draft addendum to the feasibility study …\_es12-120\fs-addendum.5-14\rev draft_530.docx 1 daniel...

$: DRAFT ADDENDUM TO THE FEASIBILITY STUDY …\_ES12-120\FS-Addendum.5-14\Rev Draft_530.docx 1 Daniel B. Stephens & Associates, Inc. Addendum to the Feasibility Study Eagle Picher Carefree$
Daniel B. Stephens & Associates, Inc. 6020 Academy NE, Suite 100 • Albuquerque, New Mexico 87109

Addendum to the Feasibility Study

Eagle Picher Carefree Batteries

Superfund Site

Socorro, New Mexico

Prepared for New Mexico Environment Department Ground Water Quality Bureau Santa Fe, New Mexico

May 30, 2014

006590

D a n i e l B . S t e p h e n s & A s s o c i a t e s , I n c .

Table of Contents

Section Page

1. Introduction ............................................................................................................................. 1

2. Remedial Action Objectives .................................................................................................... 2 2.1 Soils................................................................................................................................. 2 2.2 Construction Debris ......................................................................................................... 2 2.3 Groundwater....................................................................................................................2

3. Refinement to Remedial Alternatives...................................................................................... 3 3.1 MNA as a Standalone Remedy or Component in a More Robust Remedy..................... 3 3.2 Alternative Durations ....................................................................................................... 4

3.2.1 Time to Completion for Alternative GW-4............................................................. 4 3.2.2 Time to Completion for Alternatives GW-5,GW-6, and GW-6A........................... 5 3.2.3 Alternative Durations Used in the Cost Estimates................................................ 5

3.3 Additional Alternative GW-6A: Phased Implementation of GW-6.................................... 6

4. 1,4-Dioxane............................................................................................................................. 7 4.1 Advanced Oxidation Process .......................................................................................... 7 4.2 Evaluation of Addition of Contingent AOP....................................................................... 8

4.2.1 Overall Protection ................................................................................................. 8 4.2.2 Compliance with ARARs ...................................................................................... 8 4.2.3 Long-Term Effectiveness...................................................................................... 8 4.2.4 Short-Term Effectiveness ..................................................................................... 8 4.2.5 Reduction of Toxicity, Mobility, or Volume through Treatment ............................. 9

4.3 Site-Specific Action Level for 1,4-Dioxane in Groundwater............................................. 9 4.4 Treatment Costs Associated with 1,4-Dioxane................................................................ 9

List of Figures

Figure

12 GW-6A Phased Focused Pump and Treat with Hydraulic Containment, SWBZ, IWBZ, and DWBZ

13 Concentrations of 1,4-Dioxane in Groundwater, May 2014

P:\_ES12-120\FS-Addendum.5-14\Rev Draft_530.docx i 006591

P:\_ES12-120\FS-Addendum.5-14\Rev Draft_530.docx ii


List of Tables

Table

7 Cost Estimate Summary [Revised]

10 Estimated Time to Completion for Alternatives GW-4, GW-5, GW-6, and GW-6A

List of Appendices

Appendix

C Cost Estimates [Addendum]

006592

P:\_ES12-120\FS-Addendum.5-14\Rev Draft_530.docx 1


Addendum to the Feasibility Study

Eagle Picher Carefree Batteries Superfund Site

Socorro, New Mexico

1. Introduction

At the request of the U.S. Environmental Protection Agency (EPA), Daniel B. Stephens &

Associates, Inc. (DBS&A) has prepared this addendum to the Feasibility Study (FS) for the

Eagle Picher Superfund Site in Socorro, New Mexico. This addendum is to be used in

conjunction with the existing FS, and is not intended to serve as a replacement document.

The purpose of this addendum is to provide additional clarification to conclusions drawn within

the FS. This addendum also provides new information regarding the staging of alternatives and

the evaluation of additional components to the treatment train that may potentially need to be

implemented. The following issues are addressed in this addendum:

Remedial action objectives (RAOs) are refined and clarified.

It is clarified that sediments, as defined by EPA as loose particles of sand, clay, silt, and

other substances that settle at the bottom of a body of water, are not present and that all

fine-grained soils can be treated in a similar manner.

Additional discussion of the monitored natural attenuation (MNA) process is provided,

while remedial alternatives GW-2 and GW-3 are removed from further consideration.

Alternative GW-6A has been developed to detail the implementation of the groundwater

extraction and treatment alternative in phases.

Additional information is provided regarding the durations of the various remedial

alternatives and the basis for these durations.

A site-specific risk calculation for 1,4-dioxane action levels is discussed, and will be

provided when complete.

006593



Costs associated with the future addition of advanced oxidation processes (AOP) to the

treatment train have been developed in the event that 1,4-dioxane concentrations

increase in the future.

2. Remedial Action Objectives

RAOs are narrative statements that are medium-specific or area-specific goals for protecting

human health and the environment. The following subsections provide the revised RAOs that

will be adopted for the Eagle Picher site.

2.1 Soils

In the FS, DBS&A used “soil” to refer to naturally occurring fine-grained materials that were

developed in place as a result of weathering process. The word “sediments” was used to

differentiate the process in which fine-grained materials were deposited in sumps and basins

on-site via process or surface water flows. This discrimination has proven to be unnecessary, in

that all impacted fine-grained materials will be addressed in a uniform manner and hereafter

referred to as “soil.” The soil RAOs are as follow:

Prevent exposure to soils with lead concentrations above the non-residential screening

level of 800 milligrams per kilogram (mg/kg).

Mitigate potential impacts to groundwater from soils, if present.

2.2 Construction Debris

There is one construction debris RAO, as follows:

Prevent the release of asbestos.

2.3 Groundwater

The groundwater RAOs are as follow:

006594



Prevent human exposure to groundwater with contaminant concentrations above the

maximum contaminant levels (MCLs) and above the EPA human health risk level for

1,4-dioxane.

Restore the aquifer in a timely manner such that no contaminants of concern (COCs) are

present at concentrations above MCLs and the EPA human health risk level for

1,4-dioxane.

Prevent plume migration and mitigate further groundwater degradation.

3. Refinement to Remedial Alternatives

3.1 MNA as a Standalone Remedy or Component in a More Robust Remedy

Recognizing that the concept of MNA was not fully developed in the FS, two of the remedial

alternatives (GW-2 [MNA], and GW-3 [MNA with Institutional Controls]) have been rejected.

With that stated, several lines of evidence suggest that MNA is still occurring:

While 1,1,1-trichloroethane (TCA) is present in the vapor phase beneath the buildings,

1,1-dichloroethene (1,1-DCE) and 1,4-dioxane are both present in groundwater. The

reductive dechlorination of TCA results in the generation of 1,1-DCE. 1,4-dioxane is a

well-documented stabilizer used in the manufacturing of TCA. The presence of both

1,1-DCE and 1,4-dioxane in groundwater with only trace detections of TCA indicates that

MNA has almost completely transformed the TCA to its daughter product.

Trichloroethene (TCE) and its daughter product cis-1,2-DCE are also present, further

indicating that anaerobic degradation is occurring.

One of the key indicators that MNA is occurring is the absence of dissolved oxygen

(DO), which generally indicates there has been biological consumption of the DO.

Dechlorination occurs in low oxygen and reductive environments, which are indicated by

a negative value for oxidation/reduction potential (ORP). At the Eagle Picher site, ORP

decreases with depth and is negative in all of the deep wells, as well as the shallow

006595



wells that are highly contaminated. In deep wells, ORP values as low as –500 millivolts

(mV) indicate strongly reducing environments where dechlorination may be taking place.

