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WORKPLAN

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FILE PLAN Z.Q8

WORK PLAN FOR PARKS

A ND PLAYGROUNDS

ENGINEERING

EVALUATION AND

COST ANALYSIS ,

CALIFORNIA GULCH SIT E

LEADVILLE, COLORADO

Prepared for Asarco, Inc.

495 East 51st Avenue Denver, Colorado 80216-2098

1994

Woodward-Clyde

Woodward-Clyde Consultants

4582 South Ulster Street Stanford Race 3, Suite 1000 Denver, Colorado 80237

Project No. 22909N-22327 (T4001)
Woodward-Clyde

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TABLE OF CONTENTS

Section

1.0 INTRODUCTION M

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1.1

1.2

1.3

1.4

1.5

1.6

1.7

DEFINITION AND OBJECTIVES OF PARKS AND PLAYGROUNDS

PREVIOUS INVESTIGATIONS

1.2.1 CDM Soil Investigation 1991-92 (COM 1993)

1.2.2 Walsh 1987 Soil Sampling <Walsh 1988)

1.2.3 Weston Day Care Soil Sampling 1990 (Unpublished)

DATA QUALITY OBJECTIVES AND DATA NEEDS

SITE ACCESS PERMITS

CULTURAL RESOURCES HEALTH AND SAFETY PLAN WORK PLAN ORGANIZATION

2.0 HELD RECONNAISSANCE ^

2.1 METHODOLOGY

3.0 PARKS AND PLAYGROUNDS ;

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3.1

3.2

3.3

 ' - ' "*""'"-'*"">*« ( ,4^ GENERAL SITE DESCRIPTION IDENTIFIED PLAY AREAS

3.2rl TMMiners Park Apartments and High Country Apartments Play Areas

3.2.2 Kiddie Korner

3.2.3 The Center

3.2.4 Huck Finn Park

3.2.5 % Baseball Fields

3.24 Vest Park Elementary

3.2.7 Forested Area West of Town

3.2.8 Other Areas

SOIL SAMPLE RESULTS FOR PLAY AREAS

3.3.1 Areas Requiring an Evaluation of Remedial Alternatives

3.3.2 Areas Requiring Samplin g

Page

1-1

1-1

1-2

1-2

1-2

1-2

1-2

1-3

1-3

1-4

1-4

2-1

2-1

3-1

3-1

3-2

3-2

3-2

3-3

3-3

3-3

3-3

3-4

3-4

3-4

3-5

3-5

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TABLE OF CONTENTS (Continued)

Section Page

4 .0 SAMPLING AND ANALYSIS PLAN 4-1

4.1 INTRODUCTION 4-1

4.2 FIELD SAMPLING PLAN 4-1

4.2.1 Sampling Objectives, Locations, and Frequency 4-2

4.2.2 Field Procedures 4-3

4.2.3 Sample Handling, Documentation, and Analysis 4-3

42.4 Decontamination 4-3

4.2.5 Health and Safety Plan 4-3 ••'" • .'-\, 4.3 QUALITY ASSURANCE PROJECT PLAN 4-4

4.3.1 Project Organization

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 4-4

4.3.2 Quality Assurance Objectives X 4-4

4.3.3 Site Selection andjSamplin g Procedures 4-5

4.3.4 Analytical Prbcediiifes-and^Calibration 4-5

4.3.5 Data Reduction, Validation and Reporting 4-5

4.3.6 Quality Assurance and Quality Control Checks (QA/QC) 4-6

4.3.7 Performance and Systems Audits 4-7

4.3.8 Calculation of Data Quality Indicators 4-8

43.9 Corrective Actipn Procedures 4-8

4.3.10 Quality Control Reports 4-9

4.3.11 JData Base Management 4-9

5.0 RESPONSE ACTIVITIES 5-1

5.1 f-RIORTnZATION 5-1

5 .2 IDENTIFICATION AND EVALUATION OF REMEDIAL ACTIONS 5-1

5.3 DEVELOPMENT AND IMPLEMENTATION OF EE/CA 5-3 •-., x ..• -

6.0 SCHEDULE 6-1

7.0 REFERENCES 7-1

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TABLE OF CONTENTS (Concluded)

LIST OF TABLES

TABLE 1-1 SUMMARY OF STATEMENTS USED IN THE DEVELOPMENT OF DQOs FOR PLAY AREAS TABLE 3-1 NAMES AND ADDRESSES OF SITES OBSERVED DURING FIELD RECONNAISSANC E TABLE 3-2 SUMMARY OF INFORMATION CblXECTED DURING FIELD RECONNAISSANCE * TABLE 3-3 ANALYTICAL RESULTS FOR LEAD IN SOIL FROM PREVIOUS INVESTIGATIONS TABLE 4-1 CHEMICAL ANALYTICAL METHODS FOR ANALYSES OF SOIL SAMPLES TABLE 4-2 SAMPLE CONTAINERS, PRESERVATIVES, AND HOLDING TIMES TABLE 4-3 SAMPLE IDENTIFICATION KEY TABLE 4-4 PRECISION AND ACCURACY GOALS FOR CHEMICAL ANALYTICAL DA^TA ^-^

LIST OF FIGURES w

FIGUR E 1-1 PARKS AND PLAYGROUNDS EE/CA FLOW CHART FIGUR E 1-2 EXAMPLE ACCESS FORM FIGURE 2-1 EXAMPLE OF,SURVEY FORM FIGUR E 3-1 SITE MAP AND PLAY AREA LOCATIONS FIGURE 3-2 LICENSED DAY CATRE PROVIDERS IN LAKE COUNTY FIGUR E 4-1 DIAGRAM OF SITE SAMPLING PROTOCOL FIGURE 6-1 -PARKS AND PLAYGROUNDS EE/CA SCHEDULE

/ ,.:'' ' '" '"- ' '•••-•. LIST OF APPENDIXES

APPENDIX A COMPLETED PARKS AND PLAYGROUND SURVEY FORMS APPENDIX B STANDARD OPERATING PROCEDURES APPENDIX B.1 STANDARD OPERATING PROCEDURE NO. 1 APPENDIX B.2 STANDARD OPERATING PROCEDURE NO. 10

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1.0

INTRODUCTION

Thi s document presents the Engineering Evaluation and Cost Analysis Study (EE/CA) Work Plan for parks and playgrounds located in residential areas of the California Gulch

Site, Leadville, Colorado. This document also presents the results of the field

reconnaissance designed to identif y areas where children play in Leadville. Thi s work

plan was prepared followin g the guidance presented in ^the Draft Engineering

Evaluation/Cost Analysis Guidance for Non-Time-Critical Removal Actions (EPA

1988a). The purpose of this work plan is to present the scope of the EE/CA and the

field and laboratory procedures for collecting data and the evaluation of remedial

alternatives, if necessary, for areas defined as parks and playgrounds.

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1 .1 DEFINITION AND OBJECTIVES OF PARKS AND PLAYGROUND S

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Parks and playgrounds are defined iiiTlhe Work; Area Management Plan (WAMP)

(Asarco 1994a) as any public or private land or vacant lot which is used by children as

a play area. These areas arejreferred to herein as parks and playgrounds or play areas. T he objectives of the parks'an d playgrounds work plan are:

 *"'*'"""-> . ..: .^.

 / ""'• • identify areas Xvhere children play,

• identif y play areas within residential Leadville where the lead content of

the surface and near surface soils (0-6") exceeds 3,500 parts per million

(ppm), and

• provide a sampling and analysis plan and a quality assurance plan to guide

potential future field investigations.

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EPA has identified a soil lead interim response level of 3,500 ppm in the WAMP. Play

areas with soils exceeding this concentration will be identified and response activities

evaluated. Parks and playground soils with lead contents of 3,500 ppm or less may be

left in place until their final disposition is resolved under the Record of Decision (ROD)

for the Site. A flow chart of the Parks and Playgrounds decision process is shown in

Figure 1-1.

22909N-22327/R47.1 08-05-94(5: JJpm)/RPT/33 1-1
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12 PREVIOUS INVESTIGATIONS

Several soil investigations have been conducted in and around the California Gulch Site. A detailed description of studies conducted prior to 1991 is contained in the Remedial

Investigations Scoping Document (Res-Asarco 1991). Previous investigations specifically

relevant to the lead content in soils in areas defined as parks and playgrounds are

described below. Analytical results from the studies are discussed in Section 3.3.

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1.2.1 Camp Dresser & McKee (COM) Soil Investigation 1991-92 (GDM 1993)

Soi l samples were collected based on a grid point pattern inside and outside of the

California Gulch Study Area. A total of 5,600 samples was collected and analyzed by X RF with 25% Contract Laboratory Program (CLP) confirmation analysis. Samples

were analyzed for lead and 11 other metals.

1.2.2 Walsh 1987 Soil Samplin g (Walsh 19SS)

".- . ':"-•-.„ '""•-•'".,,„,„. , S '" • / /~"^-~.-' Soil samples were collected in Leadville and Stringtown. A total of 559 samples was

collected. Soi l samples were analyzed for arsenic, cadmium, lead, and zinc.

1.2.3 Weston Day Care Soil Samplin g 1990 (Unpublished)

Samples of dust and soil were collected from eight day care centers in Leadville and one

day care center nfStfingtown . Approximately 60 samples were collected. Samples were

analyzed for EPA Target Analyte List (TAL) metals.

1J DATA QUALITY OBJECTIVES AND DATA NEEDS

Data quality objectives {DQOs) are defined as statements which identif y the objectives

of the work and specify the quality, quantity, and analytical level of the data required to

make decisions relative to these objectives. DQOs for play areas that require sampling

have been established to ensure that the data collected are of sufficien t quantity and

quality for the intended uses. Data will be used for the following:

22909N-22327/R47.1 0«-05-94(5:5Spm)/RPT/33 1-2
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• Site Characterization

• Evaluation and Selection of Remedial/Removal Alternatives, if necessary

• Sitewide Human Health Risk Assessment

Once the remedial alternative is selected, the data will also be used for remedial design

and monitoring during remedial/removal action. Additional information may, however,

be required for remedial design and for the implementation of the remedial action

selected. Data needs and uses of the data to be cpllectedhfpr this work plan are

• " " -' " ' % . ~° * summarized in Table 1-1.

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The data to be collected for this work plan will be of EPA Analytical Level II and/or

III. Sample analysis will be performed by fixed or portable X-Ray Florescence (XRF)

methods. Chemical analyses for confirmation samples and samples collected for risk

assessment purposes will be performed by Test Methods for Evaluating Solid Waste, Physical/Chemical Methods (SW-846, Third Edition and.Final Update I, EPA 1993a).

1.4 SITE ACCESS PERMITS ^ ^ ^

In order to conduct environmental testing,at specific sites, property owners must be

identified and agree to the activities. An example access form to be signed by property

owners is shown in Figure 1-2. Thi s form briefly discusses the parks and playgrounds

program and offers split testing samples to the property owners.

1.5 CULTURAL RESOURCES

The Leadville area has been classified as a National Historic Landmark. Therefore the

identification and evaluation of the potential effect s of remediation of historic properties

must be conducted for 1he EE/CA.

Consideration of Cultural Resources for all CERCLA activities at California Gulch is

required by the National Historic Preservation Act. The two primary documents that

will be used to implement the requirements of the National Historic Preservation Act

at the Site are: 1) the Programmatic Agreement between EPA, the State Historic

Preservation Officer (SHPO), and the Advisory Council; and, 2) the Cultural and

22909N-22327/R47.1 08-05-94(3:55pm)/RPT/33 1-3
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Historic Resources Identificatio n and Evaluation (ID&E) Plan prepared by Asarco

(1994b).

The Programmatic Agreement (PA) requires that remedial actions, if necessary, be

conducted in accordance with certain stipulations in order for EPA to satisfy Section 106

of the Historic Preservation Act. The stipulations provide for: an identification and

evaluation process for assessing effect s on and managing historic properties; development

of a plan for management of historic properties; discover^ of historic properties during

remedial actions; involvement of interested persons (i,e., public); adherence to standards

and guidance; and professional qualifications for this work.

T he ID&E Plan has been developed by Foothill s Engineering for Asarco. All parties

conducting identification and evaluations of historic properties will be required to follow

the ID&E Plan for all work and other requirements as necessary. "All work" includes

additional sampling, or other investigative or remedial planning activities as well as

remediation activities. All parties shan^adhere to the requirements and procedures in

t he ID&E Plan when conducting activities atjhe Site. In addition, all remediation

activities shall follow the EPA approved Draft Guidelines for Conducting Minimal

Disturbance Actions.

1 .6 HEALTH AND SAFETY PLAN

A ll activities will be conducted under a health and safety plan which complies with

29CF R 1910.120. —

1.7 WORK PLAN ORGANIZATION

Thi s work plan for the EE/CA of parks and playgrounds is intended to guide the

characterization of .parks and playgrounds including field activities and laboratory

analyses. Data needed to develop and select remedial alternatives for those areas that

contain soil with greater than 3,500 ppm lead will be collected during this investigation.

Section 1.0 presents the overall objectives and background information for the program. The methodology of the field reconnaissance conducted for this work plan is described

22909N-22327/R47.1 08-05-94(5:55pm)/RPT/33 1-4
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in Section 2.0. The results of the field reconnaissance and site prioritization are

presented in Section 3.0. The Samplin g and Analysis Plan applicable to this investigation

is provided in Section 4.0. Response activities are discussed in Section 5.0. The

schedule for completion of this work is presented in Section 6.0. References are

provided in Section 7.0.

Copies of survey forms completed during the field reconnaissance are included in

Appendix A. Standard Operating Procedures specific to this EE/CA are included in

Appendix B.

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TABLE 1-1

SUMMARY OF STATEMENTS USED IN THE DEVELOPMENT OF DQOs FOR PLAY AREAS

_____Data Use_________________Data Need____________

Define lead content - Analytical results of surficial soil at play areas for

total lead

, '» * •,, "'V Determine Remedial - Analytical results of routine fertility tests Alternatives

Risk Assessment___ Analytical results of risk assessment metals2____

1

 Includes: pH, electrical conductivity, particle size distribution, nitrates, phosphorus,

potassium, iron, lime and texture estimates. 2

 Includes: antimony, arsenic, barium, beryllium, boron, cadmium, chromium, copper,

lead, manganese, mercury, nickel, silver, thallium and zinc.

