compilation and interpretation of water - usgs

COMPILATION AND INTERPRETATION OF WATER-QUALITY

AND DISCHARGE DATA FOR ACIDIC MINE WATERS AT

IRON MOUNTAIN, SHASTA COUNTY, CALIFORNIA, 1940-91

By Charles N. Alpers, D. Kirk Nordstrom, and J.M. Burchard

U.S. GEOLOGICAL SURVEY

Water-Resources Investigations Report 91-4160

Prepared in cooperation with the

U.S. ENVIRONMENTAL PROTECTION AGENCY

CM -O

Sacramento, California 1992

U.S. DEPARTMENT OF THE INTERIOR MANUEL LUJAN, JR., SECRETARY

U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director

Any use of trade, product, or firm namesin this publication is for descriptive purposes onlyand does not imply endorsement by the U.S. Government

For sale by the Books and Open-File Reports Section, U.S. Geological Survey Federal Center, Box 25425 Denver, CO 80225

For additional information write to: District Chief U.S. Geological Survey Federal Building, Room W-2233 2800 Cottage Way Sacramento, CA 95825

CONTENTS

Abstract 1 Introduction 1

Background 1Purpose and scope 4

Summary of site characteristics 4Remaining sulfides in the Richmond and Hornet Mines 4Characteristics of Richmond Mine and Lawson Tunnel drainages 4Flow of ground water through the Richmond and Hornet Mines 5

Interpretation of hydrogeochemical data 6Hydrograph correlations between Richmond and Lawson portal effluents 6Geochemical correlations between Richmond and Lawson portal effluents 8Mass-balance calculations 13

Conclusions 17 References cited 18Appendix A. Precipitation data at Shasta Dam and nearby localities 19 Appendix B. Tables of water-quality data 49 Appendix C. Time-series plots of water-quality data 79

FIGURES

1. Map showing location of Iron Mountain and plan view of mine workings on 2600 level of Richmond Mine 2

2. Cross section through Iron Mountain, showing location of Richmond and Hornet deposits, Richmond adit, and Lawson Tunnel 3

3. Graphs showing correlation of discharge from Lawson and Richmond portals, 1983-91 64. Time-series plot of the ratio of zinc to copper and the discharge of Richmond and

Lawson portal effluents, and rainfall at Shasta Dam, July 1986-June 1987 7 5-8. Graphs showing:

5. Copper and zinc concentrations of Richmond and Lawson portal effluents, 1983-91 8

6. Concentration ratios of zinc to copper as a function of discharge, Richmond and Lawson portal effluents, 1983-91 9

7. Concentration ratios of zinc to copper in effluent from the Richmond portal compared to that of the Lawson portal, 1983-91 9

8. Concentration ratios of zinc to copper in effluent from the Richmond portalcompared to that of the Lawson portal, by year, 1983-91 10

9. Time-series plot of the ratio of zinc to copper and the discharge of Richmondand Lawson portal effluents, and rainfall at Shasta Dam, July 1984-June 1985 12

Al. Time-series plot of precipitation data at Kennett, 1940-42, and Shasta Dam, 1944-89 48

C1-C15. Graphs showing copper, zinc, cadmium, discharge, and rainfall, by decade: Cl. Boulder Creek copper plant influent, 1940-49 80 C2. Boulder Creek copper plant effluent, 1940-41 81 C3. Boulder Creek copper plant effluent, 1944-48 82 C4. Boulder Creek copper plant influent, 1950-59 83 C5. Boulder Creek copper plant effluent, 1950-59 84

III

C16-C19.

C20-C23.

C6. Boulder Creek copper plant influent, 1960-69 ' 85C7. Boulder Creek copper plant effluent, 1960-69 | 86C8. Boulder Creek copper plant influent, 1970-79 87C9. Boulder Creek copper plant effluent, 1970-79 88

CIO. Richmond portal effluent, 1970-79 89Cll. Lawson portal effluent, 1970-79 90C12. Boulder Creek copper plant influent, 1980-89 91C13. Boulder Creek copper plant effluent, 1980-89 92C14. Richmond portal effluent, 1980-89 93C15. Lawson portal effluent, 1980-89 94

Graphs showing copper, zinc, cadmium, discharge, and rainfall, 1985-88, by site:C16. Boulder Creek copper plant influent 95C17. Boulder Creek copper plant effluent 96CIS. Richmond portal effluent 97C19. Lawson portal effluent 98

Comparison plots of Richmond and Lawson portal effluents, December 1986-April 1987:C20. Copper 99C21. Zinc 100C22. Cadmium 101C23. Discharge 102

C24-C27.

C28-C31.

C32-C35.

Graphs showing Lawson portal effluent, December 1983-April 1985: C24. Dissolved solids, specific conductance, temperature, discharge, rainfall C25. Copper, zinc, temperature, discharge, rainfall 104 C26. Cadmium, magnesium, calcium, sulfate, discharge, rainfall 105 C27. Total iron, aluminum, pH, discharge, rainfall 106

Graphs showing Lawson portal effluent, October 1984-April 1985: C28. Dissolved solids, specific conductance, temperature, discharge, rainfall C29. Copper, zinc, temperature, discharge, rainfall 108 C30. Cadmium, magnesium, calcium, sulfate, discharge, rainfall 109 C31. Total iron, aluminum, pH, discharge, rainfall 110

Graphs showing Richmond portal effluent, December l|983-April 1985: C32. Dissolved solids, specific conductance, temperature, discharge, rainfall C33. Copper, zinc, temperature, discharge, rainfall 112 C34. Cadmium, magnesium, calcium, sulfate, discharge, rainfall 113

103

107

111

C35. Total iron, aluminum, pH, discharge, rainfall

C36-C39.

114

C40-C42.

Graphs showing Richmond portal effluent, October 1984-April 1985: C36. Dissolved solids, specific conductance, temperature, discharge, rainfall C37. Copper, zinc, temperature, discharge, rainfall 116 C38. Cadmium, magnesium, calcium, sulfate, discharge, rainfall 117 C39. Total iron, aluminum, pH, discharge, rainfall 118

Graphs showing copper, zinc, cadmium, discharge, and rainfall, by site: C40. Richmond portal effluent, 1983-87 119 C41. Lawson portal effluent, 1983-87 120 C42. Boulder Creek copper plant influent, 1981-84 121

115

IV

C43. Graphs showing discharge and copper concentrations of Boulder Creek copper plant influent, and rainfall at Shasta Dam, 1965-74 122

C44,C45. Graphs showing copper, zinc, cadmium, discharge, and rainfall, 1987-89, by site: C44. Richmond portal effluent 123 C45. Lawson portal effluent 124

C46-C50. Comparison plots of Richmond and Lawson portal effluents, 1983-91: C46. Zinc, copper, and discharge 125 C47. Zinc/copper ratio, discharge, and rainfall 126 C48. Cadmium, discharge, and rainfall 127 C49. Zinc, discharge, and rainfall 128 C50. Copper, discharge, and rainfall 129

C51-C54. Comparison plots of Richmond and Lawson portal effluents, 1983-84: C51. Zinc/copper ratio, discharge, and rainfall 130 C52. Cadmium, discharge, and rainfall 131 C53. Zinc, discharge, and rainfall 132 C54. Copper, discharge, and rainfall 133






V



C83-C86. Comparison plots of Richmond Mine emergency treatment plant influent, 1989-91: C83. Zinc/copper ratio, discharge, and rainfall 16? C84. Cadmium, discharge, and rainfall 163 C85. Zinc, discharge, and rainfall 164 C86. Copper, discharge, and rainfall 165

C87-C90. Comparison plots of Richmond Mine emergency treatment plant influent, 1989-90: C87. Zinc/copper ratio, discharge, and rainfall 166 C88. Cadmium, discharge, and rainfall 167 C89. Zinc, discharge, and rainfall 168 C90. Copper, discharge, and rainfall 169

C91-C94. Comparison plots of Richmond Mine emergency treatment plant influent, 1990-91: C91. Zinc/copper ratio, discharge, and rainfall 170 C92. Cadmium, discharge, and rainfall 171 C93. Zinc, discharge, and rainfall 172 C94. Copper, discharge, and rainfall 173

TABLES

1. Characteristics of Lawson and Richmond portal effluents, 1983-91 52. Composition of Lawson and Richmond portal effluents 1|43. Composition of minerals considered in mass-balance commutations 154. Results of separate mass-balance computations for Lawsor^ and Richmond portal effluents 165. Results of mass-balance mixing computations 17

Al. Daily precipitation data from Kennett and Shasta Dam, 19HO-91 21 A2. Monthly summary of precipitation data, Shasta Dam, 1944-91 47

Bl. Water-quality and discharge data from the Richmond Mini, 1970-91 52B2. Water-quality and discharge data from the Lawson portal and the Hornet Mine, 1974-91 57B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-88 61B4. Water-quality and discharge data from Richmond Mine emergency treatment plant, 1989-91 73

VI

CONVERSION FACTORS, ABBREVIATIONS, AND VERTICAL DATUM

Multiply By To obtain

degree Celsius (°C) 1.8 °C + 32 degree Fahrenheit (°F)°C + 273.15 kelvin (K)

cubic foot (ft3) 28.32 liter (L)cubic foot per second (ft3/s) 448.4 gallon per minute (gal/min)

foot (ft) 0.3048 meter (m)gallon (gal) 3.785 liter (L)

gallon per minute (gal/min) 0.06309 liter per second (L/s)inch (in.) 2.54 centimeter (cm)mile (mi) 1.609 kilometer (km)

ounce (oz) 28.35 gram (g)28,350 milligram (mg)

Abbreviations used:

moles/kg H2O (moles per kilogram of water) mL (milliliter)mmho/cm (millimhos per centimeter) mg/L (milligram per liter)

Vertical Datum

Sea Level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929-a geodetic datum derived from a general adjustment of the first-order level nets of the United States and Canada, formerly called Sea Level Datum of 1929.

VII

COMPILATION AND INTERPRETATION OF

WATER-QUALITY AND DISCHARGE DATA FOR

ACIDIC MINE WATERS AT IRON MOUNTAIN,

SHASTA COUNTY, CALIFORNIA, 1940-91

By Charles N. Alpers, D. Kirk Nordstrom, anc/J.M. Burchard

ABSTRACT

This report contains a compilation and interpretation of the historical records of water quality and discharge for the period 1940-91 from the two most significant discharge points for acid mine drainage at Iron Mountain, Shasta County, California-the Richmond and Lawson portals. The primary objectives are (1) to clarify whether or not there is a hydrologic connection between the Richmond and Lawson Tunnels, and (2) to formulate a conceptual model of subsurface processes that accounts for water-quality and discharge trends with time.

On the basis of five hydrogeochemical factors, it is concluded that mine drainage in the Lawson Tunnel contains metals and acidity derived primarily from oxidation of sulfides in the Hornet massive sulfide deposit. The factors are as follows: (1) a significant mass (about 1 million tons) of sulfides remain in the Hornet deposit, largely in the unsaturated zone; (2) the results of three- dimensional ground-water modeling indicate that ground water must enter the Hornet deposit; (3) there is a substantial difference in hydrograph response to winter storms between the Lawson and Richmond portal effluents, especially early in each wet season; (4) zinc/copper (Zn/Cu) ratios in Lawson Tunnel effluent are distinctly lower than those in Richmond Tunnel effluent during dry season low-flow conditions; and (5) results of mass-balance computations indicate that only a small part (about 2 percent by volume and 6 percent by metal content) of the Lawson Tunnel drainage could be derived from mixing of water from the Richmond deposit during low-flow conditions.

It is proposed that Zn/Cu ratios in the mine waters are controlled by alternating periods of precipitation and dissolution of sulfate minerals in the subsurface. Copper is concentrated relative to zinc in sulfate solid solutions such as melanterite, causing increased Zn/Cu ratios in mine waters during dry periods while sulfate minerals are

forming. Flushing of the efflorescent salts during periods of rapid infiltration causes a rapid decrease in the Zn/Cu ratio of the mine waters. Weekly data from 1983-91 indicate a lag time as much as several weeks in each wet season between the time when the Richmond portal effluent is affected by these processes and the onset of higher flows and reduced Zn/Cu values in the Lawson portal effluent. This behavior and the distinct Zn/Cu ratio in the Lawson portal effluent during low-flow conditions reinforce the conclusion that the Lawson Tunnel drainage derives its metals from the Hornet Mine and not the Richmond Mine. Therefore, any viable remediation alternative at Iron Mountain needs to account for the generation of acidic mine drainage from the Hornet mine workings, a process which will probably continue after any plugging is attempted in the Richmond mine workings.

INTRODUCTION

BACKGROUND

Iron Mountain, located in Shasta County, California (fig. 1), refers to both an abandoned mining town and a mountain peak at the same site. At Iron Mountain, there is a group of mines that produced ore from massive sulfide mineral deposits. The gossan, or oxidized surface expression of the massive sulfide, was originally mined in the 1880's for its high gold and silver content. After the initial mining of gossan, high concentrations of copper and zinc were found in sulfides at depth. Iron Mountain became the largest producer of copper in California and the sixth largest producer in the country during the first quarter of the 20th century (Kinkel and others, 1956).

12ZW

D - Drift

Approximately 1,300 feet to the Richmond portal

90 METERS

Water Sample Location

\ Access Limit

n E - Manway to 2650 level

Figure 1. Location of Iron Mountain and plan view of mine workings on 2600 level of Richmond Mine.

Mining ceased in 1962 except for copper removal from effluent solutions by traditional cementation, utilizing gravity flow of portal effluent through cleaned scrap iron. The mine portal effluents were extremely acidic and contained high concentrations of metals. These effluents caused major fish kills in the Sacramento River during heavy rainstorms. The high concentration of copper in the runoff water may have been responsible for the fish mortality (Nordstrom and others, 1977, appendix). However, major fish

kills may have been caused by the suffocating action of hydrolyzed iron and aluminum coating gill surfaces

and Leivestad, 1980). Fish kills from acid drainage produced at Iron Mountain have been

since at least 1940, following the completion Shasta Dam. Reports of fish kills were compiled

dstrom and others (1977). More recent fish are being prepared for the U.S.

Enviro:imental Protection Agency by CH2M Hill.

(Muni mine reported of by No kill c

In 1982, the U.S. Environmental Protection Agency (EPA) ranked Iron Mountain as one of the highest priority sites on the National Priority List for CERCLA or "Superfund" cleanup activity (Biggs, 1991). The EPA began a Remedial Investigation/ Feasibility Study (RI/FS) in 1983 to define the extent of the problem and to consider alternative remediation techniques. Although one RI/FS has been completed (CH2M Hill, 1985), inadequate hydrogeologic infor mation was available to assess remediation alterna tives. The country rock is primarily rhyolitic material that has been subjected to hydrothermal alteration and sea-floor metamorphism (Reed, 1984) and is highly fractured, resulting in fracture-controlled permeability that is difficult to model quantitatively. Proposals from private industry that promote mine plugging as a long-term remediation alternative have led to further consideration of both historical and recent data on water quality and discharge rates for clues to subsur face geochemical processes and hydrogeologic condi tions. A better understanding of these processes and conditions will provide insight into the possible consequences of mine plugging and the necessity for any contingency measures. The EPA will complete a second RI/FS during 1992 for the Boulder Creek operable unit at Iron Mountain, which includes the two most significant discharge points for acid mine drainage in the area-the Richmond and Lawson portals.

The Richmond and Lawson Tunnels are connected by two sets of inclined passageways (fig. 2), which are now partly blocked by "muck" (heterogeneous sulfide, waste rock, and decayed timbers). The source of water and dissolved constituents from the Lawson Tunnel remains unknown because it is presently inaccessible. One possibility is that waters and dissolved constituents in the Lawson Tunnel come exclusively from the overlying Hornet Mine workings. A second possibility is that the Lawson Tunnel receives most of its flow and all its dissolved metals through the inclined passageways and(or) other pathways, including fracture flow from the Richmond Mine workings. In addition, a third possibility is that Lawson Tunnel effluent represents a mixture of drainage from both the Richmond and Hornet Mines.

Plugging of the Richmond Tunnel and the four passageways to the Lawson Tunnel has been proposed by industry as a remediation alternative. If a large proportion of the dissolved metals in the Lawson Tunnel effluent is indeed derived from the Richmond Mine and if this flow can be greatly reduced and perhaps neutralized by treatment in a plugging program, then this alternative could potentially succeed in drastically reducing water treatment costs by reducing metal fluxes from the Lawson portal as well as eliminating all drainage from the Richmond portal. However, if most metals in the Lawson

LU

CO LU

oCO

LU LU U_

East 3.500 -

3,300-

3,100 -

2.900Lawson

2,700 - portal (projected

2,500-

2.300 -

West

2,100-

Ground surface

Richmond portal Richmond H adit

x

Richmond deposit _Mattie

deposit (projected) /

^^mmtMMximmtiir ' ^

/ Ax- Ore chute

Lawson tunnel

NOTE: Hornet Mine workings not shown 1000 FEET

250 METERS

Figure 2. Cross section through Iron Mountain, showing location of Richmond and Hornet deposits, Richmond adit, and Lawson Tunnel.

Tunnel effluent are derived from oxidation of sulfides within the Hornet sulfide deposit, then the proposed plugging measures would have no positive effect on water quality in the Lawson Tunnel effluent and would probably increase its quantity by increasing the hydraulic head in the area. Therefore, the source of metals and acidity in the Lawson Tunnel effluent needs to be identified so that a viable remediation alternative can be selected.

The U.S. Geological Survey has provided technical support to EPA regarding the geochemistry of acid mine drainage at Iron Mountain on a fairly continuous basis since the initial thesis research of Nordstrom (1977). The present report represents a culmination of effort by the USGS over the period 1986-91, dur ing which time several Interagency Agreements be tween EPA and USGS were made to fund this work.

PURPOSE AND SCOPE

The purpose of this report is to present a compil ation and interpretation of historical records of water quality and discharge for the period 1940-91 from the two most significant discharge points for acid mine drainage at Iron Mountain-the Richmond and Lawson portals. The primary objectives are (1) to clarify whether or not there is a hydrologic connection between the Richmond and Lawson Tunnels, and (2) to formulate a conceptual model of subsurface processes that accounts for water-quality and dis charge trends with time. Particular attention is focused on explaining the seemingly enigmatic sea sonal variations in zinc and copper concentrations with changing discharge from the tunnels, previously described by Nordstrom and others (1990). In the present report, it is proposed that zinc/copper (Zn/Cu) ratios in the mine waters are controlled by alternating periods of precipitation and dissolution of sulfate minerals in the subsurface.

Precipitation data from Shasta Dam were compiled (Appendix A) along with data for metal concen trations, pH, and discharge from the Lawson and Richmond portals (Appendix B). Graphical examin ation of the data as time-series and correlation plots showed certain similarities and differences between the Lawson and Richmond portal effluents (Appendix C). Geochemical modeling and mass-balance calcul ations were then used to assess the possibility that some of the metals in the Lawson portal effluent

could be derived from the oxidation of sulfides in the Richmond Mine rather than from the more proximal Hornet Mine, and to quantify the amount of possible ground-water mixing between these parts of the hydrogeologic system. The implications of these results are discussed with respect to remedial alternatives at Iron Mountain.

SUMMARY OF SITE CHARACTERISTICS

REMAINING SULFIDES IN THE RICHMOND AND HORNET MINES

Conditions at Iron Mountain seem to be nearly optimal for pyrite oxidation and maximum production of acidic mine waters. The most acidic mine waters that drain from Iron Mountain are carried by the Richmond adit and Lawson Tunnel, and discharge, respectively, at the Richmond and Lawson portals (fig. 2). The Richmond deposit is a well-defined mas$ive sulfide body about 200 ft wide, 150 ft high and one-half mile long. The Richmond and Richmond Extension Mines produced about 3.5 million tons of sulfide ore from a total reserve estimated at about 11.5 million tons, averaging about 1 percent copper and 3 percent zinc, although the assays show a large range of values (Shaffer, 1953).

The Hornet deposit is a part of the Richmond massive sulfide lens, which was down-dropped to the east by movement along the Scott Fault. Another relatively small sulfide body in the area, known as the Mattle deposit, was intersected by the Richmond adit at ar^ elevation of 2,600 ft above sea level (fig. 2). The original combined tonnage of the Hornet and Mattiie deposits is estimated to be 3.5 million tons, of which 2.2 million tons were mined prior to 1952, leaving 1.3 million tons of sulfides in these areas (Shaffer, 1953).

CHARACTERISTICS OF RICHMOND MINE AND LAWSON TUNNEL DRAINAGES

Oxidation of sulfides in the Richmond and Richmond Extension Mines produces a drainage effluent whose sulfuric acid concentration seems to be greater than any observed in previously studied effluents anywhere in the world (Nordstrom, 1977; Alpefs and Nordstrom, 1991). The Richmond adit

(elevation 2,600 ft above sea level) drains the workings of the Richmond and Richmond Extension Mines (fig. 2). During the period 1983-91, pH values in Richmond adit drainage have ranged from 0.02 to 1.5 (table 1), with typical values between 0.4 and 1.1.

The other main portal producing acidic drainage is at the mouth of the Lawson Tunnel, which underlies both the Richmond and Hornet deposits at an eleva tion of about 2,200 ft above sea level (fig. 2). Values of pH in Lawson Tunnel effluent have ranged from 0.6 to 2.8 in the period 1983-91, but most commonly were between 1.5 and 2.5. Concentrations of copper, zinc, and cadmium in the Lawson portal effluent are approximately 30 percent of those in the Richmond portal effluent (table 1). Chemical differences between the Richmond and Lawson effluents in terms of Zn/Cu ratio, especially during low flow conditions, are outlined in table 1 and are discussed in the section on "Interpretation of Hydrochemical Data."

Intermittently between 1940 and the present, a "cement copper" plant has been operated along Boulder Creek. Waters from both the Richmond and Lawson portals have been collected in a stainless-steel flume and directed to this plant, where copper has been exchanged chemically with scrap iron.

Appendix B includes a compilation of water- quality data for the combined Richmond and Lawson portal effluents.

FLOW OF GROUND WATER THROUGH THE RICHMOND AND HORNET MINES

Hydrogeologic modeling of ground-water condi tions at Iron Mountain was done by CH2M Hill, using the CFEST program (Gupta and others, 1987), and by Roy F. Weston, Inc., using the MODFLOW program (McDonald and Harbaugh, 1988). The re sults from both modeling efforts are generally similar. They indicate that underground workings of both the Richmond Mine and the Hornet Mine are major sinks for ground water and that substantial quantities of ground water flow into both mines from the sides.

The important point here is that clean ground water is forecast to flow toward the Hornet sulfide deposit without first passing through the Richmond deposit. Hence, some of the water issuing from the Lawson portal must have passed through the bedrock sur rounding the Hornet Mine and not through the Rich mond Mine by way of partly open manways or ore chutes.

Table 1. Characteristics of Lawson and Richmond portal effluents, 1983-91

[Source of data: See appendix B. gal/min, gallon per minute; mg/L, milligram per liter; --, no data]

Lawson portal effluent Richmond portal effluent

Mean Range Mean Range

Overall

Discharge (gal/min) ...........pH (units) ..................Zinc (mg/L) ................Copper (mg/L) ..............Zinc/copper (weight ratio) .......

...... 40

...... 1.6

...... 540

...... 90

...... 6.2

13 -0.6 -280 -

50 -2 -

2362.884015010

70.8

1,600250

7.5

8 -0.02 -700 -120 -

2 -

8001.52,60065013

Wet season

Discharge (gal/min) .... Zinc/copper (weight ratio)

40 - 80 3 - 6

100 - 200+ 3 - 6

Dry season

Discharge (gal/min) .... Zinc/copper (weight ratio)

-20 4 - 9

~ 10 - 13

INTERPRETATION OF HYDROGEOCHEMICAL DATA

All available historical and recent data on water quality and discharge rates were compiled for the Boulder Creek area to aid in the interpretation of subsurface hydrogeology and hydrogeochemistry at Iron Mountain. The tables of data and corresponding time-series plots are included as appendixes to this report and include (1) daily precipitation data at Kennett and Shasta Dam, 1940-91 (Appendix A, table Al, fig. Al) and a monthly summary (table A2), (2) data for discharge, pH, and copper, zinc, and cadmium concentrations for the Richmond and Lawson portal effluents (Appendix B, tables Bl and B2), (3) data for discharge, and copper, zinc and cadmium concentrations for influent and effluent from the Boulder Creek copper cement plant (Appendix B, table B3), and (4) data for discharge, and copper, zinc, and cadmium concentrations for influent and effluent from an emergency plant that treated the Richmond portal discharge by lime neutralization during the wet seasons of 1989-90 and 1990-91 (Appendix B, table B4). Time-series plots of these data were prepared both for decades and individual years and are given in Appendix C (figs. C1-C94).

HYDROGRAPH CORRELATIONS BETWEEN RICHMOND AND LAWSON PORTAL EFFLUENTS

Graphical comparison of discharge rates from the Richmond portal and those from the Lawson portal based on weekly monitoring data from 1983-91 (fig. 3) indicates a generally positive correlation; however, significant differences between the two portals are apparent. The Richmond portal shows a much larger range in discharge, from 8 to 800 gal/min, whereas the Lawson portal discharge fluctuated only between 15 and 230 gal/min in the same period. Minimum flow rates during dry-season conditions are about twice as high at the Lawson portal as at the Richmond portal, which indicates that the Lawson Tunnel receives a greater component of steady ground-water inflow than the Richmond Mine and is less influenced by rapidly infiltrating surface waters.

In a typical wet season, the Richmond adit responds earlier than the Lawson Tunnel by several weeks with increased discharge after storms. An example of this behavior is the 1986-87 wet season

1000

LU

1000

, , , , I . i i i I . . i . I

and

0 50 100 150 200 250

DISCHARGE FROM RICHMOND PORTAL, IN GALLONS PER MINUTE

Figure 3. Correlation of discharge from LawsonRichmond portals, 1983-91. Solid line

indicates linear regression: y*=0.19x+16.5. A All data. B, Discharge less than 250 gallons per minute.

(fig. 4). In early- to mid-December 1986, Richmond portal discharge was less than Lawson discharge; however this relation reversed in late December, after storms caused an increase in Richmond portal discharge but had virtually no effect on Lawson portal discharge. Similarly, rainfall during the latter half of

U_ CD

O uj

iio

15.0

10.0

5.0

0

UJH

Z

o oc

ICO O Z (0 O

oZ

200

100

v- -o--

- Richmond Lawson

(0 UJX O

s o1986

N M-V-

A 1987

M

Figure 4. Time-series plot of the ratio of zinc to copper and the discharge of Richmond and Lawson portal effluents, and rainfall at Shasta Dam, July 1986-June 1987.

January and early February caused increased dis charge from the Richmond portal and virtually no change in the Lawson portal discharge. In mid- February, immediately after the season's most intense storm, the Lawson discharge finally began to increase, after which the two discharges responded in a parallel manner to the storms in early March.

Although the Richmond adit is located at an elevation about 400 ft above the Lawson Tunnel, the uppermost workings in both the Richmond and Hornet Mines are located within 200 to 300 ft of the present surface (fig. 2), so the differences between the hydrograph response at the two portals cannot be explained simply by the difference in elevation. The differences in response to storms may be due in part to the different mining methods used in the Richmond

Mine (underhand sloping and room-and-pillar) as compared with those used in the Hornet Mine (block caving), which resulted in different degrees of fracture, rubblization, and collapse (D. Smith, CH2M Hill, oral commun., 1991). Apparently, the Richmond Mine area has better hydrologic connectivity through open fractures to the surface.

In summary, the steady-state base flow of ground water during dry-season conditions is about twice as high into the Lawson Tunnel as into the Richmond Mine. During the early part of each wet season, only the Richmond adit discharge rate increases in response to storms. Apparently, some degree of saturation must be attained each wet season before rapidly infiltrating surface water can reach the Lawson Tunnel within a few days of a storm.

GEOCHEMICAL CORRELATIONS BETWEEN RICHMOND AND LAWSON PORTAL EFFLUENTS

If there is a direct hydrologic connection between the Richmond mine workings and the Lawson Tunnel, such as an open passageway, and if most of the dissolved metals in the Lawson effluent are derived from the Richmond deposit, then one would expect to see a strong positive correlation between metal concentrations in water samples taken simultaneously from the Richmond and Lawson portals. Concentra tions of copper and zinc from the two portals for 1983-91 are plotted in figure 5. These plots show very poor correlations, which indicate that such a direct hydrologic connection is unlikely. Even considering the possibility of a time lag of up to several days or weeks to account for a tortuous flow path between the two sets of mine workings, one would expect better correlations on the plots if a significant proportion of the metals in the Lawson portal effluent were derived from the Richmond mine via a direct hydrologic connection.

Copper concentrations tend to increase sharply with the onset of high-flow conditions in both the Richmond and Lawson portal effluents, whereas zinc and cadmium concentrations tend to decrease (Nordstrom and others, 1990; Crowe, 1990). Zinc and cadmium concentrations correlate very well together throughout all variations in discharge. This correlation is to be expected on the basis of chemical properties and could be used to predict cadmium concentrations for waters with data for zinc only. The generally positive correlation between discharge and concentrations of copper suggests that copper- bearing sulfate salts are dissolved in flushing-out events after prolonged dry periods, whereas zinc concentrations tend to be diluted during the high-flow conditions.

