 (a) 1 1 (a) 2 (a) (a) (a) 

74 (a) 1 (a) (a) 4 (a) (a) (a) 

60 (a) 1 1 1 5 20 (a) (a) 

--------------- (a) 3 (a) 4 1 20 (a) 0.5 

--------------- 20 3 (a) 2 4 40 (a) .7 

--------------- 20 3 (a) 2 3 30 (a) .5 

--------------- (a) 2 (a) 6 1 10 (a) (a) 

--------------- (a) 2 (a) 5 3 20 (a) .6 

-------------~- (a) 1 (a) 6 1 (a) (a) (a) b25. (a) 3 (a) 6 1 20 (a) (a) 

--------------- (a) 1 1 1 (a) 30 (a) (a) 

--------------- (a) 1 1 2 1 10 (a) (a) 

--------------- 20 1 1 1 (a) 10 (a) (a) 

37 10 1 (a) 1 (a) (a) (a) (a) 

50 10 1 1 1 (a) (a) (a) (a) 

25 (a) (a) 4 (a) (a) (a) (a) (a) 

--------------- (a) 2 1 2 (a) (a) (a) 

NORTH CAROLINA-Continued 

--------------- 15 2 2 (a) (a) 50 --------------- (a) 

--------------- (a) 1 (a) 6 30 --------------- (a) 

--------------- (a) 2 (a) 5 90 --------------- ---------- --------------- (a) (a) (a) 6 80 --------------- (a) 

--------------- (a) (a) (a) 4 230 --------------- (a) 

--------------- (a) 1 1 8 180 --------------- (a) 

--------------- (a) 1 (a) 5 140 --------------- (a) 

--------------- (a) 1 (a) 3 50 --------------- (a) 

--------------- (a) 1 (a) (a) 210 --.------------- (a) 

--------------- (a) 1 1 (a) 2 30 --------------- (a) 

--------------- 60 1 (a) (a) 17 300 --------------- (a) 

--------------- (a) 2 1 (a) 4 140 --------------- (a) 

--------------- (a) 3 1 (a) (a) 380 --------------- (a) 

--------------- (a) 1 (a) (a) 14 110 --------------- (a) 

--------------- 30 (a) 19 1 32 230 --------------- (a) 

--------------- 60 (a) (a) (a) 3 10 --------------- (a) 

--------------- 20 (a) (a) (a) 13 70 --------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

33 
Table I.-Reconnaissance of selected minor elements in 

USGS No. on Date of Discharge station map and Location collection (cfs) No. source (1970) 

NORTH CAROLINA-Continued 

03451926 18-MIC French Broad River at Alexander_ ___________________________________ Oct. 15 1,730 

03448959 19-PWS Burnett Lake on North Fork Swannanoa River near Asheville ___ Oct. 9 ---- """- ---------- 03448616 20-MIC Hominy Creek near Enka·-------------------------------------------- Oct. 14 75.2 

03457124 21-MIC Pigeon River at Clyde---------- __ ------------------------------------- Oct. 14 268 

03460000 22-BM Cataloochee Creek near Cataloochee ________________________________ Oct. 13 23.3 

NORTH DAKOTA 

05054000 1-MIC Red River of the North at Fargo·------------------------------------ Oct. 3 37 

05054020 2-MIC Red River of the North below Fargo-------------------------------- Oct. 3 37 

05082500 3-MIC Red River of the North at Grand Forks _____________________________ Oct. 3 1,100 

05092003 4-MIC Red River of the North below Drayton _____________________________ Oct. 5 1,100 

05118015 5-MIC Souris River below Minot_ __ ------------------------------------------ Oct. 7 14 

06332515 6-BM Bear Den Creek near Mandaree-------------------------------------- Oct. 19 .25 

06349010 7-MIC Missouri River below Bismark---------------------------------------- Oct. 9 28,000 

OHIO 

03097200 1-PWS Meander Creek Reservoir at Youngstown raw water intake near Oct. 8 ---------------- Youngstown. 

03099510 2-MIC Mahoning River at State line below Lowellville ____________________ Oct. 8 370 

03117100 3-MIC Tuscarawas River at Navarre----------------------------------------- Oct. 6 195 

03118500 4-PWS Nimishillen Creek at North IndustrY--------------------------------- Oct. 6 105 

03159510 5-MIC Hocking River below Athens----------------------------------------- Oct. 3 430 

03222010 6-PWS Scioto River at raw water intake at Columbus--------------------- Oct. 14 240 

03229600 7-MIC Scioto River below Shadeville ________________________________________ Oct. 15 220 

03234500 8-MIC Scioto River at HigbY-------------------------------------------------- Oct. 3 966 

03237280 9-BM Upper Twin Creek at McGaw·---------------------------------------- Oct. 22 1.9 

03238800 10-PWS Ohio River at raw water intake at Cincinnati_ ______________________ Oct. 2 ---------------- 03260200 11-MIC Ohio River below Cincinnati at Fernbank--------------------------- Oct. 30 ---------------- 03271350 12-MIC Great Miami River at West Carrollton _______________________________ Oct. 1 360 

03272400 13-MIC Great Miami River near Middletown_ ________________________________ Oct. 1 400 

04187500 14-MIC Ottawa River at Allentown ___________________________________________ Oct. 5 20 

04189000 15-MIC Blanchard River near FindlaY----------------------------------------- Oct. 6 20 

04194023 16-MIC Maumee River near mouth at Toledo. _______________________________ Oct. 6 317 

04194100 17-PWS Lake Erie at Toledo raw water intake near Toledo. ________________ Oct. 6 ---------------- 04200550 18-MIC Black River below Elyria. _____ --------------- ___ ---------------------- Oct. 14 758 

04201600 19-PWS Lake Erie at raw water intake at Cleveland _________________________ . Oct. 15 ---------------- 04202402 20-PWS Cuyahoga River at Akron raw water intake near Kent------------ Oct. 7 250 

04206300 21-MIC Cuyahoga River below Akron·--------------------------------------- Oct. 15 530 

04208506 22-MIC Cuyahoga River at 3d Street bridge ~t Cleveland------------------ Oct. 14 1,930 

04212200 23-MIC Grand River at Painesville _____________________________________________ Oct. 7 740 

04212700 24-MIC Ashtabula River at Ashtabula---------------------------------------- Oct. 7 360 

a less than lower limit of detection as follows: Arsenic and zinc,l~ss than 10 micrograms per liter; cadmium, chromium. 