22909N-22327/R47T.M 06-09-94(10:38«n)/RPT/33 Sheet 1 Of 1
Woodward-Clyde Consultants «

PARKS AND PLAYGROUND S IN T H E RESIDENTIA L AREA

,DO DATA "EXIS T F OR THE AREA FROM PREVIOU S INVESTIGATION S

SAMPL E AREA PRIORITIZ E AREAS TO BE SAMPLED

DOES^SOI L

•HAVE A LEAD- CONCENTRATION

> 3500

IDENTIF Y AN D EVALUAT E REMEDIA L REMOVAL ALTERNATIVES

PLAY AREA ON HOL D UNTIL L

COMPLETETION OF ROD (INCLUDIN G N O ACTION ALTERNATIVE )

PRIORITIZE AREA TO BE REMEDIATED

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J ob No. : 22909N

Prepared by : A.L.M.

Date : 7-11-94

PARK S AN D PLAYGROUND S

EE/CA FLOW CHAR T

FIG . 1-1
FIGURE 1-2 ACCESS AGREEMENT FORM

California Gulch Superfun d Site

Property Address: Owner Name:

Mailing Address: Phone Number:

ASARCO, Inc., and their contractors will be conducting various field activities in the

residential portions of Leadville and Stringtown as part of the California Gulch Superfund Site Remedial Investigation. These activities could include: soils sampling

and metals mapping, resident survey (demographics), residential dust sampling, waste

rock sampling and water sampling.

We seek your consent to access your property in order to conduct the above mentioned

activities and collect appropriate samples. The specific date that we will be at your

property has not yet been determined. However, we will call you in advance before

visiting your property to arrange for an appropriate time. If you wish, results of any

sampling on your property will be mailed to you as soon as they are available. At your

request, split samples of any materials taken from your property will be provided to you. If you are willing to grant access, please jcomplete,, all information below, sign on the

signature line, and date. A copy of this letter has-been provided for your records.

Should you have any questions concerning the activities, you may contact Glenn

Anderson, Asarco, Inc. at 1^800-803-1215 or Amy Morrison at the Asarco Information

Office in Leadville at 130 West 9th, phone (719) 486-3538.

Thank you for your cooperation in this matter.

I hereby grant access to the% property described above to Asarco, and/or their

contractor(s) for the activities scheduled to begin in summer, 1994. I understand that

sample results will only be available to specific agencies or used for future remediation.

I would like a copy of the results of sampling on my property: YES/NO

(please circle one)

I would like to obtain a split of samples taken on my property: YES/NO

(please circle one)

SIGNATURE (Owner or Agent) Date

22909N-22327/ACCAOR.FM Og-09-94(3:27pm)/RPT/33
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2.0

FIELD RECONNAISSANC E

This section discusses the field reconnaissance of play areas in Leadville that was

* ~ conducted for this work plan. The reconnaissance was performed June 27,1994, through

June 29, 1994.

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2.1 METHODOLOGY

\ •••. X .• +* ; During the three-day period of the reconnaissance, children were observed at several

' \j play areas in Leadville. A survey form was prepared to assist in gathering important

information regarding play areas. A copy of the survey form is shown in Figure 2-1. T he survey form was used for each identified site'.,to document site use. Information

1 . \. ' S including site location, size, grass cover, children's-ages , supervision, frequency of use,

; amount of time spent per visit, and hahdwasning availability was compiled. Photographs

< '•• . *TM--TMv, '''*•*"-!„ *•*

 of each site were taken for additional documentation.

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^ Each site was visited at least four times ,a day although most were visited 12 - 15 times

over the three day period to observe activities occurring during differen t hours of the

i day. In this manner, results for the .survey were obtained. Follow-up visits were

conducted until at least one visitor was interviewed for the survey. Seven sites were not

observed to have children playing at them at all during the three-day period. These sites

w

 were visited most often in an effort to fin d some evidence of use. Many of these areas

were cited on other area questionnaires as being other areas where children play.

w

 Copies of completed forms can be found in Appendix A.

22909N-22327/R47.2 08-05-94(5:56pm)/RPT/33 2-1
i Woodward-Clyde Consultants •

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit: ___

Weather: __________

Location (address & on map):

School Alley . Nursery Other

Day Care Center

if yes, what ___

Park Playground

Size:

Site Features (i.e., rocky, hilly, bike path):

Grass Cover/Trees/Bare Areas (as a percentage of total area):

Activities (i.e., swings or ball park): _______'''*.. ''""•-_____

Leadville Resident: Yes - No __

Other Areas Where Their Children Play

Supervision: _______• ' ______

Frequency of Use (i.e., visits per month-per season).

Amount of Time Spent per visit: __________

Age & Number of Children: under six

twelve to sixteen

six-twelve

Number of Pets:

Handwashing facilities available: Yes

Other Observations:

No

J ob No. : 22909N

Prepared by: R.L.W. Dote: 7/14/9 4

EXAMPL E OF SURVEY FORM

FIG . 2- 1
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3.0

PARKS AND PLAYGROUNDS

This section discusses specific information regarding play areas which were identified

during the field reconnaissance. This section also discusses the results of the review of

soils data from previous investigations and identifies areas for sampling.

3 .1 GENERAL SITE DESCRIPTION

Seventeen play areas were identified during the field reconnaissance. These play areas

and twelve other areas identified and sampled during the COM 1991-92 soil investigation

are labeled numerically on Figure 3-1. Table 3- \ lists the names and addresses of the

play areas observed during the field reconnaissance and the approximate size and map

designation number. Table 3-2 summarizes additional information regarding each play

area visited during the field reconnaissance.

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'"-"^i, Miners Park Apartments play area, High Country Apartments play area, Kiddie Korner, The Center, and Huck Finn Park, were used most often as play areas for young children. Other areas that were popular were the bleacher areas of the baseball fields on 4th

Street in the Recreation Area; on 12th Street between Harrison and Mt. Elbert Drive,

and on the corner of 15th and Harrison. All of these fields hosted baseball and softbal l

leagues for children up to 14 years old. Many young children were observed playing in

outlying areas of the ball park during the games. Games were held on these fields on

most week nights.

Another area that was commonly used was the large area west of town bordered by Turquoise Lake Road, Evergreen Drive, Mountain View Drive and a North-South line

at approximately Co.. Road 9 and Prospect Drive. This area is shown on Figure 3-1 and

is identified as site No. 2. Thi s area is wooded with many dirt roads. These dirt roads

are heavily used by children and families riding their dirt/mountain bikes.

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Children were never observed playing at West Park Elementary School. However, many

children cited the area as a place they frequent regularly. West Park Elementary was

not holding classes of the time field reconnaissance.

Areas that were not frequented regularly included: Lake County Intermediate School,

the park behind Westpark Elementary, Stringtown Park, Lake County High School field,

the baseball field on Leiter Street at the end of 5th Street, the basketball and tennis

courts, and Coors field.

3 .2 IDENTIFIED PLAY AREAS

The subsections below describe the play areas that were identified and observed during

the field reconnaissance. Numerical designations associated with Figure 3-1 follow

subsection titles. Information obtained during the reconnaissance and documented on

the survey form has been summarized and is listed in Tables 3-1 and 3-2.

3.2.1 Miners Park Apartments and High Country Apartments Play Areas (#3 and 4)

Children under six were the most common age group found at these play areas. The

children could play outside yet remain just steps from their front doors. Both areas had

playground equipment. At Miners Park, children primarily played on the dirt paths that

ran between the apartment buildings. -Both areas were frequented daily for long periods

of time.

3.2.2 Kiddie Korner(#5)

Kiddie Korner is located on the corner of 9th and Poplar on a busy intersection. The

playground is used as much by tourists and out-of-towners as by Leadville residents. This may be due to the fact that this park is highly visible, easy to find, and offers a

variety of playground equipment. Thi s play area was used more than any other.

Children and visitors were observed during every visit. Many children were very young

(usually under three years old) and were brought by parents or older children.

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3.2.3 The Center (#13)

The Center is the only preschool/day care/nursery in Leadville not run out of a private

home. Children enrolled at The Center spend two hours per day in the play yard. In

the summer there are approximately 70 children enrolled, with approximately 35 under

6 years old and approximately 35 between 6 and 13 years old. In the winter, the

enrollment approximately doubles and throughout the year about 25 babies are cared

for each day. At all times the children at this facility are under teacher supervision.

3.2.4 Buck Finn Park (#14)

Huck Finn Park is located in the recreation area in Leadville. This park is visited daily

by many of the same children that use the facilities at The Center and at Kiddie Korner. This park is known mostly to just Leadville residents.

32.5 Baseball Fields (#6, 8 and 16) _

There are three baseball fields in the Leadville area that were documented as being used

by children. All three are used daily for baseball practice and baseball games. Most of

the participants are over the^ge of 6 years, however, many have younger siblings. These

younger children were observed to be playing on, around and under the bleacher area

during games and practices. Practices are held two to three times per week and teams

have two to three games per week.

3.2.6 West Park Elementary (#7)

West Park Elementary was not in session when the field reconnaissance was conducted

and no children were observed to be playing in the area over the three day period. This

area was, however, cited numerous times by children playing in other areas as a place

that they commonly go.

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3.2.7 Forested Area West of Town (#2)

The forested area west of town contains many dirt roads and off-road bike trails. These

network throughout an approximately 1/2 square mile area. Many children ranging from

age 6 and up were observed to ride bikes alone in this area. Many families also come

here with younger children. People were observed here on a daily basis. It seemed

likely that routes through the trees were used as a shortcut to many homes in the

vicinity.

3.2.8 Other Areas (#1, 7, 10, 11, 15 and 17)

All other areas in Leadville were observed to have very little use to no use at all. Specifically , these sites included Lake County Intermediate School, the park behind

Westpark Elementary, Stringtown Park, Lake County High School field, the baseball

field on Leiter Street at the end of 5th Street, the basketball and tennis courts, and

Coors field. ^ ,^.

Note that all daycare facilities are required by law to register with the Department of Social Services. The Department has been contacted to ensure that all day care facilities

have been identified and a list of providers is shown in Figure 3-2. This list will be

updated and the facilities evaluated prior to the start-up of the sampling program.

3 .3 SOIL SAMPLE RESULTS FOR PLAY AREAS

As described in Section 1.2, three soil investigations have been identified to have

relevant soils information applicable to this work plan. Analytical results for soil lead

from each of these investigations has been compiled for the play areas identified above.

This information is listed in Table 3-3.

Based upon the Consent Decree, areas with composite (0-6") soil lead concentrations

greater than 3,500 ppm require an evaluation of remedial alternatives. Actions regarding

areas with soil lead concentrations of 3,500 ppm or less may also be evaluated but in

general will be decided followin g the ROD for the Site.

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3.3.1 Areas Requiring an Evaluation of Remedial Alternatives

There are no sites within Asarco's area of responsibility that need to be evaluated for

remedial action at this time. Calculated composite (0-6") soil lead concentrations are

all below 3,500 ppm.

: : 3.3.2 Areas Requiring Samplin g

:

 ;' Based on a review of the available information collected from previous soil investigations

and due to the lack of existing data, the following areas (see Figure 3-1) require further

evaluation:

• Forested Area W. of Town (#2),

• High Country Apartments (#4),

• Baseball field off Harrison Street (#6),

• Main Leiter basketball and tennis courts (#15).

Although data do not exist specifically for the basketball and tennis courts in the

southern part of the recreation area, soil concentrations from three areas very nearby

(the baseball field (12), the Center (13) and Buck Finn Park (14)) are all below 1200

ppm lead. In addition, the basketball and tennis courts (area 15) are paved. Based on

this information, sampling area 15 is not proposed.

Based on the location of the forested area west of town (#2) and the fact that the only

activity observed to Occur there was bike riding, soil sampling of this area is not

proposed.

Both the baseball field off of Harrison Street (#6) and High Country Apartments (#4)

will require sampling. From the field reconnaissance, the play area by the apartments

is used daily by children under six years old. The baseball field is also used daily

primarily by children between the ages of 6-12 years old.

22909N-22327/R47.3 OS-09-94(10:23«m)/RPTO3 3-5
TABLE 3-1

SITES NAMES AND ADDRESSES OF SITES OBSERVED DURING FIELD RECONNAISSANCE

Name Address

M ap Designation Number Approximate Size

Parks and Play Areas

Miners Park Apt. Play Area and Grounds

High Country Apt. Play Area

Kiddie Korner

Playground

Playground

Huck Finn Park

Coors Field

Schools/Nursery/Daycare

Lake County Intermediate School

Westpark Elementary

Lake County High School

T he Center

Mt. Lincoln Dr. E. McWethy Dr. and Mt. Massive Dr.

9th and Poplar

Behind Westpark Elementary near the baseball field

 1 •••" • 7 / On Hwy. 24 in Stringtown /

In Recreation area between W. 6th and W, 4th

Front St. between Letter St./and Maple St.

1000 West 6th St. Between McWethy Dr., James St. and Dexter St.

12th and Pine Between Harrison and Mt. Elbert Dr.

4th and Washington and McWethy

315 West 6th St. On Leiter St. between W. 5th and W. 6th St.

3

4

5

9

10*

14

17

I

T

I I

13

Two Areas; each 50 yds. x 15 yds.

30 yds. x 10 yds.

75 ft. x 75 ft.

30 yds. x 50 yds.

25 yds. x 25 yds.

20 yds. x 20 yds.

20 yds. x 40 yds.

40 yds. x 50 yds.

Two Areas: 45 yds. x 35 yds.,

20 yds. x 10 yds.

120 yds. x 50 yds.

70 yds. x 30 yds.

22909N-22327/R47T.3-1 OS-09-94(10:38*m)/RPT/33 Sheet 1 of 2
TABLE 3-1

(Concluded)

Name .Address

M ap Designation Number Approximate Size

Sports Field

Baseball Field

Baseball Field

Main Leiter Baseball Field

Other Leiter Baseball Field

Basketball and tennis courts

Other Areas

Dirt Bike Trails

15th and Harfison

Across the street from Westpark Elementary •• t On Leiter St. at the end of the W. 5th St.

On 4th St. in the Rec Area

-• | -" f In Rec Area between W* 6th St. arid W. 4th St.

;? { •:

Forested Area West of Town /

6

8

12

16

15

100 yds. x 75 yds.

50 yds. x 50 yds.

80 yds. x 80 yds.

40 yds. x 40 yds.

2 full basketball and 5 tennis courts

1/2 sq. mi.

Actual site is south of map boundary.

