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HomeMy WebLinkAboutPSA - Groundwater Remedy and Quarterly Sampling Plan - Oliver Industrial Park - Hull and Assoc.1316 COUNTY -CITY BUILDING 227 W. JEFFERSON BOULEVARD SOUTH BEND. INDIANA 46601-1930 CITY OF SOUTH BEND PETE BUTTIGIEG, MAYOR BOARD OF PUBLIC WORKS August 23, 2016 Mr. Doug Stuart Hull & Associates, Inc. Suite 200 6397 Emerald Pkwy Dublin, OH 43016 PHONE 5741235-9251 FAX 574/235-9171 RE: Professional Services Agreement — Groundwater Remedy and Quarterly Sampling Plan — Oliver Industrial Park Dear Mr. Stuart The Board of Public Works, at its meeting held on August 23, 2016, approved the above referenced agreement in the amount of $491,160.00. Enclosed please find a copy of the agreement for your records. If you have any further questions regarding this matter, please call this office at (574) 235- 9251. Sincerely, , Linda M. Martin, Clerk Enclosure GARY A. GILOT DAVID P. RELOs ELIZABETH A. MAR ADIK JAMES A. MUELLER THERESE J. DORAU AGREEMENT FOR PROFESSIONAL SERVICES This Agreement For Professional Services (this "Agreement") is entered into on August 11, 2016 (the "Effective Date"), by and between the City of South Bend, Indiana, acting by and through its Board of Public Works ("City"), and Hull & Associates, Inc., an Ohio corporation with its registered office address at 6397 Emerald Parkway, Suite 200, Dublin, Ohio 43016 (the "Provider") (each a "Party" and collectively the "Parties"). For and in consideration of the mutual covenants and promises contained herein, the Parties agree as follows: 1. Services. The Provider will provide to the City the professional services set forth in the Provider's proposal attached hereto as Exhibit A (the "Services"). In the event of any conflict between the terms of this Agreement and the terms of Exhibit A, the terms of this Agreement will prevail. The Provider will execute its obligations under this Agreement in accordance with the prevailing professional standard of care ordinarily exercised under similar conditions by reputable members of its profession practicing in the same or similar locality at the time of service. 2. Compensation. In exchange for the Provider's satisfactory performance of the Services, and subject to the terms and conditions of this Agreement, the City will pay the Provider a total sum not to exceed Four Hundred Ninety -One Thousand One Hundred Sixty Dollars ($491,160) (the "Contract Amount"). The City will pay the Provider for services rendered upon invoicing by the Provider in four -week increments (each a "Contract Payment"). The City will not be required to make any Contract Payment if the City is not satisfied with the Provider's performance under this Agreement or any default or breach of this Agreement by the Provider exists, as the City may determine in its sole discretion. The sum of all Contract Payments will not exceed the Contract Amount. 3. Additional Work. Notwithstanding anything in Exhibit A to the contrary, the Provider will undertake no additional work beyond the Services without first obtaining the City's written approval of such additional work and specific compensation therefor. 4. Term; Termination. Unless earlier terminated in accordance with its terms, this Agreement will commence on the Effective Date stated above and end on March 31, 2019 (the "Expiration Date"). Effective immediately upon delivery of a written termination notice to the Provider, the City may terminate this Agreement, in whole or in part, for any reason, if the City determines that such termination is in the best interest of the City. If the City makes a written determination that funds are not appropriated or are otherwise unavailable to support the continuation of this Agreement, it shall be cancelled. A determination by the City that funds are not appropriated or are otherwise unavailable to support the continuation of performance shall be final and conclusive. The City will not be required to make any Contract Payment or be otherwise liable for any cost associated with the Provider's performance of any Services after the effective date of termination. 5. Remedies for Breach of Contract. Failure to complete the Services in accordance 1 with this Agreement may be considered a material breach. In the event of such breach, the City may suspend all payments to the Provider and may pursue any and all remedies available at law or in equity. The Provider shall repay to the City any portion of the Contract Amount expended for matters not within the scope of the Services. 6. Point of Contact. The Contract Administrator identified in Section 9 below will serve as the City's principal point of contact for purposes of this Agreement. 7. Relationship. The Provider shall at all times be an independent contractor for the performance of the Services rather than an employee of the City, and no act or omission to act by the Provider shall in any way bind or obligate the City. This Agreement is strictly for the benefit of the Parties and not for any third -party or person. This Agreement was negotiated by the Parties at arm's length and each of the parties hereto has reviewed the Agreement after the opportunity to consult with independent legal counsel. Neither party shall maintain that the language in the Agreement shall be construed against any signatory hereto. The City and the Provider hereby renounce the existence of any form of agency relationship, joint venture, or partnership between the Provider and the City and agree that nothing contained herein or in any document executed in connection herewith shall be construed as creating any such relationship between the City and the Provider. 8. Indemnification of City. The Provider hereby agrees to defend, indemnify, and hold harmless the City, its officials, employees, and agents from any and all claims of any nature which arise from the performance by the Provider under this Agreement and from all costs and attorney fees in connection therewith, excepting for claims arising out of the negligence of the City, its officials, directors, employees, and agents. The obligations of the Provider under this Section shall survive the termination of this Agreement. 9. Notices. Any notice required or permitted to be delivered hereunder shall be deemed to be delivered, whether or not actually received, when deposited in the United States Postal Service, postage prepaid, registered or certified mail, return receipt requested, addressed to the City or the Provider, as the case may be, at the address set forth below. Provider: Hull & Associates, Inc. 6397 Emerald Parkway, Suite 200 Dublin, OH 43016 Attn: Doug Stuart City: Department of Community Investment City of South Bend 227 W. Jefferson Boulevard, Suite 1400 S. South Bend, IN 46601 Attn: Chris Dressel (the "Contract Administrator") 10. Equal Opportunity. The Provider shall comply with federal, state, and local law in its hiring and employment practices and policies for any activity covered by this Agreement. 11. Entire Agreement; Amendment; Applicable Law. This Agreement sets forth the entire agreement and understanding between the parties as to the subject matter hereof, and merges and supersedes all prior discussions, agreements, and understanding of any and every nature 2 IN WITNESS WHEREOF, the Parties hereto have caused this Agreement For Professional Services to be effective as of the Effective Date stated above. HULL & ASSOCI , INC. By. Date: 5q /6 //!a CITY OF SOUTH BEND INDIANA Date Signed: Gary Gilot, resident David P. Relos, Member James A. Mueller, Member Therese r Do au, Member I k Elizabeth A. Maradik, Member T ST- vwc—.c— da Martin. Cler c of the Board of Public Works C! between them. This Agreement may be amended only by separate writing, signed by authorized representatives of both the Provider and the City. This Agreement will be construed and interpreted according to the laws of the State of Indiana. 