As indicated in table 1, there is a striking difference in the Zn/Cu ratios of Richmond and Lawson portal effluents under low-flow conditions; however, during high flow less distinction between the ratios is apparent. This relation is illustrated graphically in figure 6, a plot of Zn/Cu ratio and discharge for both Richmond and Lawson effluents during 1983-91. At low-flow conditions (for example, less than 50 gal/min) the Lawson portal effluent had Zn/Cu values from 3 to 10 with most values from 5 to 8, whereas the Richmond portal

600

oc tu

OC til 0.

500 -

400

300

200

100

00 100 200 300 400 500 600

-3000

UJ Oz o o

2500 -

2000

1500

1000

500

B

<X> o

o o

0 500 1000 1500 2000 2500 3000

CONCENTRATION, IN MILLIGRAMS PER LITER RICHMOND PORTAL EFFLUENT

Figure* 5. Copper and zinc concentrations of Richmond and Lawson portal effluents, 1983-91. A, Copper. B, Zinc.

effluent had Zn/Cu ranging from 4 to 13 with most values from 7 to 12. In contrast, at high-flow conditions, both effluents had Zn/Cu in the range of 2 to 6, with most values between 3 and 5; nevertheless, the Lawson Zn/Cu ratios remain somewhat lower than those for the Richmond effluent even ai: the highest discharge rates (fig. 6).

The differences in Zn/Cu ratio between the Richmond and Lawson effluents provide a strong indication that the two tunnels drain different parts of the mine workings. A straightforward explanation for the difference is a variation in the bulk Zn/Cu ratio of the original sulfide ore. This explanation is consistent with the limited amount of available data on metal zoning within the Richmond and Hornet deposits. The Richmond Extension is known as a zinc-rich part of the mining district, and the Hornet and adjacent Mattie ore bodies are relatively copper-rich (Shaffer, 1953). More quantitative information on ore reserves and production figures from individual stopes within these mines is not available. Nevertheless, from what is known about sulfide zoning in other massive sulfide deposits (for example, Ohmoto and others, 1983) primary sulfide zoning is a likely explanation for the difference in Zn/Cu ratio between Richmond and Lawson effluents during low-flow conditions.

Additional insight is gained into the systematic covariation of zinc and copper by examining a plot of the weight ratio of Zn/Cu in the Lawson effluent as compared with that of Zn/Cu in the Richmond effluent (fig. 7). As with the absolute values of zinc and copper concentration (fig. 5), a nearly perfect positive correlation on this type of plot would be expected if all the metals in the Lawson effluent were derived by dilution of Richmond Mine water that had leaked down to the Lawson Tunnel. Rather than a simple linear correlation, figure 7 shows a more complex, arcuate cluster of data, with numerous outlying points. Examination of the data on an annual basis for the years 1983-91 (fig. 8) reveals a systematic counterclockwise movement with time during several of the most recent wet-season cycles. For example, in 1984-85, the Richmond Zn/Cu ratio dropped dramatically during November while the Lawson value was unchanged, causing movement to the left (fig. 8£). This behavior is consistent with hydrographs (fig. 9), which show a delayed response by the Lawson Tunnel effluent to the precipitation in early November 1984. By mid-November, the Lawson effluent had begun to respond and the Lawson Zn/Cu ratio dropped, though not as dramatically as the previous drop in the Richmond Zn/Cu ratio. By mid-December, Zn/Cu in the two effluents was approximately equal. A similar counterclockwise pattern is evident for each of the years from 1985-86 through 1988-89. The data for 1983-84 were collected too late in the water year to

15.0 i i i i I i i i i i i rn r~r~i r~i i I i n r

IgHI

CD

of111 Q. Q. O O

O

N Li. O

g< cc

12.5 -

10.0

A RICHMOND PORTAL

LAWSON PORTAL

2.5 -

Q I I I I I I I I I I I I I I I I I I I I I I I I L

0 50 100 150 200 250

DISCHARGE, IN GALLONS PER MINUTE

Figure 6. Concentration ratios of zinc to copper as a function of discharge, Richmond and Lawson portal effluents, 1983-91.

Q U l I I I I I I I I I I I I I

RATIO OF ZINC TO COPPER, BY WEIGHT RICHMOND PORTAL EFFLUENT

Figure 7. Concentration ratios of zinc to copper in effluent from the Richmond portal compared to that of the Lawson portal, 1983-91.

15.0

12.5

10.0

7.5h-

2 50 uj 3 - u

m. D 2.5UJ t Q. UJ

S<! °opOg 15.0

N£ 12.5

-' ' ' ' I ' ' ' ' I ' ' ' ' I ' ' ' ' I ' ' ' '

AL 1983-84

10.0

7.5

5.0

2.5

0

h CL. 1985-86

2.5 5.0 7.5 10.0 12.5 15.0

15.0

12.5

10.0

7.5

5.0

2.5

0

15.0

12.5

10.0

7.5

5.0

2.5

0

RATIO OF ZINC TO COPPER,

2.5 5.0 7.5 10.0 12.5 15.0

BY WEIGHTRICHMOND PORTAL EFFLUENT

Figure 8. Concentration ratios of zinc to copper in effluent from the Richmond portal compared to that of the Lawson portal, by year, 1983-91. A, 1983-84. a 1984-85. C, 1985-86. D, 1986-87. £1987-88. F, 1988-89. G, 1989-90. H, 1990-91. Solid symbol indicates firsi data point of each month. Solid line connects data points in chronological order.

record the full cyclic pattern. Zn/Cu data for 1989-90 and 1990-91 seem to be more complicated; however, it must be kept in mind that these years had total precipitation much below the annual average for the area and may not be typical. Possible influence of the partial capping work completed in 1988 and the

underground renovations in the Richmond Mine completed in 1990 may also be a factor. Data from a more i;ypical wet season would be required to clarify whether or not this work has caused a fundamental change in the mine hydrology andhydrogeochemistry.

10

ICD

> UJ CD D

Q- -I 0<°£og»- CL

i Z? oNeo

15.0

12.5

10.0

7.5

5.0

2.5

0

15.0

12.5

10.0

7.5

5.0

2.5

0

\-' ' ' ' I ' ' ' ' I ' ' ' ' I ' ' ' ' I ' ' ' ' I

GL 1989-90

2.5 5.0 7.5 10.0 12.5 15.0

15.0

12.5

10.0

7.5

5.0

2.5

0

15.0

12.5

10.0

7.5

5.0

2.5

2.5 5.0 7.5 10.0 12.5 15.0

RATIO OF ZINC TO COPPER, BY WEIGHT RICHMOND PORTAL EFFLUENT

Figure 8. Continued.

A possible mechanism to explain these variations in Zn/Cu ratios involves the precipitation and dissolution of Fe-Zn-Cu-bearing sulfate salts. The salts tend to form during drying-out periods or low-flow conditions, and then dissolve rapidly during flushing-out episodes after large storms. For this mechanism to explain the observed variations in effluent Zn/Cu ratios, the precipitated salts must have

a lower Zn/Cu ratio than the mine waters from which they form. Thus, copper must be preferentially removed from the water compared to zinc during salt formation, causing the Zn/Cu ratio of the water to rise during the drying-out periods. Flushing during high-flow conditions dissolves the sulfate salts, which then have a large influence on the chemistry of the mine water. In several cases, copper concentrations

11

Q UJ

U_ CD

O UJ

10

UJI-

200

_ - UJ

liCO O

o ii o

CO LUXo

100

0

6

- -o---Richmond Lawson

* 4

<DC ij i i

S 1984

M '

1985M

Figure 9. Time-series plot of the ratio of zinc to copper and the ^discharge of Richmond and Lawson portal effluents, and rainfall at Shasta Dam, July 1984-June 1985.

have actually increased during flushing while zinc concentrations decreased, causing a dramatic decrease in the Zn/Cu ratio (figs. 4, 9; see Appendix C, figs. C55-C58 and C63-C66).

A mineral commonly found in the accessible part of the Richmond Mine, which meets the requirement of having a lower Zn/Cu ratio than the mine water from which it forms, is melanterite. Pure melanterite (FenSO4»7H2O) incorporates Cun and Zn11 as solid- solution components in substitution for Fe11. One sample of melanterite taken from a large, actively forming stalactite in B-drift, 2,600-foot level,

Richmcnd Mine, had theFe0.945 Zn/CumelanteriteZn/Cucoppersolid prZn/Cufound iro'meri[K2Fen

[FenAl

molar composition ) ' corresponding to a

weight ratio of 2.0. This zinc-copper-was forming from a mine water with a

weight ratio of 3.3, so it can be seen that ,vas incorporated preferentially to zinc into the ase. Work is in progress to determine the atio in other Fen-bearing sulfates that were i samples from the Richmond Mine, such as

[FenFem2(SO4)4 «14H2 O], voitaite5FeuI4(SO4) 12«18H2O], and halotrichite (SO4)»22H2Oj. Melanterite is probably the

12

most abundant sulfate formed in the Richmond Mine in the inaccessible workings above the 2,650-foot level, because this mineral is the first to form when the Fen-rich Richmond effluent is evaporated (Alpers and others, 1991).

Therefore, it is an entirely plausible hypothesis that formation and dissolution of zinc-copper-melanterite can account for the observed cyclic variations in Zn/Cu ratios in the Richmond adit and Lawson Tunnel effluents. Although relatively pure sulfates of copper (chalcanthite) and zinc (goslarite) have been found in samples from the 2,600-foot level of the Richmond Mine (C. N. Alpers and R.C. Erd, U.S. Geological Survey, unpub. data) they are volumetri- cally minor. It is likely that melanterite and other iron-rich sulfate solid solutions represent the predom inant forms of copper and zinc available for dissolut ion. Therefore, it is probably the formation and dissolution of the iron-rich sulfate minerals that control the concentrations of copper and zinc in the effluents.

MASS-BALANCE CALCULATIONS

Three possibilities for explaining the origin of dissolved constituents in the Lawson portal effluent are (1) all dissolved constituents including metals and acidity are derived from oxidation of sulfides and dissolution of silicates within the Hornet mine workings and adjacent country rocks; (2) all dissolved metals and acidity are derived from oxidation of sulfides in the workings of the Richmond and Richmond Extension Mines and these waters then mix with extremely dilute waters to produce the Lawson portal effluent; (3) a combination of 1 and 2 in which Richmond Mine water mixes in some proportion with water that has previously interacted with sulfides and silicates in the Hornet Mine.

In this section, the three possible origins of Lawson portal effluent are evaluated by mass-balance calculations. Samples of Lawson and Richmond portal effluent collected September 20, 1990, were

used for the mass-balance analysis. Compositional data for these water samples are given in table 2. Charge balance was achieved within 4 percent using program PHREEQE (Parkhurst and others, 1980) by adjusting sulfate concentrations. Molalities were computed using program WATEQ4F (Ball and others, 1987).

Straightforward mass-balance calculations were made using program BALANCE (Parkhurst and others, 1982) to determine the proportion of minerals required to be dissolved and(or) precipitated to account for the composition of Richmond portal effluent and Lawson portal effluent. The BALANCE program is designed to help deduce mineral-water reactions that occur between two water samples along a flow path. For this study, the starting water composition was assumed to be that of rainwater. Because the dissolved concentrations in the mine waters are extremely high, concentrations in rainwater values are virtually insignificant. Thus, the effluent compositions were taken as equal to the delta, or "final-initial," value for the purpose of the BALANCE calculation. The minerals considered as possible reactants and products are given in table 3. Additionally, C02 and 02 gas were included as potential reactants or products. Other examples of this modeling approach were described by Alpers and Nordstrom (1990, 1991).

Results of the separate mass-balance calculations are given in table 4. For the Richmond effluent, two possible solutions (Rl and R2) were found. The two Richmond solutions differ from each other primarily in the source of calcium as either epidote or calcite. In both models, similar proportions of pyrite, sphalerite, and chalcopyrite are oxidized to produce the observed iron, zinc, and copper in solution, less a significant amount of iron (0.70 of 1.07 moles) which is retained as a melanterite precipitate. Albite, chlorite, and sericite also dissolve to produce the observed concentrations of sodium, aluminum, magnesium, and potassium. Some of the released silica is reprecipitated, probably in the form of amorphous silica in the country rock.

13

Table 2. Composition of Lawson and Richmond portal effluents

[Molality values computed using program WATEQ4F (Ball and others, 1987) and used as input to program BALANCE (Parkhurst and others, 1982). °C, degree Celsius; --, no data]

Lawson portal effluent Richmond portal effluent

Milligrams per liter1

Iron (total) .........Copper ............Zinc ..............Sodium ............Potassium ..........Calcium ...........Magnesuim .........Ammunim ..........Silica .............

Sulfate ............Sulfate (adjusted)2 ....

6,940 92.5

653 80.4 88.3

233 681

1,180 110

29,600 24,200

Molality

0.1287 .00151 .0103 .00362 .00234 .00602 .0290 .0453 .00190

.2608

Milligrams per liter1

18,600 290

2,060 255 281 183 850

2,320 165

108,000 121,790

Molality

0.3904 .00535 .0369 .0130 .00842 .00535 .0410 .1008 .00322

1.486

Redox State3 1.842

pH (units) ......................... 2.5

Temperature (°C) .................... *28

10.183

0.4

28

Analytical data from U.S. Environmental Protection Agency for samples taken September 20, 1990(unpublished data).

2Sulfate value adjusted to achieve charge balance using program PHREEQE (Parkhurst and others, 1980). 3Redox State (RS) parameter required by program BALANCE. RS = 6 mSO4 + 2 mpe/jj) + 3 Hipe/jjjy Speciation of iron computed by program WATEQ4F assuming Eh based on

measured values of Fe(II) and Fe(Total) from a Richmond portaaverage of 22 samples from the Lawson portal effluent taken from December 1983 through May 1984.

Temperature value assumed for Lawson portal effluent.

Results for the Lawson effluent are similar (table 4). Three possible solutions were found (LI, L2, and L3), which differ from each other primarily in the sources and sinks of calcium and aluminum. Solution LI is probably not viable because the pH of Lawson effluent is too low to produce kaolinite as the BALANCE model predicts. It is important to stress that these solutions are based solely on mineral stoichiometry and water compositions and not on any thermodynamic or solubility constraints. Comparison of the mineral saturation indices from aqueous

sample taken September 11, 1990, and from an

speciation calculations, using a program such as WATEQ4F (Ball and others, 1987, Ball and Nordstrom, 1991) can provide a thermodynamic check on the viability of a given BALANCE model. All phases indicated in table 4 as dissolving are indeed undersaturated in both the Lawson and Richmond portal effluents considered, and silica and melanterite are near to saturation, so both solutions L2 and L3 represem: reasonable possibilities for explaining the overall inactions that produced the Lawson portal effluent.

14

Table 3. Composition of minerals considered in mass-balance computations

[References: 1, Kinkel and others (1956); 2, Reed (1984)]

Mineral

albite

sericite

kaolinite

epidote

chlorite

quartz

calcite

pyrite

chalcopyrite

sphalerite

melanterite

Formula

isjo r*n \\ c; o 1Nd0.96v-d0.04m1.04'M2.96u8

Ko.7oNao.i2(H30)o. 16AlL91Mg0.06FeII0.o2(Alo.9Si3.l)Olo(OH);

Al2Si2O5(OH)4

Ca1.96FeII0.88Mg0.05Al2.05Si3.04°12(°H)

MS2.95Fe 0.88A1Octl.82A1tet0.81 Si2.82°lo(°H)8

SiO2

CaCO3

FeS2

CuFeS2

Zn0.933Fe0.062Cu0.005S

FenSO4-7H2O

References

1

2 2

2

2

2

Hypothesis 2, that all metals in the Lawson effluent are derived from the Richmond Mine, is unreasonable because there are no possible solutions to this version of the mass-balance problem. That is, there is no way to start with Richmond portal effluent and to come up with Lawson portal effluent simply by dilution and non-sulfide mineral dissolution and precipitation reactions.

Hypothesis 3, that some mixing of Richmond mine water and Hornet mine water occurs in the Lawson Tunnel, was evaluated using the mixing feature of the BALANCE program. Results of the mixing computa tions are given in table 5. Six possible solutions were found; however, only the first three (Ml, M2, and M3) are reasonable. Solutions M4, M5, and M6 have two flaws: (1) sphalerite and chalcopyrite were oxidized but pyrite was not, and (2) melanterite is

dissolved, not precipitated, despite the fact that the sampling was done in September 1990 during an extreme low-flow condition.

Therefore, the results from solutions Ml, M2, and M3 (table 5) are left. These results indicate that only about 2 percent of the Lawson effluent can be made up of Richmond mine water, and the other 98 percent must come from water affected by additional sulfide oxidation and silicate dissolution reactions, most likely to be taking place in the Hornet Mine area. Because the Richmond mine waters are about three times more concentrated than the Lawson effluent, the 2 percent contribution by volume may represent as much as 6 percent of the dissolved metals. Therefore, during low-flow conditions, the production of acidic mine drainage from the Hornet ore body far out weighs any leakage contribution from the Richmond Mine.

15

Table 4. Results of separate mass-balance computations for Lawson and Richmond portal effluents

[Computations made using program BALANCE (Parkhurst and others, 1982); input data for water compositions in table 2. Phase: Phase compositions in table 3. Forcing: "+" denotes dissolution/in-gassing only;"-" denotes precipitation/out-gassing only; no symbol allows either. Mass transfer: Positive coefficient denotes dissolution/in-gassing; negative coefficient denotes precipitation/out-gassing, moles/kg, moles per kilogram; --, no data]

Lawson portal effluent

Mass tnmsfer (moles/kg H2O of Lawson effluent)

Phase

albiteepidote kaolinitechloritesericitepyrite chalcopyrite sphalerite melanteriteO2 gas silicacalciteCO2 gas

Forcing Solution LI

+ 0.0034

Solution L2

0.0034+ .0030 .0016

-.0014+ .0097 .0097+ .0033 .0033+ .1315 .1303 + .0015 .0015 + .0111 .0111 + -.0162 -.0137

.4918 .4878 -.0520 -.0506

+

.0028-.0028

Solution L3

0.0034

.0016

.0098

.0033

.1289

.0015

.0111 -.0110.4834

-.0490.0059

-.0059

13 models were tested3 models were found which satisfied the constraints

Richmond portal effluent

Mass transfer (moles/kg H2O of Richmond effluent)

Phase Forcing Solution Rl Solution R2

albite + 0.01 epidote + .00 kaolinite .00 chlorite + .01 sericite + .01: pyrite + 1.06 chalcopyrite + .00 sphalerite + .03! melanterite + -.69? O2 gas 3.83.' silica -.12* calcite +CO2 gas


10 0.0120 24 13 .0068 56 .0137 10 .0120 77 1.0656 52 .0052 )5 .0395 )2 -.6950 37 3.8269 H -.1217

.0047-.0047

16

Table 5. Results of mass-balance mixing computations

[Computations made using program BALANCE (Parkhurst and others, 1982); Lawson portal effluent composition was derived from mixing of Richmond portal effluent with dilute water, accompanied by mineral-water reactions. Phase: Solid and gas phase compositions in table 3. Aqueous phase compositions in table 2. RICHMOND = Richmond portal effluent, September 20,1991; DILUTION = Hypothetical diluting solution with arbitrarily low aqueous concentrations of 10~6 molal for each element considered. Forcing: "+" denotes dissolution/in-gassing only; "-" denotes precipitation/out-gassing only; no symbol allows either. "F" indicates that phase was forced to be in each model tested. Mass transfer: Positive coefficient denotes dissolution/in-gassing; negative coefficient denotes precipitation/out-gassing, moles/kg, moles per kilogram; -, no data]

Solutions

Phase Forcing Ml M2 M3 M4 M5 M6

Mixing proportions

RICHMOND DILUTION

+ F + F

0.0158 .9842

0.0194 .9806

0.0231 .9769

0.1210 .8790

0.1216 .8784

0.1232 .8768

Mass transfer (moles/kg H2O of Lawson effluent)

albiteepidotekaolinitechloritesericitepyritechalcopyritesphaleritemelanteriteO2 gassilicacalciteCO2 gas

+ 0.0032+

.0015+ .0095+ .0031+ .1120+ .0014+ .0105+

.4228-.0471

+ .0058-.0058

0.0031.0014

.0095.0031.1095.0014.0103

~.4132

-.0481.0030

-.0030

0.0031.0029

-.0015.0094.0031.1068.0013.0102

.4031

-.0491--~

0.0019

.0007

.0081

.0019

.0008

.0063

.0731

.0205-.0343.0053

-.0053

0.0019.0007

.0081.0019

--.0008.0063.0722.0202

-.0350.0038

-.0038

0.0019.0027

-.0020.0080

~.0008.0062.0699.0197

-.0367..-


CONCLUSIONS

Five factors lead to the conclusion that there is major production of acidic mine drainage from the Hornet Mine appearing in the Lawson Tunnel effluents:

1. Approximately one million tons of pyritic sulfide still remains in the Hornet Mine area on the basis of production and reserve estimates.

2. Three-dimensional computer models of ground- water flow indicate significant inflows of ground water along the sides of the Hornet Mine.

3. Hydrograph records of Richmond adit and Lawson Tunnel discharges show inadequate correlation to indicate any significant hydrologic connection.

4. Geochemical correlations between Lawson and Richmond portal effluents are poor for individual metals such as copper and zinc. The Zn/Cu ratio is correlated somewhat, but has a lag time of as much as several weeks at the beginning of each wet season. During the early part of the wet season, the Richmond adit responds to rapid infiltration of surface water with increased discharge and a sharp decrease in

17

Zn/Cu ratio. The Lawson portal effluent tends to respond several weeks later in a similar manner, but with less amplitude (that is, a damped signal), because of the higher proportion of base-level flow into the Lawson Tunnel.

5. Mass-balance considerations preclude the possibility that simple flow from the Richmond Mine is diluted with clean ground water to produce the Lawson portal effluent composition during low-flow conditions. Even allowing for additional geochemical reactions, the contribution of flow from the Richmond Mine directly to the Lawson Tunnel cannot be more than 2 percent by volume during low-flow conditions.

Any remediation alternatives in the Boulder Creek Operable Unit at Iron Mountain have to consider the Hornet Mine area to be producing its own acid mine drainage, which drains out the Lawson portal, independent of the acidic drainage from the Richmond Mine hydrogeologic system, which drains out the Richmond portal.

REFERENCES CITED

Alpers, C.N., Maenz, C., Nordstrom, O.K., Erd, R.C., and Thompson, J.M., 1991, Storage of metals and acidity by iron-sulfate minerals associated with extremely acidic mine waters, Iron Mountain, California: Geological Society of America, Abstracts with Programs, v. 23, no. 5, p. A382.

Alpers, C.N., and Nordstrom, O.K., 1990, Stoichiometry of mineral reactions from mass-balance computations of acid mine waters, Iron Mountain, California, in Gadsby, J.W. and others, eds., Acid Mine Drainage-Designing for Closure: Vancouver, Bi-Tech Publishers Ltd., p. 23-33.

___1991, The geochemical evolution of extremely acid mine waters at Iron Mountain, California: Are there any lower limits to pH?: International Symposium on the Abatement of Acidic Drainage, 2d, Montreal, September 16-18, 1991, Proceedings, v. 2, p. 321-342.

Ball, J.W., and Nordstrom, O.K., 1991, User's manual for WATEQ4F, with revised thermodynamic data base and test cases for calculating speciation of major, trace, and redox elements in natural waters: U.S. Geological Survey Open-File Report 91-183, 189 p.

Ball, J.W., Nordstrom, O.K., and Zachmann, D.W., 1987, WATEQ4F--A personal computer translation of the geochemical model WATEQ2 with revised data base: U.S. Geological Survey Open-File Report 87-50,108 p.

Biggs, F.R., 1991, Remediation progress at the Iron Mountain Superfund site, California: U.S. Bureau of Mines Information Circular IC-9289, 15 p.

CH2M Hill, 1985, Final remedial investigation report, Iron Mountain Mine, near Redding, California: U.S. Envir onmental Protection Agency, EPA 48.9L17.0, 319 p.

Crowe, C.N., 1990, Hydrologic and hydrogeologic factors controlling acid mine drainage at Iron Mountain Mine, Shasta County, California: Chico, California State University, unpub. M.S. thesis, 133 p.

Gupta, S.K., Cole, C.R., Kincaid, C.T., and Monti, A.M., 1987, Coupled fluid, energy, and solute transport (CFEST) model: Formulation and user's manual: Columbus, Ohio, Office of Nuclear Waste Isolation, Batclle Memorial Institute, Report BMI/ONW 1-660.

Kinkel A.R., Jr., Hall, W.E., and Albers, J.P., 1956, Gee logy and base-metal deposits of the West Shasta cop)er-zinc district: U.S. Geological Survey Professional Paper 285, 156 p.

McDor aid, M.G., and Harbaugh, A.W., 1988, A modular, thre^-dimensional finite-difference ground-water flow model: U.S. Geological Survey Techniques of Water- Resources Investigations, book 6, chap. Al, 586 p.

Muniz, I.P., and Leivestad, H., 1980, Acidification-Effects on freshwater fish, in Drabl0s, D., and Tollan, A., eds., Ecological Impact of Acid Precipitation, Oslo, Norway, S.N.S.F. Proceedings, p. 84-92.

Nordstrom, O.K., 1977, Hydrogeochemical and microbiological factors affecting the heavy metal chemistry of an acid mine drainage system: Stanford, California, Stanford University, unpub. Ph.D. dissertation, 210 p.

Nordstrom, O.K., Burchard, J.M., and Alpers, C.N., 1990, Production and seasonal variability of acid mine drainage from Iron Mountain, California: A Superfund site undergoing rehabilitation, in Gadsby, J.W. and others, eds., Acid Mine Drainage-Designing for Closure: Vancouver, Bi-Tech Publishers Ltd., p. 13-21.

Nordstrom, O.K., Jenne, E.A., and Averett, R.C., 1977, Heavy metal discharges into Shasta Lake and Keswick Reservoirs on the upper Sacramento River, California: A reconnaissance during low flow: U.S. Geological Survey Open-File Report 76-49, 25 p.

Ohmotc, H., Mizukami, M., Drummond, S.E., Eldridge, C.S., Pisutha-Arnold, V., and Lenagh, T.C., 1983, Chemical processes of Kuroko formation, in Ohmoto, H. and Skinner, B.J., eds., The Kuroko and Related Volcanogenic Massive Sulfide Deposits: Economic Geology Monograph 5, p. 570-604.

Parkhurst, D.L., Plummer, L.N., and Thorstenson, D.C., 1982, BALANCE-A computer program for calculating mass transfer for geochemical reactions in ground water: U.S. Geological Survey Water-Resources Investigations Report 82-14, 29 p.

Parkhurst, D.L., Thorstenson, D.C., and Plummer, L.N., 1980, PHREEQE-A computer program for geochemical calculations: U.S. Geological Survey Water-Resources Investigations Report 80-96, 193 p. (Revised January 1985.)

Reed, I\ [.H., 1984, Geology, wall-rock alteration, and mass ive sulfide mineralization in a portion of the West Shasia district, California: Economic Geology v. 79, p. 1299-1318.

Shaffer, L.E., 1953, Underground and surface reserves of the Mountain Copper Company, Ltd., at Matheson and Martinez, California: Unpublished memorandum from South western Engineering Co. to Mountain Copper Co., January 1953, 11 p.

18

APPENDIX A

PRECIPITATION DATA AT SHASTA DAM AND NEARBY LOCALITIES

Sources of Precipitation Data

Shasta Dam

The precipitation data compiled in this report (table Al) are primarily from measurements recorded at Shasta Dam, Shasta County, California, at an elevation of 1,075 ft. above sea level. The gage at Shasta Dam is located at latitude 40°42'53" N, longitude 122°24'54" W.

Data have been collected at the Shasta Dam site since only after Lake Shasta had filled in 1945 and weather patterns Dam begins in January 1944.

1939, but are considered to be "consistent" had stabilized. Published data for Shasta

The U.S. Bureau of Reclamation (USBR), which operates Shasta Dam, has maintained daily operations sheets for the Central Valley Project since September 1957, and has tabulated monthly totalssince 1945. The USBR sends the daily operations sheets to the U.S. National Weather Bureau forinclusion in monthly publications of Climatological Data, organized by State. The manually kept daily operations sheets are accompanied by tapes from the automatic rain gages.

The library of the U.S. Geological Survey has in its collection the monthly reports of Climatological Data for California since 1900. These reports were originally published by the U.S. Department of Agriculture; since July 1940, they have been i published by the U.S. Department of Commerce.

Kennett

The town of Kennett is located north of Redding Precipitation was measured each morning, for the preceding 24 sea level.

and east of the present Shasta Dam. hours at an elevation of 778 feet above

Data from Kennett was listed as "supplemental precipitation" in monthly reports of Climatological Data since 1907. The final report from Kennett was in January, 1943.

Description of tables and figures in appendix A

Table Al includes daily precipitation data, in inches, from the Kennett station for 1940-42 and from the Shasta Dam station for the period from January 1, 1944, through April 11, 1991. No data are available for 1943 from either station. Data missing in the monttly publications are marked "M" on table Al. This designation indicates that the report failed to arrive by publication time, so these data should be found in the corresponding annual report. Other symbols in table Al include: "R" to designate a recording gage as opposed to a manual measurement, as both were reported for the first few years of operation; and "*" which indicates that the precipitation for a given day is included in the following measurement. TR or T indicates trace.

