AGENDA
ITEM
12 AGENDA STAFF REPORT
DATE:
TO:
APPROVED BY:
PREPARED BY:
SUBJECT:
January 19, 2022
Mayor and City Counci l
Miguel Figueroa, City Manager )AV
Lilliana Falomir, Public Works Manager Adm ini ~
Authorize City Manager to Sign Agreement of Professional Services with Geo-Logic Associates for Development and
Installation of Groundwater Monitoring Network for New River Improvement Project - Calexico Reach.
================================================================== Recommendation:
Authorize City Manager to Sign Agreement of Professional Services with Geo-Logic Associates for Development and Installation of Groundwater Monitoring Network for New River Improvement Project - Calexico Reach.
Background:
The City of Calexico is lead for implementing the New River Improvement Project Calexico Reach. The Project has been designed to address the health threat that New River water quality poses to the public in the Calexico area. It consists of the following three primary construction components:
1. Trash screen and diversion structure for the New River downstream from the International Boundary with Mexico.
2. Bypass encasement infrastructure for the New River from a point downstream of the International Boundary to a point downstream of the eastern boundary of the City of Calexico to address the public health threat that new River water quality poses to the southern area of the city.
3. A pump-back system to take treated wastewater from the existing Calexico Waste Water Treatment Plant (WWTP) and discharge it into the New River channel at a point near the proposed river diversion and encasement structure.
The State of California has allocated $28 million to the City to implement the project, and the City and the California Department of Water Resources has executed Agreement No. 4600014089 for the disbursement of the $28 million for the Project. The City is expecting to obtain all the necessary Project pre-construction permits and start construction in February 2022.
AGENDA
ITEM
~
Pursuant to discussions and negotiations to obtain its Clean Water Act Sections 401 and 404 permits from the with the California Regional Water Quality Control Board (R7) and US Army Corps of Engineers, the City needs to develop and install a groundwater monitoring network for the Project to determine groundwater levels and direction of flow in the New River floodplain pre- and post-Construction of the Project. Pursuant to this, on October 26, 2021, the City of Calexico issued a Request for Proposal (RFP) soliciting proposals from qualified consulting companies for hydrological services for the Project.
Discussion & Analysis:
On December 2, 2021 , the Office of the City Clerk received seven (7) proposals from the following companies:
• Aquaria Engineering, LLC
• Dudek
• GeoSystems Analysis, Inc.
• Geo-Logic Associates
• Hargis & Associates, Inc.
• Nicklaus Engineering, Inc.
• West & Associates Engineering, Inc.
The proposals were reviewed by an evaluation committee composed of New River Improvement Project Manager and Public Works Manager - Administrative. The consultants were evaluated on the basis of scope of work, experience, references, project schedule, in accordance with the protocols and criteria specified in its RFP. The committee ranked the proposals and found Geo-Logic Associates to be the highest. In addition, Geo-Logic Associates met all the technical criteria of the RFP and followed the City's proposed construction schedule. Based on the foregoing, City staff recommends that the City Council of the City of Calexico authorize the City Manager to sign Agreement for Professional Services between the City of Calexico and Geo-Logic Associates for professional hydrological services for New River Improvement Project - Calexico Reach.
The Funding Agreement between DWR and the City covers the cost for the proposed services.
Fiscal Impact:
Capital Improvement Program - Budgeted Item for FY2021-2022 State Grant
Total
Coordinated With:
City Manager's Office.
Public Works Department.
Office of the City Clerk.
$69,340.00
$69,340.00
Attachment(s):
1. Agreement of Professional Services between City of Calexico and Geo-Logic Associates for Hydrology Services for New River Improvement Project - Calexico Reach.
2. Request for Proposals for Hydrology Services for New River Improvement Project - Calexico Reach.
ATTACHMENT #1
AGREEMENT FOR PROFESSIONAL SERVICES
This Agreement is made and entered into as of the 15111 day of December, 2021, by and between the City of Calexico ("City") and Geo-Logic Associates ("Consultant").
RECITALS
A. Consultant is specially trained, experienced and competent to perform the construction management services which will be required by this Agreement; and B. Consultant possesses the skill, experience, ability, background, staff, ce1tification and knowledge to provide the services described in this Agreement on the te1ms and conditions described herein.
AGREEMENT
1. Scope of Services. The Consultant shall furnish the following services in a professional manner. Consultant shall perform the services described on Exhibit A which is attached hereto and incorporated herein by reference. Consultant shall provide said services at the time, place, and in the manner specified in Exhibit A, subject to the direction of the City through its staff that it may provide from time to time.
2. Time of Performance. The services of Consultant are to commence upon execution of this Agreement and shall continue until all authorized work is approved by the City. All such work shall be completed no later than May 1, 2022. Time is of the essence for every provision of this agreement that states a time for perfmmance and for every deadline imposed by the City.
3. Compensation. Compensation to be paid to Consultant shall be as set foith in Exhibit B, which is attached hereto and incorporated herein by reference. Payment by City under this Agreement shall not be deemed a waiver of defects, even if such defects were known to the City at the time of payment.
4. Method of Payment. Consultant shall submit monthly billings to City describing the work performed during the preceding month. Consultant's bills shall include a brief description of the services perfmmed, the date the services were perfo1med, the number of hours spent and by whom, and a description of any reimbursable expenditures. City shall pay Consultant no later than 30 days after approval of the monthly invoice by City staff.
5. Ownership of Documents. All plans, studies, documents and other writings prepared by and for Consultant, its officers, employees and agents and subcontractors in the course of implementing this Agreement, except working notes and internal documents, shall become the prope1ty of the City upon payment to Consultant for such work, and the City shall have the sole right to use such materials in its discretion without fu1ther compensation to Consultant or to any other paity. Consultant shall, at Consultant's expense, provide such rep01ts, plans, studies, documents and other writings to City upon written request.
6 Independent Contractor. It is understood that Consultant, in the performance of the work and services agreed to be perf01med, shall act as and be an independent contractor and shall not act as an agent or employee of the City. Consultant shall obtain no rights to retirement benefits or other benefits which accrue to City's employees, and Consultant hereby expressly waives any claim it may have to any such rights.
7. Interest of Consultant. Consultant (including principals, associates, and professional employees) covenants and represents that it does not now have any investment or interest in real property and shall not acquire any interest, direct or indirect, in the area covered by and during this Agreement or any other source of income, interest in real prope1ty or investment which would be affected in any manner or degree by the performance of Consultant's services hereunder. Consultant fmther covenants and represents that in the perfo1mance of its duties hereunder no person having any such interest shall perf01m any services under this Agreement.
Consultant is not a designated employee within the meaning of the Political Reform Act because Consultant:
a. will conduct research and arrive at conclusions with respect to his/her rendition of inf01mation, advice, recommendation or counsel independent of the control and direction of the City or of any City official, other than n01mal agreement monitoring; and
b. possesses no authority with respect to any City decision beyond rendition of information, advice, recommendation or counsel. (FPPC Reg. 18700( a)(2).)
8. Professional Ability of Consultant. City has relied upon the professional training and ability of Consultant to perform the services hereunder as a material inducement to enter into this Agreement. Consultant shall therefore provide properly skilled professional and technical personnel to perf01m all services under this Agreement. All work perf01med by Consultant under this Agreement shall be in accordance with applicable legal requirements and shall meet the standard of quality ordinarily to be expected of competent professionals in Consultant's field of expe1tise.
9. Indemnity. Consultant agrees to indemnify, including the cost to defend, the City, and its officers, agents and employees from any and all claims, demands, costs or liability that arise out of, or pe1tain to, or relate to the negligence, recklessness, or willful misconduct of Consultant and its agents in the performance of services under this contract. This indemnity does not apply to liability for damages for death or bodily injury to persons, injury to prope1ty, or other loss, damage or expense arising from the sole negligence, willful misconduct or defects in design by the City or its agents, servants, or independent contractors who ai·e directly responsible to the City, or the active negligence of the City.
To the fullest extent permitted by law, the Consultant shall (1) immediately defend and (2) indemnify the City, and its councilmembers, officers, agents, and employees from and against all liabilities regardless of nature or type that arise out of, pe1tain to, or relate to the negligence, recklessness, or willful misconduct of the Consultant, or its employees, agents, or subcontractors. Liabilities subject to the duties to defend and indemnify include, without limitation, all claims, losses, damages, penalties, fines, and judgments; associated investigation and administrative expenses; defense costs, including but not limited to reasonable attorneys' fees; court costs; and costs of alternative dispute resolution. The Consultant's obligation to indemnify applies unless it is finally adjudicated that the liability was caused by the sole active negligence or sole willful misconduct of an indemnified paiiy. If it is finally adjudicated that liability is caused by the compmative active negligence or willful misconduct of an indemnified party, then Consultant's indemnification obligation shall be reduced in propo1tion to the established comparative liability.
(b) The duty to defend is a sepmate and distinct obligation from Consultant's duty to indemnify. Consultant shall be obligated to defend, in all legal, equitable, administrative, or special proceedings, with counsel approved by the City, the City and its councilmembers, officers, agents, and employees, immediately upon tender to Consultant of the claim in any form or at any stage of an action or proceeding, whether or not liability is established. An allegation or dete1mination that persons other than Consultant are responsible for the claim does not relieve Consultant from its sepai·ate and distinct obligation to defend under this section. The obligation to defend extends through final judgment, including exhaustion of any appeals. The defense obligation includes an obligation to provide independent defense counsel if Consultant asse1is that liability is caused in whole or in part by the negligence or willful misconduct of the indemnified paiiy. If it is finally adjudicated that liability was caused by the comparative active negligence or willful misconduct of an indemnified paity, Consultant may submit a claim to the City for reimbursement of reasonable attorneys' fees and defense costs in proportion to the established compmative liability of the indemnified party. (c) The review, acceptance or approval of the City's work or work product by any indemnified pmiy shall not affect, relieve or reduce the City's indemnification or defense obligations. This Section survives completion of the services or the te1mination of this contract. The provisions of this Section are not limited by and do not affect the provisions of this contract relating to insurance.
10. Insurance Requirements.
a. Consultant, at Consultant's own cost and expense, shall procure and maintain, for the duration of the contract, the following insurance policies.
L Workers' Compensation Coverage. Consultant shall maintain Workers' Compensation Insurance and Employer's Liability Insurance for his/her employees in accordance with the laws of the State of California. In addition, Consultant shall require each subcontractor to similarly maintain Workers' Compensation Insurance and Employer's Liability Insurance in accordance with the laws of the State of California for all of the subcontractor's employees. Any notice of cancellation or non-renewal of all Workers' Compensation policies must be received by the City at least thirty (30) days prior to such change. The insurer shall agree to waive all rights of subrogation against City, its officers, agents, employees and volunteers for losses arising from work performed by Consultant for City. This provision shall not apply if Consultant has no employees performing work under this Agreement. If the Consultant has no employees for the purposes of this Agreement, Consultant shall sign the "Ce1iificate of Exemption from Workers' Compensation Insurance" which is attached hereto as Exhibit C.
1. General Liability Coverage. Consultant shall maintain conunercial general liability insurance in an amount not less than one million dollars ($1 ,000,000) per occmTence for bodily injury, personal injury and prope1iy damage. If a conunercial general liability insurance fo1m or other form with a general aggregate limit is used, either the general aggregate limit shall apply separately to the work to be perf01med under this Agreement or the general aggregate limit shall be at least twice the required occmTence limit.