22909N-22327/R47T.3-1 OS-09.94(10:3Um)/RPT/33 Sheet 2 of 2
TABLE 3-2

SUMMARY OF INFORMATION COLLECTED DURING FIELD RECONNAISSANCE

Name (map location #)

Parks and Play Areas

Miners Park Apt. Area and Grounds (3)

High Country Apt. Play Area2 (4)

Kiddie Korner3 (5)

Playground (9)

Playground (10)

Huck Finn Park4 (14)

Coors Field (17)

Schools/Nursery/Daycare

Lake County Intermediate School5 (1)

Westpark Elementary (7)

Lake County High School6 (11)

T he Center7 (13)

Sports Fields

Baseball Field8 (6)

Baseball Field" (8)

1 Activities/Features

j 1

Dome shaped donkey bars, numerous bike trails

Swings, monkey bars, beter-totter

Swings, bars, slide, merry-go-round, sandbox

j * . . Slide, swings, bars, basketball hoop, merry-goround ; ; /

Swings, monkey bars, teeter-totter, slide

Swings, bars, slide, merry-go-round

Picnic table and shelter ; / 1 I .- Swings, bars, slide, tires

Swings, bars, slide, tetherball

Football field

Swings, monkey bars, teeter-totter, slide, tunnels,

hut

2 baseball fields (one large and one small)

Baseball field

Percent Grass Cover

40%

0%

0%

50%

85%

40%

100%

15%

0%

90%

50%

25%

50%

Freq.

of Use

Daily Daily

2/wk

Daily

None

Daily None

None

None

None

Daily

Daily Daily

Avg. Num.

5

10

4

2

-

6

--

--

-

:..

70

20

20

Avg. Age

5-6

4-5

3-6

6-7

~

5-7

—

~

-

~

5-6

6-12

6-12

Handwashing Facilities

In Apartment

In Apartment

No

No

No

Y es

No

No

No

No

In School

No

No

22909N-22327/R47T.3-2 OS-09-94(10:41im)RlT/33 Sheet 1 of 2
Name (map location #)

Main Leiter Baseball Field (12)

Other Leiter Baseball Field9 (16)

Basketball and tennis courts

10

 (15)

Other Areas

Dirt Bike Trails" (2)

TABLE 3-2

(Concluded)

Activities/Features

1 Baseball field

Baseball field

Basketball, tennis and street hockey

- - - ' " 5

/ Bilce riding

Percent Grass Cover

0%

60%

0% (paved)

10-20%

Freq.

of Use

None

Daily Daily

Daily

Avg. Num.

--

20

8

10

Avg. A ge

--

6-12

Over 20

3-12

Handwashing Facilities

No

No

No

No

1

 Children play in between apartments just as much as in designated play areas. There are many dirt paths through the apartment grounds that are frequently played on. 2

 Only children living in the apartment complex are allowed to play here. / / 3

 Children were observed playing here constandy. Most children were under six years old and with parents or older children. Was frequently used by tourists. Park is

highly visible. / 4

 There are locked bathrooms. , 5

 Play area was split into two sections; one was further up the hill from the other./ 6

7

 There was a high fence around the area. / / Twice as many children are here during the winter months. 8

 Little league is played here nightly and it is regularly used as a practice field. Only the smaller field was observed to be used. Little league is played here nightly and it is regularly used as a practice field. This area is frequently used by tourists and is covered by asphalt. Many children were seen riding bikes through this area. Younger children were with adults.

10

229WN-22327/R47T.3-2 OS-09-94(10:41«m)RPT/33 Sheet 2 of 2
TABLE 3-3

ANALYTICAL RESULTS FOR LEAD IN SOIL FROM PREVIOUS SOIL INVESTIGATIONS

Site Name Lake County Intermed. School

Forested Area W. of Town Miners Park Apartments High Country Apartments Kiddie Korner Baseball Field (15th Harrison) WestparkElementary

Baseball field (across from W. Park Playground

Stringtown Playground

Lake County High School

Main Leiter Baseball Field T he Center

Huck Finn Park Basketball & Tennis Courts Other Leiter Baseball Field

Coors Field Ice Palace Park

\ Site

; Location

•• Number (Figure 3-1)

- I

2

/ 3;

4? 1

5 i

6 /

7. I

8

9

10*

11

12

13

14

15

16

17

18

COM Walsh Weston Soil Investigation Soil Sampling Day Care

1991-92 (COM 1993) 1987 (Walsh 1988) Sampling 1990

(ppm)1 (ppm) (ppm)

0" - 1"

37

1039

1684

1070

295

593

997

23

144

653

1724

454

1058

1125

367

80

478

1373

2160

1715

461

r-2

M

96

511

2251

1006

, /

219

•281. I78?

/ 4$

/ 319

479

1619

400

*-

894

449

306

419

443

1198

1423

1672

242

2" -6" Duplicates 0

H

- 2" 2" -6" 0"-2" 3" -6"

22 115

 J

303 304

 4

1921

-;

 x / 674

/ 142

114

39

89

187 315 17

49 639

 2

420 1660

 3

442

 4

313 635 150

2355 1480

^Q/\

. fy\J

1595 330 510

344 350

 4

 305 285 684 955

330 310 (D) 214 (D)

357 402 "

265 490

 2

 720 150

885 1943 "

1894

304

623

Z29WN-22327/R47T3-3.XLS 7/KW4(2:M PMVRPT/33 Sheet 1 of 2
TABLE 3-3

(Concluded)

Site Name Vacant Lot NW of US. Rodeo Grounds

Mountian View Dr. Trails

Trails Behind Pizza Hut Rec. AreaW. ofH.S.

Trail SW of H.S. Trail ME of H.S. Field Day Care at 1 16 E. 10th ST. Day Care at 1837 Ridgeview Dr. Day Care at 907 Pine Day Care at 143 W. 6th

Site ] \ Location

/ / iMap .. Number

19

20

21

j

22

23 ;

:" 1

24

25

26

27

28

29

Soil

COM Investigation

1991-92 (COM

0"-P

743

\ 1710

2162

761

2848

555

4044

759

562

661

659

2988

(ppm) P-2"

620

1157

518

102

3091

1050(

699*

523

/454

/ 16*9

512

3174

1993)

2" - 6" Duplicates

122

288 1137

3

28

15

; 2728

/ 937

/ 437 /X

98/ / ' , "--,,.

1042 493 * /27/-",, , X 7 5 5 '"•- /

894

Walsh Soil Sampling

1987 (Walsh 1988)

(ppm)

0" - 2" 2" - 6"

85 0.5

1690 725

1725 2930

1540 19

890 795

790

Weston Day Care Sampling 1990

(ppm)

0"-2" 3"-6"

308

164

209

662

18

209

1

 Parts per million 2

 Sample taken at depth between 0" -1"

3

 Sample taken at depth between 1" - 2"

4

 Sample taken at depth between 2" - 6"

* Actual site is south of map boundary.

JJ9WN-22327/R4TTMXLS 7/20/94(2:50 PMyWTOS Sheet 2 of 2
i Woodward-Clyde Consultants •

J!J

J

J

J

J

• '« v^@ ^ ••&•&&*

* /£>\ ^ft,,* ••v.v-r'Y'ktailS

SITE LOCATION

ACTUAL LOCATION IS SOUTH OF MAP BOUNDARY

J ob No. • 22909N

Prepared by: fU_V , Date • 7/13/84

SITE MAP AND PLAY AREA LOCATIONS

FK3.3-1
P.O. Box 884 Leidville. Colorado 80461

_^

IAKE COUNTY, DEPARTMENTOFSOC1ALSJERVICES

REVISED: FEBRUARY B.-1994

(719)4860772

(719)486.1673

UCEKBED DAV CARE fROVXDERS LAKE COUHXZ

6HARON SWETT

53409

EDION HONK

62582

I /TERNE WATSOH

50836

COHCOWICH

52974

JtJKE FEANZEH

4830S

DIANA MARTINEZ

53374

DICE

55726

MAR Y ROTHROC K ' . 79693

PENNY HARVEY 61276

MARY VAN PELT TAMMY EVERETT

ALEXIS ANDREE

87229

87605

6S633

LYHETTE FRESQOEZ

89091 ——— ~ KOLA JESTER"

88567

•/TOE CENTER

€7484

GERAIiDIHE CHAHEY 91426

1424 KT. HASSIVl l DRIVE

486-1544 ,

! /

617 H 6TH STREEO?

486-1276 !

116 E 10TH STREET UNLISTED . PHONErn II

1837 RIDGEVIEW DRIVE

486-2335 . ^

907 PINE/6TREET f .

486-1554 %x ..-

;:

 ,'*

•340 HT. PRINCETON

486-3195

•143 W 6TH STREET

486-3746,,^ ; '

; ' i"**^«-^,v " *~"""'"^ 'lid o HEMLOC K /2 V

486-0485 '" -- |

"•'-; ' 10820 HWY 24 SOllXH

486-2892 \

601 W 7TH STREE*

4 86-3050 ;

3 33 KT. PRINCETON

486-1468

719 H 6TH STREET^

486-2379 !

1817 LODESTONE '

486-0036 I

W 6TK STREET t $PRDCE

486-3946 !

I

•134 E. 13TH STREET

'486-001 4

PO BOX 180 (HAIL)

6 06 V 8TH (KAIL)

APPLICATION ONLY

o*.

FIGURE 3-2
Woodward-Clyde

4.0

SAMPLING AND ANALYSIS PLAN

j Thi s section describes the overall sampling methodology and presents the Samplin g and

•" Analysis Plan (SAP).

V 4.1 INTRODUCTION

I ,, Each play area identified for sampling will be sampled to measure the total lead content

of the surficial (0-6") soil. An additional sample from 6-12" will be collected and

t <~ archived. If required, this 6-12" sample may be analyzed at a future date. A weighted

average concentration from 0-1", 1-2", and 2-6" will be calculated for each sample

, "' H '••' : - I location. Samples will be analyzed by XRF methods. At least one sample per depth to A — t t

 "'% '*• < 6", per site, will also be submitted for chemical analysis, in accordance with the methods

•j and analytes shown on Table 4-1. "Additional laboratory chemical analyses may be

•"- performed on samples that are reporteoHiy^he 2QRF analyses at concentrations close to

the 3,500 ppm action level. At least one sample from each site will be analyzed for pH,

w

 salt content, particle size distribution and NPK (nitrogen, potassium and phosphate).

If the composite sample (6-6") calculated concentration is above 3500 ppm, the remedial

alternatives will be evaluated as Hiscussed in Section 5.0 of this work plan.

''•-,, . ' /

The SAP is composed^f the followin g parts and described below:

 - • Field Samplin g Plan

• Quality Assurance Project Plan

• Standard Operating Procedures

42 FIELD SAMPLING PLAN

This field sampling plan (FSP) describes the sampling tasks required as part of the

EE/CA for play areas located within the residential areas of the California Gulch Site. The FSP details the sample types, locations and frequency, sample handling and labeling,

~_ - 22909N-22327/R47.4 08-05-94(6:03pm)/RPT/33 4-1
V Woodward-Clyde

planned analyses, documentation and reporting, and quality assurance/quality control

(QA/QC ) requirements.

At this time sampling methodologies for the site are still being evaluated. Samplin g

protocols described below may change and are dependent on the methodology selected.

/ .•-'

42.1 Samplin g Objectives, Locations, and Frequency ,

/ ,

: '"'N, _ '"-v , The objectives of the sampling program are to (1) evaluate whether the lead content in

surface and near surface soils (0-6" composite) exceeds 3,500 ppm, (2) for the laboratory

chemical analytical results, to provide additional data to be suitable for use for risk

assessment purposes, and (3) evaluate the physical/nutritional characteristics of the soil

f ,: / H>

materials to assist in selecting remedial alternatives.

Samples will be collected from each of the identified areas to meet the above objectives.

.j''

1

'TM^. ,

 v % All samples will be analyzed by XRF methods. Selected samples will also be analyzed

in accordance with the methods shownlDifTable4-f-"The complete set of results for all

 • ';- _ _/• -•• ***""•»«,' analytes will be used as part of the risk ".assessment. The lead results will be used as

confirmation data for the XRF analyses, arid a selected sample will also be spiked with

lead to provide a range /of concentrations)which will be used for the calibration

standards. Samples will be stored until the preparation of calibration standards is

complete, and the samples will then *be analyzed for total lead by XRF methods.

'~\ . '"^j . • Samples with a lead concentration reported by the XRF analysis close to the 3,500 ppm

action level wjlllie Inalyzed.for the complete range of analytes shown on Table 4-1. Thi s additional data will also be used as confirmation data for the XRF results and for

risk assessment purposes.

" \.

j

 ' ••<-,. Specific sampling locations will be designated in the field upon site reconnaissance prior

to the start of the investigation. Samples will be collected as described in the Camp Dresser & McKee (COM) 1991 Final Soil Investigation Work Plan and Standard

Operating Procedures (SOPs) contained in Appendix B. Samples will be collected as

dictated by a grid pattern. Grid sizes will be 500 feet2.

22909N-22327/R47.4 08-05-94(6:03pm)/RPT/3J 4-2
Woodward-Clyde

L

422 Field Procedures

Procedures for collecting samples have been developed and are described in CDM's

Final Work Plan (CDM 1991). Figure 4-1 is a diagram of the site sampling protocol. The composited sample will either be analyzed by field-XRF on-site, or collected in a

sample container and analyzed by XRF methods at a laboratory. All samples will be

retained and archived in a sealed, labeled sample container in accordance with the

procedures described in Section 4.2.3. /

4.2.3 Sample Handling, Documentation, and Analysis

The procedures for sample handling, documentation, and analysis are presented in the

followin g SOP (Appendix B) from the Yak tunnel SAP (Res-Asarco 1993):

N. ^' .':'

No. 10 - Sample Handling, Documentation, and Analysis

Required containers, holding times, and "storage are listed in Table 4-2. Chemical

analytical methods and reporting limits for analysis of the soil samples are presented in

Table 4-1. Table 1 in SOP No. 10 (Res-Asarco 1993) has been revised to be applicable

to labeling soil samples and is presented in Table 4-3.

4.2.4 Decontamination - ^

The procedures for decontamination of sampling equipment and personnel are presented

in the followin g SOP (Appendix B) from the Yak Tunnel SAP (Res-Asarco 1993):

No. i -Decontamination

4.2.5 Health and Safety Plan

A ll field activities for this investigation will be conducted under a site health and safety

plan which complies with 29 CFR 1910.120.

22909N-22327/R47.4 08-05-94(6:03pm)/RPT/33 4-3
Woodward-Clyde

^ 4.3 QUALITY ASSURANCE PROJECT PLAN

t ' i The purpose of the Quality Assurance Project Plan is to document the quality assurance

requirements applicable to activities performed as part of the EE/CA. This plan

i describes the requirements of the quality assurance (QA) program for organizing,

** planning, performing, reviewing, and documenting activities which affect the quality of

work related to the EE/CA. It applies to work performed at the California Gulch Site

v- and vicinity, in the office, and laboratory testing.