Table A2 is a compilation of the monthly totals for the precipitation data from Shasta Dam, 1944-91. Figure Al is a time-series plot of the data in table A2, plus monthly totals from the Kennett station for 1940-42.

20

Table Al. Daily precipitation data, in inches, from Kennett and Shasta Dam, 1940-91

DAILY PRECIPITATION AT KENNETT

1940 JAN FEE MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC

12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 3031Total

1941

12345678910111213141516171819202122232425262728293031Total

1.73 2.95 1.30 2.86

0.39 0.68 1.07 2.00 1.65 0.54

0.21 0.35 2.67 3.40 0.14

TR21.94

JAN

_

0.430.610.972.321.33

0.513.471.180.18

1.280.981.122.511.942.192.023.05

26.09

0.08 0.06 2.99 1.34 0.59 0.85

0.08

0.57 1.70

0.04 3.44 0.01

0.10 0.01 0.05 1.12 0.70 5.41 7.10 0.23

26.47

FEB

0.340.04 0.700.440.942.570.931.490.37 0.020.020.350.040.59 0.120.150.281.88 1.002.69

14.96

0.23

0.33

0.02 1.16 2.12 2.62 0.42 3.06 7.922.9120.78

MAR

1.431.061.140.79 ~~ ~ __.. _- _. 0.050.611.242.598.91

0.03

0.85 1.35 0.03

0.65 0.27 0.04

TR 1.06 0.22 0.20

4.79

APR

0.612.131.963.962.04~0.07 0.281.130.26 0.09 ._.___ ._ 0.07 ..0.190.83

13.62

0.36 0.41 0.03

0.280.611.69

MAY

_ 1.500.940.39~ 0.010.06_. 0.151.500.23 __TR.... 0.480.05 0.990.170.336.80

0.03 0.13

0.17 0.09

0.01

0.06

0.14 TR

TR

0.14

-.0.16 0.0 0.0 0.61

JUNE JULY AUG SEPT

0.05 - - 0.25 -__. .-_. 0.020.16 -- 0.010.01 -- -- 0.07-..--.0.140.100.730.34

-.1.55 0.0 0.01 0.32

0.20

0.02

2.54 1.04

0.04

0.72 0.230.014.80

OCT

_ ~

0.240.04 ..-.

0.20 _. .__.

1.600.620.02 TR

2.72

0.20 2.11 0.19

0.18 0.05 0.83 0.09

3.65

NOV

_0.530.140.21.. .. _. -.

0.640.110.370.04.._.-.-. ._--......

0.030.212.02

4.30

0.05 2.00 5.70 0.55 2.48 5.82 3.50 2.00 2.16 1.44 2.52 3.36

0.19

_.31.77

DEC

0.141.613.43 ._ .. 0.060.622.903.413.650.083.031.150.84 0.160.53 0.140.120.471.120.700.160.01

24.33

21

Table Al. Continued.

1942 JAN FEE

DAILY PRECIPITATION AT ^CENNETT

MAR APR MAY JUNE JULY AUG SEPT OCT

12345678910111213141516171819202122232425262728293031Total

.. .. 0.739.72 ~ 0.08 0.732.303.342.450.762.130.18 0.080.1113.61

0.883.661.073.420.982.780.670.03 « TR 0.11

13.60

TR 0.57

0.220.610.80

1.12

0.111.571.870.04

0.020.53

1.660.96

1.471.68

1.210.42

0.130.670.020.22

2.20 12.07

0.030.920.290.01

0.650.15

TR0.16

3.360.250.010.450.25

7.74

0.07

1.41

0.04

0.15

NOV DEC

0.34

0.12

0.321.630.143.632.390.01

0.04

1.650.100.030.26

0.42 0.0 0.0 0.07 1.60 10.66 M

22

Table Al .--Continued.

1944 JAN

12345678910111213141516171819202122232425262728293031 Total

0.551.000.06

1.200.75

0.27

0.51

TR

0.560.21

TR 0.30 0.70 6.11

FEB

0.692.704.850.31

0.990.52

DAILY PRECIPITATION AT SHASTA DAM

MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC

0.800400.061.800.02

TR 0.04

TR

1.101.400.45

0.44

1945 JAN

12345678910111213141516171819202122232425262728293031 Total

0.01

0.11TRTR

0.110.02

0.47

0.04

0.150.850.42

0.842.38

14.74

FEB

3.272.171.64

1.48

0.430.16

0.071.43

0.070.01

2.82

MAR

0.03

0.740.240.02

TR

TR 0.08

0.310.042.480.05

0.040.500.601.72

0.630.970.05

TR 0.31

0.010.340.03

1.30 0.23TR

0.12TR

TR0.250.15

0.45 TR TR

0.52 TR

3.71

APR

0.03

0.690.020.290.21

TR

0.200.600.570.060.150.060.03

TR 0.13

0.030.22

0.240.231.322.640.15

0.82

1.181.090.110.460.150.02

2.790.43

0.05

0.281.52

MAY

0.720.02

4.84 0.00

JUNE JULY

TR

0.560.030.08

0.44 0.00

AUG SEPT

TR4.334.58

OCT

0.10

0.01

0.033.183.93

TR

10.73 8.50 0.75

0.35

0.132.400.870.300.290.040.40

TR0.480.240.470.050.080.06TR

TR0.40TR6.56

0.030.360.15

0.08

TR

0.320.10

0.630.51

9.97

NOV

0.10

0.04

0.030.600.100.800.01

0.70 0.020.35 0.200.800.050.98

0.70

1.45 TR

0.87 0.24 0.02

0.121.440.560.26

8.89

DEC

3.032.320.300.40

0.010.01

0.69 0.0 0.10 0.0

0.532.354.04

11.45

0.120.021.700.70

0.461.06

8.62

1.451.371.240.431.170.765.102.351.00

21.14

23

Table Al. --Continued.


1946

12345678910111213141516171819202122232425262728293031 Total

1947

12345678910111213141516171819202122232425262728293031 Total

JAN FEB MAR

0.311.181.680.98

0.380.21

0.15

0.01

0.05

4.98

JAN

0.330.01TR0.050.95

0.03

0.07

0.570.920.12

0.20

0.430.03

3.71

FEB

TR

APR

0.39

0.04

0.380.140.01

MAY JUNE JULY AUG SEPT OCT NOV DEC

TR

TR0.180.12

TR0.110.03

TR 0.13 0.69 0.064.460.86

0.52

0.07

1.04

0.050.020.030.020.110.080.130.11

0.301.000.333.29

MAR

TR1.412.912.25

0.190.472.530.06

TR0.050.061.300.382.470.070.430.05

TR 0.02

0.06

0.96

APR

0.050.76

TR 0.16

0.08

0.060.19

1.180.16

1.59

MAY

0.03

0.060.410.14

TR0.543.910.020.020.813.23

0.01 TR

0.0

JUNE

1.92 0.37 TR

0.790.450.760.640.03

0.980.09

1.07

JULY

0.0

AUG

0.06

SEPT

0.94

OCT

8.53

NOV

0.570.14

0.09 TR

0.10 0.07 TR

0.12

5.12

DEC

0.11

0.010.06

TR

0.12

0.29

0.500.470.330.091.82

0.22

6.94

TR

0.140.030.01

0.470.592.090.56

13.71

0.11

1.09 TR 2.91 1.53

0.292.390.19

0.49

0.230.10

0.06

TR

1.05

0.180.15

0.070.520.93 5.08

24

0.220.03

0.25

TR 0.29

0.35

0.032.620.24

0.11 11.78 1.13

0.590.010.030.620.520.41

0.07

2.43

Table Al.--Continued.


1948 JAN

12345678910111213141516171819202122232425262728293031 Total

1949

12345678910111213141516171819202122232425262728293031 Total

FEE MAR APR

0.111.580.250.371.711.394.410.42 -

____

_. TRTR0.25 0.151.010.11--

0.150.11..

__.. ..__0.01 0.37 --

1.320.34TR0.520.73

2.520.910.090.170.410.020.831.100.21

1.080.810.290.080.02

MAY

0.06

0.12

JUNE JULY AUG SEPT OCT NOV DEC

TR TR 0.25 0.42

0.271.61

0.14

0.23 TR

0.50 0.65 0.22 TR

0.01 TR

0.06

0.582.33 TR0.28 0.29

0.900.550.450.88

0.08

0.05 0.28 0.32 TR

10.24

JAN

0.460.11

0^)3 0.37 0.29

1.26

0.07

0.19

0.62

2.66

FEB

0.300.160.48TR0.78TR

0.431.75

0.09

TR1.181.190.69

0.52 0.12 TR

7.69 19.36

0.23

3.060.750.38

0.400.03

8.14

MAR

0.152.302.390.39

0.36

TR0.292.471.300.760.020.010.611.261.402.111.051.300.030.170.950.04

0.090.220.100.380.11

0.271.50

0.25

0.450.010.30

0.070.04

TR

1.270.11 0.09 0.07

0.02TR

0.460.61 1.001.13 0.302.10 0.78

0.0314.22 3.19

APR

0.04

MAY

0.180.06

0.010.10

0.060.210.08

0.06

0.080.14

2.55

JUNE

0.09

0.37

JULY

0.34

AUG

1.86

SEPT

1.44

OCT

TR

4.06

0.280.340.300.010.120.31TR5.14

NOV DEC

TR TR

0.02

TR0.211.300.870.220.03

0.15

0.030.02

0.10

0.14

0.551.610.073.21 0.09

TR 0.00 0.00

TR

0.15

0.15 0.02

0.180.281.120.020.22

0.04

0.03

TR

2.66 2.06

25


13141516171819202122232425262728293031 Total


1950

12345678910111213141516171819202122232425262728293031Total

1951

123456789101112

JAN

__0.06__ .. _.1.000.132.271.300.11._1.10_0.681.223.070.290.110.580.320.560.02.___0.061.12_. 0.01

14.01

JAN

__~0.420.470.14 ___.0.211.641.69TR

FEB

__.. 2.171.340.39 _._.0.370.04_... 0.270.03.. _. _. ._ __

4.61

FEB

__

0.130.512.362.050.010.010.050.06_.2.990.52

MAR

__.. __0.030.22 _.0.090.10.._..._. TR0.660.021.41._..0.75TR1.440.130.060.24TR.. ._5.15

MAR

TR _.0.310.480.650.360.020.64_

APR

___. __0.370.280.680.21 __0.02 _ _.__..._.. ..

1.56

APR

__ ..

MAY

0.130.480.56TR______ _. ..._._0.45__ _. .. ...._..._____ ..1.62

MAY

0.01TR0.890.900.710.15TRTR.._0.990.03

JUNE JULY AUG SEPT

, _ _ . __ __._ .__._..___0.020.180.78.__. ..TR__._

..

.__.

0.010.120.04

_...

TR0.350.01

_. ..._ .. _.

..0.98 O.C

JUNE JUI

_

0.0 0.53

Y AUG SEPT

__ __._._. __.. __

..

.. _. ..

OCT

__ 0.150.290.13 .. .. .. 2.262.40 TR0.330.671.103.953.832.260.01

17.38

OCT

0.642.360.07 ._0.100.05

NOV

.. 0.030.17 1.121.460.150.340.110.23_. .. ..0.43..

4.98

NOV

_ 0.370.821.90

0.28

2.560.95

0.250.400.890.85

0.660.05

1.540.810.11

0.030.04

TR

0.15

9.57

DEC

5.200.622.221.051.16

TR

0.180.121.850.740.14

1.011.500.02

0.11

0.260.160.07

0.19 TR

10.13 9.48

0.200.04

0.03 0.980.31

0.01

2.47

1.930.040.15

2.36 3.68 0.00 0.00 0.03

0.03

0.03

0.10

0.952.280.68

TR1.430.240.860.432.13

0.580.69

0.36

1.245.500.960.040.12

4.51 12.19 19.74

26



1952 JAN FEB MAR APR MAY JUNE JULY AUG SEPT

TR

0.20

TR

12 3 4 5678910111213141516171819202122232425262728293031Total

1953

12345678910111213141516171819202122232425262728293031Total

0.011.250.211.01TR1.020.780.990.401.590.100.030.50 2.240.090.03__1.390.500.630.01 0.020.040.62

13.46

JAN

0.410.44 _.__0.331.940.243.800.190.040.812.780.68 ~1.072.131.401.700.14 ~ TR.. 0.01

18.11

1.90 1.09 0.49

_. __0.660.06 _.TR0.69 0.010.120.230.010.211.05 ._

6.52

FEB

_ ..TR0.410.18 0.25 .. 0.88TR_.

0.84

0.01 0.50 0.070.440.930.01 ..TR0.420.010.371.760.05 1.680.26 ~ ._ .. 6.51

MAR

0.04 _. 0.030.621.350.03 ._0.15 3.551.320.80TR 0.03 0.02 7.94

-

0.110.02 __._ TR0.34TR_. _. ._ TR0.02 .. 1.13

1.62

APR

_ ____ 0.310.81 ___TR__ 0.25 0.05.... .. 0.122.330.180.450.05

4.55

0.66

0.511.14....._....__.. _. ._0.03 .. .. _____.__2.34

MAY

TR ._..~0.11..0.02 __0.040.250.04.. 0.500.180.230.011.06 1.030.020.10 TR0.030.283.94

--

0.040.03 0.080.04 0.12...._. ..0.030.02TR 1.061.750.12

3.29

JUNE

_0.09 ____0.630.29 0.21 .. 0.63_. __.. ~__

1.85

OCT NOV DEC

2.752.150.27TR1.192.353.960.220.031.241.45

0.13 0.29 3.23 0.89 TR

0.250.17

0.100.10

JULY

0.00

AUG

0.20

SEPT

0.42

OCT

0.150.02

TR 0.05

2.00

0.27

0.00

0.030.02

0.500.10

0.65 0.27 2.22

4.54

NOV

0.05

0.23 0.26 TR

0.111.310.830.032.000.570.070.30

0.23TR0.630.901.830.02TRTR

0.05

9.42

TR

TR0.490.93

0.271.053.220.160.402.380.01

24.52

DEC

TR

0.86 TR 0.10 0.89

0.35 0.80 0.18 TR

3.18

27

Table Al. -Continued.

1954

12345678910111213141516171819202122232425262728293031 Total

12345678910111213141516171819202122232425262728293031 Total

JAN

TR

1.16

TR

0.80 TR

TR

0.154.854.37

0.60

1.861.83

0.421.832.810.220.44

21.34

FEB

DAILY PRECIPITATION AT StiASTA DAM


2.832.002.250.240.402.250.16

0.562.383.40

0.140.27

0.300.650.780.05

TR

0.771.013.840.35

0.05TR

0.08

0.281.38

0.390.08

1.400.09

NOV DEC

0.351.320.200.260.823.220.030.011.580.23

0.07

0.46 0.21

TR

0.714.490.130.031.16

0.322.900.27

0.94 TR

0.26 TR

0.06

1955 JAN

0.16

0.03

0.320.66

0.100.78

2.001.380.64

10.13

FEB

0.22

0.641.37

0.58 0.010.250.019.37 8.10

MAR APR

0.00

MAY

0.02

0.07

2.21

JUNE

TR 0.01

0.01

JULY

0.06

1.520.032.020.11

4.14

AUG

0.28

SEPT

1.75

OCT

10.01

NOV

TR 0.02

0.170.01

0.060.22

0.220.036.32

0.071.930.09

2.59

0.320.45

0.95

TR

TR 0.02

0.420.200.311.592.190.99

0.130.98

TR0.160.05

7.04

TR 0.02

0.380.20

0.160.20

0.570.68

0.850.471.001.123.581.83

0.460.80

TR

0.09 0.02 0.06

28

0.15

TR

0.120.051.109.63

DEC

0.21

0.272.72

0.94

TR0.450.402.645.926.361.638.242.470.010.551.020.130.02

0.00 0.36 0.73 11.38 33.98



1956 JAN FEB

12345678910111213141516171819202122232425262728293031 Total

1957

12345678910111213141516171819202122232425262728293031 Total

2.000.30

0.260.660.101.420.38

0.810.68

0.641.663.320.70

0.160.250.740.220.500.81

0.690.591.150.36

18.40

JAN

MAR

TR

0.06

APR

0.01

MAY JUNE JULY

0.17

0.200.250.460.240.100.07

0.551.290.330.100.08

0.210.990.01

0.54

AUG SEPT OCT NOV DEC

0.200.27

0.07 0.13 TR

TR

0.300.24

TR

0.10

TR2.462.300.361.870.02

1.400.03

TR TR 0.03

0.426.143.882.880.760.061.290.300.05

0.34

16.12

FEB

TR 0.28

0.75

TR 0.05

0.031.750.721.303.543.511.941.31

TR

0.60 0.050.14

0.10

0.16

MAR

0.01TR0.020.950.870.760.18

0.36

0.151.100.01

0.471.050.92

0.22 0.05 TR

1.60

APR

0.090.021.45

1.49 0.58 TR 0.71

0.21

3.77

MAY

0.960.30

0.020.600.090.02

0.16 0.49 TR

1.480.350.530.26

1.14

JUNE

0.17

JULY

0.00

AUG

0.19

SEPT

0.07

0.020.04

0.02TRTR0.50TR

3.730.024.87

OCT

0.100.100.15

0.971.670.21

2.320.13

0.47 0.20

NOV DEC

0.21

0.16

0.400.200.131.672.91

0.190.09

8.57 15.18

0.020.020.320.107.31

0.03

4.34 5.29 0.07 0.00 0.00

0.014.431.090.300.31

6.14

0.592.160.040.01

8.45 5.75

TR

0.601.870.691.120.140.603.260.42

0.130.120.12

0.560.34

10.18

29

Table A1. Continued.

1958 JAN

1234567891011121314151617 18*19202122232425262728293031 Total

1959

12345678910111213141516171819202122232425262728293031 Total

FEE



1.06 ._0.01 1.140.141.011.67 0.16 0.02 1.180.901.160.011.142.041.32TR

12.96

JAN

0.521.321.320.850.803.390.820.811.100.022.78..1.041.613.260.060.424.340.690.10 0.742.202.60

30.79

FEE

...... 0.05TR __0.910.290.21 ._ ..0.452.311.390.710.530.68..__0.011.761.810.02

11.15

MAR

2.001.691.350.931.241.440.06 _.. __ 0.020.09 __ 0.07

8.89

APR

0.510.90

0.064.040.47

0.020.310.040.78

0.14

NOV DEC

0.040.31 0.17

0.14

0.230.12

0.68

0.35

0.010.17

0.03

0.16

0.51 0460 0.28

0.50

0.051.17TR2.040.23

0.38 2.30

MAY

0.08

6.10

JUNE

0.91

JUtY

0.17

AUG

0.42

SEPT

0.35

OCT

1.25

NOV

4.02

DEC

0.051.673.630.383.766.791.92 1.260.79 0.564.33 0.04

1.133.423.180.810.660.660.110.920.420.02

0.420.770.150.121.04

0.09

25.86 13.19

0.05

0.03

0.252.250.06

0.37

0.030.021.690.054.72

0.03

0.020.09

0.14

0.48

0.36

3.104.340.07

0.23TR

TR4.960.03

4.99

0.511.570.22

0.28 0.05 0.23 7.87 0.03 0.05 2.78

30


I960 JAN

8910111213141516171819202122232425262728293031 Total

FEB



12 3 4 5678910111213141516171819202122232425262728293031Total

1961

1234567

.-

0.020.780.270.400.620.61 0.220.09 ____ TR0.232.550.27 2.350.710.711.94TR0.64__

12.41

JAN

_ ~_ «

1.92 1.58 0.10 1.46 1.170.051.083.180.780.62.. 0.04 ._..._0.01 -._--_ _-

11.99

FEB

0.090.810.38 0.07

0.21 2.02 1.342.651.770.25 ..__0.380.27 ._ .. ._ .. 0.100.74 1.00._

10.73

MAR

___. 0.220.75

--

0.410.19 ._0.02 ._ 0.01 0.30 0.050.071.780.09

2.92

APR

_..~ ..

0.15 0.01 0.07

__0.11 _-_- _. _- ___-

0.162.881.340.310.17..___ 5.20

MAY

0.040.31 0.050.64

..

____ ____._.._. _... ..__ _. .. _.__

..0.0 0.0

JUNE JULY

0.080.300.030.50 ._

0.43 0.080.10

0.10..

0.430.202.070.260.11

..

0.70

0.07..._

1.171.520.630.20

..

0.75 0.0 0.0 0.53 8.29

AUG SEPT OCT NOV

..

..

.. ....

4.87 1.33 0.33

~0.15 0.112.112.801.060.28 _. _. .. ~..

13.04

DEC

_

0.060.100.05

0.371.500.920.750.110.030.870.520.09

0.55

0.180.660.070.573.223.248.70 6.51

0.820.470.13

1.760.121.37

0.36

TR0.060.220.820.650.76

8.51

0.530.68 0.070.04 0.02

0.650.02

0.02

0.21

0.05 0.33 TR

0.050.190.48

0.04

0.22

0.98

0.05

0.230.03

0.040.733.32

0.030.03

0.060.100.36

0.55

0.170.881.234.412.050.47

0.830.88

TR 0.01

0.590.241.111.360.54

1.00 0.21 0.05 0.38 1.25 11.49 9.48

31

Table AT. Continued.

1962 JAN

12345678910111213141516171819202122232425262728293031 Total

FEB

1963

12345678910111213141516171819202122232425262728293031 Total

DAILY PRECIPITATION AfT SHASTA DAM

MAR APR MAY JUNE JULY AUG SEPT

TR

OCT NOV DEC

0.18

0.071.362.660.08

4.35

JAN

0.181.813.021.971.550.440.734.841.812.061.090.160.430.37

0.06

0.25

20.77

FEB

2.370.290.940.010.21TR0.080.120.060.600.080.011.62

0.010.51

0.06

1.580.150.070.181.182.440.65

0.570.01

1.04 0.01 1.23 TR

0.060.040.03

0.07

0.03

0.06

0.480.65

0.11

0.150.093.480.573.542.680.30

0.080.951.40

0.01

0.30.150.020.170.06 0.35

0.301.841.270.590.04

0.09

9.11

MAR

0.101.262.644.00 6.97

0.13

0.070.121.600.18

1.450.36

1.272.460.590.920.059.20

0.73

0.82

APR

0.17

0.31

0.412.950.880.031.481.160.230.390.901.761.16

1.400.01

0.34

0.040.360.01

13.99

0.060.05

0.070.391.13

0.41 0.07 0.0 1.19 1.52 10.92

MAY JUNE JtJLY AUG SEPT OCT

0.03

0.310.580.240.050.430.08

0.020.23

0.07

0.13

0.03 H

1.97 0.23 0.0

0.050.08

0.01 -- 0.38

2.270.10

0.18

0.26

0.01

0.57

0.07

0.03

0.01 0.18 3.82

0.02

2.320.84

3.62

NOV

0.030.272.170.632.080.300.921.58

2.521.48

1.001.85

0.950.65

6.82

DEC

0.39

16.4

0.62

0.01

0.160.180.27

1.63

32


1964 JAN FEE



12345678910111213141516171819202122232425262728293031Total

1965

12345678910111213141516171819202122232425262728293031Total

__,- .. 0.13_. 0.15 0.250.830.843.921.510.420.080.270.160.03 0.070.12 8.78

JAN

_0.282.320.041.501.550.03 0.06~0.63 ~ 0.010.01 0.342.79 ~ 9.56

0.07 .. ____ ..._ 0.06 ._ ___. _. 0.04

0.17

FEE

____ 0.60 .... ____ __ _.0.69._

1.29

0.020.40 ...__.0.03 ._1.460.09 __._ _....._.0.260.470.26 ._.. ._2.99

MAR

__.. 0.04 ..~ 0.080.01_. .. __ 0.420.370.06 0.08 1.06

0.34 ._ ._.. .__..._.. ..~~__...___._ .. ..._..

0.34

APR

0.120.650.05...0.110.620.020.801.911.070.04..0.020.520.631.78 0.821.671.051.32 .._. _.

13.20

_._0.300.28_. __.. .._......_.._0.16__._.._.__ .._. ..0.26 .__.1.00

MAY

...._. ._.._...__._.... ._ ..0.110.20 ____._ _.__ 0.31

_., 0.02 0.140.140.240.340.53_ .._. ..

0.10_-

1.41 0.10

JUNE JULY

.. _... __ .... 0.13 0.01 _-

..

0.14 0.0

0.27 .. _._ .. _ __ .._._ _ .. _._. _ 0.0 0.27

AUG SEPT

..___ __.. _._0.030.50____._._0.070.400.050.340.02___.0.01 _.__.- -.

1.42 0.0

._ _.-. ._ .._.____.- .- -_.... 0.151.262.450.55 4.41

OCT

..

.._.._..__ .._._. _._._.0.10 -__--_ .. _.

_.

0.10

0.562.070.05 0.512.682.810.061.88...._... ......0.41 0.110.890.01 2.050.58

14.67

NOV

..

._

..0.130.01 0.021.15.. 0.011.212.006.503.660.150.722.930.620.05 __0.510.680.850.180.70 ..

22.08

1.240.040.04 ....0.020.050.190.85.. ._0.07 _.2.802.583.58

11.643.581.010.340.650.800.110.320.370.21

30.49

DEC

._.. .. ~ ._0.010.27_. ._ ......._,_.. 0.200.33 0.050.370.830.090.232.38

33

Table Al.-Continued.

1966 JAN

345678910111213141516171819202122232425262728293031

FEE



12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 3031Total

1967

12

1.00 4.16 2.64 1.03

0.27

0.13 0.09

._13.69

JAN

_

0.56 0.03

2.40 2.15 0.19

0.41 0.66

0.31 0.32 0.08 0.90

9.01

FEE

0.030.11

0.04

0.86 0.15 0.06 0.43 0.41 1.10

,0.47

0.21

0.08

_3.81

MAR

1.06 0.23 0.58

1.87

APR

0.62

--

._0.0

MAY

_

0.07

0.7

JUNE

0.501.37

4

|4 4

4

4 _^

ojoJULY

0.06 0.120.020.20

AUG

..~

0.25

0.10 0.02

0.37

SEPT

_

--

0.0

OCT

_

0.88 0.15

0.10 1.17 0.79 1.50 2.95 1.96

0.37 2.85 1.33 1.41

0.34 0.64

16.44

NOV

_-

1.07 1.40 1.72 0.72 5.27 0.02

0.20 0.71 0.01 0.06 0.17 0.60

0.05 0.05

0.02

~12.07

DEC

0.290.10

TR

0.02

1.623.320.15

1.420.281.190.441.452.160.202.71

0.501.601.090.170.300.021.721.650.03

0.600.23

0.11

0.322.240.68

0.390.260.560.02

1.06

0.090.24

2.510.571.21

1.24

1.000.060.24

0.11

0.90

Total 14.94 1.06

0.150.030.851.510.470.190.030.230.700.310.02

0.610.03

0.160.312.76

11.25 10.22

0.05

0.090.20

1.250.03

0.150.63

0.08

1.30 2.22

0.02

0.02 0.0 0.05 1.23

0.200.911.23

4.06 6.55

34


1968 JAN

12345678910111213141516171819202122232425262728293031 Total

1969

12345678910111213141516171819202122232425262728293031 Total

FEB

0.100.660.62



0.060.100.33

0.260.24

OCT NOV

1.020.410.510.010.01

DEC

0.56

0.41 2.51

0.270.781.160.170.05 ______ .__ -

0.063.051.750.15

10.36

JAN

-

_.

0.15

_.0.310.250.122.730.100.571.451.141.371.440.44_.-"I

._

11.48

FEB

0.34

_

0.14 0.16

1.371.210.241.320.120.06 ___._.0.120.080.20--

" ".__._.5.93 0.43

MAR APR

1.93

0.43 0.96

--

0.800.78_.__...-.0.800.030.38_._.0.03-

" " ". _2.82 0.50 0.0

MAY JUNE JULY

..

_

0.19

._0.02 0.11_._.0.60__0.850.280.58 _... 0.06

" '.'. .._2.64 0.11

AUG SEPT

--

_

0.02 2.930.18 0.24.... .. ._--I"

0.370.44..4.18

OCT

--

_

0.61 1.24__ 0.370.09.. 0.390.10--"

._0.60

5.36

NOV

--

_

0.30 0.15 2.44 1.35 0.05 1.781.200.36 _..... 2.192.631.390.11

1.610.28

16.40

DEC

-

_

0.783.287.420.17

1.133.205.050.25

0.221.470.050.01

1.15

0.801.600.030.103.430.641.262.13

0.492.110.18

0.350.02

0.060.801.210.190.310.102.41

1.060.84

0.71

0.370.44

0.04

0.04

0.17

1.210.370.05

0.160.250.09

0.07

0.100.081.110.32

0.430.700.160.81

0.17 0.06

0.690.031.002.283.901.950.750.440.020.290.462.002.123.850.011.380.590.55

24.18 18.56 3.92 4.70

0.04

0.04 0.67 0.0 0.0 0.06 1.68 2.10 22.31

35


1970 JAN FEB

DAILY PRECIPITATION A} SHASTA DAM


12345678910111213141516171819202122232425262728293031Total

1971

12345678910111213141516171819202122232425262728293031Total

.. __.____0.362.073.580.490.381.335.560.362.150.740.180.400.812.042.942.954.800.030.342.62 __._._

34.13

JAN

0.080.10.___

________..._____ __0.170.920.46__._2.05 ____......._._._0.19

3.79

FEB

___.._._._

1.80.__0.300.81_0.110.460.050.160.090.06

____._______

_ ____0.02

_..__

0.02_._

.. _......_

0.08 -- 4-0.11 1.49 4-

0.06 4-..__

..0.05

0.04 - - 40.20_.__._..__.._...__.__.__ ._.__.4.04

MAR

___._.0.02

0.16._ ._.____ __

0.20

APR

___.... 0.01

.. 0.02

0.540.330.090.430.200.893.351.910.25

__0.02 ..0.20

0.782.980.790.110.33_.0.07._

1.