111. Automobile Liability Coverage. Consultant shall maintain automobile liability insurance covering bodily injury and prope1iy damage for all activities of the Consultant arising out of or in connection with the work to be performed under this Agreement, including coverage for owned, hired and non-owned vehicles, in an amount of not less than one million dollars ($1,000,000) combined single limit for each occunence.
iv. Enors and Omissions Liability. Consultant shall maintain errors and omissions liability insurance for all work performed under this Agreement in an amount of not less than one million dollars ($1,000,000).
b. Policy Endorsements. Each general liability and automobile liability insurance policy shall be with insurers possessing a Best's rating of no less than A:VII and shall be endorsed with the following specific language:
L The City of Calexico, its elected or appointed officers, officials, employees, agents and volunteers are to be covered as additional insureds with respect to liability arising out of work performed by or on behalf of the Consultant, including materials, paiis or equipment furnished in connection with such work or operations.
11. This policy shall be considered primary insurance as respects the City, its elected or appointed officers, officials, employees, agents and volunteers.
Any insurance maintained by the City, including any self-insured retention the City may have, shall be considered excess insurance only and shall not contribute with it.
111. This insurance shall act for each insured and additional insured as though a separate policy had been written for each, except with respect to the limits of liability of the insuring company.
iv. Any failure to comply with repmi ing provisions of the policies shall not affect coverage provided to the City, its elected or appointed officers, officials, employees, agents or volunteers.
v. The insurance provided by this policy shall not be suspended, voided, canceled, or reduced in coverage or in limits except after thi1iy (30) days written notice has been received by the City.
c. Deductibles and Self-Insured Retentions. Any deductibles or self-insured retentions must be declared to and approved by the City. At the City's option, Consultant shall demonstrate financial capability for payment of such deductibles or self-insured retentions.
d. Ce1iificates of Insurance and Endorsements. Consultant shall provide ce1iificates of insurance with original endorsements to City as evidence of the insurance coverage required herein. Ce1iificates of such insurance shall be filed with the City on or before commencement of performance of this Agreement. CmTent certification of insurance shall be kept on file with the City at all times during the te1m of this Agreement.
11. Compliance with Laws. Consultant shall use the standard of care in its profession to comply with all applicable federal, state and local laws, codes, ordinances and regulations.
12. Licenses. Consultant represents and warrants to City that it has all licenses, pe1mits, qualifications, insurance and approvals of whatsoever nature which are legally required of Consultant to practice its profession. Consultant represents and warrants to City that Consultant shall, at its sole cost and expense, keep in effect or obtain at all times during the term of this Agreement, any licenses, permits, insurance and approvals which are legally required of Consultant to practice its profession. Consultant shall obtain a City of Calexico Business License.
13. Controlling Law Venue. This Agreement and all matters relating to it shall be governed by the laws of the State of California and any action brought relating to this Agreement shall be held exclusively in a state court in the County oflmperial, California.
14. Written Notification. Any notice, demand, request, consent, approval or communication that either paiiy desires or is required to give to the other paiiy shall be in writing and either served personally or sent prepaid, first class mail. Any such notice, demand, etc. shall be addressed to the other paiiy at the address set fo1ih herein below. Either paiiy may change its address by notifying the other paiiy of the change of address. Notice shall be deemed communicated within 48 hours from the time of mailing if mailed as provided in this section.
If to City:
If to Consultant:
City of Calexico, City Manager
608 Heber Ave.
Calexico, CA 9223 1
Geo-Logic Associates
3150 Bristol Street, Suite 210
Costa Mesa, California 92626
15. Consultant's Books and Records.
a. Consultant shall maintain any and all ledgers, books of account, invoices, vouchers, canceled checks, and other records or documents evidencing or relating to charges for services, or expenditures and disbursements charged to City for a minimum period of three (3) years, or for any longer period required by law, from the date of final payment to Consultant to this Agreement. b. Consultant shall maintain all documents and records which demonstrate performance under this Agreement for a minimum period of three (3) years, or for any longer period required by law, from the date of termination or completion of this Agreement.
c. Any records or documents required to be maintained pursuant to this Agreement shall be made available for inspection or audit, at any time during regular business hours, upon written request by the City Manager, City Attorney, City Auditor or a designated representative of these officers. Copies of such documents shall be provided to the City for inspection at City Hall when it is practical to do so.
Otherwise, unless an alternative is mutually agreed upon, the records shall be available at Consultant's address indicated for receipt of notices in this Agreement.
d. Where City has reason to believe that such records or documents may be lost or discarded due to dissolution, disbandment or te1mination of Consultant's business, City may, by written request by any of the above-named officers, require that custody of the records be given to the City and that the records and documents be maintained in City Hall. Access to such records and documents shall be granted to any paiiy authorized by Consultant, Consultant's representatives, or Consultant's successor-in-interest.
16. Entire Agreement. This Agreement constitutes the complete and exclusive statement of Agreement between the City and Consultant. All prior written and oral communications, including correspondence, drafts, memoranda, and representations, are superseded in total by this Agreement.
17. Amendments. This Agreement may be modified or amended only by a written document executed by both Consultant and City and approved as to form by the City Attorney.
18. Waiver. No failure on the part of either party to exercise any right or remedy hereunder shall operate as a waiver of any other right or remedy that party may have hereunder.
19. Execution. This Agreement may be executed in several counterpaits, each of which shall constitute one and the same instrument and shall become binding upon the paities when at least one copy hereof shall have been signed by both paities hereto. In approving this Agreement, it shall not be necessary to produce or account for more than one such counterpart.
20. Assignment and Subcontracting. The parties recognize that a substantial inducement to City for entering into this Agreement is the professional reputation, experience and competence of Consultant. Assignments of any or all rights, duties or obligations of the Consultant under this Agreement will be permitted only with the express consent of the City. Consultant shall not subcontract any portion of the work to be performed under this Agreement without the written authorization of the City. If City consents to such subcontract, Consultant shall be fully responsible to City for all acts or omissions of the subcontractor. Nothing in this Agreement shall create any contractual relationship between City and subcontractor nor shall it create any obligation on the pait of the City to pay or to see to the payment of any monies due to any such subcontractor other than as otherwise is required by law.
21 . Te1mination. This Agreement may be terminated by the City immediately for cause or by either paity without cause upon fifteen days' written notice of termination. Upon te1mination, Consultant shall be entitled to compensation for services performed up to the effective date of termination.
***SIGNATURES ON FOLLOWING PAGE** *
IN WITNESS WHEREOF, the paiiies have caused this Agreement to be executed on the date first written above.
CITY OF CALEXICO:
Miguel Figueroa
City Manager
APPROVED AS TO FORM:
Carlos Campos
City Attorney
CONSULT ANT:
J an1es A. Kelsey, P. G
President Geo-Logic Associates
ATTEST:
Gabriela Gai·cia
City Clerk
EXHIBIT A
SCOPE OF SERVICES
(Geo-Logic Associates proposal dated December 2, 2021)
PROPOSAL
November 29, 2021
Jose L. Angel, P.E.
City Project Manager
Public Works Department
549 Pierce Avenue
Calexico, CA 92231
Re: City of Ca lexico Request for Proposals, Hydrology Services for New River Improvement Project - Calexico Reach
Dear Mr. Angel and Members of the Selection Committee:
Geo-Logic Associates (GLA) is looking forward to working with the City of Ca lexico (City) to complete a hydrogeologic study of the potential impacts that the planned river bypass may have on the groundwater and riparian conditions near the New River Calexico Reach. We understand one of the primary objectives is to obtain data to further support a conceptual water balance developed to show the river is gaining in this reach (recharged by groundwater) and the area wetlands are not dependent on river flow. GLA has successfully completed numerous similar projects evaluating and quantifying groundwater flow in riparian environments with state and federal regulatory oversight.
One of the first steps is understanding groundwater occurrence and flow direction with the installation and monitoring of a basic three-well groundwater monitoring network. As discussed with you, this is the first phase proposed for this project and other phases may follow as needed.
GLA routinely works collaboratively with clients and regulators to implement similar projects and has been performing groundwater monitoring and reporting in Imperial County for over 20 years, including monitoring of the New River at several locations. Our firm is well positioned to assist the City and offers a project management team of Professional Geologists, Hannah Erbele, PG, and John Dodge, PG, CHG, who have extensive experience with high-quality and cost-efficient hydrogeologic investigations.
We sincerely appreciate the opportunity to present our team, qualifications, and approach to the City. To further discuss the benefits of selecting GLA for this project, please contact our Project Manager, Hannah Erbele, PG, at (657) 218-4708 or [email protected] or Principal, Mr. John Dodge, PG, CHG, at (657) 218-4708 or [email protected].
GEO-LOGIC ASSOCIATES, INC.
~7 President
3150 Bristol Street
Suite 210
Costa Mesa, CA 92626-7300
Phone: (657) 218-4708
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Statement of Qualifications
OVERVIEW
Geo-Logic Associates (GLA) is an employee-owned, multi-disciplinary civil, environmental, geologic, and geotechnical consulting firm established in 1991. Our firm includes more than 260 professionals in 29 offices nationwide including 4 offices located in southern California. In 2021, GLA was ranked among the Engineering News-Record (ENR) Top 500 Design Firms and Top 200 Environmental Firms nationwide, and among the Top Design firms in California.
Staffing
GLA's employee policy is focused on retaining high-performing employees. As a result, we have a low turnover rate of 13.14% and a higher-than-average percentage of long-term employees. GLA employs an interdisciplinary professional staff that includes hydrologists, hydrogeologists, geologists, engineers, biologists, field technicians and computer-aided design (CAD) and geographic information system (GIS) specialists, including staff from several wholly owned subsidiaries (Clear Creek Associates [CCAJ, Daniel B. Stephens & Associates, Inc. [DBS&AJ, Kunkel Engineering Group, and the MINES Group). Our project team will be staffed primarily by team members from our San Diego and Costa Mesa offices; the team includes professionals from GLA and our subsidiary, DBS&A. GLA has a team of more than 50 field geologists and water quality sampling technicians who possess the experience, local presence, and capabilities to undertake this project.
GLA and its wholly owned subsidiaries adhere to the same internal processes and procedures and work together seamlessly. We contract and track our time as GLA under one invoice. This gives the City all of the resources and complementary expertise of our entire family of companies under a single contract.
Range of Services
We have extensive water resources and environmental consulting experience and provide a full range of hydrologic/hydrogeologic consulting services including:
• Hydrogeologic investigations • Custom solutions for data management and mapping • Groundwater sampling, monitoring, and reporting • Civil and geotechnical engineering • Numerical groundwater modeling • Operations and construction support • Studies of contaminant transport in soil and groundwater • Water rights and expert services • Permitting and regulatory compliance
• Remediation of soil and groundwater
Providing hydrology and hydrogeology services to support management decisions for infrastructure improvements www.geo-logic.com -
PROPOSAL
CITY OF CALEXICO- HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH
FIRM'S EXPERIENCE WITH SIMILAR HYDROLOGIC INVESTIGATIONS GLA and our affiliates have extensive experience performing similar hydrologic/hydrogeologic investigations including design and installation of groundwater monitoring networks for municipalities and private-sector clients throughout California, including Imperial County Department of Public Works (ICDPW).
