       IN THE SUPERIOR COURT OF THE STATE OF DELAWARE

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

                                          ORDER

       AND NOW TO WIT, this 26th day of February, 2016, the Court having

heard and duly considered AES’s Daubert Motion to Exclude the Testimony of Dr.

Sohail Khattak; 1 Plaintiffs’ Response;2 and AES’s Reply; 3 IT APPEARS THAT:

       1.    Sohail Khattak, M.D. (“Dr. Khattak”) is a pediatrician, clinical

pharmacologist, and researcher, specializing in the study of environmental




1
  AES’s Daubert Motion to Exclude the Testimony of Dr. Sohail Khattak (“Defs.’ Mot. Exclude
Dr. Khattak”) (Trans. ID. 57345881). This Motion is one of nineteen Daubert Motions filed by
the parties. See Pallano, et al. v. AES Corp., et al., 2015 WL 7776612 (Del. Super. Nov. 24,
2015) (Opinion Denying Defendants’ Daubert Motion to Exclude the Testimony of William P.
Konicki). The Court incorporates by reference the facts, background, and the discussion of
Delaware Rule of Evidence 702 and Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S.
579 (1993), set forth in that opinion. 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. 6.A Report of Sohail Khattak, M.D., FRCPC (“Dr. Khattak Expert
Report”).
2
  Plaintiffs’ Response to AES’s Daubert Motion to Exclude the Testimony of Dr. Sohail Khattak
(“Pls.’ Resp.”) (Trans. ID. 57496503); Pls.’ Resp., Ex. A Dr. Khattak Affidavit (“Dr. Khattak
Aff.”).
3
  AES’s Omnibus Reply in Support of Daubert Motions No. 1, 2, 3 and 4 to Exclude Drs. Bearer,
Mattison, Khattak and Finnell (“Defs.’ Reply”) (Trans. ID. 57607790).
toxicology and neuro-behavioral teratology. 4 Dr. Khattak’s research focuses on

diseases caused by environmental exposure to chemicals and drugs, including

organic solvents. 5

       2. Dr. Khattak opines to a reasonable degree of medical and scientific

certainty that exposure to Coal Ash Waste deposited on the beach in Arroyo Barril

was a substantial factor in causing the birth defects and adverse reproductive

outcomes of Isael Altagracia Andujar, Starlys Garcia Deogracia, Maximiliano

Altagracia Calcano, Baby Olmos, Baby Mercedes, and Amparo Andujar’s failed

pregnancy. 6

       3. To reach this opinion, Dr. Khattak utilized the weight-of-the-evidence

analysis and the differential diagnosis methodology. 7 Dr. Khattak’s Affidavit and

Joint Declaration explain in detail the weight-of-the-evidence analysis, the

differential diagnosis methodology, and his application of these methodologies.8

Dr. Khattak personally examined two of the three living child Plaintiffs (Estarlyn

Garcia and Isael Altagracia Andujar), interviewed their mothers, reviewed medical


4
  Dr. Khattak Expert Report at 1.
5
   Id. Dr. Khattak is the lead author of a peer-reviewed article published in the Journal of
American Medical Association, titled “Pregnancy Outcome Following Gestation Exposure to
Organic Solvents.” This was a prospective epidemiological study relating to the relationship
between birth defects and gestational exposure to organic solvents. Dr. Khattak Aff. ¶¶ 1, 10–12.
6
  Dr. Khattak Expert Report at 2.
7
  Id. at 2–3.
8
  See Plaintiffs’ Response to AES’s Daubert Motion to Exclude the Testimony of Dr. Donald
Mattison, Ex. B Joint Declaration of Sohail Khattak, M.D., FRCP(C), Richard H. Finnell Ph.D.,
and Donald R. Mattison, M.D. (“Joint Declaration”) (Trans. ID. 57496491).
                                               2
records of all of the Plaintiffs, and reviewed the reports of other examining

physicians, including Dr. Phouc Le and Defendants’ Medical Examiner Dr. Pedro

Sanchez.9

       4. Dr. Khattak’s report contains an in-depth summary of each Plaintiffs’

medical records and an in-depth summary of his medical examinations. 10 Dr.

Khattak’s report discusses scientific literature establishing the reproductive toxicity

of Coal Ash Waste and its toxic constituents. 11 Dr. Khattak reviewed Dr. Bearer’s

expert report analyzing the scientific literature she relied upon, the link to each

Plaintiffs’ particular injuries, 12 and expert exposure data and exposure models

evaluating the timing, length, and intensity of exposures.13 Finally, Dr. Khattak

discusses the alternative causes he ruled out and why he disagrees with the

Defendants’ expert Dr. Anthony Scialli’s contrary methodological approach and

conclusions.14 Dr. Khattak concludes his report by summarizing his causation

opinion for each child Plaintiff and Amparo Andujar’s failed pregnancy. 15

       5. The Court finds that Dr. Khattak’s expert opinions satisfy Daubert and

are admissible under Delaware Rule of Evidence 702. Plaintiffs have established

that Dr. Khattak’s proffered testimony is based upon sufficient facts and data, is

9
  Dr. Khattak Aff. ¶¶ 49–50.
10
   Dr. Khattak Expert Report at 4–35.
11
   Id. at 35–46; Dr. Khattak Aff. ¶ 30.
12
   Dr. Khattak Aff. ¶¶ 76–77.
13
   Id. ¶¶ 110–27.
14
   Id. ¶¶ 13–14, 33, 51–59.
15
   Dr. Khattak Expert Report at 48–50.
                                          3
the product of reliable principles and methods, and he has applied the principles

and methods reliably to the facts of this case. Dr. Khattak has explained the

literature he relied upon (and did not rely upon), the methodology he employed,

and has articulated his thought process, evaluation methods, and conclusions.

      WHEREFORE, because the Court finds that the opinions set forth in

Dr. Khattak’s Expert Report, Deposition, and Affidavit, and Joint Declaration are

both relevant and reliable, AES’s Daubert Motion to Exclude the Testimony of Dr.

Sohail Khattak is DENIED.

      IT IS SO ORDERED.



                                             _____________________________
                                             Jan R. Jurden, President Judge




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