\ '"" ""•• ""••-, ^ 4.3.1 Project Organization

I The organization, responsibilities, and qualifications of key personnel concerned with

quality assurance for the EE/CA Work Plan are specified in Subsection 2.2 of the

i Quality Assurance Project Plan, Yak Tunnel, Operable Unit, California Gulch Site, w

 Leadville, Colorado (Res-Asarco 1993) (Yak TunnelI OAPP).

«~ 4.32 Quality Assurance Objectives ~ ^ ,,.

/ .;• "'"*"'*'"—<•

W The overall QA objective for this project is to develop and implement procedures for

obtaining and evaluating/data that assure that (1) all measurement data have the

i appropriate degree of precision, and accuracy, for the data uses specified in Section 1.3,

and (2) samples collected are representative of actual field conditions.

T he followin g 'Sections of the QAPP describe the procedures that need to be

^ implemented in order to maintain a consistent quality of the data. This consistency will

*~ be accomplished through the formal standardization and documentation of field

;

 procedures and tasks. In addition, project deliverables will be distributed and reviewed

w in accordance Ayith specified guidelines. All field activities will be planned in advance,

and performed in accordance with procedures outlined in the controlled documents and

u

 plans specified in the SOW. Field activities will be reviewed to ensure consistency with

overall project objectives. Validation protocols and precision and accuracy goals for the

; XRF analyses are currently being developed. Analytical data reported by SW-846

*"" methods will be validated in accordance with the validation guidelines described in

Section 4.3.5. The project precision and accuracy goals are shown in Table 4-4.

~_ _- 22909N-22327/R47.4 08-05-94(6:03pm)/RPT/33 4-4
Woodward-Clyde

4.33 Site Selection and Samplin g Procedures

Section 4.2, Field Sampling Plan, presents a discussion of the Site Selection and

Sampling Procedures. In summary, surface/surficial samples collected from play areas

will be analyzed for total lead. Twenty-five percent of the samples will be analyzed for

risk assessment metals that were listed in Table 4-1.

,-•

4.3.4 Analytical Procedures and Calibration

All samples will be analyzed by XRF for total lead. Selected samples collected will be

analyzed by SW-846 methods and these samples will be spiked at specified

concentrations to allow site-specific calibration data for the XRF analyses. In addition,

 / -'

: -% *

samples analyzed by XRF with a reported concentration close to the 3,500 ppm action

"*-v '"'•< level will be analyzed by SW-846 methods for toe ful l range of analytes shown on s

^ Table 4-1. These samples, together with the samples from the calibration standard

samples, will be used as confirmation sample results for the XRF results. These results

will also be used for risk assessment purposes. The parameters which will be analyzed

and analytical methods are specified in Table 4-1. The calibration procedures and

frequency of calibration for .all laboratory equipment used for sample analysis will be

consistent with the protocols specified in the methods.

/ /• . *_

/ .;• ,-. •«-».--.,.,

43.5 Data Reduction, Validation and Reporting ''•> . "•.. *-, The analytical -data-reported by SW-846 analytical methods will be evaluated for

precision, accuracy/and completeness using specific data validation procedures.

: A description of the analytical quality control criteria to be used in validation of samples

analyzed during this review are outlined below. As the analytical methods do not have

specific data validation guidance procedures, the draft EPA Contract Laboratory Program (CLP) Functional Guidelines for Evaluating Inorganics Analyses (EPA 1988b)

shall be used as general guidance where pertinent to each analytical method.

T he QA/QC acceptance limits for matrix spike/duplicate (MS/D) and Laboratory

Control Sample (LCS) analyses are shown in Table 4-4. The criteria shall be used

22909N-22327/R47.4 08-09-94(11:37un)/RFT/33 4-5
Woodward-Clyde

during the data validation process to evaluate the acceptability of the analytical data. Acceptance criteria for the homogenized field duplicates will follow the criteria from

i Functional Guidelines for laboratory duplicates.

T he validation will follow the guidance from Functional Guidelines for all criteria

v

 contained in the Guidelines pertinent to the analytical method, and data will undergo

* , evaluation of the following with the exception that no transcription error checking or

v

 recalculation of results from raw data will be performed as a part of this review.

^ • Holdin g Times

• Blanks

1

 • Laboratory Control Sample

• Laboratory Duplicate Sample Analysis

• Matrix Spike Sample Analysis"

w

 • Field Duplicate Analysis

• Overall Assessment of Data ^

Where applicable, nutrient analytical data will be reviewed using the same guidelines as

^ described above. Validation protocols for the XRF analyses are currently being

developed. ,-

4.3.6 Quality Assurance and Quality Control Checks (QA/QC)

** The QA/QC protocols for the XRF analyses are currently being developed. QA/QC

i protocols for the nutrient analyses are laboratory-specific, and will be evaluated during

*- the selection of the laboratory.

^ For the SW-S46 analyses, the analytical laboratory shall meet the QA/QC requirements

stipulated for each analytical method. Analysis and reporting of a method blank and ;

 LCS shall be included with each sample data package.

--, - ' 22909N-22327/R47.4 08-09-94(11:37«m)/RPT/33 4-6
Woodward-Clyde

QA/QC samples will be submitted to the analytical laboratory for blind field duplicate

analyses, rinsate blank analyses and for MS/D analyses. One QA/QC sample suite will

be collected at a frequency of one per 20 samples. A brief description for these

QA/QC samples follows:

,'.*'• Field Duplicates

Field duplicates are prepared as part of the field sampling program by homogenizing,

or mixing, a large portion of a sample and placing equally representative samples into

two sets of containers. Comparison of the analytical results for homogenized field

duplicate samples provides a measure of the sampling and analytical precision. Field

duplicates will be submitted to the laboratory as blind samples. Field duplicates will be

collected at a minimum of one per 20 samples or one per day.

*"»,"•>.,,. Rinsate Blanks '

Rinsate blanks are collected by pouring deionized water over the sampling equipment

after it has been decontaminated and prior to use in the field. Rinsate blanks are often

referred to as equipment blanks or as decontamination procedure blanks. They are

collected to check for sample contamination caused by reuse of decontaminated

sampling equipment as well as the sampling process and transportation. One rinsate

. •' ~TM'~ sample will be collected following decontamination of equipment from each area

sampled.

_.__ x ••.,.. Matrix Spike (MSFarid Duplicate (Dl Samples

.•

 /

Matrix spike sample analyses are used to evaluate the effec t of the sample matrix on the

accuracy of the laboratory method. Matrix spikes are field samples spiked with known

quantities of specific compounds and processed through to the entire analytical

procedure and the recovery of the compounds calculated. Results are expressed as

percent recovery of the known amount spiked. Laboratory duplicates are two aliquots

of a single homogeneous sample which are analyzed for the same parameter in order to

determine the precision of the method. Results are expressed as relative percent

difference.

22909N-22327/R47.4 08-09-94(11:37am)/RPT/33 4-7
Woodward-Clyde

A sufficient quantity of material of the specified field sample selected for MS/D analysis

will be collected in the sample container. One sample will be selected for MS/D

analyses per 20 samples.

4.3.7 Performance and Systems Audits

No project-specific performance or systems audits are anticipated during implementation

of the EE/CA Work Plan.

4.3.8 Calculation of Data Quality Indicators

Calculation of accuracy (as percent recovery) and precision (as relative percent

difference between duplicate results) will be in accordance with formula described in

Section 8.4 of the Yak Tunnel QAPP Functional Guidelines.

'"*"•:• ""••;.

The analytical completeness will be calculated by the ratio of total valid analytical data

results (including estimated values) to the total number of analytical results requested

on samples submitted for analysis. The equation for analytical completeness is:

% Analytical cletenes s = ^Vnal Valid Analytical Data

"""""""-*••—-.,.. Analytical Data Obtained

The analytical completeness goal is 90%. If the goal is not met, the Project Manager

in concurrence with EPA and CDH, will decide if the data are sufficien t for its intended

use. If it is judged that the data are inadequate, additional field samples may be

collected and .analyzed to meet project goals.

4.3.9 Corrective Action Procedures

Corrective action procedures may be implemented by the Asarco Project Manager if they

consider any aspect of the program is unacceptable. Corrective action procedures

implemented would follow the procedures described in Section 12.0 of the Yak Tunnel

SAP.

22909N-22327/R47.4 08-09-94(1 l:37«m)/JUT/33 4-8
I Woodward-Clyde

43.10 Quality Control Reports

For this project, no separate reports will be prepared to describe the results of the QA

program described in this QAPP. Data summaries and evaluations of QA/QC data will

be provided as necessary in the controlled documents required by the SOW.

4.3.11 Data Base Management • ""-.,_

 I '""•:: ' : Analytical data collected for this investigation will be input into the project database. The database will be maintained on a microcomputer and structured so that all tasks

associated with electronic data transfer from the analytical laboratory, data entry,

processing, analysis, and reporting can be accomplished in an efficien t and verifiable

. • -

f

 <"'"""'• < manner. Data from the database will be exported as needed to other software packages

for statistical analysis, graphical output, and data tabulations associated with routine data

evaluation and reporting. The file structure will be compatible with the EPA/Roy F. Weston EDMS system. ~ --^,

22909N-22327/R47.4 08-09-94(1 l:37«m)/RIT/33 4-9
Woodward-Clyde

TABLE 4-1

CHEMICAL ANALYTICAL METHODS1 FOR ANALYSES OF SOIL SAMPLES

L

Parameter

Antimony Arsenic

Barium

Beryllium

Boron

Cadmium

Chromium

Copper

Lead

Manganese

Mercury Nickel

Silver

Thallium

Zinc

Method2

6010

7060

6010

6010

6010

- 6010

6010

,—^,_ 6010 "X..'V

• \ •:-^^742T^^ \ \/6tiiiT^' /-

,_.,,. \ '7471

6010

.:• _ •-——-— , 6010

:

"'-,,,""'X / , •'" """""" 7841

.„ __ . "'--,.

 : '""-s, 6010

Reporting Limit**

mg/kg

6.0

0.5

1.0

0.2

10.0

0.25

1.0

2.0

0.5

1.0

0.1

4.0

1.0

0.5

2.0

**

XRF detection limit ranges will be established during calibration procedures.

E PA Test Methods for Evaluating Solid Waste, Physical/Chemical Methods

(SW-846), Third Edition and Final Update I, 1993a.

Reporting limit dependent on analytical method and on sample matrix.

22909N-22327/R47T.4-1 08-09-94(10:4 l«m)/RPT/33 Sheet 1 of 1
Woodward-Clyde

TABLE 4-2

SAMPLE CONTAINERS , PRESERVATIVES , AND HOLDING TIMES

Analysis

Metals4

Fertility5

1

 Bottle 2

 Water

* Unl/K r

Media Container1

Water P,G

Soil

Soil B

Preservation2

HNO3 to pH<2 4^C

air dried H

Holding Time3

6 months

None

code: P= polyethylene, G= glass, B= large ziploc bag.

samples include equipment rinsate samples.

for mercury, which has a 28-day holding time.,/ Metals include: antimony, arsenic, barium, beryllium, boron, cadmium, chromium, copper, lead, manganese, mercury, nickel, silver, thallium, and zinc. Fertility analysis includes; pH, electrical conductivity, particle size distribution, nitrates, phosphorus,

potassium, iron, lime and texture estimates. • %

22909N-22327/R47T.4-2 OS-09-94(10:24«m)/RPT/33 Sheet 1 Of 1
Woodward-Clyde

TABLE 4-3

SOIL SAMPL E IDENTIFICATION KEY

Example Sample ID: A-337G-01-910801

A = Sampling Company

(here, Asarco)

337 = Play area location /

G = Sample Collection Method < (here, grab)

01 = Type of Sample (here, primary sample)

910801 = Date of Sample Collection / (Year Month Day)

First field will be: "A" for Asarco^or "W'^for Woodward-Clyde Consultants

:-• Vvol^ ^**>"*'-'*v,,,., T he second field consists of two components:

The first component is a three-character reference number for the specific play area,

according to Figure 3-1.

The second component is a one-letter designation for the sample collection method, and

will be: • :;, / .;•*'-••"•—,^/

"G" for grab, or X "C" for,£0mposite , ' , (

 ^p*"TM1"

1

*" =•"-*.., ''. . ' ;

i t Third field will be:

"01" for primary sample

"02" for duplicate sample

"03" for field blank

"04" for equipment rinsate

"MS" for matrix spike and duplicate

Fourth field will be: Year Month Day

(Date Sample Collected)

22909N-22327/R47T.4-3 0&-09-94(10:41am)/RPT/33 Sheet 1 flf 1
Woodward-Clyde

TABLE 4-3

SOIL SAMPL E IDENTIFICATION KEY

Example Sample ID: A-337G-01-910801

A = Sampling Company

(here, Asarco)

337 = Play area location

r ^> : '- , G = Sample Collection Method

 %

(here, grab)

01 = Type of Sample (here, primary sample)

910801 = Date of Sample Collection

(Year Month Day)

 s

First field will be: "A" for Asarco or»:W" for Woodward-Clyde Consultants

\ ••;r--^> '""-•-"-,, The second field consists of two components: --^,

The first component is a three-character reference number for the specific play area,

according to Figure 3-1.

The second component is a one-letter designation for the sample collection method, and

will be:

 :

 ^ -" /•-•——„„:„„„ „/

 rv "G" for grab, or - "C1

 for,composite ,

Third field will be:

"01" for^primary sample

"02" for, duplicate sample

"03" for field blank

"04" for equipment rinsate

"MS" for matrix spike and duplicate

Fourth field will be: Year Month Day

(Date Sample Collected)

22909N-22327/R47T.4-3 07-18-94(9:22«m)/RPT/33 Sheet 1 Of 1
Woodward-Clyde

TABLE 4-4

PRECISION AND ACCURACY GOALS FOR CHEMICAL ANALYTICAL DATA1

Parameter

Antimony Arsenic

Barium

Beryllium

Boron

Cadmium

Chromium

Copper

Lead

Manganese

Mercury Nickel

Silver , Thallium -

Zinc

 Xi

 :\ / /"""'""

Precision (RPD)2

±35

±35

±35

±35

±35/

/±3*

/ i35/ X>

&* ^,.

±35

X

' - S

X

,

^^&s..^^':

"C\ /±i35^:f

\/ ••••±35

±35

..^ _ ... "±35

•"——*• ±35

Accuracy (%)3

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

50-150

1

 Limits apply -to MS/p and LCS analyses. 2

 Relative Percent Difference

3 PAi*/*An+xTO As*s\vrAi*ir Analytical laboratory to provide method specific QA/QC acceptance

to commencing analytical program.

prior

22909N-22327/R47T.4-4 08-09-94(10:4 l«m)/RPT/33 Sheet 1 of 1
, Woodward-Clyde Consultants •

MINIMUM WORK AREA

FEET SCALD 1/r«1'-C f

0 1/2

METERS

SOURCE: COM 1991

J ob No. '• 22909N

Prepared by:

Date:

DIAGRAM OF SUE SAMPLING PROTOCOL

FIG. 4-1
Woodward-Clyde

5.0

RESPONSE ACTIVITIES

Play areas identified as having composite soil lead concentrations greater than 3,500 ppm

will be evaluated for response activities. This section discusses how these areas will be

prioritized for response actions, the identification fof response actions, and the

development and implementation of this EE/CA.