Big Canyon Watershed Hydrogeologic Characterization and Water Balance Development I City of Newport Beach, California
Services performed: GLA's wholly owned subsidiary, DBS&A, assisted the City of Newport Beach with a hydrogeologic characteri zation of the upper Big Canyon Watershed to evaluate groundwater occurrence, flow direction, and groundwater quality. Big Ca nyon was deeply incised by stream erosion into Quaternary aged marine terrace formations near the northern terminus of the San Joaquin Hills. Erosion exposed Tertiary aged marine deposits in the area including the marine Monterey formation. The Monterey formation has been recognized as the naturally occurring source of selenium metal rel eased to the hydrogeologic and aquatic environment in several California watersheds, including Big Canyon. The Big Canyon area was largely undeveloped until the 1970s when a water supply reservoir and adjacent tracts of houses were constructed.
DBS&A completed a hydrogeologic characterization and water balance to help the City further understand the relationship between selenium detected in the area, the underlying Monterey siltstone, shallow groundwater, and residential irrigation. Over-irrigation activities from residential areas were suspected of contributing to groundwater mounding in the shallow aquifer and subsequent selenium flux from the underlying Monterey formation. DBS&A installed several wells (direct-push pre-pack and conventional wells), developed a flow map, sampled groundwater for isotopes and major ions, and constructed a detailed water balance with a focus on the upper watershed in the vicinity of the reservoir and adjacent neighborhoods to characterize the potential impact of suspected over-irrigation and reservoir design discharge on shallow groundwater mounding and selenium flux in the watershed.
DBS&A installed a set of seven piezometers to supplement the existing piezometer network near the reservoir. Stable isotopes of oxygen and hydrogen (delO/delD) were utilized to evaluate groundwater recharge from various sources. DBS&A also installed a surface water staff gauge to compare surface water elevation to groundwater elevation in nearby streams. DBS&A collected continuous flow rate data from storm water lines in the area to assess surface water discharge related to irrigation rate and frequency. DBS&A also conducted soil, groundwater, and surface water sampling and analysis to evaluate selenium impacts. A greater understanding of the sources, occurrence, and mechanisms of selenium flux enabled the City to ultimately design remedial measures for selenium impacts in the watershed.
Reference: Robert Stein, Assistant City Engineer, City of Newport Beach, [email protected], (949) 644-3322 Dates of the project: 2012 - 2016 Staff Involved: John Dodge Critical deadlines and budget constraints: DBS&A prepared the site characterization and water balance report on time and within budget.
Unique features: Conceptual hydrogeologic model development in complex watershed environment; develoJJment of a groundwater monitoring well network to evaluate groundwater occurrence and flow direction adjacent to flowing stream through the use of wells, piezometers, staff gauge installation and measurement, stable isotope and major ion analyses.
Latest technologies for groundwater monitoring: A combination of standard 2-inch polyvinyl chloride (PVC) groundwater monitoring wells and Geoprobe0 pre-packed screen groundwater monitoring piezometers were installed by auger rig and sampled at this site.
Down hole pressure transducers and data loggers were installed with a stream staff gauge to collect water level data over several months of continuous operation.
Groundwater Monitoring Well Network Installation, Groundwater Flow Mapping, and Comprehensive Hydrogeologic Assessment I Henderson, Nevada Services performed: GLA's wholly owned subsidiary, DBS&A provides hydrogeologic consulting services during assessment, remediation, risk assessment, and redevelopment of a complex industrial property (over 2,200 acres) impacted by multiple waste streams from war-time manufacturing plants and related operating facilities in Henderson, Nevada. The Landwell Restoration Project, described in detail at https://brcrestorationproject.com, is one of the largest and most technically complex multi-party investigation/remediation/redevelopment projects in the western U.S. DBS&A completed a baseline groundwater assessment with groundwater contour maps that included water level and contaminant data selected from over 400 wells with 474 parameters per well.
Continued ...
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PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH Groundwater Monitoring Well Network Installation, Groundwater Flow Mapping, and Comprehensive Hydrogeologic Assessment continued ...
Among other tasks, DBS&A also utilized tritium (3H) and stable isotopes of oxygen (delO) and hydrogen (delD) to illustrate that magnesium, lithium, other dissolved metals, and total dissolved solids (TDS) in groundwater approximately 500 feet below grade are naturally occurring, related to historical playa evaporation, and separate from surface magnesium ore processing and production plant. Deep groundwater proved to be isolated from residual atmospheric tritium released decades earlier largely during nuclear device testing at the nearby Nevada Test Site. Tritium data demonstrated that, conversely, shallow groundwater had been exposed to the historic radionuclide release at some point in the modern-day hydrologic cycle but shallow tritiated groundwater had not recharged with industrial contaminants to the deep zone.
Compared to shallow groundwater, deep groundwater was also characterized by relatively heavier oxygen and hydrogen isotopes due to historical playa evaporation before Tertiary regional basin sedimentation and in-filling. The demonstration that deep groundwater quality is naturally occurring and isolated from surficial site use and impacts allowed our client to more appropriately focus financial resources and assessment and remedial strategies in the shallow water-bearing zone. A part of the evaluation, DBS&A also developed groundwater flow maps and mass flux estimates for the shallow water bearing zone that is discharging into a downgradient riparian area and Las Vegas Wash.
Reference: Dr. Ranajit (Ron) Sahu, Project Manager, Basic Remediation Company, [email protected], (702) 683-5466 Dates of the project: 2004 to present Staff Involved: John Dodge, Hannah Erbe le Critical deadlines and budget constraints: Our team is consistently on-time of ahead of schedule and on or under budget for BRC.
Unique features: Regional hydrogeologic assessment and groundwater flow mapping with nearly 400 wells. Over 450 analytical parameters sampled per well during initial groundwater characterization. Impacted groundwater is related to several adjacent industrial complexes. Property is being developed into a residential community with homes, schools, sports fields, and commercial businesses.
latest technologies for groundwater monitoring: Groundwater occurrence and flow direction is characterized with conventional monitoring wells installed up to 500 feet below grade. Hydraulic extraction and containment wells also operate in the region and influence groundwater flow. A seep assessment also characterized historical shallow groundwater occurrence. Groundwater monitoring wells were installed with both auger and sonic drilling technology. Part of the initial groundwater work involved evaluation of a candidate discrete-zone sampler technology. Groundwater quality was characterized with a comprehensive analytical chemistry assessment using over 450 analytes including groundwater major ions and isotopes. The scope and cost of a candidate geochemical tracer test using a variety of tracers was also fully vetted for potential evaluation of groundwater flow paths. A numerical groundwater flow and transport model was developed to predict groundwater occurrence and flow direction under several scenarios.
Hydrogeologic Consulting for Groundwater Corrective Action Plan I City of Watsonville, California Services performed: GLA's wholly owned subsidiary, DBS&A, prepared a Groundwater Corrective Action Plan (CAP) for the City of Watsonville, California, under Regional Water Board review and approval. The CAP summarizes numerous prior efforts to characterize groundwater occurrence and flow direction and address groundwater quality impacts. The project area is located southeast of a former dry cleaning facility near residential properties and commercial businesses. The former dry cleaner operated from 1970 to 2014 and discharged wastewater containing tetrachloroethene (PCE) to the City sewer during its operations. PCE from the dry cleaner impacted soil, soil vapor, and groundwater.
DBS&A sampled and analyzed data results from several rounds of sampling in area groundwater monitoring wells. Additional data from soil vapor probes, subslab vapor probes, crawlspace vapor samples, and indoor air and ambient air samples was also part of the groundwater impact evaluation. Groundwater flow maps were developed to characterize a groundwater divide in the area.
DBS&A evaluated potential commercial and residential human health impacts due to groundwater impacts and resulting indoor air vapor intrusion. DBS&A will implement in-situ chemical reduction (ISCR) and bioaugmentation technologies for groundwater remediation involving numerous groundwater injection points.
Reference: Christian Di Renzo, Interim Director of Public Works and Utilities, City of Watsonville, [email protected], (831) 768-3176
Dates of the project: 2020 to Ongoing I Staff Involved: John Dodge, Hannah Erbe le Critical deadlines and budget constraints: DBS&A promptly began community outreach upon the approval of the City of Watsonville.
DBS&A prepared a comprehensive CAP ahead of regulatory deadlines and within budget.
Continued ...
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PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Hydrogeo/ogic Consulting for Corrective Action Plan I City of Watsonville, California continued ...
Unique features: Direct-push injection points into groundwater for reagent delivery and groundwater remediation. Piezometers (3/4 inch) and wells (2 inch) were installed for groundwater evaluation. Groundwater divide with flow oriented in three primary directions.
Shallow groundwater occurrence driving indoor air quality impacts.
DBS&A conducted public outreach events, including sending notifications through the mail and door-to-door visits, to request access to residential properties for environmental sampling.
Latest technologies for groundwater monitoring: Passive no-purge HydraSleeve"·' groundwater samplers and low-flow sampling techniques were installed at this site for groundwater sampling. Groundwater measurements are collected using electric water level meter sounders to determine groundwater occurrence and flow direction. Both piezometers (3/4 inch diameter PVC) and monitoring wells (2-inch and 4-inch) have been installed at the Site.
Hydrologic Monitoring and Reporting for Private University I Los Angeles County, California Services performed: DBS&A, a wholly-owned subsidiary of GLA, has performed groundwater monitoring at a private university campus for nearly 20 years. We provide hydrogeologic consulting services to address complex and interrelated water management issues, helping the University to identify, understand, and prioritize issues in three categories: risk management (preventing geotechnical instability), regulatory (related to groundwater levels, water quality, and other potential impacts to the environment), and operational (irrigation efficiency and storage reservoir management). Our staff conducts monthly monitoring of surface and groundwater quality, water levels, soil moisture content, and sub-drain flow to ensure that water use on the facility is not impacting historic flow regimes or water quality conditions.
Our staff use an infiltration model to track irrigation, evapotranspiration, surface runoff, soil storage, deep percolation, and groundwater recharge resulting from precipitation and irrigation. Groundwater monitoring and reporting is conducted in conjunction with Water Recycling Requirements (WRR) and National Pollutant Discharge Elimination System (NPDES) surface discharge permitting.
Annual reports are submitted to the Los Angeles Regional Water Quality Control Board (RWQCB) and the Los Angeles County Department of Public Works.
Reference: [Confidential client]
Dates of the project: 2002 - Ongoing I Staff Involved: John Dodge, Hannah Erbele Critical deadlines and budget constraints: Our team has consistently met annual and semi-annual report submittal deadlines and remained within budget. We promptly respond to our client's non-routine requests for large and small tasks.
Unique features: Thirty-year dataset of monthly groundwater level measurements in 36 wells from two water-bearing zones in steep topography and complex coastal Transverse Range hydrogeologic environment. Thirty-year companion dataset of neutron probe sensor readings to evaluate soil moisture above the water table. Annual water balance development and infiltration/groundwater recharge modeling since 1989. Unique reclaimed water irrigation system re-using millions of gallons of potable water per year.
Latest technologies for groundwater monitoring: We employ all available technologies for routine and specialized groundwater monitoring at the University, including 2-inch and 8-inch shallow and deep monitoring wells installed in alluvium and bedrock by auger and/or air rotary drilling rig; downhole pressure transducers/data loggers; seep and fracture flow observation and measurement; water balance development and infiltration/groundwater recharge modeling; and standard water level measurement with electronic meters. Above the water table, near-surface soil moisture monitoring is conducted with a portable neutron probe sensor.
