Free Declaration - District Court of Delaware - Delaware

Case 1:88-cv—00263—SLR Document 371-13 Filed 11/06/2007 Page1 0f2
Exhibit 11

y Case 1:88-cv—00263—SLR Document 371-13 Filed 11/06/2007 Page 2 of 2
From: _ Lenwood Hall [[email protected]] I ‘ _ a f “
Sent: Wednesday, May 16, 2001 9:52/KM ‘ · ‘ __..
To: _ Skip Uvingston e ‘ 1 ‘ -
Oc: Dennis Burton
‘S··h|ect: updateonlviotiva tasks - ‘ { · ` 1
h41ud(§11 ‘- -
· B) . ‘ ‘ _ ·
K Hi Skip: ‘ · _ . .
How are things with you? I suspect you are swamped as·usua1. I thought you might be
interested in a brief update on Motiva activities since January.
`l. Monthly PAH and metals analysis is on schedule as proposed. I will send you quarterly
‘summaries using the same format previously used. _
7 2. The three phase study (colloidal, particulate and dissolved} was initiated a few months _
ago. Final results are expected in a few weeks.
3. A Rangia tissue depuration study was initiated this spring with tissue samples
collected on day 0, 2, 4, 7, 15 and 28. The goal of this experiment is to determine the ·
loss of PAHs in tissues over time for Rangia collected in the Delaware River and placed in
a relatively clean creek in Delaware. Results will be available by the end of the month._
Mike Salazar has been'involved with the design of this experiment. _- .
' I
4. Resident Rangia (not caged Rangia} have been collected from various sites in the ` `
Delaware River this spring and tissue is presently being analyzed for PAHs,.pesticides,
PCBs and metals. Tissue results are expected within a month.
Mike Salazar has . - _ · “
also been involved with this experiment. Mike recommends_using resident-species collected ·
from the area of interest if these species can be collected on an adequate spatial scale.
5 ‘cdiment samples for toxicity testing and chemical analysis were collected from the
t ld sites (sites we agreed on last winter} during the-last week of April. —
Toxicity tests have been initiated and sediment samples have been sent to the various
laboratories for chemical`analysis. Sampling for benthic communities will be conducted at
all triad sites next week by CDU (Dan Dauer's group} and our field crew.
6. The sediment trap study has been initiated. Results will be available in the next 2
months. - . 7
7. Based on conversations with Dick Lee, Skidaway is on schedule with their coring ,
analysis and chemical measurements.
P ease confirm that you received this e-mail. Don’t hesitate to call or e—mai1 if you have
`an; questions.
nenwood _ - l -
_ _ _ i 1
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