### February4, 2010 Rafael Casanova, P.G. Remediation Project Manager U.S. Environmental Protection Agency Region 6 Superfund Division (6SF-RA) 1445 Ross Avenue, Suite 1200 Dallas, Texas 75202-2733 Re: RevisedPartialDeletion Data ManyDiversifiedInterests, Inc. (MOl) SuperfundSite Houston, Harris County, Texas EPA 10: TXDOOBOB3404 TCEQ Superfund10: SUP042 Dear Mr. Casanova: SKA Project No. 39004-0004

SKAConsulting, L.P. (SKA), on behalfofClinton Gregg Investments, LLC (CGI), is providing the revised locational data and information in support ofour previous requestthatthe United States Environmental Protection Agency (EPA) granta partial deletion from the National Priorities list (NPL) ofthe Many Diversified Interests, Inc. (MDI) Superfund Site (Site) located in the Fifth Ward District ofthe Cityof Houston, Harris County, Texas. SKA has prepared the required mapping data in accordancewith Section 6 and Appendix G of Close OutProcedures forNationalPrioritiesListSites(EPA Document No. 540-R-98-016, dated January2000). The enclosed locational data includes onefigure depicting the entire boundaryofOperable Units (OU) 1, 2, and 3 and the boundaries of both partial deletion areas (OU1 Soil Unitand OU1 West8-Acre Groundwater Unit). Additionally, an enclosed spreadsheet details the latitude and longitude coordinates thatwere collected by aTexas Registered Professional Land Surveyorfor each cornerofthe partial deletion areas in addition to the latitude and longitude coordinates that were provided to SKA bythe EPAforeach cornerofOU 2 and 3. ArcView shapefiles and raster images utilized to compile the Partial Deletion Area figure are included on a compact disc (CD). Both hard and electronic copies ofthe map and spreadsheet are provided with this transmittal. In support of EPAcompleting the Data Collection Form as part ofthe partial deletion request, the following responses are provided to the questions in Sections 1.7, 2.2, 2.3, and 2.6 ofthe Data Collection Form: Section 1.7- Paola Belloni, contractorfor SKAConsulting, L.P., (832) 494-7627 Section 2.2 - Electronic: Projection of Data, Projection Zone, Horizontal Datum, Source, Source Scale, Point-line-Area, Accuracy Value and Unit, Source Projection, Source Projection Spheroid, Source Horizontal Datum

G:\2004\39004-0004\LeUers\39004-0004L02_Partial Delelion Dala_rev1.doc SKAConsulting, L.P. ·10260Westheimer, Suite 605' Houston, Texas 77042· 713.266.6056 phone' 713-266-0996 fax

### Mr. Rafael Casanova, P.G. February4, 2010 Page 

### 2 Section 2.2 - Printout: Projection Data, Units of Measure, Projection Zone, Horizontal Datum, XShiftlYShift, Method ofCollection, Source Projection, Source Projection Spheroid, Source Horizontal Datum Section 2.3 -ArcView shape files Section 2.6 -Texas Registered Professional Land Surveyor CGI looks forward to EPA's and TCEQ's approval ofthe enclosed revised locational data. Should you have anyquestions regarding this transmittal, please do not hesitate to call eitherof us at (713) 266-6056. Sincerely, SKACONSULTING, L.P.

# ~M(j~ Trent McDaniel, P.G. Project Manager Scott K. Leafe President/Managing Partner Attachment: Figure 1 - Partial Deletion Areas, Soils and 8-Acre Groundwater Unitof

# au 1 Table 1 - Partial Deletion Coordinates ArcView Shapefiles and Raster Images (on CD) Cc: Carlos Sanchez, USEPA Region 6, via email GaryG. Miller, USEPA Region 6, via email and hard copy Phillip Winsor, Texas Commission on Environmental Quality, via email and hard copy John Jennings, Clinton Gregg Investments, LLC, via email and hard copy

