RE: MOM Monthly Operations Report for September 2013 ...The headloss in ABR-2 has been reduced...

AECOM 978.905.2100 tel 250 Apollo Drive 978.905.2101 fax

Chelmsford, MA 01824

December 20, 2013

Mr. Joseph LeMay, P.E. ReSolve Remedial Project Manager US EPA Region 1 Five Post Office Square, Suite 100 Mail Code: OSRR07-4 Boston, MA 02109-3912

RE: MOM Monthly Operations Report for September 2013; ReSolve Superfund Site; North Dartmouth, MA

Dear Mr. LeMay,

On behalf of the ReSolve Site Group, enclosed is the ReSolve Management of Migration Monthly Operations Report for September 2013, prepared by Weston Solutions, Inc.

If you have any questions regarding this information, please do not hesitate to call me.

Sincerely,

Joseph Charbonnier Project Manager

Enclosure:

cc: D. Allen, DEP M. Last, Rackemann, Sawyer & Brewster M. Worthy, Tetra Tech D. Baxter, Nobis

Weston Solutions, Inc. Suite 100 45 Constitution Avenue Concord, NH 03301 www.westonsolutions.com

18 December 2013

Mr. Joe Charbonnier AECOM 250 Apollo Drive Chelmsford, MA 01824 Work Order No. 11606.001.011

Subject: September 2013 Monthly Operations and Anaerobic Bioreactor Transition Report

Management of Migration Remedial Action ReSolve, Inc. Superfund Site

Dear Joe:

This letter presents a summary, for the month of September 2013, of the operations, maintenance, and monitoring activities conducted at the ReSolve, Inc. Superfund Site. It includes monthly operational data and information concerning transition activities for the Sustainability Enhancements, consisting of the anaerobic bioreactor (ABR) and solar photovoltaic systems.

I. General Facility Operations

The Management of Migration groundwater extraction system operated throughout September 2013 in Phase 5 of the ABR transition period. All eight extraction wells operated at their target flow rates (2 gallons per minute [gpm] for RW-6; 3 gpm for RW-2; and 5 gpm for RW-1, RW-3, RW-4, RW-5, RW-7, and RW-8), which total 35 gpm. The treatment system processed 1,517,600 gallons of groundwater during September 2013 and was down for 3 hours for maintenance activities. Additional details on the ABR transition program are provided in Section III of this report. Routine and non-routine maintenance activities are described in Sections V and VI of this report, respectively.

The phase separator was monitored weekly for dense nonaqueous phase liquid (DNAPL). Some precipitated metals were present in the phase separator, but no DNAPL was observed. The filter press was not operated during September 2013. There was one half-full 1-cubic-yard container of dewatered sludge on-site as of 30 September.

II. Facility Performance Monitoring

The groundwater extraction and treatment system operated in compliance with the Consent Decree during the month of September 2013. Sampling of the treatment facility effluent was conducted on 3 September, in accordance with the requirements of the Field Operations Support Plan (FOSP) and Transition and Monitoring Plan. For the polychlorinated biphenyl (PCB) analysis, the U.S. Environmental Protection Agency (EPA) Method 105, 680/8270 SIM was used instead of EPA Method 8082, which is typically used to analyze samples from the ReSolve Site for polychlorinated biphenyls (PCBs). This method was used in order to provide a

http:www.westonsolutions.com

Mr. Joe Charbonnier AECOM -2- 18 December 2013

reporting limit less than 0.004 micrograms per liter (µg/L), the NPDES Equivalency Discharge Limit for total PCBs. The analytical results of the monthly effluent monitoring and the process monitoring of the ABR system are attached in Tables 1 through 4.

Continuous monitoring of the effluent pH indicated no exceedances of the pH discharge criteria (6.5 to 8.3). Figure 1 is a graph of the effluent pH for the month of September 2013.

Effluent toxicity testing was conducted on 16 through 20 September. The laboratory report for the toxicity testing is provided in Attachment I, and the results are summarized below. There were no exceedances of the acute and chronic effluent toxicity criteria for the Site.

Toxicity Test Criterion Result

48-Hour Acute Median lethal concentration (LC50) must be equal to or greater than 100% effluent.

Passed. – The LC50 exceeded 100% effluent for both species (fathead minnow and daphnia).

7-Day Chronic The Chronic No Observed Effect Concentration (C-NOEC) must be equal to or greater than 17% effluent.

Passed. – The C-NOEC was 100% effluent for survival and growth of both species (fathead minnow and daphnia).

III. Anaerobic Bioreactor System Performance and Monitoring

ABR Bed Flow Restriction

Operation of the degassing membrane system, which commenced in August 2013, continued throughout September 2013 in the configuration shown in Figure 2. The membrane continued to provide highly degassed influent to the ABR beds (-44 to -35 mm Hg total dissolved gas [TDG] as shown in Table 4), which resulted in further reductions in the headloss in ABR-1 and a stabilizing of the headloss in ABR-2. The headloss in ABR-2 has been reduced sufficiently to allow ABR-2 to process the full 35-gpm treatment system flow rate.

Figure 3 is a graph of the headloss in the ABR beds, normalized to flow (in feet of headloss per gpm). Figure 3 shows a significant reduction in the headloss in ABR-1 commencing in August 2013 and continuing throughout the month of September 2013. As of 31 September, ABR-1 was processing 12.5 gpm at 3.04 feet of water headloss, a very significant improvement in comparison to conditions (7 gpm at 4.5 feet of water headloss) prior to treatment of the ABR-1 influent by the degassing membrane. Because the degassing membrane has performed reliably and resulted in significant headloss reductions in both ABR beds, a second degassing membrane will be procured and installed during October 2013. The purpose of the second degassing membrane is to provide degassing of the effluent from ABR-1, which is laden with dissolved gas (21 to 43 mm Hg TDG as shown in Table 4) and, thereby, prevent gases dissolved in the effluent from ABR-1 from being transported to, and possibly having a negative impact on, ABR-2. It will also provide desirable redundancy for the dissolved gas removal process.

2013-09.DOCX


ABR System Performance Monitoring

Graphs of the four most predominant VOCs in the treatment plant influent (cis-1,2dichloroethene [cDCE], vinyl chloride [VC], 1,1,1-trichloroethane [111TCA], and 1,1-dichloroethane [11DCA]) are provided in Figures 4 through 7, respectively. Figure 8 shows the concentration of ethene, which is a product of the reductive dechlorination of VC, in the effluent from ABR-1 and ABR-2. The VOC data are tabulated in Table 2.

The data continue to show very good breakdown of cDCE, VC, and 111TCA in the ABR beds. In September 2013, the concentrations of those three compounds were all less than the Discharge Limits in the effluent of the ABR beds (upstream of the polishing carbon). For example, on 3 September, the 340 micrograms per liter (µg/L) of cDCE in the ABR influent were reduced to 1.9 µg/L and 15 µg/L in the effluent from ABR-1 and ABR-2, respectively. For VC, the 150 µg/L in the ABR influent on 3 September were reduced to 1.3 µg/L and 21 µg/L in the effluent from ABR-1 and ABR-2, respectively.

The concentration of 11DCA has been higher in the ABR effluent than in the ABR influent because of the very effective dechlorination of 111TCA and the limited dechlorination of 11DCA. Reductive dechlorination of 11DCA typically does not occur until the other chlorinated VOCs present in the ABR influent have been substantially removed. Some reductive dechlorination of 11DCA is occurring in both beds, and the concentration of 11DCA in the effluent from ABR-1 and ABR-2 is generally trending downward. On 3 September, the concentration of 11DCA in the effluent from ABR-1 was 15 µg/L, which is less than the Discharge Limit (22 µg/L) for that compound. The concentration of 11DCA in the effluent from ABR-2 (28 µg/L on 3 September) has also been trending downward but, as of 3 September, was still greater than the Discharge Limit. The polishing carbon provided the treatment necessary to reduce the 11DCA concentration to less than the Discharge Limit. The concentration of 11DCA will be monitored closely, and changeout of the polishing carbon will be conducted if necessary in order to prevent an exceedance of the 22 µg/L Monthly Average Discharge Limit for 11DCA.

IV. Solar Photovoltaic System

The solar photovoltaic (PV) system has operated continuously since starting commercial operation on 21 February 2012, and has generated a maximum of 127 kilowatts AC during midday when the sun is shining. The solar PV system generated 18,103 kilowatt-hours (KWH) of electricity during September 2013. As of 30 September 2013, the solar PV system has generated a total of 337,753 KWH since 21 February 2012, the official start date of the solar system.

2013-09.DOCX


V. Scheduled Preventive Maintenance

The submersible well pumps were removed from the extraction wells for cleaning as follows:

RW-3 9 September

RW-7 27 September

After removal from the wells, the pump heads were detached from the motor and replaced with a clean pump head. The dirty pump heads were cleaned and prepared for reuse. The pipelines from RW-3 and RW-7 to the treatment plant were cleaned using jet-rodding procedures on 9 and 27 September, respectively.

The individual extraction well flow rates were calibrated on 25 September. The pipeline from the Influent/Equalization Tank (T-1) to the pretreatment carbon system was cleaned using jet-rodding procedures on 4 September. The effluent pipeline was cleaned using jet rodding procedures on 20 September.

The degassing membrane was cleaned using a muriatic acid solution once weekly during the month of September 2013. The cleaning process removes iron fouling from the membrane, thereby maximizing the degassing performance of the membrane. Scheduled maintenance activities conducted during September 2013 that did not result in facility downtime were conducted in accordance with the Operations and Maintenance Manual. Documentation of all maintenance activities is maintained on-site.

VI. Unscheduled Maintenance/Issue Resolution

There were no unscheduled maintenance activities during the month of September 2013.

VII. Materials Usage and Spare Parts Inventory

Chemical consumption for the month of September 2013 was as follows:

Sodium Hydroxide (25%) 57 gallons

Table 5 is a comparison of monthly chemical use at the Site for September 2013 and the previous 24-month period. Documentation of chemical use since startup of the groundwater treatment system in 1998 is maintained on-site. There were no changes to the spare parts inventory during September 2013. A copy of the spare parts inventory is maintained on-site.

VIII. Environmental Performance Monitoring

Wetlands soil moisture monitoring

The annual Cornell Pond fishing derby and biannual fish tissue sampling event.

2013-09.DOCX


IX. Projected Activities for October 2013

Continued performance monitoring and optimization of the membrane degassing system. As the headloss decreases in ABR-1, the flow rate of process water through that bed will be increased.

Procurement and installation of a second degassing membrane to provide treatment of the ABR-1 effluent before it is processed through ABR-2. Installation of the second membrane will allow the system to be configured in partial series operation, with less than the full 35-gpm flow rate being processed through ABR-1 and the full 35-gpm flow rate being processed through ABR-2.

If you have any questions concerning WESTON’s activities at the ReSolve, Inc. Superfund Site, please contact me at (603) 656-5412.

Sincerely,

WESTON SOLUTIONS, INC.

