field change request for ou3 groundwater …jeniffer oxford, cdm quality assurance coordinator white...

$: FIELD CHANGE REQUEST FOR OU3 GROUNDWATER …Jeniffer Oxford, CDM Quality Assurance Coordinator White Chemical Field Team \ 1 R2-0014010. Location Proposed Screen Interval (feet bgs)$
-

White Chemical Corporation Superfund Site OU3-Groundwater RIfFS

Newark,NJ

Field Change Request Date: February 2, 2010

Request No.: 1

FCR Title: Change Number of Monitoring Wells to be Installed

Description: The QAPP specified that 19 new monitoring wells would be installed (10 bedrock wells and 9 overburden wells). Based upon discussions with EPA and USACE on November 24, 2009, December 2, 2009 and January 25, 2010, the number of wells to be installed was increased to 28 (9 bedrock wells and 19 overburden wells) see attached Figure.

Reason for Deviation: During the reconnaissance, CDM found that many of the existing third party wells that were planned to be used to collect samples and water level measurement were not accessible, or were not in suitable locations, and therefore additional wells needed to be installed in order to define the nature and extent of contamination at the site. CDM proposed new locations for the 28 bedrock and overburden wells and discussed with EPA and USACE on November 24, 2009 and December 2, 2009. Concurrence regarding the finalized list was obtained on January 25, 2010. Additionally, the screen depths and well material for the overburden monitoring wells were also proposed and discussed during a conference call with EPA and USACE on January 25, 2010. The final number of bedrock and overburden wells and the screen depths and materials of the overburden wells are summarized on the attached table.

RecommendedJModification: Install 28 monitoring wells per discussion with EPA and USACE, as summarized on the attached table.

Impact on Data Quality Objectives: The lack of suitable locations and access for several third party wells would negatively impact the completeness of the data obtained. Therefore, installation of the additional monitoring wells will allow the project data quality objectives to be met.

USACE Contract No.: W912DQ-08-D-0018

Task Order No.: 006

Signatures:

~~ cc: Ray Klimcsak, EPA Remedial Project Manager Kathy Baker, USACE Project Manager Amy Darpinian, USACE Project Chemist

Lisa Campbell, CDM RI Task Manager Jeniffer Oxford, CDM Quality Assurance Coordinator White Chemical Field Team

\ 1

R2-0014010

Location

Proposed Screen Interval

(feet bgs)

Proposed Well

MaterialDepth to Bedrock

(feet bgs)

8" Outer Casing Depth

(feet bgs) RationaleMW-1B WC @ MW-1 cluster TBD TBD 39 41

MW-2D WC @ MW-2 cluster 33-43 SS Estimated at 43 (between bedrock

depths @ 1B and 3B)

NA Nearby GW contamination: MIP08-40 ft bgs (1,2-DCA @ 28,000 µg/L and TCE @ 1,100 µg/L); MIP10-41 ft bgs (1,2-DCA @ 6,500 µg/L)

MW-3B WC @ MW-1 cluster TBD TBD 47 50

MW-6B TBD TBD 36MW-6D 24-34 SS NA Nearby GW contamination: DPT8-37 ft bgs: 1,1,2-TCA @

1,300 µg/L; 1,2-DCA @ 940 µg/L; PCE @ 35 µg/L; TCE @ 570 µg/L

MW-8D 32-42 PVC NA Nearby GW contamination: DPT16-44 ft bgs: 1,1,2-TCA @ 43 µg/L; 1,2-DCA @ 73 µg/L; PCE @ 100 µg/L; TCE @ 110 µg/L

MW-8S 12-22 PVC NA Nearby GW contamination: DPT16-15 ft bgs: PCE @ 160 µg/L; DPT16-20 ft bgs: PCE @ 250 µg/L

MW-9B TBD TBD 42MW-9D 30-40 PVC NA Nearby GW GW contamination: DPT18-39 ft bgs:

1,1,2-TCA @ 44 µg/L; 1,2-DCA @ 200 µg/L; PCE @ 26 µg/L; TCE @ 99 µg/L

MW-10B TBD TBD 46MW-10D 30-40 SS NA Nearby GW contamination: DPT20-39 ft bgs: 1,1,2-TCA @

210 µg/L; 1,2-DCA @ 7,700 µg/L; PCE @ 19 µg/L; TCE @ 330 ug/L

MW-10S 15-25 SS NA Nearby GW contamination: DPT20-20 ft bgs: 1,2-DCA @ 2,100 ug/L

MW-11B TBD TBD 65MW-11D 55-65 PVC NA Nearest DPT boring is DPT 16, which was contaminated at

the terminal depth of 44 ft bgs; assume any contamination would be deeper (top of bedrock) at this location

MW-11S 10-20 PVC NA Screen top of water table

Proposed Monitoring Well Screen Intervals and MaterialsWhite Chemical Superfund Site, OU3 Groundwater

Newark, New Jersey

AB (near DPT18)

AB (NE corner, east of DPT16 and

DPT17)

AB (SW corner near DPT20)

40 (weathered bedrock @ 27)

44 (weathered bedrock @ 35)

65 (weathered bedrock @27)