28

0.46._._..

-i._

__. ~.. __ 0.26 2.01 0

._ .. ...._... ._._...__. ._ __

0 0.0 0.02

MAY JUNE JULY AUG SEPT

0.11 0.410.19 0.350.04 ..0.450.19

..__....

:: :: _.

0.20._0.930.041.520.440.67_. 3.80

OCT

_ « --

0.03 O.p3____0.23 __

0.02..

..._ 0.140.04

_______._______8.17

.... ___

0.22

1.100.441.142.870.03___. ..

10.66

_. 0.02 __ _

1.51

__0.25 0.240.14 0.050.900.04____2.84 0.80 0

._..0.03

.0.030.68

0.15.03 0.15 0.74

~ 0.270.04 0.350.13 0.79

._ ..1.362.880.300.910.693.150.210.600.28 0.540.350.781.960.181.326.531.761.92

25.72

NOV

_ 0.020.310.350.772.71 0.110.060.181.001.680.44«

7.63

0.980.591.103.430.180.210.601.280.50- ~0.120.131.550.030.650.01..2.27 0.030.252.410.020.06

16.40

DEC

_0.410.710.24 0.22~ 0.100.13 1.70 0.010.03~ « 1.890.040.270.540.400.31~0.02 ~7.02

36

Table Al . Continued.

1972 JAN

12345678910111213141516171819202122232425262728293031 Total

1973

12345678910111213141516171819202122232425262728293031 Total

FEB

0.040.23



0.750.99

0.33

0.521.550.11

0.47 0.010.39 0.830.01 1.31

0.26

0.10

1.510.05

0.05

0.190.671.301.041.60

0.680.101.28

6.86

JAN

1.300.781.691.161.04

0.107.740.152.600.09

0.36

0.390.09

0.240.900.33

18.98

0.17

0.200.380.26

0.740.130.810.69

3.65

FEB

0.762.400.230.910.240.151.412.120.230.110.791.03

0.661.520.18 0.350.39 0.05

0.05

0.150.511.750.02

0.590.691.020.300.050.270.800.500.30

0.08

0.401.36

0.070.450.040.702.21

1.053.680.432.150.050.350.33

0.05

0.341.03

0.260.59

0.660.040.08

0.050.03

0.171.040.281.150.170.141.000.150.31

0.46

5.36 5.32 2.58 1.56 0.0 0.08 1.42


1.60 -- -- 0.21

0.030.48

1.390.390.32

0.030.28

0.06

1.770.730.57

0.02

0.16

0.560.01

0.80

0.701.000.180.960.66

13.88

0.340.52

0.120.648.41

4.52

DCT

--

._2.50 0.10 "

0.150.081.250.810.16 .._.

13.36

NOV

_~

1.321.750.731.841.223.403.071.420.551.071.171.880.383.71

0.120.190.360.110.24 0.050.070.052.92

6.58

DEC

2.890.05

0.03 0.030.13 ~0.660.140.320.04 0.410.02

0.072.080.84 0.170.080.030.981.001.73-

0.02 0.86 0.21 0.16 0.0 1.37 5.05 27.62 11.70

37


1974 JAN

12345678910111213141516171819202122232425262728293031 Total

12345678910111213141516171819202122232425262728293031 Total

FEB

1.30

0.100.010.030.06

0.681.000.472.834.773.600.730.93


MAR APR MAY JUNE JlfLY AUG SEPT

1.93 2.840.44 0.610.58

OCT NOV

0.04

DEC

0.483.082.36

0.7515.96

1975 JAN

0.11

1.450.021.55

0.35

0.30

0.161.51

0.10

0.84

4.56

FEB

2.161.230.080.640.420.331.220.591.850.860.131.724.170.04

0.380.74

1.300.12

1.980.900.08

0.06

0.440.15

0.25

0.882,63052

1.11

0.460.10

0.150.32

0.170.700.612.113.084.970.05

19.02

MAR

0.060.840.05

0.101.051.091.300.91

0.900.03

0.600.600.291.270.213.904.470.020.212.270.170.602.22

0.960.440.33

0.36

0.320.75

0.24

5.83 0.46 0.57

APR MAY JUNE JUl

4.03

LY

0.25 0.0

AUG SEPT

2.510.18

0.473.16

OCT

2.82

NOV

0.190.800.06

0.340.01 0.12

3.410.530.01

0.06

0.213.34 16.61 23.16

0.70

0.16

0.450.610.700.14

3.95 0.0

0.390.18

0.360.02

0.020.320.02

0.41

0.450.74

0.19

0.360.060.08

0.02

0.020.05

1.151.58

9.24

DEC

0.08

2.410.81

0.43

031

0.45

0.31 0.5

0.08

0.47 0.0

0.122.27

1.340.037.83 2.15 4.18

38


1977

12345678910111213141516171819202122232425262728293031 Total

0.06

0.65

0.03

1976 JAN

12345678910111213141516171819202122232425262728293031 Total

FEB



0.041.370.630.96

0.74

JAN

1.431.440.21

0.010.321.141.310.540.090.27

0.443.480.700.27

0.58

9.15

FEB

0.010.450.252.851.010.020.830.160.02

0.08

0.36

0.02 TR

0.05

OCT

0.050.02

NOV DEC

TR

0.05

0.13

0.703.400.020.010.750.10

0.040.02

0.12

9.64

0.020.06

1.250.22

3.14

MAR

5.72

APR

0.070.81

0.23

0.840.710.03

0.020.31

0.02

0.010.540.930.13

0.090.410.50

0.180.10

0.030.03

MAY

0.480.300.010.10

0.22

0.201.130.750.14

TR

JUNE

0.0

JULY

0.01

5.47

AUG

0.95

1.71

SEPT

0.07

OCT

0.380.02

1.56 0.40

NOV DEC

1.05

0.150.01

3.31 2.48 2.95

0.040.84

0.12

1.26

0.12

0.870.08

0.920.22

0.03

0.611.390.780.663.24

0.070.20

5.34 0.03 0.01 0.27

0.661.540.01

8.89

0.04

0.020.120.321.020.37

1.89

0.08

0.250.710.423.741.770.122.05

1.67 0.021.11 0.890.38 2.040.25 0.06

0.140.01

0.330.550.130.190.05

4.77 13.38

39


1978 JAN FEE

DAILY PRECIPITATION AT 5HASTA DAM


12 345678910111213141516171819202122232425262728293031Total

1979

12345678910111213141516171819202122232425262728293031Total

0.57 0.550.262.900.88 0.625.140.340.132.811.232.004.434.582.000.323.310.18 0.40 _ ~_..__0.02

32.67

JAN

_....0.05__._ 1.031.700.586.730.15 1.502.960.08 ..____ ._..__

14.78

0.04 0.86 0.13..0.981.482.761.021.16__ 0.420.920.030.120.020.05 -0.04 0.01_-

10.04

FEE

. _ _. __ ._0.10-_0.350.013.392.04._1.36 1.120.360.572.300.700.400.02_0.70__0.40

13.84

0.46 3.231.442.920.95 3.09-1.83 0.030.11._._.. 0.021.070.400.02 _.

15.59

MAR

0.35 0.150.11 _. _.0.890.880.800.220.11 0.90__.._ 2.080.760.04_._7.29

3.79 0.19 0.340.690.011.460.11 _. _.__ 0.811.230.01.- 0.280.08 1.240.57 _.0.02

10.63

APR

_ __ ._0.15 ..~ __..._0.660.28._ 0.040.701.28_0.290.75 ._

4.15

0.12 -- O.O^

_.0.051.530.10

_...0.05__.__.._...__..

0.133.14

..

0.030.02

..

._.. 0.03 -- - 0.01_._.

0.25......0.20 0.25 0.0<

MAY JUNE JUL

..

[ 0.01 5.00

r AUG SEPT

0.630.03 - - -- 0.05____0.500.650.400.03.-

0.2....

.. ..

..

._

.. ..._

0.17 ._._._

0.210.15

..0.07

._ ._2.24 0.0 0.2

0.530.02 0.79 0.42

: 0.0

OCT

_ 0.02 0.302.530.11 1.460.050.30 0.60TR2.62-- 7.99

--

0.17 0.181.070.960.57~~

2.95

NOV

_ 1.170.750.840.350.02 ~ 0.701.03 ~0.891.200.250.56

7.76

0.18

0.03 0.05 « 0.12 « -- ~ ~~0.38

DEC

_ 0.19 ~-- ~- 0.150.290.97 0.402.501.020.44 0.040.950.767.71

40

Table Al.-Continued.

1980

12345678910111213141516171819202122232425262728293031 Total

1981

1234567

JAN

0.05

0.080.02

0.060.030.162.640.800.630.630.470.76

FEE

0.02

0.030.06

0.08



0.030.100.44 0.230.52 3.762.58 0.060.36

0.03

0.02

6.35

JAN

TR 0.23

TR

10111213141516171819202122232425262728293031Total

TR._ 0.741.470.510.010.600.470.713.000.78._0.431.293.950.640.22..

15.05

0.302.486.983.814.180.380.971.500.21

0.030.040.211.190.04

22.51

FEE

TR

0.610.200.383.35

0.39

0.09

0.631.350.280.57

0.701.10

0.07

0.061.16

0.01

0.28

0.160.66

0.030.550.130.16

NOV DEC

1.748.483.96

0.25

0.330.33

0.24 0.13TR

0.030.610.06

0.04

TR0.300.810.09

0.020.080.05

6.03

MAR

1.600.36

0.040.01

0.66

0.131.30

0.600.581.661.350.020.021.070.890.05

10.34

0.04

0.03

0.284.82 1.84 1.69 0.0 0.0 1.44 0.83

APR MAY JUNE JULY AUG SEPT OCT

0.06

0.02

0.02

0.32TR0.04

0.35

0.96

NOV

0.150.72

0.23

0.18

0.0115.47

DEC

0.09 0.660.02

0.720.03

0.04

1.211.09 2.590.68 0.090.14

TR0.03 0.04 1.09 0.10 0.03

0.38

0.200.62 0.95

3.640.51

0.060.412.360.692.402.364.642.320.01

0.570.482.070.99

0.411.470.15

3.12 4.07 0.0 0.11 0.0 1.20 6.55 21.39

0.161.01

0.75

0.250.801.670.70

0.473.402.860.56

0.050.45

1.200.580.17

15.08

41


1982 JAN FEE


MAR APR MAY JUNE JULJY AUG SEPT

12345678910111213141516171819202122232425262728293031Total

1983

12345678910111213141516171819202122232425262728293031Total

2.000.561.760.26 ._ .. .. ._0.060.281.230.58 0.100.02 0.580.051.32 _.8.80

JAN

..__ .. ..0.01_. .. __ 0.270.121.281.590.010.010.490.352.690.583.634.610.550.530.570.06

17.35

_. ._ .._.....0.04 0.642.181.322.900.71 0.52 TR1.34

9.65

FEB

__. 0.472.001.901.731.550.930.211.851.46 0.090.45._0.970.34 ..0.09~0.271.041.271.692.39

20.70

1.881.330.020.09 0.420.350.280.20 0.400.090.470.300.020.08 ~« 0.670.380.251.202.17

10.60

MAR

4.591.642.950.060.841.121.710.100.230.450.731.025.160.50 1.050.58 1.181.200.782.010.71 2.330.070.821.840.88

34.55

1.151.852.85 0.100.150.02 0.050.950.300.034.07

11.52

APR

_0.21 0.07 ~ 0.670.58~0.030.641.201.120.110.151.000.900.21

6.89

0.040.07

0.03

OCT NOV DEC

0.160.320.05

0.24

0.20

0.0

0.18TR2.02

2.31(m) 0.59

MAY JUNE JULY

0.200.01

0.791.41

0.01

0.080.030.480.14

0.16

0.33

0.33 0.92

AUG SEPT

0.34

0.020.071.130.620.100.081.78

0.061.86

5.96

OCT

0.03

0.742.050.280.150.020.030.27

0.330.652.611.01

8.67

1.912.203.70

0.183.151.820.83

14.52

NOV DEC

0.03

0.080.03

0.24

0.12

0.02 0.06

1.060.46 2.00

2.44 0.24 0.25

42

1.58

0.13

2.47

0.080.60

1.041.483.26

1.120.480.030.36

0.150.70

0.522.702.880.840.820.210.010.911.900.020.480.82

0.741.40

17.09

0.080.051.850.30

0.982.480.202.192.273.591.200.800.180.020.020.33

0.281.801.471.391.08

0.041.040.02

23.66


1984 JAN

12345678910111213141516171819202122232425262728293031 Total

1985

12345678910111213141516171819202122232425262728293031 Tot

FEB



0.02

0.500.05 0.400.05

0.650.940.43

0.04 0.740.35 0.55

0.07

0.01

0.02

0.370.020.650.05

0.180.810.200.01

OCT

0.09

0.01

0.680.33

0.03

TR 0.02

1.612.171.300.020.82

0.090.020.30

0.15

0.550.82 TR

0.19TR

0.58

JAN

4.68

FEB

0.22

0.57 0.500.16 2.390.270.15

0.07

0.055.99

MAR

0.14

0.01

0.500.850.11

0.05

0.03

2.59

APR

1.22

MAY

1.02

JUNE

0.551.20

0.03

JULY

0.09

0.010.480.58

AUG

0.19

SEPT

0.840.010.01

0.030.97

0.090.04

0.01

0.65

2.74

OCT

NOV

0.641.15

0.780.201.580.301.421.403.382.660.05

1.040.150.99

0.520.26

1.40

0.332.12

TR

20.37

NOV

DEC

0.09

0.83

0.16

0.190.440.49

0.320.060.270.03

0.20

0.200.05

0.024.181.88

0.01

0.01

0.01

0.01

0.110.023.02

DEC

3.241.97

0.600.190.40

0.27

0.400.27

0.39

0.06

1.21 3.18

0.41

0.131.820.100.02

4.34

1.190.702.140.02

0.67 0.25 2.14

0.091.001.09 0.25 6.38 4.05 M

T0.15 0.026.57

43


1986 JAN FEB


MAR APR MAY JUNE JULf AUG SEPT OCT

12345678910111213141516171819202122232425262728293031Total

1987

0.160.140.090.430.820.05 __ _.

0.953.942.230.320.030.31 ..

0.60

0.473.341.0514.93

JAN

1.361.220.630.52 .._.._._._._

1.011.352.642.201.573.714.771.880.150.170.91

24.09

FEB

-_._

2.033.430.092.850.240.610.710.241.261.41

0.02

12.89

MAR

~

0.320.33

0.390.72 ~ ~

1.76

APR

0.041.850.100.050.20T

2.71 ~~

4.95

MAY

..

.. ..._._.. .. ..._-. _. _. ..._ _.....

0.0 0.0

JUNE JULY

NOV DEC

0.290.24

0.040.122.100.050.880.02

0.580.180.210.42

0.02

0.17

0.02

0.040.17

0.02

0.210.330.96

0.480.22

0.10

0.14 0.10

12345678910111213141516171819202122232425262728293031Total

0.741.221.950.230.090.090.18 _~ 0.03~ 0.411.410.730.38 0.710.010.960.039.17

086043

0.390.600.214.980.101.37

0.020.03

8.99

1.72 0.010.112.891.39

0.02

0.421.771.720.531.00

0.680.290.730.05

0.21

13.32 0.22

0.080.13

M 4.60 1.43 0.35

AUG SEPT OCT NOV

0.29 TR

TR 0.06

0.50

0.600.10

0.150.12

1.20

1.90

0.08

0.08 0.21 0.0 0.0

0.250.03

0.160.03

0.47 3.83

0.393.55

DEC

1.522.882.200.102.152.280.601.031.681.37

0.140.520.15

0.020.05

0.170.590.480.14

18.07

44


1988

13141516171819202122232425262728293031 Total

JAN FEB



12 345678910111213141516171819202122232425262728293031Total

1989

123456789101112

0.881.920.50 _.0.701.100.401.58._0.090.170.411.900.10 ~ _.

0.100.580.70

11.12 0.10

JAN FEB

_ .. 0.530.020.030.060.240.76 0.76

0.060.01

0.29

_0.05 __ .. .. ._ _._ .._ _ _. _ _.0.34

MAR

2.270.17._0.781.480.081.571.260.571.10

_ ___- .. _0.200.11 0.03 1.651.510.050.020.73 _ _...0.170.05

4.52

APR

0.330.10_ .. ._

-

_0.260.261.450.950.73.___0.08____0.150.63_.__________1.40 _5.96

MAY

0.13__ _..._ _ 1.060.04

0.07 0.33 0.02_0.030.160.550.420.010.02___ _________

0.25__

_1.61 0.25

JUNE JULY

0.03_ 0.080.01____ _._ ..

-

______.____._.___.______________0.0

AUG

___ _..___

OCT NOV DEC

0.205.010.02

0.04

0.13

0.080.17

0.45

SEPT

0.70

OCT

1.930.040.460.780.580.080.781.35

2.602.12

0.950.01

0.08

17.16

NOV DEC

0.10

0.340.26

0.100.700.020.060.130.07

2.34 1.30

0.10

0.350.121.240.37

1.091.370.110.130.58

0.1814.92

2.102.16

0.070.330.390.280.220.100.04

0.27

2.13

0.08 0.15

1.31

0.04

0.13 0.03 0.15

0.050.05

0.280.53

5.17

0.371.632.470.810.13

0.65

6.06

0.260.120.97

1.35 0.0

45

Table AT.-Continued.


1990

12345678910111213141516171819202122232425262728293031Total

1991

JAN

_0.20 _. -T-1.533.220.560.08 ..2.512.07 0.060.05 ._ ._ _. 0.270.08

10.63

JAN

FEE

0.690.05__0.69~0.36 __ 1.030.460.05 __ _.

3.33

FEB

MAR

_0.281.480.180.36 0.05..0.450.05._ 0.14 ~ ~ 0.02~ 3.01

MAR

APR

_ 0.06 0.280.02 ~_ 0.17 - 1.380.02

1.93

APR

12345678910111213141516171819202122232425262728293031 Total

MAY JUNE

0.10

0.02

JUUi AUG SEPT OCT NOV DEC

0.06-T- 0.01-T-

0.37

0.951.640.873.59

0.721.832.280.320.110.45

12.76

MAY

0.18

JUNE

0.01

JULY

0.180.02

0.06

0.620.02

0.18

1.08

AUG

0.060.22

0.160.24

0.260.09

0.02

0.010.140.010.37

0.53

SEPT

1.711.99

OCT

0.28

0.65

NOV

0.77

DEC

0.42

0.170.040.020.300.53

0.01

0.17

1.681.354.373.000.20

0.230.100.840.85

0.09

0.341.110.091.870.520.031.021.910.441.950.27

0.22

0.28

1.49 0.17 22.26 0.50(4/11)

46

Table A2. Monthly summary of precipitation data, in inches, Shasta Dam, 1944-91

(--, no data, n, number of years, s, standard deviation)

YEAR194419451946194719481949

1950195119521953195419551956195719581959

1960196119621963196419651966196719681969

1970197119721973197419751976197719781979

1980198119821983198419851986198719881989

19901991

TotalMeann =

JAN6.113.934.981.82

10.241.26

14.0110.1313.4618.1121346.32

18.408.57

12.9625.86

12.418.704.354.008.789.56

13.4214.9410.3624.18

34.138.176.86

18.9615.963.340.743.31

32.6714.78

6.3515.058.80

17.350.581.21

14.939.17

11.122.34

10.631.49

526.1410.9648

s=7.86

FEB14.7410.733.716.942.667.69

4.619.486.520.84

10.132.59

16.1215.1830.7913.19

11.996.51

20.776.970.171.299.011.06

11.4818.56

3.790.223.65

13.884.56

16.629.152.48

10.0413.84

22.517.589.65

20.704.683.18

24.098.990.101.30

3.330.17

428.248.9248

s=7.20

MAR2.828.503.29

13.718.14

19.36

5.152.476.517.949.370.950.167.31

11.154.72

10.738.519.119.202.991.063.81

11.255.933.92

4.0410.665.368.41

19.0223.163.142.96

15.597.29

6.0310.3410.6034.555.994.34

12.8913.320.34

14.92

3.0122.26

416.288.6748

s=6.83

APR3.710.750.961.05

14.220.14

1.561361.624.558.107.041.604.348.894.99

1920.980.82

13.990.34

13.201.87

10.220.434.70

0.201.515.320.025.833.955.721.26

10.634.15

4.823.12

11.526.892.590.671.760.224.522.13

1.930.50

194.614.0548

s=3.87

MAY1.526.561.590.933.193.21

1.623.682.343.940.000.093.775.292.300.28

5.203.320.411.971.000.310.001.302.820.04

0.262.842.580.860.460.000.035.340.202.24

1.844.070.002.441.220.254.951.905.961.31

12.76

108.1923047

s=2.39

JUN4.800.690.005.082.550.09

0.980.003.291.852.210.021.140.076.100.05

0.001.000.070.231.410.140.072.220.500.67

2.010.801.560.210.570.310.000.030.250.00

1.690.001310.241.022.140.000.081.610.13

0.18

50.371.0747

s=1.42

JULY0.000.001.070.250.370.00

0.000.000.100.000.010.060.170.000.910.00

0.000.210.000.000.100.000.000.020.000.00

0.000.030.000.164.030.570.000.010.040.02

0.000.110.660.250.031.090.000.210.250.03

0.01

10.770.2347

s=0.63

AUG0.440.100.000.350.340.00

0.000.030.000.654.140.000.000.000.170.23

0.000.051.190.010.001.420.200.002.640.00

0.000.150.080.000.250.475.470.270.010.79

0.000.000.331.580.580.250.000.000.000.15

1.08

23.420.5047

s=1.06

SEPT0.000.000.060.111.860.15

0.530.030.200.270.280.360.196.140.427.87

0.000.381.520.180.270.000.370.050.110.06

O.t)20.741.421.370.000.001.718.895.000.42

1.441.200.922.470.196.384.600.000.005.17

0.53...

63.881.3647

s=2.24

OCT4.58

11.450.94

11.781.440.02

17.384.510.422.221.750.734.878.450.350.03

0.531.25

10.923.824.410.100.001.234.181.68

3.800.794.525.053.167.830.071.890.007.99

0.836.555.963.262.744.051.430.470.706.06

1.99

168.183.5847

s=4.06

NOV9.978.628.531.134.062.66

4.9812.194.549.42

10.0111.380.475.751.250.05

8.2911.493.62

16.4314.6722.0816.444.065.362.10

25.727.63

13.3627.622.822.151.564.772.957.76

0.9621.398.67

17.0920.374.790.353.83

17.161.35

0.65

392.508.3547

s=7.21

DEC8.89

21.145.122.435.142.06

9.5719.7424.523.189.63

33.980.20

10.184.022.78

13.049.486.821.63

30.492.38

12.076.55

16.4022.31

16.407.026.58

11.709.244.180.40

13.380.387.71

15.4715.0814.5223.663.026.573.55

18.076.390.00

0.77

467.849.9547

s=8.22

Annual57.5872.4730.2545.5854.2136.64

60.3964.6263.5252.9776.9763.5247.0971.28793160.05

65.1151.8859.6058.4364.6351.5457.2652.9060.2178.22

90.3740.5651.2988.2465.9062.5827.9944.5977.7666.99

61.9484.4973.94

130.4843.0134.9268.5556.2648.1534.89

36.87

47

30 -

20 10 011 fin _f

ln19

40

IL

nR19

41

Kenn

ett

Sha

sta

Dam

fin

f] -n

o da

ta--

J _

Jfl f

lfl n

(If

l II L

I II I

Jl

fllU

ui

nllln

lllU

L til

l19

42

| 19

43

| 19

44

| 19

45

firm-.

.(I

nnlllL

n IL

JnU

lL

n^niL

dfL

Jl

n19

46

I 19

47

[ 19

48

| 19

49

nru-

Jl

fJIL

n nlf

flnfL

nn

n19

50

[ 19

51

| 19

52

t

Jinnn

_ n

lln19

53

n ,

1954

I

1955

1 nn_

n

II L

nOnfi

tIIU

. ji

1956

|

1957

|

1958

L n r

1959

CO O

30

20

10

h

Q

30

g

20

g10

S

oQ

.

IL

lihiin

. J|n

IL

Jlnd

ndlll

L n

Jl

n

Jl

l19

60

I 19

61

| 19

62

| 19

63

| 19

64

ilJL

ffll

JL

.n

dflln

.n.

nnn

1965

|

1966

|

1967

|

1968

fill

nn

1969

h-

30-°-20-

^-Z

KT 10 0

- nn

n n

l(lL_

Jltk

iu,

Jll

1970

|

1971

|

1972

L^

llnfl__n

nnlln

ln

_^

flnn_

llnn

fin

n nn

n^fl

lull

1973

|

1974

|

1975

|

1976

|

1977

Ifl

Hn

1978

IL _I

IF19

79

30 20 10 0

- - Inn

J

nL

j

nflH

i

n

_JI

I In

_nnn

1980

|

1981

|

1982

|

1983

rnfl

n^^

_

nrun

n__n

,, fln

nflll

ILn

n« n

flflll

n n

nnn

.fln

JL

nfl-

1984

|

1985

|

1986

|

1987

|

1988

|

1989

Figu

re A

l. Ti

me-

serie

s pl

ot o

f m

onth

ly p

reci

pita

tion

data

at

Ken

nett,

194

0-42

, and

Sha

sta

Dam

, 19

44-8

9.

APPENDIX B

TABLES OF WATER-QUALITY DATA

REFERENCES for tables Bl, B2, B3, and B4.

1. Shaw, Paul A., 1941, Mine tunnel drainage in the Shasta Reservoir area: Unpublished memorandum, California Division of Fish and Game, 12 p.

2. Mountain Copper Co., Ltd., 1944-1948, Unpublished reports, Mattie Laboratory.

3. Anonymous, 1955, Water samples from Sacramento River and tributaries - 1955: Unpublished report, California Regional Water Quality Control Board, Central Valley Region.

4. Trumbull, L.E., 1959, Unpublished reports to Mountain Copper Company. Includes representative water assays (by the U.S. Geological Survey) for new copper precipitation plant operating at Iron Mountain from October 21, 1958.

5. George, L.A., 1972, Unpublished monitoring data reports from Stauffer Chemical Co. to California Regional Water Quality Control Board, Central Valley Region.

6. Nordstrom, D.K., 1977, Hydrogeochemical and microbiological factors affecting the heavy metal chemistry of an acid mine drainage system: Stanford University, unpublished Ph.D thesis.

7. California Regional Water Quality Control Board, Central Valley Region, 1979, Iron Mountain Mine compliance reports: Unpublished memorandums from K.L. Smarkel to J.C. Pedri.

8. California Regional Water Quality Control Board, Central Valley Region, 1980, Iron Mountain Mine compliance reports: Unpublished memorandums from D.R. Heiman to J.C. Pedp.

9. California Regional Water Quality Control Board, Central Valley Region, 1984, Treatment plant summary sheet: Unpublished notes.

10. CH2M Hill, 1985, Final remedial investigation report, Iron Mountain Mine: U.S. Environmental Protection Agency report 48.9L17.0.

11. California Regional Water Quality Control Board, Central Valley Region, 1986-88, Acid mine drainage control and permit compliance - Iron Mountain Mine: Unpublished memorandums from D.R. Heiman to J.C. Pedri.

12. California Regional Water Quality Control Board, Central Valley Region, 1986, Water quality monitoring report - Iron Mountain Mine, December 1985 through April 1986: Unpublished report.

13. California Regional Water Quality Control Board, Central Valley Region, 1987, Water quality monitoring report - Iron Mountain Mine, December 1986 through April 1987: Unpublished report.

14. California Regional Water Quality Control Board, Central Valley Region, 1988, Water quality monitoring report - Iron Mountain Mine, December 1987 through June 1988: Unpublished report.

15. California Regional Water Quality Control Board, Central Valley Region, 1989, Water quality monitoring report - Iron Mountain Mine, July 1988 through June 1989: Unpublished report, October 1989.

16. Crowe, C.N., 1990, Hydrologic and hydrogeologic factors controlling acid mine drainage at Iron Mountain Mine, Shasta County, California: Chico, California State University, unpublished, M.S. thesis, 133 p.

50

REFERENCES for tables Bl, B2, B3, and B4~Continued.

17. Unpublished data, Stauffer Chemical Co., supplied by I.C.I. Americas on September 3, 1990, and used in compiling Tables 5, 7 and 8 in Roy F. Weston's 1989 report: Geohydrology and acid mine drainage of underground mine workings, Iron Mountain, California.

