Comments on Proposed Changes to the

                                                             Draft RI/FS Workplan

                                                              Jacksonville Ash Site

                                                                        2/23/00

 

FOREST STREET

 

1.                  Site Inspection report sampling locations SS-16 (southwest corner of site- on the south side of Forest Street) and SS-19 (waste pile west of railroad track along McCoy Creek right of way) both have detections of lead above 400 ppm.  These areas need characterization samples.  There is only one delineation boring proposed  near SS-19.  SS-16 has three proposed delineation borings at least 200 feet away.  Add more characterization samples in these areas. 

 

2.                  The soil sample north of the Head Start School in the playground indicates lead above 400 ppm.  Characterization borings are needed in the playground north of the school and additional delineation samples are needed in the playground adjacent to the west side of the school  

 

3.                  There is a proposed delineation boring approximately 1000 feet southwest of the site.  Is this boring misplaced or is it for investigation of the vacant lot south of Lewis Street mentioned in specific comment 62 on the draft RI/FS work plan.  Include an investigation into the vacant lot south of Lewis Street.

 

4.                  Ash has already been reported east of Myrtle Avenue in a City park.  The proposed characterization borings do not extend to the park.  Additional characterization and delineation borings are needed along Mc Coy Creek east of I-95.  Some additional delineation borings are needed north of McCoy Creek east and west of I-95.

 

5.                  The delineation borings should be in every other residential yard, with the 2^nd tier delineation borings staggered in every other yard.  This is not observed in all residential areas on Figure 12-2.

 

6.                  A cluster of wells is needed to check for vertical gradients.

 

 

 

 

 5^th AND CLEVELAND

 

7.                  Not all the borings from the Oct. 1996, Contamination Assessment Report were analyzed for lead and arsenic.  Remove the borings that were not sampled for analysis or distinguish these borings on Figure 13-2 and in the legend.  These borings were of varying depth and did not establish the vertical extent of the ash.

 

8.                  Ash was observed in SB-54 just north of the parking lot for the Emmett Reed Center, although it is not included in the extent of ash contour.  Soil sampling is needed around the Emmett Reed Center to verify that ash contamination is not present.  Ash has been reported along the eastern side of Payne Street next to the baseball field.  Soil samples are needed in this area. 

 

9.                  As stated in the comments to the draft RI/FS workplan, additional soil samples are needed along the length of the former drainage ditch that ran just east of the Emmett Reed Center and then turned east toward I-95.  Soil samples are also needed along the right of way of 6^th Street from Francis Street eastward to I-95 and the residential parcels north of 6^th Street adjacent to the western side of I-95.

 

10.              Only five borings from the May, 1997, Site Inspection Report were analyzed for TAL, TCL, and dioxin.  The remainder were only analyzed for dioxin.  Distinguish these borings on Figure 13-2 and in the legend.  Many characterization borings are needed in all areas of known ash including the park, baseball field, the area around the Emmett Reed Center and in the residential areas.  These are also needed to define the vertical extent of ash.

 

11.              Ash is present along Cleveland Street south of the site.  Soil borings are needed to characterize and define the extent of the ash south along Cleveland Street.  Ash has been found further west than the proposed delineation borings in the residential area between Eaverson and Payne Streets and Hart and Grothe Streets.  Move the characterization borings further west into the residential areas southwest of the site.

 

12.              Delineation samples are needed northwest of the site in the Oaks of Durkeeville residential area to verify the extent of ash in this direction. 

 

13.              The delineation borings should be in every other residential yard, with the 2^nd tier delineation borings staggered in every other yard.  This is not observed in all residential areas on Figure 13-2.

 

14.              Two monitoring wells are proposed for over 500 feet east and west of the site which is too far away from known contamination.  One of these may be a background well (groundwater contour lines are not labeled), but the other should be moved immediately adjacent to known ash contamination.  This was mentioned in the comments to the draft RI/FS workplan.

 

15.              A cluster of wells is needed to check for vertical gradients.

 

 

 

 

 

 

 

LONNIE C. MILLER SR, PARK

 

16.              The delineation borings should be in every other residential yard, with the 2^nd tier delineation borings staggered in every other yard.  This is not observed in residential areas surrounding the park.

 

17.              More soil samples are needed in the western section of the site with some concentrated adjacent to the dirt road that ran through the western portion of the site exiting onto Soutel Road.  As stated in the comments on the draft RI/FS Work plan, the investigation must include the area west of Soutel Road, especially the area behind the Walgreens at the intersection of Soutel Road and Moncrief Road and the vacate lot between the baseball field and the park. 

 

18.              The 1997 Site Inspection report sample MP-SS-07 (north section of the site) indicated the presence of ash.  Characterization soil sampling is needed in this area.

 

19.              Previous sampling has indicated the presence of ash in the St. Gabriel’s Church lot and in the area south of Moncrief Road between Richardson Road and the Ribauld River.  Add characterization soil sampling to these areas. 

 

20.              As stated in the comments on the draft RI/FS work plan, The 400 foot sample spacing is too large.  More characterization soil borings are needed across the park.  Grid spacings of 200 feet or less is recommended.  Wider spacings supplemented with geophysical surveys and additional biased sampling would also be acceptable.  

 

21.              A cluster of wells is needed to check for vertical gradients.

 

22.              Monitoring wells are needed between the central drainage ditch and the Ribauld River.  The central drainage ditch is a known ash deposits and the wells should be close to the eastern side of the ditch.