Used together, all three lines of evidence support the MNA process as being ongoing at this

time. Rejection of MNA as a standalone remedy is based primarily on the need for a very long

time frame to meet RAOs. This time frame was not quantified in the FS, but given the current

plume configuration and concentrations, it can be conservatively estimated as tens of decades.

3.2 Alternative Durations

Particle tracking groundwater models were used during the FS to evaluate well configurations

and pumping rates. Results from these models, summarized below, were used to estimate the

time to completion for Alternatives GW-4, GW-5, and GW-6 (Table 10).

3.2.1 Time to Completion for Alternative GW-4

The following assumptions were used to determine the time to completion for alternative GW-4:

Approximate aquifer hydraulic conductivity of 84 feet per day (ft/d)

Approximate aquifer effective porosity of 15 percent

Approximate groundwater gradient with no remedial pumping of 0.00108 foot per foot

(ft/ft)

Approximate groundwater velocity with no remedial pumping of 220 feet per year (ft/yr)

Remedial time frame 1.5 times longer than predicted by groundwater velocity alone

The assumptions used for GW-4 represent aquifer conditions in which remedial pumping is not

used and the anaerobic water left after injections are completed must flush out at the current

groundwater velocity. To determine the remedial time frame for GW-4, all injections are

assumed to be completed by the end of year 2. These injections would cause anaerobic

conditions in the aquifer. Based strictly on the groundwater velocity without remedial pumping,

it would take approximately 25 years for one pore volume of groundwater to flow through the

006596



plume area. Accounting for inefficient flushing, the remedial time frame is predicted to be about

40 years until the aquifer is restored to beneficial use.

3.2.2 Time to Completion for Alternatives GW-5,GW-6, and GW-6A

The following assumptions were used to determine the time to completion for alternatives

GW-5, GW-6, and GW-6A:

Approximate aquifer hydraulic conductivity of 84 ft/d

Approximate aquifer effective porosity of 15 percent

Approximate groundwater gradient with remedial pumping of 0.00137 ft/ft

Approximate groundwater velocity with remedial pumping of 280 ft/yr

Remedial time frame 1.5 times longer than predicted by groundwater velocity alone

Although the remedial pumping flow rates and locations are different for GW-5 and GW-6, the

resulting groundwater velocity is approximately 280 ft/yr for each scenario. The similar

groundwater velocity for the two alternatives is due to the high transmissivity of the aquifer. For

GW-5, the predicted time to remove one pore volume is 36 years. Accounting for inefficient

flushing (e.g., contaminants getting trapped in unconnected pore spaces), the remedial time

frame is assumed to be retarded by a factor of 1.5, resulting in an additional 18 years (for a total

of 54 years) until the aquifer is restored to beneficial use. For alternative GW-6 and GW-6A, the

predicted time to remove one pore volume of the 50 microgram per liter (µg/L) plume based

strictly on groundwater flow is 20 years. Accounting for inefficient flushing, this same

retardation factor is applied, with the remedial time frame predicted to be about 30 years until

the aquifer is restored to beneficial use. It should be noted that although GW-5 extracts water at

a higher flow rate, it is targeting the current 5 µg/L plume boundary, and therefore has a longer

time frame than the other alternatives.

3.2.3 Alternative Durations Used in the Cost Estimates

Life cycle cost estimates are included in the revised Table 7. Cost estimates for groundwater

alternatives were prepared using a present worth value because they involve initial construction

costs in addition to ongoing operation and maintenance (O&M) and monitoring costs. The

006597



present worth calculations were extended over a period of 30 years because monies associated

with time more than 30 years are nominal relative to overall project costs when rates of inflation

and interest are considered.

Note that in the FS, the time frame used to calculate the present value of alternative GW-4

extended over a period of 10 years, which accounts primarily for active treatment by injections,

and did not take into account subsequent groundwater monitoring and pore flushing. This cost

estimate has been revised to take into account a 30-year time frame.

3.3 Additional Alternative GW-6A: Phased Implementation of GW-6

This addendum adds alternative GW-6A to assess staging installation of extraction wells used in

GW-6 based on plume response to the remedial action (Figure 12). While the complete

alternative GW-6 addresses both the heart of the plume as well as the plume front (defined as

the southern edge of the 5 µg/L contour), alternative GW-6A delays the installation of the

following components until after the first five-year review:

Plume front wells (shown as EWS-01 and EWS-02)

Installation of 2,500 feet of 6-inch and 700 feet of 4-inch conveyance line

Installation of one 250 gallon per minute (gpm) air stripper

Initially, there will be five extraction wells, three shallow and two deep, operating during the first

5 years with a total capacity of 240 gpm. During the initial construction, a building large enough

to house two air strippers will be built, but only one 250-gpm air stripper will be installed.

The efficacy of the initial wells and treatment will be assessed at the five-year review. Five-year

reviews provide an opportunity to evaluate the implementation and performance of a remedy to

determine whether it remains protective and making adequate progress toward the RAOs.

Based on the results of this assessment, a decision will be made on whether or not to install the

two additional shallow wells located at the downgradient portion of the plume. This decision will

be based upon volume of extracted contaminant, groundwater monitoring data, and other

information. If the overall plume and individual well data indicate that the plume is not

006598



increasing in size and that contaminant levels are dropping, the installation of additional

downgradient wells EWS-01 and EWS-02 may be delayed until such time as they are deemed

necessary based on groundwater monitoring results.

The cost estimate for GW-6A assumes that the additional wells, pipeline, and air stripper are

installed in year 6. Delayed installation of these components reduces year 1 capital costs by

approximately $700,000.

4. 1,4-Dioxane

1,4-dioxane, an emerging contaminant commonly used as a stabilizer for chlorinated solvents,

was detected in groundwater subsequent to the completion of the FS. Wells with detections of

1,4-dioxane are show in Figure 13. All detections to date are well below current health advisory

levels (which range from 1 to 0.2 milligrams per liter [mg/L]). Additional sampling is needed to

define the vertical and areal extent of the 1,4-dioxane. Based on the final extent determination,

additional groundwater treatment may be required. That being said, 1,4-dioxane is not

amenable to the treatment train that has been proposed. The best available technology for

removal of 1,4-dioxane at low concentrations is advanced oxidation.

4.1 Advanced Oxidation Process

AOP, also known as peroxone chemistry, uses ozone and hydrogen peroxide to create hydroxyl

free radicals. AOP is well-established and scientifically recognized as a water treatment

method. Hydroxyl free radicals react very rapidly and aggressively to oxidize volatile organic

contaminants (VOCs) and petroleum hydrocarbons into non-hazardous compounds, including

carbon dioxide and water. This oxidation process occurs in the aqueous phase, and does not

increase the temperature or pressure of the water because it occurs at low concentrations.

AOP is advantageous because it is a destruction technology and does not produce a waste

stream requiring disposal. AOP is economically viable at relatively low groundwater

concentrations. If 1,4-dioxane is detected in treatment system effluent after year 5, AOP will be

considered for evaluation and installation as an additional treatment step to supplement the

chosen treatment alternative.

006599



The preliminary design for AOP is based on the potential need for removal of low concentrations

of 1,4-dioxane. The site-specific input parameters used for the design are a treatment flow of

350 to 500 gpm, power, and chemical consumption. The AOP system will be skid mounted,

consisting of preassembled components in order to minimize installation and startup

requirements at the site.