12. Assignment. Except as contemplated in Exhibit A, the Provider shall not assign or subcontract the whole or any part of this Agreement or its obligations hereunder without the prior written consent of the City. 13. Non -Collusion. The undersigned attests, subject to the penalties of perjury, that he is the Provider and that he has not entered into or offered to enter into any combination, collusion, or agreement to receive or pay, and that he has not received or paid, any sum of money or other consideration for the execution of this Agreement other than that which appears upon the face hereof. The Provider agrees that he will execute and submit to the City and any other appropriate bodies, an affidavit in the form attached hereto as Exhibit B. 14. Drug-Free,Workplace. The Provider hereby agrees to make a good faith effort to provide and maintain a drug -free workplace. The Provider will give written notice to the City within ten (10) days after receiving actual notice that the Provider or an employee of the Provider within the State of Indiana has been convicted of a criminal drug violation occurring in the workplace. 15. E-Verify. The Provider hereby certifies that it does not and will not knowingly employ or contract with an unauthorized alien, nor retain any employee or contract with a person that the Provider subsequently learns is an unauthorized alien. The Provider agrees that he/she/it shall enroll in and verify the work eligibility status of all of the Provider's newly hired employees through the E-Verify program as defined by Ind. Code 22-5-1.7-3. [Signature page follows.] i:.HULL July 25, 2016 Mr. Chris Dressel Brownfield Coordinator City of South Bend Department of Community Investment 227 West Jefferson Blvd., Suite 1400 S South Bend, Indiana 46601 RE: Proposal to Implement a Groundwater Remedy; Conduct Quarterly Groundwater Sampling; and Fulfill Regulatory Requirements at Oliver Industrial Park, South Bend, Indiana (the Site); SBI074.300.0001. Dear Mr. Dressel: Hull & Associates, Inc. (Hull) is pleased to present the City of South Bend Redevelopment Commission (Client) the following proposal to provide professional engineering services for the above referenced project. The purpose of this document is to establish the Scope of Work as we understand it and to - provide a fee schedule for the project. Site Physical Setting and Background The Site is located approximately one mile southwest of downtown South Bend. From 1876 to 1989, activities at the Site included manufacturing of farm machinery and implements. The Site consists of several vacant lots and commercial/light industrial businesses, and is bordered by commercial/industrial properties to the southwest, south, and east of the Site; and an active rail line along the northern boundary of the Site. Residential properties are located across the western and northern boundaries of the Site. The Site is comprised of both vacant developed parcels totaling approximately 14.45 acres (+/-) of land located near the intersection of Chapin Street and Oliver Plow Court in South Bend, Indiana. The Site formerly comprised approximately 36 acres of land, but the City and private entities have redeveloped portions of the Oliver Industrial Park, effectively removing certain parcels of the Site from inclusion in the VRP. Multiple environmental assessments have been conducted at the Site. Soil sampling completed thus for has revealed that benzo(a)pyrene, dibenz(a,h)onthracene, tetrachloroethene, and TPH (historically detected in one location by obsolete method 41 8.1) are the only chemicals of concern (COCs) in soils that historically exceeded their respective VRP Tier II Nonresidential Cleanup Goals. Hull coordinated excavations in May through June 2016 that removed the last of the known COCs in soils at the Site. Soil remediation is now considered complete and a summary report documenting these activities will be submitted to the City in July 2016. Extensive on- and off -Site groundwater testing completed thus far has revealed that tetra chloroethene (PCE), trichloroethene (TCE), and vinyl chloride (VC) are the only COCs in groundwater that exceed their respective VRP Tier II Nonresidential Cleanup Goals or the Indiana Department of Environmental Management's (IDEM's) 2012 Remediation Closure Guide (RCG) Commercial and/or Residential Groundwater Screening Levels. In December 2011, Hull submitted a RWP for the Site that presented a general path forward for additional assessment and remediation pursuant to VRP requirements. In May 2013, IDEM responded with comments to the RWP. The City and Hull responded to IDEM's comments in a letter dated August 1, 2013. That August 1, 2013 letter outlined additional assessment activities that would be initiated by the City, which were subsequently completed. After ongoing correspondence between the City, Hull, and IDEM that corroborated general agreement that the Site was on an acceptable path toward an appropriate groundwater remedy, Hull submitted an amended RWP in December that proposed limited soil excavation and a relatively extensive on -Site groundwater remedy. To date, IDEM has not issued formal approval of 6397 Emerald Parkway, Suite 200 • Dublin, Ohio 43016 614.793.8777 fox 614.793.9070 www.hullinc.com Mr. Chris Dressel July 25, 2016 SBI074.300.0001 Page 2 the December 2015 RWP, but issued interim approval to the City to conduct the limited soil excavations in Spring of 2016. As stated above, those excavations were completed by Hull and its subcontractor in May -June 2016. In telephone conversations between Hull and IDEM in June and July 2016, IDEM has verbally indicated that it will also issue interim approval to the City to implement the groundwater remedy during Summer 2016 pending final review and comment on the December 2015 RWP. Given the current status of the Site, the following additional activities are proposed: Task 1 Routine Groundwater Monitoring Task 1 a Pre -Remedy; 180 days, 365, 545, and 730 Days Post -Remedy As further explained in Task 3 below, Hull proposes to retain the services of Innovative Environmental Technologies Inc. (JET) to introduce a groundwater remedy into the subsurface that will stimulate the degradation of VOCs in groundwater beneath the Site. JET's scope involves reviewing certain groundwater data collected by Hull to establish a baseline and to evaluate the effectiveness of the remedy after it is initiated. Before the remedy is initiated, and 180 days, 365 days, 545 days, and 730 days following the remedy event, Hull will collect groundwater samples from monitoring wells in the vicinity of and downgradient from the PRB walls and analyze the samples for the following parameters: - Volatile organic compounds (VOCs) in accordance with U.S. EPA Method 8260; - Ethene, ethane, and methane in accordance with Method RSK 75; - Sulfate in accordance with U.S. EPA Method 300.0; and - Total and dissolved iron in accordance with U.S. EPA Method 6010. Groundwater samples during these events will be collected using low -flow methods. During low -flow sampling events, the following parameters will be monitored: - Groundwater elevation; - Dissolved oxygen; - Oxidation-reduction potential; - Specific conductivity; - pH; and - Temperature. Groundwater samples will be collected from monitoring wells MW-1S (shallow screened depth), MW-11 (intermediate screened depth), MW-1 D (deep screened depth), PMW-1 1, MW-135, MW-145, MW-165, MW-171, MW-17D, HMW-19, MW-20S/D, MW-21 S/D, MW-22S/D, MW-23S/D, MW-24, MW-25S/D, MW-26S/D, MW-27S/D, MW-28S/D, MW-29S/D, and MW-305/D and submitted to the laboratory for VOC analysis using U.S. EPA Method 8260. This cost estimate also includes costs for laboratory analyses on samples collected from replacement monitoring wells installed as part of Task 2 below. To save some cost, this cost estimate assumes that samples from only 32 of the aforementioned monitoring wells will be analyzed for the additional parameters requested by IET (ethane, ethene, methane, sulfate, and total/dissolved iron). As noted in Task 2 below, we will attempt to negotiate with IDEM a reduced number of replacement monitoring wells (and therefore groundwater samples that must be analyzed) to save costs for the City wherever possible. Duplicate samples will be collected at randomly selected monitoring well locations. Field/equipment blanks will also be collected and submitted along with a trip blank for analysis as part of QA/QC of field