Supplemental_to_Attachment_G_-_Resumes SWCA.pdf

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ERICA BROWN GADDIS, PH.D., PROJECT MANAGER

Dr. Gaddis is SWCA’s National Water Resources Technical Director based out of Salt Lake City. Dr. Gaddis served as Director of the Utah Division of Water Quality from 2017 to 2022 and previously held other agency leadership positions. In 2022, she consulted for the Western States Water Council as a Senior Policy Advisor.

She has extensive experience implementing all aspects of Clean Water Act programs including total maximum daily load (TMDL) development, water quality assessments, watershed planning, and nonpoint source implementation. Before joining the Utah Division of Water Quality, Dr. Gaddis was a Principal Scientist at SWCA where she led numerous water quality projects for state and industry clients. Dr. Gaddis focused her doctoral dissertation on the optimization of best management practices across a watershed to maximize pollutant reduction at minimal costs.

SELECTED PROJECT EXPERIENCE

Blacks Fork and Smiths Fork E. coli and Sediment TMDLs; Wyoming Department of Environmental Quality; Multiple Counties, Wyoming. SWCA completed TMDLs and watershed plans for the Blacks Fork and Smiths Fork watersheds in southwest Wyoming.

The work included evaluating the relative sources of sediment and E. coli from wildlife and livestock in U.S. Forest Service allotments, agricultural subwatersheds, and failing septic systems. Watershed load allocations were used to develop a U.S. Environmental Protection Agency (EPA) nine-element watershed plan with specific best management practices targeted for each pollutant of concern. Role: Project Manager. Pollutant loading assessment, stakeholder meeting facilitation, and watershed planning.

Rockport, Echo, and East Canyon Reservoirs–TMDLs and Watershed Plans; Utah Division of Water Quality; Weber River Watershed, Utah. SWCA completed TMDLs for East Canyon Reservoir, Rockport Reservoir, and Echo Reservoir, all of which were listed as impaired for low dissolved oxygen related to excess nutrients. The work included developing site-specific water quality standards that included dissolved oxygen endpoints for a cold-water fish refuge, chlorophyll a, and algal composition. The approved TMDLs incorporate modeling of nutrient dynamics, algal growth, and dissolved oxygen in the river and the reservoirs. The TMDLs also included EPA nine-element watershed plans to reduce loads from nonpoint and point sources in the watershed. Role: Project Manager.

Pollutant loading assessment, water quality characterization, and watershed planning.

East Canyon Creek Stream Restoration; Snyderville Basin Water Reclamation;

Summit County, Utah. SWCA was contracted to oversee the design and installation of stream restoration practices along East Canyon Creek including revetments, bank stabilization, and riparian plantings. The goal of the project was to improve dissolved oxygen in the creek through shading, stream bank stabilization, and reduced temperatures, as identified in the East Canyon Creek TMDL. Role: Project Manager and restoration design.

Bear River and Cutler Reservoir TMDLs; Utah Department of Environmental Quality; Box Elder County, Utah. SWCA conducted data assessment and evaluation, including assessment of watershed pollutant loadings, water quality criteria exceedances, and beneficial use impairment assessment for the Bear River, a heavily used water body, and Cutler Reservoir, a very shallow reservoir with extensive wetlands and riparian areas. Role: Project Manager. Responsible for pollutant loading assessment, water quality characterization, identification of pollutant thresholds, and sensitivities for open water and wetlands systems. The Bear River is a heavily used water body, as are most of the tributary inflows to the river and the reservoir. Cutler Reservoir is a very shallow reservoir with extensive wetlands and riparian areas. Inflows to the system include municipal, irrigation, and industrial discharges, and stormwater runoff.

YEARS OF EXPERIENCE

EXPERTISE

Clean Water Act program implementation

Limnology, water quality, and water resources

Watershed management and nonpoint source best management practices

Water policy

Project management and program leadership

EDUCATION

Ph.D., Natural Resources; University of Vermont, Burlington; 2007

M.S., Environmental Science and Policy; Central European University, Vienna, Austria; 2000

B.S., Biology and Environmental Science; Willamette University, Salem, Oregon; 1998

KRISTIE KILGORE, SENIOR TECHNICAL ADVISOR

Ms. Kilgore is an environmental, water, and wastewater project manager and hydrogeologist with 30 years of compliance, water resource management, and project management experience, and a diverse portfolio of skills including groundwater and surface water; stormwater;

wastewater and reclaimed water; solid and hazardous waste;

construction; and water, waste, and energy sustainability. She is a former state agency Sr. Hydrologist/Advisor for high-profile projects. She is adept at metrics reporting and successful in establishing and achieving interim and final project goals using milestones and team collaboration skills. Ms. Kilgore is also experienced in feasibility trade-off studies for water reclamation/reuse, stormwater management, and watershed protection (using diversion, contact minimization, and best management practices). She is flexible and adaptable to changing priorities and types of assignments, demonstrated by working at state agencies, as a consultant serving state agencies, and as a consultant to the regulated water and wastewater industry. She has resolved a backlog for both Arizona and New Mexico state agencies, using process improvement and Lean Six Sigma-type approaches.

SELECTED PROJECT EXPERIENCE (∗ denotes project experience prior to SWCA)

Rio Tinto Kennecott Third-Party EIS Contractor; Rio Tinto Kennecott; Salt Lake County, Utah. Role: Water Senior Reviewer/Subject Matter Expert (SME).

* Underground Copper Mine Environmental Permitting; Tucson, Arizona. Role:

Project Manager and Water SME.

* County Regional Reclamation Facility Closure Permitting; Tucson, Arizona. Role:

Project Manager, Water SME.

* Emergency Action Rio Grande Fuel Spill; Santa Fe, New Mexico. Role: On-scene coordinator for emergency response actions for project river.

