Pallano

IN THE SUPERIOR COURT OF THE STATE OF DELAWARE
IN AND FOR NEW CASTLE COUNTY

ANAJAI CALCAÑO PALLANO, et al., )
)
Plaintiffs, )
)
v. ) C.A. No. N09C-11-021 JRJ
)
THE AES CORPORTATION, et al., )
)
Defendants. )

Date Submitted: October 27, 2015
Date Decided: November 24, 2015

Upon Defendant AES’s Daubert Motion to Exclude the Testimony of William P.
Konicki: DENIED.

Ian Connor Bifferato, Esquire, David W. deBruin, Esquire, Kevin G. Collins,
Esquire, and J. Zachary Haupt, Esquire, Bifferato, LLC, Wilmington, Delaware; of
counsel: Steven J. Phillips, Esquire, Diane Paolicelli, Esquire, and Philip Monier
III, Esquire, Levy Phillips & Konigsberg, LLP, New York, New York; Robert T.
Vance, Jr., Esquire, and Giovanni O. Campbell, Esquire, Law Offices of Robert T.
Vance, Jr., Philadelphia, Pennsylvania, Attorneys for Plaintiffs.

Timothy Jay Houseal, Esquire, and William E. Gamgort, Esquire, Young Conaway
Stargatt & Taylor, LLP, Wilmington, Delaware; of counsel: Dane H. Butswinkas,
Esquire, R. Hackney Wiegmann, Esquire, John M. McNichols, Scott K. Dasovich,
Esquire, James Gillenwater, Esquire, and Lucas E. Beirne, Esquire, Williams &
Connolly LLP, Washington, D.C., Attorneys for Defendants.

Jurden, P.J.
 I. INTRODUCTION

This litigation arises out of the alleged unlawful dumping of toxic industrial

waste (“Coal Ash Waste” or “Waste”) in the Dominican Republic by The AES

Corporation (“AES”) and four of its wholly owned subsidiaries, AES Atlantis,

Inc.; AES Puerto Rico, LP; AES Puerto Rico, Inc.; and AES Puerto Rico Services,

Inc. (collectively “Defendants”).1 Plaintiffs, residents of the Dominican Republic,

allege they were “wrongfully exposed to reproductive, carcinogenic, and other

toxins in the Coal Ash Waste, either directly or in utero, and as a result suffered

severe personal injuries, including birth defects and death.” 2 These birth defects

include, but are not limited to, conjoined twins, missing limbs, missing organs,

internal organs extruding from the body, cranial and bony malformations, central

nervous system injures, and gastrointestinal deformities.3

The Daubert motion sub judice is just one of nineteen 4 filed by the parties in

this hotly and heavily litigated dispute.5 At issue in AES’s Daubert Motion No. 10

1
Second Amended Complaint ¶¶ 1, 4 (“SAC”) (Trans. ID. 40099941).
2
Id. ¶ 16.
3
Id. ¶ 2.
4
The parties have filed fifty-four briefs in connection with the nineteen Daubert Motions.
Defendants have challenged seven of Plaintiffs’ causation experts and four of Plaintiffs’
exposure experts. Plaintiffs have challenged six of Defendants’ causation experts and two of
Defendants’ exposure experts.
5
This litigation began in 2009. In April 2013, because the parties had so many discovery
disputes and the Court was concerned about these disputes potentially delaying depositions and
jeopardizing the trial date, the Court issued an Order of Reference to Special Master Joseph R.
Slights, III, Esquire, to assist in discovery matters and address designated evidentiary issues. The
Special Master held over fifteen hearings and issued over twenty-five decisions. To date, the
parties have spent in excess of $600,000.00 in Special Master fees, there are over 1000 docket
2
are the properties of Coal Ash Waste. Defendants seek to exclude Mr. William

Konicki’s expert opinion that the Coal Ash Waste dumped at Arroyo Barril

contained fine particle content (silt) capable of becoming airborne and respirable. 6

Defendants dispute that the Coal Ash Waste became airborne, claiming it is a solid,

rock-like substance, with a low potential for dust emissions. 7

For the reasons set forth below, AES’s Daubert Motion No. 10 to Exclude

the Testimony of Mr. William Konicki is DENIED.