Well ID

34

Estimated at 42 (between refusal @ DPT16 and DPT26)

WC @ MW-6 cluster

AB (NW corner, between DPT16 and

DPT26)

Proposed Well Screen Intervals

White Chemical proposed well screens and material_020210.xlsx

R2-0014011

Location

Proposed Screen Interval

(feet bgs)

Proposed Well

MaterialDepth to Bedrock

(feet bgs)


(feet bgs) Rationale

Proposed Monitoring Well Screen Intervals and MaterialsWhite Chemical Superfund Site, OU3 Groundwater

Newark, New Jersey

Well ID

Proposed Well Screen Intervals

MW-12B TBD TBD TBDMW-12D 30-40 SS

PVCNA Nearest DPT is DPT14-40 ft bgs: 1,1,2-TCA @ 330 µg/L; 1,2-

DCA @ 2,800 µg/L; TCE @ 1,500 µg/LMW-12S 7-17 PVC NA Screen top of water tableMW-13D 26-36 PVC NA Nearby GW contamination: DPT7-36 ft bgs: TCE @ 21 µg/L

MW-13S 10-20 PVC NA Screen top of water tableMW-14D 26-36 PVC NA Nearby GW contamination: DPT12-36 ft bgs: 1,2-DCA @ 17

µg/LMW-14S 10-20 PVC NA Screen top of water tableMW-15D (Moved to MW-16D)

TBD* PVC NA Depends on depth of bedrock; if bedrock is at 20 ft bgs, propose to delete second well at this location

MW-15S 10-20 PVC NA Nearby GW contamination: DPT 4-20 ft bgs: 1,1,2-TCA @ 58 µg/L; 1,2-DCA @ 160 µg/L; PCE @ 48 µg/L; TCE @ 450 µg/L

MW-16B TBD TBD 31MW-16D (Relocated from MW-15D)

19-29 SS NA Nearby GW contamination: DPT5-30 ft bgs: 1,2-DCA @ 41,000 µg/L; TCE @ 910 µg/L

MW-17B TBD TBD NAMW-17D 25-35 PVC NA Nearby GW contamination: DPT1 TCE @ 11 µg/L

(35 ft bgs) and 13 µg/L (30 ft bgs)MW-17S 10-20 PVC NA Screen top of water table

Notes:AB - Anheuser-Busch ft bgs - feet below ground surfaceNA - Not applicablePVC - Polyvinyl ChlorideSS - Stainless SteelPVC - Polyvinyl ChlorideTBD - To be determinedWC - White Chemical Superfund SiteWell screens for bedrock wells will be determined during up coming bedrock investigation.

687 Frelinghuysen Ave (back of

property)

640 Frelinghuysen Ave (near DPT4)


720 Frelinghuysen (near DPT7)

796 Frelinghuysen Ave (NE corner of

property)

TBD (not yet drilled)Estimate 35

TBD (not yet drilled)Estimate 40

Estimated at 36 (from DPT7 refusal)

Estimated at 36 (from DPT12 refusal)

Estimated at 20 (from DPT3 and DPT4

refusal)


29

White Chemical proposed well screens and material_020210.xlsx

R2-0014012

Proposed Bedrock Wells

Proposed Deep Overburden WellsExisting Monitoring Wells

Frel

ingh

uyse

n Av

enueEmerson PlaceW

hittier Place

North

east

Cor

ridor

646

660

614

780

768

750

740

720

634

610620

687

158

200

600 - 640

702Lowell Place

Dayton Street

Van Duyne Street

CEM-MW-31

MW-1B

MW-11SMW-11D

798796

MW-16D

Weequahic

Lake

634FR-MW-C

768FR-MW-B

768FR-MW-A

WC-MW-4

WC-MW-3D

WC-MW-3S

WC-MW-2

WC-MW-1SWC-MW-1D

WC-MW-7D

WC-MW-7S

WC-MW-6

WC-MW-5D

WC-MW-5S

750FR-MW-B

PENN-MW-37D

CEM-MW-28D

CEM-MW-28S

CEM-MW-29D

CEM-MW-29S

CEM-MW-36

AB-MW-30D

AB-MW-30S

PENN-MW-16S

PENN-MW-16D

PENN-MW-15D PENN-MW-15S

PENN-MW-26D

PENN-MW-12DPENN-MW-12S

MW-17B

MW-3BMW-6B

MW-12B

MW-9B

MW-10B

MW-11B

MW-17S

MW-15S

MW-14S

MW-13S

MW-12S

MW-10S

MW-8S

MW-17D

MW-6D

MW-2D

MW-14D

MW-13D

MW-12D

MW-9D

MW-10D

MW-8D

MW-16BDPT5

DPT6

DPT12

DPT8

DPT9

DPT3

DPT4

DPT2

DPT1

DPT10

DPT7

DPT13

DPT15

DPT11

DPT14

DPT23

DPT24

DPT25

DPT22

DPT20

DPT19

DPT18

DPT17

DPT16

DPT26

DPT21

Figure 1Groundwater Screening Locations and

Proposed Monitoring Well LocationsWhite Chemical Superfund Site, OU3

Newark, New Jersey0 300150

Feet

Legend

E:\IMS\GIS\White_Chemical\MXD\DPT_Well_Locations.mxd

Source: New Jersey Department of Environmental Protection Aerial Photography, 2002.