* Office of State Engineer Water Rights Backlog Reduction Project; New Mexico.

Role: Senior Water Resource Specialist/Project Manager.

* Underground Copper Mine Run-off and Hydraulics Assessment for Sizing Culverts, Dams, NPDES Outfalls; New Mexico. Role: Project Manager.

* Underground Copper Mine Baseline Water Sampling (Springs, Creeks, Seeps, Stormwater, and Groundwater) and Comparison to Standards; Catalina Forest, Arizona. Role: Project Manager/Water SME.

* Inactive Underground and Surface Mine Closure and Reclamation Planning;

Tombstone, Arizona. Role: Project Manager/Water SME.

* Mount Lemmon Service Area Watershed Study and Wastewater Management Plan (prior firm for Pima County Regional Wastewater Reclamation Department);

Mount Lemmon, Arizona. Role: Assistant Project Manager, Water SME.

* Compressor Station Outfall, TMDL, and Discharge Investigation; Arizona (state-wide). Role: Project Manager and Water SME.

YEARS OF EXPERIENCE

EXPERTISE AND EXPERIENCE

Hydrogeology Green-Ampt and HEC modeling Clean Water Act compliance NPDES and AZPDES Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Resource Conservation and Recovery Act (RCRA) Clean Air Act National Environmental Policy Act (NEPA) California Environmental Quality Act Endangered Species Act Migratory Bird Treaty Act Environmental site investigations Remediation and emergency actions

EDUCATION

B.S., Geology; Arizona State University, Phoenix; 1986

TRAINING

Lean Six Sigma Green Belt Class – specialized for efficiency in government and kaizen Contracts and cash flow management Project management I & II Risk management Arizona Governmental University Leadership Development for efficiency in government (2002) Greater Tucson Leadership Class (2008)

AWARDS / HONORS

USAF 355th Fighter Wing Civil Engineering Squadron (CES) Honorary Squadron Commander ADEQ Agency Director’s Super Nova Recipient Water Division Director’s Constellation Team Leader Recipient

EXECUTIVE LEADERSHIP

Greater Tucson Leadership Board of Director Member (2008–2012) Southern Arizona Environmental Management Society Board of Director Member (2007–2012)

MARK MURPHY, PH.D., SENIOR TECHNICAL ADVISOR

Dr. Murphy has extensive experience in stream restoration, stormwater management, watershed science, and Clean Water Act (CWA) and National Environmental Policy Act (NEPA) compliance. Dr. Murphy’s research focuses on hydrological connectivity in arid watersheds. After receiving his Ph.D. in geology from Johns Hopkins University, Dr. Murphy was employed by Pacific Northwest National Laboratory and the State of New Mexico, Office of the State Engineer. In 2013 and 2014, Dr. Murphy assisted the U.S. Environmental Protection Agency (EPA) with the definition of CWA waters of the U.S. Dr. Murphy is a registered geologist in the state of Arizona.

He has served on advisory boards to Tucson Water, Pima County Regional Flood Control District, and Ciudad Soil and Water Conservation District. Dr. Murphy has taught environmental science and geology at Arizona State University, University of Richmond (Virginia), and Heritage College.

SELECTED PROJECT EXPERIENCE (∗ denotes project experience prior to SWCA)

* Arizona Sycamore Habitat Preservation Plan; Confidential Client; Sierra County, New Mexico. In support of a permitting action, provided geomorphology and surface water hydrology in the development of a management plan for the cottonwood-willow riparian community along Las Animas Creek in south-central New Mexico. The gallery forest is significant as the furthest eastern occurrence of Arizona sycamores. Role:

Hydrologist/Geomorphologist.

* Ute Reservoir Watershed-Based Water Quality Plan; Quay and Harding Counties, New Mexico. Using CWA Section 319 (h) funding, completed a watershed loading model, assessment, and best management practices for an impaired reach of the Canadian River entering Ute Reservoir in eastern New Mexico. The challenge was the size of the watershed (over 3,800 square miles), primarily made of rangeland. Role:

Project Manager/Senior Planner.

* Water Quality Monitoring Plan; State of New Mexico; Ute Reservoir, Logan, New Mexico. Under a grant from the State of New Mexico, developed a water quality monitoring plan for a water supply reservoir in eastern New Mexico. Water quality impairments included nutrients and bacteria (E. coli) due to watershed loading.

Monitoring was completed over four seasons and established the potential for eutrophication and algal blooms. Role: Project Manager/Senior Planner.

* San Timoteo Creek Restoration Study; Inland Empire Resource Conservation District; Redlands, California. Retained to assist the Inland Empire Resource Conservation District with a geomorphic assessment of the stability of a dissected alluvial fan adjacent to San Timoteo Creek. Role: Geomorphologist. Completed an applied morphological evaluation of the creek and a section of bank instability and prepared a mitigation plan.

* Assessment of Riparian Restoration Potential on the Lower Gila River; Nature Conservancy; Yuma, Arizona. Role:

Geomorphologist. Identified geomorphically favorable sites on the lower Gila River, near Yuma, for preservation, enhancement, or restoration of riparian and marsh communities.

* Habitat Characterization Project, Arid West Water Quality Research Project; Pima County Regional Wastewater Reclamation Department; Tucson, Arizona. This project evaluated the ecological impact of surface water discharges from wastewater treatment plants on western ephemeral washes. Role: Project Manager/Geomorphologist. Technical contribution was in geomorphological and hydrogeological aspects of riparian ecosystem restoration.