II. BACKGROUND

Defendants operate power plants that burn coal for the purpose of generating

energy. 8 Defendants’ coal-fired power plants produce coal combustion by-

products, specifically solid waste comprised of fly ash and bottom ash, also known

as Coal Ash Waste. 9 Coal Ash Waste contains arsenic, cadmium, nickel,

entries, and the parties have filed at least seventy-eight motions since 2011.
6
The parties submitted twenty-six Joint Daubert Exhibits, which include each expert’s report,
deposition, and curriculum vitae (“J. Ex.”) (Trans. ID. 57342400). See J.Ex. 7A William P.
Konicki, P.E. and Paul C. Scheiner, Ph.D., Evaluation of Manufactured Aggregate from AES
Power Plant Guayama, Puerto Rico, placed in Arroyo Barril, Dominican Republic, Jan. 16, 2015.
7
AES’s Daubert Motion No. 10 to Exclude the Testimony of Mr. William Konicki at 1 (“Defs.’
Mot. Exclude Konicki”) (Trans. ID. 57346412).
8
SAC ¶ 5.
9
Id. Defendants admit that its coal-fired power plants generate “coal combustion products” but
refer to the coal combustion products as “Manufactured Aggregate,” rather than “Coal Ash
Waste.” Defendants’ Answer and Affirmative Defense to Plaintiffs’ Second Amended Complaint
¶¶ 5–6 (“Defs.’ Ans. SAC”) (Trans. ID. 44610320). According to Defendants, manufactured
aggregate is “created by hardening a mixture of fly ash and bottom ash through a chemical
hydration reaction and curing process [and] has a low potential for dust emissions.” Defs.’ Mot.
Exclude Konicki at 1. The Court refers to the “coal combustion product” as “Coal Ash Waste,”
the term used in the Second Amended Complaint.
3
beryllium, chromium, lead, mercury, and vanadium. 10 Plaintiffs assert that it is

“well known” that these substances cause birth defects and “other adverse

reproductive outcomes, including cancer of the lung, kidney, bladder and skin, as

well as respiratory illnesses and other disorders.” 11

Plaintiffs allege that, prior to October 2003, Defendants built a coal-fired

power plant in Guayama, Puerto Rico (“AES Puerto Rico”), and Puerto Rican

officials required Defendants to transport and dispose of the Coal Ash Waste

generated at that plant outside of Puerto Rico. 12 As a result, from October 2003

until March 2004, Plaintiffs allege Defendants dumped thousands of tons of Coal

Ash Waste on beaches in the Dominican Republic, including at the Arroyo Barril

port located in the Samaná Province.13 According to Plaintiffs, Coal Ash Waste

containing hazardously high levels of toxins was deposited directly on a beach in

Arroyo Barril located near Plaintiffs’ homes, workplaces, and recreational sites.14

Plaintiffs contend that the Coal Ash Waste was carried by wind and water to the

local residential areas, and consequently, the Plaintiffs were exposed to dangerous

10
SAC ¶ 6. Defendants admit that the “coal combustion products may contain trace amounts of
arsenic, cadmium, nickel, beryllium, chromium, lead, mercury and vanadium.” Defs.’ Ans. SAC
¶ 6. However, Defendants allege that the concentrations are too low to be hazardous to human
health. Id.
11
SAC ¶ 16.
12
Id. ¶ 7.
13
Id. ¶¶ 10–11.
14
Id.
4
levels of toxic materials contained in that Waste. 15