4.2 Evaluation of Addition of Contingent AOP

4.2.1 Overall Protection

Should influent concentrations of 1,4-dioxane warrant treatment after year 5, the contingent

AOP treatment process combined with the selected treatment alternative can provide a cost-

effective and protective addition for remediation. It can provide effective mass removal of

1,4-dioxane and other VOCs at low concentrations.

4.2.2 Compliance with ARARs

The contingent AOP treatment will comply with ARARs, as contaminant levels will decrease with

pumping of the aquifer and 1,4-dioxane will be removed from the treatment system effluent.

4.2.3 Long-Term Effectiveness

Should treatment system effluent concentrations warrant treatment after year 5, the optional

AOP treatment combined with the selected treatment alternative can provide a cost-effective

and protective addition for remediation. It can provide effective mass removal of 1,4-dioxane

and other VOCs at low concentrations. Long-term effectiveness of contingent AOP is

considered high, due to effective destruction of 1,4-dioxane and VOCs at low concentrations,

which will substantially mitigate risks and be effective in the long term.

4.2.4 Short-Term Effectiveness

Contingent AOP will have excellent short-term effectiveness. Destruction of the 1,4-dioxane will

reduce the potential for human contact with 1,4-dioxane within the existing plume boundaries

and in treated effluent.

006600



4.2.5 Reduction of Toxicity, Mobility, or Volume through Treatment

The reduction in toxicity, mobility, and volume over the period of system operation is considered

high.

4.3 Site-Specific Action Level for 1,4-Dioxane in Groundwater

This section will be provided at a later date.

4.4 Treatment Costs Associated with 1,4-Dioxane

If removal of 1,4-dioxane is deemed necessary after the five-year review, an AOP skid would be

added to the end of the planned treatment system. The present worth cost of this alternative by

itself is given in the Appendix C Addendum. Several key assumptions are used to develop the

present worth estimate:

The existing remedial measure has already been installed and will continue to operate

pumping and conveyance infrastructure.

The additional treatment skid would be installed in year 6.

The original building installed to house treatment equipment is sized to accommodate

the later installation of the AOP treatment skid (no new buildings/electrical work

required).

The AOP system is operated for 24 years after installation.

The cost of the AOP system is a standalone cost for equipment, operation, and monitoring of

the AOP skid only, and should be added to GW-5, GW-6, or GW-6A to calculate the total

present worth of a remedial action.

006601

Addendum Figures

006602

EA

EA

EA

EAEA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

ED

ED

!( !(

!(

!(

EA

!(

EA

EA

EA

EA

EAEA

!(

!(

ED

EA

EA

EA

EA

EA

EA

@?@?

@?

@?

@?

@?

@?

Manufacturing buildingNogal Arroyo

Nogal Arroyo

Oliv

e

Newberry

Francisco De Avondo

Mar

ipos

a

Bu

ck W

olfe

J O Gallegos

Loma Encantada

Harold

Fatima

Newberry

Ditch

Lero

y

College

Lop

ezv

ille

Bullock

Sean

Canyon

California

UV408

£¤60

§̈¦25

550

50

Eagle Picher property

Wastewaterimpoundments

SumpLagoons

Historical facility

Length: 2,500'6" PVC



Length: 700'4" PVC

Length: 750'6" PVC

SW-7

SW-6

SW-4IW-1

SW-5

SW-3

SW-2

SW-1

Lopez

Olsen

OMW-9

OMW-8

OMW-6

OMW-5

OMW-4

OMW-3

Miller

Bailey

EP-UNK

Hooper

EID-LL

OMW-14

OMW-13

OMW-12

OMW-11

OMW-10

NMED-1

SFSL-3

SFSL-2

SFSL-1

Bushman

Alice EastAlice West

Sedillo Park East

OMW-7

Knight

COS-LFNMED-2

SW-8

DW-6

DW-5 DW-4

EWD-0260 GPM

EWD-0160 GPM

EWS-0540 GPM

EWS-0340 GPM

EWS-0270 GPM EWS-01

70 GPM

EWS-0440 GPM

Treatment compoundCity property

Phase 2

JN ES12.0120.005/29/2014

EAGLE PICHER CAREFREEBATTERIES SUPERFUND SITE

SOCORRO, NEW MEXICOGW-6A Phased Focused Pump and Treat with

Hydraulic Containment, SWBZ, IWBZ, and DWBZDaniel B. Stephens & Associates, Inc.

Figu

re 12

0 500 1,000 Feet

ExplanationED Water supply well

EA Monitor well

!( Domestic well

@? Injection well

@? Extraction well

Extraction conveyance

Total TCE (trichloroethene) above 5 µg/L

Total TCE above 50 µg/L

\\ss5abq\DataS\Projects\ES12.0120_Eagle_Picher_RI_FS\GIS\MXDs\Reports\FS_Report_03_2014\Fig12_GW-6b_Focused_Pump_and_Treat_with_Hydraulic_Containment.mxd

Base Map Source: Aerial photograph provided by NAIP, 2011

<0.5TCE concentration (µg/L)

OMW-36.7

TCE below reporting limit(6.7) Field screening result

Designation

N

Notes: 1. Pumping rate 350 gpm total2. 7 extraction wells3. 2 Treated water injection wells

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

EA

ED

ED

!(!(

!(

!(

EA

!(

EA

EA

EA

EA

EAEA

!(

!(

ED

EA

EA

@?@?

Length: 1,200'PVC: 6"

Length: 750'6" PVC

SW-4IW-1

OMW-12

OMW-7

EWD-01GPM: 60

EWS-04GPM: 40

Treatment compound

City property

SEE INSET

INSET

0 150 300 Feet

Treatment compound includes influent and effluentstorage tanks, building (30' x 60'), treatment equipment,power, and site improvements.

Notes:

006603

EA

EA

EA

EA

EA

ED

!(

ED

!(

EA

EA

EA

EA

Manufacturing building

?

?

?

?

?

?

??

Nogal Arroyo

Nogal Arroyo

Oliv

e

Newberry

Francisco De Avondo

Mar

ipos

a

Bu

ck W

olfe

J O Gallegos

Loma Encantada

Harold

Fatima

Newberry

Lero

y

College

Lop

ezv

ille

Bullock

Sean

Canyon

California

UV408

£¤60

§̈¦25

Wastewater impoundments

Sump

Lagoons

Historical facility

SW-53.0

SW-31.0

OMW-632

Olsen1.0

OMW-8ND

KnightND

OMW-10ND

OMW-7ND

Eagle PicherND

OMW-12ND

Alice West5.0

SW-6 8.0

SW-8ND

JN ES12.0120.005/30/2014

EAGLE PICHER CAREFREE BATTERIES SUPERFUND SITESOCORRO, NEW MEXICOConcentrations of 1,4-Dioxane in Groundwater

May 2014Daniel B. Stephens & Associates, Inc.