Groundwater Screening Locations

White Chemical Site BoundaryThird Party Wells

Proposed Shallow Overburden Wells

01/26/2010 7:07:16 PM

R2-0014013

White Chemical Corporation Supe:rfu.nd Site OU3-Groundwater lUfFS

Newark,NJ

Field Change Request

Date: April 16, 2010

Request No.: 2-Revised

FCR Title: 2-inch Nested Bedrock Well Installation

Description: The Quality Assurance Project Plan (QAPP) dated August 10, 2009 specified that 4-inch diameter wells would be installed in the 8-inch diameter bedrock boreholes. However, based on discussions with the Environmental Protection Agency (EPA), the US Army Corp of Engineers (USACE), and the New Jersey Department of Environmental Protection (NJDEP) on April 11 20101 2-inch diameter nested wells will be installed in the following four of the 8-inch diameter bedrock boreholes: MW-1B, MW-6BI MW-llB, and MW-16B. At each of these boreholes, two 2-inch diameter wells will be installed at the depths described below.

Reason for Deviation: Discrete-depth bedrock packer test analytical results were to be used to determine the most appropriate well materials and well screen intervals. Upon review of the packer test analytical results, it was noted that in several bedrock well borings, well screens were needed at more than one interval, in order to define the extent of contamination in the upper 100 feet of bedrock NJDEP indicated that i'nested wells", conSisting of two 2-inch diameter well screen and riser were acceptable to be installed in the 8-inch bedrock boreholes. USACE and EPA agreed that this type of nested well was beneficial for the White Chemical Site.

Recommended/Modification: Insta1l2-inch diameter nested wells at the following borings:

Boring ID WellID Diameter [Material Screen Interval (feet) MW-1B MW-1B1 2-inch stainless steel 73--83

MW-1B2 2-inch stainless steel 95-100 MW-6B MW-6B1 2-inch stainless steel 42-52

MW-6B2 2-inch stainless steel 85-95 MW-llB MW-llB1 2-inch polyvinyl chloride (PVC) 67-77

MW-llB2 2-inchPVC 105-115 MW-16B MW-16Bl 2-inchPVC 43-53

MW-16B2 2-inchPVC 77-87

The nested wells inside the 8-inch casing will be separated by approximately 1 inch inside the 8-inch casing, allowing approximately 1.5 inches between each well casing and borehole wall. This will be accomplished by careful installation and emplacement of annular materials. The filter pack sand (#1) will extend 2-3 feet above the top of the well screen, and 2-3 feet of sand seal (#00) will be emplaced on top of the filter pack The filter pack sand and sand seal will be emplaced via tremie pipe with water to prevent bridging in the annular space. The grout placed between the two screen intervals in nested wells will be allowed to set for 24 hours, and will be checked with a weighted tape to ensure correct depth prior to emplacing the filter pack and seal for the upper screen interval A 2-inch submersible pump will be lowered to the bottom of each well to ensure that the well is plumb and is able to accept sampling equipment.

R2-0014014

All wells will be identified with well tags. The "BI" and '''B2'' intervals in nested wells will be distinguished with a label on the outside of the inner casing.

Impact on Data Quality Objectives: The ability to install nested wells will increase the data available to characterize the nature and extent of contamination at the site, and will therefore allow the project data quality objectives to be met.

USACE Contract No.: W9120Q-OB-O-OOIB

Task Order No.: 006

Mike Ehnot, COM Field Team L~ilJer

c- If!

'&\0Ao"" \~&v~ L\ \ \q t to Sharon Budney ;COM Th5k~rder Manager

cc: Ray Klimcsak, EPA Remedial Project Manager Bill Sy, EPA QA Officer Kathy Baker, USACE Project Manager Amy Darpinian, USACE Project Chemist Lisa Campbell, COM Rl Task Manager Jeniffer Oxford, COM Quality Assurance Coordinator White Chemical Field Team

R2-0014015

Date: Apri127, 2010

Request No.: 3

White Otemical Corporation Superfund Site OU3-Groundwater RIfFS

Newark, New Jersey

Field Otange Request

FCR Title: Change to Round 1 MOnitoring Well Sampling Event - Number of Wells and Analyses.

Description: The Quality Assurance Project Plan (QAPP) dated August 10, 2009 specified that two rounds of monitoring well samples would be collected, and would include 39 monitoring wells (10 existing. 19 new, and 10 third-party wells) for the following laboratory analyses: volatile organic compounds (V0Cs), semivolatile organic compounds (SVOCS), pesticides/ polychlorinated biphenyls (PCBs), metals and mercury (filtered and unfiltered), and wet chemistry parameters. Water level measurements from twenty third-party wells will also be collected.

Due to additional wells installed during this field event, a total of 50 wells will be sampled during Round 1 and all subsequent sampling rounds (11 existing. 32 new, and 7 third-party wells). See the attached table for a list of wells to be sampled, and the attached figure for the locations of the wells to be sampled. In addition, based upon discussions with the US Environmental Protection Agency (EPA) and US Army Corp of Engineers (USACE), the first round of monitoring well sample analyses will eliminate the filtered metals/mercury and wet chemistry parameters.