18. California Regional Water Quality Control Board, Central Valley Region, 1990, Water quality monitoring report - Iron Mountain Mine, July 1989 through June 1990: Unpublished report, August 1990.

19. California Regional Water Quality Control Board, Central Valley Region, 1991, Water quality monitoring report - Iron Mountain Mine, July 1990 through June 1991: Unpublished report, August 1991.

20. Unpublished data, D.K. Nordstrom and C.N. Alpers, U.S. Geological Survey.

51

Table Bl. Water-quality and discharge data from the Richmond Mine, 1970-91

[gal/min, gallon per minute; mg/L, milligram per liter; --, no data]

Datp Discharge Date (gal/min)

2-05-703-09-704-07-705-18-706-10-709-08-70

1-22-713-02-714-28-714-28-71

4-28-71

6-22-717-20-719-28-713-11-71

12-01-71

1-20-721-20-72

3-07-72

6-01-72

10-10-72

2-22-73

6-12-73

9-18-73

12-18-73

4-03-76

2-16-793-31-79

8-05-808-25-80

12-01-8312-30-83

80250

503

10

2252025

3

15

21.51

.5

.5

035

50

0

2

120

25

2

110

~

2.3

361240

pH

2.141.451.301.271.582.33

1.05.92.85.60

.83

2.132.352.392.52.0

1.01.0

1.0

.90

2.0

.73

.83

1.8

1.1

.80

.501.0

Copper Cadmium Zinc (mg/L) (mg/L) (mg/L)

2371632131777027

160232217362

237

13926.918.12025

337341

312

242

20

400

280

19.1

320

218

494345

243233

231118

1,74048.2

2,3301,920

375126

9602,3209,070

10,100

9,980

1,73010776.71592

1,5001,730

1,470

2,090

70

1,910

2,310

72

1,800

10.8 1,290

20 2,42012.2 1,570

17.5 2,47017.6 2,470

6 8513.5 695

Iron Sulfate (Rgf^n^ Remarks (mg/L) (mg/L) v '

11,600 -- (17)7,580 - (17)

35,800 - (17) 20,000 mg/L, Fe(II)4,770 -- (17)3,170 -- (17)

14.3

7,07015,20014,80024,300

-- (17)

- (17) 5,450 mg/L, Fe(II)-- (17)-- (17)

(17) Middle fork in adit, beyond Scottfault

16,100 - (17) North fork in adit, beyond Scottfault

9,500 - (17) Inside Richmond Tunnel1,330 ~ (17) Inside Richmond Tunnel1,030 - (17) Inside Richmond Tunnel

61 -- (17) Inside Richmond Tunnel897 - (17) Inside Richmond Tunnel

8,040 -- (17) No flow (ponded water)9,110 -- (17) Adit - East; North branch near

substation8,000 - (17) Row measured at bottom of

Richmond pipeline9,900 - (17) No flow (ponded water). Water 0.2

foot below invert elevation of

970

23,000

15,600

Richmond pipeline(17) Water just started to flow into

pipeline 10-10 or 10-11

(17) Scum on water surface requiresdaily cleaning of screen at mouthof pipeline

(17) New dam built 200 feet farther intoadit. Flow into pipeline 25gal/min

(17) Row started 5 to 7 days prior tosampling; water level coming upwith onset of cooler weather.

--

9,200 3

Water color is light orange(17)

5,000 (6) Complete analysis; sample 76WA39

- (7)-- (7)

19,300 -- (8) 2,340 mg/L, Al18,300 -- (8)

33,200 (20) Complete analysis7,340 3f,600 (10) Complete analysis

1-04-84 162 1.4 188 1,090 46,600 (10) Complete analysis

52

Table Bl. Water-quality and discharge data from the Richmond Mine, 1970-9 ]-Continued

Date Dischafge Uate (gal/min)

1-10-841-17-841-24-842-01-842-08-842-15-842-22-842-29-843-07-843-14-843-20-843-27-844-03-844-11-844-17-844-24-845-02-845-08-845-16-84

10-23-8410-30-8411-06-8411-13-8411-16-8411-19-8411-26-8411-30-8412-04-8412-11-8412-18-8412-21-8412-26-84

1-02-851-09-851-16-851-23-851-25-852-01-852-08-852-15-852-19-852-26-853-05-853-12-853-18-853-25-854-01-854-10-85

12-02-8512-16-8512-31-85

1-09-861-18-86

11791.146.271.571.571.456.163.756.156.186.777.567.460.055.252.145.842.639.616.616.616.6

12856.984.256.960.654.856.956.953.346.3

42.936.433.333.333.333.327.321.724.421.721.719.121.721.721.727.3121413

1360

pH

0.55.85.80.65.70.75.90.72.60.85.75.80.75.98.80.90

~1.05.86.70.60.70.80

--

.93

.701.72

~.80

.9911.05.92

-.70.60.90

~.95.97.90.70.96.98.85.91

~--

.71

Copper (mg/L)

210228260237219207264183144143169163181155156166158165162148151148540-

551362-

257212166

--168

-~~--~--~-~ ---

140

220

200

Cadmium (mg/L)

7.89.0

11.014.59.7

11.513.09.459.0

10.411.010.59.78.6

11.010.712.012.712.013.414.413.813.0--

13.9

11.510.29.12-9.7

_.- ---~- - --~

11.1----

._11.5

Zinc (mg/L)

1,2001,3001,6201,6501,5901,5601,8201,5001,3201,3501,3901,4601,5101,2701,4301,6001,4901,5901,5401,7401,7801,7401,600

--2,1501,650

1,4401,2401,090

1,230

- ---- ~ ~

1,700

1,640

._1,920

Iron (mg/L)

_.12,20015,10015,00014,70014,20015,70013,70012,30011,80012,70011,50012,60011,80012,30013,20013,40013,90014,20015,80016,20015,10014,800

-16,70013,500

11,80011,30010,300

11,300

- - -

__-

Sulfate (mg/L)

62,40070,30072,00068,00070,00063,90056,00059,80058,80058,40060,40061,20064,20062,10064,40055,20048,60063,40059,80057,60054,80057,00060,900

-54,00062,000

45,30052,40048,000

-

_. _. --

_~

(Reference) Remarks

(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10) Complete analysis(10)(10) Complete analysis(10) Complete analysis(10)(10) Complete analysis(10) Complete analysis(10) Complete analysis(10)(10) Complete analysis

(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(12, 16)(12)(12)

(12)(12)

53

Table Bl. Water-quality and discharge data from the Richmond Mine, '\97Q-9'\-Continued

Datp Discharge Uate (gal/min)

1-31-862-04-862-05-862-15-862-18-862-31-863-07-863-14-863-21-863-28-864-04-864-11-864-18-864-25-8611-25-8612-04-8612-11-8612-18-86

1-08-871-22-871-30-872-03-872-13-872-17-872-18-872-24-873-03-873-10-873-11-873-17-873-24-873-31-874-07-874-14-874-23-874-30-8712-01-8712-09-8712-22-8712-24-8712-31-87

1-07-881-14-881-21-881-28-882-03-882-11-882-19-883-04-883-11-883-18-884-06-884-21-88

6030016734580046410323118714292665032998.18.1

2725457646122906743

1059016489776052464211

333574946

4010384586262483634312423

pH

_ 0.82 ~ --

_ 1 -- 1 --

.1

.0

1.0 ------

1-

1

1

.85

.47

.80

.90

.98

.89

.69

.64

.66

.0

.46

.60

.37

.44

.67

Copper Cadmium (mg/L) (mg/L)

245

320290580440380290310410475484420430170175170179

17526022029026032099

25021022068180185178186196200200179648376-

334

298310269284305302270269273261275165

12.5 8.08.38.29.012.58.410.011.517.213.913.813.612.013.012.012.2

16.012.712.012.09.27.4

10.17.57.46.38.85.06.56.97.48.28.759.0513.48.08.6 10.0

9.48.37.49.710.411.810.912.512.512.113.513.0

Zinc Iron (mg/L) (mg/L)

1,640._

1,2001,1201,1401,3001,7001,1601,3201,7901,8701,9802,0401,9601,5201,7201,6201,800

2,3001,8001,7001,7001,3001,1001,1501,0801,100890

1,000750960

1,0001,1601,2601,3001,3401,8701,150881

_.1,300

9641,140960

1,3401,3001,6201,4601,5801,7001,7801,7201,750

Sulfate (Refej-ence) Remarks (mg/L) v

- (12, 16)- (12)- (12)- (12)- (12)- (12)- (12)- (12)- (12)- (12)- (12)- (12)- (12)- (12)- (13)-- (13)-- (13)- (13)

-- (13)-- (13)- (16)-- (13)-- (13)-- (13)- (11)-- (13)-- (13)-- (13)- (11)-- (13)-- (13)-- (13)-- (13)-- (13)-- (13)-- (13)- (14)- (14)- (14)- (14)- (16)

- (14)- (14)- (14)- (14)- (14)- (14)- (14)- (14)- (16)- (14)- (14)- (14)

54

Table Bl. Water-quality and discharge data from the Richmond Mine, 1970-9 }-Continued

^ . Discharge u Date f ,/ . x pH (gal/mm) F

5-05-886-15-887-06-887-15-888-24-88

11-09-8811-18-8811-30-8812-13-88

1-04-891-11-891-19-891-25-891-30-892-06-892-14-892-22-893-06-893-13-893-20-893-27-894-03-894-10-894-17-894-24-895-01-895-15-896-14-897-14-898-17-899-18-89

10-24-8911-08-8911-15-8911-21-8911-29-8912-06-8912-13-8912-20-8912-28-89

1-03-901-10-901-16-901-24-902-01-902-07-902-14-902-21-903-01-903-07-903-14-903-21-903-28-90

293428261911213837

353540161738454632

200140141143946045403535231917233130292225192319

18183036323131303231323233

0.99.70.70.81.75.62.75.82

.77

.98

.73

.94

.77

.56

.79

.86

.68

.36

.67

.61

.66

.38

.07

.511.2

.33

.89

.91~

.39

.081.52

.50

.30

.31

.02

.67

.65

.73

.65

.58

.70

.21* .771.021.161.161.02.92

1.03.82

1.41

Copper (mg/L)

320240231218247252282307274

238215190189189183194198201345337392465543478445518463400434295269194188179181169126187170161

162155147244201188183169148155148148153

Cadmium Zinc Iron Sulfate /Referenced Remarks (mg/L) (mg/L) (mg/L) (mg/L) (Reference) Remarks

14.112.512.912.615.314.217.015.714.7

13.612.412.111.411.711.611.611.712.511.610.912.414.716.715.815.213.416.015.515.918.519.212.614.514.114.213.913.511.613.913.7

16.114.412.616.314.814.813.713.412.713.012.412.412.7

2,0101,6801,7101,7401,9201,9502,3002,1101,930

1,8501,6801,6101,6001,5801,5101,5901,5601,6701,5501,4301,6601,8902,1501,9801,9001,9402,0902,1102,2202,3302,4301,2901,6501,7301,7201,7701,5401,2401,8701,850

1,8201,8701,9001,1402,6201,8402,0401,7701,6801,7201,6601,6701,690

- (14)- (14)-- (16)

(15) Daily discharge data begins-- (15)-- (15)-- (15)-- (15)-- (15)

-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)-- (15)- (15)-- (15)-- (15)- (18)- (18)- (18)- (18)-- (18)- (18)-- (18)- (18)- (18)-- (18)- (18)- (18)

- (18)-- (18)- (18)- (18)- (18)- (18)- (18)-- (18)-- (18)- (18)- (18)- (18)- (18)

55

Table Bl. Water-quality and discharge data from the Richmond Mine, 1970-9 ]-Continued

~ . Discharge Date / , / . > pH (gal/mm) F

4-04-904-11-904-18-905-09-905-29-905-31-906-14-907-19-908-16-90

26252620

13499633625

1.24.84.78

1.0~1.161.14

--~

Copper (mg/L)

165160160167384419362340346

Cadmium Zinc Iron Sulfate (^^ Remarks (mg/L) (mg/L) (mg/L) (mg/L) v J

13.413.113.214.213.114.413.915.617.6

1,730 -- - (18)1,7401,7601,8701,7701,9001,8302,0202,240

- (18)- (18)- (18)- (18)- (18)- (18)- (19)

(19) Discharge includes combined flow

9-11-90 18.7 .52 290 15.9 2,010 20,300 11^,000

from Richmond adit and Richmond Tunnel; water-quality data for adit only

(20) 18,100 mg/L, Fe(II); complete analysis

9-24-9011-07-9011-19-9012-03-9012-12-9012-27-90

1-08-911-22-911-31-912-06-912-27-913-07-913-14-913-21-913-29-914-03-914-11-914-26-91

181313111110

1010101013202629691257937

298293252256241233

238232213214229212349291237251

--~

17.920.518.4191918

20201818181720

.8

.8

.5

.1

.1

.8

.9

.5

.8

.616.913 .211.6-

2,3102,5102,3102,4702,5502,330

2,5602,5702,4002,4102,3602,2302,7002,2101,6801,480

._--

- (19)- (19)- (19)- (19)- (19)- (19)

- (19)- (19)- (19)- (19)- (19)- (19)- (19)- (19)- (19)- (19)- (19)- (19)

56

Table B2. Water-quality and discharge data from the Lawson portal and the Hornet Mine, 1974-91


Date

11-05-74

2-08-754-04-75

10-03-75

1-18-764-03-76

1-11-791-21-792-16-79

8-05-808-25-80

9-26-8312-01-8312-30-83

1-04-841-10-841-17-841-24-842-01-842-08-842-15-842-22-842-29-843-07-843-14-843-20-843-27-844-03-844-11-844-17-844-24-845-02-845-08-845-16-84

10-23-8410-30-8411-06-8411-13-8411-19-8411-26-8411-30-8412-04-8412-11-8412-18-8412-21-8412-26-84

Discharge (gal/min)

50

70360-

_-

51

__

32222

91.1

7679666846.546.546.246.239.646.246.246.246.247.14038.736.233.533.631.627.427.427.427.439.639.646.346.346.346.342.939.6

pH

0.92

1.01.021.1

1.11.1

_

_

1.81.41.9

2.251.851.81.81.951.81.651.91.751.751.61.811.882.81.81.622.05--1.951.651.551.451.51.65-1.6-1.61.71.5-1.6

Copper (mg/L)

148

182222160

360230

14917999

106100

62.88756.3

6251.356.554.756.447.356.753.157.255.554.659.257.355.452.552.453.853.252.754.354.552.854.85265.364.952.86464.856.2--

56.6

Cadmium (mg/L)

12.3

9.010.216.0

14.09.3

_.--4.9

6.987.06

3.882.02.0

2.01.92.02.62.61.91.83.32.02.42.0--2.72.42.42.62.42.92.42.93.53.163.763.453.33.233.163.212.872.75-2.73

Zinc (mg/L)

1,750

1,0901,2601,460

1,8601,140

670

750

952932

522345299

307284303328328290342358363372380369388374342390386388373376486473521483446455473461381360

~379

Sulfate (mg/L)

43,100

29,50049,80044,600

41,00033,600

~~

__

__-

11,300

10,30011,80013,00012,0006,000

15,8009,580

10,30013,20015,10015,10014,20015,80015,90014,20014,20013,10013,10015,20014,400

--17,50015,30015,80020,60021,300

--~

14,70014,300

--16,200

(Reference) Remarks

(6)

(6)(6)(6)

(6)(6)

(7)(7)(7)

(8)(8)

(16)(16)(10)

(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(10)(11)(11)

Complete analysis;

Complete analysis;Complete analysis;Complete analysis;

Complete analysis;Complete analysis;

Fe 8,200 mg/L, AlFe 7,410 mg/L

Complete analysis

Complete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysisComplete analysis

sample 74WA158

sample 75 WA 11sample 75WA134sample 75WA30

sample TD-7sample 76WA38

1,062 mg/L

57

Table B2. Water-quality and discharge data from the Lawson portal and the Hornet Mine, 1974-91 Continued

Date

1-01-85 1-09-85 1-16-85 1-23-85 1-25-85 2-01-85 2-08-85 2-15-85 2-19-85 2-26-85 3-05-85 3-12-85 3-18-85 3-25-85 4-01-854-10-8512-02-8512-16-8512-31-85

1-09-861-18-861-31-862-05-862-15-862-18-862-21-863-07-863-14-863-21-863-28-864-04-864-11-864-18-864-25-8611-25-8612-04-8612-11-8612-18-86

1-08-871-22-871-30-872-03-872-13-872-17-872-24-873-03-873-10-873-17-873-24-873-31-874-07-87

Discharge Copper (gal/min) prt (mg/L)

39.6 39.633.3 33.3 33.3 33.3 33.3 27.3 27.3 33.3 27.3 27.3 27.3 27.3 27.327.3182019

1721348778

23616866102102837558504319201818

13132013182323233666363629

1.6 1.65 1.65 1.7

1.7 1.6 1.7

1.6 1.6 1.6 1.7 1.7 1.81.8

51._

60

597190781181201101241201051111171241309485.287.086.5

86.082.0

1.87 84.082.087.084.090.0857886.089.283.683

Cadmium (mg/L)

-

~2.8~2.8

__2.67.62.61.91.92.02.42.32.12.02.32.12.42.454.44.44.64.35

4.44.24.14.54.24.34.203.83.52.92.752.72.6

Zinc Sulfate (mg/L) (mg/L)

---

450

..460

. 450 r-430 \-430320295310350330300310295

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

330 l-350380 f-660660640660

640670 4-660 1-690 4-650 \-680680 4.620580500470450450

(Reference) Remarks

(11) (11) (11) (11) (11) (11) (11) (11) (11) (11) (11) (11) (11) (11) (11)(11)(12)(12)(12)

(12)(12)(12)(12)(12)(12)(12)(12)(12)(12)(12)(12)(12)(12)(12)(16)(13)(13)(13)

(13)(13)(16)(13)(13)(13)(13)(13)(13)(13)(13)(13)(13)

58

Table B2. Water-quality and discharge data from the Lawson portal and the Hornet Mine, 1974-91 Continued

Date

12-20-8912-28-89

1-03-901-10-901-16-901-24-902-01-902-07-902-14-902-21-903-01-903-07-903-14-903-21-903-28-904-04-904-11-904-18-905-09-905-31-906-14-907-19-908-16-909-24-9011-07-9011-19-9012-03-9012-12-9012-27-90

1-08-911-22-911-31-912-06-912-27-913-07-913-14-913-21-913-29-914-03-91

Discharge (gal/min) p

1818

172023272321202021232324242421191973442624231717.717.516.617.6

17.616.916.316.316.7162023.53947

Copper (mg/L)

117117

12011711412011611211098.496.710510196.895.391.590.991.591.514112110210094.797.610398.693.597

104123108103106106110120114126

Cadmium (mg/L)

_~~~ ~ ~~«~ ~- 3.964.394.865.075.375.124.974.76

5.185.865.024.684.964.94.85.34.64.5

Zinc (mg/L)

766832

836757724776710822818678695733720706691703719723728605606589627710716768731737697

751853736682730729730780680661

Sulfate , , (Reference) Remarks (mg/L,;

(18)(18)

(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(19)(19)(19)(19)(19)(19)(19)(19)

(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)

60

Table B2. Water-quality and discharge data from the Lawson portal and the Hornet Mine, 1974-91- Continued

Date

4-14-874-23-874-30-8712-01-8712-09-8712-22-87

1-14-881-21-881-28-882-03-882-11-882-19-883-04-883-18-884-06-884-21-885-05-886-15-887-15-888-24-8811-09-8811-18-8811-30-8812-13-88

1-11-891-19-891-25-891-30-892-06-892-14-892-22-893-06-893-13-893-20-893-27-894-03-894-10-894-17-894-24-895-01-895-15-896-14-897-14-898-17-899-18-8910-24-8911-08-8911-15-8911-21-8912-06-8912-13-89

Discharge (gal/min) p

2923291837.535

47554537.53532272524272330272319172725

2423232827252525111676975524136312925191918182120212020

__

1.551.97--

2.061.621.571.711.681.851.471.441.472.061.561.571.751.621 .471.611.66--

1.751.511.661.451.351.591.331.461.361.551.521.681.541.331.651.551.451.561.531.041.38~----~--

Copper (mg/L)

84.4848571.884.285.2

87.789.98883.883.682.278.983.790.568.983.489.281.974.589.381.890.092.8

84.083.784.092.986.685.278.883.591.997.110711412510711211312712812912214713512813010694.6125

Cadmium (mg/L)

2.652.852.853.223.363.3

2.72.52.52.62.562.72.82.943.23.23.063.313.253.393.623.523.863.86

3.533.63.53.83.543.493.293.373.292.812.912.572.682.582.72.713.393.673.663.914.88 ~ ~--

Zinc Sulfate (Reference) Remarks (mg/L) (mg/L) v '

450 -- (13)450500540570462

415

(13)(13)(14)(14)(14)

(14)579 - (14)415 -- (14)372 - (14)432 -- (14)408 -- (14)428 -- (14)455 -- (14)510 -- (14)469 - (14)522 - (14)514 -- (14)518 -- (15)486 -- (15)593 - (15)580 -- (15)603 -- (15)601

553572576602563

(15)(15)(15)(15)(15)

555 -- (15)509 -- (15)522 - (15)520 -- (15)451 -- (15)465 -- (15)399 -- (15)417386403428501556564

(15)(15)(15)(15)(15)(15)(18)

572 -- (18)692 - (18)683 -- (18)548 -- (18)560 - (18)682 -- (18)632 -- (18)688 -- (18)

59

Table B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-89


Date

3-21-406-22-407-18-408-03-408-14-40

1-03-412-15-41

1-03-44

7-26-44

1-01-45

6-02-45

1-06-46

1-15-47

6-25-47

2-02-48

4-22-55

4-24-55

11-11-58

12-04-58

1-07-59

2-04-59

2-27-59

3-04-59

4-09-59

Discharge (gal/min)

49030513013070

310450

~

«

-~

~-~

42424545

7575

205205500

500

520520225225

pH

2.02.52.63.22.2

1.62.0

----

--

~

.. -

.-

1.61.71.41.6

-~

~ 1.8

1.9

~ -


1601021

60

100120

258266845

56531.5

30335.5

488298

308302429180

51749.4

360100300135

43080

24573

21097

46030

342

96 --

27126

29247

Zinc (mg/L)

~

..««

2,7502,460

4,500

2,2802,3601,3301,340

3,0102,790

2,0001,8001,900

320

.. -

._

1,720

2,050

-

Sulfate (Reference) Remarks (mg/L)

(1)(1)(1)(1)(1)

(1)(1)

(2)(2)(2)(2)

(2)(2)(2)(2)

(2)(2)

(2)(2)(2)(2)

(2)(2)

(3)(3)(3)(3)

(4)(4)(4)(4)

(4)(4)(4)(4)

21,700 (4)

21,700 (4)

(4)(4)(4)(4)

EffluentEffluentEffluentEffluentEffluent

EffluentEffluent

InfluentEffluentInfluentEffluent


InfluentEffluent


InfluentEffluent



InfluentEffluentInfluentEffluentComplete analysis;

InfluentComplete analysis;

EffluentInfluentEffluentInfluentEffluent

61

Table B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-89-Continued

Date Discharge (gal/min)

H pCopper Cadmium Zinc Sulfate (mg/L) (mg/L) (mg/L) (mg/L)

Remarks

5-05-59

6-04-59

8-05-59

9-18-59

10-30-59

1501501251259292

110110100 1.9

100 2.0

21755

21421

19043

21254

234 - 1,2

~ ~

70

193 - 1,460

_

~

~

--

--

20,500

20,600

(4)(4)(4)(4)(4)(4)(4)(4)(4)

(4)

InfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentConductance, Fe;

InfluentEffluent

1 -65

2 65

3 -65

4 -65

5 65

6 -65

7 65

8 -65

9 65

10 -65

11 65

12 65

1 66

2 -66

3 -66

4 -66

5 -66

6 -66

7 -66

8 66

2952951901901501505755752252251501507070606043434646

400400

9090

175175485485355355

90906060606060602525

32075

32895

30045

26015

24025

28520

23520

1125

13010511525

29530

20535

15538

23055

20840

20938

15537

15038

12440

13040

4-

(5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5)

(5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5)

Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent

Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent

62


Date

9 -66

10 66

11 -66

12 -66

1 -67

2 -67

3 67

4 -67

5 -67

6 67

7 -67

8 67

9 67

10 67

11 -67

12 -67

1 -68

2 68

3 -68

4 -68

5 -68

6 -68

7 68

8 -68

9 -68

10 -68

Discharge jj (gal/min)

25253030

245245360360

240240185185435435350350360360235235150150140140135135135135150150215215

21521527027030530523523518518518518516516511011070704545


12541

13042

29555

25853

2862

23545

16557

12039

13035

16538

16035

16835

16539

11020

17025

25035

31037

22550

25535

22535

18540

18535

18039

18540

18030

17035

Zinc Sulfate (Reference) Remarks (mg/L) (mg/L)

(5)(5)(5)(5)(5)(5)(5)(5)

(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)

(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)(5)

InfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluent

InfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluent

InfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluent

63

Table B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-89--Con//nuec/

Date

11 -68

12 -68

1 -69

2 -69

3 69

4 69

5 -69

6 -69

7 -69

8 69

4 70

5 -70

6 -70

9 70

1-22-713-02-714-28-719-29-719 71

10- 71

11 71

11-03-7112-21-7112-28-7112 -71

1-20-721-25-721 -72

2-01-72

Discharge (gal/min)

45 45 90 90

150 150 260 260 175 175 150 150 150 150 145 145 90 90 90 90

75 75 60607570707040

1004045402525404040403540404040

6045404060

pH

-

-1.391.52

--._1.73

1.581.361.181.31---~~~«1.41.451.45 ~

1.01.5-~1.5


175 45

200 55

270 65

260 60

195 60

197 45

195 55

197 45

192 45

195 40

175 18

17315

175146160

10175

133183153174185

12210

15205

20275455435200

10

341336421

7329

Zinc (mg/L)

~

~1,030

~ _

1,^00

^651,1101,1001,640

~~

1,5501,7501,750

_

1,0701,190

(

l,3fO

Sulfate (mg/L)

--

4,890

_

10,300

5,30010,40010,10010,800

~

8,7008,6809,700

-

6,7306,270

6,750

(Reference) Remarks

(5) (5) (5) (5)

(5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5) (5)

(5) (5) (5)(5)(17)(17)(5)(5)(17)

(17)(17)(17)(17)(5)(5)(5)(5)(5)(5)(17)(17)(17)(5)(5)

(17)(17)(5)(5)(17)

Influent Effluent Influent Effluent

Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent Effluent

Influent Effluent InfluentEffluentInfluentInfluentInfluentEffluentInfluent

InfluentInfluentInfluentInfluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentInfluentInfluentInfluentEffluent

InfluentInfluentInfluentEffluentInfluent

64

Table B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-89- Continued

Date

2-08-72

2-22-722-29-722 -72

3-07-723-21-723 72

4-04-724-11-724-18-724-25-724 72

5-02-725-09-725 -72

6-01-726-26-726 72

7-17-727 -72

8-01-728-15-728 -72

9-12-729-29-729 72

10-11-7210 -72

11-01-7211-16-7211-29-7211 72

12-21-7212 72

1-15-731-26-732-13-732-23-733-27-734-19-73

Discharge (gal/min)

8085858580809090909090

12012012012012011080

11011060508080606060606060605050505060606060

2501006060706060

120150320240150150

pH

1.51.61.61.6 -1.441.48 ~1.51.411.31.3~--1.371.4-~1.311.26-~1.24- 1.251.25~~1.181.2---1.15-~1.261.31.18~-1.26~

1.11.11.96

1.061.19.98


350279254238350

5259238259

1216234246200246

2.1196191196

0.8194194191

0.6190192

2184198198

2.4192182192

1.518318424

180690330180

3350190

5

340220320247242310

Zinc (mg/L)

1,3201,2501,2001,270

-~

1,3901,320

~~

1,2901,1701,3701,200

~«

1,3081,118

«

1,3001,400

1,450 ~

1,4501,530

«

1,6001,540

-~

1,540««

1,3101,5801,520

~

1,410-

1,1901,0001,1001,0701,2801,990

Sulfate (mg/L)

6,6806,8306,8306,750

7,1807,430

7,1806,6809,1807,500

8,1607,760

8,1309,250

9,750

9,80010,300

10,40010,000

~

10,200

8,0007,6009,400

8,500~

8,4007,800

14,40012,9009,900

14,600

(Reference) Remarks

(17)(17)(17)(17)(5)(5)(17)(17)(5)(5)(17)(17)(17)(17)(5)(5)(17)(17)(5)(5)(17)(17)(5)(5)(17)(5)(5)(17)(17)(5)(5)(17)(17)(5)(5)(17)(5)(5)(17)(17)(17)(5)(5)(17)(5)(5)

(17)(17)(17)(17)(17)(17)

InfluentInfluentInfluentInfluentInfluentEffluentInfluentInfluentInfluentEffluentInfluentInfluentInfluentInfluentInfluentEffluentInfluentInfluentInfluentEffluentInfluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentInfluentEffluentInfluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentInfluentInfluentEffluentInfluentInfluentEffluent

InfluentInfluentInfluentInfluentInfluentInfluent

65

Table B3. Water-quality and discharge data from Bouldeij Creek copper plant, 1940-89- Continued