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# 11 1 ;TABLE 1 PARTIAL DELETION COORDINATES MANY DIVERSIFIED INTERESTS, INC. SUPERFUND SITE OPERABLE UNIT 1 HOUSTON, HARRIS COUNTY, TEXAS EPA 10: TXD008083404; TCEQ SUPERFUND 10: SUP042
Map Number Latitude IDMS) Lonoitude IDMS) Lonoitude IDOl Latitude (DOl Associated 

## au 1 29' 45' 58.0816?,'N 95' 20' 01.22291 "W -95.33367303 29.76613380 OU1,OU1W 2 29' 46' 04.72684"N 95' 20' 01.47096"W -95.33374193 29.76797968 OU1, OU1W, OU2, OU3 3 29' 46' 04.75190"N 95' 20' 00.44738"W -95.33345761 29.76798664 OU1, OU1W, OU2, OU3 4 29' 46' 06.12680"N 95' 20' 00.47581"W -95.33346550 2976836856 OU1, OU1W, OU2, OU3 5 29' 46' 06.12958"N 95' 20' 00.36238"W -95.33343399 29.76836933 OU1, OU1W, OU2, OU3 6 29' 46' 07.11943"N 95' 20' 00.38162"W -95.33343934 29.76864429 OU1, OU1W, OU2, OU3 7 29' 46' 07.17220"N 95' 19' 58.22645"W -95.33284068 29.76865894 OU1, OU1W, OU2, OU3 8 29' 46' 09.51980"N 95' 19' 58.26899"W -95.33285250 29.76931106 OU1, OU2, OU3 9 29' 46' 09.54508"N 95' 19' 56.4562?''W -95.33234896 29.76931808 OU1, OU2, OU3 10 29' 46' 09.46366"N 95' 19' 55.25988"W -95.33201663 29.76929546 OU1, OU2, OU3 11 29' 46' 09.37890"N 95' 19' 53.94095"W -95.33165026 29.76927192 OU1, OU2, OU3 12 29' 46' 09.45505"N 95' 19' 48.11687"W -95.33003246 29.76929307 OU1, OU2, OU3 13 29' 46' 09.25892"N 95' 19' 46.29484"W -95.32952635 29.76923859 OU1, OU2, OU3 14 29' 46' 09.19266"N 95' 19' 46.02642"W -95.32945178 29.76922018 OU1, OU2, OU3 15 29' 46' 08.97695"N 95' 19' 44.28106"W -95.32896696 29.76916026 OU1, OU2, OU3 16 29' 46' 06.63012"N 95' 19' 44.24370"W -95.32895658 29.76850837 OU1, OU2, OU3 17 29' 46' 06.57012"N 95' 19' 47.00525"W -95.32972368 29.76849170 OU1, OU2, OU3 18 29' 46' 02.61540"N 95' 19' 46.93054"W -95.32970293 29.76739317 OU1, OU2, OU3 19 29' 46' 02.68900"N 95' 19' 43.70357"W -95.32880655 29.76741361 OU1, OU2, OU3 20 29' 46' 01.53895"N 95' 19' 43.68359"W -95.32880100 29.76709415 OU1, OU2, OU3 21 29' 46' 01.50320"N 95' 19' 46.31084"W -95.32953079 29.76708422 OU1, OU2, OU3 22 29' 46' 00.51348"N 95' 19' 46.28356"W -95.32952321 29.76680930 OU1, OU2, OU3 23 29' 46' 00.50413"N 95' 19' 46.96430"W -95.32971231 29.76680670 OU1, OU2, OU3 24 29' 46' 00.1 0824"N 95' 19' 46.95339"W -95.32970928 29.76669673 OU1, OU2, OU3 25 29' 46' 00.17582"N 95' 19' 43.6598?''W -95.32879441 29.76671551 OU1, OU2, OU3 26 29' 45' 59.24088"N 95' 19' 43.64362"W -95.32879441 29.76645580 OU1, OU2, OU3 27 29' 45' 59.22754"N 95' 19' 44.76099"W -95.32910028 