Reason for Deviations: Thirteen additional monitoring wells were installed during this field program, and one additional existing well that was originally thought to be damaged was found to be suitable to sample; these additional wells will be included in the monitoring well sampling events. Upon review of the groundwater direct push technology (OPT) and packer testing screening results to date, which indicated higher than expected VOC levels in bedrock groundwater, CDM, EPA and USACE decided that additional investigations are necessary, including installation of additional monitoring wells and potential collection of a third round of mOnitOring well samples. Since the second and potential third round of groundwater samples will be collected in the future, the first round of samples do not need a full set of sample analyses. Specifically, the wet chemistry and filtered metals analytical results, which will be used for the Feasibility Study, are not required for all three rounds of samples. Since these analyses will be collected during the second and probably third groundwater sampling rounds, eliminating them from the first sampling round will allow for a more streamlined, efficient, sampling approach.

Recommended/Modification: Sample 50 wells for VOCS, SVOCs, pesticides, PCBs, metals/mercury (unfiltered only) per discussion with EPA and USACE.

Impact on Data Quality Objectives: Sampling the 50 wells on the attached table, including all additional newly-installed wells will allow data quality objectives to be met for these new wells. Reducing the amount of analyses would allow for the first round of groundwater sampling to be more pertinent to the determination of the nature and extent of groundwater contamination.

Pagelof2

I I

R2-0014016

White Otemical Corporation Superfund Site OU3-Groundwater RIfFS

Newark, New Jersey

Field Otange Request

Therefore, the reduction of sample analyses, with the plan that a full analysis will be collected during the second and probable third round, will allow the project data quality objectives to be met.


Task Order No.: 006

cc: Ray Klimcsak, EPA Remedial Project Manager Bill Sy, EPA QA Officer Kathy Baker, USACE Project Manager Amy Darpinian, USACE Project Chemist Lisa Campbell, COM Rl Task Manager Jeniffer Oxford, COM Quality Assurance Coordinator White Chemical Field Team

Page2of2

i i

l

R2-0014017

Date: February 18, 2011

Request No.: 4

White Chemical Superfund Site OU3-Groundwater RJfFS

Newark, New Jersey


FCR Title: Change to Direct-push Teclmology (DPT) and Monitoring Well LocationsSupplemental Field Investigation

Description: The following DPT and monitoring well locations will be changed from those specified in QAPP Addendum No.2 - Supplemental RI Field Activities, dated January 18,2011. The changes are detailed below, and new locations are shown on the attached Figure 1.

• DPT 27 will be moved to the former DPT -28 location on 640 Frelinghuysen Ave • DPT-28 and the MW-18 cluster will be moved to the 634 Frelinghuysen Ave property

Reason for Deviation: The property owner at 614 Frelinghuysen Ave. (DPT-27) denied EPA access to their property, and the property owner at 640 Frelinghuysen (DPT-28 and MW-18 cluster) does not have enough room to install a well cluster. As a result, the DPT-28 and MW-18 cluster will be moved north to the 634 Frelinghuysen property; this new location is well suited to address the needed data gaps northeast of the site. The new DPT-27 location at 640 Frelinghuysen, while not ideal, will help define the VOC plume between the site and the DPT-28/MW-18 cluster. . ..

RecommendedfModification: Move the referenced drilling locations as indicated.

Impact on Data Quality Objectives: Data quality objectives will not be impacted for the DPT-28/MW-18 cluster, since the new location is suited to address the needed data gaps. A data gap will remain at 614 Frelinghuysen, where access was denied for the original DPT-27 location.


Task Order No.: 006

-M-i-keI-E-'lm'-L.>.<o1:t/"ACb'Df7MlVJFl-i-e-AI--T-'--e~ ~

ject Manager

cc: Ray Klimcsak, EPA Remedial Project Manager Bill Sy, EPA QA Officer Amy Darpinian, U~ACE Project Chemist

Lisa Campbell, CDM RI Task Manager Jeniffer Oxford, CDM QA Coordinator White Chemical Field Team

Page 1 of 1

R2-0014018

Weequah

ic Lak

e

Frel

ingh

uyse

n Av

enue

Emerson Place

Whittier Place

North

east

Cor

ridor

646

660

614

780

768

750

740

720

634

610620

687

200

600 - 640

702

Lowell Place

Dayton Stre

et

Van Duyne Street

798796

158

MW-6B3/B4

MW-18B1/B2DPT-28

DPT-27

DPT-29MW-18S

(MW-19S)

MW-18D

Figure 1New DPT Borehole and Monitoring

Well LocationsWhite Chemical Superfund Site, OU3


Feet

\\ednfedsvr1\gis\White_Chemical\MXD\Figure_3.1_Proposed_Groundwater_Screening_and_Monitoring_Well_Locations_November_2010.mxd


LegendWhite Chemical Site BoundaryBedrock WellsShallow Overburden Wells

Deep Overburden Wells

DPT Locations

( ) Optional well

R2-0014019

Date: March 14, 2011

Request No.: 5

White Chemical Corporation Superfund Site OU3-Groundwater RIjFS

Newark, NJ


FCR Title: Addition of 12-Inch Outer Casing at MW-18B (634 Frelinghuysen)

Description This change describes the addition of a 12-inch diameter outer casing at MW-18B to approximately 15 feet below ground surface (bgs). This casing is in addition to the planned 8-inch diameter outer casing to be installed into the top of bedrock.