procedures. Purge and decontamination waters will be collected and stored in U.S. DOT -approved 55- gallon drums. Costs to remove, transport, and dispose of up to twenty 55-gallon drums of containerized groundwater (which is presumed to be non -hazardous) are included in this task. Mr. Chris Dressel July 25, 2016 581074.300.0001 Page 3 Task 1 b Interim Quarterly Groundwater Monitoring Groundwater samples will be collected from monitoring wells MW-1S (shallow screened depth), MW-II (intermediate screened depth), MW-1 D (deep screened depth), PMW-1 1, MW-135, MW-145, MW-165, MW-171, MW-17D, HMW-19, MW-20S/D, MW-21 S/D, MW-22S/D, MW-23S/D, MW-24, MW-25S/D, MW-26S/D, MW-27S/D, MW-28S/D, MW-29S/D, and MW-30S/D and submitted to the laboratory for VOC analysis using U.S. EPA Method 8260. This cost estimate also includes costs for laboratory analyses on samples collected from replacement monitoring wells installed as part of Task 2 below. As noted above, Hull will endeavor to reduce as much as possible the number of samples to be analyzed to save the City costs wherever possible. Duplicate samples will be collected at randomly selected monitoring well locations. Field/equipment blanks will also be collected and submitted along with a trip blank for analysis as part of QA/QC of field procedures. Purge and decontamination waters will be collected and stored in U.S. DOT -approved 55- gallon drums. Costs to remove, transport, and dispose of four 55-gallon drums of containerized groundwater (which is presumed to be non -hazardous) are included in this task. For the proposed sampling events, Hull will continue to deploy passive diffusion bag (PDB) samplers in all monitoring wells, which are a significantly more cost-effective .sampling methodology that has been accepted by IDEM. PDBs are polyethylene bags filled with onalyte-free water that are hung in monitoring wells for a minimum of 14 days. Field personnel return to the monitoring well, retrieve the sampler, and collect the sample by filling sampling vials in the same manner as traditional methods. Significant savings are realized by reducing mobilization, purging., and sampling time; by minimizing the volume (and thereby cost and environmental footprint) of field materials such as low -flow tubing; and by eliminating most equipment rental costs. Laboratory analytical subcontractor costs for this Task include the cost of replacing PDBs during each semi-annual sampling event at each well, and for Level IV QA/QC reporting by the laboratory. Task 2 Replace Decommissioned Monitoring Wells IDEM has indicated that certain monitoring wells that have been decommissioned to accommodate redevelopment of the parcels sold to Indiana -Michigan Power and ABC Supply must be replaced. This cost estimate assumes replacement of two nested shallow and intermediate monitoring well clusters and one nested shallow, intermediate, and deep monitoring well cluster — for a total of seven monitoring wells at three separate locations — will be required. However, because the monitoring well network is already relatively extensive, Hull will attempt to negotiate fewer monitoring wells than the proposed seven. Hull will work with the drilling subcontractor, the property owners, and the appropriate City and St. Joseph County authorities to arrange for access for the work and to clear utilities and to prepare appropriate permits for drilling in the right-of-way, if necessary. Drill cuttings and sample purge and decontamination water will be containerized and placed at a location designated by the City. Following agreement between the City, IDEM, and Hull on the final quantity and locations of the monitoring wells, the nested monitoring wells will be installed on- and/or off -Site at the agreed upon locations. Soil borings associated with the proposed monitoring wells will be drilled using 4.25-in., inside -diameter hollow -stem augers and continuously sampled using 24-in. split -spoon samplers to the appropriate depths (currently proposed to be 25 feet for shallow wells, 40 feet for intermediate wells, and 55 feet for the sole deep well at one clustered location). The final locations of the monitoring wells may be modified based on field observations. Although the deepest boring at each location will be continuously sampled, soil samples are not proposed to be submitted for laboratory analyses as part of the monitoring well installation. Regardless, as standard procedure, the Hull field personnel will screen soils with a photoionization detector (PID) during sail boring logging to evaluate for the presence of soil contamination. Mr. Chris Dressel July 25, 2016 SBI074.300.0001 Page 4 Monitoring wells will be constructed of two-inch inside diameter Schedule 40 PVC slotted screens and risers. Once the targeted depth has been reached, the well column will be slowly lowered to the base of the borehole. A clean silica quartz sand filter pack will be placed around the screen and will extend no more than two feet above the top of the screen. Sodium bentonite chips or pellets will then be placed on top of the sand pack. Above the chips or pellets, a thick bentonite slurry will be pumped into the annular space using a tremie pipe to a depth of approximately three feet below ground surface. The remaining three feet will be filled with concrete to anchor either a flush -mount manhole or above -grade protective casing. Monitoring wells will be developed following installation to remove fines that may have entered the well screen or filter pack during installation. Well development activities will continue until pH, temperature, and conductivity have stabilized for three consecutive well volumes, or until five well volumes have been removed, whichever is greater. Development waters will be collected and stored in a DOT approved 55- gallon drum. Costs to remove, transport, and dispose of approximately 25 55-gallon drums of containerized groundwater and drill cuttings (which are presumed to be non -hazardous) are included in this task. Following the installation of the new monitoring wells, the top of casing and ground elevations of the new wells will be surveyed so that the groundwater elevations measured in these wells can be compared relative to the other wells in the monitoring network. Costs include a surveying event from Jones Petrie Rafinski to tie the new wells into the monitoring network. Task 3 Implement Groundwater Remedy Following interim approval from IDEM of the groundwater remedy proposed in the December 2015 RWP, Hull will retain the services of IET to introduce a groundwater remedy into the subsurface that will stimulate the degradation of VOCs in groundwater beneath the Site. A pre -remedy on -Site meeting will occur between Hull, IET, the City, and affected property owners to coordinate staging of materials prior to the injections; to secure a water supply for the injections; and to present the overall scope and schedule of the events to all stakeholders. Hull will provide limited oversight during the groundwater remedy but is not proposing to remain on -Site full time for the duration of the injection event, currently projected to take nine (9) days to complete. As summarized in IET's proposal included in Attachment A, a groundwater remedy consisting of injection of three permeable reactive barrier (PRB) walls at three locations is proposed. IET's scope involves reviewing certain groundwater data collected by Hull to establish a baseline and evaluate the effectiveness of the remedy after it is initiated. Before the remedy is initiated, and 180 days, 365 days, 545 days, and 730 days following the remedy event, Hull will collect groundwater samples from monitoring wells in the vicinity of and downgradient from the PRB walls and analyze the samples for the parameters presented in Task 1 a above. The laboratory data will be provided to IET and a brief summary of the continued efficacy of the groundwater remedy will be prepared by IET and included in Hull's quarterly reports as presented in Task 4 below. Finally, as requested by the City, Hull's standard subcontractor markup will be reduced to 5% for IET's costs. Task 4 Prepare Quarterly Reports and Various VRP Documents This