YEARS OF EXPERIENCE

EXPERTISE

Stream restoration

NEPA compliance

Water quality

CWA compliance

EDUCATION

Ph.D., Geology; Johns Hopkins University, Baltimore, Maryland

M.S., Geology; University of New Mexico, Albuquerque

B.S., Earth Science; University of California

REGISTRATIONS / CERTIFICATIONS

Registered Professional Geologist, Arizona No. 33753; Arizona State Board of Technical Registration; 1999

MEMBERSHIPS

Member, American Water Resources Association

VICTORIA CASTEEL, B.S., ASSISTANT PROJECT MANAGER / ARIZONA

REGULATORY SPECIALIST

Ms. Casteel serves as an environmental planner, project manager, and Clean Water Act (CWA) specialist in SWCA’s West Region. She has over 17 years of experience in environmental and water resources, with a specialty in CWA compliance. She provides guidance, agency coordination, and technical expertise to ensure environmental compliance for her clients for a wide range of transportation, recreation, energy, transmission, commercial, and residential development projects. She is proactive and responsive to her clients' needs while preparing a variety of documents, such as CWA Section 404 Jurisdictional Delineations, Nationwide and Individual Permit applications, Section 401 Water Quality Certification applications, Section 402 Stormwater Pollution Prevention Plans (SWPPPs), National Environmental Policy Act (NEPA) documentation such as categorical exclusions and environmental assessments (EAs), and decision files/administrative records.

SELECTED PROJECT EXPERIENCE

Roosevelt Habitat Conservation Plan Amendment Environmental Assessment; Salt River Project Agricultural Improvement and Power District (SRP); Gila County, Arizona. SRP is requesting an amendment of the Roosevelt Lake Habitat Conservation Plan, an amended Incidental Take Permit (ITP) pursuant to Section 10 of the Endangered Species Act, and approval for a planned deviation from the normal operating criteria identified in the U.S. Army Corps of Engineers (USACE) 1997 Water Control Manual for Modified Theodore Roosevelt Dam. SWCA is preparing an EA in coordination with the U.S. Fish and Wildlife Service and the USACE to evaluate the environmental effects of the project. Role: Assistant Project Manager for the NEPA compliance services and Water Resources Specialist. Conducted the water resources analyses for the EA.

Sedona Airport SWPPP; Sedona-Oak Creek Airport Authority; Sedona, Yavapai County, Arizona. The Sedona-Oak Creek Airport requires coverage under the Arizona Department of Environmental Quality, Arizona Pollutant Discharge Elimination System (AZPDES) Industrial Stormwater Multi-Sector General Permit (MSGP) for stormwater discharges to Oak Creek, which is an impaired and Outstanding Arizona Water located within 2.5 miles of the site. SWCA prepared the SWPPP to support the AZPDES permit for the airport. Role: Environmental Project Manager and Water Resources Specialist.

Conducted a site visit and prepared the SWPPP in support of the AZPDES MSGP for this Sector S1 facility.

Moonlight Ridge; Forestar Group Inc.; Pinal County, Arizona. This residential development project involved improvements to on-site drainage features. SWCA conducted a significant nexus analysis, including a review of the associated watershed and its potential for contribution and connection to downstream waters of the U.S.

(WOTUS), in support of an approved jurisdictional determination (AJD) request to the USACE. The USACE concurred with our findings of no WOTUS on-site and issued the AJD in November 2022. Role: Environmental Project Manager and Water Resources Specialist. Conducted a field survey for potential WOTUS and prepared an AJD request with significant nexus analysis in compliance with USACE guidance.

Water Infrastructure Finance Authority of Arizona (WIFA) Town of Queen Creek Environmental Information Document (EID);

WIFA; Queen Creek, Maricopa County, Arizona. SWCA provided the Town of Queen Creek with an EID and completed associated environmental studies in support of its application for federal and state funding sources. Role: Water Resources Specialist. Completed the water resources review and summary for the EID, including a review of available data on surface and groundwater quantity and quality.

YEARS OF EXPERIENCE

EXPERTISE

Environmental project management

Water resources/CWA compliance

Environmental planning/permitting

NEPA compliance

EDUCATION

B.S., Environmental Water and Resource Economics; University of Arizona College of Agriculture & Life Science, Tucson; 2005

Graduate coursework, Donald Bren School of Environmental Science and Management; University of California, Santa Barbara; 2005

REGISTRATIONS / CERTIFICATIONS

Qualified Preparer of Stormwater Pollution Prevention Plans (QPSWPPP)

Qualified Compliance Inspector of Stormwater (QCIS)

Certified Wetland Delineator; USACE;

ARI DISSER, B.S., ASSISTANT PROJECT MANAGER / WATERSHED SCIENTIST

Ms. Disser is a water quality specialist in SWCA’s Salt Lake City office with 6 years of experience conducting water resources studies and environmental investigations in the Intermountain West. Ms. Disser has expertise in water quality sampling, data visualization and analysis techniques, wastewater discharge permitting, hydrology, technical writing, and project management. She has played a key role on the SWCA team for numerous water resources projects as a project manager, performing research, authoring technical reports, and analyzing and interpreting water quality data at the state level. Ms. Disser currently leads data collection and analysis efforts for the Provo River Watershed Water Quality Project, where she manages the project database and data analysis.

SELECTED PROJECT EXPERIENCE

Provo River Watershed Water Quality Analysis; Central Utah Water Conservancy District; Orem, Utah County, Utah. SWCA will compile existing relevant information for the watershed, develop data-driven approaches to identify problem areas, and make recommendations for water quality improvement. The annual report and consecutive updates to the annual report will be developed within the context of an ESRI online Story Map where watershed water quality analyses are displayed in an interactive, web-based format. Role: Assistant Project Manager and Data Analysis Lead.