N

Figu

re 13

0 500 1,000 Feet

ExplanationED Water supply well

EA Monitor well

!( Domestic well

Total 1,4-dioxane above 1.0 µg/L

Total 1,4-dioxane above 6.0 µg/L

Site boundary

S:\Projects\ES12.0120_Eagle_Picher_RI_FS\GIS\MXDs\Reports\FS_Report_03_2014\Fig13_dioxane_2014_5.mxd

1,4-dioxane concentration (µg/L)OMW-6

321,4-dioxane below reporting limitND

Base Map Source: Aerial photograph provided by NAIP, 2011

Designation

006604

Addendum Tables

006605

P:\_ES12-120\FS-Addendum.5-14\T07_CostSummary.doc


Table 7. Cost Estimate Summary

Cost ($)

Alternative Description Initial

Capital Cost

First-Year O&M and Future

Capital Cost

Years 2–5 Annual O&M and

Capital Cost

Year 6 O&M and Capital

Cost

Years 7–30 Annual O&M and

Capital Cost Post-Closure

Cost

Life-Cycle Cost Period

(years)

Total Present Worth

($)

Sediment/Soil

S-1 No Action 0 0 0 0 0 0 NA 0

S-2 Excavation and On-Site Capping 339,000 24,000 11,000 11,000 11,000 37,000 30 661,000

S-3 Excavation and Off-Site Disposal 1,601,000 26,000 0 0 0 37,000 1 1,627,000

Construction Debris

CD-1 No Action 0 0 0 0 0 0 NA 0

CD-2 Abatement and Disposal 105,000 0 0 0 0 15,000 NA 120,000

Groundwater

GW-1 No Action 0 0 0 0 0 0 NA 0

GW-2 Monitored Natural Attenuation (MNA) 0 99,000 99,000 99,000 99,000 341,000 30 2,900,000

GW-3 MNA and Institutional Controls (ICs) 54,000 123,000 123,000 123,000 123,000 377,000 30 3,620,000

GW-4 Enhanced Reductive Dechlorination (ERD), MNA, and ICs

20,208,000 131,000 5,245,000 131,000 131,000 3,156,000 30 31,208,000 a

GW-5 Pump and Treat with Hydraulic Containment, ERD, MNA, and ICs

11,059,000 584,000 2,632,000 481,000 539,000 1,788,000 30 27,471,000

GW-6 Focused Pump and Treat with Hydraulic Containment, MNA, and ICs

2,985,000 b 585,000 482,000 482,000 529,000 831,000 30 16,595,000

GW-6A Phased construction of GW-6 2,284,000 c 523,000 420,000 1,425,000 d 529,000 831,000 30 16,490,000

Contingent AOP treatment for 1,4-dioxane 0 0 0 976,000 136,000 0 25 4,040,000

Major assumptions: Costs are in 2013 dollars. Pipeline lengths are plan distances only and have not been adjusted for site topography. No costs are included for property and/or right-of-way acquisition. There will be reasonable site access for all facilities. Summary costs have been rounded up to the nearest $1,000. Costs are feasibility level estimates (+50%/–30% per EPA guidance). No cost return has been included for beneficial use of treated water. Advanced oxidation process (AOP) is installed during year 6 if 1,4-dioxane is present and

treatment is needed in addition to the selected treatment alternative.

References: U.S. EPA, 2000 City of Albuquerque 2009 cost data RS Means heavy construction cost data, 2013 Vendor quotes Professional judgment Recent project bids

a Estimated costs have increased from FS report due to increase in remedial time frame.

b Installation of all 7 extraction wells in year 1.

c Capital costs for all components except EWS-01, EWS-02, one air stripper, and conveyance line from 2 wells to treatment compound.

d Includes costs for additional extraction wells EWS-01 and EWS-02, air stripper, and conveyance line.

006606

P:\_ES12-120\FS-Addendum.5-14\T10_TimeCmpltn.doc


Table 10. Estimated Time to Completion for Alternatives GW-4, GW-5, GW-6, and GW-6A

Alternative Estimated Time to Completion

(years)

GW-4 40

GW-5 54

GW-6 30

GW-6A 30

006607

Appendix C Addendum

Cost Estimates

006608

Alternative DescriptionInitial

Capital CostFirst Year O&M and

Capital Cost

Years 2 ‐ 5 Annual O&M and Capital

Cost

Year 6 Annual O&M and Capital

Cost

Years 7 ‐ 30 Annual O&M and Capital

Cost Post Closure CostsLife Cycle Cost Period

TotalPresent Worth

Construction Debris (Lead Paint, Asbestos, Construction Debris)

CD - 1 No Action $0 $0 $0 $0 $0 $0 NA $0

CD - 2 Abatement and Disposal $105,000 $0 $0 $0 $0 $15,000 NA $120,000

Soil

S - 1 No Action $0 $0 $0 $0 $0 $0 NA $0

S - 2 Excavate, Deposit in Lagoon, Stabilize and Cap in Place $339,000 $24,000 $11,000 $11,000 $11,000 $37,000 30 $661,000

S - 3 Excavate and Offsite Disposal $1,601,000 $26,000 $0 $0 $0 $37,000 1 $1,627,000

Ground Water

GW - 1 No Action $0 $0 $0 $0 $0 $0 NA $0

GW - 2 Monitored Natural Attenuation (MNA) $0 $99,000 $99,000 $99,000 $99,000 $341,000 30 $2,900,000

GW - 3 MNA, Institutional Controls (ICs) $54,000 $123,000 $123,000 $123,000 $123,000 $377,000 30 $3,620,000

GW - 4 Enhanced Reductive Dechlorination (ERD), MNA, ICs $20,208,000 $131,000 $5,245,000 $131,000 $131,000 $3,156,000 30 $31,208,000 D

GW - 5 Pump and Treat, ERD, MNA, ICs $11,059,000 $584,000 $2,632,000 $481,000 $539,000 $1,788,000 30 $27,471,000

GW - 6 Focused Pump and Treat with Hydraulic Containment, MNA, ICs $2,985,000 A $585,000 $482,000 $482,000 $529,000 $831,000 30 $16,595,000

GW - 6A Phased Construction of Focused Pump and Treat with Hydraulic Containment, MNA, ICs $2,284,000 B $523,000 $420,000 $1,425,000 C $529,000 $831,000 30 $16,490,000

Contingent AOP Treatment for 1,4-dioxane $0 $0 $0 $976,000 $136,000 $0 25 $4,040,000

Major Assumptions:Costs are in 2013 dollars.Pipeline lengths are plan distances only and have not been adjusted for site topography.No costs are included for property and/or right‐of‐way acquisition.There will be reasonable site access for all facilities.Summary costs have been rounded up to the nearest $1,000.Costs are feasibility level estimates (+50%/‐30% per EPA guidance).No cost return has been included for beneficial use of treated water.Advanced Oxidation Process (AOP) is installed durning year 6 if 1,4‐dioxane is present and treatment is needed in addition to the selected treatment alternative.

NotesA. Installation of all 7 extraction wells in year 1.B. Capital costs for all components except EWS-01, EWS-02, one air stripper, and conveyance line from two wells to treatment compound.C. Includes costs for additional extraction wells EWS-01 and EWS-02, conveyance line, and air stripper.D. Costs increase from Final FS due to increase of remedial timeframe.