Frederick R. Symmes, P.E. Project Manager Attachments

FRS:kmc

cc: Michael P. Last, Esquire Michael Worthy, P.E. (Tetra Tech, Inc.) John Pardue, (LSU) James Saylors (WESTON)

2013-09.DOCX

TABLE 1

Comparison of Effluent Analytical Results to NPDES Permit Equivalency Requirements

Management of Migration Groundwater Extraction and Treatment System ReSolve, Inc. Superfund Site

Sample ID M15-090313 NPDES Permit Equivalency Limits

Parameter

3-Sep-13

(g/L) Daily Maximum Average Monthly

(g/L) (g/L)Volatile Organics

Acetone 5.0 U 3,000 3,000 Benzene 0.50 U 134 57 2-Butanone (MEK) 5.0 U 350 350 Chlorobenzene 1.0 U 380 142 Chloroethane 3.3 295 110 Chloroform 1.0 U 325 111 1,1-Dichloroethane 5.6 59 22 1,2-Dichloroethane 1.0 U 574 180 1,1-Dichoroethene 1.0 U 60 22 1,2-Dichloroethene (total) 2.7 66 25 Ethylbenzene 0.50 U 380 142 4-Methyl-2-Pentanone (MIBK) 5.0 U 350 350 Methy-tert-butyl-ether (MTBE) 1.0 U None None Methylene Chloride 5.0 U 170 36 Tetrachloroethene 1.0 U 164 52 Toluene 0.50 U 74 28 1,1,1-Trichloroethane 1.0 U 59 22 1,1,2-Trichloroethane 1.0 U 127 32 Trichloroethene 0.50 U 69 26 Vinyl Chloride 1.5 172 97

Semivolatile Organics Acenaphthene NA 59 22 bis(2-Ethylhexyl)phthalate NA 279 103 Di-n-butylphthalate NA 57 27 1,2-Dichlorobenzene NA 794 196 1,3-Dichlorobenzene NA 380 142 1,4-Dichlorobenzene NA 380 142 2,4-Dimethylphenol NA 36 18 Isophorone NA 350 350 Naphthalene NA 59 22 Phenol NA 26 15 1,2,4-Trichlorobenzene NA 794 196

Page 1 of 2NPDES.xlsx 12/16/2013

TABLE 1

Comparison of Effluent Analytical Results to NPDES Permit Equivalency Requirements


(continued)

Sample ID M15-090313 NPDES Permit Equivalency Limits

Parameter

3-Sep-13

(g/L) Daily Maximum

(g/L) Average Monthly

(g/L) Metals

Arsenic 3.2 J 7,310 12 Beryllium 4.0 U 2,795 11 Cadmium 0.50 U 22 3.2 Chromium (total) 1.1 J 344 237 Copper 10 U 151 108 Iron 13,000 21,500 21,500 Lead 5.0 U 731 28 Manganese 1,500 2,150 2,150 Mercury 0.20 U 30 2.8 Nickel 10 U 5,601 621 Silver 5.0 U 22 NC Zinc 20 U 1,400 1,413

PCBsa 0.0035 U 0.004 0.004 TSS 5,000 U None None Ammonia NA None None TOC NA None None Cyanide (Total) NA None None

Notes: U = Analyte not detected in the sample. Reporting limit shown. a The PCB was analyzed by EPA Method 105, 680/8270 SIM(M) for total PCBs

by chlorination level. The PCB results are detailed in Table 2. J = Estimated concentration below the sample reporting limit.

NA = Not Analyzed. g/L = micrograms per liter

PCBs = polychlorinated biphenyls TSS = Total suspended solids

TOC = Total organic carbon

Page 2 of 2NPDES.xlsx 12/16/2013

TABLE 2

Results of Analysis by EPA Method 105, 680/8270 SIM(M)

for Total PCBs by Chlorination Level


Sample ID> S9-090313 NPDES Permit Equivalency LimitsSample Location> Plant Effluent

Sample Date> 3-Sep-13 Daily Maximum (pg/L)

Average Monthly (pg/L)Parameter (pg/L)

PCB Homolog Totals Monochlorobiphenyl 500 U None None Dichlorobiphenyl 920 None None Trichlorobiphenyl 1,560 None None Tetrachlorobiphenyl 1,060 None None Pentachlorobiphenyl 500 U None None Hexachlorobiphenyl 500 U None None Heptachlorobiphenyl 500 U None None Octachlorobiphenyl 500 U None None Nonachlorobiphenyl 500 U None None Decachlorobiphenyl 500 U None None Total PCBs 3,540 4,000 4,000

Notes: pg/L = picograms/liter. (1 pg/L = 10-6 g/L) U = Analyte not detected in the sample. Reporting limit shown.

PCB = polychlorinated biphenyl

Page 1 of 1G:\projects\11606001\006\mnthrpt\2004/NPDESCOPY.xlsx 12/16/2013

TABLE 3

VOC Concentrations at Sample Locations Throughout Groundwater Treatment System Phases 4 and 5 of Anaerobic Bioreactor Transition Monitoring Program

ReSolve, Inc. Superfund Site

Compound Type Compound Sampling Location >> GWTP Influent

Pre-Treatment Carbon Effluent

ABR-1 Effluent

ABR-2 Effluent

Polishing Carbon Mid-

Point

Polishing Carbon Effluent

Treatment Plant

Effluent CommentsNPDES Permit Equivalency

Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Chlorinated Ethenes

Tetrachloroethene 9/24/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 164 52 10/3/2012 4 4.1 0.6 J 1.0 U 1.0 U 1.0 U NS 1.0 U

10/11/2012 4 NS 1.7 1.0 U 1.0 U 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 5.1 0.36 J 1.0 U 1.0 U 1.0 U NS 1.0 U

11/15/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 12/3/2012 4 4.1 0.7 J 1.0 U 1.0 U 1.0 U NS 1.0 U

12/20/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 5.4 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

1/16/2013 4 NS 0.60 J 1.0 U 1.0 U 1.0 U NS 1.0 U 2/5/2013 4 7.5 0.82 J 1.0 U 1.0 U 1.0 U NS 1.0 U

2/19/2013 5 NS 0.93 J 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 6.4 1.1 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U

3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 1.7 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 5/6/2013 5 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U

6/12/2013 5 NS 0.86 J 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 7/9/2013 5 NS 1.3 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 8/7/2013 5 5.3 0.9 J 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 9/3/1913 5 NS 1.0 U 1.0 U 1.0 U NS 1.0 U 1.0 U

Trichloroethene 9/24/2012 4 NS 1.2 0.50 U 0.94 0.50 U NS 0.50 U Phase 4 started on 9/24/12 69 26 10/3/2012 4 8.2 1.3 0.50 U 0.87 0.50 U NS 0.50 U

10/11/2012 4 NS 4.0 0.41 J 0.66 0.50 U NS 0.50 U 10/18/2012 4 NS 0.50 U 0.50 U 0.31 J 0.50 U NS 0.50 U 11/1/2012 4 9.7 0.94 0.26 J 0.50 U 0.50 U NS 0.50 U

11/15/2012 4 NS 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U 12/3/2012 4 11 2.0 0.32 J 0.50 U 0.50 U NS 0.50 U

12/20/2012 4 NS 0.76 0.33 J 0.50 U 0.50 U NS 0.50 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 11 0.74 0.28 J 0.50 U 0.50 U NS 0.50 U

1/16/2013 4 NS 1.1 0.50 U 0.50 U 0.50 U NS 0.50 U 2/5/2013 4 12 2.3 0.50 U 0.50 U 0.50 U NS 0.50 U

2/19/2013 5 NS 2.2 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U Phase 5 started on 2/13/13 3/6/2013 5 13 2.9 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U

3/20/2013 5 NS NS NS NS NS NS 0.50 U 4/3/2013 5 NS 4.1 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 5/6/2013 5 NS 1.4 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U

6/12/2013 5 NS 2.5 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 7/9/2013 5 NS 3.3 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 8/7/2013 5 11 3.4 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 9/3/1913 5 NS 3.6 0.50 U 0.39 J NS 0.50 U 0.50 U

Page 1 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Chlorinated Ethenes cis-1,2-Dichloroethene

9/24/2012 4 NS 76 15 19 1.0 U NS 1.0 U Phase 4 started on 9/24/12 66 25 10/3/2012 4 340 130 28 26 1.0 U NS 1.0 U

10/11/2012 4 NS 170 23 19 1.0 U NS 1.0 U 10/18/2012 4 NS 36 25 18 1.0 U NS 1.0 U 11/1/2012 4 280 65 26 16 1.0 U NS 1.0 U

11/15/2012 4 NS 94 37 34 1.1 NS 1.0 U 12/3/2012 4 310 93 40 33 3.0 NS 1.0 U

12/20/2012 4 NS 140 50 38 5.6 NS 1.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 300 150 39 19 9.6 NS 1.0 U

1/16/2013 4 NS 270 33 14 15 NS 1.0 U 2/5/2013 4 360 240 16 7.4 18 NS 1.0 U

2/19/2013 5 NS 240 13 5.0 18 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 440 270 10 5.7 20 1.0 U 1.0 U

3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 350 14 6.0 23 1.0 U 1.0 U 5/6/2013 5 NS 130 4.4 4.6 20 1.0 U 1.0 U

6/12/2013 5 NS 300 5.0 28 19 0.86 J 1.0 U 7/9/2013 5 NS 290 3.7 12 21 1.6 1.0 U 8/7/2013 5 350 300 2.5 4.2 20 3.2 2.1 9/3/2013 5 NS 340 1.9 15 NS 4.8 2.7

1,1-Dichloroethene 9/24/2012 4 NS 0.76 J 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 60 22 10/3/2012 4 3.5 1.6 1.0 U 1.0 U 1.0 U NS 1.0 U

10/11/2012 4 NS 2.2 0.68 J 0.8 J 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 3.0 0.64 J 0.55 J 0.48 J 1.0 U NS 1.0 U

11/15/2012 4 NS 1.2 1.0 U 1.0 U 1.0 U NS 1.0 U 12/3/2012 4 3.5 1.0 1.0 U 1.0 U 1.0 U NS 1.0 U

12/20/2012 4 NS 1.6 1.0 U 1.0 U 1.0 U NS 1.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 4.7 2.2 1.0 U 1.0 U 1.0 U NS 1.0 U

1/16/2013 4 NS 2.7 1.0 U 1.0 U 1.0 U NS 1.0 U 2/5/2013 4 4.4 2.9 1.0 U 1.0 U 1.0 U NS 1.0 U

2/19/2013 5 NS 2.4 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 5.6 3.3 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U

3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 5.0 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 5/6/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U

6/12/2013 5 NS 3.1 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 7/9/2013 5 NS 3.0 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 8/7/2013 5 4 3.3 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 9/3/2013 5 NS 2.9 1.0 U 1.0 U NS 1.0 U 1.0 U

Page 2 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Chlorinated Ethenes

Vinyl Chloride 9/24/2012 4 NS 81 43 35 15 NS 1.4 Phase 4 started on 9/24/12 172 97 10/3/2012 4 240 150 55 45 25 NS 2.2

10/11/2012 4 NS 170 50 49 39 NS 7.4 10/18/2012 4 NS 120 47 42 40 NS 9.0

11/1/2012 4 170 77 50 44 41 NS 21 11/15/2012 4 NS 150 58 49 43 NS 32

12/3/2012 4 180 160 60 43 45 NS 37

12/20/2012 4 NS 170 63 48 52 NS 42 Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 140 130 40 18 45 NS 51

1/16/2013 4 NS 170 25 14 40 NS 47 2/5/2013 4 150 150 13 6.6 28 NS 48

2/19/2013 5 NS 160 12 6.5 21 61 48 Phase 5 started on 2/13/13 3/6/2013 5 190 180 9.9 9.7 18 56 41

3/20/2013 5 NS NS NS NS NS NS 30 4/3/2013 5 NS 190 15 11 17 36 31 5/6/2013 5 NS 140 4.1 5.3 10 19 0.50

6/12/2013 5 NS 180 6.2 45 11 16 0.83 7/9/2013 5 NS 150 4.5 17 19 19 0.50 U 8/7/2013 5 180 180 1.9 7.5 9.9 20 3.9 9/3/2013 5 NS 150 1.3 21 NS 14 1.5