Date

5-15-736-06-736-12-737-05-738-01-739-06-73

10-15-7311-15-7312-12-7312-20-73

"" - - -

Discharge (gal/min)

- - . __

70757560604550

400180150

- ' - , ___ .

pH

0.971.071.071.181.261.21.271.311.161.25


250 ~237230234210204202360240240

- -

Zinc (mg/L)

- - . , __

1,i;i;i,51,5Ui;

ci,:i,:

'60'90'70500J10120roo>30100;oo

Sulfate (mg/L)

13,30012,80012,50012,00011,80011,40011,2006,650

11,00011,000

- -

(Reference) Remarks

(17)(17)(17)(17)(17)(17)(17)(17)(17)(17)

- - - _____ . _

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluent

12-07-75

4-03-76

3-02-778-08-779-19-779-19-77

12-09-77

12-13-78

12-20-78

1 -791-11-791-21-792 -792-16-79

2-26-793-21-79

3-31-794 -796-08-796 -79

8-05-80

8-28-80

10-30-80

12-05-80

404050

919159130130130130158120195 7171

5044.244.2

47.547.547.547.548100

1.1

1.1

340

4.23

13.0

9.5 1,210

243323520324445324

333333275304

350350421345456345456262282288276237237

16213215293.4134188130190134183

10.0 14.210.011.210.2

_ 14.7

10.610.6 17.517.517.517.510.410.510.2~12.612.6

10.911.511.610.811.111.211.011.011.112.3

1,3501,3201,2801,3701,7401,370

i _

2,2^0

1.&IO1,850

._2,4502,4502,4502,4501,3071,3501,270

4-

1,7431,740

1,5701,5801,5101,57(1l,47dl,46Ci1,4401.42G1,4701,840

10,170 (6) Complete analysis,sample RH; Influent

33,400 (6) Complete analysis, sample 76WA37; Effluent

(7)(7)(7)(7)(7)(7)

(7)(7)(7)(9)

(9)(9)(7)(9)(7)(9)(7)(9)(7)(7)(7)(9)(9)

(7)(9)(7)(9)(9)(9)(8)(8)(16)(16)

Fe; InfluentFe; InfluentInfluentInfluentFe, Al; InfluentInfluent

InfluentInfluentInfluentInfluent

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluent

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluent

66


Date

1-23-812-27-813-13-813-20-813-31-814-06-814-24-814-29-815-20-816-05-816-10-816-15-817-17-818-06-81

11-01-8111-08-8111-12-8111-15-8111-30-8112-04-8112-09-8112-15-8112-16-8112-20-8112-23-8112-30-81

1-08-821-15-821-22-821-28-822-05-822-19-822-27-823-05-823-11-823-22-823-26-824-07-824-14-824-26-825-01-826-28-827-19-828-06-829-10-82

10-18-8211-08-8211-22-8212-03-8212-27-82

1-13-831-19-83

Discharge (gal/min)

104104345150230159979099939381775570~

207207203182164147147164340242

23125628130633229823741520920923726651027212966.56457433049648790

10494

pH

1.51.31.4.90.99.85.78.79.90.91.85

~ 1.011.51.5-~~--~1.41.4~1.3~

1.21.2

.9

.91.11.2.8

1.41.31.82.02.01.41.21.81.81.81.61.81.61.41.21.21.2

1.01.5

Copper (mg/L)

126153190241260337305280310227221202168163466466235235235221195243243194249307

278274211216343269296269283259169169285297209148131113113102186125130285

138137

Cadmium (mg/L)

7.057.769.84

10.19.1

10.912.312.314.710.711.211.210.010.911.211.29.39.39.3~9.5

11.111.19.58.7

10.8

9.110.210.710.910.29.4

11.59.3

10.810.68.38.39.7

12.711.310.610.38.59.88.6

10.89.17.98.5

8.07.2

Zinc (mg/L)

1,0001,1301,2801,4001,2701,5401,8801,7401,9601,5201,5501,4601,4801,5101,7181,7181,1501,1501,1501,1301,3001,4701,4701,3001,2601,460

1,3901,5101,5401,5101,4101,3301,5301,5501,5101,5801,4101,1901,6401,6201,4401,6801,3201,2201,5201,2401,5101,4901,3001,130

9941,040


(9) Influent(9) Fe; Influent(9) Influent(9) Influent(9) Influent(9) Influent(9) Influent(9) Influent(9) Influent(9) Influent(9) Influent(16) Influent(9) Influent(9) Influent(16) Influent(9) Influent(9) Influent(16) Influent(16) Influent(16) Influent(16) Influent(16) Influent(9) Influent(9) Influent(16) Influent(16) Influent

(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent(9, 16) Influent

(9, 16) Influent(9, 16) Influent

67

Table B3. Water-quality and discharge data from Bouldef Creek copper plant, 1940-89-Continued

Date

1-24-831-26-831-28-832-04-832-15-832-24-833-02-834-04-834-06-834-29-836-06-836-14-837-11-838-26-839-21-839-26-83

11-04-8312-01-8312-14-8312-29-83

1-10-842-15-842-22-842-29-843-07-843-14-843-20-843-27-844-03-844-11-844-17-844-26-845-02-845-08-845-16-845-23-847-13-849-04-84

10-11-8410-26-8411-07-8411-13-8411-21-8412-01-8412-07-8412-21-8412-28-8412-31-84

1-04-851-11-851-18-851-25-852-11-85

Discharge (gal/min)

1033694743844153394232923503001501504735506435

242266134

659131100938692

1231651151088885787469645643253930

164507590

125100125

10090857067

pH

1.71.91.1

.91.01.01.21.41.461.31.31.3

.941.11.32.81.451.0-

._ - ---- --~~ --1.31.2--1.2-

.88~1.9~1.71.081.7

1.92.01.91.91.06

Copper (mg/L)

12710466429020223919615215415415115717610897

11981

170175151

208158200153134129149149137154130128118119125-

105968387

182400169125125109126109

118111110108100

Cadmium (mg/L)

7.05.79.18.15.67.66.46.05.76.18.99.4

13.28.28.19.28.06.04.56.0

7.87.48.17.17.57.57.57.37.78.47.98.17.77.57.3 7.77.47.76.86.39.56.1 5.76.85.7

6.16.06.06.06.0

Zinc (mg/L)

917700

1,11,0

71,1

737

1,01,41,41,91,2U

60406420591597404090102070

9661,180

832730849

1,1501,2201,360U501,3101,0201,1301,1801,2201,3301,11,11,31,31,1

1,01,1

3080305070

6020

7$>498

1,48

696

19;:l6009

43C443

728730726734894


(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(16)(9, 16)(16)(9, 16)(9, 16)

(16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(16)(9, 16)(9)

(9, 16)(9, 16)(9, 16)(9, 16)(16)

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluent

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluent (12-31-84?)InfluentInfluent (12-21-84?)

InfluentInfluentInfluentInfluentInfluent

68

Table B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-89- Continued

Date

2-15-852-22-852-27-853-08-853-15-853-20-853-22-853-28-854-08-855-21-856-03-856-05-857-14-859-17-859-10-859-20-85

11-04-8512-02-8512-07-8512-13-8512-16-8512-20-8512-27-85

12-31-85

1-04-86

1-10-86

1-17-86

1-18-861-24-86

1-25-86

1-31-862-03-86

2-04-862-10-86

2-14-86

2-20-86

2-21-862-28-86

3-07-86

Discharge (gal/min)

6060554040284035403045302530272525335245464040404040

3737303060608550502828

113200200

-155155125125-~--

4545

196150150

pH

2.01.71.71.91.71.7-1.61.91.5

--1.51.51.01.221.31.51.281.51.71.01.91.2---

1.3 1.1 1.2~

.841.1~----1.1-

.971.0--1.2 ~ --1.2«~----

Copper (mg/L)

10410195979796959294949191639086

10110265

183187180183162162

5.3140

1331.9

1471.0

2081.7

160209

1.7134

.63164238

1.9260235

1.9227

3.4490

12.4430347

23260316

12.1

Cadmium (mg/L)

6.96.56.06.46.96.66.66.47.06.46.16.93.56.35.66.96.64.67.77.79.07.87.0~7.0

5.8-6.4--8.29.5 8.2~7.78.5-6.26.2..6.2--5.7~6.98.7-6.68.0~7.6

Zinc (mg/L)

855803720711774730730700730619912567302583900717677710833842

1,400842784

784-

_.597

686--

8601,460

~860

1,1201,130

~632

1,000

628

539-

7621,240

~686

1,100-

592

Sulfate (Reference)Remarks (mg/L)

(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(9, 16)(16)(16)(16)(16)(16)(16)(11)(11)(16)

(11, 16)(11, 16)(11, 16)(11, 16)(11, 16)(11, 16)(16)(11, 16)

(11)

(16)(11, 16)(11, 16)(16)(11, 16)(11, 16)(11, 16)(11, 16)(11, 16)(11, 16)(16)(11, 16)

(16)(11)

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentEffluentInfluent

InfluentEffluentInfluentEffluentInfluentEffluentInfluentInfluentEffluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluent

69

Table B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-89--Continued

- - .

Date

3-14-86

3-21-86

3-28-86

4-04-86

4-11-86

4-18-86

4-25-864-28-86

5-02-86

5-09-86

5-16-86

6-12-86

9-21-86

10-08-8611-15-8611-25-8612-04-8612-11-8612-18-8612-20-8612-31-86

1-06-871-08-871-14-871-21-871-22-871-30-87

2-03-872-10-872-13-872-17-87

Discharge (gal/min)

- _

22037537526623023022026026014215015012512512512512511097959560605050505055552525302528~

3035

30

4540

7050

75 -

100100

pH

' -

~ ~ ~-----~--1.3~1.5-1.5~1.4

--1.3 1.5 1.51.5 ~ 1.01.0

1.0~1.01.0 "1.0 1.0--1.0

' .

Copper (mg/L)

_

265294

7.3260276

6.0312343

3.0346374

11.4348601

3.5508

3.7305310477

1.2454

24290

2.33290

2.04263

1.9158

.70149134134122112114126124

156148169214190180209250209210280178

3.1

- . Cadmium Zinc

(mg/L) (mg/L)

7.9 l.Q&r--6.7 65(17.8 1,040 6.4 5578.8 1,310 7.3 659

H.3 1,340--7-8 7139.5 1,320~

11.0 890--

11.0 8509-4 1,3609.4 1,380-

H.O 880~

13.0 740--

12.0 1,420-

12.0 1,390--9.3 1,790~

10.0 1,18010.0 1,2109.8 1,2107.7 1,1408-0 1,0808.5 1,1606-9 1,030

12.0 1,39012.0 1,350

14.0 1,95012.0 1,70014.0 2,0208-3 1,3809.3 1,340 8.3 1,140

11.0 1,5208.3 1,2907.4 1,0807.0 1,020 6.2 980

___ Sulfate ro f (mg/L) (Reference) Remarks

" (16)~~(11)

(16)(11)

(16)(11)

(16)(11)(11)(16)(11)(11)(11)(11)(16)(16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(12, 16)(16)(16)(16)(16)(16)(16)(16)(16)

(16)(16)(16)(16)(16)(16)(16)(16)(16)(16)(16)(13)(13)

- InfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentEffluentInfluentInfluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluent

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentEffluent

70

Table B3. Water-quality and discharge data from Boulder Creek copper plant, 1940-89-Conf/nueaf

Date

2-24-87

3-03-873-06-87

3-10-873-13-87

3-17-873-24-873-27-87

3-31-874-03-87

4-07-874-10-87

4-14-874-17-87

4-23-874-24-87

4-30-875-17-87

6-15-87

7-15-87

8-19-87

9-20-87

12-01-87

12-09-87

12-22-87

12-31-87

1-07-88

1-14-88

1-21-88

1-28-88

2-03-88

Discharge (gal/min)

8080~

8080~

110110--

8686~

8080-

8080-

7070-

6060~

60605050454525252525~~~ ~ --

--~~- ~~~~

PH

1.0 1.0~ 1.0"~~1.0"~1.0~--1.0~--1.0" 1.0~~1.0 1.5~1.5 1.5 1.5 1.21 1.53 -- 1.03

1.18 1.07~1.0 --

.88~

Copper (mg/L)

200111

3.1150187

1.2170151

4.2150141138

.7144143

.5148147

.5158138

.7150143

.7130138

1.5127

1.498

.74114

9.1114

2.595.96.4

565182274

.42214

1941.1

2433.08

1821.15~~

20.7.53

Cadmium (mg/L)

6.4~5.95.6 6.45.3~4.94.24.8--8.95.15~7.65.6 7.66.25 8.16.2 8.55.7 8.9~8.0 8.3

-7.2

«7.86.05.457.47.056.76.66.5

6.2 ~5.325.46.86.67.0-

Zinc (mg/L)

980~

980840

900790

30650720

870800

950880

960960

980900

~1,000

830~

1,020

1,100

1,100~

910

1,100890800

1,090110696705940

676

~

798828

~~

962--


(16)(13)(13)(16)(13)(13)(16)(13)(13)(16)(16)(13)(16)(16)(13)(13)(16)(13)(13)(16)(13)(13)(16)(13)(13)(16)(14)(14)(14)(14)(14)(14)(14)(14)(14)(14)(14, 16)(14, 16)(14, 16)(14, 16)(14, 16)(14, 16)(16)

(14)(14)(14)(14)(14)(14)(14, 16)(14, 16)(14, 16)(14, 16)

InfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluent

InfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluent

71


Date

2-11-88

2-19-88

3-18-88

4-06-88

4-21-88

5-05-88

6-15-88

7-06-887-15-888-17-888-24-889-20-88

10-20-8811-09-8811-17-8811-18-8811-30-8812-07-8812-13-88

1-04-891-11-891-19-891-25-891-30-892-06-892-14-892-22-893-06-893-11-893-13-893-20-893-25-893-27-894-03-894-10-894-17-894-24-895-01-895-15-896-14-897-14-89

Discharge (gal/min)

_~ «

30

25 «~«~-

..1962394360602552

250160

17111110798747055

94

pH

0.82 1.17 ~

.68 ~

.90 1.091.01.051.3

.921.6

.91

.972.1--

1.291.54

.841.191.04.74.99

1.34.87

1.3.67.83

«.76.82.49.23.72

1.55.60

Copper (mg/L)

226.34

20148.8

204.87

178.216.6

165195208203171

13.415715490

164101144148169170218176203

11997

17612012815314978

148276264274317244338384334320156328

--

Cadmium Zinc Sulfate (Reference) Remarks (mg/L) (mg/L) (mg/L)

8.15 1,150 -- (14, 16)8.15 1,180 -- (14, 16)7.85 1,0507.6 991 8.0 1,070

(14, 16)(14, 16)(14, 16)(14, 16)(14, 16)(14, 16)

f- -- (14,16) ....8.3 1.14C8.18 1.14C._

(14, 16)(14, 16)(14, 16)

) -- (14, 16)> -- (14, 16)

(15, 16)8.11 1,160 -- (15, 16)6.3 58$ -- (15, 16)8.43 1,220 -- (15, 16)6.9 717 -- (15, 16)

-* (15, 16)7.42 1,100 - (15, 16)

-. (15, 16)9.71 1,360 -- (15, 16)

10.7 1,480 -- (15, 16)1,170 -- (15, 16)

10.6 1,420 -- (15, 16)

5.76 868J -- (15, 16)4.21 670 -- (15, 16)

10.4 1,430 -- (15, 16)6.4 948 - (15, 16)6.48 944 -- (15, 16)8.54 1,210 -- (15, 16)8.24 1,140 -- (15, 16)3.26 509 -- (15,16)8.16 1,080 -- (15, 16).. (15, 16)9.03 1,240 - (15, 16)8.8 1,220 -- (15,16)

1,700 - (15, 16)7.67 1,040 -- (15, 16)

10.3 1,360 i -- (15, 16)11.3 1,460 - (15, 16)10.8 1,38C10.5 1,34C3.77 56$

11.0 1,47C

) -- (15, 16)) -- (15, 16)» -- (15, 16)) -- (15, 16)

(15, 16)

InfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentEffluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluent

InfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentInfluentFlume outInfluent

72

Table B4. Water-quality and discharge data from Richmond Mine emergency treatment plant, 1989-91

[All concentrations refer to influent to plant; gal/d, gallon per day; mg/L, milligram per liter; , no data]

Date

12-01-8912-02-8912-03-8912-04-8912-05-8912-06-8912-07-8912-08-8912-09-8912-10-8912-11-8912-12-8912-13-8912-14-8912-15-8912-16-8912-17-8912-18-8912-19-8912-20-8912-21-8912-22-8912-23-8912-24-8912-25-8912-26-8912-27-8912-28-8912-29-8912-30-8912-31-89

1-01-901-02-901-03-901-04-901-05-901-06-901-07-901-08-901-09-901-10-901-11-901-12-901-13-901-14-901-15-901-16-90

Volume _TT (gal/d) PH

28,80028,80028,80028,00028,00028,00028,00028,00028,00028,00028,00028,80028,00028,80028,80028,80028,80028,80028,59837,44031,53631,53631,62234,56032,40029,92329,95228,94428,65828,65828,658

28,36826,35226,49625,92027,07226,64025,34425,63225,92024,62425,77626,78445,21637,00831,68043,344

Copper (mg/L)

204204204196196196166166166166166166173173173173157154179178175177184186187185181174176172177

166168167176177178171172175176172168154164167147

Cadmium (mg/L)

10.710.710.710.710.71010101010101014141411.5141413.213.313.11311.91211.611.812.212.412.912.412.5

12.512.112.211.712.812.512.612.312.712.812.912.711.412.412.412.6

Zinc (mg/L)

1,7001,7001,7001,7001,7001,8001,8001,8001,8001,8001,8001,8001,6001,6001,6001,7001,7001,6001,5001,7001,5001,7001,7001,8001,8001,8001,7001,7001,8001,8001,800

1,9001,8001,8001,7002,0001,7001,8001,8001,8001,6001,8002,1001,7001,9001,8001,900

Zinc/Copper (Wt. ratio)

8.38.38.38.78.79.2

10.810.810.810.810.810.89.39.39.39.8

10.810.48.49.68.69.69.29.89.69.79.49.8

10.210.510.2

11.510.710.89.711.39.6

10.510.510.39.1

10.512.511.011.610.812.9

(Reference) Remarks

(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)

(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)

73

Table B4. Water-quality and discharge data from Richmond Mine emergency treatment plant, 1989-9 1~ Continued

Date

1-17-901-18-901-19-901-20-901-21-901-22-901-23-901-24-901-25-901-26-901-27-901-28-901-29-901-30-901-31-902-01-902-02-902-03-902-04-902-05-902-06-902-07-902-08-902-09-902-10-902-11-902-12-902-13-902-14-902-15-902-16-902-17-902-18-902-19-902-20-902-21-902-22-902-23-902-24-902-25-902-26-902-27-902-28-903-01-903-02-903-03-903-04-903-05-903-06-90

Volume TT (gal/d) PM

43,77617,78431,96241,90448,09649,24848,96051,26450,83249,82445,21640,89649,82448,96046,22446,09036,62342,50337,92841,33229,71538,12641,47233,89139,41940,95039,08142,16147,13340,77633,46444,08741,14339,47940,04043,56639,75836,20835,04533,00934,04029,76438,69143,20042,62442,62439,74432,93741,904

Copper (mg/L)

140173146146168173161134150168168168130187177200210928519020020020018018020018018018017018018017017017016017017017016015014088152152145146146179

Cadmium (mg/L)

13.114.111.815.415.915.615.515.515.814.514.614.613.813.813.713146.361314131313131413141312141313131312131412121375.8

12.512.412.212.111.711.6

Zinc Zinc/Copper (mg/L) (Wt. ratio)

2,400 17.12,1002,3002,3002,5002,1002,3002,4002,2002,4002,4002,400

12.115.815.814.912.114.317.914.714.314.314.3

2,300 17.71,900 10.212,100 11.91,900 9.51,900 9.0900 9.8900 10.6

1,900 10.01,800 901,900 9.51,900 9.51,900 10.61,800 10.01,800 9 01,8001,9001,9001,8001,9001,8001,8001,8001,8001,700

10.010.610.610.610.610.010.610.610.610.6

1,900 11.21,700 10.01,800 10.61,800 11.311,600 10.71,000 7.1900 10.2

1,9001,700

12.511.2

1,700 11.71,700 11.61,800 1231,800 10.1

(Reference) Remarks

(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)

74

Table B4. Water-quality and discharge data from Richmond Mine emergency treatment plant, 1989-9 ]-Continued

Date

3-07-903-08-903-09-903-10-903-11-903-12-903-13-903-14-903-15-903-16-903-17-903-18-903-19-903-20-903-21-903-22-903-23-903-24-903-25-903-26-903-27-903-28-903-29-903-30-903-31-90

11-30-9012-01-9012-02-9012-03-9012-04-9012-05-9012-06-9012-07-9012-08-9012-09-9012-10-9012-11-9012-12-9012-13-9012-14-9012-15-9012-16-9012-17-9012-18-9012-19-9012-20-9012-24-9012-25-9012-26-90

Volume ^TT (gal/d) PH

43,20044,06443,63243,63245,64845,64844,78445,93645,21647,80847,80847,95247,95245,79246,08046,94446,08046,08045,64845,64845,93644,64045,07244,78444,78418,00017,42417,42418,43217,28018,00017,85617,85617,56817,56917,56818,00018,57618,00017,71217,71217,71217,71217,71217,71216,56014,97615,26415,408

Copper (mg/L)

165160156138139144143139141146151149149148147147149134131136135139139138137156256247247258245248244245246243235233226224218217242269261259253243249

Cadmium (mg/L)

11.911.711.410.911.311.711.611.511.611.9121211.812.111.911.41211.911.511.711.811.911.611.911.210.717.417.117.417.316.917.316.817.317.317.117.718.017.317.517.417.618.719.118.519.319.510.315.1

Zinc (mg/L)

1,8001,7001,7001,5001,3001,6002,3001,3002,3001,4001,6001,6001,6001,5001,6001,6001,6001,5001,5001,5001,5001,5001,5001,5001,5001,3502,1902,1502,1602,1502,1202,1602,1402,1502,1602,1502,3102,3502,3002,3202,3002,3202,3102,4702,4002,4902,5301,3901,950


10.910.610.910.99.4

11.116.19.4

16.39.6

10.610.710.710.110.910.910.711.211.511.011.110.810.810.911.09.08.68.78.78.38.78.78.88.88.88.99.8

10.110.210.410.610.79.69.29.29.6

10.05.77.8

(Reference) Remarks

(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(18)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)

75

Table B4. Water-quality and discharge data from Richmond Mine emergency treatment plant, 1989-9 }-Continued

Date

12-27-9012-28-9012-29-9012-30-9012-31-90

1-01-911-02-911-03-911-04-911-05-911-06-911-07-911-08-911-09-911-10-911-11-911-12-911-13-911-14-911-15-911-16-911-17-911-18-911-19-911-20-911-21-911-22-911-23-911-24-911-25-911-26-911-27-911-28-911-29-911-30-911-31-912-01-912-02-912-03-912-04-912-05-912-06-912-07-912-08-912-09-912-10-912-11-91

Volume _.TT (gal/d) PH

16,56016,70416,70416,70416,704

16,70416,41614,40014,97614,97616,12816,12815,84015,55215,69616,56016,56016,98415,98415,84015,12014,83215,69615,69615,12015,12012,96015,62414,83215,12015,12015,55215,55215,26415,12015,40815,12015,12015,69615,69615,55215,55215,40815,55215,55216,27216,272

Copper (mg/L)

256256249256256

233238235235232226236231237238238235230226222222224223223222220165164232238232223238238233230229218225227226228228223216211217

Cadmium (mg/L)

19.018.719.218.819.1

19.119.319.118.918.118.719.118.418.618.618.618.618.318.318.118.018.218.017.918.017.815.315.218.318.618.517.719.118.818.418.618.117.517.917.918.318.518.218.117.617.517.7

Zinc (mg/L)

2,4302,4202,4502,4402,450

2,3902,4002,4002,3802,270


9.59.49.89.59.6

10.310.110.210.19.8

2,350 10.42,400 10.22,330 10.12,360 10.02,370 10.02,3602,3502,3202,3102,2902,3002,3102,310

9.910.010.110.210.310.410.310.4

2,330 10.42,310 10.42,2901,900

10.411.5

1,890 11.52,320 10.02,4002,3602,2902,4202,410

10.110.210.310.210.1

2,360 10.12,360 10.82,3402,2402,3202,3202,3502,3702,3502,3402,2202,1702,230

10.210.310.310.210.410.410.310.510.310.310.3

(Reference) Remarks

(19)(19)(19)(19)(19)

(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)

76

Table B4. Water-quality and discharge data from Richmond Mine emergency treatment plant, 1989-9 '[-Continued

Date

2-12-912-13-912-14-912-15-912-16-912-17-912-18-912-19-912-20-912-21-912-22-912-23-912-24-912-25-912-26-912-27-912-28-913-01-913-02-913-03-913-04-913-05-913-06-913-07-913-08-913-09-913-10-913-11-913-12-913-13-913-14-913-15-913-16-913-17-913-18-913-19-913-20-913-21-913-22-913-23-913-24-913-25-913-26-913-27-913-28-913-29-913-30-913-31-91

Volume (gal/d)

16,41618,00019,29619,58419,58420,59220,59221,02420,44821,16821,16821,16821,02421,02421,02421,16820,44820,88020,88020,30421,45619,00821,74425,05630,24030,24033,84033,84035,56836,72038,30438,59238,30443,20043,20044,78444,92845,36048,24048,24063,36063,36078,76893,02493,31291,72888,41684,816

H Copper (mg/L)

217213214207212216217213219218220221222226224231218221215211193208187201216206235264283304328358342334322311291278272245244235220267267253254252

Cadmium (mg/L)

17.817.718.217.518.018.318.218.118.518.218.317.917.817.817.617.917.016.116.015.814.215.713.415.416.916.817.719.619.519.419.821.019.719.618.917.916.816.316.414.915.215.014.816.815.414.614.113.7

Zinc (mg/L)

2,2502,2002,2502,1702,3402,3802,3802,3302,3802,3602,3402,3002,2802,2902,2502,2902,1702,0802,0602,0301,8002,0001,7201,9402,1502,1502,3002,4802,4702,4602,5002,6702,5502,5002,3802,3102,1902,1202,1001,9501,9501,9201,9202,1702,0201,8701,8201,750


10.410.310.510.511.011.011.011.010.910.810.610.410.310.110.09.910.09.49.69.69.39.69.29.710.010.49.89.48.78.17.67.57.57.57.47.47.57.67.78.08.08.28.78.17.67.47.26.9

(Reference) Remarks

(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)(19)

77

APPENDIX C

TIME-SERIES PLOTS OF WATER-QUALITY DATA

cr

oi

o_

o_

O

O

600

450

300

150 0

4000

3000

2000

1000

o N Q

8 3

No

data

UJ c/)O

)

No

data

30 -

_i gj?

20

ff

10tr

0

J

]

Rn

Jln

1940

r

IL

nn19

41

ll

nil,

N°

"ata

(]

fin fi

n n

Onnr

ui _ n

l II hi II 1

11.

Illl19

42

I 19

43

| 19

44

| 19

45H

n

nr-

nfl

^fl

1946

|

1947

|

1948

|

n nr

1949

Figu

re C

l. C

op

pe

r an

d zi

nc c

once

ntra

tions

of

Bou

lder

Cre

ek c

op

pe

r pl

ant i

nflu

ent,

and

rain

fall

at

Ken

nett

and S

hast

a D

am,

1940

-49.

18

Q(Q RAINFALL DISCHARGE CADMIUM ZINC COPPER3 $ (inches) (gal/min) (mg/L) (mg/L) (rng/L) * <D _^<) O -«-roGo 010010 oooc£_N) OOOO OOOOO OOOOC 9'§° " -8

0o0

o0=+

ao'DCO

QDQQ

817Q

<B0o00ocS- 0

o00o0

0

Q

0c"0D^

_ ,

o

QDQ

3

Q

a0DD0=tQDQLC/317QCO. | _ . _ _..._ __

£

Jo___

«

(0

fe

<pw

^^

CD

^

^^

&

§

<0

fe

CD

^

1

(0

""^

]

Z3

n J

11

]

33

3 _____ 1

1 _____

z.0Q.Si 0)

^=3 13:Z3

Z3 1

Z^3

=3

1 1 13

]1

= 1 ]^==3

13 ____" 1 1

IZJ3

313p= 13

3 3

1 1 1 1 1 1 i

>-t -^J{-+

xv>

"

-

,1,1,1,

2oQ.

w

"

r

-

2oQ.JU 0)

-

-

~

, 1 . 1 , 1 ,s/*

\~

,.

,1,1,1,Q

3! RAINFALL DISCH/c (inches) (gal/nCD^C; -* ro coCA> O O 0 0

OO-Q

CD

Q

Q.

OOO

8CD

1O"

2

CDOCQ.CD

O

CD

0 O-Q

$

Q"

CDc"CD f-

FK.Nw,

po

Q

Q.