Heber Valley Watershed Plan; Wasatch Conservation District; Utah. SWCA developed an EPA nine-element watershed plan for the Heber Valley watershed to address water quality problems by identifying potential sources of pollution and prioritizing restoration and protection strategies. SWCA engaged stakeholders by forming an advisory committee to help steer the development of the plan including the development of goals, identification of projects, and development of an implementation plan and schedule. SWCA also generated project concepts that will include cost estimates and load reductions as part of the implementation plan. Role: Water Quality Data Analyst and Assistant Project Manager. Conducted data analysis on water quality data obtained throughout the watershed and was the lead author of the report. Worked with the SWCA GIS team to complete maps and figures to support the watershed plan.

Davis County Wastewater System Study; Davis County, Utah. SWCA completed a study to inform future decisions related to development and wastewater management.

SWCA implemented a mass-balance model of nitrogen loading to provide septic system density recommendations in the study area and developed spatial models of aquifer sensitivity and vulnerability to groundwater contamination. Data collection involved compiling existing information, completing groundwater and surface water sampling, and compiling and analyzing the data. Role: Assistant Project Manager/Technical Author. Assisted in managing the project and the water quality/groundwater data analysis efforts.

Dry Weather Screening; Utah Department of Transportation (UDOT); Multiple Counties, Utah. SWCA supported UDOT in complying with their National Pollutant Discharge Elimination System (NPDES) municipal separate storm sewer system (MS4) permit by conducting dry weather screening of all UDOT stormwater outfalls. SWCA managed and executed the effort to visit approximately 3,000 stormwater outfalls and “screen” them to evaluate their condition and the potential presence of illicit discharges through each outfall. Role: Data QA/QC Scientist. Responsible for conducting data management and QA/QC processes on the field data; helped to create a data QA/QC process for data delivered to UDOT.

Wet Weather Monitoring; UDOT; Multiple Counties, Utah. SWCA is monitoring stormwater runoff from various UDOT facilities, preparing a year-end report quantifying pollutant loads from UDOT facilities, and describing methods of stormwater sample collection as mandated by UDOT’s NPDES MS4 permit. Role: Project Manager and Quality Scientist. Responsible for coordinating stormwater sampling, communicating with UDOT, managing the project team and project invoices, preparing flow-weighted composite samples following storm events, completing data analysis on stormwater data, and preparing the final annual report.

YEARS OF EXPERIENCE

EXPERTISE

Data management and analysis

Quality assurance/quality control

Water quality monitoring

Watershed planning

Project management

Utah Pollutant Discharge Elimination System (UPDES) permit compliance

National Environmental Policy Act (NEPA) compliance

EDUCATION

B.S., Environmental Science; Southern New Hampshire University, Durham;

MARY HUISENGA, M.A., WATER QUALITY LEAD

Ms. Huisenga is a senior natural resources team lead and project manager, with a focus on watershed science and energy permitting. She has over 15 years of experience in project management, watershed and wildfire studies, energy permitting, climate adaptation, and water resource planning. With her extensive experience in water resources, she has managed watershed evaluation projects, led stakeholder engagement, and provided hearing testimony for both private and government entities. For her projects, Ms. Huisenga assembles and manages teams with diverse skillsets (such as planners, restoration engineers, geospatial data engineers, ecologists, hydrologists, and economists) to achieve project objectives. Ms. Huisenga also supports projects as a subject matter expert, reviewing documents and data analysis to provide clients with high-quality deliverables.

SELECTED PROJECT EXPERIENCE

New Mexico Post-Fire and Flood Acequia Damage Assessments; New Mexico Interstate Stream Commission (ISC); Southern New Mexico. SWCA is supporting the New Mexico ISC in assessing damages to acequia ditches in southern New Mexico that were damaged during the 2022 fires and subsequent flooding events. SWCA conducted field investigations to document damages and developed a report to summarize the findings and identify potential projects to repair the ditches. Role: Project Manager.

Managed project and supported field study implementation and report development.

Provo River Watershed Water Quality Analysis; Central Utah Water Conservancy District; Orem, Utah County, Utah. SWCA is compiling existing relevant information in the watershed, developing data-driven approaches to identify problem areas, and making recommendations for water quality improvement. The annual report and consecutive updates to the annual report will be developed within the context of an ESRI online Story Map where watershed water quality analyses are displayed in an interactive, web-based format. Role: Project Manager. Ms. Huisenga is currently managing year 3 of the water quality analysis, overseeing core team outreach, data analysis, and quality control.

Watershed Sediment Management Plan; Denver Water; Denver, Colorado. SWCA developed a watershed sediment management plan to reduce sediment loading to one of the reservoirs in the Denver Water watershed. The purpose of the plan was to develop projects and the framework for watershed restoration implementation for sediment load reduction projects. Role: Project Manager.

Post-Wildfire Assessment; Denver Water; Denver, Colorado. SWCA conducted a post-wildfire assessment to determine the risk for post-fire impacts (with a focus on sediment) to downstream waterbodies. SWCA performed both a drone flight and ground truthing to determine the burn severity and high-risk areas for debris flows and sediment mobilization and provided recommendations for mitigation efforts and future monitoring of the burn area. Role: Project Manager.

Gross Reservoir Fire Management and Response Plan; Denver Water; Nederland, Boulder County, Colorado. SWCA provided environmental services for the Gross Reservoir Property Fire Management and Response Plan for the Denver Water Gross Reservoir Property. SWCA gathered the necessary data relevant to mitigation, prevention, patrol, and response plans for local, state, and federal entities and convened stakeholders to ensure plan requirements were met. SWCA used public data sources, including the Colorado Forest Atlas fire behavior and wildfire risk map themes, to present an assessment of wildfire hazard and risk. Role: Subject Matter Expert/Client Manager.