As a result of this exposure, Plaintiffs allege the following injuries. Minor

Plaintiff Maximiliano Calcaño was born on November 24, 2007, with multiple

birth defects, including missing limbs.16 Plaintiff Anajai Calcaño Pallano,

individually, and as mother and natural guardian, brings suit on behalf of

Maximiliano.17

Minor Plaintiff “Baby Mercedes” died shortly after birth on May 21, 2009,

as a result of a failed “Siamese twinning.” 18 Plaintiff Maribel Mercedes,

individually, and as personal representative of the estate of Baby Mercedes, brings

suit on behalf of Baby Mercedes.19

Minor Plaintiff Isael Altagracia Andujar was born on December 18, 2005,

with “severe gastrointestinal anomalies, among other injuries.” 20 Plaintiff Maribel

Andujar Medina, individually, and as mother and natural guardian, brings suit on

behalf of Isael. 21

Minor “Baby Olmos,” was born on July 23, 2008, “with severe

gastrointestinal deformities and other birth defects, and died shortly thereafter.” 22

15
Id. ¶¶ 57–58, 68.
16
Id. ¶ 17.
17
Id.
18
Id. ¶ 18.
19
Id.
20
Id. ¶ 19.
21
Id.
22
Id. ¶ 20.
5
Plaintiff Rosa Maria Andujar, individually, and as personal representative of the

estate of Baby Olmos, brings suit on behalf of Baby Olmos. 23

Minor Plaintiff Estanlyn Garcia Deogracia was born on March 8, 2008,

“with birth defects, including bony anomalies and an absent kidney.” 24 Plaintiff

Maria Virgen Deogracia, individually, and as mother and natural guardian, brings

suit on behalf of Estanlyn. 25

Plaintiff Amparo Andujar alleges that, after approximately four months of

pregnancy in 2008, she had to undergo a therapeutic abortion because her

physician believed that the “fetus exhibited several cranial and/or other anomalies

and was no longer viable.” 26

III. DAUBERT ANALYSIS

Delaware Rule of Evidence 702 governs the admission of expert testimony.

D.R.E. Rule 702 provides:

If scientific, technical or other specialized knowledge will assist the
trier of fact to understand the evidence or to determine a fact in issue,
a witness qualified as an expert by knowledge, skill, experience,
training or education may testify thereto in the form of an opinion or
otherwise, if (1) the testimony is based upon sufficient facts or data,
(2) the testimony is the product of reliable principles and methods,
and (3) the witness has applied the principles and methods reliably to
the facts of the case.

23
Id.
24
Id. ¶ 21.
25
Id.
26
Id. ¶ 22.
6
 D.R.E. 702 is identical to its federal counterpart, Rule 702 of the Federal

Rules of Evidence, which is governed by Daubert v. Merrell Dow

Pharmaceuticals, Inc. 27 The Delaware Supreme Court has expressly adopted

Daubert and its progeny. 28

Under D.R.E. 702, the trial judge acts as gatekeeper to ensure that scientific

testimony is both relevant and reliable.29 “The foci of a Daubert analysis are the

‘principles and methodology’ used in formulating an expert’s testimony, not [ ] the

expert’s resultant conclusions.” 30 Daubert sets forth several non-exclusive factors

to assist the trial judge in determining whether an expert’s opinion is reliable,

including testing, peer review, error rates, and acceptability in the relevant

scientific community. 31

Consistent with Daubert, in Delaware the trial judge must determine

whether:

(1) the witness is qualified as an expert by knowledge, skill
experience, training or education;

(2) the evidence is relevant;

27
Bowen v. E.I. DuPont de Nemours & Co., 906 A.2d 787, 794 (Del. 2006). See Daubert v.
Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579 (1993).
28
Tumlinson v. Advanced Micro Devices, Inc., 81 A.3d 1264, 1269 (Del. 2013) (internal
quotations omitted).
29
Bowen, 906 A.2d at 794 (“The trial judge acts as the ‘gatekeeper’ in deciding whether an
expert’s testimony ‘has a reliable basis in the knowledge and experience of [the relevant]
discipline.’”).
30
Id. (citing Daubert, 509 U.S. at 595).
31
Id.
7
 (3) the expert’s opinion is based upon information reasonably relied
upon by experts in the particular field;