task is proposed to assist with a public notice of the intent of the City to proceed with the proposed remedy, should it be required by IDEM. This task also includes effort to prepare quarterly reports summarizing data collected during each pre- and post -remedy sampling event, for a total of nine quarterly reports. The quarterly report summarizing data collected following the 180-day post remedy sampling event as presented in Task 1 a above will include a summary of the groundwater injection event. Also, the quarterly report summarizing data collected following the monitoring well replacement event will contain a narrative and monitoring well construction diagrams summarizing monitoring well installation activities. Mr. Chris Dressel July 25, 2016 SBI074.300.0001 Page 5 Assuming that only one groundwater injection event occurs, and assuming that the remedy is effective with the single injection event, the ninth quarterly report will be prepared as a Remedial Completion Report (RCR). A RCR Completeness Checklist, which is required by IDEM, will be prepared and submitted with the RCR. Finally, assuming no additional environmental activities occur, the RCR will request a Covenant Not - to -Sue (CNS) for the Site. This task includes time to coordinate final documents between IDEM and the City to the end of obtaining the CNS. Task 5 Proiect Management Meetings and Correspondence This task will be reserved for project management activities such as updating health & safety plans, email and telephone correspondence with all stakeholders, and attending one meeting in Indianapolis with IDEM. SCHEDULE Hull will begin groundwater sampling activities in September 2016, and will schedule the soil vapor probe installation and sampling as soon as practicable, which we estimate to be in early- to mid -July 2016. COMPENSATION A breakdown of costs is attached as Table 1. The fees have been developed based on our estimate of hours for each labor category expected to be involved in the project. The project will be billed on a four - week basis with payment due to Hull within thirty days after receipt of an invoice. ADDITIONAL WORK Additional work beyond the Scope of Work defined herein shall not be performed until such time as an amendment to this proposal, including the scope of the additional work and associated costs, has been prepared in writing to address the additional work and said amendment has been approved by the Client in writing. Specific items not within the Scope of Work on this project include, but are not limited to the following 1. Installation of more than seven (7) monitoring wells at the Site; 2. Collection of more than 9 quarters of groundwater samples as described in Tasks 1 a and 1 b above; 3. Completion of more than one groundwater remedy injection event as described in Task 3 above; and A. Disposal of groundwater or soil cuttings that are determined to be hazardous. No amendment to this proposal shall be required in situations where additional work may be necessary, as a result of unanticipated or unidentified conditions including, but not limited to, the presence of unidentified or mislocated buried utilities, structures, or objects and unanticipated hazardous materials and/or hazardous or dangerous circumstances, to complete previously identified tasks. Hull shall be compensated for the actual time spent performing this additional work and other direct expenses and subcontractor fees at the billing rates outlined in Table 2. STANDARD OF CARE AND LIMITATIONS Hull shall perform its services using that degree of care and skill ordinarily exercised under similar conditions by reputable members of its profession practicing in the same or similar locality at the time of Mr. Chris Dressel July 25, 2016 S131074.300.0001 Page 6 service. No other warranty, expressed or implied, is made or intended by our proposal or by our oral or written reports. The work will not attempt to evaluate past or present compliance with federal, state, or local environmental or land use laws or regulations. Conclusions presented by Hull regarding the Site to be investigated shall be consistent with the Scope of Work, level of effort specified, and investigative techniques employed. Reports, opinions, letters and other documents will not evaluate the presence or absence of any compound or parameter not specifically analyzed and reported. The presence of radiation, radon, lead, electromagnetic fields, and indoor air pollution will not be investigated, unless specifically stated in the scope of work. Hull makes no guarantees regarding the completeness or accuracy of any information obtained from public or private files or information provided by subcontractors. Again, thank you for the opportunity to conduct additional Phase II ESA and Phase III remedial activities at Oliver Industrial Park. Please call me at (800) 241-7173 if you have any questions. If you approve of this proposal, please sign the attached Task Order form and return it to my attention. Sincerely, / (— Douglas G. Stuart, CHMM Senior Project Manager Attachments ct: File TASK ORDER FORM TASK ORDER TO PROPOSAL FOR PROFESSIONAL SERVICES HULL & ASSOCIATES, INC. TASK ORDER NO: 001 HULL PROJECT CODE: SBI074 PROPOSAL NUMBER: SBI074.300.0001 Subject to the terms and conditions of the above referenced Contract, the Consultant agrees to perform the following Scope of Work as follows: Coordinate implementation of a groundwater remedy, replace monitoring wells, sample groundwater, and prepare documents for regulatory submittal associated with a plume of chlorinated VOCs at the Oliver Industrial Park Property located near Oliver Plow Court, South Bend, Indiana, as further described in Hull document number 591074.300.0001 dated July 25, 2016. Task 1 a: Pre- and Post -Remedy GWS (5 events) $ 86,259 Task 1 b: Interim GWS Events — VOCs only (4 events) 26,636 Task 2: Replace Monitoring Wells 22,819 Task 3: Implement Groundwater Remedy 318,557 Task 4: Prepare Quarterly Reports and VRP Documents 25,750 Task 5: Project Mgmt., Meetings, Correspondence 10,870 PROJECT TOTAL $491,160 NUMBER OF COPIES OF DELIVERABLE: ESTIMATED TOTAL COST: as required for IDEM and Client needs $491,160 HULL & ASSOCIATES, INC. PROJECT CONTACT: Doug Stuart CLIENT PROJECT CONTACT: Mr. Chris Dressel CLIENT AUTHORIZATION: DATE: (Please return one signed original to Hull & Associates, Inc.'s Project Contact and retain one signed original for Client's records). rr_���� Task la Y F z17 Task 2 Task 3 TABLE 1 ADDITIONAL PHASE II ESA AND PHASE III REMEDIAL ACTIVITIES CITY OF SOUTH BEND, INDIANA OLIVER INDUSTRIAL PARK Pre -Remedy, 180-, 365-, 545-, and 730-day Post -Remedy GWS Events Labor Subcontractor Costs (including 10% markup) Equipment Supplies Miscellaneous Costs Estimated Cost $ 5,550 $ 8,731 $ 1,250 $ 125 $ 1,650 Task la Per -Event Subtotal $ 17,306 Task la Subtotal (5 Events) $ 86,529 Interim GWS Events - VOCs Only - 4 events Labor Subcontractor Costs (including 10% markup) Supplies Miscellaneous Costs Task 1 b Per -Event Subtotal Task I Subtotal (4 Events) Replace Decommissioned Monitoring Wells Labor Subcontractor Costs (including 10% markup) Equipment Supplies Miscellaneous Costs Groundwater Remedy Implementation Labor Subcontractor Costs (including 5% markup) Miscellaneous Costs $ 2,265 $ 3,069 $ 50 $ 1,275 $ 6,659 $ 26,636 $ 4,800 $ 16,594 $ 350 $ 225 $ 850 Task 2 Subtotal $ 22,819 $ 7,840 $ 309,767 $ 950 Task 3 Subtotal $ 318,557 Task 4 Prepare Quarterly Reports and Various VRP Documents Labor $ 25,400 Miscellaneous Costs $ 350 Task 4 Subtotal $ 25,750 Task 5 Project Management, Meetings, and Correspondence Labor $ 10,600 Miscellaneous Costs $ 270 Task 5 Subtotal $ 10,870 TOTAL PROJECT BUDGET $ 491,160 HULL & ASSOCIATES, INC. JULY 2016 DUBLIN, OHIO SBI074.300.0001.XLS :■■HULL TABLE 2: 2016 BILLING RATE SCHEDULE MANAGEMENT STAFF SCIENTISTS Senior Principal .................................................. $250 Principal Scientist........................................... $150 Principal............................................................... $180 Senior Scientist................................................ $130 Senior Project Manager ................................... $150 Project Scientist............................................... $1 10 Project Manager ................................................ $130 Scientist 2 ............................................................ $95 Government & Community Relations ............. $110 Scientist 1............................................................ $80 ENGINEERS Principal Engineer .............................................. $150 Senior Engineer .................................................. $130 Project Engineer ................................................. $1 15 Engineer2..............................................................$98 Engineer1..............................................................$85 Senior Designer.....................................................$95 Designer.................................................................. $75 HYDROGEOLOGISTS Principal Hydrogeologist................................. $150 Senior Hydrogeologist...................................... $130 Project Hydrogeologist..................................... $1 1 0 Hydrogeologist 2..................................................$95 Hydrogeologist 1..................................................$80 SUPPORT STAFF Senior GIS Specialist ..................................... $100 GISSpecialist....................................................$75 Senior Technician .................................. ............. $70 Technician 2.........................................................$60 Technician1........................................................$50 Project Administrative Assistant ......................$50 NOTES: 1. Hourly billing rates for personnel apply to actual time spent in meetings concerning the project, preparing for such meetings, project coordination time, design activities, field and office investigations, and travel time when job -related. 2. If personal vehicles are utilized, travel mileage is billed at the federal mileage reimbursement rate. If company -owned vehicles are utilized, rental rates of $120/day, $350/week, or $1,000/month are used in lieu of travel mileage. If rental vehicles are utilized, the actual cost of the rental and gasoline will be billed directly with no mark-up. 3. Air transportation fees are billed directly with no mark-up. Travel time is typically billed only for that time actually spent flying to/from the project location and does not include layovers, delays, etc. 4. Project reimbursable expenses such as reproduction by vendors, overnight shipping, meals, and lodging associated with travel or extended field activities, etc. are billed directly with no mark-up. 5. Field equipment rented from outside vendors is billed directly with no mark-up. Field equipment owned by Hull, including individual equipment items or groupings of equipment such as sampling kits, are billed at competitive market -equivalent rates for daily or weekly rental. 6. Subcontractors' fees are billed to the Client at a rate equal to the subcontractor fee multiplied by 1.15 to recover Hull's contractual liability risk and associated operational expense. 7. Higher hourly billing rates may apply for certain services on a project -specific basis (e.g., Ohio Certified Professional, expert witness services, rapid response consulting). HULL & ASSOCIATES, INC JULY 2016 DUBLIN, OHIO SBI074.300.0001 ATTACHMENT A Groundwater Remedy Subcontractor Proposal 'mim.NoI 1! a' 1 Revised Proposal to Treat CVOC Contamination using Reductive Dechlorination via Synergistic Technologies to Hull & Associates Inc. For Oliver Plow Site South Bend, IN July 2016 Innovative Environmental Technologies, Inc. 6071 Easton Road Pipersville, PA 1847 MGM Hull &Associates Inc. Page 2 July 14, 2016 Hull & Associates Inc. Doug Stuart Dear Mr. Stuart: Innovative Environmental Technologies Inc. (IET) has included a revised remedial design and quotation for the Oliver Plow site located in South Bend, IN. The site has been identified as having impacted soils and groundwater due to the historic use of tetrachloroethene (PCE) and trichloroethene (TCE). Based on the provided soil borings, groundwater concentrations, screened intervals for monitoring points and historic geochemical parameters, a design which will stimulate reductive dechlorination processes in the subsurface is proposed. Concentrations of PCE and its reaction products, trichloroethene (TCE), cis-1,2-dichloroethene (cis-1,2-DCE) and vinyl chloride (VC) indicate that reductive dechlorination is occurring at the site at a rate that needs to be stimulated. The recommendations presented herein are based on IET's experience at over 200 similar sites, IET's experience with a variety of oxidative and reductive technologies and IET's ability to integrate a variety of remedial products forthe optimal remedial process. Further, the remedial approach presented herein is covered by three IET United States Patents and one IET United States Patent Application. 1) "Apparatus for In -Situ Remediation Using a Closed Delivery System", Patent Issue Date: May 16, 2006 Patent Number 7,044,152. 2) "Method for Accelerated Dechlorination of Matter', Patent Issue Date: October 31, 2006, Patent Number 7,129,388. 3) "Method for Accelerated Dechlorination of Matter', Patent Issue Date: May 12, 2009, Patent Number 7,531,709 (continuation of "388"). 4) "Method for the Treatment of Groundwater and Soils Using Mixtures of Seaweed and Kelp", Patent Application #6124509, July 2009. 5) "Inhibition of methane production during anaerobic reductive dechlorination, by restricting the effectiveness of the enzymes and coenzymes that catalyze methanogenesis" Patent Application # 13/785,840, March 2013. 6) "Use of encapsulated substrates to control the release rates of organic hydrogen donors and accelerate the biotic process of anaerobic reductive dechlorination in soil and groundwater" Patent Application # 13/891,934 November 2012. The following proposal will set -forth a lump sum price for the design, implementation and follow up of this process. The following proposal is designed to mitigate off -site migration and address source area contamination that is local to the injection areas on -site. Hull & Associates Inc. Page 3 All costs included in the lump sum price are listed below. • All chemicals and materials necessary to complete the proposed plan • All equipment and personnel required to execute the proposed plan • Handling and Management of materials on site • Mobilization/Demobilization of the injection crews • All per diem for the required crews • Site Restoration • Health and Safety Plan • Final field injection report • Final plot of injection points • Six quarterly data analysis reports provided at no cost based on analytical data provided by Hull & Associates Inc. Hull mAssociates Inc. Page Table of Contents OBJECTIVE...................................................... ................................................................................. 4 PERMEABLE REACTIVE BARRIERS .................................................................................................... 6 PR8-4................................................................ ......... ... .......................... ........................... 5 PRU'U.................................................................................... .................................................... 6 PRD'C......................................................................................................................................... 7 SCOPE0FSERVICES ......... ............................................................................................................... 7 SUMMARY............................................................ .......................................... ............... ............. 10 APPENDICES: ......................................................................................................... ........................ lZ APPENDIX1:SITE MAP .................................................................................................................. 1Z APPENDIX 2:DOSAGE CALCULATIONS ............. ............................................................................ 