Reason for Deviation: During drilling at this location, the field crew encountered significant mud loss and hole collapse in the top 9 feet, due to the presence of very loose fill with gravel, sand, and silt! clay. In addition, a one-foot layer was observed from 9-10 feet bgs, described as a black-stained silty gravel with sand and clay, an oily sheen, and odor. No volatile organic compound (VOC) readings were noted on the photoionization detector (PID). This upper zone of loose fill and black-stained material requires a second outer casing to keep the borehole open and to ensure that contamination from the black-stained soil is not carried downward.

Recommended/Modification: Install a 12-inch steel casing to approximately 15 feet bgs, thereby casing off the loose material and the observed black stained material.

Impact on Data Quality Objectives: There are no impacts to project data quality objectives.


Task Order No.: 006

Mike Ehnot, CDM Field T am Leader

~ t Manager

cc: Ray Klimcsak, EPA Remedial Project Manager Bill Sy, EPA QA Officer Amy Darpinian, USACE Project Chemist


R2-0014020


Newark,NJ


Date: March 22, 2011

Request No.: 6

FeR Title: Revised Locations for Supplemental Overburden Wells

Description: This change describes the revised locations of the supplemental overburden wells, based on groundwater screening data. The changes were discussed and approved by USACE and EPA during a conference call on March 14, 2011. The changes are as follows:

• MW-18S will be moved to 640 Frelinghuysen (adjacent to DPT-27), from the planned location at 634 Frelinghuysen (adjacent to DPT-28)

• MW -18D will be deleted • MW-19S, the optional well at the comer of Dayton and Lowell Street (adjacent to DPT-29), will be

installed.

Reason for Deviation: The MW-18S and MW-18D welis were originally planned adjacentto DPT-28 at 634 Frelinghuysen.Ave. However, DPT-28 groundwater screening results revealed high TeE levels, indicating a source located at that property that is unrelated to the White Chemical site .. Since the purpose of this overburden well cluster is to help delineate the northern edge of the White Chemical plume, this location was not appropriate for a shallow well cluster. The more appropriate location is at the 640 Frelinghuysen property, adjacent to DPT -27, although the access agreement for that property did not include monitoring wells. EPA subsequently received permission from the property owner at 640 Frelinghuysen to install a well at that location,.and it was agreed that MW-18S would be moved there. A deeper overburden well was not proposed since deeper soils were clays and silts, and therefore not water-bearing. The MW-19S well was planned to be installed if groundwater screening data indicated that it was a "clean" location. Since only trace levels of VOCs were detected at DPT-29, this is an appropriate location for MW-19S.

Recommended/Modification: Install MW-18S ~d MW-19S at the revised locations described in this FCR.

Impact on Data Quality Objectives: There are no impacts to project data quality objectives; the changed locations were selected to provide representative data.


Task Order No.: 006

~bkk M e Efinot, CDM Field Team Leader

~~ffl anager



R2-0014021

Weequ

ahic

Lake

Frel

ingh

uyse

n Av

enue

Emerson PlaceWhittier Place

Nor

thea

st C

orrid

or

646

660

614

750

740

720

634

610620

687

600 - 640

702

Lowell Place

Dayton Street

Van Duyne Street

DPT-28

MW-6B3/B4

MW-18B1/B2

DPT-27

DPT-29

MW-18S

MW-19S

Figure 1Revised Supplemental Overburden

Monitoring Well LocationsWhite Chemical Superfund Site, OU3


Feet

\\ednfedsvr1\gis\White_Chemical\MXD\Figure_3.1_Proposed_Groundwater_Screening_and_Monitoring_Well_Locations_November_2010.mxd


LegendWhite Chemical Site BoundaryBedrock WellsShallow Overburden Wells

DPT Locations

R2-0014022

Date: May 10, 2011

Request No.: 7

White Chemical Corporation Superfund Site OU3-Groundwater RIjFS

Newark,NJ


FeR Title: ReVisedfClatified Analyses for Round 2 Groundwater Sampling

Description: TItis c ange describes revisions and clarifications to sample analyses during the Round 2 groundwa er sampling event, as follows:

• All samples ~ill be collected for analysis of methane, ethane, ethene (MEE) via method RSK 175. M~E samples will include well and duplicate samples and trip blanks.

• Hardness analysis will be calculated from metals data, rather than being collected for a separate labbratory analysis.

Reason for Deviatiln: MEE analysis was included in the original QAPP (dated August 10, 2009) but inadverte~t1y left out of the QAPP Addendum. Hardness will be done as a calculation for cost ~avings.

Recommended/Mo~1 ification: Collect Round 2 monitoring well samples for MEE analysis; applicable MEE Q1/QC requirements are included in the original QAPP. Determine the hardness from calculations using metals results.