(4) the expert testimony will assist the trier of fact to understand the
evidence or to determine a fact in issue; and

(5) the expert testimony will not create unfair prejudice or confuse
or mislead the jury.” 32

The party offering the testimony bears the burden of establishing its

admissibility by a preponderance of the evidence.33 Because trial judges perform

an important gatekeeping function, the Delaware Supreme Court has afforded trial

judges “considerable leeway in deciding in a particular case how to go about

determining whether particular expert testimony is reliable.” 34

IV. DISCUSSION

A. Plaintiffs’ Expert William P. Konicki, P.E., P.Eng.

William Konicki (“Konicki”) is a licensed Civil Engineer with over forty

years of experience in civil, structural, and foundation engineering. 35 Konicki

32
Id. at 795.
33
Id. at 794–95.
34
Id. (internal quotations omitted).
35
Plaintiffs’ Response to AES’s Daubert Motion to Exclude the Testimony of Mr. William
Konicki at 1 (“Pls.’ Resp.”) (Trans. ID. 57496585); Pls.’ Resp., Ex. A Konicki Affidavit ¶¶ 1–2
(“Konicki Aff.”). Konicki has a Bachelor of Science and Master of Science in Civil Engineering,
and is registered to practice in twenty-one states and one Canadian province. Konicki’s
numerous awards and honors include: Tau Beta Pi National Engineering Honor Society–RI Beta,
American Consulting Engineers Council National Grand Award, New England ACEC
Engineering Excellence Grand Conceptor Award, American Consulting Engineers Council
National Honor Award, and Nelson C. White Creativity in Engineering Award. Konicki is a
member of the American Concrete Institute, American Institute of Steel Construction, American
Society of Civil Engineers, and Boston Society of Civil Engineers. See J.Ex. 7C Konicki
Curriculum Vitae.
8
specializes in geotechnical engineering, which includes field and laboratory soil

classification, selection of soil engineering properties, methods of field and

laboratory testing to determine soil engineering properties, and applying soil

engineering properties to the design of roadways, embankments, and foundations

of structures.36

Konicki is currently the Senior Principal at an engineering consulting firm.

In this position, he routinely analyzes the particle size and particle distribution of

soils in both non-litigation and litigation work.37

B. Konicki’s Expert Opinion

Plaintiffs seek to prove through Konicki that the Coal Ash Waste dumped at

Arroyo Barril contained fine particle content (silt) capable of becoming airborne

and respirable.38 At Plaintiffs’ request, Konicki evaluated the physical and

chemical properties of the raw material used in the production of the Coal Ash

Waste and the physical and engineering properties of the Waste, 39 and performed a

particle size distribution analysis to determine how environmental conditions and
36
Pls.’ Resp. at 1; Konicki Aff. ¶ 2.
37
Konicki Aff. ¶ 3; J.Ex. 7B Konicki Deposition at 14–18. Particle size distribution measures the
amount of fine-size particles or silt in a material and the fine particle content measures the
percentage of the material capable of being airborne and respirable. Pls.’ Resp. at 10. Konicki
has worked as project manager on over twenty-five projects relating to structural design of slurry
walls, structural design of subway stations and tunnels, and structural foundation design of
bridges. Konicki’s litigation work includes, but is not limited to, expert testimony relating to
particle size analysis and distribution of fly ash as a structural fill and slope stability issues for a
residential development. See J.Ex. 7B Konicki Deposition at 14–18; J.Ex. 7C Konicki
Curriculum Vitae.
38
Pls.’ Resp. at 1.
39
J.Ex. 7A at 1.
9
mechanical erosion affected the properties of the material. 40

Konicki determined that the Defendants’ Coal Ash Waste is not physically

or chemically durable when exposed to routine environmental conditions (such as

rain, sun, and wind), or when subjected to routine mechanical erosion (from

storage, loading, transportation, and unloading). 41 According to Konicki, the Coal