Groundwater Monitoring and Reporting for 10 Solid Waste Sites I Imperial County, California landfills resulting in cost savings.
Services performed: GLA has managed the water quality monitoring and reporting programs for landfills in Imperial County for over 20 years. Our scope of work includes installation, repair, and abandonment of wells; semi-annual sampling of monitoring wells; laboratory analyses; statistical analysis of the data generated; preparation of routine monitoring reports; and preparation of required responses to any indications of site release. We recently worked with the Regional Water Board to reduce monitoring and reporting for several of the County's Reference: John Gay, Director of Public Works, [email protected], (760) 482-4462; Jose Castaneda, Project Manager, [email protected], (442) 26S-1818
Date of the project: 1992 - Ongoing I Staff Involved: Kyle Welchans, James Yelverton Continued ...
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PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Groundwater Monitoring and Reporting for 10 Solid Waste Sites I Imperial County, California continued ...
Critical deadlines and budget constraints: Consistently met report submittal deadlines and remained within budget estimates.
Unique features: Our wells are positioned adjacent to the New River; many have root intrusion. We created a tool to cut roots out of the wells to accommodate the bailers for sampling.
Latest technologies for groundwater monitoring: Although we are proficient at low-flow micro purging, use of Hydra Sleeves™, and WestBay sampling, the County does not have budget for pumps; therefore, sampling is conducted using traditional purge methods using hand bailers and for deeper wells, "Quickie-bailers:' "By all accounts, the ... members are happy with the [TDS Trend] study and have been distributing it to their stakeholders. On behalf of both SCSC and NWRI, I'd like to thank you for all the work Hannah did ... you navigated the management challenges with grace and we appreciate your professionalism and attention to detail."
~ Suzanne Sharkey, National Water Research Institute
SPECIFIC STAFF CREDENTIALS
Our proposed team has been carefully selected to meet the City's particular project needs based on the specific staff credentials shown below. Our team is described in more detail in the Proposed Staffing Plan section and their qualifications are included in individual resumes starting on page 14.
John Dodge, PG, CHG I Principal Hydrogeologist
Education: MS, Geology, University of Georgia, 1991; BS, Geology, University of Delaware, 1986 Professional registrations and special training: Professional Geologist, California, No. 6495; Certified Hydrogeologist, California, No. 1090; Licensed Geologist, Washington, No. 1097 Years of relevant experience: 31 years
• Principal Hydrogeologist, Groundwater Monitoring Well Network Installation, Groundwater Flow Mapping and Comprehensive Hydrogeologic Assessment, Basic Remediation Company (BRC) Henderson, Nevada
• Principal Hydrogeologist, Hydrogeologic Characterization and Quantitative Water Balance Development for Nitrate-Selenium Evaluation, Newport Bay and Big Canyon Watersheds, City of Newport Beach, California
• Principal Hydrogeologist, Hydrogeologic Investigation, City of Watsonville, California Hannah Erbele, PG I Project Manager
Education: BS, Earth and Environmental Science, University of California, Irvine, 2010 Professional registrations and special training: Professional Geologist, California, No. 9961; OSHA 40-Hour HAZWOPER Training
Years of relevant experience: 10 years
• Geologist, Watershed Management and Hydrologic Monitoring Program, Private University, Los Angeles County, California
• Geologist, Hydrogeologic Investigation, Private Residence, Newport Beach, California • Geologist, Hydrogeologic Investigation, City of Watsonville, California • Geologist, Drilling and Well Construction Oversight, Leavens Ranches, LLC, Ventura, California www.geo-logic.com -
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Kyle Welchans, PG, QISP I Field Quality Control
Education: BS, Geology, San Diego State University, 2007 Professional registrations and special training: Professional Geologist, California, No. 92SS; Qualified Industrial Stormwater Practitioner (QISP); OSHA 40-Hour HAZWOPER Training Years of relevant experience: 14 years
Project Manager, Semiannual Groundwater Monitoring and Reporting and Well Construction at Allied Imperial Landfill, within the Colorado River RWQCB, Imperial County, California Project Manager, Semi-annual Groundwater Monitoring and Reporting, Salton City Solid Waste Site, Imperial County, California
Geologist, Hydrogeologic Investigations and Groundwater Monitoring Well Borings and Drilling, East Otay Mesa Landfill Siting Study, San Diego County, California Geologist, Replacement Water Supply Well Drilling and Install for Border Patrol Facility, Tecate Border Crossing, San Diego County, California
Heather Hackstedde, GIT I Field Scientist
Education: BS, Earth and Space Exploration (Geoscience), Arizona State University, 2016 Professional registrations and special training: Geologist in Training, California, No. 170415; OSHA 40-Hour HAZWOPER Training
Years of and relevant experience: 5 years
• Project Geologist, Vista Ladera Estates Routine Monitoring Reports, Acton, California • Project Geologist, Routine monitoring and semi-annual reporting, Acton Homeowners Association, Acton, California
• Project Geologist, Hydrogeologic Investigation, Private Residence, Newport Beach, California James Yelverton, GIT I Field Scientist
Education: MS, Geology, University of Alabama, 2019; BS, Geology, University of Alabama, 2015 Professional registrations and special training: Geologist-in-Training. California, National Association of State Boards of Geology; OSHA 40-Hour HAZWOPERTraining
Years of and relevant experience: 3 years
• Staff Geologist, Semiannual Groundwater Quality Monitoring Reporting, Imperial County Landfills, Imperial County Public Works, Imperial County, California • Staff Geologist and Field Data Collection for Groundwater Quality Reporting, Salton City Landfill, Burrtec, Salton City, California
• Staff Geologist, Semiannual Groundwater Quality Monitoring Reporting, San Diego Landfill System, Republic Services, San Diego County, California
[GLA] ''. .. field tech quality is a good indicator of overall firm competence. Please pass my compliment on." - David Schwartzbart, CHG, Engineering Geologist, California Central Coast Regional Water Quality Control Board www.geo-logic.com ..
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Proposed Approach
The New River is a Water of the United States as defined by the Clean Water Act. Flow originates approximately 18 miles south of the US-Mexico border, in the Mexicali Valley, Mexico. The New River enters the United States by the Calexico West Port of Entry, in Calexico, California, with a nominal flow of 160 cubic feet per second (cfs). The New River was once considered the most polluted river in North America with source flow from urban, agricultural, and industrial discharges including trash and raw sewage from the reaches located within Mexico. The vision for the New River Calexico Reach, which extends from the US-Mexico border to Highway 98, is to have "a restored and transformed river parkway [that] serves as a safe and accessible recreational corridor, and an aesthetic and environmental amenity for the existing and future development of the Ca lexico area" (Salton Sea Authority, 2020).
Part of the New River Improvement Project- Calexico Reach includes building a 72-inch bypass pipe to divert flow from the USMexico border to just east of the American Canal. This bypass pipe would limit exposure of river pollutants to the City of Calexico (City) residents and the surrounding community. The City plans to build a 16-inch force main pump-back system that will discharge approximately 5 million gallons per day (mg pd) of tertiary treated wastewater from the Calexico Waste Water Treatment Plant (WWTP).
The discharge from the WWTP will only partially replace the flow diverted to the 72-inch bypass pipe. The City, therefore, seeks to understand the potential impacts of reduced flow to the New River riparian area by developing a groundwater monitoring network to determine groundwater occurrence, flow direction, and quality. The data collected from the monitoring network will be part of a more comprehensive adaptive management program to address Clean Water Act (CWA) requirements from the United States Army Corps of Engineers (Corps) and the Colorado River Basin Regional Water Quality Control Board (Regional Water Board) for the New River Improvement Project- Calexico Reach.
Both standard monitoring wells and traditional piezometers can be used for groundwater occurrence evaluation, water level measurement, and groundwater sampling. Traditional piezometers are simple push-points or casing installed with only a single perforation at the base. These devices can be used to cover relatively large areas for a low cost where groundwater is shallow; however, they can be difficult to install manually past five feet of depth. Push-piezometers or pre-pack wells installed manually can be useful in wetland or riparian environments with soft sediments or shallow and near-surface groundwater. Once a truck-mounted or limited access rig is employed for deeper depths or more difficult drilling, a modern monitoring well design with well screen can be used for nominal additional cost. Monitoring wells are also preferred for defensible groundwater quality sample collection. Pre-packed well designs, such as manual push-piezometers, can also be used in shallow water or soft-sediment environments. However, cost savings is typically minimal compared to traditional monitoring wells at deeper depths unless numerous pre-pack wells are installed. Based on lithology data from past work in the area, a drilling rig will be needed for this project, and as a result, three conventional 2-inch diameter PVC monitoring wells are currently proposed, as described below.
Water level measurements can be collected manually by electronic sounder or with dedicated downhole pressure transducers and data loggers for automatically scheduled measurements. GLA has experience with both methods and can discuss the pros/cons with the City once the work area is better specified and site conditions are better understood.
As discussed with the City, GLA has provided some modifications to the scope of work. Each of these tasks are optional and will be clearly identified in the proposed tasks listed below. GLA will be in communication with the City to identify the best approach for the project.
TASK 1. DOCUMENT REVIEW
GLA has received and reviewed several files from the City including a 2018 geotechnical report for the proposed New River Improvement Project Encasement, Pump-Back and Trash Screen System. A subsurface exploration was completed that consisted of 15 hollowstem auger borings and 10 cone penetration tests (CPT). Depth to groundwater encountered in the borings ranged from 4 feet to approximately 30 feet below ground surface (ft bgs). Increases in depth to groundwater appear to be due to increased elevation as the topography slopes up and away from the river. Data collected from previous studies will assist GLA in designing a monitoring network. www.geo-logic.com -
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH In addition, GLA will further review additional reports provided by the City such as existing Jurisdictional Delineation of Waters of the United States (WoUS) reports (e.g., Jurisdictional Delineation), and previous hydrologi c/hydrogeologic studies for the project area and the New River and its floodplain in the Calexico area. GLA will also conduct a literature search of nearby sites for relevant well data using publicly available resources such as Geotracker.
TASK 2. TECHNICAL REPORT AND WORK PLAN
GLA will prepa re a technica l work plan to propose a groundwater monitoring network for the City to review and approve. The document will be prepared by Project Manager Hannah Erbele, PG, a Professional Geologist in California. Prior to developing the work plan, GLA will attend a site walk with the City to gain a better understanding of the area and to identify potential issues such as, but not limited to, drill rig accessibility and potential sensitive habitat restrictions. The site walk will also be helpful for identifying monitoring locations that ca n be safely accessed by City personnel.
GLA will work with the City to develop a phased approach for insta lling monitorin g locations. As discussed with the City on a preliminary basis, the first phase will be to install a groundwater monitoring network in the area(s) between the 72-inch pi pe and the Wetlands of Interest, north of Animal Shelter Drive, near the east end of the Calexico International Airport to determine groundwater flow direction and groundwater quality. GLA anticipates installing at least three, 2-inch diameter PVC monitoring wells to screen through first water.
GLA may also download data from a US Geological Survey (USGS) stream gauge, "New River at International Boundary at Calexico CA," to assist with flow direction maps. GLA also recommends installing a staff gauge closer to the area of interest to measure river water surface elevation contemporaneously with groundwater level s.