ReferencesUS EPA "A Guide to Developing and Documenting Cost Estimates During the Feasibility Study" (2000)COA 2009 Cost Data RS Means Heavy Construction Cost Data, 2013Vendor QuotesProfessional JudgmentRecent Project Bids

Eagle Picher Carefree Batteries Superfund Site

006609

COST ESTIMATE SUMMARY 2

PROJECT: Eagle Picher Carefree Batteries Superfund SiteSITE: Socorro, New MexicoALTERNATIVE: 6A IC, MNA, P&T, ERDDESCRIPTION: Monitored Natural Attenuation, Institutional Controls,

Phased Focused Pump and Treat and Phased ASPREPARED BY: DBS&APROJECT NUMBER: ES12.0120

Capital CostConstruction 1,235,050$ G&A 177,158$ Profits 59,053$ Contingency 354,315$ Bonding & Insurance 23,621$ New Mexico Gross Receipts Tax 127,908$ Project Management 70,863$ Design 141,726$ Construction Management 94,484$ Total Capital Cost 2,284,000$

Year 1 Operations and MaintenanceSystem Startup 13,950$ Routine System O&M 166,189$ Reporting (Annual Report and Construction Completion Report) 37,000$ Professional Services 45,599$ MNA and ICs 123,000$ G&A 39,411$ Profit 13,137$ New Mexico Gross Receipts Tax 18,720$ Contingency 65,684$ Total Year 1 Operations and Maintenance 523,000$

Annual Operations and Maintenance Cost: Years 2-5Routine System O&M 132,867$ Reporting (Annual Report and Construction Completion Report) 28,300$ Professional Services 33,845$ MNA and ICs 123,000$ G&A 29,252$ Profit 9,751$ New Mexico Gross Receipts Tax 13,895$ Contingency 48,753$ Total Annual Operations and Maintenance Cost: Years 2-5 420,000$

Year 6 Capital CostConstruction 372,191$ G&A 55,829$ Profits 18,610$ Contingency 111,657$ Bonding & Insurance 26,519$ New Mexico Gross Receipts Tax 41,667$ Project Management 70,863$ Design 141,726$

006610

Construction Management 94,484$ Total Capital Cost 934,000$

Year 6 Operations and MaintenanceRoutine System O&M 166,894$ Reporting (Annual Report and Construction Completion Report) 28,300$ Professional Services 43,084$ MNA and ICs 123,000$ G&A 37,237$ Profit 12,412$ New Mexico Gross Receipts Tax 17,687$ Contingency 62,061$ Total Year 6 Operations and Maintenance 491,000$

Annual Operations and Maintenance Cost: Years 7-30Routine System O&M 166,894$ Reporting (Annual Report and Construction Completion Report) 28,300$ Professional Services 40,991$ MNA and ICs 123,000$ G&A 35,428$ Profit 11,809$ New Mexico Gross Receipts Tax 16,828$ Contingency 59,046$ Total Annual Operations and Maintenance Cost: Years 7-30 482,000$

Post Closure CostClosure Reporting 18,340$ Equipment Demobilization and Well Abandonment 396,750$ Professional Services 120,376$ G&A 80,320$ Profit 26,773$ New Mexico Gross Receipts Tax 38,152$ Contingency 133,867$ Bonding & Insurance 16,292$ Total Post Closure Cost 831,000$

Present Value of Capital and O&M for 30 YearsPV 16,490,000$

NOTES:1 - Professional Services includes Project Management, Design/Technical Support, and Construction Management.2 - The cost estimates provided are to an accuracy of +50 percent to -30 percent and are prepared for the sole purpose of alternative comparison. The alternative cost estimates are in 2013 dollars and are based on conceptual design from information available at the time of this study. The actual cost of the project would depend on the final scope and design of the selected remedial action, the schedule of implementation, competitive market conditions, and other variables.

006611

COST ESTIMATE DETAILSPROJECT: Eagle Picher Carefree Batteries Superfund SiteSITE: Socorro, New MexicoALTERNATIVE: 6A IC, MNA, P&T, ERDDESCRIPTION: Monitored Natural Attenuation, Institutional Controls, Phased Focused Pump and Treat, and Phases ASPREPARED BY: DBS&APROJECT NUMBER: ES12.0120

Assumptions1. The accuracy of the cost estimate is +50%/-30%2. See "Conceptual Design" spreadsheet for basis of cost estimate assumptions.3. The number of new nested monitoring wells required to be installed 0 wells included under groundwater monitoring4. Number of deep groundwater extraction wells to be installed = 25. Number of shallow groundwater extraction wells to be installed = 5 wells6. Number of piezometers to be installed = 0 piezometers included under groundwater monitoring7. Number of injection deep wells to be installed= 0 wells8. Number of injection shallow wells to be installed= 0 wells9. Phase I - Assume that the duration of construction is 363 working days (includes 90 working days for treatment system construction and installation)9A. Phase II - Assume that the duration of construction is 62 working days10. The number of wells to be sampled for VOCs is 0 wells per round included under groundwater monitoring11. The number of wells on-site to be abandoned for post-closure is 45 wells includes new extraction wells only

12. The G&A rate is 15%EPA 540-R-00-002 OSWER 9355.0-75, A Guide to Developing and Documenting Cost Estimates During the Feasibility Study, 2000

13. The profit rate is 5%EPA 540-R-00-002 OSWER 9355.0-75, A Guide to Developing and Documenting Cost Estimates During the Feasibility Study, 2001

14. The Bonding & Insurance rate is 2% RS Means Heavy Construction Cost Data 2013 01 31 13.90 0100

Summarized Capital and Detailed Operations and Maintenance Costs

YEAR 1 - CAPITAL COSTItem/Activity Qty Unit Unit Cost Cost Comments and ReferencesConstructionTemporary FacilitiesTrailer, equipment and furnishings w/ AC 12 MON 659.50$ 7,914$ RS Means Heavy Construction Cost Data 2013 01 52 13.20 0250 Chemical Portable toilets (2) 12 MON 366.00$ 4,392$ RS Means Heavy Construction Cost Data 2013 01 54 33.40 6410Storage trailer (2, 20 x 8 ft) 12 MON 163.00$ 1,956$ RS Means Heavy Construction Cost Data 2013 01 52 13.20 1250Electrical usage 12 100 SF/MON 51.50$ 618$ RS Means Heavy Construction Cost Data 2013 01 51 13.80 0600Site security (1 watchman; 24 hrs/day) 5040 HR 27.50$ 138,600$ RS Means Heavy Construction Cost Data 2013 01 56 32.50 0010Security fencing (6' tall; chain link) 800 LF 7.00$ 5,600$ RS Means Heavy Construction Cost Data 2013 01 56 26.50 0200Remediation ConstructionTreatment Compound 1 LS 261,718.15$ 261,718$ Conveyance Piping, 3" PVC 0 LF 17.97$ -$ Conveyance Piping, 4" PVC 0 LS 25.66$ -$ Conveyance Piping, 6" PVC 4250 LS 30.82$ 130,981$ Does not include 7750 as included on the conceptual design sheetDeep Extraction Wells 2 ea 63,085.00$ 126,170$

Shallow Extraction Wells 3 ea 47,511.00$ 142,533$ Injection Wells 0 well -$ -$ Influent Equalization Tank and Foundation 16,000 gal 2.50$ 40,000$ provides 36-minutes of storageFinished Water Tank and Foundation 16,000 gal 2.50$ 40,000$ provides 36-minutes of storage

006612

Low-Profile Tray Air Stripper Treatment Systems - Two 250 gpm skids with piping, valves, pumps, and ancillary equipment 1 LS 280,568.00$ 280,568$

Assume 250 gpm QED 24.2EZ Tray Air stripper (controls, piping, skid, blower, influent and effluent pumps)

Subtotal, Year 1 - Capital Cost 1,181,050$

G&A 15% of 1,181,050$ 177,158$ Profit 5% of 1,181,050$ 59,053$ Contingency (Scope 15% + Bid 15%) 30% of 1,181,050$ 354,315$ Bonding& Insurance 2% of 1,181,050$ 23,621$ Subtotal, Year 1 - Capital Cost 1,795,196$

New Mexico Gross Receipts Tax 7.125% of 1,795,196$ 127,908$ Subtotal, Year 1 - Capital Cost 1,923,104$

Administration and Professional ServicesProject Management 6% of 1,181,050$ 70,863$ Design 12% of 1,181,050$ 141,726$ Construction Management 8% of 1,181,050$ 94,484$ Subtotal, Year 1 - Capital Cost 2,230,177$