£ f' "* * ~ - According to the evaluation of play areas conducted under this work plan, no areas have

been identified at this time to have composite soil lead concentrations above 3,500 ppm.

5.1 PRIORITIZATION

"N Areas identified for response actions will be prioritized according to the following:

• frequency and quantity of use ,_ ^

 : .-'- . '• "''""*"»**,.:'' • proximity to primary sources

• proximity to residential areas

'"-, , '- •

• suitability of .ground cover

• likelihood of recontamination by erosion or runoff

5 .2 IDENTIFICATION AlVD EVALUATION OF REMOVAL/REMEDIAL ACTIONS

Remedial alternatives for residential soils in the California Gulch Site have been

developed and screened in the Final Screening Feasibility Study for Remediation

Alternatives at the California Gulch NPL Site, Leadville, Colorado (EPA 1993b). The

followin g alternatives were retained for residential soils:

• Alternative 1 - No Action

• Alternative 2 - Institutional Controls

22909N-22327/R47.5 OS-09-94(10:28am)/RPT/33 5-1
Woodward-Clyde

L

Alternative 3 - Containment (Surface Water Control)/Institutional

Controls

Surface Water Control Options:

Diversion Ditches

Channelization

Institutional Controls

Alternative 4 - Containment (Source Surface C6ntrol)/Institutional

Controls

Source Surface Control ^Options:

In-situ Mixing

 H

, Revegetation

Simple Cover--^^

Alternative 5 - Containment (Surface Water Control, Source Surface

Control)/Institutional Controls

Surface Water-Control Options:

-

 x

 Diversion Ditches

- Channelization

-,.-"•"""" Source Surface Control Options:

In-situ Mixing Revegetation

Simple Cover

">., ••' Alternative 6 - Removal/Transport/Disposal/Institutional Controls

Removal Options:

Mechanical Excavation

22909N-22327/R47.5 OS-09-94(10:28am)/RPT/33 5*2
Woodward-Clyde

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\ - Transport Options:

Truck Hauling

- Disposal Options:

On-site Repository

w - On-site Consolidation

\^ Using the data collected for the EE/CA, the retained alternatives will be reviewed and

evaluated for technical feasibility, reasonable cost, institutional considerations, and

!, environmental impacts for each play area containing greater than 3,500 ppm lead in the

" * * ,*" ' . surficial material. Additional remedial alternatives specific to the areas in the residential

j areas may also be considered, subject to public and agency approval. Following a

comparative analysis of the retained alternatives, recommended remedial alternatives

I will be identified in conjunction with the Cultural Resources considerations as discussed

^ in Subsection 1.5. x

. ~"w""-^,. "'"- 1--- . • - O 5.3 DEVELOPMENT AND IMPLEMENTATI^f^F EE/CA

Asarco will prepare and submit to EPA a report which presents the site investigation

methods and results, site conditions which justify a removal action, compliance with

* ARARs, and the identification, evaluation, and selection of remedial actions. The report

will be generally organized as follows:

t '% , *" 1.0 Introduction

L 2.0 Site Characterization

2.1.1 Site Description

2.1.2 Site "Background

j 2.13 Analytical Data

** 2.1.4 Site Conditions that Justify a Remedial Action

22909N-22327/R47.5 08-09-94(10:2Sam)/llPT/33 5-3
Woodward-Clyde

3.0 Identification of Remedial Action Objectives

3.1 Determination of Removal/Remedial Scope

3.2 Determination of Removal/Remedial Schedule

3.3 Compliance with Applicable or Relevant and Appropriate

Requirements (ARARs)

4.0 Identification of Remedial Action Alternatives

5.0 Initial Screening of Remedial Action Alternatives

5.1 Public Health and Environmental Protection

/ " •' ;'" *'*^ - 5.2 Timeliness

\ "••••" / 53 Technical Feasibility s

5.4 Institutional Considerations ,

 v

6.0 Analysis of Remainihg Remedial Action Alternatives

6.1 Identification of Acition-Specific ARARs

6.2 Technical Feasibility >

6.3 Cost Effectiveness „„,

6.3.1 Cost Estimate

. —6.3.2 Pjesent Worth Calculation

633 Sensitivity Analysis

^6.4 Institutional Considerations

6.5 Environmental Impacts

6.6 Summary

22909N-22327/R47.5 08-09-94(10:28am)/RPT/33 5-4
Woodward-Clyde

7.0 Comparative Analysis of Remedial Action Alternatives

7.1 Technical Feasibility

7.2 Cost Effectiveness

7.3 Institutional Considerations

7.4 Environmental Impacts

8.0 Recommended Remedial Action Alternatives

x /

 N X , ' " ••' •

9.0 References /"\

Appendixes

22909N-22327/R47.5 08-09-94(1 (h2Sam)/RPT/33 5-5
Woodward-Clyde

6.0

SCHEDULE

The proposed schedule for finalizing and implementing this work plan is provided in

Figure 6-1.

I L

22909N-22327/R47.6 OS-09-94(10:38mi)/RPT/33 6-1
r r r r r r r r r t— r r

PARK S AN D PLAYGROUND S

SUBMIT DRAFT WORK PLAN TO EPA/STATE

CONDUCT FIELD RECONNAISSANCE

SUBMIT EE/CA DRAFT WORK PLAN TO AGENCIES/COMMUNIT Y

AGENCY REVIEW

PREPARE/SUBMIT EE/CA FINAL WORK PLAN

AGENCY REVIEW AND APPROVAL

IMPLEMENT EE/CA WORK PLAN

SUBMIT EE/CA DESIGN REPORT

WEEKS

1 2

}

t

/

y

:f

3

\

1I

4

•i

5

m

'''

6

;

i

i

V

7

(

4

!

8

•

9

\

' "

10

i

I t

•

12

•

••?'

13

•

.y

.../

)

14

•

/

/

/

15

•i

•

i/

/

16

•

•

/

17

•

18

"

19

J -L

J

/

^^

20

>

21

M

22

pi

23

^

24

i

25 26

./•

27 28 29 30 31 32 33 34 35 36

•

37

•i

38 39 40

2909PAPS

PARK S AN D PLAYGROUND S EE/CA SCHEDUL E

FIGURE 6-1
Woodward-Clyde

7.0

REFERENCES

Asarco. 1994a. Work Area Management Plan for Asarco. Incorporated at the

California Gulch NPL Site. Leadville. Colorado. Appendix B to Consent Decree. April. / ;

f* , '""">. "V- Asarco. 1994b. Identification and Evaluation Plan for Cultural Resources California V " V Gulch Superfiind Site. Lake County. Colorado. Prepared by Foothills

Engineering Consultants, Inc.

/ "'V,

v Bradley, Campbell & Carney. 1988. Soil Investigations In the Leadville Study Area.

' ^v ^ Prepared by J.P. Walsh and Associates.

 k

Camp Dresser and McKee (CDM). "~~i994^ Soils Investigation California Gulch

CERCLA Site. Leadville. ColoraBo.-FinarWork Plan. Prepared for Resurection

Mining Company. /

Camp Dresser and McKee (COM). 19?3; California Gulch Soil s Investigation. Prepared for Resurection Mining Company.

Environmental Protection Agency (EPA). 1988a. Draft Engineering Evaluation/Cost

Analysis Guidance for Non-Time-Critical Removal Actions. March.

Environmental Protection Agency (EPA). 1988b. Laboratory Data Validation. Functional Guidelines for Evaluating Inorganics Analyses. July.

4 v

- , *"-;. : .

;

Environmental Protection Agency (EPA). 1993a. Test Methods for Evaluating Solid

Waste, Physical/Chemical Methods (SW-846). Third Edition and Final Update I.

Environmental Protection Agency (EPA). 1993b. Final Screening Feasibility Study for

Remediation Alternatives at the California Gulch NPL Site. Leadville. Colorado. September.

22909N-22327/R47.7 OS-09-94(10:38im)/RPT/33 7-1
Woodward-Clyde

i Res-Asarco. 1991. Draft Phase II Remedial Investigation Scoping Document. California

Gulch Site. Leadville. Colorado. Prepared by Woodward-Clyde Consultants.

: April. »-•

 Res-Asarco. 1993. Sampling and Analysis Plan and Quality Assurance Project Plan.

*- Yak Tunnel Operable Unit. California Gulch Site. Leadville. Colorado. Prepared

by Baker Consultants.

t /

u • / /'"'•** a "\

United States Government Printing Office. 1993. 29 CFR 1910.120.

tL /y Weston. 1990. Day Care Soil Sampling Data. (Unpublished).

22909N-22327/R47.7 OS-09-94(10:38«m)/RPT/33 7-2
' ^

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.~v

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'"/.-:-, : ;;':'-':/;.> ; ;A-- V :••.- .

. ;:-::^^://^^sr':Y:;:^>^;.

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.*v«.x.v-< : ^::V-^-^>,;vv;'V.^v--^vv5-%^v..;••'•= ;----""->v.::: :v^ .-:••:• -:..--^,v. ,\>;.- •-••. 
Woodward-Clyde

L

L

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit:

Weather: _ A

Location (address £ on map):

f School Alley _ Nursery Other

Day Care Center

if yes, what

Size:_i

Site Features (i.e., rocky, hilly, bike path.):

One*v-kj»-uj^><*--s —* uHf3' "^ k-*U. Grass Cover/Trees/Bare Areas (as a|>ercenta.ge of total'area):

Activities (i.e., swings or ball park): _S

Leadville Resident: Yes ___ \ No

F ;0 o/v,

(j**

er Areas Where Their Children Play

Supervision: _____,

;

" " /' /'—-^ .

Frequency of Use (i.e., visits per month per season).

,•*"** *" - ''" . " :,'. .

- <" "'- ^ \-^ "';• Amount of Time^Spent per visit:

 v

'v'______ _ Age & Number of Children: under six

twelve to sixteen

six-twelve

Number of Pets:

Handwashing facih'ties available: Yes

Other Observations:

No

-Clyde

(U

22909N-22327/PARKS.FM 06-23-94(»:44«m)/RPT/32 Page 1 of 1
Woodward-Clyde

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit:

Weather: __S

OfiG

/

Location (address & on map):

School Alley

Size:

Nursery __ ___

Other X if yes. what"T>

ty-f- /BeeJLo

Site Features (i.e., rocky, hilly, bike path):

-4-Aisi-e-V- V?«.cJL_. Grass Cover/Trees/Bare Areas (as a percentage of total area):

Activities (i.e., swings or ball park):

Leadville Resident: Yes ___ ; No ..i.^'^* "'--^^

Other Areas Where Their Children Play

Supervision: ____/ >., /• /-— -

Frequency of Use (i.e.,jwsits>per month per season)

Amount of Tinie^Spent per visit: ""-^________

Age & Number of Children: under six.

s

 twelve to sixteen

six-twelve

Number of Pets: A

Handwashing facilities available: Yes No

Other Observations:

•

:

.»

-^

a la A/1

t Voodwanf-ttlyde Consultants

22909N-22327/PARKS.FM 06-23-94(8:44am)/RPTO2

f

Page 1 of 1
L Woodward-Clyde

L

L

L

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit:

Weather: Ouuurue

. MVIMLX& 1^» JL.

1—"

Location (address & on map): i u

School AUey _ Nursery Other _

Day Care Center.

if yes, what

Park ___ Playground X

Size: "!CX:xJ*vvSLW»- .

Site Features (i.e., rocky, hilly, bike

Grass Cover/Trees/Bare Areas (as a percentage of total area):

Activities (i.e., swings or ball park): __

Leadville Resident: Yes A No

Other Areas Where Their Children Play 5 ^ "

Frequency of Use (ie.^ visits per month per season).

Amount of Time .Spent per. visit: 6?)

Age & Number of Children: under six

twelve to sixteen

six-twelve K

Number of Pets:

Handwashing facilities available: Yes .JUTVv5 \ . No

Other Observations:

Woodward-Clyde Consultants OLXS-Oo

22909N-22327/PARKS.FM 06-23-94(8:44un)/RPT/32 Page 1 of 1
Woodward-Clyde

I

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PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit:

~~ Weather:

Location (address & on map): ___ J • ' f >n ktSSfu •T A 1/VN

«

School Alley

Nursery Other

Day Care Center

ifves. what

Park ___ Playground V

Size: fg

•:»

vjArf i > V-t I Site Features (i.e., rocky, hilly, bike path): J^M/UyA

Grass Cover/Trees/Bare Areas (as a percentage of total area): t:-t3-^-£xJ •"' " -t»TM^ ^

L

*

V W

°__£"^*HW,. , Activities (i.e., swings or ball park): &x^iV ^ ^ "ffl.^,, . --D;J

 —— -

Leadville Resident: Yes A \ ( No

Other Areas Where Their Children Play

Supervision:

Lft^

f_4J-i

a

I Frequency of Use (i.e., visits per month per season).

, .>

f

 _^ '*:--% '"''-,,

 t

 ^--| Amount of Time Spent per visit: O(A &xj j-t_ P

* * / /

Age & Number of Children: under six

twelve to sixteen

six-twelve

II "

Number of Pets:

Handwashing facilities available: Yes

Other Observations:

No

Woodward-Clyde Consultants

22909N-22327/PARKS.FM 06-23-M(«:44-aj)/RPT/32 1 Of 1
I

L

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Woodward-Clyde

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

«-?

Name of Site (if applicable):

Date & Time of Visit: H:

Weather: Cl

Location (address & on map):

School Alley. Nursery Other _

X 1

Day Care Center

if yes, what __ j_ Park ___ Playground X

Size: __|

Site Features (i.e., rocky, hilly, bike path):

Grass Cover/Trees/Bare Areas (as a percentage of total area):

Activities (Le., swings or ball park): _

Leadville Resident: Ye

J

.."c:"* "

s X " "•<*/ ~~ N " 'v -

:

,

Other Areas Where Their Children Play '

s

r--____ _

Supervision:

c±s\

V

Frequency of Use (i.e., visits per month per season)_Jl<.rife'T"nnoL - VJLO^ . <3.TJVufijo

Amount of Time 5penf per visit:

 % /^ [Mf__________L

Age & Number of Children: under six

x

 twelve to sixteen

(_?>) six-twelve i ll

Number of Pets:

Handwashing facilities available: Yes

Other Observations: KiflLfl

No

& *\& Vp

* • ^ v

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e Consultants—j -r i

22909N-223I7/PAWCS.FM , Page 1 of 1
Woodward-Clyde

L.