Q

^

Q

CD

^

aQQ.COITQ

QQQ3 L

(O

o

i

sro

(O

6

i£

(O

s

^H

o

D

D

M

3^

(O

"l 1

i3

a

]

3 =]

i

3 ____^5~~"

3 ___

z0a.3"

=3

13

^

=3

^

f=

1c= i__J^ =1

i =3 '

i

=3

1

3i

1

'D3

3Z3

=Z3I

J

^RGE CADMIUM ZINC COPPERlin) (mg/L) (mg/L) (mg/L)

- IV) CO *.oooo -t co 4^ <T8888 o S 8 S £

~

-

-

8| ClCJ|Q)

"

-

-

z.OaSI Q)

*

1 ' 1 ' 1 ' 1 '

.

+.

/

(~

,1,1,1,

1 1 1

-

.

,

\

\

/"

, 1 , , 1 ,

es

§ RAINFALL DISCHARGE CADMIUM ZINC COPPER c (inches) (gal/min) (mg/L) (mg/L) (mg/L)* -^ N CO *

C^co^o) oooo -* co *» g

-* ro co cnocno oooo cnocnc oooo ooooo oooo ooooc

O

«IDQDQN.^

O

9O<D

!o'

QDQQCOO17Q

<Q<D

CD

8Q.<D

0

<D

OO

<D

Q3.3c<D3.Q

Q.

3

SQ_

a^j

aQQ

^O

958

go

.

8

CO

.CO

s

co2

_»

a

CO

CO *J

io

1CO

3 1-" 1 ' 1

3

1

i

^

313

n

]3

3

I

a3

3 __

s '

3

Z3

1'

p=

^

1 1

1

]^

13

r=3ZT3Zl

^3

=3' i

1 '

:=>

:D

ZD

'

^

' 1 ' 1 ' 1 '

_

.

-

±

X^^

J

1 , 1 , 1

_

-

-

z.0 Q.Bl Di

1 ' 1 ' 1 ' 1 '

.

-

-H-

1,1,1,1,

1 1 ' 1 ' 1 '

_

.

M

+ -M-

m

,1,1,1,

<oiO en

RAINFALL (inches)

DISCHARGE (gal/min)

0 0

<oUl 0

s

<o

<oa

<o52

p

^^«

MM

0

u?(O

Z3 1 '

3

1

3

z:

i

:

===

3

5 _

3 __

ro co0 0

1 ' 1

Z3

1

_i '

n

Z3

1

i

Z3 Z3

=Z3

ZD i

t

1 ZZ)

Zl

1Z3

i

3

-^ CO *>.en o en

o o o o

CADMIUM (mg/L)

oQ.CO

ZINC (mg/L)

- IN) CO *k O O O O 0000o o o o

I ' I ' I ' I '

COPPER (mg/L)

-». CO *>. O>en o en oo o o o

RAINFALL (inches)

-* ro co o ooo

^~r I ' I

3

(O

DISCHARGE (gal/min)

-* co ^. o»tn o tn o

o ooo oI ' I ' I

£8

CADMIUM (mg/L)

ZINC (mg/L)

COPPER (mg/L)

-i. CO *. OTtn o tn o

o o o o o

o a. 21(U

oQ. W (U

98

oXI

o o

CD

O O

oCDD

8coQD Q.

<D CD

CD Oc_Q. CD

O0 CD*rO O

CD

Q

ICD

Q

Q.

3

I

CO

Q 3- QD Q

RAINFALL (inches)

-* ro co o o o o

DISCHARGE (gal/mi n)

-* co ^en o en

o o o o

CADMIUM (mg/L)

ZINC (mg/L)

COPPER (mg/L)

o> o o

-« COen o

o o oO>

en o o o

o Q.a0)

oQ. 0)

I ' I ' I

I.I.I

co -n

§! o fl)

Q 09 3 "

Lo o o

0 ^

ND O

QDao Q ac"

ooD O 0D

OCO

QDa a 8

0

aCD O

a0 1

o00O O D

0

C 0

QDa

RAINFALL (inches)

* 10 co oooo

DISCHARGE (gal/min)

-t CO 4h O>en o en o

ooooo

CADMIUM (mg/L)

ZINC (mg/L)

ocn * * 10 ocno

-* l\5 CO -^ OOOOo o o o oooo

COPPER (mg/L)

-* CO *k O>en o en o

ooooo

7

-? 2! RAINFALL DISCH» Q c (inches) (gal/ro" ®

00Q -O 3 '

Lo

IIN.

O*

QDaoQa3c3o3O(D3.Qo"

QDaa8zrQ(Q(D

icag>O(D

00

$QD

(D=*C(D

Q

aQ

/ N

-» K> co en o o o o o o o o

(0

o

«D-vl

CO

io

tow

(O

*

-*

y{

^BM«

o

! -_-

O

__(O -vl00

3

ZJ

3

S=

3

1

11 __

MziDI

IZ3

^

I

1

_., '

i

13

I]

!= a

i33 , pzb

ra

33

Z3

=

D ,

i

1

=3

3

i

=13

i

=Z3

/' 1 ' 1

RGE CADMIUM ZINC COPPER in) (mg/L) (mg/L) (mg/L)

-i (V) CO 4-v t».o> oooo -kCG-t-a eno _i.^.(\3 oooo enoenc oooenoeno oooo ooooc

1 '

%^_

-

.hrC

\xfTI4-

T

\,1,1,1 ,

1 1 ' 1

-

~

.

+

I

f +-r

^

,1,1,1,

1 ' 1 ' 1 ' 1

-

-

.

<

,1,1,1.

1 1 ' 1 ' 1 '

-

">

^

^

1,1,1,

(O

iopoo

N

O

Q

Q. O Q Q.

C"

O O

O CD

o"

coQ

Q.Q. co" O

Q<S CD

O"

U

O

Q. oO

cCD

Q

aQ. 1\

CO

Q co^QO Q3

RAINFALL DISCHARGE CADMIUM ZINC COPPER (inches) (gal/min) (mg/L) (mg/L) (mg/L)

-* N) CO O O O O

-g o

tD__

§ro

§CO

tD

5!

5en

1

a

1

1

__ i i , 13

3

1

3

1

1 1 __

=3

Z3 3 3

3 ___

i

P-

3 3

3 13

^

3

r=3

1

3 __

iiii13

n,'

Z3

^

C

4

- ro-^ CO *- CD 00cnocno -* -* i\3 oo

sooooocnocnoo o o, 1 , 1 , 1 ,

-

-

-

-

-

»

,1,1,1,

1 1 1

-

-

-

-

-

<

,1,1,1,

1 1 ' 1

-

-

-

-

4

,1,1

c-» N) CO * O O O C

3 O O O C

1 1 ' 1 ' 1 '

-

_

-

-

-

-

,1,1,1,

<o§o

RAINFALL (inches)

-^ iv> co oooo

CO3

DISCHARGE CADMIUM ZINC COPPER (gal/min) (mg/L) (mg/L) (mg/L)

-* CO .&. U1 O O1

o o o o <,,,,,,,

'

,1,1,1,

J>3 3 <

- IV) SO

O 3U10O1OO O O

, 1 , 1 , 1 ,

4

,1,1,1,

1 1 ' 1

« '*

,1,1

(

-^ IV) CO * 0 0 0 C

D O O O C, 1 , 1 , 1 ,

**

,1,1,1,

16

of S3. ^ Q ®

DO

N.

O

QD Q.O Q Q.3c

O O

OCDD

O c/>

Q

Q.

O

Q(3

DO Oc_Q.0

OcB 0 *rO O

CD g.Qp

c0

Q

Q.

Q

I

RAINFALL (inches)

-* ro w o o o o

DISCHARGE (gal/min)

CADMIUM (mg/L)

en o en o o o o o o oen o

ZINC (mg/L)

o o o oo o o oo o o o

COPPER (mg/L)

-* CO >. O>en o en o

o o o o o

_£3 RAINFALL DISCHARGE CADMIUM ZINC COPPERQ c (inches) (gal/min) (mg/L) (mg/L) (mg/L)Q~+ <j> -* ro co ^

'" -* co .&. o> oooo -v co .&. a Of\ -* N> co enoeno -- -* ro o o o o enoenc

\; oooo ooooooenoeno oooo ooooc Q rf 3 f*

i?g

"D

*

D"

0

QDQ.O

3c'30oDO<D

36"

Q

Q.

Q.

$ITQ

O

P,CDOCQ.CD

O

O7T

0

CD Q.Q3-

1o

QDQ.

B

2

(O 00o

CO

iM

i

s

MM*

_»tO

8

§

^M

i

D

PM

0 D

(O

, ' '' F

33

] 1! ______

D

1

=

'

1

^^ 1

P

13D _____

=3

3

3

p3 3

3

ZZI

S^=3____ , n

13

rn

rs '^u

n^5=

n

i

i

Z3m

1 i ' 1 ' 1 '

m

-

I

^±__ ^-"^ ''

/

f

,1,1,1,

, | , | , | ,

>

4^."* -(t

1

,1,1,1,

1 ' 1 ' 1 ' 1 '

.

1 »

if

^

7Je

\

\

1,1,1,1,

1 1 ' 1 ' 1 '

.

\

^*

,1,1,1,

(Q

<3O

oo0 ^

N

QDQ. O Q Q.

C"

O OD O 0D

O coQ

Q. Q. co"

O

Q (30O

o"IT

O

a ot030

Q

a Q

Q

§QQD Q

RAINFALL (inches)

-^ ro co o ooo

] l ' I.' I

DISCHARGE (gal/min)

CADMIUM (mg/L)

ZINC (mg/L)

co b oo wCO

]

-* ro-j. CO .£ O> O Ooiooio -» -» i>a oo

o o o o o o 01 o 01 o o o oI ' I ' I ' I I ' I ' I ' I ' I I ' I ' I

trr

COPPER (mg/L)

-* CO ^ O>01 o 01 o

o o o o oI ' I ' I

RAINFALL (inches)

- ro co o ooo1 ' ' 'TT

DISCHARGE CADMIUM ZINC COPPER(gal/min) (mg/L) (mg/L) (mg/L)

-« CO *k Cen o en c

o o o o c1 1 ' 1 ' 1 '

{\

V-

(

r

i.1,1,1,

3 c

- ro0 0

-« -« ro o o >enoenoo o o

, , , 1 ,

*J

t

f-

,1,1,1,

1 1 ' 1

'*

'

1

^

c-« ro co *0 0 0 C

D O O O C, , , 1 , 1 ,

»t

K

-j

, 4f , 1 , 1 ,

C/> -n

Q? "3Q <»

DO

en "O oo "D oo (D

N.

O

Q.O Q Q.c"

O O

OCD

36"

Q

Q.

Q. </>" O

Q<S CD

Ia(DOcB(DX"

O O D D (D

Q 3-

K

CD

Q

Q.

Q^ Q_

a

RAINFALL (inches)

o -* ro co -^ en| ' I ' I ' I ' I ' I

DISCHARGE (gal/min)

8 § o o oI ' I

CADMIUM (mg/L)

ZINC (mg/L)

COPPER (mg/L)

-* -«. ro ro ouiocn -LGO-^OJ -*-*ro oooo cnooioocnocno ooooooooo

1 II1 I ' I ' ' I ' I ' I ' I 'I I ' I ' I '

>

tr

LU

Q.

Q.

O

o

600

450

300

150

ON

Q

<

O

15 10 5 0

>+-

-f _

111

let

600

< E

gl

300 5 4

3 2 1 n

="

| ,ll

Jill

., I

L . J

kli.

.

.Jj,

. 1.1

, L

Figu

re C

17.

Cop

per,

zin

c, a

nd c

adm

ium

con

cent

ratio

ns a

nd d

isch

arge

of

Bou

lder

Cre

ek c

oppe

r pl

ant

efflu

ent,

and

rain

fall

at

Sha

sta

Dam

, 19

85-8

8.

RAINFALL (inches)

o -» ro co -^ cn I ' I ' I ' I ' I

DISCHARGE (gal/min)

o o OOP

I ' I ' I

CADMIUM ZINC (mg/L) (mg/L)

-«. roS

o o

o en o en o o o oI ' I ' I ' I I ' I ' I

COPPER (mg/L)

_i GO &> O>cn o cn o

o o o o oI ' I ' I

Z! RAINFALL DISCHAF <g (inches) (gal/mi

oo cOO C o-^roco^cn ooc»o

Oo O O0 i

kDO

0Dao0a3c3ooDO03.ao'

2oD 0.0.<f>oD-

O60

£i

§ D

O^-Q03c03.0D 0.

3SQ

ac/>IT0

tD03

isOo71

iOl

_^<o00o>

is00^J

oD 00

, | , 1 1 1 1 1 , | *

m

i-

g^^^^^ B^^*^^~

. -t^" ~ "^~

ta«^~""»

Ir-^

B5T

^ M^ i

mof^- ^ ic=- MMHiV

to

Ui '

pw

»

1 1 '

r1

.

,1,1 OoOo

K3E CADMIUM ZINC COPPER i) (mg/L) (mg/L) (mg/L)

-* ro D o o ro -P*. a 3 -a.-i.ro oo ooc3 OC7IOC7IOO O O OOOC

- - - - ,,,,,,,

_..

;== +

;

"

/*

1 .

;;

1 '

,1,1,1,

1 1 ' 1

.

1 -

j

, 1

. J

, *

1

"

:!

_;

.

?

i i "

tH

1 , 1

, , . 1 ,

,

1

J.

-

1

. :;" .

p

"

; ;::

1

-

+

'. '.

' '

-

' '

H

; i , i ,

(A

0> O QC

2 -

0ll

I ll

1. .

.1

Dec

embe

r

ill

Janu

ary

I. ,i. Fe

brua

ry

n 1,1

:M

arch

A

pril

Figu

re C

20.

Co

pp

er

conc

entr

atio

ns o

f R

ichm

ond

and L

awso

n po

rtal

effl

uent

s, a

nd r

ainf

all a

t Sha

sta

Dam

, D

ecem

ber

1986

-Apr

il 19

87.

2500

o

o

1500

-

D)

O 2 N

500

700

600

500

400

CO

4

< LL.

2

<

2 -

0

Law

son

H I-

II

.1

ll1.

. .1

Dec

embe

r

ill, 1

Janu

ary

ll ll, Fe

brua

ry

1 1 1,1

:M

arch

A

pril

Figu

re C

21.

Zinc

con

cent

ratio

ns o

f R

ichm

ond

and L

awso

n po

rtal

effl

uent

s, a

nd r

ainf

all a

t S

hast

a D

am,

Dec

embe

r 19

86-A

pril

1987

.

20 10

O)

Rich

mon

d

o> I

4

E

2 -

0ll

. l)

1, .

.1

Dec

embe

r

ill.

1

Janu

ary

ll il, Fe

brua

ry

1 1 1,1

:M

arch

A

pril

Figu

re C

22.

Cad

miu

m c

once

ntra

tions

of R

ichm

ond

and

Law

son

port

al e

fflue

nts,

and

rai

nfal

l at S

hast

a D

am, D

ecem

ber

1986

-Apr

il 19

87.

200

s

V)

CD U. z <

cc

4 -

2 -

0II

. (1

1. .

.1

Dec

embe

r

i...

I hil

Janu

ary

i ii. Fe

brua

ry

1 II

1,1 :

Mar

ch

Apr

il

Figu

re C

23.

Dis

char

ge o

f R

ichm

ond

and L

awso

n po

rtal

effl

uent

s, a

nd r

ainf

all a

t S

hast

a D

am,

Dece

mber

1986

-Apr

il 19

87.

eoi

0 (Oo

oOo

RAINFALL (inches)

DISCHARGE (gal/min)

-tk. 00 O O

TEMPERATURE

-L ro ro oo ro o>

SPECIFICCONDUCTANCE

(mmho/cm)

COoen o

DISSOLVED SOLIDS(mg/L)

- ro ro -vj ro -*J en en en ooo o o o g

: Q. i en) O'5

en

«0 O=Ko"OoDQ.c0Q

0CDCD"

3 o03c"

3QDQ.Q. en"

O17Q<Q0O h

SioD oO3-Q

aC0 D_

QDQ.QD0*^=Q^

cn17 Q2J.

_*.CD

s

_*.CD 00 £»

_»,CO00en

o8|

^1

nrnDO

_

^3)___

>TJ 3)

^-<

c_CZ

e_r~

>

O

COrn-o

O3

z11o8

^

rnDO

^33

>"03)

EH££t-_L!. P*- !

&_^P^

_mn^^^_ ^"~

a-

*

1H

mi^mm

i^^^^t___

^BE pFf_b__B____i_

h»r

^

»_

i^^iHH^^^^

..1.1,1,Q '

OQ3

I.I.I.

CD (O0 £ §> 3n-0

SB

So co O

*

RAINFALL (inches)

DISCHARGE (gal/min)

§ $o

Q.

N

O

O 0

o(DD_

s0DtoCD"3(D

c"

3Q

Q.

Q.

UQ(5(D

0.

Q?5O

-Q

O

Q.

(D3(D3.Q

Q.

aSaCOuQ

CO

8

o2

oJ1

0

8c_

z

Tlm03

^^~_

>33

=^

33

|

_^_c_CZ

c_C1

cQ

^^

COm

O3- ^ i

z0

0m o

c_

Z

m03

|33

^

33

*-

Hi

fe-

HF^

SL.

^B_

pv

^^^^

^ hMHM

^T MMMMM

h

&__

..1.1,1,

QQQ3

00 fO O)11' I' I' I' I'

ZINC(mg/L)

co ^. 01000 OOP

11' I I' I' I'

COPPER (mg/L)

8 8 I ' I ' I ' I

£01

Q <

c'Q§*QO8R

a

CoCQ> 0 ^ c/>=: C"

OC"

Q

a

o oo

O c/> O

a aCrt"

O

Q(Q 0

O

O

Q. 03c0

Q

a

ga

RAINFALL (inches)

DISCHARGE SULFATE (gal/min) (mg/L)

CALCIUM MAGNESIUM CADMIUM (mg/L) (mg/L) (mg/L)

IN)& § §VI VIo o

§ro ro01 01o o

CO

8-fi eri o

(O

2

<0 00 01

Q 2! 0 <O

pIs

RAINFALL (inches)

co ^4 o ro

>3Z3. ^~

^O

" Q.

QC3c300

o03.ao"JO

^

IQ

Q.

Q.

Q(Q0

i

§

O

Q

0^*C03-

Q

Q.

aD

Q

aCOD-Q

CO

s

CO 00 fk.

co00en

m

___c_z-nffl CO"Z"

^33

5>

20

|"*

c_Cz

c.

o

COm

O

z

§o mo

c_

Z

mCD

ij,TQ

J]

^T"' ' ' ' IV-^^ M

^

fe-

S""

B&.

iBk

_

mr~

i^m

iHV

^HB__

gg"

^ M

MHM^HMIHHB*

b

M

M

^ I^BI^

.,1.1,1,

Q"

QQ3

DISCHARGE (gal/min)

o I ' I

PH (units)

en____en I ' I ' I

ALUMINUM (mg/L)

01 en88

i i i i

TOTAL IRON (mg/L)

co en o o

O 3!G<oO -2

$ ^ RAINFALL DISCHARGE TEMPERATURE SPECIFIC DISSOLVEDH £g (inches)

f 2 n ??

=s. <" o ro <

<> Q-Oo co cn O_

aCO

©O3 OOODacaQ8©©"

13c"

3QDaaCO"

O

Q(Q©

a &"

0D

O

Q©c"©

QDaQ

aCO

Q

Q

^<c2

CO00Ol

§

|

om o

c_z

Tlm00

§

aDO

_!_,,,,,,

=

^^^^ "

__'

^^ 1 _

""

.^

^M

^ ^ iHB

-1,1,1,

!

\

J*

/

'

.

"*"

, 1

DQ3

(gal/min) (°C) CONDUCTANCE SOLIDS

^

(

i

(mmho/cm) (mg/L) -* 10 ro vl IO vl01 01 01

§ otRS^SSS SS8. i . i .

i 1 i 1 i

111

-

. ')

i , , 1 1 1 1 1 .

1 1 i i\' i i

\y^

X

]T/

f1

j1

1T

\

V

/

"C

^>

/

T/

2\\

+/i

\

\

^

.1,1. , ,1

. 1 . 1 . 1 . 1 > ,

\1

/T1

\\T//

T

1

4\T

fy

1,1.1,1,1

|s

801

2, 2 RAINFALL DISCHARC <> (inches) (gal/mini

to * " o .>£ o ro o <:

|Sa5"o0

<Daao'

CD"

3"O

acoDaa

a<D

r~

§

I<D3»C<D

O

a3;aCO

Q

u4

_^30

01

§

1

Omo

|

I^MMM

n m00

1"

I^HIM

133D

^^

=

^T'

!

^__ __

^

M

^

i

mm

mmmmmmmmmmm

-, 1 , 1 , 1 ,

\_

m

m

/

iOQO3

\

(

I'

1 1 '

JE TEMPERATURE ZINC COPPER (°C) (mg/L) (mg/L)

co 4^ en 9 -» ro ro ooo en 01 j oo ro o) ooo oo n~

1 , 1j_

ii , i , i , i ,

.

i

-

-

/

i , .1,1,1,

, i , i , i , i ,

1,1,1,1,

I

>1 i i i i

/\T/

^-^

^^^

<^.

J.X

ff{V

,1,1,1,1

Q Q RAINFALL DISCHARGE SULFATE CALCIUM MAGNESIUM CADMIUM§ Q (inches) (gal/min) (mg/L) (mg/L) (mg/L) (mg/L) 3^cn tn

0 0OO ^.^ ^.oooo V X o 10 oooo O^ Q

u 3<D C13>o 1,

II "0 D=- <D

CO

<> § oo n) en OQOC3Q

aCO

I<D

O0D

§

Io"DCO

QDaaCO

oUQO<D

O

50D

*-.

Oq-Q_

3c<D3.QDaaD Q

CO

S

co00en

*"

~

§

____

o8

c_

Z

Tlm03

^ i^^*

S£?

^TJJl

-J-l ' 1 ' 1 '

__

"""

^^^^^mm "

^^p^ ^m~

=

-

_~

^^^

~

-.1,1,1,

' 1

''

)

1

1

i 1 i 1 i

^

*

, ,1,1,

Q

II ' 1 ' 111

/

.

.(

m

1 ,1,1,

-^ ro ro co *. ro co cn cn cn cn cn o o o o o o o1^

)

_L

I | 1 | I U 1 |

\i.

\\

\7//i

T

V

\

\.

^-

j/

(

.

,1,1,1,

, | , | ,,,,,,

\

1

\

1

' '

;

m

,1,1,1,1,1

1 '

.

./

.

-

,1,1,1,1,

H C

>2 "5 Q

o o Oo 13 Cn Q

13 Q.

QC

5" c

osoCDD

O

Q13 Q.

Q. S-"Q(Q CD

RAINFALL (inches)

O

Q

CD3cCD

O

Q.

Q.

aCO

oOO O

CC

CD 00en

O 3

1

0o

c_

z

T1mCD

M--»--M

1JD

oJD

_j-l , | . | .

_____

>

--

^ ---. «

-1,1,1,

DISCHARGE (gal/rriin)

-U OOo___o

1 I ' I ' i

pH (units)

ALUMINUM (mg/L)

en____enIf ' I ' I

TOTAL IRON (mg/L)

co eno oo o o o

I ' I ' I

CD (QO C§ 3

0

Co o01 b>

CO

D CD O

o o oD Q.CoQD O CD

CD 3 oCD Q C (D

QDa aCO"

OIT Q

(Q CD O

O'

IT

ODaDo=3- Q.CD

C CDD *-

QDaQD" h

Q

COIT QCO

QO Q3

RAINFALL (inches)

DISCHARGE (gal/min)

TEMPERATURE SPECIFIC DISSOLVED(°C) CONDUCTANCE SOLIDS

(mmho/cm) (mg/L)

-^ r>o co *. o o o o o o o____o11' I' I' I' I' I ' I ' I ' I

00o o o o

I ' I

a 3 0 (Qo c03

0-0

QQ Q

RAINFALL (inches)(gal/mi n)

o oSO 0 l\3

"D 0

i! Q

oo O_<* N

00 ODO0D

Q

0

t-03

!c0

QD Q.Q.

O17Q(Q0

0

3ODa

oi01$C0

QDaQ

§Q

UQ S2.

cc aCO

COcx>

COCDC71

m

__

>z

-n

sm^^

>33

>

33

|<

c_C Z

c_r-

cQ

CO

03 .

g^P^MM

Om0

c_

2

mCO

233

>

33

SEStLLI iM

iHpr- MMM.

^

ib-

BaF»*

PSL.

_

i«_

^*

^^

^ ^

^ ^I^B

^ M ^0_"^= ^ M

M^MMM^M

ft

1^

h»

^MHM^^l^W

,1,1,1,

8 8 1 i 'i 'i i

ZINC (mg/L)

§ 8' I ' I ' I

COPPER (mg/L)

ro .&. en o o o o

4-.1.1.1.1,1 I.I.I.I.I.I.I 1,1,1,11 I.I,I.I.I.I.

CO Tl

?£ " s Q <&RAINFALL DISCHARGE SULFATE CALCIUM MAGNESIUM CADMIUM (inches) (gal/min) (mg/L) (mg/L) (mg/L) (mg/L)

o Q-

§1cr 3(D P^3 O Q

!§go en Q

Oc"

Q D Q.GO

(D

O O D O (D

O 5QD Q.Q. CO'

OD"

Q (Q (D

O=7

O

Q.

O

Q

1C (D

Q

Q.

Q

*> Q.

Q

Tlm CD

CD

O O _*. _L |\jo o o en o o o o o oI ' I ' I ' I 'I'l'l'l'l

~° I t I i I . I I. I. I . I . 1. I I . I . I . I I 1.1.1.I.1.1 J I . I . I . I . I J I . I . I . I .

co en ->io o o -* roo o o o o o

1 I ' I ' I ' I ' ' I ' I ' I '

DISCHARGE (gal/min)

PH (units)

ALUMINUM (mg/L)

TOTAL IRON (mg/L)

P r" r" oo to o> en o 01 o o o o ooo o o oI'I' I ' I ' I ' ' I ' I ' I '

O3!a?

RAINFALL<S £> (inches) ' o» o goI GO"

>0

It

st en y. ' Q."en

O h

Oo0DQ.COQDO<Do"

3

!c?QDQ.Q. en"

OD"

Q£<DP,o"

3oDQ.

O

Q<D^%C<D;"*"

QDCL

aDg

COD"

Q

Q

o ro

X

(O0001

Q

3

o

o m o

c_

Z

T|mCD

1n

>33

_!_| . | | .

r1

_"^^^ ^^___"

i

IHI

MB

MMMMMBBB)

= .1.1.1,

OQ3

DISCHARGE (gal/min)

TEMPERATURE SPECIFIC(°C) CONDUCTANCE

(mmho/cm)

-* ro ro-». ro co *. cj> o -^ o o o o o o o

1 I ' I ' I ' I

DISSOLVEDSOLIDS(mg/L)

8 § o o8 8

i i ii i

o <Qo| cr <&<P, O . <*>

w.oo oDoCD

I o"

CD3CD 3

§

Q

aCOO

Q

O

O

a

CDc"CD D^

Q

a 3 h

Q

CO

QQ"

O Q

RAINFALL(inches)

o ro

(C

2

co00en

8

1

Dm o

1

n m00

133

~0 33

^

_^_

m^

MB

-1,1,1,

DISCHARGE (gal/min)

o 8

TEMPERATURE ZINC(°C) (mg/L)

en en -^ ro co 4^. o o o o o o o o1 I ' I ' I ' I ' ' I ' I

COPPER (mg/L)

ro *k. o> 0888T I' I' I' I'

oo -n

IfQ ® RAINFALL DISCHARGE SULFATE CALCIUM MAGNESIUM CADMIUMg 2 (inches) (gal/min) (mg/L) (mg/L) (mg/L) (mg/L)

*. Cadmiui m, Octobe

2.p *o 3

"R 0 =: CO C <O 3 00 P

QOC3QDac/»C

ICD

OODO

D

1o"Dc/»

QDaaoa cSyaoU30DQ.

0

Q

c"

QDQ.

aQ '

o ro

<C

8

_i.CO0001

§

1

omo

c_>Z

nmCD

>

>I]

_!_j , , , | ,

'

!

MB

""

MM^M

'

m

S£

^ B

1

HB|B M^HHM

^^^ M^

-1,1,1,

COl P

> p p I'l

m

\

H

j

j+

I

I

/J.

/

1T

\LT

. \

I

J-f-11

.

i j

Q

I'l'l

^

llll

§ 38 8 p Pi i 'ii i

J. 4

1\

/\\y/\\i// j

m

1,1,1,1

j^ oo rop p p i i i ! i ' i

.1/

]/i

jijij.i/

ir\V

m

,1,1,1,1,

Ci 8 § 1 1 ' 1 ' 1 ' 1

.

,

/

\f

2/

/I1

J.I//

T\\

,1,1,1,1,

c3 P C

1 1 ' 1 ' 1 '

.

7

,i,i, ,

, o <Q 0 |CD

O3 -*

P1 Q

aQc5"c

o oo(D

g O'

Q

Q

a a

(Qa>

o

o ao Q(D

(DD

QDa QD

aCO17Q

QQ Q

RAINFALL (inches)

DISCHARGE (gal/min)

pH (units)

ALUMINUM (mg/L)

cc2

CO00en

3

1

omo

T|rnCD

^ ^

I3j

133J

___.

;

MM

mt

^ H

i^^^HMMHI

^

^ ^MM

=-,1.1,1,

P r* r* oo f\)o 888 8 8

ri 'j 'i i i I ' I ' I ' I

TOTAL IRON (mg/L)

§ 8 §888

(O

§gOO "O

~O<D ^N.