Fire Response and Readiness Framework; Denver Water; Multiple Counties, Colorado. SWCA led and facilitated a planning process designed to provide coordination, organization, and a framework for decision making to be used by Denver Water to mitigate, plan for, respond to, and recover from wildfire. SWCA developed decision support platforms and tools within an ESRI online Site Hub to ensure collaborative and efficient emergency response to wildfire in the Denver Water watershed. Role: Project Manager.

YEARS OF EXPERIENCE

EXPERTISE

Safe Drinking Water Act and Clean Water Act compliance

Water quality research and monitoring

Federal, state, and county permitting

Habitat and resource equivalency analysis

Natural resource damage assessments

EDUCATION

M.A., Geography; University of Colorado, Boulder; 2012

B.S., Environmental Science, m:

Biology; University of Iowa, Iowa City;

SOPHIE SWANSON, M.S., SENIOR WATER RESOURCE ENGINEER AND WATER

QUALITY MODELER

As a water resource engineer and hydrologist based in SWCA’s Denver office, Ms. Swanson has a wide range of experience in mine water engineering, including geochemistry, groundwater characterization and modeling, surface water management plans, environmental characterization, reclamation planning, seepage modeling, water balance modeling, and third-party auditing. Prior to joining SWCA, Ms. Swanson worked as a consultant on a diverse range of mining projects all over the world in all phases of mine life. She has written sections of numerous mine feasibility studies, environmental impact assessments, environmental management plans, closure plans, and various permitting documents. Ms. Swanson has extensive experience with drilling and well construction, including packer testing, cone penetrometer testing, aquifer testing, well installation and development, vibrating-wire piezometer installation, and geotechnical logging.

SELECTED PROJECT EXPERIENCE (∗ denotes project experience prior to SWCA)

* Armenia Mining Sector Development Strategy, World Bank; Republic of Armenia.

Prepared total maximum daily load (TMDL) and maximum contaminant level (MCL) guidelines and recommendations for a World Bank–funded Mineral Sector Development Strategy document. The Republic of Armenia is a developing country that previously did not have any TMDL or MCL guidelines. The Mineral Sector Development Strategy was approved by the government and resulted in seven major amendments to the country’s Mining Code. The legislation strengthened the environmental aspects of the mining sector. Role: Mine water engineer, hydrologist.

∗ Ochoa Project; Intercontinental Potash Corporation; Lea County, New Mexico, United States. Participated in preliminary aquifer testing of the brackish Capitan Aquifer as a non-potable water source for the mine. The aquifer testing comprised observation wells in overlying potable alluvial aquifers to ensure that pumping in the deeper Capitan Aquifer did not draw down the shallower potable aquifers. Role: Field engineer.

∗ Corani Project; Bear Creek Mining; Puno Province, Peru. Created a probabilistic water balance model to prove and confirm that the site can maintain a “zero-discharge” condition with regards to mine-impacted water. Authored a closure plan for the project as part of the Bankable Feasibility Study. The closure plan included a groundwater model and geochemical model to predict hydrogeologic impacts of the open pit and the tailings storage facility. A closure cost estimate was prepared to return the mine site to the pre-mining condition. The work was included in the cost model for the Bankable Feasibility Study. Role: Mine water engineer and mine closure/reclamation.

∗ Confidential Garnet Project; Confidential Client; Hokitika, South Island, New Zealand. Prepared a water balance model and conducted a preliminary hydrogeologic assessment to assess potential effects on surface water and groundwater supplies in low-water scenarios. The results of this model and assessment informed preliminary mine planning and process plant design options. Role: Engineer.

∗ Cangrejos Mine; Lumina Gold; El Oro Province, Ecuador. Participated in an integrated groundwater model to predict underground mine dewatering requirements during mine life. The project involved collecting packer-test data of the hydraulic conductivity of the rock mass followed by steady-state and transient (time variant) calibration. The model simulated the dewatering of the mine over time by simulating the development mine plan and considering the impact of hydro-structural elements. Role:

Mine water engineer, hydrogeologist, hydrologist, and dewatering prediction.

YEARS OF EXPERIENCE

EXPERTISE

Hydrogeology, hydrology, and geochemistry

Water resource engineering

Groundwater modeling

Feasibility studies

Well drilling and construction

EDUCATION

M.S., Mining Engineering Management;

Colorado School of Mines, Golden;

B.S., Mechanical and Chemical Engineering; Trinity University, San Antonio, Texas; 2014

CERTIFICATIONS

Engineer in Training, Texas and Colorado

MSHA Part 46 Experienced Miner

PUBLICATION

Swanson, S. et al. 2016. Mine Water Balances – A New Proposed Approach.

International Mine Water Association Conference Proceedings, Leipzig, Germany; July 2016

TRAINING

Modeling and Analysis with Groundwater Visas, ESI Groundwater Modeling Specialists; 2015 https://imwa.info/docs/imwa_2016/IMWA2016_Swanson_231.pdf#:%7E:text=Effective%20and%20accurate%20management%20of%20water%20resources%20in,an%20essential%20element%20in%20the%20water%20balance%20design.

https://imwa.info/docs/imwa_2016/IMWA2016_Swanson_231.pdf#:%7E:text=Effective%20and%20accurate%20management%20of%20water%20resources%20in,an%20essential%20element%20in%20the%20water%20balance%20design.

KEVIN BOESCH, B.A., STORMWATER COMPLIANCE LEAD

Mr. Boesch is a Certified Professional in Erosion and Sediment Control with over 20 years of Clean Water Act Sections 401, 402, and 404 permitting and dust control experience. He is a former permit writer for the Louisiana Department of Environmental Quality with a diverse background in municipal, commercial, and minor industrial wastewater discharge and stormwater permits. Mr. Boesch routinely conducts environmental monitoring/training and produces stormwater pollution prevention plans (SWPPPs) for large energy and infrastructure projects. He has conducted stormwater training and inspections, provided BMP installation oversight, and supported environmental protection administration for contractors during the construction of several large linear projects to bring those projects’ stormwater documents and work activities into compliance with Construction General Permit (CGP) requirements for state environmental agencies.