The work plan will include the number, location, and type of monitoring well s and the rationale for each. The proposed locations will be shown on a map. The work plan will also address concerns about site accessibility and security. A diagram showing the typical construction features of the proposed wells will be included in the work plan. The work plan will include procedures for collecting groundwater samples, including sample types, sampling techniques, sample containers, holding times, chain-of-custody procedures, and analytical methods. GLA anticipates sampling for major ions, total dissolved solids (TDS), E.coli, and metals. As discussed with the City, GLA also recommends sampling for stable isotopes of oxygen and hydrogen (delO/delD) to help characterize groundwater and compare it to recycled water, potable water, river water, and stormwater. For example, rainwater will typically have a lighter isotope signature than recycled or potable water.
The work plan will include a health and safety plan (HASP) with site-specific considerations that will be followed by field personnel. The work plan will also include a proposed schedule to install and develop the monitoring network and collect one round of water levels and groundwater samples. If needed, additional rounds of water level measurement can be conducted at a later date.
TASK 3. FIELD IMPLEMENTATION
Within 15 days following City approval of the technical report, GLA will submit necessary permit application(s) to survey, install, and develop the approved groundwater monitoring network. Field work will commence once permits are received. Field work will be performed under the supervision of a California Professional Geologist.
Subsurface Utility Clearance
A search for subsurface utility lines will be completed in the vicinity of planned subsurface sampling locations to ensure that fieldmarked drilling locations are not co-located with known utility lines. Proposed work areas may have to be moved based on the results of the utility location and clearance task. Underground Service Alert (USA) will be contacted, and USA field staff will locate and mark utility line locations at the project site. A geophysical survey firm will be subcontracted to provide utility clearance service at each proposed work area. Borehole clearance will consist of using a variety of geophysical survey methods to locate potential utility lines at each of the proposed sampling points pre-marked in the field.
The final step in the sequence of utility line clearance will be hand-augering. All subsurface sampling points will be hand-augered to 5 to 7 ft bgs to help determine if the sampling location is co-located with subsurface utility lines. If a subsurface obstruction is encountered with the hand auger, the sampling location will be moved approximately 3 feet away from the original location. Hand-augering will continue until a clear borehole is obtained or until it is determined that the boring cannot be located as originally planned. www.geo-logic.com -
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Drilling and Logging
A California-licensed well driller will be contracted to complete the soil borings and well installation. Hollow-stem auger drilling is anticipated to be suitable for the project area based upon the soils encountered during prior drilling (i.e., clays, silts, and sands).
Depending on site conditions to be determined during the site walk, a truck-mounted limited access hollow stem auger rig may be proposed.
Field boring and well construction logs will be created in accordance with American Society ofTesting Materials (ASTM) Method D2488 (2006) entitled, "Standard Practice for Description and Identification of Soils (Visual-Manual Procedure)." Field logs will include soil boring and well installation details, in addition to supplemental information regarding samples collected or hydrogeologic or drilling observations such as encountered fill, mineral content, water content, drilling progress, or drilling rig behavior. Field draft boring logs will be created and final boring logs will be created for reporting based on the field logs. Unless otherwise requested, cuttings will be directed to grade.
Well Installation
GLA recommends installing standard monitoring wells instead of traditional single-port piezometers or piezometer push-points.
Monitoring wells are preferred for routine industry standard water level measurement and groundwater quality sampling per state and federal guidance. It is expected that wells will be constructed of 2-inch Schedule 40 PVC and will be installed using the auger "pullback" method. The screen installed in each well boring will consist of 5 feet of Schedule 40 pre-slotted 0.010 inch screen. Shallow screen intervals will be specified based on hydrogeologic conditions encountered and field lithology data collected during drilling. The well screen will be set in 2/12 or 2/16 filter sand pack (one foot above top of screen) with 3 feet of hydrated granular bentonite chips in the boring annulus above the filter pack. The remaining length of the annulus will be filled with cement-bentonite grout to approximately
0.5 ft bgs.
Wells will be completed with water-tight steel monuments with approximately 3 to 4 feet of above ground casing. The steel or aluminum monument box will have a locking exterior cover and an expandable locking well cap. Wells will be developed using downhole surging, bailing and pumping. Unless otherwise requested, development water will be directed to grade. GLA understands that the U.S. Border Patrol routinely patrols the floodplain and the New River; therefore, each well will be surrounded with four heavy duty safety bollards painted yellow for high visibility and protection of the well.
Temporary Staff Gauge Installation
As an optional task, GLA proposes to install a temporary staff gauge in the river channel to measure water level. The staff gauge will include perforated PVC casing or punched steel pipe (or equivalent) to install a pressure transducer (see below regarding transducers).
Land Surveying
Upon completion of the well installation and staff gauge installation, a Californialicensed land surveyor will be retained to survey the new monitoring locations for horizontal location and vertical elevation. Select property features will also be surveyed, such as adjacent infrastructure and/or building corners to facilitate mapping efforts.
Water Sampling
One round of water sampling will be conducted after installing the monitoring wells.
Water samples will be collected from groundwater and river water for the following:
major ions, TDS, E.coli, and metals. GLA will purge wells and collect samples using standard industry methods. Non-dedicated and/or non-disposable sampling equipment will be decontaminated between sampling points. The samples will be packaged in a cooler of ice and sent to a California approved laboratory certified by the Environmental Laboratory Accreditation Program (ELAP) for analysis. www.geo-logic.com -
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH As an optional task, GLA recommends collecting water samples for the following stable isotope analyses to further evaluate groundwater and stream water geochemistry: 180/160 (delO) and 2H/1 H (delH or del deuterium [delD]). In addition to groundwater and river water, water samples will be collected from potable and/or tertiary treated water at the site. The samples wil l be packaged and sh ipped to an isotopic laboratory for ana lysis.
Water Level Measurements
Following installation and prior to sampling, GLA will collect manual depth to water measurements at each monitoring well, using an electric sounder with an accuracy of 0,01 feet. GLA will concurrently measure the river height from the temporary staff gauge(s) installed.
As an optional task, GLA also recommends installing pressure transducers to record depth to water measurements in each proposed monitoring location. Pressure transducers are eq uipped with data loggers and will automatica lly record measurements collected at set intervals. Groundwater levels measurements recorded on data loggers will be downloaded by GLA prior to reporting.
TASK 4. TECHNICAL REPORT
GLA will prepare a technical report for the City discussing the installation and development of the monitoring network, the purging and sampling the network, and the lab results. The report will include the technique used for installation of the network, and a summary of field conditions encountered during installation, including boring logs and soi l types. The report will also present construction features of the monitoring devices and a diagram for each device showing their characteristics and surveying data, such as elevation of the casing of wells relative to nominal mean sea level (MSL), total depth, screen section(s), and type of casing. GLA will clearly summarize depth to first-encountered groundwater and its elevation and direction of flow, and will produce groundwater contour map(s) as appropriate. Laboratory results will be summarized in tables and figures, and laboratory reports will be included as an appendix.
Proposed Staffing Plan
Our proposed team members' roles and responsibilities, and advantages of their assignment to the City's project are described below.
Availability of staff members over the duration of the project is based on an average 40-hour work week. The benefit of GLA's large network of professionals is that any of our team members' competing priorities may be shifted to accommodate the City's project needs if necessary. Recent, relevant experience on similar projects where a similar role was performed are included in the previous staffing tables and are detailed in resumes starting on page 12.
ROLES AND RESPONSIBILITIES OF KEY STAFF MEMBERS
Hannah Erbele, PG, will serve as the Project Manager and the City's primary contact throughout the duration of the contract. She will be responsible for management of the project's overall scope, schedule, and staffing, including coordinating with subconsultants. Following the document review task, she will develop the work plan in consultation with the City, oversee field implementation tasks, and complete the final technical report. GLA's findings will help the City better understand the potential impacts of reduced flow to the New River riparian area by evaluating groundwater occurrence, flow direction, and quality.
Ms. Erbele will dedicate approximately 40% of her availability to the project on average; more, if/when required. Benefits she brings to the team include:
./ California licensed Professional Geologist
./ Experience with groundwater monitoring networks, and numerous technical reports ./ Dedicated to managing the City's project
./ Highly responsive to client requests
As Principal Hydrogeologist, John Dodge, PG, CHG, will be responsible for high-level staff allocation and technical direction, ensuring the City's satisfaction, senior technical oversight and quality assurance of GLA's deliverables. He will also serve as an alternate point of contact. Mr. Dodge can dedicate his availability to the project as needed per City request. Benefits he brings to the team include:
./California licensed Professional Geologist and Certified Hydrogeologist ./Extensive experience overseeing hydrogeologic investigations throughout southern California www.geo-logic.com llm
PROPOSAL
CITY OF CALEXICO- HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Kyle Welchans, PG, QISP, will provide Field Quality Control. He understands the requirements of this project from his experience working on similar hydrogeologic projects. Mr. Welchans plans to commit approximately 10% of his availability to the project on average; more, if/when required. Benefits he brings to the team include:
./California licensed Professional Geologist
./ Decades of experience with groundwater monitoring and reporting in Imperial County Heather Hackstedde, GIT, will support the project as a field scientist. She will be responsible for maintaining field boring and well construction logs during drilling, overseeing well installation, installing the temporary staff gauge, if applicable, collecting depth to water measurements, and overseeing water sampling. Ms. Hackstedde is able to commit approximately 40% of her availability to the project on average; more, if/when required. Benefits she brings to the team include:
./ Experience providing on-site project support and performing field work ./ Contributions to hydrologic investigations and technical reporting ./Comparatively lower billing rate appropriate for more routine tasks to keep City's overall cost lower James Yelverton, GIT, will support the project as a field scientist. He will be responsible for maintaining field boring and well construction logs during drilling, overseeing well installation, installing the temporary staff gauge, if applicable, collecting depth to water measurements, and overseeing water sampling. Mr. Yelverton regularly works on a crew that is completely dedicated to groundwater sampling. He is able to commit approximately 40% of his availability to the project on average; more, if/when required.
Benefits he brings to the team include:
./ Close proximity to the project from GLA's San Diego office ./ Experience providing on-site support to projects and performing field work in Imperial County and on the New River
PRINCIPAL TEAM MEMBER FIRMS AND SUB CONSULTANTS
As prime consultant, GLA will be responsible for project management, contract administration, client communication, and coordination with the following subconsultants: Cascade Environmental (Drilling); Spectrum Geophysics (Utility Survey); Calvada or DJI (land surveying); Blaine Tech Services (field sampling); EnviroMatrix Analytical, Inc .. (laboratory analysis); and INSTAAR - University of Colorado Boulder (isotope laboratory analysis).
ORGANIZATION CHART
As depicted in the organizational chart below and as previously described, key staff include field technicians and a regulatory liaison who will report directly to our project management team, along with subconsultants performing specialty services.
Cascade Environmental
Spectrum Geophysics
Calvada or DJI
SUBCONSULTANTS
Blaine Tech Services
EnviroMatrix Analytical, Inc.
INSTAAR- University of Colorado Boulder
ADDITIONAL STAFF SUPPORT
AVAILABLE COMPANYWIDE
57 Engineers
13 Environmental Scientists
6 Modeling Professionals
53 Hydrologists/
Hydrogeologists
38 Geologists
14 GIS/CADD/Database
39 Laboratory & Field
Technicians
3 Biologists
www.geo-logic.com ..