O

QDa o a ac"

o oo a>DIO'

C/>

QDa a </>' o-3Q

<3 <D

O"

17

O

aT3oQ <D3c<D

QDaaI aC/)

Q v>QD Q3

RAINFALL (inches)

DISCHARGE (gal/min)

CADMIUM (mg/L)

ZINC (mg/L)

COPPER (mg/L)

-* ro _^ ooo ooo*

-* ro01 01 m ro *. o>o o o o o O o

I ' I ' I ' I ' ' I ' I ' I ' I ' I '

OoS0Oo

Tl

(Q

2RAINFALL DISCHARGE (inches) (gal/min)

CD- ro

o ro -t^ o> o o oc_ ^JLLLll ' ' ' 1 ' n ^^^s IBSE^^---

i if " >L03 f

o L_i&^ c_

TI

2

03

^_"~

» ip^~c_ n

CO «-

a c.03

0Z

O

c_ n

S

03

0Zri

-

2to *-53 t_

03

^

-

^ MMMM

^

S= mrS=~-

Z ^

o Srrri , i , i ,

, i , , . i , i ,

f.-.%

|

w

i,1,1,1,1,

CADMIUM (mg/L)

ZINC (mg/L)

COPPER (mg/L)

en en en ro -U a o o o o o o c

1 ' 1 ' 1 ' 1 '

i

1

^ :

f '

w

\\

oCO CO Oo

Q

uQg

3 0 O" r- 5 N_, D«o o Oo ^

r Q§- S o

-

o oo0D

|5co

Q

Q.

a

Q (S

PK

DO Oc_Q. 0

O

0

O O

Q-+

5^c"0

Q

Q.

Q

RAINFALL (inches)

DISCHARGE (gal/min)

ro ^ 088

1 I ' I ' I ' I ' I

CADMIUM (mg/L)

ZINC(mg/L)

COPPER (mg/L)

01 o 01 o -4. _L O O O O

o 01 o 01 o o o oI'l ' I ' I1 I1 '

i. i. 11 i.1.1.iii.i.1 i.i.rvi.i.i.i i ,ii . i , i

ZZl

<o

5RAINFALL

(inches)

COPPER(mg/L)

DISCHARGE (gal/min)

CO O) Ol

CO O) O)

CO O)

CO O) 00

CO O) CO

CO

o

CO

CO

ro

CO

CO

CO

I iRAINFALL

(inches)

8

N.

O

Q

Q.O Q Q.

C"

O O

O <D

O"

c/> Q

Q.aI"Q<3<D

O

OD Q.

O

t

I<D D

Q

Q.

s§

Q <0- QO Q

c_

(n

& 0

Z

o

C.

Tl

S.

-L C.

<_

(n

O

z

o

2

B^-

=r ».«-«.

»

mmmmf

w-*

^ v

SMHP-

&

DISCHARGE CADMIUM ZINC(gal/min) (mg/L) (mg/L)

-» ro-» co *». o> o ocnocno - - 10 oo oooooocnocnoo o o

I ' I ' I ' ' I ' I ' I ' ' I ' I

COPPER (mg/L)

-L CO *k O>

So en o o o o

1 I ' I ' I '

Z! <QRAINFALL

(inches)DISCHARGE

(gal/min)CADMIUM

(mg/L)ZINC (mg/L)

COPPER (mg/L)

» fV3 CO rv»fn-vjr-> f O vi 01 ro o rjy'rgP o o o-*roco^cn ocnocno ocnouio o o o

I ' I ' I ' ' I ' I ' I ' I~I""I~Tc_

CO

Z

o

e_

n

1"e_

CO

0

z

o

e_

C-

B£^~

v _ hHlM*HM

ib

MOT

P»~

LMgep^*-

MM*

»

Ol O Ol Oo o o o o

I ' I ' I

SZl

<Qc (Do

DISCHARGE(gal/min)

COPPER (mg/L)

ZINC (mg/L)

o o ooo

o o o

o o o

I\Do o o

I . I-

(D

2

RAINFALL (inches)

DISCHARGE (gal/min)

ZINC/COPPER (weight ratio)

___oT ' I r

<Q c

2po

OQac"

3o oD O CD15

OCO

QDa acoOzr Q

(QCD

O

. O"

zr

ODa QDa i Q

coOD

O=1Q

CD

cCD D co

QDa Q K

Q

Q

cozr QCo 1-

QD Q

Oo Co

RAINFALL (inches)


CADMIUM (mg/L)

o ____o1 I ' I ' I

I§

RAINFALL (inches)

DISCHARGE (gal/min)

ZINC (mg/L)

RAINFALL (inches)


OSo

T

COPPER (mg/L)

PO -P*o o o o

1 I ' I ' I ' I

O)o o

1,1.1,.,

I<D

aD Oo"O

Q

OCO

ODa aco" O

O<B (D

o'IT

oDa oa

COoD

(D

CO

O

a Q SQ

CO

Q 50- QQ O

$

S

RAINFALL (inches)

o ro___-^___o o 1 I ' I ' I ' I ' I '

J

<o2

1,1,1,1,1,1 1.1,1,1,1

DISCHARGE (gal/min)

-* ro o o o____o

I ' I ' I ' I


Is 8

RAINFALL (inches)

DISCHARGE(gal/min)

CADMIUM (mg/L)

111111

2! <Q

§ O

ZJ"

OO O

O (DZJ

oCO

QZJ Q

O

Q<B0

O"zr

O Q QDa

COo

I03c0Z?

QDa 3§

CO

Q S3.QQ Q

oo co

S

RAINFALL (inches)

[ '

%fc^

2

zei

DISCHARGE(gal/min)

o oro o o

l ' l ' l

I . I

.o o o o 66 o 6 6Q o 0o6 O6o 069o

ZINC (mg/L)

o o o

ro o o o

I1 I ' I ' T

I.I.I

<Q

(D OK

RAINFALL (inches)

^___ o> oi i

DISCHARGE (gal/min)-* ro o o o____o

I ' I ' I ' I

COPPER (mg/L)

o ___ oI ' I ' I

O>o o

J_L

§o

.oo" o o

Q

O. Q.

O

Q<3 <DQ

OIT

1Q_ Q

a

8

l<D

<D

v>

Q

a 3

a a

QO Q

Oocn

RAINFALL (inches)

DISCHARGE (gal/min)


00 k01 *

c_

1,1,1,1,1,

O"~T

O O

'rT~rro o o '1~T~r

. I . I . I . i . I I . I . I . I ,

(Q

IRAINFALL DISCHARGE CADMIUM

(inches) (gal/min)

o ro -&> c

c.

00

O

Z

D

. , , 1 , , , 1 . 1 ,

1

-c.

Tl

-* «^ CO 5fc 00 Ol

>

s

c.

*

mm

7"

-

___

,1,1,1,1,1,

F) CO

D O

1 1 ' 1

-<ti

^ O s^^ C)^^

6cg " a ^ of ^^

mm

wm

wm

.1,1

1 1 '

oi

- Richmond Lawson

<!

i 1 i

(mg/L)ro o o

1 '

mm

wm

mi

wmwm

m

-

-

| ,

C- ro D 0 O

1 1 ' 1 ' 1 ' 1

O <1. Q >1

O <jc <d o \

o <r 6 <d^o <]

IB

wm WM

-

.1,1.1.1

<Q

(D O

D OO O

oCD

Io"

co Q

Q.a

Q(B<D

o"u

oQQD Q.

co O

Q

I<D

Q

Q.

Q

a0)

Q

O Q

Oocn

RAINFALL (inches)

DISCHARGE(gal/min)

ZINC (mg/L)

o o oT

o o o

I ' I ' I

<o

iOs

RAINFALL (inches)

DISCHARGE(gal/min)

COPPER (mg/L)

no -^ o o o o___o

1 I ' I ' I ' I '

O)o o

§ o

O O"

Qa ac/>"

O

Q<S <D

OIT

O

a Qa

Q

I<D

O

aa1aCO

Q 3- QQ O

V1S

RAINFALL (inches)

IP___ A ___ o o 1 I ' I ' I ' I '

DISCHARGE (gal/min)


c.

,1,1,1,1,1, .1,1.1,1,

O O

1 I ' I

ro o oo

ro

I r

I . I

I<B8o

RAINFALL (inches)

DISCHARGE (gal/min)

00en

o o__I ' I

ro o oT

c_

,1.1,1.1.1.1 1,1,1,1.1,1 1,1,1.1.1

CADMIUM (mg/L)

-» ro o_____o

I ' I ' I

o c? o oo9 o

I§oo»

<D

iioaQ. 8'

O

O

Q. O

Q.

Q

<D

IO

a51a

OOV1 8

RAINFALL (inches)

DISCHARGE(gal/min)

ZINC (mg/L)

o

CD01

c_

X

oOO

' I ' Iro o o

I ' I

.1.1.1.1.

o o o ___o

1 I ' I

ro o o o

I ' I '

6 o

6

O

96Q o 0 6

OO»

ro

RAINFALL (inches)

00en

c_

,1,1.

DISCHARGE (gal/min)

o o o oI ' I ' I ' I

COPPER (mg/L)

i>o A o>o o o

o o ___ o o1 I ' I ' I ' I ' I

(D

§O

^ o" o

a8'Q

Q.

oQ

(D O

O'

u

oQ. Q

Q.

5

I

Q

Q

CO

Q

O Q

Ic»

RAINFALL (inches)

00

. 1 . 1,1,1,1

ZPl

DISCHARGE (gal/min)


o oro o o

I ' I

.1.1.1.

n <O

§

RAINFALL (inches)

DISCHARGE (gal/min)

CADMIUM (mg/L)

roO) Oo o

ro o oro

o

O

00

.1.1.1.1.I . I

<o§O o-

D" oo8O CD

O'

Q

Q. Q. § "

Q3 CD

o"U

oQ.QD Q.

O

Q

O

Q

CD 3

CD

QD Q.

a1QCO

Q

Q3

<5Oo? Oo

RAINFALL (Inches)

DISCHARGE (gal/min)

ZINC (mg/L)

A 0)1

I ' I ' I '

CO£ r °° 1 o> I

O

c_I I I I I 1 I I I 1 I I

8 1 i i ro o o

o o o

ro o o oI ' I ' I

(Q

§O o»

O o

CD i

O O

oCD

g_ 5CO

Q

a a§-"

Q(5CD

O"D-

O

a QDa

s IQCD 3

CD

QDa Q§

CO

Q 50- QO Q

O Oo 9-Oo

RAINFALL (inches)

DISCHARGE (gal/min)

COPPER (mg/L)

00 vl

- ro o o

O ______O______O1 I ' I ' I ' I

o"T

ro o o

I r

o oo o

1 I ' I '

(Q

I O

RAINFALL (inches)

DISCHARGE (gal/min)


111111

..1,1,1.1.

o______o_____

$129°

O oQ.C"

Oo oCD

O

OD Q.Q. <7> O

OaCD

O"

17

O

Q. O

Q.

O Q

O

Q

ICD

O

asIQCO

OCO

o

oOo

RAINFALL (inches)

o ro & CD o1 I ' I ' I ' I ' I '

00 -J

CD s: 0000

c_

. I . I . I . I . I . I I . I . I . I . I .

DISCHARGE(gal/min)-^ ro o o o____o

1 I ' I ' I '

CADMIUM(mg/L)- ro o_____o

I ' I ' I ' I

6 o Q 9 OQ

O

O

o

0

Q

o

. I

(Q

§O o>

D OO O

o<DD

IO"

CO

QD Q.Q. co"

O

Q

oIQ.QD Q.

O

D

O

1C <D

?Q

Q.

Q

aCO

Q coQaQ

oo^sj

OO 00

RAINFALL (inches)

DISCHARGE (gal/min)

c_

.1.1.1,1,1. ,1,1,1,1

ZINC(mg/L)

-» ro o o o o o____o

I ' I ' I ' I ' I

Z! <Q

(B Oso

o ooCD

| O

Q

Q.

a</>oQ(3 CD

O"

^

O

o.QDa

§i

ICD

QDa Q

IaCO

Q </>QD Q

O Co vlOo Oo

00-si

CO 00 00

c_

I I I I I I I I I I I I 1 I I I I I I

RAINFALL DISCHARGE (inches) (gal/min)

-^ roo o o ro _ -E* o o o o

1 I ' I ' I ' I ' I ' ' I ' I ' I ' I ' «^k

O

ETi?

COPPER (mg/L)

ro -^ o) o o o o o___o1 I ' I ' I ' I '

<Q

§ O

RAINFALL (inches)

o __ ro -P* o> o1 I ' I ' I ' I ' I '

c_

DISCHARGE (gal/min)


%**

8

z

o

CO

§

1,1,1,1,1,1 1,1,1,1.1,

(5s HAINhALL

§ (inches)oN> o ro -P». aOQQ.

c"

3oooCD

I0"

DCO

Q

Q.Q. co'OITQ(QCD

0IT3oDaQ

ar~

CO

OD

O=}-Q

35CCD</>"

QDaQ

Q

COD-QCOQ"

Q3

^0Oo

s*\

c_

>

__L ff\_ w.

0000

o.

2

o

c_

-n

m

v s00CO

^t

,

c.

, 1 ,,,,,,,,,

M

^

I^B

r- ^^_

^ ^^^ ^ T''^ ^ M

! ""

Mm

MB

i^__ __

i »_

L

i

,1,1,1,1,1,

DISCHARGE (gal/min)

CADMIUM (mg/L)

o 6

O

0

O6oo9o9

9Qo090o06

ro o

1 I ' Io

o

, i .. IO

<Q

§ONJ

RAINFALL (inches)

1 I ' I ' I ' I ' I 'c_

0000

CO 00 tO

I I I I I I I I I I I _

DISCHARGE (gal/min)-* roo o o o

I ' I ' I ' I '

ZINC (mg/L)

-» roo o o o o o

I1 1 ' I<TI ' o

oooo9

9

6 6

o 69 o o66

o

I .

<Q

§ O

RAINFALL (inches)

DISCHARGE (gal/min)

r* o ro -^ oo0

1oouoCDuBouQu aaoITQ<3CD

O IT3OuaQu ao~

£ou

o1CD=fecCD

QUa-^Q

SQ_

Q

COITQ

QDQ3

CO CO1COo

c_

^

-* CO CO CO00

o.

z

D

c_

_

-n

^^CO S00CO

>

§:

c_

, 1 ,,,,,,.,.

"

MB

ik- biM

^^ r

! »

MMi

i

i^Bm

^HBB_ IB

L

^^^ 1^

,1.1,1,1,1,

COPPER (mg/L)

ro Ao oo o

O)o o

1 I ' kf I ' I ' o

c

c_

CO

CD 00 CO

O

o

n

CD >COo

!al

.

c_

RAINFALL (inches)

D ro -^ c, 1 , , , , , 1 , , ,

MMM

^F"*""» I^MMB

m

mi^^mm

^^__

P

^ ^^^mmmmm

IHb= ^fc

,1,1,1,1,1.

n cD

f

<

cC

Cc

"<ic

i1<

-cc c c

-e e r< c <:d c

<:

DISCHARGE (gal/min) -^ ro 0 0 0 0

, 1 , 1 , 1 , 1 ,

|1

^ IT

i 13

iii- bX **

]

/y

1,1,1,1,


n <Q

iOVI

OQ Q.3C3o

oCD

|Q"

2QD Q.Q. s>-O

Q

CD

P.

O

30DQ.QDQ.i

OD

IQc"CD:D

QD0_

Q

g

av>

1QO Q3

^

?

C

C-

>

CO

CO CO CO

O"

0

C-

T|

^

.

CO >COo

_k

.

C-

RAINFALL(Inches)

D ro -^ c, , , 1 , 1 , 1 , 1 ,

Mfc

^

|BH MMM

^^^^^

P"^

^ "^

i«r-^

i^^-^i.. MB

^ IBHBH^

«^*^ -

,1,1,1,1,1,

J) CD

C

-

^

C

C<;c

51

^

1<-c

ccfV

-e<:c^c <cc

m ;

<i

i

DISCHARGE(gal/mln)-* ro O 0O 0

, 1 , , , 1 , 1 ,

31 . ___ .

1o <g

T £"5 i §- (0 3° s D O

D Q.

M

sdTi)3

i.V]

?jrl

tf

5|T* .

1

]

*^V

* ,^V

fro<

1,1,1,1,

CADMIUM (mg/L)

S.1.1.1.

n (O

<5 O

RAINFALL (inches)

DISCHARGE (gal/min)

o0

CO

iCOO

c_

TI

; > COo

c_1 .1.1

ro o o

I ' I '

ZINC(mg/L)

(Oc(DO

RAINFALL (inches)

DISCHARGE(gal/min)

COPPER(mg/L)

ro £>O O O O

O O

(O

<D O

.Oo" o

g.IQa a oQcS 0

O"^~

O

a Q

Ii I00en

Q

CL

aCO

Q S3- QO Q

RAINFALL(inches)

o ro A o

c_

§

O

Z

0

c_

- ~nCD CD

^

c_

, 1 , 1 ,,,,,,,

m»

_

^^B

»____ » " " ""

.1.1,1,1.1,

oT~

O

DISCHARGE(gal/min)

o 8 o oI ' I ' I ' I

D&

tt>


o______o____ I I I I I I r IQ I I

<Q

§

8 O

RAINFALL (inches)

o QQ.

c"

o oo0

aoV)

Q

CLQ.

O

Q(Q 0

OIT

O

Q. Q

Q.

O"O

O

3

0

Q

Q.

Q

^

aen

QaQ

o ro &> o

c_

§O

z

o

CO CO

^

c_

, 1 , , , 1 , , , , ,

1

MMi

MB

Mi

MM

^MMMMM

^ H

^___ 1^ ^^

,1,1,1,1,1,

DISCHARGE(gal/min)

- roo oo o

CADMIUM (mg/L)

6 I ' I ' I ' I '

<D

O <:>

-L ro o o

n (5*

C

000

rxi00

98DI0'

coQDaaoQ(5(D?,o"

I8aaar~

8

30

ic(Dco

Q

a6%Q_

aCO

co

QQQ3

>o"

c

c_

>

* coCO0

O

z.

D

c_

.

-j. "nCDCD

^

>

z

C_

RAINFALL(inches)

) ro -^ c, , , 1 , , , , , 1 ,

I^MiM

^^ MHM^^MMI

^

k.

1^ ^ M

____

1

.1,1,1,1,1,

n c

DISCHARGE(gal/min)

-» ro o o 3 O 0

6 I ' I ' 1 ' I '<3

/ ° r

.1 u3r ft*

_: 3 3

JJN Q-

'

.[.'

<p<p

!

<6 rf _<6

!<&

OK !)

.!1 V'

"

,

-

,1,1,1,1,

ZINC (mg/L)

.1,1.1.1.

~n <Q

§O00ro

Oo o o0

0 0D00D

|O2Q

aaC0~

OuQ

<Q00,

73o"U3oaQ

ar

CO

OD

"O

O

Q

£=fcC0D^</>

QDaQ

%Q^

Q^

CA>UQsaQaQ3

o

c

c_

^

» ^

§

O

Z

O

c_

-L Tl

COCD*~^

^

>

^

"

C_

RAINFALL(inches)

5 ro -f^ c, 1 , 1 , , , 1 , 1 .

MH^iM

w^m

^^

PH^

^ I^^H IM^""

,1,1,1,1,1,

D C

DISCHARGE(gal/min)-* ro o o 3 O O

6 I ' I ' I ' I '

<]

-I °4 j TT I 3J ^ o"

"1 w ^

: D S<o ^

.'.

<Pr

<pI!

$T?1"

m J ^m

<6 *

<po<^

t i < *)]T oOj t_£f

Cft.'o^cj^.^ o ^"^>3

<r/

<T

,1,1,1.1.

c

COPPER(mg/L)

ro £> o 0 0 C D O O C

1 i ' 1 ' ' 1 ' 1 '

<-

0 <]"*

" 6 <|/

0 <1

" o <Jo <i

o <|o <]

'

9 >1. 6 <

6 ^

>_ m

"

mm m

mm m

,1,1,1,1.1,

c9l

g

oOo

5"°

(Q CDQ_ -1

O Q

CD Q

3 ^Q

CD y-

^ -i

co CDO C;

Q 2?.5" q. CD g Q. 3

<a

5- CD(Q CD(Q 3Q. 5 o <QD fDCO ^

CD ^

Q CD Q Q

I!

Q

a QD hQ

co

Q Q"

RAINFALL (inches)

rooo

DISCHARGE(gal/min)-^ roo oo o


00 CO

CD.

o

CO

o

Tl

CO '=.

,,,,,

O Z! 0,0

<D

CD p o

RAINFALL (inches)

DISCHARGE(gal/min)

(Q Q

O -^ ro 99 o o .* oro-i^oo o oQ

Q.

|OO

O"D

D

Q (Q

a

Q.

I

(D3(D

I(Ba31§5;

CDD^

QDa3u1aCOITQ 50-

c_

i. >> CO00CO

CO

oz

0^ WM^MM

c_

Tl

>

C.

CO

°

.

CO

O

Z

D

Tl

COCO '

^

sc_

, , , 1 , 1 , 1 , , ,

.

mmm m

m

mmm

fe=

^

i

m.

mm

m*

mmmm

mm

m

mm

mm

MB

mmm

m

mmmm

pB=-

,1,1,1,1,1,

i I i 1 i I i I i

.

.

" i

Ej : :'-

«

^

.1 ""

MddH ^^JP <m

"

,1,1,1,1,

Q

CADMIUM (mg/L)

-* roO________CD

1 I ' I ' I

DISCHARGE(gal/min)

ZINC(mg/L)

-» roo oo oo o

§3 RAINFALL DISCHARGE COPPER?§ (inches) (gal/min) (mg/L)

Q? co'

® %

concentrator in gallons per

_^ T CO

Is3 discharge jte, was ob1

Q o83a o ~~ ij-

< Q.

6~ (D

® 0

< S-

i-o' Q

influent, ar

_/a3

Q

CO

QQ*"

Q Q

o ro & c

c_

_00 (O

C/5

O

zD

I^HWMHMI^^

c_

-n

"

c_

(O

.

CO

0

z

D

c_

-n

13

C_

, | , | , | , | , | ,

_

c_

m ^^

*"_

i

-

.

M

1^^^

^m

^

i^ KM

b^

1

-

-

.1.1,1.1,1.

J) C

-^ ro0 0

D O O.,.,.,.,.

-

"1

\"«[ 1 "

M

^H

-

^ .

1 _

%bd<^ ^JP ""

-

-

,1,1.1.1.

C

ro 4*. o0 0 C

3 0 0 C, 1 , , , 1 , 1 , , ,

-

. ^a

.A" <3"afi

fir Tr "

tm

M

IM

1.

.

'

*

-

,1,1,1,1.1,

(D

QVJ

§so 3

<D Q -1 D

3 ^- 5' a

|o

Q. 3

»<D

<Q <D(Q 3 Q <D 5"^ "3 (D co ^3

Q. <D Q ^

If

c<D

Q

Q.

CO

Q

aQ

RAINFALL (inches)

ro

CO

o<D O

0)

.,.,.,. 1 .,

991

DISCHARGE (gal/min)


o oro o o

gg RAINFALL DISCHARGE 3 § (inches) (gal/min)£o00 00>O 00

SoQ

|l<Q O 0 O

ll

||"D *"0 Q

discharge of Ri nute, was obta

D'O

11<Q 0<Q 3 Q 0

-3 0 co D-05

<2l reatment p day by 1 A

^ o"

-+

^

0D

QDa3

CO

Q

-* ro 0 0o ro 4^ o> o o o

£ *00 ^ CO

D 8

c_D

-+ -nco cr o

po

-

-^

1 1 ' 1 ' 1 ' 1 ' 1 '

^ ^^

M

W

M»

iMMBHi

^ ^

^m

mmmmmmm^^^

^ ^ W

»

-

,1.1,1.1,1,

1 1 ' 1 ' 1 ' 1 '

1I

*<B.1

-j1

"1

|

^*

-

1

i1

1

-

,1,1,1,1,

CADMIUM (mg/L)

-» roo o

I ' I ' I

If o =;<> O

RAINFALL (Inches)

891

DISCHARGE(gal/min)

ZINC (mg/L)

3" ^

R o CD 0 P 0

(Q <?, Q 3- 0=0

D =fcCO Q

CD-> Q

38D _C. ~~

CD o3Jf

^ Q

IfQ 2

l|<; <*; Cj -~-|

5" CD

(Q S 9. CD§(Q

"D OCD < i

0-3-< CD_, DV

PQ

h

CCD

Q

aS

aCOzrQ

Q

QQ

.<0 o00 < <0

o(DO

Sr =3

<O CD<0 CJO

^P)

>"^

1 I 1 I 1 1 1 1 1 I 11 1 1 1 1

""

_

^ i

M

- - - I

_

_

-_ -« - -

,1.1,1,1,1.

o oro o o

o o o

ro o o oI1!

I . I . I . I

I ' I ' I

.1.1.1.1

Sf -o S<><D

oiIsd "00 0

5 o(Q 3

|I

^1

ions and disc >er minute, v

co Q

rge of Richmond Min obtained by dividing

O 0

® 0

II-. 0N^ '

CD ^ ' Q

I

0

Q

aS

Q

aQ

Q

Q

RAINFALL (inches)

5 ? cx> < CO

8

c_ p)

-* TI CO CDco cr o

.

^

-

"^

, 1 , 1 , 1 , 1 , 1 ,

mm

MMHMI

1

mm

m^mmmmmm MM!

_ MMMMMMMMl

MMM

-

Ml

,1,1,1,1,1,

DISCHARGE(gal/min)

O Oo o

COPPER(mg/L)

roo

o o1 I ' I '

Oo

o> o o

-o

RAINFALL (inches)

ro<j> o

OZ,T

DISCHARGE (gal/min)

-» roo o o o


3- bJ o jj(3 ^C.0 OL. °"^ T^

<Q 0 Q -^O~ Q

CO Q" o 0 Q " D

d discharge of minute, was ot

Q^ 5? 5-o

^" "^ ^ ~;

p(Q 0<Q 3Q 0

CO ^

T3 Q0 ^

a 0Q Q

IfIfD"

h

C03.QDaQD"2*

aCO

Q£3.QDQ

Z0<

COCOo

D8

c_0)3

CO CD CO CT

^p.

0)

"

^ o"^

. 1 , 1 , 1 , 1 , , ,

1

MMMMMMMI

MM

MMMM1

^ MMM^M

MMM

MMMMMH

MMt

MI

M

mm

,1,1,1,1,1,

Sff RAINFALL DISCHARGE? § (inches) (gal/min)o o -j- ro>R IS o o 9!° o ro -F^ o> o o o O -"O

Q

g£to dg.co3(Q O0 O - ^3 5' 013 0

(Q DQ £o a D 6"«" § 73 co0 Q^ D

3 ac £5- ^0 §.

k Q Q (QCO 0

£o3 "*Q 5?D 0(D â 3^s< a^ -^< â 5 5-o(Q 0(Q 3Q 0

o^D 0co D 05

5^.

Q. (5

â ^02, 3. ^ "oi|

5c0D^

QDQ.

5D" h

Q

aCOu

1

ZO<

CO COo

o<DO

c_ 0)

- -n

CO CJ

0)

M

o

1 1 1 1 1 1 1 1 1 1 1

-

."

r*

-

mmmmm^^^mmm

tm

mmmm*^ mmmmmm

iI^^HHMMBMK

MM

J

M

,1,1,1,1,1,

1 I 1 , 1 . , ,

$1I>>IzzV V

\

\f *f *V V

*

\t* *

»

f

1

M

-

L1^1s1%, Six)

1

,1,1,1,1,Q

CADMIUM (mg/L)

-» ro o_____o

1 I ' I ' I

.1,1

*s O w

8

?§3 o(Q §o~ Sw O"

-^ Q

a a&i CD o

C Q

O?

< ^Q-D

o-3< CD

O

Q

§ D"

g

aCO

O

O

O

(inches)(gal/mi n)ZINC (mg/L)

- roo o o o

O

(O (Oo

D8

0)

<o §

0)

£

, 1 , 1 , 1 , , . 1 ,

'

mmmmmmmmmm

m

m

mmmmm mmtmmmm

mmm mmmmmmmmm

mmmm

mmmmmmmm

mmm

mm

mt

mm

,1,1,1,1,1,

6916^069-z 6 6 ! 3DLUO DNllNnid 1N3WNH3AOO Sfl»

D 3 Q (Q

? §

:3 o

r O o

O CD

CD O:_. CD 13 13

Si*i3 Q: = COg O

(D Q

&5 O h

3 o5" 3CD Oa 13

Q:^

(Q (D (Q 5Q. 3 o $ p<Q 00 CD

5 -<Q. =r Q CD

CD. 13

C CD

Q13a Q

1Q u>

Q

RAINFALL (inches)

DISCHARGE(gal/min)

COPPER(mg/L)

roo o

ro o o

ro o o

o o

O)o o

CO COo

0CD O

c_0)

CO CD CO CT

0)

I ' I ' I ' I

compilation and interpretation of water - usgs

Documents