Impact on Data QUllity Objectives: There are no impacts to project data quality objectives.

USACE Contract +.: W912DQ-08-D-0018

Task Order No.: 006

Signatures:

t~ ~Mike Ehnot COM !ield Team Leader

~~",,~


R2-0014023


Newark,NJ


Date: May 24, 2011

Request No.: 8

FeR Title: Final Well Screen Intervals and Well Construction Details I

Description: This change documents the final decisions regarding well depths, materials, and well screen intervals, based on ongoir).g discussions and meetings with USACE and EPA. This FCR does not document changes to the pAPP or QAPP Addendum #2, since these documents indicated that the final well specifications would !be determined in the field; rather, this FCR documents final decisions based on the field data. .

I

Reason for Deviation: The attached table summarizes the final well construction details, depths, screen intervals, and rationale for all monitoring wells installed for the Remedial Investigation, as agreed upon by CDM, USACE, and EPA.·

RecommendedfModifica~ion: Monitoring wells were installed as indicated in the attached table.

Impact on Data Quality Objectives: There are no impacts to project data quality objectives due to this clarification. .

USACE Contract No.: W:9120Q-08-D-0018

Task Order No.: 006

Signatures:

\~~ ~: ~ike Ehnot, CD Field team Leader

~ eject Manager


Lisa Campbell, COM RI Task Manager Jeniffer Oxford, COM QA Coordinator White Chemical Field Team

R2-0014024

Well ID Location

Well Screen Interval (feet

bgs)

Well Diameter/ Material


(feet bgs) RationaleMW-1B1 73-83 2- inch SS This zone is near the top of bedrock; contaminant levels - 1,2-DCE is 12,000 D ug/L and TCE is 720 ug/L.

MW-1B2 95-100 2- inch SS This zone correlates to the bottom packer zone, which had the higest contaminant levels (the bottom zone) (1,2-DCA at 14,000 E to 22,000 D ug/L and TCE at 730 to 870 D ug/L; fractures from 95 to 100 feet bgs).

MW-2D WC @ MW-2 cluster 33-43 4-inch SS NA Nearby groundwater contamination: MIP08-40 ft bgs (1,2-DCA @ 28,000 µg/L and TCE @ 1,100 µg/L); MIP10-41 ft bgs (1,2-DCA @ 6,500 µg/L)

MW-3B1 WC @ MW-3 cluster 52-62 4-inch SS 50 This zone is near the top of bedrock and also has the highest levels in this borehole. 1,2-DCA, TCE, and 1,1,2-TCA detected in all 3 packer intervals; 1,2-DCA and TCE levels decrease with depth. 1,2-DCA: 6,800 D to 11,000 D ug/L; TCE: 200 DJ to 460 D ug/L; 1,1,2-TCA: 57 E to 200 DJ ug/L. Highly weathered/fractured zone in borehole.

MW-6B1 42-52 2- inch SS This zone does not correlate to a packer interval, but is the shallowest 10-foot section with the most fracturing, and is able to fit below the 8" outer casing. It does not have the highest contaminant levels from the packer testing, but does have some of the highest matrix diffusion levels and the highest matrix diffusion mass of 1,2-DCA. This interval covers a highly fractured area, including a large fracture at 44 feet bgs (where the highest matrix diffusion 1,2-DCA result was found at 27,000 ug/kg) and the dipping fracture at ~51 feet bgs (matrix diffusion 1,2-DCA concentration of 10,000 ug/kg). Packer testing results from closest packer interval (36-46 feet bgs): 1,2-DCA (65,000 D ug/L), TCE (900 DJ ug/L), 1,1,2-TCA (930 E ug/L), cis-1,2-DCE (41 E ug/L), and 1,1-DCE (67 E).

WC @ MW-1 cluster

FCR #8Final Monitoring Well Screen Intervals and MaterialsWhite Chemical Superfund Site, OU3 Groundwater

Newark, New Jersey

WC @ MW-6 cluster

65(nested wells)

36(nested wells)

MW-6B2 85-95 2- inch SS This interval has the highest contaminant levels of all the boreholes - 1,2-DCA is 92,000 E ug/L, TCE is 1,600 ug/L, 1,1,2-TCE is 1,500 ug/L.

MW-6B3 114-124 2- inch SS This interval is in the middle of three consecutive focused packer intervals from 105-135. Contaminant results in these three intervals were very similar, indicating that they may be interconnected (1,2-DCA levels ranged from19,000 D -25,000 D ug/L and TCE levels ranged from 380 - 510 E ug/L). This interval covers the most highly fractured area in this zone.

MW-6B4 155-165 2- inch SS Interval includes a highly fractured zone from 159-164, observed to be a major water-bearing zone. 1,2-DCA and TCE levels were also high at this interval (19,000 D and 510 JD ug/L.