34 
.surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

{percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

{Cr) Dissolved J Total 

NORTH CAROLINA-Continued 

------------- (a) 3 (a) 2 25 110 -------------- (a) 

------------- (a) 1 (a) 2 25 10 -------------- (a) 

------------- 15 2 (a) (a) 21 3,400 -------------- (a) 

------------- 20 2 (a) 1 (a) 90 -------------- (a) 

------------- 15 2 (a) (a) 20 10 -------------- (a) 

NORTH DAKOTA-Continued 

------------- (a) 1 (a) (a) (a) 20 -------------- 0.8 

------------- 10 26 (a) (a) (a) 190 -------------- 2.2 

------------- (a) 1 (a) (a) (a) 25 (a) (a) 

------------- (a) (a) (a) (a) (a) 150 -------------- (a) 

------------- 10 (a) (a) (a) (a) 25 -------------- (a) 

------------- (a) 1 (a) (a) (a) 30 -------------- (a) 

------------- (a) 1 (a) (a) (a) 20 -------------- (a) 

OHIO-Continued 

------------- 10 2 (a) 10 1.0 1.5 

68 (a) 2 4 1 120 1.0 1.2 

32 (a) 8 6 (a) 1 100 .6 1.7 

45 10 (a) 3 (a) (a) 180 1.4 1.5 

46 (a) 1 8 (a) (a) 170 (a) (a) 

------------- (a) (a) 7 (a) (a) 140 (a) .9 

80 10 (a) 5 2 1 20 .6 .6 

57 10 (a) 10 (a) (a) 100 (a) (a) 

45 (a) 1 4 (a) (a) 220 (a) (a) 

------------- (a) 2 6 (a) (a) 10 (a) 1.3 

------------- (a) 1 4 (a) 1 260 (a) (a) 

91 10 2 1 1 (a) 20 (a) .5 

92 (a) 2 5 (a) 1 20 (a) .8 

71 (a) (a) 4 1 220 (a) .7 

68 (a) (a) 1 (a) 40 (a) .7 

84 (a) 1 1 (a) 1 20 .5 .8 

------------- (a) (a) 2 (a) (a) 10 (a) (a) 

10 10 2 3 (a) (a) 110 1.7 1.7 

------------- (a) (a) 2 1 (a) 130 (a) (a) 

------------- (a) 1 2 (a) 1 (a) (a) (a) 

25 (a) (a) 3 (a) (a) (a) (a) (a) 

10 10 (a) 2 (a) 1 (a) (a) (a) 

24 (a) (a) 3 (a) 1 20 .9 1.7 

10 (a) (a) 2 (a) (a) 120 --------------- .6 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

35 
Table 1 -Reconnaissance of selected minor elements in 

USGS 

station 

No. 

-----------

-----------

-----------

07174700 

-----------

-----------

-----------

07241550 

-----------

-----------

07328100 

07335700 

11492200 

11509500 

13331500 

14139000 

14165500 

14166000 

14183000 

14312260 

14361500 

01449700 

01454720 

01464600 

01467030 

01467200 

01470960 

01474500 

No. on 

map and 

source 

1-PWS 

2-PWS 

3-PWS 

4-MIC 

5-MIC 

6-MIC 

7-MIC 

8-MIC 

9-MIC 

10-MIC 

11-MIC 

12-BM 

Location 

OKLAHOMA 

Lake Hefner at Oklahoma City --------------------------------------

Stanley Draper Lake at Oklahoma City-----------------------------

Spavinaw Lake Aqueduct at Tulsa·----------------------------------

Caney River near Ochelata-------------------------------------------

Arkansas River near Coweta. ___ ---------- __ --------------------------

Bird Creek near Catoosa •.. ____ --------------------------------------. 

Pryor Creek near Pryor. ____ .••. -------------------- ___ ----------------

North Canadian River near Harrah.·---------------------------------

Deep Fork River near Arcadia.·--------------------------------------

East Cache Creek near Walters---------------------------------------

Washita River at Alex. ______ ---------------------------------- ____ ----_ 

Kiarnichi River near Big Cedar---------------------------------------

OREGON 

1-BM Crater Lake near Crater Lake----------------------------------------

2-MIC Klamath River at Keno-----------------------------------------------

Date of 

collection 

(1970) 

Oct. 6 

Oct. 6 

Oct. 14 

Oct. 20 

Oct. 14 

Oct. 20 

Oct. 13 

Oct. 15 

Oct. 15 

Oct. 12 

Oct. 12 

Oct. 6 

Oct. 

Oct. 23 

3-MIC Powder River near Baker__ ___ ·---------------------------------------- Oct. 11 

4-BM Minam River near Minam·-----------------------~-------------------- Oct. 1 

5-MIC Columbia River below The Dalles.·---------------------------------- Oct. 27 

6-PWS Bull Run Reservoir No. 1 near Bull Run---------------------------- Oct. 8 

7-PWS McKenzie River near Leaburg·--------------------------------------- Oct. 20 

8-MIC McKenzie River near Coburg·---------------------------------------- Oct. 20 

9-MIC Willamette River at Harrisburg·-------------------------------------- Oct. 20 

10-PWS North Santiam River at Mehama·------------------------------------ Oct. 21 

11-MIC Willamette River near Oregon City---------------------------------- Oct. 21 

12-MIC South Umpqua River near Roseburg-------------------------------- Oct. 20 

13-MIC Rogue River below Grants Pass·-------------------------------------- Oct. 23 

PENNSYLVANIA 

1-PWS ~ild Cree\ Res~rvoir near Hatcher~---------------------------------

2-PWS Little Lehigh River at Allentown Filter Plant----------------------

3-MIC Lehigh River at Easton·-----------------------------------------------

4-MJ(' Delaware River at Bristol·--------------------------------------------

5-PWS Delaware River at Torresdale Filter Plant intake __________________ _ 

6-MIC Delaware River at Ben Franklin Bridge, Philadelphia _____________ _ 

7-MIC Tulpehocken Creek at Blue Marsh damsite near Reading--------

8-PWS Wolf Creek Reservoir near Pottsville -------------------------------- 9-PWS Maiden Creek below Lake Ontelaunee, Reading __________________ _ 

10-MIC Schuylkill River below Reading-------------------------------------

11-PWS Schuylkill River at Philadelphia, Belmont Filter Plant------------

12-PWS Lake Scranton at dam at Scranton----------------------------------

13-PWS Spring Brook Reservoir near Wilkes-Barre--------------------------

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

Oct. 

13 

13 

14 

8 

8 

8 

13 

14 

13 

13 

8 

12 

12 -------

Discharge 

(cfs) 

----------------

----------------

---------------- 33 

Average 

b4o 

b2 

135 

32 

14 

64 

22 

90 

2,480 

2,150 

---------------- 48 

----------------

Tidal 

Tidal 

Tidal 

76 

3.3 

19.3 

443 

260 

----------------

---------------- a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

b Estimated. 