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH Education
MS, Geology, University of
Georgia, 1991
BS, Geology, University of
Delaware, 1986
Registration
Professional Geologist,
California, No. 6495
Certified Hydrogeologist,
California, No. 1090
Licensed Geologist,
Washington, No. 1097
Additional Training
Groundwater Resources
Association of California
JohnJ.Dodge,PG,CHG
Principal-in-Charge, Principal Hydrogeologist
Mr. Dodge is a Professional Geologist and Certified Hydrogeologist in Ca lifornia with 31 years of experience in environmental and water resources consulting. Mr. Dodge has a diverse background in contaminant hyd rogeology, site characterization, environmental investigation, and remediation of complexly impacted properties. Mr. Dodge has completed hundreds of projects solving client issues related to remedial investigation and planning, risk evaluation, costing and financial analysis, litigation and mediation, Resource Conservation and Recovery Act and the Comprehensive Environmental Response, Compensation, and Liability Act (RCRA/CERCLA), contaminated soil, sediment and groundwater, watershed characterization, solute fate and transport, isotope geochemistry, and related topics. Past accomplishments include successful investigation and remediation projects involving chlorinated solvents, metals, mi xed waste, tritium, fuels, polycycli c aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), pesticides, radionuclides, nitrate, phosphorus, perchlorate, 1,4-dioxane, coal tar, methyl tert-butyl ether (MTBE), dioxins/ furans, pharmaceuticals, and other contaminants in a variety of hydrogeologic and hydrologic environments. Mr. Dodge opened DBS&A's Orange County, California, office in 2007.
Hydrogeologic Characterization and Quantitative Water Balance Development for Nitrate-Selenium Evaluation, Newport Bay and Big Canyon Watersheds, Orange County, California
Project Manager for Orange County Watersheds and the City of Newport Beach for their evaluation of water sources and sinks in the vicinity of high selenium and nitrate detections in Big Canyon (Newport Beach) and within the extensive storm water ch annel network extending throughout the Newport Bay Watershed in central Orange County. Led the hydrogeologic characterization, recharge and infiltration modeling, groundwater flux and flow mapping, selenium flux assessment, and water balance development. The goal is to control selenium flux so it can be reduced or eliminated to meet United States Environmental Protection Agency (U.S. EPA) total maximum daily load (TMDL) requirements in both areas.
LandWell Restoration Project/Basic Remediation Company, Henderson, Nevada Project Hydrogeologist and technical advisor during assessment, remediation, risk assessment, and redevelopment of complex industrial property (over 2,200 acres) impacted by multiple waste streams from war-time manufacturing plants and related operating facilities. The Landwell Restoration Project, described in detail at https://brcrestorationproject.com/, is one of the largest and most technically complex multi-party investigation/remediation/redevelopment projects in the western U.S. Under Mr. Dodge's oversight, DBS&A completed a baseline groundwater sampling report and groundwater contour maps that included water level and contaminant data for over 400 wells with 474 parameters per well. Utilized tritium (3H) and stable isotopes of oxygen (de!O) and hydrogen (de!D) to illustrate that magnesium, lithium, other dissolved metals, and total dissolved solids (TDS) in groundwater approximately 500 feet below grade are naturally occurring, related to historical playa evaporation, and separate from surface magnesium ore processing and production plant. Developed groundwater flow maps and mass flux estimates for shallow water bearing zone discharging into riparian area and Las Vegas Wash.
Hydrogeologic Monitoring Program, Private University, Los Angeles County, California
Principal Hydrogeologist for routine monitoring program, groundwater recharge evaluation, and water balance modeling effort to document and ensure that irrigation of reclaimed wastewater does not result in water quality impacts or downslope geotechnical instability. Ongoing tasks include water balance development and refinement; monitoring of irrigation, evapotanspiration (ET), surface runoff, soil storage, and deep percolation; monitoring of perched and regional groundwater www.geo-logic.com ..
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH John J. Dodge, PG, CHG-Page 2
elevations; water quality sa mpling and reporting; supporting National Pollutant Discharge Elimination System (NPDES) permit requirements; semiannual and annual reporting to regulatory agencies and community groups; general hydrol og ic advice regarding recycled water demand, water conservation, water quality enhancement, and operational effi ciency measures aimed at optimizing institutional resources.
San Marcos Lake and Watershed Evaluation and Remediation, San Diego County, California Managed fi ve-party technica l and legal project team during accelerated CERCLA remedial investigation reporting and feasibility study development for impacted regional watershed and lake environment. Evaluated groundwater occurrence, quality, flow direction, and input to impacted streams, wetlands, riparian areas, and terminal lake. Delivered comprehensive public stakeholder presentation with San Diego Water Board staff. Compiled and organized years of regional watershed, lake, sediment, and water quality data to prepare engineerin g feasibility study of remedial options. Conceptualized, scoped, costed, and prepared preliminary design for several strea m and lake restoration options for watershed and riparian area impacts. Collaborated with Water Board staff to identify suitable Section 401/NPDES permitting alternatives for restoration work in sensitive habitats. Identified state and federal applicable regulations and permits for various engineering options. Prepared and submitted draft CERCLA remedial investigations and feasibility studies (Rl/FS) report and risk assessment for watershed, wetlands, and lake in 5 months with numerical model results evaluating various technology options available only within the last 30 days before a mediation deadline. Delivered full CERCLA Rl/FS report with costing options ahead of schedule.
Freedom Boulevard Groundwater Corrective Action, City of Watsonville, California Principal Hydrogeologist assisting the City with regional hydrogeologic conceptual site model development and corrective action planning for shallow groundwater impacts related to former dry cleaner facility release of chlorinated solvents. Reviewed and summarized numerous past investigation plans, reports, and documents relating to solvent impacts to soil, soil vapor and groundwater and developed in-situ treatment technology approach detailed in Corrective Action Plan submitted to Central Coast Regional Water Board. Monitoring wells and small-diameter piezometers are installed at the site for routine groundwater sampling and the measurement of groundwater occurrence and flow direction over time. A proposed Monitoring and Reporting Plan (MRP) was prepared for Regional Water Quality Control Board (RWQCB) approval.
Resource Conservation and Recovery Act Program Management, Impacted Recycler Facility, Los Angeles, California
Project Manager and client advisor for RCRA facility investigation, Corrective Measures Study, operation and maintenance of interim corrective measures implementation, groundwater monitoring, and related groundwater tasks at recycler Site with free-phase light non-aqueous phase liquid (LNAPL), dissolved metals and volatile organic compound (VOC) impacts above municipal aquifers in Los Angeles county. Recognized that ongoing remedial extraction could be discontinued since LNAPL was residualized, migration ceased, and extraction was no longer effective.
Investigation and Remedial Planning, Missile Testing Silo, San Diego, California Project Advisor for investigation and remedial planning at inactive missile testing silo later used as a solid and liquid industrial waste disposal cell. A variety of industrial waste was dumped into the silo including PCBs, metals, and VOCs. The groundwater level in the silo cycles up and down with the tides and a comprehensive groundwater investigation was completed to evaluate the potential effects of tides on contaminant transport at the coastal facility. An evaluation of potential contaminant transport pathways to San Diego Harbor was also conducted, including sitewide geophysical surveys and downhole camera and pipeline video surveys conducted during lowtide conditions when groundwater levels had declined and the lines were accessible.
Groundwater Investigation and Remediation, Former Aerospace Facility, Newport Beach, California Directed supplemental site investigation and remediation of residual groundwater impacts at former aerospace plant redeveloped into residential community. Designed and implemented groundwater monitoring and reporting program and enhanced reductive dechlorination application for groundwater remediation. Evaluated remedial technologies for potential application, including funnel and gate technology and oxidation under oversight, review and approval of the RWQCB.
Evaluation of Injection Well/Groundwater Recharge Scenarios, Santee, California Senior Hydrogeologist for a water district client in San Diego County modeling groundwater flow, residence time, and flowpaths under various injection well and groundwater recharge scenarios. The flow model will be used to simulate injection well recharge, travel times, and pumping well recovery for a managed aquifer recharge program. www.geo-logic.com 11111
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH Education
BS, Earth and Environmental
Science (minor in Education),
University of California, Irvine,
2010
Registration
Professional Geologist,
California, No. 9961
Additional Training
OSHA 40-Hour HAZWOPER
Training
Hannah Erbele, PG
Project Manager, Hydrogeologist
Hannah Erbele is a Professional Geologist and hydrogeologist who has worked on numerous hydrogeology and environmental projects during the past 10 years. Ms. Erbele is well versed in field activities and can provide technica l, field, and professional management on issues pertaining to hydrogeologic investigation of groundwater, surface water, and water quality. Ms. Erbele is also experienced in industry-standard geographic information system (GIS) technology used to analyze and interpret data related to water quality, groundwater, environmental, and remediation services.
Watershed Management and Hydrologic Monitoring Program, Private University, Los Angeles County, California
Project Geologist who routinely prepares annual reports and updates to a complex water balance model, which includes groundwater monitoring, surface water monitoring, storm drain and sub drain discharge calculations, irrigation flow volumes, and evapotranspiration and precipitation measurements. Also conducted a hydrogeologic investigation to gauge the source of groundwater accumulating at base of slope below a roadway and buildings. Piper stiff diagrams and stable isotopes analysis of groundwater and other water sources (delO/delD and nitrogen) were conducted to help identify the source of the water. Groundwater elevation contours were developed in a complex geological setting. Provide ongoing technical support for the Hydrologic Monitoring Program.
Corrective Action Plan, City of Watsonville, California Project Geologist who assisted with the preparation a Corrective Action Plan for Regional Water Board review and approval that summarizes numerous prior efforts to characterize groundwater occurrence and flow direction and address groundwater quality impacts. The City is responsible for the cleanup of wastewater containing tetrachloroethene (PCE) that was discharged to the City sewer from a drycleaner (Offsite area). PCE from the dry cleaner impacted soil, soil vapor, and groundwater in both the onsite and offsite areas. Analyzed data results from several rounds of sampling in area groundwater monitoring wells. Additional data from soil vapor probes, subslab vapor probes, crawlspace vapor samples, indoor air and ambient air samples was also part of the groundwater impact evaluation. Evaluated potential commercial and residential human health impacts due to groundwater impacts and resulting indoor air vapor intrusion.
Eastern Municipal Water District Conditional Waiver of Waste Discharge Requirements from Agricultural Operations in the San Jacinto River Watershed, Perris, California
Project Manager who has worked with the Santa Ana Regional Water Quality Control Board (RWQCB), the Eastern Municipal Water District (EMWD), and Coalition members to develop the Water Quality Monitoring Program Plan (WQMPP) to monitor ambient water quality of nitrate and total dissolved solids (TDS) in the groundwater to comply with a RWQCB Order. Managed and prepared several WQMPPs and best management practice reports for EMWD.Under the Santa Ana RWQCB Order No.
RB-2017-0023, the Conditional Waiver of Waste Discharge (CWAD) requires groundwater monitoring to ensure that current agricultural practices are not contributing to the degradation of ambient water quality.