MW-6D 24-34 4-inch SS NA Nearby GW contamination: DPT8-37 ft bgs: 1,1,2-TCA @ 1,300 µg/L; 1,2-DCA @ 940 µg/L; PCE @ 35 µg/L; TCE @ MW-8D 30-40 4-inch PVC NA Nearby GW contamination: DPT16-44 ft bgs: 1,1,2-TCA @ 43 µg/L; 1,2-DCA @ 73 µg/L; PCE @ 100 µg/L; TCE @ 110

µg/LMW-8S 12-22 4-inch PVC NA Nearby GW contamination: DPT16-15 ft bgs: PCE @ 160 µg/L; DPT16-20 ft bgs: PCE @ 250 µg/L

MW-9B1 52-62 4-inch PVC 42 VOC levels in this borehole are relatively low, and did not vary much within all five packer intervals. This zone is near the top of bedrock and has the highest contaminant levels in this borehole: 1,2-DCA (20 ug/L), TCE (32 D ug/L), 1,1,2-TCA (16 ug/L), and PCE (9.4 ug/L). Cover fractures from 55-58 and 59.5-61.5.

MW-9D 28-38 4-inch SS NA Nearby GW contamination: DPT18-39 ft bgs: 1,1,2-TCA @ 44 µg/L; 1,2-DCA @ 200 µg/L; PCE @ 26 µg/L; TCE @ 99 µg/L

MW-10B1 48-58 4-inch SS 46 This zone is near the top of bedrock and has the highest contaminant levels: 1,2-DCA (1,300 D ug/L), TCE (100 D ug/L). Although there are nearby A-B and Penick wells just southeast of this location that are screened at similar elevations, none of those wells indicate significant 1,2-DCA contamination; therefore, this well will also serve to monitor the shallow levels of 1,2-DCA just northwest of the Penick site.

MW-10D 28-38 4-inch SS NA Nearby GW contamination: DPT20-39 ft bgs: 1,1,2-TCA @ 210 µg/L; 1,2-DCA @ 7,700 µg/L; PCE @ 19 µg/L; TCE @ 330 ug/L

MW-10S 15-25 4-inch SS NA Nearby GW contamination: DPT20-20 ft bgs: 1,2-DCA @ 2,100 ug/L

AB (NW corner, between DPT16 and

DPT26)

AB (SW corner near DPT20)

AB (near DPT18)

100(nested wells)Note: 12-inch casing to 38)

A 1 of 2

R2-0014025

Well ID Location

Well Screen Interval (feet

bgs)

Well Diameter/ Material


(feet bgs) Rationale

FCR #8Final Monitoring Well Screen Intervals and MaterialsWhite Chemical Superfund Site, OU3 Groundwater

Newark, New Jersey

MW-11B1 67-77 2- inch PVC VOC levels in this borehole are relatively low, and did not vary much within all five packer intervals; however, it is the eastern-most bedrock well. This zone is near the top of bedrock; highly fractured area of borehole.

MW-11B2 105-115 2- inch PVC Some of highest levels are in this zone: 1,2-DCA (22 ug/L), TCE (30 ug/L), 1,1,2-TCA (7.6 ug/L), and PCE (11 ug/L). Cover fractures at 103-105, 106, and 107 feet bgs.

MW-11D 52-62 4-inch PVC NA Nearest DPT boring is DPT 16, which was contaminated at the terminal depth of 44 ft bgs; assume any contamination would be deeper (top of bedrock) at this location

MW-11S 10-20 4-inch PVC NA Screen top of water tableMW-12B1 59-69 4-inch PVC 52 VOC levels in this borehole are relatively low, and did not vary much within all five packer intervals (1,2-DCA ranges

from 1.9 to 5.1 ug/L). This zone is near the top of bedrock; cover fractures from 61-64, 65, and 68 feet bgs.

MW-12D 28-38 4-inch PVC NA Nearest DPT is DPT14-40 ft bgs: 1,1,2-TCA @ 330 µg/L; 1,2-DCA @ 2,800 µg/L; TCE @ 1,500 µg/LMW-12S 7-17 4-inch PVC NA Screen top of water tableMW-13D 26-36 4-inch PVC NA Nearby GW contamination: DPT7-36 ft bgs: TCE @ 21 µg/LMW-13S 10-20 4-inch PVC NA Screen top of water tableMW-14D 26-36 4-inch PVC NA Nearby GW contamination: DPT12-36 ft bgs: 1,2-DCA @ 17 µg/LMW-14S 10-20 4-inch PVC NA Screen top of water table


720 Frelinghuysen (near DPT7)

796 Frelinghuysen Ave (NE corner of

property)

AB (NE corner, east of DPT16 and

DPT17)

65(nested wells)

MW-15S 640 Frelinghuysen (near DPT2)

10-20 4-inch PVC NA Nearby GW contamination: DPT 4-20 ft bgs: 1,1,2-TCA @ 58 µg/L; 1,2-DCA @ 160 µg/L; PCE @ 48 µg/L; TCE @ 450 µg/L

MW-16B1 43-53 2- inch PVC This is the shallowest full interval below the casing at 31' bgs; VOC levels in this zone: 1,2-DCA (140 ug/L) and TCE (12 ug/L); cover several small horizontal fractures throughout zone, and a vertical fracture from 48-53 feet bgs.