1J PRD'A............................................. .... ................................................................................... 19 PKD'B...................................... ................................................................................................ 13 PK8'C....................................................................................................................................... l4 APPENDIX J:TECHNOLOGY DISCUSSION ...................................................................................... 15 Hull & Associates Inc. Page 5 OBJECTIVE It shall be the objective of IET to promote the conditions in -situ, necessary for accelerated dechlorination via both abiotic and microbial processes along three permeable reactive barriers (PRB). Further, through the introduction of a 1-3 micron zero valent iron colloidal suspension, reduction of the dissolved phased CVOCs will occur while initiating the production of hydrogen for microbial mineralization processes in order to mitigate off -site migration and further stream impact. The remedial plan described herein is designed to treat source area and residual contamination through reductions of CVOCs in the saturated zones. No additional equipment or maintenance will be required and because no waste streams will be generated, no disposal permitting will be required during the remedial effort. IET proposes to implement a program, which shall: • Supply all essential microbial elements necessary for dechlorination processes to occur. • Introduce zero valent iron (ZVI) to further and quickly address dissolved phase compounds while acting synergistically with the anaerobic processes. A map of the site and the proposed PRB locations is presented below. PERMEABLE REACTIVE BARRIERS U.T. -t PRB-A encompasses approximately an area of 6,280 square feet. This area will be treated with a 25 foot vertical contaminated zone from 20-45 feet below ground surface (bgs). An injection radius of 20 feet is proposed to treat the area. Based on the area to be treated and the injection radius, 5 injection points would be required to treat the area with 5 injection intervals at 23-25, 28-30, 33-35, 38-40 and 43-45 feet bgs. Soil concentrations are assumed to be moderate to low Hull & Associates Inc. Page 6 in PRB-1 based on groundwater concentrations present, therefore, soil absorption correction is moderate to low (IET has assumed the value to be 5%). The Freundlich equation is an adsorption isotherm that relates the concentration of a solute on the surface of an adsorbent to the concentration of the solute in a liquid. The Freundlich equation is used to determine the theoretical mass of contamination adsorbed to the soil. The mass of contaminant in the soil was determined using the soil adsorption correction (item 1). The K constant is a figure relating the capacity of the adsorbent for an adsorbate and the 1/n constant is a function of the strength of adsorption (American Water Works Association, Water Quality and Treatment, 1999 ). The Freundlich equation is listed below: qe=KCel/n The theoretical values of K and 1/n are found in the following references: (Dobbs and Cohen, 1980/Faust and Aly, 1983). MNA and Enhanced Attenuation (MNAJEA) '"-�'. irM"�.� Cha.+u+� axanaot(nn: oycat axeni.utwr• tiyWy.:a thfiury rmiwN +bb+Petld altl6lle /ulIY1W WSW et.xaioat •.AtIW.._eYgntlalldn •Mwax'm� ��� Cerk.ntnaM DRu�://un. bsrtWr _ n4�artn� J % C9f6em M1xi ! Flur rodnatan a.e / 14 Raalfa� k®tlq Mn.wP FMit xtm aowta �'rv�"'{Mkhl aylaainti pYnMI Mlnanl RsYalcel e •l%Q4alan • edwcelan PRB-B PRB-B encompasses approximately an area of 10,048 square feet. This area will be treated with a 25 foot vertical contaminated zone from 20-45 feet below ground surface (bgs). An injection radius of 20 feet is proposed to treat the area. Based on the area to be treated and the injection radius, 8 injection points would be required to treat the area with 5 injection intervals at 23-25, 28-30, 33-35, 38-40 and 43-45 feet bgs. Soil concentrations are assumed to be moderate to low in PRB-2, based on groundwater concentrations present, therefore, soil absorption correction is low to moderate to low (IET has assumed the value to be 5%). Hull & Associates Inc. Page 7 PRB-C PRB-C encompasses approximately an area of 16,328 square feet. This area will be treated with a 25 foot vertical contaminated zone from 20-45 feet below ground surface (bgs). An injection radius of 20 feet is proposed to treat the area. Based on the area to be treated and the injection radius, 13 injection points would be required to treat the area with 5 injection intervals at 23-25, 28-30, 33-35, 38-40 and 43-45 feet bgs. Soil concentrations are assumed to be moderate to low in PRB-3 based on groundwater concentrations present, therefore, soil absorption correction is moderate to low (IET has assumed the value to be 5%). SCOPE OF SERVICES 1. SATURATED ZONE INJECTIONS The following sequence will be followed when injecting into the saturated zone in the on -site and off -site treatment areas. 1. Subsurface Pathway Development Initially, nitrogen gas shall be delivered to the subsurface via IET proprietary injection trailer system. Nitrogen gas is used so as not to introduce oxygen into an environment targeted for anaerobic processes. The gas is introduced at approximately 175 psi such that delivery pathways and voids are established. Pathway development shall be verified by observing a substantial pressure drop. 2. Sodium Sulfite, Nutrient and Micro Nutrient Injection A solution of sodium sulfite, nutrient and micro nutrients (riboflavin and vitamin B-12) are immediately injected into the subsurface fractures and voids that were developed during the gas injection step. Sodium sulfite acts as an oxygen scavenger, iron reducer and sulfate source. As an oxygen scavenger, the sodium sulfite prevents the oxidation of the ZVI by the dissolved oxygen while promoting anaerobic conditions that are favorable for the biodegradation of the CVOCs. Nutrients, injected as organic ammonia and ortho-phosphate, are required for the maintenance of the microbial metabolic pathways, ATP/ADP synthesis and organelle development. 3. ZVI and Provect-IR Injection ZVI and Provect-IR are injected immediately following the sodium sulfite/bioslurry solution to reduce concentrations of dissolved -phase CVOCs while providing for rapidly generated hydrogen for the microbial stimulation. Hull & Associates Inc. Page 8 4. Sodium Sulfite/Nutrient Injection This injection is conducted to clear the injection lines and to provide for in -situ mixing and penetration of the Provect-IR product. 5. Post Liquid Injection - Gas Injection Lastly, the injection lines are cleared of liquids and all injectants are forced into the created formation and upward into the vadose zone. Once the injection cycle is complete, the injection point is capped to allow for the pressurized subsurface to accept the injectants. The targeted saturated zone at the site shall receive calculated dosages of the individual remedial components based on biological and stoichiometric demands and an estimated pore volume based on the known geology of the site. Equipment Description The injections small occur via IET's mobile oxidation injection trailer and IET's direct -push equipment as described: Injection Lines: High Pressure Stainless steel Braided Rubber one inch diameter hoses Injection Trailer: IET Self-contained injection trailer, consisting of: two 120 gallon conical tanks capable of maintaining unto 30% solids as a suspension via lightning mixers; on -board generator, all stainless steel piping system, 2" pneumatic diaphragm pump with an operating pressure of 110 psi.; on -board 25 CFM/175 psig compressor with 120 gallons of air storage; self contained eye wash and safety shower. Injection Rods: IET proprietary injection rods with retractable injection zones and backflow protection Injection zones of 18 inches are to be used in combination with 24" injection AWJ- Rods where appropriate. HuII & Associates Inc. Page 9 Injection Equipment IET Self -Contained Oxidizer Injection System - consisting of - all stainless steel 316 piping, compressors (175 psi/25 CEM), on -board generator, self-contained safety shower and eye wash stations. The system has a spray -on rubber lined floor and walls, with bermed secondary containment. IET 20' MOBILE INJECTION SYSTEM Injection Feed Tank —Configuration Feed Systems, Safety Systems, Compressed Gas Systems All piping Welded Stainless Steel Floors Coated in Chemical Resistant RinoLinin2 HuH & Associates Inc. Page 10 SUMMARY Innovative Environmental Technologies, Inc. presents this proposal as a "Lump -Sum" amount based on the treatments areas and is proposed to cost $295,015.74. IET estimates that it will take 9 days to implement the remedial design with a 1 day for materials receiving and site set- up. The price present herein is guaranteed regardless of the actual field time required to implement the program described herein. Freundlich Factor(%) A..