Hydrogeologic Investigation, Private Residence, Newport Beach, California Performed a hydrogeologic investigation that includes drilling and installing monitoring wells and groundwater sampling and analysis for general minerals, delO/delD isotopes, and pharmaceutical and personal care products for a private residence with steep down-sloping hillsides to the north and to the west has recently exhibited abnormally high groundwater elevations. Reviewed the historical site documentation and evaluated groundwater elevations from 14 on-site piezometers. www.geo-logic.com 11111
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH Hannah Erbele, PG-Page 2
Groundwater and Reclaimed Water Study, City of Thousand Oaks, California Performed the groundwater assessment of the Conejo Valley Groundwater Basin, which included an operational yield analysis, analysis of groundwater elevations and storage changes, as well as water quality issues and concerns. The purpose of this study was to evaluate the role that development of local supplies, including groundwater, surface water, and reclaimed water, ca n play in improving the City's water supply reliability.
Recomputation of Ambient Water Quality, Basin Monitoring Program Task Force, Santa Ana Watershed Project Authority, Santa Ana River Watershed, California
Project Geologist for 1996-2015 re-computation of ambient water quality for all groundwater management zones in the Santa Ana watershed for which adequate data exist. Collected and formatted data from the 22 Basin Monitoring Program Task Force agencies, managed the database team, helped develop new statistical tools, and applied GIS analysis to contour and interpret the data to calculate the current ambient water quality. Current ambient water quality, together with the groundwater quality objective allows the Regional Board to assess if assimilative capacity exists in each groundwater management zone.
Evaluation of Long-Term Trends and Variations in the Average Total Dissolved Solids Concentration in Wastewater and Recycled Water, Southern California Salinity Coalition, Southern California During the 2011 to 2015 California drought, various wastewater treatment facilities in Southern California experienced difficulty meeting discharge permit limits. Under the direction of Southern California Salinity Coalition, Ms. Erbele studied the impacts that water conservation, self-regenerating water softeners, droughts, and long-term climate have on TDS in wastewater across a region extending from Los Angeles to San Diego County. Ms. Erbele was instrumental in analyzing data monthly flow and concentration data from over 20 treatment facilities, developing statistical models to represent trends, and determining the impact conservation has on wastewater treatment plants.
Water Quality Investigation and Impacts Analysis for Cottonwood Sand Mine Application, San Diego County, California
As Hydrogeologist, assisted with impacts analysis and water balance calculations in support of an Environmental Impact Report in accordance with guidelines established by the County of San Diego Department of Planning and Development Services.
Salinity Economic Impact Model Update, U.S. Bureau of Reclamation, Lower Colorado River Basin Project Manager for validating and updating the Salinity Economic Impact Model (SEIM) for current economic conditions. Also expanded the model to identify new input data and create new impact functions not in the existing model. The SEIM, developed by the U.S.
Bureau of Reclamation, estimates the quantified damages due to the salinity of the Colorado River. The model covers seven economic sectors (agriculture, residential, commercial, water utilities, industrial, groundwater, recycling/publicly owned treatment works) and five regions (Central Arizona, Mainstem Arizona, Mainstem Nevada, Mainstem California, and the Metropolitan Water District service area).
Project required efficient coordination of numerous subconsultants and stakeholders. www.geo-logic.com 11111
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH Education
BS, Geology, Sa n Diego State
University, 2007
Registration
Professional Geologist,
California, No. 9255
Qualified Industrial Stormwater
Practitioner
Additional Training
OSHA 40-Hour HAZWOPER
Training
Nuclear Gauge Safety Training
Course
J. Kyle Welchans, PG
Geologist, Field Quality Control
Mr. Welchans is a Professional Geologist registered in the State of Ca lifornia and currently serves as a Senior Geologist for Geo-Logic Associates. In this capacity, his duties have included project management; data analyses; report preparation; soil, groundwater and surface water sample collection; logging of exploratory borings and well drilling; geologic log preparation; and grading and foundation construction quality assurance testing. Most recently, Mr. Welchans has been responsible for managing and preparing water quality monitoring reports throughout the state.
Allied Imperial Landfill Monitoring and Reporting Program and Well Construction, Imperial County, California
Project Manager for routine semiannual groundwater monitoring and reporting at Allied Imperial Landfill, located within the Colorado River Regional Water Quality Control Board (RWQCB).
To support landfill expansion, permits were obtained from the Imperial County Planning and Development Services Department, and subsequent logging and construction of seven groundwater monitoring wells and seven soil-pore gas probes was conducted. The soil-pore gas probe drilling and installation part of the project required communication with LEA.
Imperial County Landfill Monitoring and Reporting Programs, Imperial County, California
Staff Geologist responsible for data review, statistical analysis, and preparation of semiannual monitoring reports. Tasks also included groundwater and New River gauging and groundwater sampling. To aid in the collection of groundwater samples in monitoring wells positioned adjacent to the New River which often have significant root intrusion, custom field tools were fabricated to remove roots from wells so that bailers could then be used to purge and sample wells.
Salton City Solid Waste Site, Imperial County, California Project Manager for routine semiannual groundwater monitoring and reporting and quarterly landfill gas and off-site spring monitoring and reporting. As part of a landfill expansion project, permits were obtained from the Imperial County Planning and Development Services Department, and subsequent logging and construction of five groundwater monitoring wells and 16 multi-depth soil-pore gas probes was conducted. The soil-pore gas probe drilling and installation part of the project required communication with LEA. Work at the site has also included drawdown and slug tests and repairs to damaged wells.
American Organics Composting Facility, San Bernardino County, California Project Manager for ·routine quarterly water quality monitoring and reporting at American Organics Composting Facility located in the Lahontan RWQCB. Duties have included non-routine work such as developing a monitoring and reporting plan, a sampling and analysis plan, boring logging and installation of four groundwater monitoring wells, and oversight of six monitoring well abandonments and one install. More recently, nine exploratory borings were completed on open land adjacent to the Mojave River to support a geologic and hydrogeologic characterization of the area for future site expansion.
Hydrogeologic Investigations, East Otay Mesa Landfill Siting Study, San Diego County, California
Geologist responsible for drilling of borings and construction of groundwater monitoring wells. Data collection is ongoing to provide information related to groundwater flow direction and gradients and natural background conditions at this potential new landfill site. www.geo-logic.com 111':11
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH J. Kyle Welchans, PG- Page 2
Water Quality Investigation and Impacts Analysis for Cottonwood Sand Mine Application, San Diego County, California
Performed surface water sampling, groundwater sampling, and drilling and soil sampling as part of a water quality investigation. The results were presented in a technical report that characterized pre-mine soil/water conditions that address water quality impacts for the Cottonwood Sand Mine. The impacts analysis was performed in support of an Environmental Impact Report (EIR) in accordance with guidelines establ ished by the County of San Diego Department of Planning and Development Services.
City of San Diego Landfill Monitoring and Reporting Programs, San Diego, California Staff Geologist responsible for semiannual water quality sampling and water level gauging at the City's active West Miramar Landfill and six inactive/closed landfills. Project work also included logging and drilling of soil-pore gas perimeter probes at the West Miramar Landfill, abandonment of two groundwater monitoring wells and replacement with one dual-nested groundwater monitoring well at South Miramar Landfill, and drilling and install of three landfill gas extraction wells at South Mirmar Landfill.
San Diego Landfill Systems, Borrego, Otay, Ramona, and Sycamore Landfill Monitoring and Reporting Programs, San Diego County, California
Project Manager for routine semiannual groundwater monitoring and reporting at one closed and active landfills located within the San Diego RWQCB and Colorado River RWQCB. Also responsible for maintaining corrective action pump and treat systems at three of the four landfills. Project has included well abandonment and replacement at Borrego Landfill and piezometer abandonments at Sycamore and Otay Landfills. Previously, as a staff Geologist duties included groundwater sampling, including both standard and low-flow purging and sampling methods.
www.geo-logic.com ..
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH Education
BS, Earth and Space Exploration
(Geoscience), Arizona State
University, 2016
Registration
Geologist in Training, California,
No. 170415
Additional Training
OSHA 40-Hour HAZWOPER
Training
MSHA 20-Hour Mine Safety
Training (Part 48)
Heather Hackstedde, GIT
Geologist, Field Scientist
Ms. Hackstedde is a geologist who has provided technical and professional support for multiple hydrogeology, engineering, and environmental investigations at hazardous waste and disposal sites .
She is skilled in using geographic information systems (GIS) and multiple analytica l platforms to display and interpret data.
Hydrogeologic Investigation, Private Residence, Newport Beach, California Assisted with hydrogeologic investigation to determine the source of abnormally high groundwater elevations and unstable surface conditions at a private residence. Project required collection of water level measurements and tensiometer readings.
El Sobrante Sanitary Landfill, Waste Management, California Project Geologist for quarterly water level monitoring, semi-annual groundwater sampling, and annual leachate and subdrain sampling events.
City of Flagstaff Water Services Division, Flagstaff, Arizona Staff Hydrologist for assistance with Annual Water Commission reports produced for the City of Flagstaff Water Service Division for water, wastewater, reuse, and stormwater. Tasks included collecting pressure transducer data from seven wells and performing a water level correction analysis using Barometric and Earth Tide Correction to create hydrographs for the annual report.
Stringfellow Acid Pits U.S. Environmental Protection Agency Superfund Site, Department ofToxic Substances Control, Jurupa Valley, California Staff Hydrologist for monitor well construction, including angled wells, and routine monitoring of groundwater contaminant plume migration at the former hazardous waste disposal facility. The Stringfellow Acid Pits Superfund Site is one of the most polluted sites in California with more than 34 million gallons of liquid industrial waste deposited in evaporation ponds. Project work includes monitor well construction and continued monitoring of a large network of monitoring wells and piezometers.
Victor Valley Compost Facility, American Organics, Victorville, California As Staff Geologist, used statistical analyses for eight sampling events to generate Water Quality Protection Standards (WQPS) for a newly constructed compost facility. The WQPS identifies all constituents of concern (COCs), the concentration limit for each COC, the point of compliance at the facility, and all water quality monitoring points.
Rialto Perchlorate Investigation, Rialto, California
Field Team Member for perchlorate investigation including multi-port monitoring well construction and sampling.
Rock Creek Landfill Monitoring Well Installation, Calaveras County, California Field Team Member for monitoring well installation and geotechnical sample collection.
Apple Valley Sanitary Landfill, Apple Valley, California Staff Hydrologist for monitoring well installation and technical support in the creation of monitor well location maps using ArcGIS software.
City of Redlands Monitor Well Installation, Redlands, California Field Team Member for monitoring well installation and hazardous waste analysis ofVOCs and total petroleum hydrocarbons.
www.geo-logic.com ..
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH Education
BS, Geology, University of
Alabama, 2015
Registration
Geologist in Training, California
Additional Training
40 hour HAZWOPER
Certification
Nuclear density gauge
certification
James W. Velverton, GIT
Geologist, Field Scientist
As a Staff Geologist, Mr. Yelverton's primary duties include geotechnical and environmental borehole logging, compaction testing, and fi eld construction observation and inspection. In addition, Mr.
Yelverton is an integral team member of Geo-Logic Associates' wi ldfire debris removal project team.
Imperial County Landfills, Imperial County Public Works, Imperial County, California Staff Geologist responsible for nine semi-annual groundwater quality monitoring reports.
Responsibi lities include data uploads and preparation, simple statistical analysis, and report preparation.
Salton City Landfill, Burrtec, Salton City, California
Staff Geologist responsible for quarterly spring monitoring, fi eld data col lection, data analysis, and groundwater quality report preparation.