Total, Year 1 - Capital Cost 2,230,177$

YEAR 1 OPERATIONS AND MAINTENANCEItem/Activity Qty Unit Unit Cost Cost CommentsSystem StartupLabor - Water treatment operator 100 hr 19.10$ 1,910$ Unit price source: 2006 Community Water System Survey EPA- Table 84Labor - Engineer 70 hr 122.00$ 8,540$ Assume 7 days for startup, 10 hrs/dayAir Sample Analysis 6 sample 130.00$ 780$ quarterly sampling to prove de minimis VOC emissions, plus 2 QA/QCWater Sample Analysis 6 sample 120.00$ 720$ 3 sets, VOC analysis for infl/effl, incl data valid.Startup Equipment Rental 2 week 1,000.00$ 2,000$ water quality monitoring for pretreatment effectivenessTotal System Startup 13,950$

Routine System O&MLabor - Water treatment operator 1248 hr 19.10$ 23,837$ Unit price source: 2006 Community Water System Survey EPA- Table 84Labor - Engineer 624 hr 122.00$ 76,128$ 100% of the Tech time for first yearWater Sample Analysis 29 sample 120.00$ 3,480$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCAir Sample Analysis 29 sample 130.00$ 3,770$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCProcess chemicals 1 LS 26,220.00$ 26,220$ Anti-scalant and Sodium HypochloriteO&M Supplies and Cleaning Subcontractor 1 LS 4,000.00$ 4,000$ 3 x year air stripper tray cleaning by subcontractor

Electricity 359,423 kw-hr 0.08$ 28,754$

Air Stripper: (1) 10 hp blower + (1) 5 hp pump per unit, 5 wells @ 3 hp +2 process pumps @ 7.5 hp full-time operations+ 10 for HVAC, lights, etc.; Socorro Electrical Coop rates

Total Routine System O&M 166,189$

Reporting (Annual Report and Construction Completion Report)Labor - Engineer/Hydrogeologist 220 hr 122.00$ 26,840$ DBS&A rates 2013Labor - Editor 80 hr 92.50$ 7,400$ DBS&A rates 2013Labor - CAD Technician 40 hr 69.00$ 2,760$ DBS&A rates 2013Subtotal Annual Reporting 37,000$ Subtotal Year 1 Operations and Maintenance 217,139$

006613

Project Management 6% of 217,138.62$ 13,028$ Technical Support 15% of 217,138.62$ 32,571$ Subtotal Year 1 Operations and Maintenance 262,738$

G&A 15% of 262,737.74$ 39,411$ Profit 5% of 262,737.74$ 13,137$ New Mexico Gross Receipts Tax 7.125% of 262,737.74$ 18,720$ Contingency 25% of 262,737.74$ 65,684$ Subtotal Year 1 Operations and Maintenance 399,690$

TOTAL YEAR 1 OPERATIONS AND MAINTENANCE COST 399,690$

ANNUAL OPERATIONS AND MAINTENANCE COST - YEARS 2-5 (ANNUAL COSTItem/Activity Qty Unit Unit Cost Cost CommentsRoutine System O&MLabor - Water treatment operator 832 hr 19.10$ 15,891$ Unit price source: 2006 Community Water System Survey EPA- Table 84Labor - Engineer 416 hr 122.00$ 50,752$ 50% of the Tech timeAir Sample Analysis 29 sample 130.00$ 3,770$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCWater Sample Analysis 29 sample 120.00$ 3,480$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCProcess chemicals 1 LS 26,220.00$ 26,220$ Anti-scalant and Sodium HypochloriteO&M Supplies and Cleaning Subcontractor 1 LS 4,000.00$ 4,000$ Annual air stripper tray cleaning by subcontractor


Air Stripper: (1) 10 hp blower + (1) 5 hp pump per unit, 5 wells @ 3 hp +2 process pumps @ 7.5 hp full-time operations+ 10 for HVAC, lights, etc.; Socorro Electrical Coop rates


Reporting (Annual Reports)Labor - Engineer/Hydrogeologist 160 hr 122.00$ 19,520$ DBS&A rates 2013Labor - Editor 80 hr 92.50$ 7,400$ DBS&A rates 2013Labor - CAD Technician 20 hr 69.00$ 1,380$ DBS&A rates 2013Total Reporting 28,300$ Subtotal Year 2-5 Operations and Maintenance 161,167$

Project Management 6% of 161,167.02$ 9,670$ Technical Support 15% of 161,167.02$ 24,175$

Subtotal Year 2-5 Operations and Maintenance 195,012$

G&A 15% of 195,012.10$ 29,252$ Profit 5% of 195,012.10$ 9,751$ New Mexico Gross Receipts Tax 7.125% of 195,012.10$ 13,895$ Contingency 25% of 195,012.10$ 48,753$ Subtotal Year 2-5 Operations and Maintenance 296,662$

TOTAL ANNUAL COST: YEARS 2-5 OPERATIONS AND MAINTENANCE COST 296,662$

YEAR 6 - CAPITAL COSTItem/Activity Qty Unit Unit Cost Cost Comments and ReferencesConstructionTemporary FacilitiesTrailer, equipment and furnishings w/ AC 2 MON 659.50$ 1,319$ RS Means Heavy Construction Cost Data 2013 01 52 13.20 0250 Chemical Portable toilets (2) 2 MON 366.00$ 732$ RS Means Heavy Construction Cost Data 2013 01 54 33.40 6410Storage trailer (2, 20 x 8 ft) 2 MON 163.00$ 326$ RS Means Heavy Construction Cost Data 2013 01 52 13.20 1250

006614

Electrical usage 2 100 SF/MON 51.50$ 103$ RS Means Heavy Construction Cost Data 2013 01 51 13.80 0600Site security (1 watchman; 24 hrs/day) 840 HR 27.50$ 23,100$ RS Means Heavy Construction Cost Data 2013 01 56 32.50 0010Security fencing (6' tall; chain link) 120 LF 7.00$ 840$ RS Means Heavy Construction Cost Data 2013 01 56 26.50 0200Remediation ConstructionTreatment Compound 0 LS -$ -$ Conveyance Piping, 3" PVC 0 LS 17.97$ -$ Conveyance Piping, 4" PVC 1000 LS 25.66$ 25,659$ Conveyance Piping, 6" PVC 2500 LS 30.82$ 77,048$ Deep Extraction Wells 0 ea 63,085.00$ -$ Shallow Extraction Wells 2 ea 47,511.00$ 95,022$ Injection Wells 0 well -$ -$ Influent Equalization Tank and Foundation 0 gal 2.50$ -$ provides 36-minutes of storageFinished Water Tank and Foundation 0 gal 2.50$ -$ provides 36-minutes of storageLow-Profile Tray Air Stripper Treatment Systems - One 250 gpm skid with piping, valves, pumps, and ancillary equipment 1 LS 148,043.00$ 148,043$

Assume 250 gpm QED 24.2EZ Tray Air stripper (controls, piping, skid, blower, influent and effluent pumps)

Subtotal, Year 6 - Capital Cost 372,191$

G&A 15% of 372,191$ 55,829$ Profit 5% of 372,191$ 18,610$ Contingency (Scope 15% + Bid 15%) 30% of 372,191$ 111,657$ Bonding& Insurance 7% of 372,191$ 26,519$ Subtotal, Year 6 - Capital Cost 584,806$

New Mexico Gross Receipts Tax 7.125% of 584,806$ 41,667$ Subtotal, Year 6 - Capital Cost 626,473$