Chlorinated Ethanes

1,1,1-Trichloroethane 9/24/2012 4 NS 12 2.3 1.3 1.0 U NS 1.0 U Phase 4 started on 9/24/12 59 22 10/3/2012 4 42 23 2.3 1.3 1.0 U NS 1.0 U

10/11/2012 4 NS 28 4.3 3.5 1.0 U NS 1.0 U 10/18/2012 4 NS 10 2.7 3.8 1.0 U NS 1.0 U 11/1/2012 4 45 10 3.5 3.5 1.0 U NS 1.0 U

11/15/2012 4 NS 24 6.3 5.4 1.0 U NS 1.0 U 12/3/2012 4 50 18 4.7 5.5 1.0 U NS 1.0 U

12/20/2012 4 NS 31 6.1 7.6 1.0 U NS 1.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 50 27 6.4 6.7 1.0 U NS 1.0 U

1/16/2013 4 NS 34 7.3 8.7 1.0 U NS 1.0 U 2/5/2013 4 51 34 6.5 6.7 1.0 NS 1.0 U

2/19/2013 5 NS 33 5.4 4.7 1.0 J 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 62 41 5.5 4.7 1.2 1.0 U 1.0 U

3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 48 4.0 4.5 1.5 1.0 U 1.0 U 5/6/2013 5 NS 17 0.77 1.6 1.4 1.0 U 1.0 U

6/12/2013 5 NS 40 1.0 U 2.4 1.2 1.0 U 1.0 U 7/9/2013 5 NS 43 1.0 U 2.7 1.3 1.0 U 1.0 U 8/7/2013 51 42 1.0 U 1.8 0.76 J 1.0 U 1.0 U 9/3/2013 5 NS 38 1.0 U 1.0 U NS 1.0 U 1.0 U

Page 3 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Chlorinated Ethanes

1,1-Dichloroethane 9/24/2012 4 NS 5.0 8.9 8.3 1.0 U NS 1.0 U Phase 4 started on 9/24/12 59 22 10/3/2012 4 14 8.2 9.3 7.4 1.0 U NS 1.0 U

10/11/2012 4 NS 9.5 10 11 0.71 J NS 1.0 U 10/18/2012 4 NS 7.0 12 11 1.1 NS 1.0 U 11/1/2012 4 12 3.5 11 12 2.0 NS 1.0 U

11/15/2012 4 NS 11 12 12 3.7 NS 1.0 U 12/3/2012 4 11 5.0 12 10 5.1 NS 1.0 U

12/20/2012 4 NS 9.8 13 15 6.0 NS 1.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 10 8.0 15 18 7.1 NS 1.0 U

1/16/2013 4 NS 14 28 32 12 NS 1.0 U 2/5/2013 4 11 10 21 29 13 NS 1.0 U

2/19/2013 5 NS 11 23 29 15 1.0 0.99 J Phase 5 started on 2/13/13 3/6/2013 5 15 13 26 35 17 1.6 1.4

3/20/2013 5 NS NS NS NS NS NS 2.3 4/3/2013 5 NS 14 37 49 26 3.3 3.4 5/6/2013 5 NS 5 28 33 29 5.6 0.79 J

6/12/2013 5 NS 11 19 30 23 7.9 2.2 7/9/2013 5 NS 12 28 40 32 9.1 1.9 8/7/2013 17 14 22 41 34 12 7.2 9/3/2013 5 NS 12 15 28 NS 13 5.6

Chloroethane 9/24/2012 4 NS 1.1 1.4 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 295 110 10/3/2012 4 1.1 0.93 J 1.2 1.0 20 NS 1.0 U

10/11/2012 4 NS 2.4 1.2 1.3 1.7 NS 0.51 J 10/18/2012 4 NS 2.4 1.5 1.9 1.2 NS 1.0 U 11/1/2012 4 3.6 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

11/15/2012 4 NS 4.6 6.7 1.0 U 1.0 U NS 1.0 U 12/3/2012 4 2.7 2.8 1.0 U 1.0 U 1.0 U NS 1.0 U

12/20/2012 4 NS 3.3 4.9 3.2 1.0 U NS 1.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 1.9 1.9 3.3 2.2 2.7 NS 2.1

1/16/2013 4 NS 3.3 5.5 3.2 3.7 NS 2.8 2/5/2013 4 2.1 2.0 4.8 2.6 3.2 NS 2.0

2/19/2013 5 NS 2.6 1.0 U 1.0 U 1.0 U 1.0 U 6.1 Phase 5 started on 2/13/13 3/6/2013 5 2.5 2.3 4.6 2.7 3.3 3.3 2.8

3/20/2013 5 NS NS NS NS NS NS 5.9 4/3/2013 5 NS 2.2 8.5 3.2 4.1 3.7 3.9 5/6/2013 5 NS 1.7 9.0 1.9 4.1 4.2 1.0 U

6/12/2013 5 NS 1.5 12 1.0 U 1.0 U 11 1.0 U 7/9/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 8/7/2013 5 2.6 2.5 15 3.3 10 24 7.7 9/3/2013 5 NS 1.2 12 2.2 NS 13 3.3

Page 4 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average BTEX Constituents

m&p-Xylene 9/24/2012 4 NS 0.7 J 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 None None 10/3/2012 4 14 0.62 J 1.0 U 1.0 U 1.0 U NS 1.0 U

10/11/2012 4 NS 1.8 1.0 U 1.0 U 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 25 0.50 J 1.0 U 1.0 U 1.0 U NS 1.0 U

11/15/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 12/3/2012 4 31 3.4 1.0 U 1.0 U 1.0 U NS 1.0 U

12/20/2012 4 NS 0.7 J 1.0 U 1.0 U 1.0 U NS 1.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 23 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

1/16/2013 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 2/5/2013 4 35 0.46 J 1.0 U 0.35 J 1.0 U NS 1.0 U

2/19/2013 5 NS 0.60 J 0.29 J 0.43 J 1.0 U 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 25 0.79 J 0.31 J 0.58 J 1.0 U 1.0 U 1.0 U

3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 2.90 0.38 J 0.79 J 1.0 U 1.0 U 1.0 U 5/6/2013 5 NS 0.67 0.42 J 0.77 J 1.0 U 1.0 U 1.0 U

6/12/2013 5 NS 1.0 U 0.57 J 0.83 J 1.0 U 1.0 U 1.0 U 7/9/2013 5 NS 1.0 U 0.60 J 0.72 J 1.0 U 1.0 U 1.0 U 8/7/2013 5 66 0.7 J 0.63 J 0.58 J 1.0 U 1.0 U 1.0 U 9/3/1913 5 NS 1.0 U 0.63 J 0.56 J NS 1.0 U 1.0 U

o-Xylene 9/24/2012 4 NS 0.38 J 0.50 U 0.50 U 0.50 U NS 0.50 U Phase 4 started on 9/24/12 None None 10/3/2012 4 10 0.62 0.50 U 0.18 J 0.50 U NS 0.50 U

10/11/2012 4 NS 1.6 0.50 U 0.50 U 0.50 U NS 0.50 U 10/18/2012 4 NS 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U 11/1/2012 4 8.4 0.31 J 0.50 U 0.50 U 0.50 U NS 0.50 U

11/15/2012 4 NS 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U 12/3/2012 4 8.7 1.1 0.50 U 0.50 U 0.50 U NS 0.50 U

12/20/2012 4 NS 0.3 J 0.50 U 0.50 U 0.50 U NS 0.50 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 8.0 0.31 J 0.50 U 0.50 U 0.50 U NS 0.50 U

1/16/2013 4 NS 0.86 0.50 U 0.26 J 0.50 U NS 0.50 U 2/5/2013 4 8.8 0.97 0.50 U 0.31 J 0.50 U NS 0.50 U

2/19/2013 5 NS 0.93 0.25 J 0.40 J 0.50 U 0.50 U 0.50 U Phase 5 started on 2/13/13 3/6/2013 5 7.6 1.1 0.35 J 0.63 0.50 U 0.50 U 0.50 U

3/20/2013 5 NS NS NS NS NS NS 0.50 U 4/3/2013 5 NS 2.1 0.46 J 0.96 0.50 U 0.50 U 0.50 U 5/6/2013 5 NS 0.39 J 0.69 1.4 0.50 U 0.50 U 0.50 U

6/12/2013 5 NS 0.42 J 0.74 1.1 0.50 U 0.50 U 0.50 U 7/9/2013 5 NS 0.36 J 0.65 0.78 0.50 U 0.50 U 0.50 U 8/7/2013 5 19 0.85 0.72 0.69 0.50 U 0.50 U 0.50 U 9/3/1913 5 NS 0.52 0.83 0.71 NS 0.50 U 0.50 U

Page 5 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average BTEX Constituents

Toluene 9/24/2012 4 NS 0.53 1.0 1.8 0.50 U NS 0.50 U Phase 4 started on 9/24/12 74 28 10/3/2012 4 14 J 0.74 1.4 1.9 0.50 U NS 0.50 U

10/11/2012 4 NS 1.7 0.85 1.9 0.50 U NS 0.50 U 10/18/2012 4 NS 0.50 U 0.83 1.7 0.50 U NS 0.50 U 11/1/2012 4 14 0.38 J 0.84 1.7 0.50 U NS 0.50 U

11/15/2012 4 NS 0.50 U 0.97 1.7 0.50 U NS 0.50 U 12/3/2012 4 17 2.3 0.85 1.4 0.50 U NS 0.50 U

12/20/2012 4 NS 0.32 J 0.95 1.2 0.50 U NS 0.50 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 6.1 0.50 U 0.91 0.9 0.50 U NS 0.50 U

1/16/2013 4 NS 0.50 U 1.3 1.3 0.50 U NS 0.50 U 2/5/2013 4 21 0.24 J 1.4 1.1 0.50 U NS 0.50 U

2/19/2013 5 NS 0.42 J 1.5 1.4 0.50 U 0.50 U 0.50 U Phase 5 started on 2/13/13 3/6/2013 5 12 0.38 J 1.8 1.3 0.50 U 0.50 U 0.50 U

3/20/2013 5 NS NS NS NS NS NS 2.7 4/3/2013 5 NS 1.40 2.2 1.3 0.50 U 0.50 U 0.50 U 5/6/2013 5 NS 0.49 J 2.5 1.4 0.50 U 0.50 U 0.50 U

6/12/2013 5 NS 0.50 U 2.8 1.6 0.50 U 0.50 U 0.50 U 7/9/2013 5 NS 0.50 U 3.0 1.5 0.50 U 0.50 U 0.81 8/7/2013 5 40 0.40 J 3.8 1.4 0.50 U 0.50 U 0.50 U 9/3/1913 5 NS 0.25 J 4.1 1.2 NS 0.50 U 0.50 U

Ethylbenzene 9/24/2012 4 NS 0.30 J 0.50 U 0.50 U 0.50 U NS 0.50 U Phase 4 started on 9/24/12 380 142 10/3/2012 4 20 0.64 0.50 U 0.50 U 0.50 U NS 0.50 U

10/11/2012 4 NS 1.3 0.50 U 0.50 U 0.50 U NS 0.50 U 10/18/2012 4 NS 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U 11/1/2012 4 22 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U

11/15/2012 4 NS 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U 12/3/2012 4 16 1.4 0.50 U 0.50 U 0.50 U NS 0.50 U

12/20/2012 4 NS 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 18 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U

1/16/2013 4 NS 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U 2/5/2013 4 20 0.50 U 0.50 U 0.50 U 0.50 U NS 0.50 U

2/19/2013 5 NS 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U Phase 5 started on 2/13/13 3/6/2013 5 14 0.23 J 0.50 U 0.17 J 0.50 U 0.50 U 0.50 U

