©
Timothy R Knutson 
Texaco Inc 
2000 Westchester Avenue
Attorney 
White Plains NY 10650
Phone 914 253 4633
Fax 914 253 4629
Andrew Praschack, Esq.
USEPA - Region II
Caribbean Field Office, Office 2A
1413 Fernandez Juncos Avenida
Santurce, Puerto Rico 00909
October 26, 1993
Re: 
Revised Schedule for Comprehensive RI, Tutu Wells Site, St. Thomas, USVI
Dear Andy:
As per our agreements in our meeting at U.S. Environmental Protection Agency
(USEPA) offices in Santurce, Puerto Rico on October 21, 1993, the Tutu Environmental
Investigation Committee (TEIC) has prepared a revised schedule (Figure 1) for the
completion of the remedial investigation (RI) and preparation of a draft feasibility study
(FS) for the Tutu Wells Site. The scope of the RI has been expanded to include a larger
areal extent, and to incorporate the data regarding other sites and potential sources of
volatile organic-contaminants (VOCs) and other constituents that have been generated, and
will be generated, by the Potentially Responsible Parties (PRPs) that you have identified
and other parties to the private litigation regarding the site.
As agreed during our meeting, the goal is to complete the second phase of RI field
work, submit a draft RI Report, incorporate the USEPA's comments into a final RI Report,
submit an analysis of remedial alternatives, and submit a draft FS Report by December 1,
1994. TEIC and Geraghty & Miller will expend all efforts to work with the PRP Group and
to expedite this aggressive schedule and complete the indicated work on time, or sooner if
at all feasible. The schedule shown of Figure 1 was prepared assuming that prolonged
delays will not be caused by difficulties in obtaining property access or permits for field
activities, or any other problems which are unforeseen and unaccounted for at present.
This schedule is also contingent on several assumptions regarding USEPA review
A 
TUT 006 
1337 
)
*64758*
64758
time and work product generation, including:
• 
Review and approval of this supplemental RI Scope Addendum (submitted
to the USEPA by December 21, 1994) by January 20, 1994.
• 
Completion of the Baseline Risk Assessment by USEPA no later than 4
weeks after receipt of validated groundwater quality data from the second
monitoring well sampling event.
• 
Review by USEPA of the Draft RI Report 4 weeks after submittal.
The PRPs and their consultants appreciate the cooperation of the USEPA in
recognizing the expanded scope of the RI, and look forward to a continued working
relationship to complete the RI and FS in accordance with the aggressive schedule shown
on Figure 1. If you have any questions, please call.
Sincerely,
TUTU ENVIRONMENTAL INVESTIGATION
COMMITTEE
• / ""'")/
Timothy R. Knutson, Esq.
Texaco
Christopher Gibson, Esq.
Archer & Greiner
Attachment
cc: 
Mel Hauptman; USEPA 
Paul Ryan; Texaco
Carolyn Kwan; USEPA 
Thomas V. Danahy, Geraghty & Miller, Inc.
Sarah K. Odland,'CDM Federal Programs 
Daniel A. Nachman, Geraghty & Miller, Inc.
Henning Moe; CDM Federal Programs 
Alberto Gutierrez, H + GCL
Ana Gloria Ramos; TEIC
p
TUT 
006 
1339
PROJECT: 
Allf GERAGHTY 
COMPREHENSIVE RI SCHEDULE 
PROJECT NO. 
FIGURE 1 
Ali' & MILLER, INC. 
PROO 13.001 
SYM 
REVISIONS 
DATE 
.. 
Environmental Services 
LOCATION: 
AUTiiORIZA TION NO. 