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit: |O :

Weather: _

U /7 «fr

Location (address & on map): \3 rtA

School ___ Nursery __ Day Care Center / *'•"

 /P/a rk X Playground. Alley ____ Other ____ if ves. what "Bw eg Uc

Size:

Site Features (i.e., rocky, hilly, bike path):

*%., "*N * ^ «-7 Grass Cover/Trees/Bare Areas (as a percentage of total area): ^.^ (l

Activities (i.e., swings or ball park):

Leadville Resident: Yes___

Other Areas Where Their Children Play

Supervision: ^kK30V<L^. • .^-•""---—.../_____________

Frequency of Use (i.e.

±

 visits per month per season) | ^*J^«-«

,-""* ~~~~^ ^,,.. ""-,, 7]

/

 __i_ i

:

, •:

:

, ,. f U Amount of Time Spent per visit: Kfru i-t ._________

Age & Number of Children: under six

twelve to sixteen

six-twelve

0

Number of Pets:

Handwashing facilities available: Yes

Other Observations: £•

^A^0LjQ—

No
Woodward-Clyde

L

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PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO j g.

Name of Site (if applicable):

Date & Time of Visit:

Weather: __^

Location (address & on map):

School ^X Nursery __ Alley ____ Other

Day Care Center,

if yes, what __£.

Park ___ Playground

Size; -gTi^jiij- ^^jj^^k*^ ffi S LM** \C

Site Features (i.e., rocky, hilly, bike path): yU>:

vt ><*X.

Crrass Cover/Trees/Bare Areas (as apercentage of total area):

(i.e., swings or ball

Leadville Resident: Yes No

Other Areas Where Their Chiidren Play

Supervision: _____• < / .•"•--—-.•-.

Frequency of Use (i.e., viats per month per season).

Amount of Time Spent"per visit:

 N-/_______

Age & Number of Children: under six

twelve to sixteen _

six-twelve

Number of Pets:

Handwashing facilities available: Yes

Other Observations: r l/i/vmr

No

k^io

^ ft< Woodward l-Clyde Consul

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22909N-22327/PARKS.FM 0

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Woodward-Clyde

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PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit: \Q'. 15

Weather:

f w>Tvut i

(f ZES ~bG

/, CWA4.__...,

Location (address & on map): S r, 4-

School Alley

Nursery OtherDay Care Center

ifves. what

Park Playground

Size: X r

Site Features (i.e., rocky, hilly, bike path): / o

Grass Cover/Trees/Bare Areas (as a percentage of total area):

Activities (i.e., swings or ball park): _

Leadville Resident: Yes X No

Other Areas Where Their Chiidren Play

Supervision:

Frequency of Use (i.e., visits per month per season) ^fff- ?*"" "*"**-»W*^

 T '-\ ; '

Amount of Time /Spent per visit: '

T\

w

 . _.__..____

twelve to sixteen

\ six-twelve

Number of Pets:

Handwashing facilities available: Yes No /"

Other Observations : -00-X.cx rv\<t-*u»

Q0mrtiug>r> /g rfc^

IWoodward-Clyd 1 e consultants

22909N-22327/PARKS.FM 06-23-94(8:44im)/RPT/32

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L Woodward-Clyde I ( g) PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO icWo-, H , Is

. 1

Name of Site (if applicable):

I .. .

*- Date & Tune of Visit: IQ'M-S_____Upf t l\ *. 1

!„ Weather:

i

School AUey

Size:

Nursery Other

ff- i i • -m »»w- .»— — . ..

Day Care Center Park

ifyes T what /

^jO vi/L» X. ^50

 v itA-o

Playgroun

* * d f *"& *

Site Features (i.e., rocky, hilly, bike path):

Grass Cover/Trees/Bare Areas (as ^percentage of total area):

"~^.«-, Activities (i.e., swings or ball park): ____

Leadville Resident: Yes X. No.

Other Areas Where Their Qmdren Play

Supervision: _

« L x >

Frequency of Use (i.e., visits per month per season)

..,,.-'•• "•-->-»,. •-,,, " * x

Amount of Time Spent per visit: v

Age & Number of Children: under six (J) ^vruOcX. six-twelve (U ^ i twelve to sixteen _________

Number of Pets: *

Handwashing facilities available: Yes ____________ No

Other Observations: ____________________________

Woodward-Clyde Consultants

22909N-22327/PAKKS.FM 06-23-94(8-.44un)/RPT/32 Page 1 Of 1
Woodward-Clyde

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit: I

oJu /

fr/jg—— *

Weather:

(o ZB .7 / -'2

"

Site Features (i.e., rocky, hilly, bike path):

Grass Cover/Trees/Bare Areas (as a percentage of total area):

•Activities (i.e., swings or ball park):

Leadville Resident: Yes ___ No

Other Areas Where Their Children Play

Supervision: _____/ •'- ••• .•—-—

Frequency of Use (i.e., visits per month per season).

Amount of Time Spent per visit: ""-v___________

Age & Number of Children: under six

twelve to sixteen _

six-twelve

Number of Pets:

Handwashing facilities available: Yes

Other Observations: Mo cMUin uMJtC JU>€A)

No

^ L\ Qy Woodward-Clyd ~ ~ e Consultants

22909N-22327/PARKS.FM 06-23-94(8:44im)/RJT/32

Location

School _ Alley

Size:

(address & on

__ Nursery Other

^"7?^ vidL

maP):

 c^u^v ^vVbLt

Day Care Center

ifyes rwhat

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Page
I

Woodward-Clyde

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO , oj i_O

Name of Site (if applicable):

Date & Tune of Visit:

Weather: _

: /^tk d^m/OU. UcirP

to /Of t

Location (address

School ,A Nursery Alley ____ Other _

& on map): (

Day Care

if yes, what

Size: \ .

Site Features (i.e., rocky, hilly, bike path): ffa na jrit t

Grass Cover/Trees/Bare Areas (as a percentage of total area): n O

Activities (i.e., swings or ball park): Ttt3ftaiDl/ 4ft »|pl._______

Leadville Resident: Ye •*<'•' s

 : __ -'^^^^^^^^^^^^ _ N \ \ ^^^^^^^^^^^^^^ o ____TM

. <" ''-.. -, "j

Other Areas Where Then: Children Play \/____________

Supervision: _______•''. . .- y""-—-..-^,/_______________

Frequency of Use (i.6., visits per month per season).

Amount of Time .Spent per visit:

 x

^ '

:

_______

Age & Number of Children: under six

twelve to sixteen

six-twelve

Number of Pets:

Handwashing facilities available: Yes _

Other Observations: MnftJiS. iPfca Q Jfitof^t

01

No

tor\fJL- QLhiA. ^

Woodward-Clyde Consultants

22909N-22327/PARKS.FM 06-23-94(8:44«n)/RPT/32 PagC 1 Of 1
Woodward-Clyde

L

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit:

Weather: .

Location (address & on map):

School AUey _ Nursery Other _

Day Care Center

if yes, what y / Park ^y Playground

Size:

Site Features (i.e., rocky, hilly, bike path):

Grass Cover/Trees/Bare Areas (as a'percentage of total urea): •-- """•——.

"^""•--^, I "*"'~ w'/?N Activities (i.e., swings or ball park): 15os£AlQa&I *V

Iville Resident: Yes___ No

Other Areas Where Their Children Play

"*''"''*• ""><*~*:.:

Supervision: _____-•• •-• •-" /•'—--•>•->

Frequency of Use (i.e.^ visits per month per season),

•*"' " '\ . '-= ; " %' \ \ Amount of Time^SpenTper visit: 'V-"' _______ _ Age & Number of Children: under six

% twelve to sixteen

six-twelve

Number of Pets:

Handwashing facilities available: Yes ________

Other Observations: \ (\ v^a \ o i W uoa A Ao \\JLH)

No

tA LJi Woodward-Clyde Consult^npT

22909N-22327/PARKS.FM 06-23-94(*:44«m)/RPT/32 Page 1 of 1
Woodward-Clyde

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable): | ML C

Date & Time of Visit: £ : 3S~

Weather: _ / ^UwUf^

, TMGr"

Location (address &. on map):

School 4y Nursery s* Day Care Center /X/ Park___Playground Alley ____ Other ____ if yes, what .""TW. CA*

 o

tidLo . O Site Features (i.e., rocky, hilly,

Grass Cover/Trees/Bare Areas (as a percentage of total area

Hx-t^..

. ___r

rea): Sg>*7

<_" ~^/J |K -r_> * f Activities (i.e., swings or ball park): ^tuftfagy. gugg-Jcte-cA kk*f "^7

*w Leadville Resident: Yes______^___ No.

Other Areas Where Their Children Play &M-*^ toToS) ,

Supervision:

Frequency of Use (i.e., visits per month per _f

,-":"" "~~-^,

v

 '"•'-... ,

 H-%, .

_

 x ^*^j

-

> >*'TM*i

 ^ ";^ J^\ I / K Amount of Time /Spen t per visit:

 Ho*lus a V & Number of Children: under six ________ six-twelve

twelve to sixteen __________

Number of Pets: •••>. ' - ~"—'_________________ 1

 ' \i \jf\"^(&-i^ *-• . Handwashing facilities available: Yes ____MCO_____" No

I Other Observations: ____________________________

: \ H '~

Woodward-Clyde Consultants

22909N-22327/PARKS.FM 06-23-94(8:44«m)/RPT/32 PaC 1 Of 1
Woodward-Clyde

\V

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit: <3 .'4 S

Weather: J'^o

 l

Location (address &. on map)! f( ft^AJA%l?> \ rn HP^

School Nursery Day Care Center , Alley Other ifyes rwhat

Size: 2t>riA>iA* X OO uiJLo --

r

\ <*\ " "'''"*•• "i"

%

- i A

Park Xf • Playgroun » -r o- d X

\ v\

Site Features (i.e., rocky, hiUy, bike path^r

Grass Cover/Trees/Bare Areas (as a percentage of total area): ^0 /k

Activities (i.e., swings or ball park):

ille Resident: Yes X j No

Other Areas Where Their Children Play

Supervision:

_ -i. Frequency of Use (i.e^ visits ^permonth per season).

,-'' ,*—•,. ^\ '"•- . \ Amount of Time/Spen t per visit: k ftqj ->^>

Age &. Number of Children: under six

twelve to sixteen

'"'-.. . ":*"!- Number of Pets: ""•-.. Handwashing facilities available: Yes

Other Observations:

ffsJQ *~

Woodward-Clyde Consultants

22909N-22327/PARKS.FM 06-23-94(S:44un)/RPT/32 1 Of 1
Woodward-Clyde

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PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO j\c*tuuuL/> ^

Name of Site (if applicable):

Date & Time of Visit: _<£

Weather: L, CUuJ—

Location (address & on map): i^JSJcuj&j>y __ -...v _ CiA- . l

School Alley _ Nursery __ Day Care Center Other A if yes, what

Park

o cT~ Playground L". , <jtjLAi? 4-

Size:

Site Features (i.e., rocky, hilly, bike path)rTkt

Grass Cover/Trees/Bare Areas (as a percentagejrf total area):

Activities (i.e., swings or ball park):

Leadville Resident: Yes No *>C

Other Areas Where Their CMdren Play

Supervision: ' ' I

Frequency of Use (i.e., visits per month per season) I [/VLu rtii i

/"' — — —————— — » „ "'•". . "*'!, . . ? X~ V Amount of Time^Jpent per .visit:

f ew

Age & Number of Children: under six

twelve to sixteen

six-twelve

Number of Pets:

Handwashing facilities available: Yes

Other Observations:

No

J

Woodward-Clyde Consultants

22909N-22327/PARKS.FM Ofr-23-M(8:44«m)/RPT/32 PagC 1 Of 1
Woodward-Clyde

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

Name of Site (if applicable):

Date & Time of Visit: £'*&>

Weather:

&\

(A

Location (address & on map):

School Alley _ Nursery Other _

Day Care Center

if yes, what

Park-A Playground.

Size:

^

Site Features (i.e., rocl^, hilly, bike path):

-

t V >

.

Grass Cover/Trees/Bare Areas (as a percentage^ of total area): I^Dyo

Activities (i.e., swings or ball park):

Leadville Resident: Yes V No

Other Areas Where Their Children Play I

Supervision:

p

4

•-

 x Frequency of Use (i.e., visitshpermont ~-» h per season)_£^cuiii

^

fj.~"*~ *""°", "s, %.,

/ • .^.—-, "\ .^^PpCD^"» i Amount of Time Spent per visit: * 1 WJT .______

O

Age & Number of Children: under six

twelve to sixteen

six-twelve

Number of Pets:

Handwashing facilities available: Yes No

Other Observations:

«>TsAAf t h

i r^

tx 4 Jul.

Woodward-Clyde Consultants

22909N-22327/PARKS.FM 06-23-94«:44un)/RFT/32 Page 1 of 1
Woodward-Clyde

PARKS AND PLAYGROUND SURVEY FORM LEADVILLE, COLORADO

A Name of Site (if applicable) : I j

Date & Time of Visit: SS fo :ra fo/5>f e , UiVffif j?_* g^

Weather: »f^^rw. /

r&

School _ Allev

Size:

_ Nursery _ Other

,OoHA^ X.

Day Care Center .

if yes. what

«<^&o .

Park >C Playground

, '"

 %h%.

Site Features (i.e., rocky, hilly, bike path): <-^^^'T^<gr*a ^ __ ^ &z** ^ pAVjL^A^ff ... ^ i CtfarA ioklft .

>,, f -^ _ Grass Cover/Trees/Bare Areas (as a percentage of totaTarea): |DC>Xvl

/?ox3____

\^i_

^ .^

Activities (i.e., swings or ball park): ^Lgj^krTt-^ pir.ruV -\oL4fl . ^n^^i^toj^j^ \v/ ' 0 Q L^0

., ^/LeadviUe Resident: Yes ___ No T. >/^3^ ,-•-•"""'"--% \ -.

^ Oth Other Area e s Where Thek Children Play

Supervision: _____£__l______£lll_r:

Frequency of Use (i.e., visits fier month per season).

Amount of Time ^penfper visit: "">________

Age & Number of Children: under six ________ six-twelve

twelve to sixteen _________

Number of Pets: '

!