3/20/2013 5 NS NS NS NS NS NS 0.50 U 4/3/2013 5 NS 0.96 0.50 U 0.18 J 0.50 U 0.50 U 0.50 U 5/6/2013 5 NS 0.24 J 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U

6/12/2013 5 NS 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 7/9/2013 5 NS 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 8/7/2013 5 34 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 9/3/1913 5 NS 0.50 U 0.50 U 0.50 U NS 0.50 U 0.50 U

Page 6 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Chlorobenzenes Chlorobenzene 9/24/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 380 142

10/3/2012 4 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 10/11/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 1.2 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

11/15/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 12/3/2012 4 1.1 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U



2/19/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 1.7 J 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U

3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 1.0 U 0.50 U 1.0 U 1.0 U 1.0 U 1.0 U 5/6/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U

6/12/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 7/9/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 8/7/2013 5 1.4 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 9/3/1913 5 NS 1.0 U 1.0 U 1.0 U NS 1.0 U 1.0 U

1,3-Dichlorobenzene 9/24/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 380 142 10/3/2012 4 9.0 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

10/11/2012 4 NS 1.4 1.0 U 1.0 U 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 9.2 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

11/15/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 12/3/2012 4 9.2 1.0 J 1.0 U 1.0 U 1.0 U NS 1.0 U



2/19/2013 5 NS 0.59 J 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 11 1.0 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U



Page 7 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Chlorobenzenes 1,4-Dichlorobenzene 9/24/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 380 142

10/3/2012 4 5.0 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 10/11/2012 4 NS 1.0 J 1.0 U 1.0 U 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 6.9 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U




2/19/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U Phase 5 started on 2/13/13 3/6/2013 5 7.8 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U



1,2,4-Trichlorobenzene

9/24/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 None None 10/3/2012 4 2.5 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

10/11/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 2.5 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U





3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 5/6/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U


Page 8 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Other Acetone 9/24/2012 4 NS 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U Phase 4 started on 9/24/12 3000 3000

10/3/2012 4 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U 10/11/2012 4 NS 5.0 U 6.0 6.5 5.8 NS 6.2 10/18/2012 4 NS 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U 11/1/2012 4 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U

11/15/2012 4 NS 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U 12/3/2012 4 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U

12/20/2012 4 NS 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U

1/16/2013 4 NS 7.1 5.0 U 5.0 U 5.0 U NS 5.0 U 2/5/2013 4 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U NS 5.0 U

2/19/2013 5 NS 6.3 8.3 5.0 U 5.1 5.0 U 5.5 Phase 5 started on 2/13/13 3/6/2013 5 10 U 5.0 U 5.1 5.0 U 5.0 U 5.0 U 5.0 U

3/20/2013 5 NS NS NS NS NS NS 6.1 4/3/2013 5 NS 5.0 U 5.9 4.5 J 5.0 U 5.0 U 5.0 U 5/6/2013 5 NS 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U

6/12/2013 5 NS 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 5.0 U 7/9/2013 5 NS 5.0 U 7.3 5.3 5.5 5.4 5.0 U 8/7/2013 5 5.0 U 5.0 U 10.0 5.0 U 5.0 U 5.0 U 5.0 U 9/3/1913 5 NS 5.0 U 8.0 4.8 J NS 4.1 J 5.0 U

1,2,4-Trimethylbenzene

9/24/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U Phase 4 started on 9/24/12 794 196 10/3/2012 4 1.4 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U

10/11/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 10/18/2012 4 NS 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U 11/1/2012 4 2.1 1.0 U 1.0 U 1.0 U 1.0 U NS 1.0 U





3/20/2013 5 NS NS NS NS NS NS 1.0 U 4/3/2013 5 NS 0.58 J 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 5/6/2013 5 NS 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U


Page 9 of 10

TABLE 3





ABR-1 Effluent

ABR-2 Effluent


Point


Treatment Plant


Limits

Sample Port ID >> M1 M5 M7 M9 M11 M12 M15 Daily Average Dissolved Gases Ethene 10/3/2012 4 NS NS 20 12 NS NS NS

11/1/2012 4 40 32 27 24 NS 24 15 11/15/2012 4 NS 31 48 57 NS 52 20

12/3/2012 4 NS 31 46 51 NS 22 17

12/20/2012 4 NS 26 61 71 NS 62 29 Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 NS 27 100 99 NS 51 58

1/16/2013 4 NS 27 110 120 NS 110 50 2/5/2013 4 32 29 140 160 NS 140 72 Phase 5 started on 2/13/13 4/3/2013 5 NS NS 130 160 NS NS NS 5/6/2013 5 NS NS 140 120 NS NS NS 8/7/2013 NS NS 110 160 NS NS NS

Ethane 10/3/2012 4 NS NS 10 4.7 NS NS NS 11/1/2012 4 14 11 7.2 7.2 NS 6.9 3.9

11/15/2012 4 NS 9.1 9.0 8.9 NS 9.3 5.4 12/3/2012 4 NS 8.8 8.6 5.7 NS 5.3 4.1

12/20/2012 4 NS 11 7.7 8.2 NS 6.6 2.8 Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 NS 9.5 8.7 9.6 NS 4.5 5.5

1/16/2013 4 NS 12 10 10 NS 9.1 3.8 2/5/2013 4 11 9.7 12 11 NS 12 5.7 Phase 5 started on 2/13/13 4/3/2013 5 NS NS 16 12 NS NS NS 5/6/2013 5 NS NS 23 5.8 NS NS NS 8/7/2013 5 NS NS 46 13 NS NS NS

Methane 10/3/2012 4 NS NS 1000 920 NS NS NS 11/1/2012 4 730 470 1400 1500 NS 1400 700

11/15/2012 4 NS 490 1600 1800 NS 1800 960 12/3/2012 4 NS 640 2000 2000 NS 1900 860

12/20/2012 4 NS 550 1900 1600 NS 1700 660 Switched to parallel ABR bed configuration on 12/19/12 1/3/2013 4 NS 510 1900 2300 NS 990 1100

1/16/2013 4 NS 580 3000 1700 NS 2000 740 2/5/2013 4 580 480 3400 2200 NS 2300 970 Phase 5 started on 2/13/13 4/3/2013 5 NS NS 3900 2000 NS NS NS 5/6/2013 5 NS NS 5400 1500 NS NS NS 8/7/2013 5 NS NS 10000 2600 NS NS NS

Notes: U = Analyte not detected. Value shown is method reporting limit. J = Estimated concentration that is less than the sample reporting limit.

NS = Not scheduled for sampling in the Transtion and Monitoring Plan.

Page 10 of 10

TABLE 4

Phase 5 Field Data -

Anaerobic Bioreactor System Transition Monitoring Program


Date

ABR Transi-

tion Phase

ABR-1 Operating

Hours

ABR-2 Operating

Hours

pH Treatment

Plant Influent

Pretmt. Carbon Influent

ABR-1&2 Influent

ABR-1 Effluent

ABR-2 Effluent


GWTP Effluent

M1 M3 M5 M7 M9 M12 M152/19/2013 5 24 24 5.9 6.0 5.9 5.7 5.7 NS 6.8 2/27/2013 5 24 24 NS NS 5.9 NS NS NS NS

3/6/2013 5 24 24 NS NS 6.0 NS NS NS NS 3/12/2013 5 24 24 5.9 6.0 5.9 5.6 5.8 NS 6.7 3/20/2013 5 24 24 NS 5.9 5.8 5.7 5.8 NS 6.8 3/27/2013 5 24 24 NS 6.0 5.8 5.8 5.9 NS 6.8 4/3/2013 5 24 24 5.9 6.0 5.9 5.6 5.8 NS 6.7

4/10/2013 5 24 24 NS NS 5.9 5.6 5.9 5.9 6.7 4/17/2013 5 24 24 NS NS 5.8 5.7 5.8 5.8 6.7 4/22/2013 5 24 24 NS NS 5.9 5.6 5.9 5.9 6.7 4/30/2013 5 24 24 NS 5.9 5.9 5.7 5.8 5.8 6.7

5/8/2013 5 24 24 NS NS 5.8 5.7 5.8 5.9 6.6 5/15/2013 5 24 24 6.0 6.0 5.9 5.7 5.9 5.8 7.1 5/24/2013 5 24 24 NS NS 5.8 5.6 5.9 5.8 6.6 5/29/2013 5 24 24 NS 5.9 5.9 5.7 5.8 5.9 6.7 6/4/2013 5 24 24 NS NS 5.8 5.7 5.8 5.9 6.6

6/11/2013 5 24 24 6.0 6.0 5.9 5.6 5.9 5.8 6.6 6/19/2013 5 24 24 NS NS 5.9 5.7 5.9 5.8 6.6 6/26/2013 5 24 24 NS 5.9 5.9 5.7 5.8 5.9 6.7 7/3/2013 5 24 24 6.0 6.0 6.0 5.7 5.8 5.9 7.0 7/9/2013 5 24 24 NS 6.0 5.9 5.7 5.8 5.8 6.6

7/15/2013 5 24 24 NS NS 6.0 5.7 5.8 5.9 6.8 7/22/2013 5 24 24 NS NS 5.9 5.7 5.9 5.8 6.6

8/7/2013 5 24 24 5.9 5.9 5.9 5.6 5.7 5.8 6.6 8/16/2013 5 24 24 5.9 5.9 5.9 5.7 5.7 5.8 6.6 8/21/2013 5 24 24 NS NS 6.0 5.7 5.8 5.9 6.7 8/27/2013 5 24 24 NS 6.0 5.9 5.7 5.8 5.8 6.9 9/4/2013 5 24 24 6.0 5.9 5.9 5.7 5.8 5.9 6.6

9/11/2010 5 24 24 NS NS 5.8 5.8 5.8 5.9 6.6 9/16/2013 5 24 24 5.9 5.9 5.9 5.7 5.8 5.8 6.7 9/24/2013 5 24 24 NS NS 5.8 5.7 5.7 5.8 6.7 9/30/2013 5 24 24 NS NS 5.9 5.7 5.8 5.8 6.6

Notes: NS = Not scheduled for sampling in the Transition and Montioring Plan.