TUTU WELLS SITE 
LEGEND: 
SCHEDULED PROGRESS 
PROJECT SCHEDULE 
DESCRIPTION: 
I 
I 
ACTUAL PROGRESS 
SCH'D BY: 
D. NACHMAN 
DATE: 
10/22/93 
SCHEDULED PROGRESS (,c) 
ST. THOMAS, U.S. VIRGIN ISLANDS 
CHK'D BY: 
T. DANAHY 
DATE: 
10/22/93 
---------
ACTUAL PROGRESS (,c) 
• 
MILESTONES 
APPV'D BY: 
D. NACHMAN 
DATE: 
10/22/93 
ITEM 
1993 
I 
1994 
I 
1995 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
MAY 
JUNE 
JULY 
AUG 
SEPT 
OCT 
NOV 
DEC 
JAN 
FEB 
MAR 
APR 
NO. 
31 
7 14 21 28 5 12 19 211 
2. 
9 11 23 30 e 13 20 27 e 13 20 27 3 10 17 24 1 
8 15 
22 29 5 
12 19 11 3 
10 17 24 31 
7 14 21 28 4 11 ,e 25 2 
9 11 13 30 I 13 20 27 4 II 18 25 
1 8 IS 22 29 S 12 19 28 5 
12. 19 28 2 9 1813 30 
1 
DATA COMPILATION; PREP. OF RI SCOPE ADDENDUM 
2 
SUBMITTAL OF OF RI SCOPE ADDENDUM -
12/21/93 
• 
3 
USEPA REVIEW OF RI SCOPE ADDENDUM 
4 
USEPA APPROVAL OF RI SCOPE ADDENDUM 
• 
5 
PREPARATION FOR FIELDWORK/COORDINATE SUBCONTRACTORS 
6 
INSTALLATION & DEVELOPMENT OF B TO 10 NEW WELLS 
7 
SECOND GROUNDWATER SAMPLING EVENT 
B 
DATA VALIDATION 
9 
BASELINE RISK ASSESSMENT (RA) BY USEPA (ESTIMATED) 
10 
PREPARATION OF DRAFT RI REPORT 
11 
SUBMITTAL OF DRAFT RI REPORT (6 WEEKS AFTER ITEM 9) 
,. 
12 
USEPA REVIEW OF DRAFT RI REPORT (ESTIMATED) 
13 
MEETING WITH USEPA RE: USEPA COMMENTS ON DRAFT RI 
• 
14 
PREPARATION OF FINAL RI REPORT 
15 
SUBMITTAL OF FINAL RI REPORT 
-~ 
16 
ANALYSIS OF REMEDIAL ALTERNATIVES (START AFTER ITEM 9) 
17 
SUBMITTAL OF ITEM 1 6 (WITHIN 6 WEEKS AFTER ITEM 9) 
0 
18 
MEETING WITH USEPA RE: REMEDIAL ALTERNATIVES 
n 
19 
RESUBMISSION OF ANALYSIS OF REMEDIAL ALTERNATIVES 
H 
20 
PREPARATION OF DRAFT FEASIBILITY STUDY (FS) REPORT 
21 
~~~M'1'afRAF I t'EASIBILI I l 
::> I UUl Kl:.t-'UI'< I l7 VVl:.1:.1'.::S Ar IC.I'( 
• 
22 
PRESENTATION TO USEPA RE: DRAFT FS REPORT 
• 
23 
USEPA REVIEW OF FEASIBILITY STUDY (DURATION NOT SHOWN) 
24 
USEPA COMMENTS ON DRAFT FS REPORT (IF NECESSARY) 
25 
MEETING RE: USEPA COMMENTS ON FS REPORT (IF NECESSARY) 
26 
PREPARATION OF FINAL FS REPORT (IF NECESSARY) 
27 
SUBMITTAL OF FINAL FS REPORT (IF NECESSARY) 
28 
B:TU-257 
EPA REGION II
SCANNING TRACKING SHEET
DOC ID # 64758
DOC TITLE/SUBJECT:
TUTU WELLS SUPERFUND SITE
FIGURE 1
COMPREHENSIVE Rl SCHEDULE
(Page: TUT 006 1339)
THIS DOCUMENT IS OVERSIZED AND CAN BE
LOCATED IN THE ADMINISTRATIVE RECORD FILE
AT THE
SUPERFUND RECORDS CENTER
290 BROADWAY, 18™ FLOOR
NEW YORK, NY 10007