Administration and Professional ServicesProject Management 6% of 1,181,050$ 70,863$ Design 12% of 1,181,050$ 141,726$ Construction Management 8% of 1,181,050$ 94,484$ Subtotal, Year 6 - Capital Cost 933,546$

Total, Year 6 - Capital Cost 933,546$

YEAR 6 - OPERATIONS AND MAINTENANCE COST Item/Activity Qty Unit Unit Cost Cost Commentsp g ( y)System StartupLabor - Water treatment operator 60 hr 19.10$ 1,146$ Unit price source: 2006 Community Water System Survey EPA- Table 84Labor - Engineer 60 hr 122.00$ 7,320$ Assume 7 days for startup, 10 hrs/dayAir Sample Analysis 6 sample 130.00$ 780$ quarterly sampling to prove de minimis VOC emissions, plus 2 QA/QCWater Sample Analysis 6 sample 120.00$ 720$ 3 sets, VOC analysis for infl/effl, incl data valid.Startup Equipment Rental 0 week 1,000.00$ -$ water quality monitoring for pretreatment effectivenessTotal System Startup 9,966$

Routine System O&MLabor - Water treatment operator 832 hr 19.10$ 15,891$ Unit price source: 2006 Community Water System Survey EPA- Table 84Labor - Engineer 416 hr 122.00$ 50,752$ 50% of the Tech timeAir Sample Analysis 29 sample 130.00$ 3,770$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCWater Sample Analysis 29 sample 120.00$ 3,480$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCProcess chemicals 1 LS 43,700.00$ 43,700$ Anti-scalant and Sodium Hypochlorite

006615

O&M Supplies and Cleaning Subcontractor 2 LS 4,000.00$ 8,000$ Annual air stripper tray cleaning by subcontractor


Air Stripper: (2) 10 hp blowers + (2) 5 hp pumps per unit, 7 wells @ 3 hp+ 2 process pumps @ 7.5 hp full-time operations+ 10 for HVAC, lights, etc.; Socorro Electrical Coop rates


Reporting (Annual Reports)Labor - Engineer/Hydrogeologist 160 hr 122.00$ 19,520$ DBS&A rates 2013Labor - Editor 80 hr 92.50$ 7,400$ DBS&A rates 2013Labor - CAD Technician 20 hr 69.00$ 1,380$ DBS&A rates 2013Total Reporting 28,300$ Subtotal Year 6 Operations and Maintenance 205,160$

Project Management 6% of 205,160.15$ 12,310$ Technical Support 15% of 205,160.15$ 30,774$

Subtotal Year 6 Operations and Maintenance 248,244$

G&A 15% of 248,243.78$ 37,237$ Profit 5% of 248,243.78$ 12,412$ New Mexico Gross Receipts Tax 7.125% of 248,243.78$ 17,687$ Contingency 25% of 248,243.78$ 62,061$ Subtotal Year 6 Operations and Maintenance 377,641$

TOTAL YEAR 6 OPERATIONS AND MAINTENANCE COST 377,641$

ANNUAL OPERATIONS AND MAINTENANCE COST - YEARS 7-30 (ANNUAL COSTItem/Activity Qty Unit Unit Cost Cost CommentsRoutine System O&MLabor - Water treatment operator 832 hr 19.10$ 15,891$ Unit price source: 2006 Community Water System Survey EPA- Table 84Labor - Engineer 416 hr 122.00$ 50,752$ 50% of the Tech timeAir Sample Analysis 29 sample 130.00$ 3,770$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCWater Sample Analysis 29 sample 120.00$ 3,480$ monthly infl/effl sampling for permit, plus 20% extra for QA/QCProcess chemicals 1 LS 43,700.00$ 43,700$ Anti-scalant and Sodium HypochloriteO&M Supplies and Cleaning Subcontractor 2 LS 4,000.00$ 8,000$ Annual air stripper tray cleaning by subcontractor


Air Stripper: (2) 10 hp blowers + (2) 5 hp pumps per unit, 7 wells @ 3 hp+ 2 process pumps @ 7.5 hp full-time operations+ 10 for HVAC, lights, etc.; Socorro Electrical Coop rates


Reporting (Annual Reports)Labor - Engineer/Hydrogeologist 160 hr 122.00$ 19,520$ DBS&A rates 2013Labor - Editor 80 hr 92.50$ 7,400$ DBS&A rates 2013Labor - CAD Technician 20 hr 69.00$ 1,380$ DBS&A rates 2013Total Reporting 28,300$ Subtotal Year 7-30 Operations and Maintenance 195,194$

Project Management 6% of 195,194.15$ 11,712$ Technical Support 15% of 195,194.15$ 29,279$ Construction Management 0% of 195,194.15$ -$ Subtotal Year 7-30 Operations and Maintenance 236,185$

G&A 15% of 236,184.92$ 35,428$ Profit 5% of 236,184.92$ 11,809$

006616

New Mexico Gross Receipts Tax 7.125% of 236,184.92$ 16,828$ Contingency 25% of 236,184.92$ 59,046$ Subtotal Year 7-30 Operations and Maintenance 359,296$

TOTAL ANNUAL COST: YEARS 7-30 OPERATIONS AND MAINTENANCE COST 359,296$

006617

POST CLOSURE COSTItem/Activity Qty Unit Unit Cost Cost CommentsClosure ReportingLabor - Engineer/Hydrogeologist 100 hr $122.00 12,200$ DBS&A rates 2013Labor - Editor 50 hr $95.20 4,760$ DBS&A rates 2013Labor - CAD Technician 20 hr $69.00 1,380$ DBS&A rates 2013Total Closure Reporting 18,340$

Equipment Demobilization and Well AbandonmentWell Abandonment 45 well 5,000.00$ 225,000$ Vendor quote price per well November 2013Equipment Demobilization leave building in place 1 LS 120,000.00$ 120,000$ Subtotal Equipment Demobilization and Well Abandonment 345,000$

Site Work Allowance 10% of 345,000.00$ 34,500$ Mechanical Allowance 0% of 345,000.00$ -$ Instrumentation and Controls Allowance 0% of 345,000.00$ -$ Electrical Allowance 5% of 345,000.00$ 17,250$ Miscellaneous Equipment Allowance 0% of 345,000.00$ -$ Total Equipment Demobilization and Well Abandonment 396,750$ Subtotal Post-Closure Cost 415,090$

Project Management 6% of 415,090.00$ 24,905$ Technical Support 15% of 415,090.00$ 62,264$ Construction Management 8% of 415,090.00$ 33,207$ Subtotal Post-Closure Cost 535,466$

G&A 15% of 535,466.10$ 80,320$ Profit 5% of 535,466.10$ 26,773$ New Mexico Gross Receipts Tax 7.125% of 535,466.10$ 38,152$ Contingency 25% of 535,466.10$ 133,867$ Subtotal Post-Closure Cost 814,578$

Bonding& Insurance 2% of 814,577.80$ 16,292$ TOTAL POST CLOSURE COST 830,869$

006618

PRESENT WORTH ANALYSISPROJECT: Eagle Picher Carefree Batteries Superfund SiteSITE: Socorro, New MexicoALTERNATIVE: 6A IC, MNA, P&T, ERDDESCRIPTION: Monitored Natural Attenuation, Institutional Controls, Enhanced Reductive Dechlorination, Phased Focused Pump and TreatPREPARED BY: DBS&APROJECT NUMBER: ES12.0120

Assumptions1. Real Discount Rate 0.80%Source: OMB Ciruclar No. A-94, Jan. 2013 version of Appendix C obtained from http://www.whitehouse.gov/omb/circulars/a094/a94_appx-c.html2. Assumes Total PV earns interest for an entire year (12 months), compound annually.3. Calculation made with 2013 "real" dollars for entire period.