" N. "" -•'____________

Handwashing facilities available: Yes ____________ No

Other Observations: ___________________________

|_ Woodward-Clyde Consultants

I ~— - 22909N-22327/PARKS.PM 06-23-94(8:44am)/RPT/32 PagC 1 Of 1
J•:-'. " jJ - • , ,•;>

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^^-^

STANDARD OPERATING PROCEDURE W. DECONTAMINATION

California Gulch CERCLA Site Leadville, Colorado

Modified from "Standard Operating

W

 Procedure No. 1 - Decontamination"

Revision No. 3.0, August 29, 1991

i Prepared by Woodward-Clyde Consultants

fc*^* '"— "'" ""•

Version: October 9, 1993

SOP NO. 1

ASA*«WO«/NEW.!OI> i or.*.* \.\ Baker Consultants, Inc.
TABLE OF CONTENTS SOP NO. I

^- Section Page

1.0 INTRODUCTION AND TYPES OF CONTAMINATION ...........

i

 r

, 1.1 PERSONNEL EXPOSURE ........... ... .............. 1-3

1.2 SITE AND/OR SAMPLE CROSS-CONTAMINATION .....

p 2.0 PROCEDURES .................. . < . . . . . .............. 1-4

2.1 EQUIPMENT LIST ......... J. X . J ; , ... ........... 1-

x

 2.2 DECONTAMINATION ....... S''. .... .

^j 2.2.1 Personnel ....... . /\ ,. ......... . . .......... 1-4

2.2.2 Sampling Equipment . . : ...................... 1-5

: 2.2.3 Drilling and Heavy .Equipment ................... 1-5

w 2.2.4 Equipment Leaving the Site v .................... 1-6

2.2.5 Wastewater . . .-.. .'>...

:

-: . ; .................... 1-6 I 2.2.6 Other Wastes . .>.,. !. 4 ..................... 1-6

w 2.3 DOCUMENTATION ..... .'>v

:

 .............

, . 3.0 QUALITY ASSURANCE REQUIREMENTS .:...............

A»A«casow/NEw.sor i <n-i».»j 1-2 Bcfcf/- Consultants, Inc.
SOP NO. 1

! 1.0 INTRODUCTION AND TYPES OF CONTAMINATION

w

The purpose of this document is to define the standard procedure for decontamination for the

i , Yak Tunnel Operable Unit project. This Standard Operating .Procedure (SOP) serves as a *"* supplement to the Quality Assurance Project Plan (QAPP) and the Field Sampling Plan (FSP). This procedure is intended to be used together with the SAP and the other SOPs. I •* '""*•-- * 1.1 PERSONNEL EXPOSURE x

 •*_..• N . " v

1^ Workers involved in site activities may come into contact with soils,- surface water, ground

water, and sludges from the Yak Tunnel Operable Unit. Assessments of the area have identified

* the potential contaminants as metals and silica. These constituents are not considered toxic to

^ humans by dermal route, although they may cause skin irritation at concentrations much higher

than those found in the Yak Tunnel Operable Unit to date. Extended dermal exposure to open

wounds, however, could lead to uptake of toxic constituents. The Yak Tunnel effluen t water

^ is slightly acidic. Physical contact with drainage water for long periods of tune may cause slight

irritation due to the pH. It is also known to cause some skin discoloration. Ingestion of soils

. and Yak Tunnel effluen t is to be ayoidedr Inhalation of soils during operations producing

w

 respirable dust is another possible exposure route. As Outlined in the Health and Safety Plan,

the exposure will be controlled through the use of respirators as necessary based on air

; monitoring results. A splash into the eye is expected to cause irritation due to the acidity of the

^ effluent s and is to be avoided.,.Exposure to potential dermal and ingestion routes will be limited

by decontamination procedures, site prohibitions and the use of personal protection equipment.

/ / '• : \/

Li 1.2 SITE AND/OR SAMPL . • - -• E CROSS-1CONTAMINATIO '"""^V *»TM»w ' N

"•V.

v

 "':.. •: \ The overall objective of multimedia sampling programs is to obtain samples which accurately

*•* depict the chemical,,physical, and/or biological conditions at the sampling site. Extraneous

contaminant materials .can be brought onto the sampling location and/or introduced into the

| medium of interest during the sampling program (e.g., by bailing Or pumping of ground water

^ with equipment previously contaminated at another sampling site). Trace quantities of these

contaminant materials can thus be captured in a sample and lead to false positive analytical

*u results and, ultimately, to an incorrect assessment of the contaminant conditions associated with

 the site. Decontamination of sampling equipment (e.g.. bailers, pumps, tubing, soil and

sediment sampling equipment) and Held support equipment (e.g., drill rigs, vehicles) is therefore

1 required at the Yak Tunnel Operable Unit to ensure that sampling cross-contamination is

»~ prevented, and that on-site contaminants are not carried off-site.

i oi.it.«i 1-3 Baker Consultants, Inc.
SOP NO. 1

] 2.0 PROCEDURES

if

2 .1 EQUIPMENT LIST

The following is a list of equipment that may be needed to perform decontamination:

• Brushes

• Wash tubs , N

• Buckets %

• Scrapers %,.: v " x ''•-., , • Steam cleaner or high-pressure sprayer .

• Disposal drums

• Sponges or paper towels

• Alconox detergent (or equivalent)

• Potable water ;

 c /

• Nitric acid solution (10%) \

v • Distilled, metal-analyte-free water

 x

 ,

• Garden type water sprayers

 s

 x

• Clean plastic sheeting and/or-trash bags '

2.2 DECONTAMINATION \ / T^^

2.2.1 Personnel „— /"" ":

=.. ^- "•;

/ x**T>""i ^., v. 'I A temporary personnel decontamination line will be set up at each sampling or construction site. The temporary decontamination line should provide space to wash and rinse boots, gloves, and

all sampling or measuring equipment prior to placing equipment into a vehicle, and a container

to dispose of used disposable items such as gloves, tape or tyvek (if used). X;

, x, Decontamination procedure for field personnel working in areas of known or expected hazardous

waste shall include: Boots rinsed

^Coveralls removed Boots washed with Alconox Hard hat and other safety equipment removed and washed with Alconox Gloves and respirator removed Boots rinsed in potable water Personnel shall wash hands, face, and forearms before eating All personnel will shower at the site at the end of every work day

As*«ccvsory»iEw.sof i OM..W i_4 Baker Consultants, Inc.
I

SOP NO. 1

I 2.2.2 Samplin g Equipment

(

 The followin g steps will be used to decontaminate sampling equipment that has been exposed

! to known or suspected hazardous materials (including reusable filter apparatus):

t

 • Personnel will dress in suitable safety equipment to reduce personal exposure.

• Gross contamination on equipment will /be scraped off at the sampling or

 construction site.

• Equipment that will not be damaged by water will be placed in a wash tub

; containing Alconox or low-sudsing detergent along with potable water and U) scrubbed with a bristle brush or similar utensil. Equipment will be rinsed with

potable water in a second wash tub followed by a nitric acid solution (10%) rinse,

. a distilled, metal-analyte-free water rinse, and drying with paper towel.

• Equipment that may be damaged by water will be carefully wiped clean using a

i sponge and detergent water or ^pray bottle and towel and rinsed with distilled, w metal-analyte-free water. Care will be taken to prevent any equipment damage.

• Rinse and detergent waters will be replaced with new solutions between borings

or sample locations.

Followin g decontamination, equipment will be placed in a clean area or on clean plastic sheeting

to prevent contact with contaminated soil; If the equipment is not used immediately, the

equipment will be covered or wrapped in plastic sheeting or heavy duty trash bags to minimize

potential airborne contamination.

2.2.3 Drilling and Heavy Equipment

Drilling and heavy equipment will be decontaminated at the decontamination area for large

equipment near the Surge Pond. The following steps will be used to decontaminate drilling and

heavy equipment:

• Personnel will dress in suitable safety equipment to reduce personal exposure.

• Equipment showing gross contamination or having drill cuttings caked on will be

scraped off with a flat-bladed scraper at the sampling or construction site.

• Equipment, such as drill rigs, augers, drill bits, and shovels will be sprayed with

detergent water by a high-pressure washer, then rinsed with potable water. Care

er.i6.»j 1-5 Baker Consultants, Inc.
I

i " 4LSOP NO. 1

should be taken to adequately clean the insides of the hollow-stem augers and

backhoe buckets.

Following decontamination, drilling equipment will be placed on the .clean drill rig and moved

to a clean area. If the equipment is not used immediately, it should be stored hi a designated

clean area. /

2.2.4 Equipment Leaving the Site

Vehicles used for nonconstruction activities shall be cleaned on an as-needed basis as determined

by the Site Safety Officer by soap and water on the outside and vacuuming the inside. Cleaning

will be required for very dirty vehicles which will be leaving the Leadville area. The cleaning

shall take place on-site. On-site construction equipment such as earth moving equipment, trucks,

drillin g rigs, backhoes, trailers, etc., will be pressure .washed on-site before the equipment is

removed from the site to limit off-site exposure to potential contaminants.

2.2.5 Wastewater

Used wash and rinse solutions must be contained and transported to the Surge Pond. The liquids

will be drained into the Surge Pond. /~*-~^,:

2.2.6 Other Wastes ^_

Solid wastes such as used personal protective equipment and used filters will be collected in

drums. When drums are ful l they will be sealed. Each drum will be labelled with its contents

and the date, using paint or other permanent marker. Drums will be stored on site for later

handling or disposal.

2.3 DOCUMENTASSr

Sampling personnel will be responsible for documenting the decontamination of sampling and

drilling equipment. The documentation will be recorded with waterproof ink in the sampler's

field notebook with consecutively numbered pages. The information entered in the field book

concerning decontamination should include the following:

* Decontamination personnel

• Date and start and end times

* Decontamination observations

• Weather conditions

KM*.*! 1-6 Baker Consultants, Inc.
SOP NO. 1

3 .0 QUALITY ASSURANCE REQUIREMENTS

Equipment rinsate samples will be taken of the decontaminated sampling equipment to verify the

effectiveness of the decontamination procedures. The rinsate procedure will include rinsing

deionized water through or over a representative decontaminated sampling tool (such as a split

spoon sampler or Teflon bailer) and collecting the rinsate water into the sample bottles, which

will be sent to the laboratory for analysis. The rinsate procedure, "including the sample number,

will be recorded in the field notebook. Decontamination rihsates of the decontaminated sampling

tools will be collected at a frequency of one per 20 samples collected, or a minimum of one

rinsate sample per day if less than 20 samples are collected in any given day.

i.

I.V

1-7 Baker Consultants, Inc.

SOP NO. 10

STANDARD OPERATING PROCEDURE NO. 10 SAMPLE HANDLING , DOCUMENTATION, AND ANALYSIS '->.,..' " X ' \

California Gulch CERCLA Site Leadville, Colorado

LV^

- -• "*'''***"''*I<'«MTM_^ "S : Modified from "Standard Operating Procedure No. 10 • Sample Handling, Documentation, and Analysis,"

Revision No.3.1, August 27, 1991 Prepared by Woodward-Clyde Consultants

Version: October 9, 1993

ASAKOSOW/NEW.SW to 07-w-M 1Q-1 Baker Consultants, Inc.
L

TABLE OF CONTENTS SOP NO. 10

I Section Page

1.0 PURPOSE AND SCOPE ................................ 10-3

I • ,-: "l-;

*- 2.0 PROCEDURES FOR SAMPLE HANDLING, DOCUMENTATION AND ANALYSIS .... ,. .; .......

i 2.1 SAMPLE IDENTIFICATION AND LABELING,........... . 10-3

2 .2 SAMPLE CONTAINERS, PRESERVATlVES^AND HOLDING TIMES .......... . V. .... 1 ., . ':-,, ...

\ 2.2.1 Sample Containers . . ,/;•> ........ . -.'":•-.... ....... 10-4

*"" 2.2.2 Sample Preservation , . /. .................... 10-4

2.2.3 Sample Holding Times and Analyses .............. 10-4

i 2.3 SAMPLE PREPARATION AND SHIPPING ............... 1

*" 2.4 SAMPLE DOCUMENTATION AND TRACKING ........... 

2.4.1 Field Notes .... >^J. .(. ................... 10-5

w

 2.4.2 Sample Chain-of-Custody ,. ? >>„ ................. 10-6

2.5 SAMPLE DISPOSAL^. ...... .>x- >• ............... 10-7

*" LIST OF TABLES \'\//^''"

L TABLE 1 SAMPLE pENTIFICAflON.CODES ................... 10-8 TABLE 2 SAMPLE CONTAINERS, PRESERVATION METHODS , AND

i HOLDING TIMES ..... . V; ....................... 10

i LIST OF FIGURES L ._

^ \ "x • " FIGURE 1 "cSSi-ETED SAMPLE LABEL ..................... 10-10 FIGURE 2 EXAMPLE OF CHAIN-OF-CUSTODY FORM ............ 10-11

A*A«c(v«»wNEw.sof 10 «n.i*-»j 1Q-2 Baker Consultants, Inc.

\ .
L

L SOP NO. 10

1

 1.0 PURPOSE AND SCOPE

u The purpose of this document is to define the standard protocols for sample handling,

j documentation, and analysis for the Yak Tunnel Operable Unit project. This Standard Operating

fc- Procedure (SOP) serves as a supplement to the Quality Assurance Project Plan (QAPP) and the Field Sampling Plan (FSP). This procedure is intended to be/used together with the FSP and

i other SOPs and is referenced in all SOPs that apply to sampling.

2 .0 PROCEDURES FOR SAMPLE HANDLING, DOCUMENTATIpNi AND ANALYSIS *''-*, *".*'

2 .1 SAMPLE IDENTIFICATION AND LABELING

/ :

i . Samples collected during treatment plant operations or routine monitoring activities will be

assigned unique sample identification numbers/Each sample identification number will identify

the organization collecting the sample or the program under which it is collected, sampling

i, location, type of sample, and sampling sequence for each" sample. These numbers are required

for tracking the handling, analysis, and verification or validation status of all samples collected

during water treatment plant operations and -routine monitoring. In addition, the sample

^ identification numbers will be input into the,project ^database to identify analytical results

received from the laboratory. \ / /"--~~/

^ Sample identification numbers that are assigned will be divided into four fields as shown hi the

followin g example: " ,

. ^ S:< '"'>.. . -'- ',;

L R-YFW-01-900423

t The first field is one character in length and identifies the company conducting the sampling.

|^ The second field is a three or four character alphanumeric code identifying the location of the

sample (e.g., YFWtndigte s Yak Flpto Water or Yak Portal discharge water). The next field

• identified is the type b7 sample being collected; this is used to identify whether the sample is a L. primary or grab sample, a composite sample, field duplicate, field blank, equipment rinsate, or

matrix spike sample. The final field contains the date hi a year-month-day format to allow data

) in the analytical database to be easily sorted. For example, the sample identified above was L collected on April 23, 1990. Table 1 provides a list of the possible code entries for each of the

data fields for water treatment plant, surge pond, and routine monitoring samples.