San Diego Landfill System, Republic Services, San Diego County, California Staff Geologist responsible for semi-annual groundwater quality monitoring reports. Responsibilities include data uploads and interpretation, Sanitas statistical analysis, and report preparation.
Prima Deshecha Slope Stability Monitoring, Orange County, San Juan Capistrano, California
Staff Geologist responsible for taking field measurements using a slope inclinometer as deep as 180 feet, measuring water levels in monitoring wells, and preparing quarterly reports.
Forward Environmental Management Plan, Republic Services, Manteca, California Staff Geologist responsible for monitoring air and mud rotary drilling for five groundwater monitoring wells drilled as deep as 500 feet below ground surface. Responsibilities included soil and mud logging, on-site logistical management, SimulProbe and mud sampling, interpreting geophysical surveys, and well development.
Chestnut Landfill, Fresno, California
Staff Geologist responsible for borehole logging, water sampling, and geologic interpretation during drilling for two groundwater monitoring wells using sonic drilling. Responsibilties included boring log preparation, field interpretation of soil geology, water sampling, and coordination with the client and county.
Bonzi Water Quality Monitoring and Reporting, Bonzi Family Trust, Modesto, California
Staff Geologist responsible for preparing data and writing for semiannual groundwater quality monitoring reports. Responsibilities include migrating all data into an online database, data uploads and interpretation, statistical analysis, analysis of facility data, and report preparation.
Johnson Canyon Landfill Monitoring Well Abandonment and Relocation, Salinas Valley Solid Waste Authority, Gonzales, California Staff Geologist responsible for well drilling and abandonment of two wells using sonic drilling and air rotary casing hammer methods. Responsibilties included boring log preparation, and field interpretation of soil geology, water sampling, and coordination with the client and county.
Fort Irwin National Training Center, San Bernardino County, California Staff Geologist responsible for boring log preparation and field interpretation of soil geology, soil sampling and coordination with the client during drilling for seven exploratory borings via hollow stem auger drilling.
www.geo-logic.com ..
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT - CALEXICO REACH
CURRENT WORKLOAD
Team members designated for this project are fully committed to meeting the project requirements. GLA maintains staff utilization ratios of roughly 60 to 75 percent. GLA team members are dedicated to the performance of this project and can provide the City with staff continuity throughout the duration of the assignment. The Proposed Staffing Plan contains availability of each team member.
Depth of Staff
The GLA team has the capacity to allocate additional personnel to provide the City with any services beyond those initially requested during this project, if necessary. Our Ca lifornia staff includes 28 Registered Professional Engineers, 25 Registered Professional Geologists (10 of whom are Certified Engineering Geologists and 10 of whom are Certified Hydrogeologists), and more than 20 field technicians.
RECORD OF MEETING SCHEDULES AND PROJECTS
Long-term and repeat clients are the best measure of GLA's quality and timeliness in the performance of a project. This satisfaction is reflected by our rate of 87% of our work contracted with long-term and repeat clients that have been maintained by GLA and DBS&A over the years. Mr. Dodge and Ms. Erbele routinely submit project documents ahead of deadlines.
Cost Controls
GLA has an excellent track record of completing projects on time and within or under the allowed budget. Time spent on projects is recorded electronically on a time sheet for each work day and integrated into a tracking system. Both Ms. Erbele as Project Manager and Mr. Dodge as Principal can obtain a detailed Project Progress Report that shows the amount of time spent per-person, as well as the budget-per-task, year-to-date, and project-to-date at any time.
If requested, a cost-tracking spreadsheet can accompany monthly invoices to provide a breakdown by project task, budget, total and per-task amounts spent during the current month, cumulative expenditures, and the percent of the task and total project budget remaining. In this way, both the GLA Project Manager and the City's Contract Manager will have current information regarding the progress of work and the budget status.
Quality Control
The GLA team implements a comprehensive quality control program and uses established procedures for documentation and review of al l work products. Work is reviewed, not only for technical content, but for compliance with client requirements and applicable regulations.
Schedule Control
Ms. Erbele and Mr. Dodge will work with the City's Project Manager from the onset of the project to establish milestone dates for project deliverables. The project schedule, as developed at the inception of the project, will be adhered to by the GLA team.
WORKING WITH AND REPRESENTING THE CITY'S INTERESTS
Ms. Erbele and Mr. Dodge work closely with established, long-term clients and new clients on a routine, daily basis to ensure project objectives and short-term/long-term goals are addressed and met going forward. We communicate regularly with our clients to ensure their interests are represented in a professional and technically sound manner. Sensitive client and stakeholder issues are common and receive careful consideration during project execution.
Communication and Collaboration
GLA understands the importance of active, frequent communication and client collaboration. We anticipate that there will be a number of conference calls and meetings with the City and, potentially, with regulators. Our staff is always receptive and responsive to client calls on-demand. Site meetings will be supplemented with video conference calls to review project progress and discuss issues that may arise during the course of the project. We can always meet with City staff online or at the project site as needed.
Regulatory Agency Review/ Permit Procurement
GLA staff have worked extensively with state and federal regulators in California on a variety of complex and routine projects. We have collaborated with regulatory staff to move numerous projects forward while meeting both client demands and regulatory requirements.
The regulatory agency review/approval process is an integral part of most of our projects. At times and when appropriate, we have challenged regulators in a professional manner on behalf of our clients, to clarify the technical or administrative background for regulatory decisions and refine required work requirements where possible. We recognize that permitting processes can be complex www.geo-logic.com Ell
PROPOSAL
CITY OF CALEXICO - HYDROLOGY SERVICES FOR NEW RIVER IMPROVEMENT PROJECT- CALEXICO REACH and require tenacity in pursuing approval. We organize early and plan ahead to prepare comprehensive application packages to promote one-time review/approval.
Agreement Exclusions
GLA accepts the City's proposed agreement, as is.
Modified Scope of Work
As discussed with the City, GLA has provided suggestions for modification to the approach throughout the previous Scope of Work section. Each of these tasks are optional and the highlights include:
./ Use of existing USGS stream gauge "New River at International Boundary at Calexico CA" ./Staff gauge installation near proposed monitoring wells to measure surface water levels ./Stable isotopes of oxygen and hydrogen (delo/delD) sampling to help characterize groundwater and compare it to recycled water, potable water, river water, or stormwater
./ Pressure transducer data loggers to record water levels at a set interval Lawsuit History
During the last ten years, GLA has sued three parties for failure to pay fees owed to GLA for its services. 1) A past lawsuit filed by GLA against the San Bernardino International Airport Authority (SBIAA) resulted in SBIAA paying GLA $75,000. 2) A past lawsuit resulted in GLA being paid approximately $320,000 in 2018. The defendant in that lawsuit was National Oilwell Vargo, L.P. 3) GLA has a current lawsuit against Metal Recovery Solutions, Inc. (MRS). MRS filed a counter-claim against GLA, which was ultimately dismissed. In January of 2020, a judgment was entered in favor of GLA for $2,037,676, plus prejudgment interest. MRS filed for bankruptcy court protection in July 2020 (ongoing collection efforts). Prior to MRS's bankruptcy court filing, GLA filed a related lawsuit against the sole owner of MRS, in a continuation of GLA's efforts to collect on the judgment against MRS.
In 2014, GLA was sued, along with Fieldstone California Partners, LLC, and Hunsaker & Associates Irvine, Inc., by Jennifer Loeffler in connection with her claims pertaining to a home she purchased from Fieldstone. A settlement was reached in that case on February 26, 2020. GLA and Hunsaker each paid $27,500 to Ms. Loeffler in exchange for a full and complete release.
Insurance
A copy of GLA's insurance certificate is on the following page.
Estimated Costs
A cost breakdown by task and hourly rates has been provided in a separate, sealed envelope. Costs for the field implementation are based upon current knowledge and conditions for the recommended tasks described above. This assumes the installation of three monitoring wells, one staff gauge, and four pressure transducers. This also assumes that there will one round of water level measurements and one sampling event for major ions, TDS, priority pollutant metals, E.coli, and isotopes. Some tasks are optional and are clearly identified on the cost table. Costs may vary based upon the number of monitoring locations agreed upon in the finalized work plan. A new scope and cost will be provided to the City for additional phase(s) of work. www.geo-logic.com Em
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I DATE(MM/DD/YYYY) ACC>Rc::l ' ~ CERTIFICATE OF LIABILITY INSURANCE 12/1 9/2020 THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS
CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S}, AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER.
IMPORTANT: If t he certificate holder is an ADDITIONAL INSURED, the policy(ies} must be endorsed. If SUBROGATION IS WAIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on th is certificate does not confer rights to the certificate holder in lieu of s uch endorsement(s}.
PRODUCER CONTACT
Aon Risk Insurance services NAME: \Vest, Inc . PHONE (213)630-3270 I r.e2. No.l: (847)953-0574 Los Angeles CA office (AIC. No. Ext):
707 Wilshire Bouleva rd E-MAIL
suite 2600 ADDRESS:
Los Angel es CA 90017-0460 USA
INSURER(S) AFFORDING COVERAGE NAIC#
INSURED INSURER A: Steadfast Insurance company 26387
Geologic Associates , Inc . INSURER B: Zurich American Insurance company 16535 2777 East Guasti Road INSURER C:
Ontario, CA 91761 USA INSURER D:
INSURER E:
INSURER F:
COVERAGES CERTIFICATE NUMBER: REVISION NUMBER:
THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WH ICH TH IS
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PERSONAL & ADV INJURY $1,000,000
·-GEN'L AGGREGATE LIMIT APPLIES PER: GENERAL AGGREGATE $6, 000,000 MPOLICY D PROJECT D LOC PRODUCTS - COMP/OP AGG $4,000,000 OTHER:
c AUTOMOBILE LIABILITY BAP0166068 -04 12/31/2020 12/31/2021 COMBINED SINGLE LIMIT $1, 000 ,000 fEa accident\ ~ BODILY INJURY (Per person) x ANY AUTO ~ ALL OWNED - SCHEDULED BODILY INJURY (Per accident) ~
AUTOS - AUTOS
NON-OWNED PROPERTY DAMAGE
~
x HIRED AUTOS x <Per accident) AUTOS
UMBRELLA LIAB H OCCUR SXS0166076-04-Excess of 12/31/2020 12/31/2021 EACH OCCURRENCE $5 ' 000 ,000 B ')( General Liab . ,Auto Liab. EXCESS LIAB CLAIMS-MADE 1 AGGREGATE $5,000,000 DED I !RETENTION
Employer's Liab . , Professional
Liab & Pollution Liability
WORKERS COMPENSATION AND \VC0166066-04 12/31/2020 12/31/2021 cl PER I IOTH- EMPLOYERS' LIABILITY X STATUTE ER Y/N B ANY PROPRIETOR I PARTNER I EXECUTIVE D E.L. EACH ACCIDENT $1,000,000 OFFICERJMEMBER EXCLUDED? N/A (Mandatory in NH) E.L. DISEASE-EA EMPLOYEE $1,000,000 If yes, describe under DESCRIPTION OF OPERATIONS below E.L. DISEASE-POLICY LIMIT ~1 11110 OM A Professi anal Li abi 1 i ty GPL0166069- 04 12/31/2020 12/31/2021 Each cl ai m $1,000,000 & contractor ' s Pollution Liab. Aggregate $2 ,000,000
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EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE Evidence of Insurance POLICY PROVISIONS.
AUTHORIZED REPRESENTATIVE
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