Page 1 of 6

TABLE 4




Date

ABR Transi-

tion Phase

ABR-1 Operating

Hours

ABR-2 Operating

Hours

Dissolved Oxygen (mg/L)

Plant Influent


ABR-1&2 Influent

ABR-1 Effluent

ABR-2 Effluent


GWTP Effluent

Copicut River

Upstream from Outfall

Downstream from Outfall

M1 M3 M5 M7 M9 M12 M15 2/19/2013 5 24 24 NS

TABLE 4




Date

ABR Transi-

tion Phase

ABR-1 Operating

Hours

ABR-2 Operating

Hours

Total Iron (mg/L)

Plant Influent


ABR-1&2 Influent

ABR-1 Effluent

ABR-2 Effluent


GWTP Effluent

M1 M3 M5 M7 M9 M12 M152/19/2013 5 24 24 7.8 6.8 4.0 4.8 8.0 6.2 6.0 2/27/2013 5 24 24 NS NS 3.9 5.2 7.9 5.9 5.4 3/6/2013 5 24 24 NS NS 4.2 6.5 8.3 6.3 5.8

3/12/2013 5 24 24 6.0 5.4 4.5 8.6 8.6 6.8 4.4 3/20/2013 5 24 24 NS NS 4.5 8.6 8.6 6.8 4.4 3/27/2013 5 24 24 6.7 5.7 4.5 8.6 8.6 6.8 4.4 4/3/2013 5 24 24 6.8 6.0 4.9 10 9.6 9.0 6.6

4/10/2013 5 24 24 NS NS 4.8 10 9.3 9.0 8.7 4/17/2013 5 24 24 NS NS 5.1 10 9.9 9.0 9.2 4/22/2013 5 24 24 NS NS 4.9 11 9.6 9.0 10 4/30/2013 5 24 24 6.9 5.6 4.8 11 10 11 11

5/8/2013 5 24 24 NS NS NS NS NS NS NS 5/15/2013 5 24 24 6.8 4.8 2.5 10 9 9 9 5/24/2013 5 24 24 6.5 5.4 2.1 13 10 11 10 5/29/2013 5 24 24 NS NS NS NS NS NS NS

6/4/2013 5 24 24 NS NS NS NS NS NS NS 6/11/2013 5 24 24 6.5 5.6 4.3 15 11 12 12 6/19/2013 5 24 24 NS NS NS NS NS NS NS 6/26/2013 5 24 24 7.5 6.2 4.1 15 10 11 11 7/3/2013 5 24 24 8.4 6.6 4.3 16 11 11 11 7/9/2013 5 24 24 NS 6.7 3.6 19 12 NS 12

7/15/2013 5 24 24 5.8 7.8 4.6 19 11 NS 12 7/22/2013 5 24 24 NS NS NS NS NS NS NS

8/7/2013 5 24 24 6.8 6.8 5.6 20 11 13 13 8/16/2013 5 24 24 5.8 5.0 5.0 20 10 11.0 12 8/21/2013 5 24 24 5.8 7.8 4.6 18 11 NS 12 8/27/2013 5 24 24 NS 4.6 4.0 20 10 12 12 9/4/2013 5 24 24 NS 5.1 4.6 18 9 11 11

9/11/2010 5 24 24 NS 4.6 4.0 19 10 12 11 9/16/2013 5 24 24 5.8 5.9 5.1 17 10 12 13 9/24/2013 5 24 24 NS 4.9 4.6 18 10 11 11 9/30/2013 5 24 24 6.4 5.6 5.4 15 10 12 12


Page 3 of 6

TABLE 4




Date

ABR Transi-

tion Phase

ABR-1 Operating

Hours

ABR-2 Operating

Hours

Manganese (mg/L)

Plant Influent

ABR-1&2

Influent

ABR-1 Effluent

ABR-2 Effluent


GWTP Effluent

M1 M5 M7 M9 M12 M15 2/19/2013 5 24 24 1.4 1.5 0.75 0.5 0.6 0.5 2/27/2013 5 24 24 NS 1.8 1.8 1.8 0.9 0.9 3/6/2013 5 24 24 NS 1.7 1.6 1.7 0.8 0.7

3/12/2013 5 24 24 1.5 1.5 0.8 0.7 0.6 0.6 3/20/2013 5 24 24 NS 1.5 0.8 0.6 0.5 0.5 3/27/2013 5 24 24 1.4 1.3 0.9 0.7 0.6 0.6 4/3/2013 5 24 24 1.5 1.2 0.8 0.7 0.5 0.6

4/10/2013 5 24 24 NS 1.3 0.8 0.8 0.6 0.5 4/17/2013 5 24 24 NS 1.2 0.9 0.7 0.5 0.5 4/22/2013 5 24 24 NS 1.2 0.8 0.7 0.7 0.6 4/30/2013 5 24 24 1.5 1.5 0.8 0.8 0.8 0.8 5/8/2013 5 24 24 NS NS NS NS NS NS

5/15/2013 5 24 24 1.5 0.9 0.85 0.8 0.8 0.2 5/24/2013 5 24 24 1.5 1.4 0.95 0.8 0.8 0.4 5/29/2013 5 24 24 NS NS NS NS NS NS

6/4/2013 5 24 24 NS NS NS NS NS NS 6/11/2013 5 24 24 1.5 1.5 0.9 1.0 1.0 1.0 6/19/2013 5 24 24 NS NS NS NS NS NS 6/26/2013 5 24 24 1.4 1.5 0.9 1.2 1.1 0.7 7/3/2013 5 24 24 1.5 1.6 0.9 1.2 1.2 0.6 7/9/2013 5 24 24 NS 1.5 0.9 1.0 1.0 1.0

7/15/2013 5 24 24 1.5 1.7 1.0 1.2 NS 0.5 7/22/2013 5 24 24 NS 1.5 0.8 1.1 NS 1.1 8/7/2013 5 24 24 1.4 1.7 1.0 1.0 1.2 1.5

8/16/2013 5 24 24 NS NS NS NS NS NS 8/21/2013 5 24 24 1.5 1.6 1.0 1.1 NS 1.0 8/27/2013 5 24 24 NS 1.5 1.0 1.2 1.2 1.2 9/4/2013 5 24 24 NS NS NS NS NS NS

9/11/2010 5 24 24 NS 1.5 1.1 1.1 1.2 1.2 9/16/2013 5 24 24 NS 1.5 1.5 0.9 1.2 1.1 9/24/2013 5 24 24 NS 1.4 1.4 1.0 0.9 1.0 9/30/2013 5 24 24 1.3 1.3 0.8 1.1 0.1 1.1


Page 4 of 6

TABLE 4




Date

ABR Transi-

tion Phase

ABR-1 Operating

Hours

ABR-2 Operating

Hours

Total Dissolved Gas Pressure (mm Hg)

Plant Influent


Degassing Membrane

Influent

ABR-1&2 Influent

ABR-1 Effluent

ABR-2 Effluent

Polishing Carbon

Mid-Point


GWTP Effluent

M1 M3 M4 M5 M7 M9 M11 M12 M15 2/19/2013 5 24 24 5 5 NS 8 21 15 12 14 5 2/27/2013 5 24 24 NS NS NS NS NS NS NS NS NS

3/6/2013 5 24 24 NS NS NS NS NS NS NS NS NS 3/12/2013 5 24 24 -6 0 NS 2 16 9 7 8 2 3/20/2013 5 24 24 4 3 NS 2 17 14 12 12 2 3/27/2013 5 24 24 2 2 NS 3 20 17 14 13 4 4/3/2013 5 24 24 3 1 NS 3 23 13 15 13 3

4/10/2013 5 24 24 NS NS NS 2 18 15 12 10 4 4/17/2013 5 24 24 NS NS NS 1 20 12 14 13 5 4/22/2013 5 24 24 NS NS NS 2 21 13 11 10 5 4/30/2013 5 24 24 -5 -5 NS 0 22 11 9 10 9 5/8/2013 5 24 24 -5 -4 NS 0 22 11 9 10 9

5/15/2013 5 24 24 -5 -2 NS 3 28 10 9 12 0 5/24/2013 5 24 24 NS -3 NS 1 23 6 NS NS NS 5/29/2013 5 24 24 NS NS NS 0 22 7 NS NS NS 6/4/2013 5 24 24 -6 -4 NS -1 22 8 NS 9 5

6/11/2013 5 24 24 -9 -7 NS -5 23 7 NS 14 -6 6/19/2013 5 24 24 NS -3 NS 0 21 6 NS NS NS 6/26/2013 5 24 24 NS NS NS 0 22 6 NS NS NS

7/3/2013 5 24 24 -12 -8 NS -6 16 19 NS NS -11 7/9/2013 5 24 24 -9 -7 NS -5 23 7 NS 14 -6

7/15/2013 5 24 24 -11 -7 NS -6 27 9 NS 20 -10 7/22/2013 5 24 24 -5 -6 NS -1 25 6 NS 28 -10 8/7/2013 5 24 24 1 1 1 -44 24 10 NS 19 -6

8/16/2013 5 24 24 -2 -1 -1 -39 30 6 NS 19 -4 8/21/2013 5 24 24 -3 -2 -2 -44 33 2 NS 20 -10 8/27/2013 5 24 24 -6 -6 -2 -48 36 -3 NS 18 -7

9/4/2013 5 24 24 NS NS 0 -44 34 -3 NS NS NS 9/11/2010 5 24 24 NS NS 4 -36 43 0 9/16/2013 5 24 24 0 1 1 -40 35 -3 NS 19 -3 9/24/2013 5 24 24 NS NS 3 -35 30 -2 NS NS NS 9/30/2013 5 24 24 -4 -1 0 -40 21 -2 NS 14 -1


Page 5 of 6

TABLE 4




Date

ABR Transi-

tion Phase

ABR-1 Operating

Hours

ABR-2 Operating

Hours

Temperature (oF)

GWTP Influent

GWTP Effluent

M1 M15 2/19/2013 5 24 24 50.4 52.5 2/27/2013 5 24 24 50.2 52.7 3/6/2013 5 24 24 50.0 52.6

3/12/2013 5 24 24 49.8 52.8 3/20/2013 5 24 24 50.5 53.9 3/27/2013 5 24 24 51.8 54.5 4/3/2013 5 24 24 52.9 56.6

4/10/2013 5 24 24 53.0 54.4 4/17/2013 5 24 24 52.2 54.2 4/22/2013 5 24 24 52.4 54.8 4/30/2013 5 24 24 53.5 53.4 5/8/2013 5 24 24 53.5 53.6

5/15/2013 5 24 24 53.6 53.7 5/24/2013 5 24 24 53.7 53.9 5/29/2013 5 24 24 53.8 54.1 6/4/2013 5 24 24 53.4 54.4

6/11/2013 5 24 24 52.0 54.9 6/19/2013 5 24 24 53.8 55.0 6/26/2013 5 24 24 54.0 55.2 7/3/2013 5 24 24 54.2 57.3 7/9/2013 5 24 24 52.0 54.9

7/15/2013 5 24 24 55.5 59.5 7/22/2013 5 24 24 56.0 59.7 8/7/2013 5 24 24 57.0 59.5

8/16/2013 5 24 24 56.5 59.0 8/21/2013 5 24 24 56.3 59.5 8/27/2013 5 24 24 56.0 59.7 9/4/2013 5 24 24 56.5 59.5

9/11/2010 5 24 24 57.0 59.2 9/16/2013 5 24 24 57.4 59.0 9/24/2013 5 24 24 57.6 59.0 9/30/2013 5 24 24 57.3 59.1


Page 6 of 6

pH

Upper pH Discharge Limit (8.3)

Lower pH Discharge Limit (6.5)

9/1/2013 9/6/2013 9/11/2013 9/16/2013 9/21/2013 9/26/2013

10.0

9.0

8.0

7.0

6.0

5.0

FIGURE 1

EFFLUENT pH - September 2013 Management of Migration Remedial Action

ReSolve Superfund Site

PH_2013-09.xlsx

10/1/2013

FIGURE 2

ReSolve ABR System Operating Configuration

September 2013

Anaerobic

Bioreactor

ABR-1

35 gpm combined from 8 wells

Pretreatment

Carbon

(Two 10,000-lb vessels)

7 to 12.5 gpm

35 gpm 22.5 to 28 gpm

Degassing Membrane

No. 1

Anaerobic

Bioreactor

ABR-2

7 to 12.5 gpm

Copicut River 35 gpm 22.5 to 35 gpm 35 gpm

28 gpm

Effluent Aeration

Polishing

Carbon

(Two 5,000-lb vessels)

Nor

mal

izeed

Hea

dlos

s (ft

H2O

per

GP

M)

1.0 35

0.8

Membrane Treatment of ABR-2 Influent

Membrane Treatment of ABR-1&2 Influent

30

0.6

ABR-1 Headloss

ABR-2 Headloss

20

25

0.40.4 15

10

0.2

Target Headloss at 35 gpm (3.5 ft H2O)

Maximum Headloss at 35 gpm (4.3 ft H2O) 5

0.0 7/25/2013 8/4/2013 8/14/2013 8/24/2013 9/3/2013 9/13/2013 9/23/2013

0

FIGURE 3

Cal

cula

ted

Hea

dlos

s at

35

gpm

(ft H

2O)