(Y n Ta ehd Zow Horaon ROUt CuNrYardsl Nlaftmablpt I Total Intervabi Days i both'Ph. I Area Cost S) PRBA 5 6290 20-05' 25 20 5815 5 25 2 5 518,273.46 515.71 $9136730 F" B 5 10048 20<5' 25 20 9309 5 40 3 8 512,740.84 S1o96 $101,926.68 PRBC 5 16328 20-05' 25 20 15119 5 65 4 13 57,824.95 1671 5101,721.75 Total 3;6561 130,231 130 _ 9.OU 26 5295,015.74 9 Days MoWva HandDOmim MobJvsfion and Demobilmiban for Two Crews Aa Patesd Lila.e, s41UC.wa Tsw Complete sere oflnjecrion Log SM rofor Site M1tanegenrnt As -Built InIcfion Maps Data Aimlysis Quart AY-orfls appmpnete C mpintcd Iar ion Report and Feld Summary _, _. .. ....._ AU Commsables: Rmtosdh PelleN:A phalt Pflhh; Coacret etc 5 to Restamdon Pm'eLct Health aMSfed Plan The "Lump -Sum" price set -forth assumes that a water supply and a secure storage area for chemicals are available forthe duration of the project. Hull & Associates Inc. Page 11 Recommended Sampling: Field Sampling: Dissolved Oxygen (DO), Oxidation/Reduction Potential (ORP), Specific Conductivity, PH Temperature and Groundwater Elevation. Laboratory Analyses: Method 8260 VOCS TCE PCE Cis-1,2-DCE Trans-1,2-DCE 1,1-DCE Vinyl Chloride Ethene Ethane Methane Sulfate Total and Dissolved Iron Recommended Sampling Schedule: Time Zero (Prior to Injections); 180 days, 365 days; 545 days, 730 days Hull & Associates Inc. Page 12 APPENDICES: APPENDIX 1 (SITE MAP) Hull & Associates Inc. Page 13 APPENDIX 2: DOSAGE CALCULATIONS PRB-A Valenals 250ti .8u B2 $020 1123_0 Pro.e_c1-IR $265 $29 5 - - din _---- $721 522 250 Sulfite _- 82 31 - - $577P 75 Nutrient $325 $243 ] _ 5000 Pponate _ $395 $1915.A 180664 B12 $795 E14,9526 abor )ItdlmPmbe -- - 2 f1S0000 E200000 L1.ofI _052 Eq.]500 _ $2,50000 )a,s 11B t Taller _ 2 _ _ _$2,]50.00 $250000 u,manon )ay�lET supeMsion etc 2 E1250.00 $250000 MM Time IB2-Grams ProveOf-IR ZVl-Ibs Sul/lfe 5016.95 22W 227 50 Tdd15 25084.00 11250 1135 250 P OInl SummafY Number al Poin6 5 Grzms B2/el 5018.90 Pounds ProvecblR -- -___.. Pountls miwpt _ . 22> Pountls a/Sulfite/Pf un _ Potls o/Nu10e Pound icratnele __. - - _ 1000 - Cast Fer Point Point E1B•2]3.46..__. _. ____ _. __ _._ ... ... REBA Injectln Summary'. Injection it Injeehon#2 N3 j..io.ad Iryed On pb_ Ceptb of Injection - _ 23-25_'_ 2940' _.Injecton 33d5' 3040' 4345' Grams B2/nl - 100340 100g0 100340 100 1003.40 untl Pos mZNnnI 45 45 45 45 45 _ PoundsP _ 450 450 450 450 450 lR/n P.-As lSuMerdn 10 .-_..10 _. 1U ........ 10 10 -.... Pountl of Nomm0nl. - 3 3.. 3 3. ... 3... _.... - B12 -- ]2.2] ]22] ]22] 702 -- -_ ]22] 200 - 200 200 - - 200 - 200 _. ..._.. _- _. _. TOlil E9136].]0 Gallon ISUI/yedotn_e_n_ad 100 100 100 100 1p0 Y lyrpionele solmill 4013500 02 $2 A6 23A 9000 PmvaR-IR $255 $.8 1502 2N $3E1 2005u1fi1e $21 $4 120 Nutrient $325 Eq 95 $3 d0.00 Prop anaR $395 $229 989083 812 $795 E299 Ee3,a rm al Probe _ 3 _ $t 500475n 0 $45G1a( tropen 0_50 $2.7W W E2,3]5.0( ap OIIETIIdlordtTrailer _ 3 $2]50.00 $82500( bdi lEi pe'lon to -'+ g1250 _00 $3 ]500( ibar E188]5.0 Total $101,926.68 Type B2-Grams Protect-IR ZVI- bs Sulfite 5016.90 1125 199 I 25 Wells 4013580 9W0 1892 210 POInt Summery NumOerol PoinB.... .. _ Grams 91/p[ .. .-5018 88 Pountls Protect-IR _1125 Pountlsof 199 Ponma nt3ulswmelpl- 25 Pountl. of Nulrientlnl 15 Pountls of Propionate 5,00 costper Point E12•]40.34.64 PRBB. Injection summary: Injection In_-2-" N2 I_njed _p3 Injection On p4 ���� Inj on p_5 0eplb of lNsctian 23!5p1 1V 43 43i6' Gram_d Bf2! 03d 10010 __2_834 --- 1003.40 _003_5_' 100340 _ _0034 100340 1000J0 Pounds PIN/nf _. _ 4_0 40 40 _ 40 Pounds Pro Ifir, 1 T25 _ 255 255 255 225 Pountls olsulfte/nl wSrAft 5 5 5 5 _ �5 Pounds_ fNulr entllnj _ 3 9 3 3 3 ProyianaR _ 100 _ _ 1W ._ _.. 100 _ .. 10_.. .. 100 _ Gallons Is 1111eMu1rlentrnl 100 100 100 _. IDO _. 100 Yeast,propionate. _ 4clutdow, _ Hull & Associates Inc. Page 14 P R B-C 'cancePmMs ,tteriala 143U Prral $285 $P,69500 i $725$231 $1575075 325N 326 $325 $]5625 IntStill _ 325 Nutnent $325 _ 51056.025 65W Praponak E395 9 $4534675 _ ..... _ __ $77.6T5 abor. Iaysol Prabe 4 $150000 _$600000 litragcn O54 E475000 sn0 l t Trailer al < $2 ]SOW $1100000 11 Iof ET to al lEis penis on e.c 4 $125000 $500000 abor , E24375 DD Sab Tall E101 Rt]5 T e 92-W'ams Pmwrt-IR ZVl 50188fi 11W Totals fi5220.66 1<300 1651 325 Poll Sum", _.. _ Nunder oroainls 1J ... Pounds Pro'mM-IR 1100 Po_u_n_ol2Wpt __. 127 Pndsl of Sulfile/Pt ou 25 _.. . PauMa ofNutoenUpt _.. 25 Pouts. of Prop onae ._—.... 500 Cost Hair Poll S].824]5 . PR9 C - I tlm6 _ Y Injection pi Inledian p3 Injection#3 rejection IX4 Inject on p5 Deoth of Inject on 2 -25 225 3255 3250 42-06 de Par once Pro mct lRbnl 220_ 220 220 220 220 _ Pountla of ul 5 5 5 5 _ 5 _ Os of utr Ve entfinl P N _ 5_ 5 5 5 5 _ Propionak - " 100 - 100 o0 100 1ga 100 100 100 1 D6 canons ors Imettn o-ien#m 100 _ ..) _.... _. _.. __. To[al E101 721]5 Y io P naR _ _ Hull & Associates Inc. Page 15 APPENDIX 3: TECHNOLOGY DISCUSSION The options available for a cost-effective and reliable technology to treat chlorinated hydrocarbon contaminants such as tetrachloroethene (PCE), trichloroethene (TCE), cis-1,2- dichlorethene (cis-1,2-DCE), and carbon tetrachloride in groundwater have in recent years moved away from traditional pump -and -treat processes, especially in cases where: • NAPL, micro -emulsions or high concentration adsorbed materials are present leading to high dissolved phase concentrations. • Access to groundwater is restricted by surface structures or uses. • Local restrictions forbid the implementation of other available technologies such as air sparging or natural attenuation. • Pump and Treat technologies have been applied, but have reached asymptotic removal rates. • Contamination is extensive and concentrations are too high for risk based closure but otherwise relatively low (typically 100-7500 ppb). • The migration of dissolved Chlorinated Aliphatic Compounds (CAHs) across property boundaries or into adjacent surface water presents a long-term remediation requirement. • The vertical migration of free phase CAHs (DNAPL) into underlying drinking water aquifers is a concern. The environmental chemistry of a site in part determines the rate of biodegradation of chlorinated solvents at that site. The initial metabolism of chlorinated solvents such as chloroethenes and chloroethanes in ground water usually involves a biochemical process described as sequential reductive dechlorination. The occurrence of different types and concentrations of electron donors such as native organic matter, and electron acceptors such as oxygen and chlorinated solvents, determines to a large degree the extent to which reductive dechlorination occurs during the natural attenuation of a site. To accelerate the natural processes, ZVI and enhanced microbial dechlorination processes are proposed to be utilized at the site. The utilization of coenzymes, oxygen scavengers and nutrients insures that little or no lag phase in the process is experienced and that the most efficient pathways may be utilized. Program Elements Nutrient: Critical to the sustained microbial activity and general microbial health is sufficient bio available nutrient. IET has incorporated nitrogen and o-POa into the remedial program such that organelle and ATP-ADP formation is not limited throughout the microbial respiratory process. Hull & Associates Inc. Page 16 Provect-IR: Provect-IR contains