36 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved I Total 

OKLAHOMA-Continued 

-------------- (a) (a) (a) (a) (a) 20 -------------- 0.8 

-------------- (a) (a) (a) (a) (a) (a) -------------- 1.7 

-------------- (a) 1 (a) (a) (a) 30 -------------- (a) 

65 (a) 12 (a) (a) (a) 140 -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

b45 (a) 4 (a) (a) (a) 30 -------------- (a) 

b6o (a) (a) (a) 1 (a) (a) -------------- (a) 

b5o (a) 1 2 1 (a) 20 -------------- (a) 

b5e 10 1 (a) 1 (a) 20 -------------- .5 

90 (a) (a) (a) (a) (a) (a) -------------- (a) 

82 (a) (a) (a) (a) (a) 10 -------------- (a) 

40 (a) 8 (a) (a) 84 790 -------------- (a) 

OREGON-Continued 

-------------- (a) (a) (a) (a) (a) (a) ------------- (a) 

-------------- (a) 1 (a) (a) (a) (a) -------------- (a) 

-------------- 10 (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) 10 -------------- (a) 

-------------- (a) (a) (a) (a) (a) 10 -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) 20 -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

-------------- (a) (a) (a) (a) (a) 40 ------------- (a) 

-------------- (a) (a) (a) (a) (a) 10 -------------- (a) 

-------------- (a) (a) (a) (a) (a) (a) -------------- (a) 

PENNSYLVANIA-Continued 

-------------- (a) 3 (a) (a) 3 70 -------------- (a) 90 (a) (a) (a) (a) 8 (a) -------------- (a) 

80 (a) (a) (a) (a) 3 170 -------------- (a) 

-------------- 10 5 (a) 2 39 250 -------------- (a) 

-------------- (a) 2 (a) 2 20 60 -------------- (a) 

-------------- (a) 1 (a) 1 13 220 -------------- 0.8 

90 60 2 (a) (a) 3 5 -------------- (a) 

-------------- 10 11 (a) 2 17 20 -------------- (a) 

-------------- (a) 4 (a) (a) 3 5 -------------- (a) 

-------------- (a) 3 17 3 5 25 -------------- (a) 

95 (a) 1 2 2 17 170 -------------- (a) 

-------------- (a) 7 (a) (a) 8 5 -------------- (a) 

-------------- (a) 27 (a) (a) 3 10 -------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

37 
USGS 

station 

No. 

OI536000 

OI537700 

OI545500 

OIS45600 

-------------

OI553500 

-------------

-------------

OI568500 

OI570000 

OI570500 

01570500 

01571500 

01575000 

-------------

01576500 

-------------

01614090 

-------------

-------------

-------------

03048500 

03049655 

03082500 

-------------

03085000 

03085250 

-------------

-------------

-------------

01109400 

OI114000 

OI115450 

01116610 

02131000 

02I35000 

02135300 

Table I.-Reconnaissance of selected minor elements in 

No. on 

map and Location 

source 

PENNSYLVANIA-Continued 

I4-MIC Lackawanna River at Old Forge ------------------------------------- IS-MIC Susquehanna River near Hunlock Creek.·---------------------------

I6-MIC West Branch Susquehanna River at Renovo------------------------

I7-BM Young Womans Creek near Renovu·--------------------------------

I8-PWS Hagerman Run Reservoir at dam near Williamsport---------------

19-PWS West Branch Susquehanna River at Lewisburg---------------------

20-MIC Bald Eagle Creek at Tyrone------------------------------------------

21-MIC Juniata River at Lewistown (Rt. I03 bridge)----------------------- 22-PWS Clark Creek near Carsonville __________________________________________ 

23-PWS Conodoguinet Creek near Hogestown·------------------------------

24-MIC Susquehanna River at Harrisburg (sta. 600) ------------------------

25-MIC Susquehanna River at Harrisburg (sta. 2900)-----------------------

26-PWS Yellow Breeches Creek near Camp Hill-----------------------------

27-PWS South Branch Codorus Creek near York·---------------------------

28-PWS Lebanon Reservoir at High Bridge .• ---------------------------------

29-PWS Conestoga Creek at Lancaster·---------------------------------------

30-PWS Octoraro Creek near Oxford_ _________________________________________ 

31-PWS Conococheague Creek near Fayetteville _____________________________ 

32-PWS Lake Altoona near Altoona ------------------------------------------

33-PWS North Fork Bens Creek at Johnstown·----------.--------------------

34-PWS Filter Plant on Lake Erie at Erie ... ----------------------------------

35-MIC Kiskiminetas River at Leechburg. ___________________ .• _________ ---- __ 

36-MIC Allegheny River at Oakmont_ ________________________________________ 

37-MIC Youghiogheny River at Connellsville ________________________________ 

38-MIC Youghiogheny River at McKeesport --------------------------------

39-MIC Monongahela River at Braddock·------------------------------------

40-MIC Chartiers Creek at Canonsburg·--------------------------------------

41-PWS Lake Oneida near Butler----------------------------------------------

42-PWS Beaver River near West Pittsburgh .. ---------------------------------

43-MIC Ohio River at Monaca·------------------------------------------------

RHODE ISLAND 

1-PWS Tenmile River near East Providence---------------------------------

2-MIC Moshassuck River at Providence.·------------------------------------

3-PWS Scituate Reservoir near Hope·----------------------------------------

4-MIC Pawtuxet River near Warwick·---------------------------------------

SOUTH CAROLINA 

Date of 

collection 

(1970) 

Oct. I2 

Oct. I2 

Oct. 8 

Oct. IS 

Oct. 14 

Oct. I4 

Oct. 7 

Oct. 9 

Oct. 7 

Oct. 7 

Oct. 7 

Oct. 7 

Oct. 7 

Oct. 16 

Oct. I4 

Oct. 12 

Oct. I2 

Oct. 16 

Oct. 7 

Oct. 7 

Oct. I3 

Oct. 8 

Oct. 12 

Oct. 9 

Oct. 12 

Oct. 8 

Oct. 9 

Oct. 8 

Oct. 8 

Oct. 9 

Oct. I3 

Oct. I3 

Oct. 13 

Oct. 13 

1-MIC Pee Dee River at Pee Dee·-------------------------------------------- Oct. I3 

2-MIC Little Pee Dee River at Galivants Ferry, U.S. SOL________________ Oct. I3 

3-BM Scape Ore Swamp near North Bishopville, U.S. 15 _______________ _ 

Discharge 

(cfs) 