Normalized Headloss (ft H2O/GPM) in ABR Beds Management of Migration Remedial Action

ReSolve Superfund Site

ABR Headloss2013-09.xlsx

200

250

300

350

400

450

500

hlor

oeth

ene

Con

cent

ratio

n (µ

g/L)

Treatment Plant Influent


ABR-1 Effluent

ABR-2 Effluent

Polishing Carbon Mid-Point


Treatment Plant Effluent

35 gpm

LC-2 12 gpm

LC-1

Pretreatment Carbon Configuration

23 gpm

LC-2

0

50

100

150

8/1/2012 10/1/2012 12/1/2012 2/1/2013 4/3/2013 6/4/2013 8/4/2013

cis-

1,2-

Dic

h

Average Monthly Discharge Limit

(25 µg/L)

FIGURE 4

cis-1,2-Dichloroethene Concentration in ABR System Management of Migration Remedial Action


ABR VOC data and graphs 2013-09.xlsx

150

200

250

300 C

hlor

ide

Con

cent

ratio

n (µ

g/L)



ABR-1 Effluent

ABR-2 Effluent




Average Monthly

35 gpm

LC-2 12 gpm

LC-1


23 gpm

LC-2

0

50

100

8/1/2012 10/1/2012 12/1/2012 2/1/2013 4/3/2013 6/3/2013 8/4/2013

Viny

l C Discharge Limit (97 µg/L)

FIGURE 5

Vinyl Chloride Concentration in ABR System Management of Migration Remedial Action



30

40

50

60

70 or

oeth

ane

Con

cent

ratio

n (µ

g/L)



ABR-1 Effluent

ABR-2 Effluent




Average Monthly

35 gpm LC-2

12 gpm LC-1


23 gpm LC-2

0

10

20

8/1/2012 10/1/2012 12/1/2012 2/1/2013 4/3/2013 6/3/2013 8/4/2013

1,1,

1-Tr

ichl

o Average Monthly Discharge Limit

(22 µg/L)

FIGURE 6

1,1,1-Trichloroethane Concentration in ABR System Management of Migration Remedial Action



30

40

50

60 et

hane

Con

cent

ratio

n (µ

g/L)



ABR-1 Effluent

ABR-2 Effluent




Average Monthly Discharge Limit

(22 µg/L)


35 gpm LC-2

12 gpm

LC-1

23 gpm LC-2

0

10

20

8/1/2012 10/1/2012 12/1/2012 2/1/2013 4/3/2013 6/3/2013 8/4/2013

Clo

roe (22 µg/L)

FIGURE 7

1,1-Dichloroethane Concentration in ABR System Management of Migration Remedial Action



80

100

120

140

160

180 Et

hene

Con

cent

ratio

n (µ

g/L)



ABR-1 Effluent

ABR-2 Effluent




35 gpm

LC-2 12 gpm

LC-1

LC-2

0

20

40

60

8/1/2012 10/1/2012 12/1/2012 2/1/2013 4/3/2013 6/3/2013 8/4/2013

E

23 gpm

FIGURE 8

Ethene Concentration in ABR System Management of Migration Remedial Action



ATTACHMENT I

TOXICITY TESTING LABORATORY REPORT

ESI EnviroSystems, Inc.

P.O. Box 778

Hampton, NH 03843-0778

603-926-3345

October 24, 2013

Mr. Fred Symmes Weston Solutions, Inc. 45 Constitution Avenue, Suite 100 Concord, New Hampshire 03301

Dear Mr. Symmes;

Enclosed, please find one (1) copy of our report evaluating results of toxicity tests completed on groundwater samples collected from the ReSolve Superfund Site Treatment Facility located in North Dartmouth, Massachusetts during September 2013. Acute and chronic toxicity was evaluated using the freshwater species, Ceriodaphnia dubia and Pimephales promelas.

Please do not hesitate to call me, Kirk Cram or Petra Karbe should you have any questions regarding the report.

Sincerely,

EnviroSystems, Incorporated

Kenneth A. Simon Technical Director

Enclosure

Report 23783-13-09 One (1) copy + email

TOXICOLOGICAL EVALUATION

OF A TREATED GROUNDWATER

September 2013

ReSolve Superfund Site Treatment Facility North Dartmouth, Massachusetts

Prepared For:

Weston Solutions, Inc. 45 Constitution Avenue, Suite 100 Concord, New Hampshire 03301

Prepared By:

EnviroSystems, Incorporated One Lafayette Road

Hampton, New Hampshire 03842

September 2013 Reference Number Weston ReSolve23783-13-09

Page 1 of 11

STUDY NUMBER 23783

EXECUTIVE SUMMARY

The following summarizes the results of modified acute and chronic exposure bioassays completed

during September 2013 using groundwater samples collected from the ReSolve Superfund Site Treatment

Facility located in North Dartmouth, Massachusetts. Acute and chronic toxicity were evaluated using the

freshwater species, Ceriodaphnia dubia and Pimephales promelas.

C. dubia, cultured at ESI, were 100%

100%

100%

>100%

>100%

Yes

Yes

Yes

Yes

Species

Chronic Toxicity Evaluation

Exposure C-NO EC C-LO EC

Perm it

Lim it

(C -NOEC)

Effluent M eets

Perm it L im it

Assay M eets

Protocol Lim its

Ceriodaphnia dubia 7 Days 100% >100% 17% Yes Yes

,Pimephales promelas* ** 7 Days 100% >100% 17% Yes Yes

COMMENTS:

* Only 3 replicates were used for the laboratory water diluent control, receiving water control and 6.25% test

concentration as an insufficient amount of organisms was received from the supplier.

** Only 9 fish were added to replicate ”C” of the laboratory water diluent control.

Resolve Superfund Site Effluent Evaluation, September 2013.

Study Number 23783. Page 2 of 11

TOXICOLOGICAL EVALUATION OF A TREATED GROUNDWATER

September 2013

ReSolve Superfund Site Treatment Facility North Dartmouth, Massachusetts

1.0 INTRODUCTION

This report presents the results of toxicity tests completed on a series of treated groundwater

samples collected from the ReSolve Superfund Site Treatment Facility, North Dartmouth, Massachusetts.

Samples were provided by W eston Solutions, Inc., Concord, New Hampshire. Testing was based on programs

and protocols developed by the US EPA (2002) with exceptions as noted by US EPA Region I (US EPA

Region 1, 2007) and involved conducting modified acute and chronic toxicity tests with the freshwater species,

Ceriodaphnia dubia and Pimephales promelas. Testing was performed at EnviroSystems, Incorporated (ESI),

Hampton, New Hampshire in accordance with the provisions of TNI Standards (2009).

Acute toxicity tests involve preparing a series of test concentrations by diluting test samples with

control water. Groups of test organisms are exposed to each test concentration and a control for a specified

period. The mortality data for each concentration can be used to calculate (by regression) the median lethal

concentration or LC-50, defined as the concentration of effluent which kills half of the test organisms. Samples

with a high LC-50 value are less likely to cause significant environmental impacts. The data can also be

analyzed to determine the no effect level. This Acute No Observed Effect Concentration (A-NOEC) is defined

as the highest tested effluent concentration which causes no significant mortality. Chronic toxicity tests

measure sublethal effects, exposing test organisms to samples during a sensitive period in the life cycle.

Minnow chronic tests measure survival and growth (weight) during the first seven days post hatch; daphnid

chronic tests measure survival and juvenile production. Using Analysis of Variance techniques to evaluate the

data, it is possible to determine the lowest tested concentration that had an effect (C-LOEC) and the highest

tested concentration where no effect (C-NOEC) was observed.

2.0 MATERIALS AND METHODS

2.1 General Methods

Toxicological and analytical protocols used in this program follow procedures primarily designed by the EPA to provide standard approaches for the evaluation of chronic toxicological effects of discharges on aquatic organisms, and for the analysis of water samples. See Section 4.0 for a list of references.

2.2 Test Species

C. dubia were maintained in laboratory water at 25±1°C with a photoperiod of 16:8 hours light:dark. Cultures are fed daily with a yeast/trout chow/Cerophyll or alfalfa leaves (YTC) mixture supplemented with Pseudokirchneriella subcapitata (algae) (EPA 2002). Adults on a brood board were isolated 24 hours prior to test start and allowed to reproduce for 8 hours.

W hen necessary, P. promelas were acclimated to approximate test conditions prior to use in the assay. Organisms were transferred to test chambers using a large bore glass tube, minimizing the amount of water added to the test solution.

2.3 Groundwater, Receiving W ater and Laboratory W ater

Groundwater and receiving water sample collection information is provided in Table 1. Samples were stored at 4°C and warmed to 25±1°C prior to preparing test solutions. Laboratory water was synthetic reconstituted water prepared at ESI according to protocol (EPA 2002). This water has been used to successfully culture freshwater organisms since 1992.

Total residual chlorine (TRC) was measured by amperometric titration (MDL 0.02 mg/L) in the groundwater and diluent samples prior to use in the assays. Samples with �0.02 mg/L TRC were dechlorinated using sodium thiosulfate (EPA 2002). If chlorine was present in the sample, a control assay



using laboratory water treated with an equal amount of sodium thiosulfate was run concurrently with the assay, and data can be found in Appendix A. If sample pH measured

3.2 Chronic Toxicity Test - Pimephales promelas

Minimum test acceptability criteria require 80% control survival, a mean dry weight of 0.250 mg/fish based on Day 7 survival, and the MSDp for biomass to be

TABLE 1. Summary of Sample Collection Information.Resolve Superfund Site Groundwater Evaluation. September 2013.

Sam ple Collection Receipt

Arrival Description Type Date Tim e Date Tim e Tem p °C

G RO UNDW ATER

Start - M 15-091613 G rab 09/16/13 0800 09/16/13 0815 12*

1st Renewal - M 15-091813 G rab 09/18/13 0600 09/18/13 0615 10*

2nd Renewal - M 15-092013 G rab 09/20/13 0700 09/20/13 0800 6

RECEIVING W ATER

Start - SW 1-091613 G rab 09/16/13 0730 09/16/13 0815 12*

1st Renewal - SW 1-091813 G rab 09/18/13 0530 09/18/13 0615 10*

2nd Renewal - SW 1-092013 G rab 09/20/13 0630 09/20/13 0800 6

COMMENTS: * Upon receipt, the tem perature was outside of the range of 4±2°C recom m ended by the protocol for chem istry sam ples (0-6°C acceptable for effluent sam ples). Sam ples were received w ith ice in the cooler.

TABLE 2. Summary of Reference Toxicant Data.Resolve Superfund Site Groundwater Evaluation. September 2013.

Historic M ean/ Acceptable Reference Date Endpoint Value Central Tendency Range Toxicant

C. dubia

09/25/13 Survival LC-50 38.0 25.3 4.4 - 46.2 SDS (m g/L)

09/25/13 Survival C -NO EC 15.0 30.0 15.0 - 60.0 Copper (µg/L)

09/25/13 Reproduction C-NO EC 15.0 30.0 15.0 - 60.0 Copper (µg/L)

P. promelas

09/25/13 Survival LC-50 34.5 28.2 16.4 - 40.1 SDS (m g/L)

09/24/13 Survival C -NO EC 10.0 20.0 10.0 - 30.0 SDS (m g/L)

09/24/13 G rowth C-NO EC 10.0 20.0 10.0 - 30.0 SDS (m g/L)

Means and Acceptable Ranges based on the most recent 20 reference toxicant assays



TABLE 3. C. dubia Chronic and Modified Acute Exposure Assay Data Summary.Resolve Superfund Site Groundwater Evaluation. September 2013.