Ash Waste has a variable composition, and gypsum, the primary bonding agent for

the Waste, is partially soluble in fresh water and more soluble in seawater.42

Konicki opines that the variable composition of the Coal Ash Waste and weakened

gypsum bonds from weathering and mechanical erosion reduced and changed the

particle size distribution of the Waste (increasing the silt content), and therefore,

the Waste was, and is, capable of easily becoming airborne.43

Defendants seek to exclude this opinion, arguing that Konicki: (1) lacks the

requisite qualifications; 44 and (2) relied on laboratory test results about the particle

size distribution of Coal Ash Waste that employed the incorrect testing

40
Id. Konicki relied on data about the raw materials used in the production of the Coal Ash
Waste, the general processes used at Defendants’ power plants, and information about the
manner in which Coal Ash Waste was stored at AES Puerto Rico, transported to the Dominican
Republic, and deposited on the beaches in Arroyo Barril. Konicki Aff. ¶13. Konicki also relied
on governmental publications, industry publications, and peer-reviewed literature about the
typical physical properties of fly ash, bottom ash, and chemical properties of gypsum. Id. ¶12.
41
Pls.’ Resp. at 2; J.Ex. 7A at i–iii.
42
Konicki Aff. ¶ 6; J.Ex. 7A at ii–iii.
43
Konicki Aff. ¶ 6; J.Ex. 7A at ii–iii.
44
Defs.’ Mot. Exclude Konicki at 8–12.
10
methodology. 45

1. Konicki’s Qualifications to Opine About the Particle Size
Distribution of the Coal Ash Waste

Defendants claim Konicki lacks the requisite qualifications to offer an

opinion on the chemical proprieties of the Coal Ash Waste. 46 Defendants argue

that Konicki’s opinion about the reduced particle size distribution is premised on

physical chemistry and breakdown of chemical bonds, but Konicki is not a

chemist, is not qualified to testify about chemistry, and is inappropriately serving

as a “mouth piece” for his staff chemist.47

“A witness may testify as an expert when qualified as an expert and the trial

judge determines that the witness has scientific, technical or other specialized

knowledge that will assist the trier of fact in understanding evidence or in

determining a fact at issue.” 48 Under D.R.E. 702’s liberal standard, an expert may

be qualified as an expert through skill, experience, training, or education.49

The Court is not persuaded by Defendants’ argument. It is well established

that as long as a proper foundation is laid, an expert may base his or her opinion on

45
Id. at 14–17.
46
Defs.’ Mot. Exclude Konicki at 8–12.
47
Id.; AES’s Reply Brief in Support of Daubert Motion No. 10 to Exclude the Testimony of Mr.
William P. Konicki at 3 (Trans. ID. 57607865).
48
Eskin v. Carden, 842 A.2d 1222, 1227 (Del. 2004).
49
Bell Sports, Inc. v. Yarusso, 759 A.2d 582, 590 (Del. 2000) (“Since the adoption of the
Delaware Rules of Evidence in 1980, this Court has recognized that opinion evidence may be
offered if an expert’s education, training or general experience demonstrates sufficient
knowledge of general principles, even if the expert does not have particular experiences with the
exact issue under examination.”).
11
data or facts from another expert.50 Konicki has over forty years of experience and

expertise in civil, structural, and foundation engineering. Through this experience,

Konicki has developed an understanding of chemistry as it relates to his expertise

in civil engineering, and in this case, Konicki researched the typical chemical

properties of fly ash, bottom ash, and the effect of water on the stability of

gypsum. 51 In addition to relying on his own research, experience, expertise,

education, and training, as a project manager, Konicki collaborated with his staff

assistants to evaluate the issues related to chemistry, bonding, and weathering

associated with Coal Ash Waste.52 Konicki testified that it is a standard

engineering practice for a senior engineer to oversee and interpret staff assistants’

analyses and testing results to formulate an engineering opinion and conclusion. 53