MW-16B2 77-87 2- inch PVC This zone has the highest VOC levels: 1,2-DCA is 1,200 E ug/L, TCE is 72 ug/L; cover fractures from 80-82 feet bgs.MW-16D 19-29 4-inch SS NA Nearby GW contamination: DPT5-30 ft bgs: 1,2-DCA @ 41,000 µg/L; TCE @ 910 µg/LMW-17B1 63-73 4-inch PVC 55 Monitor up/sidegradient levels. To correspond with onsite screen zones (MW-16B at 43-53 and 77-87 feet bgs, MW-6B

at 42-52 and 60-70 feet bgs, and MW-3B at 52-62 feet bgs). Cover fractures at 64, 65.5, and 72 feet bgs.

MW-17D 25-35 4-inch PVC NA Nearby GW contamination: DPT1 TCE @ 11 µg/L; (35 ft bgs) and 13 µg/L (30 ft bgs)MW-17S 10-20 4-inch PVC NA Screen top of water tableMW-18B1 68-78 2- inch SS 57 Monitor top of bedrock. This interval exhibited the highest contaminant concentrations - 28,000 D ug/L of 1,2-DCA;

1,000 JD ppb TCE (may be at least partly from a local source); exhibited several discrete fractures, and yielded 2.1 L/m with 6.8 feet of drawdown; indicating sufficient yield for a well.

MW-18B2 285-295 2- inch SS 50(Note: 12-inch casing to 15.5)

1,2-DCA and TCE levels were much lower than the 60-70 interval, but still elevated (7,100 D and 220 ug/L).Interval includes two discrete fractures at 285-287 feet and yielded about 2 L/m with 101 feet of drawdown, suggesting sufficient yield for a well. Downward flow measured by HPFM at 282' bgs may exit the borehole through thefractures at 285 287'MW-18S 646 Frelinghuysen

(near DPT27) 10-20 4-inch PVC NA Monitor northern edge of plume in shallow overburden; screen zone of 20-30 feet bgs chosen due to presence of sand

at this interval; soil above and below this zone is silty clay and did not produce water during DPT groundwater sampling.MW-19S Dayton & Lowell

(near DPT29) 20-30 4-inch PVC NA Provide "background" concentrations in area not affected by site contamination (DPT-29 indicates only very low levels

of VOCs).Notes:AB - Anheuser-Busch PVC - polyvinyl chloridebgs - below ground surface SS - stainless steelNA - not applicable WC - White Chemical

634 Frelinghuysen


687 Frelinghuysen Ave (back of

property)

31(nested wells)

A 2 of 2

R2-0014026

Date: August 10, 2011

Request No.: 9

White Chemical Corporation Superfund Site OU3-Groundwater RI/FS

Newark, New Jersey


FCR Title: Change to Round 3 Groundwater Sampling Program

Description: This field change documents the change to the Round 3 groundwater sampling program. Eleven wells will be included during the limited Round 3 groundwater sampling, rather than a full round from all wells (MW-6B3, MW-6B4, MW-18S, MW-18B1, MW-18B2, MW-19S, 634FR-MW-C, PEN-MW-12B, PEN-MW-14D, PEN-MW-1SD, PEN-MW-17B). These wells will be sampled for the following analyses, as indicated in the QAPP Addendum #2, dated January 18, 2011: Volatile Organic Compounds, Semi-Volatile Organic Compounds, Pesticides, Polychlorinated Biphenyls, Filtered and Unfiltered Metals and Mercury, Methane/Ethane/Ethene, Ammonia, Chemical Oxidant Demand, Total Organic Carbon, Sulfide, Biochemical Oxygen Demand, and Volatile Fatty Acids. Samples will be sent for 7-day turnaround analysis to CDMs subcontract laboratory. All data will be validated by CDM in accordance with the QAPP. In addition, the Round 3 sampling event will take place in August 2011 rather than in the fall, which was originally planned to obtain results to determine seasonal effects to levels of contamination.

Reason for Deviation: Round 3 will only include the eleven wells that were added during Round 2, rather than the full set of wells, in order to provide a second set of data for the added wells. The samples will be analyzed utilizing a 7 -day turnaround time in order to include the data in the draft Remedial Investigation (RI) Report. The United States Environmental Protection Agency (EPA) has requested that CDM include this data in the RI rather than preparing a separate RI Addendum. In addition, the Round 3 sampling event will be held during the summer 2011 rather than the fall 2011 in order to meet the project schedule.

RecommendedjModification: Sample the eleven wells listed above for the parameters described above. Send the samples to CDM's subcontract laboratory to obtain data within 7 days, and have CDM perform all data validation.

Impact on Data Quality Objectives: Round 3 sampling will provide a second set of data for the eleven additional wells, for comparison with the Round 2 data; the impact of not collecting an entire round of data is minimal. The impact of not collecting a full round in the fall is that seasonal variations of the aquifer and its effects on VOC levels will not be evaluated; however, these seasonal variations are not expected to have a significant impact on the data.


Task Order No.: 006

R2-0014027

Signatures:

~-'''-' ike Elmot, CDM Field Team Leader

Sharon Budney, CDM PrO] ct Manager



R2-0014028

field change request for ou3 groundwater …jeniffer oxford, cdm quality assurance coordinator white...

Documents