SELECTED PROJECT EXPERIENCE (∗ denotes project experience prior to SWCA)

* Stormwater Compliance Template Creation and Training; Arizona Department of Transportation (ADOT); Arizona. Supported ADOT Water Quality Section with SWPPP template updates. Role: Stormwater Specialist. Mr. Boesch provided ADOT with required updates to existing stormwater templates. He facilitated a workshop for ADOT personnel to beta test the newly created documents, addressed template comments, and trained employees on using the templates.

* Tangerine Rd PI – La Canada Road to La Cholla Road; Tucson Electric Power (TEP); Tucson, Arizona. Role: Project Manager / Stormwater Specialist. Mr. Boesch created the SWPPP and coordinated with regulators and the power company to obtain CGP coverage. As a TEP stormwater inspector, he reviewed and informed contractors on the project status for compliance with the ADEQ CGP, erosion control specifications, contractor’s activities, project special provisions, and Town of Oro Valley mitigation requirements. He performed SWPPP inspections, updated graphics, and marked-up the plan sheets.

* APS EHV Stormwater Monitoring; Sturgeon Electric Company Inc.; Arizona. Role:

Erosion Control Coordinator. Mr. Boesch served as Erosion Control Coordinator for Sturgeon on the EHV Transmission Construction Project. He coordinated directly with the APS stormwater monitors and environmental coordinators during line construction activities and was available to ensure environmental protection and coordinate with APS representatives. The responsibilities included attending preconstruction meetings;

reviewing all project documents, including environmental clearance and project specifications; coordinated with the APS stormwater monitors; and reviewed the project work areas to become familiar with resources and identify any areas where changes were required to comply with U.S. Army Corps of Engineers (USACE) Guidelines and Maricopa County Dust Control Regulations.

* USACE Tres Rios Environmental Restoration Phase 3A; Kiewit Corporation;

Arizona. Role: Project Manager / Stormwater Specialist. Mr. Boesch served as a consultant to the contractor to develop the SWPPP and Monitoring Plan for the Gila and Salt River environmental restoration project. He developed and facilitated stormwater permit and monitoring training programs for the contractor, including educating team leads on the ADEQ CGP, Monitoring Plan requirements, USACE guidelines, and Maricopa County Dust Control regulations.

* US 60 Gonzales Pass; ADOT/Kiewit Corporation; Pinal County, Arizona. Role: Project Manager / Stormwater Specialist. Mr. Boesch was a third-party stormwater inspector for ADOT; he submitted findings to the owner/operator of the project. He acted as a consultant to the contractor to review and update SWPPP and Monitoring Plan practices. Mr. Boesch performed two on-site contractor training sessions regarding ADEQ CGP, National Forest Guidelines, and Pinal County Dust Control regulations. He also provided guidance on stormwater erosion control components.

YEARS OF EXPERIENCE

EXPERTISE

Stormwater Pollution Prevention Plan

Regulatory agency coordination

Erosion modeling and assessment

Stormwater management

EDUCATION

B.A., Biology, e: Applied Zoology;

Southeastern Louisiana University, Hammond; 2002

REGISTRATIONS / CERTIFICATIONS

Certified Professional in Erosion and Sediment Control No. 4754

TRAINING

Arizona General Contractors Erosion Control Coordinator Trainer

EPA NPDES Permit Writers Course

Nevada General Contractors Water Pollution Control Manager Trainer

ISO 140001 Environmental Management Systems Internal Auditor Training

MEMBERSHIPS

Member, EnviroCert International, Inc.

BEN SNYDER, M.S., PE, SENIOR RESTORATION ENGINEER

Ben Snyder is a versatile engineer and project manager with over 18 years of rich and varied experience in the fields of hydrology, hydraulics, sediment transport, computer-aided design, and project implementation.

His leadership and creativity have helped to deliver successful projects ranging in size from localized bank stabilization efforts to reach-scale process-based river restoration. He has extensive experience in the application of advanced analytical techniques to the design of holistic flood risk management and habitat restoration projects in both riverine and coastal environments.

SELECTED PROJECT EXPERIENCE

Diamond Fork and Sixth Water Creek Environmental Assessment; Central Utah Water Conservancy District; Orem, Utah. SWCA is preparing the environmental assessment for the Diamond Fork System Environmental Update. The project involves system updates and improvements to a component of the Central Utah Project to enhance aquatic ecosystems and protect valuable infrastructure. Role: Professional Engineer. Conducted two-dimensional hydrodynamic modeling to support habitat restoration planning, particularly for Ute ladies'-tresses (Spiranthes diluvialis).

Yellowstone Diversion Federal Energy Regulatory Commission (FERC) License Surrender; Moon Lake Electric Association (Moon Lake), Inc.; Altamont, Duchesne County, Utah. SWCA is supporting Moon Lake through the decommissioning process of a small hydroelectric facility in the Ashley National Forest in Utah. The project centers on the removal of a 15-foot-high, 313-foot-long rock-and-crib diversion dam and an associated 2-mile-long penstock. SWCA has guided Moon Lake through the FERC surrender of license application, has performed all surveys, and has prepared all documents in the application. These efforts consisted of biological and cultural resources field surveys, wetland delineation, National Environmental Policy Act (NEPA) analysis, a historic properties treatment plan, a dam removal and restoration plan, and a restoration design for the stream area inundated by the dam. Role: Professional Engineer.