--------------- 2,8IO 

2,440 

85 

-------------- 1I,450 

114 

286 

6.9 

119 

6,900 

6,900 

130 

40 

-------------- 95 

27.9 

1.8 

--------------

--------------

-------------- 505 

23,500 

I,OOO 

1,200 

2,340 

30 

-------------- 1,030 

I7,900 

--------------

--------------

--------------

--------------

875 

a Less than tower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

38 
surface waterofthe United States, October 19"70-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) {Cd) hexavalent (Co) {Ph) (Zn) (Hg) 

(Cr) Dissolved 1 Total 

PENNSYLVANIA-Continued 

---------------- (a) 32 3 67 3 50 -------------- (a) 

80 (a) 2 2 9 7 10 -------------- (a) 

50 (a) 6 (a) 63 55 80 -------------- (a) 

---------------- (a) (a) (a) 1 6 10 -------------- (a) 

---------------- (a) (a) (a) 1 7 10 -------------- (a) 

30 (a) 5 (a) 11 4 20 -------------- (a) 

20 10 1 (a) (a) 11 (a) -------------- (a) 

98 10 2 (a) (a) 15 (a) -------------- (a) 

---------------- (a) 1 (a) (a) 5 10 -------------- (a) 

90 (a) 2 (a) 1 5 10 -------------- (a) 

85 (a) 6 (a) (a) 5 10 -------------- (a) 

85 (a) 5 (a) 1 3 10 -------------- (a) 

90 (a) 2 (a) 1 5 5 -------------- (a) 

70 (a) (a) (a) (a) 2 5 -------------- (a) 

---------------- (a) (a) (a) 2 9 50 -------------- (a) 

85 (a) 2 (a) (a) 4 10 -------------- (a) 

---------------- (a) 1 (a) (a) 2 (a) -------------- (a) 

---------------- (a) (a) (a) 1 4 (a) -------------- (a) 

---------------- 10 (a) (a) 37 7 210 -------------- (a) 

·--------------- (a) 1 (a) 5 2 30 -------------- (a) 

---------------- (a) (a) (a) 1 7 10 -------------- (a) 

85 (a) 3 3 110 29 1,400 -------------- (a) 

---------------- (a) 1 (a) 7 11 60 -------------- (a) 

65 (a) (a) (a) 1 11 10 -------------- (a) 

---------------- 10 (a) (a) 3 10 20 -------------- (a) 

85 (a) (a) (a) 9 3 20 -------------- (a) 

90 10 (a) (a) 1 3 10 -------------- (a) 

---------------- (a) (a) 1 (a) 6 (a) -------------- (a) 

55 (a) (a) (a) 1 7 60 -------------- (a) 

55 (a) (a) (a) 4 20 20 --------------1 (a) 

RHODE ISLAND-Continued 

---------------- (a) 1 (a) 3 8 40 (a) (a) 

---------------- (a) 3 (a) 4 8 40 (a) (a) 

---------------- (a) 2 1 4 5 10 (a) (a) 

---------------- 20 3 1 3 6 100 (a) (a) 

SOUTH CAROLINA-Continued 

---------------- (a) (a) (a) (a) 8 50 -------------- (a) 

---------------- 10 (a) 1 (a) 1 40 -------------- (a) 

---------------- (a) (a) (a) 2 10 -------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

39 
USGS 

station 

No. 

02146820 

02147200 

02148310 

02162105 

02169750 

02197300 

06409000 

06419000 

06476050 

06477950 

06478000 

06479510 

06482100 

3431090 

3431740 

3486650 

3487650 

3495870 

3497115 

3497300 

3538290 

3567950 

3569250 

3604000 

7032280 

07227500 

07227900 

07312700 

Table I.-Reconnaissance of selected minor elements in 

No. on 

map and Location 

source 

SOUTH CAROLINA-Continued 

4-MIC Black River at U.S. 701 Bridge ..................................... . 

5-MIC Sugar Creek near Ft. MilL ...............................•........... 

6-MIC Catawba River near Ft. Lawn, Highway 9 .............•......•.... 

7-MIC Wateree River at U.S. 76 Bridge------------------------------------

8-PWS South Pacelot River (Rainbow Lake) -----------------------------· 

9-PWS Broad River Diversion Canal at Columbia-------------------------

10-PWS North Saluda Reservoir at Greenville-----------------------------· 

11-MIC Saluda River near Greenwood. ................•........ ., .•........•. 

12-MIC Congaree River near Ft. Motte ···---------------------------------· 

13-PWS Goose Creek Reservoir near Charleston ........................... . 

14-MIC Edisto River near Collegeville---------------------------------------

15-MIC Lake Keowee near Salem·-------------------------------------------

16-BM Upper Three Runs near New Ellenton ......................•...... 

SOUTH DAKOTA 

1-BM Castle Creek above Deerfield Reservoir ............................ . 

2-MIC Rapid Creek below Rapid City Sewage Plant. .................... . 

3-MIC James River below Huron ...........•................................ 

4-PWS Mitchell Lake at Mitchell ........................................... . 

5-MIC James River near Mitchell ........................................... . 

6-MIC Big Sioux River below Watertown ................................. . 

7-MIC Big Sioux River near Brandon .. ·------------------------------------

TENNESSEE 

1-PWS Cumberland River below Mill Creek at Nashville ................. . 

2-MIC Cumberland River below Richland Creek near Nashville ........ . 

3-MIC Watauga River near Johnson City----------------------············· 

4-MIC South Fork Holston River near Kingsport. ........................ . 

5-PWS Tennessee River above First Creek at Knoxville .................. . 

6-MIC Tennessee River above Little River near Knoxville. .............. . 

7 -BM Little River above Townsend ....................................... . 

8-MIC Clinch River near Lawnville ----··········-·························· 

9-PWS Tennessee River below Citico Creek at Chattanooga. ............ . 

1 0-MIC Tennessee River near Signal Mountain. .... ----------··············· 

11-BM Buffalo River near Flat Woods---------------------··········· ..... . 

12-MIC Mississippi River near Memphis ......•.....•......................... 