Based on Konicki’s research, experience, expertise, education, and training

50
D.R.E. 703 states: “The facts or data in the particular case upon which an expert bases an
opinion or inference may be those perceived by or made known to him at or before the hearing.
If of a type reasonably relied upon by experts in the particular field in forming opinions or
inferences upon the subject, the facts or data need not be admissible in evidence in order for the
opinion or inference to be admitted.” See also Laugelle v. Bell Helicopter Textron, Inc., 2014
WL 5038142, at *11 (Del. Super. 2014); Dura Auto. Sys. of Indiana, Inc. v. CTS Corp., 285 F.3d
609, 612–13 (7th Cir. 2002). In Dura Auto, the Seventh Circuit explained that an expert “is
permitted to use assistants in formulating his expert opinion, and normally they need not
themselves testify [because] . . . [t]he opposing party can depose them in order to make sure they
performed their tasks competently; and the expert witness can be asked at his deposition whether
he supervised them carefully and whether his relying on their assistance was standard practice in
his field.” 285 F.3d 609, 612–13 (7th Cir. 2002). When the soundness of the underlying expert
judgment is in issue, however, an expert cannot testify for the purpose of vouching for the truth
of what the assistant told him. Id. at 613–14.
51
Konicki Aff. ¶¶ 12, 24.
52
Id. ¶¶ 3, 5–6.
53
Pls.’ Resp. at 2; Konicki Aff. ¶ 3.
12
as a civil engineer, the Court finds Konicki is qualified to opine about the reduced

particle size distribution of Coal Ash Waste, and Konicki may rely upon and

interpret his staff assistants’ analyses and testing results to formulate his own

expert opinion.

2. Konicki’s Methodology

Konicki was unable to test the actual material dumped at Arroyo Barril.54

However, Konicki considered two available particle size distribution test results of

Coal Ash Waste from AES Puerto Rico—the 2004 Little Test 55 and the 2005

Rivera Test.56 The Little Test indicates silt levels of 1.92% 57 and the Rivera Test

indicates silt levels of 35.55% and 28.6%. 58 After thoroughly evaluating both,

Konicki concluded that the Rivera Test is more reliable.59

Both the Rivera Test and Little Test utilized testing methods according to

the standard procedures described by the American Society for Testing and

54
Although there was a sample allegedly taken from Arroyo Barril, Konicki did not consider the
sample because the mass of the sample was less than the minimum required by the ASTM and
American Association of State Highway and Transportation Officials (“AASHTO”) standards
and because “it was highly suspect due to the lack of any chain of custody.” Konicki Aff. ¶¶ 7–8.
Konicki also explained that the sample had “already been previously handled, manipulated, and
tested by others . . . making the sample non-representative of the material at Arroyo Barril.” Id. ¶
8.
55
Pls.’ Resp., Ex. E (Syam Kochyil & Dallas N. Little, Ph.D, P.E., Physical, Mechanical and
Chemical Evaluation of Manufactured Aggregate, Sept. 14, 2004).
56
Pls.’ Resp., Ex. F (Victor E. Rivera Associates, Inc., Manufactured Aggregate Laboratory Test
Results, Feb. 13, 2006.)
57
Pls.’ Resp., Ex. E at 3.
58
Pls.’ Resp., Ex. F at 2.
59
Konicki Aff. ¶¶ 8–9, 20.
13
Materials (ASTM).60 The Rivera Test followed the Standard Test Method for

Particle-Size Analysis of Soils (ASTM D422) and the Little Test employed the

Standard Method of Test for Sieve Analysis of Fine and Coarse

Aggregates (ASTM C136).61

Defendants contend Konicki’s opinion that the Coal Ash Waste dumped at

Arroyo Barril contained fine particle content or high silt content is not reliable

because he did not test the actual material at Arroyo Barril, and the Rivera Test

employed the incorrect methodology for testing the type of material at Arroyo

Barril. 62 According to Defendants, the Little Test properly utilized the ASTM

C136 methodology, which is specified for determining the dusting potential of

aggregate storage piles. 63 In contrast, the Rivera Test employed the ASTM D422

methodology, which is used to analyze the particle size of a soil sample for

purposes of determining its engineering properties, rather than assessing its dusting

potential.