Uintah Decommissioning; Moon Lake Electric Association, Inc.; Duchesne County, Utah. SWCA is supporting Moon Lake through the decommissioning process of a small hydroelectric facility in the Ashley National Forest in Utah. The project centers on the removal of a 15-foot-high, 313-foot-long rock-and-crib diversion dam and an associated 2-mile-long penstock. SWCA has guided Moon Lake through the FERC surrender of license application, has performed all surveys, and has prepared all documents in the license surrender. These efforts consisted of biological and cultural resources field surveys, wetland delineation, NEPA analysis, a historic properties treatment plan, a dam removal and restoration plan, and a restoration design for the stream area inundated by the dam. SWCA facilitated meetings between Moon Lake, FERC, and the U.S. Forest Service to set expectations regarding the level of NEPA analysis and engagement with other federal and state agencies. SWCA also outlined a conceptual restoration plan for the Yellowstone River and associated riparian area and uplands. Primary resource issues of concern included recreation, fisheries, and historic structures. SWCA supported regulatory aspects of the project, the biological and cultural surveys, and the engineering designs. Role: Professional Engineer. Develops habitat restoration design and oversees development of decommissioning plan.

YEARS OF EXPERIENCE

EXPERTISE

Sediment transport in stream assessment and design Risk assessment for flood risk management studies Rainfall-runoff modeling Two-dimensional hydrodynamic modeling Geomorphic channel design and implementation oversight Project management

EDUCATION

M.S., Civil Engineering – Hydraulics;

Colorado State University, Fort Collins;

B.S., Watershed Science; Colorado State University, Fort Collins; 2002

CERTIFICATION

Professional Engineer, Civil, Utah No.

12111059-2202; 2021

TRAINING

Hydrologic and hydraulic modeling for Dam Safety Studies Steady Flow with HEC-RAS Sediment Transport in Stream Assessment and Design Unsteady Flow Analysis with HEC-RAS Advanced 1D/2D Modeling with

HEC-RAS

Advanced Applications of HECHMS Sediment Transport Analysis with

HEC-RAS

MIKE 21/3 Transport Modeling Risk Assessment for Flood Risk Management Studies U.S. Army Corps of Engineers Leadership Development Program

JIM DAWSON, M.S., PG, CHMM, SENIOR HYDROGEOLOGIST

Mr. Dawson is a senior environmental specialist/project manager who provides regulatory compliance consulting services for oil and gas operations, including environmental site assessments and due diligence activities;

stormwater permitting and inspections; preparation of Spill Prevention, Control, and Countermeasure (SPCC) Plans, Facility Response Plans, Pipeline Spill Response Plans, Emergency Operations Plans, and Integrated Contingency Plans; spill investigation, assessment, and cleanup services; and investigation and cleanup/remediation of reserve pits and legacy contamination sites. Mr. Dawson is a Professional Geologist and Certified Hazardous Materials Manager with extensive field, regulatory, managerial, and consulting experience throughout the United States with diverse project experience, including contaminated soil and groundwater investigation, monitoring, and remediation; environmental site assessments and due diligence activities;

preparation of Bureau of Land Management applications for permit to drill (APDs) for oil and gas exploration and development of federal minerals; solid and hazardous waste management; environmental regulatory permitting and compliance assistance; groundwater resources studies; and unexploded ordnance (UXO) detection, discrimination, and remediation technologies.

SELECTED PROJECT EXPERIENCE

ONEOK Rockies Midstream Cowry Spill Support; ONEOK, Inc.; Richland County, Montana. SWCA prepared the Cowry Spill Cleanup Report for submission to the Montana Department of Environmental Quality. Activities included performing a site inspection, evaluating laboratory analytical results, reviewing ONEOK response actions, and assessing spill impacts on the environment. Role: Project Manager. Principal investigator for executing the scope of services, preparing the report, and certifying that ONEOK’s spill response met the Montana Department of Environmental Quality regulatory requirements.

Arrow Pipeline Services; Arrow Midstream Holdings, LLC; Dunn County, North Dakota. SWCA has been contracted on an "on-call" basis to conduct natural resource and cultural resource surveys and prepare environmental assessments (EAs), EA addendums, cultural resource reports, and any other documentation or surveys required by the National Environmental Policy Act (NEPA), the Bureau of Indian Affairs, or other pertinent agencies. Role: Environmental Specialist. Provide input on regulatory compliance permits and issues and prepare draft Pipeline Spill Response Plans.

Principal investigator for preparation of the Central Delivery Point Facility Response Plan and the Master SPCC Plan for pipeline compressor stations as well as the contaminated soil cleanup at the North Star fuel depot and the corresponding environmental spill response report; served as client and regulatory liaison for these projects.

Industrial Water Supply Well; Halcon Resources Corporation; Mandaree, Dunn County, North Dakota. SWCA was retained to conduct a groundwater resources study and select three locations on the client’s site to drill industrial water supply wells to meet oil and gas well hydraulic fracturing water requirements. Role: Project Manager.

Responsible for overall project management, including schedule and budget control, site inspections, personnel assignments, QA/QC review/approval of project deliverables.

Served as the principal investigator for the water supply study, regulatory liaison with the State Water Commission and the three affiliated Tribes, and client liaison.