TEXAS 

Date of 

collection 

{1970) 

Oct. 9 

Oct. 13 

Oct. 14 

Oct. 12 

Oct. 9 

Oct. 14 

Oct. 14 

Oct. 14 

Oct. 9 

Oct. 12 

Oct. 12 

Oct. 9 

Oct. 13 

Oct. 12 

Oct. 12 

Oct. 14 

Oct. 12 

Oct. 9 

Oct. 9 

Oct. 13 

Oct. 13 

Oct. 8 

Oct. 8 

Oct. 8 

Oct. 14 

Oct. 12 

Oct. 12 

Oct. 12 

Oct. 14 

1-MIC Canadian River near Amarillo....................................... Oct. 14 

2-PWS Lake Meredith near Sanford .. ·-···-----------······-·····--·-······- Oct. 12 

3-MIC Wichita River near Charlie........................................... Oct. 9 

Discharge 

(cfs) 

--------------- 60 

10,000 

7,500 

---------------

---------------

---------------

--------------- 6,000 

--------------- 500 

--------------- 96 

11 

--------------- 2.0 

---------------

---------------

--------------- 74 

6,500 

6,500 

---------------

---------------

---------------

--------------- 32 

--------------- 34,600 

40,700 

329 

288,009 

4 

170 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

40 
surface waterofthe United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Ph) (Zn) (Hg) 

(Cr) Dissolved 1 Total 

SOUTH CAROLINA-Continued 

--------------- (a) (a) (a) (a) 2 30 -------------- (a) 

--------------- I,IOO (a) (a) 2 11 I20 -------------- (a) 

--------------- IO (a) (a) I 2 30 -------------- (a) 

--------------- (a) (a) 2 I 3 20 -------------- (a) 

--------------- (a) (a) I (a) (a) 50 -------------- (a) 

--------------- IO (a) 2 2 2 IO -------------- (a) 

--------------- (a) (a) (a) (a) I 40 -------------- (a) 

--------------- IO (a) (a) (a) 3 (a) -------------- (a) 

--------------- (a) (a) I (a) I 20 -------------- (a) 

--------------- (a) (a) I (a) 3 20 -------------- (a) 

--------------- (a) (a) (a) (a) 2 IO -------------- (a) 

--------------· (a) (a) (a) 2 5 20 -------------- (a) 

--------------- IO (a) 1 (a) 3 IO -------------- (a) 

SOUTH DAKOTA-Continued 

--------------- (a) (a) (a) (a) (a) IS (a) 

----.---------- (a) (a) (a) (a) (a) 20 -------------- 0.7 

--------------- IO I4 (a) (a) 7 30 -------------- (a) 

--------------- (a) 3 (a) (a) 2 10 -------------- (a) 

--------------- (a) 12 (a) (a) (a) 30 -------------- (a) 

--------------- (a) 3 (a) (a) (a) 30 -------------- (a) 

--------------- (a) 4 (a) (a) I 30 -------------- (a) 

TENNESSEE-Continued 

--------------- (a) (a) (a) 6 6 (a) 0.4 0.5 

--------------- (a) (a) (a) 8 8 (a) (a) (a) 

--------------- 60 5 (a) 5 I2 4,500 (a) (a) 

--------------- (a) 9 1 (a) (a) 25 (a) (a) 

--------------- (a) 6 (a) (a) 5 10 (a) .3 

--------------- (a) 10 (a) (a) (a) (a) (a) (a) 

95 IO 6 (a) 35 (a) 5 -------------- (a) 

--------------- 30 5 (a) 20 16 IS (a) (a) 

--------------- IO 4 (a) 34 (a) IO (a) (a) 

--------------- 20 8 (a) (a) 15 (a) (a) (a) 

50 (a) 5 (a) 16 3 (a) (a) (a) 

--------------- IO 8 4 25 I2 I30 (a) (a) 

TEXAS-Continued 

90 (a) (a) (a) 1 3 40 -------------- (a) 

--------------- (a) (a) (a) (a) 3 (a) -------------- (a) 

--------------- (a) (a) (a) 2 3 (a) -------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

41 
Table I.-Reconnaissance of selected minor elements in 

USGS No. on Date of Discharge station map and Location collection 

No. source (1970) (cfs) 

TEXAS-Continued 

07314000 4-PWS Lake Kickapoo near Archer CitY------------------------------------ Oct. 17 --------------- 07314800 5-PWS Lake Arrowhead near Henrietta------------------------------------ Oct. 9 --------------- 08017400 6-PWS Lake Tawakoni near Wells Point, Dallas--------------------------- Oct. 6 --------------- ------------ 7-PWS Neches River at treatment plant at Beaumont-------------------- Oct. 7 850 

------------ 8-MIC Neches River near Bridge City-------------------------------------- Oct. 7 --------------- ------------ 9-PWS Lake Worth near Fort Worth .. ·------------------------------------- Oct. 7 --------------- ------------ 10-PWS Benbrook Reservoir near Benbrook·------------------------------- Oct. 7 --------------- ------------ 11-MIC West Fork Trinity River at Loop 12 below Grand Prairie------- Oct. 7 --------------- 08055500 12-PWS Elm Fork Trinity River near Carrollton--------------------------- Oct. Q 740 

08057410 13-MIC Trinity River below Dallas ------------ __ ------.... -------•. ------.•. Oct. 6 1,520 

08060500 14-PWS Lavon Reservoir near Lavon (Dallas) ------------------------------ Oct. 7 ---------------- 08072000 15-PWS Lake Houston near Sheldon ... -------------------------------------- Oct. 8 --------------- ------------- 16-PWS Houston Ship Channel at San Jacinto Battle Ground, Houston .. Oct. 8 --------------- ------------ 17-MIC North Fork Double Mt. Fork Brazos River at Lubbock---------- Oct. 12 --------------- ------------ 18-PWS Lake Abilene near Buffalo GaP------------------------------------- Oct. 7 --------------- ------------ 19-PWS Lake Kirby near Abilene-------------------------------------------- Oct. 7 --------------- 08083500 20-PWS Fort Phantom Hill Reservoir near Nugent. •.. --------------------- Oct. 7 --------------- 08084100 21-MIC Deadman Creek near Nugent. ... ------------------------------------ Oct. 15 10 

------------ 22-PWS Waco Reservoir near Waco------------------------------------------ Oct. 13 --------------- 08098290 23-MIC Brazos River near Highbank ... -------------------------------------- Oct. 19 230 

08158000 24-PWS Colorado River (T,own Lake) at Austin·--------------------~------ Oct. 20 46 

------------- 25-MIC Colorado River near Bastrop _______ .----- ____ ----------------------- Oct. 9 --------------- 08181800 26-MIC San Antonio River near Elmendorf-------------------------------- Oct. 8 154 

------------ 27-PWS Nueces River at Calallen ...•.. --------------.. ___ ----------• ------... Oct. 5 --------------- ------------ 28-MIC Corpus Christi Ship Channel at outlet to bay--------------------- Oct. 5 --------------- ------------ 29-PWS Rio Grande (Franklin Canal) at El Paso·--------------------------- Oct. 14 --------------- ------------ 30-MIC Rio Grande at Riverside Diversion--------------------------------- Oct. 14 ---------------

UTAH 

10140973 1-MIC Weber River below Ogden Sewage plant near Plain City--------- Oct. 8 640 

10159500 2-PWS Provo River below Deer Creek Dam •.. ----------------------------- Oct. 9 165 

10162962 3-MIC Provo Sewage Drain, Provo .•.. -------------------------------------- Oct. 9 21.0 