Mean % Females Is There a Significant Difference Effluent Mean Percent Survival Reproduction Producing Based on Conc. 3 Broods

Day 2 Day 7 (Juv/Female) Survival (%) Reproduction

LAB 100.0% 100.0% 27.6 80.0% - -

RW 100.0% 100.0% 25.6 90.0% - -

6.25% 100.0% 100.0% 29.2 100.0% No No

12.5% 100.0% 100.0% 26.4 80.0% No No

17.0% 100.0% 100.0% 27.6 100.0% No No

25.0% 100.0% 100.0% 26.6 90.0% No No

50.0% 100.0% 100.0% 28.8 80.0% No No

100.0% 100.0% 100.0% 29.5 90.0% No No

LC-50 = >100% MSDp = 21.5% NOEC = 100.0% NOEC = 100.0%

COMMENTS: RW - Receiving water; used as a control only. Laboratory water used as a diluent. Sig - Significant impact @ p=0.05 when compared against diluent control.

TABLE 4. P. promelas Chronic and Modified Acute Exposure Assay Data Summary.Resolve Superfund Site Groundwater Evaluation. September 2013.

Is There a Significant Difference Effluent Mean Percent Survival Mean Biomass Based on Conc.

Day 2 Day 7 (mg/fish) Survival (%) Growth (Biomass)

LAB* ** , 100.0% 96.7% 0.520 - -

RW * 100.0% 83.3% 0.405 - -

6.25%* 100.0% 100.0% 0.525 No No

12.5% 100.0% 85.0% 0.439 No No

17.0% 100.0% 97.5% 0.448 No No

25.0% 100.0% 100.0% 0.525 No No

50.0% 100.0% 97.5% 0.626 No No

100.0% 95.0% 87.5% 0.547 No No

LC-50 = >100% MSDp = 26.2% NOEC = 100.0% NOEC = 100.0%

COMMENTS: RW - Receiving water, used as a control only. Laboratory water used as a diluent. Sig - Significant impact @ p=0.05 when compared against diluent control. Growth calculations and statistics based on number of organisms added at test initiation (Day 0). * Only 3 replicates were used for the laboratory water diluent control, receiving water control and 6.25% test concentration as an insufficient amount of organisms was received from the supplier. ** Only 9 fish were added to replicate ”C” of the laboratory water diluent control.



TABLE 5. Initial Water Quality and Analytical Data Summary. Resolve Superfund Site Groundwater Evaluation. September 2013.

RECEIVING LABORATORY PARAMETER UNITS GROUNDW ATER W ATER W ATER

Specific Conductance ìmhos/cm 250 71 204

pH SU 6.97 6.95 7.95

Total Residual Chlorine mg/L

TOXICITY TEST SUMMARY SHEET

FACILITY NAME: Resolve Superfund Site TEST START DATE: 09/17/13

NPDES PERMIT NO.: TEST END DATE: 09/24/13

TEST TYPE TEST SPECIES SAMPLE TYPE SAMPLE METHOD

Acute Pimephales promelas Prechlorinated X Grab

Chronic X Ceriodaphnia dubia Dechlorinated Composite

Daphnia pulex Chlorine Spiked in Lab Flow-thru X Modified Chronic (Reporting Acute Americamysis bahia Chlorinated on Site Other

Values) Cyprinodon variegatus Unchlorinated

24 Hour Screen Menidia beryllina X No Detectable Chlorine Upon Receipt

Arbacia punctulata

Champia parvula

Selenastrum capricornutum

DILUTION WATER:

Receiving water collected at a point upstream or away from the discharge, free from toxicity or other sources of contamination; Receiving W ater Name:

Alternate surface water of known quality and hardness, to generally reflect the characteristics of the receiving water; Receiving W ater Name:

X Synthetic water prepared using either Millipore Milli-Q or equivalent deionized water and reagent grade chemicals; or deionized water combined with mineral water.

Artificial sea salts mixed with deionized water

Deionized water and hypersaline brine

Other

EFFLUENT SAMPLING DATES: 09/16/13 09/18/13 09/20/13

EFFLUENT CONCENTRATIONS TESTED (%): 6.25%, 12.5%; 17%, 25%, 50%, 100%

Permit Limit Concentration: NA %

W as the effluent salinity adjusted? NO If yes, to what level? ppt

REFERENCE TOXICANT TEST DATE: 09/25/13 LC-50: 38.0 mg/L Sodium Dodecyl Sulfate

09/25/13 NOEC: 15.0 µg/L Copper

PERMIT LIMITS AND TEST RESULTS

Test Acceptability Criteria

Mean Diluent Control Survival: 100 % Mean # Juveniles / Female:

MSDp

27.6

21.5 %

LIMITS RESULTS

LC-50:

A-NOEC:

C-NOEC:

>100 %

-

17

%

%

LC-50

Upper Limit:

Lower Limit:

Method:

A-NOEC:

C-NOEC:

C-LOEC:

IC-10:

>100 %

- %

- %

Direct Observation

100 %

100 %

>100 %

-%



TOXICITY TEST SUMMARY SHEET

FACILITY NAM E: Resolve Superfund S ite TEST START DATE: 09/17/13

NPDES PERM IT NO .: TEST END DATE: 09/24/13

TEST TYPE TEST SPECIES SAM PLE TYPE SAM PLE M ETHO D

Acute X Pimephales promelas Prechlorinated X Grab

Chronic Ceriodaphnia dubia Dechlorinated Composite

Daphnia pulex Chlorine Spiked in Lab Flow-thru X Modified Chronic (Reporting Acute Americamysis bahia Chlorinated on Site Other

Values) Cyprinodon variegatus Unchlorinated

24 Hour Screen Menidia beryllina X No Detectable Chlorine Upon Receipt

Arbacia punctulata

Champia parvula

Selenastrum capricornutum

DILUTION WATER:

Receiving water collected at a point upstream or away from the discharge, free from toxicity or other sources of contamination; Receiving W ater Name:

Alternate surface water of known quality and hardness, to generally reflect the characteristics of the receiving water; Receiving W ater Name:

X Synthetic water prepared using either Millipore Milli-Q or equivalent deionized water and reagent grade chemicals; or deionized water combined with mineral water.

Artificial sea salts mixed with deionized water

Deionized water and hypersaline brine

Other

EFFLUENT SAMPLING DATES: 09/16/13 09/18/13 09/20/13

EFFLUENT CONCENTRATIONS TESTED (%): 6.25%, 12.5%; 17%, 25%, 50%, 100%

Permit Limit Concentration: NA %

W as the effluent salinity adjusted? NO If yes, to what level? ppt

REFERENCE TOXICANT TEST DATE: 09/25/13 LC-50: 34.5 mg/L Sodium Dodecyl Sulfate

09/25/13 NOEC: 10.0 mg/L Sodium Dodecyl Sulfate

PERMIT LIMITS AND TEST RESULTS

Test Acceptability Criteria

Mean Diluent Control Survival: 96.7 % Mean Dry Weight/Fish:

MSDp:

0.539 mg/fish

26.2 %

LIMITS RESULTS

LC-50:

A-NOEC:

C-NOEC:

>100 %

-

17.0 %

%

LC-50

Upper Limit:

Lower Limit:

Method:

A-NOEC

C-NOEC

C-LOEC

IC-10:

>100 %

- %

- %

Direct Observation

100 %

100 %

>100 %

- %



APPENDIX A

DATA SHEETS

STATISTICAL SUPPORT

CONTENTS NUMBER of

PAGES

Methods Used in NPDES Permit Biomonitoring Testing 1

C. dubia Chronic Reproduction Assay Bench Sheets 2

C. dubia Survival and Reproduction Statistical Analysis 5

C. dubia Blocking by Parentage Tracking Sheet 1

P. promelas 7 Day Chronic Assay Bench Sheet 1

Larval Fish Dry W eight Summary Sheet 1

P. promelas Statistical Analysis 6

Organism History 1

Daily W ater Quality Data 3

pH Adjusted Laboratory Control Bench Sheets 0

Preparation of Dilutions & Record of Meters Used 2

Analytical Chemistry Summary Data Report 3

Sample Receipt Record 1

Chain of Custody 3

Assay Review Checklist 1

Total Appendix Pages 31



METHODS USED IN NPDES PERMIT BIOMONITORING TESTING

Parameter Method

Acute Exposure Bioassays:

Ceriodaphnia dubia EPA-821-R-02-012 2002.0

Daphnia pulex EPA-821-R-02-012 2021.0

Pimephales promelas EPA-821-R-02-012 2000.0

Americamysis bahia EPA-821-R-02-012 2007.0

Menidia beryllina EPA-821-R-02-012 2006.0

Cyprinodon variegatus EPA-821-R-02-012 2004.0

Chronic Exposure Bioassays:

Ceriodaphnia dubia EPA-821-R-02-013 1002.0

Pimephales promelas EPA-821-R-02-013 1000.0

Cyprinodon variegatus EPA-821-R-02-014 1004.0

Menidia beryllina EPA-821-R-02-014 1006.0

Arbacia punctulata EPA-821-R-02-014 1008.0

Champia parvula EPA-821-R-02-014 1009.0

Trace Metals:

Trace Metals EPA 200.8/SW 6020, EPA 245.7

Hardness Standard Methods 22nd Edition - Method 2340 B

Wet Chemistries:

Alkalinity EPA 310.2

Chlorine, Residual Standard Methods 22nd Edition - Method 4500-Cl D

Total Organic Carbon Standard Methods 22nd Edition - Method 5310 C

Specific Conductance Standard Methods 22nd Edition - Method 2510 B

Nitrogen - Ammonia Standard Methods 22nd Edition - Method 4500-NH G 3

pH Standard Methods 22nd Edition - Method 4500-H+ B

Solids, Total (TS) Standard Methods 22nd Edition - Method 2540 B

Solids, Total Dissolved (TDS) Standard Methods 22nd Edition - Method 2540 C

Solids, Total Suspended (TSS) Standard Methods 22nd Edition - Method 2540 D

Dissolved Oxygen Standard Methods 22nd Edition - Method 4500-O G

Please visit our web site at www.envirosystems.com for a copy of our accreditations and state certifications.

http://www.envirosystems.com

Appendix Page 1

---- ---------- ..._.....___~------,-STUDY# CONC. DAY A 8 c D E F I G H I I J SUM SURV. 'L..olt:.~ 0 0 to+ 'i- + 1- + + t + +· +'

CLIENT: 1 ·1 ·\- ilYJ (1 ~ II \ 1'"2-- . tgL( to Soft Lab r \-6 + -\- +- 1\.. [j I/ t- + --n I~ (D Cerio Data 7 \1. l'S 111 11 ltz... 1'5 lCo 11 13 +- r 2. s 1;'0 source: RB gl

8MHR Ill collected: TOTAL 1-L-1 ~5 ~~ 2-£.-1 ~L( 3o 3D 31 QJ-1 ov ()0

Appendix Page 2

STUDY# CONC. DAY A I 8 c D I E F I G H I J SUM SURV. '2.61~-o

Appendix Page 3

Report Date: 22 Oct-13 10:06 (p 1 of 2) CETIS Summary Report Test Code: 23783Cd7D 111-2341-2481

Ceriodaphnia 7-d Survival and Reproduction Test EnviroSystems, Inc.