29.76645209 OU1, OU2, OU3 28 29' 45' 58.21724"N 95' 19' 44.74515"W -95.32909588 29.76617146 OU1, OU2, OU3 29 29' 46' 07.5513"N 95' 19' 56.50220"W -95.33236172 29.76862643 OU1,OU1W 30 29' 45' 58.12456"N 95' 19' 56.16733"W -95.33226870 29.76614571 OU1,OU1W 31 29' 46' 0.22" N 95' 20' 1.40" W -95.333723 29.766728 OU1, OU1W, OU2, OU3 32 29' 46' 0.08" N 95' 20' 11.52" W -95.33653500 29.76669000 OU2,OU3 33 29' 45' 57.77" N 95' 20' 11.47" W -95.33652000 29.76604700 OU2,OU3 34 29' 45' 57.72" N 95' 20' 14.82" W -95.33745051 29.76603406 OU2,OU3 35 29' 46' 4.97" N 95' 20' 14.96" W -95.33748855 29.76804649 OU2,OU3 36 29' 46' 4.94" N 95' 20' 16.53" W -95.33792373 29.76803880 OU2,OU3 37 29' 46' 7.18" N 95' 20' 16.55" W -95.33792950 29.76866162 OU2,OU3 38 29' 46' 7.21" N 95' 20' 8.92" W -95.33581117 29.76866878 OU2,OU3 39 29' 46' 12.23" N 95' 20' 9.03" W -95.33584086 29.77006292 OU2,OU3 40 29' 46' 12.22" N 95' 20' 12.62" W -95.33683960 29.77006135 OU2,OU3 41 29' 46' 17.90" N 95' 20' 12.71" W -95.33686330 29.77163849 OU2,OU3 42 29' 46' 17.90" N 95' 20' 11.99" W -95.33666414 29.77163898 OU2,OU3 43 29' 46' 21.05" N 95' 20' 11.98" W -95.33666008 29.77251460 OU2,OU3 44 29' 46' 21.49" N 95' 19' 47.04" W -95.32973389 29.77263572 OU2,OU3 45 29' 46' 20.08" N 95' 19' 47.00" W -95.32972218 29.77224369 OU2,OU3 46 29' 46' 16.18" N 95' 19' 46.04" W -95.32945480 29.77116170 OU2,OU3 47 29' 46' 16.18" N 95' 19' 43.06" W -95.32862835 29.77116170 OU2,OU3 48 29' 46' 11.74" N . 95' 19' 43.06" W -95.32862835 29.76992687 OU2,OU3 49 29' 46' 11.69" N 95' 19' 35.45" W -95.32651481 29.76991511 OU2,OU3 50 29' 45' 58.17" N 95' 19' 35.42" W -95.32650518 29.76615842 OU2,OU3 51 29' 45' 58.12" N 95' 19' 42.61" W -95.32850267 29.76614376 OU2,OU3

G:\2004\39004-0004\Tables\MDI Partial Deletion CoordinatesJormal.xls February 2010 t.ioJe.s; Coordinatesforthe "Coordinate Reference" pointsshown on the MOl OU1. OU2, OU3 Soil and GroundwaterDeletion map dated January2010 bySKA Consulting, L.P.. The column "Map Number" shown above referencesthe labeled pointson the map. Coordinateswere generated byaTexas Registered Professional Land Surveyor perthe GeographicCoordinate System. North American Datum 1983. The column "Associated OU" listswhich operable unitsthe point(map number) touches. OU1W isthe a-acre westgroundwaterunitpartial deletion area ofOU1. Projected Coordinate System: NAD_1983_SI3IePlane_ Texas_South_CenlraLFIPS_4204_Feet Datum: 0 North American 1983 SKA Consulting, L"J'.
- - Houston, Texas