10162963 4-MIC Mill Race Stream below Provo Sewage Drain --------------------- Oct. 9 35.0 

10167500 5-PWS Little Cottonwood Creek near Salt Lake CitY--------------------- Oct. 8 10.0 

10168500 6-PWS Big Cottonwood Creek near Salt Lake City ------------- 7--------- Oct. 8 41.0 

10171000 7-MIC Jordan River at Salt Lake CitY-------------------------------------- Oct. 8 130 

10172210 8-BM Red Butte Creek at Ft. Douglas near Salt Lake City------------- Oct. 20 2.5 

10172550 9-MIC Jordan River at 4th North at Salt Lake CitY----------------------- Oct. 8 130 

10172622 10-MIC Sewage drain below Salt Lake City Sewage Plant. ........••...... Oct. 8 45.0 

10172623 11-MIC Sewage drain at Redwood Road at Salt Lake City ________________ Oct. 8 46.0 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

42 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) {As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved 1 Total 

TEXAS-Continued 

--------------- (a) (a) (a) 1 2 (a) --------------- (a) 

--------------- (a) (a) (a) 2 2 (a) --------------- (a) 

--------------- (a) 1 (a) 1 2 (a) --------------- (a) 

--------------- (a) (a) (a) 2 2 10 --------------- (a) 

--------------- (a) (a) (a) 2 4 (a) --------------- (a) 

--------------- (a) (a) (a) 2 3 (a) --------------- (a) 

--------------- (a) (a) (a) 2 2 (a) --------------- (a) 

--------------- {a) 1 (a) 2 3 30 --------------- 1.0 

16 (a) (a) (a) 1 2 (a) --------------- 1.0 

20 (a) 1 (a) 2 60 --------------- 1.0 

--------------- (a) 1 (a) 1 2 (a) --------------- (a) 

--------------- (a) 1 (a) 2 2 (a) --------------- (a) 

--------------- (a) (a) (a) 2 2 (a) --------------- (a) 

--------------- 10 (a) {a) 2 2 (a) --------------- (a) 

--------------- (a) 1 (a) 2 2 20 --------------- (a) 

--------------- (a) (a) (a) 2 2 (a) --------------- (a) 

--------------- (a) (a) (a) 2 1 (a) --------------- (a) 

--------------- {a) (a) (a) 1 2 (a) --------------- (a) 

--------------- (a) (a) (a) (a) 2 (a) --------------- (a) 

89 (a) (a) (a) (a) (a) (a) --------------- (a) 

99 {a) (a) (a) (a) 2 (a) --------------- (a) 

--------------- (a) 1 (a) 2 4 (a) --------------- (a) 

67 {a) (a) (a) 1 2 (a) --------------- (a) 

--------------- (a) (a) (a) 2 1 (a) --------------- (a) 

--------------- (a) (a) (a) 2 3 80 --------------- (a) 

--------------- (a) (a) (a) 2 2 60 --------------- (a) 

--------------- (a) {a) (a) (a) 1 (a) --------------- (a) 

UTAH-Continued 

--------------- (a) (a) {a) (a) (a) 30 --------------- (a) 

--------------- (a) (a) (a) (a) (a) (a) --------------- (a) 

--------------- (a) (a) (a) (a) (a) 60 --------------- 0.50 

--------------- (a) (a) (a) (a) (a) 40 --------------- (a) 

--------------- (a) (a) (a) (a) (a) 70 --------------- (a) 

--------------- (a) (a) (a) (a) (a) 90 --------------- (a) 

--------------- 10 (a) (a) (a) (a) 20 --------------- (a) 

--------------- (a) 1 (a) (a) (a) (a) --------------- (a) 

--------------- 10 (a) {a) (a) (a) 15 -----------.--- (a) 

--------------- 5 2 (a) (a) (a) 140 --------------- 1.0 

--------------- 10 (a) (a) (a) 120 --------------- .7 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

43 
Table I.-Reconnaissance of selected minor elements in 

USGS 

station 

No. 

04282000 

04286000 

04294500 

2075000 

2042500 

2037000 

12039300 

12101500 

12106700 

12113430 

12117500 

12137500 

12147600 

12398600 

12422500 

12447390 

12500450 

14018500 

14244200 

14247300 

------------

03204000 

------------

No. on 

map and Location 

source 

VERMONT 

1-MIC Otter Creek at Center Rutland--------------------------------------

2-MIC Winooski River at Montpelier ---------------------------------------

3-PWS Lake Champlain at Burlington--------------------------------------

VIRGINIA 

1-PWS Pedlar River above Lynchburg Reservoir near Pedlar Mills ______ _ 

2-MIC Dan River at Rte. 29 bridge, Danville·------------------------------

3-MIC James River at Lynchburg (Rte. 29 bridge)------------------------

4-MIC James River at Mayos Bridge at Richmond·-----------------------

5-PWS Occoquan Creek at Rte. 123 Bridge near Alexandria ____________ _ 

6-MIC South Branch Elizabeth River at Rte. 337, South Norfolk. ..... . 

7-MIC South Branch Elizabeth River at Rtes. 13 and 460, South 

Norfolk. 

8-MIC West Branch Elizabeth River at West Norfolk Bridge, West 

Norfolk. 

9-PWS Chickahominy River at Rte. 155 bridge near Providence Forge .. 

10-MIC James River, Rtes. 17 and 258 Bridge at Newport Newsd _______ _ 

11-PWS James River and Kanawha Canal near Richmond-----------------

WASHINGTON 

I-BM North Fork Quinault River near Amanda Park ....•.......•....... 

2-MIC Puyallup River at PuyalluP-----------------------------------------·· 

3-PWS Green River at Purification plant near Palmer·····----------------

4-MIC Duwamish River at East Marginal Way near Seattle •..•.....•...•. 

5-PWS Cedar River near Landsburg -·······--········--·-······-------------

6-PWS Sultan River near Startup .......•••.....•.•......•.....•............. 

7-PWS South Fork Tolt River near Index. ...•.•........•..••.....•.......•. 

8-MIC Pend Oreille River at international boundary ..•........•..••....•. 

9_._MIC Spokane River at Spokane ...........•.•...•......••...•.......•....• 

10-BM Andrews Creek near Mazama ...••..•..............•...•...•.••..•••• 

11-MIC Yakima River above Ahtanum Creek at Union Gap_ .•.•....•..... 

12-MIC Walla Walla River near Touchet •••••.••.•..•.•.......••..•.•...•••.. 

13-MIC Cowlitz River at Kelso •...••...........•.........•.•...•.••.•.•..•... 

14-MIC Columbia River, Cathlamet Channel at Cathlamet ....•..•..•.•..• 

WEST VIRGINIA 

1-MIC Ohio River at Huntington, Guyandotte station. •..••.•.•...•...••. 