ZVI to uniquely elicit ISCR reactions, and it is composed of a hydrophilic, solid and complex carbon source hence it should generate little or no methane (< 5 mg/L). Provect-IR consists of various organic hydrogen donors, such as propionate, yeast extract and kelp meal that target the production of H2 levels that effectively stimulate the reductive dechlorination process. In addition Provect-IR also incorporates the oxygen scavenger sodium sulfite and the methane inhibitor red yeast rice, making it suitable to address multiple facets and areas of concern during the remedial process. A more extensive description of the purpose of each reagent is presented below. Oxygen Scavenger (sodium sulfite): Reductive dechlorination only occurs in the absence of oxygen; and, the chlorinated solvent actually substitutes for oxygen in the physiology of the microorganisms carrying out the process. As a result of the use of the chlorinated solvent during this physiological process it is at least in part dechlorinated. The site shall have introduced to the subsurface an oxygen scavenger to ensure that this process would occur immediately. Zero Valent Iron (ZVI): ZVI may chemically be thought of having been the product of the positively charged metal ions receiving electrons to become the electrically neutral pure metal. The term "reduction" is applied to any chemical reaction that added electrons to an element. Thus ZVI is a reduced material. In a similar manner, the chemical term "oxidation" refers to any chemical reaction that removes electrons from a material. For a material to be reduced, some other material must be oxidized. In the reduction of a chlorinated compound the zero valent iron is oxidized. Zero valent iron enhanced abiotic degradation of chlorinated volatile organic compounds (CVOCs) is essentially a reductive dechlorination process, which uses granular cast iron as the reducing agent, and produces final reaction products such as ethane, ethene, and chloride ions in the degradation of TCE. During this treatment process, the corrosion of iron by water dominates the chemical processes. The corrosion of iron by water results in ferrous ion generation, hydroxyl ion generation, and hydrogen gas generation. This results in a decrease in ORP (oxidation/reduction potential; that is, reducing conditions are produced) and an increase in pH. Accordingly, the end products of this reaction are ferrous iron, chloride ions, and the dehalogenated compound. Frequently remedial sites show insignificant or incomplete dechlorination, especially those with high aquifer sulfate levels. It is generally overlooked that the rapid conversion of sulfate to toxic free sulfide during bacterial reductive dechlorination plays a significant role in the "stalling" of the biotic stalling frequently observed. Accumulation of free sulfide is especially important in sites that display both high sulfate and low available iron. Reductive dechlorination inhibition by free sulfide has been observed in microcosms conducted for high sulfate field sites. Free sulfide toxicity to microorganisms can be prevented if ferrous iron precipitates the free sulfide. Further, iron sulfide mineral precipitates have been shown to catalyze reductive dechlorination of chlorinated solvents at rates comparable to metallic iron, on a surface area normalized basis. Microcosms performed at high sulfate sites have been showed to both remove free sulfide Hull & Associates Inc. Page 17 toxicity to dehalogenating bacteria and to enhance catalytic reductive dechlorination when ferrous iron is added. Further, ferrous iron, itself, may act as an electron donor. Injected, colloidal reactive iron is a promising technology, which may be applied, in a synergistic approach with compatible technologies. There are two primary reactions with CAHs that take place which will consume the iron and require stoichiometric consideration: the anaerobic iron corrosion reaction in which water is disassociated to form hydrogen gas; and • the direct adsorption of a chlorinated hydrocarbon onto the surface of the iron, followed by reductive dehalogenation. Recent research on elemental iron systems suggests that four mechanisms are at work during the reductive process: • First, the Fe' acts as a reductant by supplying electrons directly from the metal surface to an adsorbed halogenated compound. • Second, hydrogen gas is generated by the anaerobic corrosion of the metallic iron by water. • Third, metallic iron may act as a catalyst for the reaction of hydrogen with the halogenated hydrocarbon using the hydrogen produced on the surface of the iron metal as the result of anaerobic corrosion with water. Theoretically, these reactions are not kinetically effective without a catalyst; thus, it is thought that impurities in the iron or surface defects act as that catalyst. • Fourth, solubilized ferrous iron can also act as a reductant, albeit at a rate at least an order of magnitude slower. Hydrogen gas can be used for reductive dehalogenation by the following reaction: Hz + X-CI = X-H + H' + CI' Vitamins: Recent studies suggest that metal — containing coenzymes, found in certain types of anaerobic microorganisms, and can reductively dechlorinate one- and two -carbon solvents. Cobalt -containing corrinoid cofactors such as vitamin B12 mediate the reductive dechlorination of carbon tetrachloride and tetrachloroethene.in these biological systems the rate -limiting step to complete dechlorination to ethylene is the last stage conversion of vinyl chloride. The rate of that process has been found to be significantly enhanced by the presence of vitamin B12, which acts as an electron carrier. It is the core of B12, which contains cobalt, and the various oxidation states the cobalt obtains, which allows for the electron transfer intra-cellularly. The existence of the cobalt core has also been seen to catalyze the surface reaction of the iron lowering the necessary activation energy required for the electron transfer. Hull & Associates Inc. Page 18 Technology Summary: The application of these two synergist technologies: colloidal iron and microbial reductive dechlorination process may be further enhanced through microbial amendments and reducing agents. The proposed treatment technology presented herein applies these technologies. Critical to the success of the proposed remedial technologies is the successful delivery of the various materials to the targeted groundwater and soils. EXHIBIT A Provider's Proposal [See attached.] EXHIBIT B Contractor's Affidavit [See attached.] BOARD OF PUBLIC WORKS AGENDA ITEM REVIEW REQUEST FORM Date 8/16/2016 Department Community Name Chris Dressel Investment BPW Date 8/23/2016 Phone Extension 5847 L Required Prior to Submittal to Board Legal ® Attorney Name Michael Schmidt Controller ® Controller review is required for all Contracts $5,000.00 or more and greater than one year in length per the City Purchasing Policy Purchasing ❑ Check the Appropriate Item Type — Required for All Submissions ® Agreement ❑ Contract ❑ Proposal ❑ Addendum ® Professional Services ❑ Resolution ❑ Bid Opening ❑ Bid Award ❑ Req. to Advertise ❑ Title Sheet ❑ Quote Opening ❑ Quote Award ❑ Change Order No. ❑ C/O & PCA No. ❑ PCA ❑ Ease/Encroach. ❑ Traffic Control n Other: required information _ Company or Vendor Name Hull and Associates, Inc. New Vendor ❑ Yes ® No ❑ If Yes, Approved by Purchasing MBE/WBE Contractor ❑ MBE ❑ WBE MBE/WBE Contractor Requested ❑ No ❑ Yes Name of Company Groundwater Remedy and Quarterly Sampling Plan — Oliver Project Name Industrial Park Project Number Funding Source Account No. Amount Terms of Contract Purpose/Description Studebaker/Oliver Revitalization Grant Fund 209.1401,460.31.02 $ 491,160.00 8/2016 — 3/31 /2019 Groundwater Remedy and Quarterly Sampling Plan — Oliver Industrial Park ❑ Required Contractor's Certification Form Attached (Non - Collusion, Non -Discrimination, Non -Debarment, E-Verify, Iran, etc.) Required For Change Orders Only Amount of U Increase ❑ Decrease Previous Amount Current Percent of Change: N/A New Amount N/A Total Percent of Change: N/A Dispersal After Approval Copy Original ❑ ® DCI — Chris Dressel ❑ ® Hull and Associates ❑ ❑