The Court is unpersuaded by this argument. “Daubert neither requires nor

empowers Trial Courts to determine which of several competing scientific theories

has the best performance. Daubert demands only that the proponent of the

60
See Defs.’ Mot. Exclude Konicki, Ex. E (“Standard Method of Test for Sieve Analysis of Fine
and Coarse Aggregates”), Ex. J (“Standard Test Method for Particle-Size Analysis of Soils”).
61
The ASTM 653 defines “aggregate” as “inert and durable granular mineral materials” and
“soils” are defined as a mixture of different size particles that can range from gravel to sand to
silt and to clay sizes.” Konicki Aff. ¶ 31
62
Defs.’ Mot. Exclude Konicki at 14–17.
63
Id.
14
evidence show that the expert’s conclusion has been arrived at in a sound and

methodologically reliable manner.” 64

Konicki explained that it is a standard and common practice in his

professional practice as an engineer to make reasonable assumptions and draw

conclusions relying on tests performed by other experts when the source material is

inaccessible or has been removed or destroyed. 65 According to Konicki, he relied

upon the Rivera Test instead of the Little Test because: (1) the material tested in

the Little Test was not representative of the weathered and degraded material in

Arroyo Barril; and (2) the Rivera Test testing methodology was more appropriate

for determining the silt content of Coal Ash Waste at Arroyo Barril because it

mimics the effects of weathering and mechanical degradation. 66

Konicki determined the Coal Ash Waste was subject to weathering for at

least two years while the stockpile was stored at the AES Puerto Rico, and was

further exposed to weathering when transported and deposited at Arroyo Barril.67

Konicki explained that because the sample used in the Little Test was about sixty

days old, and was taken directly from the curing bed at the power plant, he

64
Minner v. Am. Mortgage & Guar. Co., 791 A.2d 826, 848 (Del. Super. 2000) (internal citations
omitted).
65
Konicki Aff. ¶ 7. Tumlinson, 81 A.3d at 1271–72 (“To be sure, every trial expert witness will
necessarily form an opinion or draft a report for purposes of litigation. What is important,
however, is whether the opinion or conclusion offered in litigation is consistent with, or based
on, the expert’s research and experience developed outside the litigation context.”).
66
Pls.’ Resp. at 11–18.
67
See J.Ex. 7A.
15
considered the sample to be a fresh and unweathered sample, and, therefore, non-

representative of the material transported to Arroyo Barril.68

Konicki also explained that he relied on the Rivera Test because the

ASTM D422 testing method closely mimics the effects of weathering and

mechanical degradation on the measured particle size distribution. 69 Specifically,

the ASTM D4222 method involves mechanically breaking up agglomerated

particles in the sample with a mortar and pestle, and then wet sieving this crushed

sample to determine particle size distribution.70 In contrast, the ASTM C136

method, applicable only to coarse and fine aggregates, requires a dry sieving of the

sample and does not mimic the effects of mechanical degradation or the effects of

water on the measured particle size distribution. 71

Accordingly, the Court finds that Konicki’s proffered testimony is based

upon sufficient facts and data, is the product of reliable principles and methods,

and Konicki has applied those principles and methods reliably to the facts of this

case.

V. CONCLUSION

As discussed above, the Court finds Konicki is qualified by knowledge, skill

experience, training, and education to opine about the particle size distribution of

68
Konicki Aff. ¶¶ 20–23.
69
Id. ¶¶ 30–35
70
Id. ¶ 31.
71
Id. ¶¶ 30–33.
16
the Coal Ash Waste; his opinion is relevant; his opinion is based upon information

reasonably relied upon by experts in the particular field; his testimony will assist

the trier of fact to understand the evidence or to determine a fact in issue; and the

testimony will not create unfair prejudice or confuse or mislead the jury. For the

foregoing reasons, Defendant’s Motion to Exclude the Testimony of Mr. William

P. Konicki is DENIED.

IT IS SO ORDERED.

____________________________
Jan R. Jurden, President Judge

17