2-MIC Guyandotte River at Branchland upstream center of bridge ..•.. 

3-PWS Kanawha River at Nitro, city water intakes ..•....•..•......•••.•. 

Date of 

collection 

(1970) 

Oct. 13 

Oct. 13 

Oct. 15 

Oct. 8 

Oct. 7 

Oct. 8 

Oct. 9 

Oct. 9 

Oct. 16 

Oct. 16 

Oct. 16 

Oct. 15 

Oct. 15 

Oct. 17 

Oct. 15 

Oct. 8 

Oct. 8 

Oct. 13 

Oct. 8 

Oct. 7 

Oct. 8 

Oct. 7 

Oct. 8 

Oct. 20 

Oct. 14 

Oct. 13 

Oct. 6 

Oct. 6 

Oct. 8 

Oct. 8 

Oct. 9 

Discharge 

(cfs) 

283 

103 

---------------

---------------

---------------

---------------

---------------

---------------

---------------

---------------

---------------

------------ --~ 

---------------

133 

1,150 

181 

835 

331 

389 

23 

29,300 

2,260 

3.92 

1,810 

107 

5,600 

110,000 

----------------

----------------

----------------

aLess than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

bEstimated. 

donly unftltered sample available. 

44 
surface water of the United States, October 19 70--Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

hexavalent (Hg) (percent) (As) (Cd) (Cr) (Co) (Pb) (Zn) Dissolved 1 Total 

VERMONT -Continued 

--------------· (a) 3 1 4 50 70 (a) (a) 

--------------- (a) 10 (a) .3 17 30 (a) (a) 

--------------- (a) 5 (a) 3 I3 30 -------------- (a) 

VIRGINIA-Continued 

--------------- (a) (a) (a) (a) 3 50 -------------- (a) 

--------------- (a) (a) (a) (a) 42 50 -------------- (a) 

--------------- (a) (a) (a) (a) (a) 30 -------------- (a) 

--------------- (a) (a) (a) (a) (a) 45 -------------- (a) 

--------------- (a) (a) (a) (a) 4 20 -------------- (a) 

--------------- (a) 2 I (a) 4 2IO -------------- (a) 

--------------- (a) 3 (a) (a) 4 80 -------------- (a) 

--------------- (a) (a) (a) 4 (a) --------------- (a) 

--------------- (a) 8 (a) 1 5 80 -------------- (a) 

--------------- (a) (a) (a) (a) 6 20 -------------- (a) 

--------------- (a) 2 (a) I (a) (a) -------------- (a) 

WASHINGTON-Continued 

--------------- (a) (a) (a) (a) 2 IO --------- ----- (a) 

--------------- (a) (a) (a) (a) 3 IO -------------- (a) 

--------------- IO (a) (a) (a) 4 (a) -------------- (a) 

--------------- (a) I ·(a) (a) 4 IO -------------- (a) 

--------------- (a) (a) (a) (a) 3 (a) -------------- (a) 

--------------- (a) (a) (a) (a) 7 50 -------------- {a) 

--------------- (a) (a) (a) (a) 2 (a) ---------- ---- (a) 

--------------- (a) (a) (a) (a) 2 50 --------------- (a) 

--------------- (a) 2 (a) (a) 3 340 --------------- (a) 

--------------- (a) 1 {a) (a) (a) I 50 --------------- (a) 

--------------- (a) (a) (a) (a) (a) I90 --------------- I 

--------------- {a) 1 (a) (a) 5 I 50 --------------- (a) I 

--------------- (a) (a) (a) (a) 5 (a) --------------- (a) 

--------------- (a) 2 (a) (a) 4 IO --------------- (a) 

WEST VIRGINIA-Continued 

--------------- (a) 3 (a) (a) I IS -------------- {a) 

--------------- (a) (a) (a) (a) (a) IO -------------- (a) 

--------------- 10 I (a) (a) 4 IO --------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

45 
Table I.-Reconnaissance of selected minor elements in .. 

USGS No. on Date of Discharge station map and Location collection (cfs) No. source {1970) 

WEST VIRGINIA-Continued 

------------ 4-MIC Kanawha River at Winfield, off center of toll bridge ------------- Oct. 9 --------------- ------------ 5-PWS Elk River at Charleston, city water intakes ----------------------- Oct. 9 --------------- ------------ 6-MIC Ohio River at Belleville Lock and Dam (side of lock well)------ Oct. 12 --------------- ------------ 7-PWS Ohio River at Warwood (Wheeling city intake)-------------------- Oct. 12 --------------- ------------ 8-MIC Ohio River at Lock and Dam No. 13 at McMechen _______________ Oct. 12 --------------- ------------ 9-PWS Tygart Valley River at Fairmont (city pump station) ............. Oct. 12 --------------- ------------ 10-MIC Monongahela River at Opekiska Lock and Dam 14 (downstream Oct. 13 --- ------------ end wingwallleft). 

01608500 11-MIC South Branch Potomac River near Springfield, (center of bridge Oct. 13 --------------- at gage). 

03186500 12-MIC Williams River at Dyer, center of bridge above gage. .•.........•.. Oct. 14 ---------------

WISCONSIN 

04026370 1-PWS Lake Superior at Ashland •..................•...•.................... Oct. 15 --------------- 04063700 2-BM Popple River near Fence ..•.•.......•................................ Oct. 9 50 

04067650 3-MIC Menominee River at Marinette. .........•....................•.•.•..• Oct. 9 1,650 

04084410 4-PWS Lake Winnebago at Neenah .......................•.................. Oct. 8 --------------- 04085085 5-MIC Fox River at Green Bay-------·········-·······-····--·······-------- Oct. 8 1,850 

04086004 6-MIC Sheboygan River at Sheboygan. ....................•................ Oct. 8 46 

04086040 7-MIC Lake Michigan at Milwaukee •............•........................... Oct. 7 --------------- 04087170 8-PWS Milwaukee River at Milwaukee ..•..•......•..•.•.•..•.........•..... Oct. 7 165 

05360490 9-MIC Flambeau River near Ladysmith ..................•.•.•............. Oct. 14 840 

05367050 10-MIC Chippewa River near Eau Claire .............•..•.......•............ Oct. 14 3,300 

05380973 11-PWS Black River at Neillsville. .•........................................... Oct. 14 140 

05391000 12-MIC Wisconsin River near Lake Tomahawk···················-····----- Oct. 15 421 

05400970 13-MIC Wisconsin River at Nekoosa. ..............•...........•.......•...... Oct. 13 1,960 

05405980 14-MIC Unnamed Tributary to Wisconsin River near Baraboo ............ Oct. 9 --------------- 05415000 15-MIC Galena River at Buncombe ··········----------------~--------·- ----- Oct. 10 56 