\ '""^ L Each sample that is collected in the field will be labeled for future identification. Sample labels

will be filled out as completely as possible by a member of the sampling team prior to the start

of the day's field sampling activities. The date, time, sampler's signature, and the last field of LJ the sample identification number should not be completed until the sample is actually collected. V All sample labels will be filled out using waterproof ink. At a minimum, each label will contain

\ the following information:

u.

_-?-; AM«casoi>s>NEw.sof io O7.i«.« lf>3 Baker Consultants, Inc.
L

l~ SOP NO. 10

Sampler' s company affiliation ; Site location; Sample identification; Date and time of sample collection; Analyses required; Method of preservation used; Sample matrix; and Sampler's signature.

 v

 x

x An example of a completed sample label for is shown in Figure 1. . * ~< ."" .'• v

2 .2 SAMPLE CONTAINERS, PRESERVATIVES, AND HOLDING TIMES

2.2.1 Sample Containers

 c

 x /

t s~ I "N '

; 1

[^ Proper sample preparation practices will be observed to minimize sample contamination and

potential repeat analyses due to anomalous analytical results. Prior to sampling, certified

j commercially-cleaned sample containers wili be obtained from the contract analytical laboratory.

j_. The bottles will be labeled as described in the previous section to indicate the type of sample and

sample matrix to be collected. In general, required preservatives will be prepared and placed

! in the sample bottles prior to shipment to the site. In general, 500 ml glass or polyethylene

[_ bottles will be used to collect water samples that will be submitted for analysis of general

chemical constituents, major inorganic constituents and metals, as shown in Table 4-11.

* /• '• • '•• ''-'' L 2.2.2 Sample Preservation "——--«,

--

v

 "x.. / f "•"~:-~-

/

i Samples are preserved in order to prevent or minimize chemical changes that could occur during L transit and storage. Sample preservation should be performed immediately upon sample

collection to emure ISiaTlaboratory results are not compromised by improper coordination of

i preservation requirements and holding times. Samples will be preserved immediately and stored

i- on ice in coolers prior to shipping. As much as possible, chemical preservatives will be

prepared, measured, and added to the sample bottles by the laboratory prior to shipment to the

; field. However, in the event that an approved preservative is used that has not been provided U by the analytical laboratory, use of the preservative should be coordinated with laboratory

personnel, and an aliquot of the preservative should be submitted for analysis to ensure that the

i preservative has not become contaminated. Sample preservation requirements are based on the

i- most current publication of 40 CFR, Pan 136.3 and are provided in Table 2.

 2.2.3 Sample Holdin g Times and Analyses

Sample holding times are established to minimize chemical changes in a sample prior to analysis

\ and/or extraction. A holding time is defined as the maximum allowable tune between sample

u*

,>.'->. ASA>casorswc«.sopior.ii.t3 10-4 Baker Consultants, Inc. L
u

L

I

SOP NO. 10

collection and analysis and/or extraction, based on the nature of the analyte of interest and

chemical stability factors. Holdin g times applicable for analytes are listed in Table 2. Samples

should be sent to the laboratory as soon as possible after collection by hand delivery or an

overnight courier service to minimize the possibility of exceeding holding times.

The chemical constituents for which samples from all current sampling programs will be

analyzed are summarized in the project QAPP.

 %

2.3 SAMPLE PREPARATION AND SHIPPING / \

After collection, samples will be labeled and prepared as described in the previous discussion,

and placed on ice in an insulated cooler. The sample containers will be placed in recloseable

plastic storage bags and wrapped in protective packing material. Samples will then be placed

right side up in a cooler with ice (double-bagged,using plastic trash bags) for delivery to the

laboratory. X , ' /

Samples will be hand delivered or shipped by overnight express carrier for delivery to the

analytical laboratory. All samples must be shipped for laboratory receipt and analysis within

the holding tunes specified in Table 2. This may require iiaily shipment of samples with short

holding times. , /"--w

2 .4 SAMPLE DOCUMENTATION AND,TRACKING

i This section describes the information that should be provided in field notes and sample Chaini- of-Custody documentation, "TM~~TM~'~"~~~;vj 2.4.1 Field Notes xj w ":

"<s *^,,

ii Documentation of observations and data acquired in the field provide information on sample

! acquisition, field conditions at the time of sampling, if appropriate and a permanent record of

*- field activities/ Field observations and data collected during routine monitoring activities will

be recorded with waterproof ink in a permanently bound weatherproof field log book with

• consecutively numbered pages or on field data sheets as specified in the project SOPs. L *

 'x.

v

 'x % / /

Field notebook and data sheet entries will, at a minimum, include the information listed below.

i Relevant SOPs should be consulted to supplement this list. U*

Project name; Location of sample; Sampler's printed name and signature; Data and time of sample collection; Sample identification numbers;

t

«A«co*or»NEw.sor H> O.M.W 10-5 Baker Consultants, Inc.
u

SOP NO. 10

L

iL

Description of sample (matrix sampled); Sample depth (if applicable); Number and volume of samples; Sample methods, or reference to the appropriate SOP; . Sample handling including filtration and preservation, as appropriate for separate sample

aliquots; / Analytes of interest;

 H

 x

, Field observations; / / N \ Results of any field measurements, such as depth to water, pH, temperature, specific

conductance; and

• Personnel present.

Changes or deletions in the field book or on the data sheets should be recorded with a single

strike mark, and remain legible. Sufficien t information should be recorded to allow the sampling

event to be reconstructed without having to rely on the collector' s memory.

All field books will be signed on a daily basis by the person who has made the entries. Anyone making entries hi another person's field book will sign and date those entries.

2.4.2 Sample Chain-Of-Custody / /"•"--/

During field sampling activities, traceabUity of die sample must be maintained from the tune the

samples are collected until laboratory data are issued. Establishment of traceability of data is

crucial for resolving future problems if analytical results are called into question and for

minimizing the possibility of sample mix-up. Initial information concerning collection of the

samples will be recorded in the field log book or on data sheets as described above. Information

on the custody, transfer, handling and shipping of samples will be recorded on a Chain-of- Custody (COC) form..An "example of a COC form (which is carbonless and consists of three

parts) is provided-in iFigure,2.

, ^.,- . », ^ -^ ,,f •

The sampler is responsible for initiating and fillin g out the COC form. The COC will be signed

by the sampler when he or she relinquishes the samples to anyone else. A COC form will be

completed for each set of water quality samples collected, and will contain the following

information: x x

Sampler's signature and affiliation Project number Date and time of collection Sample identification number Sample type Analyses requested Number of containers U

OM6-f> 10-6 Baker Consultants, Inc.
r

L

L

L

SOP NO. 10

Signature of persons relinquishing custody, dates, and times Signature of persons accepting custody, dates, and tunes Method of shipment Shippin g air bill number (if the samples are shipped) Any additional instructions to the laboratory.

The person responsible for delivery of the samples to the laboratory will sign the COC form,

retain the third copy of the form, document the method of shipment, and send the original and

the second copy of the form with the samples. Upon arrival at the laboratory, the person

receiving the samples will sign the COC form and return the second copy to the Project Manager. Copies of all COC documentation will be compiled and maintained in the central files

hi of ASARCO, Inc., Globe, Colorado. The original COC forms will remain with the samples

until the time of final disposition. After returning samples for disposal, the laboratory will send

a copy of the original COC to the Res-ASARCO Project Manager. This will then be

incorporated into the central files.

 x

 H "* ~

2.5 SAMPLE DISPOSAL ,.''

t *ta,..

4 s ^ '•; . ;

The analytical laboratory will return all samples to the ASARCO water treatment plant for

disposal 60 to 90 days after the analytical results have been reported. The samples will be

disposed of hi the floor sump of the treatment plant. Sample bottles will be triple rinsed with

the rinsates disposed of at the first reactor and the bottles will be subsequently disposed of as

a general solid waste.

10-7 Baker Consultants, Inc.

[_.
u

TABLE 1. SAMPLE IDENTIFICATION CODES

SOP NO. 10

Example Sample I.D.

First field will be:

Second field will be:

I

Third field will be:

Fourth field will be:

R-BBWl-01-911217 * R = Samplin g company

(i.e., ResfASARCO) BBW1 = Sampling location

(u:., Monitoring .Well BBW- 1 )

01 = Type of sample X.

.{i.e., primary sample)

911217 = Date of sample collection

(Year Month Day)

/ (Le., December 17, 1991)

"R" "for ResfASARCO Joint Venture, or other

letters to ideniify subcontractor collecting samples

Yak>6rtal Discharge Water, or

^BBWJ"brMonitorin g Well BBW-1, or

"SEW" fOT~Surface Water, or

rSPW/fo r Surge Pond Water, or

"SSW" for Seep or Spring Water, or

"SPS" for Surge Pond "Sediment, or

"WPE" for Water Treatment Plant, or — . MQIL « for

 Gravity influent Line, or

•— "SPIL" for Surge Pond Influen t Line.or

"WE5" for EPA well MW5, or

"W5A" for EPA well MW5A, or

"W5B" for EPA well MW5B

"01"

"02"

for primary sample or grab sample

f or field duplicate sample

"03" for field blank

for equipment rinsate

f or composite sample

"MS" for matrix spike and duplicate

"04"

"10"

YEAR MONTH DAY Date sample collected

AMKCOrSOK/NEW.SOr 10 OJ-I6-W 10-8 Baker Consultants, Inc.
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SOP NO. 10

TABLE 2. SAMPLE CONTAINERS, PRESERVATION METHODS, AND HOLDING TIMES

Analyte

pH

Specific conductance

Total alkalinity (as CaCOj) Total dissolved solids /

Total suspended solids

Chloride

Cyanide (total) Mercury Nitrate as N

Total Phosphorus

Radionuclides (total) Radionuclides (dissolved) Silica

Sulfate

Dissolved metals'"

Total metals'"

Total recoverable metals

Turbiditv

Container"

P.G

P,G

\ PI G

/ PJG / Kv,

""' . / ' / / '"X . ' S

/P,G/ : K x-, . .J 1 / P & ' ) P,O 1 |

P.G | 1 '

 x p

. G

 f N J X'

P.G ''^y"' P

P.G

P.G

P.G

P.G

P.G

Filtration m

No

No

Yes

Yes

No

Yes

No

Yes ,

/i /

x?i /

>«/ H / 'Vei / j No

 <l

-./

No

No

Preservation

Cool. 4*C

Cool. 4°C

Cool. 4°C

Cool. 4"^

Cool, 4"C None required

Cool, 4"C, NaOH to pH > 12

HNO,topH< 2

Cool. 4°C

Cool, 4-C, H,SO4 to pH <2

/

 v HNOjtopH <2

/ /HNO, to pH <2

/ / CooV4'>C

/-^.,N> cooi;4k: ,.,,

- Cool. 4"C. HNdi to pH <2

Cool.4»C, HNOjtopH <2

Cool. 4"C, HNO, tii jpH <: 2 } Cool. 4"C / /

Holdin g Timem

7 daysw

28 days

7 daysw)

7 days

7 days

28 days

12 days

26 days

2 days

28 days

6 months

6 months

28 days

28 days

6 months

6 months

6 months

2 davs

" Bottle code: P=polyethylene bottle with polyethylene-lined lid. G=glass bottle with Teflon-lined polyethylene lid. <!l

 Samples requiring filtration must be filtered in the field using a 0.45 /im membrane filter before preservative is added. < 5)

 Holding times start at date of sample collection. "'f

"> Sample pH and alkalinity should be analyzed as soon as possible after collection. However, for practical purposes, the holding times have been set at seven

days. The 14 day holding time specified in 40 CFR 136.3, Table II, is considered to be inappropriate for the high carbonate waters of the Yak system. 151

 Metals in this category are listed in Section 4.1 of the QAPP.

10-9 Baker Consultants, Inc.
L

SOP NO. 10

FIGURE 1. COMPLETED SAMPLED LABEL

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U SE BALLPOINT PEN ONLY 1

Ljr^pl^- ^^ ^^^£^^^ ^^ ^^\

^» 1 ^^ * ^1 •fc'^^k^-^v f J ComoanyName

Sample Oescnpoon < /

•v ""V-"

-2>;^,B^.A M^o.\* //' • Parameter / _/

Dare ana Time • '^x . -1.,

SampjersSrgnature ^^""^---^

 NS

--

Rocky Mountain Analytical

4955 Yarrow Street Arvida. CO. BOD02 (303)421-6611 Preservative

Base

^« — ,,, •>._ \

10-10 fiofcr Consultants, Inc.
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SOP NO. 10

FIGURE 2. EXAMPLE OF CHAIN-OF-CUSTODY FORM

ASARCO Incorporated

California Gulch CERCIA Prefect

1019 ElflMri Street, Sims 304, GoWen, CO 80401 Phone:(303)279-2843 FAX: (303) 279-71 38

/ •> ''- \ AMn: / / '\ \

Project

ItmtmtM D W 1 !|lll

£_^_M QBIIVfJI l

Teiml

Oil*

/ / I I /x .

CHAIN OF CUSTODY No. 1110 SAMPLE CONDITIONS

I ftm •*-•—* » —— - •••! M

Z, SAM HitftCl Upoti R^coipt py Svm^HnQ Co * T(^ Mo

mi(7 " • • *•'- / / / ,.'• - ^ '«> "-v - ' f • ? ••• - 'H .

TM«M. X, "" --•••' " ,/'• / / X \

- . : .. . ....' - / >. . ' 4 I

^ ^ * \

/ / 'X " " /

Thn* S«mpte ID/t>4»crtellon ; , i 1

1- I " '.v *

V

•

oBmplft Typo

."'''...-•'' i "'^••^i"'\. "i

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CUSTODY TRANSFCTS PWOH TO SHIPPING R*flnquMw4 by I*1

""-""1 n«r«imri hv itlaMHtt DM* TbM (Ml

4i SQBfVQ rOf Stl

S. llnfWt G0TMM

Uinln* IMJ*

.« n~- r~*«.i«.iMii

T. Svvt Intcct Upon RMctpl by l§feorttocy: Yov No

• CoAtfttonoH

N o. Cofililnws

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/ / ^"'~ ! / / / .? ' ~>\

/ / ""':•-

/? /

Artalyt Is Parameters

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• / / / /

Itamrt.

.

SHIPPIN G DETAILS

AiAftnvjotSMEw sof it nun 10-11 Baker Consultants, Inc.