YEARS OF EXPERIENCE

EXPERTISE

Project management

Regulatory permitting and compliance assistance

Soil and groundwater investigation and monitoring programs

Solid and hazardous waste management

Hydrogeologic investigations

EDUCATION

M.S., Geology; Virginia Polytechnic Institute and State University, Blacksburg; 1988

B.S., Geology; Virginia Polytechnic Institute and State University, Blacksburg; 1970

REGISTRATIONS / CERTIFICATIONS

Registered Professional Geologist, Wyoming; American Institute of Professional Geologists; 2006

TRAINING

8-hour OSHA Annual Refresher Courses, Safety Unlimited, Inc.; multiple years since 1990 Stormwater Workshop, North Dakota Water and Pollution Control Center;

CHRIS GARRETT, B.S., P.HGW., SENIOR HYDROGEOLOGIST

As a hydrologist and project manager for SWCA, and a registered Professional Hydrologist specializing in groundwater, Mr. Garrett is responsible for coordinating hydrologic investigations and water resource assessments with federal and state agencies, water and energy utilities, commercial and industrial clients, developers, and private landowners, as well as providing hydrologic analysis for environmental impact statements and environmental assessments.

Mr. Garrett has conducted more than 50 hydrologic investigations in Arizona and the western United States, including large, complex ecology/hydrology studies on the Rio Grande and Colorado Rivers. He has also provided expert support services for water rights adjudication cases on the Verde River, Little Colorado River, Colorado River, and San Pedro River. Mr. Garrett recently served as an expert witness in the San Pedro River water rights adjudication, an adjunct faculty member in water resources technology at Gateway Community College, and as a guest speaker for the Bureau of Land Management (BLM) training in aquifer testing. Mr. Garrett was the hydrologist for resource management plans for three BLM Field Offices in Utah.

SELECTED PROJECT EXPERIENCE

Estancia Basin Watershed Monitoring; Claunch-Pinto Soil and Water Conservation District; Torrance County, New Mexico. Conducted long-term, multiyear monitoring of forest and watershed health in relation to forest thinning on the eastern slopes of the Manzano Mountains for the Claunch-Pinto Soil and Water Conservation District, in order to evaluate the effectiveness of thinning treatments. Role: Senior Hydrologist.

Rio Grande Basin Water Quality Assessment; U.S. Bureau of Reclamation;

Colorado, New Mexico, and Texas. Assisted in the development of a surface water quality model on the Rio Grande system, including analysis of water quality on existing reservoirs on the Rio Grande, development of trends, and correlation analysis.

Information was used to assess different river operation plan effects on future water quality. Role: Hydrologist.

Pueblo of Sandia Habitat Restoration Monitoring; Pueblo of Sandia; Sandoval County, New Mexico. Assisted in hydrologic monitoring to support restoration efforts near perennial streams and springs. For this riparian ecosystem project on the Rio San Jose, conducted baseline monitoring, developed restoration plans, and conducted post-restoration monitoring. Role: Hydrologist.

San Pedro River National Conservation Area (SPRNCA) proceedings, Gila River General Stream Adjudication; Cochise County, Arizona. Testified in court on behalf of Freeport-McMoRan as an expert witness assessing the impact of riparian vegetation on streamflows within SPRNCA. Role: Expert Witness.

Wasatch County Health District; Wasatch County, Utah. Assisted with the design and execution of a data collection strategy and mass balance modeling to assess nitrate loading in the aquifer, as part of revising septic tank regulations. Included developing a groundwater model. Role: Senior Hydrologist.

Town of Wickenburg Water Resources Investigation, Phases I and II; Water Resources Consulting Southwest; Wickenburg, Maricopa County, Arizona. The Town was seeking to obtain additional water supply through installation of one or more new wells. Conducted general water resources investigation, aquifer testing, additional well and water quality information collection, and analysis of surface water resources.

Role: Hydrologist.

YEARS OF EXPERIENCE

EXPERTISE

NEPA compliance Expert witness services and litigation support Hydrology and water resource permitting; water supply analysis Ecological hydrology Groundwater/surface water interaction studies

EDUCATION

B.S., Hydrology; University of Arizona, Tucson; 1995

REGISTRATIONS / CERTIFICATIONS

Registered Professional Hydrologist, Arizona No. AZ, 04-H-1623; American Institute of Hydrology

TRAINING

Adjunct Faculty, Water Resources Technology Program, Gateway Community College; 2004–2008 BLM Guest Instructor in Hydrology;

AWARDS / HONORS

USDA Certificate of Merit, In Recognition of Contribution to the Rosemont Copper Project, March 2014

MEMBERSHIPS

Member, American Institute of Hydrology

NIRIT FINKELSHTIN, M.S., HYDROLOGIST

Ms. Finkelshtin has over 7 years of experience in civil engineering and water and natural resources. Before joining SWCA, she served as a staff engineer and project manager. Her primary duties included evaluating, analyzing, designing, and observing the construction of various civil engineering projects related to hydrology, hydraulics, and residential and commercial development. Ms. Finkelshtin has performed land-development feasibility analyses to create grading and drainage plans, utility reports, and improvements for public- and private-sector clients. Ms. Finkelshtin also conducts field surveying and waterways analyses, including flood-control improvements, bridge-scour analyses, and open-channel hydraulics. She has experience creating drainage master plans for subdivisions as well as Letters of Map Revision (LOMRs).

SELECTED PROJECT EXPERIENCE (∗ denotes project experience prior to SWCA)

* Harley’s Pond; Southern Sandoval County Arroyo Flood Control Authority (SSCAFCA); Sandoval County, New Mexico. Designed a flood-control facility for the SSCAFCA. Prepared the bid documents package, including contract documents, a specification book, and an engineer’s opinion of probable cost estimate for all design alternatives for the 30%, 60%, 90%, and 100% plans. Role: Quality Assurance/Quality Control (QA/QC). Performed QA/QC for the final design plans.

* Fiesta Drainage Master Plan and LOMR; Private Developer–Michael Sivage; Los Lunas, New Mexico. Prepared an overall drainage plan for future residential development, encompassing the evaluation of existing land conditions, soil types, and storm drain systems; data…