Batch ID: 07-1502-0322 Test Type: Reproduction-Survival (7d) Analyst:

Start Date: 17 Sep-13 17:45 Protocol: EPA/821/R-02-013 (2002) Diluent: Soft Synthetic Water

Ending Date: 27 Sep-13 16:30 Species: Ceriodaphnia dubia Brine: Not Applicable

Duration: 9d 23h Source: In-House Culture Age: 100 NA NA 1 Fisher Exact!Bonferroni-Holm Test 20-0385-3904 Reproduction 100 >100 NA 21.5% 1 Steel Many-One Rank Sum Test

Test Acceptability

Analysis ID Endpoint Attribute Test Stat TAC Limits Overlap Decision

10-9016-6800 7d Proportion Survived Control Resp 1 0.8- NL Yes Passes Acceptability Criteria 20-0385-3904 Reproduction Control Resp 27.6 15- NL Yes Passes Acceptability Criteria

20-0385-3904 Reproduction PMSD 0.215 0.13-0.47 Yes Passes Acceptability Criteria

7d Proportion Survived Summary

C-% Control Type Count Mean 95% LCL 95% UCL Min Max Std Err Std Dev CV% %Effect

0 Dilution Water 10 1 1 1 1 1 0 0 0.0% 0.0% 0 Receiving Water 10 1 1 1 1 1 0 0 0.0% 0.0% 6.25 10 1 1 1 1 1 0 0 0.0% 0.0% 12.5 10 1 1 1 1 1 0 0 0.0% 0.0% 17 10 1 1 1 1 1 0 0 0.0% 0.0% 25 10 1 1 1 1 1 0 0 0.0% 0.0%

50 10 1 1 1 1 1 0 0 0.0% 0.0% 100 10 1 1 1 1 1 0 0 0.0% 0.0%

Reproduction Summary

C-% Control Type Count Mean 95% LCL 95% UCL Min Max Std Err Std Dev CV% %Effect

0 Dilution Water 10 27.6 24.7 30.5 24 36 1.3 4.12 14.9% 0.0%

0 Receiving Water 10 25.6 23.5 27.7 22 30 0.933 2.95 11.5% 7.25%

6.25 10 29.2 25.2 33.2 17 39 1.78 5.63 19.3% -5.8%

12.5 10 26.4 18.5 34.3 0 34 3.49 11 41.8% 4.35%

17 10 27.6 25.4 29.8 23 33 0.98 3.1 11.2% 0.0%

25 10 26.6 23.5 29.7 16 32 1.39 4.4 16.5% 3.62%

50 10 28.8 25.4 32.2 20 36 1.5 4.73 16.4% -4.35%

100 10 29.5 28.3 30.7 28 33 0.543 1.72 5.82% -6.88%

000-148-186-1

http:0.13-0.47

Appendix Page 4

Report Date: 22 Oct-13 10:06 (p 2 of 2) CETIS Summary Report Test Code: 23783Cd7D 111-2341-2481


7d Proportion Survived Detail

C-% Control Type Rep 1 Rep2 Rep 3 Rep4 RepS Rep6 Rep7 RepS Rep 9 Rep 10

0 Dilution Water 1 1 1 1 1 1 1 1 1 1

0 Receiving Water 1 1 1 1 1 1 1 1 1 1

6.25 1 1 1 1 1 1 1 1 1 1

12.5 1 1 1 1 1 1 1 1 1 1

17 1 1 1 1 1 1 1 1 1 1

25 1 1 1 1 1 1 1 1 1 1

50 1 1 1 1 1 1 1 1 1 1

100 1 1 1 1 1 1 1 1 1 1

Reproduction Detail

C-% Control Type Rep 1 Rep2 Rep3 Rep4 RepS Rep 6 Rep 7 RepS Rep9 Rep 10

0 Dilution Water 24 25 28 24 24 30 30 31 24 36

0 Receiving Water 22 29 24 28 23 24 27 30 22 27

6.25 17 33 30 32 27 39 30 30 26 28

12.5 33 0 30 33 31 29 30 31 34 13

17 33 27 31 26 25 27 31 26 27 23

25 28 25 32 26 24 28 30 28 16 29

50 20 36 33 31 28 34 27 27 26 26

100 29 29 33 28 28 28 29 29 30 32

000-148-186-1 CETISW v1.8.6.6 Aoolyst~ Qk '\::(l?

Appendix Page 5

• • • • • •

CETIS Analytical Report Report Date: 22 Oct-13 10:06 (p 1 of 1) Test Code: 23783Cd7D 111-2341-2481


Analysis ID: 10-9016-6800 Endpoint: 7d Proportion Survived CETIS Version: CETISv1.8.6

Analyzed: 08 Oct-13 13:07 Analysis: STP 2x2 Contingency Tables Official Results: Yes

Sample ID: 16-5332-7273 Code: 23783 Client: Weston Solutions

Sample Date: 16 Sep-13 08:00 Material: Treated Groundwater Project: Third Quarter WET Compliance Test

Receive Date: 16 Sep-13 08:15 Source: Resolve Superfund Site

Sample Age: 34h Station: Resolve Superfund Site

Data Transform Zeta Alt Hyp Trials Seed NOEL LOEL TOEL TU

Untransformed C>T NA NA 100 >100 NA 1

Fisher Exact/Bonferroni-Holm Test

Control vs C-% Test Stat P-Value P-Type Decision(a:5%)

Dilution Water 6.25 1 1.0000 Exact Non-Significant Effect 12.5 1 1.0000 Exact Non-Significant Effect 17 1 1.0000 Exact Non-Significant Effect 25 1 1.0000 Exact Non-Significant Effect 50 1 1.0000 Exact Non-Significant Effect

100 1 1.0000 Exact Non-Significant Effect

Data Summary

C-% Control Type NR R NR+R Prop NR Prop R %Effect

0 Dilution Water 10 0 10 1 0 0.0%

6.25 10 0 10 1 0 0.0%

12.5 10 0 10 1 0 0.0%

17 10 0 10 1 0 0.0%

25 10 0 10 1 0 0.0%

50 10 0 10 1 0 0.0%

100 10 0 10 1 0 0.0%

Graphics

1.0 !ill

.,I 0.9

0.8

0.7

8 0.6:e

8. ~ 0.5 il!

0,4

0.3

0.2

0.1

0.0 0 6.25 12.5 17 25 so 100

C-%

000-148-186-1 CETism v1.8.6.6 Maly'~ Qk"';::j-v> /c"

Appendix Page 6

Report Date: 22 Oct-13 10:06 (p 1 of 2)CETIS Analytical Report Test Code: 23783Cd7D 111-2341-2481


Analysis ID: 20-0385-3904 Endpoint: Reproduction CETIS Version: CETISv1.8.6

Analvzed: 08 Oct-13 13:07 Analysis: Nonparametric-Control vs Treatments Official Results: Yes

Sample ID: 16-5332-7273 Code: 23783 Client: Weston Solutions

Sample Date: 16 Sep-13 08:00 Material: Treated Groundwater Project: Third Quarter WET Compliance Test

Receive Date: 16 Sep-13 08:15 Source: Resolve Superfund Site

Sample Age: 34h Station: Resolve Superfund Site

Data Transform Zeta Alt Hyp Trials Seed PMSD NOEL LOEL TOEL TU

Untransformed NA C>T NA NA 21.5% 100 >100 NA 1

Steel Many-One Rank Sum Test

Control vs C-% Test Stat Critical Ties DF P-Value P-Type Decision(a:5%)

Dilution Water 6.25 120 74 2 18 0.9919 Asymp Non-Significant Effect

12.5 119 74 2 18 0.9908 Asymp Non-Significant Effect 17 111 74 2 18 0.9421 Asymp Non-Significant Effect 25 105 74 4 18 0.8571 Asymp Non-Significant Effect 50 117 74 3 18 0.9833 Asymp Non-Significant Effect 100 121 74 2 18 0.9938 Asymp Non-Significant Effect

Auxiliary Tests

Attribute Test Test Stat Critical P-Value Decision(a:5%)

Extreme Value Grubbs Extreme Value 4.88 3.26

Appendix Page 7

• •

Report Date: 22 Oct-13 10:06 (p 2 of 2) CETIS Analytical Report Test Code: 23783Cd7D 111-2341-2481


Analysis ID: 20-0385-3904 Endpoint: Reproduction CETIS Version: CETISv1.8.6

Anal ed: 08 Oct-13 13:07 Non arametric-Control vs Treatments Official Results: Yes

Graphics

40

35

30

~ 25l

c w ·10

10

-5 • "' $

20

e 0

15 ·15

10 ·20

·25 0

-30 6.25 12.5 17 25 50 100 ·2.5 -2.0 -1.5 -1.0 .{).S 0.0 0.5 1.0 1.5 2.0 2.5

C-0/o Rankits

000-148-186-1 CETIS™ v1.8.6.6

Appendix Page 8

Ceriodaphnia dubia - Blocking By Parentage

Tracking Sheet

CLIENT: ~-,Je~)too So\"" }icnS,. Toe· START DATE: ~/I 110 I START TIME: l llf s INITIAL: ;.J \)

COLUMN C. dubia ADULT USED added to board# cup#

A A-~

Appendix Page 9

CLIENT Weston Solutions, Inc.

LAB

RW

7 DAY CHRONIC ASSAY

DILUENT Soft Lab

FISI1/BATCH See Organ:WJ Culture

(Control l----'';....__+---t--L~-J-7-=--t--t-'::::-~i!i1T'"-:;-t---'-"""-l-'-'':.'--il-'-~l----'--lf-'-:-'-'""'::-:---+~~-=..::=-t--:::::-=-:-lll

Only)

17%

25%

50%

RW = Receiving Water

Appendix Page 10

Larval Fish Dry Weight Summary Sheet

Study: 23783 Client: Weston Date/Time/Init: 1 0/05/13 1 057 em 09/24/13 111 0 AG Balance ID: Fisher Accu - 225D 17008376

Cone Fish and Foil (mg) Tare Wt (mg) Fish and Foil Duplicates* Tare Duplicates* Lab A 15.31 10.27 Lab B 16.72 11.38 LabC 13.51 8.81 RWA 16.23 11.51 RWB 14.15 9.87 RWC 15 11.86 6A 16.36 11.2 68 14.13 8.92 6C 18.15 12.77 18.15 12.76 12 A 17.36 12.3 12 B 13.15 8.72 12 c 18.22 13.32 12 D 15.61 12.43 17 A 15.99 10.87 17 B 13.57 9.64 17 c 12.83 8.95 17 D 18.25 13.24 25A 15.03 8.9 25 B 14.72 10.07 25 c 18.08 12.88 25 D 17.6 12.57 17.6 12.56 50 A 18.01 11.83 50 B 15.46 8.34 50 c 17.34 11.08 50 D 18.06 12.56 100A 16.06 10.27 100 B 13.24 7.08 100 c 13.37 9.29 100 D 17.45 11.61

*Get a duplicate every 12 weights throughout the population

Appendix Page 11

Report Date: 22 Oct-13 10:05 (p 1 of 2)CETIS Summary Report Test Code: 23783Pp7D I 05-2958-6325

Fathead Minnow 7-d Larval Survival and Growth Test EnviroSystems, Inc.

Batch ID: 13-3789-6011 Test Type: Growth-Survival (7d) Analyst:

Start Date: 17 Sep-13 18:10 Protocol: EPN821/R-02-013 (2002) Diluent: Laboratory Water

Ending Date: 24 Sep-13 13:45 Species: Pimephales promelas Brine: Not Applicable

Duration: 6d 20h Source: ABS -Aquatic Biosystems, CO Age: 100 NA 14.9% 1 Bonferroni Adj t Test 17-8310-8176 Mean Dry Biomass-mg 100 >100 NA 26.2% 1 Bonferroni Adj t Test 14-2619-0479 Mean Dry Weight-mg 100 >100 NA 23.2% 1 Bonferroni Adj tTest

Test Acceptability

Analysis ID Endpoint A

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