Present Worth Analysis

E A B C=A+B A*E B*E C*E

Elapsed Time Year

Discount Factor at

0.8% Capital Cost O&M Cost Total Cost

Total PV Capital Costs

at 0.8%

Total PV O&M Costs at

0.8%Total PV Costs

at 0.8%0 2014 1.000 2,284,000$ 2,284,000$ 2,284,000$ -$ 2,284,000$ 1 2015 0.992 523,000$ 523,000$ -$ 518,849$ 518,849$ 2 2016 0.984 420,000$ 420,000$ -$ 413,360$ 413,360$ 3 2017 0.976 420,000$ 420,000$ -$ 410,079$ 410,079$ 4 2018 0.969 420,000$ 420,000$ -$ 406,825$ 406,825$ 5 2019 0.961 420,000$ 420,000$ -$ 403,596$ 403,596$ 6 2020 0.953 934,000$ 491,000$ 1,425,000$ 890,397$ 468,078$ 1,358,475$ 7 2021 0.946 482,000$ 482,000$ -$ 455,851$ 455,851$ 8 2022 0.938 16,000$ 482,000$ 498,000$ 15,012$ 452,234$ 467,245$ 9 2023 0.931 482,000$ 482,000$ -$ 448,644$ 448,644$ 10 2024 0.923 15,000$ 482,000$ 497,000$ 13,851$ 445,084$ 458,935$ 11 2025 0.916 482,000$ 482,000$ -$ 441,551$ 441,551$ 12 2026 0.909 482,000$ 482,000$ -$ 438,047$ 438,047$ 13 2027 0.902 482,000$ 482,000$ -$ 434,570$ 434,570$ 14 2028 0.894 482,000$ 482,000$ -$ 431,121$ 431,121$ 15 2029 0.887 482,000$ 482,000$ -$ 427,700$ 427,700$ 16 2030 0.880 16,000$ 482,000$ 498,000$ 14,085$ 424,305$ 438,390$ 17 2031 0.873 482,000$ 482,000$ -$ 420,938$ 420,938$ 18 2032 0.866 482,000$ 482,000$ -$ 417,597$ 417,597$ 19 2033 0.860 482,000$ 482,000$ -$ 414,283$ 414,283$ 20 2034 0.853 482,000$ 482,000$ -$ 410,995$ 410,995$ 21 2035 0.846 482,000$ 482,000$ -$ 407,733$ 407,733$ 22 2036 0.839 482,000$ 482,000$ -$ 404,497$ 404,497$ 23 2037 0.833 482,000$ 482,000$ -$ 401,287$ 401,287$ 24 2038 0.826 482,000$ 482,000$ -$ 398,102$ 398,102$ 25 2039 0.819 482,000$ 482,000$ -$ 394,942$ 394,942$ 26 2040 0.813 482,000$ 482,000$ -$ 391,808$ 391,808$ 27 2041 0.806 482,000$ 482,000$ -$ 388,698$ 388,698$ 28 2042 0.800 482,000$ 482,000$ -$ 385,613$ 385,613$ 29 2043 0.794 482,000$ 482,000$ -$ 382,553$ 382,553$ 30 2044 0.787 831,000$ 482,000$ 1,313,000$ 654,312$ 379,517$ 1,033,829$

Total Alternative 6A IC, MNA, P&T, ERD 4,096,000$ 14,262,000$ 18,358,000$ 3,871,657$ 12,618,458$ 16,490,000$

006619

PRESENT WORTH ANALYSISPROJECT: Eagle Picher Carefree Batteries Superfund SiteSITE: Socorro, New MexicoALTERNATIVE: AOP treatmentDESCRIPTION: PV analysis for AOP capital and O&M costsPREPARED BY: DBS&APROJECT NUMBER: ES12.0120

Assumptions1. Real Discount Rate 0.80%Source: OMB Ciruclar No. A-94, Jan. 2013 version of Appendix C obtained from http://www.whitehouse.gov/omb/circulars/a094/a94_appx-c.html2. Assumes Total PV earns interest for an entire year (12 months), compound annually.3. Calculation made with 2013 "real" dollars for entire period.

Present Worth Analysis

E A B C=A+B A*E B*E C*E

Elapsed Time Year

Discount Factor at

0.8% Capital Cost O&M Cost Total Cost

Total PV Capital Costs

at 0.8%

Total PV O&M Costs at

0.8%Total PV Costs

at 0.8%0 2014 1.000 -$ -$ -$ -$ 1 2015 1.000 -$ -$ -$ -$ 2 2016 1.000 -$ -$ -$ -$ 3 2017 1.000 -$ -$ -$ -$ 4 2018 1.000 -$ -$ -$ -$ 5 2019 1.000 -$ -$ -$ -$ 6 2020 1.000 975,520$ 118,642$ 1,094,162$ 975,520$ 118,642$ 1,094,162$ 7 2021 0.992 118,642$ 118,642$ -$ 117,701$ 117,701$ 8 2022 0.984 118,642$ 118,642$ -$ 116,766$ 116,766$ 9 2023 0.976 118,642$ 118,642$ -$ 115,840$ 115,840$ 10 2024 0.969 80,000$ 118,642$ 198,642$ 77,490$ 114,920$ 192,411$ 11 2025 0.961 118,642$ 118,642$ -$ 114,008$ 114,008$ 12 2026 0.953 118,642$ 118,642$ -$ 113,103$ 113,103$ 13 2027 0.946 118,642$ 118,642$ -$ 112,206$ 112,206$ 14 2028 0.938 80,000$ 118,642$ 198,642$ 75,060$ 111,315$ 186,375$ 15 2029 0.931 118,642$ 118,642$ -$ 110,432$ 110,432$ 16 2030 0.923 118,642$ 118,642$ -$ 109,555$ 109,555$ 17 2031 0.916 118,642$ 118,642$ -$ 108,686$ 108,686$ 18 2032 0.909 80,000$ 118,642$ 198,642$ 72,705$ 107,823$ 180,528$ 19 2033 0.902 118,642$ 118,642$ -$ 106,968$ 106,968$ 20 2034 0.894 118,642$ 118,642$ -$ 106,119$ 106,119$ 21 2035 0.887 118,642$ 118,642$ -$ 105,276$ 105,276$ 22 2036 0.880 80,000$ 118,642$ 198,642$ 70,424$ 104,441$ 174,865$ 23 2037 0.873 118,642$ 118,642$ -$ 103,612$ 103,612$ 24 2038 0.866 118,642$ 118,642$ -$ 102,790$ 102,790$ 25 2039 0.860 118,642$ 118,642$ -$ 101,974$ 101,974$ 26 2040 0.853 80,000$ 118,642$ 198,642$ 68,215$ 101,165$ 169,379$ 27 2041 0.846 118,642$ 118,642$ -$ 100,362$ 100,362$ 28 2042 0.839 118,642$ 118,642$ -$ 99,565$ 99,565$ 29 2043 0.833 118,642$ 118,642$ -$ 98,775$ 98,775$ 30 2044 0.826 118,642$ 118,642$ -$ 97,991$ 97,991$

Total Alternative AOP treatment 1,375,520$ 2,966,053$ 4,341,573$ 1,339,414$ 2,700,034$ 4,039,448$

006620

draft addendum to the feasibility study …\_es12-120\fs-addendum.5-14\rev draft_530.docx 1 daniel...

Documents