05430500 16-MIC Rock River at Afton •.........•.......•.....•.•....•.....•.....•...... Oct. 7 896 

WYOMING 

06228000 1-PWS Wind River at Riverton ••.........••..••.....••.•....•.......••.••..•. Oct. 16 550 

06274800 2-MIC Wood River near Kerwin ........••................•....•........•..• Oct. 22 1.5 

06285100 3-MIC Shoshone River near Lovell ··-·-·····················--····-··-·-··· Oct. 3 1,220 

06623800 4-PWS Encampment River above Hog Park Creek near En~ampment. .. Oct. 6 ---------------- 06634100 5-MIC Little Medicine Bow River below Shirley------------·-······-····-· Oct. 21 13 

06637910 6-MIC Rock Creek at Atlantic City------------·-···········--·········-···· Oct. 16 10 

09217000 7-MIC Green River near Green River .. ······-···························-- Oct. 11 1,460 

13018300 8-BM Cache Creek near Jackson. .•......•..•......••.••...•......•..••.•••. Oct. 11 7.6 

------------ 9-PWS Middle North Crow Creek at Cheyenne •.............•............. Oct. 16 ----------------

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadmium, chromium 

46 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

hexavalent (Hg) (percent) (As) (Cd) (Cr) (Co) (Pb) (Zn) Dissolved I Total 

WEST VIRGINIA-Continued 

-------------- (a) (a) (a) 1 (a) 75 -------------- (a) 

-------------- (a) 4 (a) 2 9 10 -------------- (a) 

-------------- 10 2 (a) 1 1 20 -------------- (a) 

-------------- (a) (a) (a) 1 1 10 -------------- (a) 

-------------- 10 (a) (a) 1 4 30 -------------- (a) 

-------------- 10 (a) (a) 4 4 30 -------------- (a) 

-------------- (a) (a) (a) 7 10 60 -------------- (a) 

-------------- (a) (a) (a) (a) (a) 5 -------------- (a) 

-------------- (a) (a) (a) 4 5 -------------- (a) 

WISCONSIN-Continued 

-------------- (a) (a) (a) 14 90 (a) (a) 

-------------- 10 (a) 1 (a) 5 (a) (a) (a) 

-------------- 10 (a) 1 (a) 4 (a) (a) (a) 

-------------- 10 (a) 1 (a) 10 20 (a) (a) 

-------------- 10 (a) (a) (a) 3 10 (a) (a) 

-------------- (a) (a) 1 (a) 3 30 1.0 1.1 

-------------- ,10 (a) 1 (a) 4 20 (a) (a) 

-------------- (a) (a) 1 (a) 2 30 (a) (a) 

-------------- (a) 1 1 (a) 5 60 (a) (a) 

-------------- (a) (a) 1 (a) 5 90 (a) (a) 

-------------- 10 (a) 1 (a) 9 90 (a) (a) 

-------------- 10 (a) 1 (a) 6 110 (a) (a) 

-------------- (a) 1 1 (a) 6 (a) (a) (a) 

-------------- (a) (a) (a) (a) 3 50 (a) (a) 

-------------- (a) (a) 1 (a) 3 120 (a) (a) 

---------- --- (a) (a) 1 (a) 2 30 (a) (a) 

WYOMING-Continued 

40 (a) (a) (a) (a) (a) 25 --------------- (a) 

-------------- (a) (a) (a) (a) (a) 70 --------------- (a) 

16 (a) (a) (a) (a) (a) 10 --------------- (a) 

-------------- (a) (a) (a) (a) (a) 5 --------------- (a) 

-------------- (a) (a) (a) (a) 3 10 --------------- (a) 

-------------- (a) (a) (a) (a) (a) 20 --------------- (a) 

-------------- (a) (a) (a) (a) (a) 20 --------------- (a) 

-------------- (a) 1 (a) (a) (a) 20 --------------- (a) 

-------------- (a) 1 (a) (a) (a) 10 --------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

47 
USGS 

station 

No. 

50055000 

Table I.-Reconnaissance of selected minor elements in 

No. on 

map and Location 

source 

PUERTO RICO 

1-PWS Rfo Piedras at Ri'o Piedras filtration plant. ...................•.... 

2-PWS Rfo Tanama at Arecibo ftltration plant •.................•.........• 

3-PWS Ri'o A'ii'asco and Rlo Canas at Mayaguez ftltration plant. ......••. 

4-PWS ruo Portugues and Lago Garzas at Ponce Plant Vieja •••.....•.... 

5-PWS Lago Guajataca, canal at Ramey Air Force Base------------------

6-MIC ruo Bayamon near Bayam6n, 1.5 miles below Highway 167 •.... 

7-MIC RiO Culebrinas at Highway 2 near Aguadilla ......... .' ••....•..•.•. 

8-MIC ruo Gurabo at Highway 185 northeast of Juncos---------·-··----

9-MIC ruo Portugues at Highway 1 at Ponce ...•......•.•....•...•..••..... 

10-PWS Rfo Grande de LoiZa at Highway 30 near Caguas.. ....•...•..•.•... 

Date of 

collection 

(1970) 

Oct. 27 

Oct. 29 

Oct. 29 

Oct. 29 

Oct. 29 

Oct. 30 

Oct. 29 

Oct. 28 

Oct. 28 

Oct. 28 

Discharge 

(cfs) 

b150 

b200 

b3o 

b3o 

bt20 

a Less than lower limit of detection as follows: Arsenic and zinc, less than 10 micrograms per liter; cadimum, chromium 

b Estimated. 

48 
surface water of the United States, October 1970-Continued 

Duration Arsenic Cadmium Chromium, Cobalt Lead Zinc Mercury 

(percent) (As) (Cd) hexavalent (Co) (Pb) (Zn) (Hg) 

(Cr) Dissolved I Total 

PUERTO RICO-Continued 

--------------- (a) (a) (a) 4 110 --------------- (a) 

--------------- (a) (a) (a) (a) 60 --------------- (a) 

--------------- (a) (a) (a) (a) 110 --------------- (a) 

--------------- (a) 1 (a) (a) 17 60 --------------- (a) 

--------------- (a) (a) (a) (a) (a) 40 ------.-------- (a) 

20 (a) 1 5 (a) 2 90 --------------- (a) 

40 (a) 1 1 (a) (a) 40 --------------- (a) 

55 (a) (a) 1 (a) 4 150 --------------- (a) 

3 (a) (a) (a) (a) 50 --------------- (a) 

60 (a) (a) 1 1 60 --------------- (a) 

(hexavalent), cobalt, and lead, less than 1 microgram per liter; mercury, less than 0.5 microgram per liter. 

49 GPO 906.686